CN216148856U

CN216148856U - Check valve structure of medical drainage tube

Info

Publication number: CN216148856U
Application number: CN202023260149.3U
Authority: CN
Inventors: 彭金文
Original assignee: Huaian Hailun Medical Equipment Co ltd
Current assignee: Huaian Hailun Medical Equipment Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-04-01
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of check valves, in particular to a check valve structure of a medical drainage tube, which comprises a check valve tube body, drainage tubes, a plugging mechanism and a springing device, wherein two groups of drainage tubes are symmetrically arranged at two ends of the check valve tube body; the crank swings towards one side, the crank pushes the slide bar to move along the inner wall of the sleeve through the support, the spring is extruded, when the drainage device stops working, under the action of the rebound force of the spring, the slide bar pushes the crank, the crank enables the sealing rubber to be completely matched with the plugging ring through the pressing plate, the effect of fast plugging of the check valve is achieved, and backflow of a small amount of liquid is avoided.

Description

Check valve structure of medical drainage tube

Technical Field

The utility model relates to the technical field of check valves, in particular to a check valve structure of a medical drainage tube.

Background

The drainage device is a medical device used for guiding liquid such as pus, blood, effusion and the like accumulated at human body parts such as wounds, cerebral cavities, gastrointestinal tracts, abdominal cavities, biliary tracts and the like to the outside of a body, generally adopts a negative pressure sealing bag for drainage, drainage flow cannot be accurately controlled, even has the risk of countercurrent pollution, and in order to prevent backflow, the drainage device is often connected with a check valve through a group of drainage tubes and is prevented from countercurrent through the check valve.

When the negative pressure sealing bag in the drainage device stops working, the interior of the check valve cannot be immediately closed, so that little liquid backflow is caused, and the sucked liquid has strong corrosivity and is polluted greatly, so that the check valve must be cleaned once when used every time, the existing check valve is connected with the drainage device too complicated, and great inconvenience is brought to medical personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a check valve structure of a medical drainage tube, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a check valve structure of a medical drainage tube comprises a check valve tube body, drainage tubes, a plugging mechanism and a spring device, wherein two groups of drainage tubes are symmetrically arranged at two ends of the check valve tube body;

the check valve body comprises a valve body, a round hole is formed in the middle of the valve body, and two groups of quick joint mechanisms are symmetrically arranged at two ends of the valve body.

Preferably, the plugging mechanism comprises a plugging ring, the plugging ring is embedded into the inner wall of the valve body, sealing rubber is embedded into the plugging ring, one side of the sealing rubber is connected with a pressing plate, and the pressing plate is connected with the swing arm mechanism.

Preferably, the suppressing device comprises an extension pipe body, one end of the extension pipe body is connected with the port part of the round hole, the other end of the extension pipe body is provided with a plugging cover, and a connecting rod mechanism is arranged in the extension pipe body.

Preferably, quick-operation joint mechanism includes the external screw thread, and the valve body both ends symmetry sets up two sets of external screw threads, and the adapter tube is connected to external screw thread one side, and the drainage tube is established to the cover on the adapter tube, external screw thread spiro union pipe box.

Preferably, the swing arm mechanism includes the crank, and clamp plate is connected to crank one end, and the crank other end passes the rectangular channel that sets up on the extension body inner wall and is connected with the guide pillar, and the guide pillar both ends symmetry sets up two sets of bearings, and bearing embedding supporting seat, supporting seat connection extension body lateral wall.

Preferably, the link mechanism comprises two groups of supports, one group of supports is connected with the crank and is hinged with the sliding rod through a guide pillar, the other group of supports is connected with the inner wall of the extension pipe body and is hinged with the sleeve through the guide pillar, a vertical bearing is arranged on the sliding rod and is embedded into the sleeve, and a spring is arranged at one end of the sliding rod penetrating through the vertical bearing.

Compared with the prior art, the utility model has the beneficial effects that:

1. the group of drainage tubes are connected with the drainage device, when the check valve needs to be disassembled for cleaning, the tube sleeve is rotated to separate the tube sleeve from the external thread, then the drainage tube is pulled out of the adapting tube, the structure of the body of the check valve is simple and easy to operate, and the check valve is convenient to disassemble and assemble by workers, so that the workers can clean the check valve conveniently;

2. the crank swings towards one side, the crank pushes the slide bar to move along the inner wall of the sleeve through the support, the spring is extruded, when the drainage device stops working, under the action of the rebound force of the spring, the slide bar pushes the crank, the crank enables the sealing rubber to be completely matched with the plugging ring through the pressing plate, the effect of fast plugging of the check valve is achieved, and backflow of a small amount of liquid is avoided.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1A;

FIG. 3 is a combined view of the sealing ring, sealing rubber and pressing plate of the present invention.

