Suspension rehabilitation training device

Abstract

The invention belongs to the field of rehabilitation treatment and postoperative recovery, and relates to a suspension rehabilitation training device which has the functions of being movable, telescopic, adjustable and self-locking, mainly comprises a supporting structure, a moving structure, a telescopic structure, a lifting structure and a basic training structure, and the five structures are connected with each other through bolts. The suspension rehabilitation training device provided by the invention can reduce the occupied area, can be used in a relatively narrow position, is convenient to use, improves the practicability of the device, and meets the use requirements of hospitals and families.

Description

Technical Field

[0001] This invention belongs to the field of rehabilitation therapy and postoperative recovery technology, and specifically relates to a suspension rehabilitation training device. Background Technology

[0002] In recent years, with the advancement of technology and the development of medical devices, postoperative recovery has gradually gained attention from physicians and patients' families. Suspension training, as an emerging rehabilitation therapy and postoperative recovery technique in the field of rehabilitation training, has attracted many researchers and rehabilitation hospitals for research and application. Suspension training involves suspending certain parts of the body using ropes and slings, providing a controllable unstable support plane and weight-reduction effect for active rehabilitation therapy. Physical training under these conditions promotes the movement of the core balance muscle groups of the torso, thereby improving muscle coordination, increasing joint mobility, strengthening stabilizing muscles, and enhancing the body's balance function.

[0003] Market research shows that most suspension rehabilitation training devices currently on the market occupy a large area and are fixed after installation, which reduces their practicality. Furthermore, the height of existing suspension rehabilitation training devices is fixed and cannot be adjusted. Additionally, existing suspension rehabilitation training devices are not self-locking, posing certain safety risks. Summary of the Invention

[0004] To address the problems of existing suspension rehabilitation training devices, such as large footprint, significant unused space, inconvenience in narrow spaces, and low practicality, this invention provides a suspension rehabilitation training device that reduces the footprint, allows for use in narrow spaces, is more convenient to use, improves the device's practicality, and meets the needs of hospitals and homes.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] The suspension rehabilitation training device of the present invention mainly includes:

[0007] The support structure includes: a first support leg and a second support leg arranged in pairs on the left and right sides of the suspension rehabilitation trainer; a first bottom support frame and a second bottom support frame respectively fixed to the lower ends of the two pairs of first and second support legs; a retractable support seat connecting frame one; a retractable support seat connecting frame two; a first retractable support seat and a second retractable support seat respectively connected to both ends of the retractable support seat connecting frame one; a third retractable support seat and a fourth retractable support seat respectively connected to both ends of the retractable support seat connecting frame two; the first retractable support seat and the second retractable support seat are both axially connected to the first bottom support frame; the third retractable support seat and the fourth retractable support seat are both axially connected to the second bottom support frame;

[0008] A movable structure installed at the lower ends of the first and second bottom support frames;

[0009] The lifting structure includes: a first lifting mechanism and a second lifting mechanism connected to the first lifting mechanism via steel wires; the first lifting mechanism is connected to a first support leg, a second support leg, a first retractable support seat, and a second retractable support seat on the right side, respectively; the second lifting mechanism is connected to a first support leg, a second support leg, a third retractable support seat, and a fourth retractable support seat on the left side, respectively; the middle of the first retractable support seat connecting frame is connected to the first lifting mechanism, and the middle of the second retractable support seat connecting frame is connected to the second lifting mechanism;

[0010] Telescopic structures are installed on the first and second support legs on the left and right sides;

[0011] A basic training structure installed on the telescopic structure.

[0012] Furthermore, the first, second, third, and fourth retractable support seats all have the same structural composition. The first retractable support seat includes a first connecting rod, a second connecting rod, a first stabilizing leg, and a first rotating shaft. The first stabilizing leg is connected to the end of the second connecting rod, and the beginning of the second connecting rod is connected to the end of the first connecting rod. The beginning of the first connecting rod is connected to one end of the retractable support seat connecting frame via a shaft, and the middle of the first connecting rod is connected to one end of the first bottom support frame via the first rotating shaft. The second retractable support seat includes a third connecting rod, a fourth connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a third ... third connecting rod, a fourth connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a fourth connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a third connecting rod, a fourth connecting rod, a third connecting rod, a third connecting rod, a The system includes a connecting rod, a second stabilizing leg, and a second pivot. The second stabilizing leg is connected to the end of a fourth connecting rod, and the beginning of the fourth connecting rod is connected to the end of a third connecting rod. The beginning of the third connecting rod is connected to the other end of a retractable support frame via a pivot. The middle of the third connecting rod is connected to the other end of a first bottom support frame via a second pivot. When an upward force is applied to the retractable support frame, the first and second retractable supports are retracted upwards. When a downward force is applied to the retractable support frame, the first and second retractable supports are extended downwards.

[0013] Furthermore, the movable structure includes: a first omnidirectional brake caster, a second omnidirectional brake caster, a third omnidirectional brake caster, and a fourth omnidirectional brake caster; the first omnidirectional brake caster and the second omnidirectional brake caster are respectively installed at both ends of the bottom of the first bottom support frame, and the third omnidirectional brake caster and the fourth omnidirectional brake caster are respectively installed at both ends of the bottom of the second bottom support frame.

[0014] Furthermore, the first lifting mechanism includes: a crank transmission rod, a crank connected to one end of the crank transmission rod, a first fixed plate and a second fixed plate respectively fixed to both sides of the first bottom support frame, two first fixed blocks respectively fixed to the upper and lower ends of the first fixed plate, a first optical shaft fixed to the two first fixed blocks at its upper and lower ends and passing through the first sliding sleeve in the middle, a lifting frame, a first pulley seat fixed in the middle position of the lifting frame, a first sliding sleeve with its outer ring fixed to the lifting frame, a connecting screw fixedly connected at its lower end to a retractable support base connecting frame, a connecting rod connected at its lower end to the upper end of the connecting screw, and two second fixed blocks respectively fixed to the upper and lower ends of the second fixed plate. The system includes a fixed block, a second optical shaft with its upper and lower ends fixed to two second fixed blocks and passing through a second sliding sleeve in the middle, a second sliding sleeve with its outer ring fixed to the lifting frame, a slider fitted onto the connecting screw and fixed at the middle position of the inner surface of the first bottom support frame, a connecting plate fixed to the first and second support legs on the right side, a second pulley seat fixed to the outer surface of the connecting plate, a crank transmission rod mounting seat fixed to the inner surface of the connecting plate, the other end of the crank transmission rod passing through the first support leg on the right side and connected to the crank transmission rod mounting seat, a drive connecting rod with its upper end passing through the crank transmission rod and fixed to the crank transmission rod, and the lower end of the drive connecting rod being connected to the upper end of the connecting rod via a shaft.

