Cable fast-assembling junction box for rail transit

Abstract

The utility model discloses a rail transit cable fast-assembly junction box, which relates to the technical field of junction box equipment, and comprises a box body, fixed connecting pieces are fixedly arranged in the box body in a symmetrical structure, fixed blocks are arranged on the fixed connecting pieces, a gear is rotatably connected to the outer side of a screw rod, the gear is positioned on the right side of the box body, and the fixed blocks are arranged on the fixed connecting pieces. A rack is slidably installed in the movable groove, and the end of the rack is fixedly connected with a connecting rod. According to the utility model, a cable is held to extrude an incoming line of the movable block, then the connecting rod slides downwards, and the screw rod can rotate in the gear through mutual cooperation between the rack and the gear, so that the screw rod moves leftwards, when the screw rod moves leftwards, the convex block is driven to move leftwards at the same time so as to extrude the clamping block, and the clamping block is clamped through the performance of the first spring. According to the cable fast-assembling junction box for the rail transit, the clamping blocks can move outwards, so that the clamping blocks can clamp and fix a cable more tightly, the cable fast-assembling junction box is convenient to use, and the practicability of the whole cable fast-assembling junction box for the rail transit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of junction box equipment, in particular to a cable quick-install junction box for rail transit. Background Art

[0002] The cable quick-assembly distribution box for rail transit is an electrical device designed specifically for rail transit systems. It is used to quickly and effectively connect, distribute and protect cables. In rail transit construction, such as subways, light rails, trams, etc., a large number of cables and lines need to be effectively managed and protected to ensure the safety and reliability of train operation.

[0003] The cable quick-install junction box is mainly composed of the following parts: Box body: usually made of aluminum alloy, with good mechanical properties and corrosion resistance, able to withstand the harsh environment commonly found in rail transit systems, Cover plate: as an important component of the junction box, it is used to protect the power distribution module in the box, and has certain fireproof, waterproof, dustproof and other properties to ensure that the equipment can still operate normally in harsh environments, Power distribution module: this is the core part of the junction box, which connects different power supply equipment through cables and manages different lines to quickly connect different lines for power distribution. The design of the power distribution module makes cable connection and management more convenient and improves work efficiency, Insulator: used to isolate the distance between the cable sheath and the cable. The compressive strength of the cable will directly affect the service life of the cable. The use of insulators can ensure that the cable remains stable during the connection process and prevent damage caused by pressure changes.

[0004] The patent with the public number: CN219164150U discloses a rail transit cable quick-install distribution box, which classifies and fixes cables of different sizes by passing cables of different sizes through the second fixing hole and then rotating the bolt to drive the second anti-slip rubber pad forward, thereby improving the applicability of the device.

[0005] However, it is rather laborious to adjust the size of the second fixing hole by means of a bolt to fix the cable in the comparative document. When the cable needs to be clamped, the bolt needs to be rotated to achieve this purpose, which is rather inconvenient in actual use. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a cable quick-install distribution box for rail transit, so as to solve the technical problem in the comparative document that it is rather laborious to adjust the size of the second fixing hole by bolts to fix the cable, and when the cable needs to be clamped, the bolt needs to be rotated to achieve this purpose, which is quite inconvenient in actual use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable quick-install distribution box for rail transit, comprising a box body, a fixed connecting piece is fixedly installed in the box body in a symmetrical structure, a fixed block is arranged on the fixed connecting piece, a plurality of movable blocks are arranged in the fixed block, a first spring is fixedly installed in the movable block, a clamping block is fixedly connected to the end of the first spring, the movable block is an L-shaped structure, a second spring is fixedly connected to the end of the movable block, a screw rod is movably installed in the fixed block, a plurality of groups of protrusions are fixedly installed on the screw rod, the protrusions are located between the clamping blocks, a gear is rotatably connected to the outer side of the screw rod, the gear is located on the right side of the box body, a movable groove for cooperating with the gear is opened on the right side of the box body, a rack is slidably installed in the movable groove, a connecting rod is fixedly connected to the end of the rack, and the gear is threadedly connected to the screw rod.

[0008] By adopting the above technical solution, when in use, hold the cable to squeeze the incoming line of the movable block, and then slide the connecting rod downward. Through the mutual cooperation between the rack and the gear, the screw rod can be rotated in the gear, so that the screw rod moves to the left. When the screw rod moves to the left, it drives the protrusion to move to the left at the same time, thereby squeezing the clamping block. Through the performance of the first spring itself, the clamping block can be moved outward, and then the cable can be clamped into the clamping block. When the cable is located between the clamping blocks, the pressure on the movable block is released, and the performance of the second spring itself can reset the movable block, so that the protrusion is separated from the clamping blocks. At the same time, through the performance of the first spring itself, the clamping block can clamp and fix the cable more tightly, which is more convenient to use, thereby improving the practicality of the cable quick-install distribution box of the entire rail transit.

