Building wiring device for relieving line tension

Abstract

The utility model relates to the technical field of wiring devices, in particular to a building wiring device for relieving line tension, which comprises a wiring device mechanism, the wiring device mechanism comprises a first mounting rack and a second mounting rack, and a plurality of line tension relieving mechanisms are clamped between the first mounting rack and the second mounting rack. And the plurality of line tension relieving mechanisms are matched with one another in an inserting manner. According to the utility model, the circuit tension relieving mechanism can be easily clamped on the mounting rack I through the clamping unit for fixation, so that personnel can conveniently fix the circuit tension relieving mechanism at a specified position, and the mounting convenience is effectively improved; and a strip-shaped groove III of one line tension relieving mechanism can be quickly clamped and matched with a clamping unit of the other line tension relieving mechanism, so that the two line tension relieving mechanisms are fixed together, a worker can conveniently fix lines in a centralized manner, and the installation efficiency and convenience of the wiring device mechanism are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring devices, and in particular to a building wiring device for alleviating line tension. Background Art

[0002] Building wiring devices are used to fix the lines together to prevent them from sagging and shaking, which can easily cause damage. Therefore, the lines in existing buildings are fixed with building wiring devices. Fixing the lines with wiring devices can neatly classify the lines, making it easier for personnel to detect, maintain and manage them. Using wiring devices can prevent the lines from crossing and entangled, and sagging, and provide clear line identification and ultra-high recognition. Wiring devices can prevent the lines from bending to effectively free up space, and prevent the lines from bending and crossing and occupying too much space. Wiring devices are widely used.

[0003] The wiring boards of existing wiring devices are usually fixed with screws, which is time-consuming and labor-intensive, reducing the efficiency of line installation. In addition, due to the principle of thermal expansion and contraction, when the weather is cold, the lines will shrink and become tight, which can easily cause breakage or deformation of the wires. Existing wiring devices cannot effectively alleviate the problem of tight lines. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a building wiring device for relieving line tension. The line tension relief mechanism can be easily clamped on the mounting frame one through the clamping unit for fixing, which is convenient for personnel to fix the line tension relief mechanism in a specified position, effectively improving the convenience of installation. The strip groove three of one line tension relief mechanism can be quickly clamped with the clamping unit of another line tension relief mechanism, so that the two line tension relief mechanisms are fixed together, which is convenient for personnel to centrally fix the lines, and effectively improving the installation efficiency and convenience of the wiring device mechanism. The clamping block two on the mounting frame two can be clamped with the strip groove three on the line tension relief mechanism to fix the mounting frame two to the line tension relief mechanism, and then the mounting frame one is fixed with the line tension relief mechanism, so that the interior between several line tension relief mechanisms can be closed, effectively reducing the influence of moisture, dust and other environmental factors on the internal parts of the line tension relief mechanism, accelerating the damage of the parts, and improving the protection of the parts.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A building wiring device for relieving line tension, comprising a wiring device mechanism, wherein the wiring device mechanism comprises a first mounting frame and a second mounting frame, wherein a plurality of line tension relief mechanisms are clamped between the first mounting frame and the second mounting frame, and the plurality of line tension relief mechanisms are plugged and matched with each other;

[0007] The outer wall of the mounting frame is provided with a strip groove 1 near both sides, and the mounting frame is fixedly connected with a clamping block 1 at an inner wall of one side of the strip groove near one end. The line tension relief mechanism includes a wiring board, and the outer wall of one side of the wiring board is provided with a strip groove 4 near both sides, and the inner walls of both sides of the strip groove 4 are provided with strip grooves 5, and a clamping unit is fixedly connected inside the strip groove 4, and the clamping unit includes a clamping block 4, and the outer walls of both sides of the clamping block 4 are fixedly connected with a square block 1 near the center. The outer wall of the square block 1 is slidably plugged into the strip groove 5, and the outer wall of the clamping block 4 is slidably plugged into the inside of the strip groove 4. A spring 2 is fixedly connected between the outer wall of the strip groove 4 and the outer wall of the clamping block 4, and the outer wall of one end of the clamping block 4 is plugged into the clamping block 1.

