Limb stretching fitness bed

Abstract

The limb stretching fitness bed comprises a fixed frame, a horizontally arranged rectangular frame is installed on the upper end of the fixed frame, and a transverse frame which can move along the length direction of the rectangular frame is installed on the outer periphery of the rectangular frame. The positive effect of the present invention is that the limb stretching fitness bed described in the present invention enables the limbs swinging device to assist the user to complete the limbs swinging and stretching by moving the matched rectangular frame and the transverse frame. The body can lie on the bed without effort, and the functions of the bed body parts drive the human body to move. At the same time, multiple parts of the body can be exercised, stretching and swinging can be achieved, the limbs joints can be moved, the muscles of the whole body can be relaxed, blood circulation can be promoted, metabolism can be accelerated, and the purpose of strengthening the body can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sports and fitness equipment, in particular to a limbs stretching fitness bed. Background Art

[0002] With the development of society and the continuous improvement of living standards, the proportion of obese people is growing, and the health problems caused by obesity are increasing. Some people are the main labor force in the family, they have great work pressure, irregular diet, and their bodies are in a state of fatigue for a long time, and sub-health problems are prominent. Some people work long hours and sit for a long time, which leads to varying degrees of neck, shoulder, waist, and leg diseases, affecting their work and life quality.

[0003] The existing fitness bed equipment has a relatively single function and can only play the purpose of local exercise. It has no limb stretching and swinging functions, and cannot achieve the effect of quickly relaxing the muscles of the whole body, relieving physical fatigue, and regulating body functions. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a limb stretching fitness bed, which can perform various types of fitness exercises for people of different heights, different body shapes and different needs. The fitness bed has multiple functions such as limb stretching and swinging, horizontal multi-angle traction of the limbs, etc., allowing users to exercise easily without effort, and achieve the purpose of moving the limb joints, stretching the muscles of the whole body, and relaxing the muscles of the whole body. The fitness bed is suitable for various places and people such as rehabilitation centers, nursing homes, gymnastics training halls, gyms and families.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a limb stretching fitness bed described in the present invention includes a fixed frame, a horizontally arranged rectangular frame is installed on the upper end of the fixed frame, a transverse frame that can move along the length direction of the rectangular frame is installed on the outer periphery of the rectangular frame, the transverse frame is connected to a reciprocating mechanism, the reciprocating mechanism can drive the transverse frame to reciprocate around the outer periphery of the rectangular frame, a limbs horizontal swing device is installed at the bottom of the transverse frame, the limbs horizontal swing device includes a first mounting frame installed at the front end of the bottom of the transverse frame and a second mounting frame installed at the rear end of the bottom of the transverse frame, first vertical rotating shafts are installed on both sides of the first mounting frame, a hand swing arm is installed on the first vertical rotating shaft, and the hand swing arm extends out of the transverse frame A pull ring is installed at one end of the frame, and second vertical rotating shafts are installed on both sides of the second mounting frame. A leg swing arm is installed on the second vertical rotating shaft, and a leg placing plate is installed on the end of the leg swing arm extending out of the transverse moving frame. Longitudinal plug plates are fixedly installed on both sides of the rectangular frame, and an avoidance groove matching the longitudinal plug plate is opened on the transverse moving frame. A positioning folding plate is installed on the end of the longitudinal plug plate passing through the avoidance groove, and the positioning folding plate is arranged along the length direction of the transverse moving frame. A first connecting rod is provided between the positioning folding plate and the hand swing arm and between the positioning folding plate and the leg swing arm. One end of the first connecting rod is hinged on the positioning folding plate, and the other end of the first connecting rod is hinged on the swing arm. The reciprocating mechanism is connected to the transverse moving frame through the first mounting frame.

[0006] Furthermore, a stretching adjustment device is installed on the hand swing arm, and the stretching adjustment device includes a telescopic rod fixedly installed on the hand swing arm, a first fixed sleeve is installed on the telescopic rod, a screw is installed in the first fixed sleeve, one end of the screw extending out of the first fixed sleeve is installed with a first rotating handle, and the other end of the screw is installed with a screw sleeve, a limit block is installed on the screw near one end of the first rotating handle in the first fixed sleeve, and a pull ring is fixedly installed on the screw sleeve.

[0007] Furthermore, a second fixed sleeve is installed on the leg swing arm, a telescopic tube is installed in the second fixed sleeve, a leg placement plate is fixedly installed on the telescopic tube, a long groove is opened along its length at the bottom of the second fixed sleeve, and a long protrusion matching the long groove is installed on the telescopic tube.

