Switching-on locking device of change-over switch

Abstract

The utility model relates to the technical field of change-over switches, and discloses a change-over switch closing locking device which comprises a change-over switch body, two mounting plates and a closing knob are arranged on the front wall of the change-over switch body, and the two mounting plates are arranged in a bilateral symmetry mode and located above the closing knob. The opposite sides of the two mounting plates are slidably connected with sliding blocks, a limiting block is fixedly connected between the two sliding blocks, and the limiting block is arranged outside the top end of the closing knob in a sleeving mode. According to the technical scheme, the position of the limiting block can be adjusted by sliding the sliding block on the mounting plate, when the closing knob is in a closing state, the limiting block can be sleeved outside the top end of the closing knob to lock the closing knob, and then the sliding block is locked and fixed through the bolt, so that the structure is simple and convenient, and the operation is convenient. And the locking mechanism is arranged outside the change-over switch body, so that subsequent replacement and maintenance are facilitated, and operators can see the locking state more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of change-over switches, in particular to a closing locking device for a change-over switch. Background Technique

[0002] The change-over switch, also known as a combination switch, is different from the operation of a knife switch. It is a planar operation that rotates left and right. The change-over switch has the advantages of multiple contacts, multiple positions, small volume, reliable performance, convenient operation, flexible installation, etc. It is mostly used as the power input switch in the electrical control circuit of machine tools, playing the role of isolating the power supply. It can also be used as a control switch for directly controlling the infrequent start and stop of a small-capacity asynchronous motor. The change-over switch also has single-pole, double-pole, and three-pole types.

[0003] The locking device for closing the change-over switch in the prior art is usually installed inside the change-over switch, with a complex part structure and it is not convenient for the operator to observe whether it is locked after closing. Therefore, a locking device for closing the change-over switch is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a locking device for closing a change-over switch, which solves the problems put forward in the background technique.

[0005] The embodiment of the present application provides a locking device for closing a change-over switch, including a change-over switch body. Two mounting plates and a closing knob are arranged on the front wall of the change-over switch body. The two mounting plates are symmetrically arranged left and right and are located above the closing knob. A slider is slidably connected to the opposite side of each of the two mounting plates. A limiting block is fixedly connected between the two sliders. The limiting block is sleeved outside the top end of the closing knob. A bolt passes through the front wall of the mounting plate and is threadedly connected to the slider.

[0006] When in use, first rotate the closing knob to a vertical state, which is the closing state at this time. Then the operator slides the slider on the mounting plate, which can adjust the position of the limiting block, so that the limiting block can be sleeved outside the top end of the closing knob to lock the closing knob. After that, lock and fix the slider through the bolt. The structure is simple and convenient, and it is located outside the change-over switch body, which is convenient for subsequent replacement and maintenance, and is more conducive to the operator observing the locking state.

[0007] Optionally, a chute adapted to the slider is provided on the mounting plate.

[0008] By adopting the above technical solution, it is beneficial to the up and down sliding of the slider.

[0009] Optionally, a card slot adapted to the closing knob is provided at the bottom end of the limiting block.

[0010] By adopting the above technical solution, it is beneficial to sleeved the limiting block on the top outside of the closing knob for limiting and locking.

[0011] Optionally, connecting rods are fixedly connected to the outer walls on both sides of the bolt.

[0012] By adopting the above technical solution, the bolt can be rotated manually more flexibly through the connecting rod.

[0013] Optionally, two threaded holes adapted to the bolt are formed in the mounting plate, and the two threaded holes are symmetrically arranged up and down.

[0014] By adopting the above technical solution, it is beneficial to lock and fix the slider after adjusting the position.

[0015] Optionally, a rubber pad is fixedly pasted on the inner wall of the limiting block based on the card slot.

[0016] By adopting the above technical solution, the rubber pad can prevent the limiting block from wearing the surface of the closing knob.

[0017] Optionally, the limiting block is made of metal material.

[0018] By adopting the above technical solution, it is beneficial to improve the strength and toughness of the limiting block and prevent the limiting block from deforming.

[0019] Optionally, the closing knob is in the closing state when it is in the vertical state.

[0020] By adopting the above technical solution, it is convenient for the operator to identify the closing state.

[0021] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0022] The technical solution of the present application can adjust the position of the limiting block by sliding the slider on the mounting plate. When the closing knob is in the closing state, the limiting block can be sleeved on the top outside of the closing knob to lock the closing knob, and then the slider can be locked and fixed by the bolt. The structure is simple and convenient, and it is outside the conversion switch body, which is convenient for subsequent replacement and maintenance, and is more beneficial for the operator to observe the locking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects and advantages of the present invention will become more apparent:

[0024] Figure 1 It is a schematic diagram of the overall structure of a closing locking device for a conversion switch of the present invention;

[0025] Figure 2Schematic diagram of the upward sliding structure of the limit block of a closing locking device for a change-over switch of the present utility model;

[0026] Figure 3 Schematic diagram of the bottom view structure of a closing locking device for a change-over switch of the present utility model;

[0027] Figure 4 Schematic diagram of the structure of the limit block of a closing locking device for a change-over switch of the present utility model.

