A rail gauge and gage bar dismounting wrench

Abstract

The utility model discloses a rail gauge pole, branch span pole dismounting wrench to overcome the deficiency of the low efficiency caused by the frequent adjustment when the rail gauge pole, branch span pole dismounting of prior art, the wrench includes force arm pole and adjusting mechanism, and one end of force arm pole is holding end, and the other end is the abutment end, and the abutment end can be quickly abutted to the disassembled piece when using, and the initial positioning adjustment is reduced, and the fastening mechanism for clamping the disassembled piece is arranged at the abutment end of force arm pole, can stably clamp the disassembled piece, avoids the repeated adjustment caused by the displacement of the part in the dismounting. Adjusting mechanism is connected with the middle part of force arm pole, can be adapted and locked different specifications nut, need not frequently change the tool or adjust the bayonet multiple times. The structure simplifies the dismounting operation step, reduces the adjustment frequency, improves the rail gauge pole, branch span pole dismounting operation efficiency, is applicable to the daily maintenance operation of line work area.

Description

Technical Field

[0001] This utility model relates to the field of railway engineering tooling technology, specifically to a wrench for disassembling and assembling gauge rods and support rods. Background Technology

[0002] Gauge and support rods are specifically used to control the track gauge of railway lines, ensuring their stability and safety. Gauge rods maintain the track gauge, while support rods maintain the support distance, i.e., the distance between the stock rail and switch rail in a turnout. Gauge rods are used more extensively on curved sections of dedicated lines, while support rods are widely used on turnouts. In routine track maintenance and upkeep, it is frequently necessary to disassemble and assemble gauge and support rods. However, traditional adjustable wrenches often present numerous inconveniences during use. Because gauge and support rods are usually installed near sleepers and ballast in confined spaces, adjusting the position of the adjustable wrench during disassembly requires frequent adjustments, which is not only time-consuming and laborious but also prone to causing bumps and scratches.

[0003] In practice, adjusting the locking distance of an adjustable wrench requires multiple gear rotations, sometimes requiring multiple turns to disassemble or assemble a single nut, significantly impacting work efficiency. Furthermore, using traditional tools carries certain operational risks, such as tool slippage potentially causing hand injuries. To address these issues, it is necessary to design a more efficient and safer dedicated wrench for gauge and support rods, thereby improving operational efficiency and safety in track maintenance areas. Utility Model Content

[0004] The purpose of this utility model is to provide a wrench for disassembling and assembling gauge rods and support rods, so as to overcome the shortcomings of the existing technology that requires frequent adjustments during the disassembly and assembly of gauge rods and support rods, resulting in low efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A wrench for disassembling and assembling track gauge bars and support bars, comprising: The lever arm has a gripping end and an abutting end, which abuts against the part to be disassembled during use; a fastening mechanism for locking the part to be disassembled is provided near the abutting end of the lever arm. The adjustment mechanism, connected to the middle of the lever arm, is used to adapt and lock nuts of different sizes.

[0006] The fastening mechanism is a bayonet, which has a concave structure. Its inner sidewall has multiple edges that are connected end to end, forming a polygonal space for accommodating and clamping the nut.

[0007] The inner wall of the bayonet has four sides, and the included angle between adjacent sides is 90° to 135°.

[0008] The included angles between adjacent sides, starting from the connection between the bayonet and the lever arm, are 110°-130°, 100°-120°, and 90°-110° respectively.

[0009] The length of each side of the inner wall of the bayonet is 15mm to 25mm.

[0010] The thickness of the bayonet is 10mm to 20mm.

[0011] The adjustment mechanism is a flexible locking structure, which locks the disassembled part when the fastening mechanism cannot adapt to the structure of the disassembled part.

[0012] The flexible locking structure is a chain with a length of 300mm to 500mm.

[0013] The length of the lever arm ranges from 450mm to 600mm.

