CN113883311A - Ultramicro-pressure self-operated pressure regulating valve - Google Patents
Ultramicro-pressure self-operated pressure regulating valve Download PDFInfo
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- CN113883311A CN113883311A CN202111266284.5A CN202111266284A CN113883311A CN 113883311 A CN113883311 A CN 113883311A CN 202111266284 A CN202111266284 A CN 202111266284A CN 113883311 A CN113883311 A CN 113883311A
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000001125 extrusion Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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Abstract
The invention relates to the technical field of regulating valves, in particular to an ultra-micro pressure self-operated pressure regulating valve which comprises a valve body, a valve clack, a valve rod, a pneumatic actuator, a first pressing plate, a second pressing plate and an extrusion mechanism, wherein the valve body is provided with a valve core; one surface of the first pressing plate is symmetrically penetrated with upright posts; one surfaces of the upright posts, which are far away from the first pressing plate, jointly penetrate through the second pressing plate; according to the invention, the threaded barrel which is in threaded connection with the upright post through synchronous rotation is matched with the pressure adjusting seat, the pressure adjusting seat can be driven to move upwards and extrude the second spring in the extruding mechanism, the rotating speeds of the threaded barrel are the same, so that the force of the second spring in the extruding mechanism can be decomposed, and further the pressure adjusting seat can move without the help of external tools, the operation of the pressure adjusting seat is simple, the moving efficiency of the pressure adjusting seat can be improved, and the pressure adjusting seat is simple to operate, so that the self-operated pressure adjusting valve is more convenient to adjust the pressure.
Description
Technical Field
The invention relates to the technical field of regulating valves, in particular to an ultra-micro pressure self-operated pressure regulating valve.
Background
The self-operated pressure regulating valve is divided into three series of self-operated pressure, pressure difference and flow regulating valves; the self-operated pressure regulating valve is divided into a front valve type and a rear valve type according to the position of a pressure taking point, and when the pressure taking point is in front of the valve, the pressure taking point is used for regulating the pressure in front of the valve to be constant; when the pressure taking point is behind the valve, the pressure taking point is used for adjusting the pressure behind the valve to be constant; when the pressure before the valve and the pressure after the valve are simultaneously introduced into two sides of the air chamber of the actuating mechanism, the self-operated pressure difference regulating valve can regulate the pressure at two ends of the regulating valve to be constant, and the pressure difference at two ends of an orifice plate arranged on a pipeline can also be introduced into two sides of the air chamber of the film actuating mechanism to form the self-operated flow regulating valve; and when carrying out pressure control to outdoor self-operated pressure regulating valve among the prior art, need rotate the pressure adjustment seat, when rotating the pressure adjustment seat, the second spring pressure in the top extrusion mechanism is too big, and the pressure adjustment seat of being not convenient for removes, consequently need just can drive the pressure adjustment seat with the help of external instrument and remove, uses external instrument to make the pressure adjustment seat too loaded down with trivial details moreover, and efficiency is slow simultaneously.
The Chinese patent with the application number of CN209925725U discloses a self-operated pressure regulating valve, which comprises a valve body, wherein flanges are arranged at two ends of the valve body, inner threaded holes are uniformly formed in the inner edges of the flanges, sleeves are uniformly arranged on the inner side walls of the flanges corresponding to the inner threaded holes, inner threads are arranged in the sleeves, a protective shell is connected to the top end of the valve body, a supporting seat is connected to the top of the protective shell, a fixed shell is connected to the edge of the top end of the supporting seat, a fixed plate is connected to the top end of the fixed shell, and a valve rod protective tube is connected to the top of the supporting seat, which is positioned on the inner side of the fixed shell; this technical scheme has fast to the regulating valve and is connected good effect with outside body, but can not solve among this technical scheme that the pressure adjustment seat is too loaded down with trivial details and the slow problem of efficiency in adjusting to cause this technical scheme's limitation.
In view of the above, in order to overcome the above technical problems, the present invention provides an ultra-micro pressure self-operated pressure regulating valve, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the overpressure self-operated pressure regulating valve provided by the invention can drive the pressure regulating seat to move upwards and extrude the second spring in the extruding mechanism through the mutual matching of the thread cylinder and the pressure regulating seat which are synchronously rotated and are in threaded connection with the upright post, and the rotating speeds of the thread cylinders are the same, so that the force of the second spring in the extruding mechanism can be decomposed, and then the pressure regulating seat can move without the help of an external tool, so that the pressure regulating seat is simple to operate, the moving efficiency of the pressure regulating seat can be improved, and the self-operated pressure regulating valve is more convenient and fast in pressure regulation due to the simple operation of the pressure regulating seat.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an ultra-micro pressure self-operated pressure regulating valve which comprises a valve body, a valve clack, a valve rod, a pneumatic actuator, a first pressure plate, a second pressure plate and an extrusion mechanism, wherein the valve clack is arranged on the valve body; one surface of the first pressing plate is symmetrically penetrated with upright posts; one side of the upright column, which is far away from the first pressing plate, jointly penetrates through the second pressing plate, the outer sides of the upright columns are all provided with threads, and one side of the upright column, which is close to the first pressing plate, is jointly sleeved with a pressure adjusting seat; the shape and size of the pressure adjusting seat are consistent with those of the first pressing plate, one surface of the pressure adjusting seat, far away from the first pressing plate, is symmetrically and rotatably connected with a threaded barrel, the threaded barrel is sleeved on the outer side of the upright column and is in threaded connection with the upright column, and an extrusion mechanism is arranged between one surface of the first pressing plate, positioned at the center and the second pressing plate;
when the outdoor self-operated pressure regulating valve works, due to the defects of the prior art, when the outdoor self-operated pressure regulating valve is subjected to pressure regulation, the pressure regulating seat needs to be manually rotated, when the pressure regulating seat is rotated, the pressure of a second spring in the upper extrusion mechanism is too high, and the pressure regulating seat is inconvenient to move, so that the pressure regulating seat can be driven to move by means of an external tool, and the pressure regulating seat is too complicated to regulate by using an external tool, and meanwhile, the efficiency is slow;
therefore, when the pressure adjusting seat of the outdoor self-operated pressure adjusting valve is adjusted, the rotating speeds of the two thread cylinders are kept on one side by synchronously rotating the thread cylinders, so that the two thread cylinders are ensured to synchronously move upwards on the upright post;
the pressure adjusting seat can be driven to move upwards and extrude the second spring in the extruding mechanism by synchronously rotating the threaded barrel in threaded connection with the upright column to be matched with the pressure adjusting seat, and the rotating speeds of the threaded barrels are the same, so that the force of the second spring in the extruding mechanism can be decomposed, and the pressure adjusting seat can move without the help of an external tool, the pressure adjusting seat is easy to operate, the moving efficiency of the pressure adjusting seat can be improved, and the pressure adjusting seat is simple to operate, so that the self-operated pressure adjusting valve is more convenient and rapid in pressure adjustment.
Preferably, teeth are arranged on the outer side of the threaded cylinder from top to bottom; one surface of the pressure adjusting seat, which is far away from the first pressing plate, is symmetrically and fixedly connected with supporting blocks; the two supporting blocks are jointly penetrated through and rotatably connected with a connecting rod; two ends of the connecting rod are fixedly connected with worms; the worm is meshed with teeth on the outer side of the threaded cylinder, and one end of the connecting rod penetrates through one of the worms and is fixedly connected with a crank; when the device works, the crank is rotated to drive the two worms and the connecting rod to rotate simultaneously, and the teeth are arranged outside the threaded barrel and are meshed with the worms, so that the worms drive the threaded barrel to rotate in the rotating process, the threaded barrel moves upwards on the outer side of the upright post, the pressure adjusting seat is driven to move upwards, and a second spring in the extrusion mechanism is extruded; the crank drives the worm to rotate, thereby driving the thread barrel to rotate and move upwards, driving the pressure adjusting seat to move more laborsavingly, simultaneously keeping the synchronous movement of the thread barrels on the two sides more, enabling the efficiency of the pressure adjusting seat to move upwards to be higher, and more convenient and more laborsaving.
Preferably, the connecting rod is spaced from a second spring in the pressing mechanism by a distance of two to five centimeters; during operation, because the connecting rod has a distance with the second spring in the extrusion mechanism, the connecting rod can not touch the second spring in the extrusion mechanism in the rotating process, thereby influencing the expansion and the reset of the second spring in the extrusion mechanism.
Preferably, three first springs are fixedly connected between the first pressure plate and the pressure adjusting seat; the first springs positioned on the two sides are sleeved on the outer side of the upright post, and the first spring positioned in the center is sleeved on the outer side of the extrusion mechanism; during operation, through the setting of first spring for first spring is to thrust of pressure adjustment seat, and offsets the elasticity of first spring in some extrusion mechanisms, thereby the shifting up of the pressure adjustment seat of being convenient for more, and then more laborsaving when rotating the crank, more quick remove suitable position to the pressure adjustment seat.
Preferably, the outer sides of the two upright posts are sleeved with two sections of corrugated air bags; the first section of the corrugated air bag is positioned between the second pressure plate and the threaded cylinder, and the second section of the corrugated air bag is positioned between the threaded cylinder and the pressure adjusting seat; during operation, through the setting of ripple gasbag, can protect the stand to guaranteed that the stand can not receive the erosion of foreign matter outdoor, and then protected stand outside screw thread, make stand outside screw thread can not rust, and increased the life of stand.
Preferably, one section of the handle is hinged with one section vertical to the handle; when the pressure regulating device works, when the crank rotates and the pressure regulating seat is located at a proper position, the crank is rotated, so that the crank horizontally rotates one hundred eighty degrees, the handle of the crank is attached to the outer side of the corrugated air bag, and the handle of the crank is retracted because the regulating valve is placed outdoors, so that the space occupied by the outside of the crank is reduced; the device can also prevent sundries from touching the crank handle, so that the crank handle can rotate, the pressure adjusting seat can be displaced, and the use of the adjusting valve can be influenced; the handle of the crank is attached to the outer side of the corrugated air bag, so that the stability of the pressure adjusting seat can be improved.
Preferably, a groove with an arc-shaped cross section is formed in the handle of the crank, and the groove is matched with the outer wall of the upright post; the during operation is the arc because of the cross-section for the contact surface increases between the handle of crank and the stand, can block in the outside of stand simultaneously, thereby more can improve crank handle stability, and then protects the handle, prevents the rotation.
