Safety type low voltage fixed switchgear
By designing three removable cable trays and a cover clip structure in the low-voltage fixed switchgear, the problem of incorrect wire disconnection during wire maintenance is solved, thus improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN UNELECTRA ELECTRIC
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-30
AI Technical Summary
During maintenance, existing low-voltage fixed switchgear is prone to incorrect wiring disconnection and forgetting to reconnect incorrect wiring, resulting in poor safety.
Three cable trays are placed on the support bar and inserted into the cable entry port through a fixed shaft, allowing the cable trays to be pulled out directly upwards to hold three different types of wires: upward, middle, and downward. The design of the cover and the buckle ensures the accurate placement of the wires.
It improves the accuracy of wire repair, avoids the safety risk of forgetting to reinstall wires after they have been mistakenly disconnected, and enhances the safety of the device.
Smart Images

Figure CN224438304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear technology, and more specifically, to a safety-type low-voltage fixed switchgear. Background Technology
[0002] Low-voltage switchgear is suitable for power plants, petroleum, chemical, metallurgical, textile, and high-rise building industries for power transmission, distribution, and energy conversion. It is one of the commonly used power distribution equipment. Existing low-voltage fixed switchgear typically has internal wiring channels to store wires and keep the internal wiring neat. However, in actual wiring, different wires within the wiring channels may run in different directions. For example, an electrical box originating from the middle of the cabinet might be placed in the wiring channel, but its endpoint might be connected to the upper or lower part of the switch. This necessitates identifying the wires within the wiring channels during maintenance, potentially leading to incorrect wire disconnection or forgetting to reconnect the wrong wire, resulting in poor safety. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a safe low-voltage fixed switchgear, which has the advantage of high safety.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a safety-type low-voltage fixed switchgear, including a cabinet.
[0005] The front end of the cabinet is hinged with a switch door, and the inner cavity of the cabinet is equipped with communication and control structures.
[0006] An adhesive board is attached to the rear side of the switch door and the left and right sides of the cabinet cavity. A support strip is fixedly installed on the top of the adhesive board, and a fixing shaft is fixedly installed on the top of the support strip.
[0007] Three cable trays are placed on the support bar. Each cable tray has a cable pass-through port at one end near the center of the cabinet. Each cable tray has vertical freedom relative to the support bar.
[0008] The beneficial effects of adopting the above technical solution are that by placing three cable trays on the support bar and using a fixed shaft to insert into the cable entry port, the three cable trays can be pulled out directly upwards. Furthermore, the cable trays can be used to place cables with three different orientations: upward, middle, and downward. When maintenance is required, the location of the required cable can be quickly found, and the situation of accidentally disconnecting the cable will not occur. Therefore, the safety risk caused by forgetting to reconnect the wrong cable is eliminated, thus improving the safety of the device.
[0009] As a preferred embodiment of this utility model, the fixed shaft is inserted into the wire through-holes at both ends of the three wiring channels, and the length of the fixed shaft is greater than the height of one wiring channel.
[0010] The beneficial effects of adopting the above technical solution are that by using a fixed shaft to fix the cable tray, the horizontal direction of the cable tray can be fixed, and by setting the height of the fixed shaft to be greater than the height of the cable tray, it is possible to observe whether the cable tray is installed in place after placement.
[0011] As a preferred embodiment of this utility model, a weight-reducing hole is provided in the middle of the three wiring channels, and the weight-reducing hole is waist-shaped.
[0012] The beneficial effect of adopting the above technical solution is that by opening weight reduction holes, the overall weight of the cable tray can be reduced, thereby reducing the load on the support strip. Furthermore, the waist-shaped weight reduction holes can be used to fix the cable tray to the cabinet using a single bolt.
[0013] As a preferred technical solution of this utility model, the three cable trays are provided with a cover at one end near the center of the cabinet, and a second buckle is fixedly installed at one end of the cover near the cable tray, and a first buckle is fixedly installed at one end of the cable tray near the cover, and the cover and the first buckle are interlocked.
[0014] The beneficial effect of adopting the above technical solution is that the cover has the freedom to slide laterally relative to the cable tray. In actual use, the cover can be fixed by directly fastening the second buckle to the first buckle, or the second buckle can be inserted into the outside of the first buckle at the end of the cable tray and slid to connect, providing multiple connection methods to facilitate use according to user needs.
[0015] As a preferred embodiment of this utility model, a bracket guide rail is fixedly installed inside the cabinet, and both the communication structure and the control structure are fixedly installed on the bracket guide rail. The cross-section of the bracket guide rail is "L" shaped, and the communication structure is located on the left side of the control structure.
[0016] The beneficial effects of adopting the above technical solution are that the communication structure and control structure are supported and installed by the bracket guide rail, so as to achieve the fixed installation of the communication structure and control structure. In addition, the "L"-shaped bracket guide rail has greater strength and avoids damage caused by deformation.
[0017] As a preferred embodiment of this utility model, a reinforcing rib is fixedly installed at the top of the cabinet, and the reinforcing rib is L-shaped.
[0018] The beneficial effects of adopting the above technical solution are that the L-shaped reinforcing ribs are used to provide strength support for the top of the cabinet, and the reinforcing ribs are provided with round holes for hoisting and transportation.
[0019] As a preferred embodiment of this utility model, a base plate is fixedly installed at the bottom of the cabinet, and concave mounting strips are fixedly installed at both the front and rear ends of the base plate.
[0020] The advantages of adopting the above technical solution are that by setting a base plate to isolate the cabinet from the ground, the cabinet is prevented from directly contacting the ground and getting damp. In addition, the "U"-shaped mounting strip has high support strength, and its surface has round holes for fixing bolts to the ground.
[0021] As a preferred embodiment of this utility model, a lighting lamp is fixedly installed at the top of the switch door, and the lighting lamp is electrically connected to the control structure.
[0022] The beneficial effect of adopting the above technical solution is that the lighting lamp is used to provide light for the operator in poor lighting environments, making it easier for the operator to use and operate the device. Attached Figure Description
[0023] Figure 1 This is a side view of the structure of this utility model;
[0024] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0025] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;
[0026] Figure 4 This utility model Figure 1 Enlarged view of point C in the middle;
[0027] Figure 5 This is a front view structural diagram of the present utility model.
[0028] In the diagram: 1. Cabinet; 2. Door; 3. Communication structure; 4. Control structure; 5. Adhesive board; 6. Support strip; 7. Fixing shaft; 8. Cable tray; 9. Cable entry port; 10. Weight reduction hole; 11. Cover; 12. First clip; 13. Second clip; 14. Bracket rail; 15. Reinforcing rib; 16. Base plate; 17. Lighting light; 18. Mounting strip. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] like Figures 1 to 5 As shown, this utility model provides a safety-type low-voltage fixed switchgear, including a cabinet 1.
[0031] The front end of the cabinet 1 is hinged with a switch door 2, and the inner cavity of the cabinet 1 is equipped with a communication structure 3 and a control structure 4.
[0032] The adhesive board 5 is attached to the rear side of the switch door 2 and the left and right sides of the inner cavity of the cabinet 1. A support strip 6 is fixedly installed on the top of the adhesive board 5, and a fixing shaft 7 is fixedly installed on the top of the support strip 6.
[0033] Three cable trays 8 are placed on the support bar 6. The cable trays 8 have a cable pass-through port 9 at the end near the center of the cabinet 1. All three cable trays 8 have vertical freedom relative to the support bar 6.
[0034] The beneficial effect of adopting the above technical solution is that by placing three cable trays 8 on the support bar 6 and inserting the fixed shaft 7 into the cable insertion port 9, the three cable trays 8 can be pulled out directly upwards. Furthermore, three different directions of cable routing (upward, middle, and downward) can be placed in the three cable trays 8 respectively. When maintenance is required, the location of the required wire can be quickly found, and the situation of incorrectly disconnecting the wire will not occur. Therefore, the safety risk caused by forgetting to reconnect the wrong wire is eliminated, thus improving the safety of the device.
[0035] The fixed shaft 7 is inserted into the wire through-hole 9 at both ends of the three wiring grooves 8, and the length of the fixed shaft 7 is greater than the height of one wiring groove 8.
[0036] The beneficial effect of adopting the above technical solution is that by using the fixed shaft 7 to fix the cable tray 8, the horizontal direction of the cable tray 8 can be fixed. Furthermore, by setting the height value of the fixed shaft 7 to be greater than the height value of the cable tray 8, it is possible to observe whether the cable tray 8 is installed in place after placement.
[0037] Among them, the three cable trays 8 have weight reduction holes 10 in the middle, and the weight reduction holes 10 are waist-shaped.
[0038] The beneficial effect of adopting the above technical solution is that by opening the weight reduction hole 10, the overall weight of the cable tray 8 can be reduced, thereby reducing the load on the support bar 6. Furthermore, the waist-shaped weight reduction hole 10 can also be used by fixing it to the cabinet 1 with a single bolt.
[0039] Among them, the three cable trays 8 are provided with a cover 11 at one end near the center of the cabinet 1. The cover 11 is fixedly installed with a second buckle 13 at one end near the cable tray 8, and the cable tray 8 is fixedly installed with a first buckle 12 at one end near the cover 11. The cover 11 and the first buckle 12 are interlocked.
[0040] The beneficial effect of adopting the above technical solution is that the cover 11 has the freedom to slide laterally relative to the cable tray 8. In actual use, the cover 11 can be fixed by directly fastening the first buckle 12 with the second buckle 13, or the second buckle 13 can be inserted into the outside of the first buckle 12 at the end of the cable tray 8 and slid to connect, providing multiple connection methods to facilitate use according to user needs.
[0041] The cabinet 1 is equipped with a bracket rail 14, and the communication structure 3 and the control structure 4 are both fixedly installed on the bracket rail 14. The bracket rail 14 has an "L" shaped cross section, and the communication structure 3 is located on the left side of the control structure 4.
[0042] The beneficial effects of adopting the above technical solution are that the communication structure 3 and the control structure 4 are supported and installed by the bracket rail 14, so as to achieve the fixed installation of the communication structure 3 and the control structure 4. In addition, the "L"-shaped bracket rail 14 has greater strength and avoids damage caused by deformation.
[0043] Among them, a reinforcing rib 15 is fixedly installed at the top of the cabinet 1. The reinforcing rib 15 is "L" shaped.
[0044] The beneficial effect of adopting the above technical solution is that the "L"-shaped reinforcing rib 15 is used to provide strength support for the top of the cabinet 1, and the reinforcing rib 15 is provided with round holes for hoisting and transportation.
[0045] Among them, a base plate 16 is fixedly installed at the bottom of the cabinet 1, and "U"-shaped mounting strips 18 are fixedly installed at the front and rear ends of the base plate 16.
[0046] The beneficial effects of adopting the above technical solution are that by setting the base plate 16 to isolate the cabinet 1 from the ground, the cabinet 1 is prevented from directly contacting the ground and getting damp. In addition, the "concave" shaped mounting strip 18 has high support strength, and its surface has round holes for fixing bolts to the ground.
[0047] A lighting lamp 17 is fixedly installed at the top of the switch door 2, and the lighting lamp 17 is electrically connected to the control structure 4.
[0048] The beneficial effect of adopting the above technical solution is that the lighting lamp 17 is used to provide light for the operator in poor lighting environments, making it easier for the operator to use and operate the device.
[0049] Working principle and usage process of this utility model:
[0050] The adhesive board 5 is pasted on the cabinet 1 and the switch door 2. The three cable trays 8 are first placed on the support bar 6 without installation and stacked vertically. Then, according to the direction of the cable routing, the cable is divided into three areas: upper, middle and lower. The cable with wires in each area is placed in the corresponding cable tray 8. Then, the ends of the cable are connected to the electrical equipment inside the cabinet 1.
[0051] Finally, the cover 11 is fastened onto the cable tray 8, and the cable tray 8 is inserted into the fixed shaft 7 from top to bottom for fixation.
[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A safety-type low-voltage fixed switchgear, characterized in that: Including server racks, The front end of the cabinet is hinged with a switch door, and the inner cavity of the cabinet is equipped with communication and control structures. An adhesive board is attached to the rear side of the switch door and the left and right sides of the cabinet cavity. A support strip is fixedly installed on the top of the adhesive board, and a fixing shaft is fixedly installed on the top of the support strip. Three cable trays are placed on the support bar. Each cable tray has a cable pass-through port at one end near the center of the cabinet. Each cable tray has vertical freedom relative to the support bar.
2. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: The fixed shaft is inserted into the cable entry holes at both ends of the three cable trays, and the length of the fixed shaft is greater than the height of one cable tray.
3. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: The three cable trays have weight-reducing holes in the middle, and the weight-reducing holes are waist-shaped.
4. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: The three cable trays are provided with a cover at one end near the center of the cabinet. A second buckle is fixedly installed at one end of the cover near the cable tray, and a first buckle is fixedly installed at one end of the cable tray near the cover. The cover and the first buckle are interlocked.
5. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: The cabinet is equipped with a fixed bracket rail. The communication structure and the control structure are both fixedly mounted on the bracket rail. The bracket rail has an L-shaped cross-section, and the communication structure is located to the left of the control structure.
6. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: The top of the cabinet is fixedly equipped with a reinforcing rib, which is L-shaped.
7. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: A base plate is fixedly installed at the bottom of the cabinet, and concave mounting strips are fixedly installed at both the front and rear ends of the base plate.
8. The safety-type low-voltage fixed switchgear according to claim 1, characterized in that: A light is fixedly installed at the top of the switch door, and the light is electrically connected to the control structure.