CN203906894U - Air suction backstop device - Google Patents
Air suction backstop device Download PDFInfo
- Publication number
- CN203906894U CN203906894U CN201420364633.6U CN201420364633U CN203906894U CN 203906894 U CN203906894 U CN 203906894U CN 201420364633 U CN201420364633 U CN 201420364633U CN 203906894 U CN203906894 U CN 203906894U
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- China
- Prior art keywords
- valve body
- air
- mounting hole
- annular
- annular slab
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- Expired - Fee Related
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Abstract
The utility model discloses an air suction backstop device which comprises a joint, a valve body and an elastic sealing ring, wherein a mounting hole and an air suction channel are formed in the joint; the valve body is connected into the mounting hole, and a divergent hole is formed in the valve body; a sudden-changing cavity is formed in the part, positioned under the valve body, of the mounting hole; an annular plate encircling the valve body is convexly arranged outside the valve body, and an air suction hole which gets through vertically is formed in the annular plate; the part, under the annular plate, of the valve body and the inner wall of the mounting hole form an annular cavity; the air suction channel, the air suction hole, the annular cavity and the sudden-changing cavity are sequentially communicated; the upper periphery of the sealing ring is arranged between the annular plate and the inner wall of the mounting hole, and the lower periphery of the sealing ring is positioned in the annular cavity and can be connected with the outer wall of the valve body in a sealing manner so as to stop or depart away from the outer wall so as to suck air. The air suction backstop device has the advantages that the air suction hole and a backstop surface are arranged on the valve body, and the sealing ring is matched with the valve body so as to realize air suction backstop; after the sealing ring and the valve body are assembled, whether the sealing ring and the valve body are well matched or not can be judged; the assembly is convenient and fast, the production efficiency can be improved, and the stability of manufacture procedure is ensured.
Description
Technical field
The utility model relates to a kind of air-sucking backflow check device.
Background technique
Chinese patent database notice of authorization model utility name be called the model utility of " a kind of a kind of air-sucking backflow check device for water channel field ", its patent No. is CN201020185693.3.It comprises a main body and an elastic seal cartridge.In main body, there is a water route and at least one inlet hole.Water route has the sudden change chamber of a water inlet and a connection water inlet, and the section area in sudden change chamber is greater than the section area of water inlet.Inlet hole has a suction port and an air outlet, and suction port is positioned at outside main body, and air outlet is positioned at sudden change chamber.Within elastic seal cartridge is installed in main body, and the inlet hole of adaptive main body.The current following current in water route, the chamber that suddenlys change produces negative pressure and adsorbs elastic seal cartridge so that inlet hole conducting is air-breathing with energy.The current in water route flow backwards, and water route Water Pressure is in elastic seal cartridge inner side surface so that elastic seal cartridge is sealed into pore.Elastic seal cartridge one end is installed on the internal frame in main body, on the sealed support of outer end, to realize suction non-return.Because suction non-return is to coordinate realization by outer end and the bearing of elastic seal cartridge, whether assemble accurately and coordinate, only after assembling, could know by experiment, therefore assembling inconvenience, may realize assembling incomplete phenomena, may occur the phenomenon that flows backwards.
Model utility content
The utility model provides a kind of air-sucking backflow check device, and it has overcome the existing deficiency of a kind of air-sucking backflow check device in background technique.
The technological scheme adopting that the utility model solves its technical problem is:
A kind of air-sucking backflow check device, comprises joint (10), valve body (20) and flexible seal ring (30); This joint (10) is established the mounting hole (11) and the inside and outside air intake passage (12) of penetrating mounting holes (11) that run through up and down; This valve body (20) is installed in mounting hole (11) and establishes the tap hole (21) running through up and down, and the part being positioned under valve body (20) of mounting hole (11) is provided with sudden change chamber (13); The outer annular slab (22) that surrounds valve body (20) that convexes with of this valve body (20), this annular slab (22) is established the suction port (23) running through up and down, part under the annular slab (22) of this valve body (20) and mounting hole (11) inwall form annular chamber (40), and this air intake passage (12), suction port (23), annular chamber (40) and sudden change chamber (13) are sequentially connected; Sealing ring (30) upper peripheral edge is arranged between annular slab (22) and mounting hole (11) inwall, sealing ring (30) bottom (31) is positioned at annular chamber (40), and by seal ring (30) resiliently deformable can be tightly connected valve body (20) outer wall or away from valve body (20) outer wall.
Among one embodiment: form the air aspiration cavity (24) that can connect air intake passage (12) between this annular slab (22) and valve body (20), this suction port (23) upper end-hole is connected air aspiration cavity (24).
