Reflection type shaft body and linear optical axis keyboard

Abstract

The utility model provides a reflective shaft body and a linear optical axis keyboard. The reflection type shaft body comprises a PCB, a key body and a reflection mechanism, a first through hole is formed in the PCB, a light guide cavity is formed in the bottom of the key body, a cavity is formed in the key body, a second through hole is formed in the top of the key body, and the first through hole, the light guide cavity, the cavity and the second through hole are communicated; the reflection mechanism is composed of a reflection assembly and two reset assemblies. The reflective shaft body and the linear optical axis keyboard provided by the utility model can realize quick response of the key and more than two state settings proposed by the background technology based on the linear photosensitive sensing device, and realize multi-gear setting of the keyboard, so that the photosensitive sensing device is zero in power consumption in a non-starting state, and low power consumption can also be realized; therefore, the service life can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboards, and in particular relates to a reflective shaft and a linear optical axis keyboard. Background Art

[0002] Mechanical keyboard is a common keyboard, each key of which has a separate switch to control the closing. Mechanical keyboard has always been a representative of high-end products, and is welcomed by more and more computer users and game players. The switch generally used is a metal contact type mechanical key switch. This switch is realized by whether the metal contacts of the static pressure plate and the dynamic pressure plate set in the shell are in contact with each other. In the displacement process of pressing the mechanical switch handle, the metal contact on the dynamic pressure plate meets the metal contact on the static pressure plate to realize the conduction of the mechanical switch; when the handle of the mechanical switch is released, the dynamic pressure plate returns to its original position under the action of the spring elasticity, and the metal contact of the dynamic pressure plate leaves the metal contact on the static pressure plate, thereby realizing the disconnection of the mechanical switch. With this solution, the metal contact of the mechanical switch is easy to be damaged, because in the process of pressing the key, the elasticity of the dynamic pressure plate will be greatly different from the original state as the number of uses increases, which is easy to cause the metal contact to be insensitive or unable to conduct, and the service life is limited, causing trouble to the user. In addition, the traditional mechanical keyboard sets the optical crystal transmitting and receiving devices in the key switch, welds the bottom pins on the PCB board, and then engages the key switch in the card slot, and finally fixes the PCB board to the iron plate by rotating the fixing column on the iron plate. This results in that once a key is damaged, it is very troublesome to disassemble and repair it. Not only does it need to unscrew the fixing column, but it also needs to unplug the optical crystal receiving device and the transmitting device from the PCB board, which is very difficult to handle and can easily cause damage to the keyboard. At the same time, the conduction accuracy of this type of keyboard is limited by the distance between the PCB board and the iron plate, and is not easy to control; in addition, this type of keyboard is not conducive to large-scale industrial production.

[0003] After searching, in the related art, the patent document with the authorization publication number CN204668217U discloses a split-type optical guide key switch and a mechanical keyboard, wherein the key switch includes a key switch body, an optical crystal emitting device and an optical crystal receiving device arranged on a PCB board, the key switch body includes a housing and a handle arranged on the housing, the optical crystal emitting device and the optical crystal receiving device are separated by a first light blocking device; a first light guide is arranged above the optical crystal emitting device, and a second light guide is arranged above the optical crystal receiving device; the optical signal emitted by the optical crystal emitting device returns to the optical crystal receiving device after being transmitted by the first light guide and the second light guide; a second light blocking device for shielding the optical signal transmitted from the first light guide to the second light guide is arranged on the handle. By arranging the light guide, the utility model not only improves the transmission stability of the optical signal, but also reduces the cost and process requirements of the key switch, and at the same time greatly improves the accuracy and service life of the mechanical keyboard.

[0004] Regarding the above-mentioned related technologies, the utility model applicant believes that there are the following defects:

[0005] 1. Although the above technology not only improves the transmission stability of optical signals by setting a light guide, but also reduces the cost and process requirements of key switches, and greatly improves the accuracy and service life of mechanical keyboards, the optical axis keyboard used in the above technology is based on the transmitting end (IR) and the receiving end (PT). The receiving end (PT) is a switch type and can only generate signals by identifying high and low levels. The trigger time and stroke are fixed and can only identify two states. This application has low sensitivity and limited application. It is not suitable for applications with more than two states and has high power consumption.

