Power switch box control mechanism

Abstract

The problem that in the prior art, a switch box control mechanism is low in reliability is solved. The utility model provides a power switch box control mechanism comprising a control unit which comprises a first operation part and a trigger part which are integrally formed. Wherein the triggering part comprises a triggering bracket and an elastic body; the elastic body comprises an elastic structure with a plurality of elastic arms arranged in a folded mode, one end of the elastic body is connected with the first operation part through a first bent body, and the other end of the elastic body is connected with the trigger support through a second bent body. The first operation part and the trigger part are of an integrated structure, so that the number of parts of the control structure is reduced, and the assembly efficiency is improved. Meanwhile, the triggering support is driven through step-by-step deformation of the multiple elastic arms, the overall elasticity and deformation quantity are larger, the structural strength of the elastic body is enhanced through the zigzag structure, and the elastic body is firmer and more reliable in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a control mechanism for a power switch box. Background Art

[0002] Existing garden tools, such as four-wheel electric tools, lawn mowers, etc., are mostly equipped with motor drives, and self-propelled tools also have walking motors. There are push rods and switch boxes at the top of these tools for easy operation by users.

[0003] Chinese Utility Model Patent CN20222350220.4 discloses a power switch box for an electric tool and the electric tool, which specifically discloses a control structure of the switch box, including a housing, a first operating member movably disposed vertically on the housing, a second operating member rotatably disposed on the housing, a trigger member movably disposed in the housing. The trigger member is adapted to move from a first working position to a second working position under the drive of the first operating member, and the trigger member is adapted to move from the second working position to a third working position under the drive of the second operating member. A trigger switch is fixedly disposed in the housing so that when the trigger member moves to the third working position, the trigger switch is closed and conducted.

[0004] The switch box with this structure effectively improves the safety of the switch box through the double locking structure of the first operating member and the second operating member, but its trigger key adopts a linear columnar structure with relatively small elastic deformation; and the first operating member and the trigger member adopt a split structure, which is also likely to result in a long assembly time and low reliability of the control system. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a control mechanism for a power switch box, which solves the problem of low reliability of the switch box control mechanism in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solution: A control mechanism for a power switch box includes a control unit, and the control unit includes a first operating portion and a trigger portion integrally formed; wherein the trigger portion includes a trigger bracket and an elastic body; the elastic body includes an elastic structure in which a plurality of elastic arms are arranged in a folded shape, one end of which is connected to the first operating portion through a first bending body, and the other end is connected to the trigger bracket through a second bending body.

[0007] Further, the plurality of elastic arms include a first elastic arm, a second elastic arm and a third elastic arm, and the first elastic arm and the second elastic arm are connected through a third bending body, and the second elastic arm and the third elastic arm are connected through a fourth bending body.

[0008] Furthermore, the thicknesses of the first bending body and the second bending body are both smaller than the thicknesses of the plurality of elastic arms.

[0009] Furthermore, the thicknesses of the third bent body and the fourth bent body are both smaller than the thicknesses of the plurality of elastic arms.

[0010] Further, the extending direction of the second bent body forms an angle of 60°-70° with the moving direction of the trigger bracket.

[0011] Further, the bending angle of the third bent body and / or the fourth bent body is 35°-45°.

[0012] Principle of the present utility model:

[0013] The power switch box includes a housing, in which a control unit and a second operation part are installed. The control unit includes a first operation part and a trigger part formed integrally, and the trigger part further includes a trigger bracket and an elastic body formed integrally. The second operation part abuts against the end of the trigger bracket, and a travel switch is arranged at the front end of the trigger bracket. When the trigger part and the second operation part act simultaneously, the trigger bracket abuts against the travel switch to achieve the effect of controlling the opening or closing of the lawn mower. The elastic body, as a key component, plays a crucial role. It not only needs to have good elasticity to cope with various operating forces, but also needs to have sufficient structural strength to ensure the stability of long-term use. In this case, the elastic body is integrally in a zigzag structure, and is arranged in a folded shape by three elastic arms, namely a first elastic arm, a second elastic arm and a third elastic arm. The third elastic arm is connected to the first operation part through a first bent body, the first elastic arm is connected to the trigger bracket through a second bent body, and the first elastic arm and the second elastic arm are connected through a third bent body, and the second elastic arm and the third elastic arm are connected through a fourth bent body; thus forming a stable and flexible elastic structure.

