Multi-caliber adjustable fire-fighting direct current water gun

Abstract

The utility model provides adjustable fire-fighting direct current water gun of many caliber belongs to fire-fighting jet fluid equipment technical field, including spray gun head, gun body and water gun interface, spray gun head include pin shaft, washer, spray orifice cap, first O type ring, second O type ring, sliding sleeve, spray head seat, compression spring and steel ball, spray orifice cap and washer are connected with spray head seat screw thread through pin shaft, spray orifice cap rotates around pin shaft, the surface of spray orifice cap is equipped with the hole hole of cooperation pin shaft use, the surface of spray orifice cap is equipped with a plurality of spray orifices, and spray orifice center point and spray orifice cap center interval are equal, and a plurality of spray orifice inner diameters are different. The utility model water gun inner runner is linear design, and the resistance is small, and the flow rate is fast, and the pressure resistance is high, and the spray caliber is switched through rotating spray orifice cap, and the structure is simple, and the sealing is good, and the operation is convenient, and the maintenance is convenient, and can according to the on -the -spot demand in time fast switching the spray caliber of many caliber fire-fighting direct current water gun.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire-fighting jet fluid equipment, specifically relating to a multi-caliber adjustable fire-fighting straight-stream water gun. Background Technology

[0002] In the firefighting field, straight-stream fire hoses are widely used as important fire extinguishing tools. With the diversification of water pump specifications and the variation in water flow rate with increasing head, the performance requirements for straight-stream fire hoses are also increasing. Currently, most straight-stream fire hoses used in urban firefighting and forest fire suppression systems have a single nozzle diameter. This means that the nozzle diameter cannot be selected to handle different flow rates, requiring the hose to be replaced with one corresponding to the flow rate. This limits their use in fire situations, resulting in poor convenience and inadequate fire extinguishing efficiency.

[0003] The defects of existing direct current water guns:

[0004] Single nozzle diameter: Straight stream water guns cannot meet the needs of water pumps of various flow rates at fire scenes or adjust the nozzle diameter to achieve the best fire extinguishing spray state due to changes in the head of the pumps used.

[0005] No filter screen protection at the water inlet: Foreign objects may enter or fall into the water inlet pipe and block the gun body or nozzle, causing the water gun to malfunction and become unusable;

[0006] Inconvenient to use: Existing straight-stream water guns require adjustment of the spray nozzle diameter, which can only be done by disassembling and replacing the nozzle or water gun. This is extremely inconvenient to use, increases the workload of firefighters, and affects fire extinguishing efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a multi-caliber adjustable direct current fire hose, which aims to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A multi-caliber adjustable fire hose includes a nozzle head, a body, and a nozzle interface. The nozzle head includes a pin, a washer, a nozzle cap, a first O-ring, a second O-ring, a sliding sleeve, a nozzle seat, a compression spring, and a steel ball. The nozzle cap and washer are threadedly connected to the nozzle seat via the pin. The nozzle cap rotates around the pin. The surface of the nozzle cap has holes for use with the pin. The surface of the nozzle cap has several nozzles, and the center point of each nozzle is equidistant from the center of the nozzle cap. The nozzles have different inner diameters. The inner side of the nozzle cap has multiple equally spaced grooves.

[0010] The sliding sleeve is equipped with a first O-ring and a second O-ring. The first O-ring and the second O-ring respectively contact the nozzle cap and the inner surface of the nozzle seat to form a seal. The sliding sleeve is completely inserted into the inside of the nozzle seat. The side of the nozzle seat is provided with mounting holes for mounting compression springs and steel balls. The nozzle seat is threaded to the left connector. A third O-ring is installed on the nozzle seat. The third O-ring contacts the inner side of the left connector to achieve a seal at the connection.

[0011] As a preferred embodiment of this utility model, the gun body includes a left connector, a fourth O-ring, a shoulder strap swivel, a barrel, a right connector, a filter screen, and a retaining ring. The left connector is threaded to the other end of the barrel. The shoulder strap swivel is sleeved on the outer surface of the left connector. The fourth O-ring is installed on the left connector to seal the connection between the left connector and the inner wall of one end of the barrel.

[0012] The right connector is threaded to the other end of the gun barrel. The shoulder strap loop is fitted onto the outer surface of the right connector. A fourth O-ring is installed on the right connector to seal the connection between the right connector and the inner wall of one end of the gun barrel. A filter screen and a retaining ring are installed inside the hole of the right connector. The right connector is threaded to the quick connector of the water gun interface.

