Key-embedded type positioning wire clamp

Abstract

The utility model relates to the technical field of railway contact net positioning wire clamps, in particular to an embedded key type positioning wire clamp. A traditional catenary positioning wire clamp is complex in structure, needs to adopt a thread pair to connect a fastener, and is inconvenient to install and overhaul. Based on the above problem, the embedded key type positioning wire clamp structurally comprises a main clamping plate, an auxiliary clamping plate, a positioning pin and a connecting key, the main clamping plate and the auxiliary clamping plate are correspondingly provided with a boss and a groove, and the main clamping plate and the auxiliary clamping plate vertically fix the positioning pin through the boss and the groove which are correspondingly arranged. The connecting key is used for clamping and fixing the main clamping plate and the auxiliary clamping plate, the fixing of the contact wire by the positioning wire clamp is realized by adopting the principle of fixed connection of a tenon-and-mortise structure, the positioning wire clamp does not use any thread pair connecting fastener, the mounting, the fixing, the dismounting and the maintenance of the positioning wire clamp are very simple and convenient, and the working efficiency is remarkably improved. And the transportation safety of a railway transportation system is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of railway contact network positioning wire clamps, in particular to a key-embedded positioning wire clamp. Background Art

[0002] The development of railways can drive economic development. Efficient railway transportation is an important guarantee for the national economic development. The positioning wire clamp is a key component in the railway contact network system. It is used to fix the contact wire to ensure its stability and safety during the operation of high-speed trains. The positioning wire clamp of the traditional contact wire has a complex structure, is inconvenient to install and maintain, and has great safety hazards. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the traditional contact network positioning wire clamp has a complex structure and needs to use threaded pair connection fasteners, which is inconvenient to install and repair. Based on the above problems, the utility model provides a key-embedded positioning wire clamp, including a main clamping plate, a secondary clamping plate, a positioning pin and a connecting key, characterized in that:

[0004] The main plate is provided with a main boss and a main groove on the inner side, and the auxiliary plate is provided with an auxiliary boss and an auxiliary groove on the inner side. The main boss is embedded in the auxiliary groove, and the auxiliary boss is embedded in the main groove, so that the main boss and the auxiliary boss are arranged opposite to each other, and through holes that are connected to each other are provided on the opposite end surfaces of the main boss and the auxiliary boss.

[0005] The lower inner parts of the main splint and the auxiliary splint are also symmetrically provided with wire clamp protrusions;

[0006] When the connecting key passes through the through holes on the main plate and the auxiliary plate, the positioning pins between the main plate and the auxiliary plate are axially fixed, and the wire clamp protrusions are clamped and fixed to the contact wire.

[0007] Preferably, the connecting key is cylindrical, and the through holes on the end faces opposite to the main boss and the auxiliary boss are coaxially arranged.

[0008] Preferably, the connecting key passes through corresponding through holes on the main boss and the auxiliary boss in sequence to tightly and fixedly connect the main plate and the auxiliary plate, and the connecting key and the through hole form an interference fit.

[0009] Preferably, there are two through holes on the end faces opposite to the main boss and the auxiliary boss, which correspond to each other and are interconnected. This arrangement can make the main clamping plate and the auxiliary clamping plate have better mechanical strength in the lateral direction, so that the positioning wire clamp can fix the contact wire in the lateral position more stably and not easy to shake.

[0010] Preferably, the main plate and the auxiliary plate (3) are symmetrically provided with semicircular slots in the middle of the top ends, and rectangular through holes are symmetrically opened on the plate bodies of the main plate and the auxiliary plate below the two semicircular slots.

[0011] The positioning pin comprises a first annular boss at the end and a pin body, the radius of the first annular boss is greater than the radius of the semicircular slot, and the length of the first annular boss is not greater than the height of the rectangular through hole in a direction perpendicular to the horizontal direction;

[0012] The radius of the pin body is equal to the radius of the semicircular slot hole, the first annular boss is located in the rectangular through hole, and the pin body is located in the groove formed by the two semicircular slot holes.

