Exhaust valve for pump

Abstract

The exhaust valve for the pump comprises a valve body, an air inlet pipe, an air outlet pipe and a filtering mechanism, and 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 filtering nets, filtering cotton, non-woven fabric and activated carbon, and the connecting ring is arranged on the inner wall of the air inlet pipe; the two splicing shells are in threaded connection with the connecting ring; clamping grooves are respectively formed in the inner walls of the two splicing shells; the four filter screens are clamped in the corresponding clamping grooves respectively and divide the air inlet pipe into three spaces, and the filter cotton, the non-woven fabric and the activated carbon are sequentially arranged in the three spaces. According to the exhaust valve for the pump, in the exhaust process of the pump through the exhaust valve, various impurities mixed in air can be prevented from entering the exhaust valve through the filtering mechanism, so that a valve element of the exhaust valve is prevented from being clamped, and normal use of the pump is affected.

Description

Technical Field

[0001] This utility model relates to the technical field of pumps, and in particular to an exhaust valve for pumps. Background Technology

[0002] A pump is a machine that transports or pressurizes fluids. It transfers mechanical energy from a prime mover or other external energy sources to a liquid, increasing the liquid's energy. Pumps are mainly used to transport liquids such as water, oil, acids and alkalis, emulsions, suspensions, and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids. During the process of transporting fluids using a pump, it is often necessary to use an vent valve to release the gas inside the pump, thereby ensuring the normal operation of the pump.

[0003] When a pump is running, the medium it transports is often not a pure substance; it frequently contains various impurities, such as tiny particulate matter, which may be mud, sand, metal shavings, or long fibers, like filamentous fibers or hair. When the exhaust valve is opened for venting, these impurities flow along with the medium. Because the valve core and orifice structure of the exhaust valve are relatively delicate, impurities can easily become trapped during flow. Once impurities enter the valve core, they may jam it, preventing the valve from opening or closing properly and affecting the venting function. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a pump exhaust valve that, through a filtration mechanism, prevents various impurities in the air from entering the exhaust valve and causing the valve core to become stuck, thereby ensuring the stable operation of the pump unit.

[0006] To achieve the above objectives, the first aspect of this utility model provides a pump exhaust valve, comprising: a valve body, an inlet pipe, an outlet pipe, and a filtering mechanism, wherein the inlet pipe is disposed at the bottom of the valve body; the outlet pipe is disposed on the outer wall of the valve body; the filtering mechanism comprises a connecting ring, two splicing shells, four filter screens, filter cotton, non-woven fabric, and activated carbon, wherein the connecting ring is disposed on the inner wall of the inlet pipe; the two splicing shells are threadedly connected to the connecting ring; the inner walls of the two splicing shells are respectively provided with slots; the four filter screens are respectively secured in corresponding slots, and the four filter screens divide the inlet pipe into three spaces, with the filter cotton, non-woven fabric, and activated carbon sequentially disposed in the three spaces.

[0007] In addition, the pump exhaust valve proposed above according to this utility model may also have the following additional technical features:

[0008] Specifically, the valve body is provided with a threaded bolt, and the outer wall of the threaded bolt is connected with a nut.

[0009] Specifically, a rubber ring is fixed inside the intake pipe, and a sealing gasket is provided on the bottom wall of the intake pipe.

[0010] Specifically, the outer walls of the two spliced ​​shells are threaded together with connecting rings.

[0011] Specifically, a sealing ring is installed on the inner wall of the vent pipe.

[0012] Compared with the prior art, the present invention has the following advantages: during the process of venting the pump through the exhaust valve, the filter mechanism can prevent various impurities in the air from entering the exhaust valve, thereby causing the exhaust valve core to be stuck and affecting the normal use of the pump.

[0013] Additional aspects and advantages of this invention 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 invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a pump exhaust valve according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a pump exhaust valve filter mechanism according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a pump exhaust valve rubber ring and an intake pipe used in conjunction with an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of a pump exhaust valve using a rubber ring and a sealing gasket in accordance with an embodiment of the present invention.

[0019] Reference numerals in the attached diagram: 1. Valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Threaded bolt; 5. Nut; 6. Filter mechanism; 61. Connecting ring; 62. Splicing shell; 63. Slot; 64. Filter screen; 65. Filter cotton; 66. Non-woven fabric; 67. Activated carbon; 7. Connecting ring; 8. Rubber ring; 9. Sealing gasket; 10. Sealing ring. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following describes an embodiment of the pump exhaust valve of this utility model with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, the pump exhaust valve of this utility model embodiment includes: valve body 1, air inlet pipe 2, air outlet pipe 3, and filter mechanism 6.

[0023] The air inlet pipe 2 is located at the bottom of the valve body 1, and the air outlet pipe 3 is located on the outer wall of the valve body 1.