The invention has the following beneficial effects:
1. the pressure adjusting seat can be driven to move upwards and extrude the second spring in the extruding mechanism by synchronously rotating the threaded barrel which is in threaded connection with the upright post to be matched with the pressure adjusting seat, and the rotating speeds of the threaded barrel are the same, so that the force of the second spring in the extruding mechanism can be decomposed, and the pressure adjusting seat can move without the help of external tools, so that the pressure adjusting seat is simple to operate, the moving efficiency of the pressure adjusting seat can be improved, and the self-operated pressure adjusting valve is more convenient and faster to adjust the pressure due to the simple operation of the pressure adjusting seat;
2. according to the invention, the crank is rotated to drive the two worms and the connecting rod to rotate simultaneously, and the outer surface of the threaded barrel is provided with teeth which are meshed with the worms, so that the worm drives the threaded barrel to rotate in the rotating process, so that the threaded barrel moves upwards on the outer side of the upright post, the pressure adjusting seat is driven to move upwards, and a second spring in the extruding mechanism is extruded; the crank drives the worm to rotate, so that the thread cylinders are driven to rotate and move upwards, the pressure adjusting seat is driven to move more laborsavingly, and meanwhile, the synchronous movement of the thread cylinders on two sides is kept, so that the pressure adjusting seat is higher in moving upwards efficiency, more convenient and more labor-saving;
3. according to the invention, through the arrangement of the first spring, the first spring pushes the pressure adjusting seat and offsets the elastic force of the first spring in some extrusion mechanisms, so that the pressure adjusting seat can move upwards more conveniently, and the pressure adjusting seat can be moved to a proper position more rapidly and more conveniently by rotating the crank.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a partial sectional view of the construction of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2 at A;
FIG. 4 is a schematic view of the threaded barrel of the present invention engaging a worm;
in the figure: 1. a first platen; 2. a second platen; 3. an extrusion mechanism; 4. a column; 5. a pressure regulating seat; 6. a threaded barrel; 7. a worm; 8. a connecting rod; 9. a crank; 10. a first spring; 11. a groove; 12. a corrugated air bag; 13. and (7) a supporting block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the ultra-micro pressure self-operated pressure regulating valve of the present invention comprises a valve body, a valve flap, a valve rod, a pneumatic actuator, a first pressure plate 1, a second pressure plate 2 and a squeezing mechanism 3; one surface of the first pressing plate 1 is symmetrically penetrated with upright posts 4; one surface of the upright post 4, which is far away from the first pressing plate 1, jointly penetrates through the second pressing plate 2, the outer sides of the upright posts 4 are all provided with threads, and one surface of the upright post 4, which is close to the first pressing plate 1, jointly sleeves a pressure adjusting seat 5; the shape and size of the pressure adjusting seat 5 are consistent with those of the first pressing plate 1, one surface of the pressure adjusting seat 5, which is far away from the first pressing plate 1, is symmetrically and rotatably connected with a threaded cylinder 6, the threaded cylinder 6 is sleeved on the outer side of the upright post 4 and is in threaded connection with the upright post 4, and an extrusion mechanism 3 is arranged on one surface of the first pressing plate 1, is positioned at the center and is arranged between the first pressing plate 1 and the second pressing plate 2;
when the outdoor self-operated pressure regulating valve works, due to the defects of the prior art, when the outdoor self-operated pressure regulating valve is subjected to pressure regulation, the pressure regulating seat 5 needs to be manually rotated, when the pressure regulating seat 5 is rotated, the pressure of a second spring in the upper extrusion mechanism 3 is too large, and the pressure regulating seat 5 is inconvenient to move, so that the pressure regulating seat 5 can be driven to move by means of an external tool, and the pressure regulating seat is too complicated to regulate by using an external tool, and meanwhile, the efficiency is slow;
therefore, when the pressure adjusting seat 5 of the outdoor self-operated pressure adjusting valve is adjusted, the rotating speeds of the two thread cylinders 6 are kept on one side by synchronously rotating the thread cylinders 6, so that the two thread cylinders 6 can be ensured to synchronously move upwards on the upright post 4, and because one ends of the two thread cylinders 6 are jointly and rotatably connected with the pressure adjusting seat 5, the two thread cylinders 6 drive the pressure adjusting seat 5 to move upwards in the rotating and upwards moving process, and simultaneously, the pressure adjusting seat 5 can not deviate in the upwards moving process, so that the elasticity of a second spring in the extruding mechanism 3 can be dispersed, the pressure adjusting seat 5 can be more conveniently moved upwards, the process of synchronously rotating the thread cylinders 6 is simple, and no external tool is used, and the upwards moving efficiency of the pressure adjusting seat 5 is increased;
according to the invention, the threaded barrel 6 which is in threaded connection with the upright post 4 through synchronous rotation is matched with the pressure adjusting seat 5, the pressure adjusting seat 5 can be driven to move upwards, the second spring in the extruding mechanism 3 is extruded, the rotating speed of the threaded barrel 6 is the same, so that the force of the second spring in the extruding mechanism 3 can be decomposed, and the pressure adjusting seat 5 can move without the help of external tools, the operation of adjusting the pressure adjusting seat 5 is simple, the moving efficiency of the pressure adjusting seat 5 can be improved, and the self-operated pressure adjusting valve is more convenient and faster in pressure adjustment due to the simple operation of adjusting the pressure adjusting seat 5.
