Multipurpose internal thread ball valve

Abstract

The invention discloses a multi-purpose internal thread ball valve, comprising a valve body, a left valve cover, a right valve cover, a valve stem and a ball body, an inlet channel is formed in the left valve cover, an outlet channel is formed in the right valve cover, an addition barrel with an addition chamber is provided on the outer wall of the left valve cover, and the addition chamber is communicated with the inlet channel, a spacer is slidably arranged in the inlet channel, the spacer comprises a plurality of mesh portions with different mesh densities, an adjustment component is arranged between the inlet channel and the spacer, a sealing portion and a control component for controlling the sealing portion to be adjusted to the position corresponding to the addition chamber are formed on the spacer, a sealing cylinder with an inner chamber is slidably arranged in the addition chamber, a driving component is provided on the addition barrel, an addition port communicated with the inner chamber is formed on the addition barrel, and a sealing cover is sealed on the addition port. The invention has the following advantages and effects: the invention can realize the convenient addition of medicaments and adjuvants, so as to be applicable to the fields of water treatment, chemical industry, etc., with wider application and lower cost.

Description

Technical Field

[0001] The invention relates to a valve, in particular to a multi-purpose internal thread ball valve. Background Art

[0002] The opening and closing parts of the ball valve are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction of the medium in the pipeline, but also close any channel and connect the other two channels. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] Ball valves are widely used in a wide range of fields, such as chemical industry, medicine, water treatment and other fields. In the fields of water treatment and chemical industry, additives or chemicals need to be added to the fluid medium, and there are several ways to add additives and chemicals. The additives and chemicals are powders, liquids or particles, and the particles are mainly added by slowly releasing them in contact with the medium. If the agent or additive is added directly into a large area of ​​water, uneven mixing will occur; therefore, there is a method of adding additives or chemicals into the fluid pipeline on the market. The additives and the mixed fluid enter the large area of ​​water together and are added evenly with the help of the fluid's impact force without the need for an additional mixing device.

[0004] However, there are no adding devices on the market that are specifically designed for installation on pipelines. All of them need to be customized, and the pipelines need to be cut and installed during the installation process. In addition, due to the different sizes of pipelines, the customized adding devices are very likely to be incompatible during the installation process, which greatly wastes installation time, labor and costs. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-purpose internal thread ball valve, which can realize the convenient addition of medicines and additives, so as to be applicable to the fields of water treatment, chemical industry, etc., with wider applications and lower costs.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a multi-purpose internal threaded ball valve, comprising a valve body, a left valve cover and a right valve cover respectively arranged on both sides of the valve body, a valve stem installed on the valve body, and a ball connected to the valve stem and located inside the valve body, an inlet channel is formed in the left valve cover, an outlet channel is formed in the right valve cover, an addition barrel with an addition chamber is fixedly arranged on the outer wall of the left valve cover, and the addition chamber is communicated with the inlet channel, a spacer is slidably arranged in the inlet channel to block the addition chamber, and the spacer includes multiple sections with A mesh portion with different mesh density, an adjusting component for adjusting the position of the adding chamber corresponding to the different mesh portions according to different fluid conditions is arranged between the inlet channel and the spacer, a sealing portion and a control component for controlling the sealing portion to be adjusted to the position corresponding to the adding chamber are formed on the spacer, a sealing cylinder with an inner cavity is sealingly and slidingly arranged in the adding chamber, a driving sealing cylinder is provided on the adding barrel to cooperate with the sealing portion to form a driving component for sealing and isolating the inner cavity from the inlet channel, an adding port communicating with the inner cavity is formed on the adding barrel, and a sealing cover is sealingly arranged on the adding port.

[0007] By adopting the above technical solution, the control component controls the sealing part to adjust to the position corresponding to the adding chamber, and then drives the sealing cylinder to cooperate with the sealing part through the driving component to form an isolation seal between the inner cavity and the inlet channel, and because the sealing cylinder and the adding chamber are sealed and slidable, the medium will not leak after opening the cover, and the additive or medicine can be added to the adding port. After the addition is completed, the adding port is sealed by the cover. Then the driving component drives the sealing cylinder away from the sealing part so that it does not interfere with the movement of the spacer. Under the action of the adjustment component, the spacer can adjust the position of the adding chamber corresponding to the different mesh parts according to different fluid conditions. The fluid enters the adding chamber through the mesh part and contacts with the granular additive or medicine, so that it is slowly released into the pipeline through the mesh part, so as to achieve the purpose of mixing. And through the mesh parts with different mesh densities to cooperate with different fluid conditions, on the premise of ensuring sufficient release and uniform mixing of the additive, the use time of the granular additive is extended to the greatest extent, and the excessive flushing of the granular additive by the fluid is reduced. This structure not only installs the ball valve on the pipeline but also has the function of adding, so there is no need to perform subsequent cutting and installation operations on the pipeline, which enables convenient addition of chemicals and additives with longer service life and better effect. It is suitable for water treatment, chemical industry and other fields with wider applications and lower cost.

[0008] It is further configured as follows: it includes a slide groove formed on the wall of the inlet channel and extending along its axis, and a slider that moves with the spacer sleeve and slides with the slide groove, and at least three groups of the slide groove and the slider are arranged around the center of the inlet channel. The adjustment component includes an excited baffle plate that moves with the spacer sleeve and a reset spring arranged in each slide groove for resetting the spacer sleeve, and a flow gap for medium flow is formed between the excited baffle plate and the spacer sleeve.

[0009] By adopting the above technical solution, the chute cooperates with the slider to guide the movement of the spacer sleeve to ensure the accuracy of the movement of the spacer sleeve. The fluid acts on the stimulated baffle to drive the movement of the spacer sleeve, thereby changing the position of the mesh part to correspond to the addition cavity. Then, in combination with the return spring, the force on the spacer sleeve is neutralized to make it in a floating movement state. In this way, the mesh part at different positions can be adjusted to face the addition cavity according to different fluids, achieving the purpose of automatic control.

[0010] It is further set that: the number of the mesh parts is two, namely the first mesh part and the second mesh part respectively. The mesh density of the first mesh part is greater than that of the second mesh part. When the valve is in the closed state, the first mesh part corresponds to the addition cavity; when the valve is in the open state, the second mesh part corresponds to the addition cavity.

[0011] By adopting the above technical solution, when the valve is in the closed state, the first mesh part corresponds to the addition cavity. At this time, the fluid in the inlet channel is relatively static. The first mesh part with a large mesh density can improve the outward penetration amount of the granular additive, enabling the additive to be mixed with the fluid more quickly and evenly, thereby stabilizing the addition amount of the additive to meet the required addition demand. When the valve is in the open state, the second mesh part corresponds to the addition cavity. At this time, the fluid in the inlet channel is in a flowing state. The second mesh part with a smaller mesh density can reduce the contact area between the granular additive and the fluid and reduce the erosion caused by the fluid to the granular additive. On the premise of ensuring the stable addition of the additive, the service life of the granular additive is prolonged, enabling it to have both the use effect and the service life.

[0012] It is further set that: the control component includes a telescopic member provided in each chute and having a driving cavity, and a pipeline connecting each driving cavity and extending out of the left valve cover. The telescopic member includes a left telescopic rod and a right telescopic rod that is hermetically and slidably fitted with the left telescopic rod. The driving cavity is formed between the left telescopic rod and the right telescopic rod. One end of the return spring is connected to the left telescopic rod or the right telescopic rod. The longitudinal cross-sectional shapes of the left telescopic rod and the right telescopic rod are both in the shape of a "匚". At least three of the pipelines are connected to a main pipeline.

[0013] By adopting the above technical solution, the return spring cooperates with the stimulated baffle to adjust the positions of the first mesh part and the second mesh part. When the position of the sealing part needs to be adjusted, the main pipeline intakes air, enters the driving cavity through the pipeline, and then drives the left telescopic rod and the right telescopic rod to move away from each other, and pushes the spacer ring to move through the return spring, realizing the control of the position of the sealing part.

[0014] It is further set that: the driving component includes a driving frame fixedly provided at the end of the sealing cylinder facing away from the spacer sleeve, and a driving screw passing through the addition barrel and abutting against the side of the driving frame facing away from the spacer sleeve. The driving screw is threadedly connected to the addition barrel, and a sealing ring is provided between the outer peripheral wall of the sealing cylinder and the wall of the addition cavity.

[0015] By adopting the above technical solution, the driving screw is rotated to drive the sealing cylinder to move toward the spacer ring through the driving frame, so that it is pressed against the sealing part to form a sealing fit.

[0016] It is further configured as follows: the second mesh portion is located on the side of the first mesh portion facing away from the valve body, and the sealing portion is located on the side of the first mesh portion facing the valve body; when the valve is in a closed state, the return spring is not subjected to the force of the fluid and makes the first mesh portion correspond to the adding chamber; when the valve is in an open state, the return spring is subjected to the force on the stimulated baffle and makes the second mesh portion correspond to the adding chamber.

