CN211468900U - Fire extinguisher safety pressure device - Google Patents
Fire extinguisher safety pressure device Download PDFInfo
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- CN211468900U CN211468900U CN201922245694.6U CN201922245694U CN211468900U CN 211468900 U CN211468900 U CN 211468900U CN 201922245694 U CN201922245694 U CN 201922245694U CN 211468900 U CN211468900 U CN 211468900U
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- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a safe pressurizing device of a fire extinguisher, which comprises a supporting frame; a first cylinder barrel is arranged on the support frame, and a high-pressure air source is connected inside the first cylinder barrel; a valve core is matched in the first cylinder barrel in a sliding manner, and a valve cavity is formed in the valve core; the valve core is provided with a gas nozzle hole which penetrates through the valve cavity and the end part of the valve core corresponding to the opening; an inflation nozzle is in sliding fit with the air nozzle hole, one end of the inflation nozzle is arranged in the valve cavity, and the other end of the inflation nozzle is arranged outside the valve core; the end part of the charging connector in the valve cavity is closed, and a resetting device is arranged on the part of the charging connector in the valve cavity; a through gas injection hole is formed in the side wall of the charging connector and is arranged inside the gas nozzle hole; and a power device for driving the valve core to slide is also arranged in the first cylinder barrel. The utility model discloses a case in the first cylinder of power device control removes, makes the charging connector in the case can automatic inflation after supporting on the inflation inlet of fire extinguisher jar, operates convenient and fast more.
Description
Technical Field
The utility model belongs to the technical field of fire extinguisher pressure device's technique and specifically relates to a fire extinguisher safety pressure device is related to.
Background
After the dry powder fire extinguisher is filled with dry powder, high-pressure gas needs to be injected into a fire extinguisher tank body to complete pressurization; when the fire extinguisher is used, the high-pressure gas brings out the dry powder from the nozzle to extinguish the flame.
At present, patent document with the publication number of CN203598395U discloses an inflation clamping and fixing device for a fire extinguisher, which comprises a bottom plate, and a first upright post and a second upright post respectively arranged at two sides of the upper end of the bottom plate, wherein the upper ends of the opposite sides of the first upright post and the second upright post are provided with an inflation nozzle, the lower ends of the first upright post and the second upright post are provided with a fixing slip, the inflation nozzle is communicated with an air source through an air pipe, the air pipe is provided with a valve arranged in the bottom plate, one side of the bottom plate, which is close to the second upright post, is provided with an inflation pedal, the inflation pedal is connected; the side opposite to the first upright post and the second upright post is provided with a movable slip, and the fire extinguisher bottle body can be clamped between the fixed slip and the movable slip by controlling the movable slip.
The pressurized clamping and fixing device for the fire extinguisher has the following defects: when pressurizing the fire extinguisher tank, need drive earlier and remove the slips and press the fire extinguisher tank on fixed slips, make the fixed back of fire extinguisher, the rethread is trampled and is aerifyd the footboard and open the trachea, and then aerifys in to the fire extinguisher tank, and operating procedure is loaded down with trivial details, has reduced production efficiency.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the above-mentioned prior art, the utility model aims at providing a fire extinguisher safety pressure device, its case through in the first cylinder of power device control removes, makes the charging connector in the valve core can aerify in the fire extinguisher jar after supporting on the inflation inlet of fire extinguisher jar promptly automatically, operates convenient and fast more.
The above object of the present invention is achieved by the following technical solutions:
a fire extinguisher safety pressurization device comprises a support frame; the support frame is provided with a first cylinder, one end of the first cylinder is closed, the other end of the first cylinder is provided with an opening, and a high-pressure air source is connected inside the first cylinder; the first cylinder barrel is matched with a valve core in a sliding mode, a valve cavity is formed in the valve core, and the valve cavity is communicated with the inside of the first cylinder barrel; the valve core is provided with a gas nozzle hole which penetrates through the valve cavity and the end part of the valve core corresponding to the opening; an inflation nozzle is in sliding fit with the air nozzle hole, one end of the inflation nozzle is arranged in the valve cavity, and the other end of the inflation nozzle is arranged outside the valve core; the end part of the charging connector, which is positioned in the valve cavity, is closed, and a resetting device is arranged on the part of the charging connector, which is positioned in the valve cavity; a through gas injection hole is formed in the side wall of the charging connector and is formed in the gas nozzle hole; and a power device capable of driving the valve core to slide is further arranged in the first cylinder barrel.
