Anti-pulling wire inlet structure

Abstract

The utility model relates to the technical field of high and low voltage switch cabinet inlet wire stretching prevention, and discloses an anti-pulling inlet wire structure, which comprises a fixed plate, a stretching prevention mechanism, a buffer mechanism and a protective cover, and is characterized in that the stretching prevention mechanism comprises a shell, and a first screw rod is rotatably arranged at the lower end of the interior of the shell; and the peripheries of the two sides of the first lead screw are sleeved with first connecting plates in a threaded mode, first fixing rings are fixedly arranged on the upper sides of the front ends and the rear ends of the two first connecting plates correspondingly, the buffering mechanism comprises two sliding blocks, two second lead screws, two fixing blocks and a rubber ring, and second fixing columns are fixedly arranged at the front ends of the two sliding blocks correspondingly. According to the utility model, the handle is rotated to drive the first screw rod to rotate, the first screw rod drives the two first connecting plates to get close to each other, and the two first connecting plates respectively drive the two first fixing rings to get close to each other, so that the wire is clamped, and the pressure of the weight of the wire itself on the joint is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-stretching of incoming wires of high and low voltage switch cabinets, in particular to an anti-pulling incoming wire structure. Background Art

[0002] As the name suggests, high and low voltage switchgear is equipment for connecting high-voltage or low-voltage cables. Generally, power supply bureaus and substations use high-voltage cabinets, which are then stepped down by transformers to low-voltage cabinets, and then to distribution boxes for various electricity users. The inside is nothing more than some protective devices such as switches and circuit breakers assembled into one electrical equipment. Cables are usually connected to the internal components from the line inlets opened around the high and low voltage switchgear.

[0003] The existing patent (publication number: CN220190134U) discloses that "the utility model discloses an incoming line structure of a high and low voltage switch cabinet, and the key points of its technical solution are: including a mounting plate, a connecting hole is opened on one side of the mounting plate, and an incoming line box is fixedly installed on one side of the mounting plate, and the left and right sides of the incoming line box are both provided with incoming line holes, and the incoming line holes and the connecting holes are at the same horizontal position; a buffer assembly, the buffer assembly is arranged inside the incoming line box, and is used to buffer the cable when it is subjected to external force, and one end of the cable is respectively passed through the incoming line hole, the fixed arc plate, the fixed ring and the connecting hole by opening the protective cover, and then connected to the inside of the switch cabinet, and then the rotating bolt drives the fixed arc plate to tightly clamp the cable, and under the elastic force of the first spring, the second spring and the tension spring, a greater buffering effect is played on the other connecting block, thereby greatly reducing the tension at the fixing point of the cable and the incoming line mechanism, increasing the stability of the incoming line mechanism, and reducing the wear on the cable at the same time. " In the process of realizing the present utility model, the inventors found that the prior art had the following problems: 1. The buffering function of the device needs to be determined in advance before the line is fixed. If the staff makes a mistake in judgment, the line will still be transmitted to the connection point when it is pulled; 2. After the device fixes the wire, one end of the wire remains fixed and the other end hangs down directly. After a long time, cracks are more likely to form in the middle. Therefore, those skilled in the art provide an anti-pull wire entry structure to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an anti-pull line entry structure, which drives a No. 1 screw rod to rotate by turning a handle, and the No. 1 screw rod drives two No. 1 connecting plates to approach each other, and the two No. 1 connecting plates respectively drive two No. 1 fixing rings to approach each other, clamping the wires, which is beneficial to reducing the pressure of the line itself on the connection. Through the spring and the No. 2 fixing column, a buffer distance is provided for the line, which is beneficial to prevent the connection from loosening or falling off due to sudden pulling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-pull wire inlet structure, comprising a fixing plate, an anti-stretching mechanism, a buffer mechanism, a wire and a protective cover, the anti-stretching mechanism comprising a shell, a No. 1 screw rod is rotatably arranged at the lower end of the inner part of the shell, a No. 1 connecting plate is threadedly sleeved around both sides of the No. 1 screw rod, and a No. 1 fixing ring is fixedly arranged on the upper sides of the front and rear ends of the two No. 1 connecting plates;

