CN112076425B - Fire control shower nozzle buffer with cushion recoil - Google Patents
Fire control shower nozzle buffer with cushion recoil Download PDFInfo
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- CN112076425B CN112076425B CN202010944945.4A CN202010944945A CN112076425B CN 112076425 B CN112076425 B CN 112076425B CN 202010944945 A CN202010944945 A CN 202010944945A CN 112076425 B CN112076425 B CN 112076425B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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Abstract
The invention relates to the technical field of fire-fighting nozzles, in particular to a fire-fighting nozzle buffering device with a buffering recoil force, which comprises a spray pipe, wherein one end of the spray pipe is provided with a control pipe, the spray pipe is movably sleeved in the control pipe, the other end of the spray pipe is fixedly connected with an annular plate, one side of the annular plate is fixedly connected with a U-shaped plate, the spray pipe penetrates through the middle part of the annular plate, the lower end of the U-shaped plate is fixedly connected with a diffusion plate, and an interception ring and a spring are arranged between the control pipe and the annular plate.
Description
Technical Field
The invention relates to the technical field of fire-fighting nozzles, in particular to a fire-fighting nozzle buffering device with a buffering recoil force.
Background
Fire control shower nozzle among the prior art fixes at indoor shed roof, in case the conflagration breaks out, directly gushes into the shower nozzle with rivers, and the shower nozzle sprays a water droplet, realizes the work of putting out a fire, and water pressure is big more, and rivers are big more to the impact of fire control shower nozzle, how to realize effectual buffering, reduce the influence that rivers impact caused to the shower nozzle, all the time be a technique that needs to improve the improvement.
If the fire-fighting nozzle can be provided with the stable and efficient recoil buffering function, the problem can be solved, and the fire-fighting nozzle buffering device with recoil buffering function is provided for the purpose.
Disclosure of Invention
The invention aims to provide a fire sprinkler head buffering device with a buffering recoil force, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a fire control nozzle buffering device with buffering recoil comprises a spray pipe, wherein a control pipe is arranged at one end of the spray pipe, the spray pipe is movably sleeved in the control pipe, an annular plate is fixedly connected to the other end of the spray pipe, a U-shaped plate is fixedly connected to one side of the annular plate, the spray pipe penetrates through the middle of the annular plate, a diffusion plate is fixedly connected to the lower end of the U-shaped plate, an intercepting ring and a spring are arranged between the control pipe and the annular plate, the intercepting ring and the spring are sleeved on the spray pipe, the lower end of the intercepting ring is in contact with the spring, a rubber ring is arranged at the upper end of the spray pipe, a positioning barrel is fixedly sleeved outside the rubber ring and fixed on the inner wall of the control pipe, a plurality of guide sliding blocks which are uniformly distributed are arranged on a fixing ring on the outer wall of the spray pipe, the guide sliding blocks partially extend into prismatic chutes formed in the inner wall of the control pipe, and an air pipe cavity is arranged on a shell of the control pipe, one end of the air tube cavity extends to the outside of the control tube, the other end of the air tube cavity extends to a prismatic chute on the control tube, an air valve is arranged in the inner cavity of the air tube cavity, the upper end of the guide sliding block is fixedly connected with a control rod, the upper end of the control rod extends to the air valve, a plurality of uniformly distributed support frames are arranged on an upper fixing ring on the outer wall of the control tube, the lower end of each support frame extends to the lower part of a spring, the lower end of the spring is contacted with the support frames, one side of the spring is provided with a spring leaf, one end of the spring leaf is contacted with a pressure plate, the spring leaf and the pressure plate are arranged in a square cavity formed in a control tube shell, one end of the pressure plate is contacted with a propelling plate, one end of the propelling plate is in transmission connection with a worm, the outside of the control tube is fixedly sleeved with an outer tube, the upper end of the outer tube is fixedly connected with a gear, the propelling plate, the worm and the gear are arranged in the outer tube, and a propelling tube is sleeved outside the outer tube, one end of the gear is in transmission connection with the propelling cylinder.
