CN214267314U - Air compressor protection device for engine of automobile crane - Google Patents

Air compressor protection device for engine of automobile crane Download PDF

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Publication number
CN214267314U
CN214267314U CN202120274722.1U CN202120274722U CN214267314U CN 214267314 U CN214267314 U CN 214267314U CN 202120274722 U CN202120274722 U CN 202120274722U CN 214267314 U CN214267314 U CN 214267314U
Authority
CN
China
Prior art keywords
air
export
air compressor
valve
import
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 - Fee Related
Application number
CN202120274722.1U
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Chinese (zh)
Inventor
季运涛
徐磊
王照楠
冯晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Liugong Crane Co Ltd
Original Assignee
Anhui Liugong Crane Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Liugong Crane Co Ltd filed Critical Anhui Liugong Crane Co Ltd
Priority to CN202120274722.1U priority Critical patent/CN214267314U/en
Application granted granted Critical
Publication of CN214267314U publication Critical patent/CN214267314U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an air compressor protection device of an automobile crane engine; comprises a pressure regulating valve, a radiating pipe, an air dryer and a four-loop protection valve; the air compressor's export communicates with the import of air-vent valve, and the export of air-vent valve communicates with the import of cooling tube, and the export of cooling tube communicates with air dryer's import, and air dryer's export communicates with the import of four return circuit protection valves, and the export and the outside gas circuit of four return circuit protection valves communicate. The compressed air output by the air compressor flows into the air dryer through the pressure regulating valve and the radiating pipe. The pressure regulating valve only has a straight-through function. However, when the inlet of the air dryer is completely frozen, the compressed air at the outlet of the pressure regulating valve cannot be normally conveyed into the brake pipeline, and is exhausted through the pressure relief port of the pressure regulating valve, so that the air compressor and the sealing element of the exhaust valve are protected, and the service life of the air compressor is prolonged.

Description

Air compressor protection device for engine of automobile crane
Technical Field
The utility model relates to an automobile crane engine air compressor machine protection device.
Background
Compressed air output by an air compressor of an existing automobile crane is stored in an air storage cylinder after being radiated, but an existing pressure limiting device is generally installed on an air dryer, and when the air compressor reaches the limit working load of the dryer, an exhaust port of the dryer carries out exhaust unloading, so that the normal work of the air compressor is guaranteed. However, in severe weather, when the inlet of the air dryer is completely frozen, the compressed air output by the air compressor is accumulated in the pipeline from the air compressor to the inlet of the air dryer, and the compressed air cannot be unloaded, so that the air compressor is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an automobile crane engine air compressor machine protection device that rational in infrastructure, facilitate the use is provided.
In order to solve the technical problem, the utility model provides an air compressor protection device of an automobile crane engine;
comprises a pressure regulating valve, a radiating pipe, an air dryer and a four-loop protection valve;
the air compressor's export communicates with the import of air-vent valve, and the export of air-vent valve communicates with the import of cooling tube, and the export of cooling tube communicates with air dryer's import, and air dryer's export communicates with the import of four return circuit protection valves, and the export and the outside gas circuit of four return circuit protection valves communicate.
Preferably, the outlet of the four-loop protection valve is communicated with the inlet of the air tank, and the outlet of the air tank is communicated with an external air passage.
With this structure, the compressed air output from the air compressor flows into the air dryer through the pressure regulating valve and the heat radiating pipe. The pressure regulating valve only has a straight-through function. However, when the inlet of the air dryer is completely frozen, the compressed air at the outlet of the pressure regulating valve cannot be normally conveyed into the brake pipeline, and is exhausted through the pressure relief port of the pressure regulating valve, so that the air compressor and the sealing element of the exhaust valve are protected, and the service life of the air compressor is prolonged.
For more clear understanding the technical content of the utility model, this protection device for automobile crane engine air compressor machine will be referred to as this protection device for short below.
The beneficial effect of this protection device does: in severe weather, after the inlet of the air dryer is completely frozen, the compressed air of the air compressor can be normally unloaded; after the pressure regulating valve is unloaded, the unloading valve is closed, and the unloading valve cannot be in an exhaust state for a long time, so that subsequent normal work is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the protection device.
Detailed Description
As shown in fig. 1
The protection device comprises a pressure regulating valve 2, a radiating pipe 3, an air dryer 4 and a four-loop protection valve 5.
The outlet of the air compressor 1 is communicated with the inlet of the pressure regulating valve 2, the outlet of the pressure regulating valve 2 is communicated with the inlet of the radiating pipe 3, the outlet of the radiating pipe 3 is communicated with the inlet of the air dryer 4, the outlet of the air dryer 4 is communicated with the inlet of the four-loop protection valve 5, the outlet of the four-loop protection valve 5 is communicated with the inlet of the air tank 6, and the outlet of the air tank 6 is communicated with an external air path.
The compressed air output from the air compressor 1 flows into the air dryer 4 through the pressure regulating valve 2 and the heat radiating pipe 3. The pressure regulating valve 2 only serves as a through connection. However, when the inlet of the air dryer 4 is completely frozen, the compressed air at the outlet of the pressure regulating valve 2 cannot be normally conveyed into the brake pipeline, and is exhausted through the pressure relief port of the pressure regulating valve 2, so that the air compressor 1 and the exhaust valve sealing member are protected, and the service life of the air compressor 1 is prolonged.
The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.

Claims (2)

1. The utility model provides an automobile crane engine air compressor machine protection device which characterized in that:
comprises a pressure regulating valve, a radiating pipe, an air dryer and a four-loop protection valve;
the air compressor's export communicates with the import of air-vent valve, and the export of air-vent valve communicates with the import of cooling tube, and the export of cooling tube communicates with air dryer's import, and air dryer's export communicates with the import of four return circuit protection valves, and the export and the outside gas circuit of four return circuit protection valves communicate.
2. The air compressor protection device for the engine of the automobile crane as claimed in claim 1, wherein:
the outlet of the four-loop protection valve is communicated with the inlet of the air tank, and the outlet of the air tank is communicated with an external air path.
CN202120274722.1U 2021-01-30 2021-01-30 Air compressor protection device for engine of automobile crane Expired - Fee Related CN214267314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120274722.1U CN214267314U (en) 2021-01-30 2021-01-30 Air compressor protection device for engine of automobile crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120274722.1U CN214267314U (en) 2021-01-30 2021-01-30 Air compressor protection device for engine of automobile crane

Publications (1)

Publication Number Publication Date
CN214267314U true CN214267314U (en) 2021-09-24

Family

ID=77770574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120274722.1U Expired - Fee Related CN214267314U (en) 2021-01-30 2021-01-30 Air compressor protection device for engine of automobile crane

Country Status (1)

Country Link
CN (1) CN214267314U (en)

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GR01 Patent grant
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: 20210924