CN204239267U - A kind of screw-rod air compressor gas valve - Google Patents
A kind of screw-rod air compressor gas valve Download PDFInfo
- Publication number
- CN204239267U CN204239267U CN201420720698.XU CN201420720698U CN204239267U CN 204239267 U CN204239267 U CN 204239267U CN 201420720698 U CN201420720698 U CN 201420720698U CN 204239267 U CN204239267 U CN 204239267U
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- sealing
- suction port
- valve body
- inwall
- sealing drum
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Abstract
A kind of screw-rod air compressor gas valve of the utility model, comprise the valve body with suction port, inner chamber and air outlet, the inside of inner chamber is provided with cylinder block, cylinder block top is provided with sealing end face, the valve interior wall at suction port place is fixedly connected with sealing drum, cylindrically, its one end is fixed end to sealing drum, is fixedly connected on the valve body at suction port place near the side of sealing end face; The other end is that extended end is embedded in the inwall of the valve body at suction port place, this place's inwall is provided with the accepting groove for accommodating extended end, accepting groove is provided with the space of stretching for extended end, sealing drum sidewall is arc-shaped structure to its axis depression, sealing drum is made by being with flexible metal, the inwall of sealing end face and sealing drum is conflicted and is formed sealing surface, be provided with rubber cushion blocks between the sidewall of sealing drum and the inwall of suction port, sealing top is fixedly connected with facing to the side of suction port the sealing plug that rubber material makes.It effectively can improve tightness when suction valve cuts out, and Leakage prevention improves usability.
Description
Technical field
The utility model relates to air compressor accessory, and more particularly it relates to a kind of screw-rod air compressor gas valve.
Background technique
Screw air compressor suction valve is that the vitals of air compressor controls for the air inlet of air compressor, and it also includes solenoid valve and bleeder valve usually, is connected by pipeline.Authorization Notice No. is that the Chinese patent document of CN202768393U discloses a kind of screw-rod air compressor gas valve, comprise and there is suction port, the valve body of inner chamber and air outlet, valve body comprises lower valve body and upper valve body, it is characterized in that: described lower valve body is provided with O type ring recess, fluorine glue O type circle is placed with in O type ring recess, described inner cavity is provided with cylinder block, cylinder block top is provided with sealing end face, gland and piston are housed in cylinder block, the sidepiece of valve body is provided with bleeder valve, spool is provided with in bleeder valve, aluminium guide pillar and seal ring, the top of bleeder valve is connected solenoid valve, upper air-vent and lower exhaust port is distributed with in bleeder valve, battery valve controls the suction port of upper valve body by upper air-vent and lower exhaust port.Sealing end face in cylinder block and the valve body contact of suction port end are for closing suction port, in prior art, it is all rigid contact when above-mentioned sealing end face and valve body contact, easily rub between sealing end face and valve body impaired, cause occurring gap between surface of contact, sealing is poor, causes the situations such as gas leakage to occur, affects the usability of this suction valve.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of screw-rod air compressor gas valve, effectively can improve tightness when suction valve cuts out, Leakage prevention, improve usability.
For achieving the above object, the utility model provides following technological scheme: a kind of screw-rod air compressor gas valve, comprise the valve body with suction port, inner chamber and air outlet, valve body comprises lower valve body and upper valve body, and the inside of described inner chamber is provided with cylinder block, and cylinder block top is provided with sealing end face, the valve interior wall at described suction port place is fixedly connected with sealing drum, cylindrically, its one end is fixed end to described sealing drum, is fixedly connected on the valve body at suction port place near the side of sealing end face; The other end is that extended end is embedded in the inwall of the valve body at suction port place, this place's inwall is provided with the accepting groove for accommodating extended end, accepting groove is provided with the space of stretching for extended end, described sealing drum sidewall is arc-shaped structure to its axis depression, described sealing drum is made by being with flexible metal, the inwall of described sealing end face and sealing drum is conflicted and is formed sealing surface, be provided with rubber cushion blocks between the sidewall of described sealing drum and the inwall of suction port, described sealing top is also fixedly connected with facing to the side of suction port the sealing plug that rubber material makes.
