A sealing device based on an insulating span equipment clamp

Abstract

This application discloses a sealing device based on an insulated span equipment clamp, belonging to the technical field of power equipment accessories. The equipment clamp is connected to the support rod of a cable or transformer. The sealing device includes a sealing housing, within which a cable receiving cavity and a support rod receiving cavity are provided, and the cable receiving cavity and the support rod receiving cavity are connected. The sealing device also includes a sealing cover, which is detachably connected to one end of the sealing housing. Cables and temperature measuring wires enter the cable receiving cavity through a variable diameter connector provided on the sealing cover. This application utilizes a variable diameter connector that can be cut into sections on the sealing cover, and increases the contact area between the connector and the side of the cable through a tubular protrusion, thereby enabling the sealing housing to seal with cables and clamps of different diameters. Furthermore, a plug on the surface of the sealing housing can seal and cover the sealing holes on the surface of the sealing housing used for adjusting the clamp, achieving an overall seal.

Description

Technical Field

[0001] This utility model belongs to the technical field of power equipment accessories, specifically relating to a sealing device based on an insulated span equipment clamp. Background Technology

[0002] For 30° angled clamps, after the clamp is connected to the cable or transformer support, the connection is usually only covered by a sheath, resulting in poor sealing performance. This fails to prevent moisture from contacting the clamp, and the surface of the clamp is prone to oxidation after prolonged use. Furthermore, electrochemical corrosion can easily occur when connecting different conductor materials, leading to a shorter lifespan for the clamp.

[0003] A type of insulated span equipment clamp and its sealing assembly are currently disclosed. The sealing assembly includes a sealing housing and multiple sealing covers connected to and separate from the sealing housing. The sealing housing has a receiving cavity for accommodating the clamp. One end of the sealing housing has a cable inlet and a temperature measuring wire inlet for connecting cables and temperature measuring wires, while the other end has a sealing sleeve receiving hole for connecting a transformer mast. The sealing housing also has a first sealing hole for tightening the shear bolt on the clamp, a second sealing hole for mounting the clamp sleeve, and a third sealing hole for adjusting the clamp fasteners. These three sealing holes can be sealed by multiple sealing covers connected as a single unit. Although this sealing assembly can seal cables, transformer masts, and clamps of specific angles and diameters, the separation of the sealing covers from the sealing housing makes it prone to loss, leading to sealing failure of the sealing housing. Furthermore, the separate sealing covers are inconvenient for carrying during construction. Secondly, the cable inlet and temperature measuring wire inlet at the front end of the sealing housing are fixed-diameter inlets, making them unsuitable for cables of different diameters, resulting in low tolerance for construction errors. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sealing device based on an insulated span equipment clamp.

[0005] The present invention adopts the following technical solution.

[0006] This utility model discloses a sealing device based on an insulated span equipment clamp. The equipment clamp is connected to the support rod of a cable or transformer. The sealing device includes: the equipment clamp is connected to the support rod of the cable or transformer; the sealing device includes: a sealing housing; the sealing housing has a cable receiving cavity and a support rod receiving cavity, which are connected; the sealing device also includes a sealing cover, which is detachably connected to one end of the sealing housing; the cable and temperature measuring wire enter the cable receiving cavity through a variable diameter connector provided on the sealing cover.

[0007] Preferably, the sealing device further includes a cover plate, which is detachably connected to the sealing housing and seals the cable receiving cavity and the pole receiving cavity.

[0008] Preferably, the sealing cap is provided with a through hole, and the variable diameter connector is made of elastic material and can be detachably installed in the through hole.

[0009] Preferably, the variable diameter connector includes a sealing plate, which has multiple cutting grooves arranged concentrically in a radially diffused manner.

[0010] Preferably, each cutting slot corresponds to a cable of a certain diameter.

[0011] Preferably, a protrusion is provided on the inner side of the sealing plate and outside the ring of each cutting groove. The protrusion is a tubular structure, and the diameter of each cutting groove corresponds to that of each tubular structure.

[0012] Preferably, the cover plate is detachably connected to the sealing housing, and the cover plate is provided with a first sealing hole for tightening the shear bolt on the wire clamp, a second sealing hole for setting the clamp sleeve on the wire clamp, and a third sealing hole for adjusting the wire clamp fastener.

