Indoor harmful gas detection equipment

Abstract

The utility model discloses indoor harmful gas detection equipment. A lifting mechanism comprises a belt pulley, a driving motor and a strip-shaped belt body, the belt pulley is arranged at the top of the bracket; the driving motor is used for driving the belt pulley to rotate positively and negatively around the own central axis; the strip-shaped belt body is wound on the belt pulley and is provided with two free ends which are respectively arranged on two opposite sides of the belt pulley; a gas detection device is arranged at the free end of the strip-shaped belt body; the gas detection device is provided with a gas flowing path and a gas detection sensor arranged on the gas flowing path; the suction port of the gas suction device is connected with the outlet ends of the gas flow paths of the two detection devices; and an extension pipe is arranged on an exhaust port of the gas suction device. The lifting height of the gas detection device can be adjusted in a large range, so that harmful gas close to the ground can be detected, and meanwhile, the detected harmful gas can be discharged to a space far away from the gas detection device, so that the detected harmful gas is prevented from being gathered.

Description

Technical Field

[0001] The utility model relates to the technical field of harmful gas detection, in particular to an indoor harmful gas detection device. Background Art

[0002] Currently, in newly decorated commercial housing, indoor enclosed places such as shopping malls, factories, and schools will have some harmful gases. Detecting indoor harmful gases has positive significance for ensuring the safety of living and working environments. There are many types of indoor harmful gases, including volatile gases such as formaldehyde, inorganic gases such as carbon monoxide, and inhalable particulate matter. The above-mentioned harmful gases are distributed at different positions in the height direction of the room. It is necessary to adjust the harmful gas detection device to the corresponding height for detection. The Chinese utility model patent document with the application number 202222508401.0 discloses an indoor harmful gas detection device that is convenient for detecting different heights. By rotating the internal threaded tube, the threaded rod is driven to move longitudinally, and the threaded rod drives the support rod and the detection body to move longitudinally to adjust the position of the detection body in the height direction. In this technical solution, limited by the base and the support rod, the position of the detection body is difficult to be adjusted to a position close to the ground, making it difficult to obtain data on harmful gases close to the ground.

[0003] In addition, a conventional harmful gas detection device is internally provided with an exhaust fan to be able to suck the surrounding air containing harmful gases into the harmful gas detection device by suction. After detection, it is then discharged into the surrounding space. The harmful gases accumulate in the space around the harmful gas detection device and are repeatedly detected, affecting the detection effect of the indoor environment. Summary of the Utility Model

[0004] Aiming at the above existing technical problems, the purpose of the present utility model is: to propose an indoor harmful gas detection device that can widely adjust the lifting height of the gas detection device to detect harmful gases close to the ground, and at the same time can discharge the detected harmful gases into a space far from the gas detection device to prevent the accumulation of the detected harmful gases and effectively improve the detection effect of the indoor environment.

[0005] The technical solution of the present utility model is realized as follows: An indoor harmful gas detection device includes a bracket, a lifting mechanism, a gas detection device, and a gas suction device;

[0006] The lifting mechanism includes a pulley, a driving motor, and a strip-shaped belt body; the pulley is arranged at the top of the bracket and rotates around its own central axis; the driving motor is arranged on the bracket and is used to drive the pulley to rotate in the forward and reverse directions around its own central axis;

[0007] The strip-shaped belt body is wound around the pulley and has two free ends respectively arranged on opposite sides of the pulley;

[0008] The gas detection device is arranged at the free end corresponding to each of the strip-shaped belt bodies; the gas detection device has a gas flow path, and a gas detection sensor arranged on the gas flow path;

[0009] The gas suction device is arranged at the bottom of the bracket, and the suction port of the gas suction device is connected to the outlet ends of the gas flow paths of the two detection devices; an extension pipe extending in a direction away from the gas detection device is arranged at the exhaust port of the gas suction device.

[0010] Further, the gas detection device includes an assembly plate; the assembly plate is connected to the free end of the strip-shaped belt body; a counterweight body for increasing the weight of the gas detection device is arranged on the assembly plate.

[0011] Further, a vertically extending chute is arranged on the bracket; a sliding rod is arranged on the assembly plate; the sliding rod is arranged to move up and down in the chute.

