A portable pruning saw

Abstract

The utility model relates to the technical field of gardens and municipal administration, especially a pruning saw convenient to carry, connecting casing is connected with the end cap through the hinge rotation on the lateral wall of connecting casing, the handle is connected with the lateral wall of connecting casing, the starting switch is connected with the lateral wall of connecting casing, the handle is connected with the lateral wall of connecting casing, the utility model discloses a quick fixing structure is arranged in the pruning saw convenient to carry, and the rotating pressboard in quick fixing structure is manually rotated, and the saw blade can be fixed between the connecting link and the moving link through the transmission structure, thereby completing the replacement and fixing of the saw blade, so that the device can be disassembled from the device when using, and the pruning saw is convenient to carry, and when the saw blade is worn, the replacement of the saw blade is convenient, and the work of the staff is not affected.

Description

Technical Field

[0001] This utility model relates to the field of landscaping and municipal engineering technology, specifically a portable pruning saw. Background Technology

[0002] Gardeners must use garden saws to prune trees and remove unwanted parts. Garden saws are also essential for the daily maintenance of urban green spaces. As a tool frequently used by gardeners, garden saws bring them great convenience and make trees more aesthetically pleasing. In reality, when pruning trees, workers generally use hand-operated saw blades, which not only wastes a lot of physical strength but is also very inefficient. Even when using electric saws, the blade and body of most electric saws on the market are integrated, making them difficult to carry and operate, and workers are also prone to being scratched by the saw blade. Utility Model Content

[0003] The purpose of this invention is to provide a portable pruning saw to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A portable pruning saw includes a connecting housing, an end cap rotatably connected to the side wall of the connecting housing via a hinge, a handle connected to the side wall of the connecting housing, a start switch connected to the side wall of the connecting housing, a handle attached to the side wall of the connecting housing, a rechargeable battery connected to the end face of the connecting housing, a reciprocating moving structure connected to the inner cavity of the connecting housing, a quick-fixing structure connected to the reciprocating moving structure, and a saw blade connected to the quick-fixing structure.

[0006] The reciprocating moving structure includes a fixed connecting plate connected to the inner cavity of the connecting housing. A drive motor is connected to the side wall of the fixed connecting plate via a connecting seat. The drive end of the drive motor is connected to a drive rod via a coupling. A driven helical gear is meshed with the side wall of the drive rod via a drive helical gear. A rotating rod is connected to the center of the driven helical gear. One end of the rotating rod is connected to a rotating disk. A rotating pull rod is connected to the side wall of the rotating disk. One end of the rotating pull rod is connected to a moving slider. Connecting slide rails are symmetrically connected to the side wall of the fixed connecting plate and on both sides of the moving slider. Connecting sliders are connected to the connecting slide rails.

[0007] As a preferred embodiment of this utility model, the quick-fixing structure includes a connecting plate, the bottom of which is connected to a movable slider and a connecting slider. A movable connecting plate is connected to the side wall of the connecting plate via a spring. A limit guide post is provided on the side wall of the connecting plate corresponding to the movable connecting plate. A fixing pin is provided on the side wall of the connecting plate corresponding to the saw blade. A rotating rod is connected to the connecting plate. A connecting shaft is connected to the side wall of the rotating rod via a connecting block. A rotating pressure plate is connected to the connecting shaft on one side of the movable connecting plate. A rotating wrench is connected to the side wall of the rotating pressure plate.

[0008] In a preferred embodiment of this utility model, the storage battery is connected to the start switch via a wire in an electrical connection manner, the drive motor is connected to the start switch via a wire in an electrical connection manner, and the drive rod is connected to the fixed connecting plate via a bearing seat, wherein the drive rod and the bearing seat are connected in a rotatable connection manner.

[0009] In a preferred embodiment of this utility model, the rotating rod is connected to the fixed connecting plate through a bearing seat, wherein the connection between the rotating rod and the bearing seat is a rotatable connection, and the rotating turntable and the rotating pull rod are rotatably connected through a rotating shaft.

[0010] As a preferred embodiment of this utility model, the rotating pull rod and the movable slider are rotatably connected by a rotating shaft, and the fixed connecting plate is provided with a sliding groove corresponding to the movable slider, wherein the movable slider and the sliding groove are connected by a sliding connection.

[0011] As a preferred embodiment of this utility model, the connecting slider has a groove corresponding to the connecting slide rail, wherein the connecting slide rail and the groove are connected by a sliding connection, and the movable connecting plate has a connecting hole corresponding to the limiting guide post, wherein the limiting guide post and the connecting hole are connected by a sliding connection.

[0012] As a preferred embodiment of this utility model, the saw blade is provided with a connecting hole corresponding to the fixed pin, wherein the fixed pin and the connecting hole are fitted with a clearance fit; the movable connecting plate is also provided with a connecting hole corresponding to the fixed pin, wherein the fixed pin and the connecting hole are fitted with a clearance fit.

[0013] As a preferred embodiment of this utility model, the connecting plate and the rotating rod are rotatably connected by a rotating shaft. A sliding groove is provided on the rotating pressure plate and corresponding to the connecting shaft. The distance from the sliding groove to the back of the rotating pressure plate is greater than the distance from the sliding groove to the left side wall of the rotating pressure plate. The connection between the connecting shaft and the sliding groove is a sliding connection.

[0014] In this invention, the rotating pressure plate in the manually rotating quick-fixing structure can fix the saw blade between the connecting plate and the moving plate through the transmission structure, thereby completing the replacement and fixing of the saw blade. When the device is in use, the saw blade can be removed from the device for easy carrying of the pruning saw. At the same time, when the saw blade is worn, it is easy to replace the saw blade without affecting the work of the operator.

[0015] The drive motor in the reciprocating moving structure of this utility model can drive the saw blade to move back and forth through the transmission structure, which can automatically prune the branches and make manual work more labor-saving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0017] Figure 2 for Figure 1 Partial structural diagram;

[0018] Figure 3 This is a schematic diagram of the reciprocating moving structure of this utility model;

[0019] Figure 4 for Figure 3 Partial structural diagram;

[0020] Figure 5 This is a structural diagram of the quick-fixing structure of this utility model;

[0021] Figure 6 for Figure 5 A partial structural diagram.

[0022] In the diagram: 1. Connecting housing; 2. End cap; 3. Handle; 4. Start switch; 5. Handle; 6. Battery; 7. Reciprocating moving structure; 8. Quick-fixing structure; 9. Saw blade; 701. Fixed connecting plate; 702. Drive motor; 703. Drive rod; 704. Drive helical gear; 705. Driven helical gear; 706. Rotating rod; 707. Rotating turntable; 708. Rotating pull rod; 709. Moving slider; 710. Connecting slide rail; 711. Connecting slider; 801. Connecting plate; 802. Spring; 803. Moving connecting plate; 804. Limiting guide post; 805. Fixed locking post; 806. Rotating rod; 807. Connecting shaft; 808. Rotating pressure plate; 809. Rotating wrench. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] For an example, please refer to... Figures 1-6 This utility model provides a technical solution: a portable pruning saw, including a connecting housing 1, an end cap 2 rotatably connected to the side wall of the connecting housing 1 via a hinge, a handle 3 connected to the side wall of the connecting housing 1, a start switch 4 connected to the side wall of the connecting housing 1, a handle 5 connected to the side wall of the connecting housing 1, a rechargeable battery 6 connected to the end face of the connecting housing 1, a reciprocating moving structure 7 connected to the inner cavity of the connecting housing 1, a quick-fixing structure 8 connected to the reciprocating moving structure 7, and a saw blade 9 connected to the quick-fixing structure 8.

[0025] In this embodiment, reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The reciprocating moving structure 7 includes a fixed connecting plate 701, which is connected to the inner cavity of the connecting housing 1. A drive motor 702 is connected to the side wall of the fixed connecting plate 701 via a connecting seat. The drive end of the drive motor 702 is connected to a drive rod 703 via a coupling. A driven helical gear 705 is meshed with a drive helical gear 704 on the side wall of the drive rod 703. A rotating rod 706 is connected to the center of the driven helical gear 705. A rotating disk 707 is connected to one end of the rotating rod 706. A rotating pull rod 708 is connected to the side wall of the rotating disk 707. A movable slider 709 is connected to one end of the rotating pull rod 708. Connecting slide rails 710 are symmetrically connected to the side wall of the fixed connecting plate 701 and on both sides of the movable slider 709. Connecting sliders 711 are connected to the connecting slide rails 710.

[0026] Based on the above structure and the connection relationship of the above structure, the drive motor 702 is controlled to run by the start switch 4. When the drive end of the drive motor 702 rotates, it sequentially drives the drive rod 703, the drive helical gear 704, the driven helical gear 705, the rotating rod 706 and the rotating disk 707 to rotate. When the rotating disk 707 rotates, the moving slider 709 is driven to move back and forth through the rotating pull rod 708.

[0027] The battery 6 is electrically connected to the start switch 4 via wires. The drive motor 702 is also electrically connected to the start switch 4 via wires, allowing the start switch 4 to control the operation of the drive motor 702. The drive rod 703 is rotatably connected to the fixed connecting plate 701 via a bearing seat. The rotating rod 706 is also rotatably connected to the fixed connecting plate 701 via a bearing seat. The turntable 707 is rotatably connected to the rotating pull rod 708 via a rotating shaft. The rotating pull rod 708 is rotatably connected to the movable slider 709 via a rotating shaft. A groove is provided on the fixed connecting plate 701 corresponding to the movable slider 709. The movable slider 709 is slidably connected to the groove. A groove is provided on the connecting slider 711 corresponding to the connecting slide rail 710. The connecting slide rail 710 is slidably connected to the groove. When the drive rod 703 rotates, it can drive the movable slider 709 to move back and forth.

