A backpack fire-fighting device

Abstract

This invention relates to the field of fire extinguishing technology, and in particular to a backpack-type fire extinguishing device, comprising shoulder straps for convenient carrying, a supporting back plate fixedly installed on the outer side of the shoulder straps, and a modular upper assembly limiting frame and a modular lower assembly limiting seat fixedly mounted on the outer surface of the supporting back plate. The backpack-type fire extinguishing device of this invention, by fixing the supporting back plate to the outer side of the shoulder straps, can improve rear support and reduce fatigue; the modular upper assembly limiting frame and modular lower assembly limiting seat fixedly mounted on the outer surface of the supporting back plate allow for quick assembly and disassembly of detachable fire extinguishing tanks, enabling the installation of multiple fire extinguishing tanks in a single time period, greatly enhancing operability.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing technology, and in particular to a backpack fire extinguishing device. Background Technology

[0002] Backpack fire extinguishers are personal, portable fire-fighting devices with a wide range of applications in firefighting operations, primarily including fire extinguishing, rescue, and protection functions.

[0003] By carrying the equipment on one's back, one can not only free up their hands but also increase the load capacity, allowing for the carrying of more fire extinguishing devices.

[0004] However, existing backpack fire-fighting equipment can only carry a single quantity and type of fire-fighting storage tank within a single time period, resulting in a very limited quantity and type of tanks that can be carried. Furthermore, it cannot be quickly released or disassembled after use, making operation very inconvenient and inflexible. Summary of the Invention

[0005] The technical problem that this invention aims to solve is that the existing backpack fire-fighting devices have a very limited number and variety of load-bearing devices, and cannot be quickly released or disassembled after use, resulting in inconvenient operation and low flexibility.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a backpack fire-fighting device, including a shoulder strap for convenient carrying, a supporting back plate fixedly installed on the outer side of the shoulder strap, a modular upper assembly limiting frame and a modular lower assembly limiting seat fixedly assembled on the outer side of the supporting back plate, a detachable fire extinguishing tank installed between the modular upper assembly limiting frame and the modular lower assembly limiting seat, and internal threaded connecting heads for convenient connection on both outer walls of the modular lower assembly limiting seat, with an external control nozzle threadedly fixed to the outer end of the modular lower assembly limiting seat.

[0007] The modular upper mounting limit frame includes a central upper mounting base fixed to the upper outer side of the support back plate, a central upper limit frame bolted to the outer side of the central upper mounting base, and side upper limit frames threaded to both sides of the central upper limit frame.

[0008] The modular lower assembly limiting seat includes a central lower fixing seat fixed to the lower end of the outer side of the support back plate, a central lower mounting seat bolted to the outer side of the central lower fixing seat, and a side quick-release lower connecting seat threaded to both sides of the central lower mounting seat.

[0009] The detachable fire extinguishing tank includes a main tank body and a quick-release bottom connector axially fixed to the bottom of the main tank body.

[0010] The internal thread connector is fixed on both sides of the centrally located lower mounting base. One side of the side-mounted quick-release lower mounting base has an external thread assembly tube that mates with the internal thread connector, and the other side of the side-mounted quick-release lower mounting base has a side-mounted internal thread assembly tube.

[0011] A side-mounted rotating locking head is movably mounted on the side wall of the side-mounted quick-release lower connecting seat. An internal threaded telescopic block is threaded onto the outer side of the side-mounted rotating locking head, and an arc-shaped limiting frame is fixedly mounted on the inner end of the internal threaded telescopic block.

[0012] An annular limiting groove is provided on the outer side of the quick-release bottom connector.

[0013] Both the internal threaded connector and the inner opening of the side-mounted internal threaded assembly tube are elastically fitted with internal check plates. The connecting end of the external control nozzle and the inside of the external threaded assembly tube are both fixed with internal extrusion rods by internal brackets.

[0014] The width of the annular limiting groove gradually decreases from the outside to the inside.

[0015] The inner arc-shaped surfaces of the central upper limit frame and the side upper limit frame are fixed with detachable rubber shock-absorbing pads.