Preferably, the shape of spray pipe is body upper end body coupling hemisphere casing, and the body lower extreme is the form of closing up, and the hemisphere casing of spray pipe is fitted with a contraceptive ring and is equipped with a plurality of evenly distributed's through-hole, and the through-hole on the spray pipe is located the lower extreme of rubber ring, and the hemisphere casing top and the rubber ring contact of spray pipe.
Preferably, the pushing plate is arranged in an arc-shaped column groove formed in the butt joint position of the control tube and the outer cylinder in a matching mode, the pushing plate is in an arc-shaped plate shape, a plurality of protruding teeth which are evenly distributed are fixedly connected to the outer arc surface of the pushing plate, and the protruding teeth on the pushing plate are in meshed connection with the worm.
Preferably, the propelling cylinder is a cylinder, the cylinder body is arranged in a cylindrical groove formed in the outer wall of the outer cylinder in a matching mode, a plurality of uniformly distributed cylindrical grooves are annularly formed in the outer wall of the propelling cylinder, a plurality of uniformly distributed tooth sockets are annularly formed in the inner wall of the propelling cylinder, and the gear is in meshed connection with the tooth sockets in the propelling cylinder.
Preferably, the spring plate is in a U-shaped plate shape, two end parts of the plate body are respectively bent towards two sides, and the spring plate part protrudes into the prismatic sliding groove on the control tube.
Preferably, the pneumatic valve includes ventilative board, rubber disc and T type dish, ventilative board shape is that the position of plectane and plate body middle part encircles and is equipped with a plurality of evenly distributed's coarse pore, and the plate body border position of ventilative board encircles and is equipped with a plurality of evenly distributed's pore, and one side contact of ventilative board has the rubber disc, and the position of rubber disc runs through there is T type dish, the one end and the ventilative board fixed connection of T type dish, and ventilative board is fixed on the inner wall of trachea chamber.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the process that water flow impacts the diffusion plate is realized, the rebound of the spring pushes the impact of the water flow to be effectively buffered, so that the influence of the post acting force of the water flow impact on the whole fire-fighting nozzle is avoided, the fire-fighting nozzle is ensured to be stably fixed on the roof, and the function is stable and strong;
2. the device passes through the design of pneumatic valve, and the effect of atmospheric pressure support control lever is realized to the short time, and the control lever supports the direction slider, and then realizes the control to the spray pipe, and the process is stretched out from the control pipe to the spray pipe like this, can receive the bounce-back influence of spring, and the timely velocity of flow of water flow reduces, and the spray pipe can slowly retract to the control pipe in, avoids the spray pipe rapid motion, realizes the protection to whole fire control shower nozzle to a certain extent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a sprinkler pipe structure;
FIG. 3 is a diagram of a pusher barrel position profile.
In the figure: the device comprises a water spraying pipe 1, a control pipe 2, an annular plate 3, a U-shaped plate 4, a diffusion plate 5, an interception ring 6, a spring 7, a rubber ring 8, a positioning barrel 9, a guide slider 10, an air pipe 11, an air valve 12, a control rod 13, a support frame 14, a spring leaf 15, a pressure plate 16, a propelling plate 17, a worm 18, an outer barrel 19, a gear 20, a propelling barrel 21, a ventilating plate 22, a rubber disc 23, a disc 24T, a shed roof 25 and a hose 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a fire control nozzle buffer device with buffer recoil comprises a spray pipe 1, one end of the spray pipe 1 is provided with a control pipe 2, the spray pipe 1 is movably sleeved in the control pipe 2, the other end of the spray pipe 1 is fixedly connected with an annular plate 3, one side of the annular plate 3 is fixedly connected with a U-shaped plate 4, the spray pipe 1 penetrates through the middle part of the annular plate 3, the lower end of the U-shaped plate 4 is fixedly connected with a diffusion plate 5, an interception ring 6 and a spring 7 are arranged between the control pipe 2 and the annular plate 3, the interception ring 6 