CN217002231U - Unloading device of air compressor - Google Patents
Unloading device of air compressor Download PDFInfo
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- CN217002231U CN217002231U CN202220490530.9U CN202220490530U CN217002231U CN 217002231 U CN217002231 U CN 217002231U CN 202220490530 U CN202220490530 U CN 202220490530U CN 217002231 U CN217002231 U CN 217002231U
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Abstract
The utility model belongs to the technical field of air compressors, and particularly relates to an unloading device of an air compressor, which comprises a valve plate arranged between a crank case and a cylinder cover body, wherein an air inlet cavity and an air outlet cavity are arranged between the cylinder cover body and the valve plate, the valve plate is provided with an air inlet, an air outlet and a valve plate assembly, the valve plate is provided with an unloading air cavity and an unloading hole, the end surface of the valve plate is slidably connected with a sliding sheet capable of completely covering the unloading hole, the sliding sheet is provided with an unloading combining hole, the sliding sheet can drive the unloading combining hole to coincide with the unloading hole, and the unloading air cavity is communicated with an unloading air storage cavity arranged on the cylinder cover body. The utility model has simple structure, less parts and lower cost, and the unloading combination hole can be coincided with the unloading hole by the sliding of the sliding sheet, so that the gas generated by the air compressor passes through the unloading combination hole, the unloading hole and the unloading air cavity in sequence and finally enters the unloading air storage cavity or is directly discharged from the air inlet of the air inlet cavity, thereby realizing the purpose of unloading.
Description
The technical field is as follows:
the utility model belongs to the technical field of air compressors, and particularly relates to an unloading device of an air compressor.
Background art:
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.
And when the air pressure in the air cylinder reaches the set maximum pressure by inflating the air compressor, the unloading device needs to be opened to unload the redundant gas generated by the air compressor, the air cylinder stops inflating continuously, and when the air pressure in the air cylinder reaches the set minimum pressure, the unloading device is closed to enable the air compressor to inflate the air cylinder continuously. However, the conventional unloading device has the problems of various parts, complex structure, high cost and the like.
The utility model content is as follows:
the utility model aims to provide an unloading device of an air compressor, which has the advantages of simple structure, few parts and lower cost.
The utility model is realized by the following steps:
an unloading device of an air compressor comprises a valve plate arranged between a crank case 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 air cavity and unloading holes which are communicated with the unloading air cavity and matched with the crank case, the end surface of the valve plate is slidably connected with a sliding sheet which can completely cover the unloading holes, the sliding sheet is provided with unloading closing holes, the sliding sheet can drive the unloading closing holes to be overlapped with the unloading holes, and the unloading air cavity is communicated with the air inlet cavity; or the unloading air cavity is communicated with an unloading air storage cavity arranged on the cylinder cover body.
In foretell uninstallation device of air compressor machine, seted up the drive hole on the valve plate, the port department lid in drive hole is equipped with the apron, and the interior plunger sliding connection of drive hole has the uninstallation valve rod and has seted up the bar through-hole along the axial, and the uninstallation valve rod runs through the bar through-hole through the locating pin and is connected with the gleitbretter, is equipped with reset spring between the bottom surface in uninstallation valve rod and drive hole, is located and sets up the valve body uninstallation hole that communicates with external driving air source on the drive hole between uninstallation valve rod and the end cover.
In the unloading device of the air compressor, the inner end surface of the unloading valve rod is provided with the positioning hole along the axial direction, the bottom surface of the driving hole is provided with the positioning column inserted in the positioning hole, and the return spring is positioned in the positioning hole and sleeved on the positioning column.
In the unloading device of the air compressor, the sealing rings are arranged between the inner end and the outer end of the unloading valve rod and the driving hole.
In the unloading device of the air compressor, a sliding groove is formed in the lower end face of the valve plate, the sliding piece is located in the sliding groove, a guide sliding hole is formed in the sliding piece along the axial direction of the sliding piece, and a guide pin which is connected to the guide sliding hole in a sliding mode is fixed on the sliding groove.
In the above-mentioned uninstallation device of an air compressor machine, the cylinder lid body is formed with the uninstallation signal air flue that communicates with valve body uninstallation hole between valve plate and the crankcase including cylinder cap and intermediate lamella from last to lower 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 lid, forms between intermediate lamella and the valve plate air inlet chamber, exhaust chamber and uninstallation air cavity, form between cylinder cap and the intermediate lamella uninstallation gas storage chamber.
In the above unloading device of 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 has the outstanding advantages that:
the utility model has simple structure, less parts and lower cost, and the unloading combining hole can be coincided with the unloading hole by means of the sliding sheet, so that the gas generated by the air compressor sequentially passes through the unloading combining hole, the unloading hole and the unloading air cavity and finally enters the unloading air storage cavity or is directly discharged from the air inlet of the air inlet cavity, thereby realizing the purpose of unloading.
Description of the drawings:
FIG. 1 is a bottom view of the valve plate of the present invention with one side unloader open and the other side unloader closed;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A-A;
figure 3 is a top view of the valve plate of the present invention with one side unloading means open and the other side unloading means 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 air cavity; 7. unloading the hole; 8. sliding a sheet; 9. unloading and combining the holes; 10. a drive aperture; 11. a cover plate; 12. unloading the valve rod; 13. a strip-shaped through hole; 14. positioning pins; 15. a return spring; 16. a valve body relief hole; 17. a positioning column; 18. a seal ring; 19. a chute; 20. a guide slide hole; 21. a guide pin; 22. unloading the signal air channel; 23. unloading the signal hole; 24. an air inlet valve plate; 25. an exhaust valve plate.
The specific implementation mode is as follows:
the utility model will now be further described by way of specific examples, with reference to figures 1 to 3:
an unloading device of an air compressor comprises a valve plate 1 arranged between a crank case 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 air cavity 6 and an unloading hole 7 which is communicated with the unloading air cavity 6 and matched with the crank case are arranged on the valve plate 1, a sliding sheet 8 which can completely cover the unloading hole 7 is connected to the end face of the valve plate 1 in a sliding mode, an unloading closing hole 9 is arranged on the sliding sheet 8, the unloading closing hole 9 can be driven by the sliding sheet 8 to coincide with the unloading hole 7, and the unloading air cavity 6 is communicated with an unloading cavity arranged on the cylinder cover body. Namely, when the sliding sheet 8 slides to drive the load unloading combining hole 9 to coincide with the unloading hole 7, the gas generated by the air compressor sequentially passes through the load unloading combining hole 9, the unloading hole 7 and the unloading air cavity 6, and finally enters the unloading air storage cavity. Of course, the unloading air chamber 6 can also be directly communicated with the air inlet chamber 2, so that the air can be discharged from the air inlet 4 of the air inlet chamber 2.
The utility model has simple structure, less parts and lower cost, and the load unloading combination hole 9 can coincide with the unloading hole 7 by the sliding of the sliding sheet 8, so that the gas generated by the air compressor passes through the load unloading combination hole 9, the unloading hole 7 and the unloading air cavity 6 in sequence, finally enters the unloading air storage cavity or is directly discharged from the air inlet 4 of the air inlet cavity 2, thereby realizing the purpose of unloading.
Furthermore, in order to drive the sliding of the sliding piece 8, to realize the coincidence of the unloading combining hole 9 and the unloading hole 7 and the complete covering of the unloading hole 7, a driving hole 10 is provided on the valve plate 1, a cover plate 11 is provided at the port part of the driving hole 10, an unloading valve rod 12 is slidably connected to the plunger in the driving hole 10, and a bar-shaped through hole 13 is provided along the axial direction, the unloading valve rod 12 penetrates through the bar-shaped through hole 13 through a positioning pin 14 to be connected with the sliding piece 8, a return spring 15 is provided between the bottom surfaces of the unloading valve rod 12 and the driving hole 10, and a valve body unloading hole 16 communicated with an external driving air source is provided on the driving hole 10 between the unloading valve rod 12 and the end cover. Meanwhile, 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 22 communicated with the valve body unloading hole 16 is formed between the valve plate 1 and the crankcase, the unloading signal air passage 22 is communicated with an external driving air source through the unloading signal hole 23, the unloading signal hole 23 is formed in the valve plate 1, the middle plate and the cylinder head, the air inlet cavity 2, the air exhaust cavity 3 and the unloading air cavity 6 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. The external driving air source is controlled by a regulating valve, namely when the air compressor is inflated to enable the air pressure in the air storage cylinder to reach the set highest pressure, the regulating valve is opened to enable signal driving air to enter the valve body unloading hole 16 through the unloading signal hole 23 and the unloading signal air passage 22, so that the unloading valve rod 12 is pushed to drive the sliding sheet 8 to slide through the positioning pin 14, and the unloading combining hole 9 can coincide with the unloading hole 7.
Furthermore, in order to enable the unloading valve rod 12 to stably slide inside and outside the driving hole 10, a positioning hole is formed in the inner end face of the unloading valve rod 12 along the axial direction of the unloading valve rod, a positioning column 17 inserted into the positioning hole is arranged on the bottom face of the driving hole 10, and the return spring 15 is located in the positioning hole and sleeved on the positioning column 17.
Meanwhile, in order to improve the sealing performance between the unloader valve stem 12 and the actuating rod to prevent the unloader device from operating normally, sealing rings 18 are provided between the inner and outer ends of the unloader valve stem 12 and the actuating hole 10.
In addition, in order to prevent the sliding vane 8 from moving and affecting the normal operation of other devices, a sliding groove 19 is formed in the lower end surface of the valve plate 1, the sliding vane 8 is located in the sliding groove 19, a guide sliding hole 20 is formed in the sliding vane 8 along the axial direction of the sliding vane, and a guide pin 21 slidably connected to the guide sliding hole 20 is fixed to the sliding groove 19.
In addition, in this embodiment, the specific structure adopted by the valve plate assembly is as follows: the valve plate assembly comprises an air inlet valve plate 24 and an air outlet valve plate 25 which can be elastically deformed, the air inlet valve plate 24 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 25 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 by 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 an unloading air cavity (6) and an unloading hole (7) which is communicated with the unloading air cavity (6) and matched with a crankcase are arranged on the valve plate (1), a sliding sheet (8) capable of completely covering the unloading hole (7) is connected to the end face of the valve plate (1) in a sliding mode, a unloading closing hole (9) is formed in the sliding sheet (8), the sliding sheet (8) can drive the unloading closing hole (9) to coincide with the unloading hole (7) in a sliding mode, and the unloading air cavity (6) is communicated with the air inlet cavity (2); or the unloading air cavity (6) 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: drive hole (10) have been seted up on valve plate (1), the port department lid of drive hole (10) is equipped with apron (11), plunger sliding connection has uninstallation valve rod (12) in drive hole (10) and has seted up bar through-hole (13) along the axial, uninstallation valve rod (12) run through bar through-hole (13) through locating pin (14) and are connected with gleitbretter (8), be equipped with reset spring (15) between the bottom surface of uninstallation valve rod (12) and drive hole (10), be located drive hole (10) between uninstallation valve rod (12) and the end cover and set up valve body uninstallation hole (16) with external drive air supply intercommunication.
3. The unloading device of the air compressor as claimed in claim 2, wherein: the inner end face of the unloading valve rod (12) is provided with a positioning hole along the axial direction, the bottom face of the driving hole (10) is provided with a positioning column (17) inserted into the positioning hole, and the return spring (15) is located in the positioning hole and sleeved on the positioning column (17).
4. The unloading device of the air compressor as claimed in claim 2, wherein: and sealing rings (18) are arranged between the inner end and the outer end of the unloading valve rod (12) and the driving hole (10).
5. The unloading device of the air compressor as claimed in claim 1, wherein: the slide valve is characterized in that a sliding groove (19) is formed in the lower end face of the valve plate (1), the slide piece (8) is located in the sliding groove (19), a guide sliding hole (20) is formed in the slide piece (8) in the axial direction of the slide piece, and a guide pin (21) which is connected to the guide sliding hole (20) in a sliding mode is fixed on the sliding groove (19).
6. The unloading device of the air compressor as claimed in claim 1, wherein: the cylinder cover body comprises a cylinder cover and a middle plate which are arranged from top to bottom in sequence, an unloading signal air passage (22) communicated with an unloading hole (16) of the valve body is formed between the valve plate (1) and the crankcase, the unloading signal air passage (22) is communicated with an external driving air source through the unloading signal hole (23), the unloading signal hole (23) is formed in the valve plate (1), the middle plate and the cylinder cover, an air inlet cavity (2), an air exhaust cavity (3) and an unloading air cavity (6) are formed between the middle plate and the valve plate (1), and an unloading air storage cavity is formed between the cylinder cover and the middle plate.
7. The unloading device of the air compressor as claimed in claim 1, wherein: the valve plate assembly comprises an air inlet valve plate (24) and an air outlet valve plate (25) which can be elastically deformed, the air inlet valve plate (24) 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 (25) 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 |
|---|---|---|---|
| CN202220490530.9U CN217002231U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220490530.9U CN217002231U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217002231U true CN217002231U (en) | 2022-07-19 |
Family
ID=82367709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220490530.9U Active CN217002231U (en) | 2022-03-08 | 2022-03-08 | Unloading device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217002231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977930A (en) * | 2023-02-28 | 2023-04-18 | 采埃孚商用车系统(青岛)有限公司 | Unloader and air compressor |
| CN115977930B (en) * | 2023-02-28 | 2025-07-25 | 采埃孚商用车系统(青岛)有限公司 | Unloading device and air compressor |
-
2022
- 2022-03-08 CN CN202220490530.9U patent/CN217002231U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977930A (en) * | 2023-02-28 | 2023-04-18 | 采埃孚商用车系统(青岛)有限公司 | Unloader and air compressor |
| CN115977930B (en) * | 2023-02-28 | 2025-07-25 | 采埃孚商用车系统(青岛)有限公司 | Unloading device and air compressor |
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