CN220938006U

CN220938006U - Leak detection valve

Info

Publication number: CN220938006U
Application number: CN202322205315.7U
Authority: CN
Inventors: 李天宝; 许文华
Original assignee: Zhuhai Megaology Medical Technology Co ltd
Current assignee: Zhuhai Megaology Medical Technology Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-05-14
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses a leak detection valve, comprising: the valve core is provided with a stepped hole; the waterproof breathable film is arranged on the steps of the step holes; the liquid-blocking gasket is in pressure connection with the waterproof breathable film and is provided with a plurality of first through holes; and the valve cap is detachably connected in the stepped hole and used for pressing the liquid-blocking gasket and the waterproof breathable film, the peripheral wall of the valve cap is provided with a second through hole, the second through hole is communicated with the stepped hole, and the second through hole is used for passing through air flow. The leak detection valve consists of a valve cap, a waterproof and breathable film, a liquid blocking gasket and a valve core, wherein a first through hole and a second through hole are respectively arranged on the liquid blocking gasket and the valve cap, and particularly, the plurality of first through holes arranged on the liquid blocking gasket can ensure that gas is unobstructed to the maximum extent to prevent liquid from passing through and liquid is not accumulated on the waterproof and breathable film; therefore, after the endoscope is cleaned, the water stain of the leak detection valve body can be quickly dried without affecting the gas passing.

Description

Leak detection valve

Technical Field

The utility model relates to the technical field of endoscopes, in particular to a leak detection valve.

Background

The endoscope is generally provided with a leak detection valve which is used for inflating the endoscope to detect leaks.

In the past leak detection valve, the gasket that sets up in its case ponds easily and leads to the gas circuit to be unsmooth, still can block up waterproof ventilated membrane after the crystallization of water stain residual dissolving agent to cause leak detection valve result in excellent in use effect.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the leak detection valve, and the porous liquid blocking gasket is arranged, so that the porous liquid blocking gasket and the waterproof breathable film are matched to block the liquid from passing through by utilizing the surface tension of the liquid, and the accumulation of the liquid on the waterproof breathable film is reduced.

According to an embodiment of the first aspect of the present utility model, a leak detection valve includes: the valve core is provided with a stepped hole; the waterproof breathable film is arranged on the steps of the step holes; the liquid-blocking gasket is in pressure connection with the waterproof breathable film, and a plurality of first through holes are formed in the liquid-blocking gasket; the valve cap is detachably connected in the stepped hole, the valve cap is used for pressing the liquid-blocking gasket and the waterproof breathable film, a second through hole is formed in the peripheral wall of the valve cap, the second through hole is communicated with the stepped hole, and the second through hole is used for passing through air flow.

The leak detection valve provided by the embodiment of the utility model has at least the following beneficial effects: the leak detection valve consists of the valve cap, the waterproof and breathable film, the liquid blocking gasket and the valve core, wherein a first through hole and a second through hole are respectively arranged on the liquid blocking gasket and the valve cap, and particularly, the plurality of first through holes arranged on the liquid blocking gasket can ensure that gas is unobstructed to the maximum extent to prevent liquid from passing through and liquid is not accumulated on the waterproof and breathable film; therefore, after the endoscope is cleaned, the quick airing of the water stain of the leakage detection valve body can be ensured without affecting the gas passing; in order to reduce liquid residues on the leak detection valve after the endoscope is cleaned to the greatest extent, so that the dissolving agent is crystallized on the waterproof breathable film, the leak detection valve is soaked in the hydrophobic agent before assembly, the liquid residues on the surface of the valve body can be effectively prevented, and the failure of the leak detection valve is greatly avoided.

According to some embodiments of the utility model, a clamping groove is arranged at one end of the valve bonnet, which is far away from the valve core, and the clamping groove can not only play a role in guiding gas, but also serve as a mouth for inserting a screwdriver so as to facilitate the disassembly of the valve bonnet.

According to some embodiments of the utility model, the end of the bonnet is provided with a chamfer that serves to guide the bonnet into the stepped bore.

According to some embodiments of the utility model, a plurality of clamping blocks are arranged on the inner peripheral wall of the stepped hole around the circumference, the clamping blocks are used for clamping the valve caps, and the arranged clamping blocks ensure that the valve caps are connected in the stepped hole more stably.

According to some embodiments of the utility model, the outer peripheral wall of the valve core is provided with an L-shaped bayonet, the L-shaped bayonet is used for connecting with an inflating nozzle, the L-shaped bayonet plays a role of a rotary buckle, and the L-shaped bayonet can limit the connecting inflating nozzle in the axial direction and ensure the stability of the connecting inflating.

According to some embodiments of the utility model, a sealing ring is embedded on the peripheral wall of the valve core, and the sealing ring is used for externally connecting a handle of the endoscope.

According to some embodiments of the utility model, an external connection buckle structure is arranged at one end of the valve core, which is far away from the valve cap, and the external connection buckle structure ensures the connection stability of the leak detection valve and the endoscope handle, and the sealing ring is matched to achieve the sealing connection effect, so that the subsequent inflation pressure maintaining leak detection of the endoscope is facilitated.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of a leak detection valve according to an embodiment of the present utility model from a perspective;

FIG. 2 is an exploded view of the leak detection valve shown in FIG. 1 from a front perspective;

Fig. 3 is an exploded cross-sectional view of the leak detection valve shown in fig. 1 from a front perspective.

Valve core 100, stepped hole 110, and fixture block 111;

A sealing ring 120, an external connecting buckle structure 130 and an L-shaped bayonet 140;

A waterproof and breathable film 200, a liquid-blocking gasket 300, and a first through hole 310;

A bonnet 400, a second through hole 410, and a clamping groove 420.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a plurality means one or more, and a plurality means two or more, and it is understood that greater than, less than, exceeding, etc. does not include the present number, and it is understood that greater than, less than, within, etc. include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, a leak detection valve includes: a valve body 100 provided with a stepped hole 110; a waterproof and breathable film 200 disposed on the steps of the stepped hole 110; the liquid-blocking gasket 300 is in pressure connection with the waterproof breathable film 200, and a plurality of first through holes 310 are formed in the liquid-blocking gasket 300; the valve cap 400 is detachably coupled in the stepped hole 110, the valve cap 400 is used to press the liquid blocking gasket 300 and the waterproof and breathable film 200, the circumferential wall of the valve cap 400 is provided with a second through hole 410, the second through hole 410 communicates with the stepped hole 110, and the second through hole 410 is used to pass air flow. The leak detection valve consists of a valve cap 400, a waterproof and breathable film, a liquid blocking gasket 300 and a valve core 100, wherein a first through hole 310 and a second through hole 410 are respectively arranged on the liquid blocking gasket 300 and the valve cap 400, and particularly, a plurality of first through holes 310 arranged on the liquid blocking gasket 300 can ensure that gas is unobstructed to the maximum extent to prevent liquid from passing through and liquid is not accumulated on the waterproof and breathable film; therefore, after the endoscope is cleaned, the quick airing of the water stain of the leakage detection valve body can be ensured without affecting the gas passing; in order to reduce the residual liquid on the leak detection valve after the endoscope is cleaned to the greatest extent, so that the dissolving agent is crystallized on the waterproof breathable film 200, the leak detection valve is soaked in the hydrophobic agent before assembly, so that the residual liquid on the surface of the valve body can be effectively prevented, the failure of the leak detection valve is greatly avoided, and based on the two improvements, the leak detection valve can more effectively ensure the internal and external air pressure balance of the endoscope under various scenes and prevent the liquid from entering the endoscope to damage the endoscope. It will be appreciated that prior to installation of the leak-check valve, it is necessary to immerse it in the hydrophobic agent, i.e. to provide the respective surfaces of the leak-check valve with a thin film of hydrophobic agent, so as to avoid the accumulation of droplets of water within the leak-check valve.

In some embodiments, a clamping groove 420 is provided at an end of the valve cap 400 away from the valve core 100, and the clamping groove 420 may serve as a hole for guiding gas, or may be used as a hole for inserting a screwdriver, so that the valve cap 400 is convenient to disassemble, and it is understood that the flat screwdriver may be just inserted into the clamping groove 420. The bonnet 400 may be threadably coupled to the stepped bore 110.

In some embodiments, the end of the bonnet 400 is provided with a chamfer that serves to guide the bonnet 400 into the stepped bore 110, it being understood that both the upper and lower ends of the bonnet 400 are provided with chamfers.

In some embodiments, a plurality of clamping blocks 111 are circumferentially arranged on the inner peripheral wall of the stepped hole 110, the clamping blocks 111 are used for clamping the bonnet 400, and the arranged clamping blocks 111 ensure that the bonnet 400 is connected in the stepped hole 110 more stably.

In some embodiments, the outer peripheral wall of the valve core 100 is provided with an L-shaped bayonet 140, the L-shaped bayonet 140 is used for connecting with an inflating nozzle, the provided L-shaped bayonet 140 plays a role of a rotary buckle, and can limit the connecting inflating nozzle in the axial direction, so that the stability of the connecting inflating is ensured.

In some embodiments, a sealing ring 120 is embedded on the outer peripheral wall of the valve core 100, and the sealing ring 120 is used for externally connecting the handle of the endoscope.

In some embodiments, the end of the valve core 100 away from the valve cap 400 is provided with an external connection buckle structure 130, and the provided external connection buckle structure 130 ensures the connection stability of the leak detection valve and the endoscope handle, and the sealing ring 120 is matched to achieve the sealing connection effect, so that the subsequent inflation pressure maintaining leak detection of the endoscope is facilitated.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A leak detection valve, comprising:

A valve core (100) provided with a stepped hole (110);

a waterproof breathable film (200) arranged on the steps of the step hole (110);

The liquid-blocking gasket (300) is in pressure connection with the waterproof breathable film (200), and a plurality of first through holes (310) are formed in the liquid-blocking gasket (300);

The valve cap (400) is detachably connected in the stepped hole (110), the valve cap (400) is used for pressing the liquid-blocking gasket (300) and the waterproof breathable film (200), a second through hole (410) is formed in the peripheral wall of the valve cap (400), the second through hole (410) is communicated with the stepped hole (110), and the second through hole (410) is used for passing air flow.

2. A leak detection valve as defined in claim 1, wherein: one end of the valve cap (400) far away from the valve core (100) is provided with a clamping groove (420).

3. A leak detection valve as defined in claim 2, wherein: the end of the valve cap (400) is provided with a chamfer.

4. A leak detection valve as defined in claim 1, wherein: a plurality of clamping blocks (111) are arranged on the inner peripheral wall of the stepped hole (110) around the circumference, and the clamping blocks (111) are used for being clamped with the valve cap (400).

5. A leak detection valve as defined in claim 4, wherein: the periphery wall of the valve core (100) is provided with an L-shaped bayonet (140), and the L-shaped bayonet (140) is used for connecting an inflating nozzle.

6. A leak detection valve as defined in claim 5, wherein: a sealing ring (120) is embedded on the peripheral wall of the valve core (100), and the sealing ring (120) is used for externally connecting a handle of an endoscope.

7. A leak detection valve as defined in claim 6, wherein: one end of the valve core (100) far away from the valve cap (400) is provided with an external connection buckle structure (130).