CN111156320A - Push type angle valve - Google Patents
Push type angle valve Download PDFInfo
- Publication number
- CN111156320A CN111156320A CN201911374352.2A CN201911374352A CN111156320A CN 111156320 A CN111156320 A CN 111156320A CN 201911374352 A CN201911374352 A CN 201911374352A CN 111156320 A CN111156320 A CN 111156320A
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- China
- Prior art keywords
- sealing
- water
- section
- water inlet
- angle valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
The invention relates to the technical field of angle valves, in particular to a pressing type angle valve. The water inlet pipe comprises a push switch, a pipe body and an ejector rod, wherein the pipe body comprises a water inlet section and a water outlet section which are arranged at a certain included angle, and the water inlet section covers the outer peripheral side of the ejector rod; the water inlet section is internally provided with a ring-shaped element, the ring-shaped element is internally provided with a through hole for the ejector rod to pass through and for communicating the water inlet section with the water outlet section, the water inlet section is internally provided with a sealing element, the sealing element and the press switch are respectively arranged at two sides of the ring-shaped element, and the sealing element is used for being in sealing contact with the annular end surface of the ring-shaped element so as to realize the sealing of the through hole; the ejector rod is used for pushing the sealing element so as to realize the communication between the water inlet section and the water outlet section; an elastic element used for pushing the sealing element to one side of the annular element is further arranged in the water outlet section. By adopting the press type angle valve, the risk of cracking and water leakage of the angle valve is reduced, and the adjustment of the water outlet angle of the angle valve is facilitated.
Description
Technical Field
The invention relates to the technical field of angle valves, in particular to a pressing type angle valve.
Background
Angle valves, also known as angle shut-off valves, are similar in construction to globe valves and differ from globe valves in that the outlet and inlet of the angle valve are at a 90 ° right angle. The angle valve can be divided into a pressing type, a rotating type and the like according to different opening modes. The push type angle valve mainly comprises a push switch and a three-way pipe body connected with the push switch in a sealing mode, a transmission rod is usually arranged in the push switch, a sealing piston is arranged at the end of the transmission rod, a sealing opening in sealing contact with the sealing piston is formed in the valve body, the transmission rod can be driven to move along the axial direction through the push switch, the transmission rod moving axially can drive the sealing piston to move, and therefore sealing contact or separation of the sealing piston and the sealing opening is achieved, and closing or opening of the push type angle valve is achieved.
For example, in chinese utility model patent with publication number CN201475352U, a push type faucet switch is disclosed, which comprises a tube body with a water inlet and a water outlet, wherein the inner wall of the upper part of the tube body is uniformly provided with convex ribs, a guide groove is formed between every two convex ribs, a piston is arranged in the tube body, a piston rod is arranged on the piston, and a sealing sleeve is arranged at the lower part of the piston rod. Through pressing the handle of pressing at the top, pressing the handle and can driving the piston rod and go upward or down, and the piston of piston rod tip can carry out the position switch in the upper and lower both sides of delivery port to realize the intercommunication or the closing of water inlet and delivery port.
However, the existing push type angle valve needs to be adjusted through the water outlet direction of the correction angle valve in the installation process, the water outlet direction of the existing angle valve is mainly adjusted through adjusting the winding turns of the raw adhesive tape, the correction mode enables the angle valve to be often required to be installed for many times in the installation process so as to adjust the water outlet direction, and the quick installation of the angle valve is not facilitated. The thread is worn during the installation attempt, so that the thread is slippery, and the service life of the thread is greatly shortened. In addition, the existing angle valve body can crack when being used for a long time, water flow in the pipeline can spread wantonly from the crack, the risk of water leakage of the angle valve is increased, and the safety performance of the angle valve is poor.
Disclosure of Invention
The invention aims to provide a pressing type angle valve which is used for solving the technical problem of water leakage risk when a pipe body of the angle valve is cracked in the prior art.
