High branch electric chain saw with protection function
By using a micro motor to drive the threaded rod and threaded sleeve assembly to automatically adjust the transparent baffle, the problem of balancing protection and visibility during the use of high-branch electric chainsaws is solved, thereby improving operator safety and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-14
AI Technical Summary
Existing high-branch electric chainsaws fail to provide optimal protection for operators while also obstructing their field of vision.
It uses a micro motor to drive the threaded rod and threaded sleeve assembly, and automatically adjusts the opening and closing of the transparent baffle. Combined with the chute cleaning device, it achieves both operator protection and visibility.
It provides protection for the operator during the cutting process, maintains the operator's field of vision, enhances the stability and durability of the equipment, and reduces the burden of manual operation and the risk of wear and tear.
Smart Images
Figure CN224482264U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-branch electric chainsaw technology, and in particular relates to a high-branch electric chainsaw with protective function. Background Technology
[0002] A notable feature of high-branch chainsaws is their long handle design, which extends to higher positions. This allows users to trim branches at greater heights without the need for ladders or scaffolding, making the operation safer and more convenient.
[0003] A pruning saw with a protective device (publication number: CN208446138U) disclosed in the public notice includes a connecting rod and a motor and a chainsaw located at both ends of the connecting rod. The connecting rod is slidably connected to a protective sleeve. Two protective sleeves are provided, each slidingly connected to opposite side walls of the connecting rod along its length. One end of each protective sleeve is an opening for hand insertion, and a grip is provided inside the sleeve. A positioning block is fixedly installed on the outer wall of the protective sleeve, through which a positioning rod passes. Multiple positioning holes are provided on the side wall of the connecting rod, mate with the positioning rod, and are distributed along the length of the connecting rod. The positioning rod and the positioning holes are provided with fixing parts for securely inserting the positioning rod and the positioning holes, and the positioning rod and the positioning holes are detachably connected. This pruning saw facilitates the pruning of branches at different heights.
[0004] The aforementioned patent achieves the effect of pruning branches of different heights by using components such as protective sleeves and connecting rods in cooperation. However, it cannot better solve the problem of providing optimal protection for operators when using high-branch electric chainsaws without affecting their working vision. Utility Model Content
[0005] The purpose of this utility model is to provide a high-branch electric chainsaw with protective function. By using a shielding and protective device, it solves the problem of providing the operator with optimal protection when using the high-branch electric chainsaw, while not affecting the operator's field of vision.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a high-branch electric chainsaw with protective function, including a drive device, a handle fixedly connected to the side of the drive device, a connecting rod fixedly connected to one end of the drive device, a cutting device provided at one end of the connecting rod, and a shielding and protective device provided on the inner side of the connecting rod.
[0008] The shielding and protective device includes a miniature motor, one end of which is fixedly connected to the inner side of a connecting rod. A threaded rod is fixedly connected to the output shaft of the miniature motor. A threaded sleeve is threaded onto the circumferential surface of the threaded rod. A limit rod is fixedly connected to the circumferential surface of the threaded sleeve. A sliding groove is formed on the circumferential surface of the connecting rod. A sliding rod is fixedly connected to the circumferential surface of the threaded sleeve. A rotating shaft is rotatably connected to the circumferential surface of the connecting rod. A transparent baffle is fixedly connected to the circumferential surface of the rotating shaft. A connecting block is fixedly connected to the side of the transparent baffle. A connecting rope is fixedly connected to one end of the sliding rod, and one end of the connecting rope is fixedly connected to the side of the connecting block. The entire shielding and protective device design not only enhances the safety and protection of the equipment but also provides a flexible and efficient operating method through automated adjustment, ensuring optimal protection for the operator when using a high-branch electric chainsaw without obstructing their field of vision.
[0009] Furthermore, one end of the limiting rod is slidably connected to the inner side of the connecting rod, and there is a gap between the circumferential surface of the threaded sleeve and the inner side of the connecting rod. The sliding connection between the limiting rod and the connecting rod, and the gap between the threaded sleeve and the connecting rod, work together to ensure the stability, flexibility, and durability of the shielding and protective device, improving the smoothness of operation and the overall performance of the system.
[0010] Furthermore, the side of the sliding rod is slidably connected to the inner side of the slide groove, and a return torsion spring is fixedly connected to the circumferential surface of the rotating shaft. The cooperation between the sliding rod and the slide groove ensures the smooth movement of the transparent baffle, while the return torsion spring provides a restoring force to ensure that the transparent baffle can automatically return to its original position, reducing deviations caused by operational errors and external interference. This design enhances the system's stability, ease of operation, and durability, while also improving safety.