[0008] Furthermore, a strip groove three is provided near both sides of the outer wall of one side of the wiring board, and a clamp block three is fixedly connected near one end of the inner wall of one side of the strip groove three.

[0009] Furthermore, the outer wall of the second mounting frame is provided with a second strip groove near the outer walls on both sides, a second clamping block is slidably inserted inside the second strip groove, a spring is fixedly connected between the outer wall of the second clamping block and the inner wall of the second strip groove, a circular notch is provided on the outer walls of both sides of the second mounting frame near the center, a round block is fixedly connected to the outer wall of one side of the clamping block near the center, and the outer wall of the round block is slidably inserted into the circular notch.

[0010] Furthermore, a round block 2 is fixedly connected to the outer wall of one side of the clamping block 4 near the center, a round notch 2 is opened on the inner wall of one side of the strip groove 4 near the center, and the outer wall of the round block 2 is slidably plugged into the round notch 2.

[0011] Further, two flexion and extension units are fixedly connected at equal intervals near the center of the wiring board, and circular notches three are provided on the outer walls of both sides of the wiring board near the flexion and extension units. The flexion and extension units include a fixed block, and the outer walls at both ends of the fixed block are respectively fixedly connected to the inner walls on both sides of the wiring board near the center. A square groove one is provided on the outer wall of the fixed block near the center, and a threading rack two is slidably inserted in the square groove one, and a spring four is fixedly connected between the outer wall of the threading rack two and the inner wall of the square groove one. Square grooves two are provided on the outer wall of the fixed block near the center, and a threading rack one is slidably inserted in the square groove two, and a spring three is fixedly connected between the outer wall of the threading rack one and the inner wall of the square groove two. The outer wall of the threading rack one is fixedly connected with square block two, and a fixed frame three is fixedly connected between the two adjacent flexion and extension units inside the wiring board, the square two is slidably inserted into the fixed frame three, and the outer wall of the threading rack one is fixedly connected with an extrusion unit.

[0012] Further, a square notch is provided at a position on one side of the inner wall of the wiring board near the circular notch three, and strip grooves six are provided on the inner walls on both sides of the square notch, the extrusion unit comprises a telescopic plate, the outer wall of the telescopic plate is slidably plugged into the square notch, the outer walls on both sides of the telescopic plate are fixedly connected with blocks three near the center position, the outer walls of the blocks three are slidably plugged into the strip grooves six, the outer wall of one end of the telescopic plate is fixedly connected with a round rod one, the outer wall of the round rod one is slidably plugged into the outer wall of the threading rack one, the outer wall of one end of the round rod one is fixedly connected with an arc block, a spring five is fixedly connected between the outer wall of the round rod one and the outer wall of the threading rack one, the outer wall of one side of the telescopic plate is fixedly connected with a card block five, the outer wall of the threading rack one is fixedly connected to a limiting unit, the limiting unit comprises a fixed frame one, a tooth plate is slidably plugged into the inside of the fixed frame one, a spring six is ​​fixedly connected between the outer wall of the tooth plate and the inner wall of the fixed frame one, and the outer wall of the card block five is card-engaged with the tooth plate.

[0013] Furthermore, a round rod two is fixedly connected to the outer wall of the tooth plate near one side, a fixing frame two is fixedly connected between the outer walls of two adjacent round rods, a strip groove seven is opened on the inner wall of the wiring board near one side of the square notch, and the outer walls at both ends of the fixing frame two are slidably plugged into the strip grooves seven on the inner walls of the wiring board on both sides.

