Postoperative auxiliary device for burn and plastic surgery department and auxiliary method thereof

Abstract

The invention is suitable for the technical field of medical auxiliary devices, and provides a postoperative auxiliary device for the department of burn and plastic surgery and an auxiliary method thereof.The postoperative auxiliary device comprises a base, a supporting plate, a foot tray, a driving mechanism and a reciprocating adjusting mechanism, the supporting plate is fixed to the base, and the foot tray is slidably connected to the supporting plate; the driving mechanism is used for driving the foot tray to slide on the supporting plate, the driving mechanism is arranged on one side of the base, the reciprocating adjusting mechanism is used for driving the foot tray to slide on the supporting plate in a reciprocating mode, and the reciprocating adjusting mechanism comprises an adjusting rod, a butt joint plate and a driven plate. According to the scheme, the driving mechanism and the reciprocating adjusting mechanism are arranged, the driving mechanism is used for driving the foot tray to slide, the flexion and extension assisting effect on leg movement of the patient is achieved, the patient is prevented from accelerating rehabilitation, by means of the reciprocating adjusting mechanism, the foot tray can do reciprocating movement, and the situation that the output direction of a servo motor needs to be adjusted is avoided; therefore, the servo motor is effectively protected, and the service life of the servo motor is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary devices, and in particular relates to a postoperative auxiliary device for burn and plastic surgery and an auxiliary method thereof. Background Art

[0002] Burns generally refer to tissue damage caused by heat, including hot liquids (water, soup, oil, etc.), steam, high-temperature gases, flames, hot metal liquids or solids (such as molten steel, steel ingots), etc., mainly referring to the skin or mucous membranes. In severe cases, the subcutaneous tissue or mucous membranes may also be injured. After completing plastic surgery, the patient will lie on a nursing bed to continue receiving treatment. In existing nursing beds, when the patient is lying on the bed, since the patient's limbs cannot move greatly and independently, auxiliary devices are generally set up to assist the patient's activities.

[0003] Although there are many kinds of assistive devices currently available, there are still some problems. For example, in the assistive devices for assisting patients' leg movements, most of them use a motor that can be driven forward and reverse to drive the screw to rotate, which in turn drives the slider thread to reciprocate, thereby making the tray used to support the patient's feet reciprocate, thereby achieving the effect of assisting the patient's leg movements. However, since the motor needs to be driven forward and reverse continuously, the life of the motor is greatly reduced during long-term forward and reverse driving work, which in turn leads to motor damage, which is easy to cause unnecessary economic losses. Summary of the invention

[0004] The present invention provides a postoperative auxiliary device for burn and plastic surgery and an auxiliary method thereof, aiming to solve the problem that the motor in the current auxiliary device needs to be continuously driven forward and reversely and is easily damaged.

[0005] The present invention is implemented in this way. In the first aspect, the present application provides a postoperative auxiliary device for burn plastic surgery, which adopts the following technical solution:

[0006] A postoperative auxiliary device for burn and plastic surgery, comprising:

[0007] A base, a support plate, a foot tray, a driving mechanism and a reciprocating adjustment mechanism, wherein the support plate is fixed on the base, and the foot tray is slidably connected to the support plate;

[0008] The driving mechanism is used to drive the foot tray to slide on the support plate, and the driving mechanism is arranged on one side of the base, the driving mechanism comprises a first driving gear, a second driving gear, a rack, a driving gear, a driven gear, a transmission rod, a first linkage cylinder and a second linkage cylinder, the first driving gear and the second driving gear are both rotatably connected to one side of the support plate and are arranged in parallel, the rack is fixed to one side of the bottom of the foot tray and meshes with the first driving gear and the second driving gear, the driving gear and the driven gear are both rotatably connected to one side of the base and mesh with each other, two transmission rods are provided, the two transmission rods are respectively fixed at the axis centers of the driving gear and the driven gear, the first linkage cylinder is coaxially fixed on the first driving gear and the second driving gear, the second linkage cylinder is slidably connected to the transmission rod, and tooth grooves are provided at the near ends of the first linkage cylinder and the second linkage cylinder;

[0009] The reciprocating adjustment mechanism is used to drive the foot tray to slide back and forth on the support plate, and the reciprocating adjustment mechanism includes an adjustment rod, a docking plate and a driven plate. One end of the adjustment rod is rotatably connected to the base, and the other end is slidably abutted with the second linkage cylinder. The docking plate is fixed on the adjustment rod, and the driven plate is rotatably connected to the rotating end of the docking plate connected to the base.

