CN219048362U - Leak detection valve easy to replace on endoscope - Google Patents
Leak detection valve easy to replace on endoscope Download PDFInfo
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- CN219048362U CN219048362U CN202123240998.7U CN202123240998U CN219048362U CN 219048362 U CN219048362 U CN 219048362U CN 202123240998 U CN202123240998 U CN 202123240998U CN 219048362 U CN219048362 U CN 219048362U
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- endoscope
- valve core
- waterproof
- leak detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a leak detection valve which is easy to replace on an endoscope, and is used for a handle cover of the endoscope, comprising: the valve core is detachably connected with the handle cover and is provided with an air passage which is used for communicating the inner side and the outer side of the handle cover; the first waterproof and breathable film is arranged on the valve core and is used for covering the air passage; the valve bonnet can be dismantled and connect the case, and the open end of valve bonnet is used for pushing down first waterproof ventilated membrane, and the perisporium of valve bonnet is provided with the opening, and the inner chamber of opening intercommunication valve bonnet, opening are used for through the air current. The valve bonnet can be detached to connect the valve core, and the first waterproof breathable film is arranged on the valve core, so that after the valve bonnet is detached, the first waterproof breathable film can be replaced, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of leak detection valves of endoscopes, in particular to a leak detection valve which is easy to replace on an endoscope.
Background
The handle of the endoscope is generally provided with a leakage detection valve, the leakage detection valve is specifically arranged on the handle cover, and when the endoscope is used, the leakage detection valve is used for inflating and maintaining pressure in the endoscope, and the pressure change is observed to achieve the leakage detection effect.
The prior leak detection valve comprises a valve body and a valve core, wherein the valve body is detachably connected with a handle cover, the valve core is non-detachable, and a waterproof and breathable film is embedded in the valve core, so that external moisture is prevented from entering an endoscope when the valve is inflated, however, in the use process of the endoscope, the valve core and the waterproof and breathable film of the leak detection valve are easily blocked by dirt, and when the valve core is replaced, the whole leak detection valve can be replaced, so that the cost is high, and the use is inconvenient; in addition, after the use is completed, one surface of the waterproof breathable film, which is close to an external space, can be wetted, and the waterproof breathable film is easy to corrode for a long time, so that the service life of the leak detection valve is reduced.
Disclosure of Invention
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 leakage detection valve which is easy to replace on the endoscope, the valve core can be detached, the valve core is additionally detachably connected with the valve cap, the first waterproof breathable film is arranged between the valve core and the valve cap and can be replaced, the cost is saved, and the valve cap is provided with the opening so as to facilitate the use of the waterproof breathable film to be dried later.
An embodiment of the utility model provides an easily replaceable leak detection valve for an endoscope, a handle cover for an endoscope, comprising: the valve core is detachably connected with the handle cover and is provided with an air passage which is used for communicating the inner side and the outer side of the handle cover; the first waterproof and breathable film is arranged on the valve core and is used for covering the air passage; the valve bonnet is detachably connected with the valve core, the opening end of the valve bonnet is used for pressing the first waterproof breathable film, the peripheral wall of the valve bonnet is provided with an opening, the opening is communicated with the inner cavity of the valve bonnet, and the opening is used for passing through air flow.
According to the embodiment of the utility model, the leak detection valve easy to replace on the endoscope has at least the following beneficial effects: the valve cap is detachably connected with the valve core, and the first waterproof and breathable film is arranged on the valve core, so that after the valve cap is detached, the first waterproof and breathable film can be replaced, and the cost is saved; the opening is arranged on the peripheral wall of the valve cap, and because the opening is arranged on the peripheral wall of the valve cap, wind entering from the opening passes through the upper end surface of the first waterproof breathable film and can take away the moisture of the upper end surface of the first waterproof breathable film, so that the first waterproof breathable film is kept dry; in addition, because the valve core is detachably connected with the handle cover, the valve core can be integrally replaced, so that the original integral replacement function is reserved, the function of replacing only the first waterproof and breathable film is newly added, and the valve core is convenient to apply to various endoscopes; when the valve core is detached, the valve core is replaced integrally, and the first waterproof and breathable film can be replaced without professional staff; when the bonnet is removed, a practitioner can replace the first waterproof and breathable membrane.
