CN112127886A - Water-gas linkage handle switch and pneumatic fretsaw - Google Patents
Water-gas linkage handle switch and pneumatic fretsaw Download PDFInfo
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- CN112127886A CN112127886A CN202010839628.6A CN202010839628A CN112127886A CN 112127886 A CN112127886 A CN 112127886A CN 202010839628 A CN202010839628 A CN 202010839628A CN 112127886 A CN112127886 A CN 112127886A
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- 239000007788 liquid Substances 0.000 claims abstract description 151
- 238000003860 storage Methods 0.000 claims description 40
- 230000000903 blocking effect Effects 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 17
- 238000005520 cutting process Methods 0.000 abstract description 15
- 239000003245 coal Substances 0.000 abstract description 10
- 239000000110 cooling liquid Substances 0.000 description 16
- 230000010485 coping Effects 0.000 description 16
- 238000007789 sealing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 210000003811 finger Anatomy 0.000 description 7
- 239000011550 stock solution Substances 0.000 description 7
- 210000003813 thumb Anatomy 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/22—Hand tools or hand-held power-operated tools specially adapted for dislodging minerals
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a water-gas linkage handle switch and a pneumatic wire saw, which belong to the technical field of coal mine mechanical equipment, the water-gas linkage handle switch comprises a handle body, the handle body is provided with an air inlet channel and an air outlet channel, a linkage channel is arranged between the air inlet channel and the air outlet channel, the air inlet channel, the air outlet channel and the linkage channel are communicated, a first movable plate is connected in the linkage channel in a sliding manner, the linkage channel is provided with a pressure relief hole, and when the first movable plate moves to the interval between the air inlet channel and the air outlet channel, the air outlet channel is closed; the handle body is also provided with a liquid inlet channel and a liquid discharge channel, and the handle body is provided with an adjusting device for opening and closing the liquid inlet channel and the exhaust channel simultaneously. The pneumatic scroll saw comprises the water-gas linkage handle switch. The wire saw cooling device has the advantages that the wire saw can be cooled in the cutting process, so that the cutting operation and the cooling operation can be carried out simultaneously, and the working efficiency is improved.
Description
Technical Field
The application relates to the technical field of coal mine mechanical equipment, in particular to a water-gas linkage handle switch and a pneumatic fretsaw.
Background
Coal is an important basic energy and an important raw material in China, the development of the coal industry supports the rapid development of national economy, and along with the increasing demand of the large industry on energy, the development of underground coal mining production and the great increase of the coal production capacity in recent years, the rapid progress of the coal mining technology is also promoted.
At present, in the coal mining process, a wire saw is needed for cutting operation. Wherein the pneumatic wire saw is a cutting tool which adopts an air compressor or a high-pressure air bottle to drive a pneumatic motor to run at a high speed so as to realize rapid and curve multi-angle cutting
When the pneumatic fretsaw is used for cutting, the saw blades and the saw blocks of the fretsaw continuously rub to generate a large amount of heat, the large amount of heat can be accumulated to generate local high-temperature conditions, and because gas is contained in a mine of a coal mine, the main component of the gas is methane, and the methane is flammable and can explode when meeting open fire after being mixed with air. When the fretsaw cutting operation needs to be carried out in flammable and explosive environments such as coal mines and the like, the cooling is usually carried out by directly pouring cooling water on saw blades of the fretsaw. When adopting this kind of mode cooling, when pouring the cooling water, need close the coping saw earlier, then pour the cooling water for cutting operation and cooling operation can not go on simultaneously, have the untimely condition of cooling, thereby reduce work efficiency.
Disclosure of Invention
To the not enough that prior art exists, the aim at of this application provides a water-gas linkage handle switch, and it has can drive the water-gas linkage for operation and cooling operation can go on simultaneously, improve work efficiency's advantage.
The technical purpose of the application is realized by the following technical scheme:
a water-gas linkage handle switch comprises a handle body, wherein the handle body is provided with an air inlet channel and an air outlet channel, a linkage channel is arranged between the air inlet channel and the air outlet channel, the air inlet channel, the air outlet channel and the linkage channel are communicated, a first movable plate is connected to the interior of the linkage channel in a sliding mode, a pressure relief hole is formed in the linkage channel, and when the first movable plate moves to a gap between the air inlet channel and the air outlet channel, the air outlet channel is closed; the handle body still is provided with inlet channel and flowing back passageway, the handle body is provided with the adjusting device who is used for opening and close inlet channel and exhaust passage simultaneously.
