CN112618255B

CN112618255B - Medical leg bone rehabilitation physiotherapy mechanism

Info

Publication number: CN112618255B
Application number: CN202011468067.XA
Authority: CN
Inventors: 刘曰兴; 蔡建峰; 刘莲菲; 王代分
Original assignee: Binzhou Xinyue Rehabilitation Hospital Co ltd; Shandong Guyue Health Care Appliance Co ltd; Shandong Xinyue Health Technology Co ltd
Current assignee: Binzhou Xinyue Rehabilitation Hospital Co ltd; Shandong Guyue Health Care Appliance Co ltd; Shandong Xinyue Health Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-11-29
Anticipated expiration: 2040-12-14
Also published as: CN112618255A

Abstract

The invention relates to the technical field of orthopedic rehabilitation, and discloses a medical leg and bone rehabilitation physiotherapy mechanism which comprises a support frame, wherein a fixed rod is welded on the surface of the support frame, the left end of the fixed rod is rotatably connected with a rotating rod, a recovery mechanism is arranged on the surface of the rotating rod, a connecting plate is fixedly connected to the surface of the support frame, a driving mechanism is arranged inside the connecting plate, and an auxiliary mechanism is arranged on the surface of the rotating plate. This kind of medical treatment leg bone rehabilitation physiotherapy mechanism, at first through the direct of shank go on with the auxiliary drive of motor, drive the auxiliary motion of power shaft to make the user trample by oneself when using, also can carry out the auxiliary drive of motor, use the user of different recovered time quantums, avoid new patient to control hard of not good shank when carrying out the recovery, to the secondary damage of leg bone, the improvement of very big degree the security of user when the recovery is strong.

Description

Medical leg bone rehabilitation physiotherapy mechanism

Technical Field

The invention relates to the technical field of orthopedics rehabilitation, in particular to a medical leg and bone rehabilitation physiotherapy mechanism.

Background

Orthopedics is one of the most common departments in all hospitals, and mainly studies the anatomy, physiology and pathology of skeletal muscle system, and maintains and develops the normal form and function of the system by using medicines, operations and physical methods. With the change of times and society, the orthopedic injury spectrum has obvious changes, for example, diseases such as osteoarticular tuberculosis, osteomyelitis, poliomyelitis and the like are obviously reduced, and the injuries caused by traffic accidents are obviously increased. The change of the orthopedic injury spectrum requires the orthopedics to be advanced with time.

At present, most of legs directly walk on the ground in the process of rehabilitation, so that when the legs are preliminarily rehabilitated, the legs are stressed by the weight of self weight and suddenly can cause pressure to leg bones, secondary injury to the leg bones can be caused, and in some rehabilitated devices, many of the legs are basically rehabilitated by movement when the leg rehabilitation device is used, muscles of the legs cannot be massaged, the problem of injury to the legs caused by excessive rehabilitation is easily caused, and therefore the medical leg bone rehabilitation physical therapy mechanism is provided to solve the problem.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a medical leg bone rehabilitation physiotherapy mechanism, which solves the problems of leg bone rehabilitation, uncontrollable exertion and muscle soreness.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a medical treatment leg bone rehabilitation physiotherapy mechanism, includes the support frame, the skin weld of support frame has the dead lever, the left end of dead lever is rotated and is connected with the dwang, the surface of dwang is provided with recovery mechanism, the fixed surface of support frame is connected with the connecting plate, the inside of connecting plate is provided with actuating mechanism, the left side fixedly connected with connecting axle of connecting plate, the sliding surface of connecting axle is connected with the seat frame, the top fixedly connected with seat of seat frame, the inside of connecting plate is rotated and is connected with the rotor plate, the surface of rotor plate is provided with complementary unit.

Preferably, the surface of the rotating plate is fixedly connected with a clamping plate, the upper surface of the connecting plate is provided with a clamping groove, and the inner wall of the clamping groove is clamped with the surface of the clamping plate.

Preferably, actuating mechanism is including the motor, the output of motor pass the inside of connecting plate and with drive gear's rear portion fixed connection, drive gear's surface meshing has drive gear, drive gear's axle center department fixedly connected with power shaft, the equal fixedly connected with mounting panel in both ends of power shaft, the surface rotation of mounting panel is connected with the footboard.

