Feedback linkage brake system, chassis system and medical equipment

Abstract

The utility model discloses a feedback linkage brake system, a chassis system and medical equipment, and relates to the technical field of braking, and the feedback linkage brake system comprises a linkage device, a detection device and a plurality of line-driven brake devices; the linkage device comprises a device main body, a pedal plate, a linkage elastic piece, a moving piece and a connecting piece; the pedal is rotationally arranged on the device main body, and one end away from the pedal part is connected with the moving piece through a connecting piece; the moving part is movably installed on the device body and connected with the brake device through a brake cable. The linkage elastic piece is connected between the moving piece and the device body and used for providing elastic acting force for resetting of the moving piece. The detection device is used for detecting the moving position of the moving piece or detecting the swing position of the pedal part. The technical problems that an existing manual braking system is insufficient in braking force and unstable in equipment can be solved, and the technical problem that an electronic braking system is limited by the performance of electronic elements and cannot timely and accurately respond to the braking requirement can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake, in particular to a feedback linkage brake system, a chassis system and a medical device. BACKGROUND

[0002] The brake system has a key application in medical devices (especially for wheelchairs and mobile auxiliary devices), which provides reliable braking to ensure the safe and stable operation of the device and improve the accuracy of medical operations and patient experience.

[0003] The brake system used by the existing medical device mainly includes:

[0004] 1. Manual brake system: The traditional manual brake system usually controls one moving wheel with a set of brake device (such as the nursing bed moving wheel disclosed in the Chinese patent with the publication number CN207120621U). When in use, the brake device is manually operated by the nursing staff or user to apply the corresponding moving wheel braking force. This system needs to operate the brake device on the moving wheel one by one, which is cumbersome. Moreover, extra attention is needed when in use to ensure that the vehicle can be effectively locked when parked. In order to reduce the operation complexity, brake devices are usually installed only on the rear two moving wheels. However, in some complex or uneven environments, this rear two-wheel brake design may not provide enough braking force, especially on slopes or inclined surfaces, which may cause the device to be unstable.

[0005] 2. Electronic brake system: Some modern medical devices use electronically controlled brake systems, which automatically adjust the braking force through motors and sensors. For example: electric wheelchair. However, this system may fail when there is no power, power failure or battery depletion, and its response speed is limited by the performance of electronic components.

[0006] Therefore, it is urgent to provide an improved scheme to solve the technical problems of insufficient braking force and unstable device of the existing manual brake system, and the technical problem of the electronic brake system that cannot respond to the braking demand in time and accurately due to the performance constraints of electronic components. CONTENT OF THE INVENTION

[0007] Therefore, the purpose of the present application is to provide a feedback linkage brake system to solve the technical problems of insufficient braking force and unstable device of the existing manual brake system, and the technical problem of the electronic brake system that cannot respond to the braking demand in time and accurately due to the performance constraints of electronic components.

[0008] To achieve the above technical purpose, the present application provides a feedback linkage brake system, which includes a linkage device, a detection device and a plurality of line-driven brake devices.

[0009] The linkage device comprises a device body, a foot pedal, a linkage elastic member, a moving member and a connecting member;

[0010] The foot pedal is rotatably arranged on the device body, and one end away from the pedal part is connected to the moving member through the connecting member;

[0011] The moving member is movably arranged on the device body, and is connected to the wire-driven brake device through a brake cable;

[0012] The linkage elastic member is connected between the moving member and the device body, and is used to provide elastic force for resetting the moving member;

[0013] The foot pedal is used to drive the moving member to move by changing the swing position of the pedal part, thereby tightening or releasing the brake cable, and then controlling the wire-driven brake device to perform brake action or release brake action through the brake cable;

[0014] The detection device is used to detect the moving position of the moving member or the swing position of the pedal part.

[0015] Further, the moving member is arranged on one side of the foot pedal, and is slidably connected to the device body along a straight line direction close to the side away from the foot pedal.

[0016] Further, the connecting member is a connecting rod, one end of which is rotatably connected to one end of the foot pedal away from the pedal part, and the other end is rotatably connected to the moving member.

[0017] Further, the linkage elastic member is a tension spring, one end of which is connected to the moving member, and the other end is connected to the device body.

[0018] The linkage elastic member is at least two, and is symmetrically arranged relative to the connecting member.

