An assembled extension device for high-altitude fire extinguishing

Abstract

The utility model discloses a kind of assembly type extension devices for high-altitude fire extinguishing belong to high-altitude fire extinguishing technical field, including water delivery pipe and fixedly installed connector in its end surface, water delivery pipe is docked installation with connecting pipe in the end away from connector, and connecting pipe port is fixedly installed with spray head;Quickly assembled connecting assembly is arranged between water delivery pipe and connecting pipe, and multiple-stage sealing mechanism for preventing liquid leakage is arranged in connecting assembly;Water delivery pipe and connecting pipe are assembled by screw thread structure, so that the sleeve pipe of connecting pipe end surface is sleeved on the outside of water delivery pipe, and main sealing ring and sealing ring on sleeve pipe and water delivery pipe are extruded to occur deformation in assembly process, mutual extrusion between the two automatically supplements liquid leakage gap, avoid the problem that traditional O type sealing ring sealing appears concentricity deviation and aging leakage, two groups of sealing rings form multiple-stage sealing structure, can effectively avoid the situation that liquid leakage occurs after assembly type extension device is assembled.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude fire extinguishing technology, specifically to a prefabricated extension device for high-altitude fire extinguishing. Background Technology

[0002] For fires occurring at heights such as high-rise buildings and elevated facilities, the situation at the fire scene is complex, with factors such as strong winds and rapid fire spread, which brings great difficulties to firefighting work. Using extended poles to deliver extinguishing liquids is an important method of high-altitude firefighting. Water or other extinguishing agents in the water tank are delivered to the nozzles at the top through extended pipes for water spraying to extinguish the fire.

[0003] For example, patent CN112933472A discloses a portable high-altitude fire extinguishing device, including a fire extinguishing tank body. A flexible hose is installed at the upper end of the fire extinguishing tank body. A fixing pipe is fixedly installed at the end of the flexible hose away from the outlet. A connector is fixedly installed at the end of the fixing pipe. An external threaded connector is fixedly installed on the outer side of the connector at the end away from the fixing pipe. A fire extinguishing nozzle is detachably installed on the connector via the external threaded connector. Multiple connecting rods are detachably installed between the fire extinguishing nozzle and the connector. Through the design of multiple connecting rods, the connecting rods are spliced ​​between the fire extinguishing nozzle and the connector, enabling the fire extinguishing nozzle to extinguish high-altitude electrical wires, meters, and other objects. For fire suppression of electrical equipment such as power lines, transformers, and electrical equipment, the end interface and end groove design allow for quick splicing of two connecting rods. The entire invention is easy to install and disassemble, enabling rapid fire suppression at high altitudes and ensuring a safe and efficient firefighting process. However, some existing high-altitude fire suppression equipment has limited pipe length. While prefabricated pipes can be flexibly assembled and extended according to the fire height, the sealing of the connections is affected by repeated assembly, making liquid leakage at the joints a problem that is difficult to address in emergency fire suppression situations.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing high-altitude fire extinguishing prefabricated extension devices. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated extension device for high-altitude fire extinguishing, in order to solve the problem mentioned in the background art that the use of prefabricated pipes can flexibly assemble extension pipes according to the fire extinguishing height, but as the prefabricated pipes are assembled multiple times, the sealing performance of the connection is affected, and liquid leakage is prone to occur at the connection. In the emergency state of fire extinguishing, it is not convenient to deal with the sealing problem, which affects the high-altitude fire extinguishing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated extension device for high-altitude fire extinguishing, comprising a water supply pipe and a connector fixedly installed on its end face, wherein a connecting pipe is installed at the end of the water supply pipe away from the connector, and a nozzle is fixedly installed at the port of the connecting pipe; a quick-assembly connecting component is provided between the water supply pipe and the connecting pipe, and the connecting component is provided with a multi-stage sealing mechanism to prevent liquid leakage. After the prefabricated water supply pipe and connecting pipe are assembled, the internal multi-stage sealing mechanism is tightly connected, which can effectively prevent liquid leakage at the assembly connection.

[0007] Preferably, the connecting assembly includes a sleeve fixedly installed on the connecting pipe, the sleeve having an internal threaded hole; the outer end of the water pipe near the sleeve has an external thread, and the sleeve is threaded onto the outside of the external thread through the internal threaded hole.

[0008] Preferably, the multi-stage sealing mechanism includes a primary embedded groove formed outside the water supply pipe; a fixing ring is fitted and fixed inside the sleeve, and a main sealing ring is fixedly connected to the inner wall of the fixing ring, with the main sealing ring sealingly fitted outside the primary embedded groove.

