Wall-mounted central control screen

Abstract

The wall-mounted central control screen comprises a display screen, a middle frame assembly and a base assembly which are sequentially arranged in a stacked mode, the middle frame assembly comprises a middle frame, a first circuit board and a middle frame cover plate, the display screen is fixed to the front face of the middle frame, and the middle frame cover plate covers the back face of the middle frame to form a first cavity used for installing the first circuit board; the base assembly comprises a base cover plate, a second circuit board and a base, the base cover plate covers the front face of the base to form a second cavity, the second circuit board is installed in the second cavity and electrically connected with the first circuit board, and the base cover plate is connected with the middle frame cover plate and the middle frame in a clamped mode. According to the wall-mounted central control screen provided by the utility model, the base cover plate plays a role of a connecting pivot, is used for covering the base and is also used for being clamped with the middle frame cover plate and the middle frame of the middle frame assembly, so that after the middle frame assembly is assembled and the base assembly is assembled and mounted at a mounting position, the middle frame cover plate and the middle frame cover plate can be clamped and connected with the middle frame cover plate and the middle frame; the central control screen is installed by buckling the middle frame assembly on the base cover plate of the base assembly, and the central control screen is easy and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home central control screens, and in particular to a wall-mounted central control screen. Background Art

[0002] In addition to mobile terminal control, a fixed centralized control device is usually set up in the smart home system to switch various home appliances in the residence, such as the central control screen. Common central control screens are mounted on the wall and then control home appliances, such as lights, TVs, air conditioners, curtains, etc. The embedded installation structure of existing wall-mounted central control screens is mostly not easy to disassemble. Summary of the invention

[0003] The purpose of the utility model is to overcome at least one defect of the prior art and provide a wall-mounted central control screen.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wall-mounted central control screen comprises a display screen, a middle frame assembly and a base assembly which are stacked in sequence, the middle frame assembly comprising a middle frame, a first circuit board and a middle frame cover plate, the display screen is fixed on the front side of the middle frame, the middle frame cover plate is closed on the back side of the middle frame to form a first cavity for installing the first circuit board, the base assembly comprises a base cover plate, a second circuit board and a base, the base cover plate is closed on the front side of the base to form a second cavity, the second circuit board is installed in the second cavity and is electrically connected to the first circuit board, and the base cover plate is respectively clamped with the middle frame cover plate and the middle frame.

[0006] Optionally, the base cover plate and the middle frame cover plate are stacked and inserted into the first cavity of the middle frame, and the base cover plate has a recessed middle portion, and the recessed middle portion of the base cover plate is inserted into the second cavity of the base.

[0007] Optionally, the base cover plate is provided with at least one first base cover plate clamping position and at least one second base cover plate clamping position, the middle frame cover plate is provided with a middle frame cover plate buckle that is clamped and matched with the first base cover plate clamping position, and the middle frame is provided with a first middle frame buckle that is clamped and matched with the second base cover plate clamping position.

[0008] Optionally, the first base cover plate clamping position includes a clamping hole and a clamping step arranged on one side of the clamping hole, and the middle frame cover plate buckle is an inverted buckle structure, and the buckle part of the middle frame cover plate buckle passes through the clamping hole and buckles on the clamping step.

[0009] Optionally, the second base cover plate is positioned at the edge of the base cover plate, and is a structure with a convex front and a concave back. The middle frame cover is provided with an avoidance position corresponding to the front protrusion of the second base cover plate position. The first middle frame buckle is a convex structure arranged on the inner wall of the first cavity of the middle frame, and buckled in the back concave of the second base cover plate position.

[0010] Optionally, one side edge of the base cover is provided with an operating protrusion protruding outward, the middle frame is provided with an operating notch corresponding to the operating protrusion, the operating protrusion extends into the operating notch, and an operating gap is formed between the operating protrusion and the operating notch.

[0011] Optionally, at least one recessed middle frame cover position is provided on the side of the middle frame cover, and a raised second middle frame buckle is provided on the inner side wall of the first cavity of the middle frame, and the second middle frame buckle is engaged with the middle frame cover position.

