CN211543307U

CN211543307U - Railway contact net earth clamp

Info

Publication number: CN211543307U
Application number: CN201922372317.9U
Authority: CN
Inventors: 刘曜宁; 冀永军; 冀亚东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-22
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a railway contact net grounding wire clamp, which comprises a main rod, a pressure rod, an eccentric pinch roller, a snap spring, a front clamping hook sleeve, a rear clamping hook sleeve, a fixed ring, a ground wire, a snap spring fixed shaft, an eccentric wheel disc shaft and a pressure rod rotating shaft; it is characterized in that the front end of the main rod is provided with a thread; a front clamping hook sleeve and a rear clamping hook sleeve which can move along the axis of the rod body are arranged on the rod body of the main rod, and an eccentric pressing wheel is arranged on the rod body behind the rear clamping hook sleeve; one end of the clamp spring is hinged to the main rod through a clamp spring fixing shaft; the pressing rod extends into the eccentric pressing wheel, and the other end of the clamp spring is hinged and fixed with the pressing rod and the eccentric pressing wheel through an eccentric wheel disc shaft; a pressure lever rotating shaft is further arranged on the rod body of the main rod on the left side of the clamp spring fixing shaft, and the pressure lever is hinged with the main rod through the pressure lever rotating shaft; the thread department of mobile jib front end is equipped with solid fixed ring the top of depression bar is connected with the ground wire.

Description

Railway contact net earth clamp

Technical Field

The utility model relates to a railway contact net circuit technical field, concretely relates to railway contact net earth clamp.

Background

A railway contact network is a power transmission line which is erected over a railway line and supplies power to an electric locomotive, and current relied on by the running of a high-speed train is transmitted through the contact network at the upper end of the locomotive.

The grounding wire clamp is a tool frequently used in the emergency repair operation of a railway contact network, and can quickly lead the current of the contact network and a track into the ground, so that the operation safety of emergency repair personnel is ensured. At present, the earth clamp main part on the market is cylindric structure mostly, in order to form good contact with the rail, need polish the rust cleaning to the rail rusty part, simultaneously, other end bolt-up mode also makes whole equipment waste time and energy with the decomposition process, has seriously influenced contact net and has salvageed operating efficiency.

Disclosure of Invention

According to the defects of the prior art, the utility model provides a railway contact net grounding wire clamp, and the utility model aims to provide a high-efficiency and safe grounding wire clamp; the quick locking device designed according to the principle of the eccentric wheel is arranged on the grounding wire clamp, so that the assembling and disassembling time of the grounding wire clamp is saved.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a railway contact net grounding wire clamp comprises a main rod, a pressure rod, an eccentric pressing wheel, a clamp spring, a front clamp hook sleeve, a rear clamp hook sleeve, a fixing ring, a ground wire, a clamp spring fixing shaft, an eccentric wheel disc shaft and a pressure rod rotating shaft; it is characterized in that the front end of the main rod is provided with a thread; a front clamping hook sleeve and a rear clamping hook sleeve which can move along the axis of the rod body are arranged on the rod body of the main rod, and an eccentric pressing wheel is arranged on the rod body behind the rear clamping hook sleeve; one end of the clamp spring is hinged to the main rod through a clamp spring fixing shaft; the pressing rod extends into the eccentric pressing wheel, and the other end of the clamp spring is hinged and fixed with the pressing rod and the eccentric pressing wheel through an eccentric wheel disc shaft; a pressure lever rotating shaft is further arranged on the rod body of the main rod on the left side of the clamp spring fixing shaft, and the pressure lever is hinged with the main rod through the pressure lever rotating shaft; the thread department of mobile jib front end is equipped with solid fixed ring the top of depression bar is connected with the ground wire.

Preferably, the bottom of the pressure lever is of a double-layer frame structure.

Preferably, the eccentric wheel and the clamp spring are arranged at two sides of the pressure rod to form a symmetrical structure.

Preferably, the eccentric disc shaft and the compression bar rotating shaft are deviated to the outer side of the rail in the eccentric wheel.

Preferably, the first and the rear hook clamping sleeves are composed of an upper part and a lower part, and the upper part is of a hook-shaped structure bent towards the outer side of the rail; the lower part is a sleeve structure.

Preferably, the tail part of the main rod is provided with a stop which is larger than the diameter of the main rod.

