CN112863908B - Switch box - Google Patents

Abstract

The invention discloses a switch box, which comprises a main box body and a trigger rotatably connected to the main box body, wherein the main box body comprises an upper box body and a lower box body which are mutually spliced, when the trigger is pulled, one side of the lower box body is rotated to the side of the lower box body, a self-resetting switch, a safety button, a first transmission component connected with a first reset spring and a second transmission component connected with a second reset spring are arranged in the main box body, the trigger comprises a first trigger and a second trigger, the first trigger and/or the second trigger rotate to drive the first transmission component to rotate, the safety button moves to drive the second transmission component to move, and the first transmission component and the second transmission component are linked to be used for conducting the self-resetting switch. The switch box provided by the invention can avoid the condition that the palm is easily clamped when the trigger turns to the holding means in the prior art, and the operation of pulling the trigger is more convenient.

Description

Switch box

Technical Field

The invention belongs to the field of garden equipment, and particularly relates to a switch box.

Background

The garden tool is generally used for the maintenance operation of afforestation plant, is equipped with the switch box on the garden tool generally and is used for controlling opening of instrument to stop, for guaranteeing safety, is equipped with safety button and trigger on the switch box generally, and safety button and trigger all are connected with drive assembly, need safety button and trigger drive assembly linkage respectively and just can start the instrument, can prevent to touch the trigger by mistake like this and cause the condition of instrument suddenly to start, avoid causing the injury to operating personnel. As shown in fig. 1, the switch box on the current gardening tool generally comprises the following structure: the switch box comprises a main box body 1, the main box body 1 is arranged on a handle 7, the handle 7 generally comprises a supporting section 70 and handrail sections 71 connected to two sides of the supporting section 70, thus an operator can respectively grasp the handrail sections 71 on the corresponding sides by two hands during operation, the operation is convenient, the operation needs to grasp the handrail sections 71 on one hand and press a safety button 5 and pull a trigger 2 on the other hand when a gardening tool is started, the supporting section 70 and the handrail sections 71 on the two sides form a containing frame in the prior art, the main box body 1 is connected to the supporting section 70 and is positioned in the containing frame, the safety button 5 is arranged on the upper surface of the main box body 1, the trigger 2 is rotatably connected to two sides of the main box body 1, and thus the two hands of the operator are relatively close to the safety button 5 and the trigger 2, and the convenience is provided that the trigger 2 is rotated from the main box body 1 to the handrail sections 71 on the corresponding sides when the trigger 2 is pulled.

The existing switch box has the following problems: 1. because the trigger 2 rotates from the main box body 1 to the armrest section 71 on the corresponding side when an operator pulls the trigger 2, the trigger 2 inevitably touches the palm after rotating to a certain position, the condition that the trigger 2 and the armrest section 71 clamp the palm tiger mouth easily occurs in actual work, on one hand, the palm is possibly clamped, on the other hand, the trigger 2 is possibly not moved in place due to the blocking of the clamped palm, so that the switch cannot be triggered to work, and the operation smoothness is affected; 2. when the existing switch box is used for pulling the trigger 2, an operator can only use the thumb to pull the trigger 2 when grasping the supporting means 71 downwards in order to grasp the supporting means 71, so that the operation of pulling the trigger 2 is inconvenient, and when the operator can grasp the supporting means 71 upwards in order to grasp the trigger 2 conveniently, the operation is convenient by pulling the trigger 2 by four fingers except the thumb, but because the palm grasps the handrail section 71 upwards, only the thumb plays a main grasping force, so that the operation of grasping the supporting means 71 is very hard, the operation of pulling the trigger 2 by the existing switch box is very inconvenient, the slipping of the operation palm is easy to cause the automatic reset of the trigger 2, the sudden shutdown of equipment is caused, and the operation smoothness is affected; 3. in order to hold the holding means 71 and press the safety button 5 and pull the trigger 2 by the palm, the distance between the main box body 1 and the holding means 71 at two sides cannot be too long inevitably, so that the rotation stroke of the trigger 2 is limited, the transmission component in the main box body 1 must be driven by the trigger 2 to act in a smaller rotation stroke of the trigger 2, and the self-reset switch is triggered to conduct, so that the structural design of the transmission component is difficult, the precision requirement is high, and the overall production cost of the switch box is high; 4. the existing switch box generally has two triggers 2, and because of the problem of short action stroke of the triggers 2, when the switch box is used, the two triggers 2 must be pulled simultaneously to drive the transmission assembly to act, and the transmission assembly cannot be driven to act only through the trigger 2 on one side, so that the operation is inconvenient.

