Self-locking anti-slip-off rail clamp

Abstract

The utility model relates to rail transportation technical field discloses a kind of self-locking anti-slip lifting rail clamp, including suspension arm and embrace arm;The top of the suspension arm is provided with a sling hole, and the suspension arm is provided with the first hinged hole for connecting the embrace arm;The top of the embrace arm is provided with the second hinged hole for hinging suspension arm, and the embrace arm is provided with through long slot on the part length from one end of second hinged hole, and the through long slot is used to accommodate part of rotating suspension arm;The suspension arm and embrace arm form corresponding rail clamping part, and are respectively marked as first rail clamping part and second rail clamping part, and two rail clamping parts are matched with the rail head contour of steel rail from two sides respectively;Aim at small-batch short-distance rail transportation, detection, debugging scene, by simplifying component, and using asymmetric suspension arm and embrace arm design, so that clamp and rail clamping or loosening have self-locking and self-resolving function, significantly improve convenience and use efficiency.

Description

Technical Field

[0001] This utility model relates to the field of railway transportation technology, and in particular to a self-locking anti-slip rail clamp. Background Technology

[0002] Rail-mounted cranes play a crucial role in many aspects of railway engineering construction. As a commonly used component of rail-mounted cranes, the importance of rail clamps is self-evident. Rail clamps are connected to the gantry frame via holes at the rear end of the clamp shaft; movement of the gantry frame causes the rail clamps to move synchronously.

[0003] However, currently used rail clamps present numerous inconveniences for the routine small-batch, short-distance transportation, inspection, and debugging of railway tracks. Structurally, existing rail clamp designs are relatively complex, increasing manufacturing costs and resulting in less flexible and convenient operation, frequently leading to jamming. For on-site workers, once a rail clamp malfunctions, its complex structure makes it difficult to quickly and independently complete replacement work, severely impacting work progress. Furthermore, the clamping or loosening of the rail clamp requires simultaneous application of external force to achieve a smooth engagement, significantly reducing operational convenience. Utility Model Content

[0004] To address existing problems, this utility model provides a self-locking, anti-slip rail clamp, designed for small-batch, short-distance rail transportation, inspection, and debugging scenarios. By simplifying components and adopting an asymmetrical suspension arm and clamping arm design, the clamp has self-locking and self-unlocking functions when clamping or releasing the rail, significantly improving convenience and efficiency. Furthermore, the design of the clamping part conforms to the rail, protecting the smooth surface of the rail while ensuring a tight and stable clamping.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A self-locking anti-slip rail clamp includes a suspension arm and a clamping arm; the top end of the suspension arm is provided with a sling hole, and the suspension arm is provided with a first hinge hole for connecting the clamping arm; the top end of the clamping arm is provided with a second hinge hole for hinged connection of the suspension arm, and the clamping arm has a through slot along a portion of its length from the end where the second hinge hole is provided, the through slot being used to accommodate a portion of the suspension arm that rotates in; the suspension arm and the clamping arm form corresponding rail clamping parts, respectively referred to as the first rail clamping part and the second rail clamping part, and the two rail clamping parts respectively cooperate with the rail head shape from both sides.

[0007] As a further improvement of this utility model, the arm includes a straight arm portion and a second clamping rail portion, and the included angle between the two is a right angle.

[0008] As a further improvement of this utility model, the line connecting the center of mass of the suspension arm and the arm is perpendicular to the geometric center line of the straight arm.

[0009] As a further improvement of this utility model, a first hinge hole is provided at the lower middle position of the suspension arm.

[0010] As a further improvement of this utility model, the outer ends of both clamping rails are rounded.

[0011] As a further improvement of this utility model, protective pads are used on one side of the contact surface between the two rail clamps and the rail.

[0012] As a further improvement of this utility model, the two clamping rails are respectively provided with corresponding first telescopic parts and second telescopic parts.

[0013] As a further improvement of this utility model, both the first telescopic part and the second telescopic part are adjusted by a worm gear.

[0014] As a further improvement of this utility model, the outer surfaces of the suspension arm and the grab arm are both covered with a waterproof coating.

[0015] As a further improvement of this utility model, both the suspension arm and the grab arm are made of steel.

[0016] This utility model has the following beneficial effects: Through the structural design of the suspension arm and the clamping arm, and the matching of the first and second rail clamping parts with the shape of the rail head, it can be firmly clamped on the rail, realizing the self-locking and anti-slip function, which significantly improves convenience and efficiency of use; and through the shape design of the rail clamping part to fit the rail, it not only protects the smooth surface of the rail, but also ensures a tight and stable clamping.

[0017] Preferably, this right-angle structure is easy to manufacture and makes the contact and clamping between the clamping arm and the rail more stable and close, which can distribute the clamping force more evenly and enhance the load-bearing capacity and anti-slip performance of the clamp.