Preferably, the surface of the power shaft is rotatably connected inside the connecting plate, and the elastic band is clamped on the upper surface of the pedal.

Preferably, resume the mechanism including the pillar, the inside sliding connection of pillar is on the surface of dwang, the inside threaded connection who sits the frame has the lead screw, the right-hand member of lead screw is rotated with the left end of connecting axle and is connected, the surface rotation of lead screw is connected in the inside of support frame.

Preferably, the surperficial threaded connection of dwang has the removal frame, the inside sliding connection who removes the frame has the gag lever post, the both ends fixed connection of gag lever post is on the surface of support frame, the skin weld that removes the frame has the extension board, the last skin weld of extension board has two positioning spring, positioning spring's top welding has the support commentaries on classics board, the surface that supports the commentaries on classics board is provided with massage device.

Preferably, massage device is including last auxiliary frame and lower auxiliary frame, the inside of going up auxiliary frame and lower auxiliary frame all rotates and is connected with a plurality of massage stick, the bottom welding of going up the auxiliary frame has the adapter sleeve, the inside sliding connection of adapter sleeve has the slip post, buffer spring has been cup jointed on the surface of adapter sleeve, buffer spring's top fixed connection is on the surface of adapter sleeve, buffer spring's bottom welding is at the upper surface that supports the revolving plate, the anterior welding of lower auxiliary frame is at the rear portion that supports the revolving plate, the bottom welding of slip post is at the upper surface that supports the revolving plate.

Preferably, the auxiliary mechanism comprises a holding rod, a clamping sleeve is clamped on the surface of the holding rod, a fixed plate is fixedly connected to the surface of the clamping sleeve, and the rear portion of the fixed plate is welded on the surface of the rotating plate.

Preferably, the bottom welding of holding rod has the turning block, the rear portion of turning block is rotated and is connected with the rotation post, the surface rotation of rotation post is connected with the drive shaft, the surface rotation of drive shaft is connected in the inside of rotor plate, the fixed surface of drive shaft is connected with the magnetic sheet, the fixed surface of drive shaft is connected with belt pulley one, the surface of belt pulley one is passed through the belt and is connected with the surface transmission of belt pulley two, the axle center fixed connection of belt pulley two is on the surface of power shaft.

Compared with the prior art, the invention provides a medical leg bone rehabilitation physiotherapy mechanism, which has the following beneficial effects:

1. this kind of medical treatment leg bone rehabilitation physiotherapy mechanism, at first through the direct of shank go on with the auxiliary drive of motor, drive the auxiliary motion of power shaft to make the user trample by oneself when using, also can carry out the auxiliary drive of motor, use the user of different recovered time quantums, avoid new patient to control hard of not good shank when carrying out the recovery, to the secondary damage of leg bone, the improvement of very big degree the security of user when the recovery is strong.

2. This kind of medical treatment leg bone rehabilitation physiotherapy mechanism, when the shank in the motion process, the above-mentioned a plurality of massage stick come to carry out the roll massage to the muscle skin of upper and lower part for leg bone is when the motion, and muscle on every side can be more relax, further improvement the recovered effect of leg bone rehabilitation.

3. This kind of medical treatment leg bone rehabilitation physiotherapy mechanism plays taut effect through buffer spring to two auxiliary frames for the auxiliary frame can be fine contacts with shank muscle, can not become flexible, causes the condition that the massage became invalid, improves the whole effect of whole shank massage.

4. This kind of medical treatment leg bone rehabilitation physiotherapy mechanism, through the rotation of control lead screw, and two pillars play the spacing effect of fine support, will delay whole gravity for bearing capacity increases, and restricts the position of whole seat frame, makes the personnel of high difference can carry out the position of controlling the seat by oneself, the use that has made things convenient for the patient of very big degree.

