Mounting inner cylinder structure of fire extinguishing device

By combining a foot-operated valve with a spring clip, the fire extinguishing nozzle and inner cylinder are installed automatically, solving the problem of unstable assembly of fire extinguishing devices in confined spaces. This achieves efficient and stable assembly of fire extinguishing devices and reduces labor intensity.

CN223874301UActive Publication Date: 2026-02-06HEBEI MELBERG SAFETY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520048671.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-06
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing fire extinguishing devices suffer from poor uniformity and inconsistent quality during assembly in confined spaces, and manual assembly is labor-intensive.

Method used

The design employs a combination of foot-operated valve and spring clip, which automatically installs the fire extinguishing nozzle onto the inner cylinder. The interference fit of the annular flared mouth ensures a tight connection between the fire extinguishing nozzle and the inner cylinder, avoiding welding.

Benefits of technology

The automated assembly of fire extinguishing devices has been achieved, which has improved the stability and uniformity of product quality, reduced labor intensity, simplified the processing technology, and improved assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mounting inner cylinder structure of a fire extinguishing device, and belongs to the technical field of aerosol fire extinguishing. A fire extinguishing device installation inner barrel structure comprises a fire extinguishing assembly and further comprises an SC type air cylinder, the fire extinguishing assembly is located above the SC type air cylinder, an air compressor is arranged on one side of the SC type air cylinder, a pedal type valve is arranged on the other side of the SC type air cylinder, a spring clamping head is arranged at the upper end of the SC type air cylinder, and the SC type air cylinder is fixed above the ground through a support. A gas circuit filter is arranged on the side face of the support. In order to solve the problems that in the assembling process of the passive self-sensing fire extinguishing device, the uniformity of products is poor, and the quality is difficult to stabilize, spring clamping heads at the upper end of an SC type air cylinder are opened through a pedal type valve, then a fire extinguishing nozzle is placed between the spring clamping heads, then an assembled inner barrel is placed on the fire extinguishing nozzle, and finally the spring clamping heads are closed; the fire extinguishing nozzle is installed on the inner cylinder, automation is achieved, and the stability of product quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to aerosol fire extinguishing technical field, concretely is a kind of fire extinguishing device installation inner tube structure. BACKGROUND

[0002] The occurrence of fire often causes significant loss to people's life and property, and appropriate fire-fighting equipment is essential to extinguish fire in its infancy, but different places have different requirements for fire-fighting equipment. In modern working and living environment, ordinary fire extinguishing devices can effectively solve the problem of fire extinguishing in relatively small places such as transportation tools, electronic equipment, household appliances, kitchen and the like, but for more narrow space such as power distribution cabinet, small unattended base station and the like, if existing fire extinguishing devices are used, they often have low fire extinguishing efficiency and can cause harm to human body or other objects. The passive self-induction fire extinguishing device uses heat and smoke generated during fire outbreak to start, without external power supply or controller. The principle is that a special chemical agent is contained in the device. When fire occurs, heat and smoke will cause the chemical agent to react, generating a large amount of inert gas to extinguish the fire.

[0003] When assembling the inner cylinder and nozzle of the fire extinguishing device, the assembly method is usually manual installation, and personnel use pliers and screwdrivers and other tools for assembly. However, during manual assembly, due to different installation forces or methods, there are problems such as poor uniformity of the passive self-induction fire extinguishing device during assembly and unstable quality. Therefore, the existing needs are not met, and a fire extinguishing device installation inner tube structure is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a fire extinguishing device installation inner tube structure. The spring chuck at the upper end of the SC type cylinder is opened by the foot valve, the fire extinguishing nozzle is placed between the spring chucks, the assembled inner cylinder is placed on the fire extinguishing nozzle, and finally the spring chucks are closed, so that the fire extinguishing nozzle is installed on the inner cylinder, achieving automation and improving the stability of product quality, which can solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fire extinguishing device installation inner tube structure, comprising a fire extinguishing assembly, further comprising an SC type cylinder, the fire extinguishing assembly is located above the SC type cylinder, one side of the SC type cylinder is provided with an air compressor, the other side of the SC type cylinder is provided with a foot valve, the upper end of the SC type cylinder is provided with a spring chuck, the SC type cylinder is fixed above the ground through a support, and the side surface of the support is provided with an air path filter, the fire extinguishing assembly comprises an inner cylinder, the inner cylinder is a hollow cylindrical structure, one end of the inner cylinder is an open end, the other end of the inner cylinder is a closed end, the open end of the inner cylinder is provided with a fire extinguishing nozzle, and the inside of the fire extinguishing nozzle is provided with a fire extinguishing port.

[0006] Preferably, the air compressor is connected with the air inlet end of the air path filter through an air source pipeline, the air outlet end of the air path filter is connected with the air inlet end of the foot valve through an air source pipeline, and the air outlet end of the foot valve is connected with the SC type cylinder through an air source pipeline.

[0007] Preferably, the inside of the inner cylinder is sequentially provided with a fire extinguishing nozzle, a stainless steel blocking ring, a coolant, a fire extinguishing propellant column and a temperature-sensitive wire from the open end to the closed end, and a heat preservation and insulation layer is arranged between the fire extinguishing propellant column and the inner cylinder.

