Integrated self-lubricating magnetic shaft switch

Abstract

The utility model discloses and provides an integrated magnetic shaft shell, a structure capable of conveniently adding lubricating oil is designed on the magnetic shaft switch, and the integrated magnetic shaft switch with the self-lubricating function can be guaranteed to be lubricated after being used for a long time. The magnetic bearing comprises a shaft body, a magnet, an elastic body and a shell, the shaft body is provided with a plurality of first point oil holes and a plurality of oil groove openings, the first point oil holes are correspondingly communicated with the oil groove openings, the shell comprises a cover body and a base which are integrally formed in an injection molding mode, and the shaft body is matched in the shell in a floating mode through the elastic body. The magnet is arranged in a groove in the bottom of the shaft body in a limiting fit mode, the shell is provided with a plurality of lubricating oil channels, and the oil groove openings are arranged on the lubricating oil channels in a sliding fit mode. The magnetic shaft switch is applied to the technical field of magnetic shaft switches.

Description

Technical Field

[0001] The utility model is applied to the technical field of magnetic axis switches, and particularly relates to an integrated magnetic axis switch with self-lubrication. Background Art

[0002] At present, most of the magnetic axis switches on the market are assembled by shell separation. Separate assembly will lead to large shape and position tolerance of the magnetic axis switch, so that the central motion axis cannot be well matched and constrained, resulting in shaking or even key jamming, and prone to abnormal noise and noise during use. At the same time, the magnetic axis switches on the market do not have the function of later use and maintenance. Long-term use of the magnetic axis switch will lead to decreased lubrication ability, stiff pressing feel, and increased internal friction of the shaft body, affecting the user's feel. If an integrated magnetic axis shell can be designed, and the magnetic axis switch is designed with a structure that can easily add lubricating oil, an integrated self-lubricating magnetic axis switch that can ensure its lubrication for long-term use can solve the above problems well. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide an integrated magnetic shaft housing, and the magnetic shaft switch is designed with a structure that can conveniently add lubricating oil, so as to ensure lubrication of the integrated self-lubricating magnetic shaft switch during long-term use.

[0004] The technical solution adopted by the utility model is: the utility model includes a shaft body, a magnet, an elastomer and a shell, the shaft body is provided with a plurality of first-point oil holes and a plurality of oil groove openings, the plurality of first-point oil holes are correspondingly connected with the plurality of oil groove openings, the shell includes a cover body and a base integrally injection-molded, the shaft body is floatingly fitted in the shell through the elastomer, the magnet is limitedly fitted in a groove at the bottom of the shaft body, the shell is provided with a plurality of lubricating oil channels, and the oil groove openings are slidably fitted on the lubricating oil channels. It can be seen that the utility model integrally injection molds the cover body and the base into the shell, which not only improves the strength of the shell, but also avoids the form and position tolerance caused by matching. The first oil hole and the guide rail are provided on the shaft body to cooperate with the shaft body to form an oil inlet groove, so that the lubricating oil can enter the shell and the inside of the shaft body. At the same time, the oil groove mouth cooperates with the lubricating oil channel, so that the lubricating oil flows to the inner wall of the shell due to gravity, and also plays a lubricating role in the matching of the shell and the shaft body. The shaft body and the shell are floatingly matched through an elastic body. When pressed, the elastomer is squeezed and deformed, and when the pressure is released, the shaft body is reset.

[0005] Furthermore, arc shell walls are provided at both ends of the inner side of the shell, and limit blocks are provided on the arc shell walls, and the limit blocks are matched with the shaft body in a limiting manner.

[0006] Furthermore, the shaft body is also provided with second oil holes, the first oil holes are provided at four vertices of the upper surface of the shaft body, and the second oil holes are provided at both sides of the cross-shaped protrusion in the middle of the shaft body.

[0007] Furthermore, small hooks are provided on both sides of the shaft body, and slots that are mutually limited and matched with the small hooks are provided on both sides of the shell.

[0008] Furthermore, a plurality of guide rails are arranged on the inner side of the top corner of the shell, an oil collecting groove is arranged at the bottom of the top corner of the shell, and a plurality of lubricating oil passages are formed by the cooperation between the plurality of guide rails and the inner wall of the shell, and the lubricating oil passages are correspondingly connected with the oil collecting grooves.

[0009] Furthermore, a plurality of reinforcing ribs and a pair of light guide mirrors are arranged on the shell, and the pair of light guide mirrors are arranged on both sides of the shell.

