Electrical engineering cable protection device

By designing a combined structure of "几"-shaped cable support components and encapsulation components, the problems of waterproofing and pull-out resistance at the cable joints are solved, ensuring the stability and safety of the cable connection.

CN223771728UActive Publication Date: 2026-01-06HEBEI JUNCHEN CONSTRUCTION ENGINEERING CO LTD +2
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Patent Information

Application Number
CN202520392937.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-06
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The existing waterproof and pull-out protection devices at cable joints are prone to causing the joint to break when the clamping part loosens, posing a safety hazard.

Method used

The structure includes symmetrically arranged cable support components and cable encapsulation components. The support components consist of horizontal sections, inclined sections, and connecting sections, forming a "几" shape. The cable is fixed by connecting strips and clamps to ensure stable tensile force transmission. The cable encapsulation components, such as protective sleeves or encapsulation boxes, achieve sealing.

Benefits of technology

It achieves sealing, waterproofing, and pull-out resistance for cable connectors, preventing loosening and breakage during pulling, thus improving the stability and safety of cable connections.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223771728U_ABST
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Abstract

The utility model relates to a cable protection device for electrical engineering. The cable protection device comprises two cable supporting parts which are symmetrically arranged and a cable packaging part which is arranged between the two cable supporting parts and is used for packaging a cable butt joint section, each cable supporting part comprises a supporting rod, each supporting rod comprises a horizontal section, an inclined section and a connecting section which are connected in sequence, a hoop used for fixing a cable is fixedly arranged on each horizontal section, the cable packaging parts are fixedly connected with the connecting sections on the two sides respectively, and the horizontal sections of the two cable supporting parts are fixedly connected through the connecting parts. By using the device, when the cable is pulled, the pulling force is linearly transmitted to the rear cable through the two cable supporting parts and the middle connecting part, so that the cable butt joint part in the cable packaging part is prevented from being stressed, and not only can the sealing and waterproof effects be realized, but also the drawing resistance can be realized.
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Description

Technical Field

[0001] This utility model relates to a protective device for cables, and more particularly to a protective device applied at cable joints. Background Technology

[0002] Electrical equipment uses cables, and sometimes, when cables are too short or damaged, two sections need to be joined. To increase cable stability and prevent accidents, cable joints require waterproofing and tensile strength treatment. Existing cable pull-out protection devices are generally linear in design, fixing the cable joint within a housing. The two ends of the joint are pressed and secured by the housing to achieve sealing and pull-out protection, as illustrated in patent CN119009867B, which discloses a cable joint protection structure for power engineering. However, during use, the clamping parts inevitably loosen. When these parts loosen and pull on the cable, the joint is directly stressed, easily leading to the risk of it breaking. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a waterproof and tensile-resistant cable protection device for use at cable joints.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] An electrical engineering cable protection device, the key technology of which is: it includes two symmetrically arranged cable support components and a cable encapsulation component disposed between the two cable support components for encapsulating the cable splice section; the cable support component includes a support rod, the support rod includes a horizontal section, an inclined section and a connecting section connected in sequence, the horizontal section is fixedly provided with a clamp for fixing the cable, the cable encapsulation component is fixedly connected to the connecting sections on both sides respectively, and the horizontal sections of the two cable support components are fixedly connected by the connecting component.

[0006] In one embodiment of this utility model, the cable encapsulation component is a protective sleeve. The protective sleeve includes a cylindrical sleeve body and caps disposed at both ends of the sleeve body. A through hole is provided in the center of the cap. The cap is connected to the sleeve body by a thread. A sealing ring is provided between the cap and the sleeve body.

[0007] In one embodiment of this utility model, a clamp for connecting the sleeve body is fixedly provided on the connecting section.

[0008] In one embodiment of this utility model, the cable encapsulation component is an encapsulation box, which includes an upper box body and a lower box body, and a through hole is provided between the upper box body and the lower box body for the cable to pass through.

[0009] In one embodiment of this utility model, the connecting section is a flat structure with an elongated hole, which is fixedly connected to the bottom of the lower box body by bolts.

