CN216817363U - Encoder assembly - Google Patents

Abstract

The utility model discloses an encoder assembly, which comprises a support, an encoder module arranged on the support and a roller wheel for triggering the encoder module to generate signals, wherein a switching key is also arranged on the support, the switching key is associated with a pressing wheel assembly arranged on the support, the pressing wheel assembly comprises a gear set and a linkage rod, the linkage rod is provided with a swing rod end which can be tightly attached to the roller wheel, and the gear set is rotated by pressing the switching key so that the swing rod end is far away from or tightly attached to the roller wheel to switch the degree of freedom of the rotation of the roller wheel. The encoder assembly is provided with the button type switching key, so that the roller state of the encoder assembly can be switched, a ratchet wheel roller or a free rolling mode is obtained, and different environment requirements are met; in addition, the pinch roller assembly of this application simple structure is reliable, and overall structure easily assembles, and low in production cost is fit for industrial production.

Description

Encoder assembly

Technical Field

The present invention relates to input devices, and in particular, to an encoder assembly.

Background

Inputting data and information to a computer or electronic device is the bridge by which the computer communicates with users or other devices. An input device is one of the primary means by which information is exchanged between a user and a computer system. A keyboard, a mouse, a camera, a scanner, a light pen, a handwriting input board, a joystick, a voice input device, and the like are all input devices. An input device is a device that a person or the outside interacts with a computer for inputting raw data and programs for processing these numbers into the computer. The computer can receive various data, such as numerical data or non-numerical data, and the data can be input into the computer through different types of input devices for storage, processing and output.

The encoder component is one of the hardware modules that generate signals in the input device, and like the keys, has become a common component in input devices today. The encoder components are widely applied to the mouse, and the roller is not limited to the mouse, and can also be applied to other input equipment to realize the interaction function of roller operation.

The damping of current gyro wheel is fixed mostly, dials a check and rolls, can not provide multiple and stir the layer of feeling, still can't stir fast simultaneously, uses very inconveniently in some official working or recreation scenes. Therefore, ZL201910560652.3 multimode wheel of input device appears on the market, which can provide three operation modes, namely a flywheel mode, a constant friction mode and a ratchet mode, but the structure of the multimode wheel is too complex, so that the production cost of the mouse is greatly increased, and the weight of the mouse is increased; due to the complex structure, the shock resistance effect is poor and the shock-proof structure is easy to damage. Usually, such a multi-mode mouse is switched mechanically, and if electrical, electromechanical or electromagnetic control is adopted, the structural complexity is further increased, and the production cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a degree of freedom encoder assembly with switchable roller rotation, which has a novel structure and is convenient to assemble.

In order to realize the technical purpose, the scheme of the utility model is as follows: the utility model provides an encoder subassembly, includes the support and establishes the encoder module on the support, still includes the gyro wheel that triggers the encoder module and produce the signal, still be equipped with a switching button on the support, the switching button is associated with a pinch roller subassembly of installing on the support, the pinch roller subassembly includes gear train and gangbar, the gangbar has the pendulum rod end that can hug closely with the gyro wheel, presses down the switching button and makes the gear train rotatory and then make the pendulum rod end keep away from or hug closely the gyro wheel in order to switch gyro wheel pivoted degree of freedom.

Preferably, the roller is of an annular structure with an inner ring, and the inner ring wall of the roller is of a wavy or toothed structure; the gear set comprises a top stop gear, the linkage rod further comprises a transmission end positioned on the other side of the swing rod end, and the transmission end abuts against the top stop gear; a pivot hole is formed between the transmission end and the swing rod end, and a pivot shaft matched with the pivot hole is arranged on the bracket; the end of the swing rod extends into the inner ring of the roller; when the switching key is pressed, the top stop gear rotates to enable different parts of the gear to be abutted against the transmission end, and then the position change of the transmission end is generated to enable the swing rod end to be tilted to be attached to or fall off from the inner ring wall far away from the roller.

