Encoder

Abstract

The encoder comprises an outer shaft, the interior of the outer shaft is a hollow space penetrating in the vertical direction, an inner rotating shaft is arranged in the outer shaft, and the inner rotating shaft can rotate and vertically move relative to the outer shaft; an annular groove is formed in the edge of the bottom of the outer shaft, the inner diameter of the annular groove is larger than that of the cylindrical body of the outer shaft, the annular groove is located below the cylindrical body of the outer shaft, a plurality of rubber coating chips are arranged on the inner top face of the annular groove, and the outer circumferential face of the bottom end of the inner rotating shaft is sleeved with a rotating disc. And the rotating disc is rotationally assembled in the annular groove, a plurality of brushes are arranged on the edge of the top of the rotating disc, and in the process that the inner rotating shaft drives the brushes to rotate, the brushes can make contact with or be disengaged from the rubber coating chips correspondingly. The rotating shaft is reasonable in structural design, the rotating shaft is the inner shaft, and the rotating shaft has the function of a push switch besides the rotating function.

Description

Technical Field

[0001] The present invention relates to the technical field of encoders, and in particular to an encoder. Background Art

[0002] 1. Current state of the art:

[0003] A hollow-core encoder is an encoder with a hollow center. This space is intended to allow customers to install lighting devices or other push-button devices. Existing hollow-core encoders all have an external rotating shaft and lack push-button functionality.

[0004] 2. Technical problems to be solved: Traditional encoders are external axis rotation and cannot be equipped with push switch functions. Summary of the Invention

[0005] The object of the present invention is to provide an encoder to solve the technical problem that traditional encoders have an external shaft rotation and cannot be equipped with a push switch function.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an encoder, comprising an outer shaft, the interior of the outer shaft is a hollow space that passes through vertically, an inner rotating shaft is provided inside the outer shaft, and the inner rotating shaft can rotate and move vertically relative to the outer shaft; an annular groove is provided on the bottom edge of the outer shaft, the inner diameter of the annular groove is larger than the inner diameter of the cylindrical body of the outer shaft, the annular groove is located below the cylindrical body of the outer shaft, the inner top surface of the annular groove is provided with a plurality of rubber-coated code sheets, the outer circumferential surface of the bottom end of the inner rotating shaft is covered with a rotating disk, the The rotating disk is rotatably assembled in the annular groove, and a plurality of brushes are provided on the top edge of the rotating disk. In the process of the brushes driven by the inner rotating shaft to rotate, the plurality of brushes can respectively contact and disengage with the plurality of rubber-coated code sheets; a switch rubber-coated body is provided below the outer shaft, and a switch is provided on the switch rubber-coated body, and a pot piece is covered above the switch, and the center of the pot piece is arched upward. When the inner rotating shaft is pressed downward, the bottom end of the inner rotating shaft can press the center of the pot piece to make the pot piece contact downward with the switch.

[0007] Furthermore, a plurality of pillars are provided on the top edge of the rotating disk, and the plurality of pillars are distributed in sequence along the circumferential direction of the rotating disk; a brush claw and a circular hole are provided at both ends of the brush, and the brush is inserted into the pillar through the circular hole and riveted together; the brush can contact and disengage with a plurality of the rubber-coated code sheets through the brush claw, and the brush claw of one brush is adjacent to the circular hole of another brush.

[0008] Furthermore, the bottom edge of the inner rotating shaft is provided with a plurality of protrusions, and the plurality of protrusions are distributed in sequence along the circumferential direction of the inner rotating shaft. The bottom edge of the rotating disk is provided with a plurality of second grooves, and the plurality of second grooves are distributed in sequence along the circumferential direction of the rotating disk. The plurality of protrusions are respectively inserted upward into the plurality of second grooves, so that the inner rotating shaft can drive the rotating disk to rotate together, and the protrusions can move up and down relative to the second grooves.

[0009] Furthermore, a plurality of positioning grooves are provided on the bottom edge of the rotating disk, and the plurality of positioning grooves are distributed in sequence along the circumferential direction of the rotating disk, and a plurality of the positioning grooves are located on the outside of the plurality of second grooves; a positioning spring piece is provided under the rotating disk, and the middle part of the positioning spring piece passes through the upper and lower parts, and the bottom end of the inner rotating shaft passes through the middle part of the positioning spring piece, and a positioning bud is provided on the edge of the positioning spring piece, and the positioning spring piece is fixedly connected to the bottom edge of the annular groove, and the rotating disk is subject to the upper and lower limits formed by the positioning spring piece and the annular groove; when the inner rotating shaft rotates, the positioning bud can contact and disengage with the plurality of positioning grooves.

