CN215821837U - Negative pressure automatic liquid stopping device - Google Patents
Negative pressure automatic liquid stopping device Download PDFInfo
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- CN215821837U CN215821837U CN202120608072.XU CN202120608072U CN215821837U CN 215821837 U CN215821837 U CN 215821837U CN 202120608072 U CN202120608072 U CN 202120608072U CN 215821837 U CN215821837 U CN 215821837U
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Abstract
The utility model relates to a negative pressure automatic liquid stopper, which is connected in series between a central negative pressure device and a storage container and comprises a hollow liquid stopper body, wherein a negative pressure suction pipe and a liquid inlet pipe which are respectively communicated with the liquid stopper body are arranged on the liquid stopper body; a floating ball is arranged in the liquid stopper body, and the diameter of the floating ball is larger than the pipe orifice of the negative pressure suction pipe. When the liquid in the storage container is overflowed, the liquid enters the liquid stop device main body through the liquid inlet pipe, and when the liquid level reaches a certain height, the floating ball seals the pipe orifice of the negative pressure suction pipe to prevent the liquid from entering the central negative pressure device, so that the problem that the liquid is overflowed and enters the central negative pressure device through the negative pressure suction pipe is solved. The liquid stopping device has good liquid stopping effect and ensures the safety of equipment; and the structure is simple, the device can be repeatedly used, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a negative pressure automatic liquid stopper.
Background
At present, when most hospitals suck the liquid containing the dirt, a near-end pipeline is arranged on a storage container to be connected with a central negative pressure device, a far-end suction tube is arranged to be connected with the liquid containing the dirt, the central negative pressure device is adopted to suck, and the liquid containing the dirt sucked out by the far-end suction tube enters the storage container. In actual work, the storage container is often filled and overflows, enters the central negative pressure device to cause pollution, corrosion and blockage of the central negative pressure device, and even causes damage to the whole system, thereby causing great loss.
SUMMERY OF THE UTILITY MODEL
The utility model provides a negative pressure automatic liquid stopper aiming at the technical problems in the prior art, which is used for solving the problem that liquid in the existing storage container overflows and enters a central negative pressure device.
The technical scheme for solving the technical problems is as follows:
a negative pressure automatic liquid stopper is connected in series between a central negative pressure device and a storage container and comprises a hollow liquid stopper body, wherein a negative pressure suction pipe and a liquid inlet pipe which are respectively communicated with the liquid stopper body are arranged on the liquid stopper body; a floating ball is arranged in the liquid stopper body, and the diameter of the floating ball is larger than the pipe orifice of the negative pressure suction pipe.
The utility model has the beneficial effects that: when the vacuum suction device works normally, negative pressure is applied to the negative pressure suction tube through the central negative pressure device, suction is generated in the negative pressure suction tube, the liquid stop device body, the liquid inlet tube and the storage container, and dirt-containing liquid is sucked into the storage container for storage. When the liquid in the storage container is full, the liquid sucks the liquid containing the dirt into the liquid stopper body through the liquid inlet pipe under the action of suction. As the liquid in the liquid stopper body increases, the liquid level in the liquid stopper body gradually rises, and in the process, as the air in the liquid stopper body is continuously sucked away by the negative pressure suction tube, the floating ball floating on the liquid level moves towards the orifice of the negative pressure suction tube along with the air; when the liquid level rises to be close to the pipe orifice of the negative pressure suction pipe, the outer spherical surface of the floating ball seals the pipe orifice of the negative pressure suction pipe under the suction effect of the negative pressure suction pipe, at the moment, the air pressure in the liquid stopping device body keeps balance, new liquid is not sucked into the liquid stopping device body any more, the liquid level in the liquid stopping device body tends to be stable, and the situation that the liquid overflows and enters the central negative pressure device through the negative pressure suction pipe is avoided. And because the diameter of the floating ball is larger than the pipe orifice of the negative pressure suction pipe, the floating ball can not enter the negative pressure suction pipe to cause blockage when the negative pressure suction pipe is closed, and after the negative pressure is relieved and the liquid level is reduced (for example, the liquid is released from the liquid stopper body), the floating ball automatically drops due to gravity, the pipe orifice of the negative pressure suction pipe is opened, and the device can perform the next round of repeated work. When the liquid level in the liquid stopping device reaches a certain height, the floating ball seals the orifice of the negative pressure suction tube to prevent liquid from entering the central negative pressure device, so that the problem that the liquid overflows and enters the central negative pressure device through the negative pressure suction tube is solved, the liquid stopping effect is good, and the equipment safety is guaranteed; and the structure is simple, the device can be repeatedly used, and the cost is saved.