[0015] Insert the crank handle into the crank drive rod, rotate the crank handle counterclockwise to drive the connecting rod, connecting screw, and slider downward to make the first retractable support and the second retractable support folded up; insert the crank handle into the crank drive rod, rotate the crank handle clockwise to drive the connecting rod, connecting screw, and slider upward to make the first retractable support and the second retractable support folded up.

[0016] Furthermore, the difference between the second lifting mechanism and the first lifting mechanism is that in the second lifting mechanism, the second pulley seat is replaced by a transmission mechanism, and the first pulley seat is replaced by a third pulley seat. The other structural components of the second lifting mechanism are the same as those of the first lifting mechanism. The third pulley seat is fixed to the lifting frame in the second lifting mechanism. The transmission mechanism is fixed to the first support leg and the second support leg on the left side.

[0017] Furthermore, the transmission mechanism includes: a transmission shaft, a U-shaped connector, a lead screw, a bearing, a large gear, and a small gear; the crank handle in the second lifting mechanism is inserted into the transmission shaft, the U-shaped connector is fixed to the outer surface of the connecting plate in the second lifting mechanism, the transmission shaft is sequentially inserted into the U-shaped connector and the connecting plate in the second lifting mechanism, and the small gear is fixed to the end of the transmission shaft; the bearing is mounted on the transmission shaft and is located between the U-shaped connector and the connecting plate in the second lifting mechanism; one end of the lead screw is connected to the U-shaped connector, the other end of the lead screw is inserted into the connecting plate in the second lifting mechanism, and the large gear is fixed to the end of the lead screw inserted into the connecting plate; the large gear and the small gear mesh with each other.

[0018] Furthermore, the first end of the steel wire passes through a small hole on the steel wire screw and is knotted and fixed in the hole. Then, the first end of the steel wire is sequentially wound around the steel wire screw, bearing, third pulley seat, first pulley seat, and second pulley seat. Next, it is sequentially wound around the second pulley seat, first pulley seat, third pulley seat, bearing, and steel wire screw again. Finally, the end of the steel wire passes through a small hole on the steel wire screw and is knotted and fixed in the hole. After the transmission shaft is rotated clockwise by a motor or manually, the meshing action between the large and small gears drives the steel wire screw to rotate, tightening the steel wire. At this time, the steel wire is tightened through the third pulley seat, first… The combined action of the pulley seat and the second pulley seat causes the lifting frame in the second lifting mechanism and the lifting frame in the first lifting mechanism to rise, thereby driving the first telescopic lower crossbeam and the second telescopic lower crossbeam to rise as a whole. When the drive shaft is rotated counterclockwise by a motor or manually, the meshing action between the large gear and the small gear drives the wire screw to rotate, releasing the wire. At this time, the combined action of the third pulley seat, the first pulley seat and the second pulley seat causes the lifting frame in the second lifting mechanism and the lifting frame in the first lifting mechanism to fall, thereby driving the first telescopic lower crossbeam and the second telescopic lower crossbeam to fall as a whole.

[0019] Furthermore, the telescopic structure includes: a first telescopic upper crossbeam with both ends connected to the upper ends of the second support legs on the left and right sides respectively; a second telescopic upper crossbeam with both ends connected to the upper ends of the first support legs on the left and right sides respectively; a first telescopic lower crossbeam with both ends fixed to the first lifting mechanism and the second lifting mechanism respectively; and a second telescopic lower crossbeam with both ends fixed to the first lifting mechanism and the second lifting mechanism respectively.

[0020] Furthermore, the first telescopic upper crossbeam 11 includes an upper crossbeam one, an upper crossbeam two, an upper crossbeam fixing block one, and an upper crossbeam fixing block two; the upper crossbeam two is inserted into the upper crossbeam one, and the left end of the connection between the upper crossbeam two and the upper crossbeam one is fixed to the upper end of the second support leg on the left side through the upper crossbeam fixing block one, and the right end of the connection between the upper crossbeam two and the upper crossbeam one is fixed to the upper end of the second support leg on the right side through the upper crossbeam fixing block two; the second telescopic upper crossbeam includes an upper crossbeam three, an upper crossbeam four, an upper crossbeam fixing block three, and an upper crossbeam fixing block four; the upper crossbeam three is inserted into the upper crossbeam four, and the left end of the connection between the upper crossbeam three and the upper crossbeam four is fixed to the upper end of the first support leg on the left side through the upper crossbeam fixing block three, and the right end of the connection between the upper crossbeam three and the upper crossbeam four is fixed to the upper end of the first support leg on the right side through the upper crossbeam fixing block four; the first telescopic lower crossbeam includes a lower crossbeam one, The second telescopic lower crossbeam comprises a second lower crossbeam, a third lower crossbeam, a fourth lower crossbeam, a fifth lower crossbeam, and a sixth lower crossbeam telescopic slider. The second lower crossbeam is connected to the first lower crossbeam via the sixth lower crossbeam telescopic slider. The left end of the connection between the second lower crossbeam and the first lower crossbeam is fixed to the lifting frame of the second lifting mechanism via the sixth lower crossbeam, and the right end of the connection between the second lower crossbeam and the first lower crossbeam is fixed to the lifting frame of the first lifting mechanism via the sixth lower crossbeam, and the right end of the connection between the second lower crossbeam and the first lower crossbeam is fixed to the lifting frame of the first lifting mechanism via the sixth lower crossbeam, and the right end of the connection between the fourth lower crossbeam and the third lower crossbeam is fixed to the lifting frame of the second lifting mechanism via the sixth lower crossbeam, and the right end of the connection between the fourth lower crossbeam and the third lower crossbeam is fixed to the lifting frame of the first lifting mechanism via the sixth lower crossbeam, and the right end of the connection between the fourth lower crossbeam and the third lower crossbeam is fixed to the lifting frame of the first lifting mechanism via the sixth lower crossbeam, and the lower crossbeam is connected to the third lower crossbeam ..., and the lower crossbeam is connected to the third lower crossbeam, and the lower crossbeam is connected to the third lower crossbeam, and the lower crossbeam is connected to the third lower crossbeam, and the lower crossbeam is connected to the third lower crossbeam, and the

