CN218075858U - Negative pressure drainage device with push type check valve - Google Patents
Negative pressure drainage device with push type check valve Download PDFInfo
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- CN218075858U CN218075858U CN202221483923.3U CN202221483923U CN218075858U CN 218075858 U CN218075858 U CN 218075858U CN 202221483923 U CN202221483923 U CN 202221483923U CN 218075858 U CN218075858 U CN 218075858U
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Abstract
The utility model belongs to the technical field of negative pressure drainage, concretely relates to negative pressure drainage device with push type check valve, including the end cap, the end cap is the push type check valve, and the push type check valve includes button, valve body, sealing washer, reset spring, and the button includes the cylindric structure at top, the inverted bucket column structure and the connecting rod of bottom, and the connecting rod passes the through-hole of valve body, and the inverted bucket column structure sets up in the through-hole of valve body, and the inverted bucket column structure cup joints the sealing washer, and the sealing washer contacts cyclic annular baffle, and the cyclic annular baffle sets up on the inverted bucket column structure; a gap is formed between the annular baffle and the valve body, the size of the sealing ring is the same as that of the annular baffle, and the outer diameter of the annular baffle is larger than that of the through hole in the top of the valve body; the reverse barrel-shaped structure is internally provided with a return spring, and the sum of the heights of the connecting rod and the reverse barrel-shaped structure is greater than the sum of the heights of the through holes in the top and the middle part of the valve body.
Description
Technical Field
The utility model belongs to the technical field of the negative pressure drainage, concretely relates to negative pressure drainage device with push type check valve.
Background
The negative pressure suction device is often needed to be used after the surgical operation, and is used for draining in vivo or effusion such as blood, pus, flushing fluid and the like of the wound out of the body and discharging the effusion in time, thereby promoting the healing of the wound surface and reducing the infection risk after the surgical operation.
The existing plug on the negative pressure drainage device needs to be manually installed at a negative pressure outlet and manually removed, and the plug is easy to pop out when in use, so that the pressure leaks, the negative pressure state is influenced, the use of the negative pressure drainage device is influenced, meanwhile, the negative pressure state is reduced or disappeared, so that liquid sucked into the negative pressure drainage device flows back to cause pollution, and the plug needs to be manually installed after being popped out; and current drainage bag is bloated easily, influences liquid and flows into the drainage bag from negative pressure drainage container, and the bloated damage that causes the drainage bag easily simultaneously.
SUMMERY OF THE UTILITY MODEL
To the technical problem that exists at present, the utility model provides a pair of negative pressure drainage device with push type check valve, the end cap that uses among the device is the push type check valve, effectively prevents the condition that the end cap popped out when using, opens, closes the convenience, has improved the leakproofness, and sets up filtration membrane, effectively prevents the bloated gas of drainage bag, has improved the security performance.
The technical scheme of the utility model is specifically as follows:
a negative pressure drainage device with a pressing type check valve comprises a negative pressure drainage container, a drainage bag and a connecting neck, wherein the top end of the negative pressure drainage container is connected with the connecting neck, the bottom of the negative pressure drainage container is connected with the drainage bag, a negative pressure opening is formed in the connecting neck, a plug is arranged in the negative pressure opening, the plug is the pressing type check valve, the pressing type check valve is fixedly connected with the negative pressure opening and comprises a button, a valve body, a sealing ring and a reset spring, the valve body is of a cylindrical structure, and a through hole is formed in the valve body; the button comprises a cylindrical structure at the top, a reversed barrel-shaped structure at the bottom and a connecting rod in the middle, the cylindrical structure and the reversed barrel-shaped structure are connected through the connecting rod, the connecting rod penetrates through a through hole in the top of the valve body, the reversed barrel-shaped structure is arranged in the through hole in the middle of the valve body, the diameter of the bottom of the reversed barrel-shaped structure is larger than that of the through hole in the bottom of the valve body, and the height of the reversed barrel-shaped structure is smaller than that of the through hole in the middle of the valve body; the height of the connecting rod is greater than that of the through hole in the top of the valve body; the top of the inverted bucket-shaped structure is sleeved with a sealing ring, the sealing ring is in contact with an annular baffle, and the annular baffle is arranged on the outer wall of the inverted bucket-shaped structure; a gap is formed between the annular baffle and the inner wall of the through hole in the middle part of the valve body, a gap is formed between the sealing ring and the inner wall of the through hole in the middle part of the valve body, and the outer diameters of the annular baffle and the sealing ring are both larger than the diameter of the through hole in the top part of the valve body; a return spring is arranged in the inverted barrel-shaped structure, one end of the return spring is contacted with the inverted barrel-shaped structure, and the other end of the return spring is contacted with the inner wall of the through hole of the valve body; the sum of the heights of the connecting rod of the button and the inverted bucket-shaped structure is larger than the sum of the heights of the through hole in the top part and the through hole in the middle part of the valve body.
