CN220967654U - Ventilation switching structure of negative pressure regulator - Google Patents
Ventilation switching structure of negative pressure regulator Download PDFInfo
- Publication number
- CN220967654U CN220967654U CN202321947902.7U CN202321947902U CN220967654U CN 220967654 U CN220967654 U CN 220967654U CN 202321947902 U CN202321947902 U CN 202321947902U CN 220967654 U CN220967654 U CN 220967654U
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- negative pressure
- groove
- switching
- pair
- ventilation
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- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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Abstract
The utility model relates to a ventilation switching structure of a negative pressure regulator, which comprises a valve body, a switching cylinder and a knob. The valve body comprises a containing groove, a main pipe and a pair of branch pipes, wherein the main pipe is connected with the negative pressure instrument and the containing groove, and the pair of branch pipes are positioned at two side edges of the main pipe. The switching cylinder is rotatably arranged in the accommodating groove and comprises a main channel, a plurality of side channels and a blocking wall, wherein the side channels are communicated with the main channel and are arranged at one side of the blocking wall at intervals. The knob is combined on the switching cylinder and drives the switching cylinder to rotate so that the blocking wall can selectively block one of the branched pipes, thereby achieving the purpose of ventilation switching.
Description
Technical Field
The present utility model relates to a negative pressure regulator, and more particularly, to a ventilation switching structure of a negative pressure regulator.
Background
The negative pressure instrument is a common therapeutic and medical health-care equipment, and is used for promoting blood circulation and relieving discomfort by sucking and stimulating acupoints on the skin surface under negative pressure so as to achieve the aim of regulating body functions.
In general, when the negative pressure instrument is used, the negative pressure regulator is matched to regulate the pressure, and in addition, the negative pressure regulator is usually provided with a plurality of branch pipes to connect a plurality of negative pressure cups. However, when only one sub-pressure cup is used, the sub-tube to which the sub-pressure cup is not connected needs to be sealed using a stopper. This causes inconvenience in use. Furthermore, if the stopper cap does not completely seal the branch pipe, gas leakage is easily caused to affect the use.
In view of the above, the present inventors have made intensive studies and have made an effort to solve the above-mentioned problems in view of the above-mentioned prior art, and have made an improvement of the present inventors.
Disclosure of utility model
An object of the present utility model is to provide a ventilation switching structure of a negative pressure regulator, in which a knob drives a switching cylinder to rotate, so that a blocking wall can selectively block one of the branch pipes, thereby achieving the purpose of ventilation switching.
In order to achieve the above-mentioned objective, the present utility model is a ventilation switching structure of a negative pressure regulator, which is used for connecting a negative pressure instrument and comprises a valve body, a switching cylinder and a knob. The valve body comprises a containing groove, a main pipe and a pair of branch pipes, wherein the main pipe is used for connecting the negative pressure instrument and the containing groove, and the pair of branch pipes are correspondingly positioned at two side edges of the main pipe. The switching cylinder is rotatably arranged in the accommodating groove and comprises a main channel, a plurality of side channels and a blocking wall, wherein the side channels are communicated with the main channel and are arranged at one side of the blocking wall at intervals. The knob is combined on the switching cylinder, and the knob drives the switching cylinder to rotate so that the blocking wall can selectively block one of the branch pipes.
In an embodiment of the utility model, the valve body is provided with a pair of limiting grooves at the bottom side of the accommodating groove, the pair of limiting grooves are arranged at the top edge of the main pipe at intervals, and each limiting groove is provided as an arc groove and has an arc angle smaller than 180 degrees.
In an embodiment of the utility model, the switching cylinder includes a pair of hooks located at opposite sides of the main channel and respectively engaged in the pair of limiting grooves.
In an embodiment of the utility model, a flange is formed on one side of each limit groove of the valve body, and each hook is buckled on the flange.
In one embodiment of the present utility model, each side channel is a fan-shaped slot, and the switching cylinder is formed with a partition between adjacent side channels.
In an embodiment of the utility model, the ventilation switching structure further includes an airtight ring, the switching cylinder is provided with a ring groove at the periphery of the plurality of side channels, and the airtight ring is disposed in the ring groove and is abutted against the inner wall surface of the accommodating groove.