[0021] Furthermore, the basic training structure includes: multiple basic trainers; each basic trainer includes: a basic trainer upper plate, a first L-shaped fixing frame and a second L-shaped fixing frame respectively connected to both ends of the basic trainer upper plate, a locking rod fixing seat vertically fixed on the first L-shaped fixing frame, the locking rod fixing seat having a through hole, a handle fixing seat vertically fixed on the second L-shaped fixing frame, the handle fixing seat having a through hole, a basic trainer lower plate fixed to the lower ends of the first L-shaped fixing frame and the second L-shaped fixing frame, a crossbeam locking rod, the front end of the crossbeam locking rod passing through the through hole of the handle fixing seat and the through hole of the locking rod fixing seat in sequence, and the middle part of the crossbeam locking rod being located at the locking rod fixing seat and the handle fixing seat. The part between the components includes a raised structure, a handle connected to the rear end of the crossbeam locking rod via a handle fixing pin, and a housing fixed to the outside of the basic trainer. The upper plate and lower plate of the basic trainer are connected by bolts. The upper end of the handle is connected to the handle fixing seat via another handle fixing pin. The upper end of the housing is connected to the first L-shaped fixing frame, the upper plate of the basic trainer, and the second L-shaped fixing frame. The locking rod fixing seat, the handle, and the lower end of the handle fixing seat all extend outside the housing. The housing has two through holes through which the first telescopic upper crossbeam and the second telescopic upper crossbeam pass, respectively, to connect the first basic trainer to the first telescopic upper crossbeam and the second telescopic upper crossbeam.

[0022] The beneficial effects of this invention are:

[0023] 1. Overall structural stability: Compared with existing technical solutions, this invention can consider whether to change the state of the retractable support base based on the flatness of the ground, thereby better improving the overall structural stability.

[0024] 2. In terms of mobility: Compared with existing technical solutions, this invention is equipped with four omnidirectional brake casters, allowing users to adjust the position of the suspension rehabilitation trainer according to their needs and lock the current position.

[0025] 3. Telescopic storage: Compared with existing technical solutions, the present invention perfectly realizes the telescopic storage function through the design of upper and lower telescopic beams, making more effective and reasonable use of space.

[0026] 4. Lifting Function: Compared with existing technologies, this invention uses a series connection between a pulley seat and a steel wire, making the lifting function more labor-saving. Compared with existing methods that use a lead screw and bearings to achieve lifting, the lifting method of this invention is more stable and produces less noise.

[0027] 5. Regarding the basic training device: Compared with existing technical solutions, this invention achieves the self-locking function of the basic training device through the crossbeam locking rod 13-4, thereby improving the safety attributes of the overall structure.

[0028] 6. Overall size: The invention has a small overall structure and good spatial adaptability in terms of space occupation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a suspension rehabilitation training device according to the present invention.

[0030] Figure 2 This is a schematic diagram of a telescopic structure.

[0031] Figure 3 This is a schematic diagram of the first lifting mechanism.

[0032] Figure 4 This is a schematic diagram of the first lifting mechanism.

[0033] Figure 5 This is a schematic diagram showing the connection between the connecting rod, connecting plate, crank transmission rod mounting base, and drive linkage in the first lifting mechanism.

[0034] Figure 6 This is a schematic diagram showing the connection between the connecting rod, connecting plate, crank transmission rod mounting base, and drive linkage in the first lifting mechanism.

[0035] Figure 7 This is a schematic diagram of the second lifting mechanism.

[0036] Figure 8 This is a schematic diagram of the transmission structure.

[0037] Figure 9 This is a schematic diagram showing the connection relationship between the first lifting mechanism, the second lifting mechanism, and the steel wire.

[0038] Figure 10 This is a schematic diagram of the overall structure of the first basic trainer.

[0039] Figure 11 This is a schematic diagram of the internal structure of the first basic trainer.

[0040] Figure 12 This is a schematic diagram of the internal structure of the first basic trainer.

[0041] Figure 13 This is a structural schematic diagram of the crossbeam locking rod. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] This invention provides a suspension rehabilitation training device that is movable, retractable, height-adjustable, and self-locking, thus improving safety during use. Figure 1As shown, its specific structure includes five components: a support structure, a moving structure, a telescopic structure, a lifting structure, and a basic training structure. These five components are connected to each other using bolts.

[0044] Among them, such as Figure 1 As shown, the support structure mainly includes: a first support leg 1, a second support leg 2, a first retractable support base 3, a second retractable support base 4, a third retractable support base 5, a fourth retractable support base 6, a first bottom support frame 19, a second bottom support frame 20, a retractable support base connecting frame one 21, and a retractable support base connecting frame two 22.

[0045] The first support leg 1 and the second support leg 2 have the same structural composition. Furthermore, there are two of each type of support leg, with one first support leg 1 and one second support leg 2 forming a pair. These two pairs of support legs are installed on the left and right sides of the suspension rehabilitation training device, respectively, and both pairs of support legs are installed vertically.

[0046] The second bottom support frame 20 is fixed to the lower end of the first support leg 1 and the second support leg 2 on the left side, and the first bottom support frame 19 is fixed to the lower end of the first support leg 1 and the second support leg 2 on the right side; the middle of the retractable support seat connecting frame one 21 and the middle of the retractable support seat connecting frame two 22 are both connected to the lifting structure; the first retractable support seat 3 and the second retractable support seat 4 are respectively connected to both ends of the retractable support seat connecting frame one 21, and the third retractable support seat 5 and the fourth retractable support seat 6 are respectively connected to both ends of the retractable support seat connecting frame two 22. At the same time, the first retractable support seat 3 and the second retractable support seat 4 are both axially connected to the first bottom support frame 19, and the third retractable support seat 5 and the fourth retractable support seat 6 are both axially connected to the second bottom support frame 20.

