Fixing brace

Abstract

The utility model discloses a fixing brace. The fixing brace comprises a mounting frame, leg rods, a driving mechanism, a guide part and an electric control board, the leg rod is movably connected to the mounting frame; the driving mechanism is connected to the mounting frame, and the driving mechanism is in driving connection with the leg rods; the guide piece is connected to the mounting frame, and the leg rod is movably connected to the guide piece; the electric control board is in electric signal connection with the driving mechanism, and the electric control board is used for controlling the driving mechanism to drive the leg rod to stretch and retract in the extending direction of the guide part. According to the embodiment of the invention, the guide piece is arranged to guide the movement of the leg rod, so that the leg rod can only telescopically move along the extension direction of the guide piece, the shaking of the leg rod can be reduced, and the stability of the leg rod is improved.

Description

Technical Field

[0001] The present application relates to the field of medical and automation equipment, and in particular to a fixation brace. Background Art

[0002] In recent years, the number of patients with impaired lower limb motor function due to factors such as stroke, brain trauma, lower limb injury, and population aging has continued to increase each year. Due to the shortage of therapists and the high cost of rehabilitation treatment, most patients cannot receive systematic rehabilitation training. In addition, traditional manual rehabilitation treatment has low efficiency and high labor intensity for therapists, which cannot meet the requirements of therapists and patients for rehabilitation treatment under the new situation.

[0003] Among the current medical equipment, lower limb fixation braces can be used in scenarios such as rehabilitation training. The fixation brace can be fixed on the legs and feet to assist the injured in rehabilitation training. The fixation brace has a leg rod. When adjusting the length of the leg rod, the stability of the leg rod is not high, which affects the performance of the fixation brace. Utility Model Content

[0004] The present application provides a fixation brace, aiming to improve the problem of poor stability of the fixation brace.

[0005] In order to achieve the above technical effects, a technical solution adopted by the present application is to provide a fixing brace, comprising:

[0006] Mounting frame;

[0007] A leg rod movably connected to the mounting frame;

[0008] A driving mechanism is connected to the mounting frame, and the driving mechanism is drivingly connected to the leg rod;

[0009] A guide member connected to the mounting frame, the leg rod being movably connected to the guide member; and

[0010] The electric control board is connected with the driving mechanism by electrical signals, and is used to control the driving mechanism to drive the leg rod to telescopically move along the extension direction of the guide member.

[0011] In some examples, the fixation brace further comprises:

[0012] A screw rod is rotatably connected to the mounting frame; a driving mechanism is drivingly connected to the screw rod and is used to drive the screw rod to rotate relative to the mounting frame; and

[0013] The nut assembly is movably mounted on the screw rod along the extension direction of the leg rod. The leg rod is connected to the nut assembly. The nut assembly is movably connected to the guide member. The nut assembly is used to drive the leg rod to telescopically move along the extension direction of the guide member.

[0014] In some examples, the lead screw is a trapezoidal lead screw, and the nut assembly is a trapezoidal lead screw nut.

[0015] In some examples, the mounting bracket includes:

[0016] a first mounting plate;

[0017] A second mounting plate, arranged opposite to the first mounting plate;

[0018] The screw rod is rotatably connected to the first mounting plate and the second mounting plate, and the guide member is connected to at least one of the first mounting plate or the second mounting plate.

[0019] In some examples, the nut assembly is disposed between the first mounting plate and the second mounting plate; a guide hole is provided on the second mounting plate, and the leg rod passes through the guide hole.

[0020] In some examples, a linear bearing is sleeved on the leg rod, and the linear bearing is embedded in the guide hole.

[0021] In some examples, the mounting bracket further includes:

[0022] A mounting shell, wherein the mounting shell is formed with a mounting cavity, and a first mounting plate and a second mounting plate are arranged in the mounting cavity;

[0023] One of the first mounting plate and the mounting shell is provided with a first protrusion, and the other is provided with a first embedding groove, and the first protrusion is embedded in the first embedding groove; and / or, one of the second mounting plate and the mounting shell is provided with a second protrusion, and the other is provided with a second embedding groove, and the second protrusion is embedded in the second embedding groove.

[0024] In some examples, the fixation brace further comprises:

[0025] A sensor assembly connected to the nut assembly and / or the mounting bracket for detecting the displacement of the nut assembly;

[0026] The electric control board is connected with the sensor assembly via electrical signals, and is also used to control the operation of the driving mechanism according to the displacement of the nut assembly.

