阅读说明：本技术 一种预防凝血的透析提醒辅助装置 (Dialysis reminding auxiliary device for preventing blood coagulation ) 是由 赵晓霜 张葆荣 关汭昕 张丹 胡莉莉 孙海瑞 张纪平 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种预防凝血的透析提醒辅助装置,涉及医疗器械技术领域,包括限流管,所述限流管的外部活动连接有固定支杆,所述限流管的内部活动连接有定位盘,所述定位盘的正面活动连接有定位柱,所述定位盘的正面活动连接有顶块,所述定位盘的正面活动连接有阻流机构,所述定位盘正面的中部活动连接有推杆,所述限流管的背面分别固定连接有限位块和活动块。该预防凝血的透析提醒辅助装置,通过自动阻流的优点避免了因透析液达到或接近临界值不能及时关闭设备所造成的问题,提高了使用时的安全性和可靠性,能及时准确的对透析设备的透析进度进行自动控制,降低了患者可能存在的风险,为医护人员的工作提供了一定的支持。(The invention discloses a dialysis reminding auxiliary device for preventing blood coagulation, which relates to the technical field of medical instruments and comprises a flow limiting pipe, wherein the outer part of the flow limiting pipe is movably connected with a fixed supporting rod, the inner part of the flow limiting pipe is movably connected with a positioning disc, the front side of the positioning disc is movably connected with a positioning column, the front side of the positioning disc is movably connected with a top block, the front side of the positioning disc is movably connected with a flow blocking mechanism, the middle part of the front side of the positioning disc is movably connected with a push rod, and the back side of the flow limiting pipe is respectively and fixedly connected with a limiting block and. This auxiliary device is reminded in dialysis of prevention blood coagulation has avoided the problem that can not in time close equipment and cause because of the dislysate reaches or is close the critical value through automatic choked flow's advantage, has improved security and reliability when using, can be timely accurate carry out automatic control to the dialysis progress of dialysis equipment, has reduced the risk that the patient probably exists, provides certain support for medical personnel's work.)

1. The utility model provides a dialysis of prevention blood coagulation reminds auxiliary device, includes current-limiting pipe (1), its characterized in that: the outer part of the flow limiting pipe (1) is movably connected with a fixed support rod (2), the inner part of the flow limiting pipe (1) is movably connected with a positioning disc (3), the front side of the positioning disc (3) is movably connected with a positioning column (4), the front side of the positioning disc (3) is movably connected with a top block (5), the front side of the positioning disc (3) is movably connected with a flow blocking mechanism (6), the middle part of the front side of the positioning disc (3) is movably connected with a push rod (7), and the back side of the flow limiting pipe (1) is respectively and fixedly connected with a limiting block (8) and a movable block (9);

the flow blocking mechanism (6) comprises a movable frame (61), positioning seats (62) are connected inside the movable frame (61) in a specified mode, return springs (63) are movably connected among the positioning seats (62), and flow blocking blocks (64) are movably connected to the outer side of the movable frame (61);

the outer side of the flow limiting pipe (1) is movably connected with a positioning frame (10), the inner part of the positioning frame (10) is movably connected with a movable contact group (11), the inner part of the positioning frame (10) is movably connected with a central block (12), a guide groove (13) is formed in the central block (12), a clamping block (14) is movably connected to the front of the central block (12), a rotary table (15) is movably connected to the front of the central block (12), and a transmission groove (16) is formed in the rotary table (15);

the back fixedly connected with driven gear (17) of carousel (15), the inside swing joint of driven gear (17) has driving gear (18), the outside swing joint of driving gear (18) has rack (19).

2. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: the section shapes of the flow limiting pipe (1) and the positioning disc (3) are circular, the circle centers of the flow limiting pipe and the positioning disc are on the same straight line, and the positioning disc (3) is inserted in the flow limiting pipe (1).

3. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: twelve fixed supporting rods (2) are arranged, the specifications and the sizes are the same, and the distance and the angle between every two adjacent fixed supporting rods (2) are the same.

4. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: the positioning column (4) is cylindrical, the top block (5) is cuboid, and the center point of the locating column and the center point of the top block are on the same horizontal line with the circle center of the positioning disc (3).

5. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: stopper (8) comprise two the same massive structures, push rod (7) are provided with two, and push rod (7) at the back are located between two massive structures of stopper (8), the back of movable block (9) is provided with the pivot, and this pivot runs through positioning disk (3) and with kicking block (5) swing joint.

6. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: the movable frame (61) is provided with two, and the specification and size of two movable frame (61) is the same, is semi-circular and the centre of a circle for the same point, two the left end of movable frame (61) all is provided with semi-circular snap ring, and the specification and size of two semi-circular snap rings is the same, and the internal diameter of this snap ring and the size looks adaptation of reference column (4) and reference column (4) are located between two snap rings, and the centre of a circle of two snap rings is the same point with the centre of a circle of positioning disk (3).

7. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: the movable contact group (11) is composed of two independent contact blocks, the specification and the size of the two contact blocks are the same, one end of each contact block is of a trapezoidal protruding structure, the other end of each contact block is of a planar structure, the two protruding structures in the initial state are in a relative state, one contact is located in the trapezoidal protruding structure of the contact block above, the other contact is located in the planar structure of the contact block below, and the length from the planar structure to the trapezoidal protruding structure is the same as the size from the inner ring of the turntable (15) to the fixture block (14).

8. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: the outside of locating frame (10) is provided with two guide blocks, and the specification and the size of two guide blocks are all the same, and the guide way has been seted up to the inside of guide block, and the size of this guide way and the size looks adaptation of movable contact group (11), the angle between two guide ways is 160.

9. A dialysis reminding auxiliary device for preventing blood coagulation according to claim 1, characterized in that: carousel (15) cover is established in the outside of center block (12) and the two is concentric state, transmission groove (16) are provided with six altogether, the size and the movable contact group (11) looks adaptation of transmission groove (16), and the angle between two adjacent transmission grooves (16) is the same, is 60.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a dialysis reminding auxiliary device for preventing blood coagulation.

Background

Hemodialysis, also known as artificial kidney and kidney washing in popular parlance, is a blood purification technology, and utilizes the principle of semipermeable membrane to remove various harmful and redundant metabolic wastes and excessive electrolytes out of the body by diffusion to achieve the purpose of purifying blood and absorb water to correct water electrolytes and acid-base balance, and is widely used in the medical field of nephrology.

Dialysis procedures require the operation of specialized medical personnel and are performed at qualified medical facilities to ensure the life safety of patients. Due to the fact that general patients of medical institutions with the qualification are large in number, and the number of patients and beds for medical staff is large and complicated, even though professional medical knowledge is provided, under the working environment with high tension, high strength and high load, and due to the fact that medical common knowledge of part of patients is weak, the dialysis condition can not be monitored in real time in time.

When the dialysate in the equipment reaches or is close to the critical value, the dialysis equipment needs to be closed in time and subsequent operations such as tube drawing are carried out, the reasons are integrated, if the dialysate reaches the critical value and the equipment is not closed, the pressure value in the blood of a patient can be increased, the damage of blood cells is caused, and the great potential safety hazard exists. In addition, even if the patient can in time discover the critical condition of the dialysate, still need to call relevant medical personnel through the call button of the bedside, and under normal conditions, nurse station generally is located in the middle of the floor, and medical personnel still need certain time to arrive in the ward, because the patient lacks professional medical knowledge, even if discover the critical condition of the dialysate, also need wait for medical personnel to arrive.

In order to solve the problems, the inventor provides a dialysis reminding auxiliary device for preventing blood coagulation, which has the advantage of automatic flow blocking, avoids the problem that equipment cannot be closed timely when dialysate reaches or approaches a critical value, improves the safety and reliability during use, reduces the possible risks of patients, and provides certain support for the work of medical staff.

Disclosure of Invention

The present invention is made to solve the above-mentioned problems in the background art, and an object of the present invention is to provide a dialysis reminding aid for preventing blood coagulation.

A dialysis reminding auxiliary device for preventing blood coagulation comprises a flow limiting pipe, a fixed supporting rod, a positioning disc, a positioning column, a top block, a flow blocking mechanism, a push rod, a limiting block, a movable block, a positioning frame, a movable contact group, a central block, a guide groove, a clamping block, a rotary disc, a transmission groove, a driven gear, a driving gear and a rack;

wherein: the flow blocking mechanism comprises a movable frame, a positioning seat, a return spring and a flow blocking block;

the positions and the connection relations of the structures are as follows:

the outer part of the flow-limiting pipe is movably connected with a fixed support rod, the inner part of the flow-limiting pipe is movably connected with a positioning disc, the front side of the positioning disc is movably connected with a positioning column, the front side of the positioning disc is movably connected with a top block, the front side of the positioning disc is movably connected with a flow-blocking mechanism, the middle part of the front side of the positioning disc is movably connected with a push rod, and the back side of the flow-limiting pipe is respectively and fixedly connected with a limiting block and a movable;

the flow blocking mechanism comprises a movable frame, positioning seats are connected inside the movable frame in a specified mode, a return spring is movably connected between the positioning seats, and a flow blocking block is movably connected to the outer side of the movable frame;

the outer side of the flow limiting pipe is movably connected with a positioning frame, the inner part of the positioning frame is movably connected with a movable contact group, the inner part of the positioning frame is movably connected with a central block, a guide groove is formed in the central block, the front of the central block is movably connected with a clamping block, the front of the central block is movably connected with a turntable, and a transmission groove is formed in the turntable;

the back of the rotary table is fixedly connected with a driven gear, the interior of the driven gear is movably connected with a driving gear, and the outer side of the driving gear is movably connected with a rack;

preferably, the number of the positioning seats is four, two positioning seats are respectively arranged on the inner sides of the two movable frames, the two vertical positioning seats are on the same straight line, and the two horizontal positioning seats are on the same straight line;

preferably, the two flow blocking blocks are arranged, have the same specification and size, are semicircular in shape and have the same circle center, and are respectively corresponding to and movably connected with the two movable frames;

preferably, the central axes of the positioning frame, the central block and the turntable are on the same straight line;

preferably, the right ends of the two movable frames are provided with plane structures, the distance between the two plane structures is matched with the size of the top block, the top block is positioned between the two plane structures, and the midpoint between the two plane structures and the circle center of the positioning disc are the same point;

preferably, the front surface of the movable block is movably hinged with a connecting rod, one end of the connecting rod, which is far away from the movable block, is movably hinged with a push rod on the back surface, the two push rods are respectively movably hinged with the front surface and the back surface of the positioning disk, and the two hinged points are on the same straight line with the circle center of the positioning disk;

preferably, the top of the rack is provided with a rubber piston and is positioned inside the dialysate container, and the two are movably connected.

The invention has the beneficial effects that:

1. this auxiliary device is reminded in dialysis of prevention blood coagulation, constitute by two independent contact blocks through the movable contact group, the specification and dimension homogeneous phase of two contact blocks is the same, one end is trapezoidal protruding structure, one end is planar structure, two protruding structures are relative state under the initial condition, a contact is located the trapezoidal protruding structure of top contact block, another contact is located the planar structure of below contact block, utilize the principle of two contacts, make the structure simpler, it is more convenient to operate, simultaneously through the setting to two contact initial position, the precision when having improved the device and using, the reliability of equipment in actual operation has been guaranteed.

2. This auxiliary device is reminded in dialysis of prevention blood coagulation has avoided the problem that can not in time close equipment and cause because of the dislysate reaches or is close the critical value through automatic choked flow's advantage, has improved security and reliability when using, can be timely accurate carry out automatic control to the dialysis progress of dialysis equipment, has reduced the risk that the patient probably exists, provides certain support for medical personnel's work.

Drawings

FIG. 1 is a schematic view of a connecting structure of a choke tube, a positioning plate, a positioning column, a top block, a choke mechanism and a push rod according to the present invention, wherein each structure is in an initial state, i.e., the push rod and the top block do not move, and the choke mechanism does not move;

FIG. 2 is a schematic view of a connecting structure of the current-limiting tube, the push rod, the limiting block and the movable block;

FIG. 3 is a schematic diagram of the movement track of the connecting structure of the choke tube, the positioning disc, the positioning column, the top block, the choke mechanism and the push rod according to the present invention, wherein the push rod and the top block rotate and drive the choke mechanism to move synchronously;

FIG. 4 is a schematic view of a connection structure of a choke tube, a fixed support rod, a positioning plate and a positioning post according to the present invention;

FIG. 5 is a schematic view of the connection structure of the flow blocking mechanism and the movable frame, the positioning device, the return spring and the flow blocking block, wherein all the structures are in the initial state and do not change in position and motion;

FIG. 6 is an enlarged view of the structure at A of FIG. 1, wherein neither the top block nor the movable frame is in motion;

FIG. 7 is an enlarged view of the structure B of FIG. 3, wherein the top block rotates and drives the two movable frames to move back to back;