Preferably, the diameter of the through hole in the middle part of the valve body is larger than that of the through hole in the top part of the valve body, and the diameter of the through hole in the middle part of the valve body is larger than that of the through hole in the bottom part of the valve body.
Preferably, the outer diameter of the sealing ring is the same as the outer diameter of the annular baffle.
Preferably, the tip of the valve body includes a flat portion and a protruding portion. Further preferably, the distance between the protruding portion of the top end of the valve body and the lowest point of the through hole in the middle portion of the valve body is equal to the sum of the height of the connecting rod of the push button and the height of the inverted bucket-shaped structure.
Preferably, at least two air holes are arranged on the side wall of the inverted bucket-shaped structure, so that air can be conveniently discharged.
Preferably, the diameter of the cylindrical structure at the top of the button is larger than that of the through hole in the top of the valve body, and the diameter of the cylindrical structure at the top of the button is smaller than that of the top end of the valve body, so that the press control is convenient.
Preferably, reset spring is compression state, and push type check valve is when closing, opening, and reset spring all is in compression state, more is favorable to improving the leakproofness, does benefit to the convenient operation of closing, opening simultaneously.
Preferably, the drainage bag is provided with an air permeable filter membrane which can only pass air and can not pass liquid.
Preferably, the outer diameter of the return spring is larger than the diameter of the bottom inner through hole of the valve body.
The utility model discloses in install the push type check valve in the negative pressure exit, when the open state of push type check valve, when pressing the button downwards promptly, because be provided with reset spring in the obforms structure of button, can make the button downstream, until the obforms structure contact valve body's of button on the through-hole inner wall, at this moment, the sealing washer is not contacted with valve body's through-hole inner wall, when negative pressure drainage container is extruded, air in the negative pressure drainage container passes through valve body bottom inner through-hole entering valve body's intermediate part through-hole, through the annular baffle, the space of the intermediate part through-hole inner wall of sealing washer and valve body, the space of valve body top inner through-hole and connecting rod, outside the negative pressure drainage container of discharging, loose the button, the push type check valve closes, because reset spring is in the pressurized state, receive reset spring's elastic force, make the obforms structure of button up-motion, the obforms structure drives the annular baffle up-motion, the sealing washer receives the effect of annular baffle, the sealing washer closely abuts the through-hole inner wall of valve body, air can not pass through-hole of valve body through-hole, the sealing washer closely, the difficult maintenance of the circulation of negative pressure state appears; the drainage bag is provided with the breathable filtering membrane, so that air can be discharged, liquid cannot be discharged, air in the drainage bag is discharged in time, and the drainage bag is prevented from being inflated.