5. This kind of medical treatment leg bone rehabilitation physiotherapy mechanism can rotate the holding rod, utilizes the transmission of belt with the rotation of direct control power shaft, and then drives the motion and then the rehabilitation of shank to dynamics that utilizes the hand that can be fine comes the speed that the direct control shank is recovered healthy, comes further improvement patient's use impression, and the hand also can be taken exercise simultaneously, has increaseed holistic effect of being recovered healthy.

Drawings

FIG. 1 is a schematic view of the overall structure of a physical therapy mechanism for rehabilitation of leg bones according to the present invention;

FIG. 2 is a schematic view of the connection between the connection plate and the rotation plate of the physical therapy mechanism for rehabilitation of leg bones according to the present invention;

FIG. 3 is a schematic view of a driving mechanism of a therapeutic leg rehabilitation physiotherapy mechanism according to the present invention;

FIG. 4 is a schematic view of a rehabilitation mechanism of a physical therapy mechanism for rehabilitation of leg bones according to the present invention;

FIG. 5 is a schematic view of a massage device of a therapeutic leg rehabilitation physiotherapy mechanism according to the present invention;

FIG. 6 is a schematic view of a movable frame of a therapeutic leg rehabilitation physiotherapy mechanism according to the present invention;

fig. 7 is a schematic view of an auxiliary mechanism of a medical leg bone rehabilitation physiotherapy mechanism provided by the invention.

In the figure: 1. a support frame; 2. fixing the rod; 3. rotating the rod; 4. a connecting plate; 5. a connecting shaft; 6. a drive mechanism; 61. a motor; 62. a drive gear; 63. a transmission gear; 64. a power shaft; 65. a mounting plate; 66. a pedal; 7. a seat frame; 8. a recovery mechanism; 801. a support post; 802. a screw rod; 803. a movable frame; 804. a limiting rod; 805. a support plate; 806. a positioning spring; 807. supporting the rotating plate; 808. a massage device; 8081. a lower auxiliary frame; 8082. connecting sleeves; 8083. an upper auxiliary frame; 8084. a massage bar; 8085. a buffer spring; 8086. a sliding post; 9. a seat plate; 10. a rotating plate; 101. clamping a plate; 102. a card slot; 11. an auxiliary mechanism; 111. a holding rod; 112. rotating the block; 113. a fixing plate; 114. a card sleeve; 115. rotating the column; 116. a magnetic plate; 117. a drive shaft; 118. a first belt pulley; 119. a second belt pulley.

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.

Example 1

Please refer to fig. 1-6, a medical leg bone rehabilitation physiotherapy mechanism, including support frame 1, the skin weld of support frame 1 has dead lever 2, the left end of dead lever 2 rotates and is connected with dwang 3, the surface of dwang 3 is provided with recovery mechanism 8, the fixed surface of support frame 1 is connected with connecting plate 4, the inside of connecting plate 4 is provided with actuating mechanism 6, the left side fixedly connected with connecting axle 5 of connecting plate 4, the sliding surface of connecting axle 5 is connected with seat 7, the top fixedly connected with seat 9 of seat 7, the inside of connecting plate 4 rotates and is connected with rotor plate 10, the surface of rotor plate 10 is provided with complementary unit 11.

In this embodiment, the surface of the rotating plate 10 is fixedly connected with a clamping plate 101, the upper surface of the connecting plate 4 is provided with a clamping groove 102, and the inner wall of the clamping groove 102 is clamped with the surface of the clamping plate 101.

Through the rotation of rotor plate 10, provide the effect of stepping down for the user can sit on seat 9 in the device, later resets rotor plate 10 again, makes cardboard 101 card realize fixing rotor plate 10 on the position of draw-in groove 102, makes when using, rotor plate 10 can not rock about, influences the use.

Further, the driving mechanism 6 comprises a motor 61, an output end of the motor 61 penetrates through the inside of the connecting plate 4 and is fixedly connected with the rear portion of the driving gear 62, a transmission gear 63 is meshed with the surface of the driving gear 62, a power shaft 64 is fixedly connected to the axis of the transmission gear 63, two ends of the power shaft 64 are fixedly connected with a support plate 65, and a pedal 66 is rotatably connected to the surface of the support plate 65.

The auxiliary motion of the power shaft 64 is driven through the meshing transmission of the gears, so that the user can step on the power shaft by himself when using the electric motor 61, and the electric motor 61 can be driven to assist in driving so as to use the user in different rehabilitation time periods, avoid the problem that a new patient cannot control the leg forcefully when rehabilitating, avoid secondary damage to the leg bones and improve the safety of the user when rehabilitating to a great extent.

Furthermore, the surface of the power shaft 64 is rotatably connected inside the connecting plate 4, the upper surface of the pedal 66 is clamped with an elastic band, and the feet of the patient can be slightly fixed through the clamping of the elastic band, so that the feet of the patient are prevented from falling off in the rehabilitation process, the collision and the damage to the legs are avoided, and the use safety is further improved.

In addition, recovery mechanism 8 is including pillar 801, pillar 801's inside sliding connection is on the surface of dwang 3, the inside threaded connection of sitting frame 7 has lead screw 802, the right-hand member of lead screw 802 rotates with the left end of connecting axle 5 to be connected, the inside at support frame 1 is connected in the surface rotation of lead screw 802, the rotation of control lead screw 802, and two pillars 801 play the spacing effect of fine support, will delay whole gravity, make bearing capacity strengthen, and restrict the position of whole sitting frame 7, make the personnel of high difference can carry out the position of self-control seat 9, the use that has made things convenient for the patient of very big degree.

In addition, the surface of the rotating rod 3 is connected with a moving frame 803 in a threaded manner, the inside of the moving frame 803 is connected with a limiting rod 804 in a sliding manner, two ends of the limiting rod 804 are fixedly connected to the surface of the support frame 1, a support plate 805 is welded to the surface of the moving frame 803, two positioning springs 806 are welded to the upper surface of the support plate 805, a supporting rotating plate 807 is welded to the tops of the positioning springs 806, and a massage device 808 is arranged on the surface of the supporting rotating plate 807.

Through the rotation to dwang 3, utilize threaded connection's mode, come the change to the left and right positions of removal frame 803 for the crowd of co-altitude all can use on the device, has improved user's use and has felt, increases user's experience.

It should be noted that the massage device 808 includes an upper auxiliary frame 8083 and a lower auxiliary frame 8081, the interiors of the upper auxiliary frame 8083 and the lower auxiliary frame 8081 are both rotatably connected with a plurality of massage rods 8084, a connecting sleeve 8082 is welded at the bottom of the upper auxiliary frame 8083, a sliding column 8086 is slidably connected inside the connecting sleeve 8082, a buffer spring 8085 is sleeved on the surface of the connecting sleeve 8082, the top of the buffer spring 8085 is fixedly connected to the surface of the connecting sleeve 8082, the bottom of the buffer spring 8085 is welded on the upper surface of the supporting rotating plate 807, the front of the lower auxiliary frame 8081 is welded at the rear of the supporting rotating plate 807, and the bottom of the sliding column 8086 is welded on the upper surface of the supporting rotating plate 807.

In the motion process of the legs, the massage rods 8084 on the upper part massage the muscle skin of the upper part and the lower part in a rolling manner, the surrounding muscles can be more relaxed, the rehabilitation effect of leg bone rehabilitation is further improved, the buffer springs 8085 enable the auxiliary frame to be in good contact with the leg muscles, the situation of massage failure cannot be loosened, and meanwhile, the massage rod can also be used for dealing with leg crowds without thickness.

Example 2

Referring to fig. 7, on the basis of embodiment 1, in this embodiment, the auxiliary mechanism 11 includes a holding rod 111, a clamping sleeve 114 is clamped on a surface of the holding rod 111, a fixing plate 113 is fixedly connected to a surface of the clamping sleeve 114, and a rear portion of the fixing plate 113 is welded on a surface of the rotating plate 10, so that the holding rod 111 can be clamped and fixed by the design of the clamping sleeve 114 and can be conveniently taken out during rotation, so that a patient can change the shape, and the legs can be driven and rehabilitated by rotation of the hands, so that the driving manner can be diversified, and multiple options of the patient are also provided.