[0010] Preferably, a servo motor is fixed on one side of the base, the output shaft of the servo motor is coaxially fixed with the driving gear, and the servo motor is electrically connected to an external electric control device through a wire.

[0011] Preferably, a rotating rod is provided on the end of the docking plate away from the adjusting rod and on the driven plate, and a spring is clamped between two adjacent rotating rods.

[0012] Preferably, the reciprocating adjustment mechanism also includes an abutment rod and a positioning plate, the abutment rod is arranged on the driven plate, the positioning plate is arranged on the side wall of the foot tray, the abutment rod and the positioning plate are slidably abutted, and two abutment rods and positioning plates are symmetrically arranged and staggered up and down.

[0013] Preferably, the reciprocating adjustment mechanism further includes a limit plate and a limit groove, the outer wall of the second linkage cylinder is provided with a limit groove, the limit groove is annular in structure, the limit plates are symmetrically arranged on both sides of the adjustment rod, and are slidably engaged in the limit groove.

[0014] Preferably, the outer wall of the transmission rod is provided with a protrusion, and the inner wall of the second linkage cylinder is provided with a groove, and the protrusion is slidably engaged in the groove.

[0015] Preferably, a slide groove is provided on one side of the foot tray close to the positioning plate, and a screw rod is rotatably connected in the slide groove, the positioning plate is slidably engaged in the slide groove, and a screw hole is penetrated through the positioning plate, the screw rod is threadably matched with the screw hole, and two groups of mutually opposite threads are symmetrically provided on the screw rod.

[0016] Preferably, a holder is fixed on the support plate, a block is fixed on the bottom of the foot tray, the block is slidably engaged in the holder, and a ball is embedded and rollingly connected on the outer wall of the block.

[0017] Preferably, straps are symmetrically arranged on both sides of the foot tray, and Velcro is arranged on two adjacent straps.

[0018] Preferably, two blocking rods are symmetrically fixed on the base, and the driven plate is located between two adjacent blocking rods.

[0019] In a second aspect, the present application also provides an auxiliary method, comprising the following steps:

[0020] S1. Spacing adjustment: first adjust the sliding range of the foot tray according to the patient's actual exercise needs. During the adjustment, rotate the screw rod to drive the threads of the two adjacent positioning plates until the spacing between the two positioning plates is adjusted to an appropriate distance;

[0021] S2, auxiliary movement, the patient's foot is placed on the foot tray and fixed by a strap, then the servo motor is started to drive the driving gear to rotate, and the driven gear is meshed and linked, at this time one of the second linkage cylinders is meshed with the first linkage cylinder through the tooth groove, and drives the first drive gear or the second drive gear to rotate, and then the rack is meshed and linked, at this time the foot tray slides and drives the patient's foot to move;

[0022] S3, reciprocating motion. During the sliding movement of the foot tray, the abutment rod abuts against the positioning plate and drives the driven plate to rotate. At this time, the spring pulls the docking plate and the adjusting rod to rotate as a whole, and drives one of the second linkage cylinders to separate from the first linkage cylinder, so that the other second linkage cylinder and the first linkage cylinder engage with each other, and then drives the rack to engage in reverse linkage, and drives the foot tray to slide in the opposite direction, repeatedly assisting the patient in flexion and extension training.

[0023] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0024] 1. Use the servo motor in the driving mechanism to drive the active gear to rotate and drive the driven gear to engage and link, so that the two adjacent second linkage cylinders can move in opposite directions synchronously, and the second linkage cylinder is connected to one of the first linkage cylinders, thereby driving the active gear or the driven gear to engage and link, so that the rack engages and links and drives the foot tray to slide, thereby achieving the flexion and extension auxiliary effect for the patient's leg movement, avoiding the patient's accelerated recovery.