Through adopting the above-mentioned technical scheme, when aerifing in the fire extinguisher jar, aim at the charging connector with the inflation inlet of fire extinguisher jar, it removes to the open-ended direction to promote the case through power device, the case drives the charging connector and removes to the inflation inlet department of fire extinguisher jar, when the charging connector supports on the inflation inlet of fire extinguisher jar, the fire extinguisher jar will promote the charging connector to case inside, thereby make the gas injection hole remove in the valve pocket, the charging connector inner circle passes through the gas injection hole and directly communicates with high pressurized air source this moment, high pressurized air source can aerify in the fire extinguisher jar through the charging connector is automatic, inflation operation only needs one step can realize, convenient and fast more operates.
The utility model discloses a further set up to: a fixed baffle is arranged in the first cylinder barrel and divides the first cylinder barrel into a first chamber communicated with the opening and a second chamber far away from the opening; the valve core is arranged in the first cavity; the power device comprises a second cylinder barrel arranged in the second chamber, the second cylinder barrel is of a closed structure, and the second cylinder barrel is fixed on the fixed baffle; the power device also comprises a piston arranged in the second cylinder, the piston is in sliding fit in the second cylinder, a push rod is fixedly arranged on the surface of the piston close to the fixed baffle, the end part of the push rod penetrates through the fixed baffle and extends into the first cavity, and the end part of the push rod positioned in the first cavity is fixed on the valve core; the piston divides the second chamber into an expansion chamber far away from the fixed baffle and a reset chamber close to the fixed baffle, and the expansion chamber is connected with a high-pressure air source; and a cut-off device capable of controlling the communication and disconnection between the expansion chamber and the outside of the first cylinder barrel is arranged on the second cylinder barrel.
By adopting the technical scheme, when the valve core needs to be pushed to move, the expansion chamber is sealed by the cut-off device, and the expansion chamber is connected with the high-pressure air source, so that the high-pressure air source pushes the piston to drive the piston rod to move towards the opening of the first cylinder barrel, and further pushes the valve core to move towards the opening of the first cylinder barrel; when the piston needs to be reset, the expansion valve is communicated with the outside of the first cylinder barrel through the cut-off device, and the compressed gas in the reset chamber drives the piston to reset.
The utility model discloses a further set up to: a second threaded hole is formed in the side wall, corresponding to the expansion chamber, of the second cylinder barrel, and a first threaded hole corresponding to the second threaded hole is formed in the side wall of the first cylinder barrel; the cut-off device comprises a screw rod which is simultaneously in threaded fit with the first threaded hole and the second threaded hole, one end of the screw rod is arranged in the expansion chamber, and the other end of the screw rod is arranged outside the first cylinder barrel; an air passage for gas to pass through is formed in the screw, one outlet of the air passage is formed in the end portion, located in the expansion chamber, of the screw, and the other outlet of the air passage is formed in the side wall, located outside the first cylinder, of the screw.
By adopting the technical scheme, when the expansion chamber needs to be closed, the screw rod is rotated to enable the outlet of the air passage, which is positioned outside the first cylinder barrel, to be screwed into the first threaded hole, and then the expansion chamber is closed to further increase the pressure; and the screw rod is rotated reversely, so that an outlet of the air passage on the side wall is exposed outside the first cylinder barrel again, the expansion chamber is not closed, the pressure is reduced, and the piston is reset.
The utility model discloses a further set up to: and a knob is fixedly arranged on the end part of the screw rod outside the first cylinder barrel.
Through adopting above-mentioned technical scheme, when the staff need rotate the screw rod, the knob has increased the area of contact of hand with the screw rod, is favorable to making things convenient for the staff to rotate the screw rod.