[0047] The first retractable support base 3, the second retractable support base 4, the third retractable support base 5, and the fourth retractable support base 6 all have the same structural composition. The following description uses the first retractable support base 3 and the second retractable support base 4 as examples to illustrate their detailed composition. Figure 3As shown, the first retractable support base 3 mainly includes: a first connecting rod 3-1, a second connecting rod 3-2, a first stabilizing leg 3-3, and a first rotating shaft 3-4. The first stabilizing leg 3-3 is connected to the end of the second connecting rod 3-2, and the first end of the second connecting rod 3-2 is connected to the end of the first connecting rod 3-1. The first end of the first connecting rod 3-1 is connected to one end of the retractable support base connecting frame 21 via a shaft. Furthermore, the middle of the first connecting rod 3-1 is connected to one end of the first bottom support frame 19 via the first rotating shaft 3-4. The second retractable support base 4 mainly includes: a third link 4-1, a fourth link 4-2, a second stabilizing leg 4-3, and a second pivot 4-4. The second stabilizing leg 4-3 is connected to the end of the fourth link 4-2, and the first end of the fourth link 4-2 is connected to the end of the third link 4-1. The first end of the third link 4-1 is connected to the other end of the retractable support base connecting frame 21 via a pivot. Furthermore, the middle of the third link 4-1 is connected to the other end of the first bottom support frame 19 via the second pivot 4-4. When an upward force is applied to the retractable support base connecting frame 21, the first retractable support base 3 and the second retractable support base 4 can be retracted upwards. When a downward force is applied to the retractable support base connecting frame 21, the first retractable support base 3 and the second retractable support base 4 can be extended downwards. The height of the first stabilizing leg 3-3 and the second stabilizing leg 4-3 can be adjusted according to the flatness of the ground to make the overall structure more stable.

[0048] In the support structure, by shaking the crank 24, the retraction and extension states of the first retractable support seat 3, the second retractable support seat 4, the third retractable support seat 5, and the fourth retractable support seat 6 can be controlled according to different ground flatness, thereby improving the overall structural stability.

[0049] Among them, such as Figure 1 As shown, the movable structure mainly includes: a first swivel brake caster 7, a second swivel brake caster 8, a third swivel brake caster 9, and a fourth swivel brake caster 10. The first swivel brake caster 7 and the second swivel brake caster 8 are respectively installed at both ends of the bottom of the first bottom support frame 19, and the third swivel brake caster 9 and the fourth swivel brake caster 10 are respectively installed at both ends of the bottom of the second bottom support frame 20. The first swivel brake caster 7, the second swivel brake caster 8, the third swivel brake caster 9, and the fourth swivel brake caster 10 enable the overall mobility of the suspension rehabilitation trainer, allowing it to be easily moved and easily fixed in its place of use, making it flexible and convenient to use. Users can push the entire structure of the suspension rehabilitation trainer from different directions, causing it to move in the direction of the push.

[0050] Among them, such as Figure 1As shown, the telescopic structure mainly includes: a first telescopic upper crossbeam 11, a second telescopic upper crossbeam 12, a first telescopic lower crossbeam 17, and a second telescopic lower crossbeam 18. The two ends of the first telescopic upper crossbeam 11 are respectively connected to the upper ends of the second support legs 2 on the left and right sides, and the two ends of the second telescopic upper crossbeam 12 are respectively connected to the upper ends of the first support legs 1 on the left and right sides.

[0051] Specifically, such as Figure 2 As shown, the first telescopic upper crossbeam 11 mainly consists of upper crossbeam one 11-1, upper crossbeam two 11-2, upper crossbeam fixing block one 11-3, and upper crossbeam fixing block two 11-4. Upper crossbeam two 11-2 is inserted into upper crossbeam one 11-1. Then, the left end of the connecting body between upper crossbeam two 11-2 and upper crossbeam one 11-1 is fixed to the upper end of the second support leg 2 on the left side using bolts through upper crossbeam fixing block one 11-3. The right end of the connecting body between upper crossbeam two 11-2 and upper crossbeam one 11-1 is fixed to the upper end of the second support leg 2 on the right side using bolts through upper crossbeam fixing block two 11-4.

[0052] Specifically, such as Figure 2 As shown, the second telescopic upper crossbeam 12 mainly consists of upper crossbeam three 12-1, upper crossbeam four 12-2, upper crossbeam fixing block three 12-3, and upper crossbeam fixing block four 12-4. Upper crossbeam three 12-2 is inserted into upper crossbeam four 12-1. Then, the left end of the connector between upper crossbeam three 12-2 and upper crossbeam four 12-1 is fixed to the upper end of the first support leg 1 on the left side using bolts via upper crossbeam fixing block three 12-3. The right end of the connector between upper crossbeam three 12-2 and upper crossbeam four 12-1 is fixed to the upper end of the first support leg 1 on the right side using bolts via upper crossbeam fixing block four 12-4.

[0053] Specifically, such as Figure 2 As shown, the first telescopic lower crossbeam 17 mainly consists of lower crossbeam one 17-1, lower crossbeam two 17-2, lower crossbeam fixing block one 17-3, lower crossbeam fixing block two 17-4, and lower crossbeam telescopic slider one 17-5. Lower crossbeam two 17-2 is connected to lower crossbeam one 17-1 via lower crossbeam telescopic slider one 17-5. The left end of the connecting body between lower crossbeam two 17-2 and lower crossbeam one 17-1 is fixed to the lifting frame 29 of the second lifting mechanism B by bolting through lower crossbeam fixing block one 17-3. The right end of the connecting body between lower crossbeam two 17-2 and lower crossbeam one 17-1 is fixed to the lifting frame 29 of the first lifting mechanism A by bolting through lower crossbeam fixing block two 17-4.

[0054] Specifically, such as Figure 2As shown, the second telescopic lower crossbeam 18 mainly consists of lower crossbeam three 18-1, lower crossbeam four 18-2, lower crossbeam fixing block three 18-3, lower crossbeam fixing block four 18-3, and lower crossbeam telescopic slider two 18-5. Lower crossbeam four 18-2 is connected to lower crossbeam three 18-1 via lower crossbeam telescopic slider two 18-5. The left end of the connecting body between lower crossbeam four 18-2 and lower crossbeam three 18-1 is fixed to the lifting frame 29 of the second lifting mechanism B by bolting through lower crossbeam fixing block four 18-3. The right end of the connecting body between lower crossbeam four 18-2 and lower crossbeam three 18-1 is fixed to the lifting frame 29 of the first lifting mechanism A by bolting through lower crossbeam fixing block three 18-3.