According to some embodiments of the utility model, the closed end of the valve cap is provided with a guide convex part which protrudes towards the inner cavity of the valve cap, the guide convex part is used for guiding air flow to pass through the surface of the first waterproof ventilated membrane, the guide convex part can prevent the air flow from traveling in a straight line, and the air flow can flow downwards when encountering the guide convex part, so that the air flow can pass through the upper end surface of the first waterproof ventilated membrane, and the moisture of the first waterproof ventilated membrane can be taken away more easily.
According to some embodiments of the utility model, a guiding chamfer is arranged at one end of the guiding convex part, which is close to the first waterproof and breathable film, and the guiding chamfer is arranged to guide the airflow to flow conveniently, so that the airflow is prevented from being blocked to rebound.
According to some embodiments of the utility model, an installation cavity is arranged at one end of the valve core, which is far away from the handle cover, the installation cavity is communicated with the air passage, the inner diameter of the installation cavity is larger than that of the air passage, a plurality of first clamping blocks are arranged on the inner peripheral wall of the installation cavity, the first clamping blocks are in one-to-one correspondence with the openings, the first clamping blocks are used for clamping in the openings, the valve cap is in clamping connection with the valve core, and the valve cap is simple in connection structure and easy to detach; the opening not only can play a role in connecting the buckle, but also can play a role in air intake, and the application range is wider.
According to some embodiments of the utility model, the first waterproof and breathable membrane is embedded in the installation cavity, a buffer gasket is further embedded in the installation cavity, the buffer gasket is pressed on the first waterproof and breathable membrane, the open end of the valve cap is used for pressing the buffer gasket, and the buffer gasket is arranged to prevent the valve cap from pressing the first waterproof and breathable membrane.
According to some embodiments of the utility model, the valve core is further provided with a buffer cavity, the buffer cavity is arranged at the lower end of the installation cavity, the inner diameter of the buffer cavity is larger than that of the air channel, the inner diameter of the installation cavity is larger than that of the buffer cavity, and the buffer cavity is used for buffering air pressure to protect the first waterproof and breathable film and prevent air flow in the endoscope from returning to damage the first waterproof and breathable film.
According to some embodiments of the utility model, the handle cover is provided with a sleeve, the inner wall of the sleeve is provided with a plurality of second clamping blocks, a tripping gap is arranged between two adjacent second clamping blocks, the peripheral wall of the valve core is provided with third clamping blocks, the third clamping blocks are in one-to-one correspondence with the second clamping blocks, the second clamping blocks are used for buckling the third clamping blocks, the third clamping blocks are in rotary clamping connection with the second clamping blocks, and the unlocking and the locking are convenient.
According to some embodiments of the utility model, the inner peripheral wall of the sleeve is provided with a conical surface, the outer peripheral wall of the valve core is embedded with a sealing ring, the sealing ring is used for being matched with the conical surface to seal the joint of the valve core and the sleeve, the conical surface is in interference fit with the sealing ring, and as the valve core sinks, the sealing ring is matched with the conical surface more tightly, and the sealing is more stable.
According to some embodiments of the utility model, the outer peripheral wall of the valve core is further provided with an external connection bayonet, the external connection bayonet is used for an external connection tool to unlock the valve core, and the external connection bayonet is arranged to facilitate connection of the tool to remove the valve core, so that the trouble of manual screwing is avoided.
According to some embodiments of the utility model, an external connection limiting shaft is arranged on the peripheral wall of the sleeve, and the external connection limiting shaft is externally connected with the barometer to prevent the barometer from rotating under the influence of external force.
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 a schematic view of an embodiment of the utility model in which a leak detection valve that is easily replaceable on an endoscope is mounted on a handle cover;
FIG. 2 is an exploded view of the easily replaceable leak detection valve of the endoscope shown in FIG. 1;
fig. 3 is a perspective cross-sectional view of the easily replaceable leak detection valve of the endoscope shown in fig. 1.
