Multi-functional fire-fighting lance

Abstract

The utility model provides a kind of multifunctional fire-fighting lance, it is related to fire-fighting equipment technical field, including water gun valve body, the inside of water gun valve body is provided with ball valve spool, two ball valve rotary blocks are symmetrically fixedly connected with the two sides of ball valve spool, the end of two ball valve rotary blocks is fixedly connected with switch handle after being projected to outside through water gun valve body;The end of water gun valve body is threadedly sleeved with water outlet fixed pipe, the other end of water gun valve body is threadedly sleeved with tail fixed connection pipe;Screw sleeve is inserted into the spiral sliding groove that the outer wall of flow regulating pipe is opened, because the platform step that equidistance is arranged in spiral sliding groove and transition by inclined guide surface between adjacent platform step, the movement of screw sleeve will drive flow regulating pipe to slide laterally inside water outlet fixed pipe, the sliding of flow regulating pipe changes the distance between it and water baffle, and then change the water flow passage cross-sectional area between flow regulating pipe and water baffle, realize the multistage regulation of water flow.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a multi-functional fire hose. Background Technology

[0002] In the field of fire rescue, fire hoses are core firefighting equipment, and their performance directly affects firefighting efficiency and rescue safety.

[0003] Utility model patent CN214050285U discloses a novel direct current spray water gun in the field of fire-fighting equipment technology. It includes a detachable nozzle head with a direct current outlet threaded to the front and a detachable nozzle barrel threaded to the rear. The detachable nozzle head has a ball valve chamber and a spray water storage tank at its front end. A T-shaped ball valve is installed inside the ball valve chamber, with its center and rear also penetrating through the center. Openings corresponding to the T-shaped ball valve's penetration are located at the front, rear, and top of the ball valve chamber. A spray water inlet is located in the spray water storage tank corresponding to the opening above the ball valve chamber. Several spray outlets are located on the outer surface of the detachable nozzle head corresponding to the spray water storage tank. A rotating shaft is fixedly installed on the left side inside the T-shaped ball valve, with its right end penetrating to the outside of the detachable nozzle head. A master control switch is fixedly installed at the top of the right end of the rotating shaft. By using only one master control switch, the entire gun can be controlled to output direct current, spray, or both direct current and spray simultaneously, or to be shut off.

[0004] However, the existing technical solutions mentioned above have insufficient functional adaptability of fire hoses: they only support switching between spray and direct current spray modes, and can only deal with some simple fire scenarios. The need for flexible adjustment of water output when the fire situation changes dynamically cannot be achieved at present, which has great limitations in actual fire fighting operations. Based on this, a multi-functional fire hose is proposed to solve the above technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-functional fire hose.

[0006] This utility model provides a multi-functional fire hose, including a hose valve body. A ball valve core is provided inside the hose valve body. Two ball valve rotating blocks are symmetrically and fixedly connected to both sides of the ball valve core. One end of each ball valve rotating block extends through the hose valve body to the outside and is fixedly connected to a switch handle. One end of the water gun valve body is threaded with a water outlet fixing pipe, and the other end of the water gun valve body is threaded with a tail fixing connection pipe. A flow regulating pipe is slidably connected to the inner side of the water outlet fixed pipe. A flow guide cone is provided on the inner side of the flow regulating pipe. One end of the flow guide cone is fixedly connected to the inner wall of one end of the water gun valve body. A water baffle ring is fixedly connected to the other end of the flow guide cone by screws. A flow regulating ring is rotatably sleeved on the outer side of the water outlet fixed pipe. A screw sleeve is fixedly installed on the inner side wall of the flow regulating ring. An arc-shaped groove is opened through the side wall of the water outlet fixed pipe. A spiral sliding groove is opened on the outer wall of the flow regulating pipe. Multiple platform steps are equally spaced in the spiral sliding groove. An inclined guide surface is provided between two adjacent platform steps for transition. The screw sleeve extends into the spiral sliding groove after passing through the arc-shaped groove. Both the spiral sliding groove and the arc-shaped groove are adapted to the screw sleeve. An adjusting pipe is sleeved on the outside of the fixed water outlet pipe, and a rotating sleeve is fixedly sleeved on the outside of the adjusting pipe.