and the spring 7 are sleeved on the spray pipe 1, the lower end of the interception ring 6 is contacted with the spring 7, the upper end of the spray pipe 1 is provided with a rubber ring 8, the outer part of the rubber ring 8 is fixedly sleeved with a positioning cylinder 9, the positioning cylinder 9 is fixed on the inner wall of the control pipe 2, the outer wall of the spray pipe 1 is provided with a plurality of guide sliders 10 which are uniformly distributed, an air tube cavity 11 is annularly arranged on a shell of a control tube 2, one end of the air tube cavity 11 extends to the outside of the control tube 2, the other end of the air tube cavity 11 extends into a prismatic sliding groove on the control tube 2, an air valve 12 is arranged in an inner cavity of the air tube cavity 11, a control rod 13 is fixedly connected to the upper end of a guide sliding block 10, the upper end of the control rod 13 extends into the air valve 12, a plurality of uniformly distributed supporting frames 14 are fixedly arranged on the outer wall of the control tube 2, the lower end of each supporting frame 14 extends to the lower side of a spring 7, the lower end of the spring 7 is in contact with the supporting frames 14, a spring leaf 15 is arranged on one side of the spring 7, one end of each spring leaf 15 is in contact with a pressure plate 16, the spring leaf 15 and the pressure plate 16 are arranged in a square cavity formed in the shell of the control tube 2, one end of the pressure, the fixedly connected with gear 20 in urceolus 19 upper end, propulsion board 17, worm 18 and gear 20 set up in urceolus 19, the outside cover of urceolus 19 has a propulsion section of thick bamboo 21, gear 20 one end and propulsion section of thick bamboo 21 transmission are connected, refer to fig. 1, control tube 2 is fixed on shed roof 25, on the control tube 2 and hose 26 are connected, after indoor alarm mechanism that triggers, water supply mechanism is direct to the water injection in the hose 26, rivers jack-up spray pipe 1, spray pipe 1 moves and keeps away from rubber ring 8, rivers are gushed into in the spray pipe 1 through the through-hole on the spray pipe 1 like this, outer row's blowout afterwards, spring leaf 15 screens makes the top on the spray pipe 1 and rubber ring 8 contact seal at ordinary times, it is excessive through spray pipe 1 to avoid the water that is detained in the hose 26 when not supplying water.
The shape of spray pipe 1 is body upper end body coupling hemisphere casing, and the body lower extreme is the form of closing in the mouth, and the hemisphere casing of spray pipe 1 fits with a contraceptive ring and is equipped with a plurality of evenly distributed's through-hole, and the through-hole on the spray pipe 1 is located the lower extreme of rubber ring 8, and the hemisphere casing top and the rubber ring 8 contact of spray pipe 1.
The pushing plate 17 is arranged in an arc-shaped column groove formed in the butt joint position of the control tube 2 and the outer cylinder 19 in a matching mode, the pushing plate 17 is arc-shaped, a plurality of protruding teeth which are evenly distributed are fixedly connected to the outer arc surface of the pushing plate 17, and the protruding teeth on the pushing plate 17 are meshed with the worm 18.
The shape of the propelling barrel 21 is a cylinder, the barrel body is arranged in a cylinder-shaped groove formed in the outer wall of the outer barrel 19 in a matching mode, a plurality of uniformly distributed cylindrical grooves are annularly arranged on the outer wall of the propelling barrel 21, a plurality of uniformly distributed tooth grooves are annularly arranged on the inner wall of the propelling barrel 21, and the gear 20 is in meshed connection with the tooth grooves on the propelling barrel 21.
The spring piece 15 is in a U-shaped plate shape, two end parts of the plate body are respectively bent towards two sides, and the part of the spring piece 15 protrudes into the prismatic sliding groove on the control tube 2.
The pneumatic valve 12 includes ventilative board 22, rubber disc 23 and T type dish 24, ventilative board 22 shape is equipped with a plurality of evenly distributed's coarse pore for plectane and plate body middle part position ring, ventilative board 22's plate body border position ring is equipped with a plurality of evenly distributed's pore, ventilative board 22's one side contact has rubber disc 23, rubber disc 23's position runs through there is T type dish 24, T type dish 24's one end and ventilative board 22 fixed connection, ventilative board 22 is fixed on the inner wall of trachea chamber 11.
