Cooling and humidifying device for cutting seedling in summer

Abstract

The utility model discloses a summer cuttage seedling cooling and humidifying device which comprises a main body assembly, the main body assembly comprises a seedling chamber, a chamber roof, a seedling frame, a supporting frame, a spraying piece, an adjusting box, an adjusting piece, a cooling fan, a cooling hole, a fixing sleeve, a limiting block, a supporting block, a drainage groove, a drainage pipe and a recycling piece, and the chamber roof is arranged at the top of the seedling chamber; the seedling raising frame is arranged in the seedling raising chamber. The seedling raising device has the advantages that the effect of spraying and cooling the seedling raising chamber and the seedling raising frame is achieved by arranging the spraying piece, the spraying angle can be adjusted by arranging the adjusting piece, the spraying range is widened, the effect of cooling the interior of the seedling raising chamber is achieved by arranging the cooling fan, and the seedling raising device is convenient to use. The effect of recycling the spraying water is achieved through the recycling part, the effect of humidifying the interior of the seedling raising chamber is achieved through the arrangement of the humidifying assembly, and the humidifying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plant cultivation, in particular to a device for cooling and moistening seedlings during cutting in summer. Background Art

[0002] Cutting propagation is an important technology for asexual reproduction using the stems, leaves, roots and other organs of plants based on the principle of the totipotency of plant cells. It has been widely used in seedling production. Cutting seedling cultivation has the advantages of convenience, low cost and fast seedling formation, but cutting seedling cultivation has high requirements for the environment. Greenhouse cuttings in summer need to have appropriate temperature and humidity to ensure the survival of cutting seedlings. Therefore, a cooling device is needed to cool the seedling room. When cooling the seedling room, the existing cooling device usually uses a cooling fan in conjunction with a nozzle to spray and cool the seedling room. However, the spray position of the nozzle is relatively fixed, and the spray angle cannot be adjusted. The spraying is not uniform enough, and there will be dead corners for spraying and cooling, which can easily lead to the problem of high local temperature in the seedling room. When humidifying the seedling room, it is usually humidified by a mist humidifier. The humidification range of the mist humidifier is small, and moisture needs to fall continuously from a high altitude, and the humidification efficiency is low. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above-mentioned and / or existing problems in the existing cooling and humidifying devices for summer cutting seedling cultivation, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the utility model is that when cooling the seedling room, the prior art usually uses a cooling fan in conjunction with a nozzle to spray and cool the seedling room, but the spray position of the nozzle is relatively fixed, and the spray angle cannot be adjusted. The spraying is not uniform enough, and there will be dead corners for spraying and cooling, which can easily lead to the problem of high local temperature in the seedling room. In addition, when humidifying the seedling room, it is usually humidified by an atomizing humidifier. The humidification range of the atomizing humidifier is small, and moisture needs to fall continuously from a high altitude, and the humidification efficiency is low.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a summer cutting seedling cooling and humidifying device, which includes a main body component, the main body component includes a seedling room, a room roof, a seedling rack, a support frame, a spray part, an adjustment box, an adjustment part, a heat dissipation fan, a heat dissipation hole, a fixing sleeve, a limit block, a support block, a drainage trough, a drainage pipe and a recovery part, the room roof is arranged at the top of the seedling room, the seedling rack is arranged inside the seedling room, the support frame is fixed to the bottom of the inner cavity of the seedling room, the spray part is arranged on the top of the support frame, the adjustment box is fixed to the top of the support frame, the adjustment part is arranged inside the adjustment box, the heat dissipation fan is arranged on the inner wall of the seedling room, and the heat dissipation hole is arranged on the outside of the seedling room. , the fixing sleeve is arranged on the top of the adjusting member, the limiting block is fixed to the outside of the fixing sleeve, the supporting block is arranged on the top of the adjusting member, the drainage groove is arranged at the bottom of the inner cavity of the seedling raising chamber, the drainage pipe is arranged inside the drainage groove, and the recovery member is arranged at one end of the drainage pipe; and a humidifying assembly, the humidifying assembly is arranged inside the seedling raising chamber, and includes a supporting seat, a rotating member, an atomizer body, a humidifying hood, a connecting pipe and a spray head, the rotating member is arranged inside the supporting seat, the atomizer body is arranged on the top of the supporting seat, the humidifying hood is connected to the top of the atomizer body, the connecting pipe is arranged on the top of the atomizer body, and the spray head is arranged on the top of the connecting pipe.

