Keyboard film for blind people

Abstract

The utility model discloses a keyboard film for blind people, which comprises a film surface and key slots matched with keyboard keys, the key slots are halfpace-shaped bulges, and braille salient points corresponding to the keyboard keys are arranged at the tops of the key slots; and fixing belts are arranged on two sides of the membrane surface. According to the keyboard cover for the blind, the keyboard cover can be fixed conveniently, the covering area of the opening of the key groove is large, the range allowing the keyboard to deviate is large, and the keyboard cover can be used by the blind conveniently.

Description

Technical Field

[0001] The utility model relates to the field of keyboard membranes, in particular to a keyboard membrane for the blind. Background Art

[0002] Keyboard membranes are often used to protect keyboards, and their main function is to prevent dust and water. The existing Braille keyboard is an important input component in computers for the blind. The Braille keyboard is similar to the standard keyboard, except that in addition to providing each key with a letter it represents, the Braille keyboard also provides a corresponding Braille symbol. However, existing keyboard membranes for the blind are relatively portable, and are also used to protect laptop keyboards, and their main function is to prevent dust and water, and their cost is relatively low. However, there are subtle differences in the layout of different laptop keyboards. When blind people use keyboard membranes on different laptops, the Braille cannot be completely aligned with the keyboard. Since the keys of laptop computers are thinner and have a shorter travel, and there is a lack of fixation on the keyboard membrane, the keyboard membrane is easily shifted by finger pressure during typing, which is inconvenient to use. Utility Model Content

[0003] In view of the above problems, the utility model provides a keyboard membrane for the blind, which is convenient for fixing the keyboard membrane, and the key slot notch covers a large area, allowing a large range of keyboard displacement, which is convenient for the blind to use.

[0004] The technical solution of the utility model is as follows:

[0005] A keyboard membrane for the blind comprises a membrane surface and a key slot arranged on the membrane surface to match a keyboard key, wherein the key slot is a stepped protrusion, and a Braille protrusion corresponding to the keyboard key is arranged on the top of the key slot; fixing belts are arranged on both sides of the membrane surface.

[0006] In a further technical solution, reference blocks are respectively provided around the top surface of the membrane surface.

[0007] In a further technical solution, the fixing belt is C-shaped, with two ends respectively connected to two sides of the membrane surface, and the fixing belt is made of elastic material.

[0008] In a further technical solution, anti-slip strips are provided around the bottom surface of the membrane surface.

[0009] In a further technical solution, air holes are provided on the membrane surface between the key grooves.

[0010] In a further technical solution, the membrane surface is made of TPU material.

[0011] The beneficial effects of the utility model are:

[0012] 1. The keyboard membrane can be fixed on the notebook keyboard to be used by the fixing belts on both sides of the membrane surface. Since the key slot is a stepped protrusion, the notch area at the bottom of the key slot is larger than the top. When different notebook keyboards are arranged without exceeding the key slot range of the keyboard membrane, it is conducive to covering the notebook keyboard and achieving basic alignment. The blind can use the Braille convex dots on the key slot to perform touch recognition typing, replacing the Braille keyboard, which provides good protection for the keyboard and is convenient to use. When in use, due to the fixation of the fixing belt and the key slot that is conveniently covered on the key, the keyboard membrane is not easily gradually deflected by finger pressing;

[0013] 2. Set a reference block to facilitate the blind to quickly identify the position of the keyboard membrane by touch;

[0014] 3. The fixing belt can be put on the outside of the notebook, suitable for notebooks of different sizes, easy to fix;

[0015] 4. The anti-slip strip can fit the edge of the laptop keyboard to further prevent the keyboard membrane from shifting when typing;

[0016] 5. The ventilation holes allow the laptop to dissipate heat and ventilate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of a keyboard membrane for the blind according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the back side of a keyboard membrane for the blind according to an embodiment of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the keyway described in the embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Membrane surface; 2. Keyway; 3. Braille dots; 4. Fixing belt; 5. Reference block; 6. Anti-slip strip; 7. Air vent. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Example:

[0024] like Figure 1-Figure 3 As shown, a keyboard membrane for the blind comprises a membrane surface 1 and a key slot 2 arranged on the membrane surface 1 to match the keyboard keys. The membrane surface 1 can be made of TPU material to meet the waterproof and dustproof effects. The key slot 2 is a stepped protrusion, and the top of the key slot 2 is provided with Braille protrusions 3 corresponding to the keyboard keys; fixing belts 4 are provided on both sides of the membrane surface 1, and the fixing belts 4 are C-shaped, with both ends respectively connected to the two sides of the membrane surface 1. The fixing belts 4 are made of elastic material, and optionally, rubber or silicone material.

[0025] The working principle of the above technical solution is as follows:

[0026] When in use, the keyboard membrane can be fixed on the notebook keyboard to be used by the fixing belts 4 on both sides of the membrane surface 1. The fixing belts 4 can be put on the outside of the notebook, which is suitable for notebooks of different sizes and convenient to fix. Since the key slot 2 is a stepped protrusion, the notch area at the bottom of the key slot 2 is larger than the top. When different notebook keyboards are arranged without exceeding the range of the keyboard membrane key slot 2, it is beneficial to cover the notebook keyboard and achieve basic alignment. The blind can use the Braille convex dots 3 on the key slot 2 to perform touch recognition typing, replacing the Braille keyboard, which provides good protection for the keyboard and is convenient to use. When in use, due to the fixation of the fixing belt 4 and the key slot 2 that is conveniently put on the key, the keyboard membrane is not easily gradually offset by finger pressure.

[0027] In another embodiment, if Figure 1 As shown, reference blocks 5 are respectively arranged around the top surface of the membrane surface 1. The reference blocks 5 can be cylindrical and higher than the key slot 2, so that the blind can quickly identify the position of the keyboard membrane by touch.

[0028] In another embodiment, if Figure 2 As shown, anti-skid strips 6 are respectively arranged around the bottom surface of the membrane surface 1. The anti-skid strips 6 can be made of rubber material and can fit the edge of the notebook keyboard to further prevent the keyboard membrane from shifting during typing.

[0029] In another embodiment, if Figure 1-2 As shown, the membrane surface 1 between the key slots 2 is provided with ventilation holes 7 to facilitate heat dissipation and ventilation of the notebook computer.

[0030] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A keyboard membrane for the blind, characterized in that: It comprises a membrane surface and a key slot on the membrane surface matching a keyboard key, wherein the key slot is a stepped protrusion, and a Braille protrusion corresponding to the keyboard key is arranged on the top of the key slot; fixing belts are arranged on both sides of the membrane surface.

2. A keyboard membrane for the blind according to claim 1, characterized in that: Reference blocks are respectively arranged around the top surface of the membrane surface.

3. The keyboard membrane for the blind according to claim 1, characterized in that: The fixing belt is C-shaped, with two ends respectively connected to two sides of the membrane surface, and the fixing belt is made of elastic material.

4. The keyboard membrane for the blind according to claim 1, characterized in that: Anti-slip strips are respectively arranged around the bottom surface of the membrane surface.

5. The keyboard membrane for the blind according to claim 1, characterized in that: Air holes are arranged on the membrane surface between the key grooves.

6. The keyboard membrane for the blind according to claim 1, characterized in that: The membrane surface is made of TPU material.

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