Centering mechanism and simulated flight foot rudder

Abstract

The invention discloses a centering mechanism. The centering mechanism comprises a mounting base, a limiting piece, a first centering lever, a second centering lever and a tension spring, a main rotating shaft is rotationally connected to the mounting base, the limiting piece is provided with a fixed end, a first input end, a second input end and a limiting end, and the fixed end is fixedly connected with the main rotating shaft; the first centering lever is arranged between the first input end and the fixed end in a penetrating mode, and the second centering lever is arranged between the second input end and the fixed end in a penetrating mode. One end of the first centering lever is rotationally connected with the mounting base through a first auxiliary rotating shaft, and one end of the second centering lever is rotationally connected with the mounting base through a second auxiliary rotating shaft; the two ends of the tension spring are fixedly connected with the other end of the first centering lever and the other end of the second centering lever respectively. The invention further discloses a simulated flight foot rudder. The limiting piece is ingeniously used as a standard piece to achieve the centering function, manufacturing is easy, cost is low, and the device can be easily transplanted to simulated flight peripheral platforms of different forms.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of flight simulation, in particular to a centering mechanism and a simulated flight rudder pedal. BACKGROUND

[0002] The simulated flight rudder pedal is a device for realizing the simulation of the feeling of the aircraft control pedal in reality. The input of the user's foot movement is converted into a measurable physical quantity by a mechanism, and then the physical quantity is read by a sensor and converted into an electronic signal to be recognized by a computer. The core mechanism of the rudder pedal is the centering mechanism, which aims to simulate the yawing moment fed back to the real aircraft rudder pedal in reality. The working principle of the centering mechanism is that when the user steps on one side of the foot pedal, the other side of the foot pedal is lifted at the same time, and both sides of the foot pedal will be subjected to the centering moment of the centering mechanism. However, in the prior art, the centering is mostly achieved by a cam mechanism. Therefore, the core components must be machined by CNC to obtain a high-quality cam surface, which is relatively high in cost. Moreover, the existing centering mechanisms are mostly custom-designed and non-modular, which has poor versatility. SUMMARY

[0003] The purpose of the present application is to provide a centering mechanism and a simulated flight rudder pedal, which ingeniously uses a limiting piece as a standard part to realize the centering function, is simple to manufacture and low in cost, and is easy to transplant to different forms of simulated flight peripheral platforms.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application in one aspect is: A centering mechanism, comprising a mounting base, a limiting piece, a first centering lever, a second centering lever and a tension spring; A main rotating shaft is vertically arranged on the mounting base, and the main rotating shaft is rotatably connected to the middle part of the mounting base. The limiting piece is provided with a fixed end, a first input end, a second input end and a limiting end. The first input end and the second input end are symmetrically arranged with the fixed end. The first input end, the second input end and the fixed end are located on the same line. The line between the limiting end and the fixed end is perpendicular to the line of the first input end, the second input end and the fixed end. The main rotating shaft is fixedly connected with the fixed end. The first return lever and the second return lever are horizontally arranged, the first return lever is arranged between the first input end and the fixed end, and the second return lever is arranged between the second input end and the fixed end; one end of the first return lever is rotatably connected to the mounting base through a first auxiliary rotating shaft, one end of the second return lever is rotatably connected to the mounting base through a second auxiliary rotating shaft, and the main rotating shaft is arranged in parallel with the first auxiliary rotating shaft and the second auxiliary rotating shaft; the two ends of the tension spring are fixedly connected to the other end of the first return lever and the other end of the second return lever respectively; the limiting end is arranged between the first return lever and the second return lever and close to one side of the tension spring. Pushing the first input end or the second input end can drive the limiting part to rotate forward relative to the second return lever, the second return lever abuts against the fixed end, the limiting end abuts against the first return lever first, and when the limiting part rotates forward to a preset angle, the first return lever abuts against the first input end, so that limiting is realized; conversely, pushing the first input end or the second input end can drive the limiting part to rotate reversely relative to the first return lever, the first return lever abuts against the fixed end, the limiting end abuts against the second return lever first, and when the limiting part rotates reversely to a preset angle, the second return lever abuts against the second input end, so that limiting is realized.

