Connecting structure of cabinet type heptafluoropropane gas fire extinguishing device nozzle

Abstract

The utility model relates to the technical field of fire extinguishing devices, and discloses a connecting structure of a nozzle of a cabinet type heptafluoropropane gas fire extinguishing device, which comprises a cabinet body, a mounting groove is arranged on the outer wall of the cabinet body, a nozzle structure is arranged in an inner cavity of the mounting groove, outer teeth are arranged on the outer wall of the nozzle structure, and a conveying pipe is in threaded connection with the outer wall of the outer teeth. According to the connecting structure of the nozzle of the cabinet type heptafluoropropane gas fire extinguishing device, the nozzle structure on the device is in threaded connection with the tightening ring through the outer teeth through mutual cooperative use of the nozzle structure, the nut, the outer teeth, the tightening ring and the screw on the device, so that the nozzle structure on the device is in threaded connection with the tightening ring through the outer teeth; the clamping ring and the nozzle structure are clamped on the two sides of the inner wall and the outer wall of the cabinet body, and the screw penetrates through the clamping ring, the cabinet body and the inner wall of the nozzle structure to be connected with the nut, so that when the nozzle structure on the device is installed and connected on the cabinet body, the nozzle structure is installed more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing devices, in particular to a connection structure of a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device. Background Technique

[0002] The heptafluoropropane fire extinguishing equipment is a high-efficiency fire extinguishing equipment. Its fire extinguishing agent HFC-ea is a colorless, odorless, low-toxicity, good-insulating, non-secondary-pollution gas, with a zero ozone depletion potential value for the atmospheric ozone layer, and is one of the substitutes for halons 1211 and 1301.

[0003] When the existing device is in use, the heptafluoropropane nozzle is usually used to pass through the cabinet body alone and is connected to the delivery pipe on the gas fire extinguishing device. However, there is a problem of insufficient firm connection in this connection process. Especially when delivering gas, the strong air pressure is also a test for the installation firmness of the nozzle. Moreover, when the device is idle, it is necessary to prevent dust or other gases from affecting the nozzle device. Therefore, a connection structure of a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device that solves the above problems is needed. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a connection structure of a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device, which has the advantages of strong practicability, firm connection, and avoiding dust blockage, and solves the problems raised in the above background technique.

[0005] The utility model provides the following technical solution: A connection structure of a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device, including a cabinet body, an installation groove is opened on the outer wall of the cabinet body, a nozzle structure is arranged in the inner cavity of the installation groove, external teeth are arranged on the outer wall of the nozzle structure, a delivery pipe is threadedly connected to the outer wall of the external teeth, a clamping ring is sleeved on the outer wall of the external teeth, a screw is threadedly connected to the inner wall of the clamping ring, a nut is threadedly connected to the outer wall of the screw, a flow cavity is opened in the inner cavity of the nozzle structure, a nozzle is arranged on the outer wall of the nozzle structure, a through hole is opened on the outer wall of the nozzle, an inner groove is opened on the inner wall of the nozzle, one end of a compression spring is connected to the inner wall of the inner groove, the other end of the compression spring is connected to a blocking piece, and a movable groove is opened on the inner wall of the nozzle.

[0006] As a preferred technical solution of the utility model, thread teeth are arranged on the inner wall of the delivery pipe, and the delivery pipe is meshed with the external teeth through the thread teeth.

[0007] As a preferred technical solution of the utility model, the clamping ring and the external teeth are in a threaded connection relationship, and the thin wall part of the cabinet body is clamped between the clamping ring and the nozzle structure.

[0008] As a preferred technical solution of the present utility model, the screw passes through the inner walls of the clamping ring, the cabinet body and the nozzle structure, and the screw is connected to the nut on the outer side of the device.

[0009] As a preferred technical solution of the present utility model, the blocking piece is arranged in the inner cavity of the flow cavity, and the blocking piece compresses the extension length of the compression spring.

[0010] As a preferred technical solution of the present utility model, the outer wall size of the blocking piece is adapted to the inner wall size of the movable groove, and the blocking piece slides along the inner wall of the movable groove.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] 1. For the connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device, through the mutual cooperation of the nozzle structure, nut and external teeth, clamping ring, and screw on the device, the nozzle structure on the device is threadedly connected to the clamping ring through the external teeth, and the clamping ring and the nozzle structure are clamped on both sides of the inner and outer walls of the cabinet body, and the screw passes through the inner walls of the clamping ring, the cabinet body, and the nozzle structure and is connected to the nut, so that when the nozzle structure on the device is installed and connected to the cabinet type, the nozzle structure is installed more firmly.

