CN201747576U - Piston type unloader - Google Patents
Piston type unloader Download PDFInfo
- Publication number
- CN201747576U CN201747576U CN2010202189104U CN201020218910U CN201747576U CN 201747576 U CN201747576 U CN 201747576U CN 2010202189104 U CN2010202189104 U CN 2010202189104U CN 201020218910 U CN201020218910 U CN 201020218910U CN 201747576 U CN201747576 U CN 201747576U
- Authority
- CN
- China
- Prior art keywords
- piston
- indicating arm
- lid
- piston type
- type unloader
- 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.)
- Expired - Lifetime
Links
Landscapes
- Compressor (AREA)
Abstract
The utility model provides a piston type unloader, which belongs to the technical field of machinery, and solves the problem that the structure of the conventional piston type unloader fails to reflect the working state of the unloader in time and brings inconvenience to users. The piston type unloader comprises an end cover mounted on a compressor cylinder body and a cylindrical support saddle fixedly connected with the end cover, wherein a piston capable of vertically moving along the inner wall of the support saddle is arranged in the support saddle, a jacking rod capable of penetrating the end cover and jacking an unloading fork of the compressor is connected to one end of the piston, and an indication structure capable of displaying the position of the piston is arranged on the piston. In the piston type unloader, an indication rod extending out of the cover body is fixedly connected to the piston, so that the working state of the unloader can be reflected through judging the position of the indication rod in time. The piston type unloader has the advantages of simple structure and convenience of use.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of piston type unloader of compressor accessory, particularly a kind of compressor.
Background technique
Compressor is when starting, often because suction pressure is bigger, current of electric is excessive when causing starting shooting, also can cause the motor overload coil burnout when serious, influence the proper functioning and the working life of compressor, therefore for the sake of security, compressor is started shooting under unloading condition usually, and this just need use the unloading mechanism of compressor.
Existing unloading mechanism is that fork is pressed in the installing off-load on suction valve, when the needs off-load, press fork to back down the valve block of Aspirating valves, make the gas that has partly or entirely sucked in the cylinder flow back in the air aspiration cavity again, do not carry out compression process, thereby reach the purpose of off-load, the device that the drive pressure fork presses off suction valve is the piston type unloader.
The piston type unloader is installed on the compresser cylinder, comprise end cap that is used to be installed on the compresser cylinder and the tubular bearing that is connected with end cap, be provided with a piston that can slide up and down in the bearing along bearing inside, one end of piston is fixed with push rod, push rod passes end cap and can stick in the off-load pressure of compressor by roof pressure, be provided with Returnning spring between piston and the bearing, the opening of bearing is fixed with a lid with suction port, between lid and piston, form an air chamber, by in suction port, feeding power instrument wind, the active force that driven plunger overcomes spring moves downward, press fork to back down suction valve chip thereby drive push rod promotion off-load, to reach the purpose of this cylinder side off-load.After off-load is finished, stop to feed power instrument wind, then piston resets under the effect of Returnning spring, presses fork to break away from valve block, and then this cylinder side is recovered proper functioning.Because piston is by gas-powered, push rod also stretches in the compressor casing, makes the operator be difficult to judge the position of push rod, thereby can't in time understand the working state of unloader, makes troubles to the user.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind ofly can judge intuitively whether compressor is in the piston type unloader of unloading condition.
The purpose of this utility model can realize by following technical proposal: a kind of piston type unloader, comprise end cap that is used to be installed on the compressor casing and the tubular bearing that is connected with end cap, be provided with the piston that can move up and down along the bearing inwall in the described bearing, it is characterized in that, one end of described piston is connected with and can passes the push rod that end cap and roof pressure are stuck in the compressor off-load, described piston be provided with can the instant playback piston position the indication structure.
The piston of unloader drives it by external force and slides up and down along the bearing inwall, thereby drive the push rod motion, one end roof pressure of push rod is stuck in the off-load of compressor, the off-load fork backs down air-intake valve plate to reach the off-load effect, by this indication structure is set at the unloader top, whether can conveniently get information about position of piston, be backed down thereby judge air-intake valve plate, the easy-to-operat person in time understands the working state of unloader.
