CN217477146U - Low clearance rigid contact net suspension device - Google Patents
Low clearance rigid contact net suspension device Download PDFInfo
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- CN217477146U CN217477146U CN202221492776.6U CN202221492776U CN217477146U CN 217477146 U CN217477146 U CN 217477146U CN 202221492776 U CN202221492776 U CN 202221492776U CN 217477146 U CN217477146 U CN 217477146U
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- insulator
- mounting base
- fixed
- connecting axle
- cavity
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Abstract
The utility model provides a low headroom rigidity contact net linkage, includes installation base (1), connecting axle (3), insulator (2) and location fastener (4), the below of installation base (1) is fixed with insulator (2), the below of insulator (2) is fixed with connecting axle (3), the lower extreme of connecting axle (3) has hung location fastener (4), and location fastener (4) can be rotatory around connecting axle (3). The utility model overcomes the limitation that existing product is difficult to normal installation has satisfied the installation needs that low headroom tunnel rigidity contact net hung.
Description
Technical Field
The utility model belongs to the technical field of rail transit rigidity contact net technique and specifically relates to a low headroom rigidity contact net linkage is related to.
Background
The rigid contact net suspension device is used as a common device in a rigid contact net power supply system, is arranged on a tunnel top anchor bolt or an embedded channel bolt and plays a role in supporting and fixing a busbar; at present, the suspension of a low-clearance rigid contact network is mainly realized by an insulating cross brace, the insulating cross brace is directly installed on a tunnel top anchor bolt or a pre-buried channel bolt, and a positioning wire clamp is connected at the lower part of the insulating cross brace, so that the effect of supporting and fixing a busbar is achieved, and the accuracy and the stability of a rigid suspension point are ensured. With the development of electrified railways, the existing low-clearance rigid contact net suspension device has certain limitations in the use process, firstly, when the tunnel clearance is relatively low, the reserved installation space is insufficient, and an insulation cross brace cannot be adopted; secondly, the civil engineering error in tunnel leads to insulating stull unable normal installation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low headroom rigidity contact net linkage to overcome the not enough of prior art.
The utility model adopts the technical proposal that: the utility model provides a low headroom rigidity contact net linkage, includes installation base, connecting axle, insulator and location fastener, the below of installation base is fixed with the insulator, the below of insulator is fixed with the connecting axle, the lower extreme of connecting axle has hung the location fastener, and the location fastener can be rotatory around the connecting axle.
The mounting base is a mounting plate, an annular structure protrudes from the center of the lower part of the mounting plate, and strip-shaped mounting holes are formed in two ends of the mounting plate; the insulator is a ceramic insulator, the upper end of the ceramic insulator is embedded and fixed in the annular structure, a cavity is formed in the center of the lower end of the ceramic insulator, and the upper end of the connecting shaft is embedded and fixed in the cavity.
The mounting base is characterized in that a through hole is formed in the center of the mounting base, the insulator is a silicon rubber insulator, the upper end of the silicon rubber insulator is provided with a connecting bolt, the lower end of the silicon rubber insulator is embedded with an internal thread sleeve, the connecting bolt penetrates through the through hole and then is fixed below the mounting base through a locking nut, and the upper end of the connecting shaft is in threaded connection with the inside of the threaded sleeve.
An annular groove is formed in the inner wall of the annular structure, and the upper end of the ceramic insulator is bonded in the annular structure; the cavity is an inverted trapezoidal cavity; the upper end of the connecting shaft is of an inverted trapezoidal structure, and the inverted trapezoidal structure is embedded in the inverted trapezoidal cavity and is fixedly bonded.
The center of the mounting base protrudes upwards, the two ends of the mounting base are provided with strip-shaped mounting holes, and then an accommodating space is formed below the mounting base, and the silicon rubber insulator is positioned in the accommodating space.
The lower end of the connecting shaft is provided with an annular shoulder, the positioning wire clamp is formed by connecting two wire clamp bodies which are symmetrically arranged through a bolt pair, and the two wire clamp bodies are sleeved on the annular shoulder through stepped holes formed in the combined surfaces of the two wire clamp bodies.
