Ball valve filtering structure

Abstract

The utility model discloses a ball valve filtering structure which comprises a valve body, a flow channel is formed in the valve body, a ball body is rotatably arranged in the flow channel, a valve rod connected with the ball body is further arranged in the valve body, and the ball valve filtering structure is characterized in that the ball body comprises a first body, a filtering net and a bottom block, the first body is concavely provided with a limiting groove, and the bottom block is arranged in the limiting groove. A limiting groove is formed in the first body, the filter screen is clamped in the limiting groove in a sliding mode, an opening groove communicating with the outside and the limiting groove is formed in the first body, the bottom block is detachably connected into the opening groove and limits the filter screen, a bottom groove is formed in the bottom of the valve body, and a bottom cover is fixed to the bottom groove. The utility model has the following advantages and effects: the open slot is arranged at the bottom of the valve body, so that the filter screen can be replaced from the bottom, and the operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the field of valves, and more specifically, to a ball valve filtering structure. Background Art

[0002] In the market, as a common fluid control device, the ball valve of the valve is widely used in fields such as petroleum, chemical industry, and water treatment. It realizes the on-off or flow regulation of the fluid through the rotation of the ball. In practical applications, the fluid often contains impurities or particulate matters. If directly entering the inside of the ball valve, it may cause wear of the sealing surface, damage to the valve seat, or jamming of the ball, thereby affecting the sealing performance and service life of the valve. Existing ball valves usually adopt an externally added filtering structure (such as a pre-filter or a filter screen) to intercept impurities in the fluid, but this design has many deficiencies.

[0003] First of all, the externally added filter is fixed. After long-term use, due to the accumulation of impurities, it usually needs to be replaced. However, the disassembly of the existing filtering structure is relatively cumbersome, and most of its replacement and maintenance require the removal of the pipelines or valves at both ends of the valve body, with cumbersome operation and may affect the normal operation of the system; especially its applicability is limited in a compact installation environment. Therefore, there is an urgent need for a filtering structure that is easy to maintain to solve the problem of inconvenient replacement in the prior art. Summary of the Utility Model

[0004] The utility model provides a ball valve filtering structure, aiming to solve the problem that the filter screen of the valve in the prior art is difficult to replace.

[0005] To achieve the above object, the utility model provides the following technical solution: A ball valve filtering structure includes a valve body. A flow channel is formed inside the valve body, and a ball is rotatably arranged in the flow channel. A valve rod connecting the ball is also arranged inside the valve body. The feature is that: the ball includes a first body, a filter screen, and a bottom block. A limiting groove is recessed on the first body, and the filter screen is slidably clamped in the limiting groove. An opening groove communicating with the outside and the limiting groove is opened on the first body. The bottom block is detachably connected to the opening groove and limits the filter screen. A bottom groove is formed at the bottom of the valve body, and a bottom cover is fixed on the bottom groove.

[0006] The utility model has the following effects: The detachable connection between the bottom block and the first body enables the filter screen to be replaced from the lower end. At the same time, an opening groove is provided at the lower end of the valve body, which cooperates with the structure of the bottom block, enabling the filter screen to be replaced from the bottom during replacement. At the same time, the shape of the bottom block can be changed, making the replacement more convenient. The existence of the bottom block can not only limit the filter screen but also directly clean the center of the flow channel of the ball.

[0007] The present utility model further provides that: a limit buckle is arranged in the limit groove, a filter rack is arranged on the outer periphery of the filter net, a clamping gap is formed between the filter rack and the filter net, and the limit buckle is clamped with the clamping gap to fix the filter rack.

[0008] The present utility model has the following effects: during installation, by sliding the filter rack, the limit buckle clamps the filter rack to complete the fixation, which not only plays a limiting role but also facilitates installation. At the same time, during actual use, notches can be opened on the filter rack according to requirements to facilitate rotational disassembly.

[0009] The present utility model further provides that: limit blocks are formed at both ends of the bottom block, a limit sliding groove located in the opening groove is recessed on the first body, and the limit blocks include a plurality of reinforcing ribs.

