Positioning pin for fork teeth of forklift
The design of hollow screws and internal positioning components solves the problem of difficult disassembly of forklift fork tooth positioning pins, enabling convenient replacement and improved stability, while reducing maintenance costs and production impact.
Patent Information
- Application Number
- CN202520316877.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing forklift fork tooth locating pins are prone to breakage or damage during long-term use, resulting in difficult disassembly, high maintenance costs, and reduced production efficiency.
The design employs hollow screws and internal positioning components, which are fixed in the positioning hole via threaded connection. Combined with limiting and elastic components, it ensures the stability of the positioning pin and facilitates easy replacement.
It improves the maintenance efficiency of the fork teeth, reduces maintenance costs, ensures that the fork teeth maintain a stable position during operation, and simplifies the disassembly and replacement process of the locating pin.
Smart Images
Figure CN223633049U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a forklift positioning pin manufacturing technical field especially relates to a forklift tine positioning pin. BACKGROUND
[0002] As common industrial handling equipment, the stability and durability of the tine directly affect the work efficiency and equipment safety. The tine is connected through the tine body and the connecting part of the forklift, and the positioning pin of the connecting part is used to ensure the correct position of the tine on the forklift. However, during long-term use, the positioning pin is easily affected by heavy load and long-term vibration, causing the positioning pin to break or be damaged. When it breaks, the tine usually needs to be disassembled for repair. If the positioning pin breaks and remains in the connecting hole, it may cause the forklift to stop, affecting the production efficiency of the enterprise.
[0003] The positioning pin of the tine of the forklift in the prior art is generally a solid pin or a rivet inserted directly into the connecting hole of the tine. When the positioning pin is damaged, it is often necessary to use professional tools to operate due to its close fit with the tine, and the remaining part of the broken positioning pin is difficult to remove. This not only increases the maintenance cost, but also may cause temporary failure of the forklift function, affecting the normal use of the forklift. In addition, the positioning pin installation method has strong fixation, which is not conducive to timely replacement and maintenance. Therefore, relevant technical personnel have proposed various improvement schemes, but most of them still have problems such as disassembly difficulty and inconvenient replacement of the positioning pin. Therefore, how to design a forklift tine positioning pin that is easy to disassemble and convenient to replace has become an important direction to improve the reliability of the forklift tine and reduce maintenance costs.
[0004] The utility model discloses a hollow screw and internally arranged positioning assembly, which solves the problem of difficult replacement of the traditional forklift tine positioning pin. This design not only improves the maintenance efficiency of the forklift tine, but also reduces the downtime caused by maintenance, ensures that the tine always maintains a stable position during work, and even if the positioning pin breaks, the maintenance operation can be simple and fast, meeting the high-efficiency maintenance needs in industrial environment. UTILITY MODEL CONTENTS
[0005] The utility model discloses a forklift tine positioning pin.
[0006] The utility model discloses an innovation point in that the positioning assembly is installed in the positioning hole in combination with the hollow screw. The hollow screw can be conveniently disassembled and replaced when the positioning assembly is damaged, and at the same time, the hollow screw can accommodate the positioning assembly and maintain the fixed position of the tine, avoiding the disassembly difficulty problem after the positioning assembly breaks, and reducing the production cost.
[0007] To achieve the above-mentioned utility model purposes, the technical scheme of the utility model is: a positioning pin for a fork tooth of a forklift, comprising a fork tooth body, characterized in that the fork tooth body comprises a lifting section horizontally arranged for carrying goods and a connecting section vertically arranged for connecting the forklift, the connecting section is provided with a positioning hole for positioning the position of the fork tooth on the forklift, a hollow screw is arranged in the positioning hole, the outer surface of the hollow screw is provided with external threads matched with the positioning hole, the hollow screw is fixed in the positioning hole through threaded connection, and a positioning assembly for limiting the fork tooth during installation is arranged in the hollow screw. The positioning assembly is integrated in the hollow screw and fixed in the positioning hole of the fork tooth through threaded connection, so that the stability and reliability of the fork tooth are ensured; the hollow screw structure facilitates disassembly and replacement when the positioning assembly is damaged, improves the maintenance efficiency and operation convenience of the fork tooth, and especially when the fork tooth positioning assembly is cracked, the hollow screw can accommodate the positioning assembly and keep the fixed position of the fork tooth, thereby avoiding the disassembly difficulty problem after the positioning assembly is cracked.