[0010] In one embodiment of this utility model, the connecting component includes two connecting strips. A second ear plate is fixedly provided at the connection between the horizontal section and the inclined section. The two connecting strips are respectively hinged to the second ear plate on the corresponding side. Multiple connecting holes are provided on the connecting strips. The two connecting strips are fixedly connected through the connecting holes and bolts.

[0011] As one embodiment of this utility model, the clamp includes a semi-circular upper clamp and a semi-circular lower clamp. The bottom of the lower clamp is fixedly connected to the horizontal section. Both ends of the upper clamp and the lower clamp are fixedly provided with ear plates. The upper clamp and the lower clamp are fixedly connected by connecting ear plates and bolts. Anti-slip pads are provided between the upper clamp and the lower clamp and the cable.

[0012] In one embodiment of this utility model, two clamps are provided on the horizontal section, one of which is close to the inclined section.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] The electrical engineering cable protection device provided by this utility model includes a cable encapsulation component for encapsulating the joint of the cable connection section to make it sealed and waterproof; a cable support component for fixing the cables on both sides of the cable connection joint, and a section of the cable fixed on the device forms a "U" shape. The horizontal sections of the two cable support components are fixedly connected by connecting strips. When the cable is pulled, the pulling force of the cable is transmitted linearly to the subsequent cable through the two cable support components and the connecting component in the middle, avoiding the cable connection part located in the cable encapsulation component from being stressed. Therefore, it can achieve both sealing and waterproofing and pull resistance.

[0015] Because the cable forms a bend between the horizontal and inclined sections of the cable support component, when the cable is pulled, not only does the clamp fix the cable, but there is also a large friction and resistance between the cable and the clamp at the bend. Therefore, the tension of the cable in the horizontal section will be transferred to the cable support component on the other side through the connecting strip. In this way, even if the clamp loosens, the device can still play a role in resisting pull when the cable is pulled. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0017] Figure 2 This is a cross-sectional view of the sleeve in Embodiment 1 of this utility model.

[0018] Figure 3 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0019] In the diagram: 1. Clamp, 1-1. Upper Clamp, 1-2. Lower Clamp, 1-3. Ear Plate 1, 2. Support Rod, 2-1. Horizontal Section, 2-2. Inclined Section, 2-3. Connecting Section, 2-4. Ear Plate 2, 2-5. Long Hole, 3. Connecting Strip, 3-1. Connecting Hole, 4. Protective Sleeve, 4-1. Sleeve Cap, 4-2. Sleeve Body, 4-3. Through Hole, 4-4. Sealing Ring, 5. Anti-slip Pad, 6. Encapsulation Box, 6-1. Upper Box Body, 6-2. Lower Box Body, 6-3. Through Hole, 100. Cable, 101. Connecting Part. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0021] Example 1

[0022] like Figure 1 and Figure 2 The present invention relates to an electrical engineering cable protection device, which includes two symmetrically arranged cable support components and a cable encapsulation component disposed between the two cable support components for encapsulating the cable splice section.

[0023] The cable support component includes a support rod 2, which comprises a horizontal section 2-1, an inclined section 2-2, and a connecting section 2-3 connected in sequence. Two clamps 1 for securing the cable are fixedly installed on the horizontal section 2-1, with one clamp 1 positioned close to the inclined section 2-2, creating a distinct bend in the cable 100 at the junction of the horizontal and inclined sections 2-1. The cable encapsulation component is fixedly connected to the connecting sections 2-3 on both sides, and the horizontal sections 2-1 of the two cable support components are fixedly connected by the connecting component.

[0024] The connecting component includes two connecting strips 3. A second ear plate 2-4 is fixedly provided at the connection between the horizontal section 2-1 and the inclined section 2-2. The two connecting strips 3 are respectively hinged to the second ear plate 2-4 on the corresponding side. Multiple connecting holes 3-1 are provided on the connecting strips 3. The two connecting strips 3 are fixedly connected through the connecting holes and bolts.

[0025] The clamp 1 includes a semi-circular upper clamp 1-1 and a semi-circular lower clamp 1-2. The bottom of the lower clamp 1-2 is fixedly connected to the horizontal section 2-1. Both ends of the upper clamp 1-1 and the lower clamp 1-2 are fixedly provided with ear plates 1-3. The upper clamp 1-1 and the lower clamp 1-2 are fixedly connected by connecting ear plates and bolts. Anti-slip pads 5 are provided between the upper clamp 1-1 and the lower clamp 1-2 and the cable 100. By selecting anti-slip pads 5 of different thicknesses, the clamp 1 can be adapted to cables of different diameters.

[0026] In this embodiment, the cable encapsulation component is a protective sleeve 4. The protective sleeve 4 includes a cylindrical sleeve body 4-2 and caps 4-1 disposed at both ends of the sleeve body 4-2. A through hole 4-3 is provided in the center of each cap 4-1. The caps 4-1 are threadedly connected to the sleeve body 4-2, and a sealing ring 4-4 ​​is provided between the caps 4-1 and the sleeve body 4-2. A clamp 1 for connecting the sleeve body 4-2 is fixedly disposed on the connecting section 2-3.

[0027] When using, a suitable protective sleeve 4 can be selected according to the diameter of the cable 100, or different models of sealing rings 4-4 can be selected within a certain range. Before connecting the cables, first place a cap 4-1, sealing ring 4-4, and sleeve body 4-2 on one section of the cable, connecting the cap 4-1 and sleeve body 4-2. Then, place another cap 4-1 and sealing ring 4-4 ​​on the other section of the cable, and then connect and fix the cables. After connecting, adjust the position of the cap 4-1 and sleeve body 4-2 so that the connecting part 101 is inside the sleeve body 4-2. Then, tighten the caps 4-1 at both ends of the sleeve body 4-2. The sealing ring 4-4, under the pressure of the cap 4-1 and sleeve body 4-2, deforms inward and forms a tight contact with the cable 100, and also forms a tight contact with the cap 4-1 and sleeve body 4-2, achieving a sealing effect.

[0028] After securing the protective sleeve 4, install the cable support components on both sides. Based on the relative position of the clamp 1 on the connecting section 2-3 and the sleeve body 4-2, adjust the connecting holes 3-1 on the two connecting strips 3 to align them. Finally, secure the two connecting strips 3 with bolts and tighten all the clamps 1 to complete the installation and fixation of the device.

[0029] In this embodiment, the lower clamp 1-2 of each clamp 1 can be welded and fixed to the support rod 2, or fixed by bolts. The support rod 2 adopts an integral structure of round steel or threaded steel, which has good strength and stability.

[0030] Example 2

[0031] like Figure 3As shown, the cable encapsulation component structure in this embodiment differs from that in Embodiment 1. In this embodiment, the cable encapsulation component is an encapsulation box 6, which includes an upper box body 6-1 and a lower box body 6-2. A through hole 6-3 for the cable 100 to pass through is provided between the upper box body 6-1 and the lower box body 6-2. The upper box body 6-1 and the lower box body 6-2 are fixedly connected by bolts, forming a cavity between them to accommodate the cable mating part 101. A sealing ring is provided between the upper box body 6-1 and the lower box body 6-2.

[0032] A semi-circular groove is provided on the side wall of the upper box body 6-1, and a semi-circular groove is also provided on the side wall of the lower box body 6-2. The two semi-circular grooves are joined together to form the through hole 6-3, and a sealing ring or sealing gasket is provided at the through hole 6-3.

[0033] In this embodiment, the structure of the cable support component is basically the same as that in Embodiment 1, except that the connecting section 2-3 of the support rod 2 is a flat structure with an elongated hole 2-5. The elongated hole 2-5 is fixedly connected to the bottom of the lower box 6-2 by bolts. During use, the position of the lower box 6-2 can be adjusted within the elongated hole 2-5, and the connecting holes 3-1 on the two connecting strips 3 can be adjusted simultaneously for alignment.

[0034] In Embodiments 1 and 2 of this utility model, the cable encapsulation component is used to seal the cable mating part 101 to prevent it from being exposed, thus providing protection and waterproofing. Since the cable 100 forms a corner between the horizontal section 2-1 and the inclined section 2-2 of the cable support component, when the cable is pulled, not only does the clamp 1 fix the cable 100, but there is also a large friction and resistance between the cable 100 and the clamp 1 at the corner. Therefore, the tension of the cable in the horizontal section 2-1 will be transmitted more to the cable support component on the other side through the connecting strip 3. In this way, even if the clamp 1 loosens, the device can still play an anti-pull-out role when the cable is pulled.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical engineering cable protection device, characterized by: It includes two symmetrically arranged cable support components and a cable packaging component arranged between the two cable support components for packaging cable docking segments; the cable support component includes a support rod (2), which includes a horizontal segment (2-1), an inclined segment (2-2) and a connecting segment (2-3) connected in sequence, a hoop (1) for fixing the cable is fixedly arranged on the horizontal segment (2-1), and the cable packaging component is fixedly connected with the connecting segments (2-3) on both sides, and the horizontal segments (2-1) of the two cable support components are fixedly connected through a connecting component.

2. An electrical engineering cable protection device according to claim 1, characterized in that: The cable packaging component is a protective sleeve (4), the protective sleeve (4) includes a cylindrical sleeve body (4-2) and sleeve caps (4-1) arranged at both ends of the sleeve body (4-2), a through hole (4-3) is formed in the center of the sleeve cap (4-1), the sleeve cap (4-1) is connected with the sleeve body (4-2) through threads, and a sealing ring (4-4) is arranged between the sleeve cap (4-1) and the sleeve body (4-2).

3. An electrical engineering cable protection device according to claim 2, characterised in that: The connecting segment (2-3) is fixedly provided with a hoop (1) for connecting the sleeve body (4-2).

4. An electrical engineering cable protection device according to claim 1, characterized in that: The cable packaging component is a packaging box (6), the packaging box (6) includes an upper box body (6-1) and a lower box body (6-2), and a via hole (6-3) for allowing the cable (100) to pass through is formed between the upper box body (6-1) and the lower box body (6-2).

5. An electrical engineering cable protection device according to claim 4, characterised in that: The connecting segment (2-3) is in a flat structure, and a long hole (2-5) is arranged on the connecting segment (2-3), and the long hole (2-5) is fixedly connected with the bottom of the lower box body (6-2) through bolts.

6. An electrical engineering cable protection device according to any one of claims 1 to 5, characterised in that: The connecting component includes two connecting plate strips (3), the connecting part between the horizontal segment (2-1) and the inclined segment (2-2) is fixedly provided with an ear plate two (2-4), the two connecting plate strips (3) are respectively hingedly connected with the ear plate two (2-4) on the corresponding side, a plurality of connecting holes (3-1) are formed in the connecting plate strip (3), and the two connecting plate strips (3) are fixedly connected through the connecting holes and bolts.

7. An electrical engineering cable protection device according to any one of claims 1 to 5, characterised in that: The hoop (1) includes a semicircular upper hoop (1-1) and a semicircular lower hoop (1-2), the bottom of the lower hoop (1-2) is fixedly connected with the horizontal segment (2-1), ear plates one (1-3) are fixedly arranged at both ends of the upper hoop (1-1) and the lower hoop (1-2), the upper hoop (1-1) and the lower hoop (1-2) are fixedly connected through connecting ear plates and bolts, and anti-skid pads (5) are arranged between the upper hoop (1-1) and the lower hoop (1-2) and the cable (100).

8. An electrical engineering cable protection device according to any one of claims 1 to 5, characterised in that: Two hoops (1) are arranged on the horizontal segment (2-1), and one of the hoops (1) is close to the inclined segment (2-2).

Citation Information

Patent Citations

  • A cable joint protection structure for electric power engineering

    CN119009867B