On the basis of the technical scheme, the utility model can be further improved as follows.
Preferably, the height of the interface between the negative pressure suction tube and the liquid stopper body is not lower than the height of the interface between the liquid inlet tube and the liquid stopper body.
The beneficial effect of adopting the further scheme is that: when the liquid level detection device is used, when the liquid level reaches the connector of the liquid stopping device body and the negative pressure suction tube, the floating ball can seal the tube opening of the negative pressure suction tube so as to prevent liquid from entering the central negative pressure device and causing equipment damage.
Preferably, end the liquid ware body and include half first shell and the second shell of butt joint, the one end of half first shell and the second shell all is provided with the accommodation space of indent, the one end of half first shell indent and the one end opposite direction setting of the indent of half second shell, the border of half first shell and the second shell is detained mutually and is passed through screw thread interconnect.
The beneficial effect of adopting the further scheme is that: two component parts of ending the liquid ware body pass through screw thread detachably and connect, are convenient for dismantle washing, disinfection to ending the liquid ware body to and unpack apart and end the liquid ware body when the floater reachs life and change the floater, do benefit to the long-term use of this liquid ware body.
Preferably, the liquid stopper body is a cylindrical body, and the negative pressure suction tube and the liquid inlet tube are respectively and symmetrically arranged at two ends of the liquid stopper body.
The beneficial effect of adopting the further scheme is that: the negative pressure suction pipe and the liquid inlet pipe are symmetrically arranged at two ends of the liquid stopping device body, so that the functions of the negative pressure suction pipe and the liquid inlet pipe can be exchanged, the negative pressure suction pipe is not influenced by the position and the angle of the liquid stopping device during use, the two ends can be transversely arranged and vertically arranged, and the negative pressure suction pipe is not lower than the pipe orifice of the liquid inlet pipe.
Preferably, one surface of the liquid stopper body connected with the negative pressure suction tube is a conical surface tapering toward the negative pressure suction tube.
The beneficial effect of adopting the further scheme is that: when the floating ball floats to the direction of the negative pressure suction tube under the action of negative pressure, the conical surface has a certain guiding function on the floating ball, so that the position of the floating ball is kept close to the position of the tube opening of the negative pressure suction tube, and when the liquid level rises to a certain height, the floating ball can quickly close the tube opening of the negative pressure suction tube.
Preferably, the surface of the floating ball has flexibility.
The beneficial effect of adopting the further scheme is that: when the floating ball blocks the orifice of the negative pressure suction tube, the floating ball with certain flexibility on the surface can be properly deformed so as to better seal the orifice of the negative pressure suction tube and have better liquid stopping effect.
Preferably, the floating ball is made of PP foaming material.
The beneficial effect of adopting the further scheme is that: the floating ball is made of PP foaming materials with low cost to be spherical, has the advantages of large buoyancy, light weight and easy floating along with negative pressure, is low in cost, and is favorable for replacement when used as a consumable.
