Low-voltage cable branch box

Abstract

The low-voltage cable branch box comprises a branch box body, a wire inlet assembly is installed in the branch box body, and a wire arrangement assembly is arranged in the branch box body; the wire inlet assembly is composed of a conical rubber cylinder, a guide rod, a pressurizing ring and a lower pressing ring. According to the low-voltage cable branch box, through the use of the wire inlet assembly, the expansion cylinder is moved out of the wire penetrating hole and the inner cavity of the pressurization ring, and under the condition that the elasticity of the material of the wire penetrating hole is recovered, the inner diameter of the wire penetrating hole is reduced, and a cable is extruded and attached, so that the purpose of fixing can be achieved, and meanwhile, the sealing effect is achieved; and the arc-shaped clamping plates move under the action of the compression springs, so that the arc-shaped rubber sheets extrude the cable and realize secondary fixation, thereby preventing the cable part located outside the branch box body from being pulled and causing the connection part in the branch box body to fall off, and improving the use stability.

Description

Technical Field

[0001] This invention relates to the field of low-voltage cable branch box technology, specifically a low-voltage cable branch box. Background Technology

[0002] Currently, existing low-voltage cable distribution boxes suffer from several drawbacks during use. Gaps between the cables and the inlet prevent complete enclosure, and the cables rely solely on connections to electrical equipment within the box. This vulnerability makes them susceptible to detachment under external force. Furthermore, longer cables tend to become tangled and disorganized within the box, hindering both usability and maintenance. Therefore, we propose a new type of low-voltage cable distribution box. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a low-voltage cable branch box, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a low-voltage cable branch box, comprising a branch box body, wherein an inlet assembly is installed inside the branch box body, and a cable management assembly is provided inside the branch box body; The inlet assembly consists of a conical rubber cylinder, a guide rod, a pressure ring, and a lower pressure ring. The conical rubber cylinder is connected to the bottom of the inner cavity of the branch box and has a wire-passing hole in the middle. The top of the conical rubber cylinder is provided with a pressure ring, and the lower pressure ring is provided above the pressure ring. Sliding plates are fixedly connected to both sides of the lower pressure ring. The sliding plates are slidably sleeved onto the surface of the guide rod. An expansion cylinder is fixedly connected to the bottom of the lower pressure ring and extends through the pressure ring into the inner cavity of the wire-passing hole.

[0005] Preferably, the cable management assembly consists of a base plate, a mounting plate one, and a mounting plate two. Mounting plate one and mounting plate two are fixedly connected to the front of the base plate. Two sliding grooves one are formed on one side of mounting plate two. A sliding rod is fixedly connected to the inner cavity of each sliding groove one. Sliding groove two and sliding groove three are formed on one side of mounting plate one. A screw rod one is rotatably installed in the inner cavity of sliding groove two, and a screw rod two is rotatably installed in the inner cavity of sliding groove three. The thread direction of screw rod two is opposite to that of screw rod one. An upper moving block and a lower moving block are provided between mounting plate one and mounting plate two. One end of the upper moving block is threaded onto the surface of screw rod one, and one end of the lower moving block is threaded onto the surface of screw rod two. The other ends of both the lower and upper moving blocks are slidably fitted onto the corresponding sliding rod surfaces. Arc-shaped plastic clips are fixedly installed on the front of the lower moving block and the back of the upper moving block.

[0006] Preferably, the guide rod is fixedly connected to the bottom of the inner cavity of the branch box and the guide rod is located on both sides of the conical rubber cylinder.

[0007] Preferably, the pressure ring is fixedly connected to the guide rod, a pressure rod is slidably installed inside the pressure ring, one end of the pressure rod extends into the inner cavity of the pressure ring and is fixedly connected to an arc-shaped clamping plate, an arc-shaped rubber sheet is fixedly installed on one side of the arc-shaped clamping plate, a compression spring is fixedly connected to the inner wall of the pressure ring and the compression spring is sleeved on the surface of the pressure rod, one end of the compression spring is connected to the inner wall of the pressure ring and the other end is connected to the arc-shaped clamping plate.

[0008] Preferably, the bottom of the branch box has several wire-passing holes and the wire-passing holes are concentric. The inside of the branch box is equipped with a mounting bracket by screws. The front of the branch box is equipped with a door by hinges and the inside of the door is equipped with a sealing strip.