[0007] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the spray part includes a water tank, a water pump and a bellows, the water tank is arranged inside the support frame, the water pump is installed on the top of the support frame, and the bellows is arranged at the water outlet end of the water pump.

[0008] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the spray part also includes a spray hood and a spray head, the spray hood is arranged at one end of the corrugated pipe, and the spray head is arranged on one side of the spray hood.

[0009] As a preferred solution of the summer cutting seedling cooling and humidifying device of the utility model, the adjusting member includes a cylinder and a tooth plate, the cylinder is fixed to the inner wall of the adjusting box, and the tooth plate is fixed to the piston rod of the cylinder.

[0010] As a preferred solution of the summer cutting seedling cooling and humidifying device of the utility model, the adjusting member also includes a gear and a rotating rod, the gear is arranged on the outer side of the tooth plate, and the rotating rod is fixed to the axis of the gear.

[0011] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the adjusting member also includes a limit seat and a fixing frame, the limit seat is fixed to the bottom of the inner cavity of the adjusting box, and the fixing frame is fixed to the inner wall of the adjusting box.

[0012] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the recovery component includes a recovery box and a filter net, the recovery box is arranged at one end of the drain pipe, and the filter net is arranged inside the recovery box.

[0013] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the recovery component also includes a recovery pipe and a recovery water pump, the recovery pipe is arranged on one side of the recovery box, and the recovery water pump is arranged at one end of the recovery pipe.

[0014] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the rotating part also includes a motor, a worm and a worm wheel, the motor is fixed to the inner wall of the support seat, the worm is fixed to the output end of the motor, and the worm wheel is arranged on the outside of the worm.

[0015] As a preferred solution of the summer cutting seedling cooling and humidifying device described in the utility model, the rotating part also includes a driving rod and a supporting plate, the driving rod is fixed at the axis of the worm gear, and the supporting plate is fixed to the top of the driving rod.

[0016] The beneficial effects of the utility model are as follows: by arranging the spraying part, the effect of spraying and cooling the seedling room and the seedling rack is achieved; by arranging the adjusting part, the spraying angle can be adjusted to increase the spraying range; by arranging the cooling fan, the effect of dissipating the heat inside the seedling room is achieved; by the recycling part, the effect of recycling the spray water is achieved; by arranging the humidifying component, the effect of humidifying the inside of the seedling room is achieved, thereby improving the humidification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is the overall structural diagram of the cooling and humidification device for summer cutting seedling cultivation.

[0019] Figure 2 This is a schematic diagram of the structure of the seedling room in the summer cutting seedling cooling and humidification device.

[0020] Figure 3 This is a schematic diagram of the structure of the spray component in the cooling and humidifying device for summer cutting seedling cultivation.

[0021] Figure 4 This is a schematic diagram of the structure of the regulating parts in the cooling and humidifying device for summer cutting seedling cultivation.

[0022] Figure 5 This is a schematic diagram of the structure of the recovery parts in the cooling and humidifying device for summer cutting seedling cultivation.

[0023] Figure 6 This is a schematic diagram of the structure of the humidification component in the cooling and humidification device for summer cutting seedling cultivation.

[0024] Figure 7 Schematic diagram of the structure of the rotating parts in the cooling and humidifying device for summer cutting seedling cultivation

[0025] Numbers in the figure: 100, main assembly; 101, seedling room; 102, room top; 103, seedling rack; 104, support frame; 105, spray part; 105a, water storage tank; 105b, water pump; 105c, bellows; 105d, spray cover; 105e, nozzle; 106, adjustment box; 107, adjustment part; 107a, cylinder; 107b, tooth plate; 107c, gear; 107d, rotating rod; 107e, limit seat; 107f, fixing frame; 108, cooling fan; 109, cooling hole; 110, Fixed sleeve; 111, limit block; 112, support block; 113, drain trough; 114, drain pipe; 115, recovery part; 115a, recovery box; 115b, filter screen; 115c, recovery pipe; 115d, recovery water pump; 200, humidification component; 201, support seat; 202, rotating part; 202a, motor; 202b, worm; 202c, worm wheel; 202d, drive rod; 202e, support plate; 203, atomizer body; 204, humidification cover; 205, connecting pipe; 206, spray head. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 to Figure 7 , which is the first embodiment of the utility model, and this embodiment provides a device for cooling and humidifying seedlings in summer, including a main component 100 and a humidifying component 200. By setting the main component 100, the seedlings can be sprayed and cooled, and the heat can be absorbed and discharged. By setting the humidifying component, the humidification effect can be achieved.

