CN215644162U - Low-voltage switch handle - Google Patents

Abstract

The utility model relates to a low-voltage switch handle, which comprises a connecting panel and a handle, wherein the connecting panel is fixedly arranged, the handle is inserted into the connecting panel and forms rotatable mechanical connection with the connecting panel, the low-voltage switch handle also comprises a limiting ring used for limiting the handle to be separated from the connecting panel, and the limiting ring is fixedly connected with the handle through threads, so that the low-voltage switch handle is more convenient to install, the structural strength is greatly improved, and the problem that the connecting structure of the limiting ring and the handle insertion end is damaged after long-time use is effectively solved. In addition, the low-voltage switch handle further comprises a coupler for coupling the handle and the switch switching device of the low-voltage switch, the coupler comprises a first coupling part coupled with the switch switching device of the low-voltage switch and a second coupling part coupled with the handle, and the first coupling part and the second coupling part can be movably connected, so that the position error of the low-voltage switch during installation can be compensated through the movable connection of the second coupling part.

Description

Low-voltage switch handle

Technical Field

The utility model relates to the field of switch equipment, in particular to a low-voltage switch handle applied to a cabinet door of a power distribution system.

Background

The handle of the low-voltage switch (such as a fuse combined electrical appliance, an isolating switch, a double-throw switch and the like) is usually fixedly installed on a door panel of a power distribution cabinet and connected with a switch switching device of the low-voltage switch, and the state switching of the low-voltage switch is realized by pulling the handle of the low-voltage switch. An existing low-voltage switch handle is shown in fig. 1-2 and comprises a connecting panel 1 and a handle 2, wherein the connecting panel 1 is fixedly arranged on a door panel of a power distribution cabinet, and an insertion end 21 of the handle 2 extends into a through hole of the connecting panel 1 to form rotatable mechanical connection with the connecting panel 1. In order to prevent the handle 2 from being separated from the connecting panel 1, referring to fig. 3-4, a limiting ring 3 is fixed at the periphery of the inserting end 21 in a cutting manner to form an expanding diameter part, and the limiting ring 3 abuts against a limiting step 11 in the connecting panel 1 to realize the separation-proof limiting of the handle 2. The limiting ring 3 and the insertion end 21 are generally fixed in a clamping manner in the prior art at present, an L-shaped bent clamping portion 31 is arranged on the limiting ring 3, a clamping groove 212 is arranged on the insertion end 21, and when the limiting ring 3 is assembled in place, force is applied to the bent clamping portion 31 to force the limiting ring to be bent and clamped into the clamping groove 212, so that the limiting ring 3 and the insertion end 21 are fixedly connected. However, the connection mode of the insertion end 21 of the limit ring 3 and the handle 2 is complex in assembly and not high enough in structural strength, and particularly under the condition that the installation position of the low-voltage switch handle is high, a user often pulls the handle 2 outwards when pulling the low-voltage switch handle, so that the connection structure of the insertion end 21 of the limit ring 3 and the handle 2 is damaged after long-time use, and finally the problem that the handle 2 is separated from the connection structure, and the low-voltage switch handle is damaged and cannot be used continuously is caused.

In addition, the low-voltage switch handle is fixed on the cabinet door, and in the installation process of the low-voltage switch, the low-voltage switch is lifted and fixed on a wall surface or in a cabinet body matched with the position of the low-voltage switch handle.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a low-voltage switch handle with an optimized structure aiming at the problems.

The utility model is realized by adopting the following technical scheme:

the utility model provides a low-voltage switch handle which comprises a connecting panel and a handle, wherein the connecting panel is fixedly arranged, the handle is inserted into the connecting panel and forms rotatable mechanical connection with the connecting panel, the low-voltage switch handle also comprises a limiting ring used for limiting the handle to be separated from the connecting panel, and the limiting ring is fixedly connected with the handle through threads.

Preferably, the connection panel is provided with a limiting step hole, the handle comprises an insertion end inserted into the limiting step hole, and the limiting ring is sleeved and fixed on the periphery of the insertion end to form an expanded diameter part and abuts against the limiting step hole to limit the handle to be removed.

