Force Feedback Device

Abstract

The present invention relates to the technical field of force feedback and provides a force feedback device. [Solution] The present invention includes a fixed base, a button assembly, a driving assembly, and a transmission structure, the button assembly includes a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button formed by extending from the circumferential side of the button body, and a circular arc part having a circular outer periphery and connected to the button body, the button body is supported on the fixed base via the first transmission shaft and forms a rotational connection, the driving assembly includes a driving unit fixed to one side of the fixed base and a rotating shaft connected to the driving unit, the rotating shaft is rotatably mounted on the fixed base and facing the circular arc part, the transmission structure is mounted around the rotating shaft, both ends of the transmission structure respectively extend along the circular arc part and are fixed to both ends of the circular arc part. Compared with the related art, the present invention realizes the force feedback effect of the button by driving the transmission structure with the rotating shaft of the driving assembly rotating forward and backward, the overall space is compact, the friction resistance is small, and the experience effect is high.

Description

[Technical field]

[0001] The present invention relates to the technical field of force feedback, and in particular to a force feedback device. [Background technology]

[0002] With the development of network technology and electronic information technology, more and more games are developed, various control wheels, virtual reality devices, and augmented reality devices are developed, and users have higher requirements for the sensation when using external devices.

[0003] The triggers in various types of handles or external devices in the related art are directly connected to buttons and cannot be adjusted according to different game scenes, and some of them only provide certain vibration feedback, which makes it difficult to provide users with a good game experience and cannot provide users with an immersive game experience. Force feedback, as an important characteristic of haptic feedback, has been increasingly and widely emphasized with the development of different electronic devices, especially the evolution of personal consumer electronic products.

[0004] However, the force feedback device in the related art has a large layout space, a large friction force, and a poor feedback force control effect, and cannot provide a good user experience.

[0005] Therefore, there is a need to provide a new force feedback device to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0006] The technical problem to be solved by the present invention is to provide a force feedback device that has a compact overall space, low frictional resistance, low inertia, smooth and controllable feedback force, and provides a high user experience. [Means for solving the problem]

[0007] In order to solve the above technical problems, the present invention provides a force feedback device, The force feedback device includes a fixed base, a button assembly, a drive assembly, and a transmission structure; The button assembly includes a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button formed extending from the circumferential side of the button body, and an arc portion having an arc-shaped outer periphery and connected to the button body, the button body is supported on the fixed base via the first transmission shaft and forms a pivotal connection, the drive assembly includes a drive unit fixed to one side of the fixed base and a pivot shaft connected to the drive unit, the pivot shaft is rotatably installed on the fixed base and installed opposite the arc portion, the transmission structure is circumferentially installed around the pivot shaft, and both ends of the transmission structure respectively extend along the arc portion and are fixed to both ends of the arc portion.

[0008] Preferably, the transmission structure is a connecting belt or a connecting rope.

[0009] Preferably, the button body, the button and the arcuate portion are of an integral structure.

[0010] Preferably, the button assembly further includes at least two cylinders fixed to the arc portion, the cylinders being spaced apart from one another and two adjacent cylinders being staggered along a direction perpendicular to the rotation axis, and the transmission structure being wound around each cylinder in sequence and fixed to an end of the arc portion.

[0011] Preferably, the cylinders are located on the same side of the pivot axis.

[0012] Preferably, the fixed base includes a fixed base body, a position limiting groove formed by being recessed from the fixed base body in a direction away from the button assembly, and a stopper plate removably fixed within the position limiting groove, and the first transmission shafts located on opposite sides of the button body are respectively supported by the fixed base body and the stopper plate and respectively form pivotal connections.

[0013] Preferably, each of the button assemblies further includes a first lubricating portion that is fitted and fixed to the outside of the first transmission shaft, and is pivotally connected to the fixed base body and the stopper plate via the first lubricating portion.