[0009] Preferably, the water pipe has an inclined groove that is connected to the primary embedded groove, and the inclined edge of the end face of the main sealing ring is pressed into the inclined groove.

[0010] Preferably, the water pipe is further provided with a secondary inner groove, on which an elastic ring is fixedly sleeved. A secondary sealing ring is fixedly installed on the outside of the elastic ring, and the outer edge of the secondary sealing ring is pressed tightly against the surface of the main sealing ring.

[0011] Preferably, a pressure ring is fixedly installed inside the sleeve, and the pressure ring is fitted outside the secondary inner groove; the elastic ring is inclinedly connected to the outer wall of the water supply pipe, and the pressure ring is pressed tightly against the inclined surface of the elastic ring.

[0012] Preferably, two sets of symmetrically distributed guide posts are fixedly installed in the sleeve, and the guide posts are laterally telescopically connected with locking posts; the water supply pipe is provided with a locking groove that engages with the locking posts; a fixing plate is fixedly sleeved on the outside of the locking posts, and a positioning spring is elastically connected between the fixing plate and the guide posts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the prefabricated extension device for high-altitude fire extinguishing can quickly assemble water supply pipes and connecting pipes through connecting components, extending the length of the fire extinguishing liquid to meet the requirements of high-altitude fire extinguishing.

[0014] The connecting assembly is equipped with a multi-stage sealing mechanism to prevent liquid leakage. When assembling the water supply pipe and connecting pipe through the connecting assembly, the main sealing ring is fitted inside the first-stage embedded groove. The main sealing ring deforms and is pressed tightly in the inclined groove, and the pressure ring is pressed tightly next to the elastic ring. The elastic ring deforms under force and pushes the secondary sealing ring to press tightly next to the main sealing ring. The two seals squeeze each other to automatically fill the leakage gap, avoiding the problems of concentricity deviation and aging leakage that occur with traditional O-ring seals. The two sets of sealing rings form a multi-stage sealing structure, which can effectively prevent liquid leakage after the assembly of the modular extension device.

[0015] During the assembly of the water supply pipe and connecting pipe, the retaining pin in the sleeve gradually comes into contact with the end face of the water supply pipe. When the water supply pipe and the sleeve are fully threaded together, the retaining pin engages with the groove on the end face of the water supply pipe. This improves the connection between the water supply pipe and the connecting pipe, prevents the threaded connection from becoming loose, and further maintains the sealing of the assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the water supply pipe and connecting pipe structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the sleeve structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the main sealing ring structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;

[0021] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 This utility model Figure 5 Enlarged structural diagram at point B;

[0023] Figure 8 This is a schematic diagram of the inclined groove cross-section structure of this utility model;

[0024] Figure 9 This is a schematic diagram of the card column structure of this utility model.

[0025] In the diagram: 1. Water supply pipe; 2. Connector; 3. Connecting pipe; 4. Nozzle; 5. Connecting assembly; 51. Sleeve; 52. Internal threaded hole; 53. External thread; 6. Primary recessed groove; 7. Inclined groove; 8. Fixing ring; 9. Main sealing ring; 10. Secondary recessed groove; 11. Elastic ring; 12. Secondary sealing ring; 13. Pressure ring; 14. Guide post; 15. Locking post; 151. Fixing plate; 152. Positioning spring; 16. Locking groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1-3 The present invention provides the following technical solution: a prefabricated extension device for high-altitude fire extinguishing, comprising a water supply pipe 1 and a connector 2 fixedly installed on its end face, wherein a connecting pipe 3 is connected to the end of the water supply pipe 1 away from the connector 2, and a nozzle 4 is fixedly installed at the port of the connecting pipe 3; a quick-assembly connecting component 5 is provided between the water supply pipe 1 and the connecting pipe 3, and the connecting component 5 is provided with a multi-stage sealing mechanism to prevent liquid leakage.

[0028] Please see Figures 2-4 The connecting component 5 includes a sleeve 51 fixedly installed on the connecting pipe 3, and an internal threaded hole 52 is provided in the sleeve 51; an external thread 53 is provided at one end of the water supply pipe 1 near the sleeve 51, and the sleeve 51 is threadedly fitted onto the outside of the external thread 53 through the internal threaded hole 52.

[0029] The water supply pipe 1 and the connecting pipe 3 are assembled to form a high-altitude fire extinguishing extension device. After assembly, the water in the water supply pipe 1 enters the nozzle 4 through the connecting pipe 3, and finally sprays the fire extinguishing liquid outward through the nozzle 4 to achieve high-altitude fire extinguishing.