[0006] The buffer mechanism comprises a No. 2 fixing ring, two sliders, two No. 2 screw rods, two fixing blocks and a rubber ring, the front ends of the two sliders are fixedly provided with No. 2 fixing columns, the front ends of the two sliders and the inner front ends of the two fixing blocks are fixedly provided with springs, the front ends of the two No. 2 fixing columns are fixedly provided with connecting blocks, the interiors of the two connecting blocks are slidably provided with No. 2 connecting plates, the opposite sides of the two No. 2 connecting plates are fixedly provided with four elastic ropes, and the opposite sides of the eight elastic ropes are fixedly provided on both sides of the rubber ring;

[0007] Through the above technical solution, when the device is in use, the wires are passed through the through holes of the shell and the fixing plate, and then the No. 1 screw is driven to rotate by turning the handle, and the No. 1 screw drives the two No. 1 connecting plates to approach each other, and the two No. 1 connecting plates respectively drive the two No. 1 fixing rings to approach each other to clamp the wires, which is beneficial to reduce the pressure of the line's own weight on the connection, and is beneficial to prevent the line from loosening due to the pulling of its own weight. The wires are then bent into an S shape and fixed between the two No. 2 fixing rings. The spring and the No. 2 fixing column are used to prevent the connection from loosening due to pulling. In addition, the rubber ring and the elastic rope can prevent the line from excessive bending.

[0008] Furthermore, the fixing plate is fixedly arranged at the rear end of the shell, and the protective cover is slidably arranged at the upper end of the shell;

[0009] Through the above technical solution, the fixing plate can facilitate installation of the device at a required location, and the protective cover can facilitate confirmation of the internal situation during wiring and prevent dust from entering the interior.

[0010] Furthermore, the two sliding blocks are slidably arranged inside the two fixed blocks respectively, and through holes are provided in the middle of the fixed plate and the front end of the shell;

[0011] The above technical solution is helpful for installing the second screw rod and for the line to pass through the device.

[0012] Furthermore, the thread mirror image around the No. 1 screw rod is provided with two sections, and the two No. 1 connecting plates are respectively threadedly sleeved around the two sections of thread;

[0013] Through the above technical solution, the threads at both ends facilitate the No. 1 connecting plate to drive the two No. 1 fixing rings to approach each other;

[0014] Furthermore, a handle No. 1 is fixedly provided on one side of the No. 1 screw rod, and a handle No. 2 is fixedly provided on the sides of the two No. 2 screw rods that are away from each other;

[0015] Through the above technical solution, the user can more easily rotate the No. 1 screw rod and the No. 2 screw rod through the No. 1 handle and the No. 2 handle.

[0016] Furthermore, the two No. 2 screw rods are respectively threadedly sleeved inside the two sliders, and the two No. 2 fixing rings are fixedly arranged on opposite sides of the two No. 2 screw rods, and the two No. 2 fixing rings are fixedly arranged on opposite sides of the two No. 2 fixing rings;

[0017] Through the above technical solution, the two No. 2 screw rods can help drive the two No. 2 fixing rings closer to each other to fix the line, and the rubber layer can help increase friction to fix the wire more firmly.

[0018] Furthermore, two convex grooves are fixedly provided at the inner lower end of the shell, and a No. 1 fixing column is fixedly provided at both sides of the inner lower end of the shell;

[0019] Through the above technical solution, through the two convex grooves and the two No. 1 fixing columns, it is helpful to make the two No. 1 connecting plates move more stably and fix the lines more firmly.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes an anti-pull line entry structure. When the device is in use, the No. 1 screw rod is rotated to drive the No. 1 connecting plate and the No. 1 fixing ring to approach each other, so as to fix the line, which is beneficial to prevent the weight of the line itself from pulling the connection, causing the connection to become loose or deformed. After being fixed, the line is bent into an S shape and then fixed in two No. 2 fixing rings. The spring and the No. 2 fixing column are used to provide a buffer distance for the line, which is beneficial to prevent the connection from becoming loose or falling off due to sudden pulling, and the wires used for buffering are visible, which is beneficial for users to adjust according to actual conditions.

