阅读说明：本技术 一种心肺耐力测试仪机械传动机构 (Mechanical transmission mechanism of heart-lung endurance tester ) 是由 赵东红 张永超 于 2020-05-25 设计创作，主要内容包括：本发明属于传动机构领域,尤其是一种心肺耐力测试仪机械传动机构,包括底板,所述底板的顶部固定安装有罩壳,底板的顶部固定安装有支架,且支架位于罩壳内,支架上转动安装有主轴,主轴的一端延伸至支架的外侧,主轴设有第一同步轮,主轴的另一端延伸至支架的外侧,主轴上固定安装有驱动同步轮,支架上转动安装有从动轴,从动轴的两侧均延伸至支架的外侧,从动轴的一端固定套设有第二同步轮,从动轴的另一端固定安装有第三同步轮。本发明设计合理,重量轻优化结构,整合电路,选用铝合金材料,很大程度减轻了机构的重量,安装方便,成本低,精度高,选用精密计时同步带,传动精度高于原机构链条,普通同步带传动。(The invention belongs to the field of transmission mechanisms, and particularly relates to a mechanical transmission mechanism of a heart-lung endurance tester, which comprises a bottom plate, wherein a housing is fixedly arranged at the top of the bottom plate, a support is fixedly arranged at the top of the bottom plate and is positioned in the housing, a main shaft is rotatably arranged on the support, one end of the main shaft extends to the outer side of the support, the main shaft is provided with a first synchronizing wheel, the other end of the main shaft extends to the outer side of the support, a driving synchronizing wheel is fixedly arranged on the main shaft, a driven shaft is rotatably arranged on the support, two sides of the driven shaft extend to the outer side of the support, a second synchronizing wheel is fixedly sleeved at one end of the driven shaft, and a third synchronizing wheel is fixedly arranged at the other end of the driven shaft. The invention has reasonable design, light weight, optimized structure, integrated circuit, aluminum alloy material, convenient installation, low cost and high precision, selects the precise timing synchronous belt, and has higher transmission precision than the original mechanism chain and the common synchronous belt.)

1. The utility model provides a heart-lung endurance tester mechanical transmission mechanism, including bottom plate (15), a serial communication port, the top fixed mounting of bottom plate (15) has housing (16), the top fixed mounting of bottom plate (15) has support (7), and support (7) are located housing (16), rotate on support (7) and install main shaft (1), the one end of main shaft (1) extends to the outside of support (7), main shaft (1) is equipped with first synchronizing wheel (4), the other end of main shaft (1) extends to the outside of support (7), fixed mounting has drive synchronizing wheel (12) on main shaft (1), rotate on support (7) and install driven shaft (5), the both sides of driven shaft (5) all extend to the outside of support (7), the one end fixed mounting of driven shaft (5) has second synchronizing wheel (6), the other end fixed mounting of driven shaft (5) has third synchronizing wheel (11), a first synchronous belt (13) is connected between the driving synchronous wheel (12) and the third synchronous wheel (11) in a transmission manner, a second synchronous belt (14) is connected between the first synchronous wheel (4) and the second synchronous wheel (6) in a transmission manner, a copper disc (2) is fixedly installed on one side of the first synchronous wheel (4), a coil (3) is fixedly installed on the support (7), an induction circuit board (8) is arranged on the support (7), a circular groove is formed in the second synchronous wheel (6), and a circular magnet (9) is fixedly installed in the circular groove in the second synchronous wheel (6);

rubber sheaths (17) are installed at four corners of a bottom plate of the bottom plate (15), a first handlebar seat (18) is fixedly installed at the top of the bottom plate (15), a second handlebar seat (19) is installed on the first handlebar seat (18) in a sliding mode, an elastic handle (20) is arranged between the first handlebar seat (18) and the second handlebar seat (19), a display (21) is fixedly installed at the top of the second handlebar seat (19), a handlebar (22) is fixedly installed at one side of the second handlebar seat (19), a first handlebar seat rod (23) is fixedly installed at the top of the bottom plate (15), a second handlebar rod (24) is arranged on the first handlebar seat rod (23), a saddle (25) is fixedly installed at the top of the second handlebar rod (24), a first groove (26) is formed in the top of the first handlebar rod (23), the second handlebar rod (24) is installed in the first groove (26) in a sliding mode, a plurality of adjusting grooves (27) are formed in one side of the second handlebar rod (24), threaded holes (28) are formed in the inner wall of one side of the first groove (26), a screw rod (29) is installed in the threaded holes (28) in a threaded mode, the screw rod (29) is matched with the corresponding adjusting groove (27), one end of the screw rod (29) extends to the outer side of the first seat rod (23) and a knob (30) is fixedly installed at one end of the screw rod.

