A fire-fighting apparatus injector

Abstract

The application belongs to the technical field of fire-fighting equipment, and particularly relates to a sprayer for fire-fighting equipment; the sprayer comprises a water storage tank, a spray head, a U-shaped support installed on the top of the water storage tank, a rotation control angle adjusting device arranged on the U-shaped support, two water inlet pipes, a transfer pipeline, a water outlet pipe and a water inlet pipe rotationally matched with the transfer pipeline; one end of each of the two water inlet pipes is symmetrically connected to the top of the water storage tank, the other end of each of the two water inlet pipes is oppositely arranged and connected to the U-shaped support, two ends of the transfer pipeline are connected to the opposite ends of the two water inlet pipes, the end of the water inlet pipe away from the water storage tank is connected to the inside of the transfer pipeline, and the transfer pipeline and the water inlet pipe are rotationally matched, and the water outlet pipe is installed on the outer wall of the transfer pipeline and communicates with the water outlet pipe; the sprayer can conveniently adjust the working angle of the spray head during use, the operator does not need to manually hold the sprayer to adjust the angle, the working strength of the operator is reduced, the use effect of the sprayer is improved, and the use limitation of the sprayer is reduced.

Description

Technical Field

[0001] This invention belongs to the field of fire protection equipment technology, specifically a fire sprayer for fire protection equipment. Background Technology

[0002] Firefighting equipment sprayers are key firefighting components or equipment that rely on pressure to spray extinguishing agents such as water, foam, and dry powder into the fire source area in a specific form. The nozzle is the core component, responsible for converting the pressure energy of the extinguishing agent into kinetic energy, enabling it to be sprayed out at high speed. However, existing firefighting equipment sprayers are not convenient to adjust the working angle of the nozzle during use, requiring operators to manually lift it. This increases the workload of operators and reduces the effectiveness of the firefighting equipment sprayers, making their use quite limited. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a sprayer for fire-fighting equipment, which effectively solves the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a fire-fighting equipment sprayer, comprising a water storage tank; a nozzle; a U-shaped bracket installed on the top of the water storage tank; a rotary angle adjustment device provided on the U-shaped bracket for adjusting the working angle of the nozzle; the rotary angle adjustment device comprising water inlet pipes; one end of two water inlet pipes symmetrically connected to the top of the water storage tank; the other ends of the two water inlet pipes are arranged opposite to each other and connected to the U-shaped bracket;

[0005] The transfer pipe is connected at both ends to the opposite ends of two water inlet pipes; the end of the water inlet pipe away from the water storage tank is fitted into the transfer pipe; the transfer pipe and the water inlet pipe are rotatably connected.

[0006] The water outlet pipe is installed on the outer wall of the transfer pipe, and the two are connected; the end of the water outlet pipe away from the transfer pipe is connected to the nozzle.

[0007] The support frame is rotatably connected to the bottom of the water storage tank;

[0008] A relative fixing mechanism is provided on the water outlet pipe; the relative fixing mechanism is used to strengthen the connection between the nozzle and the water outlet pipe; the relative fixing mechanism includes a fixing base connected to the outer wall of the water outlet pipe;

[0009] An air-blocking and sealing assembly is installed on the water outlet pipe; the air-blocking and sealing assembly is used to ensure the sealing of the connection between the nozzle and the water outlet pipe; the air-blocking and sealing assembly includes a braking gear, which is installed on the outer wall of the water outlet pipe.

[0010] Preferably, it includes a rotating ring, which is installed on the outer wall of the transfer pipe, and the two are coaxial;

[0011] The rotating base is connected to the side of the U-shaped bracket near the transfer pipe; the rotating ring is fitted inside the rotating base, and the two rotate in coordination.

[0012] A locking slot is provided through the side wall of the rotating ring; several locking slots are arranged circumferentially at equal intervals with the center of the rotating ring as the reference.

[0013] Preferably, it includes a locking base, which is fixedly connected to the side of the U-shaped bracket near the transfer pipe;

[0014] A locking cylinder is installed on the side of the locking base near the locking slot.

[0015] A locking slider is connected through the locking cylinder, and the locking slider can slide along the locking cylinder;

[0016] A locking spring is sleeved on a locking cylinder; one end of the locking spring is fixedly connected to the locking base, and the other end is fixedly connected to the locking slider.

[0017] A locking rod is fixedly connected to the locking slider; the locking rod passes through the side of the rotating base and is connected to one of the locking slots.

[0018] Preferably, it includes a retaining screw, which is mounted on a retaining base; the retaining base is located at the middle end of the retaining screw; the retaining screw has two threaded areas with opposite directions; the two threaded areas are symmetrically arranged about the retaining base as an axis of symmetry.

[0019] A retaining circular block, threadedly connected to the threaded area;

[0020] A drive source is mounted on a fixed base; the output end of the drive source is connected to a fixed lead screw.

[0021] The retaining cylinder is installed on the retaining base; the retaining cylinder is connected through the retaining block, and the two are in sliding fit.

[0022] Preferably, it includes a bent square rod, one end of which is connected to a retaining circular block, and the other end is connected to a retaining arc plate; the two retaining arc plates are symmetrically arranged about the center of the nozzle as an axis of symmetry.

