Power cable pipeline butt joint sealing device

Abstract

The utility model relates to the technical field of cable protection pipes, in particular to a power cable pipeline butt joint sealing device which comprises a base, two lower hoops symmetrically arranged on the left side and the right side of the upper end of the base, an upper hoop detachably installed at the upper ends of the two lower hoops and a sealing ring arranged between the two lower hoops and the upper hoop. The lower end of the lower clamp is symmetrically and fixedly connected with two guide blocks penetrating through the base, and guide grooves corresponding to the guide blocks are formed in the base. According to the utility model, an original butt joint sealing device is scientifically and reasonably improved, an original fixed lower clamp is improved into a movable lower clamp, and the double-thread screw, the inner screw seat and the knob are arranged between the base and the lower clamp, so that convenient butt joint sealing and pre-tightening operation after butt joint of power cable pipelines can be realized; and the workload and difficulty of butt joint sealing of the power cable pipelines are effectively reduced, so that the convenience and efficiency of butt joint sealing operation of the power cable pipelines are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection pipes, in particular to a butt joint sealing device for a power cable pipeline. Background Technique

[0002] A cable protection pipe refers to a metal protection pipe with a certain mechanical strength that is laid on the outer layer of a cable to prevent the cable from being damaged. The cable protection pipe is mainly installed in the section where the communication cable crosses the power line to prevent the power line from breaking and causing a short circuit accident.

[0003] Such as Figure 4 and Figure 5 shown, it is a butt joint sealing device used for the butt joint installation of the current power cable pipeline. Its main function is to establish the butt joint installation between the ends of two power cable pipelines and the sealing treatment after the butt joint, and facilitate the subsequent fixed-point fixing operation of the power cable pipeline. However, the above-mentioned power cable pipeline butt joint sealing device has deficiencies in the actual use process: the original lower clamp is fixed on the base, and the power cable pipeline is fixed between the lower clamp and the upper clamp. The operator needs to squeeze the sealing ring of the two power cable pipelines towards the middle to maintain the pre-tight state between the power cable pipeline and the sealing ring, and then install the upper clamp on the lower clamp to fix the power cable pipeline. The entire butt joint sealing operation requires multiple operations, which not only increases the workload and difficulty of the power cable pipeline butt joint sealing operation, but also reduces the convenience and efficiency of the power cable pipeline butt joint sealing operation.

[0004] In view of this, it is particularly important to design and manufacture a butt joint sealing device that can reduce the workload of the power cable pipeline butt joint sealing and improve the butt joint sealing effect of the power cable pipeline during the laying and use of the power cable pipeline. Content of the Utility Model

[0005] The purpose of the utility model is to provide a butt joint sealing device for a power cable pipeline in order to solve the problems that the entire butt joint sealing operation of the traditional power cable pipeline butt joint sealing device is time-consuming and laborious, with poor convenience and low efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A butt joint sealing device for a power cable pipeline includes a base, two lower clamps symmetrically arranged on the left and right sides of the upper end of the base, an upper clamp detachably installed on the upper ends of the two lower clamps, and a sealing ring arranged between the two lower clamps and the upper clamp. Two guiding blocks penetrating the base are symmetrically and fixedly connected to the lower ends of the lower clamps. Guiding grooves corresponding to the guiding blocks are formed on the base. A locking mechanism for butt joint sealing and pre-tightening operation after butt joint of two power cable pipelines is arranged between the base and the two lower clamps.

[0008] As a further description of the above technical solution:

[0009] The locking mechanism includes a double-headed screw rotatably installed in the middle of the upper end of the base and passing through two lower clamps, and internal screw seats installed on the two lower clamps and corresponding to the double-headed screw.

[0010] As a further description of the above technical solution:

[0011] The two ends of the double-headed screw are arranged with opposite thread directions, and a knob is installed on one end of the double-headed screw.

[0012] As a further description of the above technical solution:

[0013] An insertion lock part for positioning and fixing the sealing ring on the base is arranged between the sealing ring and the base.

[0014] As a further description of the above technical solution:

[0015] The insertion lock part includes two lower insertion blocks symmetrically fixed at the lower end of the sealing ring and vertically penetrating the base, a lower insertion slot opened on the base and corresponding to the two lower insertion blocks, and a limit retaining buckle integrally fixed on the two lower insertion blocks and buckling with the upper end surface of the base.

[0016] As a further description of the above technical solution:

[0017] Inner buckling strips that abut against the inner wall of the power cable duct are integrally fixed and connected to the inner sides of the left end and the right end of the sealing ring, and outer buckling strips that abut against the outer wall of the power cable duct are integrally fixed and connected to the outer sides of the left end and the right end of the sealing ring.

