Orthopedic spine correction device

Abstract

The invention relates to the technical field of spine correction, in particular to an orthopedic spine correction device which comprises a bed body, a correction plate, a first connecting plate, a mounting frame, an adjusting assembly, a supporting plate, a supporting assembly and a lifting assembly, supporting legs are arranged at the bottom end of the bed body, and a first through hole is formed in the position, close to a bed head, of the middle of the bed body; the two ends of the correcting plate are installed on the first connecting plate through the adjusting assemblies, the top end of the supporting plate is connected with the middle area of the bottom end of the correcting plate, and the supporting assembly is installed in the middle of the first connecting plate and used for supporting the supporting plate. According to the spine correction device for the orthopedics department, the heightening radian can be more accurately adjusted when a patient uses the spine correction device, so that the patient is located at the optimal correction position.

Description

Technical Field

[0001] The present application relates to the technical field of spinal correction, and in particular to an orthopedic spinal correction device. Background Art

[0002] With the continuous development of society, various occupations have been discovered. Due to their professional characteristics, some occupations often cause practitioners to suffer from occupational diseases, and many jobs often require overtime work, which requires practitioners to sit for up to seven or eight hours a day, and even up to more than ten hours. This has caused great damage to the spine and spinal column of the practitioners. At present, most patients use cushions to raise their bodies and lie on the raised cushions to achieve the purpose of correcting the spine. Although the treatment of the spine by raising the cushion has the convenience of conditioning and auxiliary correction at home, the patient may need a different curvature for treatment each time it is used. The curvature of the raised cushion cannot be accurately adjusted, and the patient cannot ensure that the body is in the best correction position. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present application provides an orthopedic spinal correction device, which can enable the patient to more accurately adjust the curvature of the cushion when using it, so that the patient is in the best correction position.

[0004] To achieve the above-mentioned objectives, the present application provides the following technical solutions: it includes a bed body, the bottom end of the bed body is connected to the support legs, characterized in that it also includes a correction plate, a first connecting plate, a mounting frame, an adjustment assembly and a support plate, a first through hole is provided in the middle part of the bed body near the head of the bed, both ends of the correction plate are mounted on the first connecting plate through the adjustment assembly, the top end of the support plate is connected to the middle area of ​​the bottom end of the correction plate, the adjustment assembly includes a connecting shaft, a first movable plate, a first sliding rod and a first bidirectional screw, the connecting shaft is mounted on the correction plate, the first movable plate is rotatably connected to the connecting shaft, the first sliding rod is connected to the first connecting plate, the first movable plate is slidably connected to the corresponding first sliding rod, the first connecting plate is provided with a rotating hole, the first bidirectional screw is rotatably connected to the rotating hole, and the first bidirectional screw is cooperatively connected to the first movable plate.

[0005] Preferably, the device also includes a supporting assembly, the supporting assembly includes a supporting rod, a connecting block, two groups of second sliding rods, two groups of springs, a sliding block, two groups of second connecting plates and a pulling assembly, the supporting rod is connected to the bottom of the supporting plate, the first connecting plate is provided with a first sliding hole, the supporting rod is slidably connected to the first sliding hole, one side of the supporting rod is provided with multiple groups of wedge-shaped blocks, the connecting block is provided with multiple groups of wedge-shaped grooves matching the wedge-shaped blocks, the wedge blocks are slidably engaged with the wedge grooves, one end of the two groups of second sliding rods are connected to the connecting block, two groups of second sliding holes are provided on the sliding block, the two groups of second sliding rods are respectively slidably connected to the two groups of second sliding holes, the two groups of springs are respectively slidably fitted with the two groups of second sliding rods, the two groups of second connecting plates are respectively connected to one end of the two groups of second sliding rods away from the connecting block, two groups of sliding grooves are provided at the top of the first connecting plate, the sliding block is slidably connected to the two groups of sliding grooves, the pulling assembly is installed at the top of the first connecting plate, and the pulling assembly is connected to the sliding block.

