Fixed ball valve of multi-sealing structure

Abstract

The utility model discloses a fixed ball valve of a multi-sealing structure, and relates to the technical field of valves. The fixed ball valve of the multi-sealing structure comprises a ball valve body, a filter seat is arranged on the ball valve body, a clamping seat is arranged in the filter seat, a filter screen plate is movably clamped in the clamping seat, a multi-stage sealing block is movably clamped at the bottom of the filter seat, the multi-stage sealing block is used for clamping and limiting the filter screen plate, and an inserting block is arranged on the multi-stage sealing block. Locking mechanisms used for locking and limiting the inserting blocks are arranged on the two sides of the filtering base. According to the fixed ball valve of the multi-sealing structure, the filter screen plate is used for providing a filtering function for an internal channel of the ball valve body, the ball body position of the ball valve body is protected, abrasion is reduced, the service life sealing capacity of the ball valve body is improved, the filter screen plate is clamped and limited conveniently through the multi-stage sealing blocks, meanwhile, multi-stage sealing is formed, and the sealing effect is improved. And good sealing performance of the connection position of the filter screen plate and the filter seat is ensured.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a fixed ball valve with a multi-seal structure. Background Technology

[0002] A fixed ball valve controls its opening and closing by rotating a ball. The ball is fixed within the valve and does not move under pressure; sealing is achieved through the movement of the valve seat. When the ball valve rotates 90 degrees, both the inlet and outlet surfaces of the pipeline are spherical, thus cutting off the fluid flow; conversely, when the ball valve rotates 90 degrees back, both the inlet and outlet surfaces of the pipeline are orifice surfaces, allowing fluid to pass through the valve.

[0003] Existing fixed ball valves are typically cumbersome to install or fix. If impurities are present in the fluid inside the pipeline, it can easily increase ball wear and reduce lifespan. If a filter screen is added inside the valve body, the existing filter screen disassembly and assembly structure usually uses a separate rubber ring seal to seal the interface. This sealing method is prone to poor sealing due to the high pressure inside the fixed ball valve, resulting in water leakage at the filter screen disassembly and assembly point, which cannot meet the requirements. To address the shortcomings of the existing technology, this utility model provides a fixed ball valve with a multi-sealing structure to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixed ball valve with a multi-sealing structure. The design of the filter seat and retainer facilitates support for the filter screen, which in turn provides filtration for the internal channels of the ball valve body, protects the ball position, reduces wear, and extends the lifespan and sealing capability of the ball valve body. Multi-stage sealing blocks facilitate the clamping and limiting of the filter screen, forming a multi-stage seal that ensures good sealing at the connection between the filter screen and the filter seat, meeting usage requirements.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a fixed ball valve with a multi-seal structure, including a ball valve body, a filter seat on the ball valve body, a retaining seat inside the filter seat, and a filter screen plate movably engaged inside the retaining seat;

[0006] The bottom of the filter base is movably engaged with a multi-stage sealing block, which is used to clamp and limit the position of the filter screen.

[0007] The multi-stage sealing block is provided with an insert block, and the filter seat is provided with a locking mechanism on both sides for locking and limiting the insert block.

[0008] Preferably, the locking mechanism includes a sleeve fixedly connected to the filter base and a locking rod movably engaged inside the sleeve;

[0009] The plug is movably clamped in the sleeve, the plug is provided with a plug hole, and the locking rod is movably inserted in the plug hole.

[0010] Preferably, the inside of the sleeve is slidably connected with a sliding block for supporting the locking rod, and the two groups of sliding blocks are fixedly connected with springs.

[0011] Preferably, the sliding block is provided with a push handle.

[0012] Preferably, the inside of the filter seat is provided with a primary sealing groove and a multi-stage sealing groove, the multi-stage sealing block is provided with a primary sealing pad and a multi-stage sealing pad at the multi-stage platform position, the primary sealing pad is movably clamped in the primary sealing groove, and the multi-stage sealing pad is movably clamped in the multi-stage sealing groove.

[0013] Preferably, the two ends of the ball valve body are provided with flanges.