The utility model uses the pressing type one-way valve to replace the traditional manual plug structure, effectively prevents the situation that the plug pops out when in use, so that the operation is simpler, the sealing performance is better, the filtering membrane is arranged, the flatulence of the drainage bag is effectively prevented, the liquid in the negative pressure drainage container is ensured to smoothly flow into the drainage bag, and the safety of the drainage bag is ensured; the device simple structure, convenient operation has good leakproofness, and higher security can experience for clinical medical personnel provide more convenient and fast's use, has improved nursing efficiency greatly.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the structure of the middle negative pressure drainage container and the connecting neck of the present invention;
fig. 3 is a schematic structural view of the push-type check valve of the present invention when closed;
fig. 4 is a schematic structural view of the push-type check valve of the present invention when it is opened;
in the figure, 1 is a negative pressure drainage container, 2 is a gland, 3 is a press type one-way valve, 3-1 is a cylindrical structure, 3-2 is a connecting rod, 3-3 is an annular baffle, 3-4 is an inverted barrel-shaped structure, 3-5 is a valve body, 3-6 is a reset spring, 3-7 is an air hole, 3-8 is a sealing ring, 4 is a drainage tube connector, 5 is a hanging clip, 6 is a drainage tube, 7 is a connecting neck, 8 is a one-way valve, 9 is a dust cap, 10 is a drainage bag connecting pipe, 11 is a lifting rope, 12 is an air permeable filtering membrane, 13 is a drainage bag, and 14 is a connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1-4, a negative pressure drainage device with a pressing type one-way valve comprises a negative pressure drainage container 1, a drainage bag 13 and a connecting neck 7; the top end of a negative pressure drainage container 1 is connected with a connecting neck 7 through a gland 2, an opening at the bottom of a negative pressure drainage device is connected with a connecting pipe 14, one end of the connecting pipe 14 is provided with a female joint, one end of a drainage bag connecting pipe 10 is provided with a male joint, the female joint is connected with the male joint, the female joint is provided with a closable dustproof cap 9, the drainage bag connecting pipe 10 is connected with a drainage bag 13, one end of the drainage bag connecting pipe 10 arranged inside the drainage bag 13 is connected with a one-way film, the drainage bag 13 is provided with a suspensible lifting rope 11, the bottom of the drainage bag 13 is provided with a drain valve, and the connecting pipe 14 and the drainage bag connecting pipe 10 are respectively provided with a pipe clamp; the connecting neck 7 is provided with a negative pressure opening, a plug is arranged in the negative pressure opening, the connecting neck 7 is connected with the hanging clip 5, the connecting neck 7 is provided with a drainage tube interface 4, the drainage tube interface 4 is connected with a drainage tube 6, and one end of the drainage tube interface 4 in the connecting neck 7 is connected with a one-way valve 8;
the plug is a pressing type one-way valve 3, the pressing type one-way valve 3 is fixedly connected with a negative pressure opening, the pressing type one-way valve 3 comprises a button, a valve body 3-5, a sealing ring 3-8 and a return spring 3-6, the valve body 3-5 is of a columnar structure, and a through hole is formed in the valve body 3-5; the button comprises a cylindrical structure 3-1 at the top, a reversed barrel-shaped structure 3-4 (a cylindrical structure without a bottom and with a cavity inside) at the bottom and a connecting rod 3-2 in the middle, wherein the cylindrical structure 3-1 and the reversed barrel-shaped structure 3-4 are connected through the connecting rod 3-2, the connecting rod 3-2 penetrates through a through hole in the top of the valve body 3-5, the reversed barrel-shaped structure 3-4 is arranged in the through hole in the middle of the valve body 3-5, the diameter of the bottom of the reversed barrel-shaped structure 3-4 is larger than that of the through hole in the bottom of the valve body 3-5, and the height of the reversed barrel-shaped structure 3-4 is smaller than that of the through hole in the middle of the valve body 3-5; the height of the connecting rod 3-2 is greater than that of the through hole in the top of the valve body 3-5; the top of the inverted bucket-shaped structure 3-4 is sleeved with a sealing ring 3-8, the sealing ring 3-8 is in contact with an annular baffle 3-3, and the annular baffle 3-3 is fixedly connected to the outer wall of the inverted bucket-shaped structure 3-4; a gap is arranged between the annular baffle 3-3 and the inner wall of the through hole of the valve body 3-5, a gap is arranged between the sealing ring 3-8 and the inner wall of the through hole of the valve body 3-5, the outer diameter of the sealing ring 3-8 is the same as that of the annular baffle 3-3, and the outer diameter of the annular baffle 3-3 is larger than that of the through hole in the top of the valve body 3-5; a cavity in the inverted barrel-shaped structure 3-4 is internally provided with a return spring 3-6, one end of the return spring 3-6 is contacted with the inverted barrel-shaped structure 3-4, the other end is contacted with the inner wall of a through hole of the valve body 3-5, and the return spring 3-6 is always in a pressed state; the sum of the heights of the connecting rod 3-2 and the inverted barrel-shaped structure 3-4 of the button is larger than the sum of the heights of the top inner through hole and the middle inner through hole of the valve body 3-5.
In another embodiment, the diameter of the through hole in the middle portion of the valve body 3-5 is larger than the diameter of the through hole in the top portion of the valve body 3-5, and the diameter of the through hole in the middle portion of the valve body 3-5 is larger than the diameter of the through hole in the bottom portion of the valve body 3-5.
In another embodiment, the top end of the valve body 3-5 includes a flat portion and a protruding portion, and the distance between the protruding portion of the top end of the valve body 3-5 and the lowest point of the through hole in the middle portion of the valve body 3-5 is equal to the sum of the heights of the connecting rod 3-2 of the push button and the inverted barrel-shaped structure 3-4.