The utility model discloses a further set up to: the resetting device comprises a flange arranged in the valve cavity, and a tension spring sleeved on the part of the inflating nozzle in the valve cavity, wherein the inflating nozzle is positioned on the flange, one end of the tension spring is fixed on the flange, and the other end of the tension spring is fixed on the end face of the valve cavity close to the opening.
By adopting the technical scheme, the tension spring has the tendency of pushing the charging connector to the outside of the valve cavity, and when the charging connector is not corresponding to the charging opening of the fire extinguisher tank after being charged, the tension spring pulls the flange to move towards the opening direction of the first cylinder barrel, so that the function of resetting the charging connector is realized.
The utility model discloses a further set up to: the end part of the inflating nozzle, which is positioned outside the valve core, is provided with a spherical circular nozzle, and the inner ring of the inflating nozzle forms a conical shrinkage hole at the end part of the spherical circular nozzle.
Through adopting above-mentioned technical scheme, spherical round mouth can make things convenient for the inflation inlet of inflation nozzle and fire extinguisher jar to dock, and conical retraction hole is favorable to reducing the driving force to fire extinguisher jar inflation inlet when gaseous blowout, improves the stability when aerifing.
The utility model discloses a further set up to: and a rubber pad is arranged on the outer wall of the spherical round nozzle.
Through adopting above-mentioned technical scheme, the rubber pad has increased the gas tightness between spherical round mouth and the fire extinguisher jar charging port when aerifing, is favorable to avoiding gas leakage.
The utility model discloses a further set up to: and a blocking piece is fixedly arranged on the side wall of the inflating nozzle outside the valve core.
Through adopting above-mentioned technical scheme, the back charging connector that supports on the case when the separation blade will stop moving, consequently the separation blade can avoid when aerifing that the charging connector stretches into the overlength to case inside and causes the extension spring to damage.
The utility model discloses a further set up to: a sliding device is connected between the first cylinder barrel and the support frame, and the sliding device comprises two sliding chutes which are arranged on the support frame in parallel; two sliding blocks are fixedly arranged on the outer wall of the first cylinder barrel and are respectively in sliding fit with the two sliding grooves; and a fastening device used for fastening the sliding block and the sliding groove is arranged between the two sliding blocks.
Through adopting above-mentioned technical scheme, when the position that needs changed first cylinder is aerifyd with the fire extinguisher jar to different specifications, slide first cylinder along the spout, the sliding block has guaranteed being connected between first cylinder and the support frame, can fix the position of first cylinder through fastener promptly.
The utility model discloses a further set up to: the fastening device comprises two through holes which are respectively arranged on the sliding block and correspond to each other, and further comprises bolts which are arranged in the through holes in a penetrating mode, and nuts are matched at one end of the bolts in a threaded mode.
Through adopting above-mentioned technical scheme, the clamp force of bolt to two sliding blocks can be changed to the swivel nut to the realization is fixed first cylinder on the support frame or makes first cylinder can be on the support frame gliding function freely.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the fire extinguisher tank is inflated, the inflation inlet of the fire extinguisher tank is aligned with the inflation nozzle, the power device pushes the valve core to move towards the opening, the valve core drives the inflation nozzle to move towards the inflation inlet of the fire extinguisher tank, when the inflation nozzle is abutted against the inflation inlet of the fire extinguisher tank, the fire extinguisher tank pushes the inflation nozzle towards the interior of the valve core, so that the gas injection hole moves into the valve cavity, the inner ring of the inflation nozzle is directly communicated with a high-pressure gas source through the gas injection hole, the high-pressure gas source can automatically inflate the fire extinguisher tank through the inflation nozzle, the inflation operation can be realized by only one step, and the operation is more convenient and rapid;
2. the expansion chamber is communicated or separated with the outside of the first cylinder barrel by rotating the knob, so that the function that the piston rod drives the valve core to move outwards or reset can be realized; the tension spring can push the charging nozzle to the outside of the valve cavity after the charging nozzle is separated from the fire extinguisher tank, so that the function of resetting the charging nozzle is realized;
3. the conical collapse holes are beneficial to improving the stability during inflation; the rubber pad can increase the air tightness; the baffle plate can prevent the damage of the tension spring caused by the fact that the inflating nozzle extends into the valve core too long during inflation; first cylinder can slide on the support frame through the cooperation of sliding block and spout, and the bolt can be fixed with it with the nut.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic view of the structure of the glide.
