Weak current cable connecting device convenient to fix and connecting method thereof

Abstract

The invention relates to the technical field of weak current cables, and discloses a weak current cable connecting device convenient to fix and a connecting method thereof.The weak current cable connecting device comprises a fixing mechanism, the fixing mechanism further comprises a body, the top of the body is fixedly connected with a connecting block, and the top of the connecting block is slidably connected with a plurality of bolts; by utilizing the characteristic that the spring has elasticity, the weak current cable is inserted into the main body, the weak current cable inserted into the main body is in contact with the plurality of sliding blocks, and after the sliding blocks are in contact with the weak current cable, the weak current cable is continuously pushed to move forwards, so that the sliding blocks are subjected to extrusion force; when a cable passes through the sliding block, the sliding block is driven to drive the U-shaped block to slide in the direction of the movable groove, the U-shaped block applies outward thrust to the annular spring, and after the cable passes through the sliding block, the annular spring has elasticity and applies downward thrust to the U-shaped block, so that the cable can be fixed, and the cable fixing device can adapt to cables of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of weak-current cables, and in particular to a weak-current cable connection device and a connection method thereof that are easy to fix. Background Art

[0002] Weak-current cables refer to cables used for security communications, electrical equipment and related weak-current transmission purposes. There is no strict boundary between "wires" and "cables". Products with a small number of cores, small diameters and simple structures are usually called wires, those without insulation are called bare wires, and others are called cables. Cables are an electrical energy or signal transmission device, usually composed of several or several groups of wires. Among them, weak-current cables are commonly used in security communications, electrical equipment and related weak-current transmission purposes. In the installation of weak-current cables, fixing devices are particularly important, which can facilitate the staff to clamp and fix the cables. The size of weak-current cables usually varies according to factors such as the required current and voltage.

[0003] When the ambient temperature changes, the cable material will expand and contract, causing the connection device and the cable to become loose or too tight. Looseness may cause the cable and the connection device to fall off, while overtightening may damage the cable and cause it to rupture. To address the above problems, the following solutions are proposed. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a weak current cable connection device that is easy to fix, including a fixing mechanism, the fixing mechanism also includes a main body, the top of the main body is fixedly connected to a connecting block, and the top of the connecting block is slidably connected to a plurality of bolts;

[0005] The anti-fall mechanism has a plurality of sliding rods slidably connected to the main body, and the ends of the plurality of sliding rods are rotatably connected to ratchets;

[0006] The clamping mechanism has a through groove in the main body, and a plurality of piston cylinders are fixedly connected to the inner wall of the through groove. The plurality of piston cylinders are distributed in an array, and piston blocks are slidably connected to the inner walls of the plurality of piston cylinders.

[0007] Preferably, the fixing mechanism also includes springs 1 respectively sleeved on the outer walls of several bolts, the bottom ends of several springs 1 are fixedly connected to the bolts, and the top ends of several springs 1 are fixedly connected to the bottom of the connecting block. A movable groove is provided in the main body, and under the action of the bolts, the device can be firmly fixed to the specified position. Under the action of spring 1, the vibration generated by the outside world can be absorbed, thereby reducing the impact of external vibration on the cable.

[0008] Preferably, the fixing mechanism also includes several sliders slidably connected to the inner wall of the movable groove, and the sides of the several sliders away from each other are respectively fixedly connected to U-shaped blocks, and annular springs are fixedly connected to the outer walls of the several U-shaped blocks. By utilizing the elastic characteristics of the springs, the weak-current cable is inserted into the main body, and the weak-current cable inserted into the main body contacts the several sliders. Due to the arc-shaped setting of the slider, after the slider contacts the weak-current cable, it continues to push the weak-current cable forward, causing the slider to be subjected to an extrusion force, thereby forcing the slider to drive the U-shaped block to slide in the direction of the movable groove, and then the U-shaped block applies an outward thrust to the annular spring. When the cable passes through the slider, the annular spring is elastic and the annular spring will apply a downward thrust to the U-shaped block, thereby fixing the cable. This can adapt to cables of different sizes. When the weak-current cable is inserted into the main body, the slider will automatically adjust its position according to the size of the cable. Such a design can not only adapt to cables of different sizes without replacing the clamp, but also can apply appropriate extrusion force to the cable according to the changes in thermal expansion and contraction when the cable undergoes thermal expansion and contraction due to temperature changes, thereby improving flexibility and versatility.