[0009] Preferably, a sprocket is fixedly sleeved at one end of both screw one and screw two, and a chain is driven onto the surface of the two sprockets. One end of screw one extends to the outside of mounting plate one and is fixedly connected to a rotating disk.

[0010] Preferably, the base plate is installed to the inner wall of the branch box by screws, and one mounting plate and one mounting plate form a group, the number of which is the same as the incoming line assembly.

[0011] Preferably, the expansion cylinder is conical and hollow, and the inner diameter of the expansion cylinder is larger than the diameter of the cable.

[0012] Preferably, the conical rubber cylinder and the top of the inner wall of the pressure ring are both arc-shaped, and the diameter of the threading hole is smaller than the diameter of the cable.

[0013] This invention provides a low-voltage cable branch box, which has the following advantages: 1. This low-voltage cable branch box utilizes an inlet assembly. An expansion cylinder is inserted into the cable hole and pressure ring cavity, expanding their diameter. This allows the cable to smoothly enter the branch box's interior. The upward movement of the lower pressure ring moves the expansion cylinder upward, causing it to exit the cable hole and pressure ring cavity. As the cable hole recovers its elasticity, its inner diameter decreases, compressing and sealing the cable. This provides both fixation and a seal. The arc-shaped clamp moves under the action of a compression spring, further compressing the cable and securing it. This prevents the cable outside the branch box from being pulled, which could cause the internal connections to detach, improving stability. Furthermore, each cable can be replaced individually, allowing for separate cable arrangement and facilitating subsequent maintenance and replacement.

[0014] 2. This low-voltage cable branch box, through the use of the cable management component, allows the cable to first pass through the inner cavities of two corresponding sets of arc-shaped plastic clips. The rotating disc drives the first screw to rotate, and under the coordinated action of the sprocket and chain, the second screw also rotates. The upper and lower moving blocks move in opposite directions, thereby gradually increasing the distance between the two arc-shaped plastic clips, thus securing excess loose cables. This prevents loose or long cables from being distributed messily inside the branch box, and each cable can be adjusted individually, making it more convenient. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a front view of the present invention. Figure 3 This is a schematic diagram of the structure of the inlet assembly of the present invention; Figure 4 This is a schematic diagram of the cable management component of the present invention; Figure 5 This is a schematic diagram of the structure of screw one and screw two of the present invention; Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A; Figure 7 For the present invention Figure 1 Enlarged structural diagram at point B; Figure 8 This is a partial structural diagram of the present invention; Figure 9 This is a schematic diagram of the motion structure of the infeed assembly of the present invention.

[0016] In the diagram: 1. Branch box body; 2. Inlet assembly; 201. Conical rubber cylinder; 202. Guide rod; 203. Pressure rod; 204. Sliding plate; 205. Lower pressure ring; 206. Pressure ring; 207. Compression spring; 208. Threading hole; 209. Arc-shaped rubber sheet; 210. Arc-shaped clamping plate; 211. Expansion cylinder; 3. Cable Management Assembly; 301. Base Plate; 302. Slide Rail 1; 303. Slide Rod; 304. Arc-shaped Plastic Clip; 305. Mounting Plate 1; 306. Upper Moving Block; 307. Rotating Disc; 308. Mounting Plate 2; 309. Screw 1; 310. Screw 2; 311. Slide Rail 2; 312. Sprocket; 313. Chain; 314. Lower Moving Block; 315. Slide Rail 3; 4. Wiring port; 5. Box door; 6. Mounting bracket. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Please see Figures 1 to 9 The present invention provides a technical solution: a low-voltage cable branch box, comprising a branch box body 1, an inlet assembly 2 installed inside the branch box body 1, and a cable management assembly 3 provided inside the branch box body 1. The inlet assembly 2 consists of a conical rubber cylinder 201, a guide rod 202, a pressure ring 206, and a lower pressure ring 205. The guide rod 202 is fixedly connected to the bottom of the inner cavity of the branch box 1 and is located on both sides of the conical rubber cylinder 201. The conical rubber cylinder 201 is connected to the bottom of the inner cavity of the branch box 1 and has a wire-passing hole 208 in the middle. The top of the conical rubber cylinder 201 is provided with a pressure ring 206, and the lower pressure ring 205 is provided above the pressure ring 206. Sliding plates 204 are fixedly connected to both sides of the lower pressure ring 205. The sliding plates 204 are slidably sleeved onto the surface of the guide rod 202. An expansion cylinder 211 is fixedly connected to the bottom of the lower pressure ring 205 and extends through the pressure ring 206 into the inner cavity of the wire-passing hole 208. The pressure ring 206 is fixedly connected to the guide rod 202. A pressure rod 203 is slidably installed inside the pressure ring 206, and one end of the pressure rod 203 extends into the inner cavity of the pressure ring 206 and is fixedly connected to an arc-shaped clamping plate 210. An arc-shaped rubber sheet 209 is fixedly installed on one side of the arc-shaped clamping plate 210. A compression spring 207 is fixedly connected to the inner wall of the pressure ring 206 and is sleeved onto the surface of the pressure rod 203. One end of the compression spring 207 is connected to the inner wall of the pressure ring 206, and the other end is connected to the arc-shaped clamping plate 210.

