A pestle-type terminal anchoring clamp

Abstract

The present invention discloses a pestle-type terminal anchoring wire clamp, comprising a wire clamp body, wherein the upper part of the wire clamp body is a pestle head, and the lower part is a pestle column; the pestle head has a pestle head cavity, the lower part of the pestle head cavity is clamped with a locking pin, and the upper part of the pestle head cavity is clamped with a pestle rod; the pestle column is axially provided with a tapered hole, a tapered wedge sleeve is inserted in the tapered hole, and the inner wall of the tapered wedge sleeve has a first anti-slip tooth; the locking pin is in a W-shaped structure, and a limiting ring is fixed on its two inner arms, and the limiting ring is concentric with the tapered wedge sleeve, the inner diameter of the limiting ring is in an inverted cone, and the inner wall thereof has a second anti-slip tooth. This structure reduces the number of parts, removes fasteners, and facilitates on-site installation.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed railway contact network parts manufacturing, in particular to a pestle-shaped terminal anchoring wire clamp. Background Art

[0002] The terminal anchor wire clamp is one of the key load-bearing parts on the contact network. It connects the contact network and the load-bearing cable with the compensation device in series, and transmits the weight of the compensation device's weight to the contact wire and the load-bearing cable, so that the contact wire and the load-bearing cable are tightened, straightened and obtain the specified tension, providing a channel for the electric locomotive or EMU to smoothly take the current. There are many types of terminal anchor wire clamps, such as cone sleeve type, double ear wedge type, top wire type and forged integrated type. If there are quality problems or hidden dangers in the terminal anchor wire clamp device, it will cause the contact wire or load-bearing cable to fall off, the balance of the contact network will be destroyed, and large-scale damage to the contact network will be caused. This is the most serious accident in the contact network, and its recovery is generally slow, which is easy to cause large or serious traffic accidents, and has a great impact on normal railway transportation production and safety. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a pestle-type terminal anchoring clamp.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0005] A pestle-type terminal anchoring wire clamp comprises a wire clamp body, wherein the upper part of the wire clamp body is a pestle head and the lower part is a pestle column; a pestle head cavity is provided in the pestle head, a locking pin is clamped in the lower part of the pestle head cavity, and a pestle rod is clamped in the upper part of the pestle head cavity; a tapered hole is axially opened in the pestle column, a tapered wedge sleeve is inserted in the tapered hole, and the inner wall of the tapered wedge sleeve is provided with a first anti-slip tooth; the locking pin is in a W-shaped structure, and a limiting ring is fixed on its two inner arms, and the limiting ring is concentric with the tapered wedge sleeve, the inner diameter of the limiting ring is in an inverted cone, and the inner wall thereof is provided with a second anti-slip tooth.

[0006] Furthermore, the lower part of the pestle head cavity is a rectangular structure that passes through from front to back, and the upper part is an inverted conical structure that passes through upward and forward; the locking pin passes horizontally through and is inserted into the rectangular structure, and is fixed in the rectangular structure by the elastic force released by its two outer arms; the pestle rod is inserted from the front of the inverted conical structure through its inverted conical end, so that the pestle rod is connected to the inverted conical structure.

[0007] Furthermore, the conical wedge sleeve is evenly distributed with shrinkage seams in the axial direction.

[0008] Furthermore, the first anti-slip teeth and the second anti-slip teeth are both annular teeth.

[0009] Furthermore, the tooth shapes of the annular teeth are all right triangles.

[0010] Furthermore, the taper of the tapered hole and the tapered wedge sleeve is 1:10.

[0011] Beneficial effects of the present invention: Compared with traditional terminal anchoring wire clamps, the structure of the present invention reduces the number of parts and eliminates fasteners, which facilitates on-site installation while greatly improving the safety and reliability of the anchor installation and segmented installation of the high-speed railway contact network, thereby improving the safety and reliability of the entire electrified contact network. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural stereogram of the present invention;

[0013] Figure 2 It is a structural side view of the present invention;

[0014] Figure 3 It is a structural schematic diagram of the wire clamp body of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the present invention after the wire clamp body is removed;

[0016] Figure 5 It is a structural schematic diagram of the locking pin in the present invention;

[0017] Figure 6 It is a schematic cross-sectional structural diagram of the tapered wedge sleeve of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0019] See also Figure 1 to Figure 6 The present invention provides a pestle-type terminal anchoring wire clamp, comprising a wire clamp body, wherein the upper part of the wire clamp body is a pestle head 1, and the lower part is a pestle column 2; the pestle head 1 has a pestle head cavity 3, the lower part of the pestle head cavity 3 is clamped with a locking pin 4, and the upper part of the pestle head cavity 3 is clamped with a pestle rod 5; the pestle column 2 is axially provided with a tapered hole 6, the tapered hole 6 is inserted with a tapered wedge sleeve 7, and the inner wall of the tapered wedge sleeve 7 is provided with a first anti-slip tooth 7-1; the locking pin 4 is a W-shaped structure, and a limiting ring 8 is fixed on its two inner arms 4-1, and the limiting ring 8 is concentric with the tapered wedge sleeve 7, the inner diameter of the limiting ring 8 is an inverted cone, and the inner wall thereof is provided with a second anti-slip tooth 8-1.

