Integrated methane detection device

Abstract

The utility model provides an integrated methane detection device and relates to the technical field of gas detection equipment. In the integrated methane detection device, an accommodating space is formed in a lower shell, and a first mounting hole and a second mounting hole which are communicated with the accommodating space are formed in the lower shell. The upper cover is connected to the lower shell to seal the accommodating space; an isolation supporting column is arranged on the side, close to the lower shell, of the upper cover. The electric control board assembly comprises a first circuit board and a second circuit board; the first circuit board and the second circuit board are both connected to the isolation supporting column, and the first circuit board and the second circuit board are spaced; the second circuit board is arranged on one side of the first circuit board away from the upper cover. The battery box is connected to the second circuit board. And the point type laser gas probe is connected to the lower shell through the first mounting hole. And the cable entry device is connected to the lower shell through the second mounting hole. According to the integrated methane detection device provided by the utility model, the technical problem that detection equipment is easy to damage due to poor protection measures in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection equipment, and more specifically, to an integrated methane detection device. Background Art

[0002] At present, the methane detection devices equipped on each underground mining and excavation equipment mainly consist of two parts: a methane power-off instrument host and a sensor, and the two are connected by a cable. Among them, the cable at the sensor end adopts a quick plug-and-play design. However, in the harsh underground environment, the cable is easily damaged, such as broken or skinned, which will affect the normal use of the equipment. In addition, due to the insufficient waterproof performance of the current equipment, the frequency of equipment damage is relatively high. Therefore, when installing the methane detection device on the mining and excavation equipment, its fixation and protection measures must be fully considered. Summary of the Utility Model

[0003] The technical problem solved by the utility model is how to improve the technical problem that the detection equipment in the prior art is easily damaged due to poor protection measures.

[0004] The embodiments of the utility model can be implemented as follows:

[0005] The utility model provides an integrated methane detection device, including:

[0006] A lower housing, which is internally provided with an accommodation space, and the lower housing is provided with a first mounting hole and a second mounting hole communicated with the accommodation space; the first mounting hole and the second mounting hole are located on two opposite sides of the lower housing;

[0007] An upper cover, which is connected to the lower housing to cover the accommodation space; one side of the upper cover close to the lower housing is provided with isolation support columns, and one end of the isolation support columns far away from the upper cover extends into the accommodation space;

[0008] An electronic control board assembly, including a first circuit board and a second circuit board; both the first circuit board and the second circuit board are connected to the isolation support columns, and the first circuit board and the second circuit board are spaced apart; the second circuit board is arranged on the side of the first circuit board far away from the upper cover;

[0009] A battery box, which is connected to the second circuit board and is located in the accommodation space;

[0010] A point-type laser gas probe, which is connected to the lower housing through the first mounting hole;

[0011] A cable inlet device, which is connected to the lower housing through the second mounting hole, and the cable inlet device has an inlet channel communicated with the accommodation space, and the inlet channel is used for introducing a cable into the accommodation space.

[0012] Optionally, the integrated methane detection device further includes a first seal; the first seal is disposed between the upper cover and the lower housing.

[0013] Optionally, a card slot is provided on the side of the upper cover close to the lower housing; the first seal is disposed in the card slot, and at least a part of the first seal extends out of the card slot.

[0014] Optionally, the point laser gas probe is in threaded fit with the first mounting hole.

[0015] Optionally, the integrated methane detection device further includes a second seal, and the second seal is pressed between the point laser gas probe and the lower housing.

[0016] Optionally, a counterbore is further provided on the lower housing, the counterbore is disposed at one end of the first mounting hole on the outer side of the lower housing, and the counterbore communicates with the first mounting hole; the point laser gas probe passes through the counterbore and cooperates with the first mounting hole; the aperture of the counterbore is larger than the aperture of the first mounting hole; the second seal is disposed in the counterbore.

[0017] Optionally, the integrated methane detection device further includes a plurality of fixing members, and the plurality of fixing members pass through the upper cover and are connected to the lower housing, and the connection lines of the plurality of fixing members form a regular polygon.

[0018] Optionally, the fixing member is a screw.