[0005] As a preferred solution of the return mechanism, the limiting part comprises an upper connecting plate, a lower connecting plate, a first input shaft, a second input shaft and a limiting abutting column, the upper connecting plate and the lower connecting plate are arranged in an upper-lower interval to form a passing space for the return lever, the main rotating shaft passes through the upper connecting plate and the lower connecting plate in sequence, the first input shaft is vertically connected between the upper connecting plate and the lower connecting plate and forms the first input end, the second input shaft is vertically connected between the upper connecting plate and the lower connecting plate and forms the second input end, and the limiting abutting column is connected between the upper connecting plate and the lower connecting plate and forms the limiting end.

[0006] As a preferred solution of the return mechanism, the mounting base comprises an upper mounting plate, a lower mounting plate and four fixing parts, the upper mounting plate and the lower mounting plate are arranged in an upper-lower interval to form a mounting space for connecting the installation part of the simulated flight rudder, and the four fixing parts are fixedly arranged at four corners of the mounting space respectively; the main rotating shaft passes through the lower mounting plate, the upper mounting plate, the lower connecting plate and the upper connecting plate in sequence.

[0007] As a preferred solution of the above-mentioned back mechanism, the main rotating shaft comprises a main connecting bolt, a first main connecting nut, a second main connecting nut, a first bearing and a second bearing, the main connecting bolt is sequentially provided through the lower mounting plate, the upper mounting plate, the lower connecting plate and the upper connecting plate; The connection between the main connecting bolt and the upper mounting plate is connected through the first bearing, and the connection between the main connecting bolt and the lower mounting plate is connected through the second bearing; the first bearing is provided with a first limiting shoulder, the first limiting shoulder abuts against the upper surface of the upper mounting plate, the main connecting bolt is threadedly connected with the first main connecting nut, and the first bearing is pressed on the upper mounting plate; the second bearing is provided with a second limiting shoulder, the second limiting shoulder abuts against the lower surface of the lower mounting plate, and the threaded end of the main connecting bolt presses the second bearing on the lower mounting plate; the outer periphery of the main connecting bolt is provided with a first shaft sleeve, the first shaft sleeve separates the upper connecting plate from the lower connecting plate; the main connecting bolt is threadedly connected with the second main connecting nut, and the upper connecting plate and the lower connecting plate are locked.

[0008] As a preferred solution of the above-mentioned back mechanism, the first auxiliary rotating shaft and the second auxiliary rotating shaft are structurally identical, and each comprises an auxiliary connecting bolt, a first auxiliary connecting nut and a second auxiliary connecting nut, the auxiliary connecting bolt is sequentially provided through the lower mounting plate and the upper mounting plate; the outer periphery of the auxiliary connecting bolt is provided with a second shaft sleeve, the second shaft sleeve separates the upper mounting plate from the lower mounting plate; the auxiliary connecting bolt is threadedly connected with the first auxiliary connecting nut and the second auxiliary connecting nut from bottom to top, the first auxiliary connecting nut fixes the auxiliary connecting bolt on the upper mounting plate and the lower mounting plate; the auxiliary connecting bolt is rotationally connected with the first back lever or the second back lever, and the first back lever or the second back lever is located between the first auxiliary connecting nut and the second auxiliary connecting nut.

[0009] As a preferred solution of the above-mentioned back mechanism, the first back lever is a first eye bolt, the eye of the first eye bolt is rotationally connected with the first auxiliary rotating shaft, and a third shaft sleeve is provided on the end of the first eye bolt away from the eye; the second back lever is a second eye bolt, the eye of the second eye bolt is rotationally connected with the second auxiliary rotating shaft, and a fourth shaft sleeve is provided on the end of the second eye bolt away from the eye.

