阅读说明：本技术 一种双通道旋转压管阀 (Double-channel rotary pipe pressing valve ) 是由 孙伟 黄海涛 旷兴龙 于 2021-09-10 设计创作，主要内容包括：一种双通道旋转压管阀,涉及医疗设备的技术领域。包括用于控制步进电机的控制主板,步进电机的上部设置用于将步进电机转矩放大的行星减速机,行星减速机的上部连接阀座模组,阀座模组内部设置有与行星减速机相连接的转子模组,阀座模组上部设置管座模组,管座模组上设置用于承载软管的卡槽,管座模组的上部设置管盖。本发明提供一种双通道旋转压管阀,通过步进电机+行星减速机的传动方式,驱动转子沿行星减速机转轴做旋转运动,由限位开关构成闭环反馈系统,对角度和位置进行精确控制,由内部的光学传感器来检测管路是否安装或者安装到位,来实现对两个管路的开合(通断)的控制。(A dual-channel rotary pipe pressing valve relates to the technical field of medical equipment. Including the control mainboard that is used for controlling step motor, step motor's upper portion sets up the planetary reducer who is used for enlargiing step motor torque, and the disk seat module is connected on planetary reducer's upper portion, and the inside rotor module that is connected with planetary reducer that is provided with of disk seat module sets up the tube socket module on disk seat module, sets up the draw-in groove that is used for bearing the weight of the hose on the tube socket module, and the upper portion of tube socket module sets up the tube cap. The invention provides a double-channel rotary pipe pressing valve, which drives a rotor to rotate along a rotating shaft of a planetary reducer in a transmission mode of a stepping motor and the planetary reducer, forms a closed loop feedback system by a limit switch, accurately controls the angle and the position, and detects whether a pipeline is installed or is installed in place by an internal optical sensor to realize the control of the opening and closing (on-off) of the two pipelines.)

1. The utility model provides a rotatory pressure pipe valve of binary channels, its characterized in that is including control mainboard (1) that is used for controlling step motor (2), the upper portion setting of step motor (2) is used for planetary reducer (3) with step motor (2) torque amplification, the upper portion of planetary reducer (3) sets up disk seat module (4) of installation tube socket module (5) and rotor module (7), set up the draw-in groove that is used for bearing the weight of the hose on tube socket module (5), rotor module (7) are connected with the pivot of planetary reducer (3), the upper portion of tube socket module (7) sets up tube cap (6).

2. The dual-channel rotary pipe pressing valve according to claim 1, wherein a magnetic induction encoder chip (11) is arranged on the upper end face of the control main board (1), a magnet fixing seat (22) is arranged at the tail of the motor of the stepping motor (2), a magnet (21) is fixedly installed in the magnet fixing seat (22), and the magnet (21) is aligned with the magnetic induction encoder chip (11).

3. The dual-channel rotary pipe pressing valve according to claim 2, wherein the planetary reducer (3) is in screw connection with the stepping motor (2), and the planetary reducer (3) amplifies the torque of the stepping motor (2) and simultaneously reduces the rotating speed; the torque of the stepping motor (2) is output through a planetary reducer rotating shaft (31) and a flat key (32).

4. The dual-channel rotary pipe pressing valve according to claim 3, wherein the valve seat module (4) comprises a connecting plate (41), a photoelectric sensor (42), a valve seat (43), a positioning pin (44) and a deep groove ball bearing (45), the connecting plate (41) is connected with the planetary reducer (3), the photoelectric sensor (42) is fixed on the connecting plate (41), and the valve seat (43) is connected with the connecting plate (41); a positioning pin (44) and a deep groove ball bearing (45) are fixed on the valve seat (43).

5. The dual-channel rotary pipe pressing valve according to claim 4, wherein the pipe seat module (5) comprises a pipe seat (51), polyurethane gaskets (52), LED indicator lamps (53) and optical sensors (54), clamping grooves for bearing hoses are arranged on the pipe seat (51), each clamping groove is provided with an optical sensor (54) for detecting whether the hose is installed or not, and the polyurethane gaskets (52) for compensating deviation generated in the manufacturing and assembling processes are arranged on the pipe seat (51) on one side of the clamping groove; an LED indicator lamp (53) for displaying the state of the rotary pressure pipe valve is arranged on the pipe seat (51).