[0012] Further, a communication pipe is arranged between the gas suction device and the gas detection device; a receiving space for receiving the communication pipe is arranged inside the bracket; the two gas detection devices are arranged on opposite sides of the receiving space.

[0013] Further, the communication pipe includes a first hose and a second hose; the first hose is connected between the outlet ends of the gas flow paths of the two gas detection devices; the second hose is connected between the first hose and the suction port of the gas suction device.

[0014] Further, tooth grooves are arranged at intervals in the circumferential direction on the outer peripheral surface of the pulley; tooth portions matching the tooth grooves are arranged on the side surface of the strip-shaped belt body; the tooth portions are arranged at intervals along the length direction of the strip-shaped belt body.

[0015] Further, the gas detection device includes a housing; an air inlet and an air outlet are arranged on the housing; the gas flow path is formed between the air inlet and the air outlet; the gas detection sensor is arranged inside the housing and is located between the air inlet and the air outlet.

[0016] Further, each of the gas detection devices includes at least one group of the gas detection sensors.

[0017] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0018] Through the combined use of a strip-shaped belt body and a pulley, the pulley rotates in both forward and reverse directions to drive the free end of the strip-shaped belt body to move up and down, thereby realizing the position adjustment of the gas detection device in the height direction. Moreover, the free end of the strip-shaped belt body can move to positions close to the bottom and top of the bracket, so as to be able to adjust the lifting height of the gas detection device over a large range to detect harmful gases close to the ground. Through the combined use of a gas suction device, air can be synchronously introduced into the two gas detection devices and discharged through an extension pipe, so that when detecting harmful gases at the current height position, the detected harmful gases can be discharged to a space far from the gas detection device to prevent the accumulation of the detected harmful gases and effectively improve the detection effect of the indoor ring.

[0019] 2. By adding a counterweight to the gas detection device, the overall weight of the gas detection device is increased to effectively improve the stability of the gas detection device during lifting and lowering. At the same time, it can also prevent the strip-shaped belt body and the pulley from slipping when moving relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present invention will be further described below in conjunction with the drawings:

[0021] Figure 1 is a three-dimensional structure schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is Figure 1 a cross-sectional structure schematic diagram;

[0023] Figure 3 is a three-dimensional structure schematic diagram of the bracket of the present invention;

[0024] Figure 4 is Figure 1 a three-dimensional structure schematic diagram of removing the bracket and the driving motor in

[0025] Figure 5 is Figure 4 a side view structure schematic diagram;

[0026] Figure 6 is a three-dimensional structure schematic diagram of the gas detection device of the present invention;

[0027] Figure 7 is Figure 6 a three-dimensional structure schematic diagram from another perspective of

[0028] Wherein: 1. Support; 11. Accommodating space; 12. Slide groove; 2. Pulley; 21. Tooth groove; 3. Strip-shaped belt body; 31. Tooth part; 4. Driving motor; 5. Connecting pipe; 51. First hose; 52. Second hose; 6. Gas detection device; 61. Assembly plate; 611. Slide bar; 62. Housing; 621. Air inlet; 622. Air outlet; 623. Threading port; 63. Counterweight; 7. Gas suction device; 71. Extension pipe. Detailed implementation mode

[0029] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0030] As Figures 1-7 shown is an indoor harmful gas detection device described in this embodiment. This harmful gas detection device is applicable to detecting harmful gases in indoor environments such as schools, shopping malls, factories, etc. Among them, this harmful gas detection device includes a support 1, a lifting mechanism, a gas detection device 6, and a gas suction device 7. The support 1 has a designed height to be able to adapt to the height requirements in the indoor environment. The lifting mechanism includes a pulley 2, a driving motor 4, and a strip-shaped belt body 3. The central axis of the pulley 2 is installed at the top of the support 1 through a bearing, enabling the pulley 2 to rotate around its own central axis. The aforementioned driving motor 4 is fixed to the support 1, and the driving end of the driving motor 4 is connected to the central axis of the pulley 2 through a coupling, thereby being able to drive the pulley 2 to rotate in the forward and reverse directions around its own central axis. This driving motor 4 is a conventional component of the prior art and can be a stepping motor.

[0031] The aforementioned strip-shaped belt body 3 has a designed length and has two free ends in the length direction. The strip-shaped belt body 3 is wound around the pulley 2, such that the two free ends of the strip-shaped belt body 3 are arranged on opposite sides of the pulley 2. By rotating the pulley 2 in the forward and reverse directions, the two free ends of the strip-shaped belt body 3 can move up and down. In this embodiment, the strip-shaped belt body 3 is preferably a rubber belt. A plurality of tooth grooves 21 are machined at intervals along the circumferential direction on the outer peripheral surface of the pulley 2. A tooth part 31 that cooperates with the tooth grooves 21 is machined on the side surface of the strip-shaped belt body 3. The tooth part 31 is arranged at intervals along the length direction of the strip-shaped belt body 3. By changing the mutual meshing of the tooth grooves 21 and the tooth part 31, the situation of slipping when the pulley 2 and the strip-shaped belt body 3 move relative to each other is prevented.

[0032] Gas detection devices 6 are connected to the two free ends of the above-mentioned strip body 3. These two gas detection devices 6 are used to detect different types of harmful gases. In the specific structural design, the gas detection device 6 includes a housing 62. Inlets 621 and outlets 622 are machined at both ends of the housing 62. A gas flow path is formed between the inlet 621 and the outlet 622. External air can enter the housing 62 through the inlet 621, flow through this gas flow path, and then be discharged from the outlet 622. The aforementioned gas detection sensor is fixed inside the housing 62 and is located between the inlet 621 and the outlet 622. The gas detection sensor comes into contact with the air flowing in the gas flow path, so as to detect harmful gases.

[0033] In this embodiment, two or more gas detection sensors can be assembled in the housing 62 to be able to detect different types of harmful gases. Among them, a wire passing port 623 will be machined in the housing 62, and the cable wires of each gas detection sensor pass through the wire passing port 623.

[0034] The aforementioned gas suction device 7 is installed at the bottom of the bracket 1, and the suction port of the gas suction device 7 is connected to the outlet end of the gas flow path of the two detection devices. The gas suction device 7 is an electric air pump in the prior art. Through the suction of the gas suction device 7, air flow can be guided into the two gas detection devices 6 and then discharged through the exhaust port of the gas suction device 7. A prolonging pipe 71 extending in a direction away from the gas detection device 6 is communicated with the exhaust port of the aforementioned gas suction device 7. The prolonging pipe 71 has a designed length to be able to guide the air discharged by the gas suction device 7 to a space away from the gas detection device 6 such as outdoors.

[0035] An accommodation space 11 is formed inside the above-mentioned bracket 1. The cable wires of the aforementioned gas detection sensors are arranged in this accommodation space 11 and are connected to an external controller. A communicating pipe 5 is arranged between the gas suction device 7 and the gas detection device 6 to be able to connect the above two. The above-mentioned communicating pipe 5 is accommodated in the accommodation space 11 to be able to provide better protection for the communicating pipe 5. The two gas detection devices 6 are arranged on opposite sides of the accommodation space 11. The communicating pipe 5 includes a first hose 51 and a second hose 52. Both the first hose 51 and the second hose 52 are PU pipes. The first hose 51 is connected between the outlets 622 of the two gas detection devices 6. The second hose 52 is connected between the first hose 51 and the suction port of the gas suction device 7 through a three-way valve.

[0036] In this embodiment, the above-mentioned gas detection device 6 includes an assembly plate 61. The aforementioned housing 62 is fixedly installed on the assembly plate 61. The assembly plate 61 is connected to the free end of the strip-shaped belt body 3. A counterweight 63 for increasing the weight of the gas detection device 6 is installed on the assembly plate 61. The counterweight 63 can increase the overall weight of the gas detection device 6, so that the portions of the strip-shaped belt body 3 on both sides of the pulley 2 can be in a straightened state, effectively improving the stability of the gas detection device 6 during lifting and lowering, and at the same time preventing the strip-shaped belt body 3 and the pulley 2 from slipping when moving relative to each other.

