Safety fireproof valve

Abstract

The utility model discloses a safety fireproof valve which comprises a valve body, the valve body is installed and connected with a gas pipeline through connecting flanges at the left end and the right end, and a clamping device capable of conducting angle rotation is installed on the outer side of a rotating shaft. According to the device, the two handles are arranged to be used for opening the valve and closing the valve respectively, when an emergency situation occurs, a worker only needs to hold the closing handle tightly, rotate the closing handle clockwise to close the valve, hold the closing handle tightly to enable the valve to rotate by half a circle and then rotate the closing handle anticlockwise, and a torsional spring is compressed while rotating; and when the closing handle stops rotating anticlockwise, the torsional spring releases the elastic energy, so that the clamping device is clamped with the protruding mechanism again, a worker can clockwise operate the closing handle again to close the valve, the valve can be rapidly closed in an emergency situation, and therefore the safety of personnel and properties is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field related to safety fireproof valves, and in particular relates to a safety fireproof valve. Background Art

[0002] A safety fire valve is a valve used to prevent gas leaks from causing fires. It is usually installed on gas pipelines. When a gas pipeline leaks or a fire occurs, the valve will automatically close to prevent the gas from continuing to flow out, thereby reducing the risk of fire. Safety gas fire valves usually have two closing methods: automatic closing or manual closing to ensure that the valve can be closed in a timely and effective manner in an emergency. This valve plays a very important role in the gas supply system and can effectively protect people's lives and property safety.

[0003] Safety gas fire valve When the valve is manually closed by the handle, the traditional handle is slow to close, which increases the risk of fire spreading in emergency situations such as fire or gas leaks. Utility Model Content

[0004] The purpose of the utility model is to provide a safety fireproof valve to solve the problem that when the safety gas fireproof valve proposed in the above background technology is manually closed by a handle, the traditional handle has a slow closing speed, which increases the risk of fire spreading in emergency situations such as fire or gas leakage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety fireproof valve, comprising a valve body, the valve body is installed and connected to the gas pipeline through connecting flanges at left and right end positions, a spring is installed at the internal position of the valve body, a ball for controlling the flow of fluid is installed at the internal position of the valve body, a lower bearing is provided at the lower end position of the ball, a ball is provided at the upper end position of the ball, the ball can be opened and closed by a valve stem at the upper end position, the valve stem controls the rotation of the ball through a closing handle and an opening handle installed at the outer position, a ball is installed at the inner side of the closing handle at the upper and lower positions, a fixing plate is fixed at the inner side position of the closing handle, a plurality of protrusion mechanisms are distributed at the outer wall position of the valve stem, a rotating shaft is provided at the inner side position of the closing handle, a torsion spring is wound at the outer side position of the rotating shaft, and a clamping device capable of angular rotation is installed at the outer side position of the rotating shaft.

[0006] Preferably, the closing handle and the opening handle rotate in opposite directions, and the closing handle and the opening handle control the opening and closing of the fluid in the valve body through the valve stem.

[0007] Preferably, the rotation of the valve stem causes the ball to rotate at an internal position of the valve body, and the rotation of the ball is performed with the upper bearing and the lower bearing as the central axis.

[0008] Preferably, the valve body is mounted on the gas pipeline via a connecting flange so that the gas can flow through from an internal position.

[0009] Preferably, the closing handle is rotated so that the clamping device touches a protruding mechanism in the valve stem, and the clamping device generates an angular rotation when touching the protruding mechanism.

[0010] Preferably, the clamping device rotates with the rotating shaft as the central axis, and the rotation of the clamping device causes compression on the torsion spring.

[0011] Preferably, the torsion spring releases elastic energy after the clamping device is out of contact with the protruding mechanism to reset the clamping device.

[0012] Preferably, the fixing plate is fitted onto one end surface of the clamping device so that the closing handle and the opening handle can close and open the valve.

