CN213303604U

CN213303604U - Wall-mounted LED multimedia integrated machine

Info

Publication number: CN213303604U
Application number: CN202021261677.8U
Authority: CN
Inventors: 王明臣; 赵毅; 何小龙
Original assignee: Zhejiang Deguangxin Electronic Technology Co ltd
Current assignee: Zhejiang Deguangxin Electronic Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-28
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a wall-hanging LED multimedia integrated machine, include: LED display screen, controlling means mounting bar, first connecting elements, frame subassembly, controlling means and installation component. Wherein, the controlling means mounting bar is connected with a side edge of LED display screen. The control device mounting bar is of a hollow structure, and the control device is mounted in the hollow structure. The end parts of the two ends of the frame component are respectively connected with the two ends of the control device mounting bar to form a rectangular frame. The mounting assembly comprises a plurality of groups of mounting plates, cross beams and vertical beams. Wherein, the mounting panel includes a plurality of mounting panel monomers and a plurality of first couple. One side of the beam is fixedly provided with a second hook. The LED display screen has the beneficial effects that the control device is arranged at the hollow-out position of the control device mounting bar, so that the back of the LED display screen is flat. The first hook on the mounting plate of the back mounting assembly of the LED display screen is clamped with the second hook on the cross beam, so that the mounting and the dismounting are convenient.

Description

Wall-mounted LED multimedia integrated machine

Technical Field

The utility model relates to a display device field especially relates to a wall-hanging LED multimedia integrated machine.

Background

The LED multimedia all-in-one machine is a device which completely adopts an LED (light emitting diode) as a display device, namely, a display screen application product which is designed by adopting an LED display screen and has a television function in ultrahigh density, the size is not limited, an LED light source is used for replacing a traditional fluorescent lamp tube, and the LED multimedia all-in-one machine has the outstanding advantages of higher picture quality, longer theoretical life, more energy conservation, more environment-friendly manufacturing process, thinner liquid crystal display panel and the like.

With the more mature production and manufacturing process of the LED, the LED display is applied more and more, but the control device of most LED multimedia all-in-one machines at present is arranged on the back of the LED display screen, so that the back of the LED display screen forms a bulge. In the process of installing the LED display screen, the LED display screen cannot be installed on a wall due to the fact that the back of the LED is uneven. Moreover, in the prior art, the LED display screen is fixed through a fixing structure on the support frame, and then the LED display screen is supported through a base arranged at the bottom of the support frame. The installation process of prior art is loaded down with trivial details, and the base is fixed insecure moreover, makes LED display screen installation effect poor. Therefore, a wall-mounted LED multimedia all-in-one machine is needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a wall-hanging LED multimedia integrated machine aims at solving current LED multimedia integrated machine installation loaded down with trivial details, the poor problem of installation effect.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include: a wall-mounted LED multimedia kiosk, comprising: LED display screen, controlling means mounting bar, first connecting elements, frame subassembly, controlling means and installation component.

Wherein, the controlling means mounting bar is connected with a side edge of LED display screen. The control device mounting bar is of a hollow structure, the control device is mounted in the hollow structure, and the outer surface of the control device is located in the hollow structure.

The end parts of the two ends of the frame assembly are respectively connected with the two ends of the control device mounting bar through the first connecting assembly to form a rectangular frame, and the rectangular frame is arranged around the LED display screen. The rectangular frame protrudes out of the plane where the screen of the LED display screen is located.

The control device is electrically connected with the control LED display screen.

The mounting assembly comprises a plurality of groups of mounting plates, a cross beam clamped with each group of mounting plates and a vertical beam vertically mounted with the cross beam. Wherein, every group mounting panel all includes a plurality of mounting panel monomers and with a plurality of mounting panel monomer integrated into one piece's a plurality of first couple. One side fixed mounting of crossbeam has the second couple of dismantling the connection with first couple phase-match, and the opposite side fixed connection of crossbeam erects the roof beam, erects the roof beam and is used for connecting outside wall body.

