A trolley wheel positioning pin

Abstract

The utility model relates to trolley wheel positioning pin technology field discloses a trolley wheel positioning pin, including connecting seat, the surface fixed connection of connecting seat has gyro wheel support frame, the surface rotationally connected with trolley gyro wheel through connecting shaft of gyro wheel support frame.

Description

Technical Field

[0001] This utility model relates to the field of wheel accessories technology, specifically a positioning pin for a handcart wheel. Background Technology

[0002] A locating pin on a handcart wheel is a mechanical connecting element primarily used to fix and position two or more workpieces, ensuring the accuracy and stability of their relative positions. Locating pins are typically made of metal or plastic and have protrusions or grooves at one or both ends for engaging with holes in the workpiece to achieve fixation and positioning.

[0003] The existing wheel locating pins are not convenient for personnel to quickly install and remove, and they cannot be protected, making them easy to lose or be scratched and damaged. Therefore, this utility model provides a wheel locating pin for handwheels. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a positioning pin for a handcart wheel, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a locating pin for a handcart wheel, comprising a connecting seat, a roller support frame fixedly connected to the surface of the connecting seat, a handcart roller rotatably connected to the surface of the roller support frame via a connecting shaft, an irregularly shaped locating insertion hole provided on the inner side wall of the handcart roller, a locating pin limiting sleeve fixedly connected to the outer side of the roller support frame near the handcart, a compression spring fixedly connected to the inner bottom wall of the locating pin limiting sleeve, a telescopic rod fixedly connected to the end of the compression spring away from the locating pin limiting sleeve, an irregularly shaped locating pin fixedly connected to one end of the telescopic rod, and a pull rod fixedly connected to the other end of the telescopic rod.

[0008] Preferably, the contact surface between the connecting shaft and the handcart roller is provided with a bearing seat.

[0009] Preferably, a limiting stabilizing block is sleeved on the outside of the telescopic rod, and a limiting groove is formed on the surface of the telescopic rod.

[0010] Preferably, a reset spring is fixedly connected to the inner wall of the limiting groove, and a limit button is fixedly connected to the surface of the reset spring.

[0011] Preferably, the surface of the positioning pin limiting sleeve is provided with two positioning holes in sequence, and the limiting button is engaged with the positioning holes.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a positioning pin for a handcart wheel, which has the following advantages:

[0014] The wheel locating pin of this handcart wheel is designed through the cooperation of a connecting seat, roller support frame, connecting shaft, handcart roller, irregularly shaped locating hole, locating pin limit sleeve, compression spring, telescopic rod, irregularly shaped locating pin, pull rod, limit stabilizing block, limit groove, return spring, limit button, and locating locking hole. When the handcart roller needs to roll, the person pulls the pull rod to compress the compression spring, causing the irregularly shaped locating pin to disengage from the irregularly shaped locating hole and move backward until the limit button is locked into the outer locating locking hole for fixation. When the handcart wheel stops rolling, the locating pin can be used as needed. The specific operation is that the person presses the limit button. The button is compressed and reset by spring, causing it to disengage from the outer positioning hole and then engage with the front positioning hole through the extension force of the compressed spring. At this time, the irregularly shaped positioning pin engages with the irregularly shaped positioning hole on the surface of the trolley wheel for positioning. This facilitates the removal and insertion of the positioning pin as needed. The operation is simple, and the irregular shape increases the friction surface and enhances stability. It also protects the positioning pin, effectively preventing it from being exposed to the environment and easily scratched or worn when not in use. This allows for quick installation and removal of the positioning pin on the trolley wheel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0017] In the diagram: 1. Connecting seat; 2. Roller support frame; 3. Connecting shaft; 4. Handcart roller; 5. Irregular positioning socket; 6. Positioning pin limit sleeve; 7. Compression spring; 8. Telescopic rod; 9. Irregular positioning pin; 10. Pull rod; 11. Limiting stabilizing block; 12. Limiting groove; 13. Reset spring; 14. Limiting button; 15. Positioning clip hole. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-2This utility model provides a technical solution: a positioning pin for a handcart wheel, including a connecting seat 1. Through the coordinated arrangement of the connecting seat 1, roller support frame 2, connecting shaft 3, handcart roller 4, irregularly shaped positioning hole 5, positioning pin limiting sleeve 6, compression spring 7, telescopic rod 8, irregularly shaped positioning pin 9, pull rod 10, limiting stabilizing block 11, limiting groove 12, return spring 13, limiting button 14, and positioning slot 15, when the handcart roller 4 needs to roll, the person pulls the pull rod 10 to compress the compression spring 7, causing the irregularly shaped positioning pin 9 to disengage from the irregularly shaped positioning hole 5 and move backward until the limiting button 14 is reached. 4. The wheel 4 is fixed in the outer positioning hole 15. When the wheel stops rolling, the positioning pin can be used as needed. Specifically, the operator presses the limit button 14 to compress the return spring 13, causing it to disengage from the outer positioning hole 15. The extension force of the compression spring 7 then causes it to engage in the front positioning hole 15. At this time, the irregularly shaped positioning pin 9 engages in the irregularly shaped positioning hole 5 on the surface of the wheel 4 for positioning. This facilitates the operator to pull out and engage the positioning pin as needed. The operation is simple, and the irregular shape increases the friction surface and enhances stability. The positioning pin serves to protect the wheel trolley, effectively preventing it from being easily scratched and worn when exposed to the environment when not in use. This facilitates quick installation and removal of the positioning pin. A roller support frame 2 is fixedly connected to the surface of the connecting seat 1. A trolley roller 4 is rotatably connected to the surface of the roller support frame 2 via a connecting shaft 3. A shaped positioning hole 5 is provided on the inner wall of the trolley roller 4. A positioning pin limiting sleeve 6 is fixedly connected to the outer side of the roller support frame 2, near the trolley. A compression spring 7 is fixedly connected to the inner bottom wall of the positioning pin limiting sleeve 6, and the compression spring 7 is located away from the positioning pin. One end of the limiting sleeve 6 is fixedly connected to a telescopic rod 8, one end of the telescopic rod 8 is fixedly connected to a shaped positioning pin 9, and the other end of the telescopic rod 8 is fixedly connected to a pull rod 10. A bearing seat is provided on the contact surface between the connecting shaft 3 and the handcart roller 4. A limiting stabilizing block 11 is sleeved on the outside of the telescopic rod 8. A limiting groove 12 is opened on the surface of the telescopic rod 8. A return spring 13 is fixedly connected to the inner wall of the limiting groove 12. A limiting button 14 is fixedly connected to the surface of the return spring 13. Two positioning holes 15 are opened in sequence on the surface of the positioning pin limiting sleeve 6. The limiting button 14 is engaged with the positioning hole 15.