[0025] 2. By utilizing the setting of the reciprocating adjustment mechanism, when the foot tray slides, the positioning plate can abut against the abutment rod and push the driven plate to rotate, and then under the action of the spring, the adjusting rod and the docking plate are pulled to rotate as a whole, so that the second linkage cylinder is separated from the first linkage cylinder, and the other second linkage cylinder is docked with the first linkage cylinder, thereby realizing the reverse driving effect for the foot tray, and at the same time, the foot tray can also realize reciprocating motion, avoiding the need to adjust the output direction of the servo motor, thereby effectively protecting the servo motor, increasing its service life, and avoiding unnecessary economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the top view of the base structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the driving mechanism structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the driving gear and its overall connection structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the reciprocating adjustment mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the foot tray connection structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the card block and its connection structure of the present invention;

[0033] In the figure: 1. base; 2. support plate; 3. foot tray; 4. driving mechanism; 41. first driving gear; 42. second driving gear; 43. rack; 44. driving gear; 45. driven gear; 46. transmission rod; 47. first linkage cylinder; 48. second linkage cylinder; 49. servo motor; 5. reciprocating adjustment mechanism; 51. adjustment rod; 52. docking plate; 53. driven plate; 54. spring; 55. abutment rod; 56. positioning plate; 57. limit plate; 58. limit groove; 6. slide groove; 7. screw rod; 8. holder; 9. block; 10. ball; 11. strap; 12. stop rod. DETAILED DESCRIPTION

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In a first aspect, an embodiment of the present invention provides a postoperative auxiliary device for burn and plastic surgery, such as Figure 1-7 As shown, it includes: a base 1, a support plate 2, a foot tray 3, a driving mechanism 4 and a reciprocating adjustment mechanism 5, the support plate 2 is fixed on the base 1, and the foot tray 3 is slidably connected to the support plate 2;

[0037] The driving mechanism 4 is used to drive the foot tray 3 to slide on the support plate 2, and the driving mechanism 4 is arranged on one side of the base 1. The driving mechanism 4 includes a first driving gear 41, a second driving gear 42, a rack 43, a driving gear 44, a driven gear 45, a transmission rod 46, a first linkage cylinder 47 and a second linkage cylinder 48. The first driving gear 41 and the second driving gear 42 are both rotatably connected to one side of the support plate 2 and are arranged in parallel. The rack 43 is fixed to one side of the bottom of the foot tray 3 and meshes with the first driving gear 41 and the second driving gear 42. The driving gear 44 and the driven gear 45 are both rotatably connected. Connected to one side of the base 1 and meshing with each other, two transmission rods 46 are provided, the two transmission rods 46 are respectively fixed at the axis of the driving gear 44 and the driven gear 45, the first linkage cylinder 47 is respectively coaxially fixed on the first driving gear 41 and the second driving gear 42, the second linkage cylinder 48 is slidably connected to the transmission rod 46, and tooth grooves are provided at the near ends of the first linkage cylinder 47 and the second linkage cylinder 48, a servo motor 49 is fixed on one side of the base 1, the output shaft of the servo motor 49 is coaxially fixed with the driving gear 44, and the servo motor 49 is electrically connected to the external electric control device through a wire;

[0038] The reciprocating adjustment mechanism 5 is used to drive the foot tray 3 to slide back and forth on the support plate 2, and the reciprocating adjustment mechanism 5 includes an adjustment rod 51, a docking plate 52 and a driven plate 53. One end of the adjustment rod 51 is rotatably connected to the base 1, and the other end is slidably abutted with the second linkage cylinder 48. The docking plate 52 is fixed on the adjustment rod 51, and the driven plate 53 is rotatably connected to the rotating end of the docking plate 52 connected to the base 1. A rotating rod is provided on the end of the docking plate 52 away from the adjustment rod 51 and the driven plate 53, and a spring 54 is clamped between two adjacent rotating rods.

[0039] The reciprocating adjustment mechanism 5 further includes an abutment rod 55 and a positioning plate 56. The abutment rod 55 is arranged on the driven plate 53, and the positioning plate 56 is arranged on the side wall of the foot tray 3. The abutment rod 55 and the positioning plate 56 are slidably abutted, and two abutment rods 55 and positioning plates 56 are symmetrically arranged and staggered up and down. ;

[0040] The reciprocating adjustment mechanism 5 also includes a limit plate 57 and a limit groove 58. The limit groove 58 is arranged on the outer wall of the second linkage cylinder 48. The limit groove 58 is annular in structure. The limit plates 57 are symmetrically arranged on both sides of the adjustment rod 51 and are slidably engaged in the limit groove 58.