[0010] Furthermore, the magnetic axis switch further includes a Hall sensor, and the Hall sensor is arranged on an external circuit board.

[0011] Furthermore, a guide post and a buckle are provided at the bottom of the shell, the guide post is limitedly matched with the plug-in hole on the external circuit board, and the buckle is limitedly matched with the external circuit board or the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded structural view of the utility model;

[0013] Figure 2 It is a structural sectional view of the utility model;

[0014] Figure 3 It is a structural view of the utility model;

[0015] Figure 4 is a structural view of the shaft body;

[0016] Figure 5 is a structural view of the housing. DETAILED DESCRIPTION

[0017] like Figures 1 to 5As shown, in this embodiment, the utility model includes a shaft body 1, a magnet 2, an elastomer 3 and a shell 4, the shaft body 1 is provided with a plurality of first point oil holes 10 and a plurality of oil groove openings 12, the plurality of first point oil holes 10 are correspondingly connected with the plurality of oil groove openings 12, the shell 4 includes an integrally injection-molded cover body and a base, the shaft body 1 is floatingly fitted in the shell 4 through the elastomer 3, the magnet 2 is limitedly fitted in the groove at the bottom of the shaft body 1, the shell 4 is provided with a plurality of lubricating oil passages 42, and the oil groove openings 12 are slidably fitted on the lubricating oil passages 42. It can be seen that the utility model integrally injection molds the cover body and the base into the shell 4, which not only improves the strength of the shell 4, but also avoids the form and position tolerance caused by the fit. The shaft body 1 is provided with the first oil hole 10 and the guide rail 41, which cooperates with the shaft body 1 to form an oil inlet groove 42. The lubricating oil is added from the first oil hole 10 and flows out from the oil groove port 12, so that the lubricating oil can enter the shell 4 and the inside of the shaft body 1. At the same time, the oil groove port 12 cooperates with the lubricating oil channel 42, so that the lubricating oil flows to the inner wall of the shell due to gravity, and also plays a lubricating role in the fit between the shell and the shaft body. The shaft body and the shell are floatingly matched through an elastic body. When pressed, the elastic body is squeezed and deformed, and when the pressure is released, the shaft body is reset.

[0018] like Figure 5 As shown, in this embodiment, arc shell walls are provided at both ends of the inner side of the housing 4, and limit blocks 45 are provided on the arc shell walls, and the limit blocks 45 are limitedly matched with the shaft body 1. It can be seen that the matching relationship between the housing 4 and the shaft body 1 is enhanced by designing the arc shell walls inside the housing 4.

[0019] like Figure 3 to Figure 4 As shown, in this embodiment, the shaft body 1 is further provided with second oil holes 11, the first oil holes 10 are provided at the four vertices of the upper surface of the shaft body 1, and the second oil holes 11 are provided on both sides of the cross-shaped protrusion in the middle of the shaft body 1. It can be seen that the first oil holes 10 are provided to achieve lubrication of the shaft body 1 and the housing 4, and the elastic body 3 is located below the second oil holes 11. Therefore, the lubricating oil is added through the second oil holes 11 and drips onto the elastic body 3 under the action of gravity, thereby lubricating the elastic body 3.

[0020] like Figures 4 to 5 As shown, in this embodiment, small hooks 13 are provided on both sides of the shaft body 1, and slots 48 are provided on both sides of the housing 4 for mutually limiting cooperation with the small hooks 13. It can be seen that the shaft body 1 is provided with small hooks 13 to strengthen the limiting cooperation with the housing 4.

[0021] like Figures 2 to 5As shown, in this embodiment, a plurality of guide rails 41 are provided at the inner side of the top corner of the housing 4, an oil collecting groove 40 is provided at the bottom of the top corner of the housing 4, a plurality of lubricating oil passages are formed by the cooperation of the plurality of guide rails 41 and the inner wall of the housing 4, and the lubricating oil passages 42 are correspondingly connected to the oil collecting groove 40. It can be seen that the oil collecting groove is designed at the bottom of the housing to store the lubricating oil flowing downstream in the oil collecting groove, and when the shaft body is pressed to move up and down during use, the lubricating oil in the oil collecting groove will move up and down along the lubricating oil passage, so that the lubricating oil can be used multiple times to achieve the effect of long-term automatic lubrication.

