Verification cabinet for combustible gas detection alarm

Abstract

The utility model relates to the technical field of alarm verification, and discloses a verification cabinet for a combustible gas detection alarm, the verification cabinet comprises a cabinet body, a cabinet door, a detection plate, a clamping assembly and a wiring assembly, the front side of the cabinet body is of an opening structure, the cabinet door is rotatably installed on the front side wall of the cabinet body through a hinge, the detection plate is fixedly installed in the cabinet body, and the clamping assembly is installed on the front side wall of the cabinet body. The number of the clamping assemblies is two, the number of the wiring assemblies is multiple, the two clamping assemblies and the multiple wiring assemblies are all arranged on the detection plate, the clamping assemblies are used for clamping and fixing multiple combustible gas detection alarms at the same time, and the wiring assemblies are used for wiring and electrifying the clamped and fixed combustible gas detection alarms. A supporting frame is fixedly installed on the outer wall of the left side of the cabinet body. The combustible gas detection alarm verification device has the following advantages and effects that a plurality of combustible gas detection alarms can be verified at the same time, operation is convenient, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of alarm calibration, and in particular to a calibration cabinet for a combustible gas detection alarm. Background Art

[0002] The combustible gas detection alarm is a safety device that can detect the concentration of combustible gas in the air. It consists of a detector and an alarm control host. It is widely used in petroleum, gas, chemical, oil depot and other petrochemical industries where toxic gases exist to detect leaks in indoor and outdoor hazardous places. To ensure the normal alarm function of the combustible gas detection alarm, the combustible gas detection alarm needs to be calibrated during production and use. In order to facilitate the calibration of the various performances of the combustible gas detection alarm, the combustible gas detection alarm is usually set in the corresponding calibration cabinet;

[0003] In the related art, when a calibration cabinet is used to calibrate combustible gas detection alarms, usually only combustible gas detection alarms can be calibrated one by one, and it is not convenient to calibrate multiple combustible gas detection alarms at the same time. The operation process is cumbersome, time-consuming and labor-intensive, and the work efficiency is relatively low.

[0004] Therefore, we propose a calibration cabinet for combustible gas detection alarm to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide a calibration cabinet for a combustible gas detection alarm, which can calibrate multiple combustible gas detection alarms at the same time, is easy to operate, saves time and effort, and improves work efficiency.

[0006] The above-mentioned technical purpose of the present application is achieved through the following technical solutions: a calibration cabinet for a combustible gas detection alarm, comprising a cabinet body, a cabinet door, a detection plate, a clamping assembly and a wiring assembly, the front side of the cabinet body is an open structure, the cabinet door is rotatably installed on the front side wall of the cabinet body by hinges, the detection plate is fixedly installed in the cabinet body, the number of clamping assemblies is set to two, the number of wiring assemblies is set to multiple, two clamping assemblies and multiple wiring assemblies are all arranged on the detection plate, the clamping assembly is used to clamp and fix multiple combustible gas detection alarms at the same time, the wiring assembly is used to wire and energize the clamped and fixed combustible gas detection alarms, a support frame is fixedly installed on the left outer wall of the cabinet body, a combustible gas storage bottle is fixedly installed on the support frame, combustible gas is stored in the combustible gas storage bottle, the top of the combustible gas storage bottle is fixedly connected with an air intake pipe, one end of the air intake pipe extends into the cabinet body, and a first one-way solenoid valve is fixedly installed on the air intake pipe.

[0007] The present application is further configured as follows: the combustible gas storage bottle is fixedly connected with a gas supply pipe joint, and a manual stop valve is fixedly installed on the gas supply pipe joint.

[0008] The present application is further configured as follows: the clamping assembly includes a fixed plate, a fixed beam, a transverse axis, a pull handle, a movable plate, a spring, a plurality of first support bottom plates and a plurality of second support bottom plates, the fixed plate and the fixed beam are both fixedly mounted on the front side wall of the detection plate, one end of the transverse axis slides through the fixed beam, the pull handle is fixedly mounted on the end of the transverse axis away from the fixed plate, the movable plate is fixedly mounted on the end of the transverse axis close to the fixed plate, the spring is sleeved on the transverse axis and located between the movable plate and the fixed beam, the two ends of the spring are respectively fixedly connected to the movable plate and the fixed beam, the plurality of first support bottom plates are all fixedly mounted on a side of the fixed plate close to the movable plate and are distributed at equal intervals, the plurality of second support bottom plates are all fixedly mounted on a side of the movable plate close to the fixed plate and are distributed at equal intervals, and the plurality of first support bottom plates are respectively in conflict with the corresponding second support bottom plates.

