CN114738510B - Inclined plane double-sealing vacuum stop valve structure - Google Patents
Inclined plane double-sealing vacuum stop valve structure Download PDFInfo
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- CN114738510B CN114738510B CN202210435766.7A CN202210435766A CN114738510B CN 114738510 B CN114738510 B CN 114738510B CN 202210435766 A CN202210435766 A CN 202210435766A CN 114738510 B CN114738510 B CN 114738510B
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- fixing rod
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- 238000007789 sealing Methods 0.000 title claims abstract description 125
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction 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
- F16K3/30—Details
- F16K3/312—Line blinds
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses an inclined plane double-seal vacuum stop valve structure, which relates to the technical field of vacuum stop valves and comprises a valve body and a connecting shell, wherein the outer wall of a seal stop block and the output end of an air cylinder are provided with a seal mechanism penetrating into the seal stop block. According to the utility model, the sealing mechanism is arranged, the sealing piston block is driven by the output end of the air cylinder to move downwards, the fixing rod is driven by the first spring to reset when the sealing piston block seals the inside of the valve body, the fixing rod is inserted into the fixing hole, the sealing piston block is fixed with the connecting shell, the fixing rod is separated from the sealing piston block, then the sealing piston block is continuously driven by the output end of the air cylinder to move in the sealing bin, gas in the sealing bin is conveyed into the first air bag through the first air duct and conveyed into the second air bag through the second air duct, and the gap between the sealing piston block and the contact part of the valve body and the connecting shell is sealed by expanding the first air bag and the second air bag, so that the integral sealing performance of the device is improved.
Description
Technical Field
The utility model relates to the technical field of vacuum stop valves, in particular to an inclined plane double-seal vacuum stop valve structure.
Background
The vacuum stop valve is a kind of relatively new gate valve, and has some advantages of its own structure, such as no friction, less wear of the seal, small opening and closing moment, so that it can reduce the specification of the matched actuator, and can implement regulation and tight cutting of medium.
The existing vacuum stop valve is generally connected with a sealing ring through the outer wall of a movable sealing member, the movable sealing member is used for intercepting the inside of the vacuum stop valve, then the periphery of the movable sealing member is sealed through the sealing ring, but the sealing ring is easy to wear in the long-time use process, so that the whole sealing performance of the device is poor, the vacuum stop valve cannot intercept the inside, workers are required to maintain the inside of the vacuum stop valve regularly, and the process is troublesome.
Disclosure of Invention
The utility model aims at: in order to solve the problem that leakage easily occurs in the vacuum stop valve during closure, an inclined-plane double-seal vacuum stop valve structure is provided.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the inclined plane double-seal vacuum stop valve structure comprises a valve body and a connecting shell fixedly connected to the top end of the valve body, wherein a seal stop block is slidably connected in the connecting shell, an air cylinder is installed at the top end of the connecting shell, the output end of the air cylinder penetrates through the inside of the seal stop block, and a seal mechanism penetrating through the inside of the seal stop block is arranged on the outer wall of the seal stop block and the output end of the air cylinder;
the sealing mechanism comprises a first air bag, a second air bag, a fixing rod, a fixing hole, a sealing bin, a sealing piston block and a first spring, wherein the first air bag is installed on the outer wall of the sealing stop block, the second air bag is installed on the outer wall of the sealing stop block and positioned at the top end of the first air bag, the sealing bin is arranged in the sealing stop block, the sealing piston block is slidably connected in the sealing bin and fixedly connected with the output end of the air cylinder, the fixing rod is slidably connected in the sealing stop block, one end of the fixing rod penetrates through the inner wall of the sealing piston block, the first spring is fixedly connected with the outer wall of the fixing rod, one end of the fixing rod is fixedly connected with the sealing stop block, and the fixing hole is arranged in the inner wall of the connecting shell and positioned on one side of the fixing rod;
the inside of connection shell is provided with runs through to the inside actuating mechanism of sealed dog is used for the drive the dead lever moves.
