CN206496045U - Buckle-type compact check valve and plunger pump - Google Patents
Buckle-type compact check valve and plunger pump Download PDFInfo
- Publication number
- CN206496045U CN206496045U CN201720180265.3U CN201720180265U CN206496045U CN 206496045 U CN206496045 U CN 206496045U CN 201720180265 U CN201720180265 U CN 201720180265U CN 206496045 U CN206496045 U CN 206496045U
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- China
- Prior art keywords
- check valve
- valve seat
- buckle
- type compact
- way valve
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Abstract
A kind of buckle-type compact check valve and plunger pump, check valve include unidirectional valve bonnet and one-way valve seat, and unidirectional valve bonnet is fixed on one-way valve seat afterbody, and the end face that both coordinate is respectively equipped with back-off and fastened by the axial grafting of back-off；Spring and check valve sheet are unidirectionally provided between valve bonnet and one-way valve seat, check valve sheet is compressed and covered on the delivery port of one-way valve seat afterbody by spring.The utility model provides a kind of check valve, and one-way valve seat and unidirectional valve bonnet are fixed by manner, and structure is more simple and reliable.
Description
Technical field
The utility model belongs to cleaning machine technical field, refers in particular to plunger pump and its buckle-type compact in a kind of cleaning machine
Check valve.
Background technology
Check valve assembling structure in existing cleaning machine on plunger pump is complicated, generally fixes each by the way of threaded connection
Part；In plunger pump, the reciprocating motion of plunger causes chamber pressure Circularly liftable, easily causes thread looseness, causes unidirectional
Defective valve.
The content of the invention
The purpose of this utility model is to provide a kind of buckle-type compact check valve, and one-way valve seat is fixed by manner
With unidirectional valve bonnet, structure is more simple and reliable.
What the purpose of this utility model was realized in：A kind of buckle-type compact check valve, including unidirectional valve bonnet and list
To valve seat, unidirectional valve bonnet is fixed on one-way valve seat afterbody, and the end face that both coordinate is respectively equipped with back-off and axially inserted by back-off
Connect fastening；Spring and check valve sheet are unidirectionally provided between valve bonnet and one-way valve seat, check valve sheet is compressed and covered unidirectional by spring
On the delivery port of valve seat afterbody.
It is preferred that, the back-off structure is：One-way valve seat afterbody is raised provided with annular, and annular convex head is provided with outer
Flange；The check valve capouch portion is provided with outer annular protrusion, and outer annular protrusion head is provided with in-flanges；Annular projection stretches into outer
Annular protrusion endoporus, flanging and in-flanges are mutually twisted, and outer annular protrusion is pushed against one-way valve seat tail end face.
It is preferred that, the raised female coaxial with one-way valve seat of the annular, check valve sheet is resisted against annular punching shaft
In the opening in portion.
It is preferred that, the opening of the annular convex head is provided with taper surface, and the check valve sheet periphery is provided with corresponding
Taper surface.
It is preferred that, the one-way valve seat periphery is provided with the annular groove for being used for assembling sealing ring.
The utility model additionally provides a kind of plunger pump, including the check valve in such scheme, and the check valve is assemblied in
On the intake tunnel and/or exhalant canal of water pump.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
During assembling, coordinated by the pilot hole in one-way valve seat periphery sealed ring deformation power and plunger pump cylinder body, to realize
The purpose of fixed one-way valve seat, unidirectional valve bonnet is then fastened on one-way valve seat afterbody, and this back-off is entirely capable of bearing check valve normal
Impulsive force during use, it is ensured that do not drop out.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model check valve；
Fig. 2 is installation diagram of the utility model check valve in plunger pump.
Reference：1st, unidirectional valve bonnet；2nd, one-way valve seat；3rd, delivery port；4th, annular groove；5th, sealing ring；6th, outer convex annular
Rise；7th, in-flanges；8th, flanging；9th, annular is raised；10th, check valve sheet；11st, spring；12nd, plunger；13rd, exhalant canal；14、
Intake tunnel.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-2：
A kind of plunger pump, as shown in Fig. 2 being respectively equipped with buckle-type on the intake tunnel 14 and exhalant canal 13 of operating room
Compact check valve, operating room realizes that volume changes by the reciprocating motion of plunger 12, so as to realize lasting discharging water；Such as Fig. 1
Shown, check valve, including unidirectional valve bonnet 1 and one-way valve seat 2, unidirectional valve bonnet 1 is fixed on the afterbody of one-way valve seat 2, what both coordinated
End face is respectively equipped with back-off and fastened by the axial grafting of back-off；Unidirectionally provided with spring 11 and list between valve bonnet 1 and one-way valve seat 2
To valve block 10, check valve sheet 10 is compressed and covered on the delivery port 3 of the afterbody of one-way valve seat 2 by spring 11.