[0008] Preferably, the fire extinguishing nozzle is in a ring structure, the outer ring surface of the fire extinguishing nozzle is provided with a ring groove, the open end of the inner cylinder is provided with a joint ring, the side surface of the joint ring is provided with an O-shaped ring, and the joint ring is located in the inside of the ring groove.

[0009] Preferably, the inside of the fire extinguishing nozzle is provided with a ring-shaped horn mouth, and the ring groove is connected with the fire extinguishing nozzle through the ring-shaped horn mouth.

[0010] Preferably, the upper end of the ring-shaped horn mouth is a necked opening, the lower end of the ring-shaped horn mouth is an expanded opening, and the expanded opening end of the ring-shaped horn mouth is connected with the ring groove.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a foot valve opens the spring chuck on the upper end of the SC type cylinder, then places the fire extinguishing nozzle between the spring chuck, the spring chuck is provided with a positioning shaft, the fire extinguishing nozzle is sleeved on the positioning shaft, can guarantee that the fire extinguishing nozzle is matched with the center of the inner cylinder, then places the assembled inner cylinder on the fire extinguishing nozzle, finally closes the spring chuck, makes the fire extinguishing nozzle install on the inner cylinder, realizes the automation, improves the stability of product quality.

[0013] 2、The utility model discloses a ring-shaped horn mouth is arranged in the inside of the fire extinguishing nozzle, the upper end of the ring-shaped horn mouth is a necked opening, the lower end of the ring-shaped horn mouth is an expanded opening, when the fire extinguishing nozzle is installed on the inner cylinder, the expanded opening end of the ring-shaped horn mouth is located in the inside of the inner cylinder, the diameter of the expanded opening end of the ring-shaped horn mouth is greater than the inner diameter of the inner cylinder, is in interference fit, makes the fire extinguishing nozzle and the inner cylinder after assembling as integrated structure, makes it unnecessary to weld the joint of the fire extinguishing nozzle and the inner cylinder, thereby simplifies the processing technology, improves the assembling efficiency, is helpful to improving the unity of product. DRAWINGS

[0014] Figure 1 It is the overall front view of the utility model;

[0015] Figure 2 It is the fire extinguishing assembly sectional view of the utility model;

[0016] Figure 3The utility model discloses a fire extinguishing nozzle local structure schematic view.

[0017] Figure 4 The utility model discloses an inner tube local structure schematic view.

[0018] In the drawing: 1, air compressor, 2, gas source pipeline, 3, gas path filter, 4, foot valve, 5, SC type cylinder, 6, spring chuck, 7, fire extinguishing assembly, 8, temperature sensing hot wire, 9, fire extinguishing propellant, 10, coolant, 11, inner tube, 1101, interface ring, 12, stainless steel baffle ring, 13, O ring, 14, fire extinguishing spout, 15, fire extinguishing nozzle, 1501, annular horn mouth, 1502, annular groove. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0020] In order to solve the poor uniformity of product and the quality difficult to stabilize in the assembly process of passive self-induction fire extinguishing device, please refer to Figures 1-4 The utility model provides an embodiment: a fire extinguishing device installation inner tube structure, including fire extinguishing assembly 7, still including SC type cylinder 5, fire extinguishing assembly 7 is located the top of SC type cylinder 5, one side of SC type cylinder 5 is provided with air compressor 1, the other side of SC type cylinder 5 is provided with foot valve 4, and the upper end of SC type cylinder 5 is provided with spring chuck 6, and SC type cylinder 5 is fixed on the ground through support, and the side of support is provided with gas path filter 3, and fire extinguishing assembly 7 includes inner tube 11, and the inner tube 11 is hollow cylindrical structure, and one end of the inner tube 11 is open end, and the other end of the inner tube 11 is closed end, and the open end of the inner tube 11 is provided with fire extinguishing nozzle 15, and the inside of fire extinguishing nozzle 15 is provided with fire extinguishing spout 14.

[0021] Air compressor 1 and the air inlet end of gas path filter 3 are connected through gas source pipeline 2, the air outlet end of gas path filter 3 and the air inlet end of foot valve 4 are connected through gas source pipeline 2, the air outlet end of foot valve 4 and SC type cylinder 5 are connected through gas source pipeline 2, the inside of inner tube 11 is sequentially provided with fire extinguishing nozzle 15, stainless steel baffle ring 12, coolant 10, fire extinguishing propellant 9 and temperature sensing hot wire 8 along open end to closed end, and heat insulation layer is arranged between fire extinguishing propellant 9 and inner tube 11.

[0022] The personnel opens the spring chuck 6 at the upper end of the SC type air cylinder 5 through the foot valve 4, then places the fire extinguishing nozzle 15 between the spring chucks 6, wherein the spring chucks 6 are provided with positioning shafts, the fire extinguishing nozzle 14 is sleeved on the positioning shafts, the fire extinguishing nozzle 15 can be matched with the center of the inner cylinder 11, then places the assembled inner cylinder 11 on the fire extinguishing nozzle 15, and finally closes the spring chucks 6 through the foot valve 4 again, so that the fire extinguishing nozzle 15 is installed on the inner cylinder 11, thereby completing the assembly of the fire extinguishing assembly 7, realizing automation, reducing labor intensity, and further improving the stability of product quality.

[0023] The fire extinguishing nozzle 15 is in a ring structure, the outer ring surface of the fire extinguishing nozzle 15 is provided with a ring groove 1502, the open end of the inner cylinder 11 is provided with an interface ring 1101, the side surface of the interface ring 1101 is provided with an O-shaped ring 13, the interface ring 1101 is located inside the ring groove 1502, the inside of the fire extinguishing nozzle 15 is provided with a ring-shaped bell mouth 1501, the ring groove 1502 and the fire extinguishing nozzle 14 are connected through the ring-shaped bell mouth 1501, the upper end of the ring-shaped bell mouth 1501 is a necked portion, the lower end of the ring-shaped bell mouth 1501 is an expanded portion, and the expanded end of the ring-shaped bell mouth 1501 is connected with the ring groove 1502.

[0024] When the fire extinguishing nozzle 15 is installed on the inner cylinder 11, the expanded end of the ring-shaped bell mouth 1501 is located inside the inner cylinder 11, the diameter of the expanded end of the ring-shaped bell mouth 1501 is greater than the inner diameter of the inner cylinder 11, an interference fit is realized, so that the fire extinguishing nozzle 15 and the inner cylinder 11 are integrated after assembly, thereby eliminating the need for welding at the joint of the fire extinguishing nozzle 15 and the inner cylinder 11, further simplifying the processing technology, improving the assembly efficiency, helping to improve the uniformity of the product, and further ensuring the stability of the product quality.

[0025] Working principle: the personnel opens the spring chuck 6 at the upper end of the SC type air cylinder 5 through the foot valve 4, then places the fire extinguishing nozzle 15 between the spring chucks 6, thereafter places the assembled inner cylinder 11 on the fire extinguishing nozzle 15, and finally closes the spring chucks 6 through the foot valve 4 again, so that the fire extinguishing nozzle 15 is installed on the inner cylinder 11, thereby completing the assembly of the fire extinguishing assembly 7, realizing automation, reducing labor intensity, and helping to improve the stability of product quality.

[0026] It is to be noted that, in the present text, the terms such as first and second, and the like, are used merely to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprising", "containing", or any other variant thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application.

Claims

1. An installation inner tube structure of a fire extinguishing device including a fire extinguishing assembly (7), characterized by; Also include SC type cylinder (5), the fire extinguishing assembly (7) is located above SC type cylinder (5), one side of SC type cylinder (5) is provided with air compressor (1), the other side of SC type cylinder (5) is provided with foot valve (4), the upper end of SC type cylinder (5) is provided with spring chuck (6), SC type cylinder (5) is fixed above ground through support, the side of support is provided with air path filter (3), the fire extinguishing assembly (7) includes inner cylinder (11), the inner cylinder (11) is hollow cylindrical structure, one end of inner cylinder (11) is open end, the other end of inner cylinder (11) is closed end, the open end of inner cylinder (11) is provided with fire extinguishing nozzle (15), the inside of fire extinguishing nozzle (15) is provided with fire extinguishing nozzle (14).

2. The installation inner tube structure of a fire extinguishing device according to claim 1, characterized by: The air compressor (1) is connected with the air inlet end of air path filter (3) through air source pipeline (2), the air outlet end of air path filter (3) is connected with the air inlet end of foot valve (4) through air source pipeline (2), the air outlet end of foot valve (4) is connected with SC type cylinder (5) through air source pipeline (2).

3. The installation inner tube structure of a fire extinguishing device according to claim 1, characterized in that: The inside of the inner cylinder (11) is sequentially provided with fire extinguishing nozzle (15), stainless steel blocking ring (12), coolant (10), fire extinguishing propellant (9) and temperature-sensitive wire (8) from open end to closed end, and a heat preservation and insulation layer is arranged between the fire extinguishing propellant (9) and the inner cylinder (11).

4. The installation inner tube structure of a fire extinguishing device according to claim 1, characterized by: The fire extinguishing nozzle (15) is annular structure, the outer ring surface of fire extinguishing nozzle (15) is provided with annular groove (1502), the open end of inner cylinder (11) is provided with interface ring (1101), the side of interface ring (1101) is provided with O-ring (13), and the interface ring (1101) is located in the inside of annular groove (1502).

5. The installation inner tube structure of a fire extinguishing device according to claim 1, characterized by: The inside of the fire extinguishing nozzle (15) is provided with annular horn mouth (1501), and the annular groove (1502) and the fire extinguishing nozzle (14) are connected through the annular horn mouth (1501).

6. The installation inner tube structure of a fire extinguishing device according to claim 5, characterized by: The upper end of the annular horn mouth (1501) is a necked opening, the lower end of the annular horn mouth (1501) is an expanded opening, and the expanded opening end of the annular horn mouth (1501) is connected with the annular groove (1502).