[0006] Preferably, the device also includes a lifting assembly, which includes two groups of first fixed plates, two groups of third sliding bars, a second bidirectional screw, two groups of second movable plates, two groups of first hinged seats, two groups of second hinged seats, two groups of push plates and four groups of fourth sliding bars, the two groups of first fixed plates are respectively installed in the installation frame, the two ends of the two groups of third sliding bars are respectively connected to the inner ends of the two groups of first fixed plates, the second bidirectional screw is rotatably connected to the two groups of first fixed plates, the two groups of second movable plates are both slidably connected to the two groups of third sliding bars, the two groups of second movable plates are symmetrically connected to the second bidirectional screw, the two groups of first hinged seats are respectively connected to the top ends of the two groups of second movable plates, the two groups of second hinged seats are symmetrically connected to the bottom ends of the first connecting plates, the bottom ends of the two groups of push plates are respectively hinged to the two groups of first hinged seats, the top ends of the two groups of push plates are respectively hinged to the two groups of second hinged seats, the four groups of fourth sliding bars are installed at the bottom ends of the first connecting plates, and four groups of fourth sliding holes are provided at the bottom end of the installation frame, and the four groups of fourth sliding bars are respectively slidably connected to the four groups of fourth sliding holes.

[0007] Preferably, it also includes a first motor, a drive shaft, a first gear and a second gear. A second through hole is provided through the middle area of ​​the first connecting plate. The motor is installed on the top of the first motor. The first gear is connected to the first motor through the drive shaft. The second gear is installed on the first bidirectional screw. The second gear is located in the second through hole. The first gear is meshingly connected with the second gear.

[0008] Preferably, the pulling assembly comprises an electric cylinder, the electric cylinder is mounted on the first connecting plate, and the output end of the electric cylinder is connected to the slider.

[0009] Preferably, it also includes a first mounting block, a second mounting block, a first limit switch and a second limit switch, the first mounting block is connected to one end of one group of first slide bars, the second mounting block is connected to one side of the first connecting plate, the first limit switch is installed on the first connecting block, the second limit switch is installed on the second connecting block, and the first limit switch and the second limit switch are both electrically connected to the first motor.

[0010] Preferably, a second motor is provided on the first fixing plate, and an output end of the second motor is connected to a second bidirectional screw.

[0011] Preferably, a cover plate is further included, and a mounting groove is provided in communication with the first through hole.

[0012] Preferably, two groups of pick-and-place slots are provided on the cover plate.

[0013] Preferably, the bottom ends of the four groups of legs are all provided with adjusting screws.

[0014] Compared with the prior art, it has the following beneficial effects:

[0015] The lifting assembly can drive the correction plate and the first connecting plate to rise and fall in the first through hole, and the correction plate is lifted to perform correction work on the patient. The rotation of the first bidirectional screw can drive the two groups of first movable plates to move toward the middle of the first connecting plate or away from the first connecting plate at the same time. The first movable plate slides on the first sliding rod, and the first movable plate drives the connecting shaft to move, thereby making the middle of the correction plate bulge upward to make the curvature larger, or making the middle position of the correction plate move downward to reduce the curvature. Therefore, compared with repeatedly adjusting the curvature of the cushion, this device can adjust the curvature more accurately. When the middle position of the correction plate moves up and down, it drives the support plate to move at the same time. By supporting the support plate with the support assembly, the possibility of the correction plate being crushed can be reduced. Therefore, an orthopedic spinal correction device is provided, which can enable patients to more accurately adjust the curvature of the cushion when using it, so that the patient is in the best correction position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the axonometric structure of this application;

[0017] Figure 2 This is a schematic diagram of the first connecting plate support plate and its connecting structure of the present application;

[0018] Figure 3 This is a schematic diagram of the support plate and the correction plate and their connection structure for this application;

[0019] Figure 4 This is a schematic diagram of the first motor and the drive shaft and their connection structure in this application;

