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CN113865428A - Multifunctional pneumatic throwing device - Google Patents

Multifunctional pneumatic throwing device Download PDF

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Publication number
CN113865428A
CN113865428A CN202111329499.7A CN202111329499A CN113865428A CN 113865428 A CN113865428 A CN 113865428A CN 202111329499 A CN202111329499 A CN 202111329499A CN 113865428 A CN113865428 A CN 113865428A
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CN
China
Prior art keywords
cylinder
rescue
throwing
seat
shock
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Pending
Application number
CN202111329499.7A
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Chinese (zh)
Inventor
马如中
马澍昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Anhang Marine Equipment Co ltd
Original Assignee
Jiangsu Anhang Marine Equipment Co ltd
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Priority to CN202111329499.7A priority Critical patent/CN113865428A/en
Publication of CN113865428A publication Critical patent/CN113865428A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/80Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63CLAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00Life-saving in water
    • B63C9/22Devices for holding or launching life-buoys, inflatable life-rafts, or other floatable life-saving equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63CLAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00Life-saving in water
    • B63C9/26Cast or life lines; Attachments thereto; Containers therefor; Rescue nets or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0064Health, life-saving or fire-fighting equipment
    • F21V33/0076Safety or security signalisation, e.g. smoke or burglar alarms, earthquake detectors; Self-defence devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Audible And Visible Signals (AREA)

Abstract

本发明公开了多功能气动抛投器,涉及气动抛投器技术领域,为解决现有气动抛投器的救援筒多数只有存放救生圈功能,并且夜晚投放不易快速寻找到物资,导致救援效率低的问题。所述抛投管的一端设置有抛投气缸,所述抛投气缸的一端设置有高压气瓶,所述高压气瓶的下方设置有控制座,所述控制座的一侧设置有快开阀组件,所述抛投管的另一端设置有救援筒,所述救援筒的两侧表面均设置有救援灯组件,所述救援筒的内部设置有存放腔,所述存放腔的内壁设置有分隔板,所述存放腔的底面设置有电池腔,且电池腔与救援筒为一体结构,所述救援筒的上端设置有外接座,所述抛投气缸的下端设置有减震座。

Figure 202111329499

The invention discloses a multifunctional pneumatic thrower, which relates to the technical field of the pneumatic thrower. In order to solve the problem that most of the rescue cylinders of the existing pneumatic thrower only have the function of storing lifebuoys, and it is difficult to quickly find materials when throwing at night, resulting in low rescue efficiency question. One end of the throwing pipe is provided with a throwing cylinder, one end of the throwing cylinder is provided with a high-pressure gas cylinder, a control seat is provided below the high-pressure gas cylinder, and a quick-opening valve is provided on one side of the control seat The other end of the throwing tube is provided with a rescue cylinder, both sides of the rescue cylinder are provided with a rescue lamp assembly, the interior of the rescue cylinder is provided with a storage cavity, and the inner wall of the storage cavity is provided with A separator, the bottom surface of the storage cavity is provided with a battery cavity, and the battery cavity and the rescue cylinder are integrally structured, the upper end of the rescue cylinder is provided with an external seat, and the lower end of the throwing cylinder is provided with a shock-absorbing seat.

