Rotary type flexible pipe flow stopping system, flow stopping valve and blood purification equipment

Abstract

The utility model discloses a rotary type flexible pipe flow stopping system, a flow stopping valve and blood purification equipment, relates to the technical field of medical instruments, and solves the problem that the existing blood purification equipment needs a complicated and large-size mechanical structure for controlling the circulation of liquid in a flexible pipe or cannot respond to the equipment requirement in time during manual control. The system comprises a clamping assembly and a flow stopping assembly. The clamping assembly is at least provided with a groove, and a pipeline for the flexible pipe to penetrate through is arranged in each groove; one end of the flow stopping assembly is embedded into the clamping assembly and connected with the clamping assembly, and the flow stopping assembly is used for abutting against or loosening the flexible pipe after rotating. Through the synergistic effect of the clamping assembly and the flow stopping assembly, the pipeline is designed in the groove, and one end of the flow stopping assembly is embedded into the clamping assembly, so that the problems of complex structure and overlarge size of the flexible pipe are avoided while the circulation of liquid in the flexible pipe can be automatically controlled, the number of assemblies required for realizing the control of the liquid in the flexible pipe is reduced, and the production cost is reduced. And the whole body is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a rotary flexible pipe flow stopping system, flow stopping valve and blood purification equipment. BACKGROUND

[0002] Blood purification equipment has extensive application in real life, especially in the medical field, is mainly used for processing those who have renal failure, liver failure and other blood purification treatment disease conditions of patient.

[0003] In the existing blood purification equipment, generally through clamping or releasing flexible pipe to control the on-off of fluid. But in the equipment clamping and releasing flexible pipe mostly depend on complex mechanical structure or operator directly with pipe line buckle to clamp flexible pipe to prevent liquid flow. Although the above two methods can realize closing and releasing liquid flow in flexible pipe, but complex mechanical structure will increase the complexity of equipment assembly and maintenance cost, and complex mechanical structure also leads to the increase of equipment volume, increases the system failure rate and maintenance cost, and the operator manually controls closing or releasing cannot respond to the demand of blood purification equipment in time. Therefore, now urgently needed is a simple structure and can quickly respond to the equipment closing or releasing liquid in flexible pipe. SUMMARY

[0004] The utility model discloses a rotary flexible pipe flow stopping system, flow stopping valve and blood purification equipment, solve the realization of the need of the existing blood evolution equipment control flexible pipe liquid flow to be complex and bulky mechanical structure or manual control when cannot respond to the equipment demand problem in time.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a rotary flexible pipe flow stopping system, the system includes clamping assembly and flow stopping assembly;

[0007] The clamping assembly is provided with at least one groove, and a pipe is arranged in each groove for the flexible pipe to pass through;

[0008] One end of the flow stopping assembly is embedded in the clamping assembly and connected with the clamping assembly, and the flow stopping assembly is used to abut against or loosen the flexible pipe after rotating.

[0009] Preferably, the system further comprises a detection assembly for detecting whether the flow stopping assembly abuts against or loosens the flexible pipe.

[0010] Preferably, the clamping assembly is provided with a passage.

[0011] The flow-stopping assembly comprises a rotating connecting piece and a pressing piece, one end of the rotating connecting piece is embedded in the channel, and the other end is fixedly connected with the pressing piece, the rotating connecting piece is used to rotate in the channel to drive the pressing piece to rotate into the recess and abut against the flexible pipe.

[0012] Preferably, the clamping assembly comprises a clamping seat, and a first clamping piece and a second clamping piece arranged at the top end of the clamping seat, and the recess is arranged between the first clamping piece and the second clamping piece.

[0013] The pressing piece rotates between the first clamping piece and the second clamping piece.

[0014] Preferably, the system further comprises a rotating shaft.

[0015] One end of the rotating shaft penetrates from the bottom of the clamping seat and is connected with the rotating connecting piece, and is used to drive the rotating connecting piece to rotate.