Preferably, the insertion end includes a first tooth portion extending toward the periphery thereof, the first tooth portion is provided with a slot, the limit ring is of an annular structure and includes a second tooth portion extending toward the center of the circle thereof, the insertion end is further provided with a threaded hole, the limit ring is provided with an ear portion extending toward the center of the circle thereof, the ear portion is provided with a through hole matched with the threaded hole, the limit ring is sleeved into the insertion end in a staggered manner with the first tooth portion and the second tooth portion, the limit ring is rotated to enable the second tooth portion to be clamped into the slot, so that the through hole on the ear portion is overlapped with the threaded hole, and then a screw is screwed in to lock the limit ring and the insertion end, thereby fixedly connecting the limit ring and the handle.

Preferably, the low voltage switch handle further comprises a coupler for coupling the handle with the switch switching means of the low voltage switch, the coupler comprising a first coupling part coupled with the switch switching means of the low voltage switch and a second coupling part coupled with the handle, the first coupling part and the second coupling part being movably connected.

Preferably, be equipped with first slide rail on the first coupling portion, be equipped with the second slide rail on the second coupling portion, the trend of first slide rail and second slide rail is the cross and intersects, the coupler still includes an intermediate junction spare, intermediate junction spare one end with first slide rail sliding fit connects, the other end with second slide rail sliding fit connects, thereby realizes the swing joint of first coupling portion and second coupling portion.

Preferably, the second coupling part has a hollow inner cavity, the second slide rail is disposed in the hollow inner cavity, and the intermediate coupling part is disposed in the hollow inner cavity and connected to the second slide rail in a sliding fit manner.

Preferably, the low voltage switch handle further comprises a catch plate slidably connected to the connection panel, the connection panel being restrained from disengaging from the coupler by the catch plate abutting the coupler.

Preferably, the low-voltage switch handle further comprises an elastic reset member acting on the clamping plate, the clamping plate is provided with a central hole for the second coupling part to pass through, an L-shaped flange is arranged on one side of the central hole, one end of the second coupling part is provided with a pointed cone, when the second coupling part passes through the central hole, the pointed cone props against the flange and pushes the clamping plate to slide, and after the second coupling part passes over the flange, the clamping plate slides and resets under the action of the elastic reset member so as to prop against the second coupling part to limit the connection panel and the coupler to be separated.

Preferably, still be equipped with the lockhole on the cardboard, the handle still includes padlock piece, lever and locking lever, padlock piece sliding connection in the padlock groove that the handle was equipped with, lever rotatable coupling in the padlock groove, lever one end with the locking lever joint is fixed, the other end with padlock piece is fixed, thereby follows padlock groove pulls out during the padlock piece, through the lever drives the locking lever stretches into realize in the lockhole the rotation of handle is locked.

Preferably, the padlock block is provided with a hanging ring for hanging a padlock, and the padlock is hung in the hanging ring to limit the padlock block from pressing downwards into the padlock groove.

The utility model has the following beneficial effects: the utility model fixes the limiting ring and the handle by using a threaded connection mode, not only is the installation more convenient, but also the structural strength is greatly improved, and the problem that the connecting structure of the limiting ring and the insertion end of the handle is damaged when the limiting ring is used for a long time is effectively avoided. In addition, the first connecting part and the second connecting part of the coupler are movably connected, and if the position of the low-voltage switch is inaccurate during installation, the position error of the low-voltage switch can be compensated by the movable connection of the second connecting part, so that the low-voltage switch is not required to be frequently disassembled and assembled for position adjustment.

Drawings

FIG. 1 is a perspective view of a prior art low voltage switch handle;

FIG. 2 is an exploded view of a connection panel and handle of a prior art low-voltage switch handle;

FIG. 3 is an exploded view of a prior art connection panel, handle and stop collar for a low voltage switch handle;

FIG. 4 is a schematic view of a prior art clamping attachment of a handle and a stop collar;

FIG. 5 is an exploded view of the structure of the low voltage switch handle in the embodiment;

FIG. 6 is a perspective view of the low voltage switch handle of the embodiment (with the coupler removed);

FIG. 7 is a perspective view of the handle in the embodiment;

FIG. 8 is a perspective view of an embodiment of a stop collar;

FIG. 9 is a schematic view of an embodiment in which the stop collar and handle are secured by a threaded connection of a screw;

FIG. 10 is a perspective view of the coupler of the embodiment;

FIG. 11 is an exploded view of the coupling of the embodiment;

FIG. 12 is an exploded view of a second coupling portion of the coupling of the embodiment;

FIG. 13 is a perspective view of the card in the embodiment;

FIG. 14 is a schematic view of the embodiment with the card slidably attached to the connection panel;

FIG. 15 is an exploded view of the padlock block, lever and locking bar arrangement of the handle of the embodiment;

fig. 16 is a cross-sectional view of the low voltage switch handle (with the coupler removed) in an embodiment.