[0009] The present application is further configured as follows: the rear side wall of the movable plate is in sliding contact with the front side wall of the detection plate.

[0010] The present application is further configured as follows: the wiring assembly includes a wire box, a wire and a conductive wire clamp, the wire box is fixedly mounted on a side wall of the fixed plate away from the movable plate, the wire is electrically connected to the wire box, and the conductive wire clamp is fixedly mounted on one end of the wire.

[0011] The present application is further configured as follows: the number of the conductive wires and conductive clips is set to at least two.

[0012] The present application is further configured as follows: a wiring main power switch is fixedly mounted on the front side wall of the detection board, and a plurality of wiring components are electrically connected in parallel with the wiring main power switch via wires.

[0013] The present application is further configured as follows: a combustible gas concentration detection probe is fixedly installed on the top inner wall of the cabinet.

[0014] The present application is further configured as follows: a vacuum pump is fixedly installed on the right outer wall of the cabinet, a vacuum pipe is fixedly installed on the suction end of the vacuum pump, one end of the vacuum pipe extends into the cabinet, a second one-way solenoid valve is fixedly installed on the vacuum pipe, and an exhaust pipe is fixedly installed on the discharge end of the vacuum pump.

[0015] The present application is further configured as follows: a visual window is provided on the cabinet door, and a transparent tempered glass mirror is fixedly installed in the visual window.

[0016] The present application includes at least one of the following beneficial technical effects:

[0017] 1. The present application can simultaneously clamp and fix multiple combustible gas detection alarms by utilizing a clamping assembly consisting of a fixed plate, a fixed beam, a horizontal axis, a pull handle, a movable plate, a spring, a plurality of first supporting base plates, and a plurality of second supporting base plates.

[0018] 2. The present application utilizes a wiring assembly consisting of a wiring box, a wire and a conductive wire clip. With the joint use of multiple wiring assemblies and in conjunction with the use of a wiring main power switch, it is possible to conveniently energize multiple clamped and fixed combustible gas detection alarms, then close the cabinet door, turn on the combustible gas concentration detection probe, open the first one-way solenoid valve, and allow the combustible gas in the combustible gas storage bottle to enter the cabinet through the air inlet pipe. After the combustible gas concentration detection probe detects that the combustible gas concentration inside the cabinet is appropriate, the first one-way solenoid valve is closed. At this time, observe whether multiple combustible gas detection alarms sound an alarm. If all combustible gas detection alarms sound an alarm, it means that all of these combustible gas detection alarms are qualified. If there are combustible gas detection alarms that do not sound an alarm, it means that the combustible gas detection alarms that did not sound an alarm are unqualified.

[0019] 3. This application utilizes the combined effects of an exhaust pump, an exhaust pipe, a second one-way solenoid valve and an exhaust pipe to extract the combustible gas inside the cabinet after the calibration of multiple combustible gas detection alarms is completed, and then the cabinet door can be opened to safely take out the combustible gas detection alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0021] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0022] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0023] In the figure, 1. cabinet body; 2. cabinet door; 3. detection board; 4. support frame; 5. combustible gas storage bottle; 6. air inlet pipe; 7. first one-way solenoid valve; 8. manual stop valve; 9. air supply pipe joint; 10. fixed plate; 11. fixed beam; 12. horizontal axis; 13. pull handle; 14. movable plate; 15. spring; 16. first supporting bottom plate; 17. second supporting bottom plate; 18. junction box; 19. wire; 20. conductive wire clamp; 21. main power switch for wiring; 22. combustible gas concentration detection probe; 23. vacuum pump; 24. vacuum pipe; 25. second one-way solenoid valve; 26. exhaust pipe; 27. transparent tempered glass mirror. DETAILED DESCRIPTION