By adopting the technical scheme, when the handle is used, the liquid inlet channel and the exhaust channel are simultaneously opened through the adjusting device, cooling liquid enters through the liquid inlet channel and then is discharged through the liquid discharge channel, and a cooling passage is formed in the handle body under the action of the liquid inlet channel and the liquid discharge channel; simultaneously, gaseous inside that can get into the linkage passageway through inlet channel because when exhaust passage opened, the setting of first fly leaf did not hinder inlet channel and exhaust passage's intercommunication, inlet channel and exhaust passage and linkage passageway three intercommunication this moment for the inside gaseous of getting into the linkage passageway discharges through exhaust passage, thereby realizes the linkage of aqueous vapor, can cool off the operation in the operation, improves work efficiency.
The application is further configured to: a liquid storage cavity is arranged between the linkage channel and the liquid inlet channel and is communicated with the linkage channel and the liquid inlet channel, the adjusting device comprises a second movable plate which is arranged in the linkage channel in a sliding manner, the second movable plate is arranged between the first movable plate and the liquid storage cavity, and a connecting rod capable of driving the first movable plate and the second movable plate to move simultaneously is arranged between the second movable plate and the first movable plate; and an elastic resetting piece for driving the first movable plate to return to the original position is arranged in the linkage channel.
By adopting the technical scheme, the linkage channel and the liquid inlet channel are communicated through the liquid storage cavity, the cooling liquid is conveyed into the liquid inlet channel when the liquid storage device is used, so that a pressure difference is formed between the liquid storage cavity and the linkage channel, the second movable plate pushes the first movable plate to move under the pressure action of the cooling liquid, the first movable plate moves to one side close to the pressure relief hole, the first movable plate is moved to the position where the first movable plate is arranged, the communication between the air inlet channel and the exhaust channel is not obstructed, and the communication of an air path is realized while the cooling liquid is introduced; when the conveying of coolant liquid is closed, the first movable plate returns to the original position under the action of the elastic reset piece, so that the air inlet channel and the exhaust channel are respectively arranged on two sides of the first movable plate, the air channel is disconnected while the water channel is disconnected, the linkage of water and air is realized, the cooling operation can be performed while the operation is performed, and the working efficiency is improved.
The application is further configured to: and a limiting mechanism used for limiting the moving distance of the first movable plate is arranged in the linkage channel.
By adopting the technical scheme, when the linkage channel is communicated with the liquid inlet channel, the cooling liquid enters the liquid inlet channel or the exhaust channel due to the fact that the moving distance of the first movable plate is too large.
The application is further configured to: the limiting mechanism comprises a plunger fixedly arranged on the first movable plate, the linkage channel is provided with a limiting block, the limiting block is provided with a limiting hole, the end part of the plunger is inserted into the opening of the limiting hole, and the plunger can move along the axis direction of the limiting hole; when one end of the plunger, which is far away from the first movable plate, abuts against the bottom wall of the limiting hole, the first movable plate stops moving, and the arrangement of the first movable plate does not hinder the communication of the air inlet channel, the exhaust channel and the linkage channel.
Through adopting above-mentioned technical scheme, can drive the plunger and remove simultaneously when first fly leaf removes for the tip of plunger removes to the one side that is close to spacing hole diapire, and when the tip of plunger and spacing hole diapire contact, the stop motion of first fly leaf, thereby the realization is injectd the position of first fly leaf.
The application is further configured to: the adjusting device comprises a liquid stopping valve assembly arranged inside the liquid inlet channel, and when the liquid stopping valve assembly is closed, the first movable plate is located in the interval between the air inlet channel and the air outlet channel.
Through adopting above-mentioned technical scheme, through setting up the circulation of the inside liquid of liquid inlet channel of liquid stop valve subassembly control to the realization is to the injection of the inside coolant liquid of handle body, realizes the cooling to operating condition.
The application is further configured to: the liquid stop valve assembly comprises a guide block, a blocking block and a pull rod, wherein the guide block, the blocking block and the pull rod are fixedly arranged on the handle body, the guide block and the blocking block are arranged along the axis direction of the liquid inlet channel, the blocking block is connected with the liquid inlet channel in a sliding mode, and the end portion of the pull rod penetrates through the guide block and then is fixedly connected with the blocking block; the handle body is provided with a liquid inlet, the liquid inlet is communicated with the liquid inlet channel, and the liquid inlet channel is closed when the blocking block is blocked at the communication position of the liquid inlet and the liquid inlet channel.
