Pressure reducing valve, flow dividing mechanism, semiconductor ultrapure water system and use method

Abstract

The invention belongs to the technical field of engineering elements, and particularly relates to a valve, in particular to a pressure reducing valve, a flow dividing mechanism, a semiconductor ultrapure water system and a using method. The piston mechanism is arranged in the valve body in a penetrating mode. The shunting mechanism is arranged at the bottom of the piston mechanism; the piston mechanism is suitable for opening or closing the valve body, and the flow dividing mechanism is suitable for reducing the impact force of water flow on the disc in the flow dividing mechanism when the piston mechanism opens the valve body, so that the impact force of the water flow on the disc is reduced, the service life of the disc is prolonged, and the service life of the pressure reducing valve is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering components, and specifically relates to valves, and more particularly to a pressure reducing valve, a flow dividing mechanism, a semiconductor ultrapure water system and a use method thereof. Background Art

[0002] The pressure reducing valve is provided with a liquid inlet channel, which is connected with a sleeve in the pressure reducing valve. A piston column is passed through the sleeve, and a disc is provided at the bottom of the piston column. The top surface of the disc contacts the bottom surface of the sleeve to block the liquid entering the sleeve from the liquid inlet channel, so as to close the pressure reducing valve. When the piston column moves downward to separate the disc from the bottom surface of the sleeve, the liquid can enter the pressure reducing valve. However, the impact of the liquid flow on the disc will cause damage to the disc, resulting in a decrease in the sealing effect of the disc.

[0003] Therefore, due to the technical problem that the disc is damaged due to water flow impact, it is necessary to design a new pressure reducing valve, diversion mechanism, semiconductor ultrapure water system and use method.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide a pressure reducing valve, a diversion mechanism, a semiconductor ultrapure water system and a method of use.

[0006] In a first aspect, an embodiment of the present disclosure provides a pressure reducing valve, comprising: Valve body, piston mechanism and diverter mechanism; The piston mechanism is disposed in the valve body; The flow dividing mechanism is arranged at the bottom of the piston mechanism; The piston mechanism is suitable for opening or closing the valve body, and the diverter mechanism is suitable for reducing the impact force of water flow on the disc in the diverter mechanism when the piston mechanism opens the valve body.

[0007] In an optional embodiment, the diversion mechanism includes: a disc; A connecting column is provided at the center of the top surface of the disk, and the connecting column is connected to the bottom of the piston column in the piston mechanism; A plurality of strip grooves are arranged on the top surface of the disc, and the length direction of the strip grooves is arranged along the radial direction of the disc; A movable plate is slidably arranged in the strip groove, and an end of the movable plate extends from the inner side wall of the strip groove into the interior of the disc; The movable plate is provided with a plurality of first through holes at equal intervals; A plurality of second through holes are formed on the inner bottom surface of the strip-shaped groove, the second through holes are connected to the bottom surface of the disc, and the second through holes correspond to the first through holes; A ring body is arranged on the top surface of the disk near the edge of the disk, and the ring body is arranged along the circumference of the disk; A third annular groove is formed on the top surface of the disc, and the third annular groove is arranged around the connecting column. The strip groove is farther away from the connecting column than the third annular groove.

[0008] In an optional embodiment, a column is provided on the top surface of the movable plate, and the column extends out of the top surface of the strip groove; The top of the column is chamfered at an edge close to the connecting column; The side of the column away from the connecting column is connected to the inner wall of the first sealing ring, that is, the inner wall of the first sealing ring is connected to the side of all the columns away from the connecting column.

[0009] In an optional embodiment, the valve body includes: a valve seat and a top cover; A diaphragm is provided between the top surface of the valve seat and the bottom surface of the top cover; The top of the piston mechanism is located in the top cover, the bottom of the piston mechanism is located in the valve seat, and the piston mechanism passes through the diaphragm; The valve seat is provided with a liquid inlet channel and a liquid outlet channel.

[0010] In an optional embodiment, a sleeve is vertically arranged in the valve seat, and the outer wall of the sleeve is connected to the inner wall of the valve seat through a connecting ring, and the connecting ring divides the internal chamber of the valve seat into two parts, an upper part and an lower part; The upper chamber is between the top surface of the connecting ring and the bottom surface of the diaphragm, and the lower chamber is between the bottom surface of the connecting ring and the inner bottom surface of the valve seat; The liquid inlet channel is in communication with the interior of the sleeve; The liquid outlet channel is communicated with the lower chamber.

[0011] In an optional embodiment, the piston mechanism comprises: a piston column and a diaphragm pressing block; The diaphragm pressing block is arranged on the bottom surface of the diaphragm; The top of the piston rod is inserted into the bottom surface of the diaphragm pressing block; The piston column passes through the sleeve, and the outer wall of the piston column contacts the inner wall of the sleeve; The bottom surface of the piston rod extends out from the bottom surface of the sleeve; The connecting column is inserted into the bottom surface of the piston column, and the connecting column is connected to the piston column; The column is farther away from the outer wall of the connecting column than the outer wall of the piston column; A first annular groove is provided on the bottom surface of the sleeve, and when the column is inserted into the first annular groove, the first sealing ring is inserted into the first annular groove, and at this time, the inner wall of the ring body contacts the outer wall of the sleeve; A second annular groove is formed on the side wall of the piston column along the circumference of the piston column; The bottom surface of the piston column is provided with a convex ring, the convex ring is adapted to the third annular groove, and the side wall of the convex ring is provided with a groove corresponding to the moving plate.

[0012] In an optional embodiment, the piston mechanism further comprises: an adjusting screw, an upper base, a lower base and an adjusting spring; The lower base is arranged on the top surface of the diaphragm; The lower base is arranged in the top cover; The upper base is arranged above the lower base, and the upper base is arranged inside the top cover; The bottom end of the adjusting screw is connected to the upper base, and the top end of the adjusting screw extends out of the top surface of the top cover; The adjusting screw is threadedly connected to the top cover; The adjusting spring is arranged between the upper base and the lower base; The lower base, the diaphragm, the diaphragm pressing block and the piston column are connected by a connecting screw; The degree of deformation of the adjusting spring is adjusted by turning the adjusting screw.

[0013] In a second aspect, the embodiment of the present disclosure further provides a flow diversion mechanism for the above-mentioned pressure reducing valve, comprising: A disc, wherein a connecting column is arranged at the center of the top surface of the disc, and the connecting column is connected to the bottom of the piston column in the piston mechanism; A plurality of strip grooves are arranged on the top surface of the disc, and the length direction of the strip grooves is arranged along the radial direction of the disc; A movable plate is slidably arranged in the strip groove, and an end of the movable plate extends from the inner side wall of the strip groove into the interior of the disc; The movable plate is provided with a plurality of first through holes at equal intervals; A plurality of second through holes are formed on the inner bottom surface of the strip-shaped groove, the second through holes are connected to the bottom surface of the disc, and the second through holes correspond to the first through holes; A ring body is arranged on the top surface of the disk near the edge of the disk, and the ring body is arranged along the circumference of the disk.

[0014] In a third aspect, the present disclosure also provides a semiconductor ultrapure water system using the above-mentioned pressure reducing valve, including: The pressure reducing valve is connected to the water inlet pipe and the water outlet pipe.

[0015] In a fourth aspect, the present disclosure also provides a method for using the pressure reducing valve, including: The piston mechanism is suitable for opening or closing the valve body, and the diverter mechanism is suitable for reducing the impact force of water flow on the disc in the diverter mechanism when the piston mechanism opens the valve body.

[0016] The beneficial effect of the present invention is that the present invention includes a pressure reducing valve, which includes: a valve body, a piston mechanism and a diverter mechanism; the piston mechanism is inserted into the valve body; the diverter mechanism is arranged at the bottom of the piston mechanism; the piston mechanism is suitable for opening or closing the valve body, and the diverter mechanism is suitable for reducing the impact force of water flow on the disc in the diverter mechanism when the piston mechanism opens the valve body, thereby reducing the impact of water flow on the disc, extending the service life of the disc, and thereby extending the service life of the pressure reducing valve.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a pressure reducing valve provided in an embodiment of the present disclosure; Figure 2 A cross-sectional view of a pressure reducing valve provided in an embodiment of the present disclosure; Figure 3 For the embodiment of the present disclosure Figure 2 A magnified schematic diagram of part A; Figure 4 A schematic diagram of the structure of a diversion mechanism provided in an embodiment of the present disclosure; Figure 5 A schematic diagram of the structure of a piston mechanism provided in an embodiment of the present disclosure; Figure 6 A schematic diagram of the position of a diaphragm pressing block provided in an embodiment of the present disclosure.

[0021] In the figure: 1 valve body, 11 valve seat, 12 top cover, 13 diaphragm, 14 liquid inlet channel, 15 liquid outlet channel, 16 sleeve, 161 connecting ring, 17 upper chamber, 18 lower chamber, 19 first annular groove; 2 piston mechanism, 21 piston column, 211 connecting screw, 212 second annular groove, 213 convex ring, 214 groove, 22 diaphragm pressing block, 23 adjusting screw, 24 upper base, 25 lower base, 26 adjusting spring; 3 flow dividing mechanism, 31 disc, 311 connecting column, 312 strip groove, 313 moving plate, 314 first through hole, 315 second through hole, 32 ring body, 33 third annular groove, 34 column body, 35 first sealing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0024] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0025] like Figure 1As shown, at least one disclosed embodiment provides a pressure reducing valve, comprising: a valve body 1, a piston mechanism 2 and a diverter mechanism 3; the piston mechanism 2 is penetrated in the valve body 1; the diverter mechanism 3 is arranged at the bottom of the piston mechanism 2; the piston mechanism 2 is suitable for opening or closing the valve body 1, and the diverter mechanism 3 is suitable for reducing the impact force of water flow on the disc 31 in the diverter mechanism 3 when the piston mechanism 2 opens the valve body 1; the impact of water flow on the disc 31 is reduced, the service life of the disc 31 is extended, and the service life of the pressure reducing valve is extended.

[0026] like Figure 3 and Figure 4 As shown, in an optional embodiment, the diversion mechanism 3 includes: a disk 31; a connecting column 311 is provided at the center of the top surface of the disk 31, and the connecting column 311 is connected to the bottom of the piston column 21 in the piston mechanism 2; a plurality of strip grooves 312 are provided on the top surface of the disk 31, and the length direction of the strip grooves 312 is arranged along the radial direction of the disk 31; a moving plate 313 is slidably provided in the strip grooves 312, and the end of the moving plate 313 extends from the inner side wall of the strip groove 312 into the inside of the disk 31, and the moving plate 313 can move, and the moving direction is as shown in FIG. Figure 4As shown in FIG. 5 , the movable plate 313 is provided with a plurality of first through holes 314 at equal intervals; the inner bottom surface of the strip groove 312 is provided with a plurality of second through holes 315, the second through holes 315 are connected to the bottom surface of the disc 31, and the second through holes 315 correspond to the first through holes 314; a ring body 32 is provided on the top surface of the disc 31 near the edge of the disc 31, and the ring body 32 is arranged along the circumference of the disc 31; a third annular groove 33 is provided on the top surface of the disc 31, and the third annular groove 33 is arranged around the connecting column 311, and ... first through holes 314, and the second through holes 315 are connected to the first through holes 314; a ring body 32 is provided on the top surface of the disc 31 near the edge of the disc 31, and the ring body 32 is arranged along the circumference of the disc 31; a third annular groove 33 is provided on the top surface of the disc 31, and the third annular groove 33 is arranged around the connecting column 311, and the strip groove The third annular groove 33 is farther away from the connecting column 311; when the piston mechanism 2 closes the valve body 1, that is, at this time, the liquid cannot flow through the valve body 1, the first through hole 314 and the second through hole 315 are staggered, the first through hole 314 and the second through hole 315 are completely blocked, and the first through hole 314 and the second through hole 315 cannot allow water to flow through, ensuring the sealing effect of the disc 31 on the sleeve 16; when the piston mechanism 2 opens the valve body 1, that is, at this time, the liquid can flow through the valve body 1, the first through hole 314 is aligned with the second through hole 315, so that the liquid can flow through the first through hole 31 4 and the second through hole 315, the liquid is diverted when flowing into the valve body 1, part of the liquid impacts the surface of the disc 31, and part of the liquid directly enters the lower chamber 18 through the first through hole 314 and the second through hole 315, reducing the impact on the disc 31, avoiding the disc 31 from being damaged by the impact of the water flow, extending the service life of the pressure reducing valve, and avoiding the pressure reducing valve from being damaged by the impact of the liquid pressure; the movable plate 313 and the inner wall of the disc 31 can be connected by a reset spring, and the movable plate 313 can be driven to move by the reset spring, so that the first through hole 314 and the second through hole 315 can be aligned, and the reset spring It can be set at a position away from the connecting column 311 in the disc 31. When the column 34 is not hindered by other parts, the return spring can enable the movable plate 313 to be inserted into the third annular groove 33, so that the movable plate 313 can be inserted into the groove 214 starting from the convex ring 213 already located in the third annular groove 33. When the connecting column 311 is installed on the piston column 21, the movable plate 313 can be manually moved away from the third annular groove 33, so that the convex ring 213 can be smoothly inserted into the third annular groove 33. After the installation of the connecting column 311 is completed, the movable plate 313 is released.

[0027] In an optional embodiment, a column 34 is provided on the top surface of the movable plate 313, and the column 34 extends out of the top surface of the strip groove 312; the top of the column 34 is chamfered at an edge close to the connecting column 311; the side of the column 34 away from the connecting column 311 is connected to the inner wall of the first sealing ring 35, that is, the inner wall of the first sealing ring 35 is connected to the side of all the columns 34 away from the connecting column 311; when the column 34 is inserted into the first annular groove 19, it can drive the first sealing ring 35 to be inserted into the first annular groove 19, and the sealing effect is ensured by the first sealing ring 35 to prevent liquid from flowing into the valve body 1 when the valve body 1 is closed; the chamfer on the column 34 can ensure that the column 34 is smoothly inserted into the first annular groove 19, and the edge of the first annular groove 19 can be a slope, and the chamfer on the column 34 contacts the slope and can be guided by the slope to be inserted into the first annular groove 19.

[0028] In an optional embodiment, the valve body 1 includes: a valve seat 11 and a top cover 12; a diaphragm 13 is arranged between the top surface of the valve seat 11 and the bottom surface of the top cover 12; the top of the piston mechanism 2 is located in the top cover 12, the bottom of the piston mechanism 2 is located in the valve seat 11, and the piston mechanism 2 passes through the diaphragm 13; a liquid inlet channel 14 and a liquid outlet channel 15 are opened on the valve seat 11; the piston mechanism 2 can block the liquid inlet channel 14 to close the valve seat 11, that is, the valve body 1 is closed; the top cover 12 can be used to connect the piston mechanism 2 and make the piston mechanism 2 adjustable.

[0029] like Figure 2 As shown, in an optional embodiment, a sleeve 16 is vertically arranged in the valve seat 11, and the outer wall of the sleeve 16 is connected to the inner wall of the valve seat 11 through a connecting ring 161, and the connecting ring 161 divides the internal chamber of the valve seat 11 into an upper and lower part; the upper chamber 17 is between the top surface of the connecting ring 161 and the bottom surface of the diaphragm 13, and the lower chamber 18 is between the bottom surface of the connecting ring 161 and the inner bottom surface of the valve seat 11; the liquid inlet channel 14 is connected to the interior of the sleeve 16; the liquid outlet channel 15 is connected to the lower chamber 18; a plurality of third through holes are opened on the connecting ring 161 to connect the upper chamber 17 with the lower chamber 18.

