CN216258815U

CN216258815U - High-strength composite fire extinguisher

Info

Publication number: CN216258815U
Application number: CN202121521186.7U
Authority: CN
Inventors: 朱涛; 朱文宾
Original assignee: Danyang Influx Technology Co ltd
Current assignee: Danyang Influx Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-04-12
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a high-strength composite fire extinguisher. The pressure plate is pressed on the upper end surfaces of the inner protective layer and the joint inserts, and the outer pressure bearing layer is wound and wrapped on the peripheries of the pressure plate and the inner protective layer; the top of the shell is provided with a joint valve body, and the inner cavity of the shell is directly used as a filling cavity for filling fire extinguishing agent. The advantages are that: the fire extinguishing agent has the advantages of being corrosion-resistant, having very high integral strength, avoiding the defect of insufficient pressure bearing of a single blow molding material shell, greatly prolonging the storage time of the fire extinguishing agent, meeting the popularization and use requirements, greatly prolonging the service life, greatly lightening the integral weight, facilitating the operation and use, being easier to manufacture, having low cost and improving the product competitiveness.

Description

High-strength composite fire extinguisher

Technical Field

The utility model relates to special fire-fighting equipment, in particular to a high-strength compound fire extinguisher.

Background

The fire extinguisher is widely applied to daily life as a common fire fighting device, the existing fire extinguisher generally comprises a shell made of metal materials, a connector screwed at the top of the shell and a spray valve arranged on the connector, and different types of fire extinguishing agents are placed in the shell according to requirements. The existing fire extinguisher made of the metal material not only has complex manufacturing process and high manufacturing cost, but also is easy to generate corrosion problem when being stored in the fire extinguisher for a long time because most of the fire extinguishing agent contained in the fire extinguisher has corrosiveness, and in addition, the fire extinguisher has very heavy weight and inconvenient operation when being used. At present, a solution for manufacturing the shell by adopting a plastic material is provided, and although the problems of easy corrosion, heavy weight and difficult operation are solved, the overall strength is reduced to some extent, certain potential safety hazards are brought, and higher industrial requirements are difficult to achieve, so that the application of the shell is limited.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a high-strength composite fire extinguisher which has high overall strength, safe use, easy manufacture, strong corrosion resistance and light weight.

In order to solve the technical problem, the high-strength compound fire extinguisher comprises a shell, a joint insert, a pressing plate, a pressure plate and an outer pressure bearing layer, wherein the shell is formed by an inner protective layer which is formed by adopting a high polymer material through blow molding and an outer pressure bearing layer which is compounded outside the inner protective layer and is made of glass fiber reinforced plastic; the top of the shell is provided with a joint valve body communicated with the inner cavity of the shell, and the inner cavity of the shell is directly used as a filling cavity for filling fire extinguishing agent.

The bottom of the shell is provided with a base.

The fire extinguishing agent is foam water solution, dry powder, carbon dioxide or heptafluoropropane.

A first sealing ring is embedded among the inner protective layer, the joint insert and the pressing plate, and a second sealing ring is also embedded between the joint insert and the joint valve body.

The connector insert is provided with a central threaded hole, the upper surface of the connector insert is provided with a step-shaped cross section structure, the inner protective layer is pressed on the step surface of the connector insert, and the connector valve body is screwed in the central threaded hole of the connector insert.

The pressure plate is provided with a counter bore, and a fastener used for pressing the pressure plate on the end faces of the inner protective layer and the joint insert is installed in the counter bore.

The joint insert is provided with a central upper boss, an external thread is arranged on the central upper boss, an internal thread matched with the external thread is arranged on the pressing plate, and the pressing plate is screwed on the central upper boss of the joint insert and tightly pressed on the inner protective layer and the end face of the joint insert.

The connector insert is provided with a central threaded hole, the middle part of the pressing plate is provided with a central lower boss, the central lower boss is externally provided with an external thread matched with the central threaded hole, the pressing plate is directly screwed on the connector insert through the central lower boss and presses an internal protective layer on the upper surface of the connector insert, the central lower boss is provided with a threaded inner hole, and the connector valve body is screwed in the threaded inner hole of the central lower boss.

The bottom of the shell is arranged into a bowl-shaped structure, the base is provided with a placement cavity for embedding the bottom of the shell, and the bowl-shaped structure part of the bottom of the shell is directly embedded into the placement cavity of the shell.

The utility model has the advantages that:

the shell of the fire extinguishing tank is composed of an inner protective layer formed by blow molding of a high polymer material and an outer bearing layer which is compounded outside the inner protective layer and made of glass fiber reinforced plastic materials, the fire extinguishing tank can resist corrosion, the integral strength of the fire extinguishing tank is very high, the defect of insufficient bearing of a single blow molding material shell is overcome, the storage time of a fire extinguishing agent is greatly prolonged, the popularization and use requirements are met, meanwhile, the service life is greatly prolonged, in addition, the overall weight is greatly reduced due to the compound structural design, the operation and the use are facilitated, the manufacturing are easier, the manufacturing cost is low, the product competitiveness is improved, furthermore, the embedded joint insert is arranged at the top of the fire extinguishing tank, the connection reliability is guaranteed by compounding in the shell, the whole tank body structure is completely seamless, the sealing performance is guaranteed, no leakage exists, and very high pressure can be borne.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of a third embodiment of the present invention.

Detailed Description

The high-strength composite fire extinguisher of the present invention may be a portable fire extinguisher or a cart fire extinguisher, and will be further described in detail with reference to the accompanying drawings and the following detailed description.

The first embodiment is as follows:

as shown in fig. 1-2, the high-strength composite fire extinguisher of the present embodiment includes a housing 3 composed of an inner protective layer 1 formed by blow molding of a polymer material and an outer pressure bearing layer 2 made of a glass fiber reinforced plastic material and compounded outside the inner protective layer, a joint insert 4 directly embedded into the housing is provided at the top of the housing 3, as can be seen from fig. 2, the upper surface of the joint insert 4 is provided with a step-shaped outer profile cross-sectional structure, the opening at the upper end of the inner protective layer 1 is compounded with the step surface of the joint insert 4, a pressing plate 5 is pressed on the upper end surfaces of the inner protective layer 1 and the joint insert 4, a counter bore is provided on the pressing plate 5, a counter bore is provided in the counter bore for screwing and fixing the pressing plate 5 and the joint insert 4, the pressing plate 5 is pressed and fixed on the upper end surfaces of the inner protective layer 1 and the joint insert 4 by the counter bore screw, and a sealing ring 10 is provided at the crimping position of the inner protective layer 1 and the joint insert 4, therefore, the inner protective layer 1 and the joint insert 4 are pressed and sealed by pressing the sealing ring by the pressing plate, the joint insert 4 is provided with a central threaded hole, the joint valve body 6 is screwed in the central threaded hole of the joint insert 4, the joint valve body 6 is provided with a step surface, it is of course necessary to embed a second sealing ring 11 between the upper end surface of the joint insert 4 and the step surface of the joint valve body 6, the lower end of the joint valve body 6 is connected with a siphon tube 7 extending into the housing, the inner cavity of the housing 3 is directly used as a filling cavity 8 for filling fire extinguishing agent, the fire extinguishing agent 7 in this embodiment is foam aqueous solution (sodium bicarbonate aqueous solution, aluminum sulfate aqueous solution, etc.) to form a foam fire extinguisher, the bottom of the housing 3 is set to be bowl-shaped structure, the bottom of the housing 3 is provided with a base 9, in this embodiment, the base 9 has a housing cavity in which the bottom of the housing is embedded, and the bottom bowl-shaped structural part of the housing 3 is directly embedded in the housing cavity.

Example two:

as shown in fig. 3, the fire extinguishing agent filled in the filling cavity 8 of the housing 3 of the high-strength compound fire extinguisher of the embodiment is dry powder, thereby forming a dry powder fire extinguisher, which is different from the first embodiment in that the joint insert 4 is a metal insert, the joint insert 4 has a central upper boss, the central upper boss has an external thread, and the pressing plate 5 is provided with an internal thread matched with the external thread, so that the pressing plate 5 can be directly screwed on the central upper boss of the joint insert 4 and pressed on the upper surface of the joint insert 4 to compress and fix the inner protective layer 1, and the structure can also realize a reliable connection structure without a fastener.

Example three:

as shown in fig. 4, the fire extinguisher of high strength composite type according to the present embodiment is a fire extinguisher formed by filling a filling chamber 8 of a housing 3 with carbon dioxide or heptafluoropropane, preferably with heptafluoropropane, and is different from the first embodiment in that a joint valve body 6 is a valve body conventionally used for a heptafluoropropane gas fire extinguisher, and a siphon tube, which is not inserted into the housing at a lower end thereof, is provided. Joint inserts 4 adopts copper or stainless steel to make, connects inserts 4 to have central screw hole, and the middle part of clamp plate 5 is provided with boss under the center, and central boss is provided with the external screw thread with central screw hole complex outward, and clamp plate 5 directly revolves through central boss down and connects on inserts 4 and press on connecting inserts 4 upper surface and compress tightly internal protection layer 1, and the boss has the screw hole under the center, connects valve body 6 and revolves in the screw hole of boss under the center of clamp plate 5.

Claims

1. The utility model provides a compound fire extinguisher of high strength which characterized in that: the anti-theft device comprises a shell (3) consisting of an inner protective layer (1) formed by blow molding of a high polymer material and an outer pressure bearing layer (2) which is compounded outside the inner protective layer and made of a glass fiber reinforced plastic material, wherein a joint insert (4) is arranged in the shell (3), an opening at the upper end of the inner protective layer (1) is compounded with the joint insert (4), a pressing plate (5) is pressed on the upper end surfaces of the inner protective layer (1) and the joint insert (4), and the outer pressure bearing layer (2) is wound and wrapped on the peripheries of the pressing plate (5) and the inner protective layer (1); the top of the shell (3) is provided with a joint valve body (6) communicated with the inner cavity of the shell, and the inner cavity of the shell (3) is directly used as a filling cavity (8) filled with fire extinguishing agent.

2. The fire extinguisher of claim 1, wherein: the bottom of the shell (3) is provided with a base (9).

3. The fire extinguisher of claim 1 or 2, wherein: the fire extinguishing agent is foam water solution, dry powder, carbon dioxide or heptafluoropropane.

4. A high-strength composite fire extinguisher according to claim 3, wherein: a sealing ring (10) is embedded among the inner protective layer (1), the joint insert (4) and the pressing plate (5), and a second sealing ring (11) is also embedded between the joint insert (4) and the joint valve body (6).

5. The fire extinguisher of claim 1, 2 or 4, wherein: the connector insert (4) is provided with a central threaded hole, the upper surface of the connector insert (4) is of a step-shaped cross section structure, the inner protective layer (1) is pressed on the step surface of the connector insert (4), and the connector valve body (6) is screwed in the central threaded hole of the connector insert (4).

6. The fire extinguisher of claim 5, wherein: the pressure plate (5) is provided with a counter bore, and a fastener (12) used for pressing the pressure plate on the end faces of the inner protective layer (1) and the joint insert (4) is installed in the counter bore.

7. The fire extinguisher of claim 1, 2 or 4, wherein: the connector insert (4) is provided with a central upper boss, an external thread is arranged on the central upper boss, an internal thread matched with the external thread is arranged on the pressing plate (5), and the pressing plate (5) is screwed on the central upper boss of the connector insert (4) and is pressed on the end faces of the inner protective layer (1) and the connector insert (4).

8. The fire extinguisher of claim 1, 2 or 4, wherein: connect inserts (4) to have central screw hole, the middle part of clamp plate (5) is provided with boss under the center, boss is provided with the external screw thread with central screw hole complex down in the center outward, clamp plate (5) directly connect soon on connecting inserts (4) and press on connecting inserts (4) upper surface to compress tightly inoxidizing coating (1) down through boss under the center, the boss has the screw hole under the center, connect valve body (6) to connect soon in the screw hole of boss under the center.

9. The fire extinguisher of claim 2, wherein: the bottom of the shell (3) is arranged to be a bowl-shaped structure, the base (9) is provided with a placement cavity for embedding the bottom of the shell, and the bowl-shaped structure part at the bottom of the shell (3) is directly embedded into the placement cavity of the shell.