[0014] Beneficial effects of this utility:

[0015] 1. A plurality of line tension relief mechanisms are connected between the mounting frame 1 and the mounting frame 2, and the plurality of line tension relief mechanisms are plugged and matched, and a strip groove 1 is provided on the outer wall of the mounting frame 1 near both sides, and the mounting frame 1 is fixedly connected with a clamping block 1 on the inner wall of one side of the strip groove 1 near one end, and the line tension relief mechanism mainly includes a wiring board, and a strip groove 4 is provided on the outer wall of one side of the wiring board near both sides, and a strip groove 5 is provided on the inner walls of both sides of the strip groove 4, and a clamping block is fixedly connected inside the strip groove 4 The unit mainly includes a card block four, and a square block one is fixedly connected to the outer wall of both sides of the card block four near the center. The outer wall of the square block one is slidably plugged into the strip groove five, and the outer wall of the card block four is slidably plugged into the inside of the strip groove four, and a spring two is fixedly connected between the outer wall of the strip groove four and the outer wall of the card block four. The outer wall at one end of the card block four is plugged into the card block one. The line tension relief mechanism can be easily clamped on the mounting frame one for fixing through the card unit, which is convenient for personnel to fix the line tension relief mechanism at a specified position, effectively improving the convenience of installation.

[0016] 2. Strip grooves three are provided on the outer wall of one side of the wiring board near both sides, and a clamping block three is fixedly connected to the inner wall of one side of the strip groove three near one end. The strip groove three of one line tension relief mechanism can be quickly engaged with the clamping unit of another line tension relief mechanism, so that the two line tension relief mechanisms are fixed together, which is convenient for personnel to centrally fix the lines and effectively improves the installation efficiency and convenience of the wiring device mechanism.

[0017] 3. Two strip grooves are provided on the outer wall of the second mounting frame near the outer walls on both sides, and two clamping blocks are slidably inserted in the second strip grooves, a spring is fixedly connected between the outer wall of the second clamping block and the inner wall of the second strip groove, and a circular notch is provided on the outer wall of both sides of the second mounting frame near the center, and a round block is fixedly connected to the outer wall of one side of the clamping block near the center, and the outer wall of the round block is slidably inserted into the circular notch, and the clamping block on the second mounting frame can be clamped with the three strip grooves on the line tension relief mechanism to fix the second mounting frame to the line tension relief mechanism, and then the mounting frame is fixed to the line tension relief mechanism, so that the interior between several line tension relief mechanisms can be closed, effectively reducing the influence of moisture, dust and other environmental factors on the internal parts of the line tension relief mechanism, accelerating the damage of the parts, and improving the protection of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of this utility;

[0020] Figure 2 This is a schematic diagram of the structure of the mounting frame in the present utility;

[0021] Figure 3 This is a schematic diagram of the structure of the second mounting frame in this utility;

[0022] Figure 4 It is a schematic diagram of the structure of the line tension relief mechanism in the present utility model;

[0023] Figure 5 It is a schematic diagram of the wiring board structure in this utility;

[0024] Figure 6 This is a schematic diagram of the structure of the card connection unit in the present utility model;

[0025] Figure 7 It is a schematic diagram of the partial cross-sectional structure of the line tension relief mechanism in the present utility model;

[0026] Figure 8 It is a schematic diagram of the structure at point a of the line tension relief mechanism in the present invention.

[0027] In the figure: 100, wiring device mechanism; 110, mounting frame 1; 111, strip groove 1; 112, clamping block 1; 120, mounting frame 2; 121, strip groove 2; 123, clamping block 2; 124, spring 1; 125, circular notch 1; 126, round block 1; 200, line tension relief mechanism; 210, wiring board; 211, strip groove 3; 212, clamping block 3; 213, strip groove 4; 214, strip groove 5; 215, circular notch 2; 216, circular notch 3; 217, square notch; 218, strip groove 6; 219, strip groove 7; 220, clamping unit; 221, clamping block 4; 222, block one; 223, spring two; 224, round block two; 230, flexion and extension unit; 231, fixed block; 232, square groove one; 234, square groove two; 235, threading frame one; 236, spring three; 237, threading frame two; 238, spring four; 239, block two; 240, extrusion unit; 241, telescopic plate; 242, block three; 243, round rod one; 244, arc block; 245, spring five; 246, clamping block five; 250, limiting unit; 251, fixed frame one; 252, tooth plate; 253, spring six; 254, round rod two; 255, fixed frame two; 260, fixed frame three. DETAILED DESCRIPTION

[0028] The following will be combined with the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical.

