CN118856022B - Valve core adjustable vacuum valve - Google Patents
Valve core adjustable vacuum valve Download PDFInfo
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- CN118856022B CN118856022B CN202411328574.1A CN202411328574A CN118856022B CN 118856022 B CN118856022 B CN 118856022B CN 202411328574 A CN202411328574 A CN 202411328574A CN 118856022 B CN118856022 B CN 118856022B
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- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 12
- 238000012546 transfer Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to the technical field of vacuum valves, and provides an adjustable valve core vacuum valve, which comprises a shell and a valve plate, wherein a swing rod driving mechanism for driving the valve plate to linearly slide in the shell is arranged on the shell, one surface of the valve plate is connected with a back plate through an elastic piece, an adjusting ring is in limiting movable abutting joint between the back plate and the valve plate, an adjusting block is adjustably connected to the adjusting ring, the swing rod driving mechanism is movably abutting against the adjusting block, so that the spacing rotation of the adjusting ring is stirred for changing the spacing between the back plate and the valve plate, the sealing of a valve is realized, the effective sealing of a pipe orifice is ensured, the operation flow is simplified, the convenience of use is improved, the adjustable assembly of the adjusting block and the adjusting ring is realized by adjusting the relative position of a bolt hole and a connecting strip hole, the initial position of the adjusting block is started to be stirred by the adjusting swing rod driving mechanism, the rotating angle of the adjusting ring is adjusted, the problem of large valve opening noise is solved, and the assembly efficiency and the one-time high yield is improved.
Description
Technical Field
The invention relates to the technical field of vacuum valves, in particular to a valve core adjustable vacuum valve.
Background
The vacuum valve is a valve for changing the conductance of a vacuum pipeline, and is used for cutting off or connecting a pipeline in a vacuum system and adjusting the air flow. The traditional vacuum valve generally adopts the vertical arrangement of power supply, occupies the volume greatly, probably takes place to interfere when being applied to narrow space junction equipment, in addition, the case of most vacuum valves is not adjustable for product processing assembly precision requires highly, causes the problem that the product yields is low and maintainability lacks easily, simultaneously, the current vacuum valve often appears producing the problem of vibration noise because of the impact in the valve opening moment.
Disclosure of Invention
The invention aims to provide a valve core adjustable vacuum valve, which solves the technical problems, has a compact structure, is convenient to operate, solves the problem of large valve opening noise, and improves the assembly efficiency and the high yield of primary finished products.
The valve core-adjustable vacuum valve comprises a shell and a valve plate, wherein a swing rod driving mechanism for driving the valve plate to linearly slide in the shell is arranged on the shell, one surface of the valve plate is connected with a back plate through an elastic piece, an adjusting ring is in limiting movable abutting joint between the back plate and the valve plate, an adjusting block is connected on the adjusting ring in an adjustable manner, and the swing rod driving mechanism is in movable abutting joint with the adjusting block, so that the adjusting ring is driven to rotate in a limiting manner to change the distance between the back plate and the valve plate.
Further, the connecting strip hole is formed in the adjusting block, the bolt hole is formed in the adjusting ring, and the adjusting ring is fixedly connected with the adjusting block through the bolt penetrating through the connecting strip hole and the bolt hole.
Further, the adjusting ring is uniformly connected with a plurality of balls along the circumferential direction through the connecting sleeve, a plurality of round nest grooves used for limiting the movement of the balls are formed in the valve plate, and annular grooves used for guiding the movement of the balls are formed in the back plate.
Further, the elastic piece is a plurality of spring pieces which are uniformly arranged, the plurality of spring pieces encircle to form a regular polygon which is inscribed in the inner circle of the adjusting ring, one end of each spring piece is connected with the valve plate through bolts, and the other end of each spring piece is connected with a bayonet arranged on the backboard through a clamping connection.
Further, the swing rod driving mechanism comprises an air cylinder, the telescopic end of the air cylinder is connected with a rack, the rack is connected with a gear in a meshed mode, the gear is connected with a swing arm through a rotating shaft, the end portion of the swing arm is connected with a pulley, and a sliding groove for limiting the sliding of the pulley is formed in the valve plate.
Preferably, the cylinder is connected with a switching cover which is covered outside the rack and the gear and is connected with the shell, and a first bearing, a first sealing ring, a second bearing and a second sealing ring which are sequentially sleeved on the rotating shaft are arranged in the switching cover.
Preferably, the outer surface of the switching cover is provided with a dial, and the top end of the rotating shaft is connected with a rotary indicating block matched with the dial through bolts.