[0024] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0025] See also Figure 1 , Figure 2 and Figure 3 The present application provides a test cabinet for a combustible gas detection alarm, including a cabinet 1, a cabinet door 2, a detection board 3, a clamping assembly and a wiring assembly. The front side of the cabinet 1 is an open structure. The cabinet door 2 is rotatably installed on the front side wall of the cabinet 1 through a hinge. The cabinet door 2 is used to seal the front opening of the cabinet 1. The detection board 3 is fixedly installed in the cabinet 1. The number of clamping assemblies is set to two, and the number of wiring assemblies is set to multiple. Two clamping assemblies and multiple wiring assemblies are all arranged on the detection board 3. The clamping assembly is used to clamp and fix at the same time. There are multiple combustible gas detection alarms, and the wiring assembly is used to connect and energize the clamped and fixed combustible gas detection alarms. A support frame 4 is fixedly installed on the left outer wall of the cabinet 1, and a combustible gas storage bottle 5 is fixedly installed on the support frame 4. The combustible gas storage bottle 5 stores combustible gas. The top of the combustible gas storage bottle 5 is fixedly connected to an air intake pipe 6, and one end of the air intake pipe 6 extends into the cabinet 1. A first one-way solenoid valve 7 is fixedly installed on the air intake pipe 6. By opening the first one-way solenoid valve 7, the combustible gas in the combustible gas storage bottle 5 can be controlled.

[0026] In this embodiment, the combustible gas storage bottle 5 is fixedly connected to a gas supply pipe joint 9 , and a manual stop valve 8 is fixedly installed on the gas supply pipe joint 9 to facilitate the filling of the combustible gas into the combustible gas storage bottle 5 .

[0027] In this embodiment, the clamping assembly includes a fixed plate 10, a fixed beam 11, a transverse axis 12, a pull handle 13, a movable plate 14, a spring 15, a plurality of first support bottom plates 16 and a plurality of second support bottom plates 17. The fixed plate 10 and the fixed beam 11 are fixedly mounted on the front side wall of the detection plate 3, one end of the transverse axis 12 slides through the fixed beam 11, the pull handle 13 is fixedly mounted on the end of the transverse axis 12 away from the fixed plate 10, the movable plate 14 is fixedly mounted on the end of the transverse axis 12 close to the fixed plate 10, the rear side wall of the movable plate 14 is in sliding contact with the front side wall of the detection plate 3, the spring 15 is sleeved on the transverse axis 12 and is located between the movable plate 14 and the fixed beam 11, the two ends of the spring 15 are fixedly connected to the movable plate 14 and the fixed beam 11 respectively, the plurality of first support bottom plates 16 are fixedly mounted on the side of the fixed plate 10 close to the movable plate 14 and are evenly spaced. The second supporting bottom plates 17 are all fixedly installed on the side of the movable plate 14 close to the fixed plate 10 and are distributed at equal intervals, and multiple first supporting bottom plates 16 are respectively in conflict with the corresponding second supporting bottom plates 17. By pulling the pull handle 13, the pull handle 13 can drive the horizontal axis 12, the movable plate 14 and multiple second supporting bottom plates 17 to move horizontally and linearly, so that the distance between the fixed plate 10 and the movable plate 14 can be adjusted. By utilizing the elastic force of the spring 15, multiple combustible gas detection alarms can be clamped and fixed between the fixed plate 10 and the movable plate 14 at the same time. By utilizing the first supporting bottom plate 16 and the second supporting bottom plate 17 on the same horizontal plane to contact the bottom of the combustible gas detection alarm, the combustible gas detection alarm can be supported, which can improve the stability of the combustible gas detection alarm when clamped and fixed, and it will not fall during the calibration.

[0028] In this embodiment, a wiring main power switch 21 is fixedly installed on the front side wall of the detection board 3. Multiple wiring components are electrically connected in parallel with the wiring main power switch 21 through wires. The wiring main power switch 21 is electrically connected to an external power supply. By turning on the wiring main power switch 21, multiple wiring components can be controlled to be powered on at the same time. By turning off the wiring main power switch 21, multiple wiring components can be controlled to be powered off at the same time. The wiring components include a wire box 18, a wire 19 and a conductive wire clamp 20. The wire box 18 is fixedly installed on a side wall of the fixed plate 10 away from the movable plate 14. The wire 19 is electrically connected to the wire box 18. The conductive wire clamp 20 is fixedly installed at one end of the wire 19. The conductive wire clamp 20 can be used to quickly clamp the wiring head of the combustible gas detection alarm.

[0029] In this embodiment, the number of wires 19 and conductive wire clips 20 is set to at least two. The wires 19 can be set to two or three as needed. When two wires 19 are set, the two wires 19 are respectively connected to the positive and negative poles of the power supply. When three wires 19 are set, two of the wires 19 are respectively connected to the positive and negative poles of the power supply, and the other wire 19 is connected to the ground wire.

[0030] In this embodiment, a combustible gas concentration detection probe 22 is fixedly installed on the top inner wall of the cabinet 1 , and the combustible gas concentration detection probe 22 is used to detect the combustible gas concentration inside the cabinet 1 .

