Physical pressing tentacle

Abstract

The utility model provides a physical pressing tentacle, which solves the problems of tentacle pressing torque control and the like and comprises a spring ejector pin, a touch pen point is connected to the end of the spring ejector pin, a sensing element is mounted between the touch pen point and the spring ejector pin, and the spring ejector pin is mounted in a lifting sleeve in a sliding manner. A damping element and a reset assembly are installed between the spring ejector pin and the lifting sleeve, and the touch pen point is provided with a modular assembly assembly. The utility model has the advantages of stable structure, good safety and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical tentacles, and in particular relates to a physical pressing tentacle. Background Art

[0002] When a finger touches the screen, a coupling capacitor is formed between the human body's electric field and the touch screen surface. For high-frequency current, the capacitor is a direct conductor, so the finger draws a very small current from the contact point. This current flows out of the screen, and the mobile phone controller determines the precise position of the contact point by calculating the current ratio. Although a complete capacitive stylus can effectively and accurately click the screen, the physical tentacles are directly driven by the motor, and it is difficult to control the force, which can easily damage the screen. In addition, the capacitive stylus is large in size and needs regular maintenance and storage to work properly without failure.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a self-generating capacitor pen [201910344561.6], which includes a pen head, a pen holder, a cylindrical pen tail, and a control circuit arranged in the pen holder; it also includes a self-generating device and a power storage device, the self-generating device includes a spiral coil A, a spiral coil B, a gyroscope permanent magnet, and a rotating shaft rod, and the power storage device includes a rectifier filter circuit and an energy storage battery.

[0004] The above solution solves the problem of internal power storage of the capacitive stylus to a certain extent, but the solution still has many shortcomings, such as poor force control when pressing and easy damage to the screen. Summary of the invention

[0005] The purpose of the utility model is to provide a physical pressing tentacle with reasonable design and good pressing force control effect in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a physical pressing tentacle, including a spring ejector pin, a stylus head is connected to the end of the spring ejector pin, a sensor element is installed between the stylus head and the spring ejector pin, the spring ejector pin is slidably installed in a lifting sleeve, a damping element and a reset component are installed between the spring ejector pin and the lifting sleeve, and the stylus head is equipped with a modular assembly component.

[0007] In the above-mentioned physical pressing tentacle, the spring ejector includes a pressing cylinder, a pressing head is telescopically installed at the end of the pressing cylinder, and a pressing spring pressed against the pressing head is installed inside the pressing cylinder.

[0008] In the above-mentioned physical pressing tentacle, the pressing head is connected to a wiring tube, which extends along the central axis direction of the pressing cylinder and passes through the pressing cylinder and the lifting sleeve.

[0009] In the above-mentioned physical pressing tentacle, a fixing platform is arranged outside the lifting sleeve, the fixing platform has a T-shaped horizontal section and is provided with a plurality of mounting holes, and a limiting component is arranged between the lifting sleeve and the spring ejector pin.

[0010] In the above-mentioned physical pressing tentacle, the limit assembly includes a limit groove arranged in a centrally symmetrical manner relative to the lifting sleeve, the spring ejector has a limit block corresponding to the limit groove one by one and slidably connected, the limit groove extends to the end of the lifting sleeve, and the end of the lifting sleeve is threadedly connected with a limit cover that closes the limit groove port.

[0011] In the above-mentioned physical pressing tentacle, the damping element is a viscous damper, the viscous damper is fixedly connected to the lifting sleeve, and the telescopic end of the viscous damper is fixedly connected to the spring ejector pin.

[0012] In the above-mentioned physical pressing tentacle, the reset component includes an electromagnetic push rod installed on the lifting sleeve, and the telescopic end of the electromagnetic push rod is connected to the spring ejector pin.

[0013] In the above-mentioned physical pressing tentacle, the stylus head includes a sheet-shaped pressing portion, a clamping portion protruding relative to the pressing portion is provided on the pressing portion, and the modular assembly component is arranged between the clamping portion and the spring ejector pin.

[0014] In the above-mentioned physical pressing tentacle, the modular assembly component includes a clamping block installed at the end of the spring pin, a clamping groove for inserting the clamping part is opened at the lower end of the clamping block, and a clamping knob is threadedly connected to the side of the clamping block to press against the clamping part.

[0015] In the above-mentioned physical pressing tentacle, the sensing element is a pressure sensor or a distance sensor.

