CN217421490U - Unloading device of air compressor - Google Patents
Unloading device of air compressor Download PDFInfo
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- CN217421490U CN217421490U CN202220518549.XU CN202220518549U CN217421490U CN 217421490 U CN217421490 U CN 217421490U CN 202220518549 U CN202220518549 U CN 202220518549U CN 217421490 U CN217421490 U CN 217421490U
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- uninstallation
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Abstract
The utility model belongs to the technical field of the air compressor machine, refer in particular to an uninstallation device of air compressor machine, including the valve plate, be equipped with air inlet chamber and exhaust chamber between cover of the cylinder body and the valve plate, the air inlet has been seted up on the valve plate, gas vent and valve block subassembly, uninstallation valve opening and uninstallation mouth have been seted up on the valve plate, the inner of uninstallation valve opening is through uninstallation valve opening and uninstallation mouth intercommunication, sliding connection has the uninstallation valve rod in the uninstallation valve opening, and the inner axial displacement of uninstallation valve rod can block up or switch on the uninstallation valve opening, the uninstallation valve gas pocket has been seted up on the uninstallation valve opening, uninstallation valve gas pocket and uninstallation gas storage chamber intercommunication. The utility model discloses simple structure, part are few and the cost is lower, make the inner and the uninstallation valve port separation of uninstallation valve rod with the help of uninstallation valve rod axial displacement to produced gas of air compressor machine will loop through uninstallation mouth, uninstallation valve port and uninstallation valve opening, finally, enters into the uninstallation gas storage intracavity or directly discharges from the air inlet department in chamber of admitting air from uninstallation valve air port department, realizes the purpose of uninstallation.
Description
The technical field is as follows:
the utility model belongs to the technical field of the air compressor machine, refer in particular to an uninstallation device of air compressor machine.
The background art comprises the following steps:
the automobile air compressor is widely applied to braking of an automobile, opening or closing of an automobile door, inflation of tires and the like. Most of the conventional commonly used automobile air compressors are reciprocating air compressors, also called piston air compressors.
Wherein, the air compressor machine advances the exhaust principle: the double-cylinder single cylinder of the air compressor for the automobile is the same, and the crankshaft drives the connecting rod and the piston to reciprocate up and down to generate air pressure for the automobile. When the piston moves downwards in the cylinder body, air flows from an air inlet of the cylinder cover to an air inlet cavity and an air inlet, then an air inlet valve plate is opened, and finally the air enters the cylinder body; when the piston moves upwards in the cylinder body, the air is pushed to close the air inlet valve plate, and the air pushes the air outlet valve plate through the air outlet hole to enter the air outlet cavity, then is exhausted from the air outlet through the air outlet channel, and finally enters the air storage cylinder through the air pipe.
When the air pressure in the air cylinder reaches the set highest pressure due to the inflation of the air compressor, the unloading device needs to be opened to unload the redundant gas generated by the air compressor, the continuous inflation is stopped, and when the air pressure in the air cylinder reaches the set lowest pressure, the unloading device is closed to enable the air compressor to continuously inflate the air cylinder. However, the conventional unloading device has the problems of various parts, complex structure, high cost and the like.
The invention content is as follows:
the utility model aims at providing an uninstallation device of air compressor machine, its simple structure, part are few and the cost is lower.
The utility model discloses a realize like this:
an unloading device of an air compressor comprises a valve plate arranged between a crankcase and a cylinder cover body, wherein an air inlet cavity and an air outlet cavity which are communicated with the outside are arranged between the cylinder cover body and the valve plate, the valve plate is provided with an air inlet communicated with the air inlet cavity, an air outlet communicated with the air outlet cavity and valve plate assemblies which are distributed to be matched with the air inlet and the air outlet, the valve plate is provided with an unloading valve hole and an unloading port matched with the crankcase, the inner end of the unloading valve hole is communicated with the unloading port through the unloading valve port, an unloading valve rod is connected in the unloading valve hole in a sliding mode along the axial direction of the unloading valve rod, the unloading valve hole can be blocked or communicated through the unloading valve port through the axial movement of the inner end of the unloading valve rod, the unloading valve hole is provided with an unloading valve hole, and the unloading valve hole is communicated with the air inlet cavity; or the air hole of the unloading valve is communicated with an unloading air storage cavity arranged on the cylinder cover body.
In the unloading device of the air compressor, the unloading valve hole is a step hole and is sequentially a large-diameter part and a small-diameter part from outside to inside, a first positioning step is formed between the large-diameter part and the small-diameter part, a large ring part plunger of the unloading valve rod is connected to the large-diameter part in a sliding mode, a small ring part plunger of the unloading valve rod is connected to the small-diameter part in a sliding mode, a second positioning step is formed between the large ring part and the small ring part of the unloading valve rod, a driving cavity is formed between the first positioning step and the second positioning step, a valve body unloading hole communicated with an external driving air source is formed in the driving cavity, a cover plate is covered at the outer port of the large-diameter part, and a reset spring is arranged between the unloading valve rod and the cover plate.
In the above unloading device for the air compressor, the outer end face of the unloading valve rod is provided with a reset central hole along the axis thereof, a spring valve rod is arranged between the unloading valve rod and the cover plate, the spring valve rod is inserted and connected with the reset central hole through a plunger, the reset spring is sleeved on the spring valve rod, and the unloading valve rod is provided with a through hole for communicating the reset central hole with the unloading valve port.
In the unloading device of the air compressor, a first sealing ring is arranged between the large ring part and the small ring part of the unloading valve rod and between the large ring part and the small ring part and between the small ring part and the large ring part and between the small ring part and the small ring part respectively.
In the unloading device of the air compressor, a second sealing ring is arranged between the outer wall surface of the spring valve rod and the reset central hole.
In foretell uninstallation device of air compressor machine, the cylinder head body is formed with the uninstallation signal air flue that communicates with valve body uninstallation hole between valve plate and the crankcase including from last cylinder cap and the intermediate lamella down in proper order, uninstallation signal air flue through uninstallation signal hole and external drive air supply intercommunication, and uninstallation signal hole sets up on valve plate, intermediate lamella and cylinder head, forms between intermediate lamella and the valve plate air inlet chamber and exhaust chamber form between cylinder cap and the intermediate lamella uninstallation gas storage chamber.
In the above-mentioned unloading device for the air compressor, the valve plate assembly includes an air inlet valve plate and an air outlet valve plate which can be elastically deformed, the air inlet valve plate is fixed on the lower end surface of the valve plate and completely covers the port of the air inlet, and the air outlet valve plate is fixed on the valve plate in the air outlet cavity and completely covers the port of the air outlet.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses simple structure, part are few and the cost is lower, make the inner of uninstallation valve rod separate with the uninstallation valve port with the help of uninstallation valve rod axial displacement, in order to switch on the uninstallation valve port to produced gas of air compressor machine will loop through uninstallation mouth, uninstallation valve port and uninstallation valve opening, finally, enters into the uninstallation gas storage intracavity or directly discharges from the air inlet department in chamber of admitting air from uninstallation valve air port department, realizes the purpose of uninstallation.
Description of the drawings:
FIG. 1 is a bottom view of the present invention showing the unloading device on one side of the valve plate opened and the unloading device on the other side closed;
FIG. 2 is a cross-sectional view of the valve plate with one side of the unloading mechanism open and the other side of the unloading mechanism closed;
fig. 3 is a plan view of the valve plate with one side unloading device opened and the other side unloading device closed.
In the figure: 1. a valve plate; 2. an air inlet cavity; 3. an exhaust chamber; 4. an air inlet; 5. an exhaust port; 6. unloading the valve hole; 7. an unloading port; 8. unloading the valve port; 9. unloading the valve rod; 10. unloading the valve air hole; 11. a drive chamber; 12. a valve body relief hole; 13. a cover plate; 14. a return spring; 15. a spring valve stem; 16. a first sealing ring; 17. a second sealing ring; 18. unloading the signal air channel; 19. unloading the signal hole; 20. an air inlet valve plate; 21. an exhaust valve plate; 22. and a through hole.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
an unloading device of an air compressor comprises a valve plate 1 arranged between a crankcase and a cylinder cover body, an air inlet cavity 2 and an air outlet cavity 3 which are communicated with the outside are arranged between the cylinder cover body and the valve plate 1, an air inlet 4 communicated with the air inlet cavity 2, an air outlet 5 communicated with the air outlet cavity 3 and valve block assemblies which are distributed and matched with the air inlet 4 and the air outlet 5 are arranged on the valve plate 1, an unloading valve hole 6 and an unloading opening 7 matched with the crankcase are arranged on the valve plate 1, the inner end of the unloading valve hole 6 is communicated with the unloading opening 7 through an unloading valve opening 8, an unloading valve rod 9 is connected in the unloading valve hole 6 in a sliding mode along the axial direction of the unloading valve rod 9, the unloading valve opening 8 can be blocked or conducted through axial movement of the inner end of the unloading valve rod 9, an unloading valve air hole 10 is arranged on the unloading valve hole 6, and the unloading valve air hole 10 is communicated with an unloading air storage cavity arranged on the cylinder cover body. That is, the unloading valve rod 9 moves axially to separate the inner end of the unloading valve rod 9 from the unloading valve port 8 so as to conduct the unloading valve port 8, and the gas generated by the air compressor sequentially passes through the unloading port 7, the unloading valve port 8 and the unloading valve hole 6 and finally enters the unloading gas storage cavity from the unloading valve gas hole 10. Of course, the unloader valve orifice 10 can also be in direct communication with the inlet chamber 2 such that gas can be exhausted from the inlet 4 of the inlet chamber 2.
The utility model discloses simple structure, part are few and the cost is lower, make the inner of uninstallation valve rod 9 and the separation of uninstallation valve port 8 with the help of 9 axial displacement of uninstallation valve rod, in order to switch on uninstallation valve port 8 to produced gas of air compressor machine will loop through uninstallation mouth 7, uninstallation valve port 8 and uninstallation valve opening 6, finally, from uninstallation valve gas pocket 10 department enter into the uninstallation gas storage intracavity or directly discharge from 4 departments of air inlet chamber 2, realize the purpose of uninstallation.
Furthermore, in order to enable the unloading valve rod 9 to stably move along the axial direction of the unloading valve hole 6 so as to plug or conduct the unloading valve port 8 at the inner end of the unloading valve rod 9, the unloading valve hole 6 is a step hole and sequentially comprises a large diameter part and a small diameter part from outside to inside, a first positioning step is formed between the large diameter part and the small diameter part, a large ring part plunger of the unloading valve rod 9 is slidably connected to the large diameter part, a small ring part plunger of the unloading valve rod 9 is slidably connected to the small diameter part, a second positioning step is formed between the large ring part and the small ring part of the unloading valve rod 9, a driving cavity 11 is formed between the first positioning step and the second positioning step, a valve body unloading hole 12 communicated with an external driving air source is formed in the driving cavity 11, a cover plate 13 is covered at the outer port of the large diameter part, and a reset spring 14 is arranged between the unloading valve rod 9 and the cover plate 13. In addition, in this embodiment, the cylinder head body includes a cylinder head and a middle plate in sequence from top to bottom, an unloading signal air passage 18 communicated with the valve body unloading hole 12 is formed between the valve plate 1 and the crankcase, the unloading signal air passage 18 is communicated with an external driving air source through an unloading signal hole 19, the unloading signal hole 19 is formed in the valve plate 1, the middle plate and the cylinder head, the air inlet cavity 2 and the air outlet cavity 3 are formed between the middle plate and the valve plate 1, and the unloading air storage cavity is formed between the cylinder head and the middle plate. Wherein, the external driving air source is controlled by the adjusting valve, namely when the air compressor is charged to make the air pressure in the air cylinder reach the set highest pressure, the adjusting valve is opened to make the signal driving air enter the driving cavity 11 through the unloading signal hole 19 and the unloading signal air passage 18, thereby pushing the inner end of the unloading valve rod 9 to be separated from the unloading valve port 8.
Furthermore, in order to enable the unloading valve rod 9 to stably axially slide, a reset center hole is formed in the outer end face of the unloading valve rod 9 along the axis of the unloading valve rod, a spring valve rod 15 is arranged between the unloading valve rod 9 and the cover plate 13, the spring valve rod 15 is inserted and connected to the reset center hole in a plug-in manner, the reset spring 14 is sleeved on the spring valve rod 15, and a through hole 22 communicating the reset center hole with the unloading valve port 8 is formed in the unloading valve rod 9.
And, in order to improve the leakproofness between unloading valve rod 9 and unloading valve hole 6, the big ring portion and the small ring portion of unloading valve rod 9 are respectively provided with a seal ring 16 between the big diameter portion and the small diameter portion. Meanwhile, in order to improve the sealing ring between the elastic valve rod and the reset central hole, a second sealing ring 17 is arranged between the outer wall surface of the spring valve rod 15 and the reset central hole.
In addition, in this embodiment, the specific structure that the valve block subassembly adopted is: the valve plate assembly comprises an air inlet valve plate 20 and an air outlet valve plate 21 which can be elastically deformed, the air inlet valve plate 20 is fixed on the lower end face of the valve plate 1 and completely covers the port of the air inlet, and the air outlet valve plate 21 is fixed on the valve plate 1 in the air outlet cavity 3 and completely covers the port of the air outlet 5.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides an uninstallation device of air compressor machine, is equipped with air inlet chamber (2) and exhaust chamber (3) with external intercommunication between the cylinder head body and valve plate (1) including setting up valve plate (1) between crankcase and cylinder head body, sets up air inlet (4) with air inlet chamber (2) intercommunication on valve plate (1), gas vent (5) with exhaust chamber (3) intercommunication and distribute and air inlet (4), gas vent (5) matched with valve block subassembly, its characterized in that: the unloading valve is characterized in that the valve plate (1) is provided with an unloading valve hole (6) and an unloading port (7) matched with the crankcase, the inner end of the unloading valve hole (6) is communicated with the unloading port (7) through an unloading valve port (8), an unloading valve rod (9) is connected in the unloading valve hole (6) in a sliding mode along the axial direction of the unloading valve rod, the inner end of the unloading valve rod (9) can move axially to block or conduct the unloading valve port (8), the unloading valve hole (6) is provided with an unloading valve air hole (10), and the unloading valve air hole (10) is communicated with the air inlet cavity (2); or the unloading valve air hole (10) is communicated with an unloading air storage cavity arranged on the cylinder cover body.
2. The unloading device of the air compressor as claimed in claim 1, wherein: unloading valve opening (6) are the step hole, and from outer to interior major diameter portion and minor diameter portion in proper order, form location step one between major diameter portion and the minor diameter portion, the big ring portion plunger sliding connection of uninstallation valve rod (9) is on the major diameter portion, little ring portion plunger sliding connection is on the minor diameter portion, and forms location step two between the big ring portion of uninstallation valve rod (9) and the minor diameter portion, forms drive chamber (11) between location step one and the location step two, sets up valve body uninstallation hole (12) with external drive air supply intercommunication on drive chamber (11), and apron (13) are equipped with to the outer port department lid of major diameter portion, is equipped with reset spring (14) between uninstallation valve rod (9) and apron (13).
3. The unloading device of the air compressor as claimed in claim 2, wherein: the unloading valve comprises an unloading valve rod (9) and is characterized in that a reset central hole is formed in the outer end face of the unloading valve rod (9) along the axis of the unloading valve rod, a spring valve rod (15) is arranged between the unloading valve rod (9) and a cover plate (13), the spring valve rod (15) is inserted and connected with the reset central hole in a plug mode, a reset spring (14) is sleeved on the spring valve rod (15), and a through hole (22) communicated with the reset central hole and an unloading valve port (8) is formed in the unloading valve rod (9).
4. The unloading device of the air compressor as claimed in claim 2, wherein: and a first sealing ring (16) is arranged between the large ring part and the small ring part of the unloading valve rod (9) and the large diameter part and the small diameter part respectively.
5. The unloading device of an air compressor as claimed in claim 3, wherein: and a second sealing ring (17) is arranged between the outer wall surface of the spring valve rod (15) and the reset central hole.
6. The unloading device of the air compressor as claimed in claim 2, wherein: the cylinder cover body is including from last cylinder cap and the intermediate lamella down in proper order, be formed with unloading signal air flue (18) with valve body uninstallation hole (12) intercommunication between valve plate (1) and the crankcase, and unloading signal air flue (18) are through unloading signal hole (19) and external drive air supply intercommunication, and unloading signal hole (19) are seted up on valve plate (1), intermediate lamella and cylinder cap, form between intermediate lamella and valve plate (1) air inlet chamber (2) and exhaust chamber (3), form between cylinder cap and the intermediate lamella uninstallation gas storage chamber.
7. The unloading device of the air compressor as claimed in claim 1, wherein: the valve plate assembly comprises an air inlet valve plate (20) and an air outlet valve plate (21) which can be elastically deformed, the air inlet valve plate (20) is fixed on the lower end face of the valve plate (1) and completely covers a port of an air inlet, and the air outlet valve plate (21) is fixed on the valve plate (1) in the air outlet cavity (3) and completely covers a port of the air outlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220518549.XU CN217421490U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220518549.XU CN217421490U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421490U true CN217421490U (en) | 2022-09-13 |
Family
ID=83179358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220518549.XU Active CN217421490U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421490U (en) |
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2022
- 2022-03-08 CN CN202220518549.XU patent/CN217421490U/en active Active
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