Monitoring device and fire detection tube fire extinguishing device thereof

Abstract

The utility model provides a monitoring device which comprises a manual opening and closing valve and a monitoring unit used for monitoring the opening state of the manual opening and closing valve. Through the monitoring unit which is arranged on the manual opening and closing valve and used for monitoring the opening state of the manual opening and closing valve, as long as the manual opening and closing valve is monitored to be at the opening position, the control unit is considered to be in a normal working state; once the manual opening and closing valve is monitored to be in a non-opening position, the control unit is considered to be in a fault state; in this way, it is ensured that the manual opening and closing valve is located at the completely-opened position in the normal working state, and the problem that in the prior art, opening is forgotten after maintenance is solved; the manual opening and closing valve is applied to a fire detection tube fire extinguishing device, and the problem that the device cannot work normally due to the fact that the manual opening and closing valve is forgotten to be opened after the fire detection tube fire extinguishing device is installed or maintained can be solved; or the fire extinguishing agent of the fire extinguishing device of the fire detection tube is sprayed by mistake when the fire detection tube forgets to close the manual opening and closing valve during maintenance and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, and specifically discloses a monitoring device and a fire-detecting pipe fire-extinguishing device thereof, and in particular relates to a monitoring device for monitoring the opening state of a manual opening and closing valve and a fire-detecting pipe fire-extinguishing device thereof. Background Art

[0002] The fire-detection tube fire-extinguishing device includes a pressure vessel for storing fire extinguishing agent, a fire detection valve, a manual on-off valve, and a fire detection tube. It is a simple, low-cost, and highly reliable independent automatic fire-extinguishing system. It does not require any power supply or special smoke or temperature detectors. It utilizes the pressure storage of the pressure vessel itself. When the fire detection tube ruptures due to heat, the pressure imbalance between the upper and lower chambers of the piston in the fire detection valve opens, releasing the fire extinguishing agent from the fire extinguishing agent storage pressure vessel, through the fire detection valve, and then through the opened manual on-off valve through the fire detection tube, immediately releasing the fire extinguishing agent to extinguish the fire.

[0003] Currently, the outlet of the fire detection valve of the fire detection tube fire extinguishing device on the market is equipped with a manual opening and closing valve with a trigger handle. After the fire detection tube is installed, the manual opening and closing valve is opened to put the fire detection tube fire extinguishing device into normal operation. At the same time, a limit clamp is provided at the closed position of the trigger handle of the manual opening and closing valve to prevent the fire extinguishing agent from being accidentally opened during installation of the fire detection tube and causing accidental spraying of the fire extinguishing agent. However, after the fire detection tube fire extinguishing device is installed or repaired, it is still possible that the manual opening and closing valve is forgotten to be opened, causing the fire detection tube fire extinguishing device to malfunction; or the manual opening and closing valve is forgotten to be closed when the fire detection tube is repaired or replaced, causing the fire extinguishing agent of the fire detection tube fire extinguishing device to be accidentally sprayed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a monitoring device and a fire detection tube fire extinguishing device thereof, which can monitor the opening status of a manual opening and closing valve in real time, feedback an alarm signal for abnormal opening and closing of the valve, and remind relevant personnel to handle it to avoid casualties and property losses.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a monitoring device, comprising a manual opening and closing valve; and a monitoring unit, wherein the monitoring unit is arranged on the manual opening and closing valve for monitoring the opening state thereof.

[0006] Preferably, the monitoring unit includes a position sensor and a fixing unit for specifically monitoring the opening state of the manual opening and closing valve, and a control unit electrically connected to the position sensor.

[0007] Preferably, the position sensor is a mechanical or electromagnetic micro switch.

[0008] Preferably, the manual opening and closing valve is opened and closed by a lever handle.

[0009] Preferably, the mechanical micro switch is a normally closed contact or normally open contact mechanical micro switch.

[0010] The U-shaped lever handle limit bracket is respectively fixed to the bracket mounting column and the rear nut by the two transverse fastening bolts, and the U-shaped lever handle limit bracket is fixed to the manual opening and closing valve, and the lever handle of the manual opening and closing valve is clamped by the groove at the upper left end of the U-shaped lever handle limit bracket; the left end of the mechanical micro switch bracket is placed on the right top end of the U-shaped lever handle limit bracket, and the single hole supported by the bottom end of the right end of the mechanical micro switch bracket passes through one end of the external thread of the bracket mounting column, and the front nut is tightened at its outer end; the mechanical micro switch is fixed to the mechanical micro switch bracket by two longitudinal fixing bolts, and when the manual opening and closing valve is opened, its lever handle presses the mechanical micro switch spring sheet.

[0011] The utility model also provides a fire detection tube fire extinguishing device, which includes any one of the above-mentioned monitoring devices.

[0012] Preferably, the fire detection tube fire extinguishing device also includes a fire extinguishing agent storage pressure container, a fire detection valve, and a fire detection tube connected to the manual opening and closing valve outlet in the monitoring device.

