Multi-dimensional adjustable leg supporting frame

Abstract

The utility model relates to the field of medical instruments, in particular to a multi-dimensional adjustable leg supporting frame which comprises a base, a knee bracket fixedly arranged on the base, a foot bracket arranged on the base in a sliding mode, a knee bracket height adjusting assembly, a foot bracket height adjusting assembly, a distance adjusting assembly, a gear shifting driving assembly and an angle adjusting telescopic assembly. Compared with the prior art, gear shifting driving is adopted, so that one-key driving multi-dimensional adjustment can be achieved through gear shifting, and the leg posture adjusting device has the advantages that operation and adjustment are more convenient and simpler, and adjustment preparation and fixation of the leg posture of a patient before medicine changing can be rapidly completed.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a multi-dimensionally adjustable leg support frame. Background Art

[0002] Traditional leg supports play an important role in surgical operations and dressing changes, providing stable leg support, alleviating pain and discomfort in patients, and increasing surgical effectiveness and safety. For patients with lower limb trauma or who need to frequently change dressings or clean wounds after surgery, the use of leg supports is an indispensable part. However, traditional leg supports can only independently adjust the height, angle and distance of the leg supports, and the operation and adjustment steps are cumbersome and relatively troublesome to use. Especially in limited spaces, such as when used in independent compartments, when the patient's lower limbs, including the feet, need to be disinfected, rinsed, changed, and bandaged, this process may require multiple and continuous adjustments to the relevant height, elevation angle and support distance, thereby adding unnecessary labor intensity and labor time to medical staff, long waiting times for patients, incoherent postures of patients, or inappropriate and unpleasant posture adjustments, which further lead to wound tearing and even worsening of the condition.

[0003] Although the leg supports on the market can support the patient's legs, they may not provide sufficient support and fixation in surgeries such as fracture reduction surgery and joint replacement surgery that require specific postures and fixation methods, and their application range is relatively narrow. Moreover, due to the influence of the patient's weight, the leg support is bound to be prone to shaking or instability. If it loses stability during surgery or treatment, it will increase the risk of injury to the patient. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-dimensionally adjustable leg support in order to overcome the defects of the above-mentioned prior art, which is more convenient and simple to operate and adjust, saving time for medical staff and enabling them to quickly complete the adjustment preparation and fixation of the patient's posture before changing the dressing.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A multi-dimensionally adjustable leg support frame, the multi-dimensionally adjustable leg support frame

[0007] It includes a base, a knee support fixed on the base, a foot support slidably arranged on the base, a knee support height adjustment component, a foot support height adjustment component, a distance adjustment component, and a gear shift drive component;

[0008] The knee bracket comprises a knee bracket rack vertically slidably arranged on the base, and a knee bracket arranged on the knee bracket rack;

[0009] The foot support comprises a foot support rack vertically slidably arranged on the base, and a foot support arranged on the foot support rack;

[0010] The knee bracket height adjustment assembly comprises a knee bracket height adjustment driving wheel and a knee bracket height adjustment driven gear which are transmission-connected, and the knee bracket height adjustment driven gear is meshed with the knee bracket rack;

[0011] The footrest height adjustment assembly includes a footrest height adjustment gear, and the footrest height adjustment gear is meshed with the footrest rack;

[0012] The distance adjustment assembly includes a screw nut displacement structure and an adjustment gear driving wheel, wherein the displacement nut end of the screw nut displacement structure is connected to the knee bracket, and the fixed screw end is transmission-connected to the adjustment gear driving wheel;

[0013] The shift drive assembly is used as a driving member and is respectively connected to the knee rest height adjustment driving gear, the foot rest height adjustment gear, and the adjustment gear driving wheel.

[0014] Furthermore, the leg support also includes an angle-adjustable telescopic assembly, which includes a first connecting rod and a telescopic rod that are hingedly connected. The first connecting rod is installed on the knee support, the telescopic rod is installed on the foot support, and the foot support is hinged on the rack of the foot support.