[0008] Furthermore, the first mounting frame is fixedly mounted on the transverse frame, and slideways are provided inside both sides of the transverse frame corresponding to the position of the second mounting frame. A horizontally arranged lead screw is fixedly mounted on the first mounting frame, and a nut matching the lead screw is mounted on the second mounting frame. A second rotating handle is mounted on one end of the lead screw passing through the first mounting frame, and the other end of the lead screw is fixed to the second mounting frame through a nut. Rotating the second rotating handle can cause the second mounting frame to move on the slideway relative to the transverse frame.

[0009] Furthermore, the positioning folding plate is provided with a first positioning hole along its length direction, the hand swing arm and the leg swing arm are provided with a second positioning hole along their length direction, one end of the first connecting rod can be hinged with the first positioning hole, and the other end of the first connecting rod can be hinged with the second positioning hole.

[0010] Furthermore, a positioning plate arranged parallel to the positioning folding plate is installed on the transverse moving frame, and a third positioning hole is opened along the length direction of the positioning plate, and the third positioning hole can cooperate with the second positioning hole for positioning.

[0011] Furthermore, the reciprocating mechanism includes a motor and a turntable mounted on a fixed frame, the output shaft of the motor is connected to the turntable through a conveyor belt, a second connecting rod is provided on the turntable, one end of the second connecting rod is hinged on the turntable, and the other end of the second connecting rod is hinged on the first mounting frame.

[0012] Furthermore, at least two hinged seats are installed along the diameter of the turntable, the second connecting rod is connected to the hinged seat through a ball joint, and a flip hinge is installed between the second connecting rod and the ball joint.

[0013] The positive effect of the present invention is that the limb stretching fitness bed described in the present invention, through the moving matching rectangular frame and the horizontal movement frame, enables the limbs swinging device to assist the user to complete the limbs swinging and stretching. The body can lie on the bed without effort, and the functions of the bed body parts can drive the human body to move. At the same time, it can exercise multiple parts of the body, realize stretching and swinging, move the limbs joints, relax the muscles of the whole body, promote blood circulation, accelerate metabolism, and achieve the purpose of strengthening the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a front view of the present invention;

[0016] Figure 3 yes Figure 2 A top view of

[0017] Figure 4 yes Figure 2 Right view of;

[0018] Figure 5 yes Figure 2 An enlarged view of the AA section view;

[0019] Figure 6 It is a schematic diagram of the structure of a four-limb horizontal swing device;

[0020] Figure 7 yes Figure 2 An enlarged view of the BB section view;

[0021] Figure 8 is a schematic diagram of the structure of the stretching adjustment device;

[0022] Fig. 9 It is a structural schematic diagram of the lead screw nut mechanism between the telescopic rod and the hand swing arm;

[0023] Fig.10 It is a schematic diagram of the structure at the position of the leg placement board;

[0024] Fig.11 yes Figure 2 An enlarged view of the CC section view;

[0025] Fig.12 yes Figure 6 A partial enlarged view of middle I;

[0026] Fig.13 It is a schematic diagram of the connection state between the reciprocating mechanism and the four-limb horizontal swing device;

[0027] Fig.14 It is a structural schematic diagram of a reciprocating mechanism;

[0028] Fig.15 It is another structural schematic diagram of the stretching adjustment device.

[0029] In the figure, 1 a fixed frame 11 a rectangular frame 13 a transverse frame 2 a reciprocating mechanism 21 a motor 22 a turntable 23 a conveyor belt 24 a second connecting rod 25 a hinge seat 26 a ball joint 27 a flip hinge 4 a four-limb horizontal opening swing device 41 a first mounting frame 42 a second mounting frame 43 a first vertical rotation axis 44 a hand swing arm 45 a pull ring 46 a second vertical rotation axis 47 a leg swing arm 48 a leg placement plate 49 a longitudinal plug plate 410 a avoidance groove 411 a positioning folding plate 412 a first connecting rod 413 The first fixing sleeve 414 screw rod 415 first rotating handle 416 screw sleeve 417 limit block 418 second fixing sleeve 419 telescopic tube 420 long groove 421 long protrusion 422 slideway 423 screw rod 424 second rotating handle 425 first positioning hole 426 second positioning hole 427 positioning plate 428 third positioning hole 429 telescopic rod 430 nut 431 fixing sleeve 432 positioning sleeve 433 support plate 434 positioning nut 435 screw fixing plate. DETAILED DESCRIPTION