[0009] Preferably, the fixing mechanism also includes a rack fixedly connected to the side wall of the U-shaped block, a fixing rod fixedly connected to the side wall of the movable groove, a gear rotatably connected to the outer wall of the fixing rod, the gear is engaged with the rack, and the gear is engaged with the ratchet. The use of the ratchet can ensure the safe locking of the gear, avoid the occurrence of accidental movement, and ensure the stability and reliability of the device when clamping the cable.

[0010] Preferably, the anti-falling mechanism also includes a second spring fixedly connected to the top of the ratchet, and the side of the second spring away from the ratchet is fixedly connected to the inner wall of the movable groove. The ratchet and the second spring work together to force the gear to rotate in only one direction. When the gear rotates, it can drive the ratchet to rotate downward with the sliding rod as the center. Under the action of the second spring, the ratchet that has rotated downward can be pulled back to the meshing position with the teeth on the gear, thereby ensuring that the ratchet is always meshed with the gear.

[0011] Preferably, the anti-falling mechanism also includes a slide groove provided on the outer wall of the slide groove, the outer wall of the slide groove is slidably connected to a ring-shaped slider, the outer wall of the ring-shaped slider is fixedly connected to several handles, and a spring three is sleeved on the outer wall of the slide rod, the right end of the spring three is fixedly connected to the main body, and the left end of the spring three is fixedly connected to the ring-shaped slider. When the cable needs to be removed or replaced with a new cable, the ring-shaped slider is pulled outward by pulling the handle, driving the slide rod to move outward, and after the slide rod moves outward, it drives the ratchet to move outward. At this time, the ratchet no longer engages with the gear, so that the gear is no longer restricted by the ratchet, so that the slider can slide up and down freely, and then the cable is pulled out from the main body, completing the cable removal work, and then the new cable is reinserted into the main body, which provides convenience for replacing the cable and improves the convenience of the device when in use and the efficiency of cable replacement.

[0012] Preferably, the clamping mechanism also includes a push rod fixedly connected to the bottom of the piston block, a connecting rod fixedly connected to the outer wall of the push rod, an end of the connecting rod away from the push rod is fixedly connected to the slider, an air pipe is fixedly connected to the outer wall of the piston cylinder, an air bag is fixedly connected to the inner wall of the through groove, and the side wall of the air bag is fixedly connected to the air pipe. The expansion effect of the air bag can provide a flexible clamping force. When the slider slides, the slider can drive the push rod to move through the connecting rod. After the push rod moves, it can drive the piston block to move upward in the piston cylinder, pushing the gas in the piston cylinder into the air bag through the air pipe, thereby causing the air bag to expand and clamp the cable. The use of the air bag clamping can provide a flexible clamping force, which can effectively adapt to the dimensional changes of the cable due to thermal expansion and contraction, maintain stable clamping of the cable, and avoid the occurrence of loosening or over-clamping of the cable during operation.

[0013] A low-voltage cable connection device and a connection method thereof that are easy to fix include the following steps:

[0014] S1: Insert the weak-current cable into the main body. The weak-current cable contacts several sliders, which apply an extrusion force to the sliders, forcing the sliders to drive the U-shaped block to slide toward the movable groove, and then the U-shaped block applies an outward thrust to the annular spring. The annular spring is elastic and applies a downward thrust to the U-shaped block, thereby fixing the cable.

[0015] S2: The rack drives the gear to rotate. The ratchet and spring 2 work together to force the gear to rotate in only one direction. Under the action of spring 2, the ratchet, which has rotated downward, can be pulled back to the meshing position with the teeth on the gear, thereby ensuring that the ratchet is always engaged with the gear. This can prevent the cable from being subjected to external vibrations. The ratchet can ensure the safe locking of the gear.