[0013] 2. For the connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device, through the mutual cooperation of the delivery pipe, flow cavity, spray head and through hole, blocking piece, and compression spring on the device, when the delivery pipe on the device outputs gas to the spray head through the inner cavity of the flow cavity, the gas is used to push the blocking piece to compress the length of the compression spring, so that the inner cavity of the flow cavity can communicate with the outside through the through hole, and then the fire extinguishing work is completed. And when the device is idle, the blocking piece is used to isolate the aperture of the through hole from communicating with the flow cavity, avoiding the influence of dust or gas on the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 is a left-side sectional structure schematic diagram of the present utility model;

[0016] Figure 3 is the present utility model Figure 2 a magnified schematic diagram of the structure at A in;

[0017] Figure 4 is a schematic diagram of the delivery pipe structure of the present utility model;

[0018] Figure 5 is a sectional structure schematic diagram of the spray head of the present utility model;

[0019] Figure 6 is the present utility modelFigure 5 Schematic enlarged view of the structure at B in the [device].

[0020] In the figure: 1, cabinet body; 2, installation groove; 3, nozzle structure; 4, external teeth; 5, conveying pipe; 6, clamping ring; 7, screw; 8, nut; 9, circulation cavity; 10, nozzle; 11, through hole; 12, inner groove; 13, compression spring; 14, blocking piece; 15, movable groove. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-6 , a connection structure of a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device, including a cabinet body 1, an installation groove 2 is opened on the outer wall of the cabinet body 1, a nozzle structure 3 is arranged in the inner cavity of the installation groove 2, external teeth 4 are arranged on the outer wall of the nozzle structure 3, a conveying pipe 5 is threadedly connected to the outer wall of the external teeth 4, a clamping ring 6 is sleeved on the outer wall of the external teeth 4, a screw 7 is threadedly connected to the inner wall of the clamping ring 6, a nut 8 is threadedly connected to the outer wall of the screw 7, a circulation cavity 9 is opened in the inner cavity of the nozzle structure 3, a nozzle 10 is arranged on the outer wall of the nozzle structure 3, a through hole 11 is opened on the outer wall of the nozzle 10, an inner groove 12 is opened in the inner wall of the nozzle 10, one end of a compression spring 13 is connected to the inner wall of the inner groove 12, the other end of the compression spring 13 is connected to a blocking piece 14, and a movable groove 15 is opened in the inner wall of the nozzle 10. Through the mutual cooperation of the nozzle structure 3, the nut 8, the external teeth 4, the clamping ring 6, and the screw 7 on the device, the nozzle structure 3 on the device is threadedly connected to the clamping ring 6 through the external teeth 4, and the clamping ring 6 and the nozzle structure 3 are clamped on both sides of the inner and outer walls of the cabinet body 1, and the screw 7 passes through the inner walls of the clamping ring 6, the cabinet body 1, and the nozzle structure 3 and is connected to the nut 8, so that when the nozzle structure 3 on the device is installed and connected to the cabinet type, the nozzle structure 3 is installed more firmly.

[0023] In a preferred implementation mode, thread teeth are arranged on the inner wall of the conveying pipe 5, and the conveying pipe 5 is meshed with the external teeth 4 through the thread teeth. By arranging the thread teeth on the inner wall of the conveying pipe 5 on the device, the conveying pipe 5 on the device is meshed with the external teeth 4 through the thread teeth, and the other end of the conveying pipe 5 is fixedly connected to a conveying pipeline, so that the conveying pipe 5 on the device can be connected to the nozzle structure 3 through the external teeth 4.

[0024] In a preferred embodiment, the clamping ring 6 is in a threaded connection with the external teeth 4, and the thin-walled portion of the cabinet body 1 is clamped between the clamping ring 6 and the nozzle structure 3. Due to the threaded connection between the clamping ring 6 and the external teeth 4 on the device, the clamping ring 6 on the device is first threaded with the external teeth 4 one step ahead of the conveying pipe 5, and the portion of the cabinet body 1 is clamped between the clamping ring 6 and the nozzle structure 3, so that the nozzle structure 3 and the nozzle head 10 on the device are firmly installed on the inner wall of the cabinet body 1.

[0025] In a preferred embodiment, the screw 7 passes through the inner walls of the clamping ring 6, the cabinet body 1 and the nozzle structure 3, and the screw 7 is connected to the nut 8 on the outer side of the device. After the screw 7 on the device passes through the inner walls of the clamping ring 6, the cabinet body 1 and the nozzle structure 3 and is connected to the nut 8 on the outer side again, the nozzle structure 3 is fixedly connected on both the inner and outer sides of the device, and thus the connection mode of the nozzle structure 3 is more firm.

[0026] In a preferred embodiment, the blocking piece 14 is arranged in the inner cavity of the flow-through cavity 9, and the blocking piece 14 compresses the extension length of the compression spring 13. Since the blocking piece 14 is arranged in the inner cavity of the flow-through cavity 9 on the device, when the blocking piece 14 on the device is pressed by the heptafluoropropane gas, the blocking piece 14 will automatically move to the right to compress the length of the compression spring 13, so that the compression spring 13 on the device is passively compressed into the inner cavity of the inner groove 12.

[0027] In a preferred embodiment, the outer wall size of the blocking piece 14 is adapted to the inner wall size of the movable groove 15, and the blocking piece 14 slides along the inner wall of the movable groove 15. Since the outer wall size of the blocking piece 14 is adapted to the inner wall size of the movable groove 15 on the device, when the blocking piece 14 on the device is under pressure, the blocking piece 14 will translate to the right along the inner wall of the movable groove 15, so that after the blocking piece 14 on the device moves, the aperture of the through hole 11 is re-exposed, and the heptafluoropropane gas is discharged from the inner cavity of the through hole 11.

[0028] Working principle: First, through the mutual cooperation of the nozzle structure 3, nut 8, external teeth 4, clamping ring 6, and screw 7 on the device, the nozzle structure 3 on the device is threadedly connected to the clamping ring 6 through the external teeth 4, and the clamping ring 6 and the nozzle structure 3 are clamped on both sides of the inner and outer walls of the cabinet body 1. And the screw 7 passes through the inner walls of the clamping ring 6, cabinet body 1, and nozzle structure 3 and is connected to the nut 8, so that when the nozzle structure 3 on the device is installed and connected to the cabinet type, the nozzle structure 3 is installed more firmly. Then, through the mutual cooperation of the delivery pipe 5, flow cavity 9, nozzle 10, through hole 11, blocking piece 14, and compression spring 13 on the device, when the delivery pipe 5 on the device outputs gas to the nozzle 10 through the inner cavity of the flow cavity 9, the gas is used to push the blocking piece 14 to compress the length of the compression spring 13, so that the inner cavity of the flow cavity 9 can communicate with the outside through the through hole 11, and thus the fire extinguishing work is completed. And when the device is idle, the blocking piece 14 is used to isolate the aperture of the through hole 11 from communicating with the flow cavity 9, avoiding the influence of dust or gas on the device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for a nozzle of a cabinet-type heptafluoropropane gas fire extinguishing device, comprising a cabinet body (1), characterized in that: The outer wall of the cabinet (1) is provided with a mounting groove (2), the inner cavity of the mounting groove (2) is provided with a nozzle structure (3), the outer wall of the nozzle structure (3) is provided with external teeth (4), the outer wall of the external teeth (4) is threadedly connected to a delivery pipe (5), the outer wall of the external teeth (4) is sleeved with a tightening ring (6), the inner wall of the tightening ring (6) is threadedly connected to a screw (7), the outer wall of the screw (7) is threadedly connected to a nut (8), the inner cavity of the nozzle structure (3) is provided with a flow cavity (9), the outer wall of the nozzle structure (3) is provided with a spray head (10), the outer wall of the spray head (10) is provided with a through hole (11), the inner wall of the spray head (10) is provided with an inner groove (12), the inner wall of the inner groove (12) is connected to one end of a compression spring (13), the other end of the compression spring (13) is connected to a blocking piece (14), and the inner wall of the spray head (10) is provided with a movable groove (15).

2. The connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The inner wall of the delivery pipe (5) is provided with thread teeth, and the delivery pipe (5) is meshed with the external teeth (4) via the thread teeth.

3. The connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The tightening ring (6) and the external teeth (4) are in a threaded connection relationship, and the thin-walled portion of the cabinet (1) is clamped between the tightening ring (6) and the nozzle structure (3).

4. The connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The screw (7) passes through the inner wall of the tightening ring (6), the cabinet (1) and the nozzle structure (3), and the screw (7) is connected to the nut (8) on the outside of the device.

5. The connection structure of the nozzle of the cabinet type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The blocking piece (14) is arranged in the inner cavity of the flow cavity (9), and the blocking piece (14) compresses the extended length of the compression spring (13).

6. The connection structure of the nozzle of the cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The size of the outer wall of the blocking piece (14) is matched with the size of the inner wall of the movable groove (15), and the blocking piece (14) slides along the inner wall of the movable groove (15).

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