2. The mechanical transmission mechanism of a cardiopulmonary endurance tester according to claim 1, in which a bearing housing is fixedly mounted on the support (7), and a bearing is mounted in the bearing housing.

3. The mechanical transmission mechanism of a cardiopulmonary endurance tester according to claim 1, wherein the frame (7) has a first rotation hole, and the main shaft (1) is rotatably connected to the first rotation hole.

4. The mechanical transmission mechanism of a cardiopulmonary endurance tester according to claim 1, wherein the frame (7) has a second rotation hole, and the driven shaft is rotatably mounted in the second rotation hole.

5. The mechanical transmission mechanism of the cardiopulmonary endurance tester according to claim 1, wherein the same cross beam is welded between the first handlebar seat (18) and the first seat bar (23).

6. The mechanical transmission mechanism of a heart-lung endurance testing machine according to claim 1, wherein six M5x20 socket head cap screws are used on the driving synchronizing wheel (12), and the socket head cap screws are adapted to the main shaft (1).

7. The mechanical transmission mechanism of the cardiopulmonary endurance tester according to claim 1, in which a stopper is welded to an upper end of the second carriage rod (24).

8. The mechanical transmission mechanism of a cardiopulmonary endurance tester according to claim 1, in which the number of said adjustment grooves (27) is six to eight, and six to eight adjustment grooves (27) are equally spaced.

9. The mechanical transmission mechanism of the cardiopulmonary endurance tester according to claim 1, wherein a bearing is installed between the driving synchronizing wheel (12) and the main shaft (1), and a one-way bearing is installed between the first synchronizing wheel (4) and the main shaft (1).

Technical Field

The invention relates to the technical field of transmission mechanisms, in particular to a mechanical transmission mechanism of a heart-lung endurance tester.

Background

A pulmonary function tester is a medical device used to measure the volume of air inhaled and exhaled by the lungs. The lung function test can be carried out and the lung health condition can be tracked, and common lung function detection parameters including FVC, FEV1, FEV1/FVC and the like can be measured.

At present, the transmission mechanism of a part of cardiopulmonary endurance tester: electromagnetic wheel and concatenation frame are two independent subassemblies, and the problem of this kind of mechanism is that weight is big, and the preparation is complicated, and is with high costs, and the installation is loaded down with trivial details, inconvenient maintenance, therefore we have proposed a cardiopulmonary endurance tester mechanical transmission mechanism and have been used for solving above-mentioned problem.

Disclosure of Invention

The invention aims to solve the problems of heavy weight, complex manufacturing, high cost, complex installation and inconvenient maintenance of the mechanism in the prior art, and provides a mechanical transmission mechanism of a heart-lung endurance tester.

In order to achieve the purpose, the invention adopts the following technical scheme:

a mechanical transmission mechanism of a heart-lung endurance tester comprises a bottom plate, wherein a housing is fixedly mounted at the top of the bottom plate, a support is fixedly mounted at the top of the bottom plate and is positioned in the housing, a main shaft is rotatably mounted on the support, one end of the main shaft extends to the outer side of the support, the main shaft is provided with a first synchronizing wheel, the other end of the main shaft extends to the outer side of the support, a driving synchronizing wheel is fixedly mounted on the main shaft, a driven shaft is rotatably mounted on the support, two sides of the driven shaft both extend to the outer side of the support, a second synchronizing wheel is fixedly mounted at one end of the driven shaft, a third synchronizing wheel is fixedly mounted at the other end of the driven shaft, the same first synchronizing belt is in transmission connection between the driving synchronizing wheel and the third synchronizing wheel, the same second synchronizing belt is in transmission connection between the first synchronizing wheel and the second synchronizing wheel, a copper disc is fixedly mounted at one side of the first synchronizing wheel, and a wire package is fixedly mounted on the support, the bracket is provided with an induction circuit board, the second synchronizing wheel is provided with a circular groove, and a circular magnet is fixedly arranged in the circular groove on the second synchronizing wheel;

