Elastic compression type anti-locking flashboard structure

Abstract

The utility model discloses an elastic compression type anti-locking flashboard structure which comprises a valve body, a flat flashboard used for sealing the liquid inlet and outlet end of the valve body and a flashboard seat used for supporting the flat flashboard are arranged in the valve body, and the flat flashboard is located above the flashboard seat. The bottom end of the flashboard seat is provided with a compression rebound assembly used for compressing and rebounding the flashboard seat after acting force is applied to the flashboard seat in a certain direction, a sealing valve seat ring is arranged in the valve body and located at a port of one end of the liquid inlet and outlet end of the valve body, and the outer wall of the flashboard seat is wrapped with a second sealing rubber sleeve. The outer wall of the flat gate plate is coated with a first sealing rubber sleeve. According to the gate valve, the situation that the flat gate plate and the gate plate seat are stuck is effectively avoided, the situation that impurities are deposited on the gate plate seat is also effectively avoided, and the impurities can be automatically discharged along with flowing of liquid in the valve body.

Description

Technical Field

[0001] This utility model relates to the field of flat gate valve technology, specifically to an elastic compression type anti-jamming gate structure. Background Technology

[0002] A flat gate valve is a type of valve that uses a gate for opening and closing, and is widely used in various fluid pipeline systems. Its working principle is that when the gate is fully open, fluid can pass through smoothly; while when the gate is fully closed, the fluid is completely blocked.

[0003] A search revealed that patent publication number CN222142015U discloses a combined anti-jamming flat gate valve, comprising a gate valve body, a cleaning and anti-jamming base, a flat gate, a valve cover and its transmission mechanism, and a sealing valve seat. The cleaning and anti-jamming base is fixedly installed below the gate valve body. A flat gate is disposed inside the gate valve body, and the flat gate is fixedly connected to the valve cover and its transmission mechanism. The valve cover and its transmission mechanism are fixedly installed on the gate valve body. A sealing valve seat is fixedly installed inside the gate valve body, located on both sides of the flat gate. The internal spring-loaded telescopic structure of this invention provides a certain elasticity, helping the flat gate better fit the cleaning gate seat, enhancing its sealing performance. Simultaneously, it provides some assistance for resetting and cleaning. Its spiral-shaped surface cleaning plates can guide the medium to form a rotating flow, helping to peel away deposits or dirt from the gate seat, the valve plate surface, and the inner surface of the gate's recessed groove.

[0004] In actual use, when the liquid flows through the inlet and outlet of the valve body, impurities will still fall into the top of the cleaning gate seat and settle. When there are certain impurities in the cleaning gate seat, it will not only affect the normal opening and closing operation of the valve, but also cause wear on the gate seat, greatly reduce the sealing performance, and lead to valve leakage and other malfunctions. Therefore, an elastic compression anti-jamming gate structure is designed. Utility Model Content

[0005] In view of the defects or deficiencies of the flat gate valve, the purpose of this utility model is to provide an elastic compression anti-jamming gate structure, which not only effectively avoids jamming between the flat gate and the gate seat, but also effectively prevents impurities from accumulating in the gate seat. The impurities can be automatically discharged with the flow of liquid in the valve body.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides an elastic compression anti-jamming gate structure, including a valve body. The valve body is provided with a flat gate for sealing the liquid inlet and outlet ends of the valve body and a gate seat for supporting the flat gate. The flat gate is located above the gate seat. The bottom end of the gate seat is provided with a compression and rebound assembly for compressing and rebounding the gate seat after it is subjected to a force in a certain direction. The valve body is provided with a sealing valve seat ring, which is located at the port of the liquid inlet and outlet ends of the valve body.

[0008] The outer wall of the gate seat is covered with a second sealing rubber sleeve, and the outer wall of the flat gate is covered with a first sealing rubber sleeve.

[0009] Preferably, the compression rebound assembly is provided with a second connecting post, one end of the second connecting post is installed on both sides of the bottom inner side of the lower valve cover, and the lower valve cover is installed on one end of the valve body. The other end of the second connecting post is provided with an installation groove, and a rebound compression plate is provided inside the installation groove. The outer circumferential wall of the rebound compression plate and the inner circumferential wall of the installation groove are in clearance fit.

[0010] Preferably, one side surface of the spring compression plate is connected to the end wall of one end of the mounting groove by a spring, and a first connecting post is installed on the other side surface of the spring compression plate, with the other end of the first connecting post installed at the bottom of the gate seat.

[0011] Preferably, a first limiting block is provided on both sides of the outer circumferential wall of the rebound compression plate, and the other end of the first limiting block is installed in the first limiting groove. The outer wall of the first limiting block and the groove wall of the first limiting groove are in clearance fit, and the first limiting groove is opened on both sides of the inner circumferential wall of the mounting groove.