Preferably, the cross beam is made of an aluminum profile. And the aluminum profile has high hardness, is not easy to deform and has long service life. The one end tip of crossbeam is provided with four well cavitys along the horizontal direction interval, is equipped with four cavitys in order to ensure under the prerequisite of aluminium alloy light, can install LED display screen with laminating simultaneously.

Preferably, a plurality of the cross beams are fixedly connected with the plurality of the vertical beams through screws. And the vertical beams are fixedly connected with an external wall body through screws. The cross beam and the vertical beam and the wall body are fixed through screws, so that the LED display screen is convenient and simple to mount and dismount.

Preferably, the frame component is of a hollow structure, the frame component is arranged to be of the hollow structure, power lines are convenient to run, and the LED display screen equipment is integrally clean and tidy. The frame assembly comprises a first frame, a second frame, a third frame and a second connecting assembly.

The first frame is arranged on one side, opposite to the control device mounting bar, of the LED display screen. The second frame and the third frame are respectively arranged on the other two side faces of the LED display screen. The first frame is connected with the second frame and the third frame through the second connecting assembly respectively. The control device mounting bar is connected with the second frame and the third frame through the second connecting assembly respectively.

Preferably, the LED display screen further comprises an infrared touch assembly, wherein the infrared touch assembly protrudes out of the plane where the screen of the LED display screen is located and can form an infrared touch frame.

Preferably, the infrared touch assembly is composed of two infrared touch transmitting assemblies and two infrared touch receiving assemblies. And the two infrared touch transmitting assemblies are respectively clamped in the first frame and the second frame. The two infrared touch receiving assemblies are respectively clamped in the control device mounting bar and the third frame, each infrared touch transmitting assembly comprises a first infrared filter plate group and an infrared transmitting lamp group, each infrared touch receiving assembly comprises a second infrared filter plate group and an infrared receiving lamp group, each infrared transmitting lamp group is perpendicular to the first infrared filter plates, and each infrared receiving lamp group is perpendicular to the second infrared filter plates. The function diversification and the infrared touch function of the wall-mounted LED multimedia all-in-one machine are realized. And the touch pen is matched for use with the infrared touch component.

The first infrared filtering plate group comprises an infrared filtering light plate with the same length as the first frame and an infrared filtering light plate with the same length as the second frame.

Meanwhile, the second infrared filtering plate group comprises an infrared filtering light plate with the same length as the control device mounting bar and an infrared filtering light plate with the same length as the third frame. The two infrared emission assemblies comprise an infrared emission lamp group with the same length as the first frame and an infrared emission lamp group with the same length as the second frame. The two infrared receiving assemblies comprise an infrared receiving lamp group with the length equal to that of the control device mounting bar and another infrared receiving lamp group with the length equal to that of the third frame. The two infrared emission lamp groups are sequentially electrified and vertically shoot to the corresponding control device mounting bar and the third frame; the two infrared receiving lamp groups are sequentially electrified and vertically shoot to the first frame and the second frame corresponding to the two infrared receiving lamp groups.

Preferably, the control device comprises a system control mainboard, a USB port, a connecting plug board, a key board, a loudspeaker and a power board; the system control mainboard is electrically connected with the USB port, the connecting plugboard, the key board, the loudspeaker and the power board and is integrated in the control device mounting bar. Because the control device mounting bar is of a hollow structure. Therefore, a plurality of mounting holes for a system control mainboard, a USB port, a connecting plug board, a key board, a loudspeaker, a power board and the like in the integrated control device are arranged in the control integrated control strip; on the system control mainboard all with a plurality of parts such as USB port, connection picture peg, keypad, loudspeaker and power strip all integrated and the controlling means mounting bar of LED display screen, the back can not appear protruding when make full use of space and save space to the back of LED display screen is level and smooth, the subsequent installation of being convenient for.