rubber sheaths are arranged at four corners of the bottom plate, a first handlebar seat is fixedly arranged at the top of the bottom plate, a second handlebar seat is slidably arranged on the first handlebar seat, an elastic handle is arranged between the first handlebar seat and the second handlebar seat, a display is fixedly arranged at the top of the second handlebar seat, a handlebar is fixedly arranged on one side of the second handlebar seat, a first handlebar seat rod is fixedly arranged at the top of the bottom plate, a second handlebar seat rod is arranged on the first handlebar seat rod, a saddle is fixedly arranged at the top end of the second handlebar seat rod, a first groove is formed in the top of the first handlebar seat rod, the second vehicle seat rod is arranged in the first groove in a sliding manner, a plurality of adjusting grooves are arranged on one side of the second vehicle seat rod, a threaded hole is arranged on the inner wall of one side of the first groove, a screw rod is arranged in the threaded hole, and the screw rod is matched with the corresponding adjusting groove, and one end of the screw rod extends to the outer side of the first vehicle seat rod and is fixedly provided with a knob.

Preferably, a bearing sleeve is fixedly installed on the support, and a bearing is installed in the bearing sleeve.

Preferably, a first rotating hole is formed in the support, the spindle is rotatably connected with the first rotating hole, and the spindle can stably rotate through the rotating hole.

Preferably, the bracket is provided with a second rotating hole, the driven shaft is rotatably arranged in the second rotating hole, and the driven shaft can stably rotate due to the second rotating hole.

Preferably, the same cross beam is welded between the first handlebar seat and the first seat rod, and the stability of the vehicle can be improved through the cross beam.

Preferably, six inner hexagonal countersunk head screws of Mx5 are used on the driving synchronizing wheel, the inner hexagonal countersunk head screws are matched with the main shaft, and the driving synchronizing wheel is fixedly mounted on the main shaft through the six inner hexagonal countersunk head screws of Mx 5.

Preferably, a limiting block is welded at the upper end of the second seat rod.

Preferably, the number of the adjusting grooves is six to eight, and the six to eight adjusting grooves are arranged at equal intervals.

Preferably, a bearing is arranged between the driving synchronizing wheel and the main shaft, and a one-way bearing is arranged between the first synchronizing wheel and the main shaft.

In the invention, the mechanical transmission mechanism of the cardiopulmonary endurance tester is provided with the elastic handle, the second handlebar seat can be adjusted in height through the elastic handle, thereby being capable of adjusting the display and the handlebar, facilitating the people to look over the display and use the handlebar, when different people use the utility model, the height of the saddle needs to be adjusted, the knob can drive the screw rod to rotate by rotating the knob, under the action of the threaded hole, the screw rod can rotate and move at the same time, so that the screw rod is separated from the corresponding adjusting groove, the fixing of the saddle can be released, the height of the saddle can be adjusted, and after the saddle is adjusted to a proper position, the knob is rotated reversely, so that the screw rod can be clamped into the corresponding adjusting groove, the saddle can be stably fixed, and the saddle is convenient for different people to use;

a tester drives the synchronizing wheel to rotate along with the main shaft by pedaling, drives the third synchronizing wheel to rotate through the first synchronizing belt, the third synchronizing wheel can drive the second synchronizing wheel to rotate through the driven shaft, the second synchronizing wheel drives the first synchronizing wheel to rotate through the second synchronizing belt, the copper disc and the first synchronizing wheel are fixed together, so that the required rotating speed ratio of the driving synchronizing wheel and the copper disc can be calculated at the same speed according to the speed ratio of the driving synchronizing wheel to the third synchronizing wheel and the speed ratio of the second synchronizing wheel to the first synchronizing wheel, a one-way bearing is arranged in the first synchronizing wheel, a bearing is arranged in the driving synchronizing wheel, and the main shaft rotates clockwise or stops having no influence on the rotation of the copper disc.