[0020] Figure 5This is a schematic diagram of the first limit switch and the first mounting block and their connection structure in the present application;

[0021] Figure 6 This is a schematic diagram of the first bidirectional screw and the first movable plate and their connection structure in the present application;

[0022] Figure 7 This is a schematic diagram of the correction plate and the connecting shaft and their connection structure for this application;

[0023] Figure 8 This is a schematic diagram of the wedge-shaped card block and the wedge-shaped card slot and their connection structure in this application;

[0024] Fig. 9 This is a schematic diagram of the cover plate, the pick-and-place slot and their connection structure for this application.

[0025] Reference numerals:

[0026] 1-bed body; 2-legs; 3-head; 4-foot; 5-correction plate; 6-first connecting plate; 7-installation frame; 8-support plate; 9-first through hole; 10-connecting shaft; 11-first moving plate; 12-first slide rod; 13-first bidirectional screw; 14-support rod; 15-connecting block; 16-second slide rod; 17-spring; 18-slider; 19-second connecting plate; 20-wedge block; 21-wedge slot; 22-slide slot; 23-first fixed plate; 24-third slide rod; 2 5-second bidirectional screw; 26-second movable plate; 27-first hinge seat; 28-second hinge seat; 29-pushing plate; 30-fourth slide bar; 31-first motor; 32-driving shaft; 33-first gear; 34-second gear; 35-second through hole; 36-electric cylinder; 37-first mounting block; 38-second mounting block; 39-first limit switch; 40-second limit switch; 41-second motor; 42-cover plate; 43-pick-and-place groove; 44-adjusting screw; 45-mounting groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0028] Example

[0029] Please refer to the attached Figure 1-9, This embodiment provides an orthopedic spine correction device, including a bed body 1, four groups of legs 2 are arranged at the bottom of the bed body 1, a head 3 and a foot 4 are arranged on both sides of the bed body 1, a correction plate 5, a first connecting plate 6, a mounting frame 7, an adjustment component, a support plate 8, a support component and a lifting component, a first through hole 9 is arranged near the head 3 in the middle of the bed body 1, both ends of the correction plate 5 are installed on the first connecting plate 6 through the adjustment component, the top of the support plate 8 is connected to the middle area of ​​the bottom end of the correction plate 5, the support component is installed in the middle position of the first connecting plate 6, the support component is used to support the support plate 8, and two groups of support components are provided, the mounting frame 7 is installed at the bottom of the bed body 1, and the first connecting plate 6 is installed in the mounting frame 7 through the lifting component;

[0030] The adjustment assembly includes four groups of connecting shafts 10, two groups of first movable plates 11, four groups of first sliding rods 12 and first bidirectional screws 13. The four groups of connecting shafts 10 are respectively installed at the front end and the rear end of both sides of the correction plate 5. The top front sides and the top rear sides of the two groups of first movable plates 11 are respectively rotatably connected with the four groups of connecting shafts 10. The four groups of first sliding rods 12 are respectively connected with the front area and the rear area of ​​both sides of the first connecting plate 6. The two groups of first movable plates 11 are slidably connected with the corresponding four groups of first sliding rods 12. The first connecting plate 6 is penetrated by rotating holes on the left and right. The first bidirectional screws 13 are rotatably connected with the rotating holes. The two side areas of the first bidirectional screws 13 are respectively matched and connected with the two groups of first movable plates 11.

