Tank bottom ball valve

Abstract

The utility model discloses a tank bottom ball valve which comprises a valve body, a valve ball and a valve shaft used for driving the valve ball to rotate, a valve element hole is formed in the valve ball, a water inlet channel and an outlet channel are arranged at the two ends of the valve body respectively, and a protruding cleaning base is arranged on the outer wall, at the position of the valve ball, of the valve body. The cleaning seat is provided with a through hole communicated with the interior of the valve body, and after the valve ball rotates, the valve element hole can be aligned and communicated with the through hole; the cleaning device further comprises a cleaning component and a sealing plug used for sealing the through hole, the cleaning component comprises a connecting plate and a brush rod, one end of the brush rod is perpendicularly and fixedly connected with the connecting plate, a plurality of bristles are arranged on the side wall of the brush rod, the bristles are flexible, an annular clamping groove is formed in the outer wall of the cleaning base around the through hole, and the annular clamping groove is communicated with the through hole. And the clamping blocks are matched with the clamping grooves in a sliding mode in the circumferential direction, a cleaning structure is arranged, medium residues can be cleaned without disassembly, and operation is convenient and saves labor.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a tank bottom ball valve. Background Art

[0002] Tank bottom ball valve, as the name implies, is usually connected to the tank body. Its valve body is equipped with a specially designed tank bottom connection surface flange, which is directly welded and embedded in the bottom of the reaction tank or container, or installed by flange bolts. Its smooth tapered hole and the ultra-close distance of the ball in the tank prevent the medium from accumulating at the valve inlet, which ensures smooth drainage.

[0003] When the tank bottom ball valve is in use, the medium flows from the main flow channel into the valve body and passes through the valve ball. Usually, there will be some residual medium. If the flow channel passes through a variety of different media, one of the media may produce a chemical reaction with the residual medium inside the valve ball. If the chemical reaction affects the structure inside the valve ball from above, it will affect the normal use of the valve and even pose a certain safety risk. The existing tank bottom ball valve does not have a cleaning structure, and removing the residual medium inside the valve ball requires disassembly, which is cumbersome and laborious. Utility Model Content

[0004] The utility model aims at providing a tank bottom ball valve to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a tank bottom ball valve, comprising a valve body, a valve ball and a valve shaft for driving the valve ball to rotate, the valve ball is provided with a valve core hole, and two ends of the valve body are respectively provided with an inlet channel and an outlet channel, the valve body is provided with a raised cleaning seat at the outer wall of the valve ball position, the cleaning seat is provided with a through hole connected to the inside of the valve body, when the valve ball rotates, the valve core hole can be aligned and connected with the through hole; it also includes a cleaning component and a sealing plug for sealing the through hole, the cleaning component comprises a connecting plate and a brush rod, one end of the brush rod is vertically fixedly connected to the connecting plate, a plurality of bristles are provided on the side wall of the brush rod, the bristles are flexible, the outer wall of the cleaning seat is provided with an annular groove around the through hole, the connecting plate is provided with a block that is adapted to the block connection, and the block is circumferentially slidably matched with the groove.

[0006] By adopting the above technical solution, when in use, the medium enters through the inlet channel, passes through the valve core hole of the valve ball, and then flows out from the outlet channel. When it is necessary to switch the flow of other media, the residue of the previous medium needs to be cleared, and the valve shaft is rotated to drive the valve ball to rotate. At this time, the valve is closed. After the valve ball rotates, the valve core hole is aligned with the through hole. At this time, the sealing plug is removed to open the through hole, and the brush rod is extended into the valve core hole through the through hole. The bristles abut against the inner wall of the valve core hole, and the connecting plate is clamped with the slot through the clamping block. The connecting plate is rotated, and the clamping block rotates along the circumference of the slot, thereby causing the brush rod to rotate, and the bristles clean the inner wall of the valve core hole, thereby brushing off the residue of the medium.

[0007] As a further optimization of the utility model, the through hole is provided with an internal thread, and the sealing plug is provided with an external thread and is threadedly connected to the through hole.

[0008] By adopting the above technical solution, the threaded connection method has a better sealing effect.

[0009] As a further optimization of the utility model, a liquid filling hole is opened on the upper side wall of the through hole, a liquid filling box is arranged above the cleaning seat, a liquid filling port is arranged on the top of the liquid filling box, and a liquid outlet pipe is arranged on the bottom, and the liquid outlet pipe is connected to the upper end of the liquid filling hole.

[0010] By adopting the above technical scheme, cleaning liquid is injected into the liquid adding tank through the liquid adding hole, and the cleaning liquid flows into the liquid adding hole through the liquid outlet pipe, and then enters the valve body. Under the clamping of the cleaning liquid, the cleaning efficiency of the medium residue can be improved. When the sealing plug seals the through hole, the liquid adding hole can be sealed.