Preferably, the side wall of the switching cover is provided with a leakage detection hole communicated with the first bearing.
Further, a third sealing ring for abutting against the pipe orifice is arranged on the other surface of the valve plate.
Further, the side edge of the valve plate is connected with a guide wheel which is in linear sliding connection with the inner wall of the shell.
The invention has at least the following advantages and beneficial effects:
(1) The swing rod driving mechanism is movably abutted against the adjusting block, and the adjusting ring is stirred to rotate in a limiting mode to change the distance between the back plate and the valve plate, so that valve closing sealing is achieved, and effective sealing of a pipe orifice is ensured;
(2) The adjustable assembly of the adjusting block and the adjusting ring is realized by adjusting the fixed relative positions of the bolt holes and the connecting strip holes, and the adjusting swing rod driving mechanism starts to stir the initial position of the adjusting block, so that the rotating angle of the adjusting ring is adjusted, the problem of large valve opening noise is solved, and the assembly efficiency and the one-time finished product high yield are improved;
(3) The ball is movably limited by arranging the round socket on the valve plate, the ball is guided by arranging the sliding groove on the back plate, the ball does not roll out of the round socket completely when the adjusting ring rotates, and the valve is loosened lightly by the elastic piece arranged between the valve plate and the back plate, so that the convenience of operation is improved;
(4) The cylinder drives the rack to do linear reciprocating motion, so that the gear meshed with the rack rotates, and the swing arm is driven to swing in a reciprocating manner through the transmission of the rotating shaft, so that the power transmission from the end face linear power source to the execution end swing is realized, the whole structure is compact, the problem of interference of the installation space is solved, the device is more suitable for equipment installation occasions with limited vertical space, and the adaptability of the device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a valve core adjustable vacuum valve according to the present invention;
FIG. 2 is a partial cross-sectional view of a valve core adjustable vacuum valve provided by the invention;
FIG. 3 is a schematic diagram of the meshing of racks and gears in a valve core-adjustable vacuum valve provided by the invention;
FIG. 4 is a schematic diagram showing the connection between a valve plate and a back plate in a valve core-adjustable vacuum valve according to the present invention;
FIG. 5 is a cross-sectional view of the valve plate and back plate in the valve core-adjustable vacuum valve according to the present invention;
FIG. 6 is a schematic diagram of a valve plate in a valve core-adjustable vacuum valve according to the present invention;
FIG. 7 is a schematic view of the other side of the valve plate in the valve core adjustable vacuum valve provided by the invention;
FIG. 8 is a schematic diagram of a valve element adjustable vacuum valve adjusting ring according to the present invention;
FIG. 9 is a schematic diagram of a valve element adjustable vacuum valve regulating block according to the present invention;
FIG. 10 is a schematic diagram of a back plate in a valve core-adjustable vacuum valve according to the present invention;
FIG. 11 is a partial cross-sectional side view of a back plate in a valve core-adjustable vacuum valve provided by the invention;
FIG. 12 is a schematic diagram of a guide wheel in a valve core adjustable vacuum valve according to the present invention;
FIG. 13 is a schematic view of the initial movement of a valve core adjustable vacuum valve according to the present invention;
FIG. 14 is a schematic diagram showing a closed but unsealed state of a valve core-adjustable vacuum valve according to the present invention;
FIG. 15 is a schematic diagram showing a closed and sealed state of a valve core-adjustable vacuum valve according to the present invention;
FIG. 16 is a schematic diagram showing the connection of an adjusting ring and an adjusting block in a valve core adjustable vacuum valve according to the present invention;
The icon comprises a 1-shell, a 2-swing rod driving mechanism, a 21-cylinder, a 22-rack, a 23-gear, a 24-rotating shaft, a 25-swing arm, a 26-pulley, a 27-rotating indication block, a 3-valve plate, a 30-round socket, a 31-sliding groove, a 311-straight section, a 312-round arc section, a 32-third sealing ring, a 4-elastic piece, a 5-adjusting ring, a 50-bolt hole, a 51-connecting sleeve, a 52-ball, a 6-adjusting block, a 60-connecting strip hole, a 61-clamping groove, a 7-back plate, a 70-ring groove, a 71-bayonet, a 8-connecting cover, a 80-leakage detecting hole, a 81-first bearing, a 82-second bearing, a 83-first sealing ring, a 84-second sealing ring, a 85-dial and a 9-guide wheel.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