[0015] Furthermore, the gear shift drive assembly includes: a gear shifter, a gear shift handle for operating the gear shifter, a total driving wheel, and a driven wheel. The total driving wheel and the driven wheel are rotatably arranged on the gear shifter, and the gear shifter can move along the axis of the total driving wheel or move and rotate around the axis under the action of the gear shift handle, so that the driven wheel is respectively engaged with the knee support height adjustment driving wheel, the foot support height adjustment gear, and the adjustment gear driving wheel through the gear shifter.

[0016] Furthermore, the gear shift drive assembly also includes a rotating hand wheel, and the rotating hand wheel is transmission-connected to the main driving wheel.

[0017] Furthermore, the gear shift drive assembly, the knee support height adjustment driving wheel, the foot support height adjustment gear, and the adjustment gear driving wheel are integrated on one side of the multi-dimensionally adjustable leg support.

[0018] Furthermore, the knee support height adjustment driving wheel and the knee support height adjustment driven gear are connected through a transmission rod assembly.

[0019] Furthermore, the transmission rod assembly includes a front bevel gear coaxially connected to the knee support height adjustment driving wheel, a first bevel gear meshing with the front bevel gear, a third bevel gear driving the knee support height adjustment driven wheel to rotate, and a second bevel gear meshing with the third bevel gear, and the first bevel gear and the second bevel gear are connected via a telescopic universal joint.

[0020] Furthermore, the knee support height adjustment driving wheel, the foot support height adjustment gear, and the adjustment gear driving wheel are integrated into a gear set through a connecting rod;

[0021] The connecting rod is sleeved with a plurality of rotating shafts, and the knee support height adjustment driving wheel, the foot support height adjustment gear, and the adjusting gear driving wheel are respectively fixedly connected with the corresponding rotating shafts to realize independent rotation.

[0022] Furthermore, rack grooves are provided at the bottom of the knee support and the foot support, and the racks of the knee support and the racks of the foot support are movably arranged in the corresponding rack grooves.

[0023] Furthermore, the multi-dimensionally adjustable leg support also includes a box body, which covers the outside of the gear set, the shift drive assembly, and the distance adjustment assembly. An opening is opened on the side of the box body, and the shift handle of the shift drive assembly extends from the opening.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] (1) The utility model adopts a knee height adjustment mechanism, a spacing adjustment mechanism and a foot height adjustment mechanism to achieve multi-dimensional adjustment of the patient's lower limb knee height, supporting leg length position and foot height, so that the patient's leg support height, leg angle, support distance and other multi-dimensional adjustments can be made in detail and accurately, thereby providing the patient with a more comfortable posture and different postures required for dressing changes, which is more in line with ergonomic requirements and allows medical staff to more conveniently perform dressing changes, surgery or treatment on the patient's lower limbs.

[0026] (2) The utility model adopts a stable and reliable support design, which can bear a large weight and resist shaking and impact, thereby protecting the patient, providing a firm support for the patient, making the nursing experience more comfortable, and avoiding accidents. Ultimately, the present invention will provide patients with a safer, more comfortable, more efficient, and more accurate treatment experience that meets the requirements of ergonomics.

[0027] (3) The utility model adopts a shift drive assembly, and the shift handle is adjusted with one button to achieve the height adjustment of the knee support and the foot support, and the distance between the knee support and the foot support can be adjusted. The angle adjustment telescopic assembly is further adjusted by the knee support height drive to change the foot support angle with the knee support height. Therefore, the present invention adopts a shift drive assembly to achieve multi-dimensional adjustment of the legs with one button drive by shifting, and the adjustment operation is more convenient, simple and rapid, so as to complete the adjustment preparation and fixation of the patient's leg posture before changing the dressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a multi-dimensional adjustable leg support provided in this embodiment;

[0029] Figure 2A schematic structural diagram of a base of a multi-dimensionally adjustable leg support provided in this embodiment;

[0030] Figure 3 A schematic structural diagram of a knee support of a multi-dimensionally adjustable leg support provided in this embodiment;

[0031] Figure 4 A schematic structural diagram of a foot support of a multi-dimensionally adjustable leg support provided in this embodiment;