[0014] Preferably, the fixing base further includes a fixing plate fixed in the position limiting groove, and the button assembly extends from the button body toward the arc portion. Russ the second transmission shaft is supported by the fixed plate and forms a pivotal connection; and a gear is installed on one side of the fixed plate and fixed to the second transmission shaft, the arc portion is located on the other side of the fixed plate and fixedly connected to the second transmission shaft, and an internal tooth structure is installed at one end adjacent to the swing link, and the gear meshes with the internal tooth structure.

[0015] Preferably, the force feedback device further includes a position sensor, the position sensor being fixed to the fixed base and connected to one end of the first transmission shaft.

[0016] Preferably, the force feedback device further includes a torsion spring, the torsion spring being fitted onto the first transmission shaft, one end of the torsion spring abutting against the button, and the other end of the torsion spring abutting against the fixed base.

[0017] Preferably, two tension adjusting mechanisms are further installed on opposite ends of the arc portion, and both ends of the transmission structure are respectively connected to the two tension adjusting mechanisms. Effect of the Invention

[0018] Compared with the related art, the force feedback device provided by the present invention is operated by rotatably installing a button assembly on a fixed base, the button assembly including a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button formed by extending from the circumferential side of the button body, and an arc part having an arc-shaped outer periphery and connected to the button body, the button body being supported on the fixed base via the first transmission shaft and forming a rotational connection. The drive assembly includes a drive unit fixed to one side of the fixed base and a rotation shaft connected to the drive unit, the rotation shaft being rotatably installed on the fixed base and facing the arc part. The transmission structure is installed around the rotation shaft, and both ends of the transmission structure extend along the arc part and are fixed to both ends of the arc part. When a button is pressed, the rotation shaft of the drive assembly drives the transmission structure in forward and reverse rotations, thereby realizing the force feedback effect of the button, and the overall space is compact, the friction resistance is small, and it is easy to improve the user's experience effect. [Brief description of the drawings]

[0019] In order to more clearly explain the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the description of the embodiments. However, the drawings described below are only some embodiments of the present invention, and it is obvious to those skilled in the art in the technical field to which the present invention belongs that they can obtain other drawings based on these drawings without any creative work. [Figure 1] 1 is a schematic diagram showing a configuration of a force feedback device according to the present invention; [Diagram 2] 2 is a cross-sectional view taken along line AA shown in FIG. 1. [Diagram 3] FIG. 2 is an exploded perspective view shown in FIG. [Figure 4] 1 is a schematic diagram showing a configuration of a force feedback device according to the present invention; [Diagram 5] 5 is a cross-sectional view taken along line BB shown in FIG. [Figure 6] FIG. 5 is an exploded perspective view shown in FIG. [Figure 7] 1 is a schematic diagram of a force feedback device according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments that a person skilled in the art can obtain without creative labor are all included in the protection scope of the present invention.

[0021] Example 1

[0022] As shown in FIGS. 1 to 7, a force feedback device 100 is provided, which includes a fixed base 1, a button assembly 2, a driving assembly 3 and a transmission structure 4.

[0023] The fixed base 1 is used to support a button assembly 2 and a drive assembly 3 .

[0024] The button assembly 2 includes a button body 22, a first transmission shaft 21 protruding and extending from both opposing sides of the button body 22, a button 23 formed by extending from the circumferential side of the button body 22, and an arcuate portion 24 having an arcuate outer periphery and connected to the button body 22. By pressing the button 23, the button body 22 rotates on the first transmission shaft 21, and the arcuate portion 24 rotates around the first transmission shaft 21. Here, a stopper (not shown) is installed between the button assembly 2 and the fixed base 1 and is used to ensure that the stroke of the button 23 is fixed.

