A lifting device for psychiatric examination

Abstract

The present invention discloses a lifting device for psychiatric internal medicine examination, which utilizes a rocker to drive a ratchet transmission component to perform unidirectional oscillating motion, thereby achieving the effect of automatically tightening a fixing belt when a patient struggles, and automatically adjusting the fixing force according to the amplitude of the patient's struggle to achieve all-round fixation and prevent the patient from breaking free. The buffer protection component can absorb the impact force when the patient struggles violently, thereby ensuring the stability of the device and the safety of the patient. The leg lifting rod is connected to the telescopic rod to achieve synchronous lifting and lowering of the leg lifting plate, which is convenient for doctors to conduct examinations.

Description

Technical Field

[0001] The present invention relates to the technical field of psychiatric internal medicine, and in particular to a lifting device for psychiatric internal medicine examination. Background Art

[0002] In psychiatry, patients need to use restraint belts or similar devices to ensure the safety of patients and medical staff in certain special cases, such as when patients cannot control their behavior due to mental symptoms. Although there are many lifting devices with different uses in the prior art, they still have the following technical problems:

[0003] (1) Traditional fixation devices can usually only provide simple restraints and cannot effectively respond to the patient's struggles. When the patient struggles, the fixation force will not automatically increase, which may cause the patient to break free and increase the risk during the examination;

[0004] (2) Traditional fixation devices do not have an effective buffer mechanism to absorb the impact force when the patient struggles violently. The patient comes into hard contact with the device, which can easily cause physical injury to the patient;

[0005] (3) Most existing lifting devices only lift a certain part of the body, which can make it difficult to control the patient when the unfixed part of the body struggles. Summary of the invention

[0006] The present invention overcomes the shortcomings of the prior art and provides a lifting device for psychiatric examinations. The rocker is used to drive the ratchet transmission assembly to perform unidirectional oscillating motion. The ratchet transmission assembly can achieve the effect of tighter fixation as the patient struggles more. At the same time, a buffer protection assembly is also provided on the rocker. The damping property of the buffer assembly is utilized to ensure the stability of the device when the patient struggles violently, while also protecting the patient's safety. The device also includes a leg lifting rod. When the telescopic rod is lifted, the patient's legs are lifted synchronously, which is convenient for the doctor to use during the examination.

[0007] The technical scheme adopted by the present invention is as follows: This scheme provides a lifting device for psychiatric examination, including a base, a telescopic rod is fixedly provided on the top of the base, an L-shaped support frame is fixedly provided on the piston rod end of the telescopic rod, a central axis is rotatably provided on the top of the vertical plate of the L-shaped support frame, rockers are symmetrically fixedly provided at both ends of the central axis, buffer protection components are fixedly provided at the top and bottom ends of the opposite side walls of the two rockers, and a ratchet transmission component is provided on the other side wall of the rocker; a backrest plate is fixedly provided on the end of the buffer protection component away from the L-shaped support frame, a back fixing component is fixedly provided on the backrest plate in a longitudinal array, a seat plate is fixedly provided on the top wall of the horizontal plate of the L-shaped support frame, hand fixing components are symmetrically fixedly provided on the top of the seat plate, a leg lifting plate is rotatably connected to the side wall of the seat plate away from the L-shaped support frame, and leg fixing components are fixedly provided on the leg lifting plate in a longitudinal array.

[0008] Furthermore, the ratchet transmission assembly includes a ratchet, a pawl, a fixed spring, a transmission wheel one and a transmission wheel two, the ratchet is rotatably arranged on the side wall of the rocker, the ratchet is coaxially fixedly connected to the end of the central axis, the transmission wheel is coaxially rotatably arranged on the side wall of the ratchet, the transmission wheel two is rotatably arranged on the side wall of the lower end of the rocker, the transmission wheel one and the transmission wheel two are connected by belt transmission, the pawl is rotatably arranged on the side wall of the rocker, the pawl is engaged with the ratchet, one end of the fixed spring is fixedly connected to the side wall of the rocker close to the ratchet, and the other end of the fixed spring is fixedly connected to the side wall of the pawl, the patient's struggle will drive the unidirectional oscillating motion of the ratchet, which will then drive the ratchet to rotate unidirectionally.

[0009] Furthermore, the back fixing component includes a turbine 1, a worm 1 and a back tightening belt. The turbine 1 is rotatably arranged at the upper end of the backrest board, the worm 1 is rotatably arranged at one end of the backrest board close to the L-shaped support frame, the worm 1 is meshed with the turbine 1, one end of the back tightening belt is wound on the circumferential wall of the turbine 1, the worm 1 is connected to the transmission wheel 1 through a belt drive, and the worm 1s of adjacent back fixing components are connected through a belt drive. The unidirectional rotation of the ratchet wheel will eventually cause the rotation of the turbine 1, and the tightening belt wound on the turbine 1 will be tightened.

[0010] Furthermore, the hand fixing assembly includes an armrest plate, a transmission wheel three, a transmission wheel four, a transmission shaft, a transmission wheel five, a transmission wheel six, a turbine two, a worm two and a hand tightening belt. The armrest plate is symmetrically fixed on both sides of the seat plate, the transmission wheel three and the transmission wheel four are symmetrically rotatable on the inner wall of the armrest plate, the side walls of the transmission wheel three and the transmission wheel four are located in the same plane, the transmission shaft is rotatable on the lower end of the seat plate through a connecting plate, the transmission wheel five and the transmission wheel six are respectively fixed on both ends of the transmission shaft, the turbine two is coaxially rotatable on the side wall of the transmission wheel three, the worm two is rotatable on the inner wall of the armrest plate, the worm two is meshed with the turbine two, the transmission wheel three is connected to the transmission wheel two by a belt, the transmission wheel four is connected to the transmission wheel three by a belt, the transmission wheel five is connected to the transmission wheel four by a belt, and one end of the hand tightening belt is wound on the circumferential wall of the worm two.

