CN213811434U

CN213811434U - Tea leaf airing device

Info

Publication number: CN213811434U
Application number: CN202021573011.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Yunxi County Yongli Agriculture And Animal Husbandry Technology Co ltd
Current assignee: Yunxi County Yongli Agriculture And Animal Husbandry Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-07-27
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a tealeaves drying device, box including the level setting, the riser of the vertical setting of bottom center department symmetry fixed connection in the box. The utility model has the advantages that: the utility model provides a pair of tealeaves drying device, the motor drive driving gear drives two driven gear rotations, driven gear rotates and can drives the screw drive movable plate and place the frame and pass and stretch out to the outside of placing the frame from the opening, the disintegrating slag that falls down on dust in the tealeaves and the tealeaves passes through the round hole and drops to the collection in the garbage bin, rotate the bracing piece and reset locking second locking bolt that resets under the condition that meets the weather sudden change, the motor drive driving gear drives two driven gear rotations, driven gear rotates and can drive the screw drive movable plate and will place the frame and pull back the box internal reset. Loosening the first locking bolt and rotating the fixed rod through the first handle drives the supporting plate to rotate, so that the supporting plate can drive the solar photovoltaic panel to rotate.

Description

Tea leaf airing device

Technical Field

The utility model relates to a tea processing technology field specifically is a tealeaves drying device.

Background

Tea is a common beverage in people's life, and it is deeply loved by people with unique taste, and tea has multiple health preserving efficiency, is the indispensable good item of family travel, in the course of tea processing, one of its important step during the sunning, in this in-process, needs to use drying device, but, current drying device for tea processing has some defects. The airing device for tea processing in the prior art has the following problems: present drying device for tea processing uses the manual work to extract and the propelling movement to tealeaves sunning box usually, but if meet the weather sudden change, can't in time carry out the propelling movement to all tealeaves sunning boxes, the rainwater drenches on tealeaves, can bring the unnecessary loss, and present drying device for tea processing's backup pad can not accomodate, is in the less than occupation space of time when not suitable for. Therefore, CN 210726059U discloses an airing device for tea processing, which comprises a box body, wherein a first placing groove is arranged in the box body close to the lower part, four tea placing boxes are uniformly placed in the first placing groove, a limiting sliding groove is formed in the tea placing box close to the lower part, a limiting sliding block is fixed above the first placing groove and at a position corresponding to the limiting sliding groove, a second placing groove is formed in the box body close to the upper part, a threaded rod is placed in the second placing groove, a limiting rotating block is arranged below the threaded rod, a limiting rotating groove is formed in the box body and at a position corresponding to the limiting rotating block, a motor is arranged above the limiting rotating block and at a position above the box body, a motor protecting shell is fixed outside the motor, a threaded block is arranged outside the threaded rod, and a rotating rod is arranged between the threaded block and the tea placing boxes, the both sides of dwang all are provided with first connecting plate, all rotate through the third pivot between dwang and the first connecting plate and connect, the position department that the box below was placed to the outside of box and corresponding tealeaves is fixed with the support inner panel, one side that the box was kept away from to the support inner panel is provided with the support planking, support and rotate through the first pivot between the planking and the support inner panel and connect, the below of box is provided with the support base, the inside of support base just corresponds the position department that supports the inner panel and support the planking and has seted up the third standing groove, electric putter has been placed to the inside of third standing groove, one side that electric putter is close to the support inner panel and supports the planking is provided with the connecting axle, connect through the bracing piece between connecting axle and the support planking, the below that supports the planking just corresponds the position department of bracing piece is provided with the second connecting. Above-mentioned drying device for tea processing is through setting up spacing rotatory piece, spacing rotatory groove, spacing spout, spacing slider, the second standing groove, the motor protective housing, including a motor, an end cap, a controller, and a cover plate, the threaded rod, the thread piece, first connecting plate, dwang and third pivot isotructure, under the mutually supporting of these structures, realized can placing the function that the box extracted and the propelling movement were placed to tealeaves simultaneously, effectively avoided the weather sudden change, can't in time place the box propelling movement to all tealeaves, the condition that the rainwater drenched tealeaves appears, economic loss has been reduced, mechanical operation, degree of automation is high. Through setting up first pivot, supporting planking, second pivot, second connecting plate, bracing piece, connecting axle, supporting inner panel, third standing groove and electric putter isotructure, under the mutually supporting of these structures, realized supporting the function that the planking was convenient for to accomodate, and then reduced the area of the device when not using, simple structure, convenient operation, maneuverability is strong. However, when the drying device for tea processing is used, dust adhered to tea leaves drops off when the tea leaves are dried, crushed slag in the tea leaves in the dust box falling on the tea leaves cannot be screened out and collected, and therefore the quality of the tea leaves is affected, and power utilization equipment in the drying device is inconvenient to supply power by an external power supply.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tealeaves drying device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a tea leaf airing device comprises a box body which is horizontally arranged, wherein vertically arranged vertical plates are symmetrically and fixedly connected at the center of the inner bottom of the box body, horizontally arranged screw rods are respectively and rotatably matched between the two vertical plates and the inner wall of the box body, one ends of the two screw rods, far away from the inner wall of the box body, are respectively and horizontally penetrated through the corresponding vertical plates and are oppositely arranged, one ends of the two screw rods, opposite to each other, are respectively and fixedly connected with vertically arranged vertical rods, the upper ends of the two vertical rods are respectively and fixedly connected with horizontally arranged transverse plates, a motor is arranged on the upper side of each transverse plate, a main shaft of the motor vertically penetrates through the transverse plates downwards, a driving gear which is horizontally arranged is fixedly connected at the tail end of a main shaft of the motor, the driving gear is meshed with the two driven gears, the other ends of the two screw rods are respectively and rotatably matched with the inner wall of the box body, and the moving plates which are vertically arranged are respectively and rotatably matched with the outer side of each screw rod in a threaded manner, one side, facing the inner wall of the box body, of each movable plate is fixedly connected with a horizontally arranged placing frame, a horizontally arranged airing frame is placed in each placing frame, the upper end of each airing frame vertically and upwards extends to the outer side of the corresponding placing frame, round holes are uniformly formed in the bottom of each airing frame, openings are formed in the outer sides, opposite to the box body, of each opening, and each opening is arranged opposite to the corresponding placing frame;

