Splicing type capacitive screen

Abstract

The utility model relates to a capacitive screen, in particular to a spliced capacitive screen which comprises a capacitive screen, a connecting rod, a back plate, a limiting ring, a winding shaft, a reset spring, a clamping block and a spline shaft, a sliding rail is arranged on the back face of the capacitive screen, the capacitive screen is fixed to the connecting rod in a clamping mode through the sliding rail, and the connecting rod is fixedly connected with the back plate. The limiting ring is fixedly connected to one side of the connecting rod, the side of the connecting rod is rotationally connected with a winding shaft, the clamping blocks are oppositely arranged and slidably connected to the side face of the connecting rod in a penetrating mode, a reset spring is connected between the clamping blocks, the pull rope is wound around the winding shaft, the end of the pull rope is connected with the clamping blocks, and the spline shaft rotates in the limiting ring in a limited mode and is slidably connected to the winding shaft through a spline. The connecting rods and the back plate are arranged on the back faces of the capacitive screens, and after the capacitive screens are transversely arranged, the positions of the adjacent capacitive screens can be fixed and spliced in the mode that the clamping blocks are embedded into the connecting rods.

Description

Technical Field

[0001] The utility model relates to a capacitive screen, in particular to a spliced ​​capacitive screen. Background Art

[0002] As an indispensable part of modern electronic devices, capacitive screens bring users an unprecedented convenient experience with their unique touch mode. The working principle of capacitive screens is based on capacitive coupling. When the user's finger or a special stylus approaches or touches the screen, it changes the capacitance distribution on the screen, which is then sensed by the sensor circuit inside the screen and converted into an electronic signal. This technology makes the capacitive screen extremely sensitive and accurate, supports multi-touch, and has a fast response speed, making it the most common touch solution in mobile devices such as smartphones and tablets.

[0003] However, despite the excellent performance of capacitive screens in many aspects, the limited area of ​​a single screen has become a key factor restricting its further development. Due to factors such as material cost, production process and market demand, the manufacturing of capacitive screens is often not infinitely large. In some occasions that require large-area touch, such as large conference rooms and exhibitions, a single capacitive screen often cannot meet the demand. In addition, even if a larger area capacitive screen can be manufactured, its cost will increase significantly, which is not conducive to market promotion and application.

[0004] The limited area of ​​a single capacitive screen has brought about a series of defects. First, it limits the application scope of capacitive screens in specific occasions, making it impossible to effectively meet some occasions that require large-area touch. Secondly, since it is impossible to directly manufacture large-area capacitive screens, users often need to splice multiple small-area capacitive screens to achieve the required area, which not only increases the complexity of installation and maintenance, but may also affect the overall aesthetics and user experience due to problems such as splicing gaps. Finally, the cost of capacitive screens increases significantly with the increase in area, making the popularization and promotion of large-area capacitive screens face certain difficulties.

[0005] Therefore, it is particularly necessary to design a device that can flexibly adjust the area of ​​the capacitive screen through splicing. Utility Model Content

[0006] In order to overcome the shortcomings of the existing capacitive screens, such as limited area and poor use effect, the technical problem of the utility model is to provide a spliced ​​capacitive screen.

[0007] The technical implementation scheme of the utility model is: a spliced ​​capacitive screen, including a capacitive screen, a connecting rod and a back plate, a slide rail is arranged on the back of the capacitive screen, the capacitive screen is fixed to the connecting rod by means of the slide rail clamping connection, the connecting rod is fixedly connected to the back plate, and also includes a limit ring, a winding shaft, a reset spring, a clamping block and a spline shaft, the limit ring is fixedly connected to one side of the connecting rod, and the side of the connecting rod is rotatably connected to the winding shaft, the clamping blocks are arranged oppositely and slidably connected to the side of the connecting rod, a reset spring is connected between the clamping blocks, a pull rope is wound around the winding shaft and the end is connected to the clamping block, the spline shaft is limited to rotate in the limit ring and is slidably connected to the winding shaft through the spline, the capacitive screen is horizontally arranged so that the connecting rods are connected end to end, the clamping block can fix the adjacent connecting rods by means of clamping connection, the winding shaft can be driven to rotate by rotating the spline shaft, and the winding shaft is pulled by the pull rope to move the clamping block towards each other to achieve unlocking.

[0008] More preferably, it further comprises a knob, which is fixedly connected to the upper end of the spline shaft and has an anti-slip groove around the knob.

[0009] More preferably, it further comprises a ratchet ring and ratchet teeth, the inner ring of the limiting ring is arranged as the ratchet ring, the middle part of the spline shaft is fixedly connected with the ratchet teeth, and the ratchet ring is unidirectionally meshed with the ratchet teeth.

[0010] More preferably, a torsion spring is further included, and the torsion spring is connected between the spline shaft and the connecting rod.

[0011] More preferably, a handle is further included. The handle is arranged in the middle of the back plate, and an anti-slip pad is arranged on the outside of the handle.

[0012] More preferably, a fixing seat is further included, which is arranged at the end of the back plate, and bolt holes are equidistantly provided on the fixing seat, and the back plate can be fixed through the bolt holes.

[0013] More preferably, it further comprises a limit track, and the limit track is arranged on the back of the capacitive screen.

[0014] The utility model has the following advantages: a connecting rod and a back plate are provided on the back of the capacitive screen, and after the capacitive screens are arranged horizontally, the positions of adjacent capacitive screens can be fixed and spliced ​​by embedding the card blocks into the connecting rods, and rotating the spline shaft can drive the winding shaft to rotate, and the winding shaft pulls the card blocks to move in opposite directions through the pull rope, so that the card blocks and adjacent connecting rods can be unlocked. The device has a simple structure and is easy to operate, effectively solves the problem of limited area of ​​a traditional single capacitive screen, can splice and fix multiple capacitive screens, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the capacitive screen after splicing of the utility model.

[0016] Figure 2It is a schematic diagram of the three-dimensional structure of a single capacitive screen of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the limit ring, winding shaft, clamping block and spline shaft of the utility model.

[0018] Figure 4 This is a three-dimensional structural separation diagram of the knob, ratchet ring and ratchet teeth of the utility model.

[0019] Among them: 1-capacitive screen, 2-connecting rod, 3-back plate, 4-limiting ring, 5-winding reel, 501-reset spring, 6-pull rope, 7-block, 8-spline shaft, 9-knob, 10-ratchet ring, 11-ratchet teeth, 12-torsion spring, 13-handle, 14-fixed seat, 15-limiting rail. DETAILED DESCRIPTION

[0020] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0021] Embodiment: A spliced ​​capacitive screen, such as Figure 1-Figure 4 As shown, it includes a capacitive screen 1, a connecting rod 2 and a back plate 3. A slide rail is arranged on the back of the capacitive screen 1. The capacitive screen 1 is fixed to the connecting rod 2 by means of the slide rail clamping. The connecting rod 2 is fixedly connected to the back plate 3. It also includes a limit ring 4, a winding shaft 5, a reset spring 501, a clamping block 7 and a spline shaft 8. The limit ring 4 is fixedly connected to one side of the connecting rod 2, and the side of the connecting rod 2 is rotatably connected to the winding shaft 5. The clamping blocks 7 are arranged oppositely and slidably penetrate the side of the connecting rod 2. The reset spring 5 is connected between the clamping blocks 7. 01, the pull rope 6 is wound around the winding shaft 5 and the end is connected to the block 7, the spline shaft 8 is limited to rotate in the limit ring 4 and is connected to the winding shaft 5 through the spline sliding, the knob 9 is fixed to the upper end of the spline shaft 8, and the knob 9 is provided with an anti-slip groove. The capacitive screen 1 is arranged horizontally so that the connecting rods 2 are connected end to end. The block 7 can fix the adjacent connecting rods 2 by clamping. The winding shaft 5 can be driven to rotate by turning the knob 9. The winding shaft 5 pulls the block 7 to move in opposite directions through the pull rope 6 to achieve unlocking.

[0022] like Figure 3 and Figure 4 As shown, it also includes a ratchet ring 10 and ratchet teeth 11. The inner ring of the limiting ring 4 is set as the ratchet ring 10, and the ratchet teeth 11 are fixedly connected to the middle of the spline shaft 8. The ratchet ring 10 and the ratchet teeth 11 are unidirectionally meshed.

[0023] like Figure 4 As shown, a torsion spring 12 is also included, and the torsion spring 12 is connected between the spline shaft 8 and the connecting rod 2.

[0024] like Figure 1 and Figure 2 As shown, a handle 13 is also included. The handle 13 is arranged in the middle of the back plate 3, and an anti-slip pad is arranged on the outside of the handle 13.

[0025] like Figure 1 and Figure 2 As shown, a fixing seat 14 is also included. The fixing seat 14 is arranged at the end of the back plate 3. Bolt holes are equidistantly opened on the fixing seat 14, and the back plate 3 can be fixed through the bolt holes.

[0026] like Figure 1 As shown, the capacitive screen 1 further includes a limit track 15 , and the limit track 15 is arranged on the back of the capacitive screen 1 .

[0027] The working principle of the embodiment of the utility model is as follows: the capacitive screens 1 are placed horizontally and arranged one by one, at which time the connecting rods 2 are located in the same straight line, the connecting rods 2 are arranged in sequence and connected by means of the card block 7, specifically, a card slot is provided on the left side of the connecting rod 2, and a card block 7 is provided on the right side of the connecting rod 2, the card block 7 can be embedded in the card slot to connect and fix the adjacent connecting rods 2, any adjacent capacitive screen 1 is selected for illustration, since a reset spring 501 is connected between the card blocks 7, the card block 7 can be moved backward and reset after sliding into the card slot, so as to achieve the card connection and fixation with the connecting rod 2, when the card block 7 needs to be unlocked, the knob 9 can be turned, since the spline shaft 8 provided at the bottom of the knob 9 is slidably connected to the winding shaft 5 through the spline, the card block 7 can be aligned with the winding shaft 5 by driving the pull rope 6. The ratchet ring 10 arranged in the limit ring 4 can limit the one-way rotation of the spline shaft 8, that is, the staff only needs to turn the knob 9 clockwise. Even if the hand leaves the knob 9, the spline shaft 8 will not rotate in the opposite direction. Therefore, the staff can smoothly move the block 7 in the opposite direction by winding the reel 5. When the block 7 is out of the slot, the adjacent connecting rods 2 can be separated. When the block 7 needs to be reset, the knob 9 is pulled upward to make the ratchet teeth 11 disengage from the ratchet ring 10. The back panel 3 is provided with a handle 13 and a fixing seat 14. The handle 13 can facilitate the staff to operate the back panel 3 and the capacitive screen 1, and the fixing seat 14 can fix the back panel 3 to the wall or other carriers by bolts. The longitudinally arranged capacitive screens 1 can be slidably connected by the limit rails 15.

[0028] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A spliced ​​capacitive screen, comprising a capacitive screen (1), a connecting rod (2) and a back plate (3), wherein a slide rail is arranged on the back of the capacitive screen (1), the capacitive screen (1) is fixed to the connecting rod (2) by means of the slide rail clamping, and the connecting rod (2) is fixedly connected to the back plate (3), wherein: The invention also comprises a limit ring (4), a winding shaft (5), a reset spring (501), a clamping block (7) and a spline shaft (8); the limit ring (4) is fixedly connected to one side of the connecting rod (2), and the side of the connecting rod (2) is rotatably connected to the winding shaft (5); the clamping blocks (7) are arranged opposite to each other and are slidably connected to the side of the connecting rod (2); a reset spring (501) is connected between the clamping blocks (7); a pull rope (6) is wound around the winding shaft (5) and its end is connected to the clamping block (7); the spline shaft (8) is limitedly rotated in the limit ring (4) and is slidably connected to the winding shaft (5) through a spline; the capacitive screen (1) is arranged horizontally so that the connecting rods (2) are connected end to end; the clamping block (7) can fix the adjacent connecting rods (2) by clamping; the winding shaft (5) can be driven to rotate by rotating the spline shaft (8); the winding shaft (5) pulls the clamping block (7) to move in opposite directions through the pull rope (6) to achieve unlocking.

2. A spliced ​​capacitive screen according to claim 1, characterized in that: The utility model also comprises a knob (9), which is fixedly connected to the upper end of the spline shaft (8), and an anti-slip groove is arranged around the knob (9).

3. A spliced ​​capacitive screen according to claim 2, characterized in that: It also comprises a ratchet ring (10) and ratchet teeth (11); the inner ring of the limiting ring (4) is arranged as the ratchet ring (10); the middle part of the spline shaft (8) is fixedly connected with the ratchet teeth (11); the ratchet ring (10) and the ratchet teeth (11) are unidirectionally meshed.

4. A spliced ​​capacitive screen according to claim 3, characterized in that: It also includes a torsion spring (12), which is connected between the spline shaft (8) and the connecting rod (2).

5. A spliced ​​capacitive screen according to claim 4, characterized in that: It also includes a handle (13), which is arranged at the middle of the back plate (3), and an anti-slip pad is arranged on the outside of the handle (13).

6. A spliced ​​capacitive screen according to claim 5, characterized in that: It also includes a fixing seat (14), The fixing seat (14) is arranged at the end of the back plate (3), and bolt holes are equidistantly provided on the fixing seat (14), through which the back plate (3) can be fixed.

7. A spliced ​​capacitive touch screen according to claim 6, characterized in that: It also includes a limit track (15), and the limit track (15) is arranged on the back of the capacitive screen (1).

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