[0031] The lifting assembly can drive the correction plate 5 and the first connecting plate 6 to rise and fall in the first through hole 9, and the correction plate 5 can be raised to correct the patient. The rotation of the first bidirectional screw 13 can drive the two groups of first movable plates 11 to move toward the middle of the first connecting plate 6 or move away from the first connecting plate 6 at the same time. The first movable plate 11 slides on the first sliding rod 12, and the first movable plate 11 drives the connecting shaft 10 to move, and at the same time, the middle of the correction plate 5 bulges upward to make the curvature larger, or the middle position of the correction plate 5 moves downward to reduce the curvature. The correction plate 5 has a certain toughness and can meet the normal use of this device. Therefore, compared with repeatedly adjusting the curvature of the cushion, this device can adjust the curvature more accurately. When the middle position of the correction plate 5 moves up and down, it drives the support plate 8 to move at the same time. By supporting the support plate 8 through the support assembly, the possibility of the correction plate 5 being crushed can be reduced. Therefore, an orthopedic spinal correction device is provided, which can enable the patient to more accurately adjust the curvature of the cushion when using it, so that the patient is in the best correction position.

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8The supporting assembly includes a supporting rod 14, a connecting block 15, two groups of second sliding rods 16, two groups of springs 17, a slider 18, two groups of second connecting plates 19 and a pulling assembly. The supporting rod 14 is connected to the bottom end of the supporting plate 8. A first sliding hole is provided on the first connecting plate 6. The supporting rod 14 is slidably connected to the first sliding hole. A plurality of groups of wedge-shaped blocks 20 are provided on one side of the supporting rod 14. A plurality of groups of wedge-shaped card grooves 21 matching the wedge-shaped card blocks 20 are provided on the connecting block 15. The wedge card blocks 20 are slidably mounted with the wedge card grooves 21. One end of the two groups of second sliding rods 16 are connected to the connecting block 15. Two groups of second sliding holes are provided on the slider 18. The two groups of second sliding rods 16 are slidably connected to the two groups of second sliding holes respectively. The two groups of springs 17 are slidably fitted to the two groups of second sliding rods 16 respectively. The two groups of second connecting plates 19 are respectively connected to one end of the two groups of second sliding rods 16 away from the connecting block 15. Two groups of sliding grooves 22 are provided at the top of the first connecting plate 6. The slider 18 The two sets of slide grooves 22 are slidably connected, and the pulling component is installed at the top of the first connecting plate 6, and the pulling component is connected to the slider 18; when the support plate 8 rises, since the wedge surface on the wedge-shaped block 20 is inclined upward, the support rod 14 is driven to rise by the support plate 8, so that the wedge block 20 and the wedge slot 21 slide relative to each other, and the connecting block 15 squeezes the spring 17 to make the second slide bar 16 slide in the second slide hole, and the spring 17 plays a reset role for the connecting block 15. When in use, the possibility of the support rod 14 falling can be reduced by the clamping between the wedge block 20 and the slot. When the support rod 14 needs to fall, the slider 18 is pulled to slide in the slide groove 22 by starting the pulling component, and the second slide bar 16 and the connecting block 15 are pulled away from the wedge block 20 by the second connecting plate 19, so that the support rod 14 can fall smoothly. After the descent is completed, the slider 18 and the connecting block 15 can be reset by pushing the pulling component.

[0033] Please refer to Figure 3 and Figure 4The lifting assembly includes two groups of first fixed plates 23, two groups of third slide bars 24, second bidirectional screws 25, two groups of second movable plates 26, two groups of first hinged seats 27, two groups of second hinged seats 28, two groups of push plates 29 and four groups of fourth slide bars 30. The two groups of first fixed plates 23 are respectively installed in the installation frame 7, the two ends of the two groups of third slide bars 24 are respectively connected to the inner ends of the two groups of first fixed plates 23, the second bidirectional screws 25 are rotatably connected to the two groups of first fixed plates 23, the two groups of second movable plates 26 are both slidably connected to the two groups of third slide bars 24, the two groups of second movable plates 26 are symmetrically matched and connected to the second bidirectional screws 25, the two groups of first hinged seats 27 are respectively connected to the top ends of the two groups of second movable plates 26, the two groups of second hinged seats 28 are symmetrically connected to the bottom ends of the first connecting plates 6, the bottom ends of the two groups of push plates 29 are respectively hinged to the two groups of first hinged seats 27, the top ends of the two groups of push plates 29 are respectively hinged to the two groups of second hinged seats 28, and the four groups of fourth slide bars 3 When the two groups of second movable plates 26 are moved toward the middle of the second double-direction screw 25 or away from the middle of the second double-direction screw 25 at the same time, the two groups of first hinge seats 27 are moved at the same time. When the two groups of second movable plates 26 are moved toward the middle at the same time, the bottom ends of the two groups of push plates 29 are moved toward the middle, so that the first connecting plate 6 is lowered. When the two groups of second movable plates 26 are away from the middle position of the second double-direction screw 25 at the same time, the bottom ends of the two groups of push plates 29 are driven away from the middle position of the second double-direction screw 25. The two groups of push plates 29 will never move to a position perpendicular to the first connecting plate 6. At this time, the first connecting plate 6 is raised. When the first connecting plate 6 is lifted or lowered, the four groups of fourth slide bars 30 are lifted and slid at the same time.