[0016] Preferably, the detection assembly comprises a circular detection piece and a photoelectric sensing part, the photoelectric sensing part comprises a light-emitting piece and a light-receiving piece, and a light path is arranged between the light-emitting piece and the light-receiving piece.

[0017] The circular detection piece is fixedly sleeved on the rotating shaft, and the edge of the circular detection piece penetrates through the light path, the edge of the circular detection piece is provided with a light channel, and the light channel is used for the light emitted by the light-emitting piece to pass through.

[0018] Preferably, when the clamping assembly is provided with two recesses, the clamping assembly further comprises a third clamping piece and a fourth clamping piece.

[0019] The first clamping piece and the second clamping piece are symmetrical with respect to the y-axis, the third clamping piece and the fourth clamping piece are symmetrical with respect to the z-axis, and the channel is arranged between the third clamping piece and the fourth clamping piece.

[0020] A first pipe is arranged between the first clamping piece, the third clamping piece and the fourth clamping piece, and a second pipe is arranged between the second clamping piece, the third clamping piece and the fourth clamping piece.

[0021] The y-axis is parallel to the length direction of the pipe, and the y-axis and the x-axis are perpendicular.

[0022] Preferably, the system further comprises a mounting plate and a mounting base.

[0023] The clamping assembly is fixed on the mounting plate, the detection assembly is mounted in the mounting base, one end of the rotating shaft penetrates through the flow-stopping assembly in the clamping assembly and the mounting plate and is connected, and the other end penetrates through the mounting base and the circular detection piece and is connected.

[0024] In a second aspect, the utility model provides a stop valve, the stop valve includes:

[0025] The rotation type flexible pipe stop system provided in the first aspect above;

[0026] The motor mechanism is used for controlling the stop assembly to abut against or release the flexible pipe after rotation.

[0027] In a third aspect, the utility model provides a blood purification equipment, the equipment at least includes the stop valve provided in the second aspect above

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model discloses through the cooperation of clamping assembly and stop assembly, and at least one recess is arranged to the clamping assembly, the recess is designed with the pipeline that the flexible pipe passes through, and one end of the stop assembly is embedded in the clamping assembly, so that the liquid flow in the flexible pipe can be automatically controlled, and the problems of complex structure and oversized are avoided, the number of components required for realizing the liquid control in the flexible pipe is reduced, and the whole is more simple.

[0030] Meanwhile, the number of recesses arranged to the clamping assembly is no longer limited to one, and a pipeline is arranged in each recess, so that the system can meet the requirement of multiple flexible pipes for realizing the liquid output and input in the patient's body in the existing medical treatment.

[0031] The stop assembly is rotated to abut against or release the flexible pipe, which greatly simplifies the operation process of controlling the fluid in the flexible pipe, makes the system more compact and portable, and is easier to realize precise control. The rotation mechanism is used to directly control the closing and opening of the flexible pipe, reduces the requirement of additional mechanical components, eliminates the leakage and friction problems that may occur in traditional valves, makes it more suitable for application scenarios that require frequent and rapid response, improves the sealing performance, and reduces the maintenance cost. At the same time, it also helps to reduce the maintenance cost and improve the convenience of use. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0033] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the utility model, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the functions and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0034] Figure 1 The structure diagram of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0035] Figure 2 The structure diagram of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0036] Figure 3 The structure diagram of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0037] Figure 4 The bottom view of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0038] Figure 5 The structure diagram of the detection device in the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0039] Figure 6 The top view of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0040] Figure 7 The top view of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0041] Figure 8 The structure diagram of the flow stopping assembly in the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0042] Figure 9 The structure diagram of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0043] Figure 10 The structure diagram of the rotary flexible pipe flow stopping system provided for example 1 is shown in the figure.

[0044] Figure 11 The structure diagram of the flow stopping valve provided for example 2 is shown in the figure.

