An electric valve opener for fire protection

Abstract

The present invention relates to an electric valve opener for firefighting, comprising a starting switch, an inner rotor brushless motor, a motor speed regulator, a housing, a direct drive rod, a handle clamp, an adjustable diameter rod, an adjustable forward rod, a fixed sleeve, and a battery. The motor's outer stator is directly fixed to the housing, which includes a handle frame that can be grasped on both sides. The battery is fixed within the hollow handle frame. Two adjustable diameter rods with handle clamps can be adjusted in angle and fixed in position by a limit plate. The adjustable diameter rod and the adjustable forward rod are adjustable in length by a fixed sleeve. No deceleration mechanism is provided, reducing weight and friction loss. The present invention improves the efficiency of valve opening and closing for fire rescue personnel, reduces the burden on operators, and improves the success rate of accident handling.

Description

Technical Field

[0001] The invention belongs to the technical field of fire fighting tools, and in particular relates to a light fire fighting mobile portable valve opener. Background Art

[0002] Currently, during firefighting and rescue incidents, the automatic closing mechanisms of valves in civil water supply and drainage pipelines, gas pipelines, and chemical plants can fail due to explosion damage, power outages, and mechanical failures. Rescuers are constantly exposed to high temperatures, hypoxia, and toxic gases, forcing them to quickly and manually close the valves. Manually closing valves is physically demanding and time-consuming, and the speed with which they close can determine the success of the rescue operation and the protection of public life and property. Summary of the Invention

[0003] In response to the above problems, the technical solution adopted by the present invention is to provide an electric valve opener for fire fighting, including a starting switch, an inner rotor brushless motor, a motor speed regulator, a casing, a direct drive rod, a handle clamp, an adjustable diameter rod, an adjustable forward rod, a fixed sleeve, and a battery. The inner rotor brushless motor directly drives the force-applying components including the adjustable diameter rod and the adjustable forward rod through the direct drive rod. Three adjustable diameter rods are connected to the direct drive rod, two of which are provided with handle clamps, and each adjustable diameter rod is fixed with an adjustable forward rod.

[0004] The electric valve opener for fire fighting of the present invention is suitable for manually opening and closing manual valves of civil water supply, gas supply, etc., gas transmission, liquid transmission and other pipeline networks of various factories during fire rescue. It is powered by a built-in battery, is easy to operate and is suitable for various types of manual valves.

[0005] The outer stator of the inner rotor brushless motor is directly fixed on the housing and is powered by a battery through a motor speed regulator, without the need for a speed reduction mechanism.

[0006] The shell comprises a handle frame which can be grasped at both sides, and the battery is fixed in the hollow handle frame.

[0007] The start switch is located on the handle frame and directly controls the closing and opening of the motor speed regulator through the circuit.

[0008] A limit plate is fixed on the direct drive rod, and two diameter-adjustable rods provided with handles for clamping can adjust the angle and fix the position.

[0009] The adjustable diameter rod and the adjustable forward rod are provided with a fixing sleeve, and the connection between the two sections of the adjustable diameter rod and the adjustable forward rod can be tightened or loosened by rotating the fixing sleeve to extend or retract the length of the adjustable diameter rod and the adjustable forward rod.

[0010] As described above, the electric valve opener for fire fighting of the present invention has the following beneficial effects:

[0011] First, the present invention does not provide a deceleration mechanism, thereby reducing weight and friction loss, and is convenient and flexible to use.

[0012] Secondly, through the motor speed regulator, the present invention always maintains maximum power operation after being turned on, and produces corresponding changes in speed according to the valve torque.

[0013] Third, in the present invention, the operator can naturally place his thumb on the start switch when holding the handle frame with both hands, which is convenient for turning on and off.

[0014] Fourthly, in the present invention, the handle clamp can adjust the angle of the adjustable diameter rod to adapt to valve handwheels of different specifications and shapes.

[0015] Fifth, in the present invention, the fixed sleeve can adjust the length of the adjustable diameter rod and the adjustable forward rod to adapt to valve handwheels of different sizes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with specific embodiments. These embodiments are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. Those skilled in the art may make various changes or modifications to the present invention, and these equivalents also fall within the scope limited by the appended claims of the application.

[0018] The purpose of this embodiment is to provide an electric valve opener for firefighting, which is used to address the problem of fire rescue personnel being unable to quickly and effectively open and close large manual valves or electric valves with inoperable electric mechanisms during incident response. The following details the principles and implementation of this embodiment of an electric valve opener for firefighting.

