Joint protector

Abstract

This utility model discloses a connector protection device, belonging to the field of cable protection technology. It includes a protective box with extension ears integrated at the four corners of its outer wall. A lead screw is rotatably connected inside each extension ear, and a support foot is connected to the bottom of the lead screw via a ball joint. Connecting holes are symmetrically arranged on both sides of the protective box, and fixing ears are located above the connecting holes on both sides. A sleeve is movably connected inside each connecting hole, and sealing rings are embedded in both the inner ring of the connecting hole and the inner ring of the sleeve. This utility model utilizes the sleeve and conduit to connect, stretching to tighten the sleeve end against the protective box. Simultaneously, rotating the lead screw causes the support foot to move down and contact the bottom of the protective box. After the protective box is stable and secure, a self-tapping screw passes through the fixing ears to fix the sleeve. This improves the convenience and stability of the device during installation and use, making it easier for workers to reach into the low-voltage wiring shaft for operations.

Description

Technical Field

[0001] This utility model belongs to the field of cable protection technology, specifically a connector protection device. Background Technology

[0002] The main function of low-voltage cables is to transmit and control information. Low-voltage cables transmit smaller currents and voltages, but at higher frequencies. They are mainly used for information transmission and control. Their characteristics include low voltage, low current, and low power. The main considerations are the fidelity and speed of information transmission.

[0003] During the laying of low-voltage cables, conduit protection is required. The general construction process is to excavate the foundation pit, bury the conduit, thread the cable, and backfill the foundation pit. At the same time, low-voltage wells are needed at the nodes where the conduit connects and branches. Low-voltage wells are small in size and do not take up much space, making it convenient for cable connection.

[0004] In actual use, it was found that due to the small internal space of the low-voltage well, workers could only reach in to work. The cable joints in the low-voltage well did not have any protective devices and were just curled up at the bottom of the well. Therefore, it is necessary to protect them based on the existing structure to improve the integrity of the cable joints and reduce the impact of external accidental factors. Thus, a structure that is easy to install and can protect the joints was designed. Utility Model Content

[0005] The purpose of this utility model is to provide a joint protection device in order to solve the above-mentioned problems.

[0006] The technical solution adopted by this utility model is as follows: a joint protection device, including a protective box, an extension ear is integrally provided at the four corners of the outer wall of the protective box, a lead screw is rotatably connected inside the extension ear, and a support foot is connected to the bottom of the lead screw through a ball joint;

[0007] The protective box has symmetrical connection holes on both sides, and fixed ears are provided on both sides of the protective box above the connection holes. A sleeve is movably connected inside the connection hole, and a sealing ring is embedded in both the inner ring of the connection hole and the inner ring of the sleeve.

[0008] A cover plate is movably connected to the top of the protective box by bolts, and a sealing strip is provided at the bottom of the cover plate. The protective box and the cover plate are connected by threads at the four corners.

[0009] The protective box is equipped with a limiting component that can limit the cable movement; the limiting component includes: limiting groove A, fastener, connecting ear, limiting groove B, locking teeth, and connecting post;

[0010] The bottom of the protective box is equipped with a limiting groove A, and a limiting groove B is movably installed above the limiting groove A. A fastener is provided on one upper edge of both the limiting groove A and the limiting groove B, and a connecting ear is provided on the other upper edge of both the limiting groove A and the limiting groove B. A locking tooth is provided at the bottom of one side of the limiting groove B corresponding to the fastener, and a connecting post is provided at the other side of the limiting groove B corresponding to the connecting ear.

[0011] The limiting grooves A and B are made of TPU, and threaded lugs are provided on both sides of the limiting groove A.

[0012] The fastener and the locking tooth are connected in a one-way direction, and the connecting ear and the connecting post are connected in a fitting manner.