[0032] Figure 5 A schematic structural diagram of a distance adjustment component of a multi-dimensionally adjustable leg support provided in this embodiment;

[0033] Figure 6 A schematic diagram of the connection of a distance adjustment component of a multi-dimensionally adjustable leg support provided in this embodiment;

[0034] Figure 7 A schematic diagram of the structure of a gear set of a multi-dimensionally adjustable leg support provided in this embodiment;

[0035] Figure 8 A schematic structural diagram of a shift drive assembly of a multi-dimensionally adjustable leg support provided in this embodiment;

[0036] Fig. 9 A schematic diagram of the engagement between the gear shift drive assembly and the gear set of a multi-dimensional adjustable leg support provided in this embodiment Figure 1 ;

[0037] Fig.10 A schematic diagram of the engagement between the gear shift drive assembly and the gear set of a multi-dimensional adjustable leg support provided in this embodiment Figure 2 ;

[0038] Fig.11 A schematic diagram of the working of a foot support height adjustment assembly of a multi-dimensionally adjustable leg support provided in this embodiment;

[0039] Fig.12 A schematic diagram of the working of a distance adjustment component of a multi-dimensionally adjustable leg support provided in this embodiment;

[0040] Fig.13 A schematic diagram of the working of a knee support height adjustment assembly of a multi-dimensionally adjustable leg support provided in this embodiment;

[0041] Fig.14 A schematic structural diagram of a knee support height adjustment assembly of a multi-dimensionally adjustable leg support provided in this embodiment;

[0042] Fig.15 A schematic diagram of the structure of an angle-adjustable telescopic assembly of a multi-dimensionally adjustable leg support provided in this embodiment;

[0043] Fig.16 A schematic diagram of the connection of the angle adjustment telescopic components of a multi-dimensionally adjustable leg support provided in this embodiment;

[0044] Fig.17 is a schematic structural diagram of a U-shaped footrest in this embodiment;

[0045] Fig.18 A schematic diagram of the use status of a multi-dimensionally adjustable leg support provided in this embodiment.

[0046] Reference numerals:

[0047] Base 1, box 2, knee bracket 3, angle adjustment telescopic component 4, foot bracket 5, gear shift drive component 6, knee bracket height adjustment component 7, distance adjustment component 8, gear set 9, seat leg 11, crossbeam 12, guide rail 13, slider 14, knee rack groove 31, knee bracket rack 32, knee support rod 33, nylon gasket 34, knee support 35, connecting rod clamp 41, first connecting rod 42, rod sleeve 43 and second connecting rod 44, foot rack groove 51, foot bracket rack 52, foot support rod 53, foot support 54, U-shaped foot support 55, shifter 61, total active Wheel 62, rotating hand wheel 63, driven wheel 64, baffle 65, operating lever 66, shift handle 67, first bevel gear 71, telescopic universal joint 72, second bevel gear 73, mounting frame 74, third bevel gear 75, knee support height adjustment driven wheel 76, connector 81, six-rod lifter 82, screw 83, adjustment gear 84, worm gear device 85, first rotating shaft 91, foot support height adjustment gear 92, adjustment gear driving wheel 93, second rotating shaft 94, knee support height adjustment driving wheel 95, front bevel gear 96, third rotating shaft 97. DETAILED DESCRIPTION

[0048] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.

[0049] Example

[0050] This embodiment provides a multi-dimensional adjustable leg support frame, the structure of which is as follows Figure 1 As shown, including:

[0051] It includes a base 1, a box 2, a knee support 3, an angle adjustment telescopic component 4, a foot support 5, a distance adjustment component 8, and a gear shift drive component 6.