the upside center department of box is equipped with the rotation piece, rotates the dead lever of the vertical setting of upside fixed connection of piece, the backup pad that the upper end fixed connection level of dead lever set up, and the upper end of backup pad is equipped with the mounting panel that the slope set up, and a set of solar photovoltaic board is equipped with to the upside of mounting panel, still be equipped with the battery at the upside of box.

Preferably, the rotation piece is including rotating seat and turning block, rotates the horizontal fixed connection of seat in the upside center department of box, the upside of rotating the seat is equipped with the rotation groove that the level set up, the turning block normal running fit is connected at the rotation inslot, the vertical fixed connection of dead lever is at the upside of turning block, one side of rotating the seat is equipped with first screw hole, first screw hole with rotate the groove and communicate mutually, and first screw hole internal thread fit is connected and is used for the first locking bolt with turning block locking.

Preferably, every is placed the frame and is close to the equal fixed connection square of open-ended downside, all is equipped with the rotation hole that the level set up on every square, and every rotates the downthehole dwang that all normal running fit connects the level setting, and the one end fixed connection bracing piece of square is kept away from to the dwang, the bracing piece can rotate through the dwang, and the one end that the dwang was kept away from to the bracing piece is equipped with the lift hole, and the downthehole sliding fit of lift connects the lifter.

Preferably, the downside of square is equipped with the second screw hole, the second screw hole with rotate the hole intercommunication, second screw hole internal thread fit connection is used for the second locking bolt with dwang locking, one side below of bracing piece is equipped with the third screw hole, the third screw hole with lift hole intercommunication, third screw hole internal thread fit connection is used for the third locking bolt with lifter locking.