In above-mentioned a kind of piston type unloader, described bearing opening is provided with a lid, and described indication structure comprises an indicating arm, and an end of described indicating arm is fixed on the piston, and the other end stretches out lid.Because the existence of bearing lid, piston is positioned at bearing inside can not judge position of piston intuitively, this indicating arm that stretches out lid is set after, can understand position of piston immediately by the position situation of indicating arm.
In above-mentioned a kind of piston type unloader, described lid and bearing be tightly connected and lid on have a suction port, form an air chamber between described lid and the piston, be provided with between described lid and the indicating arm and can make the sealing configuration that keeps sealing between lid and the indicating arm.
By in suction port, charging into pressurized gas, driven plunger moves down, thereby the sealability between piston and the lid is had relatively high expectations, and piston is when motion, indicating arm slides up and down along lid, so the sealing structure is set between lid and the indicating arm can effectively guarantees sealability between lid and the indicating arm.
In the relief arrangement of above-mentioned compressor, also be provided with a Returnning spring between described rest base and the piston.After the compressor off-load was finished, the suction port place of lid stopped air feed, and then piston is got back to initial position under the effect of spring force.
In above-mentioned a kind of piston type unloader, described sealing configuration comprises the mounting hole that is opened on the lid and is sealedly attached to the interior connecting base of mounting hole that described indicating arm passes this connecting base, and is provided with seal ring between indicating arm and the connecting base.
Adopt between mounting hole and the connecting base to be threaded, connecting base is tightly connected with the mounting hole and the indicating arm of lid respectively, has strengthened its sealability, when the long-term sealability of using the back sealing configuration reduces, only needs to change connecting base and gets final product simultaneously.
In above-mentioned a kind of piston type unloader, also be provided with a spring between described indicating arm and the connecting base, described spring housing is located at the indicating arm outside.When stopping air feed in the air chamber, piston moves upward under the effect of Returnning spring, bumps for preventing piston and lid, between connecting base and indicating arm spring is set, by the elastic force effect of spring, and protection piston and indicating arm.
In above-mentioned a kind of piston type unloader, described indicating arm stretches out the bounding means that the connecting base part also is fixed with restriction indicating arm stroke.When feeding power instrument wind in air chamber, piston moves downward, and indicating arm moves downward simultaneously, breaks away from connecting base for preventing indicating arm, can limit the indicating arm stroke at this bounding means of indicating arm arranged outside.
In above-mentioned a kind of piston type unloader, described bounding means is the annular collar that is sheathed on the indicating arm outside.Annular collar sheathed with the indicating arm outside because the external diameter of annular collar is greater than the indicating arm external diameter, when indicating arm moved downward to ultimate range, annular collar was connected seat and blocks, and makes indicating arm can not continue to move downward.
Compared with prior art, this piston type unloader is fixed with one and stretches out the indicating arm of lid on its piston, thereby can have advantage simple in structure, easy to use by judging the instant working state that reflects unloader in position of indicating arm.
Description of drawings
Fig. 1 is the structural representation of this piston type unloader.
Fig. 2 is the partial structurtes schematic representation in this piston type unloader.
Among the figure, 1, end cap; 2, bearing; 3, piston; 31, Returnning spring; 4, push rod; 5, lid; 51, suction port; 6, indicating arm; 61, annular collar; 7, connecting base; 71, spring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this piston type unloader, comprise end cap 1 that is used to be installed on the compressor casing and the tubular bearing 2 that is connected with end cap 1, be provided with the piston 3 that can move up and down along bearing 2 inwalls in the bearing 2, one end of piston 3 is connected with and can passes the push rod 4 that end cap 1 and roof pressure are stuck in the compressor off-load, the opening end of bearing 2 is fixed with a lid 5 with suction port 51, and lid 5 is tightly connected with bearing 2, be fixed with an indicating arm 6 on the piston 3, one end of indicating arm 6 stretches out lid 5, is provided with between lid 5 and the indicating arm 6 to make the sealing configuration that keeps sealing between indicating arm 6 and the lid 5.
