Bolt-free casting molding positioning wire clamp

Abstract

The utility model discloses a bolt-free casting molding positioning wire clamp. The positioning wire clamp is composed of a main clamping plate and an auxiliary clamping plate which are completely the same, the main clamping plate and the auxiliary clamping plate each comprise a body, the whole body is of an L-shaped structure, the middle of the body extends upwards to form a boss, the inner side of the boss is in an arc shape, and the bottom of the boss is provided with an arc protruding edge. The inner side of the lower part of one side of the long edge of the L-shaped structure is provided with a tooth-shaped angle for clamping a contact line, and the upper part is provided with a limiting table along the line direction; a limiting groove with a downward opening is formed in one side of the short edge of the L-shaped structure in the line direction, and the limiting groove and the limiting table are oppositely arranged in a staggered mode. The main clamping plate and the auxiliary clamping plate are oppositely arranged, the limiting tables are clamped into the limiting grooves in the opposite sides, the front end faces and the rear end faces of bodies of the main clamping plate and the auxiliary clamping plate are flush by pushing the main clamping plate and the auxiliary clamping plate, the contact line is clamped through the tooth-shaped angles, meanwhile, an approximate circular hole is defined by the inner side of the boss, and an annular boss is defined by the arc protruding edges. The utility model aims to overcome the defects in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of catenary of electrified railways, and particularly relates to a boltless cast positioning clamp. Background Art

[0002] The positioning clamp is one of the key components in the flexible catenary system of electrified railways and is widely used in the wrist arm positioning device to be installed on the positioner for connecting and fixing the contact wire so that the pull-out value of the contact wire relative to the track center is limited within the design range.

[0003] The closest prior art to the utility model is a boltless contact wire positioning clamp (CN 110588446 B), which is composed of a left half positioning clamp and a right half positioning clamp with the same dismountable structure and is inserted together with the vertical axis as the symmetry axis through a positioning clamping device and a loosening prevention device. This positioning clamp is only applicable to the positioner with a T-shaped head positioning pin and cannot be adapted to the positioner with an annular groove positioning pin. Summary of the Invention

[0004] The utility model provides a boltless cast positioning clamp to overcome the deficiencies of the prior art.

[0005] The technical solution adopted by the utility model is as follows: a boltless cast positioning clamp, the positioning clamp is composed of two completely identical main clamping plates and auxiliary clamping plates; both the main clamping plate and the auxiliary clamping plate include a body, the body is integrally in an "L" shape, and a boss extends upward in the middle thereof, the inner side of the boss is arc-shaped and the bottom has an arc convex rib; the inner side of the lower part of the long side of the "L" shape has a tooth profile angle for clamping the contact wire, and the upper part has a limiting platform along the line direction; the short side of the "L" shape has a limiting groove with an opening downward along the line direction, and the limiting groove and the limiting platform are arranged in relative dislocation;

[0006] The main clamping plate and the auxiliary clamping plate are arranged oppositely, and the limiting platform is clamped into the limiting groove on the opposite side, and by pushing the main clamping plate and the auxiliary clamping plate, the front and rear end faces of their bodies are made flush, so that the tooth profile angle clamps the contact wire. At the same time, an approximate circular hole is formed by enclosing the inner sides of the bosses, and an annular convex platform is formed by enclosing the arc convex ribs.

[0007] A limiting platform is arranged on the outer side of the limiting platform, a limiting plane is arranged on the outer side of the limiting groove, and anti-slip teeth are oppositely arranged on the limiting platform and the limiting plane.

[0008] The inner end of the outer side wall of the limiting platform inclines outward, the inner end of the inner side wall of the limiting groove inclines outward, and their inclination angles are the same.

[0009] The lower end of the outer side wall of the limiting platform inclines inward, the upper end of the inner side wall of the limiting groove inclines outward, and their inclination angles are the same.

[0010] Both ends of the inner side of the boss respectively have a first plane and a second plane. A clamping groove is arranged along the line direction below the first plane, and a clamping platform is arranged along the line direction below the second plane, and the clamping platform is clamped into the clamping groove on the opposite side.

[0011] The top wall of the clamping groove inclines downward, and the upper end face of the clamping platform inclines upward, and their inclination angles are the same.

[0012] Both the main clamping plate and the auxiliary clamping plate are formed by copper alloy casting.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model is applicable to the use of a locator for a ring groove locating pin. The main and auxiliary clamping plates have the same structure and are formed by copper alloy casting. They have fewer parts, low cost, are conducive to mass production, and require no maintenance after installation.

