CN211371391U - Low-pressure drain valve - Google Patents
Low-pressure drain valve Download PDFInfo
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- CN211371391U CN211371391U CN201921865235.1U CN201921865235U CN211371391U CN 211371391 U CN211371391 U CN 211371391U CN 201921865235 U CN201921865235 U CN 201921865235U CN 211371391 U CN211371391 U CN 211371391U
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- pressure drain
- positioning piece
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Abstract
The utility model discloses a low-pressure drain valve, which comprises a valve body, a positioning component and a drainage mechanism; the two ends of the valve body are respectively provided with a water inlet and a water outlet, and the inner wall of the valve body is provided with a circumferential bulge; the positioning assembly comprises an upper positioning piece and a lower positioning piece, wherein the upper positioning piece is provided with an upper positioning hole, and the lower positioning piece is provided with a lower positioning hole; the drainage mechanism comprises a valve core shaft, a valve cover, a sealing element and an elastic element, wherein two ends of the valve core shaft are respectively in sliding fit with an upper positioning hole and a lower positioning hole, the edge of the valve cover is matched with the annular protrusion, the sealing element and the valve cover are fixedly connected with the surface of the annular protrusion, and two ends of the elastic element are respectively abutted to the valve cover and the lower positioning element. The low-pressure drain valve is closed when the water pressure in the cleaning pipeline is high, and when the water pressure in the cleaning pipeline is reduced after the cleaning is finished, the low-pressure drain valve is opened, so that residual water in the cleaning pipeline is emptied, and the freezing loss of the cleaning pipeline is effectively prevented.
Description
Technical Field
The utility model relates to a pipeline drainage field, more specifically relates to a low pressure drain valve.
Background
With the rapid development of information technology, the safe operation and maintenance of computer information rooms are also very important. The precise air conditioner of the computer information machine room is also a necessary device for temperature and humidity guarantee of the machine room, and alarm shutdown of the precise air conditioner is caused by blockage of radiating fins of an outdoor machine of the precise air conditioner, so that a server of the whole information machine room and even production are greatly influenced.
The fins of the air-conditioning outdoor unit are easily blocked by flying salix populi catkins, so that the heat dissipation difficulty is caused to alarm and stop working of the precision air-conditioning unit. When the cleaning operation is performed by adopting the cleaning system of the air conditioner outdoor unit, the cleaning pipeline cannot be prevented from freezing through the package, so that the risk of freezing damage of the cleaning pipeline is often encountered.
To avoid freezing damage to the purge line, it is necessary to empty the purge line of residual water after the purge operation is complete. However, the conventional drain valve is usually opened when the pressure in the pipe is high, and closed when the pressure in the pipe is low, so that residual water in the cleaning pipe cannot be drained after cleaning is completed.
Therefore, how to provide a drain valve capable of quickly and efficiently draining the residual water in the cleaning pipeline becomes a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can empty the new technical scheme of the low pressure drain valve of remaining water in the washing pipeline fast high-efficiently.
According to the utility model discloses an aspect provides a low pressure drain valve.
The low-pressure drain valve comprises a valve body, a positioning assembly and a drainage mechanism; wherein the content of the first and second substances,
a water inlet and a water outlet are respectively arranged at two ends of the valve body, and an annular bulge is arranged on the inner wall of the valve body;
the positioning assembly comprises an upper positioning piece and a lower positioning piece, wherein an upper positioning hole is formed in the upper positioning piece, two ends of the upper positioning piece are fixedly connected with the inner wall of the valve body, a lower positioning hole is formed in the lower positioning piece, two ends of the lower positioning piece are fixedly connected with the inner wall of the valve body, the upper positioning piece is arranged corresponding to the water inlet, and the lower positioning piece is arranged corresponding to the water outlet;
drainage mechanism includes valve core axle, valve gap, sealing member and elastic component, the both ends of valve core axle respectively with go up the locating hole with locating hole sliding fit down, the valve gap the sealing member with the elastic component all sets up go up the setting element with between the setting element down, the valve gap with valve core axle fixed connection, just the edge of valve gap with the annular arch cooperatees, the sealing member with the valve gap faces the bellied fixed surface of annular is connected, the both ends of elastic component respectively with the valve gap with the setting element offsets down, with to the valve gap provides the orientation the effort of water inlet.