Preferably, the bottom symmetry is equipped with the spout that the level set up in the box, and two spouts set up respectively the below of two screws, equal sliding fit connects the slider in two spouts, the downside of two movable plates respectively with rather than the upside fixed connection who corresponds the slider.

Preferably, every places the locating lever that the bottom all symmetry was equipped with two vertical settings in the frame, the below both sides edge of every sunning frame all is equipped with the locating hole of vertical setting, the locating hole with the locating lever one-to-one grafting cooperation is connected, every places the waste material box that the bottom all was equipped with the level and sets up in the frame, the waste material box setting just sets up with the round hole is relative between two locating levers.

Preferably, two fans which are horizontally arranged are symmetrically arranged at the top in the box body, the fans are arranged in one-to-one correspondence with the airing frames, and universal wheels are arranged at four corners of the lower side of the box body.

Preferably, a first handle is arranged on the outer side of the fixing rod, reinforcing ribs are symmetrically arranged between the fixing rod and the lower side of the supporting plate, and the lower side of the mounting plate is fixedly connected with the upper side of the supporting plate through a push rod.

Compared with the prior art, the beneficial effects of the utility model are that: the motor drives the driving gear to drive the two driven gears to rotate, the driven gears can drive the screw rod to drive the movable plate to drive the placing frame to penetrate through the opening and extend out of the placing frame, tea leaves to be aired are evenly placed in the airing frame, the airing frame is horizontally placed in the placing frame through the second handle, the airing frame can be positioned through the positioning rod and the positioning hole to prevent the airing frame from shaking, dust in the tea leaves and broken slag falling from the tea leaves fall into the waste box through the circular hole to be collected, the supporting rod is vertically and downwards arranged by loosening the second locking bolt to rotate the supporting rod, the lower end of the lifting rod is contacted with the ground by sliding the lifting rod in the lifting hole, so that the placing frame can be supported, the supporting rod is rotated to reset and lock the second locking bolt under the condition of sudden weather change, the motor drives the driving gear to drive the two driven gears to rotate, the driven gear rotates to drive the screw rod to drive the movable plate to pull the placing frame back into the box body to reset, and the fan is turned on to blow wind to tea leaves in the airing frame, so that the tea leaves can be ventilated to prevent the tea leaves from being mildewed and deteriorated after being stored for a long time. Loosening first locking bolt and rotating the dead lever through the first in command and drive the backup pad and rotate, thereby the backup pad rotates and can drive the rotation of solar photovoltaic board, can make solar photovoltaic board can be fully shone by sunshine according to the motion trail change of sun like this to this can guarantee that the battery has sufficient electric energy. Therefore, the problem that the dust adhered to tea leaves of the tea leaf drying device for tea leaf processing in the prior art drops when the tea leaf drying device is used, broken slag in the tea leaves of the dust box falling on the tea leaves cannot be screened out to collect the quality of the tea leaves, and power utilization equipment in the drying device is inconvenient to supply power by an external power supply is solved.

Drawings

Fig. 1 is a schematic view of a basic structure of a tea leaf airing device provided by the present invention;

FIG. 2 is a schematic view of the basic structure of the rotating member;

FIG. 3 is a schematic view of the lift pins and lift holes;

FIG. 4 is a schematic view of section A of FIG. 1;

fig. 5 is a schematic view of part B of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in figures 1-5, the utility model relates to a tea leaf airing device, which comprises a horizontally arranged box body 1, wherein four corners at the lower side of the box body 1 are all welded and fixedly connected with universal wheels 13, the center of the bottom in the box body 1 is symmetrically welded and fixedly connected with vertically arranged vertical plates 2, the two vertical plates 2 are rotatably matched and connected with horizontally arranged screw rods 3 between the inner walls of the two vertical plates 2 and the box body 1, one ends of the two screw rods 3 far away from the inner wall of the box body 1 are horizontally penetrated through the corresponding vertical plates 2 and are oppositely arranged, the opposite ends of the two screw rods 3 are fixedly connected with vertically arranged driven gears 31, the upper ends of the two vertical plates 2 are fixedly welded and connected with vertically arranged vertical rods 21, the upper ends of the two vertical rods 21 are commonly welded and fixedly connected with horizontally arranged transverse plates 22, the upper sides of the transverse plates 22 are fixedly connected with a motor 23 through bolts, and the main shaft of the motor 23 vertically penetrates through the transverse plates 22 downwards, the end of the main shaft of the motor 23 is fixedly connected with a driving gear 24 which is horizontally arranged in a welding way, the driving gear 24 is meshed with the two driven gears 31, the other ends of the two screw rods 3 are respectively in running fit with a rotating bearing fixed on the inner wall of the box body 1, the outer side of each screw rod 3 is connected with a vertically arranged moving plate 32 in a threaded rotation fit manner, threaded holes are formed in the two moving plates 32, the two screws 3 penetrate through the corresponding threaded holes and are in threaded fit connection, the bottom in the box body 1 is symmetrically provided with horizontally arranged sliding chutes 10, the two sliding chutes 10 are respectively arranged below the two screws 3, the two sliding chutes 10 are in sliding fit connection with sliding blocks 101, the lower sides of the two moving plates 32 are respectively fixedly connected with the upper sides of the corresponding sliders 101 in a welding manner, and the stability of the moving plates 32 can be improved by arranging the sliding grooves 10 and the sliders 101. Two movable plates 32 are towards placing frame 4 that the equal welded fastening of one side of box 1 inner wall connected the level setting, every sunning frame 5 of all placing the level setting in placing frame 4, every sunning frame 5's the equal vertical upwards stretch out of upper end to rather than the corresponding frame 4 outside of placing, every sunning frame 5's outside top all is equipped with second handle 52, and the bottom all evenly is equipped with round hole 51 in every sunning frame 5, every locating lever 42 of two vertical settings of equal symmetric welding of bottom in placing frame 4, every sunning frame 5's below both sides edge all is equipped with locating hole 53 of vertical setting, locating hole 53 with locating lever 42 one-to-one grafting cooperation is connected, every waste material box 41 that the bottom all was equipped with the level setting in placing frame 4, waste material box 41 sets up between two locating levers 42 and sets up with round hole 51 relatively. Every is placed frame 4 and is close to the equal welded fastening of downside of opening 11 and connects square 43, all is equipped with the rotation hole that the level set up on every square 43, and the dwang 45 that the equal normal running fit connection level set up in every rotation hole, the one end welded fastening who square 43 was kept away from to dwang 45 connects bracing piece 44, bracing piece 44 can rotate through dwang 45, and the one end that dwang 45 was kept away from to bracing piece 44 is equipped with lift hole 441, and sliding fit connects lifter 442 in lift hole 441. A second threaded hole 46 is formed in the lower side of the block 43, the second threaded hole 46 is communicated with the rotating hole, a second locking bolt 47 used for locking the rotating rod 45 is connected with the second threaded hole 46 in a threaded fit mode, a third threaded hole 443 is arranged below one side of the supporting rod 44, the third threaded hole 443 is communicated with the lifting hole 441, and a third locking bolt 444 used for locking the lifting rod 442 is connected with the third threaded hole 443 in a threaded fit mode. The relative outside of box 1 all is equipped with opening 11, and every opening 11 all sets up rather than the frame 4 of placing that corresponds relatively, the top symmetry is equipped with two fans 12 of level setting in the box 1, and fans 12 and sunning frame 5 one-to-one set up.

