CN217091798U

CN217091798U - Transmission and medical pump

Info

Publication number: CN217091798U
Application number: CN202123415923.8U
Authority: CN
Inventors: 周正超; 王少华; 魏波; 龙森
Original assignee: Minimally Invasive Surgery Medical Technology Shanghai Co ltd
Current assignee: Minimally Invasive Surgery Medical Technology Shanghai Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-02
Anticipated expiration: 2031-12-30

Abstract

The application provides a transmission device which is arranged in a pump machine and comprises a first driving mechanism, a second driving mechanism, a rotating mechanism, a first transmission mechanism and a second transmission mechanism, wherein the first driving mechanism is connected with the rotating mechanism through the first transmission mechanism, and the second driving mechanism is connected with the rotating mechanism through the second transmission mechanism; the first driving mechanism and the second driving mechanism are used for selectively driving the rotating mechanism to rotate, the first driving mechanism drives the rotating mechanism to rotate, the second driving mechanism keeps a closed or running state, and the second driving mechanism drives the rotating mechanism to rotate, and the first driving mechanism keeps a closed or running state. The present application further provides a medical pump. Two driving mechanisms are integrated, so that the time for replacing the pump is saved, the risk of rescue errors is reduced, and the overall weight of the pump is reduced; and the two driving mechanisms do not interfere with each other and run independently.

Description

Transmission and medical pump

Technical Field

The application relates to the technical field of mechanical equipment, in particular to a transmission device and a medical pump.

Background

Most of the existing medical pumps are centrifugal pumps, which generally comprise a pump and a pump head, and the centrifugal pumps drive the rotation of the pump head to realize blood flow. The existing centrifugal pump machines are classified into an electric pump machine used in a general situation and a hand pump machine used in a special situation. Under general sight, an electric pump machine can make the pump head realize continuous work, nevertheless under special sight, if outdoor long-time rescue, under the circumstances of unable timely power supply, then the pump machine needs to be changed into hand pump machine.

The existing electric pump machine does not have the function of manual driving power supply through hand cranking, and the hand-cranking pump machine does not have the electric function. And under the condition that the outdoor long-time rescue cannot be carried out in time, manual power supply is needed to ensure that the rescue is carried out smoothly. Need change the electric pump machine for hand pump machine this moment, this process needs extra configuration and carries hand pump machine, not only increases medical personnel's heavy burden and material management cost, and still need have the process of a manual dismantlement and installation pump machine, changes the time that the pump machine process was spent, is the time that the centrifugal pump stopped the pump blood promptly, can increase the risk of suing and labouring mistakes. And if do not change the electric pump machine for hand pump machine, directly connect the pump head with electric pump machine and hand pump machine simultaneously, then electric pump machine and hand pump machine can mutual interference, influence operation each other.

Accordingly, there is a need for a new transmission and medical pump that addresses the above-mentioned problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a transmission device and a medical pump, which are used for solving the technical problems that two driving mechanisms are integrated into a whole, can interfere with each other and influence the operation of each other in the prior art.

In order to achieve the above object, the present application provides a transmission device, which includes a first driving mechanism, a second driving mechanism, a rotating mechanism, a first transmission mechanism and a second transmission mechanism, wherein the first driving mechanism is connected to the rotating mechanism through the first transmission mechanism, and the second driving mechanism is connected to the rotating mechanism through the second transmission mechanism;

the first driving mechanism and the second driving mechanism are used for selectively driving the rotating mechanism to rotate, when the first driving mechanism drives the rotating mechanism to rotate, the second driving mechanism keeps a closing or running state, and when the second driving mechanism drives the rotating mechanism to rotate, the first driving mechanism keeps a closing or running state.

In some embodiments, the first transmission mechanism includes a rotating portion and a connecting portion, the rotating portion is connected to the first driving mechanism, the connecting portion is connected to the rotating mechanism, when the first driving mechanism drives the rotating mechanism to rotate, the rotating portion and the connecting portion are in a linkage state, and when the second driving mechanism drives the rotating mechanism to rotate, the rotating portion and the connecting portion are in an idle rotation state; the structure of the second transmission mechanism is the same as that of the first transmission mechanism, when the second driving mechanism drives the rotating mechanism to rotate, the rotating part in the second transmission mechanism and the connecting part in the second transmission mechanism are in a linkage state, and when the first driving mechanism drives the rotating mechanism to rotate, the rotating part in the second transmission mechanism and the connecting part in the second transmission mechanism are in an idle rotation state.