[0019] like Figure 1 and Figure 2 The electric valve opener for fire fighting shown in the figure includes a shell 1, a handle frame 2, an inner rotor brushless motor 3, a direct drive rod 4, a handle clamp 5, a fixed sleeve 6, an adjustable forward rod 7, a start switch 8, an adjustable diameter rod 9, a motor speed regulator 10, a battery 11, and a limit plate 12.

[0020] like Figure 2As shown, the three adjustable diameter rods 9 are numbered from left to right (clockwise when viewed from the top) as Rod A, Rod B, and Rod C. Rod C does not have a handle clamp. Depending on the valve handwheel, use the handle clamp 5 to adjust the angles of Rods A and B so that they are fixed to the stop plate 12. For handwheels on pages 2, 4, and 8, only Rod A and Rod C need to be adjusted relative to each other. For handwheels on pages 3, 6, and 9, the angles of all three rods must be aligned. For handwheels on pages 5 and 10, the angles between Rods B and C must be adjusted to 144 degrees, and between Rods A and B to 72 degrees. For handwheels on page 7, the angles between Rods B and C must be adjusted to 103 degrees, and between Rods A and B to 154 degrees. Depending on the valve size and diameter, use the fixing sleeve 6 to adjust the length of the adjustable diameter rods 9 so that the three rods are of the same length and the three adjustable forward rods 7 can be inserted into the valve handwheel. Loosen the fixed sleeve 6 on the adjustable forward rod 7, adjust the length of the adjustable forward rod 7 so that the fire-fighting electric valve opener is suitable for the current working conditions and easy to operate, and then tighten the fixed sleeve 6. The operator holds the handle frames 2 on both sides with both hands, inserts the adjustable forward rod 7 into the leaf gap corresponding to the valve handwheel, presses the start switch with the thumb, and the battery 11 supplies power to the motor speed regulator 10 and starts the motor 3. From the operator's perspective, the motor 3 rotates clockwise, generating torque that can rotate the valve handwheel. At the same time, the operator should overcome the reverse torque generated by the resistance.

[0021] After the valve is closed, the operator presses the start switch with his thumb to turn off the motor 3, and adjusts the length and angle of the adjustable forward rod 7 and the adjustable diameter rod 9 through the fixed sleeve 6 and the handle clamp 5 to restore the electric valve opener for fire fighting to the state before use.

Claims

1. An electric valve opener for fire protection, comprising a housing (1), a handle frame (2), an inner rotor brushless motor (3), a direct drive rod (4) and a start switch (8), wherein the inner rotor brushless motor (3) directly drives a force-applying component via the direct drive rod (4), and is characterized in that: The force-applying component comprises at least three adjustable diameter rods (9), each of which is fixed with an adjustable forward rod (7); A limit plate (12) is fixed on the direct drive rod (4), wherein at least two of the adjustable diameter rods (9) cooperate with the limit plate (12) through a handle clamp (5) to adjust the clamping angle between the adjustable diameter rods (9); The adjustable diameter rod (9) and the adjustable forward rod (7) are both provided with a rotating fixed sleeve (6) for extending and locking their lengths; Furthermore, a groove or track is provided at the connection position of each section of the adjustable diameter rod (9) through the fixed sleeve (6) to prevent the adjustable diameter rod (9) from rotating relative to the fixed sleeve when subjected to high torque. The torque-speed characteristic of the inner rotor brushless motor (3) realizes adaptive dynamic torque compensation under the control of the motor speed regulator (10), and the adjustment phase difference of the three adjustable diameter rods satisfies the formula θ≧360° / n, where n is the number of valve handwheel pages, and n≥2.

2. The electric valve opener for fire fighting according to claim 1, characterized in that: The outer stator of the inner rotor brushless motor (3) is directly fixed to the housing (1), and is powered by a battery (11) via a motor speed regulator (10), without the need for a speed reduction mechanism.

3. The electric valve opener for fire fighting according to claim 1, characterized in that: The housing comprises a handle frame (2) on both sides of which can be grasped by both hands, and the battery (11) is fixed in the hollow handle frame (2).

4. The electric valve opener for fire fighting according to claim 1, characterized in that: The start switch (8) directly controls the closing and opening of the motor speed regulator (10) through the circuit, and is located at a position on the handle frame (2) that can be pressed and controlled by the thumb.

Images