A polar axis

Abstract

The utility model relates to the structure technical field of key switch, especially a kind of pole electric shaft, including the coil being set to the pole electric shaft outside, still including shell, metal stick, connecting block and control key;Metal stick is built-in in shell, and reciprocating motion in vertical direction is done;Connecting block is built-in in shell, and connecting block and the end portion plug-in fit cooperation of one end of metal stick;Control key part protrudes shell setting, and the part of control key built-in in shell and connecting block plug-in fit cooperation;Control key is under the action of external force and moves down, drives connecting block and metal stick to move down and cut the control signal after producing external magnetic field.

Description

Technical Field

[0001] This utility model relates to the field of structural technology of push-button switches, and in particular to a polar shaft. Background Technology

[0002] A keyboard is a device for inputting instructions and data to operate computer equipment. It also refers to a set of function keys arranged by a system to operate a machine or device.

[0003] Based on their working principles, keyboards can be categorized as follows: 1) Mechanical keyboards: Mechanical keyboards use a metal contact switch-like mechanism, working by making contacts open or close. They are characterized by simple manufacturing processes, high noise levels, and easy maintenance. 2) Plastic membrane keyboards: These keyboards have four internal layers, achieving zero mechanical wear. Their advantages include low price, low noise, and low cost. 3) Magnetic switch keyboards: Compared to mechanical switches, these offer smoother typing with lower actuation force, resulting in a noticeable lack of lag and rapid response. Magnetic switch keyboards have gradually evolved into inductive switch keyboards. Inductive switch keyboards feature an aluminum mounting plate, silicone padding for shock absorption, and a fuller padding than typical magnetic switch keyboards.

[0004] Existing inductive shaft push button switches use a structure that integrates a metal rod with the push button switch. However, this method is prone to horizontal offset force during button pressing, which can cause the metal rod to wobble and affect the sensitivity and accuracy of the inductive shaft push button switch.

[0005] Therefore, this utility model proposes a polar electric axis. Utility Model Content

[0006] The present invention provides a polar shaft, which mainly solves the problem that the existing inductive shaft push-button switches use a structure in which a metal rod is integrated with the push-button switch. However, this method is prone to horizontal offset force during the pressing of the button, which causes the metal rod to wobble and affects the sensitivity and accuracy of the inductive shaft push-button switch.

[0007] This utility model proposes a polar shaft, including a coil disposed outside the polar shaft, and further comprising:

[0008] case;

[0009] A metal rod is built into the housing and reciprocates in the vertical direction;

[0010] A connecting block is built into the housing, and the connecting block is inserted into one end of the metal rod;

[0011] The control key is partially protruding from the housing, and the portion of the control key built into the housing is inserted into the connecting block.

[0012] The control key moves downward under the action of external force, causing the connecting block and metal rod to move downward and cut the magnetic field generated by the coil, thus generating a control signal.

[0013] Preferably, a blind hole is formed on the end of the connecting block facing the metal rod, and the inner diameter of the blind hole is equal to the outer diameter of the current end of the metal rod; the blind hole and the end of the metal rod are mutually exempted.

[0014] Preferably, the housing comprises:

[0015] The top cover has a first through hole for the end of the control key to extend and retract;

[0016] The bottom shell is detachably connected to the top cover, and the bottom shell has a second through hole for the end of the metal rod away from the connecting block to extend and retract; the first through hole and the second through hole are coaxially arranged.

[0017] Preferably, it further includes:

[0018] A spring is sleeved on the connecting block and the metal rod; one end of the spring abuts against the end of the connecting block away from the metal rod, and the other end abuts against the inner bottom surface of the bottom shell;

[0019] When the control key moves the connecting block and the metal rod downwards, the spring is compressed and forms a reverse pushing motion tendency of the connecting block.

[0020] Preferably, the bottom shell comprises:

[0021] A limiting groove extends inward from the second through hole; the inner diameter of the limiting groove is larger than the outer diameter of the metal rod and part of the connecting block, allowing part of the connecting block and the metal rod to extend and retract along the length of the limiting groove; the inner diameter of the limiting groove is smaller than the inner diameter of the spring, so that the spring is sleeved outside the limiting groove.

[0022] Preferably, the outer sidewall of the control key protrudes to form a limiting block, and the two ends of the limiting block are respectively disposed on the end edge of the control key facing the metal rod and on the middle sidewall of the control key;

[0023] The outer edge of the limiting block is larger than the inner diameter of the first through hole.

[0024] Preferably, a stabilizing element is formed on the center protrusion of the end face of the control key that abuts against the connecting block, and the stabilizing element is spherically shaped.

