CN113101072A

CN113101072A - Wheelchair for medical care with deck chair function

Info

Publication number: CN113101072A
Application number: CN202110372960.0A
Authority: CN
Inventors: 刘新艳; 王珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-07-13
Anticipated expiration: 2041-04-07
Also published as: CN113101072B

Abstract

The invention relates to a medical care wheelchair with a deck chair function, which comprises a wheelchair seat, wherein a wheelchair wheel support is fixed on one side of the bottom of the wheelchair seat, wheelchair wheels are arranged on two sides of the wheelchair wheel support and are rotatably connected with the wheelchair wheel support through rotating shafts, an auxiliary wheel support is fixed on the bottom of the other side of the wheelchair seat, auxiliary wheels are rotatably connected to the bottom of the auxiliary wheel support, and a push bracket is rotatably connected to the end, close to the auxiliary wheel support, of the wheelchair seat. This wheelchair for medical care with deck chair function, when the hydraulic stem extension, the hydraulic stem drives and pushes away bracket anticlockwise rotation and expandes, pushes away the bracket pulling steel cable simultaneously, makes the steel cable drive the wire winding roller and rotate, and the steel cable other end drives back frame anticlockwise rotation and expandes simultaneously, makes the wheelchair expand and become the deck chair state, makes the wheelchair have the deck chair function, when patient shines the sun downstairs in the department of living, can expand the wheelchair and become the deck chair, makes patient can lie down, avoids patient to sit for a long time.

Description

Wheelchair for medical care with deck chair function

Technical Field

The invention relates to the technical field of medical care, in particular to a medical care wheelchair with a deck chair function.

Background

In hospitals, communities or families, a lot of patients need to receive medical care services, the medical care mainly aims to attend to the daily lives of the patients, and when the patients are subjected to medical care, most of the patients need to use wheelchairs to walk instead of walk.

The invention discloses a current wheelchair for medical care, such as a wheelchair for medical care disclosed in patent CN110236806A, which comprises a seat board, wherein protective covers are arranged on the outer walls of two sides of the seat board, an opening is formed in the outer wall of the bottom of each protective cover, each protective cover is of a semicircular structure, fixing frames are arranged on two sides of the outer wall of the bottom of the seat board, a through hole is formed in the outer wall of one side of each fixing frame, the inner walls of the two through holes are fixedly provided with a same connecting shaft through bearings, wheels are fixedly arranged on two sides of each connecting shaft through the bearings, and a supporting wheel is connected to the central axis position of each wheel through a rotating shaft, the invention can fill moxa into a friction ball through a detachable mode through a threaded through pipe, ventilate through a protective net cover, achieves the effects of absorbing moisture and removing bacteria, is beneficial to the health of a patient, meanwhile, the, when a patient shines the sun, the patient sits for a long time, the recovery of the patient is not facilitated, the wheelchair cannot be unfolded into a reclining chair, and the use is inconvenient, so that the medical nursing wheelchair with the function of the reclining chair is provided, and the problems are solved.

Disclosure of Invention

The invention aims to provide a medical care wheelchair with a deck chair function, and aims to solve the problems that the existing medical care wheelchair is single in function when in use, and when a patient is sunned, the patient sits for a long time, the recovery of the patient is not facilitated, the wheelchair cannot be unfolded into a deck chair, and the use is inconvenient.

In order to achieve the purpose, the invention provides the following technical scheme: a medical care wheelchair with a deck chair function comprises a wheelchair seat, a wheelchair wheel bracket is fixed at one side of the bottom of the wheelchair seat, wheelchair wheels are arranged at two sides of the wheelchair wheel bracket and are rotationally connected with the wheelchair wheel bracket through rotating shafts, wherein,

an auxiliary wheel bracket is fixed at the bottom of the other side of the wheelchair seat, auxiliary wheels are rotatably connected to the bottom of the auxiliary wheel bracket, a push bracket is rotatably connected to the end part of the wheelchair seat close to the auxiliary wheel bracket, and a backrest frame is rotatably connected to the end part of the wheelchair seat close to the wheelchair wheel bracket;

the two sides of the top of the wheelchair seat are fixedly provided with armrest frames, the bottom of the wheelchair seat close to the push bracket is rotatably connected with a hydraulic rod, one end of the hydraulic rod far away from the wheelchair seat is rotatably connected with the inner side of the push bracket, and the push bracket drives the backrest frame to rotate through a turnover mechanism;

the outside that the wheelchair seat spare was kept away from to the back frame is rotated and is connected with the head support frame, the rotation groove has been seted up to the tip that the back frame is close to the head support frame, the tip of head support frame is located the inside in rotation groove, the head support frame rotates through drive mechanism, be provided with locking mechanism in the pivot.

