High-precision multifunctional combustible gas detector

Abstract

The utility model belongs to the technical field of gas detection equipment, and discloses a high-precision multifunctional combustible gas detector which comprises a detector body, a gas introduction pipe is fixedly arranged on the bottom surface of the detector body, and a filter screen body is fixedly arranged at the bottom of the inner side of the gas introduction pipe. A connecting shaft is rotationally arranged in the middle of the filter screen body, a cleaning brush is fixedly arranged on the other side of the connecting shaft, and a connecting frame is fixedly arranged on one side of the bottom of the cleaning brush. By means of the scheme, the problem that a large amount of dust is accumulated at a pipeline inlet after a gas detector is used for a long time is solved; the situation that the follow-up detection result is affected due to the fact that the filter screen is blocked due to dust accumulation is avoided, the safety of the device is improved, the safety of workers in a scene is guaranteed, and the possibility of accidents is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas detection equipment, specifically a high-precision multifunctional combustible gas detector. Background Technology

[0002] A combustible gas detector is a typical gas detection device installed in explosive hazardous environments. It converts the concentration of combustible gas at the scene into an electrical signal and transmits it to monitoring equipment located in a safe area to monitor the concentration of combustible gas at the scene. During the design and construction of combustible gas detectors, relevant standards and requirements should be followed.

[0003] In reality, after prolonged use, a large amount of dust accumulates in the gas pipes of detectors. If this dust is not cleaned in time, it will accumulate more and more, eventually clogging the filter. Once the filter is clogged, gas will have difficulty entering the detector, rendering the detector ineffective. If the level of combustible or toxic gas in the area exceeds the standard and the alarm cannot be triggered in time, an accident will inevitably occur.

[0004] Meanwhile, the patent specification with application number CN 215493494 U discloses a combustible gas detector, including a detector body. Fixing blocks are fixedly connected to both sides of the back surface of the detector body. An elongated block is provided on the rear side of the fixing blocks. A placement groove is opened on one side of the elongated block. Guide grooves are opened at the top and bottom of the inner cavity of the placement groove. A guide block is slidably connected to the inner cavity of the guide groove.

[0005] However, the following problems were found in the implementation of the relevant technology: after long-term use, a lot of dust will inevitably accumulate at the detection point of the utility model. If the staff is careless and uses a detector with a lot of dust, the detection data of the detector will lose its reference value, which may lead to accidents. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a high-precision, multi-functional combustible gas detector with self-cleaning advantages. This invention solves the problem of dust accumulation at the inlet of the gas detector's pipe after prolonged use, preventing dust buildup from clogging the filter and affecting subsequent detection results. This improves the safety of the device, ensures the safety of personnel in the scene, and reduces the possibility of accidents.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision multifunctional combustible gas detector, comprising a detector body, a gas inlet pipe fixedly disposed on the bottom surface of the detector body, a filter screen body fixedly disposed on the inner bottom of the gas inlet pipe, a connecting shaft rotatably disposed in the middle of the filter screen body, a cleaning brush fixedly disposed on the other side of the connecting shaft, a connecting frame fixedly disposed on one side of the bottom of the cleaning brush, a gear sleeve fixedly disposed on the other side of the connecting frame, a main gear meshing with the outer side of the gear sleeve, and a motor fixedly disposed inside the main gear.

[0008] Preferably, a fixing sleeve is slidably provided on the outer side of the gas inlet pipe, a sliding shaft is slidably provided on the inner side of the top of the fixing sleeve, a spring is sleeved on the outer side of the sliding shaft, and a round head is fixedly provided on one end of the sliding shaft, with the round head fitting against the spring.

[0009] Preferably, a sliding groove is provided on the outer side of the gas inlet pipe, and the round head slides inside the sliding groove.

[0010] Preferably, a sealing ring is fixedly installed inside the gas inlet pipe, and the sealing ring is fitted with the fixing sleeve.

[0011] Preferably, a bearing is fixedly installed on the outer bottom of the gas inlet pipe, and the bearing is rotatably connected to the gear sleeve.

[0012] Preferably, a plum blossom sleeve is fixedly provided on the outer side of the fixing sleeve, and the main gear is fixedly connected to the plum blossom sleeve.

[0013] Preferably, a plurality of fixing feet are fixedly provided on the outer side of the detector body, and an alarm is fixedly provided on the outer side of the detector body.