In some embodiments, the first driving mechanism includes an electric driving portion and a driving shaft, the electric driving portion is connected with the driving shaft, the electric driving portion is used for providing electric driving force, and the rotating portion in the first transmission mechanism is arranged on the driving shaft; the second driving mechanism comprises a speed changing assembly and an external force driving part, the speed changing assembly comprises a speed changer and a rotating shaft, the speed changer is respectively connected with the external force driving part and the rotating shaft, the external force driving part is used for providing manual driving force, and the rotating part in the second transmission mechanism is arranged on the rotating shaft.

In some embodiments, the transmission further comprises a power generation assembly in driving connection with the speed change assembly, the power generation assembly being configured to supply power to the electrical component.

In some embodiments, the power generation assembly includes a generator, a generator transmission portion, and a third transmission portion, the generator is connected with the generator transmission portion, the third transmission portion is connected with the rotating shaft, and the generator transmission portion is in transmission connection with the third transmission portion.

In some embodiments, the first transmission mechanism and the second transmission mechanism are both one-way bearings, the rotating portion is locked with the connecting portion in the linkage state, and the rotating portion slides relative to the connecting portion in the idling state.

In some embodiments, the rotating mechanism includes a first transmission portion, a second transmission portion, a main transmission portion and a rotating shaft, the main transmission portion is connected to the rotating shaft, and the main transmission portion is respectively connected to the first transmission portion and the second transmission portion in a transmission manner, the first transmission portion is connected to the first transmission mechanism, and the second transmission portion is connected to the second transmission mechanism.

In some embodiments, the drive connection is any one of a geared drive connection and a belt drive connection.

In some embodiments, the first driving mechanism and the second driving mechanism have the same structure, each of the first driving mechanism and the second driving mechanism includes an electric driving portion and a driving shaft, the electric driving portion is connected with the driving shaft, the electric driving portion is used for providing electric driving force, the rotating portion in the first transmission mechanism is arranged on the driving shaft in the first driving mechanism, and the rotating portion in the second transmission mechanism is arranged on the driving shaft in the second driving mechanism.

In some embodiments, the power generation assembly further comprises a fourth transmission part, and the fourth transmission part is respectively in transmission connection with the generator transmission part and the third transmission part.

In some embodiments, the generator transmission part comprises a generator pulley, the third transmission part comprises a third pulley, and any one of the generator transmission part and the third transmission part further comprises a belt or a toothed belt, and the generator pulley and the third pulley are in transmission connection through the belt or the toothed belt.

The application still provides one kind and contains transmission medical pump, medical pump includes pump head and pump machine, be equipped with in the base member of pump machine transmission, the pump head with slewing mechanism connects.

The main beneficial effects of the transmission device and the medical pump comprising the transmission device of the present application are that: the transmission device comprises a first driving mechanism, a second driving mechanism, a rotating mechanism, a first transmission mechanism and a second transmission mechanism, the first driving mechanism is connected with the rotating mechanism through the first transmission mechanism, the second driving mechanism is connected with the rotating mechanism through the second transmission mechanism, the first driving mechanism and the second driving mechanism are used for selectively driving the rotating mechanism to rotate, when the first driving mechanism drives the rotating mechanism to rotate, the second driving mechanism keeps a closed or running state, when the second driving mechanism drives the rotating mechanism to rotate, the first driving mechanism keeps a closed or running state, two driving mechanisms are integrated in the pump, so that the rotating mechanism can rotate under the driving of any one of the first driving mechanism and the second driving mechanism, the seamless switching of the driving mechanisms can be realized under emergency conditions, the pump machine does not need to be manually disassembled and assembled, the time for replacing the pump machine is saved, the risk of rescue errors is reduced, the two driving mechanisms are integrated into a whole, the arrangement of some repeated mechanisms is reduced, and the overall weight of the transmission device and the medical pump is reduced. The product structure of the existing medical centrifugal pump is optimized, and the cost is saved, so that the load and material management cost of medical workers in outdoor first aid is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a transmission according to an embodiment of the present application;

FIG. 2 is a cross-sectional schematic view of the transmission of FIG. 1 taken along line A-A1;

FIG. 3 is a schematic view of the transmission of FIG. 1 from another perspective;

FIG. 4 is a schematic view of the assembly of a first one-way bearing with a drive shaft and a first transfer gear of an embodiment of the present application;

FIG. 5 is a schematic view of the assembly of a second one-way bearing with a rotating shaft and a second transmission gear according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a medical pump according to an embodiment of the present application;

fig. 7 is a schematic view of a split structure of the medical pump shown in fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

