A new type of diffusion cover for flammable gas alarm calibration

Abstract

The utility model relates to the technical field of calibrating combustible gas detection alarms, and discloses a novel diffusion cover for calibrating combustible gas alarms, including a novel diffusion cover for calibrating combustible gas alarms, including a cover body, the left and right sides of the cover body are slidably connected with a bidirectional threaded rod, the outer periphery of the bidirectional threaded rod is threadedly connected with two sliders, the middle of the bidirectional threaded rod is rotatably connected with a limit block, the front and rear sides of the two sliders are both rotatably connected with a connecting strip, the other ends of the two connecting strips are both rotatably connected with a fixed block, and the bottoms of the two fixed blocks are fixedly connected with a sliding platform. In the utility model, the crank on the right side of the cover body is rotated, thereby driving the two sliders above the bidirectional threaded rod to move toward each other, the connecting strip is rotated, the fixed block is connected to the sliding platform, the sliding platform slides downward, the staff pulls the cover plate, and the clip clamp connected to the base platform slides on the damper until it is detached.

Description

Technical Field

[0001] The utility model relates to the technical field of calibrating combustible gas detection alarms, in particular to a novel diffusion cover for calibrating combustible gas alarms. Background Art

[0002] The new type of diffusion hood for calibrating combustible gas alarms is a device installed on combustible gas alarms to simulate an environment with a specific gas concentration to test the accuracy and response speed of the alarm.

[0003] The function of this diffusion hood is to provide a controlled environment to expose the alarm to a gas of known concentration, thereby verifying whether its detection function is normal. This equipment ensures that the alarm is tested in a real working environment, which is of great significance for preventing and responding to combustible gas leaks or explosions.

[0004] However, the traditional diffusion hood for calibrating combustible gas alarms cannot simulate the impact of different gas concentrations, so multiple alarms are required, which increases the cost. In addition, the traditional diffusion hood cannot be disassembled, which causes trouble for the staff to maintain it. Therefore, a new type of diffusion hood for calibrating combustible gas alarms is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a novel diffusion cover for calibrating combustible gas alarms, aiming to improve the problems of concentration setting and disassembly in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new type of diffusion cover for calibrating combustible gas alarms, including a cover body, wherein two-way threaded rods are slidably connected on the left and right sides of the cover body, two sliding blocks are threadedly connected on the outer periphery of the two-way threaded rods, the middle part of the two-way threaded rods is rotatably connected to a limiting block, the front and rear sides of the two sliding blocks are rotatably connected to connecting strips, the other ends of the two connecting strips are rotatably connected to fixed blocks, the bottoms of the two fixed blocks are fixedly connected to sliding platforms, the sliding platforms are slidably connected to the inside of the cover body, and a disassembly component is arranged inside the cover body.

[0007] As a further description of the above technical solution: the disassembly assembly includes a cover plate, the cover plate abuts against the top of the cover body, the bottom of the cover plate is fixedly connected to two base platforms, the bottom of the base platform is rotatably connected to two clamps, the two clamps are fixedly connected to two connecting blocks on the separated sides, the tops of the two connecting blocks are fixedly connected to telescopic tubes, the outer circumferences of the two telescopic tubes are both provided with springs, the two clamps are clamped with damping blocks on the separated sides, and the bottom of the damping block is fixedly connected to a base.

[0008] As a further description of the above technical solution: an air outlet pipe is fixedly connected to the right side of the cover body, and a valve 2 is threadedly connected to the outer periphery of the air outlet pipe.

[0009] As a further description of the above technical solution: an air intake pipe is fixedly connected to the left side of the cover body, and a valve 1 is threadedly connected to the outer periphery of the air intake pipe.

[0010] As a further description of the above technical solution: a connecting pipe is fixedly connected to the left side of the cover body, and a detector is fixedly connected to the left side of the connecting pipe.

[0011] As a further description of the above technical solution: a crank is fixedly connected to the right side of the bidirectional threaded rod.

[0012] As a further description of the above technical solution: one end of the two springs is fixedly connected to the bottom of the cover plate, and the other ends of the two springs are respectively fixedly connected to the tops of the two connecting blocks.

[0013] As a further description of the above technical solution: the two bases are fixedly connected to the inner sides of the cover body.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, when it is necessary to detect the gas concentration, the crank on the right side of the cover body is rotated to rotate the bidirectional threaded rod, thereby driving the two sliders above the bidirectional threaded rod to move toward each other, the movement of the slider drives the connecting bar to rotate, the connecting bar rotates, and drives the fixed block connected to the connecting bar to move downward, the fixed block is connected to the sliding platform, and the sliding platform slides downward, thereby achieving the effect of adjusting the gas concentration.