In another embodiment, the side wall of the valve body 3-5 is provided with at least two air holes 3-7.
In another embodiment, the diameter of the cylindrical structure 3-1 at the top of the button is larger than the diameter of the through hole in the top of the valve body 3-5 and smaller than the diameter of the top end of the valve body 3-5.
In another embodiment, the drainage bag 13 is provided with an air permeable filtering membrane 12, and the air permeable filtering membrane 12 can only pass air but can not pass liquid.
In another embodiment, the outer diameter of the return spring 3-6 is larger than the diameter of the bottom inner through hole of the valve body 3-5.
In another embodiment, one end of the return spring 3-6 is connected with the inverted barrel-shaped structure 3-4, the other end is connected with the inner wall of the through hole of the valve body 3-5, and the return spring 3-6 is always in a pressed state.
In the utility model, the pressing type one-way valve 3 is arranged at the negative pressure outlet, when the pressing type one-way valve 3 is opened, namely, when the button is pressed downwards, because the inverted barrel-shaped structure 3-4 of the button is provided with the return spring 3-6, the button can be moved downwards until the bottom of the inverted barrel-shaped structure 3-4 of the button contacts the inner wall of the through hole of the valve body 3-5, at this time, the sealing ring 3-8 is not contacted with the inner wall of the through hole of the valve body 3-5, when the negative pressure drainage container 1 is extruded, air in the negative pressure drainage container 1 enters the through hole in the middle part of the valve body 3-5 through the through hole in the bottom part of the valve body 3-5, is discharged out of the negative pressure drainage container 1 through the annular baffle 3-3, the gap between the sealing ring 3-8 and the inner wall of the through hole in the middle part of the valve body 3-5 and the gap between the through hole in the top part of the valve body 3-5 and the connecting rod 3-2, the button is released, the pressing type one-way valve is closed, because the return spring 3-6 is in a pressed state and is under the elastic action of the return spring 3-6, the inverted barrel-shaped structure 3-4 of the button moves upwards, the inverted barrel-shaped structure 3-4 drives the annular baffle 3-3 to move upwards, the sealing ring 3-8 is acted by the annular baffle 3-3, the sealing ring 3-8 is tightly abutted against the inner wall of the through hole of the valve body 3-5, air can not enter and discharge through the through hole of the valve body 3-5, and due to the elastic force of the return spring 3-6, the sealing ring 3-8 is tightly abutted against the inner wall of the through hole of the valve body 3-5, so that gaps are not easy to appear, air is not easy to circulate, and the maintenance of a negative pressure state is ensured; the air-permeable filtering membrane 12 is arranged on the drainage bag 13, so that air can be discharged, liquid cannot be discharged, air in the drainage bag 13 can be discharged in time, and the drainage bag 13 is prevented from being inflated.
The utility model discloses a 3 negative pressure drainage devices of push type check valve, after installing, press the button and extrude negative pressure drainage container 1, pass through the through-hole discharge in the push type check valve 3 with the air, make negative pressure drainage container 1 interior production negative pressure, the extrusion is released the button after finishing, negative pressure drainage container 1 keeps the negative pressure state. When the negative pressure drainage device starts to work, drainage liquid flows into the negative pressure drainage container 1 through the drainage tube 6, when the drainage liquid in the negative pressure drainage container 1 needs to be discharged into the drainage bag 13, air in the drainage bag 13 can be discharged along with the breathable filtering membrane 12, the drainage bag 13 is prevented from inflating, and finally the drainage liquid in the drainage bag 13 is discharged when the exhaust valve is opened.
The utility model discloses, replace traditional manual end cap structure with push type check valve 3, effectively prevent the condition that the end cap popped out when using, make the operation simpler, and have better leakproofness, set up filtration membrane, effectively prevent drainage bag 13 flatulence, guarantee that the liquid in the negative pressure drainage container 1 smoothly flows into drainage bag 13, ensured the safety of drainage bag 13; the device simple structure, convenient operation has good leakproofness, and higher security can provide more convenient and fast's use for clinical medical personnel and experience, has improved nursing efficiency greatly.
