Abstract
A discharge tap (10) for liquid containers, in particular for connecting to the outlet neck or the outlet opening of a transportation and storage container for liquids, having a tap housing (11) in which a valve body being pivotable around a valve axle by means of a handle (12) for opening and closing a flow cross section of an outlet tube (13) is arranged, said handle being provided with a handle stop and a housing dome of the tap housing being provided with a housing stop, said handle stop and said housing stop being able to be locked relatively to each other via a securing device (16) for securing the locking position, the securing device (16) comprising a stop bolt (17) being able to be displaceable between a bolting position and an unbolting position in a translatory manner in direction of the valve axle.
Claims
1. 1. A discharge tap (10, 51) for liquid containers, in particular for connecting to the outlet neck or the outlet opening of a transportation and storage container for liquids, having a tap housing (11, 80) in which a valve body being pivotable around a valve axle by means of a handle (12, 52) for opening and closing a flow cross section (25) of an outlet tube (13) is arranged, a housing dome (23, 53) being formed at the outlet tube for mounting a valve shaft (20) provided with the handle at its shaft end (21) and extending out of the outlet tube, said handle being connected to the valve shaft in a torque-proof manner and being arranged on the shaft end with a hub part (18, 56), said hub part being provided with a handle stop (25, 69) for defining a shut-off position of the valve body and the housing dome being provided with a housing stop (27, 61), said handle stop and said housing stop being able to be locked relatively to each other via a securing device (16, 77) for securing the shut-off position, wherein the securing device (16, 77) comprises a stop bolt (17, 71) which is held at a guiding device arranged at the hub part (18, 56) and can be displaced between a locking position and an unlocking position in a translatory manner in direction of the valve axle by means of the guiding device, said stop bolt (17, 71), when in the locking position, being positioned in an engagement arrangement with a first bolt stop and a second bolt stop for securing the shut-off position, wherein the first stop bolt is formed by a first housing stop formed at the housing dome (53) and the second stop bolt is formed by a second housing stop formed at the housing dome and the stop bolt (71) is received between the housing stops.
2. The discharge tap according to claim 1, wherein the first stop bolt is formed by a first axial end (67) of an edge web (60) formed circumferentially at the upper edge (59) of the housing dome (53) and the second bolt stop is formed by a second axial end (72) of the edge web (60) arranged opposite the first axial end (67).
Description
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0023] In the following, preferred embodiments of the discharge tap are further described by way of the drawings.
[0024] In the figures,
[0025] FIG. 1 shows, in a first embodiment, a discharge tap in the shut-off position and having a securing device in the locking position;
[0026] FIG. 2 shows the discharge tap shown in FIG. 1 in the shut-off position having the securing device in the unlocking position;
[0027] FIG. 3 shows a stop bolt of the securing device in an isometric view;
[0028] FIG. 4 shows the stop bolt shown in FIG. 3 in a lateral view;
[0029] FIG. 5 shows the stop bolt shown in FIG. 3 in a further isometric view;
[0030] FIG. 6 shows a partial sectional view of the discharge tap shown in FIG. 1 cut along the line VI-VI in FIG. 1;
[0031] FIG. 7 shows a partial sectional view of the discharge tap shown in FIG. 2 cut along the line VII-VII;
[0032] FIG. 8 shows, in a further embodiment, a discharge tap in the opening position and having a securing device in the unlocking position;
[0033] FIG. 9 shows a tap housing of the discharge tap shown in FIG. 8;
[0034] FIG. 10 shows the discharge tap shown in FIG. 8 in the shut-off position having the securing device in the unlocking position;
[0035] FIG. 11 shows the discharge tap shown in FIG. 10 in the shut-off position having the securing device in the locking position;
[0036] FIG. 12 shows a cross-sectional view of the discharge tap shown in FIG. 11 cut according to the line XII-XII in FIG. 11.
DETAILED DESCRIPTION OF THE INVENTION
[0037] FIG. 1 shows a discharge tap 10 having a tap housing 11 and a handle 12 arranged at the tap housing 11, said handle 12 serving to actuate a valve body arranged in an outlet tube 13 and not further illustrated, said valve body being able to be displaced in an opening position and a shut-off position for opening and closing a flow cross section 25 (FIGS. 6, 7) of the outlet tube 13 by means of the handle 12.
[0038] In the illustrations according to FIGS. 1 and 2, the outlet tube 13 of the discharge tap 10 is provided with a locking cap 15 at its outlet end 14. In doing so, the configuration of the discharge tap 10 shown in FIG. 1 corresponds to the state of the discharge tap 10 while transporting a liquid container provided with the discharge tap 10.