[0013] The limiting groove A and the limiting groove B are each provided with a semi-circular slot at their corresponding upper and lower positions, which can form a ring.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the sleeve and the conduit are connected by a loop, and the sleeve end is stretched to make it press tightly against the protective box. At the same time, by rotating the screw, the support foot moves down and contacts the bottom of the protective box. After the protective box is stable and secure, the sleeve is fixed by passing a self-tapping screw through the fixing ear. This improves the convenience and stability of the device during installation and use, and makes it easier for workers to put their hands into the weak current well for operation.

[0016] 2. In this utility model, the number of limiting grooves B is increased according to the requirements, so that the connecting ear and the connecting post are connected in a fitting manner. Semi-circular slots are provided at the upper and lower corresponding positions of limiting grooves A and B, which can form a ring, thereby bundling the cable and improving its practicality. The cable connector is protected by the protective box, which improves safety and reduces the impact of accidents. Attached Figure Description

[0017] Figure 1 This is a simplified schematic diagram of the three-dimensional structure of this utility model;

[0018] Figure 2 This is a simplified schematic diagram of a partial three-dimensional structure of the present invention;

[0019] Figure 3 This is a simplified schematic diagram of a partial planar structure in this utility model;

[0020] Figure 4 This is a simplified schematic diagram of a partial planar structure in this utility model.

[0021] The markings in the diagram are: 1. Protective box; 101. Extension ear; 2. Lead screw; 201. Support foot; 3. Connecting hole; 301. Fixing ear; 4. Sleeve; 5. Cover plate; 501. Sealing strip; 6. Sealing ring; 7. Limiting groove A; 701. Fastener; 702. Connecting ear; 8. Limiting groove B; 801. Clamping tooth; 802. Connecting post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model:

[0024] Reference Figure 1-4 A joint protection device includes a protective box 1. The protective box 1 has extension ears 101 integrated at the four corners of its outer wall. The extension ears 101 are rotatably connected to a lead screw 2. The bottom of the lead screw 2 is connected to a support foot 201 through a ball joint.

[0025] The protective box 1 has symmetrical connection holes 3 on both sides. The protective box 1 has fixing ears 301 on both sides above the connection holes 3. The sleeve 4 is movably connected inside the connection hole 3. The inner ring of the connection hole 3 and the inner ring of the sleeve 4 are both embedded with sealing rings 6. The sealing ring 6 is made of nitrile rubber, which has the advantages of high elasticity and good weather resistance. The sealing ring 6 extends into an "eight" shape, which can further increase the sealing effect.

[0026] The protective box 1 is movably connected to the cover plate 5 by bolts. The bottom of the cover plate 5 is provided with a sealing strip 501. The protective box 1 and the cover plate 5 are connected by threads at the four corners, so that the protective box 1 and the cover plate 5 can be installed. At the same time, the sealing strip 501 is used to achieve a sealing effect and protect the cable connection.

[0027] The protective box 1 is equipped with a limiting component that can limit the cable; the limiting component includes: limiting groove A7, fastener 701, connecting ear 702, limiting groove B8, locking tooth 801, and connecting post 802;

[0028] The bottom of the protective box 1 is equipped with a limiting groove A7, and the limiting groove B8 is movably installed above the limiting groove A7. A fastener 701 is provided on one upper edge of both limiting groove A7 and limiting groove B8, and a connecting ear 702 is provided on the other upper edge of both limiting groove A7 and limiting groove B8. A locking tooth 801 is provided on one bottom edge of limiting groove B8 corresponding to the fastener 701, and a connecting post 802 is provided on the other side of limiting groove B8 corresponding to the connecting ear 702.

[0029] Furthermore, the limiting grooves A7 and B8 are made of TPU. TPU has good flexibility and stable chemical and physical properties, making it easy to process industrially. Threaded lugs are provided on both sides of the limiting groove A7. This is achieved by using the threaded lugs in conjunction with self-tapping screws to install the limiting groove A7 inside the protective box 1.

[0030] Furthermore, the fastener 701 and the locking tooth 801 are connected in a one-way manner. By rotating the limiting groove A7 downward, the fastener 701 and the locking tooth 801 can be connected using the one-way connection. When it is necessary to open the limiting groove B8, the fastener 701 can be flipped outward to release the restriction.

