CN209115742U - Bite type check valve - Google Patents
Bite type check valve Download PDFInfo
- Publication number
- CN209115742U CN209115742U CN201821719237.5U CN201821719237U CN209115742U CN 209115742 U CN209115742 U CN 209115742U CN 201821719237 U CN201821719237 U CN 201821719237U CN 209115742 U CN209115742 U CN 209115742U
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- CN
- China
- Prior art keywords
- valve body
- cutting ferrule
- diameter
- bellmouth
- circular hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A kind of bite type check valve, it is characterised in that: including valve body, locking nut, cutting ferrule, reset spring and steel ball；The valve body front end is connected with locking nut by internal and external threads, cutting ferrule is provided between locking nut and valve body front end, cutting ferrule lower body protrudes into the leading portion circular hole of valve body front end, sealing ring is sealed in the annular end face of cutting ferrule upper end, the external screw thread that valve rear end is provided with and matches to connecting pipe；The central shaft hole through valve body is provided in the valve body, the central shaft hole is divided into three sections, respectively from the leading portion circular hole being arranged front to back, middle section bellmouth and back segment circular hole, the steel ball is set in tapered openings smaller diameter end, and the volute spring by being set in bellmouth compresses to realize that the smaller diameter end sealing of itself and bellmouth cooperates, cutting ferrule is made of cutting ferrule main body and sealing ring.
Description
Technical field
The utility model relates to a kind of bite type check valves.
Background technique
Frequently with flanged joint, threaded connection and three kinds of connection types are welded to connect in chemical manufacturing plant pipes, but these three
Connection type has the drawbacks of disassembly is inconvenient, and poor sealing controls.Simultaneously in chemical line, material reflux will cause ten
Divide serious consequence, the presence of check valve has good positive effect for control Flow of Goods and Materials direction.
Utility model content
Purpose of the utility model is to solve the deficiencies of the above prior art and provide one kind connecting pipe and to control
A kind of bite type check valve of one-directional fluid flow in tubing giving sufficient strength, has that structure is simple, leakproofness compared to traditional check valve
Well, the characteristics of saving material, can dismantling repeatedly.
The utility model provides a kind of bite type check valve, it is characterised in that: including valve body, locking nut, cutting ferrule, answers
Position spring and steel ball；The valve body front end is connected with locking nut by internal and external threads, is set between locking nut and valve body front end
It is equipped with cutting ferrule, the cutting ferrule is made of cutting ferrule main body and sealing ring, and the cutting ferrule lower body protrudes into valve body front end leading portion circle
In hole, sealing ring is sealed in the annular end face of cutting ferrule upper end, and valve rear end is provided with and matches to connecting pipe outer
Screw thread；The central shaft hole through valve body is provided in the valve body, the central shaft hole is divided into three sections, respectively from front to back
The leading portion circular hole of setting, middle section bellmouth and back segment circular hole；The diameter of the middle section bellmouth is gradually increased from front to back,
The smaller diameter end diameter of middle section bellmouth is less than the diameter of leading portion circular hole, and the larger diameter end diameter of middle section bellmouth is greater than back segment circle
The diameter in hole；The steel ball is set in tapered openings smaller diameter end, and the volute spring by being set in bellmouth compresses
To realize that the smaller diameter end sealing of itself and bellmouth cooperates.
Preferably, the cutting ferrule is made of cutting ferrule main body and sealing ring, and the cutting ferrule lower body protrudes into valve body front end
In leading portion circular hole, sealing ring is sealed in the annular end face of cutting ferrule upper end.
Preferably, the valve body leading portion Circularhole diameter is 10mm；Middle section bellmouth end diameter is 5mm, and outside diameter is
11mm；Back segment Circularhole diameter 10mm, the steel ball size are 6mm.
Preferably, the valve body material is stainless steel material.
The utility model has the advantages that
Bite type check valve provided by the utility model is small in size, light-weight, sensitive, good airproof performance, can control pipe
Liquid single direction flows in road, has better service life and a reliability compared with common valve, and cutting ferrule connection structure it is simple,
Sealing performance is reliable, easy to use, manufacture is superior, shape is lightly beautiful, does not have to welding, to reduce pipeline impurity to system
The influence of performance.
Detailed description of the invention
Fig. 1 check valve connection schematic diagram
1. 2. locking nut of valve body, 3. cutting ferrule main body 4. is to connecting pipe A 5. to 6. spring of connecting pipe B, 7. steel ball 8.
