CN115281017A - Forestry is with happy sapling cultured equipment - Google Patents

Abstract

The invention discloses a happy sapling cultivation device for forestry, which comprises a box body, wherein a cultivation groove is arranged at the upper end of the box body, a pot body is arranged in the cultivation groove, two placing grooves are symmetrically arranged at the upper end of the pot body, a threaded sleeve is fixedly connected to the lower end of the pot body, a driving motor is installed at the lower end of the box body, a threaded rod is fixedly connected to the tail end of an output shaft of the driving motor, the upper end of the threaded rod extends into the threaded sleeve and is in threaded connection with the inner wall of the threaded sleeve, two moving grooves are arranged at the upper end of the box body, and the inner bottoms of the two moving grooves are rotatably connected with a vertical rod. This equipment can start driving motor and drive clockwise rotation when the summer high temperature, takes in the sapling to the culture tank in, and two baffle slopes shelter from the sapling simultaneously, avoid long-time high temperature to shine the normal growth that influences the sapling, and simultaneously when the temperature is lower, the water spray replenishes the moisture of the evaporation of sapling, ensures the normal growth of sapling.

Description

Forestry is with happy sapling cultured equipment

Technical Field

The invention relates to the technical field of forestry sapling culture, in particular to a Happy sapling culture device for forestry.

Background

The Happy Tree is named as Cajanus cajan, which likes the environment with high temperature, much humidity and enough sunlight. High temperature resistant, the chilly is intolerant to cold, should moisten, taboo is dry, because its floriation is the meaning of happiness peace, receives liking of people deeply, and the sapling of current happy tree adopts artificial cultivation's mode to cultivate the back and sells mostly, then current happy sapling still has following problem at the cultivation in-process:

present happy sapling is cultivated artificial when most and is placed the sapling and cultivate in the flowerpot, though happy tree is the plant of liking the high temperature, then in summer, when external temperature surpassed 28 ℃, the evaporation of moisture contained in the happy sapling can be accelerated this moment, influence the normal growth of happy sapling, consequently, need remove the sapling to indoor when high temperature weather, greatly increased cultivates personnel's work load like this, simultaneously because indoor air mobility is relatively poor, place indoor when the sapling, make the insect pest on the sapling easily, therefore, how this problem of reasonable solution is that we need consider.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a happy sapling cultivation device for forestry.

In order to achieve the purpose, the invention adopts the following technical scheme:

the upper end of the box body is symmetrically provided with two placing grooves, the lower end of the box body is fixedly connected with a threaded sleeve, the lower end of the box body is provided with a driving motor, the tail end of an output shaft of the driving motor is fixedly connected with a threaded rod, the upper end of the threaded rod extends into the threaded sleeve and is in threaded connection with the inner wall of the threaded sleeve, the upper end of the box body is provided with two moving grooves, the inner bottoms of the two moving grooves are rotatably connected with vertical rods, the two vertical rods are respectively provided with a threaded layer, the two threaded layers are respectively in threaded connection with a sliding block, the two sliding blocks are in sliding connection with the inner wall of the moving grooves, the upper ends of the two sliding blocks are respectively and fixedly connected with two connecting rods, the upper ends of the two matched connecting rods are jointly and fixedly connected with each other, the upper ends of the two matched moving plates are respectively provided with two mounting blocks, the adjacent surfaces of the two matched mounting blocks are jointly and rotatably connected with a rotating rod, and the two rotating rods are respectively and fixedly connected with a baffle; two the upper end of movable plate all erects the groove, two erect the inslot and all be equipped with the removal subassembly, the removal subassembly is used for controlling the baffle rotation.

Preferably, the moving assembly comprises a moving block arranged in the vertical groove, the moving block is slidably connected with the inner wall of the vertical groove, the lower end of the moving block is elastically connected with the inner bottom of the vertical groove through a first spring, a first rack is fixedly connected to the upper end of the moving block, and a first rotating gear matched with the first rack is fixedly connected to the rotating rod.

Preferably, be equipped with horizontal chamber in the box, the threaded rod runs through horizontal chamber, two the lower extreme of montant all extends to horizontal intracavity, the threaded rod passes through the drive assembly transmission with two montants and is connected, the drive assembly is including setting up the sprocket on threaded rod and two montants, and is three the sprocket passes through chain drive and connects.

Preferably, a temperature sensor is installed on the left side of the box body, the sliding block located on the left side is conductive, conductive plates are arranged on the inner walls of the left side and the right side of the moving groove located on the left side, the two conductive plates and the sliding block located on the left side form a conductive assembly, the first spring is conductive, and the conductive assembly is used for controlling the on-off of the two first springs.

Preferably, two the lower extreme of slider all is equipped with folding gasbag, two one side that the slider was kept away from to folding gasbag and the interior bottom fixed connection of shifting chute, the bottom space of culture trough is filled with water, it has two hollow plates to embed on the left and right sides inner wall of culture trough, two the adjacent surface of hollow plate all is equipped with the delivery port, two folding gasbag passes through the inlet tube intercommunication with the bottom space of culture trough, two folding gasbag passes through the outlet pipe intercommunication with the corresponding hollow plate, two all be equipped with the check valve on inlet tube and the outlet pipe.

Preferably, be equipped with the reciprocating cavity in the box, driving motor's output shaft end extends to reciprocating cavity and the incomplete gear of fixedly connected with, two telescopic links, two are installed to reciprocating cavity's interior bottom the common fixedly connected with fixed plate of flexible end of telescopic link, the lower extreme of fixed plate and reciprocating cavity's interior bottom are through two second spring elastic connection, the upper end of fixed plate is rotated and is connected with the rectangular rod, the lower extreme of threaded rod is equipped with the rectangular channel, the upper end of rectangular rod extends to the rectangular channel in, be equipped with second rotating gear on the rectangular rod.

Preferably, a piston is arranged in the reciprocating cavity, the piston is in sliding connection with the inner wall of the reciprocating cavity, the left side of the piston is elastically connected with the inner wall of the left side of the reciprocating cavity through a third spring, a second rack matched with the incomplete gear is fixedly connected to the right side of the piston, the left space of the reciprocating cavity is communicated with the outside through an air inlet pipe, the left space of the reciprocating cavity is communicated with the two hollow plates through a three-way pipe, and the air inlet pipe and the three-way pipe are provided with one-way valves.

The invention has the following beneficial effects:

1. compared with the prior art, when the external temperature exceeds 28 ℃ in summer, the sapling can be taken into the culture tank, and the two baffles move upwards and deflect to shield the sapling, so that the situation that the evaporation speed of water in the sapling is high due to direct irradiation of sunlight is avoided, and the normal growth of the sapling in summer is ensured;

2. compared with the prior art, when the temperature is high, the sapling enters the culture tank and then is closer to the water surface, and evaporated water can be better absorbed by the sapling, so that the situation that the water in the sapling is evaporated too much due to high temperature is reduced;

3. compared with the prior art, when the high temperature, shelter from the back when the baffle to the sapling, incomplete gear can break away from with second rotating gear this moment to utilize the rotation of incomplete gear to drive the piston and remove about, and then gas flow around the sapling accelerates, avoid after sheltering from around the sapling gaseous not circulate and lead to the condition appearance of production insect pest on the sapling.

Drawings

FIG. 1 is a schematic structural diagram of a Happy sapling cultivation device for forestry according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a diagram illustrating the operation of FIG. 1 at a low temperature;

FIG. 4 is a schematic structural view of embodiment 2 of the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4.

In the figure: the device comprises a box body 1, a temperature sensor 2, a culture tank 3, a placement groove 4, a basin body 5, a driving motor 6, a threaded rod 7, a transverse cavity 8, a transmission assembly 9, a vertical rod 10, a folding airbag 11, a sliding block 12, a conducting strip 13, a moving plate 14, a vertical groove 15, a first rack 16, a hollow plate 17, a moving block 18, a first spring 19, a threaded sleeve 20, a baffle 21, a first rotating gear 22, an installation block 23, a second rack 24, a second spring 25, a piston 26, a third spring 27, a three-way pipe 28, a rectangular groove 29, a rectangular rod 30, a second rotating gear 31 and a fixing plate 32.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Example 1