Preferably, the control device further includes a terminal block and a relay. The terminal block is embedded in the control device mounting bar and is electrically connected with the power panel. The relay is installed in the controlling means mounting bar.

Preferably, the control device mounting bar further includes a front decorative plate, a horn housing, and a back plate. The front decorative plate is buckled on the front surface of the control device mounting bar. The horn cover is arranged at two ends of the front decorative plate and buckled on the control device mounting bar. The back plate is buckled on the back of the control device mounting bar. The front decorative plate, the horn cover and the back plate are buckled on the control device mounting bar to form an integral structure, and the control device inside the control device mounting bar is protected.

(III) advantageous effects

The utility model has the advantages that: the utility model provides a wall-hanging LED multimedia integrated machine through being provided with the controlling means mounting bar in LED display screen side, installs controlling means in the fretwork department of controlling means mounting bar, and then forms the structure of controlling means and controlling means mounting bar integral type for LED display screen back levels. When the wall-mounted LED multimedia all-in-one machine is installed, a first hook on the installation plate of the back installation assembly of the LED display screen can be clamped with a second hook on the cross beam, and installation on a wall is completed. The wall-mounted type wall is suitable for walls of different scenes such as meeting rooms and superstores. But also is convenient for installation and disassembly.

Drawings

Fig. 1 is a schematic perspective view of a wall-mounted LED multimedia all-in-one machine provided by the present invention;

fig. 2 is a rear view of the wall-mounted LED multimedia all-in-one machine provided by the present invention;

fig. 3 is a side sectional view of the wall-mounted LED multimedia all-in-one machine provided by the present invention;

FIG. 4 is an enlarged detail view of the area labeled "A" of the wall-mounted LED multimedia kiosk of FIG. 3;

fig. 5 is an exploded schematic view of the wall-mounted LED multimedia all-in-one machine provided by the present invention;

fig. 6 is a schematic structural decomposition diagram of the control device mounting bar of the wall-mounted LED multimedia all-in-one machine provided by the present invention.

[ description of reference ]

1: an LED display screen;

2: a control device mounting bar; 21: a front decorative panel; 22: a horn cover; 23: a back plate;

3: a first connection assembly;

4: a frame component; 41: a first frame; 42: a second frame; 43: a third frame; 44: a second connection assembly;

5: an infrared touch component;

6: a control device; 61: a system control main board; 62: a USB port; 63: connecting the plugboards; 64: a key sheet; 65: a horn; 66: a power panel; 67: a terminal block; 68: a relay;

7: mounting the component; 71: mounting a plate; 711: a mounting plate monomer; 712: a first hook; 713: a second hook; 72: a cross beam; 73: erecting a beam;

8: a touch pen.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

The embodiment of the utility model provides a wall-hanging LED multimedia integrated machine, through be provided with controlling means mounting bar 2 in 1 side of LED display screen, install controlling means 6 in the fretwork department of controlling means mounting bar 2, and then form the structure of controlling

means

6 and 2 integral types of controlling means mounting bar for 1 back of LED display screen levels. When the wall-mounted LED multimedia all-in-one machine is installed, the first hook 712 on the installation plate 71 of the back installation component 7 of the LED display screen 1 can be clamped with the second hook 713 on the cross beam 72, and the installation on the wall can be completed. The wall-mounted type wall is suitable for walls of different scenes such as meeting rooms and superstores. But also is convenient for installation and disassembly.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1 to 6, a wall-mounted LED multimedia kiosk includes: LED display screen 1, controlling means mounting bar 2, first connecting component 3, frame subassembly 4, controlling means 6 and installation component 7.

Wherein, controlling means mounting bar 2 is connected with one side edge of LED display screen 1. The control device mounting bar 2 is of a hollow structure, the control device 6 is mounted in the hollow structure, and the outer surface of the control device 6 is located in the hollow structure.

The end parts of the two ends of the frame component 4 are respectively connected with the two ends of the control device mounting bar 2 through the first connecting component 3 to form a rectangular frame, and the rectangular frame is arranged around the LED display screen. The rectangular frame protrudes out of the plane where the screen of the LED display screen is located.

The control device 6 is electrically connected with the control LED display screen 1.

The mounting assembly 7 comprises a plurality of sets of mounting plates 71, a cross beam 72 clamped with each set of mounting plates 71 and a vertical beam 73 vertically mounted with the cross beam 72. Each of the mounting plates 71 includes a plurality of mounting plate units 711 and a plurality of first hooks 712 integrally formed with the mounting plate units 711. The first hook 712 is provided above the mounting plate 71. A second hook 713 matched and detachably connected with the first hook 712 is fixedly arranged on one side of the cross beam 72. The second hook 713 is provided above one side of the cross member. The other side of the cross beam 72 is fixedly connected to a vertical beam 73, and the vertical beam 73 is used for connecting an external wall.

Wherein, the multiunit mounting panel is parallel to each other and the interval sets up in the back of LED display screen. The plurality of groups of mounting boards 71 can be distributed at intervals according to the size of the LED display screen 1. Specifically, 64 LED boxes are arranged in a matrix form to form a 16 × 4 LED display screen 1, and an installation plate 71 is screwed between the 1 st row and the 2 nd row of LED boxes on the back of the LED display screen 1; the mounting plate 71 is also screwed between the 3 rd row and the 4 th row of LED boxes on the back of the LED display screen 1. Each mounting plate 71 is composed of 3 mounting plate monomers 711, and the mounting plates are convenient to detach and mount according to the size of the LED display screen 1.

Further, the cross beam 72 is made of aluminum profile. And the aluminum profile has high hardness, is not easy to deform and has long service life. One end of the beam 72 is provided with four hollow chambers at intervals along the horizontal direction, and the four chambers are arranged to be capable of being mounted on the LED display screen 1 in a fitting manner on the premise of ensuring the light weight of the aluminum profile beam 72.

Further, the plurality of cross beams 72 are fixedly connected to the plurality of vertical beams 73 by screws. The vertical beams 73 are fixedly connected with an external wall body through screws. The cross beam 72 and the vertical beam 73 and the wall body are fixed through screws, so that the LED display screen 1 is convenient and simple to mount and dismount.

Further, frame component 4 is hollow structure, sets up frame component 4 for hollow structure is convenient for the power cord and walks the line for 1 equipment of LED display screen is whole clean and tidy. The bezel assembly 4 includes a first bezel 41, a second bezel 42, a third bezel 43, and a second connection assembly 44.

The first frame 41 is disposed on a side of the LED display screen 1 opposite to the control device mounting bar 2. The second frame 42 and the third frame 43 are respectively disposed on the other two sides of the LED display screen 1. The first frame 41 is connected to the second frame 42 and the third frame 43 by the second connection assembly 44, respectively. The control device mounting bar 2 is connected to the second and

third frames

42 and 43, respectively, by the first connection assembly 3.

Further, the LED display screen comprises an infrared touch assembly 5, wherein the infrared touch assembly 5 protrudes out of the plane where the screen of the LED display screen 1 is located and can form an infrared touch frame.

Further, the infrared touch assembly 5 is composed of two infrared touch transmitting assemblies and two infrared touch receiving assemblies. And the two infrared touch transmitting components are respectively clamped in the first frame 41 and the second frame 42. Two infrared touch receiving assemblies are respectively clamped in the control device mounting bar 2 and the third frame 43, each infrared touch transmitting assembly comprises a first infrared filter plate group and an infrared transmitting lamp group, each infrared touch receiving assembly comprises a second infrared filter plate group and an infrared receiving lamp group, each infrared transmitting lamp group is perpendicular to the first infrared filter plates, and each infrared receiving lamp group is perpendicular to the second infrared filter plates. The function diversification and the infrared touch function of the wall-mounted LED multimedia all-in-one machine are realized. And is also provided with a touch pen 8 which is used for matching the use of the infrared touch component.

Wherein the first infrared filter plate group includes an infrared filter plate having a length corresponding to the length of the first frame 41 and an infrared filter plate having a length corresponding to the length of the second frame 42.

Meanwhile, the second infrared filter plate group includes an infrared filter plate having a length identical to that of the control device mounting bar 2 and an infrared filter plate having a length identical to that of the third frame 43. The two infrared emission assemblies include an infrared emission lamp set having a length equal to that of the first frame 41 and another infrared emission lamp set having a length equal to that of the second frame 42. The two infrared receiving assemblies comprise an infrared receiving lamp group with the length equal to that of the control device mounting bar and another infrared receiving lamp group with the length equal to that of the third frame 43. The two infrared emission lamp sets are sequentially electrified and vertically shot to the corresponding control device mounting bar and the third frame 43; the two infrared receiving lamp sets are sequentially electrified and vertically emit to the first frame 41 and the second frame 42 corresponding to the two infrared receiving lamp sets.

The control device 6 comprises a system control main board 61, a USB port 62, a connecting plug board 63, a key board 64, a loudspeaker 65 and a power board 66; the system control main board 61 is electrically connected with the USB port 62, the connection plug board 63, the key board 64, the speaker 65 and the power board 66, and is integrated in the control device mounting bar 2. Because the control device mounting bar 2 is of a hollow structure, and the outer surface of the control device 6 is located in the hollow structure. For this purpose, a plurality of mounting holes for a system control main board 61, a USB port 62, a connection plug board 63, a key board 64, a speaker 65, a power board 66 and the like in the integrated control device 6 are arranged in the control integrated control strip 2; on the system control mainboard 61 all integrated with a plurality of parts such as USB port 62, connection picture peg 63, keypad 64, loudspeaker 65 and power strip 66 and the controlling means mounting bar 2 of LED display screen 1, the back can not appear protruding when make full use of space and save space to the back of LED display screen is level and smooth, the subsequent installation of being convenient for. The power board 63 is electrically connected with the power switch 9, and the power on/off of the LED display screen 1 is controlled by the power switch 9. Meanwhile, the power panel 63 is provided with a hidden plug connection cavity which is used for plugging an external power line, so that the safety and the concealment of the power line can be ensured.

The control device 6 further includes a terminal block 67 and a relay 68. The terminal block 67 is embedded in the control device mounting bar 2, and the terminal block 67 is electrically connected to the power supply board 63. The relay 68 is installed in the control device installation bar 2.

The control device mounting bar 2 further includes a front decorative plate 21, a horn cover 22, and a back plate 23. The front decorative plate 21 is fastened to the front surface of the control device mounting bar 2. The horn covers 22 are provided at both ends of the front trim 21 and fastened to the control device mounting bar 2. The back plate 23 is buckled on the back of the control device mounting bar 2. The front decorative plate 21, the horn cover 22 and the back plate 23 are buckled on the control device mounting bar 2 to form an integral structure, and play a role in protecting the control device 6 inside the control device mounting bar 2.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A wall-mounted LED multimedia all-in-one machine is characterized by comprising: the LED display screen comprises an LED display screen (1), a control device mounting bar (2), a first connecting assembly (3), a frame assembly (4), a control device (6) and a mounting assembly (7);

the control device mounting bar (2) is connected with one side edge of the LED display screen (1), the control device mounting bar (2) is of a hollow structure, the control device (6) is mounted in the hollow structure, and the outer surface of the control device (6) is located in the hollow structure;

the end parts of two ends of the frame component (4) are respectively connected with two ends of the control device mounting bar (2) through a first connecting component (3) to form a rectangular frame, the rectangular frame is arranged around the LED display screen (1), and the rectangular frame protrudes out of the plane where the screen of the LED display screen (1) is located;

the control device (6) is electrically connected with the LED display screen (1);

installation component (7) include multiunit mounting panel (71), with every group crossbeam (72) of mounting panel (71) looks joint and with perpendicular roof beam (73) of installing of crossbeam (72), wherein, every group mounting panel (71) all include a plurality of mounting panel monomers (711) and with a plurality of mounting panel monomers (711) a plurality of first couple (712) of integrated into one piece, one side fixed mounting of crossbeam (72) have with first couple (712) phase-match can dismantle second couple (713) of connection, the opposite side fixed connection of crossbeam (72) in erect roof beam (73), erect roof beam (73) and be used for connecting outside wall body.

2. The wall-mounted LED multimedia kiosk of claim 1 wherein: the material of crossbeam (72) adopts the aluminium alloy, just the one end tip of crossbeam (72) is provided with four cavity chambeies along the horizontal direction interval.

3. The wall-mounted LED multimedia kiosk of claim 2 wherein: the cross beam (72) is fixedly connected with the vertical beam (73) through a screw;

the vertical beam (73) is fixedly connected with an external wall body through a screw.

4. The wall-mounted LED multimedia kiosk of claim 3 wherein: the frame assembly (4) is of a hollow structure, and the frame assembly (4) comprises a first frame (41), a second frame (42), a third frame (43) and a second connecting assembly (44);

first frame (41) are located LED display screen (1) be the opposite of one side of controlling means mounting bar (2), second frame (42) with third frame (43) are located respectively the other both sides face of LED display screen (1), first frame (41) pass through second coupling assembling (44) respectively with second frame (42) with third frame (43) are connected, controlling means mounting bar (2) pass through first coupling assembling (3) respectively with second frame (42) with third frame (43) are connected.

5. The wall-mounted LED multimedia kiosk of claim 4 wherein: the LED display screen is characterized by further comprising an infrared touch assembly (5), wherein the infrared touch assembly (5) protrudes out of the plane where the screen of the LED display screen (1) is located and can form an infrared touch frame.

6. The wall-mounted LED multimedia kiosk of claim 5 wherein: the infrared touch assembly (5) is composed of two infrared touch transmitting assemblies and two infrared touch receiving assemblies, the two infrared touch transmitting assemblies are respectively connected in the first frame (41) and the second frame (42) in a clamped mode, and the two infrared touch receiving assemblies are respectively connected in the control device mounting bar (2) and the third frame (43) in a clamped mode.

7. A wall-mounted LED multimedia kiosk according to any of claims 1-6, wherein: controlling means (6) are including system control mainboard (61), USB port (62), connection picture peg (63), keypad (64), loudspeaker (65) and power strip (66), system control mainboard (61) all with USB port (62), connection picture peg (63), keypad (64), loudspeaker (65) and power strip (66) electricity be connected and all integrated in controlling means mounting bar (2).

8. The wall-mounted LED multimedia kiosk of claim 7 wherein: the control device (6) further comprises a terminal block (67) and a relay (68), the terminal block (67) is embedded in the control device mounting bar (2), the terminal block (67) is electrically connected with the power panel (66), and the relay (68) is mounted in the control device mounting bar (2).

9. The wall-mounted LED multimedia kiosk of claim 8 wherein: the control device mounting bar (2) further comprises a front decorative plate (21), a horn cover (22) and a back plate (23);

the front decorative plate (21) is buckled on the front surface of the control device mounting bar (2);

the horn covers (22) are arranged at two ends of the front decorative plate (21) and buckled on the control device mounting bar (2);

the back plate (23) is buckled on the back of the control device mounting bar (2);

the front decorative plate (21), the horn cover (22) and the back plate (23) are buckled on the control device mounting bar (2) to form an integral structure.