The working principle is as follows: when the hose 26 supplies water, water is sprayed out through the spray pipe 1, the water directly impacts the diffusion plate 5, then the water rebounds and breaks into a plurality of water drops, the water drops fly off from the air, fire extinguishing work is realized, because of the effect of intercepting the water flow by the diffusion plate 5, extremely strong impact is applied to the diffusion plate 5, meanwhile, the whole fire fighting device is driven by the reaction, the rebounding pushing of the spring 7 is used for buffering the reaction force, specifically, in the process that the diffusion plate 5 is impacted and descended, the spray pipe 1, the annular plate 3, the U-shaped plate 4 and the diffusion plate 5 are fixedly connected together, so that the spray pipe 1 is forced to descend, the interception ring 6 is driven in the descending process of the spray pipe 1, the spring 7 rebounds to push the buffering interception ring 6 to descend, so that the rebounding of the spring 7 is used for buffering the impact of the whole water, in addition, the spray pipe 1 descends to drive the guide slider 10 to drive the control rod 13, and the control rod 13 is drawn out from the air pipe cavity 11, meanwhile, the external air flow is supplemented into the air pipe cavity 11, specifically the air flow jacks up the rubber disc 23, and then the air flow rapidly passes through the coarse holes on the ventilating plate 22, while the air flow can only pass through the fine holes on the ventilating plate 22 in a reverse flow manner, and the air flow in the air pipe cavity 11 can not be discharged outside in a short time, so that the design avoids that the control rod 13 is rapidly inserted into the air pipe cavity 11, namely the water spray pipe 1 can not be rapidly inserted into the control pipe 2, thus avoiding the problem that the water spray pipe 1 is violently shaken due to instability of water flow impact, the water spray pipe 1 can rapidly extend out of the control pipe 2, but can not rapidly retract into the control pipe 2, a rod-like tool can be inserted into the propelling cylinder 21, the propelling cylinder 21 is rotated, the propelling cylinder 21 drives the gear 20 to rotate, the gear 20 drives the worm 18, and then the propelling plate 17 is controlled to rotate, the propelling plate 17 jacks up the pressure plate 16, the pressure plate 16 supports the spring piece 15, and ensures that part of the spring piece 15 stably extends into the prismatic chute of the control pipe 2, thus, when the spray pipe 1 is restored to be in contact with the rubber ring 8 in a sealing state, the spring piece 15 is clamped at the lower end of the guide sliding block 10, and the synchronous fixation between the spray pipe 1 and the control pipe 2 is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a fire control shower nozzle buffer with buffering recoil, includes spray pipe (1), its characterized in that: the water spraying device is characterized in that a control pipe (2) is arranged at one end of the water spraying pipe (1), the water spraying pipe (1) is movably sleeved in the control pipe (2), an annular plate (3) is fixedly connected to the other end of the water spraying pipe (1), a U-shaped plate (4) is fixedly connected to one side of the annular plate (3), the water spraying pipe (1) penetrates through the middle of the annular plate (3), a diffusion plate (5) is fixedly connected to the lower end of the U-shaped plate (4), an intercepting ring (6) and a spring (7) are arranged between the control pipe (2) and the annular plate (3), the intercepting ring (6) and the spring (7) are sleeved on the water spraying pipe (1), the spring (7) is contacted with the lower end of the intercepting ring (6), a rubber ring (8) is arranged at the upper end of the water spraying pipe (1), a positioning barrel (9) is fixedly sleeved outside the rubber ring (8), and the positioning barrel (9) is fixed on the inner wall of the control pipe (2), a plurality of guide sliding blocks (10) which are uniformly distributed are fixedly arranged on the outer wall of the spray pipe (1), the guide sliding blocks (10) partially extend into prismatic chutes formed in the inner wall of the control pipe (2), an air pipe cavity (11) is annularly arranged on the shell of the control pipe (2), one end of the air pipe cavity (11) extends to the outside of the