Referring to fig. 1-3, a happy sapling cultivation device for forestry, comprising a box body 1, a cultivation tank 3 is arranged at the upper end of the box body 1, a pot body 5 is arranged on the cultivation tank 3, two placing grooves 4 are symmetrically arranged at the upper end of the pot body 5, a threaded sleeve 20 is fixedly connected at the lower end of the pot body 5, a driving motor 6 is arranged at the lower end of the box body 1, a threaded rod 7 is fixedly connected at the tail end of an output shaft of the driving motor 6, the upper end of the threaded rod 7 extends into the threaded sleeve 20 and is in threaded connection with the inner wall of the threaded sleeve 20, two moving grooves are arranged at the upper end of the box body 1, vertical rods 10 are rotatably connected at the inner bottoms of the two moving grooves, thread layers are respectively arranged on the two vertical rods 10, and sliding blocks 12 are respectively in threaded connection with the two thread layers, inner wall sliding connection of two sliders 12 and shifting chute, two connecting rods of the equal fixedly connected with in upper end of two sliders 12, the common fixedly connected with movable plate 14 in upper end of two matched with connecting rods, two installation pieces 23 are all installed to the upper end of two movable plates 14, the looks proximal surface of two matched with installation pieces 23 rotates jointly and is connected with the bull stick, equal fixedly connected with baffle 21 on two bull sticks, be equipped with horizontal chamber 8 in the box 1, threaded rod 7 runs through horizontal chamber 8, the lower extreme of two montants 10 all extends to in the horizontal chamber 8, threaded rod 7 is connected through the transmission of transmission assembly 9 with two montants 10, transmission assembly 9 is including setting up the sprocket on threaded rod 7 and two montants 10, three sprocket passes through chain drive and connects.

The upper ends of the two moving plates 14 are all provided with vertical grooves 15, moving assemblies are arranged in the two vertical grooves 15 and used for controlling the baffle 21 to rotate, each moving assembly comprises a moving block 18 arranged in each vertical groove 15, the moving blocks 18 are connected with the inner wall of each vertical groove 15 in a sliding mode, the lower ends of the moving blocks 18 are elastically connected with the inner bottom of each vertical groove 15 through first springs 19, the upper ends of the moving blocks 18 are fixedly connected with first racks 16, and first rotating gears 22 matched with the first racks 16 are fixedly connected to the rotating rods.

Wherein, temperature sensor 2 is installed in the left side of box 1, a controller is provided, the controller is controlled the operation of driving motor 6 with stop, 6 servo motor of driving motor, can be through clockwise or anticlockwise rotation of controller to driving motor 6, it has electric conductivity to be located left slider 12, it all is equipped with conducting strip 13 on the left and right sides inner wall of left shifting chute to be located, two conducting strip 13 constitute a conducting component with being located left slider 12, first spring 19 has electric conductivity, conducting component is used for controlling the power on-off of two first springs 19, set up an external power supply, conducting component and two first springs 19 pass through the wire and constitute a return circuit.

Wherein, the lower extreme of two sliders 12 all is equipped with folding gasbag 11, one side that slider 12 was kept away from to two folding gasbags 11 and the interior bottom fixed connection of shifting chute, the bottom space packing of culture trough 3 has water, the embedding has two hollow boards 17 on the left and right sides inner wall of culture trough 3, two hollow board 17's looks proximal surface all is equipped with the delivery port, two folding gasbags 11 pass through the inlet tube intercommunication with the bottom space of culture trough 3, two folding gasbags 11 pass through the outlet pipe intercommunication with the hollow board 17 that corresponds, all be equipped with the check valve on two inlet tubes and the outlet pipe, water in the culture trough 3 passes through the one-way entering of inlet tube to folding gasbag 11 in, water in the folding gasbag 11 passes through the outlet pipe and enters into to hollow board 17 in.

The invention can be illustrated by the following operating modes: in an initial state, planting the happiness saplings in the two placing grooves 4, wherein the inner bottom of the culture groove 3 is filled with water, so that the happiness saplings can be automatically steamed to water the seedlings, when the external temperature is not high, the state of the box body 1 is shown in figure 3, and the two moving plates 14 and most of the baffles 21 are positioned in the moving grooves, so that the moving plates 14 and the baffles 21 can not influence the normal illumination of the plant saplings, and the happiness saplings can grow under the normal illumination;