[0016] S3: The expansion of the airbag provides a flexible clamping force. When the slider slides, it drives the push rod to move through the connecting rod. The push rod moves and drives the piston block upward in the piston cylinder. The gas in the piston cylinder is pushed into the airbag through the air pipe, causing the airbag to expand and clamp the cable.

[0017] S4: When the cable needs to be removed or replaced with a new one, the handle is pulled to pull the annular slider outward, which drives the slide bar to move outward. After the slide bar moves outward, it drives the ratchet to move outward. At this time, the ratchet is no longer engaged with the gear, so the gear is no longer restricted by the ratchet, allowing the slider to slide up and down freely. Then, the cable is pulled out of the main body to complete the cable removal work.

[0018] The present invention has the following beneficial effects:

[0019] 1. The present invention utilizes the elasticity of the spring to insert the weak-current cable into the main body. The weak-current cable inserted into the main body contacts a plurality of sliders. Due to the arc-shaped configuration of the slider, after the slider contacts the weak-current cable, it continues to push the weak-current cable forward, causing the slider to be subjected to an extrusion force, thereby forcing the slider to drive the U-shaped block to slide in the direction of the movable groove, and then the U-shaped block applies an outward thrust to the annular spring. When the cable passes through the slider, the annular spring has elasticity, and the annular spring will apply a downward thrust to the U-shaped block, thereby being able to fix the cable. This can adapt to cables of different sizes. When the weak-current cable is inserted into the main body, the slider will automatically adjust its position according to the size of the cable. Such a design can not only adapt to cables of different sizes without replacing the clamp, but also can apply appropriate extrusion pressure to the cable according to the changes in thermal expansion and contraction when the cable undergoes thermal expansion and contraction reactions due to temperature changes, thereby improving flexibility and versatility.

[0020] 2. When the U-shaped block of the present invention is pushed and moves toward the movable groove, it can drive the gear to rotate through the rack. When the gear rotates, the ratchet and the second spring work together to force the gear to rotate in only one direction. When the gear rotates, it can drive the ratchet to rotate downward with the slide bar as the center. Under the action of the second spring, the ratchet that has rotated downward can be pulled back to the meshing position with the teeth on the gear, thereby ensuring that the ratchet is always engaged with the gear. In this way, when the cable is subjected to external vibration, the use of the ratchet can ensure the safe locking of the gear, avoid the occurrence of accidental movement, and ensure the stability and reliability of the device when clamping the cable.

[0021] 3. The present invention utilizes the expansion effect of the airbag to provide a flexible clamping force. When the slider slides, the slider can drive the push rod to move through the connecting rod. After the push rod moves, it can drive the piston block to move upward in the piston cylinder, and push the gas in the piston cylinder into the airbag through the air pipe, so that the airbag expands and clamps the cable. The airbag clamping can provide a flexible clamping force, which can effectively adapt to the dimensional changes of the cable due to thermal expansion and contraction, maintain stable clamping of the cable, avoid the cable from loosening or clamping too tightly during operation, avoid excessive extrusion or friction, and thus reduce wear and damage to the cable surface.

[0022] 4. When the cable needs to be removed or replaced with a new one, the handle is pulled to pull the annular slider outward, which drives the slide bar to move outward. After the slide bar moves outward, it drives the ratchet to move outward. At this time, the ratchet is no longer engaged with the gear, so that the gear is no longer restricted by the ratchet, so that the slider can slide up and down freely. Then the cable is pulled out of the main body to complete the cable removal work, and then the new cable is reinserted into the main body. This provides convenience for replacing the cable, making cable replacement more simple and efficient. The staff can complete this task more quickly, which improves the convenience of the device when in use and the efficiency of cable replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a partial cross-sectional schematic diagram of the fixing mechanism of the present invention;

[0026] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0027] Figure 4 is a schematic diagram of some components of the fixing mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified schematic diagram of middle B;

[0029] Figure 6 Schematic diagram of the clamping mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 A magnified schematic diagram of middle C;