[0013] Preferably, a fixing member is provided on one side of the first sealing hole, the second sealing hole and the third sealing hole, and the fixing member is fixedly connected to the surface of the cover plate.

[0014] Preferably, a plug is rotatably connected to the fixing member, and the plug fits and seals with the sealing hole.

[0015] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0016] 1. A segmentable, variable-diameter connector is used to cut cable sockets that are compatible with different diameters along each cutting groove. The tubular protrusions inside the cutting grooves increase the contact area between the sockets and the sides of the cables, thereby enabling the sealing housing to seal with cables and clamps of different diameters.

[0017] 2. The rotatable cap on the surface of the sealing housing can seal and cover each sealing hole on the surface of the sealing housing used for adjusting the wire clamp, thereby achieving an overall seal and avoiding the problems of separate sealing caps being inconvenient to carry during construction and easily lost. Attached Figure Description

[0018] Figure 1 This is a front view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is an isometric schematic diagram of this utility model;

[0021] In the diagram: 1. Sealed housing; 2. Cable receiving cavity; 3. Rod receiving cavity; 4. Cable socket; 5. Temperature measuring wire socket; 6. Sealing cover; 7. Variable diameter connector; 8. Sealing plate; 9. First-stage cutting groove; 10. Second-stage cutting groove; 11. Protrusion; 12. Cover plate; 13. First sealing hole; 14. Second sealing hole; 15. Third sealing hole; 16. Fixing component; 17. Plug. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are merely some embodiments of this utility model, and not all embodiments. Based on the spirit 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.

[0023] like Figure 1-3 As shown, Embodiment 1 of this utility model discloses a sealing device based on an insulated span equipment clamp, including a sealing housing 1, a cable receiving cavity 2 and a pole receiving cavity 3 provided inside the sealing housing 1, the cable receiving cavity 2 and the pole receiving cavity 3 being connected at a 30° angle.

[0024] The cable receiving cavity 2 is provided with a cable socket 4 and a temperature measuring wire socket 5 at one end. The inner diameter of the cable socket 4 can accommodate at least four different diameter cables of the same specification. The inner diameter of the temperature measuring wire socket 5 can accommodate at least three to four different diameter temperature measuring wires of the same specification. The sealing cover 6 is detachably connected to one end of the sealing housing 1 by a snap fastener and covers the cable socket 4 and the temperature measuring wire socket 5.

[0025] The sealing cover 6 includes a sealing cover body for covering the cable socket 4 and the temperature measuring wire socket 5, and a variable diameter connector 7 disposed on one side surface of the sealing cover body. The variable diameter connector 7 is disposed on one side surface of the sealing cover 6 and is located on the same side of the sealing housing 1 as the cable socket 4 and the temperature measuring wire socket 5. The variable diameter connector 7 is made of a flexible material with elasticity, such as silicone or rubber.

[0026] The variable diameter connector 7 includes a sealing plate 8, which has multiple levels of cutting grooves arranged radially. The i-th level cutting groove is concentric with the (i+1)-th level cutting groove. When i is 1, the cutting groove is located at the center of the sealing plate.

[0027] Specifically, the variable diameter connector 7 is provided with a circular sealing plate 8. The surface of the sealing plate 8 is provided with several cutting grooves in a radially diffused manner. Each cutting groove corresponds to a cable of a certain diameter. The first-level cutting groove 9 is located in the center of the sealing plate 8, and the second-level cutting groove 10 is located outside the first-level cutting groove 9 and is distributed in a ring. Each second cutting groove 10 also corresponds to a cable or temperature measuring wire of a certain diameter.

[0028] To ensure a sealed connection between the cable and temperature measuring wire and the hole cut along the groove, a protrusion 11 is provided on the inner side of the sealing plate 8, outside the ring of each groove. Each protrusion 11 has a tubular structure, with each groove corresponding to a tube diameter. The inner diameter of the tube is the same as the diameter of the cable to be inserted, and the diameter of the groove is almost the same as, or slightly smaller than, the inner diameter of the corresponding tube. This groove-cutting creates a hole in the sealing plate 8 for inserting the cable. The portion protruding from the sealing plate 8 increases the contact area between the sealing plate 8 and the sides of each cable and / or temperature measuring wire, thereby increasing the seal.