[0052] In this embodiment, the base 1 has a structure as follows: Figure 2As shown, it includes four legs 11, a crossbeam 12 mounted on both ends of the legs 11 and fixed by locking bolts, two guide rails 13 mounted on the crossbeam 12, and a slider 14 slidably mounted on the guide rails 13. As a preferred solution, an anti-slip sleeve can be set at the bottom of the legs 11 or a self-locking universal wheel can be installed to make the structure more flexible and stable;

[0053] In this embodiment, the knee support 3 is mounted on the slider 14 of the base rail 13 and can move forward and backward along the rail 13. Figure 3 As shown, it includes a knee support 35, a nylon gasket 34, a knee support rod 33, a knee support rack 32, and a knee rack groove 31 mounted outside the knee support rack 32, the knee support rack 32 can move up and down in the knee rack groove 31, the knee support rod 33 is fixed to the top of the knee support rack 32, the knee support 35 is installed on the top of the knee support rod 33 and fixed with a nylon gasket 34 to increase the damping to prevent the knee support 35 from rotating randomly, wherein the nylon gasket 34 and the side parts of the knee support 35 are fastened by nuts and screws, and the knee support 35 is saddle-shaped.

[0054] In this embodiment, the foot bracket 5 is fixedly mounted on the cross beam 12, and its structure is as follows: Figure 4 As shown, it includes a footrest 54, a foot support rod 53, a footrest rack 52, and a foot rack groove 51. The foot rack groove 51 is fixedly installed on the cross beam 12, and the footrest rack 52 can move up and down in the foot rack groove 51. The foot support rod 53 is fixed to the top of the footrest rack 52. The footrest 54 is installed on the top of the foot support rod 53 and can move up and down through the action of the footrest rack 52. The footrest 54 is an ankle-foot orthosis.

[0055] In this embodiment, the foot support 5 and the knee support 3 are also connected to a distance adjustment component 8, the structure of which is as follows: Figure 5 As shown, one end of the distance adjustment assembly 8 is fixedly connected to the knee rack groove 31 in the knee bracket 3, as shown in FIG. Figure 6 As shown, the knee rack groove 31 can be driven to move forward and backward, and the other end is fixedly mounted on the box body 2. The distance adjustment component 8 includes a connector 81, a six-rod lifter 82, a screw 83, an adjustment gear 84, and a worm gear device 85, wherein one end of the six-rod lifter 82 is connected to the connector 81, and is fixedly connected to the knee bracket 3 through the connector 81, and the other end of the six-rod lifter 82 is screwed with the screw 83 and the six-rod lifter 82 is moved forward and backward by the rotation of the screw 83, thereby driving the knee bracket 3 to move horizontally, and the worm gear device 85 includes a base mounted on the box body 2, and a worm wheel and a worm gear disposed on the base and meshing with each other, the adjustment gear 84 is connected to the worm gear in synchronous rotation, and the screw 83 is connected to the worm wheel in synchronous rotation, and the adjustment gear 84 drives the screw 83 to rotate through the worm gear device 85.

[0056] In some specific connection structures, synchronous rotation can be achieved through a coaxial fixed connection. For example, the adjusting gear 84 and the worm can be coaxially positioned and then fixedly connected to achieve synchronous rotation.

[0057] In this embodiment, the height adjustment of the knee support 3 and the foot support 5 is mainly completed by the knee support height adjustment component, the foot support height adjustment component, the shift drive component 6, and the gear set 9:

[0058] The gear set 9 includes: a foot support height adjustment gear 92 of the foot support height adjustment assembly, a knee support height adjustment driving wheel 95 and an adjustment gear driving wheel 93 that drives the adjustment gear 84 to rotate. The above gears are integrated into the gear set 9 through a connecting rod. The sliding sleeve on the connecting rod has three rotating shafts. The foot support height adjustment gear 92 is synchronously rotated and connected with the first rotating shaft 91, the adjustment gear driving wheel 93 is synchronously rotated and connected with the second rotating shaft 94, and the knee support height adjustment driving wheel 95 is connected with the third rotating shaft 97, thereby realizing independent rotation. Figure 7 As shown,

[0059] In this embodiment, the structure of the gear shift drive assembly 6 is as follows: Figure 8 As shown, it includes a shifter 61, a total driving wheel 62 and a driven wheel 64. The shifter 61 is installed on the main shaft, and the total driving wheel 62 and the driven wheel 64 are installed on the shifter 61. The shift drive assembly also includes a rotating hand wheel 63, which is fixed to the main shaft and drives the main shaft to rotate. The total driving wheel 62 is arranged on the main shaft.