Figure 202111329499

Description

Multifunctional pneumatic throwing device
Technical Field
The invention relates to the technical field of pneumatic throwing devices, in particular to a multifunctional pneumatic throwing device.
Background
The throwing device is an equipment which takes compressed air or gunpowder as power and throws a rope and a life buoy to a target, and can be divided into a pneumatic type throwing device and a gunpowder type throwing device according to the power source.
However, most of the rescue cylinders of the existing pneumatic throwing device only have the function of storing life buoys, and the materials are not easy to find quickly when the pneumatic throwing device is thrown at night, so that the rescue efficiency is low; thus, the existing requirements are not met, and a multifunctional pneumatic tossing machine is provided for the purpose.
Disclosure of Invention
The invention aims to provide a multifunctional pneumatic throwing device, which solves the problems that most of rescue cylinders of the existing pneumatic throwing devices in the background technology only have the function of storing life buoys, and the rescue efficiency is low because the materials are not easy to find when the pneumatic throwing devices are thrown at night.
In order to achieve the purpose, the invention provides the following technical scheme: multifunctional pneumatic throwing device, including throwing the pipe, the one end of throwing the pipe is provided with throws the cylinder, the one end of throwing the cylinder is provided with the gas cylinder, the below of gas cylinder is provided with the control seat, one side of control seat is provided with quick-opening valve subassembly, the other end of throwing the pipe is provided with a rescue section of thick bamboo, the both sides surface of a rescue section of thick bamboo all is provided with rescue banks spare, the inside of a rescue section of thick bamboo is provided with deposits the chamber, the inner wall of depositing the chamber is provided with the division board, the bottom surface of depositing the chamber is provided with the battery chamber, and battery chamber and a rescue section of thick bamboo structure as an organic whole, the upper end of a rescue section of thick bamboo is provided with the external seat, the lower extreme of throwing the cylinder is provided with the shock attenuation seat.
Preferably, a transparent plate is arranged above the rescue lamp assembly and is in adhesive connection with the rescue cylinder, and two transparent plates are arranged.
Preferably, the outside of the rescue cylinder is provided with two protective rings, the protective rings are connected with the rescue cylinder in a hot melting mode, and the surface of the rescue cylinder is provided with through grooves which penetrate through the rescue cylinder.
Preferably, the open end of depositing the chamber is provided with sealed lid, sealed lid with deposit the chamber junction and be provided with waterproof sealing washer, the open end of battery chamber is provided with the battery cover, the upper surface of battery cover is provided with the shock pad, and shock pad and battery cover adhesive bonding are connected, the division board is provided with six.
Preferably, the one end of cushion socket is provided with the shock attenuation board, and the shock attenuation board is connected with the cushion socket hot melt, the other end of cushion socket is provided with the bolt, and the cushion socket passes through bolt and throws cylinder threaded connection, the upper end of throwing the cylinder is provided with air valve mechanism.
Preferably, one side of cushion socket is provided with hand protection frame, and hand protection frame and cushion socket and throwing pipe soaking are melted and are connected, hand protection frame is provided with two, the side surface of external seat is provided with external thread groove, and external thread groove and external seat structure as an organic whole, the one end of external seat is provided with the screw, and external seat passes through screw and rescue a section of thick bamboo threaded connection.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the rescue lamp assemblies are arranged on the front surface and the rear surface of the rescue cylinder, the upper parts of the rescue lamp assemblies are sealed by the transparent plates, the transparent plates are in adhesive connection with the rescue cylinder through the sealant, the rescue lamp assemblies are protected, the lighting of the rescue lamp assemblies is not hindered, the batteries are placed in the battery cavities, the battery covers are used for sealing, when the rescue cylinder is thrown, personnel can observe the throwing route and the falling point of the rescue cylinder through the rescue lamp assemblies at night, compared with the existing rescue cylinder without a light reminding function, the rescue cylinder has the reminding effect, is convenient to find quickly, improves the convenience and the rescue efficiency, and reduces the searching time.
2. The storage cavity is formed in the inner portion of the rescue cylinder, the rescue cylinder is divided into two parts, one part is a small-caliber cylinder for storing life jackets, the other part is a large-caliber cylinder with a rescue lamp assembly, the storage cavity is formed in the large-caliber cylinder, partition plates are arranged in the storage cavity, six partition plates are distributed at equal intervals, compressed biscuits can be conveniently placed in formed gaps, the partition plates are utilized to play a limiting and fixing role, the situation that the compressed biscuits are prevented from shaking to affect a throwing track when the rescue cylinder is thrown is avoided, the stability is improved, meanwhile, the rescue functionality of the rescue cylinder is also improved through the storage cavity, secondary throwing is not needed to be carried out on food, the rescue efficiency is improved, and the throwing cost of the rescue cylinder is also reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a right side view of the rescue cylinder of the present invention;
fig. 3 is a schematic view of the inner structure of the rescue cylinder of the invention;
in the figure: 1. a throwing pipe; 2. a throwing cylinder; 3. a high pressure gas cylinder; 4. a valve train; 5. a control seat; 6. a quick-opening valve assembly; 7. a rescue cylinder; 8. an external connection seat; 9. a screw; 10. a rescue light assembly; 11. a transparent plate; 12. a guard ring; 13. a through groove; 14. a shock absorbing seat; 15. a damper plate; 16. a bolt; 17. a hand protection frame; 18. externally connecting a thread groove; 19. a sealing cover; 20. a waterproof sealing ring; 21. a storage chamber; 22. a partition plate; 23. a battery cavity; 24. a battery cover; 25. a shock-absorbing pad.
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.
Referring to fig. 1-3, the present embodiment provides a multifunctional pneumatic throwing device, which includes a throwing pipe 1, a throwing cylinder 2 is disposed at one end of the throwing pipe 1, a high-pressure gas cylinder 3 is disposed at one end of the throwing cylinder 2, a control base 5 is disposed below the high-pressure gas cylinder 3, a quick-opening valve assembly 6 is disposed at one side of the control base 5, a rescue cylinder 7 is disposed at the other end of the throwing pipe 1, rescue lamp assemblies 10 are disposed on both side surfaces of the rescue cylinder 7, a storage cavity 21 is disposed inside the rescue cylinder 7, a partition plate 22 is disposed on an inner wall of the storage cavity 21, a battery cavity 23 is disposed on a bottom surface of the storage cavity 21, the battery cavity 23 and the rescue cylinder 7 are integrated, an external connection base 8 is disposed at an upper end of the rescue cylinder 7, and a shock absorption base 14 is disposed at a lower end of the throwing cylinder 2.
The transparent plate 11 is arranged above the rescue lamp assembly 10 of the embodiment, the transparent plate 11 is adhesively connected with the rescue cylinder 7, and the two transparent plates 11 are arranged, so that the rescue lamp assembly 10 is protected and the lighting of the rescue lamp assembly 10 is not hindered. The outside of a rescue section of thick bamboo 7 is provided with guard ring 12, and guard ring 12 and a rescue section of thick bamboo 7 hot melt are connected, and guard ring 12 is provided with two, and the surface of a rescue section of thick bamboo 7 is provided with and runs through groove 13, and runs through groove 13 and run through a rescue section of thick bamboo 7, relies on guard ring 12 to prevent that a rescue section of thick bamboo 7 from falling to the ground to damage, improves the security. The opening end of the storage cavity 21 is provided with a sealing cover 19, a waterproof sealing ring 20 is arranged at the joint of the sealing cover 19 and the storage cavity 21, the opening end of the battery cavity 23 is provided with a battery cover 24, the upper surface of the battery cover 24 is provided with a damping pad 25, the damping pad 25 is in adhesive connection with the battery cover 24, six partition plates 22 are arranged, the battery is placed in the battery cavity 23 and sealed by the battery cover 24, and power is provided for the rescue lamp assembly 10.