[0013] As a preferred embodiment of this utility model, the water gun interface includes a quick connector, a sealing ring, and a flat gasket sealing ring. A sealing ring and a flat gasket sealing ring are installed at the step of the inner hole of the quick connector. The flat gasket sealing ring on the quick connector contacts the end face of the right connector to achieve a seal at the connection. The sealing ring on the quick connector is used to contact other quick connectors to achieve a seal at the connection.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the water gun has a straight flow channel design, which has low resistance, fast flow rate, and high pressure resistance. The spray nozzle diameter can be switched by rotating the nozzle cap. The structure is simple, the sealing is good, the operation and use are convenient, and the maintenance is convenient. It is a multi-diameter fire-fighting straight-line water gun that can switch the spray nozzle diameter in a timely and quick manner according to the needs of the site. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

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

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

[0019] Figure 4 This is a schematic diagram of the sliding sleeve structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the pin structure of this utility model.

[0021] In the diagram: 1. Spray gun head; 11. Pin; 12. Washer; 13. Nozzle cap; 131. Nozzle; 132. Groove; 14. First O-ring; 15. Second O-ring; 16. Sliding sleeve; 17. Nozzle holder; 18. Third O-ring; 19. Compression spring; 110. Steel ball; 2. Gun body; 21. Left connector; 22. Fourth O-ring; 23. Shoulder strap loop; 24. Gun barrel; 25. Right connector; 26. Filter screen; 27. Retaining ring; 3. Water gun interface; 31. Quick connector; 32. Sealing ring; 33. Flat gasket sealing ring. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-5This embodiment of the present invention provides a multi-caliber adjustable fire hose, including a nozzle head 1, a nozzle body 2, and a nozzle interface 3. The nozzle head 1 includes a pin 11, a washer 12, a nozzle cap 13, a first O-ring 14, a second O-ring 15, a sliding sleeve 16, a nozzle seat 17, a compression spring 19, and a steel ball 110. The nozzle cap 13 and the washer 12 are threadedly connected to the nozzle seat 17 through the pin 11. The nozzle cap 13 rotates around the pin 11. The surface of the nozzle cap 13 has holes that cooperate with the pin 11. The surface of the nozzle cap 13 has several nozzles, and the center point of the nozzle is equidistant from the center of the nozzle cap 13. The inner diameters of the nozzles are different. The inner side of the nozzle cap 13 has several equally spaced grooves.

[0027] The sliding sleeve 16 is equipped with a first O-ring 14 and a second O-ring 15. The first O-ring 14 and the second O-ring 15 respectively contact the nozzle cap 13 and the inner surface of the nozzle seat 17 to form a seal. The sliding sleeve 16 is completely inserted into the inside of the nozzle seat 17. The side of the nozzle seat 17 is provided with mounting holes for mounting the compression spring 19 and the steel ball 110. The nozzle seat 17 is threadedly connected to the left connector 21. A third O-ring 18 is installed on the nozzle seat 17. The third O-ring 18 contacts the inner side of the left connector 21 to achieve a seal at the connection.

[0028] The water gun features a straight-line internal flow channel design, resulting in low resistance, high flow velocity, and high pressure resistance. The spray nozzle diameter can be switched by rotating the nozzle cap 13. The design is simple in structure, has good sealing performance, is easy to operate and use, and is convenient to maintain. It is a multi-caliber fire-fighting straight-line water gun that can quickly switch spray nozzle diameters according to on-site needs.

[0029] Specifically, the gun body 2 includes a left connector 21, a fourth O-ring 22, a shoulder strap swivel 23, a barrel 24, a right connector 25, a filter screen 26, and a retaining ring 27. The left connector 21 is threaded to the other end of the barrel 24. The shoulder strap swivel 23 is fitted onto the outer surface of the left connector 21. The fourth O-ring 22 is installed on the left connector 21 to seal the connection between the left connector 21 and the inner wall of one end of the barrel 24.

[0030] The right connector 25 is threaded to the other end of the barrel 24. The shoulder strap loop 23 is fitted on the outer surface of the right connector 25. A fourth O-ring 22 is installed on the right connector 25 to seal the connection between the right connector 25 and the inner wall of one end of the barrel 24. A filter screen 26 and a retaining ring 27 are installed inside the hole of the right connector 25. The right connector 25 is threaded to the quick connector 31 of the water gun interface 3.

