Sealing valve assembly of check valve

Abstract

The utility model provides a check valve sealing valve assembly, and relates to the technical field of check valves, the check valve sealing valve assembly comprises a valve body, an upper leakproof structure and a valve assembly, the left end of the valve body is provided with an inlet, the right end of the valve body is provided with an outlet, the middle of the upper part of the valve body is provided with an upper valve seat, and the upper end of the upper valve seat is provided with an upper connecting flange; the upper end of the upper connecting flange is covered with a cover plate, multiple sets of fastening bolts are installed between the cover plate and the upper connecting flange, an upper leakage-proof structure is installed on the lower portion in the upper valve seat, a valve assembly is arranged in the middle in the valve body, and an upper sleeve is arranged at the upper end of the cover plate. According to the utility model, the upper valve seat is convenient to tightly prevent leakage, the upper and lower filter screen cover structures are arranged at the valve port, passing media are comprehensively filtered, medium impurities are prevented from being adhered to the inner wall of the valve, and the valve is externally reinforced in shaping, middle in buffering impact and internally tightly sealed, so that the valve is safer and more reliable to use.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a check valve sealing valve component. Background Art

[0002] A check valve is a valve that automatically opens and closes the valve disc depending on the flow of the medium itself to prevent the medium from flowing back. It is also called a non-return valve, a one-way valve, a reverse flow valve, and a back pressure valve. A check valve is an automatic valve, and its main function is to prevent the medium from flowing back, to prevent the pump and the drive motor from reversing, and to release the container medium.

[0003] In the specification of a sealing assembly with a check valve in the prior art (publication number CN206130208U), it is mentioned that "the pressurized pipe is connected to a diverter pipe, the check valve includes a valve body, and an inlet channel and an outlet channel are provided at both ends of the valve body. A double-layer valve plate is provided in the valve body, and the double-layer valve plate includes a first plate and a second plate, one end of the first plate and one end of the second plate are movably connected and commonly connected to the upper part of the inlet channel of the valve body cavity, the other end of the first plate is arranged at the lower part of the inlet channel, and the other end of the second plate is arranged at the lower part of the outlet channel". However, due to the long-term impact between the piston and the valve in the prior art, the valve port may be deformed or have a gap, which is not safe and reliable to use. In addition, medium impurities are easily accumulated in the valve, resulting in a reduction in the channel port, affecting the normal transportation of the medium, and is not convenient and practical. Utility Model Content

[0004] In order to overcome the defects of the prior art, a check valve sealing valve assembly is provided to solve the problems in the prior art that the long-term impact between the piston and the valve may cause deformation or gaps in the valve port, which is not safe and reliable to use, and medium impurities are easily accumulated in the valve, resulting in a reduction in the channel port, affecting the normal transportation of the medium, which is not convenient and practical.

[0005] To achieve the above-mentioned purpose, a check valve sealing valve assembly is provided, including a valve body, an upper leak-proof structure and a valve assembly, the left end of the valve body is provided with an inlet, and the right end of the valve body is provided with an outlet, an upper valve seat is provided in the middle of the upper part of the valve body, and an upper connecting flange is provided at the upper end of the upper valve seat, a cover plate is provided on the upper end cover of the upper connecting flange, and a plurality of sets of fastening bolts are installed between the cover plate and the upper connecting flange, an upper leak-proof structure is installed in the lower inner part of the upper valve seat, and a valve assembly is provided in the middle inner part of the valve body, and the centers of the upper leak-proof structure and the valve assembly are located on the same axis.

[0006] Furthermore, an upper sleeve is provided at the upper end of the cover plate, and a valve stem is movably connected to the center of the cover plate through a thread, and a turntable is provided at the upper end of the valve stem.

[0007] Furthermore, the lower rod body of the valve stem is located in the upper valve seat, and a piston plate is provided at the lower end of the valve stem, and the piston plate is movable in a vertical direction.

[0008] Furthermore, three groups of upper sealing sleeves are provided at the lower part of the upper leak-proof structure, and a separator is provided between two adjacent groups of upper sealing sleeves, and a spring is provided on the upper end surface of the upper sealing sleeve on the upper side, and the upper sealing sleeve and the separator are sleeved outside the lower rod body of the valve stem, and the upper sealing sleeve and the separator are both made of silicone rubber.

[0009] Furthermore, an outer ring is sleeved in the middle of the valve assembly, the outer ring is made of ceramic silicon, and a middle reinforcing hoop is sleeved inside the outer ring, the middle reinforcing hoop is made of rubber, and multiple groups of reinforcing ribs are arranged inside the middle reinforcing hoop.

[0010] Furthermore, an inner sealing sleeve is arranged on the inner side of the middle reinforcing hoop, the inner sealing sleeve is made of silicone material, and a valve is provided in the inner sealing sleeve.

[0011] Furthermore, an upper filter cover is provided at the upper end of the valve, an upper buffer block is fixed between the left side surface of the upper filter cover and the upper part of the valve assembly, and a lower filter cover is provided at the lower end of the valve, a lower buffer block is fixed between the right side surface of the lower filter cover and the lower part of the valve assembly, and both the upper buffer block and the lower buffer block are made of silicone rubber.

