Mounting device for cotter pin

Abstract

The utility model relates to the field of tools, and provides a mounting device for a cotter pin. The mounting device for the cotter pin comprises a connecting rod; the fixing claw is mounted at one end of the connecting rod, and the fixing claw is suitable for abutting against the long pin tongue of the cotter pin; the movable claw is movably mounted on the connecting rod, an angle identification piece is rotatably arranged on the movable claw, and the movable claw is suitable for abutting against the edge of a short pin tongue of the cotter pin; in the relative rotation process of the fixed claw and the movable claw, the angle identification piece is used for identifying the relative deflection angle of the fixed claw and the movable claw. According to the mounting device for the cotter pin, the relative deflection angle of the fixed claw and the movable claw can be accurately controlled, so that it is ensured that the cotter pin can be bent according to the preset bending degree in the mounting process, and the mounting precision is improved; the operation process is simplified, the operation difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and provides a device for installing cotter pins. Background Technology

[0002] In the manufacturing and maintenance of rail vehicles, cotter pin assembly is an essential step. Traditional methods mainly rely on hand tools such as hammers, chisels, and pliers, which are cumbersome, inefficient, and prone to damaging the root and surface of the cotter pin.

[0003] When using a hammer and chisel to split cotter pins, it is difficult to precisely control the force applied by hand, which can easily cause excessive plastic deformation at the base of the cotter pin, resulting in cracks or damage. Using pliers to bend the pin tongue makes it difficult to ensure the surface of the cotter pin remains intact, and controlling the splitting angle is also challenging, easily leading to problems with the quality of cotter pin assembly.

[0004] These problems severely impact the production efficiency and reliability of rail vehicle products. Therefore, there is an urgent need for a new cotter pin assembly method that can reduce manual labor, improve assembly efficiency, avoid damage to the cotter pins, and ensure that the assembly quality meets standard requirements. Utility Model Content

[0005] This utility model provides an installation device for cotter pins to solve the defects of inconvenient cotter pin installation in related technologies.

[0006] This utility model embodiment provides a mounting device for cotter pins, comprising:

[0007] link;

[0008] A retaining claw is installed at one end of the connecting rod, and the retaining claw is adapted to abut against the long tongue of the cotter pin;

[0009] A movable pawl is movably mounted on the connecting rod, and an angle indicator is rotatably provided on the movable pawl. The movable pawl is adapted to abut against the edge of the short tongue of the cotter pin.

[0010] During the relative rotation of the fixed claw and the movable claw, the angle marker is used to indicate the relative deflection angle between the fixed claw and the movable claw.

[0011] According to one embodiment of the present invention, the movable claw includes:

[0012] A sliding sleeve is slidably mounted on the connecting rod, and the angle marker is mounted on the sliding sleeve;

[0013] A claw body is installed on the sliding sleeve, and the extending direction of the claw body is the same as the extending direction of the fixed claw.

[0014] According to one embodiment of the present invention, the angle marker includes:

[0015] An indicator plate having an angle indicator rod formed thereon, wherein the 0-degree indicator rod on the indicator plate is collinear with the axis of the connecting rod;

[0016] A first locking element is installed on the sliding sleeve. The indicator plate is adapted to be locked in a relative position with the sliding sleeve by the first locking element. The sliding sleeve is adapted to be locked in a relative position with the connecting rod by the first locking element.

[0017] According to one embodiment of the present invention, the indicator plate is arc-shaped, and a hollow area is formed on the indicator plate, and the angle indicator rod is formed in the hollow area.

[0018] According to one embodiment of the present invention, an anti-loosening element is provided between the first locking element and the sliding sleeve.

[0019] According to one embodiment of the present invention, the claw body is conical, and the cross-sectional area of ​​the claw body gradually decreases from the sliding sleeve to the direction away from the sliding sleeve.

[0020] According to one embodiment of the present invention, the fixing claw is conical, and the cross-sectional area of ​​the fixing claw gradually decreases from the sliding sleeve to the direction away from the sliding sleeve.

