Alarm device for chemical safety management

Abstract

The utility model relates to the technical field of petrochemical industry, and discloses a chemical safety management alarm device comprising a housing, the left side of the housing is fixedly connected with a hinge, the upper surface of the hinge is fixedly connected with a top plate, the inner wall of the housing is fixedly connected with an elastic support, the inner wall of the elastic support is provided with a circuit board in an attached manner, and the circuit board is fixedly connected with the top plate. A pressing column is attached to the upper surface of the circuit board, the upper surface of the pressing column is fixedly connected with the bottom of the top plate, a round hole is formed in the right side of the shell, locking supports are fixedly connected to the inner wall of the round hole and the right side of the inner wall of the shell, and baffles are attached to the left sides of the locking supports and the right side of the shell. According to the utility model, through cooperation of the housing, the hinge, the top plate, the elastic support, the circuit board, the pressing column, the round hole, the locking support and the baffle plate, the circuit board in the alarm device is convenient to disassemble and assemble, so that maintenance personnel can maintain the circuit board conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to an alarm device for chemical safety management. Background Art

[0002] Petrochemical industry refers to the processing industry that uses petroleum and natural gas as raw materials to produce petroleum products and petrochemical products. Petroleum products are also called oil products, mainly including various fuel oils (gasoline, kerosene, diesel, etc.) and lubricating oils as well as liquefied petroleum gas, petroleum coke, paraffin, asphalt, etc. The petrochemical production process is complex, high temperature and high pressure, and the process is continuous. Most of the materials are flammable, explosive, toxic and harmful hazardous chemicals. In the process of petrochemical production, processing, storage, transportation and use, toxic and harmful gases are often produced, such as: CO, H2S, SO2, etc. Poisoning accidents caused by this also occur from time to time. Therefore, alarm devices are needed to strengthen the management and protection of toxic and harmful gases.

[0003] At present, the alarm devices for chemical safety management on the market are mainly composed of a shell, a base plate, ventilation holes, a circuit board and an alarm light. When the sensor on the circuit board detects that the concentration of harmful gases is greater than the set value, the alarm light is turned on through the circuit board, and then the operator is warned by the alarm light. For example, a petrochemical safety management alarm device disclosed in Chinese Patent Publication No. CN212873709U, however, because the circuit board is located in the device, and the shell and the base plate are fixed with bolts, when repairing the circuit board, the bolts are often stuck or lost, resulting in the shell and the base plate being unable to be disassembled, which makes it inconvenient for maintenance personnel to repair the circuit board. At the same time, since the filter on the alarm device is troublesome to disassemble and assemble, it is inconvenient for users to clean or replace the filter. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: At present, the alarm device for chemical safety management on the market is mainly composed of a shell, a base plate, ventilation holes, a circuit board and an alarm light, wherein when the sensor on the circuit board detects that the concentration of harmful gas is greater than the set value, the alarm light is turned on through the circuit board, and then the operator is warned by the alarm light, but because the circuit board is located in the device, and the shell and the base plate are fixed with bolts, when repairing the circuit board, the bolts are often stuck or lost, resulting in the shell and the base plate cannot be disassembled, thereby inconvenient for maintenance personnel to repair the circuit board, and at the same time, because the filter on the alarm device is troublesome to disassemble and assemble, it is inconvenient for the user to clean or replace the filter, and an alarm device for chemical safety management is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An alarm device for chemical safety management comprises a shell, a hinge is fixedly connected to the left side of the shell, a top plate is fixedly connected to the upper surface of the hinge, an elastic bracket is fixedly connected to the inner wall of the shell, a circuit board is fitted on the inner wall of the elastic bracket, a pressing column is fitted on the upper surface of the circuit board, the upper surface of the pressing column is fixedly connected to the bottom of the top plate, a circular hole is opened on the right side of the shell, a locking bracket is fixedly connected to the inner wall of the circular hole and the right side of the inner wall of the shell, a baffle is fitted on the left side of the locking bracket and the right side of the shell, the upper surface of the baffle is fixedly connected to the bottom of the top plate, ventilation holes are opened on the front and back sides of the shell, a through hole is opened inside the top plate, a light-transmitting lampshade is fixedly connected to the inner wall of the through hole, a mounting hole is opened on the front side of the shell, a charging interface is fixedly connected to the inner wall of the mounting hole, and the charging interface is electrically connected to the circuit board.