[0045] Illustration:

[0046] 1, system; 2, clamping assembly; 21, groove; 22, pipeline; 221, first pipeline; 222, second pipeline; 23, channel; 24, clamping seat; 241, top end; 242, bottom; 25, first clamping piece; 26, second clamping piece; 27, third clamping piece; 28, fourth clamping piece; 3, flow stopping assembly; 31, rotating connecting piece; 32, extrusion piece; 321, connecting end; 322, extrusion end; 4, detection assembly; 41, circular detection piece; 411, light channel; 42, photoelectric sensing part; 421, light emitting piece; 422, light receiving piece; 423, light path; 5, rotating shaft; 6, mounting plate; 7, mounting base; 8, motor mechanism. DETAILED DESCRIPTION

[0047] In order to make the utility model of the utility model purposes, characteristics, advantages can be more obvious and easy to understand, below will combine the drawings in the embodiments of the utility model, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the following described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model protection.

[0048] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0049] The technical scheme of the utility model will be further illustrated below by combining the drawings and through specific embodiments.

[0050] Embodiment 1

[0051] Please refer to Figure 1 And Figure 2 The utility model embodiment provides a rotary flexible pipe flow stopping system 1, the system 1 includes clamping assembly 2 and flow stopping assembly 3;

[0052] The clamping assembly 2 is provided with at least one groove 21, and each groove 21 is provided with a pipeline 22 for the flexible pipe to pass through;

[0053] The flow-stopping component 3 is embedded in the clamping component 2 at one end and is connected with the clamping component 2, and the flow-stopping component 3 is used to press against or loosen the flexible pipe after being rotated.

[0054] Specifically, the length direction of the pipeline 22 on the clamping component 2 is taken as the y-axis to establish an xy plane, and when the pipeline 22 is installed, the flexible pipe is pressed into the pipeline 22 from the opening of the groove 21, and the length direction of the pipeline 22 is the same as the length direction of the flexible pipe on the clamping component 2.

[0055] Preferably, the size of the flexible pipe before the liquid flow is greater than the size of the notch of the groove 21, and the size of the notch in the z-axis direction is smaller than the diameter of the pipeline 22, so as to avoid the flexible pipe pressed into the pipeline 22 from sliding out of the notch of the groove 21 and directly sliding out of the clamping component 2. When the size of the flexible pipe is too large, the flexible pipe is directly inserted into the pipeline 22 from the side of the clamping component 2.

[0056] When it is necessary to close the liquid flow in the flexible pipe, the flow-stopping component 3 is quickly rotated to a predetermined position and then stopped, and the clamping component 2 is used to press and clamp the flexible pipe in the pipeline 22 to control the liquid flow in the flexible pipe; when it is necessary to open the liquid flow in the flexible pipe, the flow-stopping component 3 is quickly rotated to move away from the predetermined position, thereby controlling the liquid flow in the flexible pipe.

[0057] The utility model discloses a clamping component 2 and the cooperative action of flow-stopping component 3, and at least one groove 21 is arranged in the clamping component 2, the pipeline 22 that the flexible pipe passes through is designed in the groove 21, and one end of the flow-stopping component 3 is embedded in the clamping component 2, so that the liquid flow in the flexible pipe can be automatically controlled, the problems of complex structure and large size are avoided, the number of components required to realize the liquid control in the flexible pipe is reduced, and the whole is more simple.

[0058] The flexible pipe is pressed against or loosened by rotating the flow-stopping component 3, which greatly simplifies the operation process of controlling the fluid in the flexible pipe, makes the system 1 more compact and portable, and is easier to realize precise control. The closing and opening of the flexible pipe are directly controlled by the rotation mechanism, which reduces the need for additional mechanical components, eliminates the leakage and friction problems that may occur in traditional valves, makes it more suitable for application scenarios that require frequent and rapid response, improves the sealing performance, and reduces the maintenance cost. At the same time, it also helps to reduce the maintenance cost and improve the convenience of use.