[0031] In this embodiment, a vacuum pump 23 is fixedly installed on the right outer wall of the cabinet 1, and a vacuum pipe 24 is fixedly installed on the suction end of the vacuum pump 23. One end of the vacuum pipe 24 extends into the cabinet 1, and a second one-way solenoid valve 25 is fixedly installed on the vacuum pipe 24. An exhaust pipe 26 is fixedly installed on the discharge end of the vacuum pump 23. The vacuum pump 23 can be used to extract the combustible gas inside the cabinet 1, and then after the calibration of multiple combustible gas detection alarms is completed, the cabinet door 2 can be opened to safely remove the combustible gas detection alarm. It should be noted that the end of the exhaust pipe 26 away from the vacuum pump 23 is connected to the entrance end of an external combustible gas recovery device, and the combustible gas recovery device can be used to recover the combustible gas.

[0032] In this embodiment, a visual window is provided on the cabinet door 2 , and a transparent tempered glass mirror 27 is fixedly installed in the visual window, so as to facilitate observation of the calibration status of multiple combustible gas detection alarms inside the cabinet 1 .

[0033] In this embodiment, it should be supplemented that a controller is installed on the right outer wall of the cabinet 1, and a display screen and multiple control buttons are provided on the controller. The first one-way solenoid valve 7, the combustible gas concentration detection probe 22, the second one-way solenoid valve 25 and the controller are electrically connected to the external power supply through wires, and the multiple control buttons can respectively control the first one-way solenoid valve 7, the combustible gas concentration detection probe 22, and the second one-way solenoid valve 25 to power on and operate, and the data detected by the combustible gas concentration detection probe 22 can be displayed on the display screen.

[0034] Through the above structure, the calibrating cabinet for combustible gas detection alarm provided by the present application can calibrate multiple combustible gas detection alarms at the same time when in use, which is convenient to operate, saves time and effort, and improves work efficiency. During the specific operation, the cabinet door 2 is opened, and the handle 13 is pulled to move horizontally and linearly in the direction away from the fixed beam 11. The handle 13 drives the horizontal axis 12, the movable plate 14 and multiple second supporting bottom plates 17 to move. At this time, the spring 15 is gradually compressed to generate elastic force, so that there is a suitable spacing between the movable plate 14 and the fixed plate 10 (slightly larger than the combustible gas detection alarm When the width of the combustible gas detection alarm is 20, the multiple combustible gas detection alarms can be placed on the multiple first supporting base plates 16 in sequence, and then the pull handle 13 is released. Under the elastic force of the spring 15, the movable plate 14 and the multiple second supporting base plates 17 can be controlled to automatically reset, that is, the clamping and fixing of the multiple combustible gas detection alarms are completed at the same time, and then the conductive wire clamp 20 is clamped on the corresponding combustible gas detection alarm wiring head. After the multiple combustible gas detection alarms are connected, the wiring main power switch 21 is turned on, that is, the multiple combustible gas detection alarms are powered on, and then Close the cabinet door 2, open the combustible gas concentration detection probe 22, open the first one-way solenoid valve 7, and keep the second one-way solenoid valve 25 closed. The combustible gas in the combustible gas storage bottle 5 enters the cabinet 1 through the air inlet pipe 6. After the combustible gas concentration detection probe 22 detects that the combustible gas concentration inside the cabinet 1 is appropriate, close the first one-way solenoid valve 7. At this time, observe whether multiple combustible gas detection alarms sound an alarm. If all combustible gas detection alarms sound an alarm, it means that these combustible gas detection alarms are all qualified. If there is no alarm, it means that these combustible gas detection alarms are qualified. If the combustible gas detection alarm reports a fire, it means that the combustible gas detection alarm that did not issue an alarm is unqualified. After the combustible gas detection alarm is calibrated, open the second one-way solenoid valve 25 and start the vacuum pump 23 to extract the combustible gas inside the cabinet 1, then open the cabinet door 2, first turn off the main power switch 21, remove the multiple conductive wire clips 20 in turn, and then pull the handle 13 to move horizontally to take out the multiple combustible gas detection alarms in turn. According to the above operating steps, the next batch of combustible gas detection alarms can be calibrated.