[0015] 2. The present utility model effectively prevents the main clamping plate and the auxiliary clamping plate from retreating and separating through the anti-slip teeth.

[0016] 3. The upper ends of the main and auxiliary clamping plates of the present utility model are provided with a buckle anti-loosening structure, which effectively avoids that when a vertical line pulling force is applied to the locator pin, the positioning wire clamp deforms in the vertical line direction, causing the separation of the first plane and the second plane and the locator pin to disengage from the positioning wire clamp. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is an exploded structural diagram of the present utility model;

[0019] Figure 3 、 4 is a schematic structural diagram of the body of the present utility model;

[0020] Figure 5 is a schematic partial structural sectional view of the present utility model. Detailed Description of the Preferred Embodiment

[0021] The following combines the attached Figures 1-5 The specific implementation manners are used to describe the present utility model in detail.

[0022] A boltless casting positioning line clamp, which is composed of two identical main clamping plates 1 and auxiliary clamping plates 2; both the main clamping plate 1 and the auxiliary clamping plate 2 include a body 3, the body 3 is integrally in an "L" - shaped structure, and a boss 3 - 1 extends upward in the middle thereof. The inner side of the boss 3 - 1 is arc - shaped and the bottom has an arc convex rib 3 - 2; on the inner side of the lower part of the long side of the "L" - shaped structure, there is a tooth - shaped angle 3 - 6 for clamping the contact wire 4, and on the upper part along the line direction, there is a limiting platform 3 - 3; on the short side of the "L" - shaped structure along the line direction, there is a limiting groove 3 - 4 with an opening downward, and the limiting groove 3 - 4 and the limiting platform 3 - 3 are arranged in relative dislocation.

[0023] The main clamping plate 1 and the auxiliary clamping plate 2 are arranged oppositely, and the limiting platform 3 - 3 is clamped into the limiting groove 3 - 4 on the opposite side. By pushing the main clamping plate 1 and the auxiliary clamping plate 2, the front and rear end faces of their bodies 3 are made flush, so that the tooth - shaped angle 3 - 6 clamps the contact wire 4. At the same time, an approximate circular hole 5 is formed by enclosing the inner sides of the bosses 3 - 1, and an annular convex platform 6 is formed by enclosing the arc convex ribs 3 - 2.

[0024] Specific installation method: Place the tooth - shaped angle 3 - 7 of the main clamping plate 1 in cooperation with the contact wire 4. Place the lower end of the locator pin 7 below the inner side of the boss 3 - 1 on the main clamping plate 1 and make the annular groove at the lower end of the locator pin 7 be clamped on the arc convex rib 3 - 2. Then place the tooth - shaped angle 3 - 7 of the auxiliary clamping plate 2 in cooperation with the contact wire 4. Insert the limiting platform 3 - 3 into the limiting groove 3 - 4 on the opposite side. Push the main clamping plate 1 and the auxiliary clamping plate 2 to make the front and rear end faces of their bodies 3 flush, and the first plane 3 - 7 and the second plane 3 - 8 are in close contact. At the same time, an approximate circular hole 5 formed by enclosing the inner sides of the bosses 3 - 1 surrounds the cylindrical rod at the upper end of the locator pin 7, and the annular convex platform 6 formed by enclosing the arc convex ribs 3 - 2 is clamped into the annular groove at the lower end of the locator pin 7; through the mutual limitation between the binding surfaces of the limiting platforms 3 - 3 and the limiting grooves 3 - 4 in the middle of the main clamping plate 1 and the auxiliary clamping plate 2, the tooth - shaped angles 3 - 7 at the lower inner sides of the main clamping plate 1 and the auxiliary clamping plate 2 clamp the contact wire 4.

[0025] In one embodiment, in order to prevent the main clamping plate 1 and the auxiliary clamping plate 2 from retreating and separating, there is a limiting platform 3 - 12 on the outer side of the limiting platform 3 - 3, and a limiting plane 3 - 13 on the outer side of the limiting groove 3 - 4. Anti - slip teeth 3 - 5 are relatively arranged on the limiting platform 3 - 12 and the limiting plane 3 - 13.

[0026] In one embodiment, the inner end of the outer side wall of the limiting platform 3 - 3 inclines outward, the inner end of the inner side wall of the limiting groove 3 - 4 inclines outward, and their inclination angles are the same.

