CN213347624U

CN213347624U - Infant auxiliary sitting and standing trainer

Info

Publication number: CN213347624U
Application number: CN202020875370.0U
Authority: CN
Inventors: 焦胡莹; 李秀; 吴莉; 肖利娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-06-04
Anticipated expiration: 2030-05-22

Abstract

The infant auxiliary sitting station trainer comprises a base, wherein a liftable support frame is installed at the upper end of the base, mounting blocks are fixedly connected to the left side and the right side of the upper end of the support frame, reversible seat plates are installed on the inner sides of the two mounting blocks, reversible first backup plates are hinged to the rear sides of the two mounting blocks, telescopic second backup plates are connected to the surfaces of the first backup plates in a sliding mode, leg fixing plates are fixedly connected to the front sides of the lower ends of the two mounting blocks, and foot fixing plates are fixedly connected to the lower ends of the leg fixing plates; through rotating the lift control knob alright remove with control lift post, and then adjust the height of seat, be applicable to the infant of different heights, the comfort level that is suitable for of infant can improve through the rotation angle who adjusts first back, can lengthen the length of first backup plate through removing the second backup plate, improves application scope to this device can help the infant to stabilize the seat posture, and the position of sitting is tempered to the help infant, and can also assist the supporting capacity that patient tempered low limbs.

Description

Infant auxiliary sitting and standing trainer

Technical Field

The utility model belongs to the technical field of medical equipment and specifically relates to a supplementary training ware of sitting and standing of infant is related to.

Background

The child suffering from GMFCS 4-5 grade severe cerebral palsy or the child suffering from other diseases in a hospital is limited in sitting ability, the child is usually assisted by a sitting posture correcting chair to correct and exercise the sitting ability when the child is treated, but the child cannot be assisted by a common sitting posture correcting chair to carry out correct sitting posture due to poor commanding ability of the child to limbs, the effect expected by doctors and parents cannot be achieved during long-term exercise treatment, and the common sitting posture correcting chair is single in function and cannot assist the child to exercise the lower limb ability.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide the supplementary training ware of sitting of infant, solved ordinary position of sitting effectively and corrected the unable supplementary infant of chair and carry out the exact position of sitting to chair function singleness is corrected to ordinary position of sitting, the unable problem of assisting the infant to temper low limbs ability.

In order to solve the above problems, the utility model adopts the following technical proposal:

supplementary sitting of infant trains ware, including the base, the support frame of liftable is installed to the upper end of base, the equal fixedly connected with installation piece of the left and right sides of support frame upper end, two the seat that can overturn is installed to the inboard of installation piece, two the rear side of installation piece articulates there is the first backup plate that can overturn, the sliding surface of first backup plate is connected with telescopic second backup plate, the detachable table is installed to the upper end surface front side of installation piece, the table front side the equal fixed connection mobile jib in installation piece surface, rotatable horizontal pole, two are all installed to the upper end of mobile jib the equal fixedly connected with shank fixed plate in lower extreme front side of installation piece, the lower extreme fixedly connected with foot fixed plate of shank fixed plate.

Preferably, the upper end fixedly connected with supporting cylinder of support frame, the upper end fixed surface of supporting cylinder is connected with the mounting box, the inside sliding connection of supporting cylinder has the lift post, the fixed surface of lift post is connected with the lifting rack, with the lifting rack is corresponding the rack passageway has been seted up to the supporting cylinder surface, the upper end meshing of lifting rack has the lifting gear, the lifting gear rotates to be connected inside the mounting box, the coaxial lifting worm wheel that is fixed with in front side of lifting gear, the downside meshing of lifting worm wheel has rotatable lift worm, the lift worm rotates to be connected the mounting box inner wall, the front end of lift worm runs through the mounting box and the front end fixedly connected with lift knob of lift worm.

Preferably, the lower end surface of the support frame is rotatably connected with an overturning screw rod, the surface of the overturning screw rod is connected with an overturning slider capable of moving back and forth through threads, the upper end of the overturning slider is hinged with an overturning pull rod, the other end of the overturning pull rod is hinged with the first backup plate, the front end of the overturning screw rod is fixedly connected with a first bevel gear, the left side of the first bevel gear is meshed with a second bevel gear, the center of the second bevel gear is fixedly connected with a transmission rod, the surface of the transmission rod is rotatably connected to the lower end surface of the support frame, and the left end of the transmission rod is fixedly connected with.

