Occlusion anti-falling type limiting and positioning device

Abstract

The invention discloses an occlusion anti-falling type limiting and positioning device which comprises a positioning support and a positioner, one end of the positioning support is provided with an occlusion part, the occlusion part is connected with a positioning pipe, the other end of the positioning support is provided with a limiting part, and the limiting part is movably connected with the positioner; the limiting part comprises a fixing block, a first protruding block arranged on the side edge of the fixing block and a hook arranged on the bottom edge of the fixing block, and an opening of the hook is formed in the position, away from the first protruding block, of the lower portion of the side edge of the fixing block. The positioner comprises a connecting ring and a second protruding block, the connecting ring is horizontally arranged at the position below the side edge of the second protruding block, a connecting pipe is arranged on the other side edge of the second protruding block, and a wire clamp is arranged at the other end of the connecting pipe. The meshing anti-falling type limiting and positioning device has a limiting function, the stability of a contact network is improved when a train runs, the number of bolts is reduced through the meshing structure, the probability of accidents caused by bolt looseness can be effectively reduced, the connecting ring cannot fall off along the outer edge of the hook, and the running safety of the train is further guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of electrified railway and urban rail transit contact network, and in particular to a bite-proof anti-slip limit positioning device. Background Art

[0002] When the train is running, the pantograph and the catenary are generally suspended by double bearing and double guide or single bearing and single guide to reduce the damage of the contact wire, so that the contact wire is always within the working range of the pantograph slide. The positioning device is used to pull the contact wire to the support side through the positioning tube and the positioner. The positioning device consists of the positioning tube, the positioner, the wire clamp and the connecting parts.

[0003] In the prior art, a connecting ring is provided at the bottom of the positioning support in the contact network, and one end of the positioner is connected to the connecting ring through a hook. During the operation of the train, the positioner moves a lot in the up and down directions, and the hook is very easy to fall off along the outer edge of the connecting ring, thus causing serious traffic accidents. In addition, the positioning support is slidably connected to the positioning tube by a clamp fixed by bolts. The violent movement of the positioner is very easy to cause thread failure problems such as shear force twisting and breaking of the thread, breaking of the stress concentration part after use, fatigue fracture and slipping of the thread. Therefore, there is a lack of a positioning device that prevents falling off and has a limiting function. Summary of the invention

[0004] The purpose of the present invention is to provide a bite-type anti-slip limit positioning device with a limit function, which improves the stability of the contact network when the train is running. The bite structure reduces the use of bolts and can effectively reduce the probability of accidents caused by loose bolts. The connecting ring will not fall off along the outer edge of the hook, further ensuring the safety of train operation.

[0005] To achieve the above-mentioned purpose, the present invention provides a bite-type anti-dropping limiting positioning device, comprising a positioning support and a positioner, wherein one end of the positioning support is provided with a bite portion, the bite portion is connected to a positioning tube, and the other end of the positioning support is provided with a limit portion, the limit portion is movably connected to the positioner; The limiting portion includes a fixed block, a first protruding block arranged on the side of the fixed block, and a hook arranged on the bottom of the fixed block, and the opening of the hook is arranged at a position below the side of the fixed block away from the first protruding block; The positioner includes a connecting ring and a second protruding block, wherein the connecting ring is horizontally arranged below the side of the second protruding block, a connecting tube is arranged on the other side of the second protruding block, and a wire clamp is arranged on the other end of the connecting tube.

[0006] Preferably, the outer diameter of the connecting ring is equal to the height of the second protruding block.

[0007] Preferably, the tangent plane on the right side of the connecting ring along the vertical direction of the outer ring does not exceed the side plane on the right side of the first protruding block along the vertical direction.

[0008] Preferably, notches are symmetrically arranged on the upper and lower surfaces of the connecting ring, and the depth of the notches is one third of the width of the connecting ring.

[0009] Preferably, the opening distance of the hook is smaller than the ring width of the connecting ring, and larger than one third of the ring width of the connecting ring.

[0010] Preferably, the inner diameter of the connecting ring is larger than the ring width of the hook.

[0011] Preferably, the connecting pipe is located above the side of the second raised block, and a reinforcing rib is provided below the side of the second raised block.

[0012] Preferably, the engaging portion comprises a first clamp and a second clamp which are symmetrically arranged, the first clamp and the second clamp are both semicircular clamps, one end of each of the first clamp and the second clamp is provided with a plurality of through holes, the other end of the first clamp is provided with a clamp block, and the clamp block is an L-shaped structure; The other end of the second clamp is provided with a clamping hole with the same width as the clamping block, the bending part of the clamping block is fitted with the edge of the clamping hole, a clamping slot is provided below the clamping hole, the clamping block passes through the clamping hole and abuts against the clamping slot, and a hook is provided at the penetrating end of the clamping block.

[0013] Preferably, the engaging portion and the limiting portion are connected via a weight-reducing groove that is integrally forged.

[0014] Preferably, the surface of the weight-reducing groove is provided with openings.

[0015] Therefore, the present invention adopts the above-mentioned bite-proof anti-slip limit positioning device, and the beneficial effects are as follows: (1) Compared with the prior art, in which the positioning tube is fixed by two clamps fastened by bolts at both ends, the present invention uses a first clamp and a second clamp that are fastened by bolts at one end and interlocked at the other end to avoid the problem of thread loosening caused by the violent movement of the positioner during long-term train operation, effectively reducing the probability of accidents caused by loose bolts and avoiding serious traffic accidents.

[0016] (2) Compared with the prior art, in which a connecting ring is provided at the bottom of the positioning support and one end of the positioner is clamped with the connecting ring through a hook, the present invention adopts a method in which a hook is provided at the bottom of the positioning support and a connecting ring is provided at one end of the positioner, and the movement of the positioner in the up and down directions is limited by the opposite clamping method. The ring width of the connecting ring is greater than the opening distance of the hook, and the opening of the hook is always far away from the notch position of the connecting ring. After the connecting ring enters the hook, it rotates so that the first protruding block is adjacent to the second protruding block. The connecting ring cannot fall off along the outer edge of the hook, thereby further ensuring the safety of train operation.

[0017] (3) The first protruding block provided in the present invention limits the rotation angle of the positioner. The positioning device based on the limiting function avoids the positioner from moving violently in the up and down directions when the train is running, thereby preventing the positioner from moving a large amount, thereby ensuring the stability of the contact network when the train is running.

[0018] (3) The present invention adopts a forged integrally formed positioning support, and the outer structure of the engaging portion, the weight-reducing groove and the limiting portion is easy to forge. The integrally formed forged product has better mechanical strength, lighter weight, and greatly improved stability, further ensuring the safety of train operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a bite-type anti-slip limit positioning device of the present invention; Figure 2 It is a structural schematic diagram from another perspective of an embodiment of a bite-type anti-slipping limiting positioning device of the present invention; Figure 3 This is a front view of an embodiment of a bite-proof position limiting and positioning device of the present invention. Figure 4 It is a structural schematic diagram of the occlusal portion of an embodiment of an occlusal anti-slipping limiting positioning device of the present invention; Figure 5 It is a structural schematic diagram of a clamping hole of an embodiment of a bite-type anti-slipping limiting positioning device of the present invention; Figure 6 It is a structural schematic diagram of a first clamp of an embodiment of a bite-type anti-slip limiting and positioning device of the present invention.

[0020] Reference numerals 1. Positioning support; 2. Positioner; 3. Engaging part; 4. Limiting part; 5. Fixing block; 6. First protruding block; 7. Hook; 8. Opening; 9. Connecting ring; 10. Second protruding block; 11. Connecting pipe; 12. Wire clamp; 13. Notch; 14. Reinforcing rib; 15. First clamp; 16. Second clamp; 17. Through hole; 18. Block; 19. Clamp hole; 20. Clamp slot; 21. Weight reduction slot; 22. Opening; 23. Hook. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Embodiment 1 A bite-type anti-dropout limit positioning device comprises a positioning support 1 and a positioner 2. A bite portion 3 is provided at one end of the positioning support 1, and a positioning tube (not marked in the figure) is connected to the bite portion 3. A limit portion 4 is provided at the other end of the positioning support 1, and the limit portion 4 is movably connected to the positioner 2. The bite portion 3 and the limit portion 4 are connected through a forged integrally formed weight reduction groove 21. An opening 22 is provided on the surface of the weight reduction groove 21. The opening 22 is used to connect an electrical connection line. The overall mechanical strength is high, the weight is light, and the connection structure is reasonably designed.

