A circuit arrangement with overvoltage protection

Abstract

The utility model discloses a kind of circuit devices with overvoltage protection, belong to overvoltage protection technical field, including slide, several position locking mechanism structures are arranged in slide, and the end of position locking mechanism structure far from slide is engaged and installed with mounting seat component, through the position locking mechanism structure of slide inside slidably and the mounting seat component cooperation of quick engagement disassembly, can be flexibly adjusted mounting seat component position according to the installation hole pitch of different specifications overvoltage protection module (such as 1 line type, 2 line type or customized hole distance module), without reaming or overall replacement to mounting plate, and mounting seat component is realized tool-free quick disassembly by L-shaped dog, effectively solve the poor adaptability of existing device, the problem of cumbersome maintenance operation, simultaneously avoid the situation that screw installation is easy to scratch surrounding cable or element in narrow space, significantly improve equipment maintenance efficiency and operation safety.

Description

Technical Field

[0001] This utility model relates to the field of overvoltage protection technology, and more specifically, to a circuit device with overvoltage protection. Background Technology

[0002] Circuit devices with overvoltage protection are suitable for industrial production, power transmission, and civil power distribution. They can provide overvoltage protection for electrical equipment of different specifications and have the characteristics of quick installation and maintenance.

[0003] During the operation of electrical systems, overvoltage can easily lead to damage to electrical equipment, short circuits, and even safety accidents. Therefore, overvoltage protection devices are key components in electrical systems. Currently, overvoltage protection circuit devices on the market are mainly divided into 1-wire (single-pole) and 2-wire (double-pole) types. In some special scenarios, customized hole spacing protection modules are required (such as photovoltaic power station lightning protection modules and data center signal overvoltage protection modules). These modules typically have 1-4 mounting holes with varying spacing between them. However, existing overvoltage protection circuit devices typically use fixed mounting plates connected to electrical cabinets. The hole spacing on the mounting plates is fixed, and they can only match a single specification of protection module. When it is necessary to replace protection modules of different specifications or upgrade equipment, the mounting plates need to be re-drilled or replaced entirely. This operation is cumbersome and time-consuming, resulting in low equipment maintenance efficiency. At the same time, in small electrical cabinets, dense wiring areas, and other confined environments, screw installation requires the use of tools. Space constraints make installation difficult and may even scratch surrounding cables or components. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: A circuit device with overvoltage protection includes a slide assembly, wherein a position locking mechanism is provided in the slide, and a mounting base assembly is engaged at the end of the positioning assembly away from the slide. The position locking mechanism includes a button assembly and a locking assembly. The locking assembly is provided with a wedge-shaped locking block for limiting the position of the button assembly. The mounting base assembly includes a housing. A limiting block is provided inside the housing. A second spring is connected to both the upper and lower ends of the limiting block. An L-shaped claw is connected to the end of each of the two second springs away from the limiting block. A rotating shaft is passed through the middle of a single L-shaped claw. The two ends of the rotating shaft are rotatably connected to the inner walls of both sides of the housing. A mounting hole is provided on the side of the housing away from the slide.

[0005] Furthermore, the button assembly includes a guide shaft, and two wedge-shaped blocks are provided at one end of the guide shaft near the slide. The outer walls of the two wedge-shaped blocks are machined into wedge-shaped surfaces that are adapted to the wedge-shaped locking blocks, and the inclination direction of the wedge-shaped surfaces corresponds to the contact end of the wedge-shaped locking blocks. A first limiting plate is provided in the middle of the guide shaft, and a reset assembly is provided at the other end of the guide shaft.

[0006] Furthermore, the reset assembly includes a slider, and a first protrusion is provided on the side of the slider near the wedge block for limiting the first protrusion. A sliding groove adapted to the sliding of the first protrusion is provided in the slide rail. A hole is provided in the middle of the slider to allow the guide shaft to pass through. A first spring is sleeved on the portion of the guide shaft located between the slider and the first limiting plate, and a third limiting plate is provided on the end of the first spring away from the slide rail.

[0007] Furthermore, the third limiting plate has a limiting protrusion at the end away from the slide rail that engages with the mounting bracket assembly for snapping.

[0008] Furthermore, the wedge-shaped locking blocks are symmetrically arranged on both sides of the button assembly to limit the wedge-shaped blocks. The end of the wedge-shaped locking block near the wedge-shaped block is an inclined structure that fits against the wedge-shaped surface of the wedge-shaped block. The axial locking of the wedge-shaped block is achieved by the contact of the wedge-shaped surface. The slide is provided with contraction cavities at both ends corresponding to the wedge-shaped locking blocks. A third spring is connected between the wedge-shaped locking block and the inner wall of the contraction cavity.

[0009] Furthermore, baffles are provided at both ends of the slide, and the baffles at both ends are fixedly connected by bolts. A bolt for fixing device is provided at one end of the slide.