Preferably, the surperficial upside of mobile jib all overlaps there is reset spring, the equal fixedly connected with spring baffle of reset spring's the equal fixed connection of lower extreme, the equal fixed connection of spring baffle is in the mobile jib surface, the equal fixedly connected with retaining ring in reset spring's the upper end, the equal sliding connection of retaining ring is in the mobile jib surface, the equal fixedly connected with locking ring of upside of retaining ring, the inboard of locking ring all meshes the stop gear, the equal fixedly connected with go-between in upper end of stop gear, the go-between all rotates to be connected the upper end of mobile jib, the equal fixedly connected with horizontal pole in inboard of mobile jib.

Preferably, a threaded hole is formed in the center of the upper end surface of the first backup plate, reinforcing holes are formed in the left side and the right side of the upper end of the first backup plate, a lengthening screw is connected to the threaded hole in a threaded manner, a lengthening knob is fixedly connected to the upper side of the surface of the lengthening screw, and the upper end of the lengthening screw is rotatably connected with the lower end of the second backup plate; and the reinforcing holes are internally and uniformly connected with stabilizer bars in a sliding manner, and the stabilizer bars are fixedly connected to the bottom surface of the lower end of the second backup plate.

Preferably, the equal fixedly connected with articulated shaft in both ends center department about the seat, the seat passes through the articulated shaft with the installation piece is articulated, the seat left end the fixed surface of articulated shaft is connected with the control worm wheel, the control worm wheel rotates to be connected inside the installation piece, the front side meshing of control worm wheel has the control worm, the lower extreme of control worm rotates to be connected the inside of installation piece, the upper end of control worm runs through the installation piece and the upper end fixedly connected with seat control knob of control worm.

The utility model discloses novel structure, think about ingenious, easy operation is convenient, compares with prior art and has following advantage:

this device easy operation, the function is various, application scope is extensive, through rotate the lift control knob alright remove with control lift post, and then adjust the height of seat, be applicable to the infant of different heights, and the suitable comfort level of infant can be improved through the rotation angle who adjusts first back, can lengthen the length of first backup plate through removing the second backup plate, improve application scope, and this device can help the infant to stabilize the seat posture, the position of sitting is tempered to the help infant, and can also assist the patient and temper the support ability of low limbs.

Drawings

Fig. 1 is a schematic view of a first overall structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 2 is a schematic view of the left side plane structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 3 is a schematic view of a second overall structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 4 is a first schematic view of the first backup plate turnover structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 5 is a schematic view of the lifting structure of the lifting column of the child-assisted sitting and standing trainer of the present invention.

Fig. 6 is a schematic view of the internal structure of the first backup plate of the child-assisted sitting and standing trainer of the present invention.

Fig. 7 is a second schematic view of the first backup plate turnover structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 8 is a third schematic view of the first backup plate turnover structure of the child-assisted sitting and standing trainer of the present invention.

Fig. 9 is a schematic view of the connection structure between the control worm wheel and the control worm of the child sitting and standing assisting training device of the present invention.

Fig. 10 is an exploded view of the connection structure between the stop ring and the stop teeth of the child trainer.

Fig. 11 is a schematic structural view of a table plate of the child-assisted sitting and standing trainer of the present invention.

Reference numbers in the figures: 1-base, 2-support cylinder, 3-support frame, 4-installation block, 5-first backup plate, 6-second backup plate, 7-table plate, 8-lifting column, 9-lifting rack, 10-lifting gear, 11-installation box, 12-lifting worm gear, 13-lifting worm, 14-lifting knob, 15-lengthening screw, 16-lengthening knob, 17-turning pull rod, 18-turning slider, 19-turning screw, 20-transmission rod, 21-turning knob, 22-first bevel gear, 23-second bevel gear, 24-seat plate, 25-control worm gear, 26-control worm, 27-articulated shaft, 28-connection plate, 29-fixing bolt, 30-screw hole block, 30-lifting screw hole block, 32-leg fixing plate, 33-foot fixing plate, 34-thoracoabdominal fixing belt, 35-leg fixing belt, 36-foot fixing belt, 37-guard bar, 38-main bar, 39-spring baffle, 40-return spring, 41-stop ring, 42-stop toothed ring, 43-stop gear, 44-connecting ring, 45-cross bar and 46-seat plate control knob.