Disclosure of Invention

The invention aims to provide a switch box which can effectively solve the problems that in the prior art, when a trigger of the switch box rotates towards a handrail section of a handle, the palm of an operator is easy to squeeze and the operation of pulling the trigger is inconvenient.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a switch box, including main box body and the trigger of swivelling joint on main box body, main box body is including last box body and the lower box body of mutual amalgamation, by the ascending box body place one side of lower box body place one side rotation when the trigger pulls, be equipped with from reset switch in the main box body, safety button, be connected with first reset spring's first drive assembly and be connected with second reset spring's second drive assembly, the trigger includes first trigger and second trigger, first trigger and/or second trigger rotate drive first drive assembly and rotate, safety button is connected with second drive assembly, first drive assembly and second drive assembly linkage are used for making from reset switch on.

Preferably, the first transmission assembly comprises a rotating shaft and a first rotating member fixedly connected to the middle part of the rotating shaft, the rotating shafts on two sides of the first rotating member are respectively sleeved with a first reset spring, the trigger is connected with the first rotating member through the rotating shaft, and a first gap is reserved between the first rotating member and the self-reset switch; the second transmission assembly comprises a second rotating piece, the second rotating piece is rotationally connected to the safety button, the second reset spring is sleeved on the second rotating piece, and the safety button overcomes the elastic force of the second reset spring to push the second rotating piece to extend into the first gap. The trigger is connected with the first rotating piece through the rotating shaft, so that the trigger is pulled to rotate and then drives the rotating shaft and the first rotating piece to rotate, but because a first gap exists between the first rotating piece and the self-resetting switch, the self-resetting switch cannot be conducted only by pulling the trigger, the safety regulation is guaranteed to be met, and operators are prevented from being accidentally injured. The safety button is pressed down firstly, the safety button pushes the second rotating part to enter the first gap, then the trigger is pulled, the first rotating part rotates and acts on the second rotating part, the second rotating part rotates and acts on the self-resetting switch to conduct the self-resetting switch, and the purpose that the first transmission assembly and the second transmission assembly are linked to conduct the self-resetting switch is achieved.

Preferably, both ends of the rotating shaft are provided with first connecting parts, the first connecting parts are provided with clamping grooves, the trigger is provided with second connecting parts, the second connecting parts are provided with clamping blocks matched with the clamping grooves, the main box body is provided with arc grooves, and the first connecting parts and the second connecting parts are rotatably arranged in the arc grooves. The trigger and the rotating shaft are convenient to mount and dismount in a clamping manner, and the arc-shaped groove is formed in the main box body, so that the trigger can only rotate relative to the main box body due to the limitation of the arc-shaped groove after the trigger is pulled.

Preferably, a through groove for accommodating the first return spring is formed in the main box body, one end of the first return spring is connected to the inner wall of the through groove, and the other end of the first return spring is connected to the first rotating member. Therefore, the first return spring cannot rotate along with the rotating shaft or the first rotating member, only can twist and form elastic deformation, and the first rotating member, the rotating shaft and the trigger rotate to restore to the original positions under the action of the elastic force of the first return spring after the trigger is released.

Preferably, the two sides of the safety button are provided with side plates, a fixed shaft is arranged between the side plates, and the second rotating piece is connected to the safety button in a rotating way by taking the fixed shaft as a pivot. The second rotating piece is connected with the safety button in a rotating way.

Preferably, the second rotating member is provided with a protrusion for being engaged with the first rotating member. Therefore, when the first rotating piece drives the second rotating piece to rotate towards the self-resetting switch, the first rotating piece cannot slip from the second rotating piece due to the fact that the end portion of the first rotating piece is clamped with the protrusion, and the situation that the self-resetting switch cannot be conducted due to accidental separation of the first rotating piece and the second rotating piece is avoided.

Preferably, the first transmission assembly comprises a gear transmission assembly, a pressing block and a pressing plate bracket, the trigger is connected with the pressing block through the gear transmission assembly, the pressing plate bracket comprises a pressing plate, an L-shaped supporting plate, an elastic plate and a cushion block which are sequentially connected, the pressing plate is tightly attached to the self-resetting switch, the pressing plate, the L-shaped supporting plate and the elastic plate form a containing cavity, the pressing block is partially positioned in the containing cavity, a second gap is reserved between the pressing block and the pressing plate, and a first reset spring is arranged between the pressing block and the pressing plate bracket as well as between the pressing plate and the self-resetting switch; the second transmission assembly comprises a jacking column fixedly connected to the safety button, the second reset spring is sleeved outside the jacking column, a sliding groove is formed in the jacking column along the radial direction, and one end of the elastic plate is arranged in the sliding groove in a sliding mode. The trigger is connected with the pressing block through the gear transmission assembly, and the trigger is pulled to rotate and then drives the gear transmission assembly and the pressing block to rotate, but because a second gap exists between the pressing block and the pressing block, the self-resetting switch cannot be conducted by pulling the trigger, the safety regulation is guaranteed to be met, and the operator is prevented from being accidentally injured. The safety button is pressed down only before, the jack post is pushed by the safety button to move, the elastic plate is pushed by the jack post to move again, the elastic plate moves to drive the cushion block part to enter the second gap, the trigger is pulled again, the pressing block rotates and acts on the cushion block, the pressing plate support moves to act on the self-resetting switch to enable the self-resetting switch to be conducted, and the purpose that the first transmission assembly and the second transmission assembly are linked to enable the self-resetting switch to be conducted is achieved.