Drawings
FIG. 1 is a schematic view of a usage scenario of the present invention;
FIG. 2 is a schematic view of the present invention in a normal state when it is laterally disposed;
FIG. 3 is a schematic view of the overflow status of the present invention when the device is installed in the horizontal direction;
FIG. 4 is a schematic view of the utility model in a normal state when vertically disposed;
FIG. 5 is a schematic view of the overflow status of the present invention in a vertical setting.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the liquid stopper comprises a liquid stopper body, 101, a first half shell, 102, a second half shell, 2, a negative pressure suction tube, 3, a liquid inlet tube, 4, a floating ball, 5, liquid, M and threads.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
The negative pressure automatic liquid stopper provided by the embodiment is connected in series between a central negative pressure device and a storage container as shown in fig. 1. As shown in fig. 2 to 4, the liquid stopping device comprises a hollow liquid stopping device body 1, wherein a negative pressure suction tube 2 and a liquid inlet tube 3 which are respectively communicated with the liquid stopping device body 1 are arranged on the liquid stopping device body 1, and the central negative pressure device is communicated with the liquid stopping device body 1 through the negative pressure suction tube 2 to provide negative pressure for the liquid stopping device body 1; one end of the liquid inlet pipe 3 is communicated with a storage container for storing the liquid 5 containing the dirt, and the other end of the liquid inlet pipe is communicated with the inside of the liquid stopper body 1 and is used for providing negative pressure for the storage container when in normal work so as to suck the liquid 5 containing the dirt into the storage container for storage; when the liquid 5 in the storage container is full, the liquid inlet pipe 3 sucks the liquid 5 containing dirt into the liquid stopper body 1. A floating ball 4 is arranged in the liquid stopper body 1, and the diameter of the floating ball 4 is larger than the pipe orifice of the negative pressure suction pipe 2.
When the device normally works, negative pressure is applied to the negative pressure suction tube 2 through the central negative pressure device, suction is generated in the negative pressure suction tube 2, the liquid stopper body 1, the liquid inlet tube 3 and the storage container, and the dirt-containing liquid 5 is sucked into the storage container for storage. When the liquid 5 in the storage container is full, the liquid 5 sucks the liquid 5 containing dirt into the liquid stopper body 1 through the liquid inlet pipe 3 under the action of suction. As the liquid 5 in the liquid stopper body 1 increases, the liquid level in the liquid stopper body 1 gradually rises, and in the process, as the air in the liquid stopper body 1 is continuously sucked away by the negative pressure suction tube 2, the floating ball 4 floating on the liquid level also moves towards the orifice of the negative pressure suction tube 2 along with the air; when the liquid level rises to be close to the pipe orifice of the negative pressure suction pipe 2, the outer spherical surface of the floating ball 4 seals the pipe orifice of the negative pressure suction pipe 2 under the suction effect of the negative pressure suction pipe 2, at the moment, the air pressure in the liquid stopper body 1 keeps balance, new liquid 5 is not sucked into the liquid stopper body 1 any more, the liquid level in the liquid stopper body 1 stops rising, new liquid 5 is not sucked into the storage container any more, the central negative pressure device stops working and gives an alarm, and the situation that the liquid 5 overflows and enters the central negative pressure device through the negative pressure suction pipe 2 is avoided. And because the diameter of the floating ball 4 is larger than the pipe orifice of the negative pressure suction pipe 2, the floating ball 4 can not enter the negative pressure suction pipe 2 to cause blockage when the negative pressure suction pipe 2 is closed, and after the negative pressure is relieved and the liquid level is reduced (for example, the liquid 5 is released out of the liquid stopper body 1), the floating ball 4 automatically falls to the bottom of the liquid stopper body 1 due to gravity to open the pipe orifice of the negative pressure suction pipe 2, and the device can perform the next round of repeated work. When the liquid level in the liquid stopping device reaches a certain height, the floating ball 4 seals the orifice of the negative pressure suction tube 2 to prevent the liquid 5 from overflowing, so that the problem that the liquid 5 overflows and enters the central negative pressure device through the negative pressure suction tube 2 is solved, the liquid stopping effect is good, and the equipment safety is guaranteed; and the structure is simple, the device can be repeatedly used, and the cost is saved.