Through adopting above-mentioned technical scheme, during the use, the control pull rod, pull rod drive sprue remove simultaneously, and the sprue removes to one side that is close to the guide block for the sprue is relieved the shutoff to the intercommunication department of inlet and inlet channel, and the coolant liquid of being convenient for passes through the inside that the inlet got into inlet channel, and operating personnel can the one-hand operation, realizes the injection into the coolant liquid, and convenient operation improves work efficiency.
The application is further configured to: and a second compression spring used for keeping the blocking block blocked at the communication position of the liquid inlet and the liquid inlet channel is arranged between the guide block and the blocking block.
By adopting the technical scheme, when the control on the pull rod is removed, the second compression spring can drive the blocking block to return to the original position, so that the blocking block blocks the communication position of the liquid inlet and the liquid inlet channel, and the blocking block is kept blocked at the connection position of the liquid inlet and the liquid inlet channel.
The application is further configured to: the outer wall of sprue is provided with the bar groove along its axis direction, the bar groove is a plurality of, and is a plurality of the bar groove uses the sprue axis to be the circumference array as the center.
Through adopting above-mentioned technical scheme, reduce the thrust of water pressure to the pull rod, avoid the second compression spring inefficacy.
The application is further configured to: the handle body rotates to be connected with and breaks the piece off with the fingers and thumb, the handle body is provided with and supplies to break the piece pivoted space of stepping down with the fingers and thumb, break the piece off with the fingers and thumb and seted up the groove of sliding, the axis in groove of sliding and the axis of pull rod set up perpendicularly, and the pull rod runs through and is provided with the slider along its radial direction behind the groove of sliding.
Through adopting above-mentioned technical scheme, press during the use and break the piece off with the fingers and thumb, break the piece off with the fingers and thumb and rotate around its rotation center, break the piece pivoted in-process off with the fingers and thumb and drive the slider and remove along the axis direction in groove that slides, realize the removal to the pull rod, through breaking the setting of piece off with the fingers and thumb, increase the active area to the pull rod, the drive pull rod of being convenient for removes. On the other hand, the pull rod can be pulled only by one hand, and the operation is simple.
An object of this application is to provide a pneumatic coping saw, it has can drive the aqueous vapor linkage for operation and cooling operation can go on simultaneously, improve work efficiency's advantage.
The technical purpose of the application is realized by the following technical scheme:
the utility model provides a pneumatic coping saw, includes the coping saw body, the coping saw body is provided with above-mentioned aqueous vapor linkage handle switch.
Through adopting above-mentioned technical scheme, when using pneumatic coping saw, open aqueous vapor linkage handle switch, make the aqueous vapor linkage, when cooling water gets into inlet channel, gaseous inside that gets into linkage channel through inlet channel, then gaseous carry to pneumatic coping saw through exhaust passage, cut the operation with the drive pneumatic coping saw, the inside coolant liquid in stock solution chamber can reduce the temperature around the pneumatic coping saw simultaneously, thereby can cool off the pneumatic coping saw at pneumatic coping saw cutting in-process, make cutting operation and cooling operation can go on simultaneously, and the work efficiency is improved.
In summary, the present application has the following beneficial effects:
firstly, a liquid inlet channel and an exhaust channel are opened simultaneously through an adjusting device, and heat near a handle body can be taken away in the process that cooling liquid passes through the liquid inlet channel and the liquid discharge channel, so that the purpose of cooling operation is achieved; meanwhile, when the exhaust channel is opened, the air inlet channel, the exhaust channel and the linkage channel are communicated, so that gas entering the linkage channel is exhausted through the exhaust channel, the linkage of water and gas is realized, the cooling operation can be performed while the operation is performed, and the working efficiency is improved;
secondly, the linkage channel and the liquid inlet channel are communicated through the liquid storage cavity, and when the cooling liquid is used, the cooling liquid is conveyed into the liquid inlet channel, so that a pressure difference is formed between the liquid storage cavity and the linkage channel, the liquid inlet channel and the exhaust channel are opened or closed simultaneously under the action of the pressure difference, and the linkage of water and air is realized under the action of water;
thirdly, the opening and closing of the communication position of the liquid inlet channel and the liquid storage cavity are controlled through the liquid stopping valve assembly, so that the opening and closing of the water-gas linkage handle switch are conveniently realized, the operation and the cooling operation can be simultaneously carried out, and the operation is convenient;
fourth, through opening and closing of aqueous vapor linkage handle switch drive pneumatic coping saw, can the pneumatic coping saw open the during operation simultaneously, the coolant liquid passes through the handle body, can cool off the pneumatic coping saw at the pneumatic coping saw cutting in-process, guarantees the security of pneumatic coping saw cutting in-process.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A in FIG. 2;
FIG. 4 is a bottom view of FIG. 1;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic view of a connection relationship between the first movable plate, the second movable plate, the connecting rod, the first compression spring, the plunger, and the limiting block in the embodiment of the present application;
FIG. 7 is a schematic diagram of the overall structure of a liquid stop valve assembly in an embodiment of the present application.
