Riveting fastener with anti-falling structure for laying railway track

Abstract

The utility model relates to a pull rivet fastener with an anti-drop structure for laying a railway track, which comprises a track skeleton steel rail, a connector, a screw and a circular ring, the track skeleton steel rail and the connector are internally provided with insertion holes, the end part of the screw is provided with a hexagonal end, the outer surface of the screw is coaxially provided with a plurality of arc-shaped latches in an array, and the arc-shaped latches are connected with the connector. The outer surface of the screw is in threaded connection with a nut, a hexagonal limiting sleeve is installed on the outer surface of the track panel steel rail, and the hexagonal limiting sleeve is matched with the nut. Through positioning matching of the self-locking mechanism and the arc-shaped clamping teeth, the screw rod can only rotate in a single direction, the self-locking purpose can be achieved when the screw rod stops rotating, the situation that a rail is loosened in the using process is avoided, and due to the fact that the self-locking mechanism is arranged on the outer side of the connecting joint, an operator can operate the connecting joint conveniently, and the working efficiency is improved. Therefore, the purpose of being convenient to disassemble can be achieved, the rail can be conveniently maintained and replaced in the later period, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting fasteners, in particular to a riveting fastener for railway track laying with an anti-dropping structure. Background Art

[0002] A railway refers to a transportation system composed of tracks, rails and related facilities for the operation and transportation of trains. Railway transportation is a major land transportation mode with high carrying capacity and relatively stable transportation conditions.

[0003] Chinese Patent with the publication number of CN220301080U discloses a riveting fastener for railway track laying with an anti-dropping structure. Under the action of a fastening assembly, a plug rod and a threaded rod are inserted into the inner part of a track panel rail through a ratchet groove. During the insertion process of the plug rod, a limiting push rod is extruded by the inner wall of a jack and flips into an inner buckling groove. Until the limiting push rod passes through the inner part of the track panel rail, the limiting push rod loses the extrusion on the jack and flips upward to reset. At this time, blocked by the limiting push rod, the plug rod cannot retract. Then, the fixing plate is rotated and rotated into the ratchet groove. At this time, the ratchet teeth are extruded by the ratchet groove and rotate and are buried in a burying groove. As the fixing plate and the limiting push rod get closer and closer, the track panel rail and the connecting joint can be clamped and fixed. Then, the ratchet teeth turn out of the burying groove and engage with the ratchet groove, thereby restricting the rotation of the fixing plate and avoiding loosening.

[0004] Although the above patent has good self-locking property and can avoid loosening, after the plug rod is installed, it is difficult to remove it, which causes great obstacles to the later maintenance and replacement of the rails and is rather inconvenient. Content of the Utility Model

[0005] The purpose of the utility model is to provide a riveting fastener for railway track laying with an anti-dropping structure, which has good self-locking property and is convenient to remove.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows.

[0007] A riveting fastener for railway track laying with an anti-dropping structure includes a track panel rail, a connecting joint, a screw rod and a ring. Jacks are opened inside both the track panel rail and the connecting joint. A hexagonal end is installed at the end of the screw rod. A plurality of arc-shaped teeth are coaxially arranged on the outer surface of the screw rod in an array. A nut is threadedly connected to the outer surface of the screw rod. A hexagonal limiting sleeve is installed on the outer surface of the track panel rail and is adapted to the nut. A self-locking mechanism for positioning and cooperating with the arc-shaped teeth is arranged on the outer surface of the connecting joint.

[0008] It can be seen that by clamping the nut in the hexagonal limit sleeve, then inserting the screw rod into the jack and tightening the nut on the outer surface of the screw rod, the hexagonal limit sleeve plays a limiting role on the nut, so that the nut can be prevented from reversing. Through the positioning cooperation of the self-locking mechanism and the arc-shaped teeth, the screw rod can only rotate in one direction, and the purpose of self-locking can be achieved when the rotation of the screw rod stops, so that the screw rod can be prevented from reversing, and the loosening of the rail during use can be avoided. And because the self-locking mechanism is arranged on the outside of the connecting joint, it is convenient for the operator to operate it to disengage it from the positioning cooperation with the arc-shaped teeth, so as to achieve the purpose of easy removal, which is convenient for the later maintenance and replacement of the rail and is easy to use.

[0009] Furthermore, the self-locking mechanism includes a plug board with an arc-shaped structure at the end arranged on the outside of the connecting joint. A fixed sleeve is installed on the outer surface of the plug board. A sliding rod is inserted into the fixed sleeve. One end of the sliding rod is installed with a fixed block, and the fixed block is connected to the connecting joint. The other end of the sliding rod is installed with a top plate. A spring is sleeved on the outer surface of the sliding rod, and the two ends of the spring are respectively abutted against the fixed sleeve and the fixed block.

[0010] Through the elastic force of the spring, a continuous thrust can be applied to the fixed sleeve, and the plug board can be driven to abut against the outer surface of the screw rod. Since the arc-shaped teeth are of an arc-shaped structure and the end of the plug board is of an arc-shaped structure, when the screw rod is tightened, the two arc-shaped surfaces are mutually extruded, so that the plug board can be retracted, and the screw rod can rotate smoothly. When the screw rod is rotated in the reverse direction, the vertical surface of the arc-shaped teeth abuts against the vertical surface of the end of the plug board, so that the screw rod can be prevented from reversing. And when the plug board is lifted upwards, it can be separated from the arc-shaped teeth, so that the screw rod can be rotated in the reverse direction for operation, which is convenient for removal.

[0011] Furthermore, six self-locking mechanisms are provided, and the six self-locking mechanisms are distributed around the screw rod coaxially and arrayed on the outer surface of the connecting joint.

[0012] Through the setting of the six self-locking mechanisms, six positioning points can be provided for the screw rod, so as to increase the acting force against the reversal of the screw rod. Since the train will generate a large vibration force on the rail during operation, it can ensure that the screw rod has sufficient stability under long-term use. And when one of the self-locking mechanisms is damaged, the other self-locking mechanisms can still provide self-locking property, and the safety is high.

[0013] Furthermore, a wedge-shaped groove is opened on the outer surface of the plug board, and six wedge-shaped blocks are coaxially arrayed and installed on the outer surface of the ring.

[0014] Since the wedge-shaped groove is a wedge-shaped structure and the wedge block is a wedge-shaped structure, when the wedge block is inserted into the wedge-shaped groove at a fixed angle, through the extrusion of the inclined surface, the insertion plate can be driven to move upward, so that its end part is disengaged from the arc-shaped teeth, thereby releasing the locking of the screw. Since the six wedge blocks are all installed on the circular ring, the unlocking of the six insertion plates can be realized simultaneously, so it is convenient to remove the screw.

[0015] Furthermore, bolts are installed on the outer surface of the circular ring, and screw holes are provided on the outer surface of the connection joint.

[0016] When the six wedge blocks are inserted into the six wedge-shaped grooves simultaneously to disengage the six insertion plates from the arc-shaped teeth, the bolts can be screwed into the screw holes, so that the circular ring can be fixed, and both hands can be freed to perform the removal operation of the screw. During normal use, the circular ring does not need to be installed.

[0017] Furthermore, six support rods are installed on the outer surface of the connection joint in a coaxial array around the screw, and an abutting ring is jointly installed at the ends of the six support rods.

[0018] After the screw is tightened, the hexagonal end abuts against the abutting ring, and the nut abuts against the track rail, so that the track rail and the connection joint can be firmly fixed together.

[0019] Furthermore, two fixing sleeves are arranged on the outer surface of the insertion plate, and the two fixing sleeves are respectively arranged on both sides of the insertion plate.

[0020] Since the screw generates torque, a lateral force will be generated on the insertion plate. By arranging fixing sleeves on both sides of the insertion plate, the ability of the insertion plate to resist lateral force can be improved, so its structural strength is improved.

[0021] Furthermore, an anti-rust paint is applied on the outer surface of the spring.

[0022] The anti-rust paint has good corrosion resistance. Since the spring is exposed to the outside, the situation of rust and corrosion of the spring can be reduced, and its service life can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is one of the three-dimensional structural schematic diagrams of the present utility model;

[0024] Figure 2 is the second three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 3 is the front sectional structural schematic diagram of the present utility model;

[0026] Figure 4 is one of the partial structural schematic diagrams of the present utility model;

[0027] Figure 5 is the second partial structural schematic diagram of the present utility model;

[0028] Figure 6 This is a schematic cross-sectional structure diagram of the insertion plate in the present utility model;

[0029] Figure 7 This is a schematic structure diagram of the circular ring and the wedge block in the present utility model;

[0030] Figure 8 This is a schematic structure diagram of the screw rod in the present utility model.

[0031] In the figure: 100, track-laying rail; 101, connecting joint; 102, jack; 103, screw rod; 104, hexagonal end; 105, arc-shaped locking teeth; 106, nut; 107, hexagonal limiting sleeve; 200, self-locking mechanism; 201, insertion plate; 202, fixing block; 203, sliding rod; 204, fixing sleeve; 205, top plate; 206, spring; 300, wedge groove; 301, circular ring; 302, wedge block; 400, bolt; 401, threaded hole; 500, support rod; 501, abutting ring. Specific embodiments

[0032] The present utility model will be described in detail below with reference to the accompanying drawings.

