Spacing adjusting mechanism

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a spacing adjusting mechanism, which comprises a bottom plate, two moving platforms symmetrically arranged on the bottom plate, leg supports arranged on each moving platform and used for placing legs of a patient, and a support arranged on each moving platform and used for placing the legs of the patient. The leg lifting assemblies are used for controlling the leg supports to turn over on the moving platforms, the sliding rails are arranged on the bottom plate and used for guiding the moving platforms to move freely on the bottom plate, and the driving assemblies are arranged on the bottom plate and used for controlling the two moving platforms to move back and forth on the bottom plate along the sliding rails. Switching assemblies used for selecting and controlling the driving assembly to control the moving platforms to move or not are arranged between the driving assembly and the two moving platforms. The leg rehabilitation training device can selectively perform rehabilitation training on a single leg, and is simple in driving structure and easy to process and overhaul.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a spacing adjustment mechanism. Background Art

[0002] Some patients with leg injuries need to undergo surgery in the hospital. After the treatment, they need to do some rehabilitation training in the nursing department to assist in their leg recovery.

[0003] Generally, patients will undergo leg rehabilitation with the help of some leg rehabilitation equipment, but the existing leg rehabilitation equipment generally requires patients to perform leg movements independently, which will consume more of the patients' physical strength. In addition, some patients have severe leg injuries and cannot move their legs independently, and cannot use these leg rehabilitation equipment.

[0004] In order to solve the above problems, a leg rehabilitation device is disclosed, such as the Chinese patent authorization announcement number "CN114209548A", and more particularly, it relates to a leg rehabilitation device for patients in the medical nursing department. It includes a support frame and a seat cushion, the seat cushion is installed in the middle of the support frame; a back cushion, the back cushion is installed on one side of the upper part of the support frame; and an armrest, the armrest is symmetrically installed on the side of the upper part of the support frame away from the back cushion. The present invention can fix the patient's legs with the connecting belt through the cooperation of the buckle and the support block, and then use the reduction motor as the driving force to drive the mounting rod to rotate reciprocatingly inward and outward, thereby driving the patient's legs to rotate reciprocatingly inward and outward, so that the patient's legs can complete the purpose of rehabilitation training, without the need for the patient to move his legs independently, thereby reducing the patient's physical exertion.

[0005] Although the above scheme can reduce the patient's physical exertion and is relatively safe.

[0006] But it has the following problems:

[0007] (1) The driving mechanism is very complex, difficult to assemble and process, and easy to damage.

[0008] (2) Rehabilitation training should be performed on both legs, rather than selectively on one leg. Utility Model Content

[0009] The utility model provides a spacing adjustment mechanism, which can selectively perform rehabilitation training on a single leg, and has a simple driving structure and is easy to process and repair.

[0010] In order to achieve the above purpose, the utility model adopts the following technical solution: a spacing adjustment mechanism, comprising:

[0011] Base plate;

[0012] Two mobile platforms are symmetrically arranged on the bottom plate;

[0013] A leg rest is arranged on each mobile platform and is used to place the patient's legs;

[0014] A leg lifting assembly is arranged on each mobile platform and is used to control the leg rest to flip on the mobile platform;

[0015] A slide rail is arranged on the bottom plate and is used to guide the mobile platform to move freely on the bottom plate;

[0016] A driving assembly is arranged on the bottom plate and is used to control the two moving platforms to move back and forth along the slide rails on the bottom plate;

[0017] Among them, a switching component for selecting whether to control the driving component to control the movement of the mobile platform is arranged between the driving component and the two mobile platforms.

[0018] Preferably, the leg raising assembly comprises:

[0019] A lifting part is arranged in the mobile platform;

[0020] A bracket, fixedly mounted on the outer side of the mobile platform;

[0021] A connecting rod, one end of which is connected to the telescopic end of the lifting part, and the other end of which is connected to the leg support;

[0022] Wherein, the center position close to the connecting rod is hinged to the bracket.

[0023] Preferably, the lifting part is an electric telescopic column.

[0024] Preferably, the drive assembly comprises:

[0025] Drive unit;

[0026] A first threaded rod is driven to rotate by a driving unit to drive one of the moving platforms to move;

[0027] A second threaded rod, arranged coaxially with the first threaded rod, drives another movable platform to move;

[0028] A connecting portion, wherein the first threaded rod is fixedly connected to the second threaded rod so that the first threaded rod and the second threaded rod form a rotating body;

[0029] The spiral directions of the first threaded rod and the second threaded rod are opposite to each other, and the first threaded rod and the second threaded rod are respectively threadedly connected to two moving platforms.

[0030] Preferably, the driving unit comprises:

[0031] Motor;

[0032] A transmission mechanism is connected to the output end of the motor and controls the first threaded rod or the second threaded rod to rotate;

[0033] Among them, the transmission mechanism includes a first pulley coaxially fixed to the output end of the motor and a second pulley coaxially fixed to the first threaded rod or the second threaded rod, and the first pulley and the second pulley are connected by belt drive.

[0034] Preferably, the switching component includes:

[0035] A moving base, sleeved on the first threaded rod or the second threaded rod, and threadedly connected to the first threaded rod or the second threaded rod;

[0036] A contact plate, sleeved on the first threaded rod or the second threaded rod, and fixedly connected to one side of the moving base;

[0037] A guiding component, arranged on the moving platform, for guiding the horizontal movement of the moving base;

[0038] A switching component, arranged on one side of the moving platform, for controlling the connection between the moving base and the moving platform.

[0039] Preferably, the guiding component includes:

[0040] A guiding rod, which is an L-shaped rod;

[0041] A guiding hole, arranged on the moving platform;

[0042] Among them, one end of the guiding rod is fixedly connected to the contact plate, and the other end of the guiding rod passes through the guiding hole and is slidably connected to the guiding hole.

[0043] Preferably, the switching component includes:

[0044] A bolt, slidably arranged on one side of the moving platform;

[0045] A bolt hole, arranged on the contact plate for the insertion of the bolt;

[0046] A connecting plate, arranged on one side of the moving platform, directly below the bolt;

[0047] A connecting plate hole, arranged on the contact plate for the insertion of the connecting plate;

[0048] Among them, the bolt hole and the connecting plate hole are vertically communicated, and a connecting hole for the bolt to pass through is also arranged on the connecting plate.

[0049] Compared with the prior art, the beneficial effects of the present utility model are:

[0050] (1) By arranging a leg-lifting component on the mobile platform to control the flipping of the leg support on the mobile platform, the leg support is driven to flip by the lifting of the lifting part through a connecting rod. With the axis of the central hinge shaft of the bracket and the connecting rod as the axis, the leg support can flip, thereby controlling the leg to perform a leg-lifting action and conducting leg-lifting rehabilitation training.

[0051] (2) By assembling two first threaded rods and a second threaded rod with opposite threads into a coaxial integral structure using a coupling, and then driving the first threaded rod and the second threaded rod to rotate by a driving mechanism, the synchronous and opposite-direction movement of the two mobile platforms is controlled, driving the synchronous and opposite-direction movement of the two leg supports. The reciprocating movement of the leg support realizes the rehabilitation training of the leg.

[0052] (3) By arranging a switching component for selecting and controlling whether the driving component controls the movement of the mobile platform between the driving component and the two mobile platforms, the rehabilitation training of a single leg is realized, and the rehabilitation training of a single leg can be carried out according to needs, which is more convenient to use. Description of the Drawings

[0053] Figure 1 Structural schematic of the present utility model Figure 1 ;

[0054] Figure 2 Exploded view of the present utility model;

[0055] Figure 3 Structural schematic of the driving component of the present utility model;

[0056] Figure 4 Structural schematic of the present utility model Figure 2 ;

[0057] Figure 5 Structural schematic of the present utility model Figure 3 ;

[0058] Figure 6 For Figure 4 Enlarged view of part A in

[0059] Figure 7 For Figure 5 Enlarged view of part B in

[0060] Figure 8 Partial structural schematic of the present utility model.