control pipe (2), the other end of the air pipe cavity (11) extends into prismatic chutes on the control pipe (2), an air valve (12) is arranged in the inner cavity of the air pipe cavity (11), a control rod (13) is fixedly connected to the upper end of the guide sliding block (10), the upper end of the control rod (13) extends into the air valve (12), a plurality of uniformly distributed support frames (14) are arranged on the outer wall of the control pipe (2), the lower ends of the support frames (14) extend to the lower side of the spring (7), and the lower end of the spring (7) is contacted with the support frames (14), a spring piece (15) is arranged on one side of the spring (7), a pressure plate (16) is contacted with one end of the spring piece (15), the spring piece (15) and the pressure plate (16) are arranged in a square cavity formed in a shell of the control tube (2), a pushing plate (17) is contacted with one end of the pressure plate (16), a worm (18) is connected with one end of the pushing plate (17) in a transmission manner, an outer cylinder (19) is fixedly sleeved outside the control tube (2), a gear (20) is fixedly connected to the upper end of the outer cylinder (19), the pushing plate (17), the worm (18) and the gear (20) are arranged in the outer cylinder (19), a pushing cylinder (21) is sleeved outside the outer cylinder (19), and one end of the gear (20) is connected with the pushing cylinder (21) in a transmission manner;
the water spraying pipe (1) is in a shape that the upper end of the pipe body is integrally connected with a hemispherical shell, the lower end of the pipe body is in a closed shape, a plurality of uniformly distributed through holes are annularly arranged on the hemispherical shell of the water spraying pipe (1), the through holes in the water spraying pipe (1) are positioned at the lower end of the rubber ring (8), and the top of the hemispherical shell of the water spraying pipe (1) is contacted with the rubber ring (8);
the pushing plate (17) is arranged in an arc-shaped column groove formed in the butt joint position of the control tube (2) and the outer cylinder (19) in a matching mode, the pushing plate (17) is arc-shaped, a plurality of uniformly distributed protruding teeth are fixedly connected to the outer arc surface of the pushing plate (17), and the protruding teeth on the pushing plate (17) are meshed with the worm (18);
the propelling cylinder (21) is in a cylindrical shape and is arranged in a cylindrical groove formed in the outer wall of the outer cylinder (19) in a matching mode, a plurality of uniformly distributed cylindrical grooves are annularly arranged on the outer wall of the propelling cylinder (21), a plurality of uniformly distributed tooth sockets are annularly arranged on the inner wall of the propelling cylinder (21), and the gear (20) is in meshed connection with the tooth sockets on the propelling cylinder (21);
the spring piece (15) is in a U-shaped plate shape, two end parts of the plate body are respectively bent towards two sides, and part of the spring piece (15) protrudes into the prismatic sliding groove on the control tube (2);
the air valve (12) comprises an air permeable plate (22), a rubber disc (23) and a T-shaped disc (24), the air permeable plate (22) is in a circular plate shape, a plurality of uniformly distributed coarse holes are annularly formed in the middle of a plate body, a plurality of uniformly distributed fine holes are annularly formed in the edge position of the plate body of the air permeable plate (22), the rubber disc (23) is contacted with one side of the air permeable plate (22), the T-shaped disc (24) penetrates through the position of the rubber disc (23), one end of the T-shaped disc (24) is fixedly connected with the air permeable plate (22), and the air permeable plate (22) is fixed on the inner wall of the air valve cavity (11);