[0029] See also Figure 1-8As shown, a building wiring device for relieving line tension includes a wiring device mechanism 100, the wiring device mechanism 100 includes a mounting frame 110 and a mounting frame 2 120, a plurality of line tension relief mechanisms 200 are clamped between the mounting frame 110 and the mounting frame 2 120, and the plurality of line tension relief mechanisms 200 are plugged and matched with each other, a strip groove 111 is provided near both sides of the outer wall of the mounting frame 110, a clamp block 112 is fixedly connected to one end of the inner wall of one side of the strip groove 111 of the mounting frame 110, and the line tension relief mechanism 200 includes a wiring board 210,The outer wall of one side of the wiring board 210 is provided with a strip groove four 213 near the two sides, and the inner walls of the two sides of the strip groove four 213 are provided with a strip groove five 214. The strip groove four 213 is fixedly connected with a card unit 220 inside. The card unit 220 includes a card block four 221. The outer walls of both sides of the card block four 221 are fixedly connected with a block one 222 near the center. The outer wall of the block one 222 is slidably plugged into the strip groove five 214, and the outer wall of the card block four 221 is slidably plugged into the inside of the strip groove four 213. A spring two 223 is fixedly connected between the outer wall of the strip groove four 213 and the outer wall of the card block four 221. The outer wall of one end of the card block four 221 is plugged into the card block one 112. The line can be easily tightened and relieved through the card unit 220. The release mechanism 200 is connected to the installation frame 110 for fixing, which is convenient for personnel to fix the line tension relief mechanism 200 at a specified position, effectively improving the convenience of installation. The outer wall of one side of the wiring board 210 is provided with a strip groove 3 211 near the two sides, and the inner wall of one side of the strip groove 3 211 is fixedly connected with a clamping block 3 212 near one end. The strip groove 3 211 of one line tension relief mechanism 200 can be quickly connected with the clamping unit 220 of another line tension relief mechanism 200 through the strip groove 3 211, so that the two line tension relief mechanisms 200 are fixed together, which is convenient for personnel to centrally fix the lines, effectively improving the installation efficiency and convenience of the wiring device mechanism 100, and the outer wall of the installation frame 2 120 is provided with strip grooves near the outer walls on both sides. The strip groove 121 is provided with a second card block 123 which is slidably inserted inside the second strip groove 121, and a spring 124 is fixedly connected between the outer wall of the second card block 123 and the inner wall of the second strip groove 121. A circular notch 125 is provided at the outer walls of both sides of the second mounting frame 120 near the center position, and a round block 126 is fixedly connected to the outer wall of one side of the card block 123 near the center position, and the outer wall of the round block 126 is slidably inserted with the circular notch 125. The card block 123 on the second mounting frame 120 can be clamped with the strip groove 3 211 on the line tension relief mechanism 200, so that the second mounting frame 120 is fixed to the line tension relief mechanism 200, and then the mounting frame 110 is fixed to the line tension relief mechanism 200, so that a plurality of line tension relief mechanisms can be tightened. The interior of the tension relief mechanism 200 is sealed, which effectively reduces the influence of humidity, dust and other environmental factors on the internal parts of the line tension relief mechanism 200, accelerates the damage of the parts, and improves the protection of the parts. The outer wall of the clamping block 4 221 is fixedly connected to the position near the center of the side, and the inner wall of the strip groove 4 213 is provided with a circular notch 215 near the center. The outer wall of the circular block 224 is slidably connected with the circular notch 215. By squeezing the circular block 224, the limit between the line tension relief mechanism 200 and the line tension relief mechanism 200, the mounting frame 1 110 or the mounting frame 2 120 can be released to separate them, effectively improving the efficiency and convenience of personnel in disassembling the line tension relief mechanism 200.