[0030] like Figure 5 and Figure 6As shown, in an optional embodiment, the piston mechanism 2 includes: a piston column 21 and a diaphragm pressing block 22; the diaphragm pressing block 22 is arranged on the bottom surface of the diaphragm 13; the top of the piston column 21 is inserted into the bottom surface of the diaphragm pressing block 22; the piston column 21 passes through the sleeve 16, and the outer wall of the piston column 21 contacts the inner wall of the sleeve 16; the bottom surface of the piston column 21 extends out from the bottom surface of the sleeve 16; the connecting column 311 is inserted into the bottom surface of the piston column 21, and the connecting column 311 is connected to the piston column 21; the column body 34 is farther away from the outer wall of the connecting column 311 than the outer wall of the piston column 21; a first annular groove 19 is provided on the bottom surface of the sleeve 16, When the column 34 is inserted into the first annular groove 19, the first sealing ring 35 is inserted into the first annular groove 19. At this time, the inner wall of the ring body 32 contacts the outer wall of the sleeve 16 to form a U-shaped sealing structure; a second annular groove 212 is provided on the side wall of the piston column 21 along the circumference of the piston column 21; a convex ring 213 is provided on the bottom surface of the piston column 21, and the convex ring 213 is adapted to the third annular groove 33, and a groove 214 corresponding to the movable plate 313 is provided on the side wall of the convex ring 213; the convex ring 213 can be inserted into the third annular groove 33, so that the groove 214 corresponds to the movable plate 313, and when the valve body 1 is opened, the movable plate 313 can be inserted into the corresponding groove 214; the second annular groove 212 of the piston column 21 is provided along the circumference of the piston column 21; the bottom surface of the piston column 21 is provided with a convex ring 213, and the convex ring 213 is adapted to the third annular groove 33, and the side wall of the convex ring 213 is provided with a groove 214 corresponding to the movable plate 313; the convex ring 213 can be inserted into the third annular groove 33, so that the groove 214 corresponds to the movable plate 313, and when the valve body 1 is opened, the movable plate 313 can be inserted into the corresponding groove 214; When the annular groove 212 is completely located in the sleeve 16 and the liquid inlet channel 14 is aligned with the second annular groove 212, the liquid in the liquid inlet channel 14 cannot flow into the lower chamber 18. At this time, the valve body 1 is in a closed state. As the water pressure increases, the water pressure causes the piston column 21 to move downward, so that part of the second annular groove 212 extends out of the sleeve 16 from the bottom surface of the sleeve 16. A gap formed by the inner wall of the sleeve 16 and the second annular groove 212 appears at the bottom of the sleeve 16, so that the liquid can flow into the lower chamber 18, and then the liquid flows out of the lower chamber 18 through the liquid outlet channel 15, thereby realizing the opening of the valve body 1; the connecting column 311 and the piston column 21 can be connected by a threaded connection, which is convenient for disassembling the disc 31 and When the liquid in 14 flows into the lower chamber 18, the liquid will impact the disc 31, causing the threaded connection between the piston column 21 and the connecting column 311 to loosen. After the convex ring 213 is inserted into the third annular groove 33, when the piston column 21 moves downward to make the column 34 disengage from the first annular groove 19, the movable plate 313 is inserted into the corresponding groove 214 through the return spring, thereby increasing the stability of the connection between the disc 31 and the piston column 21, and preventing the thread from loosening by the cooperation between the movable plate 313 and the groove 214; when the liquid enters the lower chamber 18, it will impact the column 34, so that the liquid is dispersed, preventing all the liquid from directly impacting the disc 31, reducing the impact force on the disc 31, and preventing the disc 31 from being damaged due to the impact.

[0031] In an optional embodiment, the piston mechanism 2 further includes: an adjusting screw 23, an upper base 24, a lower base 25 and an adjusting spring 26; the lower base 25 is arranged on the top surface of the diaphragm 13; the lower base 25 is arranged in the top cover 12; the upper base 24 is arranged above the lower base 25, and the upper base 24 is arranged in the top cover 12; the bottom end of the adjusting screw 23 is connected to the upper base 24, and the top end of the adjusting screw 23 extends out of the top surface of the top cover 12; the adjusting screw 23 is threadedly connected to the top cover 12; the adjusting spring 26 is arranged in a threaded manner; the adjusting screw 23 is threadedly connected to the top cover 12; the adjusting spring 26 is threadedly connected to the top cover 12 ... spring 26 is threadedly connected to the top cover 12; the adjusting spring 26 is threadedly connected to the top cover 12; the adjusting spring 26 is threadedly connected to the top cover The spring 26 is arranged between the upper base 24 and the lower base 25; the lower base 25, the diaphragm 13, the diaphragm pressure block 22 and the piston column 21 are connected by a connecting screw 211, and the connection method can be a threaded connection to facilitate disassembly and assembly; the deformation degree of the adjusting spring 26 is adjusted by rotating the adjusting screw 23, for example, the adjusting spring 26 is in a stretched state, and the force of the adjusting spring 26 to restore the deformation keeps the column 34 inserted into the first annular groove 19, so that the second annular groove 212 is completely in the sleeve 16, keeping the liquid inlet channel 14 blocked, and the valve body 1 is in a closed state.