[0022] 2. The utility model proposes an anti-pull wire entry structure. When in use, the device fixes the wire in a rubber ring and fixes it through elastic ropes on both sides and a No. 2 connecting plate. This is beneficial for allowing the wire to have a certain amount of room for movement after being fixed, preventing one part from being fixed while shaking and causing cracking, thereby increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is an axonometric schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-section of the utility model;

[0025] Figure 3 It is an axonometric schematic diagram of the buffer mechanism of the utility model;

[0026] Figure 4 It is an axonometric schematic diagram of the buffer mechanism of the utility model in the open state.

[0027] Legend:

[0028] 1. Fixed plate; 2. Anti-stretching mechanism; 3. Buffer mechanism; 4. Protective cover; 201. Outer shell; 202. No. 1 fixed ring; 203. No. 1 connecting plate; 204. No. 1 fixed column; 205. Convex groove; 206. No. 1 screw rod; 207. No. 1 handle; 301. No. 2 fixed ring; 302. Rubber layer; 303. Fixed block; 304. No. 2 handle; 305. Spring; 306. No. 2 fixed column; 307. Slider; 308. No. 2 screw rod; 309. Connecting block; 310. No. 2 connecting plate; 311. Rubber ring; 312. Elastic rope. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-4 , the utility model provides an embodiment: an anti-pull wire entry structure, including a fixing plate 1, an anti-stretching mechanism 2, a buffer mechanism 3 and a protective cover 4, the anti-stretching mechanism 2 includes a shell 201, which is conducive to installing fixed parts, and a No. 1 screw rod 206 is rotatably arranged at the lower end of the inner part of the shell 201, which is conducive to driving two No. 1 connecting plates 203 to approach each other, and a No. 1 connecting plate 203 is threadedly sleeved around the two sides of the No. 1 screw rod 206, which is conducive to driving four No. 1 fixing rings 202 to approach each other in pairs, and the upper sides of the front and rear ends of the two No. 1 connecting plates 203 are fixedly provided with No. 1 fixing rings 202, which is conducive to fixing the wires;

[0031] The buffer mechanism 3 includes a No. 2 fixing ring 301, two sliders 307, two No. 2 screw rods 308, two fixing blocks 303 and a rubber ring 311. The front ends of the two sliders 307 are fixedly provided with No. 2 fixing columns 306. Springs 305 are fixedly provided between the front ends of the two sliders 307 and the inner front ends of the two fixing blocks 303, which is conducive to pulling the pulled wires back to their original positions. The front ends of the two No. 2 fixing columns 306 are fixedly provided with connecting blocks 309, which is conducive to installing No. 2 connecting plates 310. No. 2 connecting plates 310 are slidably provided inside the two connecting blocks 309, which is conducive to installing elastic ropes 312. Four elastic ropes 312 are fixedly provided on the opposite sides of the two No. 2 connecting plates 310, and the opposite sides of the eight elastic ropes 312 are fixedly provided on both sides of the rubber ring 311, which is conducive to providing a space for the wires to move.

[0032] The fixing plate 1 is fixedly arranged at the rear end of the shell 201, which is conducive to fixing the device where it is needed. The protective cover 4 is slidably arranged at the upper end of the shell 201, which is conducive to opening for observation and convenient for wire entry. The two sliders 307 are respectively slidably arranged inside the two fixing blocks 303, which is conducive to installing the second screw rod 308. Through holes are provided in the middle of the fixing plate 1 and the front end of the shell 201, which is conducive to the passage of wires. The mirror image of the thread around the No. 1 screw rod 206 is arranged with two sections, which is conducive to the two No. 1 connecting plates 203 approaching each other at the same time. The two No. 1 connecting plates 203 are respectively threadedly sleeved around the two sections of thread, which is conducive to driving the No. 1 fixing ring 202 to approach each other. A No. 1 screw rod 206 is fixedly arranged on one side. The handle 207 is conducive to rotating the No. 1 screw rod 206. A No. 2 handle 304 is fixedly set on the side where the two No. 2 screw rods 308 are away from each other. The two No. 2 screw rods 308 are respectively threadedly sleeved on the inside of the two sliders 307. A No. 2 fixing ring 301 is fixedly set on the opposite side of the two No. 2 screw rods 308, which is conducive to fixing the wires. A rubber layer 302 is fixedly set on the opposite side of the two No. 2 fixing rings 301, which is conducive to preventing increased friction and making the fixation more secure. Two convex grooves 205 are fixedly set on the inner lower end of the shell 201, and No. 1 fixing columns 204 are fixedly set on both sides of the inner lower end of the shell 201, which is conducive to making the two No. 1 connecting plates 203 more stable during movement.