[0055] Users can push or pull the first support leg 1 or the second support leg 2. The stretching and telescopic functions of the suspension rehabilitation trainer are realized through the interaction between the first telescopic upper crossbeam 11, the second telescopic upper crossbeam 12, the first telescopic lower crossbeam 17 and the second telescopic lower crossbeam 18 and the structural design.

[0056] Among them, such as Figure 1 As shown, the lifting structure mainly includes: a first lifting mechanism A, a second lifting mechanism B, and a steel wire 50. The first lifting mechanism A and the second lifting mechanism B are connected by the steel wire 50. The first lifting mechanism A is connected to the first support leg 1, the second support leg 2, the first retractable support seat 3, and the second retractable support seat 4 on the right side, respectively. The second lifting mechanism B is connected to the first support leg 1, the second support leg 2, the third retractable support seat 5, and the fourth retractable support seat 6 on the left side, respectively. The lifting function is achieved through the combination of multiple pulley seats and the steel wire 50.

[0057] The following section uses the first lifting mechanism A as an example to introduce its detailed structural composition.

[0058] like Figures 3 to 6As shown, the first lifting mechanism A mainly includes: a crank transmission rod 23, a crank 24, a first fixing block 25, a first fixing plate 26, a first optical shaft 27, a first pulley seat 28, a lifting frame 29, a first sliding sleeve 30, a connecting rod 31, a second fixing block 32, a second optical shaft 33, a second fixing plate 34, a connecting screw 35, a second sliding sleeve 36, a slider 37, a connecting plate 38, a second pulley seat 39, a crank transmission rod mounting base 40, and a driving connecting rod 41; the second pulley seat 39 is fixed to the outer surface of the connecting plate 38, and the connecting plate 38 is fixed to the first support leg 1 and the second support leg 2 on the right side; the crank transmission rod mounting base 40... Fixed to the inner surface of the connecting plate 38, one end of the rocker handle 24 is connected to one end of the rocker handle transmission rod 23, and the other end of the rocker handle transmission rod 23 passes through the first support leg 1 on the right and is connected to the rocker handle transmission rod mounting seat 40. At the same time, the upper end of the drive connecting rod 41 passes through the rocker handle transmission rod 23 and is fixed to the rocker handle transmission rod 23. The lower end of the drive connecting rod 41 is connected to the upper end of the connecting rod 31 by a shaft. The lower end of the connecting rod 31 is connected to the upper end of the connecting screw 35. The lower end of the connecting screw 35 is fixedly connected to the retractable support base connecting frame 21. The slider 37 is fitted on the connecting screw 35, and the side of the slider 37 is fixed at the middle position of the inner surface of the first bottom support frame 19. The first fixing plate 26 and the second fixing plate 34 are respectively fixed to both sides of the first bottom support frame 19. There are two first fixing blocks 25, which are fixed to the upper and lower ends of the first fixing plate 26 respectively. The upper and lower ends of the first optical axis 27 are fixed to the two first fixing blocks 25 respectively, and the first optical axis 27 passes through the middle of the first sliding sleeve 30. The outer ring of the first sliding sleeve 30 is fixed to the lifting frame 29. Similarly, there are two second fixing blocks 32, which are fixed to the upper and lower ends of the second fixing plate 34 respectively. The upper and lower ends of the second optical axis 33 are fixed to the two second fixing blocks 32 respectively, and the second optical axis 33 passes through the middle of the second sliding sleeve 36. The outer ring of the second sliding sleeve 36 is fixed to the lifting frame 29. The first pulley seat 28 is fixed in the middle position of the lifting frame 29.

[0059] The working principle of the first lifting mechanism A is as follows: The crank handle 24 is inserted into the crank drive rod 23. Rotating the crank handle 24 counterclockwise drives the connecting rod 31, connecting screw 35, and slider 37 downwards, thereby causing the first retractable support base 3 and the second retractable support base 4 to retract into their folded state. Figure 4 As shown. Insert the crank handle 24 into the crank drive rod 23, and rotate the crank handle 24 clockwise to drive the connecting rod 31, connecting screw 35, and slider 37 upward, thereby causing the first retractable support 3 and the second retractable support 4 to exhibit their supporting form, as shown. Figure 3 As shown.

[0060] like Figure 7As shown, the difference between the second lifting mechanism B and the first lifting mechanism A is that in the second lifting mechanism B, the second pulley seat 39 is replaced by a transmission mechanism 43, and the first pulley seat 28 is replaced by a third pulley seat 42. Apart from these differences, the other structural components of the second lifting mechanism B and the first lifting mechanism A are the same. The third pulley seat 42 is fixed to the lifting frame 29 in the second lifting mechanism B by bolts; the transmission mechanism 43 is fixed to the first support leg 1 and the second support leg 2 on the left side by bolts.

[0061] Among them, such as Figure 8 As shown, the transmission mechanism 43 mainly includes: a transmission shaft 44, a U-shaped connector 45, a lead screw 46, a bearing 47, a large gear 48, and a small gear 49; the crank 24 in the second lifting mechanism B is inserted into the transmission shaft 44, the U-shaped connector 45 is fixed to the outer surface of the connecting plate 38 in the second lifting mechanism B, the transmission shaft 44 is sequentially inserted into the U-shaped connector 45 and the connecting plate 38 in the second lifting mechanism B, and the small gear 49 is fixed to the end of the transmission shaft 44 by a shaft clamp connection, the bearing 47 is mounted on the transmission shaft 44, and the bearing 47 is located between the U-shaped connector 45 and the connecting plate 38 in the second lifting mechanism B; one end of the lead screw 46 is connected to the U-shaped connector 45, the other end of the lead screw 46 is inserted into the connecting plate 38 in the second lifting mechanism B, and the large gear 48 is fixed to the end of the lead screw 46 inserted into the connecting plate 38 by a shaft clamp connection; wherein, the large gear 48 and the small gear 49 mesh with each other.

