Electric retracting hose&cord reel

Abstract

The present invention relates to an electric retracting hose & cord reel. A reel body is connected with a driving motor through a driven gear and a driving gear. The driving gear is provided with an arresting disc and a locking device corresponding to the arresting disc. The driving motor and an electromagnet in the locking device are connected with a control plate. The control plate is connected with a locking switch and a motor on-off switch on an arresting block. The locking switch controls the electromagnet through the control plate to act. The motor on-off switch controls the driving motor through the control plate to be started and stopped. The locking device is arranged on the reel body, and a hose can be controlled through the locking device to continue to be pulled out in a locking position; and the locking device and the motor are remotely controlled wirelessly through the locking switch and the motor on-off switch so as to achieve that the pull-out and the retraction of the hose or cord of the electric retracting hose & cord reel are automatically controlled. Because an overload protection device is arranged on the control plate, it can ensure that when external resistance and sudden condition are encountered, the motor is emergently stopped and the reel body can stop rotating at any time, thereby performing a safety protection effect on an operator and a working environment.

Claims

1. An electric retracting hose & cord reel, comprising a reel body (2) used for hose & cord reel, an arresting block (4) used for retracting and arresting the hose & cord reel, and a locking device (7) used for locking the rotation of the reel body, wherein a hose or cord (9) is coiled on the reel body (2); the arresting block (4) is mounted on the front end of the hose or cord (9); the electric retracting hose & cord reel is characterized in that: the reel body (2) is connected with a driving motor (3) through a driven gear (5) and a driving gear (6) for electric retraction of the hose or cord (9); the driving gear (6) is provided with an arresting disc (10) and a locking device (7) corresponding to the arresting disc; the driving motor (3) and an electromagnet (11) in the locking device (7) are connected with a control plate (8); the control plate (8) is connected with a locking switch (15) and a motor on-off switch (16) on the arresting block (4); the locking switch (15) controls the electromagnet (11) through the control plate (8) to act; and the motor on-off switch (16) controls the driving motor (3) through the control plate (8) to be started and stopped.

2. The electric retracting hose & cord reel according to claim 1, characterized in that: the locking switch (15) and the motor on-off switch (16) are connected with the control plate (8) in wireless remote control.

3. The electric retracting hose & cord reel according to claim 1, characterized in that: the driving motor (3) is connected with an overload protection device; and the overload protection device is connected with the control plate used for emergently stopping the reel body when external resistance and sudden condition are encountered.

4. The electric retracting hose & cord reel according to claim 1, characterized in that: the locking device (7) has a locking head (12); the upper part of the locking head (12) is provided with a rotating axis (14); the middle part is connected with a reset spring (13); and the lower part is connected with the electromagnet (11).

5. The electric retracting hose & cord reel according to claim 4, characterized in that: when the hose or cord is pulled, the electromagnet (11) is in electrified state; the locking head (12) is disconnected from the arresting disc (10), and the driving motor (3) is in rotation stopping state.

6. The electric retracting hose & cord reel according to claim 4, characterized in that: when the reel body is required to be locked after the hose or cord is pulled, the locking switch (15) is pulled to a position so that the electromagnet (11) is in de-energized state, and the arresting disc (10) is locked by the locking head (12).

7. The electric retracting hose & cord reel according to claim 6, characterized in that: when the hose or cord is required to be retracted, the locking switch (15) is pulled to a position so that the electromagnet (11) is in electrified state and the locking head (12) is disconnected from the arresting disc (10); and after the motor on-off switch (16) is pressed, the driving motor (3) rotates.

8. The electric retracting hose & cord reel according to claim 2, characterized in that: the locking device (7) has a locking head (12); the upper part of the locking head (12) is provided with a rotating axis (14); the middle part is connected with a reset spring (13); and the lower part is connected with the electromagnet (11).

9. The electric retracting hose & cord reel according to claim 8, characterized in that: when the hose or cord is pulled, the electromagnet (11) is in electrified state; the locking head (12) is disconnected from the arresting disc (10); and the driving motor (3) is in rotation stopping state.

10. The electric retracting hose & cord reel according to claim 8, characterized in that: when the reel body is required to be locked after the hose or cord is pulled, the locking switch (15) is pulled to a position so that the electromagnet (11) is in de-energized state, and the arresting disc (10) is locked by the locking head (12).

