Telescopic garden pruning device

Abstract

The utility model discloses a telescopic garden pruning device, belongs to the technical field of electric saws, and solves the problems of difficulty in garden pruning and inconvenience in carrying in the prior art. The device mainly comprises a telescopic rod structure, a trimming assembly is arranged on the telescopic rod structure, a telescopic rod comprises a pipe shell and a telescopic pipe structure, the pipe shell is in sliding connection with a telescopic pipe through a clamping plate, a transmission shaft I is arranged in the pipe shell, a rubber sleeve is arranged in the pipe shell, a bearing I is arranged in the rubber sleeve, and the transmission shaft I is sleeved with the bearing I; a bearing seat is arranged in the telescopic pipe, a bearing II is arranged on the bearing seat, a transmission shaft II is arranged on the bearing II, and the transmission shaft II is connected with the transmission shaft I. The pipe shell is matched with the telescopic pipe, and sliding connection is achieved through the clamping plate, so that the pruning device can be lengthened or shortened according to needs, and flexibility is improved; the telescopic transmission shaft can provide torque, and the practicability of the garden pruning electric saw is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric saws, in particular to a telescopic garden pruning device. Background Art

[0002] Garden machinery is mostly used for cleaning green plants on roads, pruning and shaping garden nurseries, flowers and green belts. In the prior art, the application with announcement number CN206165257U discloses a garden pruning electric saw with a protective device, which has a high safety factor and is easy to operate. However, due to the high growth of trees, ordinary length pruning electric saws cannot meet the pruning needs, and products that are too long are inconvenient to carry and transport. However, there is a lack of a retractable garden pruning device. Utility Model Content

[0003] The purpose of the utility model is to provide a retractable garden pruning device to solve the problems of difficulty in garden pruning and inconvenience in carrying in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A telescopic garden pruning device comprises a telescopic rod structure, on which a pruning assembly is arranged, the telescopic rod comprises a tube shell and a telescopic tube structure, the tube shell is slidably connected with the telescopic tube through a clamping plate, a transmission shaft I is arranged in the tube shell, a rubber sleeve is arranged in the tube shell, a bearing I is arranged in the rubber sleeve, and the bearing I is sleeved on the transmission shaft I; a bearing seat is arranged in the telescopic tube, a bearing II is arranged on the bearing seat, and the bearing II is sleeved on the transmission shaft II, and the transmission shaft II is connected to the transmission shaft I.

[0006] Furthermore, the clamping plate includes an upper pressing plate, a lower pressing plate and a locking handle, wherein the upper pressing plate and the lower pressing plate are connected by bolts, and the upper pressing plate and the lower pressing plate are locked and fixed to the telescopic tube by the locking handle. The position of the telescopic rod is fixed by the locking handle to lock the use length.

[0007] Furthermore, a cavity is provided in the tube shell, a reset spring is provided in the cavity, the reset spring is sleeved on the transmission shaft I, one end of the reset spring is connected to the rubber sleeve, and the other end is connected to the telescopic tube, which is helpful for automatic reset, reduces the workload of the operator, and improves work efficiency.

[0008] Furthermore, the transmission shaft I and the transmission shaft II are connected by a key; the key connection ensures effective transmission of torque and also facilitates installation and disassembly of the transmission shaft.

[0009] Furthermore, a guide flat key is provided at one end of the transmission shaft I, and a keyway is provided at one end of the transmission shaft II connected to the transmission shaft I, and the flat key and the keyway are limitedly matched, providing the functions of axial positioning and torque transmission, and ensuring the reliable connection between the transmission shaft I and the transmission shaft II.

[0010] Furthermore, a guide groove is provided at the connection between the upper pressing plate and the lower pressing plate, and a guide bar is provided on the telescopic tube, and the guide groove and the guide bar are slidably matched, thereby increasing the stability of the telescopic tube during the telescopic process, avoiding lateral shaking, and improving the stability of the overall structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model adopts the cooperation of the tube shell and the telescopic tube and realizes sliding connection through the clamping plate, so that the pruning device can be extended or shortened as needed, thereby improving flexibility; the telescopic transmission shaft can provide torque, thereby improving the practicality of the garden pruning electric saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] In the figure: 1. tube shell; 2. transmission shaft Ⅰ; 3. rubber sleeve; 4. bearing Ⅰ; 5. return spring; 6. clamping plate; 7. telescopic tube; 8. bearing seat; 9. trimming assembly; 10. upper pressure plate; 11. lower pressure plate; 12. guide strip; 13. locking handle; 14. bearing Ⅱ. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Embodiment 1: A retractable garden pruning device, such as Figure 1-Figure 2As shown, it includes a telescopic rod structure, on which a trimming assembly 9 is provided. The telescopic rod includes a tube shell 1 and a telescopic tube 7 structure. The tube shell 1 is slidably connected to the telescopic tube 7 through a clamping plate 6. A transmission shaft Ⅰ2 is provided in the tube shell 1. A rubber sleeve 3 is provided in the rubber sleeve 3. A bearing Ⅰ4 is provided in the transmission shaft Ⅰ2. A bearing seat 8 is provided in the telescopic tube 7. A bearing Ⅱ14 is provided on the bearing seat 8. The bearing Ⅱ14 is provided on the transmission shaft Ⅱ15. The transmission shaft Ⅱ15 is connected to the transmission shaft Ⅰ2. The trimming assembly 9 includes a saw chain and a guide rod. The guide rod is a part that supports the saw chain and guides its movement. The guide rod is made of wear-resistant alloy steel and has a round end to reduce the risk of accidental injury. The power generated by the motor is transmitted to the saw chain through the transmission shaft Ⅰ2 and the transmission shaft Ⅱ15. The present application adopts a slide design to enable the telescopic aluminum tube to be freely extended or shortened, while also ensuring the effective movement of the central transmission shaft.