[0019] Further, the device body comprises a first mounting seat and a second mounting seat.

[0020] The moving member is movably arranged on the first mounting seat.

[0021] The foot pedal is rotatably arranged on the second mounting seat.

[0022] Further, the detection device is a displacement sensor, which is arranged on the device body or the moving member, and is used to detect the moving position of the moving member.

[0023] Further, the wire-driven brake device comprises a brake elastic member, a driving brake tooth and a driven brake tooth.

[0024] The driving brake gear sleeve is installed on the connecting shaft and can move along the axial direction of the connecting shaft;

[0025] The driven brake gear is fixed on the movable wheel member connected with the connecting shaft and can engage with the driving brake gear;

[0026] The brake elastic member is connected between the driving brake gear and the connecting shaft to provide elastic force for the movement of the driving brake gear to engage with the driven brake gear;

[0027] The brake line is connected to the driving brake gear to drive the driving brake gear to move away from the driven brake gear to disengage with the driven brake gear.

[0028] The application also discloses a chassis system, comprising a chassis body and the feedback linkage brake system;

[0029] At least two movable wheel members are installed on the chassis body;

[0030] The linkage device of the feedback linkage brake system is installed on the chassis body;

[0031] The line-driven brake device of the feedback linkage brake system is at least two and one-to-one connected with the movable wheel members to control the braking of the movable wheel members.

[0032] Further, the movable wheel members are four and are divided into two groups, which are distributed in front and back;

[0033] The two movable wheel members distributed in the front end are unidirectional wheels;

[0034] The two movable wheel members distributed in the rear end are universal wheels.

[0035] The application also discloses a medical device, comprising a device body and the chassis system;

[0036] The device body is installed on the chassis system.

[0037] From the above technical solutions, the feedback linkage brake system designed by the application has the following beneficial effects:

[0038] 1. Based on the tensioning and releasing of the brake line to control the operation of the line-driven brake device, mechanical brake control is realized. Compared with electronic components, the application is not subject to the performance of power supply and other electronic components, and can timely and accurately respond to braking requirements in any environment.

[0039] 2. Combined with the intelligent monitoring assistance of the detection device, the running state can be fed back in real time in a relatively complex or uneven environment, the risk of patient falling due to improper operation is reduced, and the safety during use is significantly enhanced.

[0040] 3. The linkage device can realize simultaneous tensioning or releasing of multiple brake lines to control multiple line-driven brake devices, realize multi-wheel brake control, ensure brake effect, and the control mode is driving pedal control, which is simple and fast, avoiding the complexity and potential risks brought by traditional manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 It is a perspective view of the feedback linkage brake system provided in the present application;

[0043] Figure 2 It is a first perspective view of the linkage device of the feedback linkage brake system provided in the present application;

[0044] Figure 3 It is a second perspective view of the linkage device of the feedback linkage brake system provided in the present application;

[0045] Figure 4 It is Figure 1 A position amplification schematic view in the middle;

[0046] Figure 5 It is a perspective view of the chassis system provided in the present application;

[0047] Figure 6 It is a schematic view of the brake process of the chassis system provided in the present application;

[0048] Figure 7 It is a schematic view of the brake release process of the chassis system provided in the present application;

[0049] In the figure: 100, linkage device; 200, line-driven brake device; 300, detection device; 400, movable wheel part; 401, connecting shaft; 500, chassis body; 11, device main body; 111, first mounting seat; 112, second mounting seat; 12, moving part; 13, foot pedal; 131, pedal part; 14, linkage elastic part; 15, connecting part; 161, first rotating shaft; 162, second rotating shaft; 163, third rotating shaft; 17, fastener; 2, brake line; 31, brake elastic part; 32, driving brake tooth; 33, driven brake tooth. DETAILED DESCRIPTION

[0050] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0051] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] The embodiments of the present application disclose a feedback linkage brake system, a chassis system and a medical device.

[0054] Please refer to Figure 1 An embodiment of the feedback linkage brake system provided in the embodiments of the present application includes:

[0055] The linkage device 100, the detection device 300 and the plurality of wire-driven brake devices 200.

[0056] The linkage device 100 includes a device main body 11, a foot pedal 13, a linkage elastic member 14, a moving piece 12 and a connecting piece 15.