[0025] The drive assembly 3 is fixed to one side of the fixed base 1, and the drive assembly 3 includes a drive unit and a rotating shaft 31 connected to the drive unit, the rotating shaft 31 is rotatably installed on the fixed base 1 and installed opposite the arc section 24. The transmission structure 4 is installed around the rotating shaft 31, and both ends of the transmission structure 4 extend along the arc section 24 respectively and are fixed to both ends of the arc section 24. The transmission structure 4 is made of a flexible material, and the transmission structure 4 does not have significant ductility and cannot be pulled, and at the same time has a certain wear resistance and strength. The transmission ratio can be adjusted by adjusting the diameter of the rotating shaft 31 and the diameter of the arc section 24 cooperating therewith.

[0026] Specifically, the button assembly 2 is rotatably installed on the fixed base 1 for operation, the button assembly 2 is connected to the fixed base 1 via a first transmission shaft 21, the button assembly 2 includes a button 23 extending from the circumferential side of the button body 22, and an arcuate portion 24 having an arcuate outer periphery and connected to the button body 22, the drive assembly 3 is fixed to one side of the fixed base 1, the rotation shaft 31 of the drive assembly 3 is rotatably installed on the fixed base 1 and corresponds to the arcuate portion 24, the transmission structure 4 is circumferentially installed on the rotation shaft 31, and both ends of the transmission structure 4 are respectively wrapped around the arcuate portion 24 and fixed to both ends of the arcuate portion 24. When the button 23 is pressed, the drive unit drives the forward and reverse rotation of the rotation shaft 31 to drive the transmission structure 4, so that the force feedback effect of the button 23 can be realized, and the overall space is compact and the friction resistance is small, which is easy to improve the user's experience effect.

[0027] In this embodiment, the transmission structure 4 is a connecting belt or a connecting rope. The connecting rope or the connecting belt is wound around the rotating shaft 31 several times, and both ends of the connecting rope or the connecting belt are parallel to each other and in close contact with the arc surface, and both ends of the connecting belt are fixed to both ends of the arc portion 24. Here, the initial position of the rotating shaft 31 is located at a position corresponding to the midpoint of the arc surface of the arc portion 24, and both ends of the connecting belt are fixed to both ends of the arc surface, and the torque of the rotating shaft 31 is amplified by the rope transmission or the belt transmission and acts on the first transmission shaft 21 of the button 23, generating force feedback.

[0028] In this embodiment, the pivot shaft 31 is a capstan. Between the capstan and the button 23, a connecting belt or a connecting rope is used for power transmission, which does not have significant ductility, cannot be pulled, and at the same time requires a certain wear resistance and strength. The capstan and the button 23 are close to the arc portion 24, and can be separated by a small gap. The connecting belt or the connecting rope is wound around the capstan several times, and then wound around the arc surface of the arc portion 24 in close contact with the arc surface, resulting in a high power transmission effect.

[0029] Preferably, the capstan is mounted against the circular arc portion 24, and the connecting belt or connecting rope is driven, so that the structure is compact and can be adapted to a smaller space.

[0030] Preferably, there is a gap between the capstan and the arcuate portion 24 to facilitate the installation of multiple types of connecting belts or ropes.

[0031] In this embodiment, the button body 22, the button 23 and the arc portion 24 are integrally formed. By providing an integral structure, the strength of the entire structure is high and installation is easy.

[0032] In this embodiment, the button assembly 2 further includes at least two cylinders 5 fixed to the arc portion 24, the cylinders 5 are installed at intervals and two adjacent cylinders 5 are arranged in a staggered manner along a direction perpendicular to the rotation axis 31, and the transmission structure is wound around each of the cylinders 5 in sequence and fixed to the ends of the arc portion 24.

[0033] Specifically, by adding a plurality of cylinders 5 to the arc portion 24, the winding direction can be changed, for example, wound in a Z-shape, which is beneficial to the tension of the connecting belt or the connecting rope, and also helps prevent the connecting belt or the connecting rope from sliding. The number of cylinders 5 can be two, three, or four, which can be specifically selected according to actual needs. Preferably, there can be only one cylinder 5, and when the winding direction is changed by one cylinder 5, for example, wound in an L-shape. Preferably, two cylinders 5 are installed in a staggered pattern on the surface of the arc portion 24, which is easy to increase the tension effect of the connecting belt.

