A self-locking iron shoe anti-slip device

Abstract

This utility model belongs to the field of railway safety equipment and provides a self-locking anti-slip device for rail shoes. It includes a base plate for mounting on the rail, comprising a pressure plate and side plates on both sides. The wheel brake is mounted on the base plate, with a locking assembly on the inner side and anti-derailment assemblies on both sides. The locking assembly includes a rotating shaft mounted on the base plate and several cams mounted thereon, with the long axes of adjacent cams perpendicular to each other. The anti-derailment assembly is hinged to the wheel brake. This utility model forms a mechanical self-locking structure through the perpendicular and staggered cooperation of double cams and positioning arc blocks, eliminating the need for springs and other easily damaged parts. It achieves lever locking, and the eccentric shaft and brake arm are made of cast steel, extending their service life. The unlocking assembly can be operated simply by rotating a special wrench, simplifying the complex unlocking process in existing technologies. No manual intervention is required during the locking process; unlocking only requires a single rotation of the special wrench, meeting the high-efficiency requirements of railway operations.

Description

Technical Field

[0001] This utility model belongs to the field of railway safety equipment, specifically a self-locking anti-slip device for iron shoes. Background Technology

[0002] In the railway transportation sector, anti-slip wheel devices are key equipment to ensure the safety of vehicle parking. They prevent vehicles from accidentally slipping away by creating friction between the wheels and the rails.

[0003] Existing anti-slip wheel shoes mostly consist of a base plate, a brake plate, and a locking structure. Anti-slip wheel shoes improve their anti-slip effect by increasing the contact area with the wheel, and the locking structure prevents them from derailing or being lost. Current mainstream locking structures mostly rely on torsion springs or springs for locking. Torsion springs have limited strength and insufficient opening and closing braking force. With prolonged use, they are prone to fatigue fracture due to repeated stress, leading to self-locking failure. Springs, in outdoor environments, are easily corroded by rain and snow, and their elasticity gradually decreases. This not only reduces locking force but may also cause mis-locking, especially in low temperatures where the spring's elasticity deteriorates, resulting in a slow locking response. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a self-locking anti-slip device for iron shoes, which solves the problem that existing anti-slip iron shoes mostly use elastic elements to achieve self-locking, but elastic elements are prone to fatigue and damage, have poor environmental adaptability, and low locking reliability.

[0005] A self-locking anti-slip device for iron shoes, comprising:

[0006] A base plate, used to be installed on the rail, includes a pressure plate and side plates on both sides thereon;

[0007] Wheel brakes, located on the base plate, are used to brake the wheels. They have a locking component on the inside and anti-derailment components on both sides.

[0008] The locking assembly includes a rotating shaft mounted on a base plate and several cams mounted thereon, with the long axes of adjacent cams being perpendicular to each other, used to drive the anti-derailment assembly to achieve self-locking;

[0009] The anti-derailment component, hinged to the wheel brake, is used to prevent the device from derailing and can be used with the locking component to form a lock.

[0010] Preferably, the side plate is used to be fitted on both sides of the rail, and the bottom is provided with an anti-slip rubber pad with a diamond pattern. The side plate is provided with a clearance groove, and the anti-derailment component is located inside the clearance groove.

[0011] Preferably, the wheel brake has an arc-shaped structure that is adapted to the outer contour of the wheel, and has a guide hole and a notch groove on it, and the anti-derailment component is hinged in the notch groove.

[0012] Preferably, the upper end of the rotating shaft is provided with an irregularly shaped end located in the through hole. The irregularly shaped end is a triangular or pentagonal structure, used to cooperate with a special wrench for operation.

[0013] Preferably, the anti-derailment assembly includes an anti-derailment arm and positioning arc blocks located on the upper and lower sides of its hinge point, and the cam has positioning grooves at both ends that are adapted to the positioning arc blocks.

[0014] Preferably, there are two cams, which can be rotated to push the anti-disengagement arm to rotate around the hinge point, so that the positioning arc block can be locked into the positioning groove to achieve self-locking.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model forms a mechanical self-locking structure through the vertical interlocking of double cams and positioning arc blocks, eliminating the need for easily damaged parts such as springs, and achieving lever locking. The eccentric shaft and brake arm are made of cast steel, extending their service life.

[0017] 2. This utility model simplifies the complex unlocking process in the prior art by allowing the unlocking component to be operated simply by rotating a special wrench. It eliminates the need for manual intervention in the locking process, and unlocking requires only a single rotation of the special wrench, thus meeting the high-efficiency requirements of railway operations. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the third-view three-dimensional structure of this utility model.

[0021] In the picture:

[0022] 1. Base plate; 101. Pressure plate; 102. Side plate; 2. Wheel brake; 3. Locking assembly; 301. Rotary shaft; 302. Cam; 303. Irregular end; 4. Anti-derailment assembly; 401. Anti-derailment arm; 402. Positioning arc block; 5. Clearance groove; 6. Positioning groove. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] As attached Figure 1 To be continued Figure 3As shown, this utility model provides a self-locking anti-slip device for iron shoes, including a base plate 1, a wheel brake 2, a locking component 3, and an anti-derailment component 4.

[0025] As attached Figure 1 To be continued Figure 2 As shown, the base plate 1 includes a pressure plate 101, which is made of high-strength alloy steel plate and has good load-bearing capacity. Side plates 102 are welded to both sides of the pressure plate 101, and the side plates 102 are perpendicular to the pressure plate 101, used to fit onto both sides of the rail. This installation method ensures a tight fit between the device and the rail, guaranteeing the stability of the overall structure. Anti-slip rubber pads are attached to the bottom of the side plates 102. The surface of the rubber pads has a diamond-shaped pattern, which increases the friction between the pads and the rail, effectively preventing the track shoe from slipping.

