Display screen structure with key support and operation machine

Abstract

The utility model relates to the technical field of display screen structures, in particular to a display screen structure with a key support and an operation machine.The display screen structure comprises a back shell, a display screen module, the key support, a mainboard and a key assembly, the back shell is provided with a containing cavity, and a mounting part is formed at an opening of the containing cavity; the display screen module and the key support are installed on the installation portion of the back shell, key holes are formed in the key support, the main board is fixed in the containing cavity of the back shell, and the key assembly is connected with the main board and penetrates through the key holes. The button support is arranged on the back shell, the button area is formed on the button support, a front cover of a traditional button display screen is omitted, when the buttons need to be increased or decreased, only the button support needs to be independently designed and replaced, the button support is simple in structure and small in size, and compared with the front cover in a traditional structure, the button display screen is convenient to use. The key support is low in manufacturing cost, and the keys of the display screen structure can be increased or decreased with low cost by replacing the key support.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen structure technical field especially, relates to a display screen structure and operation machinery of key support. BACKGROUND

[0002] The display screen with key, the structure main part generally divides into front cover, back cover, liquid crystal screen and mainboard, and the front cover is used for fixing liquid crystal screen and designs the key hole position, and after the assembly of the mainboard and the like parts are completed, the back cover is fixed to the front cover, and the assembly of the display screen structure is completed.

[0003] With the development of control technology, the display of the display screen can have expansion demand, at this moment, the key needs to be increased or reduced, then the original front cover structure cannot continue to be used, and the front cover needs to be redesigned and die manufacturing, and the cost is higher. INVENTION CONTENTS

[0004] The utility model provides a display screen structure and operation machinery with key support to solve the defect that the front cover needs to be redesigned and die manufacturing when the display screen structure with key increases or reduces the key, and the display screen structure key can be increased or reduced at low cost.

[0005] The utility model provides a display screen structure with key support, including back part shell, display screen module, key support, mainboard and key assembly, wherein, the back part shell includes bottom wall and side wall, the bottom wall with the side wall constructs a receiving cavity, the receiving cavity forms the installation department at the opening away from the bottom wall, the display screen module is fixedly installed in the installation department of the back part shell, the key support is detachably installed in the installation department of the back part shell, and it is located one side of the display screen module, and the key support constructs the key hole, the mainboard is fixed in the receiving cavity of the back part shell, the key assembly is connected to the mainboard, and is arranged in the key hole of the key support.

[0006] According to the display screen structure with key support provided by the utility model, the key support is provided with an extension support surface close to the edge of the display screen module, and one side of the display screen module is clamped to the extension support surface.

[0007] According to the display screen structure with key support provided by the utility model, the surface of the key support away from the mainboard forms a recessed installation area, the key hole is arranged in the recessed installation area, the recessed installation area is provided with a key membrane plate, and the key membrane plate is provided with a key film corresponding to the key hole.

[0008] According to the display screen structure with the key support provided by the utility model, the key film is detachably installed on the key membrane plate, the key film is silica gel film, and silk screen files are printed on the silica gel film.

[0009] According to the display screen structure with the key support provided by the utility model, the recessed mounting area is further provided with a first connecting hole, a first connecting piece is arranged in the first connecting hole, a first screw column or a second connecting hole is arranged on the main plate corresponding to the position of the first connecting hole, and the first connecting piece sequentially passes through the first connecting hole and the first screw column or the second connecting hole, so as to connect the key support and the main plate.

[0010] According to the display screen structure with the key support provided by the utility model, the key assembly comprises a key and a key cap, the key is connected to the main plate, the key cap is connected to the key, and the key cap is arranged in the key hole of the key support.

[0011] According to the display screen structure with the key support provided by the utility model, the display screen module comprises a liquid crystal display screen and a mounting panel, the mounting panel is fixedly installed on the mounting portion of the back shell, and the liquid crystal display screen is fixedly attached to the mounting panel.

[0012] According to the display screen structure with the key support provided by the utility model, the mounting panel is larger than the liquid crystal display screen in size, and after the liquid crystal display screen is attached to the mounting panel, the single-side size of the mounting panel is at least 4mm larger than the edge of the liquid crystal display screen.