Detailed Description

To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The utility model will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 5 to 6, as a preferred embodiment of the present invention, a low voltage switch handle is provided, which includes a connection panel 1, a handle 2, a limiting ring 3, and the like, as shown in fig. 7 to 9, the handle 2 includes an insertion end 21 rotatably inserted into the connection panel 1, the insertion end 21 includes first tooth portions 23 extending toward the outer periphery thereof and arranged at four corners, and the first tooth portions 23 are provided with slots 22; the limiting ring 3 is an annular structure, the thickness of the limiting ring is approximately equal to the groove width of the clamping groove 22, and the limiting ring 3 comprises second tooth parts 31 which extend towards the center of the limiting ring and are arranged at four corners; the insertion end 21 is further provided with a threaded hole 24, and correspondingly, an ear part 32 extending towards the circle center of the limiting ring 3 is arranged on the limiting ring, and a through hole is arranged on the ear part 32. During assembly, the limiting ring 3 is sleeved into the insertion end 21 in a mode that the first tooth portion 23 and the second tooth portion 31 are staggered, then the limiting ring 3 is rotated to enable the second tooth portion 31 to be clamped into the clamping groove 22, the through holes in the lug portions 32 are overlapped with the threaded holes 24, then screws are screwed in to lock the limiting ring 3 and the insertion end 21, and therefore the limiting ring 3 is fixedly connected with the handle 2.

The spacing ring 3 and the handle 2 are fixed to this embodiment mode that utilizes threaded connection, and not only the installation is comparatively convenient, and structural strength has obtained very big promotion moreover, has avoided effectively that long-time use is down spacing ring 3 and handle 2 to insert the problem that end 21 connection structure destroys.

The low-voltage switch handle further comprises a coupler 8, the coupler 8 is used for coupling the handle 2 and the switch switching device of the low-voltage switch, and the torque of the handle 2 is transmitted to the switch switching device of the low-voltage switch to complete the state switching of the low-voltage switch. As shown in fig. 10 to 12, the coupling 8 comprises a first coupling part 81 for coupling with a switch switching device of the low voltage switch and a second coupling part 82 for coupling with the handle 2. As an example, the first coupling portion 81 of the present embodiment includes a square hole 811, and conventionally, the switch switching device of the low-voltage switch of the coupling 8 may include a rotatable square shaft which rotates to switch the low-voltage switch, and the square shaft is engaged with the shaft hole of the square hole 811 of the first coupling portion 81 to couple the first coupling portion 81 and the switch switching device, and further, the first coupling portion 81 and the square shaft may be fixed by a screw connection to fix the coupling 8 to the switch switching device of the low-voltage switch. The coupling of the second coupling portion 82 and the handle 2 is achieved by: as shown in fig. 7, the handle 2 is provided with a square inner cavity 29, the outer contour of the second coupling portion 82 is square to fit the square inner cavity 29, and the second coupling portion 82 is inserted into and fitted in the square inner cavity 29, thereby transmitting the torque of the handle 2.

In the present embodiment, the first coupling portion 81 and the second coupling portion 82 are movably connected, specifically, a first sliding rail 812 is disposed on the first coupling portion 81, a second sliding rail 825 is disposed on the second coupling portion 82, the first sliding rail 812 and the second sliding rail 825 are crossed in a cross shape, an intermediate coupling member 83 is installed between the first coupling portion 81 and the second coupling portion 82, one end of the intermediate coupling member 83 is provided with a first sliding groove 831, the other end of the intermediate coupling member is provided with a second sliding groove 832, the first sliding groove 831 is matched with the first sliding rail 812, and the second sliding groove 832 is matched with the second sliding rail 825, so that the second coupling portion 82 has two sliding degrees of freedom in the vertical direction. If the low-voltage switch is not accurately installed, the position error of the low-voltage switch can be compensated by the movable connection of the second connecting part 82, so that the low-voltage switch is not required to be frequently disassembled and assembled for position adjustment.

