Adjustable clutch mechanism and drawer type switch equipped with same

Abstract

The utility model relates to the technical field of low-voltage electric appliances, in particular to an adjustable clutch mechanism and a drawer type switch equipped with the clutch mechanism. The adjustable clutch mechanism comprises a linkage piece, a clutch elastic piece, a clutch sliding piece and an adjusting assembly, a containing cavity is formed in the linkage piece, and the adjusting assembly is arranged at an opening of the containing cavity; the clutch sliding piece slides in the containing cavity relative to the sliding groove and outwards forms an output end for outputting force outwards from the sliding groove. The clutch elastic piece is arranged in the containing cavity, the two ends of the clutch elastic piece abut against the position between the clutch elastic piece and the adjusting assembly, and the compression amount of the clutch elastic piece is adjusted through the matching depth of the adjusting assembly and the containing cavity so that the outward output force of the output end of the clutch sliding piece can be adjusted. The compression stroke of the clutch elastic piece is adjusted through the screw, the higher the compression stroke is, the larger the torque of the motor for driving the clutch mechanism through the transmission gear is, switch bodies of different specifications and weights can be rocked in and out, and therefore the universality of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to an adjustable clutch mechanism and a drawer-type switch configured with the clutch mechanism. Background Art

[0002] Drawer-type switches are widely used in low-voltage systems due to their isolation function, convenient maintenance, and quick replacement. As large-capacity switch components, once a circuit fault occurs, it will pose a threat to the personal safety of operators. Therefore, more and more users choose to configure a remote operation device that can remotely control the switch body to be rocked in and out of the drawer seat. With the continuous increase in the capacity of drawer-type switches, the driving force required for pushing or pulling operations is getting larger and larger. To improve the versatility of the remote operation device for switch bodies of different specifications, this patent proposes an adjustable clutch mechanism, and users can adjust the magnitude of the output torque by themselves to adapt to the different torques required by switch bodies of different specifications. Summary of the Utility Model

[0003] The purpose of the utility model is to address the problems in the background art and propose an adjustable clutch mechanism and a drawer-type switch configured with the clutch mechanism. The mechanism adjusts the compression stroke of the clutch elastic member through an adjustment component. The higher the compression stroke, the greater the torque of the motor driving the clutch mechanism through the transmission gear. This remote operation device can then rock in and out switch bodies of different specifications and weights, thereby greatly improving the versatility of the device.

[0004] The technical solution of the utility model is an adjustable clutch mechanism, which includes a linkage member, a clutch elastic member, a clutch sliding member, and an adjustment component;

[0005] A receiving cavity is provided on the linkage member, and the adjustment component is arranged at the opening of the receiving cavity;

[0006] A pair of sliding grooves are provided on the linkage member, and the clutch sliding member slides in the receiving cavity relative to the sliding grooves and forms an output end that outputs force to the outside from the sliding grooves;

[0007] The clutch elastic member is arranged in the receiving cavity and abuts against both ends between the clutch elastic member and the adjustment component respectively. The compression amount of the clutch elastic member is adjusted by the matching depth between the adjustment component and the receiving cavity, and further the output force of the output end of the clutch sliding member to the outside is adjusted.

[0008] In an optional embodiment, the clutch sliding member includes a sliding cylinder body and a mating rod; the sliding cylinder body is slidably arranged in the receiving cavity, and the mating rod is inserted through the sliding cylinder body and both ends extend out of the sliding grooves.

[0009] In an optional embodiment, a plurality of mating heads are sleeved on the end of the mating rod, and the mating heads and the mating rod extend out of the sliding grooves together.

[0010] In an alternative embodiment, the mating head is a roller.

[0011] In an alternative embodiment, the clutch elastic member is a cylindrical spring.

[0012] A drawer-type switch includes a drawer base, a switch body, and an electric driving device. The electric driving device is installed outside the drawer base and drives the switch body to move relative to the drawer base. It further includes the above adjustable clutch mechanism. The clutch mechanism is arranged inside the electric driving device and is connected to the drawer base through the transmission component of the electric driving device, driving the switch body to move relative to the drawer base.

