CN113998488A

CN113998488A - Tire loader

Info

Publication number: CN113998488A
Application number: CN202111312817.9A
Authority: CN
Inventors: 牛爱英
Original assignee: Individual
Current assignee: Servo Wheel Intelligent Robot Nanjing Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-02-01
Anticipated expiration: 2041-11-08
Also published as: CN113998488B

Abstract

The invention belongs to the technical field of tire loading and transportation, in particular to a tire loader, which comprises a box body, wherein the upper end of the bottom in the box body is provided with a base, a gear installation shaft is arranged in one side of the base in a sliding manner, a gear is arranged on the outer circumference of the gear installation shaft, a roller shaft is arranged on one side of the bottom of the base in a sliding manner, a roller is arranged outside the roller shaft, a sliding installation box is arranged on the same side of the base as the gear installation shaft in a sliding manner, a tooth groove is arranged on the lower part of one side of the sliding installation box facing the gear, a plurality of gear strips are fixedly arranged in the tooth groove along the height direction of the tooth groove, the gear strips are meshed and connected with the gear, the other side of the sliding installation box is provided with a track groove along the height direction of the sliding installation box, a connecting slide block is arranged in the track groove, a horizontal rotating shaft is arranged in the upper part of the sliding installation box in a sliding manner, a horizontal rotating plate is arranged on the side surface of the horizontal rotating shaft, a horizontal rotating plate is arranged in the horizontal rotating plate in a sliding manner, a horizontal rotating shaft is fixedly arranged outside the horizontal rotating plate, the horizontal moving groove is arranged on the lower end surface of the transverse plate. The invention can carry out all-dimensional loading in the container on the compressed tire.

Description

Tire loader

Technical Field

The invention belongs to the technical field of tire loading and transportation, and particularly relates to a tire loader.

Background

The rubber tire is one of important parts of the automobile, is directly contacted with the road surface, and is used for relieving the impact on the automobile during running together with an automobile suspension to ensure that the automobile has good riding comfort and running smoothness; the good adhesion between the wheels and the road surface is ensured; the traction, braking and passing performance of the automobile are improved; bearing the weight of the vehicle.

When finished tires are shipped and delivered in an existing automobile tire assembly manufacturing plant, the tires are basically transported to a transport carriage in a manual or forklift transportation mode, and the tires are placed in order by stacking and then are packed and fixed; in the tire carrying process, manual auxiliary carrying, stacking and packaging or forklift carrying is required; whole tire transport operation efficiency is not high, and intensity of labour is big, and the cost of labor is higher, and fork truck transport safety risk is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a tire loader which can carry out all-around loading in a container on compressed tires.

In order to achieve the purpose, the invention adopts the following technical scheme: a tire loader comprises a box body, wherein a base is arranged at the upper end of the bottom in the box body, a gear installation shaft is slidably arranged in one side of the base, a gear is arranged on the outer circumference of the gear installation shaft, a roller shaft is slidably arranged on one side of the bottom of the base, a roller is arranged outside the roller shaft, a sliding installation box is slidably arranged on the same side of the base as the gear installation shaft, a tooth groove is formed in the lower portion of one side of the sliding installation box facing the gear, a plurality of gear strips are fixedly arranged in the tooth groove along the height direction of the tooth groove, the gear strips are connected with the gear in a meshed manner, a track groove is formed in the other side of the sliding installation box along the height direction of the sliding installation box, a connecting slide block is slidably arranged in the track groove, a horizontal rotating shaft is slidably arranged in the upper portion of the sliding installation box, a horizontal rotating plate is arranged on the side of the horizontal rotating shaft, a transverse plate rotating shaft is slidably arranged in the horizontal rotating plate, and a transverse plate is fixedly arranged outside the transverse plate rotating shaft, and a horizontal moving groove is formed in the lower end surface of the transverse plate.