[0030] The limb stretching fitness bed described in the present invention is as follows: Figure 1 As shown, it includes a fixing frame 1, which is installed on the ground. Universal wheels can also be installed at the bottom of the fixing frame 1 to facilitate the movement of the entire device. Figure 5As shown, a horizontally arranged rectangular frame 11 is installed on the upper end of the fixed frame 1, and a transverse frame 13 capable of moving along the length direction of the rectangular frame 11 is installed on the outer periphery of the rectangular frame 11, and the transverse frame 13 is connected to a reciprocating mechanism 2, which can drive the transverse frame 13 to reciprocate around the outer periphery of the rectangular frame 11. The reciprocating mechanism 2 can be an existing crank connecting rod mechanism, a cam mechanism or a grooved wheel mechanism.

[0031] like Figure 6 As shown, a limbs-spreading swing device 4 is installed at the bottom of the transverse frame 13. When the user lies on the transverse frame 13, the upper limbs and lower limbs on both sides can be placed on the limbs-spreading swing device 4, and the limbs can be reciprocated and spread under the drive of the reciprocating movement mechanism 2. The limbs-spreading swing device 4 includes a first mounting frame 41 installed at the front end of the bottom of the transverse frame 13 and a second mounting frame 42 installed at the rear end of the bottom of the transverse frame 13. First vertical rotating shafts 43 are installed on both sides of the first mounting frame 41. A hand swing arm 44 is installed on the first vertical rotating shaft 43. A pull ring 45 is installed at one end of the hand swing arm 44 extending from the transverse frame 13. The user's hand holds the pull ring 45 to fix the arm. Second vertical shafts 46 are installed on both sides of the second mounting frame 42, and leg swing arms 47 are installed on the second vertical shafts 46. One end of the leg swing arm 47 extending out of the transverse frame 13 is installed with a leg placement plate 48 for placing the user's feet or calves.

[0032] like Figure 7 As shown, longitudinal insert plates 49 are fixedly installed on both sides of the rectangular frame 11, and an avoidance groove 410 matching with the longitudinal insert plate 49 is opened on the transverse frame 13. A positioning folding plate 411 is installed at one end of the longitudinal insert plate 49 that passes through the avoidance groove 410. The positioning folding plate 411 is arranged along the length direction of the transverse frame 13. A first connecting rod 412 is provided between the positioning folding plate 411 and the hand swing arm 44 and between the positioning folding plate 411 and the leg swing arm 47. One end of the first connecting rod 412 is hinged on the positioning folding plate 411, and the other end of the first connecting rod 412 is hinged on the swing arm. The reciprocating moving mechanism 2 is connected to the transverse frame 13 through the first mounting frame 41.

[0033] The hand swing arm 44 has the same horizontal swing structure as the leg swing arm 47. Here, the structure of the hand swing arm 44 is used to explain its action process in detail. One end of the hand swing arm 44 is mounted on the first mounting frame 41 through the first vertical shaft 43. Since the first mounting frame 41 is fixedly mounted on the transverse frame 13, the end of the hand swing arm 44 hinged on the first mounting frame 41 can move back and forth with the transverse frame 13. A first The connecting rod 412, wherein the positioning folding plate 411 is fixedly mounted on the rectangular frame 11, and the first connecting rod 412 installed between the positioning folding plate 411 and the hand swing arm 44 plays the role of hingedly connecting a connection point of the hand swing arm 44 to the rectangular frame 11. The overall connection of the hand swing arm 44 is equivalent to one end being fixed and the other end swinging. During the reciprocating movement of the transverse frame 13, the hand swing arm 44 swings with the position hinged with the first connecting rod 412 as the center point. Figure 3 Taking the direction shown as an example, when the transverse frame 13 moves to the right, the hand swing arm 44 rotates clockwise with the position where it is hinged with the first connecting rod 412 as the center, and when the transverse frame 13 moves to the left, the hand swing arm 44 rotates counterclockwise with the position where it is hinged with the first connecting rod 412 as the center, and when the transverse frame 13 moves back and forth, the hand swing arm 44 simultaneously performs reciprocating horizontal swinging. The swinging structure principle of the leg swing arm 47 is the same as that described above. Under the drive of the reciprocating mechanism 2, the hand swing arm 44 and the leg swing arm 47 can simultaneously perform reciprocating horizontal swinging.