[0010] In summary, this utility model has the following beneficial effects: This device uses a sliding position locking mechanism within a slide rail to work with a quick-locking and disassembly mounting base assembly. It can flexibly adjust the position of the mounting base assembly according to the mounting hole spacing of different specifications of overvoltage protection modules (such as 1-wire, 2-wire, or customized hole spacing modules), without the need to re-drill holes or replace the entire mounting plate. Furthermore, the mounting base assembly enables tool-free quick assembly and disassembly via L-shaped claws, effectively solving the problems of poor compatibility and cumbersome maintenance operations of existing devices. At the same time, it avoids the situation where screw installation in confined spaces can easily scratch surrounding cables or components, significantly improving equipment maintenance efficiency and operational safety. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the slide rail structure in this utility model; Figure 3 This is a schematic diagram of the cross-section of the slide rail in this utility model; Figure 4 This is a schematic diagram of the cross-section of the mounting base assembly in this utility model; Figure 5 This is a structural schematic diagram showing the location of the mounting holes in the mounting base assembly of this utility model.

[0013] In the picture: 1. Slide rail; 101. Baffle; 2. Position locking mechanism; 201. Guide shaft; 202. Wedge block; 203. First limiting plate; 204. Slider; 205. First spring; 206. Third limiting plate; 207. Limiting protrusion; 208. Wedge locking block; 209. Third spring; 210. First protrusion; 3. Mounting base assembly; 301. Housing; 302. Limiting block; 303. Second spring; 304. L-shaped claw; 305. Rotating shaft; 306. Mounting hole. Detailed Implementation

[0014] 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 scope of protection of the present utility model.

[0015] Example: The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a circuit device with overvoltage protection, including a slide 1, a position locking mechanism 2 is provided in the slide 1, and a mounting base assembly 3 is engaged at the end of the position locking mechanism 2 away from the slide 1.

[0017] like Figure 1-2 As shown, baffles 101 are provided at both ends of the slide rail 1. The baffles 101 at both ends are fixedly connected by bolts. A bolt for fixing device is provided at one end of the slide rail 1. The main guide rail of the slide rail 1 is fixed on the preset installation position on the inner wall of the electrical cabinet and is tightened by the bolt (with anti-loosening washer) at one end of the slide rail 1 to ensure that the guide rail fits against the cabinet wall.

[0018] like Figure 3As shown, the position locking mechanism 2 includes a button assembly and a locking assembly. The locking assembly is provided with a wedge-shaped locking block 208 for limiting the button assembly. The button assembly includes a guide shaft 201. Two wedge-shaped blocks 202 are provided at one end of the guide shaft 201 near the slide rail 1. The outer walls of the two wedge-shaped blocks 202 are processed into wedge-shaped surfaces that are adapted to the wedge-shaped locking block 208, and the inclination direction of the wedge-shaped surfaces corresponds to the contact end of the wedge-shaped locking block 208. A first limiting plate 203 is provided in the middle of the guide shaft 201, and a reset assembly is provided at the other end of the guide shaft 201. The reset assembly includes a slider 204, which is embedded in the sliding groove of the slide rail 1 to ensure that the first protrusion 210 is not stuck to the inner wall of the sliding groove. The slider 204 is provided with a limiting first protrusion 210 on the side near the wedge block 202. The slide rail 1 is provided with a sliding groove adapted to the sliding of the first protrusion 210. The middle part of the slider 204 is provided with a hole for the guide shaft 201 to pass through. The part of the guide shaft 201 located between the slider 204 and the first limiting plate 203 is fitted with a first spring 205. The end of the first spring 205 away from the slide rail 1 is provided with a third limiting plate 206. Wedge-shaped locking blocks 208 are symmetrically arranged on both sides of the button assembly to limit the wedge-shaped block 202. The end of the wedge-shaped locking block 208 near the wedge-shaped block 202 is an inclined structure that fits against the wedge-shaped surface of the wedge-shaped block 202. The axial locking of the wedge-shaped block 202 is achieved by the contact of the wedge-shaped surface. The slide 1 has a contraction cavity corresponding to both ends of the wedge-shaped locking block 208. A third spring 209 is connected between the wedge-shaped locking block 208 and the inner wall of the contraction cavity. The opening of the contraction cavity is fixed with a positioning pin to ensure that the wedge-shaped locking block 208 can extend and retract in the horizontal direction. The end of the third limiting plate 206 away from the slide 1 is provided with a limiting protrusion 207 that engages with the mounting base assembly 3.