In order to overcome the problems in the prior art, an embodiment of the present application provides a transmission device and a medical pump including the transmission device, where the transmission device includes a first driving mechanism, a second driving mechanism, a rotating mechanism, a first transmission mechanism and a second transmission mechanism, the first driving mechanism is connected to the rotating mechanism through the first transmission mechanism, and the second driving mechanism is connected to the rotating mechanism through the second transmission mechanism; the first driving mechanism and the second driving mechanism are used for selectively driving the rotating mechanism to rotate, when the first driving mechanism drives the rotating mechanism to rotate, the second driving mechanism keeps a closing or running state, and when the second driving mechanism drives the rotating mechanism to rotate, the first driving mechanism keeps a closing or running state. The transmission device integrates two driving mechanisms, so that the medical pump can run under the driving of any one driving mechanism, the time for replacing the driving mechanism is saved, the risk of rescue errors is reduced, the two driving mechanisms are integrated into a whole, the arrangement of some repeated mechanisms is reduced, the overall weight of the transmission device and the medical pump is reduced, and the load and material management cost of medical staff during outdoor first aid is reduced; and the two driving mechanisms are not interfered with each other, and independent operation is realized.

In some embodiments of the present application, when the first driving mechanism provides a driving force, the first driving mechanism drives the rotating portion of the first transmission mechanism to rotate, and at this time, the rotating portion of the first transmission mechanism and the connecting portion of the first transmission mechanism are in a linkage state, so that the connecting portion of the first transmission mechanism rotates along with the rotating portion of the first transmission mechanism, thereby driving the rotating mechanism connected to the rotating portion of the first transmission mechanism to rotate; the rotation mechanism rotates to drive the connecting part in the second transmission mechanism connected with the rotation mechanism to rotate, and at the moment, the rotating part in the second transmission mechanism and the connecting part in the second transmission mechanism are in an idle state, so that the rotating part in the second transmission mechanism cannot rotate along with the connecting part in the second transmission mechanism; namely, the first transmission mechanism can transmit the driving force of the first driving mechanism to the rotating mechanism, and the driving force transmitted to the rotating mechanism by the first driving mechanism cannot be transmitted to the second driving mechanism by the second transmission mechanism, at the moment, the second driving mechanism keeps a closed or running state, namely, the first transmission mechanism carries out unidirectional power transmission, so that when the first transmission mechanism drives the rotating mechanism to rotate, the running and opening and closing of the second driving mechanism are not influenced by interference.

In other specific embodiments of the present application, when the second driving mechanism provides a driving force, the second driving mechanism drives the rotating portion of the second transmission mechanism to rotate, and at this time, the rotating portion of the second transmission mechanism and the connecting portion of the second transmission mechanism are in a linkage state, so that the connecting portion of the second transmission mechanism rotates along with the rotating portion of the second transmission mechanism, and the rotating mechanism connected to the rotating portion of the second transmission mechanism is driven to rotate; the rotation of the rotating mechanism can drive the connecting part in the first transmission mechanism connected with the rotating mechanism to rotate, and at the moment, the rotating part in the first transmission mechanism and the connecting part in the first transmission mechanism are in an idle running state, so that the rotating part in the first transmission mechanism cannot rotate along with the connecting part in the first transmission mechanism; namely, the second transmission mechanism can transmit the driving force of the second driving mechanism to the rotating mechanism, and the driving force transmitted to the rotating mechanism by the second driving mechanism cannot be transmitted to the first driving mechanism by the first transmission mechanism, at the moment, the first driving mechanism keeps a closed or running state, namely, the second transmission mechanism carries out unidirectional power transmission, so that when the second transmission mechanism drives the rotating mechanism to rotate, the running and opening and closing of the first driving mechanism are not influenced by interference.

In some embodiments of the present application, the direction in which the first driving mechanism drives the rotation shaft to rotate is the same as the direction in which the second driving mechanism drives the rotation shaft to rotate.

Specifically, embodiments of the present application will be described below with reference to respective schematic diagrams. FIG. 1 is a schematic structural diagram of a transmission according to an embodiment of the present application; FIG. 2 is a schematic cross-sectional view of the transmission of FIG. 1 taken along line A-A1; fig. 3 is a schematic view of the transmission shown in fig. 1 from another perspective.