[0023] A positioning slide column is connected through the fixed arc plate on the side away from the outer wall of the nozzle; the fixed arc plate and the positioning slide column are in sliding fit; a positioning limiting plate is connected to the end of the positioning slide column away from the outer wall of the nozzle; a positioning semi-ring block is connected to the end of the positioning slide column close to the outer wall of the nozzle; the two positioning semi-ring blocks are combined into a whole circle, and the inner diameter of the whole circle is the same as the outer diameter of the connection between the nozzle and the water outlet pipe;

[0024] A positioning spring is sleeved on a positioning slide post; one end of the positioning spring is fixedly connected to the positioning limiting plate, and the other end is fixedly connected to the outer wall of the fixing arc plate.

[0025] The sealing rubber bladder is connected to the inner wall of the positioning semi-ring block; when the two positioning semi-ring blocks are combined, the inner walls of the sealing rubber bladders on both inner walls come into contact with the outer wall of the nozzle and the water outlet pipe joint.

[0026] Preferably, it includes a gas storage cavity, which is disposed inside a sealed rubber bladder;

[0027] Signal contacts; both signal contacts are located on the opposite sides of the positioning semi-ring block and the fixing arc plate; the two signal contacts are electrically connected;

[0028] Active base, installed on the side of the retaining arc plate;

[0029] The driven base is connected to the side of the positioning semi-ring block; a gas storage cylinder is installed on the side of the driven base near the active base.

[0030] Preferably, it includes a pressing square column, which is connected through the active base to the side near the driven base; the pressing square column and the active base are slidably engaged; one end of the pressing square column is located inside the gas storage cylinder, and the two are slidably engaged; the other end of the pressing square column is connected to a pressing limit plate;

[0031] A compression spring is sleeved on the compression square column; one end of the compression spring is fixedly connected to the active base, and the other end is fixedly connected to the compression limiting plate;

[0032] The first air intake valve is located at the end of the air storage cylinder away from the pressure column;

[0033] The ventilation tube is connected at both ends to the gas storage cylinder and the sealing rubber bladder, respectively; the gas storage cylinder is connected to the gas storage cavity inside the sealing rubber bladder through the ventilation tube.

[0034] The first closing valve is installed inside the vent pipe;

[0035] A corrugated square tube is installed on the side of the gas storage cylinder away from the vent pipe; a second closing valve is connected inside the corrugated square tube; the corrugated square tube and the gas storage cylinder are connected.

[0036] Preferably, it includes a brake ring, which is installed on the outer wall of the water inlet pipe, and the two are coaxial; the brake ring is meshed with a brake gear; a brake cam is installed on the brake gear; two cams on the brake cam are symmetrically arranged with the center of the brake gear as the center.

[0037] A guide base is installed on the outer wall of the water outlet pipe; two guide bases are symmetrically arranged with the center of the brake gear as the axis of symmetry; an air-generating box is installed on the side of the guide base away from the brake cam; the opening of the air-generating box is close to the guide base; a second air inlet valve is provided on the side of the air-generating box away from the guide base.

[0038] Preferably, the guide base has a through guide cylinder on the side near the brake cam; the guide cylinder and the guide base are slidably fitted; an actuating column is connected to the end of the guide cylinder near the brake cam; a guide slide plate is connected to the end of the guide cylinder away from the brake cam; the guide slide plate is fitted into the opening of the gas-operated box, and the two are slidably fitted; a guide spring is sleeved on the guide cylinder; one end of the guide spring is fixedly connected to the guide base, and the other end is fixedly connected to the guide slide plate.

[0039] Preferably, a third closing valve is included and installed on the gas generating box; the third closing valve is located at the end of the maximum travel stroke of the guide slide.

[0040] A bent pipe; one end of the bent pipe is installed on the gas generating box and connected to the third closing valve; the other end of the bent pipe faces the side wall of the sealing rubber bladder; when the sealing rubber bladder contacts the outer wall of the nozzle and the water outlet pipe, the end of the corrugated square tube away from the gas storage cylinder is flush with the end of the bent pipe facing the side wall of the sealing rubber bladder, and the opposite ends of the corrugated square tube and the bent pipe are in magnetic contact.

[0041] Compared with the prior art, the beneficial effects of the present invention are:

[0042] (1) Rotate the transfer pipe so that its two ends are limited to rotate within the opposite ends of the two inlet pipes, so that the nozzles on the transfer pipe rotate synchronously. This can be used to adjust and control the working angle of the nozzles to increase their spray range. At the same time, the rotating ring on the transfer pipe is limited to rotate within the rotating base to position the rotation of the transfer pipe and prevent it from shaking due to unstable factors when it drives the nozzles to rotate. This ensures the stability of the nozzles when adjusting the angle, thereby further improving the use effect of the nozzles. This makes it easy to adjust the working angle of the nozzles when using the fire-fighting equipment sprayer, and the operator does not need to manually lift it to adjust the angle. This reduces the workload of the operator and improves the use effect of the fire-fighting equipment sprayer, thus reducing the limitations of the equipment.

