Tool-free quick positioning and locking structure

Abstract

The utility model discloses a tool-free quick positioning and locking structure, and belongs to the technical field of garden machinery. The garden machine overcomes the defects that in the prior art, when different types of working heads of traditional garden machines are replaced, the replacement process is tedious, and efficiency is low. The main body structure of the tool comprises a working head, a locking bolt, a locking handle and a positioning pressing piece, the positioning pressing piece is provided with a positioning sleeve and a positioning hole, the positioning pressing piece is positioned with the working head through the positioning sleeve, the upper end of the locking bolt is connected with the locking handle, and the lower end of the locking bolt penetrates through the positioning hole and then is connected with the working head. The utility model is mainly applied to garden machinery products powered by gasoline engines or lithium batteries.

Description

Technical Field

[0001] The utility model belongs to the technical field of garden machinery, and in particular relates to a tool-free rapid positioning and locking structure. Background Art

[0002] Garden machinery is often used for clearing greenery on roads, pruning and shaping garden nurseries, flowers, and green belts. Due to the wide variety of work scenarios, such as mowing, hedge trimming, and tree pruning, operators need to frequently change different work heads. Existing work head replacement systems are cumbersome and inefficient, failing to meet market demand.

[0003] For example, the Chinese invention patent application publication number CN102241016A discloses a multi-joint robotic arm rapid positioning and locking device, which can quickly position and lock the multi-joint robotic arm by tightening a knob. However, its shortcomings are: there is no positioning mechanism, it cannot achieve rapid and accurate positioning, and it is prone to angle tilt defects. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tool-free rapid positioning and locking structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tool-free quick positioning and locking structure includes a working head, a locking bolt, a locking handle and a positioning pressure piece. The positioning pressure piece is provided with a positioning sleeve and a positioning hole. The positioning pressure piece is positioned with the working head through the positioning sleeve. The upper end of the locking bolt is connected to the locking handle, and the lower end of the locking bolt passes through the positioning hole and is connected to the working head.

[0007] Preferably, a screw and a return spring arranged on the screw are provided on the top of the locking handle, and the screw passes downward through the locking handle and is connected to the locking bolt.

[0008] Preferably, the locking handle is movably connected to the locking bolt.

[0009] Preferably, the lower end of the locking bolt is threadedly connected to the working head.

[0010] Preferably, the working head is any one of a gear box head, a pruning shear head and a saw head.

[0011] Preferably, the screw is a hexagon socket screw.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This utility model can achieve rapid positioning and locking without the need for additional tools, thus improving work efficiency and ease of use. At the same time, the positioning pressing piece ensures precise alignment through the cooperation of the positioning sleeve and the working head, while the combination of the locking bolt and the locking handle realizes a simple and effective tightening function.

[0014] 2. Set a screw and a return spring on the top of the locking handle. Pull the locking handle upward to disengage the locking handle from the locking bolt 2, so that the locking handle can be adjusted at any angle to avoid interference. The return spring can help the locking handle automatically reset, reducing the time for manual adjustment and further improving operational efficiency.

[0015] 3. The movable connection design between the locking handle and the locking bolt allows the user to perform the locking operation more easily while ensuring sufficient locking force, enhancing the overall stability and durability of the structure;

[0016] 4. The locking bolt and the working head are connected by thread, which not only simplifies the assembly process, but also ensures the reliability and stability of the connection, and can maintain good performance even in high-intensity working environments;

[0017] 5. The working head can be of various types (such as gear box head, pruning shear head or saw head, etc.). The locking structure has a wide range of applicability and can meet the needs of different scenarios, increasing the versatility and market competitiveness of the product;

[0018] 6. Use hexagon socket screws as fixings. Compared with other types of screws, hexagon socket screws provide better torque transmission capabilities, are less likely to slip, and also reduce the risk of tool damage, thus ensuring the long-term stability and reliability of the entire structure;

[0019] In summary, the utility model can quickly realize the rapid positioning and disassembly of different working heads, thereby reducing the purchase cost of users. At the same time, the screw with the handle can be quickly locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is an internal cross-sectional view of the present utility model;

[0022] Figure 3 It is a structural schematic diagram of the positioning tablet in the utility model.