[0008] Further, the positioning assembly comprises a positioning pin, the positioning pin is arranged in the inner cavity of the hollow screw and extends to the outside of the hollow screw at both ends, the positioning pin comprises a large end and a small end, the small end of the positioning pin is provided with an axial groove and the both sides of the axial groove are provided with radially-through mounting holes, the diameter of the large end is larger than that of the small end, and a limiting piece for limiting the axial movement of the positioning pin is arranged in the mounting hole. The radially-through mounting holes arranged on the both sides of the axial groove effectively realize the limiting of the positioning pin and ensure the accurate positioning of the positioning pin during the installation of the fork tooth; the limiting piece arranged in the mounting hole further limits the axial movement of the positioning pin, so that the position deviation of the fork tooth during the working process is avoided and the stability of the fork tooth system is improved.
[0009] Further, the inner cavity of the hollow screw is provided with an elastic piece, the inner cavity of the hollow screw is further provided with a step surface perpendicular to the axis of the hollow screw, one end of the elastic piece abuts against the large end, and the other end abuts against the step surface of the inner cavity of the hollow screw. The inner cavity of the hollow screw is provided with an elastic piece and a step surface perpendicular to the axis of the hollow screw, so that the stability and shock resistance of the positioning pin are effectively ensured; the elastic piece can provide appropriate pressure to prevent the positioning pin from loosening due to vibration or impact during the working process, and further improve the firmness of the connecting part of the fork tooth.
[0010] Further, the elastic piece is a compression spring. Through the standardization of the compression spring design, the manufacturing and maintenance processes are simplified, and the procurement cost is reduced; through the linear elasticity of the compression spring, the pre-tightening force can be accurately controlled, the scene of frequent disassembly and assembly is adapted, and the overall reliability is improved; the use of the compression spring can effectively maintain the stability of the positioning pin and avoid the position deviation or loosening of the fork tooth due to external force during use, so as to ensure the operation safety and efficiency of the forklift.
[0011] Further, the limiting piece is a split pin or an elastic cylindrical pin. The limiting piece adopts a split pin or an elastic cylindrical pin, as a simple and efficient limiting mode, which can effectively prevent the displacement of the positioning pin in the installation process or the use process; the split pin or the elastic cylindrical pin is designed to facilitate assembly and replacement, and can provide sufficient stability to ensure the long-term reliability of the tine connecting part.
[0012] Further, the surface of the positioning pin is provided with a nitriding layer, and the thickness of the nitriding layer is 0.1-0.2 mm. A high-hardness layer is formed on the surface of the positioning pin through nitriding treatment, which significantly improves the wear resistance and corrosion resistance; the thickness of the additional 0.1-0.2 mm nitriding layer balances the cost and performance, and prolongs the service life.
[0013] The beneficial effects of the utility model are:
[0014] 1. In the utility model, the positioning assembly is integrated in the hollow screw, and is fixed in the positioning hole of the tine through threaded connection, so that the stability and reliability of the tine are ensured; when the positioning assembly is damaged, the hollow screw structure can be conveniently disassembled and replaced, so that the maintenance efficiency and operation convenience of the tine are improved; the limiting piece is arranged in the mounting hole, so that the position deviation of the tine in the working process is prevented, and the stability of the tine system is improved. The elastic piece is arranged in the inner cavity of the hollow screw, and the step surface perpendicular to the axis of the hollow screw is arranged, so that the stability and shock resistance of the positioning pin are effectively ensured.
[0015] 2. In the utility model, the mounting hole which is radially penetrated on the both sides of the axial groove is used to effectively realize the limiting of the positioning pin, and ensure the accurate positioning of the positioning pin in the tine installation process; the compression spring is used to effectively avoid the deviation or loosening of the tine position caused by external force in the use process, so as to ensure the operation safety and efficiency of the forklift; the linear elastic property of the compression spring facilitates the accurate control of the pre-tightening force, and improves the overall reliability; the limiting piece uses a split pin or an elastic cylindrical pin, which can effectively prevent the displacement of the positioning pin in the installation process or the use process; the split pin or the elastic cylindrical pin is designed to facilitate assembly and replacement, and ensure the long-term reliability of the tine connecting part; a high-hardness layer is formed on the surface of the positioning pin through nitriding treatment, which significantly improves the wear resistance and corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the overall schematic view of the utility model.
[0017] Figure 2 It is the local assembly explosion schematic view of the utility model.
[0018] Figure 3 It is the positioning assembly sectional view of the utility model.