[0022] like Figure 5 As shown, in this embodiment, a plurality of reinforcing ribs 43 and a pair of light guide mirrors 44 are provided on the housing 4, and the pair of light guide mirrors 44 are provided on both sides of the housing 4. It can be seen that the plurality of reinforcing ribs 43 are provided to enhance the structural strength of the housing 4, and the pair of light guide mirrors 44 are provided to effectively enhance the light guiding property of the magnetic axis switch, so that the RBG light provided on the external circuit board is more concentrated and brighter when passing through the magnetic axis switch, which can significantly improve the overall RGB lighting effect of the keyboard and enhance the user experience.

[0023] like Figures 2 to 3 As shown, in this embodiment, the magnetic axis switch further includes a Hall sensor, which is disposed on an external circuit board. Because the operation of the magnetic axis switch requires the Hall sensor to be triggered, the Hall sensor is disposed on the circuit board and transmits electrical signals through the external circuit board.

[0024] like Figures 2 to 3 As shown, in this embodiment, a guide column 46 and a buckle 47 are provided at the bottom of the housing 4. The guide column 46 is limitedly matched with the plug-in hole on the external circuit board, and the buckle 47 is limitedly matched with the external circuit board or the fixed plate. It can be seen that when the magnetic axis switch is slidably matched with the external circuit board, the guide column 46 plays a role in positioning and guiding the magnetic axis switch, and the buckle 47 is limitedly matched with the external circuit board or the fixed plate.

[0025] In this embodiment, the working principle of the utility model is as follows:

[0026] like Figures 1 to 5As shown, when the magnetic axis switch is used for a long time, resulting in lack of lubrication and a difference in feel, a small amount of lubricating oil can be added to the first oil hole 10 of the shaft body 1, and then the shaft body 1 is pressed multiple times to move, which will cause the lubricating oil in the oil collecting groove 42 to move up and down along the inner wall of the shell 4, so that the lubricating oil is evenly distributed in the gap between the shell 4 and the shaft body 1, thereby achieving a self-lubricating effect. Lubricating oil can be conveniently added to the shell 4 for maintenance without plugging in or out the magnetic axis, thereby ensuring the service life and feel of the magnetic axis switch. A small amount of lubricating oil can be added to the second oil hole 11, which can also lubricate and maintain the elastomer 3, thereby reducing the noise generated by the elastomer 3 during the use of the magnetic axis.

[0027] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. An integrated self-lubricating magnetic shaft switch, comprising a shaft (1), a magnet (2), an elastic body (3) and a housing (4), characterized in that: The shaft body (1) is provided with a plurality of first point oil holes (10) and a plurality of oil groove openings (12), the plurality of first point oil holes (10) being correspondingly connected to the plurality of oil groove openings (12), the housing (4) comprising a cover body and a base formed by integral injection molding, the shaft body (1) being floatingly fitted in the housing body (4) via the elastic body (3), the magnet (2) being limitedly fitted in a groove at the bottom of the shaft body (1), the housing (4) being provided with a plurality of lubricating oil passages (42), the oil groove openings (12) being fitted on the lubricating oil passages (42).

2. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: Arc shell walls are provided at both ends of the inner side of the shell (4), and limit blocks (45) are provided on the arc shell walls. The limit blocks (45) are matched with the shaft body (1) in a limit position.

3. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: The shaft body (1) is also provided with second oil holes (11), the first oil holes (10) being arranged at four vertex corners of the upper surface of the shaft body (1), and the second oil holes (11) being arranged on both sides of a cross-shaped protrusion in the middle of the shaft body (1).

4. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: Small hooks (13) are provided on both sides of the shaft body (1), and slots (48) that cooperate with the small hooks (13) to limit position are provided on both sides of the housing (4).

5. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: A plurality of guide rails (41) are provided at the inner side of the top corner of the housing (4); an oil collecting groove (40) is provided at the bottom of the top corner of the housing (4); the plurality of lubricating oil passages are formed by the cooperation of the plurality of guide rails (41) and the inner wall of the housing (4); and the lubricating oil passages (42) are correspondingly connected to the oil collecting groove (40).

6. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: A plurality of reinforcing ribs (43) and a pair of light guide mirrors (44) are provided on the shell (4), and the pair of light guide mirrors (44) are provided on both sides of the shell (4).

7. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: The magnetic axis switch further includes a Hall sensor, which is disposed on an external circuit board, and the magnet cooperates with the Hall sensor.

8. The integrated self-lubricating magnetic shaft switch according to claim 1, characterized in that: A guide column (46) and a buckle (47) are provided at the bottom of the housing (4); the guide column (46) is in position-limiting cooperation with a plug-in hole on an external circuit board, and the buckle (47) is in position-limiting cooperation with an external circuit board or a fixing plate.

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