[0057] The foot pedal 13 is rotationally arranged on the device main body 11, and the end away from the pedal portion 131 is connected to the moving piece 12 through the connecting piece 15.

[0058] The moving piece 12 is movably mounted on the device main body 11, and is connected to the wire-driven brake device 200 through the brake wire 2.

[0059] The linkage elastic member 14 is connected between the moving member 12 and the device main body 11, and is used to provide an elastic force for returning the moving member 12.

[0060] The foot pedal 13 is used to drive the moving member 12 to move by changing the swing position of the pedal part 131, so as to tighten or release the brake cable 2, and then control the brake device 200 to perform the brake action or release the brake action.

[0061] The pedal part 131 of the foot pedal 13 can be switched between the first swing position and the second swing position, and the first swing position is the lower swing position and the second swing position is the upper swing position. When the operator steps down the foot pedal 13 to the first swing position, the moving member 12 is driven to move to the first moving position through the connecting member 15, so that the brake cable 2 is in a released state; when the foot pedal force is released, the linkage elastic member 14 provides an elastic force for returning the moving member 12 to the second moving position (synchronously driving the foot pedal 13 to return to the upper swing position), so that the brake cable 2 returns to the tensioned state.

[0062] The detection device 300 is used to detect the moving position of the moving member 12 or the swing position of the pedal part 131.

[0063] 1. Based on the tensioning and releasing of the brake cable 2 to control the operation of the wire-driven brake device 200, mechanical brake control is realized. Compared with electronic components, it is not restricted by the performance of power supply and other electronic components, and can timely and accurately respond to braking demand in any environment.

[0064] 2. Combined with the intelligent monitoring assistance of the detection device 300, the running state can be fed back in real time in a complex or uneven environment, the risk of patient slipping due to improper operation is reduced, and the safety during use is significantly enhanced.

[0065] 3. Through the linkage device 100, multiple brake cables 2 can be simultaneously tensioned or released to control multiple wire-driven brake devices 200, realize multi-wheel brake control, ensure brake effect, and the control mode is driving the foot pedal 13, which is simple and fast, avoiding the complexity and potential risk brought by traditional manual operation.

[0066] From the above technical solutions, it can be seen that the feedback linkage brake system designed in the present application has the following beneficial effects:

[0067] 1. Based on the tensioning and releasing of the brake cable 2 to control the operation of the wire-driven brake device 200, mechanical brake control is realized. Compared with electronic components, it is not restricted by the performance of power supply and other electronic components, and can timely and accurately respond to braking demand in any environment.

[0068] 2, combined with the intelligent monitoring auxiliary of the detection device 300, the running state can be fed back in real time in a complex or uneven environment, the risk of patient falling due to improper operation is reduced, and the safety during use is significantly enhanced.

[0069] 3, through the linkage device 100, multiple brake lines 2 can be simultaneously tensioned or released to control multiple line-driven brake devices 200, multiple wheel brake control is realized, brake effect is guaranteed, and the control mode is driving pedal 13 control, brake is simple and fast, and the complexity and potential risk brought by traditional manual operation are avoided.

[0070] The above is embodiment one of the feedback linkage brake system provided by the embodiment of the application, and the following is embodiment two of the feedback linkage brake system provided by the embodiment of the application, please refer to Figures 1 to 4 .

[0071] Based on the scheme of the above embodiment one:

[0072] Further, as shown in Figure 2 and Figure 3 , the moving piece 12 is a sliding block structure, which is arranged on one side of the pedal 13 (specifically, it can be arranged on the front side of the pedal 13, and the front side here is the side of the chassis system facing the front end direction of the chassis) and is slidingly connected to the device main body 11 along a straight line direction close to or away from the pedal 13 (the straight line direction is the straight line direction of the front and back sides).

[0073] Of course, the moving piece 12 can also be arc-shaped slidingly installed or rotatably installed; however, compared with the design structure of converting swing into arc-shaped sliding or rotation, the design structure of converting swing into linear movement is simpler, which helps to reduce manufacturing cost.

[0074] As for the sliding installation mode, it can be a guide rail and sliding block type installation, a sliding groove type installation, etc., and is not limited in particular.