[0031] Furthermore, the water gun interface 3 includes a quick connector 31, a sealing ring 32, and a flat gasket sealing ring 33. The sealing ring 32 and the flat gasket sealing ring 33 are installed at the step of the inner hole of the quick connector 31. The flat gasket sealing ring 33 on the quick connector 31 contacts the end face of the right connector 25 to achieve a seal at the connection. The sealing ring 32 on the quick connector 31 is used to contact other quick connectors 31 to achieve a seal at the connection.

[0032] It should be noted that this water gun switches the spray nozzle diameter by rotating the nozzle cap 13, and the groove on the inner side of the nozzle cap 13 contacts the steel ball 110 to position the nozzle.

[0033] In use, water enters through the quick connector 31 of the water gun interface 3, flows through the filter screen 26 and the gun body 2, and is sprayed out from the nozzle cap 13 of the nozzle head 1. The internal flow channel of the water gun is designed in a straight line, with low resistance, fast flow rate and high pressure resistance. The spray nozzle diameter can be switched by rotating the nozzle cap 13. The structure is simple, the sealing is good, the operation is convenient, and the maintenance is convenient. It is a multi-diameter fire direct current water gun that can quickly switch the spray nozzle diameter according to the needs of the site.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-caliber adjustable fire hose reel, comprising a nozzle head (1), a nozzle body (2), and a nozzle interface (3), characterized in that: The spray gun head (1) includes a pin (11), a washer (12), a nozzle cap (13), a first O-ring (14), a second O-ring (15), a sliding sleeve (16), a nozzle seat (17), a compression spring (19), and a steel ball (110). The nozzle cap (13) and the washer (12) are threadedly connected to the nozzle seat (17) through the pin (11). The nozzle cap (13) rotates around the pin (11). The surface of the nozzle cap (13) is provided with holes that cooperate with the pin (11). The surface of the nozzle cap (13) is provided with a plurality of spray holes, and the center point of the spray hole is equidistant from the center of the nozzle cap (13). The inner diameters of the spray holes are different. The inner side of the nozzle cap (13) is provided with a plurality of equally spaced grooves. The sliding sleeve (16) is equipped with a first O-ring (14) and a second O-ring (15). The first O-ring (14) and the second O-ring (15) respectively contact the nozzle cap (13) and the inner surface of the nozzle seat (17) to form a seal. The sliding sleeve (16) is completely inserted into the inside of the nozzle seat (17). The nozzle seat (17) has mounting holes on its side for mounting compression spring (19) and steel ball (110). The nozzle seat (17) is threadedly connected to the left connector (21). The nozzle seat (17) is equipped with a third O-ring (18). The third O-ring (18) contacts the inner side of the left connector (21) to achieve a seal at the connection.

2. The multi-caliber adjustable direct-flow fire hose according to claim 1, characterized in that: The gun body (2) includes a left connector (21), a fourth O-ring (22), a shoulder strap loop (23), a barrel (24), a right connector (25), a filter screen (26), and a retaining ring (27). The left connector (21) is threaded to the other end of the barrel (24). The shoulder strap loop (23) is fitted on the outer surface of the left connector (21). The fourth O-ring (22) is installed on the left connector (21) to seal the connection between the left connector (21) and the inner wall of one end of the barrel (24). The right connector (25) is threaded to the other end of the barrel (24). The shoulder strap loop (23) is fitted on the outer surface of the right connector (25). A fourth O-ring (22) is installed on the right connector (25) to seal the connection between the right connector (25) and the inner wall of one end of the barrel (24). A filter screen (26) and a retaining ring (27) are installed inside the hole of the right connector (25). The right connector (25) is threaded to the quick connector (31) of the water gun interface (3).

3. The multi-caliber adjustable direct-flow fire hose according to claim 2, characterized in that: The water gun interface (3) includes a quick connector (31), a sealing ring (32), and a flat gasket sealing ring (33). The quick connector (31) has a sealing ring (32) and a flat gasket sealing ring (33) installed at the inner hole step. The flat gasket sealing ring (33) on the quick connector (31) contacts the end face of the right connector (25) to achieve a seal at the connection. The sealing ring (32) on the quick connector (31) is used to contact other quick connectors (31) to achieve a seal at the connection.

Images