[0025] Preferably, the end of the metal rod protruding from the connecting block is truncated into a frustum shape, and the end face of the metal rod away from the connecting block is smaller than the end face of the metal rod facing the connecting block.

[0026] Preferably, the bottom shell has a support foot protruding from the end face away from the top cover;

[0027] There are two support feet, which are distributed in parallel along the two ends of the central axis of the bottom shell.

[0028] Preferably, the downward movement of the metal rod produces a vertical component on the magnetic field lines, or the metal rod perpendicularly cuts the magnetic field lines.

[0029] As can be seen from the above, the following beneficial effects can be obtained by applying the technical solution provided by this utility model:

[0030] First, the assembly method of the electrode shaft proposed by this utility model, which uses control keys, connecting blocks and metal rods to be assembled from top to bottom and from outside to inside, allows external forces to be transmitted along the axial direction, while the metal rod only makes reciprocating motion in the vertical direction, thus avoiding the problem of false triggering of electrical signals or reduced sensing sensitivity caused by the shaking of the metal rod.

[0031] Secondly, the shape design of the blind hole on the connecting block of the electrode shaft proposed in this utility model further improves the consistency of the movement state of the connecting block and the metal rod, ensuring that the metal rod only moves in the vertical direction under the action of external force, thus ensuring the accuracy of the electrode shaft.

[0032] Third, the electrode shaft proposed in this utility model has a first through hole and a second through hole, which allows the control key and the metal rod to protrude from the housing. This reduces the height of the electrode shaft while maintaining its normal operation, making the electrode shaft more adaptable.

[0033] Fourth, the electrode shaft proposed in this utility model is equipped with a spring. After the external force is removed, the control key, connecting block and metal rod can be restored to their initial positions by the elastic force of the spring, so as to realize the automatic reset of the electrode shaft.

[0034] Fifth, the design of the limiting groove on the electrode shaft proposed in this utility model limits the movement path of the metal rod and the connecting block, and at the same time limits the sleeve structure of the spring. Under the premise of ensuring the normal detection process of the electrode shaft, it also realizes the automatic rebound stability of the electrode shaft.

[0035] Sixth, the present invention proposes a stabilizing component on the polar shaft, which makes the contact between the control key and the connecting block a spherical contact. If the direction of the external force on the control key is not vertical, the stabilizing component can still ensure its pushing effect on the connecting block and the metal rod in the vertical direction when the control key is offset or rotated. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is an exploded view of the polar electric axis in an embodiment of this utility model;

[0038] Figure 2 This is a cross-sectional view of the polar axis in an embodiment of this utility model. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0040] Existing inductive shaft push button switches use a structure that integrates a metal rod with the push button switch. However, this method is prone to horizontal offset force during button pressing, which can cause the metal rod to wobble and affect the sensitivity and accuracy of the inductive shaft push button switch.

[0041] like Figure 1 and Figure 2 As shown, in order to solve the above problems, this embodiment proposes a polar shaft, including a housing, a metal rod 30, a connecting block 20, and a control key 10; the metal rod 30 is built into the housing and performs reciprocating motion in the vertical direction; the connecting block 20 is built into the housing, and one end of the connecting block 20 is inserted into the metal rod 30; the control key 10 is partially protruding from the housing, and the part of the control key 10 built into the housing is inserted into the connecting block 20; the control key 10 moves downward under the action of external force, causing the connecting block 20 and the metal rod 30 to move downward and cut the external magnetic field to generate a control signal.

[0042] Preferably, in this embodiment, a circuit board is provided on the downward movement path of the metal rod 30 on the polar axis, and a coil is provided on the circuit board. During the downward movement, the metal rod 30 cuts the magnetic field generated by the coil, generating an electrical signal based on Faraday's law of electromagnetic induction, which is then output outward from the polar axis. It is not limited to the fact that the vertical movement of the metal rod 30 cuts perpendicularly to the magnetic field lines, or that there is a perpendicular component between the vertical movement of the metal rod 30 and the magnetic field lines.

[0043] Preferably, in this embodiment, the metal rod 30, the connecting block 20, and the control key 10 are arranged in a bottom-up and inside-out plug-in structure with the center aligned.

[0044] Preferably, in this embodiment, the part of the control key 10 protruding from the housing is a cylindrical structure, and the housing has an overall square structure.

[0045] In this embodiment, the control key 10, the connecting block 20, and the metal rod 30 achieve multi-level force transmission and are connected in pairs. When receiving external forces in a non-vertical direction, the vertical movement of the metal rod 30 can still be guaranteed, the horizontal sway of the metal rod 30 is reduced, and the sensitivity and accuracy of the polar axis are ensured.