[0018] As a further description of the above technical solution:

[0019] Vertical distribution mounting holes are opened at the four corners of the base.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are:

[0021] 1. In the present utility model, the original docking and sealing device is scientifically and rationally improved. The original fixed lower clamp is improved into a movable type, and a double-headed screw, an internal screw seat, and a knob are arranged between the base and the lower clamp. The power cable duct can be pre-docked and fixed between the lower clamp and the upper clamp. Then, when holding and rotating the knob, under the screw drive between the double-headed screw and the internal screw seat, the two lower clamps can move synchronously towards the middle, so as to pre-tighten the end of the power cable duct and the sealing ring. This structure can realize the convenient docking and sealing of the power cable duct and the pre-tightening operation after docking, effectively reducing the workload and difficulty of the docking and sealing of the power cable duct, thereby improving the convenience and efficiency of the docking and sealing operation of the power cable duct.

[0022] 2. In the present utility model, an internal buckle strip, an external buckle strip, a lower insertion block, and a limit retaining buckle are arranged on the original sealing ring. At the same time, a lower insertion slot is arranged on the base. The original sealing ring needs to be manually adjusted by the operator to be buckled between the ends of the two power cable ducts. The sealing ring of this application can be combined and fixed between the base, the two lower clamps, and the upper clamp, without the operator manually adjusting the docking state between the power cable duct and the sealing ring. This structure can coaxially limit and fix the sealing ring on the base and between the two lower clamps and the upper clamp, facilitating the subsequent docking and sealing operation of the power cable duct, thereby further improving the convenience and efficiency of the docking and sealing operation of the power cable duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a power cable duct docking and sealing device proposed by the present utility model;

[0024] Figure 2 is a three-dimensional disassembly schematic diagram of the present utility model;

[0025] Figure 3 is a working schematic diagram of the present utility model;

[0026] Figure 4 is a structural schematic diagram of the previous generation of power cable duct docking and sealing device in the prior art;

[0027] Figure 5 is a working schematic diagram of the previous generation of power cable duct docking and sealing device in the prior art.

[0028] LEGEND DESCRIPTION:

[0029] 1. Base; 101. Mounting hole; 102. Guide groove; 103. Lower insertion slot; 2. Lower clamp; 201. Internal screw seat; 202. Guide block; 3. Upper clamp; 4. Sealing ring; 401. Internal buckle strip; 402. External buckle strip; 403. Lower insertion block; 404. Limit retaining buckle; 5. Double-headed screw; 501. Knob. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0031] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a docking and sealing device for a power cable pipeline, including a base 1, two lower clamps 2 symmetrically arranged on the left and right sides of the upper end of the base 1, an upper clamp 3 detachably installed on the upper ends of the two lower clamps 2, and a sealing ring 4 arranged between the two lower clamps 2 and the upper clamp 3. Two guiding blocks 202 penetrating the base 1 are symmetrically and fixedly connected to the lower ends of the lower clamps 2. A guiding groove 102 corresponding to the guiding blocks 202 is formed on the base 1. A locking mechanism for docking and sealing two power cable pipelines and pre-tightening operation after docking is arranged between the base 1 and the two lower clamps 2.

[0032] Specifically, as Figures 1 - 3 shown, the locking mechanism includes a double-headed screw 5 rotatably installed in the middle of the upper end of the base 1 and penetrating the two lower clamps 2, and internal screw seats 201 installed on the two lower clamps 2 and corresponding to the double-headed screw 5. Among them, the two ends of the double-headed screw 5 are arranged with opposite thread directions. When the double-headed screw 5 rotates, under the screw drive between the double-headed screw 5 and the internal screw seats 201, the two lower clamps 2 can move synchronously inwards or outwards on the base 1. A knob 501 is installed on one end of the double-headed screw 5, which is convenient for the operator to hold and rotate the double-headed screw 5 for adjustment operation.

[0033] Specifically, as Figures 1 - 3 shown, an insertion lock part for positioning and fixing the sealing ring 4 on the base 1 is arranged between the sealing ring 4 and the base 1. The insertion lock part includes two lower insertion blocks 403 symmetrically fixed to the lower end of the sealing ring 4 and vertically penetrating the base 1, a lower insertion slot 103 formed on the base 1 and corresponding to the two lower insertion blocks 403, and a limit retaining buckle 404 integrally fixed to the two lower insertion blocks 403 and buckling with the upper end surface of the base 1. The setting of the limit retaining buckle 404 can prevent the lower insertion blocks 403 from sliding excessively in the lower insertion slot 103, thereby restricting the height of the sealing ring 4 installed on the base 1 and keeping the sealing ring 4 coaxial with the lower clamps 2 and the upper clamp 3.

