Lawn mower seat with safety mechanism

Abstract

The utility model discloses a lawn mower seat with a safety mechanism, comprising: a seat, the seat comprises a steel skeleton and a seat body, the bottom of the seat body is provided with a local cavity, and the cavity can be pressed down to deform and self-reset; a supporting plate is installed at the position of the cavity, a safety switch is arranged on the supporting plate, and a trigger part of the safety switch is arranged in the cavity; when the seat body is pressed downwards, the cavity deforms and abuts against the trigger part of the safety switch downwards, so that the safety switch is closed. And when the seat body is released, the cavity automatically resets, and the safety switch is kept to be switched off.

Description

Technical Field

[0001] The present application relates to the technical field of lawn mowers, and in particular to a lawn mower seat with a safety mechanism. Background Art

[0002] As a garden tool, lawn mowers are widely used in the fields of mowing lawns and vegetation. Among them, the existing riding lawn mowers are small engineering machines that can be driven by one person. In order to meet safety regulations, safety devices such as safety switches for controlling circuit on and off are often required to be installed on the seat. Whether to perform safety operations is determined by detecting whether there is a driver sitting on the seat.

[0003] In the known technology, such as the riding lawn mower proposed in publication number CN214430195U, two grooves perpendicular to each other are arranged on the lower side of the seat, and a pressure plate is arranged in one of the grooves to safely and reliably trigger the safety switch, thereby optimizing the starting method of the riding lawn mower, facilitating user operation, and improving the safety of operation.

[0004] Another example is the lawn mower with publication number CN215500487U. The trigger switch is installed on the contact surface between the seat support and the seat assembly, and the trigger switch is electrically connected to the battery pack controller. When the seat assembly is in the in-position state, the trigger switch sends an occupancy signal to the battery pack controller to control the normal power supply of the battery pack. When the seat assembly is out of position, the trigger switch sends a signal to the battery pack controller to control the power off of the battery pack. In this way, the battery pack can be replaced without power, ensuring safety.

[0005] The above structures are relatively complex and difficult to assemble and install. This application aims to propose a new safety mechanism for a riding lawn mower seat on the basis of meeting the same safety requirements, and simplifies the design of the safety mechanism, providing a new option for technical personnel in this field to meet safety requirements. Summary of the invention

[0006] Based on this, the present application provides a lawn mower seat with a safety mechanism.

[0007] The technical solution adopted in this application is: a lawn mower seat with a safety mechanism, comprising:

[0008] A seat, comprising a steel frame and a seat body, wherein a local cavity is provided at the bottom of the seat body, and the cavity can be deformed and reset by downward pressure;

[0009] A support plate is installed at the cavity, a safety switch is arranged on the support plate, and a trigger part of the safety switch is placed in the cavity;

[0010] When the seat body is pressed down, the cavity is deformed and contacts the triggering portion of the safety switch downward, so that the safety switch is closed; when the seat body is released, the cavity resets itself, so that the safety switch is kept disconnected.

[0011] In some embodiments, the seat body is a self-skinning foam seat.

[0012] In some embodiments, limiting columns are arranged around the support plate, and the limiting columns are placed between the support plate and the cavity.

[0013] In some embodiments, screws are provided to pass through the support plate and the limiting column to connect with the seat body.

[0014] In some embodiments, a plurality of supporting ribs are formed in the cavity, and the supporting ribs are integrated with the seat body.

[0015] In some embodiments, the seat body covers the steel frame.

[0016] In some embodiments, the safety switch includes a fixing plate, and two sides of the fixing plate are fixed to the supporting plate by bolts.

[0017] In some embodiments, the safety switch also includes a movable pressure plate, the fixed plate is provided with a plurality of sockets, the movable pressure plate is provided with a plurality of downwardly extending clips to engage with the sockets and keep the movable pressure plate movable longitudinally on the fixed plate, and the movable pressure plate is used to resist the triggering part of the safety switch.

[0018] The beneficial effect of the present application is that the safety switch is triggered by utilizing a deformable and self-resetting seat cavity, which greatly simplifies the structure, makes assembly more labor-saving, and reduces production costs compared to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the structural decomposition state of this application.

[0021] Figure 2 It is a schematic diagram of the structural assembly state of this application.

[0022] Figure 3 It is a structural schematic diagram of the hidden seat body of the present application.

[0023] Figure 4 It is a schematic diagram of the safety switch structure of the present application.

[0024] The reference numerals in the figure are: 1. steel frame, 2. seat body, 21. cavity, 211. supporting ribs, 3. supporting plate, 4. safety switch, 41. trigger part, 42. fixing plate, 421. socket, 43. movable pressure plate, 431. buckle, 5. limiting column, 6. screw. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection of this application.

[0026] Please refer to Figure 1-4 As shown, a specific implementation of the present application is shown: a lawn mower seat with a safety mechanism, which is mainly suitable for use on a riding lawn mower, and includes a seat and a support plate 3.

