Switch cabinet convenient to maintain

Abstract

The utility model discloses a switch cabinet convenient to overhaul, which belongs to the switch cabinet convenient to overhaul and comprises a shell used for protecting internal equipment, two fixing frames are fixedly mounted on the vertical inner wall of the shell, grooves are formed in the two fixing frames, threaded rods are rotatably mounted in the grooves, and the threaded rods are fixedly mounted on the vertical inner wall of the shell. A rotating shaft is welded to one end of the threaded rod, a movable rotating rod is slidably mounted in the rotating shaft, a movable block is connected to the periphery of the threaded rod, an I-shaped frame is welded to the side face of the movable block, a plurality of hollow columns are welded to the side face of the I-shaped frame, and springs are arranged in the hollow columns. One end, far away from the hollow column, of the spring is provided with an abutting plate, one end, far away from the moving column, of the abutting plate is welded with a plurality of locking clamps, two ends of the abutting plate are connected with sliding rods, and the switch cabinet can increase the cable fixing force, reduce the hidden danger of short circuit and improve the connection reliability.

Description

Technical Field

[0001] This utility model pertains to switch cabinets that are easy to maintain, and in particular, a switch cabinet that is easy to maintain. Background Technology

[0002] Switchgear plays a vital role in power systems, distributing electrical energy and controlling the operation of electrical equipment. When replacing electrical components, cables can obstruct the removal and installation of components. For example, if you need to replace a relay located at the bottom of the switchgear, it can be difficult to remove the relay and install the new one if the surrounding cables are swaying around. Existing switchgear can meet basic requirements, but its weak cable fixing capabilities increase the risk of short circuits and reduce connection reliability.

[0003] A search of Chinese patent documents (authorization announcement number CN213026969U) reveals that this utility model provides a switch cabinet that facilitates maintenance. The switch cabinet includes a cabinet body, side doors located on the left and right sides of the cabinet body, and cabinet doors located on the front and rear sides of the cabinet body. One end of each side door is pivotally mounted on the cabinet body along its height, while the cabinet doors are pivotally mounted on the free end of the side doors. Additionally, a locking assembly is installed on the side doors to secure them to the cabinet body. This utility model's easy-to-maintain switch cabinet helps increase maintenance space, facilitates collaborative maintenance and replacement of electrical components among operators, and thus improves maintenance efficiency. While this switch cabinet meets basic requirements, its weak cable securing capability increases the risk of short circuits and reduces connection reliability. Utility Model Content

[0004] The purpose of this invention is to provide a switch cabinet that is easy to maintain, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a switch cabinet that is easy to maintain, comprising a housing for protecting internal equipment, two fixed brackets fixedly installed on the vertical inner wall of the housing, each of the two fixed brackets having a groove inside, a threaded rod rotatably installed inside the groove, a rotating shaft welded to one end of the threaded rod, a movable rotating rod slidably installed inside the rotating shaft, a movable block connected to the outer periphery of the threaded rod, an I-shaped frame welded to the side of the movable block, multiple hollow columns welded to the side of the I-shaped frame, a spring installed inside each of the multiple hollow columns, a stop plate installed at the end of the spring away from the hollow column, multiple locking clamps welded to the end of the stop plate away from the movable column, and sliding rods connected to both ends of the stop plate.

[0006] Preferably, a fixing plate is fixedly connected between the two fixing frames, and a flexible plate is welded to the side of the fixing plate. Multiple locking clips are also installed on the side of the flexible plate away from the fixing plate.

[0007] Preferably, a control switch is installed inside the housing, and a connecting wire is connected to the access end of the control switch.

[0008] Preferably, the end of the connecting line furthest from the control switch is connected to a circuit breaker, and an automatic transfer switch is installed on the side of the circuit breaker.

[0009] Preferably, the circuit breaker's access terminal is also connected to a connecting wire, and the end of the connecting wire away from the circuit breaker is equipped with a terminal block for external cable access.

[0010] Preferably, the outer casing is connected to a door on its side, and a heat dissipation base for heat dissipation is installed on the bottom of the outer casing.

[0011] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0012] This easy-to-maintain switchgear benefits from the locking clamp structure. Rotating the moving rod 202 causes the rotating shaft 201 and threaded rod 203 to rotate. One end of the threaded rod 203 rotates within the groove 206, causing the moving block 204 to move closer to the fixed plate 305. The moving block 204 then moves the hollow column 3 and the abutment plate 303 towards the fixed plate 305. Multiple locking clamps 304 secure the cables, preventing accidental cable detachment during maintenance. Compared to traditional switchgear with weak cable fixing capabilities, this structure increases cable fixing force, reduces short-circuit risks, and improves connection reliability.