FIG. 8 is a schematic view of the connection structure of the movable frame, the movable contact group, the guide slot, the clamping block, the turntable and the transmission slot of the present invention, wherein each structure is at an initial position and does not change position and angle;

FIG. 9 is a schematic view of the connection structure of the turntable, the driven gear, the driving gear and the rack according to the present invention;

FIG. 10 is a first schematic diagram of the movement locus of the connecting structure of the positioning frame, the movable contact group, the guide groove, the clamping block, the turntable and the transmission groove, in which the transmission groove drives the first contact block of the movable contact group to move, and when the transmission groove rotates along with the turntable to coincide with the axis of the guide groove outside the positioning frame, the first contact block falls into the transmission groove under the action of gravity;

FIG. 11 is a schematic diagram of a second motion trajectory of a connecting structure of the positioning frame, the movable contact group, the guide groove, the fixture block, the turntable and the transmission groove, according to the present invention, wherein the turntable rotates until the next transmission groove coincides with the guide groove axis outside the positioning frame, and the second contact block of the movable contact group falls into the transmission groove under the action of gravity;

FIG. 12 is a third schematic diagram of the movement locus of the connecting structure of the positioning frame, the movable contact group, the guide groove, the clamping block, the turntable and the transmission groove of the present invention, wherein the second contact block of the movable contact group is limited by the clamping block;

fig. 13 is a fourth schematic diagram of the movement locus of the connecting structure of the positioning frame, the movable contact group, the guide groove, the clamping block, the turntable and the transmission groove, in which the second contact block of the movable contact group moves to coincide with the axis of the second guide groove outside the positioning frame, the second contact block slides down to the inside of the second guide groove under the action of gravity, and the graphic projection structure of the second contact block contacts with the planar structure of the first contact block;

FIG. 14 is an enlarged view of the structure of FIG. 10 at C;

FIG. 15 is an enlarged view of the structure of FIG. 12 of the present invention at D.

The structure names and labels in the figure are as follows:

1. a current limiting pipe; 2. fixing the supporting rod; 3. positioning a plate; 4. a positioning column; 5. a top block; 6. a flow choking mechanism; 7. a push rod; 8. a limiting block; 9. a movable block; 10. a positioning frame; 11. a movable contact group; 12. a center block; 13. a guide groove; 14. a clamping block; 15. a turntable; 16. a transmission slot; 17. a driven gear; 18. a driving gear; 19. a rack; 61. a movable frame; 62. positioning seats; 63. a return spring; 64. a flow choking block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention is as follows:

please refer to fig. 1 to fig. 15:

the dialysis reminding auxiliary device for preventing blood coagulation comprises a flow limiting pipe 1, a fixed support rod 2, a positioning disc 3, a positioning column 4, a top block 5, a flow blocking mechanism 6, a push rod 7, a limiting block 8, a movable block 9, a positioning frame 10, a movable contact group 11, a central block 12, a guide groove 13, a clamping block 14, a rotary table 15, a transmission groove 16, a driven gear 17, a driving gear 18 and a rack 19;

wherein: the choke mechanism 6 comprises a movable frame 61, a positioning seat 62, a return spring 63 and a choke block 64;

the initial positions and the connection relations of the structures are as follows:

the outside of the current-limiting pipe 1 is movably connected with a fixed support rod 2, the inside of the current-limiting pipe 1 is movably connected with a positioning disc 3, the front of the positioning disc 3 is movably connected with a positioning column 4, the front of the positioning disc 3 is movably connected with a top block 5, the front of the positioning disc 3 is movably connected with a flow-blocking mechanism 6, the middle part of the front of the positioning disc 3 is movably connected with a push rod 7, and the back of the current-limiting pipe 1 is respectively and fixedly connected with a limiting block 8 and a movable block;

the flow blocking mechanism 6 comprises a movable frame 61, positioning seats 62 are fixedly connected inside the movable frame 61, return springs 63 are movably connected between the positioning seats 62, and a flow blocking block 64 is movably connected to the outer side of the movable frame 61;

the outer side of the current-limiting pipe 1 is movably connected with a positioning frame 10, the inner part of the positioning frame 10 is movably connected with a movable contact group 11, the inner part of the positioning frame 10 is movably connected with a central block 12, the inner part of the central block 12 is provided with a guide groove 13, the front side of the central block 12 is movably connected with a clamping block 14, the front side of the central block 12 is movably connected with a turntable 15, and the inner part of the turntable 15 is provided with a transmission groove 16;