By adopting technique scheme, abandon and sealed end face in the past and directly contact at mode suction port end valve body carrying out seal, change into, at its suction port, sealing drum is set with the position that contact of sealing end face, carry out sealing with the contact sealing end face by the inwall of sealing drum and greatly strengthen sealability and have more anti abrasive performance.Sealing drum is made by being with flexible metal, and its sidewall is be the structure of circular arc to central concave, and the inwall of suction port is fixed near the side of sealing end face in its one end.When cylinder block action, when sealing top is moved towards air inlet side, sealing end face contacts on the inwall of sealing drum, because sealing drum is for caving inward in circular arc, namely arch upward in cylinder, sealing top is in the face of the inwall applying pressure of sealing drum, the sidewall of sealing drum is strutted laterally, the extended end of sealing drum is then embedded in the accepting groove of gas port place inwall, and is provided with the space of stretching for extended end in accepting groove, and the sealing drum outwards strutted stretches in accepting groove in extended end.By the flexible effect of sealing drum, Elastic Contact is formed when sealing end face is contacted with sealing drum, sealing drum has certain extending space, effectively prevent the rigidity sealing end face and sealing drum inwall from wearing and tearing, avoid, because wearing and tearing produce gap, affecting sealing, it is by sealing drum elastic reaction, elastic force can enhanced leaktightness cylinder and sealing end face between contact tightness, effective enhanced leaktightness.
Rubber cushion blocks is provided with in addition between the sidewall of described sealing drum and the inwall of suction port.Rubber cushion blocks band is flexible, being arranged to be between the inwall of suction port and the sidewall of sealing drum is arranged at after sealing drum sidewall inwardly arches upward, in the gap of its sidewall and suction port inwall, reinforcement elastic reaction can be played, better protection sealing drum, prevent its stressed excessive generation distortion etc., improve its usability, and described sealing top is also fixedly connected with facing to the side of suction port the sealing plug that rubber material makes, the sealing plug that rubber material is made is very soft, can the contact internal walls of fitted seal end face and sealing drum, reach better sealability, when sealing the contact internal walls of end face and sealing drum, because sealing plug is positioned at the side of sealing top facing to suction port, therefore sealing plug also with sealing drum contact internal walls, sealing plug further can fill up sealing drum inwall and the sealing end face micro gap that may exist in course of working and using process, and because of surface roughness difference produce gap etc., the tightness of this suction valve of more effective raising valve entirety when closing.
The utility model is set to further: described fixed end is provided with the flange that vertical seal cylinder axis is arranged, and described flange is fixedly connected with valve body by fastening piece.
By adopting technique scheme, arranging flange be more convenient for the fixing of sealing drum at fixed end, flange place is by arranging fastening piece and valve body is fixed.
The utility model is set to further: be provided with seal ring between the surface of contact that described flange is connected with valve body.
By adopting technique scheme, the sealing that seal ring can strengthen this joint is set between the surface of contact that flange is connected with valve body.
Accompanying drawing explanation
Fig. 1 is the sectional view of this practical a kind of screw-rod air compressor gas valve embodiment;
Fig. 2 is the structural representation of the utility model sealing drum.
Description of reference numerals: 1, valve body; 2, cylinder block; 3, sealing drum; 4, rubber cushion blocks; 5, seal ring; 6, bolt; 7, sealing plug; 11, suction port; 12, air outlet; 13, accepting groove; 21, end face is sealed; 31, fixed end; 32, extended end; 33, flange; 211, T-shaped post.
Embodiment
Referring to figs. 1 through Fig. 2, this practical a kind of screw-rod air compressor gas valve embodiment is described further.