Claims (10)
1. A negative pressure drainage device with a pressing type check valve comprises a negative pressure drainage container (1), a drainage bag (13) and a connecting neck (7), wherein the top end of the negative pressure drainage container (1) is connected with the connecting neck (7), the bottom of the negative pressure drainage container is connected with the drainage bag (13), a negative pressure opening is formed in the connecting neck (7), and a plug is arranged in the negative pressure opening; the button comprises a cylindrical structure (3-1) at the top, a reversed barrel-shaped structure (3-4) at the bottom and a connecting rod (3-2) in the middle, the cylindrical structure (3-1) and the reversed barrel-shaped structure (3-4) are connected through the connecting rod (3-2), the connecting rod (3-2) penetrates through a through hole in the top of the valve body (3-5), the reversed barrel-shaped structure (3-4) is arranged in a through hole in the middle of the valve body (3-5), the diameter of the bottom of the reversed barrel-shaped structure (3-4) is larger than that of the through hole in the bottom of the valve body (3-5), the height of the reversed barrel-shaped structure (3-4) is smaller than that of the through hole in the middle of the valve body (3-5), and the height of the connecting rod (3-2) is larger than that of the through hole in the top of the valve body (3-5); the top of the inverted bucket-shaped structure (3-4) is sleeved with a sealing ring (3-8), the sealing ring (3-8) is in contact with the annular baffle (3-3), and the annular baffle (3-3) is arranged on the outer wall of the inverted bucket-shaped structure (3-4); a gap is formed between the annular baffle (3-3) and the inner wall of the through hole in the middle part of the valve body (3-5), a gap is formed between the sealing ring (3-8) and the inner wall of the through hole in the middle part of the valve body (3-5), and the outer diameters of the annular baffle (3-3) and the sealing ring (3-8) are larger than the diameter of the through hole in the top part of the valve body (3-5); a return spring (3-6) is arranged in the inverted barrel-shaped structure (3-4), one end of the return spring (3-6) is contacted with the inverted barrel-shaped structure (3-4), and the other end is contacted with the inner wall of the through hole of the valve body (3-5); the sum of the heights of the connecting rod (3-2) and the inverted barrel-shaped structure (3-4) of the button is larger than the sum of the heights of the through hole in the top part and the through hole in the middle part of the valve body (3-5).
2. The negative pressure drainage device with the push type one-way valve according to claim 1, wherein the diameter of the through hole in the middle of the valve body (3-5) is larger than that of the through hole in the top of the valve body (3-5), and the diameter of the through hole in the middle of the valve body (3-5) is larger than that of the through hole in the bottom of the valve body (3-5).
3. The negative pressure drainage device with the push type one-way valve according to claim 1, wherein the outer diameter of the sealing ring (3-8) is the same as that of the annular baffle (3-3).
4. The negative pressure drainage device with the push type check valve as claimed in claim 1, wherein the top end of the valve body (3-5) comprises a flat portion and a protruding portion.
5. The negative pressure drainage device with the push type check valve as claimed in claim 4, wherein the distance between the protruding part of the top end of the valve body (3-5) and the lowest point of the through hole in the middle part of the valve body (3-5) is equal to the sum of the heights of the connecting rod (3-2) and the inverted bucket-shaped structure (3-4) of the push button.
6. The negative pressure drainage device with the push type one-way valve according to claim 1, wherein the side wall of the inverted bucket-shaped structure (3-4) is provided with at least two air vents (3-7).
7. The negative pressure drainage device with the push type check valve as claimed in claim 1, wherein the diameter of the cylindrical structure (3-1) at the top of the button is larger than that of the through hole in the top of the valve body (3-5), and the diameter of the cylindrical structure (3-1) is smaller than that of the top end of the valve body (3-5).
8. The negative pressure drainage device with the push type one-way valve according to claim 1, characterized in that the return spring (3-6) is in a compressed state.
9. The negative pressure drainage device with the push type one-way valve is characterized in that an air permeable filtering membrane (12) is arranged on the drainage bag (13).
10. The negative pressure drainage device with the push type one-way valve is characterized in that the outer diameter of the return spring (3-6) is larger than the diameter of the bottom inner through hole of the valve body (3-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221483923.3U CN218075858U (en) | 2022-06-14 | 2022-06-14 | Negative pressure drainage device with push type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221483923.3U CN218075858U (en) | 2022-06-14 | 2022-06-14 | Negative pressure drainage device with push type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218075858U true CN218075858U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221483923.3U Active CN218075858U (en) | 2022-06-14 | 2022-06-14 | Negative pressure drainage device with push type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218075858U (en) |
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2022
- 2022-06-14 CN CN202221483923.3U patent/CN218075858U/en active Active
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