CN208831814U - Check valve assembly - Google Patents
Check valve assembly Download PDFInfo
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- CN208831814U CN208831814U CN201821240441.9U CN201821240441U CN208831814U CN 208831814 U CN208831814 U CN 208831814U CN 201821240441 U CN201821240441 U CN 201821240441U CN 208831814 U CN208831814 U CN 208831814U
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- Prior art keywords
- plug
- check valve
- valve assembly
- elastic parts
- combined pipe
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Abstract
The utility model provides a kind of check valve assembly, including a combined pipe and in the combined pipe and the elastic parts and plug that are disposed adjacent, the plug is close to the plug pedestal that one end of the elastic parts is that diameter is equal to maximum gauge in the combined pipe, one end far from the elastic parts is plug ontology, and it is that size matches place with the plug body dimension in water inlet line that the combined pipe, which docks place with the plug ontology,.Elastic parts and plug need to only be packed into combined pipe, then screw thread between two ontologies screwed by check valve assembly provided by the utility model.Determine whether plug ontology enters in water inlet line by the direction of the comprehensive power generated to plug of the contractility and water flow pressure of elastic parts, to determine the conducting and closing of check valve, this structural volume is small, and assembling is simple, it is easy to maintenance, only need to change part of damage.In addition in-site installation is easy, reduces production, use and maintenance cost.
Description
Technical field
The utility model relates to disc tube reverse osmosis (dt-ro) membrane module system more particularly to a kind of check valve assemblies.
Background technique
In sewage disposal device, the case where designing water flow route, is frequently encountered using check valve.Common is unidirectional
There are many plant structure for valve.
Such as existing patent CN201220049159.9 (Authorization Notice No.: CN202484370U, authorized announcement date: 2012
On October 10, in) a kind of check valve assembly and pump and water purification installation using the component are disclosed, Fig. 1 is please referred to, the list
It include 1, two water transport channel 4 and 5 of valve body, two spools 6 and 7 and pendulum 8 to valve module, wherein water transport channel 4 and spool
6 constitute a check valve；And water transport channel 5 and spool 7 constitute another check valve.Pendulum 8 is shared as two check valves
Return mechanism.Two check valves, one auxiliary opening and closing of pendulum 8, is realized by discharge pressure and is linked, keep the pump housing in use
Realize the movement of Inlet and outlet water.Wherein also communicated with the channel for water inlet in water transport channel 4 and 5, piston upwards when
It waits, the channel of the water inlet is to close.The patent replaces the elastomeric element being usually separately positioned in check valve using pendulum 8,
To reduce number of components, volume and weight is saved.But the check valve that the patent provides is still complex, due to water purification
A large amount of check valve would generally be used in equipment, if each check valve is so complicated, whole equipment volume is larger, the sky of occupancy
Between it is big, production, the cost of transport are also higher.
Utility model content
The utility model provides a kind of check valve assembly, for overcoming disadvantages mentioned above.
A kind of in order to achieve the above object, the utility model provides check valve assembly, including a combined pipe and it is located at institute
The elastic parts and plug in combined pipe and being disposed adjacent are stated, the plug is diameter etc. close to one end of the elastic parts
In the plug pedestal of maximum inner diameter in the combined pipe, one end far from the elastic parts is plug ontology, the combination
The pipeline docked in pipeline with the plug ontology is defined as water inlet line, and it is water inlet line that place is docked with the plug ontology
Middle shape matches place with the plug body shape.
Preferably, combined pipe internal diameter in place of corresponding with end of the elastic parts far from the plug subtracts
The maximum width of the small to less than described elastic parts.
Preferably, the combined pipe successively includes upper body and lower body, the upper body is threaded in described
One end of lower body is connected to the pipeline inside the two.
Preferably, the water inlet line is located in the upper body, the elastic parts and plug are located at described lower
In vivo, the internal diameter of the pipeline in the lower body is greater than the internal diameter of the pipeline in the upper body.
Preferably, also setting up one end that a lock nut is set in the combined pipe by screw thread.
Preferably, the end of the upper body and the lower body is all provided with thread, the lock nut is set in
End of the upper body far from the lower body.
Preferably, the elastic parts is spring.
Preferably, being provided with the limit grid extended towards the elastic parts direction, the limit on the plug pedestal
The length direction and the combined pipe of position grid are axially parallel.
Preferably, the limit grid are around the equally distributed limited post of plug base center axis.
Preferably, the plug ontology is round table-like or bullet shape.