[0021] According to one embodiment of the present invention, a handle is provided at the end of the connecting rod opposite to the fixed claw.

[0022] According to one embodiment of the present invention, the surface of the handle is provided with an anti-slip structure.

[0023] According to one embodiment of the present invention, a second locking member is provided at the end of the handle, and the handle is adapted to lock its relative position with the connecting rod by means of the second locking member.

[0024] According to the cotter pin installation device provided in this embodiment, the operator can precisely control the relative deflection angle between the fixed claw and the movable claw by setting the angle indicator, thereby ensuring that the cotter pin can bend according to the predetermined bending degree during installation and improving installation accuracy. By integrating the fixed claw, movable claw, and angle indicator, the operation process is simplified and the operation difficulty is reduced. At the same time, it also reduces the need to use multiple tools in the traditional cotter pin installation process, improving work efficiency. Because the cotter pin installation process can be precisely controlled, problems such as cotter pin damage or improper installation due to improper operation are avoided, thereby enhancing operational safety. The design of this installation device is highly flexible and suitable for installing cotter pins of different specifications and models. By adjusting the distance between the fixed claw and the movable claw and the setting of the angle indicator, it can adapt to the needs of cotter pins of different sizes and shapes. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic front view of the cotter pin mounting device provided by this utility model.

[0027] Figure 2 This is a schematic top view of the cotter pin mounting device provided by this utility model.

[0028] Figure 3 This is a schematic perspective view of the cotter pin mounting device provided by this utility model.

[0029] Figure label:

[0030] 100. Linkage rod; 102. Fixed claw; 104. Movable claw; 106. Angle marker; 108. Sliding sleeve; 110. Claw body; 112. Indicator plate; 114. First locking element; 116. Handle; 118. Second locking element. Detailed Implementation

[0031] 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.

[0032] like Figures 1 to 3 As shown, this utility model embodiment provides a mounting device for cotter pins, comprising:

[0033] Linkage 100;

[0034] A retaining claw 102 is installed at one end of the connecting rod 100, and the retaining claw 102 is adapted to abut against the long pin tongue of the cotter pin;

[0035] The movable pawl 104 is movably mounted on the connecting rod 100. An angle indicator 106 is rotatably provided on the movable pawl 104. The movable pawl 104 is adapted to abut against the edge of the short pin tongue of the cotter pin.

[0036] During the relative rotation of the fixed claw 102 and the movable claw 104, the angle marker 106 is used to indicate the relative deflection angle between the fixed claw 102 and the movable claw 104.

[0037] According to the cotter pin installation device provided in this embodiment of the present invention, the operator can precisely control the relative deflection angle between the fixed claw 102 and the movable claw 104 by setting the angle indicator 106, thereby ensuring that the cotter pin can be bent according to the predetermined bending degree during installation and improving installation accuracy. By integrating the fixed claw 102, the movable claw 104 and the angle indicator 106 together, the operation process is simplified and the operation difficulty is reduced. At the same time, it also reduces the need to use multiple tools in the traditional cotter pin installation process, improving work efficiency. Because the cotter pin installation process can be precisely controlled, problems such as cotter pin damage or improper installation due to improper operation are avoided, thereby enhancing operational safety. The design of this installation device is highly flexible and suitable for the installation of cotter pins of different specifications and models. By adjusting the distance between the fixed claw 102 and the movable claw 104 and the setting of the angle indicator 106, it can adapt to the needs of cotter pins of different sizes and shapes.

[0038] Please continue reading Figures 1 to 3 The present invention relates to a cotter pin installation device, which aims to provide a tool capable of precisely controlling the deflection angle during cotter pin installation and ensuring correct installation of the cotter pin. The device mainly consists of a connecting rod 100, a fixed claw 102, a movable claw 104, and an angle marker 106.

[0039] The connecting rod 100 serves as the main structure of the entire installation device, connecting and supporting the fixed claw 102 and the movable claw 104. It possesses sufficient strength and rigidity to ensure that it will not deform or break during operation.