Detailed Description

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

As shown in fig. 1-11, the utility model provides an auxiliary sitting and standing training device for children patients, which comprises a base 1, a lifting support frame 3 is arranged at the upper end of the base 1, mounting blocks 4 are fixedly connected with the left side and the right side of the upper end of the support frame 3, a reversible seat plate 24 is arranged at the inner sides of the two mounting blocks 4, a reversible first backup plate 5 is hinged at the rear sides of the two mounting blocks 4, a telescopic second backup plate 6 is connected on the surface of the first backup plate 5 in a sliding way, a detachable table plate 7 is arranged on the front side of the upper end surface of the mounting block 4, table 7 front side installation piece 4 equal fixed connection mobile jib 38 in surface, rotatable horizontal pole 45, two are all installed to the upper end of mobile jib 38 the equal fixedly connected with shank fixed plate 32 in lower extreme front side of installation piece 4, the lower extreme fixedly connected with foot fixed plate 33 of shank fixed plate 32.

As shown in the figure I, the lower end of the base 1 is provided with a plurality of supporting legs which are in a structure distributed circumferentially and used for supporting the device and enhancing the stability of the device, and the lower ends of the supporting legs at the lower end of the base 1 are fixedly connected with foot brake universal wheels used for assisting in moving and fixing the device; the angle of the seat plate 24 can be adjusted by turning over the seat plate 24, the stability and the safety of the infant sitting on the seat plate 24 are improved, the infant is prevented from involuntarily sliding forwards to move out of the seat plate 24 when taking exercise, a patient can lean against the surface of the second backup plate 6 when taking exercise, the comfort degree of the infant when in use can be enhanced by adjusting the turning angle of the first backup plate 5, the second backup plate 6 can move upwards to lengthen the length of the first backup plate 5, the application range is improved, the cross rod 45 is used for grasping the infant to help the infant to stabilize the body shape, the leg fixing plate 32 is used for helping the infant to fix the legs, the infant keeps the proper angle of the two legs separated, the buttocks of the infant can also be prevented from moving forwards, the composition of the ischial nodules at two sides is promoted, the foot fixing plate 33 is used for fixing the two feet of the infant to keep the feet of the infant vertically placed infant, and the upper and lower two sides at the left end of the, the left end of the foot fixing plate 32 is fixedly connected with a foot fixing belt 36, the left end of the first backup plate 5 and the left end of the second backup plate 6 are both fixedly connected with a thoraco-abdominal fixing belt 34, the left ends of the leg fixing belt 35, the foot fixing belt 36 and the thoraco-abdominal fixing belt 34 are all fixedly connected with a hanging buckle, the right end of the foot fixing plate 32, the inner sides of the two leg fixing plates 32, the right end of the first backup plate 5 and the right end of the second backup plate 6 are both fixedly connected with a hook, the hanging buckle is all fixed on the hook to fix the leg fixing belt 35, the foot fixing belt 36 and the thoraco-abdominal fixing belt 34, the leg fixing belt 35, the foot fixing belt 36 and the thoraco-abdominal fixing belt 34 are respectively used for fixing the thoraco-abdominal part, the leg part and the foot part, the infant can be fully fixed by the fixing of the thoraco-abdominal fixing belt 34 and the fixing of, under the support of the first back plate 5 and the second back plate 6 and the fixation of the leg fixing belts 35, the foot fixing belts 36 and the chest and abdomen fixing belts 34, the infant patient is enabled to keep the right sitting posture; equal fixedly connected with screw hole piece 30 of upper end front side of installation piece 4, screw hole piece 30's surface all seted up threaded hole, the equal fixedly connected with connecting plate 28 of the lower extreme left and right sides of table 7, the through-hole has all been seted up to the outside surface downside of two connecting plates 28, all be provided with fixing bolt 29 in the through-hole, fixing bolt 29 all with the screw hole threaded connection on screw hole piece 30 surface, be used for fixed table 7, the upper end surface of table 7 can prevent to be used for taking exercise the instrument of infant, the equal fixedly connected with guard bar 37 in upper end of two installation pieces 4, be used for helping the infant to support upper half body, the infant can hold guard bar 37 or horizontal pole 45 with the hand, promote the truck to extend, improve low limbs support capacity.