Wherein, the back-off structure is：The afterbody of one-way valve seat 2 is provided with annular projection 9, and 9 heads of annular projection are provided with
Flanging 8；The head of unidirectional valve bonnet 1 is provided with outer annular protrusion 6, and the head of outer annular protrusion 6 is provided with in-flanges 7；Annular is convex
Play 9 and stretch into the endoporus of outer annular protrusion 6, flanging 8 and in-flanges 7 are mutually twisted, and outer annular protrusion 6 is pushed against the tail of one-way valve seat 2
End surface.The outer wall of outer annular protrusion 6 is preferably a ramp structure, i.e., set from unidirectional valve bonnet 1 to the head introversion of outer annular protrusion 6
Meter, be designed so that outer annular protrusion 6 in fastening outside will not interfere with the pilot hole inwall of cylinder body when rising.
Wherein, the annular projection 9 and the female coaxial of one-way valve seat 2, check valve sheet 10 are resisted against annular projection 9
In the opening on head；The opening on raised 9 heads of the annular is provided with taper surface, and the periphery of check valve sheet 10 is provided with corresponding
Taper surface；The periphery of one-way valve seat 2 is provided with the annular groove 4 for being used for assembling sealing ring 5.
Above-described embodiment is only preferred embodiment of the present utility model, and protection model of the present utility model is not limited according to this
Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model
Within the scope of.
Claims (6)
1. a kind of buckle-type compact check valve, it is characterised in that：Including unidirectional valve bonnet (1) and one-way valve seat (2), unidirectional valve bonnet
(1) one-way valve seat (2) afterbody is fixed on, the end face that both coordinate is respectively equipped with back-off and fastened by the axial grafting of back-off；It is single
To spring (11) and check valve sheet (10) is provided between valve bonnet (1) and one-way valve seat (2), spring (11) presses check valve sheet (10)
Tightly cover on the delivery port (3) of one-way valve seat (2) afterbody.
2. buckle-type compact check valve according to claim 1, it is characterised in that：The back-off structure is：Check valve
Seat (2) afterbody is raised (9) provided with annular, and annular projection (9) head is provided with flanging (8)；Unidirectional valve bonnet (1) head
Provided with outer annular protrusion (6), outer annular protrusion (6) head is provided with in-flanges (7)；Annular projection (9) stretches into outer annular protrusion
(6) endoporus, flanging (8) and in-flanges (7) are mutually twisted, and outer annular protrusion (6) is pushed against one-way valve seat (2) tail end face.
3. buckle-type compact check valve according to claim 2, it is characterised in that：The annular raised (9) and list
To the female coaxial of valve seat (2), check valve sheet (10) is resisted against in the opening on raised (9) head of annular.
4. buckle-type compact check valve according to claim 3, it is characterised in that：Raised (9) head of the annular
Opening be provided with taper surface, check valve sheet (10) periphery be provided with corresponding taper surface.
5. buckle-type compact check valve according to claim 1, it is characterised in that：One-way valve seat (2) periphery is set
There is the annular groove (4) for assembling sealing ring (5).
6. a kind of plunger pump, including the buckle-type compact check valve described in claim any one of 1-5, it is characterised in that：Institute
Buckle-type compact check valve is stated to be assemblied on the intake tunnel of plunger pump (14) and/or exhalant canal (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180265.3U CN206496045U (en) | 2017-02-27 | 2017-02-27 | Buckle-type compact check valve and plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180265.3U CN206496045U (en) | 2017-02-27 | 2017-02-27 | Buckle-type compact check valve and plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206496045U true CN206496045U (en) | 2017-09-15 |
Family
ID=59806741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720180265.3U Active CN206496045U (en) | 2017-02-27 | 2017-02-27 | Buckle-type compact check valve and plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206496045U (en) |
-
2017
- 2017-02-27 CN CN201720180265.3U patent/CN206496045U/en active Active
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| GR01 | Patent grant |