[0007] Preferably, the elastic bracket includes a coil spring, the bottom of which is fixedly connected to the inner wall of the outer shell, the upper surface of the coil spring is fixedly connected to an inner ring, the surface of the inner ring is fixedly connected to a hollow cylinder, the surface of the hollow cylinder is in contact with the inner wall of the outer shell, the bottom of the inner ring is fixedly connected to a limiting column, the bottom of the limiting column is in contact with the inner wall of the outer shell, and the upper surface of the inner ring and the inner wall of the hollow cylinder are both in contact with the surface of the circuit board.

[0008] Preferably, the circuit board includes a board body, which is electrically connected to the charging interface, the bottom of the pressing column, the upper surface of the inner ring and the inner wall of the hollow cylinder are all in contact with the surface of the board body, the bottom of the board body is fixedly connected to a lithium battery, the upper surface of the board body is welded with a controller, the upper surface of the board body is welded with an electrochemical sensor, the upper surface of the board body is welded with an indicator light, and the upper surface of the board body is welded with an alarm light.

[0009] Preferably, the indicator light and the warning light are both located in a light-transmitting lampshade.

[0010] Preferably, the locking bracket includes a bearing, the surface of the bearing is fixedly connected to the inner wall of the circular hole, the inner wall of the bearing is fixedly connected to a cylinder, the right side of the cylinder is fixedly connected to a rotating block, the upper surface of the cylinder is fixedly connected to an arc column, the left side of the arc column contacts the right side of the baffle, the surface of the cylinder is fixedly connected to a volute spring, and the surface of the volute spring and the right side of the inner wall of the outer shell are both fixedly connected to a fixing ring.

[0011] Preferably, filter nets are fitted on both the front and rear sides of the shell, a strip column is fixedly connected to the side of the filter net away from the shell, rubber strips are bonded to the surfaces of the filter nets on both the left and right sides of the strip column, and a U-shaped plate is fixedly connected to the front and rear sides of the shell, and the inner wall of the U-shaped plate is in contact with the surface of the rubber strip.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model is provided with a shell, a hinge, a top plate, an elastic bracket, a circuit board, a pressing column, a circular hole, a locking bracket and a baffle, wherein when the arc column on the locking bracket is separated from the baffle, the top of the shell can be opened by flipping the top plate, and the circuit board can be pushed out of the shell by the spiral spring on the elastic bracket. At the same time, when the arc plate on the locking bracket contacts the baffle, the top plate is fixed to the shell by the cooperation of the locking bracket and the arc plate, and the circuit board is fixed in the shell by the cooperation of the elastic bracket and the pressing column. Furthermore, by the cooperation of the shell, the hinge, the top plate, the elastic bracket, the circuit board, the pressing column, the circular hole, the locking bracket and the baffle, the circuit board in the alarm device is convenient to disassemble and assemble, thereby facilitating maintenance personnel to repair the circuit board.

[0014] (2) The utility model provides a filter screen, a strip column, a rubber strip and a U-shaped plate, wherein when the rubber strip is inserted into the U-shaped plate, the filter screen can be fixed to the housing by the friction between the rubber strip and the U-shaped plate. At the same time, when the thrust applied by the user to the strip column is greater than the friction between the rubber strip and the U-shaped plate, the rubber strip can directly slide out from the U-shaped plate. Then, through the cooperation of the strip column, the rubber strip and the U-shaped plate, the filter screen on the alarm device can be easily disassembled and assembled, thereby facilitating the user to clean or replace the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 It is a front view of the structure of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0020] Figure 6 It is a right side view of the housing in the utility model;

[0021] Figure 7 It is a front view of the housing in the utility model;

[0022] Figure 8 It is a top view of the housing in the utility model;

[0023] Fig. 9 for Figure 8 Enlarged view of point D in the middle;

[0024] Fig.10 It is a top view of the top plate in the utility model;

[0025] Fig.11 It is a bottom view of the elastic bracket in the utility model;

[0026] Fig.12 It is a front view of the circuit board in the utility model;

[0027] Fig.13 It is a front view of the locking bracket in the utility model;

[0028] Fig.14 It is a side view of the cylinder in the utility model.