[0010] Furthermore, the bottom edge of the annular groove is provided with a first positioning column on both sides, the two ends of the positioning spring are provided with spring holes, and the other two ends of the positioning spring are provided with positioning buds. The first positioning columns on both sides pass downward through the spring holes at both ends to fix the positioning spring on the first positioning columns of the annular groove; the positioning spring is a hardware spring, and the positioning buds are stamped buds on the hardware spring or plastic buds coated with glue on the hardware spring.

[0011] Furthermore, the bottom edge of the annular groove is provided with a plurality of first positioning holes, and the top edge of the switch rubber-coated body is provided with a plurality of second positioning columns, and the switch rubber-coated body is assembled with the first positioning holes of the outer shaft through the second positioning columns; the top edge of the switch rubber-coated body is provided with assembly grooves on both sides, and the assembly grooves on both sides cooperate with the first positioning columns on both sides to fix the holes of the springs at both ends; the outer shaft is made of hardware sheets by injection molding, and the annular groove of the outer shaft and the switch rubber-coated body are assembled and fixed together by four clips on the bracket.

[0012] Furthermore, the outer wall of the inner rotating shaft is provided with a lower cylindrical surface and an upper cylindrical surface, the upper cylindrical surface is located above the lower cylindrical surface, the outer diameter of the upper cylindrical surface is smaller than the outer diameter of the lower cylindrical surface, and the protrusion is located on the lower cylindrical surface; the lower inner wall of the cylindrical body of the outer shaft is provided with a hole cylindrical surface, and the upper inner wall of the cylindrical body of the outer shaft is provided with a plurality of hole ribs, the upper cylindrical surface is in cooperation with the plurality of hole ribs, and the lower cylindrical surface is in cooperation with the hole cylindrical surface, so that the inner rotating shaft can rotate inside the outer shaft and move up and down within a certain space.

[0013] As a preferred embodiment, the switch is provided on the top edge of the switch rubber-coated body, a switch pressing gasket is provided between the inner rotating shaft and the switch rubber-coated body, a lower end face is provided on the edge of the bottom end face of the inner rotating shaft, the upper end face of the switch pressing gasket is divided into an inner ring and an outer ring by an annular cutting groove, the lower end face of the inner rotating shaft abuts against the inner ring of the upper end face of the switch pressing gasket, and the edge of the switch pressing gasket is fixedly connected to the switch rubber-coated body; a small boss is provided below the inner ring of the upper end face of the switch pressing gasket, and when the inner rotating shaft presses down the switch pressing gasket, the small boss will press the pot piece downward to contact the switch.

[0014] Furthermore, the edge of the switch pressing gasket is provided with several locking positions, and the top edge of the switch rubber-coated body is provided with several third grooves. The switch pressing gasket is respectively inserted into the several third grooves of the switch rubber-coated body and fixed through the several locking positions; the two sides of the top edge of the switch rubber-coated body are respectively provided with fourth grooves for assembling the switch, and the pot piece is fixed by the fourth groove; the small bosses are respectively provided on both sides below the inner ring of the upper end face of the switch pressing gasket, and the small bosses on both sides can be pressed on the center of the pot piece on both sides to generate a pressing action.

[0015] As another preferred embodiment, a pot piece placement groove is provided in the middle of the switch rubber-coated body, the switch is arranged at the bottom of the pot piece placement groove, the pot piece is arranged at the top of the pot piece placement groove, and the middle of the bottom end surface of the inner rotating shaft is provided with a pressing point protruding downward in a conical shape, and the pressing point can press the pot piece downward to contact the switch.

