A power switch locking structure
By designing a power switch locking structure and utilizing a combination of a locking frame and a locking rod, the safety hazards of power switch misoperation in existing technologies are solved, maintenance operations are simplified, and safety and economy are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TSINO-DYNATRON ELECTRICAL TECH (BEIJING) CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing power outage locking measures cannot effectively prevent accidental operation of power switches, pose safety hazards, and are cumbersome to operate, making it difficult to meet the requirements of efficiency, safety, and economy in modern equipment maintenance.
A power switch locking structure was designed, including a lock frame and a lock rod. The power switch is locked by a fixing plate and a fixing component. It is compatible with various sizes of locks and can be fixed by hand without loosening the screws, simplifying the tool requirements.
It achieves reliable locking of the power switch, simplifies maintenance operations, reduces the complexity of carrying tools, and improves safety and economy.
Smart Images

Figure CN224519737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, specifically to a power switch locking structure. Background Technology
[0002] In the daily maintenance and repair of numerous devices, ensuring that the equipment is powered off during maintenance is a crucial step in guaranteeing the safety of maintenance personnel and the stability of the equipment. However, existing power-off locking measures have many shortcomings and urgently need improvement.
[0003] On the one hand, simple solutions such as warning signs and plastic cable ties are widely used to remind maintenance personnel to pay attention to the power-off status. However, these solutions have obvious drawbacks. Warning signs are easily overlooked, and plastic cable ties can be easily removed, failing to effectively prevent the power switch from being accidentally operated from a physical perspective. This can lead to maintenance personnel facing the risk of electric shock, and equipment may also be damaged due to accidental power-on.
[0004] On the other hand, while traditional mechanical locks can provide physical locking to a certain extent, they rely on the keyhole of the switch itself. This requires maintenance personnel to have various sizes of locks and corresponding tools. This cumbersome preparation not only increases the complexity of maintenance operations but may also lead to delays due to incompatible tools. Furthermore, the use of traditional mechanical locks suffers from low security and high cost, making it difficult to meet the requirements of modern equipment maintenance for efficiency, safety, and economy. Utility Model Content
[0005] Therefore, this utility model provides a power switch locking structure to solve the problems existing in the above-mentioned technology.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A power switch locking structure includes a lock frame, a lock bar, and a padlock:
[0008] The lock frame includes a first fixing plate, a second fixing plate, and a third fixing plate. The first fixing plate is used to connect to the power equipment box and is located near the power switch. One end of the second fixing plate is fixedly connected to one end of the third fixing plate, and the second fixing plate and the third fixing plate are arranged perpendicularly. Both the second fixing plate and the third fixing plate are perpendicular to the first fixing plate and fixedly connected. A first opening is provided at the connection between the second fixing plate and the third fixing plate, and a second opening is provided on the third fixing plate for the padlock to pass through.
[0009] The locking bar includes a fourth fixing plate, the thickness of which is less than the size of the first opening. The fourth fixing plate has a third opening for the padlock to pass through. The fourth fixing plate is also provided with a fixing member, and the fourth fixing plate is fixedly connected to the second fixing plate or the third fixing plate through the fixing member.
[0010] Optionally, the fastener is a screw that cannot be loosened by hand, and the screw passes through the fourth fixing plate.
[0011] Optionally, the second fixing plate is provided with a first threaded hole corresponding to the hand-tightened screw, and the fourth fixing plate is fixed to the second fixing plate by the hand-tightened screw.
[0012] Optionally, the third fixing plate is provided with a second threaded hole corresponding to the hand-tightened screw, and the fourth fixing plate is fixed to the third fixing plate by the hand-tightened screw;
[0013] When the fourth fixing plate is fixed to the third fixing plate, one end of the fourth fixing plate passes through the first opening and is placed at the power switch to lock the power switch, and at this time the second opening and the third opening are in the same position.
[0014] Optionally, the first fixing plate has at least two fourth openings, and the fourth openings of the first fixing plate are fixedly connected to the power supply equipment box by bolts.
[0015] This utility model has at least the following beneficial effects:
[0016] This utility model uses a first fixing plate to be directly fixed next to the switch on the power supply equipment. The second and third fixing plates are vertically fixed to the first fixing plate, and the second and third fixing plates are perpendicular to each other. A first opening is made between the second and third fixing plates, through which a fourth fixing plate can pass. Depending on whether it is under maintenance or not, the fourth fixing plate is connected to the second or third fixing plate by a fastener. In the maintenance state, the fourth fixing plate passes through the first opening to limit the power switch. In the non-maintenance state, it is fixed to the second fixing plate, which will not affect the normal use of the power switch, and at the same time prevents the locking rod from moving or being lost.
[0017] The second and third openings are made on the third and fourth fixing plates, respectively, so that the padlock can pass through the two openings and be double-locked with the fixing parts to further lock the fourth fixing plate, so that it can be made unremovable and can be moved at will. Attached Figure Description
[0018] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.