[0043] (2) The gas in the gas generating box is squeezed into the bent pipe and continuously transported by the corrugated square tube connected to it until the gas is transported into the gas storage cylinder, so that the gas is continuously and actively replenished into the gas storage cylinder during the adjustment of the nozzle angle; if the nozzle is unstable due to frequent shaking caused by the impact force in the previous working process, the sealing rubber bladder in contact with the nozzle will be continuously subjected to force, which will accelerate its wear, and the gas in the bladder will also be easily lost due to repeated squeezing and reset, so as to actively replenish the gas storage cylinder; if the gas loss in the sealing rubber bladder is small, the gas entering the gas storage cylinder will act on the pressing column, increase the force on it, and make the pressing column move at the active base, so that the pressing column can move at the active base, and make the pressing column move at the active base. The spring is in a buffer state; when a lot of gas is lost from the sealing rubber bladder, it deflates, and the force acting on the pressing column is gradually reduced, causing the spring in the buffer state to gradually return to its original position. This causes the pressing column to move back to its original position, further compressing the space inside the air storage cylinder. The gas inside is then squeezed back into the sealing rubber bladder, preventing it from deflating and restoring the filling of the gap between the nozzle and the water outlet pipe. This ensures that the connection between the nozzle and the water outlet pipe is sealed when the nozzle is used again after the angle has been adjusted. As a result, the sealing rubber bladder can always be in an expanded state for use, preventing it from deflating and affecting the nozzle's performance. This reduces the limitations of the equipment and improves its performance.

[0044] (3) When the fixed arc plate moves to the limit at the positioning slide column, the pressing square column on the fixed arc plate moves closer to the air storage cylinder under the action of the pressing spring, so that the pressing square column moves to the limit within the air storage cylinder, and the internal space is squeezed; by opening the first closing valve and closing the first air inlet valve, the compressed gas in the air storage cylinder is input into the air storage cavity through the vent pipe, so that the sealing rubber bladder expands after being filled with gas, to fill the gap at the joint between the nozzle and the water outlet pipe, thereby improving the sealing performance at the joint between the nozzle and the water outlet pipe, and avoiding leakage of the sprayed water flow due to poor sealing effect at the joint, which affects the water pressure at the nozzle, thereby improving the performance of the equipment, and further ensuring the connection between the two when the nozzle is fixedly clamped on the water outlet pipe. The sealing performance is improved, thus further enhancing the spray head's performance. However, if the spray head experiences fluctuating recoil force due to varying water pressure during use, it can become unstable. The resulting force is transmitted to the sealing rubber bladder, compressing the gas in its storage chamber. Opening the first closing valve allows the compressed gas to act on the pressure column, causing it to move at its upper limit on the active base. This puts the pressure spring in a buffered state, providing cushioning and energy absorption to reduce or adapt to the spray head's recoil force, further reducing the impact and recoil during use. This improves the spray head's stability, enhances the equipment's performance, and reduces its limitations.

[0045] (4) After the operator completes the adjustment of the nozzle angle, the locking slider can be released, so that the locking spring, which was originally in the buffer state, is reset and the locking slider is moved on the locking cylinder. The locking rod on the locking slider passes through the side of the rotating base and connects with one of the locking slots, so that the rotating ring is fixed and limited. This prevents the working angle of the nozzle from changing due to strong impact when the nozzle is used at different angles, reduces the limitations of the equipment, and further improves the effect of the equipment. This prevents the nozzle from shaking when it is used and improves its stability when it is used.

[0046] (5) The positioning half-ring block moves close to the outer wall of the nozzle and the outlet pipe connection until the positioning half-ring block contacts the outer wall of the connection, thereby further clamping the nozzle, improving the connection strength between the nozzle and the outlet pipe, and preventing the nozzle from being dislodged due to the impact force generated during use, thus improving the installation effect of the nozzle and its use effect; at the same time, when the positioning half-ring block contacts the outer wall of the connection, it also means that the sealing rubber bladder on the positioning half-ring block contacts the outer wall of the nozzle and the outlet pipe connection, which is used to strengthen and improve the contact strength and friction between the positioning half-ring block and the nozzle and the outlet pipe. At this time, by continuing to drive the fixed screw to rotate, the fixed arc plate moves at the positioning slide column, so that the positioning spring is in a buffer state, thereby further strengthening the contact strength and friction between the positioning half-ring block and the outer wall of the connection, preventing the nozzle from being easily dislodged during use due to insufficient friction or insufficient strength during the clamping process, further improving the installation effect and use stability of the nozzle, and further ensuring the connection effect between the nozzle and the outlet pipe;

[0047] (6) As the distance between the fixed arc plate and the positioning half-ring block continues to decrease until the signal contact pieces on their opposite surfaces come into contact, the contact of the two signal contact pieces will cause the controller to receive the signal, indicating that the clamping and fixing operation of the nozzle has been completed. If the controller suddenly loses the signal during the use of the equipment, it means that the nozzle has disengaged from the contact with the positioning half-ring block, causing the positioning spring in the buffer state to automatically reset, thus resetting the distance between the fixed arc plate and the positioning half-ring block, so that the signal contact pieces of the two no longer come into contact. The controller will then send an alarm signal to the terminal immediately to promptly remind the operator to pay attention and avoid the nozzle dislocation from causing injury to personnel. At the same time, it will further prevent the equipment from affecting the fire extinguishing effect, thus reducing the limitations of the equipment's use. Attached Figure Description

[0048] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0049] In the attached diagram:

[0050] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 This is a schematic diagram of the retaining arc plate structure of the present invention;

[0052] Figure 3 This is a cross-sectional view of the nozzle of the present invention;

[0053] Figure 4 This is a schematic diagram of the brake gear ring structure of the present invention;

[0054] Figure 5This is a schematic diagram of the rotating ring structure of the present invention;

[0055] Figure 6 This is an exploded cross-sectional view of the locking slot of the present invention;

[0056] Figure 7 This is a cross-sectional view of the gas storage cavity of the present invention;

[0057] Figure 8 This is a schematic diagram of the signal contact structure of the present invention;

[0058] Figure 9 This is a cross-sectional view of the water inlet pipe of the present invention;