[0016] In summary, the application of the technical solution of the present invention has the following beneficial effects: the structural design of the present invention is reasonable, (1) by including an outer shaft, the interior of the outer shaft is a hollow space that penetrates vertically, and the interior of the outer shaft is provided with an inner rotating shaft, which can rotate relative to the outer shaft and move vertically; thereby providing a new encoder structure, whose rotation mode is the rotation of the inner shaft, and with a push switch function, integrating the two functions into one. (2) An annular groove is provided through the bottom edge of the outer shaft, the inner diameter of the annular groove is larger than the inner diameter of the cylindrical body of the outer shaft, the annular groove is located below the cylindrical body of the outer shaft, and a plurality of rubber-coated code pieces are provided on the inner top surface of the annular groove. A rotating disk is sleeved on the outer circumferential surface of the bottom end of the inner rotating shaft, and the rotating disk is rotatably assembled in the annular groove. A plurality of brushes are provided on the top edge of the rotating disk. In the process of the inner rotating shaft driving the brush to rotate, the plurality of brushes can respectively contact and disengage with the plurality of rubber-coated code pieces; thus, in the process of the inner rotating shaft rotating, the inner rotating shaft drives the brush to continuously contact and disengage with the rubber-coated code pieces. At this time, the brush and the rubber-coated code piece generate an on-off signal (that is, the on-off signal of the incremental encoder). (3) A switch rubber-coated body is provided below the outer shaft, a switch is provided on the switch rubber-coated body, and a pot piece is covered above the switch. The center of the pot piece is arched upward, and when the inner shaft is pressed downward, the bottom end of the inner shaft can press the center of the pot piece, so that the pot piece is downwardly contacted with the switch; thus, when the inner shaft is pressed downward, the bottom of the inner shaft will press the center of the pot piece, and then the pot piece will move downward to contact the switch in the switch rubber-coated body, and form a switch on-off circuit on the switch rubber-coated body. From this analysis, it can be seen that the present invention provides a different encoder, whose rotating shaft is the inner shaft, and the rotating shaft has a pressing switch function in addition to the rotation function, and is a multifunctional inner shaft rotation and pressing type encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the explosion structure of Example 1 of the present invention;

[0018] Figure 2 yes Figure 1 A partial enlarged view of the upper side;

[0019] Figure 3 yes Figure 1 A partial enlarged view of the lower side;

[0020] Figure 4 This is a schematic diagram of the explosion structure of Example 1 of the present invention when it is inverted;

[0021] Figure 5 yes Figure 4 A partial enlarged view of the upper side;

[0022] Figure 6 yes Figure 4 A partial enlarged view of the lower side;

[0023] Figure 7 is a schematic cross-sectional structural diagram of Example 1 of the present invention;

[0024] Figure 8 This is a schematic diagram of the explosion structure of Example 2 of the present invention;

[0025] Figure 9 2 is a schematic diagram of the three-dimensional structure of the switch encapsulated body according to embodiment 2 of the present invention;

[0026] Figure 10 This is a schematic diagram of the explosion structure of Example 2 of the present invention when it is inverted;

[0027] Figure 11 is a schematic cross-sectional structural diagram of Example 2 of the present invention;

[0028] Description of the accompanying symbols: bracket (1), outer shaft (2), brush (3), rotating disk (4), positioning spring (5), inner rotating shaft (6), switch pressing pad (7), pot piece (8), switch rubber-coated body (9); card foot (11); hardware piece (21), annular groove (22), hole rib (23), rubber-coated code piece (24), hole cylindrical surface (25), first positioning column (26), first positioning hole (27); brush claw (31), round hole ( 32); column (41), second groove (42), positioning groove (43); hole for spring (51), positioning cam (52); convex block (61), lower cylindrical surface (62), upper cylindrical surface (63), lower end surface (64); upper end surface (71), latch (72), small boss (73); center (81), second positioning column (91), third groove (92), fourth groove (93), switch (94), assembly groove (95). Stamping cam (521), plastic cam (522), pressing point (65), pot piece placement groove (96). DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0030] In the present invention, for a clearer description, the following explanation is made: the observer faces the Figure 1For observation, the upper side of the observer is set as the upper side, and the lower side of the observer is set as the lower side. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "upper side", "lower side", etc. in the text indicate the directions or positional relationships based on the directions or positional relationships set in the accompanying drawings. They are only for the purpose of facilitating a clear description of the present invention, and do not indicate or imply that the structures or components referred to must have a specific direction or be constructed in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used only for the purpose of clarifying or simplifying the description, and should not be understood as indicating or implying relative importance or quantity.