In the figure: 1 check valve tube body, 2 drainage tubes, 3 plugging mechanisms, 4 elastic pressing devices, 101 round holes, 102 valve bodies, 103 quick connector mechanisms, 301 plugging rings, 302 sealing rubber, 303 pressing plates, 304 swing arm mechanisms, 401 plugging covers, 402 connecting rod mechanisms, 403 extending tube bodies, 1031 adapting tubes, 1032 pipe sleeves, 1033 external threads, 3041 supporting seats, 3042 guide columns, 3043 cranks, 4021 rotating shafts, 4022 supporting seats, 4023 springs, 4024 sleeve pipes and 4025 sliding rods.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a check valve structure of a medical drainage tube comprises a check valve tube body 1, two drainage tubes 2, a plugging mechanism 3 and a spring device 4, wherein two groups of drainage tubes 2 are symmetrically arranged at two ends of the check valve tube body 1, the plugging mechanism 3 is arranged in the check valve tube body 1, the spring device 4 is arranged at one side of the plugging mechanism 3, the check valve tube body 1 comprises a valve body 102, a round hole 101 is arranged in the middle of the valve body 102, two groups of quick joint mechanisms 103 are symmetrically arranged at two ends of the valve body 102, the quick joint mechanisms 103 comprise external threads 1033, two groups of external threads 1033 are symmetrically arranged at two ends of the valve body, one side of the external threads 1033 is connected with a receiving tube 1031, the drainage tube 2 is sleeved on the receiving tube 1031, the external threads 1033 are screwed with a tube sleeve 1032, one group of the drainage tubes 2 is connected with a drainage device, when the check valve needs to be disassembled for cleaning, the tube 1032 is rotated to be separated from the external threads 1033, and then the drainage tube 2 is pulled out from the receiving tube 1031, the check valve body 1 is simple in structure and easy to operate, and is convenient for workers to disassemble and assemble, so that the workers can clean the check valve conveniently;

further, the plugging mechanism 3 includes a plugging ring 301, the plugging ring 301 is embedded in the inner wall of the valve body 102, a sealing rubber 302 is embedded in the plugging ring 301, one side of the sealing rubber 302 is connected with a pressing plate 303, the pressing plate 303 is connected with a swing arm mechanism 304, the swing arm mechanism 304 includes a crank 3043, one end of the crank 3043 is connected with the pressing plate 303, the other end of the crank 3043 passes through a rectangular groove arranged on the inner wall of the extension tube body 403 to be connected with a guide post 3042, two sets of bearings are symmetrically arranged at two ends of the guide post 3042, the bearings are embedded in a supporting seat 3041, the supporting seat 3041 is connected with the side wall of the extension tube body 403, when the flow diverter starts to work, the flow diverter pumps air in the check valve body 1 through a drainage tube 2, so that one side of the pressing plate 303 generates negative pressure, the sealing rubber 302 is separated from the plugging ring 301 due to the effect of pressure, and the pressing plate 303 swings to one side under the cooperation of the crank 3043 and the guide post 3042, so that the inside of the check valve is opened, the liquid is extracted;

further, the elastic pressing device 4 comprises an extension pipe 403, one end of the extension pipe 403 is connected with the port of the round hole 101, the other end of the extension pipe 403 is provided with a plugging cover 401, a connecting rod mechanism 402 is arranged in the extension pipe 403, the connecting rod mechanism 402 comprises two sets of supports 4022, the supports 4022 are arranged in two sets, one set of supports 4022 is connected with a crank 3043, one set of supports 4022 is hinged with a sliding rod 4025 through a guide post 3042, the other set of supports 4022 is connected with the inner wall of the extension pipe 403, the other set of supports 4022 is hinged with a sleeve 4024 through a guide post 3042, an upright bearing is arranged on the sliding rod 4025, the upright bearing is embedded in the sleeve 4024, one end of the sliding rod 4025 penetrates through the upright bearing to be provided with a spring 4023, wherein when the crank 3043 swings towards one side, the crank 3043 pushes the sliding rod 4025 to move along the inner wall of the sleeve 4024 through the support 4022 and presses the spring 4023, when the drainage device stops working, the sliding rod 4025 pushes the crank 3043 under the action of the resilience force of the spring 3043, the crank 3043 makes the sealing rubber 302 and the plugging ring 301 completely fit through the pressing plate 303, so as to achieve the effect of quick plugging of the check valve and avoid the backflow of a small amount of liquid.