[0059] Figure 10 This is a schematic diagram of the bent square bar structure of the present invention;

[0060] Figure 11 This is a cross-sectional view of the water storage tank of the present invention;

[0061] Figure 12 This is a schematic diagram of the bent pipe structure of the present invention;

[0062] Figure 13 This is a cross-sectional view of the gas storage cylinder of the present invention;

[0063] Figure 14 This is a cross-sectional view of the gas-generating box of the present invention;

[0064] In the diagram: 1. Water storage tank; 2. Sprinkler head; 3. U-shaped bracket; 4. Inlet pipe; 5. Transfer pipe; 6. Outlet pipe; 7. Support frame; 8. Fixing base; 9. Brake gear; 10. Rotating ring; 11. Rotating base; 12. Locking slot; 13. Locking base; 14. Locking cylinder; 15. Locking slider; 16. Locking spring; 17. Locking rod; 18. Fixing screw; 19. Fixing block; 20. Drive source; 21. Fixing cylinder; 22. Bending square rod; 23. Fixing arc plate; 24. Positioning slide; 25. Positioning semi-ring block; 26. Positioning spring; 27. Sealing rubber bladder; 28. Air storage chamber; 29. ​​Signal contact; 30. Active base; 31. Driven base; 32. Air storage cylinder; 33. Pressing column; 34. Pressing spring; 35. First air intake valve; 36. Vent pipe; 37. First closing valve; 38. Corrugated square tube; 39. Second closing valve; 40. Brake toothed ring; 41. Brake cam; 42. Guide base; 43. Air control box; 44. Second air intake valve; 45. Guide cylinder; 46. Actuating column; 47. Guide slide plate; 48. Guide spring; 49. Third closing valve; 50. Bent pipe. Detailed Implementation

[0065] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0066] Implementation examples, by Figures 1 to 14 The present invention includes a water storage tank 1; a nozzle 2; a U-shaped bracket 3 mounted on the top of the water storage tank 1; a rotary angle adjustment device on the U-shaped bracket 3 for adjusting the working angle of the nozzle 2; the rotary angle adjustment device includes water inlet pipes 4; one end of two water inlet pipes 4 are symmetrically connected to the top of the water storage tank 1; the other ends of the two water inlet pipes 4 are arranged opposite each other and connected to the U-shaped bracket 3; a transfer pipe 5, both ends of which are connected to the opposite ends of the two water inlet pipes 4; the end of the water inlet pipe 4 away from the water storage tank 1 is fitted and connected to the transfer pipe. Inside pipe 5; the transfer pipe 5 and the inlet pipe 4 are rotatably connected; the outlet pipe 6 is installed on the outer wall of the transfer pipe 5, and the two are connected; the end of the outlet pipe 6 away from the transfer pipe 5 is connected to the nozzle 2; the support frame 7 is rotatably connected to the bottom of the water storage tank 1; the relative fixing mechanism is set on the outlet pipe 6; the relative fixing mechanism is used to strengthen the connection between the nozzle 2 and the outlet pipe 6; the gas blocking and sealing component is set on the outlet pipe 6; the gas blocking and sealing component is used to ensure the sealing of the connection between the nozzle 2 and the outlet pipe 6; rotating A rotating ring 10 is installed on the outer wall of the transfer pipe 5, and the two are coaxial in center; a rotating base 11 is connected to the side of the U-shaped bracket 3 near the transfer pipe 5; the rotating ring 10 is fitted into the rotating base 11, and the two rotate in coordination; a locking slot 12 is provided through the side wall of the rotating ring 10; several locking slots 12 are arranged equidistantly around the center of the rotating ring 10; a locking base 13 is fixedly connected to the side of the U-shaped bracket 3 near the transfer pipe 5; a locking cylinder 14 is installed... A locking base 13 is located near the locking slot 12. A locking slider 15 is connected through the locking cylinder 14 and can slide along the locking cylinder 14. A locking spring 16 is sleeved on the locking cylinder 14. One end of the locking spring 16 is fixedly connected to the locking base 13, and the other end is fixedly connected to the locking slider 15. A locking rod 17 is fixedly connected to the locking slider 15. The locking rod 17 passes through the side of the rotating base 11 and is connected to one of the locking slots 12.

[0067] When in use, the support frame 7 can be fixed to the ground with bolts, or the support frame 7 can be folded up and the device can be used by holding the handles on the outer wall of the water tank 1. This adapts the device to different usage scenarios and needs, reducing the limitations of fire-fighting equipment sprayers. During use, the working angle of the nozzle 2 can be adjusted by operating the rotary angle adjustment device to expand its spray range and angle, further improving the device's effectiveness. Specifically, by pulling the locking slider 15 outwards, it moves to the upper limit of the locking cylinder 14, causing the locking spring 16 to be in a buffer state. This causes the locking rod 17 on the locking slider 15 to disengage from the rotating base 11, thus releasing the locking rod 17 from the locking slot 12 and releasing the limiting setting on the rotating ring 10. At this point, the transfer pipe 5 can be rotated, causing its two ends to rotate within the opposite ends of the two inlet pipes 4, thereby causing the nozzles 2 on the transfer pipe 5 to rotate synchronously. This allows for adjustment and control of the working angle of the nozzles 2, increasing their spray range. Simultaneously, the rotating ring 10 on the transfer pipe 5 is limited to rotate within the rotating base 11, positioning the rotation of the transfer pipe 5 and preventing it from shaking due to instability when rotating the nozzles 2. This ensures the stability of the nozzles 2 when adjusting their angle, further improving the effectiveness of the nozzles 2. This makes it easier to adjust the working angle of the nozzles 2 during use, eliminating the need for manual lifting by the operator. This reduces the workload of the operator while improving the effectiveness of the fire-fighting equipment, thus reducing the limitations of the equipment's use.