[0040] The retaining claw 102 is installed at one end of the connecting rod 100 and is designed with a mating surface that matches the long tongue of the cotter pin. Through the mating action of the retaining claw 102, one end of the cotter pin can be stably fixed, preventing it from moving or falling off during installation.

[0041] The movable claw 104 is movably mounted on the connecting rod 100 and has a certain degree of freedom relative to the fixed claw 102. The movable claw 104 is provided with an abutment surface that matches the edge of the short pin tongue of the cotter pin, which is used to apply the necessary pressure to the cotter pin during installation so that it bends correctly and is fixed in the desired position.

[0042] An angle indicator 106 is rotatably mounted on the movable jaw 104 to indicate the relative deflection angle between the fixed jaw 102 and the movable jaw 104 during their relative rotation. This design allows the operator to visually understand the degree of bending of the cotter pin during installation, thereby ensuring installation accuracy.

[0043] According to one embodiment of the present invention, the movable claw 104 includes:

[0044] The sliding sleeve 108 is slidably mounted on the connecting rod 100, and the angle marker 106 is mounted on the sliding sleeve 108;

[0045] The claw body 110 is installed on the sliding sleeve 108, and the extension direction of the claw body 110 is the same as the extension direction of the fixed claw 102.

[0046] In this embodiment of the utility model, the movable claw 104 is mainly composed of two parts: a sliding sleeve 108 and a claw body 110.

[0047] The sliding sleeve 108 is designed to slide along the connecting rod 100, allowing the movable pawl 104 to slide to the desired position under the guidance of the connecting rod 100. The design of the sliding sleeve 108 ensures the stability and accuracy of the movable pawl 104 during movement. Furthermore, an angle indicator 106 is mounted on the sliding sleeve 108. The angle indicator 106 can be in the form of a dial, pointer, digital display, etc., depending on the accuracy requirements of the application and user preferences.

[0048] The claw body 110 is fixedly mounted on the sliding sleeve 108, and its extension direction is consistent with the extension direction of the fixed claw 102. This design ensures that the movable claw 104 and the fixed claw 102 can work together during operation to effectively clamp the cotter pin. The shape and size of the claw body 110 can be customized according to specific application scenarios to meet different clamping or operation requirements.

[0049] Because the sliding sleeve 108 can slide precisely along the connecting rod 100, and the angle indicator 106 can accurately indicate the position and angle of the sliding sleeve 108, the user can precisely adjust the position and angle of the movable claw 104 as needed, thereby achieving precise clamping or operation of the cotter pin. The design of the sliding sleeve 108 ensures the stability of the movable claw 104 during movement, avoiding operational errors caused by shaking or displacement. At the same time, the cooperative work of the claw body 110 and the fixed claw 102 also improves the reliability and durability of the device.

[0050] According to one embodiment of the present invention, the angle marker 106 includes:

[0051] An indicator plate 112 is provided, and an angle indicator rod is formed on the indicator plate 112. The 0-degree indicator rod on the indicator plate 112 is collinear with the axis of the connecting rod 100.

[0052] The first locking member 114 is installed on the sliding sleeve 108. The indicator plate 112 is adapted to be locked in relative position with the sliding sleeve 108 by the first locking member 114. The sliding sleeve 108 is adapted to be locked in relative position with the connecting rod 100 by the first locking member 114.

[0053] In this embodiment of the invention, the angle indicator 106 not only provides a precise indication of the angle of the movable claw 104, but also ensures the stability of the relative positions between the sliding sleeve 108 and the connecting rod 100, and between the indicator plate 112 and the sliding sleeve 108.

[0054] The indicator plate 112 is the core component of the angle marker 106, on which multiple angle indicator bars (typically including a 0-degree indicator bar and other graduated indicator bars) are formed. These indicator bars can be physical protrusions, indentations, or marking lines, used to indicate the angle of the sliding sleeve 108 (and the claw body 110) relative to the axis of the connecting rod 100. In particular, the 0-degree indicator bar is designed to be collinear with the axis of the connecting rod 100, which provides the user with a clear reference point, allowing them to quickly and accurately determine the initial or reference angle of the movable claw 104.