In order to achieve the purpose, the invention provides a pressing type angle valve, which adopts the following technical scheme:
a press type angle valve comprises a press switch, a pipe body and an ejector rod, wherein the pipe body comprises a water inlet section and a water outlet section which are arranged at a certain included angle, and the water inlet section covers the outer peripheral side of the ejector rod; the water inlet section is internally provided with a ring-shaped element, the ring-shaped element is internally provided with a through hole for the ejector rod to pass through and for communicating the water inlet section with the water outlet section, the water inlet section is internally provided with a sealing element, the sealing element and the press switch are respectively arranged at two sides of the ring-shaped element, and the sealing element is used for being in sealing contact with the annular end surface of the ring-shaped element so as to realize the sealing of the through hole; the ejector rod is used for pushing the sealing element so as to realize the communication between the water inlet section and the water outlet section; an elastic element used for pushing the sealing element to one side of the annular element is further arranged in the water outlet section.
Further, a plurality of water through holes for water to flow through are formed in the sealing piece and distributed at intervals along the circumferential direction of the sealing piece.
Further, the sealing element comprises a conical barrel section and a straight pipe section, and the outer peripheral wall of the straight pipe section is used for being in guiding contact with the inner wall of the water inlet section.
Furthermore, a sealing ring groove is further arranged on the sealing element, and a sealing ring which is used for being in sealing contact with the end face of the annular piece is embedded in the sealing ring groove.
Furthermore, a circle of inward flanging is arranged on the inner circumferential wall of the through hole, and a sealing plug which is inserted into the through hole and contacts with the inward flanging in a blocking mode is arranged on the sealing element.
Furthermore, be provided with the ladder annular in the play water section, the elastic component centre gripping is spacing between ladder annular and sealing member.
Furthermore, the water inlet section and the water outlet section are arranged in a split mode, the water inlet section is in a circular tube shape, and the water outlet section comprises a rotating sleeve which is sleeved on the periphery side of the water inlet section in a sealing and rotating mode and a water outlet connector which is communicated with the rotating sleeve in an included angle mode.
Furthermore, the water inlet section is arranged in a split mode, the water inlet section comprises a water passing pipe and a water inlet connector in sealing connection with the water passing pipe, the rotating sleeve is sleeved on the outer peripheral side of the water passing pipe in a sealing and rotating mode, and a water outlet hole through which water flows is formed in the water passing pipe.
Furthermore, one end of the ejector rod is fixedly connected with the push switch, and the other end of the ejector rod is used for being in abutting contact with the sealing element.
Further, the outer periphery side of the water outlet section is provided with a decorative cover in a threaded mode.
Compared with the prior art, the push type angle valve provided by the embodiment of the invention has the beneficial effects that: by adopting the press type angle valve, the push rod can be driven by the press switch to push the sealing element by pressing the press switch, so that the through hole is opened, and at the moment, water flowing in from the water inlet section flows out from the water outlet section. When water is not needed, the push switch is pressed again, the ejector rod can lose the pushing effect of the push switch at the moment, the elastic element can apply elastic acting force to the sealing element, and therefore the sealing element is attached to the annular element to be contacted, and the angle valve is closed. Because under the natural state, the sealing member realizes the closing of angle valve through the effect of elastic component, when press switch, the annular member face press switch's part, go out the water section and take place to damage or the fracture, because the sealing member is sealed laminating with the annular member all the time to the risk of angle valve fracture leakage has been avoided.
Furthermore, the water outlet section comprises a rotating sleeve and a water outlet connector, the rotating sleeve is sleeved on the water inlet section in a sealing and rotating mode, and when the water outlet direction needs to be adjusted, the direction of the water outlet connector can be adjusted by rotating the rotating sleeve. Thereby the problem that the angle adjustment can be carried out only by winding the raw rubber belt when the water inlet section and the water outlet section are integrally designed in the prior art is avoided, and the adjustment of the water outlet angle of the angle valve is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of a push type angle valve according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the entire structure of a push type angle valve according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of a water outlet section of the push type angle valve according to the embodiment of the present invention;
FIG. 5 is a schematic sectional view of a water pipe of the press type angle valve of the embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of a seal of a push-in-place angle valve of an embodiment of the present invention.