[0011] Furthermore, one end of the return torsion spring is fixedly connected to the circumferential surface of the connecting rod, and the initial state of the return torsion spring is a relaxed state. The design of the return torsion spring, especially the setting of the initial relaxed state, enables it to provide appropriate restoring force, ensuring that the equipment can automatically reset during operation, reducing the burden of manual operation, and preventing over-adjustment and positioning errors. The return torsion spring also has the functions of shock absorption, buffering, and enhancing the durability of the equipment, thereby improving the stability and reliability of the entire system.
[0012] Furthermore, a groove cleaning device is provided on the side of the sliding rod. The groove cleaning device includes a rotating shaft, the circumferential surface of which is rotatably connected to the side of the sliding rod. A fixed rod is fixedly connected to the circumferential surface of the rotating shaft, and a brush plate is fixedly connected to the side of the fixed rod. A brush is fixedly connected to the side of the brush plate. The function of the groove cleaning device is to automatically clean the groove on the connecting rod by driving the brush plate and brush through the rotating shaft, keeping the groove clean and unobstructed, which helps extend the service life of the sliding rod and reduces wear and malfunctions caused by dirt accumulation.
[0013] Furthermore, a high-strength torsion spring is fixedly connected to the circumferential surface of the rotating shaft, and one end of the high-strength torsion spring is fixedly connected to the side of the sliding rod. The function of the high-strength torsion spring in the chute cleaning device is to provide continuous torque to ensure the effective operation of the rotating shaft and the brush plate, so that the cleaning process can proceed smoothly, enhance the cleaning effect, ensure automatic reset, and improve the automation and long-term stability of the equipment.
[0014] Furthermore, the inner surface of the chute lies on the displacement trajectory of the brush. Aligning the inner surface of the chute with the trajectory of the brush ensures that the brush can accurately clean the surface of the chute, thereby improving cleaning efficiency, precision, and effectiveness, while also reducing the risk of wear and damage and extending the service life of the equipment.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model achieves its purpose through the coordinated operation of components such as a micro motor, a threaded rod, and a threaded sleeve. Activating the micro motor drives the threaded rod to rotate. The rotation of the threaded rod causes the threaded sleeve to move vertically under the constraint of a limiting rod. The vertical movement of the threaded sleeve causes a sliding rod to slide vertically within a groove. The vertical movement of the sliding rod causes a connecting rope to move vertically, which in turn causes a connecting block to move vertically. The vertical movement of the connecting block causes a transparent baffle to rotate and open via a pivot, providing some protection for the operator during the cutting process. This achieves optimal protection for the operator when using a high-speed electric chainsaw without obstructing their field of vision.
[0017] 2. This utility model achieves automatic cleaning of the sliding groove by using a micro motor, a threaded rod, and a brush in conjunction with other components. When the micro motor is activated, it drives the threaded rod to rotate. The rotation of the threaded rod causes the threaded sleeve to move vertically under the constraint of the limiting rod. This vertical movement of the threaded sleeve drives the sliding rod to move vertically, which in turn drives the rotating shaft to move vertically. The rotating shaft then drives the fixed rod to move vertically, which in turn drives the brush plate to move vertically. The brush's vertical movement cleans the inner surface of the sliding groove. This achieves automatic cleaning of the sliding groove on the connecting rod, keeping it clean and unobstructed, which helps extend the service life of the sliding rod and reduces wear and malfunctions caused by dirt accumulation.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the shielding and protective device of this utility model;
[0022] Figure 3 This is a schematic diagram of the chute cleaning device of this utility model;
[0023] Figure 4 For the present utility model Figure 2 A magnified structural diagram of A in the middle;
[0024] Figure 5 For the present utility model Figure 2 A magnified structural diagram of B in the diagram;
[0025] Figure 6 For the present utility model Figure 2 A magnified structural diagram of C.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Drive device; 2. Handle; 3. Connecting rod; 4. Cutting device; 5. Shielding and protective device; 6. Slide cleaning device; 51. Miniature motor; 52. Threaded rod; 53. Threaded sleeve; 54. Limiting rod; 55. Slide; 56. Sliding rod; 57. Rotating shaft; 58. Transparent baffle; 59. Connecting block; 510. Connecting rope; 511. Return torsion spring; 61. Rotating shaft; 62. Fixing rod; 63. Brush plate; 64. Brush; 65. High-strength torsion spring. Detailed Implementation
[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figure 1-6 This utility model is a high-branch electric chainsaw with protective function, including a drive device 1, a handle 2 fixedly connected to the side of the drive device 1, a connecting rod 3 fixedly connected to one end of the drive device 1, a cutting device 4 provided at one end of the connecting rod 3, and a shielding and protective device 5 provided on the inner side of the connecting rod 3.