As shown in fig. 12, the second coupling portion 82 is a structure having a hollow inner cavity in which the second slide rail 825 is provided, so that the intermediate coupling member 83 can be mounted inside the second coupling portion 82, saving the mounting space.

The low-voltage switch handle further comprises a clamping plate 4, and referring to fig. 5 and fig. 13-14, the main body of the clamping plate 4 is of a sheet structure, the clamping plate 4 is slidably connected to the surface of the connecting panel 1, specifically, the connecting panel 1 is provided with a sliding groove 11, the clamping plate 4 comprises a bending part 41 which is bent to extend into the sliding groove 11, the bending part 41 is in sliding fit with the sliding groove 11, and the bending part 41 and the sliding groove 11 are provided with two sets of parts together, so that the sliding of the clamping plate 4 is more stable. Still be equipped with the piece 7 that resets in spout 11, piece 7 that resets includes T type fore-set 71 and compression spring 72, and the cover is worn in compression spring 72 to T type fore-set 71, and compression spring 72 one end acts on spout 11, and the other end acts on T type fore-set 71, makes T type fore-set 71 support in the portion of bending 41. When the chucking plate 4 slides, the pressing spring 72 compresses and generates an elastic restoring force capable of restoring the chucking plate 4. The catch plate 4 is provided with a central hole 42 for the coupler 8 to pass through, one side of the central hole 42 is provided with an L-shaped flange 44, as shown in fig. 11, one end of the second coupling portion 82 facing the handle 2 is a pointed tapered portion 821, when the coupler 8 passes through the central hole 42, the pointed tapered portion 821 abuts against the flange 44 and pushes the catch plate 4 to slide (as shown in fig. 14, specifically, pushes the catch plate 4 to slide in the direction of T1), and when the second coupling portion 82 passes over the L-shaped flange 44, the catch plate 4 slides reversely under the action of the compression spring 72 to reset (as shown in fig. 14, specifically, slides in the direction of T2), at this time, since the connection panel 1 is stopped by the coupler 8, the cabinet door cannot be opened, and the safety of the cabinet door is ensured.

The unlocking of the cabinet door is realized by that, as shown in fig. 11, an inclined guide surface 824 is arranged at one end of the second coupling portion 82, and when the handle 2 rotates to a position where the inclined guide surface 824 is over against the flange 44, the clamping plate 4 slides towards the unlocking direction (slides towards the direction T1) through the pushing flange 44 of the inclined guide surface 824 when the cabinet door is pulled, so as to realize the opening of the cabinet door.

It can be seen that the coupler 8 needs to be installed into the handle 2 at a predetermined angle, otherwise, if the inclined guide surface 824 is not aligned with the flange 44 after the handle 2 is rotated by a corresponding angle, the cabinet door cannot be opened. In this embodiment, the second coupling portion 82 is further provided with a protruding point 823, one side of the square cavity 29 is provided with a slot 291, and when the connector 8 is mounted, the protruding point 823 is clamped in the slot 291 to achieve angular positioning of the connector 8.

A lock hole 43 is also arranged on the clamping plate 4 and used for locking the rotation of the handle 2. Referring to fig. 15-16, the handle 2 further includes a padlock 25, the padlock 25 is slidably connected to a padlock slot 28 formed in the handle 2, the lever 26 is rotatably connected to the padlock slot 28, one end of the lever 26 is fixed to the lock rod 27, and the other end of the lever 26 is fixed to the padlock 25. When the handle 2 needs to be locked, the hanging and locking block 25 is pulled out, the lever 26 drives the locking rod 27 to extend into the locking hole 43, and then the handle 2 is locked. Similarly, when the rotation of the unlocking handle 2 is needed, the hanging and locking block 25 is pressed down. The padlock block 25 is provided with the hanging ring 251, so that a worker can hang in the hanging ring 251 by using the padlock, and the padlock block 25 cannot be pressed down without unlocking the padlock, thereby improving the safety performance.

The low-voltage switch handle further comprises a locking plate 5 and a gasket 6, the locking plate 5 is fixedly connected with the connecting panel 1 and limits the clamping plate 4 on the surface of the connecting panel 1, and the gasket 6 is used for dust prevention and water prevention. The lock plate 5 is also provided with a lock hole for locking the lock lever 27. Different types of low-voltage switches (such as double-throw switches) may have a plurality of angles of the handle 2 to be locked, and a plurality of locking holes may be formed in different positions of the clamping plate 4 and the locking plate 5, for example, a U-shaped hole 52 may be formed in the locking plate 5 as shown, and a new locking hole can be obtained by quickly penetrating the U-shaped hole 52 when needed.