[0059] In another embodiment, as shown in Figures 3-5 The system 1 further includes a detection component 4 for detecting whether the flow-stopping component 3 presses against or loosens the flexible pipe.

[0060] Specifically, the detection assembly 4 is used to detect whether the stop flow component is still in the preset position, so as to detect and judge whether the stop flow assembly 3 is pressed against or loosened from the flexible pipe. The detection assembly 4 includes photoelectric sensors, magnetic induction sensors, ultrasonic sensors, etc. to detect whether the stop flow assembly 3 is in the preset position.

[0061] When the flexible pipe is pressed into the pipe 22 and the detection assembly 4 is started, the detection assembly 4 detects whether the detection assembly 4 is in the predetermined position in the groove 21 to press the flexible pipe, or whether the detection assembly 4 is moved out of the predetermined position to release the liquid in the flexible pipe.

[0062] In an embodiment, as shown in Figure 6 and Figure 7 The clamping assembly 2 is provided with a channel 23.

[0063] The stop flow assembly 3 includes a rotating connecting piece 31 and a pressing piece 32. One end of the rotating connecting piece 31 is embedded in the channel 23, and the other end is fixedly connected to the pressing piece 32. The rotating connecting piece 31 is used to rotate in the channel to drive the pressing piece 32 to rotate into the groove 21 to press against the flexible pipe.

[0064] Specifically, the channel penetrates the clamping assembly 2 in the z-axis direction, and the z-axis is perpendicular to the xy plane. The rotating connecting piece 31 is vertically inserted into the channel from the top end 241 of the clamping assembly 2, avoiding the need for additional installation positions of the rotating connecting piece 31. This makes the installation distribution of the clamping assembly 2 and the stop flow assembly 3 more compact, and the overall structure smaller and more compact.

[0065] The pressing piece is a cuboid with its high direction parallel to the z-axis, and the plane formed by its width and length is the xy plane. The connection between the pressing piece and the rotating connecting piece is as shown in Figure 8 The pressing piece 32 is provided with a connecting end 321 and a pressing end 322. When the rotating connecting piece 31 rotates, the pressing end 322 is rotated to press the flexible pipe, achieving the disconnection of the liquid in the flexible pipe.

[0066] The axis of the channel coincides with the central axis of the clamping assembly 2 in the z-axis direction, so that the center of gravity of the stop flow assembly 3 on the clamping assembly 2 is also located on the central axis, avoiding the center of gravity of the stop flow assembly 3 from deviating on the clamping assembly 2. At the same time, after the clamping assembly 2 and the stop flow assembly 3 are installed, the pressing piece 32 can occupy the position of the side edge part of the pipe 22 provided on the clamping assembly 2, so that when the pressing part is rotated to the preset position, it can completely close the flexible pipe in the pipe 22, avoiding the flow of a small amount of liquid, and reducing the installation distance between the pressing piece 32 and the pipe 22 in space, making the overall structure more compact.

[0067] In an embodiment, as shown in Figure 9 , Figure 10 , the clamping assembly 2 comprises a clamping seat 24, and a first clamping piece 25 and a second clamping piece 26 arranged at the top end 241 of the clamping seat 24, and the groove 21 is arranged between the first clamping piece 25 and the second clamping piece 26.

[0068] The pressing piece 32 rotates between the first clamping piece 25 and the second clamping piece 26.

[0069] Specifically, the clamping seat 24 is a main structure, the bottom 242 of which is fixed with other structures to provide support for the entire clamping assembly 2 and the flow stopping assembly 3, and the first clamping piece 25, the second clamping piece 26 and the flow stopping assembly 3 are arranged at the top away from the bottom 242, and the first clamping piece 25, the second clamping piece 26 and the flow stopping assembly 3 do not exceed the space of the outermost periphery of the clamping piece in the xy plane.