On the basis of the above technical solution, the present embodiment can be further improved as follows.
In this embodiment, the height of the interface between the negative pressure suction tube 2 and the liquid stopper body 1 is not lower than the height of the interface between the liquid inlet tube 3 and the liquid stopper body 1.
When the liquid level detecting device is used, when the liquid level reaches the interface between the liquid stopping device body 1 and the negative pressure suction tube 2, the floating ball 4 can seal the opening of the negative pressure suction tube 2 so as to prevent the liquid 5 from entering the central negative pressure device to cause equipment damage.
In this embodiment, as shown in fig. 2 to 4, the liquid stopper body 1 includes a first half shell 101 and a second half shell 102 that are butted, and preferably, the first half shell 101 and the second half shell 102 are identical in structure and are coaxially and oppositely disposed. The one end of first half shell 101 and second half shell 102 all is provided with the accommodation space of indent, the one end of first half shell 101 indent and the one end opposite direction of the indent of second half shell 102 set up, the border of first half shell 101 and second half shell 102 is detained mutually and is passed through screw thread M interconnect.
Two component parts of end liquid ware body 1 pass through screw thread M detachably and connect, are convenient for dismantle washing, disinfection to end liquid ware body 1 to and unpack apart end liquid ware body 1 when floater 4 reachs life and change floater 4, do benefit to this long-term use of ending liquid ware body 1, in order to save the cost. Both can be arranged horizontally as shown in fig. 2-3 or vertically as shown in fig. 4-5. When in use, the pipe orifice of the negative pressure suction pipe 2 is not lower than the pipe orifice of the liquid inlet pipe 3.
When the liquid stopping device is arranged horizontally as shown in fig. 2 and the liquid 5 in the storage container is not full, the liquid stopping device body 1 does not contain the liquid 5, and the floating ball 4 stops at the bottom of the liquid stopping device body 1 due to gravity. The gas in the storage container sequentially passes through the liquid inlet pipe 3, the liquid stopping device body 1 and the negative pressure suction pipe 2 to enter the central negative pressure device, and the outside dirt-containing liquid 5 is sucked into the storage container. The floating ball 4 is blown by the gas flowing in the process to a position close to the negative pressure suction pipe 2. When the liquid 5 in the storage container is full, as shown in fig. 3, the liquid 5 in the storage container enters the liquid stopper body 1 through the liquid inlet pipe 3, the floating ball 4 floats upwards under the action of buoyancy until the pipe orifice of the negative pressure suction pipe 2 is sealed by the floating ball 4, at this time, the liquid 5 in the storage container stops entering the liquid stopper body 1, and the external liquid 5 also stops entering the storage container.
As shown in fig. 4, when the stopper is vertically arranged and the liquid 5 in the storage is not full, no liquid 5 is in the stopper body 1, the floating ball 4 stops at the bottom of the stopper body 1 due to gravity, and due to the negative pressure above, the gas in the storage container sequentially passes through the liquid inlet pipe 3, the stopper body 1 and the negative pressure suction pipe 2 to enter the central negative pressure device, and the floating ball 4 is slightly blown upwards by the gas flowing in the process, so that the gas smoothly flows into the stopper body 1. As the liquid level in the liquid stopper body 1 rises, as shown in fig. 5, the floating ball 4 rises under the action of the buoyancy until the floating ball 4 closes the nozzle of the vacuum aspiration tube 2, and the floating ball 4 and the nozzle of the vacuum aspiration tube 2 are closed more tightly by the suction action of the vacuum. At this time, the liquid 5 in the storage container stops entering the liquid stopper body 1, and the external liquid 5 also stops entering the storage container.