[0027] The seat comprises a steel frame 1 and a seat body 2, wherein a local cavity 21 is provided at the bottom of the seat body 2, and the cavity 21 can be deformed and reset by pressing downward. Preferably, the cavity 21 is approximately located in the middle area of ​​the seat body 2.

[0028] The support plate 3 is installed at the cavity 21, and a safety switch 4 is arranged on the support plate 3, and a trigger part 41 of the safety switch 4 is placed in the cavity 21. The safety switch 4 is used to connect the circuit system of the lawn mower, for example, to connect the lawn mowing power mechanism and / or the traveling power mechanism, that is, to control the on and off of the cutter motor or the driving motor.

[0029] During use, when the seat body 2 is pressed downward, the cavity 21 is deformed and presses downward against the trigger portion 41 of the safety switch 4, closing the safety switch 4; when the seat body 2 is released, the cavity 21 resets itself, keeping the safety switch 4 disconnected.

[0030] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0031] For example, regarding the selection of the seat body 2, you can choose a material that can achieve deformation and self-reset, such as rubber, sponge, elastic plastic, etc. As a better way, the seat body 2 can be selected as a self-skinning foam seat, and both support and resilience can be guaranteed.

[0032] For example, in order to better maintain the space between the support plate 3 and the cavity 21, the support plate 3 is provided with limiting posts 5 around it, and the limiting posts 5 are placed between the support plate 3 and the cavity 21. In this way, when the cavity 21 is pressed down, the supported part remains stationary, and the unsupported area in the middle deforms downward. This helps to provide better support for the seat and prevents the entire cavity 21 from collapsing and causing discomfort to the rider.

[0033] As one of the mounting methods of the support plate 3 and the seat body 2, a screw 6 is provided to pass through the support plate 3 and the limit column 5 and connect with the seat body 2. The screw 6 can be directly connected with the seat body 2, or nuts can be embedded in the seat body 2 and connected with the embedded nuts.

[0034] In order to maintain the shape of the cavity 21 and facilitate its self-reset, a plurality of supporting ribs 211 are formed in the cavity 21, and the supporting ribs 211 are integrated with the seat body 2. The supporting ribs 211 also play a reinforcing effect.

[0035] In this embodiment, the seat body 2 covers the steel frame 1. The steel frame 1 helps to improve the overall strength of the seat body 2.

[0036] For safety switch 4, refer to Figure 4 As shown, in some embodiments, the safety switch 4 includes a fixing plate 42, and two sides of the fixing plate 42 are fixed to the supporting frame by bolts.

[0037] Preferably, the safety switch 4 further includes a movable pressing plate 43, a plurality of insertion holes 421 are provided on the fixed plate 42, and the movable pressing plate 43 is provided with a plurality of buckles 431 extending downward to engage with the insertion holes 421 and keep the movable pressing plate 43 movable longitudinally on the fixed plate 42, and the movable pressing plate 43 is used to resist the triggering part 41 of the safety switch 4. In this way, the movable pressing plate 43 can increase the contact area with the movable frame, which is convenient for triggering the triggering part 41.

[0038] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0039] The above is only a preferred embodiment of the present application and does not impose any form of limitation on the present application. Simple modifications, equivalent changes or modifications made without departing from the technical solution of the present application shall fall within the scope of protection of the present application.

Claims

1. A lawn mower seat with a safety mechanism, characterized in that: include: A seat, comprising a steel frame and a seat body, wherein a local cavity is provided at the bottom of the seat body, and the cavity can be deformed and reset by downward pressure; A support plate is installed at the cavity, a safety switch is arranged on the support plate, and a trigger part of the safety switch is placed in the cavity; When the seat body is pressed downward, the cavity is deformed and contacts the triggering portion of the safety switch downward, so that the safety switch is closed; When the seat body is released, the cavity resets itself to keep the safety switch disconnected.

2. The lawn mower seat with a safety mechanism according to claim 1, characterized in that: The seat body is a self-skinning foam seat.

3. The lawn mower seat with a safety mechanism according to claim 1, characterized in that: Limiting columns are arranged around the support plate, and the limiting columns are placed between the support plate and the cavity.

4. The lawn mower seat with a safety mechanism according to claim 3, characterized in that: Screws are provided to pass through the support plate and the limiting column and be connected with the seat body.

5. The lawn mower seat with a safety mechanism according to claim 1, characterized in that: A plurality of supporting ribs are formed in the cavity, and the supporting ribs are integrated with the seat body.

6. The lawn mower seat with a safety mechanism according to claim 1, characterized in that: The seat body covers the steel frame.

7. The lawn mower seat with a safety mechanism according to claim 1, characterized in that: The safety switch comprises a fixing plate, and two sides of the fixing plate are fixed to the supporting plate by bolts.

8. The lawn mower seat with a safety mechanism according to claim 7, characterized in that: The safety switch also includes a movable pressure plate, the fixed plate is provided with a plurality of sockets, the movable pressure plate is provided with a plurality of downwardly extending buckles to engage with the sockets and keep the movable pressure plate movable longitudinally on the fixed plate, and the movable pressure plate is used to resist the triggering part of the safety switch.

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