In the figure, 1-a press switch, 2-a water outlet section, 201-a water outlet connector, 202-a rotating sleeve, 3-a water inlet section, 301-a water passing pipe, 302-a water inlet connector, 303-a step ring groove, 304-a through hole, 305-a water outlet hole, 4-a decorative cover, 5-a top rod, 6-an annular piece, 601-an inward flange, 7-a sealing piece, 701-a sealing ring, 702-a sealing ring groove, 703-a sealing plug, 704-a cone barrel section, 705-a straight pipe section, 706-a water passing hole and 8-an elastic piece.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, a push type angle valve according to a preferred embodiment of the present invention is provided. The pressing type angle valve comprises a pressing switch 1, a pipe body and an ejector rod 5, wherein the pipe body comprises a water inlet section 3 and a water outlet section 2 which are arranged at a certain included angle, and the water inlet section 3 covers the outer peripheral side of the ejector rod 5; a ring-shaped part 6 is arranged in the water inlet section 3, a through hole 304 through which the ejector rod 5 passes and which is used for communicating the water inlet section 3 with the water outlet section 2 is arranged in the ring-shaped part 6, a sealing part 7 is also arranged in the water inlet section 3, the sealing part 7 and the press switch 1 are respectively arranged at two sides of the ring-shaped part 6, and the sealing part 7 is used for being in sealing contact with the annular end surface of the ring-shaped part 6 so as to realize sealing of the through hole 304; the ejector rod 5 is used for pushing the sealing element 7 to realize the communication between the water inlet section 3 and the water outlet section 2; an elastic element 8 used for pushing the sealing element 7 to one side of the annular element 6 is further arranged in the water outlet section 2.
Specifically, push switch 1 includes switch housing and the button of setting in switch housing in this embodiment, still is provided with push rod and rolling disc in the switch housing, through the transmission assembly of meshing dogtooth between push rod and the rolling disc, and ejector pin 5 and rolling disc direction assembly in this embodiment are provided with the blind hole that supplies ejector pin 5 to insert in the rolling disc. It should be noted that, in the present embodiment, the internal structure of the push switch 1 is the same as the mechanical structure in the existing push type ball pen, by pressing the button, the push rod drives the rotating disc to rotate, and the rotating disc can be switched between the upward position and the downward position in the switch housing due to the change of the position of the protruding tooth during the rotation process of the rotating disc, and the rotating disc can push the push rod 5 during the switching process, so as to drive the push rod 5 in the axial direction. Since the push switch 1 is a common structure in the prior art, the detailed operation principle of the push switch is not described in detail in the present embodiment.
In order to realize the through and closing of the water inlet section 3 and the water outlet section 2, in this embodiment, a ring member 6 is disposed in the water passing pipe 301, the ring member 6 is a circle of protrusions disposed on the inner peripheral wall of the water passing pipe 301, in this embodiment, the ring member 6 is integrally disposed on the inner peripheral wall of the water passing pipe 301, and a through hole in the ring member 6 constitutes the through hole 304 in this embodiment. In this embodiment, a sealing member 7 is further disposed in the water inlet section 3, and the push switch 1 and the sealing member 7 are respectively disposed on two sides of the annular member 6. In this embodiment, an elastic member 8 is further installed in the water inlet section 3, the elastic member 8 is specifically a spring, a stepped ring groove 303 is provided in the water inlet joint 302, one end of the elastic member 8 is pressed against the stepped ring groove 303, the other end of the elastic member is pressed against and contacted with the sealing member 7, and the sealing member 7 is enabled to be attached to and in sealing contact with the end surface of the ring-shaped member 6 all the time when the sealing member 7 does not receive the acting force of the ejector rod 5.
In order to enhance the guiding performance of the sealing element 7, the sealing element 7 in this embodiment includes a conical barrel section 704 and a straight pipe section 705, the conical barrel section 704 is in a conical shape, the straight pipe section 705 is in a circular pipe shape, and the conical barrel section 704 and the straight pipe section 705 are integrally arranged, wherein the outer peripheral surface of the straight pipe section 705 can be in contact with the inner peripheral wall of the water inlet section 3, so that the sealing element 7 is ensured to have better guiding performance when moving. In order to facilitate water to flow through the sealing member 7, a plurality of water through holes 706 are further disposed on the sealing member 7 in this embodiment, specifically, each water through hole 706 is disposed on the conical barrel section 704 of the sealing member 7, and each water through hole 706 is rectangular and disposed at equal intervals along the circumferential direction of the conical barrel section 704.
