Structure of sextant rotary disk

Abstract

The fastening elements 71 are first set through the rotary disk 1 to be then fixed to the retention plates 2 so that the stretching force induced by the fixing operation is acting upon the retention plates 2. This helps prevent the rotary disk 1 from being affected by the stretching force and thus deformed. Further, the fastening holes 22 are located adjacent to the retention grooves 21 so that they can directly and effectively apply forces to the support members 3 and due to the torque (distance) thereof with respect to the support members 3 being reduced, it is possible to effectively reduce the occurrence of deformation of the retention plates 2. To summarize, since the stretching force induced by fixing is born by the retention plates 2, the rotary disk 1 may have a lifespan that is greater than that of the retention plates 2 and with the arrangement that releasable engagement is formed between the retention plates 2 and the rotary disk 1, it only needs to replace an individual one of the retention plates 2 that has been deformed in the maintenance thereof. Further, due to the size of the retention plates 2 being reduced, the cost of maintenance can be greatly lowered down.

Claims

1. A sextant rotary disk structure, comprising: a rotary disk (1); a connection module (51, 52, 53, 54), wherein the connection module (51, 52, 53, 54) is set at a center of the rotary disk (1) and the connection module (51, 52, 53, 54) comprises an insertion element (51), the insertion element (51) having an end in which a conic insertion hole in a convergent configuration is formed; and a rotary shaft (6), wherein the rotary shaft (6) has an end insertable into the conic insertion hole to drive the rotary disk (1) to rotate, the end of the rotary shaft (6) comprising an insertion cone formed in a convergent configuration to correspond to the conic insertion hole so that the rotary shaft (6) and the connection module (51, 52, 53, 54) are allowed to separate from each other; wherein the connection module comprises an insulation element (51) arranged between the insertion element (51) and the rotary disk, a pressing element (53) arranged inside the insulation element (52), and a ring element (54) fit over the insulation element (52), the pressing element (53) having an end extending into the insulation element (52) to increase thickness and improve structural strength, the pressing element (53) comprising a working hole formed in a center thereof to receive extension of the securing element, the pressing element (53) receiving a plurality of the connection elements (13) that extend through the insulation element (52) to extend therethrough so that the connection elements (13) are fixable to the insertion element to secure the insulation element (52) in position, the ring element (54) having an end extended to partly cover the insulation element (52) to increase thickness and improve structural strength, the ring element (54) being mounted to the rotary disk (1) to allow the rotary shaft (6) to drive the rotary disk (1) to rotate.

2. The sextant rotary disk structure according to claim 1, wherein the conic insertion hole (511) comprises a guide slot (512) formed therein and the insertion cone comprises at least one guide rib (62) corresponding to the guide slot (512).

3. The sextant rotary disk structure according to claim 1, wherein the insertion element (51) receives a securing element (72) to extend through a center thereof, the securing element (72) being fixed to a center of the insertion cone (6).

4. The sextant rotary disk structure according to claim 1, wherein the insulation element (52) has an end in which at least one positioning groove is formed and the insertion element (51) has an end on which a positioning rib (513) that corresponds to the positioning groove (521) is formed.

5. The sextant rotary disk structure according to claim 1, wherein the insertion element (51) and the rotary shaft (6) are separable from each other by a dismounting element (8), the dismounting element (8) comprising a threaded section (81) and an idle section (82) extending from the threaded section (81), the idle section (82) extending through the insertion element (51) to be insertable into the rotary shaft (6) with the threaded section (81) threadingly mating the insertion element (51) for operation.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view showing a conventional support rotary disk module.

(2) FIG. 2 is a schematic view showing an embodiment of the present invention.

(3) FIG. 3A is an exploded view of the present invention.

(4) FIG. 3B is a perspective view showing a constraint section of the present invention.

(5) FIG. 3C is an exploded view of the present invention in a plan form.

(6) FIG. 3D is a schematic view showing the constraint section of the present invention in a plan form.

(7) FIG. 3E is a schematic view showing a constraint groove of the present invention in a plan form.

(8) FIG. 3F is an enlarged view illustrating a convergent arrangement according to the present invention.

(9) FIG. 4 is a schematic view illustrating a pressing arrangement according to the present invention.

(10) FIG. 5 is a schematic view illustrating a constraint arrangement according to the present invention.

(11) FIG. 6A is a schematic plan view showing a pressing element according to the present invention.

(12) FIG. 6B is a cross-sectional view taken along line A-A of FIG. 6A.

(13) FIG. 7A is a schematic plan view showing a rotary disk according to the present invention.

(14) FIG. 7B is a cross-sectional view taken along line B-B of FIG. 7A.

(15) FIG. 8 is a schematic view illustrating an assisted dismounting operation according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(16) The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

(17) Referring to FIGS. 2-8, the present invention comprises a rotary disk 1, a plurality of retention plates 2, a plurality of constraint elements 4, a plurality of support members 3, a plurality of fastening elements 71, a connection module 5, and a rotary shaft 6. The rotary disk 1 comprises a plurality of mounting slots 11 formed therein and distributed circumferentially. The retention plates 2 are respectively received in the mounting slots 11 and each has sides corresponding to side walls of the respective mounting slot 11 and forming at least one retention groove 21 and comprises at least one fastening hole 22 formed therein at a location adjacent to the retention groove 21. The support members 3 are respectively arranged between the mounting slots 11 and the retention grooves 21 in such a way as to project outside the rotary disk 1 and each has an end forming at least one constraint groove 31. The mounting slots 11 are each provided with at least one constraint element 4 at a location where the support member 3 is arranged. The constraint element 4 comprises a constraint section 41 projecting beyond a bottom of the mounting slot 11 so that engagement is made between the constraint section 41 and the constraint groove 31 to prevent the support members 3 from getting out of the retention groove 21. The fastening elements 71 extend through the rotary disk 1 and the fastening holes 22 of the retention plates 2 for fastening so that the retention plates 2 press against and thus fix the support members 3 in position.