Preferably, the gear transmission assembly comprises a connecting shaft, a helical gear, a helical rack and a connecting column, one end of the connecting shaft is fixedly connected with the trigger, the other end of the connecting shaft is fixedly connected with the helical gear, the helical gear is meshed with the helical rack for transmission, the connecting column is fixedly connected with the helical rack, and the pressing block is fixedly connected with the connecting column. The trigger drives the pressing block to rotate through the gear transmission assembly, and the gear transmission has the advantages of high transmission precision and stable transmission.

Preferably, the pressing block located on the side where the first trigger is located is a first pressing block, the pressing block connected to the second trigger is a second pressing block, the lower end of the first pressing block and/or the lower end of the second pressing block downwards extends to form a pressing end acting with the cushion block, a first clamping block and a second clamping block are arranged on the first pressing block, and a third clamping block matched with the first clamping block and a fourth clamping block matched with the second clamping block are arranged on the second pressing block. Through setting up first fixture block and the third fixture block of mutually supporting to and second fixture block and the fourth fixture block of mutually supporting, through the interact of first fixture block and third fixture block when pulling first trigger like this, make first trigger and second trigger realize the linkage, and through the interact of second fixture block and fourth fixture block when pulling the second trigger, make first trigger and second trigger realize the linkage, also can drive first drive assembly action through pulling the trigger of one of them side.

Preferably, the inner surface of the main box body is provided with a groove, and the pressing plate support is arranged in the groove in a sliding manner. The movement of the pressing plate support is facilitated through the groove, and meanwhile the pressing plate support can be limited to shake.

Compared with the prior art, the invention has the following beneficial effects:

1. the trigger is changed from the lower box to the upper box by changing the setting position of the trigger and correspondingly designing a transmission assembly structure different from the prior art, so that the action of the trigger is changed into the rotation of the lower box from the side of the lower box to the side of the upper box, the trigger can be pulled by using four fingers except the thumb or only an index finger, the palm is positioned at the other side of the support relative to the trigger, the palm cannot be touched during the action of the trigger, the palm is prevented from being clamped, and meanwhile, the problem that the action of the trigger is not in place due to the fact that the palm blocks the trigger is avoided, so that the operation of a trigger switch is smooth;

2. the switch box is simple and convenient to operate when the trigger is pulled, the handrail section is easy to grasp when the trigger is pulled, the condition that the equipment is suddenly stopped due to the fact that the trigger is automatically reset due to slipping of an operation palm is not easy to occur, and the operation is smooth;

3. because the trigger is rotated from the side of the lower box body to the side of the upper box body, the action stroke of the trigger is irrelevant to the distance between the main box body and the two-side supporting means, so that the distance between the main box body and the two-side supporting means can be shorter than that of the prior art, the palm is convenient to operate to press the safety button, and meanwhile, the action stroke of the trigger only needs to be considered to conform to the length of a finger in the design process, and can be longer than that of the prior art, thus the requirement on the structural design precision of a transmission assembly is lower, the design is convenient, and the production cost is low;

4. the first transmission component can be controlled to act through the first trigger and the second trigger at the same time, and the first transmission component can be controlled to act through the first trigger or the second trigger independently, so that on one hand, operators with left hand or right hand can operate according to personal habits, and on the other hand, when the self-reset switch is started, one hand can be conveniently left to operate the safety button, the operation of the switch box is smoother, and the switch box accords with human engineering better;

5. through setting up from reset switch in the switch box, press safety button and pull the trigger after, first drive assembly makes from reset switch on with the linkage of second drive assembly, after unclamping the trigger, because first reset spring and second reset spring's effect, make first drive assembly, second drive assembly, trigger and safety button all resume the normal position, can automatic re-setting close after the effort that self reset switch lost, the response is sensitive, can be relaxed quick switch between on state and off state for the switch box is more nimble, rapid to electric garden instrument's start-stop.