[0039] For securing the shut-off position of the valve body, a securing device 16 is provided at the discharge tap, said securing device 16 comprising a stop bolt 17 held at the handle 12 arranged at the guiding device formed as a guiding web 33 (FIGS. 6, 7) here.
[0040] As shown in FIGS. 1 and 2, the stop bolt 17 is arranged at a hub part 18 of the handle 12, said hub part 18, as shown in FIGS. 6 and 7, being formed like a cap and being placed on an upper shaft end 21 of a valve shaft 20 with a hub sleeve 19 for transmitting a turning moment from the handle 12 to the valve shaft 20, at the lower end of which the valve body, not further illustrated, is located. The valve shaft 20 is mounted in a housing dome 23 formed at the tap housing 11 with a mounting collar 22 and is sealed with respect to a flow cross section 25 (FIG. 6) of the outlet tube 13 by means of sealing rings 24 arranged at the mounting collar 22.
[0041] As in particular FIG. 2 shows, the hub part 18 of the handle 12 of the discharge tap 10 comprises two handle stops 25, 26 formed in a circumferential wall 32 of the hub part 18, said handle stops 25, 26 limiting a turning movement of the handle 12 around a pivoting axle 27 defined by the valve shaft 20. In FIGS. 1 and 2, in which the discharge tap 10 is illustrated in the shut-off position, the handle stop 25, shown on the left-hand side in FIGS. 1 and 2 in each case, is in a stop position against a housing stop 27 formed at a stop tab 81 at the tap housing 11. The handle stop 26, shown on the right-hand side in FIGS. 1 and 2 in each case and defining an opening position of the valve body in a stop position against a housing stop 38 also formed at the stop tab 81, is spaced from the handle stop 25 via a recess 28 in the circumferential wall 32 of the hub part 18 so that a regulating distance s is enabled within the recess 28.
[0042] As shown in FIGS. 3 to 5, the stop bolt 17 comprises a bolt leg 29 as well as an actuating leg 30, extending essentially parallel to the bolt leg 29, for handling the stop bolt 17 and a stop base 31 connecting the bolt leg 29 to the actuating leg 30.
[0043] For connecting the stop bolt 17 to the hub part 18 of the handle 12, the guiding web 33, as shown in FIGS. 6 and 7, is formed integrally in the circumferential wall 32 of the hub part 18, the stop bolt 17 being able to be slid onto said guiding web 33 via a through opening 35 (FIG. 2) formed in a bottom wall 34 of the hub part 18 adjacent to the guiding web 33.
[0044] FIGS. 2 and 7 show the stop bolt 17 in its unlocking position in which the stop bolt 17 is inserted so far into the bottom wall 34 of the hub part 18 with the bolt leg 29 that a covering is not yet formed between the bolt leg 29 and the housing stop 27, meaning the handle 12 can be pivoted around the pivoting axle 27, so that the right handle stop 26 stops in a stop position against the housing stop 27 for transferring the valve body to an opening position when pivoting the handle 12 around the regulating distance s.
[0045] As can be seen in particular in FIG. 1, the stop bolt 17 is provided with a handling web 45 at its actuating leg 30, said handling web 45 comprising a through opening 46 which, in connection with a further through opening 50 provided at a circumferential edge of the locking cap 15, enables arranging a tamper-proof seal formed as a sealing wire for example to the discharge tap 10 in such a manner that displacing the stop bolt 17 in its unlocking position shown in FIG. 2 is only possible after destroying the sealing wire.
[0046] For displacing the stop bolt 17 from the unlocking position shown in FIGS. 2 and 7 to the locking position shown in FIGS. 1 and 6, the stop bolt 17 is inserted further into the through opening 35 parallel to the pivoting axle 37 until the stop base 31 rests against an opening edge 39 of the through opening 35 formed by the upper end of the guiding web 33. In the locking position, a covering, shown in particular in FIG. 6, is realized between the housing stop 27 and the bolt leg 29 in such a manner that the housing stop 27 formed by the stop tab 81 is received between the handle stop 25 and the bolt leg 29 of the stop bolt 17 in the shut-off position shown in FIG. 1 and that the stop bolt 17 forms the securing device together with the handle stop 25 and the housing stop 27 and that pivoting the handle 12 around the pivoting axle 37 is no longer possible in the opening position.
[0047] As shown in particular in FIG. 6, a surface 41 of the stop base is aligned flush with a visible surface 42 of the hub part 18 of the handle 12 in the locking position so that a flat seal surface 43 is formed in the transition from the surface 41 to the visible surface 42, said seal surface 43 being able to be used for applying a seal foil or a seal strip.