In one embodiment of the present invention, the threaded cylinder 6 is provided with teeth from the outside up to the bottom; one surface of the pressure adjusting seat 5, which is far away from the first pressing plate 1, is symmetrically and fixedly connected with supporting blocks 13; the two supporting blocks 13 are jointly penetrated through and are rotatably connected with a connecting rod 8; two ends of the connecting rod 8 are fixedly connected with worms 7; the worm 7 is meshed with teeth on the outer side of the threaded barrel 6, and one end of the connecting rod 8 penetrates through one of the worms 7 and is fixedly connected with a crank 9; when the device works, the crank handle 9 is rotated to drive the two worms 7 and the connecting rod 8 to rotate simultaneously, and the thread barrel 6 is externally provided with teeth which are meshed with the worms 7, so that the worm 7 drives the thread barrel 6 to rotate in the rotating process, so that the thread barrel 6 moves upwards on the outer side of the upright post 4, the pressure adjusting seat 5 is driven to move upwards, and a second spring in the extrusion mechanism 3 is extruded; crank 9 drives worm 7 and rotates to drive a screw thread section of thick bamboo 6 and rotate and shift up, more laborsaving drive pressure adjustment seat 5 removes, has kept the synchronous motion of a both sides screw thread section of thick bamboo 6 simultaneously more, makes the efficiency that pressure adjustment seat 5 moved up higher, and more convenient more laborsaving.
As an embodiment of the present invention, the connecting rod 8 is spaced from the second spring in the pressing mechanism 3 by a distance of two to five centimeters; during operation, because the connecting rod 8 has a distance with the second spring in the extrusion mechanism 3, the connecting rod 8 can not touch the second spring in the extrusion mechanism 3 in the rotating process, thereby influencing the extension and the reset of the second spring in the extrusion mechanism 3.
As an embodiment of the present invention, three first springs 10 are fixedly connected between the first pressing plate 1 and the pressure adjusting base 5; the first springs 10 positioned at two sides are sleeved on the outer side of the upright post 4, and the first spring 10 positioned at the center is sleeved on the outer side of the extrusion mechanism 3; during operation, through the setting of first spring 10 for first spring 10 is to thrust of pressure adjustment seat 5, and offsets some elasticity of first spring 10 in the extrusion mechanism 3, thereby is convenient for more shifting up of pressure adjustment seat 5, and then more laborsaving when rotating crank 9, more quick remove suitable position pressure adjustment seat 5.
As an embodiment of the present invention, two sections of corrugated airbags 12 are sleeved on the outer sides of the two upright posts 4; the first section of the corrugated air bag 12 is positioned between the second pressing plate 2 and the threaded cylinder 6, and the second section of the corrugated air bag 12 is positioned between the threaded cylinder 6 and the pressure adjusting seat 5; during operation, through the setting of ripple gasbag 12, can protect stand 4 to guaranteed that stand 4 can not receive the erosion of foreign matter outdoor, and then protected stand 4 outside screw thread, make stand 4 outside screw thread can not rust, and increased stand 4's life.
