Sampling valve

Abstract

The utility model relates to the technical field of sampling valves, and provides a sampling valve which comprises a sampling bottle, a filtering assembly is arranged at the symmetrical upper end of the sampling bottle and used for screening out undissolved materials, a sealing assembly is arranged outside the filtering assembly and used for sealing the filtering assembly, and a lower valve deck is arranged at the upper end of the filtering assembly and used for sealing the filtering assembly. A valve body is installed at the upper end of the lower valve cover, a handle is installed at one end of the valve body, an upper valve cover is arranged at the upper end of the valve body, the filter assembly comprises a connector in threaded connection with the outer wall of the top end of the sampling bottle, and the top end of the connector is in threaded connection with the outer wall of the bottom end of the upper valve cover. A fixed seat is fixedly connected to the inner wall of the center of the connector, a plurality of first clamping grooves are formed in the upper end and the lower end of the fixed seat, undissolved materials are filtered through the screen, solid materials in samples are avoided, and the sampling accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of sampling valve technology, specifically to sampling valves. Background Technology

[0002] A sampling valve is a device used for sampling in industrial production processes. Its principle is to control the opening and closing of the sampling pipeline through the valve to achieve fluid sampling. Sampling valves are widely used in industries such as chemical, pharmaceutical, and food processing, playing a vital role in monitoring and testing product quality.

[0003] A search revealed an existing patent (publication number: CN220231063U) that discloses a pipeline sampling valve. The pipeline sampling valve of this application includes a valve body. An upper valve cover and a sampling bottle are respectively provided on both sides of the valve body along the medium flow direction. A handwheel is slidably mounted on the end of the upper valve cover away from the valve body in a vertical direction. A valve stem passes through the handwheel and is fixed relative to the handwheel. A medium outflow channel is opened at the bottom of the valve body, and the end of the medium outflow channel communicates with the mouth of the sampling bottle. The end of the valve stem penetrates the valve body and is inserted into the medium outflow channel, sealing the medium outflow channel. In the pipeline sampling valve of this application, the valve stem only moves up and down during the sampling process, without rotating, which avoids friction between the valve core and the valve seat, improves the life of the valve seat, and is easy to use. However, during the dissolution process, the material may be affected by temperature or other factors, resulting in a decrease in solubility and causing some material to precipitate, thus reducing the sampling efficiency of the sampling valve. At the same time, during the sampling process, if the sampling bottle and the sampling connector are not completely connected, gaps may exist between the sampling bottle and the sampling connector, which may cause sample leakage. Utility Model Content

[0004] This invention proposes a sampling valve that solves the problems in related technologies where dissolution due to temperature or other factors leads to decreased solubility and precipitation of some materials, thus reducing the sampling efficiency of the sampling valve. Additionally, during the sampling process, incomplete connection between the sampling bottle and the sampling connector can cause gaps and potential sample leakage.

[0005] The technical solution of this utility model is as follows: a sampling valve, comprising: a sampling bottle, wherein a filter assembly is symmetrically arranged at the upper end of the sampling bottle for screening out undissolved materials, a sealing assembly is arranged outside the filter assembly for sealing the filter assembly, a lower valve cover is arranged at the upper end of the filter assembly, a valve body is installed at the upper end of the lower valve cover, a handle is installed at one end of the valve body, and an upper valve cover is arranged at the upper end of the valve body.

[0006] The filter assembly includes a connector threaded to the outer wall of the top of the sampling bottle. The top of the connector is threaded to the outer wall of the bottom of the upper valve cover. A fixing seat is fixedly connected to the inner wall of the center of the connector. Several first engaging grooves are provided at both the upper and lower ends of the fixing seat. Several first engaging grooves are arranged in a ring at both the upper and lower ends of the fixing seat. Engaging seats are engaged with the inner walls of several first engaging grooves on the upper side. A screen is fixedly connected to the upper end of several engaging seats. Several arc-shaped engaging grooves are provided at the upper end of the screen.

[0007] Preferably, the filter assembly further includes a first arc-shaped positioning block that engages with the inner wall of a plurality of arc-shaped engaging grooves, and the plurality of the first arc-shaped positioning blocks are provided with a first sealing gasket, wherein the first sealing gasket and the first arc-shaped positioning block are an integral structure.

[0008] Preferably, the filter assembly further includes a second arc-shaped positioning block that engages with the inner wall of a plurality of first engaging grooves on the lower side.

[0009] Preferably, the filter assembly further includes a second sealing gasket disposed at the lower end of a plurality of second arc-shaped positioning blocks, wherein the second sealing gasket and the second arc-shaped positioning blocks are an integral structure.

[0010] Preferably, the sealing assembly includes a plurality of positioning screws threaded to the inner wall of the top of the connector, and the other end of each of the positioning screws is threaded to the inner wall of the upper valve cover.

[0011] Preferably, the sealing assembly further includes an elastic sealing sleeve fitted onto the outer wall of the connector, the top end of which is bonded to the lower valve cover.