In one embodiment of the present utility model, the annular groove is an elliptical groove.
In an embodiment of the utility model, the valve body is provided with a plurality of vent holes, and the plurality of vent holes are arranged on the inner wall of the accommodating groove and correspond to the positions of the split pipes.
In an embodiment of the present utility model, the plurality of vent holes are arranged in pairs at the positions where the branched pipes are connected with the accommodating grooves, and the valve body is formed with a baffle between the adjacent vent holes.
In an embodiment of the utility model, the ventilation switching structure further includes a gasket, a groove is disposed on a side surface of the switching cylinder facing the main pipe, and the gasket is disposed in the groove and abuts against the top surface of the main pipe.
Compared with the prior art, the ventilation switching structure of the negative pressure regulator comprises the valve body, the switching cylinder and the knob, wherein the switching cylinder is rotatably arranged in the valve body and comprises the main channel, a plurality of side channels and the blocking wall, the side channels are communicated with the main channel and are arranged at one side of the blocking wall at intervals, and the knob drives the switching cylinder to rotate so as to enable the blocking wall to selectively block one of the sub-tubes, thereby achieving the purpose of ventilation switching, and omitting the process of sealing the unused sub-tubes by using a plug cover when the negative pressure regulator uses one negative pressure cup, and improving the convenience and practicability in use of the ventilation switching structure of the negative pressure regulator.
Drawings
Fig. 1 is a schematic diagram showing an application of the ventilation switching structure of the negative pressure regulator of the present utility model.
Fig. 2 is a schematic perspective view of a ventilation switching structure of the negative pressure regulator of the present utility model.
Fig. 3 is an exploded schematic view of the ventilation switching structure of the negative pressure regulator of the present utility model.
Fig. 4 is a combined cross-sectional view of the ventilation switching structure of the negative pressure regulator of the present utility model.
Fig. 5 is a schematic cross-sectional view of the hook of the switching cylinder extending into the limit groove of the valve body.
Fig. 6 is a combined sectional view of the switching cylinder of the present utility model disposed in the receiving groove.
Fig. 7 to 9 are schematic views of the knob of the present utility model in different cross-sectional views in the same state of rotation.
Symbol description in the drawings:
1, a negative pressure regulator;
2, a negative pressure instrument;
3, a negative pressure cup;
3a, a first negative pressure cup;
3b, a second negative pressure cup;
10, a valve body;
11, a containing groove;
12, a main pipe;
13, separating pipes;
14, a vent hole;
15, a baffle;
20, a switching cylinder;
200, grooves;
21, a main channel;
side channels 22;
220: a circular groove;
23, a retaining wall;
24, a separator;
25, a clamping hook;
30, a knob;
40, an airtight ring;
50, a gasket.
Detailed Description
The detailed description and technical content of the present utility model are described below with reference to the drawings, which are, however, provided for reference and illustration only and are not intended to limit the present utility model.
Fig. 1 is a schematic diagram of an application of the negative pressure regulator of the present utility model. The negative pressure regulator 1 is arranged between a negative pressure instrument 2 and a plurality of negative pressure cups 3. In this embodiment, the negative pressure cups 3 include a first negative pressure cup 3a and a second negative pressure cup 3b. In addition, the negative pressure regulator 1 is provided with a ventilation switching structure for connecting the negative pressure instrument 2 and the negative pressure cups 3. The present utility model can switch by the ventilation switching structure to selectively use the first negative pressure cup 3a, the second negative pressure cup 3b or use the first negative pressure cup 3a and the second negative pressure cup 3b simultaneously.
Fig. 2 to 4 are schematic perspective views, schematic exploded views and sectional combined views of the ventilation switching structure of the negative pressure regulator of the present utility model. The utility model relates to a ventilation switching structure of a negative pressure regulator 1, which comprises a valve body 10, a switching cylinder 20 and a knob 30. The switching cylinder 20 is disposed in the valve body 10. The knob 30 is coupled to the switching cylinder 20 and drives the switching cylinder 20 to rotate.
