CN110696531A - Infrared touch screen frame structure, infrared touch screen and wisdom blackboard - Google Patents

Abstract

The invention discloses a frame structure of an infrared touch screen, an infrared touch screen and a smart blackboard, which belong to the technical field of teaching equipment. In the frame structure of the infrared touch screen of the present invention, the upper frame and the side frame are connected by the upper corner code, and the lower frame and the side frame are connected by the lower corner code; the upper frame, the lower frame and the side frame are provided with light bar grooves , filter strip groove and glass plate groove, the filter strip groove is located outside the light strip groove. When overhauling or replacing light bars and filter bars, it is only necessary to remove the corresponding frame and the corner codes on both sides of the frame, and then directly pull out the light bars and filter bars in the frame, which greatly improves the maintenance and replacement. s efficiency. In the infrared touch screen and the smart blackboard of the present invention, there is no seam between the infrared touch screen and the writing board, and the glass plate surface of the infrared touch screen and the writing board surface are relatively flat, which is convenient for use.

Description

An infrared touch screen frame structure, an infrared touch screen and a smart blackboard

technical field

The present invention relates to the technical field of infrared touch display devices, and more particularly, to an infrared touch screen frame structure, an infrared touch screen and a smart blackboard.

Background technique

With the increasing popularity and importance of electronic intelligent products, the education industry is also undergoing in-depth technological changes. Under the influence of the trend of intelligent teaching tools, smart blackboards have been popularized in most teaching environments and gradually emerged. In the process of design, production and use of the smart blackboard, a large-size touch display device is generally used as the main screen, and two writing boards are set as secondary screens on both sides of the main screen. Large-sized touch display devices generally include capacitive touch screens and infrared touch screens.

Among them, when assembling a separate screen, after the frame is installed, the glass is often fixed on the profile surface of the frame by gluing, which makes the glass installation process prone to inaccurate glass bonding and positioning. , it is inconvenient to install, and it will lead to the failure of seamless splicing when the main screen and the left and right sub-screens are spliced, which affects the use of the smart blackboard. Therefore, for the assembly of the capacitive touch screen, a plurality of grooves for fixing the glass plate, the display plate and the diaphragm can be opened on the frame, so that the fit between the display plate and the frame is better, which helps to improve the processing Efficiency, such as the invention and creation of a Chinese patent document entitled an intelligent blackboard frame structure and intelligent blackboard (application number 201721479694).

However, it is worth pointing out that, unlike the capacitive touch screen, the infrared module used to realize the touch operation is easily damaged during the use of the infrared touch screen, and the light bar of the infrared module needs to be regularly repaired and repaired. replace. Therefore, the method of fixing the glass frame by gluing leads to the need to destroy the gluing structure during maintenance and disassembly, and then repair and replace the light bar, which brings great inconvenience to the maintenance personnel; It is very inefficient to dismantle the multi-layer components in sequence, and it is difficult to operate and easily lead to the scrapping of the entire glass panel.

SUMMARY OF THE INVENTION

1. The technical problem to be solved by the invention

The purpose of the present invention is to overcome the shortcoming that the light bar of the infrared touch screen of the smart blackboard is not easy to replace in the prior art, and to provide a frame structure of the infrared touch screen. The grooves of the light bar and the filter bar only need to remove the corner code when repairing or replacing the light bar or the filter bar, and the light bar or the filter bar can be pulled out, which has high efficiency and convenient operation.

Another object of the present invention is to provide an infrared touch screen and a smart blackboard including the infrared touch screen, wherein the light bar and the filter bar are easy to replace, and the damage to the glass plate can be avoided during the replacement process.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the invention is:

An infrared touch screen frame structure of the present invention includes a lower frame, an upper frame and two side frames arranged between the lower frame and the upper frame; the side frame and the lower frame are detachably connected by a lower corner code, so the The side frame and the upper frame are detachably connected through the upper corner code; the lower frame, the upper frame and the side frame are provided with a light bar slot for fixing the light bar, a filter bar slot for fixing the filter bar and The glass plate groove for fixing the glass plate, the filter strip groove is located outside the light strip groove.