[0030] The shielding and protective device 5 includes a micro motor 51, one end of which is fixedly connected to the inner side of the connecting rod 3. A threaded rod 52 is fixedly connected to the output shaft of the micro motor 51. A threaded sleeve 53 is threadedly connected to the circumferential surface of the threaded rod 52. A limit rod 54 is fixedly connected to the circumferential surface of the threaded sleeve 53. A sliding groove 55 is formed on the circumferential surface of the connecting rod 3. A sliding rod 56 is fixedly connected to the circumferential surface of the threaded sleeve 53. A rotating shaft 57 is rotatably connected to the circumferential surface of the connecting rod 3. A transparent baffle 58 is fixedly connected to the circumferential surface of the rotating shaft 57. A connecting block 59 is fixedly connected to the side of the transparent baffle 58. A connecting rope 510 is fixedly connected to one end of the sliding rod 56, and one end of the connecting rope 510 is fixedly connected to the side of the connecting block 59. The design of the entire shielding and protective device 5 not only enhances the safety and protection function of the equipment but also provides a flexible and efficient operating method through automated adjustment, ensuring optimal protection for the operator when using a high-branch electric chainsaw without obstructing their field of vision.
[0031] One end of the limiting rod 54 is slidably connected to the inner side of the connecting rod 3, and there is a gap between the circumferential surface of the threaded sleeve 53 and the inner side of the connecting rod 3. The sliding connection between the limiting rod 54 and the connecting rod 3 and the gap between the threaded sleeve 53 and the connecting rod 3 work together to ensure the stability, flexibility and durability of the shielding and protective device 5, and improve the smoothness of operation and the overall performance of the system.
[0032] The side of the sliding rod 56 is slidably connected to the inner side of the slide groove 55, and a return torsion spring 511 is fixedly connected to the circumferential surface of the rotating shaft 57. The cooperation between the sliding rod 56 and the slide groove 55 ensures the smooth movement of the transparent baffle 58, while the return torsion spring 511 provides a restoring force to ensure that the transparent baffle 58 can automatically return to its original position, reducing deviations caused by operational errors and external interference. This design enhances the system's stability, ease of operation, and durability, while also improving safety.
[0033] One end of the return torsion spring 511 is fixedly connected to the circumferential surface of the connecting rod 3, and the initial state of the return torsion spring 511 is relaxed. The design of the return torsion spring 511, especially the setting of the initial relaxed state, enables it to provide appropriate restoring force, ensuring that the equipment can automatically reset during operation, reducing the burden of manual operation, and preventing over-adjustment and positioning errors. The return torsion spring 511 also has the functions of shock absorption, buffering, and enhancing the durability of the equipment, improving the stability and reliability of the entire system.
[0034] A groove cleaning device 6 is provided on the side of the sliding rod 56. The groove cleaning device 6 includes a rotating shaft 61, the circumferential surface of which is rotatably connected to the side of the sliding rod 56. A fixing rod 62 is fixedly connected to the circumferential surface of the rotating shaft 61. A brush plate 63 is fixedly connected to the side of the fixing rod 62, and a brush 64 is fixedly connected to the side of the brush plate 63. The function of the groove cleaning device 6 is to automatically clean the groove 55 on the connecting rod 3 by driving the brush plate 63 and the brush 64 through the rotating shaft 61, keeping the groove 55 clean and smooth, which helps to extend the service life of the sliding rod 56 and reduce wear and malfunctions caused by dirt accumulation.
[0035] A high-strength torsion spring 65 is fixedly connected to the circumferential surface of the rotating shaft 61, and one end of the high-strength torsion spring 65 is fixedly connected to the side of the sliding rod 56. The function of the high-strength torsion spring 65 in the chute cleaning device 6 is to provide continuous torque to ensure the effective operation of the rotating shaft 61 and the brush plate 63, so that the cleaning process can proceed smoothly, enhance the cleaning effect, ensure automatic reset, and improve the automation and long-term stability of the equipment.
[0036] The inner side of the groove 55 lies on the displacement trajectory of the brush 64. Aligning the inner side of the groove 55 with the trajectory of the brush 64 ensures that the brush 64 can accurately clean the surface of the groove 55, thereby improving cleaning efficiency, precision, and effectiveness, while also reducing the risk of wear and damage and extending the service life of the equipment.