[0031] Furthermore, the connecting ear 702 and the connecting post 802 are connected in a fitting manner. The upper and lower corresponding positions of the limiting groove A7 and the limiting groove B8 are provided with semi-circular slots, which can form a ring. The number of limiting grooves B8 can be increased according to needs, thereby bundling the cables and improving practicality.

[0032] Working principle: First, place the protective box 1 into the low-voltage manhole. Then, apply lubricating oil inside the sealing ring 6 to enhance lubrication. Next, thread the cable inside the conduit into the sleeve 4, making the sleeve 4 fit snugly against the conduit. Stretch the sleeve 4 so that its end is pressed tightly against the protective box 1. Simultaneously, rotate the screw 2 to lower the support foot 201, making it contact the bottom of the protective box 1. After the protective box 1 is stable and secure, fix the sleeve 4 by passing a self-tapping screw through the fixing ear 301. The sealing ring 6 ensures the seal at the connection. Next, connect the cable. After connection, increase the number of limiting grooves B8 as needed to connect the cable. The lug 702 and the connecting post 802 are fitted together. The upper and lower corresponding positions of the limiting groove A7 and the limiting groove B8 are provided with semi-circular slots, which can form a ring to bundle the cable and improve its practicality. By rotating the limiting groove A7 downward, the fastener 701 and the locking tooth 801 can be connected by a one-way snap-fit ​​relationship. When the limiting groove B8 needs to be opened, the fastener 701 can be flipped outward to release the restriction. Finally, the protective box 1 and the cover plate 5 are installed. At the same time, the sealing strip 501 achieves a sealing effect to protect the cable joint and improve safety. The large space inside the protective box 1 can accommodate the winding of the cable.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A joint protection device, comprising a protective box (1), characterized in that: The protective box (1) has an extension ear (101) integrated at the four corners of its outer wall. The extension ear (101) is rotatably connected to a lead screw (2). The bottom of the lead screw (2) is connected to a support foot (201) through a ball joint. The protective box (1) has symmetrically arranged connecting holes (3) on both sides. The protective box (1) has fixed ears (301) on both sides above the connecting holes (3). The connecting hole (3) is movably connected to the sleeve (4). The inner ring of the connecting hole (3) and the inner ring of the sleeve (4) are both embedded with sealing rings (6). The protective box (1) is movably connected to a cover plate (5) by bolts, and a sealing strip (501) is provided at the bottom of the cover plate (5); The protective box (1) is equipped with a limiting component that can limit the cable; the limiting component includes: limiting groove A (7), fastener (701), connecting ear (702), limiting groove B (8), locking tooth (801), and connecting post (802); The bottom of the protective box (1) is equipped with a limiting groove A (7), and a limiting groove B (8) is movably installed above the limiting groove A (7). A fastener (701) is provided on one side of the upper edge of the limiting groove A (7) and the limiting groove B (8). A connecting ear (702) is provided on the other side of the limiting groove A (7) and the limiting groove B (8). A locking tooth (801) is provided at the bottom of one side of the limiting groove B (8) corresponding to the fastener (701). A connecting post (802) is provided at the other side of the limiting groove B (8) corresponding to the connecting ear (702).

2. The joint protection device as described in claim 1, characterized in that: The limiting grooves A (7) and B (8) are made of TPU, and threaded ears are provided on both sides of the limiting groove A (7).

3. A joint protection device as described in claim 1, characterized in that: The fastener (701) and the locking tooth (801) are connected in a one-way direction.

4. A joint protection device as described in claim 1, characterized in that: The connecting ear (702) and the connecting post (802) are connected in a fitting manner.

5. A joint protection device as described in claim 1, characterized in that: The limiting groove A (7) and limiting groove B (8) are each provided with a semi-circular slot at their corresponding positions on the top and bottom, which can form a ring.

6. A joint protection device as described in claim 1, characterized in that: The protective box (1) and the cover plate (5) are connected by threads at the four corners.

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