A cable head mounting structure

Abstract

The utility model relates to cable connection technical field provides a kind of cable head mounting structure, including C type sleeve, front plug connector, rear plug-in lightning arrester and rear plug, the left mounting hole for C type sleeve end insertion is equipped in the side of front plug connector, the right mounting hole for rear plug-in lightning arrester insertion is equipped in the other side, the right insertion hole for rear plug insertion is equipped in the side of rear plug-in lightning arrester.The utility model overcomes the deficiency of prior art, and design is reasonable, compact structure, threaded hole of double-end bolt and type sleeve and the hollow conduit threaded connection of connecting guide rod, realize the dual function of electrical conduction and mechanical fixation, rear plug-in lightning arrester cooperates double-end bolt and passes through and the axial locking of spring washer and nut, double-end bolt is arranged in the interior of device, and rust will not be affected by water vapor, ensure that cable long-term stable movement.

Description

Technical Field

[0001] This utility model relates to the field of cable connection technology, and specifically to a cable head installation structure. Background Technology

[0002] In power systems, cable heads are key connecting components of cable lines. The sealing performance and connection reliability of their installation structure directly affect the safe operation of equipment. Traditional cable head connection components are mostly fastened directly with external bolts. External bolts are prone to moisture and rust, resulting in poor sealing performance. They are also susceptible to intrusion from environmental factors (such as dust and moisture), leading to a decline in electrical performance and making it difficult to ensure the long-term stable operation of the cable. Therefore, we propose a cable head installation structure. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, this utility model provides a cable head installation structure to solve the above-mentioned problems existing in the prior art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cable head installation structure, including a C-type sleeve, a front connector, a rear surge arrester, and a rear plug. The front connector has a left mounting hole on one side for inserting the end of the C-type sleeve, and a right mounting hole on the other side for inserting the rear surge arrester. The rear surge arrester has a right insertion hole on one side for inserting the rear plug.

[0007] Furthermore, it also includes a pair of double-ended bolts, a connecting guide rod, a spring washer, and a nut. The C-shaped sleeve has a threaded hole for the double-ended bolt inside the left mounting hole. The connecting guide rod is a hollow guide tube with threaded structures for the double-ended bolt at both ends. The left and right mounting holes are connected, and the diameter at the connection point matches the diameter of the outer wall of the connecting guide rod for insertion. The rear-inserted surge arrester has a side for the connecting guide rod to be inserted into the left insertion hole. The left and right insertion holes are connected by a connecting hole, and the axes of the three are on the same horizontal line. The diameter inside the connecting hole matches the diameter of the outer wall of the double-ended bolt for another double-ended bolt connected to the connecting guide rod to pass through. The outer wall of the double-ended bolt inserted into the right insertion hole is fitted with a spring washer, and a nut is threadedly connected to the outer wall of the double-ended bolt on one side of the spring washer.

[0008] Furthermore, it also includes a rear protective cap, the inner cavity of one side of which is adapted to the outer contour of the rear plug on the side away from the rear-inserted surge arrester.

[0009] Furthermore, it also includes an exhaust line, which has a hollow structure and is detachably installed in the right socket.

[0010] Furthermore, a deformation groove is provided inside the rear plug, and the deformation groove extends along the axial direction of the rear plug to allow it to deform inward.

[0011] (III) Beneficial Effects

[0012] This utility model embodiment provides a cable head mounting structure. It has the following beneficial effects:

[0013] 1. The C-type bushing is interference-fitted with the front connector to form the first seal. The rear surge arrester is interference-fitted with the other side of the front connector to form the second protective barrier. The rear plug is interference-fitted with the right insertion hole to achieve the third seal, ensuring the long-term stable operation of the equipment. The rear protective cap is adapted to the tail of the rear plug to form secondary dust protection.

[0014] 2. The double-ended bolts are threaded to the threaded holes of the bushing and the hollow conduit of the connecting rod, achieving the dual functions of electrical conduction and mechanical fixation. The rear-inserted surge arrester is used in conjunction with the double-ended bolts and the axial locking of the spring washer and nut. The double-ended bolts are located inside the device and will not be affected by moisture and rust, ensuring the long-term stable operation of the cable.

[0015] 3. The hollow structure of the exhaust line can expel residual air in the installation cavity, preventing abnormal air pressure caused by temperature changes. The deformation groove of the rear plug allows for axial deformation, avoiding blockage of the exhaust line during installation. Attached Figure Description

[0016] Figure 1 This is an exploded view of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0018] In the diagram: 1. C-type sleeve; 11. Threaded hole; 2. Double-ended bolt; 3. Front connector; 31. Left mounting hole; 32. Right mounting hole; 4. Connecting guide rod; 5. Rear surge arrester; 51. Left insertion hole; 52. Right insertion hole; 53. Connecting hole; 6. Spring washer; 7. Nut; 8. Rear plug; 81. Deformation groove; 9. Rear cap; 10. Exhaust line. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] See attached document Figure 1-2 A cable head installation structure includes a C-type sleeve 1, a front connector 3, a rear surge arrester 5, and a rear plug 8. One side of the C-type sleeve 1 has a European-style C-type interface. One side of the front connector 3 has a left mounting hole 31 for inserting the end of the C-type sleeve 1. The C-type sleeve 1 and the left mounting hole 31 are press-fitted to form a seal. A threaded hole 11 is opened inside the sleeve for connecting to the threaded end of a double-ended bolt 2. The other side of the front connector 3 has a right mounting hole 32 for inserting the rear surge arrester 5. The right mounting hole 32 and the rear surge arrester 5 are press-fitted to form a seal. One side of the rear surge arrester 5 has a right insertion hole 52 for inserting the rear plug 8 to prevent dust from entering the rear surge arrester 5.