[0028] In this embodiment, reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The quick-fixing structure 8 includes a connecting plate 801. The bottom of the connecting plate 801 is connected to the movable slider 709 and the connecting slider 711. A movable connecting plate 803 is connected to the side wall of the connecting plate 801 via a spring 802. A limit guide post 804 is provided on the side wall of the connecting plate 801 and corresponding to the movable connecting plate 803. A fixing pin 805 is provided on the side wall of the connecting plate 801 and corresponding to the saw blade 9. A rotating rod 806 is connected to the connecting plate 801. A connecting shaft 807 is connected to the side wall of the rotating rod 806 via a connecting block. A rotating pressure plate 808 is connected to the connecting shaft 807 and located on one side of the movable connecting plate 803. A rotating wrench 809 is connected to the side wall of the rotating pressure plate 808.

[0029] Based on the above structure and the connection relationship of the above structure, by manually rotating the rotating pressure plate 808, a sliding groove is opened on the rotating pressure plate 808 and corresponding to the connecting shaft 807. The edge distance from the sliding groove to the back of the rotating pressure plate 808 is greater than the edge distance from the sliding groove to the left side wall of the rotating pressure plate 808. Under the condition that the connection method between the connecting shaft 807 and the sliding groove is a sliding connection, the rotating pressure plate 808 drives the moving connecting plate 803 to move on the limiting guide post 804 through the rotating rod 806 and the connecting shaft 807, thereby fixing the saw blade 9 between the connecting plate 801 and the moving connecting plate 803.

[0030] The movable connecting plate 803 has a connecting hole corresponding to the limiting guide post 804, and the connection between the limiting guide post 804 and the connecting hole is a sliding connection. The saw blade 9 has a connecting hole corresponding to the fixing post 805, and the connection between the fixing post 805 and the connecting hole is a clearance fit. The movable connecting plate 803 has a connecting hole corresponding to the fixing post 805, and the connection between the fixing post 805 and the connecting hole is a clearance fit. The connecting plate 801 and the rotating rod 806 are rotatably connected by a rotating shaft. The rotating pressure plate 808 has a sliding groove corresponding to the connecting shaft 807, and the distance from the sliding groove to the back of the rotating pressure plate 808 is greater than the distance from the sliding groove to the left side wall of the rotating pressure plate 808. The connection between the connecting shaft 807 and the sliding groove is a sliding connection. When the rotating pressure plate 808 is rotated, the saw blade 9 can be fixed between the connecting plate 801 and the movable connecting plate 803.

[0031] When using a portable pruning saw, first connect the device to the power supply to put it into operation. Manually rotate the rotating pressure plate 808. A sliding groove is provided on the rotating pressure plate 808 and corresponding to the connecting shaft 807. The distance from the sliding groove to the back of the rotating pressure plate 808 is greater than the distance from the sliding groove to the left side wall of the rotating pressure plate 808. Under the condition that the connecting shaft 807 and the sliding groove are connected by a sliding connection and the spring 802 is used, the connecting plate 801 and the movable connecting plate 803 are opened. Then, the saw blade 9 is placed between the connecting plate 801 and the movable connecting plate 803.

[0032] Then, by manually rotating the rotating pressure plate 808, a sliding groove is opened on the rotating pressure plate 808 and corresponding to the connecting shaft 807. The distance from the sliding groove to the back of the rotating pressure plate 808 is greater than the distance from the sliding groove to the left side wall of the rotating pressure plate 808. Under the condition that the connection between the connecting shaft 807 and the sliding groove is a sliding connection, the rotating pressure plate 808 drives the moving connecting plate 803 to move on the limiting guide post 804 through the rotating rod 806 and the connecting shaft 807, and fixes the saw blade 9 between the connecting plate 801 and the moving connecting plate 803, thereby completing the replacement and fixing of the saw blade 9.

[0033] The drive motor 702 is controlled by the start switch 4. When the drive end of the drive motor 702 rotates, it drives the drive rod 703 to rotate. The drive rod 703 drives the drive helical gear 704 to rotate. The drive helical gear 704 drives the driven helical gear 705 to rotate. The driven helical gear 705 drives the rotating rod 706 to rotate. The rotating rod 706 drives the rotating turntable 707 to rotate. When the rotating turntable 707 rotates, it drives the moving slider 709 to move back and forth through the rotating pull rod 708. When the moving slider 709 moves back and forth, it drives the saw blade 9 to move back and forth through the quick-fixing structure 8 to perform the tree branch pruning work.