[0031] Figure 8 Schematic diagram of the workflow of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] In the figure: 1. Fixing mechanism; 101. Main body; 102. Connecting block; 103. Bolt; 104. Spring 1; 105. Movable groove; 106. Slider; 107. U-shaped block; 108. Annular spring; 109. Rack; 110. Fixing rod; 111. Gear; 2. Anti-falling mechanism; 201. Sliding rod; 202. Ratchet; 203. Spring 2; 204. Sliding groove; 205. Annular slider; 206. Handle; 207. Spring 3; 3. Clamping mechanism; 301. Through groove; 302. Piston cylinder; 303. Piston block; 304. Push rod; 305. Connecting rod; 306. Air pipe; 307. Airbag. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] For example 1, please refer to Figure 1 - Figure 2 The present invention is a weak current cable connection device that is easy to fix, including a fixing mechanism 1, the fixing mechanism 1 also includes a main body 101, the top of the main body 101 is fixedly connected to a connecting block 102, and the top of the connecting block 102 is slidably connected to a plurality of bolts 103;

[0036] The anti-fall mechanism 2 has a plurality of slide bars 201 slidably connected to the main body 101, and the ends of the plurality of slide bars 201 are rotatably connected to ratchets 202;

[0037] The clamping mechanism 3 has a through slot 301 in the main body 101 , and a plurality of piston cylinders 302 are fixedly connected to the inner wall of the through slot 301 . The plurality of piston cylinders 302 are distributed in an array, and piston blocks 303 are slidably connected to the inner walls of the plurality of piston cylinders 302 .

[0038] The fixing mechanism 1 also includes springs 104 respectively mounted on the outer walls of several bolts 103. The bottom ends of several springs 104 are fixedly connected to the bolts 103, and the top ends of several springs 104 are fixedly connected to the bottom of the connecting block 102. A movable groove 105 is provided in the main body 101. Under the action of the bolts 103, the device can be firmly fixed to the specified position. Under the action of the spring 104, the vibration generated by the outside world can be absorbed, thereby reducing the impact of external vibration on the cable.

[0039] The fixing mechanism 1 also includes a plurality of sliders 106 slidably connected to the inner wall of the movable groove 105. The sides of the plurality of sliders 106 away from each other are respectively fixedly connected with U-shaped blocks 107. The outer walls of the plurality of U-shaped blocks 107 are fixedly connected with annular springs 108. By utilizing the elastic characteristics of the springs, the weak-current cable is inserted into the main body 101. The weak-current cable inserted into the main body 101 contacts the plurality of sliders 106. Due to the arc-shaped configuration of the sliders 106, after the sliders 106 contact the weak-current cable, they continue to push the weak-current cable forward, causing the sliders 106 to be subjected to an extrusion force, thereby forcing the sliders 106 to drive the U-shaped blocks 107 to slide toward the movable groove 105. Then the U-shaped block 107 applies an outward thrust to the annular spring 108. When the cable passes through the slider 106, the annular spring 108 is elastic and applies a downward thrust to the U-shaped block 107, thereby fixing the cable. This can adapt to cables of different sizes. When the low-current cable is inserted into the main body 101, the slider 106 automatically adjusts its position according to the size of the cable. Such a design can not only adapt to cables of different sizes without replacing the clamp, but also can apply appropriate extrusion pressure to the cable according to the changes in thermal expansion and contraction when the cable expands and contracts due to temperature changes, thereby improving flexibility and versatility.

[0040] The fixing mechanism 1 also includes a rack 109 fixedly connected to the side wall of the U-shaped block 107, a fixing rod 110 fixedly connected to the side wall of the movable groove 105, and a gear 111 rotatably connected to the outer wall of the fixing rod 110. The gear 111 is engaged with the rack 109, and the gear 111 is engaged with the ratchet 202. The use of the ratchet 202 can ensure the safe locking of the gear 111, avoid the occurrence of accidental movement, and ensure the stability and reliability of the device when clamping the cable.