[0018] Preferably, the center of gravity positions of the suspension arm and the clamping arm help the clamp maintain balance when under force, reduce swaying and offset caused by uneven force, improve the stability and reliability of the clamp during the lifting process, and make the lifting operation more stable and safe. In addition, the center of gravity positions of the suspension arm and the clamping arm can keep the clamping arm as horizontal as possible with the rail head plane when gripping, which helps to reduce slippage.

[0019] Preferably, the first hinge hole is set at the lower center position, which optimizes the connection position between the suspension arm and the clamping arm, so that the suspension arm and the clamping arm have a larger opening angle when the clamp is opened and closed. The overall force of the clamp is more reasonable, which makes it easier for the operator to control the movement of the clamp. At the same time, it also helps to improve the overall strength and stability of the clamp.

[0020] Preferably, rounded corners can prevent the outer end of the rail clamp from being too sharp, preventing accidental scratches and collisions when clamping the rail or coming into contact with surrounding objects, protecting the rail and the clamp itself from damage, and also reducing potential injury to operators.

[0021] Preferably, the protective pad can increase the friction between the clamping part and the rail, further improving the anti-slip capability of the clamp; at the same time, it can buffer the pressure of the clamping part on the rail, avoid damage to the rail surface due to excessive clamping force, and extend the service life of the rail and the clamp.

[0022] Preferably, the telescopic part allows the clamp to adapt to rails of different specifications and sizes, expanding the applicability of the clamp, improving its versatility and flexibility, eliminating the need for frequent clamp replacements due to changes in rail specifications, and reducing usage costs.

[0023] Preferably, the worm gear adjustment method is simple and precise to operate, and can easily control the extension and retraction of the telescopic part. This allows operators to quickly and accurately adjust the clamping size of the clamp on the rail according to actual needs, thereby improving work efficiency and clamping quality.

[0024] Preferably, the waterproof coating can effectively prevent the suspension arm and clamp arm from rusting and corroding in humid environments, extend the service life of the clamp, ensure the stable performance of the clamp in various harsh environments, and reduce problems such as structural strength reduction caused by corrosion. The waterproof coating is mainly applied to the outer surface, while the inner surface does not need to be coated because it is frequently clamped to the rail. This coating method specifically protects the areas of the clamp that are prone to corrosion.

[0025] Alternatively, steel materials have high strength, good toughness and durability, and can withstand large tensile and compressive forces during the lifting process, ensuring that the clamps maintain a stable structure and reliable clamping performance under heavy loads, thus meeting the actual needs of lifting operations. Attached Figure Description

[0026] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is an overall diagram of a self-locking anti-slip lifting rail clamp as described in Example 1; Figure 2 This is a schematic diagram of the suspension arm described in Example 1; Figure 3 This is a schematic diagram of the arm as described in Example 1; Figure 4 This is a schematic diagram of the telescopic part and worm gear of a self-locking anti-slip lifting rail clamp as described in Example 2; Among them, 1. suspension arm; 2. clamping arm; 3. first hinge hole; 4. second hinge hole; 5. first rail clamping part; 6. second rail clamping part; 7. sling hole; 8. straight arm part; 9. first telescopic part; 10. second telescopic part; 11. first worm gear; 12. second worm gear. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0029] Unless otherwise defined below, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1 like Figure 1As shown, a self-locking anti-slip rail clamp includes a suspension arm 1 and a clamping arm 2. The top end of the suspension arm 1 is provided with a sling hole 7, and the suspension arm 1 is provided with a first hinge hole 3 for connecting the clamping arm 2. The top end of the clamping arm 2 is provided with a second hinge hole 4 for hinged to the suspension arm 1. The clamping arm 2 has a through slot along a portion of its length from the end where the second hinge hole 4 is provided. The through slot is used to accommodate the suspension arm 1 that rotates in partially. The suspension arm 1 and the clamping arm 2 form corresponding rail clamping parts, which are respectively referred to as the first rail clamping part 5 and the second rail clamping part 6. The two rail clamping parts respectively cooperate with the rail head shape from both sides.

[0031] like Figure 2 As shown, the first hinge hole 3 is located slightly below the middle of the suspension arm 1. The connection position between the suspension arm and the clamping arm is optimized, so that the suspension arm and the clamping arm have a larger angle when the clamp is opened and closed. The overall force of the clamp is more reasonable, which makes it easier for the operator to control the movement of the clamp. At the same time, it also helps to improve the overall strength and stability of the clamp.

[0032] like Figure 3 As shown, the clamping arm 2 includes a straight arm portion 8 and a second rail clamping portion 6, with a right angle between them. This right-angle structure facilitates manufacturing and makes the contact and clamping between the clamping arm and the rail more stable and close, which can more evenly distribute the clamping force and enhance the load-bearing capacity and anti-slip performance of the clamp.

[0033] like Figure 1 As shown, the line connecting the centers of mass of the suspension arm 1 and the grab arm 2 is perpendicular to the geometric center line of the straight arm 8.