[0012] Preferably, a second limiting block is provided on both outer walls of the gate seat, and the other end of the second limiting block is installed in the second limiting groove. The outer wall of the second limiting block and the groove wall of the second limiting groove are in clearance fit, and the second limiting groove is opened on both sides of the inner wall of the valve body.

[0013] Preferably, an upper valve cover and a lower valve cover are respectively installed at both ends of the valve body. A transmission assembly is provided on the upper valve cover, a valve stem is provided on the transmission assembly, and a flat gate is provided on one end of the valve stem.

[0014] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0015] In this utility model, through a series of coordinated structural arrangements, the compression and rebound assembly enables the gate seat to be compressed or rebounded in a certain direction. The gate seat design that enables compression and rebound can avoid the problem of the flat gate jamming caused by hard friction and jamming that is prone to occur in conventional gate structures during the opening and closing of the flat gate, thereby improving the smoothness and reliability of valve body operation.

[0016] In this utility model, through a series of coordinated structural arrangements, when the gate seat is separated from the flat gate, the gate seat will move to its initial position under the action of the compression rebound assembly. When the gate seat moves to its initial position, the gate seat and the sealing valve seat ring are radially aligned. When liquid flows through the inlet and outlet of the valve body, the power of the liquid flow allows impurities to flow away smoothly with the liquid. The impurities can be automatically discharged with the liquid flow in the valve body and will not accumulate on the gate seat, thereby effectively preventing the deposition of impurities on the gate seat. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the entire utility model.

[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure with the flat gate removed.

[0021] Figure 4 This is a schematic diagram of the gate seat of this utility model.

[0022] Figure 5 This is a structural schematic diagram of the flat gate of this utility model.

[0023] Figure 6 This is a cross-sectional view of the compression and rebound assembly of this utility model.

[0024] In the picture:

[0025] 100. Transmission components;

[0026] 200. Upper valve cover;

[0027] 300. Valve body;

[0028] 400. Lower valve cover;

[0029] 500. Flat gate; 510. First sealing rubber sleeve;

[0030] 600. Gate seat; 610. Second sealing rubber sleeve;

[0031] 700, Compression and rebound assembly; 710, First connecting post; 720, Second connecting post; 730, Spring; 740, Rebound compression plate;

[0032] 800, Sealing valve seat ring. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] like Figure 1-6 As shown, an elastic compression anti-jamming gate structure includes a valve body 300. Inside the valve body 300, there is a flat gate 500 for sealing the liquid inlet and outlet ends of the valve body 300 and a gate seat 600 for supporting the flat gate 500. The flat gate 500 is located above the gate seat 600. At the bottom end of the gate seat 600, there is a compression and rebound assembly 700 for compressing and rebounding the gate seat 600 after it is subjected to a force in a certain direction. Inside the valve body 300, there is a sealing valve seat ring 800, which is located at the port of the liquid inlet and outlet ends of the valve body 300.

[0037] The outer wall of the gate seat 600 is covered with a second sealing rubber sleeve 610, and the outer wall of the flat gate 500 is covered with a first sealing rubber sleeve 510. The arrangement of the first sealing rubber sleeve 510 and the second sealing rubber sleeve 610 ensures that the two fit tightly together when the flat gate 500 presses against the gate seat 600, thus ensuring that the valve body 300 is in a sealed state.

[0038] The compression rebound assembly 700 is provided with a second connecting post 720. One end of the second connecting post 720 is installed on both sides of the bottom inner side of the lower valve cover 400, and the lower valve cover 400 is installed on one end of the valve body 300. The other end of the second connecting post 720 is provided with a mounting groove. A rebound compression plate 740 is provided inside the mounting groove. The outer circumferential wall of the rebound compression plate 740 and the inner circumferential wall of the mounting groove are in clearance fit. Because the outer circumferential wall of the rebound compression plate 740 and the inner circumferential wall of the mounting groove are in clearance fit, the movement of the rebound compression plate 740 can be limited and guided.

[0039] One side surface of the spring compression plate 740 is connected to the end wall of one end of the mounting groove via a spring 730. The other side surface of the spring compression plate 740 is equipped with a first connecting post 710, and the other end of the first connecting post 710 is installed at the bottom of the gate seat 600.

[0040] The spring compression plate 740 has a first limiting block on both sides of its circumferential outer wall. The other end of the first limiting block is installed in the first limiting groove. The outer wall of the first limiting block and the groove wall of the first limiting groove are in clearance fit. The first limiting groove is opened on both sides of the circumferential inner wall of the mounting groove. Because the outer wall of the first limiting block and the groove wall of the first limiting groove are in clearance fit, the movement of the spring compression plate 740 can be further limited and guided.