[0029] In the figure: 1. outer shell; 2. hinge; 3. top plate; 4. elastic bracket; 41. spiral spring; 42. inner ring; 43. hollow cylinder; 44. limit column; 5. circuit board; 51. board; 52. lithium battery; 53. controller; 54. electrochemical sensor; 55. indicator light; 56. alarm light; 6. pressing column; 7. round hole; 8. locking bracket; 81. bearing; 82. cylinder; 83. rotating block; 84. arc column; 85. scroll spring; 86. fixing ring; 9. baffle; 10. ventilation hole; 11. through hole; 12. light-transmitting lampshade; 13. mounting hole; 14. charging port; 15. filter; 16. strip column; 17. rubber strip; 18. U-shaped plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] Embodiment 1:

[0033] Reference Figure 1-14 , an alarm device for chemical safety management, including a shell 1, a hinge 2 is fixedly connected to the left side of the shell 1, a top plate 3 is fixedly connected to the upper surface of the hinge 2, the top plate 3 is connected to the shell 1 through the hinge 2, and the top plate 3 can be turned over, an elastic bracket 4 is fixedly connected to the inner wall of the shell 1, a circuit board 5 is fitted on the inner wall of the elastic bracket 4, a pressing column 6 is fitted on the upper surface of the circuit board 5, and the upper surface of the pressing column 6 is fixedly connected to the bottom of the top plate 3. When the top plate 3 is fixed on the shell 1, the circuit board 5 is pressed by the pressing column 6. A round hole 7 is opened on the right side of the shell 1 The inner wall of the circular hole 7 and the right side of the inner wall of the shell 1 are fixedly connected with a locking bracket 8, the left side of the locking bracket 8 and the right side of the shell 1 are fitted with a baffle 9, the upper surface of the baffle 9 is fixedly connected to the bottom of the top plate 3, and ventilation holes 10 are provided on the front and back sides of the shell 1. The air inside and outside the shell 1 can circulate through the ventilation holes 10. A through hole 11 is provided inside the top plate 3, and a light-transmitting lampshade 12 is fixedly connected to the inner wall of the through hole 11. A mounting hole 13 is provided on the front of the shell 1, and a charging interface 14 is fixedly connected to the inner wall of the mounting hole 13. The charging interface 14 is electrically connected to the circuit board 5.

[0034] The elastic bracket 4 includes a coil spring 41, the bottom of which is fixedly connected to the inner wall of the outer shell 1, and the upper surface of the coil spring 41 is fixedly connected to an inner ring 42, which is supported by the coil spring 41, and the surface of the inner ring 42 is fixedly connected to a hollow cylinder 43, and the surface of the hollow cylinder 43 contacts the inner wall of the outer shell 1, and the bottom of the inner ring 42 is fixedly connected to a limiting column 44, and the bottom of the limiting column 44 contacts the inner wall of the outer shell 1, and the upper surface of the inner ring 42 and the inner wall of the hollow cylinder 43 are both in contact with the surface of the circuit board 5. When the top plate 3 is fixed on the outer shell 1, the circuit board 5 cannot move in the outer shell 1 through the cooperation of the pressing column 6 and the limiting column 44. When the top plate 3 is flipped to the left, the circuit board 5 can be pushed out of the outer shell 1 through the thrust of the coil spring 41 on the inner ring 42.