In the figure, 1, a handle body; 11. a horizontal portion; 12. a vertical portion; 13. a space of abdicating; 14. a handle; 15. a hand-held cavity; 16. an end cap; 21. a linkage channel; 211. a pressure relief vent; 22. an air intake passage; 23. an exhaust passage; 24. a liquid storage cavity; 241. a bevel; 25. a liquid inlet channel; 251. a liquid inlet; 252. an upper cavity; 26. a liquid discharge channel; 3. an adjustment device; 31. a first movable plate; 311. a first seal ring; 312. a first retainer ring; 32. a second movable plate; 321. a second seal ring; 322. a second retainer ring; 33. a connecting rod; 4. a limiting mechanism; 41. a first compression spring; 42. a plunger; 43. a limiting block; 431. a limiting hole; 5. a liquid stop valve assembly; 51. blocking; 511. a stop block is shielded; 512. a strip-shaped groove; 52. a pull rod; 521. a slider; 53. a guide block; 54. breaking off the block; 541. a sliding groove; 55. a second compression spring; 56. a flow guide pipe; 561. and (4) a liquid through hole.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, a water-gas linked handle switch is applied to a pneumatic wire saw and can supply gas to a wire saw motor in the pneumatic wire saw to drive the wire saw to perform cutting operation. Including handle body 1, handle body 1 includes horizontal part 11 and vertical portion 12, and the whole cross-section that horizontal part 11 and vertical portion 12 constitute is the setting of L type, and handle body 1 has handle 14 in the opening part fixed mounting of L type, and handle 14 and handle body 1 interval set up and enclose into handheld chamber 15.
Referring to fig. 2 and 3, the horizontal portion 11 of the handle body 1 is provided with a linkage channel 21, the linkage channel 21 is arranged in a cylindrical shape, the linkage channel 21 is arranged in a hollow shape with an opening at one side, the linkage channel 21 is arranged along the length direction of the horizontal portion 11 of the handle body 1, an end cover 16 is fixedly installed at the opening of the linkage channel 21 of the handle body 1, and the end cover 16 seals the opening of the linkage channel 21, so that the sealing state of the linkage channel 21 is maintained. The handle body 1 is provided with a pressure relief hole 211 on the end cover 16, and the pressure relief hole 211 is communicated with the linkage channel 21.
The handle body 1 is provided with an air inlet channel 22 and an air outlet channel 23, the air inlet channel 22 is communicated with the linkage channel 21, the air outlet channel 23 is communicated with the linkage channel 21, the air inlet channel 22 and the air outlet channel 23 are respectively arranged at two sides of the linkage channel 21, and the air inlet channel 22, the air outlet channel 23 and the linkage channel 21 are communicated.
The handle body 1 is provided with a liquid inlet channel 25, a through hole is formed in one side, facing the liquid inlet channel 25, of the linkage channel 21, the aperture of the through hole is smaller than the inner diameter of the linkage channel 21, the through hole and the end cover 16 are oppositely arranged, and the liquid inlet channel 25 is communicated with the linkage channel 21 under the action of the through hole. Handle body 1 is provided with stock solution chamber 24 in inlet channel 25 and linkage channel 21's intercommunication department, and stock solution chamber 24 is the annular setting, and the axis of stock solution chamber 24 and linkage channel 21's axis coincidence, the internal diameter of stock solution chamber 24 are greater than the diameter of through-hole, and the internal diameter of stock solution chamber 24 is less than linkage channel 21's internal diameter, inlet channel 25 and stock solution chamber 24 intercommunication. The communicating part of the liquid storage cavity 24 and the linkage channel 21 is provided with an inclined surface 241, and the inclined surface 241 is obliquely arranged from inside to outside at one side far away from the axis of the liquid storage cavity 24.
