A low voltage switchgear assembly lock mechanism
By designing a padlock mechanism for low-voltage switchgear, components such as round rods, sliding cylinders, vertical plates, and screws are used to limit the switch position. Combined with an elastic clamping plate and a lock body, this solves the problem of ineffective limiting in existing technologies and ensures maintenance safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG HAOCHENG SWITCHGEAR CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-29
Smart Images

Figure CN224305189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage switchgear technology, and more specifically, to a padlock mechanism for low-voltage switchgear. Background Technology
[0002] In industrial environments such as factories and workshops, low-voltage switchgear, such as distribution cabinets and control cabinets, is an important part of power distribution and equipment control in factories and workshops. When switchgear malfunctions, maintenance personnel need to repair the equipment in a timely manner to ensure the normal use of the circuit.
[0003] Currently, when maintenance personnel repair switchgear, they need to disconnect the power. During the repair process, to prevent accidental power restoration, which could pose a danger to personnel, maintenance personnel install safety locks on the switchgear to prevent unauthorized power restoration. However, in actual operation, due to the different types of switches on the switchgear, when locking a row of switches, using only one lock body is insufficient to limit all switches, which is not sufficient for use and can easily lead to danger. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a padlock mechanism for low-voltage switchgear that overcomes or at least partially solves the above technical problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a padlock mechanism for a low-voltage switchgear assembly, including a switch body, a first plug hole, and a padlock mechanism.
[0007] The padlock mechanism includes:
[0008] A round rod is disposed outside the switch body, and sliding cylinders are sleeved at both ends of the round rod;
[0009] A vertical plate, which is stably installed at the end of the slide cylinder.
[0010] A screw, which is threaded onto a vertical plate and has one end inserted into the first insertion hole;
[0011] A reinforcing mechanism, mounted on a round rod, is used to limit the on / off switch on the switch body.
[0012] In a preferred embodiment, the reinforcing mechanism includes a connecting plate, an elastic clamping plate, and a lock body. The connecting plate is movably mounted on the round rod, and the elastic clamping plate is provided on the outer side of the connecting plate.
[0013] In a preferred embodiment, the connecting plate and the elastic clamping plate are respectively provided with through holes, and the lock body is installed on the connecting plate.
[0014] In a preferred embodiment, the switch body is provided with a first insertion hole, which is located on both sides of the switch body, and the centers of the two first insertion holes are arranged on the same straight line.
[0015] In a preferred embodiment, the outer side of the vertical plate is provided with a threaded hole, and the screw is screwed into the threaded hole.
[0016] In a preferred embodiment, the outer surface of the round rod is provided with a plurality of second insertion holes, and the outer surface of the slide cylinder is provided with an insertion hole. An insertion rod is provided inside the insertion hole, and the insertion rod is engaged with the interior of the second insertion hole.
[0017] In a preferred embodiment, a circular baffle is fixed at the end of the round rod, and an annular plate is provided on the inner side of the end of the slide cylinder. The annular plate is sleeved on the round rod and slides, corresponding to the position of the circular baffle.
[0018] In a preferred embodiment, an elastic limiting plate is further provided on the outside of the connecting plate.
[0019] The present invention provides a padlock mechanism for low-voltage switchgear, the advantages of which include:
[0020] 1. A sliding cylinder is installed on a round rod, and a vertical plate is installed at the end of the sliding cylinder. A screw is threaded inside the vertical plate. When in use, the vertical plate is moved to the position outside the switch on the switch body, and the screw is screwed into the first insertion hole. One end of the screw is moved to the position above the outside of the switch to limit the switch, so that the switch cannot be pushed upward. This can prevent accidental operation by someone pushing the switch up to supply power and causing harm to maintenance personnel.
[0021] 2. By installing a connecting plate on the round rod, and installing an elastic clamping plate on one side of the connecting plate, the switch is clamped by the elastic clamping plate. The lock body is installed on the connecting plate and the elastic clamping plate, and the elastic limit plate is pressed against the gap on the switch body, which can limit the switch and prevent it from being pushed, thus ensuring safety. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the vertical plate structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;
[0026] Figure 4 This is an exploded view of the circular rod and sliding cylinder of this utility model.