when the hose (26) supplies water, water flow is sprayed out through the water spraying pipe (1), the water flow directly impacts the diffusion plate (5), then the water flow is rebounded and broken into a plurality of water drops, the water drops fly off from the air, fire extinguishing work is realized, because of the water flow intercepting effect of the diffusion plate (5), extremely strong impact is applied to the diffusion plate (5), meanwhile, the reaction drives the whole fire fighting device, the rebounding promotion of the spring (7) is used for buffering the reaction force, particularly, the diffusion plate (5) is impacted to descend, the water spraying pipe (1), the annular plate (3), the U-shaped plate (4) and the diffusion plate (5) are fixedly connected together, so the water spraying pipe (1) is forcedly descended, the water spraying pipe (1) drives the intercepting ring (6) in the descending process, the rebounding promotion of the rebounding buffering intercepting ring (6) is realized by the spring (7), so that the rebounding of the spring (7) is used for buffering the impact of the whole water flow, in addition, the spray pipe (1) descends to drive the guide sliding block (10), the guide sliding block (10) drives the control rod (13), the control rod (13) is drawn out from the tracheal cavity (11), meanwhile, external air flow is supplemented into the tracheal cavity (11), specifically, the air flow jacks up the rubber disc (23), and then the air flow rapidly passes through a coarse hole on the ventilation plate (22), the air flow can only pass through a fine hole on the ventilation plate (22) in a reverse flow manner, the air flow in the tracheal cavity (11) can not be discharged outside in a short time, the design avoids the control rod (13) from being rapidly inserted into the tracheal cavity (11), namely, the spray pipe (1) can not be rapidly inserted into the control pipe (2), thus, the problem that the spray pipe (1) is severely shaken due to instability of water flow impact is avoided, the spray pipe (1) can rapidly extend out of the control pipe (2) but cannot be rapidly retracted into the control pipe (2), and a rod-like tool can be inserted into the propulsion cylinder (21), rotate and impel a section of thick bamboo (21), impel a section of thick bamboo (21) and drive gear (20) and rotate, gear (20) drive worm (18), and then control propulsion board (17) rotate, impel board (17) jack-up pressure plate (16), pressure plate (16) support spring leaf (15), ensure that spring leaf (15) part stably extends to in the prismatic spout of control tube (2), when spray pipe (1) resumes like this and rubber ring (8) contact seal state, the lower extreme at direction slider (10) is blocked in spring leaf (15), realize the synchronous fixation between spray pipe (1) and control tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944945.4A CN112076425B (en) | 2020-09-10 | 2020-09-10 | Fire control shower nozzle buffer with cushion recoil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944945.4A CN112076425B (en) | 2020-09-10 | 2020-09-10 | Fire control shower nozzle buffer with cushion recoil |
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| Publication Number | Publication Date |
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| CN112076425A CN112076425A (en) | 2020-12-15 |
| CN112076425B true CN112076425B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010944945.4A Active CN112076425B (en) | 2020-09-10 | 2020-09-10 | Fire control shower nozzle buffer with cushion recoil |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204411544U (en) * | 2014-12-31 | 2015-06-24 | 西安新竹防灾救生设备有限公司 | A kind of lift fire extinguishing sprayer |
| KR101914958B1 (en) * | 2017-02-28 | 2018-11-08 | 주식회사 파라텍 | Sprinkler head |
| CN206979886U (en) * | 2017-06-13 | 2018-02-09 | 广东技术师范学院 | A kind of good sprinkler tip of water resistant impact property |
| CN208357066U (en) * | 2018-05-02 | 2019-01-11 | 成宏展 | A kind of environmental protection depositing dust spray head of watering cart |
| CN211188895U (en) * | 2019-09-09 | 2020-08-07 | 福建省南安市广威消防器材有限公司 | Anti-cracking and anti-corrosion type sprinkler head for automatic water spraying fire extinguishing system |
| CN111387235A (en) * | 2020-05-11 | 2020-07-10 | 丹香食品科技有限公司 | Dough proofing tank capable of intelligently controlling temperature |
| CN111546831B (en) * | 2020-05-21 | 2021-10-26 | 李龙才 | Portable sewage detection equipment with balance adjustment function |
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Effective date of registration: 20210629 Address after: 314511 East, floor 1, No. 143, lianhuabang, Wufeng village, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Deji Machinery Design Co.,Ltd. Address before: 314000 No.6 Lingtao Road, Zhejiang Haining hi tech Industrial Park, Haining City, Jiaxing City, Zhejiang Province Applicant before: Dong Yili |
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