Compared with prior art, the utility model provides a kind of check valve assembly, including a combined pipe and is located at institute
The elastic parts and plug in combined pipe and being disposed adjacent are stated, the plug is diameter etc. close to one end of the elastic parts
In the plug pedestal of maximum inner diameter in the combined pipe, one end far from the elastic parts is plug ontology, the combination
The pipeline docked in pipeline with the plug ontology is defined as water inlet line, and it is water inlet line that place is docked with the plug ontology
Middle shape matches place with the plug body shape.Check valve assembly provided by the utility model, only need to by elastic parts and
Plug is packed into combined pipe, then screw thread between two ontologies is screwed.Pass through the contractility and water flow pressure of elastic parts
Power integrates the direction of the power generated to plug to determine whether plug ontology enters in water inlet line, to determine check valve
Conducting and closing, this structural volume is small, and assembling is simple, easy to maintenance, when ging wrong, only needs to change part of damage.Separately
Outer in-site installation is easy, reduces production, use and maintenance cost.
Detailed description of the invention
Fig. 1 is the check valve assembly structural schematic diagram provided in the prior art；
Fig. 2 is check valve assembly structural schematic diagram provided by the utility model；
Fig. 3 is check valve assembly explosive view provided by the utility model；
Fig. 4 is schematic diagram of internal structure when check valve provided by the utility model is connected；
Schematic diagram of internal structure when Fig. 5 is closed check valve provided by the utility model.
In Fig. 1: 1- valve body, 2,3- valve seat, 4,5- water transport channel, 6,7- spool, 8- pendulum, 9- pivot, 10- swing rod, 11-
Handle, 12,13- plunger pump, 14,15- piston；
In Fig. 2~Fig. 5: the outer spiral shell of 100- combined pipe, 110- upper body, 111- upper body inner tube, 112- upper body inner tube
Line, 120- lower body, 121- lower body inner tube, 122- lower body inner tube external screw thread, 200- spring, 300- plug, 310- plug
Pedestal, 320- plug ontology, 330- limit grid, 331- limited post, 400- lock nut.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.
Please refer to Fig. 2 to Fig. 5, the utility model provides a kind of check valve assembly, including a combined pipe 100 and is located at
In the combined pipe 100 and the elastic parts and plug 300 that are disposed adjacent, the plug 300 is close to the elastic parts
One end is the plug pedestal 310 that diameter is equal to maximum gauge in the combined pipe 100, and one end far from the elastic parts is
Plug ontology 320 docks place in the combined pipe 100 with the plug ontology 320 and is defined as water inlet line, and described stifled
The head docking place of ontology 320 is that size matches place with 320 size of plug ontology in water inlet line.
Specifically, referring to figure 3., in the present embodiment, combined pipe 100 successively includes upper body 110 and lower body
120, one end that the upper body 110 is threaded in the lower body 120 makes the pipeline inside the two be connected to this structure of
Specific manifestation in the present embodiment are as follows: upper body 110 is a boring pipeline, has been extended to form to 120 one end of lower body
One upper body inner tube 111,111 periphery of upper body inner tube are provided with upper body inner tube external screw thread 112, lower body 120 and upper body
The corresponding place of inner tube external screw thread 112 is also provided with corresponding internal screw thread, so that upper body inner tube 111 is fixed on by screw thread rotation
In lower body 120.
It is greater than the part of upper body inner tube 111 with internal diameter in lower body 120, elastic parts and plug 300 are located at should
In part, in end of the elastic parts far from plug 300, the internal diameter inside lower body 120 at this, which is progressively smaller until, to be less than
The maximum width of elastic parts.Specifically, in the present embodiment, elastic parts is specially in spring 200 namely lower body 120
Internal diameter at this is gradually reduced to less than the diameter of spring 200, so that 200 one end of spring resists 120 inner wall of lower body, separately
One end can resist plug 300, so as to give 300 thrust of plug.
Preferably, being provided on the plug pedestal 310 towards the elastic parts direction and being extended please continue to refer to Fig. 3
Limit grid 330, the length direction of the limit grid 330 is parallel with 100 axial direction of the combined pipe, specifically, the limit
Grid 330 be around the equally distributed limited post 331 of 310 central axis of plug pedestal, in the present embodiment, limited post 331 formed
Cylinder outer diameter is slightly less than spring 200, and above-mentioned limited post 331 protrudes into spring 200, so that spring 200 keeps same with plug pedestal 310
Axis, so that 310 uniform force of plug pedestal.
Correspondingly, in order to keep the thrust of spring 200 to transmit uniformly, plug ontology 320 is also co-axially located at plug pedestal
Corresponding with upper body inner tube 111 on 310, the direction of motion is also axial parallel with upper body inner tube 111.
Also, in the present embodiment, plug ontology 320 is in bullet shape or round table-like, and maximum outside diameter is equal to upper
The internal diameter of ontology inner tube 111, but it is less than the diameter of plug pedestal 310.If plug ontology 320 is in a circular table shape, in the upper body
Pipe 111 docked with the plug ontology 320 place shape be also provided with into match with plug ontology 320 it is round table-like；Work as plug
When ontology 320 is bullet shape, no setting is required the specific shape of upper body inner tube 111, but seep water in order to prevent, it need to be in plug
Sealing ring is arranged on ontology 320.