Further, the light bar slot and the filter bar slot are respectively arranged on the vertical part and the horizontal part of a substantially L-shaped slot body.

Further, the filter strip groove is located at the notch of the groove body.

Further, two opposite groove walls of the filter strip grooves are provided with mutually displaced installation grooves, the side edges of the filter strips are clamped and embedded in the installation grooves, and the filter strips are arranged obliquely.

Further, two opposite groove walls of the light bar groove are provided with limiting grooves, and the limiting grooves are used to engage the lugs of the light bar.

Further, at least one of the two opposite groove walls of the light bar groove is provided with an escape groove, and a disassembly gap is formed between the groove bottom of the escape groove and the light bar.

Further, the light bar fixed in the light bar groove of the lower frame is an infrared emitting light bar, and the light bar fixed in the light bar groove of the upper frame is an infrared absorption light bar.

Further, the upper frame and the side frame are provided with connecting grooves, and the upper corner code and the lower corner code are provided with connecting pieces that are detachably connected to the connecting grooves;

A support groove is formed on the lower frame, and a support piece detachably connected to the support groove is provided on the lower corner code.

An infrared touch screen of the present invention includes the above-mentioned frame structure, and a light bar, a filter bar and a glass plate are installed on the frame structure.

A smart blackboard of the present invention includes the above-mentioned infrared touch screen, and at least one of the two sides of the infrared touch screen is provided with a writing board.

3. Beneficial effects

Adopting the technical scheme provided by the present invention, compared with the prior art, has the following beneficial effects:

(1) The frame structure of the infrared touch screen of the present invention, the frame includes an upper frame, a lower frame and a side frame, the upper frame and the side frame are connected by an upper corner code, and the lower frame and the side frame are connected by a lower corner code; The upper frame, the lower frame and the side frame are provided with a light bar slot, a filter bar slot and a glass plate slot, and the filter bar slot is located outside the light bar slot. When the light bar and filter bar on the frame need to be repaired or replaced, it is only necessary to remove the corresponding frame and the corner codes on both sides of the frame, and then directly pull out the light bar and filter bar in the frame. For the maintenance and replacement of light strips and filter strips, the efficiency of maintenance and replacement is greatly improved.

(2) In the present invention, the upper frame and the side frame are provided with connecting grooves, and the upper corner code and the lower corner code are provided with connecting pieces that cooperate with the connecting grooves. A detachable connection between the frame and the upper corner code and the lower angle code; the lower frame is provided with a support groove, and the lower corner code is provided with a support piece matched with the support groove, which is realized by the bolt connection between the support piece and the support groove The detachable connection between the lower frame and the lower corner code facilitates the removal and installation of the corner code and the frame when the light bar and the filter bar are replaced, and further improves the efficiency of maintenance and replacement.

(3) In the infrared touch screen of the present invention, the sides of the glass plate of the infrared touch screen are respectively installed in the glass plate grooves of the upper frame, the side frame and the lower frame, without using glue or adhesive to fix the glass plate Fixed; at the same time, the glass plate is fixed by the glass plate grooves of the upper frame, side frame and lower frame, and the glass plate is kept flat as a whole, and it will not be deformed under the action of external force, and there will not be four corners deformed and bulged, which will cause the glass and the edge. There is a problem of large gaps in the frame, which improves the quality of the product.

(4) In the smart blackboard of the present invention, one side of the infrared touch screen is provided with a writing board, or both sides are provided with a writing board. After the infrared touch screen and the writing board are assembled, there is a gap between the infrared touch screen and the writing board. There will be no seams, and the surface of the glass plate of the infrared touch screen and the surface of the writing board are relatively flat, which is convenient for the use of the smart blackboard.