In some possible embodiments of the present application, the transmission connection is a gear transmission connection, referring to fig. 1, fig. 2 and fig. 3, the first transmission portion includes a first transmission gear 111, the second transmission portion includes a second transmission gear 113, the main transmission portion includes a main transmission gear 112, and the main transmission gear 112 is engaged with the first transmission gear 111 and the second transmission gear 113 respectively to realize the gear transmission connection. That is, the rotating mechanism (not shown) includes a first transmission gear 111, a main transmission gear 112, a second transmission gear 113 and a rotating shaft 114, the main transmission gear 112 is sleeved on the rotating shaft 114, the rotating mechanism has a simple structure and few parts, the overall weight of the transmission device is reduced, the assembly is convenient, and the investment cost is reduced.

In some possible embodiments of the present application, the electric driving part is a motor. The specific structure and performance of the motor are conventional in the art and are not described in detail herein.

In some possible embodiments of the present application, the external force driving part includes at least one of a manual driving part and a pedal driving part. Specifically, the external force driving part comprises at least one of a hand grip and a foot driver.

In some embodiments of the present application, the first transmission mechanism is a first one-way bearing, the second transmission mechanism is a second one-way bearing, a direction of the transmission driving force of the first one-way bearing is from the first driving mechanism to the rotation mechanism, and a direction of the transmission driving force of the second one-way bearing is from the second driving mechanism to the rotation mechanism. The one-way bearing is a bearing which can only rotate in one direction, namely, the one-way bearing can freely rotate or idle in one direction, and is locked in the other direction to realize torque transmission. The one-way bearing is also called as an overrunning clutch, and is named according to different industries and different functions. The metal shell of the one-way bearing comprises a plurality of rolling shafts, rolling needles or rolling balls, and the rolling seats or rolling cavities of the one-way bearing are shaped to roll only in one direction and generate great resistance in the other direction, namely the one-way bearing is called. The one-way bearing is simple in structure, few in parts, convenient to assemble and low in input cost, and the whole weight of the transmission device is reduced.

In some embodiments of the present application, referring to fig. 1, 2 and 3, the first driving mechanism (not shown) includes the motor 121 and a driving shaft 122 connected to the motor 121. The first one-way bearing 131 is sleeved on the driving shaft 122, the first transmission gear 111 is sleeved outside the first one-way bearing 131, and the first one-way bearing 131 is connected with the first transmission gear 111 in a matching manner. The second driving mechanism (not shown) includes a speed changing assembly (not shown) and an external force driving part (not shown), the speed changing assembly (not shown) includes a transmission 141 and a rotating shaft 142 connected to the transmission 141, and the transmission 141 is connected to the external force driving part (not shown). The second one-way bearing 151 is sleeved on the rotating shaft 142, the second transmission gear 113 is sleeved outside the second one-way bearing 151, and the second one-way bearing 151 is connected with the second transmission gear 113 in a matching manner.

FIG. 4 is a schematic view of the assembly of a first one-way bearing with a drive shaft and a first transfer gear of an embodiment of the present application; fig. 5 is a schematic view of the assembly of the second one-way bearing with the rotating shaft and the second transmission gear according to the embodiment of the present application.

In some embodiments of the present application, the one-way bearing is an annular structure, the rotating portion is an inner ring, the connecting portion is an outer ring, and the inner ring and the outer ring are coaxially connected. Referring to fig. 2, 4 and 5, the first one-way bearing 131 includes a first inner ring 1311 and a first outer ring 1312, the first inner ring 1311 is coupled to the driving shaft 122, and the first outer ring 1312 is coupled to the first transmission gear 111 in a fitting manner. The second one-way bearing 151 includes a second inner ring 1511 and a second outer ring 1512, the second inner ring 1511 is connected to the rotating shaft 142, and the second outer ring 1512 is connected to the second transmission gear 113 in a matching manner.

Specifically, with reference to fig. 1-5, the transmission described herein can achieve the following two operational scenarios.