[0013] Compared with the prior art, the utility model provides a safety fireproof valve, which has the following beneficial effects:

[0014] 1. The device is provided with two handles for opening and closing the valve respectively. The opening handle and the closing handle rotate in opposite directions. When an emergency occurs, the staff only needs to hold the closing handle tightly and turn the closing handle clockwise to close the valve. When controlling the valve to be closed, the valve can be rotated by the clamping device and the raised structure being clamped together. After holding the closing handle tightly so that the valve can be rotated half a circle, the closing handle is rotated counterclockwise. When the closing handle rotates counterclockwise, the clamping device contacts the other side of the raised mechanism, thereby rotating with the rotating shaft as the central axis. While rotating, the torsion spring is compressed to store elastic energy. When the closing handle stops rotating counterclockwise, the torsion spring releases the elastic energy, so that the clamping device is clamped together with the raised mechanism again. The staff can operate the closing handle clockwise again to close the valve. In this way, the staff only needs to hold the closing handle tightly during the whole process of closing the valve, which can save a lot of time when operating the valve to close. When an emergency occurs, the valve can be quickly closed to ensure the safety of personnel and property.

[0015] 2. The device is equipped with balls at the inner side of the closing handle and the opening handle. The balls make the handles more flexible when turning, reduce the force and resistance during operation, and improve the comfort and convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The utility model is a schematic diagram of the structure of a safety fireproof valve.

[0017] Figure 2 The utility model is a schematic diagram of the internal structure of a safety fireproof valve.

[0018] Figure 3 The utility model is a schematic diagram of the internal structure of a safety fireproof valve stem.

[0019] Figure 4 The utility model is a schematic diagram of the internal structure of a safety fireproof valve clamping device.

[0020] In the figure: 1. valve body; 2. connecting flange; 3. opening handle; 4. valve stem; 5. closing handle; 6. ball; 7. lower bearing; 8. spring; 9. upper bearing; 10. ball; 11. protrusion mechanism; 12. fixing plate; 13. rotating shaft; 14. clamping device; 15. torsion spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 A safety fire damper shown in the figure comprises a valve body 1, which is installed and connected to a gas pipeline through connecting flanges 2 at left and right ends, a spring 8 is installed at an inner position of the valve body 1, a ball 6 for controlling fluid flow is installed at an inner position of the valve body 1, a lower bearing 7 is arranged at the lower end position of the ball 6, a ball 6 is arranged at the upper end position of the ball 6, the ball 6 is opened and closed by a valve stem 4 at the upper end position, the valve stem 4 controls the rotation of the ball 6 through a closing handle 5 and an opening handle 3 installed at the outer position, a ball 10 is installed at the inner side of the closing handle 5 at the upper and lower positions, a fixing plate 12 is fixed at the inner side position of the closing handle 5, a plurality of protruding mechanisms 11 are distributed at the outer wall position of the valve stem 4, a rotating shaft 13 is arranged at the inner side position of the closing handle 5, a torsion spring 15 is wound at the outer side position of the rotating shaft 13, and a clamping device 14 capable of angular rotation is installed at the outer side position of the rotating shaft 13.

[0023] When leakage and fire occur, the operating handle rotates, and the valve stem 4 rotates the ball 6 to the closed position. In the closed state, the sealing surface of the ball 6 is completely in contact with the valve body 1, preventing the gas from passing through the valve, so that the flame will not spread to other areas through the pipeline, thereby reducing the scope and harm of the fire.

[0024] like Figure 1 and Figure 2 As shown, the closing handle 5 and the opening handle 3 rotate in opposite directions. The closing handle 5 and the opening handle 3 control the opening and closing of the fluid in the valve body 1 through the valve stem 4. The rotation of the valve stem 4 causes the ball 6 to rotate at the internal position of the valve body 1. The rotation of the ball 6 takes the upper bearing 9 and the lower bearing 7 as the central axis. The valve body 1 is installed with the gas pipeline through the connecting flange 2 so that the gas can flow through the internal position. The closing handle 5 rotates so that the clamping device 14 touches the protruding mechanism 11 in the valve stem 4, and the clamping device 14 generates an angular rotation when touching the protruding mechanism 11.

[0025] Ball bearings 10 are installed at the inner side of the closing handle 5 and the opening handle 3. The ball bearings 10 make the handles more flexible when rotating, reduce the force and resistance during operation, and improve the comfort and convenience of operation.

[0026] like Figure 3 and Figure 4 As shown, the clamping device 14 rotates with the rotating shaft 13 as the central axis, and the rotation of the clamping device 14 compresses the torsion spring 15. After the clamping device 14 is out of contact with the protruding mechanism 11, the torsion spring 15 releases elastic energy to reset the clamping device 14. The fixing plate 12 is attached to the end surface of one side of the clamping device 14 so that the closing handle 5 and the opening handle 3 can close and open the valve.

[0027] When an emergency occurs, the staff only needs to hold the closing handle 5 tightly and turn the closing handle 5 clockwise to close the valve. When controlling the valve to be closed, the clamping device 14 is clamped together with the raised structure to allow the valve to rotate. After holding the closing handle 5 tightly so that the valve can rotate half a circle, the closing handle 5 is rotated counterclockwise. When the closing handle 5 rotates counterclockwise, the clamping device 14 contacts the other side of the raised mechanism 11, thereby rotating with the rotating shaft 13 as the central axis. While rotating, the torsion spring 15 is compressed to store elastic energy. When the closing handle 5 stops rotating counterclockwise, the torsion spring 15 releases the elastic energy, so that the clamping device 14 is clamped together with the raised mechanism 11 again, and the staff can operate the closing handle 5 clockwise again to close the valve. In this way, the staff only needs to hold the closing handle 5 tightly during the entire process of closing the valve.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety fire damper, characterized in that: The invention comprises a valve body (1), wherein the valve body (1) is installed and connected to a gas pipeline via connecting flanges (2) at left and right ends, a spring (8) is installed at an inner position of the valve body (1), a ball (6) for controlling the flow of a fluid is installed at an inner position of the valve body (1), a lower bearing (7) is arranged at the lower end of the ball (6), a ball (6) is arranged at the upper end of the ball (6), the ball (6) can be opened and closed via a valve stem (4) at the upper end, and the valve stem (4) can be opened and closed via a closing spring (7) installed at an outer position. The ball (6) is controlled to rotate by a handle (5) and an opening handle (3); a ball (10) is installed on the inner side of the closing handle (5) at the upper and lower positions; a fixing plate (12) is fixed on the inner side of the closing handle (5); a plurality of protruding mechanisms (11) are distributed on the outer wall of the valve stem (4); a rotating shaft (13) is arranged on the inner side of the closing handle (5); a torsion spring (15) is wound on the outer side of the rotating shaft (13); and a clamping device (14) capable of angular rotation is installed on the outer side of the rotating shaft (13).

2. A safety fire damper according to claim 1, characterized in that: The closing handle (5) and the opening handle (3) rotate in opposite directions, and the closing handle (5) and the opening handle (3) control the opening and closing of the fluid in the valve body (1) through the valve stem (4).

3. A safety fire damper according to claim 2, characterized in that: The rotation of the valve stem (4) causes the ball (6) to rotate at an internal position of the valve body (1), and the rotation of the ball (6) is performed with the upper bearing (9) and the lower bearing (7) as the central axis.

4. A safety fire damper according to claim 2, characterized in that: The valve body (1) is installed with the gas pipeline via a connecting flange (2) so that the gas can flow through from an internal position.

5. A safety fire damper according to claim 2, characterized in that: The closing handle (5) is rotated so that the clamping device (14) touches the protruding mechanism (11) in the valve stem (4), and the clamping device (14) generates an angular rotation when touching the protruding mechanism (11).

6. A safety fire damper according to claim 5, characterized in that: The clamping device (14) rotates with the rotating shaft (13) as the central axis, and the rotation of the clamping device (14) causes compression on the torsion spring (15).

7. A safety fire damper according to claim 6, characterized in that: The torsion spring (15) releases elastic energy after the clamping device (14) is out of contact with the protruding mechanism (11), thereby resetting the clamping device (14).

8. A safety fire damper according to claim 7, characterized in that: The fixing plate (12) is fitted on one end surface of the clamping device (14) so ​​that the closing handle (5) and the opening handle (3) can close and open the valve.

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