[0030] Two flexion and extension units 230 are evenly and fixedly connected at both sides of the wiring board 210 near the center. Circular notches 216 are provided on both sides of the outer walls of the wiring board 210 near the flexion and extension units 230. The flexion and extension units 230 include a fixed block 231. The outer walls of the two ends of the fixed block 231 are respectively fixedly connected to the inner walls of the two sides of the wiring board 210. A square groove 232 is provided on the outer wall of the fixed block 231 near the center. A threading rack 237 is slidably inserted inside the square groove 232. A spring 4 238 is fixedly connected between the outer wall of the threading rack 237 and the inner wall of the square groove 232. A square groove 234 is provided on both sides of the outer wall of the fixed block 231 near the center. A threading rack is slidably inserted inside the square groove 234. A spring 236 is fixedly connected between the outer wall of the threading rack 1 235 and the inner wall of the square groove 234. A block 239 is fixedly connected to the outer wall of the threading rack 1 235. A fixing rack 3 260 is fixedly connected between two adjacent flexion and extension units 230 inside the wiring board 210. The block 239 is slidably plugged with the fixing rack 3 260. The outer wall of the threading rack 1 235 is fixedly connected with an extrusion unit 240. When the line is tight, the line will pull the threading rack 1 235 to move to one side, so that the threading rack 237 slides into the square groove 1 232, so that the tight line fixed by the wiring device mechanism 100 is relieved, the probability of the line being damaged due to tension is reduced, and the protection of the line is effectively improved. The inner wall of the wiring board 210 is close to the circular notch A square notch 217 is provided at one side of the square notch 216, and strip grooves 6 218 are provided on the inner walls on both sides of the square notch 217. The extrusion unit 240 includes a telescopic plate 241, and the outer wall of the telescopic plate 241 is slidably plugged into the square notch 217. The outer walls on both sides of the telescopic plate 241 are fixedly connected with square blocks 3 242 near the center position, and the outer wall of the square block 3 242 is slidably plugged into the strip grooves 6 218. A round rod 1 243 is fixedly connected to the outer wall of one end of the telescopic plate 241, and the outer wall of the round rod 1 243 is slidably plugged into the outer wall of the threading rack 1 235. An arc block 244 is fixedly connected to the outer wall of the round rod 1 243 at one end of the round rod 1 243, and a spring 5 245 is fixedly connected between the outer wall of the round rod 1 243 and the outer wall of the threading rack 1 235. The outer wall of one end of the telescopic plate 241 is fixedly connected to the outer wall of the A clamping block 5 246 is connected, and the outer wall of the threading frame 1 235 is fixedly connected to a limited position unit 250. The limited position unit 250 includes a fixed frame 1 251. A tooth plate 252 is slidably inserted inside the fixed frame 1 251. A spring 6 253 is fixedly connected between the outer wall of the tooth plate 252 and the inner wall of the fixed frame 1 251. The outer wall of the clamping block 5 246 is engaged with the tooth plate 252. By pressing the telescopic plate 241, the arc block 244 squeezes lines of different diameters, and then the clamping block 5 246 is engaged with the tooth plate 252 to fix it, which effectively improves the fixing stability of the line. The outer wall of the arc block 244 is sleeved with an anti-wear pad to effectively prevent the line from being rubbed and accelerate the damage speed of the line. The outer wall of the tooth plate 252 is fixedly connected with a round rod 254 near one side.A fixing frame 255 is fixedly connected between the outer walls of two adjacent round rods 254, and a strip groove 7 219 is provided on the inner wall of the wiring board 210 near the square notch 217. The outer walls of the fixing frame 255 at both ends are respectively slidably plugged into the strip grooves 7 219 on the inner walls of the wiring board 210. By setting the fixing frame 255, the fixing frame 255 can be pulled to move the tooth plate 252 into the fixing frame 1 251, so that the tooth plate 252 is separated from the card block 5 246, and the limit of the telescopic plate 241 is released. The arc block 244 is separated from the line due to the rebound of the spring 5 245, which effectively improves the efficiency of line replacement and disassembly.