[0031] See also Figures 1 to 11The present embodiment provides an encoder, including an outer shaft 2, the interior of the outer shaft 2 is a hollow space that passes through vertically, an inner rotating shaft 6 is provided inside the outer shaft 2, and the inner rotating shaft 6 can rotate and move vertically relative to the outer shaft 2; an annular groove 22 is provided on the bottom edge of the outer shaft 2, the inner diameter of the annular groove 22 is larger than the inner diameter of the cylindrical body of the outer shaft 2, the annular groove 22 is located below the cylindrical body of the outer shaft 2, and a plurality of rubber-coated code sheets 24 are provided on the inner top surface of the annular groove 22, and a rotating disk 4 is provided on the outer circumferential surface of the bottom end of the inner rotating shaft 6, and the rotating disk 4 is rotated and assembled In the annular groove 22, a plurality of brushes 3 are provided on the top edge of the rotating disk 4. When the inner rotating shaft 6 drives the brushes 3 to rotate, the plurality of brushes 3 can respectively contact and disengage with the plurality of rubber-coated code pieces 24. A switch rubber-coated body 9 is provided below the outer shaft 2. A switch 94 is provided on the switch rubber-coated body 9. A pot piece 8 is covered above the switch 94. The center 81 of the pot piece 8 is arched upward. When the inner rotating shaft 6 is pressed downward, the bottom end of the inner rotating shaft 6 can press the center 81 of the pot piece 8 to make the pot piece 8 contact downward with the switch 94. Function: (1) By including an outer shaft, the interior of the outer shaft is a hollow space that passes through in the vertical direction. The interior of the outer shaft is provided with an inner rotating shaft. The inner rotating shaft can rotate and move vertically relative to the outer shaft. Thus, a new encoder structure is provided, which rotates in the form of an inner shaft rotation and has a push switch function, integrating the two functions into one. (2) An annular groove is provided through the bottom edge of the outer shaft, the inner diameter of the annular groove is larger than the inner diameter of the cylindrical body of the outer shaft, the annular groove is located below the cylindrical body of the outer shaft, and a plurality of rubber-coated code pieces are provided on the inner top surface of the annular groove. A rotating disk is sleeved on the outer circumferential surface of the bottom end of the inner rotating shaft, and the rotating disk is rotatably assembled in the annular groove. A plurality of brushes are provided on the top edge of the rotating disk. In the process of the inner rotating shaft driving the brush to rotate, the plurality of brushes can respectively contact and disengage with the plurality of rubber-coated code pieces; thus, in the process of the inner rotating shaft rotating, the inner rotating shaft drives the brush to continuously contact and disengage with the rubber-coated code pieces. At this time, the brush and the rubber-coated code piece generate an on-off signal (that is, the on-off signal of the incremental encoder). (3) A switch rubber-coated body is provided below the outer shaft, a switch is provided on the switch rubber-coated body, and a pot piece is covered above the switch. The center of the pot piece is arched upward, and when the inner shaft is pressed downward, the bottom end of the inner shaft can press the center of the pot piece, so that the pot piece is downwardly contacted with the switch; thus, when the inner shaft is pressed downward, the bottom of the inner shaft will press the center of the pot piece, and then the pot piece will move downward to contact the switch in the switch rubber-coated body, and form a switch on-off circuit on the switch rubber-coated body. From this analysis, it can be seen that the present invention provides a different encoder, whose rotating shaft is the inner shaft, and the rotating shaft has a pressing switch function in addition to the rotation function, and is a multifunctional inner shaft rotation and pressing type encoder.

[0032] Specifically, the top edge of the rotating disk 4 is provided with a plurality of posts 41, which are distributed sequentially along the circumference of the rotating disk 4. Brush claws 31 and circular holes 32 are respectively provided at each end of the brush 3. The brush 3 is inserted into the posts 41 through the circular holes 32 and riveted together. The brush 3 can contact and disengage with the plurality of rubber-coated code chips 24 through the brush claws 31. The brush claws 31 of one brush 3 are adjacent to the circular holes 32 of another brush 3. Function: This arrangement ensures that the circular holes 32 of the brush 3 have good fixation, while the brush claws 31 have good contact with the rubber-coated code chips 24. The brush 3 has good elasticity and is evenly and reasonably distributed. The rubber-coated code chips 24 contact several (e.g., three) brush claws 31 of the brush 3. When the brush claws 31 rotate, they generate an on / off signal with the code chips 24, which serves as the on / off signal of the incremental encoder. In practice, since the brush 3 is inserted into the column 41 of the rotating disk 5 through the circular hole 32 thereon and riveted together, it rotates with the rotating disk 4 and the inner rotating shaft 6. The inner rotating shaft 6, the rotating disk 4, and the brush 3 together constitute the rotating part of the product.