[0012] Preferably, the sealing assembly further includes a plurality of positioning grooves formed on the outer wall of the bottom end of the connector, and the plurality of positioning grooves are arranged in a ring on the outer wall of the connector.

[0013] Preferably, the sealing assembly further includes positioning pads that engage with the inner walls of several positioning grooves, and each of the positioning pads is an integral part of the elastic sealing sleeve.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] In this invention, a first sealing gasket seals the connection between the lower valve cover and the connector, and a second sealing gasket seals the mouth of the sampling bottle and the connector, increasing the sealing performance of the connector. A sieve filters undissolved material to prevent the presence of solid material in the sample, increasing sampling accuracy. A positioning screw positions the connector to prevent incomplete connection and gaps, further enhancing the connector's sealing performance and preventing sample leakage, thus improving the overall sealing performance of the device. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a front view schematic diagram of the structure proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the left-side structure proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of the filter assembly and sealing assembly proposed in this utility model.

[0020] Figure 4 This is a schematic diagram showing the unfolded structure of the filter assembly and sealing assembly proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the elastic sealing sleeve structure proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the unfolded structure of the filter assembly proposed in this utility model;

[0023] In the diagram: 1. Sampling bottle; 2. Lower valve cover; 3. Valve body; 4. Handle; 5. Upper valve cover; 6. Filter assembly; 601. Connector; 602. Fixing seat; 603. First locking groove; 604. Locking seat; 605. Screen; 606. Arc-shaped locking groove; 607. First arc-shaped positioning block; 608. First sealing gasket; 609. Second arc-shaped positioning block; 610. Second sealing gasket; 7. Sealing assembly; 701. Positioning screw; 702. Elastic sealing sleeve; 703. Positioning pad; 704. Positioning groove. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] This application discloses a sampling valve in its embodiments; please refer to [link / reference]. Figures 1-6The sampling valve includes: a sampling bottle 1, with a filter assembly 6 symmetrically arranged at the upper end of the sampling bottle 1 for screening undissolved materials; a sealing assembly 7 is arranged outside the filter assembly 6 for sealing the filter assembly 6; a lower valve cover 2 is arranged at the upper end of the filter assembly 6; a valve body 3 is installed at the upper end of the lower valve cover 2; a handle 4 is installed at one end of the valve body 3; an upper valve cover 5 is arranged at the upper end of the valve body 3; the filter assembly 6 includes a connector 601 threadedly connected to the outer wall of the top of the sampling bottle 1; the top end of the connector 601 is threadedly connected to the outer wall of the bottom end of the upper valve cover 5; a fixing seat 602 is fixedly connected to the inner wall of the center of the connector 601; and several first engagements are provided at both the upper and lower ends of the fixing seat 602. The filter assembly 6 includes a plurality of first engaging grooves 603 arranged in a ring at the upper and lower ends of the fixed base 602. Engaging seats 604 are engaged with the inner walls of the upper plurality of first engaging grooves 603. A screen 605 is fixedly connected to the upper end of each of the engagement seats 604. The screen 605 is used to filter undissolved materials in the liquid, allowing the undissolved materials to be filtered out. The upper end of the screen 605 has a plurality of arc-shaped engaging grooves 606. The filter assembly 6 also includes first arc-shaped positioning blocks 607 engaged with the inner walls of the arc-shaped engaging grooves 606. First sealing gaskets 608 are provided on the first arc-shaped positioning blocks 607. The first sealing gaskets 608 are used to connect the connector 601 and the lower valve cover 2. To enhance the sealing performance between the bottom of the lower valve cover 2 and the inner wall of the top of the connector 601, the first sealing gasket 608 and the first arc-shaped positioning block 607 are integrally formed. The first arc-shaped positioning block 607 is used to position the first sealing gasket 608 to prevent it from sliding and affecting its sealing performance. The filter assembly 6 also includes a second arc-shaped positioning block 609 that engages with the inner wall of several first engaging grooves 603 on the lower side. The second arc-shaped positioning block 609 is used to position the second sealing gasket 610, thereby increasing its sealing performance. The filter assembly 6 also includes a second sealing gasket 610 disposed at the lower end of several second arc-shaped positioning blocks 609. The second sealing gasket 610 is used to seal the inner wall of the bottom end of the connector 601 with the mouth of the sampling bottle 1, thereby increasing the sealing performance between the mouth of the sampling bottle 1 and the inner wall of the bottom end of the connector 601. The second sealing gasket 610 and the second arc-shaped positioning block 609 are an integral structure. When it is necessary to clean the material on the screen 605, the first arc-shaped positioning block 607 at the lower end of the first sealing gasket 608 is separated from the arc-shaped locking groove 606 at the top of the screen 605, thereby removing the first sealing gasket 608. Then, the locking seat 604 at the lower end of the screen 605 is separated from the first locking groove 603 at the top of the fixed seat 602, thereby removing the screen 605 and cleaning the material filtered out by the screen 605.

[0026] Please see Figures 3-5The sealing assembly 7 includes several positioning screws 701 threaded to the inner wall of the top of the connector 601. The positioning screws 701 are used to position the connection between the connector 601 and the bottom of the upper valve cover 5, ensuring that the upper valve cover 5 and the connector 601 are properly connected, preventing gaps from forming at the connection due to incomplete connection, thereby increasing the sealing performance of the device. The other end of each positioning screw 701 is threaded to the inner wall of the upper valve cover 5. The sealing assembly 7 also includes an elastic sealing sleeve 702 sleeved on the outer wall of the connector 601. The elastic sealing sleeve 702 has good elasticity and is used to seal the connector 601, increasing the sealing performance of the connector 601. For sealing performance, the top of the elastic sealing sleeve 702 is bonded to the lower valve cover 2. The sealing assembly 7 also includes several positioning grooves 704 formed on the outer wall of the bottom end of the connector 601. Positioning is achieved by positioning pads 703 and positioning grooves 704, preventing the elastic sealing sleeve 702 from shifting when it is fitted outside the connector 601, increasing the contact area between the elastic sealing sleeve 702 and the connector 601, and reducing the generation of gaps. Several positioning grooves 704 are arranged in a ring on the outer wall of the connector 601. The sealing assembly 7 also includes positioning pads 703 that are engaged with the inner wall of several positioning grooves 704. Several positioning pads 703 are all integrally formed with the elastic sealing sleeve 702.

[0027] Working principle and usage process: By turning the handle 4, the valve body 3 is opened, allowing the material inside the valve body 3 to flow into the connector 601 through the channel of the upper valve cover 5. The material is then filtered through the screen 605, allowing the filtered material to enter the sampling bottle 1 for collection. After collection, the positioning pad 703 is separated from the positioning groove 704, thereby separating the elastic sealing sleeve 702 from the connector 601. The positioning screw 701 is then removed. By turning the connector 601, the connector 601 is separated from the bottom end of the upper valve cover 5. Then, by turning the sampling bottle 1, the bottle mouth of the sampling bottle 1 is separated from the bottom end of the connector 601. Finally, the sample material inside the sampling bottle 1 is analyzed.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Sampling valve, including: The sampling bottle (1) is characterized in that a filter assembly (6) is symmetrically provided at the upper end of the sampling bottle (1) for screening out undissolved materials, and a sealing assembly (7) is provided on the outside of the filter assembly (6) for sealing the filter assembly (6). A lower valve cover (2) is provided at the upper end of the filter assembly (6), and a valve body (3) is installed at the upper end of the lower valve cover (2). A handle (4) is installed at one end of the valve body (3), and an upper valve cover (5) is provided at the upper end of the valve body (3). The filter assembly (6) includes a connector (601) threaded to the outer wall of the top of the sampling bottle (1). The top of the connector (601) is threaded to the outer wall of the bottom of the upper valve cover (5). A fixing seat (602) is fixedly connected to the inner wall of the center of the connector (601). Several first engagement grooves (603) are provided at both the upper and lower ends of the fixing seat (602). Several first engagement grooves (603) are arranged in a ring at both the upper and lower ends of the fixing seat (602). Engaging seats (604) are engaged and connected to the inner wall of several first engagement grooves (603) on the upper side. A screen (605) is fixedly connected to the upper end of several engaging seats (604). Several arc-shaped engagement grooves (606) are provided at the upper end of the screen (605).

2. The sampling valve according to claim 1, characterized in that, The filter assembly (6) further includes a first arc-shaped positioning block (607) that is engaged with the inner wall of a plurality of arc-shaped engagement grooves (606). Each of the plurality of first arc-shaped positioning blocks (607) is provided with a first sealing gasket (608). The first sealing gasket (608) and the first arc-shaped positioning block (607) are an integral structure.

3. The sampling valve according to claim 1, characterized in that, The filter assembly (6) further includes a second arc-shaped positioning block (609) that engages with the inner wall of several first engaging grooves (603) on the lower side.

4. The sampling valve according to claim 3, characterized in that, The filter assembly (6) also includes a second sealing gasket (610) disposed at the lower end of a plurality of second arc-shaped positioning blocks (609), wherein the second sealing gasket (610) and the second arc-shaped positioning blocks (609) are an integral structure.

5. The sampling valve according to claim 1, characterized in that, The sealing assembly (7) includes several positioning screws (701) threaded to the inner wall of the top of the connector (601), and the other end of each positioning screw (701) is threaded to the inner wall of the upper valve cover (5).

6. The sampling valve according to claim 1, characterized in that, The sealing assembly (7) also includes an elastic sealing sleeve (702) sleeved on the outer wall of the connector (601), the top end of the elastic sealing sleeve (702) being bonded to the lower valve cover (2).

7. The sampling valve according to claim 6, characterized in that, The sealing assembly (7) also includes a plurality of positioning grooves (704) formed on the outer wall of the bottom end of the connector (601), and the plurality of positioning grooves (704) are arranged in a ring on the outer wall of the connector (601).

8. The sampling valve according to claim 7, characterized in that, The sealing assembly (7) also includes positioning pads (703) that engage with the inner walls of several positioning grooves (704), and the several positioning pads (703) are all integrally formed with the elastic sealing sleeve (702).

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