Drawings

FIG. 1 is a schematic diagram of a prior art switch box;

fig. 2 is a schematic structural diagram of a switch box according to a first embodiment;

FIG. 3 is a schematic diagram showing the linkage of a first transmission assembly and a second transmission assembly in accordance with a first embodiment;

FIG. 4 is a schematic diagram of the connection of the safety button to the second transmission assembly in the first embodiment;

FIG. 5 is a schematic view of the connection of the trigger to the spindle in the first embodiment;

FIG. 6 is a schematic view of a first embodiment of a rotational connection between a trigger and a spindle and a main housing;

FIG. 7 is a schematic view showing the internal structure of the main body in the first embodiment;

fig. 8 is a schematic structural diagram of a switch box according to a second embodiment;

FIG. 9 is a schematic view showing the internal structure of the main casing in the second embodiment;

FIG. 10 is a schematic diagram showing the linkage of a first transmission assembly and a second transmission assembly in a second embodiment;

FIG. 11 is a schematic view of a second embodiment of a platen support;

FIG. 12 is a schematic diagram showing the connection of a first press block to a second press block in a second embodiment;

in the second embodiment of fig. 13, the connection between the first pressing block and the second pressing block is schematically shown in the second embodiment.

Wherein, 1, a main box body, 11, an upper box body, 12, a lower box body, 13, a through groove, 14, an arc groove, 2, a trigger, 21, a first trigger, 22, a second trigger, 23, a second connecting part, 230, a clamping block, 3, a first transmission component, 30, a first reset spring, 31, 310, first connecting portion, 311, clamping groove, 32, first rotating member, 33, gear transmission assembly, 330, connecting shaft, 331, helical gear, 332, helical rack, 333, connecting post, 34, press block, 340, press down end, 341, first press block, 3411, 3412, 342, 3421, 3422, 35, platen support, 350, 351, L-shaped support, 352, resilient plate, 353, spacer, 4, second drive assembly, 40, second return spring, 41, second rotating piece, 410, protrusion, 42, top post, 420, chute, 5, safety button, 50, side plate, 51, fixed shaft, 6, self-resetting switch, 60, self-resetting switch button, 7, handle, 70, support section, 71, support means. The direction indicated by the arrow in fig. 1 is the direction of rotation of the trigger when the trigger is actuated.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. Furthermore, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly, as for example, they may be fixedly connected, detachably connected, or integrated; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Embodiment one: as shown in fig. 2, a switch box comprises a main box body 1 and a trigger 2 rotatably connected to the main box body 1, wherein the main box body 1 comprises an upper box body 11 and a lower box body 12 which are mutually spliced, the main box body 1 is mounted on a supporting section 70 of a handle 7, and the main box body 1 is positioned in a containing frame formed by the supporting section 70 and handrail sections 71 at two sides, namely, the main box body 1, the supporting section 70 and the handrail sections 71 are positioned on the same plane. When the trigger 2 is pulled in this embodiment, the trigger 2 is rotated from the side of the lower case 12 to the side of the upper case 11. Referring to fig. 1, the "upper" and "lower" in the upper case 11 and the lower case 12 described in this embodiment indicate orientations such that when the operator faces the main case and holds the handles with both hands, the case on the side close to the operator is the upper case, and the case on the side far from the operator or close to the ground is the lower case. According to the switch box provided by the embodiment, the trigger 2 is changed to rotate from one side of the lower box body 12 to the other side of the upper box body 11 by changing the setting position of the trigger 2 in the prior art, so that the hand grips the armrest section 71 downwards by the palm, the trigger 2 can be pulled by using four fingers except the thumb or only the index finger, and the palm is not touched when the trigger 2 is operated because the palm is positioned at the other side of the armrest 71 relative to the trigger 2, so that the palm is prevented from being scratched, and meanwhile, the problem that the trigger 2 is not in place due to the fact that the trigger 2 is blocked by the palm is avoided, so that the operation of the trigger switch is smooth; the operation of pulling the trigger 2 by the switch box is simple, the handrail section 71 is easy to grasp while the trigger 2 is pulled, the condition that the equipment is suddenly stopped due to the fact that the operating palm slips off and the trigger 2 is automatically reset is not easy to occur, and the operation is smooth; because the trigger 2 moves to rotate from one side of the lower box body 12 to the side of the upper box body 11, the movement stroke of the trigger 2 is irrelevant to the distance between the main box body 1 and the two side supporting means 71, so that the distance between the main box body 1 and the two side supporting means 71 can be shorter than that of the prior art, the palm is convenient to operate to press the safety button 5, meanwhile, the movement stroke of the trigger 2 only needs to consider the length of the finger in design, and can be longer than that of the prior art, the requirement on the structural design precision of the transmission assembly is lower, and the design is convenient and the production cost is low.