[0027] In the diagram: 1. Switch body; 2. First insertion hole; 3. Padlock mechanism; 31. Round rod; 311. Slide cylinder; 32. Vertical plate; 33. Screw; 4. Reinforcing mechanism; 41. Connecting plate; 42. Elastic clamping plate; 43. Lock body; 5. Through hole; 6. Threaded hole; 7. Second insertion hole; 8. Through hole; 9. Insertion rod; 10. Circular baffle; 11. Ring plate; 12. Elastic limiting plate. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example
[0029] Reference Figures 1-4 This utility model provides a technical solution: a padlock mechanism for a low-voltage switchgear assembly, including a switch body 1, a first insertion hole 2, a reinforcing mechanism 4, and a padlock mechanism 3. The padlock mechanism 3 includes a round rod 31, which is disposed outside the switch body 1. Slide cylinders 311 are sleeved at both ends of the round rod 31. A vertical plate 32 is stably installed at the end of the slide cylinder 311. A screw 33 is threadedly connected to the vertical plate 32, and one end of the screw 33 extends into the first insertion hole 2. The reinforcing mechanism 4 is installed on the round rod 31 and is used to limit the switch on the switch body 1.
[0030] A slide cylinder 311 is slidably installed on the round rod 31. A vertical plate 32 is installed at the end of the slide cylinder 311, and a screw 33 is threaded inside the vertical plate 32. When in use, the vertical plate 32 is moved to the position outside the switch on the switch body 1, and the screw 33 is screwed into the first insertion hole 2. One end of the screw 33 is moved to the position above the outside of the switch to limit the switch, so that the switch cannot be pushed upward. This can prevent accidental operation by someone pushing the switch up to supply power and causing harm to maintenance personnel.
[0031] In a preferred embodiment, the reinforcing mechanism 4 includes a connecting plate 41, an elastic clamping plate 42, and a lock body 43. The connecting plate 41 is movably mounted on the round rod 31, and the elastic clamping plate 42 is provided on the outer side of the connecting plate 41. The connecting plate 41 and the elastic clamping plate 42 are respectively provided with through holes 5, and the lock body 43 is mounted on the connecting plate 41.
[0032] When using this device, the connecting plate 41 can be rotated to match the tilt angle of the switch. The elastic clamping plate 42 and the connecting plate 41 work together to clamp the switch. Then, one end of the elastic limiting plate 12 is moved into the gap on the switch body 1 and pressed against the gap, preventing the connecting plate 41 from rotating and thus preventing the switch from rotating. Finally, the lock body 43 is installed on the connecting plate 41 and the elastic clamping plate 42 to increase security. Without a key, the lock body 43 cannot be opened to push the switch, thus ensuring the safety of maintenance personnel and preventing the risk of electric shock.
[0033] In a preferred embodiment, the switch body 1 is provided with a first insertion hole 2, which is located on both sides of the switch key on the switch body 1. The centers of the two first insertion holes 2 are aligned on the same straight line. The outer side of the vertical plate 32 is provided with a threaded hole 6, and the screw 33 is screwed into the threaded hole 6. The first insertion hole 2 on the switch body 1 allows the screw 33 to be screwed into the first insertion hole 2 and extend out of the first insertion hole 2, so that one end of the screw 33 moves to the upper part of the switch. When the switch is pushed upward, it will be blocked by the screw 33, so that the switch cannot be pushed up smoothly and the closing and power supply operation will not be completed.
[0034] By providing several second insertion holes 7 on the outer surface of the round rod 31 and through holes 8 on the outer surface of the slide cylinder 311, and by providing insertion rods 9 inside the through holes 8, the slide cylinder 311 is stably mounted on the round rod 31 during use. The slide cylinder 311 is hollow inside, and a circular baffle 10 is fixed at the end of the round rod 31. An annular plate 11 is provided on the inner side of the end of the slide cylinder 311, and the annular plate 11 is sleeved on the round rod. The slide cylinder 311 slides on the round rod 31 and corresponds to the position of the circular baffle 10. When in use, the position of the vertical plate 32 can be adjusted by controlling the slide cylinder 311 to slide on the round rod 31. The vertical plate 32 is set on the outside of the switch, and the position of the screw 33 corresponds to the position of the first insertion hole 2. When the slide cylinder 311 is pulled, in order to prevent the slide cylinder 311 from falling off the round rod 31, the annular plate 11 will abut against the circular baffle 10, so that the slide cylinder 311 always slides on the round rod 31.
[0035] By providing an elastic limiting plate 12 on the outside of the connecting plate 41, after the switch is clamped by the elastic clamping plate 42, one end of the elastic limiting plate 12 is moved into the switch gap on the switch body 1, so that the switch cannot be rotated normally, thereby avoiding misoperation that could lead to power supply and ensuring the safety of maintenance personnel.
[0036] Specifically, the working process or working principle of a padlock mechanism for low-voltage switchgear is as follows: Currently, when maintenance personnel are repairing switchgear, they need to disconnect the power to the switchgear. During the maintenance process, in order to prevent accidental operation and direct power restoration, which would pose a danger to personnel, maintenance personnel will install safety locks on the switchgear to prevent someone from pushing the switch to restore power. However, in actual operation, due to the different switches on the switchgear, when locking the row of switches, using only one lock body 43 is not enough to limit all the switches, which cannot meet the needs of use and is prone to danger. Therefore, this device was designed to solve this problem.