[0017] By adopting the above technical solution, the reset spring cooperates with the stimulated baffle to change the positions of the first mesh portion and the second mesh portion corresponding to the adding chamber; when the valve is in a closed state, the stimulated baffle is not subjected to the force of the fluid, so that the reset spring is also not subjected to force, and at this time, the first mesh portion corresponds to the adding chamber; when the valve is in an open state, the stimulated baffle is subjected to the force of the fluid and compresses the reset spring, and at this time, the second mesh portion corresponds to the adding chamber, thereby achieving the purpose of automatic adjustment.

[0018] The valve stem is further configured as follows: a handle is connected to the valve stem, a locking block is provided on the handle for reciprocating sliding, a locking groove is provided on the valve body and the locking block enters the locking groove to limit the rotation of the handle, the locking block includes a main body and an insertion portion connected to the main body for inserting into the locking groove, the insertion portion includes two insertion strips arranged at intervals and a fusible support block arranged between the two insertion strips and fixedly connected to the two insertion strips, when the two insertion strips lose the support of the support block, the handle can be rotated to break the insertion strips.

[0019] By adopting the above technical solution, the locking block cooperates with the locking groove to limit the rotation of the handle, thereby avoiding accidental triggering by the staff. When a fire occurs in the application scenario of the valve, the high temperature melts the fusible support block, and the support of the support block is lost. Firefighters can control the valve through the handle as soon as they enter the fire scene, reducing unnecessary time waste.

[0020] It is further configured that: a plurality of turbulence rods are distributed on the inner peripheral wall of the spacer.

[0021] By adopting the above technical solution, when the fluid flows through the turbulator rod, the fluid is turbulent under the action of the turbulator rod, thereby achieving a better mixing effect.

[0022] In summary, the present invention has the following beneficial effects: the present invention can realize the convenient addition of medicines and auxiliary agents, thereby being applicable to the fields of water treatment, chemical industry, etc., with wider applications and lower costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural schematic diagram of an embodiment;

[0024] Figure 2 It is a partial structural schematic diagram of an embodiment;

[0025] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0026] Figure 4 It is a structural schematic diagram of another direction of the embodiment;

[0027] Figure 5 Schematic diagram of the structure of the locking block in the embodiment.

[0028] In the figure: 1, valve body; 2, left valve cover; 3, right valve cover; 4, valve stem; 5, ball; 6, inlet channel; 7, outlet channel; 8, adding chamber; 9, adding barrel; 10, spacer; 101, first mesh part; 102, second mesh part; 11, adjustment component; 111, stimulated baffle; 112, return spring; 12, sealing part; 13, control component; 131, drive chamber; 132, telescopic member; 1321, Left telescopic rod; 1322, right telescopic rod; 133, pipeline; 14, inner cavity; 15, sealing cylinder; 16, driving assembly; 161, driving frame; 162, driving screw; 17, adding port; 18, sealing cover; 19, slide groove; 20, slider; 21, handle; 22, locking block; 221, main body; 222, insert; 223, support block; 23, locking groove; 24, turbulence rod; 25, main pipe. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] refer to Figures 1 to 5A multi-purpose internal thread ball valve comprises a valve body 1, a left valve cover 2 and a right valve cover 3 respectively fixedly arranged on both sides of the valve body 1, a valve stem 4 installed on the valve body 1, and a ball 5 connected to the valve stem 4 and located inside the valve body 1. An inlet channel 6 is formed in the left valve cover 2, and an outlet channel 7 is formed in the right valve cover 3. An addition barrel 9 having an addition chamber 8 is fixedly arranged on the outer wall of the left valve cover 2, and the addition chamber 8 is communicated with the inlet channel 6. A spacer 10 is arranged in the inlet channel 6 to slide back and forth along its axial direction to block the addition chamber 8. The spacer 10 includes multiple mesh portions with different mesh densities along its moving direction. The number of mesh portions is two and they are respectively a first mesh portion 101 and a second mesh portion 102. The first mesh portion 101 and the second mesh portion 102 are arranged integrally. An adjustment component 11 is arranged between the inlet channel 6 and the spacer 10 to adjust the position of the addition chamber 8 corresponding to different mesh portions according to different fluid conditions. A sealing portion 12 and a control component 13 for controlling the sealing portion 12 to be adjusted to correspond to the position of the adding chamber 8 are formed on the spacer 10. A sealing cylinder 15 having an inner cavity 14 is sealingly and slidably arranged in the adding chamber 8. A driving sealing cylinder 15 is provided on the adding barrel 9 to cooperate with the sealing portion 12 to form a driving component 16 for sealing and isolating the inner cavity 14 from the inlet channel 6. An adding port 17 communicating with the inner cavity 14 is formed on the adding barrel 9. A sealing cover 18 is sealingly arranged on the adding port 17, and the sealing cover 18 is threadedly connected to the adding barrel 9.