Preferably, one side is equipped with the rotation groove in the link block, it is equipped with the axis of rotation to rotate the inslot, the both ends of axis of rotation are equipped with the rotation wheel, link block's upper end is equipped with bullet piece mounting groove, the slip casing has set firmly alone in the bullet piece mounting groove, it is equipped with the slide bar to slide in the slip casing, the output of slide bar has set firmly bullet piece, bullet piece passes through buffer spring and links to each other bottom the bullet piece mounting groove, link block's one side is equipped with the tire and places the piece, the piece is placed through hook plate and link block sliding connection to the tire.

Preferably, the piece length is placed along the tire outward respectively to the tire and the piece is placed to one side to the tire bottom of placing and one side is slided and is equipped with a plurality of removal axles, the removal off-axial is equipped with the removal wheel, the flexible casing of push wheel has set firmly in the bottom middle part in the piece upper end recess is placed to the tire, it is equipped with the push wheel pole to slide in the flexible casing of push wheel, the output of push wheel pole has set firmly the tire standing groove, the piece bottom both sides have set firmly the concave surface groove in the tire placement, concave surface groove upper end is equipped with the cushion.

Preferably, tire standing groove upper end is equipped with a plurality of roller shafts along tire standing groove upper end arc slip, the roller shaft is equipped with the roller outward, tire standing groove upper end one side is equipped with the connection sliding tray, it is equipped with the connection sliding block to slide in the connection sliding tray, it is equipped with the rotation connecting axle to connect sliding block upper end one side slip, it is equipped with the rotation connecting roller to rotate the connecting axle outward, connection sliding block upper end one side has set firmly the push pedal seat, push pedal seat one side middle part is equipped with connects the spacing groove, one side has set firmly and connects spacing axle in the tire is placed a piece upper end recess, connect spacing axle and connect spacing inslot sliding connection.

Preferably, a horizontal base is fixedly arranged on the other side of the push plate seat, a horizontal moving shell is fixedly arranged on the horizontal base, a horizontal moving rod is arranged in the horizontal moving shell in a sliding mode, a pushing platform is fixedly arranged at the output end of the horizontal moving rod and is connected with the horizontal base through a pushing spring, a plurality of moving belt shafts are symmetrically arranged in the pushing platform in a sliding mode along the height direction of the pushing platform, moving belt rollers are arranged outside the moving belt shafts and are connected through a moving belt, a clamping plate is elastically arranged on the other side of the groove in the upper end of the tire placing block and is connected with the side wall of the tire placing block through a clamping spring, a magnetic suction block is fixedly arranged in the middle of one side, close to the sliding installation box, of the tire placing block, a hook frame installation plate is fixedly arranged on the upper portion, close to the sliding installation box, of the tire placing block, and the middle part in the hook frame mounting plate is provided with a hook frame.

Preferably, the horizontal migration inslot slides and is equipped with the horizontal migration slider, one side has set firmly the magnetism suction disc in the one end recess of horizontal migration slider, the opposite side slides in the recess of horizontal migration slider and is equipped with the gib strip pivot, the gib strip pivot has set firmly the gib strip outward, the outer upper end of diaphragm is close to tip one side and has set firmly the second connecting plate, it is equipped with the second coil axle to slide in the second connecting plate, and the sliding installation case up end both sides of telling have set firmly the bracing piece, the connecting plate has set firmly on the bracing piece, it is equipped with the coil axle to slide in the connecting plate, be connected with the connecting wire between coil axle and the second coil axle.

Has the advantages that:

1. can adapt to through the different conditions of structure in to the container, carry out self-adjustment to different height and length, make the tire can accurately prevent in the incasement.

2. Can carry a plurality of tires simultaneously to arrange in advance and pack into cases after the tire is arranged, roll into through the tire and place the bench and arrange neatly through thrust unit.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a sectional view taken along a-a in fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 3.

Fig. 5 is a sectional view taken along line C-C in fig. 3.

Fig. 6 is a sectional view taken along the direction J-J in fig. 5.

Fig. 7 is an enlarged view of the structure at D in fig. 3.

Fig. 8 is an enlarged view of the structure at E in fig. 3.

Fig. 9 is an enlarged view of the structure at F in fig. 6.

Fig. 10 is an enlarged view of the structure at G in fig. 6.

Fig. 11 is an enlarged view of the structure at I in fig. 4.

Fig. 12 is an enlarged view of the structure at H in fig. 3.

In the figure, a case 10, a base 11, a gear mounting shaft 12, a gear 13, a roller shaft 14, a roller 15, a slide mounting case 16, a tooth groove 17, a gear bar 18, a track groove 19, a connecting slider 20, a rotation groove 21, a rotation shaft 22, a rotation wheel 23, a hook plate 24, an elastic block mounting groove 25, a slide housing 26, a slide rod 27, an elastic block 28, a buffer spring 29, a tire placing block 30, a movement shaft 31, a movement wheel 32, a concave groove 33, a push wheel telescopic housing 34, a push wheel rod 35, a tire placing groove 36, a roller shaft 37, a roller 38, a connecting slide groove 39, a connecting slider 40, a rotation connecting shaft 41, a rotation connecting roller 42, a push plate base 43, a connection limit groove 44, a connection limit shaft 45, a horizontal base 46, a horizontal movement housing 47, a push spring 48, a horizontal movement rod 49, a push platform 50, a movement belt shaft 51, a movement belt roller 52, a movement belt 53, a clamp spring 54, a slide mounting case 16, a tire mounting block 30, a tire mounting block 31, a tire mounting groove 31, a wheel 32, a wheel mounting groove 33, a wheel mounting groove mounting, The magnetic hook comprises a clamping plate 55, a magnetic suction block 56, a hook frame mounting plate 57, a hook frame 58, an elastic pad 59, a horizontal rotating shaft 60, a horizontal rotating plate 61, a horizontal plate rotating shaft 62, a horizontal plate 63, a horizontal moving groove 64, a horizontal moving slider 65, a magnetic suction plate 66, a hook strip rotating shaft 67, a hook strip 68, a supporting rod 69, a connecting plate 70, a coil shaft 71, a second connecting plate 72, a second coil shaft 73, a connecting wire 74 and a conveyor belt 75.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 12, a tire loader comprises a box body 10, a base 11 is arranged at the upper end of the bottom in the box body 10, a gear installation shaft 12 is slidably arranged on one side of the base 11, a gear 13 is arranged on the outer circumference of the gear installation shaft 12, a roller shaft 14 is slidably arranged on one side of the bottom of the base 11, a roller 15 is arranged outside the roller shaft 14, a sliding installation box 16 is slidably arranged on the same side of the base 11 and the gear installation shaft 12, a tooth space 17 is arranged on the lower portion of one side of the sliding installation box 16 facing the gear 13, a plurality of gear strips 18 are fixedly arranged in the tooth space 17 along the height direction of the tooth space 17, the gear strips 18 are engaged with the gear 13, a track groove 19 is arranged on the other side of the sliding installation box 16 along the height direction of the sliding installation box 16, a connecting slide block 20 is slidably arranged in the track groove 19, and a horizontal rotating shaft 60 is slidably arranged on the upper portion of the sliding installation box 16, the side of the horizontal rotating shaft 60 is provided with a horizontal rotating plate 61, a transverse plate rotating shaft 62 is arranged in the horizontal rotating plate 61 in a sliding mode, a transverse plate 63 is fixedly arranged outside the transverse plate rotating shaft 62, and a horizontal moving groove 64 is formed in the lower end face of the transverse plate 63.

Further, one side is equipped with rotation groove 21 in link block 20, it is equipped with axis of rotation 22 to slide in rotation groove 21, the both ends of axis of rotation 22 are equipped with and rotate wheel 23, link block 20's upper end is equipped with bullet piece mounting groove 25, slide housing 26 has set firmly alone in bullet piece mounting groove 25, it is equipped with slide bar 27 to slide in slide housing 26, slide bar 27's output has set firmly bullet piece 28, bullet piece 28 links to each other bottom bullet piece mounting groove 25 through buffer spring 29, one side of link block 20 is equipped with the tire and places piece 30, the tire is placed piece 30 and is passed through hook plate 24 and link block 20 sliding connection.

