Optical axis for keyboard

Abstract

The utility model relates to the technical field of optical axes, in particular to an optical axis for a keyboard, which comprises a shell, a transmitting geminate transistor and a receiving geminate transistor, the outer surface of the shell is sleeved with an upper cover, the bottom end of the shell is connected with a circuit board in an inserted manner, the surface of the shell is connected with a shaft rod in a sliding manner, and the outer surface of the shaft rod is fixedly connected with a shaft core. A positioning rod is fixedly connected to the bottom end of the shell, a connecting groove and a positioning groove are formed in the surface of the circuit board in a penetrating mode, and a limiting block is fixedly connected to the outer surface of a shaft rod. The upper cover and the lower cover are integrally formed, the upper cover and the lower cover can be conveniently and rapidly assembled and used, the interior is optimized, the shape of the shaft is changed, original shaft parts inside are replaced, the cylindrical rod is adopted, the spring is combined, the rapid telescopic effect is achieved, the internal structure is simple, the manufacturing cost is reduced, and the service life is prolonged. And moreover, connection and blocking operation on pipe signals are facilitated, data transmission is facilitated, and the use performance and effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical axes, in particular to an optical axis for a keyboard. Background Art

[0002] Optical axis is an innovative micro switch technology born from traditional mechanical keyboards. It replaces the trigger metal paddle in the traditional mechanical axis switch structure with an infrared optical sensing component. It uses the principle of light sensing to generate resistances of different values, forming two states: open circuit and passage, thereby triggering key signal instructions.

[0003] By using the optical axis, the transmission of the command signal can be effectively controlled. However, when the existing optical axis is used, the optical axis is connected by splicing, and has many components, which makes it inconvenient to assemble it quickly. In addition, the internal parts slide up and down, which has a high manufacturing cost. The mutual friction between the parts affects the service life of the optical axis. Utility Model Content

[0004] The purpose of the utility model is to provide an optical axis for a keyboard, so as to solve the problems proposed in the above-mentioned background technology that the optical axis is connected by splicing, has many components, is not convenient for quick assembly, and slides up and down through complex parts inside, resulting in high manufacturing costs, and the mutual friction between parts affects the service life of the optical axis.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical axis for a keyboard, comprising a shell, a transmitting pair of tubes and a receiving pair of tubes, the outer surface of the shell is sleeved with an upper cover, the bottom end of the shell is plugged and connected with a circuit board, the surface of the shell is slidably connected with a shaft rod, the outer surface of the shaft rod is fixedly connected with an axis core, the bottom end of the shell is fixedly connected with a positioning rod, the surface of the circuit board is penetrated with a connecting groove and a positioning groove, the outer surface of the shaft rod is fixedly connected with a limiting block, the bottom end of the shaft rod is sleeved with a supporting spring, the inner side of the shell is provided with a limiting groove, the inner side of the shell is fixedly connected with a connecting column, the interior of the connecting column is provided with a telescopic groove, and the outer surface of the shell is fixedly connected with a card block.

[0006] Preferably, the upper cover acts on the top of the circuit board through the shell, the upper cover is in a "U" shape, the circuit board acts on the bottom end of the shell in a plate shape, and the shaft and the shell are plug-in connected.

[0007] Preferably, the outer surface of the shaft core is inclined, the shaft core is slidably connected to the outer shell through a shaft rod, and the positioning rod is plug-in connected to the outer shell and the positioning groove.

[0008] Preferably, the transmitting pair of tubes and the receiving pair of tubes act on opposite sides of the shaft core through a circuit board, and the housing is plug-in connected to the circuit board through a connecting groove.

[0009] Preferably, the limit blocks are in two groups and act on opposite sides of the shaft rod. The bottom end of the shaft rod is fixedly connected with an insertion rod, and the two ends of the support spring are sleeved on the outer surfaces of the insertion rod and the connecting column.

[0010] Preferably, the insertion rod at the bottom end of the shaft rod is plug-connected with the telescopic groove, and the telescopic groove is in the shape of a circular groove and passes through the surface of one end of the connecting column.

[0011] Preferably, the clamping blocks are in two groups and act on the outer surface of the shell, and the upper cover is connected to the shell through the clamping blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By changing the assembly method of the upper and lower covers, the upper and lower covers are connected by snapping. The upper and lower covers are formed in one piece, which is convenient for quick assembly and use. The internal part is optimized, the shape of the shaft is changed, and the original shaft parts inside are replaced. A cylindrical rod is used, and combined with a spring, the effect of rapid expansion and contraction is achieved. The internal structure is simple, the manufacturing cost is reduced, and it is convenient to connect and block the tube signal, which is convenient for data transmission, improves the performance and effect of use, and the components of the existing optical axis are changed from 3 plastic parts to 2 plastic parts, which simplifies the product assembly process structure and reduces the material manufacturing cost and material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a front view and cutaway perspective diagram of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a three-dimensional explosion of the structure of the utility model;

[0017] Figure 4 It is a partially cutaway exploded perspective view of the connection structure between the housing and the shaft rod of the utility model;

[0018] Figure 5 It is a cross-sectional perspective schematic diagram of the connection structure between the housing and the shaft rod of the utility model.

[0019] In the figure: 1. outer shell; 2. upper cover; 3. circuit board; 4. shaft rod; 5. shaft core; 6. positioning rod; 7. transmitting pair of tubes; 8. receiving pair of tubes; 9. connecting groove; 10. positioning groove; 11. limiting block; 12. supporting spring; 13. limiting groove; 14. connecting column; 15. telescopic groove; 16. clamping block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A keyboard optical axis comprises a shell 1, a transmitting pair of tubes 7 and a receiving pair of tubes 8, wherein an upper cover 2 is sleeved on the outer surface of the shell 1, a circuit board 3 is plugged and connected to the bottom end of the shell 1, a shaft rod 4 is slidably connected to the surface of the shell 1, a shaft core 5 is fixedly connected to the outer surface of the shaft rod 4, a positioning rod 6 is fixedly connected to the bottom end of the shell 1, a connecting groove 9 and a positioning groove 10 are provided through the surface of the circuit board 3, a limiting block 11 is fixedly connected to the outer surface of the shaft rod 4, a supporting spring 12 is sleeved on the bottom end of the shaft rod 4, a limiting groove 13 is provided on the inner side of the shell 1, a connecting column 14 is fixedly connected to the inner side of the shell 1, a telescopic groove 15 is provided inside the connecting column 14, a clamping block 16 is fixedly connected to the outer surface of the shell 1, and through the connection between the shell 1 and the clamping block 16, under the action of the clamping block 16, a connection limiting effect of the upper cover 2 on the shell 1 is achieved, and under the plug-in connection of the positioning rod 6 and the positioning groove 10, a supporting effect of the circuit board 3 at the action position on the shell 1 is achieved.

[0023] Furthermore, the upper cover 2 acts on the top of the circuit board 3 through the outer shell 1. The upper cover 2 is in a "U" shape, and the circuit board 3 acts on the bottom end of the outer shell 1 in a plate shape. The shaft rod 4 and the outer shell 1 are plugged together, and through the connection between the upper cover 2 and the outer shell 1, and the connection between the outer shell 1 and the circuit board 3, the supporting effect on the action position of the outer shell 1 is achieved.

[0024] Furthermore, the outer surface of the shaft core 5 is inclined, the shaft core 5 is slidably connected to the outer shell 1 through the shaft rod 4, the positioning rod 6 is plug-connected to the outer shell 1 and the positioning groove 10, and through the connection between the shaft core 5 and the shaft rod 4, under the sliding connection between the shaft rod 4 and the outer shell 1, the control effect of the action position of the shaft core 5 in the outer shell 1 is achieved.

[0025] Furthermore, the transmitting pair of tubes 7 and the receiving pair of tubes 8 act on both sides of the shaft core 5 through the circuit board 3, and the housing 1 is plugged and connected to the circuit board 3 through the connecting groove 9. Through the action of the transmitting pair of tubes 7 and the receiving pair of tubes 8, the transmission and reception operations of the signal are realized.

[0026] Furthermore, the limit blocks 11 are in two groups and act on opposite sides of the shaft rod 4. The bottom end of the shaft rod 4 is fixedly connected with an insertion rod. The two ends of the support spring 12 are sleeved on the outer surface of the insertion rod and the connecting column 14. Through the connection between the shaft rod 4 and the limit blocks 11, and the connection between the support spring 12 and the insertion rod on the shaft rod 4, the elastic sliding effect of the shaft rod 4 in the housing 1 is achieved.