[0014] Preferably, the detector body is internally equipped with an electrochemical sensor and a PID photoionization sensor.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a motor to drive the main gear to rotate, which in turn drives the gear sleeve, which in turn drives the connecting frame, which in turn drives the cleaning brush. The cleaning brush is connected to the filter screen body via a connecting shaft. Simultaneously, the cleaning brush sweeps away dust from the outside of the filter screen body as it rotates, keeping the area clean and tidy. This utility model solves the problem of a large amount of dust accumulating at the inlet of the gas detector's pipe after prolonged use, preventing the filter screen from becoming clogged due to dust accumulation, thus affecting subsequent test results. This improves the safety of the device, ensures the safety of personnel in the scene, and reduces the possibility of accidents.

[0017] 2. This utility model involves rotating the plum blossom sleeve, which drives the fixed sleeve, which in turn drives the round head to rotate. The round head pushes the outer spring of the sliding shaft, causing it to move backward. At this point, it can be removed along the sliding groove and then cleaned. This method is effective for stubborn dust or dust that has accumulated due to negligence on the part of the staff. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main gear mounting structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the gas inlet pipe of this utility model;

[0021] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0022] Figure 5 This is a schematic diagram of the spring mounting structure of this utility model.

[0023] In the diagram: 1. Detector body; 2. Gas inlet pipe; 3. Filter body; 4. Connecting shaft; 5. Cleaning brush; 6. Connecting frame; 7. Gear sleeve; 8. Main gear; 9. Motor; 10. Plum blossom sleeve; 11. Fixing sleeve; 12. Sliding shaft; 13. Spring; 14. Round head; 15. Sliding groove; 16. Sealing ring; 17. Bearing; 18. Fixing foot; 19. Alarm. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 5As shown, this utility model provides a high-precision multifunctional combustible gas detector, including a detector body 1. A gas inlet pipe 2 is fixedly installed on the bottom surface of the detector body 1. A filter body 3 is fixedly installed on the inner bottom of the gas inlet pipe 2. A connecting shaft 4 is rotatably installed in the middle of the filter body 3. A cleaning brush 5 is fixedly installed on the other side of the connecting shaft 4. A connecting frame 6 is fixedly installed on one side of the bottom of the cleaning brush 5. A gear sleeve 7 is fixedly installed on the other side of the connecting frame 6. A main gear 8 is meshed with the outer side of the gear sleeve 7. A motor 9 is fixedly installed inside the main gear 8. The motor 9 drives the main gear 8 to rotate. The main gear 8 drives the gear sleeve 7, which drives the connecting frame 6. The connecting frame 6 drives the cleaning brush 5. The cleaning brush 5 is connected to the filter body 3 through the connecting shaft 4. At the same time, when the cleaning brush 5 rotates, it cleans the dust on the outside of the filter body 3, thereby keeping the area clean and tidy. This avoids the filter being blocked due to dust accumulation, which would affect the subsequent detection results. This improves the safety of the device, ensures the safety of personnel in the scene, and reduces the possibility of accidents.

[0026] Specifically, a fixed sleeve 11 is slidably provided on the outer side of the gas inlet pipe 2, a sliding shaft 12 is slidably provided on the inner side of the top of the fixed sleeve 11, a spring 13 is sleeved on the outer side of the sliding shaft 12, a round head 14 is fixedly provided on one end of the sliding shaft 12, and the round head 14 is in contact with the spring 13, and the spring 13 controls the rebound and pushing of the round head 14.

[0027] Furthermore, a sliding groove 15 is provided on the outer side of the gas inlet pipe 2, and the round head 14 slides inside the sliding groove 15. The sliding groove 15 provides a track for the movement of the round head 14 and also fixes it.

[0028] Furthermore, a sealing ring 16 is fixedly installed inside the gas inlet pipe 2, and the sealing ring 16 fits against the fixing sleeve 11. The fixing sleeve 11 ensures the sealing of the device by squeezing the sealing ring 16, thereby avoiding the problem of air leakage.

[0029] It is worth noting that a bearing 17 is fixedly installed on the outer bottom of the gas inlet pipe 2, and the bearing 17 is rotatably connected to the gear sleeve 7. The bearing 17 can reduce the friction force experienced by the gear sleeve 7 when it rotates.

[0030] It is worth noting that a plum blossom sleeve 10 is fixedly provided on the outer side of the fixed sleeve 11, and the main gear 8 is fixedly connected to the plum blossom sleeve 10. The outer side of the plum blossom sleeve 10 is provided with multiple grooves to increase friction.

[0031] It is worth mentioning that multiple fixing feet 18 are fixedly installed on the outside of the detector body 1, and an alarm 19 is fixedly installed on the outside of the detector body 1. The fixing feet 18 are used to install the device in the required scene, and the alarm 19 is used to sound an alarm.

[0032] It is worth emphasizing that the detector body 1 is equipped with an electrochemical sensor and a PID photoionization sensor. The electrochemical sensor is used to detect toxic and harmful gases such as carbon monoxide, hydrogen sulfide and combustible gases, while the PID photoionization sensor is suitable for detecting volatile organic compounds and low concentrations of combustible gases, thus demonstrating the multifunctionality of the device.