In the figure, 1, a support frame; 2. a first cylinder; 21. an opening; 22. fixing a baffle plate; 221. a first vent hole; 23. a first chamber; 24. a second chamber; 25. a first conduit; 26. a first threaded hole; 27. a stop hook; 3. a slipping device; 31. a chute; 32. a slider; 321. a through hole; 33. a bolt; 34. a nut; 4. a valve core; 41. a valve cavity; 42. a second vent hole; 43. an air nozzle hole; 5. an air charging nozzle; 51. a flange; 52. a tension spring; 53. a gas injection hole; 54. a spherical round mouth; 541. a rubber pad; 55. a baffle plate; 6. a power plant; 61. a second cylinder; 611. an expansion chamber; 612. a reset chamber; 613. a second threaded hole; 62. a piston; 63. a push rod; 64. a second conduit; 71. a screw; 72. an airway; 73. a knob.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the safety pressurizing device for a fire extinguisher disclosed by the present invention comprises a support frame 1, wherein the support frame 1 is provided with a first cylinder 2, one end of the first cylinder 2 is closed, and the other end is provided with an opening 21; a sliding device 3 is connected between the first cylinder barrel 2 and the support frame 1, and the first cylinder barrel 2 can slide or be fixed on the support frame 1 through the sliding device 3; a valve core 4 is matched in the first cylinder barrel 2 in a sliding way, an inflating nozzle 5 is arranged in the valve core 4, and the inflating nozzle 5 is used for injecting high-pressure gas into a fire extinguisher tank; still be provided with in the first cylinder 2 and can drive the gliding power device 6 of plug 4, and 2 internal connection of first cylinder have high-pressure gas source, when carrying out the punching press to the fire extinguisher, use power device 6 to drive plug 4 and remove to the opening 21 department of first cylinder 2 to make charging connector 5 butt joint in the inflation inlet department of fire extinguisher jar, high-pressure gas gets into in the fire extinguisher jar through charging connector 5 under the effect of pressure, the completion is aerifyd.
Referring to fig. 1 and 2, a fixed baffle 22 is arranged in the first cylinder 2, and the fixed baffle 22 divides the interior of the first cylinder 2 into a first chamber 23 communicated with the opening 21 and a second chamber 24 far away from the opening 21 of the first cylinder 2; the valve core 4 is arranged in the first cavity 23, the valve core 4 is cylindrical, and the outer wall of the valve core 4 is attached to the inner wall of the first cavity 23, so that gas leakage is avoided; the power device 6 comprises a second cylinder 61 arranged in the second chamber 24, the second cylinder 61 is of a closed structure, the second cylinder 61 is arranged coaxially with the first cylinder 2, and the outer diameter of the second cylinder 61 is smaller than the inner diameter of the first cylinder 2; one end of the second cylinder 61 is fixed on the fixed baffle 22, and the other end is spaced from the end of the first cylinder 2; the power device 6 further comprises a piston 62 arranged inside the second cylinder 61, the piston 62 is in sliding fit inside the second cylinder 61, a push rod 63 is fixedly arranged on the surface of the piston 62 close to the fixed baffle 22, the end of the push rod 63 penetrates through the fixed baffle 22 and extends into the first chamber 23, and the end of the push rod 63 located in the first chamber 23 is fixed on the valve core 4.
