CN209785222U - Detection assembly of gas detection alarm device - Google Patents
Detection assembly of gas detection alarm device Download PDFInfo
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- CN209785222U CN209785222U CN201920547274.0U CN201920547274U CN209785222U CN 209785222 U CN209785222 U CN 209785222U CN 201920547274 U CN201920547274 U CN 201920547274U CN 209785222 U CN209785222 U CN 209785222U
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Abstract
The utility model relates to an environment detection device, and discloses a detection assembly of a gas detection alarm device, which comprises an installation shell, wherein a detection cavity is formed in the side surface of the installation shell in a penetrating way, the inner wall of the detection cavity is provided with an installation seat for installing a circuit board, and the installation seat is provided with a cushion pad for supporting the circuit board; the mounting shell is provided with an explosion-proof groove surrounding the detection cavity, the opening of the detection cavity is connected with a mounting cover, the mounting cover is provided with an explosion-proof ring extending into the explosion-proof groove, and the inner wall of the explosion-proof groove is provided with a flame-retardant sealing ring; a detection pipe and a wire passing pipe are arranged on the side edge of the mounting shell, the detection pipe is detachably connected with a filter screen, and the wire passing pipe is connected with an explosion-proof pipe; the circuit board is fixed on the mount pad, and the installation lid is installed on the mount pad, and explosion-proof ring stretches into explosion-proof inslot, has promoted the explosion-proof performance of installation lid, and fire behavior then avoids the flame to spread into the detection chamber, prevents that the fire behavior from damaging the circuit board, and test tube and wire passing pipe have then been protected to filter screen and explosion-proof pipe, have the advantage that antiknock performance is good, longe-lived.
Description
Technical Field
the utility model relates to an environment measuring equipment, more specifically say, it relates to a gaseous detection alarm device's determine module.
Background
The gas sensor is arranged in the gas detection alarm device and is an indispensable part of a combustible gas safety detection instrument. It can be fixed in the dangerous places with the leakage of the tested gas. The gas detector can transmit the concentration data of flammable and explosive gases leaked on the site to the gas alarm controller at the first time, and the data processing is carried out by the gas alarm controller.
The detection assembly is installed on the site of a detection environment in the existing gas detection alarm device, the detection assembly sends gas data to the control host through an industrial bus, the control host gives an alarm after receiving the data, however, if combustible gas leaks, the detection assembly is damaged by impact force which is generated greatly after explosion, and therefore the detection assembly with longer service life is needed.
SUMMERY OF THE UTILITY MODEL
To the impaired technical problem of life-span of current determine module in the occasion of blasting, the utility model provides a gaseous determine alarm device's determine module, it has the advantage that antiknock performance is good, longe-lived.
In order to achieve the above purpose, the utility model provides a following technical scheme:
A detection assembly of a gas detection alarm device comprises an installation shell, wherein a detection cavity for placing a circuit board is formed in one side surface of the installation shell in a penetrating mode, an installation seat for installing the circuit board is fixedly connected to the inner wall of the detection cavity, and a cushion pad for supporting the circuit board is fixedly connected to the installation seat;
an explosion-proof groove surrounding the detection cavity is formed in the periphery, close to the detection cavity, of the mounting shell, an installation cover is detachably connected to the opening of the detection cavity, the installation cover is fixedly connected with an explosion-proof ring extending into the explosion-proof groove, and a flame-retardant sealing ring abutted against the explosion-proof ring is fixedly connected to the inner wall of the explosion-proof groove;
the side of installation shell be equipped with all with detection chamber intercommunication's test tube and spool, the circuit board is aimed at the test tube, the filter screen can be dismantled and be connected with to the test tube, can dismantle on the spool and be connected with explosion-proof pipe.
Through above-mentioned technical scheme, the circuit board is fixed on the mount pad that has the blotter, and the installation lid is installed on the mount pad, and explosion-proof ring stretches into explosion-proof inslot, has promoted the explosion-proof performance of installation lid, has protected the circuit board, and fire behavior then is avoided stretching into the detection chamber to fire-retardant sealing washer, prevents that the fire behavior from damaging the circuit board, and the test tube and wire passing pipe have then been protected respectively to filter screen and explosion-proof pipe, have the advantage that the explosion-proof performance is good, longe-lived.
Furthermore, one end of the detection tube, which is far away from the installation shell, is sleeved with a fixed sleeve in an interference fit mode, and the periphery of the filter screen is tightly pressed between the fixed sleeve and the detection tube.
Through above-mentioned technical scheme, fixed cover can fix the filter screen, avoids the filter screen to drop from the detection tube.
Furthermore, the inner side of the filter screen is provided with a flame-retardant net which is tightly pressed between the fixed sleeve and the detection tube.
Through the technical scheme, the flame-retardant net can prevent the combustion state from spreading into the detection pipe, and devices in the detection pipe are protected.
Furthermore, a compact waterproof net is clamped between the filter net and the flame-retardant net.
Through above-mentioned technical scheme, the mesh of fine and close waterproof net can let gas pass through and not let water pass through, improves the waterproof performance of detecting tube.
Furthermore, the inner wall of the wire passing pipe is fixedly connected with a metal net-shaped shielding layer.
Through above-mentioned technical scheme, the shielding layer can avoid external electric field to disturb the wire of crossing in the wire casing.
Furthermore, a soft flame-retardant protective sleeve is sleeved in the wire passing pipe.
Through above-mentioned technical scheme, fire-retardant protective sheath can protect the intraductal wire of crossing the line and can not burnt.
Furthermore, an isolation metal net for shielding an electric field is fixedly connected to the inner wall of the detection cavity.
Through the technical scheme, the isolation metal net can shield an electric field after external burning explosion, and electronic components on the circuit board in the detection cavity are prevented from being permanently damaged.
Furthermore, one end, far away from the detection cavity, of the installation shell is provided with a perspective port which penetrates through the detection cavity and is communicated with the detection cavity, and the perspective port is fixedly connected with a perspective plate.
Through the technical scheme, the perspective port with the perspective plate can observe the condition in the installation shell under the condition that the installation cover is not opened.
compared with the prior art, the beneficial effects of the utility model are that: the circuit board is fixed on the mounting seat with the cushion pad, the mounting cover is mounted on the mounting seat, the explosion-proof ring extends into the explosion-proof groove, the explosion-proof performance of the mounting cover is improved, the circuit board is protected, and the flame-retardant sealing ring prevents the fire from spreading into the detection cavity and prevents the fire from damaging the circuit board; the fixed sleeve fixes the filter screen, the flame-retardant net and the compact waterproof net on the detection tube, so that the explosion-proof performance and the service life of the detection tube are improved, the explosion-proof tube and the flame-retardant protective sleeve respectively protect the wire passing tube and the wire passing tube, the wire cannot be burnt, and the detection tube has the advantages of good explosion-proof performance and long service life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention with the installation cover opened;
Fig. 3 is a schematic vertical sectional view of the perspective plate of the present invention, which is perpendicular to the opening direction of the perspective port;
FIG. 4 is a schematic vertical sectional view of the explosion-proof tank along its length direction;
fig. 5 is a schematic view of the radial vertical section of the fixing sleeve of the present invention.
Reference numerals: 1. mounting a shell; 2. a detection chamber; 21. a perspective port; 211. a see-through plate; 22. isolating the metal mesh; 23. a mounting seat; 231. a cushion pad; 3. a circuit board; 4. installing a cover; 41. an explosion-proof groove; 42. a flame-retardant sealing ring; 43. an explosion-proof ring; 5. a detection tube; 51. fixing a sleeve; 52. a filter screen; 53. a dense waterproof net; 54. a flame-retardant mesh; 6. a wire passing pipe; 61. a shielding layer; 62. a flame-retardant protective sleeve; 63. and (4) an explosion-proof pipe.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Examples
The utility model provides a gaseous detection alarm device's determine module, as shown in figure 1, is including being the installation shell 1 of roughly cuboid, as shown in figure 2, and one side of installation shell 1 is run through and is offered the detection chamber 2 that is used for placing circuit board 3, and the detection chamber 2 opening direction is the level, and circuit board 3 can transversely put also can erect and put. The one end that detection chamber 2 was kept away from to installation shell 1 is seted up and is run through to the perspective mouth 21 that detects chamber 2, and the opening direction of perspective mouth 21 is opposite with the opening direction that detects chamber 2, through the perspective board 211 that sticky fixedly connected with toughened glass or transparent acrylic plate made in the perspective mouth 21, and the perspective board 211 makes things convenient for the external circuit board 3 or the display element on the circuit board 3 that detect in the chamber 2. The inner wall of the detection chamber 2 is integrally provided with or fixedly connected with a mounting seat 23 through a bolt, a cushion pad 231 made of rubber or sponge is glued and fixed on the mounting seat 23, and the circuit board 3 is mounted on the mounting seat 23 and is pressed and connected with the cushion pad 231. As shown in fig. 3, an isolation metal net 22 for shielding an electric field is welded on the inner wall of the detection chamber 2.
Returning to fig. 2, the opening of the detection cavity 2 is detachably connected with an installation cover 4 through a rotating shaft, and the installation cover 4 is rotatably covered on the installation shell 1. The mounting shell 1 is close to the periphery that detects chamber 2 and has seted up and has enclosed detection chamber 2 and be the explosion-proof groove 41 of square ring form, and the opening direction of explosion-proof groove 41 is the same with the opening direction that detects chamber 2, combines figure 4, has the fire-retardant sealing washer 42 that the shape is the same with explosion-proof groove 41 through adhesive fastening in the explosion-proof groove 41, and fire-retardant sealing washer 42 is made by the plastics that accord with fire-retardant standard. Returning to fig. 2, the side of the mounting cover 4 facing the detection chamber 2 is integrally provided with an explosion-proof ring 43 extending into the explosion-proof groove 41, the shape of the explosion-proof ring 43 is matched with the shape of the explosion-proof groove 41, after the mounting cover 4 is covered on the mounting shell 1, the explosion-proof ring 43 extends into the explosion-proof groove 41 and abuts against the flame-retardant sealing ring 42, and the mounting cover 4 is fastened on the mounting shell 1 through bolts.
The side of installation shell 1 is integrative to be provided with the test tube 5 with detecting chamber 2 intercommunication, detects the interior circuit board 3 of chamber 2 and aims at test tube 5, and gas sensor accessible test tube 5 on the circuit board 3 detects external gas. One end of the detection tube 5, which is far away from the mounting shell 1, is in interference fit and sleeved with a fixing sleeve 51, as shown in fig. 5, a filter screen 52, a dense waterproof screen 53 and a flame retardant screen 54 are compressed between the fixing sleeve 51 and the detection tube 5 along a direction close to the mounting shell 1, and the periphery of the filter screen 52 is compressed between the fixing sleeve 51 and the detection tube 5. The filter screen 52 is used for preventing external impurities from entering the detection tube 5, the compact waterproof screen 53 can allow gas to pass through but not liquid moisture, and the flame retardant screen 54 is made of flame retardant plastic.
Returning to fig. 2, the other side of the mounting shell 1 is integrally provided with a wire passing pipe 6 communicated with the detection cavity 2, and a tubular shielding layer 61 which is also in a metal net shape is welded on the inner wall of the wire passing pipe 6. The soft flame-retardant protective sleeve 62 is sleeved in the shielding layer 61 of the wire passing pipe 6, the flame-retardant protective sleeve 62 is made of flame-retardant plastic, and the outer part of the wire passing pipe 6 is detachably connected or fixedly connected with the explosion-proof pipe 63 made of flame-retardant plastic through a hoop.
When the detection assembly of the gas detection alarm device is used, the circuit board 3 is fixed on the mounting seat 23 with the cushion pad 231, and the cushion pad 231 can absorb the impact force applied to the circuit board 3, so that the anti-explosion performance is improved. The mounting cover 4 is mounted on the mounting seat 23, the explosion-proof ring 43 extends into the explosion-proof groove 41, and the flame-retardant sealing ring 42 prevents the fire from spreading into the detection cavity 2, so that the circuit board 3 is prevented from being damaged by the fire, and the circuit board 3 is protected. The fixed sleeve 51 fixes the filter screen 52, the flame-retardant screen 54 and the compact waterproof screen 53 on the detection tube 5, thereby protecting the gas sensor, improving the explosion-proof performance and prolonging the service life of the detection tube 5. The explosion-proof tube 63 and the flame-retardant protective sleeve 62 respectively protect the wire in the wire passing tube 6 and the wire passing tube 6, so that the wire cannot be burnt, and the explosion-proof wire has the advantages of good explosion-proof performance and long service life. The isolation metal mesh 22 can shield an electric field after external burning explosion, so as to avoid permanently damaging electronic components on the circuit board 3 in the detection cavity 2, and the shielding layer 61 can prevent the external electric field from interfering with a lead in the wire passing pipe 6, so that the signal transmission in the detection assembly is more stable.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A detection assembly of a gas detection alarm device comprises a mounting shell (1), wherein a detection cavity (2) for placing a circuit board (3) is formed in one side surface of the mounting shell (1) in a penetrating mode, and is characterized in that a mounting seat (23) for mounting the circuit board (3) is fixedly connected to the inner wall of the detection cavity (2), and the mounting seat (23) is fixedly connected with a cushion pad (231) for supporting the circuit board (3);
An anti-explosion groove (41) surrounding the detection cavity (2) is formed in the periphery, close to the detection cavity (2), of the mounting shell (1), an installation cover (4) is detachably connected to an opening of the detection cavity (2), an anti-explosion ring (43) extending into the anti-explosion groove (41) is fixedly connected to the installation cover (4), and a flame-retardant sealing ring (42) abutted to the anti-explosion ring (43) is fixedly connected to the inner wall of the anti-explosion groove (41);
The side of installation shell (1) be equipped with all with detection tube (5) and wire passing pipe (6) that detect chamber (2) intercommunication, circuit board (3) are aimed at detection tube (5), detection tube (5) can be dismantled and be connected with filter screen (52), can dismantle on wire passing pipe (6) and be connected with explosion-proof pipe (63).
2. The detecting assembly of the gas detecting alarm device according to claim 1, wherein a fixing sleeve (51) is sleeved and interference-fitted on an end of the detecting tube (5) far from the mounting shell (1), and a periphery of the filter screen (52) is compressed between the fixing sleeve (51) and the detecting tube (5).
3. The detection assembly of the gas detection alarm device according to claim 2, characterized in that the inner side of the filter screen (52) is provided with a flame retardant mesh (54), and the flame retardant mesh (54) is compressed between the fixing sleeve (51) and the detection tube (5).
4. The detection assembly of a gas detection alarm device according to claim 3, characterized in that a dense waterproof net (53) is clamped between the filter net (52) and the flame retardant net (54).
5. The detecting assembly of the gas detecting alarm device in claim 1, wherein the inner wall of the wire passing pipe (6) is fixedly connected with a metal net-shaped shielding layer (61).
6. the detecting assembly of the gas detecting alarm device according to claim 1, characterized in that a soft flame-retardant protective sleeve (62) is sleeved in the wire passing pipe (6).
7. The detection assembly of the gas detection alarm device according to claim 1, characterized in that an isolation metal net (22) for shielding an electric field is fixedly connected to the inner wall of the detection cavity (2).
8. The detection assembly of the gas detection alarm device according to claim 1, wherein a perspective port (21) is formed in one end of the mounting shell (1) far away from the detection cavity (2) and communicated to the detection cavity (2), and a perspective plate (211) is fixedly connected to the perspective port (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547274.0U CN209785222U (en) | 2019-04-20 | 2019-04-20 | Detection assembly of gas detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547274.0U CN209785222U (en) | 2019-04-20 | 2019-04-20 | Detection assembly of gas detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209785222U true CN209785222U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920547274.0U Active CN209785222U (en) | 2019-04-20 | 2019-04-20 | Detection assembly of gas detection alarm device |
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| CN (1) | CN209785222U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272744A (en) * | 2020-01-21 | 2020-06-12 | 北京理工大学珠海学院 | Detection apparatus for antibiotic in detection cow's milk |
| CN111707309A (en) * | 2020-06-15 | 2020-09-25 | 岱特智能科技(昆山)有限公司 | Laboratory environment detection device |
| CN113670020A (en) * | 2021-09-03 | 2021-11-19 | 成都易华天宇试验设备有限责任公司 | Explosion-proof vacuum oven |
| CN114193155A (en) * | 2022-02-15 | 2022-03-18 | 联钢精密科技(中国)有限公司 | Equipment with micro-displacement compensation function |
| CN116858480A (en) * | 2023-09-05 | 2023-10-10 | 常州博安和达电子科技有限公司 | Detection device for multilayer circuit board |
-
2019
- 2019-04-20 CN CN201920547274.0U patent/CN209785222U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272744A (en) * | 2020-01-21 | 2020-06-12 | 北京理工大学珠海学院 | Detection apparatus for antibiotic in detection cow's milk |
| CN111272744B (en) * | 2020-01-21 | 2022-03-11 | 北京理工大学珠海学院 | Detection apparatus for antibiotic in detection cow's milk |
| CN111707309A (en) * | 2020-06-15 | 2020-09-25 | 岱特智能科技(昆山)有限公司 | Laboratory environment detection device |
| CN113670020A (en) * | 2021-09-03 | 2021-11-19 | 成都易华天宇试验设备有限责任公司 | Explosion-proof vacuum oven |
| CN114193155A (en) * | 2022-02-15 | 2022-03-18 | 联钢精密科技(中国)有限公司 | Equipment with micro-displacement compensation function |
| CN114193155B (en) * | 2022-02-15 | 2022-05-17 | 联钢精密科技(中国)有限公司 | Equipment with micro-displacement compensation function |
| CN116858480A (en) * | 2023-09-05 | 2023-10-10 | 常州博安和达电子科技有限公司 | Detection device for multilayer circuit board |
| CN116858480B (en) * | 2023-09-05 | 2023-11-07 | 常州博安和达电子科技有限公司 | Detection device for multilayer circuit board |
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