Further, the piece 30 bottom is placed to the tire and the piece 30 length is placed along the tire respectively outside one side and the piece 30 is placed to the tire and the direction of height slides and is equipped with a plurality of removal axles 31, removal axle 31 is equipped with removal wheel 32 outward, the bottom middle part has set firmly push away the flexible casing 34 of wheel in the piece 30 upper end recess is placed to the tire, it is equipped with push away wheel pole 35 to slide in the flexible casing 34 of push away wheel, the output of push away wheel pole 35 has set firmly tire standing groove 36, the bottom both sides have set firmly concave groove 33 in the piece 30 is placed to the tire, concave groove 33 upper end is equipped with cushion 59.

Further, the upper end of the tire placing groove 36 is provided with a plurality of roller shafts 37 along the arc-shaped sliding of the upper end of the tire placing groove 36, rollers 38 are arranged outside the roller shafts 37, one side of the upper end of the tire placing groove 36 is provided with a connecting sliding groove 39, a connecting sliding block 40 is arranged in the connecting sliding groove 39 in a sliding manner, one side of the upper end of the connecting sliding block 40 is provided with a rotating connecting shaft 41 in a sliding manner, a rotating connecting roller 42 is arranged outside the rotating connecting shaft 41, one side of the upper end of the connecting sliding block 40 is fixedly provided with a push plate seat 43, the middle part of one side of the push plate seat 43 is provided with a connecting limiting groove 44, one side of the upper end of the tire placing block 30 is fixedly provided with a connecting limiting shaft 45, and the connecting limiting shaft 45 is connected in the connecting limiting groove 44 in a sliding manner.

Further, a horizontal base 46 is fixedly arranged on the other side of the pushing plate seat 43, a horizontal moving shell 47 is fixedly arranged on the horizontal base 46, a horizontal moving rod 49 is slidably arranged in the horizontal moving shell 47, a pushing platform 50 is fixedly arranged at the output end of the horizontal moving rod 49, the pushing platform 50 is connected with the horizontal base 46 through a pushing spring 48, a plurality of moving belt shafts 51 are symmetrically and slidably arranged in the pushing platform 50 along the height direction of the pushing platform 50, a moving belt roller 52 is arranged outside the moving belt shafts 51, the moving belt rollers 52 are connected through a moving belt 53, a clamping plate 55 is elastically arranged on the other side in a groove at the upper end of the tire placing block 30, the clamping plate 55 is connected with the side wall of the tire placing block 30 through a clamping spring 54, a magnetic suction block 56 is fixedly arranged at the middle part of one side of the tire placing block 30 close to the sliding installation box 16, a hook frame installation plate 57 is fixedly arranged at the upper part of one side of the tire placing block 30 close to the sliding installation box 16, the hook frame mounting plate 57 is provided with a hook frame 58 at the middle part inside.

Further, it is equipped with horizontal migration slider 65 to slide in the horizontal migration groove 64, one side has set firmly magnetic suction plate 66 in the one end recess of horizontal migration slider 65, the opposite side slides in the recess of horizontal migration slider 65 and is equipped with gib strip pivot 67, gib strip pivot 67 has set firmly gib strip 68 outward, the outer upper end of diaphragm 63 is close to tip one side and has set firmly second connecting plate 72, it is equipped with second coil shaft 73 to slide in the second connecting plate 72, and the bracing piece 69 has set firmly on the up end both sides of the slidable mounting case 16 of telling, connecting plate 70 has set firmly on the bracing piece 69, it is equipped with coil shaft 71 to slide in connecting plate 70, be connected with connecting wire 74 between coil shaft 71 and the second coil shaft 73.

Principle of operation

When the sliding installation box is used, the connecting wire 74 pulls the second connecting plate 72 to drive the transverse plate 63 to rotate so that the transverse plate 63 is in a horizontal state, and meanwhile, the gear 13 is rotated so that the sliding installation box 16 rises to be matched with the height of the box bottom.

When the tire is transferred to the tire placing block 30 through the transfer belt 75, the tire placing block 30 is horizontally placed in an initial state, the hook plate 24 is claw-hooked with the rotating shaft 22, the tire rolls down into the concave groove 33, the horizontal moving rod 49 is extended to push the tire to the other side of the tire placing block 30, then the tire returns to an initial position, the tire can horizontally move in the tire placing block 30 in the concave groove 33 through the roller 38, and when the number of tires in the concave groove 33 reaches a certain value, the horizontal moving rod 49 is forwardly extended to be matched with the clamping plate 55 to clamp the tire.