Preferably, the middle part of the bottom end of the wheelchair seat is rotatably connected with a rope winding roller, a steel rope is fixed on the inner side of the push bracket close to the lower part of the hydraulic rod, and one end of the steel rope, far away from the push bracket, is fixedly connected with the outer side of the backrest frame after bypassing the rope winding roller.

Preferably, the head support frame is close to the first reversing gear of avris fixedly connected with of back frame, the middle part that the back frame corresponds first reversing gear one side is fixed with the runing rest, the last rotation of runing rest is connected with the dwang, the end fixing that the dwang is close to first reversing gear has second reversing gear, the one end that second reversing gear was kept away from to the dwang is fixed with third reversing gear, one side that the wheelchair seat corresponds third reversing gear is fixed with fourth reversing gear.

Preferably, the first reversing gear and the second reversing gear are perpendicular to each other, and the first reversing gear is meshed with the second reversing gear.

Preferably, the third reversing gear is rotatably connected with the backrest frame through a rotating rod, and the third reversing gear is meshed with the fourth reversing gear.

Preferably, a locking box is fixed between the chair wheel supports, a sliding groove is formed in the locking box, rotating shaft grooves are formed in two sides of the sliding groove, the rotating shaft penetrates through the rotating shaft grooves and the sliding groove, a sliding frame is arranged in the sliding groove, a rope pulling groove is formed in the middle of one end of the locking box, a pull rope is fixed at one end, close to the rope pulling groove, of the sliding frame, one end, away from the sliding frame, of the pull rope is fixedly connected with the head support frame, a spring is arranged between the sliding frame and the rope pulling groove, first guide grooves are symmetrically formed in the locking box corresponding to the inner side of the sliding frame, first guide blocks are fixed on the outer side, corresponding to the first guide grooves, of the sliding frame, open grooves are formed in two sides of the sliding frame, locking clamps are symmetrically arranged on the inner side of the sliding frame, and one, the one end that the transfer line kept away from the locking clamp runs through the inside of open slot and is connected with the rotation of locking incasement wall, the carriage is close to the locking clamp both ends inboard and has seted up the second guide way, the end fixing that the locking clamp is close to the second guide way has the second guide block.

Preferably, the sliding frame is elastically connected with the locking box through a spring.

Preferably, the widths of the first guide block and the second guide block are respectively matched with the widths of the first guide groove and the second guide groove, and the first guide block and the second guide block respectively form a guide structure with the first guide groove and the second guide groove.

Preferably, the locking clamp and the locking box form a transmission structure through a transmission rod.

Compared with the prior art, the invention has the beneficial effects that:

1. this wheelchair for medical care with deck chair function, when the hydraulic stem extension, the hydraulic stem drives and pushes away bracket anticlockwise rotation and expandes, pushes away the bracket pulling steel cable simultaneously, makes the steel cable drive the wire winding roller and rotate, and the steel cable other end drives back frame anticlockwise rotation and expandes simultaneously, makes the wheelchair expand and become the deck chair state, makes the wheelchair have the deck chair function, when patient shines the sun downstairs in the department of living, can expand the wheelchair and become the deck chair, makes patient can lie down, avoids patient to sit for a long time.

2. This wheelchair for medical care with deck chair function, when back frame anticlockwise rotation, third reversing gear and fourth reversing gear produce the rotation, make fourth reversing gear drive third reversing gear and rotate, third reversing gear passes through the dwang and drives second reversing gear and rotate, second reversing gear drives head support frame tip through first reversing gear and rotates, make the head support frame expand, be convenient for expand the wheelchair and become the deck chair state while, make the head support frame support the back frame, it takes place to empty to avoid patient to lie when on the deck chair.