[0013] Preferably, a main boss and a secondary groove are respectively provided on the inner sides of the main clamping plate and the secondary clamping plate between the rectangular through hole and the wire clamping protrusion, the height of the main boss in the horizontal direction is equal to the groove depth of the secondary groove and can be completely embedded in the secondary groove, the groove depth of the secondary groove is less than the wall thickness of the secondary clamping plate body at this position, and the length of the main boss is less than the longitudinal length of the orthographic projection of the main clamping plate in the horizontal plane;

[0014] A main groove and a secondary boss are respectively provided on the inner sides of the main plate and the secondary plate between the rectangular through hole and the wire clamp protrusion. The height of the secondary boss is equal to the depth of the main groove and can be completely embedded in the main groove. The depth of the main groove is equal to the depth of the secondary groove. The sum of the length of the secondary boss and the length of the main boss is not greater than the longitudinal length of the orthographic projection of the main plate in the horizontal plane.

[0015] Preferably, the length of the secondary boss is equal to the length of the main boss, and the sum of the two is also equal to the longitudinal length of the orthographic projection of the main plate in the horizontal plane. This can make the main plate and the secondary plate have better mechanical strength in the longitudinal direction, and make the positioning wire clamp more stable in fixing the contact line in the longitudinal position and less likely to shake.

[0016] Preferably, the cross section of the protruding end of the wire clamp gradually shrinks inwardly along a horizontal direction perpendicular to the inner side wall of the main plate.

[0017] Preferably, the cross-section of the protruding end of the clamp is triangular.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a key-embedded positioning wire clamp, which adopts a mortise and tenon structure to fix the main clamping plate and the auxiliary clamping plate of the positioning wire clamp. The device does not need to use any threaded pair to connect and fix structural parts, does not involve tightening torque, is easy to install, fix, disassemble and repair, can better fix the contact line, has a more stable structure and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1: It is a schematic diagram of the use status of a key-embedded positioning wire clamp of the utility model.

[0022] Figure 2 : It is an exploded view schematic diagram of a key-embedded positioning wire clamp of the utility model.

[0023] Figure 3 : It is a schematic diagram of the assembly position structure of the main clamping plate and the pin of a key-embedded positioning wire clamp of the utility model.

[0024] Figure 4 : It is a front view of a key-embedded positioning wire clamp of the utility model.

[0025] In the figure: 1. contact line, 2. main clamping plate, 2-1. main boss, 2-2. main groove, 3. auxiliary clamping plate, 3-1. auxiliary groove, 3-2. auxiliary boss, 4. pin, 4-1. first annular boss, 4-2. pin body, 5. wire clamp protrusion, 6. semicircular slot, 7. rectangular through hole, 8. through hole, 9. connecting key. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] like Figure 1-4 As shown in the figure, a key-embedded positioning wire clamp of the utility model is composed of a main clamping plate 2, a secondary clamping plate 3, a positioning pin 4 and a connecting key 9.

[0028] The main plate 2 has a main boss 2-1 and a main groove 2-2 on its inner side, and the auxiliary plate 3 has an auxiliary boss 3-2 and an auxiliary groove 3-1 on its inner side. The main boss 2-1 is embedded in the auxiliary groove 3-1, and the auxiliary boss 3-2 is embedded in the main groove 2-2, so that the main boss 2-1 and the auxiliary boss 3-2 are arranged opposite to each other. The end surfaces of the main boss 2-1 and the auxiliary boss 3-2 opposite to each other are provided with through holes 8 that are connected to each other.

[0029] The inner lower parts of the main splint 2 and the auxiliary splint 3 are also symmetrically provided with wire clamping protrusions 5;

[0030] When the connecting key 9 passes through the through holes 8 on the main plate 2 and the auxiliary plate 3 , the positioning pin 4 between the main plate 2 and the auxiliary plate 3 is axially fixed, and the wire clamp protrusion 5 clamps and fixes the contact wire 1 at the same time.

[0031] In order to facilitate the processing of the positioning wire clamp, the connecting key 9 is cylindrical, and the through holes 8 on the end faces opposite to the main boss 2-1 and the auxiliary boss 3-2 are coaxially arranged.

[0032] In order to ensure that the positioning wire clamp has better mechanical strength in the lateral direction, the connecting key 9 passes through the corresponding through holes 8 on the main boss 2-1 and the auxiliary boss 3-2 in turn, tightly and fixedly connecting the main clamp 2 and the auxiliary clamp 3, and the connecting key 9 forms an interference fit with the through hole 8.