[0019] The expansion cylinder 211 is conical and hollow. The inner diameter of the expansion cylinder 211 is larger than the cable diameter. The top of the inner wall of the conical rubber cylinder 201 and the pressure ring 206 are both arc-shaped. The diameter of the wire hole 208 is smaller than the cable diameter.

[0020] The purpose of the arc-shaped design of the top of the conical rubber cylinder 201 and the inner wall of the pressure ring 206 is to ensure that when the expansion cylinder 211 descends, it can enter the inner cavity of the pressure ring 206 and the thread hole 208 along the arc surface to achieve expansion and improve stability.

[0021] An expansion cylinder 211 is inserted into the inner cavity of the wire hole 208 and the pressure ring 206, thereby expanding the diameter of the inner cavity of the wire hole 208 and the pressure ring 206. The expansion cylinder 211 allows the cable to smoothly enter the inner cavity of the branch box 1, avoiding obstruction during wire threading and ensuring a smooth threading process. After threading, pulling the sliding plate 204 and the lower pressure ring 205 upwards causes the lower pressure ring 205 to move upwards, driving the expansion cylinder 211 upwards, thus moving the expansion cylinder 211 out of the inner cavity of the wire hole 208 and the pressure ring 206. At this point, since the wire hole 208 is not expanded by the expansion cylinder 211, it... When the material itself recovers its elasticity, the inner diameter of the wire hole 208 decreases and squeezes and adheres to the cable, which not only serves to fix it but also provides a sealing effect. The arc-shaped clamp 210 moves under the action of the compression spring 207, causing the arc-shaped rubber sheet 209 to squeeze the cable and achieve secondary fixation. This prevents the cable part located outside the branch box 1 from being pulled and causing the connection inside the branch box 1 to fall off, thus improving the stability of use. In addition, each cable can be replaced individually, and each cable can be arranged separately for easy subsequent maintenance and replacement.

[0022] The cable management assembly 3 consists of a base plate 301, a first mounting plate 305, and a second mounting plate 308. Both the first mounting plate 305 and the second mounting plate 308 are fixedly connected to the front of the base plate 301. Two sliding grooves 302 are formed on one side of each second mounting plate 308. A sliding rod 303 is fixedly connected to the inner cavity of each sliding groove 302. A second sliding groove 311 and a third sliding groove 315 are formed on one side of the first mounting plate 305. A screw rod 309 is rotatably mounted in the inner cavity of the second sliding groove 311, and a screw rod 310 is rotatably mounted in the inner cavity of the third sliding groove 315. The screw rod 310 and the screw rod... The threads of screw 309 are opposite in direction. Between mounting plate 305 and mounting plate 308, there is an upper moving block 306 and a lower moving block 314. One end of the upper moving block 306 is threaded onto the surface of screw 309, and one end of the lower moving block 314 is threaded onto the surface of screw 310. The other ends of both the lower moving block 314 and the upper moving block 306 are slidably fitted onto the surface of the corresponding slide rod 303. The slide rod 303 serves as a guide, improving the stability of the movement of the upper moving block 306 and the lower moving block 314. Arc-shaped plastic clips 304 are fixedly installed on the front of the lower movable block 314 and the back of the upper movable block 306. An opening is provided on one side of the arc-shaped plastic clip 304, and the cable can pass directly through the arc-shaped plastic clip 304 or enter the arc-shaped plastic clip 304 through the notch. The width of the notch is smaller than the diameter of the cable. The arc-shaped plastic clip 304 is made of elastic plastic.

