Quick cable connecting device of low-voltage distribution box

Abstract

The utility model relates to the technical field of wire connection, in particular to a quick cable connecting device for a low-voltage distribution box, which comprises a shell and a reinforcing mechanism. A through hole is formed in the shell; the two reinforcing mechanisms are arranged at openings of the through holes correspondingly and comprise mounting blocks arranged on the shell, two symmetrically-distributed clamping plates, two pull rods arranged on the clamping plates and slidably connected with the mounting blocks, convex rings coaxially arranged on the pull rods and second springs with the two ends arranged on the convex rings and the mounting blocks correspondingly. And the pull plate is arranged on the pull rod. According to the utility model, cable ends can be quickly connected, the stability of cable connection can be greatly improved, and the normal use of the distribution box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wire connection, in particular to a cable quick connection device of a low-voltage distribution box. Background Art

[0002] The low-voltage distribution box is a device used for low-voltage power distribution in the power system. It is usually installed in the distribution room to distribute and control electric energy. The cables in the low-voltage distribution box are mainly used for the transmission and distribution of electric energy. When the cables in the low-voltage distribution box are quickly connected, the ends of the two cables are often placed in the same wiring trough, and the two cable ends are tightly connected to complete the quick connection of the cables.

[0003] Chinese patent announcement number CN218602758U discloses a low-voltage cable quick connection device, including a body and a plurality of wiring slots arranged side by side on the body, the plurality of wiring slots are arranged at intervals along the left and right directions of the body and penetrate the front and rear ends of the body, and a plurality of fixing mechanisms are arranged corresponding to the plurality of wiring slots, the fixing mechanisms include a movable slot opened in the body and connected to the corresponding wiring slots, a connecting rod passing through the movable slot, a fixing plate movably arranged in the wiring slot and fixed to the lower end of the connecting rod, and a spring sleeved on the connecting rod, the top of the movable slot is provided with an inner flange, the lower end of the spring abuts against the fixing plate, and the upper end abuts against the inner flange, the upper end of the connecting rod passes through the movable slot and is connected to a pull plate, and the body is provided with a plurality of limiting mechanisms, which are respectively used to limit the corresponding pull plates. This cable quick connection device can achieve the effect of tightly fixing the cable wiring position.

[0004] However, the above technical solution has the following shortcomings: the connecting device can only connect and fix the end of the cable when in use, but the cable is often dragged during actual use. If only the end of the cable is fixed, the fixed part is prone to loosening, and the fitting surface between the fixing plate and the cable is a plate-like plane, the extrusion fixing effect is poor, and the extrusion force cannot be adjusted, which reduces the stability of the cable end connection. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a cable quick connection device for a low-voltage distribution box, which can not only quickly connect the cable ends, but also greatly improve the stability of the cable connection and ensure the normal use of the distribution box.

[0006] The technical solution of the present utility model is a cable quick connection device for a low-voltage wiring box, including a housing and a reinforcement mechanism; through holes are provided on the housing; two reinforcement mechanisms are respectively arranged at the openings of the through holes, including mounting blocks arranged on the housing, two symmetrically distributed clamping plates, two pull rods arranged on the clamping plates and slidably connected to the mounting blocks, convex rings coaxially arranged on the pull rods, second springs with two ends respectively arranged on the convex rings and the mounting blocks, and pull plates arranged on the pull rods.

[0007] Preferably, the shape of the clamping plate is arc-shaped, and a plurality of anti-slip balls are arranged on the clamping plate.

[0008] Preferably, two fixing rods are arranged on the mounting block, a top block is arranged on the fixing rod, and the second spring is always in a compressed state.

[0009] Preferably, a connection mechanism is arranged inside the housing, and the connection mechanism includes a pressing plate slidably arranged on the housing, a connection block arranged on the pressing plate, a first extrusion plate arranged on the connection block, a second extrusion plate arranged inside the through hole, and a lifting assembly arranged on the housing, and the connection block is slidably arranged inside the housing.

[0010] Preferably, the lifting assembly includes a fixing frame arranged on the housing, a threaded rod threadedly connected to the fixing frame, a bearing arranged on the pressing plate, and a knob coaxially arranged on the threaded rod, and the end of the threaded rod away from the knob is inserted into the inner hole of the bearing.

[0011] Preferably, the shape of the first extrusion plate is arc-shaped, and a plurality of elastic pads are arranged on both the first extrusion plate and the second extrusion plate.

[0012] Preferably, four symmetrically distributed buffer components are arranged on the pressing plate, and the buffer components include fixing blocks arranged on the pressing plate and first springs with two ends respectively arranged on the fixing blocks and the housing, and the fixing blocks are slidably connected to the housing.