[0030] During the assembly of water supply pipe 1 and connecting pipe 3, the sleeve 51 on the end face of connecting pipe 3 is fitted onto the outside of water supply pipe 1. By rotating the sleeve 51, the sleeve 51 is threaded onto the external thread 53 on the outside of water supply pipe 1 through the internal threaded hole 52. Under the constraint of the thread, connecting pipe 3 and water supply pipe 1 can be quickly assembled and disassembled. The operation is convenient and facilitates the assembly of pipelines to assist in fire extinguishing operations in dangerous fire conditions.

[0031] Example 2: Please refer to Figures 3-8Based on Embodiment 1, a multi-stage sealing mechanism is also disclosed, the specific structure of which is as follows: The multi-stage sealing mechanism includes a primary embedded groove 6 formed outside the water supply pipe 1; a fixing ring 8 is fitted and fixed inside the sleeve 51, and a main sealing ring 9 is fixedly connected to the inner wall of the fixing ring 8, the main sealing ring 9 being sealed and fitted outside the primary embedded groove 6. A slanted groove 7 is formed on the water supply pipe 1, which is connected to the primary embedded groove 6, and the slanted edge of the end face of the main sealing ring 9 is pressed tightly inside the slanted groove 7.

[0032] Please see Figures 5-8 The water pipe 1 also has a secondary inner groove 10 on its exterior. An elastic ring 11 is fixedly fitted on the secondary inner groove 10. A secondary sealing ring 12 is fixedly installed on the exterior of the elastic ring 11. The outer arc surface of the secondary sealing ring 12 is pressed tightly against the surface of the main sealing ring 9. A pressure ring 13 is fixedly installed inside the sleeve 51. The pressure ring 13 is fitted on the exterior of the secondary inner groove 10. The elastic ring 11 is inclinedly connected to the outer wall of the water pipe 1, and the pressure ring 13 is pressed tightly against the inclined surface of the elastic ring 11.

[0033] Please see Figure 8 and Figure 9 Two sets of symmetrically distributed guide posts 14 are fixedly installed in the sleeve 51. The guide posts 14 are laterally telescopically connected with locking posts 15. The water pipe 1 is provided with a locking groove 16 that engages with the locking posts 15. The locking posts 15 are fixedly fitted with a fixing plate 151. The fixing plate 151 and the guide posts 14 are elastically connected by a positioning spring 152.

[0034] During the assembly of the water supply pipe 1 and the connecting pipe 3, the sleeve 51 on the end face of the connecting pipe 3 is fitted onto the outside of the water supply pipe 1. The fixing ring 8 and the main sealing ring 9 in the sleeve 51 move closer to the end face of the connecting pipe 3, and the main sealing ring 9 is fitted onto the outside of the first-level embedded groove 6 opened on the outside of the connecting pipe 3. When the sleeve 51 is completely fitted onto the outside of the water supply pipe 1, the main sealing ring 9 moves and is squeezed into the inclined groove 7 on the end face of the connecting pipe 3. The cross section of the main sealing ring 9 near the inclined groove 7 is triangular. Its triangular inclined surface is squeezed by the inclined groove 7, and is pressed and confined inside it in accordance with the shape of the inclined groove 7, so as to maintain the sealing effect of the assembly of the connecting pipe 3 and the sleeve 51.

[0035] During assembly, the pressure ring 13 fixed inside the sleeve 51 is fitted onto the secondary inner groove 10 opened on the outside of the water supply pipe 1. The pressure ring 13 moves closer to the elastic ring 11. The elastic ring 11 is inclinedly connected in the secondary inner groove 10 on the outside of the water supply pipe 1. When the inclined surface of the elastic ring 11 is subjected to the squeezing force of the pressure ring 13 moving closer, the elastic ring 11 expands outward with elastic force. The end away from the pressure ring 13 is fixed with a secondary sealing ring 12. During the outward expansion of the secondary sealing ring 12, the secondary sealing ring 12 is controlled to move closer to the surface of the main sealing ring 9. When the sleeve 51 is completely installed on the outside of the water supply pipe 1, the secondary sealing ring 12 is elastically pressed against the surface of the main sealing ring 9. The two squeeze each other to automatically fill the leakage gap, avoiding the problems of concentricity deviation and aging leakage that occur with traditional O-ring seals.

[0036] The aforementioned main sealing ring 9 and secondary sealing ring 12 form a multi-stage sealing mechanism during the assembly of the sleeve 51 and the water supply pipe 1. By utilizing the relative displacement during the assembly of the sleeve 51 and the water supply pipe 1, the secondary sealing ring 12 and the main sealing ring 9 are squeezed and deformed to maintain a good sealing state. Even after multiple assembly of the water supply pipe 1 and the connecting pipe 3, effective sealing can still be maintained.