Optionally, the valve body includes valve body and lower valve body, be equipped with connecting portion on the inner wall of going up the valve body, the water inlet is located go up on the valve body, be equipped with connecting portion down on the outer wall of lower valve body, the delivery port is located down on the valve body, go up connecting portion with connecting portion fixed connection down.
Optionally, the upper positioning element is located on the upper valve body, and the lower positioning element and the annular protrusion are located on the lower valve body.
Optionally, the inner diameter of the region between the upper positioning piece and the water inlet of the upper valve body is smaller than the inner diameter of the region between the upper positioning piece and the upper connecting part of the upper valve body.
Optionally, the upper connecting part and the lower connecting part are in threaded fit connection.
Optionally, the circumferential protrusion includes a protruding portion and a lower concave portion, the protruding portion extends toward the water inlet, the lower concave portion is adjacent to the outer surface of the valve body relative to the protruding portion, and the edge of the valve cover is matched with the protruding portion.
Optionally, the drainage mechanism still includes the buffering lid, the edge of buffering lid with the side fixed connection of bellying, be equipped with elastic component hole and dashpot on the buffering lid, the opening of dashpot faces the valve gap, just the elastic component hole is located on the diapire of dashpot.
Optionally, an upper supporting plate surrounding the upper positioning hole is arranged on the upper positioning part, a shaft sleeve is arranged on the valve core shaft, one end of the shaft sleeve is fixedly connected with the valve cover, and the other end of the shaft sleeve is correspondingly arranged with the upper supporting plate.
Optionally, the elastic member is a compression spring, and the compression spring is sleeved on the valve core shaft;
and a lower supporting plate surrounding the lower positioning hole is arranged on the lower positioning piece, and one end of the compression spring is abutted against the lower supporting plate.
Optionally, the sealing element is made of wool fabric.
The low-pressure drain valve is closed when the water pressure in the cleaning pipeline is high, and when the water pressure in the cleaning pipeline is reduced after the cleaning is finished, the low-pressure drain valve is opened, so that residual water in the cleaning pipeline is emptied, and the freezing loss of the cleaning pipeline is effectively prevented.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of an embodiment of a low pressure drain valve of the present disclosure.
The figures are labeled as follows:
the valve comprises a valve body-1, a water inlet-11, a water outlet-12, a circumferential bulge-13, a bulge-131, a lower concave part-132, an upper valve body-14, a lower valve body-15, an upper positioning piece-2, an upper supporting plate-20, a lower positioning piece-3, a lower supporting plate-30, a valve core shaft-4, a shaft sleeve-40, a valve cover-5, a sealing piece-6, an elastic piece-7, a buffer cover-8 and a buffer groove-80.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, the present disclosure provides a low pressure drain valve including a valve body 1, a positioning assembly, and a drain mechanism.
The two ends of the valve body 1 are respectively provided with a water inlet 11 and a water outlet 12. The inner wall of the valve body 1 is provided with a circumferential bulge 13.
The positioning assembly comprises an upper positioning member 2 and a lower positioning member 3. An upper positioning hole is arranged on the upper positioning piece 2, and two ends of the upper positioning piece 2 are fixedly connected with the inner wall of the valve body 1. The lower positioning part 3 is provided with a lower positioning hole, and two ends of the lower positioning part 3 are fixedly connected with the inner wall of the valve body 1. The above-mentioned fixed connection can be realized through welding or integrated into one piece mode etc.. The upper positioning piece 2 is arranged corresponding to the water inlet 11, and the lower positioning piece 3 is arranged corresponding to the water outlet 12. I.e. the upper positioning member 2 is adjacent to said inlet opening 11 with respect to the lower positioning member 3. In specific implementation, the structures of the upper positioning piece 2 and the lower positioning piece 3 should not obstruct the water inlet of the water inlet 11 and the water outlet of the water outlet 12.
The drain mechanism includes a spool shaft 4, a valve cover 5, a seal 6, and an elastic member 7. The two ends of the valve core shaft 4 are respectively in sliding fit with the upper positioning hole and the lower positioning hole. The valve cover 5, the sealing member 6 and the elastic member 7 are disposed between the upper positioning member 2 and the lower positioning member 3. The bonnet 5 is fixedly connected to the spool shaft 4 so that the bonnet 5 and the spool shaft 4 move synchronously within the valve body 1. The fixed connection between the valve cover 5 and the valve core shaft 4 can be realized by welding or integral molding. The edge of the valve cover 5 cooperates with a circumferential projection 13. The sealing element 6 is fixedly connected to the surface of the valve cover 5 facing the circumferential projection 13. The fixed connection between the sealing member 6 and the valve cover 5 may be achieved by gluing or the like. Both ends of the elastic member 7 respectively abut against the valve cap 5 and the lower positioning member 3 to provide the valve cap 5 with a force toward the water inlet 11. The elastic member 7 may be, for example, a spring or an elastic arm, etc.
When the low-pressure drain valve is used, if the cleaning pipeline is in a use state and the water pressure in the cleaning pipeline is high, the low-pressure drain valve is closed through the cooperation between the valve cover 5 and the annular bulge 13; if the cleaning pipeline is in a non-use state and the water pressure in the cleaning pipeline is low, the valve cover 5 leaves the annular bulge 13, so that the low-pressure drain valve is opened, and the residual water in the cleaning pipeline is emptied.
The low-pressure drain valve is closed when the water pressure in the cleaning pipeline is high, and when the water pressure in the cleaning pipeline is reduced after the cleaning is finished, the low-pressure drain valve is opened, so that residual water in the cleaning pipeline is emptied, and the freezing loss of the cleaning pipeline is effectively prevented.
In one embodiment of the low pressure drain valve of the present disclosure, the valve body 1 includes an upper valve body 14 and a lower valve body 15. An upper connecting part is arranged on the inner wall of the upper valve body 14, and the water inlet 11 is positioned on the upper valve body 14. The outer wall of the lower valve body 15 is provided with a lower connecting part, and the water outlet 12 is positioned on the lower valve body 15. The upper connecting part and the lower connecting part are fixedly connected, and the fixed connection between the upper connecting part and the lower connecting part can be realized through welding, threaded connection and other modes. The valve body 1 with the structure is convenient to assemble and low in cost.
Further, the upper positioning member 2 is located on the upper valve body 14, and the lower positioning member 3 and the annular protrusion 13 are located on the lower valve body 15.
Further, the inner diameter of the area of the upper valve body 14 between the upper positioning member 2 and the water inlet 11 is smaller than the inner diameter of the area of the upper valve body 14 between the upper positioning member 2 and the upper connecting portion. The valve body 1 with the structure can form a larger space between the upper positioning piece 2 and the lower positioning piece 3, thereby ensuring that the low-pressure drain valve is closed more stably and reliably when the water pressure in the cleaning pipeline is higher.
Further, the upper connecting part and the lower connecting part are in threaded fit connection.
In one embodiment of the low pressure drain valve of the present disclosure, in order to improve the sensitivity of the low pressure drain valve, the circumferential projection 13 includes a projection 131 and a depressed portion 132. The projection 131 extends toward the water inlet 11. The lower recess 132 is adjacent to the outer surface of the valve body 1 with respect to the boss 131, and the edge of the bonnet 5 is fitted with the boss 131.
Further, the drainage mechanism further comprises a buffer cover 8. The edge of the buffering cover 8 is fixedly connected with the side surface of the protruding part 131, and the fixed connection can be realized by welding or integral molding. The buffer cover 8 is provided with an elastic member hole and a buffer groove 80. The opening of the buffer reservoir 80 faces the valve cap 5, and the elastic member hole is located on the bottom wall of the buffer reservoir 80. A buffer chamber between the valve cover 5 and the buffer cover 8 may be formed by the buffer groove 80, thereby allowing the low pressure drain valve to be more smoothly opened.
In one embodiment of the low pressure drain valve of the present disclosure, the upper positioning member 2 is provided with an upper support plate 20 surrounding the upper positioning hole. The valve core shaft 4 is provided with a shaft sleeve 40, one end of the shaft sleeve 40 is fixedly connected with the valve cover 5, and the other end of the shaft sleeve 40 is arranged corresponding to the upper support plate 20. When the end surface of the shaft sleeve 40 abuts against the upper support plate 20, the valve cover 5 and the valve core shaft 4 stop moving, so that the moving stroke of the valve cover 5 in the valve body 1 is effectively limited, and the service life of the low-pressure drain valve is prolonged.