[0031] Working principle: During operation, the personnel pass the line through the circular notch 3 216 through the two threading racks 1 235 and the threading rack 2 237, and then pass through the circular notch 3 216 on the other side of the wiring board 210. At the same time, the telescopic plates 241 on both sides of the wiring board 210 are pressed to move in the square notch 217. The telescopic plates 241 are squeezed to drive the arc block 244 to move inside the threading rack 1 235, squeezing the outer wall of the line and fixing it. Because the clamping block 5 246 is clamped with the tooth plate 252 to limit the position, the line tension relief mechanism 2 of the fixed line is released. 00 contacts with the mounting frame 110, the block 421 contacts with the block 112 and is squeezed to move to the specified position in the inner side of the strip groove 413, the outer wall of one end of the block 421 is staggered with the block 112, and the spring 223 rebounds, so that the block 421 is engaged with the block 112, and the mounting frame 110 and the line tension relief mechanism 200 are fixed. The strip groove 3 211 is provided on the line tension relief mechanism 200, and the block 421 can be engaged with the strip groove 3 211, so that the line tension relief mechanism 200 and the line tension relief mechanism 200 can be fixed together. When the personnel hold the installation frame 2 120 to squeeze the outer wall of the line tension relief mechanism 200, the second clamping block 123 is squeezed by the third clamping block 212 to move to the side of the strip groove 2 121 to the specified position, so that the second clamping block 123 enters the strip groove 3 211, and the spring 1 124 rebounds to make the second clamping block 123 and the third clamping block 212 clamped, and the wiring device mechanism 100 is installed. When it is necessary to disassemble the line tension relief mechanism 200, press the round block 126, and the squeezed second clamping block 123 is in the strip groove 3 The second mounting frame 120 is slid in the groove 121 to separate the line tension relief mechanism 200, and the round block 224 is pressed, so that the squeezed card block 4 221 slides inside the strip groove 4 213, so that the card block 4 221 is separated from the card block 3 212 or the card block 1 112. When a single line needs to be replaced, the fixing frame 255 is pressed and moved to one side to move the tooth plate 252 into the fixing frame 1 251. The telescopic plate 241 is released from the limit and rebounded to the original position by the spring 5 245. The arc block 244 releases the squeeze on the line, and the line is replaced.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific characteristic structure materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific characteristic structure materials or features described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above contents are merely examples and explanations of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A building wiring device for relieving line tension, characterized in that: It includes a wiring device mechanism, the wiring device mechanism includes a first mounting frame and a second mounting frame, a plurality of line tension relief mechanisms are clamped between the first mounting frame and the second mounting frame, and the plurality of line tension relief mechanisms are plugged and matched with each other; The outer wall of the mounting frame is provided with a strip groove 1 near both sides, and the mounting frame is fixedly connected with a clamping block 1 at an inner wall of one side of the strip groove near one end. The line tension relief mechanism includes a wiring board, and the outer wall of one side of the wiring board is provided with a strip groove 4 near both sides, and the inner walls of both sides of the strip groove 4 are provided with strip grooves 5, and a clamping unit is fixedly connected inside the strip groove 4, and the clamping unit includes a clamping block 4, and the outer walls of both sides of the clamping block 4 are fixedly connected with a square block 1 near the center. The outer wall of the square block 1 is slidably plugged into the strip groove 5, and the outer wall of the clamping block 4 is slidably plugged into the inside of the strip groove 4. A spring 2 is fixedly connected between the outer wall of the strip groove 4 and the outer wall of the clamping block 4, and the outer wall of one end of the clamping block 4 is plugged into the clamping block 1.