[0060] Specifically, the shift drive assembly 6 is a three-tube structure that can rotate relatively from the inside to the outside, with the main shaft as the inner tube; the shifter 61 is slidably mounted on the main shaft as the middle tube, and can slide along the axial direction of the main shaft. A tubular support structure is also provided on the shifter 61 along the axial direction of the main shaft, and the main driving wheel 62 is rotatably mounted on the tubular support structure as the outer tube. A driven wheel 64 is provided on the rotating outer end of the shifter 61, and the driven wheel 64 meshes with the main driving wheel 62, and with the axial displacement of the shifter 61, it can also mesh with the corresponding foot support adjustment driven wheel 92 and the adjustment gear driving wheel 93. The shift drive assembly also includes a rotating hand wheel 63, which is synchronously rotatably connected with the main driving wheel 62.

[0061] The shift drive assembly 6 also includes a baffle 65, which is fixedly mounted on the housing 2 (eg, Figure 1), where three round holes represent three gears (foot height, distance, knee height), the shift handle 67 is fixed on the shifter 61, one end of the operating rod 66 is rotatably arranged on the shift handle 67, and the other end points to the gear round hole, and the shifter 61 can move along the axis of the total driving wheel 62 or move and rotate around the axis (to correspond to the meshing of gears of different sizes) under the action of the shift handle 67, which can drive the operating rod 66 to move horizontally to the corresponding gear position, and then the operating rod 66 can be embedded in the round hole of the corresponding gear, thereby realizing multi-dimensional adjustment,

[0062] By meshing the driven wheel 64 on the shifter 61 in the shift drive assembly 6 with the knee support height adjustment driving wheel 95, the foot support height adjustment gear 92, and the adjustment gear driving wheel 93 respectively, multi-dimensional adjustment can be achieved;

[0063] like Fig. 9 , 10 , which is a schematic diagram of the gear shift drive assembly 6 meshing with the gear set 9 .

[0064] The footrest height adjustment gear 92 is meshed with the footrest rack 52 in the footrest 5, thereby achieving the height adjustment of the footrest 5. Fig.11 As shown;

[0065] The adjusting gear driving wheel 93 meshes with the adjusting gear 84 in the distance adjusting assembly 8 to adjust the distance between the foot support 5 and the knee support 3, as shown in FIG. Fig.12 As shown;

[0066] In this embodiment, since the two gears for adjusting the height of the knee support are arranged on both sides of the leg support, the knee support height adjustment driving wheel 95 is connected to the knee support height adjustment driven wheel 76 through a connecting rod. The specific connection method includes: a front bevel gear 96 driven by the knee support height adjustment driving wheel 95, a first bevel gear 71 meshing with the front bevel gear 96, a third bevel gear 75 driving the knee support height adjustment driven wheel 76, and a second bevel gear 73 meshing with the third bevel gear 75, wherein the first bevel gear 71 is connected to the second bevel gear 73 through a telescopic universal joint 72, such as Fig.13 As shown, the connecting rod also includes a mounting bracket 74 for installation.

[0067] Therefore, the height adjustment of the knee bracket drives the knee bracket height adjustment driving wheel 95 to rotate through the driven wheel 64, and the knee bracket height adjustment driving wheel 95 drives the front bevel gear 96 to rotate synchronously through the third rotating shaft 97, and is transmitted to the knee bracket height adjustment driven wheel 76 through the connecting rod. The knee bracket height adjustment driven wheel 76 is engaged with the knee bracket rack 32 of the knee bracket 3 to realize the up and down movement of the knee bracket 3, such as Fig.14 As shown,

[0068] The multi-dimensional adjustable leg support provided in this embodiment also includes a box 2, such as Figure 1 As shown, the box body 2 is fixedly mounted on the crossbeam 12 and its two ends extend outside the two ends of the crossbeam 12, and cover the outside of the gear shift drive assembly 6 and the gear set 9 to protect the internal structure. There are track slots on both sides of the box body 2, and a limit rod is provided on the mounting frame 74 in the knee support height adjustment assembly 7. The outer end of the limit rod is slidably arranged in the track slot, and the movement range can be limited when the knee support height adjustment assembly 7 moves following the slider 14. The box body 2 is affixed with functional introductions and operating instructions of the three gears next to the gear shift drive assembly 6 for the convenience of operators. An opening is opened on the side of the box body 2, and the shift handle 67 of the gear shift drive assembly extends from the opening.