The present embodiment novel screw air compressor suction valve, comprise the valve body 1 with suction port 11, inner chamber and air outlet 12, valve body 1 comprises lower valve body 1 and upper valve body 1, the inside of described inner chamber is provided with cylinder block 2, cylinder block 2 top is provided with sealing end face 21, and valve body 1 inwall at described suction port 11 place is fixedly connected with sealing drum 3, and described sealing drum 3 cylindrically, its one end is fixed end 31, is fixedly connected on the valve body 1 at suction port 11 place near the side of sealing end face 21, the other end is that extended end 32 is embedded in the inwall of the valve body 1 at suction port 11 place, this place's inwall is provided with the accepting groove 13 for accommodating extended end 32, accepting groove 13 is provided with the space of stretching for extended end 32, described sealing drum 3 sidewall is arc-shaped structure to its axis depression, described sealing drum 3 is made up of the flexible metal of band, described sealing end face 21 is conflicted with the inwall of sealing drum 3 and is formed sealing surface, rubber cushion blocks 4 is provided with between the sidewall of described sealing drum 3 and the inwall of suction port 11, described sealing end face 21 is also fixedly connected with the sealing plug 7 that rubber material is made towards the side of suction port 11.
The present embodiment has been abandoned and has been sealed end face 21 in the past and directly contact at mode suction port 11 end valve body 1 carrying out seal, change into, at its suction port 11, sealing drum 3 is set with the position that contact of sealing end face 21, carry out sealing with the contact sealing end face 21 by the inwall of sealing drum 3 and greatly strengthen sealability and have more anti abrasive performance.With reference to shown in Fig. 1, sealing drum 3 is made up of the flexible metal of band, is made up herein, adopts other alloy, as spring steel, stainless steel etc. of Steel material.The sidewall of sealing drum 3 is be the structure of circular arc to central concave, and the inwall of suction port 11 is fixed near the side of sealing end face 21 in its one end.When cylinder block 2 action, when sealing end face 21 is to suction port 11 lateral movement, sealing end face 21 contacts on the inwall of sealing drum 3, because sealing drum 3 is for caving inward in circular arc, namely arch upward in cylinder, the inwall of sealing end face 21 pairs of sealing drums 3 applies pressure, the sidewall of sealing drum 3 is strutted laterally, the extended end 32 of sealing drum 3 is embedded in the accepting groove 13 of gas port 11 place inwall, and in accepting groove 13, being provided with the space of stretching for extended end 32, the sealing drum 3 outwards strutted stretches in accepting groove 13 in extended end 32.Accepting groove 13 is mainly and acts on for accommodating extended end 32, avoids extended end 32 to be directly affixed on the inwall of suction port 11, causes gas to pass through from extended end 32 and the gap of suction port 11 inwall, affects tightness.By the setting of accepting groove 13, extended end 32 is contained in accepting groove 13, and gas passes through from sealing drum 3.This programme is by the flexible effect of sealing drum 3, Elastic Contact is formed when sealing end face 21 is contacted with sealing drum 3, sealing drum 3 has certain extending space, effectively prevent from sealing end face 21 to wear and tear with the rigidity of sealing drum 3 inwall, avoid, because wearing and tearing produce gap, affecting sealing, it is by sealing drum 3 elastic reaction, elastic force can enhanced leaktightness cylinder 3 and sealing end face 21 between contact tightness, effective enhanced leaktightness.
Rubber cushion blocks 4 is bonded with in addition between the sidewall of described sealing drum 3 and the inwall of suction port 11.Rubber cushion blocks 4 is with flexible, being arranged to be between the inwall of suction port 11 and the sidewall of sealing drum 3 is arranged at after sealing drum 3 sidewall inwardly arches upward, in the gap of its sidewall and suction port 11 inwall, reinforcement elastic reaction can be played, better protection sealing drum 3, prevent its stressed excessive generation distortion etc., improve its usability, and described sealing end face 21 is also fixedly connected with the sealing plug 7 that rubber material is made towards the side of suction port 11, sealing plug 70 points of softnesses that rubber material is made, can the contact internal walls of fitted seal end face 21 and sealing drum 3, reach better sealability, when sealing the contact internal walls of end face 21 and sealing drum 3, because sealing plug 7 is positioned at the side of sealing end face 21 towards suction port 11, therefore sealing plug 7 also with sealing drum 3 contact internal walls, sealing plug 7 further can fill up sealing drum 3 inwall and sealing end face 21 micro gap that may exist in course of working and using process, and because of surface roughness difference produce gap etc., the tightness of this suction valve of more effective raising valve entirety when closing.Sealing plug 7 can be made by TPE material, also can use the making such as traditional silicon rubber.Sealing plug 7, by being embedded on the T-shaped post 211 of sealing end face 21 with reference to the mode shown in Fig. 1, is also fixed on sealing end face 21 by adding fastening piece.
