Anti-blocking vertical check valve

Abstract

The utility model relates to the technical field of vertical check valves, in particular to an anti-blocking vertical check valve which mainly comprises a valve body, the top end of the valve body is connected with a connecting end, the top end of the connecting end is connected with a sealing block, the top end of the sealing block is provided with a filter screen cover, and a pulling cleaning assembly is arranged on the inner side of the filter screen cover. The pulling cleaning assembly comprises an inner sliding plate, an extending sliding block is arranged on the outer side of the inner sliding plate, a limiting clamping plate is arranged on the outer side of the extending sliding block, the clamping positioning assembly is arranged on the inner side of the sealing block and comprises a connecting clamping block, and an inner limiting block is arranged at the top end of the connecting clamping block. According to the anti-blocking vertical check valve, the inner sliding plate capable of sliding up and down drives the cleaning brush to clean the periphery of the inner wall of the filter screen cover, when the anti-blocking vertical check valve is not used, the limiting clamping plate extends inwards and outwards to be clamped to the top end of the inner side of the inserting groove, the risk caused by blocking to the check valve is reduced by cleaning the filter screen cover, and the anti-blocking vertical check valve is convenient to use. The use efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical check valve technical field, concretely is a kind of anti-clogging vertical check valve. BACKGROUND

[0002] Vertical check valve is widely used in the pipeline of petroleum, chemical industry, pharmacy, electric power and other industries.In these industries, the valve not only needs to withstand high pressure and high temperature environment, but also needs to have good corrosion resistance and wear resistance, and the sealing performance of connection also needs to be improved.

[0003] The utility model discloses a vertical check valve with publication number CN213685418U, which controls the relative position of the valve core liquid outlet and the lower valve body liquid inlet hole to control the opening and closing of the check valve, so that the check valve is tightly sealed and leakage is reduced. By adjusting the spring pressure, the opening pressure of the check valve is adjusted, so that the pressure in the inlet pipeline is maintained within a suitable range. A sealing ring is installed on one side of the boss and at the root of the sealing wall, further reducing the leakage of the check valve and improving the sealing effect.

[0004] The above-mentioned device enhances the overall sealing performance by fine control of pressure parameters and the addition of a sealing ring during operation, ensuring the stability and safety of the check valve. At the same time, the check valve relies on the built-in filter cover to achieve fine filtration of fluid media, effectively intercepting solid particles, impurities and possible contaminants in the fluid, preventing these substances from entering the system and causing interference or damage to the subsequent process. Over time, impurities will inevitably accumulate on the outside of the filter cover, which is a natural phenomenon caused by the continuous flow of fluid. If this accumulation is not cleaned in a timely and effective manner, it will increase the resistance when the fluid passes through, resulting in a decrease in flow rate and ultimately affecting the transmission efficiency of the entire system. Not only will this reduce production efficiency, but it may also increase energy consumption, leading to increased blockage and wear, ultimately shortening the service life of the equipment. Therefore, optimization and improvement are needed. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of anti-clogging vertical check valve to solve the problem of easy clogging if filter cover cannot be cleaned in time in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-clogging vertical check valve, comprising: a valve body, the top end of the valve body is connected with a connecting end, and the top end of the connecting end is connected with a sealing block, the top end of the sealing block is provided with a filter cover, further comprising a pulling cleaning assembly and a clamping positioning assembly:

[0007] The pulling cleaning assembly is arranged on the inner side of the filter cover, and comprises an inner sliding plate, an extension sliding block is arranged on the outer side of the inner sliding plate, and a limiting clamping plate is arranged on the outer side of the extension sliding block, and the pulling cleaning assembly is used for cleaning the inside of the filter cover. The clamping positioning assembly is arranged on the inner side of the sealing block, and comprises a connecting clamping block, and an inner limiting block is arranged at the top end of the connecting clamping block, and the clamping positioning assembly is used for clamping positioning of the sealing block.

[0008] Preferably, the bottom end of the filter cover is connected with a threaded joint, and the threaded joint is threadedly connected with the sealing block.

[0009] Preferably, the connecting clamping block is arranged on the inner side of the top end of the connecting end, and the outer diameter of the connecting clamping block is slightly smaller than the inner diameter of the sealing block.

[0010] Preferably, the inner limiting block is fixedly arranged on the inner wall of the sealing block, and six inner limiting blocks are arranged, and an adjusting hole is arranged on the inner side of the inner limiting block.

[0011] Preferably, the inner side of the adjusting hole is provided with an elastic top driving block, and the top end of the elastic top driving block is connected with a limiting protrusion.

[0012] Preferably, the inner sliding plate is slidingly connected on the inner side of the filter cover, and the outer wall of the inner sliding plate is connected with a cleaning brush, and the cleaning brush is made of silica gel.

[0013] Preferably, the extension sliding block is fixedly connected on the front and rear ends of the inner sliding plate, an accommodating groove is arranged in the inner side of the extension sliding block, an elastic connecting piece is arranged in the inner side of the accommodating groove, the outer side of the elastic connecting piece is connected with a guide column, and the limiting clamping plate is connected on the end of the guide column.

[0014] Preferably, the outer side of the filter cover is provided with a plug-in groove, and the plug-in groove is used for positioning of the limiting clamping plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The inner sliding plate can drive the cleaning brush to clean the inner wall of the filter cover, and when not in use, the inner and outer extension clamping of the limiting clamping plate is arranged on the inner side of the plug-in groove, the cleaning of the filter cover reduces the risk of blockage of the check valve, and the use efficiency is improved.

[0017] During the connection process of the filter cover, the plug-in connection of the connecting clamping block and the inner limiting block is installed, the positioning is rotated, and the threaded connection of the threaded joint, so that the filter cover is replaced, and the cleaning efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the partially separated three-dimensional structure of the filter cover of this utility model;

[0020] Figure 3 This is a schematic diagram of the partially separated three-dimensional structure of the snap-fit ​​positioning component of this utility model;

[0021] Figure 4 This is a schematic diagram of the partial separation three-dimensional structure of the pull-to-clean component of this utility model.

[0022] In the diagram: 1. Valve body; 2. Connecting end; 3. Sealing block; 4. Filter screen cover; 5. Threaded connector; 6. Connecting block; 7. Inner limit block; 8. Adjustment hole; 9. Elastic actuating block; 10. Limiting protrusion; 11. Inner sliding plate; 12. Cleaning brush; 13. Extension slider; 14. Storage groove; 15. Elastic connector; 16. Guide post; 17. Limiting plate; 18. Insertion groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figure 1 - Figure 4 As shown, this application provides an anti-clogging vertical check valve, including: a valve body 1, a connecting end 2 connected to the top of the valve body 1, and a sealing block 3 connected to the top of the connecting end 2, and a filter screen cover 4 provided on the top of the sealing block 3.

[0026] The inner side of the filter cover 4 is provided with a pull-to-clean assembly, which includes an inner slide plate 11, an extension slider 13 is provided on the outer side of the inner slide plate 11, and a limit plate 17 is provided on the outer side of the extension slider 13. The pull-to-clean assembly is used for cleaning the inside of the filter cover 4.

[0027] Specifically, such as Figure 2 As shown, the bottom end of the filter cover 4 is connected to a threaded connector 5, which is threadedly connected to the sealing block 3. The threaded connection is easy to remove and can be removed for cleaning when the inside is difficult to clean.

[0028] Specifically, such as Figure 4As shown, the inner slide plate 11 is slidingly connected to the inner side of the filter screen cover 4, and the outer wall of the inner slide plate 11 is connected with the cleaning brush 12, which is made of silica gel material. The silica gel has ductility, and can clean the inside of the filter screen cover 4 by extrusion when sliding.

[0029] Specifically, as shown in the figure, Figure 4 The extension sliding block 13 is fixedly connected to the front and rear ends of the inner slide plate 11, and the inside of the extension sliding block 13 is provided with a receiving groove 14. The inside of the receiving groove 14 is connected with an elastic connecting piece 15, and the outside of the elastic connecting piece 15 is connected with a guide column 16. A limiting clamping plate 17 is connected to the end of the guide column 16. The limiting clamping plate 17 is pulled outward, so that the guide column 16 slides in the inside of the receiving groove 14, and the elastic connecting piece 15 is deformed to provide elastic force for subsequent resetting.

[0030] Specifically, as shown in the figure, Figure 2 The outside of the filter screen cover 4 is provided with a plug-in groove 18, and the plug-in groove 18 is used for positioning the limiting clamping plate 17. The plug-in groove 18 is also uniformly divided as a filter hole of the filter screen cover 4, and can fix the limiting clamping plate 17 after clamping.

[0031] The inside of the sealing block 3 is provided with a clamping positioning assembly, and the clamping positioning assembly comprises a connecting clamping block 6, and the top end of the connecting clamping block 6 is provided with an inner limiting block 7. The clamping positioning assembly is used for clamping positioning of the sealing block 3.

[0032] Specifically, as shown in the figure, Figure 2 The connecting clamping block 6 is installed on the top inside of the connecting end 2, and the outer diameter of the connecting clamping block 6 is slightly smaller than the inner diameter of the sealing block 3. The inside of the corresponding clamping block of the connecting clamping block 6 is provided with a groove, which can correspondingly fix the top of the limiting protruding block 10.