[0041] It should be noted that, in the auxiliary devices for assisting the patient's leg movements, most of them use a motor that can be driven forward and reverse to drive the screw to rotate, and then drive the slider thread to reciprocate, so that the tray used to support the patient's feet can reciprocate, thereby achieving the effect of assisting the patient's leg movements. However, since the motor needs to be driven forward and reverse continuously, the life of the motor is greatly reduced during long-term forward and reverse driving work, which leads to motor damage and easy unnecessary economic losses. In order to solve this problem, a driving mechanism 4 and a reciprocating adjustment mechanism 5 are set in this scheme, and the servo motor 49 in the driving mechanism 4 is used to drive the driving gear 44 to rotate and drive the driven gear 45 to mesh and link, so that the two adjacent second linkage cylinders 48 can move in the opposite direction synchronously, and the second linkage cylinder 48 is connected with one of the first linkage cylinders 47, thereby driving the driving gear 44 or the driven gear 45 to link, so that the rack 43 is meshed and linked and drives the foot tray 3 to slide, thereby achieving the effect of assisting the patient's leg movements in flexion and extension, avoiding the patient from accelerating the patient's recovery;

[0042] By utilizing the setting of the reciprocating adjustment mechanism 5, when the foot tray 3 slides, the positioning plate 56 can abut against the abutment rod 55 and push the driven plate 53 to rotate, and then under the action of the spring 54, the adjustment rod 51 and the docking plate 52 are pulled to rotate as a whole, so that the second linkage cylinder 48 is separated from the first linkage cylinder 47, and the other second linkage cylinder 48 is docked with the first linkage cylinder 47, thereby realizing the reverse driving effect for the foot tray 3, and at the same time, it can also realize the reciprocating motion of the foot tray 3, avoiding the need to adjust the output direction of the servo motor 49, thereby effectively protecting the servo motor 49, increasing its service life, and avoiding unnecessary economic losses.

[0043] Specifically, in this embodiment, the scheme mainly includes a base 1, a support plate 2, a foot tray 3, a driving mechanism 4, a reciprocating adjustment mechanism 5, a slide 6, a screw rod 7, a holder 8, a block 9, a ball 10 and a strap 11. When in use, the screw rod 7 is first rotated to adjust the distance between two adjacent positioning plates 56, and then the patient's foot is placed on the foot tray 3 and fixed by the strap 11, and then the servo motor 49 is started to drive the driving gear 44 to rotate and drive the driven gear 45 to mesh and link, so that the two adjacent second linkage cylinders 48 can move synchronously in the opposite direction, and the ... The movable cylinder 48 is docked with one of the first linkage cylinders 47, thereby driving the driving gear 44 or the driven gear 45 to engage, and then the rack 43 is engaged and drives the foot tray 3 to slide. During the sliding process of the foot tray 3, the positioning plate 56 abuts against the abutment rod 55 and pushes the driven plate 53 to rotate, and then under the action of the spring 54, the adjusting rod 51 and the docking plate 52 are pulled to rotate as a whole, so that the second linkage cylinder 48 is separated from the first linkage cylinder 47, and the other second linkage cylinder 48 is docked with the first linkage cylinder 47, thereby achieving a reverse drive effect on the foot tray 3.

[0044] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the outer wall of the transmission rod 46 is provided with a protrusion, and the inner wall of the second linkage cylinder 48 is provided with a groove, and the protrusion is slidably engaged in the groove.

[0045] In this embodiment, the second linkage cylinder 48 is limited by the protrusion, so that the second linkage cylinder 48 can slide on the transmission rod 46 and also rotate synchronously with the transmission rod 46 .

[0046] In a further preferred embodiment of the present invention, Figure 1-7 As shown, a slide groove 6 is provided on one side of the foot tray 3 close to the positioning plate 56, and a screw rod 7 is rotatably connected in the slide groove 6. The positioning plate 56 is slidably engaged in the slide groove 6, and a screw hole is penetrated on the positioning plate 56. The screw rod 7 is threadedly matched with the screw hole, and two sets of threads in opposite directions are symmetrically provided on the screw rod 7.

[0047] In this embodiment, by setting the screw rod 7 and the reverse thread, the two adjacent positioning plates 56 can be synchronously and reversely threadedly linked when the screw rod 7 rotates, thereby realizing rapid adjustment of the distance between the two adjacent positioning plates 56.