[0035] The circuit board 5 includes a board body 51, which is electrically connected to the charging interface 14. The bottom of the pressing column 6, the upper surface of the inner ring 42 and the inner wall of the hollow cylinder 43 are all in contact with the surface of the board body 51. A lithium battery 52 is fixedly connected to the bottom of the board body 51, and the lithium battery 52 can be charged through the charging interface 14. A controller 53 is welded on the upper surface of the board body 51, an electrochemical sensor 54 is welded on the upper surface of the board body 51, an indicator light 55 is welded on the upper surface of the board body 51, and the current working status of the alarm device is indicated by the indicator light 55. An alarm light 56 ​​is welded on the upper surface of the board body 51, and both the indicator light 55 and the alarm light 56 ​​are located in the translucent lampshade 12. When the indicator light 55 or the alarm light 56 ​​is turned on, the indicator light 55 or the alarm light 56 ​​can illuminate the translucent lampshade 12.

[0036] The locking bracket 8 includes a bearing 81, the surface of the bearing 81 is fixedly connected to the inner wall of the circular hole 7, the inner wall of the bearing 81 is fixedly connected with a cylinder 82, the cylinder 82 is connected to the circular hole 7 through the bearing 81, and the cylinder 82 can rotate freely in the circular hole 7, the right side of the cylinder 82 is fixedly connected with a rotating block 83, and the rotating block 83 makes it more convenient for the user to rotate the cylinder 82, the upper surface of the cylinder 82 is fixedly connected with an arc column 84, the left side of the arc column 84 contacts with the right side of the baffle 9, the surface of the cylinder 82 is fixedly connected with a volute spring 85, the surface of the volute spring 85 and the right side of the inner wall of the shell 1 are fixedly connected with a fixing ring 86, through the elastic force of the volute spring 85, after the arc column 84 contacts with the baffle 9, the arc column 84 and the baffle 9 will not automatically separate.

[0037] Embodiment 2:

[0038] Reference Figure 1-9 , the front and rear sides of the shell 1 are both fitted with a filter 15, through which dust cannot enter the shell 1 through the ventilation hole 10, and a strip column 16 is fixedly connected to the side of the filter 15 away from the shell 1, and rubber strips 17 are bonded to the surfaces of the filter 15 on the left and right sides of the strip column 16, and the front and rear sides of the shell 1 are both fixedly connected with a U-shaped plate 18, and the inner wall of the U-shaped plate 18 is in contact with the surface of the rubber strip 17. When the rubber strip 17 is inserted into the U-shaped plate 18, the filter 15 can be fixed on the shell 1 by the friction between the rubber strip 17 and the U-shaped plate 18. At the same time, when the thrust applied by the user to the strip column 16 is greater than the friction between the rubber strip 17 and the U-shaped plate 18, the rubber strip 17 can directly slide out from the U-shaped plate 18, and then through the cooperation of the strip column 16, the rubber strip 17 and the U-shaped plate 18, the filter 15 on the alarm device is convenient to disassemble and assemble, thereby facilitating the user to clean or replace the filter 15.

