Grounding device for a cable branch box

Abstract

The utility model discloses a grounding device of cable branch box belongs to cable branch box field. A grounding device of cable branch box, including the box, the bottom fixedly connected with cable of box, the side away from the box of cable is electrically connected with grounding device, the surface fixedly connected with lifting plate of grounding device, the bottom of box is provided with transmission block through transmission structure, the front and back of transmission block all are fixedly connected with slide rod, the surface of slide rod is equipped with crank, the side away from transmission block of crank extends to the outside of lifting plate and is connected with lifting plate swing through the pin shaft, and transmission structure includes the connecting frame fixedly connected at the bottom of box, and the inside movable connection of connecting frame has two -way screw rod through bearing. The utility model discloses a grounding device utilizes rigid mechanical structure to realize vertical lifting, avoids the displacement of traditional flexible cable because of wind force, vibration, and action reliable and not easy to jam.

Description

Technical Field

[0001] This utility model relates to the field of cable branch box technology, and in particular to a grounding device for a cable branch box. Background Technology

[0002] Cable distribution boxes are crucial equipment in power distribution systems. They are mainly used to branch, connect, or transfer cable lines without cutting off the main cable. They are equivalent to "splitters" or "junction boxes" in cable networks and are common facilities in urban power distribution networks, industrial and mining enterprises, residential communities, commercial centers, and other places.

[0003] For example, patent application number 202411252788.5 published on the China Patent Network, entitled "A Grounding Device for a Cable Branch Box," includes a copper frame, a connecting wire fixedly connected to the copper frame, a connecting pipe fixedly connected to the copper frame, a housing fixedly connected to the copper frame, a grounding copper lug fixedly connected to the housing, the grounding copper lug being fixedly connected to the connecting wire, and a warning frame slidably connected between the copper frame and the housing. The side of the warning frame near the connecting wire is made of iron, and the warning frame is slidably connected to the connecting pipe, with the connecting pipe blocking the warning frame. This invention utilizes the magnetic effect generated by the leaking current when the cable branch box leaks electricity, causing the warning part of the warning frame to automatically move down to the glass window of the connecting pipe, thus alerting workers to the leakage situation and facilitating timely inspection and repair of the leaking electrical components.

[0004] However, the existing grounding device adjustment method is relatively cumbersome, mainly relying on direct plugging and connection through grounding cable. The grounding cable itself is flexible, which affects the connection strength between the grounding end and the connection end, making it susceptible to external environmental interference. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the flexible grounding method in the prior art is easily affected by external environmental interference, and to propose a grounding device for cable branch boxes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A grounding device for a cable branch box includes a box body. A cable is fixedly connected to the bottom of the box body. A grounding device is electrically connected to the side of the cable away from the box body. A lifting plate is fixedly connected to the surface of the grounding device. A transmission block is provided at the bottom of the box body through a transmission structure. A sliding rod is fixedly connected to both the front and back of the transmission block. A crank is sleeved on the surface of the sliding rod. The side of the crank away from the transmission block extends to the outside of the lifting plate and is movably connected to the lifting plate through a pin.

[0007] As a preferred technical solution of this application, the transmission structure includes a connecting frame fixedly connected to the bottom of the housing. A bidirectional screw is movably connected inside the connecting frame via a bearing. The transmission block is sleeved on the surface of the bidirectional screw and threadedly connected to the bidirectional screw. Both ends of the bidirectional screw pass through to both sides of the connecting frame and are fixedly connected to a rotating wheel.

[0008] As a preferred technical solution of this application, the bottom of the connecting frame is set to be hollow, and the bottom of the transmission block is fixedly connected to a limiting block located inside the connecting frame, and the limiting block is slidably connected to the connecting frame.

[0009] As a preferred technical solution of this application, an electrical component is installed inside the housing, and a support plate is provided on both sides of the electrical component, with the inner side of the support plate in contact with the surface of the electrical component.