[0034] Please refer to Figure 2-Figure 6 , also includes a first motor 31, a driving shaft 32, a first gear 33 and a second gear 34. A second through hole 35 is provided in the middle area of ​​the first connecting plate 6. The motor is installed at the top of the first motor 31. The first gear 33 is connected to the first motor 31 through the driving shaft 32. The second gear 34 is installed on the first bidirectional screw 13. The second gear 34 is located in the second through hole 35. The first gear 33 is meshed with the second gear 34. The first motor 31 is powered on to start the first motor 31. The first motor 31 drives the driving shaft 32 and the first gear 33 to rotate at the same time, and drives the second gear 34 to rotate at the same time. The second gear 34 drives the first bidirectional screw 13 to rotate. The first motor 31 is purchased on the market and has forward and reverse functions.

[0035] Please refer to Figure 4 , Figure 5 and Figure 8The pulling assembly includes an electric cylinder 36, which is installed on the first connecting plate 6, and the output end of the electric cylinder 36 is connected to the slider 18; the two groups of electric cylinders 36 on the first connecting plate 6 are powered on at the same time, so that the two groups of electric cylinders 36 are started at the same time, and the slider 18 can be driven to slide in the slide groove 22 through the electric cylinder 36.

[0036] Please refer to Figure 2-Figure 6 , further comprising a first mounting block 37, a second mounting block 38, a first limit switch 39 and a second limit switch 40, the first mounting block 37 being connected to one end of one group of first slide bars 12, the second mounting block 38 being connected to one side of the first connecting plate 6, the first limit switch 39 being mounted on the first connecting block 15, the second limit switch 40 being mounted on the second connecting block 15, the first limit switch 39 and the second limit switch 40 being both electrically connected to the first motor 31; when the first motor 31 is powered on and started so that the bidirectional screw rotates to drive the first movable plate 11 away from the first connecting plate 6, the first movable plate 11 presses the first limit switch 39 so that the first motor 31 stops rotating, and the first motor 31 is energized to start the first motor 31 to rotate in the other direction, driving the bidirectional screw to rotate so that the first movable plate 11 approaches the first connecting plate 6, and the first movable plate 11 presses the second limit switch 40 to stop the first motor 31 from rotating. When the first movable plate 11 needs to move toward the first connecting plate 6, the first limit switch 39 does not limit the rotation direction of the motor. When the first movable plate 11 needs to move away from the first connecting plate 6, the second limit switch 40 does not limit the rotation direction of the motor. The first limit switch 39 and the second limit switch 40 can reduce the possibility of the first movable plate 11 moving more than one degree.

[0037] Please refer to Figure 3 and Figure 4 A second motor 41 is disposed on the first fixed plate 23 , and an output end of the second motor 41 is connected to the second bidirectional screw 25 ; the second motor 41 is powered on, so that the second motor 41 starts and can drive the second bidirectional screw 25 to rotate.

[0038] Please refer to Figure 1 , Figure 2 and Fig. 9 , and also includes a cover plate 42, and a mounting groove is connected to the first through hole 9; when spinal correction treatment is not needed, the correction plate 5 is lowered, and then the cover plate 42 is placed in the mounting groove and can be used as a flat bed.

[0039] Please refer to Figure 1 and Fig. 9 Two groups of taking-in and putting grooves 43 are arranged on the cover plate 42; the cover plate 42 can be conveniently removed from the installation groove through the two groups of taking-in and putting grooves 43.

[0040] Please refer to Figure 1The bottom ends of the four groups of legs 2 are all provided with adjusting screws 44; the stability of the legs 2 can be conveniently adjusted by adjusting the screws 44.

[0041] In summary, when the orthopedic spinal correction device is in use, the lifting assembly can drive the correction plate 5 and the first connecting plate 6 to rise and fall in the first through hole 9, and the correction plate 5 is lifted to perform correction work on the patient. The rotation of the first bidirectional screw 13 can drive the two groups of first movable plates 11 to move toward the middle of the first connecting plate 6 or away from the first connecting plate 6 at the same time. The first movable plate 11 slides on the first slide bar 12, and the first movable plate 11 drives the connecting shaft 10 to move, thereby making the middle of the correction plate 5 bulge upward to make the curvature larger, or making the middle position of the correction plate 5 move downward to reduce the curvature. Therefore, compared with repeatedly adjusting the curvature of the cushion, this device can adjust the curvature more accurately. When the middle position of the correction plate 5 moves up and down, it drives the support plate 8 to move at the same time. By supporting the support plate 8 through the support assembly, the possibility of the correction plate 5 being crushed can be reduced.

[0042] The first motor 31, the second motor 41 and the electric cylinder 36 are well-known equipment purchased directly from the market by technicians in this field. We only use them here without making any structural or functional improvements. We will not go into details here. The first motor 31, the second motor 41 and the electric cylinder 36 are provided with matching control switches. The installation position of the control switch is selected according to actual usage requirements to facilitate the operator to perform operation and control.

[0043] The above embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. An orthopedic spinal correction device, comprising a bed body (1), the bottom end of the bed body (1) is connected to a support leg (2), characterized in that: The bed frame (1) further comprises a correction plate (5), a first connecting plate (6), a mounting frame (7), an adjustment assembly and a support plate (8); a first through hole (9) is arranged in the middle of the bed body (1) near the head of the bed (3); both ends of the correction plate (5) are mounted on the first connecting plate (6) through the adjustment assembly; the top of the support plate (8) is connected to the middle area of ​​the bottom end of the correction plate (5); the adjustment assembly comprises a connecting shaft (10), a first movable plate (11), a first sliding rod (12) and a first bidirectional screw (13); the connecting shaft (10) is mounted on the correction plate (5); the first movable plate (11) is rotatably connected to the connecting shaft (10); the first sliding rod (12) is connected to the first connecting plate (6); the first movable plate (11) is slidably connected to the corresponding first sliding rod (12); the first connecting plate (6) is provided with a rotating hole; the first bidirectional screw (13) is rotatably connected to the rotating hole; the first bidirectional screw (13) is cooperatively connected to the first movable plate (11).

2. The device according to claim 1, characterized in that The device also includes a support assembly, which includes a support rod (14), a connecting block (15), two groups of second sliding rods (16), two groups of springs (17), a slider (18), two groups of second connecting plates (19) and a pulling assembly. The support rod (14) is connected to the bottom end of the support plate (8), the first connecting plate (6) is provided with a first sliding hole, the support rod (14) is slidably connected to the first sliding hole, a plurality of groups of wedge-shaped blocks (20) are provided on one side of the support rod (14), a plurality of groups of wedge-shaped slots (21) matched with the wedge-shaped blocks (20) are provided on the connecting block (15), and the wedge-shaped blocks (20) and the wedge-shaped slots (21) are connected to each other. Sliding clamping, one end of the two groups of the second sliding rods (16) are connected to the connecting block (15), two groups of second sliding holes are provided on the slider (18), the two groups of second sliding rods (16) are respectively slidably connected to the two groups of second sliding holes, the two groups of springs (17) are respectively slidably fitted with the two groups of second sliding rods (16), the two groups of the second connecting plates (19) are respectively connected to one end of the two groups of second sliding rods (16) away from the connecting block (15), the top of the first connecting plate (6) is provided with two groups of sliding grooves (22), the slider (18) is slidably connected to the two groups of sliding grooves (22), the pulling component is installed on the top of the first connecting plate (6), and the pulling component is connected to the slider (18).