[0013] Preferably, a stabilizing rod slidably connected to the housing is arranged on the fixing block, and the first spring is sleeved outside the stabilizing rod.

[0014] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0015] 1. The connection mechanism provided by the present utility model can quickly connect the end of the cable, and the buffer component provided can buffer the operation during connection, facilitating the operator to control the extrusion force on the cable end and ensuring the normal use of the cable.

[0016] 2. The reinforcement mechanism provided by the present utility model can reinforce the part of the cable at a certain distance from the end, avoiding the loosening of the end connection part when the cable is accidentally pulled, and the operation is simple and convenient, with good practicability. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the housing;

[0019] Figure 3 It is a schematic structural diagram of the reinforcement mechanism;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the mounting block.

[0021] Reference numerals: 1, housing; 2, pressing plate; 3, connecting block; 4, first pressing plate; 5, through hole; 6, second pressing plate; 7, elastic pad; 8, fixing frame; 9, threaded rod; 10, knob; 11, bearing; 12, fixing block; 13, first spring; 14, stabilizing rod; 15, mounting block; 16, clamping plate; 17, pull rod; 18, convex ring; 19, second spring; 20, pull plate; 21, fixing rod; 22, top block; 23, anti-slip ball. Detailed Description of the Invention

[0022] Embodiment 1

[0023] As Figures 1 - 4 shown, a cable quick connection device for a low-voltage wiring box proposed in this embodiment includes a housing 1 and a reinforcement mechanism; a through hole 5 is provided on the housing 1.

[0024] As Figure 1 , Figure 3 and Figure 4 shown, two reinforcement mechanisms are respectively arranged at the openings of the through hole 5, and include mounting blocks 15 arranged on the housing 1, two symmetrically distributed clamping plates 16, two pull rods 17 arranged on the clamping plates 16 and slidably connected to the mounting blocks 15, convex rings 18 coaxially arranged on the pull rods 17, second springs 19 respectively arranged at the two ends of the convex rings 18 and the mounting blocks 15, and pull plates 20 arranged on the pull rods 17. The clamping plates 16 are arc-shaped, and a plurality of anti-slip balls 23 are arranged on the clamping plates 16. The arrangement of the arc-shaped clamping plates 16 can tightly clamp the outer sheath of the cable, and at the same time, the cooperation of a plurality of anti-slip balls 23 improves the friction between the clamping plates 16 and the outer sheath of the cable.

[0025] Two fixing rods 21 are arranged on the mounting block 15, and top blocks 22 are arranged on the fixing rods 21. The second spring 19 is always in a compressed state. When the pull plate 20 abuts against the top block 22, the spring is still in a compressed state at this time, ensuring that the clamping function can still be achieved when the thickness and diameter of the cable are small.

[0026] In this embodiment, before the end of the cable extends into the through hole 5, hold the pulling plate 20 and pull the pull rod 17 outward. At the same time, the convex ring 18 compresses the second spring 19. Then, insert the end of the cable into the interior of the through hole 5 and fix it. Then, release the pulling plate 20. Under the elastic force of the second spring 19, the pull rod 17 pushes the clamping plate 16 to tightly clamp the outer sheath of the cable, thereby fixedly clamping the part of the cable at a certain distance from the end. This can avoid the loosening of the end connection part when the cable is pulled. Moreover, the operation is simple and convenient, with good practicability.

[0027] Embodiment Two

[0028] As Figure 1 and Figure 2 shown, a cable quick connection device for a low-voltage distribution box proposed in this embodiment. Compared with Embodiment One, in this embodiment, a connection mechanism is arranged inside the housing 1. The connection mechanism includes a pressing plate 2 slidably arranged on the housing 1, a connection block 3 arranged on the pressing plate 2, a first pressing plate 4 arranged on the connection block 3, a second pressing plate 6 arranged inside the through hole 5, and a lifting assembly arranged on the housing 1. The connection block 3 is slidably arranged inside the housing 1. The shape of the first pressing plate 4 is arc-shaped. A plurality of elastic pads 7 are arranged on both the first pressing plate 4 and the second pressing plate 6. The elastic pads 7 are used to protect the cable end from excessive wear caused by excessive and rapid pressure.

[0029] The lifting assembly includes a fixing frame 8 arranged on the housing 1, a threaded rod 9 threadedly connected to the fixing frame 8, a bearing 11 arranged on the pressing plate 2, and a knob 10 coaxially arranged on the threaded rod 9. The end of the threaded rod 9 away from the knob 10 is inserted into the inner hole of the bearing 11.