Among one embodiment: this valve body (20) annular is concaved with annular groove, under this annular groove, cell wall forms above-mentioned annular slab (22), this annular groove forms above-mentioned air aspiration cavity (24), corresponding air intake passage (12) inner port of connecting of notch of this annular groove.
Among one embodiment: the cross section of this tap hole (21) is less than the cross section in sudden change chamber (13).
Among one embodiment: this mounting hole (11) has the macropore section (111) being positioned under annular slab (22), the outer wall interval that is positioned at the part under annular slab (22) of wall and valve body (20) within this macropore section (111), under this macropore section (111), end is positioned under valve body (20) under end face.
Among one embodiment: this mounting hole (11) has the macropore section (111) being positioned under annular slab (22) and connects macropore section (111) and be positioned at the aperture section (112) under macropore section (111), this macropore section (111) internal diameter is greater than the external diameter that is positioned at the part under annular slab (22) of valve body (20), this aperture section (112) internal diameter is less than the external diameter that is positioned at the part under annular slab (22), between this macropore section (111) and aperture section (112), form the first ladder surface (113), this valve body (20) lower end surface and the first ladder surface (113) between the upper and lower every.
Among one embodiment: establish a second-order tread (114) upward in this mounting hole (11), this annular slab (22) rigid staybolt is located on second-order tread (114).
Among one embodiment: on sealing ring (30), port (32) seals between annular slab (22) and mounting hole (11) inwall, and sealing ring (30) has the part (33) of sealed clamping between annular slab (22) outer ring, lower end surface and second-order tread.
Among one embodiment: on this joint (10), end is established linkage structure on (14), under this joint (10), end is established linkage structure (15).
The technical program is compared with background technique, and its tool has the following advantages:
1, air-breathing road comprises air intake passage, suction port, annular chamber and sudden change chamber, seal ring upper peripheral edge is arranged between annular slab and mounting hole inwall, seal ring lower periphery be positioned at annular chamber and can be tightly connected valve outer wall with non-return or away from outer wall with air-breathing, wherein suction port and non-return face are all located on valve body, cooperation between seal ring and valve body realizes suction non-return, whether after fitting tight ring and valve body, can test the two coordinates and puts in place, easy to assembly quick, can enhance productivity, and guarantee the stability of processing procedure.
2, valve body annular is concaved with annular groove, and under annular groove, cell wall forms above-mentioned annular slab, and annular groove forms above-mentioned air aspiration cavity, and the corresponding air intake passage inner port of connecting of notch of annular groove is easy to assembly, compact structure, simple.
3, in mounting hole, establish a second-order tread upward, annular slab rigid staybolt is located on second-order tread, facilitates fixed valve body.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 has illustrated the plan view of a kind of air-sucking backflow check device of a preferred embodiment.
Fig. 2 has illustrated the worm's eye view of a kind of air-sucking backflow check device of a preferred embodiment.
Fig. 3 has illustrated the schematic perspective view of the valve body of a kind of air-sucking backflow check device of a preferred embodiment.
Fig. 4 has illustrated the schematic perspective view of the seal ring of a kind of air-sucking backflow check device of a preferred embodiment.
Fig. 5 has illustrated the section decomposing schematic representation of a kind of air-sucking backflow check device of a preferred embodiment.
Fig. 6 has illustrated the generalized section of a kind of air-sucking backflow check device of a preferred embodiment, now in the state of cutting off the water.
Fig. 7 has illustrated the generalized section of a kind of air-sucking backflow check device of a preferred embodiment, now in suction condition.
Fig. 8 has illustrated the generalized section of a kind of air-sucking backflow check device of a preferred embodiment, now in non-return state.
Embodiment
Please refer to Fig. 1 to Fig. 8, a kind of air-sucking backflow check device, comprises joint 10, valve body 20 and flexible seal ring 30.
This joint 10 is established the mounting hole 11 and the inside and outside air intake passage 12 of penetrating mounting holes 11 that run through up and down; This valve body 20 is installed in mounting hole 11 and establishes the tap hole 21 running through up and down, the cross section of this tap hole 21 is less than sudden change 13Zhi cross section, chamber, make the part being positioned under valve body 20 of mounting hole 11 be provided with sudden change chamber 13, when current produce negative pressure because area sudden change makes current in the time that tap hole 21 enters sudden change chamber 13, the chamber 13 that makes to suddenly change produces negative pressure, can be from extraneous air amount under suction function, air and current mix the air-breathing mixing water of generation (air-bubble)., economize on water, use comfortable.