[0069] The multi-dimensional adjustable leg support provided in this embodiment also includes an angle adjustment telescopic component 4, such as Fig.15 , 16 As shown, one end of the angle adjustment telescopic assembly 4 is fixedly mounted on the knee support rod 33, and the other end is mounted on the foot support 54 at the top of the foot support frame 5; it includes a connecting rod clamp 41, a first connecting rod 42, and a length telescopic rod connected in sequence, and the length telescopic rod includes: a rod sleeve 43 and a second connecting rod 44, the connecting rod clamp 41 is fixedly mounted on the knee support rod 33, one end of the first connecting rod 42 is freely rotatably connected to the connecting rod clamp 41, and the other end is fixed to the rod sleeve 43 by a plum-shaped screw and a nut, one end of the second connecting rod 44 is slidably embedded in the rod sleeve 43, and the other end extends out of the rod sleeve 43, thereby realizing the telescopic movement of the length telescopic rod. The end of the second connecting rod 44 is fixedly connected to the top of the foot support frame 5, thereby realizing the adjustment of the angle of the foot support 54: a hinge seat is provided at the bottom of the foot support 54, and it is hinged to the top of the foot support rod 53 through the hinge seat, and the end of the second connecting rod 44 is fixedly connected to the hinge seat or the foot support 54, and the connection is eccentrically set relative to the rotating shaft of the hinge seat. Finally, the angle of the footrest 54 is changed with the height of the knee support 3 by means of the angle adjustment telescopic assembly 4: the height change of the knee support rod 33 on the knee support 3 drives the height of the connecting rod clamp 41 of the angle adjustment telescopic assembly 4 to change accordingly; thereby driving the first connecting rod 42, the rod sleeve 43, and the second connecting rod 44 to change their angles together (because the distance between the knee support 3 and the foot support 5 remains unchanged, the length between the rod sleeve 43 and the second connecting rod 44 needs to be telescopically changed), and the second connecting rod 44 is fixedly connected to the footrest 54 or the hinged seat of the foot support 5, so that the footrest 54 can be driven to change its angle accordingly with the height change of the knee support 35. The first connecting rod 42 and the rod sleeve 43 are fixed by plum-shaped screws and nuts in order to further independently and finely adjust the angle of the footrest 54 (when the height of the knee support 35 and the distance between the knee support 3 and the foot support 5 remain unchanged), so that the adjustment is more accurate and personalized.

[0070] In addition, in order to completely expose the patient's feet from the footrest 54, the footrest 54 in the present invention can also be in the form of a U-shaped footrest 55, such as Fig.17shown.

[0071] In some specific embodiments, the above-mentioned free rotation connection can be achieved by an unfastened perforated bolt and nut structure, that is, holes are respectively provided on both sides of the connection, and bolts pass through the holes in sequence and serve as rotation axes to achieve free rotation around the rotation axes on both sides. When a fixed angle posture is required, the bolts and nuts can be tightened so that the bolts and nuts are in friction contact with the edges of the holes on the corresponding sides.

[0072] The multi-dimensional adjustable leg support provided in this embodiment is used as follows: Fig.18 As shown, a person sits on a chair, places his feet on the foot support 5, and places his knees on the knee support 3. The placement height of the feet, the placement height of the knees, the distance between the feet and the knees, and the angle between the knees and the feet can all be adjusted in multiple dimensions through the gear set 9, the knee support height adjustment component 7, the distance adjustment component 8, and the angle adjustment telescopic component 4.

