Vertical ceramic ball core check valve

Abstract

The utility model discloses a vertical ceramic ball core check valve, which relates to the field of check valve structures, and comprises a valve body, the valve body comprises a feeding part, a check part is arranged at the top of the feeding part, a connecting part is arranged at the top of the check part, and a slidable check ball core is arranged in the check part; a limiting piece is arranged in the valve body and arranged above the check ball core. According to the vertical ceramic ball core check valve, the situation that after a diaphragm pump stops, the pickaxe ball flows into a pipeline, and consequently the pipeline is blocked frequently can be avoided, meanwhile, the situation that materials are polluted after the pickaxe ball abrades the check ball core can be avoided, cost is saved, and grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of check valve structures, and particularly to a vertical ceramic ball core check valve. Background Art

[0002] The feeding of the LPM-3L sand mill is controlled by a valve between the feeding device. However, due to the small particle size of the grinding balls in the sand mill cavity, 99% of the particle size distribution is between 0.27 mm and 0.33 mm. During the feeding and grinding process of the sand mill, the grinding balls in the cavity will flow into the pipeline after the diaphragm pump stops and accumulate on the valve flap, resulting in frequent blockage of the pipeline. At the same time, after the common check valve ball core contacts the pressurized grinding balls, it is easily worn by the pressurized grinding balls, and the wear debris of the check valve ball core is likely to contaminate the material, thereby reducing the purity of the material. Content of the Utility Model

[0003] The purpose of the utility model is to provide a vertical ceramic ball core check valve, which can avoid the grinding balls flowing into the pipeline after the diaphragm pump stops, thus causing frequent blockage of the pipeline. At the same time, it can avoid the grinding balls wearing the check valve ball core and contaminating the material, save costs and improve the grinding efficiency.

[0004] The above optimized structure of the utility model is achieved through the following technical solutions: a vertical ceramic ball core check valve, including a valve body, the valve body includes a feeding part, a check part is provided at the top of the feeding part, a connecting part is provided at the top of the check part, and a slidable check ball core is provided in the check part;

[0005] A limiting part is provided in the valve body, and the limiting part is arranged above the check ball core.

[0006] In some embodiments, the check ball core is a ceramic ball core.

[0007] In some embodiments, a limiting groove is provided at the top of the check ball core, the limiting part includes a limiting rod, the limiting rod is arranged on one side of the check part close to the connecting part, and the limiting groove is in plug-in fit with the limiting rod.

[0008] In some embodiments, the limiting groove is a cross groove, the limiting rod is a cross rod, and the ends of the limiting rod are fixedly connected to the inner wall of the check part.

[0009] In some embodiments, the feeding part, the check part and the connecting part are all hollow cylinders, and the inner diameters of the feeding part and the connecting part are smaller than the diameter of the check ball core, and the inner diameter of the check part is larger than the diameter of the check ball core.

[0010] In some embodiments, the height of the limiting rod plus the height of the check part is less than the diameter of the check ball core.

[0011] In some embodiments, the check portion is made of flexible ABS plastic.

[0012] In some embodiments, external threads are provided at both ends of the check portion, internal threads are provided at one end of the feeding portion close to the check portion and at one end of the connecting portion close to the check portion, and the external threads are in screw fit with the internal threads.

[0013] In some embodiments, when the limiting groove is in plug-in fit with the limiting rod, the distance between the top of the check ball core and the connecting portion is less than the diameter of the pick ball but greater than the diameter of the material; when the check ball core is in contact with the feeding portion, the distance between the bottom of the check ball core and the connecting portion is less than the diameter of the pick ball.

[0014] In summary, the present utility model has the following beneficial effects:

[0015] This vertical ceramic ball core check valve uses a ceramic ball core, which improves the wear resistance of the check valve, avoids the problem of being worn by the pick ball under pressure, and thus ensures the purity of the material; at the same time, the distance design between the check ball core and the connecting portion and the feeding portion can effectively prevent the pick balls from accumulating in the pipeline and avoid frequent blockage of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural diagram of the present utility model;

[0017] Figure 2 is a top view of the present utility model;

[0018] Figure 3 is a sectional view taken along the A-A direction of the present utility model;

[0019] Figure 4 is a top view of the check ball core of the present utility model.

[0020] In the figure: 1. Valve body 11. Feeding portion; 12. Check portion; 13. Connecting portion; 2. Check ball core; 21. Limiting groove; 3. Limiting member; 31. Limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Reference Figures 1-4, A vertical ceramic ball core check valve, comprising a valve body 1. The valve body includes a feeding part 11, a check part 12 and a connecting part 13. The feeding part 11 is arranged at the bottom of the valve body 1 and is connected to a feeding device for receiving materials; the check part 12 is arranged on top of the feeding part 11 and internally provided with a slidable check ball core 2. The feeding part 11, the check part 12 and the connecting part 13 can all be hollow cylinders, and the inner diameters of the feeding part 11 and the connecting part 13 are smaller than the diameter of the check ball core 2, while the inner diameter of the check part 12 is larger than the diameter of the check ball core 2. The check ball core 2 can be made of ceramic material, featuring high hardness and high wear resistance, and can effectively resist the wear of the pressure-bearing pick balls. The connecting part 13 is arranged on top of the check part 12 for connecting to a sand mill. A limiting member 3 is also arranged inside the valve body 1. The limiting member 3 is arranged above the check ball core 2 to limit the rising position of the check ball core 2 and prevent it from being flushed by the fluid towards the connecting part 13, thus blocking the connecting part 13.