The working scenario one is as follows: when the motor 121 operates, the driving shaft 122 rotates clockwise, the driving shaft 122 drives the first one-way bearing 131 to rotate, at this time, the first inner ring 1311 and the first outer ring 1312 in the first one-way bearing 131 are locked to realize linkage, so that when the driving shaft 122 rotates clockwise, the first inner ring 1311 and the first outer ring 1312 rotate clockwise in linkage together to transmit the torque of the driving shaft 122 to the first transmission gear 111, that is, at this time, the motor 121 drives the first transmission gear 111 to rotate through the first one-way bearing 131, so that the first one-way bearing 131 can drive the first transmission gear 111 to rotate clockwise. Then, the first transmission gear 111 transmits power to the main transmission gear 112 engaged with the first transmission gear 111, and the main transmission gear 112 drives the rotating shaft 114 to rotate counterclockwise together to output torque. Meanwhile, the main transmission gear 112 transmits power to the second transmission gear 113 engaged with the main transmission gear 112, so that the second transmission gear 113 rotates clockwise. At this time, the second inner ring 1511 and the second outer ring 1512 in the second one-way bearing 151 between the second transmission gear 113 and the rotating shaft 142 slide relatively, that is, the second transmission gear 113 drives the second outer ring 1512 to rotate, but the second outer ring 1512 and the second inner ring 1511 idle and do not transmit power to the rotating shaft 142, so that the rotating shaft 142 of the transmission 141 does not rotate. This can achieve the effect that the motor 121 does not interfere with the operation of the transmission 141 when operating.

The working scene two: when a user uses the external force driving part to provide manual driving force, the external force driving part inputs torque to the transmission 141, so that the rotating shaft 142 of the transmission 141 rotates clockwise, the rotating shaft 142 drives the second one-way bearing 151 to rotate, at this time, the second inner ring 1511 and the second outer ring 1512 in the second one-way bearing 151 are locked to realize linkage, so that when the rotating shaft 142 rotates clockwise, the second inner ring 1511 and the second outer ring 1512 rotate clockwise together, so as to transmit the torque of the rotating shaft 142 to the second transmission gear 113, that is, at this time, the transmission 141 drives the second transmission gear 113 to rotate through the second one-way bearing 151, so that the second one-way bearing 151 can drive the second transmission gear 113 to rotate clockwise. Then, the second transmission gear 113 transmits power to the main transmission gear 112 engaged with the second transmission gear 113, and the main transmission gear 112 drives the rotating shaft 114 to rotate counterclockwise together so as to output torque. Meanwhile, the main transmission gear 112 transmits power to the first transmission gear 111 engaged with the main transmission gear 112, so that the first transmission gear 111 rotates clockwise. At this time, the first inner ring 1311 and the first outer ring 1312 in the first one-way bearing 131 between the first transmission gear 111 and the driving shaft 122 slide relatively, that is, the first transmission gear 111 drives the first outer ring 1312 to rotate, but the first inner ring 1311 and the first outer ring 1312 idle and do not transmit power to the driving shaft 122, so that the driving shaft 122 of the motor 121 does not rotate. This can achieve the effect that the transmission 141 operates without interfering with the operation of the motor 121.

By means of the mutual matching of the first transmission gear 111, the main transmission gear 112, the second transmission gear 113, the first one-way bearing 131 and the second one-way bearing 151, when the motor 121 provides an electric driving force, the driving shaft 122 sequentially drives the first one-way bearing 131, the first transmission gear 111, the main transmission gear 112 and the second transmission gear 113 to rotate, and because the second one-way bearing 151 is in one-way transmission, the electric driving force provided by the motor 121 is not transmitted to the transmission 141; when the external force driving part (not shown) provides an artificial driving force to operate the transmission 141, the rotating shaft 142 sequentially drives the second one-way bearing 151, the second transmission gear 113, the main transmission gear 112, and the first transmission gear 111 to rotate, and the first one-way bearing 131 is in one-way transmission, so that the artificial driving force provided by the external force driving part (not shown) is not transmitted to the motor 121. That is, the motor 121, the external force driving part (not shown in the figure) and the transmission 141 are combined in the same pump, but when the motor 121 drives the main transmission gear 112 to rotate, the on-off and movement states of the transmission 141 are not disturbed; when the external force driving part (not shown in the figure) and the transmission 141 are matched to drive the main transmission gear 112 to rotate, the opening and closing and the movement states of the motor 121 are not interfered, the two driving mechanisms realize independent operation, and a user can freely select and start any one of the motor 121 and the external force driving part (not shown in the figure) according to needs to drive the main transmission gear 112 to rotate. And electric drive mechanism and artifical actuating mechanism are integrated in an organic whole, the product mode has been optimized, can regard as reserve driving source with artifical drive function integration on electric pump machine, long-time outdoor rescue, under the condition of unable timely power supply, can be fast convenient switch the manual drive with the electric drive, realize actuating mechanism's seamless switching, need not manual dismantlement and installation pump machine, the time of changing the pump machine has been saved, the risk of making mistakes of rescue is reduced, and the setting of some repetitive mechanism has been reduced, the holistic specification size of pump machine can remain unchanged basically, and alleviateed the whole weight of pump machine, thereby heavy burden and the material management cost when having reduced medical personnel's outdoor first aid, the inconvenient defect when carrying and changing two kinds of pump machines simultaneously under emergency has been solved, the risk that medical personnel makeed mistakes when changing the pump machine has been reduced.