Described fixed end 31 is provided with the flange 33 that vertical seal cylinder 3 axis is arranged, and described flange 33 is fixedly connected with valve body 1 by fastening piece.Arrange flange 33 at fixed end 31 and be more convenient for the fixing of sealing drum 3, flange 33 place is fixed with valve body 1 by arranging bolt 6, pin, screw etc.
Seal ring 5 is provided with between the surface of contact that described flange 33 is connected with valve body 1.Between the surface of contact that flange 33 is connected with valve body 1, the sealing that seal ring 5 can strengthen this joint is set.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, all within design concept of the present utility model, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a screw-rod air compressor gas valve, comprise the valve body with suction port, inner chamber and air outlet, valve body comprises lower valve body and upper valve body, the inside of described inner chamber is provided with cylinder block, cylinder block top is provided with sealing end face, it is characterized in that: the valve interior wall at described suction port place is fixedly connected with sealing drum, and described sealing drum cylindrically, its one end is fixed end, is fixedly connected on the valve body at suction port place near the side of sealing end face; The other end is that extended end is embedded in the inwall of the valve body at suction port place, this place's inwall is provided with the accepting groove for accommodating extended end, accepting groove is provided with the space of stretching for extended end, described sealing drum sidewall is arc-shaped structure to its axis depression, described sealing drum is made by being with flexible metal, the inwall of described sealing end face and sealing drum is conflicted and is formed sealing surface, be provided with rubber cushion blocks between the sidewall of described sealing drum and the inwall of suction port, described sealing top is also fixedly connected with facing to the side of suction port the sealing plug that rubber material makes.
2. a kind of screw-rod air compressor gas valve according to claim 1, is characterized in that: described fixed end is provided with the flange that vertical seal cylinder axis is arranged, and described flange is fixedly connected with valve body by fastening piece.
3. a kind of screw-rod air compressor gas valve according to claim 2, is characterized in that: be provided with seal ring between the surface of contact that described flange is connected with valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720698.XU CN204239267U (en) | 2014-11-26 | 2014-11-26 | A kind of screw-rod air compressor gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720698.XU CN204239267U (en) | 2014-11-26 | 2014-11-26 | A kind of screw-rod air compressor gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239267U true CN204239267U (en) | 2015-04-01 |
Family
ID=52768771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420720698.XU Expired - Fee Related CN204239267U (en) | 2014-11-26 | 2014-11-26 | A kind of screw-rod air compressor gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989024A (en) * | 2017-05-26 | 2017-07-28 | 上海思探博机电设备有限公司 | Screw-rod air compressor aperture essence amount controls fast-response intake valve |
| WO2022023798A1 (en) * | 2020-07-31 | 2022-02-03 | Siam Compressor Industry Co., Ltd. | A compressor |
-
2014
- 2014-11-26 CN CN201420720698.XU patent/CN204239267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989024A (en) * | 2017-05-26 | 2017-07-28 | 上海思探博机电设备有限公司 | Screw-rod air compressor aperture essence amount controls fast-response intake valve |
| WO2022023798A1 (en) * | 2020-07-31 | 2022-02-03 | Siam Compressor Industry Co., Ltd. | A compressor |
| US12012964B2 (en) | 2020-07-31 | 2024-06-18 | Siam Compressor Industry Co., Ltd. | Compressor with a suction valve having a spring, a seal, and a cylindrical suction valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20201126 |