The upper end fixedly connected with supporting cylinder 2 of support frame 3, the upper end fixed surface of supporting cylinder 2 is connected with mounting box 11, the inside sliding connection of supporting cylinder 2 has lift post 8, the fixed surface of lift post 8 is connected with lifting rack 9, with lifting rack 9 is corresponding the rack passageway has been seted up on supporting cylinder 2 surface, lifting rack 9's upper end meshing has lifting gear 10, lifting gear 10 rotates to be connected inside mounting box 11, lifting gear 10's front side coaxial be fixed with lift worm wheel 12, lifting gear 12's downside meshing has rotatable lift worm 13, lift worm 13 rotates to be connected mounting box 11 inner wall, the front end of lift worm 13 runs through mounting box 11 and the front end fixedly connected with lift knob 14 of lift worm 13.

Drive lifting gear 10 through rotating lifting knob 14 under the meshing of lifting worm 13 and lifting worm wheel 12 and rotate, lifting gear 10 when rotating alright reciprocate with driving lifting column 8 through the meshing with lifting rack 9, a lift for realizing support frame 3, and then realize the lift of seat 24, improve the application scope of this device, the rack passageway is used for providing the removal passageway for lifting rack 9 when lifting column 8 goes up and down, do not lifting rack 9 and lifting gear 10 provide connection space, the through-hole has been seted up on the front end surface of mounting box 11, the through-hole is passed through to the front end of sound lifting worm 13 and lifting knob 14 fixed connection.

The lower end surface of the support frame 3 is rotatably connected with an overturning screw rod 19, the surface of the overturning screw rod 19 is connected with an overturning slider 18 capable of moving back and forth through threads, the upper end of the overturning slider 18 is hinged with an overturning pull rod 17, the other end of the overturning pull rod 17 is hinged with the first backup plate 5, the front end of the overturning screw rod 19 is fixedly connected with a first bevel gear 22, the left side of the first bevel gear 22 is meshed with a second bevel gear 23, the center of the second bevel gear 23 is fixedly connected with a transmission rod 20, the surface of the transmission rod 20 is rotatably connected to the lower end surface of the support frame 3, and the left end of the transmission rod 20 is fixedly connected with an.

The spout has been seted up to the lower extreme of support frame 3, upset slider 18 and spout sliding connection, the spout can make upset slider 18 keep the back-and-forth movement, upset screw rod 19 rotates to be connected at the spout inner wall, can drive second bevel gear 23 through the transmission of transfer line 20 through rotating upset knob 21 and rotate, second bevel gear 23 can drive upset screw rod 19 through the meshing with first bevel gear 22 when rotating, because upset screw rod 19 passes through threaded connection with upset slider 18, upset screw rod 19 rotates with support frame 3 lower extreme surface again and is connected, alright make upset slider 18 back-and-forth movement under threaded connection's effect when upset screw rod 19 rotates, alright make first backup plate 5 use and overturn as the center with the pin joint of mounting box 11 under the drive of upset pull rod 17 during the back-and-forth movement of upset slider 18.

The equal cover in surperficial upside of mobile jib 38 has reset spring 40, the equal fixedly connected with spring baffle 39 of lower extreme of reset spring 40, the equal fixed connection of spring baffle 39 is in mobile jib 38 surface, the equal fixedly connected with check ring 41 in reset spring 40's the upper end, the equal sliding connection of check ring 41 is in mobile jib 38 surface, the equal fixedly connected with locking ring 42 of upside of check ring 41, the inboard of locking ring 42 all meshes has stop gear 43, the equal fixedly connected with go-between 44 in upper end of stop gear 43, go-between 44 all rotates to be connected the upper end of mobile jib 38, the equal fixedly connected with horizontal pole 45 in inboard of mobile jib 38.