[0034] like Figure 8 As shown, in order to adapt to different arm lengths of users and to perform upper limb stretching operations on the hand swing arm 44, the hand swing arm 44 is equipped with a stretching adjustment device, which includes a telescopic rod 429 fixedly installed on the hand swing arm 44. The telescopic rod 429 can be controlled by a screw nut mechanism to adjust the distance of the telescopic rod 429 extending out of the hand swing arm 44. A first fixed sleeve 413 is installed on the telescopic rod 429, and a screw 414 is installed in the first fixed sleeve 413. A first rotating handle 415 is installed at one end of the screw 414 extending out of the first fixed sleeve 413, and a screw sleeve 416 is installed at the other end of the screw 414. A limit block 417 is installed on the screw 414 near one end of the first rotating handle 415 in the first fixed sleeve 413, and a pull ring 45 is fixedly installed on the screw sleeve 416. When the user's hand grasps the pull ring 45, rotating the first rotating handle 415 can drive the screw sleeve 416 and the pull ring 45 to retract, thereby stretching the user's upper limb.

[0035] like Fig. 9As shown, the lead screw nut mechanism between the telescopic rod 429 and the hand swing arm 44 includes a fixed sleeve 431 installed in the hand swing arm 44, a positioning sleeve 432 is installed at one end of the fixed sleeve 431, a positioning hole matched with the positioning sleeve 432 is opened on the hand swing arm 44, a positioning pin is installed in the positioning hole, and the fixed sleeve 431 is fixed in the hand swing arm 44 through the positioning sleeve 432, and a nut is installed at the other end of the fixed sleeve 431, and a support plate 433 is provided on the outer periphery of the nut, and the support plate 433 is connected to the hand The internal space of the swing arm 44 is consistent with each other, which can prevent the position of the nut from shifting. A screw is installed in the nut, and a positioning nut 434 is installed at the other end of the screw. A screw fixing plate 435 is provided at the end of the telescopic rod 429. A through hole matching the screw is opened on the screw fixing plate 435. A key slot is opened at the end of the screw passing through the through hole. A thread is threaded in the middle and a rotating handle is installed. The wheel handle on the rotating handle can be folded and retracted when not in use. When the rotating handle is rotated, it can drive the telescopic rod 429 to telescope and move in the hand swing arm 44.

[0036] like Fig.15 As shown, in order to avoid rigid strain on the upper limbs during the stretching process, a buffer function is added in the first fixed sleeve 413. A plug is provided at the front end of the first fixed sleeve 413, and a bolt is screwed on the rear end of the screw sleeve 416. The bolt fixes the gasket at the rear end of the first fixed sleeve 413. A buffer spring is provided on the outer periphery of the first fixed sleeve 413. The buffer spring is located between the gasket and the plug. Pulling the first fixed sleeve 413 to move can compress the buffer spring, thereby playing a buffering role.

[0037] Furthermore, if Fig.10 As shown, in order to adapt to the different lengths of the user's lower limbs, a second fixing sleeve 418 is installed on the leg swing arm 47, and a telescopic tube 419 is installed in the second fixing sleeve 418. The leg placement plate 48 is fixedly installed on the telescopic tube 419. The bottom of the second fixing sleeve 418 is provided with a long groove 420 arranged along its length, and the telescopic tube 419 is provided with a long protrusion 421 that matches the long groove 420. The arrangement of the long groove 420 and the long protrusion 421 can prevent the leg placement plate 48 from rotating during the stretching process, so that the leg placement plate 48 always faces upward to receive the user's legs. A stretching adjustment device can also be installed on the leg swing arm 47, and the traction and stretching of the user's legs can also be completed in cooperation with the traction foot cover.

[0038] Furthermore, in order to enable the limb-spreading swing device 4 to meet the difference between the upper and lower limbs of different users, the distance between the first mounting frame 41 and the second mounting frame 42 can be adjusted. The first mounting frame 41 is fixedly mounted on the transverse frame 13. Fig.11As shown, corresponding to the position of the second mounting frame 42, slideways 422 are provided inside both sides of the transverse frame 13, a horizontally arranged lead screw 423 is fixedly installed on the first mounting frame 41, a nut 430 matching the lead screw 423 is installed on the second mounting frame 42, and a second rotating handle 424 is installed on one end of the lead screw 423 passing through the first mounting frame 41, and the other end of the lead screw 423 is fixed to the second mounting frame 42 by the nut 430. Rotating the second rotating handle 424 can make the second mounting frame 42 move relative to the transverse frame 13 on the slideway 422, thereby adjusting the distance between the first mounting frame 41 and the second mounting frame 42, so that the distance between the hand swing arm 44 and the leg swing arm 47 meets the user's upper and lower limb gap requirements.

