CN208919415U - A kind of Novel check valve - Google Patents
A kind of Novel check valve Download PDFInfo
- Publication number
- CN208919415U CN208919415U CN201821156303.2U CN201821156303U CN208919415U CN 208919415 U CN208919415 U CN 208919415U CN 201821156303 U CN201821156303 U CN 201821156303U CN 208919415 U CN208919415 U CN 208919415U
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- China
- Prior art keywords
- circulation passage
- piston type
- seal head
- type seal
- valve seat
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Abstract
The utility model relates to a kind of Novel check valves, including valve cylinder, the left and right ends of the valve cylinder are respectively water outlet and water inlet, the first circulation passage and the second circulation passage are disposed in the valve cylinder from left to right, the diameter of first circulation passage is greater than the diameter of the second circulation passage, cascaded surface is formed between the right end of first circulation passage and the left end of the second circulation passage, the cascaded surface is provided with valve seat, through-hole is offered on the side wall of the valve seat, there are gaps between the outer wall of the valve seat and the inner wall of the first circulation passage, the through-hole is connected with gap, piston type seal head is also flexibly connected in the valve seat, the piston type seal head is connected with snap switch device, the piston type seal head is sealed through-hole under the action of snap switch device.The design has the advantages that structure is simple, easily fabricated and practical and efficient.
Description
Technical field
The utility model relates to a kind of valves, are specifically related to a kind of Novel check valve.
Background technique
Now on the market and in life, check valve is very universal, and check valve can effectively prevent water reflux, and gas returns
Stream, meanwhile, can achieve the effect that many occasions need, therefore largely used, traditional check valve, often through thin slice and
Some mechanism compositions, ability to bear is small, is used still by small-scale, but, once apply to the field for needing large-scale pressure release
When institute, the ability to bear of raising thin slice simply is not all right, because each material and structure have its drawback, thin slice itself
Structure limits its ability to bear.
Summary of the invention
The utility model offers spare transfer passage in guide rod, prevents to pass through when through-hole blocks
Spare transfer passage continues to convey, and plays the role of increasing the practicality energy；A kind of Novel check valve is provided.
In order to solve the above technical problems, the utility model provides a kind of Novel check valve, including valve cylinder, and feature exists
In: the left and right ends of the valve cylinder are respectively water outlet and water inlet, are disposed in the valve cylinder from left to right
One circulation passage and the second circulation passage, the diameter of first circulation passage is greater than the diameter of the second circulation passage, described
The right end of the first circulation passage and the left end of the second circulation passage between form cascaded surface, the cascaded surface is provided with valve
Seat offers through-hole on the side wall of the valve seat, between the outer wall of the valve seat and the inner wall of the first circulation passage there are
Gap, the through-hole are connected with gap, and piston type seal head is also flexibly connected in the valve seat, and the piston type is close
End socket is connected with snap switch device, and the piston type seal head carries out through-hole under the action of snap switch device close
Envelope.
Further, the snap switch device includes guide rod, mounting plate and the first spring, the piston type sealing
Head is flexibly connected on the guide bar, and one end of the guide rod passes through piston type seal head and stretches in the second circulation passage,
The other end of the guide rod is fixed on a mounting board, and the mounting plate is connected in the first circulation passage, the peace
Apopore is offered in loading board, the piston type seal head is connected by the first spring with mounting plate.
Further: the left end of the guide rod, which opens up, to be connected in fluted, described groove by second spring
Second seal plug, is also provided with spare transfer passage in the guide rod, one end of the spare transfer passage and the
One circulation passage is connected, and the other end of the spare transfer passage is connected with groove, and the spare transfer passage is logical
The second seal plug is crossed to be sealed.
After adopting the above structure, the utility model offers spare transfer passage in guide rod, prevents from occurring in through-hole
It when blocking, can continue to convey by spare transfer passage, play the role of increasing the practicality energy；And the design
Also have the advantages that structure is simple, easily fabricated and practical and efficient.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing of A in Fig. 1.