3. This wheelchair for medical care with deck chair function, when the head support frame expandes, head support frame pulling stay cord makes stay cord pulling carriage, makes the carriage remove to the stay cord groove direction, and when the carriage removed, the transfer line drove the locking clamp and is close to each other, makes the locking clamp press from both sides the countershaft tightly, avoids the pivot to take place to rotate easily, when making the wheelchair expand, can carry out automatic locking to the chair wheel, avoids the wheelchair to take place to remove easily.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the wheelchair in an unfolded configuration;

FIG. 4 is a schematic view of the internal structure of the locking mechanism of the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 1 according to the present invention.

In the figure: 1. a wheelchair seat; 2. a chair wheel support; 3. a chair wheel; 4. a rotating shaft; 5. an auxiliary wheel support; 6. an auxiliary wheel; 7. pushing the bracket; 8. a backrest frame; 9. a handrail frame; 10. a hydraulic lever; 11. a rope winding roller; 12. a steel cord; 13. a head support; 14. a rotating groove; 15. a first reversing gear; 16. rotating the bracket; 17. rotating the rod; 18. a second reversing gear; 19. a third reversing gear; 20. a fourth reversing gear; 21. locking the box; 22. a sliding groove; 23. a rotating shaft groove; 24. a carriage; 25. a rope pulling groove; 26. pulling a rope; 27. a spring; 28. a first guide groove; 29. a first guide block; 30. an open slot; 31. a locking clamp; 32. a transmission rod; 33. a second guide groove; 34. and a second guide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a medical care wheelchair with a reclining chair function comprises a wheelchair seat 1, a wheelchair wheel support 2, a wheelchair wheel 3, a rotating shaft 4, an auxiliary wheel support 5, an auxiliary wheel 6, a pushing support 7, a backrest frame 8, a handrail frame 9, a hydraulic rod 10, a rope winding roller 11, a steel rope 12, a head support frame 13, a rotating groove 14, a first reversing gear 15, a rotating support 16, a rotating rod 17, a second reversing gear 18, a third reversing gear 19, a fourth reversing gear 20, a locking box 21, a sliding groove 22, a rotating shaft groove 23, a sliding frame 24, a rope pulling groove 25, a rope 26, a spring 27, a first guide groove 28, a first guide block 29, an open groove 30, a locking clamp 31, a transmission rod 32, a second guide groove 33 and a second guide block 34, wherein the wheelchair wheel support 2 is fixed on one side of the bottom of the wheelchair seat 1, the wheelchair wheel support 2 is arranged on two sides, the wheelchair wheel 3 is rotatably connected with the wheelchair wheel support 2 through the rotating shaft 4, wherein the content of the first and second substances,

an auxiliary wheel support 5 is fixed at the bottom of the other side of the wheelchair seat 1, an auxiliary wheel 6 is rotatably connected to the bottom of the auxiliary wheel support 5, a push bracket 7 is rotatably connected to the end of the wheelchair seat 1 close to the auxiliary wheel support 5, and a backrest frame 8 is rotatably connected to the end of the wheelchair seat 1 close to the wheelchair wheel support 2;

the two sides of the top of the wheelchair seat 1 are fixed with armrest frames 9, the bottom of the wheelchair seat 1 close to the push bracket 7 is rotatably connected with a hydraulic rod 10, one end of the hydraulic rod 10 far away from the wheelchair seat 1 is rotatably connected with the inner side of the push bracket 7, and the push bracket 7 drives the backrest frame 8 to rotate through a turnover mechanism;