In the above scenario, the driving rotating shaft 114 rotates around the counterclockwise direction is taken as an example for description, in other embodiments, the driving rotating shaft 114 may also rotate around the clockwise direction for setting, and the specific setting manner may be modified adaptively by performing the adaptation on the rotating direction of the above scenario, and is not described herein again.

In other possible embodiments of this application, the transmission is connected for belt drive, first transmission portion includes first transmission belt pulley, second transmission portion includes second transmission belt pulley, main drive portion includes main drive belt pulley, just first transmission portion second transmission portion with any one in the main drive portion still includes belt or toothed belt, main drive gear first transmission gear with second transmission gear passes through the belt or toothed belt connects to realize belt drive and connect.

In some embodiments of the present application, referring to fig. 1, 2 and 3, the motor 121 and the transmission 141 are defined by a portion of the base 11 and fixedly disposed within the base 11 by a mounting screw 101. Specifically, the base 11 is a mounting housing.

In some embodiments of the present application, referring to fig. 1, 2 and 3, a bottom end surface and a top end surface of the first transmission gear 111 are respectively provided with a first gasket 1111 and a first blocking piece 1112, so as to limit the first transmission gear 111 up and down. The top end face and the bottom end face of the second transmission gear 113 are both provided with a second gasket 1131 and a first clamp spring 1132, so that the second transmission gear 113 is limited up and down. The rotating shaft 114 is connected with the ball bearing 1121 and disposed in the base 11 to ensure coaxiality and smooth rotation. A third gasket 1122 and a second clamp spring 1123 are arranged on the top end face of the main transmission gear 112 so as to limit the upper part of the main transmission gear 112; the bottom end of the main transmission gear 112 is abutted against the shoulder of the rotating shaft 114 to limit the lower part of the main transmission gear 112.

In some possible embodiments of the present application, the first shim 1111, the second shim 1131 and the third shim 1122 are low-coefficient of friction wear-resistant shims.

In other possible embodiments of the present application, the first shim 1111, the second shim 1131 and the third shim 1122 may be replaced with end bearings to increase wear resistance and reduce friction.

In some embodiments of the present application, the transmission device further includes a power generation assembly, the power generation assembly is in transmission connection with the speed change assembly, and the power generation assembly is used for supplying power to an electric component. The speed change assembly can be driven to rotate by the external force driving part after power failure, and at the moment, the speed change assembly transmits driving force to the power generation assembly, so that the power generation assembly runs to generate power, power supply for power utilization parts is achieved through manual driving force, and basic running of the power supply parts is guaranteed.

Specifically, among the first actuating mechanism the electric drive portion power supply is not enough or can not the during operation, directly will among the second actuating mechanism the external force drive portion takes out to install on the derailleur, through hand drive portion or pedal drive portion drive the derailleur operation makes the rotation axis rotates, thereby drives slewing mechanism rotates, and makes the electricity generation subassembly operation electricity generation. After the power supply of the electric driving part is recovered, the electric driving part drives the rotating mechanism to rotate quickly, and the rotating mechanism rotates along with the driving part rotating quickly, so that the rotating mechanism rotates under the driving of the electric driving part; at the moment, the transmission continues to operate under the hand-operated driving part or the foot-operated driving part, so that the rotating shaft is driven to rotate, the power generation assembly is driven to generate power in operation, the power generation assembly is driven to generate power only in operation due to rotation of the rotating shaft, the power generation assembly is more labor-saving relatively, at the moment, the first driving mechanism drives the rotating mechanism to rotate, and the second driving mechanism keeps a closed state. At this time, the hand-cranking driving part or the foot-stepping driving part can be detached to stop driving the transmission to operate, that is, the operation of the first driving mechanism does not affect the closing or effective state of the second driving mechanism.

In some embodiments of the present application, the power consuming component includes an indicator light or the like.

In some embodiments of the present application, the transmission device is disposed in the pump, and the indicator includes at least one of an indicator indicating whether the pump is operating, an indicator indicating whether the rotating shaft is rotating, and an indicator indicating a rotation speed of the pump.