[0062] The working principle of the second lifting mechanism B is the same as that of the first lifting mechanism A, the difference being that, Figure 8 and Figure 9As shown, the first end of the steel wire 50 is passed through the small hole on the steel wire rod 46 and knotted to fix it in the hole. Then, the first end of the steel wire 50 is wound around the steel wire rod 46, the bearing 47, the third pulley seat 42, the first pulley seat 28, and the second pulley seat 39 in sequence. Then, the first end of the steel wire 50 is wound around the second pulley seat 39, the first pulley seat 28, the third pulley seat 42, the bearing 47, and the steel wire rod 46 in sequence. Finally, the end of the steel wire 50 is passed through the small hole on the steel wire rod 46 and knotted to fix it in the hole. When the drive shaft 44 is rotated clockwise by a motor or manually, the meshing action between the large gear 48 and the small gear 49 drives the lead screw 46 to rotate, tightening the steel wire 50. At this time, through the combined action of the third pulley seat 42, the first pulley seat 28, and the second pulley seat 39, the lifting frame 29 in the second lifting mechanism B and the first lifting mechanism A can rise, thereby driving the first telescopic lower crossbeam 17 and the second telescopic lower crossbeam 18 to rise as a whole. Similarly, when the drive shaft 44 is rotated counterclockwise by a motor or manually, the meshing action between the large gear 48 and the small gear 49 drives the lead screw 46 to rotate, loosening the steel wire 50. At this time, through the combined action of the third pulley seat 42, the first pulley seat 28, and the second pulley seat 39, the lifting frame 29 in the second lifting mechanism B and the first lifting mechanism A can fall, thereby driving the first telescopic lower crossbeam 17 and the second telescopic lower crossbeam 18 to fall as a whole. This completes the lifting and adjusting function of the suspension rehabilitation training device.

[0063] The basic training structure is designed with a self-locking function and mainly includes: a first basic trainer 13, a second basic trainer 14, a third basic trainer 15, and a fourth basic trainer 16. The first basic trainer 13, the second basic trainer 14, the third basic trainer 15, and the fourth basic trainer 16 have identical structural compositions.

[0064] The following section uses the first basic trainer 13 as an example to introduce its detailed composition.

[0065] like Figures 10 to 12As shown, the first basic trainer 13 mainly consists of a first L-shaped fixing frame 13-1, a locking rod fixing seat 13-2, a basic trainer lower plate 13-3, a crossbeam locking rod 13-4, a handle fixing pin 13-5, a handle 13-6, a handle fixing seat 13-7, a basic trainer upper plate 13-8, a second L-shaped fixing frame 13-9, and a shell 13-10. The upper right side of the first L-shaped fixing frame 13-1 is connected to the left side of the upper plate 13-8 of the basic trainer; the right side of the upper plate 13-8 of the basic trainer is connected to the upper left side of the second L-shaped fixing frame 13-9; the left side of the lower plate 13-3 of the basic trainer is connected to the lower right side of the first L-shaped fixing frame 13-1; the right side of the lower plate 13-3 of the basic trainer is connected to the lower left side of the second L-shaped fixing frame 13-9; and the upper plate 13-8 and the lower plate 13-3 of the basic trainer are connected by bolts. The locking rod fixing seat 13-2 is vertically fixed to the first L-shaped fixing frame 13-1; the locking rod fixing seat 13-2 is provided with a through hole 13-2-1 for the crossbeam. The front end of the locking rod 13-4 passes through; the handle fixing seat 13-7 is vertically fixed on the second L-shaped fixing bracket 13-9; the handle fixing seat 13-7 is provided with a through hole 13-7-1 for the front end of the beam locking rod 13-4 to pass through; the front end of the beam locking rod 13-4 passes through the through hole 13-7-1 of the handle fixing seat 13-7 and the through hole 13-2-1 of the locking rod fixing seat 13-2 in sequence; the rear end of the beam locking rod 13-4 is connected to the handle 13-6 through the handle fixing pin 13-5, and the middle part of the beam locking rod 13-4, that is, the part located between the locking rod fixing seat 13-2 and the handle fixing seat 13-7, is provided with a protruding structure 13-4-1 (e.g., Figure 13 (As shown), it is used to realize the locking function of the first basic trainer 13; the upper end of the handle 13-6 is connected to the handle fixing seat 13-7 through another handle fixing pin 13-5. The outer shell 13-10 is fixed to the outside of the first basic trainer 13, and the upper end of the outer shell 13-10 is connected to the first L-shaped fixing frame 13-1, the basic trainer upper plate 13-8, and the second L-shaped fixing frame 13-9. Among them, the lower ends of the locking rod fixing seat 13-2, the handle 13-6, and the handle fixing seat 13-7 all extend out of the outer shell 13-10. The outer shell 13-10 is provided with two through holes for the first telescopic upper crossbeam 11 and the second telescopic upper crossbeam 12 to pass through. Specifically, the first telescopic upper crossbeam 11 and the second telescopic upper crossbeam 12 are respectively passed through the two through holes of the outer shell 13-10 to realize the connection between the first basic trainer 13 and the first telescopic upper crossbeam 11 and the second telescopic upper crossbeam 12, as shown. Figure 1 As shown. Similarly, the second basic trainer 14, the third basic trainer 15 and the fourth basic trainer 16 are installed in the same way as the first basic trainer 13.

[0066] like Figure 11As shown, the user faces the handle 13-6 and pulls the handle 13-6 to the user's side, that is, pulls the handle 13-6 to the right. The handle 13-6 drives the handle fixing pin 13-5 and the crossbeam locking rod 13-4 to move horizontally to the right. At this time, the first basic training device 13 can be positioned by the protrusion structure 13-4-1 on the crossbeam locking rod 13-4 (the protrusion structure 13-4-1 is stuck on the outside of the inner wall of the second telescopic upper crossbeam 12, and there is no through hole on the inner wall of the second telescopic upper crossbeam 12). Locked state; Since through holes are provided on both sides of the first telescopic upper crossbeam 11 and on the outer side of the second telescopic upper crossbeam 12, the front end of the crossbeam locking rod 13-4 can pass through. Therefore, when the user faces the handle 13-6 and pushes the handle 13-6 to the user's side, that is, pushes the handle 13-6 to the left, the handle 13-6 drives the handle fixing pin 13-5 and the crossbeam locking rod 13-4 to move horizontally to the left, so that the first basic training device 13 can be in the released state.