[0013] In an alternative embodiment, the transmission component includes a transmission gear and a transmission shaft. One end of the transmission shaft is connected to the drawer base, and the other end is connected to the transmission gear. The other end of the transmission gear is engaged with the clutch sliding member.

[0014] In an alternative embodiment, the transmission gear is provided with a mating groove, and it is engaged with the clutch sliding member through the mating groove.

[0015] In an alternative embodiment, the mating groove is arranged with an expanded angle, and the angle of the expanded angle is from 0° to 180°.

[0016] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0017] The present utility model adjusts the compression stroke of the clutch elastic member through screws. The higher the compression stroke, the greater the torque of the motor driving the clutch mechanism through the transmission gear. The present remote operation device can thus realize the rocking in and out of switch bodies of different specifications and weights, thereby greatly improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation position of the clutch mechanism in the embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the clutch mechanism in the embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the sliding cylinder in the embodiment of the present utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the clutch mechanism in the embodiment of the present utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the transmission component in the embodiment of the present utility model;

[0023] Figure 6 It is a schematic diagram of the installation structure of the linkage member and the transmission component in the embodiment of the present utility model.

[0024] Reference numerals: 1, drawer base; 2, clutch mechanism; 21, linkage member; 211, sliding groove; 212, receiving cavity; 22, clutch elastic member; 23, clutch sliding member; 231, sliding cylinder; 232, mating rod; 233, mating head; 24, adjusting assembly; 3, switch body; 4, electric drive device; 41, transmission assembly; 411, transmission gear; 4111, mating groove; 412, transmission shaft; 42, motor. Detailed implementation manners

[0025] The following will describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings. However, the applicant's description of the embodiments is not a limitation on the technical solutions. Any change in form rather than in essence based on the concept of the present utility model should be regarded as the protection scope of the present utility model.

[0026] In the following descriptions, all concepts related to the directionality or orientation, such as up, down, left, right, front, and back, are based on the positions shown in the corresponding accompanying drawings. It is only for the convenience of describing the technical solutions provided by the present utility model in conjunction with the accompanying drawings and simplifying the description. Therefore, it cannot be understood as a special limitation on the technical solutions provided by the present utility model.

[0027] The present utility model provides a drawer-type switch, as Figure 1 shown, including a drawer base 1, a switch body 3, and an electric drive device 4. The switch body 3 can move within the drawer base 1, thereby realizing the connection or separation between the switch body 3 and the drawer base 1. The electric drive device 4 is installed outside the drawer base 1. The described outside means that the electric drive device 4 is located outside the shell of the drawer base 1, rather than integrated inside the drawer base 1. In conjunction with the accompanying drawings, specifically, the electric drive device 4 is installed outside the front of the drawer base 1, that is, in the direction facing the operator. The electric drive device 4 is used to drive the transmission system inside the drawer base 1 to act, and then drive the switch body 3 to move relative to the drawer base 1 by the transmission system. The electric drive device 4 is a separate device, and it can realize the switching between the fixed state and the detachable state with the drawer base 1. Usually, the electric drive device 4 is connected to a remote control handle, and the remote control handle can control the operation of the electric drive device 4. The electric drive device 4 also needs to be powered on, for example, by connecting a plug. When the electric drive device 4 is in a detachable state with the drawer base 1, it does not affect the normal operation of the drawer-type switch. It only requires manual operation when driving the switch body 3 to move within the drawer base 1.

[0028] In order to achieve the output of different torques, an adjustable clutch mechanism is provided on the electric drive device 4. The clutch mechanism 2 is provided on the electric drive device 4 and is connected to the drawer base 1 through the transmission assembly 41 of the electric drive device 4 to drive the switch body 3 to move relative to the drawer base 1.