6. The dual-channel rotary pipe pressing valve according to claim 5, wherein the rotor module (7) comprises a rotor (71), a roller (72), a bearing locking screw (73), a first miniature bearing (74), a second miniature bearing (74 a) and a shaft sleeve (75), a through hole (71A) is formed in the center of the rotor (71), the through hole (71A) is connected with the planetary reducer rotating shaft (31), and the torque output by the planetary reducer rotating shaft (31) is transmitted to the rotor (71) through a flat key (32), so that the rotor (71) rotates; the upper surface of the rotor (71) is provided with a threaded hole for fixing a bearing locking screw (73), and the edge of the threaded hole is provided with a circle of bulges for supporting the inner ring of the miniature bearing; bearing locking screw (73) top-down passes first miniature bearing (74), axle sleeve (75), gyro wheel (72), fixed to rotor (71) behind second miniature bearing (74 a) in proper order, and when bearing locking screw (73) were locked, the inner circle of acting on first miniature bearing (74) was transmitted to the inner circle of second miniature bearing (74 a) through axle sleeve (75), finally acted on the arch of rotor (71) to guarantee gyro wheel (72) and smoothly rotate round bearing locking screw (73).

7. The dual-channel rotary pipe pressing valve according to claim 6, wherein the rotor module (7) is mounted on the valve seat module (4) through a deep groove ball bearing (45), and the rotor module (7) is connected with the planetary reducer (3).

Technical Field

The invention relates to the technical field of medical equipment, in particular to the technical field of a pipe pressing valve matched with a hose.

Background

During the use of medical equipment, flexible tubes are usually used to cooperate with corresponding components such as pumps, valves, weighing devices, etc. to achieve the delivery, transfer and quantitative control of biological fluids (such as blood). The valve is used for controlling the on-off of the pipeline, and electromagnetic pinch valves, plug valves and the like are commonly used in the industry at present.

The electromagnetic pinch valve has the advantages that the structure is simple, the electromagnetic pinch valve is only suitable for a single channel, under the condition of double channels, the two channels are either simultaneously switched on or switched off, or are opposite in switching on and off and not flexible enough, and when the flexible control state is required to be achieved, 1 electromagnetic pinch valve can only control the switching on and off of 1 hose, so that a plurality of electromagnetic pinch valves have to be installed on medical equipment, and precious internal space is occupied; meanwhile, the electromagnetic pinch valve adopts a magnetic field generated by electrifying a coil to drive the valve core, and the coil is required to be continuously electrified during working, so that energy is consumed, and the power consumption of the whole machine is increased; meanwhile, the continuous energization of the coil generates a large amount of heat, which may cause the performance of the coil to be reduced and even damaged.

The plug valve has the advantages that the structure of the valve is simple, the volume is small, the matched consumable structure and the production process are relatively complex, and the cost is high for consumable materials used in large batch; meanwhile, the medical staff operating the plug valve equipment has higher requirements and needs certain training cost; more seriously, when the performance of the matched consumable is reduced or damaged due to quality control and misoperation, both the equipment and the operators cannot find the consumable in time, so that more serious results can be caused.

Whether the solenoid valve or the plug valve is adopted, the solenoid valve or the plug valve cannot detect whether the pipeline is installed or is installed in place, and clear feedback and prompt cannot be given to an operator.

Disclosure of Invention

The invention provides a double-channel rotary pipe pressing valve, which drives a rotor to rotate along a rotating shaft of a planetary reducer in a transmission mode of a stepping motor and the planetary reducer, forms a closed loop feedback system by a limit switch, accurately controls the angle and the position, and detects whether a pipeline is installed or is installed in place by an internal optical sensor to realize the control of the opening and closing (on-off) of the two pipelines.

The utility model provides a rotatory pressure pipe valve of binary channels, is including the control mainboard that is used for controlling step motor, and step motor's upper portion sets up the planetary reducer who is used for enlargiing step motor torque, and planetary reducer's upper portion sets up the disk seat module of fixed pipe seat subassembly and rotor module, sets up the draw-in groove that is used for bearing the hose on the pipe seat module, and planetary reducer pivot is connected to the rotor module, and the upper portion of pipe seat module sets up the tube cap.

Preferably, a magnetic induction encoder chip is arranged on the upper end face of the control main board, a magnet fixing seat is arranged at the tail of the stepping motor, a magnet is fixedly installed in the magnet fixing seat, and the magnet is aligned with the magnetic induction encoder chip.

Preferably, the planetary reducer is in screw connection with the stepping motor, and the planetary reducer amplifies the torque of the stepping motor and simultaneously reduces the rotating speed; the torque of the stepping motor is output through a rotating shaft and a flat key of the planetary reducer.