[0073] The specific steps are:

[0074] S1: Bring the leg support frame close to the injured person and estimate the injured person's leg injury. Use the shift drive assembly 6 and the knee support height adjustment assembly 7. First, the operating rod 66 and the shift handle 67 cooperate to place the end of the operating rod 66 in the hole marked with (knee height) in the baffle 65. In this way, the shifter 61 will drive the total driving wheel 62 and the driven wheel 64 to translate on the main shaft to engage with the knee support height adjustment driving wheel 95. The knee support height adjustment driving wheel 95 drives the front bevel gear 96 to rotate synchronously. Then cooperate with the knee bracket height adjustment assembly 7, rotate the hand wheel 63 to transmit power to the total driving wheel 62-driven wheel 64-knee bracket height adjustment driving wheel 95-front bevel gear 96-first bevel gear 71-telescopic universal joint 72-second bevel gear 73-third bevel gear 75-knee bracket height adjustment driven wheel 76, the knee bracket height adjustment driven wheel 76 can drive the knee bracket rack 32 installed on the knee rack groove 31 of the knee bracket 3 to move up and down to roughly adjust the height of the knee bracket 35, and then place the injured person's knee on the knee bracket 35 of this leg support frame;

[0075] S2: Use the shift drive assembly 6. First, the operating rod 66 and the shift handle 67 are matched to place the end of the operating rod 66 in the hole marked with (foot height) in the baffle 65, so that the shifter 61 will drive the main driving wheel 62 and the driven wheel 64 to translate on the main axis to engage with the foot support frame adjustment driven wheel 92; turn the hand wheel 63 to transmit power to the main driving wheel 62-driven wheel 64-foot support frame adjustment driven wheel 92-foot support frame rack 52, which can drive the foot support frame rack 52 installed on the foot rack groove 51 in the foot support frame 5 to move up and down to roughly adjust the height of the foot support 54, and then place the injured person's feet on the foot support 54 of this leg support frame;

[0076] S3: The injured person can adjust himself to an angle suitable for his knees and feet with the help of the first connecting rod 42, the rod sleeve 43, and the second connecting rod 44 in the angle adjustment telescopic assembly 4.

[0077] S4: Use the shift drive assembly 6 and the distance adjustment mechanism 8. First, match the operating rod 66 with the shift handle 67 to place the end of the operating rod 66 in the hole marked with (distance) in the baffle 65. In this way, the shifter 61 will drive the total driving wheel 62 and the driven wheel 64 to translate on the main shaft to engage with the adjusting gear driving wheel 93. The adjusting gear driving wheel 93 can drive the adjusting gear 84 in the distance adjustment mechanism 8 to rotate; turn the handwheel 63 to transmit power to the total driving wheel 62-driven wheel 64-adjusting gear driving wheel 93-adjusting gear 84-worm gear device 85-screw 83-six-rod lifter 82-connector 81. The connector 81 simultaneously connects the six-rod lifter 82 and the knee rack groove 31 in the knee support 3. In this way, the knee rack groove 31 will drive the knee support 3 to move on the guide rail 13 through the slider 14 and accurately move to the most suitable leg posture for the injured person.

[0078] S5: Since the injured part is in the foot, the height of the footrest 54 is adjusted through step S2 to ensure that the footrest 54 is close to the injured person's foot, so that the injured person's foot can be firmly fixed on the footrest 54 and will not swing at will.

[0079] S6: Doctors manually or surgically restore the fractured bone to its normal position and stabilize it by using a cast, bandage, external fixation device, or internal fixation device (such as a plate, screws, or metal rods).

[0080] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A multi-dimensional adjustable leg support, characterized in that: The multi-dimensional adjustable leg support It comprises a base (1), a knee support (3) fixedly mounted on the base (1), a foot support (5) slidably mounted on the base (1), a knee support height adjustment component, a foot support height adjustment component, a distance adjustment component, and a gear shift drive component (6); The knee support (3) comprises a knee support rack (32) vertically slidably arranged on the base (1), and a knee support (35) arranged on the knee support rack (32); The foot support (5) comprises a foot support rack (52) vertically slidably arranged on the base (1), and a foot support (54) arranged on the foot support rack (52); The knee support height adjustment assembly comprises a knee support height adjustment driving wheel (95) and a knee support height adjustment driven gear (76) which are transmission-connected, and the knee support height adjustment driven gear (76) is meshed with the knee support rack (32); The foot support height adjustment assembly comprises a foot support height adjustment gear (92), and the foot support height adjustment gear (92) is meshed with the foot support rack (52); The distance adjustment component comprises a screw nut displacement structure and an adjustment gear driving wheel (93), wherein the displacement nut end of the screw nut displacement structure is connected to the knee bracket (3), and the fixed screw end is transmission-connected to the adjustment gear driving wheel (93); The gear shift drive assembly (6) is used as a driving member and is respectively connected in transmission with the knee support height adjustment driving wheel (95), the foot support height adjustment gear (92), and the adjustment gear driving wheel (93).