[0055] The first locking element 114 is mounted on the sliding sleeve 108 and is used to lock the relative position of the indicator plate 112 and the sliding sleeve 108. This means that once the user adjusts the indicator plate 112 to the required angle and confirms that it is correct, they can use the first locking element 114 to fix the indicator plate 112 and prevent it from moving during subsequent operations. Similarly, the sliding sleeve 108 is also locked to its relative position with the connecting rod 100 by the first locking element 114 (or possibly another independent locking mechanism), ensuring that the movable claw 104 maintains a stable position during clamping or operation.

[0056] The angle indicator on the indicator plate 112 provides users with an intuitive and accurate angle indication, enabling them to easily determine the current angle of the movable claw 104. In particular, the collinear design of the 0-degree indicator and the axis of the connecting rod 100 provides users with a reliable reference point. The use of the first locking element 114 ensures the stability of the relative positions between the indicator plate 112 and the sliding sleeve 108, and between the sliding sleeve 108 and the connecting rod 100. This avoids angle errors caused by shaking or offset during operation, improving the accuracy and reliability of the device. While the locking mechanism ensures the stability of the relative position, it also allows users to easily unlock and adjust the position of the indicator plate 112 or the sliding sleeve 108 when needed. This design allows users to make flexible adjustments and operations according to actual needs.

[0057] According to one embodiment of the present invention, the indicator plate 112 is arc-shaped, and a hollow area is formed on the indicator plate 112, and the angle indicator rod is formed in the hollow area.

[0058] In this embodiment of the invention, the indicator plate 112 is designed to be arc-shaped with a hollowed-out area, and the angle indicator rod is cleverly formed within this hollowed-out area. This design not only enhances the aesthetics and practicality of the device, but also further improves the intuitiveness and accuracy of the angle indication.

[0059] The indicator panel 112 is designed in an arc shape, a shape choice that allows users to more intuitively understand changes in angle. The arc shape also makes the indicator panel 112 visually smoother and more harmonious, enhancing the overall aesthetics of the device.

[0060] The cutout area formed on the indicator plate 112 not only reduces the overall weight of the device but also provides users with a clear visual channel, allowing them to see the position of the angle indicator lever more intuitively. This design enables users to determine the angle of the movable claw 104 more quickly during operation, improving work efficiency.

[0061] The angle indicator is designed within the cutout area. This design not only saves space but also makes the angle indication more intuitive and accurate. Users can quickly determine the current angle of the movable claw 104 by observing the position of the angle indicator within the cutout area, thus enabling precise operation.

[0062] The arc-shaped design and the presence of the hollowed-out area make the indicator panel 112 more visually appealing and harmonious, while also reducing the overall weight of the device and enhancing its practicality. The arc-shaped design allows users to more intuitively understand angle changes, while the angle indicator rod formed within the hollowed-out area makes the angle indication more intuitive and accurate. This design greatly improves the user's efficiency and accuracy during work. Because the angle indication is more intuitive and accurate, users can quickly determine the angle of the movable claw 104, thus enabling precise operation. This not only improves work efficiency but also enhances the overall user experience.

[0063] According to one embodiment of the present invention, an anti-loosening element is provided between the first locking member 114 and the sliding sleeve 108.

[0064] In this embodiment of the utility model, in order to enhance the connection stability between the first locking member 114 and the sliding sleeve 108 and prevent loosening caused by vibration or external force during operation, an anti-loosening member is specially provided between the first locking member 114 and the sliding sleeve 108.

[0065] The main function of the anti-loosening component is to provide additional friction or a locking mechanism to prevent the first locking member 114 from loosening relative to the sliding sleeve 108 when subjected to external force. This ensures that the relative position between the indicator plate 112 and the sliding sleeve 108 remains stable, thereby ensuring the accuracy of the angle indication.

[0066] Anti-loosening components can take various forms, such as spring washers, double nuts, and locking pins. The design principle of these anti-loosening components is to prevent loosening by increasing friction or providing an additional locking mechanism. The specific type of anti-loosening component chosen depends on factors such as the actual application scenario, cost considerations, and user preferences.