[0007] Preferably, the front end of the regulating tube is fixedly connected to a water guide toothed ring and a water mist diffuser block by screws.

[0008] Preferably, the front end of the water mist diffusion block is provided with a third inclined surface, the front end of the rotating sleeve is provided with a first inclined surface, and both ends of the water-blocking ring are provided with a second inclined surface.

[0009] Preferably, a tail-end rotating connecting pipe is rotatably sleeved on the outer side of the other end of the tail-end fixed connecting pipe, and a water pipe connector is threaded onto the outer side of one end of the tail-end rotating connecting pipe.

[0010] Preferably, a handle is fixedly connected to the bottom of the water gun valve body.

[0011] Preferably, the two ball valve rotating blocks are coaxially arranged with the center of the ball valve core.

[0012] Preferably, the outer side of the water outlet fixing pipe is provided with a threaded part, and the inner wall of the adjusting pipe is provided with a threaded groove that matches the threaded part. The adjusting pipe is threadedly connected to the threaded part of the water outlet fixing pipe through the threaded groove.

[0013] Preferably, the water mist diffuser block, regulating pipe, flow regulating pipe, guide cone, outlet fixed pipe, flow regulating ring, water gun valve body, ball valve rotating block, tail fixed connecting pipe and tail rotating connecting pipe are all made of aluminum alloy.

[0014] Compared with related technologies, the multifunctional fire hose provided by this utility model has the following beneficial effects: 1. By rotating the flow regulating ring fitted on the outside of the water outlet fixed pipe, the screw sleeve fixed on its inner wall will move along the arc-shaped groove opened through the side wall of the water outlet fixed pipe. At the same time, the screw sleeve extends into the spiral sliding groove opened on the outer wall of the flow regulating pipe. Because the platform steps set at equal intervals in the spiral sliding groove and the transition between adjacent platform steps is through the inclined guide surface, the movement of the screw sleeve will drive the flow regulating pipe to slide laterally inside the water outlet fixed pipe. The sliding of the flow regulating pipe changes the distance between it and the water baffle ring, thereby changing the cross-sectional area of ​​the water flow channel between the flow regulating pipe and the water baffle ring, realizing multi-level adjustment of the water flow rate. This allows the operator to flexibly adjust the water flow rate of the water gun according to the required water flow rate when the fire situation changes dynamically.

[0015] 2. The regulating pipe is threadedly connected to the threaded part on the outside of the water outlet fixed pipe through the inner wall thread groove. The outer fixed sleeve is equipped with a rotating sleeve. Rotating the rotating sleeve drives the regulating pipe to move back and forth along the threaded part of the water outlet fixed pipe, so as to realize the convenient switching between two modes of water flow: direct flow or umbrella-shaped water mist.

[0016] 3. The handle fixedly connected to the bottom of the water gun valve body provides a stable grip for the operator, making it easy for the operator to apply force and control the direction of the water gun. The switch handle drives the ball valve core inside the water gun valve body to rotate through two ball valve rotating blocks that are coaxial with the ball valve core, which can quickly realize the control of water flow interruption.

[0017] 4. The water mist diffuser block, regulating pipe, flow regulating pipe, guide cone, outlet fixed pipe, flow regulating ring, water gun valve body, ball valve rotating block, tail fixed connecting pipe and tail rotating connecting pipe are all made of aluminum alloy. Aluminum alloy has the advantages of high strength, lightweight and corrosion resistance, which can maintain structural stability for a long time, extend the service life of the water gun and reduce maintenance costs. Attached Figure Description

[0018] Figure 1 Overall cross-sectional view of the multifunctional fire hose provided by this utility model; Figure 2 This is a three-dimensional exploded view of the multi-functional fire hose reel in this utility model; Figure 3 This is an enlarged view of point A in this utility model; Figure 4 This is a schematic diagram of the structure of the multifunctional fire hose reel in this utility model; Figure 5 This is an exploded plan view of the multifunctional fire hose reel in this utility model.