The handle cover 100, the sleeve 110, the second clamping block 111, the unbuckling gap 112, the conical surface 113 and the externally connected limiting shaft 114;
the valve comprises a valve core 200, an air passage 210, a mounting cavity 220, a first clamping block 221, a buffer gasket 222, a buffer cavity 230, a third clamping block 240, a sealing ring 250 and an external connection bayonet 260;
a first waterproof and breathable film 300, a second waterproof and breathable film 310;
a bonnet 400, an opening 410, a guide protrusion 420, and a guide chamfer 421.
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 which is easily replaced on an endoscope, a handle cover 100 for an endoscope, comprising: the valve core 200 is detachably connected with the handle cover 100, the valve core 200 is provided with an air passage 210, and the air passage 210 is used for communicating the inner side and the outer side of the handle cover 100; a first waterproof and breathable film 300 disposed on the valve core 200, the first waterproof and breathable film 300 being used for covering the air passage 210; the valve cap 400 is detachably connected with the valve core 200, the opening end of the valve cap 400 is used for pressing the first waterproof and breathable film 300, the peripheral wall of the valve cap 400 is provided with an opening 410, the opening 410 is communicated with the inner cavity of the valve cap 400, and the opening 410 is used for passing air flow. The valve cap 400 is detachably connected with the valve core 200, and the first waterproof and breathable film 300 is arranged on the valve core 200, so that after the valve cap 400 is detached, the first waterproof and breathable film 300 can be replaced, and the cost is saved; an opening 410 is provided in the circumferential wall of the bonnet 400, and since the opening 410 is provided in the circumferential wall of the bonnet 400, wind entering from the opening 410 passes through the upper end surface of the first waterproof and breathable film 300, and can carry away moisture from the upper end surface of the first waterproof and breathable film 300, so that the first waterproof and breathable film 300 is kept dry; in addition, because the valve core 200 is detachably connected with the handle cover 100, the valve core 200 can be replaced integrally, so that the original integral replacement function is reserved, the function of replacing only the first waterproof and breathable film 300 is added, and the valve core is convenient to apply to various endoscopes; when the valve core 200 is disassembled, the first waterproof and breathable film 300 can be replaced integrally without a professional; when the bonnet 400 is removed, a practitioner may replace the first waterproof and breathable membrane 300.
In some embodiments, the closed end of the valve cap 400 is provided with a guide convex part 420, the guide convex part 420 protrudes towards the inner cavity of the valve cap 400, the guide convex part 420 is used for guiding the air flow to pass through the surface of the first waterproof and breathable film 300, the guide convex part 420 can block the air flow to linearly travel, and the air flow can flow downwards when encountering the guide convex part 420, so that the air flow can pass through the upper end surface of the first waterproof and breathable film 300 and the moisture of the first waterproof and breathable film 300 is more easily taken away; it will be appreciated that the axis of the guide protrusion 420 is the same as the axis of the bonnet 400, and that the mounting cavity 220, the buffer cavity 230 and the air passage 210 are all the same as the axis of the bonnet 400, and that the mounting cavity 220, the buffer cavity 230 and the air passage 210 are disposed in this order from top to bottom, the guide protrusion 420 extends downward along its axis, and the guide protrusion 420 can block the air flow inputted from the opening 410 in the horizontal direction, i.e., the protrusion of the guide protrusion 420 can block or partially block the extending space of the opening 410 in the horizontal direction.
In some embodiments, the end of the guiding protrusion 420 near the first waterproof and breathable film 300 is provided with a guiding chamfer 421, and the guiding chamfer 421 is provided to guide the airflow direction conveniently, so as to avoid the airflow from being blocked and rebounded, and in some embodiments, the guiding chamfer 421 may be replaced by a round corner.