[0026] As attached Figure 2 To be continued Figure 3 As shown, a clearance groove 5 is provided on the side plate 102. The clearance groove 5 has a rectangular structure. The anti-derailment component 4 is located inside the clearance groove 5. This position setting allows the anti-derailment component 4 to operate without being obstructed by the side plate 102, ensuring its normal operation.

[0027] As attached Figure 1 To be continued Figure 3 As shown, the wheel brake 2 is an arc-shaped steel plate, which is spliced ​​with three other steel plates and welded to one end of the pressure plate 101. This splicing and welding installation method ensures a firm connection between the wheel brake 2 and the pressure plate 101, enabling it to withstand greater impact forces. The wheel brake 2 is used for wheel braking. Its arc-shaped structure is adapted to the outer contour of the wheel, which increases the contact area with the wheel and improves the braking effect. The wheel brake 2 is provided with a guide hole and a notch. The guide hole is circular, and the notch is arc-shaped, providing space for the installation of the locking assembly 3 and the anti-derailment assembly 4.

[0028] As attached Figure 2 To be continued Figure 3 As shown, the locking assembly 3 includes a rotating shaft 301 rotatably mounted on the base plate 1. The rotating shaft 301 is mounted on the pressure plate 101 via a bearing seat, which is fixed with bolts to ensure that the rotating shaft 301 rotates flexibly and stably. Two cams 302 are provided on the rotating shaft 301, and both ends of the long axis of the two cams 302 are provided with positioning grooves 6 that are adapted to the positioning arc block 402. The long axes of adjacent cams 302 are perpendicular to each other. An irregularly shaped end 303 is provided at the upper end of the rotating shaft 301. The irregularly shaped end 303 is a triangular or pentagonal structure and is located within a guide hole, facilitating operation with a dedicated wrench and preventing accidental operation by non-professionals.

[0029] As attached Figure 2 To be continued Figure 3As shown, the anti-derailment assembly 4 includes an anti-derailment arm 401 hinged within a notch groove. The anti-derailment arm 401 is hinged to the notch groove via a pin, and the pin and the side wall of the notch groove are interference-fitted to ensure a firm hinge of the anti-derailment arm 401. Positioning arc blocks 402 are provided on both the upper and lower sides of the hinge point on the anti-derailment arm 401. The positioning arc blocks 402 are welded to the anti-derailment arm 401, and their curvature matches the positioning groove 6, forming a tight snap-fit ​​with the positioning groove 6 to achieve reliable self-locking.

[0030] As attached Figure 1 and attached Figure 3 As shown, the through hole and the special wrench adopt a rotating slot design. The wrench can only be removed when the upper cam 302 and the upper positioning arc block 402 are locked together. This design can effectively prevent misoperation and further improve the safety of the device.

[0031] Working principle: By turning the irregular end 303 of the rotating shaft 301 with a special wrench, the two cams 302 rotate. When the upper cam 302 abuts against the upper positioning arc block 402, the anti-detachment arm 401 rotates around the hinge point under the thrust of the cam 302, and its lower end moves inward to lock the base plate 1 to the rail. At this time, the positioning arc block 402 is engaged in the positioning groove 6, achieving self-locking, and the special wrench can be removed. When the lower cam 302 abuts against the lower positioning arc block 402, the lower end of the anti-detachment arm 401 opens outward, releasing the lock between the base plate 1 and the rail, completing the unlocking operation.

[0032] The embodiments of this utility model are given for the purpose of illustration and description. Although the embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-locking anti-slip device for iron shoes, characterized in that, include: The base plate (1) is used to be installed on the rail, and includes a pressure plate (101) and side plates (102) on both sides thereon; Wheel brake (2) is installed on the base plate (1) and is used to brake the wheels. It has a locking component (3) on the inside and anti-derailment components (4) on both sides. The locking assembly (3) includes a rotating shaft (301) rotatably mounted on the base plate (1) and several cams (302) mounted thereon, with the long axes of adjacent cams (302) being perpendicular to each other, used to drive the anti-derailment assembly (4) to achieve self-locking; The anti-derailment assembly (4), hinged to the wheel brake (2), is used to prevent the device from derailing and can be used with the locking assembly (3) to form a lock.

2. The self-locking anti-slip device for iron shoes as described in claim 1, characterized in that, The side plate (102) is used to be fitted on both sides of the rail. The bottom is provided with a non-slip rubber pad with a diamond pattern. The side plate (102) is provided with a clearance groove (5). The anti-derailment component (4) is located inside the clearance groove (5).

3. The self-locking anti-slip device for iron shoes as described in claim 1, characterized in that, The wheel brake (2) has an arc-shaped structure that is adapted to the outer contour of the wheel. It is provided with a guide hole and a notch. The anti-derailment component (4) is hinged in the notch.

4. The self-locking anti-slip device for iron shoes as described in claim 1, characterized in that, The upper end of the rotating shaft (301) is provided with an irregular end (303) located in the through hole. The irregular end (303) is a triangular or pentagonal structure and is used to cooperate with a special wrench for operation.

5. The self-locking anti-slip device for iron shoes as described in claim 1, characterized in that, The anti-derailment assembly (4) includes an anti-derailment arm (401) and positioning arc blocks (402) located on the upper and lower sides of its hinge point. The cam (302) has positioning grooves (6) at both ends that are adapted to the positioning arc blocks (402).

6. The self-locking anti-slip device for iron shoes as described in claim 1, characterized in that, There are two cams (302). By rotating them, the anti-disengagement arm (401) can be driven to rotate around the hinge point, so that the positioning arc block (402) can be locked into the positioning groove (6) to achieve self-locking.

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