Form an air chamber between lid 5 and the piston 3, by feed power instrument wind in suction port 51, driven plunger 3 moves downward, thereby drives push rod 4 motions, one end roof pressure of push rod 4 is stuck in the off-load of compressor, utilizes the off-load fork to back down air-intake valve plate to reach the off-load effect.Piston 3 is positioned at bearing 2, because the existence of lid 5, the technician can not judge piston 3 positions intuitively, thereby whether can not judge unloader in running order, therefore this indicating arm 6 is set, by understanding the position that indicating arm 6 stretches out the Length Indication piston 3 of lid 5.Piston 3 is by gas-powered, so the requirement of the sealability between indicating arm 6 and the lid 5 is very high, the sealing structure is set can effectively strengthens sealability between lid 5 and the indicating arm 6.
Sealing configuration between lid 5 and the indicating arm 6 comprises the mounting hole that is opened on the lid 5 and is sealedly attached to the interior connecting base 7 of mounting hole, adopt between mounting hole and the connecting base 7 and be threaded, indicating arm 6 passes this connecting base 7, and is provided with seal ring between indicating arm 6 and the connecting base 7.The outside that indicating arm 6 stretches out connecting base 7 parts is fixed with an annular collar 61, this annular collar 61 is used for the stroke of indicating arm 6 is limited, annular collar 61 is connected seat and 7 blocks when piston 3 moves downward to certain distance, prevents that indicating arm 6 breaks away from connecting bases 7.Connecting base 7 is tightly connected with the mounting hole and the indicating arm 6 of lid 5 respectively, has strengthened its sealability, when the long-term sealability of using the back sealing configuration reduces, only needs to change connecting base 7 and gets final product simultaneously.
Be provided with a Returnning spring 31 between bearing 2 bottoms and the piston 3, after the compressor off-load was finished, suction port 51 places of lid 5 stopped air feed, and then piston 3 is got back to initial position under the effect of Returnning spring 31 elastic force.Also be provided with a spring 71 between indicating arm 6 and the connecting base 7; spring 71 is sheathed on indicating arm 6 outsides, when piston 3 moves upward under the effect of Returnning spring 31, under the elastic force effect of spring 71; can prevent that piston 3 and lid 5 from bumping, protection piston 3 and indicating arm 6.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. piston type unloader, comprise end cap (1) that is used to be installed on the compressor casing and the tubular bearing (2) that is connected with end cap (1), be provided with the piston (3) that can move up and down along bearing (2) inwall in the described bearing (2), it is characterized in that, one end of described piston (3) is connected with and can passes the push rod (4) that end cap (1) and roof pressure are stuck in the compressor off-load, described piston (3) be provided with can instant playback piston (3) position the indication structure.
2. piston type unloader according to claim 1, it is characterized in that described bearing (2) opening is provided with a lid (5), described indication structure comprises an indicating arm (6), one end of described indicating arm (6) is fixed on the piston (3), and the other end stretches out lid (5).
3. piston type unloader according to claim 2, it is characterized in that, described lid (5) and bearing (2) be tightly connected and lid (5) on have a suction port (51), form an air chamber between described lid (5) and the piston (3), be provided with between described lid (5) and the indicating arm (6) and can make the sealing configuration that keeps sealing between lid (5) and the indicating arm (6).
4. according to claim 1 or 2 or 3 described piston type unloaders, it is characterized in that, also be provided with a Returnning spring (31) between described bearing (2) bottom and the piston (3).
5. piston type unloader according to claim 3, it is characterized in that, described sealing configuration comprises the mounting hole that is opened on the lid (5) and is sealedly attached to the interior connecting base (7) of mounting hole, described indicating arm (6) passes this connecting base (7), and is provided with seal ring between indicating arm (6) and the connecting base (7).
6. piston type unloader according to claim 5 is characterized in that, also is provided with a spring (71) between described indicating arm (6) and the connecting base (7), and described spring (71) is sheathed on indicating arm (6) outside.
7. according to claim 5 or 6 described piston type unloaders, it is characterized in that described indicating arm (6) stretches out the bounding means that connecting base (7) part also is fixed with restriction indicating arm (6) stroke.
8. piston type unloader according to claim 7 is characterized in that, described bounding means is for being sheathed on the annular collar (61) outside the indicating arm (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202189104U CN201747576U (en) | 2010-06-08 | 2010-06-08 | Piston type unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202189104U CN201747576U (en) | 2010-06-08 | 2010-06-08 | Piston type unloader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747576U true CN201747576U (en) | 2011-02-16 |
Family
ID=43582255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202189104U Expired - Lifetime CN201747576U (en) | 2010-06-08 | 2010-06-08 | Piston type unloader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690681A (en) * | 2015-02-10 | 2015-06-10 | 广东中烟工业有限责任公司 | Method for dismounting and mounting push rod seal ring |
| CN113432027A (en) * | 2021-07-26 | 2021-09-24 | 郑州众城润滑科技有限公司 | Grease pump head and grease pump |
| CN114110071A (en) * | 2021-10-11 | 2022-03-01 | 江苏鼎吉能源工程技术有限公司 | Viscous fluid damper with variable damping coefficient stages |
-
2010
- 2010-06-08 CN CN2010202189104U patent/CN201747576U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690681A (en) * | 2015-02-10 | 2015-06-10 | 广东中烟工业有限责任公司 | Method for dismounting and mounting push rod seal ring |
| CN113432027A (en) * | 2021-07-26 | 2021-09-24 | 郑州众城润滑科技有限公司 | Grease pump head and grease pump |
| CN114110071A (en) * | 2021-10-11 | 2022-03-01 | 江苏鼎吉能源工程技术有限公司 | Viscous fluid damper with variable damping coefficient stages |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201747576U (en) | Piston type unloader | |
| EP2032269A2 (en) | Pumps and methods for using the same | |
| EP2924315A1 (en) | Vehicle height adjustment device and method for mounting vehicle height adjustment device | |
| JP2012511655A (en) | Gas supply device | |
| CN209164210U (en) | A kind of pressurized fuel tank device | |
| KR101066258B1 (en) | Gas filling apparatus for gas spring | |
| EP3103629B1 (en) | Tire puncture repair kit | |
| CN2914307Y (en) | Air-pressure switch | |
| KR200481587Y1 (en) | Compressior for Toilet Stool | |
| CN201747558U (en) | Unloading device of compressor | |
| CN216910362U (en) | Compact automatic liquid transfer device | |
| KR20190008079A (en) | Pneumatic grease pump | |
| CN105673435B (en) | A kind of new gas compressor | |
| CN209725077U (en) | A kind of controllable unidirectional frcition damper of double reinforcements | |
| CN110748470B (en) | Side-pressure type anti-adhesion plunger electromagnetic pump | |
| CN108821206B (en) | Bottle body cork pressing device and cork adding method | |
| CN103123039A (en) | Air pressure lubricating oil injecting device and oil injecting method thereof | |
| CN218805591U (en) | Electric suction cup support | |
| CN209943023U (en) | Variable capacitance device | |
| CN201068643Y (en) | Pressure regulating type heavy pressure infusion plugging machine | |
| CN211969892U (en) | Flaring device suitable for packaging bag | |
| CN201221466Y (en) | Reciprocating apparatus of plunger pump | |
| CN215258365U (en) | Air compressor system of high leakproofness | |
| CN216735535U (en) | Extrusion pump head | |
| CN114906475B (en) | Suck-back structure and pressing pump |
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: Taizhou City, Zhejiang province 317608 Yuhuan City Economic Development Zone Yuhuan Xuanmen industrial city Patentee after: Taizhou ring world Polytron Technologies Inc Address before: 317600 City Road No. 518, Yuhuan County Yucheng Street office, Taizhou, Zhejiang Patentee before: Taizhou Huantian Machinery Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |