Anti-blocking filtering stop valve

Abstract

The invention provides an anti-blocking filtering stop valve, and belongs to the technical field of valves. The problem that in the prior art, a filter screen is usually arranged at the position of a pipeline opening of a pipeline, when impurities on the filter screen need to be cleaned, the filter screen needs to be taken down, and due to the operation mode, an operator is extremely inconvenient to clean the filter screen is solved. The anti-blocking filtering stop valve comprises a valve body, a valve element is arranged in the valve body, a water inlet and a water outlet are formed in the valve body, a water outlet part is arranged at the position, opposite to the water outlet, of the valve body, and a mounting structure used for filtering and preventing blocking is arranged at the position, opposite to the water outlet, of the valve body. The anti-clogging filter has the advantages of anti-clogging function and filtering function.

Description

Technical Field

[0001] The invention belongs to the technical field of valves and relates to a valve, in particular to an anti-clogging filtering stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. The closing principle of the stop valve is to rely on the valve stem pressure to make the valve disc sealing surface fit closely with the valve seat sealing surface to prevent the medium from flowing. Therefore, when the valve is closed, pressure must be applied to the valve disc to prevent the forced sealing surface from leaking. The stop valve is the most widely used valve. Due to the small friction between the sealing surfaces during the opening and closing process, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is not only suitable for medium and low pressures, but also for high pressures.

[0003] At present, the stop valve is generally filtered through a filter screen, and large particles of garbage are filtered through the filter screen to make the water flowing out of the stop valve relatively clean. However, this will cause the filter screen to be blocked, which will indirectly lead to the blockage of the stop valve, and also affect the normal use of the stop valve. In addition, the filter screen arranged in the prior art is usually arranged at the pipe mouth of the pipe. When the impurities on the filter screen need to be cleaned, the filter screen needs to be removed. Such an operation method makes it extremely inconvenient for the operator to clean the filter screen. Summary of the invention

[0004] The purpose of the present invention is to provide a valve with anti-clogging function and filtering function in view of the above problems existing in the prior art.

[0005] The objectives of the present invention can be achieved through the following technical solutions: an anti-clogging filter stop valve, comprising a valve body, a valve core is arranged in the valve body, a water inlet for water intake and a water outlet for water discharge are arranged in the valve body, characterized in that a water outlet is arranged on the valve body and relative to the water outlet, a mounting structure for filtering and anti-clogging is arranged on the valve body and at a position relative to the water outlet, the mounting structure is composed of a mounting piece, a water baffle, a connecting pipe, a filter frame and a reset structure, the mounting piece has a water passage cavity for water passage, the water passage cavity in the mounting piece is connected to an external pipe through a connecting pipe, the filter frame is arranged in the mounting piece, and moves up and down under the action of the reset structure, an opening for the filter frame to extend is opened on the valve body and relative to the mounting structure, and a plug is arranged at the opening.

[0006] In the above-mentioned anti-clogging filter stop valve, the reset structure includes a connecting rod, a sliding part, a pull rod and a reset spring. The mounting member is provided with a mounting groove for installing the reset structure. The sliding part slides in the mounting groove and is sleeved on the connecting rod. One end of the connecting rod extends out of the mounting groove and is connected to the filter frame and drives it to move up and down. The other end of the connecting rod extends out of the mounting member and is connected to the pull rod. Through the setting of the reset structure, the filter frame extending out of the valve body can be reset.

[0007] In the above-mentioned anti-clogging filter stop valve, the upper end of the filter frame is provided with a fixing portion connected to the connecting rod, the fixing portion is provided with a water hole for passing water, the filter frame is provided with a water retaining portion for retaining water, the filter frame is provided with a plurality of filter holes for filtering, and the diameter of the opening is the same as the diameter of the filter frame.

[0008] In the above-mentioned anti-clogging filter stop valve, a sealing member for sealing is arranged at the bottom of the installation groove.

[0009] In the above-mentioned anti-clogging filtering stop valve, the water outlet portion is fixedly connected to the valve body by fixing bolts, and the water outlet portion has two water outlet pipes.

[0010] In the above-mentioned anti-clogging filter stop valve, the plug is threadedly connected to the valve body, an internal thread is arranged inside the plug, and an external thread is arranged on the valve body at the opening.

[0011] Compared with the prior art, the anti-clogging filter stop valve is provided with a mounting structure for filtering and anti-clogging at the water outlet of the valve body. The structure can clean the impurities on the filter net without disassembling the filter net, thereby improving the use efficiency and service life of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0014] Figure 3 It is a partial structural schematic diagram of the present invention.

[0015] Figure 4 The present invention Figure 2 Schematic diagram of the enlarged structure.

[0016] In the figure, 1. valve body; 2. valve core; 3. water inlet; 4. water outlet; 5. water outlet; 6. mounting structure; 7. mounting part; 8. water retaining plate; 9. connecting pipe; 10. filter frame; 11. reset structure; 12. water passage chamber; 13. plug; 14. connecting rod; 15. sliding part; 16. pull rod; 17. reset spring; 18. mounting groove; 19. fixing part; 20. water retaining part. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the anti-clogging filtering stop valve comprises a valve body 1, wherein a valve core 2 is arranged in the valve body 1, wherein a water inlet 3 for water inlet and a water outlet 4 for water outlet are arranged in the valve body 1, a water outlet portion 5 is arranged on the valve body 1 and relative to the water outlet 4, a mounting structure 6 for filtering and anti-clogging is arranged on the valve body 1 and relative to the water outlet 4, the mounting structure 6 is composed of a mounting member 7, a water baffle 8, a connecting pipe 9, a filter frame 10 and a reset structure 11, the mounting member 7 has a water passage cavity 12 for water passage, the water passage cavity 12 in the mounting member 7 is connected to an external pipe through a connecting pipe 9, the filter frame 10 is arranged in the mounting member 7, and moves up and down under the action of the reset structure 11, an opening for the filter frame 10 to extend is opened on the valve body 1 and relative to the mounting structure 6, and a plug 13 is arranged at the opening.

[0019] To further explain, the reset structure 11 includes a connecting rod 14, a sliding portion 15, a pull rod 16 and a reset spring 17. The mounting member 7 is provided with a mounting groove 18 for installing the reset structure 11. The sliding portion 15 slides in the mounting groove 18 and is sleeved on the connecting rod 14. One end of the connecting rod 14 extends out of the mounting groove 18 and is connected to the filter frame 10 and drives it to move up and down. The other end of the connecting rod 14 extends out of the mounting member 7 and is connected to the pull rod 16. Through the setting of the reset structure 11, the filter frame 10 extending out of the valve body 1 can be reset.

[0020] To be more specific, when liquid flows in from the water inlet 3 of the valve body 1, it passes through the interior of the valve body 1, then enters the water cavity 12 of the mounting member 7 from the connecting pipe 9 through the hole on the water retaining portion 20, and is filtered by the filter frame 10 inside the water cavity 12 of the mounting member 7, then flows out from the water outlet 4 and flows into the water outlet portion 5, and is diverted by the two water outlet pipes of the water outlet portion 5.

[0021] To elaborate further, after long-term use, the filter holes on the filter frame 10 may be clogged by various types of impurities. When the filter holes on the filter frame 10 need to be cleaned, first remove the plug 13, and then press the pull rod 16 extending out of the mounting member 7 to move the sliding portion 15 downward, and the return spring 17 is in a compressed state. At the same time, the connecting rod 14 also moves downward and drives the filter frame 10 to move downward until it extends out of the valve body 1. At this time, the water retaining portion 20 on the filter frame 10 closes the water outlet channel of the mounting member 7, and the liquid can only flow out of the filter holes on the filter frame 10 to the outside, and the impurities on the filter holes can be directly flushed out by the water pressure of the liquid.

[0022] To further elaborate, the mounting structure 6 can be used not only for filtering the water outlet 4 , but also for filtering the water inlet 3 .