[0019] In the diagram: 1. Lifting section; 2. Connecting section; 3. Positioning hole; 4. Hollow screw; 5. External thread; 6. Positioning component; 7. Positioning pin; 71. Large end; 72. Small end; 8. Axial groove; 9. Mounting hole; 10. Limiting component; 11. Elastic component; 12. Stepped surface. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0021] Example 1: As Figure 1 , 2 As shown in Figure 3, a positioning pin for forklift forks includes a forklift fork body. The forklift fork body includes a horizontally arranged lifting section 1 for carrying goods and a vertically arranged connecting section 2 for connecting to the forklift. The connecting section 2 has a positioning hole 3 for positioning the forklift forklift. A hollow screw 4 is provided in the positioning hole 3. The outer surface of the hollow screw 4 has an external thread 5 that matches the positioning hole 3. The hollow screw 4 is fixed in the positioning hole 3 by the threaded connection. A positioning component 6 for limiting the forklift forklift during installation is provided in the hollow screw 4. The positioning component 6 includes a positioning pin 7, which passes through the inner cavity of the hollow screw 4 and extends to the outside of the hollow screw 4 at both ends. The positioning pin 7 includes a large end 71 and a small end 72. The small end 72 of the positioning pin 7 has an axial groove 8 and radially penetrating mounting holes 9 on both sides of the axial groove 8. The diameter of the large end 71 is larger than the diameter of the small end 72. A limiting member 10 for limiting the axial movement of the positioning pin 7 is provided in the mounting hole 9. The hollow screw 4 has an elastic element 11 inside its cavity, and also a stepped surface 12 perpendicular to the axis of the hollow screw 4. One end of the elastic element 11 abuts against the large end 71, and the other end abuts against the stepped surface 12 inside the hollow screw 4. The elastic element 11 is a compression spring. The limiting element 10 is a cotter pin or a flexible cylindrical pin. The locating pin 7 has a nitrided layer on its surface, with a thickness of 0.1-0.2 mm.
[0022] The utility model discloses a working principle as follows: the hollow screw 4 surface outer thread 5 is aligned with the fork tooth connecting section position hole 3, and is screwed into the complete mesh, and is tightened using torque wrench, the compression spring is covered on the positioning pin 7, one end is pressed against the big end 71, the positioning pin 7 small end 72 is from the hollow screw 4 bottom and is inserted into the cavity, continues to advance the positioning pin 7 compression spring, until the positioning pin 7 big end 71 sticks to the hollow screw 4 bottom, and the compression spring is pressed against the step surface 12 in the hollow screw 4 cavity, adjust the positioning pin 7 small end 72 position, inserts the limiting piece 10 in the hole 9 on both sides of the axial groove 8, forms mechanical interlock, when the forklift is carried, the fork tooth bears the vibration, and the compression spring offsets the vibration energy through the periodic compression and resilience, reduces the positioning pin axial impact load, when the positioning pin 7 breaks or maintains replacement, uses the pointed nose pliers and pulls out the split pin or ejects the elastic cylindrical pin, extracts the broken positioning pin 7 and the residual spring from the hollow screw 4 outside, inserts the new positioning pin 7 into the hollow screw 4, and repeats the installation step, and ensures that the spring is pre-pressed to the working requirement, and manually shakes the fork tooth body and detects no abnormal movement, that is, completes maintenance replacement.
[0023] To sum up, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.
Claims
1. A positioning pin for a fork of a fork lift truck, comprising a fork body, characterized in that, The fork body comprises a lifting section horizontally arranged for carrying goods and a connecting section vertically arranged for connecting a forklift, the connecting section is provided with a positioning hole for positioning the position of the fork on the forklift, the positioning hole is provided with a hollow screw, the outer surface of the hollow screw is provided with external threads matched with the positioning hole, the hollow screw is fixed in the positioning hole through threaded connection, and the hollow screw is provided with a positioning assembly for limiting the installation of the fork.
2. The locating pin for a fork of a fork lift truck according to claim 1, characterized in that The positioning assembly comprises a positioning pin, the positioning pin is arranged in the inner cavity of the hollow screw and extends to the outside of the hollow screw at both ends, the positioning pin comprises a large end and a small end, the small end of the positioning pin is provided with an axial groove and both sides of the axial groove are provided with a radial through mounting hole, the diameter of the large end is larger than that of the small end, and the mounting hole is provided with a limiting piece for limiting the axial movement of the positioning pin.
3. The locating pin for a fork of a fork truck as set forth in claim 1, wherein The inner cavity of the hollow screw is provided with an elastic piece, and the inner cavity of the hollow screw is further provided with a step surface perpendicular to the axis of the hollow screw, one end of the elastic piece abuts against the large end, and the other end abuts against the step surface of the inner cavity of the hollow screw.
4. The locating pin for a fork carriage of a fork truck as set forth in claim 3, wherein The elastic piece is a compression spring.
5. The fork positioning pin for a fork truck as set forth in claim 2, wherein, The limiting piece is a split pin or an elastic cylindrical pin.
6. The fork positioning pin for a fork truck as set forth in claim 2, wherein, The surface of the positioning pin is provided with a nitriding layer, and the thickness of the nitriding layer is 0.1-0.2mm.