[0061] Description of the reference numerals:

[0062] 1 - Base plate, 2 - Moving platform, 3 - Leg support, 4 - Slide rail, 5 - Lifting part, 6 - Bracket, 7 - Link rod, 8 - Motor, 9 - First threaded rod, 10 - Second threaded rod, 11 - Connecting part, 12 - Pulley 1, 13 - Pulley 2, 14 - Belt, 15 - Moving base, 16 - Connecting plate, 17 - Guide rod, 18 - Guide hole, 19 - Pin, 20 - Pin hole, 21 - Connecting plate hole, 22 - Connecting hole, 23 - Contact plate. Detailed implementation manners

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] Embodiment 1:

[0065] As Figures 1 to 8 shown, a pitch adjustment mechanism provided in this embodiment includes a base plate 1, two moving platforms 2 symmetrically arranged on the base plate 1, a leg support 3 arranged on each moving platform 2 for placing the patient's legs, a leg-lifting assembly arranged on each moving platform 2 for controlling the leg support 3 to flip on the moving platform 2, a slide rail 4 arranged on the base plate 1 for guiding the free movement of the moving platform 2 on the base plate 1, and a driving assembly arranged on the base plate 1 for controlling the two moving platforms 2 to reciprocate along the slide rail 4 on the base plate 1.

[0066] Among them, the leg-lifting assembly includes a lifting part 5 arranged inside the moving platform 2, a bracket 6 fixedly installed outside the moving platform 2, and a link rod 7. One end of the link rod 7 is hinged to the telescopic end of the lifting part 5, the other end of the link rod 7 is hinged to the leg support 3, and the center position of the link rod 7 near the center is hinged to the bracket 6. The lifting part 5 is an electric telescopic column. When the lifting part 5 rises and falls, the leg support 3 is driven to flip through the link rod 7. Taking the axis of the central hinge shaft of the bracket 6 and the link rod 7 as the axis, the leg support 3 can flip, thereby controlling the leg to make a leg-lifting movement and performing leg-lifting rehabilitation training.

[0067] Embodiment 2:

[0068] On the basis of Example 1, in order to optimize the driving structure, specifically, the driving assembly includes a driving part, a first threaded rod 9 driven by the driven part to rotate and drive one of the mobile platforms 2 to move, a second threaded rod 10 coaxially arranged with the first threaded rod 9 to drive the other mobile platform 2 to move, and a connecting part 11 that fixes the first threaded rod 9 and the second threaded rod 10 to form a rotating body, wherein the connecting part 11 is a coupling, which is a prior art, and its function is to coaxially fix the first threaded rod 9 and the second threaded rod 10 into one body, and the specific structure will not be described in detail;

[0069] The spiral directions of the first threaded rod 9 and the second threaded rod 10 are opposite. The first threaded rod 9 and the second threaded rod 10 are respectively threadedly connected to the two mobile platforms 2. When the first threaded rod 9 and the second threaded rod 10 rotate, the two mobile platforms 2 can be controlled to move synchronously in opposite directions.

[0070] The driving part includes a motor 8, a transmission mechanism that is connected to the output end of the motor 8 and controls the rotation of the first threaded rod 9 or the second threaded rod 10, wherein the transmission mechanism includes a pulley 12 coaxially fixed to the output end of the motor 8 and a pulley 2 13 coaxially fixed to the first threaded rod 9 or the second threaded rod 10, and the pulley 12 and the pulley 2 13 are connected by a belt 14. The motor 8 controls the rotation of the pulley 12, and drives the pulley 2 13 to rotate through the belt 14, thereby driving the first threaded rod 9 or the second threaded rod 10 to rotate. When the first threaded rod 9 and the second threaded rod 10 rotate, the two mobile platforms 2 move synchronously in opposite directions, thereby driving the two leg supports 3 to move synchronously in opposite directions, and the leg supports 3 move back and forth in this way to achieve leg rehabilitation training.

