Built-in shaft seat U-shaped barrel and its impact-resistant rotating cannon head

Abstract

This utility model relates to a U-shaped gun body with an internal bearing and its impact-resistant rotating gun head. The impact-resistant rotating gun head includes a U-shaped gun body with an internal bearing and a three-way pipe seat on which the gun head is mounted. Two U-shaped gun bodies are symmetrically arranged at both ends of the three-way pipe seat. The ports of the U-shaped gun bodies and the three-way pipe seat are connected by a rotary joint. A transverse pulling mechanism is provided between the three-way pipe seat and the two U-shaped gun bodies. The transverse pulling mechanism includes a pull rod, which is coaxially sleeved in the transverse tube body of the three-way pipe seat. The two ends of the pull rod are respectively connected to threaded blind holes in the two U-shaped gun bodies. The U-shaped gun body with an internal bearing and its impact-resistant rotating gun head of this utility model have threaded blind holes on the inner wall of the U-shaped gun body. The two ends of the pull rod are correspondingly installed in the threaded blind holes. This can provide tension to the U-shaped gun body while leaving enough space for the high-pressure water flow, allowing the water flow to pass undisturbed, thereby reducing the impact on the U-shaped gun body and enhancing the structural stability of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of fire monitors, and in particular to a U-shaped monitor body with an internal bearing seat. Background Technology

[0002] Fire monitors are fire extinguishing devices that use water as a medium to extinguish fires from a distance. They can perform continuous high-flow, long-range operations at the fire scene and are widely used in petrochemical enterprises, warehouses, and other similar locations. They are also ideal vehicle-mounted fire monitors for fire trucks.

[0003] Fire monitors are typically equipped with a monitoring system at their front end. When a fire is detected, the controller can direct the fire monitor to engage in firefighting operations until the fire is extinguished. Fire monitors can rotate horizontally up to 360° and vertically up to ±90°, providing comprehensive coverage of the protected area and enabling fire suppression without blind spots.

[0004] Fire monitors have a strong water flow impact force, which often causes them to deviate during firefighting operations due to the continuous impact of the water flow on the inner wall of the monitor. This deflection causes the angle of the monitor to change and the spray position to deviate. To solve this problem, Chinese Patent CN119406016A - Anti-impact Water Monitor Rotating Nozzle and its Anti-impact Fire Monitor, application date: 2024.12.30, discloses a fire monitor with anti-impact function; however, the bracket in this type of monitor is located in the middle of the T-junction port, which obstructs the water flow, reduces the water flow velocity, and thus affects the range of the rotating nozzle; it also disturbs the water flow, causing disturbance and impact on the T-junction, affecting the structural stability of the nozzle.

[0005] Therefore, an impact-resistant fire monitor is needed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the above problems and provide a U-shaped gun barrel with an internal bearing.

[0007] The technical solution of this utility model is: a U-shaped gun barrel with an internal bearing seat, wherein the inner wall of the right-angle bend of the U-shaped gun barrel is provided with a threaded blind hole, which is coaxially arranged with the tube body at the end of the U-shaped gun barrel. The threaded blind hole provided in the U-shaped gun barrel can provide a stable installation position.

[0008] Preferably, a boss is provided on the inner wall of the U-shaped gun body at the threaded blind hole, and the threaded blind hole is located inside the boss. Providing a boss can increase the thickness of the U-shaped gun body at the threaded blind hole, increase the strength of the U-shaped gun body, and improve the structural stability of the U-shaped gun body.

[0009] Furthermore, the protrusion is cylindrical or frustum-shaped. Cylindrical or frustum-shaped protrusions have smooth sidewalls, preventing direct impact from high-pressure water flow on the sidewalls and thus improving the service life of the U-shaped barrel.

[0010] An impact-resistant rotary gun head includes a U-shaped gun body with an internal bearing and a three-way tube seat on which the gun head is mounted. Two U-shaped gun bodies are symmetrically arranged at both ends of the three-way tube seat. The ports of the U-shaped gun bodies and the three-way tube seat are connected by a rotary joint. A transverse pulling mechanism is provided between the three-way tube seat and the two U-shaped gun bodies.

[0011] The aforementioned transverse counterweight mechanism includes a counterweight rod, which is coaxially fitted into the transverse tube body of the tee fitting. Both ends of the counterweight rod are connected to threaded blind holes within the two U-shaped barrels. Using the counterweight rod to provide tension to connect the two U-shaped barrels effectively resists the outward impact of high-pressure water flow, thereby ensuring the stability of the equipment structure.

[0012] Preferably, the middle section of the pull rod is a smooth axis, with threads only at both ends. Setting the middle section of the pull rod as a smooth axis minimizes the loss of kinetic energy to the water flow.

[0013] Preferably, a baffle is provided in the middle of the transverse tube, and a through hole is provided in the middle of the baffle for the pull rod to pass through. The baffle separates the water flow in the two U-shaped tubes, preventing the two water flows from axially colliding and converging, thereby reducing the loss of kinetic energy of the water flow and increasing the range of the water flow.

[0014] Furthermore, the junction between the baffle and the transverse pipe body of the tee fitting is designed in an arc shape. This arc shape prevents dead angles from forming at corners, reducing the kinetic energy loss of the water flow.

[0015] The beneficial effects of this utility model are as follows: The U-shaped gun barrel with built-in bearing and its impact-resistant rotating gun head of this utility model have the following advantages:

[0016] The impact-resistant rotating gun head of this invention has threaded blind holes on the inner wall of the U-shaped gun body. The two ends of the tie rod are installed in the threaded blind holes. This can provide tension to the U-shaped gun body while leaving enough space for the high-pressure water flow, reducing the obstruction and disturbance of the water flow caused by the tie rod connecting seat, thereby reducing the impact on the U-shaped gun body and enhancing the structural stability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the U-shaped gun barrel with built-in bearing and its impact-resistant rotating gun head of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the U-shaped gun barrel with built-in bearing and its impact-resistant rotating gun head of this utility model. Figure 2 (Remove the water cannon nozzle);

[0019] Figure 3 yes Figure 2 Top view;

[0020] Figure 4 yes Figure 3 Sectional view along axis AA;

[0021] Figure 5 yes Figure 4 BB view;

[0022] Figure 6 This is a schematic diagram of the U-shaped gun barrel with an internal bearing.

[0023] In the diagram: 00. Gun head, 1. T-joint, 11. Rotary joint, 12. Partition, 121. Through hole, 2. U-shaped gun body, 21. Threaded blind hole, 3. Pull rod. Detailed Implementation

[0024] Example 1: See Figure 6 A U-shaped gun barrel with an internal bearing seat is provided. The inner wall of the right-angle bend of the U-shaped gun barrel 2 is provided with a threaded blind hole 21, which is coaxially arranged with the tube body at the end of the U-shaped gun barrel 2. The threaded blind hole 21 in the U-shaped gun barrel 2 can provide a stable installation position.

[0025] A boss is provided on the inner wall of the U-shaped gun body 2 at the threaded blind hole 21, and the threaded blind hole 21 is located inside the boss. The boss can increase the thickness of the U-shaped gun body 2 at the threaded blind hole 21, increase the strength of the U-shaped gun body 2, and improve the structural stability of the U-shaped gun body 2.

[0026] The boss can be cylindrical or frustum-shaped. The cylindrical or frustum-shaped boss has smooth sidewalls to prevent high-pressure water flow from directly impacting the sidewalls of the boss, thereby improving the service life of the U-shaped gun body 2.

[0027] Example 2: See Figure 1-5 An impact-resistant rotating gun head includes a U-shaped gun body 2 with an internal bearing as described in Embodiment 1, and a three-way tube seat 1 on which the gun head 00 is mounted. Two U-shaped gun bodies 2 are symmetrically arranged at both ends of the three-way tube seat 1. The ports of the U-shaped gun bodies 2 and the three-way tube seat 1 are connected by a rotary joint 11. A transverse pulling mechanism is provided between the three-way tube seat 1 and the two U-shaped gun bodies 2.