Based on the internal structure of above-mentioned check valve assembly, check valve assembly inner working principle are as follows: referring to figure 4., work as water
Stream direction is when flowing to upper body 110 from lower body 120, thrust and water flow of the plug pedestal 310 by the elongation of spring 200
Pressure, so that plug ontology 320 enters in upper body inner tube 111, in the present embodiment, plug ontology 320 enters in upper body
In pipe 111, since plug ontology 320 docks place shape matching with upper body inner tube 111, and the diameter of plug pedestal 310 is big
Cause plug 300 will be in upper body so that plug ontology 320 enters in upper body inner tube 111 in the diameter of plug ontology 320
Pipe 111 blocks, and water flow cannot be introduced into upper body inner tube 111, and check valve is in close state；Referring to figure 5., when water (flow) direction from
When upper body 110 flows to lower body 120, plug 300 is by water flow pressure at upper body 110 at this time, to lower body 120 at move
Dynamic, 300 other side of plug is resisted by spring 200, and when water flow pressure is greater than the convergent force of spring 200, spring 200 starts to receive
Contracting, plug ontology 320 leave upper body inner tube 111, form the gap that water supply stream passes through between the two, unidirectional valve body is since then
Conducting.
Preferably, side of the lower body 120 far from upper body 110 has also extended to form lower body inner tube 121, that is, on
It states in place of 120 internal diameter of lower body is gradually reduced and continues to extend to form lower body inner tube 121 in this direction, the lower body inner tube
Lower body inner tube external screw thread 122 is also equipped on 121 excircles, similarly, upper body inner tube 111 is in separate lower body 120
End also forms external screw thread, and lock nut 400 is arranged at this.
Check valve assembly provided by the utility model only needs 300 3 kinds of combined pipe 100, elastic parts and plug structures
It cooperates, plug is determined by the direction of the comprehensive power generated to plug 300 of the contractility and water flow pressure of elastic parts
Whether ontology 320 enters in water inlet line, to determine the conducting and closing of check valve, this structure is relatively simple, occupies
Small in size, production and installation are all relatively simple, reduce production and application cost.
Obviously, it is practical new without departing from this can to carry out various modification and variations to utility model by those skilled in the art
The spirit and scope of type.If these modifications and variations of the present invention belong to the claims of the present invention and its equivalent technology
Within the scope of, then the utility model is also intended to including these modification and variations.
Claims (10)
1. a kind of check valve assembly, which is characterized in that including a combined pipe and in the combined pipe and be disposed adjacent
Elastic parts and plug, the plug close to one end of the elastic parts be diameter be equal to the combined pipe in most imperial palace
The plug pedestal of diameter, one end far from the elastic parts are plug ontology, in the combined pipe with the plug ontology pair
The pipeline connect is defined as water inlet line, and it is shape and described this bodily form of plug in water inlet line that place is docked with the plug ontology
Shape matching place.
2. check valve assembly as described in claim 1, which is characterized in that the combined pipe is separate with the elastic parts
The corresponding place internal diameter in the end of the plug is decreased to less than the maximum width of the elastic parts.
3. check valve assembly as claimed in claim 2, which is characterized in that the combined pipe successively includes upper body and lower
Body, one end that the upper body is threaded in the lower body are connected to the pipeline inside the two.
4. check valve assembly as claimed in claim 3, which is characterized in that the water inlet line is located in the upper body, institute
It states elastic parts and plug is located in the lower body, the internal diameter of the pipeline in the lower body is greater than the pipeline in the upper body
Internal diameter.
5. check valve assembly as claimed in claim 4, which is characterized in that also set up a lock nut by screw thread and be set in institute
State one end of combined pipe.
6. check valve assembly as claimed in claim 5, which is characterized in that the end of the upper body and the lower body is all set
It is equipped with thread, the lock nut is set in end of the upper body far from the lower body.
7. check valve assembly as described in claim 1, which is characterized in that the elastic parts is spring.
8. check valve assembly as described in claim 1, which is characterized in that be provided on the plug pedestal towards the elasticity
The limit grid that component direction extends, the length direction and the combined pipe of the limit grid are axially parallel.
9. check valve assembly as described in claim 8, which is characterized in that the limit grid are around plug base center axis
Equally distributed limited post.
10. check valve assembly as described in claim 1, which is characterized in that the plug ontology is round table-like or sub warhead
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821240441.9U CN208831814U (en) | 2018-08-02 | 2018-08-02 | Check valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821240441.9U CN208831814U (en) | 2018-08-02 | 2018-08-02 | Check valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831814U true CN208831814U (en) | 2019-05-07 |
Family
ID=66308092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821240441.9U Active CN208831814U (en) | 2018-08-02 | 2018-08-02 | Check valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758022A (en) * | 2018-08-02 | 2018-11-06 | 昆山荣兰贸易有限公司 | Check valve assembly |
-
2018
- 2018-08-02 CN CN201821240441.9U patent/CN208831814U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758022A (en) * | 2018-08-02 | 2018-11-06 | 昆山荣兰贸易有限公司 | Check valve assembly |
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