[0034] like Figure 1-3 As shown, both outer ends of the rail clamps are rounded. In a railway maintenance yard, these rail clamps are used to lift rails. During lifting, the clamps need to move and adjust their position frequently on the rails. If the outer ends of the clamps were sharp, they could easily scratch the rail surface during movement, causing damage, and could also be damaged by collisions. However, with rounded corners, the clamps can smoothly glide over the rail edges as they move, avoiding the scratching and collision problems caused by sharp edges. For example, when lifting a long section of rail, the clamps move and position themselves multiple times on the rail. Due to the rounded corner design, no damage is caused to the rails, and the clamps themselves remain intact, ensuring the smooth progress of the lifting operation.

[0035] Optionally, protective pads are used on one side of the contact surface between the two rail clamping parts and the rail. These protective pads act as a buffer and increase friction when clamping the rail. On one hand, the protective pads can evenly distribute the pressure of the rail clamping parts on the rail, preventing damage to the rail surface due to excessive local pressure. On the other hand, the protective pads increase the friction between the rail clamping parts and the rail, effectively preventing the rail clamping parts from slipping off due to vibration or external forces during hoisting.

[0036] Both the outer surfaces of suspension arm 1 and clamp arm 2 are coated with a waterproof coating. This waterproof coating plays a crucial role in long-term use. Due to the high humidity in coastal areas, without it, suspension arm 1 and clamp arm 2 would easily rust and corrode, leading to a decrease in structural strength. The waterproof coating effectively prevents moisture and humid air from contacting the metal surface, thus preventing rust.

[0037] Both the suspension arm 1 and the clamping arm 2 are made of steel. The suspension arm 1 and the clamping arm 2 of this rail clamping section are both made of steel. Steel has high strength and good toughness, and can withstand enormous tensile and compressive forces.

[0038] Example 2 like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that: 1) The two rail clamps are respectively provided with corresponding first telescopic part 9 and second telescopic part 10.

[0039] 2) Both the first telescopic part 9 and the second telescopic part 10 are adjusted by a worm gear.

[0040] like Figure 4 As shown, the first rail clamping section 5 and the second rail clamping section 6 are respectively provided with a first telescopic section 9 and a second telescopic section 10. The first telescopic section 9 is adjusted by a first worm gear 11 provided in the first rail clamping section 5, and the second telescopic section 10 is adjusted by a second worm gear 12 provided in the second rail clamping section 6. When it is necessary to clamp narrower rails, such as in light rail vehicles, the operator can use the adjustment device to retract the first telescopic section 9 and the second telescopic section 10, reducing the distance between the two rail clamping sections, thereby tightly clamping the narrow rail.

[0041] The above embodiments are merely one of the implementation methods for achieving the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions, and other implementation methods that are easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking anti-slip lifting rail clamp, characterized in that, It includes a suspension arm (1) and a clamping arm (2); the top end of the suspension arm (1) is provided with a sling hole (7), and the suspension arm (1) is provided with a first hinge hole (3) for connecting the clamping arm (2); the top end of the clamping arm (2) is provided with a second hinge hole (4) for hinged to the suspension arm (1), and the clamping arm (2) has a through slot along part of its length from the end where the second hinge hole (4) is provided, the through slot is used to accommodate the suspension arm (1) that rotates in; the suspension arm (1) and the clamping arm (2) form corresponding rail clamping parts, which are respectively referred to as the first rail clamping part (5) and the second rail clamping part (6), and the two rail clamping parts respectively cooperate with the rail head shape from both sides.

2. The self-locking anti-slip lifting rail clamp according to claim 1, characterized in that, The arm (2) includes a straight arm (8) and a second clamping rail (6), and the angle between the two is a right angle.

3. The self-locking anti-slip lifting rail clamp according to claim 2, characterized in that, The line connecting the center of mass of the suspension arm (1) and the arm (2) is perpendicular to the geometric center line of the straight arm (8).

4. The self-locking anti-slip lifting rail clamp according to claim 3, characterized in that, The first hinge hole (3) is provided at the lower middle part of the suspension arm (1).

5. A self-locking anti-slip lifting rail clamp according to claim 1, characterized in that, Both outer ends of the rail clamps are rounded.

6. A self-locking anti-slip lifting rail clamp according to claim 5, characterized in that, Protective pads are used on one side of the contact surface between the two rail clamps and the rail.

7. A self-locking anti-slip lifting rail clamp according to claim 1, characterized in that, The two clamping rails are respectively provided with a first telescopic part (9) and a second telescopic part (10).

8. A self-locking anti-slip lifting rail clamp according to claim 7, characterized in that, Both the first telescopic part (9) and the second telescopic part (10) are adjusted by a worm gear.

9. A self-locking anti-slip lifting rail clamp according to claim 1, characterized in that, The outer surfaces of the suspension arm (1) and the clamp arm (2) are both covered with a waterproof coating.

10. A self-locking anti-slip lifting rail clamp according to claim 9, characterized in that, Both the suspension arm (1) and the clamp arm (2) are made of steel.

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