In order to enhance the joint sealing performance of the end faces of the sealing element 7 and the ring-shaped element 6, in this embodiment, a sealing ring groove 702 is further provided on the sealing element 7, specifically, a cylindrical structure is integrally provided at the end with the smaller size of the conical barrel section 704, the sealing ring groove 702 extends along the circumferential direction of the cylindrical structure, a sealing ring 701 is embedded in the sealing ring groove 702, the sealing ring 701 is specifically a rubber ring, and a part of the sealing ring 701 extends out of the sealing ring groove 702, so that when the cylindrical structure is inserted into the through hole 304, the part of the sealing ring 701 extending out of the sealing ring groove 702 and the edge of the orifice of the through hole 304 are mutually jointed and sealed, thereby.
In order to further enhance the sealing performance of the sealing element 7 and the annular element 6, in the present embodiment, a ring of inward flange 601 is provided in the annular element 6, the inward flange 601 is adapted to have a certain inclination toward the annular surface of the sealing element 7, an end of the cylindrical structure is adapted to be inserted into the through hole 304 and stopped by the inward flange 601, and an end of the cylindrical structure inserted into the through hole 304 forms the sealing plug 703 in the present embodiment. In this embodiment, the water pipe 301 is provided with a water outlet 305, and the water outlet 305 is disposed on one side of the ring-shaped member 6 facing the push switch 1.
As shown in fig. 4, in the present embodiment, the water outlet section 2 includes a rotating sleeve 202 and a water outlet connector 201 which are integrally arranged, the rotating sleeve 202 is sleeved on the outer periphery of the water pipe 301 in a sealing and rotating manner, a communication hole is arranged between the rotating sleeve 202 and the water outlet connector 201, and as the water pipe 301 is provided with the water outlet 305, the communication hole is arranged in the water outlet section 2, so that the inner cavity of the water pipe 301 and the water outlet connector 201 are always communicated. In order to realize the sealed and rotatable assembly of the rotating sleeve 202, in this embodiment, two sets of rotary sealing rings are provided between the rotating sleeve and the water pipe 301, the two sets of rotary sealing rings are respectively located at two sides of the water outlet 305, the outer peripheral wall of the water pipe 301 is provided with an inner annular groove for inserting the inner peripheral side of the rotary sealing ring, and the inner peripheral wall of the rotating sleeve 202 is correspondingly provided with an outer annular groove for inserting the outer peripheral side of the rotary sealing ring. The rotary sealing ring is arranged to realize the rotary assembly of the rotary sleeve 202 and the water passing pipe 301 and the sealing of two sides of the water outlet 305 of the water passing pipe 301, so that the condition that water flows from a gap between the rotary sleeve 202 and the water passing pipe 301 is avoided. Other forms of rotary seals between the rotating sleeve and the conduit 301 may be used in other embodiments.
In order to avoid the water from flowing out of the push switch 1, in the present embodiment, a seal ring is also provided on the outer peripheral side of the push rod 5, and the seal ring can seal the annular space between the push rod 5 and the water pipe 301 or the annular space between the push rod 5 and the switch case. In this embodiment, the decorative cover 4 is further screwed to the outer peripheral side of the water inlet joint 302, and the decorative cover 4 can cover the water inlet joint 302, thereby improving the beautifying effect of the home decoration.
The working process of the invention is as follows: the installation of push type angle valve is accomplished at first, after the installation, can realize going out the adjustment of water direction through rotating water connector 201, then presses the button, and push rod 5 in the push switch 1 can push away sealing member 7 to realize the separation of sealing member 7 and loop forming element 6 terminal surface, water can be followed water connector 201 and flowed out like this. After the use, the push button is pressed again, at this time, the ejector rod 5 loses the pushing action towards the sealing element 7, and the sealing element 7 is attached to the end surface of the annular element 6 under the action of the elastic element 8, so that the through hole 304 is sealed.