[0075] One end of the brake line 2 is fixed on the moving piece 12 by the fastener 17 (the fastener 17 can refer to the existing fastening structure for fixing the end of the brake line 2, and details are not described herein), and the other end of the brake line 2 is connected to the corresponding line-driven brake device 200.

[0076] Further, as shown in Figure 2 and Figure 3 , the connecting piece 15 is a connecting rod, one end of which is rotatably connected to the end of the pedal 13 away from the pedal part 131 through a first rotating shaft 161, and the other end is rotatably connected to the moving piece 12 through a second rotating shaft 162; the pedal 13 is rotatably installed on the device main body 11 through a third rotating shaft 163.

[0077] The two ends of the connecting rod are hingedly connected to realize the conversion of the swing of the foot pedal 13 into the linear movement of the moving piece 12. When the operator applies a force to the foot pedal 13, the foot pedal 13 will swing around the first rotating shaft 161. Since the two ends of the connecting rod are respectively connected to the foot pedal 13 and the moving piece 12, the swing of the foot pedal 13 will be transmitted to the moving piece 12 through the connecting rod. In this transmission process, the connecting rod will skillfully convert the swing of the foot pedal 13 into the linear movement of the moving piece 12 by virtue of its own structural characteristics. Specifically, with the swing of the foot pedal 13, the connecting rod will drive the moving piece 12 to move along a specific linear direction according to the change of the connection angle of the connecting rod with the foot pedal 13 and the moving piece 12 and the length of the connecting rod.

[0078] Further, as shown in Figure 2 and Figure 3 , the linkage elastic member 14 is a tension spring, and one end is connected to the moving piece 12 and the other end is connected to the device main body 11; when the foot pedal 13 is stepped down, the foot pedal 13 can overcome the tension of the tension spring to drive the moving piece 12 to move forward, and when the stepping force is removed, the tension spring resets and drives the moving piece 12 to move backward under the action of the tension of the tension spring, synchronously driving the foot pedal 13 to swing upward.

[0079] The reason for the preferred design of the tension spring is that the connection and installation of the tension spring are more convenient than those of the compression spring, so that the overall structure is more compact.

[0080] The linkage elastic member 14 is at least two and symmetrically arranged with respect to the connecting piece 15.

[0081] The two or more symmetrically arranged tension springs can make the moving piece 12 receive more balanced forces during movement. When the foot pedal 13 drives the moving piece 12 to move forward, the symmetrically arranged tension springs can ensure that the moving piece 12 will not deviate due to uneven forces and ensure that it moves smoothly along the predetermined linear trajectory; when the tension spring resets and drives the moving piece 12 to move backward, the stability can also be maintained, effectively avoiding the phenomenon of jamming or shaking of the moving piece 12.

[0082] Further, as shown in Figure 2 and Figure 3 , the device main body 11 includes a first mounting seat 111 and a second mounting seat 112; the moving piece 12 is movably mounted on the first mounting seat 111; and the foot pedal 13 is rotatably mounted on the second mounting seat 112.

[0083] From the perspective of simplifying the maintenance process, when the moving part 12 fails or needs regular maintenance, the maintenance personnel do not need to disassemble the entire device. Since the moving part 12 is only connected to the first mounting seat 111, the maintenance personnel can directly operate the first mounting seat 111 and quickly disassemble the moving part 12 from the first mounting seat 111. In this way, not only does it reduce the risk of damage to other components during disassembly, but it also significantly shortens the maintenance time. For example, in a work environment where the device is frequently used, quickly disassembling the moving part 12 for maintenance can effectively reduce downtime and improve efficiency.

[0084] For the foot pedal 13, the design of being independently mounted on the second mounting seat 112 also has significant advantages. The foot pedal 13 is easily affected by external forces, wear and tear, etc. during long-term use. When the foot pedal 13 needs to be repaired or replaced, the maintenance personnel can separate the foot pedal 13 from the second mounting seat 112, avoiding the difficulty of disassembly caused by complex connections with other components.

[0085] Further, as shown in Figure 2 and Figure 3 , the detection device 300 is a displacement sensor mounted on the device main body 11 or the moving part 12 for detecting the moving position of the moving part 12. The displacement sensor can be a grating sensor, a laser displacement sensor, etc., and those skilled in the art can make changes and selections according to actual needs without limitation.

