Labor-saving two-gear adjustable garden shears

Abstract

The utility model relates to the technical field of garden shears, and discloses labor-saving two-gear adjusting garden shears which comprise a driving handle, a driving gear is fixed to one side of the driving handle, a driving blade is rotationally connected to one side of the driving gear through a rotating shaft, and the bottom end of one side of the driving blade is further rotationally connected with one side of the driving handle through a rotating shaft. A locking assembly is arranged between the driving handle and the driving blade knife. The trigger seat, the trigger knob and the locking block are arranged between the driving handle and the driving blade knife, so that when the driving blade knife and the driven blade knife are closed, the locking block is clamped with the interior of a tooth groove of the driving gear to lock the driving gear, and the driving blade knife and the driven blade knife are kept in a closed state; when the scissors are used, the trigger knob can be shifted to enable the locking block to be separated from the driving gear, the driving gear is quickly unlocked, the driving blade and the driven blade can be normally opened and closed for shearing, the opening and closing process is simple, the safety of the scissors in a non-use state is guaranteed, and the scissors are convenient to store.

Description

Two-speed adjustable garden shears Technical Field

[0001] This utility model relates to the field of garden shearing technology, and in particular to two-speed adjustable garden shears for labor-saving operation. Background Technology

[0002] Garden pruning shears are a commonly used garden pruning tool, mainly used for pruning branches, such as diseased branches, weak branches, dense branches, and crossing branches, in order to maintain the beauty and healthy growth of trees.

[0003] The existing garden pruning shears (publication number: CN203251689U) have at least the following drawbacks: the device does not have a locking mechanism, which means that when the garden shears are not in use, the two blades may unfold under the interference of gravity or external forces, causing installation hazards and making normal transportation inconvenient. Therefore, this utility model is proposed. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a labor-saving two-level adjustable garden shear.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This labor-saving, two-speed adjustable garden shears includes an active handle. A drive gear is fixed to one side of the active handle. An active blade is rotatably connected to one side of the drive gear via a rotating shaft. The bottom end of one side of the active blade is also rotatably connected to one side of the active handle via a rotating shaft. A locking assembly is provided between the active handle and the active blade. The locking assembly includes a trigger seat rotatably connected to the outer wall of the drive gear shaft. A trigger knob is rotatably connected to one side of the active blade. A mating groove is formed on the outer edge of the trigger knob. A mating shaft that mates with the mating groove is fixed inside the trigger seat. A locking block is rotatably connected to one side of the active handle via a rotating shaft. One end of the locking block abuts against the tooth groove of the drive gear. A first torsion spring is rotatably connected to the rotating shaft of the locking block. One end of the first torsion spring abuts against one side of the locking block, and the other end of the first torsion spring is fixed to the side of the trigger seat away from the trigger knob.

[0007] As a further embodiment of this utility model, the outer wall of the trigger knob is symmetrically provided with two positioning grooves, and the outer wall of the drive gear shaft is also rotatably connected to a first protective shell. The trigger knob extends through to the outside of the first protective shell, and a spring rod is slidably provided on one side of the inner wall of the first protective shell, with one end of the spring rod abutting against the inside of the corresponding positioning groove.

[0008] As a further embodiment of this utility model, a driven handle is provided on the side of the active handle away from the active gear. A driven blade is integrally formed at the top of the driven handle. The driven blade and the active blade are rotatably connected via a rotating shaft. The first protective shell is also rotatably connected to the rotating shaft of the active blade.

[0009] As a further embodiment of this utility model, the bottom end of the driven blade is integrally formed with a driven rack, which meshes with the driving gear.

[0010] As a further embodiment of this utility model, the active blade and the outer wall of the rotating shaft of the active handle are rotatably connected to a second protective shell, and the active blade and the outer wall of the rotating shaft of the active handle are also rotatably connected to a second torsion spring. One end of the second torsion spring abuts against one side of the active blade, and the other end of the second torsion spring abuts against one side of the inner wall of the second protective shell.

[0011] As a further embodiment of this utility model, the active blade and the outer wall of the rotating shaft of the active handle are rotatably connected to a wedge block. A limiting groove is provided on one side of the active handle. The bottom end of the active blade is slidably disposed inside the limiting groove. The bottom end of the active blade also cooperates with the inclined surface of the wedge block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting a trigger seat, trigger knob, and locking block between the active handle and the active blade, when the active and driven blades are closed, the locking block engages with the tooth groove of the active gear, locking the active gear and keeping the active and driven blades in a closed state. When in use, the trigger knob can be turned to disengage the locking block from the active gear, quickly releasing the lock on the active gear, allowing the active and driven blades to open and close normally for cutting. The opening and closing process is simple, ensuring the safety of the scissors when not in use, and facilitating storage. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the two-level adjustable garden shears proposed in this utility model;

[0015] Figure 2 is a three-dimensional disassembled structural diagram of the two-level adjustable garden shears proposed in this utility model;

[0016] Figure 3 is a magnified schematic diagram of the partial three-dimensional structure of A in Figure 2;

[0017] Figure 4 is a three-dimensional disassembled structural diagram of the two-level adjustable garden shears proposed in this utility model;

[0018] Figure 5 is a magnified schematic diagram of the partial three-dimensional structure of B in Figure 4;

[0019] Figure 6 is a three-dimensional structural diagram of the first protective shell of the two-level adjustable garden shears proposed in this utility model.