[0016] 2. In the utility model, when the staff needs to open the diffusion hood for inspection, the staff pulls the cover plate, and the clip clamp connected to the base slides on the damper until it is detached, and the connecting block connected to the clip clamp is deformed, and the connecting block drives the spring and the telescopic tube to be deformed, and finally the cover plate is detached from the hood body, thereby achieving the effect of disassembling the diffusion hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a new type of diffusion cover for calibrating a combustible gas alarm proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a bidirectional threaded rod of a novel diffusion cover for calibrating a combustible gas alarm proposed by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Cover plate; 2. Cover body; 3. Valve 1; 4. Inlet pipe; 5. Crank; 6. Valve 2; 7. Exhaust pipe; 8. Detector; 9. Connecting pipe; 10. Slider; 11. Bidirectional threaded rod; 12. Limit block; 13. Connecting strip; 14. Fixing block; 15. Base; 16. Card holder; 17. Snap clamp; 18. Damping block; 19. Spring; 20. Telescopic tube; 21. Connecting block; 22. Sliding platform. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a novel diffusion cover for calibrating combustible gas alarm, including a cover body 2, a bidirectional threaded rod 11 is slidably connected to the left and right sides of the cover body 2, the outer periphery of the bidirectional threaded rod 11 is threadedly connected to two sliders 10, the middle of the bidirectional threaded rod 11 is rotatably connected to a limited block 12, the front and rear sides of the two sliders 10 are both rotatably connected to a connecting strip 13, the other ends of the two connecting strips 13 are both rotatably connected to a fixed block 14, the bottoms of the two fixed blocks 14 are fixedly connected to a sliding platform 22, the sliding platform 22 is slidably connected to the inside of the cover body 2, and the cover body 2 is provided with a disassembly Unload the assembly, the function of the cover body 2 is to provide an environment for detecting gas, a bidirectional threaded rod 11 is arranged on the inner side of the cover body 2, and its function is to connect the slider 10, a slider 10 is arranged on the outer periphery of the bidirectional threaded rod 11, and its function is to connect the connecting strip 13, a limiting block 12 is arranged in the middle of the bidirectional threaded rod 11, and its function is to prevent the position of the slider 10 from shifting, a fixed block 14 is arranged at one end of the connecting strip 13, and its function is to connect the connecting strip 13, a sliding platform 22 is arranged at the bottom of the fixed block 14, and its function is to compress the gas, and a crank 5 is arranged on the right side of the bidirectional threaded rod 11, and its function is to drive the bidirectional threaded rod 11.

[0024] Reference Figure 2 and Figure 3The disassembly assembly includes a cover plate 1, which is abutted against the top of the cover body 2. Two card bases 16 are fixedly connected to the bottom of the cover plate 1. Two clamps 17 are rotatably connected to the bottom of the card base 16. Two connecting blocks 21 are fixedly connected to the two connecting blocks 21 on one side. Telescopic tubes 20 are fixedly connected to the tops of the two connecting blocks 21. Springs 19 are sleeved on the outer circumferences of the two telescopic tubes 20. Damping blocks 18 are clamped to the two clamps 17 on the side away from each other. The bottom of the damping block 18 is fixedly connected to the base 15. The function of the cover plate 1 is to facilitate the staff to open the diffusion cover. The bottom of the cover plate 1 is provided with a card The base 16 is used to support the clamp 17. The clamp 17 is provided at the bottom of the base 16 to clamp the damping block 18. Connecting blocks 21 are provided on both sides of the clamp 17 to connect the clamp 17 and the telescopic tube 20. The outer peripheral sleeve of the telescopic tube 20 is provided with a spring 19. The function of the spring 19 is to support the clamp 17 for clamping. The function of the telescopic tube 20 is to prevent the spring 19 from deforming too much. The bottom of the clamp 17 is provided with a damping block 18 to slide with the clamp 17. The bottom of the damping block 18 is provided with a base 15 to support the damping block 18.