[0010] The present utility model has the following effects: the limit blocks can not only play a limiting role but also enhance the strength in the form of reinforcing ribs. During actual use, the reinforcing ribs can be arranged on the bottom block or the first body according to requirements.

[0011] The present utility model further provides that: fixing protrusions are arranged at both ends of the bottom block, and fixing grooves located at both ends of the opening groove and matching with the fixing protrusions are recessed on the first body.

[0012] The present utility model has the following effects: while limiting, it plays an anti-misoperation role and is convenient for installation.

[0013] The present utility model further provides that: a support portion protrudes from the bottom cover, a groove for fitting a sphere is recessed on the support portion, a rotating ring groove is arranged in the groove, and a plurality of rotating balls are arranged in the rotating ring groove.

[0014] The present utility model has the following effects: it supports the sphere, and the arrangement of the rotating balls can effectively reduce the wear of the sphere during rotation.

[0015] The present utility model further provides that: a sealing edge extends from the bottom of the valve body. When the bottom cover is fixed to the valve body, a sealing gap is formed among the bottom cover, the valve body and the sealing edge, and a sealing ring is arranged in the sealing gap.

[0016] The present utility model has the following effects: enhancing the sealing performance between the valve body and the bottom cover.

[0017] The present utility model further provides that: a mating fixed connection hole is formed between the fixing protrusion and the fixing depression, and a bolt passes through the fixed connection hole to fix the bottom block and the first body.

[0018] The present utility model has the following effects: facilitating fixation. Description of the Drawings

[0019] Figure 1 Structural diagram of the embodiment of the present utility model;

[0020] Figure 2 Stereogram of the sphere of the embodiment of the present utility model;

[0021] Figure 3 Stereogram of the first body of the embodiment of the present utility model;

[0022] Figure 4 Stereogram of the bottom block of the embodiment of the present utility model;

[0023] Figure 5 Enlarged view of part A;

[0024] Figure 6 Stereogram of the support part of the embodiment of the present utility model.

[0025] In the figure: 1, valve body; 2, sphere; 21, first body; 22, filter screen; 23, bottom block; 24, limit groove; 25, opening groove; 3, bottom cover; 26, limit buckle; 31, filter rack; 32, limit block; 41, fixed protrusion; 42, fixed groove; 5, support part; 51, rotating ring groove; 52, rotating ball; 53, sealing edge; 54, sealing gap. Specific embodiments

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. 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.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] Refer to Figures 1 to 5 For further description of the embodiments of the present utility model.

[0029] A ball valve filtering structure includes a valve body 1. A flow channel is formed inside the valve body 1. A sphere 2 is rotatably arranged in the flow channel. A valve rod connecting the sphere 2 is also arranged inside the valve body 1. Its characteristics are: The sphere 2 includes a first body 21, a filter net 22 and a bottom block 23. A limiting groove 24 is recessed on the first body 21. The filter net 22 is slidably clamped in the limiting groove 24. An opening groove 25 communicating with the outside and the limiting groove 24 is opened on the first body 21. The bottom block 23 is detachably connected to the opening groove 25 and limits the filter net 22. A bottom groove is formed at the bottom of the valve body 1, and a bottom cover 3 is fixed on the bottom groove. The detachable connection between the bottom block 23 and the first body 21 enables the filter net 22 to be replaced from the lower end. At the same time, an opening groove 25 is provided at the lower end of the valve body 1, which, in cooperation with the structure of the bottom block 23, enables the filter net 22 to be replaced from the bottom. At the same time, the shape of the bottom block 23 can be changed to make the replacement more convenient. The presence of the bottom block 23 can not only limit the filter net 22, but also directly clean the center of the flow channel of the sphere 2.

[0030] A limiting buckle 26 is arranged in the limiting groove 24. A filter frame 31 is arranged on the outer periphery of the filter net 22. A clamping gap is formed between the filter frame 31 and the filter net 22. The limiting buckle 26 is clamped with the clamping gap to fix the filter frame 31. During installation, by sliding the filter frame 31, the limiting buckle 26 clamps the filter frame 31 to complete the fixation, which not only plays a limiting role but also facilitates installation. At the same time, in actual use, notches can be opened on the filter frame 31 according to needs to facilitate the disassembly of rotation.