In this embodiment, a rotating block 112 is welded at the bottom of the holding rod 111, a rotating column 115 is rotatably connected to the rear portion of the rotating block 112, a driving shaft 117 is rotatably connected to the surface of the rotating column 115, the surface of the driving shaft 117 is rotatably connected to the inside of the rotating plate 10, a magnetic plate 116 is fixedly connected to the surface of the driving shaft 117, a first belt pulley 118 is fixedly connected to the surface of the driving shaft 117, the surface of the first belt pulley 118 is in transmission connection with the surface of a second belt pulley 119 through a belt, and the axis of the second belt pulley 119 is fixedly connected to the surface of the power shaft 64, so that the holding rod 111 can be rotated.

The holding rod 111 through the hand rotates and then the rotation of control drive shaft 117, utilizes the transmission of belt with the rotation of direct control power shaft 64, and then drives the motion of shank, and then is strong again to the dynamics of the utilization hand that can be fine comes the speed that the direct control shank is strong again, and the hand also can be taken exercise simultaneously, has increaseed holistic effect of strong again.

The working principle is that when a user needs to do rehabilitation exercise, the rotation of the rotating plate 10 can be controlled firstly to provide a abdicating effect, the user can enter the device and sit on the seat plate 9, then the rotating plate 10 is reset, the clamping plate 101 is clamped on the position of the clamping groove 102, then the user can hold the holding rod 111 with two hands, the feet are clamped on the pedal 66 and are slightly fixed by the elastic band, then the user can apply force to the legs to step on the pedal 66 to rotate, the legs move to conduct rehabilitation exercise, meanwhile, the auxiliary driving of the motor 61 can be adopted, the auxiliary movement of the power shaft 64 is driven through the meshing transmission of the gears, so that the user can perform self-stepping and can also perform the auxiliary driving of the motor 61 to use the user in different rehabilitation time periods, the problem that the force of the legs of a new patient cannot be well controlled during rehabilitation is avoided, and the secondary damage to the leg bones is avoided, and the safety of the user during rehabilitation is greatly improved.

Can rotate holding rod 111 simultaneously, come out holding rod 111 from cutting ferrule 114 internal rotation, make turning block 112 card attract with magnetic sheet 116 in the inside of drive shaft 117, later can rotate and then control drive shaft 117's rotation through holding rod 111 of hand, utilize the transmission of belt with the rotation of direct control power shaft 64, and then drive the motion of shank, and then it is strong again, thereby the dynamics of utilization hand that can be fine, come the speed that the direct control shank is strong again, utilize shank control, hand control and three kinds of modes of electric control come to drive and are strong again, thereby made things convenient for the recovered motion of patient different time quantums, make recovered effect more effective.

In the process of the leg moving, the leg is placed between the upper auxiliary frame 8083 and the lower auxiliary frame 8081, when the leg is in the moving process, the massage rods 8084 on the leg roll the muscle skin of the upper part and the lower part to massage, so that the leg bone can be moved, the surrounding muscles can be relaxed more, the rehabilitation effect of the leg bone rehabilitation is further improved, the buffer spring 8085 is used for two auxiliary frames to play a tensioning role, so that the auxiliary frames can be well contacted with the leg muscles, the leg muscles cannot be loosened, the massage failure condition is caused, meanwhile, leg crowds without thickness can be responded, the rotation of the screw rod 802 can be controlled, the two support columns 801 play a good supporting and limiting effect, the whole gravity can be buffered, the bearing capacity is improved, the position of the whole seat frame 7 is limited, so that people with different heights can automatically control the position of the seat plate 9, and the use of a patient is facilitated to a great extent.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a medical treatment leg bone rehabilitation physiotherapy mechanism, includes support frame (1), its characterized in that: the seat is characterized in that a fixing rod (2) is welded on the surface of the support frame (1), the left end of the fixing rod (2) is rotatably connected with a rotating rod (3), a recovery mechanism (8) is arranged on the surface of the rotating rod (3), a connecting plate (4) is fixedly connected with the surface of the support frame (1), a driving mechanism (6) is arranged inside the connecting plate (4), a connecting shaft (5) is fixedly connected with the left side of the connecting plate (4), a seat frame (7) is slidably connected with the surface of the connecting shaft (5), a seat plate (9) is fixedly connected with the top of the seat frame (7), a rotating plate (10) is rotatably connected with the inside of the connecting plate (4), and an auxiliary mechanism (11) is arranged on the surface of the rotating plate (10);