[0009] The utility model is further configured that a plurality of groups of inlet pipes are provided on the top of the box body, and a limiting structure is arranged inside the inlet pipes.

[0010] By adopting the above technical solution, the provided wire inlet pipe and the limiting structure facilitate the cables to be guided into the box in a relatively stable manner.

[0011] The utility model is further configured that the front side of the box body is rotatably connected with a box door, and the box door is provided with a handle.

[0012] By adopting the above technical solution, the cooperation between the box door and the handle can enable the entire cable quick-install distribution box to be put into normal use, thereby protecting the structure inside the box.

[0013] The utility model is further configured that a slide groove used in conjunction with the movable block is provided in the fixed block, and a rubber pad is provided on the inner side of the clamping block.

[0014] By adopting the above technical solution, the sliding groove is provided so that the movable block can slide smoothly in the fixed block. Secondly, the rubber pad in the clamping block can make the clamping block better clamp and fix the cable.

[0015] The utility model is further configured such that the screw rod is located in the middle of the second spring, and a cavity used in conjunction with the screw rod is provided in the fixing block.

[0016] By adopting the above technical solution, when the screw rod is located in the middle position of the second spring, the screw rod and the protrusion can move flexibly in the fixed block in cooperation with the cavity provided in the fixed block.

[0017] The utility model is further configured that coil springs are arranged on both sides of the gear, a slider is arranged at the end of the connecting rod, and the slider is slidably connected to the side wall of the movable groove.

[0018] By adopting the above technical solution, the coil spring is provided to facilitate the quick reset of the auxiliary gear for subsequent use. When the slider is slidably connected to the side wall of the movable groove, the connecting rod can slide up and down flexibly in the movable groove.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] 1. The utility model squeezes the incoming line of the movable block by holding the cable, and then slides the connecting rod downward. Through the mutual cooperation between the rack and the gear, the screw rod can be rotated in the gear, so that the screw rod moves to the left. When the screw rod moves to the left, the protrusion is driven to move to the left at the same time, thereby squeezing the clamping block. Through the performance of the first spring itself, the clamping block can be moved outward, and then the cable can be clamped into the clamping block. When the cable is located between the clamping blocks, the pressure on the movable block is released. Through the performance of the second spring itself, the movable block can be reset, and the protrusion is separated from between the clamping blocks. At the same time, through the performance of the first spring itself, the clamping block can clamp and fix the cable more tightly, which is more convenient to use, so that the practicality of the cable quick-install junction box of the entire rail transit is improved;

[0021] 2. The utility model provides a coil spring to facilitate quick reset of the auxiliary gear for subsequent use. When the slider is slidably connected to the side wall of the movable groove, the connecting rod can slide up and down flexibly in the movable groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the utility model from a first perspective;

[0024] Figure 3It is a schematic diagram of the internal structure of the utility model from a second viewing angle;

[0025] Figure 4 This is a schematic diagram of the split structure of the utility model from a first viewing angle;

[0026] Figure 5 This is a schematic diagram of the split structure of the utility model from a second viewing angle;

[0027] Figure 6 For the utility model Figure 4 A partial enlarged view of middle A;

[0028] Figure 7 For the utility model Figure 5 A partial enlarged view of B.

[0029] In the figure: 1. box body; 2. box door; 3. wire inlet pipe; 4. limit structure; 5. movable groove; 6. connecting rod; 7. fixed connector; 8. fixed block; 9. movable block; 10. gear; 11. rack; 12. slide groove; 13. screw rod; 14. first spring; 15. clamping block; 16. second spring; 17. protrusion. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes an embodiment of the utility model based on its overall structure.

[0032] A cable quick-install distribution box for rail transit, such as Figure 1-7 As shown, it includes a box body 1, in which a fixed connecting member 7 is fixedly installed in a symmetrical structure, a fixed block 8 is arranged on the fixed connecting member 7, a plurality of movable blocks 9 are arranged in the fixed block 8, a first spring 14 is fixedly installed in the movable block 9, a clamping block 15 is fixedly connected to the end of the first spring 14, the movable block 9 is an L-shaped structure, a second spring 16 is fixedly connected to the end of the movable block 9, a screw rod 13 is movably installed in the fixed block 8, a plurality of groups of protrusions 17 are fixedly installed on the screw rod 13, the protrusions 17 are located between the clamping blocks 15, a gear 10 is rotatably connected to the outer side of the screw rod 13, the gear 10 is located on the right side of the box body 1, a movable groove 5 for matching the gear 10 is opened on the right side of the box body 1, a rack 11 is slidably installed in the movable groove 5, a connecting rod 6 is fixedly connected to the end of the rack 11, and the gear 10 is threadedly connected to the screw rod 13.