the middle part of the bottom end of the wheelchair seat 1 is rotatably connected with a rope winding roller 11, the inner side of the pushing bracket 7 close to the lower part of the hydraulic rod 10 is fixedly provided with a steel rope 12, one end of the steel rope 12 far away from the pushing bracket 7 bypasses the rope winding roller 11 and then is fixedly connected with the outer side of the backrest frame 8, when the hydraulic rod 10 extends, the hydraulic rod 10 drives the pushing bracket 7 to rotate and unfold anticlockwise, meanwhile, the pushing bracket 7 pulls the steel rope 12, the steel rope 12 drives the rope winding roller 11 to rotate, meanwhile, the other end of the steel rope 12 drives the backrest frame 8 to rotate and unfold anticlockwise, so that the wheelchair is unfolded to be in a reclining chair state, the wheelchair has a reclining chair function, when a patient shines the sun below a courtyard, the wheelchair can be unfolded to;

the outer side of the backrest frame 8, which is far away from the wheelchair seat 1, is rotatably connected with a head support frame 13, the end part of the backrest frame 8, which is close to the head support frame 13, is provided with a rotating groove 14, the end part of the head support frame 13 is positioned inside the rotating groove 14, the head support frame 13 rotates through a transmission mechanism, and a locking mechanism is arranged on the rotating shaft 4;

a first reversing gear 15 is fixedly connected to the side of the head support frame 13 close to the backrest frame 8, a rotating support 16 is fixed to the middle of one side of the backrest frame 8 corresponding to the first reversing gear 15, a rotating rod 17 is rotatably connected to the rotating support 16, a second reversing gear 18 is fixed to the end portion of the rotating rod 17 close to the first reversing gear 15, a third reversing gear 19 is fixed to one end of the rotating rod 17 far away from the second reversing gear 18, and a fourth reversing gear 20 is fixed to one side of the wheelchair seat 1 corresponding to the third reversing gear 19;

the first reversing gear 15 is vertical to the second reversing gear 18, the first reversing gear 15 is meshed with the second reversing gear 18, the third reversing gear 19 is rotatably connected with the backrest frame 8 through a rotating rod 17, the third reversing gear 19 is meshed with the fourth reversing gear 20, when the backrest frame 8 rotates anticlockwise, the third reversing gear 19 and the fourth reversing gear 20 rotate to enable the fourth reversing gear 20 to drive the third reversing gear 19 to rotate, the third reversing gear 19 drives the second reversing gear 18 to rotate through the rotating rod 17, the second reversing gear 18 drives the end part of the head support frame 13 to rotate through the first reversing gear 15, so that the head support frame 13 is unfolded, the wheelchair is conveniently unfolded into a reclining chair state, the head support frame 13 supports the backrest frame 8, and the patient is prevented from falling when lying on the reclining chair;

a locking box 21 is fixed between the chair wheel supports 2, a sliding groove 22 is formed in the locking box 21, rotating shaft grooves 23 are formed in two sides of the sliding groove 22, the rotating shaft 4 penetrates through the rotating shaft grooves 23 and the sliding groove 22, a sliding frame 24 is arranged in the sliding groove 22, a rope pulling groove 25 is formed in the middle of one end of the locking box 21, a pulling rope 26 is fixed at one end, close to the rope pulling groove 25, of the sliding frame 24, one end, far away from the sliding frame 24, of the pulling rope 26 is fixedly connected with the head support frame 13, and a spring 27 is arranged between the sliding frame 24 and the rope pulling groove 25;

the locking box 21 is symmetrically provided with first guide grooves 28 corresponding to the inner side of the sliding frame 24, first guide blocks 29 are fixed on the outer side of the sliding frame 24 corresponding to the first guide grooves 28, open grooves 30 are formed in two sides of the sliding frame 24, locking clamps 31 are symmetrically arranged on the inner side of the sliding frame 24, one side, close to the open grooves 30, of each locking clamp 31 is rotatably connected with a transmission rod 32, one end, far away from the locking clamps 31, of each transmission rod 32 penetrates through the inner part of the corresponding open groove 30 and is rotatably connected with the inner wall of the locking box 21, second guide grooves 33 are formed in the inner sides, close to the two ends of the locking clamps 31, of the sliding frame 24, and second;