[0067] The present invention discloses a suspension rehabilitation training device, the specific method of which is as follows:

[0068] For example, when performing right arm or leg stretching rehabilitation training, the stretching rope can be fixed to handle 13-6, and then the mattress can be placed on the first telescopic lower crossbeam 17 and the second telescopic lower crossbeam 18. The patient lies on the mattress with their head facing the second lifting mechanism B. Figure 1 (Left side) Then you can start stretching rehabilitation training for the right arm or leg. For example, fix the arm to the stretching rope and then pull it down to achieve rehabilitation training. The same applies to the leg. The stretching rope should have a certain elasticity to meet the training needs.

[0069] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspension rehabilitation training device, characterized in that, include: The support structure includes: a first support leg and a second support leg arranged in pairs on the left and right sides of the suspension rehabilitation trainer; a first bottom support frame and a second bottom support frame respectively fixed to the lower ends of the two pairs of first and second support legs; a retractable support seat connecting frame one; a retractable support seat connecting frame two; a first retractable support seat and a second retractable support seat respectively connected to both ends of the retractable support seat connecting frame one; a third retractable support seat and a fourth retractable support seat respectively connected to both ends of the retractable support seat connecting frame two; the first retractable support seat and the second retractable support seat are both axially connected to the first bottom support frame; the third retractable support seat and the fourth retractable support seat are both axially connected to the second bottom support frame; A movable structure installed at the lower ends of the first and second bottom support frames; The lifting structure includes: a first lifting mechanism and a second lifting mechanism connected to the first lifting mechanism via steel wires; the first lifting mechanism is connected to a first support leg, a second support leg, a first retractable support seat, and a second retractable support seat on the right side, respectively; the second lifting mechanism is connected to a first support leg, a second support leg, a third retractable support seat, and a fourth retractable support seat on the left side, respectively; the middle of the first retractable support seat connecting frame is connected to the first lifting mechanism, and the middle of the second retractable support seat connecting frame is connected to the second lifting mechanism; Telescopic structures are installed on the first and second support legs on the left and right sides; A basic training structure installed on the telescopic structure; The first lifting mechanism includes: a crank transmission rod, a crank connected to one end of the crank transmission rod, a first fixed plate and a second fixed plate respectively fixed to both sides of the first bottom support frame, two first fixed blocks respectively fixed to the upper and lower ends of the first fixed plate, a first optical shaft with its upper and lower ends fixed to the two first fixed blocks and passing through the middle of a first sliding sleeve, a lifting frame, a first pulley seat fixed in the middle position of the lifting frame, a first sliding sleeve with its outer ring fixed to the lifting frame, a connecting screw whose lower end is fixedly connected to a retractable support base connecting frame, a connecting rod whose lower end is connected to the upper end of the connecting screw, and two second fixed blocks respectively fixed to the upper and lower ends of the second fixed plate. The second optical shaft is fixed at both ends to two second fixed blocks and passes through the second sliding sleeve in the middle; the second sliding sleeve is fixed on the outer ring of the lifting frame; the slider is fitted on the connecting screw and fixed at the middle position of the inner surface of the first bottom support frame; the connecting plate is fixed on the first support leg and the second support leg on the right side; the second pulley seat is fixed on the outer surface of the connecting plate; the crank transmission rod mounting seat is fixed on the inner surface of the connecting plate; the other end of the crank transmission rod passes through the first support leg on the right side and is connected to the crank transmission rod mounting seat; the upper end passes through the crank transmission rod and is fixed to the crank transmission rod; the lower end of the driving link is connected to the upper end of the connecting rod by a shaft. Insert the crank handle into the crank drive rod, rotate the crank handle counterclockwise to drive the connecting rod, connecting screw, and slider to move downwards, so that the first retractable support seat and the second retractable support seat are in the retracted state; insert the crank handle into the crank drive rod, rotate the crank handle clockwise to drive the connecting rod, connecting screw, and slider to move upwards, so that the first retractable support seat and the second retractable support seat are in the supported state. The telescopic structure includes: a first telescopic upper crossbeam with both ends connected to the upper ends of the second support legs on the left and right sides respectively; a second telescopic upper crossbeam with both ends connected to the upper ends of the first support legs on the left and right sides respectively; a first telescopic lower crossbeam with both ends fixed to the first lifting mechanism and the second lifting mechanism respectively; and a second telescopic lower crossbeam with both ends fixed to the first lifting mechanism and the second lifting mechanism respectively. The first telescopic upper crossbeam includes an upper crossbeam 1, an upper crossbeam 2, an upper crossbeam fixing block 1, and an upper crossbeam fixing block 2. The upper crossbeam 2 is inserted into the upper crossbeam 1. The left end of the connection between the upper crossbeam 2 and the upper crossbeam 1 is fixed to the upper end of the second support leg on the left side via the upper crossbeam fixing block 1. The right end of the connection between the upper crossbeam 2 and the upper crossbeam 1 is fixed to the upper end of the second support leg on the right side via the upper crossbeam fixing block 2. The second telescopic upper crossbeam includes an upper crossbeam 3, an upper crossbeam 4, an upper crossbeam fixing block 3, and an upper crossbeam fixing block 4. The upper crossbeam 3 is inserted into the upper crossbeam 4. The left end of the connection between the upper crossbeam 3 and the upper crossbeam 4 is fixed to the upper end of the first support leg on the left side via the upper crossbeam fixing block 3. The right end of the connection between the upper crossbeam 3 and the upper crossbeam 4 is fixed to the upper end of the first support leg on the right side via the upper crossbeam fixing block 4. The first telescopic lower crossbeam includes a lower crossbeam 1 and a lower crossbeam 2. The lower crossbeam includes a lower crossbeam fixing block 1, a lower crossbeam fixing block 2, and a lower crossbeam telescopic slider 1. The lower crossbeam 2 is connected to the lower crossbeam 1 via the lower crossbeam telescopic slider 1, and the left end of the connection between the lower crossbeam 2 and the lower crossbeam 1 is fixed to the lifting frame of the second lifting mechanism via the lower crossbeam fixing block 1. The right end of the connection between the lower crossbeam 2 and the lower crossbeam 1 is fixed to the lifting frame of the first lifting mechanism via the lower crossbeam fixing block 2. The second telescopic lower crossbeam includes a lower crossbeam 3, a lower crossbeam 4, a lower crossbeam fixing block 3, a lower crossbeam fixing block 4, and a lower crossbeam telescopic slider 2. The lower crossbeam 4 is connected to the lower crossbeam 3 via the lower crossbeam telescopic slider 2, and the left end of the connection between the lower crossbeam 4 and the lower crossbeam 3 is fixed to the lifting frame of the second lifting mechanism via the lower crossbeam fixing block 4. The right end of the connection between the lower crossbeam 4 and the lower crossbeam 3 is fixed to the lifting frame of the first lifting mechanism via the lower crossbeam fixing block 3. The basic training structure includes: multiple basic trainers; each basic trainer includes: a basic trainer upper plate, a first L-shaped fixing frame and a second L-shaped fixing frame respectively connected to both ends of the basic trainer upper plate, a locking rod fixing seat vertically fixed to the first L-shaped fixing frame, the locking rod fixing seat having a through hole, a handle fixing seat vertically fixed to the second L-shaped fixing frame, the handle fixing seat having a through hole, a basic trainer lower plate fixed to the lower ends of the first L-shaped fixing frame and the second L-shaped fixing frame, a crossbeam locking rod, the front end of the crossbeam locking rod passing through the through hole of the handle fixing seat and the through hole of the locking rod fixing seat in sequence, and the middle part of the crossbeam locking rod located between the locking rod fixing seat and the handle fixing seat. The device includes a handle with a raised structure, a handle connected to the rear end of the crossbeam locking rod via a handle fixing pin, and a housing fixed to the outside of the basic trainer. The upper and lower plates of the basic trainer are connected by bolts. The upper end of the handle is connected to a handle fixing seat via another handle fixing pin. The upper end of the housing is connected to a first L-shaped fixing frame, the upper plate of the basic trainer, and a second L-shaped fixing frame. The locking rod fixing seat, the handle, and the lower end of the handle fixing seat all extend outside the housing. The housing has two through holes through which the first and second telescopic upper crossbeams pass, respectively, to connect the first basic trainer to the first and second telescopic upper crossbeams.