[0034] In this embodiment, the fixed base 1 includes a fixed base main body 101, a position limiting groove 102 formed by being recessed from the fixed base main body 101 in a direction away from the button assembly 2, and a stopper plate 103 detachably fixed in the position limiting groove 102, and the first transmission shaft 21 passes through the fixed base main body 101, the button assembly 2, and the stopper plate 103 in this order. By attaching the drive assembly 3 to one side of the fixed base main body 101, the button assembly 2 is attached between the fixed base main body 101 and the stopper plate 103, and the stopper plate 103 is detachably fixed in the position limiting groove 102, which makes it easy to attach the button assembly 2 and the rotating shaft 31.

[0035] Preferably, the stopper plate 103 and a side wall of the position limiting groove 102 that is spaced apart from the stopper plate 103 are fixedly connected via a plurality of bolts 12. Here, the number of the plurality of bolts 12 is two.

[0036] In this embodiment, the button assembly 2 further includes a first lubricating part 6 fitted onto the first transmission shaft 21. The inner rings of the two first lubricating parts 6 are fixed to both ends of the first transmission shaft 21, respectively, and the outer rings of the two first lubricating parts 6 are fixed to the fixed base body 101 and the stopper plate 103, respectively. By installing the two first lubricating parts 6 on both ends of the first transmission shaft 21, respectively, the first transmission shaft rotates smoothly, the frictional force is effectively reduced, and the force feedback effect of the rotating shaft 31 is high.

[0037] Preferably, the first lubricating portion 6 is a bearing, and the first transmission shaft 21 at the capstan and button 23 rotates in the bearing to reduce frictional force. Preferably, other materials with high surface lubricity, such as PTFE, PC, POM, etc., may be adopted.

[0038] Furthermore, the bearing is a ball bearing, which provides a high transmission effect between the ball bearing and the first transmission shaft 21 and can reduce frictional force.

[0039] Example 2

[0040] Based on Example 1, the fixed base 1 further includes a fixed plate 104 fixed in the position limiting groove 102, and the button assembly 2 further includes a swing link 241 extending from the button body 22 toward the direction approaching the arc portion 24, a second transmission shaft 243 supported by the fixed plate 104 and forming a pivot connection, and a gear 242 installed on one side of the fixed plate 104 and fixed to the second transmission shaft 243, the arc portion 24 is located on the other side of the fixed plate 104 and fixedly connected to the second transmission shaft, an internal tooth structure 2411 is installed at one end of the swing link 241 adjacent to the gear 242, and the gear 242 meshes with the internal tooth structure 2411, and both ends of the transmission structure 4 are respectively wound around the arc portion 24 and fixed to both ends of the arc portion 24. The driving assembly 3 drives the rotation of the pivot shaft 31, and the connecting belt or the connecting rope is wound around the pivot shaft 31 several times, so that both ends of the connecting belt or the connecting rope are respectively wound around the arcuate portions 24 on both sides of the capstan, and the arcuate portions 24 are connected to the gear 242, and the power is transmitted to the gear 242, which meshes with the internal tooth structure 2411 of the swing link 241 to drive the swing link 241 to rotate, and the swing link 241 is fixed to the button 23, so that the button 23 can rotate accordingly. The force output by the driving assembly 3 is amplified through the capstan and the gear 242 and transmitted to the button 23, generating a force on the finger. The button 23 can be driven to move in two directions, that is, the driving assembly 3 can generate a force that resists the spring, that is, it provides a force to pull the button 23 back.

[0041] Here, the stopper plate 103 and the fixed plate 104 are provided by being fitted into the position limiting groove 102 , and are fixedly connected to the fixed base main body 101 via a plurality of bolts 12 .