In addition, be provided with damper plate 15 at the one end of damper seat 14, and damper plate 15 and 14 hot melt of damper seat are connected, and the other end of damper seat 14 is provided with bolt 16, and damper seat 14 passes through bolt 16 and throws cylinder 2 threaded connection, and the upper end of throwing cylinder 2 is provided with air valve mechanism 4, supports the human body through damper plate 15, reduces the recoil when launching. One side of cushion socket 14 is provided with hand protection frame 17, and hand protection frame 17 is connected with cushion socket 14 and 1 soaking of throwing pipe, hand protection frame 17 is provided with two, the side surface of external seat 8 is provided with external thread groove 18, and external thread groove 18 and external seat 8 structure as an organic whole, the one end of external seat 8 is provided with screw 9, and external seat 8 passes through screw 9 and rescue 7 threaded connection of a section of thick bamboo, play the safety protection effect to personnel's hand through hand protection frame 17.
The working principle is as follows: when in use, a rescue cylinder 7 with a life jacket small-bore cylinder is inserted into the throwing pipe 1, a high-pressure gas cylinder 3 is externally connected with an inflating device and is installed at one end of the throwing cylinder 2 after inflation is finished, a battery is placed into a battery cavity 23 and is sealed by a battery cover 24, compressed biscuits are stored by gaps formed by the equidistant distribution of six partition plates 22, the compressed biscuits are sealed by a sealing cover 19 and a waterproof sealing ring 20, an air valve mechanism 4 is opened when throwing, then a quick-opening valve component 6 is opened to drive the rescue cylinder 7 to emit, a reminding effect is achieved by using a rescue lamp component 10, persons can conveniently observe the throwing route and the dropping point of the rescue cylinder at night, the persons can quickly find the rescue cylinder 7, convenience and rescue efficiency are improved, the searching time is shortened, the rescue cylinder 7 is prevented from being damaged by the aid of a protective ring 12 when falling to the ground, the safety is improved, when the rescue cylinder 7 needs to be increased, the rescue cylinder 7 can be externally connected with a threaded column through an external connecting seat 8 and an external threaded groove 18, the functionality is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1.多功能气动抛投器,包括抛投管(1),其特征在于:所述抛投管(1)的一端设置有抛投气缸(2),所述抛投气缸(2)的一端设置有高压气瓶(3),所述高压气瓶(3)的下方设置有控制座(5),所述控制座(5)的一侧设置有快开阀组件(6),所述抛投管(1)的另一端设置有救援筒(7),所述救援筒(7)的两侧表面均设置有救援灯组件(10),所述救援筒(7)的内部设置有存放腔(21),所述存放腔(21)的内壁设置有分隔板(22),所述存放腔(21)的底面设置有电池腔(23),且电池腔(23)与救援筒(7)为一体结构,所述救援筒(7)的上端设置有外接座(8),所述抛投气缸(2)的下端设置有减震座(14)。1. A multifunctional pneumatic throwing device, comprising a throwing pipe (1), characterized in that: one end of the throwing pipe (1) is provided with a throwing cylinder (2), and one end of the throwing cylinder (2) is provided with a throwing cylinder (2). A high-pressure gas cylinder (3) is provided, a control seat (5) is provided below the high-pressure gas cylinder (3), and a quick-opening valve assembly (6) is provided on one side of the control seat (5). The other end of the casting tube (1) is provided with a rescue cylinder (7), both sides of the rescue cylinder (7) are provided with rescue light assemblies (10), and a storage cavity is provided inside the rescue cylinder (7). (21), the inner wall of the storage cavity (21) is provided with a partition plate (22), the bottom surface of the storage cavity (21) is provided with a battery cavity (23), and the battery cavity (23) is connected to the rescue cylinder (7). ) is an integrated structure, the upper end of the rescue cylinder (7) is provided with an external seat (8), and the lower end of the throwing cylinder (2) is provided with a shock-absorbing seat (14). 2.根据权利要求1所述的多功能气动抛投器,其特征在于:所述救援灯组件(10)的上方设置有透明板(11),且透明板(11)与救援筒(7)粘合连接,所述透明板(11)设置有两个。2 . The multifunctional pneumatic thrower according to claim 1 , wherein a transparent plate ( 11 ) is arranged above the rescue light assembly ( 10 ), and the transparent plate ( 11 ) is connected to the rescue cylinder ( 7 ). 