the back of the rotary table 15 is fixedly connected with a driven gear 17, the interior of the driven gear 17 is movably connected with a driving gear 18, and the outer side of the driving gear 18 is movably connected with a rack 19;

wherein:

a. the section shapes of the current-limiting pipe 1 and the positioning disc 3 are both circular, the circle centers of the current-limiting pipe 1 and the positioning disc 3 are on the same straight line, the positioning disc 3 is inserted inside the current-limiting pipe 1, twelve fixed support rods 2 are arranged, the specification and the size are the same, the distance and the angle between every two adjacent fixed support rods 2 are the same, four positioning seats 62 are arranged, two positioning seats 62 are respectively arranged on the inner sides of two movable frames 61, two vertical positioning seats 62 are on the same straight line, and two horizontal positioning seats 62 are on the same straight line;

b. the positioning column 4 is cylindrical, the top block 5 is cuboid, the center points of the two are on the same horizontal line with the center of the positioning disc 3, the rotary disc 15 is sleeved on the outer side of the center block 12 and is concentric with the center block, six transmission grooves 16 are formed, the size of each transmission groove 16 is matched with that of the movable contact group 11, and the angles between every two adjacent transmission grooves 16 are the same and are 60 degrees;

c. the limiting block 8 is composed of two same block-shaped structures, the push rods 7 are provided with two, the push rods 7 on the back are positioned between the two block-shaped structures of the limiting block 8, the back of the movable block 9 is provided with a rotating shaft, the rotating shaft penetrates through the positioning disk 3 and is movably connected with the top block 5, the two flow blocking blocks 64 are arranged, the specification and the size of the two flow blocking blocks 64 are the same, the shapes of the two flow blocking blocks 64 are semicircular, the circle centers of the two flow blocking blocks are the same, and the two flow blocking blocks 64 are respectively corresponding to and movably;

wherein:

d. the two movable frames 61 are arranged, the specification and the size of the two movable frames 61 are the same, the two movable frames 61 are both semicircular and have the same circle center, the left ends of the two movable frames 61 are respectively provided with a semicircular snap ring, the specification and the size of the two semicircular snap rings are the same, the inner diameter of each snap ring is matched with the size of the positioning column 4, the positioning column 4 is positioned between the two snap rings, the circle centers of the two snap rings and the circle center of the positioning disc 3 are the same point, the central axes of the positioning frame 10, the central block 12 and the rotary disc 15 are on the same straight line, the top of the rack 19 is provided with a rubber piston and is positioned in the dialysate container;

e. the movable contact group 11 is composed of two independent contact blocks, the specification and size of the two contact blocks are the same, one end of each contact block is a trapezoidal convex structure, the other end of each contact block is a planar structure, the two convex structures are in a relative state in an initial state, one contact is positioned in the trapezoidal convex structure of the upper contact block, the other contact is positioned in the planar structure of the lower contact block, the length from the planar structure to the trapezoidal convex structure is the same as the size from the inner circle of the turntable 15 to the fixture block 14, the front side of the movable block 9 is movably hinged with a connecting rod, one end of the connecting rod, far away from the movable block 9, is movably hinged with a push rod 7 on the back side, the two push rods 7 are respectively movably hinged with the front side and the back side of the positioning disc 3;

f. two guide blocks are arranged on the outer side of the positioning frame 10, the specifications and the sizes of the two guide blocks are the same, guide grooves are formed in the guide blocks, the sizes of the guide grooves are matched with the sizes of the movable contact groups 11, the angle between the two guide grooves is 160 degrees, planar structures are arranged at the right ends of the two movable frames 61, the distance between the two planar structures is matched with the size of the top block 5, the top block 5 is located between the two planar structures, and the middle point between the two planar structures and the circle center of the positioning disc 3 are the same point;

working principle and process of the invention

When the dialysis device is used, two independent contact blocks of the movable contact group 11 are placed in a first guide groove on the outer side of the positioning frame 10 in a relative state, an external power circuit is arranged in a second guide groove on the outer side of the positioning frame 10, the power output end of the external power circuit is movably connected with the push rod 7, the top of the rack 19 is provided with a rubber piston and is positioned in the dialysate container, dialysis equipment is started, and the rack 19 gradually moves downwards along with the reduction of dialysate in the dialysis equipment.