[0014] The adjustment mechanism is detachably connected to the lever arm, and the lever arm has a circular cross-section with a diameter of 25mm to 35mm.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model provides a wrench for disassembling and assembling track gauge rods and support rods. Through the structural design of the lever arm and adjustment mechanism, it effectively reduces frequent adjustments during disassembly and assembly operations. One end of the lever arm is a gripping end, providing the operator with a stable force application reference and preventing tool deviation due to unstable grip. The other end is a contact end, which can be directly contacted with the part to be disassembled, quickly establishing the positioning relationship between the tool and the part. This eliminates the need to repeatedly move the entire tool in the confined space near the sleepers and rubble to align with the part, significantly reducing the frequency of position adjustments. A fastening mechanism is located near the contact end of the lever arm to lock the part in place. After positioning at the contact end, the fastening mechanism quickly and stably engages with the part, fixing the relative position of the tool and the part. This prevents relative displacement of the tool and part during operation due to force application, eliminating the need for repeated adjustments to the contact state and ensuring a continuous force application process and effective torque transmission. The adjustment mechanism is connected to the middle of the lever arm and has the function of adapting to and locking nuts of different specifications. When facing gauge rods and support rod nuts of different specifications, there is no need to roll the gears multiple times to adjust the clamp distance as with traditional adjustable wrenches. The specification adaptation and locking can be completed with a single operation of the adjustment mechanism, reducing the adjustment steps in the specification adaptation process and shortening the operation time of a single disassembly and assembly operation, thereby solving the problem of low efficiency caused by frequent adjustments in the existing technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a wrench for disassembling and assembling a gauge rod and a support rod in an embodiment of this utility model.

[0017] In the diagram, 1 is the lever arm; 2 is the bayonet; and 3 is the adjustment mechanism. Detailed Implementation

[0018] Gauge rods are used to maintain track gauge and are used extensively on curved sections of dedicated lines; support rods are used to maintain the support distance between the stock rail and switch rail of turnouts. Both require frequent disassembly and assembly for routine maintenance. Traditional adjustable wrenches, due to their proximity to sleepers and ballast, operate in confined spaces, requiring frequent repositioning and repeated gear adjustments. This results in low disassembly and assembly efficiency and a high risk of bumps, slippage, and hand injuries. Therefore, it is necessary to design efficient and safe specialized wrenches to improve the efficiency and safety of track maintenance work.

[0019] Based on the above background, this utility model proposes a wrench for disassembling and assembling track gauge rods and support rods. By optimizing the lever arm structure, the gripping end provides a stable fulcrum for force application, and the contact end can quickly fit into the part to be disassembled. This eliminates the need for repeated tool movement in confined working spaces, reducing the frequency of adjustments. By setting a fastening mechanism near the contact end of the lever arm, it can quickly and stably fit into the part to be disassembled, preventing component displacement and making the force application more stable. By connecting an adjustment mechanism in the middle of the lever arm, it can flexibly adapt to nuts of different specifications, eliminating the need for multiple rotations of the adjustment components. Matching and locking can be completed with simple operation, reducing operation steps and shortening time. At the same time, the compact overall structural design reduces accidental contact with sleepers and rubble, and improves the reliability of the connection between the tool and the part to be disassembled, enhancing operational safety and stability.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0024] Reference Figure 1 The image shows a specific embodiment of the gauge rod and support rod disassembly and assembly wrench provided by this utility model, including: Lever arm 1 has a gripping end and an abutting end, which abuts against the part to be disassembled during use; a fastening mechanism for locking the part to be disassembled is provided near the abutting end of lever arm 1. Adjustment mechanism 3 is connected to the middle of lever arm 1 and is used to adapt and lock nuts of different specifications.

[0025] In this specific embodiment, the lever arm 1 is the core load-bearing component for the wrench to perform disassembly and assembly operations. One end of the lever arm 1 is designed as a gripping end, which is designed to provide the operator with a stable gripping reference, ensuring that a reliable force fulcrum can be formed when the operator applies disassembly torque. This avoids force deviation or tool slippage due to unstable grip, laying the foundation for efficient torque transmission to the disassembled part. The other end of the lever arm 1 is designed as a contact end, which must directly contact the disassembled part during use. Through the rigid contact between the contact end and the disassembled part, the positioning relationship between the tool and the disassembled part can be quickly established in the initial stage of the operation, avoiding tool deviation in a confined working space, reducing the need to repeatedly adjust the tool position to align with the disassembled part, and improving the positioning efficiency of the operation.