In some embodiments, an installation cavity 220 is arranged at one end of the valve core 200, which is far away from the handle cover 100, the installation cavity 220 is communicated with the air channel 210, the inner diameter of the installation cavity 220 is larger than the inner diameter of the air channel 210, a plurality of first clamping blocks 221 are arranged on the inner peripheral wall of the installation cavity 220, the first clamping blocks 221 are in one-to-one correspondence with the openings 410, the first clamping blocks 221 are used for clamping into the openings 410, and the valve cap 400 is in snap connection with the valve core 200; the opening 410 can play a role of connecting the buckle, can play a role of air inlet, and has wider application range; it will be appreciated that the length of the opening 410 in the vertical direction is greater than the thickness of the first fixture block 221, and that the first fixture block 221 may also fall into the opening 410 when the open end of the bonnet 400 contacts the step between the mounting cavity 220 and the buffer cavity 230, but the remaining length of the opening 410 may still be in communication with the outside and the interior cavity of the bonnet 400.
In some embodiments, the first waterproof and breathable membrane 300 is embedded in the installation cavity 220, and the installation cavity 220 is further embedded with a buffer gasket 222, the buffer gasket 222 presses on the first waterproof and breathable membrane 300, the open end of the valve cap 400 is used for pressing the buffer gasket 222, and the buffer gasket 222 is provided to avoid the valve cap 400 from crushing the first waterproof and breathable membrane 300, it is understood that the buffer gasket 222 may be a silica gel gasket or a plastic gasket.
In some embodiments, the valve core 200 is further provided with a buffer cavity 230, the buffer cavity 230 is disposed at the lower end of the mounting cavity 220, the inner diameter of the buffer cavity 230 is larger than the inner diameter of the air channel 210, the inner diameter of the mounting cavity 220 is larger than the inner diameter of the buffer cavity 230, the buffer cavity 230 is used for buffering air pressure to protect the first waterproof and breathable membrane 300, the air flow in the endoscope is prevented from returning to damage the first waterproof and breathable membrane 300, it is understood that steps are formed between the mounting cavity 220 and the buffer cavity 230 and between the buffer cavity 230 and the air channel 210 because the inner diameters of the mounting cavity 220, the buffer cavity 230 and the air channel 210 are changed stepwise, the first waterproof and breathable membrane 300 is disposed on the step between the mounting cavity 220 and the buffer cavity 230, the buffer gasket 222 is pressed on the first waterproof and breathable membrane 300, the opening end of the valve cap 400 is pressed on the buffer gasket 222, at this time, the first clamping block 221 can also fall into the opening 410, and the remaining length of the opening 410 can still be communicated with the outside and the inner cavity of the valve cap 400.
In some embodiments, the handle cover 100 is provided with a sleeve 110, the inner wall of the sleeve 110 is provided with a plurality of second clamping blocks 111, a tripping gap 112 is formed between two adjacent second clamping blocks 111, the outer peripheral wall of the valve core 200 is provided with third clamping blocks 240, the third clamping blocks 240 are in one-to-one correspondence with the second clamping blocks 111, the second clamping blocks 111 are used for buckling the third clamping blocks 240, the third clamping blocks 240 are in rotary clamping connection with the second clamping blocks 111, and the unlocking and locking are convenient.
In some embodiments, the inner peripheral wall of the sleeve 110 is provided with a conical surface 113, the outer peripheral wall of the valve core 200 is embedded with a sealing ring 250, the sealing ring 250 is used for matching with the conical surface 113 to seal the joint of the valve core 200 and the sleeve 110, the conical surface 113 is in interference fit with the sealing ring 250, and as the valve core 200 sinks, the sealing ring 250 is matched with the conical surface 113 more tightly, and the sealing is more stable.
In some embodiments, the outer peripheral wall of the valve core 200 is further provided with an external connection bayonet 260, the external connection bayonet 260 is used for connecting a tool to unlock the valve core 200, and the external connection bayonet 260 is arranged to facilitate connecting the tool to remove the valve core 200, so that the trouble of manual screwing is avoided; it will be appreciated that the externally connected bayonet 260 includes an L-shaped bayonet and a generally square bayonet, the L-shaped bayonet is used for providing a rotational locking, so that the tool is prevented from being axially separated from the valve core 200, the square bayonet and the L-shaped bayonet can both provide a fulcrum, so that the valve core 200 can be rotated by applying a force along a tangential direction of the valve core 200, thereby separating the third clamping block 240 from the second clamping block 111 and aligning the trip gap 112, and at this time, the valve core 200 can be pulled out at any time due to an axial limiting effect of the L-shaped bayonet.