Claims

1. A calibration cabinet for a combustible gas detection alarm, characterized in that: The invention comprises a cabinet (1), a cabinet door (2), a detection board (3), a clamping assembly and a wiring assembly, wherein the front side of the cabinet (1) is an open structure, the cabinet door (2) is rotatably mounted on the front side wall of the cabinet (1) by means of hinges, the detection board (3) is fixedly mounted in the cabinet (1), the number of the clamping assemblies is set to two, the number of the wiring assemblies is set to multiple, the two clamping assemblies and the multiple wiring assemblies are all arranged on the detection board (3), and the clamping assembly is used to simultaneously clamp and fix multiple combustible gas detection Alarm, the wiring assembly is used to connect and energize the clamped and fixed combustible gas detection alarm, a support frame (4) is fixedly installed on the left outer wall of the cabinet (1), a combustible gas storage bottle (5) is fixedly installed on the support frame (4), combustible gas is stored in the combustible gas storage bottle (5), the top of the combustible gas storage bottle (5) is fixedly connected to an air intake pipe (6), one end of the air intake pipe (6) extends into the cabinet (1), and a first one-way solenoid valve (7) is fixedly installed on the air intake pipe (6).

2. The test cabinet for combustible gas detection alarm according to claim 1 is characterized in that: The combustible gas storage bottle (5) is fixedly connected to a gas supply pipe joint (9), and a manual stop valve (8) is fixedly installed on the gas supply pipe joint (9).

3. The test cabinet for combustible gas detection alarm according to claim 1 is characterized in that: The clamping assembly comprises a fixed plate (10), a fixed beam (11), a transverse axis (12), a pull handle (13), a movable plate (14), a spring (15), a plurality of first supporting base plates (16) and a plurality of second supporting base plates (17); the fixed plate (10) and the fixed beam (11) are both fixedly mounted on the front side wall of the detection plate (3); one end of the transverse axis (12) slides through the fixed beam (11); the pull handle (13) is fixedly mounted on an end of the transverse axis (12) away from the fixed plate (10); and the movable plate (14) is fixedly mounted on an end of the transverse axis (12) close to the fixed plate (10). At one end, the spring (15) is sleeved on the transverse axis (12) and is located between the movable plate (14) and the fixed beam (11); the two ends of the spring (15) are respectively fixedly connected to the movable plate (14) and the fixed beam (11); a plurality of the first supporting bottom plates (16) are all fixedly mounted on a side of the fixed plate (10) close to the movable plate (14) and are distributed at equal intervals; a plurality of the second supporting bottom plates (17) are all fixedly mounted on a side of the movable plate (14) close to the fixed plate (10) and are distributed at equal intervals; and a plurality of the first supporting bottom plates (16) are respectively in contact with the corresponding second supporting bottom plates (17).

4. The test cabinet for the combustible gas detection alarm according to claim 3 is characterized in that: The rear side wall of the movable plate (14) is in sliding contact with the front side wall of the detection plate (3).

5. The test cabinet for the combustible gas detection alarm according to claim 3 is characterized in that: The wiring assembly comprises a wiring box (18), a wire (19) and a conductive wire clamp (20); the wiring box (18) is fixedly mounted on a side wall of the fixed plate (10) away from the movable plate (14); the wire (19) is electrically connected to the wiring box (18); and the conductive wire clamp (20) is fixedly mounted on one end of the wire (19).

6. The test cabinet for combustible gas detection alarm according to claim 5 is characterized in that: The number of the conductive wires (19) and conductive wire clips (20) is set to at least two.

7. The test cabinet for the combustible gas detection alarm according to claim 6 is characterized in that: A wiring main power switch (21) is fixedly mounted on the front side wall of the detection plate (3), and a plurality of wiring assemblies are electrically connected in parallel to the wiring main power switch (21) via electric wires.

8. The test cabinet for the combustible gas detection alarm according to claim 1 is characterized in that: A combustible gas concentration detection probe (22) is fixedly mounted on the top inner wall of the cabinet (1).

9. The test cabinet for combustible gas detection alarm according to claim 1 is characterized in that: An air pump (23) is fixedly mounted on the right outer wall of the cabinet (1); an air suction pipe (24) is fixedly mounted on the suction end of the air pump (23); one end of the air suction pipe (24) extends into the cabinet (1); a second one-way solenoid valve (25) is fixedly mounted on the air suction pipe (24); and an exhaust pipe (26) is fixedly mounted on the discharge end of the air pump (23).

10. The test cabinet for combustible gas detection alarm according to claim 1, characterized in that: The cabinet door (2) is provided with a visual window, and a transparent tempered glass mirror (27) is fixedly installed in the visual window.

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