[0046] More specifically, a blind hole is formed on the end of the connecting block 20 facing the metal rod 30, and the inner diameter of the blind hole is equal to the outer diameter of the current end of the metal rod 30; the blind hole and the end of the metal rod 30 are mutually ventilated.

[0047] Preferably, in this embodiment, the end of the metal rod 30 facing the connecting block 20 is a protrusion with an outer diameter smaller than that of the middle section of the metal rod 30, and the protrusion is cylindrical in shape; the blind hole is cylindrical and is provided to avoid gaps between it and the protrusion.

[0048] Preferably, in this embodiment, the end of the connecting block 20 away from the metal rod 30 has an outwardly flared edge, the depth of its blind hole is less than the height of the main body on the connecting block 20, and the main body of the connecting block 20 also adopts a cylindrical structure.

[0049] Preferably, in this embodiment, the metal rod 30 is an aluminum rod.

[0050] In this embodiment, the blind hole structure and the end structure of the metal rod 30, which are mutually designed to avoid gaps, can ensure the assembly stability of the connecting block 20 and the metal rod 30, thereby ensuring their synchronous movement.

[0051] More specifically, the housing includes a detachably connected top cover 41 and a bottom cover 42; the top cover 41 has a first through hole for the end of the control key 10 to extend and retract; the bottom cover 42 has a second through hole for the end of the metal rod 30 away from the connecting block 20 to extend and retract; the first through hole and the second through hole are axially aligned.

[0052] Preferably, in this embodiment, the bottom shell 42 may not be provided with a second through hole, so that the metal rod 30 can only move within the shell, but this method will increase the overall thickness of the polar shaft.

[0053] Preferably, in this embodiment, the inner diameter of the first through hole is equal to the outer diameter of the end of the control key 10; the inner diameter of the second through hole is greater than the outer diameter of the middle section of the metal rod 30. It is not limited to the shape of the protruding connecting block 20 on the metal rod 30 being frustum-shaped, and the end face away from the connecting block 20 being the smaller end face, that is, the outer diameter of the middle section of the metal rod 30 is its maximum outer diameter.

[0054] Preferably, in this embodiment, a limiting groove 421 extends from the second through hole into the interior of the bottom shell 42, and the depth direction of the limiting groove 421 is perpendicular to the end face of the bottom shell 42. Not limited to, the inner diameter of the limiting groove 421 is larger than the outer diameter of the end of the connecting block 20 facing the metal rod 30, and larger than the outer diameter of the metal rod 30.

[0055] In this embodiment, the first and second through holes provide space for the control key 10 and the metal rod 30 to move. While ensuring that the polar shaft can be used normally, the thickness of the polar shaft is reduced, and the range and direction of the external force are limited, which can effectively improve the sensing accuracy of the polar shaft.

[0056] More specifically, it also includes a spring 50 sleeved on the connecting block 20 and the metal rod 30; one end of the spring 50 abuts against the edge of the connecting block 20 away from the metal rod 30, and the other end abuts against the inner bottom surface of the bottom shell 42; when the control key 10 drives the connecting block 20 and the metal rod 30 to move downward, the spring 50 is compressed and forms a reverse pushing motion tendency of the connecting block 20.

[0057] Preferably, in this embodiment, the inner diameter of the spring 50 is larger than the outer diameter of the end of the connecting block 20 that is inserted into the metal rod 30, but smaller than the outer diameter of the edge of the connecting block 20 that is far from the metal rod 30. That is, in this embodiment, the spring 50 deforms when the connecting block 20 moves downward.

[0058] Preferably, in this embodiment, the inner diameter of the spring 50 is larger than the outer diameter of the limiting groove 421. That is, when the metal rod 30 is placed in the limiting groove 421 and moves along the depth direction of the limiting groove 421, the spring 50 is sleeved in the limiting groove 421 and generates a high degree of compression outside the limiting groove 421. It is not limited to the inner diameter of the spring 50 being exactly equal to the outer diameter of the limiting groove 421, ensuring that the spring 50 only experiences vertical elongation and compression, and there is no horizontal swaying.

[0059] In this embodiment, the spring 50 ensures that when the external force is removed, the connecting block 20, the metal rod 30, and the control key are reset, so as to ensure the formation and transmission of the control signal and the subsequent triggering of the control signal.

[0060] More specifically, the outer side wall of the control key 10 protrudes to form a limiting block, and the two ends of the limiting block are respectively located on the end edge of the control key facing the metal rod 30 and on the middle side wall of the control key; the edge of the limiting block is larger than the inner diameter of the first through hole.