[0031] The main body component 100 includes a seedling room 101, a room top 102, a seedling rack 103, a support frame 104, a spray part 105, an adjustment box 106, an adjustment part 107, a cooling fan 108, a cooling hole 109, a fixing sleeve 110, a stop block 111, a support block 112, a drainage trough 113, a drainage pipe 114 and a recovery part 115. The room top 102 is arranged on the top of the seedling room 101, the seedling rack 103 is arranged inside the seedling room 101, the support frame 104 is fixed to the bottom of the inner cavity of the seedling room 101, and the spray part 105 is arranged on the inner cavity of the seedling room 101. At the top, the adjusting box 106 is fixed to the top of the supporting frame 104, the adjusting member 107 is arranged inside the adjusting box 106, the cooling fan 108 is arranged on the inner wall of the seedling room 101, the cooling hole 109 is arranged on the outside of the seedling room 101, the fixing sleeve 110 is arranged on the top of the adjusting member 107, the limiting block 111 is fixed to the outside of the fixing sleeve 110, the supporting block 112 is arranged on the top of the adjusting member 107, the drainage groove 113 is arranged at the bottom of the inner cavity of the seedling room 101, the drainage pipe 114 is arranged inside the drainage groove 113, and the recovery member 115 is arranged at one end of the drainage pipe 114.

[0032] The spraying component 105 is used to spray and cool the seedling room 101 and the seedling rack 103. The spraying angle can be adjusted by the regulating box 106 to increase the spraying range. The heat dissipation fan 108 can be used to dissipate heat inside the seedling room and further cool the seedling room. The recycling component 115 can be used to recycle the spray water.

[0033] The humidifying assembly 200 is arranged inside the seedling chamber 101, and includes a support seat 201, a rotating member 202, an atomizer body 203, a humidifying hood 204, a connecting pipe 205 and a spray head 206. The rotating member 202 is arranged inside the support seat 201, the atomizer body 203 is arranged at the top of the support seat 201, the humidifying hood 204 is connected to the top of the atomizer body 203, the connecting pipe 205 is arranged at the top of the atomizer body 203, and the spray head 206 is arranged at the top of the connecting pipe 205.

[0034] The atomizer body 203 is of the prior art. The lower part of the nursery room 101 can be humidified through the humidifying cover 204, and the upper part of the nursery room 101 can be humidified through the connecting pipe 205 and the spray head 206, thereby increasing the humidification range.

[0035] Example 2

[0036] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0037] Specifically, the spray element 105 includes a water tank 105a, a water pump 105b and a bellows 105c. The water tank 105a is arranged inside the support frame 104, the water pump 105b is installed on the top of the support frame 104, and the bellows 105c is arranged at the water outlet end of the water pump 105b.

[0038] A water inlet is provided on one side of the water tank 105a, and the water inlet end of the water pump 105b is connected to one side of the water tank 105a through a pipeline. The bellows 105c is a prior art and can be stretched and rotated.

[0039] Specifically, the spraying member 105 further includes a spraying hood 105d and a spray head 105e. The spraying hood 105d is arranged at one end of the bellows 105c, and the spray head 105e is arranged at one side of the spraying hood 105d. The bottom of the spraying hood 105d is fixedly connected to the top of the support block 112.

[0040] One end of the bellows 105c is connected to one side of the spray hood 105d, and multiple groups of nozzles 105e are provided. The water source inside the water storage tank 105a is pumped out through the water pump 105b, and the seedling rack 103 is sprayed and cooled through the spray hood 105d and the nozzles 105e.

[0041] Specifically, the adjusting member 107 includes a cylinder 107a and a tooth plate 107b. The cylinder 107a is fixed to the inner wall of the adjusting box 106, and the tooth plate 107b is fixed to the piston rod of the cylinder 107a.

[0042] The cylinder 107a is installed at the bottom of the inner cavity of the adjustment box 106.

[0043] Specifically, the adjusting member 107 further includes a gear 107c and a rotating rod 107d. The gear 107c is disposed on the outer side of the toothed plate 107b, and the rotating rod 107d is fixed to the axis of the gear 107c.

[0044] The outer side of the gear 107c is meshed with the outer side of the tooth plate 107b, the bottom of the rotating rod 107d is rotatably connected to the bottom of the inner cavity of the adjustment box 106, the fixing sleeve 110 is fixed to the outer side of the rotating rod 107d, and the top of the rotating rod 107d is fixedly connected to the bottom of the support block 112.

[0045] Specifically, the adjusting member 107 further includes a limiting seat 107e and a fixing frame 107f. The limiting seat 107e is fixed to the bottom of the inner cavity of the adjusting box 106, and the fixing frame 107f is fixed to the inner wall of the adjusting box 106.