In the embodiment, as shown in fig. 1-16, mainly a valve core adjustable vacuum valve is disclosed, a swing rod driving mechanism 2 for driving a valve plate 3to linearly slide in a housing 1 is arranged on the housing 1, one surface of the valve plate 3 is connected with a back plate 7 through an elastic piece 4, an adjusting ring 5 is in limited movable abutting joint between the back plate 7 and the valve plate 3, an adjusting block 6 is adjustably connected to the adjusting ring 5, the swing rod driving mechanism 2 is movably abutted against the adjusting block 6, so that the adjusting ring 5 is stirred to rotate in a limited manner to change the distance between the back plate 7 and the valve plate 3, the vacuum valve is mounted between the flanges of the two sections of the prior pipe openings to realize the switching valve and flow adjustment, the swing rod driving mechanism 2 can be used as a power source for driving the valve plate 3to linearly slide in the housing 1 and can also be used as a power source for stirring the adjusting ring 5 to rotate, the operation flow is simplified, the convenience in use is improved, one surface of the valve plate 3 is connected with the pipe opening flange of the back plate 7 at the air outlet end of the vacuum valve, the other surface of the valve plate 3 is provided with a third sealing ring 32 for abutting against the pipe opening flange at the air inlet end of the vacuum valve, the inner diameter of the valve is required to be larger than the third sealing ring 32 is required to be used for abutting against the third sealing ring 32 at the inner diameter of the pipe opening end.
In particular, in this embodiment, the clamping groove 61 is formed in the cross section of the adjusting block 6, so that the wall surface of the clamping groove 61 is an arc surface attached to the edge of the adjusting ring 5, the adjusting block 6 and the adjusting ring 5 form a superposition surface on the bottom surface of the clamping groove 61, the connecting strip hole 60 can be a section of arc hole of the sweeping range of circular motion of the bolt hole 50 with the center of the adjusting ring 5 as the center of a circle, the initial position of the adjusting block 6 is started to be shifted by the swing rod driving mechanism 2 through adjusting the relative position of the bolt hole 50 and the connecting strip hole 60, if the initial acting position is adjusted forwards, the rotation angle of the adjusting ring 5 is increased, the spacing between the valve plate 3 and the back plate 7 is increased, the compression ratio of the third sealing ring 32 is increased, and conversely, if the sealing noise is increased, the valve opening is caused by the bigger sealing noise. In addition, the adjustable assembly design of the adjusting block 6 and the adjusting ring 5 can effectively solve the problem of insufficient product precision caused by errors, improves the assembly efficiency and the once finished product high yield, and has larger technical and economic advantages in the maintenance of the later-stage products due to convenient adjustment of the position.
In particular, in implementation, as shown in fig. 5,6, 8, 10 and 11, the adjusting ring 5 provided in the embodiment of the invention is uniformly connected with a plurality of balls 52 along the circumferential direction through a connecting sleeve 51, a plurality of round socket grooves 30 for limiting the movement of the balls 52 are formed on a valve plate 3, a ring groove 70 for guiding the movement of the balls 52 is formed on the valve plate 7, specifically, two balls 52 which roll relatively independently are movably and limitedly connected in the connecting sleeve 51, the outer ends of the two balls 52 are respectively abutted and limited in the round socket grooves 30 and the ring groove 70, it is to be noted that the round socket grooves 30 are grooves which are folded from the outer edge to the bottom smoothly, the diameter of the outer edge of the round socket grooves 30 is larger than the diameter of the balls 52, the round socket grooves 30 are uniformly distributed in a discrete point shape on the valve plate 3, the ring groove 70 is continuous on the back plate 7, the ball 52 contacted with the valve plate 3 is located at the bottom of the round socket grooves 30, and the adjusting ring 5 is rotated through an adjusting block 6, so that the balls 52 move from the bottom of the round socket grooves 30 upwards along the walls of the round socket grooves 30, the circular socket grooves 30 are not supported by the circular socket grooves 3, and the distance between the valve plate 3 and the back plate 7 is not changed.
Further, in the specific implementation, as shown in fig. 5 and 10, the elastic member 4 provided in the embodiment of the present invention is a plurality of uniformly arranged spring pieces, the plurality of spring pieces surround to form a regular polygon inscribed in the inner circle of the adjusting ring 5, one end of each spring piece is connected with the valve plate 3 through a bolt, the other end of each spring piece is clamped with a bayonet 71 formed on the back plate 7, so that the acting point of the spring piece is effectively dispersed, the stable force application of the back plate 7 is ensured, and when the adjusting ring 5 stretches the valve plate 3 and the back plate 7, the spring pieces are pulled to maintain the elastic restoring force.
In particular, the cylinder 21 drives the rack 22 to do linear reciprocating motion, so that the gear 23 meshed with the rack is rotated, and the swing arm 25 is driven to do reciprocating motion through the transmission of the rotating shaft 24, so that the power transmission from an end face linear power source to the swing of an executing end is realized, the whole structure is compact, the problem of space interference can be solved, the device is more suitable for equipment installation occasions with limited vertical space, the adaptability of the device is improved, as shown in fig. 6 and 7, the end part of the swing arm 25 is connected with a pulley 26 through a rotating shaft 24, a sliding groove 31 for limiting the sliding of the pulley 26 is formed in the valve plate 3, the sliding groove 31 slides in the sliding groove 31, so that the sliding groove 25 is driven to do linear sliding motion in a shell 1 by the corresponding sliding groove 25, the linear power source is driven to do the transmission of the rotating shaft 24, the power transmission of the swing arm 25 is realized, the whole structure is compact, the problem of space interference can be solved, the device is more suitable for equipment installation occasions with limited vertical space, and the device is required to be improved, and the sliding groove 31 is provided with a straight section 311 and a circular arc section 312 arranged along the width direction of the valve plate 3, the circular arc section 311 is smoothly transited, the circular arc 26 is correspondingly, the circular arc 25 slides in the straight section 311 is correspondingly, the circular arc 25 is correspondingly in the circular section 2, the circular arc 2 is continuously slides, and the circular arc 2 is correspondingly rotated, and the linear power source is correspondingly, the linear power source is driven to move the valve 25, and the valve block is correspondingly 6 to slide in the circular section 6, and the circular groove 6, and the circular block is continuously rotates, and is continuously in the circular 5, and is continuously in the position 5, and is kept in contact with the sealing groove is in the position, and is kept in contact with the sealing groove, and is in the sealing groove is in the 5.
The cylinder 21 is connected with a transfer cover 8 covering the rack 22 and the gear 23 and connected with the shell 1, a first bearing 81, a first sealing ring 83, a second bearing 82 and a second sealing ring 84 which are sequentially sleeved on the rotating shaft 24 are arranged in the transfer cover 8, in particular, in order to facilitate assembly and disassembly maintenance, the transfer cover 8 can be assembled by an upper part and a lower part, the first bearing 81 is clamped in the upper part of the transfer cover 8, an outer ring of the first bearing 81 is relatively fixed with the transfer cover 8, an inner ring of the first bearing 81 synchronously rotates along with the rotating shaft 24, a sleeve is sleeved and fixed at the lower part of the transfer cover 8, a sealing ring sleeved on the sleeve is arranged at the joint of the upper part and the lower part of the transfer cover 8, the second bearing 82 is clamped in the sleeve, an outer ring of the second bearing 82 is relatively fixed with the sleeve, the inner ring of the second bearing 82 synchronously rotates along with the rotating shaft 24, a certain span exists between the first bearing 81 and the second bearing 82, effective support is provided for stable rotation of the rotating shaft 24, the first sealing ring 83 is arranged between the first bearing 81 and the sleeve, the second sealing ring 84 is clamped in the sleeve, double-layer dynamic sealing is realized, the connection and the reliability of a member is ensured, and the reliability of the sealing ring is improved, and the convenience in replacement and maintenance period of the bearing is convenient.
Preferably, as shown in fig. 1 and 2, the outer surface of the switching cover 8 is provided with a dial 85, the top end of the rotating shaft 24 is connected with a rotary indicating block 27 matched with the dial 85 in a bolt manner, specifically, the top end of the switching cover 8 is provided with a mounting hole, the rotary indicating block 27 is in clearance fit in the mounting hole and is connected with the rotating shaft 24 in a bolt manner and synchronously rotates along with the rotating shaft 24, the dial 85 is arranged in the circumferential direction of the mounting hole and serves as a position reference, the current valve state can be clearly displayed, a mechanical indication of a switching valve is provided for an operator, the operator can conveniently monitor and adjust the valve more intuitively, and convenience and accuracy of operation are improved.
Preferably, as shown in fig. 2, the side wall of the adapter cover 8 is provided with a leakage detection hole 80 communicated with a first bearing 81, so that efficient leakage detection of dynamic sealing of a later-stage finished product is facilitated.
Further, in the implementation, as shown in fig. 4 and 12, the side edge of the valve plate 3 provided by the embodiment of the invention is connected with a guide wheel 9 in linear sliding connection with the inner wall of the casing 1, and an additional supporting and limiting function is provided, so that the valve plate 3 is kept stable in the action process, and damage caused by offset is prevented.
As shown in fig. 13, in the initial movement schematic diagram of the vacuum valve provided in this embodiment, in this state, the piston of the cylinder 21 moves to drive the rack 22 to do a linear movement, drive the gear 23 and the rotating shaft 24 fixed thereto to rotate, the rotating rotation drives the swing arm 25 fixed thereto to swing, the pulley 26 on the swing arm 25 slides in the chute 31 to drive the valve plate 3 to slide along the inner wall of the housing 1, the ball 52 on one side is located at the bottom center of the circular socket 30 and not slid out, the ball 52 on the other side is located in the annular groove 70 of the back plate 7, and the valve plate 3 and the back plate 7 are in a furled state.
As shown in fig. 14, in the closed but unsealed state of the vacuum valve provided in this embodiment, the piston of the cylinder 21 continues to move to drive the rack 22 to do linear motion, drive the gear 23 and the rotating shaft 24 fixed thereto to rotate, the rotating shaft 24 rotates to drive the swing arm 25 fixed thereto to swing, and the pulley 26 on the swing arm 25 just moves to a position contacting the adjusting block 6, at this time, the third sealing ring 32, the adjusting ring 5 and the back plate 7 are coaxially arranged with the orifice flange.
As shown in fig. 15, in the vacuum valve provided in this embodiment, the piston of the cylinder 21 continues to move to drive the rack 22 to do linear motion, drive the gear 23 and the rotating shaft 24 fixed thereto to rotate, the rotating shaft 24 rotates to drive the swing arm 25 fixed thereto to swing, the pulley 26 on the swing arm 25 toggles the adjusting block 6 to rotate the adjusting ring 5, the ball 52 on one side gradually slides out along the circular socket 30, the ball 52 on the other side rolls circumferentially in the ring groove 70 of the back plate 7, so as to push the back plate 7 to move toward the same end pipe orifice flange, when the back plate 7 moves and abuts against the same end pipe orifice flange, the valve plate 3 is reversely pushed to move toward the other end pipe orifice flange until limiting, at this time, the adjusting ring 5 stretches the valve plate 3 and the back plate 7, the swing arm 25 stops moving in the rear arc section 312 and abuts against the adjusting block 6 to realize self-locking, the ball 52 stays on the inclined plane of the circular socket 30, and the spring piece keeps releasing the self-locking restoring force when the valve is opened;
In the valve opening process, a piston of the air cylinder 21 moves reversely to drive the rack 22 to do linear motion reversely, the gear 23 and the rotating shaft 24 fixed with the gear 23 are driven to rotate reversely, the swing arm 25 fixed with the gear is driven to rotate reversely, the pulley 26 slides reversely from the end part of the circular arc section 312, at the moment, under the elastic restoring force of the spring piece and the acting force of the inclined surface of the circular socket 30 on the ball 52, the ball 52 gradually returns to the bottom center of the circular socket 30, the adjusting ring 5 and the adjusting block 6 fixed with the adjusting ring gradually return to the initial position, the valve plate 3 and the backboard 7 are mutually close to gradually furl, the adjusting ring 5 stops rotating after the ball 52 returns to the bottom center of the circular socket 30, the pulley 26 slides in the straight section 311 of the sliding groove 31, and the valve plate 3 starts to move linearly along the inner wall of the shell 1 until the stroke of the air cylinder 21 is completed, and the whole valve opening action is completed.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a vacuum valve with adjustable case, includes casing (1) and valve plate (3), its characterized in that, be equipped with on casing (1) be used for driving valve plate (3) in the pendulum rod actuating mechanism (2) of linear slip in casing (1), valve plate (3) one side is connected with backplate (7) through elastic component (4), spacing activity butt has adjusting ring (5) between backplate (7) and valve plate (3), adjustable on adjusting ring (5) is connected with regulating block (6), pendulum rod actuating mechanism (2) activity butt adjusting block (6) thereby stir spacing rotation of adjusting ring (5) is used for changing backplate (7) with valve plate (3) interval;
Connecting strip hole (60) have been seted up to regulating block (6), bolt hole (50) have been seted up to adjusting ring (5), adjusting ring (5) pass through the bolt runs through connecting strip hole (60) with bolt hole (50) with regulating block (6) fastening connection, connecting strip hole (60) are bolt hole (50) use adjusting ring (5) center is the one section arc hole of centre of a circle circular motion sweep range, through the adjustment bolt hole (50) with connecting strip hole (60) fixed relative position confirms pendulum rod actuating mechanism (2) begins stirring the initial position of regulating block (6).