[0041] For example 2, please refer to Figure 3 - Figure 8The present invention is a low-voltage cable connection device that is easy to fix. On the basis of Example 1, the anti-falling mechanism 2 also includes a second spring 203 fixedly connected to the top of the ratchet 202. The side of the second spring 203 away from the ratchet 202 is fixedly connected to the inner wall of the movable groove 105. The ratchet 202 and the second spring 203 are used in conjunction with each other to force the gear 111 to rotate only in one direction. When the gear 111 rotates, it can drive the ratchet 202 to rotate downward with the slide bar 201 as the center. Under the action of the second spring 203, the ratchet 202 that has rotated downward can be pulled back to the meshing position with the teeth on the gear 111, thereby ensuring that the ratchet 202 is always meshed with the gear 111.

[0042] The anti-falling mechanism 2 also includes a slide groove 204 provided on the outer wall of the main body 101, an annular slider 205 is slidably connected to the outer wall of the slide groove 204, and a plurality of handles 206 are fixedly connected to the outer wall of the annular slider 205. A spring 3 207 is sleeved on the outer wall of the slide rod 201, and the right end of the spring 3 207 is fixedly connected to the main body 101, and the left end of the spring 3 207 is fixedly connected to the annular slider 205. When the cable needs to be removed or replaced with a new cable, the annular slider 205 is moved to the left by pulling the handle 206. The slider 201 is pulled outward to move outward, and the slider 201 moves outward to drive the ratchet 202 to move outward. At this time, the ratchet 202 is no longer engaged with the gear 111, so that the gear 111 is no longer restricted by the ratchet 202, so that the slider 106 can slide up and down freely, and then the cable is pulled out of the main body 101 to complete the cable removal work, and then the new cable is reinserted into the main body 101, which provides convenience for replacing the cable, improves the convenience of the device when in use and the efficiency of replacing the cable.

[0043] The clamping mechanism 3 also includes a push rod 304 fixedly connected to the bottom of the piston block 303, a connecting rod 305 fixedly connected to the outer wall of the push rod 304, and the end of the connecting rod 305 away from the push rod 304 is fixedly connected to the slider 106, an air pipe 306 is fixedly connected to the outer wall of the piston cylinder 302, and an air bag 307 is fixedly connected to the inner wall of the through groove 301. The side wall of the air bag 307 is fixedly connected to the air pipe 306. The expansion effect of the air bag 307 can provide a flexible clamping force. When the slider 106 slides, the slider 106 can The push rod 304 is driven to move by the connecting rod 305. After the push rod 304 moves, it can drive the piston block 303 to move upward in the piston cylinder 302, and push the gas in the piston cylinder 302 into the air bag 307 through the air pipe 306, so that the air bag 307 expands and clamps the cable. The air bag clamping with the air bag 307 can provide a flexible clamping force, which can effectively adapt to the dimensional changes of the cable due to thermal expansion and contraction, maintain stable clamping of the cable, and avoid the cable from loosening or being clamped too tightly during operation.

[0044] The connection method of the connection device includes the following steps:

[0045] S1: Insert the weak current cable into the main body 101. The weak current cable contacts the plurality of sliders 106, which apply a squeezing force to the sliders 106, forcing the sliders 106 to drive the U-shaped block 107 to slide toward the movable groove 105. The U-shaped block 107 then applies an outward thrust to the annular spring 108. The annular spring 108 is elastic and applies a downward thrust to the U-shaped block 107, thereby fixing the cable.

[0046] S2: The rack 109 drives the gear 111 to rotate. The ratchet 202 and the second spring 203 cooperate to force the gear 111 to rotate in only one direction. Under the action of the second spring 203, the ratchet 202, which has rotated downward, can be pulled back to the meshing position with the teeth on the gear 111, thereby ensuring that the ratchet 202 is always meshed with the gear 111. In this way, the cable can be prevented from being subjected to external vibrations. The use of the ratchet 202 can ensure the safe locking of the gear 111.

[0047] S3: The expansion of the airbag 307 can provide a flexible clamping force. When the slider 106 slides, the slider 106 can drive the push rod 304 to move through the connecting rod 305. After the push rod 304 moves, it can drive the piston block 303 to move upward in the piston cylinder 302, pushing the gas in the piston cylinder 302 into the airbag 307 through the gas pipe 306, thereby expanding the airbag 307 and clamping the cable.