[0012] Optionally, the back of the display screen has a raised middle portion, the front of the middle frame is provided with a mounting groove corresponding to the raised middle portion of the display screen and a side groove arranged around the mounting groove, the sides of the display screen are fixed in the side groove by screen adhesive, and the raised middle portion of the display screen is inserted into the mounting groove.

[0013] Optionally, the first circuit board is provided with a pin header female connector, the middle frame cover is provided with a pin header female connector hole for the pin header female connector to pass through, the second circuit board is provided with a pin header located on the front for plugging and cooperating with the pin header female connector and a power terminal and a network interface located on the back, the base cover is provided with a first row of pin holes for the pin header to pass through, and the base is provided with terminal through holes corresponding to the power terminals and interface through holes corresponding to the network interface.

[0014] Optionally, the base assembly further comprises a pressing plate disposed between the second circuit board and the base cover plate, wherein a plurality of raised supporting feet are provided on the back side of the pressing plate, and the supporting feet of the pressing plate are pressed on the front side of the second circuit board.

[0015] Optionally, the second chamber of the base is provided with two positioning bosses on both sides, the two sides of the pressure plate are provided with first positioning notches corresponding to the positioning bosses, and the two sides of the second circuit board are provided with second positioning notches corresponding to the positioning bosses; and / or, the second chamber of the base is provided with positioning columns and support ribs connected to the positioning columns, the second circuit board is provided with positioning holes corresponding to the positioning columns, and the second circuit board is sleeved on the positioning columns through the positioning holes and placed on the support ribs.

[0016] Optionally, the base, the second circuit board, the pressure plate and the base cover are fixedly connected by a third screw, and the base, the second circuit board, the pressure plate and the base cover are respectively provided with a third screw hole that cooperates with the third screw.

[0017] Optionally, base mounting holes for fixing in a mounting position are provided on both sides of the base, and base cover mounting holes corresponding to the base mounting holes are provided on both sides of the base cover.

[0018] Optionally, the middle frame and the first circuit board are fixedly connected by a first screw, and the middle frame and the first circuit board are respectively provided with a first screw hole that cooperates with the first screw; the middle frame and the middle frame cover are fixedly connected by a second screw, and the middle frame and the middle frame cover are respectively provided with a second screw hole that cooperates with the second screw.

[0019] The utility model relates to a wall-mounted central control screen, in which the base cover plate serves as a connecting hub that connects the upper and lower parts. The base cover plate is not only used to cover the base, but also used to be clamped with the middle frame cover plate and the middle frame of the middle frame assembly. After the middle frame assembly is assembled and the base assembly is assembled and installed in the installation position, the installation of the central control screen can be completed by buckling the middle frame assembly on the base cover plate of the base assembly. The disassembly and assembly is simple and convenient, and the connection is reliable.

[0020] In addition, the clamping structure formed by the clamping hole, the clamping step and the undercut structure improves the connection firmness between the base cover plate and the middle frame cover plate.

[0021] In addition, the clamping structure formed by the cooperation of the concave structure and the convex structure has a simple structure, and the base cover plate and the middle frame are easy to disassemble and separate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of the wall-mounted central control screen of the utility model;

[0023] Figure 2 This is a structural schematic diagram of the front side of the wall-mounted central control screen of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the back side of the wall-mounted central control screen of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the front side of the middle frame of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the back side of the middle frame of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the middle frame cover of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the base cover plate of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the pressing plate of the utility model;

[0030] Fig. 9It is a structural schematic diagram of the second circuit board of the utility model;

[0031] Fig.10 It is a structural schematic diagram of the base of the utility model;

[0032] Display screen 1; screen adhesive 2; middle frame 3; mounting groove 31; side groove 32; first chamber 33; first middle frame buckle 34; operation notch 35; second middle frame buckle 36; first screw hole 37; second screw hole 38; first circuit board 4; middle frame cover 5; middle frame cover buckle 51; avoidance position 52; operation notch 53; middle frame cover position 54; pin header female hole 55; base cover 6; recessed middle part 61; clamping hole 62; clamping step 63; second base cover position 64 ; operating protrusion 65; first row of pinholes 66; base cover mounting hole 67; pressing plate 7; supporting foot 71; second row of pinholes 72; pin header boss 73; first positioning notch 74; second circuit board 8; pin header 81; power terminal 82; network interface 83; second positioning notch 84; positioning hole 85; base 9; second chamber 91; terminal through hole 92; interface through hole 93; positioning boss 94; positioning column 95; supporting rib 96; third screw hole 97; base mounting hole 98. DETAILED DESCRIPTION

[0033] The following embodiments are combined with the accompanying drawings to further illustrate the specific implementation of the wall-mounted central control screen of the present utility model. The wall-mounted central control screen of the present utility model is not limited to the description of the following embodiments.