[0016] Compared with the existing technology, the advantages of the utility model are: a damping element is arranged between the spring ejector pin and the lifting sleeve to realize double buffering of the stylus tip pressing, thereby avoiding damage to the screen due to excessive pressing torque; axial and circumferential limiting are achieved between the lifting sleeve and the spring ejector pin through a limiting component to ensure its movement stability; the stylus tip can be flexibly replaced through modular assembly components to adapt to the pressing and touch requirements of different screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural sectional view of the utility model;

[0019] Figure 3 It is a partial cross-sectional view of the utility model;

[0020] Figure 4 It is another partial cross-sectional view of the utility model;

[0021] In the figure, a spring ejector pin 1, a pressing cylinder 11, a pressing head 12, a pressing spring 13, a wiring tube 14, a stylus tip 2, a pressing portion 21, a clamping portion 22, a lifting sleeve 3, a fixing platform 31, a mounting hole 32, a limiting groove 33, a limiting block 34, a limiting cover 35, a damping element 4, a viscous damper 41, a reset assembly 5, an electromagnetic push rod 51, a modular assembly assembly 6, a clamping block 61, a clamping groove 62, and a clamping knob 63. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a physical pressing tentacle includes a spring pin 1, a stylus head 2 is connected to the telescopic end of the spring pin 1, a sensor element is installed between the stylus head 2 and the spring pin 1 to monitor the pressing torque in real time, the spring pin 1 is slidably installed in the lifting sleeve 3, a damping element 4 and a reset component 5 are installed between the spring pin 1 and the lifting sleeve 3, the damping element 4 cooperates with the elastic element inside the spring pin 1 to realize double buffering, when the pressing torque is too large, the spring pin 1 contracts relative to the lifting sleeve 3 and leaves room for the stylus head 2 to move, the stylus head 2 is equipped with a modular assembly component 6, and the stylus head 2 of appropriate specifications is selected according to actual needs.

[0024] Specifically, similar to a conventional spring telescopic structure, the spring ejector pin 1 in the present application comprises a pushing cylinder 11, at the end of which a pushing head 12 is telescopically installed, and inside the pushing cylinder 11 is installed a pushing spring 13 which is pressed tightly against the pushing head 12. By replacing the pushing spring 13 with different elastic moduli, the pressing torque of the pushing head 12 and the stylus tip 2 can be adjusted.

[0025] In order to ensure the signal transmission of the sensor element, the pressing head 12 is connected to a wiring tube 14 for the extension of the wire. The wiring tube 14 extends along the central axis direction of the pressing cylinder 11 and passes through the pressing cylinder 11 and the lifting sleeve 3. The sensor element and the corresponding mechanical arm and other structures are feedback-adjusted to adjust the pressing distance of the pressing tentacles.

[0026] Furthermore, in order to facilitate the assembly and fixation of the lifting sleeve 3, a fixing platform 31 is provided on its outer side. The fixing platform 31 has a T-shaped horizontal section and is provided with a plurality of mounting holes 32. The mounting holes 32 are assembled and fixed by screws. A limiting assembly is provided between the lifting sleeve 3 and the spring ejector pin 1 to limit the movement trajectory of the spring ejector pin 1.

[0027] Furthermore, the limiting assembly includes a limiting groove 33 arranged in a central symmetric manner relative to the lifting sleeve 3, the spring ejector pin 1 has a limiting block 34 corresponding to the limiting groove 33 and slidably connected thereto, the limiting groove 33 extends to the end of the lifting sleeve 3, and the end of the lifting sleeve 3 is threadedly connected with a limiting cover 35 that closes the end of the limiting groove 33. During assembly, the spring ejector pin 1 is inserted from the end of the lifting sleeve 3, and after the limiting groove 33 and the limiting block 34 are slidably connected, the end of the limiting groove 33 is closed by using the limiting cover 35.

[0028] In addition, the damping element 4 is a viscous damper 41, which is fixedly connected to the lifting sleeve 3, and the telescopic end of the viscous damper 41 is fixedly connected to the spring ejector pin 1. The sliding resistance of the spring ejector pin 1 relative to the lifting sleeve 3 remains unchanged.

[0029] At the same time, after the spring ejector pin 1 has completed its contraction relative to the lifting sleeve 3, it needs to be automatically reset for the next cache contraction. The reset component 5 includes an electromagnetic push rod installed on the lifting sleeve 3. The telescopic end of the electromagnetic push rod 51 is connected to the spring ejector pin 1. The electromagnetic push rod 51 cooperates with the sensor element. After the induced pressure disappears, the electromagnetic push rod 51 starts to reset the spring ejector pin 1.

[0030] It can be seen that the stylus tip 2 includes a sheet-shaped pressing portion 21, on which a clamping portion 22 protruding relative to the pressing portion 21 is provided, and the modular assembly component 6 is provided between the clamping portion 22 and the spring ejector pin 1. The pressing portion 21 realizes the dispersion of the pressing torque, and the flexibility is selected to prevent the stylus tip 2 from scratching the screen.

