CN213458382U

CN213458382U - Combustible gas alarm controller

Info

Publication number: CN213458382U
Application number: CN202022460675.8U
Authority: CN
Inventors: 李辉; 彭腾
Original assignee: BEIJING VITALSAFE EQUIPMENT CO LTD
Current assignee: BEIJING VITALSAFE EQUIPMENT CO LTD
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-15
Anticipated expiration: 2030-10-29

Abstract

The utility model provides a combustible gas alarm control ware, includes drain pan and upper cover, be formed with the accommodation space between drain pan and the upper cover, the upper cover rotates with the drain pan to be connected its characterized in that: the upper cover has relative both sides, and wherein first side is rotated with the drain pan and is connected, the second side then is the free end, the first side of upper cover is provided with first location structure towards the one side of drain pan, the drain pan is provided with second location structure with the position that first location structure corresponds, interference fit when upper cover is opened can be to first location structure and second location structure. Compared with the prior art, the utility model has the advantages of: by arranging the positioning structure between the upper cover and the bottom shell, the upper cover can be supported when the upper cover is opened, and the upper cover can be closed again only by applying external force, so that the upper cover does not need to be held by hands during operation, and the cover opening operation is facilitated.

Description

Combustible gas alarm controller

Technical Field

The utility model belongs to the technical field of combustible gas detects technique and specifically relates to a combustible gas alarm controller.

Background

Along with the rapid expansion of the application field of the combustible gas, the combustible gas brings great convenience to the production and the life of people, and simultaneously, due to the characteristics of flammability and explosiveness, the accident rate is correspondingly improved, and great threat is formed to the life and property safety of people. In order to prevent the trouble, it is necessary to detect the leakage of the combustible gas.

A combustible gas detector is a detector that can respond to the concentration of a single or multiple combustible gases. The combustible gas detector plays a vital role in guaranteeing the safe use of fuel gas in various industrial and commercial places and maintaining the life and property safety of people. The combustible gas detector can be divided into a point type combustible gas detector, a linear type combustible gas detector and the like. The point type combustible gas detector examines the change condition of the combustible gas concentration in a small range area around the detector.

The combustible gas alarm controller is used for being matched and connected with the point type combustible gas detector to achieve the purpose of controlling and managing the latter. The combustible gas alarm controller can receive the signal of the detection probe, display the measured value in real time, and when the measured value reaches the set alarm value, the control host computer gives out sound and light alarm, and simultaneously outputs a control signal (switching value contact output) to prompt an operator to take safety treatment measures in time or automatically start control equipment connected in advance so as to ensure safe production. The prior combustible gas alarm controller is disclosed in Chinese patent application No. 201320693496.6 or No. 201720151529.2.

However, the existing combustible gas alarm controller generally has the following disadvantages: 1) after the upper cover is lifted, the 90-degree position of the upper cover can be ensured only by holding the upper cover with hands; 2) a plurality of combustible gas alarm controllers cannot be installed side by side; 3) the communication protocol is single; 4) only one set of relay outputs; 5) the wall-mounted installation cannot be realized; 6) cables are disorderly wired in a product and are inconvenient to fix; 7) the structural layout of the buzzer is single; 8) the power cord cannot be prevented from being pulled; 9) the liquid crystal screen is welded on the circuit board, and the liquid crystal screen needs to be assembled on the circuit board firstly, but the liquid crystal screen has more pins and is difficult to assemble with the circuit board; 10) the volume is large; 11) the liquid crystal display is small.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a combustible gas alarm controller, the operation of uncapping is convenient for.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a combustible gas alarm control ware, includes drain pan and upper cover, be formed with the accommodation space between drain pan and the upper cover, the upper cover rotates with the drain pan to be connected its characterized in that: the upper cover has relative both sides, and wherein first side is rotated with the drain pan and is connected, the second side then is the free end, the first side of upper cover is provided with first location structure towards the one side of drain pan, the drain pan is provided with second location structure with the position that first location structure corresponds, interference fit when upper cover is opened can be to first location structure and second location structure.

Preferably, in order to facilitate the first positioning structure and the second positioning structure to be matched when the upper cover rotates, the first positioning structure is a bump extending from the first side of the upper cover to the second side for a certain distance, the second positioning structure is also a bump, and the side of the second positioning structure facing the upper cover is gradually inclined from the first side of the upper cover to the second side of the upper cover.

For the controller is installed side by side for being convenient for to need not operating personnel and come and go each controlling means and operate, saved the manpower, the drain pan is provided with the forked tail structure with the both sides that the upper cover is adjacent, and wherein the forked tail structure of one side is the dovetail, and the forked tail structure of opposite side is for can with the forked tail arch that the dovetail matches.