[0027] In some examples, the fixation brace further comprises:

[0028] The wireless communication circuit is connected to the electric control board and is used for receiving the electric signal; the electric control board is also used for controlling the operation of the driving mechanism according to the electric signal.

[0029] In some examples, the drive mechanism includes:

[0030] A motor assembly connected to the mounting frame;

[0031] A driving wheel connected to the output shaft of the motor assembly; and

[0032] The driven wheel is connected to the driving wheel, and the driven wheel is connected to the screw rod.

[0033] In some examples, the fixation brace further comprises:

[0034] The manual adjustment mechanism is connected to the output shaft of the driving wheel or the motor assembly.

[0035] In some examples, the driving wheel and the driven wheel are connected via a belt drive, and the manual adjustment mechanism is connected to the driving wheel.

[0036] The above scheme guides the movement of the leg rod by setting a guide member, so that the leg rod can only be telescopically moved along the extension direction of the guide member, thereby reducing the shaking of the leg rod and improving the stability of the leg rod; in the example of the present application, an electric control board is used to control the driving mechanism so that the driving mechanism drives the leg rod to move, thereby facilitating automatic control of the movement of the leg rod and improving the control performance of the fixed support. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 It is a structural schematic diagram of an example of a fixing brace of the present application;

[0039] Figure 2 It is an exploded schematic diagram of an example of a fixation brace of the present application;

[0040] Figure 3 It is a structural schematic diagram of an example of a fixing brace when the leg rod of the present application is in the first position;

[0041] Figure 4 This application Figure 3 Right view of;

[0042] Figure 5 It is a structural schematic diagram of an example of a fixing brace when the leg rod of the present application is in the second position;

[0043] Figure 6 This is a module diagram of an example of a fixing brace of the present application.

[0044] Among them, 100, mounting frame; 110, mounting shell; 111, first shell; 112, second shell; 113, first embedded groove; 114, second embedded groove; 115, first mounting plate; 1151, first protrusion; 116, second mounting plate; 1161, second protrusion; 117, guide hole; 118, first bearing; 119, second bearing; 200, leg rod; 210, linear bearing; 300, drive mechanism; 310, electric Motor assembly; 311, output shaft; 312, motor mounting flange; 313, third bearing; 320, driving wheel; 330, driven wheel; 340, belt; 350, manual adjustment mechanism; 400, lead screw; 410, nut assembly; 420, anti-self-rotation screw; 500, guide; 600, electric control board; 700, wireless communication circuit; 800, sensor assembly; 810, displacement sensor; 820, sensor contact sensing board. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0048] See also Figure 1 and Figure 2 The present application discloses a fixing brace, including a mounting frame 100, a leg rod 200, a driving mechanism 300, a guide plate, and an electric control board 600. The leg rod 200 is movably connected to the mounting frame 100; the driving mechanism 300 is connected to the mounting frame 100, and the driving mechanism 300 is connected to the leg rod 200; the guide member 500 is connected to the mounting frame 100, and the leg rod 200 is movably connected to the guide member 500; the electric control board 600 is connected to the driving mechanism 300 by electrical signals, and the electric control board 600 is used to control the driving mechanism 300 to drive the leg rod 200 to telescopically move along the extension direction of the guide member 500.

[0049] The mounting frame 100 can be used to connect to the leg. The mounting frame 100 in this example can be used as the main structure of the fixed support. The mounting frame 100 can be in the shape of a plate or a combination of multiple plates. The mounting frame 100 can also be a hollow shell.

[0050] The leg rod 200 can be used to connect the foot. In this example, the leg rod 200 is movably connected to the mounting frame 100, which means that the leg rod 200 can move relative to the mounting frame 100. In this example, when the mounting frame 100 is installed on the leg, the leg rod 200 can be moved relative to the mounting frame 100 in a preset direction, and the preset direction can be the length direction of the leg rod 200.

[0051] The driving mechanism 300 is connected to the mounting frame 100, which means that the driving mechanism 300 can be directly or indirectly connected to the mounting frame 100, so that the driving mechanism 300 is integrated on the mounting frame 100. The driving mechanism 300 is drivingly connected to the leg rod 200, which means that the driving mechanism 300 can drive the leg rod 200 to move along a preset direction relative to the mounting frame 100. The driving mechanism 300 in this example can drive the leg rod 200 to translate along the length direction of the leg rod 200.

[0052] The guide member 500 is connected to the mounting frame 100 so that the guide member 500 can be limited to a preset position on the mounting frame 100. The leg rod 200 is movably connected to the guide member 500, which means that the leg rod 200 and the guide member 500 cooperate with each other, and the guide member 500 can limit the moving direction of the leg rod 200, and the leg rod 200 can move along the track formed by the guide member 500. The guide member 500 in this example can be a guide column connected to the mounting frame 100, and the guide member 500 can also be a guide rail connected to the mounting frame 100.

[0053] The electric control board 600 is connected to the driving mechanism 300 by electrical signals, which means that the electric control board 600 can send electrical signals to the driving mechanism 300, and the driving mechanism 300 can drive the leg rod 200 to move under the drive of the electric control board 600. The electric control board 600 in this example can be an integrated circuit board. Optionally, the electric control board 600 can be a circuit board independently arranged relative to the driving mechanism 300; optionally, the electric control board 600 can be integrated with the circuit board of the driving mechanism 300. The driving mechanism 300 in this example can be started by the screw rod 400 or other driving methods to drive the leg rod 200 to move along a preset direction.

[0054] Please refer to Figure 3 , Figure 4 and Figure 5 The electric control board 600 can be used to send a driving signal to the driving mechanism 300, so that the driving mechanism 300 can drive the leg rod 200 to move relative to the mounting frame 100. When the leg rod 200 moves, since the leg rod 200 is connected to the guide member 500, the leg rod 200 moves along the extension direction of the guide member 500 under the restriction of the guide member 500. The extension direction of the guide member 500 in this example can be the length direction of the guide member 500. Taking the guide member 500 as a cylinder as an example, the extension direction of the guide member 500 can be the axial direction of the guide member 500.

[0055] The guide member 500 in this example can be used to limit the shaking of the leg rod 200, and the guide member 500 can also be used to limit the misalignment of the leg rod 200 relative to the mounting frame 100. The guide member 500 in this example can limit the movement of the leg rod 200, so that the leg rod 200 can move along the preset track formed by the guide member 500, and then the deviation of the leg rod 200 in other directions is limited by the guide member 500, so that the movement of the leg rod 200 maintains the preset directionality, and then the lateral swing of the leg rod 200 can be reduced, and the stability of the leg rod 200 can be improved.

[0056] Please refer to Figure 6 Since the electric control board 600 is used to control the operation of the driving mechanism 300 , in this example, the start and stop time and the operating time of the driving mechanism 300 can be controlled by the electric control board 600 , thereby facilitating automatic control of the movement of the leg rod 200 .

[0057] Please refer to Figure 6 In some examples, the fixing brace further includes a wireless communication circuit 700 connected to the electric control board 600, and the wireless communication circuit 700 is used to receive electrical signals; the electric control board 600 is also used to control the operation of the driving mechanism 300 according to the electrical signals.

[0058] The wireless communication circuit 700 may be a Bluetooth circuit module or a WiFi circuit module. The wireless communication circuit 700 may be used to receive an electrical signal sent by an external terminal. The electric control board 600 is connected to the wireless communication circuit 700 by electrical signals, so that the electric control board 600 can obtain the electrical signal of the wireless communication circuit 700, and the electric control board 600 can control the operation of the driving mechanism 300 according to the electrical signal. The wireless communication circuit 700 in this example may be separately arranged outside the electric control board 600, or the wireless communication circuit 700 may be integrated on the electric control board 600. In this example, by setting the wireless communication circuit 700, an electrical signal may be sent through the external terminal of the fixed brace to drive the leg rod 200 of the fixed brace to produce relative movement, thereby adjusting the length of the leg rod 200.