[0034] like Figure 1-3 As shown, the wall-mounted central control screen of this embodiment includes a display screen 1, a middle frame assembly and a base assembly which are stacked in sequence, the middle frame assembly includes a middle frame 3, a first circuit board 4 and a middle frame cover 5, the display screen 1 is fixed on the front side of the middle frame 3, the middle frame cover 5 is covered on the back side of the middle frame 3 to form a first cavity 33 for installing the first circuit board 4, the first circuit board 4 is loaded into the first cavity 33 and is electrically connected to the display screen 1, the base assembly includes a base cover 6, a second circuit board 8 and a base 9, the base 9 is fixed in the installation position, the base cover 6 is covered on the front side of the base 9 to form a second cavity 91, the second circuit board 8 is installed in the second cavity 91 and is electrically connected to the first circuit board 4, and the base cover 6 is respectively clamped with the middle frame cover 5 and the middle frame 3. In the wall-mounted central control screen of this embodiment, the base cover plate 6 plays the role of a connecting hub between the upper and lower parts. The base cover plate 6 is not only used to cover the base 9, but also used to snap with the middle frame cover plate 5 and the middle frame 3 of the middle frame assembly, so that after the middle frame assembly is assembled and the base assembly is assembled and installed in the installation position, the installation of the central control screen can be completed by buckling the middle frame assembly on the base cover plate 6 of the base assembly, which is simple and convenient to disassemble and assemble, and the connection is reliable. The installation position of the wall-mounted central control screen of this embodiment can be a wall or a cabinet, etc.

[0035] like Figure 1-3 As shown, the base cover plate 6 is made of a material with high strength, such as metal. The base cover plate 6 is stacked with the middle frame cover plate 5 and inserted into the first cavity 33 of the middle frame 3. The base cover plate 6 has a concave middle portion 61 ( Figure 7 ), the concave middle part 61 of the base cover plate 6 is inserted into the second chamber 91 of the base 9. The embedded design of the base cover plate 6 and the middle frame cover plate 5 makes the overall appearance of the central control screen neat and beautiful. The base 9 is provided with base mounting holes 98 ( Fig.10 ), the base cover plate 6 is provided with base cover plate mounting holes 67 (which correspond to the base mounting holes 98) on both sides of the base cover plate 6. Figure 7 ), fasteners such as screws can be used to fix the base cover 6 and the base 9 together in the installation position through the base cover installation holes 67 and the base installation holes 98.

[0036] like Figure 3 As shown, the base cover plate 6 is provided with at least one first base cover plate snap-in position and at least one second base cover plate snap-in position 64, the middle frame cover plate 5 is provided with a middle frame cover plate snap-in 51 snap-fitted with the first base cover plate snap-in position, and the middle frame 3 is provided with a first middle frame snap-in 34 snap-fitted with the second base cover plate snap-in position 64. Of course, the snap-in connection between the base cover plate 6 and the middle frame cover plate 5 and the middle frame 3 can also be that the base cover plate 6 is provided with a snap-in structure, and the middle frame cover plate 5 and the middle frame 3 are provided with a snap-in structure.

[0037] like Figure 3 and Figure 6-7 As shown, the clamping structure between the base cover plate 6 and the middle frame cover plate 5 of this embodiment, the first base cover plate clamping position includes a clamping hole 62 and a clamping step 63 arranged on one side of the clamping hole 62, the middle frame cover plate buckle 51 is an inverted buckle structure, and the buckle portion of the middle frame cover plate buckle 51 passes through the clamping hole 62 and then buckles on the clamping step 63. The clamping structure formed by the clamping hole 62 and the clamping step 63 and the inverted buckle structure improves the connection firmness between the base cover plate 6 and the middle frame cover plate 5.