[0032] In the initial state, the cylinder 34 is inserted into the first annular groove 19, and the first sealing ring 35 is inserted into the first annular groove 19 to achieve a sealing effect. The inner wall of the ring body 32 contacts the outer wall of the sleeve 16. At this time, the second annular groove 212 is completely in the sleeve 16, and the first through hole 314 is staggered with the second through hole 315. When the pressure of the liquid in the liquid inlet channel 14 gradually increases, the piston column 21 will be squeezed downward by the water pressure, and the second annular groove 212 gradually extends from the bottom surface of the sleeve 16. The disc 31 moves downward with the piston column 21, and the cylinder 34 drives The first sealing ring 35 moves out of the first annular groove 19, and the inner wall of the ring body 32 is separated from the outer wall of the sleeve 16. A gap appears between the inner wall of the ring body 32 and the outer wall of the sleeve 16, and the liquid can flow into the lower chamber 18. As the column 34 moves out of the first annular groove 19, the return spring drives the moving plate 313 to move so that the first through hole 314 is aligned with the second through hole 315. When the liquid flows into the lower chamber 18, part of the liquid flows into the lower chamber 18 through the first through hole 314 and the second through hole 315, and part of the liquid flows from the inner wall of the ring body 32 and the sleeve 16. 16, the liquid enters the lower chamber 18, and the first through hole 314 is aligned with the second through hole 315, so that the liquid can flow through the first through hole 314 and the second through hole 315, so that the liquid is diverted when it flows into the valve body 1, part of the liquid impacts the surface of the disc 31, and part of the liquid directly passes through the first through hole 314 and the second through hole 315 into the lower chamber 18, reducing the impact on the disc 31, avoiding the disc 31 from being damaged by the impact of the water flow, extending the service life of the pressure reducing valve, and avoiding the pressure reducing valve being compressed by the liquid. When the piston column 21 moves downward and the column 34 is disengaged from the first annular groove 19, the return spring allows the movable plate 313 to be inserted into the corresponding groove 214, thereby increasing the stability of the connection between the disc 31 and the piston column 21, and preventing the thread from loosening through the cooperation between the movable plate 313 and the groove 214; when the liquid enters the lower chamber 18, it impacts the column 34, so that the liquid is dispersed, preventing all the liquid from directly impacting the disc 31, reducing the impact force on the disc 31, and preventing the disc 31 from being damaged by the impact.

[0033] At least one other disclosed embodiment further provides a flow dividing mechanism 3 for the pressure reducing valve, comprising: a disk 31, a connecting column 311 is arranged at the center of the top surface of the disk 31, and the connecting column 311 is connected to the bottom of the piston column 21 in the piston mechanism 2; a plurality of strip grooves 312 are arranged on the top surface of the disk 31, and the length direction of the strip grooves 312 is arranged along the radial direction of the disk 31; a moving plate 313 is slidably arranged in the strip grooves 312, and the moving plate 313 is slidably arranged in the strip grooves 312. The end of the strip groove 312 extends from the inner side wall of the disc 31; a plurality of first through holes 314 are equidistantly formed on the movable plate 313; a plurality of second through holes 315 are formed on the inner bottom surface of the strip groove 312, the second through holes 315 are connected to the bottom surface of the disc 31, and the second through holes 315 correspond to the first through holes 314; a ring body 32 is provided on the top surface of the disc 31 near the edge of the disc 31, and the ring body 32 is arranged along the circumference of the disc 31.

[0034] At least one other disclosed embodiment further provides a semiconductor ultrapure water system using the above-mentioned pressure reducing valve, including: the pressure reducing valve is connected to a water inlet pipe and a water outlet pipe.