[0048] A synopsis of FIGS. 6 and 7 shows that displacing the stop bolt 17 from the locking position shown in FIG. 6 to the defined unlocking position shown in FIG. 7 can be realized without the stop bolt 17 disengaging from the guiding device formed by the guiding web 33. For defining the unlocking position as well as for securely arranging the stop bolt 17 to the hub part 18 of the handle 12, a bolt stop 47 is formed at the bolt leg 29 for forming a retaining device, said bolt stop 47 abutting against a lower side 49 of the hub part 18.
[0049] In FIG. 8, a discharge tap 51 is shown in a further embodiment comprising a tap housing 80 having a handle 52 according to the discharge tap 10, said handle 52 being arranged on a housing dome 53.
[0050] In contrast to the handle 52, which is arranged on the housing dome 23 of the discharge tap 10 in such a manner that the hub sleeve 19 of the handle 12 is directly connected to the mounting collar 22 of the valve shaft 20 as shown in particular in FIG. 7, securing the handle 52 to the housing dome 53 is realized in such a manner that locking lugs 57 protruding radially inward and facing each other diametrically at a lower edge 54 of a circumferential wall 55 of a hub part 56 of the handle 52 are arranged, said locking lugs 57 engaging behind an edge web 60, shown in particular in FIG. 9, formed at the upper edge 59 of the housing dome 53 in an axial joining process for mounting the handle 52 in the direction of the pivoting axle 37, a valve shaft, not shown in FIG. 8, being integrally connected to a bottom wall 58 of the handle 52. The handle 52 and the valve shaft therefore form an integral mounting unit in the discharge tap 51.
[0051] As in particular shown in FIG. 9, the housing dome 53 shows two housing stops 61, 62 facing each other diametrically and protruding over the upper edge 59 as well as ends 67, 72 of the edge web 60 facing each other axially via an edge web recess 66, said edge web 60 forming bolt stops.
[0052] As shown in FIG. 10, the handle 52 comprises two handle stops 69, 70 facing each other diametrically on an inner side 68 of the hub part 56, said handle stops 69, 70 enabling two stop positions when pivoting the handle 52 around the pivoting axle 37, the handle stops 69, 70 abutting against each of the housing stops 61, 62 shown in particularly in FIG. 9 in said stop positions.
[0053] As shown in FIG. 10, the shut-off position of the discharge tap 51 is defined via the stop of the handle stop 69 against the housing stop 61 and via the stop of the handle stop 70 against the housing stop 62. In the shut-off position of the discharge tap 51 shown in FIG. 10, there is a stop bolt 71 arranged at the handle 52, said stop bolt 71 being retained at a guiding web 33 (FIG. 7) in the circumferential wall 55 of the handle 52 corresponding to the stop bolt 17 of the locking device 38, namely in its unlocking position in which a stop base 73 of the stop bolt 71, which connects a bolt leg 74 shown in particular in FIG. 12 to an actuating leg 75, is arranged above the bottom wall 58 of the hub part 56 of the handle 52.
[0054] The stop bolt 71 can be displaced from the unlocking position shown in FIG. 10 to its locking position shown in FIGS. 11 and 12 for securing the shut-off position of the discharge tap 51, the bolt leg 74 being displaced downward to an interspace 76 formed between the housing dome 53 and the circumferential wall 55 of the hub part 56 of the handle 52.
[0055] The bolt leg 74 of the stop bolt 71 forms a securing device 77 together with the axial ends 67, 72 of the edge web 60 forming the bolt stops in this locking position as seen in FIG. 12, said securing device 77 effectively blocking the handle 52 from turning in both directions around the pivoting axle 37.
[0056] As a comparison between FIGS. 1 and 11 shows, the embodiment of the bolt stops interacting with the bolt leg 74 as axial ends 67, 72 of the edge overlap 60 enables a comparatively short embodiment of the bolt legs 74 so that the bolt leg 74 and the actuating leg 75 are realized having essentially the same length and do not protrude the hub part 56 or the lower edge 54 of the circumferential wall 55 of the hub part 56, respectively, in a downward direction in the case of the stop bolt 71.
[0057] As FIG. 11 shows, the housing dome 53 of the discharge tap 51 as well as the hub part 56 of the handle 52 are each provided with a display tab 78, 79 protruding radially downward which are in a relative arrangement partially covering each other and directly adjacent to each other in the shut-off position of the discharge tap 52. In doing so, the display tabs 78, 79 first of all serve for an easily identifiable display of the shut-off position of the discharge tap on the outside and in particular do not play a part in making the embodiment work.
[0058] Due to their comparatively massive embodiment, the display tabs 78, 79 still enable realizing an additional mechanical block which prevents the handle 52 from being able to be pivoted beyond the shut-off position shown in FIG. 11 in a counterclockwise direction using excessive force which could lead to damage of the housing stops 61, 62 and the handle stops 69, 70.