[0042] In this embodiment, the button assembly 2 further includes second lubricating parts 7 respectively fitted and fixed to both ends of the second transmission shaft 243. The inner rings of the two second lubricating parts 7 are respectively fixed to both ends of the second transmission shaft 243, and the outer rings of the two second lubricating parts 7 are respectively fixed to the fixed plate 104 and the fixed base body 101. By installing the two second lubricating parts 7 respectively on both ends of the second transmission shaft 243, the second transmission shaft rotates smoothly, the frictional force is effectively reduced, and the force feedback effect of the rotating shaft 31 is high.

[0043] Preferably, the second lubricating portion 7 is a bearing, and the second transmission shaft 243 of the capstan and button 23 rotates in the bearing to reduce frictional force. Preferably, other materials with high surface lubricity, such as PTFE, PC, POM, etc., may be adopted.

[0044] Furthermore, the bearing is a ball bearing, which provides a high transmission effect between the ball bearing and the second transmission shaft 243 and can reduce frictional force.

[0045] In this embodiment, the button assembly 2 further includes a position sensor 9, which is fixed to the fixed base 1 and connected to one end of the first transmission shaft 21. The first transmission shaft 21 is fixedly connected to the button body 22, and therefore an end of the first transmission shaft is connected to the position sensor 9. The first transmission shaft is rotated by pressing the button 23, and the magnitude of the rotation angle of the first transmission shaft can be obtained by the position sensor 9, and thus the rotation position of the button 23 can be obtained, and the position detection is excellent.

[0046] In this embodiment, the force feedback device further includes a torsion spring 10, which is fitted around the transmission shaft 21, one end of which abuts against the button 23, and the other end of which abuts against the lower end of the fixed base 1. By mounting the torsion spring 10 on one side of the button 23, the torsion spring 10 can provide a repulsive force to the button 23 when the driving assembly 3 is not actuated, and at the same time ensure the initial force of the button, and act as a restraining force of the button when the trigger is not actuated, ensuring a high experience effect of the button 23. The force feedback device of this embodiment can provide a resistance force after a finger acts on the button 23, and can also pull back the button 23, providing a bidirectional force, and has a high force feedback effect.

[0047] In this embodiment, a tension adjustment mechanism 11 is installed at one end of the arc portion 24 and a fixed end is installed at one end, one end of the transmission structure 4 is connected to the tension adjustment mechanism 11 and the other end is connected to the fixed end.

[0048] Preferably, the tension adjustment mechanism 11 is a tension adjustment screw connected to both ends of the connecting belt and used to adjust the tension of the connecting belt.

[0049] In this embodiment, the drive assembly 3 further includes a coupling 33 fixedly connected to an output end of the drive unit 32, and one end of the coupling 33 remote from the drive unit 32 is fixedly connected to one end of the rotating shaft 31. Preferably, the rotating shaft 31 may be directly connected to the output end of the drive unit 32, or may be connected to the output end of the drive unit 32 via the coupling 33, or may be a part of the output shaft of the drive unit 32.

[0050] Specifically, the drive assembly 3 further includes a third lubricating part 8 fitted onto the rotating shaft 31. The two third lubricating parts 8 are fitted onto both ends of the rotating shaft 31, respectively, and the two third lubricating parts 8 are fixed to the fixed base 1 and the stopper plate 103, respectively.

[0051] Preferably, the drive unit 32 is a motor, and the third lubricating portion 8 is a bearing, so that the rotating shaft 31 rotates in the bearing, reducing frictional force and further improving the output force of the motor. Preferably, other materials with high surface lubricity, such as PTFE, PC, POM, etc., may be adopted.

[0052] Furthermore, the bearing is a ball bearing, and the rotation effect between the ball bearing and the rotating shaft 31 is high, making it possible to reduce frictional force.