[0013] This easy-to-maintain switchgear benefits from the structure of springs and moving columns. When the locking clamp 304 contacts the cable, the cable squeezes the locking clamp 304 and the abutment plate 303. The abutment plate 303 drives the slide rod 307 to move inside the grooves on both sides of the I-beam frame 205. The abutment plate 303 and the moving rod 301 squeeze the spring 302, which is compressed until the locking clamp 304 fixes the cable. This structure can prevent hard contact between the locking clamp 304 and the cable, thereby protecting the cable from damage. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0016] Fig. 2 This is a schematic diagram of the locking clip of this utility model;

[0017] Fig. 3 This is a cross-sectional view of the locking clamp of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] In the diagram: 1. Outer casing; 101. Box door; 102. Control switch; 103. Connecting wire; 104. Circuit breaker; 105. Automatic transfer switch; 106. Terminal block; 107. Heat dissipation base; 2. Fixing frame; 201. Rotating shaft; 202. Moving rotating rod; 203. Threaded rod; 204. Moving block; 205. I-shaped frame; 206. Groove; 3. Hollow column; 301. Moving column; 302. Spring; 303. Support plate; 304. Locking clamp; 305. Fixing plate; 306. Flexible plate; 307. Sliding rod. Detailed Implementation

[0020] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0021] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0022] like Figs. 1 to 3The switch cabinet shown includes a housing 1 for protecting internal equipment. Two mounting brackets 2 are fixedly installed on the vertical inner wall of the housing 1. Each mounting bracket 2 has a groove 206 inside. A threaded rod 203 is rotatably mounted inside the groove 206. A rotating shaft 201 is welded to one end of the threaded rod 203. A movable rotating rod 202 is slidably mounted inside the rotating shaft 201. When rotating, the movable rotating rod 202 can move inside the rotating shaft 201, increasing the rotational torque and facilitating the rotation of the rotating shaft 201. A movable block 204 is connected to the outer periphery of the threaded rod 203. An I-beam frame 205 is welded to the side of the movable block 204. Multiple hollow columns 3 are welded to the side of the I-beam frame 205. Springs 302 are installed inside each hollow column 3. A stop plate 303 is installed at the end of the spring 302 away from the hollow column 3. Multiple locking clips are welded to the end of the stop plate 303 away from the movable column 301. 304. The two ends of the abutment plate 303 are connected to slide rods 307. When the locking clamp 304 contacts the cable, the cable squeezes the locking clamp 304 and the abutment plate 303. The abutment plate 303 drives the slide rods 307 to move inside the grooves on both sides of the I-beam frame 205. The abutment plate 303 and the moving rod 301 squeeze the spring 302, compressing the spring 302 until the locking clamp 304 fixes the cable. Rotating the moving rod 202 drives the rotating shaft 201 and the threaded... When rod 203 rotates, one end of threaded rod 203 rotates within groove 206. Threaded rod 203 drives moving block 204 closer to fixed plate 305. Moving block 204 drives hollow column 3 and abutment plate 303 to move towards fixed plate 305. Multiple locking clamps 304 fix the cable to prevent the cable from accidentally touching it during maintenance, causing the cable to fall off. If the cable needs to be removed, the moving rod 202 can be rotated in the opposite direction to separate the locking clamps 304 and remove the cable.

[0023] A fixing plate 305 is fixedly connected between the two fixing brackets 2. A flexible plate 306 is welded to the side of the fixing plate 305. Multiple locking clips 304 are also installed on the side of the flexible plate 306 away from the fixing plate 305. The surfaces of the multiple locking clips 304 are provided with mutually cooperating slots for deep contact between the multiple locking clips 304, so as to fix the cable more firmly and adapt to the fixing of cables of different sizes.