[0033] In order to make the positioning wire clamp have better mechanical strength in the lateral direction, the main boss 2-1 and the auxiliary boss 3-2 have two through holes 8 on the opposite end faces, which correspond to each other and are interconnected. This arrangement can make the main clamp 2 and the auxiliary clamp 3 have better mechanical strength in the lateral direction, making the positioning wire clamp more stable in fixing the contact wire 1 in the lateral position and less likely to shake.

[0034] In order to better fix the positioning clamp, the main plate 2 and the auxiliary plate 3 (3) are symmetrically provided with semicircular slots 6 in the middle of the top, and rectangular through holes 7 are symmetrically opened on the plate bodies of the main plate 2 and the auxiliary plate 3 below the two semicircular slots 6.

[0035] The positioning pin 4 includes a first annular boss at the end and a pin body, the radius of the first annular boss is greater than the radius of the semicircular slot 6, and the length of the first annular boss is not greater than the height of the rectangular through hole 7 in a direction perpendicular to the horizontal direction;

[0036] The radius of the pin body is equal to the radius of the semicircular slot hole 6 , the first annular boss is located in the rectangular through hole 7 , and the pin body is located in the groove formed by the two semicircular slot holes 6 .

[0037] In order to make the positioning clamp have better mechanical strength in the longitudinal direction, the main plate 2 and the auxiliary plate 3 are respectively provided with a main boss 2-1 and an auxiliary groove 3-1 between the rectangular through hole 7 and the clamp protrusion 5. The height of the main boss 2-1 in the horizontal direction is equal to the groove depth of the auxiliary groove 3-1 and can be completely embedded in the auxiliary groove 3-1. The groove depth of the auxiliary groove 3-1 is less than the wall thickness of the main body of the auxiliary plate 3 at this position. The length of the main boss 2-1 is less than the longitudinal length of the orthographic projection of the main plate 2 in the horizontal plane.

[0038] A main groove 2-2 and a secondary boss 3-2 are respectively provided on the inner side of the main plate 2 and the secondary plate 3 between the rectangular through hole 7 and the wire clamp protrusion 5. The height of the secondary boss 3-2 is equal to the depth of the main groove 2-2 and can be completely embedded in the main groove 2-2. The depth of the main groove 2-2 is equal to the depth of the secondary groove 3-1. The sum of the length of the secondary boss 3-2 and the length of the main boss 2-1 is not greater than the longitudinal length of the orthographic projection of the main plate 2 in the horizontal plane.

[0039] In order to ensure that the positioning wire clamp has better mechanical strength in the longitudinal direction, the length of the auxiliary boss 3-2 is equal to the length of the main boss 2-1, and the sum of the two is also equal to the longitudinal length of the orthographic projection of the main splint 2 in the horizontal plane. This can make the main splint 2 and the auxiliary splint 3 have better mechanical strength in the longitudinal direction, making the positioning wire clamp more stable in fixing the contact wire 1 in the longitudinal position and less likely to shake.

[0040] In order to better clamp the contact wire 1 and prevent it from shaking, the cross section of the end of the wire clamp protrusion 5 gradually shrinks inwardly along a horizontal direction perpendicular to the inner wall of the main plate 2.

[0041] In order to better clamp the contact wire 1 so that the positioning clamp can better clamp the contact wire 1, the cross-section of the end of the clamp protrusion 5 is triangular.

[0042] During installation, the wire clamp protrusions 5 symmetrically arranged at the lower part of the main clamping plate 2 and the auxiliary clamping plate 3 are used to clamp the contact wire 1, and then the first annular boss of the positioning pin 4 is placed in the rectangular through hole 7 formed by the main and auxiliary clamping plates 3, and the pin body passes through the slot formed on the top of the main and auxiliary clamping plates 3, and then the main and auxiliary clamping plates 3 are tightly fitted so that the main boss 2-1 and the auxiliary boss 3-2 arranged in the middle part of the main and auxiliary clamping plates 3 are completely embedded in the main groove 2-2 and the auxiliary groove 3-1 correspondingly arranged on the main and auxiliary clamping plates 3, and finally the connecting key 9 is passed through the through holes 8 on the corresponding end faces of the main boss 2-1 and the auxiliary boss 3-2 in the main and auxiliary clamping plates 3 in turn, so that the positioning wire clamp can position and clamp the contact wire 1.