[0037] On the bracket 1, chutes 12 extending vertically are processed corresponding to the gas detection devices 6 on both sides. A slide rod 611 is processed on the assembly plate 61. The slide rod 611 is vertically movably arranged in the chute 12. Through the mutual cooperation of the slide rod 611 and the chute 12, the overall movement of the gas detection device 6 on the bracket 1 can be made more smooth and stable.

[0038] In this embodiment, the aforementioned drive motor 4 and the gas suction device 7 are connected to the controller. The controller is embedded with a control program to be able to control the drive motor 4 to move regularly, thereby regularly controlling the rotation of the pulley 2, and further being able to control the gas detection device 6 to move up and down regularly by a certain height.

[0039] During specific use, the bracket 1 is placed in an indoor environment. The pulley 2 rotates in both forward and reverse directions to drive the free end of the strip-shaped belt body 3 to move up and down, thereby realizing the position adjustment of the gas detection device 6 in the height direction. Under the suction of the gas suction device 7, air is synchronously introduced into the two gas detection devices 6 through the air inlet 621 and discharged through the extension pipe 71. The harmful gas is detected at the current height position through the gas detection sensor. In the above manner, the free end of the strip-shaped belt body 3 can move to positions close to the bottom and top of the bracket 1, so as to be able to adjust the lifting height of the gas detection device 6 within a large range to detect the harmful gas near the ground. The detected harmful gas can be discharged to a space far from the gas detection device 6 to prevent the detected harmful gas from accumulating and effectively improving the detection effect of the indoor environment.

[0040] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made using the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An indoor harmful gas detection device, comprising a bracket, a lifting mechanism, a gas detection device, and a gas suction device; characterized in that: The lifting mechanism comprises a pulley, a driving motor, and a strip belt; the pulley is arranged on the top of the bracket and rotates around its own central axis; the driving motor is arranged on the bracket and is used to drive the pulley to rotate in positive and negative directions around its own central axis; The strip-shaped belt body is wound around the pulley and has two free ends arranged on opposite sides of the pulley; The gas detection device is arranged on the free end of each of the strip-shaped belt bodies; the gas detection device has a gas flow path and a gas detection sensor arranged on the gas flow path; The gas suction device is arranged at the bottom of the bracket, and the suction port of the gas suction device is connected to the outlet end of the gas flow path of the two detection devices; the exhaust port of the gas suction device is provided with an extension tube extending in a direction away from the gas detection device.

2. The indoor harmful gas detection device according to claim 1, characterized in that: The gas detection device comprises an assembly plate; the assembly plate is connected to the free end of the strip-shaped belt body; a counterweight body for increasing the weight of the gas detection device is arranged on the assembly plate.

3. The indoor harmful gas detection device according to claim 2, characterized in that: The bracket is provided with a slide groove extending vertically; the assembly plate is provided with a slide rod; the slide rod is movably arranged in the slide groove up and down.

4. The indoor harmful gas detection device according to claim 1, characterized in that: A connecting pipe is arranged between the gas suction device and the gas detection device; a storage space for accommodating the connecting pipe is arranged inside the bracket; and two gas detection devices are arranged on opposite sides of the storage space.

5. The indoor harmful gas detection device according to claim 4, characterized in that: The connecting pipe includes a first hose and a second hose; the first hose is connected between the outlet ends of the gas flow paths of the two gas detection devices; and the second hose is connected between the first hose and the suction port of the gas suction device.

6. The indoor harmful gas detection device according to claim 1, characterized in that: The outer circumferential surface of the pulley is provided with tooth grooves at intervals in the circumferential direction; the side surface of the strip belt body is provided with teeth matching with the tooth grooves; the teeth are arranged at intervals along the length direction of the strip belt body.

7. The indoor harmful gas detection device according to claim 1, characterized in that: The gas detection device comprises a shell; the shell is provided with an air inlet and an air outlet; the gas flow path is formed between the air inlet and the air outlet; the gas detection sensor is arranged inside the shell and located between the air inlet and the air outlet.

8. The indoor harmful gas detection device according to claim 1, characterized in that: Each of the gas detection devices includes at least one group of gas detection sensors.

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