[0026] A fastening mechanism for clamping the disassembled part is provided near the abutment end of the lever arm 1. This layout can make full use of the positioning base already formed at the abutment end, so that the fastening mechanism can quickly act on the disassembled part after the abutment end contacts the disassembled part, shortening the response distance of the fastening operation and improving the timeliness of the clamping action. At the same time, the clamping function of the fastening mechanism can fix the relative position between the disassembled part and the lever arm 1, ensuring that the disassembled part will not shake or detach from the tool during the force application disassembly and assembly process, ensuring that each force application can effectively act on the disassembled part, and reducing repeated force application operations caused by loose parts.

[0027] The adjusting mechanism 3 is connected to the middle of the lever arm 1. This connection point is located between the gripping end and the abutting end of the lever arm 1, allowing the operator to access the adjusting mechanism 3 without significantly changing their gripping posture while applying force at the gripping end. This reduces the range of motion required for adjustment and improves the convenience of specification adjustment. The adjusting mechanism 3 has the function of adapting to and locking nuts of different specifications, allowing the same gauge rod and support rod disassembly and assembly wrench to meet the disassembly and assembly needs of nuts of various specifications without the need to change to special tools for different specifications of nuts. At the same time, the locking function ensures that the adjusting mechanism 3 and the nut maintain a stable fit after adaptation, preventing relative sliding between the adjusting mechanism 3 and the nut due to fit gaps during operation, and ensuring the continuity of disassembly and assembly operations.

[0028] In another specific embodiment of this utility model, the fastening mechanism is specifically a bayonet 2, which adopts a concave structure and has multiple connected edges on its inner sidewall to form a polygonal space for accommodating and clamping the nut. This structure increases the contact area with the outer contour of the nut through multi-sided contact, improving the stability during clamping and preventing relative sliding between the nut and the bayonet 2 during operation, ensuring that the disassembly and assembly torque can be effectively transmitted to the nut. The inner sidewall of the bayonet 2 is provided with four edges, and the included angle between adjacent edges is limited to 90° to 135°. Starting from the connection between the bayonet 2 and the lever arm 1, the angles are 110°-130°, 100°-120°, and 90°-110° respectively. This gradient angle design can adapt to different specifications of square nuts, while making the contact pressure between each edge and the nut sidewall more uniform, reducing local stress concentration, extending the service life of the bayonet 2, and avoiding force deviation caused by improper angles preventing the bayonet 2 from fully fitting the nut. The length of each side of the inner wall of the clamp 2 is limited to 15mm to 25mm. This length range matches the side length of nuts commonly used in gauge rods and support rods on the market, ensuring that the nut can be fully accommodated within the polygonal space. This avoids the nut being exposed due to excessively short sides, affecting the clamping effect, or the clamp 2 being too large and unsuitable for confined working spaces due to excessively long sides. The thickness of the clamp 2 is set to 10mm to 20mm, which controls the overall weight while ensuring the structural strength of the clamp 2. This avoids the tool's portability being reduced due to excessive thickness, ensuring that operators can operate flexibly in confined spaces. In this specific embodiment, the clamp 2 is designed as a metal hook structure with an overall arc shape and a thickness of 15mm. The structural strength of the metal hook can accommodate larger disassembly and assembly torques, while the arc shape design reduces accidental collisions between the clamp 2 and surrounding components such as sleepers and gravel, further improving operational safety in confined working environments.

[0029] The adjusting mechanism 3 is designed as a flexible locking structure, which locks the disassembled part when the fastening mechanism cannot adapt to its structure. Its flexibility allows it to adapt to the irregular outer contour of the disassembled part, overcoming the limitation of the fastening mechanism which can only accommodate polygonal nuts. This expands the wrench's applicability and addresses special structural disassembled parts that may be encountered during maintenance. Specifically, the flexible locking structure is a chain with a length limited to 300mm to 500mm. The chain's flexibility allows for multi-angle winding around the disassembled part, ensuring a close fit during locking. Its length range covers disassembled parts of different sizes, preventing both insufficient length for winding larger parts and excessive length leading to redundant winding and operational inconvenience. In this specific embodiment, the chain length is 400mm. This length precisely covers the size requirements of most gauge rods and support rod nuts, preventing insufficient length for stable winding of larger nuts and avoiding redundant length causing chain entanglement and interference during operation, ensuring smooth locking operation.