[0020] In summary, this handcart wheel positioning pin, through the coordinated arrangement of connecting seat 1, roller support frame 2, connecting shaft 3, handcart roller 4, irregular positioning hole 5, positioning pin limiting sleeve 6, compression spring 7, telescopic rod 8, irregular positioning pin 9, pull rod 10, limiting stabilizing block 11, limiting groove 12, return spring 13, limiting button 14, and positioning locking hole 15, allows the handcart roller 4 to move backward when the user pulls the pull rod 10 to compress the compression spring 7, causing the irregular positioning pin 9 to disengage from the irregular positioning hole 5 until the limiting button 14 engages with the outer positioning locking hole 15 for fixation. When the handcart wheel stops rolling, the positioning pin can be used as needed. The specific operation involves pressing the limit button 14 to compress the reset spring 13, causing it to disengage from the outer positioning hole 15. The spring 7 then extends and engages with the front positioning hole 15. At this point, the irregularly shaped positioning pin 9 engages with the irregularly shaped positioning insertion hole 5 on the surface of the handcart wheel 4 for positioning. This facilitates easy removal and insertion of the positioning pin as needed. The operation is simple, and the irregular shape increases the friction surface and enhances stability. It also protects the positioning pin, effectively preventing it from being exposed to the environment and prone to scratches and wear when not in use. This allows for quick installation and removal of the positioning pin on the handcart wheel.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly 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 utility model based on the specific circumstances.

[0022] In the description of this utility model, it should also be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0023] In the description of this utility model, it should also be noted that all standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning pin for a handcart wheel, comprising a connecting seat (1), characterized in that: A roller support frame (2) is fixedly connected to the surface of the connecting seat (1). A handcart roller (4) is rotatably connected to the surface of the roller support frame (2) via a connecting shaft (3). A shaped positioning hole (5) is provided on the inner side wall of the handcart roller (4). A positioning pin limiting sleeve (6) is fixedly connected to the outer side of the roller support frame (2) near the handcart. A compression spring (7) is fixedly connected to the inner bottom wall of the positioning pin limiting sleeve (6). A telescopic rod (8) is fixedly connected to the end of the compression spring (7) away from the positioning pin limiting sleeve (6). A shaped positioning pin (9) is fixedly connected to one end of the telescopic rod (8). A pull rod (10) is fixedly connected to the other end of the telescopic rod (8).

2. A positioning pin for a handcart wheel according to claim 1, characterized in that: The contact surface between the connecting shaft (3) and the handcart roller (4) is provided with a bearing seat.

3. A wheel locating pin for a handcart wheel according to claim 1, characterized in that: The telescopic rod (8) is fitted with a limiting stabilizing block (11), and a limiting groove (12) is formed on the surface of the telescopic rod (8).

4. A positioning pin for a handcart wheel according to claim 3, characterized in that: A reset spring (13) is fixedly connected to the inner wall of the limiting groove (12), and a limit button (14) is fixedly connected to the surface of the reset spring (13).

5. A positioning pin for a handcart wheel according to claim 4, characterized in that: The surface of the positioning pin limiting sleeve (6) is provided with two positioning holes (15) in sequence, and the limiting button (14) is engaged with the positioning holes (15).

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