The inner side of the stop gear ring 42 is provided with teeth meshed with the stop gear 43, the connecting ring 44 can be fixed through the meshing of the stop gear ring 42 and the stop gear 43, the cross rod 45 is further fixed, the stop ring 41 moves downwards to compress the return spring 40, the stop gear ring 42 is disengaged from the stop gear 43, and the cross rod 45 can rotate by taking the main rod 38 as an axis.

A threaded hole is formed in the center of the upper end surface of the first backup plate 5, reinforcing holes are formed in the left side and the right side of the upper end of the first backup plate 5, a lengthening screw 15 is connected to the threaded hole in an internal thread mode, a lengthening knob 16 is fixedly connected to the upper side of the surface of the lengthening screw 15, and the upper end of the lengthening screw 15 is rotatably connected with the lower end of the second backup plate 6; strengthen downthehole equal sliding connection has the stabilizer bar, the equal fixed connection of stabilizer bar is in the lower extreme bottom surface of second backup plate 6.

The stability of second backup plate 6 can be strengthened with the cooperation of strengthening the hole to the stabilizer bar to make second backup plate 6 can only reciprocate, can drive extension screw 15 through rotating extension knob 16 and rotate, when extension screw 15 rotates through with the screw hole of first backup plate 5 be connected down alright reciprocate in order to make the backup plate of second.

The equal fixedly connected with articulated shaft 27 in both ends center department about the seat 24, the seat 24 pass through articulated shaft 27 with the installation piece 4 is articulated, the seat 24 left end the fixed surface of articulated shaft 27 is connected with control worm wheel 25, control worm wheel 25 rotates to be connected inside the installation piece 4, the front side meshing of control worm wheel 25 has control worm 26, the lower extreme of control worm 26 rotates to be connected inside the installation piece 4, the upper end of control worm 26 runs through the installation piece 4 and the upper end fixedly connected with seat control knob 46 of control worm 26.

The installation space of installation control worm wheel 25 and control worm 26 has been seted up in installation piece 4, and the articulated shaft 27 of seat 24 left end rotates the inner wall of connecting at the installation space, can drive control worm 26 through rotating seat control knob 46 and rotate, when control worm 26 rotates through with the meshing of control worm wheel 25 alright drive seat 24 and rotate to through the effect that still has the auto-lock of control worm 26 with control worm wheel 25, be used for guaranteeing seat 24's stability.

The utility model can enable the infant to sit on the seat plate 24 when in use, the state of the seat plate 24 can be adjusted by rotating the seat plate control knob 46, the seat plate 24 can be adjusted to incline towards the front side in a turning way, the infant leans against the surface of the second backup plate 6, the chest and abdomen fixing belt 34 can fix the upper part of the infant, the legs of the infant can be placed in the leg placing plate, the feet are arranged in the foot fixing plate 32 and are fixed by the leg fixing belt 35 and the foot fixing belt 36, the sitting posture of the infant is kept, the height of the seat plate 24 can be adjusted by rotating the lifting knob 14, the turning angle of the first backup plate 5 can be adjusted by rotating the turning knob 21, the comfort level of the infant in use is enhanced, the lengthening knob 16 can be rotated to move the second backup plate 6, the whole length of the first backup plate 5 and the second backup plate 6 is lengthened, the table plate 7 can be collected and unloaded, the use is convenient, the table plate 7 can be detached when the infant stands for exercising, the chest and abdomen fixing belts 34 and the leg fixing belts 35 are loosened, the two hands are used for supporting the protective rods 37 or the cross rods 45, and the supporting capability of the lower limbs is exercised.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or scope of the invention as defined in the appended claims.

Claims

1. Infant assists sitting and stands training ware, including base (1), its characterized in that: a liftable supporting frame (3) is installed at the upper end of the base (1), mounting blocks (4) are fixedly connected to the left side and the right side of the upper end of the supporting frame (3), a reversible seat plate (24) is installed on the inner sides of the two mounting blocks (4), a reversible first backup plate (5) is hinged to the rear sides of the two mounting blocks (4), the surface of the first backup plate (5) is connected with a telescopic second backup plate (6) in a sliding way, a detachable table plate (7) is arranged on the front side of the upper end surface of the mounting block (4), the surfaces of the mounting blocks (4) at the front side of the table plate (7) are fixedly connected with a main rod (38), the upper ends of the main rods (38) are respectively provided with a rotatable cross rod (45), the front sides of the lower ends of the two mounting blocks (4) are respectively fixedly connected with a leg fixing plate (32), the lower end of the leg fixing plate (32) is fixedly connected with a foot fixing plate (33).

2. The child assisted sitting trainer of claim 1, wherein: the upper end fixedly connected with supporting cylinder (2) of support frame (3), the upper end fixed surface of supporting cylinder (2) is connected with mounting box (11), the inside sliding connection of supporting cylinder (2) has lift post (8), the fixed surface of lift post (8) is connected with lifting rack (9), with lifting rack (9) are corresponding the rack passageway has been seted up on supporting cylinder (2) surface, lifting rack's (9) upper end meshing has lifting gear (10), lifting gear (10) rotate to be connected inside mounting box (11), the coaxial lifting worm wheel (12) that is fixed with in front side of lifting gear (10), lifting worm wheel's (12) downside meshing has rotatable lift worm (13), lift worm (13) rotate to be connected mounting box (11) inner wall, the front end of lift worm (13) runs through mounting box (11) and the fixed front end of lift worm (13) is fixed firmly A lifting knob (14) is fixedly connected.

3. The child assisted sitting trainer of claim 1, wherein: the lower extreme surface of support frame (3) rotates and is connected with upset screw rod (19), there is upset slider (18) of back-and-forth movement on the surface of upset screw rod (19) through threaded connection, the upper end of upset slider (18) articulates there is upset pull rod (17), the other end of upset pull rod (17) with first backup plate (5) are articulated, the front end fixed connection first bevel gear (22) of upset screw rod (19), the left side meshing of first bevel gear (22) has second bevel gear (23), the center fixed connection of second bevel gear (23) has transfer line (20), the surperficial rotation of transfer line (20) is connected support frame (3) lower extreme surface, the left end fixed connection of transfer line (20) has upset knob (21).

4. The child assisted sitting trainer of claim 1, wherein: the surperficial upside of mobile jib (38) all overlaps there is reset spring (40), the equal fixedly connected with spring baffle (39) of lower extreme of reset spring (40), the equal fixed connection in spring baffle (39) mobile jib (38) surface, the equal fixedly connected with retaining ring (41) in upper end of reset spring (40), the equal sliding connection of retaining ring (41) is in mobile jib (38) surface, the equal fixedly connected with retaining ring (42) of upside of retaining ring (41), the inboard of retaining ring (42) all meshes retaining gear (43), the equal fixedly connected with go-between (44) in upper end of retaining gear (43), go-between (44) all rotate to be connected the upper end of mobile jib (38), the equal fixedly connected with horizontal pole (45) in inboard of mobile jib (38).

5. The child assisted sitting trainer of claim 1, wherein: a threaded hole is formed in the center of the upper end surface of the first backup plate (5), reinforcing holes are formed in the left side and the right side of the upper end of the first backup plate (5), a lengthening screw (15) is connected to the threaded hole in an internal thread mode, a lengthening knob (16) is fixedly connected to the upper side of the surface of the lengthening screw (15), and the upper end of the lengthening screw (15) is rotatably connected with the lower end of the second backup plate (6); and the reinforcing holes are internally and uniformly connected with stabilizer bars in a sliding manner, and the stabilizer bars are fixedly connected to the bottom surface of the lower end of the second backup plate (6).

6. The child assisted sitting trainer of claim 1, wherein: equal fixedly connected with articulated shaft (27) in both ends center department about seat (24), seat (24) pass through articulated shaft (27) with installation piece (4) are articulated, the seat (24) left end the fixed surface of articulated shaft (27) is connected with control worm wheel (25), control worm wheel (25) rotate to be connected inside installation piece (4), the front side meshing of control worm wheel (25) has control worm (26), the lower extreme of control worm (26) rotates to be connected the inside of installation piece (4), the upper end of control worm (26) is run through installation piece (4) and the upper end fixedly connected with seat control knob (46) of control worm (26).