[0019] The following are the labeling elements in the diagram: 1. Rotating sleeve; 2. Water-blocking ring; 3. Water-guide toothed ring; 4. Water mist diffuser block; 5. Adjusting pipe; 6. Flow regulating pipe; 7. Guide cone; 8. Water outlet fixed pipe; 9. Flow regulating ring; 10. Water gun valve body; 11. Ball valve rotating block; 12. Switch handle; 13. Ball valve core; 14. Tail fixed connecting pipe; 15. Tail rotating connecting pipe; 16. Water pipe connector; 17. Grip handle; 101. First inclined surface; 201. Second inclined surface; 401. Third inclined surface; 601. Spiral sliding groove; 602. Platform step; 603. Inclined guide surface; 801. Threaded part; 802. Arc groove; 901. Screw sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1 Please refer to the following: Figures 1 to 5 A multi-functional fire hose reel includes a hose reel valve body 10, inside which a ball valve core 13 is installed. Two ball valve rotating blocks 11 are symmetrically fixedly connected to both sides of the ball valve core 13. One end of each ball valve rotating block 11 extends through the hose reel valve body 10 and is fixedly connected to a switch handle 12. One end of the hose reel valve body 10 is threadedly fitted with a water outlet fixing pipe 8, and the other end of the hose reel valve body 10 is threadedly fitted with a tail fixing connecting pipe 14. A flow regulating pipe 6 is slidably connected to the inner side of the water outlet fixing pipe 8. A flow guide cone 7 is provided inside the flow regulating pipe 6. One end of the flow guide cone 7 is fixedly connected to the inner wall of one end of the hose reel valve body 10, and the other end of the flow guide cone 7 is fixedly connected to a water baffle ring 2 by screws. A flow regulating ring 9 is rotatably sleeved on the outer side of the outlet fixed pipe 8. A screw sleeve 901 is fixedly installed on the inner side wall of the flow regulating ring 9. An arc groove 802 is opened through the side wall of the outlet fixed pipe 8. A spiral sliding groove 601 is opened on the outer wall of the flow regulating pipe 6. Multiple platform steps 602 are equally spaced in the spiral sliding groove 601. An inclined guide surface 603 is provided between two adjacent platform steps 602 for transition. The screw sleeve 901 extends into the spiral sliding groove 601 after passing through the arc groove 802. The spiral sliding groove 601 and the arc groove 802 are both corresponding and adapted to the screw sleeve 901. An regulating pipe 5 is sleeved on the outer side of the outlet fixed pipe 8. A rotating sleeve 1 is fixedly sleeved on the outer side of the regulating pipe 5.

[0022] In the above, the water gun valve body 10 serves as the core load-bearing component. The internal ball valve core 13, in conjunction with the coaxial ball valve rotating blocks 11 on both sides and the switch handle 12, enables rapid and stable water flow interruption control. The outlet fixed pipe 8 and the tail fixed connecting pipe 14 are threaded together at both ends of the water gun valve body 10, ensuring a stable connection and facilitating later component disassembly and maintenance. The flow regulating pipe 6 is slidably set within the outlet fixed pipe 8, and together with the guide cone 7 and the baffle ring 2, facilitates flow regulation. The flow regulating ring 9, through the cooperation of the screw sliding sleeve 901, the arc groove 802, and the spiral sliding groove 601, converts the rotational motion into the lateral sliding of the flow regulating pipe 6. The platform step 602 and the inclined guide surface 603 within the spiral sliding groove 601 not only achieve multi-level precise flow regulation but also ensure that the flow regulating pipe 6 remains more stably at the corresponding level after regulation. The combination of the regulating pipe 5 and the rotating sleeve 1 facilitates water flow mode switching operations.

[0023] Furthermore, the front end of the regulating pipe 5 is fixedly connected to a water guide toothed ring 3 and a water mist diffuser block 4 by screws.

[0024] In the above, the water guide tooth ring 3 can divide the water flow into multiple fine water streams, laying the foundation for the subsequent formation of uniform water mist. The water mist diffusion block 4 can further disrupt the direction of the water flow, so that the water flow spreads in an umbrella shape when it is sprayed out. The two work together to significantly improve the coverage and uniformity of the water mist, meeting the needs of cooling and diluting smoke during fire extinguishing.