[0023] In further detail, the upper end of the filter frame 10 is provided with a fixing portion 19 connected to the connecting rod 14, the fixing portion 19 is provided with a water hole for passing water, the filter frame 10 is provided with a water retaining portion 20 for retaining water, and the filter frame 10 is provided with a plurality of filtering holes for filtering, and the diameter of the opening is the same as the diameter of the filter frame 10.

[0024] To be more specific, a sealing member is provided at the bottom of the mounting groove 18 for sealing.

[0025] To be more specific, the water outlet portion 5 is fixedly connected to the valve body 1 by fixing bolts, and the water outlet portion 5 has two water outlet pipes.

[0026] To further elaborate, the plug 13 and the valve body 1 are threadedly connected, the plug 13 is internally provided with an internal thread, and the valve body 1 is provided with an external thread at the opening.

[0027] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0028] Although the terms such as valve body 1, valve core 2, water inlet 3, water outlet 4, water outlet 5, mounting structure 6, mounting member 7, water retaining plate 8, connecting pipe 9, filter frame 10, reset structure 11, water passage chamber 12, plug 13, connecting rod 14, sliding part 15, pull rod 16, reset spring 17, mounting groove 18, fixing part 19, water retaining part 20 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An anti-clogging filter stop valve, comprising a valve body (1), wherein a valve core (2) is arranged in the valve body (1), and wherein a water inlet (3) for water inlet and a water outlet (4) for water outlet are arranged in the valve body (1), characterized in that: A water outlet (5) is provided on the valve body (1) at a position relative to the water outlet (4); a mounting structure (6) for filtering and preventing clogging is provided on the valve body (1) at a position relative to the water outlet (4); the mounting structure (6) is composed of a mounting member (7), a water baffle (8), a connecting pipe (9), a filter frame (10) and a reset structure (11); a water passage cavity (12) for passing water is provided in the mounting member (7); the water passage cavity (12) in the mounting member (7) is connected to an external pipe via a connecting pipe (9); the filter frame (10) is provided in the mounting member (7) and moves up and down under the action of the reset structure (11); an opening for the filter frame (10) to extend out is provided on the valve body (1) at a position relative to the mounting structure (6); a plug (13) is provided at the opening.

2. The anti-clogging filter stop valve according to claim 1, characterized in that: The reset structure (11) comprises a connecting rod (14), a sliding portion (15), a pull rod (16) and a reset spring (17); the mounting member (7) is provided with a mounting groove (18) for mounting the reset structure (11); the sliding portion (15) slides in the mounting groove (18) and is sleeved on the connecting rod (14); one end of the connecting rod (14) extends out of the mounting groove (18) and is connected to the filter frame (10) and drives the filter frame (10) to move up and down; the other end of the connecting rod (14) extends out of the mounting member (7) and is connected to the pull rod (16); and the reset structure (11) is provided so that the filter frame (10) extending out of the valve body (1) can be reset.

3. The anti-clogging filter stop valve according to claim 1, characterized in that: The upper end of the filter frame (10) is provided with a fixing portion (19) connected to the connecting rod (14); the fixing portion (19) is provided with a water hole for passing water; the filter frame (10) is provided with a water retaining portion (20) for retaining water; the filter frame (10) is provided with a plurality of filtering holes for filtering; the diameter of the opening is the same as the diameter of the filter frame (10).

4. The anti-clogging filter stop valve according to claim 2, characterized in that: A sealing member for sealing is provided at the bottom of the installation groove (18).

5. The anti-clogging filter stop valve according to claim 1, characterized in that: The water outlet portion (5) is fixedly connected to the valve body (1) via fixing bolts, and the water outlet portion (5) has two water outlet pipes.

6. The anti-clogging filter stop valve according to claim 1, characterized in that: The plug (13) and the valve body (1) are threadedly connected, an internal thread is provided inside the plug (13), and an external thread is provided on the valve body (1) at the opening.

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