[0014] The utility model discloses a fixed ball valve of multi -sealed structure has the beneficial effect as follows:

[0015] The fixed ball valve of multi -sealed structure, through the design of filter seat and clamping seat, conveniently realize the support of filter screen plate, utilize filter screen plate to provide the filter function to ball valve body internal passage, provide protection to the ball body position of ball valve body, reduce abrasion, improve the life sealing capacity of ball valve body, through multi -stage sealing block, conveniently realize the clamping location of filter screen plate, form multi -stage sealing simultaneously, guarantee the sealing property of filter screen plate and filter seat connecting position is good, satisfy the use demand. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0017] Fig. 1 It is the first view angle of the overall structure schematic diagram of the utility model;

[0018] Fig. 2 It is the second view angle of the overall structure schematic diagram of the utility model;

[0019] Fig. 3 It is the sectional view of the utility model;

[0020] Fig. 4 It is the disassembly schematic diagram of the multi -stage sealing block of the utility model;

[0021] Fig. 5The utility model discloses a disassembling schematic view of filter screen plate.

[0022] Fig. 6 The utility model discloses a structure schematic view of locking mechanism.

[0023] In the drawing: 1, ball valve main body;11, flange plate;2, filter seat;21, primary sealing groove;22, multistage sealing groove;3, clamping seat;4, filter screen plate;5, multistage sealing block;51, plug;52, insertion hole;53, primary sealing pad;54, multistage sealing pad;6, locking mechanism;61, sleeve seat;62, sliding block;621, push handle;63, locking rod;64, spring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor are within the protection scope of the utility model.

[0025] The embodiment of the application provides a fixed ball valve with a multi-sealing structure, which solves the problem that the existing fixed ball valve usually adopts a single leather seal mode to seal the interface position, and the sealing mode can not meet the demand due to the large pressure in the fixed ball valve, resulting in poor sealing performance and water leakage at the filter screen dismounting position.

[0026] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings and specific embodiments in the description.

[0027] Embodiment 1:

[0028] The utility model embodiment discloses a fixed ball valve with a multi-sealing structure, according to the attached Figs. 1-6 As shown in the figure, the ball valve main body 1 is provided with a flange plate 11 at both ends, and the flange plate 11 is arranged to facilitate the connection of the ball valve main body 1 with the pipeline.

[0029] The ball valve main body 1 is provided with a filter seat 2, and the filter seat 2 is internally provided with a clamping seat 3, and the clamping seat 3 is movably clamped with a filter screen plate 4;The device is designed through the filter seat 2 and the clamping seat 3, which is convenient for providing support to the filter screen plate 4, and the filter screen plate 4 is used to provide filtering function to the internal passage of the ball valve main body 1, and the ball body position of the ball valve main body 1 is protected, the wear is reduced, and the service life and sealing capacity of the ball valve main body 1 are improved;

[0030] The bottom of the filter seat 2 movably clamps a multi-stage sealing block 5, which is used for clamping and limiting the filter screen plate 4; the device can clamp and limit the filter screen plate 4 through the multi-stage sealing block 5, and at the same time, multi-stage sealing is formed, so that the sealing performance of the connection position of the filter screen plate 4 and the filter seat 2 is good.

[0031] The multi-stage sealing block 5 is provided with an insertion block 51, and the two sides of the filter seat 2 are provided with a locking mechanism 6 for locking and limiting the insertion block 51; through the design of the locking mechanism 6, the multi-stage sealing block 5 is convenient to install and position.

[0032] The locking mechanism 6 comprises a sleeve 61 fixedly connected to the filter seat 2 and a locking rod 63 movably clamped in the sleeve 61, the insertion block 51 is movably clamped in the sleeve 61, the insertion block 51 is provided with an insertion hole 52, the locking rod 63 is movably inserted into the insertion hole 52, the sleeve 61 is slidably connected with a sliding block 62 for supporting the locking rod 63, and the two groups of sliding blocks 62 are fixedly connected with a spring 64.

[0033] The locking mechanism 6 is compact in structure and convenient to control, so that the multi-stage sealing block 5 is convenient to install; when the multi-stage sealing block 5 is installed, first, the multi-stage sealing block 5 is clamped in the inside of the filter seat 2, and at the same time, the sliding block 62 and the locking rod 63 are pulled, so that the sliding block 62 presses the spring 64, the insertion block 51 is inserted into the inside of the sleeve 61 during the clamping process, after complete insertion, the sliding block 62 is released, the spring 64 is reset and pushes the sliding block 62 and the locking rod 63 to move, so that the locking rod 63 is inserted into the inside of the insertion hole 52, and then the position of the multi-stage sealing block 5 is locked.

[0034] When the multi-stage sealing block 5 is disassembled, the above installation process is reversed, and after the multi-stage sealing block 5 is disassembled, the filter screen plate 4 can be conveniently installed or removed, so that the cleaning or maintenance and replacement of the filter screen plate 4 are convenient.