In summary, the embodiment of the present invention provides a press type angle valve, which avoids the risk of cracking and water leakage of the angle valve because the sealing member 7 is always in sealing contact with the ring member 6 when the press switch 1, the part of the ring member 6 facing the press switch 1, and the water outlet section 2 are damaged or cracked. In addition, when the water outlet direction needs to be adjusted, the direction of the water outlet joint 201 can be adjusted by rotating the rotary sleeve 202. Thereby the problem that the angle adjustment can be carried out only by winding the raw rubber belt when the water inlet section 3 and the water outlet section 2 are integrally designed in the prior art is avoided, and the adjustment of the water outlet angle of the angle valve is facilitated.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a push type angle valve, includes push switch (1), body and ejector pin (5), its characterized in that: the pipe body comprises a water inlet section (3) and a water outlet section (2) which are arranged at a certain included angle, and the water inlet section (3) covers the outer peripheral side of the ejector rod (5); a ring-shaped part (6) is arranged in the water inlet section (3), a through hole (304) for a mandril (5) to penetrate through and for communicating the water inlet section (3) with the water outlet section (2) is formed in the ring-shaped part (6), a sealing part (7) is further arranged in the water inlet section (3), the sealing part (7) and the press switch (1) are respectively arranged on two sides of the ring-shaped part (6), and the sealing part (7) is used for being in sealing contact with the annular end face of the ring-shaped part (6) so as to seal the through hole (304); the ejector rod (5) is used for pushing the sealing element (7) so as to realize the communication between the water inlet section (3) and the water outlet section (2); an elastic element (8) used for pushing the sealing element (7) to one side of the annular element (6) is further arranged in the water outlet section (2).
2. The push type angle valve of claim 1, wherein: the sealing element (7) is provided with a plurality of water passing holes (706) for water to flow through, and the water passing holes (706) are distributed at intervals along the circumferential direction of the sealing element (7).
3. The push type angle valve of claim 2, wherein: the sealing element (7) comprises a conical barrel section (704) and a straight pipe section (705), and the outer peripheral wall of the straight pipe section (705) is used for being in guiding contact with the inner wall of the water inlet section (3).
4. The push type angle valve of claim 2, wherein: still be provided with on sealing member (7) seal ring groove (702), embedded sealing washer (701) that are used for with the terminal surface sealing contact of loop forming element (6) of being equipped with in seal ring groove (702).
5. The push type angle valve of claim 4, wherein: the inner circumferential wall of the through hole (304) is provided with a circle of inward flanging (601), and the sealing piece (7) is provided with a sealing plug (703) which is inserted into the through hole (304) and contacted with the inward flanging (601) in a blocking way.
6. The push type angle valve of claim 1, wherein: be provided with ladder annular (303) in play water section (2), elastic component (8) centre gripping is spacing between ladder annular (303) and sealing member (7).
7. The push type angle valve of claim 1, wherein: the water inlet section (3) and the water outlet section (2) are arranged in a split mode, the water inlet section (3) is in a circular tube shape, and the water outlet section (2) comprises a rotating sleeve (202) which is sealed and arranged on the outer peripheral side of the water inlet section (3) in a rotating mode and a water outlet connector (201) which is communicated with the rotating sleeve (202) in an included angle mode.
8. The push type angle valve of claim 7, wherein: the section of intaking (3) components of a whole that can function independently sets up, intake section (3) including water pipe (301) and with water pipe (301) sealing connection's water supply connector (302), rotate sleeve pipe (202) sealed rotation cover and establish the periphery side at water pipe (301), be provided with apopore (305) that supply water to flow through on water pipe (301).
9. The push type angle valve of claim 1, wherein: one end of the ejector rod (5) is fixedly connected with the push switch (1), and the other end of the ejector rod is used for being in abutting contact with the sealing element (7).
10. The push type angle valve of claim 1, wherein: the outer periphery of the water outlet section (2) is provided with a decorative cover (4) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374352.2A CN111156320A (en) | 2019-12-26 | 2019-12-26 | Push type angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374352.2A CN111156320A (en) | 2019-12-26 | 2019-12-26 | Push type angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156320A true CN111156320A (en) | 2020-05-15 |
Family
ID=70556902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911374352.2A Pending CN111156320A (en) | 2019-12-26 | 2019-12-26 | Push type angle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111156320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687493A (en) * | 2023-06-21 | 2023-09-05 | 济宁医学院 | Liver gate blocking device under laparoscope |
-
2019
- 2019-12-26 CN CN201911374352.2A patent/CN111156320A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687493A (en) * | 2023-06-21 | 2023-09-05 | 济宁医学院 | Liver gate blocking device under laparoscope |
| CN116687493B (en) * | 2023-06-21 | 2024-03-19 | 济宁医学院 | Liver gate blocking device under laparoscope |
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