Referring to fig. 4 and 5, a liquid discharge channel 26 is disposed at the communication position of the liquid storage cavity 24 and the linkage channel 21 of the handle body 1, the liquid inlet channel 25, the liquid discharge channel 26, the linkage channel 21 and the liquid storage cavity 24 are communicated, and the aperture of the liquid discharge channel 26 is smaller than that of the liquid storage cavity 24.
Referring to fig. 3, a first flap 31 is slidably connected to the inside of the linkage channel 21, the first flap 31 is disposed in a circular shape, and the diameter of the first flap 31 is equal to the inner diameter of the linkage channel 21. When the water and gas linkage handle switch is turned off, the first flap 31 is located at the interval between the air inlet passage 22 and the air outlet passage 23, and at this time, the connection ends of the air inlet passage 22 and the linkage passage 21 and the connection ends of the air outlet passage 23 and the linkage passage 21 are respectively arranged at both sides of the first flap 31.
Referring to fig. 3 and 6, a first annular mounting groove is formed at an edge of the first movable plate 31, and an opening end of the first annular mounting groove faces an inner wall of the linkage channel 21. A first sealing ring 311 and a first retaining ring 312 are in interference fit with the inner wall of the first annular mounting groove, the first retaining ring 312 and the first sealing ring 311 face one side of the second movable plate 32, and the first retaining ring 312 is arranged to protect the first sealing ring 311 and reduce extrusion and impact acting on the first sealing ring 311; the first seal ring 311 can seal a gap between the first flap 31 and the linkage passage 21.
Referring to fig. 3, the handle body 1 is provided with an adjusting means 3 for driving the first flap 31 to slide in the axial direction of the linkage channel 21. The adjusting device 3 includes a second movable plate 32 slidably disposed inside the linkage channel 21, the second movable plate 32 is disposed in a circular shape, a diameter of the second movable plate 32 is equal to an inner diameter of the linkage channel 21, the first movable plate 31 and the second movable plate 32 are disposed in parallel and at intervals inside the linkage channel 21, the second movable plate 32 is disposed on one side of the linkage channel 21 facing the liquid storage cavity 24, and the second movable plate 32 can seal a communication position between the linkage channel 21 and the liquid storage cavity 24. When the cooling liquid is injected through the liquid inlet channel 25, the cooling liquid enters the interior of the liquid storage cavity 24, and a water pressure difference is formed between the liquid storage cavity 24 and the linkage channel 21, and the second movable plate 32 can be pushed to move to the side close to the first movable plate 31 under the action of the water pressure difference.
Referring to fig. 3 and 6, a second annular mounting groove is formed at an edge of the second movable plate 32, and an opening end of the second annular mounting groove faces an inner wall of the linkage channel 21. The inner wall of the second annular mounting groove is in interference fit with a second sealing ring 321 and a second retaining ring 322, the second retaining ring 322 and the second sealing ring 321 are far away from one side of the first movable plate 31, and the second retaining ring 322 is arranged to protect the second sealing ring 321 and reduce extrusion and impact force acting on the second sealing ring 321; the second packing 321 seals a gap between the second flap 32 and the linkage passage 21.
A connecting rod 33 capable of driving the first movable plate 31 and the second movable plate 32 to move simultaneously is disposed between the first movable plate 31 and the second movable plate 32, one end of the connecting rod 33 is welded to a center of the first movable plate 31, and the other end of the connecting rod 33 is welded to a center of the second movable plate 32, when the second movable plate 32 moves, the second movable plate 32 pushes the first movable plate 31 to move synchronously through the connecting rod 33, so that the first movable plate 31 moves to a side close to the end cover 16.
Referring to fig. 3, an elastic restoring member, which is a first compression spring 41, driving the first movable plate 31 to restore to the original position is disposed between the end cover 16 and the first movable plate 31.
Referring to fig. 3, a limiting mechanism 4 for limiting the moving distance of the first movable plate 31 and the second movable plate 32 is further disposed between the end cover 16 and the first movable plate 31.
The limiting mechanism 4 comprises a plunger 42 welded at the center of the first movable plate 31, the plunger 42 and the connecting rod 33 are respectively arranged at two sides of the first movable plate 31, and the axis of the plunger 42 coincides with the axis of the connecting rod 33. When the first movable plate 31 is located at the interval between the intake passage 22 and the exhaust passage 23, the end of the plunger 42 is inserted into the opening of the limiting hole 431, and the end of the plunger 42 and the bottom wall of the limiting hole 431 are arranged at intervals, the plunger 42 can move along the axial direction of the limiting hole 431, and when one end of the plunger 42, which is far away from the first movable plate 31, abuts against the bottom wall of the limiting hole 431, the first movable plate 31 stops moving, at this time, the arrangement of the first movable plate 31 does not hinder the communication of the intake passage 22, the exhaust passage 23 and the linkage passage 21, so that the exhaust passage 23 can supply air to the wire saw motor to drive the pneumatic wire saw to work.
With reference to fig. 3 and 7, the adjusting device 3 further includes a liquid stop valve assembly 5 disposed inside the liquid inlet channel 25, when the liquid stop valve assembly 5 is closed, the cooling liquid is prevented from entering the interior of the liquid storage cavity 24, the first flap 31 is located at the interval between the air inlet channel 22 and the air outlet channel 23, and the second flap 32 is blocked at the communication position between the liquid storage cavity 24 and the linkage channel 21.
Referring to fig. 3 and 7, the liquid stop valve assembly 5 includes a blocking piece 51, a pull rod 52 and a guide piece 53, the guide piece 53 and the blocking piece 51 are arranged at intervals along the axial direction of the liquid inlet channel 25, the guide piece 53 is sealed at the opening of the liquid inlet channel 25 far away from the liquid storage cavity 24, and the guide piece 53 is connected with the handle body 1 at the connection part through threads. The guide block 53 has been seted up at its central department the guiding hole, and the center of guiding hole center and inlet channel 25 and liquid storage cavity 24 intercommunication department is in a straight line, and the shutoff of shutoff piece 51 is in inlet channel 25 and liquid storage cavity 24 intercommunication department, and the cross-section of shutoff piece 51 is the back taper setting, and the periphery wall of shutoff piece 51 and the laminating of inlet channel 25 lower extreme open-ended internal perisporium.
The pull rod 52 and the vertical portion 12 of the handle body 1 are arranged in parallel, the upper end of the pull rod 52 is located outside the handle body 1, the handle body 1 is provided with a yielding space 13 at the joint of the handle body and the pull rod 52, the inside of the yielding space 13 is rotatably connected with a snapping block 54, the cross section of the snapping block 54 is arranged in an L shape, the horizontal portion 11 of the snapping block 54 is provided with a sliding groove 541, the sliding groove 541 is arranged along the length direction of the horizontal portion 11 of the snapping block 54, the upper end of the pull rod 52 penetrates through the sliding groove 541 and then is provided with a sliding block 521 along the radial direction thereof, and the sliding block 521 is in threaded connection with the pull rod 52. The axis of the sliding groove 541 is perpendicular to the axis of the pull rod 52.
The handle body 1 is provided with a liquid inlet 251, and the liquid inlet 251 is communicated with the liquid inlet channel 25. The lower end of the pull rod 52 penetrates through the guide block 53 and then is in threaded connection with the blocking block 51. The end of the block 51 connected with the pull rod 52 is connected with a blocking block 511 through a thread, when the block 51 blocks the connection between the liquid inlet channel 25 and the liquid storage cavity 24, the blocking block 511 covers the liquid inlet 251, and the blocking block 511 is connected with the lower end of the pull rod 52 through a thread.
Referring to fig. 3, an upper cavity 252 is defined between the shielding block 511 and the guide block 53, a second compression spring 55 is fixedly installed inside the upper cavity 252, the second compression spring 55 is sleeved outside the pull rod 52, when the second compression spring 55 is in a natural state, the blocking block 51 blocks a communication position between the liquid inlet channel 25 and the liquid storage cavity 24, the shielding block 511 covers the liquid inlet 251, and at this time, the cooling liquid cannot enter the liquid storage cavity 24. When the pull rod 52 is pulled upwards, the pull rod 52 drives the blocking piece 511 and the blocking piece 51 to move simultaneously, the second compression spring 55 is extruded, and at the moment, the blocking piece 51 and one side of the liquid inlet channel 25, which is close to the liquid storage cavity 24, form a lower cavity.
Combine fig. 3 and fig. 7, it is the cylinder type setting to hide dog 511, the bar groove 512 has been seted up along its axis direction to hide the periphery wall of dog 511, the direction of seting up of bar groove 512 is unanimous with inlet channel 25's axis side direction, bar groove 512 is a plurality of, a plurality of bar grooves 512 are circumference array with the axis that shelters from dog 511 as the center, when second compression spring 55 is in the unnatural state, cavity 252 and lower cavity in the bar groove 512 intercommunication, reduce the thrust of water pressure to pull rod 52, avoid second compression spring 55 to become invalid.
One side of the plugging block 51 far away from the pull rod 52 is fixedly provided with a guide pipe 56, the guide pipe 56 is arranged in a hollow mode, one side of the guide pipe 56 close to the plugging block 51 is provided with a liquid through hole 561, the liquid through hole 561 is communicated with the guide pipe 56, the axis of the liquid through hole 561 is perpendicular to the axis of the guide pipe 56, when the second compression spring 55 is in an unnatural state, the liquid inlet hole is communicated with the liquid through hole 561, and liquid can flow to the interior of the liquid storage cavity 24 along the guide pipe 56 through the liquid inlet hole and the liquid through hole 561 in a sequential mode.
The implementation principle of the embodiment is as follows: when the liquid storage device is used, the snapping block 54 is pressed, the snapping block 54 rotates around the rotation center of the snapping block, the sliding block 521 is driven to move along the axis direction of the sliding groove 541 in the rotating process of the snapping block 54, the pull rod 52 moves, the pull rod 52 drives the blocking block 51 to move simultaneously, the blocking block 51 moves towards one side close to the guide block 53 and simultaneously extrudes the second compression spring 55, the blocking of the communication position of the liquid inlet channel 25 and the liquid storage cavity 24 is removed in the moving process of the blocking block 51, cooling liquid is injected into the liquid inlet channel 25 through the liquid inlet 251, the cooling liquid enters the liquid storage cavity 24 through the communication position of the liquid inlet channel 25 and the liquid storage cavity 24, and the liquid in the liquid storage cavity 24 is discharged through the liquid discharge channel 26, so that the liquid in the liquid storage cavity 24 is kept in a cooling state all the time; with the injection of the cooling liquid in the liquid storage cavity 24, a water pressure difference is formed between the liquid storage cavity 24 and the linkage channel 21, under the action of the water pressure difference, the first movable plate 31 and the second movable plate 32 are pushed to move along the inner wall of the linkage channel 21 to the side close to the end cover 16 at the same time, the first movable plate 31 presses the first compression spring 41, the first movable plate 31 drives the plunger 42 to move along the axial direction of the limiting hole 431, when one end of the plunger 42 far away from the first movable plate 31 abuts against the bottom wall of the limiting hole 431, the first movable plate 31 stops moving, at the moment, the arrangement of the first movable plate 31 does not prevent the communication of the air inlet channel 22, the air outlet channel 23 and the linkage channel 21, the air is filled into the linkage channel 21 through the air inlet channel 22, the air is discharged from the air outlet channel 23 after passing through the air inlet channel 22 and the linkage channel 21 in sequence, the wire saw is driven to cut, meanwhile, the cooling liquid in the liquid storage cavity 24 can reduce the temperature around the wire saw, so that the wire saw can be cooled in the cutting process, the cutting operation and the cooling operation can be carried out simultaneously, and the working efficiency is improved.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A water-gas linkage handle switch comprises a handle body (1), wherein the handle body (1) is provided with an air inlet channel (22) and an exhaust channel (23), and is characterized in that a linkage channel (21) is arranged between the air inlet channel (22) and the exhaust channel (23), the air inlet channel (22), the exhaust channel (23) and the linkage channel (21) are communicated, a first movable plate (31) is connected to the inside of the linkage channel (21) in a sliding manner, a pressure relief hole (211) is formed in the linkage channel (21), and when the first movable plate (31) moves to a gap between the air inlet channel (22) and the exhaust channel (23), the exhaust channel (23) is closed; the handle body (1) is further provided with a liquid inlet channel (25) and a liquid discharge channel (26), and the handle body (1) is provided with an adjusting device (3) for opening and closing the liquid inlet channel (25) and the air discharge channel (23) simultaneously.