[0006] Therefore, it is necessary to provide a new reflective axis and linear optical axis keyboard to solve the above technical problems. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a reflective axis and a linear optical axis keyboard based on a linear light-sensitive sensor device, which can realize fast key response and realize more than two state settings proposed in the background technology, thereby realizing multi-level keyboard settings. Therefore, the light-sensitive sensor device has zero power consumption when not turned on, and can also achieve low power consumption, thereby extending the service life of the reflective axis and linear optical axis keyboard.

[0008] In order to solve the above technical problems, the reflective shaft provided by the utility model comprises: a PCB board, a key body and a reflective mechanism, the PCB board is provided with a through hole 1, the bottom of the key body is provided with a light guide cavity, the key body is provided with a cavity, the top of the key body is provided with a through hole 2, the through hole 1, the light guide cavity, the cavity and the through hole 2 are connected;

[0009] The reflection mechanism is composed of a reflection component and two reset components. The reflection component includes two installation cavities, two lenses, a photosensitive IC receiver, an LED visible light infrared transmitter, a light blocking column, a light blocking plate and a light blocking axis. The two installation cavities are both opened on the button body. The two installation cavities are respectively located on both sides of the light guide cavity and are connected to the light guide cavity. The two lenses are respectively arranged in the two installation cavities. The photosensitive IC receiver is arranged in the corresponding installation cavity and connected to the PCB board. The LED visible light infrared transmitter is arranged in the corresponding installation cavity and connected to the PCB board. The photosensitive IC receiver and the LED visible light infrared transmitter are adapted to the two lenses. The light blocking column is slidably installed in the light guide cavity. The light blocking plate is fixedly installed on the light blocking column. The light blocking plate is located between the two installation cavities. The light blocking axis is fixedly installed on the light blocking column, and the light blocking axis is adapted to through hole one.

[0010] As a further solution of the utility model, the reflection mechanism also includes a connecting shaft and a push handle, the connecting shaft is arranged in the cavity, the bottom end of the connecting shaft extends into the light guiding cavity and is connected to the light blocking column, the push handle is slidably installed in the second through hole, the top of the push handle extends to above the top of the button body, and the bottom of the push handle extends into the cavity and is connected to the connecting shaft.

[0011] As a further solution of the utility model, concave grooves are provided on the inner walls on both sides of the cavity, and two reset components are respectively arranged in the two concave grooves.

[0012] As a further solution of the utility model, the reset assembly includes a round rod, a moving block, a telescopic spring and a limit block. The round rod is fixedly installed in the concave groove, the moving block is slidably installed on the round rod, and one side of the moving block extends into the cavity and is fixedly connected to the connecting shaft.

[0013] As a further solution of the utility model, the telescopic spring is slidably sleeved on the round rod, the bottom end of the telescopic spring is fixedly connected to the bottom inner wall of the concave groove, the top end of the telescopic spring is fixedly connected to the bottom of the moving block, the limit block is fixedly installed in the concave groove, and the limit block is adapted to the moving block.

[0014] As a further solution of the utility model, a sliding sleeve on the light-blocking axis is provided with a second telescopic spring, the bottom end of the second telescopic spring is connected to the PCB board, the top end of the second telescopic spring is in contact with the bottom of the light-blocking column, and a sealing ring is provided in the second through hole, which is adapted to the handle.

[0015] A linear optical axis keyboard comprises a mechanical keyboard body, wherein the mechanical keyboard body is composed of a reflective axis body.

[0016] Compared with the related art, the reflective shaft and linear optical axis keyboard provided by the utility model have the following beneficial effects:

[0017] 1. The utility model can realize fast key response and realize more than two state settings proposed in the background technology based on the linear photosensor, and realize multi-level keyboard settings. Therefore, the photosensor has zero power consumption when not turned on, and can also achieve low power consumption, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the light blocking plate in the utility model;

[0021] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0022] Figure 4 It is a schematic diagram of the linear optical axis keyboard of the utility model.

[0023] In the figure: 1, PCB board; 100, through hole 1; 2, button body; 3, light guide cavity; 4, cavity; 5, through hole 2; 6, installation cavity; 61, lens; 7, photosensitive IC receiver; 8, LED visible light infrared transmitter; 9, light blocking column; 10, light blocking plate; 11, light blocking axis; 12, connecting axis; 13, button handle; 14, concave groove; 15, round rod; 16, moving block; 17, telescopic spring 1; 18, limit block; 19, telescopic spring 2; 20, sealing ring. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 It is a schematic diagram of the structure of the utility model; Figure 2 It is a schematic diagram of the light blocking plate in the utility model; Figure 3 for Figure 1 The enlarged structural diagram of part A in the figure. The reflective shaft includes: a PCB board 1, a key body 2 and a reflective mechanism, the PCB board 1 is provided with a through hole 100, the bottom of the key body 2 is provided with a light guide cavity 3, the key body 2 is provided with a cavity 4, the top of the key body 2 is provided with a through hole 2 5, the through hole 100, the light guide cavity 3, the cavity 4 and the through hole 2 5 are connected;

[0025] The reflection mechanism is composed of a reflection component and two reset components. The reflection component includes two installation cavities 6, two lenses 61, a photosensitive IC receiver 7, an LED visible light infrared transmitter 8, a light blocking column 9, a light blocking plate 10 and a light blocking axis 11. The two installation cavities 6 are both opened on the button body 2. The two installation cavities 6 are respectively located on both sides of the light guide cavity 3 and are connected to the light guide cavity 3. The two lenses 61 are respectively arranged in the two installation cavities 6. The photosensitive IC receiver 7 is arranged in the corresponding installation cavity 6 and is connected to the PCB board 1. The LED visible light infrared transmitter 8 is arranged in the corresponding installation cavity 6 and is connected to the PCB board 1. The photosensitive IC receiver 7 and the LED visible light infrared transmitter 8 are adapted to the two lenses 61. The light blocking column 9 is slidably installed in the light guide cavity 3. The light blocking plate 10 is fixedly installed on the light blocking column 9. The light blocking plate 10 is located between the two installation cavities 6. The light blocking axis 11 is fixedly installed on the light blocking column 9. The light blocking axis 11 is adapted to the through hole 100.

[0026] The reflection mechanism also includes a connecting shaft 12 and a handle 13. The connecting shaft 12 is arranged in the cavity 4. The bottom end of the connecting shaft 12 extends into the light guiding cavity 3 and is connected to the light blocking column 9. The handle 13 is slidably installed in the through hole 2 5. The top of the handle 13 extends to above the top of the button body 2. The bottom of the handle 13 extends into the cavity 4 and is connected to the connecting shaft 12.

[0027] Concave grooves 14 are formed on the inner walls of both sides of the cavity 4 , and two reset components are respectively disposed in the two concave grooves 14 .

[0028] The reset assembly includes a round rod 15, a moving block 16, a telescopic spring 17 and a limit block 18. The round rod 15 is fixedly installed in the concave groove 14, and the moving block 16 is slidably installed on the round rod 15. One side of the moving block 16 extends into the cavity 4 and is fixedly connected to the connecting shaft 12.

[0029] The telescopic spring 17 is slidably mounted on the round rod 15, the bottom end of the telescopic spring 17 is fixedly connected to the bottom inner wall of the concave groove 14, the top end of the telescopic spring 17 is fixedly connected to the bottom of the moving block 16, the limit stop block 18 is fixedly installed in the concave groove 14, and the limit stop block 18 is adapted to the moving block 16.

[0030] A second telescopic spring 19 is provided on the sliding sleeve of the light-blocking shaft 11, the bottom end of the second telescopic spring 19 is connected to the PCB board 1, the top end of the second telescopic spring 19 contacts the bottom of the light-blocking column 9, and a sealing ring 20 is provided in the second through hole 5, and the sealing ring 20 is adapted to the handle 13.