For richening the communication protocol, be convenient for increase the variety of connection, communication, enlarge application scope, be provided with the circuit board in the accommodation space, the circuit board is provided with the RS485 interface that supports modbusRTU protocol and CRT fire control protocol with the upper cover corresponding position.

In order to realize multiple control, a circuit board is arranged in the accommodating space, and at least two groups of passive switching value output interfaces are arranged at the position of the circuit board corresponding to the upper cover.

For the controller installation, can clearly show the operation of being convenient for simultaneously, one side that the upper cover was kept away from to the drain pan is provided with the mounting panel, mounting panel upper portion is provided with the couple, be provided with the hangers on the couple to realize the hanging installation of controller through couple and hangers.

In order to display information of the alarm and control information, a transparent window is arranged on the same side face of the bottom shell with the upper cover, and a liquid crystal screen is arranged in the accommodating space corresponding to the transparent window.

In order to facilitate the assembly of the liquid crystal screen and the circuit board, a screen support is arranged at a position corresponding to the liquid crystal screen in the bottom shell, pin holes corresponding to pins of the liquid crystal screen in a one-to-one mode are formed in the screen support, the circuit board is arranged in the accommodating space and is arranged on one side, away from the liquid crystal screen, of the screen support, and the pins of the liquid crystal screen penetrate through the screen support and are connected to the circuit board; the pin holes are conical, and the calibers of the ends, facing the liquid crystal screen, of the pin holes are gradually increased towards the ends, far away from the liquid crystal screen.

For guaranteeing that the cable is smooth and attractive to walk in the accommodation space, avoid winding between the cables or the cable interferes with other parts, winds and the like, a cable fixing structure is arranged at a position corresponding to the upper cover in the accommodation space.

In order to prevent the power cord from being pulled, the end part of the bottom shell is provided with a wire buckle for fixing the power cord.

Compared with the prior art, the utility model has the advantages of: the positioning structure is arranged between the upper cover and the bottom shell, so that the upper cover can be supported when the upper cover is opened, and the upper cover can be closed again only by applying external force, so that the upper cover does not need to be held by hands during operation, and the cover opening operation is facilitated; by arranging the dovetail structure, a plurality of controllers can be installed side by side, so that an operator does not need to move each control device back and forth to operate, and the labor is saved; by arranging the RS485 interface, the ModbusRTU protocol and the CRT fire-fighting protocol are supported, the diversity of connection and communication is enriched, and the application range is expanded; through set up the screen support between LCD screen and circuit board to make the screen support and set up the bell mouth that supplies the LCD screen pin to pass, thereby the LCD screen pin of being convenient for passes, makes things convenient for the equipment of LCD screen and circuit board.

Drawings

Fig. 1 is a schematic structural diagram of a gas alarm controller according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the gas alarm controller according to the embodiment of the present invention from the back side;

fig. 3 is a schematic structural diagram of the gas alarm controller according to the embodiment of the present invention when the upper cover is opened;

fig. 4 is a schematic view of a bottom case structure of the gas alarm controller according to the embodiment of the present invention;

fig. 5 is a schematic structural view of an upper cover of the gas alarm controller according to the embodiment of the present invention;

fig. 6 is a cross-sectional view of a gas alarm controller in accordance with an embodiment of the present invention;

fig. 7 is a schematic diagram of a screen support structure of the gas alarm controller according to the embodiment of the present invention (seen from back to front);

fig. 8 is a schematic diagram of a screen support structure of a gas alarm controller according to an embodiment of the present invention (seen from front to back).

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, the combustible gas alarm controller comprises a bottom shell 1 and an upper cover 2, wherein an accommodating space is formed between the bottom shell 1 and the upper cover 2, so that required components are arranged in the accommodating space. For convenience of description, the following description will be made in terms of the orientation of the controller in the mounted state.

The bottom shell 1 is a hollow cuboid, one side surface of the bottom shell 1 is provided with a partial opening, and the upper cover 2 is arranged at the opening. One side that the upper cover 2 was kept away from to drain pan 1 is provided with mounting panel 12, and mounting panel 12 upper portion is provided with couple 13, and couple 13 can cooperate with hangers 14, and couple 13 can with outside installation basis, if wall body etc. articulate, and hangers 14 then can supply fasteners such as screw to pass to realize with outside installation basic stable connection, thereby realize the hanging installation of controller through couple 13 and hangers 14.

The volume of the whole body formed by the bottom shell 1 and the upper cover 2 is 242.4mm multiplied by 85.4mm multiplied by 50.2mm (height, width and depth), and compared with a common controller, the volume is greatly reduced. In the on-hook state of the bottom case 1, the upper cover 2 is located on the front side of the bottom case 1, and the height refers to the dimension in the up-down direction, the width refers to the dimension in the left-right direction, and the depth refers to the dimension in the front-back direction.

The same side of the bottom case 1 where the upper cover 2 is provided with a transparent window 18 so that the inside of the bottom case 1 can be observed from the position of the transparent window 18. In the on-hook state, the transparent window 18 is positioned above the upper cover 2. The liquid crystal screen 3 is arranged in the accommodating space at a position corresponding to the transparent window 18, and referring to fig. 6, the liquid crystal screen 3 adopts a 3.2-inch segment code LCD liquid crystal screen, so that information can be clearly displayed.

Referring to fig. 3 to 5, the upper cover 2 is rotatably connected to the bottom case 1, so that the upper cover 2 can be flipped upward relative to the bottom case 1 in a direction out of the bottom case 1 to open the opening of the bottom case 1. The upper cover 2 has two opposite sides, wherein a first side (upper side) is rotatably connected to the bottom case 1, and a second side (lower side) is a free end. At the second side the upper cover 2 and the bottom shell 1 can be locked by means of a lock. A first positioning structure 21 is disposed on a first side of the upper cover 2 facing the bottom case 1, and a second positioning structure 11 is disposed at a position of the bottom case 1 corresponding to the first positioning structure 21. The first positioning structure 21 is a protrusion extending from the first side to the second side of the upper cover 2 for a certain distance, the second positioning structure 11 is also a protrusion, and the second positioning structure 11 is gradually inclined toward the upper cover 2 from the first side to the second side of the upper cover 2 toward one side of the upper cover 2.

Therefore, when the upper cover 2 is opened, the second positioning structure 11 moves along the inclined surface of the first positioning structure 21, and the second positioning structure 11 can be supported by the first positioning structure 21 after the upper cover 2 is completely opened, and the first positioning structure 21 and the second positioning structure 11 are in interference fit, so that the upper cover 2 is kept still after being opened without manual support. When the upper cover 2 needs to be closed, the first positioning structure 21 and the second positioning structure 11 can be separated only by applying force to the upper cover 2 and turning the upper cover downwards.

In the accommodation space, if the position that corresponds with upper cover 2 is provided with cable fixed knot and constructs 15, it is smooth pleasing to the eye to guarantee that the cable is walked the line in the accommodation space, avoids winding between the cable or cable and other parts to interfere, winding etc.. The cable fixing structure 15 may be in the form of a bracket in which holes are made for the cables to pass through.

The position that is adjacent with LCD screen 3 in the accommodation space is provided with bee calling organ (not shown), and bee calling organ hole 16 has been seted up to the side that drain pan 1 set up upper cover 2 and the position that corresponds with bee calling organ, and bee calling organ hole 16 can include at least two holes of arranging side by side, also can set up two at least holes in every row, in this embodiment, be 3 rows of apertures to be convenient for sound propagation, the outward appearance is pleasing to the eye. The bottom shell 1 may further be provided with a key 4 adjacent to the liquid crystal screen 3 for pressing the operation controller.

The bottom end of the bottom case 1 (the end far from the liquid crystal screen 3) is provided with a wire buckle 17 for fixing a power wire (not shown) to prevent the power wire from being pulled.

The bottom shell 1 is provided with the side surface of the upper cover 2, and an indicator lamp 5 is arranged at the position adjacent to the liquid crystal screen 3 and used for displaying the working state of a detector connected with the controller.

Both sides of drain pan 1 are provided with forked tail structure 20, and this both sides are the both sides of the side that sets up upper cover 2, the ascending both sides of drain pan 1 width direction promptly, and wherein one side can be the dovetail, and the opposite side then can be the forked tail arch of matching, therefore, the controller of being convenient for realizes drain pan 1 (whole controller) side by side installation through the forked tail structure 20 of drain pan 1, the dovetail of wherein one side of the drain pan 1 of every controller promptly can cooperate with the forked tail arch of drain pan 1 one side of adjacent controller, thereby accomplish the side by side installation of controller with the mode of pegging graft. The dovetail groove and the dovetail bulge can be increased in size from front to back, so that the controller can be conveniently installed from front to back, and the guiding function is achieved.

