CN219140492U - Pneumatic quick-mounting valve fixture - Google Patents
Pneumatic quick-mounting valve fixture Download PDFInfo
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- CN219140492U CN219140492U CN202223498511.XU CN202223498511U CN219140492U CN 219140492 U CN219140492 U CN 219140492U CN 202223498511 U CN202223498511 U CN 202223498511U CN 219140492 U CN219140492 U CN 219140492U
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Abstract
The application discloses pneumatic quick-mounting valve fixture relates to the technical field of steel cylinder valves, which comprises a valve body, a valve core and a driving mechanism, wherein a first gas channel and a compressed air inlet are formed in the valve body, a second gas channel is formed in the valve core, the valve core is arranged in the valve body, the first gas channel is communicated with the second gas channel, a first hole and a second hole are formed in the other end of the valve body, the first hole is communicated with the second hole, the driving mechanism comprises a piston, a piston rod, a push rod and a baffle plate, the baffle plate is arranged on the valve body, the baffle plate seals the first hole, the compressed air inlet is communicated with the first hole, the piston slides in the first hole, the piston rod slides in the second hole, the piston rod is connected with the piston, one end of the push rod is connected with one end of the piston rod, which is far away from the piston, and the other end of the push rod is connected with the valve core; the valve core is driven by the piston, the piston rod and the ejector rod, so that the valve core is in closer contact with the air inlet end of the steel cylinder, and the air leakage probability of the contact point between the air inlet end of the steel cylinder and the valve core is further reduced.
Description
Technical Field
The utility model discloses a pneumatic quick-mounting valve fixture, and relates to the technical field of steel cylinder valve connection.
Background
The high pressure chamber of the gas cylinder valve is connected with the cylinder, the low pressure chamber is a gas outlet and leads to a use system, and when the gas cylinder valve needs to be used, a clamp and the gas cylinder valve need to be used for connection.
At present, the Chinese patent application with publication number of CN114738666A and publication number of 2022, 07 and 12 discloses a hydrogenation gun, which comprises a valve body, wherein a return air interface and an air inlet interface are arranged on the valve body, a shell is arranged on the outer wall of the valve body, a handle is arranged on the valve body, the handle drives a cam, a valve rod and a bearing to rotate 180 degrees around the valve body, the valve rod simultaneously drives a three-way ball to rotate 180 degrees when rotating, a steel cylinder filling port of the valve body is propped against a valve core, a sleeve is arranged in the valve body, the valve core is in sliding connection with the sleeve, a main sealing ring is arranged on the valve core, and a valve core spring is arranged on the valve core; when gas is injected into a steel cylinder or other container, a worker needs to hold a hydrogenation gun, push the hydrogenation gun towards the gas inlet of the steel cylinder, enable the gas inlet of the steel cylinder to squeeze a valve core, enable the valve core to compress a spring, and then fix a hydrogenation cavity on the gas inlet of the steel cylinder.
With respect to the related art, the inventor considers that under the action of the spring force, the hydrogenation gun is heavy, so that a worker needs to consume a great amount of physical power to push the hydrogenation gun to be installed on the air inlet of the steel cylinder, and the connection efficiency of the hydrogenation gun and the steel cylinder is further reduced.
Disclosure of Invention
In order to improve the efficiency of inflating a steel cylinder and reduce the probability of gas leakage, the utility model provides a pneumatic quick-mounting valve clamp.
The utility model provides a pneumatic quick-mounting valve clamp which adopts the following technical scheme:
the utility model provides a pneumatic type quick-assembling valve fixture, includes valve body, case, locking mechanism and actuating mechanism, first gas passage has been seted up on the valve body, the inside second gas passage that has seted up of case, the case slides and sets up in the inside of valve body one end, and first gas passage and second gas passage intercommunication, first hole and second hole have been seted up to the other end of valve body, the diameter of first hole is greater than the diameter of second hole, first hole and second hole intercommunication, locking mechanism is used for locking the valve body on the inlet end of steel bottle;
the driving mechanism comprises a piston, a piston rod, a push rod and a baffle, wherein the baffle is arranged on the valve body, the baffle is used for blocking the first hole, a compressed air inlet is further formed in the valve body and communicated with the first hole, the piston is arranged in the first hole in a sliding mode, the piston rod is arranged in the second hole in a sliding mode, the piston rod is fixedly connected with the piston coaxially, one end of the push rod is connected with one end, far away from the piston, of the piston rod, and the other end of the push rod is connected with the valve core.
By adopting the technical scheme, when high-pressure gas is filled into the steel cylinder, the valve body is fixed on the gas filling end of the steel cylinder through the locking mechanism, compressed air is filled into the valve body from the compressed air inlet formed in the valve body, at the moment, the air pressure in the first hole is increased, the piston drives the piston rod to move in the direction away from the baffle, the piston rod drives the ejector rod to move, the ejector rod drives the valve core to move in the direction of the gas inlet end of the steel cylinder, the valve core is abutted with the gas inlet end of the steel cylinder, and then the high-pressure gas is introduced into the steel cylinder through the first gas channel on the valve body and the second gas channel on the valve core; the valve core is driven by the piston, the piston rod and the ejector rod, so that the valve core is in closer contact with the air inlet end of the steel cylinder, the air leakage probability of the contact point between the air inlet end of the steel cylinder and the valve core is further reduced, and the danger probability is further reduced; when the steel bottle needs to be deflated, the threaded cutting sleeve is sleeved on the air inlet end of the steel bottle, compressed air is filled into the valve body from the compressed air inlet formed in the valve body, at the moment, the air pressure in the first hole is increased, the piston drives the piston rod to move in the direction away from the baffle, the piston rod drives the ejector rod to move, the ejector rod drives the valve core to move in the direction of the air inlet end of the steel bottle, the valve core is enabled to be abutted with the air inlet end of the steel bottle, the pressure of the air inlet end of the steel bottle is large when the steel bottle is deflated, at the moment, the valve core is driven by the piston, the piston rod and the ejector rod, the valve core is enabled to be in closer contact with the air inlet end of the steel bottle, and then the air leakage probability of the air inlet end of the steel bottle and the contact point of the valve core is reduced.
Optionally, the driving mechanism further comprises a first spring, the first spring is sleeved on the piston rod, one end of the first spring is in butt joint with the piston, and the other end of the first spring is in butt joint with the valve body.
By adopting the technical scheme, after the steel cylinder is inflated, the compressed air input from the compressed air inlet is withdrawn, so that the pressure in the first cavity is reduced, under the action of the elasticity of the first spring, the piston is pushed by the first spring, the piston drives the piston rod, the ejector rod and the valve core to move towards the direction of the baffle plate, the valve core is separated from the air inlet end of the steel cylinder, the valve core is retracted into the valve body, and then the locking assembly is opened, so that the valve body is removed from the air inlet end of the steel cylinder; due to the arrangement of the first spring, after the steel cylinder is inflated, the valve core can be retracted into the valve body, so that the probability that the valve core is exposed to the outside is reduced, the probability that the valve core is polluted is further reduced, and the tightness of the valve core and the air inlet end of the steel cylinder is improved when the steel cylinder is inflated next time.
Optionally, locking mechanism includes screw thread cutting ferrule, lock sleeve and promotes the subassembly, the one end of screw thread cutting ferrule is provided with the lug, the other end of screw thread cutting ferrule is provided with the latch hook, the latch hook is connected with the valve body, the lock sleeve slip cap is established on the valve body, the lock sleeve is provided with the briquetting on the one end that is close to the lug, promote the subassembly setting on the valve body, promote the subassembly and be connected with the lock sleeve transmission.
Through adopting above-mentioned technical scheme, when filling compressed gas to the steel bottle, with screw thread cutting ferrule cover on the inlet end of steel bottle, drive the lock sleeve through pushing the subassembly and remove, make the briquetting remove to the lug on, and compress tightly the lug, make screw thread cutting ferrule fix on the inlet end of steel bottle, compressed gas passes through first gas passage, through the second gas passage, compress into in the steel bottle, because when inflating in to the steel bottle, only need the workman to drive the lock sleeve through pushing the subassembly and remove, make the briquetting compress tightly the lug, alright fix the screw thread cutting ferrule on the inlet end of steel bottle, and then reduce the steel bottle valve and hose connector's connection time, when a plurality of steel bottles need aerify, and then can improve the efficiency of being connected to steel bottle valve and steel bottle.
Optionally, the promotion subassembly includes pendulum ring, cam and connecting axle, the connecting axle sets up on the valve body, the cam rotates to be connected on the connecting axle, the pendulum ring sets up on the cam, the cam is connected with the lock sleeve transmission.
Through adopting above-mentioned technical scheme, when filling compressed gas to the steel bottle, with screw thread cutting ferrule cover on the inlet end of steel bottle, the workman rotates through moving the pendulum ring, and the conversion drives the cam and rotates, and the cam drives the lock sleeve and slides on the valve body, makes the briquetting remove to the lug on to compress tightly the lug, makes the screw thread cutting ferrule fix on the inlet end of steel bottle, and then reduces the valve and the connection time of steel bottle inlet end, and then improves the inflated efficiency to the steel bottle.
Optionally, the lock sleeve is provided with a limit groove, the valve body is provided with a limit block, and the lock sleeve slides on the valve body through the limit groove and the limit block.
Through adopting above-mentioned technical scheme, when cam drive time cover slides on the valve body, the stopper restriction lock sleeve's travel distance, and then reduce because thrust is too big, makes the briquetting break away from the probability of lug, and then reduces the probability that the lock sleeve damaged.
Optionally, the valve further comprises a sealing mechanism, the sealing mechanism comprises a first sealing assembly, the first sealing assembly comprises a first sealing ring and a second sealing ring, the first sealing ring is sleeved on one end, close to the ejector rod, of the valve core, and the second sealing ring is sleeved on one end, far away from the first sealing ring, of the valve core.
By adopting the technical scheme, when the valve core is in contact with the air inlet end of the steel cylinder, the valve core is in closer contact with the air inlet end of the steel cylinder by the arrangement of the first sealing ring, so that the probability of gaps between the valve core and the air inlet end of the steel cylinder is reduced, and the probability of air leakage is further reduced; the second sealing ring is arranged, so that when the first spring pushes the valve core to move, the probability of gaps between the valve core and the valve body is reduced, the valve core is in closer contact with the valve body, and then the probability of air leakage of the valve body is reduced.
Optionally, the first sealing assembly further comprises a third sealing ring, and the third sealing ring is sleeved on one end of the threaded cutting sleeve, provided with the locking hook.
Through adopting above-mentioned technical scheme, the one end and the screw thread cutting ferrule contact of third sealing washer, the other end and the lock sleeve contact of third sealing washer for when the lock sleeve removes on the valve body, reduce the friction force between lock sleeve and the screw thread cutting ferrule, and then make the lock sleeve slide on the valve body more easily.
Optionally, the sealing mechanism further comprises a second sealing assembly, the second sealing assembly comprises a lock sleeve, a second spring and a fourth sealing ring, the lock sleeve is sleeved on one end of the valve core, which is provided with the first sealing ring, the second spring is sleeved on the valve core, one end of the second spring is abutted to the valve body, the other end of the second spring is abutted to the lock sleeve, the fourth sealing ring is sleeved on the lock sleeve, and the fourth sealing ring is abutted to the protruding block.
By adopting the technical scheme, when the first sealing ring is abutted with the air inlet end of the steel cylinder, the second spring pushes the lock sleeve to move towards the air inlet end of the steel cylinder, so that the fourth sealing ring on the lock sleeve is contacted with the protruding block, the probability of gaps between the lock sleeve and the protruding block is further reduced, and the probability of leakage of compressed gas is further reduced; when the steel bottle needs gassing, lock the valve body on the inlet end of steel bottle through the lock sleeve, under the promotion of piston rod this moment, make case and the inlet end in close contact of steel bottle, the second spring promotes the lock sleeve, makes fourth sealing washer and lock sleeve contact, and then reduces the probability that has the gap between lock sleeve and the lock sleeve, and then reduces the steel bottle when gassing, the probability that gas flowed to the atmosphere.
The beneficial effects of the utility model are as follows:
1. when the device is inflated to the steel cylinder, the valve core is not in contact with the air inlet of the steel cylinder before the device is connected to the steel cylinder, and air pressure is applied to the first hole after the device is connected to the air inlet of the steel cylinder, so that the driving mechanism drives the valve core to move towards the air inlet of the steel cylinder, the valve core is in contact with the air inlet of the steel cylinder, the difficulty of connection with the steel cylinder is further reduced, and the connection efficiency with the steel cylinder is further improved.
2. The compressed air inlet is formed in the valve body, compressed air is filled into the valve body, at the moment, the air pressure in the first hole is increased, the piston drives the piston rod to move in the direction away from the baffle, the piston rod drives the ejector rod to move, the ejector rod drives the valve core to move in the direction of the air inlet end of the steel cylinder, the valve core is abutted with the air inlet end of the steel cylinder, the valve core is driven by the piston, the piston rod and the ejector rod, the valve core is tightly contacted with the air inlet end of the steel cylinder, the air leakage probability of the air inlet end of the steel cylinder and the contact point of the valve core is reduced, and the danger probability is further reduced.
3. After the steel cylinder is inflated, the compressed air input from the compressed air inlet is withdrawn, so that the pressure in the first cavity is reduced, under the action of the elastic force of the first spring, the first spring pushes the piston, the piston drives the piston rod, the ejector rod and the valve core to move towards the baffle plate, the valve core is separated from the air inlet end of the steel cylinder, the valve core is retracted into the valve body, and then the locking assembly is opened, so that the valve body is removed from the air inlet end of the steel cylinder; due to the arrangement of the first spring, after the steel cylinder is inflated, the valve core can be retracted into the valve body, so that the probability that the valve core is exposed to the outside is reduced, the probability that the valve core is polluted is further reduced, and the tightness of the valve core and the air inlet end of the steel cylinder is improved when the steel cylinder is inflated next time.
4. When the first sealing ring is abutted against the air inlet end of the steel cylinder, the second spring pushes the lock sleeve to move towards the air inlet end of the steel cylinder, so that the fourth sealing ring on the lock sleeve is contacted with the protruding block, the probability of gaps between the lock sleeve and the protruding block is further reduced, and the probability of leakage of compressed gas is further reduced; when the steel bottle needs gassing, lock the valve body on the inlet end of steel bottle through the lock sleeve, under the promotion of piston rod this moment, make case and the inlet end in close contact of steel bottle, the second spring promotes the lock sleeve, makes fourth sealing washer and lock sleeve contact, and then reduces the probability that has the gap between lock sleeve and the lock sleeve, and then reduces the steel bottle when gassing, the probability that gas flowed to the atmosphere.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a partially enlarged schematic view of the B portion of fig. 2.
Reference numerals illustrate: 100. a valve body; 110. a first gas passage; 120. a first hole; 130. a second hole; 140. a limiting block; 200. a valve core; 210. a second gas passage; 300. a locking mechanism; 310. a thread cutting sleeve; 311. a bump; 312. a latch hook; 320. a locking sleeve; 321. briquetting; 322. a limit groove; 330. a pushing assembly; 331. a swinging ring; 332. a cam; 333. a connecting shaft; 400. a driving mechanism; 410. a piston; 420. a piston rod; 430. a push rod; 440. a baffle; 450. a limiting ring; 460. a first spring; 500. a sealing mechanism; 510. a first seal assembly; 511. a first seal ring; 512. a second seal ring; 513. a third seal ring; 520. a second seal assembly; 521. a lock sleeve; 522. a second spring; 523. and a fourth sealing ring.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a pneumatic quick-mounting valve fixture, which comprises a valve body 100, a valve core 200, a locking mechanism 300, a driving mechanism 400 and a sealing mechanism 500, wherein a first gas channel 110 is formed in the valve body 100, a second gas channel 210 is formed in the valve core 200, the valve core 200 is slidably arranged in one end of the valve body 100, the first gas channel 110 is communicated with the second gas channel 210, the driving mechanism 400 is used for driving the valve core 200 to move in the valve body 100, and the sealing mechanism 500 is used for sealing a gap in the valve body 100.
Referring to fig. 1, 2 and 3, the locking mechanism 300 includes a threaded ferrule 310, a locking sleeve 320 and a pushing component 330, the threaded ferrule 310 is disposed on the valve body 100, one end of the threaded ferrule 310 is provided with a bump 311, the other end of the threaded ferrule 310 is provided with a locking hook 312, the locking hook 312 is connected with the valve body 100, the locking sleeve 320 is slidably sleeved on the valve body 100, a pressing block 321 is disposed at one end of the locking sleeve 320 close to the bump 311, the pushing component 330 includes a swinging ring 331, a cam 332 and a connecting shaft 333, the connecting shaft 333 is disposed on the valve body 100, the cam 332 is rotationally connected on the connecting shaft 333, the swinging ring 331 is disposed on the cam 332, the cam 332 is in transmission connection with the locking sleeve 320, a limiting groove 322 is formed in the locking sleeve 320, a limiting block 140 is disposed on the valve body 100, and the locking sleeve 320 slides on the valve body 100 through the limiting groove 322 and the limiting block 140.
When the steel cylinder is filled with compressed gas, the threaded cutting ferrule 310 is sleeved on the air inlet end of the steel cylinder, a worker rotates through moving the swinging ring 331, the cam 332 is driven to rotate in a conversion mode, the cam 332 drives the locking sleeve 320 to slide on the valve body 100, the pressing block 321 moves to the protruding block 311 and tightly presses the protruding block 311, the threaded cutting ferrule 310 is fixed on the air inlet end of the steel cylinder, compressed gas passes through the first gas channel 110 and is compressed into the steel cylinder through the second gas channel 210, and when the steel cylinder is filled with gas, the worker only needs to drive the locking sleeve 320 to move through rotating the swinging ring 331, the pressing block 321 tightly presses the protruding block 311, the threaded cutting ferrule 310 can be fixed on the air inlet end of the steel cylinder, the connection time of a steel cylinder valve and a hose connector is further shortened, and when a plurality of steel cylinders need to be filled with gas, the connection efficiency of the steel cylinder valve and the steel cylinder valve can be further improved.
Referring to fig. 3, the driving mechanism 400 includes a piston 410, a piston rod 420, a push rod 430, a baffle 440, a limiting ring 450 and a first spring 460, wherein the other end of the valve body 100 is provided with a first hole 120 and a second hole 130, the diameter of the first hole 120 is larger than that of the second hole 130, the first hole 120 is communicated with the second hole 130, the baffle 440 is disposed on the valve body 100, the baffle 440 seals the first hole 120, the valve body 100 is further provided with a compressed air inlet, the compressed air inlet is communicated with the first hole 120, the piston 410 is slidably disposed in the first hole 120, the piston rod 420 is slidably disposed in the second hole 130, the piston rod 420 is fixedly connected with the piston 410 in a coaxial manner, one end of the push rod 430 is connected with one end of the piston rod 420, the other end of the push rod 430 is connected with the valve core 200, the first spring 460 is sleeved on the piston rod 420, one end of the first spring 460 is abutted against the piston 410, the other end of the first spring 460 is abutted against the valve body 100, the piston 410 is slidably disposed in the first hole 120, and the limiting ring 450 is coaxially disposed on the valve body 100.
When high-pressure gas is filled into the steel cylinder, the valve body 100 is fixed on the gas filling end of the steel cylinder through the locking mechanism 300, compressed air is filled into the valve body 100 from a compressed air inlet formed in the valve body 100, at the moment, the air pressure in the first hole 120 is increased, the piston 410 drives the piston rod 420 to move away from the baffle 440, the piston rod 420 drives the ejector rod 430 to move, the ejector rod 430 drives the valve core 200 to move towards the gas filling end of the steel cylinder, the valve core 200 is abutted with the gas filling end of the steel cylinder, and then the high-pressure gas is filled into the steel cylinder through the first gas channel 110 on the valve body 100 and the second gas channel 210 on the valve core 200; the valve core 200 is driven by the piston 410, the piston rod 420 and the ejector rod 430, so that the valve core 200 is in closer contact with the air inlet end of the steel cylinder, the air leakage probability of the contact point between the air inlet end of the steel cylinder and the valve core 200 is further reduced, and the danger probability is further reduced; when the steel cylinder needs to be deflated, the threaded cutting sleeve 310 is sleeved on the air inlet end of the steel cylinder, compressed air is filled into the valve body 100 from the compressed air inlet formed in the valve body 100, at the moment, the air pressure in the first hole 120 is increased, the piston 410 drives the piston rod 420 to move in the direction away from the baffle 440, the piston rod 420 drives the ejector rod 430 to move, the ejector rod 430 drives the valve core 200 to move in the direction of the air inlet end of the steel cylinder, the valve core 200 is abutted with the air inlet end of the steel cylinder, and because the pressure at the air inlet end of the steel cylinder is larger when the steel cylinder is deflated, the valve core 200 is driven by the piston 410, the piston rod 420 and the ejector rod 430, so that the valve core 200 is in closer contact with the air inlet end of the steel cylinder, and the probability of air leakage of the contact point between the air inlet end of the steel cylinder and the valve core 200 is further reduced;
after the steel cylinder is inflated, the compressed air input from the compressed air inlet is withdrawn, so that the pressure in the first cavity is reduced, under the action of the elastic force of the first spring 460, the first spring 460 pushes the piston 410, the piston 410 drives the piston rod 420, the ejector rod 430 and the valve core 200 to move towards the baffle 440, so that the valve core 200 is separated from the air inlet end of the steel cylinder, the valve core 200 is retracted into the valve body 100, and then the locking assembly is opened, so that the valve body 100 is removed from the air inlet end of the steel cylinder; due to the arrangement of the first spring 460, after the steel cylinder is inflated, the valve core 200 can be retracted into the valve body 100, so that the probability that the valve core 200 is exposed to the outside is reduced, the probability that the valve core 200 is polluted is reduced, and the tightness between the valve core 200 and the air inlet end of the steel cylinder is improved when the steel cylinder is inflated next time.
Referring to fig. 2 and 3, the sealing mechanism 500 includes a first sealing assembly 510 and a second sealing assembly 520, the first sealing assembly 510 includes a first sealing ring 511, a second sealing ring 512, and a third sealing ring 513, the first sealing ring 511 is sleeved on one end of the valve core 200 near the ejector 430, the second sealing ring 512 is sleeved on one end of the valve core 200 far from the first sealing ring 511, and the third sealing ring 513 is sleeved on one end of the threaded ferrule 310 where the latch hook 312 is provided; the second sealing assembly 520 comprises a lock sleeve 521, a second spring 522 and a fourth sealing ring 523, wherein the lock sleeve 521 is sleeved on one end of the valve core 200 provided with the first sealing ring 511, the second spring 522 is sleeved on the valve core 200, one end of the second spring 522 is abutted against the valve body 100, the other end of the second spring 522 is abutted against the lock sleeve 521, the fourth sealing ring 523 is sleeved on the lock sleeve 521, and the fourth sealing ring 523 is abutted against the protruding block 311.
When the valve core 200 is in contact with the air inlet end of the steel cylinder, the valve core 200 is in closer contact with the air inlet end of the steel cylinder by the arrangement of the first sealing ring 511, so that the probability of gaps between the valve core 200 and the air inlet end of the steel cylinder is reduced, and the probability of air leakage is further reduced; the second sealing ring 512 is arranged, so that when the first spring 460 pushes the valve core 200 to move, the probability of a gap between the valve core 200 and the valve body 100 is reduced, the valve core 200 is in closer contact with the valve body 100, and the probability of air leakage of the valve body 100 is further reduced; one end of the third sealing ring 513 contacts with the threaded clamping sleeve 310, and the other end of the third sealing ring 513 contacts with the locking sleeve 320, so that friction force between the locking sleeve 320 and the threaded clamping sleeve 310 is reduced when the locking sleeve 320 moves on the valve body 100, and the locking sleeve 320 is easier to slide on the valve body 100; when the first sealing ring 511 is abutted against the air inlet end of the steel cylinder, the second spring 522 pushes the lock sleeve 521 to move towards the air inlet end of the steel cylinder, so that the fourth sealing ring 523 on the lock sleeve 521 is contacted with the protruding block 311, and the probability of gaps between the lock sleeve 521 and the protruding block 311 is further reduced, and the probability of leakage of compressed gas is further reduced; when the steel cylinder needs to be deflated, the valve body 100 is locked on the air inlet end of the steel cylinder through the locking sleeve 320, at the moment, the valve core 200 is tightly contacted with the air inlet end of the steel cylinder under the pushing of the piston rod 420, the second spring 522 pushes the locking sleeve 521, the fourth sealing ring 523 is contacted with the locking sleeve 320, the probability of gaps between the locking sleeve 320 and the locking sleeve 521 is further reduced, and the probability of air flowing into the atmosphere when the steel cylinder is deflated is further reduced.
The utility model relates to a pneumatic quick-mounting valve clamp, which comprises the following implementation principles:
when high-pressure gas is filled into the steel cylinder, the valve body 100 is fixed on the gas filling end of the steel cylinder through the locking mechanism 300, compressed air is filled into the valve body 100 from a compressed air inlet formed in the valve body 100, at the moment, the air pressure in the first hole 120 is increased, the piston 410 drives the piston rod 420 to move away from the baffle 440, the piston rod 420 drives the ejector rod 430 to move, the ejector rod 430 drives the valve core 200 to move towards the gas filling end of the steel cylinder, the valve core 200 is abutted with the gas filling end of the steel cylinder, and then the high-pressure gas is filled into the steel cylinder through the first gas channel 110 on the valve body 100 and the second gas channel 210 on the valve core 200; the valve core 200 is driven by the piston 410, the piston rod 420 and the ejector rod 430, so that the valve core 200 is in closer contact with the air inlet end of the steel cylinder, the air leakage probability of the contact point between the air inlet end of the steel cylinder and the valve core 200 is further reduced, and the danger probability is further reduced; when the steel cylinder needs to be deflated, the threaded cutting sleeve 310 is sleeved on the air inlet end of the steel cylinder, compressed air is filled into the valve body 100 from the compressed air inlet formed in the valve body 100, at the moment, the air pressure in the first hole 120 is increased, the piston 410 drives the piston rod 420 to move in the direction away from the baffle 440, the piston rod 420 drives the ejector rod 430 to move, the ejector rod 430 drives the valve core 200 to move in the direction of the air inlet end of the steel cylinder, the valve core 200 is abutted with the air inlet end of the steel cylinder, and because the pressure at the air inlet end of the steel cylinder is larger when the steel cylinder is deflated, the valve core 200 is driven by the piston 410, the piston rod 420 and the ejector rod 430, so that the valve core 200 is in closer contact with the air inlet end of the steel cylinder, and the probability of air leakage of the contact point between the air inlet end of the steel cylinder and the valve core 200 is further reduced;
after the steel cylinder is inflated, the compressed air input from the compressed air inlet is withdrawn, so that the pressure in the first cavity is reduced, under the action of the elastic force of the first spring 460, the first spring 460 pushes the piston 410, the piston 410 drives the piston rod 420, the ejector rod 430 and the valve core 200 to move towards the baffle 440, so that the valve core 200 is separated from the air inlet end of the steel cylinder, the valve core 200 is retracted into the valve body 100, and then the locking assembly is opened, so that the valve body 100 is removed from the air inlet end of the steel cylinder; due to the arrangement of the first spring 460, after the steel cylinder is inflated, the valve core 200 can be retracted into the valve body 100, so that the probability that the valve core 200 is exposed to the outside is reduced, the probability that the valve core 200 is polluted is reduced, and the tightness between the valve core 200 and the air inlet end of the steel cylinder is improved when the steel cylinder is inflated next time.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A pneumatic quick-assembling valve fixture is characterized in that: the valve comprises a valve body (100), a valve core (200), a locking mechanism (300) and a driving mechanism (400), wherein a first gas channel (110) is formed in the valve body (100), a second gas channel (210) is formed in the valve core (200), the valve core (200) is arranged in one end of the valve body (100) in a sliding mode, the first gas channel (110) is communicated with the second gas channel (210), a first hole (120) and a second hole (130) are formed in the other end of the valve body (100), the diameter of the first hole (120) is larger than that of the second hole (130), the first hole (120) is communicated with the second hole (130), and the locking mechanism (300) is used for locking the valve body (100) on an air inlet end of a steel cylinder;
the driving mechanism (400) comprises a piston (410), a piston rod (420), a push rod (430) and a baffle (440), the baffle (440) is arranged on the valve body (100), the baffle (440) is used for blocking the first hole (120), a compressed air inlet is further formed in the valve body (100), the compressed air inlet is communicated with the first hole (120), the piston (410) is slidably arranged in the first hole (120), the piston rod (420) is slidably arranged in the second hole (130), the piston rod (420) is fixedly connected with the piston (410) in a coaxial mode, one end of the push rod (430) is connected with one end, away from the piston (410), of the piston rod (420), and the other end of the push rod (430) is connected with the valve core (200).
2. The pneumatic quick valve fixture of claim 1, wherein: the driving mechanism (400) further comprises a first spring (460), the first spring (460) is sleeved on the piston rod (420), one end of the first spring (460) is abutted to the piston (410), and the other end of the first spring (460) is abutted to the valve body (100).
3. The pneumatic quick valve fixture of claim 1, wherein: locking mechanism (300) are including screw thread cutting ferrule (310), lock sleeve (320) and promotion subassembly (330), the one end of screw thread cutting ferrule (310) is provided with lug (311), the other end of screw thread cutting ferrule (310) is provided with latch hook (312), latch hook (312) are connected with valve body (100), lock sleeve (320) slip cap is established on valve body (100), lock sleeve (320) is provided with briquetting (321) near on the one end of lug (311), promote subassembly (330) setting on valve body (100), promote subassembly (330) and lock sleeve (320) transmission and be connected.
4. A pneumatic quick valve cartridge as defined in claim 3, wherein: the pushing assembly (330) comprises a swinging ring (331), a cam (332) and a connecting shaft (333), wherein the connecting shaft (333) is arranged on the valve body (100), the cam (332) is rotationally connected to the connecting shaft (333), the swinging ring (331) is arranged on the cam (332), and the cam (332) is in transmission connection with the locking sleeve (320).
5. A pneumatic quick valve cartridge as defined in claim 3, wherein: limiting grooves (322) are formed in the locking sleeve (320), limiting blocks (140) are arranged on the valve body (100), and the locking sleeve (320) slides on the valve body (100) through the limiting grooves (322) and the limiting blocks (140).
6. The pneumatic quick valve fixture of claim 1, wherein: still include sealing mechanism (500), sealing mechanism (500) include first seal assembly (510), first seal assembly (510) include first sealing washer (511) and second sealing washer (412), first sealing washer (511) cover is established on the one end that case (200) is close to ejector pin (430), second sealing washer (412) cover is established on the one end that case (200) kept away from first sealing washer (511).
7. The pneumatic quick valve cartridge of claim 6, wherein: the first sealing assembly (510) further comprises a third sealing ring (513), and the third sealing ring (513) is sleeved on one end of the threaded clamping sleeve (310) provided with the lock hook (312).
8. The pneumatic quick valve cartridge of claim 7, wherein: the sealing mechanism (500) further comprises a second sealing assembly (520), the second sealing assembly (520) comprises a lock sleeve (521), a second spring (522) and a fourth sealing ring (523), the lock sleeve (521) is sleeved on one end of the valve core (200) provided with the first sealing ring (511), the second spring (522) is sleeved on the valve core (200), one end of the second spring (522) is abutted to the valve body (100), the other end of the second spring (522) is abutted to the lock sleeve (521), the fourth sealing ring (523) is sleeved on the lock sleeve (521), and the fourth sealing ring (523) is abutted to the protruding block (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223498511.XU CN219140492U (en) | 2022-12-28 | 2022-12-28 | Pneumatic quick-mounting valve fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223498511.XU CN219140492U (en) | 2022-12-28 | 2022-12-28 | Pneumatic quick-mounting valve fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219140492U true CN219140492U (en) | 2023-06-06 |
Family
ID=86563636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223498511.XU Active CN219140492U (en) | 2022-12-28 | 2022-12-28 | Pneumatic quick-mounting valve fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219140492U (en) |
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2022
- 2022-12-28 CN CN202223498511.XU patent/CN219140492U/en active Active
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