[0030] The lever arm 1 is limited to a length of 450mm to 600mm. This length balances the applied torque and operating space, allowing for effortless operation by reducing the operator's effort while preventing the tool from being unable to rotate flexibly in confined spaces near sleepers and rubble due to an excessively long lever arm, thus ensuring adaptability to different workspaces. The adjustment mechanism 3 is detachably connected to the lever arm 1, facilitating individual replacement of the adjustment mechanism 3 when worn or damaged, eliminating the need to replace the entire wrench and reducing maintenance costs. Different types of flexible locking structures can be used to meet operational needs, enhancing tool versatility. The lever arm 1 has a circular cross-section with a diameter of 25mm to 35mm. This circular cross-section ensures more even force distribution on the operator's hand, improving grip comfort and preventing hand discomfort from sharp edges during prolonged operation. The diameter range also ensures that the lever arm 1 has sufficient bending strength, preventing it from bending easily under large assembly and disassembly torques, thus ensuring operational safety. In this specific embodiment, the lever arm 1 is made of metal, specifically a metal rod with a length of 500mm and a diameter of 30mm. The metal material can further enhance the durability of the lever arm 1, making it suitable for the frequent disassembly and assembly operation scenarios in line maintenance. In addition, the various parts of the wrench are made of recycled materials, which greatly reduces the manufacturing cost while ensuring structural performance.

[0031] The disassembly and assembly wrench provided by this utility model can be made from waste materials, saving production costs and having a simple overall structure. It is easy to implement and achieves good performance. It is lightweight, convenient, time-saving, and labor-saving. It can replace the crowbar used in the original operation, reducing the original operation mode that required multiple people to two people to work together. It optimizes the operation mode of disassembling the gauge rod and support rod nuts, improves the operation efficiency, and can fully meet the needs of daily adjustment of rail gap size. It is suitable for the routine operation needs of track work areas and maintenance personnel.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wrench for disassembling and assembling track gauge rods and support rods, characterized in that, include: The lever arm (1) has a gripping end at one end and an abutting end at the other end, which abuts against the part to be disassembled during use; The lever arm (1) is provided with a fastening mechanism for clamping the disassembled parts near the abutting end; Adjustment mechanism (3), which is connected to the middle of lever arm (1), is used to adapt and lock nuts of different specifications.

2. The track gauge rod and support rod disassembly and assembly wrench according to claim 1, characterized in that: The fastening mechanism is a bayonet (2), which is a concave structure with multiple connected edges on its inner sidewall to form a polygonal space for accommodating and clamping the nut.

3. The gauge rod and support rod disassembly and assembly wrench according to claim 2, characterized in that: The inner wall of the bayonet (2) has four sides, and the included angle between two adjacent sides is 90° to 135°.

4. A wrench for disassembling and assembling gauge rods and support rods according to claim 3, characterized in that: The included angles between the two adjacent sides are 110°-130°, 100°-120°, and 90°-110° respectively, starting from the connection between the bayonet (2) and the lever arm (1).

5. A wrench for disassembling and assembling gauge rods and support rods according to claim 2, characterized in that: The length of each side of the inner wall of the bayonet (2) is 15mm to 25mm.

6. A wrench for disassembling and assembling gauge rods and support rods according to claim 2, characterized in that: The thickness of the bayonet (2) is 10mm to 20mm.

7. A wrench for disassembling and assembling gauge rods and support rods according to claim 1, characterized in that: The adjustment mechanism (3) is a flexible locking structure, which locks the disassembled part when the fastening mechanism cannot adapt to the structure of the disassembled part.

8. A wrench for disassembling and assembling gauge rods and support rods according to claim 7, characterized in that: The flexible locking structure is a chain with a length of 300mm to 500mm.

9. A wrench for disassembling and assembling gauge rods and support rods according to claim 1, characterized in that: The length of the lever arm (1) is 450mm to 600mm.

10. A wrench for disassembling and assembling gauge rods and support rods according to claim 1, characterized in that: The adjustment mechanism (3) and the lever arm (1) are detachably connected, and the lever arm (1) has a circular cross-section with a diameter of 25mm to 35mm.

Images