[0037] During the installation of sleeve 51 and water pipe 1, the retaining post 15 in sleeve 51 moves closer to the end face of water pipe 1. The end of retaining post 15 is arc-shaped. When the arc-shaped end of retaining post 15 contacts the end face of water pipe 1, pressure is generated between them. At this time, retaining post 15 moves into the guide post 14, completely fitting sleeve 51 onto the outside of water pipe 1. At this time, the position of retaining post 15 corresponds to the position of retaining groove 16 on the end face of water pipe 1. Under the elastic thrust of positioning spring 152 inside guide post 14, retaining post 15 moves outward. The outwardly moved retaining post 15 engages with the retaining groove 16 on the end face of water pipe 1. Through the engagement of retaining post 15 and retaining groove 16, the connection between water pipe 1 and sleeve 51 is improved. The extension device provides a certain degree of resistance to the threaded connection between the water supply pipe 1 and the sleeve 51. As the extension device is repeatedly used in high-altitude fire extinguishing, the tightness of the threaded connection gradually decreases. The locking post 15 and the locking groove 16, which engage with the end faces of the water supply pipe 1 and the sleeve 51, can increase the resistance to the rotation of the threads. This ensures that the threaded structure of the sleeve 51 on the outside of the water supply pipe 1 will not loosen under non-manual operation, maintaining the stability of the assembly and use between the water supply pipe 1 and the connecting pipe 3. This maintains the tightness of the internal multi-stage sealing mechanism, further improving the sealing effect after the extension device is assembled and used, and preventing liquid leakage at the pipe connection during high-altitude fire extinguishing operations.

[0038] In the description of this utility model, 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 utility model according to the specific circumstances.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated extension device for high-altitude fire extinguishing, comprising a water supply pipe (1) and a connector (2) fixedly installed on its end face, characterized in that: The end of the water supply pipe (1) away from the connector (2) is connected to a connecting pipe (3), and a nozzle (4) is fixedly installed at the port of the connecting pipe (3). A quick-assembly connection assembly (5) is provided between the water supply pipe (1) and the connecting pipe (3), and the connection assembly (5) is provided with a multi-stage sealing mechanism to prevent liquid leakage.

2. The prefabricated extension device for high-altitude fire extinguishing according to claim 1, characterized in that: The connecting assembly (5) includes a sleeve (51) fixedly installed on the connecting pipe (3), and the sleeve (51) has an internal threaded hole (52). The water pipe (1) has an external thread (53) at one end near the sleeve (51), and the sleeve (51) is threaded onto the outside of the external thread (53) through the internal thread hole (52).

3. The prefabricated extension device for high-altitude fire extinguishing according to claim 2, characterized in that: The multi-stage sealing mechanism includes a first-stage inner groove (6) opened on the outside of the water supply pipe (1); The sleeve (51) is fitted with a fixing ring (8), and the inner wall of the fixing ring (8) is fixedly connected with a main sealing ring (9). The main sealing ring (9) is sealed and fitted outside the first-level inner groove (6).

4. A prefabricated extension device for high-altitude fire extinguishing according to claim 3, characterized in that: The water pipe (1) has a sloping groove (7) that is connected to the first-level embedded groove (6), and the sloping edge of the end face of the main sealing ring (9) is pressed into the sloping groove (7).

5. A prefabricated extension device for high-altitude fire extinguishing according to claim 3, characterized in that: The water pipe (1) is also provided with a secondary inner groove (10) on the outside. An elastic ring (11) is fixedly sleeved on the secondary inner groove (10). A secondary sealing ring (12) is fixedly installed on the outside of the elastic ring (11). The outer edge of the secondary sealing ring (12) is pressed tightly against the surface of the main sealing ring (9).

6. A prefabricated extension device for high-altitude fire extinguishing according to claim 5, characterized in that: A pressure ring (13) is fixedly installed inside the sleeve (51), and the pressure ring (13) is fitted onto the outside of the secondary inner groove (10); The elastic ring (11) is inclinedly connected to the outer wall of the water pipe (1), and the pressure ring (13) is pressed tightly against the inclined surface of the elastic ring (11).

7. A prefabricated extension device for high-altitude fire extinguishing according to claim 3, characterized in that: Two sets of symmetrically distributed guide posts (14) are fixedly installed in the sleeve (51), and the guide posts (14) are laterally telescopically connected with locking posts (15). The water pipe (1) is provided with a slot (16) that engages with the locking post (15); The outer fixing sleeve of the locking post (15) is provided with a fixing plate (151), and a positioning spring (152) is elastically connected between the fixing plate (151) and the guide post (14).

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