In some embodiments of the present application, the transmission connection between the power generation assembly and the speed change assembly includes any one of a gear transmission connection and a belt transmission connection.

In some embodiments of the present application, the power generation assembly includes a power generator, a power generator transmission portion and a third transmission portion, the power generator is connected to the power generator transmission portion, the third transmission portion is connected to the rotating shaft, and the power generator transmission portion is in transmission connection with the third transmission portion.

In some possible embodiments of the present application, the generator is a micro-motor. The micro motor has small volume and capacity, and the output power is generally below hundreds of watts.

In some embodiments of the present application, the generator includes any one of a dc motor, an ac motor, a self-attitude angle motor, a stepping motor, a resolver, an axial angle encoder, an ac/dc motor, a tachogenerator, an induction synchronizer, a linear motor, a piezoelectric motor, a motor unit, and other special motors.

In some embodiments of the present application, the power generation assembly further includes a fourth transmission portion, and the fourth transmission portion is in transmission connection with the generator transmission portion and the third transmission portion, respectively. The two-stage transmission is realized, the installation space is reduced, and the interference to the operation of other parts can be effectively avoided.

In some specific embodiments of the present application, the power generation assembly is in gear transmission connection with the speed change assembly, that is, the generator transmission portion includes a generator transmission gear, the third transmission portion includes a third transmission gear, and the fourth transmission portion includes a fourth transmission gear and a transmission shaft. Referring to fig. 1, 2 and 3, the generator transmission gear 161 is sleeved on the output shaft 163 of the generator 162, the third transmission gear 164 is sleeved on the rotating shaft 142, and the fourth transmission gear 165 is sleeved on the transmission shaft 166. The generator 162 and the transmission shaft 166 are fixedly disposed on the base 11. The fourth transmission gear 165 is engaged with the generator transmission gear 161 and the third transmission gear 164, respectively. The third transmission gear 164 and the second transmission gear 113 are coaxially disposed, such that when the external force driving part (not shown) drives the transmission 141 to move so as to drive the rotating shaft 142 to rotate, the third transmission gear 164 and the second transmission gear 113 rotate along with the rotating shaft 142, so as to respectively transmit manual driving force to the rotating shaft 114 and the output shaft 163, so as to respectively drive the rotating shaft 114 to rotate and drive the generator 162 to operate.

Specifically, referring to fig. 3, the bottom end surface and the top end surface of the fourth transmission gear 165 are provided with a third snap spring 1651.

In other embodiments of this application, the generator transmission portion includes the generator belt pulley, the third transmission portion includes the third belt pulley, the generator transmission portion with any one in the third transmission portion still includes belt or toothed belt, the generator belt pulley with the third belt pulley passes through the belt or toothed belt transmission connects. The installation space is reduced.

In other embodiments of the present application, the first driving mechanism and the second driving mechanism have the same structure, and each of the first driving mechanism and the second driving mechanism includes an electric driving portion and a driving shaft, the electric driving portion is connected to the driving shaft, the electric driving portion is used for providing an electric driving force, the rotating portion of the first transmission mechanism is disposed on the driving shaft of the first driving mechanism, and the rotating portion of the second transmission mechanism is disposed on the driving shaft of the second driving mechanism. Any one of the first driving mechanism and the second driving mechanism can be used as a standby driving mechanism, so that after one of the driving mechanisms is damaged, the rotating mechanism can be driven to rotate by the other driving mechanism.

In some possible embodiments of the present application, the transmission further includes a switching mechanism, and the switching mechanism is configured to switch on and off of the first driving mechanism and the second driving mechanism.

In some embodiments of the present application, the transmission device is disposed in the pump, and the rotating shaft is used for connecting the pump head.

FIG. 6 is a schematic structural view of a medical pump according to an embodiment of the present application; fig. 7 is a schematic view of a split structure of the medical pump shown in fig. 6.

In some embodiments of the present application, referring to fig. 6 and 7, the medical pump including the transmission device in the above embodiments includes a pump head 20 and a pump 10, the transmission device (not shown) is disposed in a base 11 of the pump 10, and the pump head 20 is connected to the rotating mechanism (not shown).

In some embodiments of the present application, referring to fig. 6 and 7, the pump 10 includes a base 11, a pump head mounting cover 12 and a bottom cover 13, the pump head mounting cover 12, the base 11 and the bottom cover 13 are sequentially connected and fixed from top to bottom, and the pump head 20 is fixedly disposed on the top of the pump head mounting cover 12. The rotating mechanism (not shown) is fixedly disposed on the base 11, the rotating shaft 114 of the rotating mechanism (not shown) penetrates through the pump head mounting cover 12, and the rotating shaft 114 is connected to the pump head 20, such that any one of the first driving mechanism (not shown) and the second driving mechanism (not shown) drives the rotating shaft 114 to rotate, so as to drive an upper magnet (not shown) to drive the pump head 20 to operate.

