C-shaped rail insulation support
By designing a C-rail insulating bracket with crimp connection and setting a convex ring and groove on the outer surface of the insulating main body, the problem of difficult to guarantee electrical performance when installed in a narrow space is solved, and a combination of high mechanical strength and good insulation performance is achieved.
Patent Information
- Application Number
- CN202422541134.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-10-21
AI Technical Summary
When installing C-rail insulated brackets in a narrow space, the electrical performance of conventional brackets is difficult to ensure, especially parameters such as torque value and creepage distance are difficult to meet the requirements.
A C-type rail insulating bracket including an upper metal, an insulating body and a lower metal is designed to increase mechanical strength by crimping connections, and a convex ring and groove are provided on the outer surface of the insulating body to extend the arc distance.
It realizes the installation in a narrow space while ensuring electrical performance and mechanical strength, and meets the requirements of torque and arc distance.
Smart Images
Figure CN223014403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an insulating bracket for subway tracks, in particular to a C-shaped rail insulating bracket. Background Art
[0002] A C-shaped rail insulating bracket is a device with insulating properties for supporting and fixing a C-shaped contact rail. The C-shaped rail insulating bracket generally includes an upper metal part, a support frame, and a lower metal part. The upper metal part is generally made of metal material and adopts hot-dip galvanization anti-corrosion technology to improve its anti-corrosion performance and service life; the support frame is usually made of insulating material and manufactured by a molding process to ensure its insulating performance and structural stability; the lower metal part is integrally cast to fix the C-shaped contact rail and ensure its stability and safety.
[0003] The C-shaped rail insulating bracket plays a crucial role in the subway traffic system, mainly including the following aspects: support and fixation, the C-shaped rail insulating bracket can firmly support and fix the C-shaped contact rail to ensure its stability and safety during operation; insulation isolation, due to being made of insulating material, the C-shaped rail insulating bracket can effectively insulate and isolate the C-shaped contact rail from the ground or other metal structures to prevent safety hazards such as current leakage and short circuit.
[0004] However, in some places in the existing subway traffic system, due to limitations such as geographical conditions, the space for installing the C-shaped rail insulating bracket is very narrow, and it is difficult to use a conventional C-shaped rail insulating bracket. If the conventional C-shaped rail insulating bracket is scaled down proportionally, however, it is difficult to ensure the electrical performance of the C-shaped rail insulating bracket, and parameters such as torque value and creepage distance are difficult to guarantee. Summary of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a C-shaped rail insulating bracket that can not only ensure electrical performance but also be installed in a narrow space.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A C-shaped rail insulation bracket includes an upper metal part, an insulation body, and a lower metal part connected in sequence. The upper metal part includes an upper metal part body and an upper metal part connection ring protruding from the surface of the upper metal part body on one side of the upper metal part body. The upper metal part body is sheet-shaped; the lower metal part includes a lower metal part body and a lower metal part connection ring at one end of the lower metal part body. The lower metal part body is rod-shaped; the insulation body is an epoxy resin rod, and one end of the epoxy resin rod is crimped to the upper metal part connection ring; the other end of the epoxy resin rod is crimped to the lower metal part connection ring; on the outer surface of the epoxy resin rod between the upper metal part connection ring and the lower metal part connection ring, there are several convex rings and grooves for extending the arc electrical distance; the overall length after connecting the upper metal part, the insulation body, and the lower metal part is between 180mm and 210mm.
[0008] As an improvement to the present utility model, insulation umbrella skirts are provided on the outer surfaces of the upper metal part connection ring, the insulation body, and the lower metal part connection ring.
[0009] As an improvement to the present utility model, the insulation umbrella skirts are two layers.
[0010] As an improvement to the present utility model, the insulation umbrella skirts are made of silica gel.
[0011] As an improvement to the present utility model, at least one first sealing groove for sealing connection with the insulation umbrella skirt is provided on the outer surface of the upper metal part connection ring.