[0023] A limiting groove 21 is arranged at the top of the check ball core 2. The limiting member 3 includes a limiting rod 31, and the limiting rod 31 is inserted into the limiting groove 21 to limit the rising position of the check ball core 2. At the same time, it can ensure the stable operation of the check ball core and prevent the check ball core 2 from rotating during the rising process, affecting the check flow effect.

[0024] In some embodiments, the limiting groove 21 can be a cross groove, and the limiting rod 31 can be a cross rod. The ends of the limiting rod 31 are fixedly connected to the inner wall of the check part 12, which can enhance the connection strength of the check part 12 and the stability of the limitation on the check ball core 2.

[0025] In some embodiments, the height of the limiting rod 31 plus the height of the check part 12 can be greater than the diameter of the check ball core 2. When the check ball core 2 contacts the feeding part 11, it can prevent the check ball core 2 from separating from the limiting rod 31, thus losing the limiting effect on the check ball core 2.

[0026] In some embodiments, the check part 12 is made of flexible ABS plastic. This material has both good wear resistance and certain elasticity, which can ensure the smoothness of the check ball core 2 during the up and down sliding process, and at the same time avoid direct collision with the ceramic ball core 2, thus wearing the check ball core 2.

[0027] In some embodiments, external threads are arranged at both ends of the check part 12, and internal threads are arranged at one end of the feeding part 11 close to the check part 12 and one end of the connecting part 13 close to the check part 12. The external threads are screwed and matched with the internal threads, which is convenient for the overall disassembly and assembly of the valve body 1 and the repair and replacement of each component.

[0028] In some embodiments, when the limiting groove 21 is inserted and cooperated with the limiting rod 31, the distance between the top of the check ball core 2 and the connecting portion 13 is less than the diameter of the pick ball but greater than the diameter of the material; this can ensure the smooth passage of the material. When the check ball core 2 is in contact with the feeding portion 11, the distance between the bottom of the check ball core 2 and the connecting portion 13 is less than the diameter of the pick ball, which can prevent the pick ball from flowing into the check portion 12 and avoid the accumulation of pick balls in the pipeline, thus causing frequent blockages of the pipeline.

[0029] The specific working principle is as follows:

[0030] When the sand mill is working, the material enters the valve body 1 from the feeding portion 11, pushing the check ball core 2 to rise along the limiting rod 31. When the limiting rod 31 is completely inserted and cooperated with the limiting groove 21, a passage allowing only the material to pass through is formed between the check ball core 2 and the connecting portion 13. The material passes through the check portion 12 and enters the connecting portion 13, and then flows to the next process. When the diaphragm pump stops working, the check ball core 2 moves downward under the action of its own gravity and the gravity of the pick ball. The check ball core 2 blocks the connection port between the feeding portion and the check portion. At this time, the distance between the bottom of the check ball core 2 and the connecting portion 13 is still less than the diameter of the pick ball, which can prevent the pick ball from flowing into the check portion 12. At the same time, since the check ball core 2 is made of ceramic material and has high wear resistance, it can effectively resist the wear of the pick ball under pressure, ensuring the service life of the check valve and the purity of the material.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vertical ceramic ball core check valve, comprising a valve body (1), characterized in that: The valve body (1) includes a feed part (11), a check part (12) is provided at the top of the feed part (11), a connection part (13) is provided at the top of the check part (12), and a slidable check ball core (2) is provided in the check part (12). A limiting member (3) is provided in the valve body (1), and the limiting member (3) is arranged above the check ball core (2).

2. The vertical ceramic ball core check valve according to claim 1, characterized in that: The check ball core (2) is a ceramic ball core.

3. The vertical ceramic ball core check valve according to claim 1, characterized in that: A limiting groove (21) is provided at the top of the check ball core (2), the limiting member (3) includes a limiting rod (31), the limiting rod (31) is arranged on the side of the connection part (13) close to the check part (12), and the limiting groove (21) is in plug-in fit with the limiting rod (31).

4. The vertical ceramic ball core check valve according to claim 3, characterized in that: The limiting groove (21) is a cross groove, the limiting rod (31) is a cross rod, and the ends of the limiting rod (31) are fixedly connected to the inner wall of the connection part (13).

5. The vertical ceramic ball core check valve according to claim 2, characterized in that: The feed part (11), the check part (12) and the connection part (13) are all hollow cylinders, and the inner diameters of the feed part (11) and the connection part (13) are smaller than the diameter of the check ball core (2), and the inner diameter of the check part (12) is larger than the diameter of the check ball core (2).

6. The vertical ceramic ball core check valve according to claim 4, characterized in that: The height of the limiting rod (31) plus the height of the check part (12) is smaller than the diameter of the check ball core (2).

7. The vertical ceramic ball core check valve according to claim 1, characterized in that: The check part (12) is made of flexible ABS plastic.

8. A vertical ceramic ball core check valve according to claim 1, characterized in that: External threads are provided at both ends of the check part (12), internal threads are provided at one end of the feed part (11) close to the check part (12) and at one end of the connection part (13) close to the check part (12), and the external threads are in screw fit with the internal threads.

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