[0016] The beneficial effects of this invention are: (1) A backpack fire-fighting device of the present invention has a support back plate fixedly installed on the outside of the shoulder strap. The support back plate can improve the rear support force and reduce fatigue. (2) A modular upper assembly limit frame and a modular lower assembly limit seat are fixedly installed on the outer side of the support back plate, so that the detachable fire extinguishing tank can be quickly disassembled and assembled, and multiple fire extinguishing tanks can be installed in a single time period, greatly enhancing operability. (3) By using upper and lower limiters, the force application position of the carrying device can be increased, thereby improving comfort; (4) Users can freely change their left and right hand operating habits according to their own habits, making it more widely applicable. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the detachable fire extinguishing tank after disassembly in this invention.

[0020] Figure 3 This is a schematic diagram of the structure of the detachable fire extinguishing tank after installation in this invention.

[0021] Figure 4This is a schematic diagram of the internal structure of the modular lower assembly limit seat assembly end in this invention. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 and Figure 4 The illustrated backpack fire-fighting device includes a shoulder strap 1 for easy carrying, a support back plate 2 fixedly installed on the outer side of the shoulder strap 1, a modular upper assembly limiting frame 3 and a modular lower assembly limiting seat 4 fixedly mounted on the outer surface of the support back plate 2, a detachable fire extinguishing tank 5 installed between the modular upper assembly limiting frame 3 and the modular lower assembly limiting seat 4, and internal threaded connectors 6 on both outer walls of the modular lower assembly limiting seat 4 for easy connection, with an external control nozzle 7 threadedly fixed to the outer end of the modular lower assembly limiting seat 4.

[0025] To accommodate the top assembly limit, the modular upper assembly limit frame 3 includes a central upper mounting base 31 fixed to the upper outer side of the support back plate 2, a central upper limit frame 32 bolted to the outer side of the central upper mounting base 31, and a side upper limit frame 33 threaded to both sides of the central upper limit frame 32.

[0026] To facilitate bottom assembly connection, the modular lower assembly limiting seat 4 includes a central lower fixing seat 41 fixed to the lower end of the outer side of the support back plate 2, a central lower mounting seat 42 bolted to the outer side of the central lower fixing seat 41, and a side quick-release lower connecting seat 43 threaded to both sides of the central lower mounting seat 42.

[0027] To facilitate installation and connection, the detachable fire extinguishing tank 5 includes a main tank body 51 and a quick-release bottom connector 52 axially fixed to the bottom of the main tank body 51.

[0028] To facilitate threaded assembly and fixation, the internal threaded connector 6 is fixed on both sides of the centrally located lower mounting base 42. The side-mounted quick-release lower mounting base 43 has an external threaded assembly tube 431 that mates with the internal threaded connector 6 on one side, and a side-mounted internal threaded assembly tube 432 on the other side.

[0029] To facilitate manual disassembly and assembly, a side-mounted rotating locking head 44 is movably mounted on the side wall of the side-mounted quick-release lower connecting seat 43. An internal threaded telescopic block 45 is threaded onto the outer side of the side-mounted rotating locking head 44, and an arc-shaped limiting frame 46 is fixedly mounted on the inner end of the internal threaded telescopic block 45.

[0030] To accommodate the compression limit, an annular limiting groove 47 is provided on the outer side of the quick-release bottom connector 44.

[0031] To accommodate the elastic backflow prevention, internal backflow prevention plates 8 are elastically fitted at the inner opening positions of the internal threaded connector 6 and the side-mounted internal threaded assembly tube 432. Internal extrusion rods 9 are fixed to the connecting end of the external control nozzle 7 and the inside of the external threaded assembly tube 431 through internal brackets.

[0032] When the side-mounted quick-release lower connecting seat 43 is screwed into the side-mounted internal thread assembly tube 432 through the external thread assembly tube 431, the internal pressing rod 9 presses the internal check plate 8, so that the central lower mounting seat 42 and the side-mounted quick-release lower connecting seat 43 are fixedly connected. When the connecting end of the external control nozzle 7 is threaded into the side-mounted internal thread assembly tube 432 on the other side of the side-mounted quick-release lower connecting seat 43, the internal pressing rod 9 presses the internal check plate 8, so that the external control nozzle 7 and the side-mounted quick-release lower connecting seat 43 are fixedly connected.