Preferably, the fixing ring is of a conical sleeve-shaped structure, and the edge of the fixing ring is provided with a notch.

Preferably, barbs are arranged on the first and second hook clamping sleeves.

Preferably, one end of the main rod is bent to be in a hook-shaped structure, the other end of the main rod is in a straight state, the rod body of the main rod is only provided with a rear clamping hook sleeve, the rear end of the clamping hook sleeve is also nested with a long sleeve, and the eccentric wheel disc is hinged to the main rod.

The utility model discloses beneficial effect has following several:

1. the pressing rod can be opened and fixed on the rail in a pressing mode, and convenience and rapidness are achieved.

2. The inside jump ring that is equipped with of device is elastic reset effect when pressing the back pine.

3. The device is provided with the inverted teeth, so that the dirt and the iron rust on the surface of the steel rail can be broken in the clamping process, and the operation of cleaning the steel rail is omitted on the premise of ensuring good conductive contact.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the clamping structure of the present invention.

Fig. 3 is a schematic diagram of the front end structure of the main rod of the present invention.

Fig. 4 is a schematic structural view of the first and the rear hook sleeve of the present invention.

Fig. 5 is the schematic diagram of the internal structure of the eccentric pressing wheel of the present invention.

Fig. 6 is a schematic diagram of the symmetrical structure of the main rod of the present invention.

In the figure, a main rod 1, a pressure rod 2, an eccentric pressing wheel 3, a clamp spring 4, a front clamping hook sleeve 5, a rear clamping hook sleeve 6, a fixing ring 7, a ground wire 8, a clamp spring fixing shaft 9, an eccentric wheel disc shaft 10, a pressure rod rotating shaft 11 and a rail 12.

Detailed Description

In order to better show the content of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1,2,3,4, and 5, a railway contact network grounding clamp comprises a main rod 1, a pressure rod 2, an eccentric pressing wheel 3, a clamp spring 4, a front clamp hook sleeve 5, a rear clamp hook sleeve, a fixing ring 7, a ground wire 8, a clamp spring fixing shaft 9, an eccentric wheel disc shaft 10, and a pressure rod rotating shaft 11; the front end of the main rod 1 is provided with threads, and the tail part of the main rod 1 is provided with a spherical bulge with the diameter larger than that of the main rod 1; a front clamping hook sleeve 5 and a rear clamping hook sleeve 6 are nested on the rod body of the main rod 1, and an eccentric pressing wheel 3 is arranged on the rod body behind the rear clamping hook sleeve; wherein the first and the rear hook clamping sleeves are composed of an upper part and a lower part, and the upper part is a hook-shaped structure bent towards the outer side of the rail 12; the lower part is a sleeve structure; one end of the clamp spring 4 is hinged to the main rod 1 through a clamp spring fixing shaft 9; the pressing rod 2 extends into the eccentric pressing wheel 3 and the eccentric pressing wheel 3, and the other end of the clamp spring 4 is hinged and fixed with the pressing rod 2 and the eccentric pressing wheel 3 through an eccentric wheel disc shaft 10; the bottom of the pressure lever 2 is a double-layer frame structure and is clamped on the eccentric wheel; a pressure lever rotating shaft 11 is further arranged on the rod body of the main rod 1 on the left side of the clamp spring fixing shaft 9, and the pressure lever 2 is hinged with the main rod 1 through the pressure lever rotating shaft 11; a fixing ring 7 is arranged at the thread position at the front end of the main rod 1, the fixing ring 7 is in a conical sleeve-shaped structure, and a notch is formed in the edge; after the top of the compression bar 2 is connected with a ground wire 8 and is communicated with the ground wire 8, when the ground wire 8 passes through current, the current can be led into the ground through a rail 12; in order to press the eccentric wheel on the rear clamping hook sleeve 6, the eccentric wheel disk shaft 10 and the pressure lever rotating shaft 11 are biased to the outer side of the rail 12 in the eccentric wheel; barbs are arranged on the front-mounted clamping hook sleeve and the rear-mounted clamping hook sleeve, so that rust on the surface of the steel rail is broken by the grounding wire 8 clamp in the fastening process, and good contact between the grounding wire 8 clamp and the steel rail is guaranteed.

