Ventilation valve for preventing pipeline of vacuum material pumping machine from being blocked

Abstract

The utility model discloses a scavenging air valve for preventing a pipeline of a vacuum pumping machine from being blocked. The scavenging air valve comprises a filter cartridge, an adjusting valve and a connecting pipe, an opening is formed in the side face of the connecting pipe, the two ends of the adjusting valve are communicated between the opening and one end of the filter cylinder respectively, the two ends of the connecting pipe are communicated with a feeding pipe of the vacuum material pumping machine, materials are sucked through the feeding pipe of the vacuum material pumping machine, and then the other end of the filter cylinder sucks air into the feeding pipe. The connecting structure of the vacuum material pumping machine and the steel wire hose is optimized, the function that the steel wire hose can supplement air is added, and the possibility of material blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum material extraction, in particular to a ventilation valve for preventing pipelines of vacuum material extraction machines from being blocked. Background Art

[0002] Solid vacuum extractors are currently playing an irreplaceable role in many industries, significantly resolving the problem of difficult material transportation. While vacuum extractors are primarily used to extract powdered or granular solid materials, they can also cause material clogging of the pipes. This is due to the poor flow of solids during the extraction process. When the material fills the hose, it creates significant resistance, leading to blockage. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the connection structure between the vacuum pump and the steel hose is optimized, and the function of adding air to the steel hose is increased to avoid the problem of material blockage. The utility model provides a ventilation valve for preventing the blockage of the vacuum pump pipeline, comprising a filter cartridge, a regulating valve and a connecting pipe; the connecting pipe is provided with an opening on the side, and the two ends of the regulating valve are respectively connected between the opening and one end of the filter cartridge, and the two ends of the connecting pipe are connected to the feed pipe of the vacuum pump. The material is sucked through the feed pipe of the vacuum pump, and the other end of the filter cartridge then draws air into the feed pipe.

[0004] The beneficial effect of this equipment is that when the vacuum extractor is turned on, the feed pipe generates negative pressure to absorb the material. During the extraction process, a certain amount of air is added to the connecting pipe through the filter cartridge, so that the material in the feed pipe flows with the flow of air, thereby effectively preventing the feed pipe from being filled up and completely solving the problem of the feed pipe being blocked by material during the extraction process.

[0005] Preferably, the filter cartridge is equipped with a detachable air filter. During the extraction process, air passes through the air filter and enters the feed pipe, preventing impurities from being drawn into the air and affecting the quality of the material. After the extraction is completed or during discharge, the air filter prevents the material from flowing back into the air and contaminating the air.

[0006] Both the filter cartridge and the air filter element are cylindrical. A sealing ring is located at the bottom of the air filter element, sealing the filter cartridge. Air is then drawn in through the hollow portion of the air filter element. The sealing ring and the lower end of the filter cartridge are detachable, using common connection methods such as snaps or threads. Once the sealing ring is removed, the air filter element can be easily removed, making assembly and disassembly convenient.

[0007] Preferably, the connecting pipe, regulating valve and filter cartridge are fixedly connected in sequence.

[0008] Preferably, the opening of the regulating valve is adjustable. By changing the opening of the regulating valve, the amount of air entering the feed pipe can be adjusted to meet the extraction requirements of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0010] Figure 1 Schematic diagram of the structure of the filter cartridge, regulating valve and connecting pipe in this embodiment;

[0011] Figure 2 Schematic diagram of the structure of the air filter element in this embodiment.

[0012] In the accompanying drawings, there are filter cartridge 1, regulating valve 2, connecting pipe 3, and air filter element 4. DETAILED DESCRIPTION

[0013] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0014] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0015] like Figure 1 As shown, this embodiment provides a ventilation valve for preventing blockage of a vacuum pump pipeline, comprising a filter cartridge 1, a regulating valve 2, and a connecting pipe 3. An opening is provided on the side of the connecting pipe 3, which can be located in the middle of the connecting pipe 3. The opening is a processing position reserved for welding and fixing.

[0016] The opening of the regulating valve 2 in this embodiment is adjustable, specifically by turning the handle in the middle of the regulating valve 2 to change the opening of the regulating valve 2, thereby adjusting the air flow through the regulating valve 2. The two ends of the regulating valve 2 are respectively connected between the opening and one end of the filter cartridge 1, and the two ends of the connecting pipe 3 are connected to the feed pipe of the vacuum pump. Specifically, one end of the regulating valve 2 is fixedly connected to the opening by welding, so that the regulating valve 2 and the connecting pipe 3 form an integrated structure. The other end of the regulating valve 2 can also be connected to one end of the filter cartridge 1 by welding, or can be detachably connected by threads. As long as they are connected, the specific connection method is not limited in this embodiment.

[0017] like Figure 1 and Figure 2 As shown, in order to prevent debris from entering the connecting tube 3 and also to prevent the material from overflowing from the filter cartridge 1, a detachable air filter element 4 is provided in the filter cartridge 1 in this embodiment. The specific detachable connection method is: the filter cartridge 1 and the air filter element 4 are both cylindrical, and the bottom of the air filter element 4 is provided with a sealing ring that seals with the filter cartridge 1, so that the air is inhaled from the hollow part of the air filter element 4. The sealing ring and the lower end of the filter cartridge 1 are detachable, for example, by using common connection methods such as snaps and threads. After removing the sealing ring, the air filter element 4 can be easily taken out, and the disassembly and assembly are convenient. During the extraction process, the air passes through the air filter element 4 and enters the feed pipe to prevent impurities in the inhaled air from affecting the quality of the material. After the extraction is completed or when discharging the material, the air filter element 4 prevents the material from flowing back into the air and polluting the air.

[0018] The connecting pipe 3 in this embodiment is connected to the feed pipe of the vacuum pump. In order to facilitate disassembly and assembly, the two ends of the connecting pipe 3 are usually connected between the feed pipe and the feed port of the vacuum pump. When the vacuum pump is turned on, the feed pipe generates negative pressure to absorb the material. According to the different types of materials and the different diameters of the material particles, the opening of the regulating valve 2 is adaptively adjusted. During the extraction process, an appropriate amount of air is added to the connecting pipe 3 through the filter cartridge 1, so that the material in the feed pipe flows with the flow of air, thereby effectively avoiding the problem of the feed pipe being filled and blocked. The ventilation valve of this embodiment has a simple structure, obvious effect, and the air supply volume is controllable, easy to adjust, and extremely convenient to use.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A ventilation valve for preventing blockage of a vacuum pumping machine pipeline, characterized in that: It includes a filter cartridge, a regulating valve and a connecting pipe; an opening is provided on the side of the connecting pipe, and the two ends of the regulating valve are respectively connected between the opening and one end of the filter cartridge, and the two ends of the connecting pipe are connected to the feed pipe of the vacuum extractor. The material is sucked through the feed pipe of the vacuum extractor, and the other end of the filter cartridge then sucks air into the feed pipe.

2. The ventilation valve for preventing the blockage of the vacuum pumping machine pipeline according to claim 1, characterized in that: A detachable air filter element is arranged in the filter cartridge.

3. The ventilation valve for preventing the blockage of the vacuum pumping machine pipeline according to claim 2, characterized in that: The filter cartridge and the air filter element are both cylindrical. A sealing ring is provided at the bottom of the air filter element to seal with the filter cartridge, so that air is sucked in from the hollow part of the air filter element.

4. The ventilation valve for preventing the blockage of the vacuum pumping machine pipeline according to claim 3, characterized in that: The sealing ring and the lower end of the filter cartridge are detachable.

5. The ventilation valve for preventing the blockage of the vacuum pumping machine pipeline according to claim 1, characterized in that: The connecting pipe, regulating valve and filter cartridge are fixedly connected in sequence.

6. The ventilation valve for preventing the blockage of the vacuum pumping machine pipeline according to claim 1, characterized in that: The opening degree of the regulating valve is adjustable.

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