[0034] The storage battery 6, starter switch 4, and drive motor 702 used in this utility model are all existing known electrical devices, and all can be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the storage battery 6, starter switch 4, and drive motor 702 will not be described in detail here.

[0035] 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 portable pruning saw, comprising a connecting housing (1), characterized in that: An end cap (2) is rotatably connected to the side wall of the connecting housing (1) via a hinge. A handle (3) is connected to the side wall of the connecting housing (1). A start switch (4) is connected to the side wall of the connecting housing (1). A handle (5) is connected to the side wall of the connecting housing (1). A rechargeable battery (6) is connected to the end face of the connecting housing (1). A reciprocating moving structure (7) is connected to the inner cavity of the connecting housing (1). A quick-fixing structure (8) is connected to the reciprocating moving structure (7). A saw blade (9) is connected to the quick-fixing structure (8). The reciprocating moving structure (7) includes a fixed connecting plate (701), which is connected to the inner cavity of the connecting housing (1). A drive motor (702) is connected to the side wall of the fixed connecting plate (701) via a connecting seat. The drive end of the drive motor (702) is connected to a drive rod (703) via a coupling. A driven helical gear (705) is meshed with the side wall of the drive rod (703) via a drive helical gear (704). A rotating rod (706) is connected to the center of the plate. One end of the rotating rod (706) is connected to a rotating turntable (707). A rotating pull rod (708) is connected to the side wall of the rotating turntable (707). One end of the rotating pull rod (708) is connected to a movable slider (709). Connecting slide rails (710) are symmetrically connected to the side wall of the fixed connecting plate (701) and to both sides of the movable slider (709). Connecting sliders (711) are connected to the connecting slide rails (710).

2. The portable pruning saw according to claim 1, characterized in that: The quick-fixing structure (8) includes a connecting plate (801), the bottom of which is connected to a movable slider (709) and a connecting slider (711). A movable connecting plate (803) is connected to the side wall of the connecting plate (801) by a spring (802). A limit guide post (804) is provided on the side wall of the connecting plate (801) and corresponding to the movable connecting plate (803). A fixing post (805) is provided on the side wall of the connecting plate (801) and corresponding to the saw blade (9). A rotating rod (806) is connected to the connecting plate (801). A connecting shaft (807) is connected to the side wall of the rotating rod (806) by a connecting block. A rotating pressure plate (808) is connected to the connecting shaft (807) and located on one side of the movable connecting plate (803). A rotating wrench (809) is connected to the side wall of the rotating pressure plate (808).

3. A portable pruning saw according to claim 2, characterized in that: The battery (6) is connected to the start switch (4) by a wire and the connection method is electrical connection. The drive motor (702) is connected to the start switch (4) by a wire and the connection method is electrical connection. The drive rod (703) is connected to the fixed connecting plate (701) by a bearing seat, wherein the drive rod (703) and the bearing seat are connected by a rotatable connection.

4. A portable pruning saw according to claim 2, characterized in that: The rotating rod (706) is connected to the fixed connecting plate (701) through a bearing seat, wherein the rotating rod (706) and the bearing seat are connected by a rotatable connection, and the rotating turntable (707) and the rotating pull rod (708) are rotatably connected through a rotating shaft.

5. A portable pruning saw according to claim 2, characterized in that: The rotating pull rod (708) and the movable slider (709) are rotatably connected by a rotating shaft. The fixed connecting plate (701) is provided with a sliding groove corresponding to the movable slider (709), wherein the movable slider (709) and the sliding groove are connected by a sliding connection.

6. A portable pruning saw according to claim 2, characterized in that: The connecting slider (711) has a groove corresponding to the connecting slide rail (710), wherein the connecting slide rail (710) and the groove are connected in a sliding connection. The movable connecting plate (803) has a connecting hole corresponding to the limiting guide post (804), wherein the limiting guide post (804) and the connecting hole are connected in a sliding connection.

7. A portable pruning saw according to claim 2, characterized in that: The saw blade (9) has a connecting hole corresponding to the fixed pin (805), wherein the fixed pin (805) and the connecting hole are fitted with a clearance fit. The movable connecting plate (803) also has a connecting hole corresponding to the fixed pin (805), wherein the fixed pin (805) and the connecting hole are fitted with a clearance fit.

8. A portable pruning saw according to claim 2, characterized in that: The connecting plate (801) and the rotating rod (806) are rotatably connected by a rotating shaft. The rotating pressure plate (808) is provided with a sliding groove corresponding to the connecting shaft (807). The distance from the sliding groove to the back of the rotating pressure plate (808) is greater than the distance from the sliding groove to the left side wall of the rotating pressure plate (808). The connecting shaft (807) and the sliding groove are connected by a sliding connection.

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