[0035] The sliding block 62 is provided with a push handle 621, and the device is convenient to control when the sliding block 62 and the locking rod 63 are pushed or pulled through the design of the push handle 621.

[0036] Embodiment 2

[0037] The utility model discloses a fixed ball valve of multi -sealed structure, according to the attached Figs. 1-6 As shown, comprising ball valve main body 1, the both ends of ball valve main body 1 are equipped with flange plate 11, and the flange plate 11 is arranged to facilitate the connection of the ball valve main body 1 with the pipeline.

[0038] The filter seat 2 is arranged on the ball valve body 1, the inside of the filter seat 2 is provided with a clamping seat 3, and the clamping seat 3 is movably clamped with a filter screen plate 4; the device is convenient for providing support for the filter screen plate 4 through the design of the filter seat 2 and the clamping seat 3, and the filter screen plate 4 is used to provide a filtering function for the internal passage of the ball valve body 1, to protect the ball position of the ball valve body 1, reduce wear and tear, and improve the service life sealing capacity of the ball valve body 1;

[0039] The bottom of the filter seat 2 is movably clamped with a multi-stage sealing block 5, and the multi-stage sealing block 5 is used to clamp and limit the filter screen plate 4; the device is convenient for clamping and limiting the filter screen plate 4 through the multi-stage sealing block 5, and forms multi-stage sealing, to ensure good sealing performance at the connection position of the filter screen plate 4 and the filter seat 2;

[0040] The multi-stage sealing block 5 is provided with an insertion block 51, and the two sides of the filter seat 2 are provided with a locking mechanism 6 for locking and limiting the insertion block 51, and the device is convenient for installation and positioning of the multi-stage sealing block 5 through the design of the locking mechanism 6.

[0041] The inside of the filter seat 2 is respectively provided with a primary sealing groove 21 and a multi-stage sealing groove 22, the multi-stage sealing block 5 is respectively provided with a primary sealing pad 53 and a multi-stage sealing pad 54 at the multi-stage prism position, the primary sealing pad 53 is movably clamped in the primary sealing groove 21, and the multi-stage sealing pad 54 is movably clamped in the multi-stage sealing groove 22, and the device is convenient for clamping and limiting the filter screen plate 4 through the design of the primary sealing groove 21, the multi-stage sealing groove 22, the primary sealing pad 53 and the multi-stage sealing pad 54, to ensure good clamping effect of the multi-stage sealing block 5 on the filter screen plate 4 and good sealing performance.

[0042] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0043] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fixed ball valve of multiple seal construction, characterized in that, Include: Ball valve body (1); Filter seat (2) is arranged on the ball valve body (1), the inside of the filter seat (2) is provided with a cartridge (3); Filter screen plate (4) is movably clamped in the cartridge (3), the filter screen plate (4) is used for filtering fluid in the ball valve body (1); Multi-stage sealing block (5) is movably clamped at the bottom of the filter seat (2), the multi-stage sealing block (5) is used for clamping and limiting the filter screen plate (4), the multi-stage sealing block (5) is provided with an insertion block (51); Locking mechanism (6) is arranged on both sides of the filter seat (2), the locking mechanism (6) is used for locking and limiting the insertion block (51).

2. A fixed ball valve of multiple seal construction according to claim 1, characterized in that The locking mechanism (6) comprises: The sleeve (61) is fixedly connected to the filter seat (2), and the sleeve (61) is used for clamping and limiting the insertion block (51); Locking rod (63) is movably clamped in the sleeve (61), the insertion block (51) is provided with a plug hole (52), and the locking rod (63) is movably inserted into the plug hole (52).

3. A fixed ball valve of multiple seal construction according to claim 2, characterized in that The inside of the sleeve (61) is slidably connected with a sliding block (62) for supporting the locking rod (63), and two groups of the sliding block (62) are fixedly connected with a spring (64).

4. A fixed ball valve of multiple seal construction according to claim 3, wherein The sliding block (62) is provided with a push handle (621).

5. A fixed ball valve of multiple seal construction according to claim 1, wherein The inside of the filter seat (2) is respectively provided with a primary sealing groove (21) and a multi-stage sealing groove (22), the multi-stage sealing block (5) is respectively provided with a primary sealing pad (53) and a multi-stage sealing pad (54) on the multi-stage prism position, the primary sealing pad (53) is movably clamped in the primary sealing groove (21), and the multi-stage sealing pad (54) is movably clamped in the multi-stage sealing groove (22).

6. A fixed ball valve of multiple seal construction according to claim 1, wherein, The both ends of the ball valve body (1) are provided with flange plates (11).

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