Although the embodiments of the present application have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present application as set forth in the claims. Moreover, the subject application described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims

1. A transmission device is characterized by comprising a first driving mechanism, a second driving mechanism, a rotating mechanism, a first transmission mechanism and a second transmission mechanism, wherein the first driving mechanism is connected with the rotating mechanism through the first transmission mechanism, and the second driving mechanism is connected with the rotating mechanism through the second transmission mechanism;

2. The transmission device according to claim 1, wherein the first transmission mechanism includes a rotating portion and a connecting portion, the rotating portion is connected to the first driving mechanism, the connecting portion is connected to the rotating mechanism, the rotating portion and the connecting portion are in a linkage state when the first driving mechanism drives the rotating mechanism to rotate, and the rotating portion and the connecting portion are in an idle state when the second driving mechanism drives the rotating mechanism to rotate;

the structure of the second transmission mechanism is the same as that of the first transmission mechanism, when the second driving mechanism drives the rotating mechanism to rotate, the rotating part in the second transmission mechanism and the connecting part in the second transmission mechanism are in a linkage state, and when the first driving mechanism drives the rotating mechanism to rotate, the rotating part in the second transmission mechanism and the connecting part in the second transmission mechanism are in an idle rotation state.

3. The transmission device according to claim 2, wherein the first drive mechanism includes an electric drive portion and a drive shaft, the electric drive portion being connected to the drive shaft, the electric drive portion being configured to provide an electric drive force, the rotation portion of the first transmission mechanism being provided to the drive shaft; the second driving mechanism comprises a speed changing assembly and an external force driving part, the speed changing assembly comprises a speed changer and a rotating shaft, the speed changer is respectively connected with the external force driving part and the rotating shaft, the external force driving part is used for providing manual driving force, and the rotating part in the second transmission mechanism is arranged on the rotating shaft.

4. The transmission of claim 3, further comprising a power generation assembly in driving connection with the speed change assembly, the power generation assembly being configured to provide power to an electrical component.

5. The transmission of claim 4, wherein the power generation assembly includes a generator, a generator transmission portion and a third transmission portion, the generator is connected with the generator transmission portion, the third transmission portion is connected with the rotating shaft, and the generator transmission portion is connected with the third transmission portion in a transmission manner.

6. The transmission according to claim 2, wherein the first transmission mechanism and the second transmission mechanism are both one-way bearings, the rotating portion is locked with the connecting portion in the linked state, and the rotating portion slides relative to the connecting portion in the idling state.

7. The transmission device according to claim 2, wherein the rotating mechanism includes a first transmission portion, a second transmission portion, a main transmission portion and a rotating shaft, the main transmission portion is connected with the rotating shaft, and the main transmission portion is respectively in transmission connection with the first transmission portion and the second transmission portion, the first transmission portion is connected with the first transmission mechanism, and the second transmission portion is connected with the second transmission mechanism.

8. The transmission of claim 7, wherein the drive connection is any one of a geared drive connection and a belt drive connection.

9. The transmission according to claim 2, characterized in that the first drive mechanism and the second drive mechanism are identical in structure, and each of the first drive mechanism and the second drive mechanism comprises an electric drive portion and a drive shaft, the electric drive portion being connected with the drive shaft, the electric drive portion being configured to provide an electric drive force, the rotating portion in the first transmission mechanism being provided to the drive shaft in the first drive mechanism, and the rotating portion in the second transmission mechanism being provided to the drive shaft in the second drive mechanism.

10. The transmission of claim 5, wherein the power generation assembly further comprises a fourth transmission portion in transmission connection with the generator transmission portion and the third transmission portion, respectively.

11. The transmission of claim 5, wherein the generator transmission portion comprises a generator pulley, the third transmission portion comprises a third pulley, and either of the generator transmission portion and the third transmission portion further comprises a belt or a toothed belt, the generator pulley and the third pulley being in driving connection via the belt or the toothed belt.

12. A medical pump comprising a gearing arrangement according to any of claims 1-11, comprising a pump head and a pump, said gearing arrangement being provided in a base body of said pump, said pump head being connected to said rotating means.