[0033] To improve the stability of the extrusion limit, the width of the annular limit groove 47 gradually decreases from the outside to the inside.

[0034] When people control the side-mounted rotating locking head 44 to rotate, the internal threaded telescopic block 45 is pushed inward, thereby causing the arc-shaped limiting frame 46 to be inserted into the annular limiting groove 47, thereby controlling the quick-release bottom connector 44 to be pushed downward, and at the same time limiting and fixing the quick-release bottom connector 44 to the modular lower assembly limiting seat 4.

[0035] To reduce friction and impact, detachable rubber shock-absorbing pads 34 are snapped onto the inner arc-shaped surfaces of the central upper limit frame 32 and the side upper limit frame 33.

[0036] Circular limiting holes are made on the limiting rings on the outer sides of the central upper limit frame 32 and the side upper limit frame 33. The detachable rubber shock-absorbing pad 34 is fixedly assembled with the limiting rings on the outer sides of the central upper limit frame 32 and the side upper limit frame 33 by inserting the outer mounting buckle into the circular limiting hole.

[0037] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A backpack-type firefighting device, comprising shoulder straps (1) for convenient carrying, characterized in that: A support back plate (2) is fixedly installed on the outer side of the shoulder strap (1). A modular upper assembly limit frame (3) and a modular lower assembly limit seat (4) are fixedly assembled on the outer side of the support back plate (2). A detachable fire extinguishing tank (5) is installed between the modular upper assembly limit frame (3) and the modular lower assembly limit seat (4). Both sides of the outer wall of the modular lower assembly limit seat (4) have internal threaded connectors (6) for easy connection. An external control nozzle (7) is threadedly fixed to the outer end of the modular lower assembly limit seat (4).

2. The backpack-type fire-fighting device according to claim 1, characterized in that: The modular upper mounting limit frame (3) includes a central upper mounting base (31) fixed to the upper outer side of the support back plate (2), a central upper limit frame (32) bolted to the outer side of the central upper mounting base (31), and a side upper limit frame (33) threaded to both sides of the central upper limit frame (32).

3. The backpack-type fire-fighting device according to claim 1, characterized in that: The modular lower assembly limiting seat (4) includes a central lower fixing seat (41) fixed to the lower end of the outer side of the support back plate (2), a central lower mounting seat (42) bolted to the outer side of the central lower fixing seat (41), and a side quick-release lower connecting seat (43) threaded to both sides of the central lower mounting seat (42).

4. A backpack-type fire-fighting device according to claim 1, characterized in that: The detachable fire extinguishing tank (5) includes a main tank body (51) and a quick-release bottom connector (52) axially fixed to the bottom of the main tank body (51).

5. A backpack-type fire-fighting device according to claim 3, characterized in that: The internal thread connector (6) is fixed on both sides of the centrally located lower mounting base (42). The side-mounted quick-release lower mounting base (43) has an external thread assembly tube (431) that mates with the internal thread connector (6) on one side, and a side-mounted internal thread assembly tube (432) on the other side.

6. A backpack-type fire-fighting device according to claim 3, characterized in that: The side-mounted quick-release lower connecting seat (43) is movably fitted with a side-mounted rotating locking head (44), and an internal threaded telescopic block (45) is threaded on the outer side of the side-mounted rotating locking head (44). An arc-shaped limiting frame (46) is fixedly fitted on the inner end of the internal threaded telescopic block (45).

7. A backpack-type fire-fighting device according to claim 4, characterized in that: The quick-release bottom connector (52) has an annular limiting groove (47) on its outer side.

8. A backpack-type fire-fighting device according to claim 5, characterized in that: The internal threaded connector (6) and the side-mounted internal threaded assembly tube (432) are both elastically fitted with internal check plates (8) at their inner opening positions. The connection end of the external control nozzle (7) and the interior of the external threaded assembly tube (431) are both fixed with internal extrusion rods (9) by internal brackets.

9. A backpack-type fire-fighting device according to claim 7, characterized in that: The width of the annular limiting groove (47) gradually decreases from the outside to the inside.

10. A backpack-type fire-fighting device according to claim 2, characterized in that: A detachable rubber shock-absorbing pad (34) is snapped onto the inner arc-shaped surface of the central upper limit frame (32) and the side upper limit frame (33).

Images