[0011] As a further optimization of the utility model, the liquid adding hole is arranged to be inclined from top to bottom toward the inner side of the through hole.

[0012] By adopting the above technical solution, the inclined liquid adding hole can slow down the flow rate of the cleaning liquid, allowing it to flow in slowly. The cleaning liquid flows toward the inside of the through hole and can directly enter the valve core hole under the action of kinetic energy.

[0013] As a further optimization of the utility model, a winding liquid adding channel is provided inside the liquid adding box.

[0014] With the above technical solution, the shape of the liquid adding channel enables the cleaning liquid to flow slowly downward for addition.

[0015] As a further optimization of the utility model, a limiting plate is vertically provided at the end of the sealing plug, and the diameter of the limiting plate is larger than the outer diameter of the slot.

[0016] With the above technical solution, when the sealing plug seals the through hole, the limiting plate limits and locks the sealing plug in the axial position, and the limiting plate blocks the card slot, thereby protecting the card slot.

[0017] The beneficial effects of the utility model are as follows: when in use, the medium enters through the inlet channel, passes through the valve core hole of the valve ball, and then flows out from the outlet channel. When it is necessary to switch the circulation of other media, the residue of the previous medium needs to be cleared, and the valve shaft is rotated to drive the valve ball to rotate. At this time, the valve is closed. After the valve ball rotates, the valve core hole is aligned with the through hole. At this time, the sealing plug is removed to open the through hole, and the brush rod is extended into the valve core hole through the through hole. The bristles abut against the inner wall of the valve core hole, and the connecting plate is clamped with the clamping groove through the clamping block. The connecting plate is rotated, and the clamping block rotates along the circumference of the clamping groove, so that the brush rod rotates, and the bristles clean the inner wall of the valve core hole, thereby brushing off the residue of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 It is a left side cross-sectional structural schematic diagram of the utility model;

[0021] Figure 4 It is a left side cross-sectional structural schematic diagram of the utility model in another state;

[0022] Figure 5 It is a structural schematic diagram of the sealing plug in the utility model;

[0023] Figure 6 It is a structural schematic diagram of the connecting plate in the utility model.

[0024] The meaning of the numbers in the figure are as follows: 1. valve body; 11. valve ball; 111. valve core hole; 12. inlet channel; 13. outlet channel; 14. valve shaft; 2. cleaning seat; 21. through hole; 22. slot; 23. liquid filling hole; 3. sealing plug; 31. limit plate; 41. brush rod; 411. brush bristles; 42. connecting plate; 421. block; 5. liquid filling tank; 51. liquid filling port; 52. liquid outlet pipe; 53. liquid filling channel. DETAILED DESCRIPTION

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0026] See attached Figure 1-6The embodiment disclosed in the utility model further provides: a tank bottom ball valve, comprising a valve body 1, a valve ball 11 and a valve shaft 14 for driving the valve ball 11 to rotate, the valve ball 11 is provided with a valve core hole 111, and both ends of the valve body 1 are respectively provided with a water inlet channel and an outlet channel 13;

[0027] See attached Figure 3 , 5 The valve body 1 is provided with a raised cleaning seat 2 at the outer wall of the valve ball 11, and the cleaning seat 2 is provided with a through hole 21 connected with the inside of the valve body 1. When the valve ball 11 rotates, the valve core hole 111 can be aligned and connected with the through hole 21; it also includes a cleaning component and a sealing plug 3 for sealing the through hole 21. Specifically, the through hole 21 is provided with an internal thread, and the sealing plug 3 is provided with an external thread and is threadedly connected with the through hole 21. The threaded connection has a better sealing effect;

[0028] See attached Figure 4 , 6 The cleaning component includes a connecting plate 42 and a brush rod 41, one end of the brush rod 41 is vertically fixedly connected to the connecting plate 42, a plurality of bristles 411 are provided on the side wall of the brush rod 41, and the bristles 411 are flexible. An annular groove 22 is provided on the outer wall of the cleaning seat 2 around the through hole 21, and a card block 421 is provided on the connecting plate 42 to engage with the card block 421, and the card block 421 is circumferentially slidably matched with the card groove 22;

[0029] See attached Figure 3-4 Furthermore, a liquid adding hole 23 is provided on the upper side wall of the through hole 21, a liquid adding tank 5 is provided above the cleaning seat 2, a liquid adding port 51 is provided on the top of the liquid adding tank 5, and a liquid outlet pipe 52 is provided on the bottom, and the liquid outlet pipe 52 is connected to the upper end of the liquid adding hole 23. Furthermore, the liquid adding hole 23 is inclined from top to bottom toward the inner side of the through hole 21, and a winding liquid adding channel 53 is provided inside the liquid adding tank 5;

[0030] Furthermore, a limit plate 31 is vertically provided at the end of the sealing plug 3, and the diameter of the limit plate 31 is larger than the outer diameter of the slot 22. When the sealing plug 3 seals the through hole 21, the limit plate 31 limits and locks the sealing plug 3 in the axial position, and the limit plate 31 blocks the slot 22, thereby protecting the slot 22.

