Collecting device for toxic gas alarm

Abstract

The utility model relates to the technical field of collection devices, in particular to a collection device for a toxic gas alarm, which comprises a welding pipe, a collection control mechanism is arranged below the welding pipe, a barrier protection mechanism is arranged below the collection control mechanism, a gas inlet adjusting mechanism is arranged below the barrier protection mechanism, and a gas outlet adjusting mechanism is arranged below the gas inlet adjusting mechanism. When the collecting device for the poisonous gas alarm is used, the filter screen plate and the spring assembly are combined through the mechanism assembly, when the filter screen plate is seriously blocked, the filter screen plate can automatically move towards the side of the fan assembly under the influence of the negative pressure effect, and the spring can be extruded to be charged during movement; and then the fan assembly is closed, the spring rebounds to automatically drive the filter screen plate to reset, dust and impurities on the side edge of the filter screen plate can be vibrated down in the vibration process, and therefore the blockage clearing effect can be conveniently achieved in the working process, the overall structural design is ingenious, and the practical effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to collection device technical field, especially a kind of collection device for toxic gas alarm. BACKGROUND

[0002] Toxic gas alarm is a kind of safety equipment for detecting and alarming harmful gas, usually installed in the side of pipeline prone to leak toxic gas, which monitors the gas concentration in air in real time through sensor, and when detecting that the concentration of certain toxic gas exceeds the preset safety threshold, the alarm will issue sound and light alarm signal to remind personnel to take appropriate safety measures, and the collection device for toxic gas alarm is a kind of device for assisting the air inlet of alarm.

[0003] The collection device for toxic gas alarm disclosed in patent No. "CN220526433U" can adjust the height of the air inlet structure by making the first air inlet pipe and the second air inlet pipe have slidable, and the operator can freely adjust the position of the third air inlet pipe according to needs to adapt to different working environments or specific requirements. Since the above-mentioned device only realizes the effect of air inlet filtering through the filter screen, and the filter screen will be clogged with the accumulation of use time, it is necessary to disassemble it from the inside of the device for maintenance and cleaning, the overall operation process is troublesome, and the device needs to be controlled and stopped, which directly affects the normal monitoring effect of the toxic alarm, so there is an urgent need for a collection device for toxic gas alarm that can also realize the effect of clearing blockage during work. UTILITY MODEL CONTENTS

[0004] The purpose of the present utility model is to solve the above-mentioned problems and provide a collection device for toxic gas alarm, which improves the problem that the above-mentioned collection device for toxic gas alarm only realizes the effect of air inlet filtering through the filter screen, and the filter screen will be clogged with the accumulation of use time, so it is necessary to disassemble it from the inside of the device for maintenance and cleaning, the overall operation process is troublesome, and the device needs to be controlled and stopped, which directly affects the normal monitoring effect of the toxic alarm.

[0005] A collection device for toxic gas alarm, comprising a welded pipe: a collection control mechanism is arranged below the welded pipe, a blocking protection mechanism is arranged below the collection control mechanism, and an air inlet adjusting mechanism is arranged below the blocking protection mechanism.

[0006] The collection control mechanism comprises a protective outer pipe and a fan assembly, the top end outer wall of the protective outer pipe is connected with the bottom end outer wall of the welded pipe, the fan assembly is installed inside the protective outer pipe, and the air outlet end of the fan assembly faces the welded pipe.

[0007] Preferably, the welding pipe is provided with air outlet grooves at equal intervals on the side wall near the top end.

[0008] Preferably, the barrier protection mechanism comprises a positioning support pipe and a filter screen plate, the top end outer wall of the positioning support pipe is connected with the bottom end outer wall of the protective outer pipe, and the filter screen plate is slidably installed in the positioning support pipe.

[0009] Preferably, the side outer wall of the filter screen plate is symmetrically provided with limiting T-shaped blocks, the side inner wall of the positioning support pipe is correspondingly provided with two groups of limiting T-shaped grooves, the limiting T-shaped blocks are slidably installed in the limiting T-shaped grooves, and the top end outer wall of the limiting T-shaped block and the top end inner wall of the limiting T-shaped groove are connected with a supporting spring.