[0059] In some examples, the drive mechanism 300 includes a motor assembly 310, a driving wheel 320 and a driven wheel 330, wherein the motor assembly 310 is connected to the mounting frame 100; the driving wheel 320 is connected to the output shaft 311 of the motor assembly 310; the driven wheel 330 is drivingly connected to the driving wheel 320, and the driven wheel 330 is connected to the screw rod 400. The motor assembly 310 in this example is used to output torque, and the output shaft 311 of the motor assembly 310 is connected to the driving wheel 320 to drive the driving wheel 320 to rotate. The driving wheel 320 is drivingly connected to the driven wheel 330 so that the driving wheel 320 can drive the driven wheel 330 to rotate, and the driven wheel 330 is connected to the screw rod 400. The driving wheel 320 in the example of the present application can be meshed with the driven wheel 330, and the rotation speed of the screw rod 400 can be adjusted by adjusting the parameters of the driving wheel 320 and the driven wheel 330 to achieve variable speed transmission. In some examples, the motor assembly 310 includes a motor and a reducer, the reducer can be used to adjust the output speed of the motor, the motor is subjected to primary speed transmission through the reducer, and the motor is subjected to secondary speed transmission through the cooperation of the driving wheel 320 and the driven wheel 330. In some examples, the motor can be connected to the mounting shell 110. In some examples, the motor can be connected to the mounting shell 110 through the motor mounting flange 312. The output shaft 311 of the motor assembly 310 in this example can be connected to the mounting shell 110 through the third bearing 313 to limit the output shaft 311 and reduce the swing of the output shaft 311 of the motor assembly 310.

[0060] In some examples, the fixation brace further includes a manual adjustment mechanism 350, which is connected to the driving wheel 320 or the output shaft 311 of the motor assembly 310, and is used to rotate the output shaft 311 of the motor or the driving wheel 320 by manually adjusting the motor. The manual adjustment mechanism 350 in this example can be used to manually adjust the position of the leg rod 200 when the motor fails, and the manual adjustment mechanism 350 can also be used to fine-tune the position of the leg rod 200 when necessary.

[0061] In some examples, the driving wheel 320 and the driven wheel 330 are connected by a belt 340, and the manual adjustment mechanism 350 is connected to the driving wheel 320. In this example, the driving wheel 320 and the driven wheel 330 are pulleys arranged at intervals, and the driving wheel 320 and the driven wheel 330 are driven by the belt 340 to reduce the transmission noise by the transmission of the belt 340. In this example, the driving wheel 320 and the driven wheel 330 are connected by the belt 340, and the driving wheel 320 is adjusted by the manual adjustment mechanism 350, so that the tension of the belt 340 can be uniform and the bending moment can be reduced; and in the case of a motor or control circuit failure, the reciprocating linear motion of the leg rod 200 can be achieved by manual or external electric adjustment.

[0062] In some examples, the fixing bracket also includes a screw rod 400 and a nut assembly 410; the screw rod 400 is rotatably connected to the mounting frame 100; the driving mechanism 300 is drivingly connected to the screw rod 400, and is used to drive the screw rod 400 to rotate relative to the mounting frame 100; the nut assembly 410 is movably mounted on the screw rod 400 along the extension direction of the leg rod 200, the leg rod 200 is connected to the nut assembly 410, and the nut assembly 410 is movably connected to the guide member 500, and the nut assembly 410 is used to drive the leg rod 200 to telescopically move along the extension direction of the guide member 500.

[0063] The screw rod 400 is rotatably connected to the mounting frame 100, which means that the screw rod 400 can rotate relative to the mounting frame 100. In this example, the screw rod 400 can be connected to the mounting frame 100 through a bearing. The drive mechanism 300 is drivingly connected to the screw rod 400 so that the drive mechanism 300 can drive the screw rod 400 to rotate relative to the mounting frame 100. In some examples, the mounting frame 100 is provided with a first bearing 118 and a second bearing 119, and the screw rod 400 is rotatably connected to the mounting frame 100 through the first bearing 118 and the second bearing 119, so that when the drive mechanism 300 drives the screw rod 400 to rotate, the first bearing 118 and the second bearing 119 can limit the screw rod 400 from being misaligned relative to the mounting frame 100.

[0064] In this example, the nut assembly 410 is movably sleeved on the screw rod 400, which means that the nut assembly 410 cooperates with the screw rod 400 so that when the screw rod 400 rotates, the nut assembly 410 can move along the extension direction of the screw rod 400 under the drive of the screw rod 400. In this example, the extension direction of the screw rod 400 can be consistent with the extension direction of the guide member 500, so that when the screw rod 400 rotates under the drive of the driving mechanism 300, the nut assembly 410 can move along the extension direction of the guide member 500.

[0065] The nut assembly 410 is movably connected to the guide member 500, which means that the nut assembly 410 can move relative to the guide member 500. When the screw rod 400 rotates, the nut assembly 410 moves along the axial direction of the screw rod 400. Under the action of the guide member 500, the nut assembly 410 can be directional moved along the track formed by the guide member 500, thereby limiting the movement of the nut assembly 410, and limiting the circumferential rotation of the nut assembly 410 relative to the screw rod 400 by the guide member 500. The nut assembly 410 is connected to the leg rod 200 so that when the nut assembly 410 moves axially along the screw rod 400, the leg rod 200 can move synchronously with the nut assembly 410. The guide member 500 in this example can limit the circumferential movement of the nut assembly 410 relative to the screw rod 400, and then limit the circumferential side swing of the leg rod 200 relative to the screw rod 400, so that the leg rod 200 can be directional moved along the extension direction of the guide member 500, reducing the shaking of the leg rod 200 relative to the mounting frame 100. Since the nut assembly 410 can move axially relative to the screw rod 400, the leg rod 200 can move along a preset direction under the action of the guide member 500 and the nut assembly 410, so that the leg rod 200 cannot rotate. In some examples, an anti-rotation screw can be provided on the nut assembly 410 to prevent the leg rod 200 from rotating relative to the mounting frame 100.

[0066] In some examples, the lead screw 400 is a trapezoidal lead screw, and the nut assembly 410 is a trapezoidal lead screw nut. In this example, by using a trapezoidal lead screw and a trapezoidal lead screw nut to cooperate, the trapezoidal lead screw nut can be self-locked at a preset position, so that when the leg rod 200 reaches a preset length, it can be kept at a preset position. Optionally, the trapezoidal lead screw can be a 30° trapezoidal lead screw, and the trapezoidal lead screw nut can be a 30° trapezoidal lead screw nut.

[0067] Please continue reading Figure 2 The mounting frame 100 includes a first mounting plate 115 and a second mounting plate 116, and the second mounting plate 116 is arranged opposite to the first mounting plate 115; the screw rod 400 is rotatably connected to the first mounting plate 115 and the second mounting plate 116, and the guide member 500 is connected to at least one of the first mounting plate 115 or the second mounting plate 116.

[0068] The first mounting plate 115 can be a plate body arranged in parallel with the second mounting plate 116. The first mounting plate 115 and the second mounting plate 116 in this example can also be other polygonal block structures. The screw rod 400 is rotatably connected to the first mounting plate 115 so that the screw rod 400 can rotate relative to the first mounting plate 115 under the action of the driving mechanism 300. Optionally, a first bearing 118 is provided on the first mounting plate 115, and the screw rod 400 is rotatably connected to the first mounting plate 115 through the first bearing 118. Optionally, the screw rod 400 can also be rotatably connected to the second mounting plate 116, and a second bearing 119 can be provided on the second mounting plate 116 so that the screw rod 400 can rotate relative to the first mounting plate 115 and the second mounting plate 116. At the same time, the first mounting plate 115 and the second mounting plate 116 can limit the radial movement of the screw rod 400.

[0069] The guide member 500 is connected to one of the first mounting plate 115 or the second mounting plate 116, so that the guide member 500 is restricted to a preset position on the first mounting plate 115 and the second mounting plate 116. Optionally, in this example, the guide member 500 can be locked on the first mounting plate 115 and / or the second mounting plate 116 by screws, so that the guide member 500 can maintain a stable state relative to the first mounting plate 115 and the second mounting plate 116.

[0070] The nut assembly 410 in this example may be located in the area between the first mounting plate 115 and the second mounting plate 116. Optionally, the nut assembly 410 is disposed between the first mounting plate 115 and the second mounting plate 116; a guide hole 117 is provided on the second mounting plate 116, and the leg rod 200 is provided through the guide hole 117. The guide hole 117 may be a through hole provided along the extension direction of the guide member 500, and the guide hole 117 is used to limit the movement of the leg rod 200, so that the leg rod 200 can only move along the track formed by the guide hole 117.

[0071] In some examples, a linear bearing 210 is sleeved on the leg rod 200, and the linear bearing 210 is embedded in the guide hole 117. The linear bearing 210 in this example is sleeved on the leg rod 200 to limit the leg rod 200 to move linearly along the extension direction of the guide member 500. The linear bearing 210 is embedded in the guide hole 117 to install the linear bearing 210 on the mounting frame 100. The linear bearing 210 is a linear motion system used for linear travel in conjunction with a cylindrical shaft so that the leg rod 200 can obtain a stable linear motion with high sensitivity and high precision.

[0072] In some examples, the mounting frame 100 further includes a mounting shell 110, the mounting shell 110 is formed with a mounting cavity, and the first mounting plate 115 and the second mounting plate 116 are arranged in the mounting cavity; one of the first mounting plate 115 and the mounting shell 110 is provided with a first protrusion 1151, and the other is provided with a first embedding groove 113, and the first protrusion 1151 is embedded in the first embedding groove 113; in this example, the first protrusion 1151 is embedded in the first embedding groove 113, so that the first mounting plate 115 and the mounting shell 110 form an integral structure, so that the force of a single structural member on the first mounting plate 115 is transformed into the force of the overall structure of the mounting frame 100, and the mechanical properties are optimized in structure. In this example, the first protrusion 1151 can be provided on the mounting shell 110, and the first embedding groove 113 can be provided on the first mounting plate 115, or the first embedding groove 113 can be provided on the mounting shell 110, and the first protrusion 1151 can be provided on the first mounting plate 115. After the first protrusion 1151 is engaged with the first embedding groove 113 , the first mounting plate 115 cannot move relative to the mounting shell 110 along the extending direction of the guide member 500 , and the first mounting plate 115 can disperse the acting force onto the mounting shell 110 .

[0073] In some examples, the difference from the previous example is that one of the second mounting plate 116 and the mounting shell 110 is provided with a second protrusion 1161, and the other is provided with a second embedding groove 114, and the second protrusion 1161 is embedded in the second embedding groove 114. In this example, the second protrusion 1161 is embedded in the second embedding groove 114, so that the second mounting plate 116 and the mounting shell 110 form an integral structure, so that the force of a single structural member on the second mounting plate 116 is transformed into the force of the overall structure of the mounting frame 100, and the mechanical properties are optimized in structure. In this example, the second protrusion 1161 can be provided on the mounting shell 110, and the second embedding groove 114 can be provided on the second mounting plate 116, or the second embedding groove 114 can be provided on the mounting shell 110, and the second protrusion 1161 can be provided on the second mounting plate 116. After the second protrusion 1161 is engaged with the second embedding groove 114 , the second mounting plate 116 cannot move relative to the mounting shell 110 along the extending direction of the guide member 500 , and the second mounting plate 116 can disperse the acting force onto the mounting shell 110 .

[0074] In some examples, a first protrusion 1151 is provided on the first mounting plate 115 , a second protrusion 1161 is provided on the second mounting plate 116 , a first embedding groove 113 and a second embedding groove 114 are provided on the mounting shell 110 , the first protrusion 1151 is embedded in the first embedding groove 113 , and the second protrusion 1161 is embedded in the second embedding groove 114 .

[0075] In some examples, the fixing bracket also includes a sensor assembly 800, which is connected to the nut assembly 410 and / or the mounting frame 100 for detecting the displacement of the nut assembly 410; the electric control board 600 is electrically connected to the sensor assembly 800, and the electric control board 600 is also used to control the operation of the driving mechanism 300 according to the displacement of the nut assembly 410.

[0076] The sensor assembly 800 in this example is used to detect the displacement of the nut assembly 410. The sensor assembly 800 can be a non-contact displacement sensor 810, or a contact displacement sensor 810. Optionally, the sensor assembly 800 includes a displacement sensor 810 and a sensor contact sensing plate 820, wherein one of the displacement sensor 810 and the sensor contact sensing plate 820 can be set on the mounting frame 100, and the other can be installed on the nut assembly 410, and the displacement sensor 810 can be used to obtain the position signal of the sensor contact sensing plate 820, and the electric control board 600 is used to obtain the relative position of the nut assembly 410 according to the position signal. In this example, by setting the sensor assembly 800, after the initial zero position calibration, the data can be transmitted to the electric control board 600 through the sensor assembly 800 to accurately control the displacement stroke of the leg rod 200 and realize the positioning of the displacement data.

[0077] Please refer to Figure 3 and Figure 5 When the electric control board 600 controls the driving mechanism 300 and the driving mechanism 300 drives the screw rod 400 to rotate relatively, the nut assembly 410 moves along the axial direction of the screw rod 400. Optionally, when the sensor assembly 800 detects that the nut assembly 410 moves to the range of 2.5-0 mm, the sensor assembly 800 can send an electrical signal to the electric control board 600, and the electric control board 600 can receive the electrical signal of the sensor assembly 800. The electric control board 600 can control the driving mechanism 300 to stop running and record this time as the initial zero position of the leg rod 200. The initial zero position of the leg rod 200 in this example can be the initial position of the leg rod 200. The electric control board 600 can control the driving mechanism 300 to run, so that the driving mechanism 300 drives the leg rod 200 to move from the initial zero position to the preset position along the extension direction of the guide member 500, so that the leg rod 200 reaches a preset length.

[0078] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fixing brace, characterized in that: include: Mounting frame; A leg rod movably connected to the mounting frame; A driving mechanism connected to the mounting frame, wherein the driving mechanism is drivingly connected to the leg rod; A guide member connected to the mounting frame, and the leg rod is movably connected to the guide member; as well as The electric control board is connected with the driving mechanism via an electrical signal, and the electric control board is used to control the driving mechanism to drive the leg rod to telescopically move along the extension direction of the guide member.

2. The fixing brace according to claim 1, characterized in that: The fixing brace further comprises: A screw rod is rotatably connected to the mounting frame; the driving mechanism is drivingly connected to the screw rod and is used to drive the screw rod to rotate relative to the mounting frame; and A nut assembly is movably mounted on the screw rod along the extension direction of the leg rod, the leg rod is connected to the nut assembly, the nut assembly is movably connected to the guide member, and the nut assembly is used to drive the leg rod to telescopically move along the extension direction of the guide member.

3. The fixing brace according to claim 2, characterized in that: The screw rod is a trapezoidal screw rod, and the nut assembly is a trapezoidal screw rod nut.

4. The fixing brace according to claim 2, characterized in that: The mounting frame comprises: a first mounting plate; and A second mounting plate, arranged opposite to the first mounting plate; The screw rod is rotatably connected to the first mounting plate and the second mounting plate, and the guide member is connected to at least one of the first mounting plate or the second mounting plate.

5. The fixing brace according to claim 4, characterized in that: The nut assembly is arranged between the first mounting plate and the second mounting plate; a guide hole is opened on the second mounting plate, and the leg rod is arranged through the guide hole.

6. The fixation brace according to claim 5, characterized in that: A linear bearing is sleeved on the leg rod, and the linear bearing is embedded in the guide hole.

7. The fixation brace according to claim 4, characterized in that: The mounting frame also includes: A mounting shell, wherein the mounting shell is formed with a mounting cavity, and the first mounting plate and the second mounting plate are arranged in the mounting cavity; One of the first mounting plate and the mounting shell is provided with a first protrusion, and the other is provided with a first embedding groove, and the first protrusion is embedded in the first embedding groove; and / or one of the second mounting plate and the mounting shell is provided with a second protrusion, and the other is provided with a second embedding groove, and the second protrusion is embedded in the second embedding groove.

8. The fixation brace according to claim 4, characterized in that: The fixing brace further comprises: a sensor assembly, connected to the nut assembly and / or the mounting bracket, for detecting the displacement of the nut assembly; The electric control board is connected to the sensor assembly by electrical signals, and the electric control board is also used to control the operation of the driving mechanism according to the displacement of the nut assembly.

9. The fixation brace according to any one of claims 1 to 8, characterized in that: The fixing brace further comprises: The wireless communication circuit is connected to the electric control board and is used for receiving electric signals; the electric control board is also used for controlling the operation of the driving mechanism according to the electric signals.

10. The fixation brace according to any one of claims 2 to 8, characterized in that: The driving mechanism comprises: A motor assembly connected to the mounting frame; A driving wheel connected to the output shaft of the motor assembly; and The driven wheel is drivingly connected to the driving wheel, and the driven wheel is connected to the screw rod.

11. The fixation brace according to claim 10, characterized in that: The fixing brace further comprises: The manual adjustment mechanism is connected to the driving wheel or the output shaft of the motor assembly.

12. The fixation brace according to claim 11, characterized in that: The driving wheel is connected to the driven wheel through a belt drive, and the manual adjustment mechanism is connected to the driving wheel.

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