[0048] In a further preferred embodiment of the present invention, Figure 1-7 As shown, a holder 8 is fixed on the support plate 2, a block 9 is fixed on the bottom of the foot tray 3, the block 9 is slidably engaged in the holder 8, and a ball 10 is embedded and rollingly connected on the outer wall of the block 9.

[0049] In this embodiment, the foot tray 3 is limited by the holder 8 , and the friction resistance between the holder 8 and the block 9 is reduced by the rolling of the ball 10 .

[0050] In a further preferred embodiment of the present invention, Figure 1-7 As shown, straps 11 are symmetrically arranged on both sides of the foot tray 3, and Velcro is arranged on two adjacent straps 11.

[0051] In this embodiment, the patient's feet can be quickly restrained and fixed on the foot tray 3 by means of the straps 11 .

[0052] In a further preferred embodiment of the present invention, Figure 1-7 As shown, two blocking rods 12 are symmetrically fixed on the base 1 , and the driven plate 53 is located between two adjacent blocking rods 12 .

[0053] In this embodiment, the rotation angle of the driven plate 53 is limited by the stop rod 12 .

[0054] Second, refer to Figure 1-Figure 7 , the present application also provides an auxiliary method, comprising the following steps:

[0055] S1. Spacing adjustment: first adjust the sliding range of the foot tray 3 according to the actual exercise needs of the patient. During the adjustment, the screw rod 7 is rotated to drive the threads of the two adjacent positioning plates 56 until the spacing between the two positioning plates 56 is adjusted to an appropriate distance;

[0056] S2, auxiliary movement, the patient's foot is placed on the foot tray 3 and fixed by the strap 11, then the servo motor 49 is started to drive the driving gear 44 to rotate, and the driven gear 45 is meshed and linked, at this time, one of the second linkage cylinders 48 and the first linkage cylinder 47 are meshed with each other through the tooth groove, and drives the first driving gear 41 or the second driving gear 42 to rotate, and then the rack 43 is meshed and linked, at this time the foot tray 3 slides and drives the patient's foot to move;

[0057] S3, reciprocating motion. During the sliding movement of the foot tray 3, the abutment rod 55 abuts against the positioning plate 56 and drives the driven plate 53 to rotate. At this time, the spring 54 pulls the docking plate 52 and the adjusting rod 51 to rotate as a whole, and drives one of the second linkage cylinders 48 to separate from the first linkage cylinder 47, so that the other second linkage cylinder 48 and the first linkage cylinder 47 engage with each other, and then drives the rack 43 to engage and link in the opposite direction, and drives the foot tray 3 to slide in the opposite direction, repeatedly assisting the patient in flexion and extension training.

[0058] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0059] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0060] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A postoperative auxiliary device for burns and plastic surgery, characterized in that: include: A base (1), a support plate (2), a foot tray (3), a driving mechanism (4) and a reciprocating adjustment mechanism (5), wherein the support plate (2) is fixed on the base (1) and the foot tray (3) is slidably connected to the support plate (2); The driving mechanism (4) is used to drive the foot tray (3) to slide on the support plate (2), and the driving mechanism (4) is arranged on one side of the base (1), and the driving mechanism (4) comprises a first driving gear (41), a second driving gear (42), a rack (43), a driving gear (44), a driven gear (45), a transmission rod (46), a first linkage cylinder (47) and a second linkage cylinder (48), the first driving gear (41) and the second driving gear (42) are both rotatably connected to one side of the support plate (2) and are arranged in parallel, the rack (43) is fixed to one side of the bottom of the foot tray (3) and is connected to the first driving gear The wheel (41) is meshed with the second driving gear (42), the driving gear (44) and the driven gear (45) are both rotatably connected to one side of the base (1) and meshed with each other, two transmission rods (46) are provided, and the two transmission rods (46) are respectively fixed at the axis of the driving gear (44) and the driven gear (45), the first linkage cylinder (47) is coaxially fixed on the first driving gear (41) and the second driving gear (42), the second linkage cylinder (48) is slidably connected to the transmission rod (46), and tooth grooves are provided at the near ends of the first linkage cylinder (47) and the second linkage cylinder (48); The reciprocating adjustment mechanism (5) is used to drive the foot tray (3) to slide back and forth on the support plate (2), and the reciprocating adjustment mechanism (5) includes an adjustment rod (51), a docking plate (52) and a driven plate (53), one end of the adjustment rod (51) is rotatably connected to the base (1), and the other end is slidably abutted with the second linkage cylinder (48), the docking plate (52) is fixed on the adjustment rod (51), and the driven plate (53) is rotatably connected to the rotating end of the docking plate (52) connected to the base (1).