[0041] A second limiting block is provided on both outer walls of the gate seat 600. The other end of the second limiting block is installed in the second limiting groove. The outer wall of the second limiting block and the groove wall of the second limiting groove are in clearance fit. The second limiting groove is opened on both sides of the inner wall of the valve body 300. Because the outer wall of the second limiting block and the groove wall of the second limiting groove are in clearance fit, the movement of the gate seat 600 can be limited and guided, thus preventing the gate seat 600 from deviating during the rebound movement and causing the gate seat 600 to jam.

[0042] The valve body 300 has an upper valve cover 200 and a lower valve cover 400 installed at both ends respectively. The upper valve cover 200 is provided with a transmission assembly 100, and the transmission assembly 100 is provided with a valve stem. The flat gate 500 is provided on one end of the valve stem.

[0043] Working Principle: During use, when the operator applies a certain force to the gate seat 600 via the transmission component 100, the gate seat 600 transmits the force to the compression and rebound component 700. The compression and rebound component 700 compresses the gate seat 600. When the operator releases the force applied by the gate 500 to the gate seat 600, the gate seat 600 moves back to its initial position under the rebound action of the compression and rebound component 700. Thus, the compression and rebound component 700 allows the gate seat 600 to compress or rebound in a certain direction. The gate seat 600 design, which allows for compression and rebound, avoids the common problems that occur with conventional gate structures during the opening and closing of the gate 500. The problem of jamming of the flat gate 500 caused by hard friction and sticking is solved by improving the smoothness and reliability of valve body 300 operation. When the gate seat 600 is separated from the flat gate 500, the gate seat 600 will move to the initial position under the action of the compression rebound component 700. When the gate seat 600 moves to the initial position, the gate seat 600 is radially flush with the sealing valve seat ring 800. When liquid flows through the inlet and outlet of the valve body 300, the power of the liquid flow is used to make impurities flow away smoothly with the liquid. The impurities can be automatically discharged with the liquid flow in the valve body 300 and will not accumulate on the gate seat 600, thus effectively avoiding the situation of impurities depositing on the gate seat 600.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the invention. For those skilled in the art, various modifications and variations can be made to this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A resilient clamping anti-jamming gate structure, comprising a valve body (300), characterized in that: The valve body (300) is provided with a flat gate (500) for sealing the liquid inlet and outlet ends of the valve body (300) and a gate seat (600) for supporting the flat gate (500). The flat gate (500) is located above the gate seat (600). The bottom end of the gate seat (600) is provided with a compression and rebound assembly (700) for compressing and rebounding the gate seat (600) after it is subjected to a force in a certain direction. The valve body (300) is provided with a sealing valve seat ring (800) inside, and the sealing valve seat ring (800) is located at the port of the liquid inlet and outlet ends of the valve body (300). The outer wall of the gate seat (600) is covered with a second sealing rubber sleeve (610), and the outer wall of the flat gate (500) is covered with a first sealing rubber sleeve (510).

2. The elastic compression anti-jamming gate structure according to claim 1, characterized in that: The compression rebound assembly (700) is provided with a second connecting post (720). One end of the second connecting post (720) is installed on both sides of the bottom inner side of the lower valve cover (400), and the lower valve cover (400) is installed on one end of the valve body (300). The other end of the second connecting post (720) is provided with an installation groove. The installation groove is provided with a rebound compression plate (740), and the outer circumferential wall of the rebound compression plate (740) and the inner circumferential wall of the installation groove are in clearance fit.

3. The elastic compression anti-jamming gate structure according to claim 2, characterized in that: One side surface of the spring compression plate (740) is connected to the end wall of one end of the mounting groove by a spring (730), and the other side surface of the spring compression plate (740) is equipped with a first connecting post (710), and the other end of the first connecting post (710) is installed at the bottom of the gate seat (600).

4. The elastic compression anti-jamming gate structure according to claim 3, characterized in that: The rebound compression plate (740) has a first limiting block on both sides of its circumferential outer wall. The other end of the first limiting block is installed in the first limiting groove. The outer wall of the first limiting block and the groove wall of the first limiting groove are in clearance fit. The first limiting groove is opened on both sides of the circumferential inner wall of the mounting groove.

5. The elastic compression anti-jamming gate structure according to claim 1, characterized in that: The gate seat (600) is provided with a second limiting block on both outer walls. The other end of the second limiting block is installed in the second limiting groove. The outer wall of the second limiting block and the groove wall of the second limiting groove are in clearance fit. The second limiting groove is opened on both sides of the inner wall of the valve body (300).

6. The elastic compression anti-jamming gate structure according to claim 1, characterized in that: The valve body (300) is equipped with an upper valve cover (200) and a lower valve cover (400) at its two ends respectively. The upper valve cover (200) is provided with a transmission assembly (100), and the transmission assembly (100) is provided with a valve stem. The flat gate (500) is provided on one end of the valve stem.

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