[0034] Meanwhile, inner retaining strips 401 that are integrally and fixedly connected to the inner sides of the left and right ends of the sealing ring 4 and are in contact with the inner wall of the power cable duct are provided, which can increase the contact area between the sealing ring 4 and the inner wall of the power cable duct and improve the sealing effect between the sealing ring 4 and the inner side of the power cable duct. Outer retaining strips 402 that are integrally and fixedly connected to the outer sides of the left and right ends of the sealing ring 4 and are in contact with the outer wall of the power cable duct are provided, which can increase the contact area between the sealing ring 4 and the outer wall of the power cable duct and improve the sealing effect between the sealing ring 4 and the outer side of the power cable duct.

[0035] Specifically, as Figures 1 - 3 shown, vertical installation holes 101 are provided at the four corners of the base 1, which facilitates the installation and fixation of the base 1 to the installation surface or the fixing surface through fasteners.

[0036] Working principle: When in use and when a docking and sealing operation of the power cable duct is required, the first step is that the operator inserts and fixes the sealing ring 4 through the lower insertion block 403 between the two lower slots 103 in the middle of the base 1. At this time, the sealing ring 4 will be coaxially distributed with the two lower clamps 2 and the upper clamp 3.

[0037] The second step is to place the power cable duct on the lower clamp 2 in advance, and then adjust the power cable duct to be in contact with the sealing ring 4. Then, the upper clamp 3 can be locked and fixed above the lower clamp 2 through fasteners. At this time, the power cable duct will be limited and locked between the lower clamp 2 and the upper clamp 3.

[0038] The third step is to hold and rotate the knob 501, which can drive the double-headed screw 5 to rotate. Under the screw drive between the double-headed screw 5 and the internal screw seat 201, the two lower clamps 2 can move synchronously inward on the base 1, so as to drive the end of the power cable duct to further press and fit onto the sealing ring 4 for pre-tightening operation after the docking of the power cable duct.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A power cable conduit butt sealing device, comprising a base (1), two lower clamps (2) symmetrically arranged on the left and right sides of the upper end of the base (1), an upper clamp (3) detachably mounted on the upper ends of the two lower clamps (2), and a sealing ring (4) arranged between the two lower clamps (2) and the upper clamp (3), characterized in that: The lower end of the lower clamp (2) is symmetrically fixedly connected to two guide blocks (202) that penetrate the base (1); the base (1) is provided with guide grooves (102) corresponding to the guide blocks (202); and a locking mechanism for butt-sealing two power cable conduits and performing pre-tightening operations after butt-jointing is provided between the base (1) and the two lower clamps (2).

2. A power cable conduit butt sealing device according to claim 1, characterized in that: The locking mechanism comprises a double-headed screw (5) rotatably mounted at the middle of the upper end of the base (1) and penetrating the two lower clamps (2), and an internal screw seat (201) mounted on the two lower clamps (2) and corresponding to the double-headed screw (5).

3. A power cable conduit butt sealing device according to claim 2, characterized in that: The two ends of the double-headed screw rod (5) are arranged in opposite directions, and a knob (501) is installed on one end of the double-headed screw rod (5).

4. The power cable conduit butt sealing device according to claim 1, characterized in that: A locking portion is provided between the sealing ring (4) and the base (1) for positioning and fixing the sealing ring (4) on the base (1).

5. A power cable conduit butt sealing device according to claim 4, characterized in that: The locking portion comprises two lower insert blocks (403) symmetrically fixed to the lower end of the sealing ring (4) and vertically penetrating the base (1), a lower slot (103) provided on the base (1) and corresponding to the two lower insert blocks (403), and a limit stop buckle (404) integrally fixed to the two lower insert blocks (403) and buckled with the upper end surface of the base (1).

6. A power cable conduit butt sealing device according to claim 5, characterized in that: The inner sides of the left and right ends of the sealing ring (4) are integrally fixedly connected with inner buckle strips (401) that abut against the inner wall of the power cable pipeline, and the outer sides of the left and right ends of the sealing ring (4) are integrally fixedly connected with outer buckle strips (402) that abut against the outer wall of the power cable pipeline.

7. The power cable conduit butt sealing device according to claim 1, characterized in that: The four corners of the base (1) are each provided with vertically distributed mounting holes (101).

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