[0019] Embodiment 2, a retractable garden pruning device, the clamping plate 6 includes an upper pressing plate 10, a lower pressing plate 11 and a locking handle 13, the upper pressing plate 10 and the lower pressing plate 11 are connected by bolts, the upper pressing plate 10 and the lower pressing plate 11 are locked and fixed to the telescopic tube 7 by the locking handle 13, and the telescopic tube 7 is lengthened or shortened by tightening or loosening the locking handle 13. The tube shell 1 is provided with a cavity, and a reset spring 5 is provided in the cavity. The reset spring 5 is sleeved on the transmission shaft I2, one end of the reset spring 5 is connected to the rubber sleeve 3, and the other end is connected to the telescopic tube 7. It is helpful for automatic reset, reduces the workload of the operator, and improves work efficiency. The transmission shaft I2 and the transmission shaft II15 are connected by a key; the key connection ensures the effective transmission of torque, and also facilitates the installation and removal of the transmission shaft. A guide flat key is provided at one end of the transmission shaft I2, and a key slot is provided at one end of the transmission shaft II15 connected to the transmission shaft I2, and the flat key and the key slot are limitedly matched. The functions of axial positioning and torque transmission are provided, ensuring the reliable connection between the transmission shaft I2 and the transmission shaft II15. A guide groove is provided at the connection between the upper pressing plate 10 and the lower pressing plate 11, and a guide bar 12 is provided on the telescopic tube 7, and the guide groove and the guide bar 12 are slidably matched. The stability of the telescopic tube 7 during the telescopic process is increased, lateral shaking is avoided, and the stability of the overall structure is improved. The rest is the same as in Example 1.

[0020] During installation, the utility model is installed with bearing I4 into rubber sleeve 3, and transmission shaft I2 is inserted, and then installed into tube shell 1 after assembly; then bearing II14 is installed into bearing seat 8, and transmission shaft II15 is inserted into bearing II14, and then installed into telescopic tube 7 after assembly; reset spring 5 is installed into the head of tube shell 1, transmission shaft II15 is key-connected with transmission shaft I2, and the assembled telescopic tube 7 is installed into tube shell 1 along guide strip 12, and tightening plate is installed at the connection between tube shell 1 and telescopic tube 7 for fastening. The telescopic tube 7 is lengthened or shortened by tightening or loosening locking handle 13.

[0021] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A telescopic garden pruning device, comprising a telescopic rod structure, on which a pruning assembly (9) is arranged, characterized in that: The telescopic rod structure comprises a tube shell (1) and a telescopic tube (7). The tube shell (1) is slidably connected to the telescopic tube (7) via a clamping plate (6). A transmission shaft I (2) is arranged in the tube shell (1). A rubber sleeve (3) is arranged in the tube shell (1). A bearing I (4) is arranged in the rubber sleeve (3). The bearing I (4) is sleeved on the transmission shaft I (2). A bearing seat (8) is arranged in the telescopic tube (7). A bearing seat (8) is arranged on the bearing seat (8). The bearing II (14) is sleeved on the transmission shaft II (15). The transmission shaft II (15) is connected to the transmission shaft I (2).

2. The retractable garden pruning device according to claim 1, characterized in that: The clamping plate (6) comprises an upper pressing plate (10), a lower pressing plate (11) and a locking handle (13); the upper pressing plate (10) and the lower pressing plate (11) are connected by bolts; the upper pressing plate (10) and the lower pressing plate (11) are locked and fixed to the telescopic tube (7) by the locking handle (13).

3. The retractable garden pruning device according to claim 1, characterized in that: A cavity is provided in the tube shell (1), and a return spring (5) is provided in the cavity.

4. The retractable garden pruning device according to claim 1, characterized in that: The transmission shaft I (2) and the transmission shaft II (15) are connected by a key.

5. The retractable garden pruning device according to claim 4, characterized in that: One end of the transmission shaft I (2) is provided with a guide flat key, and one end of the transmission shaft II (15) connected to the transmission shaft I (2) is provided with a key slot, and the flat key and the key slot are limitedly matched.

6. The retractable garden pruning device according to claim 2, characterized in that: A guide groove is provided at the connection between the upper pressing plate (10) and the lower pressing plate (11), a guide strip (12) is provided on the telescopic tube (7), and the guide groove and the guide strip (12) are slidably matched.

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