In one embodiment of the low pressure drain valve of the present disclosure, the elastic member 7 is a compression spring, and the compression spring is sleeved on the valve core shaft 4. The lower positioning part 3 is provided with a lower supporting plate 30 surrounding the lower positioning hole, and one end of the compression spring is abutted against the lower supporting plate 30.
In one embodiment of the low pressure drain valve of the present disclosure, the sealing member 6 is made of woolen cloth.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A low-pressure drain valve is characterized by comprising a valve body, a positioning assembly and a drainage mechanism; wherein the content of the first and second substances,
a water inlet and a water outlet are respectively arranged at two ends of the valve body, and an annular bulge is arranged on the inner wall of the valve body;
the positioning assembly comprises an upper positioning piece and a lower positioning piece, wherein an upper positioning hole is formed in the upper positioning piece, two ends of the upper positioning piece are fixedly connected with the inner wall of the valve body, a lower positioning hole is formed in the lower positioning piece, two ends of the lower positioning piece are fixedly connected with the inner wall of the valve body, the upper positioning piece is arranged corresponding to the water inlet, and the lower positioning piece is arranged corresponding to the water outlet;
drainage mechanism includes valve core axle, valve gap, sealing member and elastic component, the both ends of valve core axle respectively with go up the locating hole with locating hole sliding fit down, the valve gap the sealing member with the elastic component all sets up go up the setting element with between the setting element down, the valve gap with valve core axle fixed connection, just the edge of valve gap with the annular arch cooperatees, the sealing member with the valve gap faces the bellied fixed surface of annular is connected, the both ends of elastic component respectively with the valve gap with the setting element offsets down, with to the valve gap provides the orientation the effort of water inlet.
2. The low pressure drain valve according to claim 1, wherein the valve body comprises an upper valve body and a lower valve body, an upper connecting portion is arranged on the inner wall of the upper valve body, the water inlet is positioned on the upper valve body, a lower connecting portion is arranged on the outer wall of the lower valve body, the water outlet is positioned on the lower valve body, and the upper connecting portion is fixedly connected with the lower connecting portion.
3. The low pressure drain valve according to claim 2, wherein the upper positioning member is located on the upper valve body, and the lower positioning member and the circumferential projection are located on the lower valve body.
4. The low pressure drain valve according to claim 3, wherein an inner diameter of a region of the upper valve body between the upper positioning member and the water inlet port is smaller than an inner diameter of a region of the upper valve body between the upper positioning member and the upper connecting portion.
5. The low pressure drain valve according to claim 2, wherein the upper and lower coupling portions are threadedly engaged.
6. The low pressure drain valve according to claim 1, wherein the circumferential projection comprises a raised portion extending in the direction of the water inlet and a lower recessed portion adjacent the outer surface of the valve body relative to the raised portion, the edge of the valve cover cooperating with the raised portion.
7. The low pressure drain valve according to claim 6, wherein the drain mechanism further comprises a buffering cover, the edge of the buffering cover is fixedly connected with the side surface of the protruding portion, an elastic member hole and a buffering groove are arranged on the buffering cover, the opening of the buffering groove faces the valve cover, and the elastic member hole is arranged on the bottom wall of the buffering groove.
8. The low pressure drain valve according to claim 1, wherein the upper positioning member is provided with an upper support plate surrounding the upper positioning hole, the valve core shaft is provided with a shaft sleeve, one end of the shaft sleeve is fixedly connected with the valve cover, and the other end of the shaft sleeve is arranged corresponding to the upper support plate.
9. The low pressure drain valve according to claim 1, wherein the elastic member is a compression spring, and the compression spring is sleeved on the valve core shaft;
and a lower supporting plate surrounding the lower positioning hole is arranged on the lower positioning piece, and one end of the compression spring is abutted against the lower supporting plate.
10. The low pressure drain valve of claim 1 wherein the sealing member is a wool fabric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865235.1U CN211371391U (en) | 2019-11-01 | 2019-11-01 | Low-pressure drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865235.1U CN211371391U (en) | 2019-11-01 | 2019-11-01 | Low-pressure drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211371391U true CN211371391U (en) | 2020-08-28 |
Family
ID=72151428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921865235.1U Active CN211371391U (en) | 2019-11-01 | 2019-11-01 | Low-pressure drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211371391U (en) |
-
2019
- 2019-11-01 CN CN201921865235.1U patent/CN211371391U/en active Active
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