[0046] The bottom of the tooth plate 107b is slidably connected to the inner wall of the limit seat 107e, and the inner wall of the fixing frame 107f is rotatably connected to the outer side of the rotating rod 107d. The starting cylinder 107a drives the tooth plate 107b to move, so that the tooth plate 107b slides inside the limit seat 107e, and the tooth plate 107b drives the gear 107c and the rotating rod 107d to rotate, drives the support block 112 to rotate, and drives the spray hood 105d to rotate, thereby achieving the effect of adjusting the spray angle and increasing the spray range. The rotating rod 107d can be limited by the limit block 111 to avoid the problem of excessive rotation angle.

[0047] Specifically, the recovery unit 115 includes a recovery box 115a and a filter 115b. The recovery box 115a is disposed at one end of the drain pipe 114, and the filter 115b is disposed inside the recovery box 115a.

[0048] The spray water enters the recovery box 115 a through the drainage groove 113 and the drainage pipe 114 , and the impurities in the spray water are filtered through the filter 115 b .

[0049] Specifically, the recovery member 115 further includes a recovery pipe 115c and a recovery water pump 115d. The recovery pipe 115c is disposed at one side of the recovery box 115a, and the recovery water pump 115d is disposed at one end of the recovery pipe 115c.

[0050] The water outlet end of the recovery water pump 115d is connected to one side of the water storage tank 105a through a pipeline. The spray water inside the recovery tank 115a is recovered to the inside of the water storage tank 105a for recycling through the recovery water pump 115d, thereby reducing water waste.

[0051] Example 3

[0052] Reference Figure 6 and Figure 7 , which is the third embodiment of the utility model, and this embodiment is based on the first two embodiments.

[0053] Specifically, the rotating member 202 further includes a motor 202a, a worm 202b and a worm wheel 202c. The motor 202a is fixed to the inner wall of the support base 201, the worm 202b is fixed to the output end of the motor 202a, and the worm wheel 202c is arranged on the outer side of the worm 202b.

[0054] The outer side of the worm wheel 202c is meshingly connected with the worm 202b.

[0055] Specifically, the rotating member 202 further includes a driving rod 202d and a supporting plate 202e. The driving rod 202d is fixed at the axis of the worm gear 202c, and the supporting plate 202e is fixed to the top of the driving rod 202d.

[0056] The top of the support plate 202e is fixedly connected to the bottom of the atomizer body 203. The starting motor drives the worm 202b to rotate, which causes the worm wheel 202c to rotate, drives the driving rod 202d and the support plate 202e to rotate, and causes the atomizer body 203 to rotate, thereby achieving the effect of adjusting the humidification angle and making the humidification effect more uniform.