[0028] The transverse tensioning mechanism includes a tension rod 3, which is coaxially fitted into the transverse tube of the tee fitting 1. Both ends of the tension rod 3 are connected to threaded blind holes 21 within the two U-shaped barrels 2. The tension rod 3 provides the pulling force to connect the two U-shaped barrels 2, effectively resisting the outward impact of high-pressure water flow to ensure the stability of the equipment structure.

[0029] The middle section of the pull rod 3 is a smooth shaft, with threads only at both ends. Setting the middle section of the pull rod 3 as a smooth shaft minimizes the loss of kinetic energy to the water flow.

[0030] A baffle 12 is provided in the middle of the transverse tube, and a through hole 121 is provided in the middle of the baffle 12, through which the pull rod 3 passes. The baffle 12 separates the water flow in the two U-shaped tubes, preventing the two water flows from axially colliding and converging, thereby reducing the loss of kinetic energy of the water flow and increasing the range of the water flow.

[0031] The junction between the baffle 12 and the transverse pipe body of the tee fitting 1 is rounded. This rounded junction prevents dead angles from forming at corners, reducing the kinetic energy loss of the water flow.

[0032] In this embodiment, the gun head 00 is driven to rotate by a worm gear mechanism.

[0033] The impact-resistant rotating gun head in this embodiment is installed using the following steps:

[0034] ① The port on the side of the U-shaped gun body 2 with the threaded blind hole 21 is aligned with the rotary joint 11 at the end of the transverse tube of the three-way pipe seat 1;

[0035] ② First connect the U-shaped gun body 2 on one side to the rotary joint 11;

[0036] ③ Insert the pull rod 3 from the other side of the tee seat 1, pass it through the through hole 121, and then screw the pull rod 3 to fit the pull rod 3 into the threaded blind hole 21 in the U-shaped gun body 2.

[0037] ④ Align the threaded blind hole 21 inside the U-shaped barrel 2 on the other side with the exposed end of the pull rod 3, and rotate the U-shaped barrel 2 until it is screwed into place;

[0038] ⑤ Connect the U-shaped gun body 2 on this side to the rotary joint 11 on this side.

Claims

1. A U-shaped gun barrel with an internal bearing, characterized in that: A threaded blind hole is provided on the inner wall of the right-angle bend of the U-shaped gun barrel, and the threaded blind hole is arranged coaxially with the tube at the port of the U-shaped gun barrel.

2. The U-shaped gun barrel with built-in bearing as described in claim 1, characterized in that: A boss is provided on the inner wall of the U-shaped gun barrel at the threaded blind hole, and the threaded blind hole is located inside the boss.

3. A U-shaped gun barrel with an internal bearing as described in claim 2, characterized in that: The protrusion is cylindrical or frustum-shaped.

4. An impact-resistant rotary gun head, comprising a U-shaped gun body with an internal bearing as described in any one of claims 1-3 and a three-way tube seat on which the gun head is mounted, wherein two U-shaped gun bodies are symmetrically arranged at both ends of the three-way tube seat, and the ports of the U-shaped gun bodies and the three-way tube seat are connected by a rotary joint, and a transverse pulling mechanism is provided between the three-way tube seat and the two U-shaped gun bodies, characterized in that: The aforementioned transverse pulling mechanism includes a pull rod, which is coaxially sleeved into the transverse tube body of the tee pipe seat, and the two ends of the pull rod are respectively connected to the threaded blind holes in the two U-shaped gun bodies.

5. The impact-resistant rotating gun head according to claim 4, characterized in that: The middle part of the pull rod is a smooth shaft, with a threaded section only at both ends.

6. The impact-resistant rotating gun head according to claim 4, characterized in that: The transverse tube is provided with a partition in the middle, and a through hole is provided in the middle of the partition, through which the pull rod passes.

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