[0013] The utility model provides a monitoring device, which is provided with a monitoring unit on the manual opening and closing valve for monitoring the opening state thereof. As long as the manual opening and closing valve is monitored to be in the open position, the control unit regards it as a normal working state; once the manual opening and closing valve is monitored to be in the non-open position, the control unit regards it as a fault state; in this way, it is ensured that the manual opening and closing valve is in the fully open position under the normal working state, solving the problem of forgetting to open it after maintenance in the prior art; it will be applied to the fire detection tube fire extinguishing device, which can solve the problem that after the fire detection tube fire extinguishing device is installed or repaired, the manual opening and closing valve is forgotten to be opened, resulting in the device not being able to work normally; or the problem that the fire detection tube fire extinguishing device fails to spray the fire extinguishing agent by mistake due to the situation that the manual opening and closing valve is forgotten to be closed when the fire detection tube is repaired and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a structural explosion diagram of a fire detection valve and a monitoring device in a fire detection tube fire extinguishing device;

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of the assembly structure of the fire detection valve and the monitoring device shown;

[0016] Figure 3 for Figure 1 A schematic top view of the assembly structure of the fire detection valve and monitoring device in the open state is shown;

[0017] Figure 4 for Figure 1 A schematic top view of the assembly structure of the fire detection valve and monitoring device in a closed state is shown;

[0018] Figure 5 for Figure 1 The three-dimensional structural diagram of the U-shaped lever handle limit bracket shown;

[0019] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the mechanical micro switch bracket shown;

[0020] Figure 7 for Figure 1 The three-dimensional structural diagram of the bracket mounting column is shown.

[0021] Description of the numbers in the accompanying drawings:

[0022] 1---Fire detection valve, 2---Manual opening and closing valve with lever handle, 3---Monitoring device, 301---Mechanical micro switch, 302---Mechanical micro switch bracket, 303---U-shaped lever handle limit bracket, 304---Bracket mounting column, 305---Horizontal fastening bolt, 306---Longitudinal fastening bolt, 307---Front nut, 308---Rear nut. DETAILED DESCRIPTION

[0023] In order to better understand the purpose, structure and function of the present invention, the following, in conjunction with the accompanying drawings, takes a manual opening and closing valve with a trigger handle as an example to further describe in detail a monitoring device for monitoring the opening state of a manual opening and closing valve and its fire detection tube fire extinguishing device of the present invention.

[0024] The following describes the technical solutions of the present invention in further detail with reference to the accompanying drawings. However, the present invention is not limited to these embodiments. In describing the embodiments of the present invention, it should be noted that the terms "upper," "lower," "front," "back," "left," and "right" and the like, indicating directions or positions, are based on the directions or positions shown in the accompanying drawings. These terms are used solely for the convenience and simplicity of describing the present invention.

[0025] Figure 1 and Figure 2 As shown, the monitoring device provided by the present invention includes the manual opening and closing valve 2 with a trigger handle and a monitoring unit 3 provided thereon for monitoring the opening state thereof.

[0026] Figure 1 and Figure 2 As shown, the utility model also provides a fire detection pipe fire extinguishing device for monitoring the opening state of a manual opening and closing valve, comprising a pressure vessel for storing a fire extinguishing agent and a fire detection valve 1 installed at its outlet, a manual opening and closing valve 2 with a trigger handle provided at the outlet of the fire detection valve 1, a fire detection pipe provided at the outlet of the manual opening and closing valve 2, and a monitoring unit 3 for monitoring the opening state of the manual opening and closing valve.

[0027] The monitoring unit for monitoring the opening state of the manual opening and closing valve includes a position sensor and a fixing unit for specifically monitoring the opening state of the manual opening and closing valve, and a control unit (not shown in the figure) electrically connected to the position sensor; the position sensor is a mechanical micro switch 301.

[0028] The fixing unit includes a mechanical micro switch bracket 302, a U-shaped trigger handle limit bracket 303, a bracket mounting column 304, two transverse fastening bolts 305, two longitudinal fastening bolts 306, a front nut 307 and a rear nut 308; wherein the bracket mounting column 304 has an internal thread at one end and an external thread at the other end.

[0029] The U-shaped lever handle limit bracket 303 is put on the outside of the manual opening and closing valve 2 from bottom to top, and the U-shaped lever handle limit bracket 303 is fixed to the manual opening and closing valve 2 through two horizontal fastening bolts 305, the bracket mounting column 304, and the rear nut 308, and the lever handle of the manual opening and closing valve 2 is clamped through the groove at the upper left end of the U-shaped lever handle limit bracket 303 (i.e. closed state); the left end of the mechanical micro switch bracket 302 is placed on the right top end of the U-shaped lever handle limit bracket 303, and the single hole supported by the bottom end of the right end of the mechanical micro switch bracket 302 passes through one end of the external thread of the bracket mounting column, and the front nut is tightened at its outer end; the mechanical micro switch 301 is fixed to the mechanical micro switch bracket 302 by two longitudinal fixing bolts 306. When the manual opening and closing valve 2 is opened, its lever handle presses the spring sheet of the mechanical micro switch 301 (i.e. open state).