[0031] The wall of the inlet channel 6 is provided with a slide groove 19 extending along its axis, and a slider 20 is integrally provided on the spacer 10 to slide with the slide groove 19. The slide of the spacer 10 in the inlet channel 6 is achieved by the cooperation between the slider 20 and the slide groove 19. There are at least three groups of slide grooves 19 and sliders 20 arranged around the center of the inlet channel 6, preferably three groups. The adjustment component 11 includes an excited baffle 111 fixedly arranged on the spacer 10 and a reset spring 112 arranged on each slide groove 19 for resetting the spacer 10. A flow gap for medium circulation is formed between the excited baffle 111 and the spacer 10. The mesh density of the first mesh part 101 is greater than that of the second mesh part 102. When the valve is in a closed state, the first mesh part 101 corresponds to the addition chamber 8; when the valve is in an open state, the second mesh part 102 corresponds to the addition chamber 8.

[0032] The control component 13 includes a telescopic member 132 disposed in each chute 19 and having a driving cavity 131, and a pipe 133 communicating with each driving cavity 131 and extending out of the left valve cover 2. The telescopic member 132 includes a left telescopic rod 1321 and a right telescopic rod 1322 that is in sealed sliding fit with the left telescopic rod 1321. The driving cavity 131 is formed between the left telescopic rod 1321 and the right telescopic rod 1322. One end of the return spring 112 is fixedly connected to the left telescopic rod 1321, and the other end is fixedly connected to the slider 20. The longitudinal cross-sectional shapes of the left telescopic rod 1321 and the right telescopic rod 1322 are both in a C shape. The pipe 133 passes through the left valve cover 2 and extends outward, and is fixedly connected between the pipe 133 and the left valve cover 2. A main pipe 25 is connected in series between the three pipes 133. The driving component 16 includes a driving frame 161 fixedly disposed at one end of the sealing cylinder 15 facing away from the spacer 10, and a driving screw 162 passing through the adding barrel 9 and abutting against a surface of the driving frame 161 facing away from the spacer 10. The driving screw 162 is threadedly connected to the adding barrel 9, and a sealing ring is provided between the outer peripheral wall of the sealing cylinder 15 and the wall of the adding cavity 8.

[0033] The second mesh portion 102 is located on the side of the first mesh portion 101 facing away from the valve body 1, and the sealing portion 12 is located on the side of the first mesh portion 101 facing the valve body 1. The sealing portion 12 is integrally provided with the first mesh portion 101. When the valve is in the closed state, the return spring 112 is not affected by the fluid force and makes the first mesh portion 101 correspond to the adding cavity 8. When the valve is in the open state, the return spring 112 is subjected to the force on the actuating baffle 111 and makes the second mesh portion 102 correspond to the adding cavity 8. A plurality of turbulence rods 24 are fixedly distributed on the inner peripheral wall of the spacer 10.

[0034] A handle 21 is fixedly connected to the valve stem 4. A locking block 22 is slidably sleeved on the handle 21. A locking groove 23 is formed on the valve body 1, and the locking block 22 enters the locking groove 23 to limit the rotation of the handle 21. The locking block 22 is located above the locking groove 23 and enters the locking groove 23 by its own weight. The locking block 22 includes a main body portion 221 and an insertion portion connected to the main body portion 221 for inserting into the locking groove 23. The insertion portion includes two insertion strips 222 arranged at intervals and a fusible support block 223 disposed between the two insertion strips 222 and fixedly connected to the two insertion strips 222. When the two insertion strips 222 lose the support of the support block 223, the handle 21 can be rotated to break the insertion strips 222. The insertion strips 222 are integrally provided with the main body portion 221 and are made of metal, and the material of the support block 223 is plastic.