[0025] Furthermore, the front end of the water mist diffusion block 4 is provided with a third inclined surface 401, the front end of the rotating sleeve 1 is provided with a first inclined surface 101, and both ends of the water-blocking ring 2 are provided with a second inclined surface 201.

[0026] In the above, when switching to water mist mode, the water flow changes direction by passing through the second inclined surface 201 of the water-blocking ring 2, then further diffuses through the third inclined surface 401 of the water mist diffuser block 4, and finally is constrained and guided by the first inclined surface 101 of the rotating sleeve 1.

[0027] Furthermore, the two ball valve rotating blocks 11 are coaxially arranged with the center of the ball valve core 13.

[0028] The design of the two ball valve rotating blocks 11 and the ball valve core 13 being coaxial with the ball valve core 13 ensures that the valve core is subjected to uniform force when the ball valve rotating blocks 11 drive the ball valve core 13 to rotate, avoiding rotation jamming or wear of the sealing surface due to eccentricity, and extending the service life of the valve core. On the other hand, it can ensure that during the rotation of the valve core, its through hole can be precisely aligned with or offset from the water flow channel inside the water gun valve body 10, realizing rapid switching of water flow interruption.

[0029] Example 2 For further details, please refer to [link / reference]. Figures 1 to 5Based on Embodiment 1, a tail-end fixed connecting pipe 14 is rotatably sleeved on the outer side of the other end of a tail-end rotating connecting pipe 15. A water pipe coupling 16 is threaded onto the outer side of one end of the tail-end rotating connecting pipe 15. The water pipe coupling 16 can be a DN65 Chinese-style aluminum coupling. An O-ring is fixedly sleeved on the outer side of the tail-end fixed connecting pipe 14 to improve the sealing performance at the connection with the tail-end rotating connecting pipe 15. An O-ring is provided between the tail-end rotating connecting pipe 15 and the water pipe coupling 16 to improve the sealing performance at the connection. O-rings are nested on the outer sides of both ends of the flow regulating pipe 6 to improve the sealing performance between it and the inner wall of the outlet fixed pipe 8. An O-ring is nested on the outer side of the regulating pipe 5 to improve the sealing performance between it and the rotating sleeve 1. Each O-ring can be a rubber sealing ring.

[0030] As described above, the tail rotating connecting pipe 15 can rotate around the tail fixed connecting pipe 14. When connecting the water pipe, there is no need to adjust the overall position of the water gun. Simply rotate the tail rotating connecting pipe 15 to align the interface. The water pipe coupling 16 adopts a DN65 Chinese-style aluminum coupling, which conforms to the industry standard and can be adapted to most fire hoses, enhancing the equipment's versatility. At the same time, O-rings are set at each connection point to effectively fill the gaps between components and prevent water leakage.

[0031] Furthermore, a handle 17 is fixedly connected to the bottom of the water gun valve body 10.

[0032] In the above, the grip handle 17 fixed at the bottom of the water gun valve body 10 provides a stable grip support point for the operator.

[0033] Furthermore, a threaded portion 801 is provided on the outer side of the water outlet fixing pipe 8, and a threaded groove adapted to the threaded portion 801 is provided on the inner wall of the regulating pipe 5. The regulating pipe 5 is threadedly connected to the threaded portion 801 of the water outlet fixing pipe 8 through the threaded groove.

[0034] In the above, the threaded part 801 on the outside of the water outlet fixing pipe 8 and the threaded groove on the inner wall of the regulating pipe 5 cooperate to realize the detachable connection and precise position adjustment of the two.

[0035] Furthermore, the water mist diffuser block 4, regulating pipe 5, flow regulating pipe 6, guide cone 7, outlet fixed pipe 8, flow regulating ring 9, water gun valve body 10, ball valve rotating block 11, tail fixed connecting pipe 14 and tail rotating connecting pipe 15 are all made of aluminum alloy and are precision machined from 6061-T6 aluminum alloy.

[0036] The aforementioned core components are made of 6061-T6 aluminum alloy, which has high strength and can withstand the high-pressure impact of water flow and external collisions during firefighting, preventing component deformation or damage and ensuring the long-term structural stability of the water gun. Its lightweight characteristics reduce the overall weight of the water gun, lighten the operator's grip burden, and facilitate long-term operation or mobile firefighting. At the same time, this material has good corrosion resistance, which can resist the erosion of impurities and corrosive substances in firefighting water, as well as moisture and dust in the external environment, reducing the rust or corrosion of components and extending the service life of the water gun.

[0037] The working principle of the multi-functional fire hose provided by this utility model is as follows: In use, connect the water pipe connector 16 to the fire hose, operate the switch handle 12, which will drive the two ball valve rotating blocks 11 fixedly connected to it to rotate synchronously. Since the two ball valve rotating blocks 11 and the ball valve core 13 are coaxially set, the ball valve rotating blocks 11 drive the ball valve core 13 in the water gun valve body 10 to rotate. When the ball valve core 13 rotates until its through hole is aligned with the water flow channel inside the water gun valve body 10, the water flow enters the ball valve core 13 through the water pipe connector 16, the tail rotating connecting pipe 15, and the tail fixed connecting pipe 14 in sequence, and enters the flow regulating pipe 6 through the ball valve core 13. Finally, it is sprayed out through the regulating pipe 5, the water mist diffuser block 4, and the front end of the rotating sleeve 1. When the ball valve core 13 rotates until its through hole is misaligned with the water flow channel, the water flow is blocked, realizing the on / off control of the water gun.

[0038] The operator manually rotates the flow regulating ring 9, which is fitted onto the outside of the outlet fixed pipe 8. The screw sleeve 901 on the inner wall of the flow regulating ring 9 moves within the arc-shaped groove 802 on the side wall of the outlet fixed pipe 8. Simultaneously, the screw sleeve 901 extends into the spiral sliding groove 601 on the outer wall of the flow regulating pipe 6. Because the spiral sliding groove 601 has a platform step 602, and adjacent platform steps 602 are transitioned by an inclined guide surface 603, the screw sleeve 901 enters different platform steps 602, corresponding to different flow levels, and the inclined guide surface... The transition at 603 allows the screw sleeve 901 to smoothly enter different platform steps 602 for switching. The movement of the screw sleeve 901 will cause the flow regulating pipe 6 to slide laterally inside the outlet fixed pipe 8. The sliding of the flow regulating pipe 6 changes the distance between it and the water baffle ring 2, thereby changing the cross-sectional area of ​​the water flow channel between it and the water baffle ring 2, and thus regulating the water flow rate. When the flow regulating pipe 6 is close to the water baffle ring 2, the cross-sectional area of ​​the water flow channel decreases and the water flow rate decreases. When the flow regulating pipe 6 is far away from the water baffle ring 2, the water flow rate increases.

[0039] The regulating pipe 5 is threadedly connected to the threaded part 801 on the outside of the water outlet fixed pipe 8 through a threaded groove on its inner wall, and a rotating sleeve 1 is fixedly sleeved on its outer side. When the operator manually rotates the rotating sleeve 1, the regulating pipe 5 can move back and forth along the threaded part 801 of the water outlet fixed pipe 8.

[0040] When the rotating sleeve 1 drives the regulating pipe 5 to rotate clockwise, the relative position of the water-blocking ring 2 and the regulating pipe 5 changes. When the regulating pipe 5 moves to the left (e.g., Figure 1 As shown), the water-blocking ring 2 gradually enters the inner side of the regulating pipe 5. Since the inner side of the regulating pipe 5 is a straight pipe, when the water-blocking ring 2 is completely inside the regulating pipe 5, the sprayed water is in a straight line state. When the rotating sleeve 1 drives the regulating pipe 5 to reverse, the water-blocking ring 2 moves out of the regulating pipe 5. Then, the sprayed water flows through the second inclined part 201 of the water-blocking ring 2, the third inclined part 401 of the water mist diffuser block 4, and the first inclined part 101 of the rotating sleeve 1, and sprays out in an umbrella shape. When the water flows out after being dispersed by the water guide tooth ring 3 and the water mist diffuser block 4, it forms a water mist mode, thereby realizing the switching between the straight line and water mist modes.