[0086] When the detection device 300 detects the current position information of the moving part 12 and feeds it back to the background terminal, the background terminal determines the current state of the brake system (braking state or brake release state) through the feedback position information, and then displays it to the operator through the display screen, so that the operator can timely and intuitively understand whether the current brake system is in the braking state, avoiding misoperation.

[0087] Further, as shown in Figure 4 , for the design of the wire-driven brake device 200, it includes a brake elastic member 31, a driving brake tooth 32, and a driven brake tooth 33.

[0088] The driving brake tooth 32 is sleeved on the connecting shaft 401 and can move along the axial direction of the connecting shaft 401.

[0089] The driven brake tooth 33 is fixed to the movable wheel member 400 connected to the connecting shaft 401 and can be engaged with the driving brake tooth 32.

[0090] The brake elastic member 31 is connected between the driving brake tooth 32 and the connecting shaft 401, and is used to provide the elastic force for the driving brake tooth 32 to move to engage with the driven brake tooth 33. The brake elastic member 31 can be a compression spring, which is sleeved on the connecting shaft 401.

[0091] The brake wire 2 is connected to the driving brake tooth 32, and is used to drive the driving brake tooth 32 to move away from the driven brake tooth 33 to disengage with the driven brake tooth 33.

[0092] The brake wire 2 is pulled to drive the driving brake tooth 32 to move to the direction of compressing the brake elastic member 31 to disengage with the driven brake tooth 33, so as to release the brake; the brake wire 2 is released, and the driving brake tooth 32 is driven to move to engage with the driven brake tooth 33 under the restoring elastic force of the brake elastic member 31, so as to realize the brake.

[0093] The above-mentioned wire-driven brake device 200 is more suitable for being used in the movable wheel member 400 which is a unidirectional wheel, and when the movable wheel member 400 is a universal wheel, the brake structure which has been applied to the universal wheel can be used, and details are not described herein.

[0094] As shown in FIG. 1a, the present application further discloses a chassis system, which comprises a chassis body 500 and a feedback linkage brake system. Figure 5

[0095] The chassis body 500 is provided with at least two movable wheel members 400; the linkage device 100 of the feedback linkage brake system is installed on the chassis body 500; the wire-driven brake device 200 of the feedback linkage brake system is at least two, and is connected to the movable wheel member 400 one by one, and is used to control the brake of the movable wheel member 400.

[0096] Further, the movable wheel member 400 is preferably designed as four, which are divided into two groups and are distributed in front and back; the two movable wheel members 400 distributed in the front are unidirectional wheels, and the two movable wheel members 400 distributed in the back are universal wheels.

[0097] The brake control process is as follows:

[0098] As shown in FIG. 1a, the present application further discloses a chassis system, which comprises a chassis body 500 and a feedback linkage brake system. Figure 6 As shown in FIG. 1a, the present application further discloses a chassis system, which comprises a chassis body 500 and a feedback linkage brake system.

[0099] As shown in FIG. 1a, the present application further discloses a chassis system, which comprises a chassis body 500 and a feedback linkage brake system. Figure 6 As shown in FIG. 1a, the present application further discloses a chassis system, which comprises a chassis body 500 and a feedback linkage brake system.

[0100] Figure 6 ​​In the schematic diagram c, the two line-driven braking devices 200 connected to the front movable wheel 400 are released due to the loosening of the brake line 2, causing the brake elastic element 31 to reset and push the active brake tooth 32 to move and engage with the driven brake tooth 33, thereby braking the front movable wheel 400; similarly, the two line-driven braking devices 200 connected to the rear movable wheel 400 are released due to the loosening of the brake line 2, thereby activating their own braking function, so that all four movable wheels 400 are in a braking state.

[0101] The process of releasing the brake control is as follows:

[0102] like Figure 7 As shown in the schematic diagram, when the foot pedal force on the foot pedal 13 is released, the linkage elastic element 14 is reset, and the connecting element 15 is moved downward by the pulling force, which in turn drives the moving element 12 to move backward.

[0103] like Figure 7 In the schematic diagram b, the moving part 12 tightens the brake line 2 through a mechanical connection during its forward movement.

[0104] like Figure 7 In the schematic diagram c, the two line-driven braking devices 200 connected to the front movable wheel 400 are pulled by the brake line 2, causing the active brake tooth 32 to move towards the compression brake elastic member 31 and separate from the driven brake tooth 33, thereby releasing the brake from the front movable wheel 400; similarly, the two line-driven braking devices 200 connected to the rear movable wheel 400 release their own braking function due to the pull of the brake line 2, so that all four movable wheels 400 are in the released braking state.

[0105] This application also discloses medical equipment, including a main body and a chassis system, with the main body mounted on the chassis system. The main body includes, but is not limited to, operating tables, surgical robots, etc.

[0106] The above provides a detailed description of the feedback linkage braking system, chassis system, and medical equipment provided in this application. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A feedback linked brake system, characterized by, The linkage device (100), the detection device (300) and a plurality of line-driven brake devices (200) are included. The linkage device (100) comprises a device main body (11), a foot pedal (13), a linkage elastic member (14), a moving member (12) and a connecting member (15). The foot pedal (13) is rotationally arranged on the device main body (11), and one end away from the pedal part (131) is connected to the moving member (12) through the connecting member (15). The moving member (12) is movably installed on the device main body (11), and is connected to the line-driven brake device (200) through the brake wire (2). The linkage elastic member (14) is connected between the moving member (12) and the device main body (11), and is used to provide elastic force for resetting the moving member (12). The foot pedal (13) is used to drive the moving member (12) to move by changing the swing position of the pedal part (131) itself, thereby tensioning or releasing the brake wire (2), and then controlling the line-driven brake device (200) to perform brake action or release brake action through the brake wire (2). The detection device (300) is used to detect the moving position of the moving member (12) or the swing position of the pedal part (131).

2. The feedback linked brake system of claim 1, wherein, The moving member (12) is arranged on one side of the foot pedal (13), and is slidably connected to the device main body (11) along a straight line direction close to the foot pedal (13).

3. The feedback linked brake system of claim 2, wherein, The connecting member (15) is a connecting rod, one end of which is rotationally connected to one end of the foot pedal (13) away from the pedal part (131), and the other end is rotationally connected to the moving member (12).

4. The feedback linked brake system of claim 1, wherein, The linkage elastic member (14) is a tension spring, one end of which is connected to the moving member (12), and the other end is connected to the device main body (11). There are at least two linkage elastic members (14), which are symmetrically arranged relative to the connecting member (15).

5. The feedback linked brake system of claim 1, wherein, The device main body (11) comprises a first mounting seat (111) and a second mounting seat (112). The moving member (12) is movably installed on the first mounting seat (111). The foot pedal (13) is rotationally installed on the second mounting seat (112).

6. The feedback linked brake system of claim 1, wherein, The detection device (300) is a displacement sensor, which is installed on the device main body (11) or the moving member (12), and is used to detect the moving position of the moving member (12).

7. The feedback linked brake system of claim 1, wherein, The line-driven brake device (200) comprises a brake elastic member (31), a driving brake tooth (32) and a driven brake tooth (33). The driving brake tooth (32) is sleeved on the connecting shaft (401), and can move along the axial direction of the connecting shaft (401). The driven brake tooth (33) is fixed on the movable wheel member (400) connected with the connecting shaft (401), and can be engaged with the driving brake tooth (32). The brake elastic member (31) is connected between the driving brake tooth (32) and the connecting shaft (401), and is used to provide elastic force for the driving brake tooth (32) to move to engage with the driven brake tooth (33); The brake wire (2) is connected to the driving brake tooth (32), and is used to drive the driving brake tooth (32) to move away from the driven brake tooth (33) to separate from the driven brake tooth (33).

8. A chassis system characterized by, The feedback linkage brake system comprises a chassis body (500) and the feedback linkage brake system according to any one of claims 1 to 7; The chassis body (500) is provided with at least two movable wheel members (400); The linkage device (100) of the feedback linkage brake system is installed on the chassis body (500); The wire-driven brake device (200) of the feedback linkage brake system is at least two, and is connected to the movable wheel member (400) one by one, and is used to control the braking of the movable wheel member (400).

9. The chassis system of claim 8, wherein, The movable wheel member (400) is four, and is divided into two groups, and is distributed in front and back; The two movable wheel members (400) distributed in the front end are unidirectional wheels; The two movable wheel members (400) distributed in the rear end are universal wheels.

10. A medical device, characterized by The device main body is installed on the chassis system. The device main body is installed on the chassis system.

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