[0033] Specifically, the bottom edge of the inner rotating shaft 6 is provided with a plurality of protrusions 61, which are sequentially distributed along the circumference of the inner rotating shaft 6. The bottom edge of the rotating disk 4 is provided with a plurality of second grooves 42, which are sequentially distributed along the circumference of the rotating disk 4. The plurality of protrusions 61 are respectively inserted upward into the plurality of second grooves 42, so that the inner rotating shaft 6 can drive the rotating disk 4 to rotate together, and the protrusions 61 can move up and down relative to the second grooves 42. Function: The inner rotating shaft 6 is a rotating shaft with a pressing function, which is inserted into the second grooves 42 of the rotating disk 4 through the protrusions 61. When the inner rotating shaft rotates, it will drive the rotating disk 4 to rotate together. When the inner rotating shaft is pressed downward, the protrusions 61 can move downward relative to the second grooves 42, while the rotating disk 4 can remain stationary in the vertical direction, thereby simultaneously realizing the pressing and rotating functions of the inner rotating shaft.

[0034] Specifically, a plurality of positioning grooves 43 are provided on the bottom edge of the rotating disk 4, and the plurality of positioning grooves 43 are distributed in sequence along the circumferential direction of the rotating disk 4, and the plurality of positioning grooves 43 are located on the outside of the plurality of second grooves 42; a positioning spring piece 5 is provided under the rotating disk 4, and the middle part of the positioning spring piece 5 passes through the upper and lower parts, and the bottom end of the inner rotating shaft 6 passes through the middle part of the positioning spring piece 5, and a positioning bud point 52 is provided on the edge of the positioning spring piece 5, and the positioning spring piece 5 is fixedly connected to the bottom edge of the annular groove 22, and the rotating disk 4 is subject to the upper and lower limits formed by the positioning spring piece 5 and the annular groove 22; when the inner rotating shaft 6 rotates, the positioning bud point 52 can contact and disengage with the plurality of positioning grooves 43. Function: The positioning bud 52 is in constant contact and disengagement with the positioning groove 43 on the rotating disk 4, which produces a one-step positioning feel during rotation; and the rotating disk 4 and the positioning spring piece 5 remain relatively stationary in the up and down directions, which can also facilitate the rotation and pressing functions of the inner rotating shaft 6. The inner rotating shaft 6 passes through the middle of the positioning spring piece 5 and is pressed and fitted with the pot piece 8 (or indirectly pressed and fitted with the pot piece 8 through the switch pressing gasket 7 mentioned below).

[0035] Specifically, the bottom edge of the annular groove 22 is provided with first positioning posts 26 on both sides, and the two ends of the positioning spring 5 are provided with spring holes 51, and the other two ends of the positioning spring 5 are provided with positioning protrusions 52. The first positioning posts 26 on both sides respectively pass downward through the spring holes 51 at both ends to fix the positioning spring 5 on the first positioning posts 26 of the annular groove 22. The positioning spring 5 is a hardware spring, and the positioning protrusions 52 are stamped protrusions 521 on the hardware spring or plastic protrusions 522 coated with rubber on the hardware spring. Function: The positioning spring 5 is fixed to the first positioning posts 26 of the outer shaft 2 through the spring holes 51 (i.e., positioning holes) thereon, thereby fixing the positioning spring 5. The provision of two positioning protrusions 52 can achieve a better feel of positioning in each gear during rotation. The stamped protrusions 521 and the plastic protrusions 522 can be selected according to actual needs and are not limited here.

[0036] Specifically, the bottom edge of the annular groove 22 is provided with a plurality of first positioning holes 27, and the top edge of the switch encapsulated body 9 is provided with a plurality of second positioning posts 91. The switch encapsulated body 9 is assembled with the first positioning holes 27 of the outer shaft 2 via the second positioning posts 91. Mounting grooves 95 are provided on either side of the top edge of the switch encapsulated body 9. These mounting grooves 95 cooperate with the first positioning posts 26 on either side to secure the spring clip holes 51 at both ends. The outer shaft 2 is formed by injection molding a metal piece 21. The annular groove 22 of the outer shaft 2 and the switch encapsulated body 9 are assembled and secured together via four clips 11 on the bracket 1. Function: The first positioning posts 26 are used to fit into the spring clip holes 51 of the positioning spring clip 5. The first positioning hole 27 is assembled with the second positioning posts 91 and, through the four clips 11 on the bracket 1, the outer shaft 2 is assembled and secured to the switch encapsulated body 9 and the positioning spring clip 5.