As shown in fig. 6, example 1: the eccentric wheel and the clamp spring 4 are arranged on two sides of the pressure rod 2 to be of a symmetrical structure or a single-side structure, the main rod 1 is clamped in the middle of the eccentric wheel, and the main rod 1 in the structure is stressed uniformly in the middle during pressing.

Example 2: the eccentric wheel and the clamp spring 4 are arranged on one side of the pressure rod 2, and compared with the structure in the embodiment 1, the gap in the middle of the eccentric wheel is smaller.

Example 3: the one end of mobile jib is bent and is colluded the column structure, and the other end is straight state, and the pole body of mobile jib only is equipped with rearmounted double-layered hook sleeve, and the telescopic rear end of double-layered hook still nests there is the long sleeve, and eccentric rim plate is articulated with the mobile jib.

As shown in fig. 2 and 6, when in use, the pressing rod 2 is pressed by hand, the eccentric wheel rotates towards the rear end, and because the rotation center of the eccentric wheel is not at the center, the eccentric wheel can leave the rear clamping hook sleeve when rotating, at the moment, the clamping hook sleeve is not stressed any more, the position where the rear clamping hook sleeve 6 is separated from the front clamping hook sleeve 5 is larger than the width of the rail 12, after the clamping hook sleeve part of the device is clamped on the rail 12, the pressing rod 2 is released, and the pressing rod 2 can press the rear clamping hook sleeve 6 again due to the elastic force of the inner clamping spring 4 which recovers deformation, so that the clamping hook sleeve is fixed stably and can not fall off easily.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A railway contact net grounding wire clamp comprises a main rod, a pressure rod, an eccentric pressing wheel, a clamp spring, a front clamp hook sleeve, a rear clamp hook sleeve, a fixing ring, a ground wire, a clamp spring fixing shaft, an eccentric wheel disc shaft and a pressure rod rotating shaft; it is characterized in that the front end of the main rod is provided with a thread; a front clamping hook sleeve and a rear clamping hook sleeve which can move along the axis of the rod body are arranged on the rod body of the main rod, and an eccentric pressing wheel is arranged on the rod body behind the rear clamping hook sleeve; one end of the clamp spring is hinged to the main rod through a clamp spring fixing shaft; the pressing rod extends into the eccentric pressing wheel, and the other end of the clamp spring is hinged and fixed with the pressing rod and the eccentric pressing wheel through an eccentric wheel disc shaft; a pressure lever rotating shaft is further arranged on the rod body of the main rod on the left side of the clamp spring fixing shaft, and the pressure lever is hinged with the main rod through the pressure lever rotating shaft; the thread department of mobile jib front end is equipped with solid fixed ring the top of depression bar is connected with the ground wire.

2. The grounding clamp of the railway contact net according to claim 1, characterized in that: the bottom of the pressure lever is of a double-layer frame structure.

3. The grounding clamp of the railway contact net according to claim 1, characterized in that: the eccentric wheel and the clamp spring are arranged at two sides of the pressure rod to be of symmetrical structures.

4. The grounding clamp of the railway contact net according to claim 1, characterized in that: the eccentric wheel disc shaft and the compression bar rotating shaft are deviated to one side of the rail close to the outside in the eccentric wheel.

5. The grounding clamp of the railway contact net according to claim 1, characterized in that: the front-mounted and rear-mounted hook clamping sleeves are composed of an upper part and a lower part, and the upper part is of a hook-shaped structure bent towards the outer side of the rail; the lower part is a sleeve structure.

6. The grounding clamp of the railway contact net according to claim 1, characterized in that: the tail of the main rod is provided with a spherical bulge with the diameter larger than that of the main rod.

7. The grounding clamp of the railway contact net according to claim 1, characterized in that: the fixing ring is of a conical sleeve-shaped structure, and a notch is formed in the edge of the fixing ring.

8. The grounding clamp of the railway contact net according to claim 1, characterized in that: barbs are arranged on the front-mounted clamping hook sleeve and the rear-mounted clamping hook sleeve.

9. The grounding clamp of the railway contact net according to claim 1, characterized in that: the one end of mobile jib is bent and is colluded the column structure, and the other end is straight state, and the pole body of mobile jib only is equipped with rearmounted double-layered hook sleeve, and the telescopic rear end of double-layered hook still nests there is the long sleeve, and eccentric rim plate is articulated with the mobile jib.