[0070] The first clamping piece 25 and the second clamping piece 26 are arranged at the center position of the clamping seat 24 in the x-axis direction to fix the flexible pipe on the clamping assembly 2, and the structure at both ends is fixed in the pipe 22 composed of the first clamping piece and the second clamping piece, and the structure in the middle is fixed in the pipe 22 formed between the first clamping piece and the pressing piece 32.

[0071] In an embodiment, as shown in Figure 3 , the system 1 further comprises a rotating shaft 5;

[0072] One end of the rotating shaft 5 penetrates the bottom 242 of the clamping seat 24 and is connected with the rotating connecting piece 31 to drive the rotating connecting piece 31 to rotate.

[0073] The rotating shaft 5 and the rotating connecting piece 31 are fixedly connected, and when the rotating shaft 5 rotates, the rotating connecting piece 31 rotates in the clamping seat 24. Through the fixed connection between the rotating shaft 5 and the rotating connecting piece 31, it can be ensured that the rotating connecting piece 31 can rotate smoothly and accurately when it is driven by the power transmitted by the rotating shaft 5. Not only improves the mechanical efficiency of the system 1, reduces the energy loss, but also enhances the stability of the system 1, so that it can maintain good working condition under different operating conditions. Fixed connection also means reducing the maintenance frequency, because the connection part is not easy to be damaged, and the failure rate of the system 1 is reduced.

[0074] In an embodiment, as shown in Figure 9 , the detection assembly 4 comprises a circular detection piece 41 and a photoelectric sensing part 42, the photoelectric sensing part 42 comprises a light emitting piece 421 and a light receiving piece 422, and a light path 423 is arranged between the light emitting piece 421 and the light receiving piece 422.

[0075] The circular detection piece 41 is sleeved and fixed on the rotating shaft 5, and the edge of the circular detection piece 41 penetrates the light path 423. The edge of the circular detection piece 41 is provided with a light channel 411 for the light emitted by the light emitting piece 421 to pass through.

[0076] Specifically, one end of the rotating shaft 5 is connected with the rotating connecting piece 31 to drive the whole flow-stopping assembly 3 to rotate, and the other end is sleeved with the circular detection piece 41. The circular detection piece 41 and the rotating connecting piece 31 are both fixed on the rotating shaft 5 and rotate with the rotating shaft 5.

[0077] When the circular detection piece 41 is installed, the length direction of the light channel 411 on the circular detection piece 41 and the length direction of the extrusion piece 32 are both installed on the xz plane or the yz plane, that is, in the x or y direction, the length direction of the light channel 411 is parallel to the extrusion piece 32, and the position of the light path 423 of the photoelectric sensing part 42 and the preset position are in the same z-axis direction. When the light channel 411 of the circular detection piece 41 enters the light path 423 of the photoelectric sensing part 42, the extrusion piece rotates to the preset position, the photoelectric sensing part 42 detects the light source entering from the light channel 411, generates a signal to control the rotating shaft 5 to stop rotating, and makes the extrusion piece 32 stop at the preset position and the first clamping piece cooperates to clamp the flexible pipe.

[0078] The size of the circular detection piece 41 is matched with the rotating shaft 5, the light channel 411 is designed on the edge of the circular detection piece 41, the position of the light channel 411 should be aligned with the light path 423 of the photoelectric sensing part 42, when installing, the circular detection piece 41 is installed on the rotating shaft 5 and its position is adjusted to ensure that the light channel 411 on its edge can accurately pass through the light path 423 of the photoelectric sensing part 42. When the circular detection piece 41 rotates to a certain angle, the light channel 411 coincides with the light path 423, allowing the light signal to pass through.

[0079] By fixing the circular detection piece 41 on the rotating shaft 5 and setting a specific light channel 411, when the rotating shaft 5 rotates, the circular detection piece 41 also rotates, and the light channel 411 on its edge will be aligned with the light path 423 at a certain moment, allowing the light to pass through and be detected by the light receiving piece 422 of the photoelectric sensing part 42. According to the detected light signal, the rotating shaft 5 is controlled to stop rotating, so that the extrusion piece 32 can stop at the preset position and the first clamping piece cooperates to extrude and clamp the flexible pipe. Not only simplifies the detection process, realizes the automatic rotation control of the flow-stopping assembly 3, but also improves the detection accuracy.