[0010] As a preferred solution of the above-mentioned back mechanism, a first thrust bearing is arranged between the first auxiliary connecting nut and the first back lever or the second back lever, and a gasket is arranged between the first thrust bearing and the first auxiliary connecting nut; a second thrust bearing is arranged between the second auxiliary connecting nut and the first back lever or the second back lever.

[0011] As the preferred solution of the above return mechanism, a magnet for outputting a rotating magnetic field signal is mounted on the main rotating shaft; a single-chip microcomputer is connected to the bottom of the mounting base, and a linear Hall sensor for converting the rotating magnetic field signal into an electric signal and transmitting it to a computer is arranged in the single-chip microcomputer.

[0012] In addition, in order to achieve the above-mentioned purpose, the technical scheme adopted by the present application in another aspect is: A simulated flight rudder comprises a foot pedal mechanism and the return mechanism described above, wherein the foot pedal mechanism comprises a connecting base, a first foot pedal, a second foot pedal, a first connecting rod, a second connecting rod, a first push rod and a second push rod, and the return mechanism is mounted on the connecting base; one end of the first connecting rod is rotationally connected to one side of the connecting base, the other end of the first connecting rod is connected to the first foot pedal, the middle part of the first connecting rod is rotationally connected to one end of the first push rod, and the other end of the first push rod is rotationally connected to the first input end; one end of the second connecting rod is rotationally connected to the other side of the connecting base, the other end of the second connecting rod is connected to the second foot pedal, the middle part of the second connecting rod is rotationally connected to one end of the second push rod, and the other end of the second push rod is rotationally connected to the second input end.

[0013] The return mechanism and the simulated flight rudder provided by the present application have the following beneficial effects compared with the prior art: The present application ingeniously uses a limiting piece as a standard part to realize the return function, which saves the CNC machining process, is simple to manufacture and has a low cost compared with the cam mechanism used in the prior art to realize the return function. In addition, the limiting piece has the advantage of modularity, is simple to install, is easy to transplant to different forms of simulated flight peripheral platforms, and is easy to maintain and replace. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0015] Figure 1 is a structural schematic view of a return mechanism provided by the present application in a viewing direction; Figure 2 is a top view of the structure shown in Figure 1 ; Figure 3 is a sectional view in the A-A direction of the structure shown in Figure 2 ; Figure 4 is a partial sectional view of the first secondary rotating shaft and the second secondary rotating shaft; Figure 5 is a working state schematic view of the limiting piece; Figure 6 is a structural schematic diagram of a flight rudder simulation structure provided by an embodiment of the present application.

[0016] Marked in the figure: mounting base 100; main rotating shaft 110; main connecting bolt 111; first main connecting nut 112; second main connecting nut 113; first bearing 114; second bearing 115; first limiting shaft shoulder 116; second limiting shaft shoulder 117; screw head 118; first shaft sleeve 119; secondary rotating shaft 120; secondary connecting bolt 121; first secondary connecting nut 122; second secondary connecting nut 123; second shaft sleeve 124; first thrust bearing 125; second thrust bearing 126; washer 127; second secondary rotating shaft 130; upper mounting plate 140; lower mounting plate 150; fixing member 160; upper locking screw 161; mounting space 170; limiting member 200; fixed end 210; first input end 220; first input shaft 221; second input end 230; second input shaft 231; limiting end 240; limiting abutting column 241; upper connecting plate 250; lower connecting plate 260; through space 270; first centering lever (first eye bolt) 300; third shaft sleeve 301; second centering lever (second eye bolt) 400; fourth shaft sleeve 401; tension spring 500; magnet 600; single-chip microcomputer 700; foot pedal mechanism 800; connecting base 810; first foot pedal 820; second foot pedal 830; first connecting rod 840; second connecting rod 850; first push rod 860; second push rod 870. DETAILED DESCRIPTION

[0017] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0018] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. It should be understood that the terms "first", "second", etc. are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0019] Please refer to Figures 1 to 5The embodiment of the present application provides a centering mechanism in one aspect, which comprises a mounting base 100, a limiting piece 200, a first centering lever 300, a second centering lever 400 and a tension spring 500.