[0028] In the figure: 1. Change-over switch body; 2. Connecting rod; 3. Bolt; 4. Threaded hole; 5. Limit block; 6. Mounting plate; 7. Chute; 8. Slide block; 9. Closing knob; 10. Rubber pad; 11. Card slot. Specific implementation manner

[0029] Please refer to Figures 1-4 , the present utility model provides a technical solution: a closing locking device for a change-over switch, including a change-over switch body 1, two mounting plates 6 and a closing knob 9 are arranged on the front wall of the change-over switch body 1, the two mounting plates 6 are symmetrically arranged left and right and are located above the closing knob 9, slide blocks 8 are slidably connected to opposite sides of the two mounting plates 6, a limit block 5 is fixedly connected between the two slide blocks 8, the limit block 5 is sleeved outside the top end of the closing knob 9, and a bolt 3 penetrates through the front wall of the mounting plate 6, and the bolt 3 is threadedly connected to the slide block 8.

[0030] In the technical solution of the present utility model, as Figure 3 shown, a chute 7 adapted to the slide block 8 is opened on the mounting plate 6; which is beneficial to the up and down sliding of the slide block 8.

[0031] In the technical solution of the present utility model, as Figure 4 shown, a card slot 11 adapted to the closing knob 9 is opened at the bottom end of the limit block 5; which is beneficial to the limit block 5 being sleeved outside the top end of the closing knob 9 for limit locking.

[0032] In the technical solution of the present utility model, as Figure 1 and Figure 2 shown, connecting rods 2 are fixedly connected to the outer walls on both sides of the bolt 3; the bolt 3 can be manually rotated more flexibly through the connecting rods 2.

[0033] In the technical solution of the present utility model, as Figure 1 and Figure 2 shown, two threaded holes 4 adapted to the bolt 3 are opened on the mounting plate 6, and the two threaded holes 4 are symmetrically arranged up and down; which is beneficial to locking and fixing the slide block 8 after adjusting its position.

[0034] In the technical solution of the present utility model, as Figure 4As shown in the figure, a rubber pad 10 is fixedly adhered to the inner wall of the card slot 11 of the limit block 5; through the rubber pad 10, the surface of the closing knob 9 can be prevented from being worn by the limit block 5.

[0035] In the technical solution of the present utility model, not shown in the figure, the limit block 5 is made of a metal material; which is beneficial to improving the strength and toughness of the limit block 5 and preventing the limit block 5 from deforming.

[0036] In the technical solution of the present utility model, as Figure 1 shown in the figure, when the closing knob 9 is in a vertical state, it is in the closing state; which is convenient for the operator to distinguish the closing state.

[0037] During use, first rotate the closing knob 9 to a vertical state, which is the closing state at this time. Then the operator slides the slider 8 on the mounting plate 6, and the position of the limit block 5 can be adjusted. The limit block 5 can be sleeved outside the top end of the closing knob 9 to lock the closing knob 9. After that, the slider 8 can be locked and fixed by the bolt 3. The structure is simple and convenient, and it is outside the conversion switch body 1, which is convenient for subsequent replacement and maintenance, and is more conducive for the operator to observe the locking state.

[0038] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A closing locking device for a change-over switch, characterized in that: It includes a change-over switch body (1). Two mounting plates (6) and a closing knob (9) are provided on the front wall of the change-over switch body (1). The two mounting plates (6) are symmetrically arranged left and right and are located above the closing knob (9). Sliders (8) are slidably connected to the opposite sides of the two mounting plates (6). A limiting block (5) is fixedly connected between the two sliders (8). The limiting block (5) is sleeved on the outer part of the top end of the closing knob (9). A bolt (3) passes through the front wall of the mounting plate (6), and the bolt (3) is threadedly connected to the slider (8).

2. The closing locking device of the change-over switch according to claim 1, wherein A chute (7) adapted to the slider (8) is provided on the mounting plate (6).

3. The closing locking device of a change-over switch according to claim 1, characterized in that A clamping groove (11) adapted to the closing knob (9) is provided at the bottom end of the limiting block (5).

4. The closing locking device of a change-over switch according to claim 1, characterized in that, Connecting rods (2) are fixedly connected to the outer walls on both sides of the bolt (3).

5. The closing locking device of a change-over switch according to claim 1, characterized in that, Two threaded holes (4) adapted to the bolt (3) are provided on the mounting plate (6), and the two threaded holes (4) are symmetrically arranged up and down.

6. The closing locking device of a change-over switch according to claim 3, characterized in that, A rubber pad (10) is adhesively fixed to the inner wall of the limiting block (5) based on the clamping groove (11).

7. A closing locking device for a change-over switch according to claim 1, characterized in that, The limiting block (5) is made of a metal material.

8. A closing locking device for a change-over switch according to claim 1, characterized in that, When the closing knob (9) is in a vertical state, it is in a closing state.

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