When the closed conductor and the round magnet move relatively, electromagnetic resistance can be generated between the closed conductor and the round magnet to block the relative movement, namely the phenomenon of electromagnetic damping generally, when the induction circuit board receives a specified load, the voltage at two ends of the electromagnetic package is controlled, the copper disc starts to rotate under the drive of a tester, namely the electromagnetic field generated by cutting the electromagnetic package is started, at the moment, the induction disc can generate electromagnetic damping, namely the load required by people, and the load can be accurately controlled by controlling the voltage at two ends of the electromagnetic package.

The invention has reasonable design, light weight, optimized structure, integrated circuit, aluminum alloy material, convenient installation, low cost and high precision, selects the precise timing synchronous belt, and has higher transmission precision than the original mechanism chain and the common synchronous belt.

Drawings

FIG. 1 is a schematic structural diagram of a mechanical transmission mechanism of a cardiopulmonary endurance tester according to the present invention;

FIG. 2 is a schematic structural diagram of a transmission structure of a mechanical transmission mechanism of the cardiopulmonary endurance tester according to the present invention;

FIG. 3 is a schematic rear view of a transmission structure of a mechanical transmission mechanism of the cardiopulmonary endurance tester according to the present invention;

FIG. 4 is a schematic structural view of a part of a section a-a of a mechanical transmission mechanism of the cardiopulmonary endurance tester according to the present invention;

fig. 5 is a schematic structural diagram of a part a of a mechanical transmission mechanism of the cardiopulmonary endurance tester according to the present invention.

In the figure: 1. a main shaft; 2. a copper disc; 3. a coil; 4. a first synchronizing wheel; 5. a driven shaft; 6. a second synchronizing wheel; 7. a support; 8. an induction circuit board; 9. a round magnet; 10. a bearing support sleeve; 11. a third synchronizing wheel; 12. driving a synchronizing wheel; 13. a first synchronization belt; 14. a second synchronous belt; 15. a base plate; 16. a housing; 17. a rubber sheath; 18. a first handlebar seat; 19. a second handlebar seat; 20. the handle is loosened and loosened; 21. a display; 22. a handlebar; 23. a first seat post; 24. a second seat post; 25. a vehicle seat; 26. a first groove; 27. an adjustment groove; 28. a threaded hole; 29. a screw rod; 30. a knob.

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.

Referring to fig. 1-5, a mechanical transmission mechanism of a heart-lung resistance tester comprises a bottom plate 15, a housing 16 is fixedly installed at the top of the bottom plate 15, a support 7 is fixedly installed at the top of the bottom plate 15, the support 7 is located in the housing 16, a main shaft 1 is rotatably installed on the support 7, one end of the main shaft 1 extends to the outer side of the support 7, the main shaft 1 is provided with a first synchronous wheel 4, the other end of the main shaft 1 extends to the outer side of the support 7, the main shaft 1 is fixedly sleeved with a driving synchronous wheel 12, a driven shaft 5 is rotatably installed on the support 7, both sides of the driven shaft 5 extend to the outer side of the support 7, one end of the driven shaft 5 is fixedly sleeved with a second synchronous wheel 6, the other end of the driven shaft 5 is fixedly installed with a third synchronous wheel 11, a same first synchronous belt 13 is connected between the driving synchronous wheel 12 and the third synchronous wheel 11, a same second synchronous belt 14 is connected between the first synchronous wheel 4 and the second synchronous wheel 6, a copper disc 2 is fixedly arranged on one side of a first synchronizing wheel 4, a coil package 3 is fixedly arranged on a support 7, an induction circuit board 8 is arranged on the support 7, a circular groove is arranged on a second synchronizing wheel 6, and a circular magnet 9 is fixedly arranged in the circular groove on the second synchronizing wheel 6;

rubber sheaths 17 are installed at four corners of the bottom plate 15, a first handlebar seat 18 is fixedly installed at the top of the bottom plate 15, a second handlebar seat 19 is installed on the first handlebar seat 18 in a sliding mode, an elastic handle 20 is arranged between the first handlebar seat 18 and the second handlebar seat 19, a display 21 is fixedly installed at the top of the second handlebar seat 19, a handlebar 22 is fixedly installed at one side of the second handlebar seat 19, a first handlebar rod 23 is fixedly installed at the top of the bottom plate 15, a second handlebar rod 24 is arranged on the first handlebar rod 23, a saddle 25 is fixedly installed at the top end of the second handlebar rod 24, a first groove 26 is formed in the top of the first handlebar rod 23, the second handlebar rod 24 is installed in the first groove 26 in a sliding mode, a plurality of adjusting grooves 27 are formed in one side of the second handlebar rod 24, a threaded hole 28 is formed in the inner wall of one side of the first groove 26, a screw rod 29 is installed in the threaded hole 28, and the screw rod 29 is matched with the corresponding adjusting groove 27, one end of the screw 29 extends to the outside of the first seat lever 23 and is fixedly mounted with a knob 30.