The valve body 10 comprises a container 11, a main pipe 12 and a pair of branch pipes 13. The main pipe 12 is used for connecting the negative pressure instrument 2 (refer to fig. 1) and connecting the accommodating groove 11. The pair of branch pipes 13 are used for connecting the negative pressure cups 3 (refer to fig. 1), and are correspondingly positioned at two side edges of the main pipe 12.
Specifically, the valve body 10 is provided with a pair of stopper grooves 111 at the bottom side of the container 11. The pair of limiting grooves 111 are respectively located at one side edge of the pair of split pipes 13. In addition, the valve body 10 is provided with a plurality of vent holes 14. The ventilation holes 14 are disposed on the inner wall of the accommodating groove 11 and correspond to the positions of the pair of branch pipes 13. Specifically, the vent holes 14 are disposed in pairs at the positions where the branch pipes 13 connect the accommodating groove 11, and a blocking piece 15 is formed between the adjacent vent holes 14 of the valve body 10. The baffle 15 can be used to block the entry of foreign matters and increase the structural strength of the container 11.
The switching cylinder 20 is rotatably disposed in the accommodating groove 11 and comprises a main channel 21, a plurality of side channels 22 and a blocking wall 23. The side channels 22 are communicated with the main channel 21 and are arranged at one side of the blocking wall 23 at intervals. Further, the knob 30 is coupled to the switching cylinder 20. The knob 30 drives the switching cylinder 20 to rotate so that the blocking wall 23 can selectively block one of the branched pipes 13.
In this embodiment, each side channel 22 is a fan-shaped slot, and a partition 24 is formed between adjacent side channels 22 of the switching cylinder 20. In addition, the switching cylinder 20 includes a pair of hooks 25. The pair of hooks 25 are located at opposite sides of the main channel 21 and respectively engaged in the pair of limiting grooves 111. Preferably, the valve body 10 is formed with a flange 112 at one side of each of the limiting grooves 111. Each hook 25 is snapped onto the flange 112.
In an embodiment of the present utility model, the ventilation switching structure of the negative pressure regulator 1 further includes an airtight ring 40. The switching cylinder 20 is provided with a circular groove 220 at the periphery of the side passages 22, and the circular groove 220 is configured as, for example, an elliptical groove. The airtight ring 40 is disposed in the annular groove 220 and abuts against the inner wall surface of the accommodating groove 11.
In addition, the ventilation switching structure of the negative pressure regulator 1 further includes a gasket 50. The switching cylinder 20 is provided with a groove 200 on a side facing the main pipe 12. The gasket 50 is disposed in the groove 200 and abuts a top surface of the main tube 12.
Fig. 5 is a schematic cross-sectional view of the hook of the switching cylinder extending into the limit groove of the valve body. The valve body 10 in the present utility model is provided with a pair of limit grooves 111. The pair of limiting grooves 111 are arranged at intervals on the top edge of the main pipe 12, are respectively arranged as arc grooves and have arc angles slightly smaller than 180 degrees. Accordingly, when the switching cylinder 20 rotates relative to the valve body 10, the hook 25 of the switching cylinder 20 moves along with the limiting groove 111, and the rotation angle of the switching cylinder 20 is limited.
Referring to fig. 6, a combined cross-sectional view of the switching cylinder of the present utility model disposed in the container is shown. The switching cylinder 20 includes a main passage 21, two side passages 22, a blocking wall 23, and a partition plate 24 for partitioning the side passages 22. Each side passage 22 is provided in a fan shape and communicates with the main passage 21. The blocking wall 23 is located at one side of the two side channels 22.
The valve body 10 comprises a container 11, two branched pipes 13 and a plurality of ventilation holes 14. The switching cylinder 20 is rotatably disposed in the accommodating groove 11. The switching cylinder 20 can select the rotation direction and the rotation angle to cover the vent hole 14 on one side by the blocking wall 23, and further supply air to the branched pipe 13 on one side.
When the switching cylinder 20 is not rotated and is positioned as shown in fig. 6, the blocking wall 23 does not cover any of the ventilation holes 14, and the branched pipes 13 on both sides are used for supplying air.