[0037] This device can limit the operation of multiple switches to prevent accidental power supply and injury to maintenance personnel. Specifically, when a switch malfunctions, the device must be powered off. To prevent accidental operation, the switch is closed to supply power. The maintenance personnel then turn the switch downwards to disconnect the power. Next, the padlock mechanism 3 is installed at the switch position. Based on the length of the multiple switches, the slide cylinder 311 slides on the round rod 31. The vertical plate 32 at the end of the slide cylinder 311 is moved to the side of the switch. Both ends of the slide cylinder 311 slide, moving the two vertical plates 32 to the left and right sides of the multiple switches respectively. After determining the position of the slide cylinder 311, the plug rod 9 is inserted into the insertion hole 8 and extends into the second insertion hole 7. The plug rod 9 is then engaged in the second insertion hole 7 to position the slide cylinder 311.
[0038] Then, the screw 33 is continuously screwed into the threaded hole 6 and inserted into the first insertion hole 2. One end of the screw 33 is moved to a position above the outer surface of the switch to limit the switch and prevent it from being pushed upward, thus preventing accidental operation.
[0039] To improve the performance, when the device is placed in the switch position, the connecting plate 41 can be rotated and the elastic clamping plate 42 can be opened. The tilt of the elastic clamping plate 42 can be aligned with the tilt of the switch. The switch can be clamped by the elastic clamping plate 42, and the connecting plate 41 can be pushed to move, so that the elastic clamping plate 42 can clamp a larger area of the switch and make the clamping stable. Then, one end of the elastic limiting plate 12 can be moved to the gap between the switch and the switch body 1, so that one end of the elastic limiting plate 12 abuts against the gap.
[0040] Finally, the lock body 43 is installed on the connecting plate 41 and the elastic clamping plate 42. In this way, the round rod 31 cannot be removed from the switch body 1, and the switch cannot be pushed, thus ensuring that the switch will not be accidentally pushed open and powered on, avoiding danger to maintenance personnel.
Claims
1. A padlock mechanism for a low-voltage switchgear assembly, characterized in that, It includes a switch body (1), a first plug hole (2), and a padlock mechanism (3); The padlock mechanism (3) includes: A round rod (31) is disposed outside the switch body (1), and the two ends of the round rod (31) are sleeved with slide cylinders (311). Vertical plate (32), which is stably installed at the end of slide cylinder (311) The screw (33) is threaded onto the vertical plate (32), and one end of the screw (33) extends into the first insertion hole (2); A reinforcing mechanism (4) is mounted on a round rod (31) and is used to limit the on / off switch on the switch body (1).
2. The padlock mechanism for a low-voltage switchgear assembly according to claim 1, characterized in that, The reinforcing mechanism (4) includes a connecting plate (41), an elastic clamping plate (42) and a lock body (43). The connecting plate (41) is movably mounted on the round rod (31), and the elastic clamping plate (42) is provided on the outer side of the connecting plate (41).
3. The padlock mechanism for a low-voltage switchgear assembly according to claim 2, characterized in that, The connecting plate (41) and the elastic clamping plate (42) are respectively provided with through holes (5), and the lock body (43) is installed on the connecting plate (41).
4. A padlock mechanism for a low-voltage switchgear assembly according to claim 3, characterized in that, The switch body (1) is provided with a first plug hole (2), which is located on both sides of the switch key on the switch body (1), and the centers of the two first plug holes (2) are located on the same straight line.
5. A padlock mechanism for a low-voltage switchgear assembly according to claim 4, characterized in that, The outer side of the vertical plate (32) is provided with a threaded hole (6), and the screw (33) is screwed into the threaded hole (6).
6. A padlock mechanism for a low-voltage switchgear assembly according to claim 5, characterized in that, The outer surface of the round rod (31) is provided with several second insertion holes (7), and the outer surface of the slide cylinder (311) is provided with through holes (8). The inside of the through holes (8) is provided with a insertion rod (9), and the insertion rod (9) is inserted into the inside of the second insertion holes (7).
7. A padlock mechanism for a low-voltage switchgear assembly according to claim 6, characterized in that, The end of the round rod (31) is stabilized by a circular baffle (10), and an annular plate (11) is provided on the inner side of the end of the sliding cylinder (311). The annular plate (11) is sleeved on the round rod (31) and slides, corresponding to the position of the circular baffle (10).
8. A padlock mechanism for a low-voltage switchgear assembly according to claim 7, characterized in that, An elastic limiting plate (12) is also provided on the outside of the connecting plate (41).