[0080] In an embodiment, as Figure 6 and Figure 9As shown, when the clamping assembly 2 is provided with a groove 21, the first clamping component 25 is a column with an arc-shaped cross section, and the second clamping component 26 is recessed in the x-axis direction away from the first clamping component 25 to form an arc-shaped rotating channel near the center of the side of the pipe, for the rotation of the extruding component 32 and placement in the arc-shaped rotating channel when the extruding component is not working, so as to avoid the extruding component 32 from touching the second clamping component 26 during rotation.

[0081] Specifically, the groove is arranged between the first extruding component and the second extruding component, and the first extruding component, the second extruding component and the clamping seat are connected and recessed to form a pipe for placing the flexible pipe, and the channel penetrates the center of the clamping seat. When the flow-stopping assembly 3 is installed in the channel, the flow-stopping assembly 3 will occupy part of the pipe. When the flow-stopping assembly 3 is not working, the extruding component 32 is in the arc-shaped rotating channel and does not extrude the pipe. When the flow-stopping assembly 3 needs to work, the rotating connecting component 31 is controlled to rotate to rotate the extruding component 32 out of the arc-shaped rotating channel, and the first clamping component 25 extrudes the flexible pipe in the pipe.

[0082] When the length direction of the extruding component is parallel to the y-axis, the extruding component is rotated by 180°. When the extruding component is rotated out of the arc-shaped rotating channel and the length direction thereof is parallel to the x-axis, the flexible pipe in the pipe is extruded. When the flexible pipe needs to be released, the extruding component is controlled to rotate by 180° into the arc-shaped rotating channel to release the flexible pipe in the pipe.

[0083] Preferably, by controlling the angle formed by the length direction of the extruding component and the x-axis after the extruding component is rotated out of the arc-shaped rotating channel, the extruding force on the flexible pipe is controlled to achieve the control of the flow rate of the liquid in the flexible pipe.

[0084] In an embodiment, as shown in Figure 7 and Figure 10 When the clamping assembly 2 is provided with two grooves 21, the clamping assembly 2 further comprises a third clamping component 27 and a fourth clamping component 28.

[0085] The first clamping component 25 and the second clamping component 26 are symmetrical relative to the y-axis, the third clamping component 27 and the fourth clamping component 28 are symmetrical relative to the z-axis, and the channel is arranged between the third clamping component 27 and the fourth clamping component 28.

[0086] The first pipe 22 is arranged between the first clamping component 25, the third clamping component 27 and the fourth clamping component 28, and the second pipe 22 is arranged between the second clamping component 26, the third clamping component 27 and the fourth clamping component 28.

[0087] The y-axis is parallel to the length direction of the pipe 22, and the y-axis and the x-axis are perpendicular.

[0088] By arranging the flexible pipes in different positions of the clamping assembly 2 reasonably, not only the simultaneous control of multiple flexible pipes is realized, but also the stable fixation of each flexible pipe is ensured. This is conducive to realizing the precise flow control in the multi-path fluid transmission application, and improves the flexibility and reliability of the system 1.

[0089] When performing hemodialysis, plasma exchange, extracorporeal membrane oxygenation or other types of treatment, through the double-groove arrangement, the flexible pipe in one groove is used for blood flowing out of the patient's body, and the flexible pipe in the other groove is used for blood flowing back into the patient's body. When the extrusion piece is not working, its length is parallel to the y-axis. When it is necessary to stop the flow of liquid in a certain flexible pipe, the extrusion piece extrudes the flexible pipe after rotating 90°, thereby closing the flow of liquid in the flexible pipe. When it is necessary to release the flow of liquid in the flexible pipe, the extrusion piece releases the flexible pipe after rotating 90°, thereby realizing the closing and flow of liquid in the flexible pipe. Similarly, the flow and closing of liquid in the flexible pipe in the other groove are controlled in the same way.