[0048] S4: When the cable needs to be removed or replaced with a new one, the annular slider 205 is pulled outward by pulling the handle 206, driving the slide bar 201 to move outward. After the slide bar 201 moves outward, it drives the ratchet 202 to move outward. At this time, the ratchet 202 is no longer engaged with the gear 111, so that the gear 111 is no longer restricted by the ratchet 202, so that the slider 106 can slide up and down freely, and then the cable is pulled out of the main body 101 to complete the cable removal work.

[0049] A specific application of this embodiment is: when it is necessary to fix the weak current cable, first insert the weak current cable into the main body 101, and the weak current cable inserted into the main body 101 contacts with a plurality of sliders 106. Due to the arc-shaped configuration of the sliders 106, after the sliders 106 contact with the weak current cable, they continue to push the weak current cable forward so that the sliders 106 are subjected to an extrusion force, thereby forcing the sliders 106 to drive the U-shaped block 107 to slide toward the movable groove 105, thereby causing the U-shaped block 107 to exert an anti-rotation force on the annular spring 108. When the cable passes through the slider 106, the annular spring 108 is elastic and applies a downward thrust to the U-shaped block 107, thereby fixing the cable. This can adapt to cables of different sizes. When the U-shaped block 107 is pushed toward the movable groove 105, it can drive the gear 111 to rotate through the rack 109. When the gear 111 rotates, the ratchet 202 and the spring 203 cooperate to force the gear 111 to rotate in only one direction, which can avoid the cable from being stuck. When subjected to external vibrations, the ratchet 202 can ensure the safe locking of the gear 111 to avoid accidental movement. When the slider 106 slides, the slider 106 can drive the push rod 304 to move through the connecting rod 305. After the push rod 304 moves, it can drive the piston block 303 to move upward in the piston cylinder 302, and push the gas in the piston cylinder 302 into the air bag 307 through the air pipe 306, so that the air bag 307 expands and clamps the cable. The air bag 307 can be used to clamp the cable. It provides a flexible clamping force and can adapt to the dimensional changes of the cable due to thermal expansion and contraction. When the device needs to be removed from the cable, the annular slider 205 is pulled outward by the handle 206, driving the slide bar 201 to move outward. After the slide bar 201 moves outward, it drives the ratchet 202 to move outward. At this time, the ratchet 202 is no longer engaged with the gear 111, so that the gear 111 is no longer restricted by the ratchet 202, allowing the slider 106 to slide up and down freely, and then the cable is pulled out of the main body 101 to complete the cable removal work.

[0050] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for connecting a weak-current cable that is easy to fix, comprising a fixing mechanism (1), wherein the fixing mechanism (1) further comprises a main body (101), a connecting block (102) is fixedly connected to the top of the main body (101), and a plurality of bolts (103) are slidably connected to the top of the connecting block (102), characterized in that: Also includes: An anti-falling mechanism (2), wherein a plurality of sliding rods (201) are slidably connected to the main body (101), and the ends of the plurality of sliding rods (201) are rotatably connected to ratchets (202); The clamping mechanism (3) comprises a through groove (301) formed in the main body (101), a plurality of piston cylinders (302) being fixedly connected to the inner wall of the through groove (301), the plurality of piston cylinders (302) being distributed in an array, and a piston block (303) being slidably connected to the inner wall of the plurality of piston cylinders (302).

2. A light-current cable connection device that is easy to fix according to claim 1, characterized in that: The fixing mechanism (1) further includes springs (104) respectively mounted on the outer walls of the plurality of bolts (103), the bottom ends of the plurality of springs (104) being fixedly connected to the bolts (103), and the top ends of the plurality of springs (104) being fixedly connected to the bottom of the connecting block (102), and a movable groove (105) being provided in the main body (101).