Referring to fig. 1 and 2, a first pipeline 25 is connected to an end of the first cylinder 2 far away from the opening 21, the first pipeline 25 is directly communicated with the second chamber 24, and the first pipeline 25 is connected with a high-pressure air source; the piston 62 divides the inner cavity of the second cylinder 61 into an expansion chamber 611 far away from the fixed baffle 22 and a reset chamber 612 close to the fixed baffle 22, the end of the second cylinder 61 far away from the fixed baffle 22 is connected with a second pipeline 64, the second pipeline 64 is directly communicated with the expansion chamber 611, and the second pipeline 64 penetrates through the outer wall of the first cylinder 2 and is connected with a high-pressure air source; the second cylinder 61 is provided with a second threaded hole 613 on the side wall corresponding to the expansion chamber 611, the side wall of the first cylinder 2 is provided with a first threaded hole 26 corresponding to the second threaded hole 613, the first threaded hole 26 and the second threaded hole 613 are simultaneously matched with a screw 71, one end of the screw 71 is arranged in the expansion chamber 611, and the other end is arranged outside the first cylinder 2; an air passage 72 for gas to pass through is formed in the screw 71, one outlet of the air passage 72 is formed in the end part, located outside the expansion chamber 611, of the screw 71, and the other outlet is formed in the side wall, located outside the first cylinder 2, of the screw 71; the end part of the screw rod 71, which is positioned outside the first cylinder barrel 2, is fixedly provided with a knob 73, so that a worker can conveniently rotate the screw rod 71; when the fire extinguisher tank is inflated, the knob 73 is rotated to screw the outlet of the air passage 72, which is positioned outside the first cylinder 2, into the first threaded hole 26, so that the expansion chamber 611 is closed, the gas pressure rises, the piston 62 is pushed, and the rod of the piston 62 is driven to push the valve core 4 towards the opening 21 of the first cylinder 2; after the inflation is finished, the knob 73 is rotated reversely, so that the opening 21 of the air channel 72 on the side wall of the screw 71 is exposed outside the first cylinder 2 again, the expansion chamber 611 is not closed, and the normal air pressure is recovered, and the piston 62 can be reset by the pushing of the air in the reset chamber 612.
Referring to fig. 1 and 2, a plurality of first vent holes 221 are uniformly formed in a portion of the fixed baffle 22 located between the first cylinder 2 and the second cylinder 61 along the circumferential direction, and the first vent holes 221 communicate the first chamber 23 and the second chamber 24; a cylindrical valve cavity 41 is formed in the valve core 4, a plurality of second vent holes 42 are formed in the end part, close to the fixed baffle 22, of the valve core 4, and the second vent holes 42 are communicated with the first cavity 23 and the valve cavity 41; the end part of the valve core 4 opposite to the fixed baffle 22 is provided with a gas nozzle hole 43, and the gas nozzle hole 43 is communicated with the valve cavity 41 and the outside of the valve core 4; the charging connector 5 is in sliding fit in the air nozzle hole 43, the charging connector 5 is in a cylindrical rod-shaped structure, one end of the charging connector 5 is arranged in the valve cavity 41, and the other end of the charging connector 5 is arranged outside the valve core 4; the end part of the charging connector 5 positioned in the valve cavity 41 is closed and is provided with a flange 51, a tension spring 52 is sleeved on the part of the charging connector 5 positioned in the valve cavity 41, one end of the tension spring 52 is fixed on the flange 51, the other end of the tension spring is fixed on the end surface of the valve cavity 41 opposite to the fixed baffle 22, and the tension spring 52 has the tendency of pushing the charging connector 5 to the outside of the valve cavity 41; a through gas injection hole 53 is formed in the side wall of the charging connector 5, and the gas injection hole 53 is positioned in the gas nozzle hole 43; the end part of the charging connector 5, which is positioned outside the valve core 4, is provided with a spherical round connector 54, and the inner ring of the charging connector 5 forms a conical shrinkage hole at the end part of the spherical round connector 54, so that gas leakage during charging can be avoided; the rubber pad 541 is arranged on the outer wall of the spherical round nozzle 54, which is beneficial to increasing the air tightness during inflation; the side wall of the inflating nozzle 5, which is positioned outside the valve core 4, is fixedly provided with a blocking piece 55, and the blocking piece 55 can prevent the inflating nozzle 5 from extending too long into the valve core 4 to damage the tension spring 52 during inflation.