[0039] In the utility model, when the user uses the alarm device, the alarm device is first placed or installed at a designated position. Then, when the electrochemical sensor 54 on the circuit board 5 detects that the concentration of harmful gases in the air is greater than a set value, the alarm light 56 ​​is turned on by the controller 53 on the circuit board 5. Then, the light-transmitting lampshade 12 at the alarm light 56 ​​is illuminated by the alarm light 56, and the user is warned by the lighted light-transmitting lampshade 12. When the user needs to repair the circuit board 5, the arc column 84 is separated from the baffle 9 by rotating the rotating block 83, and then the top plate 3 is turned over to open the top of the housing 1, and the coil spring 41 is turned on. The circuit board 5 is pushed out of the housing 1 by the elastic force of the spiral spring 85. Then, the user repairs the circuit board 5. When the circuit board 5 is repaired, the pressing column 6 presses the circuit board 5 by turning over the top plate 3, and the circuit board 5 is pressed into the housing 1 by the pressing column 6. When the top plate 3 contacts the housing 1, the arc column 84 contacts the baffle 9 by rotating the rotating block 83. At this time, the arc column 84 and the baffle 9 will not separate automatically by the elastic force of the spiral spring 85. Then, the top plate 3 is fixed on the housing 1 by the cooperation of the arc column 84 and the baffle 9, and the circuit board 5 is fixed in the housing 1 by the cooperation of the elastic bracket 4 and the pressing column 6.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. An alarm device for chemical safety management, comprising a housing (1), characterized in that: The left side of the shell (1) is fixedly connected to a hinge (2), the upper surface of the hinge (2) is fixedly connected to a top plate (3), the inner wall of the shell (1) is fixedly connected to an elastic bracket (4), the inner wall of the elastic bracket (4) is fitted with a circuit board (5), the upper surface of the circuit board (5) is fitted with a pressing column (6), the upper surface of the pressing column (6) is fixedly connected to the bottom of the top plate (3), the right side of the shell (1) is provided with a circular hole (7), the inner wall of the circular hole (7) and the right side of the inner wall of the shell (1) are both fixedly connected to a locking bracket (8), A baffle (9) is fitted on the left side of the locking bracket (8) and the right side of the shell (1); the upper surface of the baffle (9) is fixedly connected to the bottom of the top plate (3); ventilation holes (10) are provided on the front and rear sides of the shell (1); a through hole (11) is provided inside the top plate (3); a light-transmitting lampshade (12) is fixedly connected to the inner wall of the through hole (11); a mounting hole (13) is provided on the front side of the shell (1); a charging interface (14) is fixedly connected to the inner wall of the mounting hole (13); and the charging interface (14) is electrically connected to the circuit board (5).

2. A chemical safety management alarm device according to claim 1, characterized in that: The elastic bracket (4) comprises a coil spring (41), the bottom of the coil spring (41) is fixedly connected to the inner wall of the outer shell (1), the upper surface of the coil spring (41) is fixedly connected to an inner ring (42), the surface of the inner ring (42) is fixedly connected to a hollow cylinder (43), the surface of the hollow cylinder (43) is in contact with the inner wall of the outer shell (1), the bottom of the inner ring (42) is fixedly connected to a limiting column (44), the bottom of the limiting column (44) is in contact with the inner wall of the outer shell (1), and the upper surface of the inner ring (42) and the inner wall of the hollow cylinder (43) are both in contact with the surface of the circuit board (5).

3. A chemical safety management alarm device according to claim 2, characterized in that: The circuit board (5) comprises a board body (51), the board body (51) is electrically connected to the charging interface (14), the bottom of the pressing column (6), the upper surface of the inner ring (42) and the inner wall of the hollow cylinder (43) are all in contact with the surface of the board body (51), the bottom of the board body (51) is fixedly connected to a lithium battery (52), the upper surface of the board body (51) is welded with a controller (53), the upper surface of the board body (51) is welded with an electrochemical sensor (54), the upper surface of the board body (51) is welded with an indicator light (55), and the upper surface of the board body (51) is welded with an alarm light (56).

4. A chemical safety management alarm device according to claim 3, characterized in that: The indicator light (55) and the warning light (56) are both located in the light-transmitting lampshade (12).

5. The chemical safety management alarm device according to claim 1, characterized in that: The locking bracket (8) comprises a bearing (81), the surface of the bearing (81) is fixedly connected to the inner wall of the circular hole (7), the inner wall of the bearing (81) is fixedly connected to a cylinder (82), the right side of the cylinder (82) is fixedly connected to a rotating block (83), the upper surface of the cylinder (82) is fixedly connected to an arc column (84), the left side of the arc column (84) contacts the right side of the baffle (9), the surface of the cylinder (82) is fixedly connected to a volute spring (85), and the surface of the volute spring (85) and the right side of the inner wall of the housing (1) are both fixedly connected to a fixing ring (86).

6. The chemical safety management alarm device according to claim 1, characterized in that: The front and rear sides of the housing (1) are both fitted with a filter screen (15); a side of the filter screen (15) away from the housing (1) is fixedly connected to a strip column (16); the surfaces of the filter screen (15) on both left and right sides of the strip column (16) are bonded with rubber strips (17); the front and rear sides of the housing (1) are both fixedly connected to a U-shaped plate (18); the inner wall of the U-shaped plate (18) is in contact with the surface of the rubber strip (17).

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