Positive pressure anti-explosion cabinet safety monitoring device

Abstract

The safety monitoring device comprises a cabinet body, a temperature sensor is installed on the left side wall in the cabinet body, an alarm is installed on the right side of the top of the cabinet body, a box door is arranged on the front side of the cabinet body, a control panel is arranged on the front side of the box door, and a closing mechanism is arranged on the left side of the cabinet body. The closing mechanism comprises a through groove formed in the left side wall of the cabinet body, the cabinet body is provided with a sliding groove, and the sliding groove is located above the through groove. According to the safety monitoring device for the positive-pressure anti-explosion cabinet, two hydraulic rods are controlled to be started through a control panel, and matched with a straight toothed plate, a gear and a driving rod to drive a connecting rod to rotate, so that a baffle is driven to move, the baffle moves to drive a mounting rod and a rotating rod at the top and the bottom to rotate, and when the other end of the mounting rod rotates to the corner of the top of a through groove, the rotating rod rotates; and the baffle can block the ventilation plate, oxygen in the cabinet body can be isolated, the spark combustion trend is controlled, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positive pressure explosion proof cabinets, and in particular relates to a safety monitoring device for a positive pressure explosion proof cabinet. Background Art

[0002] With the rapid development of petrochemical, metal smelting, chemical pharmaceutical and other industries, explosion-proof positive pressure cabinets are used more and more widely in system control. Since electrical equipment will inevitably generate electric sparks or form hot surfaces when working, once they meet with explosive gas mixtures on site, they will cause explosions, directly endangering the property and life safety of users.

[0003] When a certain amount of flammable and explosive gases are mixed into the explosion-proof cabinet when in use, it is easy to cause a fire inside the explosion-proof cabinet due to the electric sparks generated when the switch is turned on or off, or when the temperature inside the explosion-proof cabinet is too high, a fire may also occur. The contact between open flame and gas may cause an explosion. Since the existing explosion-proof cabinet does not have the function of automatic fire extinguishing, the fire will not only damage the components inside the explosion-proof cabinet, but also cause harm to the staff, reducing the applicability of the device. Utility Model Content

[0004] The utility model aims to provide a positive pressure explosion-proof cabinet safety monitoring device to solve the technical problem that the existing explosion-proof cabinets mentioned in the background technology do not have the function of automatic fire extinguishing, and the fire will not only damage the components inside the explosion-proof cabinet, but also cause harm to the staff.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a positive pressure explosion-proof cabinet safety monitoring device, comprising a cabinet, a temperature sensor is installed on the left side wall inside the cabinet, an alarm is installed on the right side of the top of the cabinet, a cabinet door is opened on the front side of the cabinet, a control panel is arranged on the front side of the cabinet door, and a closing mechanism is arranged on the left side of the cabinet;

[0006] The cam is provided with a toothed plate at the top and a toothed plate at the bottom, and a gear is connected to the toothed plate at the bottom of the cam, and a gear is connected to the toothed plate at the bottom of the cam in turn.

[0007] Preferably, a storage box is fixedly connected to the left side of the top of the cabinet, a pump is installed on the top of the cabinet, and the right side of the storage box is connected to the left side of the pump by a hose, a spraying mechanism is provided on the top of the cabinet, and the right side of the pump is connected to the top of the spraying mechanism by a hose, and dry powder is placed inside the storage box, which can be used for fire extinguishing.

[0008] Preferably, two groups of the closing mechanisms are provided, and the two groups of the closing mechanisms are symmetrically arranged on the left and right sides of the cabinet relative to the center of the cabinet.

[0009] Preferably, ventilation plates are fixedly connected to the tops of the two through slots, the bottoms of the two ventilation plates are fixedly connected to the bottoms of the through slots, and the ventilation plates are located at the rear end of the No. 1 pillar.

[0010] Preferably, the No. 1 pillar, the No. 2 pillar, the rotating rod and the mounting rod are provided in four in total, and are symmetrically arranged in pairs at the left ends of the top and bottom of the baffle.

[0011] Preferably, there is a gap between the rotating rod and the mounting rod.

[0012] Preferably, the output end of the temperature sensor is electrically connected to the input end of the control panel through a wire, and the output end of the control panel is electrically connected to the wires of the alarm, two hydraulic rods and the pump through wires.