[0043] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A key-embedded positioning wire clamp, comprising a main clamping plate (2), a secondary clamping plate (3), a positioning pin (4) and a connecting key (9), characterized in that: The main plate (2) is provided with a main boss (2-1) and a main groove (2-2) on its inner side, and the auxiliary plate (3) is provided with an auxiliary boss (3-2) and an auxiliary groove (3-1) on its inner side. The main boss (2-1) is embedded in the auxiliary groove (3-1), and the auxiliary boss (3-2) is embedded in the main groove (2-2), so that the main boss (2-1) and the auxiliary boss (3-2) are arranged opposite to each other. Through holes (8) that are connected to each other are provided on the opposite end surfaces of the main boss (2-1) and the auxiliary boss (3-2). The main splint (2) and the auxiliary splint (3) are symmetrically provided with wire clamping protrusions (5) on the inner lower parts. When the connecting key (9) passes through the through holes (8) on the main plate (2) and the auxiliary plate (3), the positioning pin (4) between the main plate (2) and the auxiliary plate (3) is axially fixed, and the wire clamp protrusion (5) is clamped and fixed to the contact wire (1).

2. The keyed positioning wire clamp according to claim 1, characterized in that: The connecting key (9) is cylindrical, and the through holes (8) on the end surfaces opposite to the main boss (2-1) and the auxiliary boss (3-2) are coaxially arranged.

3. The keyed positioning wire clamp according to claim 2, characterized in that: The connecting key (9) passes through corresponding through holes (8) on the main boss (2-1) and the auxiliary boss (3-2) in sequence, tightly and fixedly connecting the main plate (2) and the auxiliary plate (3), and the connecting key (9) and the through hole (8) form an interference fit.

4. The keyed positioning wire clamp according to claim 1, characterized in that: The main boss (2-1) and the auxiliary boss (3-2) have two through holes (8) on the end surfaces opposite to each other, which correspond to each other one by one and are connected to each other.

5. The keyed positioning wire clamp according to claim 1, characterized in that: Semicircular slots (6) are symmetrically arranged at the middle of the top ends of the main plate (2) and the auxiliary plate (3), and rectangular through holes (7) are symmetrically opened on the plate bodies of the main plate (2) and the auxiliary plate (3) below the two semicircular slots (6). The positioning pin (4) comprises a first annular boss at the end and a pin body, the radius of the first annular boss is greater than the radius of the semicircular slot (6), and the length of the first annular boss is not greater than the height of the rectangular through hole (7) in a direction perpendicular to the horizontal direction; The radius of the pin body is equal to the radius of the semicircular slot hole (6); the first annular boss is located in the rectangular through hole (7); and the pin body is located in a groove formed by the two semicircular slot holes (6).

6. The keyed positioning wire clamp according to claim 1, characterized in that: A main boss (2-1) and a secondary groove (3-1) are respectively provided on the inner sides of the main plate (2) and the secondary plate (3) between the rectangular through hole (7) and the wire clamp protrusion (5); the height of the main boss (2-1) in the horizontal direction is equal to the groove depth of the secondary groove (3-1) and can be completely embedded in the secondary groove (3-1); the groove depth of the secondary groove (3-1) is less than the wall thickness of the main body of the secondary plate (3) at that position; and the length of the main boss (2-1) is less than the longitudinal length of the orthographic projection of the main plate (2) in the horizontal plane; A main groove (2-2) and a secondary boss (3-2) are respectively provided on the inner sides of the main plate (2) and the secondary plate (3) between the rectangular through hole (7) and the wire clamp protrusion (5); the height of the secondary boss (3-2) is equal to the groove depth of the main groove (2-2) and can be completely embedded in the main groove (2-2); the groove depth of the main groove (2-2) is equal to the groove depth of the secondary groove (3-1); and the sum of the length of the secondary boss (3-2) and the length of the main boss (2-1) is not greater than the longitudinal length of the orthographic projection of the main plate (2) in the horizontal plane.

7. The keyed positioning wire clamp according to claim 6, characterized in that: The length of the secondary boss (3-2) is equal to the length of the primary boss (2-1), and the sum of the length of the secondary boss (3-2) is also equal to the longitudinal length of the orthographic projection of the main splint (2) in the horizontal plane.

8. The keyed positioning wire clamp according to claim 1, characterized in that: The cross section of the end of the wire clamp protrusion (5) gradually shrinks inwards along a horizontal direction perpendicular to the inner side wall of the main clamp plate (2).

9. The keyed positioning wire clamp according to claim 8, characterized in that: The cross section of the end of the wire clamp protrusion (5) is triangular.

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