[0012] As an improvement to the present utility model, at least one second sealing groove for sealing connection with the insulation umbrella skirt is provided on the surface where the upper metal part body is connected to the upper metal part connection ring.
[0013] As an improvement to the present utility model, at least one third sealing groove for sealing connection with the insulation umbrella skirt 4 is provided on the outer surface of the lower metal part connection ring.
[0014] As an improvement to the present utility model, the cross-section of the lower metal part body is a spherical segment shape.
[0015] As an improvement to the present utility model, the surface of the lower metal part body is a corrugated surface.
[0016] The present utility model has the following beneficial effects:
[0017] 1. Compared with the conventional C-shaped rail insulation bracket, it has the advantage of shorter height (the overall length after connecting the upper metal part, the insulation body, and the lower metal part is between 180mm and 210mm). The two ends of the insulation body are crimped, and compared with the conventional C-shaped rail insulation bracket connected by cement bonding, its mechanical strength is stronger and it can meet the torque requirements.
[0018] 2. To meet the requirements of the insulation gap distance at both ends of the upper metal part and the lower metal part, a number of convex rings and grooves for extending the arc electrical distance are provided on the outer surface of the epoxy resin rod located between the upper metal part connection ring and the lower metal part connection ring, improving the electrical insulation performance of the product.
[0019] 3. At the same time, a number of sealant sealing grooves are provided at the sealant positions at both ends of the upper metal part and the lower metal part, enhancing the sealing performance of the silicone umbrella skirt.
[0020] 4. The cross-section of the lower metal part main body is set as a spherical segment shape, overcoming the problem of inaccurate positioning during on-site installation of traditional C-shaped rail insulation brackets.
[0021] 5. The outer surface of the lower metal part main body is treated with a corrugated surface, effectively improving the stability and safety of the installation of the C-shaped rail insulation bracket. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a partial cross-sectional schematic diagram of an embodiment of the present utility model.
[0023] Figure 2 It is Figure 1 the upward view structure schematic diagram.
[0024] Figure 3 It is Figure 1 the enlarged structure schematic diagram at A-A in (showing the spherical segment structure).
[0025] Figure 4 It is Figure 1 the enlarged structure schematic diagram at position B in (showing the corrugated surface). DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] Refer to Figures 1 to 4 , Figures 1 to 4Disclosed is a C-shaped rail insulation bracket, which comprises an upper metal part 1, an insulation main body 2 and a lower metal part 3 connected in sequence. The upper metal part 1 includes an upper metal part main body 11 and an upper metal part connection ring 12 protruding from the surface of the upper metal part main body 11 on one side of the upper metal part main body 11. The upper metal part main body 11 is sheet-shaped (changing the upper metal part main body 11 to sheet-shaped can shorten the overall length); the lower metal part 3 includes a lower metal part main body 31 and a lower metal part connection ring 32 at one end of the lower metal part main body 31. The lower metal part main body 31 is rod-shaped; the insulation main body 2 is an epoxy resin rod, and one end of the epoxy resin rod is crimped to the upper metal part connection ring 12; the other end of the epoxy resin rod is crimped to the lower metal part connection ring 32; in this embodiment, both the upper metal part 1 and the lower metal part 2 are connected to the insulation main body 2 by crimping, which can improve the connection torque between the upper metal part 1, the lower metal part 2 and the insulation main body 2, and improve the strength of the C-shaped rail insulation bracket. On the outer surface of the epoxy resin rod between the upper metal part connection ring 12 and the lower metal part connection ring 32, there are several convex rings 21 and grooves 22 for extending the arc electric distance. By setting the convex rings 21 and grooves 22, the creepage distance of the insulation main body 2 can be extended; the overall length after the upper metal part 1, the insulation main body 2 and the lower metal part 3 are connected is between 180 mm and 210 mm, making the overall length of the present utility model shorter, which is beneficial to installation in a narrow space.