Specific embodiment
The left and right ends of a kind of Novel check valve as shown in Figure 1, including valve cylinder 1, the valve cylinder 1 are respectively water outlet
And water inlet, it is disposed with the first circulation passage 2 and the second circulation passage 3 in the valve cylinder 1 from left to right, described
The diameter of one circulation passage 2 is greater than the diameter of the second circulation passage 3, the right end of first circulation passage 2 and the second circulation
Cascaded surface is formed between the left end in channel 3, the cascaded surface is provided with valve seat 4, offers on the side wall of the valve seat 4 logical
Hole 5, there are gap between the outer wall of the valve seat 4 and the inner wall of the first circulation passage 2, the through-hole 5 is connected with gap
It is logical, piston type seal head 6, the piston type seal head 6 and snap switch device phase are also flexibly connected in the valve seat 4
Even, the piston type seal head 6 is sealed through-hole 5 under the action of snap switch device.The design has structure letter
Single, easily fabricated and practical and efficient advantage.
Snap switch device as shown in Figure 2 includes that guide rod 8, mounting plate 9 and the first spring 7, the piston type are close
End socket 6 is movably connected on guide rod 8, and one end of the guide rod 8 passes through piston type seal head 6 and stretches to second all
In road, the other end of the guide rod 8 is fixed on mounting plate 9, and the mounting plate 9 is connected in the first circulation passage 2,
Apopore 10 is offered on the mounting plate 9, the piston type seal head 6 is connected by the first spring 7 with mounting plate 9.
The left end of guide rod 8 as shown in Figure 2 opens up fluted 11, is connected in the groove 11 by second spring 12
There is the second seal plug 14, spare transfer passage 13 is also provided in the guide rod 8, the spare transfer passage 13
One end is connected with the first circulation passage 2, and the other end of the spare transfer passage 13 is connected with groove 11, and described is standby
It is sealed with transfer passage 13 by the second seal plug 14.It is logical that the utility model offers spare conveying in guide rod
Road is prevented when through-hole blocks, and can continue to convey by spare transfer passage, is played and is increased the practicality energy
Effect.
Claims (3)
1. a kind of Novel check valve, including valve cylinder, it is characterised in that: the left and right ends of the valve cylinder be respectively water outlet and into
The mouth of a river is disposed with the first circulation passage and the second circulation passage, first circulation in the valve cylinder from left to right
The diameter in channel is greater than the diameter of the second circulation passage, the right end of first circulation passage and the left end of the second circulation passage
Between form cascaded surface, the cascaded surface is provided with valve seat, and through-hole, the valve seat are offered on the side wall of the valve seat
Outer wall and the first circulation passage inner wall between there are gap, the through-hole is connected with gap, in the valve seat also
It is flexibly connected piston type seal head, the piston type seal head is connected with snap switch device, the piston type seal head
Through-hole is sealed under the action of snap switch device.
2. a kind of Novel check valve according to claim 1, it is characterised in that: the snap switch device includes guiding
Bar, mounting plate and the first spring, the piston type seal head are flexibly connected on the guide bar, and one end of the guide rod is worn
It crosses piston type seal head to stretch in the second circulation passage, the other end of the guide rod is fixed on a mounting board, described
Mounting plate is connected in the first circulation passage, and apopore is offered on the mounting plate, and the piston type seal head passes through
First spring is connected with mounting plate.
3. a kind of Novel check valve according to claim 2, it is characterised in that: the left end of the guide rod offers recessed
Slot, the groove is interior to be connected with the second seal plug by second spring, and spare conveying is also provided in the guide rod
The one end in channel, the spare transfer passage is connected with the first circulation passage, the other end of the spare transfer passage
It is connected with groove, the spare transfer passage is sealed by the second seal plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821156303.2U CN208919415U (en) | 2018-07-20 | 2018-07-20 | A kind of Novel check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821156303.2U CN208919415U (en) | 2018-07-20 | 2018-07-20 | A kind of Novel check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919415U true CN208919415U (en) | 2019-05-31 |
Family
ID=66694360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821156303.2U Active CN208919415U (en) | 2018-07-20 | 2018-07-20 | A kind of Novel check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919415U (en) |
-
2018
- 2018-07-20 CN CN201821156303.2U patent/CN208919415U/en active Active
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| GR01 | Patent grant |