[0071] Embodiment 3:

[0072] On the basis of Example 2, in order to be able to control the movement of any leg rest 3 separately and realize single-leg rehabilitation training, a switching component for selecting whether to control the driving component to control the movement of the mobile platform is arranged between the driving component and the two mobile platforms 2.

[0073] Specifically, the switching assembly includes a mobile base 15 that is sleeved on the first threaded rod 9 or the second threaded rod 10 and threadedly connected to the first threaded rod 9 or the second threaded rod 10, a contact plate 23 that is sleeved on the first threaded rod 9 or the second threaded rod 10 and fixedly connected to one side of the mobile base 15, a guide assembly arranged on the mobile platform 2 for guiding the horizontal movement of the mobile base 15, and a switch assembly arranged on one side of the mobile platform 2 for controlling the connection between the mobile base 15 and the mobile platform 2.

[0074] Among them, the guiding component includes an L-shaped guiding rod 17 and a guiding hole 18 arranged on the moving platform 2. One end of the guiding rod 17 is fixedly connected to the contact plate 23. The other end of the guiding rod 17 passes through the guiding hole 18 and is slidably connected to the guiding hole 18. When the moving base 15 moves under the rotation of the first threaded rod 9 or the second threaded rod 10, it drives the guiding rod 17 to slide in the guiding hole 18. The function of the guiding rod 17 can enable the moving base 15 to move stably along the axial direction of the first threaded rod 9 or the second threaded rod 10.

[0075] Among them, the switch component includes a bolt 19 slidably arranged on one side of the moving platform 2, a bolt hole 20 arranged on the contact plate 23 for the bolt 19 to insert, a connecting plate 16 arranged on one side of the moving platform 2 and directly below the bolt 19, and a connecting plate hole 21 arranged on the contact plate 23 for the connecting plate 16 to insert. The bolt hole 20 and the connecting plate hole 21 are vertically communicated. A connecting hole 22 for the bolt 19 to pass through is also arranged on the connecting plate 16. By inserting the connecting plate 16 into the connecting plate hole 21, and then controlling the bolt 19 to slide downward, the bolt 19 is inserted into the bolt hole 20 and penetrates through the connecting hole 22, so as to fix the connecting plate 16 in the connecting plate hole 21, connect the moving base 15 and the moving platform 2 together, and thus control the reciprocating movement of the leg rest 3 through the forward and reverse rotation of the first threaded rod 9 or the second threaded rod 10. When single-leg rehabilitation training is not required, only need to pull up the bolt 19 on the healthy leg side to make the bolt 19 leave the bolt hole 20. At this time, the moving platform 2 and the moving base 15 can be separated, and the connecting plate 16 is pulled out from the connecting plate hole 21. At this time, the rotation of the first threaded rod 9 or the second threaded rod 10 can only drive the moving base 15 to move, and the moving platform 2 is not controlled to move.

[0076] Working principle: When in use, the patient places both legs on the leg rest 3. By controlling the leg-lifting component, the lifting and lowering of each electric telescopic column are respectively controlled, and the control link 7 rotates on the bracket 6, so as to control the two leg rests 3 to flip by a certain angle, and so on, to perform leg-lifting rehabilitation training on the legs. When single-leg control is required, only need to start the electric telescopic column on the required side.

[0077] During the leg-spreading training, start the motor 8 to rotate, control the pulley one 12 to rotate, drive the pulley two 13 to rotate through the belt 14, so as to drive the first threaded rod 9 or the second threaded rod 10 to rotate. According to the rehabilitation needs of the legs, for which leg the rehabilitation training is required, control the bolt 19 on its adjacent side to slide downward, so that the bolt 19 is inserted into the bolt hole 20 and penetrates through the connecting hole 22, so as to fix the connecting plate 16 in the connecting plate hole 21, connect the moving base 15 and the moving platform 2 together, and thus control the reciprocating movement of the leg rest 3 through the forward and reverse rotation of the first threaded rod 9 or the second threaded rod 10 to achieve the leg rehabilitation training.

[0078] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A spacing adjustment mechanism, characterized in that: include: Bottom plate (1); Two mobile platforms (2) are symmetrically arranged on the base plate (1); A leg support (3), arranged on each mobile platform (2) and used for placing the patient's legs; A leg-lifting assembly, arranged on each mobile platform (2), and used to control the leg support (3) to flip on the mobile platform (2); A slide rail (4) is arranged on the base plate (1) and is used to guide the mobile platform (2) to move freely on the base plate (1); A driving assembly, arranged on the base plate (1), used to control the two moving platforms (2) to move back and forth along the slide rails (4) on the base plate (1); A switching component for selecting whether the driving component controls the movement of the mobile platform is arranged between the driving component and the two mobile platforms (2).

2. A spacing adjustment mechanism according to claim 1, characterized in that: The leg raising assembly comprises: A lifting unit (5) is arranged inside the mobile platform (2); A bracket (6) is fixedly mounted on the outer side of the mobile platform (2); A connecting rod (7), one end of which is connected to the telescopic end of the lifting part (5), and the other end of which is connected to the leg support (3); Wherein, a central position close to the connecting rod (7) is hinged to the bracket (6).

3. A spacing adjustment mechanism according to claim 2, characterized in that: The lifting part (5) is an electric telescopic column.

4. A spacing adjustment mechanism according to claim 3, characterized in that: The drive assembly comprises: Drive unit; A first threaded rod (9) is driven to rotate by a driving unit to drive one of the moving platforms (2) to move; A second threaded rod (10) is coaxially arranged with the first threaded rod (9) to drive another movable platform (2) to move; A connecting portion (11), wherein the first threaded rod (9) and the second threaded rod (10) are fixedly connected so that the first threaded rod (9) and the second threaded rod (10) form a rotating body; The spiral directions of the first threaded rod (9) and the second threaded rod (10) are opposite, and the first threaded rod (9) and the second threaded rod (10) are respectively threadedly connected to the two movable platforms (2).

5. A spacing adjustment mechanism according to claim 4, characterized in that: The driving unit comprises: Motor (8); A transmission mechanism is connected to the output end of the motor (8) and controls the rotation of the first threaded rod (9) or the second threaded rod (10); The transmission mechanism comprises a pulley 1 (12) coaxially fixed to the output end of the motor (8) and a pulley 2 (13) coaxially fixed to the first threaded rod (9) or the second threaded rod (10), and the pulley 1 (12) and the pulley 2 (13) are connected to each other via a belt (14).

6. A spacing adjustment mechanism according to claim 5, characterized in that: The switching component comprises: A movable base (15) is sleeved on the first threaded rod (9) or the second threaded rod (10) and is threadedly connected to the first threaded rod (9) or the second threaded rod (10); A contact plate (23) is sleeved on the first threaded rod (9) or the second threaded rod (10) and is fixedly connected to one side of the movable base (15); A guide assembly, arranged on the mobile platform (2) and used for guiding the mobile base (15) to move horizontally; The switch assembly is arranged on one side of the mobile platform (2) and is used to control the connection between the mobile base (15) and the mobile platform (2).

7. A spacing adjustment mechanism according to claim 6, characterized in that: The guide assembly comprises: A guide rod (17) is an L-shaped rod; A guide hole (18) is arranged on the moving platform (2); One end of the guide rod (17) is fixedly connected to the contact plate (23), and the other end of the guide rod (17) passes through the guide hole (18) and is slidably connected to the guide hole (18).

8. A spacing adjustment mechanism according to claim 6, characterized in that: The switch assembly comprises: A latch (19) is slidably arranged on one side of the moving platform (2); A latch hole (20) arranged on the contact plate (23) for inserting the latch (19); A connecting plate (16) is arranged on one side of the mobile platform (2) and is located directly below the latch (19); A connecting plate hole (21), arranged on the contact plate (23) for inserting the connecting plate (16); The latch hole (20) is vertically connected to the connection plate hole (21), and a connection hole (22) for the latch (19) to pass through is also arranged on the connection plate (16).

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