A gas collection device

Abstract

The utility model discloses a gas collection device, including smoke alarm collection device main part, the gas inlet end of smoke alarm collection device main part is connected with three -way piece through first gas pressure pipe, the straight pipe end of three -way piece is connected with tail cap through second gas pressure pipe, one end of tail cap and three -way piece all is equipped with sensor assembly, the outer wall of sensor assembly is provided with protection subassembly, sensor assembly contains sensor main part, and its inner chamber is equipped with filter tow, the utility model discloses through three -way piece, second gas pressure pipe, tail cap and sensor assembly, adopt integrated design, and the outer center suction port of sensor main part is semicircle recess to increase the collection surface, shorten the gas flow path, promote transmission efficiency and the correct rate of judgment, equip the hemispherical / cylindrical protective mesh cover simultaneously, and its dense mesh can prevent mosquito, chippings and other foreign matters from blocking key components (suction port, filter cotton, pipeline), prolongs the life of device.

Description

Technical Field

[0001] This utility model mainly relates to the field of gas collection technology, specifically a gas collection device. Background Technology

[0002] In modern industrial and public infrastructure sectors, such as substations, cable tunnels, and subway tunnels, gas safety monitoring is crucial. Substations contain densely packed electrical equipment, and malfunctions can lead to fires and smoke. Cable tunnels, with their long-term operation, are prone to releasing harmful gases due to overheating or short circuits. In the enclosed spaces of subway tunnels, sudden events such as fires or train malfunctions can cause smoke and harmful gases to accumulate. Failure to monitor these situations promptly will seriously threaten equipment safety and human lives; therefore, a gas collection device is needed to collect these gases.

[0003] Traditional gas sampling devices often employ a modified plastic T-junction structure. The two ends of a parallel tube are connected in series with plastic tubing, and a connector is screwed onto one end of the T-tube. This connector connects to a PVC flexible tube and is connected in series with a smoke filter cup. The filter cup contains filter cotton, and another PVC flexible tube is connected to its inlet to collect gas. However, this piecemeal design has significant drawbacks: irregular pipe connections and multiple flexible tube transitions result in complex gas flow paths, increasing airflow resistance and making it difficult for gas samples to quickly and fully enter the detection area. Furthermore, the non-integrated design of the filter and piping makes gas leakage prone to occur, further reducing the accuracy and stability of the detection data and failing to meet the practical needs of high-precision gas monitoring. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. It mainly provides a gas collection device to solve the technical problems mentioned in the background that traditional devices are piecemeal products with high gas flow resistance and low accuracy.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A gas collection device includes a smoke alarm collection device body. The air inlet of the smoke alarm collection device body is connected to a tee via a first air pressure pipe. The straight end of the tee is connected to a tail cap via a second air pressure pipe. A sensor assembly is installed at one end of both the tail cap and the tee. A protective component is provided on the outer wall of the sensor assembly.

[0007] The sensor assembly includes a sensor body with a filter cotton inside. One side of the filter cotton is tightly fitted with a filter cotton cover, and the filter cotton is used to filter the incoming gas.

[0008] The protective component includes a protective mesh cover, which can prevent insects or foreign objects from entering the sensor component and provide protection for the sensor component without affecting the normal flow of gas.

[0009] More preferably, the inner wall of the tail cover is provided with a thread structure that matches the threaded ring of the sensor body, and both the inside of the tail cover and the inside of the tee are provided with support blocks corresponding to the position of the filter cotton cover.

[0010] More preferably, a first sealing ring is fitted to the bottom outer side of the threaded ring of the sensor body.

[0011] More preferably, a gas inlet is provided at the outer center of the sensor body, and the outside of the inlet is designed as a semi-circular concave structure.

[0012] More preferably, the protective component includes a fixing ring, the outer wall of which is fitted with an mounting ring via a threaded structure, and the outer wall of the mounting ring is provided with anti-slip texture, and the outer wall of the mounting ring is connected to the protective mesh cover.

[0013] More preferably, a limiting ring is fitted on the outer wall of the fixing ring and near one side, and a second sealing ring is provided on one side of the mounting ring, and the height of the limiting ring is greater than the thickness of the second sealing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This gas collection device consists of a three-way connector, a second pressure pipe, a tail cap, and a sensor assembly. The sensor is mushroom-shaped with a filter inside. There is a gas inlet at the center of the sensor, and the inlet is designed with a semi-circular notch to increase the collection surface and improve the gas intake effect. The sensor assembly and the tail cap are screwed together with a threaded structure. The three-way connector and the tail cap are connected through the second pressure pipe. This integrated design shortens the gas flow distance, improves transmission efficiency, and ensures the accuracy of the collection device's judgment.