[0057] When in use, the water source inside the water storage tank 105a is pumped out through the water pump 105b, and the seedling rack 103 is sprayed and cooled through the spray cover 105d and the nozzle 105e. The cylinder 107a is started to drive the tooth plate 107b to move, so that the tooth plate 107b slides inside the limit seat 107e, and the tooth plate 107b drives the gear 107c and the rotating rod 107d to rotate, drives the support block 112 to rotate, and drives the spray cover 105d to rotate, thereby achieving the effect of adjusting the spray angle and increasing the spray range. The rotating rod 107d can be limited by the limit block 111 to avoid the problem of excessive rotation angle. The spray water enters the recovery box 115a through the drain groove 113 and the drain pipe 114, and the impurities in the spray water are removed through the filter screen 115b. The filter is filtered, and the water outlet end of the recovery water pump 115d is connected to one side of the water storage tank 105a through a pipeline. The spray water inside the recovery box 115a is recovered to the water storage tank 105a for recycling through the recovery water pump 115d, thereby reducing water waste. The atomizer body 203 is a prior art. The lower part of the seedling room 101 can be humidified through the humidifying hood 204, and the higher part of the seedling room 101 can be humidified through the connecting pipe 205 and the spray head 206, thereby increasing the humidification range. The starting motor drives the worm 202b to rotate, so that the worm wheel 202c rotates, drives the driving rod 202d and the supporting plate 202e to rotate, and rotates the atomizer body 203, thereby achieving the effect of adjusting the humidification angle, making the humidification effect more uniform, and improving the humidification efficiency.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A device for cooling and moistening seedlings for cutting in summer, characterized in that: include, A main body component (100), the main body component (100) comprising a seedling raising chamber (101), a chamber top (102), a seedling raising frame (103), a support frame (104), a spraying component (105), an adjusting box (106), an adjusting component (107), a cooling fan (108), a cooling hole (109), a fixing sleeve (110), a stop block (111), a support block (112), a drainage trough (113), a drainage pipe (114) and a recovery component (115), the chamber top (102) being arranged at the top of the seedling raising chamber (101), the seedling raising frame (103) being arranged inside the seedling raising chamber (101), the support frame (104) being fixed to the bottom of the inner cavity of the seedling raising chamber (101), the spraying component (105) being arranged at the top of the support frame (104), the ... The box (106) is fixed to the top of the support frame (104), the adjusting member (107) is arranged inside the adjusting box (106), the heat dissipation fan (108) is arranged on the inner wall of the seedling raising chamber (101), the heat dissipation hole (109) is arranged on the outside of the seedling raising chamber (101), the fixing sleeve (110) is arranged on the top of the adjusting member (107), the limiting block (111) is fixed to the outside of the fixing sleeve (110), the supporting block (112) is arranged on the top of the adjusting member (107), the drainage groove (113) is arranged at the bottom of the inner cavity of the seedling raising chamber (101), the drainage pipe (114) is arranged inside the drainage groove (113), and the recovery member (115) is arranged at one end of the drainage pipe (114); and, A humidifying assembly (200), wherein the humidifying assembly (200) is arranged inside the seedling raising chamber (101), and comprises a supporting seat (201), a rotating member (202), an atomizer body (203), a humidifying hood (204), a connecting pipe (205) and a spray head (206), wherein the rotating member (202) is arranged inside the supporting seat (201), the atomizer body (203) is arranged at the top of the supporting seat (201), the humidifying hood (204) is connected to the top of the atomizer body (203), the connecting pipe (205) is arranged at the top of the atomizer body (203), and the spray head (206) is arranged at the top of the connecting pipe (205).

2. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 1, characterized in that: The spraying element (105) comprises a water storage tank (105a), a water pump (105b) and a bellows (105c); the water storage tank (105a) is arranged inside the support frame (104); the water pump (105b) is installed on the top of the support frame (104); and the bellows (105c) is arranged at the water outlet end of the water pump (105b).

3. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 2, characterized in that: The spraying member (105) further comprises a spraying hood (105d) and a spray head (105e); the spraying hood (105d) is arranged at one end of the corrugated tube (105c), and the spray head (105e) is arranged at one side of the spraying hood (105d).

4. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 1, characterized in that: The regulating member (107) comprises a cylinder (107a) and a tooth plate (107b), wherein the cylinder (107a) is fixed to the inner wall of the regulating box (106), and the tooth plate (107b) is fixed to the piston rod of the cylinder (107a).

5. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 4, characterized in that: The adjusting member (107) further comprises a gear (107c) and a rotating rod (107d), wherein the gear (107c) is arranged on the outside of the toothed plate (107b), and the rotating rod (107d) is fixed at the axis center of the gear (107c).

6. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 5, characterized in that: The regulating member (107) further comprises a limiting seat (107e) and a fixing frame (107f), wherein the limiting seat (107e) is fixed to the bottom of the inner cavity of the regulating box (106), and the fixing frame (107f) is fixed to the inner wall of the regulating box (106).

7. The device for cooling and moistening summer cutting seedlings as claimed in claim 1, characterized in that: The recovery member (115) comprises a recovery box (115a) and a filter net (115b); the recovery box (115a) is arranged at one end of the drainage pipe (114); and the filter net (115b) is arranged inside the recovery box (115a).

8. The device for cooling and moistening the cutting seedlings in summer as claimed in claim 7, characterized in that: The recovery member (115) further comprises a recovery pipe (115c) and a recovery water pump (115d); the recovery pipe (115c) is arranged at one side of the recovery box (115a); and the recovery water pump (115d) is arranged at one end of the recovery pipe (115c).

9. The device for cooling and moistening summer cutting seedlings as claimed in claim 1, characterized in that: The rotating member (202) further comprises a motor (202a), a worm (202b) and a worm wheel (202c); the motor (202a) is fixed to the inner wall of the support seat (201); the worm (202b) is fixed to the output end of the motor (202a); and the worm wheel (202c) is arranged on the outer side of the worm (202b).

10. The device for cooling and moistening seedlings during cutting in summer according to claim 9, characterized in that: The rotating member (202) further comprises a driving rod (202d) and a supporting plate (202e), wherein the driving rod (202d) is fixed at the axis of the worm wheel (202c), and the supporting plate (202e) is fixed at the top of the driving rod (202d).

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