[0028] Preferably, insulation umbrella skirts 4 are provided on the outer surfaces of the upper metal part connection ring 12, the insulation main body 2 and the lower metal part connection ring 32. The insulation umbrella skirts 4 are two layers. The insulation umbrella skirts 4 are made of silica gel.
[0029] Preferably, at least one first sealing groove 121 for sealing connection with the insulation umbrella skirt 4 is provided on the outer surface of the upper metal part connection ring 12.
[0030] Preferably, at least one second sealing groove 122 for sealing connection with the insulation umbrella skirt 4 is provided on the surface of the upper metal part main body 11 where it is connected to the upper metal part connection ring 12.
[0031] Preferably, at least one third sealing groove 321 for sealing connection with the insulation umbrella skirt 4 is provided on the outer surface of the lower metal part connection ring 32.
[0032] By providing multiple sealing grooves in the present utility model, the sealing performance between the insulation umbrella skirt 4 and the upper metal part 1, the lower metal part 2 and the insulation main body 2 can be increased.
[0033] Preferably, the cross-section of the lower metal part main body 31 is spherical segment-shaped, which can improve the positioning performance when docking with other components.
[0034] Preferably, the surface of the lower metal part body 31 is a corrugated surface, which can improve the stability and safety of the installation of the C-shaped rail insulating bracket.
[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A C-rail insulating bracket, comprising an upper metal part (1), an insulating body (2) and a lower metal part (3) connected in sequence, characterized in that: The upper metal component (1) comprises an upper metal component body (11) and an upper metal component connecting ring (12) located on one side of the upper metal component body (11) and protruding from the surface of the upper metal component body (11), and the upper metal component body (11) is in the form of a sheet; the lower metal component (3) comprises a lower metal component body (31) and a lower metal component connecting ring (32) located at one end of the lower metal component body (31), and the lower metal component body (31) is in the form of a rod; the insulating body (2) is an epoxy resin rod, and the epoxy resin One end of the fat rod is crimped to the upper metal component connecting ring (12); the other end of the epoxy resin rod is crimped to the lower metal component connecting ring (32); a plurality of convex rings (21) and grooves (22) for extending the arc distance are provided on the outer surface of the epoxy resin rod located between the upper metal component connecting ring (12) and the lower metal component connecting ring (32); the overall length of the upper metal component (1), the insulating body (2) and the lower metal component (3) after being connected is between 180 mm and 210 mm.
2. The C-rail insulating bracket according to claim 1, characterized in that: Insulating sheds (4) are provided on the outer surfaces of the upper metal component connecting ring (12), the insulating main body (2) and the lower metal component connecting ring (32).
3. The C-rail insulating bracket according to claim 2, characterized in that: The insulating shed (4) has two layers.
4. The C-rail insulating bracket according to claim 2 or 3, characterized in that: The insulating shed (4) is made of silica gel.
5. The C-rail insulating bracket according to claim 2 or 3, characterized in that: At least one first sealing groove (121) for sealingly connecting with the insulating shed (4) is provided on the outer surface of the upper metal component connecting ring (12).
6. The C-rail insulating bracket according to claim 2 or 3, characterized in that: At least one second sealing groove (122) for sealingly connecting with the insulating shed (4) is provided on the surface where the upper hardware body (11) is connected to the upper hardware connecting ring (12).
7. The C-rail insulating bracket according to claim 2 or 3, characterized in that: At least one third sealing groove (321) for sealingly connecting with the insulating shed (4) is provided on the outer surface of the lower metal component connecting ring (32).
8. The C-rail insulating bracket according to claim 1, 2 or 3, characterized in that: The cross section of the lower metal component body (31) is in the shape of a spherical segment.
9. The C-rail insulating bracket according to claim 8, characterized in that: The surface of the lower metal component body (31) is a corrugated surface.
10. The C-rail insulating bracket according to claim 1, 2 or 3, characterized in that: The surface of the lower metal component body (31) is a corrugated surface.