2. The water-gas linkage handle switch according to claim 1, wherein a liquid storage cavity (24) is arranged between the linkage channel (21) and the liquid inlet channel (25), the liquid storage cavity (24) is communicated with the linkage channel (21) and the liquid inlet channel (25), the adjusting device (3) comprises a second movable plate (32) slidably arranged inside the linkage channel (21), the second movable plate (32) is arranged between the first movable plate (31) and the liquid storage cavity (24), and a connecting rod (33) capable of driving the second movable plate (32) and the first movable plate (31) to move simultaneously is arranged between the second movable plate (32) and the first movable plate (31); an elastic resetting piece for driving the first movable plate (31) to return to the original position is arranged in the linkage channel (21).
3. The water-gas linkage handle switch according to claim 1, wherein a limiting mechanism (4) for limiting the moving distance of the first movable plate (31) is arranged in the linkage channel (21).
4. The water-gas linkage handle switch according to claim 3, wherein the limiting mechanism (4) comprises a plunger (42) fixedly arranged on the first movable plate (31), the linkage channel (21) is provided with a limiting block (43), the limiting block (43) is provided with a limiting hole (431), the end of the plunger (42) is inserted into the opening of the limiting hole (431), and the plunger (42) can move along the axial direction of the limiting hole (431); when one end of the plunger (42) far away from the first movable plate (31) abuts against the bottom wall of the limiting hole (431), the first movable plate (31) stops moving, and at the moment, the arrangement of the first movable plate (31) does not prevent the communication of the air inlet channel (22), the air outlet channel (23) and the linkage channel (21).
5. Water-gas ganged handle switch according to claim 1, characterized in that the adjusting device (3) comprises a liquid stop valve assembly (5) arranged inside the liquid inlet channel (25), the first flap (31) being located in the space between the air inlet channel (22) and the air outlet channel (23) when the liquid stop valve assembly (5) is closed.
6. The water-gas linkage handle switch according to claim 5, wherein the liquid stopping valve assembly (5) comprises a guide block (53), a block (51) and a pull rod (52), the guide block (53) and the block (51) are fixedly arranged on the handle body (1), the guide block (53) and the block (51) are arranged along the axial direction of the liquid inlet channel (25), the block (51) is connected with the liquid inlet channel (25) in a sliding manner, and the end part of the pull rod (52) penetrates through the guide block (53) and is fixedly connected with the block (51); the handle body (1) is provided with a liquid inlet (251), the liquid inlet (251) is communicated with the liquid inlet channel (25), and when the blocking block (51) is blocked at the communication position of the liquid inlet (251) and the liquid inlet channel (25), the liquid inlet channel (25) is closed.
7. The water-gas linkage handle switch according to claim 6, wherein a second compression spring (55) is arranged between the guide block (53) and the block (51) for keeping the block (51) blocked at the communication position of the liquid inlet (251) and the liquid inlet channel (25).
8. The water-gas linkage handle switch according to claim 6, wherein the outer wall of the block (51) is provided with a plurality of strip-shaped grooves (512) along the axial direction thereof, and the plurality of strip-shaped grooves (512) are circumferentially arrayed with the axial direction of the block (51) as the center.
9. The water-gas linkage handle switch according to claim 1, wherein the handle body (1) is rotatably connected with an arm-wrestling block (54), the handle body (1) is provided with a space (13) for the arm-wrestling block (54) to rotate, the arm-wrestling block (54) is provided with a sliding groove (541), an axis of the sliding groove (541) and an axis of the pull rod (52) are vertically arranged, and the pull rod (52) is provided with a sliding block (521) in a radial direction after penetrating through the sliding groove (541).
10. A pneumatic jigsaw comprising a jigsaw body, wherein the jigsaw body is provided with a water and gas linked handle switch according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839628.6A CN112127886B (en) | 2020-08-19 | 2020-08-19 | Water-gas linkage handle switch and pneumatic fretsaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839628.6A CN112127886B (en) | 2020-08-19 | 2020-08-19 | Water-gas linkage handle switch and pneumatic fretsaw |
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| Publication Number | Publication Date |
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| CN112127886A true CN112127886A (en) | 2020-12-25 |
| CN112127886B CN112127886B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010839628.6A Active CN112127886B (en) | 2020-08-19 | 2020-08-19 | Water-gas linkage handle switch and pneumatic fretsaw |
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| CN (1) | CN112127886B (en) |
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| CN112127886B (en) | 2022-10-14 |
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