As shown in fig. 3 and 4, the transmission assembly in this embodiment is designed as follows: the main box body 1 is internally provided with a self-resetting switch 6, a safety button 5, a first transmission component 3 connected with a first resetting spring 30 and a second transmission component 4 connected with a second resetting spring 40, the trigger 2 comprises a first trigger 21 and a second trigger 22, the first trigger 21 or the second trigger 22 can drive the first transmission component 3 to overcome the elastic force of the first resetting spring 30 to act, the safety button 5 is connected with the second transmission component 4, the safety button 5 is used for driving the second transmission component 4 to overcome the elastic force of the second resetting spring 40 to act, and the first transmission component 3 and the second transmission component 4 are linked to conduct the self-resetting switch 6. The first transmission component 3 can be controlled to act through the first trigger 21 and the second trigger 22 at the same time, and the first transmission component 3 can be controlled to act through the first trigger 21 or the second trigger 22 alone, so that on one hand, operators with left hand or right hand can operate according to personal habits, on the other hand, when the self-reset switch 6 is started, the safety button 5 can be conveniently and completely operated by leaving one hand free, and the operation of the switch box is smoother and accords with human engineering better. In this embodiment, two triggers 2 are provided, namely, the first trigger 21 and the second trigger 22, respectively, and it is understood that only one trigger may be provided, such as only the first trigger 21 or only the second trigger 22. In addition, in this embodiment, the self-resetting switch 6 that sets up in the switch box, the self-resetting switch 6 is in normally closed state, only the self-resetting switch button 60 on the self-resetting switch 6 receives external effort and presses down and just can switch on, can automatic re-setting close after losing the effort that receives, and the response is sensitive, can be light quick switch between on state and off state for the switch box is more nimble, rapid to the start of electric garden instrument.

In this embodiment, the first transmission assembly 3 includes a rotating shaft 31 and a first rotating member 32, the first rotating member 32 is connected with the rotating shaft 31, the rotating shaft 31 is connected with the trigger 2, the rotating shafts 31 on two sides of the first rotating member 32 are respectively sleeved with a first reset spring 30, the trigger 2 is pulled to drive the first rotating member 32 to rotate towards the self-reset switch 6 by overcoming the elastic force of the first reset spring 30 through the rotating shaft 31, and a first gap is formed between the first rotating member 32 and the self-reset switch 6. In this embodiment, the second transmission assembly 4 includes a second rotating member 41, two sides of the safety button 5 are provided with side plates 50, a fixed shaft 51 is disposed between the side plates 50, the second rotating member 41 is pivotally connected to the safety button 5 by using the fixed shaft 51 as a pivot, two side plates 50 are sleeved with second return springs 40, and the safety button 5 is used for pushing the second rotating member 41 to overcome the elastic force of the second return springs 40, so that the second rotating member 41 partially extends into the first gap. In order to avoid the first rotating member 32 from sliding off the second rotating member 41 and separating from the first rotating member 32 during the process of driving the second rotating member 41 to rotate, in this embodiment, a protrusion 410 is further disposed on the second rotating member 41 for engaging with the first rotating member 32.

As shown in fig. 5 and fig. 6, in this embodiment, the end of the rotating shaft 31 is provided with a first connecting portion 310, the first connecting portion 310 is provided with a clamping groove 311, the end of the trigger 2 is provided with a second connecting portion 23, the second connecting portion 23 is provided with a clamping block 230 matched with the clamping groove 311, and the rotating shaft 31 and the trigger 2 are clamped by matching the clamping groove 311 in the first connecting portion 310 and the clamping block 230 in the second connecting portion 23, so that the trigger 2 drives the rotating shaft 31 to rotate.

The first return spring 30 in this embodiment is mounted as shown in fig. 7: the main box body 1 is internally provided with a first through groove 13 for accommodating a first return spring 30 and a rotating shaft 31, one end of the first return spring 30 is connected to the inner wall of the first through groove 13, and the other end of the first return spring 30 is connected to a first rotating member 32. Therefore, when the first rotating member 32 rotates, the other end of the first return spring 30 is driven, and one end of the first return spring 30 is connected to the inner wall of the first through groove 13, so that the first return spring 30 cannot rotate along with the rotating shaft 31 or the first rotating member 32, only can twist and form elastic deformation, and after the trigger 2 is released, the first rotating member 32, the rotating shaft 31 and the trigger 2 rotate and return to the original positions under the action of the elastic force of the first return spring 30.

