CN219154289U

CN219154289U - C-shaped section cantilever pipe T-shaped connector

Info

Publication number: CN219154289U
Application number: CN202320342308.9U
Authority: CN
Inventors: 李晓军; 张旭峰; 林�建; 吴磊; 徐天文; 豆雯; 杨明乐; 王新宇; 王毅博; 周鹏波; 王艳艳
Original assignee: China Railway High Speed Electrification Equipment Corp Ltd
Current assignee: China Railway High Speed Electrification Equipment Corp Ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-06-09
Anticipated expiration: 2033-02-28

Abstract

The T-shaped connector comprises a T-shaped body and two T-shaped bolts, wherein the T-shaped body consists of a straight section and vertical double ears positioned below the straight section; the two ends of the straight section are provided with vertical connecting holes, the vertical double ears are provided with horizontal connecting holes, two T-shaped bolts respectively penetrate through the vertical connecting holes from top to bottom and then are sleeved with nuts, and connecting shafts penetrate through the horizontal connecting holes. The utility model can be matched with a cantilever pipe with a C-shaped section for use.

Description

C-shaped section cantilever pipe T-shaped connector

Technical Field

The utility model relates to the technical field of electrified railway contact network equipment, in particular to a C-shaped section cantilever pipe T-shaped connector.

Background

The existing overhead line cantilever supporting device consists of a flat cantilever, an inclined cantilever, a supporting rod and a positioning pipe, wherein the flat cantilever, the inclined cantilever, the supporting rod and the positioning pipe are all made of metal pipes, and the connecting nodes are connected by adopting hoop parts through various bolts. When the flat wrist arm and the inclined wrist arm are made of metal pipes, water is easy to fill in the cantilever pipe in rainy seasons, frost heaving is easy to cause in winter, and the pipe wall is broken. Moreover, the anti-corrosion treatment of the cantilever pipe generally adopts hot dip galvanization, but the inner wall of the closed pipe with the length of more than 3 meters cannot be subjected to shot blasting and anti-corrosion treatment, so that the inner wall of the cantilever pipe is easy to rust and rust in coastal areas and tunnels to cause safety accidents. If the zinc-plated anticorrosive coating is used in a high altitude area of a plateau, the galvanized anticorrosive coating of the pipe wall can be stripped due to uneven pressure difference stress between the inside and the outside of the closed pipe. For this reason, related enterprises have developed a C-section cantilever pipe to overcome the above-mentioned drawbacks of the circular closed cantilever pipe. However, the existing hoop type connector is difficult to be matched with a C-shaped section cantilever pipe, so that development of a C-shaped section cantilever pipe T-shaped connector is urgently needed.

Disclosure of Invention

The utility model provides a T-shaped connector of a cantilever pipe with a C-shaped section, which is matched with the cantilever pipe with the C-shaped section for use.

The technical scheme adopted by the utility model is as follows: the T-shaped connector comprises a T-shaped body and two T-shaped bolts, wherein the T-shaped body consists of a straight section and vertical double ears positioned below the straight section; the two ends of the straight section are provided with vertical connecting holes, the vertical double ears are provided with horizontal connecting holes, two T-shaped bolts respectively penetrate through the vertical connecting holes from top to bottom and then are sleeved with nuts, and connecting shafts penetrate through the horizontal connecting holes.

The vertical double ears are arranged along the axial direction of the cantilever pipe with the C-shaped section.

The inner end face of the bolt head of the T-shaped bolt is a symmetrical dovetail face, and the dovetail face is matched with the inner side face of the notch end of the wrist-arm pipe with the C-shaped section.

The nut is a locknut, and the connecting shaft is a bolt pin.

The center of the straight section is provided with a groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model realizes the matched use with the cantilever pipe with the C-shaped section, and has the advantages of simple structure, reliable connection and convenient installation.

2. According to the utility model, the bolt head of the T-shaped bolt is clamped in the notch of the cantilever pipe with the C-shaped section, and the neutral surface of the connector is naturally positioned on the vertical surface, so that readjustment is not needed, the installation procedure is simplified, the construction efficiency is improved, and the maintenance cost is reduced.

3. The inner end face of the T-shaped bolt head is a symmetrical dovetail face, and the dovetail face is matched with the inner side face of the notch end of the cantilever pipe with the C-shaped section; the T-shaped bolt after being fastened has good anti-slip effect, and the connection reliability is improved.

Drawings

FIG. 1 is a front elevational view of the structure of the present utility model;

FIG. 2 is a left side view of the structure of the present utility model;

FIG. 3 is a cross-sectional view of the T-shaped body structure of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a schematic view of the use state of the present utility model.

