Garden shears

Abstract

The utility model discloses a garden shears, including the knife seat and the gear drive assembly of knife seat upper setting, the convex base is shaped at the knife seat of umbrella wheel top in this scheme, and the thickness of this position is helped to increase to increase the convex base, and then makes the structural strength improve, and the shaft body of spire wheel, convex base of balance pull rod both ends are connected respectively can further improve the rigidity of knife seat whole, reduces the deformation phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of scissor devices, specifically garden scissors. Background Technology

[0002] Garden shears are a common household item, with common types including manual and electric. Taking the electric type as an example, it generally involves a motor working with a gear transmission assembly to drive the shear blades to open and close. The shear blades are usually mounted on a blade holder, which requires holes to be drilled inside to install various gears. This results in a poor structure of the blade holder, making it prone to deformation, which needs to be improved. Utility Model Content

[0003] To address at least one of the aforementioned technical deficiencies, this utility model provides the following technical solution:

[0004] This application discloses garden shears, including a blade holder and a gear transmission assembly mounted on the blade holder. The gear transmission assembly includes a disc gear, a bevel gear, and a spur gear. A mounting hole is provided at the tail end of the blade holder, and the bevel gear is rotatably connected to the mounting hole. A mounting hole is provided in the middle of the blade holder. The spur gear and the disc gear are respectively located at the two ends of the mounting hole. The shaft of the spur gear is fixed to the disc gear through the cavity of the mounting hole. The disc gear and the bevel gear are meshed and connected. The application also includes a balance rod located above the disc gear. A boss is formed on the blade holder above the bevel gear. The first end of the balance rod is rotatably connected to the shaft of the spur gear, and its tail end is fixed to the boss.

[0005] In this design, a boss is formed at the tool holder above the bevel gear. Adding the boss helps to increase the thickness at this position, thereby improving the structural strength. The two ends of the balance rod are connected to the shaft of the spur gear and the boss, respectively, which can further improve the overall rigidity of the tool holder and reduce deformation.

[0006] Furthermore, protruding bumps are formed on both sides of the bevel gear corresponding to the sides of the tool holder. The bumps and the two ends of the boss are connected as one piece. The bumps, the boss and the tool holder are integrally formed. The forming of the bumps helps to increase the width at this position, and also helps to increase the structural strength. The bumps and the boss are integrated to form a shoulder-like structure on the tool holder, which can further improve the structural strength of the tool holder at this position. The integral forming of the bumps, the boss and the tool holder helps to reduce the number of processes and facilitates assembly.

[0007] Furthermore, the balance rod is triangular in shape, with one corner rotatably connected to the shaft of the spur gear and the other two corners fixed to the boss. The triangular shape provides higher balance and structural strength, which helps to improve the overall rigidity of the tool holder.

[0008] Furthermore, the shaft of the spur gear is threadedly connected to the center hole of the disc gear. The shaft of the spur gear is rotatably connected to the first end of the balance rod through bearing one and rotatably connected to mounting hole two through bearing three. The shaft of the bevel gear is rotatably connected to mounting hole one through bearing two. Increasing the number of bearings helps to improve the stability of rotation and reduce phenomena such as tooth skipping.

[0009] Furthermore, a notch is provided on the upper wall of the mounting hole one, and the disc gear meshes with the bevel gear through the notch. The configuration of connecting the disc gear and the bevel gear through the notch helps to reduce the impact on the strength of the tool holder.

[0010] Furthermore, a mounting hole is formed at the tail end of the blade holder along the length direction, a mounting hole is formed at the middle of the blade holder along the thickness direction, and a connecting hole for connecting the shear blade is provided at the head end of the blade holder along the thickness direction.

[0011] Furthermore, the tail end peripheral wall of the tool holder is provided with a threaded surface for connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model improves the structure of tool holders, etc., by setting up protrusions, balance rods, etc. to improve the structural strength of the tool holder and reduce the deformation of the tool holder. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0015] Figure 1 This is a schematic diagram of the installation structure of the tool holder and the balance rod in Embodiment 1;

[0016] Figure 2 This is a schematic diagram of the installation structure of spur gears, bevel gears, and disc gears;

[0017] Figure 3 This is a diagram showing the location of the gap;

[0018] The attached figures are labeled as follows:

[0019] 1. Tool holder; 2. Balance rod; 3. Boss; 4. Bud; 5. Spur gear; 6. Disc gear; 7. Bearing 1; 8. Bearing 2; 9. Bevel gear; 10. Mounting hole 1; 11. Mounting hole 2; 12. Notch; 13. Connecting hole; 14. Bearing 3; 15. Threaded surface. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, in this example, garden shears include a blade holder 1 and a gear transmission assembly mounted on the blade holder 1. The gear transmission assembly includes a disc gear 6, a bevel gear 9, and a spur gear 5. The blade holder 1 has a mounting hole 10 formed along its length at the tail end. The bevel gear 9 is rotatably connected to the mounting hole 10. Specifically, the shaft of the bevel gear 9 is rotatably connected to the wall of the mounting hole 10 through a bearing 8. The number of bearings 8 can be selected as one or more as needed.