The working principle of the switch box provided by the embodiment is described as follows: the safety button 5 is pressed, and the safety button 5 pushes the second rotating member 41 to partially extend into the first gap, and then pulls the trigger 2, in this embodiment, since the first trigger 21 and the second trigger 22 are respectively connected to two ends of the rotating shaft 31, only the first trigger 21 or only the second trigger 22 can be pulled to rotate the rotating shaft 31. The rotating shaft 31 drives the first rotating member 32 to rotate, the first rotating member 32 rotates and then contacts with the second rotating member 41 extending into the first gap to drive the second rotating member 41 to rotate, the second rotating member 41 rotates towards the self-resetting switch 6 and presses the self-resetting switch key 60 down, so that the self-resetting switch 6 is turned on, and the above process is a process of controlling the electric garden equipment to be turned on through the switch box. When the electric garden equipment is required to be shut down, only the holding trigger 2 is required to be loosened, after the trigger 2 is loosened, the elastic force of the first reset spring 30 drives the first rotating piece 32 to rotate, and the first rotating piece 32 drives the trigger 2 to rotate to the original position through the rotating shaft 31. And the second rotating member 41 is turned back to the original position by the second return spring 40 after losing the force of the first rotating member 32, and the safety button 5 is returned to the original position by the second return spring 40. The self-resetting switch key 60 can be automatically reset after the acting force of the second rotating member 41 is removed, and the electric gardening tool is switched from the on state to the off state, so that the electric gardening tool stops working.

Embodiment two: as shown in fig. 8 to 11, the present embodiment also provides a switch box, which is different from the above-described embodiment in that the first transmission assembly 3 and the second transmission assembly 4 in the present embodiment adopt different structures from those in the above-described embodiment. Specifically: in this embodiment, the first transmission assembly 3 includes a gear transmission assembly 33, a pressing block 34 and a pressing plate bracket 35, the trigger 2 is connected with the pressing block 34 through the gear transmission assembly 33, the pressing plate bracket 35 includes a pressing plate 350, an L-shaped support plate 351, an elastic plate 352 and a cushion 353 which are sequentially connected, the pressing plate 350 is tightly attached to the self-resetting switch 6, the pressing plate 350, the L-shaped support plate 351 and the elastic plate 352 form a containing cavity, the pressing block 34 is partially located in the containing cavity, and a first reset spring 30 is arranged between the pressing block 34 and the pressing plate bracket 35 and the self-resetting switch 6; the trigger 2 drives the pressing block 34 to rotate towards the pressing plate 350 against the elastic force of the first reset spring 30 through the gear transmission assembly 33, and a second gap is formed between the pressing block 34 and the pressing plate 350; the second transmission assembly 4 comprises a jack post 42 fixedly connected to the safety button 5, the second reset spring 40 is sleeved outside the jack post 42, the safety button 5 overcomes the elastic force of the second reset spring 40 to push the jack post 42 to move, and the jack post 42 pushes the elastic plate 352 to move so that the cushion 353 partially stretches into the second gap.

In order to facilitate the movement of the elastic plate 352, a sliding groove 420 is formed in the top column 42 along the radial direction, and one end of the elastic plate 352 is slidably disposed in the sliding groove 420. The top column 42 moves axially along the top column 42 under the pushing of the safety button 5, so that the elastic plate 352 is pushed to act, the elastic plate 352 acts to push the cushion 353 to extend into the second gap, and the sliding groove 420 is arranged to facilitate the action of the elastic plate 352 along the radial displacement of the top column 42.

The gear transmission assembly 33 in this embodiment includes a connecting shaft 330, a helical gear 331, a helical rack 332 and a connecting post 333, one end of the connecting shaft 330 is fixedly connected with the trigger 2, the other end of the connecting shaft 330 is fixedly connected with the helical gear 331, the helical gear 331 is meshed with the helical rack 332 for transmission, the connecting post 333 is fixedly connected with the helical rack 332, and the pressing block 34 is fixedly connected with the connecting post 333.

In this embodiment, a groove for sliding the platen support 35 is formed on the inner surface of the main case 1, so that the platen support 35 can slide on the one hand, and the platen support 35 can be restricted from swinging on the other hand.

In this embodiment, a transverse plate is further arranged on the inner surface of the main box body 1, a first return spring 30 is convenient to set, the bottom end of the first return spring 30 is connected to one side surface of the transverse plate, the top end of the first return spring 30 is connected to the pressing block 34, the pressing plate 350 is located on the other side of the transverse plate, a through hole is formed in the transverse plate, a vertical plate is arranged in the through hole, the top end of the vertical plate is fixedly connected with the L-shaped supporting plate 351, and the bottom end of the vertical plate is fixedly connected with the pressing plate 350.