The outer annular slab 22 that surrounds valve body 20 that convexes with of this valve body 20, this annular slab 22 is established the suction port 23 running through up and down, part under the annular slab 22 of this valve body 20 and mounting hole 11 inwalls form annular chamber 40, and this air intake passage 12, suction port 23, annular chamber 40 and sudden change chamber 13 are sequentially connected, the 30 upper peripheral edge sealings of sealing ring are fixed between annular slab 22 and mounting hole 11 inwalls, sealing ring 30 bottoms 31 are positioned at annular chamber 40 and can be achieved as follows function: as Fig. 7, the interior generation negative pressure in chamber 13 of suddenling change when water flowing, this suction function absorption seal ring 30, ambient atmos makes seal ring 30 bottoms 31 away from valve body 20 outer walls so that can pass through air intake passage 12, suction port 23, annular chamber 40 enters sudden change chamber 13, or, as Fig. 8, as the flow action seal ring 30 that flows backwards while flowing backwards makes the bottom 31 of seal ring 30 valve body 20 outer walls that can be tightly connected realize non-return to intercept sudden change chamber 13 and suction port 23, avoid current through annular chamber 40, suction port 23 air intake passage 12 that flows backwards.And, Guan Shuihou, sealing ring 30 is under nature, and the bottom 31 of sealing ring 30 valve body 20 outer walls that can be tightly connected, as Fig. 6.As required, on this valve body, outer circumferential face is arranged with an annular mounting groove 25, and the interior installing seal ring of this mounting groove 25, by seal ring sealed valve body and mounting hole inwall.
The position that this valve body and seal ring lower periphery coordinate is non-return of annular, best, and under these valve body 20 outer walls, part is provided with a conical section, the bottom of sealing ring 30 and conical section corresponding matching, and this non-return is conical section, can increase sealability.
In one preferred version, these valve body 20 annulars are concaved with annular groove, under this annular groove, cell wall forms above-mentioned annular slab 22, this annular groove forms air aspiration cavity 24, corresponding air intake passage 12 inner port of connecting of notch of this annular groove, to make: form air aspiration cavity 24 between this annular slab 22 and valve body 20, this air aspiration cavity 24 can be connected air intake passage 12, these suction port 23 upper end-hole are connected air aspiration cavity 24.
In one preferred version, this mounting hole 11 has the macropore section 111 being positioned under annular slab 22 and connects macropore section 111 and be positioned at the aperture section 112 under macropore section 111, macropore section 111 and aperture section 112 are coaxially arranged, these macropore section 111 internal diameters are greater than the external diameter that is positioned at the part under annular slab 22 of valve body 20, these aperture section 112 internal diameters are less than the external diameter that is positioned at the part under annular slab 22, between this macropore section 111 and aperture section 112, form the first ladder surface 113, these valve body 20 lower end surfaces and the first ladder surface 113 between the upper and lower every, with make annular chamber connect sudden change chamber.
In one preferred version, establish a second-order tread 114 upward in this mounting hole 11, these annular slab 22 rigid staybolts are located at second-order tread 11) on.Best, on sealing ring 30, port 32 seals between annular slab 22 and mounting hole 11 inwalls, sealing ring 30 has the part 33 of sealed clamping between annular slab 22 outer rings, lower end surface and second-order tread, convenient for assembly on the one hand, compact structure, simple, increases the sealability between valve body and joint on the other hand.
Part 33 lower periphery of the sealing ring 30 tapered part that extends internally downwards, the bottom 31 that this tapering part lower periphery is seal ring 30.The bottom surface of this part 33 can be convexly equipped with bulge loop, on bulge loop contact second-order tread, can increase sealing with this.
Best, on joint 10, end is established linkage structure 14 on, and on this, linkage structure 14 is for example provided with outside thread can connect watering, and under this joint 10, end is established linkage structure 15, and this lower linkage structure 15 is for example provided with internal thread can connect outlet terminal.
In another preferred version, it and upper embodiment's difference are: the macropore section under this mounting hole extends to mounting hole lower end, and under this macropore section, end is positioned under valve body under end face.