[0033] As Figure 1-8 shown, a riveting fastener for railway track laying with an anti-detachment structure includes a track-laying rail 100, a connecting joint 101, a screw rod 103, and a circular ring 301. Jacks 102 are provided inside both the track-laying rail 100 and the connecting joint 101. A hexagonal end 104 is installed at the end of the screw rod 103. A plurality of arc-shaped locking teeth 105 are coaxially arranged on the outer surface of the screw rod 103. A nut 106 is threadedly connected to the outer surface of the screw rod 103. A hexagonal limiting sleeve 107 is installed on the outer surface of the track-laying rail 100, and the hexagonal limiting sleeve 107 is adapted to the nut 106. A self-locking mechanism 200 that is positioned and cooperates with the arc-shaped locking teeth 105 is provided on the outer surface of the connecting joint 101.

[0034] When in use, the nut 106 is stuck in the hexagonal limiting sleeve 107, and then the screw 103 is inserted into the socket 102 and the nut 106 is tightened on the outer surface of the screw 103. The hexagonal limiting sleeve 107 limits the nut 106, thereby preventing the nut 106 from rotating backward. The positioning cooperation between the self-locking mechanism 200 and the arc-shaped clamping teeth 105 can make the screw 103 rotate in only one direction, and the purpose of self-locking can be achieved when the screw 103 stops rotating. Therefore, the screw 103 can be prevented from rotating backward, and the loosening of the rails during use is avoided. In addition, since the self-locking mechanism 200 is arranged on the outside of the connecting joint 101, it is convenient for the operator to operate it to disengage it from the positioning cooperation with the arc-shaped clamping teeth 105, thereby achieving the purpose of easy removal, facilitating the later maintenance and replacement of the rails, and being easy to use.

[0035] Specifically, the self-locking mechanism 200 includes an insert plate 201 with an arc-shaped end portion arranged on the outside of the connecting joint 101, a fixing sleeve 204 is installed on the outer surface of the insert plate 201, a sliding rod 203 is inserted inside the fixing sleeve 204, a fixing block 202 is installed at one end of the sliding rod 203, and the fixing block 202 is connected to the connecting joint 101, a top plate 205 is installed at the other end of the sliding rod 203, and a spring 206 is sleeved on the outer surface of the sliding rod 203, and the two ends of the spring 206 are respectively in contact with the fixing sleeve 204 and the fixing block 202, and through the elastic force of the spring 206, a thrust can be continuously applied to the fixing sleeve 204, and the fixing block 202 can be brought into contact with the fixing sleeve 204. The movable plug plate 201 is against the outer surface of the screw rod 103. Since the arc-shaped tooth 105 is an arc-shaped structure and the end of the plug plate 201 is an arc-shaped structure, when the screw rod 103 is tightened, the two arc-shaped surfaces squeeze each other, so that the plug plate 201 can retract, so that the screw rod 103 can rotate smoothly. When the screw rod 103 is rotated in the opposite direction, the vertical surface of the arc-shaped tooth 105 and the vertical surface of the end of the plug plate 201 abut against each other, so that the screw rod 103 can be prevented from reversing. When the plug plate 201 is lifted upward, it can be separated from the arc-shaped tooth 105, so the screw rod 103 can be rotated in the opposite direction, which is convenient for removal.

[0036] Specifically, six self-locking mechanisms 200 are provided, and the six self-locking mechanisms 200 are distributed on the outer surface of the connecting joint 101 in a coaxial array around the screw 103. Through the provision of the six self-locking mechanisms 200, six-point positioning can be provided for the screw 103, thereby increasing the force to resist the flipping of the screw 103. Since a large vibration force is generated on the rails when the train is running, it can ensure that the screw 103 has sufficient stability under long-term use, and when one of the self-locking mechanisms 200 is damaged, the other self-locking mechanisms 200 can still provide self-locking, and the safety is high.

[0037] Specifically, a wedge-shaped groove 300 is formed on the outer surface of the plug board 201. Six wedge-shaped blocks 302 are coaxially and arrayedly installed on the outer surface of the ring 301. Since the wedge-shaped groove 300 is of a wedge-shaped structure and the wedge-shaped blocks 302 are of a wedge-shaped structure, when the wedge-shaped blocks 302 are inserted into the wedge-shaped groove 300 at a fixed angle, the plug board 201 can be driven to move upward through the extrusion of the inclined surface, so that the end of the plug board 201 is disengaged from the arc-shaped teeth 105, thereby releasing the locking of the screw 103. Since the six wedge-shaped blocks 302 are all installed on the ring 301, the unlocking of the six plug boards 201 can be realized simultaneously, so it is convenient to remove the screw 103.

[0038] Specifically, a bolt 400 is installed on the outer surface of the ring 301, and a screw hole 401 is formed on the outer surface of the connection joint 101. When the six wedge-shaped blocks 302 are inserted into the six wedge-shaped grooves 300 simultaneously to disengage the six plug boards 201 from the arc-shaped teeth 105, the bolt 400 can be screwed into the screw hole 401, so as to fix the ring 301, and both hands can be freed to perform the removal operation of the screw 103. During normal use, the ring 301 does not need to be installed.

[0039] Specifically, six support rods 500 are coaxially and arrayedly installed on the outer surface of the connection joint 101 around the screw 103. An abutting ring 501 is jointly installed at the ends of the six support rods 500. After the screw 103 is tightened, the hexagonal end 104 abuts against the abutting ring 501, and the nut 106 abuts against the track rail 100, so the track rail 100 and the connection joint 101 can be firmly fixed together.

[0040] Specifically, two fixing sleeves 204 are arranged on the outer surface of the plug board 201, and the two fixing sleeves 204 are respectively arranged on both sides of the plug board 201. Since the screw 103 generates a torsional force that will produce a lateral force on the plug board 201, by arranging the fixing sleeves 204 on both sides of the plug board 201, the ability of the plug board 201 to resist the lateral force can be improved, so its structural strength is improved.

[0041] Specifically, an anti-rust paint is applied on the outer surface of the spring 206. The anti-rust paint has good corrosion resistance. Since the spring 206 is exposed to the outside, the situation of rust and corrosion of the spring 206 can be reduced, and its service life is improved.

[0042] The above is a detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several equivalent substitutions or obvious modifications are made, and the performance or use is the same, and all should be regarded as belonging to the patent protection scope determined by the claims submitted by the present invention.

Claims

1. A rivet fastener for laying railway tracks with an anti-falling structure, comprising a track rail (100), a connecting joint (101), a screw (103) and a ring (301), characterized in that: The track rail (100) and the connecting joint (101) are both provided with a socket (102), the end of the screw rod (103) is provided with a hexagonal end cap (104), the outer surface of the screw rod (103) is provided with a plurality of arc-shaped teeth (105) in a coaxial array, the outer surface of the screw rod (103) is threadedly connected with a nut (106), the outer surface of the track rail (100) is provided with a hexagonal limit sleeve (107), and the hexagonal limit sleeve (107) is matched with the nut (106); The outer surface of the connecting joint (101) is provided with a self-locking mechanism (200) that is positioned and matched with the arc-shaped latching teeth (105).

2. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 1 is characterized in that: The self-locking mechanism (200) comprises an insert plate (201) with an arc-shaped end portion arranged outside the connecting joint (101); a fixing sleeve (204) is installed on the outer surface of the insert plate (201); a sliding rod (203) is inserted inside the fixing sleeve (204); a fixing block (202) is installed at one end of the sliding rod (203), and the fixing block (202) is connected to the connecting joint (101); a top plate (205) is installed at the other end of the sliding rod (203); a spring (206) is sleeved on the outer surface of the sliding rod (203), and two ends of the spring (206) are respectively in contact with the fixing sleeve (204) and the fixing block (202).

3. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 2, characterized in that: Six self-locking mechanisms (200) are provided, and the six self-locking mechanisms (200) are distributed on the outer surface of the connecting joint (101) in a coaxial array around the screw rod (103).

4. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 3, characterized in that: The outer surface of the insert plate (201) is provided with a wedge-shaped groove (300), and the outer surface of the ring (301) is provided with six wedge-shaped blocks (302) arranged in a coaxial array.

5. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 4, characterized in that: Bolts (400) are installed on the outer surface of the circular ring (301), and screw holes (401) are provided on the outer surface of the connecting joint (101).

6. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 5, characterized in that: Six support rods (500) are installed on the outer surface of the connection joint (101) in a coaxial array around the screw rod (103), and abutment rings (501) are installed on the ends of the six support rods (500).

7. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 5, characterized in that: Two fixing sleeves (204) are provided on the outer surface of the plug board (201), and the two fixing sleeves (204) are respectively provided on two sides of the plug board (201).

8. The pull rivet fastener for laying railway tracks with an anti-falling structure according to claim 5, characterized in that: The outer surface of the spring (206) is coated with anti-rust paint.

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