Preferably, the switching key comprises a key cover and a return spring for returning the key cover, wherein the end part of the return spring close to the key cover is provided with an extension arm; the gear set further comprises a ratchet wheel concentric with the top stop gear, and the extension arm extends to the ratchet wheel; the key cover is pressed to enable the reset spring and the extension arm to move downwards, and the extension arm drives the ratchet wheel to rotate so as to drive the top stop gear to rotate.

Preferably, the pinch roller assembly further comprises a torsion spring, a limiting table is arranged on the support, one end of the torsion spring is fixed on the limiting table, and the other end of the torsion spring abuts against the swing rod end of the linkage rod to provide downward pressure for the swing rod end.

Preferably, the contact part of the transmission end of the linkage rod and the top stop gear is of an arc surface structure, the top stop gear is provided with a plurality of tooth protrusions and tooth grooves, and the tooth protrusions of the top stop gear are provided with positioning grooves matched with the arc surface structure of the transmission end.

Preferably, the bracket is provided with a key groove, the key cover and the return spring are arranged in the key groove, and one side of the key groove, which is close to the gear set, is provided with a clearance groove to allow the extension arm to move up and down.

Preferably, a rotating shaft is arranged at the center of the roller, the encoder module comprises a fixed frame, a coding turntable and a PCB, a light pair pipe assembly consisting of a light emitting element and a photosensitive element is arranged on the PCB in a paster mode, the coding turntable is a hollow circular ring cover made of opaque materials and is inserted into the roller through the rotating shaft, a light path switch is arranged on the outer annular wall of the coding turntable, and when the light path switch on the coding turntable rotates to the light path of the light pair pipe, the photosensitive element can receive light emitted by the light emitting element.

Preferably, the light path switches are a plurality of light through holes uniformly distributed on the outer ring wall of the coding turntable, and the outer ring wall of the coding turntable is located between the light-emitting element and the photosensitive element.

Preferably, the PCB is provided with LED lamp beads in an attached mode.

The utility model has the beneficial effects that: the encoder assembly is provided with the button type switching key, so that the roller state of the encoder assembly can be switched, a ratchet roller or a free rolling mode is obtained, and different environmental requirements are met; in addition, the pinch roller assembly of this application simple structure is reliable, and overall structure easily assembles, and low in production cost is fit for industrial production.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a partial schematic view of the present invention;

FIG. 4 is a schematic structural view of a roller and a linkage rod according to the present invention;

FIG. 5 is a schematic diagram of a puck assembly according to the present invention;

FIG. 6 is an exploded view of the roller and encoder module of the present invention;

fig. 7 is a schematic structural diagram of the encoder disk of the present invention.

Wherein:

1. a support; 11. fixing a column; 12. a limiting table; 13. a pivot shaft; 14. an empty avoiding groove; 15. a key slot;

2. a roller; 21. a rotating shaft; 22. an anti-slip rubber ring; 23. an inner annular wall;

3. an encoder module; 31. a fixed mount; 32. a coding turntable; 321. an optical path switch; 33. a PCB board; 34. a light-to-tube assembly;

4. switching a key; 41. a key cover; 42. a return spring; 421. an extension arm;

5. a pinch roller assembly; 51. a gear set; 511. a ratchet wheel; 512. a top stop gear; 5121. the teeth are convex; 5122. a tooth socket; 52. a linkage rod; 521. a transmission end; 522. a swing rod end; 523. a pivot hole; 53. a torsion spring;

6. and the LED lamp beads.

Detailed Description

The utility model is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1-7, the embodiment of the present invention is an encoder assembly, which can be configured as a mouse by cooperating with a housing and a key, and includes a bracket 1, an encoder module 3 disposed on the bracket 1, and a roller 2 for triggering the encoder module 3 to generate a signal, wherein the bracket 1 is further provided with a switch key 4, the switch key 4 is associated with a pinch roller assembly 5 mounted on the bracket 1, the pinch roller assembly 5 is composed of a gear set 51, a linkage rod 52 and a torsion spring 53, the linkage rod 52 has a swing rod end 522 capable of being closely attached to the roller 2, and pressing the switch key 4 rotates the gear set 51 to make the swing rod end 522 away from or closely attached to the roller 2 to switch the degree of freedom of rotation of the roller 2, so that the roller 2 is configured as a ratchet rolling or free rolling mode.