2. A postoperative auxiliary device for burns and plastic surgery as claimed in claim 1, characterized in that: A servo motor (49) is fixed on one side of the base (1), an output shaft of the servo motor (49) is coaxially fixed with the driving gear (44), and the servo motor (49) is electrically connected to an external electric control device via a wire.

3. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: A rotating rod is provided on one end of the docking plate (52) away from the adjusting rod (51) and on the driven plate (53), and a spring (54) is clamped between two adjacent rotating rods.

4. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: The reciprocating adjustment mechanism (5) further comprises an abutment rod (55) and a positioning plate (56), wherein the abutment rod (55) is arranged on the driven plate (53), and the positioning plate (56) is arranged on the side wall of the foot tray (3), the abutment rod (55) and the positioning plate (56) are slidably abutted, and two abutment rods (55) and two positioning plates (56) are symmetrically arranged and staggered up and down.

5. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 4, characterized in that: The reciprocating adjustment mechanism (5) further comprises a limit plate (57) and a limit groove (58); the limit groove (58) is arranged on the outer wall of the second linkage cylinder (48); the limit groove (58) is annular in structure; the limit plates (57) are symmetrically arranged on both sides of the adjustment rod (51) and are slidably engaged in the limit groove (58).

6. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: The outer wall of the transmission rod (46) is provided with a protrusion, and the inner wall of the second linkage cylinder (48) is provided with a groove, and the protrusion is slidably engaged in the groove.

7. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 4, characterized in that: A slide groove (6) is provided on one side of the foot tray (3) close to the positioning plate (56), and a screw rod (7) is rotatably connected in the slide groove (6). The positioning plate (56) is slidably engaged in the slide groove (6), and a screw hole is penetrated on the positioning plate (56). The screw rod (7) is threadedly matched with the screw hole, and two sets of threads in opposite directions are symmetrically provided on the screw rod (7).

8. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: A holder (8) is fixed on the support plate (2), a block (9) is fixed on the bottom of the foot tray (3), the block (9) is slidably engaged in the holder (8), and a ball (10) is embedded and rollingly connected on the outer wall of the block (9).

9. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: The foot tray (3) is symmetrically provided with straps (11) on both sides, and two adjacent straps (11) are provided with Velcro.

10. The postoperative auxiliary device for burn and plastic surgery as claimed in claim 1, characterized in that: Two blocking rods (12) are symmetrically fixed on the base (1), and the driven plate (53) is located between two adjacent blocking rods (12).

11. An auxiliary method, applied to a burn and plastic surgery postoperative auxiliary device according to any one of claims 1 to 10, characterized in that: The following steps are involved: S1. Spacing adjustment: firstly, the sliding range of the foot tray (3) is adjusted according to the actual exercise requirements of the patient. During the adjustment, the screw rod (7) is rotated to drive the threads of two adjacent positioning plates (56) until the spacing between the two positioning plates (56) is adjusted to an appropriate spacing; S2, auxiliary movement, the patient's foot is placed on the foot tray (3) and fixed by the strap (11), then the servo motor (49) is started to drive the driving gear (44) to rotate, and the driven gear (45) is meshed and linked, at this time, one of the second linkage cylinders (48) and the first linkage cylinder (47) are meshed with each other through the tooth groove, and drive the first drive gear (41) or the second drive gear (42) to rotate, and then the rack (43) is meshed and linked, at this time the foot tray (3) slides and drives the patient's foot to move; S3, reciprocating motion. During the sliding movement of the foot tray (3), the abutment rod (55) abuts against the positioning plate (56) and drives the driven plate (53) to rotate. At this time, the spring (54) pulls the docking plate (52) and the adjustment rod (51) to rotate as a whole, and drives one of the second linkage cylinders (48) to separate from the first linkage cylinder (47), so that the other second linkage cylinder (48) and the first linkage cylinder (47) engage with each other, thereby driving the rack (43) to engage in reverse linkage and drive the foot tray (3) to slide in the reverse direction, and repeatedly assisting the patient to perform flexion and extension training.

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