[0033] Working principle: When the device is in use, the No. 1 screw rod 206 is driven to rotate by turning the No. 1 handle 207, and the No. 1 screw rod 206 drives the two No. 1 connecting plates 203 to approach each other, and the two No. 1 connecting plates 203 respectively drive the two No. 1 fixing rings 202 to approach each other, so as to fix the wire to prevent the connection from loosening due to pulling, and then the wire is bent into an S shape, and one section of it is fixed in the two No. 2 fixing rings 301. The spring 305 and the No. 2 fixing column 306 are used to prevent the connection from loosening due to sudden pulling, and a buffer space is provided. Then the latter section of the wire is fixed in the rubber ring 311, and a movable space can be provided by the elastic rope 312 and the No. 2 connecting plate 310 to prevent one end from being fixed and the other side from shaking, which may cause cracks in the middle.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulling-proof wire inlet structure, comprising a fixing plate (1), an anti-stretching mechanism (2), a buffer mechanism (3) and a protective cover (4), characterized in that: The anti-stretching mechanism (2) comprises a housing (201), a first screw rod (206) is rotatably provided at the lower end of the housing (201), a first connecting plate (203) is threadedly sleeved around both sides of the first screw rod (206), and a first fixing ring (202) is fixedly provided on the upper sides of the front and rear ends of the two first connecting plates (203); The buffer mechanism (3) comprises a No. 2 fixing ring (301), two sliders (307), two No. 2 screw rods (308), two fixing blocks (303) and a rubber ring (311); the front ends of the two sliders (307) are fixedly provided with No. 2 fixing columns (306); springs (305) are fixedly provided between the front ends of the two sliders (307) and the inner front ends of the two fixing blocks (303); the front ends of the two No. 2 fixing columns (306) are fixedly provided with connecting blocks (309); the interiors of the two connecting blocks (309) are slidably provided with No. 2 connecting plates (310); four elastic ropes (312) are fixedly provided on opposite sides of the two No. 2 connecting plates (310); and the opposite sides of the eight elastic ropes (312) are fixedly provided on both sides of the rubber ring (311).

2. The anti-pull wire inlet structure according to claim 1, characterized in that: The fixing plate (1) is fixedly arranged at the rear end of the outer shell (201), and the protection cover (4) is slidably arranged at the upper end of the outer shell (201).

3. The anti-pull wire inlet structure according to claim 1, characterized in that: The two sliding blocks (307) are respectively slidably arranged inside the two fixed blocks (303), and through holes are provided in the middle of the fixed plate (1) and the front end of the outer shell (201).

4. The anti-pull wire inlet structure according to claim 1, characterized in that: The thread mirror image around the No. 1 screw rod (206) is provided with two sections, and the two No. 1 connecting plates (203) are respectively threadedly sleeved around the two sections of the thread.

5. The anti-pull wire inlet structure according to claim 1, characterized in that: A first handle (207) is fixedly provided on one side of the first screw rod (206), and a second handle (304) is fixedly provided on the sides of the two second screw rods (308) that are away from each other.

6. The anti-pull wire inlet structure according to claim 1, characterized in that: The two second screw rods (308) are respectively threadedly sleeved inside the two sliders (307), and a second fixing ring (301) is fixedly arranged on the opposite side of the two second screw rods (308), and a rubber layer (302) is fixedly arranged on the opposite side of the two second fixing rings (301).

7. The anti-pull wire inlet structure according to claim 1, characterized in that: Two convex grooves (205) are fixedly provided at the inner lower end of the shell (201), and No. 1 fixing columns (204) are fixedly provided at both sides of the inner lower end of the shell (201).

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