[0023] The bottom of the branch box 1 has several wire holes 4 and the wire holes 4 are concentric with the wire holes 208. The inside of the branch box 1 is equipped with a mounting bracket 6 by screws. The front of the branch box 1 is equipped with a door 5 by hinges and the inside of the door 5 is equipped with a sealing strip.

[0024] The wire threading port 4 is used for threading wires, and the number of wire threading ports 4 is the same as the number of wire inlet components 2. Depending on the actual situation, branch box bodies 1 with different numbers of wire threading ports 4 and wire inlet components 2 can be produced.

[0025] Both screw 309 and screw 310 have sprockets 312 fixedly sleeved at one end. Chains 313 are mounted on the surfaces of the two sprockets 312. One end of screw 309 extends to the outside of mounting plate 305 and is fixedly connected to a rotating disk 307. Through the transmission of the sprockets 312 and the chain 313, screw 309 and screw 310 can rotate together.

[0026] The base plate 301 is installed to the inner wall of the branch box 1 by screws, and one mounting plate 305 and one mounting plate 308 form a group, the number of which is the same as that of the incoming line assembly 2.

[0027] The rotating disk 307 drives the screw 309 to rotate. Under the coordinated action of the sprocket 312 and the chain 313, the screw 310 also rotates. Since the screws 309 and 310 have opposite thread directions, the upper moving block 306 moves towards the base plate 301, while the lower moving block 314 moves in the opposite direction. This causes the distance between the two arc-shaped plastic clips 304 to gradually increase, thereby tightening the loose cables and preventing them from being loose or long and messy in the inner cavity of the branch box 1. Each cable can also be adjusted individually, which is more convenient.

[0028] In summary, when using this low-voltage cable branch box, the cable is passed through the cable inlet 4 and into the inner cavity of the expansion cylinder 211. After passing through the inner cavity of the expansion cylinder 211 and the lower pressure ring 205, the cable enters the inner cavity of the branch box body 1. Then, the cable is passed through the inner cavities of the two corresponding sets of arc-shaped plastic clips 304 and connected to the power components installed on the mounting bracket 6. The cable routing sequence is reversed. First, the cable passes through the inner cavity of the two sets of corresponding arc-shaped plastic clips 304, then passes through the inner cavity of the lower pressure ring 205 and the expansion cylinder 211 from top to bottom, and then exits through the cable outlet 4 into the inner cavity of the branch box 1. Then, depending on the length of the line, if the cable is loose, the corresponding rotating disk 307 can be rotated. The rotating disk 307 drives the screw 309 to rotate. Under the coordinated action of the sprocket 312 and the chain 313, the screw 310 also rotates. Since the screws 309 and 310 have opposite thread directions, the upper moving block 306 will move towards the base plate 301, while the lower moving block 314 will move in the opposite direction. This will gradually increase the distance between the two arc-shaped plastic clips 304, thereby tightening the excess loose cable. After adjustment, pull the sliding plate 204 and the lower pressure ring 205 upwards, causing the lower pressure ring 205 to move upwards and drive the expansion cylinder 211 upwards, so that the expansion cylinder 211 moves out of the inner cavity of the wire hole 208 and the pressure ring 206. At this time, since the wire hole 208 is not expanded by the expansion cylinder 211, its inner diameter shrinks and squeezes and adheres to the cable as the elasticity of its own material recovers. This not only serves the purpose of fixing but also provides a sealing effect. Meanwhile, the arc-shaped clamp 210 moves under the action of the compression spring 207, causing the arc-shaped rubber sheet 209 to squeeze the cable and achieve secondary fixing.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-voltage cable branch box, comprising a branch box body (1), characterized in that: The branch box (1) is equipped with a cable entry assembly (2) and a cable management assembly (3). The inlet assembly (2) consists of a conical rubber cylinder (201), a guide rod (202), a pressure ring (206), and a lower pressure ring (205). The conical rubber cylinder (201) is connected to the bottom of the inner cavity of the branch box (1), and a wire hole (208) is provided in the middle of the conical rubber cylinder (201). A pressure ring (206) is provided at the top of the conical rubber cylinder (201), and a lower pressure ring (205) is provided above the pressure ring (206). Sliding plates (204) are fixedly connected to both sides of the lower pressure ring (205). The sliding plates (204) are slidably sleeved onto the surface of the guide rod (202). An expansion cylinder (211) is fixedly connected to the bottom of the lower pressure ring (205), and the expansion cylinder (211) extends through the pressure ring (206) to the inner cavity of the wire hole (208).