[0031] Obviously, the modular assembly component 6 includes a clamping block 61 installed at the end of the spring ejector pin 1, a clamping groove 62 for inserting the clamping portion 22 is formed at the lower end of the clamping block 61, and a clamping knob 63 is threadedly connected to the side of the clamping block 61 and pressed against the clamping portion 22. The stylus tip 2 can be clamped and fixed by manually rotating the clamping knob 63, and the sensor element is arranged at the lower end of the stylus tip 2.

[0032] Preferably, the sensing element is a pressure sensor or a distance sensor. If a pressure sensor is selected, it can be directly fixed on the stylus head 2 for contact detection, and if a distance sensor is selected, non-contact sensing can be performed.

[0033] To sum up, the principle of this embodiment is that the spring ejector pin 1 is slidably installed in the lifting sleeve 3 and rises and falls with the lifting sleeve 3. During the lifting process, the stylus head 2 connected to the end of the spring ejector pin 1 is also pressed down synchronously, and the elastic element and the damping element 4 therein realize double buffering, thereby limiting the pressing torque.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0035] Although the terms such as spring ejector pin 1, ejector cylinder 11, ejector head 12, ejector spring 13, wiring tube 14, stylus tip 2, pressing portion 21, clamping portion 22, lifting sleeve 3, fixing platform 31, mounting hole 32, limiting groove 33, limiting block 34, limiting cover 35, damping element 4, viscous damper 41, reset assembly 5, electromagnetic push rod 51, modular assembly assembly 6, clamping block 61, clamping groove 62, clamping knob 63 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A physical pressing tentacle, comprising a spring ejector pin (1), wherein the end of the spring ejector pin (1) is connected to a stylus head (2), and a sensor element is installed between the stylus head (2) and the spring ejector pin (1), characterized in that: The spring ejector pin (1) is slidably mounted in a lifting sleeve (3); a damping element (4) and a reset assembly (5) are mounted between the spring ejector pin (1) and the lifting sleeve (3); and the stylus tip (2) is equipped with a modular assembly assembly (6).

2. A physical pressing tentacle according to claim 1, characterized in that: The spring ejector (1) comprises a push-pressing cylinder (11), a push-pressing head (12) is telescopically mounted at the end of the push-pressing cylinder (11), and a push-pressing spring (13) is mounted inside the push-pressing cylinder (11) and is pressed tightly against the push-pressing head (12).

3. A physical pressing tentacle according to claim 2, characterized in that: The pressing head (12) is connected to a wiring tube (14), and the wiring tube (14) extends along the central axis direction of the pressing cylinder (11) and passes through the pressing cylinder (11) and the lifting sleeve (3).

4. The physical pressing tentacle according to claim 1, characterized in that: A fixing platform (31) is arranged outside the lifting sleeve (3), the fixing platform (31) has a T-shaped horizontal section and is provided with a plurality of mounting holes (32), and a limiting component is arranged between the lifting sleeve (3) and the spring ejector pin (1).

5. A physical pressing tentacle according to claim 4, characterized in that: The limiting assembly comprises a limiting groove (33) which is centrally symmetrically arranged relative to the lifting sleeve (3); the spring ejector pin (1) has a limiting block (34) which corresponds to the limiting groove (33) one by one and is slidably connected thereto; the limiting groove (33) extends to the end of the lifting sleeve (3); and the end of the lifting sleeve (3) is threadedly connected with a limiting cover (35) which closes the end of the limiting groove (33).

6. The physical pressing tentacle according to claim 1, characterized in that: The damping element (4) is a viscous damper (41), the viscous damper (41) is fixedly connected to the lifting sleeve (3), and the telescopic end of the viscous damper (41) is fixedly connected to the spring ejector pin (1).

7. The physical pressing tentacle according to claim 1, characterized in that: The reset assembly (5) comprises an electromagnetic push rod installed on the lifting sleeve (3), and the telescopic end of the electromagnetic push rod (51) is connected to the spring ejector pin (1).

8. The physical pressing tentacle according to claim 1, characterized in that: The stylus tip (2) comprises a sheet-shaped pressing portion (21), the pressing portion (21) is provided with a clamping portion (22) protruding relative to the pressing portion, and the modular assembly component (6) is arranged between the clamping portion (22) and the spring ejector pin (1).

9. The physical pressing tentacle according to claim 8, characterized in that: The modular assembly component (6) comprises a clamping block (61) installed at the end of the spring ejector pin (1), the lower end of the clamping block (61) is provided with a clamping groove (62) for inserting the clamping part (22), and the side of the clamping block (61) is threadedly connected with a clamping knob (63) that presses against the clamping part (22).

10. The physical pressing tentacle according to claim 1, characterized in that: The sensing element is a pressure sensor or a distance sensor.

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