The roller 2 is of an annular structure with an inner ring, and the inner ring wall 23 of the roller 2 is of a wave or tooth-shaped structure; the linkage rod 52 comprises a transmission end 521 positioned on the other side of the swing rod end 522 and a gear set 51 used for driving the transmission end 521, besides the swing rod end 522, the gear set 51 mainly comprises a top stop gear 512, and the transmission end 521 abuts against the top stop gear 512; a pivot hole 523 is formed between the transmission end 521 and the swing rod end 522, a pivot shaft 13 matched with the pivot hole 523 is arranged on the bracket 1, and the swing rod end 522 extends into an inner ring of the roller 2; when the switch button 4 is pressed, the top stop gear 512 rotates to change the position of the top stop gear contacting with the transmission end 521, so that the swing rod end 522 tilts up to be closely attached to or falls down to be far away from the inner ring wall 23 of the roller 2.

As the switching key 4 of the present application, the switching key 4 mainly includes a key cover 41 and a return spring 42 for returning the key cover 41, the bracket 1 is provided with a key slot 15, the key cover 41 and the return spring 42 are arranged in the key slot 15, the return spring 42 is sleeved on the fixing column 11 of the bracket 1, one side of the key slot 15 close to the gear set is provided with a clearance groove 14 to allow the extension arm 421 to move up and down, and the end of the return spring 42 close to the key cover 41 is provided with the extension arm 421; the gear set 51 further includes a ratchet 511 concentric with the top stop gear 512, the extension arm 421 extends to the ratchet 511, the key cover 41 is pressed to make the return spring 42 and the extension arm 421 move downward, the extension arm 421 drives the ratchet 511 to rotate and further drives the top stop gear 512 to rotate, and after the key cover 41 is loosened, the return spring 42 drives the extension arm 421 to ascend and return.

The top stop gear 512 is provided with a plurality of tooth protrusions 5121 and tooth grooves 5122, the relationship between the ratchet 511 and the top stop gear 512 is that when the key cover is pressed once, the ratchet 511 drives the top stop gear 512 to rotate by a quadrant along with the top stop gear 512, so that the transmission end 521 is positioned below the tooth protrusions 5121 or the tooth grooves 5122 of the top stop gear 512, when the transmission end 521 is positioned below the tooth protrusions 5121 of the top stop gear 512, the transmission end 521 is abutted against the tooth protrusions 5121, the tooth protrusions 5121 press the transmission end 521 downwards to enable the swing rod end 522 to tilt upwards and separate from the inner annular wall 23 of the roller 2, and the roller 2 is in a free flywheel mode; the limiting table 12 is arranged on one side of the support 1, one end of the torsion spring 53 is fixed in the limiting table 12, the other end of the torsion spring 53 abuts against the swing rod end 522 of the linkage rod, the switching key 4 is pressed again, when the transmission end 521 is located below the tooth groove 5122 of the top stop gear 512, the transmission end 521 returns upwards, the swing rod end 522 returns downwards under the action force of the torsion spring 53, in order to ensure that the top stop gear 512 and the transmission end 521 run smoothly, the part of the transmission end 521, which is in contact with the top stop gear 512, of the linkage rod 52 is of an arc structure, the tooth protrusions 5121 of the top stop gear 512 are provided with positioning grooves matched with the arc structure of the transmission end, abrasion between the top stop gear 512 and the transmission end 521 is reduced, and the service life is prolonged.

The utility model provides an encoder subassembly has the photoelectric function, 2 centers of gyro wheel are equipped with a pivot 21, encoder module 3 includes mount 31, code wheel 32 and PCB board, the paster is equipped with the phototube subassembly 34 that constitutes by light emitting component and light-sensitive element on the PCB board, code wheel 32 is the cavity ring lid of opaque material, this code wheel 32 inserts in gyro wheel 2 through pivot 21, code wheel 32's outer rampart is equipped with light path switch 321, when light path switch 321 on code wheel 32 rotates to the light path of phototube, light-sensitive element can receive the light that light emitting component sent. The light path switch 321 is formed by a plurality of light through holes uniformly distributed on the outer ring wall of the code turntable 32, and the outer ring wall of the code turntable 32 is located between the light emitting element and the photosensitive element.