Referring to fig. 3, the sliding device 3 includes two sliding chutes 31 opened in parallel on the supporting frame 1, and the cross section of the sliding chute 31 is in a shape of Chinese character 'ao'; two sliding blocks 32 are fixedly arranged on the outer wall of the first cylinder barrel 2, the cross section of each sliding block 32 is in a convex shape, and the two sliding blocks 32 are respectively matched in the two sliding grooves 31 in a sliding manner; through holes 321 corresponding to each other are formed in the two sliding blocks 32, a bolt 33 penetrates through the through holes 321, and a nut 34 is in threaded fit with one end of the bolt 33; the clamping force of the bolt 33 on the two sliding blocks 32 can be changed by rotating the nut 34, so that the function of fixing the first cylinder 2 on the support frame 1 or enabling the first cylinder 2 to freely slide on the support frame 1 is realized.
Referring to fig. 1, the edge of the opening 21 of the first cylinder 2 is fixed with a stop hook 27, the stop hook 27 is bent towards the axis direction of the first cylinder 2, and when the fire extinguisher tank is inflated, the stop hook 27 can facilitate a worker to position the fire extinguisher tank, so that the work efficiency is improved.
The working principle of the utility model is that when the fire extinguisher tank is inflated, the inflation inlet of the fire extinguisher tank is aligned with the inflation nozzle 5, the knob 73 is rotated to screw the outlet of the air passage 72 outside the first cylinder 2 into the first threaded hole 26 so as to seal the expansion chamber 611, the pressure of the expansion chamber 611 rises to push the piston 62 to drive the piston 62 to push the valve core 4 towards the opening 21 of the first cylinder 2; case 4 drives charging connector 5 and removes to the inflation inlet department of fire extinguisher jar, when charging connector 5 supported on the inflation inlet of fire extinguisher jar, the fire extinguisher jar will promote charging connector 5 to case 4 inside to make gas injection hole 53 remove in valve pocket 41, 5 inner circles of charging connector pass through gas injection hole 53 and high pressurized air source direct intercommunication this moment, high pressurized air source can aerify to the fire extinguisher jar through charging connector 5 is automatic, the gas operation only needs one step can realize, convenient and fast more operates.
The embodiment of the present invention is a preferred embodiment of the present invention, which is not limited in this way to the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A safe pressurizing device of a fire extinguisher comprises a support frame (1); the method is characterized in that: a first cylinder barrel (2) is arranged on the support frame (1), one end of the first cylinder barrel (2) is closed, an opening (21) is formed in the other end of the first cylinder barrel, and a high-pressure air source is connected inside the first cylinder barrel (2); the first cylinder barrel (2) is matched with a valve core (4) in a sliding mode, a valve cavity (41) is formed in the valve core (4), and the valve cavity (41) is communicated with the interior of the first cylinder barrel (2); the valve core (4) is provided with an air nozzle hole (43), and the air nozzle hole (43) penetrates through the valve cavity (41) and the end part of the valve core (4) corresponding to the opening (21); the air nozzle hole (43) is matched with an air charging nozzle (5) in a sliding manner, one end of the air charging nozzle (5) is arranged in the valve cavity (41), and the other end of the air charging nozzle is arranged outside the valve core (4); the end part of the charging connector (5) positioned in the valve cavity (41) is closed, and a resetting device is arranged on the part of the charging connector (5) positioned in the valve cavity (41); a through gas injection hole (53) is formed in the side wall of the charging nozzle (5), and the gas injection hole (53) is formed in the nozzle hole (43); and a power device (6) capable of driving the valve core (4) to slide is further arranged in the first cylinder barrel (2).
2. A fire extinguisher safety pressurizing device according to claim 1, wherein: a fixed baffle plate (22) is arranged in the first cylinder barrel (2), and the fixed baffle plate (22) divides the first cylinder barrel (2) into a first chamber (23) communicated with the opening (21) and a second chamber (24) far away from the opening (21); the spool (4) is disposed within the first chamber (23); the power device (6) comprises a second cylinder barrel (61) arranged in the second chamber (24), the second cylinder barrel (61) is of a closed structure, and the second cylinder barrel (61) is fixed on the fixed baffle (22); the power device (6) further comprises a piston (62) arranged inside the second cylinder (61), the piston (62) is in sliding fit inside the second cylinder (61), a push rod (63) is fixedly arranged on the surface, close to the fixed baffle (22), of the piston (62), the end part of the push rod (63) penetrates through the fixed baffle (22) and extends into the first chamber (23), and the end part, located in the first chamber (23), of the push rod (63) is fixed on the valve core (4); the piston (62) divides the second chamber (24) into an expansion chamber (611) far away from the fixed baffle (22) and a reset chamber (612) close to the fixed baffle (22), and the expansion chamber (611) is connected with a high-pressure air source; the second cylinder (61) is provided with a cut-off device capable of controlling the communication and disconnection between the expansion chamber (611) and the outside of the first cylinder (2).
3. A fire extinguisher safety pressurizing device according to claim 2, wherein: a second threaded hole (613) is formed in the side wall, corresponding to the expansion chamber (611), of the second cylinder (61), and a first threaded hole (26) corresponding to the second threaded hole (613) is formed in the side wall of the first cylinder (2); the cut-off device comprises a screw rod (71) which is simultaneously screwed in the first threaded hole (26) and the second threaded hole (613), one end of the screw rod (71) is arranged in the expansion chamber (611), and the other end of the screw rod (71) is arranged outside the first cylinder (2); an air passage (72) for air to pass through is formed in the screw (71), one outlet of the air passage (72) is formed in the end portion, located in the expansion chamber (611), of the screw (71), and the other outlet of the air passage is formed in the side wall, located outside the first cylinder (2), of the screw (71).
4. A fire extinguisher safety pressurizing device according to claim 3, wherein: the screw rod (71) is fixedly provided with a knob (73) at the end part outside the first cylinder barrel (2).
5. A fire extinguisher safety pressurizing device according to any one of claims 1 to 4, wherein: resetting means is including setting up charging connector (5) are located flange (51) inside valve pocket (41), still establish extension spring (52) on charging connector (5) are located the part of valve pocket (41) including the cover, and the one end of extension spring (52) is fixed on flange (51), and the other end is fixed and is close to in valve pocket (41) on the terminal surface of opening (21).
6. A fire extinguisher safety pressurizing device according to any one of claims 1 to 4, wherein: the end part of the inflating nozzle (5) positioned outside the valve core (4) is provided with a spherical round nozzle (54), and the inner ring of the inflating nozzle (5) forms a conical contraction hole at the end part of the spherical round nozzle (54).
7. A fire extinguisher safety pressurizing device according to claim 6, wherein: and a rubber pad (541) is arranged on the outer wall of the spherical round nozzle (54).
8. A fire extinguisher safety pressurizing device according to claim 6, wherein: and a blocking piece (55) is fixedly arranged on the side wall of the inflating nozzle (5) positioned outside the valve core (4).
9. A fire extinguisher safety pressurizing device according to any one of claims 1 to 4, wherein: a sliding device (3) is connected between the first cylinder barrel (2) and the support frame (1), and the sliding device (3) comprises two sliding chutes (31) which are arranged on the support frame (1) in parallel; two sliding blocks (32) are fixedly arranged on the outer wall of the first cylinder barrel (2), and the two sliding blocks (32) are respectively in sliding fit in the two sliding grooves (31); and a fastening device used for fastening the sliding block (32) and the sliding groove (31) is arranged between the two sliding blocks (32).
10. A fire extinguisher safety pressurizing device according to claim 9, wherein: fastener is including offering respectively two through-hole (321) that correspond each other on sliding block (32) and set up, still including wearing to establish two bolt (33) in through-hole (321), the one end screw-thread fit of bolt (33) has nut (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245694.6U CN211468900U (en) | 2019-12-13 | 2019-12-13 | Fire extinguisher safety pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245694.6U CN211468900U (en) | 2019-12-13 | 2019-12-13 | Fire extinguisher safety pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211468900U true CN211468900U (en) | 2020-09-11 |
Family
ID=72357826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922245694.6U Expired - Fee Related CN211468900U (en) | 2019-12-13 | 2019-12-13 | Fire extinguisher safety pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211468900U (en) |
-
2019
- 2019-12-13 CN CN201922245694.6U patent/CN211468900U/en not_active Expired - Fee Related
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