[0031] Limiting blocks 32 are formed at both ends of the bottom block 23. A limiting sliding groove located in the opening groove 25 is recessed on the first body 21. The limiting blocks 32 include a number of reinforcing ribs. The limiting blocks 32 can not only play a limiting role, but also enhance the strength by being set in the form of reinforcing ribs. In actual use, the reinforcing ribs can be arranged on the bottom block 23 or the first body 21 according to needs.

[0032] Fixing protrusions 41 are arranged at both ends of the bottom block 23. Fixing grooves 42 that are located at both ends of the opening groove 25 and cooperate with the fixing protrusions 41 are recessed on the first body 21. While limiting, it plays a role in preventing misassembly and is convenient for installation.

[0033] A supporting portion 5 protrudes from the bottom cover 3. A groove cooperating with the sphere 2 is recessed on the supporting portion 5. A rotating ring groove 51 is arranged in the groove, and a number of rotating balls 52 are arranged in the rotating ring groove 51. It supports the sphere 2, and the arrangement of the rotating balls 52 can effectively reduce the wear of the rotation of the sphere 2.

[0034] A sealing edge 53 extends from the bottom of the valve body 1. When the bottom cover 3 is fixed to the valve body 1, a sealing gap 54 is formed among the bottom cover 3, the valve body 1 and the sealing edge 53, and a sealing ring is arranged in the sealing gap 54 to enhance the sealing performance between the valve body 1 and the bottom cover 3.

[0035] A mating fixed connection hole is formed between the fixed protrusion 41 and the fixed depression, and a bolt passes through the fixed connection hole to fix the bottom block 23 and the first body 21, which facilitates the fixation.

[0036] This specific embodiment is only an interpretation of the present invention and not a limitation thereof. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A ball valve filtering structure, comprising a valve body, a flow passage is formed in the valve body, a ball is rotatably arranged in the flow passage, and a valve stem connecting the ball is further arranged in the valve body, and the feature is that: The sphere includes a first body, a filter screen and a bottom block. A limiting groove is formed by depression on the first body. The filter screen is slidably clamped in the limiting groove. An opening groove communicating with the outside and the limiting groove is formed on the first body. The bottom block is detachably connected in the opening groove and limits the filter screen. A bottom groove is formed at the bottom of the valve body, and a bottom cover is fixed on the bottom groove.

2. The ball valve filtering structure according to claim 1, characterized in that: Limiting buckles are arranged in the limiting groove. A filter frame is arranged on the outer periphery of the filter screen. A clamping gap is formed between the filter frame and the filter screen. The limiting buckles are clamped with the clamping gap to fix the filter frame.

3. The ball valve filtering structure according to claim 2, characterized in that: Limiting blocks are formed at both ends of the bottom block. Limiting sliding grooves located in the opening groove are formed by depression on the first body. The limiting blocks include a number of reinforcing ribs.

4. A ball valve filtering structure according to claim 3, characterized in that: Fixing protrusions are arranged at both ends of the bottom block. Fixing grooves located at both ends of the opening groove and matching with the fixing protrusions are formed by depression on the first body.

5. The ball valve filtering structure according to claim 4, characterized in that: A supporting part protrudes from the bottom cover. A groove matching with the sphere is formed by depression on the supporting part. A rotating ring groove is arranged in the groove, and a number of rotating balls are arranged in the rotating ring groove.

6. The ball valve filtering structure according to claim 5, characterized in that: A sealing edge extends from the bottom of the valve body. When the bottom cover is fixed to the valve body, a sealing gap is formed among the bottom cover, the valve body and the sealing edge, and a sealing ring is arranged in the sealing gap.

7. A ball valve filtering structure according to claim 5, characterized in that: A matching fixed connection hole is formed between the fixing protrusion and the fixing depression. A bolt passes through the fixed connection hole to fix the bottom block and the first body.

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