As an embodiment of the invention, a section of the handle 9 is hinged with a section vertical to the handle; when the pressure regulating device works, when the crank 9 rotates and the pressure regulating seat 5 is located at a proper position, the crank 9 is rotated, the crank 9 horizontally rotates one hundred eighty degrees, the handle of the crank 9 is attached to the outer side of the corrugated air bag 12, and the handle of the crank 9 is retracted because the regulating valve is placed outdoors, so that the space occupied by the outside of the crank 9 is reduced; the sundries can be prevented from touching the crank 9, so that the crank 9 rotates, the pressure adjusting seat 5 is displaced, and the use of the adjusting valve is influenced; the handle of the crank 9 is attached to the outside of the bellows bag 12, and the stability of the pressure adjustment seat 5 can be improved.
As an embodiment of the invention, a groove 11 with an arc-shaped section is formed at the handle of the crank 9, and the groove 11 is matched with the outer wall of the upright post 4; the during operation is the arc because of the cross-section for contact surface increases between the handle of crank 9 and the stand 4, can block in the outside of stand 4 simultaneously, thereby more can improve crank 9 handle stability, and then protects the handle, prevents the rotation.
The specific working process is as follows:
therefore, when the pressure adjusting seat 5 of the outdoor self-operated pressure adjusting valve is adjusted, the rotating speeds of the two thread cylinders 6 are kept on one side by synchronously rotating the thread cylinders 6, so that the two thread cylinders 6 can be ensured to synchronously move upwards on the upright post 4, and because one ends of the two thread cylinders 6 are jointly and rotatably connected with the pressure adjusting seat 5, the two thread cylinders 6 drive the pressure adjusting seat 5 to move upwards in the rotating and upwards moving process, and simultaneously, the pressure adjusting seat 5 can not deviate in the upwards moving process, so that the elasticity of a second spring in the extruding mechanism 3 can be dispersed, the pressure adjusting seat 5 can be more conveniently moved upwards, the process of synchronously rotating the thread cylinders 6 is simple, and no external tool is used, and the upwards moving efficiency of the pressure adjusting seat 5 is increased; the crank 9 is rotated to drive the two worms 7 and the connecting rod 8 to rotate simultaneously, and teeth are arranged outside the thread cylinder 6 and are meshed with the worms 7, so that the worm 7 drives the thread cylinder 6 to rotate in the rotating process, the thread cylinder 6 moves upwards on the outer side of the upright post 4, the pressure adjusting seat 5 is driven to move upwards, and a second spring in the extrusion mechanism 3 is extruded; the crank 9 drives the worm 7 to rotate, so that the thread cylinders 6 are driven to rotate and move upwards, the pressure adjusting seat 5 is driven to move more laborsavingly, and meanwhile, the synchronous movement of the thread cylinders 6 on the two sides is kept, so that the pressure adjusting seat 5 moves upwards more efficiently, more conveniently and more laborsavingly; because the connecting rod 8 is away from the second spring in the extrusion mechanism 3, the connecting rod 8 cannot touch the second spring in the extrusion mechanism 3 in the rotating process, so that the expansion and the reset of the second spring in the extrusion mechanism 3 are influenced; through the arrangement of the first spring 10, the first spring 10 pushes the pressure adjusting seat 5 and offsets the elastic force of the first spring 10 in some extrusion mechanisms 3, so that the pressure adjusting seat 5 can move upwards more conveniently, labor is saved when the crank 9 is rotated, and the pressure adjusting seat 5 can be moved to a proper position more quickly; the upright post 4 can be protected by the arrangement of the corrugated air bag 12, so that the upright post 4 is prevented from being corroded by external substances outdoors, the outer side threads of the upright post 4 are protected, the outer side threads of the upright post 4 are prevented from rusting, and the service life of the upright post 4 is prolonged; when the crank 9 rotates and the pressure adjusting seat 5 is in a proper position, the crank 9 is rotated, the crank 9 is horizontally rotated one hundred eighty degrees, the handle of the crank 9 is attached to the outer side of the corrugated air bag 12, and the handle of the crank 9 is retracted because the adjusting valve is placed outdoors, so that the space occupied by the outside of the crank 9 is reduced; the sundries can be prevented from touching the crank 9, so that the crank 9 rotates, the pressure adjusting seat 5 is displaced, and the use of the adjusting valve is influenced; the handle of the crank 9 is jointed with the outer side of the corrugated air bag 12, so that the stability of the pressure adjusting seat 5 can be improved; be the arc because of the cross-section for the contact surface increases between the handle of crank 9 and stand 4, can block in the outside of stand 4 simultaneously, thereby more can improve crank 9 handle stability, and then protects the handle, prevents the rotation.