A sampling device

Abstract

The utility model relates to a kind of sampling devices, comprising: sampling tube, with main pipe, the control tube cavity with straight line is set in the main pipe, and the main pipe one end forms sampling port and side surface is formed with sample outlet;Sampling tube core, with the control tube cavity of main pipe adaptation and set in control tube cavity, wherein the middle part is equipped with opening located the sampling groove of outer circumferential surface, relatively main pipe movable with sampling position and sample outlet position;When sampling tube core is at sampling position, the part of sampling tube core equipped with sampling groove is located outside sampling port and the sampling groove of sampling tube core is set upwards;When sampling tube core is at sample outlet position, the part of sampling tube core equipped with sampling groove corresponds with the position of sample outlet and the sampling groove of sampling tube core is set to sample outlet direction;Drive mechanism.The utility model can be used for the solid on-line sampling of filtration washing equipment or filtration washing drying setting by the movement of sampling tube core in main pipe to realize the small sampling of sampling groove, sample sending, and can be sampled in line for multiple times.

Description

Technical Field

[0001] This utility model relates to a sampling device. Background Technology

[0002] Filtration, washing and drying equipment is a device that completes the processes of filtration, washing and drying of materials inside a tank to prevent the materials from being contaminated by foreign objects or microorganisms.

[0003] Solid sampling and testing are required during the production process of filter washing machines or filter washing and drying machines. For example, the applicant's prior published patent CN201820726888.0 describes a sampling structure where a sampling port is set on a container, with a sampling tube attached to the port and a valve on the tube. When sampling is needed, the valve is opened, allowing a small amount of material to flow out for sampling. However, this sampling structure requires the operation to be stopped before sampling can begin; otherwise, material will be uncontrollably discharged from the sampling port into the sampling tube, impacting production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a sampling device.

[0005] The technical solution adopted by this utility model is as follows: A sampling device, comprising: A sampling tube has a main tube, which has a control cavity arranged in a straight line along a horizontal or inclined direction. One end of the main tube forms a sampling port connected to the control cavity, and the side of the main tube forms a sampling outlet connected to the control cavity. The sampling core is adapted to the control cavity of the main tube and is set inside the control cavity. It has a sampling groove with an opening on the outer circumferential surface in the middle and is movable relative to the main tube, having a sampling position and a sampling position. When the sampling core is at the sampling position, the part of the sampling core with the sampling groove is located outside the sampling port and the sampling groove of the sampling core is set upwards. When the sampling core is at the sampling position, the part of the sampling core with the sampling groove corresponds to the position of the sampling port and the sampling groove of the sampling core is set towards the sampling port. The drive mechanism is used to drive the sampling die to move relative to the main tube between the sampling position and the sample dispensing position.

[0006] The driving mechanism is a driving handle that is fixedly connected to the sampling tube core. The sampling tube is provided with an operating groove for the driving handle to pass through and move.

[0007] Preferably, the operating groove is limited to the drive handle, allowing the drive handle to move along the operating groove between the sampling position and the sample dispensing position.

[0008] Preferably, the control tube is arranged horizontally, and the sample outlet is located on the lower side of the main tube; the sampling tube core has a middle position, and when the sampling tube core is in the middle position, the part of the sampling tube core with the sampling groove corresponds to the position of the sample outlet and the sampling groove of the sampling tube core is arranged upward. The operating groove includes a first limiting slide groove and a second limiting slide groove; When the drive handle is engaged with the first limiting slide groove for limiting and sliding, the drive handle slides linearly between the sampling position and the intermediate position. When the drive handle is engaged with the second limiting slide groove, it causes the drive handle to rotate circumferentially between the middle position and the sample dispensing position.

[0009] Preferably, a sealing structure is provided between the inner wall of the main tube and the outer wall of the sampling tube core, and the sealing structure is located between the sample outlet and the operating groove.

[0010] Preferably, the main pipe includes a first pipe fitting, a second pipe fitting, and a third pipe fitting that are fixedly connected in sequence along the axial direction. The sampling port and the sample outlet are respectively located at one end and the lower side of the first pipe fitting. The operating groove is located on the third pipe fitting. The two ends of the inner wall of the second pipe fitting are provided with grooves for forming a sealing groove with the first pipe fitting and the third pipe fitting. A sealing element that seals with the outer wall of the sampling tube core is embedded in the sealing groove.

[0011] Preferably, the first pipe fitting, the second pipe fitting, and the third pipe fitting are detachably and fixedly connected.

[0012] Preferably, it also includes a sampling valve, which has a material inlet, a material outlet, and a control valve chamber connected between the material inlet and the material outlet. The material inlet, the material outlet, and the sampling port are coaxially arranged, and the material outlet is connected to the sampling port. When the sampling core is at the sampling position, the portion of the sampling core with the sampling groove is located outside the material inlet.

[0013] Preferably, the outer periphery of the end of the main pipe with the sampling port is provided with a connecting flange, and the connecting flange is provided with a first connecting part for connecting with the sampling valve flange and a second connecting part for connecting with the container flange.

[0014] Preferably, the sampling tube includes a sample outlet connecting to the sample outlet.

[0015] The beneficial effects of this invention are as follows: This invention achieves small-volume sampling and delivery of samples by moving the sampling core within the main pipe, and allows for multiple online sampling. This invention can be used for online solid sampling in filtration and washing equipment or filtration, washing, and drying systems. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention, showing the sampling location; Figure 2 This is a schematic diagram of the structure of one embodiment of the present invention, showing the sample output position; Figure 3 This is a structural schematic diagram of one embodiment of the present invention, showing the middle position in the diagram; Figure 4 This is a schematic diagram of the sampling tube portion according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the third tube body structure in one embodiment of the present invention; Figure 6 for Figure 3 Enlarged diagram of part A in the middle; Figure 7 for Figure 3 Enlarged diagram of section B; Figure 8 for Figure 3 Enlarged diagram of section C; In the diagram, the main pipe is 100, the first fitting is 110, the sampling port is 111, the sample outlet is 112, the connecting flange is 113, the first connection part is 1131, the second connection part is 1132, the second fitting is 120, the third fitting is 130, the operating groove is 131, the first limiting groove is 1311, the second limiting groove is 1312, the seal is 140, the sampling tube core is 200, the sampling groove is 210, the drive handle is 300, the sampling valve is 400, the sample outlet pipe is 500, and the container is 600. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0019] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0020] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0021] like Figure 1 , Figure 2 As shown, this utility model provides a sampling device, including a sampling tube, a sampling tube core 200, a sampling valve 400, and a driving mechanism.

[0022] Among them, such as Figure 3 As shown, the sampling tube includes a main tube 100 and a sample outlet tube 500. The main tube 100 has a control cavity arranged in a straight line along the horizontal or inclined direction. One end of the main tube 100 forms a sampling port 111 connected to the control cavity, and the side of the main tube 100 forms a sample outlet 112 connected to the control cavity. The sample outlet tube 500 is connected to the sample outlet 112.

[0023] The sampling core 200 is adapted to and disposed within the control cavity of the main tube 100, and has a sampling groove 210 with its opening located on the outer circumferential surface in its middle. The sampling core 200 is movable relative to the main tube 100, and has the following characteristics: Figure 1 The sampling locations shown and as follows Figure 2 As shown in the diagram, the driving mechanism is used to move the sampling die 200 between the sampling position and the sampling position. When the sampling die 200 is at the sampling position, as... Figure 1 As shown, the portion of the sampling tube 200 with the sampling groove 210 is located outside the sampling port 111, and the sampling groove 210 of the sampling tube 200 is arranged facing upwards. Specifically, the sampling tube 200 extends into the container 600 so that the portion of the sampling tube 200 with the sampling groove 210 is located in the container 600, and receives a small amount of solid material in the container 600 through the upward-facing sampling groove 210; such as Figure 2 As shown, when the sampling core 200 is at the sampling position, the portion of the sampling core 200 with the sampling groove 210 corresponds to the position of the sampling port 112, and the sampling groove 210 of the sampling core 200 is arranged towards the sampling port 112. The material in the sampling groove 210 can leave the sampling tube through the sampling connector 500 connected to the sampling port 112. In this way, the sampling core 200 can be driven to take multiple samples online.

[0024] Specifically, it is preferable to position the discharge port 112 on the lower side of the main pipe 100 so that the material can be discharged by gravity. If it is facing the side or the top, the material needs to be removed by external force.

[0025] The sampling valve 400 is connected between the main pipe 100 and the container 600 to control the opening and closing between the main pipe 100 and the container 600, so as to prevent materials from entering the main pipe 100 during non-sampling stages and affecting the movement of the sampling core 200.

[0026] In this embodiment, as shown in the figure, the main pipe 100 is a straight pipe structure along the horizontal direction, and the control cavity inside the main pipe 100 is also correspondingly arranged along the horizontal direction. As an alternative embodiment, the main pipe 100 can also be inclined to achieve material sampling.

[0027] Specifically, in this embodiment, the driving mechanism is a driving handle 300 fixedly connected to the sampling tube core 200, and the sampling tube is provided with an operating groove 131 for the driving handle 300 to pass through and move. As an alternative embodiment, the driving mechanism can also adopt common driving devices such as electric driving mechanism, hydraulic driving mechanism, and magnetic driving mechanism, but obviously the cost is significantly higher than that of the driving handle 300.

[0028] The operating groove 131 engages with the drive handle 300, allowing the drive handle 300 to move along the operating groove 131 between the sampling position and the sample dispensing position. This facilitates operation. Specifically, in this embodiment, the structure of the operating groove 131 is as follows: Figure 4 As shown, it includes a first limiting groove 1311 and a second limiting groove 1312. The first limiting groove 1311 is a straight groove extending in the axial direction, and the second limiting groove 1312 is a semi-circular annular groove. When the drive handle 300 moves along the operating groove 131 to the position where the first limiting groove 1311 and the second limiting groove 1312 connect, the sampling core 200 is located in the middle position. Figure 5 As shown, the portion of the sampling tube core 200 with the sampling groove 210 corresponds to the position of the sampling port 112, and the sampling groove 210 of the sampling tube core 200 is set upward. This setting enables the material in the sampling groove 210 to be smoothly transported to the position above the sampling port 112, and then rotated downward through the sampling pipe 500 connected to the sampling port 112 to leave the sampling tube.

[0029] In this embodiment, a sealing structure is provided between the inner wall of the main tube 100 and the outer wall of the sampling tube core 200. This sealing structure is located between the sample outlet 112 and the operating groove 131, achieving a sealed discharge environment and preventing material leakage into the operating groove 131. Specifically, as shown... Figure 3 As shown, the main pipe 100 includes a first pipe fitting 110, a second pipe fitting 120, and a third pipe fitting 130 sequentially fixedly connected along the axial direction. The sampling port 111 and the sampling outlet 112 are respectively located at one end and the lower side of the first pipe fitting 110. The operating groove 131 is located on the third pipe fitting 130. Figure 6 , Figure 7As shown, the inner walls of the second pipe fitting 120 are provided with grooves at both ends for forming sealing grooves with the first pipe fitting 110 and the third pipe fitting 130. The sealing grooves are provided with sealing elements 140 that seal with the outer wall of the sampling tube core 200. This arrangement facilitates the installation of the sealing elements 140 and forms a double sealing structure, making the sealing more reliable.

[0030] In this embodiment, the first pipe fitting 110, the second pipe fitting 120, and the third pipe fitting 130 are detachably fixedly connected. Specifically, they can adopt common detachable pipe connection structures such as flange connection and clamp connection, which facilitates cleaning and replacement of the seal 140.

[0031] like Figure 8 As shown, the main pipe 100 has a connecting flange 113 on the outer periphery of one end where the sampling port 111 is located. The connecting flange 113 has a first connecting part 1131 for connecting with the flange of the sampling valve 400 and a second connecting part 1132 for connecting with the flange of the container 500. In this embodiment, during connection, the sampling valve 400 is first connected to the flange of the main pipe 100, and then the main pipe 100 is connected to the flange of the container 500.

[0032] In this embodiment, the sample outlet pipe 500 and the first pipe fitting 110 are integrally formed.

[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sampling device, characterized in that, include: The sampling tube has a main tube (100) with a control cavity arranged in a straight line inside the main tube (100). One end of the main tube (100) forms a sampling port (111) connected to the control cavity, and the side of the main tube (100) forms a sampling outlet (112) connected to the control cavity. The sampling core (200) is adapted to the control cavity of the main tube (100) and is set in the control cavity. The middle part is provided with a sampling groove (210) with the opening located on the outer peripheral surface. It is movable relative to the main tube (100) and has a sampling position and a sampling position. When the sampling core (200) is at the sampling position, the part of the sampling core (200) with the sampling groove (210) is located outside the sampling port (111) and the sampling groove (210) of the sampling core (200) is set upward; When the sampling core (200) is at the sampling position, the part of the sampling core (200) with the sampling groove (210) corresponds to the position of the sampling port (112) and the sampling groove (210) of the sampling core (200) is set towards the sampling port (112); A drive mechanism is used to drive the sampling die (200) to move relative to the main tube (100) between the sampling position and the sample dispensing position.

2. The sampling device according to claim 1, characterized in that: The driving mechanism is a driving handle (300) fixedly connected to the sampling tube core (200), and the sampling tube is provided with an operating groove (131) for the driving handle (300) to pass through and move.

3. The sampling device according to claim 2, characterized in that: The operation slot (131) is limited to the drive handle (300), so that the drive handle (300) moves along the operation slot (131) between the sampling position and the sample dispensing position.

4. The sampling device according to claim 3, characterized in that: The control tube is arranged horizontally, and the sample outlet (112) is located on the lower side of the main tube (100); the sampling core (200) has a middle position. When the sampling core (200) is in the middle position, the part of the sampling core (200) with the sampling groove (210) corresponds to the position of the sample outlet (112) and the sampling groove (210) of the sampling core (200) is arranged facing upward; The operating groove (131) includes a first limiting slide groove (1311) and a second limiting slide groove (1312); When the drive handle (300) is engaged with the first limiting slide groove (1311) for limiting and sliding, the drive handle (300) slides linearly between the sampling position and the intermediate position; When the drive handle (300) is engaged with the second limiting slide groove (1312) for limiting and sliding, the drive handle (300) rotates circumferentially between the middle position and the sample dispensing position.

5. The sampling device according to any one of claims 2-4, characterized in that: A sealing fit structure is provided between the inner wall of the main tube (100) and the outer wall of the sampling tube core (200), and the sealing fit structure is located between the sample outlet (112) and the operating groove (131).

6. The sampling device according to claim 5, characterized in that: The main pipe (100) includes a first pipe fitting (110), a second pipe fitting (120), and a third pipe fitting (130) that are fixedly connected in sequence along the axial direction. The sampling port (111) and the sample outlet (112) are respectively located at one end and the lower side of the first pipe fitting (110). The operating groove (131) is located on the third pipe fitting (130). The inner walls of the second pipe fitting (120) are provided with grooves at both ends for forming sealing grooves with the first pipe fitting (110) and the third pipe fitting (130). The sealing groove is provided with a sealing element (140) that seals against the outer wall of the sampling tube core (200).

7. The sampling device according to claim 6, characterized in that: The first pipe fitting (110), the second pipe fitting (120), and the third pipe fitting (130) are detachably and fixedly connected.

8. The sampling device according to any one of claims 1-4, characterized in that: It also includes a sampling valve (400), which has a material inlet, a material outlet and a control valve chamber connected between the material inlet and the material outlet. The material inlet, the material outlet and the sampling port (111) are coaxially arranged and the material outlet is connected to the sampling port (111). When the sampling core (200) is at the sampling position, the part of the sampling core (200) with the sampling groove (210) is located outside the material inlet.

9. The sampling device according to claim 8, characterized in that: The main pipe (100) has a sampling port (111) at one end with a connecting flange (113) on its outer periphery. The connecting flange (113) has a first connecting part (1131) for connecting with the sampling valve (400) flange and a second connecting part (1132) for connecting with the container (600) flange.

10. The sampling device according to any one of claims 1-4, characterized in that: The sampling tube includes a sample outlet tube (500) connected to the sample outlet (112).

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