(18) The connection module 5 is set at a center of the rotary disk 1. The connection module 5 comprises an insertion element 51, an insulation element 52 arranged between the insertion element 51 and the rotary disk 1, a pressing element 53 arranged in the insulation element 52, and a ring element 54 fit over the insulation element 52 and mounted to the rotary disk 1. The insertion element 51 has an end on which a positioning rib 513 is formed and an opposite end forming a conic insertion hole 511 in a tapering configuration. The conic insertion hole 511 comprises a guide slot 512 formed therein. The rotary shaft 6 has an end inserted into the conic insertion hole 511 and the end forms an insertion cone 61 that is in a tapering configuration corresponding to the conic insertion hole 511. The insertion cone 61 is provided with a guide rib 62 corresponding to the guide slot 512. The insulation element 52 has an end on which at least positioning groove 521 is formed to correspond to the positioning rib 513. The insulation element 52 and the insertion element 51 collectively receive a securing element 72 extending through centers thereof and the securing element 72 is secured to a center of the insertion cone 61. The arrangement of the single securing element 72 allows the size thereof to be increased and thickened to improve the structural strength thereof. The pressing element 53 has an end inserted into the insulation element 52 so as to increase the thickness and improve structural strength thereof and comprises a working hole 531 formed in a center thereof to receive extension of the securing element 72 therethrough. The pressing element 53 also comprises a plurality of connection elements 73 that extend through the insulation element 52 to extend therethrough so that the connection elements 73 are fixable to the insertion element 51 to secure the insulation element 52 in position. The ring element 54 has an end that is extended to partly cover the insulation element 52 so as to increase the thickness and improve structural strength thereof. Further, since the ring element 54 is mounted to the rotary disk 1, it is possible to use the rotary shaft 6 to drive the rotary disk 1 to rotate.

(19) Thus, in manufacturing the rotary disk 1, with the arrangement that mating engagement between the mounting slots 11 and the retention plates 2 allows the bottom of the mounting slots 11 to be increased in respect of the thickness thereof in order to enhance the structural strength of the rotary disk 1 and reduce the potential risk of deformation. Further, the combination of the retention plates 2, the mounting slots 11, and the fastening elements 71 allows for mounting of the retention plates 2 in the mounting slots 11 to be achieved by aligning the constraint grooves 31 with the constraint sections 41 and positioning the support members 3 against side walls of the mounting slots 11 so that the retention grooves 21 can automatically mate the support members 3 for subsequent fastening the retention plates 2 with the fastening elements 71 so that the installation of the present invention is easy and simple. Further, the arrangement that the retention grooves 21 are formed at the sides of the retention plates 2 helps reduce the size of the retention plates 2.

(20) The fastening elements 71 are first set through the rotary disk 1 to be then fixed to the retention plates 2 so that the stretching force induced by the fixing operation is acting upon the retention plates 2. This helps prevent the rotary disk 1 from being affected by the stretching force and thus deformed. Further, the fastening holes 22 are located adjacent to the retention grooves 21 so that they can directly and effectively apply forces to the support members 3 and due to the torque (distance) thereof with respect to the support members 3 being reduced, it is possible to effectively reduce the occurrence of deformation of the retention plates 2. To summarize, since the stretching force induced by fixing is born by the retention plates 2, the rotary disk 1 may has a lifespan that is greater than that of the retention plates 2 and with the arrangement that releasable engagement is formed between the retention plates 2 and the rotary disk 1, it only needs to replace an individual one of the retention plates 2 that has been deformed in the maintenance thereof. Further, due to the size of the retention plates 2 being reduced, the cost of maintenance can be greatly lowered down.

(21) During a use, the insertion element 51 and the rotary shaft 6 can effectively prevent invasion of plasma or corrosive gas by means of the tight engagement between the conic insertion hole 511 and the insertion cone 61. Further, due to the convergent configurations, separation of the rotary shaft 6 and the connection module 5 from each other is made easy thereby effectively reducing the occurrence of the connection module 5 and the rotary shaft 6 being stuck to each other.

(22) Further, a dismounting element 8 is additionally provided to assist separating the insertion element 51 and the rotary shaft 6 from each other. The dismounting element 8 comprises a threaded section 81 and an idle section 82 extending from the threaded section 81. To dismount, the dismounting element 8 is inserted into the insertion element 51 and is rotated to have the threaded section 81 engaging the insertion element 51, while the idle section 82 is moved forward with the rotation to get into and abut the rotary shaft 6. When the idle section 82 abuts the rotary shaft 6 and makes idle rotation with the subsequent rotation of the dismounting element 8, the threaded section 81, due to the rotation, applies a pulling force on the insertion element 51 that makes the insertion element 51 easily separate from the rotary shaft 6.

(23) Thus, the key factors that the structure of the present invention improves the drawbacks of the prior art are as follows:

(24) (1) The combination of the rotary disk 1, the retention plates 2, and the fastening elements 71 allows the present invention to reduce deformation and extend the service life thereof and also lower down the maintenance cost.

(25) (2) The combination of the insertion element 51 and the rotary shaft 6 allows the present invention to be easily dismounted after use.

(26) It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

(27) While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.