3. A light-current cable connection device that is easy to fix according to claim 2, characterized in that: The fixing mechanism (1) further comprises a plurality of sliders (106) slidably connected to the inner wall of the movable groove (105), a U-shaped block (107) being fixedly connected to the sides of the plurality of sliders (106) away from each other, and an annular spring (108) being fixedly connected to the outer walls of the plurality of U-shaped blocks (107).

4. A light-current cable connection device that is easy to fix according to claim 3, characterized in that: The fixing mechanism (1) further comprises a rack (109) fixedly connected to the side wall of the U-shaped block (107); a fixing rod (110) is fixedly connected to the side wall of the movable groove (105); a gear (111) is rotatably connected to the outer wall of the fixing rod (110); the gear (111) is meshed with the rack (109), and the gear (111) is meshed with the ratchet (202).

5. The easy-to-fix weak-current cable connection device according to claim 4, characterized in that: The anti-falling mechanism (2) further comprises a second spring (203) fixedly connected to the top of the ratchet (202), and the side of the second spring (203) away from the ratchet (202) is fixedly connected to the inner wall of the movable groove (105).

6. The easy-to-fix weak-current cable connection device according to claim 5, characterized in that: The anti-falling mechanism (2) further comprises a slide groove (204) provided on the outer wall of the main body (101), an annular slider (205) being slidably connected to the outer wall of the slide groove (204), a plurality of handles (206) being fixedly connected to the outer wall of the annular slider (205), a spring three (207) being sleeved on the outer wall of the slide rod (201), the right end of the spring three (207) being fixedly connected to the main body (101), and the left end of the spring three (207) being fixedly connected to the annular slider (205).

7. The easy-to-fix weak-current cable connection device according to claim 6, characterized in that: The clamping mechanism (3) further comprises a push rod (304) fixedly connected to the bottom of the piston block (303); a connecting rod (305) is fixedly connected to the outer wall of the push rod (304); an end of the connecting rod (305) away from the push rod (304) is fixedly connected to the slider (106); an air pipe (306) is fixedly connected to the outer wall of the piston cylinder (302); an air bag (307) is fixedly connected to the inner wall of the through groove (301); and a side wall of the air bag (307) is fixedly connected to the air pipe (306).

8. A conveniently fixed weak-current cable connection device according to claim 7, characterized in that: The connecting method of the connecting device comprises the following steps: S1: Insert the weak-current cable into the main body (101), and the weak-current cable contacts a plurality of sliders (106), so that the sliders (106) are subjected to an extrusion force, thereby forcing the sliders (106) to drive the U-shaped block (107) to slide toward the movable groove (105), thereby causing the U-shaped block (107) to apply an outward thrust to the annular spring (108). The annular spring (108) is elastic, and the annular spring (108) applies a downward thrust to the U-shaped block (107), thereby fixing the cable; S2: The rack (109) drives the gear (111) to rotate. The ratchet (202) and the second spring (203) cooperate to force the gear (111) to rotate in only one direction. Under the action of the second spring (203), the ratchet (202) that has rotated downward can be pulled back to the meshing position with the teeth on the gear (111), thereby ensuring that the ratchet (202) is always meshed with the gear (111). In this way, the cable can be prevented from being subjected to external vibrations. The use of the ratchet (202) can ensure the safe locking of the gear (111); S3: By utilizing the expansion effect of the airbag (307), a flexible clamping force can be provided. When the slider (106) slides, the slider (106) can drive the push rod (304) to move through the connecting rod (305). After the push rod (304) moves, it can drive the piston block (303) to move upward in the piston cylinder (302), pushing the gas in the piston cylinder (302) into the airbag (307) through the gas pipe (306), thereby causing the airbag (307) to expand and clamp the cable; S4: When the cable needs to be removed or replaced with a new cable, the handle (206) is pulled to pull the annular slider (205) outward, driving the slide bar (201) to move outward. After the slide bar (201) moves outward, it drives the ratchet (202) to move outward. At this time, the ratchet (202) is no longer engaged with the gear (111), so that the gear (111) is no longer restricted by the ratchet (202), allowing the slider (106) to slide up and down freely, and then the cable is pulled out of the main body (101), completing the cable removal work.

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