[0061] Preferably, in this embodiment, the outer contour of the limiting block is square and the first through hole is circular. Therefore, the limiting block places the control key 10 at the set height inside the housing, thus limiting the lifting range of the control key 10.

[0062] In this embodiment, the limit of external force is when the control key 10 is completely submerged in the housing, and the limit of spring 50 is when the limiting block abuts against the inner top surface of the housing. The above two positions limit the range of movement of the polar shaft, effectively ensuring the normal structural integrity of the polar shaft.

[0063] More specifically, a stabilizing element 12 is formed on the center protrusion of the end face where the control key 10 abuts against the connecting block 20, and the stabilizing element 12 is spherically shaped.

[0064] In this embodiment, the stabilizing component 12 can effectively ensure the direction of force transmission between the control key 10 and the connecting block 20, and reduce the horizontal shaking of the control key 10 transmitted to the connecting block 20.

[0065] More specifically, the end face of the bottom shell 42 away from the top cover 41 also has a protrusion forming a support foot 422; there are two support feet 422, which are arranged in parallel and distributed at both ends of the central axis of the bottom shell 42.

[0066] In summary, this embodiment proposes a polar electric shaft. By sequentially setting control keys, connecting blocks, and metal rods, the direction of movement of the metal rod on the polar electric shaft is effectively guaranteed. Furthermore, by setting a reasonable magnetic field, the movement of the metal rod effectively cuts magnetic field lines and generates control signals, thus completing the signal generation and transmission process of the polar electric shaft.

[0067] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A polar shaft, comprising a coil disposed outside the polar shaft, characterized in that, Also includes: case; A metal rod is built into the housing and reciprocates in the vertical direction; A connecting block is built into the housing, and the connecting block is inserted into one end of the metal rod; The control key is partially protruding from the housing, and the portion of the control key built into the housing is inserted into the connecting block. The control key moves downward under the action of external force, causing the connecting block and metal rod to move downward and cut the magnetic field generated by the coil, thus generating a control signal.

2. The electric polarity shaft according to claim 1, characterized in that: A blind hole is formed on the end of the connecting block facing the metal rod, and the inner diameter of the blind hole is equal to the outer diameter of the current end of the metal rod; the blind hole and the end of the metal rod are mutually exempted.

3. A polar shaft according to claim 1 or 2, characterized in that, The housing includes: The top cover has a first through hole for the end of the control key to extend and retract; The bottom shell is detachably connected to the top cover, and the bottom shell has a second through hole for the end of the metal rod away from the connecting block to extend and retract; the first through hole and the second through hole are aligned with each other on the axis.

4. A polar shaft according to claim 3, characterized in that, Also includes: A spring is sleeved on the connecting block and the metal rod; one end of the spring abuts against the end of the connecting block away from the metal rod, and the other end abuts against the inner bottom surface of the bottom shell. When the control key moves the connecting block and the metal rod downwards, the spring is compressed and forms a reverse pushing motion tendency of the connecting block.

5. A polar shaft according to claim 4, characterized in that, The bottom shell includes: A limiting groove extends inward from the second through hole; the inner diameter of the limiting groove is larger than the outer diameter of the metal rod and part of the connecting block, allowing part of the connecting block and the metal rod to extend and retract along the length of the limiting groove; the inner diameter of the limiting groove is smaller than the inner diameter of the spring, so that the spring is sleeved outside the limiting groove.

6. A polar shaft according to claim 5, characterized in that: The outer side wall of the control key protrudes to form a limiting block, and the two ends of the limiting block are respectively disposed on the end edge of the control key facing the metal rod and on the middle side wall of the control key. The outer edge of the limiting block is larger than the inner diameter of the first through hole.

7. A polar shaft according to claim 6, characterized in that: The control key has a stabilizing component protruding from the center of the end face that abuts against the connecting block, and the stabilizing component is spherically shaped.

8. A polar shaft according to claim 7, characterized in that: The metal rod protrudes from the end of the connecting block in a frustum shape, and the end face of the metal rod away from the connecting block is smaller than the end face of the metal rod facing the connecting block.

9. A polar shaft according to claim 8, characterized in that: The bottom shell has a support foot protruding from the end face away from the top cover; There are two support feet, which are distributed in parallel along the two ends of the central axis of the bottom shell.

10. A polar shaft according to claim 1, characterized in that: The downward movement of the metal rod produces a vertical component on the magnetic field lines, or the metal rod perpendicularly cuts the magnetic field lines.

Images