As still further aspects of the utility model: the driving mechanism comprises a connecting rod, a straight gear, a first connecting block, a half gear, a first trapezoid latch, a sliding block, a triangle block, an L-shaped block, a second connecting block, a third connecting block, a second trapezoid latch, a second spring, a first torsion spring, a connecting shaft, a second torsion spring and a third torsion spring, wherein the third connecting block is fixedly connected with one side outer wall of the sealing piston block, the second trapezoid latch is rotationally connected with one side outer wall of the third connecting block, one end of the second torsion spring is fixedly connected with the inside of the third connecting block, the first connecting block is fixedly connected with the inside of the sealing stop block and is positioned at one side of the sealing piston block, the connecting shaft is rotationally connected with the inside of the first connecting block, two ends of the connecting shaft penetrate through the outer walls of two sides of the first connecting block respectively, the straight gear is fixedly connected with one end of the connecting shaft and is meshed with the second trapezoid latch, the connecting shaft is fixedly connected with the other end of the half gear, the first torsion spring is arranged on the outer wall of the connecting shaft, the first end of the connecting block is fixedly connected with the first connecting block, one side of the sealing piston block is fixedly connected with the second connecting block, the other end of the sealing piston block is fixedly connected with the triangle block, the connecting block is rotationally connected with the other side of the sealing stop block, the sealing stop block is fixedly at one side of the connecting block, and is located one side of slider, connecting rod fixed connection is in the inside of coupling housing, and is located the top of sealed dog.
As still further aspects of the utility model: the input end of the first air bag is connected with a first air duct penetrating into the sealing bin, and the output end of the second air bag is fixedly connected with a second air duct communicated with the first air bag.
As still further aspects of the utility model: the bottom fixedly connected with first stopper of dead lever, the dead lever pass through bottom fixed connection's first stopper with sealing stop dog sliding connection, sealing piston block's one side outer wall seted up with dead lever assorted recess.
As still further aspects of the utility model: the bottom of L shape piece sets up to the sphere, the top of slider seted up with L shape piece assorted first through-hole, the bottom fixedly connected with second stopper of slider, the slider pass through bottom fixed connection's stopper with sealing stop sliding connection.
As still further aspects of the utility model: the second through hole is formed in the inner side of the first connecting block, the third through hole aligned with the second through hole is formed in the top end of the sealing stop block, the third through hole is located right above the connecting rod, a third spring is fixedly connected to the outer wall of the L-shaped block, and one end of the third spring is fixedly connected with the first connecting block.
As still further aspects of the utility model: the outer wall fixedly connected with bearing of connecting axle, first connecting block offer with connecting axle assorted rotation groove, the connecting axle through outer wall fixed connection's bearing housing with first connecting block rotates to be connected.
As still further aspects of the utility model: the first pivot of both sides outer wall fixedly connected with of second trapezoidal latch, the one end of first pivot run through to the inside of third connecting block and with second torsional spring one end fixed connection, the second trapezoidal latch pass through the first pivot of both sides outer wall fixed connection with the third connecting block rotates to be connected, the second trapezoidal latch is provided with a plurality of, a plurality of the second trapezoidal latch equidistance distribute in the outer wall of third connecting block.
As still further aspects of the utility model: the first trapezoidal latch is provided with a plurality of trapezoidal latches, and the trapezoidal latches are equidistantly distributed on the top of the slider.
Compared with the prior art, the utility model has the beneficial effects that:
1. through setting up sealing mechanism, the cylinder output promotes sealed piston block and drives sealed dog and move downwards, when sealed dog is with the inside shutoff of valve body, first spring promotes the dead lever to reset, make it insert in the fixed orifices, fixed sealed dog and coupling shell, dead lever and sealed piston block separation simultaneously, then the cylinder output continues to promote sealed piston block and moves in sealed storehouse inside, carry the inside gas of sealed storehouse to first gasbag inside through first air duct, carry to inside the second gasbag through the second air duct, make first gasbag and second gasbag expand and seal dog and valve body, coupling shell contact position clearance shutoff, with this holistic leakproofness of improvement device;
2. through setting up actuating mechanism, drive sealed piston piece when the cylinder output resets, shrink through actuating mechanism drive dead lever, make the dead lever shrink to the inside of sealed dog in the fixed orifices, dead lever one end inserts in the sealed piston piece outer wall recess simultaneously, fixes dead lever and sealed piston piece to this makes things convenient for the cylinder to drive sealed dog through sealed piston piece and reset.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of a valve body of the present utility model;
FIG. 3 is an enlarged view of the utility model at A;
FIG. 4 is a schematic view of a seal stopper according to the present utility model;
FIG. 5 is a cross-sectional view of a seal stop of the present utility model;
FIG. 6 is an enlarged view of the utility model at B;
FIG. 7 is a schematic view of the internal structure of the seal stopper of the present utility model;
FIG. 8 is an enlarged view of the utility model at C;
FIG. 9 is a schematic view of a first connecting block structure according to the present utility model;
FIG. 10 is a cross-sectional view of a third connection block of the present utility model;
fig. 11 is a cross-sectional view of a slider of the present utility model.
In the figure: 1. a valve body; 2. a connection housing; 3. a cylinder; 4. a sealing stop; 5. a sealing mechanism; 501. a first air bag; 502. a second air bag; 503. a fixed rod; 504. a fixing hole; 505. sealing the bin; 506. sealing the piston block; 507. a first spring; 6. a driving mechanism; 601. a connecting rod; 602. spur gears; 603. a first connection block; 604. a half gear; 605. a first trapezoidal latch; 606. a slide block; 607. triangular blocks; 608. an L-shaped block; 609. a second connection block; 610. a third connecting block; 611. a second trapezoidal latch; 612. a second spring; 613. a first torsion spring; 614. a connecting shaft; 615. a second torsion spring; 616. and a third torsion spring.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 11, in the embodiment of the utility model, an inclined double-seal vacuum stop valve structure comprises a valve body 1 and a connecting shell 2 fixedly connected to the top end of the valve body 1, wherein a seal stop block 4 is slidably connected to the inside of the connecting shell 2, a cylinder 3 is mounted on the top end of the connecting shell 2, the output end of the cylinder 3 penetrates into the seal stop block 4, and a seal mechanism 5 penetrating into the seal stop block 4 is arranged on the outer wall of the seal stop block 4 and the output end of the cylinder 3;
the sealing mechanism 5 comprises a first air bag 501, a second air bag 502, a fixing rod 503, a fixing hole 504, a sealing bin 505, a sealing piston block 506 and a first spring 507, wherein the first air bag 501 is installed on the outer wall of the sealing stop 4, the second air bag 502 is installed on the outer wall of the sealing stop 4 and positioned at the top end of the first air bag 501, the sealing bin 505 is arranged in the sealing stop 4, the sealing piston block 506 is slidably connected in the sealing bin 505 and fixedly connected with the output end of the air cylinder 3, the fixing rod 503 is slidably connected in the sealing stop 4, one end of the fixing rod penetrates through the inner wall of the sealing piston block 506, the first spring 507 is fixedly connected with the outer wall of the fixing rod 503, one end of the fixing rod is fixedly connected with the sealing stop 4, and the fixing hole 504 is arranged on the inner wall of the connecting shell 2 and positioned on one side of the fixing rod 503;
the inside of the connection housing 2 is provided with a driving mechanism 6 penetrating into the inside of the sealing stopper 4 for driving the fixing lever 503 to move.
In this embodiment: firstly, when the inside of the valve body 1 needs to be shut off, the cylinder 3 is started, the output end of the cylinder 3 pushes the sealing piston block 506 to drive the sealing piston block 4 to move downwards through the fixing rod 503, when the sealing piston block 4 moves to the maximum position to block the inside of the valve body 1, the fixing rod 503 moves to one side of the fixing hole 504, so that the first spring 507 is not pushed by the external extrusion force to push the fixing rod 503 to reset, one end of the fixing rod 503 is inserted into the fixing hole 504, the sealing piston block 4 is fixed with the connecting shell 2, and the other end of the fixing rod 503 moves out of the groove on one side outer wall of the sealing piston block 506, so that the sealing piston block 506 is not fixed any more, then the output end of the cylinder 3 continues to move to push the sealing piston block 506 to move in the sealing cabin 505, gas in the sealing cabin 505 is conveyed into the first gas bag 501 through the first gas guide pipe, and conveyed into the second gas guide pipe 502, so that the first gas bag 501 and the second gas guide pipe 502 expand to block the contact clearance between the sealing piston block 4 and the valve body 1 and the connecting shell 2, and the overall sealing performance of the device is improved.
Referring to fig. 2-11, the driving mechanism 6 includes a connecting rod 601, a spur gear 602, a first connecting block 603, a half gear 604, a first trapezoidal latch 605, a slider 606, a triangle block 607, an L-shaped block 608, a second connecting block 609, a third connecting block 610, a second trapezoidal latch 611, a second spring 612, a first torsion spring 613, a connecting shaft 614, a second torsion spring 615 and a third torsion spring 616, the third connecting block 610 is fixedly connected to one side outer wall of the sealing piston block 506, the second trapezoidal latch 611 is rotatably connected to one side outer wall of the third connecting block 610, one end of the second torsion spring 615 is fixedly connected to the inside of the third connecting block 610, the first connecting block 603 is fixedly connected to the inside of the sealing stopper 4 and positioned at one side of the sealing piston block 506, the connecting shaft 614 is rotatably connected to the inside of the first connecting block 603, two ends respectively penetrate through the two side outer walls of the first connecting block 603, the spur gear 602 is fixedly connected to one end of the connecting shaft 614 and is meshed with the second trapezoidal latch 611, the connecting shaft 614 is fixedly connected to the other end of the half gear 604, the first torsion spring 613 is arranged on the outer wall of the connecting shaft 614 and is rotatably connected to the other end of the connecting block 606, the first torsion spring 613 is rotatably connected to the other side of the inside of the connecting block 606, which is fixedly connected to the slider 606, the inside of the slider 606 is fixedly connected to one side of the connecting block 606, which is fixedly connected to the slider 606, and is fixedly connected to the inside of the slider 606, and is fixedly connected to one side of the connecting block, which is fixedly connected to one side of the slider, and 4, the connecting rod 601 is fixedly connected to the inside of the connection housing 2 and is located above the sealing stopper 4.
In this embodiment: when the output end of the air cylinder 3 drives the sealing piston block 506 to move downwards and simultaneously drives a plurality of second trapezoid clamping teeth 611 to move downwards through a third connecting block 610, when one end inclined surface of the second trapezoid clamping teeth 611 is contacted with the spur gear 602, one end of the second torsion spring 615 is driven to rotate through a first rotating shaft under resistance, when the second trapezoid clamping teeth 611 are separated from the spur gear 602, the second torsion spring 615 drives the second trapezoid clamping teeth 611 to reset through the first rotating shaft, when one end of the fixing rod 503 is inserted into the fixing hole 504 and simultaneously drives the second connecting block 609 to move, the second connecting block 609 is attached to the outer wall of one side of the sliding block 606, when the cut-off is not needed to be carried out inside the valve body 1, the output end of the air cylinder 3 drives the sealing piston block 506 to reset, gas inside the first air bag 501 and the second air bag 502 is sucked into the sealing cabin 505, when the sealing piston block 506 drives the second trapezoid clamping teeth 611 to move downwards through the third connecting block 610 to reset, when the bottom end of the second trapezoid latch 611 contacts with the spur gear 602, the spur gear 602 is driven to rotate with one end of the first torsion spring 613 through the connecting shaft 614, so that the first torsion spring 613 is twisted, the connecting shaft 614 rotates and drives the half gear 604 to rotate, when the half gear 604 rotates, the half gear 604 contacts with one end of the first trapezoid latch 605 in an inclined plane, the first trapezoid latch 605 is pushed to drive one end of the third torsion spring 616 to rotate through the second rotating shaft, when the first trapezoid latch 605 is no longer contacted with the half gear 604, the third torsion spring 616 drives the first trapezoid latch 605 to reset through the second rotating shaft, when the sealing piston block 506 resets, the second trapezoid latch 611 is separated from the spur gear 602, so that the first torsion spring 613 is no longer driven by external extrusion force to reset through the spur gear 602, thereby driving the half gear 604 to reset, when the half gear 604 is reset, the half gear 604 contacts with the first trapezoid latch 605, and the first trapezoid latch 605 is resisted, so that the first trapezoid latch 605 is pushed to drive the sliding block 606 to extrude the second spring 612 to move to one end, the sliding block 606 moves to one end and simultaneously pushes the second connecting block 609 to drive the fixing rod 503 to extrude the first spring 507 to move to one end, the sliding block 606 moves to one end and simultaneously drives the triangular block 607 to move to one end, when the triangular block 607 moves to one end and contacts with the spherical surface of the bottom end of the L-shaped block 608, the L-shaped block 608 is pushed to pull the third spring to move downwards, when the sliding block 606 moves to the maximum position, the other end of the fixing rod 503 is inserted into the groove on one side of the sealing piston block 506, meanwhile, the L-shaped block 608 is aligned with the first through hole at the top end of the sliding block 606, so that the third spring drives the L-shaped block 608 to reset and insert into the first through hole, the sliding block 606 is fixed, the sealing piston block 506 is fixed with the sealing stop block 4 through the fixing rod 503, then the output end of the air cylinder 3 contracts to drive the sealing stop block 4 to reset, when the sealing stop block 4 resets, the connecting rod 601 is inserted into a second through hole formed in the inner side of the first connecting block 603 through a third through hole formed in the top end of the sealing stop block 4 to contact with the L-shaped block 608, the L-shaped block 608 is pushed to push the third spring to move towards one end, when the sealing stop block 4 moves to the maximum position, the connecting rod 601 pushes the L-shaped block 608 to pull out from the first through hole in the top end of the sliding block 606, the second spring 612 is not driven to reset by external extrusion force, meanwhile, the fixing rod 503 abuts against the outer wall of the connecting shell 2, and the function of driving the fixing rod 503 to reset is realized through the cooperation of a plurality of parts.
Referring to fig. 4, the input end of the first air bag 501 is connected with a first air duct penetrating into the sealed cabin 505, and the output end of the second air bag 502 is fixedly connected with a second air duct communicated with the first air bag 501.
In this embodiment: the sealing piston block 506 is convenient to slide in the sealing bin 505, and gas in the sealing bin 505 is conveyed into the first air bag 501 through the first air duct and conveyed into the second air bag 502 through the second air duct, so that the first air bag 501 and the second air bag 502 are inflated.
Referring to fig. 3-6, a first limiting block is fixedly connected to the bottom end of the fixing rod 503, the fixing rod 503 is slidably connected to the sealing stop 4 through the first limiting block fixedly connected to the bottom end, and a groove matched with the fixing rod 503 is formed in an outer wall of one side of the sealing piston block 506.
In this embodiment: when being convenient for the dead lever 503 to remove to being located fixed orifices 504 one side, first spring 507 no longer receives external extrusion force to promote dead lever 503 and resets, makes dead lever 503 one end insert inside fixed orifices 504, and the dead lever 503 other end shifts out from the recess simultaneously, makes sealed piston block 506 no longer fixed with sealed dog 4 to this makes things convenient for cylinder 3 to promote sealed piston block 506 and removes, carries out spacingly through first spacing slider to dead lever 503, avoids first dead lever 503 to take place the skew at the in-process that removes.
Referring to fig. 3-7, the bottom end of the L-shaped block 608 is set to be a sphere, a first through hole matched with the L-shaped block 608 is provided at the top end of the slider 606, a second limiting block is fixedly connected at the bottom end of the slider 606, the slider 606 is slidably connected with the sealing block 4 through the limiting block fixedly connected at the bottom end, a second through hole is provided at the inner side of the first connecting block 603, a third through hole aligned with the second through hole is provided at the top end of the sealing block 4, and the third through hole is located right above the connecting rod 601, a third spring is fixedly connected to the outer wall of the L-shaped block 608, and one end of the third spring is fixedly connected with the first connecting block 603.
In this embodiment: the sliding block 606 is convenient to drive the triangular block 607 to move towards one end, when the inclined surface at one end of the triangular block 607 is in spherical contact with the bottom end of the L-shaped block 608, the L-shaped block 608 is pushed to pull the third spring to move downwards, when the first through hole formed in the top end of the sliding block 606 is moved to be positioned at the bottom end of the L-shaped block 608, the third spring is not pushed to reset by the extrusion force of the outside, the L-shaped block 608 is inserted into the first through hole, the sliding block 606 is fixed with the sealing stop block 4, the sliding block 606 is limited by the second limiting block fixedly connected with the bottom end of the sliding block 606, the sliding block 606 is prevented from being deviated in the moving process, and when the connecting rod 601 is inserted into the second through hole formed in the inner side of the first connecting block 603 to be in contact with the L-shaped block 608 through the third through hole formed in the top end of the sealing stop block 4, the L-shaped block 608 is pushed to pull the third spring to move towards one end.
Referring to fig. 9, a bearing is fixedly connected to an outer wall of the connecting shaft 614, a rotating groove matched with the connecting shaft 614 is formed in the first connecting block 603, and the connecting shaft 614 is rotatably connected with the first connecting block 603 through a bearing sleeve fixedly connected to the outer wall.
In this embodiment: when the spur gear 602 drives the half gear 604 to rotate through the connecting shaft 614, the friction between the connecting shaft 614 and the first connecting block 603 is reduced through the bearing fixedly connected with the outer wall of the connecting shaft 614.
Referring to fig. 8 and 10, the outer walls of two sides of the second trapezoidal latch 611 are fixedly connected with a first rotating shaft, one end of the first rotating shaft penetrates into the third connecting block 610 and is fixedly connected with one end of the second torsion spring 615, the second trapezoidal latch 611 is rotatably connected with the third connecting block 610 through the first rotating shaft fixedly connected with the outer walls of two sides, a plurality of second trapezoidal latches 611 are arranged, and a plurality of second trapezoidal latches 611 are equidistantly distributed on the outer wall of the third connecting block 610.
In this embodiment: when the inclined surface at one end of the second trapezoid latch 611 contacts with the spur gear 602, the first rotating shaft drives one end of the second torsion spring 615 to rotate, and when the second trapezoid latch 611 is separated from the spur gear 602, the second torsion spring 615 drives the second trapezoid latch 611 to reset through the first rotating shaft.
Referring to fig. 8 and 11, the outer walls of two sides of the first trapezoidal latch 605 are fixedly connected with a second rotating shaft, one end of the second rotating shaft penetrates through the inside of the slider 606 and is fixedly connected with one end of the third torsion spring 616, the first trapezoidal latch 605 is rotatably connected with the slider 606 through the second rotating shaft fixedly connected with the outer walls of two sides, the first trapezoidal latch 605 is provided with a plurality of first trapezoidal latches 605, and the plurality of first trapezoidal latches 605 are equidistantly distributed at the top end of the slider 606.
