A snap-on check valve

Abstract

The utility model relates to a kind of snap-on type check valve, belong to check valve technical field, a kind of snap-on type check valve, including check valve main body, the both ends of check valve main body are provided with dismounting assembly, the inside of check valve main body is provided with filter cleaning assembly, the inside of check valve main body is opened, the side of check valve main body is provided with liquid inlet, the other side of check valve main body is provided with liquid outlet, the utility model is by filter screen and sealing ring along with liquid inlet is placed into the positioning groove opened in check valve main body, then put into snap-on, make snap-on and the sealing ring of filter screen side contact, insert round bar into one of card slot and rotate, so that screw nut is fixed on check valve main body, and simultaneously press down snap-on, filter screen is fixed in positioning groove by the press-down of snap-on, simplify maintenance process, without disassembling entire valve body, reduce dismounting step and time, reduce the risk of sealing failure caused by repeatedly dismounting snap-on.

Description

Technical Field

[0001] This utility model belongs to the field of one-way valve technology, specifically relating to a ferrule-type one-way valve. Background Technology

[0002] Compression fitting check valves quickly connect to pipelines via compression fittings, enabling unidirectional fluid flow control, preventing backflow, and protecting pumps, instruments, and other equipment within the system from impact damage. They balance sealing reliability with ease of installation, eliminating the need for complex processes such as welding, thus reducing installation and maintenance costs. They are suitable for small to medium diameter pipe applications, meeting the fluid direction control needs of hydraulic and pneumatic systems, improving system operational stability, and providing an efficient solution for temporary pipelines or frequent disassembly / reassembly scenarios, ensuring the safety and efficiency of fluid delivery.

[0003] For example, in the Chinese utility model publication CN209325114U entitled "A Conveniently Installed and Removed Compression Fitting Check Valve," a valve cover and a valve body are included. The valve body is embedded in one side surface of the valve cover, and a valve head is installed at one end of the valve cover. Double-clamp combinations are provided at the top and bottom of the valve head. A nut is installed inside the valve head, with a connector installed at one end of the nut and a ferrule installed at the other end of the valve head. A valve seat is installed in the center of the valve cover. This prior art, through its sealing packing, prevents media leakage during operation. The valve cover gasket prevents fluid leakage within the valve cover. The nut facilitates the installation and removal of the valve head and connector, and the double-clamp combination facilitates the installation and removal of the ferrule and valve head. The ferrule forms an effective seal with good sealing performance and convenient installation and removal. However, when cleaning is required, it must be completely disassembled, resulting in low efficiency. Therefore, for easier cleaning, a compression fitting check valve is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed ferrule-type check valve in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A ferrule-type one-way valve includes a one-way valve body, disassembly components at both ends of the one-way valve body, a filter cleaning component inside the one-way valve body, a positioning groove inside the one-way valve body, an inlet on one side of the one-way valve body, and an outlet on the other side of the one-way valve body.

[0007] As a further optimization of this utility model, the filter cleaning assembly includes two sealing rings disposed inside the one-way valve body, with a filter screen disposed at an adjacent end of the two sealing rings, and a retainer disposed on one side of one of the sealing rings.

[0008] As a further optimization of this utility model, one side of the other sealing ring contacts the positioning groove, and the tops of the two sleeves contact the interior of the disassembly assembly.

[0009] As a further optimization of this utility model, the outer side of one of the card sleeves is disposed inside the liquid inlet, and the outer side of the other card sleeve is disposed inside the liquid outlet.

[0010] As a further optimization of this utility model, the disassembly assembly includes a first nut and a second nut that are threaded onto both sides of the one-way valve body. Each of the first nut and the second nut has three slots inside, and a round rod is detachably connected inside the slots.

[0011] As a further optimization of this utility model, the interior of the first nut is in contact with the liquid inlet, and the interior of the second nut is in contact with the liquid outlet.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model involves placing the filter screen and sealing ring into the positioning groove of the one-way valve body along the liquid inlet, then inserting a retainer so that the retainer contacts the sealing ring on one side of the filter screen. A round rod is inserted into one of the slots and rotated to fix the nut onto the one-way valve body. At the same time, the retainer is pressed down, and the filter screen is fixed in the positioning groove by the pressure of the retainer. This simplifies the maintenance process, eliminates the need to disassemble the entire valve body, reduces disassembly and assembly steps and time, and reduces the risk of seal failure caused by repeated disassembly of the retainer.

[0014] 2. This utility model involves placing the pipe into the body of the one-way valve, then inserting a round rod into one of the slots and rotating it to fix the nut to the body of the one-way valve. This causes the clamp to press down and fix the pipe, shortening the installation time, simplifying the operation process, and making it especially suitable for emergency scenarios such as on-site repairs, thus improving efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the nut of this utility model;

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a sectional view of the first integral part of this utility model;

[0019] Figure 5 This is a schematic diagram of the second overall structure of this utility model;

[0020] Figure 6 This is the view of the filter screen and sealing ring of this utility model in combination.

[0021] In the diagram: 1. One-way valve body; 2. Disassembly assembly; 201. Nut 1; 202. Slot; 203. Round rod; 204. Nut 2; 3. Filter cleaning assembly; 301. Sleeve; 302. Sealing ring; 303. Filter screen; 4. Positioning groove; 5. Liquid outlet; 6. Liquid inlet. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example 1

[0024] like Figure 1 , Figure 4 As shown, a ferrule-type check valve includes a check valve body 1, which is used to accommodate other components and guide fluid flow. A positioning groove 4 is provided inside the check valve body 1. The positioning groove 4 is circular and concave, which can initially limit the position of the filter screen 303 to ensure that the filter screen 303 can be accurately placed in the preset position during installation, so as to avoid affecting the filtration effect due to position deviation. A liquid inlet 6 is provided on one side of the check valve body 1. The liquid inlet 6 serves as the channel for the medium to enter the check valve and provides an entrance for the installation of the filter cleaning component 3. A liquid outlet 5 is provided on the other side of the check valve body 1. The liquid outlet 5 serves as the channel for the filtered medium to flow out, and together with the liquid inlet 6, it forms a complete path for the medium to flow.

[0025] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the one-way valve body 1 is internally equipped with a filter cleaning assembly 3. The filter cleaning assembly 3 is used to filter the medium passing through the one-way valve, removing impurities and ensuring the purity of the medium, while also facilitating cleaning. The filter cleaning assembly 3 includes two sealing rings 302. The sealing rings 302 enhance the sealing between the ferrule 301 and related components, preventing leakage of the medium during flow and preventing damage to the filter screen 303 due to excessive clamping force. A filter screen 303 is provided at an adjacent end of each of the two sealing rings 302. The filter screen 303 intercepts solid impurities in the medium, preventing impurities from entering downstream equipment and causing damage. A ferrule 301 is fixedly connected to one side of one of the sealing rings 302. The ferrule 301 corresponds to the inlet 6 and outlet 5 respectively, realizing the filtering of the medium. The filter screen 303 and related components are fixed. One side of the sealing ring 302 contacts the positioning groove 4. The positioning groove 4 supports and positions the sealing ring 302, ensuring that the sealing ring 302 will not shift due to media impact during operation. The top of the ferrule 301 contacts the inside of the disassembly assembly 2. The force of the disassembly assembly 2 can be used to press or loosen the ferrule 301, thereby completing the fixing or replacement of the filter screen 303. The outside of one ferrule 301 is set inside the liquid inlet 6, so that the ferrule 301 cooperates with the liquid inlet 6 to initially guide and filter the upstream flowing medium. The outside of the other ferrule 301 is set inside the liquid outlet 5, which cooperates with the liquid outlet 5 to ensure that the filtered medium can flow out smoothly, while also fixing the downstream components.

[0026] like Figure 1 , Figure 2 , Figure 4 As shown, disassembly components 2 are provided at both ends of the one-way valve body 1. Disassembly components 2 provide a convenient operating structure for the installation and disassembly of the filter cleaning component 3 and pipelines, facilitating later maintenance, replacement of the filter screen 303, and installation and disassembly of the pipelines. Disassembly components 2 include a nut 201, which is threaded to fix the upstream sleeve 301. The internal thread of nut 201 is connected to one side of the one-way valve body 1, ensuring that nut 201 is not easily loosened during operation. A nut 204 is threaded to the other side of the one-way valve body 1. Nut 204 is used... The sleeve 301 on the fixed downstream side has three slots 202 inside the nut 201. The slots 202 cooperate with the round rod 203. By rotating the round rod 203, the nut 201 is rotated, making the operation easier. The nut 204 has three slots 202 inside. The inside of the nut 201 contacts the liquid inlet 6, which seals and fixes the end of the liquid inlet 6 to prevent the medium from leaking from the port connection. The inside of the nut 204 contacts the liquid outlet 5, which enhances the sealing and stability of the liquid outlet 5 and ensures good sealing performance of the overall one-way valve.

[0027] It should be noted that, in use, this type of ferrule-type check valve is operated as follows: First, the filter screen 303 and the sealing ring 302 are placed into the positioning groove 4 of the check valve body 1 through the liquid inlet 6. Then, the ferrule 301 is inserted so that it contacts the sealing ring 302 on one side of the filter screen 303. At the same time, the pipe to be installed is placed into the check valve body 1. Then, the nut 201 is screwed onto the check valve body 1 so that it contacts the ferrule 301. Then, the round rod 203 is inserted into one of the slots 202 and rotated so that the nut 201 is fixed on the check valve body 1 and the ferrule 301 is pressed down. The pipe to be installed is then fixed in the check valve body 1. At the same time, the filter screen 303 is also fixed in the positioning groove 4 by the pressure of the sealing ring 302 from the ferrule 301. When disassembly is required, the operation is reversed.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A snap-on check valve comprising a check valve body (1), characterized in that, The one-way valve body (1) is provided with disassembly components (2) at both ends, the one-way valve body (1) is provided with a filter cleaning component (3), the one-way valve body (1) is provided with a positioning groove (4), the one-way valve body (1) is provided with a liquid inlet (6) on one side, and the one-way valve body (1) is provided with a liquid outlet (5) on the other side. The filter cleaning assembly (3) includes two sealing rings (302) disposed inside the one-way valve body (1), with a filter screen (303) disposed at one adjacent end of the two sealing rings (302), and a retainer (301) disposed on one side of one of the sealing rings (302).

2. A collar check valve according to claim 1, wherein: One side of the other sealing ring (302) is in contact with the positioning groove (4), and the top of the sleeve (301) is in contact with the interior of the disassembly assembly (2).

3. A collar check valve according to claim 1 wherein: One of the ferrules (301) is externally located inside the inlet (6), and the other ferrule (301) is externally located inside the outlet (5).

4. A collar check valve according to claim 1 wherein: The disassembly assembly (2) includes a nut one (201) and a nut two (204) threadedly connected to both sides of the one-way valve body (1). The nut one (201) and the nut two (204) are provided with three slots (202) on the outside. A round rod (203) is detachably connected inside the slot (202).

5. A collar check valve according to claim 4, wherein: The interior of nut one (201) is in contact with the liquid inlet (6), and the interior of nut two (204) is in contact with the liquid outlet (5).

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