As the preferred scheme of this embodiment, the cover is equipped with anti-skidding rubber ring 22 on gyro wheel 2, and PCB board facing is equipped with LED lamp pearl 6, can bring the various light effect of dazzling for gyro wheel 2.

The encoder assembly is provided with the button type switching key, so that the roller state of the encoder assembly can be switched, a ratchet wheel roller or a free rolling mode is obtained, and different environment requirements are met; in addition, the pinch roller assembly of this application simple structure is reliable, and overall structure easily assembles, and low in production cost is fit for industrial production.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides an encoder subassembly, includes the support and establishes the encoder module on the support, still including the gyro wheel that triggers encoder module production signal, its characterized in that: the support is further provided with a switching key, the switching key is associated with a pinch roller assembly arranged on the support, the pinch roller assembly comprises a gear set and a linkage rod, the linkage rod is provided with a swing rod end capable of being tightly attached to the roller, and the gear set is rotated by pressing the switching key so that the swing rod end is far away from or tightly attached to the roller to switch the rotational degree of freedom of the roller.

2. The encoder assembly of claim 1, wherein: the roller is of an annular structure with an inner ring, and the inner ring wall of the roller is of a wavy or toothed structure; the gear set comprises a top stop gear, the linkage rod further comprises a transmission end positioned on the other side of the swing rod end, and the transmission end abuts against the top stop gear; a pivot hole is formed between the transmission end and the swing rod end, and a pivot shaft matched with the pivot hole is arranged on the bracket; the end of the swing rod extends into the inner ring of the roller; when the switching key is pressed, the top stop gear rotates to enable different parts of the gear to be abutted against the transmission end, and then the position change of the transmission end is generated to enable the swing rod end to be tilted to be attached to or fall off from the inner ring wall far away from the roller.

3. The encoder assembly of claim 2, wherein: the switching key comprises a key cover and a return spring for resetting the key cover, wherein the end part of the return spring, close to the key cover, is provided with an extension arm; the gear set further comprises a ratchet wheel concentric with the top stop gear, and the extension arm extends to the ratchet wheel; the key cover is pressed to enable the reset spring and the extension arm to move downwards, and the extension arm drives the ratchet wheel to rotate so as to drive the top stop gear to rotate.

4. The encoder assembly of claim 3, wherein: the pinch roller assembly further comprises a torsional spring, a limiting table is arranged on the support, one end of the torsional spring is fixed on the limiting table, and the other end of the torsional spring is abutted to the swing rod end of the linkage rod to provide downward pressure for the swing rod end.

5. The encoder assembly of claim 4, wherein: the transmission end of the linkage rod is of an arc surface structure with the contact part of the top stop gear, the top stop gear is provided with a plurality of tooth protrusions and tooth grooves, and the tooth protrusions of the top stop gear are provided with positioning grooves matched with the arc surface structure of the transmission end.

6. The encoder assembly of claim 3, wherein: the support is provided with a key groove, the key cover and the reset spring are arranged in the key groove, and one side of the key groove, which is close to the gear set, is provided with a clearance groove to allow the extension arm to move up and down.

7. The encoder assembly of any of claims 1 to 6, wherein: the encoder module comprises a fixing frame, a coding turntable and a PCB, wherein a light pair pipe assembly composed of a light emitting element and a photosensitive element is arranged on a patch on the PCB, the coding turntable is a hollow ring cover made of opaque materials, the coding turntable is inserted into the roller through the rotating shaft, a light path switch is arranged on the outer ring wall of the coding turntable, and when the light path switch on the coding turntable rotates to the light path of the light pair pipe, the photosensitive element can receive light emitted by the light emitting element.

8. The encoder assembly of claim 7, wherein: the light path switch is a plurality of light through holes which are uniformly distributed on the outer ring wall of the coding turntable, and the outer ring wall of the coding turntable is positioned between the light-emitting element and the photosensitive element.

9. The encoder assembly of claim 7, wherein: and the PCB is provided with LED lamp beads in an attaching manner.

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