3. The device according to claim 2, characterized in that The device also includes a lifting assembly, which includes two groups of first fixed plates (23), two groups of third sliding rods (24), a second bidirectional screw (25), two groups of second movable plates (26), two groups of first hinge seats (27), two groups of second hinge seats (28), two groups of push plates (29) and four groups of fourth sliding rods (30). The two groups of the first fixed plates (23) are respectively installed in the installation frame (7), the two ends of the two groups of the third sliding rods (24) are respectively connected to the inner ends of the two groups of the first fixed plates (23), the second bidirectional screw (25) is rotatably connected to the two groups of the first fixed plates (23), the two groups of the second movable plates (26) are both slidably connected to the two groups of the third sliding rods (24), and the two groups of the second movable plates (26) are symmetrically matched with the second bidirectional screw (25); The two groups of the first hinged seats (27) are respectively connected to the top ends of the two groups of the second movable plates (26), the two groups of the second hinged seats (28) are symmetrically connected to the bottom ends of the first connecting plates (6), the bottom ends of the two groups of the pushing plates (29) are respectively hinged to the two groups of the first hinged seats (27), the top ends of the two groups of the pushing plates (29) are respectively hinged to the two groups of the second hinged seats (28), the four groups of the fourth sliding rods (30) are installed at the bottom ends of the first connecting plates (6), the bottom ends of the mounting frame (7) are provided with four groups of fourth sliding holes, and the four groups of the fourth sliding rods (30) are respectively slidably connected to the four groups of the fourth sliding holes.

4. The device according to claim 3, characterized in that The invention also comprises a first motor (31), a driving shaft (32), a first gear (33) and a second gear (34); a second through hole (35) is provided in the middle area of ​​the first connecting plate (6); the motor is mounted on the top of the first motor (31); the first gear (33) is connected to the first motor (31) through the driving shaft (32); the second gear (34) is mounted on the first bidirectional screw (13); the second gear (34) is located in the second through hole (35); and the first gear (33) is meshed with the second gear (34).

5. The device according to claim 4, characterized in that The pulling assembly comprises an electric cylinder (36), the electric cylinder (36) is mounted on a first connecting plate (6), and the output end of the electric cylinder (36) is connected to a slide block (18).

6. The device according to claim 5, characterized in that The invention also includes a first mounting block (37), a second mounting block (38), a first limit switch (39) and a second limit switch (40), wherein the first mounting block (37) is connected to one end of one group of first slide bars (12), the second mounting block (38) is connected to one side of the first connecting plate (6), the first limit switch (39) is mounted on the first connecting block (15), the second limit switch (40) is mounted on the second connecting block (15), and the first limit switch (39) and the second limit switch (40) are both electrically connected to the first motor (31).

7. The device according to claim 6, characterized in that A second motor (41) is disposed on the first fixing plate (23), and an output end of the second motor (41) is connected to a second bidirectional screw rod (25).

8. The device according to claim 7, characterized in that It also includes a cover plate (42), and a mounting groove (45) is provided in communication with the first through hole (9).

9. The device according to claim 8, characterized in that The cover plate (42) is provided with two groups of taking and placing grooves (43).

10. The device according to claim 9, characterized in that The bottom ends of the four groups of legs (2) are all provided with adjusting screws (44).

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