Detailed Description

The utility model will be described in detail with reference to the embodiments of fig. 1 to 5.

The T-shaped connector of the cantilever pipe with the C-shaped cross section comprises a T-shaped body 1 and two T-shaped bolts 2, wherein the T-shaped body 1 is composed of a straight section 1-1 and vertical double ears 1-2 positioned below the straight section 1-1; the two ends of the straight section 1-1 are provided with vertical connecting holes 1-4, the vertical double ears 1-2 are provided with horizontal connecting holes 1-3, two T-shaped bolts 2 respectively penetrate through the vertical connecting holes 1-4 from top to bottom and then are sleeved with nuts 3, and the horizontal connecting holes 1-3 are internally provided with connecting shafts 4 in a penetrating mode.

The vertical double ears 1-2 are arranged along the axial direction of the cantilever pipe 5 with the C-shaped section so as to ensure the consistency of the connection direction.

The inner end face of the bolt head of the T-shaped bolt 2 is a symmetrical dovetail face 2-1, and the dovetail face 2-1 is matched with the inner side face 5-1 of the notch end of the C-section cantilever pipe 5. The T-shaped bolt 3 after being fastened has good anti-slip effect, and the connection reliability is improved.

The nut 3 is a locknut, and the connecting shaft 4 is a bolt pin, so that the lockeffect is improved.

The T-shaped body 1 is preferably a steel piece and is manufactured by adopting a die forging process, and the center of the straight section 1-1 is provided with a groove 1-5 so as to ensure that the wall thickness of the T-shaped body 1 is uniform, save materials and reduce stress concentration.

When the connector is used, the T-shaped bolt 2 on the connector 7 slides in from a notch on the flat cantilever pipe 8 with the C-shaped section, the bolt head of the T-shaped bolt 3 spans the inner end of the notch, the installation position of the connector 7 on the flat cantilever pipe 8 is adjusted, the connector and the flat cantilever pipe are fixed together by fastening the nut 3 at the lower part of the T-shaped bolt 2, in order to ensure reliable connection and prevent loosening of the bolt, the nut 3 is formed by fastening two locknuts together, and a gasket 6 is sleeved between the locknut and the T-shaped body 1; finally, the single lug at the upper end of the cantilever support 9 or the single lug at the upper end of the inclined cantilever pipe 10 with the C-shaped cross section is hinged with the double lugs below the connector 7 through the bolt pin 4, so that the connection between the flat cantilever and the inclined cantilever as well as the connection between the cantilever support and the flat cantilever are realized, and the neutral plane of the connector 7 is naturally positioned on the vertical plane. The connector 7 can be fixed at a proper position on the C-section oblique cantilever pipe 10, and the single lugs at the two ends of the positioning pipe 11 are hinged with the double lugs below the connector 7 through the bolt pin 4, so that the connection between the positioning pipe 11 and the flat cantilever as well as the connection between the positioning pipe and the oblique cantilever are realized, and the neutral plane of the connector 7 is naturally positioned on a vertical plane.

The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, so that all equivalent modifications made by the appended claims shall be included in the scope of the present utility model.

Claims

1. A C-shaped section cantilever pipe T-shaped connector is characterized in that: the T-shaped bolt comprises a T-shaped body (1) and two T-shaped bolts (2), wherein the T-shaped body (1) is composed of a straight section (1-1) and vertical double ears (1-2) positioned below the straight section (1-1); the two ends of the straight section (1-1) are provided with vertical connecting holes (1-4), the vertical double ears (1-2) are provided with horizontal connecting holes (1-3), two T-shaped bolts (2) respectively penetrate through the vertical connecting holes (1-4) from top to bottom and then are sleeved with nuts (3), and connecting shafts (4) are arranged in the horizontal connecting holes (1-3) in a penetrating mode.

2. A C-section cantilever pipe T-connector according to claim 1, wherein: the vertical double ears (1-2) are arranged along the axial direction of the cantilever pipe (5) with the C-shaped section.

3. A C-section cantilever pipe T-connector according to claim 1 or 2, wherein: the inner end face of the bolt head of the T-shaped bolt (2) is a symmetrical dovetail face (2-1), and the dovetail face (2-1) is matched with the inner side face (5-1) of the notch end of the C-section cantilever pipe (5).

4. A C-section cantilever pipe T-connector according to claim 3, wherein: the nut (3) is a locknut, and the connecting shaft (4) is a bolt pin.

5. A C-section cantilever pipe T-connector according to claim 4, wherein: the center of the straight section (1-1) is provided with a groove (1-5).