[0014] Compared with the prior art, the present utility model has the following beneficial effects: The first operation part and the trigger part adopt an integral structure, which reduces the number of parts of the control structure, simplifies the assembly process, improves the assembly efficiency, and this compact structure also helps to improve the overall stability of the switch box. At the same time, the zigzag elastic body structure is adopted, and the trigger bracket is driven by the progressive deformation of multiple elastic arms. The overall elasticity and deformation amount are larger, and the zigzag structure also enhances the structural strength of the elastic body, making it more firm and reliable during use. Description of the drawings

[0015] Figure 1 Schematic diagram of the present utility model installed in the switch box;

[0016] Figure 2 First perspective schematic diagram of the control mechanism of the present utility model;

[0017] Figure 3 Second perspective schematic diagram of the control mechanism of the present utility model.

[0018] In the figure: 110 housing, 120 first operating part, 130 second operating part, 200 triggering part, 210 triggering bracket, 220 elastic body, 221 first elastic arm, 222 second elastic arm, 223 third elastic arm, 231 first bending body, 232 second bending body, 233 third bending body, 234 fourth bending body. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] As shown in the attached Figures 1 to 3 figure, the power switch box control mechanism of the present invention includes a control unit, and the control unit includes a first operating part 120 and a triggering part 200 formed integrally; wherein the triggering part 200 includes a triggering bracket 210 and an elastic body 220; the elastic body 220 includes an elastic structure in which a plurality of elastic arms are arranged in a folded shape, one end of which is connected to the first operating part 120 through a first bending body 231, and the other end is connected to the triggering bracket 210 through a second bending body 232.

[0021] In specific applications, the power switch box includes a housing 110, and a control unit and a second operating part 130 are installed in the housing 110. The control unit includes a first operating part 120 and a triggering part 200 formed integrally, and the triggering part 200 further includes a triggering bracket 210 and an elastic body 220 formed integrally. The second operating part 130 abuts against the end of the triggering bracket 210, and a travel switch is arranged at the front end of the triggering bracket 210. When the triggering part 200 and the second operating part 130 act simultaneously, the triggering bracket 210 abuts against the travel switch to achieve the effect of controlling the opening or closing of the lawn mower. The elastic body 220, as a key component, plays a crucial role. It not only needs to have good elasticity to cope with various operating forces, but also needs to have sufficient structural strength to ensure the stability of long-term use. In this case, the elastic body 220 is integrally in a "zigzag" structure, and is composed of three elastic arms arranged in a folded shape, namely the first elastic arm 221, the second elastic arm 222 and the third elastic arm 223. The third elastic arm 223 is connected to the first operating part 120 through the first bending body 231, the first elastic arm 221 is connected to the triggering bracket 210 through the second bending body 232, and the first elastic arm 221 and the second elastic arm 222 are connected through the third bending body 233, and the second elastic arm 222 and the third elastic arm 223 are connected through the fourth bending body 234; thus forming a stable and flexible elastic structure.

[0022] In this case, the first operation part 120 and the trigger part 200 adopt an integrated structure, which reduces the number of components of the control structure, simplifies the assembly process, and improves the assembly efficiency. This compact structure also helps to enhance the overall stability of the switch box. At the same time, the "zigzag" elastomer 220 structure is adopted, and the trigger bracket 210 is driven through the gradual deformation of multiple elastic arms. The overall elasticity and deformation amount are larger, and the "zigzag" structure also enhances the structural strength of the elastomer 220, making it more firm and reliable during use.