Because the rack 19, the driving gear 18 and the driven gear 17 are engaged with each other, and the driven gear 17 is located on the back of the rotary table 15 and is fixedly connected with the same, the rotary table 15 can start to rotate under the driving of the rack 19 and drive the internal structure thereof to synchronously move in the same direction.

Please refer to fig. 8 to fig. 9 for the above structure and process.

Because two independent contact blocks of the movable contact group 11 are placed in a first guide groove on the outer side of the positioning frame 10 in a relative state, when the transmission groove 16 rotates along with the rotary table 15 to coincide with the axis of the guide groove, the first contact block falls into the transmission groove 16 under the action of gravity, at the moment, the rotary table 15 and the transmission groove 16 continue to rotate and drive the first contact block to move synchronously, when the rotary table 15 rotates to the next transmission groove 16 to coincide with the axis of the guide groove, the second contact block falls into the transmission groove 16 under the action of gravity, at the moment, the rotary table 15 and the transmission groove 16 continue to rotate and drive the second contact block to move synchronously.

Because the two convex structures are in a relative state in the initial state, the length from the plane structure to the trapezoidal convex structure is the same as the size from the inner ring of the rotary table 15 to the fixture block 14, namely the trapezoidal convex of the first contact block is positioned below, the trapezoidal convex of the second contact block is positioned above, when the transmission groove 16 carrying the first contact block moves to coincide with the axis of the guide groove 13, the two transmission grooves 16 on the same axis are on the same axis with the guide groove 13 and the second guide groove, and at the moment, the first contact block can enter the guide groove through the guide groove 13 under the action of gravity.

Please refer to fig. 8 and 10 for the above structure and process.

After the first contact block enters the second guide groove, the rotating disc 15 and the transmission groove 16 drive the second contact block to continue rotating, and because the trapezoidal protrusion of the first contact block is located below, the second trapezoidal protrusion is located above, and the length from the planar structure to the trapezoidal protrusion structure is the same as the size from the inner ring of the rotating disc 15 to the clamping block 14, when the transmission groove 16 carrying the second contact block moves to coincide with the axis of the guide groove 13, two transmission grooves 16 on the same axis are on the same axis with the guide groove 13 and the second guide groove, but at this time, the trapezoidal protrusion of the second contact block is clamped with the clamping block 14, cannot enter the guide groove through the guide groove 13, and can only continue rotating along with the rotating disc 15 and the transmission groove 16.

When the second contact block moves to coincide with the axis of the second guide groove, the second contact block slides to the inside of the second guide groove under the action of gravity, at the moment, the pattern convex structure of the second contact block is contacted with the plane structure of the first contact block, one contact is positioned in the trapezoid convex structure of the upper contact block, the other contact is positioned in the plane structure of the lower contact block, at the moment, the two contacts are contacted, an external power circuit arranged in the second guide groove is communicated, and the push rod 7 starts to move at the moment because the power output end of the external power circuit is movably connected with the push rod 7.

The structure and process are described with reference to fig. 11-15.

Through the process, after the two contact points are contacted, the external power can push the push rod 7 to rotate by taking the hinged point of the push rod and the positioning disk 3 as a fulcrum, and as the front surface of the movable block 9 is movably hinged with the connecting rod, one end of the connecting rod, which is far away from the movable block 9, is movably hinged with a push rod 7 on the back, the two push rods 7 are respectively movably hinged with the front and back surfaces of the positioning disc 3, the two hinged points are both on the same straight line with the circle center of the positioning disc 3, therefore, the push rod 7 can drive the top block 5 to rotate at the moment, because the right ends of the two movable frames 61 are both provided with the plane structures, the distance between the two plane structures is matched with the size of the top block 5, the top block 5 is positioned between the two plane structures, the middle point between the two plane structures and the circle center of the positioning disk 3 are the same point, therefore, the top block 5 can push the two plane structures to move up and down respectively, and the two movable frames 61 move back and forth with the 4-position supporting points of the positioning columns.

Because the choked flow piece 64 is provided with two, two choked flow piece 64's specification and size are all the same, the shape is semi-circular and the centre of a circle is the same point, two choked flow piece 64 correspond and swing joint with two movable frame 61 respectively, so can drive two choked flow piece 64 synchronous syntropy motion when two movable frame 61 do the motion of keeping away from each other respectively, two choked flow piece 64 and the contact of the inner wall of current-limiting pipe 1 this moment, current-limiting pipe 1 is the closed condition, the dislysate no longer circulates.

Please refer to fig. 1 to 7 for the above structure and process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.