[0013] The utility model of a positive pressure explosion-proof cabinet safety monitoring device has the following advantages:

[0014] 1. A positive pressure explosion proof cabinet safety monitoring device controls two hydraulic rods to start through a control panel, cooperates with a spur plate, a gear and a driving rod to drive the connecting rod to rotate, thereby driving the baffle to move. The movement of the baffle drives the top and bottom mounting rods and the rotating rod to rotate. When the other end of the mounting rod rotates to the top corner of the through groove, the baffle can block the ventilation plate, isolate the oxygen inside the cabinet, control the spark combustion trend, and improve the safety of the device.

[0015] 2. This positive pressure explosion-proof cabinet safety monitoring device starts the pump through the control panel. The pump can input the dry powder inside the storage box into the spraying mechanism through a hose, and the sparks inside the cabinet are extinguished by the nozzle in the spraying mechanism. The alarm is turned on through the control panel to remind the staff, which improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a rear-view overall three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of a half-section structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the closing mechanism parts of the utility model.

[0021] Explanation of the markings in the figure: 1. Cabinet; 2. Hydraulic rod; 3. Straight tooth plate; 4. Through slot; 5. Ventilation plate; 6. Baffle; 7. Driving rod; 8. Gear; 9. Connecting rod; 10. Pillar No. 1; 11. Mounting rod; 12. Rotating rod; 13. Pillar No. 2; 14. Limit column No. 1; 15. Limit column No. 2; 16. Temperature sensor; 17. Alarm; 18. Spraying mechanism; 19. Storage box; 20. Pump; 21. Control panel. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a positive pressure explosion-proof cabinet safety monitoring device of the utility model in conjunction with the accompanying drawings.

[0028] like Figure 1-4As shown, a positive pressure explosion-proof cabinet safety monitoring device of the utility model comprises a cabinet 1, a temperature sensor 16 is installed on the left side wall inside the cabinet 1, an alarm 17 is installed on the right side of the top of the cabinet 1, a cabinet door is opened on the front side of the cabinet 1, a control panel 21 is arranged on the front side of the cabinet door, and a closing mechanism is arranged on the left side of the cabinet 1;

[0029] The interior of the cabinet 1 is monitored by the temperature sensor 16, and the temperature sensor 16 sends a signal to the control panel 21. The control panel 21 cooperates with the closing mechanism to effectively control the spark combustion trend inside the cabinet 1, thereby improving the applicability of the device;

[0030] The closing mechanism includes a through slot 4 opened on the left side wall of the cabinet 1, the cabinet 1 is provided with a slide slot, and the slide slot is located above the through slot 4, the front end of the inside of the slide slot is fixedly connected to a hydraulic rod 2, the other end of the hydraulic rod 2 is fixedly connected to a spur plate 3, the bottom of the slide slot is rotatably connected to a driving rod 7, and the bottom of the driving rod 7 sequentially passes through the slide slot and the top of the through slot 4 from top to bottom, the upper end of the outer surface of the driving rod 7 is fixedly connected to a gear 8, and the gear 8 is meshed with the spur plate 3, the outer surface of the gear 8 passes through the through slot 4 and is fixedly connected to a connecting rod 9, the front end of the top of the through slot 4 A No. 2 pillar 13 is fixedly connected, a baffle 6 is movably connected to the left side of the cabinet 1, a No. 2 limit column 15 is fixedly connected to the rear end of the top of the baffle 6, a rotating rod 12 is rotatably connected to the surface of the No. 2 pillar 13, and the other end of the rotating rod 12 is rotatably connected to the outer surface of the No. 2 limit column 15, a No. 1 pillar 10 is fixedly connected to the rear end of the top of the through slot 4, a No. 1 limit column 14 is fixedly connected to the front end of the top of the baffle 6, a mounting rod 11 is rotatably connected to the surface of the No. 1 pillar 10, and the other end of the rotating rod 12 is rotatably connected to the outer surface of the No. 1 limit column 14;

[0031] The two hydraulic rods 2 are started by controlling the control panel 21. The hydraulic rods 2 drive the spur plate 3 to move, thereby driving the gear 8 to rotate, and then driving the driving rod 7 to rotate. The driving rod 7 drives the connecting rod 9 to rotate, and the baffle 6 is driven to move through the connecting rod 9. The movement of the baffle 6 drives the top and bottom mounting rods 11 and the rotating rod 12 to rotate. When the other end of the mounting rod 11 rotates to the top corner of the through slot 4, the baffle 6 can block the ventilation plate 5, thereby isolating the oxygen inside the cabinet 1 and controlling the spark combustion trend.