[0023] In the figure: 1. Working head; 2. Locking bolt; 3. Locking handle; 4. Screw; 5. Positioning pressure piece; 6. Return spring; 7. Positioning sleeve; 8. Positioning hole. DETAILED DESCRIPTION

[0024] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0025] Example 1:

[0026] like Figure 1-3 As shown, a tool-free quick positioning and locking structure includes a working head 1, a locking bolt 2, a locking handle 3 and a positioning pressure plate 5. The positioning pressure plate 5 is provided with a positioning sleeve 7 and a positioning hole 8. The positioning pressure plate 5 is positioned with the working head 1 through the positioning sleeve 7. The upper end of the locking bolt 2 is connected to the locking handle 3, and the lower end of the locking bolt 2 passes through the positioning hole 8 and is connected to the working head 1.

[0027] Example 2:

[0028] A tool-free quick positioning and locking structure, which differs from Example 1 in that a screw 4 and a return spring 6 disposed on the screw 4 are provided on the top of the locking handle 3. The screw 4 passes downward through the locking handle 3 and is connected to the locking bolt 2. The screw 4 and the return spring 6 are provided on the top of the locking handle 3. When the locking handle 3 is pulled upward, the locking handle 3 is disengaged from the locking bolt 2, allowing the locking handle 3 to be adjusted at any angle to avoid interference. The return spring 6 can help the locking handle 3 to automatically reset, reducing the time for manual adjustment and further improving operational efficiency.

[0029] Furthermore, the locking handle 3 is movably connected to the locking bolt 2. The movable connection design between the locking handle 3 and the locking bolt 2 allows the user to perform the locking operation more easily while ensuring sufficient locking force, thereby enhancing the overall stability and durability of the structure.

[0030] Furthermore, the lower end of the locking bolt 2 is threadedly connected to the working head 1. The locking bolt 2 and the working head 1 are threadedly connected, which not only simplifies the assembly process, but also ensures the reliability and stability of the connection, and can maintain good performance even in a high-intensity working environment.

[0031] Furthermore, the working head 1 can be of various types, such as any one of a gear box head, a pruning shear head or a saw head, so that the utility model has a wide range of applicability, can meet the needs of different scenarios, and increase the versatility and market competitiveness of the product.

[0032] Furthermore, the screw 4 is a hexagon socket screw. Using a hexagon socket screw as a fixing part provides better torque transmission capability than other types of screws, is not easy to slip, and also reduces the risk of tool damage, thereby ensuring the long-term stability and reliability of the entire structure.

[0033] The working principle of this utility model is:

[0034] The positioning pressing piece 5 quickly finds the positioning hole 1 on the working head 1 (such as a gear box head, pruning shear head, saw head, etc.) by rotating the angle, so that the positioning sleeve 7 is inserted into the positioning hole 1 on the working head 1 to achieve positioning, and then the locking handle 3 is rotated to lock the locking bolt 2 and the working head 1, and finally the working head 1 is locked. When the locking handle 3 is rotated and interferes with other components, the locking handle 3 can be pulled upward to disengage the locking handle 3 from the locking bolt 2, so that the locking handle 3 can be adjusted at any angle to avoid interference.

Claims

1. A tool-free quick positioning and locking structure, characterized by: The invention comprises a working head (1), a locking bolt (2), a locking handle (3) and a positioning pressing piece (5); the positioning pressing piece (5) is provided with a positioning sleeve (7) and a positioning hole (8); the positioning pressing piece (5) is positioned with the working head (1) through the positioning sleeve (7); the upper end of the locking bolt (2) is connected to the locking handle (3); and the lower end of the locking bolt (2) passes through the positioning hole (8) and is connected to the working head (1).

2. The tool-free quick positioning and locking structure according to claim 1, characterized in that: A screw (4) and a return spring (6) arranged on the screw (4) are provided on the top of the locking handle (3); the screw (4) passes downward through the locking handle (3) and is connected to the locking bolt (2).

3. The tool-free quick positioning and locking structure according to claim 2, characterized in that: The locking handle (3) is movably connected to the locking bolt (2).

4. The tool-free rapid positioning and locking structure according to claim 1, characterized in that: The lower end of the locking bolt (2) is threadedly connected to the working head (1).

5. The tool-free rapid positioning and locking structure according to any one of claims 1 to 4, characterized in that: The working head (1) is any one of a gear box head, a pruning shear head and a saw head.

6. The tool-free rapid positioning and locking structure according to claim 2 or 3, characterized in that: The screw (4) is a hexagon socket screw.

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