[0067] During installation, the anti-loosening component must first be placed between the first locking component 114 and the sliding sleeve 108. Then, the indicator plate 112 is fixed to the sliding sleeve 108 by tightening the first locking component 114, ensuring the anti-loosening component is in effective working condition. During operation, the user should be careful not to overtighten the first locking component 114 to avoid damaging the anti-loosening component or the sliding sleeve 108.

[0068] The presence of the anti-loosening element provides additional friction or a locking mechanism, thereby enhancing the connection stability between the first locking element 114 and the sliding sleeve 108. This ensures that the relative position between the indicator plate 112 and the sliding sleeve 108 remains stable during operation. Due to the enhanced connection stability, the position of the angle indicator rod within the cutout area more accurately reflects the current angle of the moving claw 104. This improves the accuracy of angle indication, thereby increasing the user's efficiency and accuracy during operation. The presence of the anti-loosening element also reduces wear and damage caused by loosening, thus extending the service life of the entire device.

[0069] According to one embodiment of the present invention, the claw body 110 is conical, and the cross-sectional area of ​​the claw body 110 gradually decreases from the sliding sleeve 108 toward the direction away from the sliding sleeve 108.

[0070] In this embodiment of the invention, the claw body 110 is designed to be tapered, meaning that the cross-sectional area of ​​the claw body 110 gradually decreases from the sliding sleeve 108 toward the direction away from the sliding sleeve 108. This design improves the stability and reliability of the claw body 110 during operation.

[0071] The claw body 110 is designed to be tapered, meaning its cross-sectional area gradually decreases from the end of the sliding sleeve 108 towards the direction away from the sliding sleeve 108. This design allows the claw body 110 to fit more tightly against the cotter pin surface, thus improving stability. At the same time, the tapered design also helps reduce cotter pin damage or claw body 110 wear caused by excessive local pressure.

[0072] As the cross-sectional area of ​​the tapered claw 110 gradually decreases, it can fit more stably against the cotter pin during installation. This design allows the claw 110 to better adapt to cotter pins of different shapes and sizes, improving the versatility and practicality of the device. The tapered claw 110 design also helps to improve stability and reliability during operation.

[0073] The tapered claw 110 design allows it to fit more tightly against the cotter pin surface when engaging the cotter pin, thus improving stability. The tapered claw 110 design also contributes to improved stability and reliability during operation.

[0074] According to one embodiment of the present invention, the fixing claw 102 is conical, and the cross-sectional area of ​​the fixing claw 102 gradually decreases from the sliding sleeve 108 toward the direction away from the sliding sleeve 108.

[0075] In this embodiment of the invention, similar to the claw body 110, the fixing claw 102 is also designed to be tapered, meaning its cross-sectional area gradually decreases from the end adjacent to the sliding sleeve 108 towards the direction away from the sliding sleeve 108. This design not only enhances the fixing claw 102's ability to engage with the cotter pin, but also improves its stability and reliability during operation.

[0076] The tapered design of the retaining claw 102 means that its cross-sectional area gradually decreases in the direction away from the sliding sleeve 108. This design allows the retaining claw 102 to fit more tightly against the cotter pin surface when it is engaged with the cotter pin, thereby improving the stability of the cotter pin installation.

[0077] According to one embodiment of the present invention, a handle 116 is provided at one end of the connecting rod 100 away from the fixing claw 102; the surface of the handle 116 is provided with an anti-slip structure; a second locking member 118 is provided at the end of the handle 116, and the handle 116 is adapted to lock its relative position with the connecting rod 100 by the second locking member 118.

[0078] In this embodiment of the invention, a handle 116 is provided at the end of the connecting rod 100 away from the fixing claw 102. This not only facilitates user operation but also improves the safety and stability of operation. Simultaneously, the surface of the handle 116 is provided with an anti-slip structure, and a second locking member 118 is provided at the end of the handle 116 to lock the relative position of the handle 116 and the connecting rod 100.

[0079] The handle 116 is located at the end of the connecting rod 100 opposite to the fixed claw 102, providing a comfortable grip point for the user. This design makes it easier for the user to operate the entire device, improving the convenience and efficiency of operation.