[0032] like Figure 1-3 As shown, a storage box 19 is fixedly connected to the left side of the top of the cabinet 1, a pump 20 is installed on the top of the cabinet 1, and the right side of the storage box 19 is connected to the left side of the pump 20 through a hose, a spraying mechanism 18 is arranged on the top of the cabinet 1, and the right side of the pump 20 is connected to the top of the spraying mechanism 18 through a hose, and dry powder is placed inside the storage box 19, which can be used for fire extinguishing;

[0033] The pump 20 is started through the control panel 21, and the pump 20 can input the dry powder inside the storage box 19 into the spraying mechanism 18 through the hose, and the sparks inside the cabinet 1 are extinguished by the nozzle in the spraying mechanism 18, and the alarm 17 is turned on through the control panel 21 to remind the staff, thereby improving the use effect of the device.

[0034] like Figure 1-4 As shown, there are two groups of closing mechanisms, which are symmetrically arranged on the left and right sides of the cabinet 1 relative to the center of the cabinet 1;

[0035] By providing two sets of closing mechanisms, when spontaneous combustion occurs inside the cabinet 1 , the closing mechanisms can effectively isolate external gas from entering the cabinet 1 .

[0036] like Figure 1-3 As shown, the tops of the two through slots 4 are fixedly connected with ventilation plates 5, the bottoms of the two ventilation plates 5 are fixedly connected to the bottoms of the through slots 4, and the ventilation plates 5 are located at the rear end of the No. 1 pillar 10;

[0037] In normal state, the baffle 6 is in an open state, which is convenient for heat dissipation and ventilation inside the cabinet 1.

[0038] like Figure 1-4 As shown, a total of four pillars 10, 13, 12 and 11 are provided, and two of them are symmetrically arranged at the left ends of the top and bottom of the baffle 6;

[0039] By providing two groups, support can be provided between the baffle 6 and the connecting rod 9, making the movement more stable.

[0040] like Figure 1-4 As shown, there is a gap between the rotating rod 12 and the mounting rod 11;

[0041] When the baffle 6 moves, it drives the rotating rod 12 and the mounting rod 11 to rotate, and there is a gap between the rotating rod 12 and the mounting rod 11 so that movement interference does not occur.

[0042] like Figure 1 As shown, the output end of the temperature sensor 16 is electrically connected to the input end of the control panel 21 through a wire, and the output end of the control panel 21 is electrically connected to the wires of the alarm 17, the two hydraulic rods 2 and the pump 20 through wires;

[0043] When sparks or fire occur between the devices inside the cabinet 1, the interior of the cabinet 1 is monitored by the temperature sensor 16, and the temperature sensor 16 sends a signal to the control panel 21, which controls the two hydraulic rods 2, the alarm 17 and the pump 20 to start.

[0044] The working principle of the positive pressure explosion-proof cabinet safety monitoring device: the baffle 6 is in the open state in the daily state, which is convenient for heat dissipation and ventilation inside the cabinet 1. When sparks or fires occur between the devices inside the cabinet 1, the inside of the cabinet 1 is monitored through the temperature sensor 16, and the temperature sensor 16 sends a signal to the control panel 21. The two hydraulic rods 2 are controlled to start through the control panel 21. The hydraulic rod 2 drives the spur plate 3 to move, thereby driving the gear 8 to rotate, and then drives the driving rod 7 to rotate. The driving rod 7 rotates and drives the connecting rod 9 to rotate. The baffle 6 is driven to move through the connecting rod 9. The movement of the baffle 6 drives the top and bottom mounting rods 11 and the rotating rod 12 to rotate. When the other end of the mounting rod 11 rotates to the top corner of the through slot 4, the baffle 6 can block the ventilation plate 5, which can isolate the oxygen inside the cabinet 1 and control the spark combustion trend.