[0010] Preferably, the air inlet adjusting mechanism comprises a threaded mounting ring, a butt joint threaded ring and a flexible expansion pipe, the top end outer wall of the threaded mounting ring is connected with the bottom end outer wall of the positioning support pipe, the butt joint threaded ring is threadedly installed on the outer portion of the threaded mounting ring, and the bottom end outer wall of the butt joint threaded ring is connected with the top end outer wall of the flexible expansion pipe.

[0011] Preferably, the bottom end outer wall of the flexible expansion pipe is connected with the top end outer wall of an auxiliary support pipe, the side outer wall of the auxiliary support pipe is symmetrically provided with two groups of positioning clamping rings, and the bottom end outer wall of the auxiliary support pipe is provided with an air guide cover.

[0012] Preferably, the air guide cover is provided in a horn shape, and the air inlet end of the air guide cover is provided with a larger diameter side.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1、The toxic gas alarm collecting device is combined with the spring assembly through the mechanism assembly, and when the filter screen plate is seriously blocked, the filter screen plate is automatically moved to the fan assembly side under the action of negative pressure, the spring is squeezed to store energy during the movement, the fan assembly spring rebounds to automatically drive the filter screen plate to reset, and the dust and impurities on the side of the filter screen plate are shaken off through the vibration process, so that the effect of cleaning and unblocking can be realized during the work process, the overall structure design is ingenious, and the practical effect is good.

[0015] 2. When using the toxic gas alarm's data collection device, a flexible telescopic tube is designed at the bottom of the device. Utilizing the tube's expandability and bendability, the gas collection angle can be adjusted by changing the tube's bending angle. This adjustment process allows the monitoring area to more closely match the actual target monitoring area. Combined with a positioning clip that secures the flexible telescopic tube to the outside of adjacent pipes, the device achieves convenient positioning and support. The overall structure is simple and practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the data acquisition and control mechanism of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the barrier and protection mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the intake adjustment mechanism of this utility model.

[0020] In the diagram: 1. Welded pipe; 2. Acquisition and control mechanism; 21. Protective outer pipe; 22. Fan assembly; 3. Barrier protection mechanism; 31. Positioning support pipe; 32. Filter plate; 33. Limiting T-block; 34. Limiting T-slot; 35. Support spring; 4. Air intake adjustment mechanism; 41. Threaded mounting ring; 42. Butt threaded ring; 43. Flexible telescopic pipe; 44. Auxiliary support pipe; 45. Positioning retainer ring; 46. Exhaust hood. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practical implementation: such as Figures 1-4 As shown, a collection device for a toxic gas alarm includes a welded pipe 1; a collection control mechanism 2 is provided below the welded pipe 1; a barrier protection mechanism 3 is provided below the collection control mechanism 2; and an air intake adjustment mechanism 4 is provided below the barrier protection mechanism 3.

[0023] The collection control mechanism 2 comprises a protective outer pipe 21 and a fan assembly 22, the top end outer wall of the protective outer pipe 21 is connected with the bottom end outer wall of the welding pipe 1, the fan assembly 22 is installed in the interior of the protective outer pipe 21, and the air outlet end of the fan assembly 22 faces the welding pipe 1;

[0024] Here, the specific structure of the fan assembly 22 refers to the structure and installation mode of the axial flow fan, which belongs to the conventional technical structure, and will not be described in detail here. Meanwhile, the welding pipe 1 needs to be welded and installed at the air inlet end of the toxic gas alarm during use. When the fan assembly 22 is opened, the air outside will be sucked into the interior of the protective outer pipe 21 through negative pressure suction, and then guided into the interior of the welding pipe 1 through the protective outer pipe 21, and then guided into the interior of the toxic gas alarm through the welding pipe 1, so that whether the air is mixed with toxic gas can be judged through the detection process of the toxic gas alarm.

[0025] The side outer wall of the welding pipe 1 near the top end position is provided with air outlet grooves at equal intervals in a surrounding manner, and the interior of the air outlet grooves is provided with a filter screen structure. The provision of the air outlet grooves facilitates the discharge of excess air to the outside of the device, and the design of the filter screen structure avoids the blockage of the equipment by the dust entering the interior of the device.