After the tire is placed and is accomplished, the one end of placing piece 30 with the tire through link block 20 is mentioned and is made the tire place piece 30 move up, through link block 20 vertical slip in track groove 19, drive the tire and place piece 30 and link block 20 junction lifting, make the tire place piece 30 slope, when link block 20 rises to a take the altitude, the tire is placed one side that is equipped with a plurality of removal axles 31 on piece 30 and is contacted with track groove 19 both sides surface completely, the tire is placed piece 30 and is vertical state this moment.

The connecting slide block 20 continuously rises until the elastic block 28 contacts and extrudes with the bottom of the transverse plate 63 to start the motor, the magnetic suction plate 66 is connected with energy to generate strong magnetic to suck the magnetic suction block 56, the hook strip 68 hooks the hook frame 58, the hook strip 68 initially drops along with gravity, and when the tire placing block 30 rises to enable the hook frame 58 to contact with the hook strip 68 to enable the hook strip 68 to connect the hook frame 58 to prevent the tire placing block 30 from falling.

When the magnetic attraction block 56 is connected with the magnetic attraction plate 66, the hook plate 24 is disconnected from the rotating shaft 22 due to height difference, at the moment, the tire placing block 30 can horizontally move under the transverse plate 63, the horizontal moving slide block 65 horizontally moves in the horizontal moving groove 64, the tire placing block 30 enters the container, the bottom moving wheel 32 of the tire placing block 30 at the moment is in contact with the bottom of the container to slide to a certain distance away from the inner wall of the container, the tire placing groove 36 is outwards pushed out by the extension of the wheel pushing rod 35 when the tire placing block slides to a certain distance away from the inner wall of the container, the tire placing groove 36 can form a certain inclination angle with the bottom when the tire placing groove is extended through the matching of the connection limiting shaft 45 at the bottom and the connection limiting groove 44 and the rotation of the rotation connecting roller 42, and meanwhile, the movable belt roller 52 rotates to move the tire to the bottom of the container, and the tires are horizontally stacked at the moment.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a tire car loader, includes box (10), its characterized in that, bottom upper end is equipped with base (11) in box (10), it is equipped with gear installation axle (12) to slide in base (11) one side, gear installation axle (12) outer circumference is equipped with gear (13), base (11) bottom one side slides and is equipped with roller shaft (14), roller shaft (14) are equipped with gyro wheel (15) outward, base (11) and gear installation axle (12) the same side slide and are equipped with slip install case (16), one side lower part that slip install case (16) faced gear (13) is equipped with tooth's socket (17), along tooth's socket (17) direction of height set firmly a plurality of gear strips (18) in tooth's socket (17), gear strip (18) are connected with gear (13) meshing, the opposite side of slip install case (16) is equipped with track groove (19) along slip install case (16) direction of height, slide in track groove (19) and be equipped with link block (20), slide in installation case (16) upper portion and be equipped with horizontal axis of rotation (60), the side of horizontal axis of rotation (60) is equipped with horizontal rotation board (61), it is equipped with diaphragm axis of rotation (62) to slide in horizontal rotation board (61), diaphragm axis of rotation (62) have set firmly diaphragm (63) outward, the terminal surface is equipped with horizontal migration groove (64) under diaphragm (63).

2. Tyre loader according to claim 1, characterized in that the coupling slide (20) is provided with a turning groove (21) on one side inside, a rotating shaft (22) is arranged in the rotating groove (21) in a sliding manner, rotating wheels (23) are arranged at two ends of the rotating shaft (22), the upper end of the connecting slide block (20) is provided with an elastic block mounting groove (25), a sliding shell (26) is separately and fixedly arranged in the elastic block mounting groove (25), a sliding rod (27) is arranged in the sliding shell (26) in a sliding way, an elastic block (28) is fixedly arranged at the output end of the sliding rod (27), the elastic block (28) is connected with the bottom of the elastic block mounting groove (25) through a buffer spring (29), one side of the connecting sliding block (20) is provided with a tire placing block (30), and the tire placing block (30) is connected with the connecting sliding block (20) in a sliding mode through the hook plate (24).