[0090] At the same time, the double-groove arrangement makes the flow-stopping system provided by the embodiment well meet the treatment requirements, can handle multiple input and output paths at the same time, thereby supporting synchronous blood output and input, meets the treatment requirements while not increasing additional mechanical structures or equipment, and avoids the problem of complex equipment caused by meeting the treatment requirements.

[0091] In an embodiment, as shown in Figure 3 the system 1 further comprises a mounting plate 6 and a mounting base 7;

[0092] The clamping assembly 2 is fixed to the mounting plate 6, the detection assembly 4 is installed in the mounting base 7, and one end of the rotating shaft 5 is connected to the flow-stopping assembly 3 in the clamping assembly 2 through the mounting plate 6, and the other end is connected to the circular detection piece 41 through the mounting base 7.

[0093] Specifically, the clamping assembly 2 is fixed to the mounting plate 6 by screws, and the rotating shaft 5 passes through the mounting plate 6 and is connected to the rotating connecting piece 31, thereby ensuring the reliable connection between the clamping assembly 2 and the rotating shaft 5, and facilitating the maintenance and replacement of parts.

[0094] The mounting plate 6 provides a solid platform, so that the clamping assembly 2 and the rotating shaft 5 can be stably installed thereon, thereby reducing the vibration and displacement during movement and improving the stability and reliability of the entire system 1. The clamping assembly 2 is fixed to the mounting plate 6 by screws, so that the assembly and disassembly process becomes simpler and faster.

[0095] The central axis of the mounting base 7 and the mounting plate 6 is on the same axis, facilitating the installation of the detection assembly 4 and the flow-stopping assembly 3. Meanwhile, one end of the rotating shaft 5 is connected with the rotary connecting piece 31 in the clamping seat 24 through the mounting plate 6, and the other end is connected with the circular detection piece 41 through the mounting base 7, so that the overall structure is compact, the circular detection piece 41 and the flow-stopping assembly 3 are driven to rotate by the same rotating shaft 5, the rotation frequencies of the circular detection piece 41 and the flow-stopping assembly 3 are the same, and the rotation trajectories of the circular detection piece 41 and the flow-stopping assembly 3 are the same.

[0096] Embodiment 2

[0097] Please refer to Figure 10 , based on the above embodiment 1, the present embodiment provides a flow-stopping valve, the flow-stopping valve comprising:

[0098] The rotating flexible pipe flow-stopping system 1 according to any one of the above embodiment 1;

[0099] The motor mechanism 8 is used for controlling the rotation of the flow-stopping assembly 3 to press the flexible pipe.

[0100] Specifically, the rotating shaft 5 is driven to rotate by the motor mechanism 8, and the flow-stopping assembly 3 is driven to rotate to a preset position, and the circular detection piece 41 in the detection assembly 4 is also driven to rotate.

[0101] Preferably, as Figure 10 , the motor mechanism 8 comprises a motor driving piece and a motor screw rod, the motor screw rod is connected with the rotating shaft 5 and drives the rotating shaft 5 to rotate.

[0102] Preferably, the rotating shaft 5 adopts the motor screw rod, the top end 241 of the motor screw rod is connected with the rotary connecting piece 31, and the bottom end is connected with the circular detection piece 41.

[0103] In an embodiment, as Figure 10 shown, the motor mechanism 8 is arranged between the mounting plate 6 and the mounting base 7.

[0104] Embodiment 3

[0105] Based on the above embodiment 2, the present embodiment provides a blood purification device, the blood purification device at least comprising any one of the flow-stopping valves according to the above embodiment 2. The device is used for treating patients with renal failure, liver failure and other diseases requiring blood purification treatment. The above description is only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotary flexible pipe flow arrest system characterised in that, The system (1) comprises a clamping assembly (2) and a flow-stopping assembly (3); The clamping assembly (2) is provided with at least one groove (21), and each groove (21) is provided with a pipe (22) for the flexible pipe to pass through; The flow-stopping assembly (3) is embedded in the clamping assembly (2) at one end and connected with the clamping assembly (2), and the flow-stopping assembly (3) is used to press against or loosen the flexible pipe after being rotated.