[0068] Once the operator has adjusted the angle of the nozzle 2, the locking slider 15 can be released, causing the locking spring 16, which was originally in a buffer state, to reset. This causes the locking slider 15 to move back to its original position on the locking cylinder 14, allowing the locking rod 17 on the locking slider 15 to pass through the side of the rotating base 11 and connect with one of the locking slots 12. This limits and fixes the rotating ring 10, preventing the working angle of the nozzle 2 from changing due to strong impact when used at different angles. This reduces the limitations of the equipment and further improves its performance, thus preventing the nozzle 2 from shaking during use and improving its stability.

[0069] The relative fixing mechanism of this embodiment includes a fixing base 8 connected to the outer wall of the water outlet pipe 6; a fixing screw 18 installed on the fixing base 8; the fixing base 8 is located at the middle position of the fixing screw 18; the fixing screw 18 is provided with two threaded areas in opposite directions; the two threaded areas are symmetrically arranged about the fixing base 8 as an axis of symmetry; a fixing block 19 threadedly connected to the threaded area; a drive source 20 installed on the fixing base 8; the output end of the drive source 20 is connected to the fixing screw 18; a fixing cylinder 21 installed on the fixing base 8; the fixing cylinder 21 is connected through to the fixing block 19, and the two are slidably engaged; a bent square rod 22, one end of which is connected to the fixing block 19, and the other end is connected to a fixing arc plate 23; the two fixing arc plates 23 are connected to the fixing block 19 as follows: The nozzle 2 is symmetrically arranged around its center axis; a positioning slide 24 is connected through the fixed arc plate 23 on the side away from the outer wall of the nozzle 2; the fixed arc plate 23 and the positioning slide 24 are in sliding fit; a positioning limit plate is connected to the end of the positioning slide 24 away from the outer wall of the nozzle 2; a positioning semi-ring block 25 is connected to the end of the positioning slide 24 near the outer wall of the nozzle 2; the two positioning semi-ring blocks 25 are combined into a complete circle, the inner diameter of which is the same as the outer diameter of the connection between the nozzle 2 and the water outlet pipe 6; a positioning spring 26 is sleeved on the positioning slide 24; one end of the positioning spring 26 is fixedly connected to the positioning limit plate, and the other end is fixedly connected to the outer wall of the fixed arc plate 23; a sealing rubber bladder 27 is connected to the inner wall of the positioning semi-ring block 25; when the two positioning semi-ring blocks 25 are combined... Afterwards, the inner walls of the sealing rubber bladder 27 on both sides contact the outer wall of the nozzle 2 and the outlet pipe 6; the air storage chamber 28 is set inside the sealing rubber bladder 27; signal contact piece 29; both signal contact pieces 29 are set on the opposite surfaces of the positioning semi-ring block 25 and the fixed arc plate 23; the two signal contact pieces 29 are electrically connected; the active base 30 is installed on the side of the fixed arc plate 23; the driven base 31 is connected to the side of the positioning semi-ring block 25; an air storage cylinder 32 is installed on the side of the driven base 31 near the active base 30; the pressing column 33 is connected through the active base 30 near the driven base 31; the pressing column 33 and the active base 30 are in sliding fit; one end of the pressing column 33 is located inside the air storage cylinder 32, and the two... The components are: a sliding fit; a pressure limiting plate connected to the other end of the pressure column 33; a pressure spring 34 sleeved on the pressure column 33; one end of the pressure spring 34 fixedly connected to the active base 30, and the other end fixedly connected to the pressure limiting plate; a first air inlet valve 35 located at the end of the air storage cylinder 32 away from the pressure column 33; a vent pipe 36 connected at both ends to the air storage cylinder 32 and the sealing rubber bladder 27 respectively; the air storage cylinder 32 communicates with the air storage cavity 28 inside the sealing rubber bladder 27 through the vent pipe 36; a first closing valve 37 installed inside the vent pipe 36; a corrugated square tube 38 installed on the side of the air storage cylinder 32 away from the vent pipe 36; a second closing valve 39 connected inside the corrugated square tube 38; and the corrugated square tube 38 and the air storage cylinder 32 connected.