The above, it is only the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of doing according to the utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (9)
1. an air-sucking backflow check device, comprises joint (10), valve body (20) and flexible seal ring (30); This joint (10) is established the mounting hole (11) and the inside and outside air intake passage (12) of penetrating mounting holes (11) that run through up and down; This valve body (20) is installed in mounting hole (11) and establishes the tap hole (21) running through up and down, and the part being positioned under valve body (20) of mounting hole (11) is provided with sudden change chamber (13); It is characterized in that: the outer annular slab (22) that surrounds valve body (20) that convexes with of this valve body (20), this annular slab (22) is established the suction port (23) running through up and down, part under the annular slab (22) of this valve body (20) and mounting hole (11) inwall form annular chamber (40), and this air intake passage (12), suction port (23), annular chamber (40) and sudden change chamber (13) are sequentially connected; Sealing ring (30) upper peripheral edge is arranged between annular slab (22) and mounting hole (11) inwall, sealing ring (30) bottom (31) is positioned at annular chamber (40), and by seal ring (30) resiliently deformable can be tightly connected valve body (20) outer wall or away from valve body (20) outer wall.
2. a kind of air-sucking backflow check device according to claim 1, it is characterized in that: between this annular slab (22) and valve body (20), form the air aspiration cavity (24) that can connect air intake passage (12), this suction port (23) upper end-hole is connected air aspiration cavity (24).
3. a kind of air-sucking backflow check device according to claim 2, it is characterized in that: this valve body (20) annular is concaved with annular groove, under this annular groove, cell wall forms above-mentioned annular slab (22), this annular groove forms above-mentioned air aspiration cavity (24), corresponding air intake passage (12) inner port of connecting of notch of this annular groove.
4. a kind of air-sucking backflow check device according to claim 1, is characterized in that: the cross section of this tap hole (21) is less than the cross section in sudden change chamber (13).
5. a kind of air-sucking backflow check device according to claim 1, it is characterized in that: this mounting hole (11) has the macropore section (111) being positioned under annular slab (22), the outer wall interval that is positioned at the part under annular slab (22) of wall and valve body (20) within this macropore section (111), under this macropore section (111), end is positioned under valve body (20) under end face.
6. a kind of air-sucking backflow check device according to claim 1, it is characterized in that: this mounting hole (11) has the macropore section (111) being positioned under annular slab (22) and connects macropore section (111) and be positioned at the aperture section (112) under macropore section (111), this macropore section (111) internal diameter is greater than the external diameter that is positioned at the part under annular slab (22) of valve body (20), this aperture section (112) internal diameter is less than the external diameter that is positioned at the part under annular slab (22), between this macropore section (111) and aperture section (112), form the first ladder surface (113), this valve body (20) lower end surface and the first ladder surface (113) between the upper and lower every.
7. a kind of air-sucking backflow check device according to claim 1, it is characterized in that: in this mounting hole (11), establish a second-order tread (114) upward, this annular slab (22) rigid staybolt is located on second-order tread (114).
8. a kind of air-sucking backflow check device according to claim 7, it is characterized in that: on sealing ring (30), port (32) seals between annular slab (22) and mounting hole (11) inwall, and sealing ring (30) has the part (33) of sealed clamping between annular slab (22) outer ring, lower end surface and second-order tread.
9. a kind of air-sucking backflow check device according to claim 1, is characterized in that: on this joint (10), end is established linkage structure on (14), and under this joint (10), end is established linkage structure (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364633.6U CN203906894U (en) | 2014-07-02 | 2014-07-02 | Air suction backstop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364633.6U CN203906894U (en) | 2014-07-02 | 2014-07-02 | Air suction backstop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906894U true CN203906894U (en) | 2014-10-29 |
Family
ID=51781174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364633.6U Expired - Fee Related CN203906894U (en) | 2014-07-02 | 2014-07-02 | Air suction backstop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906894U (en) |
-
2014
- 2014-07-02 CN CN201420364633.6U patent/CN203906894U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 361002, Fujian, Xiamen, China (Fujian) free trade test area, Xiamen area (bonded port), Seaview East Road, No. 4, building 18, A06 Co-patentee after: Zhou Huasong Patentee after: XIAMEN SOLEX HIGH-TECH INDUSTRIES Co.,Ltd. Address before: 361002 Fujian city of Xiamen province sunshine West Haicang Xinyang Industrial Zone, No. 298 Co-patentee before: Zhou Huasong Patentee before: XIAMEN SOLEX HIGH-TECH INDUSTRIES Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171009 Address after: 361000, Fujian, Xiamen, China (Fujian) free trade test area, Xiamen area (bonded port), Seaview East Road, No. 4, building 18, A06 Patentee after: XIAMEN SOLEX HIGH-TECH INDUSTRIES Co.,Ltd. Address before: 361002, Fujian, Xiamen, China (Fujian) free trade test area, Xiamen area (bonded port), Seaview East Road, No. 4, building 18, A06 Co-patentee before: Zhou Huasong Patentee before: XIAMEN SOLEX HIGH-TECH INDUSTRIES Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |