CN220796040U - Online self-checking connection device for gas alarm - Google Patents
Online self-checking connection device for gas alarm Download PDFInfo
- Publication number
- CN220796040U CN220796040U CN202322601385.4U CN202322601385U CN220796040U CN 220796040 U CN220796040 U CN 220796040U CN 202322601385 U CN202322601385 U CN 202322601385U CN 220796040 U CN220796040 U CN 220796040U
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- gas alarm
- connecting piece
- gear set
- checking
- connection
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- 239000007789 gas Substances 0.000 claims abstract description 70
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 238000003032 molecular docking Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000002737 fuel gas Substances 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 241000239290 Araneae Species 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses an online self-checking connection device of a gas alarm, which comprises a driving mechanism, a gear set and a connection piece; the driving mechanism is used for inputting linear or rotary motion to the online self-checking docking device; the gear set is in transmission connection with the driving mechanism and is used for converting the linear or rotary motion input by the driving mechanism into clockwise or anticlockwise rotation; the connection piece comprises a connecting piece and an opposite interface, the connecting piece is arranged on the gear set, and when the gear set outputs clockwise or anticlockwise rotation, the connecting piece moves; the butt joint port is arranged at the movable end of the connecting piece and is used for butt joint of standard fuel gas to the sampling port of the fuel gas alarm; the interface is connected with or separated from a sampling port of the gas alarm to be tested under the drive of the connecting piece; the utility model releases the test gas with micro standard concentration to the sampling port of the gas alarm, compares the detection result with the standard concentration, judges the detection precision of the gas alarm, and can carry out periodic online self-test on the gas alarm which is installed and used.
Description
Technical Field
The utility model relates to a gas alarm, in particular to an online self-checking connection device for the gas alarm.
Background
The gas alarm can monitor the gas environment in real time, and the low-concentration combustible gas in the surrounding environment is detected by the built-in gas sensor. When the gas in the room leaks and the concentration exceeds the threshold value, the alarm gives out alarm information, and the gas supply pipeline can be cut off, so that the gas use safety is ensured. However, because the alarm uses the oil smoke pollution and the ageing of the device on the scene, the detection precision of the alarm can be influenced after long-term use, so that the gas alarm which is installed and used needs to be periodically and online self-checked.
Disclosure of utility model
Aiming at the problem that the gas alarm which is installed and used in the prior art needs to be subjected to periodic online self-checking, the utility model provides the online self-checking connection device for the gas alarm, which has a compact structure and is reliable to use.
The technical scheme is as follows: an on-line self-checking connection device for a gas alarm, comprising:
The driving mechanism is used for inputting linear or rotary motion to the online self-checking connection device;
the gear set is in transmission connection with the driving mechanism and is used for converting the linear or rotary motion input by the driving mechanism into clockwise or anticlockwise rotation;
The connecting piece comprises a connecting piece and an opposite interface, the connecting piece is arranged on the gear set, and when the gear set outputs clockwise or anticlockwise rotation, the connecting piece moves up and down, front and back or a combination thereof; the butt joint port is arranged at the movable end of the connecting piece and is used for butt joint of standard fuel gas to the sampling port of the fuel gas alarm; and under the drive of the connecting piece, the butt joint is connected with or separated from a sampling port of the gas alarm to be tested.
In one embodiment, the driving mechanism is a stepping motor, and an output shaft of the stepping motor is in transmission connection with the gear set; or the driving mechanism and the gear set are driven by rack and pinion.
In one embodiment, the gear set comprises a driving wheel and a pair of driven wheels, the driving mechanism is in transmission connection with the driving wheel, and the driven wheels are the same in size, are opposite to two sides of the driving wheel and are respectively meshed with the driving wheel.
In one embodiment, the connecting piece and the driven wheel are connected in a positioning way by a pin shaft.
In one embodiment, the butt joint opening is horn-shaped, the opening of the butt joint opening faces to the sampling opening of the gas alarm to be tested, and the center axis of the butt joint opening is coaxial with the sampling opening of the gas alarm to be tested.
In one embodiment, a flexible liner is disposed within the interface.
In one embodiment, the interface is connected to a standard concentration test gas supply tube.
In one embodiment, the device further comprises a solenoid valve for controlling the release of a standard concentration of test gas.
The beneficial effects are that: according to the application, a trace of test gas with standard concentration is released to the sampling port of the gas alarm, and the detection accuracy of the gas alarm can be judged by comparing the difference between the detection result and the standard concentration, so that the operation is simple and convenient; the gas alarm device can perform periodic online self-checking on various installed and used gas alarms, and the normal use of the gas alarm device is not affected when the gas alarm device is installed and implemented, so that the gas alarm device is easy to popularize and use; after the online self-checking is finished, the device is stored and reset, and the space is not occupied.
Drawings
FIG. 1 is a schematic view of a docking device according to an embodiment;
FIG. 2 is a top view of a docking plate in one embodiment;
FIG. 3 is a schematic illustration of a device in one embodiment during self-test;
FIG. 4 is a schematic illustration of an embodiment of the device in a disengaged condition;
Reference numerals illustrate:
1-a stepper motor; 2-a first gear; 3-a second gear; 4-a third gear; 5-a spider plate; 501-lining the interface; 6-a bottom plate; 7-a gas alarm to be detected; 701-a sampling port of a gas alarm to be tested; 8-standard concentration test gas supply tube.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if there are terms such as "upper", "lower", "front", "rear", "clockwise", "counterclockwise", etc., the terms refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
An on-line self-checking connection device for a gas alarm comprises a driving mechanism, a gear set and a connection piece.
The driving mechanism is used for inputting straight lines to the on-line self-checking connection device or has various specific structures and driving modes, and is connected with the gear set through the transmission assembly, so that the driving force is input to the device, and the gear is controlled to rotate. Alternatively, the drive mechanism may employ a motor as the drive element, the rotational movement of which is translated into a clockwise or counterclockwise rotation of the gear set when the motor is rotated in a forward or reverse direction. The driving mechanism can also be a rack assembly, and the linear motion is input through a rack and converted into the rotary motion of a gear. The application is not limited to the form of the driving mechanism, and a person skilled in the art can select a proper driving mechanism according to actual situations, and realize the driving of the gears and the control of the directions of the gears through a manual or automatic mode.
The gear set is in transmission connection with the driving mechanism and is used for converting the linear or rotary motion input by the driving mechanism into clockwise or anticlockwise rotation. Optionally, the gear set comprises a driving wheel and a pair of driven wheels, and the driving wheel is in transmission connection with the driving mechanism; the two driven wheels are the same size, are opposite to the two sides of the driving wheel and are respectively meshed with the driving wheel (the driven wheels are not contacted).
The connector comprises a connecting piece and a butt joint, wherein the connecting piece is arranged on the gear set, the butt joint is positioned at the movable end of the connecting piece and is used for butt joint of standard fuel gas to the sampling port of the fuel gas alarm. When the gear set outputs clockwise or anticlockwise rotation, the connecting piece moves up and down, moves back and forth or rotates, and the opposite interface is driven to be connected with or separated from the sampling port of the gas alarm to be tested through the movement or rotation.
Preferably, the butt joint of the connecting piece is designed into a horn mouth, and a flexible lining is arranged in the horn mouth, so that the tightness of the connecting piece is ensured; further, the horn mouth central shaft of the connecting piece is coaxial with the sampling port of the gas alarm to be tested.
A preferred embodiment of the present application will be described below with reference to fig. 1 to 4, and the working principle of the preferred embodiment will be explained and illustrated in detail.
The gas alarm 7 to be measured is installed on the bottom plate 6, and comprises a sampling port 701 of the gas alarm to be measured, a gas sensor and a display unit for displaying the gas concentration value. The on-line self-checking connection device is composed of a stepping motor 1, a first gear 2 arranged on the stepping motor 1, a second gear 3 and a third gear 4 driven by the first gear 2 and a connection piece.
The first gear 2 is a driving wheel, the second gear 3 and the third gear 4 are driven wheels, the second gear 3 and the third gear 4 are the same in size, are symmetrically distributed on two sides of the first gear 2 and meshed with the first gear 2, and can be driven by the stepping motor 1 to realize synchronous and same-direction rotation.
The connecting piece comprises a connecting plate 5 and an opposite interface, and the connecting plate 5 is in pin shaft positioning connection with the driven wheel. Specifically, two mounting holes are formed in the connection plate 5, and one hole is formed in each of the second gear 3 and the third gear 4; the mounting hole of the connection plate 5 is consistent for the azimuth of the second gear 3 and the third gear 4 during installation, the two mounting holes of the connection plate 5 are respectively positioned with the holes on the second gear 3 and the third gear 4 in a pin shaft connection mode, in the embodiment, the connection plate 5 is arranged in a horizontal state, and meanwhile the connection plate 5 can rotate relative to a single connecting shaft (namely, the included angle between the straight line connected with the 'mounting hole-gear center' and the horizontal line is variable), so that the whole height of the connection piece is adjustable, and the distance between the connection piece and the sampling port 701 of the gas alarm to be tested is adjustable.
The butt joint port on the connection plate 5 is designed as a horn mouth, the bottom of the horn mouth is connected with a standard concentration test gas supply pipe 8, and the other end of the horn mouth faces to a sampling port 701 of the gas alarm to be tested; the interface liner 501 is a flexible material to ensure the interface tightness; meanwhile, the horn mouth central shaft of the spider plate 5 is coaxial with the sampling port 701 of the gas alarm to be tested.
The operation principle of the connection device is as follows:
The movement track range of the mounting hole of the spider plate 5 is the lower half circle of the central connecting line of the second gear 3 and the third gear 4. The stepper motor 1 rotates to drive the lapel plate 5 to translate along the circumference of the driven wheel (the whole angle state of the lapel plate 5 is kept unchanged), so that the butt joint at one end of the lapel plate 5 is connected with or separated from the sampling port 701 of the gas alarm to be tested.
Specifically, when the device needs to be connected, the stepping motor 1 drives the first gear 2 to rotate clockwise and drives the second gear 3 and the third gear 4 to rotate anticlockwise, and the connection plate 5 is connected with a sampling port of the gas alarm in an anticlockwise upward manner along a semicircular arc movement track, as shown in fig. 3; the test gas with standard concentration is released to the sampling port of the gas alarm through the gas supply pipe and the bell mouth through the electromagnetic valve, the detection value is displayed by the display unit, the detection value is compared with the standard concentration, and the detection precision of the gas alarm is judged.
When the gas alarm is detached from the docking, the stepping motor 1 drives the first gear 2 to rotate anticlockwise, drives the second gear 3 and the third gear 4 to rotate clockwise, and the docking plate 5 is detached from the sampling port of the gas alarm downwards clockwise along the semicircular arc movement track until the whole docking plate 5 is in a storage state, so that the smoothness of the sampling port of the gas alarm and the ambient air is ensured, as shown in fig. 4.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (9)
1. The utility model provides a gas alarm on-line self-checking refutes and connects device which characterized in that includes:
The driving mechanism is used for inputting linear or rotary motion to the online self-checking connection device;
the gear set is in transmission connection with the driving mechanism and is used for converting the linear or rotary motion input by the driving mechanism into clockwise or anticlockwise rotation;
The connecting piece comprises a connecting piece and an opposite interface, the connecting piece is arranged on the gear set, and when the gear set outputs clockwise or anticlockwise rotation, the connecting piece moves up and down, front and back or a combination thereof; the butt joint port is arranged at the movable end of the connecting piece and is used for butt joint of standard fuel gas to the sampling port of the fuel gas alarm; and under the drive of the connecting piece, the butt joint is connected with or separated from a sampling port of the gas alarm to be tested.
2. The on-line self-checking docking device of a gas alarm according to claim 1, wherein the driving mechanism is a stepper motor, and an output shaft of the stepper motor is in transmission connection with the gear set.
3. The on-line self-test docking device of a gas alarm of claim 1, wherein the drive mechanism and gear set are driven by rack and pinion.
4. The on-line self-checking connection device of a gas alarm according to any one of claims 1 to 3, wherein the gear set comprises a driving wheel and a pair of driven wheels, the driving mechanism is in transmission connection with the driving wheel, and the driven wheels are identical in size, are opposite to two sides of the driving wheel and are respectively meshed with the driving wheel.
5. The on-line self-checking connection device of a gas alarm according to claim 4, wherein the connecting piece is in positioning connection with the driven wheel by a pin shaft.
6. The on-line self-checking connection device of a gas alarm according to claim 4, wherein the connection port is horn-shaped, the opening of the connection port faces to the sampling port of the gas alarm to be tested, and the central axis of the connection port is coaxial with the sampling port of the gas alarm to be tested.
7. The on-line self-checking docking device of a gas alarm according to claim 6, wherein a flexible liner is provided in the docking station.
8. The on-line self-test docking device of a gas alarm of claim 1, wherein the docking interface is connected to a standard concentration test gas supply tube.
9. The on-line self-test docking device of a gas alarm of claim 8, comprising a solenoid valve for controlling the release of a standard concentration of test gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601385.4U CN220796040U (en) | 2023-09-25 | 2023-09-25 | Online self-checking connection device for gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601385.4U CN220796040U (en) | 2023-09-25 | 2023-09-25 | Online self-checking connection device for gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220796040U true CN220796040U (en) | 2024-04-16 |
Family
ID=90659956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322601385.4U Active CN220796040U (en) | 2023-09-25 | 2023-09-25 | Online self-checking connection device for gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220796040U (en) |
-
2023
- 2023-09-25 CN CN202322601385.4U patent/CN220796040U/en active Active
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