Description of drawings

1 is a schematic structural diagram of a frame structure of an infrared touch screen of the present invention;

Fig. 2 is the connection mode schematic diagram of lower corner code and lower frame and side frame in the present invention;

Fig. 3 is the connection mode schematic diagram of upper corner code and upper frame and side frame in the present invention;

4 is a schematic structural diagram of a lower frame in the present invention;

5 is a schematic structural diagram of an upper frame in the present invention;

6 is a schematic structural diagram of a side frame in the present invention;

Fig. 7 is the structural representation of the lower corner code in the present invention;

Fig. 8 is the structural representation of upper corner code in the present invention;

9 is a schematic structural diagram of an infrared touch screen of the present invention;

FIG. 10 is a schematic structural diagram of the smart blackboard of the present invention.

Description of reference signs: 100, infrared touch screen; 101, light bar; 102, filter bar; 103, glass plate; 110, lower frame; 111, lower frame light bar slot; 112, lower frame filter bar slot ; 113, glass plate groove of lower frame; 114, first support groove of lower frame; 115, second support groove of lower frame; 116, third support groove of lower frame; 120, upper frame; 121, light bar groove of upper frame; 122 123, the upper frame glass plate slot; 124, the first connection slot of the upper frame; 125, the second connection slot of the upper frame; 126, the third connection slot of the upper frame; 127, the fourth connection of the upper frame slot; 130, side frame; 131, side frame light bar slot; 132, side frame filter light bar; 133, side frame glass plate slot; 134, side frame first connection slot; 135, side frame second connection slot; 136, the third connection slot of the side frame; 137, the fourth connection slot of the side frame; 140, the lower corner code; 141, the first connection part of the lower corner code; 142, the second connection part of the lower corner code; 143, the third connection part of the lower corner code; 144, the fourth connector of the lower corner code; 145, the second support of the lower corner code; 146, the third support of the lower corner code; 147, the first support of the lower corner code; 150, the upper angle code; 151, the first connection of the upper angle code 152, the second connecting piece of the upper corner code; 153, the third connecting piece of the upper corner code; 154, the fourth connecting piece of the upper corner code; 200, the writing board.

Detailed ways

In order to further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, Without technical substantive significance, any structural modification, proportional relationship change or size adjustment should still fall within the technology disclosed in the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. The content must be within the scope of coverage. At the same time, terms such as "up", "down", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and clarity, and are not used to limit the scope of implementation. The change or adjustment of the relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

A frame structure of an infrared touch screen in this embodiment, referring to FIG. 1 , includes a lower frame 110 , an upper frame 120 , which are detachably connected through corner codes, and two frames between the upper frame 120 and the lower frame 110 . a side frame 130 . Specifically, referring to FIG. 2 , the connection between the lower frame 110 and the side frame 130 is realized by the lower corner code 140, which may be a detachable connection realized by bolt connection; referring to FIG. 3, the upper frame 120 and the side frame 130 are connected by the upper corner The code 150 realizes the connection, which may be a detachable connection realized by bolting.

When the light bars or filter bars in the frame structure of this embodiment need to be repaired or replaced, it is only necessary to remove the corresponding frame and the corner codes on both sides of the frame, and then directly pull out the light bars or filter bars in the frame. That's it. For example, when the light bar or filter bar in the lower frame 110 fails and needs to be repaired or replaced, only the side frame and the lower corner code 140 and the upper corner code 150 on both sides of the frame can be removed. One side of the filter strip has been exposed, and the light strip or filter strip can be removed and replaced by tools or direct manual operation. The operation is convenient, and other components on the infrared touch screen 100 will not be damaged during the maintenance or replacement process. cause damage.

2 and 3 , the lower frame 110 , the upper frame 120 and the side frame 130 are all provided with a light bar slot, a filter bar slot and a glass plate slot. Among them, the glass plate slot is used to install the fixed glass plate, the light slot is used to install the fixed light bar, and the filter strip slot is used to install the fixed filter strip slot. Among them, the filter strip slot is located outside the light slot, so that the light emitted by the light strip can only emit infrared light of a specific wavelength after being filtered by the filter strip, or only the infrared light of a specific wavelength can be emitted from the outside light after being filtered by the filter strip. Able to shoot on the light bar.

Specifically, referring to FIG. 2 , the lower frame 110 of this embodiment is provided with a lower frame light bar groove 111 , a lower frame filter bar groove 112 , and a lower frame glass plate groove 113 , and a side frame light bar groove is formed on the side frame 130 131. Side frame filter light bar 132, side frame glass plate slot 133; Referring to FIG. 3, the upper frame 120 of this embodiment is provided with an upper frame light bar slot 121, an upper frame filter light bar 122, and an upper frame glass plate Slot 123.

It should be noted that, in order to facilitate the processing and assembly of the frame structure, except that the upper frame 120 or the side frame 130 is provided with a mounting opening or a button opening at the required position, the structure of the rest of the structure can be basically the same, for example, it can be made of the same structure. Similarly, the lower frame 110 is basically the same as the structure of the upper frame 120 and the side frame 130 except for the change of the support structure made to adapt to the structure of the infrared touch screen itself, at least the lower frame 110 and the upper frame The structures of the light bar slot, the filter bar slot and the glass plate slot of the 120 and the side frame 130 may be basically the same.

For example, as an embodiment, the light bar groove and the filter bar groove can be arranged on the vertical part and the horizontal part of a substantially L-shaped groove body, that is, a substantially L-shaped groove body is opened on the frame. , the groove body has a horizontal part parallel to the glass plate 103, and a vertical part perpendicular to the glass plate 103, the light bar groove is arranged on the vertical part, and the filter bar is arranged on the horizontal part. After installation, the light bar is clamped in the light bar slot, the filter bar is clamped in the filter bar slot, and the light-emitting part or the absorption part of the light bar is arranged toward the filter bar.

Referring to FIGS. 4 to 6 , in the light bar groove of this embodiment, limiting grooves can be provided on two opposite groove walls. When installing the light bar 101 , the two lugs of the light bar 101 are respectively inserted into the light bar groove. Limiting grooves are opened relative to the two groove walls to realize the installation and fixation of the light bar. This structure can also prevent the light bar 101 from shaking within the frame during the use of the infrared touch screen, thereby improving the overall touch stability.

In order to facilitate the installation and removal of the light bar, an avoidance groove can be provided on the groove wall of the light bar groove, and the avoidance groove can be opened in parallel with the limit groove, so that the avoidance groove and the avoidance groove together form a protrusion on the groove wall of the light bar groove. From now on, when the lug of the light bar 101 is stuck in the limiting groove, a part of one side of the light bar 101 body rests on the protrusion, and the other part of one side surface of the light bar 101 body is suspended in the avoidance groove. When the light bar 101 in the frame needs to be replaced, the light bar 101 can be taken out through the escape groove.

Referring to FIGS. 4 to 6 , the filter strip groove of this embodiment can be arranged at the notch of the L-shaped groove body, so that the purity of the infrared light of a specific wavelength emitted by the light strip can be improved, or the absorption part of the light strip can be improved. The purity of the infrared light of a specific wavelength on the device improves the accuracy of infrared touch.

Specifically, two opposite groove walls of the filter strip groove may be provided with installation grooves respectively, and the installation grooves are used to install the sides of the filter strip, so that the filter strip can be stably installed and fixed in the filter strip groove. In order to improve the filtering effect of the filter strip, the filter strip can be set obliquely. Specifically, the installation grooves on the two groove walls of the filter strip groove can be staggered, so as to realize the oblique setting of the filter strip.

The light bar 101 in this embodiment may specifically be an infrared absorption light bar or an infrared emission light bar. When the light bar in one frame of the frame structure is an infrared emitting light bar, there must be an infrared emitting light bar in the frame opposite to the frame. For example, when the lower frame 110 of the frame structure is provided with an infrared emitting light bar, the upper frame 120 must be provided with an infrared absorption light bar; when the frame structure is located in the left side frame, the infrared emission light bar is provided , the infrared absorbing light bar must be set in the side frame on the right side, so that a two-dimensional infrared light array can be formed on the outside of the glass plate 103 of the infrared touch screen, that is, the touch control side of the glass plate 103, and the completion of Infrared touch operation.

The filter strip 102 in this embodiment may be a filter strip 102 commonly used in related fields, and its function is to filter light, so that only infrared light that meets a specific wavelength range can pass through the filter strip 102. Therefore, this implementation The specific structure of the method is not repeated here.

7 , the overall shape of the lower corner code 140 of this embodiment matches the lower frame 110 and the side frame 130 . The side of the lower corner code 140 facing the side frame 130 is provided with a plurality of connecting pieces. There may be screw holes on the parts. A connecting groove is provided on the side frame 130 at a position corresponding to the connecting piece, and a screw hole is also formed on the side frame 130 at a position corresponding to the screw hole of the connecting piece. When the side frame 130 is connected with the lower corner code 140 , the connecting piece is inserted into the connecting groove, and then bolts are passed through the connecting piece and the screw holes on the side frame 130 to realize the connection.

Specifically, the side of the lower corner 140 facing the side frame 130 may be provided with a lower corner first connector 141 , a lower corner second connector 142 , a lower corner third connector 143 and a lower corner fourth connector 144 . 130 is correspondingly provided with a first connecting groove 134 of the side frame, a second connecting groove 135 of the side frame, a third connecting groove 136 of the side frame and a fourth connecting groove 137 of the side frame. The first connector 141 of the lower corner, the third connector 143 of the lower corner and the fourth connector 144 of the lower corner are arranged in parallel, and the second connector 142 of the lower corner is perpendicular to the fourth connector 144 of the lower corner, so as to share the The shear force in two directions increases the strength of the connection between the corner code and the frame, and improves the overall stability of the frame structure.

A plurality of support members are provided on the side of the lower corner code 140 facing the lower frame 110 , and support grooves are provided on the lower frame 110 at positions corresponding to the support members. Specifically, the side of the lower corner 140 facing the lower frame 110 is provided with a lower corner first supporting member 147 , a lower corner second supporting member 145 and a lower corner third supporting member 146 , and the lower frame 110 is correspondingly provided with a lower frame third supporting member 147 . A support groove 114 , a second support groove 115 of the lower frame and a third support groove 116 of the lower frame. Among them, the second support 145 of the lower corner and the third support 146 of the lower corner are arranged in parallel, and the first support 147 of the lower corner and the third support 146 of the lower corner are arranged vertically. This structure can also play a role in sharing the corners between the two The effect of the shear force in the direction, thereby improving the overall stability of the frame structure.

8 , the overall shape of the upper corner 150 of this embodiment fits the upper frame 120 and the side frame 130 . Since the overall structures of the upper frame 120 and the side frame 130 are basically the same, the upper corner code 150 is basically a symmetrical structure, that is, the structure of the upper corner code 150 facing the side of the upper frame 120 and the structure of the upper corner code 150 facing the side frame 130 The structure is basically the same.

Specifically, the side of the upper corner bracket 150 facing the upper frame 120 and the side frame 130 is provided with a first upper corner bracket connector 151 , an upper corner bracket second connector 152 , an upper corner bracket third connector 153 and an upper corner bracket. The fourth connecting piece 154 is formed. The upper frame 120 is correspondingly provided with a first connecting groove 124 of the upper frame, a second connecting groove 125 of the upper frame, a third connecting groove 126 of the upper frame, and a fourth connecting groove 127 of the upper frame. The side frame 130 A first connecting groove 134 of the side frame, a second connecting groove 135 of the side frame, a third connecting groove 136 of the side frame and a fourth connecting groove 137 of the side frame are correspondingly provided on the upper frame. The first connecting piece 151 of the upper corner, the third connecting piece 153 of the upper corner and the fourth connecting piece 154 of the upper corner are arranged in parallel, and the second connecting piece 152 of the upper corner and the fourth connecting piece 154 of the upper corner are vertically arranged.

This embodiment also provides an infrared touch screen 100. Referring to FIG. 9, the infrared touch screen 100 includes the above-mentioned frame structure, and lights are provided in the upper frame 120, the side frame 130 and the lower frame 110 of the frame structure. bar 101 and filter bar 102.

In addition, the sides of the glass plate 103 of the infrared touch screen 100 are respectively installed in the glass plate grooves of the upper frame 120, the side frame 130 and the lower frame 110, without using glue or adhesive to fix the glass plates; The plate 103 is fixed by the glass plate grooves of the upper frame 120, the side frame 130 and the lower frame 110, the glass plate is kept flat as a whole, it will not be deformed under the action of external force, and there will be no four corners deforming and bulging, which will cause the glass and the edge. There is a problem of large gaps in the frame, which improves the quality of the product.

Referring to FIG. 10 , the present embodiment also provides a smart blackboard, which includes an infrared touch screen 100 , a writing board may be provided on one side of the infrared touch screen 100 , and the writing board 200 is specifically spliced on the infrared touch screen 100 ; the writing pad 200 may also be provided on the left and right sides of the infrared touch screen 100 , and the writing pad 200 and the infrared touch screen 100 are spliced. After splicing, there will be no seam between the infrared touch screen and the writing board, and the glass plate surface of the infrared touch screen and the writing board surface are relatively flat, which is convenient for the use of the smart blackboard.

The present invention and its embodiments have been described above schematically, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it, without departing from the purpose of the present invention, any structural modes and embodiments similar to this technical solution are designed without creativity, which shall belong to the protection scope of the present invention. .

Claims (10)

1. A frame structure of an infrared touch screen, comprising a lower frame, an upper frame and two side frames arranged between the lower frame and the upper frame; it is characterized in that: between the side frame and the lower frame, a lower corner code is detachable Connection, the side frame and the upper frame are detachably connected by the upper corner code; the lower frame, the upper frame and the side frame are all provided with a light bar slot for fixing the light bar, and a filter for fixing the filter bar. A light bar groove and a glass plate groove for fixing the glass plate, and the light filter bar groove is located outside the light bar groove. 2 . The frame structure of an infrared touch screen according to claim 1 , wherein the light bar slot and the filter bar slot are respectively arranged on the vertical part and the horizontal part of a substantially L-shaped slot body. 3 . . 3 . The frame structure of an infrared touch screen according to claim 2 , wherein the filter strip groove is located at the notch of the groove body. 4 . 4 . The frame structure of an infrared touch screen according to claim 3 , wherein two opposite groove walls of the filter strip groove are provided with mutually displaced installation grooves, and the side edges of the filter strip The card is embedded in the installation groove, and the filter strip is arranged obliquely. 5 . The frame structure of an infrared touch screen according to claim 1 , wherein a limit slot is defined on two opposite groove walls of the light bar slot, and the limit slot is used to insert the light. 6 . bar lugs. 6 . The frame structure of an infrared touch screen according to claim 5 , wherein at least one of the two opposite groove walls of the light bar groove is provided with an escape groove, and the groove of the escape groove A disassembly gap is formed between the bottom and the light bar. 7 . The frame structure of an infrared touch screen according to claim 1 , wherein the light bar fixed in the light bar groove of the lower frame is an infrared emitting light bar, and the upper The light bar fixed in the light bar groove of the frame is an infrared absorption light bar. 8 . The frame structure of an infrared touch screen according to claim 1 , wherein the upper frame and the side frame are provided with connecting grooves, and the upper and lower corner codes are provided on the upper and lower corner codes. A connecting piece that is detachably connected to the connecting groove is provided; A support groove is formed on the lower frame, and a support piece detachably connected to the support groove is provided on the lower corner code. 9 . An infrared touch screen, characterized in that it comprises the frame structure according to any one of claims 1 to 8 , on which a light bar, a filter bar and a glass plate are installed. 10 . 10 . A smart blackboard, characterized in that it comprises the infrared touch screen of claim 9 , and at least one of two sides of the infrared touch screen is provided with a writing board.

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