CN219208720U

CN219208720U - Plug-in check valve of high-tightness endoscope

Info

Publication number: CN219208720U
Application number: CN202223348055.0U
Authority: CN
Inventors: 许金平; 郭海晨
Original assignee: Jiangsu Jianyu Health Medical Co ltd
Current assignee: Jiangsu Jianyu Health Medical Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-20
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a plug-and-play check valve of a high-tightness endoscope, which relates to the technical field of check valves and comprises a valve body, wherein an air outlet pipe is inserted into the upper end of the valve body, an air inlet pipe is inserted into the lower end of the valve body, a cylindrical inner cavity is arranged in the valve body, the bottom of the inner cavity is funnel-shaped, a plurality of vent plates are horizontally arranged in the middle of the inner cavity, guide holes are arranged in the middle of the vent plates, a guide rod is connected in a sliding manner in the guide holes, a sealing plug is fixedly connected to the bottom of the guide rod, the sealing plug is conical and matched with the bottom of the inner cavity, a spring is arranged between the sealing plug and the vent plates, and a plurality of air holes are further formed in the vent plates. The check valve has the advantages of simple structure, low manufacturing cost, good sealing performance and certain filtering effect, and meets the use requirement of disposable equipment accessories in medical scenes.

Description

Plug-in check valve of high-tightness endoscope

Technical Field

The utility model relates to the technical field of check valves, in particular to a plug-in check valve of a high-tightness endoscope.

Background

The medical endoscope is provided with a pipeline, and the medical endoscope comprises a perfusion tube which is used for flushing tissue and organs of organisms, secretion or effusion in the tissue and organs often has bacteria or certain corrosiveness, and a check valve is usually needed to be matched with the perfusion tube in order to prevent the secretion or effusion in the tissue and organs from flowing back to cause secondary pollution or damage to equipment and instruments; most of the existing medical check valves have simple structure, low tightness or good tightness but complex structure, high manufacturing cost and high cost for disposable use.

Disclosure of Invention

In order to solve the problems, the utility model provides the following technical scheme:

the utility model provides a high leakproofness endoscope plug-and-play check valve, includes the valve body, the upper end cartridge of valve body has the outlet duct, the lower extreme cartridge of valve body has the intake pipe, be equipped with columniform inner chamber in the valve body, the bottom shape of inner chamber is the infundibulate, the middle part level of inner chamber is equipped with a plurality of vent plates, the vent plate is parallel to each other and with the chamber wall fixed connection of inner chamber, the centre of vent plate is equipped with the guide hole, sliding connection has the guide arm in the guide hole, the bottom fixedly connected with sealing plug of guide arm, the shape of sealing plug is the conical with the bottom matched with of inner chamber, be equipped with the spring between sealing plug and the vent plate, still be equipped with a plurality of gas pockets on the vent plate.

Further, the sealing plug is made of rubber or silica gel.

Further, the length of the guide rod is greater than or equal to the height of the inner cavity.

Further, a spring seat is arranged at the joint of the sealing plug and the guide rod, and the spring is sleeved on the spring seat.

Further, the number of the vent discs is at least two.

Further, the air holes on the plurality of vent discs are aligned up and down, the air holes are uniformly distributed along the circumference of the inner circle, the middle circle and the outer circle on the vent disc, and the air holes are distributed in a staggered way along the radial direction.

Further, the outer edges of the pipe orifices of the air inlet pipe and the air outlet pipe are respectively provided with a chamfer.

The beneficial effects of the utility model are as follows: the check valve has the advantages that the check valve is simple in structure, the manufacturing cost can be reduced, the funnel-shaped cavity is matched with the conical sealing plug, the contact area of the sealing element is increased, the sealing performance is improved, a plurality of air holes are formed in the vent disc, the smooth flow of gas and liquid is ensured, a certain filtering effect can be achieved on some solids, and the use requirement of disposable equipment accessories in medical scenes is met.

Drawings

FIG. 1 is an overall schematic of a check valve of the present utility model;

FIG. 2 is a schematic illustration of the opening of the check valve of the present utility model;

FIG. 3 is a schematic illustration of the closing of the check valve of the present utility model;

FIG. 4 is a schematic view of the check valve assembly of the present utility model;

in the figure: 1. valve body, 2, outlet duct, 3, intake duct, 4, vent disc, 5, guide arm, 6, sealing plug, 7, spring, 11, inner chamber, 41, guide hole, 42, air hole, 71 spring seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1-4, a plug-and-play check valve of high leakproofness endoscope, including valve body 1, the upper end cartridge of valve body 1 has outlet duct 2, the lower extreme cartridge of valve body 1 has intake pipe 3, be equipped with cylindrical inner chamber 11 in the valve body 1, the bottom shape of inner chamber 11 is the infundibulate, the middle part level of inner chamber 11 is equipped with a plurality of vent plates 4, vent plates 4 are parallel to each other and with the chamber wall fixed connection of inner chamber 11, the centre of vent plate 4 is equipped with guide hole 41, sliding connection has guide arm 5 in guide hole 41, the bottom fixedly connected with sealing plug 6 of guide arm 5, sealing plug 6's shape is the conical with the bottom matched with of inner chamber 11, be equipped with spring 7 between sealing plug 6 and the vent plate 4, still be equipped with a plurality of gas pockets 42 on the vent plate 4.

In the embodiment, the inserted parts of the valve body 1, the air outlet pipe 2 and the air inlet pipe 3 are all provided with a buckle structure to prevent the falling off, fluid enters from the air inlet pipe 3, thrust is generated on the sealing plug 6, the spring 7 is compressed, and the valve body is opened at the moment; when fluid enters from the air outlet pipe 2, the bottom of the funnel-shaped inner cavity 11 is matched with the conical sealing plug 6, and the valve body is sealed under the rebound action of the spring 7 to prevent the fluid from flowing backwards; the vent disc 4 is provided with a plurality of air holes 42, so that smooth flow of gas and liquid is ensured, and a certain filtering effect can be achieved on some solids.

The check valve is simple in structure and low in manufacturing cost, the funnel-shaped cavity is matched with the conical sealing plug, the contact area of the sealing element is increased, the sealing performance is improved, and the use requirement of the disposable equipment accessory in a medical scene is met.

Preferably, the sealing plug 6 is made of rubber or silica gel, so that the sealing plug 6 has certain elasticity and improves the sealing effect.

Preferably, the length of the guide rod 5 is greater than or equal to the height of the inner cavity 11, so as to prevent the guide rod from sliding out of the guide hole 41, and ensure that the guide rod 5 and the sealing plug 6 slide up and down stably.

As shown in fig. 4, a spring seat 71 is provided at the connection between the sealing plug 6 and the guide rod 5, and the spring 7 is sleeved on the spring seat 71, so that the spring 7 is fixed more firmly, and the telescoping rebound is smoother.

As shown in fig. 2-3, the number of the ventilation discs 4 is at least two, and the ventilation discs are provided with two guide holes 41, so that the sliding guide of the guide rod 5 can be stabilized.

As shown in fig. 2-3, preferably, the air holes 42 on the plurality of aeration discs 4 are aligned up and down, so that smooth flow of the gas and the liquid is facilitated, the air holes 42 are uniformly distributed along the circumferential directions of the inner circle, the middle circle and the outer circle on the aeration disc 4, and are staggered along the radial directions, so that the flow rates of the gas and the liquid can be more uniform.

As shown in figures 1-2, the outer edges of the pipe orifices of the air inlet pipe 3 and the air outlet pipe 2 are respectively provided with a chamfer, so that the arrangement is convenient to be connected with the infusion pipe in a plugging manner.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "top", "bottom", "transverse", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a high leakproofness endoscope plug-and-play check valve, its characterized in that, including valve body (1), the upper end cartridge of valve body (1) has outlet duct (2), the lower extreme cartridge of valve body (1) has intake pipe (3), be equipped with columniform inner chamber (11) in valve body (1), the bottom shape of inner chamber (11) is the infundibulate, the middle part level of inner chamber (11) is equipped with a plurality of vent-plates (4), vent-plates (4) are parallel to each other and with the chamber wall fixed connection of inner chamber (11), the centre of vent-plate (4) is equipped with guide hole (41), sliding connection has guide arm (5) in guide hole (41), the bottom fixedly connected with sealing plug (6) of guide arm (5), the shape of sealing plug (6) is the conical with the bottom matched with of inner chamber (11), be equipped with spring (7) between sealing plug (6) and the vent-plate (4), still be equipped with a plurality of gas pockets (42) on the vent-plate (4).

2. A high tightness endoscopic plug-and-play check valve according to claim 1, characterized in that the sealing plug (6) is made of a rubber or silicone.

3. A high tightness endoscope plug-and-play check valve according to claim 1, characterized in that the length of the guide rod (5) is equal to or greater than the height of the inner cavity (11).

4. The plug-and-play check valve of the high-tightness endoscope according to claim 1, wherein a spring seat (71) is arranged at the joint of the sealing plug (6) and the guide rod (5), and the spring (7) is sleeved on the spring seat (71).

5. A high tightness endoscopic plug-and-play check valve according to claim 1, characterized in that said number of vent discs (4) is at least two.

6. The plug-and-play check valve of the endoscope with high tightness according to claim 1, wherein the air holes (42) on the plurality of vent discs (4) are aligned up and down, the air holes (42) are uniformly distributed along the circumference of the inner circle, the middle circle and the outer circle on the vent disc (4), and the air holes are staggered along the radial direction.

7. The plug-and-play check valve of the high-tightness endoscope according to claim 1, wherein the outer edges of the nozzles of the air inlet pipe (3) and the air outlet pipe (2) are respectively provided with a chamfer.