Referring to fig. 7 to 9, schematic views of the knob according to the present utility model in different cross-sectional views in the same state are shown. The ventilation switching structure of the negative pressure regulator 1 of the present utility model can switch ventilation by turning the knob 30. When the knob 30 is turned counterclockwise (fig. 7), the pair of hooks 25 move along with the pair of limiting grooves 111; after the knob 30 is turned to a certain angle, the pair of hooks 25 are blocked by the edge of the limiting slot 111 and cannot rotate any more (fig. 8). At this time, the blocking wall 23 shields the left vent hole 14, so that the right branch pipe 13 cannot be used; the gas flows from the main passage 21 into the side passage 22 and then flows from the right vent hole 14 into the right branch pipe 13, thereby switching ventilation.
Similarly, when the knob 30 is rotated clockwise, the blocking wall 23 shields the right vent hole 14, so that the right branch pipe 13 cannot be used; the gas flows from the main passage 21 into the side passage 22 and then flows from the left vent hole 14 into the left branch pipe 13, thereby achieving the purpose of ventilation switching.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the utility model, but rather to limit the scope of the utility model to the equivalents of the claims to which the utility model pertains.
Claims (10)
1. A ventilation switching structure of a negative pressure regulator for connecting a negative pressure instrument, comprising:
the valve body comprises a containing groove, a main pipe and a pair of branch pipes, the main pipe is used for connecting the negative pressure instrument and the containing groove, and the pair of branch pipes are correspondingly positioned at two side edges of the main pipe;
The switching cylinder is rotatably arranged in the accommodating groove and comprises a main channel, a plurality of side channels and a blocking wall, wherein the side channels are communicated with the main channel and are arranged at one side of the blocking wall at intervals; and
The knob is combined on the switching cylinder and drives the switching cylinder to rotate so that the blocking wall can selectively block one of the branched pipes.
2. The structure for switching ventilation of a negative pressure regulator according to claim 1, wherein the valve body is provided with a pair of limiting grooves on a bottom side of the receiving groove, the pair of limiting grooves are arranged at a top edge of the main pipe at intervals, and each limiting groove is provided as an arc groove and has an arc angle smaller than 180 degrees.
3. The ventilation switching structure of the negative pressure regulator according to claim 2, wherein the switching cylinder comprises a pair of hooks located at opposite sides of the main channel and respectively engaged in the pair of limiting grooves.
4. The ventilation switching structure of the negative pressure regulator according to claim 3, wherein the valve body is formed with a flange at one side of each limit groove, and each hook is fastened on the flange.
5. The structure of claim 1, wherein each side channel is a fan-shaped slot, and the switching cylinder is formed with a partition between adjacent side channels.
6. The structure of claim 1, further comprising an airtight ring, wherein the switching cylinder has a ring groove at the periphery of the plurality of side channels, and the airtight ring is disposed in the ring groove and abuts against the inner wall surface of the container.
7. The structure of claim 6, wherein the annular groove is an elliptical groove.
8. The structure for switching ventilation of a negative pressure regulator according to claim 1, wherein the valve body is provided with a plurality of ventilation holes provided on an inner wall of the vessel and corresponding to the positions of the pair of branch pipes.
9. The structure of claim 8, wherein the plurality of vent holes are arranged in pairs at the positions where the branch pipes are connected to the container, and the valve body is formed with a baffle between adjacent vent holes.
10. The structure of claim 1, further comprising a gasket, wherein the switching cylinder has a groove on a side facing the main pipe, and the gasket is disposed in the groove and abuts against a top surface of the main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947902.7U CN220967654U (en) | 2023-07-24 | 2023-07-24 | Ventilation switching structure of negative pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947902.7U CN220967654U (en) | 2023-07-24 | 2023-07-24 | Ventilation switching structure of negative pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220967654U true CN220967654U (en) | 2024-05-17 |
Family
ID=91056563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321947902.7U Active CN220967654U (en) | 2023-07-24 | 2023-07-24 | Ventilation switching structure of negative pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220967654U (en) |
-
2023
- 2023-07-24 CN CN202321947902.7U patent/CN220967654U/en active Active
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| GR01 | Patent grant |