[0019] Optionally, the point laser gas probe internally has an air chamber protection net, and a waterproof and breathable film is provided on the air chamber protection net.

[0020] Optionally, the cable introduction device includes a channel pipe and a sealing connector; one end of the channel pipe is connected to the lower housing through the second mounting hole, and an introduction channel is formed in the channel pipe; the sealing connector is connected to the other end of the channel pipe and is used for pressing the introduced cable and sealing the gap between the cable and the introduction channel.

[0021] The beneficial effects of the integrated methane detection device provided by the present utility model compared with the prior art include:

[0022] After the integrated methane detection device is assembled, the electronic control board assembly, the battery box, and the introduced cable are all located inside the accommodation space. Therefore, the upper cover and the lower housing can provide protection for the electronic control board assembly, the battery box, and the introduced cable, improve the safety of the electronic control board assembly, the battery box, and the cable, and increase the protection measures. Furthermore, the technical problem that the detection equipment in the prior art is easily damaged due to poor protection measures is solved.

[0023] Furthermore, by setting up sealing structures such as the first seal, the second seal, the waterproof and breathable membrane, and the sealing connectors, the waterproof performance of the integrated methane detection device can be improved, further enhancing the safety of the integrated methane detection device and addressing the problem of easy damage to detection equipment in the prior art due to insufficient waterproof performance.

[0024] In addition, since the electronic control board assembly is connected to the upper cover through the isolation support columns, and the battery box is connected to the second circuit board, the upper cover, the electronic control board assembly, and the battery box form an integral whole. In the case of a malfunction of the integrated methane detection device, the disassembly of the upper cover, the electronic control board assembly, and the battery box can be directly completed by removing the upper cover, facilitating the maintenance of the integrated methane detection device and the replacement of the entire upper cover, with convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic cross-sectional structure diagram of the integrated methane detection device provided in the embodiments of the present application;

[0027] Figure 2 It is a schematic perspective structure diagram of the lower housing provided in the embodiments of the present application;

[0028] Figure 3 It is a schematic structure diagram of the first assembly method of the integrated methane detection device provided in the embodiments of the present application;

[0029] Figure 4 It is a schematic structure diagram of the second assembly method of the integrated methane detection device provided in the embodiments of the present application;

[0030] Figure 5 It is a schematic structure diagram of the third assembly method of the integrated methane detection device provided in the embodiments of the present application;

[0031] Figure 6 It is a schematic structure diagram of the fourth assembly method of the integrated methane detection device provided in the embodiments of the present application.

[0032] Icons: 10 - Integrated methane detection device; 100 - Lower housing; 101 - Accommodating space; 102 - First mounting hole; 103 - Second mounting hole; 200 - Upper cover; 210 - Isolation support column; 220 - First seal; 300 - Electric control board assembly; 310 - First circuit board; 320 - Second circuit board; 400 - Battery box; 500 - Point laser gas probe; 510 - Second seal; 511 - Sunk groove; 600 - Cable entry device; 610 - Channel tube; 620 - Sealing connector; 700 - Fixing piece. Detailed implementation mode

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0037] In addition, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0038] It should be noted that the features in the embodiments of the present utility model can be combined with each other without conflict.

[0039] Please refer to Figure 1, in the embodiment of the present application, an integrated methane detection device 10 is provided. The integrated methane detection device 10 can be applied to underground coal mines and other occasions with explosive gases (methane mixture coal dust), and is used on large and medium-sized underground mining equipment and other electromechanical equipment to continuously monitor the methane concentration in the air flow near the equipment. It should be noted that the integrated methane detection device 10 provided in this embodiment can solve the technical problem in the prior art that the detection equipment is easily damaged due to poor protection measures.

[0040] In this embodiment, please refer to Figure 1 and Figure 2 , the integrated methane detection device 10 includes a lower housing 100, an upper cover 200, an electronic control board assembly 300, a battery box 400, a point-type laser gas probe 500, and a cable introduction device 600. Among them, the lower housing 100 is provided with an accommodation space 101, and the lower housing 100 is provided with a first mounting hole 102 and a second mounting hole communicating with the accommodation space 101; the first mounting hole 102 and the second mounting hole are located on opposite sides of the lower housing 100. The upper cover 200 is connected to the lower housing 100 to cover the accommodation space 101; one side of the upper cover 200 close to the lower housing 100 is provided with an isolation support column 210, and one end of the isolation support column 210 away from the upper cover 200 extends into the accommodation space 101. The electronic control board assembly 300 includes a first circuit board 310 and a second circuit board 320; both the first circuit board 310 and the second circuit board 320 are connected to the isolation support column 210, and the first circuit board 310 and the second circuit board 320 are spaced apart; the second circuit board 320 is arranged on the side of the first circuit board 310 away from the upper cover 200. The battery box 400 is connected to the second circuit board 320, and the battery box 400 is located in the accommodation space 101. The point-type laser gas probe 500 is connected to the lower housing 100 through the first mounting hole 102. The cable introduction device 600 is connected to the lower housing 100 through the second mounting hole, and the cable introduction device 600 has an introduction channel communicating with the accommodation space 101, and the introduction channel is used for introducing a cable into the accommodation space 101.

[0041] It should be noted that the upper cover 200 is also provided with a display screen, control buttons, a power display lamp, an alarm display lamp, a buzzer alarm, etc. And the display screen, control buttons, power display lamp, alarm display lamp, and buzzer alarm are all connected to the electronic control board assembly 300 to realize functions such as parameter setting, alarm triggering, and status display of the integrated methane detection device 10. Among them, the display screen, control buttons, power display lamp, alarm display lamp, buzzer alarm, etc. are all prior art and will not be elaborated here.

[0042] As described above, after the integrated methane detection device 10 is assembled, the electronic control board assembly 300, the battery box 400, and the introduced cable are all located inside the accommodation space 101. Thus, the upper cover 200 and the lower housing 100 can provide protection for the electronic control board assembly 300, the battery box 400, and the introduced cable, improving the safety of the electronic control board assembly 300, the battery box 400, and the cable and increasing the protection measures. Furthermore, it can solve the technical problem in the prior art that the detection device is prone to damage due to poor protection measures.

[0043] In addition, a PC film with strong waterproof property can be pasted on the upper cover 200, and a waterproof sound-transmitting film can be installed at the buzzer alarm to further ensure the sealing performance of the integrated methane detection device 10 and improve the waterproof level of the detection device.

[0044] Furthermore, in this embodiment, the integrated methane detection device 10 further includes a first seal 220; the first seal 220 is arranged between the upper cover 200 and the lower housing 100. The first seal 220 can seal the gap between the upper cover 200 and the lower housing 100 to improve the waterproof performance between the upper cover 200 and the lower housing 100 and prevent water from entering the accommodation space 101 and causing faults in the integrated methane detection device 10.

[0045] Optionally, a slot is provided on the side of the upper cover 200 close to the lower housing 100; the first seal 220 is arranged in the slot, and at least part of the first seal 220 extends out of the slot. Through the setting of the slot, a limiting effect can be provided for the first seal 220 to prevent the first seal 220 from shifting in position; and it is also convenient for the quick installation of the first seal 220. And by making part of the first seal 220 extend out of the slot, it is convenient for the upper cover 200 and the lower housing 100 to jointly press the first seal 220 during assembly to ensure that the first seal 220 can provide a sealing and waterproof function.

[0046] It should be noted that, in this embodiment, the first seal 220 is an O-ring.

[0047] In this embodiment, the point-type laser gas probe 500 is in threaded fit with the first mounting hole 102. In other words, one end of the point-type laser gas probe 500 is provided with threads, and the first mounting hole 102 is set as a threaded hole. Thus, the connection between the point-type laser gas probe 500 and the lower housing 100 can be realized by means of threaded connection. Among them, since the point-type laser gas probe 500 is more prone to failure compared with other devices, setting it to be in threaded connection with the lower housing 100 can facilitate the replacement of the point-type laser gas probe 500 while ensuring the stable assembly of the point-type laser gas probe 500 and the lower housing 100.

[0048] Further, the integrated methane detection device 10 further includes a second seal 510, and the second seal 510 is pressed between the point laser gas probe 500 and the lower housing 100. By using the second seal 510 to seal the gap between the point laser gas probe 500 and the peripheral wall of the first mounting hole 102, the waterproof performance of the integrated methane detection device 10 can be further improved, preventing water from entering and damaging the point laser gas probe 500.

[0049] Optionally, a sink 511 is further formed on the lower housing 100. The sink 511 is provided at one end of the first mounting hole 102 located outside the lower housing 100, and the sink 511 communicates with the first mounting hole 102; the point laser gas probe 500 passes through the sink 511 and mates with the first mounting hole 102; the aperture of the sink 511 is larger than that of the first mounting hole 102; the second seal 510 is disposed in the sink 511. When the point laser gas probe 500 is assembled to the first mounting hole 102 by threading, as the point laser gas probe 500 is screwed in, the second seal 510 can be pressed by the point laser gas probe 500, so as to seal between the point laser gas probe 500 and the peripheral wall of the first mounting hole 102 through the second seal 510.

[0050] Among them, the second seal 510 is realized by using a rubber gasket for sealing.

[0051] In this embodiment, the integrated methane detection device 10 further includes a plurality of fixing members 700. The plurality of fixing members 700 pass through the upper cover 200 and are connected to the lower housing 100, and the connection lines of the plurality of fixing members 700 form a regular polygon. Among them, since the integrated methane detection device 10 is restricted by the position in the application scenario, setting the plurality of fixing members 700 connecting the upper cover 200 and the lower housing 100 as a regular polygon can adjust the installation posture of the upper cover 200 on the lower housing 100 according to the actual situation. For example, Figures 3 to 6 , when the upper cover 200 is kept in the positive setting, the orientation of the point laser gas probe 500 and the cable inlet device 600 can be realized by adjusting the posture of the lower housing 100 (equivalent to adjusting the posture of the upper cover 200 on the lower housing 100), so as to conveniently overcome the problem of limited installation position of the integrated methane detection device 10.

[0052] Optionally, the fixing member 700 is a screw. On the one hand, it can ensure that the upper cover 200 is stably assembled on the lower housing 100. On the other hand, it can also facilitate the disassembly of the upper cover 200, so as to facilitate the posture adjustment of the upper cover 200 relative to the lower housing 100.

[0053] The inside of the point laser gas probe 500 is provided with a gas chamber protection net (not marked in the figure). Among them, the gas chamber protection net, the installation position and the installation method of the gas chamber protection net in the point laser gas probe 500 are prior arts and will not be elaborated here. In this embodiment, a waterproof and breathable membrane (not marked in the figure) is provided on the gas chamber protection net. By adding a waterproof and breathable membrane on the gas chamber protection net, the waterproof performance of the point laser gas probe 500 can be further improved, thereby further improving the problem of easy damage caused by poor waterproof performance in the prior art.

[0054] In this embodiment, the cable inlet device 600 includes a channel pipe 610 and a sealing connector 620; one end of the channel pipe 610 is connected to the lower housing 100 through a second mounting hole, and an inlet channel is formed inside the channel pipe 610; the sealing connector 620 is connected to the other end of the channel pipe 610 and is used to compress the introduced cable and seal the gap between the cable and the inlet channel. During the assembly process, first pass the cable through the sealing connector 620, and then pass one end of the cable passing through the sealing connector 620 into the channel pipe 610 to introduce the cable into the accommodation space 101 through the channel pipe 610; then connect the sealing connector 620 to the end of the channel pipe 610 away from the lower housing 100 and compress the cable through the sealing connector 620. Thus, the gap between the cable and the inlet channel is waterproof sealed.

[0055] In summary, after the integrated methane detection device 10 is assembled, the electronic control board assembly 300, the battery box 400, and the introduced cable are all located inside the accommodation space 101. Thus, the upper cover 200 and the lower housing 100 can provide protection for the electronic control board assembly 300, the battery box 400, and the introduced cable, improving the safety of the electronic control board assembly 300, the battery box 400, and the cable, and increasing the protection measures. Furthermore, the technical problem in the prior art that the detection device is easily damaged due to poor protection measures is improved. Moreover, by adopting an integrated setting method, problems such as the separate installation and fixation of the traditional power-off instrument host and the sensor and poor cable contact are avoided. At the same time, the integrated methane detection device 10 has a compact structure, a greatly reduced housing size, an improved overall strength, and is not easily damaged. Further, by providing sealing structures such as the first seal 220, the second seal 510, the waterproof breathable film, and the sealing connector 620, the waterproof performance of the integrated methane detection device 10 can be improved, further enhancing the safety of the integrated methane detection device 10 and improving the problem in the prior art that the detection device is easily damaged due to insufficient waterproof performance. In addition, since the electronic control board assembly 300 is connected to the upper cover 200 through the isolation support columns 210, and the battery box 400 is connected to the second circuit board 320, the upper cover 200, the electronic control board assembly 300, and the battery box 400 form an integral body. In the case of a failure of the integrated methane detection device 10, the disassembly of the upper cover 200, the electronic control board assembly 300, and the battery box 400 can be directly completed by removing the upper cover 200, facilitating the maintenance of the integrated methane detection device 10 and the replacement of the entire upper cover 200, and the maintenance is convenient.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An integrated methane detection device, characterized in that: include: A lower shell body, wherein a receiving space is provided therein, and a first mounting hole and a second mounting hole communicating with the receiving space are provided on the lower shell body; the first mounting hole and the second mounting hole are located on two opposite sides of the lower shell body; An upper cover is connected to the lower shell to cover the accommodation space; an isolation support column is provided on a side of the upper cover close to the lower shell, and an end of the isolation support column away from the upper cover extends into the accommodation space; The electric control board assembly comprises a first circuit board and a second circuit board; the first circuit board and the second circuit board are both connected to the isolation support column, and the first circuit board and the second circuit board are spaced apart; the second circuit board is arranged on a side of the first circuit board away from the upper cover; A battery box connected to the second circuit board, and the battery box is located in the accommodation space; A point-type laser gas probe connected to the lower housing through the first mounting hole; A cable introduction device is connected to the lower shell through the second mounting hole, and the cable introduction device has an introduction channel connected to the accommodating space, and the introduction channel is used for introducing the cable into the accommodating space.

2. The integrated methane detection device according to claim 1, characterized in that: The integrated methane detection device also includes a first sealing member; the first sealing member is arranged between the upper cover and the lower shell.

3. The integrated methane detection device according to claim 2, characterized in that: A slot is provided on the side of the upper cover close to the lower shell; the first sealing member is arranged in the slot, and the first sealing member at least partially extends out of the slot.

4. The integrated methane detection device according to claim 1, characterized in that: The point-type laser gas probe is threadedly matched with the first mounting hole.

5. The integrated methane detection device according to claim 4, characterized in that: The integrated methane detection device further includes a second sealing member, which is pressed between the point-type laser gas probe and the lower shell.

6. The integrated methane detection device according to claim 5, characterized in that: A sink groove is also provided on the lower shell body, and the sink groove is provided at one end of the first mounting hole located on the outside of the lower shell body, and the sink groove is connected with the first mounting hole; the point laser gas probe passes through the sink groove and cooperates with the first mounting hole; the aperture of the sink groove is larger than the aperture of the first mounting hole; the second sealing member is provided in the sink groove.

7. The integrated methane detection device according to claim 1, characterized in that: The integrated methane detection device further includes a plurality of fixing parts, wherein the plurality of fixing parts pass through the upper cover and are connected to the lower shell body, and a connecting line of the plurality of fixing parts forms a regular polygon.

8. The integrated methane detection device according to claim 7, characterized in that: The fixing member is a screw.

9. The integrated methane detection device according to claim 1, characterized in that: The point-type laser gas probe has an air chamber protection net inside, and a waterproof and breathable membrane is provided on the air chamber protection net.

10. The integrated methane detection device according to claim 1, characterized in that: The cable introduction device includes a channel tube and a sealing connector; one end of the channel tube is connected to the lower shell through the second mounting hole, and the introduction channel is formed in the channel tube; the sealing connector is connected to the other end of the channel tube, and is used to compress the introduced cable and seal the gap between the cable and the introduction channel.

Images