[0010] As a preferred technical solution of this application, guide rods are fixedly connected to both sides of the inner side of the box, and the support plate is sleeved on the surface of the guide rods and slidably connected to the guide rods.

[0011] As a preferred technical solution of this application, connecting blocks are fixedly connected to both sides of the bottom of the inner wall of the box. A swing rod is movably connected to the inner side of the connecting block through a pin. The side of the swing rod away from the connecting block extends to the outer side of the support plate and is fixedly connected to a pressure rod located on the outer side of the support plate.

[0012] As a preferred technical solution of this application, a force-bearing rod is fixedly connected to the side of the swing rod near the connecting block. The side of the force-bearing rod away from the swing rod extends to the outside of the slide rod and contacts the surface of the slide rod. During the process of the transmission block carrying the slide rod to move outward, it can squeeze the force-bearing rod to swing.

[0013] As a preferred technical solution of this application, a spring plate is fixedly connected to the outer side of the swing arm, and the side of the spring plate away from the swing arm contacts the bottom of the inner wall of the box, and the spring plate is elastic.

[0014] As a preferred technical solution of this application, a conductive plate is fixedly connected to the inner side of the support plate, the inner side of the conductive plate is in contact with the electrical components, and the conductive plate is connected to the housing through a cable.

[0015] As a preferred technical solution of this application, the surface of the slide bar is fitted with a roller, and the outer surface of the roller contacts the inner side of the force-bearing rod.

[0016] Compared with the prior art, this utility model provides a grounding device for a cable branch box, which has the following advantages: 1. The grounding device of this cable branch box uses a rigid mechanical structure to achieve vertical lifting through the grounding device, avoiding the displacement caused by wind and vibration of traditional flexible cables. The operation is reliable and not easy to jam.

[0017] 2. The grounding device of this cable branch box uses a bidirectional screw to drive the transmission block with a thread to achieve millimeter-level displacement accuracy, ensuring stable grounding of the grounder.

[0018] 3. The grounding device of this cable branch box has a hollow structure that facilitates observation of the internal mechanism, allows for quick troubleshooting, prevents rotational deviation, and ensures accurate movement trajectory of the slide rod.

[0019] 4. The grounding device of the cable branch box ensures that the clamping force acts perpendicularly on the surface of the electrical components by sliding the support plate along the guide rod, thus avoiding lateral friction damage.

[0020] 5. The grounding device of the cable branch box, by setting a guide rod, can limit the support plate and improve the displacement stability of the support plate.

[0021] 6. The grounding device of the cable branch box, by setting a connecting block, a swing rod and a pressure rod, can squeeze and fix the support plate, thereby improving the clamping stability of the support plate.

[0022] 7. The grounding device of this cable branch box, by setting a force-bearing rod, can utilize the power of the screw sleeve, saving the operation steps of the additional operating lever.

[0023] 8. The grounding device of the cable branch box, by setting a spring plate, enables the support plate to have an elastic reset effect, further improving the stability of the support plate.

[0024] 9. The grounding device of the cable branch box forms a grounding path independent of the box body by setting a conductive plate, which prevents grounding failure caused by corrosion of the box body, and at the same time can protect electrical components.