[0020] In the diagram: 1. Active handle; 101. Active gear; 102. Active blade; 2. Trigger seat; 201. Trigger knob; 202. Mating groove; 203. Mating shaft; 204. Locking block; 205. First torsion spring; 206. Positioning groove; 207. First protective shell; 208. Spring rod; 3. Driven handle; 301. Driven blade; 302. Driven rack; 4. Second protective shell; 401. Second torsion spring; 5. Wedge block; 501. Limiting groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] As shown in Figures 1-4, the labor-saving two-speed adjustable garden shears include an active handle 1. An active gear 101 is fixed to one side of the active handle 1. An active blade 102 is rotatably connected to one side of the active gear 101 via a rotating shaft. The bottom end of one side of the active blade 102 is also rotatably connected to one side of the active handle 1 via a rotating shaft. A locking assembly is provided between the active handle 1 and the active blade 102. The locking assembly includes a trigger seat 2 rotatably connected to the outer wall of the rotating shaft of the active gear 101, and a trigger knob 20 rotatably connected to one side of the active blade 102. 1. A mating groove 202 is provided on the outer edge of the trigger knob 201. A mating shaft 203 that mates with the mating groove 202 is fixed inside the trigger seat 2. A locking block 204 is rotatably connected to one side of the active handle 1 via a rotating shaft. One end of the locking block 204 abuts against the tooth groove of the active gear 101. A first torsion spring 205 is rotatably connected to the rotating shaft of the locking block 204. One end of the first torsion spring 205 abuts against one side of the locking block 204, and the other end of the first torsion spring 205 is fixed to the side of the trigger seat 2 away from the trigger knob 201.

[0025] As shown in Figures 2-4, in this embodiment, two symmetrical positioning grooves 206 are formed on the outer wall of the trigger knob 201. A first protective shell 207 is rotatably connected to the outer wall of the drive gear 101 shaft. The trigger knob 201 extends through to the outside of the first protective shell 207. A spring rod 208 is slidably disposed on one side of the inner wall of the first protective shell 207. One end of the spring rod 208 abuts against the inside of the corresponding positioning groove 206. By turning the trigger knob 201 to rotate it, the mating shaft 203 is pushed out from the inside of the mating groove 202, thereby driving... The trigger seat 2 is pushed and rotated, which compresses the first torsion spring 205. The first torsion spring 205 applies elastic force to the locking block 204, causing the locking block 204 to rotate. This causes one end of the locking block 204 to disengage from the drive gear 101, thereby quickly releasing the lock on the drive gear 101. This allows the drive blade 102 to open and close normally for cutting. At this time, the mating shaft 203 enters the interior of the mating groove 202 in a symmetrical position, maintaining the position of the trigger knob 201. The opening and closing process is simple, ensuring the safety of the scissors when not in use, and facilitating storage.

[0026] As shown in Figures 2-4, in this embodiment, a driven handle 3 is provided on the side of the active handle 1 away from the active gear 101. A driven blade 301 is integrally formed at the top of the driven handle 3. The driven blade 301 and the active blade 102 are rotatably connected via a rotating shaft. The first protective shell 207 is also rotatably connected to the rotating shaft of the active blade 102. By utilizing the lever principle through the active handle 1 and the driven handle 3, a greater rotational force is applied to the driven blade 301 and the active gear 101, increasing the shearing strength of the active blade 102 and the driven blade 301, and achieving the first stage of labor-saving effect.

[0027] As shown in Figures 2-4, in this embodiment, the driven blade 301 has a driven rack 302 integrally formed at its bottom end. The driven rack 302 meshes with the driving gear 101. When the driving gear 101 rotates, it drives the driven rack 302 and the driving blade 102 to rotate and open and close with the driven blade 301, thereby achieving the second stage of labor-saving effect.

[0028] As shown in Figures 2-4, in this embodiment, the active blade 102 is rotatably connected to the outer wall of the shaft of the active handle 1 by a second protective shell 4. The active blade 102 and the outer wall of the shaft of the active handle 1 are also rotatably connected by a second torsion spring 401. One end of the second torsion spring 401 abuts against one side of the active blade 102, and the other end of the second torsion spring 401 abuts against one side of the inner wall of the second protective shell 4. By having one end of the second torsion spring 401 abut against one side of the active blade 102 and the other end of the second torsion spring 401 abut against one side of the inner wall of the second protective shell 4, the second torsion spring 401 can continuously apply elastic force to force the active blade 102 to rotate and separate from the driven blade 301. This eliminates the need for the user to manually open and close the active blade 102 and the driven blade 301, making it convenient for the user's cutting operation.