the sliding frame 24 is elastically connected with the locking box 21 through the spring 27, the widths of the first guide block 29 and the second guide block 34 are respectively matched with the widths of the first guide groove 28 and the second guide groove 33, the first guide block 29 and the second guide block 34 respectively form a guide structure with the first guide groove 28 and the second guide groove 33, the locking clamp 31 and the locking box 21 form a transmission structure through the transmission rod 32, when the head support frame 13 is unfolded, the head support frame 13 pulls the pull rope 26 to enable the pull rope 26 to pull the sliding frame 24 to enable the sliding frame 24 to move towards the pull rope groove 25, when the sliding frame 24 moves, the transmission rod 32 drives the locking clamp 31 to mutually approach, the locking clamp 31 clamps the rotating shaft 4 to prevent the rotating shaft 4 from easily rotating, when the wheelchair is unfolded, the chair wheel 3 can be automatically locked to prevent the wheelchair from easily moving.

The working principle is as follows: when the wheelchair with the deck chair function for medical care is used, firstly, the hydraulic rod 10 is controlled to extend, the hydraulic rod 10 drives the push bracket 7 to rotate and expand anticlockwise, meanwhile, the push bracket 7 pulls the steel rope 12, the steel rope 12 drives the rope winding roller 11 to rotate, meanwhile, the other end of the steel rope 12 drives the backrest frame 8 to rotate and expand anticlockwise, so that the wheelchair is expanded to be in a deck chair state, the wheelchair has the deck chair function, when a patient shines sun below a courtyard, the wheelchair can be expanded to be a deck chair, the patient can lie down, and the patient is prevented from sitting for a long time;

when the backrest frame 8 rotates anticlockwise, the third reversing gear 19 and the fourth reversing gear 20 rotate, so that the fourth reversing gear 20 drives the third reversing gear 19 to rotate, the third reversing gear 19 drives the second reversing gear 18 to rotate through the rotating rod 17, the second reversing gear 18 drives the end part of the head support frame 13 to rotate through the first reversing gear 15, the head support frame 13 is unfolded, the wheelchair is unfolded into a deck chair state, the head support frame 13 supports the backrest frame 8, and a patient is prevented from falling when lying on the deck chair;

when the head support 13 is unfolded, the pull rope 26 is pulled by the head support 13, the sliding frame 24 is pulled by the pull rope 26, the sliding frame 24 moves towards the pull rope groove 25, when the sliding frame 24 moves, the transmission rod 32 drives the locking clamp 31 to be close to each other, the locking clamp 31 clamps the rotating shaft 4, the rotating shaft 4 is prevented from rotating easily, when the wheelchair is unfolded, the wheel 3 can be automatically locked, and the wheelchair is prevented from moving easily.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A medical care wheelchair with a reclining chair function, comprising a wheelchair seat (1), characterized in that: a chair wheel bracket (2) is fixed at one side of the bottom of the wheelchair seat (1), chair wheels (3) are arranged at two sides of the chair wheel bracket (2), the chair wheels (3) are rotationally connected with the chair wheel bracket (2) through a rotating shaft (4), wherein,

an auxiliary wheel support (5) is fixed at the bottom of the other side of the wheelchair seat (1), an auxiliary wheel (6) is rotatably connected to the bottom of the auxiliary wheel support (5), a push bracket (7) is rotatably connected to the end, close to the auxiliary wheel support (5), of the wheelchair seat (1), and a backrest frame (8) is rotatably connected to the end, close to the wheelchair wheel support (2), of the wheelchair seat (1);

the backrest frame is characterized in that armrest frames (9) are fixed on two sides of the top of the wheelchair seat (1), a hydraulic rod (10) is rotatably connected to the bottom of the wheelchair seat (1) close to the push bracket (7), one end, far away from the wheelchair seat (1), of the hydraulic rod (10) is rotatably connected with the inner side of the push bracket (7), and the push bracket (7) drives the backrest frame (8) to rotate through a turnover mechanism;

the outside that wheelchair seat spare (1) was kept away from in back frame (8) rotates and is connected with head support frame (13), rotation groove (14) have been seted up to the tip that back frame (8) are close to head support frame (13), the tip of head support frame (13) is located the inside that rotates groove (14), head support frame (13) rotate through drive mechanism, be provided with locking mechanism in pivot (4).