[0030] Working principle:

[0031] When the fire extinguishing device needs to be opened, the handle of the manual opening and closing valve 2 is turned to Figure 3 In the position shown, the trigger handle will press against the spring sheet of the mechanical micro switch 301, so that the contact of the mechanical micro switch is pressed, that is, its switch contact is closed;

[0032] When the fire extinguishing device valve is closed, the handle of the manual opening and closing valve 2 returns to the Figure 4 In the position shown, the spring piece of the mechanical micro switch 301 returns to its initial state, that is, its switch contact is disconnected;

[0033] Even if the handle of the manual opening and closing valve 2 is turned to Figure 3 and Figure 4 At any intermediate position between the positions shown, as long as the trigger handle is not the switch contact of the mechanical micro switch 301 closed, including the switch contact being open, it indicates that the fire extinguishing device is not in the open state, and the control unit indicates that it is in the open state.

[0034] Therefore, as long as the trigger handle of the monitoring manual opening and closing valve 2 is in the open position, the control unit considers that the device is in a normal working state; once the trigger handle of the monitoring manual opening and closing valve 2 is in the non-open position, the control unit considers that the device is in a fault state; in this way, after the fire detection tube fire extinguishing device is installed, if the manual opening and closing valve is forgotten to be opened, the control unit considers that the device is in a fault state, and promptly sends an abnormal device signal to remind personnel to deal with it in time, that is, to open the manual opening and closing valve, thereby ensuring the normal operation of the device; if the manual opening and closing valve is forgotten to be closed when the fire detection tube is repaired and replaced, the maintenance personnel will check that the control unit indicates that the device is in a normal working state, and remind the maintenance personnel to close the manual opening and closing valve, so that the control unit indicates that the device is in a fault state, thereby preventing the fire extinguishing agent from being accidentally sprayed when the fire detection tube is repaired and replaced.

[0035] The mechanical micro switch 301 in the present invention is a normally open contact mechanical micro switch or a normally closed contact mechanical micro switch.

[0036] The trigger handle in the present invention may adopt other manual mechanical structures, such as a circular rotating handle.

[0037] The inventive point of the present utility model is that a monitoring unit for the opening and closing state of the manual opening and closing valve is provided, and the opening / closing state of the manual opening and closing valve is monitored by monitoring its opening state. The mechanical microswitch of the present utility model is not limited to the microswitch based on the mechanical principle of a spring sheet, and can be other types of position sensors, such as an electromagnetic (electromagnetic proximity) position sensor or a microswitch, as long as it can solve the technical problem of the present utility model patent, play the same role, and produce the same effect. In addition, the fixing device for fixing the position sensor to the manual opening and closing valve is not limited to the above-mentioned specific structure, as long as the position sensor can be used to monitor the opening state of the manual opening and closing valve. Here, the claims describe the scope of protection of the present utility model, but any variation scheme that includes the inventive point of the present utility model and does not deviate from the purpose of the present invention falls within the scope of protection of the present utility model.

Claims

1. A monitoring device comprising: A manual opening and closing valve; It is characterized in that it also includes a monitoring unit, which is arranged on the manual opening and closing valve to monitor its opening state.

2. The monitoring device according to claim 1, wherein: The monitoring unit includes a position sensor and a fixing unit for specifically monitoring the opening state of the manual opening and closing valve, and a control unit electrically connected to the position sensor.

3. The monitoring device according to claim 2, wherein: The position sensor is a mechanical or electromagnetic micro switch.

4. The monitoring device according to claim 3, wherein: The manual opening and closing valve is opened and closed by a lever handle.

5. The monitoring device according to claim 3 or 4, characterized in that: The mechanical micro switch is a normally closed contact or normally open contact mechanical micro switch.

6. The monitoring device according to claim 5, characterized in that: The fixing unit includes a mechanical microswitch bracket, a U-shaped trigger handle limit bracket, a bracket mounting column, two transverse fastening bolts, two longitudinal fastening bolts, a front nut and a rear nut; wherein one end of the bracket mounting column has an internal thread and the other end has an external thread; the U-shaped trigger handle limit bracket is sleeved on the outside of the manual opening and closing valve from bottom to top, and the U-shaped trigger handle limit bracket is fixed to the manual opening and closing valve through the two transverse fastening bolts and the bracket mounting column and the rear nut respectively, and the trigger handle of the manual opening and closing valve is clamped through the groove at the upper left end of the U-shaped trigger handle limit bracket; the left end of the mechanical microswitch bracket is placed on the right top end of the U-shaped trigger handle limit bracket, and the single hole supported by the bottom end of the right end of the mechanical microswitch bracket passes through one end of the external thread of the bracket mounting column, and the front nut is tightened at its outer end; the mechanical microswitch is fixed to the mechanical microswitch bracket by two longitudinal fixing bolts. When the manual opening and closing valve is opened, its trigger handle presses the mechanical microswitch spring sheet.

7. A fire detection tube fire extinguishing device, characterized in that: The monitoring device comprises any one of claims 1-6.

8. The fire detection tube fire extinguishing device according to claim 7, characterized in that: The fire detection pipe fire extinguishing device also includes a fire extinguishing agent storage pressure container, a fire detection valve, and a fire detection pipe connected to the manual opening and closing valve outlet in the monitoring device.

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