[0020] The mounting base 100 is vertically provided with a main rotating shaft 110, which is rotatably connected to the middle part of the mounting base 100; the limiting piece 200 is provided with a fixed end 210, a first input end 220, a second input end 230 and a limiting end 240, the first input end 220 and the second input end 230 are symmetrically arranged with the fixed end 210, and the first input end 220, the second input end 230 and the fixed end 210 are located on the same line; the line between the limiting end 240 and the fixed end 210 is perpendicular to the line of the first input end 220, the second input end 230 and the fixed end 210; and the main rotating shaft 110 is fixedly connected with the fixed end 210.

[0021] The first centering lever 300 and the second centering lever 400 are both horizontally arranged, the first centering lever 300 is arranged between the first input end 220 and the fixed end 210, and the second centering lever 400 is arranged between the second input end 230 and the fixed end 210; one end of the first centering lever 300 is rotatably connected with the mounting base 100 through a first secondary rotating shaft 120, one end of the second centering lever 400 is rotatably connected with the mounting base 100 through a second secondary rotating shaft 130, and the main rotating shaft 110 is arranged in parallel with the first secondary rotating shaft 120 and the second secondary rotating shaft 130; the other end of the first centering lever 300 and the other end of the second centering lever 400 are fixedly connected with the two ends of the tension spring 500; and the limiting end 240 is arranged between the first centering lever 300 and the second centering lever 400 and close to one side of the tension spring 500.

[0022] Pushing the first input terminal 220 or the second input terminal 230 can cause the limiting member 200 to rotate forward relative to the second centering lever 400. The second centering lever 400 is close to the fixed end 210, so that the limiting end 240 first abuts against the first centering lever 300. When the limiting member 200 rotates forward to a preset angle, the first centering lever 300 can abut against the first input terminal 220, thus achieving the limiting position. Conversely, pushing the first input terminal 220 or the second input terminal 230 can cause the limiting member 200 to rotate in the opposite direction relative to the first centering lever 300. The first centering lever 300 is close to the fixed end 210, so that the limiting end 240 first abuts against the second centering lever 400. When the limiting member 200 rotates in the opposite direction to a preset angle, the second centering lever 400 can abut against the second input terminal 230, thus achieving the limiting position.

[0023] In implementing the centering mechanism of the present invention, the first input terminal 220 and the second input terminal 230 respectively receive inputs from the two foot pedals (i.e., the first foot pedal 820 and the second foot pedal 830 described below) of the foot pedal mechanism in the simulated flight foot pedals, such as... Figure 5 As shown, taking the pushing of the first input terminal 220 or the second input terminal 230 to drive the limiting member 200 to rotate in the forward direction relative to the second return lever 400 as an example, the specific working process is as follows: when one side foot pedal (that side pedal is not in the position of the pedal) Figure 5 As shown in the diagram, when the pedal (corresponding to the right side of the limiting member 200) is depressed, the connecting rod and push rod on the rudder cause the limiting member 200 to rotate forward relative to the second centering lever 400. The second centering lever 400 is close to the fixed end 210, so that the limiting end 240 first abuts against the first centering lever 300. When the limiting member 200 rotates forward to a preset angle, the first centering lever 300 can abut against the first input end 220, achieving the limiting position. At this time, the tension spring 500 is stretched, and under the action of the spring force, the limiting member 200 will have a tendency to center back, which will eventually feed back to the other pedal (which is not in the center position). Figure 5 As shown in the diagram, it is positioned on the left side of the limiting member 200, forming a return force. When one side pedal is slowly released (this side pedal is not in the center position), Figure 5 As shown in the figure, when the corresponding position is set on the right side of the limiting member, the external force of the tension spring 500 is removed, so that the first centering lever 300 and the second centering lever 400 are reset, thus realizing the centering function.

[0024] As can be seen, the present invention cleverly uses the limiting component 200 as a standard component to achieve the centering function. Compared with the prior art, which uses a cam mechanism to achieve the centering function, it eliminates the CNC machining process, making it simple to manufacture and lower in cost. Secondly, the limiting component 200 also has the advantage of modularity, which makes it easy to install, easy to be transferred to different types of flight simulation peripheral platforms, and easy to maintain and replace.

[0025] In the embodiment, the specific structure of the limiting member 200 is that the limiting member 200 comprises an upper connecting plate 250, a lower connecting plate 260, a first input shaft 221, a second input shaft 231 and a limiting abutting column 241, the upper connecting plate 250 and the lower connecting plate 260 are arranged in an upper-lower interval to form a passing space 270 for the center returning lever to pass through; the main rotating shaft 110 is sequentially passed through the upper connecting plate 250 and the lower connecting plate 260; the first input shaft 221 is vertically connected between the upper connecting plate 250 and the lower connecting plate 260 and forms the first input end 220; the second input shaft 231 is vertically connected between the upper connecting plate 250 and the lower connecting plate 260 and forms the second input end 230; the limiting abutting column 241 is connected between the upper connecting plate 250 and the lower connecting plate 260 and forms the limiting end 240. Further, the limiting abutting column 241 is composed of a fifth shaft sleeve and a self-lubricating copper bearing (not shown in the figure) arranged on the fifth shaft sleeve, wherein the fifth shaft sleeve plays a supporting role, and the self-lubricating copper bearing can freely rotate relative to the fifth shaft sleeve, thereby preventing the fifth shaft sleeve from being stuck with the first center returning lever 300 or the second center returning lever 400.

[0026] In the embodiment, the specific structure of the mounting base 100 is that the mounting base 100 comprises an upper mounting plate 140, a lower mounting plate 150 and four fixing members 160, the upper mounting plate 140 and the lower mounting plate 150 are arranged in an upper-lower interval to form a mounting space 170 for the connecting of the simulated flight rudder mounting part, and the four fixing members 160 are respectively fixedly arranged at the four corners of the mounting space 170; the main rotating shaft 110 is sequentially passed through the lower mounting plate 150, the upper mounting plate 140, the lower connecting plate 260 and the upper connecting plate 250. It should be noted that, during specific installation, the fixing member 160 passes through the simulated flight rudder mounting part (i.e. the connecting base 810 of the foot pedal mechanism 800), the upper end of the fixing member 160 is locked on the upper mounting plate 140 by the upper locking screw 161, and the lower end of the fixing member 160 is locked on the lower mounting plate 150 by the lower locking screw.

[0027] In the embodiment, the specific structure of the main rotating shaft 110 is that the main rotating shaft 110 comprises a main connecting bolt 111, a first main connecting nut 112, a second main connecting nut 113, a first bearing 114 and a second bearing 115, the main connecting bolt 111 is sequentially arranged through the lower mounting plate 150, the upper mounting plate 140, the lower connecting plate 260 and the upper connecting plate 250, the connection between the main connecting bolt 111 and the upper mounting plate 140 is connected through the first bearing 114, the connection between the main connecting bolt 111 and the lower mounting plate 150 is connected through the second bearing 115, the first bearing 114 and the second bearing 115 are sleeved on the outer periphery of the main connecting bolt 111, the first bearing 114 is provided with a first limiting shaft shoulder 116, the first limiting shaft shoulder 116 abuts against the upper surface of the upper mounting plate 140, the main connecting bolt 111 is threadedly connected with the first main connecting nut 112, and the first bearing 114 is pressed on the upper mounting plate 140, the second bearing 115 is provided with a second limiting shaft shoulder 117, the second limiting shaft shoulder 117 abuts against the lower surface of the lower mounting plate 150, the screw head 118 of the main connecting bolt 111 presses the second bearing 115 on the lower mounting plate 150, the outer periphery of the main connecting bolt 111 is sleeved with a first shaft sleeve 119, the first shaft sleeve 119 separates the upper connecting plate 250 from the lower connecting plate 260, and the main connecting bolt 111 is threadedly connected with the second main connecting nut 113 to lock the upper connecting plate 250 and the lower connecting plate 260.

[0028] In the embodiment, the first auxiliary rotating shaft 120 and the second auxiliary rotating shaft 130 are the same in structure, specifically, the first auxiliary rotating shaft 120 and the second auxiliary rotating shaft 130 each comprise an auxiliary connecting bolt 121, a first auxiliary connecting nut 122 and a second auxiliary connecting nut 123, the auxiliary connecting bolt 121 is sequentially arranged through the lower mounting plate 150 and the upper mounting plate 140, the outer periphery of the auxiliary connecting bolt 121 is sleeved with a second shaft sleeve 124, the second shaft sleeve 124 separates the upper mounting plate 140 from the lower mounting plate 150, the auxiliary connecting bolt 121 is threadedly connected with the first auxiliary connecting nut 122 and the second auxiliary connecting nut 123 from bottom to top, the first auxiliary connecting nut 122 fixes the auxiliary connecting bolt 121 on the upper mounting plate 140 and the lower mounting plate 150, the auxiliary connecting bolt 121 is rotationally connected with the first intermediate lever 300 or the second intermediate lever 400, and the first intermediate lever 300 or the second intermediate lever 400 is located between the first auxiliary connecting nut 122 and the second auxiliary connecting nut 123.

[0029] Further, the first sub-connection nut 122 is provided with a first thrust bearing 125 between the first back-in lever 300 or the second back-in lever 400, and the first sub-connection nut 122 is provided with a washer 127 between the first thrust bearing 125 and the first sub-connection nut 122; the second sub-connection nut 123 is provided with a second thrust bearing 126 between the first back-in lever 300 or the second back-in lever 400. While bearing axial compression force, it ensures that the back-in lever can rotate flexibly, avoids wear and jam, and improves the service life and reliability of the mechanism.

[0030] For example, the first back-in lever 300 is a first eye bolt, the eye of the first eye bolt is rotatably connected with the first sub-rotating shaft 120, and a third shaft sleeve 301 is sleeved on the end of the first eye bolt away from the eye; the second back-in lever 400 is a second eye bolt, the eye of the second eye bolt is rotatably connected with the second sub-rotating shaft 130, and a fourth shaft sleeve 401 is sleeved on the end of the second eye bolt away from the eye. It should be noted that the third shaft sleeve 301 is sleeved on the threaded portion of the first eye bolt, and the fourth shaft sleeve 401 is sleeved on the threaded portion of the second eye bolt, so that the third shaft sleeve 301 and the fourth shaft sleeve 401 can play a protective role, thereby preventing the threads of the first eye bolt and the threads of the second eye bolt from directly contacting the self-lubricating copper bearing (not shown in the figure) of the limiting abutting column 241.

[0031] For example, as shown in Figure 3 The main rotating shaft 110 is provided with a magnet 600 for outputting a rotating magnetic field signal, i.e., the displacement of the limiting member 200 and the main rotating shaft 110 can be detected. In this embodiment, the magnet 600 is arranged at the end of the screw head 118 of the main connection bolt 111. Such mounting mode has good consistency and is convenient for subsequent debugging; the main rotating shaft 110 is provided with a magnet 600 for outputting a rotating magnetic field signal; the bottom of the installation base 100 is connected with a single-chip microcomputer 700, and the single-chip microcomputer 700 is provided with a linear Hall sensor for converting the rotating magnetic field signal into an electric signal and transmitting it to a computer.

[0032] Please refer to Figure 6In another aspect, the embodiment of the present application provides a flight simulation rudder, which comprises a foot mechanism 800 and the centering mechanism described above, the foot mechanism 800 comprises a connecting base 810, a first foot pedal 820, a second foot pedal 830, a first connecting rod 840, a second connecting rod 850, a first push rod 860 and a second push rod 870, and the centering mechanism is installed on the connecting base 810; one end of the first connecting rod 840 is rotatably connected to one side of the connecting base 810, the other end of the first connecting rod 840 is connected with the first foot pedal 820, the middle part of the first connecting rod 840 is rotatably connected to one end of the first push rod 860, and the other end of the first push rod 860 is rotatably connected to the first input end 220; one end of the second connecting rod 850 is rotatably connected to the other side of the connecting base 810, the other end of the second connecting rod 850 is connected with the second foot pedal 830, the middle part of the second connecting rod 850 is rotatably connected to one end of the second push rod 870, and the other end of the second push rod 870 is rotatably connected to the second input end 230.

[0033] It should be noted that, since the flight simulation rudder applies the centering mechanism described above, it has the same technical effects as the centering mechanism described above, which will not be repeated here.

[0034] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The above is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, which should also be regarded as the protection scope of the present application.

Claims

1. A centering mechanism, characterized in that, Includes mounting base, limiting component, first return lever, second return lever, and tension spring; A main rotating shaft is erected on the mounting base and rotatably connected to the middle of the mounting base. The limiting member has a fixed end, a first input end, a second input end, and a limiting end. The first input end and the second input end are symmetrically arranged with respect to the fixed end, and the first input end, the second input end, and the fixed end are all located on the same line. The line connecting the limiting end and the fixed end is perpendicular to the line connecting the first input end, the second input end, and the fixed end. The main rotating shaft is fixedly connected to the fixed end. Both the first and second return levers are horizontally arranged. The first return lever passes between the first input end and the fixed end, and the second return lever passes between the second input end and the fixed end. One end of the first return lever is rotatably connected to the mounting base via a first auxiliary rotating shaft, and one end of the second return lever is rotatably connected to the mounting base via a second auxiliary rotating shaft. The main rotating shaft is arranged parallel to both the first and second auxiliary rotating shafts. Both ends of the tension spring are fixedly connected to the other ends of the first and second return levers, respectively. The limiting end is located between the first and second return levers and is close to the tension spring. Pushing the first input end or the second input end can cause the limiting member to rotate forward relative to the second centering lever. The second centering lever is close to the fixed end, so that the limiting end first abuts against the first centering lever. When the limiting member rotates forward to a preset angle, the first centering lever abuts against the first input end, thus achieving the limiting position. Conversely, pushing the first input end or the second input end can cause the limiting member to rotate in the opposite direction relative to the first centering lever. The first centering lever is close to the fixed end, so that the limiting end first abuts against the second centering lever. When the limiting member rotates in the opposite direction to a preset angle, the second centering lever abuts against the second input end, thus achieving the limiting position.

2. The centering mechanism according to claim 1, characterized in that, The limiting component includes an upper connecting plate, a lower connecting plate, a first input shaft, a second input shaft, and a limiting abutment post. The upper connecting plate and the lower connecting plate are arranged vertically at intervals to form a through space for the centering lever to pass through. The main rotating shaft passes through the upper connecting plate and the lower connecting plate in sequence. The first input shaft is vertically connected between the upper connecting plate and the lower connecting plate and forms the first input end. The second input shaft is vertically connected between the upper connecting plate and the lower connecting plate and forms the second input end. The limiting abutment post is connected between the upper connecting plate and the lower connecting plate and forms the limiting end.

3. The centering mechanism according to claim 2, characterized in that, The mounting base includes an upper mounting plate, a lower mounting plate, and four fixing components. The upper mounting plate and the lower mounting plate are arranged vertically at intervals to form an installation space for connecting the simulated flight foot rudder mounting parts. The four fixing components are respectively fixedly installed at the four corners of the installation space. The main rotation shaft passes through the lower mounting plate, the upper mounting plate, the lower connecting plate, and the upper connecting plate in sequence.

4. The centering mechanism according to claim 3, characterized in that, The main rotating shaft includes a main connecting bolt, a first main connecting nut, a second main connecting nut, a first bearing, and a second bearing. The main connecting bolt passes through the lower mounting plate, the upper mounting plate, the lower connecting plate, and the upper connecting plate in sequence. The connection between the main connecting bolt and the upper mounting plate is via the first bearing, and the connection between the main connecting bolt and the lower mounting plate is via the second bearing. The first bearing has a first limiting shoulder that abuts against the upper surface of the upper mounting plate. The main connecting bolt is threadedly connected to the first main connecting nut, pressing the first bearing onto the upper mounting plate. The second bearing has a second limiting shoulder that abuts against the lower surface of the lower mounting plate. The threaded head of the main connecting bolt presses the second bearing onto the lower mounting plate. A first bushing is fitted around the outer circumference of the main connecting bolt, separating the upper connecting plate from the lower connecting plate. The main connecting bolt is threadedly connected to the second main connecting nut, locking the upper connecting plate and the lower connecting plate together.

5. The centering mechanism according to claim 4, characterized in that, The first and second auxiliary rotating shafts have the same structure and both include an auxiliary connecting bolt, a first auxiliary connecting nut, and a second auxiliary connecting nut. The auxiliary connecting bolt passes through the lower mounting plate and the upper mounting plate in sequence. A second bushing is fitted around the outer periphery of the auxiliary connecting bolt, and the second bushing separates the upper mounting plate from the lower mounting plate. The auxiliary connecting bolt is threaded with the first auxiliary connecting nut and the second auxiliary connecting nut from bottom to top. The first auxiliary connecting nut fixes the auxiliary connecting bolt on the upper mounting plate and the lower mounting plate. The auxiliary connecting bolt is rotatably connected to the first return lever or the second return lever, and the first return lever or the second return lever is located between the first auxiliary connecting nut and the second auxiliary connecting nut.

6. The centering mechanism according to claim 5, characterized in that, A first thrust bearing is provided between the first auxiliary connecting nut and the first return lever or the second return lever, and a washer is provided between the first thrust bearing and the first auxiliary connecting nut; a second thrust bearing is provided between the second auxiliary connecting nut and the first return lever or the second return lever.

7. The centering mechanism according to claim 1, characterized in that, The first return lever is a first eye bolt, the eye of the first eye bolt is rotatably connected to the first auxiliary rotating shaft, and a third bushing is fitted on the end of the first eye bolt away from its eye; the second return lever is a second eye bolt, the eye of the second eye bolt is rotatably connected to the second auxiliary rotating shaft, and a fourth bushing is fitted on the end of the second eye bolt away from its eye.

8. The centering mechanism according to claim 1, characterized in that, A magnet for outputting a rotating magnetic field signal is installed on the main rotating shaft; a microcontroller is connected to the bottom of the mounting base, and the microcontroller contains a linear Hall sensor for converting the rotating magnetic field signal into an electrical signal and transmitting it to a computer.

9. A simulated flight rudder, characterized in that, The device includes a foot pedal mechanism and a centering mechanism as described in any one of claims 1-8. The foot pedal mechanism includes a connecting base, a first foot pedal, a second foot pedal, a first connecting rod, a second connecting rod, a first push rod, and a second push rod. The centering mechanism is mounted on the connecting base. One end of the first connecting rod is rotatably connected to one side of the connecting base, and the other end of the first connecting rod is connected to the first foot pedal. The middle portion of the first connecting rod is rotatably connected to one end of the first push rod, and the other end of the first push rod is rotatably connected to the first input end. One end of the second connecting rod is rotatably connected to the other side of the connecting base, and the other end of the second connecting rod is connected to the second foot pedal. The middle portion of the second connecting rod is rotatably connected to one end of the second push rod, and the other end of the second push rod is rotatably connected to the second input end.

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