the driving mechanism (6) comprises a motor (61), the output end of the motor (61) penetrates through the inside of the connecting plate (4) and is fixedly connected with the rear part of the driving gear (62), a transmission gear (63) is meshed with the surface of the driving gear (62), a power shaft (64) is fixedly connected to the axis of the transmission gear (63), two ends of the power shaft (64) are fixedly connected with bracket plates (65), and the surfaces of the bracket plates (65) are rotatably connected with pedals (66);

the surface of the power shaft (64) is rotatably connected inside the connecting plate (4), and the upper surface of the pedal (66) is clamped with an elastic band;

the restoring mechanism (8) comprises a supporting column (801), the inner part of the supporting column (801) is connected to the surface of the rotating rod (3) in a sliding mode, the inner part of the seat frame (7) is connected with a screw rod (802) in a threaded mode, the right end of the screw rod (802) is connected with the left end of the connecting shaft (5) in a rotating mode, and the surface of the screw rod (802) is connected to the inner part of the supporting frame (1) in a rotating mode;

the surface of the rotating rod (3) is in threaded connection with a moving frame (803), a limiting rod (804) is connected to the inside of the moving frame (803) in a sliding mode, two ends of the limiting rod (804) are fixedly connected to the surface of the support frame (1), a support plate (805) is welded to the surface of the moving frame (803), two positioning springs (806) are welded to the upper surface of the support plate (805), a supporting rotating plate (807) is welded to the tops of the positioning springs (806), and a massage device (808) is arranged on the surface of the supporting rotating plate (807);

massage device (808) are including last auxiliary frame (8083) and lower auxiliary frame (8081), the inside of going up auxiliary frame (8083) and lower auxiliary frame (8081) all rotates and is connected with a plurality of massage stick (8084), the bottom welding of going up auxiliary frame (8083) has adapter sleeve (8082), the inside sliding connection of adapter sleeve (8082) has sliding column (8086), buffer spring (8085) have been cup jointed on the surface of adapter sleeve (8082), the top fixed connection of buffer spring (8085) is on the surface of adapter sleeve (8082), the bottom welding of buffer spring (8085) is at the upper surface that supports commentaries on classics board (807), the anterior welding of lower auxiliary frame (8081) is at the rear portion that supports commentaries on classics board (807), the bottom welding of sliding column (8086) is at the upper surface that supports commentaries on classics board (807).

2. The medical leg bone rehabilitation physiotherapy mechanism according to claim 1, wherein: the surface of the rotating plate (10) is fixedly connected with a clamping plate (101), the upper surface of the connecting plate (4) is provided with a clamping groove (102), and the inner wall of the clamping groove (102) is clamped with the surface of the clamping plate (101).

3. The medical leg bone rehabilitation physiotherapy mechanism according to claim 1, characterized in that: the auxiliary mechanism (11) comprises a holding rod (111), a clamping sleeve (114) is clamped on the surface of the holding rod (111), a fixing plate (113) is fixedly connected to the surface of the clamping sleeve (114), and the rear portion of the fixing plate (113) is welded on the surface of the rotating plate (10).

4. The medical leg bone rehabilitation physiotherapy mechanism according to claim 3, wherein: the welding of the bottom of holding rod (111) has turning block (112), the rear portion of turning block (112) is rotated and is connected with rotation post (115), the surface of rotation post (115) is rotated and is connected with drive shaft (117), the surface of drive shaft (117) is rotated and is connected in the inside of rotor plate (10), the fixed surface of drive shaft (117) is connected with magnetic sheet (116), the fixed surface of drive shaft (117) is connected with belt pulley (118), the surface of belt pulley (118) is passed through the belt and is connected with the surface transmission of belt pulley two (119), the axle center fixed connection of belt pulley two (119) is on the surface of power shaft (64).