[0029] In addition, the sealing device also includes a cover plate 12 for sealing and covering the cable receiving cavity 2 and the rod receiving cavity 3. The cover plate 12 is detachably connected to the sealing housing 1 by a snap fastener. The cover plate 12 is provided with a first sealing hole 13 for tightening the shear bolt on the wire clamp, a second sealing hole 14 for setting the clamp sleeve on the wire clamp, and a third sealing hole 15 for adjusting the wire clamp fastener. A fixing member 16 is provided on the side of the cover plate 12 adjacent to the above three sealing holes. The plug 17 is rotatably connected to the fixing member 16 and fits with each sealing hole.

[0030] In use, the cable and temperature measuring wire enter the cable socket 4 and temperature measuring wire socket 5 respectively through the variable diameter connector 7 on the sealing cover 6, and then enter the cable receiving cavity 2. The different cutting grooves on the variable diameter connector 7 allow cables of different diameters to pass through, and the protrusion 11 helps to improve the sealing connection between the cable and the sealing housing 1. After the equipment clamp is connected to the cable and transformer support, the fixing part 16 and the plug 17 set on the surface of the sealing housing are rotated to seal and cover the sealing holes on the surface of the sealing housing used to adjust the clamp, thereby achieving the overall sealing of the insulation span equipment clamp.

[0031] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0032] 1. A segmentable, variable-diameter connector is used to cut cable sockets that are compatible with different diameters along each cutting groove. The tubular protrusions located inside the cutting grooves increase the contact area between the sockets and the sides of the cables, thereby enabling the sealing housing to seal with cables and clamps of different diameters.

[0033] 2. The rotatable cap on the surface of the sealing housing can seal and cover each sealing hole on the surface of the sealing housing used for adjusting the wire clamp, thereby achieving an overall seal and avoiding the problems of separate sealing caps being inconvenient to carry during construction and easily lost.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A sealing device based on an insulated span equipment clamp, the equipment clamp being connected to a cable, a transformer's boom, the sealing device comprising: The equipment clamp is connected to the cable and the transformer's support rod. The sealing device includes: a sealing housing (1), in which a cable receiving cavity (2) and a support rod receiving cavity (3) are provided, and the cable receiving cavity (2) and the support rod receiving cavity (3) are connected. The device is characterized in that: It also includes a sealing cover (6), which is detachably connected to one end of the sealing housing (1). The cable and the temperature measuring wire enter the cable receiving cavity (2) through the variable diameter plug (7) provided on the sealing cover (6).

2. A sealing device based on an insulated span equipment clamp according to claim 1, characterized in that: The sealing device also includes a cover plate (12), which is detachably connected to the sealing housing (1) and seals the cable receiving cavity (2) and the pole receiving cavity (3).

3. A sealing device based on an insulated span equipment clamp according to claim 1, characterized in that: The sealing cap (6) is provided with a through hole, and the variable diameter connector (7) is made of elastic material and can be detachably installed in the through hole.

4. A sealing device based on an insulated span equipment clamp according to claim 1, characterized in that: The variable diameter connector (7) includes a sealing plate (8) which has multiple cutting grooves arranged concentrically in a radially diffuse manner.

5. A sealing device based on an insulated span equipment clamp according to claim 4, characterized in that: Each cutting slot corresponds to a cable of a certain diameter.

6. A sealing device based on an insulated span equipment clamp according to claim 4, characterized in that: A protrusion (11) is provided on the inner side of the sealing plate (8) and outside the ring of each cutting groove. The protrusion (11) is a tubular structure, and each cutting groove corresponds to the diameter of each tubular structure.

7. A sealing device based on an insulated span equipment clamp according to claim 2, characterized in that: The cover plate (12) is detachably connected to the sealing housing (1). The cover plate (12) is provided with a first sealing hole (13) for tightening the shear bolt on the wire clamp, a second sealing hole (14) for setting the clamp sleeve on the wire clamp, and a third sealing hole (15) for adjusting the wire clamp fastener.

8. A sealing device based on an insulated span equipment clamp according to claim 7, characterized in that: A fixing member (16) is provided on one side of the first sealing hole (13), the second sealing hole (14) and the third sealing hole (15), and the fixing member (16) is fixedly connected to the surface of the cover plate (12).

9. A sealing device based on an insulated span equipment clamp according to claim 8, characterized in that: A plug (17) is rotatably connected to the fixing member (16), and the plug (17) fits and seals with the sealing hole.

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