3. The tire loader of claim 2, wherein a plurality of moving shafts (31) are arranged at the bottom and one side of the tire placing block (30) in a sliding manner along the length direction and the height direction of the tire placing block (30), a moving wheel (32) is arranged outside the moving shaft (31), a push wheel telescopic shell (34) is fixedly arranged at the middle part of the bottom in a groove at the upper end of the tire placing block (30), a push wheel rod (35) is arranged in the push wheel telescopic shell (34) in a sliding manner, a tire placing groove (36) is fixedly arranged at the output end of the push wheel rod (35), concave grooves (33) are fixedly arranged at two sides of the bottom in the tire placing block (30), and an elastic pad (59) is arranged at the upper end of each concave groove (33).

4. A tyre loader as claimed in claim 3, wherein the upper end of the tyre placement groove (36) is provided with a plurality of roller shafts (37) sliding along an arc of the upper end of the tyre placement groove (36), a roller (38) is arranged outside the roller shaft (37), a connecting sliding groove (39) is arranged on one side of the upper end of the tire placing groove (36), a connecting sliding block (40) is arranged in the connecting sliding groove (39) in a sliding manner, a rotating connecting shaft (41) is arranged on one side of the upper end of the connecting sliding block (40) in a sliding manner, a rotating connecting roller (42) is arranged outside the rotating connecting shaft (41), a push plate seat (43) is fixedly arranged on one side of the upper end of the connecting sliding block (40), a connection limiting groove (44) is arranged in the middle of one side of the push plate seat (43), a connection limiting shaft (45) is fixedly arranged on one side in the groove at the upper end of the tire placing block (30), the connection limiting shaft (45) is connected in a sliding manner in the connection limiting groove (44).

5. The tire loader according to claim 3, wherein a horizontal base (46) is fixedly arranged on the other side of the push plate seat (43), a horizontal moving shell (47) is fixedly arranged on the horizontal base (46), a horizontal moving rod (49) is slidably arranged in the horizontal moving shell (47), a pushing platform (50) is fixedly arranged at the output end of the horizontal moving rod (49), the pushing platform (50) is connected with the horizontal base (46) through a pushing spring (48), a plurality of moving belt shafts (51) are symmetrically slidably arranged in the pushing platform (50) along the height direction of the pushing platform (50), a moving belt roller (52) is arranged outside the moving belt shaft (51), the moving belt rollers (52) are connected through a moving belt (53), and a clamping plate (55) is elastically arranged on the other side in a groove at the upper end of the tire placing block (30), the clamping plate (55) is connected with the side wall of the tire placing block (30) through a clamping spring (54), the middle of one side, close to the sliding installation box (16), of the tire placing block (30) is fixedly provided with a magnetic suction block (56), the upper portion of one side, close to the sliding installation box (16), of the tire placing block (30) is fixedly provided with a hook frame installation plate (57), and the middle of the interior of the hook frame installation plate (57) is provided with a hook frame (58).

6. The tyre loader as claimed in claim 1, wherein a horizontal moving slide (65) is slidably disposed in the horizontal moving groove (64), a magnetic attraction plate (66) is fixedly arranged on one side in a groove at one end of the horizontal moving slide block (65), a hook strip rotating shaft (67) is arranged on the other side in the groove of the horizontal moving slide block (65) in a sliding way, a hook strip (68) is fixedly arranged outside the hook strip rotating shaft (67), a second connecting plate (72) is fixedly arranged on one side of the outer upper end of the transverse plate (63) close to the end part, a second coil shaft (73) is arranged in the second connecting plate (72) in a sliding way, supporting rods (69) are fixedly arranged on two sides of the upper end surface of the sliding installation box (16), a connecting plate (70) is fixedly arranged on the supporting rod (69), a coil shaft (71) is arranged in the connecting plate (70) in a sliding way, a connecting wire (74) is connected between the coil axis (71) and the second coil axis (73).