2. A rotary flexible pipe flow arrestment system according to claim 1, wherein The system (1) further comprises a detection assembly (4) for detecting whether the flow-stopping assembly (3) presses against or loosens the flexible pipe.

3. A rotary flexible pipe flow arrestment system according to claim 2, wherein, The clamping assembly (2) is provided with a channel (23); The flow-stopping assembly (3) comprises a rotating connecting piece (31) and a pressing piece (32), one end of the rotating connecting piece (31) is embedded in the channel (23), and the other end is fixedly connected with the pressing piece (32), and the rotating connecting piece (31) is used to rotate in the channel (23) to drive the pressing piece (32) to rotate into the groove (21) to press against the flexible pipe.

4. A rotary flexible pipe flow arrestment system according to claim 3, wherein The clamping assembly (2) comprises a clamping seat (24), a first clamping piece (25) and a second clamping piece (26) arranged at the top end (241) of the clamping seat (24), and the groove (21) is arranged between the first clamping piece (25) and the second clamping piece (26); The pressing piece (32) rotates between the first clamping piece and the second clamping piece.

5. A rotary flexible pipe flow arrestment system according to claim 4, wherein The system (1) further comprises a rotating shaft (5); One end of the rotating shaft (5) penetrates from the bottom (242) of the clamping seat (24) and is connected with the rotating connecting piece (31) to drive the rotating connecting piece (31) to rotate.

6. A rotary flexible pipe flow arrestment system according to claim 5, wherein The detection assembly (4) comprises a circular detection piece (41) and a photoelectric sensing part (42), the photoelectric sensing part (42) comprises a light emitting piece (421) and a light receiving piece (422), and a light path (423) is arranged between the light emitting piece (421) and the light receiving piece (422); The circular detection piece (41) is fixedly sleeved on the rotating shaft (5), the edge of the circular detection piece (41) penetrates through the light path (423), the edge of the circular detection piece (41) is provided with a light channel (411), and the light channel (411) is used for the light emitted by the light emitting piece (421) to pass through.

7. A rotary flexible pipe flow arrestment system according to any of claims 4 to 6, wherein When the clamping assembly (2) is provided with two grooves (21), the clamping assembly (2) further comprises a third clamping piece (27) and a fourth clamping piece (28); The first clamping piece (25) and the second clamping piece (26) are symmetrical relative to the y-axis, the third clamping piece (27) and the fourth clamping piece (28) are symmetrical relative to the z-axis, and the channel (23) is arranged between the third clamping piece (27) and the fourth clamping piece (28); A first pipe (22) is arranged between the first clamping piece (25), the third clamping piece (27) and the fourth clamping piece (28); and a second pipe (22) is arranged between the second clamping piece (26), the third clamping piece (27) and the fourth clamping piece (28). The y-axis is parallel to the length direction of the pipeline (22), and the y-axis and the x-axis are perpendicular.

8. The rotary flexible pipe flow arrest system of claim 6, wherein, The system (1) further comprises a mounting plate (6) and a mounting base (7). The clamping assembly (2) is fixed to the mounting plate (6), the detection assembly (4) is mounted in the mounting base (7), one end of the rotating shaft (5) is connected through the flow-stopping assembly (3) in the clamping assembly (2) and the mounting plate (6), and the other end is connected through the mounting base (7) and the circular detection piece (41).

9. A stop valve characterised in that The flow-stopping valve comprises: The rotary flexible pipe flow-stopping system (1) according to any one of claims 1-8; A motor mechanism (8).

10. A blood purification apparatus characterized by comprising: At least one flow-stopping valve shown in claim 9 is included.

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