[0021] In this embodiment, it also includes a pair of double-ended bolts 2, a connecting guide rod 4, a spring washer 6, and a nut 7. A C-shaped sleeve 1 is inserted into the left mounting hole 31, and a threaded hole 11 is provided inside to mate with the double-ended bolts 2. The threaded hole 11 of the C-shaped sleeve 1 is tightened by the double-ended bolts 2. The other end of the double-ended bolts 2 is screwed into the hollow guide tube of the connecting guide rod 4. The hollow guide tube has threaded structures at both ends to mate with the double-ended bolts 2, forming a threaded fixation. The connecting guide rod 4 passes through the left mounting hole 31 and the right mounting hole 32 in sequence, and the diameter at the connection point matches the diameter of the outer wall of the connecting guide rod 4. Inside the other end of the connecting guide rod 4... Screw in another double-ended bolt 2, and insert the rear-mounted surge arrester 5 into the right mounting hole 32. At this time, the connecting guide rod 4 is inserted into the left insertion hole 51. The left insertion hole 51 and the right insertion hole 52 are connected by a connecting hole 53. The axes of the three are on the same horizontal line. The double-ended bolt 2 connected to the connecting guide rod 4 is inserted into the right insertion hole 52 through the connecting hole 53. The diameter inside the connecting hole 53 is adapted to the diameter of the outer wall of the double-ended bolt 2. A spring washer 6 is first fitted on the outer wall of the double-ended bolt 2. On the other side of the spring washer 6, a nut 7 is threadedly connected to the outer wall of the double-ended bolt 2 to form an axis lock and ensure the structural connection is stable.

[0022] In this embodiment, a rear protective cap 9 is also included. The inner cavity on one side of the rear protective cap 9 is adapted to the outer contour of the side of the rear plug 8 away from the rear-inserted surge arrester 5. The rear protective cap 9 is fitted onto the tail of the rear plug 8 to form a seal and prevent dust from entering.

[0023] In this embodiment, an exhaust line 10 made of flexible silicone tubing is also included. The exhaust line 10 has a hollow structure, with one end installed in the right insertion hole 52 and the other end extending to the outside. When in use, the air remaining in the installation cavity can be discharged through the exhaust line 10 to avoid excessive internal air pressure due to temperature changes.

[0024] In this embodiment, a deformation groove 81 is provided inside the rear plug 8. The deformation groove 81 extends axially along the rear plug 8 to allow it to deform inward. The rear plug 8 and the deformation groove 81 form an interference fit to ensure the sealing of the connection. The rear plug 8 can deform inward to avoid excessive pressure on the exhaust line 10 when the rear plug 8 is installed inside the deformation groove 81, which would cause the internal channel to be compressed and blocked, preventing exhaust.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such 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 this utility model.

Claims

1. A cable head mounting structure, characterized in that: It includes a C-type bushing (1), a front connector (3), a rear surge arrester (5), and a rear plug (8). The front connector (3) has a left mounting hole (31) on one side for inserting the end of the C-type bushing (1) and a right mounting hole (32) on the other side for inserting the rear surge arrester (5). The rear surge arrester (5) has a right insertion hole (52) on one side for inserting the rear plug (8).

2. The cable head mounting structure as described in claim 1, characterized in that: It also includes a pair of double-ended bolts (2), a connecting guide rod (4), a spring washer (6), and a nut (7). The C-shaped sleeve (1) has a threaded hole (11) for the double-ended bolts (2) inside the side of the left mounting hole (31). The connecting guide rod (4) is a hollow guide tube with threaded structures for the double-ended bolts (2) at both ends inside. The left mounting hole (31) and the right mounting hole (32) are connected, and the diameter at the connection point is adapted to the diameter of the outer wall of the connecting guide rod (4) for insertion. The rear-inserted surge arrester (5) has a... A connecting guide rod (4) is inserted into the left insertion hole (51). The left insertion hole (51) and the right insertion hole (52) are connected by a connecting hole (53). The axes of the three are on the same horizontal line. The diameter inside the connecting hole (53) is adapted to the diameter of the outer wall of the double-ended bolt (2) so that another double-ended bolt (2) connected to the connecting guide rod (4) can pass through. The outer wall of the double-ended bolt (2) inserted into the right insertion hole (52) is fitted with a spring washer (6). A nut (7) is provided on one side of the spring washer (6) and threadedly connected to the outer wall of the double-ended bolt (2).

3. The cable head mounting structure as described in claim 1, characterized in that: It also includes a rear protective cap (9), the inner cavity of one side of the rear protective cap (9) being adapted to the outer contour of the side of the rear plug (8) away from the rear-inserted surge arrester (5).

4. The cable head installation structure as described in claim 1, characterized in that: It also includes an exhaust line (10), which is a hollow structure and is detachably installed in the right insertion hole (52).

5. The cable head mounting structure as described in claim 4, characterized in that: The rear plug (8) has a deformation groove (81) inside, which extends axially along the rear plug (8) to allow it to deform inward.

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