[0026] The blocking protection mechanism 3 comprises a positioning support pipe 31 and a filter screen plate 32, the top end outer wall of the positioning support pipe 31 is connected with the bottom end outer wall of the protective outer pipe 21, the filter screen plate 32 is slidably installed in the interior of the positioning support pipe 31, the side outer wall of the filter screen plate 32 is symmetrically provided with a limiting T-shaped block 33, two groups of limiting T-shaped grooves 34 are provided on the side inner wall of the positioning support pipe 31 in correspondence, the limiting T-shaped block 33 is slidably installed in the interior of the limiting T-shaped groove 34, and the top end outer wall of the limiting T-shaped block 33 and the top end inner wall of the limiting T-shaped groove 34 are connected with a supporting spring 35;

[0027] The provision of the filter screen plate 32 allows the air to pass through the isolation effect of the filter screen plate 32 when entering the positioning support pipe 31, so as to filter out the solid impurity particles mixed in the air. When the side of the filter screen plate 32 is seriously blocked, the filter screen plate 32 will automatically move to the side of the fan assembly 22 due to the influence of the negative pressure blockage of the filter screen plate 32, so that the filter screen plate 32 moves to automatically drive the limiting T-shaped block 33 to slide in the interior of the limiting T-shaped groove 34. At this time, the supporting spring 35 is in a contracted state due to the extrusion of the limiting T-shaped block 33, and then the fan assembly 22 is closed. At this time, the supporting spring 35 will automatically rebound and drive the filter screen plate 32 to reset. Through the vibration process, the dust and impurities on the side of the filter screen plate 32 can be shaken off, so as to realize the cleaning effect of the filter screen plate 32.

[0028] The air inlet adjusting mechanism 4 comprises a threaded mounting ring 41, a butt joint threaded ring 42 and a flexible telescopic pipe 43, the top end outer wall of the threaded mounting ring 41 is connected with the bottom end outer wall of the positioning support pipe 31, the butt joint threaded ring 42 is externally threaded mounted on the threaded mounting ring 41, the bottom end outer wall of the butt joint threaded ring 42 is connected with the top end outer wall of the flexible telescopic pipe 43, the bottom end outer wall of the flexible telescopic pipe 43 is connected with the top end outer wall of an auxiliary support pipe 44, two groups of positioning clamping rings 45 are symmetrically mounted on the side outer walls of the auxiliary support pipe 44, and the bottom end outer wall of the auxiliary support pipe 44 is provided with an air guide cover 46.

[0029] When it is needed to install the flexible telescopic pipe 43 below the positioning support pipe 31, at this time, only the butt joint threaded ring 42 at the top end of the flexible telescopic pipe 43 needs to be screwed to the outside of the threaded mounting ring 41 after being adjusted to a suitable position, and then the flexible telescopic pipe 43 is directly bent and adjusted to a suitable angle direction according to the actual detection direction of the toxic gas, and the positioning clamping ring 45 is clamped to the outer wall of the adjacent pipe after being adjusted to complete the positioning support of the flexible telescopic pipe 43.

[0030] The air guide cover 46 is provided in a horn-shaped structure, and the air inlet end of the air guide cover 46 is one side with a larger diameter; in this way, the air around the equipment can be more quickly introduced into the device by expanding the air inlet area.

[0031] In use, the welded pipe 1 is first welded and mounted to the air inlet end of the toxic gas alarm, then the flexible telescopic pipe 43 is installed below the positioning support pipe 31, at this time, only the butt joint threaded ring 42 at the top end of the flexible telescopic pipe 43 needs to be screwed to the outside of the threaded mounting ring 41 after being adjusted to a suitable position, and then the flexible telescopic pipe 43 is directly bent and adjusted to a suitable angle direction according to the actual detection direction of the toxic gas, and the positioning clamping ring 45 is clamped to the outer wall of the adjacent pipe after being adjusted to complete the positioning support of the flexible telescopic pipe 43.

[0032] When the gas collection process is needed, at this time only need to open the fan assembly 22, it is pointed out that the specific structure of the fan assembly 22 refers to the structure and installation mode of the axial flow fan, which belongs to the conventional technical structure, and will not be described here. When the fan assembly 22 is opened, the outside air will be sucked into the inside of the auxiliary support pipe 44 through the induced draft hood 46 by negative pressure extraction, and then transported to the inside of the positioning support pipe 31 through the auxiliary support pipe 44. The filter screen plate 32 is arranged to filter the solid impurity particles carried in the air when the air enters the positioning support pipe 31, and then the filtered air flow can be normally transported to the toxic gas alarm for detection, and the detection process of the toxic gas alarm can determine whether the air is carried with toxic gas. The arrangement of the air outlet groove facilitates the discharge of excess air to the outside of the device, and the design of the filter screen structure avoids the blockage of the device by external dust.