[0039] Further, if Fig.12 As shown, the positioning folding plate 411 is provided with a first positioning hole 425 along its length direction, and the hand swing arm 44 and the leg swing arm 47 are provided with a second positioning hole 426 along their length direction. One end of the first connecting rod 412 can be hinged with the first positioning hole 425, and the other end of the first connecting rod 412 can be hinged with the second positioning hole 426. By selecting the first connecting rod 412 to be hinged with the first positioning hole 425 and the second positioning hole 426 at different positions, the reciprocating swing amplitude of the hand swing arm 44 and the leg swing arm 47 can be adjusted to meet the different exercise requirements of the user.

[0040] When only the stretching and traction function of the limbs swing device 4 is needed, and the hand swing arm 44 and the leg swing arm 47 do not need to follow the transverse frame 13 to reciprocate, it is only necessary to disconnect the connection between the swing arm and the positioning folding plate 411, and connect the swing arm to the transverse frame 13, so that the swing arm only follows the transverse frame 13 to move without swinging. The transverse frame 13 is equipped with a positioning plate 427 arranged parallel to the positioning folding plate 411, and the positioning plate 427 is provided with a third positioning hole 428 along its length direction. The third positioning hole 428 can be matched with the second positioning hole 426 for positioning. When the third positioning hole 428 is matched with the second positioning hole 426 for positioning, the swing arm as a whole is equivalent to being installed on the transverse frame 13, and will not swing. The third positioning hole 428 and the second positioning hole 426 can be matched with the first connecting rod 412, or with the existing countersunk bolts matched with the third positioning hole 428 and the second positioning hole 426.

[0041] like Fig.13As shown, the reciprocating mechanism 2 includes a motor 21 and a turntable 22 mounted on the fixed frame 1, the output shaft of the motor 21 is connected to the turntable 22 through a conveyor belt 23, and a second connecting rod 24 is provided on the turntable 22, one end of the second connecting rod 24 is hinged on the turntable 22, and the other end of the second connecting rod 24 is hinged on the first mounting frame 41. The arrangement of the turntable 22 and the second connecting rod 24 is similar to a crank connecting rod, and can drive the first mounting frame 41 and the transverse frame 13 to reciprocate under the drive of the motor 21, and the motor 21 can adjust the movement speed according to different needs.

[0042] Furthermore, in order to adjust the transmission ratio between the turntable 22 and the second connecting rod 24, the length of the reciprocating movement of the traverse frame 13 is adjusted, such as Fig.14 As shown, at least two articulated seats 25 are installed along the diameter position of the turntable 22, and the second connecting rod 24 is connected to the articulated seat 25 through a ball hitch 26. The articulated seats 25 at different diameter length positions can drive the second connecting rod 24 to drive the transverse frame 13 to reciprocate at different distances. In order to prevent the angle of the ball hitch 26 from changing during the rotation, thereby affecting the connection stability of the second connecting rod 24, a flip hinge 27 is also installed between the second connecting rod 24 and the ball hitch 26 to ensure that the ball hitch 26 can still maintain transmission continuity with the second connecting rod 24 during the rotation, thereby preventing the second connecting rod 24 from bending and torsion deformation.

[0043] The present invention can also be equipped with a timing device to control the working time of the motor. The user can set the activity time through the control panel or the remote controller, and the motor can stop automatically after the activity time ends.