In this embodiment: when the half gear 604 rotates, the half gear 604 contacts with one end of the first trapezoid latch 605 in an inclined plane, the first trapezoid latch 605 is pushed to drive one end of the third torsion spring 616 to rotate through the second rotating shaft, and when the first trapezoid latch 605 is not contacted with the half gear 604 any more, the third torsion spring 616 drives the first trapezoid latch 605 to reset through the second rotating shaft.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. The utility model provides a bevel double-seal vacuum stop valve structure, includes valve body (1) and fixed connection is in coupling shell (2) on valve body (1) top, the inside sliding connection of coupling shell (2) has sealed dog (4), cylinder (3) are installed on the top of coupling shell (2), just the output of cylinder (3) runs through to the inside of sealed dog (4), its characterized in that, the outer wall of sealed dog (4) with the output of cylinder (3) is provided with and runs through to sealing mechanism (5) inside sealed dog (4);
the sealing mechanism (5) comprises a first air bag (501), a second air bag (502), a fixing rod (503), a fixing hole (504), a sealing bin (505), a sealing piston block (506) and a first spring (507), wherein the first air bag (501) is installed on the outer wall of the sealing stop block (4), the second air bag (502) is installed on the outer wall of the sealing stop block (4) and is positioned at the top end of the first air bag (501), the sealing bin (505) is arranged in the sealing stop block (4), the sealing piston block (506) is slidably connected in the sealing bin (505) and is fixedly connected with the output end of the air cylinder (3), the fixing rod (503) is slidably connected in the sealing stop block (4), one end of the fixing rod penetrates through the inner wall of the sealing piston block (506), the first spring (507) is fixedly connected with the outer wall of the fixing rod (503), one end of the fixing rod is fixedly connected with the sealing stop block (4), and the fixing hole (504) is arranged on the inner wall of the fixing rod (503) and is positioned on one side of the fixing rod (2).
The inside of the connecting shell (2) is provided with a driving mechanism (6) penetrating into the sealing stop block (4) and used for driving the fixing rod (503) to move.
2. The structure of claim 1, wherein the driving mechanism (6) comprises a connecting rod (601), a straight gear (602), a first connecting block (603), a half gear (604), a first trapezoid latch (605), a sliding block (606), a triangle block (607), an L-shaped block (608), a second connecting block (609), a third connecting block (610), a second trapezoid latch (611), a second spring (612), a first torsion spring (613), a connecting shaft (614), a second torsion spring (615) and a third torsion spring (616), the third connecting block (610) is fixedly connected to an outer wall of one side of the sealing piston block (506), the second trapezoid latch (611) is rotatably connected to an outer wall of one side of the third connecting block (610), one end of the second torsion spring (615) is fixedly connected to the inside of the third connecting block (610), the first connecting block (603) is fixedly connected to the inside of the sealing block (4) and is located at one side of the sealing piston block (506), the connecting shaft (614) is rotatably connected to two ends of the first connecting block (614) at two ends of the straight gear (602), and with the meshing of second trapezoidal latch (611), connecting axle (614) fixed connection is in the other end of half gear (604), first torsional spring (613) set up the outer wall of connecting axle (614), one end of first torsional spring (613) with first linkage block (603) fixed connection, and the other end with spur gear (602) fixed connection, first linkage block (603) sliding connection is in one side outer wall of L-shaped piece (608), slider (606) sliding connection is in the inside of sealing dog (4), first trapezoidal latch (605) rotation is connected the top of slider (606), and with half gear (604) meshing, third torsional spring (616) fixed connection is in the inside of slider (606), second spring (612) fixed connection is in one end of slider (606), and the other end with sealing dog (4) fixed connection, triangle-shaped piece (603) fixed connection is in one side of slider (606), second trapezoidal latch (605) rotation is connected in one side of slider (606), and is located in one side of connecting rod (503) fixed connection (503) is located in one side of connecting rod (601) fixed connection (2).
3. The inclined surface double-sealing vacuum stop valve structure according to claim 1, wherein the input end of the first air bag (501) is connected with a first air duct penetrating into the sealing bin (505), and the output end of the second air bag (502) is fixedly connected with a second air duct communicated with the first air bag (501).
4. The inclined surface double-sealing vacuum stop valve structure according to claim 1, wherein a first limiting block is fixedly connected to the bottom end of the fixing rod (503), the fixing rod (503) is slidably connected with the sealing stop block (4) through the first limiting block fixedly connected to the bottom end, and a groove matched with the fixing rod (503) is formed in the outer wall of one side of the fixing hole (504).
5. The inclined surface double-sealing vacuum stop valve structure according to claim 2, wherein the bottom end of the L-shaped block (608) is a spherical surface, a first through hole matched with the L-shaped block (608) is formed in the top end of the sliding block (606), a second limiting block is fixedly connected to the bottom end of the sliding block (606), and the sliding block (606) is slidably connected with the sealing stop block (4) through the limiting block fixedly connected to the bottom end.
6. The inclined double-seal vacuum stop valve structure according to claim 2, wherein a second through hole is formed in the inner side of the first connecting block (603), a third through hole aligned with the second through hole is formed in the top end of the sealing stop block (4), the third through hole is located right above the connecting rod (601), a third spring is fixedly connected to the outer wall of the L-shaped block (608), and one end of the third spring is fixedly connected with the first connecting block (603).
7. The inclined surface double-sealing vacuum stop valve structure according to claim 2, wherein a bearing is fixedly connected to the outer wall of the connecting shaft (614), a rotating groove matched with the connecting shaft (614) is formed in the first connecting block (603), and the connecting shaft (614) is rotatably connected with the first connecting block (603) through a bearing sleeve fixedly connected to the outer wall.
8. The inclined surface double-seal vacuum stop valve structure according to claim 2, wherein the outer walls of two sides of the second trapezoid latch (611) are fixedly connected with a first rotating shaft, one end of the first rotating shaft penetrates through the third connecting block (610) and is fixedly connected with one end of the second torsion spring (615), the second trapezoid latch (611) is rotatably connected with the third connecting block (610) through the first rotating shaft fixedly connected with the outer walls of two sides, and the second trapezoid latch (611) is provided with a plurality of second trapezoid latches (611) which are equidistantly distributed on the outer wall of the third connecting block (610).
9. The inclined surface double-sealing vacuum stop valve structure according to claim 2, wherein two side outer walls of the first trapezoid latch (605) are fixedly connected with second rotating shafts, one end of each second rotating shaft penetrates through the inside of the sliding block (606) and is fixedly connected with one end of the third torsion spring (616), the first trapezoid latch (605) is rotatably connected with the sliding block (606) through the second rotating shafts fixedly connected with the two side outer walls, the first trapezoid latch (605) is provided with a plurality of first trapezoid latches (605), and the plurality of first trapezoid latches (605) are equidistantly distributed on the top end of the sliding block (606).
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| CN115379686A (en) * | 2022-08-02 | 2022-11-22 | 上海国动网络通信有限公司 | Communication base station dust keeper |
| CN115127739A (en) * | 2022-08-31 | 2022-09-30 | 扬州君兴车业有限公司 | Air tightness detection device for cylinder body of refrigerator oil cylinder compressor |
| CN116146726B (en) * | 2023-04-21 | 2023-06-27 | 常州市锋杰机械有限公司 | Nylon rotary sealing valve |
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| KR20040034038A (en) * | 2002-10-17 | 2004-04-28 | 박웅기 | Vaccum Gate Valve |
| CN209705309U (en) * | 2019-03-21 | 2019-11-29 | 无锡市伍豪机械设备有限公司 | A kind of Pneumatic ash conveying valve |
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| CN216024340U (en) * | 2021-09-07 | 2022-03-15 | 深圳市方润环境科技有限公司 | Pre-dispersing device for paint production |
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|---|---|---|---|---|
| EP2404089A4 (en) * | 2009-03-06 | 2016-11-23 | Tyco Valves & Controls Lp | Gate valve with lubricated secondary seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040034038A (en) * | 2002-10-17 | 2004-04-28 | 박웅기 | Vaccum Gate Valve |
| CN209705309U (en) * | 2019-03-21 | 2019-11-29 | 无锡市伍豪机械设备有限公司 | A kind of Pneumatic ash conveying valve |
| CN214197260U (en) * | 2020-11-26 | 2021-09-14 | 天津福得士阀门有限公司 | Novel stop valve |
| CN112747133A (en) * | 2021-01-08 | 2021-05-04 | 周圳慧 | Fast-inserting type stop valve |
| CN216024340U (en) * | 2021-09-07 | 2022-03-15 | 深圳市方润环境科技有限公司 | Pre-dispersing device for paint production |
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