[0023] Furthermore, the thicknesses of the first bent body 231 and the second bent body 232 are both smaller than the thicknesses of the multiple elastic arms, and the thicknesses of the third bent body 233 and the fourth bent body 234 are both smaller than the thicknesses of the multiple elastic arms. This structure enables the bent bodies to deform more easily when subjected to external forces, thereby better absorbing and dispersing the impact force. Since the thicknesses of the bent bodies are relatively thin, they will deform first when subjected to external forces, thus playing a buffering role. This buffering effect helps to reduce the direct impact of external forces on the elastic arms and the entire elastomer 220, protecting the elastomer 220 from damage. At the same time, the relatively thin bent bodies also make the elastomer 220 more flexible as a whole, capable of better adapting to various operating forces and frequencies, and reducing the hysteresis effect caused by inertia.

[0024] In this case, the elastomer 220 is made of plastic, and the plastic has a certain amount of deformation at the bent part. This amount of deformation helps to relieve the impact caused by the deformation and protects the elastomer 220 from damage. At the same time, it also enables the elastomer 220 to quickly return to its original state after being subjected to external forces, ensuring the long-term stability and reliability of the elastomer 220.

[0025] In this case, the bending angle of the elastomer 220 is a crucial parameter. It not only affects the elasticity and buffering performance of the elastomer 220 but also is directly related to the service life and stability of the switch box. The extending direction of the second bent body 232 forms an angle of 60° - 70° with the moving direction of the trigger bracket 210. If the inclination angle between the second bent body 232 and the moving direction of the trigger bracket 210 is too large, when subjected to external forces, the bent body will bear excessive bending stress, easily leading to breakage or cracks, thereby shortening the service life. If the angle is too small, it may cause the bent body to be unable to effectively buffer and disperse the impact force when subjected to external forces, and even cause a self-locking phenomenon, affecting the normal use of the switch box. Therefore, choosing 60° - 70° is the best. This angle can not only ensure that the bent body has sufficient ability to buffer and disperse the impact force when subjected to external forces but also avoid problems such as breakage, cracks, and self-locking, thus ensuring the long-term stable use of the switch box.

[0026] The bending angles of the third bending body 233 and the fourth bending body 234 are 35°-45°. The selection of this bending angle is also to better relieve the impact caused by deformation and at the same time ensure the elasticity of the elastic body 220. Within this angle range, the bending body can undergo appropriate deformation when subjected to an external force, thereby absorbing and dispersing the impact force. At the same time, due to the moderate bending angle, the bending body can quickly return to its original state after deformation, maintaining good elasticity and stability. In addition, the design of this bending angle also helps to improve the overall structural strength of the elastic body 220. When subjected to an external force, each bending body and elastic arm can work together to jointly bear the impact force, thereby enhancing the structural stability of the entire elastic body 220.

Claims

1. Power switch box control mechanism, characterized in that: It includes a control unit, and the control unit includes a first operation part (120) and a trigger part (200) integrally formed; wherein the trigger part (200) includes a trigger bracket (210) and an elastic body (220); the elastic body (220) includes an elastic structure in which a plurality of elastic arms are arranged in a folded shape, one end of which is connected to the first operation part (120) through a first bending body (231), and the other end is connected to the trigger bracket (210) through a second bending body (232).

2. The power switch box control mechanism according to claim 1, characterized in that: The plurality of elastic arms include a first elastic arm (221), a second elastic arm (222) and a third elastic arm (223), and the first elastic arm (221) and the second elastic arm (222) are connected through a third bending body (233), and the second elastic arm (222) and the third elastic arm (223) are connected through a fourth bending body (234).

3. The power switch box control mechanism according to claim 2, characterized in that: The thicknesses of both the first bending body (231) and the second bending body (232) are smaller than the thicknesses of the plurality of elastic arms.

4. The power switch box control mechanism according to claim 2, wherein: The thicknesses of both the third bending body (233) and the fourth bending body (234) are smaller than the thicknesses of the plurality of elastic arms.

5. The power switch box control mechanism according to claim 2, wherein: The extending direction of the second bending body (232) forms an angle of 60° - 70° with the moving direction of the trigger bracket (210).

6. The power switch box control mechanism according to claim 4, characterized in that: The extending direction of the second bending body (232) forms an angle of 60° - 70° with the moving direction of the trigger bracket (210).

7. The power switch box control mechanism according to any one of claims 2, 4, 5 or 6, characterized in that: The bending angles of the third bending body (233) and / or the fourth bending body (234) are 35° - 45°.

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