As shown in fig. 12 and 13, the pressing block 34 located on the side of the first trigger 21 is a first pressing block 341, the pressing block 34 connected to the second trigger 22 is a second pressing block 342, and the lower end of the second pressing block 342 extends downward to form a pressing end 340 acting with the cushion block 353, it is understood that the pressing end may be disposed at the lower end of the first pressing block 341. The first pressing block 341 is provided with a first clamping block 3411 and a second clamping block 3412, and the second pressing block 342 is provided with a third clamping block 3421 matched with the first clamping block 3411 and a fourth clamping block 3422 matched with the second clamping block 3412. Through setting up first fixture block 3411 and the third fixture block 3421 of mutually supporting, and second fixture block 3412 and fourth fixture block 3422 of mutually supporting, through the interact of first fixture block 3411 and third fixture block 3421 when pulling first trigger 21 like this, make first trigger 21 and second trigger 22 realize the linkage, and through the interact of second fixture block 3412 and fourth fixture block 3422 when pulling second trigger 22, make first trigger 21 and second trigger 22 realize the linkage, can also drive first drive assembly 3 action through pulling trigger 2 of one of them side.

The working principle of the switch box provided by the embodiment is described as follows: the safety button 5 is pressed, the safety button 5 pushes the top column 42 to axially move along the top column 42, the top column 42 pushes the elastic plate 352 to act, and the elastic plate 352 drives the cushion 353 to extend into the second gap. And then the trigger 2 is pulled to drive the helical gear 331 to rotate through the connecting shaft 330, the helical gear 331 drives the helical rack 332 to rotate through meshing transmission, the helical rack 332 drives the pressing block 34 to rotate, and the pressing end 340 below the pressing block 34 rotates to apply acting force to the cushion 353. It should be noted that, in the present embodiment, since the first clamping block 3411 and the third clamping block 3421, and the second clamping block 3412 and the fourth clamping block 3422 are mutually matched, only the first trigger 21 or only the second trigger 22 may be pulled to drive the first transmission assembly 3 to act. After the cushion 353 receives the acting force of the pressing end 340, the whole pressing plate bracket 35 is stressed to slide along the groove, and the pressing plate 350 acts on the self-resetting switch key 60, so that the self-resetting switch 6 is conducted. The above-mentioned process is the process of controlling the electronic garden equipment to open through the switch box. When the electric garden equipment is required to be shut down, only the holding trigger 2 is required to be loosened, after the trigger 2 is loosened, the elastic force of the first reset spring 30 pushes the pressing plate bracket 35 to integrally move to restore to the original position, and the pressing block 34 and the gear transmission assembly 33 drive the trigger 2 to rotate to restore to the original position. And the cushion 353 will return to the original position under the action of the self-elastic force after losing the force of the pressing block 34, at this time, the safety button 5 will rebound to the original position under the action of the second return spring 40, and the safety button 5 drives the jack-prop 42 to return to the original position. The self-resetting switch button 60 can automatically reset after losing the acting force of the pressing plate 350, and the electric gardening tool is switched from the on state to the off state, and stops working.

The above embodiments are merely examples of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.

Claims (9)

1. The utility model provides a switch box, includes main box body (1) and rotates trigger (2) of connecting on main box body (1), main box body (1) are including last box body (11) and lower box body (12) of mutual amalgamation, its characterized in that: when the trigger (2) is pulled, one side where the lower box body (12) is located is rotated towards one side where the upper box body (11) is located, a self-reset switch (6), a safety button (5), a first transmission assembly (3) connected with a first reset spring (30) and a second transmission assembly (4) connected with a second reset spring (40) are arranged in the main box body (1), the trigger (2) comprises a first trigger (21) and a second trigger (22), the first trigger (21) and/or the second trigger (22) rotate to drive the first transmission assembly (3) to rotate, the safety button (5) is connected with the second transmission assembly (4), and the first transmission assembly (3) is linked with the second transmission assembly (4) to conduct the self-reset switch (6);

the first transmission assembly (3) comprises a rotating shaft (31) and a first rotating member (32) fixedly connected to the middle of the rotating shaft (31), first reset springs (30) are sleeved on the rotating shafts (31) on two sides of the first rotating member (32), the trigger (2) is connected with the first rotating member (32) through the rotating shaft (31), and a first gap is reserved between the first rotating member (32) and the self-reset switch (6);

the second transmission assembly (4) comprises a second rotating piece (41), the second rotating piece (41) is rotationally connected to the safety button (5), the second reset spring (40) is sleeved on the second rotating piece (41), and the safety button (5) overcomes the elastic force of the second reset spring (40) to push the second rotating piece (41) to partially extend into the first gap.