[0035] At least one other disclosed embodiment also provides a method for using the above-mentioned pressure reducing valve, including: the piston mechanism 2 is suitable for opening or closing the valve body 1, and the diverter mechanism 3 is suitable for reducing the impact force of the water flow on the disc 31 in the diverter mechanism 3 when the piston mechanism 2 opens the valve body 1.

[0036] In summary, the present invention includes a pressure reducing valve, which includes: a valve body 1, a piston mechanism 2 and a diverter mechanism 3; the piston mechanism 2 is inserted into the valve body 1; the diverter mechanism 3 is arranged at the bottom of the piston mechanism 2; the piston mechanism 2 is suitable for opening or closing the valve body 1, and the diverter mechanism 3 is suitable for reducing the impact force of water flow on the disc 31 in the diverter mechanism 3 when the piston mechanism 2 opens the valve body 1, thereby reducing the impact of water flow on the disc 31, extending the service life of the disc 31, and thus extending the service life of the pressure reducing valve.

[0037] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0039] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0040] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pressure reducing valve, characterized in that: include: A valve body (1), a piston mechanism (2) and a flow dividing mechanism (3); The piston mechanism (2) is disposed inside the valve body (1); The flow dividing mechanism (3) is arranged at the bottom of the piston mechanism (2); The piston mechanism (2) is suitable for opening or closing the valve body (1), and the diverter mechanism (3) is suitable for reducing the impact force of water flow on the disc (31) in the diverter mechanism (3) when the piston mechanism (2) opens the valve body (1).

2. The pressure reducing valve according to claim 1, characterized in that: The flow dividing mechanism (3) comprises: a disc (31); A connecting column (311) is provided at the center of the top surface of the disk (31), and the connecting column (311) is connected to the bottom of the piston column (21) in the piston mechanism (2); A plurality of strip-shaped grooves (312) are arranged on the top surface of the disc (31), and the length direction of the strip-shaped grooves (312) is arranged along the radial direction of the disc (31); A movable plate (313) is slidably disposed in the strip-shaped groove (312), and an end portion of the movable plate (313) extends from the inner side wall of the strip-shaped groove (312) into the interior of the disc (31); The movable plate (313) is provided with a plurality of first through holes (314) at equal intervals; A plurality of second through holes (315) are provided on the inner bottom surface of the strip-shaped groove (312), the second through holes (315) are in communication with the bottom surface of the disc (31), and the second through holes (315) correspond to the first through holes (314); A ring body (32) is arranged on the top surface of the disk (31) near the edge of the disk (31), and the ring body (32) is arranged along the circumference of the disk (31); A third annular groove (33) is provided on the top surface of the disc (31), the third annular groove (33) is arranged around the connecting column (311), and the strip groove (312) is farther away from the connecting column (311) than the third annular groove (33); When the second through hole (315) is aligned with the first through hole (314), part of the liquid directly passes through the first through hole (314) and the second through hole (315) and enters the lower chamber (18).

3. The pressure reducing valve according to claim 2, characterized in that: A column (34) is provided on the top surface of the movable plate (313), and the column (34) extends out of the top surface of the strip-shaped groove (312); The top of the column (34) is chamfered near the edge of the connecting column (311); The side of the column (34) away from the connecting column (311) is connected to the inner wall of the first sealing ring (35), that is, the inner wall of the first sealing ring (35) is connected to the side of all the columns (34) away from the connecting column (311).

4. The pressure reducing valve according to claim 3, characterized in that: The valve body (1) comprises: a valve seat (11) and a top cover (12); A diaphragm (13) is provided between the top surface of the valve seat (11) and the bottom surface of the top cover (12); The top of the piston mechanism (2) is located in the top cover (12), the bottom of the piston mechanism (2) is located in the valve seat (11), and the piston mechanism (2) passes through the diaphragm (13); The valve seat (11) is provided with a liquid inlet channel (14) and a liquid outlet channel (15).