The upside center department of box 1 is equipped with rotates the piece 6, it includes rotates seat 61 and turning block 62 to rotate piece 6, rotates the upside center department of box 1 and connects in the horizontal welding fixed connection of seat 61, and the upside of rotating seat 61 is equipped with the rotation groove 63 that the level set up, turning block 62 normal running fit connects in rotating groove 63, one side of rotating seat 61 is equipped with first screw hole 64, first screw hole 64 with rotate groove 63 and be linked together, first screw hole 64 internal thread fit connects and is used for the first locking bolt 65 with turning block 62 locking, the upside fixed connection vertical dead lever 7 that sets up of turning block 62, the backup pad 8 of the upper end welding fixed connection level setting of dead lever 7, the upper end of backup pad 8 is equipped with the mounting panel 81 that the slope set up, the upside of mounting panel 81 is equipped with a set of solar photovoltaic board 82, the first in the outside welded connection of dead lever 71, the reinforcing ribs 72 are symmetrically welded and fixed between the fixing rod 7 and the lower side of the support plate 8, and the lower side of the mounting plate 81 is fixedly connected with the upper side of the support plate 8 through the ejector rod 83 in a welding mode. The upper side of the box body 1 is also provided with a storage battery 9, and the storage battery 9 is electrically connected with the solar photovoltaic panel 82, the motor 23 and the fan 12.

When the tea leaf airing device provided by the utility model is used, the whole airing device can be conveniently moved to a designated position through the universal wheel 13, the motor 23 is turned on to drive the driving gear 24 to drive the two driven gears 31 to rotate, the driven gears 31 can drive the screw 3 to drive the movable plate 32 to drive the placing frame 4 to penetrate through the opening 11 and extend out of the placing frame 4, tea leaves to be aired are uniformly placed in the airing frame 5, the airing frame 5 is horizontally placed in the placing frame 4 through the second handle 52, the airing frame 5 can be positioned through the positioning rod 42 and the positioning hole 53 to prevent the airing frame 5 from shaking, dust in the tea leaves and crushed slag falling from the tea leaves fall into the waste box 41 through the round hole 51 to be collected, the supporting rod 44 is vertically downwards arranged by rotating the supporting rod 44 by loosening the second locking bolt 47, the lower end of the lifting rod 442 is contacted with the ground by sliding in the lifting hole 441 through the lifting rod 442, thereby can play the effect of support to placing frame 4, rotate the bracing piece 44 under the condition that meets the weather sudden change and reset locking second locking bolt 47, motor 23 drive driving gear 24 drives two driven gear 31 rotations, and driven gear 31 rotates and to drive screw 3 drive movable plate 32 and will place frame 4 and pull back in the box 1 and reset, thereby open fan 12 and can make the tealeaves ventilation of blowing to sunning frame 5 in can making tealeaves prevent to deposit for a long time and go mildy and bad.

Loosening the first locking bolt 65 and rotating the fixing rod 7 through the first handle 71 to drive the supporting plate 8 to rotate, so that the supporting plate 8 can drive the solar photovoltaic panel 82 to rotate, the movement track of the sun can be changed, the solar photovoltaic panel 82 can be fully irradiated by the sunlight, and the storage battery 9 can be guaranteed to have sufficient electric energy.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tealeaves drying device, includes box (1) of level setting, its characterized in that: the box body (1) is characterized in that the centers of the bottom in the box body (1) are symmetrically and fixedly connected with vertical plates (2) which are vertically arranged, screws (3) which are horizontally arranged are respectively and rotatably matched between the two vertical plates (2) and the inner wall of the box body (1), one ends of the two screws (3) far away from the inner wall of the box body (1) are respectively and horizontally penetrated through the corresponding vertical plates (2) and are oppositely arranged, one ends of the two screws (3) which are opposite are respectively and fixedly connected with driven gears (31) which are vertically arranged, the upper ends of the two vertical plates (2) are respectively and fixedly connected with vertical upright rods (21), the upper ends of the two upright rods (21) are respectively and fixedly connected with a horizontal plate (22) which is horizontally arranged, a motor (23) is arranged on the upper side of the horizontal plate (22), a main shaft of the motor (23) vertically penetrates through the horizontal plate (22) downwards, a driving gear (24) which is horizontally arranged at the tail end of the main shaft of the motor (23) is fixedly connected with the driving gear (24), and is meshed with the two driven gears (31), the other ends of the two screw rods (3) are respectively in running fit with the inner wall of the box body (1), the outer side of each screw rod (3) is connected with a vertically arranged moving plate (32) in a threaded running fit manner, one side of each moving plate (32) facing the inner wall of the box body (1) is fixedly connected with a horizontally arranged placing frame (4), a horizontally arranged airing frame (5) is placed in each placing frame (4), the upper end of each airing frame (5) vertically and upwards extends to the outer side of the placing frame (4) corresponding to the upper end of the airing frame, a round hole (51) is uniformly arranged at the bottom in each airing frame (5), openings (11) are formed in the outer sides of the box body (1) opposite to each other, and each opening (11) is arranged opposite to the placing frame (4) corresponding to the opening;