[0019] like Figure 4-5 As shown, the mounting base assembly 3 includes a housing 301, and a limiting block 302 is provided inside the housing 301. The upper and lower ends of the limiting block 302 are connected to a second spring 303. The ends of the two second springs 303 away from the limiting block 302 are connected to L-shaped claws 304. A rotating shaft 305 passes through the middle of a single L-shaped claw 304. The two ends of the rotating shaft 305 are rotatably connected to the inner walls on both sides of the housing 301, pushing the housing 301 until the limiting protrusion 207 is fully embedded in the slot. At this time, under the elastic force of the second spring 303, the engaging end of the L-shaped claw 304 is in contact with the side edge of the limiting protrusion 207. After assembly, the mounting base assembly can slide along the slide 1. A mounting hole 306 is provided on the side of the housing 301 away from the slide 1.

[0020] Working principle: The overvoltage protection module is fixed through the mounting hole 306 of the mounting base assembly 3. After the module's wiring terminals are connected to the wiring in the electrical cabinet, the device is in standby mode. The wedge block 202 and the wedge locking block 208 of the position locking mechanism 2 are in contact. The guide shaft 201 is in the "extended" state under the preload of the first spring 205 to ensure the stability of the position of the mounting base assembly 3. The wedge surface of the wedge block 202 presses against the wedge locking block 208, causing the third spring 209 to compress. When the wedge block 202 moves between the wedge locking blocks 208, the third spring 209 resets, and the wedge locking block 208 is engaged in the positioning groove of the wedge block 202 to achieve axial locking. Press the end of the guide shaft 201 with your finger, and the wedge block 202 continues to move inward. The wedge surface presses the wedge locking block 208 again, releasing the lock. The first spring 205 resets, driving the mounting base assembly 3 back to its initial position. Pinch the L-shaped claws 304 on both sides of the conversion assembly 3 and press down gently to remove the conversion assembly 3 as a whole. Select the corresponding number of conversion assemblies 3 according to the mounting hole spacing of the new module. After connecting the protector mounting hole with the mounting hole 306 inside the conversion assembly 3 with screws, re-clamp them to complete the replacement.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0022] In this specification, the illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples.

Claims

1. A circuit device with overvoltage protection, characterized in that, include: The slide (1) is provided with a plurality of position locking mechanisms (2), and the end of the position locking mechanism (2) away from the slide (1) is fitted with a mounting base assembly (3). Each of the position locking mechanisms (2) includes a button assembly and a locking assembly, the locking assembly being provided with a wedge-shaped locking block (208) for limiting the position of the button assembly. The mounting base assembly (3) includes a housing (301), a limiting block (302) is provided inside the housing (301), and a second spring (303) is connected to both the upper and lower ends of the limiting block (302). An L-shaped claw (304) is connected to the end of each of the two second springs (303) away from the limiting block (302). A rotating shaft (305) is provided through the middle of each L-shaped claw (304). The two ends of the rotating shaft (305) are rotatably connected to the inner walls of both sides of the housing (301). A mounting hole (306) is provided on the side of the housing (301) away from the slide (1).

2. The circuit device with overvoltage protection according to claim 1, characterized in that, The button assembly includes a guide shaft (201). Two wedge blocks (202) are provided at one end of the guide shaft (201) near the slide (1). The outer walls of the two wedge blocks (202) are processed into wedge surfaces that are adapted to the wedge locking block (208), and the inclination direction of the wedge surfaces corresponds to the contact end of the wedge locking block (208). A first limiting plate (203) is provided in the middle of the guide shaft (201), and a reset assembly is provided at the other end of the guide shaft (201).

3. A circuit device with overvoltage protection according to claim 2, characterized in that, The reset assembly includes a slider (204), which has a first protrusion (210) for limiting the side of the slider (204) near the wedge block (202). The slide rail (1) has a sliding groove adapted to slide the first protrusion (210). The middle part of the slider (204) has a hole for the guide shaft (201) to pass through. The part of the guide shaft (201) between the slider (204) and the first limiting plate (203) is fitted with a first spring (205). The end of the first spring (205) away from the slide rail (1) is provided with a third limiting plate (206).

4. A circuit device with overvoltage protection according to claim 3, characterized in that, The third limiting plate (206) is provided with a limiting protrusion (207) at the end away from the slide (1) to engage with the mounting bracket assembly (3).

5. A circuit device with overvoltage protection according to claim 1, characterized in that, The wedge-shaped locking blocks (208) are symmetrically arranged on both sides of the button assembly to limit the wedge-shaped blocks (202). The end of the wedge-shaped locking blocks (208) near the wedge-shaped blocks (202) is an inclined structure that fits against the wedge-shaped surface of the wedge-shaped blocks (202). The axial locking of the wedge-shaped blocks (202) is achieved by the contact of the wedge-shaped surfaces. The slide (1) has a contraction cavity corresponding to both ends of the wedge-shaped locking blocks (208). A third spring (209) is connected between the wedge-shaped locking blocks (208) and the inner wall of the contraction cavity.

6. A circuit device with overvoltage protection according to claim 5, characterized in that, The slide (1) is provided with baffles (101) at both ends, and the baffles (101) at both ends are fixedly connected by bolts. One end of the slide (1) is provided with bolts for fixing devices.

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