2. A building wiring device for relieving line tension according to claim 1, characterized in that: The outer wall of one side of the wiring board is provided with strip grooves three near both sides, and the inner wall of one side of the strip groove three is fixedly connected with a clamping block three near one end.

3. A building wiring device for relieving line tension according to claim 1, characterized in that: The outer wall of the second mounting frame is provided with two strip grooves near the outer walls on both sides, and a clamping block is slidably inserted inside the second strip groove, and a spring is fixedly connected between the outer wall of the second clamping block and the inner wall of the second strip groove. The outer walls of the second mounting frame are provided with one circular notch near the center position, and a round block is fixedly connected to the outer wall of one side of the clamping block near the center position, and the outer wall of the round block is slidably inserted into the circular notch.

4. A building wiring device for relieving line tension according to claim 1, characterized in that: A round block 2 is fixedly connected to the outer wall of one side of the clamping block 4 near the center, and a round notch 2 is opened on the inner wall of one side of the strip groove 4 near the center, and the outer wall of the round block 2 is slidably plugged into the round notch 2.

5. A building wiring device for relieving line tension according to claim 1, characterized in that: Two flexure and extension units are fixedly connected at equal intervals near the center positions on both sides of the wiring board, and circular notches three are provided on the outer walls of both sides of the wiring board near the positions of the flexure and extension units. The flexure and extension unit comprises a fixed block, and the outer walls at both ends of the fixed block are respectively fixedly connected to the inner walls on both sides of the wiring board. The outer wall of the fixed block is provided with a square groove one near the center position, and a threading rack two is slidably inserted in the square groove one, and a spring four is fixedly connected between the outer wall of the threading rack two and the inner wall of the square groove one. The outer wall of the fixed block is provided with a square groove two near the center positions on both sides, and a threading rack one is slidably inserted in the square groove two, and a spring three is fixedly connected between the outer wall of the threading rack one and the inner wall of the square groove two, and the outer wall of the threading rack one is fixedly connected with a square block two, and a fixed frame three is fixedly connected between the two adjacent flexure and extension units inside the wiring board, and the square block two is slidably inserted into the fixed frame three, and the outer wall of the threading rack one is fixedly connected with an extrusion unit.

6. A building wiring device for relieving line tension according to claim 5, characterized in that: The wiring board is provided with a square notch at a position on one side of the inner wall of the wiring board near the circular notch three, and the inner walls on both sides of the square notch are provided with strip grooves six, and the extrusion unit comprises a telescopic plate, the outer wall of the telescopic plate is slidably plugged into the square notch, and the outer walls on both sides of the telescopic plate are fixedly connected with square blocks three near the center position, and the outer walls of the square blocks three are slidably plugged into the strip grooves six, and the outer wall of one end of the telescopic plate is fixedly connected with a round rod one, and the outer wall of the round rod one is slidably plugged into the outer wall of the threading rack one, and the outer wall of one end of the round rod one is fixedly connected with an arc block, and a spring five is fixedly connected between the outer wall of the round rod one and the outer wall of the threading rack one, and the outer wall of one side of the telescopic plate is fixedly connected with a card block five, and the outer wall of the threading rack one is fixedly connected to a limiting unit, and the limiting unit comprises a fixed frame one, and a tooth plate is slidably plugged into the inside of the fixed frame one, and a spring six is ​​fixedly connected between the outer wall of the tooth plate and the inner wall of the fixed frame one, and the outer wall of the card block five is engaged with the tooth plate.

7. A building wiring device for relieving line tension according to claim 6, characterized in that: A round rod two is fixedly connected to the outer wall of the toothed plate near one side, a fixing frame two is fixedly connected between the outer walls of two adjacent round rods, a strip groove seven is opened on the inner wall of the wiring board near one side of the square notch, and the outer walls at both ends of the fixing frame two are slidably plugged into the strip grooves seven on the inner walls of the wiring board on both sides.

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