2. The valve core-adjustable vacuum valve according to claim 1, wherein the adjusting ring (5) is uniformly connected with a plurality of balls (52) along the circumferential direction through a connecting sleeve (51), the valve plate (3) is provided with a plurality of circular grooves (30) for limiting the balls (52) to move, and the back plate (7) is provided with annular grooves (70) for guiding the balls (52) to move.
3. The valve core-adjustable vacuum valve according to claim 1, wherein the elastic piece (4) is a plurality of spring pieces which are uniformly arranged, the plurality of spring pieces are surrounded to form a regular polygon which is inscribed in the inner circle of the adjusting ring (5), one end of each spring piece is connected with the valve plate (3) through bolts, and the other end of each spring piece is clamped with a bayonet (71) formed in the back plate (7).
4. The valve core-adjustable vacuum valve according to claim 1, wherein the swing rod driving mechanism (2) comprises a cylinder (21), a rack (22) is connected to the telescopic end of the cylinder (21), a gear (23) is connected to the rack (22) in a meshed mode, the gear (23) is connected with a swing arm (25) through a rotating shaft (24), a pulley (26) is connected to the end portion of the swing arm (25), and a sliding groove (31) for limiting sliding of the pulley (26) is formed in the valve plate (3).
5. The valve core-adjustable vacuum valve according to claim 4, wherein the cylinder (21) is connected with a switching cover (8) which is covered outside the rack (22) and the gear (23) and is connected with the housing (1), and a first bearing (81), a first sealing ring (83), a second bearing (82) and a second sealing ring (84) which are sequentially sleeved on the rotating shaft (24) are arranged in the switching cover (8).
6. The valve core-adjustable vacuum valve according to claim 5, wherein a dial (85) is arranged on the outer surface of the switching cover (8), and a rotary indicating block (27) matched with the dial (85) is connected to the top end of the rotating shaft (24) through bolts.
7. The valve core-adjustable vacuum valve according to claim 5, wherein a leakage detection hole (80) communicated with the first bearing (81) is formed in the side wall of the switching cover (8).
8. A valve core adjustable vacuum valve according to claim 1, characterized in that a third sealing ring (32) for abutting against the pipe orifice is arranged on the other side of the valve plate (3).
9. A valve core adjustable vacuum valve according to claim 1, characterized in that the side edge of the valve plate (3) is connected with a guide wheel (9) which is in linear sliding connection with the inner wall of the shell (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411328574.1A CN118856022B (en) | 2024-09-24 | 2024-09-24 | Valve core adjustable vacuum valve |
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| CN202411328574.1A CN118856022B (en) | 2024-09-24 | 2024-09-24 | Valve core adjustable vacuum valve |
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| CN118856022B true CN118856022B (en) | 2024-12-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120062371B (en) * | 2025-04-29 | 2025-08-01 | 昆山新莱洁净应用材料股份有限公司 | Air-driven vacuum valve device with support |
| CN120312868B (en) * | 2025-06-19 | 2025-09-16 | 成都中科唯实仪器有限责任公司 | A vacuum gate valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116066583A (en) * | 2023-03-30 | 2023-05-05 | 成都中科唯实仪器有限责任公司 | Self-locking single valve plate vacuum valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100520728B1 (en) * | 2005-03-25 | 2005-10-13 | 주식회사 에스티에스 | Opening and closing recognition type vacuum valve |
| US9638335B2 (en) * | 2015-01-08 | 2017-05-02 | King Lai Hygienic Materials Co., Ltd. | Double sealing valve |
| KR101698925B1 (en) * | 2015-02-26 | 2017-01-24 | 주식회사 비츠로머티리얼 | low noise vacuum gate valve |
| KR101730077B1 (en) * | 2015-06-22 | 2017-04-25 | 김도열 | Gate valve |
| CN212718081U (en) * | 2020-07-15 | 2021-03-16 | 成都中科唯实仪器有限责任公司 | Valve core structure for plug board valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066583A (en) * | 2023-03-30 | 2023-05-05 | 成都中科唯实仪器有限责任公司 | Self-locking single valve plate vacuum valve |
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