[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0020] Figure 1 This is a schematic diagram of the maintenance state structure according to an embodiment of the present invention;
[0021] Figure 2 for Figure 1 Enlarged structural diagram of section A;
[0022] Figure 3 This is a schematic diagram of the structure in a non-maintenance state according to an embodiment of the present invention;
[0023] Figure 4 for Figure 3 Enlarged structural diagram of section B;
[0024] Figure 5 This is a schematic diagram of a lock frame structure according to an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of the locking rod structure according to one embodiment of the present invention.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Fourth opening; 2. First opening; 3. Second opening; 4. Second threaded hole; 5. First threaded hole; 6. First fixing plate; 7. Second fixing plate; 8. Third fixing plate; 9. Fourth fixing plate; 10. Third opening; 11. Hand-tightened screw that does not come off; 12. Power supply box; 13. Lock frame; 14. Locking bar; 15. Padlock; 16. Power switch. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0029] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.
[0030] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.
[0031] like Figures 1-6 As shown, this utility model discloses a locking structure for a power switch 16, including a lock frame 13, a lock rod 14, and a padlock 15.
[0032] The lock frame 13 includes a first fixing plate 6, a second fixing plate 7, and a third fixing plate 8. The first fixing plate 6 is used to connect to the power equipment box 12 and is located near the power switch 16. One end of the second fixing plate 7 is fixedly connected to one end of the third fixing plate 8, and the second fixing plate 7 and the third fixing plate 8 are arranged perpendicularly. The second fixing plate 7 and the third fixing plate 8 are both perpendicular to the first fixing plate 6 and fixedly connected. A first opening 2 is provided at the connection between the second fixing plate 7 and the third fixing plate 8, and a second opening 3 is provided on the third fixing plate 8 for the padlock 15 to pass through.
[0033] The locking rod 14 includes a fourth fixing plate 9, the thickness of which is less than the size of the first opening 2. The fourth fixing plate 9 has a third opening 10 for the padlock 15 to pass through. The fourth fixing plate 9 is also provided with a fixing member, and the fourth fixing plate 9 is fixedly connected to the second fixing plate 7 or the third fixing plate 8 through the fixing member.
[0034] The first fixing plate 6 has at least two opposing planar structures. One side is connected to the power supply box 12, and the other side is connected to the second fixing plate 7 and the third fixing plate 8. One end of the second fixing plate 7 and the third fixing plate 8 are connected to form a right-angle structure. One side of the second fixing plate 7 is fixed to the first fixing plate 6. The second fixing plate 7 is located near the power switch 16. The first opening 2 is provided along the two surfaces of the second fixing plate 7 and the third fixing plate 8 that are close to each other. A through hole is opened at the position where the second fixing plate 7 and the third fixing plate 8 are connected to allow the locking rod 14 to pass through the first opening 2 from two directions. The fourth fixing plate 9 of the locking rod 14 includes two parts. One part is a fixing block connected to the second fixing plate 7 or the third fixing plate 8. The other part is a limiting rod structure adapted to the first opening 2. The limiting rod is integrally set with the fixing block, and a fixing member is provided on the fixing block. The fourth fixing plate 9 is fixedly connected to the second fixing plate 7 or the third fixing plate 8 through the fixing member.
[0035] In the maintenance state, the fourth fixing plate 9 is fixed on the third fixing plate 8, and the limiting rod of the fourth fixing plate 9 passes horizontally through the first opening 2 and is placed at the power switch 16 to limit the power switch 16; in the non-maintenance state, the fourth fixing plate 9 is fixed on the second fixing plate 7, and the limiting rod of the fourth fixing plate 9 passes vertically through the first opening 2, without limiting the power switch 16.
[0036] The locking rod 14 can be set in different shapes, as long as one end can pass through the first opening 2 and limit the power switch 16.
[0037] In a further embodiment, a padlock 15 is also provided, and a second opening 3 is provided on the third fixing plate 8, and a third opening 10 is provided on the fixing block of the fourth fixing plate 9. When the fourth fixing plate 9 is fixed on the third fixing plate 8, when the limiting rod passes through the first opening 2 to limit the power switch 16, the second opening 3 corresponds to the third opening 10. The padlock 15 passes through the two openings to hold the fourth fixing plate 9 and the third fixing plate 8 together, so that they cannot be moved arbitrarily and cannot be removed.
[0038] Additionally, it should be noted that the second opening 3 and the third opening 10 can be set with a diameter larger than that of most conventional padlock models 15, so as to be compatible with different padlocks 15. In addition, other types of locks can also be installed in the two openings, as long as they can pass through the two openings and be locked.
[0039] In one specific embodiment, the fastener is a hand-tight screw 11 that cannot be removed, and the hand-tight screw 11 is disposed through the fourth fixing plate 9.
[0040] By setting the fastener to a screw 11 that cannot be loosened by hand, maintenance personnel can complete the change of maintenance status without carrying too many tools.