[0023] A mounting hole 2 11 is formed along the thickness direction at the middle of the tool holder 1. A spur gear 5 and a disc gear 6 are located at the two ends of the mounting hole 2 11, with the shaft of the spur gear 5 extending into the cavity of the mounting hole 2 11 and fixed to the disc gear 6. The shaft of the spur gear 5 is threadedly engaged with the center hole (i.e., the central hole) formed in the center of the disc gear 6. The shaft of the spur gear 5 is rotatably connected to the wall of the mounting hole 2 11 via a bearing 3 14. The number of bearings 3, whether single or multiple, is selected according to requirements.

[0024] The disc gear 6 meshes with the bevel gear 9. For example, the opening of the second mounting hole 11 at the top surface of the tool holder is flared, and a notch 12 is formed on the hole wall that connects with the top wall of the first mounting hole 10. The teeth on the bottom surface of the disc gear 6 mesh with the teeth of the bevel gear 9. When the bevel gear rotates, it synchronously causes the disc gear and the spur gear to rotate.

[0025] To improve the overall rigidity of the tool holder, a balance bar 2 is added in this example, such as... Figure 1 The triangular shape shown can also be replaced by a rectangular plate, a circular plate, or other irregular shapes. A protruding boss 3 is formed on the tool holder 1 above the bevel gear 9, increasing the thickness and strength at that location. The first end of the balance rod 2 is rotatably connected to the shaft of the spur gear 5. For example, the end of the shaft of the spur gear 5 protrudes from the center hole of the disc gear 6, extending into the hole formed at the corner of the balance rod 2 and forming a rotatable connection with the balance rod 2 through bearing 7. The two corners at the tail end of the balance rod 2 are fixed to the boss 3, such as with screws or bolts. The connection of the balance rod enhances the overall rigidity of the tool holder.

[0026] In addition, protrusions 4 can be formed on both sides of the bevel gear 9 corresponding to the sides of the tool holder 1. The protrusions 4 and the two ends of the protrusion 3 are connected as one piece. If the protrusions, protrusions and tool holder are formed as one piece, the protrusions 4 and protrusions 3 are connected as one piece to form a shoulder-like structure on the tool holder 1, which can increase the thickness and width of this position and improve the structural strength of the tool holder at this position.

[0027] To facilitate connection, a connecting hole 13 for connecting scissor blades can be formed along the thickness direction at the beginning of the blade holder 1, and a threaded surface 15 for connection can be formed on the peripheral wall of the end of the blade holder 1. The connecting hole facilitates the installation of scissor blades, and the threaded surface facilitates the connection with the housing of garden shears.

[0028] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A garden shears, comprising a shear holder (1) and a gear transmission assembly disposed on the shear holder (1), the gear transmission assembly comprising a disc gear (6), a bevel gear (9), and a spur gear (5), wherein a mounting hole (10) is provided at the tail end of the shear holder (1) along the length direction and the bevel gear (9) is rotatably connected to the mounting hole (10), and a mounting hole (11) is provided in the middle of the shear holder (1), wherein the spur gear (5) and the disc gear (6) are respectively disposed at the two ends of the mounting hole (11) and the shaft of the spur gear (5) is fixed to the disc gear (6) through the cavity of the mounting hole (11), and the disc gear (6) is meshed with the bevel gear (9), characterized in that, It also includes a balance rod (2) above the disc gear (6), a protrusion (3) formed at the tool holder (1) above the bevel gear (9), the first end of the balance rod (2) is rotatably connected to the shaft of the spur gear (5) and its tail end is fixed to the protrusion (3).

2. The garden shears as described in claim 1, characterized in that: The bevel gear (9) has protruding protrusions (4) on both sides corresponding to the sides of the tool holder. The protrusions are connected to the two ends of the protrusion seat as a whole. The protrusions, protrusion seats and tool holder are integrally formed.

3. The garden shears as described in claim 1, characterized in that: The balance rod (2) is triangular in shape. One corner of the balance rod (2) is rotatably connected to the shaft of the spur gear (5), and its other two corners are fixed to the boss (3).

4. The garden shears as described in claim 1, characterized in that: The shaft of the spur gear (5) is threadedly connected to the center hole of the disc gear (6). The shaft of the spur gear (5) is rotatably connected to the head end of the balance rod (2) through bearing one (7) and rotatably connected to mounting hole two (11) through bearing three (14). The shaft of the bevel gear (9) is rotatably connected to mounting hole one (10) through bearing two (8).

5. The garden shears as described in claim 1, characterized in that: A notch (12) is provided on the upper wall of the mounting hole (10), and the disc gear meshes with the bevel gear through the notch.

6. The garden shears as described in claim 1, characterized in that: The blade holder (1) has a mounting hole 1 (10) formed along the length direction at the tail end, a mounting hole 2 (11) formed along the thickness direction at the middle of the blade holder, and a connecting hole (13) for connecting the shear blades is provided along the thickness direction at the head end of the blade holder (1).

7. The garden shears as described in claim 1, characterized in that: The tail end peripheral wall of the tool holder (1) is provided with a threaded surface (15) for connection.

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