[0041] The other end of the fixed connecting pipe 14 at the tail end is rotatably fitted with a rotating connecting pipe 15 at the tail end. A water pipe connector 16 is threaded onto the outer side of one end of the rotating connecting pipe 15. The water gun can be connected to an external water supply line through the water pipe connector 16. The rotating design of the rotating connecting pipe 15 at the tail end makes it easy to adjust the angle during connection, which is convenient for installation and operation. The grip handle 17 fixedly connected to the bottom of the water gun valve body 10 provides a stable grip for the operator, making it easy to hold the water gun during use and improving the stability and convenience of operation.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-functional fire hose, characterized in that, Includes a water gun valve body (10), inside which a ball valve core (13) is provided, and two ball valve rotating blocks (11) are symmetrically fixedly connected on both sides of the ball valve core (13). One end of the two ball valve rotating blocks (11) passes through the water gun valve body (10) and extends to the outside, and together they are fixedly connected to a switch handle (12). One end of the water gun valve body (10) is threaded with a water outlet fixing pipe (8), and the other end of the water gun valve body (10) is threaded with a tail fixing connecting pipe (14). The inner side of the water outlet fixed pipe (8) is slidably connected to a flow regulating pipe (6), and a flow guide cone (7) is provided on the inner side of the flow regulating pipe (6). One end of the flow guide cone (7) is fixedly connected to the inner wall of one end of the water gun valve body (10), and the other end of the flow guide cone (7) is fixedly connected to a water baffle ring (2) by screws. A flow regulating ring (9) is rotatably sleeved on the outer side of the water outlet fixed pipe (8). A screw sleeve (901) is fixedly installed on the inner side wall of the flow regulating ring (9). An arc groove (802) is opened through the side wall of the water outlet fixed pipe (8). A spiral sliding groove (601) is opened on the outer wall of the flow regulating pipe (6). Multiple platform steps (602) are arranged at equal intervals in the spiral sliding groove (601). An inclined guide surface (603) is provided between two adjacent platform steps (602) for transition. The screw sleeve (901) extends into the spiral sliding groove (601) after passing through the arc groove (802). The spiral sliding groove (601) and the arc groove (802) are both adapted to the screw sleeve (901). An adjusting pipe (5) is sleeved on the outside of the water outlet fixed pipe (8), and a rotating sleeve (1) is fixedly sleeved on the outside of the adjusting pipe (5).

2. A multi-functional fire hose reel according to claim 1, characterized in that, The front end of the regulating pipe (5) is fixedly connected to a water guide toothed ring (3) and a water mist diffuser block (4) by screws.

3. A multi-functional fire hose reel according to claim 2, characterized in that, The front end of the water mist diffusion block (4) is provided with a third inclined surface (401), the front end of the rotating sleeve (1) is provided with a first inclined surface (101), and both ends of the water-blocking ring (2) are provided with a second inclined surface (201).

4. A multi-functional fire hose reel according to claim 3, characterized in that, The other end of the fixed connecting pipe (14) is rotatably fitted with a rotating connecting pipe (15), and a water pipe connector (16) is threaded onto the outer side of one end of the rotating connecting pipe (15).

5. A multi-functional fire hose reel according to claim 1, characterized in that, A handle (17) is fixedly connected to the bottom of the water gun valve body (10).

6. A multi-functional fire hose reel according to claim 1, characterized in that, The two ball valve rotating blocks (11) and the ball valve core (13) are coaxially arranged.

7. A multi-functional fire hose reel according to claim 1, characterized in that, The outer side of the water outlet fixed pipe (8) is provided with a threaded part (801), and the inner wall of the regulating pipe (5) is provided with a threaded groove that matches the threaded part (801). The regulating pipe (5) is threadedly connected to the threaded part (801) of the water outlet fixed pipe (8) through the threaded groove.

8. A multi-functional fire hose reel according to claim 4, characterized in that, The water mist diffuser block (4), regulating pipe (5), flow regulating pipe (6), guide cone (7), outlet fixed pipe (8), flow regulating ring (9), water gun valve body (10), ball valve rotating block (11), tail fixed connecting pipe (14) and tail rotating connecting pipe (15) are all made of aluminum alloy.

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