[0070] After the nozzle 2 is installed on the water outlet pipe 6, the working angle of the nozzle 2 can be adjusted as the transfer pipe 5 rotates. During use, the drive source 20 can be started to drive the fixing screw 18 to rotate, so that the two threaded fixing blocks 19 move relative to each other at the upper limit of the fixing cylinder 21. Under the action of the bent square rod 22, the fixing arc plate 23 moves closer to the outer wall of the joint between the nozzle 2 and the water outlet pipe 6, so that the two fixing arc plates 23 move relative to each other. Under the action of the positioning slide 24 and the positioning spring 26, the positioning semi-ring block 25 moves closer to the outer wall of the joint between the nozzle 2 and the water outlet pipe 6, until the positioning semi-ring block 25 moves closer to the outer wall of the joint between the nozzle 2 and the water outlet pipe 6. Contact with the outer wall of the aforementioned docking point further clamps the nozzle 2, enhancing the connection strength between the nozzle 2 and the water outlet pipe 6. This prevents the nozzle 2 from dislodging due to impact forces during use, thereby improving the installation effect of the nozzle 2 and its performance. Simultaneously, when the positioning semi-ring block 25 contacts the outer wall of the aforementioned docking point, it also indicates that the sealing rubber bladder 27 on the positioning semi-ring block 25 contacts the outer wall of the docking point between the nozzle 2 and the water outlet pipe 6. This strengthens and enhances the contact strength and friction between the positioning semi-ring block 25 and the nozzle 2 and the water outlet pipe 6. At this point, by continuing to drive the retaining screw 18 to rotate, the retaining arc plate 23... The positioning slide 24 moves to a limit position, causing the positioning spring 26 to be in a buffer state. This further strengthens the contact strength and friction between the positioning semi-ring block 25 and the outer wall of the aforementioned mating point, preventing the nozzle 2 from easily dislodging during use due to insufficient friction or strength during clamping. This further improves the installation effect and operational stability of the nozzle 2, and further ensures the connection effect between the nozzle 2 and the water outlet pipe 6. It is worth mentioning that as the distance between the fixing arc plate 23 and the positioning semi-ring block 25 continuously decreases until the signal contact pieces 29 on their opposing surfaces contact, the contact of the two signal contact pieces 29 will cause the controller to... Receiving this signal indicates that the clamping and fixing operation of the nozzle 2 has been completed. If the controller suddenly loses this signal during the use of the equipment, it means that the nozzle 2 has disengaged from the positioning half-ring block 25, causing the positioning spring 26, which is in a buffer state, to automatically reset, thus resetting the distance between the fixing arc plate 23 and the positioning half-ring block 25, so that the signal contact 29 of the two no longer contacts. The controller will then send an alarm signal to the terminal immediately to promptly remind the operator to pay attention and avoid the nozzle 2 disengaging from causing injury to personnel. At the same time, it further avoids the equipment from affecting the fire extinguishing effect, thereby reducing the limitations of the equipment's use.

[0071] When the positioning semi-ring block 25 contacts the outer wall at the junction of the nozzle 2 and the water outlet pipe 6, the air storage cylinder 32 on the positioning semi-ring block 25 causes the corrugated square tube 38 to move to a position coaxially aligned with the end of the bent pipe 50 near the sealing rubber bladder 27, so that the opposite ends of the corrugated square tube 38 and the bent pipe 50 are magnetically attracted together; at the same time, when the fixed arc plate 23 moves to the limit at the positioning sliding column 24, the pressing square column 33 on the fixed arc plate 23 moves closer to the storage cylinder under the action of the pressing spring 34. The movement of the air cylinder 32 causes the pressing column 33 to move within the air storage cylinder 32, compressing its internal space. By opening the first closing valve 37 and closing the first air inlet valve 35, the compressed gas in the air storage cylinder 32 is introduced into the air storage cavity 28 through the vent pipe 36. This causes the sealing rubber bladder 27 to expand after being filled with gas, filling the gap at the joint between the nozzle 2 and the water outlet pipe 6. This improves the sealing performance of the connection between the nozzle 2 and the water outlet pipe 6, preventing any gaps in the sealing effect. The leakage of water jets affects the water pressure at nozzle 2, thereby improving the equipment's performance. This further ensures the sealing performance of the connection between nozzle 2 and outlet pipe 6 when the nozzle 2 is fixedly clamped, thus further improving the performance of nozzle 2. At the same time, if the recoil force on nozzle 2 changes continuously due to fluctuations in water pressure during use, it will lead to instability during use. The resulting force will be transmitted to the sealing rubber bladder 27, causing the gas in the gas storage chamber 28 inside to be compressed. By opening the first closing valve 37, the compressed gas acts on the pressure column 33, causing it to move at the upper limit of the active base 30, so that the pressure spring 34 is in a buffer state. The resulting buffering performance and energy absorption effect reduce or adapt to the recoil force of nozzle 2 during use, further reducing the impact and recoil force of nozzle 2 during use, thereby improving the stability of nozzle 2 during use, improving the equipment's performance, and further reducing the limitations of the equipment's use.

[0072] The gas-blocking and sealing assembly of this embodiment includes a brake gear 9, installed on the outer wall of the water outlet pipe 6; a brake ring 40, installed on the outer wall of the water inlet pipe 4, with the two having coaxial centers; the brake ring 40 meshes with the brake gear 9; a brake cam 41 is installed on the brake gear 9; two cams on the brake cam 41 are symmetrically arranged with the center of the brake gear 9 as the center; a guide base 42 is installed on the outer wall of the water outlet pipe 6; two guide bases 42 are symmetrically arranged with the center of the brake gear 9 as the axis of symmetry; a gas-blocking box 43 is installed on the side of the guide base 42 away from the brake cam 41; the opening of the gas-blocking box 43 is close to the guide base 42; a second air inlet valve 44 is provided on the side of the gas-blocking box 43 away from the guide base 42; a through guide cylinder 45 is provided on the side of the guide base 42 close to the brake cam 41; the guide cylinder 45 and the guide base 42 are in sliding fit; an actuating column 46 is connected to the end of the guide cylinder 45 close to the brake cam 41; A guide cylinder 45 is connected to a guide slide plate 47 at one end away from the brake cam 41; the guide slide plate 47 is fitted into the opening of the gas generating box 43, and the two slide together; a guide spring 48 is sleeved on the guide cylinder 45; one end of the guide spring 48 is fixedly connected to the guide base 42, and the other end is fixedly connected to the guide slide plate 47; a third closing valve 49 is installed on the gas generating box 43; the third closing valve 49 is located at the maximum travel end of the guide slide plate 47; a bent pipe 50; one end of the bent pipe 50 is installed on the gas generating box 43 and connected to the third closing valve 49; the other end of the bent pipe 50 faces the side wall of the sealing rubber bladder 27; when the sealing rubber bladder 27 contacts the outer wall of the nozzle 2 and the water outlet pipe 6, the corrugated square tube 38 away from the gas storage cylinder 32 is flush with the end of the bent pipe 50 facing the side wall of the sealing rubber bladder 27, and the opposite ends of the corrugated square tube 38 and the bent pipe 50 are magnetically attracted to each other;