The low-voltage switch handle provided by the embodiment can be used for low-voltage switches such as fuse combined electrical appliances, isolating switches and double-throw switches.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. Low-voltage switch handle, including connection panel and handle, connection panel is fixed to be set up, the handle inserts to set up in connection panel and with connection panel forms rotatable mechanical connection, its characterized in that: the handle is fixed to the connecting panel through threaded connection.

2. The low voltage switch handle of claim 1, wherein: the connecting panel is provided with a limiting step hole, the handle comprises an insertion end inserted into the limiting step hole, and the limiting ring is fixedly sleeved on the periphery of the insertion end to form an expanded diameter part and abuts against the limiting step hole to limit the handle to be separated.

3. The low voltage switch handle of claim 2, wherein: the insertion end comprises a first tooth part extending towards the periphery of the insertion end, a clamping groove is formed in the first tooth part, the limiting ring is of an annular structure and comprises a second tooth part extending towards the circle center of the limiting ring, a threaded hole is formed in the insertion end, an ear part extending towards the circle center of the limiting ring is arranged on the limiting ring, a through hole matched with the threaded hole is formed in the ear part, the limiting ring is sleeved into the insertion end in a staggered mode through the first tooth part and the second tooth part, the limiting ring is rotated to enable the second tooth part to be clamped into the clamping groove, the through hole in the ear part is enabled to be overlapped with the threaded hole, and then a screw is screwed in to lock the limiting ring and the insertion end, so that the limiting ring is fixedly connected with the handle.

4. The low voltage switch handle of claim 1, wherein: the low-voltage switch is characterized by further comprising a coupler used for coupling the handle and the switch switching device of the low-voltage switch, wherein the coupler comprises a first coupling part coupled with the switch switching device of the low-voltage switch and a second coupling part coupled with the handle, and the first coupling part and the second coupling part can be movably connected.

5. The low voltage switch handle of claim 4, wherein: the connector comprises a first connecting part, a second connecting part, a first sliding rail, a second sliding rail, a middle connecting part and a second connecting part, wherein the first connecting part is provided with the first sliding rail, the second connecting part is provided with the second sliding rail, the moving directions of the first sliding rail and the second sliding rail are crossed, the connector further comprises a middle connecting part, one end of the middle connecting part is connected with the first sliding rail in a sliding fit mode, and the other end of the middle connecting part is connected with the second sliding rail in a sliding fit mode, so that the movable connection of the first connecting part and the second connecting part is achieved.

6. The low voltage switch handle of claim 5, wherein: the second coupling part is provided with a hollow inner cavity, the second slide rail is arranged in the hollow inner cavity, and the middle coupling part is arranged in the hollow inner cavity and is connected with the second slide rail in a sliding fit manner.

7. The low voltage switch handle of claim 4, wherein: the clamping plate is connected to the connecting panel in a sliding mode, and the connecting panel is limited to be separated from the coupler by abutting the clamping plate with the coupler.

8. The low voltage switch handle of claim 7, wherein: and the clamping plate is provided with a central hole for the second coupling part to pass through, one side of the central hole is provided with an L-shaped flanging, one end of the second coupling part is provided with a pointed cone part, when the second coupling part passes through the central hole, the pointed cone part is abutted against the flanging and pushes the clamping plate to slide, and when the second coupling part passes over the flanging, the clamping plate slides and resets under the action of the elastic resetting part so as to abut against the second coupling part to limit the connecting panel to be separated from the coupler.

9. The low voltage switch handle of claim 7, wherein: the handle further comprises a padlock block, a lever and a lock rod, the padlock block is slidably connected into a padlock groove formed in the handle, the lever can be rotatably connected into the padlock groove, one end of the lever is fixedly connected with the lock rod in a clamping mode, and the other end of the lever is fixed with the padlock block, so that the padlock block can be pulled out from the padlock groove, and the lock rod is driven to stretch into the lock hole to achieve rotary locking of the handle.

10. The low voltage switch handle of claim 9, wherein: the padlock is characterized in that a hanging ring used for hanging a padlock is arranged on the padlock block and hung in the hanging ring through the padlock so as to limit the padlock block from pressing downwards into the padlock groove.

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