[0016] 2. This gas collection device, through its protective components, hemispherical or cylindrical protective mesh cover, with dense mesh on the surface, ensures air circulation while effectively blocking foreign objects such as mosquitoes and debris from entering the sensor components or pipelines. This prevents key components (such as gas inlet, filter, and pipelines) from being blocked, contaminated, or physically damaged, thus extending the service life of the device.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2This is a schematic diagram of the magnified structure of the data acquisition sensor of this utility model;

[0020] Figure 3 This is a fully enlarged cross-sectional view of the data acquisition sensor of this utility model;

[0021] Figure 4 This is a schematic diagram of the exploded magnified structure of the sensor assembly of this utility model;

[0022] Figure 5 This is an enlarged structural schematic diagram of the protective component of this utility model.

[0023] Numbering on the map:

[0024] 1. Main body of smoke alarm collection device; 2. First air pressure pipe; 3. T-joint; 4. Second air pressure pipe; 5. Tail cap; 6. Sensor assembly; 601. Sensor body; 602. First sealing ring; 603. Filter cotton; 604. Filter cotton cover; 7. Protective components; 701. Fixing ring; 702. Limiting ring; 703. Mounting ring; 704. Second sealing ring; 705. Protective mesh cover. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Please refer to the appendix carefully. Figure 1-5 A gas collection device includes a smoke alarm collection device body 1. The air inlet of the smoke alarm collection device body 1 is connected to a three-way connector 3 via a first air pressure pipe 2. The straight end of the three-way connector 3 is connected to a tail cap 5 via a second air pressure pipe 4. A sensor assembly 6 is installed at one end of both the tail cap 5 and the three-way connector 3. A protective assembly 7 is provided on the outer wall of the sensor assembly 6.

[0028] The sensor assembly 6 includes a sensor body 601, the inner cavity of which is provided with a filter cotton 603. One side of the filter cotton 603 is tightly attached to the filter cotton cover 604. The filter cotton 603 is used to filter the incoming gas.

[0029] The protective component 7 includes a protective mesh cover 705, which can prevent mosquitoes or foreign objects from entering the interior of the sensor component 6 and provide protection for the sensor component 6 without affecting the normal flow of gas.

[0030] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the inner wall of the tail cover 5 is provided with a thread structure that matches the threaded ring of the sensor body 601. The sensor assembly 6 can be firmly installed in the tail cover 5 by screwing. At the same time, the tail cover 5 and the three-way fitting 3 are provided with support blocks corresponding to the position of the filter cotton cover 604. When the sensor assembly 6 is installed in place, the support blocks can stably support the filter cotton cover 604. Furthermore, both the support blocks and the filter cotton cover 604 are provided with air circulation channels to ensure that the filtered air can circulate normally.

[0031] In this embodiment, as Figure 3 and Figure 4 As shown, a first sealing ring 602 is installed on the bottom of the outer side of the threaded ring of the sensor body 601. When the sensor assembly 6 is securely installed in the tail cover 5 by threaded connection, the first sealing ring 602 will fit tightly against the outer wall of the tail cover 5 to form a reliable sealing structure. This design can effectively prevent unfiltered gas from seeping in and ensure that the sensor only detects the target gas after it has been treated by the filter cotton 603, thereby improving the reliability of the detection.

[0032] In this embodiment, as Figure 2 and Figure 4 As shown, a gas inlet is provided at the outer center of the sensor body 601. The outside of the inlet is designed as a semi-circular concave structure. This structural design can increase the gas collection area and optimize the airflow direction, thereby improving the gas intake efficiency and ensuring that the sensor can acquire the target detection gas more quickly.

[0033] In this embodiment, as Figure 5 As shown, the protective assembly 7 consists of a fixing ring 701, a limiting ring 702, a mounting ring 703, a second sealing ring 704, and a protective mesh cover 705. The fixing ring 701 is installed on the outside of the sensor body 601, and its outer wall is provided with external threads. The inner wall of the mounting ring 703 is provided with matching internal threads. The two are detachably connected through the thread structure. The outer wall of the mounting ring 703 is provided with anti-slip texture to increase friction and facilitate manual installation or removal by operators. The protective mesh cover 705 is hemispherical or cylindrical, with densely distributed mesh holes. These mesh holes ensure that air can pass through smoothly while effectively blocking foreign objects such as mosquitoes and debris from entering the sensor assembly 6, thereby preventing foreign objects from clogging, contaminating, or physically damaging key components such as the gas inlet and filter cotton 603 of the sensor body 601.

[0034] In this embodiment, as Figure 5 As shown, a limiting ring 702 is fitted on the outer wall of the fixing ring 701 near one edge. An annular groove is provided on one end face of the mounting ring 703, and the second sealing ring 704 is embedded in the groove. A portion of the outer circumference of the second sealing ring 704 protrudes from the end face of the mounting ring 703. When the mounting ring 703 is screwed onto the fixing ring 701 through a threaded structure, the limiting ring 702 acts as a physical stop, which can limit the screwing depth of the mounting ring 703. This ensures the consistency of the installation position of the protective mesh cover 705 each time, avoiding over-screwing or under-screwing due to differences in the screwing force of the operator. This ensures the relative positional accuracy between the protective mesh cover 705 and the sensor assembly 6. At the same time, since the height of the limiting ring 702 is greater than the thickness of the second sealing ring 704, when the mounting ring 703 is tightened to the point where the limiting ring 702 contacts, a pre-tightening force will be generated on the second sealing ring 704. This pre-tightening force allows the second sealing ring 704 to deform fully, tightly filling the microscopic gap between the fixing ring 701 and the mounting ring 703, forming a reliable sealing barrier.

[0035] The specific operating procedure of this utility is as follows: In the application scenario of the device, the smoke alarm collection device body 1, the first air pressure pipe 2, the three-way fitting 3, the second air pressure pipe 4, the tail cap 5, the sensor assembly 6 and the protective assembly 7 can be modularly combined and assembled according to specific functional requirements. When the device is working, the pump in the smoke alarm collection device body 1 is started, and the outside gas enters the sensor assembly 6 through the protective mesh cover 705 of the protective assembly 7 (which is hemispherical or cylindrical with densely distributed mesh holes on the surface). The mesh cover can ensure smooth airflow and effectively block the intrusion of foreign objects such as mosquitoes and debris.

[0036] Gas enters the component through the gas inlet of the sensor body 601, first passing through the filter cotton 603 to intercept impurities and dust (the cavity of the sensor body 601 can house an electronic sensor, which is interconnected with the smoke alarm collection device body 1; this sensor provides key data support to the smoke alarm collection device body 1 through real-time monitoring and signal conversion of environmental parameters). The filtered gas then flows through the air circulation channels of the filter cotton cover 604 and the internal support block of the tail cover 5, directly entering the three-way connector 3 or flowing into the three-way connector 3 through the second pressure pipe 4, achieving multi-directional gas collection and expanding the sampling range. Subsequently, the gas enters the smoke alarm collection device body 1 through the first pressure pipe 2 (a conventional and mature device can be used, which will not be detailed here).

[0037] During maintenance, the fixing ring 701 and the mounting ring 703 are detachably connected by a threaded structure. The anti-slip texture on the outer wall of the mounting ring 703 facilitates disassembly and assembly. The protective mesh cover 705 can be removed for cleaning and maintenance. The sensor assembly 6 and the tail cover 5 are also connected by threads, allowing the sensor assembly 6 to be disassembled for easy replacement of the filter cotton 603 or internal maintenance.

[0038] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A gas collection device, comprising a smoke alarm collection device body (1), characterized in that: The air inlet of the main body (1) of the smoke alarm collection device is connected to the three-way fitting (3) through the first air pressure pipe (2). The straight end of the three-way fitting (3) is connected to the tail cap (5) through the second air pressure pipe (4). A sensor assembly (6) is installed at one end of both the tail cap (5) and the three-way fitting (3). A protective assembly (7) is provided on the outer wall of the sensor assembly (6). The sensor assembly (6) includes a sensor body (601) with a filter cotton (603) in its inner cavity. The filter cotton (603) is tightly attached to a filter cotton cover (604) on one side. The filter cotton (603) is used to filter the incoming gas. The protective component (7) includes a protective mesh cover (705), which can block mosquitoes or foreign objects from entering the sensor component (6) and provide protection for the sensor component (6) without affecting the normal flow of gas.

2. The gas collection device according to claim 1, characterized in that: The inner wall of the tail cover (5) is provided with a thread structure that matches the threaded ring of the sensor body (601), and the inside of the tail cover (5) and the inside of the three-way component (3) are provided with support blocks corresponding to the position of the filter cotton cover (604).

3. The gas collection device according to claim 1, characterized in that: The sensor body (601) has a first sealing ring (602) fitted at the bottom of the outer side of the threaded ring.

4. The gas collection device according to claim 1, characterized in that: The sensor body (601) has a gas inlet at its outer center, and the outside of the inlet is designed as a semi-circular concave structure.

5. A gas collection device according to claim 1, characterized in that: The protective component (7) includes a fixing ring (701), and an mounting ring (703) is installed on the outer wall of the fixing ring (701) through a threaded structure. The outer wall of the mounting ring (703) is provided with anti-slip texture, and the outer wall of the mounting ring (703) is connected to the protective mesh cover (705).

6. A gas collection device according to claim 5, characterized in that: A limiting ring (702) is fitted on the outer wall of the fixing ring (701) and near one side, and a second sealing ring (704) is provided on one side of the mounting ring (703), and the height of the limiting ring (702) is greater than the thickness of the second sealing ring (704).

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