[0024] Specifically, the bite portion 3 includes a first clamp 15 and a second clamp 16 that are symmetrically arranged. The first clamp 15 and the second clamp 16 are both semicircular clamps, and the positioning tube is located in the ring formed between the first clamp 15 and the second clamp 16. One end of the first clamp 15 and the second clamp 16 are both provided with a plurality of through holes 17. In addition, the other end of the first clamp 15 is provided with a clamp block 18 with an L-shaped cross section, and the other end of the second clamp 16 is provided with a clamp hole 19 with the same width as the clamp block 18. The clamp hole 19 is a rectangular structure, and a clamp groove 20 is provided below the clamp hole 19.

[0025] One end of the clamping block 18 is integrally formed with the first clamping hoop 15. The other end of the clamping block 18 passes through the clamping hole 19 and abuts against the clamping slot 20. The through end of the clamping block 18 is provided with a hook 23, which enters the clamping slot 20 and abuts against the clamping slot 20. The bending part of the clamping block 18 fits with the edge of the clamping hole 19. The bottom ends of the first clamping hoop 15 and the second clamping hoop 16 are formed to engage with each other. The through hole 17 at the top of the first clamping hoop 15 and the second clamping hoop 16 can be penetrated by a bolt assembly. After the bolt assembly is tightened, the engaging portion 3 can be firmly connected with the positioning tube.

[0026] Specifically, the limiting part 4 includes a fixed block 5, a first protruding block 6 arranged on the side of the fixed block 5, and a hook 7 arranged on the bottom of the fixed block 5, and the opening 8 of the hook 7 is arranged at a position below the side of the fixed block 5 away from the first protruding block 6. The positioner 2 includes a connecting ring 9 and a second protruding block 10, the connecting ring 9 is horizontally arranged at a position below the side of the second protruding block 10, the connecting pipe 11 is located at a position above the side of the second protruding block 10, and a reinforcing rib 14 is arranged at a position below the side of the second protruding block 10, and the reinforcing rib 14 ensures the overall mechanical strength of the positioner 2. A connecting pipe 11 is arranged on the other side of the second protruding block 10, and a wire clamp 12 is arranged at the other end of the connecting pipe 11, and the wire clamp 12 is used to connect the contact network and withstand the horizontal force of the contact line.

[0027] The outer diameter of the weight-reducing groove 21 is equal to the height of the second raised block 10, and the tangent plane on the right side of the connecting ring 9 along the vertical direction of the outer ring does not exceed the side plane on the right side of the first raised block 6 along the vertical direction, ensuring that when the train is running, even if the connecting tube 11 tends to rotate upward, the connecting tube 11 will never exceed the horizontal line of the bottom edge of the second raised block 10.

[0028] The inner diameter of the connecting ring 9 is larger than the ring width of the hook 7. The upper and lower surfaces of the connecting ring 9 are symmetrically provided with notches 13, and the depth of the notches 13 is one third of the ring width of the connecting ring 9. The opening 8 of the hook 7 is smaller than the ring width of the connecting ring 9, and larger than the connecting ring 9 of one third of the ring width. In actual use, the opening 8 of the hook 7 is always away from the notch 13 of the connecting ring 9. After the connecting ring 9 enters the hook 7, it rotates a certain angle so that the first protruding block 6 is adjacent to the second protruding block 10, and the connecting ring 9 cannot fall off along the outer edge of the hook 7.