the upside center department of box (1) is equipped with rotates piece (6), rotates dead lever (7) of the vertical setting of upside fixed connection of piece (6), backup pad (8) that the upper end fixed connection level of dead lever (7) set up, and the upper end of backup pad (8) is equipped with mounting panel (81) that the slope set up, and a set of solar photovoltaic board (82) are equipped with to the upside of mounting panel (81), upside at box (1) still is equipped with battery (9).

2. The tea leaf airing device according to claim 1, wherein: rotate piece (6) including rotating seat (61) and turning block (62), rotate seat (61) level fixed connection and be in the upside center department of box (1), the upside that rotates seat (61) is equipped with rotation groove (63) that the level set up, turning block (62) normal running fit connects in rotation groove (63), the upside of dead lever (7) vertical fixed connection in turning block (62), one side of rotating seat (61) is equipped with first screw hole (64), first screw hole (64) with it is linked together to rotate groove (63), and first screw hole (64) interior screw-thread fit connects and is used for first locking bolt (65) with turning block (62) locking.

3. The tea leaf airing device according to claim 1, wherein: every is placed frame (4) and is close to equal fixed connection square (43) of downside of opening (11), all is equipped with the rotation hole that the level set up on every square (43), and dwang (45) that the level set up is connected to every downthehole equal normal running fit, and one end fixed connection bracing piece (44) of square (43) are kept away from in dwang (45), bracing piece (44) can rotate through dwang (45), and the one end that dwang (45) were kept away from in bracing piece (44) is equipped with lift hole (441), and sliding fit connects lifter (442) in lift hole (441).

4. The tea leaf airing device according to claim 3, wherein: the downside of square (43) is equipped with second screw hole (46), second screw hole (46) with the rotating hole intercommunication, second screw hole (46) female thread fit connect be used for with second locking bolt (47) of dwang (45) locking, one side below of bracing piece (44) is equipped with third screw hole (443), third screw hole (443) with lift hole (441) are linked together, third screw hole (443) female thread fit connect be used for with third locking bolt (444) of lifter (442) locking.

5. The tea leaf airing device according to claim 1, wherein: the bottom symmetry is equipped with spout (10) that the level set up in box (1), and two spout (10) set up respectively the below of two screw rods (3), equal sliding fit link block (101) in two spout (10), the downside of two movable plates (32) respectively rather than the upside fixed connection who corresponds slider (101).

6. The tea leaf airing device according to claim 1, wherein: every is placed frame (4) interior bottom and all is symmetrical to be equipped with locating lever (42) of two vertical settings, the below both sides edge of every sunning frame (5) all is equipped with locating hole (53) of vertical setting, locating hole (53) with locating lever (42) one-to-one grafting cooperation is connected, every is placed frame (4) interior bottom and all is equipped with waste material box (41) that the level set up, and waste material box (41) set up between two locating lever (42) and set up with round hole (51) relatively.

7. The tea leaf airing device according to claim 1, wherein: the top symmetry is equipped with fan (12) of two level settings in box (1), and fan (12) and sunning frame (5) one-to-one set up, and four corners of box (1) downside all are equipped with universal wheel (13).

8. The tea leaf airing device according to claim 1, wherein: the outer side of the fixing rod (7) is provided with a first handle (71), reinforcing ribs (72) are symmetrically arranged between the fixing rod (7) and the lower side of the supporting plate (8), and the lower side of the mounting plate (81) is fixedly connected with the upper side of the supporting plate (8) through a push rod (83).