[0029] As shown in Figures 2-4, in this embodiment, the active blade 102 is rotatably connected to the outer wall of the rotating shaft of the active handle 1 by a wedge block 5. A limiting groove 501 is provided on one side of the active handle 1. The bottom end of the active blade 102 is slidably disposed inside the limiting groove 501. The bottom end of the active blade 102 also cooperates with the inclined surface of the wedge block 5. During the opening and closing process of the active blade 102 and the driven blade 301, the bottom end of the active blade 102 slides inside the limiting groove 501 and achieves a wedge-shaped cooperation with the wedge block 5, which concentrates and amplifies the transmitted force again, achieving the third stage of labor-saving effect.

[0030] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, when it is necessary to use scissors for cutting, the trigger knob 201 is turned to rotate, causing the mating shaft 203 to be pushed out from the inside of the mating groove 202, thereby driving the trigger seat 2 to be pushed and rotated. At the same time, the first torsion spring 205 is compressed, and the first torsion spring 205 applies elastic force to the locking block 204, causing the locking block 204 to rotate, so that one end of the locking block 204 is disengaged from the driving gear 101, thereby quickly releasing the lock on the driving gear 101, so that the driving blade 102 and the driven blade 301 can open and close normally for cutting. At this time, the mating shaft 203 enters the symmetrically positioned mating groove 202, maintaining the position of the trigger knob 201. Then, the operator holds the driving hand. Handle 1 and driven handle 3 begin the cutting operation. During the cutting process, the active handle 1 and driven handle 3 use the lever principle to apply rotational force to the driven blade 301 and the active gear 101. When the active gear 101 rotates, it drives the driven rack 302 and the active blade 102 to rotate and open and close with the driven blade 301. During this process, the bottom end of the active blade 102 slides inside the limiting slide groove 501 and achieves a wedge engagement with the wedge block 5, which concentrates and amplifies the transmitted force again, thereby achieving a triple force-saving effect. Through the combination of three force-saving structures with different principles, compared with traditional scissors, the force required by the user can be greatly reduced, and it can easily cut objects of various materials and thicknesses. Whether it is paper and cloth in daily life, or thin metal sheets and plastic sheets in industrial fields, it can efficiently complete the cutting task.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A labor-saving two-speed adjustable garden shears, including an active handle (1), characterized in that, A drive gear (101) is fixed to one side of the drive handle (1). A drive blade (102) is rotatably connected to one side of the drive gear (101) via a rotating shaft. The bottom end of one side of the drive blade (102) is also rotatably connected to one side of the drive handle (1) via a rotating shaft. A locking assembly is provided between the drive handle (1) and the drive blade (102). The locking assembly includes a trigger seat (2) rotatably connected to the outer wall of the rotating shaft of the drive gear (101). A trigger knob (201) is rotatably connected to one side of the drive blade (102). A trigger knob (201) is provided at the outer edge of the trigger knob (201). The mating slot (202) is fitted with a mating shaft (203) that mates with the mating slot (202). A locking block (204) is rotatably connected to one side of the active handle (1) via a rotating shaft. One end of the locking block (204) abuts against the tooth groove of the active gear (101). A first torsion spring (205) is rotatably connected to the rotating shaft of the locking block (204). One end of the first torsion spring (205) abuts against one side of the locking block (204), and the other end of the first torsion spring (205) is fixed to the side of the trigger seat (2) away from the trigger knob (201).

2. The labor-saving two-speed adjustable garden shears according to claim 1, characterized in that, The outer wall of the trigger knob (201) has two symmetrical positioning grooves (206). The outer wall of the drive gear (101) shaft is also rotatably connected to the first protective shell (207). The trigger knob (201) extends through to the outside of the first protective shell (207). A spring rod (208) is slidably provided on one side of the inner wall of the first protective shell (207). One end of the spring rod (208) abuts against the inside of the corresponding positioning groove (206).

3. The labor-saving two-speed adjustable garden shears according to claim 2, characterized in that, The active handle (1) is provided with a driven handle (3) on the side away from the active gear (101). A driven blade (301) is integrally formed at the top of the driven handle (3). The driven blade (301) and the active blade (102) are rotatably connected by a rotating shaft. The first protective shell (207) is also rotatably connected to the rotating shaft of the active blade (102).

4. The labor-saving two-speed adjustable garden shears according to claim 3, characterized in that, The driven blade (301) has a driven rack (302) integrally formed at its bottom end, and the driven rack (302) meshes with the driving gear (101).

5. The labor saving two-stage adjustment garden shears according to claim 4, characterized in that, The active blade (102) is rotatably connected to the outer wall of the shaft of the active handle (1) by a second protective shell (4). The active blade (102) is also rotatably connected to the outer wall of the shaft of the active handle (1) by a second torsion spring (401). One end of the second torsion spring (401) abuts against one side of the active blade (102), and the other end of the second torsion spring (401) abuts against one side of the inner wall of the second protective shell (4).

6. The labor saving two-stage adjustment garden shears according to claim 5, characterized in that, The active blade (102) is rotatably connected to the outer wall of the rotating shaft of the active handle (1) and a wedge block (5). A limiting groove (501) is opened on one side of the active handle (1). The bottom end of the active blade (102) slides inside the limiting groove (501). The bottom end of the active blade (102) also cooperates with the inclined surface of the wedge block (5).

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