In this embodiment, the liquid stopper body 1 is a cylindrical body, preferably a cylinder, and the negative pressure suction tube 2 and the liquid inlet tube 3 are respectively and symmetrically disposed at two ends of the liquid stopper body 1.
The negative pressure suction pipe 2 and the liquid inlet pipe 3 are symmetrically arranged at two ends of the liquid stopping device body 1, so that the functions of the negative pressure suction pipe 2 and the liquid inlet pipe 3 can be exchanged, the negative pressure suction pipe is not influenced by the position and the angle of the liquid stopping device during use, two ends of the negative pressure suction pipe can be transversely arranged and vertically arranged, and the negative pressure suction pipe 2 is not lower than the pipe orifice of the liquid inlet pipe 3.
In this embodiment, a surface of the liquid stopper body 1 connected to the negative pressure suction tube 2 is a conical surface that tapers toward the negative pressure suction tube 2.
The conical surface is gradually reduced towards the direction of the negative pressure suction tube 2, when the floating ball 4 floats towards the direction of the negative pressure suction tube 2 under the action of negative pressure, the conical surface has a certain guiding function on the floating ball 4, so that the position of the floating ball 4 is kept close to the position of the pipe orifice of the negative pressure suction tube 2, and when the liquid level rises to a certain height, the floating ball 4 can quickly close the pipe orifice of the negative pressure suction tube 2.
In this embodiment, the surface of the floating ball 4 has flexibility. To achieve the technical effect, a layer of corrosion-resistant soft rubber, such as rubber, can be coated on the surface of the floating ball 4, so that the surface of the floating ball 4 has certain elasticity. The thickness of the coating layer is determined according to the actual requirements on the flexibility and elasticity of the surface of the floating ball 4. Generally, the better flexibility and elasticity, the better sealing performance of the floating ball 4.
When the floating ball 4 blocks the orifice of the vacuum aspiration tube 2, the floating ball 4 with certain flexibility or elasticity on the surface can be properly deformed so as to better seal the orifice of the vacuum aspiration tube 2 and have better liquid stopping effect.
Theoretically, the floating ball 4 of the present invention can be made of various baolilong materials. Polygala is a kind of high molecular material formed by dispersing lots of gas micropores in solid plastics, and almost all plastics can be made into Polygala. Since the liquid stopper of this embodiment is used in the weak acidic or weak alkaline liquid 5 environment, and needs to have a certain corrosion resistance, in this embodiment, the floating ball 4 is preferably made of PP foam material and is made into a spherical shape.
The floater 4 of this embodiment adopts low cost's PP expanded material to make into the sphere, and it has that buoyancy is big, matter is light, easily follows the advantage that the negative pressure floats, and low cost does benefit to the change when using as the consumptive material.
The working principle is as follows:
when the device normally works, negative pressure is applied to the negative pressure suction tube 2 through the central negative pressure device, suction is generated in the negative pressure suction tube 2, the liquid stopper body 1, the liquid inlet tube 3 and the storage container, and the dirt-containing liquid 5 is sucked into the storage container for storage. When the liquid 5 in the storage container is full, the liquid 5 sucks the liquid 5 containing dirt into the liquid stopper body 1 through the liquid inlet pipe 3 under the action of suction. As the liquid 5 in the liquid stopper body 1 increases, the liquid level in the liquid stopper body 1 gradually rises, and in the process, as the air in the liquid stopper body 1 is continuously sucked away by the negative pressure suction tube 2, the floating ball 4 floating on the liquid level also moves towards the orifice of the negative pressure suction tube 2 along with the air; when the liquid level rises to be close to the pipe orifice of the negative pressure suction pipe 2, the outer spherical surface of the floating ball 4 seals the pipe orifice of the negative pressure suction pipe 2 under the suction effect of the negative pressure suction pipe 2, at the moment, the air pressure in the liquid stopper body 1 keeps balance, new liquid 5 is not sucked into the liquid stopper body 1 any more, the liquid level in the liquid stopper body 1 stops rising, new liquid 5 is not sucked into the storage container any more, the central negative pressure device stops working and gives an alarm, and the situation that the liquid 5 overflows and enters the central negative pressure device through the negative pressure suction pipe 2 is avoided. And because the diameter of the floating ball 4 is larger than the pipe orifice of the negative pressure suction pipe 2, the floating ball 4 can not enter the negative pressure suction pipe 2 to cause blockage when the negative pressure suction pipe 2 is closed, and after the negative pressure is relieved and the liquid level is reduced (for example, the liquid 5 is released out of the liquid stopper body 1), the floating ball 4 automatically falls to the bottom of the liquid stopper body 1 due to gravity to open the pipe orifice of the negative pressure suction pipe 2, and the device can perform the next round of repeated work. The medical staff changes the empty storage container, cleans the liquid stopper and the pipeline, and recovers the central negative pressure system for use.