[0024] An internal control switch 102 is installed in the casing 1. A connecting wire 103 is connected to the input terminal of the control switch 102. The end of the connecting wire 103 furthest from the control switch 102 is connected to a circuit breaker 104. The circuit breaker 104 is one of the core components of the switch cabinet, used to disconnect and connect circuits, protecting them from overloads, short circuits, and other faults. It mainly consists of a contact system, an arc-extinguishing device, and an operating mechanism. The contact system uses highly conductive metal materials, such as copper alloy, to ensure good conductivity. The arc-extinguishing device can quickly extinguish the arc when the circuit breaker disconnects the circuit, preventing the arc from continuing to burn and damaging the equipment. The operating mechanism has both manual and electric modes. The electric operating mechanism allows for remote control, facilitating circuit operation. An automatic transfer switch 105 is installed on the side of the circuit breaker 104. The automatic transfer switch 105 is an electrical device that automatically switches between two power sources (usually the main power source and the backup power source). It is mainly used to ensure that critical loads can quickly and seamlessly switch to backup power when the main power supply fails (such as power outages, undervoltage, overvoltage, etc.), thus guaranteeing continuous power supply to the load and avoiding problems such as equipment downtime and data loss due to power failure. The circuit breaker 104 also has a connecting wire 103 at its input terminal. The end of the connecting wire 103 away from the circuit breaker 104 is equipped with a terminal block 106 for external cable access. The terminal block 106 is a component used to connect cables and electrical components, allowing for easy connection and disconnection of cables. Terminal blocks come in various types, such as plug-in type and screw-press type. Plug-in terminal blocks are convenient to connect and suitable for lines requiring frequent maintenance; screw-press type terminal blocks provide a secure connection and are suitable for high-current lines. The terminal blocks are generally made of copper or copper alloy to ensure good conductivity. The cables that need to be connected to the switch cabinet are passed through the locking clips 304 from the bottom, and then the cable connectors are made in contact with the terminal blocks 106. The side of the housing 1 is connected to the door 101, and the bottom of the housing 1 is equipped with a heat dissipation base 107 for heat dissipation.

[0025] Working principle

[0026] When using this easy-to-maintain switchgear, first insert the cable to be connected to the switchgear from the bottom between the locking clips 304, then contact the cable connector with the terminal block 106, rotate the moving rod 202, the moving rod 202 drives the rotating shaft 201 and the threaded rod 203 to rotate, one end of the threaded rod 203 rotates in the groove 206, the threaded rod 203 drives the moving block 204 to move closer to the fixed plate 305, the moving block 204 drives the hollow column 3 and the abutment plate 303 to move towards the fixed plate 305, multiple locking clips 304 fix the cable, preventing the operator from accidentally touching the cable during maintenance and causing the cable to fall off. If it is necessary to remove the cable, the moving rod 202 can be rotated in the opposite direction, the locking clips 304 separate, and the cable can be removed. When the moving rod 202 rotates, the moving rod 202 can move inside the rotating shaft 201, increasing the rotational torque, which is beneficial for the moving rod 202 to drive the rotating shaft 201 to rotate.

[0027] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0028] 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 switch cabinet that is easy to maintain, comprising a housing (1) for protecting internal equipment, characterized in that: Two fixing brackets (2) are fixedly installed on the vertical inner wall of the outer shell (1). The two fixing brackets (2) are provided with grooves (206) inside. A threaded rod (203) is rotatably installed inside the groove (206). A rotating shaft (201) is welded to one end of the threaded rod (203). A movable rotating rod (202) is slidably installed inside the rotating shaft (201). A movable block (204) is connected to the outer periphery of the threaded rod (203). An I-shaped frame (205) is welded to the side of the movable block (204). Multiple hollow columns (3) are welded to the side of the I-shaped frame (205). A spring (302) is provided inside each of the multiple hollow columns (3). A stop plate (303) is installed at the end of the spring (302) away from the hollow column (3). Multiple locking clips (304) are welded to the end of the stop plate (303) away from the movable column (301). A sliding rod (307) is connected to both ends of the stop plate (303).

2. The switchgear for easy maintenance according to claim 1, characterized in that: A fixing plate (305) is fixedly connected between the two fixing frames (2). A flexible plate (306) is welded to the side of the fixing plate (305). Multiple locking clips (304) are also installed on the side of the flexible plate (306) away from the fixing plate (305).

3. The switchgear for easy maintenance according to claim 1, characterized in that: A control switch (102) is installed inside the housing (1), and a connecting wire (103) is connected to the access end of the control switch (102).

4. A switchgear for easy maintenance according to claim 3, characterized in that: The end of the connecting line (103) away from the control switch (102) is connected to a circuit breaker (104), and an automatic transfer switch (105) is installed on the side of the circuit breaker (104).

5. A switchgear for easy maintenance according to claim 4, characterized in that: The circuit breaker (104) is also connected to a connecting line (103), and the end of the connecting line (103) away from the circuit breaker (104) is equipped with a terminal block (106) for external cable access.

6. The switchgear for easy maintenance according to claim 1, characterized in that: The outer casing (1) is connected to a door (101) on its side, and a heat dissipation base (107) for heat dissipation is installed at the bottom of the outer casing (1).

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