[0035] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, 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 multi-purpose internally threaded ball valve, comprising a valve body (1), a left valve cover (2) and a right valve cover (3) respectively arranged on both sides of the valve body (1), a valve stem (4) mounted on the valve body (1), and a ball (5) connected to the valve stem (4) and located inside the valve body (1), wherein an inlet channel (6) is formed in the left valve cover (2) and an outlet channel (7) is formed in the right valve cover (3), and the characteristics are: An addition barrel (9) with an addition chamber (8) is fixedly arranged on the outer wall of the left valve cover (2), and the addition chamber (8) communicates with the inlet flow channel (6). A spacer sleeve (10) for blocking the addition chamber (8) is slidably arranged in the inlet flow channel (6). The spacer sleeve (10) includes multiple mesh portions with different mesh densities along its moving direction. An adjusting assembly (11) for adjusting the position of the corresponding addition chamber (8) of different mesh portions according to different fluid conditions is arranged between the inlet flow channel (6) and the spacer sleeve (10). A sealing portion (12) is formed on the spacer sleeve (10), and a control assembly (13) for adjusting the sealing portion (12) to the position corresponding to the addition chamber (8) is provided. A sealing cylinder (15) with an inner cavity (14) is hermetically slidably arranged in the addition chamber (8). A driving assembly (16) for driving the sealing cylinder (15) to cooperate with the sealing portion (12) to hermetically isolate the inner cavity (14) from the inlet flow channel (6) is arranged on the addition barrel (9). An addition port (17) communicating with the inner cavity (14) is formed on the addition barrel (9), and a sealing cover (18) is hermetically arranged on the addition port (17). It includes a sliding groove (19) formed on the wall of the inlet flow channel (6) and extending along its axis, and a sliding block (20) that moves with the spacer sleeve (10) and is slidably engaged with the sliding groove (19). At least three groups of the sliding groove (19) and the sliding block (20) are arranged around the center of the inlet flow channel (6). The adjusting assembly (11) includes a stimulated baffle (111) that moves with the spacer sleeve (10) and a return spring (112) arranged in each sliding groove (19) for resetting the spacer sleeve (10). A flow-through gap for the medium to flow through is formed between the stimulated baffle (111) and the spacer sleeve (10). The number of the mesh portions is two, which are respectively a first mesh portion (101) and a second mesh portion (102). The mesh density of the first mesh portion (101) is greater than that of the second mesh portion (102). When the valve is in the closed state, the first mesh portion (101) corresponds to the addition chamber (8); when the valve is in the open state, the second mesh portion (102) corresponds to the addition chamber (8). The control assembly (13) includes a telescopic member (132) arranged in each sliding groove (19) and having a driving chamber (131), and a pipe (133) that communicates with each driving chamber (131) and extends out of the left valve cover (2). The telescopic member (132) includes a left telescopic rod (1321) and a right telescopic rod (1322) that is hermetically slidably engaged with the left telescopic rod (1321). The driving chamber (131) is formed between the left telescopic rod (1321) and the right telescopic rod (1322). One end of the return spring (112) is connected to the left telescopic rod (1321) or the right telescopic rod (1322). The longitudinal cross-sectional shapes of the left telescopic rod (1321) and the right telescopic rod (1322) are both in a C shape. A main pipe (25) is connected between at least three of the pipes (133).

2. The multi-purpose internally threaded ball valve according to claim 1, characterized in that: The driving assembly (16) comprises a driving frame (161) fixedly arranged on the end of the sealing cylinder (15) facing away from the spacer (10), and a driving screw (162) passing through the adding barrel (9) and abutting against the side of the driving frame (161) facing away from the spacer (10), wherein the driving screw (162) is threadedly connected to the adding barrel (9), and a sealing ring is provided between the outer peripheral wall of the sealing cylinder (15) and the wall of the adding chamber (8).

3. The multi-purpose internally threaded ball valve according to claim 1, characterized in that: The second mesh portion (102) is located on the side of the first mesh portion (101) facing away from the valve body (1), and the sealing portion (12) is located on the side of the first mesh portion (101) facing the valve body (1). When the valve is in a closed state, the return spring (112) is not subjected to the force of the fluid and makes the first mesh portion (101) correspond to the adding chamber (8); when the valve is in an open state, the return spring (112) is subjected to the force on the stimulated baffle (111) and makes the second mesh portion (102) correspond to the adding chamber (8).

4. The multi-purpose internally threaded ball valve according to claim 1, characterized in that: The valve stem (4) is connected to a handle (21), and a locking block (22) is provided on the handle (21) for reciprocating sliding. A locking groove (23) is provided on the valve body (1), and the locking block (22) enters the locking groove (23) to limit the rotation of the handle (21). The locking block (22) comprises a main body (221) and an insertion portion connected to the main body (221) for inserting into the locking groove (23). The insertion portion comprises two insertion strips (222) arranged at intervals and a fusible support block (223) arranged between the two insertion strips (222) and fixedly connected to the two insertion strips (222). When the two insertion strips (222) lose the support of the support block (223), the handle (21) can be rotated to break the insertion strips (222).

5. The multi-purpose internally threaded ball valve according to claim 1, characterized in that: A plurality of turbulence rods (24) are distributed on the inner peripheral wall of the spacer (10).

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