[0025] Reference Figure 1 An air outlet pipe 7 is fixedly connected to the right side of the cover body 2, and a valve 2 6 is threadedly connected to the outer periphery of the air outlet pipe 7. An air inlet pipe 4 is fixedly connected to the left side of the cover body 2, and a valve 1 3 is threadedly connected to the outer periphery of the air inlet pipe 4. A connecting pipe 9 is fixedly connected to the left side of the cover body 2, and a detector 8 is fixedly connected to the left side of the connecting pipe 9. A crank 5 is fixedly connected to the right side of the two-way threaded rod 11. An air outlet pipe 7 is arranged on the right side of the cover body 2, and a valve 2 6 is arranged on the upper end of the air outlet pipe 7, both of which are used to control the gas to be discharged from the diffusion cover. An air inlet pipe 4 and a valve 3 are arranged on the left side of the cover body 2, both of which are used to control the gas to enter the diffusion cover. A connecting pipe 9 and a detector 8 are arranged on the left side of the cover body 2, and their function is to inhale gas into the detector 8 for detection.

[0026] Working principle: when it is necessary to detect the gas concentration, turn the crank 5 on the right side of the cover body 2 to rotate the bidirectional threaded rod 11, thereby driving the two sliders 10 above the bidirectional threaded rod 11 to move towards each other, and the movement of the slider 10 drives the connecting bar 13 to rotate, and the connecting bar 13 rotates, driving the fixed block 14 connected to the connecting bar 13 to move downward, and the fixed block 14 is connected to the sliding platform 22, and the sliding platform 22 slides downward, thereby achieving the effect of adjusting the gas concentration. When the staff needs to open the diffusion cover for inspection, the staff pulls the cover plate 1, and the clip clamp 17 connected to the base platform 16 slides on the damping block 18 until it disengages, and the connecting block 21 connected to the clip clamp 17 is deformed, and the connecting block 21 drives the spring 19 and the telescopic tube 20 to be deformed. Finally, the cover plate 1 is separated from the cover body 2, thereby achieving the effect of disassembling the diffusion cover.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel diffusion cover for calibrating a combustible gas alarm, comprising a cover body (2), characterized in that: The cover body (2) is slidably connected to the left and right sides thereof with a bidirectional threaded rod (11); the outer periphery of the bidirectional threaded rod (11) is threadedly connected to two sliders (10); the middle of the bidirectional threaded rod (11) is rotatably connected to a limit block (12); the front and rear sides of the two sliders (10) are both rotatably connected to connecting strips (13); the other ends of the two connecting strips (13) are both rotatably connected to fixed blocks (14); the bottoms of the two fixed blocks (14) are fixedly connected to sliding platforms (22); the sliding platforms (22) are slidably connected to the inside of the cover body (2); and a disassembly component is provided inside the cover body (2).

2. According to claim 1, the novel diffusion cover for calibrating combustible gas alarm is characterized by: The disassembly assembly comprises a cover plate (1), wherein the cover plate (1) is abutted against the top of the cover body (2), the bottom of the cover plate (1) is fixedly connected to two clamping platforms (16), the bottom of the clamping platform (16) is rotatably connected to two clamping pliers (17), the two clamping pliers (17) are fixedly connected to two connecting blocks (21) on the separated sides, the tops of the two connecting blocks (21) are fixedly connected to telescopic tubes (20), the outer circumferences of the two telescopic tubes (20) are sleeved with springs (19), the two clamping pliers (17) are clamped to damping blocks (18) on the separated sides, and the bottom of the damping block (18) is fixedly connected to a base (15).

3. The novel diffusion cover for calibrating combustible gas alarm according to claim 1 is characterized in that: An air outlet pipe (7) is fixedly connected to the right side of the cover body (2), and a valve 2 (6) is threadedly connected to the outer periphery of the air outlet pipe (7).

4. The novel diffusion cover for calibrating combustible gas alarm according to claim 1 is characterized in that: An air intake pipe (4) is fixedly connected to the left side of the cover body (2), and a valve 1 (3) is threadedly connected to the outer periphery of the air intake pipe (4).

5. The novel diffusion cover for calibrating combustible gas alarm according to claim 1 is characterized in that: A connecting pipe (9) is fixedly connected to the left side of the cover body (2), and a detector (8) is fixedly connected to the left side of the connecting pipe (9).

6. The novel diffusion cover for calibrating combustible gas alarm according to claim 2 is characterized by: The right side of the bidirectional threaded rod (11) is fixedly connected with a crank (5).

7. The novel diffusion cover for calibrating combustible gas alarm according to claim 2 is characterized by: One end of the two springs (19) is fixedly connected to the bottom of the cover plate (1), and the other end of the two springs (19) is fixedly connected to the top of the two connection blocks (21) respectively.

8. The novel diffusion cover for calibrating combustible gas alarm according to claim 2 is characterized by: The two bases (15) are both fixedly connected to two sides of the interior of the cover body (2).

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