[0073] When the opposite ends of the corrugated square tube 38 and the bent pipe 50 are magnetically attracted together, it indicates that the equipment has completed the further fixing of the nozzle 2. During this process, if the angle of the nozzle 2 is adjusted, the brake gear 9 on the outlet pipe 6 rotates around the brake ring 40, thereby driving the brake cam 41 to rotate. This causes the two symmetrical cams to simultaneously contact the side walls of the two actuating columns 46, causing the two actuating columns 46 to move away from each other. This allows them to move at the upper limit of the guide base 42 via the guide cylinder 45, putting the guide spring 48 in a buffered state. When the two symmetrical cams of the brake cam 41 are no longer in contact with the actuating columns 46, the guide spring 48, which was originally in a buffered state, returns to its original position. The guide cylinder 45 is driven to reset and move on the guide base 42. Since the rotation of the brake cam 41 is continuous, the guide slide plate 47 on the guide cylinder 45 continuously reciprocates within the gas-generating box 43. When the guide slide plate 47 moves away from the second air intake valve 44 within the gas-generating box 43, the second air intake valve 44 opens and the third closing valve 49 closes, allowing external gas to be drawn into the gas-generating box 43 after passing through the second air intake valve 44. When the guide slide plate 47 moves closer to the second air intake valve 44 within the gas-generating box 43, the second air intake valve 44 closes and the third closing valve 49 opens, causing the gas within the gas-generating box 43 to be squeezed into the bent pipe 50 and continuously transported by the corrugated square pipe 38 connected to it. The gas is continuously and actively replenished into the gas storage cylinder 32 during the angle adjustment of the nozzle 2, until the gas is delivered into the gas storage cylinder 32. If the nozzle 2 is unstable due to frequent shaking caused by the impact force during the previous operation, the sealing rubber bladder 27 in contact with the nozzle 2 will be under continuous force, which will accelerate its wear. The gas inside the bladder will also be easily lost due to repeated compression and reset. The gas is replenished into the gas storage cylinder 32 through the above-mentioned active replenishment. If the gas loss in the sealing rubber bladder 27 is small, the gas entering the gas storage cylinder 32 will act on the pressing column 33, increasing the force on it, causing the pressing column 33 to move in a limited position at the active base 30, so that the pressing spring 34 is in a buffer state. When the sealing rubber bladder 27 When a significant amount of gas is lost, the gas inside the cylinder deflates, gradually reducing the force acting on the pressing column 33. This causes the pressure spring 34, which is in a buffer state, to gradually return to its original position, moving the pressing column 33 back to its original position. This further compresses the space inside the gas storage cylinder 32, forcing the gas back into the sealing rubber bladder 27. This prevents the bladder from deflating and restores the filling of the gap between the nozzle 2 and the water outlet pipe 6. This ensures that the connection between the nozzle 2 and the water outlet pipe 6 is sealed when the nozzle 2 is adjusted for the next use. As a result, the sealing rubber bladder 27 can always be in an inflated state for use, preventing it from deflating and affecting the performance of the nozzle 2. This reduces the limitations of the equipment and improves its performance.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting sprayer, comprising a water storage tank; a nozzle; characterized in that... ； A U-shaped bracket is installed on the top of the water storage tank; a rotary angle adjustment device is provided on the U-shaped bracket for adjusting the working angle of the nozzle; the rotary angle adjustment device includes water inlet pipes; one end of the two water inlet pipes is symmetrically connected to the top of the water storage tank; the other ends of the two water inlet pipes are arranged opposite each other and connected to the U-shaped bracket. The transfer pipe is connected at both ends to the opposite ends of two water inlet pipes; the end of the water inlet pipe away from the water storage tank is fitted into the transfer pipe; the transfer pipe and the water inlet pipe are rotatably connected. The water outlet pipe is installed on the outer wall of the transfer pipe, and the two are connected; the end of the water outlet pipe away from the transfer pipe is connected to the nozzle. The support frame is rotatably connected to the bottom of the water storage tank; A relative fixing mechanism is provided on the water outlet pipe; the relative fixing mechanism is used to strengthen the connection between the nozzle and the water outlet pipe; the relative fixing mechanism includes a fixing base connected to the outer wall of the water outlet pipe; An air-blocking and sealing assembly is installed on the water outlet pipe; the air-blocking and sealing assembly is used to ensure the sealing of the connection between the nozzle and the water outlet pipe; the air-blocking and sealing assembly includes a braking gear, which is installed on the outer wall of the water outlet pipe. The retaining screw is installed on the retaining base; The retaining base is located at the middle end of the retaining screw; the retaining screw has two threaded areas with opposite directions; the two threaded areas are symmetrically arranged about the retaining base as the axis of symmetry. A retaining circular block, threadedly connected to the threaded area; A drive source is mounted on a fixed base; the output end of the drive source is connected to a fixed lead screw. A retaining cylinder is installed on a retaining base; the retaining cylinder is connected through the retaining block, and the two are in sliding fit. A bent square rod is connected at one end to a retaining circular block and at the other end to a retaining arc plate; the two retaining arc plates are symmetrically arranged with the center of the nozzle as the axis of symmetry. A positioning slide column is connected through the fixed arc plate on the side away from the outer wall of the nozzle; the fixed arc plate and the positioning slide column are in sliding fit; a positioning limiting plate is connected to the end of the positioning slide column away from the outer wall of the nozzle; a positioning semi-ring block is connected to the end of the positioning slide column close to the outer wall of the nozzle; the two positioning semi-ring blocks are combined into a whole circle, and the inner diameter of the whole circle is the same as the outer diameter of the connection between the nozzle and the water outlet pipe; A positioning spring is sleeved on a positioning slide post; one end of the positioning spring is fixedly connected to the positioning limiting plate, and the other end is fixedly connected to the outer wall of the fixing arc plate. The sealing rubber bladder is connected to the inner wall of the positioning semi-ring block; when the two positioning semi-ring blocks are combined, the inner walls of the sealing rubber bladders on both inner walls come into contact with the outer wall of the nozzle and the water outlet pipe joint. The gas storage chamber is located inside a sealed rubber bladder; Signal contacts; both signal contacts are located on the opposite sides of the positioning semi-ring block and the fixing arc plate; the two signal contacts are electrically connected; Active base, installed on the side of the retaining arc plate; Driven base, connected to the side of the positioning semi-ring block; A gas storage cylinder is installed on the side of the driven base near the active base; A pressure column is connected through the active base to the side near the driven base; the pressure column and the active base are slidably fitted; one end of the pressure column is located inside the gas storage cylinder, and the two are slidably fitted; the other end of the pressure column is connected to a pressure limiting plate; A compression spring is sleeved on the compression square column; one end of the compression spring is fixedly connected to the active base, and the other end is fixedly connected to the compression limiting plate; The first air intake valve is located at the end of the air storage cylinder away from the pressure column; The ventilation tube is connected at both ends to the gas storage cylinder and the sealing rubber bladder, respectively; the gas storage cylinder is connected to the gas storage cavity inside the sealing rubber bladder through the ventilation tube. The first closing valve is installed inside the vent pipe; A corrugated square tube is installed on the side of the gas storage cylinder away from the vent pipe; a second closing valve is connected inside the corrugated square tube; the corrugated square tube and the gas storage cylinder are connected.