In the invention, a bearing sleeve is fixedly arranged on the bracket 7, and a bearing is arranged in the bearing sleeve.

In the invention, the bracket 7 is provided with a first rotating hole, the main shaft 1 is rotatably connected with the first rotating hole, and the main shaft can stably rotate through the rotating hole.

In the invention, the bracket 7 is provided with a second rotating hole, the driven shaft is rotatably arranged in the second rotating hole, and the driven shaft 5 can stably rotate due to the second rotating hole.

In the invention, the same cross beam is welded between the first handlebar seat 18 and the first seat rod 23, so that the stability of the vehicle can be improved through the cross beam.

In the invention, six inner hexagonal countersunk head screws of M5x20 are used on the driving synchronizing wheel 12 and are matched with the main shaft 1, and the driving synchronizing wheel 12 is fixedly arranged on the main shaft 1 through the six inner hexagonal countersunk head screws of M5x 20.

In the present invention, a stopper is welded to the upper end of the second seat lever 24.

In the present invention, the number of the adjustment grooves 27 is six to eight, and six to eight adjustment grooves 27 are provided at equal intervals.

In the invention, a bearing is arranged between the driving synchronizing wheel 12 and the main shaft 1, and a one-way bearing is arranged between the first synchronizing wheel 4 and the main shaft 1.

In the invention, because the elastic handle 20 is arranged, the height of the second handle bar seat 19 can be adjusted through the elastic handle 20, thereby enabling adjustment of the display 21 and the handlebar 22, facilitating the viewing of the display 21 and the use of the handlebar 22 by a person, when different people use the utility model, the height of the saddle 25 needs to be adjusted, the knob 30 can drive the screw 29 to rotate by rotating the knob 30, the screw 29 can be moved while being rotated by the screw hole 28, so that the screw 29 is disengaged from the corresponding adjustment groove 27, the seat 25 can be released from the fixation, therefore, the height of the saddle 25 can be adjusted, and after the saddle is adjusted to a proper position, the knob 30 is rotated reversely, so that the screw rod 29 can be clamped into the corresponding adjusting groove 27, the saddle 25 can be stably fixed, and the saddle is convenient for different people to use;

a tester drives the synchronizing wheel 12 to rotate along with the main shaft 1 through foot treading, the third synchronizing wheel 11 is driven to rotate through the first synchronizing belt 13, the third synchronizing wheel 11 can drive the second synchronizing wheel 6 to rotate through the driven shaft 5, the second synchronizing wheel 6 drives the first synchronizing wheel 4 to rotate through the second synchronizing belt 14, the copper disc 2 and the first synchronizing wheel are fixed together, so that the speed is the same, the required rotating speed ratio of the driving synchronizing wheel 12 and the copper disc 2 can be calculated according to the speed ratio of the driving synchronizing wheel 12 to the third synchronizing wheel 11 and the speed ratio of the second synchronizing wheel 6 to the first synchronizing wheel 4, a one-way bearing is arranged in the first synchronizing wheel 4, a bearing is arranged in the driving synchronizing wheel 12, and therefore, the main shaft 1 rotates clockwise or stops having no influence on the rotation of the copper disc 2.

When the closed conductor and the round magnet 9 move relatively, electromagnetic resistance is generated between the closed conductor and the round magnet to block the relative movement, namely the phenomenon of electromagnetic damping generally, when the induction circuit board 8 receives a specified load, the voltage at two ends of the electromagnetic package is controlled, the copper disc 2 starts to rotate under the drive of a tester, namely the electromagnetic field generated by cutting the electromagnetic package is started, at the moment, the induction disc can generate electromagnetic damping, namely the load required by people, and the load can be accurately controlled by controlling the voltage at two ends of the electromagnetic package.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.