CN216052867U

CN216052867U - Case structure of fire control room graphic display device

Info

Publication number: CN216052867U
Application number: CN202121690262.7U
Authority: CN
Inventors: 黄岭; 周彬; 张景乐; 雷静
Original assignee: Guanghedian Technology Guangdong Co ltd
Current assignee: Guanghedian Technology Guangdong Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-15
Anticipated expiration: 2031-07-23

Abstract

The utility model provides a case structure of a fire control room graphic display device, which solves the problems of difficult assembly and high cost of the display device in the prior art. The utility model comprises a front frame, a rear frame and a rear cover; the lower edge of the front frame is provided with a lower bending flanging, and the lower bending flanging is provided with a stud for mounting a power panel of the display device; the rear frame is formed in one step by adopting an injection molding process and comprises a frame body and a cavity for mounting a display device mainboard; the frame body is detachably connected with the front frame after being used for installing the liquid crystal screen and the touch screen; the rear cover is buckled on the chamber. The utility model has reasonable design, convenient installation and low cost, is convenient for assembling the graphic display device of the whole fire control room, and reduces the assembling difficulty and the production cost; meanwhile, the rear frame is formed in one step by adopting an injection molding process, the problem of size deviation cannot exist, and stable installation of the liquid crystal screen and the touch screen is guaranteed after the design of the front frame is combined.

Description

Case structure of fire control room graphic display device

Technical Field

The utility model relates to the technical field of fire fighting, in particular to a case structure of a fire control room graphic display device.

Background

Because the screen of the controller in the fire-fighting system is generally small, and the state information of each part in the system is inconvenient to observe, most fire-fighting projects need to use the graphic display device of the fire-fighting control room and the controller in a matching way, so that the information of alarm, fault, linkage, shielding and the like of the controller in the system can be received, and the specific position of the information can be clearly displayed on the screen.

However, the existing fire control room graphic display device adopts a design mode of a sheet metal case, a liquid crystal screen and a touch screen, and during installation, liquid crystal is directly installed in a cavity of the sheet metal case and fixed by screws, and then the touch screen is adhered to the sheet metal case. The sheet-metal chassis is manufactured by adopting a welding process, so that the chassis is easily subjected to thermal deformation during welding, the tolerance of the chassis is difficult to control, and the phenomena that the liquid crystal display and the touch screen are not installed or installed firmly and the sealing performance between the rear cover and the cavity of the chassis is not good frequently occur. Meanwhile, the bonding surface of the welded metal plate case touch screen must be polished to be flat, and the installation of the touch screen with unevenness is problematic and is not easy to control.

Therefore, the traditional design mode not only increases the assembly difficulty of the display device, but also the cost of the sheet metal case is generally higher, and in addition, the control panel and the power supply are installed inside the case and then need to be locked and locked to form the rear cover, so that the cost of the graphic display device of the whole fire control room is also increased. Therefore, there is a need to improve the cabinet structure of the graphic display device in the fire control room to simplify the manufacturing process and reduce the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a case structure of a fire control room graphic display device, which solves the problems of difficult assembly and high cost of the display device in the prior art.

The technical scheme adopted by the utility model is as follows:

a chassis structure of a fire control room graphic display device comprises a front frame, a rear frame and a rear cover; the lower edge of the front frame is provided with a lower bending flanging, and the lower bending flanging is provided with a lower bending flanging stud for mounting a power panel of the display device; the rear frame is formed in one step by adopting an injection molding process and comprises a frame body and a cavity for mounting a display device mainboard; the frame body is detachably connected with the front frame after being used for installing the liquid crystal screen and the touch screen; the rear cover is buckled on the chamber.

Specifically, in the utility model, a positioning groove is arranged in the frame body of the rear frame and used for sequentially mounting the liquid crystal screen and the touch screen.

Furthermore, in the utility model, the side edge of the rear frame is also provided with a fixing screw hole for enhancing the firmness of the liquid crystal screen and the touch screen.

Specifically, in the utility model, the front frame is connected with the frame body of the rear frame through a front frame edge stud arranged on the periphery of the front frame.

Specifically, in the utility model, an assembly stud matched with a stud on the edge of the front frame to realize the assembly of the front frame and the rear frame is arranged on the periphery of the rear frame; the screw hole of the assembly stud is larger than that of the front frame edge stud, and the front frame edge stud is sleeved in the screw hole of the assembly stud.