[0033] When the side of the filter screen plate 32 is seriously blocked, the filter screen plate 32 will automatically move to the side of the fan assembly 22 due to the negative pressure blockage of the filter screen plate 32, and then the movement of the filter screen plate 32 will automatically drive the limiting T-shaped block 33 to slide in the limiting T-shaped groove 34. At this time, the supporting spring 35 is in a contracted state under the extrusion of the limiting T-shaped block 33, and then the fan assembly 22 is closed. At this time, the supporting spring 35 will automatically rebound and drive the filter screen plate 32 to reset. Through the vibration process, the dust and impurities on the side of the filter screen plate 32 can be shaken off, thereby realizing the cleaning effect of the filter screen plate 32.

[0034] It is pointed out that the micro motor built in the above-mentioned fan assembly 22 can be connected for power supply according to the existing operation mode, which belongs to the existing conventional operation technical means, and will not be described here.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity. The skilled person should consider the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments that can be understood by the skilled person.

Claims

1. A gas collection device for a toxic gas alarm, characterized in that, Including welding pipe (1): the lower part of the welding pipe (1) is provided with collection control mechanism (2), the lower part of the collection control mechanism (2) is provided with barrier protection mechanism (3), the lower part of the barrier protection mechanism (3) is provided with air inlet adjusting mechanism (4); The collection control mechanism (2) includes a protective outer tube (21) and a fan assembly (22), the top end outer wall of the protective outer tube (21) is connected with the bottom end outer wall of the welding pipe (1), the fan assembly (22) is installed in the protective outer tube (21), and the air outlet end of the fan assembly (22) faces the welding pipe (1).

2. The collection device for a toxic gas alarm according to claim 1, characterized by: The side edge outer wall of the welding pipe (1) is provided with air outlet grooves at equal intervals, and the inside of the air outlet grooves is provided with filter screen structure.

3. The collection device for a toxic gas alarm according to claim 1, wherein: The barrier protection mechanism (3) includes a positioning support tube (31) and a filter screen plate (32), the top end outer wall of the positioning support tube (31) is connected with the bottom end outer wall of the protective outer tube (21), and the filter screen plate (32) is slidably installed in the positioning support tube (31).

4. The collection device for a toxic gas alarm according to claim 3, wherein: The side edge outer wall of the filter screen plate (32) is symmetrically provided with a limiting T-shaped block (33), the side edge inner wall of the positioning support tube (31) is correspondingly provided with two groups of limiting T-shaped grooves (34), the limiting T-shaped block (33) is slidably installed in the limiting T-shaped groove (34), and the top end outer wall of the limiting T-shaped block (33) and the top end inner wall of the limiting T-shaped groove (34) are connected with a supporting spring (35).

5. The collection device for a toxic gas alarm according to claim 3, wherein: The air inlet adjusting mechanism (4) includes a threaded mounting ring (41), a butt joint threaded ring (42) and a flexible expansion tube (43), the top end outer wall of the threaded mounting ring (41) is connected with the bottom end outer wall of the positioning support tube (31), the butt joint threaded ring (42) is threadedly installed on the outside of the threaded mounting ring (41), and the bottom end outer wall of the butt joint threaded ring (42) is connected with the top end outer wall of the flexible expansion tube (43).

6. The collection device for a toxic gas alarm according to claim 5, wherein: The bottom end outer wall of the flexible expansion tube (43) is connected with the top end outer wall of an auxiliary support tube (44), the side edge outer wall of the auxiliary support tube (44) is symmetrically provided with two groups of positioning clamping rings (45), and the bottom end outer wall of the auxiliary support tube (44) is provided with an air guide cover (46).

7. The collection device for a toxic gas alarm according to claim 6, wherein: The air guide cover (46) is provided in a horn shape, and the air inlet end of the air guide cover (46) is the side with a larger diameter.

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