2. The medical care wheelchair having a reclining chair function according to claim 1, wherein: tilting mechanism includes wire winding roller (11) and steel cable (12), the bottom middle part of wheelchair seat (1) rotates and is connected with wire winding roller (11), push away inboard that bracket (7) is close to hydraulic stem (10) below and be fixed with steel cable (12), steel cable (12) are kept away from the one end that pushes away bracket (7) and are walked around behind wire winding roller (11) and back frame (8) outside fixed connection.

3. The medical care wheelchair having a reclining chair function according to claim 1, wherein: the transmission mechanism comprises a first reversing gear (15), a rotating bracket (16), a rotating rod (17), a second reversing gear (18), a third reversing gear (19) and a fourth reversing gear (20), the side of the head supporting frame (13) close to the backrest frame (8) is fixedly connected with a first reversing gear (15), a rotating bracket (16) is fixed in the middle of one side of the backrest frame (8) corresponding to the first reversing gear (15), a rotating rod (17) is rotatably connected to the rotating bracket (16), a second reversing gear (18) is fixed at the end part of the rotating rod (17) close to the first reversing gear (15), a third reversing gear (19) is fixed at one end of the rotating rod (17) far away from the second reversing gear (18), a fourth reversing gear (20) is fixed on one side of the wheelchair seat (1) corresponding to the third reversing gear (19).

4. The medical care wheelchair having a reclining chair function according to claim 3, wherein: the first reversing gear (15) and the second reversing gear (18) are perpendicular to each other, and the first reversing gear (15) is meshed with the second reversing gear (18).

5. The medical care wheelchair having a reclining chair function according to claim 3, wherein: the third reversing gear (19) is rotatably connected with the backrest frame (8) through a rotating rod (17), and the third reversing gear (19) is meshed with the fourth reversing gear (20).

6. The medical care wheelchair having a reclining chair function according to claim 1, wherein: the locking mechanism comprises a locking box (21), a sliding groove (22), a rotating shaft groove (23), a sliding frame (24), a rope pulling groove (25), a pulling rope (26), a spring (27), a first guide groove (28), a first guide block (29), an open groove (30), a locking clamp (31), a transmission rod (32), a second guide groove (33) and a second guide block (34), wherein the locking box (21) is fixed between the chair wheel brackets (2), the sliding groove (22) is formed in the locking box (21), the rotating shaft groove (23) is formed in two sides of the sliding groove (22), the rotating shaft (4) penetrates through the rotating shaft groove (23) and the sliding groove (22), the sliding frame (24) is arranged in the sliding groove (22), the rope pulling groove (25) is formed in the middle of one end of the locking box (21), the pulling rope (26) is fixed at one end, close to the rope pulling groove (25), of the sliding frame (24), one end and head support frame (13) fixed connection of carriage (24) are kept away from in stay cord (26), carriage (24) are provided with spring (27) to between stay cord groove (25), first guide way (28) have been seted up to the inboard symmetry that locking case (21) correspond carriage (24), the outside that carriage (24) correspond first guide way (28) is fixed with first guide block (29), open slot (30) have been seted up to the both sides of carriage (24), the inboard symmetry of carriage (24) is provided with locking clamp (31), one side rotation that locking clamp (31) are close to open slot (30) is connected with transfer line (32), the one end that locking clamp (31) were kept away from in transfer line (32) runs through the inside of open slot (30) and is connected with locking case (21) inner wall rotation, carriage (24) are close to locking clamp (31) both ends inboard and have seted up second guide way (33), and a second guide block (34) is fixed at the end part of the locking clamp (31) close to the second guide groove (33).

7. The medical care wheelchair having a reclining chair function according to claim 6, wherein: the sliding frame (24) is elastically connected with the locking box (21) through a spring (27).

8. The medical care wheelchair having a reclining chair function according to claim 6, wherein: the widths of the first guide block (29) and the second guide block (34) are respectively matched with the widths of the first guide groove (28) and the second guide groove (33), and the first guide block (29) and the second guide block (34) respectively form a guide structure with the first guide groove (28) and the second guide groove (33).

9. The medical care wheelchair having a reclining chair function according to claim 6, wherein: the locking clamp (31) and the locking box (21) form a transmission structure through a transmission rod (32).