2. A switch box as claimed in claim 1, wherein: the two ends of the rotating shaft (31) are respectively provided with a first connecting part (310), the first connecting parts (310) are provided with clamping grooves (311), the trigger (2) is provided with a second connecting part (23), the second connecting part (23) is provided with clamping blocks (230) matched with the clamping grooves (311), the main box body (1) is provided with arc grooves (14), and the first connecting parts (310) and the second connecting parts (23) are respectively rotatably arranged in the arc grooves (14).

3. A switch box as claimed in claim 1, wherein: the main box body (1) is internally provided with a through groove (13) for accommodating a first return spring (30), one end of the first return spring (30) is connected to the inner wall of the through groove (13), and the other end of the first return spring (30) is connected to a first rotating member (32).

4. A switch box as claimed in claim 1, wherein: the two sides of the safety button (5) are provided with side plates (50), a fixed shaft (51) is arranged between the side plates (50), and the second rotating piece (41) is connected to the safety button (5) in a pivoted mode by taking the fixed shaft (51).

5. A switch box as claimed in claim 1, wherein: the second rotating piece (41) is provided with a protrusion (410) for being matched and clamped with the first rotating piece (32).

6. The utility model provides a switch box, includes main box body (1) and rotates trigger (2) of connecting on main box body (1), main box body (1) are including last box body (11) and lower box body (12) of mutual amalgamation, its characterized in that: when the trigger (2) is pulled, one side where the lower box body (12) is located is rotated towards one side where the upper box body (11) is located, a self-reset switch (6), a safety button (5), a first transmission assembly (3) connected with a first reset spring (30) and a second transmission assembly (4) connected with a second reset spring (40) are arranged in the main box body (1), the trigger (2) comprises a first trigger (21) and a second trigger (22), the first trigger (21) and/or the second trigger (22) rotate to drive the first transmission assembly (3) to rotate, the safety button (5) is connected with the second transmission assembly (4), and the first transmission assembly (3) is linked with the second transmission assembly (4) to conduct the self-reset switch (6);

the first transmission assembly (3) comprises a gear transmission assembly (33), a pressing block (34) and a pressing plate support (35), the trigger (2) is connected with the pressing block (34) through the gear transmission assembly (33), the pressing plate support (35) comprises a pressing plate (350), an L-shaped support plate (351), an elastic plate (352) and a cushion block (353) which are sequentially connected, the pressing plate (350) is tightly attached to the self-resetting switch (6), the pressing plate (350), the L-shaped support plate (351) and the elastic plate (352) form a containing cavity, the pressing block (34) is partially positioned in the containing cavity, a second gap is reserved between the pressing block (34) and the pressing plate (350), and the pressing block (34) and the pressing plate support (35) are both provided with the first resetting spring (30) with the self-resetting switch (6);

the second transmission assembly (4) comprises a jacking column (42) fixedly connected to the safety button (5), the second reset spring (40) is sleeved outside the jacking column (42), a sliding groove (420) is formed in the jacking column (42) in the radial direction, and one end of the elastic plate (352) is slidably arranged in the sliding groove (420).

7. A switch box as claimed in claim 6, wherein: the gear transmission assembly (33) comprises a connecting shaft (330), a helical gear (331), a helical rack (332) and a connecting column (333), one end of the connecting shaft (330) is fixedly connected with the trigger (2), the other end of the connecting shaft (330) is fixedly connected with the helical gear (331), the helical gear (331) is in meshed transmission with the helical rack (332), the connecting column (333) is fixedly connected with the helical rack (332), and the pressing block (34) is fixedly connected with the connecting column (333).

8. A switch box as claimed in claim 6, wherein: the pressing block (34) located on the side where the first trigger (21) is located is a first pressing block (341), the pressing block (34) connected to the second trigger (22) is a second pressing block (342), the lower end of the first pressing block (341) and/or the lower end of the second pressing block (342) extends downwards to form a pressing end (340) acting with the cushion block (353), a first clamping block (3411) and a second clamping block (3412) are arranged on the first pressing block (341), and a third clamping block (3421) matched with the first clamping block (3411) and a fourth clamping block (3422) matched with the second clamping block (3412) are arranged on the second pressing block (342).

9. A switch box as claimed in claim 6, wherein: the inner surface of the main box body (1) is provided with a groove, and the pressing plate support (35) is arranged in the groove in a sliding manner.