[0031] The principle of the utility model is: see attached Figure 1-2 When in use, the medium enters through the inlet channel 12, passes through the valve core hole 111 of the valve ball 11, and then flows out from the outlet channel 13. When it is necessary to switch to another medium flow, the previous medium residue needs to be cleared, and the valve shaft 14 is rotated to drive the valve ball 11 to rotate.

[0032] See attached Figure 3-6At this time, the valve is closed, and the valve ball 11 rotates so that the valve core hole 111 is aligned with the through hole 21. At this time, the sealing plug 3 is removed to open the through hole 21, and the brush rod 41 is extended into the valve core hole 111 through the through hole 21. The bristles 411 abut against the inner wall of the valve core hole 111, and the connecting plate 42 is clamped with the clamping groove 22 through the clamping block 421. The connecting plate 42 is rotated, and the clamping block 421 rotates circumferentially along the clamping groove 22, so that the brush rod 41 rotates, and the bristles 411 clean the inner wall of the valve core hole 111, thereby brushing away the residual medium;

[0033] At the same time, cleaning liquid is injected into the liquid adding tank 5 through the liquid adding hole 23. The winding liquid adding channel 53 allows the liquid to flow slowly downward for addition. The cleaning liquid flows into the liquid adding hole 23 through the liquid outlet pipe 52. The inclined liquid adding hole 23 can slow down the flow rate of the cleaning liquid, allowing it to flow in slowly. The cleaning liquid flows toward the inside of the through hole 21 and can directly enter the valve core hole 111 under the action of kinetic energy. Under the clamping of the cleaning liquid, the cleaning efficiency of the residual medium can be improved. When the sealing plug 3 seals the through hole 21, the liquid adding hole 23 can be sealed.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A tank bottom ball valve, comprising a valve body (1), a valve ball (11) and a valve shaft (14) for driving the valve ball (11) to rotate, wherein the valve ball (11) is provided with a valve core hole (111), and the two ends of the valve body (1) are respectively provided with a water inlet channel and an outlet channel (13), characterized in that: The valve body (1) is provided with a protruding cleaning seat (2) at the outer wall of the valve ball (11), and the cleaning seat (2) is provided with a through hole (21) connected to the inside of the valve body (1). When the valve ball (11) rotates, the valve core hole (111) can be aligned and connected with the through hole (21); it also includes a cleaning component and a sealing plug (3) for sealing the through hole (21), and the cleaning component includes a connecting plate (42) and a brush rod (41), one end of the brush rod (41) is vertically fixedly connected to the connecting plate (42), and a plurality of bristles (411) are provided on the side wall of the brush rod (41), and the bristles (411) are flexible. The outer wall of the cleaning seat (2) is provided with an annular groove (22) around the through hole (21), and the connecting plate (42) is provided with a block (421) that is adapted to engage with the block (421), and the block (421) is circumferentially slidably matched with the groove (22).

2. A tank bottom ball valve according to claim 1, characterized in that: The through hole (21) is provided with an internal thread, and the sealing plug (3) is provided with an external thread and is threadedly connected to the through hole (21).

3. A tank bottom ball valve according to claim 1, characterized in that: A liquid filling hole (23) is provided on the upper side wall of the through hole (21); a liquid filling box (5) is provided above the cleaning seat (2); a liquid filling port (51) is provided on the top of the liquid filling box (5) and a liquid outlet pipe (52) is provided on the bottom; the liquid outlet pipe (52) is connected to the upper end of the liquid filling hole (23).

4. A tank bottom ball valve according to claim 3, characterized in that: The liquid adding hole (23) is arranged obliquely from top to bottom toward the inner side of the through hole (21).

5. A tank bottom ball valve according to claim 3 or 4, characterized in that: A winding liquid adding channel (53) is provided inside the liquid adding box (5).

6. A tank bottom ball valve according to claim 2, characterized in that: A limiting plate (31) is vertically provided at the end of the sealing plug (3), and the diameter of the limiting plate (31) is greater than the outer diameter of the clamping groove (22).

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