[0029] The installation method of the device specifically comprises the following steps: S1. Produce positioning support 1 and positioner 2 according to technical standards: The positioning support 1 is an integrally formed component of a first clamp 15 with a through hole 17, a clamping block 18 and a hook 23, a second clamp 16 with a through hole 17 and a clamping hole 19, a clamping groove 20 and a weight reduction groove 21 with an opening 22, a fixing block 5, a first protruding block 6 and a hook 7, and the positioner 2 is an integrally formed component of a connecting ring 9 with a notch 13, a second protruding block 10, a connecting tube 11, a wire clamp 12 and a reinforcing rib 14.

[0030] S2. Connect the positioning support 1 and the positioning tube: Place the first clamp 15 and the second clamp 16 on the outer ring of the positioning tube, and pass the clamp block 18 through the clamp hole 19, so that the hook 23 abuts against the clamp groove 20, and use the bolt assembly to pass through the through holes 17 at the top of the first clamp 15 and the second clamp 16 in turn and tighten them.

[0031] S3. Connect positioning support 1 and positioner 2: Pass the connecting tube 11 with the connecting ring 9 through the opening 8 along the direction of the notch 13, and rotate the connecting tube 11 around the hook 7 so that the connecting ring 9 is sleeved in the hook 7, the notch 13 is away from the opening 8, and the first protruding block 6 and the second protruding block 10 are in contact with each other.

[0032] S4, the wire clamp 12 is connected to the contact wire, the value is pulled out for inspection and adjustment, and the installation is completed.

[0033] Therefore, the present invention adopts the above-mentioned bite-type anti-slip limit positioning device, which has a limit function, improves the stability of the contact network when the train is running, and the bite structure reduces the use of bolts, which can effectively reduce the probability of accidents caused by loose bolts. The connecting ring will not fall off along the outer edge of the hook, further ensuring the safety of the train operation.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A bite-type anti-slip limit positioning device, characterized in that: It comprises a positioning support and a positioner, wherein one end of the positioning support is provided with a bite portion, the bite portion is connected with a positioning tube, and the other end of the positioning support is provided with a limit portion, the limit portion is movably connected with the positioner; The limiting portion includes a fixed block, a first protruding block arranged on the side of the fixed block, and a hook arranged on the bottom of the fixed block, and the opening of the hook is arranged at a position below the side of the fixed block away from the first protruding block; The positioner includes a connecting ring and a second protruding block, wherein the connecting ring is horizontally arranged below the side of the second protruding block, a connecting tube is arranged on the other side of the second protruding block, and a wire clamp is arranged on the other end of the connecting tube.

2. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The outer diameter of the connecting ring is equal to the height of the second protruding block.

3. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The tangent plane on the right side of the connecting ring along the vertical direction of the outer ring does not exceed the side plane on the right side of the first protruding block along the vertical direction.

4. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The upper and lower surfaces of the connecting ring are symmetrically provided with notches, and the depth of the notches is one third of the width of the connecting ring.

5. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The opening distance of the hook is smaller than the ring width of the connecting ring, and larger than one third of the ring width of the connecting ring.

6. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The inner diameter of the connecting ring is greater than the ring width of the hook.

7. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The connecting pipe is located above the side of the second protruding block, and a reinforcing rib is provided below the side of the second protruding block.

8. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The engaging portion comprises a first clamp and a second clamp which are symmetrically arranged, wherein the first clamp and the second clamp are both semicircular clamps, and a plurality of through holes are arranged at one end of the first clamp and the second clamp, and a clamp block is arranged at the other end of the first clamp, and the clamp block is an L-shaped structure; The other end of the second clamp is provided with a clamping hole with the same width as the clamping block, the bending part of the clamping block is fitted with the edge of the clamping hole, a clamping slot is provided below the clamping hole, the clamping block passes through the clamping hole and abuts against the clamping slot, and a hook is provided at the penetrating end of the clamping block.

9. The bite-type anti-slip limit positioning device according to claim 1, characterized in that: The engaging portion and the limiting portion are connected via a weight-reducing groove that is integrally forged.

10. The bite-type anti-slip limit positioning device according to claim 9, characterized in that: The surface of the weight-reducing groove is provided with openings.

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