[0029] As Figures 2-3 shown, specifically, the clutch mechanism 2 includes a linkage member 21, a clutch elastic member 22, a clutch sliding member 23, and an adjustment assembly 24. The linkage member 21 is provided with a receiving cavity 212. The adjustment assembly 24 is arranged at the opening of the receiving cavity 212. The clutch sliding member 23 is slidably arranged in the receiving cavity 212. The clutch elastic member 22 is arranged in the receiving cavity and abuts against the clutch elastic member 22 and the adjustment assembly 24 at both ends respectively. By adjusting the matching depth between the adjustment assembly 24 and the receiving cavity 212, the compression stroke of the clutch elastic member 22 is adjusted, and then the output force of the clutch sliding member 23 outward is adjusted, that is, the clutch elastic member 22 provides a driving force for the clutch sliding member 23 to engage with the transmission assembly 41.

[0030] Specifically, a pair of sliding grooves 211 are arranged on the linkage member 21. The clutch sliding member 23 can slide relative to the sliding grooves 211 in the receiving cavity 212. The positions of the pair of sliding grooves 211 are opposite and correspond to each other in the length direction of the linkage member 21.

[0031] The clutch sliding member 23 includes a sliding cylinder body 231, a mating rod 232, and mating heads 233. The sliding cylinder body 231 is slidably arranged in the receiving cavity 212. The mating rod 232 is inserted through the sliding cylinder body 231 and both ends extend through the sliding grooves 211. The mating heads 233 are sleeved on both ends of the mating rod 232, and the quantity can be set according to actual requirements. In this embodiment, two are arranged at each end. The clutch sliding member 23 is installed in this way: the sliding cylinder body 231 is placed into the receiving cavity 212, then the mating rod 232 radially passes through the corresponding holes on the sliding cylinder body 231, and then both ends of the mating rod 232 extend through a pair of sliding grooves 211, and finally the mating heads 233 are installed at both ends of the mating rod 232.

[0032] Specifically, as Figure 5 shown, the transmission assembly 41 includes a transmission gear 411 and a transmission shaft 412. One end of the transmission shaft 412 is connected to the drawer seat 1, and the other end is connected to the transmission gear 411. The other end of the transmission gear 411 is matched with the clutch sliding member 23. A mating groove 4111 is arranged on the transmission gear 411, and it is matched with the clutch sliding member 23 through the mating groove 4111.

[0033] Since the clutch sliding member 23 can slide in the sliding groove 211, the clutch sliding member 23 has two positions, namely the first position and the second position. When the clutch sliding member 23 is in the first position, the clutch sliding member 23 is clamped with the transmission assembly 41. When the clutch sliding member 23 is in the second position, the clutch sliding member 23 is separated from the transmission assembly 41. At this time, the clutch sliding member 23 is on the right side in the figure. The mating head 233 on the clutch sliding member 23 slides in a pair of sliding grooves 211 under the traction of the mating rod 232 and is embedded in the mating groove 4111, so as to realize the clamping of the clutch sliding member 23 and the transmission gear 411, and the two move synchronously after being clamped. At the same time, since the mating rod 232 is clamped into a pair of sliding grooves 211, the linkage member 21 rotates together with the clutch sliding member 23 and drives the transmission shaft 412 to rotate.