11. The electric retracting hose & cord reel according to claim 10, characterized in that: when the hose or cord is required to be retracted, the locking switch (15) is pulled to a position so that the electromagnet (11) is in electrified state and the locking head (12) is disconnected from the arresting disc (10); and after the motor on-off switch (16) is pressed, the driving motor (3) rotates.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a system block diagram of an electric retracting hose & cord reel of the present invention;

[0018] FIG. 2 is a main view of a structure of an electric retracting hose & cord reel of the present invention;

[0019] FIG. 3 is a top view of a structure of an electric retracting hose & cord reel of the present invention;

[0020] FIG. 4 is a structural diagram of a locking device of an electric retracting hose & cord reel of the present invention; and

[0021] FIG. 5 is an enlarged view of a locking device.

DETAILED DESCRIPTION OF THE PRESENT INVENTION

[0022] The present invention will be further described below with combination of the appended drawings and specific embodiments.

[0023] As shown in FIG. 1 to FIG. 5, an electric retracting hose & cord reel comprises a supporting frame 1, a reel body 2, an arresting block 4, a locking device 7, a control plate 8, a driving motor 3, a driving gear 6, a driven gear 5, an arresting disc 10, a locking switch 15, a motor on-off switch 16, etc.

[0024] The reel body 2 is placed on the supporting frame 1. A hose or cord 9 is coiled on the reel body 2. The arresting block 4 is mounted on the front part of the hose or cord 9 so that the hose or cord 9 is retracted to the arresting block 4 to stop due to contact with an arm of the supporting frame. The driven gear 5 is mounted coaxially on one side of the reel body 2. The driven gear 5 is coaxially provided with the arresting disc 10. The driven gear 5 is engaged with the driving gear 6. The driving gear 6 is connected with the output end of the driving motor 3. The locking device 7 is mounted on the supporting frame 1 corresponding to the arresting disc 10. The locking device 7 is used for locking the rotation of the reel body 2.

[0025] As shown in FIG. 4 and FIG. 5, the locking device 7 has a locking head 12; the upper part of the locking head 12 is provided with a rotating axis 14; the middle part is connected with a reset spring 13; and the lower part is connected with the electromagnet 11 The locking head 12 is a pawl. The arresting disc 10 is a ratchet wheel.

[0026] As shown in FIG. 1, the driving motor 3 and the electromagnet 11 in the locking device 7 are connected with the control plate 8; the control plate 8 is connected with the locking switch 15 and the motor on-off switch 16 on the arresting block 4; the locking switch 15 controls the electromagnet 11 through the control plate 8 to act; and the motor on-off switch 16 controls the driving motor 3 through the control plate 7 to be started and stopped, wherein the locking switch 15 and the motor on-off switch 16 are connected with the control plate 8 in wireless remote control. The driving motor 3 is connected with an overload protection device. The overload protection device is connected with the control plate used for emergently stopping the reel body when external resistance and sudden condition are encountered.

[0027] The control plate controls the output of a two-way relay, wherein one way controls the motor to be started and stopped, and the other way controls an electromagnetic valve. When the electromagnetic valve is electrified, the motor immediately stops working (is locked). When the motor is working, the switch of the electromagnetic valve fails. When the reel body encounters resistance during rotation, the overload protection device is disconnected and the motor stops rotating. When the hose or cord receives a limit level, similarly, the motor stops rotating. Judging from current, when the current is greater than a certain value, output is stopped.

[0028] When the hose or cord is pulled, the electromagnet 11 is in electrified state; the locking head 12 is disconnected from the arresting disc 10; and the driving motor 3 is in rotation stopping state.

[0029] When the reel body 2 is required to be locked after the hose or cord is pulled, the locking switch 15 is pulled to a position so that the electromagnet 11 is in de-energized state, and the arresting disc 10 is locked by the locking head 12.

[0030] When the hose or cord is required to be retracted, the locking switch 15 is pulled to a position so that the electromagnet 11 is in electrified state and the locking head 12 is disconnected from the arresting disc 10; and after the motor on-off switch 16 is pressed, the driving motor 3 rotates.