Furthermore, in the utility model, the upper edge of the front frame is also provided with an upper bending flanging used for coating the upper part of the rear frame.

Specifically, in the utility model, a mainboard mounting stud is arranged in the cavity and used for mounting a mainboard of the display device.

Furthermore, in the utility model, two sides of the cavity are respectively provided with a positioning groove, two sides of the rear cover are provided with positioning buckling platforms corresponding to the positioning grooves, and the positioning buckling platforms enable the rear cover to be connected with the cavity in a sliding buckling mode in the positioning grooves and serve as a rotating fulcrum for enabling the rear cover to cover the cavity in an overturning mode.

Furthermore, in the utility model, two sides of the cavity are respectively provided with a fixing groove, two sides of the rear cover are provided with a fixing buckle table corresponding to the position of the fixing groove, and the fixing buckle tables buckle the rear cover and the cavity in a sliding buckle mode to realize fixing and clamping.

Furthermore, in the utility model, a key slot is arranged on the peripheral edge of the chamber, and a locking strip is arranged on the rear cover at a position corresponding to the key slot and is used for locking the rear cover in cooperation with the key slot.

Preferably, in the present invention, the front frame is made of metal.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model divides the case into a front frame, a rear frame and a rear cover, and the case is installed in a detachable connection mode, wherein a power panel is installed on the front frame, a mainboard is installed on the rear frame, and a liquid crystal display and a touch screen are installed between the front frame and the rear frame; meanwhile, the rear frame is formed in one step by adopting an injection molding process. Therefore, the whole fire control room graphic display device can be conveniently assembled, and the assembly difficulty and the production cost are reduced; meanwhile, the rear frame is formed in one step by adopting an injection molding process, the problem of size deviation cannot exist, and stable installation of the liquid crystal screen and the touch screen is guaranteed after the design of the front frame is combined.

(2) The front frame is provided with the upper bending flanging, and the rear frame can be coated after the front frame is matched with the lower bending flanging, so that the strength of the whole machine is enhanced.

(3) The rear cover and the rear frame are connected in a buckling mode, the buckling mode is simple and convenient, the sealing performance between the rear cover and the cavity can be guaranteed without locking, and the production cost is further reduced.

(4) The utility model has reasonable design, convenient installation and low cost and is suitable for popularization.

Drawings

Fig. 1 is a schematic diagram of a touch screen, a liquid crystal display, a front frame, a power board, a rear frame, a main board, and a rear cover according to an embodiment of the present invention.

Fig. 2 is a left side view of the whole machine.

Fig. 3 is a rear view of fig. 1.

Fig. 4 is a front view of the front frame.

Fig. 5 is a rear view of the front frame.

Fig. 6 is a front view of the rear frame.

Fig. 7 is a rear view of the rear frame.

Fig. 8 is a schematic structural view of the rear cover.

Fig. 9 is a schematic view of the surface C-C in fig. 3, i.e., the matching between the positioning groove and the positioning buckle table.

Fig. 10 is an enlarged schematic view at II in fig. 9.

Fig. 11 is a schematic view of the surface B-B in fig. 3, i.e. the matching between the fixing groove and the fixing buckle platform.

Fig. 12 is an enlarged schematic view at I in fig. 11.

Wherein, the part names corresponding to the reference numbers are:

1-front frame, 2-upper bending flange, 3-lower bending flange, 4-front frame edge stud, 5-lower bending flange stud, 6-rear frame, 7-positioning groove, 8-fixing groove, 9-fixing screw hole, 10-positioning groove, 11-cavity, 12-mainboard mounting stud, 13-rear cover, 14-positioning buckle table, 15-fixing buckle table, 16-assembly stud, 17-power board, 18-mainboard, 19-clamping groove, 20-tool groove and 21-clamping plate.

Detailed Description

The present invention is further illustrated by the following description and examples, including but not limited to the following examples.

The utility model provides a case structure of a fire-fighting control room graphic display device, which comprises a front frame, a rear frame and a rear cover, wherein the front frame is made of metal, and the rear frame is formed in one step by adopting an injection molding process. Fig. 1 is a schematic diagram of the explosion of a fire-fighting control room graphic display device adopting the scheme of the case of the utility model, and in fig. 1, the following components are sequentially arranged from right to left: touch-sensitive screen, LCD screen, preceding frame, power strip, back frame, mainboard, back lid.

According to a preferred embodiment of the utility model, as shown in fig. 1-8, a lower bent flange 3 is arranged at the lower edge of the front frame 1, and a lower bent flange stud 5 is arranged on the lower bent flange 3 and used for mounting a power panel of a display device; the rear frame 6 comprises a frame body and a cavity 11 for mounting a display device mainboard; the frame body is detachably connected with the front frame after being used for installing the liquid crystal screen and the touch screen; the rear cover 13 is adapted to snap onto the chamber 11. Namely: in this embodiment, the three major parts of the front frame, the rear frame and the rear cover are detachably connected to form a chassis of the fire control room graphic display device, wherein the power board 17 of the display device is installed on the front frame, and is matched with the rear frame to install the liquid crystal screen and the touch screen therein, the mainboard 18 of the display device is installed in the cavity on the rear frame 6 (the mainboard installation stud 12 is arranged inside the cavity 11), and the cavity 11 is covered by the rear cover 13 after being buckled.

According to another preferred embodiment of the present invention, as shown in fig. 1 to 3, the front frame 1 is connected to the rear frame by the matching of the front frame edge studs 4 arranged around the edge thereof and the assembly studs 16 arranged in the rear frame, specifically: the screw hole of the assembly stud is larger than the front frame edge stud, and the front frame edge stud is sleeved in the screw hole of the assembly stud. Namely: in this embodiment, adopt the mode of screw to realize preceding frame and the dismantlement of after-frame and be connected, can be convenient for preceding frame and the equipment of after-frame.

Meanwhile, as shown in fig. 5, an upper bending flanging 2 for coating the upper part of the rear frame 6 is also arranged at the upper edge of the front frame 1. In the embodiment, the lengths of the upper bending flanging and the lower bending flanging are slightly shorter than the length of the edge where the bending part is located, the upper bending flanging and the lower bending flanging are arranged to coat the upper edge and the lower edge of the rear frame, and the strength of the whole machine is enhanced.

According to another preferred embodiment of the present invention, as shown in fig. 6, a positioning groove 7 is provided in the frame body of the rear frame 6 for installing the liquid crystal screen and the touch screen. In addition, as shown in fig. 7, a fixing screw hole 9 for enhancing firmness of the touch screen is further formed in the side edge of the rear frame 6. Namely: in this embodiment, through the setting place the constant head tank that LCD screen and touch-sensitive screen were used specially to the use of cooperation fixed screw 9 can further make things convenient for the installation and the fixed of LCD screen and touch-sensitive screen under the prerequisite that does not influence the complete machine assembly.

According to another preferred embodiment of the present invention, as shown in fig. 9 to 12, two sides of the cavity 11 are provided with a positioning groove 10, two sides of the rear cover 13 are provided with a positioning buckle table 14 corresponding to the positioning groove, and the positioning buckle table connects the rear cover and the cavity by sliding and buckling into the positioning groove. Meanwhile, two sides of the cavity 11 are provided with fixing grooves 8, two sides of the rear cover 13 are provided with fixing buckle platforms 15 corresponding to the positions of the fixing grooves, and the fixing buckle platforms enable the rear cover to be fixed with the cavity in a sliding buckle-in fixing groove mode. Namely: in the embodiment, the positioning groove is matched with the positioning buckle platform, and the fixing groove is matched with the fixing buckle platform, so that the rear cover can be turned and installed conveniently (specifically, the positioning buckle platform is buckled into the positioning groove to form a rotating fulcrum, and the rear cover is turned around the rotating fulcrum and enables the fixing buckle platform to be buckled into the fixing groove), so that the rear cover is connected with the cavity.

According to another preferred embodiment of the present invention, after the rear cover 13 is fastened to the cavity 11, the fixing between the two can also be strengthened by a locking manner, specifically: the peripheral edge of the cavity 11 is provided with a key slot, the position of the rear cover 13 corresponding to the key slot is provided with a locking strip, and the rear cover can be locked by locking the locking strip after being buckled on the cavity.

According to the solution described in the above embodiment, another embodiment of the present invention provides an assembling process of a chassis of the fire control room graphic display device, specifically: firstly, a power panel is arranged on a lower bent flanging 3 of a front frame 1 and is fixed through a lower bent flanging stud 5 on the power panel; then fixing the rear frame 6 with the lower bending flanging 3 of the front frame 1; then, the liquid crystal screen and the touch screen are arranged on the combined front frame and the combined rear frame and then fixed by screws; and finally, fixing the main board in the cavity 11, and then buckling the rear cover 13 on the cavity 11 by using the positioning buckling table 14 and the fixing buckling table 15.

According to another preferred embodiment of the present invention, as shown in fig. 1, 7 and 8, the present embodiment further has a structural design for assisting locking and detaching, specifically: the upper portion of the cavity 11 is provided with a clamping groove 19, the clamping groove 19 is provided with a tool groove 20, the rear cover 13 is provided with a clamping plate 21, when the rear cover 13 is turned over and buckled on the cavity 11, the clamping plate 21 can be clamped into the clamping groove 19, and therefore the fixing groove 8 and the positioning groove 10 are used for mounting the rear cover 13, and the clamping groove 19 is used for locking the rear cover 13. When the rear cover 13 needs to be disassembled, a tool (such as a prying plate) can be inserted into the tool groove 20, then the clamping plate 21 is pried to be separated from the clamping groove 19, then the fixing buckle platform 15 can be separated from the fixing groove 8 in the same way as the above, and then the rear cover 13 is turned over and opened to complete the disassembly.

In summary, the embodiment of the utility model improves the case structure through reasonable structural design, and well solves the problems of difficult assembly and high cost of the display device in the prior art.

The above is only a preferred embodiment of the present invention, and any insubstantial changes or modifications made within the spirit and scope of the main design of the present invention will still solve the technical problems in keeping with the present invention and shall be included in the scope of the present invention.

Claims

1. A case structure of a fire control room graphic display device is characterized by comprising a front frame (1), a rear frame (6) and a rear cover (13); the lower edge of the front frame (1) is provided with a lower bending flanging (3), and the lower bending flanging (3) is provided with a lower bending flanging stud (5) for mounting a power panel of the display device; the rear frame (6) is formed in one step by adopting an injection molding process and comprises a frame body and a cavity (11) for mounting a display device mainboard; the frame body is detachably connected with the front frame after being used for installing the liquid crystal screen and the touch screen; the rear cover (13) is buckled on the chamber (11).

2. The cabinet structure of a graphic display device in a fire control room as claimed in claim 1, wherein a positioning groove (7) is formed in the frame body of the rear frame (6) for sequentially mounting the liquid crystal screen and the touch screen.

3. The cabinet structure of the graphic display device of the fire control room as claimed in claim 2, wherein the side edge of the rear frame (6) is further provided with fixing screw holes (9) for enhancing firmness of the liquid crystal screen.

4. The cabinet structure of the graphic display device of the fire control room as claimed in claim 1, wherein the front frame (1) is connected with the frame body of the rear frame through the front frame edge studs (4) arranged around the edge of the front frame.

5. The cabinet structure of the graphic display device of the fire control room as claimed in claim 4, wherein the rear frame (6) is provided with assembling studs (16) around the circumference thereof for matching with the edge studs (4) of the front frame to assemble the front frame and the rear frame; the screw hole of the assembly stud is larger than that of the front frame edge stud, and the front frame edge stud is sleeved in the screw hole of the assembly stud.

6. The case structure of the graphic display device of the fire control room as claimed in claim 1, wherein the upper edge of the front frame (1) is further provided with an upper bent flange (2) for covering the upper part of the rear frame (6).

7. A fire-fighting control room graphic display device case structure according to any one of claims 1 to 6, characterized in that a main board mounting stud (12) is provided inside the chamber (11) for mounting a main board of the display device.

8. The cabinet structure of a graphic display device in a fire control room as claimed in claim 7, wherein a positioning groove (10) is formed on both sides of the chamber (11), a positioning locking platform (14) corresponding to the positioning groove is formed on both sides of the rear cover (13), and the positioning locking platform connects the rear cover and the chamber by slidably locking into the positioning groove and serves as a pivot for turning the rear cover over the chamber.

9. The cabinet structure of a graphic display device in a fire control room as claimed in claim 8, wherein a fixing groove (8) is formed on each side of the chamber (11), a fixing buckle table (15) corresponding to the fixing groove is formed on each side of the rear cover (13), and the fixing buckle table is fastened with the chamber by sliding and buckling into the fixing groove to fix and clamp the rear cover.

10. A fire control room graphic display device case structure as claimed in claim 1, 8 or 9, wherein a key slot is formed at a peripheral edge of the chamber (11), and a locking bar is formed at a position of the rear cover corresponding to the key slot for locking the rear cover in cooperation with the key slot.