2. A low-voltage cable branch box according to claim 1, characterized in that: The cable management assembly (3) consists of a base plate (301), a mounting plate one (305), and a mounting plate two (308). The mounting plate one (305) and the mounting plate two (308) are fixedly connected to the front of the base plate (301). Two sliding grooves one (302) are opened on one side of the mounting plate two (308). A sliding rod (303) is fixedly connected to the inner cavity of the sliding groove one (302). A sliding groove two (311) and a sliding groove three (315) are opened on one side of the mounting plate one (305). A screw rod one (309) is rotatably installed in the inner cavity of the sliding groove two (311), and a screw rod two (310) is rotatably installed in the inner cavity of the sliding groove three (315). The thread direction of the second (310) is opposite to that of the first (309). The corresponding mounting plate first (305) and mounting plate second (308) are provided with an upper moving block (306) and a lower moving block (314). One end of the upper moving block (306) is threaded to the surface of the first (309), and one end of the lower moving block (314) is threaded to the surface of the second (310). The other ends of the lower moving block (314) and the upper moving block (306) are slidably sleeved to the surface of the corresponding slide rod (303). The front of the lower moving block (314) and the back of the upper moving block (306) are both fixedly installed with arc-shaped plastic clips (304).

3. A low-voltage cable branch box according to claim 1, characterized in that: The guide rod (202) is fixedly connected to the bottom of the inner cavity of the branch box body (1) and the guide rod (202) is located on both sides of the conical rubber cylinder (201).

4. A low-voltage cable branch box according to claim 1, characterized in that: The pressure ring (206) is fixedly connected to the guide rod (202). A pressure rod (203) is slidably installed inside the pressure ring (206), and one end of the pressure rod (203) extends into the inner cavity of the pressure ring (206) and is fixedly connected to an arc-shaped clamping plate (210). An arc-shaped rubber sheet (209) is fixedly installed on one side of the arc-shaped clamping plate (210). A compression spring (207) is fixedly connected to the inner wall of the pressure ring (206), and the compression spring (207) is sleeved onto the surface of the pressure rod (203). One end of the compression spring (207) is connected to the inner wall of the pressure ring (206), and the other end is connected to the arc-shaped clamping plate (210).

5. A low-voltage cable branch box according to claim 1, characterized in that: The bottom of the branch box body (1) is provided with several wire holes (4) and the wire holes (4) are concentric with the wire holes (208). The branch box body (1) is equipped with a mounting bracket (6) by screws. The front of the branch box body (1) is equipped with a door (5) by hinges and a sealing strip is provided on the inside of the door (5).

6. A low-voltage cable branch box according to claim 2, characterized in that: One end of each of the screws (309) and the second screw (310) is fixedly fitted with a sprocket (312), and a chain (313) is installed on the surface of the two sprockets (312). One end of the screw (309) extends to the outside of the mounting plate (305) and is fixedly connected to a rotating disk (307).

7. A low-voltage cable branch box according to claim 2, characterized in that: The base plate (301) is installed to the inner wall of the branch box body (1) by screws, and one mounting plate (305) and one mounting plate (308) are a group, the number of which is the same as that of the incoming line assembly (2).

8. A low-voltage cable branch box according to claim 1, characterized in that: The expansion cylinder (211) is conical in shape and hollow in design, and the inner diameter of the expansion cylinder (211) is larger than the diameter of the cable.

9. A low-voltage cable branch box according to claim 1, characterized in that: The top of the inner wall of the conical rubber cylinder (201) and the pressure ring (206) are both arc-shaped, and the diameter of the wire hole (208) is smaller than the diameter of the cable.

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