[0027] Furthermore, the insertion rod at the bottom end of the shaft rod 4 is plugged into and connected with the telescopic groove 15. The telescopic groove 15 is in the shape of a circular groove and passes through one end surface of the connecting column 14. The clamping blocks 16 are in two groups and act on the outer surface of the shell 1. The upper cover 2 is plugged into and connected with the shell 1 through the clamping blocks 16. Through the connection between the connecting column 14 and the telescopic groove 15, under the action of the telescopic groove 15, the position limiting effect of the insertion rod on the shaft rod 4 is achieved. Under the connection between the clamping blocks 16 and the shell 1, the support operation of the position of the upper cover 2 on the shell 1 is completed.

[0028] Working principle: When the optical axis is used, the shaft rod 4 is pressed to make the shaft core 5 slide in the outer shell 1. Through the connection between the support spring 12 and the connecting column 14, under the action of the support spring 12, the elastic sliding operation of the shaft rod 4 in the outer shell 1 is completed. Under the action of the limit block 11 and the limit groove 13, the effect of limiting the action position of the shaft rod 4 in the outer shell 1 is achieved. Through the action of the shaft core 5, the transmission signal between the transmitting tube 7 and the receiving tube 8 is blocked and controlled. Under the action of the clamping block 16, the upper cover 2 and the outer shell 1 are clamped to achieve the effect of rapid assembly. Through the action of the plug rod and the telescopic groove 15, the internal structure of the optical axis is simplified, the manufacturing cost is reduced, and the performance and effect of use are improved.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An optical axis for a keyboard, comprising a housing (1), a transmitting pair of tubes (7) and a receiving pair of tubes (8), characterized in that: The outer surface of the housing (1) is sleeved with an upper cover (2). The bottom end of the housing (1) is inserted and connected with a circuit board (3). A shaft rod (4) is slidably connected to the surface of the housing (1). A shaft core (5) is fixedly connected to the outer surface of the shaft rod (4). A positioning rod (6) is fixedly connected to the bottom end of the housing (1). Connecting grooves (9) and positioning grooves (10) are formed through the surface of the circuit board (3). A limiting block (11) is fixedly connected to the outer surface of the shaft rod (4). A support spring (12) is sleeved on the bottom end of the shaft rod (4). A limiting groove (13) is formed inside the housing (1). A connecting column (14) is fixedly connected to the inside of the housing (1). A telescopic groove (15) is formed inside the connecting column (14). A clamping block (16) is fixedly connected to the outer surface of the housing (1).

2. The optical axis for a keyboard according to claim 1, characterized in that: The upper cover (2) acts above the circuit board (3) through the housing (1). The upper cover (2) is in a "return" shape. The circuit board (3) acts as a plate at the bottom end of the housing (1). The shaft rod (4) is inserted and connected with the housing (1).

3. The optical axis for a keyboard according to claim 1, characterized in that: The outer surface of the shaft core (5) is inclined. The shaft core (5) is slidably connected to the housing (1) through the shaft rod (4). The positioning rod (6) is inserted and connected to the positioning groove (10) through the housing (1).

4. The optical axis for a keyboard according to claim 1, characterized in that: The transmitting pair of tubes (7) and the receiving pair of tubes (8) act oppositely on both sides of the shaft core (5) through the circuit board (3). The housing (1) is inserted and connected to the circuit board (3) through the connecting groove (9).

5. The optical axis for a keyboard according to claim 1, characterized in that: The limiting blocks (11) are in two groups and act on the opposite sides of the shaft rod (4). A plug rod is fixedly connected to the bottom end of the shaft rod (4). Both ends of the support spring (12) are sleeved on the outer surfaces of the plug rod and the connecting column (14).

6. The optical axis for a keyboard according to claim 5, characterized in that: The plug rod at the bottom end of the shaft rod (4) is inserted and connected to the telescopic groove (15). The telescopic groove (15) is in a circular groove shape and runs through one end surface of the connecting column (14).

7. The optical axis for a keyboard according to claim 1, characterized in that: The clamping blocks (16) are in two groups and act on the outer surface of the housing (1). The upper cover (2) is snap-fitted to the housing (1) through the clamping blocks (16).

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