[0053] Compared with the related art, the force feedback device provided by the present invention is operated by rotatably installing a button assembly on a fixed base, the button assembly including a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button formed by extending from the circumferential side of the button body, and an arc part having an arc-shaped outer periphery and connected to the button body, the button body being supported on the fixed base via the first transmission shaft and forming a rotational connection. The drive assembly includes a drive unit fixed to one side of the fixed base and a rotation shaft connected to the drive unit, the rotation shaft being rotatably installed on the fixed base and facing the arc part. The transmission structure is installed around the rotation shaft, and both ends of the transmission structure extend along the arc part and are fixed to both ends of the arc part. When a button is pressed, the rotation shaft of the drive assembly drives the transmission structure in forward and reverse rotations, thereby realizing the force feedback effect of the button, and the overall space is compact, the friction resistance is small, and it is easy to improve the user's experience effect.

[0054] It should be noted that the above is merely an embodiment of the present invention, and those skilled in the art may make modifications without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention.

[0055] (Additional Note) (Appendix 1) 1. A force feedback device, comprising: The force feedback device includes a fixed base, a button assembly, a driving assembly, and a transmission structure; the button assembly includes a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button extending from the circumferential side of the button body, and a circular arc portion having an arc-shaped outer periphery and connected to the button body, the button body being supported by the fixed base via the first transmission shaft and forming a rotational connection; the drive assembly includes a drive unit fixed to one side of the fixed base and a rotating shaft connected to the drive unit, the rotating shaft being rotatably mounted on the fixed base and facing the arc portion; A force feedback device, characterized in that the transmission structure is circumferentially disposed around the rotating shaft, and both ends of the transmission structure extend along the arc portion and are fixed to both ends of the arc portion.

[0056] (Appendix 2) The force feedback device of claim 1, wherein the transmission structure is a connecting belt or a connecting rope.

[0057] (Appendix 3) 2. The force feedback device of claim 1, wherein the button body, the button and the arc portion are of an integrated structure.

[0058] (Appendix 4) The force feedback device of Appendix 1, characterized in that the button assembly further includes at least two cylinders fixed to the arc portion, the cylinders being spaced apart and two adjacent cylinders being staggered along a direction perpendicular to the rotation axis, and the transmission structure being wrapped around each cylinder in sequence and fixed to the end of the arc portion.

[0059] (Appendix 5) 5. The force feedback device of claim 4, wherein the cylinders are located on the same side of the rotation axis.

[0060] (Appendix 6) The force feedback device described in Appendix 1, characterized in that the fixed base includes a fixed base main body, a position limiting groove formed by being recessed from the fixed base main body in a direction away from the button assembly, and a stopper plate removably fixed within the position limiting groove, and the first transmission shafts located on opposite sides of the button body are respectively supported by the fixed base main body and the stopper plate and respectively form rotational connections.

[0061] (Appendix 7) The force feedback device described in Appendix 6, characterized in that the button assemblies further include first lubricating parts that are externally fitted and fixed to the first transmission shaft, and form a pivotal connection with the fixed base body and the stopper plate, respectively, via the first lubricating parts.

[0062] (Appendix 8) The force feedback device of Appendix 6, wherein the fixed base further includes a fixed plate fixed in the position limiting groove, and the button assembly further includes a one-side swing link extending from the button body in a direction approaching the arc portion, a second transmission shaft supported by the fixed plate and forming a pivotal connection, and a gear installed on one side of the fixed plate and fixed to the second transmission shaft, the arc portion being located on the other side of the fixed plate and fixedly connected to the second transmission shaft, and an internal tooth structure is installed on one end of the swing link adjacent to the gear, and the gear meshes with the internal tooth structure.

[0063] (Appendix 9) The force feedback device of claim 1, further comprising a position sensor, the position sensor being fixed to the fixed base and connected to one end of the first transmission shaft.

[0064] (Appendix 10) The force feedback device of claim 1, further comprising a torsion spring, the torsion spring being fitted onto the first transmission shaft, one end of the torsion spring abutting against the button, and the other end of the torsion spring abutting against the fixed base.