[0044] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A limb stretching fitness bed, characterized in that: The invention comprises a fixed frame (1), a rectangular frame (11) arranged horizontally is installed on the upper end of the fixed frame (1), a transverse frame (13) which can move along the length direction of the rectangular frame (11) is installed on the outer periphery of the rectangular frame (11), the transverse frame (13) is connected to a reciprocating mechanism (2), the reciprocating mechanism (2) can drive the transverse frame (13) to reciprocate on the outer periphery of the rectangular frame (11), and a four-limb horizontal opening swing device (4) is installed on the bottom of the transverse frame (13), the four-limb horizontal opening swing device (4) The swing device (4) comprises a first mounting frame (41) mounted at the front end of the bottom of the transverse frame (13) and a second mounting frame (42) mounted at the rear end of the bottom of the transverse frame (13), first vertical rotating shafts (43) are mounted on both sides of the first mounting frame (41), a hand swing arm (44) is mounted on the first vertical rotating shaft (43), a pull ring (45) is mounted on one end of the hand swing arm (44) extending out of the transverse frame (13), and second vertical rotating shafts are mounted on both sides of the second mounting frame (42). (46), a leg swing arm (47) is installed on the second vertical rotation axis (46), and a leg placement plate (48) is installed on one end of the leg swing arm (47) extending out of the transverse movement frame (13), and longitudinal plug plates (49) are fixedly installed on both sides of the rectangular frame (11), and an avoidance groove (410) matched with the longitudinal plug plate (49) is opened on the transverse movement frame (13), and a positioning folding plate (411) is installed on one end of the longitudinal plug plate (49) passing through the avoidance groove (410), and the positioning The folding plate (411) is arranged along the length direction of the transverse frame (13); a first connecting rod (412) is provided between the positioning folding plate (411) and the hand swing arm (44), and between the positioning folding plate (411) and the leg swing arm (47); one end of the first connecting rod (412) is hinged on the positioning folding plate (411), and the other end of the first connecting rod (412) is hinged on the swing arm; the reciprocating mechanism (2) is connected to the transverse frame (13) via a first mounting frame (41).

2. A limb stretching fitness bed according to claim 1, characterized in that: The hand swing arm (44) is provided with a stretching adjustment device, which comprises a telescopic rod (429) fixedly mounted on the hand swing arm (44); a first fixing sleeve (413) is mounted on the telescopic rod (429); a screw rod (414) is mounted in the first fixing sleeve (413); a first rotating handle (415) is mounted on one end of the screw rod (414) extending out of the first fixing sleeve (413); a screw sleeve (416) is mounted on the other end of the screw rod (414); a limit block (417) is mounted on the screw rod (414) near one end of the first rotating handle (415) in the first fixing sleeve (413); and the pull ring (45) is fixedly mounted on the screw sleeve (416).

3. The limb stretching fitness bed according to claim 1, characterized in that: The leg swing arm (47) is provided with a second fixing sleeve (418), a telescopic tube (419) is installed in the second fixing sleeve (418), a leg placement plate (48) is fixedly installed on the telescopic tube (419), a long groove (420) arranged along its length is provided at the bottom of the second fixing sleeve (418), and a long protrusion (421) matching with the long groove (420) is installed on the telescopic tube (419).

4. The limb stretching fitness bed according to claim 1, characterized in that: The first mounting frame (41) is fixedly mounted on the transverse frame (13), and corresponding to the position of the second mounting frame (42), slideways (422) are provided inside both sides of the transverse frame (13); a horizontally arranged lead screw (423) is fixedly mounted on the first mounting frame (41), and a nut (430) matched with the lead screw (423) is mounted on the second mounting frame (42); a second rotating handle (424) is mounted on one end of the lead screw (423) passing through the first mounting frame (41), and the other end of the lead screw (423) is fixed to the second mounting frame (42) through the nut (430); rotating the second rotating handle (424) can cause the second mounting frame (42) to move on the slideway (422) relative to the transverse frame (13).

5. The limb stretching fitness bed according to claim 1, characterized in that: The positioning folding plate (411) is provided with a first positioning hole (425) along its length direction, and the hand swing arm (44) and the leg swing arm (47) are provided with a second positioning hole (426) along their length direction; one end of the first connecting rod (412) can be hinged to the first positioning hole (425), and the other end of the first connecting rod (412) can be hinged to the second positioning hole (426).

6. The limb stretching fitness bed according to claim 5, characterized in that: A positioning plate (427) arranged parallel to the positioning folding plate (411) is installed on the transverse moving frame (13); a third positioning hole (428) is opened along the length direction of the positioning plate (427); and the third positioning hole (428) can be matched with the second positioning hole (426) for positioning.

7. The limb stretching fitness bed according to claim 1, characterized in that: The reciprocating mechanism (2) comprises a motor (21) and a turntable (22) mounted on a fixed frame (1); the output shaft of the motor (21) is connected to the turntable (22) via a conveyor belt (23); a second connecting rod (24) is provided on the turntable (22); one end of the second connecting rod (24) is hinged on the turntable (22); and the other end of the second connecting rod (24) is hinged on the first mounting frame (41).

8. The limb stretching fitness bed according to claim 7, characterized in that: At least two hinge seats (25) are installed along the diameter of the rotating disk (22), and the second connecting rod (24) is connected to the hinge seat (25) through a ball joint (26). A flip hinge (27) is also installed between the second connecting rod (24) and the ball joint (26).

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