CN-224214349-U - Exhaust valve for pump

CN224214349UCN 224214349 UCN224214349 UCN 224214349UCN-224214349-U

Abstract

The utility model provides an exhaust valve for a pump, which comprises a valve body, an air inlet pipe, an air outlet pipe and a filtering mechanism, wherein the air inlet pipe is arranged at the bottom of the valve body, the air outlet pipe is arranged on the outer wall of the air inlet pipe, the filtering mechanism comprises a connecting ring, two splicing shells, four filter screens, filter cotton, non-woven fabrics and active carbon, the connecting ring is arranged on the inner wall of the air inlet pipe, the two splicing shells are connected with the connecting ring through threads, clamping grooves are respectively formed in the inner walls of the two splicing shells, the four filter screens are respectively clamped in the corresponding clamping grooves, the air inlet pipe is divided into three spaces by the four filter screens, and the filter cotton, the non-woven fabrics and the active carbon are sequentially arranged in the three spaces. In the exhaust valve for the pump, which is disclosed by the embodiment of the utility model, various impurities mixed in the air can be prevented from entering the exhaust valve through the filtering mechanism in the process of exhausting the pump through the exhaust valve, so that the valve core of the exhaust valve is blocked, and the normal use of the pump is influenced.

Inventors

LIN YUEHUI

Assignees

衡阳跃辉机械有限公司

Dates

Publication Date: 20260508
Application Date: 20250520

Claims (5)

1. An exhaust valve for a pump is characterized by comprising a valve body, an air inlet pipe, an air outlet pipe and a filtering mechanism, wherein, The air inlet pipe is arranged at the bottom of the valve body; the air outlet pipe is arranged on the outer wall of the valve body; The filtering mechanism comprises a connecting ring, two splice shells, four filter screens, filter cotton, non-woven fabrics and active carbon, wherein, The connecting ring is arranged on the inner wall of the air inlet pipe; The two splice shells are connected with the connecting ring through threads; Clamping grooves are respectively formed in the inner walls of the two splicing shells; The four filter screens are respectively clamped in the corresponding clamping grooves, the air inlet pipe is divided into three spaces by the four filter screens, and the filter cotton, the non-woven fabrics and the activated carbon are sequentially arranged in the three spaces.
2. The exhaust valve for a pump according to claim 1, wherein a screw bolt is provided on the valve body, and a nut is screwed to an outer wall of the screw bolt.
3. The exhaust valve for a pump according to claim 1, wherein a rubber ring is fixed to the inside of the intake pipe, and a gasket is provided at the bottom wall of the intake pipe.
4. The exhaust valve for pump according to claim 1, wherein the outer walls of the two splice cases are screw-coupled with a connection ring.
5. The exhaust valve for pump according to claim 1, wherein a sealing ring is installed on an inner wall of the air outlet pipe.

Description

Exhaust valve for pump Technical Field The utility model relates to the technical field of pumps, in particular to an exhaust valve for a pump. Background Pumps are machines that deliver or pressurize fluids. It transmits mechanical energy of the prime mover or other external energy to the liquid, causing the liquid to increase in energy. The pump is mainly used for conveying water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and other liquids, and can also be used for conveying liquid and gas mixtures and liquids containing suspended solids. In the process of delivering fluid through a pump, it is often necessary to discharge the gas in the pump by means of an exhaust valve, thereby ensuring the normal operation of the pump. The medium fed during operation of the pump is often not pure, but is often contaminated with various impurities, such as fine particulate matter, possibly silt, metal debris, etc., and also elongated fibers, such as filiform fibers or hairs, etc. When the exhaust valve is opened to perform the exhaust operation, these impurities flow together with the medium. Because the valve core and the duct structure of the exhaust valve are relatively fine, impurities are easily retained therein during the flow process. Once impurities enter the valve core part, the valve core can be blocked, so that the valve core cannot be normally opened or closed, and the exhaust function is affected. Disclosure of utility model The present utility model aims to solve at least to some extent one of the technical problems in the above-described technology. Therefore, an object of the present utility model is to provide an exhaust valve for a pump, which can prevent various impurities entrained in air from entering the exhaust valve through a filtering mechanism, and prevent the impurities from invading the exhaust valve to cause a valve core to be blocked, so as to ensure stable operation of a pump set. In order to achieve the aim, the first aspect of the utility model provides an exhaust valve for a pump, which comprises a valve body, an air inlet pipe, an air outlet pipe and a filtering mechanism, wherein the air inlet pipe is arranged at the bottom of the valve body, the air outlet pipe is arranged on the outer wall of the valve body, the filtering mechanism comprises a connecting ring, two spliced shells, four filter screens, filter cotton, non-woven fabrics and activated carbon, wherein the connecting ring is arranged on the inner wall of the air inlet pipe, the two spliced shells are connected with the connecting ring through threads, clamping grooves are respectively formed in the inner walls of the two spliced shells, the four filter screens are respectively clamped in the corresponding clamping grooves, the air inlet pipe is divided into three spaces by the four filter screens, and the filter cotton, the non-woven fabrics and the activated carbon are sequentially arranged in the three spaces. In addition, the exhaust valve for the pump provided by the utility model can also have the following additional technical characteristics: Specifically, be provided with the screw bolt on the valve body, the outer wall screw thread of screw bolt is connected with the nut. Specifically, the inside of intake pipe is fixed with the rubber ring, and the diapire of intake pipe is provided with sealed pad. Specifically, the outer wall screw thread of two splice shells is connected with the go-between. Specifically, the inner wall of the air outlet pipe is provided with a sealing ring. Compared with the prior art, the exhaust valve has the beneficial effects that various impurities mixed in the air can be prevented from entering the exhaust valve through the filtering mechanism in the process of exhausting the pump through the exhaust valve, so that the valve core of the exhaust valve is blocked, and the normal use of the pump is influenced. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model. Drawings The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which: FIG. 1 is a schematic view of a pump exhaust valve according to an embodiment of the present utility model; FIG. 2 is a schematic diagram of a pump exhaust valve filter mechanism according to one embodiment of the present utility model; FIG. 3 is a schematic view of a structure of a rubber ring of an exhaust valve for a pump and an air inlet pipe in cooperation with each other according to an embodiment of the present utility model; Fig. 4 is a schematic view of a structure of a rubber ring and a gasket for a vent valve for a pump according to an embodiment of the utility model. The valve comprises a val