In some embodiments, the outer peripheral wall of the sleeve 110 is provided with an outer connecting limiting shaft 114, and the outer connecting limiting shaft 114 is connected with the barometer, so that the barometer is prevented from rotating under the influence of external force.
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 (10)
1. An easy-to-replace leak detection valve on an endoscope, a handle cover for the endoscope, comprising:
the valve core is detachably connected with the handle cover and is provided with an air passage which is used for communicating the inner side and the outer side of the handle cover;
the first waterproof and breathable film is arranged on the valve core and is used for covering the air passage;
the valve bonnet is detachably connected with the valve core, the opening end of the valve bonnet is used for pressing the first waterproof breathable film, the peripheral wall of the valve bonnet is provided with an opening, the opening is communicated with the inner cavity of the valve bonnet, and the opening is used for passing through air flow.
2. The easily replaceable leak detection valve for an endoscope as defined in claim 1, wherein: the blind end of the bonnet is provided with a guide protrusion protruding toward the interior cavity of the bonnet, the guide protrusion being for guiding an airflow past the surface of the first waterproof and breathable membrane.
3. The easily replaceable leak detection valve for an endoscope according to claim 2, wherein: and one end of the guide convex part, which is close to the first waterproof and breathable film, is provided with a guide chamfer.
4. The easily replaceable leak detection valve for an endoscope as defined in claim 1, wherein: the valve core is kept away from the one end of handle lid is provided with the installation cavity, the installation cavity intercommunication the air flue, the internal diameter of installation cavity is greater than the internal diameter of air flue, the inner peripheral wall of installation cavity is provided with a plurality of first fixture blocks, first fixture block with opening one-to-one, first fixture block is used for the card to go into the opening.
5. The easily replaceable leak-detection valve for an endoscope as defined in claim 4, wherein: the first waterproof and breathable film is embedded in the installation cavity, a buffer gasket is further embedded in the installation cavity, the buffer gasket is pressed on the first waterproof and breathable film, and the open end of the valve cap is used for pressing the buffer gasket.
6. The easily replaceable leak detection valve for an endoscope as defined in claim 5, wherein: the valve core is further provided with a buffer cavity, the buffer cavity is arranged at the lower end of the installation cavity, the inner diameter of the buffer cavity is larger than that of the air passage, and the inner diameter of the installation cavity is larger than that of the buffer cavity.
7. An easily replaceable leak-detecting valve for an endoscope according to any of claims 1 to 6 and wherein: the handle cover is provided with a sleeve, the inner wall of the sleeve is provided with a plurality of second clamping blocks, a tripping gap is formed between every two adjacent second clamping blocks, a third clamping block is arranged on the peripheral wall of the valve core and corresponds to the second clamping blocks one by one, and the second clamping blocks are used for being buckled with the third clamping blocks.
8. The easily replaceable leak detection valve for an endoscope as set forth in claim 7, wherein: the inner peripheral wall of the sleeve is provided with a conical surface, the outer peripheral wall of the valve core is embedded with a sealing ring, and the sealing ring is used for matching with the conical surface to seal the joint of the valve core and the sleeve.
9. The easily replaceable leak detection valve for an endoscope as set forth in claim 7, wherein: the outer peripheral wall of the valve core is also provided with an outer connecting bayonet which is used for connecting a tool to unlock the valve core.
10. The easily replaceable leak detection valve for an endoscope as set forth in claim 7, wherein: the outer peripheral wall of the sleeve is provided with an outer connecting limiting shaft, and the outer connecting limiting shaft is externally connected with a barometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123240998.7U CN219048362U (en) | 2021-12-21 | 2021-12-21 | Leak detection valve easy to replace on endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123240998.7U CN219048362U (en) | 2021-12-21 | 2021-12-21 | Leak detection valve easy to replace on endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219048362U true CN219048362U (en) | 2023-05-23 |
Family
ID=86369090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123240998.7U Active CN219048362U (en) | 2021-12-21 | 2021-12-21 | Leak detection valve easy to replace on endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219048362U (en) |
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2021
- 2021-12-21 CN CN202123240998.7U patent/CN219048362U/en active Active
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