[0041] In a further specific embodiment, the second fixing plate 7 is provided with a first threaded hole 5 corresponding to the hand-tightened non-detachable screw 11, and the fourth fixing plate 9 is fixed to the second fixing plate 7 by the hand-tightened non-detachable screw 11.
[0042] The third fixing plate 8 is provided with a second threaded hole 4 corresponding to the hand-tightened non-removable screw 11, and the fourth fixing plate 9 is fixed to the third fixing plate 8 by the hand-tightened non-removable screw 11.
[0043] When the fourth fixing plate 9 is fixed to the third fixing plate 8, one end of the fourth fixing plate 9 passes through the first opening and is placed at the power switch 16 to lock the power switch 16. At this time, the second opening 3 and the third opening 10 are in the same position.
[0044] The hand-tight screw 11 on the fourth fixing plate 9 passes through the fourth fixing plate 9. A first threaded hole 5 is opened on the second fixing plate 7, and a second threaded hole 4 is opened on the third fixing plate 8. Both the first threaded hole 5 and the second threaded hole 4 are adapted to the hand-tight screw 11 and are used to fix the hand-tight screw 11, so that the fourth fixing plate 9 is fixed to the second fixing plate 7 or the third fixing plate 8.
[0045] In addition, the specific connection between the first fixing plate 6 and the power equipment box 12 is as follows: at least two fourth openings 1 are provided on the first fixing plate 6, and the fourth openings 1 of the first fixing plate 6 are fixedly connected to the power equipment box 12 by bolts.
[0046] At least two fourth openings 1 are provided. The first fixing plate 6 is installed to the power supply equipment box 12 by installing bolts in the fourth openings 1.
[0047] The beneficial effects of this utility model are as follows:
[0048] The diameters of the second opening 3 of the lock frame 13 and the third opening 10 of the lock rod 14 can be relatively large, thereby enabling compatibility with various specifications of locks and reducing costs.
[0049] The locking rod 14 is fixed by hand by loosening the screw 11 without it coming off, so maintenance personnel do not need to carry too many tools;
[0050] The locking structure of the power switch 16 is fixed to the robot drive control integrated machine. Maintenance personnel do not need to do any other auxiliary calculations. The operation is flexible and the disassembly and assembly are simple.
[0051] The locking structure of the power switch 16 is compatible with both screw fixing and padlock fixing 15, and cannot be easily removed, making it safe and reliable.
[0052] The aforementioned locking structure installation device can also be other devices for installing the power switch 16;
[0053] Lock frame 13 and lock bar 14 can be made of metal or other high-strength materials;
[0054] The locking device is not limited to padlock 15 or other locking mechanisms.
[0055] The locking structure of the power switch 16 is installed on the equipment and requires no other auxiliary modifications.
[0056] The locking structure of the power switch 16 is double-locked by screws and padlock 15, which is safe and reliable.
[0057] The locking rod 14 is fixed by hand by loosening the screw 11 without removing it, requiring no complicated tools, making it easy to assemble and disassemble and highly flexible.
[0058] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0059] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
[0060] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.
Claims
1. A power switch lockout structure, characterized by: Includes lock frame, lock bar, and padlock: The lock frame includes a first fixing plate, a second fixing plate, and a third fixing plate. The first fixing plate is used to connect to the power equipment box and is located near the power switch. One end of the second fixing plate is fixedly connected to one end of the third fixing plate, and the second fixing plate and the third fixing plate are arranged perpendicularly. Both the second fixing plate and the third fixing plate are perpendicular to the first fixing plate and fixedly connected. A first opening is provided at the connection between the second fixing plate and the third fixing plate, and a second opening is provided on the third fixing plate for the padlock to pass through. The locking bar includes a fourth fixing plate, the thickness of which is less than the size of the first opening. The fourth fixing plate has a third opening for the padlock to pass through. The fourth fixing plate is also provided with a fixing member, and the fourth fixing plate is fixedly connected to the second fixing plate or the third fixing plate through the fixing member.
2. The power switch lockout structure of claim 1, wherein: The fastener is a screw that cannot be loosened by hand, and the screw passes through the fourth fixing plate.
3. The power switch lockout structure of claim 1, wherein: The second fixing plate has a first threaded hole corresponding to the hand-tightened screw, and the fourth fixing plate is fixed to the second fixing plate by the hand-tightened screw.
4. The power switch lockout structure of claim 1, wherein: The third fixing plate is provided with a second threaded hole corresponding to the hand-tightened screw, and the fourth fixing plate is fixed to the third fixing plate by the hand-tightened screw. When the fourth fixing plate is fixed to the third fixing plate, one end of the fourth fixing plate passes through the first opening and is placed at the power switch to lock the power switch, and at this time the second opening and the third opening are in the same position.
5. The power switch lockout structure of claim 1, wherein: The first fixing plate has at least two fourth openings, and the fourth openings of the first fixing plate are fixedly connected to the power equipment box by bolts.