Compression ring
Specific embodiment
As shown in Figure 1, the utility model is a kind of bite type check valve, including valve body 1, locking nut 2, cutting ferrule 3, reset
Spring 6 and steel ball 7；The valve body front end is connected with locking nut by internal and external threads, between 1 front end of locking nut 2 and valve body
It is provided with cutting ferrule 3, the external screw thread that 1 rear end of valve body is provided with and matches to connecting pipe A4；It is provided in the valve body 1 through valve
The central shaft hole of body 1, the central shaft hole are divided into three sections, respectively from the leading portion circular hole being arranged front to back, middle section bellmouth
With back segment circular hole；The diameter of the middle section bellmouth is gradually increased from front to back, the smaller diameter end diameter of middle section bellmouth
Less than the diameter of leading portion circular hole, the larger diameter end diameter of middle section bellmouth is greater than the diameter of back segment circular hole；The steel ball 7 is set to
In bellmouth smaller diameter end, and the volute spring 6 by being set in bellmouth compresses to realize that it is small straight with bellmouth
The sealing cooperation of diameter end, 3 rear end of cutting ferrule are protruded into valve body leading portion leading portion circular hole, and compression ring 8 is sealed at cutting ferrule front end ring
In shape end face, there is the central shaft hole through nut in the locking nut 2, the central shaft hole is divided into three sections, respectively before
Leading portion circular hole after, middle section location hole and back segment threaded hole；Leading portion Circularhole diameter is less than middle section location hole, and middle section location hole is straight
The annular end face of diameter and cutting ferrule 3 and sealing ring 8 matches, and back segment threaded hole and valve body leading portion external screw thread match.
Preferably, the cutting ferrule 3 is made of cutting ferrule main body and sealing ring 8, before the cutting ferrule lower body protrudes into valve body
It holds in leading portion circular hole, sealing ring 8 is sealed in the annular end face of cutting ferrule upper end.
Preferably, the 1 leading portion Circularhole diameter of valve body is 10mm；Middle section bellmouth end diameter is 5mm, and outside diameter is
11mm；Back segment Circularhole diameter 10mm, the steel ball size are 6mm.
Preferably, 1 material of valve body is stainless steel material.
When being attached, first 1 rear end of valve body is connected with to connecting tube A4 by screw threads for fastening, then by cutting ferrule main body
3 lower ends are inserted into 1 front end circular hole of valve body, and the annular end face in 3 upper end of cutting ferrule main body installs compression ring 8, then will be wait connect
Pipe B 5 is inserted into cutting ferrule, and locking nut 2 and 1 front end of valve body are locked, and cutting ferrule 3 can will be under the action of locking nut at this time
Connecting pipe B 5 is locked, completes connection.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of bite type check valve, it is characterised in that: including valve body, locking nut, cutting ferrule, reset spring and steel ball；It is described
Valve body front end is connected with locking nut by internal and external threads, and cutting ferrule, valve rear end are provided between locking nut and valve body front end
The external screw thread for being provided with and matching to connecting pipe；The central shaft hole through valve body, the center are provided in the valve body
Axis hole is divided into three sections, respectively from the leading portion circular hole being arranged front to back, middle section bellmouth and back segment circular hole；The middle section bellmouth
Diameter be gradually increased from front to back, the smaller diameter end diameter of middle section bellmouth is less than the diameter of leading portion circular hole, middle section cone
The larger diameter end diameter in shape hole is greater than the diameter of back segment circular hole；The steel ball is set in tapered openings smaller diameter end, and is passed through
The volute spring being set in bellmouth compresses to realize that the smaller diameter end sealing of itself and bellmouth cooperates.
2. a kind of bite type check valve as described in claim 1, it is characterised in that: the cutting ferrule is by cutting ferrule main body and sealing ring
Composition, the cutting ferrule lower body protrude into the leading portion circular hole of valve body front end, and sealing ring is sealed at the annular of cutting ferrule upper end
In end face.
3. a kind of bite type check valve as described in claim 1, it is characterised in that: the valve body leading portion Circularhole diameter is
10mm；Middle section bellmouth end diameter is 5mm, outside diameter 11mm；Back segment Circularhole diameter 10mm, the steel ball size are
6mm。
4. a kind of bite type check valve as described in claim 1, it is characterised in that: the valve body material is stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719237.5U CN209115742U (en) | 2018-10-23 | 2018-10-23 | Bite type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719237.5U CN209115742U (en) | 2018-10-23 | 2018-10-23 | Bite type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115742U true CN209115742U (en) | 2019-07-16 |
Family
ID=67201932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821719237.5U Active CN209115742U (en) | 2018-10-23 | 2018-10-23 | Bite type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115742U (en) |
-
2018
- 2018-10-23 CN CN201821719237.5U patent/CN209115742U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |