Ball type sampling mechanism

Abstract

A ball type sampling mechanism comprises a valve body and a ball valve element internally provided with a sampling channel, the valve body comprises an installation base, a shell, a first hemisphere and a second hemisphere, the installation base is used for being installed on a sampling opening, the shell is detachably connected with the installation base, and the first hemisphere and the second hemisphere are arranged between the installation base and the shell; the ball valve element is rotatably arranged between the first hemisphere and the second hemisphere, the first hemisphere and / or the second hemisphere are / is provided with a sampling outlet capable of being communicated with the sampling channel, the sampling channel is obliquely arranged relative to the horizontal axis, the first hemisphere and the second hemisphere are fixed through the installation base and the shell, the number of parts is small, installation is easy, and the sealing effect is good. The ball valve element can be wrapped by the first hemisphere and the second hemisphere, the sealing effect is achieved, only the first hemisphere and the second hemisphere need to be replaced after abrasion, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to sampling mechanisms, and more particularly to a spherical sampling mechanism. Background Technology

[0002] Currently available sampling valves for fluidized beds, such as the one described in CN118392543A ("A sealing element and sampling device"), require pulling to connect the sampling channel for sampling. When the valve is not pulled, a built-in spring disconnects the sampling channel, thus stopping sampling. However, this type of valve requires continuous pulling to sample, resulting in dead zones inside the valve, making it difficult to clean and failing to meet cleanliness requirements. Furthermore, the spring is prone to fatigue, leading to a short lifespan. Additionally, the rubber sealing rings used in the sampling valve are prone to aging, resulting in poor sealing performance.

[0003] Existing ball valves have no sealing rings or springs, making them very suitable for sampling. For example, the ball sampling valve for filtration equipment disclosed in CN208221646U has a valve body that includes a frame and a valve seat. The valve seat includes a first part and a second part located on both sides of the valve core. The first part and the second part need to be pressed by flanges at both ends. The entire valve body has too many parts, making installation complicated and costly, and it also has a certain impact on sealing performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a ball-type sampling mechanism with simple structure and good sealing effect.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a ball sampling mechanism, including a valve body and a ball valve core with an internal sampling channel. The valve body includes a mounting base, a shell, a first hemisphere, and a second hemisphere. The mounting base is used to install on the sampling port. The shell is detachably connected to the mounting base. The first hemisphere and the second hemisphere are located between the mounting base and the shell. The ball valve core is rotatably located between the first hemisphere and the second hemisphere. The first hemisphere and / or the second hemisphere are provided with a sampling outlet that can communicate with the sampling channel. The sampling channel is arranged at an angle relative to the horizontal axis. The mounting base and the shell fix the first hemisphere and the second hemisphere. The number of parts is small, the installation is easy, and the sealing effect is good. The first hemisphere and the second hemisphere can wrap around the ball valve core to play a sealing role. After wear, only the first hemisphere and the second hemisphere need to be replaced, which reduces maintenance costs.

[0006] Furthermore, the sampling channel is eccentrically located inside the ball valve core. When the ball valve core is rotated, the area passed by both ends of the sampling channel will be smaller than the area set in the conventional setting. The conventional setting is that the sampling channel passes through the center of the ball valve core. The eccentric setting can improve the sealing performance of the first hemisphere and the second hemisphere to the ball valve core.

[0007] Furthermore, the mounting base is provided with a first receiving part for accommodating the first hemisphere, and the outer shell is provided with a second receiving part for accommodating the second hemisphere. The first hemisphere is disposed on the mounting base, and the second hemisphere is disposed on the outer shell, making it easy to assemble and disassemble.

[0008] Furthermore, the first and second hemispheres are provided with stepped clamping parts, which are located between the mounting base and the outer shell. When the mounting base is connected to the outer shell, the stepped clamping parts can be fixed, thereby fixing the first and second hemispheres.

[0009] Furthermore, the ball valve core is provided with a rotating component, which is rotatably mounted on the second hemisphere and the outer shell, and the rotating component is a handle.

[0010] Furthermore, the rotating component is arranged at an angle relative to the horizontal axis, and the rotating component is tilted away from the mounting base, which makes it convenient for the operator to rotate the rotating component.

[0011] Furthermore, the outer shell is provided with a rotation limiting component for limiting the rotation of the rotating component. Generally, two such components are provided to determine whether the sampling channel is connected or disconnected.

[0012] Furthermore, the first hemisphere, the second hemisphere, and the outer shell are all provided with sampling outlets, and the sampling outlet of the outer shell is provided with a detachable sampling container.

[0013] Furthermore, the first and second hemispheres are plastic shells, specifically polytetrafluoroethylene, which is wear-resistant and has a low coefficient of friction.

[0014] The beneficial effects of this utility model are as follows: The mounting base and the outer shell of this utility model fix the first hemisphere and the second hemisphere. The number of parts is small, the installation is easy, and the sealing effect is good. The first hemisphere and the second hemisphere can wrap the ball valve core to play a sealing role. After wear, only the first hemisphere and the second hemisphere need to be replaced, which reduces maintenance costs. Attached Figure Description

[0015] Figure 1 —A cross-sectional view of this utility model;

[0016] Figure 2 —A cross-sectional view of the present invention when closed;

[0017] Figure 3 —Dissected view of this utility model;

[0018] Figure 4 —Exploded view of this utility model;

[0019] Figure 5 —An exploded view of this utility model from another perspective.

[0020] In the diagram: a-horizontal axis, 1-valve body, 11-mounting seat, 12-outer shell, 13-first hemisphere, 14-second hemisphere, 2-ball valve core, 21-sampling channel, 3-sampling outlet, 4-step clamping part, 5-sampling container, 6-rotating part, 61-rotation limit part, 62-mounting rod, 63-limiting pin, 7-positioning pin, 8-sealing ring, 9-connecting rod. Detailed Implementation

[0021] Reference Figures 1-5 A ball-type sampling mechanism includes a valve body 1 and a ball valve core 2 with an internal sampling channel 21. The valve body 1 includes a mounting base 11, a housing 12, a first hemisphere 13, and a second hemisphere 14. The mounting base 11 is used to mount on the sampling port. The housing 12 is detachably connected to the mounting base 11. The first hemisphere 13 and the second hemisphere 14 are disposed between the mounting base 11 and the housing 12. The ball valve core 2 is rotatably disposed between the first hemisphere 13 and the second hemisphere 14. The first hemisphere 13, the second hemisphere 14, and the housing 12 are all provided with sampling outlets 3. In other embodiments, The sampling outlet 3 can be set on the first hemisphere 13 or the second hemisphere 14; the first hemisphere 13 and the second hemisphere 14 are provided with a stepped pressing part 4, which is located between the mounting base 11 and the outer shell 12. When the mounting base 11 and the outer shell 12 are connected, the stepped pressing part 4 can be fixed, thereby fixing the first hemisphere 13 and the second hemisphere 14. The mounting base 11 is provided with a first receiving part for accommodating the first hemisphere 13, and the outer shell 12 is provided with a second receiving part for accommodating the second hemisphere 14. The sampling channel 21 is arranged at an inclination relative to the horizontal axis a.

[0022] The sampling channel 21 is eccentrically located inside the ball valve core 2. When the ball valve core 2 is rotated, the area passed by both ends of the sampling channel 21 will be smaller than the area set in the conventional setting. The conventional setting is that the sampling channel 21 passes through the center of the ball valve core 2. The eccentric setting can improve the sealing performance of the first hemisphere 13 and the second hemisphere 14 to the ball valve core 2.

[0023] A sealing ring 8 is provided on the first hemisphere 13. The sealing ring 8 is located between the mounting base 11 and the first hemisphere 13. The sealing ring 8 is used to prevent materials from entering between the first hemisphere 13 and the mounting base 11.

[0024] The ball valve core 2 is provided with a rotating component 6, which is rotatably mounted on the second hemisphere 14 and the outer shell 12. The rotating component 6 is a handle. The rotating component 6 is inclined relative to the horizontal axis a and is inclined away from the mounting base 11 to facilitate the operator to rotate the rotating component 6. The outer shell 12 is provided with a rotation limiting component 61 for limiting the rotation of the rotating component 6. Generally, two components are provided to determine whether the sampling channel 21 is connected or disconnected. The sampling outlet 3 of the outer shell 12 is provided with a detachable sampling container 5.

[0025] The first hemisphere 13 and the second hemisphere 14 are plastic shells, specifically polytetrafluoroethylene, which is wear-resistant and has a low coefficient of friction.

[0026] The rotating component 6 includes a mounting rod 62 and a limiting pin 63. The mounting rod 62 and the rotating component 6 can be threadedly connected. The limiting pin 63 is located between the ball valve core 2 and the rotating component 6 to ensure that the ball valve core 2 rotates synchronously when the handle (rotating component 6) is turned. A positioning pin 7 is also provided between the outer shell 12 and the mounting base 11. The positioning pin 7 is located on one side of the stepped pressing part 4 of the first hemisphere 13 and the second hemisphere 14 to facilitate the installation of the outer shell 12 and the mounting base 11, and at the same time to limit the first hemisphere 13 and the second hemisphere 14. The outer shell 12 and the mounting base 11 are detachably connected by a connecting rod 9, which is a bolt.

[0027] The working principle and usage of this utility model are as follows: The operator turns the handle (rotating part 6), the ball valve core 2 rotates, and the sampling channel 21 is connected or disconnected. First, the sampling channel 21 is connected, and the material enters the sampling container 5. Then, the sampling channel 21 is disconnected to complete the sampling of the material.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A ball-type sampling mechanism, comprising a valve body (1) and a ball valve core (2) having an internal sampling channel (21), characterized in that: The valve body (1) includes a mounting base (11), a housing (12), a first hemisphere (13), and a second hemisphere (14). The mounting base (11) is used to install on the sampling port. The housing (12) is detachably connected to the mounting base (11). The first hemisphere (13) and the second hemisphere (14) are located between the mounting base (11) and the housing (12). The ball valve core (2) is rotatably located between the first hemisphere (13) and the second hemisphere (14). The first hemisphere (13) and / or the second hemisphere (14) are provided with a sampling outlet (3) that can communicate with the sampling channel (21). The sampling channel (21) is arranged at an inclination relative to the horizontal axis (a).

2. The spherical sampling mechanism according to claim 1, characterized in that: The sampling channel (21) is eccentrically located inside the ball valve core (2).

3. The spherical sampling mechanism according to claim 1, characterized in that: The mounting base (11) is provided with a first receiving part for accommodating the first hemisphere (13), and the outer shell (12) is provided with a second receiving part for accommodating the second hemisphere (14).

4. The spherical sampling mechanism according to claim 1, characterized in that: The first hemisphere (13) and the second hemisphere (14) are provided with a stepped pressing part (4), which is located between the mounting base (11) and the outer shell (12).

5. The spherical sampling mechanism according to claim 3, characterized in that: The ball valve core (2) is provided with a rotating part (6), which is rotatably mounted on the second hemisphere (14) and the outer shell (12).

6. The spherical sampling mechanism according to claim 5, characterized in that: The rotating component (6) is arranged at an angle relative to the horizontal axis (a).

7. The spherical sampling mechanism according to claim 5, characterized in that: The outer casing (12) is provided with a rotation limiting member (61) for limiting the rotation of the rotating member (6).

8. The spherical sampling mechanism according to claim 1, characterized in that: The first hemisphere (13), the second hemisphere (14) and the outer shell (12) are all provided with sampling outlets (3), and the sampling outlets (3) of the outer shell (12) are provided with detachable sampling containers (5).

9. The spherical sampling mechanism according to any one of claims 1 to 8, characterized in that: The first hemisphere (13) and the second hemisphere (14) are plastic shells.

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