Preferably, the valve seat module comprises a connecting plate, a photoelectric sensor, a valve seat, a positioning pin and a deep groove ball bearing, wherein the connecting plate is connected with the planetary reducer, the photoelectric sensor is fixed on the connecting plate, and the valve seat is connected with the connecting plate; and a positioning pin and a deep groove ball bearing are fixed on the valve seat.

Preferably, the tube seat module comprises a tube seat, polyurethane gaskets, an LED indicator light and an optical sensor, wherein the tube seat is provided with clamping grooves for bearing the hoses, each clamping groove is provided with the optical sensor for detecting whether the hoses are installed, and the polyurethane gaskets for compensating the deviation generated in the manufacturing and assembling process are arranged on the tube seat positioned on one side of each clamping groove; the tube seat is provided with an LED indicator light for displaying the state of the rotary pressure tube valve.

Preferably, the rotor module comprises a rotor, a roller, a bearing locking screw, a first miniature bearing, a second miniature bearing and a shaft sleeve, wherein a through hole is formed in the center of the rotor and is connected with a rotating shaft of the planetary reducer, and the torque output by the rotating shaft of the planetary reducer is transmitted to the rotor through a flat key, so that the rotor rotates; the upper surface of the rotor is provided with a threaded hole for fixing a bearing locking screw, and the edge of the threaded hole is provided with a circle of bulges for supporting the inner ring of the miniature bearing; bearing locking screw top-down passes first miniature bearing, axle sleeve, gyro wheel, second miniature bearing after-fixing to the rotor in proper order, and when bearing locking screw locked, the effort was used in the inner circle of first miniature bearing, through the inner circle of axle sleeve transmission to second miniature bearing, finally is used in the arch of rotor to guarantee that the gyro wheel smoothly rotates round bearing locking screw.

Preferably, the rotor module is connected with the valve seat module and the planetary reducer through the deep groove ball bearing.

According to the two-way rotating pipe pressing valve, through the transmission structure of the stepping motor and the planetary reducer, the torque converted by the stepping motor through the planetary reducer is larger, and the turn-off state is more stable; when power failure and other unexpected conditions occur, the state can not be changed immediately because the reverse transmission of the speed reducer needs large torque, the on-off state can be kept continuously under the action of no external force, and the pipeline can be taken down conveniently under the action of the external force.

Compared with an electromagnetic pinch valve, the two-way rotary pinch valve is more stable, so that the phenomenon that a coil of the electromagnetic pinch valve is continuously electrified when the electromagnetic pinch valve works and the power consumption of the whole machine is increased due to energy consumption is avoided; meanwhile, the performance reduction and even damage of the coil caused by a large amount of heat generated when the coil is continuously electrified are avoided; further, when the electromagnetic pinch valve controls the opening and closing states of the two pipelines, the two pipelines are either opened and closed at the same time, the states are consistent, or the two pipelines are opened and closed at the same time, and the states are opposite. The rotary pressure valve of the invention is more flexible, 4 states corresponding to two pipelines can be realized, the on-off of any pipeline is not influenced by the other pipeline, and two independent electromagnetic pinch valves are needed when the electromagnetic pinch valves realize the same function.

Compared with a plug valve, the two-way rotary pressure pipe valve is more friendly to consumables, a rotary switch with leakage risk is not needed, the rotary pressure valve is similar to a pipe clamp principle commonly used in the market at present, the pipeline can be quickly connected and disconnected only by a transfusion pipe meeting the requirement, and the consumables have certain cost advantages due to simple structure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the structure with the header module and the cap removed.

Fig. 3 is a longitudinal sectional view of fig. 1.

Fig. 4 is a schematic structural diagram of the rotor module.

Fig. 5 is a top view of fig. 4.

Fig. 6 is a top view of the combination of fig. 1 without the hose positioned.

Fig. 7 is a top view of the hose in combination with fig. 1.

Fig. 8 is a schematic position diagram of the stepping motor driving the planetary reducer rotated clockwise by 60 degrees from the initial state.

Fig. 9 is a schematic position diagram of the stepping motor driving planetary reducer rotated 60 degrees counterclockwise from the initial state.

Fig. 10 is a schematic diagram of the position of the stepping motor driving planetary reducer rotated 120 degrees counterclockwise from the initial state.