when the external temperature exceeds 28 ℃, the temperature sensor 2 transmits a signal to the controller, the controller controls the driving motor 6 to operate, so that the threaded rod 7 is driven to rotate clockwise, the two vertical rods 10 are driven to rotate clockwise through the transmission assembly 9, and the threaded sleeve 20 is driven to move downwards by the rotation of the threaded rod 7 due to the fact that the thread directions of the threaded layers on the threaded rod 7 and the threaded layers on the two vertical rods 10 are opposite, and further the pot body 5 and the happy saplings move downwards into the culture tank 3;

the clockwise rotation of the two vertical rods 10 drives the two sliders 12 to move upwards, so as to drive the moving plate 14 and the baffle 21 to move upwards, and when the slider 12 on the left side moves to be in contact with the two conducting strips 13, the two first springs 19 are powered on;

after the two first springs 19 are electrified, according to the electromagnetic effect, each coil can generate a magnetic field, the directions of the magnetic fields generated by every two adjacent coils are opposite, every two adjacent coils attract each other, so that the two first springs 19 contract, the moving block 18 drives the two first racks 16 to move downwards, the two first racks 16 move downwards to drive the first rotating gear 22 to rotate, the two baffles 21 rotate (the baffle 21 on the left side rotates clockwise, the baffle 21 on the right side rotates anticlockwise), and after the upper ends of the two baffles 21 are contacted with each other, the controller controls the driving motor 6 to be powered off, the baffles 21 can shield the tree seedlings, so that the situation that the evaporation speed of water in the tree seedlings is too high due to only irradiation of sunlight in high-temperature weather and the growth of the lucky tree seedlings is influenced is avoided;

when the two sliding blocks 12 move upwards, the two folding air bags 11 are stretched, water in the bottom space of the culture tank 3 is sucked into the two folding air bags 11, meanwhile, water in the bottom space of the culture tank 3 evaporates quickly under the high-temperature state, and soil of the saplings is closer to the water surface, so that the saplings can better absorb water under the high-temperature weather, and the influence of high temperature on the saplings is reduced;

when the temperature is reduced to below 28 ℃, the electric signal generated by the temperature sensor 2 is transmitted to the controller, the controller controls the driving motor 6 to be electrified again, so that the driving motor 6 drives the threaded rod 7 to rotate anticlockwise, the threaded sleeve 20 drives the sapling to move upwards at the moment, meanwhile, the two vertical rods 10 rotate anticlockwise to drive the slide block 12 to move upwards, when the slide block 12 on the left side moves downwards to be separated from the two conductive plates 13, the two first springs 19 are powered off, the moving block 18 and the first rack 16 move upwards under the elastic action of the first springs 19, the two first rotating gears 22 rotate anticlockwise, the two baffles 21 rotate to be in a vertical state, then the moving plate 14 and the baffles 21 move downwards to the moving grooves along with the downward movement of the slide block 12, and when the two slide blocks 12 move downwards to the lowest part, the controller controls the driving motor 6 to be powered off at the moment, the sapling is exposed again, and the sapling is convenient to perform illumination effect;

two sliders 12 move down this moment and can compress two folding gasbags 11, thereby make the space increase in two folding gasbags 11, atmospheric pressure reduces, thereby make the water in two folding gasbags 11 impressed to two hollow plates 17 in, thereby with water spraying on the sapling, cool down the processing to the sapling, the sapling shifts up on one side simultaneously, two hollow plates 17 water spraying on one side, thereby can carry out even water spray on two saplings, water the sapling and handle, simultaneously because the temperature is lower this moment, the evaporation of water on the blade is slower, thereby make the sapling can absorb moisture as much as possible.

Compared with the prior art, when the external temperature exceeds 28 ℃ in summer, the sapling can be taken into the culture tank 3, and the two baffles 21 move upwards and deflect to shield the sapling, so that the situation that the water evaporation speed in the sapling is high due to direct irradiation of sunlight is avoided, and the normal growth of the sapling in summer is ensured;

when high temperature, the sapling gets into and is close to the surface of water more behind the culture tank 3, and the evaporation water can be better by the sapling absorption this moment to reduce high temperature and cause the too much condition of moisture evaporation in the sapling to appear, simultaneously when the temperature is lower, can spray water on the sapling, and then supply the moisture of sapling evaporation, ensure after the temperature reduces, the sapling can normal growth.

Example 2

Referring to fig. 4-5, the present embodiment is different from embodiment 1 in that a reciprocating chamber is provided in a case 1, the end of an output shaft of a driving motor 6 extends into the reciprocating chamber and is fixedly connected with an incomplete gear, two telescopic rods are installed at the inner bottom of the reciprocating chamber, a fixing plate 32 is fixedly connected to the telescopic ends of the two telescopic rods, the lower end of the fixing plate 32 is elastically connected to the inner bottom of the reciprocating chamber through two second springs 25, the two second springs 25 have electrical conductivity, a control switch is provided and is controlled by a controller, the control switch is electrically connected to the two second springs 25 through a wire, the control switch and the two second springs 25 are connected in parallel in a closed loop of the two first springs 19, the upper end of the fixing plate 32 is rotatably connected to a rectangular rod 30, the lower extreme of threaded rod 7 is equipped with rectangular channel 29, the upper end of rectangular rod 30 extends to in rectangular channel 29, be equipped with second rotating gear 31 on the rectangular rod 30, reciprocating intracavity is equipped with piston 26, piston 26 and reciprocating cavity's inner wall sliding connection, piston 26's the left side passes through third spring 27 elastic connection with reciprocating cavity's left side inner wall, piston 26's right side fixedly connected with and incomplete gear matched with second rack 24, reciprocating cavity's left side space and external through the intake pipe intercommunication, reciprocating cavity's left side space and two hollow plates 17 pass through three-way pipe 28 intercommunication, be equipped with the check valve on intake pipe and the three-way pipe 28, external gas passes through the intake pipe one-way and gets into to reciprocating cavity's left side space in, reciprocating cavity left side space's gas passes through three-way pipe 28 one-way and gets into to two hollow plates 17 in.

In this embodiment, in an initial state, the incomplete gear and the second rotating gear 31 are in a meshed state, at this time, the operation of the driving motor 6 can be enabled to rotate by the threaded rod 7, when the temperature is high, the control switch is closed at this time, because the first spring 19 is not powered on, the two second springs 25 are also in a power-off state at this time, the driving motor 6 is always in an operating state at this time, when the two first springs 19 are powered on, the two second springs 25 are also in a power-on state at this time, so that the two second springs 25 are also contracted to drive the fixing plate 32 to move down, the second rotating gear 31 is made to move down to be disengaged from the incomplete gear at this time, the two baffles 21 just complete shielding of the tree seedling, the driving motor 6 is always in a power-on state at this time, so that the incomplete gear continuously rotates, and the piston 26 drives the second rack 24 to move left and right;

the piston 26 moves to the right to suck external air into the space on the left side of the reciprocating cavity, when the piston 26 moves to the left, the air in the reciprocating cavity is pressed into the two hollow plates 17 and sprayed onto the two saplings, so that the air around the saplings can be always in a circulating state in high-temperature weather, and the condition that insect pests are generated on the saplings due to the fact that the air is not circulated is avoided;

after ambient temperature is lower, can make this moment the controller lead to the control switch disconnection, though the electrically conductive unit is in the state of conducting this moment, two second springs 25 outage for under two second springs 25's elastic action, make fixed plate 32 drive rectangular pole 30 shift up, incomplete gear meshing with second rotating gear 31 again this moment, after the sapling exposes again, the controller can control driving motor 6 outage this moment can.

Compared with the prior art, when high temperature, shelter from the back when baffle 21 to the sapling, incomplete gear and second rotating gear 31 can break away from this moment to utilize the rotation of incomplete gear to drive piston 26 and remove about, and then gas flow around the sapling with higher speed avoids not circulating the condition that leads to the production insect pest on the sapling appearing sheltering from back sapling around the gas.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (7)