The working principle is as follows: in the using process, when the flow diverter starts to work, the flow diverter pumps air in the check valve body 1 through the drainage tube 2, so that negative pressure is generated on one side of the pressure plate 303, the sealing rubber 302 is separated from the plugging ring 301 due to the action of pressure, meanwhile, the pressure plate 303 swings towards one side under the matching action of the crank 3043 and the guide pillar 3042, the crank 3043 swings towards one side, meanwhile, the crank 3043 pushes the sliding rod 4025 to move along the inner wall of the sleeve 4024 through the support 4022 and presses the spring 4023, so that the interior of the check valve is opened, when the flow diverter stops working, under the action of the rebound force of the spring 4023, the sliding rod 4025 pushes the crank 3043, and the crank 3043 completely fits the sealing rubber 302 with the plugging ring 301 through the pressure plate 303, so as to achieve the effect of quick plugging of the check valve.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a check valve structure of medical drainage tube, includes check valve body (1), drainage tube (2), shutoff mechanism (3), suppress device (4), its characterized in that: two groups of drainage tubes (2) are symmetrically arranged at two ends of the check valve tube body (1), a plugging mechanism (3) is arranged in the check valve tube body (1), and an elastic device (4) is arranged on one side of the plugging mechanism (3);

the check valve body (1) comprises a valve body (102), a round hole (101) is formed in the middle of the valve body (102), and two groups of quick coupling mechanisms (103) are symmetrically arranged at two ends of the valve body (102).

2. The structure of the check valve of a medical drainage tube according to claim 1, wherein: the plugging mechanism (3) comprises a plugging ring (301), the plugging ring (301) is embedded into the inner wall of the valve body (102), sealing rubber (302) is embedded into the plugging ring (301), one side of the sealing rubber (302) is connected with a pressing plate (303), and the pressing plate (303) is connected with a swing arm mechanism (304).

3. The structure of the check valve of a medical drainage tube according to claim 1, wherein: suppress device (4) including extending body (403), extend body (403) one end and round hole (101) port portion and be connected, extend body (403) other end and set up shutoff lid (401), set up link mechanism (402) in extending body (403).

4. The structure of the check valve of a medical drainage tube according to claim 1, wherein: quick-operation joint mechanism (103) include external screw thread (1033), valve body (102) both ends symmetry sets up two sets of external screw thread (1033), adapting pipe (1031) is connected to external screw thread (1033) one side, drainage tube (2) are established to the cover on adapting pipe (1031), external screw thread (1033) spiro union pipe box (1032).

5. The structure of the check valve of a medical drainage tube according to claim 2, wherein: the swing arm mechanism (304) comprises a crank (3043), one end of the crank (3043) is connected with the pressure plate (303), the other end of the crank (3043) penetrates through a rectangular groove formed in the inner wall of the extension pipe body (403) to be connected with a guide pillar (3042), two groups of bearings are symmetrically arranged at two ends of the guide pillar (3042) and are embedded into a supporting seat (3041), and the supporting seat (3041) is connected with the side wall of the extension pipe body (403).

6. The structure of the check valve of a medical drainage tube according to claim 3, wherein: the connecting rod mechanism (402) comprises supports (4022), the supports (4022) are provided with two groups, one group of the supports (4022) is connected with a crank (3043), one group of the supports (4022) is hinged with a sliding rod (4025) through a guide post (3042), the other group of the supports (4022) is connected with the inner wall of an extension pipe body (403), the other group of the supports (4022) is hinged with a sleeve (4024) through a guide post (3042), the sliding rod (4025) is provided with an upright bearing, the upright bearing is embedded into the sleeve (4024), and one end of the sliding rod (4025) penetrates through the upright bearing to be provided with a spring (4023).