[0025] 10. The grounding device of the cable branch box, by setting rollers, can protect the slide rod and reduce the wear caused by the slide rod and the load-bearing rod when they come into contact and rub against each other. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a schematic cross-sectional view of the main structure of this utility model; Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Housing; 2. Cable; 3. Grounding device; 4. Lifting plate; 5. Transmission block; 6. Slide rod; 7. Crank; 8. Connecting frame; 9. Bidirectional screw; 10. Rotary wheel; 11. Limiting block; 12. Electrical components; 13. Support plate; 14. Guide rod; 15. Connecting block; 16. Swing rod; 17. Pressure rod; 18. Force-bearing rod; 19. Spring plate; 20. Conductive plate; 21. Roller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example 1: Reference Figure 1-6A grounding device for a cable branch box includes a box body 1. A cable 2 is fixedly connected to the bottom of the box body 1. A grounding device 3 is electrically connected to the side of the cable 2 away from the box body 1. A lifting plate 4 is fixedly connected to the surface of the grounding device 3. A transmission block 5 is provided at the bottom of the box body 1 through a transmission structure. A sliding rod 6 is fixedly connected to both the front and back of the transmission block 5. A crank 7 is sleeved on the surface of the sliding rod 6. The side of the crank 7 away from the transmission block 5 extends to the outside of the lifting plate 4 and is movably connected to the lifting plate 4 through a pin. Vertical lifting is achieved through the grounding device 3 using a rigid mechanical structure, avoiding the vertical lifting of the traditional flexible cable 2 due to wind and vibration. The displacement caused by movement is reliable and not easily jammed. The transmission structure includes a connecting frame 8 fixedly connected to the bottom of the housing 1. A bidirectional screw 9 is movably connected to the inside of the connecting frame 8 via bearings. A transmission block 5 is sleeved on the surface of the bidirectional screw 9 and threadedly connected to the bidirectional screw 9. The two ends of the bidirectional screw 9 pass through to both sides of the connecting frame 8 and are fixedly connected to a rotating wheel 10. The bottom of the connecting frame 8 is hollowed out. A limiting block 11 located inside the connecting frame 8 is fixedly connected to the bottom of the transmission block 5. The limiting block 11 is slidably connected to the connecting frame 8. An electrical component 12 is installed inside the housing 1. The two ends of the electrical component 12... Support plates 13 are provided on both sides, with the inner side of the support plates 13 contacting the surface of the electrical components 12. Guide rods 14 are fixedly connected to both sides inside the housing 1. The support plates 13 are sleeved on the surface of the guide rods 14 and slidably connected to the guide rods 14. Connecting blocks 15 are fixedly connected to both sides of the bottom of the inner wall of the housing 1. A swing rod 16 is movably connected to the inner side of the connecting block 15 via a pin. The side of the swing rod 16 away from the connecting block 15 extends to the outer side of the support plate 13 and is fixedly connected to a pressure rod 17 located on the outer side of the support plate 13. A force-bearing rod 18 is fixedly connected to the side of the swing rod 16 near the connecting block 15. The force-bearing rod 18 is further away from the connecting block 15. The side of the swing rod 16 extends to the outside of the slide rod 6 and contacts the surface of the slide rod 6. During the process of the transmission block 5 carrying the slide rod 6 to move outward, it can squeeze the force rod 18 to swing. The outside of the swing rod 16 is fixedly connected to the spring plate 19. The side of the spring plate 19 away from the swing rod 16 contacts the bottom of the inner wall of the box 1. The spring plate 19 is elastic. The inside of the support plate 13 is fixedly connected to the conductive plate 20. The inside of the conductive plate 20 contacts the electrical device 12. The conductive plate 20 is connected to the box 1 through the cable 2. The surface of the slide rod 6 is fitted with a roller 21. The outer surface of the roller 21 contacts the inner side of the force rod 18.