[0080] To increase the friction of the handle 116 surface and prevent operational errors caused by slipping during use, the surface of the handle 116 is equipped with an anti-slip structure. This structure can be raised particles, grooves, or textures, designed to improve the stability and safety of the user's grip.

[0081] A second locking element 118 is provided at the end of the handle 116 to lock the relative position of the handle 116 and the connecting rod 100. This design ensures that the handle 116 will not loosen or fall off due to external force during operation, thus guaranteeing the stability and reliability of operation. At the same time, the second locking element 118 also allows the user to easily unlock and adjust the position of the handle 116 when needed to meet different operational requirements.

[0082] The handle 116 allows users to operate the entire device more easily, reducing physical exertion and improving convenience and efficiency. The anti-slip design increases friction on the handle 116 surface, preventing operational errors due to slippage. Simultaneously, the second locking element 118 ensures stable relative positioning between the handle 116 and the connecting rod 100, further enhancing operational safety and stability. The second locking element 118 not only guarantees stable relative positioning between the handle 116 and the connecting rod 100 but also allows users to easily unlock and adjust the position of the handle 116 when needed. This design allows users to flexibly adjust the position and angle of the handle 116 according to actual operational requirements, improving the device's versatility and practicality.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mounting device for cotter pins, characterized in that, include: Linkage (100); A fixing claw (102) is installed at one end of the connecting rod (100), and the fixing claw (102) is adapted to abut against the long tongue of the cotter pin; An active claw (104) is movably mounted on the connecting rod (100). An angle marker (106) is rotatably provided on the active claw (104). The active claw (104) is adapted to abut against the edge of the short tongue of the cotter pin. During the relative rotation of the fixed claw (102) and the movable claw (104), the angle marker (106) is used to mark the relative deflection angle between the fixed claw (102) and the movable claw (104).

2. The mounting device for cotter pins according to claim 1, characterized in that, The movable claw (104) includes: A sliding sleeve (108) is slidably mounted on the connecting rod (100), and the angle marker (106) is mounted on the sliding sleeve (108). The claw body (110) is installed on the sliding sleeve (108), and the extension direction of the claw body (110) is the same as the extension direction of the fixed claw (102).

3. The mounting device for cotter pins according to claim 2, characterized in that, The angle marker (106) includes: An indicator plate (112) is provided with an angle indicator rod, wherein the 0-degree indicator rod on the indicator plate (112) is collinear with the axis of the connecting rod (100); A first locking member (114) is installed on the sliding sleeve (108), and the indicator plate (112) is adapted to be locked in relative position with the sliding sleeve (108) by the first locking member (114), and the sliding sleeve (108) is adapted to be locked in relative position with the connecting rod (100) by the first locking member (114).

4. The mounting device for cotter pins according to claim 3, characterized in that, The indicator plate (112) is arc-shaped, and a hollow area is formed on the indicator plate (112), and the angle indicator rod is formed in the hollow area.

5. The mounting device for cotter pins according to claim 3, characterized in that, An anti-loosening element is provided between the first locking member (114) and the sliding sleeve (108).

6. The mounting device for cotter pins according to claim 2, characterized in that, The claw body (110) is conical, and its cross-sectional area gradually decreases from the sliding sleeve (108) away from the sliding sleeve (108).

7. The mounting device for cotter pins according to any one of claims 2 to 6, characterized in that, The fixing claw (102) is conical, and its cross-sectional area gradually decreases from the sliding sleeve (108) away from the sliding sleeve (108).

8. The mounting device for cotter pins according to any one of claims 1 to 6, characterized in that, The connecting rod (100) has a handle (116) at the end opposite to the fixed claw (102).

9. The mounting device for cotter pins according to claim 8, characterized in that, The surface of the handle (116) is provided with an anti-slip structure.

10. The mounting device for cotter pins according to claim 8, characterized in that, The end of the handle (116) is provided with a second locking member (118), and the handle (116) is adapted to lock its relative position with the connecting rod (100) by the second locking member (118).

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