Wherein: 1-a control main board, 2-a stepping motor, 3-a planetary reducer, 4-a valve seat module, 5-a pipe seat module, 6-a pipe cover, 7-a rotor module, 11-a magnetic induction encoder chip, 21-a magnet, 22-a magnet fixing seat, 31-a planetary reducer rotating shaft, 32-a flat key, 41-a connecting plate, 42-a photoelectric sensor, 43-a valve seat, 44 '-a positioning pin, 45-a deep groove ball bearing, 51-a pipe seat, 52' -a polyurethane gasket, 53 '-an LED indicator light, 54' -an optical sensor, 71-a rotor, 72a, 72b, 72 c-a roller, 73a, 73b, 73 c-a bearing locking screw, 74-a first micro bearing, 74 a-a second micro bearing, 74 ', 74a ' -micro-bearing, 75 ', 75 "-shaft sleeve, 71A-through hole.

Detailed Description

The technical scheme of the invention is described in detail in the following with reference to the attached drawings:

as shown in fig. 1, 2 and 3, the dual-channel rotary pipe pressing valve comprises a control main board 1 for controlling a stepping motor 2, a planetary reducer 3 for amplifying the torque of the stepping motor 2 is arranged on the upper portion of the stepping motor 2, a valve seat module 4 for mounting a pipe seat module and a rotor module is arranged on the upper portion of the planetary reducer 3, a clamping groove for bearing a hose is formed in the pipe seat module 5, the rotor module 7 is connected with a rotating shaft of the planetary reducer 3, and a pipe cover 6 is arranged on the upper portion of the pipe seat module 5.

The control main board 1 of the invention plays a role of controlling the stepping motor 2, the control main board 1 integrates functions of drive control, incremental coding, state feedback and the like, as shown in fig. 3, the control main board 1 is provided with a magnetic induction encoder chip 11 which is positioned in the center of the reverse side of the control main board 1; the tail part of the motor of the stepping motor 2 is fixedly provided with a magnet 21 through a magnet fixing seat 22, the magnet 21 is aligned with an encoder chip 11 on the control mainboard 1, and when the stepping motor 2 rotates, the control mainboard 1 can obtain the rotation increment of the stepping motor 2 through the encoder chip 11, so that the accurate control of the position is achieved; the control main board 1 is fixed at the tail part of the stepping motor 2.

As shown in fig. 1, 2 and 3, the planetary reducer 3 of the present invention is directly connected to the stepping motor 2 by a screw, and the planetary reducer 3 can amplify the torque of the stepping motor 2 and reduce the rotation speed; the torque is output through the planetary reducer rotating shaft 31 and the flat key 32.

As shown in fig. 1, 2, and 3, the valve seat module 4 of the present invention includes: a connecting plate 41, a photoelectric sensor 42, a valve seat 43, two positioning pins 44 and 44' and a deep groove ball bearing 45. The connecting plate 41 is directly connected with the planetary reducer 3, the photoelectric sensor 42 is fixed on the connecting plate 41, and the valve seat 43 is connected with the connecting plate 41; the valve seat 43 is fixed with positioning pins 44 and 44' and a deep groove ball bearing 45; the valve seat module 4 is connected with the planetary reducer 3.

As shown in fig. 1 and 3, the header module 5 of the present invention includes: a socket 51, polyurethane gaskets 52, 52 ', LED indicators 53, 53 ', and optical sensors 54, 54 '. The polyurethane gaskets 52 and 52' can compensate the deviation generated in the manufacturing and assembling process, so that the clearance between the rotary valve roller 72 and the pipe seat 51 can maintain a good blocking effect in a certain range, and the roller rotation resistance is not very large because the clearance is small; the LED indicators 53 and 53' can make the user know the state of the spin valve and correspond to the on-off states of the two pipes, respectively. As shown in connection with fig. 6-10; the optical sensors 54, 54' can detect whether the pipeline is installed or not, and can play a role in guiding and warning; the pipe seat module 5 is connected with the valve seat module 4.