3 . Adhesive connection, the transparent plate (11) is provided with two. 3.根据权利要求1所述的多功能气动抛投器,其特征在于:所述救援筒(7)的外部设置有防护圈(12),且防护圈(12)与救援筒(7)热熔连接,所述防护圈(12)设置有两个,所述救援筒(7)的表面设置有贯穿槽(13),且贯穿槽(13)贯穿救援筒(7)。3 . The multifunctional pneumatic thrower according to claim 1 , wherein a protective ring ( 12 ) is provided on the outside of the rescue cylinder ( 7 ), and the protective ring ( 12 ) is heated to the rescue cylinder ( 7 ). 4 . For fusion connection, two guard rings (12) are provided, a surface of the rescue cylinder (7) is provided with a through groove (13), and the through groove (13) penetrates the rescue cylinder (7). 4.根据权利要求1所述的多功能气动抛投器,其特征在于:所述存放腔(21)的开口端设置有密封盖(19),所述密封盖(19)与存放腔(21)连接处设置有防水密封圈(20),所述电池腔(23)的开口端设置有电池盖(24),所述电池盖(24)的上表面设置有减震垫(25),且减震垫(25)与电池盖(24)粘合连接,所述分隔板(22)设置有六个。4. The multifunctional pneumatic thrower according to claim 1, wherein a sealing cover (19) is provided at the open end of the storage cavity (21), and the sealing cover (19) is connected to the storage cavity (21). ) connection is provided with a waterproof sealing ring (20), the open end of the battery cavity (23) is provided with a battery cover (24), the upper surface of the battery cover (24) is provided with a shock pad (25), and The shock-absorbing pad (25) is adhesively connected with the battery cover (24), and there are six partition plates (22). 5.根据权利要求1所述的多功能气动抛投器,其特征在于:所述减震座(14)的一端设置有减震板(15),且减震板(15)与减震座(14)热熔连接,所述减震座(14)的另一端设置有螺栓(16),且减震座(14)通过螺栓(16)与抛投气缸(2)螺纹连接,所述抛投气缸(2)的上端设置有气阀机构(4)。5 . The multifunctional pneumatic thrower according to claim 1 , wherein a shock absorbing plate ( 15 ) is provided at one end of the shock absorbing seat ( 14 ), and the shock absorbing plate ( 15 ) is connected to the shock absorbing seat 5 . (14) Hot-melt connection, the other end of the shock-absorbing seat (14) is provided with a bolt (16), and the shock-absorbing seat (14) is threadedly connected to the throwing cylinder (2) through the bolt (16), and the throwing cylinder (2) is threaded. The upper end of the casting cylinder (2) is provided with a gas valve mechanism (4). 6.根据权利要求1所述的多功能气动抛投器,其特征在于:所述减震座(14)的一侧设置有手部防护架(17),且手部防护架(17)与减震座(14)和抛投管(1)均热熔连接,所述手部防护架(17)设置有两个,所述外接座(8)的侧表面设置有外接螺纹槽(18),且外接螺纹槽(18)与外接座(8)为一体结构,所述外接座(8)的一端设置有螺钉(9),且外接座(8)通过螺钉(9)与救援筒(7)螺纹连接。6 . The multifunctional pneumatic thrower according to claim 1 , wherein a hand protection frame ( 17 ) is provided on one side of the shock-absorbing seat ( 14 ), and the hand protection frame ( 17 ) is connected with the hand protection frame ( 17 ). The shock-absorbing seat (14) and the throwing tube (1) are both thermally fused and connected, two of the hand protection frames (17) are provided, and the side surface of the outer seat (8) is provided with an outer thread groove (18) , and the external thread groove (18) and the external socket (8) are integrated into one structure, one end of the external socket (8) is provided with a screw (9), and the external socket (8) is connected to the rescue cylinder (7) through the screw (9). ) threaded connection.
CN202111329499.7A 2021-11-10 2021-11-10 Multifunctional pneumatic throwing device Pending CN113865428A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2668508Y (en) * 2004-01-13 2005-01-05 薛亚明 Life-saving casting device
CN201731813U (en) * 2010-06-30 2011-02-02 厦门市神手科技有限公司 Portable life-saving thrower
CN201842237U (en) * 2010-09-27 2011-05-25 黄山市齐云消防装备有限公司 Lifesaving thrower
CN106043626A (en) * 2016-07-20 2016-10-26 太原融盛科技有限公司 Water-disaster grapple shot and throwing device thereof
CN209410303U (en) * 2018-08-15 2019-09-20 厦门市神手科技有限公司 A kind of convenient lifesaving throwing throwing device that can repeatedly emit
CN214190040U (en) * 2020-12-23 2021-09-14 厦门天正工贸有限公司 Emergency throwing equipment
CN216011951U (en) * 2021-11-10 2022-03-11 江苏安航船舶设备有限公司 Multifunctional pneumatic throwing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2668508Y (en) * 2004-01-13 2005-01-05 薛亚明 Life-saving casting device
CN201731813U (en) * 2010-06-30 2011-02-02 厦门市神手科技有限公司 Portable life-saving thrower
CN201842237U (en) * 2010-09-27 2011-05-25 黄山市齐云消防装备有限公司 Lifesaving thrower
CN106043626A (en) * 2016-07-20 2016-10-26 太原融盛科技有限公司 Water-disaster grapple shot and throwing device thereof
CN209410303U (en) * 2018-08-15 2019-09-20 厦门市神手科技有限公司 A kind of convenient lifesaving throwing throwing device that can repeatedly emit
CN214190040U (en) * 2020-12-23 2021-09-14 厦门天正工贸有限公司 Emergency throwing equipment
CN216011951U (en) * 2021-11-10 2022-03-11 江苏安航船舶设备有限公司 Multifunctional pneumatic throwing device

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