[0030] Specifically, the grounding device of this cable branch box operates as follows during transportation: the transmission block 5 on the outer side presses against the force-bearing rod 18 via the sliding rod 6 on its surface. The force-bearing rod 18 drives the swing rod 16 to swing and uses the pressure rod 17 to press against the support plate 13. The inner side of the support plate 13 remains in contact with the electrical components 12, ensuring the stability of the electrical components 12 during transportation. When grounding is required, the operator rotates the rotating wheel 10 to drive the bidirectional screw 9 to rotate, causing the transmission block 5 to move outward, so that the sliding rods 6 fixed on both sides of it move synchronously. The movement of the slide rod 6 is converted into the downward displacement of the lifting plate 4 through the crank 7 mechanism, thereby pressing the grounding device 3 into the ground and forming a rigid grounding circuit. At the same time, the roller 21 on the surface of the slide rod 6 is disengaged from the force rod 18. At this time, the spring plate 19 releases the elastic force, forcing the swing rod 16 to rotate around the pin shaft, driving the rod on its outer side to push the support plate 13 to slide inward along the guide rod 14. The conductive plate 20 on the inner side of the support plate 13 then tightly clamps the electrical device 12, so that the electrical device 12, the conductive plate 20, the box 1, and the grounding device 3 form a complete grounding path.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grounding device for a cable branch box, comprising a box body (1), characterized in that, A cable (2) is fixedly connected to the bottom of the box (1). A grounding device (3) is electrically connected to the side of the cable (2) away from the box (1). A lifting plate (4) is fixedly connected to the surface of the grounding device (3). A transmission block (5) is provided at the bottom of the box (1) through a transmission structure. A slide rod (6) is fixedly connected to both the front and back of the transmission block (5). A crank (7) is sleeved on the surface of the slide rod (6). The side of the crank (7) away from the transmission block (5) extends to the outside of the lifting plate (4) and is movably connected to the lifting plate (4) through a pin.

2. The grounding device for a cable branch box according to claim 1, characterized in that, The transmission structure includes a connecting frame (8) fixedly connected to the bottom of the housing (1). A bidirectional screw (9) is movably connected inside the connecting frame (8) via a bearing. The transmission block (5) is sleeved on the surface of the bidirectional screw (9) and threadedly connected to the bidirectional screw (9). The two ends of the bidirectional screw (9) pass through to both sides of the connecting frame (8) and are fixedly connected to a rotating wheel (10).

3. The grounding device for a cable branch box according to claim 2, characterized in that, The bottom of the connecting frame (8) is hollowed out, and the bottom of the transmission block (5) is fixedly connected to a limiting block (11) located inside the connecting frame (8). The limiting block (11) is slidably connected to the connecting frame (8).

4. The grounding device for a cable branch box according to claim 3, characterized in that, The box (1) is equipped with an electrical component (12), and a support plate (13) is provided on both sides of the electrical component (12). The inner side of the support plate (13) is in contact with the surface of the electrical component (12).

5. The grounding device for a cable branch box according to claim 4, characterized in that, Guide rods (14) are fixedly connected to both sides inside the box (1), and the support plate (13) is sleeved on the surface of the guide rods (14) and slidably connected to the guide rods (14).

6. The grounding device for a cable branch box according to claim 4, characterized in that, Both sides of the bottom of the inner wall of the box (1) are fixedly connected to connecting blocks (15). The inner side of the connecting block (15) is movably connected to a swing rod (16) via a pin. The side of the swing rod (16) away from the connecting block (15) extends to the outside of the support plate (13) and is fixedly connected to a pressure rod (17) located outside the support plate (13).

7. A grounding device for a cable branch box according to claim 6, characterized in that, The swing rod (16) is fixedly connected to a force rod (18) on the side near the connecting block (15). The force rod (18) extends to the outside of the slide rod (6) and contacts the surface of the slide rod (6) on the side away from the swing rod (16). The transmission block (5) can squeeze the force rod (18) to swing as it carries the slide rod (6) to the outside.

8. The grounding device for a cable branch box according to claim 6, characterized in that, A spring plate (19) is fixedly connected to the outside of the swing rod (16). The side of the spring plate (19) away from the swing rod (16) contacts the bottom of the inner wall of the box (1). The spring plate (19) is elastic.

9. A grounding device for a cable branch box according to claim 4, characterized in that, A conductive plate (20) is fixedly connected to the inner side of the support plate (13). The inner side of the conductive plate (20) is in contact with the electrical device (12). The conductive plate (20) is connected to the housing (1) through a cable (2).

10. A grounding device for a cable branch box according to claim 7, characterized in that, The surface of the slide bar (6) is fitted with a roller (21), and the outer surface of the roller (21) is in contact with the inner side of the force-bearing rod (18).

Images