[0037] Specifically, the outer wall of the inner shaft 6 is provided with a lower cylindrical surface 62 and an upper cylindrical surface 63. The upper cylindrical surface 63 is located above the lower cylindrical surface 62 and has an outer diameter smaller than that of the lower cylindrical surface 62. The protrusion 61 is located on the lower cylindrical surface 62. The lower inner wall of the cylindrical body of the outer shaft 2 is provided with a hole cylindrical surface 25. The upper inner wall of the cylindrical body of the outer shaft 2 is provided with a plurality of hole ribs 23. The upper cylindrical surface 63 engages with the plurality of hole ribs 23, and the lower cylindrical surface 62 engages with the hole cylindrical surface 25. This allows the inner shaft 6 to rotate within the outer shaft 2 and move up and down within a certain space. Function: The hole ribs 23 are designed to be inserted into the upper cylindrical surface 63 of the inner shaft 6, and the hole cylindrical surface 25 is designed to be inserted into the lower cylindrical surface 62 of the inner shaft 6. The inner shaft 6 passes through the upper cylindrical surface 63 and the lower cylindrical surface 62 into the interior of the cylindrical body of the outer shaft 2 and cooperates with the hole rib 23 and the hole cylindrical surface 25 respectively, so that the inner shaft 6 can rotate in the hole and move up and down in a certain space (pressing space).

[0038] In Example 1, a switch 94 is provided on the top edge of the switch rubber-coated body 9, a switch pressing gasket 7 is provided between the inner rotating shaft 6 and the switch rubber-coated body 9, and a lower end surface 64 is provided on the edge of the bottom end surface of the inner rotating shaft 6. The upper end surface 71 of the switch pressing gasket 7 is divided into an inner ring and an outer ring by an annular cutting groove. The lower end surface 64 of the inner rotating shaft 6 abuts against the inner ring of the upper end surface 71 of the switch pressing gasket 7, and the edge of the switch pressing gasket 7 is fixedly connected to the switch rubber-coated body 9; a small boss 73 is provided below the inner ring of the upper end surface 71 of the switch pressing gasket 7. When the inner rotating shaft 6 presses down the switch pressing gasket 7, the small boss 73 will press the pot piece 8 downward to contact the switch 94. Function: The annular cutting groove allows the inner ring to produce a downward pressing action, while the outer ring serves as a fixed part; the inner rotating shaft 6 presses on the inner ring of the upper end face 71 of the switch pressing gasket 7 through its lower end face 64 (realizing the upward support of the switch pressing gasket 7 on the inner rotating shaft 6), and the inner rotating shaft presses on the center 81 of the pot piece 8 through the small boss 73 on the switch pressing gasket 7, producing a pressing action. When the inner rotating shaft 6 is pressed down, it will press the pot piece 8 downward to contact the switch 94 in the switch rubber-coated body 9, and form a switch on-off circuit on the switch rubber-coated body 9. The three parts of the inner rotating shaft 6, the switch pressing gasket 7, and the pot piece 8 together constitute the pressing part of the product. Preferably, the interior of the inner rotating shaft 6, the switch pressing gasket 7, and the switch rubber-coated body 9 is a hollow space that runs through from top to bottom, and the middle part of the switch rubber-coated body 9 passes upward through the middle part of the switch pressing gasket 7 and the inner rotating shaft 6 in sequence.

[0039] Specifically, the edge of the switch pressing gasket 7 is provided with several locking positions 72, and the top edge of the switch rubber-coated body 9 is provided with several third grooves 92. The switch pressing gasket 7 is respectively inserted into the several third grooves 92 of the switch rubber-coated body 9 through the several locking positions 72 and fixed; the two sides of the top edge of the switch rubber-coated body 9 are respectively provided with fourth grooves 93 equipped with switches 94, and the pot piece 8 is fixed by the fourth groove 93; small bosses 73 are respectively provided on both sides of the lower side of the inner ring of the upper end face 71 of the switch pressing gasket 7, and the small bosses 73 on both sides can be pressed on the center 81 of the pot piece 8 on both sides to produce a pressing action. Function: The pot piece 8 is fixed by the fourth groove 93 on the switch rubber-coated body 9, and the switch pressing gasket 7 is inserted into the third groove 92 of the switch rubber-coated body 9 and fixed by the locking position 72 (since the upper part of the switch rubber-coated body 9 is the annular groove 22, the bottom edge of the annular groove 22 forms a limit for the locking position 72 of the third groove 92), thereby realizing the assembly and fixation of the switch pressing gasket 7 and the pot piece 8 on the switch rubber-coated body 9; and the setting of the two small bosses 73, the pot piece 8, and the switch 94 can better realize the formation of a switch on-off circuit on the switch rubber-coated body 9.