When the liquid level in the liquid stopping device reaches a certain height, the floating ball 4 seals the orifice of the negative pressure suction tube 2 to prevent the liquid 5 from overflowing, so that the problem that the liquid 5 overflows and enters the central negative pressure device through the negative pressure suction tube 2 is solved, the liquid stopping effect is good, and the equipment safety is guaranteed; the structure is simple, the disassembly and the cleaning and the disinfection are convenient, the repeated use is realized, and the cost is saved; both ends symmetry sets up, makes this end liquid ware receive the influence in usage space less, no matter be vertical place or transversely place all can normal use, the suitability is wider.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The negative pressure automatic liquid stopper is characterized by comprising a hollow liquid stopper body (1), wherein a negative pressure suction pipe (2) and a liquid inlet pipe (3) which are respectively communicated with the liquid stopper body (1) are arranged on the liquid stopper body (1), a floating ball (4) is arranged in the liquid stopper body (1), and the diameter of the floating ball (4) is larger than the pipe orifice of the negative pressure suction pipe (2).
2. The negative-pressure automatic liquid stopper according to claim 1, wherein the height of the interface between the negative-pressure suction tube (2) and the liquid stopper body (1) is not lower than the height of the interface between the liquid inlet tube (3) and the liquid stopper body (1).
3. The negative pressure automatic liquid stopper according to claim 1, wherein the liquid stopper body (1) comprises a first half shell (101) and a second half shell (102) which are butted, one end of each of the first half shell (101) and the second half shell (102) is provided with a concave accommodating space, one end of each of the first half shell (101) and the second half shell (102) which are concave is oppositely arranged, and edges of the first half shell (101) and the second half shell (102) are buckled with each other and are connected with each other through a thread (M).
4. The negative pressure automatic liquid stopper according to any one of claims 1 to 3, wherein the liquid stopper body (1) is a cylindrical body, and the negative pressure suction tube (2) and the liquid inlet tube (3) are respectively symmetrically arranged at two ends of the liquid stopper body (1).
5. The automatic negative pressure liquid stopper according to claim 4, wherein the surface of the liquid stopper body (1) connected with the negative pressure suction tube (2) is a conical surface which is tapered towards the negative pressure suction tube (2).
6. The negative pressure automatic liquid stopper according to claim 1, wherein the surface of the floating ball (4) has flexibility.
7. The negative pressure automatic liquid stopper according to claim 1, wherein the floating ball (4) is a PP foam material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608072.XU CN215821837U (en) | 2021-03-25 | 2021-03-25 | Negative pressure automatic liquid stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608072.XU CN215821837U (en) | 2021-03-25 | 2021-03-25 | Negative pressure automatic liquid stopping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215821837U true CN215821837U (en) | 2022-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120608072.XU Active CN215821837U (en) | 2021-03-25 | 2021-03-25 | Negative pressure automatic liquid stopping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215821837U (en) |
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2021
- 2021-03-25 CN CN202120608072.XU patent/CN215821837U/en active Active
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