[0034] As Figure 6 shown, the mating groove 4111 is arranged with an expanding angle. The angle of this expanding angle is from 0° to 180°, preferably from 0° to 120°, and more preferably 40°, which is convenient for the two to disengage automatically in case of jamming. Similarly, the mating head 233 is preferably a roller, which is also convenient for the two to disengage. This setting makes it possible that even if jamming occurs in the transmission system of the drawer seat, that is, at this time, the motor 42 of the electric driving device 4 will have a stuck rotation situation, the motor 42 will not be damaged. Specifically, when the transmission shaft 412 is jammed due to the transmission chain and the transmission shaft 412 itself cannot rotate, resulting in the linkage member 21 unable to rotate, and then the clutch sliding member 23 also unable to rotate, so that the mating head 233 on the clutch sliding member cannot rotate, and further the mating head 233 generates a force F in the direction shown in the figure on the mating groove 4111. This force F has a component force F2 in the axial direction and a component force F1 in the rotational direction. The existence of the component force F2 makes the driving force of the motor 42 converted into the separation force between the clutch sliding member 23 and the transmission gear 411. This separation force overcomes the clutch elastic member 22, so that the above-mentioned clutch sliding member 23 and the transmission gear 411 are disengaged. After disengagement, the transmission gear 411 can rotate freely, so that the motor 42 will not be stuck and burned. The user can tighten the adjusting assembly 24 to overcome the clutch elastic member 22 and continuously deepen the fit with the receiving cavity 212. At this time, the F2 transmitted by the clutch elastic member 22 to the clutch sliding member 23 will increase, so that the separation force between the clutch sliding member 23 and the transmission gear 411 increases and it becomes difficult to disengage, that is, the linkage member 21 is allowed to bear a greater torque and synchronously output it to the transmission shaft 412, so as to realize the adjustability of the clutch mechanism.

[0035] The adjusting assembly 24 adopts an adjusting screw or other structures, and only needs to meet the compression amount of the adjusting spring.

[0036] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those skilled in the relevant technical field.

Claims

1. An adjustable clutch mechanism, characterized in that: It comprises a linkage member (21), a clutch elastic member (22), a clutch sliding member (23) and an adjustment component (24); The linkage member (21) is provided with a receiving cavity (212), and the adjustment component (24) is arranged at the opening of the receiving cavity (212); A slide groove (211) is provided on the linkage member (21), and the clutch sliding member (23) slides relative to the slide groove (211) in the accommodating cavity (212) and protrudes outward from the slide groove (211) to form an output end for outputting force to the outside; The clutch elastic member (22) is arranged in the accommodating cavity and its two ends are respectively abutted between the clutch elastic member (22) and the adjusting assembly (24). The compression stroke of the clutch elastic member (22) is adjusted by adjusting the matching depth between the adjusting assembly (24) and the accommodating cavity (212), thereby adjusting the outward output force of the output end of the clutch sliding member (23).

2. The adjustable clutch mechanism according to claim 1, characterized in that: The clutch sliding member (23) comprises a sliding column (231) and a matching rod (232); the sliding column (231) is slidably arranged in the accommodating cavity (212), and the matching rod (232) is penetrated on the sliding column (231) and has two ends extending out of the sliding groove (211).

3. The adjustable clutch mechanism according to claim 2, characterized in that: A plurality of matching heads (233) are sleeved on the end of the matching rod (232), and the matching heads (233) and the matching rod (232) extend out of the slide groove (211) together.

4. The adjustable clutch mechanism according to claim 3, characterized in that: The mating head (233) is a roller.

5. The adjustable clutch mechanism according to claim 1, characterized in that: The clutch elastic member (22) is a cylindrical spring.

6. A drawer-type switch, comprising a drawer seat (1), a switch body (3) and an electric drive device (4), wherein the electric drive device (4) is mounted on the outside of the drawer seat (1) and drives the switch body (3) to move relative to the drawer seat (1), characterized in that: It also includes an adjustable clutch mechanism as described in any one of claims 1 to 5, wherein the clutch mechanism (2) is arranged in the electric drive device (4), connected to the drawer seat (1) through the transmission component (41) of the electric drive device (4), and drives the switch body (3) to move relative to the drawer seat (1).

7. The drawer-type switch according to claim 6, characterized in that: The transmission assembly (41) comprises a transmission gear (411) and a transmission shaft (412). One end of the transmission shaft (412) is connected to the drawer seat (1), and the other end is connected to the transmission gear (411). The other end of the transmission gear (411) is matched with the clutch sliding member (23).

8. The drawer-type switch according to claim 6, characterized in that: The transmission gear (411) is provided with a matching groove (4111) and matches with the clutch sliding member (23) through the matching groove (4111).

9. The drawer-type switch according to claim 8, characterized in that: The matching groove (4111) is arranged at an expansion angle, and the expansion angle is 0° to 180°.

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