Referring to fig. 6 to 8, a screen support 19 is disposed in the bottom case 1 at a position corresponding to the liquid crystal screen 3, pin holes 191 are formed in the screen support 19 and correspond to pins of the liquid crystal screen 3 one to one, the circuit board 6 is disposed in the accommodating space and disposed on one side of the screen support 19 away from the liquid crystal screen 3, and the pins of the liquid crystal screen 3 penetrate through the screen support 19 and are connected to the circuit board 6. The circuit board 6 also extends to correspond to the upper cover 2. The liquid crystal screen 3 has more pins, so that the liquid crystal screen is not easy to insert when being inserted into the screen support 19 made of plastic. Therefore, in the present embodiment, the pin holes 191 are tapered, and the caliber of the pin holes gradually increases from the end facing the liquid crystal panel 3 to the end away from the liquid crystal panel 3, so that the liquid crystal panel 3 can be easily assembled and welded on the circuit board 6.

Referring to fig. 3 and 6 again, the circuit board 6 is provided with two sets of passive switching value output interfaces 61, and may also be provided with RS485 interfaces 62, and the number of the passive switching value output interfaces 61 may also exceed two. The positions of the interfaces correspond to the positions of the upper cover 2, so that corresponding connection can be carried out when the upper cover 2 is opened. The RS485 interface supports a ModbusRTU protocol and a CRT fire-fighting protocol.

Claims

1. The utility model provides a combustible gas alarm control ware, includes drain pan (1) and upper cover (2), be formed with the accommodation space between drain pan (1) and upper cover (2), upper cover (2) rotate with drain pan (1) and are connected its characterized in that: the upper cover (2) is provided with two opposite sides, wherein the first side is rotatably connected with the bottom shell (1), the second side is a free end, one surface of the first side of the upper cover (2) facing the bottom shell (1) is provided with a first positioning structure (21), the position of the bottom shell (1) corresponding to the first positioning structure (21) is provided with a second positioning structure (11), and the first positioning structure (21) and the second positioning structure (11) can be in interference fit when the upper cover (2) is opened.

2. The combustible gas alarm controller of claim 1, wherein: the first positioning structure (21) is a bump extending from the first side of the upper cover (2) to the second side for a certain distance, the second positioning structure (11) is also a bump, and the second positioning structure (11) gradually inclines towards the upper cover (2) from the first side to the second side of the upper cover (2) towards one side of the upper cover (2).

3. The combustible gas alarm controller according to claim 1 or 2, wherein: the two adjacent sides of the bottom shell (1) and the upper cover (2) are provided with dovetail structures (20), wherein the dovetail structure (20) on one side is a dovetail groove, and the dovetail structure (20) on the other side is a dovetail protrusion capable of being matched with the dovetail groove.

4. The combustible gas alarm controller according to claim 1 or 2, wherein: a circuit board (6) is arranged in the accommodating space, and an RS485 interface (62) supporting a ModbusRTU protocol and a CRT fire-fighting protocol is arranged at the position, corresponding to the upper cover (2), of the circuit board (6).

5. The combustible gas alarm controller according to claim 1 or 2, wherein: a circuit board (6) is arranged in the accommodating space, and at least two groups of passive switching value output interfaces (61) are arranged at the position, corresponding to the upper cover (2), of the circuit board (6).

6. The combustible gas alarm controller according to claim 1 or 2, wherein: one side that upper cover (2) was kept away from in drain pan (1) is provided with mounting panel (12), mounting panel (12) upper portion is provided with couple (13), be provided with hangers (14) on couple (13) to realize the hanging installation of controller through couple (13) and hangers (14).

7. The combustible gas alarm controller according to claim 1 or 2, wherein: the same side of the bottom shell (1) provided with the upper cover (2) is provided with a transparent window (18), and a liquid crystal screen (3) is arranged in the accommodating space at a position corresponding to the transparent window (18).

8. The combustible gas alarm controller of claim 7, wherein: a screen support (19) is arranged in the bottom shell (1) at a position corresponding to the liquid crystal screen (3), pin holes (191) corresponding to pins of the liquid crystal screen (3) in a one-to-one manner are formed in the screen support (19), a circuit board (6) is arranged in the accommodating space, the circuit board (6) is arranged on one side, away from the liquid crystal screen (3), of the screen support (19), and the pins of the liquid crystal screen (3) penetrate through the screen support (19) and are connected to the circuit board (6); the pin holes (191) are conical, and the caliber of each pin hole (191) is gradually increased from one end, facing the liquid crystal screen (3), to the end, far away from the liquid crystal screen (3).

9. The combustible gas alarm controller according to claim 1 or 2, wherein: and a cable fixing structure (15) is arranged in the accommodating space at a position corresponding to the upper cover (2).

10. The combustible gas alarm controller according to claim 1 or 2, wherein: the end part of the bottom shell (1) is provided with a wire buckle (17) used for fixing a power wire.