[0033] When in use, hold the cable to squeeze the incoming line of the movable block 9, and then slide the connecting rod 6 downward. Through the mutual cooperation between the rack 11 and the gear 10, the screw rod 13 can be rotated in the gear 10, so that the screw rod 13 moves to the left. When the screw rod 13 moves to the left, it drives the protrusion 17 to move to the left at the same time, thereby squeezing the clamping block 15. Through the performance of the first spring 14 itself, the clamping block 15 can be moved outward, and then the cable can be clamped into the clamping block 15. When the cable is located between the clamping blocks 15, the pressure on the movable block 9 is released. Through the performance of the second spring 16 itself, the movable block 9 can be reset, and the protrusion 17 is disengaged from between the clamping blocks 15. At the same time, through the performance of the first spring 14 itself, the clamping block 15 can clamp and fix the cable more tightly, which is more convenient to use, thereby improving the practicality of the cable quick-install distribution box of the entire rail transit.

[0034] Furthermore, the inlet pipe 3 and the limiting structure 4 are provided to facilitate the relatively stable introduction of the cables into the box body 1. The cooperation between the provided box door 2 and the handle can enable the entire cable quick-install distribution box to be put into normal use, thereby protecting the structure inside the box body 1.

[0035] In this embodiment, the slide groove 12 is provided to enable the movable block 9 to slide smoothly in the fixed block 8. Secondly, the rubber pad in the clamping block 15 can better clamp and fix the cable. When the screw rod 13 is located in the middle position of the second spring 16, the screw rod 13 and the protrusion 17 can move flexibly in the fixed block 8 in cooperation with the cavity provided in the fixed block 8. Finally, the coil spring is provided to facilitate the rapid reset of the auxiliary gear 10 for subsequent use. When the slider is slidably connected to the side wall of the movable groove 5, the connecting rod 6 can slide up and down flexibly in the movable groove 5.

[0036] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A rail transit cable quick-install distribution box, comprising a box body (1), characterized in that: A fixed connecting piece (7) is fixedly installed in the box body (1) in a symmetrical structure, a fixed block (8) is arranged on the fixed connecting piece (7), a plurality of movable blocks (9) are arranged in the fixed block (8), a first spring (14) is fixedly installed in the movable block (9), a clamping block (15) is fixedly connected to the end of the first spring (14), the movable block (9) is an L-shaped structure, a second spring (16) is fixedly connected to the end of the movable block (9), a screw rod (13) is movably installed in the fixed block (8), and the screw rod (13) is fixedly installed in the fixed block (8). A plurality of groups of protrusions (17) are fixedly mounted on the rod (13), the protrusions (17) are located between the clamping blocks (15), a gear (10) is rotatably connected to the outer side of the screw rod (13), the gear (10) is located on the right side of the box body (1), a movable groove (5) for use with the gear (10) is opened on the right side of the box body (1), a rack (11) is slidably mounted in the movable groove (5), a connecting rod (6) is fixedly connected to the end of the rack (11), and the gear (10) is threadedly connected to the screw rod (13).

2. The rail transit cable quick-install junction box according to claim 1 is characterized in that: A plurality of groups of inlet pipes (3) are provided on the top of the box body (1), and a limiting structure (4) is arranged inside the inlet pipes (3).

3. The cable quick-install distribution box for rail transit according to claim 1, characterized in that: The front of the box body (1) is rotatably connected to a box door (2), and a handle is provided on the box door (2).

4. The rail transit cable quick-install junction box according to claim 1, characterized in that: A slide groove (12) is provided in the fixed block (8) for use with the movable block (9), and a rubber pad is provided inside the clamping block (15).

5. The rail transit cable quick-install distribution box according to claim 1, characterized in that: The screw rod (13) is located in the middle of the second spring (16), and a cavity for cooperating with the screw rod (13) is provided in the fixing block (8).

6. The cable quick-install distribution box for rail transit according to claim 1, characterized in that: Coil springs are arranged on both sides of the gear (10), a slider is arranged at the end of the connecting rod (6), and the slider is slidably connected to the side wall of the movable groove (5).

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