[0033] Among them, motor 9 is existing technology and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0034] Working principle:

[0035] When using a high-precision multi-functional combustible gas detector, firstly, the detector body 1 is fixed in the scene requiring real-time monitoring using the fixing feet 18 on the outside. Gas in the scene enters the detector body 1 through the gas inlet pipe 2 and is then detected. If the level of combustible gas or other toxic or harmful gas in the scene exceeds the standard, the alarm 19 will sound an alarm to remind people to pay attention to safety. After long-term use, the gas inlet pipe 2 will accumulate a lot of dust. At this time, the switch of the motor 9 on the top surface of the plum blossom sleeve 10 needs to be turned on. The motor 9 drives the main gear 8 to rotate, which in turn drives the gear sleeve 7. The gear sleeve 7 drives the connecting frame 6, which in turn drives the cleaning brush 5. The cleaning brush 5 is connected to the filter body 3 through the connecting shaft 4. Simultaneously, the cleaning brush 5 cleans the dust on the outside of the filter body 3 as it rotates, keeping the area clean and preventing blockages that could obstruct gas flow and affect subsequent detection results. For stubborn dust, or dust that is difficult to clean due to staff negligence, a tool can be used to forcibly remove it. Place the tool on the outside of the plum blossom sleeve 10, rotate the plum blossom sleeve 10, the plum blossom sleeve 10 drives the fixed sleeve 11, the fixed sleeve 11 drives the round head 14 to rotate, the round head 14 pushes the spring 13 on the outside of the sliding shaft 12, thus moving backward. Then it can be removed along the position of the sliding groove 15, and then cleaned. The internal sealing ring 16 is mainly to increase the sealing of the device and prevent air leakage, while the bearing 17 reduces the friction force on the gear sleeve 7 when rotating. This utility model solves the problem of a large amount of dust accumulating at the inlet of the gas detector after long-term use, avoids the situation where the filter screen is blocked due to dust accumulation, thus affecting the subsequent detection results, improves the safety of the device, ensures the safety of the staff in the scene, and reduces the possibility of accidents.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision multi-functional combustible gas detector comprising a detector body (1), characterized in that: The bottom surface of the detector body (1) is fixedly provided with a gas introduction pipe (2), the inner bottom of the gas introduction pipe (2) is fixedly provided with a filter screen body (3), the middle part of the filter screen body (3) is rotatably provided with a connecting shaft (4), the other side of the connecting shaft (4) is fixedly provided with a cleaning brush (5), the bottom side of the cleaning brush (5) is fixedly provided with a connecting frame (6), the other side of the connecting frame (6) is fixedly provided with a gear sleeve (7), the outer side of the gear sleeve (7) is meshingly connected with a main gear (8), and the inner part of the main gear (8) is fixedly provided with a motor (9).

2. A high-precision multi-functional combustible gas detector according to claim 1, characterized in that: The outer side of the gas introduction pipe (2) is slidably provided with a fixing sleeve (11), the top inner side of the fixing sleeve (11) is slidably provided with a sliding shaft (12), the outer side of the sliding shaft (12) is sleeved with a spring (13), one end of the sliding shaft (12) is fixedly provided with a round head (14), and the round head (14) is attached to the spring (13).

3. The high-precision multi-functional combustible gas detector according to claim 1, characterized in that: The outer side of the gas introduction pipe (2) is provided with a sliding groove (15), and the round head (14) slides in the sliding groove (15).

4. The high-precision multi-functional combustible gas detector according to claim 1, characterized in that: The inner part of the gas introduction pipe (2) is fixedly provided with a sealing ring (16), and the sealing ring (16) is attached to the fixing sleeve (11).

5. The high-precision multi-functional combustible gas detector according to claim 1, characterized in that: The bottom outer side of the gas introduction pipe (2) is fixedly provided with a bearing (17), and the bearing (17) is rotatably connected with the gear sleeve (7).

6. A high precision multi-functional combustible gas detector according to claim 2, characterized in that: The outer side of the fixing sleeve (11) is fixedly provided with a plum blossom sleeve (10), and the main gear (8) is fixedly connected with the plum blossom sleeve (10).

7. The high precision multi-functional combustible gas detector according to claim 1, wherein: The outer side of the detector body (1) is fixedly provided with a plurality of fixing feet (18), and the outer side of the detector body (1) is fixedly provided with an alarm (19).

8. The high precision multi-functional combustible gas detector according to claim 1, wherein: The inner part of the detector body (1) is provided with an electrochemical sensor and a PID photoion sensor.

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