1. The utility model provides a forestry is with happy sapling cultured equipment, includes box (1), its characterized in that: the upper end of the box body (1) is provided with a culture tank (3), the culture tank (3) is provided with a basin body (5), the upper end of the basin body (5) is symmetrically provided with two placing grooves (4), the lower end of the basin body (5) is fixedly connected with a threaded sleeve (20), the lower end of the box body (1) is provided with a driving motor (6), the tail end of an output shaft of the driving motor (6) is fixedly connected with a threaded rod (7), the upper end of the threaded rod (7) extends into the threaded sleeve (20) and is in threaded connection with the inner wall of the threaded sleeve (20), the upper end of the box body (1) is provided with two moving grooves, the inner bottoms of the two moving grooves are rotatably connected with vertical rods (10), two vertical rods (10) are respectively provided with a threaded layer, two sliding blocks (12) are respectively in threaded connection with the threaded layer, the two sliding blocks (12) are slidably connected with the inner wall of the moving grooves, the upper ends of the two sliding blocks (12) are respectively and are fixedly connected with two connecting rods, the upper ends of the two connecting rods are respectively and are respectively fixedly connected with a moving plate (14), two mounting blocks (23) and two rotating blocks (21) and are respectively fixedly connected with two rotating blocks (23), and two rotating blocks (21) which are matched with the upper ends of the adjacent rotating plates;

two the upper end of movable plate (14) all erects groove (15), two all be equipped with the removal subassembly in erecting groove (15), the removal subassembly is used for controlling baffle (21) and rotates.

2. The apparatus of claim 1, wherein: the moving assembly comprises a moving block (18) arranged in a vertical groove (15), the moving block (18) is connected with the inner wall of the vertical groove (15) in a sliding mode, the lower end of the moving block (18) is elastically connected with the inner bottom of the vertical groove (15) through a first spring (19), a first rack (16) is fixedly connected to the upper end of the moving block (18), and a first rotating gear (22) matched with the first rack (16) is fixedly connected to the rotating rod.

3. The apparatus of claim 1, wherein: be equipped with horizontal chamber (8) in box (1), threaded rod (7) run through horizontal chamber (8), two the lower extreme of montant (10) all extends to in horizontal chamber (8), threaded rod (7) are connected through drive assembly (9) transmission with two montants (10), drive assembly (9) are including setting up the sprocket on threaded rod (7) and two montants (10), and are three the sprocket passes through chain drive and connects.

4. The forest happiness sapling cultivation device as claimed in claim 1, wherein: temperature sensor (2) are installed in the left side of box (1), are located the left slider (12) have electric conductivity, are located the left all be equipped with conducting strip (13) on the left and right sides inner wall of shifting chute, two conducting strip (13) constitute a conducting component with slider (12) that are located the left, first spring (19) have electric conductivity, conducting component is used for controlling the on-off of two first springs (19).

5. The apparatus of claim 4, wherein: two the lower extreme of slider (12) all is equipped with folding gasbag (11), two one side that slider (12) were kept away from in folding gasbag (11) and the interior bottom fixed connection of shifting chute, the bottom space packing of culture trough (3) has water, it has two hollow core boards (17), two to imbed on the left and right sides inner wall of culture trough (3) the looks proximal surface of hollow core board (17) all is equipped with the delivery port, two inlet tube intercommunication is passed through with the bottom space of culture trough (3) in folding gasbag (11), two outlet pipe intercommunication is passed through with corresponding hollow core board (17) in folding gasbag (11), two all be equipped with the check valve on inlet tube and the outlet pipe.

6. The apparatus of claim 1, wherein: be equipped with the reciprocating cavity in box (1), the output shaft end of driving motor (6) extends to reciprocal intracavity and the incomplete gear of fixedly connected with, two telescopic links are installed, two to the interior bottom in reciprocating cavity the common fixedly connected with fixed plate (32) of the flexible end of telescopic link, the lower extreme of fixed plate (32) and the interior bottom in reciprocating cavity are through two second springs (25) elastic connection, the upper end of fixed plate (32) is rotated and is connected with rectangular bar (30), the lower extreme of threaded rod (7) is equipped with rectangular channel (29), the upper end of rectangular bar (30) extends to in rectangular channel (29), be equipped with second rotating gear (31) on rectangular bar (30).

7. The apparatus of claim 6, wherein: the reciprocating cavity is internally provided with a piston (26), the piston (26) is in sliding connection with the inner wall of the reciprocating cavity, the left side of the piston (26) is elastically connected with the inner wall of the left side of the reciprocating cavity through a third spring (27), the right side of the piston (26) is fixedly connected with a second rack (24) which is not matched with a complete gear, the left space of the reciprocating cavity is communicated with the outside through an air inlet pipe, the left space of the reciprocating cavity is communicated with two hollow plates (17) through a three-way pipe (28), and the air inlet pipe and the three-way pipe (28) are provided with one-way valves.

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