Compared with the prior art, the utility model discloses beneficial effect who has:
1. by adopting the design scheme of combining the simplified base and the insulator, the limitation that the existing product is difficult to normally install is overcome, and the installation requirement of rigid contact net suspension of the low-clearance tunnel is met.
2. The method has strong adaptability to the installation environment and low requirement on the accuracy of civil engineering errors of the tunnel.
3. Simple structure, installation and maintenance are quick and convenient.
Drawings
Fig. 1 is a schematic structural sectional view of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a second embodiment of the present invention;
fig. 3 is the schematic view of the positioning clip structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1: the details will be described with reference to fig. 1 and 3.
The utility model provides a low headroom rigidity contact net linkage, includes installation base 1, connecting axle 3, insulator 2 and location fastener 4, the below of installation base 1 is fixed with insulator 2, the below of insulator 2 is fixed with connecting axle 3, the lower extreme of connecting axle 3 has hung location fastener 4, and location fastener 4 can be rotatory around connecting axle 3.
The mounting base 1 is a mounting plate, an annular structure 1-1 protrudes from the center of the lower part of the mounting plate, and strip-shaped mounting holes 1-2 are formed in two ends of the mounting plate; the insulator 2 is a ceramic insulator, the upper end of the ceramic insulator is embedded and fixed in the annular structure 1-1, the center of the lower end of the ceramic insulator is provided with a cavity 2-1, and the upper end of the connecting shaft 3 is embedded and fixed in the cavity 2-1.
An annular groove 1-4 is formed in the inner wall of the annular structure 1-1, and the upper end of the ceramic insulator is bonded in the annular structure 1-1; the cavity 2-1 is an inverted trapezoidal cavity; the upper end of the connecting shaft 3 is of an inverted trapezoidal structure 3-1, and the inverted trapezoidal structure 3-1 is embedded in the inverted trapezoidal cavity and is fixedly bonded. Through annular groove, fall trapezium structure, guarantee the fastness and the reliability of bonding fixed. The mounting base 1, the insulator 2 and the connecting shaft 3 are integrated into a whole structure.
The lower end of the connecting shaft 3 is provided with an annular shoulder 3-2, the positioning wire clamp 4 is formed by connecting two wire clamp bodies 4-1 which are symmetrically arranged through a bolt pair 4-2, and the two wire clamp bodies 4-1 are sleeved on the annular shoulder 3-2 through a step hole 4-3 formed in a combining surface of the two wire clamp bodies.
Example 2: the details will be described with reference to fig. 2 and 3.
The utility model provides a low headroom rigidity contact net linkage, includes installation base 1, connecting axle 3, insulator 2 and location fastener 4, the below of installation base 1 is fixed with insulator 2, the below of insulator 2 is fixed with connecting axle 3, the lower extreme of connecting axle 3 has hung location fastener 4, and location fastener 4 can be rotatory around connecting axle 3.
The mounting structure is characterized in that a through hole 1-3 is formed in the center of the mounting base 1, the insulator 2 is a silicon rubber insulator, a connecting bolt 2-2 is arranged at the upper end of the silicon rubber insulator, an internal thread sleeve 2-3 is embedded at the lower end of the silicon rubber insulator, the connecting bolt 2-2 penetrates through the through hole 1-3 and then is fixed below the mounting base 1 through a locking nut 2-4, and the upper end of the connecting shaft 3 is in threaded connection with the thread sleeve 2-3. The mounting base 1, the insulator 2 and the connecting shaft 3 are formed as a separate structure.
The center of the mounting base 1 protrudes upwards, strip-shaped mounting holes 1-2 are formed in two ends of the mounting base, an accommodating space is formed below the mounting base, and the silicon rubber insulator is located in the accommodating space. Further saving installation space.
The lower end of the connecting shaft 3 is provided with an annular shoulder 3-2, the positioning wire clamp 4 is formed by connecting two wire clamp bodies 4-1 which are symmetrically arranged through a bolt pair 4-2, and the two wire clamp bodies 4-1 are sleeved on the annular shoulder 3-2 through a step hole 4-3 formed in a combining surface of the two wire clamp bodies.