2. The suspension rehabilitation training device according to claim 1, characterized in that, The first, second, third, and fourth retractable support bases all have the same structural composition. The first retractable support base includes a first connecting rod, a second connecting rod, a first stabilizing leg, and a first rotating shaft. The first stabilizing leg is connected to the end of the second connecting rod, and the beginning of the second connecting rod is connected to the end of the first connecting rod. The beginning of the first connecting rod is connected to one end of the retractable support base connecting frame via a shaft, and the middle of the first connecting rod is connected to one end of the first bottom support frame via the first rotating shaft. The second retractable support base includes a third connecting rod and a fourth connecting rod. The system includes a second stabilizing leg and a second pivot. The second stabilizing leg is connected to the end of the fourth link, the beginning of the fourth link is connected to the end of the third link, the beginning of the third link is connected to the other end of the retractable support bracket via a pivot, and the middle of the third link is connected to the other end of the first bottom support bracket via a second pivot. When an upward force is applied to the retractable support bracket, the first and second retractable supports are retracted upwards. When a downward force is applied to the retractable support bracket, the first and second retractable supports are extended downwards.

3. The suspension rehabilitation training device according to claim 2, characterized in that, The movable structure includes: a first omnidirectional brake caster, a second omnidirectional brake caster, a third omnidirectional brake caster, and a fourth omnidirectional brake caster; the first omnidirectional brake caster and the second omnidirectional brake caster are respectively installed at both ends of the bottom of the first bottom support frame, and the third omnidirectional brake caster and the fourth omnidirectional brake caster are respectively installed at both ends of the bottom of the second bottom support frame.

4. The suspension rehabilitation training device according to claim 1, characterized in that, The difference between the second lifting mechanism and the first lifting mechanism is that in the second lifting mechanism, the second pulley seat is replaced by a transmission mechanism, and the first pulley seat is replaced by a third pulley seat. The other structural components of the second lifting mechanism are the same as those of the first lifting mechanism. The third pulley seat is fixed to the lifting frame in the second lifting mechanism. The transmission mechanism is fixed to the first support leg and the second support leg on the left side.

5. The suspension rehabilitation training device according to claim 4, characterized in that, The transmission mechanism includes: a transmission shaft, a U-shaped connector, a lead screw, a bearing, a large gear, and a small gear; the crank handle of the second lifting mechanism is inserted into the transmission shaft, the U-shaped connector is fixed to the outer surface of the connecting plate in the second lifting mechanism, the transmission shaft is sequentially inserted into the U-shaped connector and the connecting plate in the second lifting mechanism, and the small gear is fixed to the end of the transmission shaft, the bearing is mounted on the transmission shaft, and the bearing is located between the U-shaped connector and the connecting plate in the second lifting mechanism; one end of the lead screw is connected to the U-shaped connector, the other end of the lead screw is inserted into the connecting plate in the second lifting mechanism, and the large gear is fixed to the end of the lead screw inserted into the connecting plate; the large gear and the small gear mesh with each other.

6. The suspension rehabilitation training device according to claim 5, characterized in that, The first end of the steel wire passes through a small hole on the steel wire screw and is knotted and fixed in the hole. Then, the first end of the steel wire is wound sequentially around the steel wire screw, bearing, third pulley seat, first pulley seat, and second pulley seat. Next, it is wound sequentially around the second pulley seat, first pulley seat, third pulley seat, bearing, and steel wire screw again. Finally, the end of the steel wire passes through a small hole on the steel wire screw and is knotted and fixed in the hole. After the drive shaft is rotated clockwise by a motor or manually, the meshing action between the large and small gears drives the steel wire screw to rotate, tightening the steel wire. At this time, the steel wire is tightened through the third pulley seat and the first pulley… The combined action of the first and second pulley seats causes the lifting frames in the second and first lifting mechanisms to rise, thereby lifting the first and second telescopic lower crossbeams as a whole. When the drive shaft is rotated counterclockwise by a motor or manually, the meshing action between the large and small gears drives the lead screw to rotate, releasing the steel wire. At this time, the combined action of the third, first, and second pulley seats causes the lifting frames in the second and first lifting mechanisms to fall, thereby lowering the first and second telescopic lower crossbeams as a whole.

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