[0024] The filtration mechanism 6 includes a connecting ring 61, two splicing shells 62, four filter screens 64, filter cotton 65, non-woven fabric 66, and activated carbon 67.

[0025] The connecting ring 61 is set on the inner wall of the air intake pipe 2. The two splicing shells 62 are threadedly connected to the connecting ring 61. The inner walls of the two splicing shells 62 are respectively provided with slots 63. The four filter screens 64 are respectively engaged in the corresponding slots 63. The four filter screens 64 divide the air intake pipe 2 into three spaces. The filter cotton 65, non-woven fabric 66 and activated carbon 67 are arranged in the three spaces in sequence.

[0026] Specifically, before the gas inside the pump needs to be discharged, the operator can sequentially engage one of the four filter screens 64 into the splicing shell 62 through the slot 63. Then, the filter cotton 65, non-woven fabric 66, and activated carbon 67 are placed into the air inlet pipe 2 in sequence. Next, the other splicing shell 62 is engaged with the outside of the four filter screens 64. Then, the two splicing shells 62 are rotated and threadedly connected to the connecting ring 61, thereby installing them into the air inlet pipe 2. Finally, the valve body 1 is installed on the outside of the valve body 1.

[0027] After the gas enters the intake pipe 2, it passes through two spliced ​​shells 62. When the gas passes through the filter screen 64, some larger impurities will be blocked by the filter screen 64. Then the gas will pass through the filter cotton 65. At this time, the filter cotton 65 will retain the dirt and small impurities mixed in the gas inside the filter cotton 65. Then the gas passes through the non-woven fabric 66, which will further filter it. Finally, the gas will pass through the activated carbon 67. The activated carbon 67 can adsorb some even smaller impurities in the gas, thereby preventing impurities from entering the valve body 1 and causing blockage. After a period of time, the user can remove and replace or clean the filter cotton 65, non-woven fabric 66 and activated carbon 67.

[0028] In one embodiment of this application, such as Figure 1 As shown, a threaded bolt 4 is provided on the valve body 1, and a nut 5 is threadedly connected to the outer wall of the threaded bolt 4.

[0029] Understandably, the user can control the venting of the valve body 1 by rotating the nut 5 connected to the outer wall of the threaded bolt 4.

[0030] In one embodiment of this application, such as Figures 3-4 As shown, a rubber ring 8 is fixed inside the air intake pipe 2, and a sealing gasket 9 is provided on the bottom wall of the air intake pipe 2.

[0031] It is understandable that a rubber ring 8 is fixed inside the intake pipe 2. In the process of connecting the valve body 1 to the pump, the rubber ring 8 is inserted into the exhaust pipe of the pump body, and then the sealing gasket 9 can seal the connection point between the intake pipe 2 and the exhaust pipe of the pump body, thereby ensuring its sealing effect.

[0032] In one embodiment of this application, such as Figure 2 As shown, the outer walls of the two spliced ​​shells 62 are threaded with connecting rings 7.

[0033] Understandably, the two splicing shells 62 can be fixed into a whole by setting the connecting ring 7.

[0034] In one embodiment of this application, such as Figure 4 As shown, the inner wall of the air outlet pipe 3 is fitted with the sealing ring 10.

[0035] It is understandable that the sealing ring 10 installed on the inner wall of the air outlet pipe 3 can seal the connection point when the air outlet pipe 3 is connected to other devices.

[0036] In summary, during the process of venting the pump through the vent valve, the filtration mechanism can prevent various impurities in the air from entering the vent valve, which could cause the vent valve core to become stuck and affect the normal operation of the pump.

[0037] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pump exhaust valve, characterized in that, include: The valve body, inlet pipe, outlet pipe, and filter mechanism, among which, The air intake pipe is located at the bottom of the valve body; The air outlet pipe is located on the outer wall of the valve body; The filtration mechanism includes a connecting ring, two splicing shells, four filter screens, filter cotton, non-woven fabric, and activated carbon, wherein... The connecting ring is disposed on the inner wall of the air intake pipe; The two splicing shells are threadedly connected to the connecting ring; The inner walls of the two splicing shells are respectively provided with slots; The four filters are respectively engaged in the corresponding slots, and the four filters divide the air intake pipe into three spaces, in which the filter cotton, the non-woven fabric and the activated carbon are arranged sequentially.

2. The pump exhaust valve according to claim 1, characterized in that, The valve body is provided with a threaded bolt, and the outer wall of the threaded bolt is threaded with a nut.

3. The pump exhaust valve according to claim 1, characterized in that, A rubber ring is fixed inside the air intake pipe, and a sealing gasket is provided on the bottom wall of the air intake pipe.

4. The pump exhaust valve according to claim 1, characterized in that, The outer walls of the two spliced ​​shells are threaded together with connecting rings.

5. The pump exhaust valve according to claim 1, characterized in that, A sealing ring is installed on the inner wall of the vent pipe.

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