[0038] like Figure 3 , Figure 5 and Figure 7As shown, the clamping structure between the base cover plate 6 and the middle frame 3 of this embodiment, the second base cover plate clamping position 64 is set at the edge of the base cover plate 6, which is a structure with a front convex and a back concave structure, the middle frame cover plate 5 is provided with an avoidance clamping position 52 corresponding to the front convex of the second base cover plate clamping position 64, and the first middle frame buckle 34 is a convex structure set on the inner side wall of the first chamber 33 of the middle frame 3, buckled in the back concave of the second base cover plate clamping position 64. The clamping structure formed by the concave structure and the convex structure is simple in structure, and the base cover plate 6 and the middle frame 3 are easy to disassemble and separate. Of course, as other embodiments, the clamping structure between the base cover plate 6 and the middle frame cover plate 5 can also adopt the clamping structure between the base cover plate 6 and the middle frame 3 of this embodiment or other clamping structures, and the clamping structure between the base cover plate 6 and the middle frame 3 can also adopt the clamping structure between the base cover plate 6 and the middle frame 5 of this embodiment or other clamping structures.

[0039] like Figure 2-3 , Figure 5-7 As shown, the disassembly structure between the base cover plate 6 and the middle frame assembly of this embodiment, the base cover plate 6 is provided with an outwardly protruding operation protrusion 65 on one side, and the middle frame 3 is provided with an operation notch 35 corresponding to the operation protrusion 65, the operation protrusion 65 extends into the operation notch 35, and there is an operation gap between the operation notch 35. The middle frame cover plate 5 is provided with an operation recess 53 corresponding to the operation protrusion 65, and the operation notch 35 is flush with the operation recess 53 to extend the operation gap and facilitate force application. The operation protrusion 65 of the base cover plate 6 can be pried after inserting a flat-blade screwdriver into the operation gap, thereby realizing the disassembly and separation of the base cover plate 6 and the middle frame assembly, and the disassembly action is simple and easy to operate.

[0040] like Figure 4-6As shown, the installation structure of the middle frame assembly of this embodiment, the side of the middle frame cover plate 5 is provided with at least one recessed middle frame cover plate position 54, and the inner side wall of the first cavity 33 of the middle frame 3 is provided with a raised second middle frame buckle 36, and the second middle frame buckle 36 is engaged with the middle frame cover plate position 54. The middle frame 3 and the first circuit board 4 are fixedly connected by a first screw, and the middle frame 3 and the first circuit board 4 are respectively provided with a first screw hole 37 that cooperates with the first screw; the middle frame 3 and the middle frame cover plate 5 are fixedly connected by a second screw, and the middle frame 3 and the middle frame cover plate 5 are respectively provided with a second screw hole 38 that cooperates with the second screw. The first screw hole 37 and the second screw hole 38 on the middle frame 3 are arranged on the bottom of the first cavity 33, and the position of the second screw hole 38 on the middle frame 3 is closer to the bottom edge of the first cavity 33 of the middle frame 3 than the first screw hole 37. The back of the display screen 1 has a raised middle portion, the front of the middle frame 3 is provided with a mounting groove 31 corresponding to the raised middle portion of the display screen 1 and a side groove 32 arranged around the mounting groove 31, the sides of the display screen 1 are fixed in the side groove 32 by the screen adhesive 2, and the raised middle portion of the display screen 1 is inserted into the mounting groove 31.

[0041] like Figure 3 , Figure 6-10 As shown, the electrical connection structure between the first circuit board 4 and the second circuit board 8 of this embodiment, the first circuit board 4 is provided with a pin header, the middle frame cover 5 is provided with a pin header hole 55 for the pin header to pass through, the second circuit board 8 is provided with a pin header 81 located on the front for plugging with the pin header, and a power terminal 82 and a network interface 83 located on the back, the base cover 6 is provided with a first row of pin holes 66 for the pin header 81 to pass through, and the base 9 is provided with a terminal through hole 92 corresponding to the power terminal 82 and an interface through hole 93 corresponding to the network interface 83. The power terminal 82 can be connected to an external power supply through the terminal through hole 92. The network interface 83 can be connected to a wired network through the interface through hole 93.

[0042] like Figure 1 and Figure 8-9 As shown, the base assembly also includes a pressing plate 7 disposed between the second circuit board 8 and the base cover 6. The back of the pressing plate 7 is provided with a plurality of raised supporting feet 71. The supporting feet 71 of the pressing plate 7 press on the front of the second circuit board 8 to limit the second circuit board 8 in the second chamber 91, so as to prevent the second circuit board 8 from being offset and affecting its connection with other parts. The pressing plate 7 is provided with a second row of pinholes 72 for the pin header 81 of the second circuit board 8 to pass through. Specifically, the pressing plate 7 is provided with a pin header boss 73. The second row of pinholes 72 is arranged on the pin header boss 73 and is a small hole structure that cooperates with the single pin structure of the pin header 81; as shown Figure 7 As shown, the first row of needle holes 66 is a large hole structure that cooperates with the needle row boss 73.

[0043] like Figure 7-10 As shown, the installation structure of the base assembly of this embodiment, the second chamber 91 of the base 9 is provided with two positioning bosses 94 on both sides, the two sides of the pressure plate 7 are provided with first positioning notches 74 corresponding to the positioning bosses 94, and the two sides of the second circuit board 8 are provided with second positioning notches 84 corresponding to the positioning bosses 94; and / or, the second chamber 91 of the base 9 is provided with a positioning column 95 and a support rib 96 connected to the positioning column 95, the second circuit board 8 is provided with a positioning hole 85 corresponding to the positioning column 95, and the second circuit board 8 is sleeved on the positioning column 95 through the positioning hole 85 and placed on the support rib 96. During installation, the pressure plate 7 and the second circuit board 8 can be quickly and accurately positioned in the base 9, and it is not easy to shift the position. The base 9, the second circuit board 8, the pressure plate 7 and the base cover 6 are fixedly connected by a third screw, and the base 9, the second circuit board 8, the pressure plate 7 and the base cover 6 are respectively provided with a third screw hole 97 that cooperates with the third screw. Further, the third screw hole 97 of the base 9 is set on the positioning column 95.

[0044] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0045] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. Wall-mounted central control screen, characterized by: The invention comprises a display screen (1), a middle frame assembly and a base assembly which are stacked in sequence, wherein the middle frame assembly comprises a middle frame (3), a first circuit board (4) and a middle frame cover plate (5), wherein the display screen (1) is fixed on the front surface of the middle frame (3), the middle frame cover plate (5) is covered on the back surface of the middle frame (3) to form a first cavity (33) for installing the first circuit board (4), and the base assembly comprises a base cover plate (6), a second circuit board (8) and a base (9), wherein the base cover plate (6) is covered on the front surface of the base (9) to form a second cavity (91), the second circuit board (8) is installed in the second cavity (91) and is electrically connected to the first circuit board (4), and the base cover plate (6) is respectively clamped with the middle frame cover plate (5) and the middle frame (3).

2. The wall-mounted central control screen according to claim 1, characterized in that: The base cover plate (6) and the middle frame cover plate (5) are stacked and inserted into the first cavity (33) of the middle frame (3); the base cover plate (6) has a recessed middle portion (61); and the recessed middle portion (61) of the base cover plate (6) is inserted into the second cavity (91) of the base (9).

3. The wall-mounted central control screen according to claim 1 or 2, characterized in that: The base cover plate (6) is provided with at least one first base cover plate snap-in position and at least one second base cover plate snap-in position (64), the middle frame cover plate (5) is provided with a middle frame cover plate snap-in (51) snap-fitted with the first base cover plate snap-in position, and the middle frame (3) is provided with a first middle frame snap-in (34) snap-fitted with the second base cover plate snap-in position (64).

4. The wall-mounted central control screen according to claim 3 is characterized in that: The first base cover plate snap-in position comprises a snap-in hole (62) and a snap-in step (63) arranged on one side of the snap-in hole (62); the middle frame cover plate snap-in (51) is an inverted snap-in structure; the snap-in portion of the middle frame cover plate snap-in (51) passes through the snap-in hole (62) and snaps onto the snap-in step (63).

5. The wall-mounted central control screen according to claim 3 is characterized in that: The second base cover plate clamping position (64) is arranged at the edge of the base cover plate (6), and is a structure with a convex front and a concave back. The middle frame cover plate (5) is provided with an avoidance clamping position (52) corresponding to the front convexity of the second base cover plate clamping position (64). The first middle frame buckle (34) is a convex structure arranged on the inner side wall of the first cavity (33) of the middle frame (3), and buckled in the concave back of the second base cover plate clamping position (64).

6. The wall-mounted central control screen according to claim 1 or 2, characterized in that: An operating protrusion (65) protruding outward is provided on one side of the base cover plate (6), and an operating notch (35) corresponding to the operating protrusion (65) is provided on the middle frame (3). The operating protrusion (65) extends into the operating notch (35) and has an operating gap between the operating protrusion (65) and the operating notch (35).

7. The wall-mounted central control screen according to claim 1, characterized in that: At least one recessed middle frame cover plate snap-in position (54) is provided on the side of the middle frame cover plate (5), and a raised second middle frame snap-in (36) is provided on the inner side wall of the first chamber (33) of the middle frame (3), and the second middle frame snap-in (36) is snap-fitted with the middle frame cover plate snap-in position (54).

8. The wall-mounted central control screen according to claim 1, characterized in that: The back of the display screen (1) has a raised middle portion, the front of the middle frame (3) is provided with a mounting groove (31) corresponding to the raised middle portion of the display screen (1) and a side groove (32) arranged around the mounting groove (31), the sides of the display screen (1) are fixed in the side groove (32) by screen adhesive (2), and the raised middle portion of the display screen (1) is inserted into the mounting groove (31).

9. The wall-mounted central control screen according to claim 1, characterized in that: The first circuit board (4) is provided with a pin header, the middle frame cover (5) is provided with a pin header hole (55) for the pin header to pass through, the second circuit board (8) is provided with a pin header (81) located on the front for plugging with the pin header, and a power terminal (82) and a network interface (83) located on the back, the base cover (6) is provided with a first row of pin holes (66) for the pin header (81) to pass through, and the base (9) is provided with a terminal through hole (92) corresponding to the power terminal (82) and an interface through hole (93) corresponding to the network interface (83).

10. The wall-mounted central control screen according to claim 1, characterized in that: The base assembly also includes a pressure plate (7) arranged between the second circuit board (8) and the base cover plate (6), the back side of the pressure plate (7) being provided with a plurality of raised supporting feet (71), and the supporting feet (71) of the pressure plate (7) being pressed on the front side of the second circuit board (8).

11. The wall-mounted central control screen according to claim 10, characterized in that: The second chamber (91) of the base (9) is provided with two positioning bosses (94) on both sides, the pressure plate (7) is provided with first positioning notches (74) corresponding to the positioning bosses (94) on both sides, and the second circuit board (8) is provided with second positioning notches (84) corresponding to the positioning bosses (94) on both sides; and / or, the second chamber (91) of the base (9) is provided with a positioning column (95) and a support rib (96) connected to the positioning column (95), the second circuit board (8) is provided with a positioning hole (85) corresponding to the positioning column (95), and the second circuit board (8) is sleeved on the positioning column (95) through the positioning hole (85) and placed on the support rib (96).

12. The wall-mounted central control screen according to claim 10, characterized in that: The base (9), the second circuit board (8), the pressure plate (7) and the base cover plate (6) are fixedly connected by a third screw, and the base (9), the second circuit board (8), the pressure plate (7) and the base cover plate (6) are respectively provided with a third screw hole (97) that cooperates with the third screw.

13. The wall-mounted central control screen according to claim 1, characterized in that: The base (9) is provided with base mounting holes (98) on both sides for fixing at the mounting position, and the base cover plate (6) is provided with base cover plate mounting holes (67) corresponding to the base mounting holes (98) on both sides.

14. The wall-mounted central control screen according to claim 1, characterized in that: The middle frame (3) and the first circuit board (4) are fixedly connected by a first screw, and the middle frame (3) and the first circuit board (4) are respectively provided with a first screw hole (37) that cooperates with the first screw; the middle frame (3) and the middle frame cover plate (5) are fixedly connected by a second screw, and the middle frame (3) and the middle frame cover plate (5) are respectively provided with a second screw hole (38) that cooperates with the second screw.

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