[0020] In one embodiment, the lower portion of the pestle head cavity 3 is a rectangular structure 3-1 that passes through from front to back, and the upper portion is an inverted conical structure 3-2 that passes through upward and forward; the locking pin 4 is horizontally inserted into the rectangular structure 3-1, and is fixed in the rectangular structure 3-1 by the elastic force released by its two outer arms 4-2; the pestle rod 5 is inserted from the front of the inverted conical structure 3-2 through its inverted conical end 5-1, so that the pestle rod 5 is connected to the inverted conical structure 3-2.

[0021] Furthermore, the conical wedge sleeve 7 is evenly distributed with shrinkage seams 7-2 in the axial direction;

[0022] Furthermore, the first anti-slip teeth 7-1 and the second anti-slip teeth 8-1 are both annular teeth; the tooth shapes of the annular teeth are both right-angled triangles, and the minimum inner diameters of the first anti-slip teeth 7-1 and the second anti-slip teeth 8-1 are 0.3 mm smaller than the outer diameter of the load-bearing cable or contact wire 9.

[0023] Preferably, the taper of the tapered hole 6 and the tapered wedge sleeve 7 are both 1:10.

[0024] Installation and use method, taking the contact line as an example:

[0025] First, insert the end of the contact wire 9 from the lower end of the tapered hole 6, then put the tapered wedge sleeve 7 on the end of the contact wire 9, and insert the tapered wedge sleeve 7 into the tapered hole 6; pull the contact wire 9 outward as much as possible, so that the tapered wedge sleeve 7 is clamped in the tapered hole 6 through elastic radial contraction, and then the anti-slip teeth 7-1 on the inner wall of the tapered wedge sleeve 7 clamp the contact wire 9; then insert the locking pin 4 horizontally through the rectangular structure 3-1, and fix it in the rectangular structure through the elastic force released by its two outer arms 4-2. In 3-1, the limiting ring 8 is concentrically sleeved on the end of the contact line 9. On the one hand, the inverted conical inner diameter of the limiting ring 8 prevents the contact line 9 from retreating and withdrawing the conical wedge sleeve 7 along the line direction. On the other hand, the locking pin 4 limits the displacement of the conical wedge sleeve 7 to prevent the conical wedge sleeve 7 from withdrawing along the line direction; the pestle rod 5 is inserted from the front of the inverted conical structure 3-2 through its inverted conical end 5-1, so that the pestle rod 5 is connected to the inverted conical structure 3-2; finally, the pestle rod 5 is connected to other parts.

[0026] The present invention has a simple structure and is easy to install. It does not have bolts or pin fasteners, which reduces the potential safety hazards caused by fasteners. At the same time, the reduction in the number of parts facilitates the on-site installation of the anchoring clamp, reduces costs, and greatly improves the safety and reliability of anchor installation and disconnection connection, thereby improving the safety performance of the entire electrified contact network.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0028] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A pestle-type terminal anchoring clamp, characterized in that: The invention comprises a wire clamp body, wherein the upper part of the wire clamp body is a pestle head (1), and the lower part is a pestle column (2); the pestle head (1) has a pestle head cavity (3), the lower part of the pestle head cavity (3) is clamped with a locking pin (4), and the upper part of the pestle head cavity (3) is clamped with a pestle rod (5); the pestle column (2) is axially provided with a tapered hole (6), the tapered hole (6) is inserted with a tapered wedge sleeve (7), and the inner wall of the tapered wedge sleeve (7) is provided with a first anti-slip tooth (7-1); the locking pin (4) is in a W-shaped structure, and a limiting ring (8) is fixed on its two inner arms (4-1), and the limiting ring (8) is concentric with the tapered wedge sleeve (7), the inner diameter of the limiting ring (8) is in an inverted cone shape, and the inner wall thereof is provided with a second anti-slip tooth (8-1); The lower part of the pestle head cavity (3) is a rectangular structure (3-1) that penetrates from front to back, and the upper part is an inverted cone structure (3-2) that penetrates upward and forward; the locking pin (4) penetrates horizontally and is inserted into the rectangular structure (3-1), and is fixed in the rectangular structure (3-1) by the elastic force released by its two outer arms (4-2); the pestle rod (5) is inserted from the front of the inverted cone structure (3-2) through its inverted cone end (5-1), so that the pestle rod (5) is connected to the inverted cone structure (3-2).

2. The pestle-type terminal anchoring clamp according to claim 1, characterized in that: The conical wedge sleeve (7) is evenly distributed with contraction seams (7-2) in the axial direction.

3. The pestle-type terminal anchoring clamp according to claim 2, characterized in that: The first anti-slip teeth (7-1) and the second anti-slip teeth (8-1) are both annular teeth.

4. The pestle-type terminal anchoring clamp according to claim 3, characterized in that: The tooth shapes of the annular teeth are all right triangles.

5. The pestle-type terminal anchoring clamp according to claim 4, characterized in that: The taper of the tapered hole (6) and the tapered wedge sleeve (7) is 1:10.

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