[0040] In Example 2, a pot holder recess 96 is provided in the middle of the rubber-coated switch body 9. The switch 94 is positioned at the bottom of this recess, and the pot holder 8 is positioned at the top. A downwardly conically protruding pressure point 65 is provided in the middle of the bottom end surface of the inner shaft 6. This pressure point 65 pushes the pot holder 8 downward to contact the switch 94. This centrally positioned pot holder structure provides a more uniform and consistent pressing feel. Preferably, the interior of the inner shaft 6 is a hollow space that extends upward and is closed at the bottom.

[0041] This invention is a new type of encoder (a hollow-type encoder with an internal rotating shaft and a push-button function) that achieves both an internally rotating shaft and a push-button function. Similar hollow-type potentiometers and switches with internally rotating and push-button functions also fall within the same scope of this technology. While traditional hollow-type encoders have an external rotating shaft and a fixed internal shaft, creating a hollow space, this new encoder features an internally rotating and push-button internal shaft, with a fixed external shaft and a hollow space.

[0042] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An encoder comprising an outer shaft (2), characterized in that: The interior of the outer shaft (2) is a hollow space that passes through in the vertical direction. An inner rotating shaft (6) is provided inside the outer shaft (2). The inner rotating shaft (6) can rotate and move vertically relative to the outer shaft (2). An annular groove (22) is provided on the bottom edge of the outer shaft (2). The inner diameter of the annular groove (22) is larger than the inner diameter of the cylindrical body of the outer shaft (2). The annular groove (22) is located below the cylindrical body of the outer shaft (2). A plurality of rubber-coated code sheets (24) are provided on the inner top surface of the annular groove (22). A rotating disk (4) is sleeved on the outer circumferential surface of the bottom end of the inner rotating shaft (6). The rotating disk (4) is rotatably assembled in the annular groove (22). A plurality of brushes (3) are provided on the top edge of the disk (4). When the brushes (3) are driven to rotate by the inner rotating shaft (6), the plurality of brushes (3) can respectively contact and disengage with the plurality of rubber-coated code sheets (24). A switch rubber-coated body (9) is provided below the outer shaft (2). A switch (94) is provided on the switch rubber-coated body (9). A pot piece (8) is covered above the switch (94). The center (81) of the pot piece (8) is arched upward. When the inner rotating shaft (6) is pressed downward, the bottom end of the inner rotating shaft (6) can press the center (81) of the pot piece (8) so that the pot piece (8) is downwardly contacted with the switch (94).

2. An encoder according to claim 1, characterized in that: The top edge of the rotating disk (4) is provided with a plurality of pillars (41), and the plurality of pillars (41) are sequentially distributed along the circumferential direction of the rotating disk (4); the two ends of the brush (3) are respectively provided with brush claws (31) and circular holes (32); the brush (3) is inserted into the pillars (41) through the circular holes (32) and riveted together; the brush (3) can contact and disengage with a plurality of the rubber-coated code sheets (24) through the brush claws (31); the brush claw (31) of one brush (3) is adjacent to the circular hole (32) of another brush (3).

3. The encoder according to claim 1, wherein: The bottom edge of the inner rotating shaft (6) is provided with a plurality of protrusions (61), and the plurality of protrusions (61) are sequentially distributed along the circumferential direction of the inner rotating shaft (6). The bottom edge of the rotating disk (4) is provided with a plurality of second grooves (42), and the plurality of second grooves (42) are sequentially distributed along the circumferential direction of the rotating disk (4). The plurality of protrusions (61) are respectively inserted upward into the plurality of second grooves (42), so that the inner rotating shaft (6) can drive the rotating disk (4) to rotate together, and the protrusions (61) can move up and down relative to the second grooves (42).

4. An encoder according to claim 3, characterized in that: The bottom edge of the rotating disk (4) is provided with a plurality of positioning grooves (43), and the plurality of positioning grooves (43) are sequentially distributed along the circumferential direction of the rotating disk (4), and the plurality of positioning grooves (43) are located outside the plurality of second grooves (42); a positioning spring piece (5) is provided below the rotating disk (4), and the middle part of the positioning spring piece (5) is passed through from top to bottom, and the bottom end of the inner rotating shaft (6) passes through the middle part of the positioning spring piece (5); a positioning bud point (52) is provided on the edge of the positioning spring piece (5), and the positioning spring piece (5) is fixedly connected to the bottom edge of the annular groove (22), and the rotating disk (4) is subject to the upper and lower limit formed by the positioning spring piece (5) and the annular groove (22); when the inner rotating shaft (6) rotates, the positioning bud point (52) can contact and disengage with the plurality of positioning grooves (43).

5. An encoder according to claim 4, characterized in that: The bottom edge of the annular groove (22) is provided with first positioning columns (26) on both sides, and the two ends of the positioning spring piece (5) are provided with spring piece holes (51), and the other two ends of the positioning spring piece (5) are provided with positioning clasps (52). The first positioning columns (26) on both sides respectively pass through the spring piece holes (51) at both ends downward to fix the positioning spring piece (5) on the first positioning columns (26) of the annular groove (22); the positioning spring piece (5) is a metal spring piece, and the positioning clasps (52) are stamped clasps (521) on the metal spring piece or plastic clasps (522) coated with glue on the metal spring piece.

6. An encoder according to claim 5, characterized in that: The bottom edge of the annular groove (22) is provided with a plurality of first positioning holes (27), and the top edge of the switch encapsulated body (9) is provided with a plurality of second positioning columns (91), and the switch encapsulated body (9) is assembled with the first positioning holes (27) of the outer shaft (2) through the second positioning columns (91); the two sides of the top edge of the switch encapsulated body (9) are respectively provided with assembly grooves (95), and the assembly grooves (95) on both sides respectively cooperate with the first positioning columns (26) on both sides to fix the holes (51) of the springs at both ends; the outer shaft (2) is made of a metal sheet (21) by injection molding, and the annular groove (22) of the outer shaft (2) and the switch encapsulated body (9) are assembled and fixed together through four clamping feet (11) on the bracket (1).

7. An encoder according to any one of claims 3 to 6, characterized in that: The outer wall of the inner rotating shaft (6) is provided with a lower cylindrical surface (62) and an upper cylindrical surface (63), the upper cylindrical surface (63) is located above the lower cylindrical surface (62), the outer diameter of the upper cylindrical surface (63) is smaller than the outer diameter of the lower cylindrical surface (62), and the convex block (61) is located on the lower cylindrical surface (62); the lower inner wall of the cylindrical body of the outer shaft (2) is provided with a hole cylindrical surface (25), the upper inner wall of the cylindrical body of the outer shaft (2) is provided with a plurality of hole convex ribs (23), the upper cylindrical surface (63) is in contact with the plurality of hole convex ribs (23), and the lower cylindrical surface (62) is in contact with the hole cylindrical surface (25), so that the inner rotating shaft (6) can rotate inside the outer shaft (2) and move up and down within a certain space.

8. An encoder according to any one of claims 1 to 6, characterized in that: The switch (94) is provided on the top edge of the switch rubber-coated body (9), a switch pressing gasket (7) is provided between the inner rotating shaft (6) and the switch rubber-coated body (9), the edge of the bottom end face of the inner rotating shaft (6) is provided with a lower end face (64), the upper end face (71) of the switch pressing gasket (7) is divided into an inner ring and an outer ring by an annular cutting groove, the lower end face (64) of the inner rotating shaft (6) abuts against the inner ring of the upper end face (71) of the switch pressing gasket (7), and the edge of the switch pressing gasket (7) is fixedly connected to the switch rubber-coated body (9); a small boss (73) is provided below the inner ring of the upper end face (71) of the switch pressing gasket (7), and when the inner rotating shaft (6) presses down the switch pressing gasket (7), the small boss (73) presses the pot piece (8) downward to contact the switch (94).

9. An encoder according to claim 8, characterized in that: The edge of the switch pressing gasket (7) is provided with a plurality of latching positions (72), and the top edge of the switch encapsulated body (9) is provided with a plurality of third grooves (92), and the switch pressing gasket (7) is respectively inserted into the plurality of third grooves (92) of the switch encapsulated body (9) through the plurality of latching positions (72) to be fixed; fourth grooves (93) equipped with the switch (94) are respectively provided on both sides of the top edge of the switch encapsulated body (9), and the pot piece (8) is fixed through the fourth grooves (93); the small bosses (73) are respectively provided on both sides below the inner ring of the upper end surface (71) of the switch pressing gasket (7), and the small bosses (73) on both sides can be pressed on the center (81) of the pot piece (8) on both sides to generate a pressing action.

10. An encoder according to any one of claims 1 to 6, characterized in that: A pot piece placement groove (96) is provided in the middle of the switch rubber-coated body (9), the switch (94) is arranged at the bottom of the pot piece placement groove (96), the pot piece (8) is arranged at the top of the pot piece placement groove (96), and a pressing point (65) protruding downward in a conical shape is provided in the middle of the bottom end surface of the inner rotating shaft (6), and the pressing point (65) can press the pot piece (8) downward to contact the switch (94).

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