[0012] The beneficial effects of the utility model are:

[0013] 1. In the utility model, by rotating the valve stem clockwise, the piston plate can be driven to move straight down and block in the valve, thereby cutting off the medium. When the valve stem is rotated counterclockwise, the piston plate can be driven to move up, so that the piston plate leaves the valve, thereby releasing the medium. The operation is flexible and convenient.

[0014] 2. The upper anti-leakage structure of the utility model is set to prevent the medium from entering the upper valve seat, which is helpful for the purpose of safety and anti-leakage, and is safe and reliable to use.

[0015] 3. The setting of the middle valve of the valve assembly in the utility model makes the piston plate blocked therein, and the pressing is tight and reliable. The middle reinforcing hoop has the effect of buffering the impact, and the reinforcing ribs plastically arranged inside the middle reinforcing hoop have the effect of strengthening the shape of the valve port. At the same time, the setting of the outer ring has the effect of strengthening the protection, making it safer, more sealed and durable.

[0016] 4. The setting of the lower filter cover in the utility model allows the medium to be filtered through the lower layer first and then pass through the valve when it flows in, and the setting of the upper filter cover plays an upper filtering role, adopting double filtration for the medium to avoid the medium from clogging the pipeline, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a rendering of an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the upper anti-leakage structure of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a valve assembly according to an embodiment of the present utility model.

[0021] In the figure: 1. valve body; 10. inlet; 11. outlet; 12. upper valve seat; 13. upper connecting flange; 14. cover plate; 15. fastening bolts; 16. upper sleeve; 17. valve stem; 18. turntable; 19. piston plate; 2. upper leak-proof structure; 20. upper sealing sleeve; 21. separator; 22. spring; 3. valve assembly; 30. valve; 31. inner sealing sleeve; 32. upper buffer block; 33. upper filter cover; 34. lower buffer block; 35. lower filter cover; 36. outer ring; 37. middle reinforcing hoop; 38. reinforcing rib. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0023] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0024] Figure 1 The effect diagram of the embodiment of the utility model is as follows: Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model, Figure 3 The schematic diagram of the upper anti-leakage structure of the utility model embodiment and Figure 4 This is a schematic diagram of a valve assembly according to an embodiment of the present utility model.

[0025] Reference Figures 1 to 4As shown, the utility model provides a check valve sealing valve assembly, including a valve body 1, an upper leak-proof structure 2 and a valve assembly 3, an inlet 10 is arranged at the left end of the valve body 1, and an outlet 11 is arranged at the right end of the valve body 1, an upper valve seat 12 is arranged in the middle of the upper part of the valve body 1, and an upper connecting flange 13 is arranged at the upper end of the upper valve seat 12, a cover plate 14 is arranged on the upper end cover of the upper connecting flange 13, and a plurality of sets of fastening bolts 15 are installed between the cover plate 14 and the upper connecting flange 13, an upper leak-proof structure 2 is installed in the lower part of the upper valve seat 12, and a valve assembly 3 is arranged in the middle part of the valve body 1, and the centers of the upper leak-proof structure 2 and the valve assembly 3 are located on the same axis.

[0026] In this embodiment, an upper sleeve 16 is provided at the upper end of the cover plate 14, and a valve stem 17 is movably connected to the center of the cover plate 14 through a thread, and a turntable 18 is provided at the upper end of the valve stem 17; the lower rod body of the valve stem 17 is located in the upper valve seat 12, and a piston plate 19 is provided at the lower end of the valve stem 17, and the piston plate 19 is movable in the vertical direction.

[0027] As a preferred embodiment, in the utility model, by rotating the valve stem 17 clockwise, the piston plate 19 can be driven to move straight down and block in the valve 30, thereby cutting off the medium. When the valve stem 17 is rotated counterclockwise, the piston plate 19 can be driven to move up, so that the piston plate 19 leaves the valve 30, thereby releasing the medium. The operation is flexible and convenient.

[0028] In this embodiment, three groups of upper sealing sleeves 20 are arranged at the lower part of the upper anti-leakage structure 2, and a separator 21 is arranged between two adjacent groups of upper sealing sleeves 20, and a spring 22 is arranged on the upper end surface of the upper sealing sleeve 20 on the upper side, and the upper sealing sleeve 20 and the separator 21 are sleeved outside the lower rod body of the valve stem 17, and the upper sealing sleeve 20 and the separator 21 are both made of silicone rubber.

[0029] As a preferred embodiment, the upper anti-leakage structure 2 of the utility model is provided to prevent the medium from entering the upper valve seat 12, which contributes to the purpose of safety and anti-leakage, and is safe and reliable to use.

[0030] In this embodiment, an outer ring 36 is sleeved in the middle of the valve assembly 3. The outer ring 36 is made of ceramic silicon, and a middle reinforcing hoop 37 is sleeved inside the outer ring 36. The middle reinforcing hoop 37 is made of rubber, and multiple groups of reinforcing ribs 38 are arranged inside the middle reinforcing hoop 37; an inner sealing sleeve 31 is arranged on the inner side of the middle reinforcing hoop 37. The inner sealing sleeve 31 is made of silicone, and a valve 30 is opened inside the inner sealing sleeve 31.

[0031] As a preferred embodiment, the setting of the middle valve 30 of the valve assembly 3 in the utility model enables the piston plate 19 to be blocked therein and pressed tightly and reliably, and the middle reinforcing hoop 37 has the effect of buffering the impact, and the reinforcing ribs 38 plastically arranged inside the middle reinforcing hoop 37 play a role in strengthening the stability of the valve port shape, while the setting of the outer ring 36 plays a role in strengthening the protection, making it safer, more sealed and durable.

[0032] In this embodiment, an upper filter cover 33 is provided at the upper end of the valve 30, an upper buffer block 32 is fixed between the left side surface of the upper filter cover 33 and the upper part of the valve assembly 3, and a lower filter cover 35 is provided at the lower end of the valve 30, a lower buffer block 34 is fixed between the right side surface of the lower filter cover 35 and the lower part of the valve assembly 3, and the upper buffer block 32 and the lower buffer block 34 are both made of silicone rubber.

[0033] As a preferred embodiment, the setting of the lower filter cover 35 in the utility model allows the medium to first pass through the lower layer of filtration when it flows in, and then pass through the valve, and the setting of the upper filter cover 33 plays an upper layer of filtration, using double filtration for the medium to avoid medium clogging the pipeline, which is more convenient and practical.

[0034] The utility model can effectively solve the problems in the prior art that long-term impact between the piston and the valve may cause deformation or gap in the valve port, which is not safe and reliable to use, and medium impurities are easily accumulated in the valve, resulting in a reduction in the channel port, affecting the normal transportation of the medium, and is not convenient and practical. The utility model facilitates the tight leakage prevention of the upper valve seat, and sets upper and lower filter mesh cover structures at the valve port to comprehensively filter the passing medium to prevent medium impurities from adhering to the inner wall of the valve. The valve is also strengthened and shaped on the outside, buffered by impact, and tightly sealed on the inside, making it safer and more reliable to use.

[0035] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A check valve sealing valve assembly, characterized in that: The invention comprises a valve body (1), an upper anti-leakage structure (2) and a valve assembly (3); the left end of the valve body (1) is provided with an inlet (10), and the right end of the valve body (1) is provided with an outlet (11); an upper valve seat (12) is provided in the middle of the upper part of the valve body (1), and an upper connecting flange (13) is provided at the upper end of the upper valve seat (12); a cover plate (14) is provided on the upper end cover of the upper connecting flange (13), and a plurality of sets of fastening bolts (15) are installed between the cover plate (14) and the upper connecting flange (13); an upper anti-leakage structure (2) is installed in the lower part of the upper valve seat (12), and a valve assembly (3) is provided in the middle part of the valve body (1), and the centers of the upper anti-leakage structure (2) and the valve assembly (3) are located on the same axis.

2. A check valve sealing valve assembly according to claim 1, characterized in that: An upper sleeve (16) is provided at the upper end of the cover plate (14), and a valve stem (17) is movably connected to the center of the cover plate (14) via a thread, and a rotating disk (18) is provided at the upper end of the valve stem (17).

3. A check valve sealing valve assembly according to claim 2, characterized in that: The lower rod body of the valve stem (17) is located in the upper valve seat (12), and a piston plate (19) is provided at the lower end of the valve stem (17), and the piston plate (19) is movable in a vertical direction.

4. A check valve sealing valve assembly according to claim 1, characterized in that: Three groups of upper sealing sleeves (20) are arranged at the lower part of the upper anti-leakage structure (2), and a separator (21) is arranged between two groups of upper sealing sleeves (20) adjacent to each other, and a spring (22) is arranged on the upper end surface of the upper sealing sleeve (20) on the upper side, and the upper sealing sleeve (20) and the separator (21) are sleeved on the lower stem body of the valve stem (17), and the upper sealing sleeve (20) and the separator (21) are both made of silicone rubber.

5. A check valve sealing valve assembly according to claim 1, characterized in that: An outer ring (36) is sleeved in the middle of the valve assembly (3), the outer ring (36) is made of ceramic silicon, and a middle reinforcing hoop (37) is sleeved in the outer ring (36), the middle reinforcing hoop (37) is made of rubber, and a plurality of groups of reinforcing ribs (38) are arranged in the middle reinforcing hoop (37).

6. A check valve sealing valve assembly according to claim 5, characterized in that: An inner sealing sleeve (31) is arranged on the inner side of the middle reinforcing hoop (37). The inner sealing sleeve (31) is made of silica gel and a valve (30) is provided in the inner sealing sleeve (31).

7. A check valve sealing valve assembly according to claim 6, characterized in that: An upper filter cover (33) is provided at the upper end of the valve (30), an upper buffer block (32) is fixed between the left side surface of the upper filter cover (33) and the upper part of the valve assembly (3), and a lower filter cover (35) is provided at the lower end of the valve (30), a lower buffer block (34) is fixed between the right side surface of the lower filter cover (35) and the lower part of the valve assembly (3), and both the upper buffer block (32) and the lower buffer block (34) are made of silicone rubber.

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