[0065] (Appendix 11) The force feedback device of claim 1, characterized in that two tension adjustment mechanisms are further installed on opposite ends of the arc portion, and both ends of the transmission structure are respectively connected to the two tension adjustment mechanisms. [Explanation of symbols]

[0066] 100 Force feedback device 1 Fixed base 101 Fixed base body 102 Position limiting groove 103 Stopper plate 104 Fixing plate 2 Button Assembly 21 First transmission shaft 22 Button body 23 Button 24 Arc section 241 Swing Link 2411 Internal tooth structure 242 Gear 243 Second transmission shaft 3 Drive Assembly 31 Rotating shaft 32 Drive unit 33 Coupling 4 Transmission structure 5 Cylinder 6 First Lubrication Section 7 Second Lubrication Section 8. Third Lubrication Section 9 Position Sensors 10 Torsion spring 11 Tension adjustment mechanism 12 Volts

Claims

1. 1. A force feedback device, comprising: The force feedback device includes a fixed base, a button assembly, a driving assembly, and a transmission structure; The button assembly includes a button body, a first transmission shaft protruding and extending from both opposing sides of the button body, a button extending from the circumferential side of the button body, and a circular arc portion having an arc-shaped outer periphery and connected to the button body, the button body being supported by the fixed base via the first transmission shaft and forming a rotational connection; the drive assembly includes a drive unit fixed to one side of the fixed base and a rotating shaft connected to the drive unit, the rotating shaft being rotatably mounted on the fixed base and facing the arc portion; The transmission structure is disposed around the rotating shaft, and both ends of the transmission structure extend along the arc portion and are fixed to both ends of the arc portion, respectively; the fixed base includes a fixed base body, a position limiting groove formed by being recessed from the fixed base body in a direction away from the button assembly, and a stopper plate detachably fixed in the position limiting groove, the first transmission shafts positioned on both opposing sides of the button body are supported by the fixed base body and the stopper plate, respectively, and are pivotally connected to each other, the fixed base further includes a fixed plate fixed in the position limiting groove, and the button assembly further includes a swing link extending from the button body in a direction approaching the arc portion, a second transmission shaft supported by the fixed plate and forming a pivotal connection, and a gear installed on one side of the fixed plate and fixed to the second transmission shaft, the arc portion being located on the other side of the fixed plate and fixedly connected to the second transmission shaft, and an internal tooth structure is installed on one end of the swing link adjacent to the gear, and the gear meshes with the internal tooth structure.

2. 2. The force feedback device according to claim 1, wherein the transmission structure is a connecting belt or a connecting rope.

3. 2. The force feedback device according to claim 1, wherein the button body, the button and the arcuate portion are of an integral structure.

4. 2. The force feedback device of claim 1, wherein the button assembly further comprises at least two cylinders fixed to the arc portion, the cylinders being spaced apart from each other and two adjacent cylinders being arranged in a staggered manner along a direction perpendicular to the rotation axis, and the transmission structure being wound around each cylinder in sequence and fixed to an end of the arc portion.

5. 5. The force feedback device according to claim 4, wherein the cylinders are located on the same side of the rotation axis.

6. The force feedback device according to claim 1, characterized in that the button assemblies further include first lubricating parts that are externally fitted and fixed to the first transmission shafts, and form pivotal connections with the fixed base body and the stopper plate, respectively, through the first lubricating parts.

7. 2. The force feedback device according to claim 1, further comprising a position sensor, the position sensor being fixed to the fixed base and connected to one end of the first transmission shaft.

8. 2. The force feedback device according to claim 1, further comprising a torsion spring, the torsion spring being fitted onto the first transmission shaft, one end of the torsion spring abutting against the button, and the other end of the torsion spring abutting against the fixed base.

9. 2. The force feedback device of claim 1, wherein two tension adjustment mechanisms are further installed on opposite ends of the arc portion, and both ends of the transmission structure are respectively connected to the two tension adjustment mechanisms.

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