[0033] Specifically, as shown in the figure, Figure 3 The inner limiting block 7 is fixedly installed on the inner wall of the sealing block 3, and the inner limiting block 7 is provided with six inner limiting blocks 7. The inside of the inner limiting block 7 is provided with an adjusting hole 8, which is used for adjusting the position of the limiting protruding block 10.

[0034] Specifically, as shown in the figure, Figure 3 The inside of the adjusting hole 8 is provided with an elastic top driving block 9, and the top end of the elastic top driving block 9 is connected with the limiting protruding block 10. The elastic top driving block 9 supports the position of the limiting protruding block 10 with elastic force, which is convenient for up and down adjustment.

[0035] In the embodiment, the inner slide plate 11 can drive the cleaning brush 12 to clean the inner wall of the filter cover 4, and when not in use, the limiting clamping plate 17 is clamped on the inner side top end of the plug-in slot 18, and through the cleaning of the filter cover 4, the risk of clogging to the check valve is reduced, and in the connecting process of the filter cover 4, the plug-in connection of the connecting clamping block 6 and the inner limiting block 7 is rotated to the positioning installation, and the threaded connection of the threaded joint 5, so as to facilitate the filtering replacement of the filter cover 4.

[0036] In the embodiment, the inner slide plate 11 can drive the cleaning brush 12 to clean the inner wall of the filter cover 4, and when not in use, the limiting clamping plate 17 is clamped on the inner side top end of the plug-in slot 18, and through the cleaning of the filter cover 4, the risk of clogging to the check valve is reduced, and in the connecting process of the filter cover 4, the plug-in connection of the connecting clamping block 6 and the inner limiting block 7 is rotated to the positioning installation, and the threaded connection of the threaded joint 5, so as to facilitate the filtering replacement of the filter cover 4.

[0037] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity.

[0038] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, and equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. An anti-clog vertical check valve comprising: The utility model relates to a valve body (1), the top end of valve body (1) is connected with the connecting end (2), and the top end of connecting end (2) is connected with the sealing block (3), the top end of sealing block (3) is provided with filter screen cover (4), characterized by further include: Pull cleaning assembly, pull cleaning assembly is arranged in the inside of filter screen cover (4), and pull cleaning assembly includes inner slide plate (11), the outside of inner slide plate (11) is provided with extension sliding block (13), and the outside of extension sliding block (13) is provided with limiting clamping plate (17), and pull cleaning assembly is used for the cleaning inside filter screen cover (4); Clamping positioning assembly, clamping positioning assembly is arranged in the inside of sealing block (3), and clamping positioning assembly includes connecting clamping block (6), and the top end of connecting clamping block (6) is provided with inner limiting block (7), and clamping positioning assembly is used for the clamping positioning of sealing block (3).

2. A choke-proof vertical check valve according to claim 1, wherein The bottom of the filter screen cover (4) is connected with a threaded joint (5), and the threaded joint (5) is threadedly connected with the sealing block (3).

3. A choke-proof vertical check valve according to claim 1, wherein The connecting clamping block (6) is installed on the inner side of the top end of the connecting end (2), and the outer diameter of the connecting clamping block (6) is slightly smaller than the inner diameter of the sealing block (3).

4. A choke-proof vertical check valve according to claim 1, wherein The inner limiting block (7) is fixedly installed on the inner wall of the sealing block (3), and the inner limiting block (7) is provided with six, and the inside of the inner limiting block (7) is provided with an adjusting hole (8).

5. A choke-proof vertical check valve according to claim 4, wherein The inside of the adjusting hole (8) is provided with an elastic top driving block (9), and the top end of the elastic top driving block (9) is connected with a limiting protruding block (10).

6. A choke-proof vertical check valve according to claim 1, wherein The inner slide plate (11) is slidably connected to the inner side of the filter screen cover (4), and the outer wall of the inner slide plate (11) is connected with a cleaning brush (12), and the cleaning brush (12) is made of silica gel.

7. A choke-proof vertical check valve according to claim 6, wherein The extension sliding block (13) is fixedly connected to the front and rear ends of the inner slide plate (11), and the inside of the extension sliding block (13) is provided with a receiving groove (14), and the inside of the receiving groove (14) is connected with an elastic connecting piece (15), and the outside of the elastic connecting piece (15) is connected with a guide column (16), and the limiting clamping plate (17) is connected to the end of the guide column (16).

8. A choke-proof vertical check valve according to claim 1, wherein The outside of the filter screen cover (4) is provided with a plug-in groove (18), and the plug-in groove (18) is used for positioning the limiting clamping plate (17).

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