5. The pressure reducing valve according to claim 4, characterized in that: A sleeve (16) is vertically arranged in the valve seat (11), the outer wall of the sleeve (16) is connected to the inner wall of the valve seat (11) via a connecting ring (161), and the connecting ring (161) divides the internal chamber of the valve seat (11) into two upper and lower parts; An upper chamber (17) is formed between the top surface of the connecting ring (161) and the bottom surface of the diaphragm (13), and a lower chamber (18) is formed between the bottom surface of the connecting ring (161) and the inner bottom surface of the valve seat (11); The liquid inlet channel (14) is in communication with the interior of the sleeve (16); The liquid outlet channel (15) is in communication with the lower chamber (18).

6. The pressure reducing valve according to claim 5, characterized in that: The piston mechanism (2) comprises: a piston column (21) and a diaphragm pressing block (22); The diaphragm pressing block (22) is arranged on the bottom surface of the diaphragm (13); The top of the piston rod (21) is inserted into the bottom surface of the diaphragm pressing block (22); The piston column (21) passes through the sleeve (16), and the outer wall of the piston column (21) contacts the inner wall of the sleeve (16); The bottom surface of the piston rod (21) protrudes from the bottom surface of the sleeve (16); The connecting column (311) is inserted into the bottom surface of the piston column (21), and the connecting column (311) is connected to the piston column (21); The column (34) is farther away from the outer wall of the connecting column (311) than the outer wall of the piston column (21); A first annular groove (19) is provided on the bottom surface of the sleeve (16), and when the column (34) is inserted into the first annular groove (19), the first sealing ring (35) is inserted into the first annular groove (19), and at this time, the inner wall of the ring body (32) contacts the outer wall of the sleeve (16); A second annular groove (212) is circumferentially formed on the side wall of the piston column (21); The bottom surface of the piston column (21) is provided with a convex ring (213), the convex ring (213) is adapted to the third annular groove (33), and a groove (214) corresponding to the movable plate (313) is provided on the side wall of the convex ring (213).

7. The pressure reducing valve according to claim 6, characterized in that: The piston mechanism (2) further comprises: an adjusting screw (23), an upper base (24), a lower base (25) and an adjusting spring (26); The lower base (25) is arranged on the top surface of the diaphragm (13); The lower base (25) is arranged inside the top cover (12); The upper base (24) is arranged above the lower base (25), and the upper base (24) is arranged inside the top cover (12); The bottom end of the adjusting screw (23) is connected to the upper base (24), and the top end of the adjusting screw (23) extends out of the top surface of the top cover (12); The adjusting screw (23) is threadedly connected to the top cover (12); The adjustment spring (26) is arranged between the upper base (24) and the lower base (25); The lower base (25), the diaphragm (13), the diaphragm pressing block (22) and the piston rod (21) are connected via a connecting screw (211); The degree of deformation of the adjusting spring (26) is adjusted by turning the adjusting screw (23).

8. A flow dividing mechanism (3) for the pressure reducing valve according to claim 1, characterized in that: include: A disc (31), wherein a connecting column (311) is provided at the center of the top surface of the disc (31), and the connecting column (311) is connected to the bottom of a piston column (21) in the piston mechanism (2); A plurality of strip-shaped grooves (312) are arranged on the top surface of the disc (31), and the length direction of the strip-shaped grooves (312) is arranged along the radial direction of the disc (31); A movable plate (313) is slidably disposed in the strip-shaped groove (312), and an end portion of the movable plate (313) extends from the inner side wall of the strip-shaped groove (312) into the interior of the disc (31); The movable plate (313) is provided with a plurality of first through holes (314) at equal intervals; A plurality of second through holes (315) are provided on the inner bottom surface of the strip-shaped groove (312), the second through holes (315) are in communication with the bottom surface of the disc (31), and the second through holes (315) correspond to the first through holes (314); A ring body (32) is arranged on the top surface of the disk (31) near the edge of the disk (31), and the ring body (32) is arranged along the circumference of the disk (31).

9. A semiconductor ultrapure water system using the pressure reducing valve as claimed in claim 1, characterized in that: include: The pressure reducing valve is connected to the water inlet pipe and the water outlet pipe.

10. A method of using the pressure reducing valve according to claim 1, characterized in that: include: The piston mechanism (2) opens or closes the valve body (1), and the diverter mechanism (3) reduces the impact force of the water flow on the disc (31) in the diverter mechanism (3) when the piston mechanism (2) opens the valve body (1).

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