[0045] The pump 20 is started through the control panel 21, and the pump 20 can input the dry powder inside the storage box 19 into the spraying mechanism 18 through the hose, and the sparks inside the cabinet 1 are extinguished through the nozzle in the spraying mechanism 18, and the alarm 17 is turned on through the control panel 21 to remind the staff, thereby improving the use effect of the device.

[0046] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A positive pressure explosion proof cabinet safety monitoring device, comprising a cabinet body (1), characterized in that: A temperature sensor (16) is installed on the left side wall of the cabinet (1), an alarm (17) is installed on the right side of the top of the cabinet (1), a door is opened on the front side of the cabinet (1), a control panel (21) is arranged on the front side of the door, and a closing mechanism is arranged on the left side of the cabinet (1); The closing mechanism comprises a through slot (4) provided on the left side wall of the cabinet (1); the cabinet (1) is provided with a slide slot, and the slide slot is located above the through slot (4); a hydraulic rod (2) is fixedly connected to the front end of the slide slot, and the other end of the hydraulic rod (2) is fixedly connected to a spur plate (3); a driving rod (7) is rotatably connected to the bottom of the slide slot, and the bottom of the driving rod (7) passes through the slide slot and the top of the through slot (4) in sequence from top to bottom; a gear (8) is fixedly connected to the upper end of the outer surface of the driving rod (7), and the gear (8) is meshedly connected to the spur plate (3); a connecting rod (9) is fixedly connected to one end of the outer surface of the gear (8) passing through the through slot (4), and the top of the through slot (4) is fixedly connected to the connecting rod (9). A second pillar (13) is fixedly connected to the front end of the cabinet (1), a baffle (6) is movably connected to the left side of the cabinet body (1), a second limiting pillar (15) is fixedly connected to the top rear end of the baffle (6), a rotating rod (12) is rotatably connected to the surface of the second pillar (13), and the other end of the rotating rod (12) is rotatably connected to the outer surface of the second limiting pillar (15), a first pillar (10) is fixedly connected to the top rear end of the through slot (4), a first limiting pillar (14) is fixedly connected to the top front end of the baffle (6), a mounting rod (11) is rotatably connected to the surface of the first pillar (10), and the other end of the rotating rod (12) is rotatably connected to the outer surface of the first limiting pillar (14).

2. A positive pressure explosion proof cabinet safety monitoring device according to claim 1, characterized in that: A storage box (19) is fixedly connected to the left side of the top of the cabinet (1), a pump (20) is installed on the top of the cabinet (1), and the right side of the storage box (19) is connected to the left side of the pump (20) through a hose. A spraying mechanism (18) is arranged on the top of the cabinet (1), and the right side of the pump (20) is connected to the top of the spraying mechanism (18) through a hose. Dry powder is placed inside the storage box (19) for use in fire extinguishing.

3. A positive pressure explosion proof cabinet safety monitoring device according to claim 2, characterized in that: Two groups of the closing mechanisms are provided in total, and the two groups of the closing mechanisms are symmetrically arranged on the left and right sides of the cabinet (1) relative to the center of the cabinet (1).

4. A positive pressure explosion proof cabinet safety monitoring device according to claim 3, characterized in that: The tops of the two through slots (4) are fixedly connected with ventilation plates (5), the bottoms of the two ventilation plates (5) are fixedly connected to the bottoms of the through slots (4), and the ventilation plates (5) are located at the rear end of the No. 1 pillar (10).

5. A positive pressure explosion proof cabinet safety monitoring device according to claim 4, characterized in that: The first pillar (10), the second pillar (13), the rotating rod (12) and the mounting rod (11) are provided in four pieces in total, and are symmetrically arranged in pairs at the left ends of the top and bottom of the baffle (6).

6. A positive pressure explosion proof cabinet safety monitoring device according to claim 5, characterized in that: There is a gap between the rotating rod (12) and the mounting rod (11).

7. A positive pressure explosion proof cabinet safety monitoring device according to claim 1, characterized in that: The output end of the temperature sensor (16) is electrically connected to the input end of the control panel (21) through a wire, and the output end of the control panel (21) is electrically connected to the wires of the alarm (17), the two hydraulic rods (2) and the pump (20) through wires.

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