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An ultra-micro pressure self-operated pressure regulating valve comprises a valve body, a valve clack, a valve rod, a pneumatic actuator, a first pressure plate (1), a second pressure plate (2) and an extrusion mechanism (3); the method is characterized in that: one surface of the first pressing plate (1) is symmetrically penetrated with upright posts (4); one surface, far away from the first pressing plate (1), of the upright post (4) penetrates through the second pressing plate (2) together, threads are arranged on the outer sides of the upright post (4), and a pressure adjusting seat (5) is sleeved on one surface, close to the first pressing plate (1), of the upright post (4) together; the shape and size of the pressure adjusting seat (5) are consistent with those of the first pressing plate (1), one surface of the pressure adjusting seat (5) far away from the first pressing plate (1) is symmetrically and rotatably connected with a threaded cylinder (6), the threaded cylinder (6) is sleeved on the outer side of the stand column (4) and is in threaded connection with the stand column (4), and one surface of the first pressing plate (1) is located at the center and is provided with an extrusion mechanism (3) between the first pressing plate and the second pressing plate (2).
2. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: teeth are arranged on the outer side of the threaded cylinder (6) from top to bottom; one surface of the pressure adjusting seat (5) far away from the first pressing plate (1) is symmetrically and fixedly connected with supporting blocks (13); the two supporting blocks (13) are jointly penetrated through and are rotatably connected with a connecting rod (8); two ends of the connecting rod (8) are fixedly connected with worms (7); the worm (7) is meshed with teeth on the outer side of the threaded barrel (6), and one end of the connecting rod (8) penetrates through one of the worms (7) and is fixedly connected with a crank (9).
3. The ultra-micro pressure self-operated pressure regulating valve according to claim 2, wherein: the connecting rod (8) and a second spring in the extrusion mechanism (3) have a distance of two to five centimeters.
4. The ultra-micro pressure self-operated pressure regulating valve according to claim 3, wherein: and three first springs (10) are fixedly connected between the first pressing plate (1) and the pressure adjusting seat (5).
5. The ultra-micro pressure self-operated pressure regulating valve according to claim 4, wherein: two sections of corrugated air bags (12) are sleeved on the outer sides of the two upright posts (4); the first section of the corrugated air bag (12) is positioned between the second pressing plate (2) and the threaded cylinder (6), and the second section of the corrugated air bag (12) is positioned between the threaded cylinder (6) and the pressure adjusting seat (5).
6. The ultra-micro pressure self-operated pressure regulating valve according to claim 5, wherein: one section of the crank handle (9) is hinged with one section vertical to the handle.
7. The ultra-micro pressure self-operated pressure regulating valve according to claim 6, wherein: the handle of the crank (9) is provided with a groove (11) with an arc-shaped section, and the groove (11) is matched with the outer wall of the upright post (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266284.5A CN113883311A (en) | 2021-10-28 | 2021-10-28 | Ultramicro-pressure self-operated pressure regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266284.5A CN113883311A (en) | 2021-10-28 | 2021-10-28 | Ultramicro-pressure self-operated pressure regulating valve |
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| CN113883311A true CN113883311A (en) | 2022-01-04 |
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| CN202111266284.5A Pending CN113883311A (en) | 2021-10-28 | 2021-10-28 | Ultramicro-pressure self-operated pressure regulating valve |
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