The utility model discloses can be according to installation environment requirement selection use embodiment 1 or embodiment 2, under general condition, embodiment 1 is used for the installation of flat top tunnel to use, and embodiment 2 is used for the installation of dome tunnel to use.
During specific installation, the bar-shaped mounting holes 1-2 are in fastening connection with anchor bolts or pre-buried channel bolts at the top of a tunnel, the bus bar 5 is clamped by the positioning wire clamps 4, 360-degree free rotation of the positioning wire clamps 4 around the connecting shaft 3 is guaranteed, and the bus bar 5 can freely move along the line direction.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a low headroom rigidity contact net linkage which characterized in that: including installation base (1), connecting axle (3), insulator (2) and location fastener (4), the below of installation base (1) is fixed with insulator (2), the below of insulator (2) is fixed with connecting axle (3), the lower extreme of connecting axle (3) has hung location fastener (4), and location fastener (4) can be rotatory around connecting axle (3).
2. The suspension device of claim 1, wherein: the mounting base (1) is a mounting plate, an annular structure (1-1) protrudes from the center of the lower part of the mounting plate, and strip-shaped mounting holes (1-2) are formed in the two ends of the mounting plate; the insulator (2) is a ceramic insulator, the upper end of the ceramic insulator is embedded and fixed in the annular structure (1-1), a cavity (2-1) is formed in the center of the lower end of the ceramic insulator, and the upper end of the connecting shaft (3) is embedded and fixed in the cavity (2-1).
3. The suspension device of claim 1, wherein: the mounting base is characterized in that a through hole (1-3) is formed in the center of the mounting base (1), the insulator (2) is a silicon rubber insulator, a connecting bolt (2-2) is arranged at the upper end of the silicon rubber insulator, an internal thread sleeve (2-3) is embedded at the lower end of the silicon rubber insulator, the connecting bolt (2-2) penetrates through the through hole (1-3) and then is fixed below the mounting base (1) through a locking nut (2-4), and the upper end of the connecting shaft (3) is in threaded connection with the inside of the threaded sleeve (2-3).
4. A low headroom rigid catenary suspension as in claim 2 wherein: an annular groove (1-4) is formed in the inner wall of the annular structure (1-1), and the upper end of the ceramic insulator is bonded in the annular structure (1-1); the cavity (2-1) is an inverted trapezoidal cavity; the upper end of the connecting shaft (3) is of an inverted trapezoidal structure (3-1), and the inverted trapezoidal structure (3-1) is embedded in the inverted trapezoidal cavity and is fixedly bonded.
5. A low headroom rigid catenary suspension as in claim 3 wherein: the center of the mounting base (1) protrudes upwards, two ends of the mounting base are provided with strip-shaped mounting holes (1-2), and then an accommodating space is formed below the mounting base, and the silicon rubber insulator is located in the accommodating space.
6. A low headroom rigid catenary suspension of claim 1, 2, 3, 4, or 5 wherein: the lower end of the connecting shaft (3) is provided with an annular shoulder (3-2), the positioning wire clamp (4) is formed by connecting two wire clamp bodies (4-1) which are symmetrically arranged through a bolt pair (4-2), and the two wire clamp bodies (4-1) are sleeved on the annular shoulder (3-2) through stepped holes (4-3) formed in the joint surface of the two wire clamp bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492776.6U CN217477146U (en) | 2022-06-15 | 2022-06-15 | Low clearance rigid contact net suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492776.6U CN217477146U (en) | 2022-06-15 | 2022-06-15 | Low clearance rigid contact net suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217477146U true CN217477146U (en) | 2022-09-23 |
Family
ID=83314332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221492776.6U Active CN217477146U (en) | 2022-06-15 | 2022-06-15 | Low clearance rigid contact net suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217477146U (en) |
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2022
- 2022-06-15 CN CN202221492776.6U patent/CN217477146U/en active Active
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