As shown in fig. 1 to 5, the rotor module 7 of the present invention includes: a rotor 71, three rollers 72a, 72b, 72c, three bearing locking screws 73a, 73b, 73c, 6 micro-bearings, three bushings 75, 75', 75 ". The center of the rotor 71 is provided with a through hole 71A, the through hole 71A is connected with the planetary reducer rotating shaft 31, and the torque output by the planetary reducer rotating shaft 31 is transmitted to the rotor 71 through the flat key 32, so that the rotor 71 rotates; the upper surface of the rotor 71 is provided with a threaded hole for fixing a bearing locking screw 73, and the edge of the threaded hole is provided with a circle of small bulges which can support the inner ring of the miniature bearing 74; as shown in the right side of fig. 4, one of the bearing locking screws 73 sequentially passes through the first micro bearing 74, the shaft sleeve 75, the roller 72, and the second micro bearing 74a, and is then fixed to the rotor 71, and when the bearing locking screw 73 is locked, a force acts on the inner ring of the first micro bearing 74, and then is transmitted to the inner ring of the second micro bearing 74a through the shaft sleeve 75, and finally acts on the protrusion of the rotor 71, thereby ensuring that the roller 72 smoothly rotates around the bearing locking screw 73; the rotor module 7 is connected with the valve seat module 4 and the planetary reducer 3 through a deep groove ball bearing 45.

As shown in fig. 1 and 3, the cap 6 is directly connected to the socket module 5 for covering a part of the roller.

As shown in FIG. 1, the tube seat module 5 of the two-way rotary pipe pressing valve of the invention is provided with two clamping grooves 5A and 5A' for installing two pipelines which need to be controlled to be on and off. When the rotary pressure valve starts to be electrified, the stepping motor 2 starts to work, the rotor module 7 is driven to rotate along with the rotation through the deep groove ball bearing 45 connected with the valve seat module 4 and the planetary reducer 3, the photoelectric sensor 42 is triggered after the rotor module 7 rotates to a certain angle, at the moment, the rotary pressure valve stops moving and is located at an initial position, as shown in fig. 6, the clamping grooves 5A and 5A 'are in an opening state, an installer can easily install hoses on the clamping grooves 5A and 5A' of the valve, and as shown in fig. 7 after the installation is finished; when the hose is mounted inside the card slot, the LED indicator lights 53, 53 'stop flashing and turn off in response to the reflected signal detected by the optical sensors 54, 54'.

As shown in fig. 8, when the stepping motor 2 is controlled by the control main board 1, the stepping motor 2 drives the planetary reducer 3 to rotate 60 degrees clockwise from the initial state, the rotor module 7 also rotates, the rollers 72a, 72B and 72c rotate along with the rotor module 7, the roller 72B approaches the infusion tube a to gradually squeeze the infusion tube a, and since the squeezing position is changed all the time, as shown in fig. 5, the roller 72 can smoothly rotate around the bearing locking screw 73B, so the friction force between the roller 72B and the infusion tube a is very small, at this time, the infusion tube a is in the closed state, the liquid in the infusion tube cannot flow, the infusion tube B is in the open state, the first LED indicator 53 is turned on, and the second LED indicator 53' is turned off.

As shown in fig. 9, when the stepping motor 2 is controlled by the control main board 1, the stepping motor 2 drives the planetary reducer 3 to rotate 60 degrees counterclockwise from the initial state, the rotor module 7 also rotates, the rollers 72a, 72B and 72c rotate around the planetary reducer rotating shaft 31 along with the rotor module 7, the roller 72a approaches the infusion tube a to gradually squeeze the infusion tube a, the roller 72c approaches the infusion tube B to gradually squeeze the infusion tube B, at this time, the infusion tube a is in a closed state, the infusion tube B is in a closed state, the liquid in the hose cannot flow, the first LED indicator lamp 53 is turned on, and the second LED indicator lamp 53' is turned on.

As shown in fig. 10, when the stepping motor 2 is controlled by the control main board 1, the stepping motor 2 drives the planetary reducer 3 to rotate 120 degrees counterclockwise from an initial state, the rotor module 7 also rotates, the rollers 72a, 72B and 72c rotate around the planetary reducer rotating shaft (31) along with the rotor module 7, the roller (72B) approaches the infusion tube B and gradually extrudes the infusion tube B, at this time, the infusion tube a is in an open state, the infusion tube B is in a closed state, liquid in the infusion tube cannot flow, the first LED indicator lamp 53 is turned off, and the second LED indicator lamp 53' is turned on.

The invention relates to a bi-pass rotary pipe pressing valve, which drives a rotor to rotate along a rotating shaft of a planetary reducer in a transmission mode of a stepping motor and the planetary reducer, forms a closed loop feedback system by a limit switch, accurately controls the angle and the position, and detects whether a pipeline is installed or is installed in place by an internal optical sensor to realize the control of the opening and closing (on-off) of 2 pipelines.