[0013] According to the display screen structure with the key support provided by the utility model, the main plate is formed with a third mounting hole and a pin, the pin is arranged in the bottom wall of the back shell, a second connecting piece is arranged in the third mounting hole, the bottom wall of the back shell is provided with a second screw column or a fourth connecting hole corresponding to the position of the third mounting hole, and the second connecting piece sequentially passes through the third mounting hole and the second screw column or the fourth connecting hole, so as to connect the main plate and the back shell.

[0014] The utility model also provides a working machine containing the display screen structure with the key support.

[0015] The display screen structure with the key support provided by the utility model has the advantages that the key support is arranged on the back shell, the key area is formed on the key support, the front cover of the traditional key display screen is cancelled, when it is needed to increase or decrease the keys, only the key support needs to be designed and replaced, the key support has simple structure and small size, compared with the front cover in the traditional structure, the cost of mold opening and manufacturing is low, and the increase or decrease of the keys of the display screen structure is realized by replacing the key support at low cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is the appearance structure schematic view of the display screen structure with the key support provided by the utility model.

[0018] Figure 2 It is Figure 1 B-B section schematic view of.

[0019] Figure 3 It is Figure 1 A-A section schematic view of.

[0020] Figure 4 It is the explosion structure schematic view of the display screen structure with the key support provided by the utility model.

[0021] Signs: 1, back shell;2, display screen module;21, liquid crystal display screen;22, installation panel;3, key support;31, key hole;32, outer extension support surface;33, recessed installation area;34, key film plate;35, key film;36, first connecting hole;4, mainboard;41, pin;5, key assembly;51, key;52, key cap;6, first connecting piece;7, second connecting piece. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the drawings in the utility model, and the technical scheme in the utility model is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0023] In the description of the embodiments of the utility model, it needs to be explained that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as the limitation on the embodiments of the utility model.

[0024] In the description of the embodiments of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection, it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0025] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0027] The specific structure of the display screen structure with key support and working machine of the utility model is described below. Figures 1 to 4 The specific structure of the display screen structure with key support and working machine of the utility model is described below.

[0028] One embodiment of the utility model provides a display screen structure with key support, which is combinedFigure 1 and Figure 2 As shown, the display screen structure includes a back shell 1, a display screen module 2, a button bracket 3, a motherboard 4, and a button assembly 5. The back shell 1 includes a bottom wall and a side wall, which together form a receiving cavity. An opening in the receiving cavity away from the bottom wall forms a mounting portion. The display screen module 2 is fixedly mounted on the mounting portion of the back shell 1. The button bracket 3 is detachably mounted on the mounting portion of the back shell 1 and is located on one side of the display screen module 2. The button bracket 3 has a button hole 31. The motherboard 4 is fixed inside the receiving cavity of the back shell 1. The button assembly 5 is connected to the motherboard 4 and passes through the button hole 31 of the button bracket 3.

[0029] It is understood that the display screen structure with button bracket in this embodiment eliminates the need for a front cover of a traditional button display screen by setting a button bracket 3 on the back shell 1 and forming a button area on the button bracket 3. When it is necessary to add or remove buttons, only the button bracket 3 needs to be designed and replaced separately. The button bracket 3 has a simple structure and small size. Compared with the front cover in the traditional structure, the mold manufacturing cost is low. The addition or removal of buttons in the display screen structure can be achieved at low cost by replacing the button bracket 3.

[0030] In some embodiments of the display screen structure with button bracket of this utility model, see [reference needed]. Figure 2 or Figure 3 As shown, the button bracket 3 has an extended support surface 32 near the edge of the display module 2, and one side of the display module 2 is snapped into the extended support surface 32.

[0031] See Figure 2 As shown, a button bracket 3 is installed at the lower part of the cavity opening of the back housing 1. The display module 2 is located above the button bracket 3. The connection between the display module 2 and the button bracket 3 is a stepped snap-fit. By setting an extended support surface 32 with a stepped structure near the edge of the button bracket 3 and the back of the display module 2, a snap-fit ​​structure that matches the extended support surface 32 is also formed. This allows the display module 2 and the button bracket 3 to be easily overlapped. Then, by applying glue or adhesive backing, the display module 2 is attached and fixed to the mounting part of the back housing 1 and the extended support surface 32 of the button bracket 3, thus forming a fixed assembly of the display module 2.

[0032] In other embodiments of the display screen structure with button bracket of this utility model, see [link to other embodiments]. Figure 4 As shown, a recessed mounting area 33 is formed on the surface of the button bracket 3 away from the motherboard 4. The button hole 31 is located in the recessed mounting area 33. A button membrane 34 is installed in the recessed mounting area 33. A button membrane 35 is constructed on the button membrane 34 in the area corresponding to the button hole 31.

[0033] In the embodiment, the key film plate 34 is installed by setting the recessed installation area 33 on the key support 3, as shown in Figure 4 As shown in the figure, the key support 3 is located below the display screen module 2, and after the key film plate 34 is pasted on the recessed installation area 33 on the key support 3, the surface of the key support 3 can be flush with the surface of the display screen module 2, and the holes on the key support 3 can be shielded by the key film plate 34, so that the overall external structure is relatively flat and beautiful.

[0034] Further, in some specific examples, the key film 35 is detachably installed on the key film plate 34, the key film 35 is a silica gel film, and a silk screen file is printed on the silica gel film. It can be understood that the key hole is formed on the key film plate 34, the silica gel key is used, and the key film 35 is detachably pasted on the key hole of the key film plate 34. If the distance between the key hole on the key film plate 34 and the key assembly 5 is relatively large, the protrusion amount of the silica gel key can be adjusted to be in contact with the key assembly 5, and the silk screen file on the key film 35 can be changed according to requirements.

[0035] In some embodiments of the display screen structure with a key support of the utility model, the recessed installation area 33 is further provided with a first connecting hole 36, a first connecting piece 6 is arranged in the first connecting hole 36, and a first screw column or a second connecting hole is arranged on the mainboard 4 at a position corresponding to the first connecting hole 36. The first connecting piece 6 passes through the first connecting hole 36 and the first screw column or the second connecting hole in sequence to connect the key support 3 and the mainboard 4.

[0036] It can be understood that the connection structure in the embodiment connects the key support 3 and the mainboard 4 through the first connecting piece 6. Specifically, the key support 3 is uniformly designed with screw holes (the first connecting hole 36) in the recessed installation area 33, the mainboard 4 corresponding to the screw holes is broken (the hole diameter is referred to the corresponding screw model, that is, the first connecting piece 6 can be connected), and the back shell 1 corresponding to the screw holes is designed with a first screw column (the screw column is referred to the corresponding screw model), so that the key support 3, the mainboard 4 and the back shell 1 are integrally connected.

[0037] In other embodiments of the display screen structure with a key support of the utility model, as shown in Figure 4 As shown in the figure, the key assembly 5 includes a key 51 and a key cap 52, the key 51 is connected to the mainboard 4, and the key cap 52 is connected to the key 51 and is arranged in the key hole 31 of the key support 3.

[0038] It needs to be understood that in the traditional display screen structure with keys, some structures will separately design a key plate and fix it on the front cover. The separate key plate design method does not share a PCB with the display screen mainboard, and the design cost is high. In the embodiment, the key assembly 5 does not need to separately design a key plate, the key assembly 5 and the display screen module 2 share a PCB (mainboard 4), and by using the key support 3, the use of the key plate can be cancelled, the key assembly 5 is directly connected to the mainboard, and the product cost is reduced.

[0039] In some embodiments of the display screen structure with a key support of the utility model, the display screen module 2 includes a liquid crystal display screen 21 and a mounting panel 22, the mounting panel 22 is fixedly installed on the mounting portion of the back shell 1, and the liquid crystal display screen 21 is fixedly attached to the mounting panel 22. The mounting panel 22 is a glass panel or an acrylic panel, and the mounting panel 22 is connected to the mounting portion of the back shell 1 and the key support 3 through point gluing or back gluing. The size of the mounting panel 22 is greater than the size of the liquid crystal display screen 21, and after the liquid crystal display screen 21 is attached to the mounting panel 22, the single-side size of the mounting panel 22 is at least 4 mm greater than the edge of the liquid crystal display screen 21.

[0040] It can be understood that the liquid crystal display screen 21 and the mounting panel 22 are attached using a full-attachment process to become a display screen module 2, the size of the display screen module 2 is determined according to project requirements, for example, a 5-inch liquid crystal screen, a 7-inch liquid crystal screen, a 4-inch liquid crystal screen, etc. The shape and size of the mounting panel 22 (glass panel or panel of other materials, such as acrylic) are determined in combination with project requirements, and the size of the mounting panel 22 needs to be greater than the size of the liquid crystal display screen 21, and preferably greater than 4 mm on one side. According to the maximum size requirement of the display screen structure with a key support and the size of the mounting panel 22, the overall length and width of the key support 3 can be determined. According to the product function, the number and spatial layout of the key assembly 5 are determined, for example, single-row 4 keys, double-row 4 keys, etc., and the layout and modeling of the key hole 31 of the key support 3 are confirmed. According to the distance between the mainboard 4 and the surface of the key support 3, the height of the key support 3 (the key support 3 is fixedly supported on the mainboard 4) is finally confirmed. The key support 3 is close to the direction of the mounting panel 22 (glass panel or panel of other materials), and an extended support surface 32 is designed, the height of the extended support surface 32 is consistent with the height of the back shell 1 supporting the mounting panel 22, and is used for fixing (point gluing or back gluing) the mounting panel 22 of the display screen module 2 and the back shell 1 and the key support 3.

[0041] In some specific examples of the display screen structure with the key support of the utility model, the third mounting hole and the pin 41 are formed on the mainboard 4, the pin 41 is arranged through the bottom wall of the back shell 1, the second connecting piece 7 is arranged through the third mounting hole, and the second screw column or the fourth connecting hole is arranged at the position corresponding to the third mounting hole of the bottom wall of the back shell 1. The second connecting piece 7 is arranged through the third mounting hole and the second screw column or the fourth connecting hole of the bottom wall of the back shell 1 in sequence to connect the mainboard 4 and the back shell 1.

[0042] Referring to Figure 4 As shown in the figure, the pin 41 of the mainboard 4 is arranged through the bottom wall of the back shell 1 to form an external connecting port outside the bottom wall of the back shell 1. The mainboard 4 is arranged through the third mounting hole of the mainboard 4 and the second screw column or the fourth connecting hole of the bottom wall of the back shell 1 in sequence by the second connecting piece 7 (self-tapping screw) to be fixed on the back shell 1. Meanwhile, the key support 3 is arranged above the mainboard 4, the key assembly 5 is connected to the mainboard 4 and arranged through the key support 3, the mainboard 4 and the back shell 1 are fixed by the second connecting piece 7 (self-tapping screw), the positioning hole and the positioning column are designed at the support surface of the key support 3 and the mainboard 4 to facilitate the positioning of the key support 3 before screwing, the first connecting hole 36 (screw hole) is uniformly designed near the key hole 31 of the key support 3, the mainboard 4 corresponding to the screw hole is broken (the hole diameter is referred to the corresponding screw model), the screw column is designed on the back shell 1 corresponding to the screw hole, the key support 3, the mainboard 4 and the back shell 1 are fixed as a whole by the first connecting piece 6 and the second connecting piece 7, the display screen module 2 is installed at the opening of the accommodating cavity of the back shell 1, and the display screen module 2 is stacked with the outer extension support surface 32 of the key support 3. The display screen module 2 is fixed on the outer extension support surface 32 of the back shell 1 and the key support 3 by the point gluing or back gluing process, and the whole connection and installation of the display screen structure with the key support of the utility model are completed.

[0043] It can be understood that the whole connection and installation of the display screen structure with the key support of the embodiment cancels the front cover structure of the traditional display screen structure, only retains the back shell 1, increases the key support 3, the key support 3 has simple structure and small size, and the mold opening cost is much lower than that of the front cover structure; and the key plate does not need to be designed separately, the key assembly 5 can be directly welded on the mainboard 4 of the display screen in the embodiment, the key assembly 5 and the display screen share one PCB mainboard, and the cost is reduced. When the number of keys needs to be changed in the later stage of the display screen structure, only the key support 3 with low cost needs to be designed separately, and the upgrading and development cost is saved.

[0044] The utility model discloses another aspect's embodiment still provides a kind of working machine, the working machine of this embodiment includes the display screen structure of any one embodiment or example in above with button support, it can be understood that, the working machine in this embodiment can be crane, pile machine, mixer, excavator, loader etc., install the display screen structure of above with button support in the working machine of this embodiment, because the display screen structure of above with button support can be realized by the replacement of button support Low-costly increase or reduce display screen structure button, so that the working machine provided in this embodiment also has the corresponding function of the display screen structure of above with button support.

[0045] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, rather than limit them; Although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A display screen structure with key support, characterized by, The application relates to a back shell (1) comprising a bottom wall and a side wall, which constitute a containing cavity, and an opening of the containing cavity forms a mounting portion; a display screen module (2) is fixedly mounted on the mounting portion of the back shell (1); a key support (3) is detachably mounted on the mounting portion of the back shell (1) and located on one side of the display screen module (2), and a key hole (31) is formed on the key support (3); a mainboard (4) is fixed in the containing cavity of the back shell (1); and a key assembly (5) is connected to the mainboard (4) and passes through the key hole (31) of the key support (3). The key support (3) is provided with an extension supporting surface (32) close to the edge of the display screen module (2), and one side of the display screen module (2) is clamped on the extension supporting surface (32). The key support (3) is provided with a recessed mounting area (33) away from the surface of the mainboard (4), the key hole (31) is arranged on the recessed mounting area (33), a key membrane plate (34) is arranged on the recessed mounting area (33), and a key film (35) is arranged on the key membrane plate (34) corresponding to the key hole (31). The key film (35) is detachably arranged on the key membrane plate (34), and the key film (35) is a silica gel film. The recessed mounting area (33) is further provided with a first connecting hole (36), a first connecting piece (6) passes through the first connecting hole (36), and a first screw column or a second connecting hole is arranged on the mainboard (4) corresponding to the first connecting hole (36), so that the first connecting piece (6) sequentially passes through the first connecting hole (36) and the first screw column or the second connecting hole, so as to connect the key support (3) and the mainboard (4). The key assembly (5) comprises a key (51) and a key cap (52), the key (51) is touch-connected on the mainboard (4), the key cap (52) is connected to the key (51), and the key cap (52) passes through the key hole (31) on the key support (3).

2. The display screen structure with a key holder according to claim 1, characterized in that, The display screen module (2) comprises a liquid crystal display screen (21) and a mounting panel (22), the mounting panel (22) is fixedly mounted on the mounting portion of the back shell (1), and the liquid crystal display screen (21) is fixedly attached to the mounting panel (22).

3. The display screen structure with keypads of claim 2, wherein, The mounting panel (22) is larger in size than the liquid crystal display screen (21), and after the liquid crystal display screen (21) is attached to the mounting panel (22), the mounting panel (22) is at least 4 mm larger in single-edge size than the liquid crystal display screen (21).

4. The display screen structure with keypads of claim 3, wherein, ​ 5. The display screen structure with keypads of claim 3, wherein, ​ 6. The display screen structure with a key pad bracket according to any one of claims 1 to 5, characterized in that, ​ 7. The display screen structure with a key pad bracket according to any one of claims 1 to 5, characterized in that, ​ 8. The display screen structure with keypads of claim 7, wherein, ​ 9. The display screen structure with keypads according to any one of claims 1 to 5, characterized in that, The third mounting hole and a pin (41) are formed on the main board (4), the pin (41) is arranged through the bottom wall of the back shell (1), a second connecting piece (7) is arranged through the third mounting hole, a second screw column or a fourth connecting hole is arranged on the bottom wall of the back shell (1) corresponding to the position of the third mounting hole, and the second connecting piece (7) sequentially passes through the third mounting hole and the second screw column or the fourth connecting hole, so that the main board (4) is connected with the back shell (1).

10. A work machine characterized by, The display screen structure comprising the key bracket according to any one of claims 1 to 9.

Images