2. The fire-fighting sprayer according to claim 1, characterized in that: It includes a rotating ring, which is installed on the outer wall of the transfer pipe, and the two are coaxial; The rotating base is connected to the side of the U-shaped bracket near the transfer pipe; the rotating ring is fitted inside the rotating base, and the two rotate in coordination. A locking slot is provided through the side wall of the rotating ring; several locking slots are arranged circumferentially at equal intervals with the center of the rotating ring as the reference.

3. A fire-fighting sprayer according to claim 2, characterized in that: Includes a locking base, which is fixedly connected to the side of the U-shaped bracket near the transfer pipe; A locking cylinder is installed on the side of the locking base near the locking slot. A locking slider is connected through the locking cylinder, and the locking slider can slide along the locking cylinder; A locking spring is sleeved on a locking cylinder; one end of the locking spring is fixedly connected to the locking base, and the other end is fixedly connected to the locking slider. A locking rod is fixedly connected to the locking slider; the locking rod passes through the side of the rotating base and is connected to one of the locking slots.

4. A fire-fighting sprayer according to claim 1, characterized in that: It includes a brake ring, which is installed on the outer wall of the water inlet pipe, and the two are coaxial; the brake ring is meshed with a brake gear; a brake cam is installed on the brake gear; two cams on the brake cam are symmetrically arranged with the center of the brake gear as the center. A guide base is installed on the outer wall of the water outlet pipe; two guide bases are symmetrically arranged with the center of the brake gear as the axis of symmetry; an air-generating box is installed on the side of the guide base away from the brake cam; the opening of the air-generating box is close to the guide base; a second air inlet valve is provided on the side of the air-generating box away from the guide base.

5. A fire-fighting sprayer according to claim 4, characterized in that: The guide base has a through guide cylinder on the side near the brake cam; the guide cylinder and the guide base are slidably fitted; an actuating column is connected to the end of the guide cylinder near the brake cam; a guide slide is connected to the end of the guide cylinder away from the brake cam; the guide slide is fitted into the opening of the gas-operated box, and the two are slidably fitted; a guide spring is sleeved on the guide cylinder; one end of the guide spring is fixedly connected to the guide base, and the other end is fixedly connected to the guide slide.

6. A fire-fighting sprayer according to claim 4, characterized in that: Includes a third closing valve, installed on the gas-generating box; the third closing valve is located at the end of the maximum travel of the guide slide. A bent pipe; one end of the bent pipe is installed on the gas generating box and connected to the third closing valve; the other end of the bent pipe faces the side wall of the sealing rubber bladder; when the sealing rubber bladder contacts the outer wall of the nozzle and the water outlet pipe, the end of the corrugated square tube away from the gas storage cylinder is flush with the end of the bent pipe facing the side wall of the sealing rubber bladder, and the opposite ends of the corrugated square tube and the bent pipe are in magnetic contact.

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