[0030] In this embodiment, when the ends of two cables both extend into the through hole 5 and are wound together, hold the knob 10 and rotate the threaded rod 9. With the cooperation of the bearing 11, the threaded rod 9 is screwed with the fixing frame 8 and pushes the pressing plate 2 to move towards the interior of the housing 1. Further, the pressing plate 2 pushes the connection block 3 and the first pressing plate 4 to move until the first pressing plate 4 and the second pressing plate 6 tightly fix the wound part of the cable end. The operation is simple and convenient.

[0031] Embodiment Three

[0032] As Figure 2 shown, a cable quick connection device for a low-voltage distribution box proposed in this embodiment. Compared with Embodiment Two, in this embodiment, four symmetrically distributed buffer components are arranged on the pressing plate 2. The buffer components include a fixing block 12 arranged on the pressing plate 2 and a first spring 13 with two ends respectively arranged on the fixing block 12 and the housing 1. The fixing block 12 is slidably connected to the housing 1.

[0033] A stabilizing rod 14 slidably connected to the housing 1 is provided on the fixed block 12, and the first spring 13 is sleeved outside the stabilizing rod 14. The stabilizing rod 14 is used to prevent the first spring 13 from skewing when compressed, ensuring the service life of the first spring 13.

[0034] In this embodiment, the buffer assembly can prevent the cable end from being severely damaged due to excessive extrusion force when the connection mechanism fixes the cable end. When the pressing plate 2 moves towards the inside of the housing 1, it will drive the fixed block 12 to move accordingly. The fixed block 12 squeezes the first spring 13, thereby achieving a certain buffering effect, facilitating the operator to control the extrusion force on the cable end, and ensuring the normal use of the cable.

[0035] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims

1. A cable quick connection device for a low-voltage distribution box, characterized in that: include: A housing (1) having a through hole (5); The reinforcement mechanism is two in number and is respectively arranged at the opening of the through hole (5), comprising a mounting block (15) arranged on the housing (1), two symmetrically distributed clamping plates (16), two pull rods (17) arranged on the clamping plates (16) and slidably connected to the mounting block (15), a convex ring (18) coaxially arranged on the pull rod (17), a second spring (19) with two ends respectively arranged on the convex ring (18) and the mounting block (15), and a pull plate (20) arranged on the pull rod (17).

2. A cable quick connection device for a low-voltage distribution box according to claim 1, characterized in that: The clamping plate (16) is in an arc shape, and a plurality of anti-slip balls (23) are arranged on the clamping plate (16).

3. A cable quick connection device for a low-voltage distribution box according to claim 1, characterized in that: Two fixing rods (21) are arranged on the mounting block (15), a top block (22) is arranged on the fixing rod (21), and the second spring (19) is always in a compressed state.

4. A cable quick connection device for a low-voltage distribution box according to claim 1, characterized in that: A connecting mechanism is arranged inside the shell (1), the connecting mechanism comprising a pressing plate (2) slidably arranged on the shell (1), a connecting block (3) arranged on the pressing plate (2), a first extrusion plate (4) arranged on the connecting block (3), a second extrusion plate (6) arranged inside the through hole (5), and a lifting assembly arranged on the shell (1), wherein the connecting block (3) is slidably arranged inside the shell (1).

5. A cable quick connection device for a low-voltage distribution box according to claim 4, characterized in that: The lifting assembly comprises a fixing frame (8) arranged on a housing (1), a threaded rod (9) threadedly connected to the fixing frame (8), a bearing (11) arranged on a pressure plate (2), and a knob (10) coaxially arranged on the threaded rod (9), wherein one end of the threaded rod (9) away from the knob (10) is inserted into the inner hole of the bearing (11).

6. A cable quick connection device for a low-voltage distribution box according to claim 4, characterized in that: The first extrusion plate (4) is in an arc shape, and a plurality of elastic pads (7) are provided on the first extrusion plate (4) and the second extrusion plate (6).

7. A cable quick connection device for a low voltage distribution box according to claim 4, characterized in that: Four symmetrically distributed buffer components are arranged on the pressure plate (2), and the buffer components include a fixed block (12) arranged on the pressure plate (2) and a first spring (13) with two ends respectively arranged on the fixed block (12) and the shell (1), and the fixed block (12) is slidably connected to the shell (1).

8. A cable quick connection device for a low-voltage distribution box according to claim 7, characterized in that: A stabilizing rod (14) slidably connected to the housing (1) is provided on the fixed block (12), and the first spring (13) is sleeved on the outside of the stabilizing rod (14).

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