[0037] A specific application of this embodiment is as follows: The micro motor 51 is started, driving the threaded rod 52 to rotate. The rotation of the threaded rod 52 causes the threaded sleeve 53 to move vertically under the restriction of the limiting rod 54. The vertical movement of the threaded sleeve 53 causes the sliding rod 56 to slide vertically in the slide groove 55. The vertical movement of the sliding rod 56 causes the connecting rope 510 to move vertically. The vertical movement of the connecting rope 510 causes the connecting block 59 to move vertically. The vertical movement of the connecting block 59 causes the transparent baffle 58 to rotate and open through the rotating shaft 57, providing a certain degree of shielding for the operator during the cutting process. When the transparent baffle 58 loses tension, the reset torsion spring 511 drives the rotating shaft 57 to rotate and reset through its own torque. The reset of the rotating shaft 57 causes the transparent baffle 58 to reset.
[0038] The micro motor 51 is started, which drives the threaded rod 52 to rotate. The rotation of the threaded rod 52 causes the threaded sleeve 53 to move vertically under the restriction of the limiting rod 54. The vertical movement of the threaded sleeve 53 causes the sliding rod 56 to move vertically. The vertical movement of the sliding rod 56 causes the rotating shaft 61 to move vertically. The vertical movement of the rotating shaft 61 causes the fixed rod 62 to move vertically. The vertical movement of the fixed rod 62 causes the brush plate 63 to move vertically. The vertical movement of the brush plate 63 causes the brush 64 to move vertically. The vertical movement of the brush 64 cleans the inner surface of the slide groove 55. The strong torsion spring 65 uses its own torsion to make the brush 64 and the slide groove 55 in close contact.
[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A high-branch electric chainsaw with protective function, comprising a drive device (1), characterized in that: A handle (2) is fixedly connected to the side of the drive device (1), a connecting rod (3) is fixedly connected to one end of the drive device (1), a cutting device (4) is provided at one end of the connecting rod (3), and a shielding and protective device (5) is provided on the inner side of the connecting rod (3). The shielding and protective device (5) includes a micro motor (51), one end of which is fixedly connected to the inner side of the connecting rod (3). The output shaft of the micro motor (51) is fixedly connected to a threaded rod (52). A threaded sleeve (53) is threadedly connected to the circumferential surface of the threaded rod (52). A limit rod (54) is fixedly connected to the circumferential surface of the threaded sleeve (53). A sliding groove (55) is provided on the circumferential surface of the connecting rod (3). A sliding rod (56) is fixedly connected to the circumferential surface of the threaded sleeve (53). A rotating shaft (57) is rotatably connected to the circumferential surface of the connecting rod (3). A transparent baffle (58) is fixedly connected to the circumferential surface of the rotating shaft (57). A connecting block (59) is fixedly connected to the side of the transparent baffle (58). A connecting rope (510) is fixedly connected to one end of the sliding rod (56). One end of the connecting rope (510) is fixedly connected to the side of the connecting block (59).
2. A high-branch electric chainsaw with protective function according to claim 1, characterized in that, One end of the limiting rod (54) is slidably connected to the inner side of the connecting rod (3), and there is a gap between the circumferential surface of the threaded sleeve (53) and the inner side of the connecting rod (3).
3. A high-branch electric chainsaw with protective function according to claim 1, characterized in that, The side of the sliding rod (56) is slidably connected to the inner side of the sliding groove (55), and a reset torsion spring (511) is fixedly connected to the circumferential surface of the rotating shaft (57).
4. A high-branch electric chainsaw with protective function according to claim 3, characterized in that, One end of the reset torsion spring (511) is fixedly connected to the circumferential surface of the connecting rod (3), and the initial state of the reset torsion spring (511) is the relaxed state.
5. A high-branch electric chainsaw with protective function according to claim 1, characterized in that, The sliding rod (56) is provided with a chute cleaning device (6) on its side. The chute cleaning device (6) includes a rotating shaft (61). The circumferential surface of the rotating shaft (61) is rotatably connected to the side of the sliding rod (56). A fixing rod (62) is fixedly connected to the circumferential surface of the rotating shaft (61). A brush plate (63) is fixedly connected to the side of the fixing rod (62). A brush (64) is fixedly connected to the side of the brush plate (63).
6. A high-branch electric chainsaw with protective function according to claim 5, characterized in that, A powerful torsion spring (65) is fixedly connected to the circumferential surface of the rotating shaft (61), and one end of the powerful torsion spring (65) is fixedly connected to the side of the sliding rod (56).
7. A high-branch electric chainsaw with protective function according to claim 5, characterized in that, The inner side of the groove (55) is located on the displacement trajectory of the brush (64).