2. The multi-dimensional adjustable leg support according to claim 1, characterized in that: The leg support frame also includes an angle-adjustable telescopic assembly (4), the angle-adjustable telescopic assembly (4) including a first connecting rod (42) and a telescopic rod that are hingedly connected, the first connecting rod (42) being mounted on the knee support frame (3), the telescopic rod being mounted on the foot support frame (54), and the foot support frame (54) being hingedly connected to the foot support frame rack (52).

3. The multi-dimensional adjustable leg support according to claim 1, characterized in that: The shift drive assembly (6) comprises: a shifter (61), a shift handle (67) for operating the shifter (61), a total driving wheel (62), and a driven wheel (64); the total driving wheel (62) and the driven wheel (64) are rotatably arranged on the shifter (61), and the shifter (61) can move along the axis of the total driving wheel (62) or move and rotate around the axis under the action of the shift handle (67), so that the driven wheel (64) is respectively meshed with the knee support height adjustment driving wheel (95), the foot support height adjustment gear (92), and the adjustment gear driving wheel (93) through the shifter (61).

4. The multi-dimensionally adjustable leg support according to claim 3, characterized in that: The gear shift drive assembly also includes a rotating hand wheel (63), and the rotating hand wheel (63) is transmission-connected to the main driving wheel (62).

5. The multi-dimensional adjustable leg support according to claim 1, characterized in that: The gear shift drive assembly (6), the knee support height adjustment driving wheel (95), the foot support height adjustment gear (92), and the adjustment gear driving wheel (93) are integrated on one side of the multi-dimensionally adjustable leg support.

6. The multi-dimensional adjustable leg support according to claim 1, characterized in that: The knee support height adjustment driving wheel (95) and the knee support height adjustment driven gear (76) are connected via a transmission rod assembly.

7. The multi-dimensionally adjustable leg support according to claim 6, characterized in that: The transmission rod assembly comprises a front bevel gear (96) coaxially connected to a knee bracket height adjustment driving wheel (95), a first bevel gear (71) meshing with the front bevel gear (96), a third bevel gear (75) driving a knee bracket height adjustment driven gear (76) to rotate, and a second bevel gear (73) meshing with the third bevel gear (75); the first bevel gear (71) and the second bevel gear (73) are connected via a telescopic universal joint (72).

8. The multi-dimensionally adjustable leg support according to claim 1, characterized in that: The knee support height adjustment driving wheel (95), the foot support height adjustment gear (92), and the adjustment gear driving wheel (93) are integrated into a gear set (9) via a connecting rod; The connecting rod is sleeved with a plurality of rotating shafts, and the knee support height adjustment driving wheel (95), the foot support height adjustment gear (92), and the adjustment gear driving wheel (93) are respectively fixedly connected to the corresponding rotating shafts to realize independent rotation.

9. The multi-dimensionally adjustable leg support according to claim 1, characterized in that: The bottoms of the knee support (3) and the foot support (5) are both provided with rack grooves, and the knee support rack (32) and the foot support rack (52) are movably arranged in the corresponding rack grooves.

10. The multi-dimensionally adjustable leg support according to claim 8, characterized in that: The multi-dimensionally adjustable leg support also includes a box body (2), the box body (2) covers the outside of the gear set (9), the gear shift drive assembly (6), and the distance adjustment assembly, and an opening is opened on the side of the box body (2), and the gear shift handle (67) of the gear shift drive assembly protrudes from the opening.

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