[0027] In one embodiment, the lower end of the outer side wall of the limiting platform 3 - 3 inclines inward, the upper end of the inner side wall of the limiting groove 3 - 4 inclines outward, and their inclination angles are the same.

[0028] In one embodiment, when the locator pin 7 applies a tensile force perpendicular to the line to the wire clamp, in order to prevent the deformation of the wire clamp in the direction perpendicular to the line, both ends of the inner side of the boss 3-1 are respectively provided with a first plane 3-7 and a second plane 3-8. A clamping groove 3-9 is provided along the line direction below the first plane 3-7, and a clamping platform 3-10 is provided along the line direction below the second plane 3-8. And the clamping platform 3-10 is clamped into the clamping groove 3-9 on the opposite side to ensure that the first plane 3-7 is in close contact with the second plane 3-8. Preferably, the top wall of the clamping groove 3-9 is inclined downward, the upper end surface of the clamping platform 3-10 is inclined upward, and the inclination angles of the two are the same.

[0029] In one embodiment, in order to reduce the weight, a weight-reducing groove 3-11 is provided circumferentially around the boss 3-1.

[0030] Both the main clamping plate 1 and the auxiliary clamping plate 2 are formed by casting with copper alloy. It is beneficial to mass production and cost reduction.

[0031] The above embodiments are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A boltless casting positioning wire clamp, characterized in that: The positioning wire clamp is composed of two identical main clamping plates (1) and auxiliary clamping plates (2); both the main clamping plate (1) and the auxiliary clamping plate (2) include a body (3), the body (3) is integrally in an "L" - shaped structure, and a boss (3 - 1) extends upward in the middle thereof. The inner side of the boss (3 - 1) is arc - shaped and the bottom has an arc convex rib (3 - 2); on the inner side of the lower part of the long side of the "L" - shaped structure, there is a tooth - shaped angle (3 - 6) for clamping the contact wire (4), and on the upper part along the line direction, there is a limit platform (3 - 3); on the short side of the "L" - shaped structure along the line direction, there is a limit groove (3 - 4) with an opening downward, and the limit groove (3 - 4) and the limit platform (3 - 3) are arranged in relative dislocation. The main clamping plate (1) and the auxiliary clamping plate (2) are arranged oppositely, and the limit platform (3 - 3) is clamped into the limit groove (3 - 4) on the opposite side. By pushing the main clamping plate (1) and the auxiliary clamping plate (2), the front and rear end faces of their bodies (3) are made flush, so that the tooth - shaped angle (3 - 6) clamps the contact wire (4). At the same time, an approximate circular hole (5) is formed by enclosing the inner sides of the bosses (3 - 1), and an annular convex platform (6) is formed by enclosing the arc convex ribs (3 - 2).

2. The boltless casting positioning wire clamp according to claim 1, wherein: On the outer side of the limit platform (3 - 3), there is a limit platform surface (3 - 12), and on the outer side of the limit groove (3 - 4), there is a limit plane (3 - 13). Anti - slip teeth (3 - 5) are relatively arranged on the limit platform surface (3 - 12) and the limit plane (3 - 13).

3. The boltless casting positioning wire clamp according to claim 2, characterized in that: The inner end of the outer side wall of the limit platform (3 - 3) inclines outward, and the inner end of the inner side wall of the limit groove (3 - 4) inclines outward, and their inclination angles are the same.

4. The boltless casting positioning wire clamp according to claim 3, wherein: The lower end of the outer side wall of the limit platform (3 - 3) inclines inward, and the upper end of the inner side wall of the limit groove (3 - 4) inclines outward, and their inclination angles are the same.

5. A boltless casting positioning wire clamp according to claim 1, characterized in that: At both ends of the inner side of the boss (3 - 1), there are a first plane (3 - 7) and a second plane (3 - 8) respectively. Along the line direction below the first plane (3 - 7), there is a clamping groove (3 - 9), and along the line direction below the second plane (3 - 8), there is a clamping platform (3 - 10), and the clamping platform (3 - 10) is clamped into the clamping groove (3 - 9) on the opposite side.

6. The boltless casting positioning wire clamp according to claim 5, characterized in that: The top wall of the clamping groove (3 - 9) inclines downward, and the upper end face of the clamping platform (3 - 10) inclines upward, and their inclination angles are the same.

7. A boltless casting positioning wire clamp according to claim 1 or 2 or 3 or 4 or 5, characterized in that: Both the main clamping plate (1) and the auxiliary clamping plate (2) are formed by copper alloy casting.

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