[0031] The working principle of the reflective shaft provided by the utility model is as follows:

[0032] Step 1: The LED visible light infrared transmitter 8 and the photosensitive IC receiver 7 are in a separated state by the light blocking plate 10. When in use, the button handle 13 is pressed, and the button handle 13 drives the connecting shaft 12, the light blocking column 9, the light blocking plate 10, and the light blocking shaft 11 to move downward. When the light blocking plate 10 moves downward, the light emitted by the LED visible light infrared transmitter 8 can be reflected by the corresponding lens 61, and then pass through the light guide cavity 3 into the corresponding installation cavity 6 and be reflected again by the corresponding lens 61, and finally be received by the photosensitive IC receiver 7, and then be in a connected state. The photosensitive IC receiver 7 is a linear light sensitive device, and based on the linear light sensitive device, it can realize fast key response and realize the two or more state settings proposed in the background technology, and realize the multi-speed setting of the keyboard. Therefore, the light sensitive device has zero power consumption when it is not turned on, and can also achieve low power consumption, so the service life can be extended;

[0033] The second step: because the connecting shaft 12 will drive the moving block 16 to move downward to compress the telescopic spring 17 when moving downward, and the light blocking column 9 will press the light blocking axis 11 when moving downward. Therefore, when the handle 13 is not pressed, it will be reset under the elastic action of the telescopic spring 17 and the light blocking axis 11, so that the light can be blocked by the light blocking plate 10 to achieve the isolation state, and the limit block 18 can have a limiting effect.

[0034] A linear optical axis keyboard comprises a mechanical keyboard body, wherein the mechanical keyboard body is composed of a reflective axis body.

[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0036] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0037] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A reflective shaft, characterized in that: include: A PCB board, a key body and a reflection mechanism, wherein the PCB board is provided with a first through hole, the bottom of the key body is provided with a light guide cavity, the key body is provided with a cavity, the top of the key body is provided with a second through hole, and the first through hole, the light guide cavity, the cavity and the second through hole are in communication; The reflection mechanism is composed of a reflection component and two reset components. The reflection component includes two installation cavities, two lenses, a photosensitive IC receiver, an LED visible light infrared transmitter, a light blocking column, a light blocking plate and a light blocking axis. The two installation cavities are both opened on the button body. The two installation cavities are respectively located on both sides of the light guide cavity and are connected to the light guide cavity. The two lenses are respectively arranged in the two installation cavities. The photosensitive IC receiver is arranged in the corresponding installation cavity and connected to the PCB board. The LED visible light infrared transmitter is arranged in the corresponding installation cavity and connected to the PCB board. The photosensitive IC receiver and the LED visible light infrared transmitter are adapted to the two lenses. The light blocking column is slidably installed in the light guide cavity. The light blocking plate is fixedly installed on the light blocking column. The light blocking plate is located between the two installation cavities. The light blocking axis is fixedly installed on the light blocking column, and the light blocking axis is adapted to through hole one.

2. The reflective shaft according to claim 1, characterized in that: The reflection mechanism also includes a connecting shaft and a handle, the connecting shaft is arranged in the cavity, the bottom end of the connecting shaft extends into the light guiding cavity and is connected to the light blocking column, the handle is slidably installed in the second through hole, the top of the handle extends to above the top of the key body, and the bottom of the handle extends into the cavity and is connected to the connecting shaft.

3. The reflective shaft according to claim 1, characterized in that: The inner walls on both sides of the cavity are provided with concave grooves, and the two reset components are respectively arranged in the two concave grooves.

4. The reflective shaft according to claim 3, characterized in that: The reset assembly includes a round rod, a moving block, a telescopic spring and a limit block. The round rod is fixedly installed in the concave groove, the moving block is slidably installed on the round rod, and one side of the moving block extends into the cavity and is fixedly connected to the connecting shaft.

5. The reflective shaft according to claim 4, characterized in that: The telescopic spring 1 is slidably sleeved on the round rod, the bottom end of the telescopic spring 1 is fixedly connected to the bottom inner wall of the concave groove, the top end of the telescopic spring 1 is fixedly connected to the bottom of the moving block, the limit stop block is fixedly installed in the concave groove, and the limit stop block is adapted to the moving block.

6. The reflective shaft according to claim 4, characterized in that: The sliding sleeve on the light-blocking axis is provided with a second telescopic spring, the bottom end of the second telescopic spring is connected to the PCB board, the top end of the second telescopic spring is in contact with the bottom of the light-blocking column, and a sealing ring is provided in the second through hole, which is adapted to the handle.

7. A linear optical axis keyboard, characterized in that: It comprises a mechanical keyboard body, wherein the mechanical keyboard body is composed of the reflective shaft body as claimed in claim 1.

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