[0011] Furthermore, the leg fixing assembly includes a leg lifting plate, a turbine three, a worm three and a leg tightening belt. The turbine three is rotatably arranged on the upper wall of the leg lifting plate, the worm three is rotatably arranged on the upper wall of the leg lifting plate, the worm three is meshed with the turbine three, and the leg tightening belt is wound on the circumferential wall of the turbine three. The worm three is connected to the transmission wheel six through a belt drive, and the worm three of adjacent leg fixing assemblies are connected through a belt drive. Under the transmission of the transmission mechanism, the rotation of the ratchet wheel will also drive the rotation of the leg turbine three, and the leg tightening belt will be tightened at this time.

[0012] Furthermore, a leg lifting rod is fixedly provided on the side wall of the telescopic rod, and a slider is provided at the end of the leg lifting rod away from the telescopic rod. The slider is slidably connected to the bottom end of the leg lifting plate. When the telescopic rod is lifted, the leg lifting rod will be driven to rise synchronously. At this time, the slider slides in the slide groove, which can drive the leg lifting plate to rise.

[0013] Furthermore, the buffer protection assembly includes a buffer spring, a buffer rod and a sleeve. The buffer rod is fixed at the rear end of the backrest plate, the buffer spring is sleeved on the buffer rod, one end of the buffer spring is fixedly connected to the end of the sleeve away from the rocker, the other end of the buffer spring is fixedly connected to the end of the buffer rod close to the rocker, the sleeve is sleeved on the end of the buffer rod close to the rocker, and the side wall of the sleeve is fixedly connected to the rocker. The buffer protection assembly can ensure that the device shakes smoothly and ensure that the patient and the device can maintain stability even when the patient struggles violently.

[0014] Furthermore, a limit block is fixed on the ratchet teeth of the ratchet wheel. When the ratchet wheel rotates to a certain angle, it will not be able to continue to rotate. At this time, the tightening belt has also reached the maximum tightening limit, preventing the tightening belt from being too tight and causing damage to the patient.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) The forward and backward movement of the patient's struggle will be transmitted to the rocker through the backrest. Under the restriction of the pawl, the rocker drives the ratchet to perform unidirectional oscillation movement. The unidirectional rotation of the ratchet drives the transmission wheel to rotate. Multiple sets of transmission wheels are used to tighten the back tightening belt, hand tightening belt and leg tightening belt synchronously. The fixing force can be automatically adjusted according to the patient's struggling amplitude, achieving a comprehensive fixing effect, preventing the patient from breaking free, and ensuring the safety of the patient during the examination;

[0017] (2) At the same time, the back fixation assembly, hand fixation assembly and leg fixation assembly use a turbine structure worm gear, which can only drive the worm gear unilaterally through the unidirectional oscillation movement of the ratchet wheel, thus avoiding the reverse driving of the transmission structure when the patient struggles;

[0018] (3) The device is also provided with a buffer protection component, which is connected to the ratchet transmission component. The buffer protection component drives the movement of the ratchet transmission component. When the patient struggles, the buffer spring can drive the buffer rod to move slowly. Through the damping change of the spring, part of the vibration or impact force of the patient's struggle is offset, thereby protecting the patient's safety;

[0019] (4) The present invention also includes an armrest plate and a leg lifting assembly, and the leg lifting assembly is connected to the telescopic rod. When the lifting structure body is lifted, the slider on the leg lifting rod will drive the leg lifting plate to rise accordingly, which facilitates the use of the inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a lifting device for psychiatric examination proposed by the present invention;

[0021] Figure 2 A schematic diagram of the base structure proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the connecting plate structure proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer protection component proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the ratchet transmission assembly proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the back fixing assembly proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the worm gear structure of the hand fixing assembly proposed by the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the transmission wheel set of the hand fixing assembly proposed by the present invention;

[0028] Fig. 9 This is a schematic diagram of the structure of the leg fixing assembly proposed by the present invention;

[0029] Fig.10 The present invention provides a schematic diagram of the working structure of the leg lifting rod.

[0030] Among them, 1. base, 11. telescopic rod, 111. leg lifting rod, 112. slider, 12. L-shaped support frame, 121. seat plate, 122. connecting plate, 13. central axis, 14. rocker, 15. buffer protection component, 151. buffer spring, 152. buffer rod, 153. sleeve, 16. ratchet transmission component, 161. ratchet, 162. pawl, 163. fixing spring, 164. limit block, 165. transmission wheel 1, 166. transmission wheel 2, 17. Backrest board, 2. Back fixing assembly, 21. Turbine one, 22. Worm one, 23. Back tightening belt, 3. Hand fixing assembly, 31. Armrest board, 32. Drive wheel three, 33. Drive wheel four, 34. Drive shaft, 35. Drive wheel five, 36. Drive wheel six, 37. Turbine two, 38. Worm two, 39. Hand tightening belt, 4. Leg fixing assembly, 41. Leg lifting plate, 42. Leg tightening belt, 43. Turbine three, 44. Worm three.

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: Figure 1-Figure 9The structure shown in the figure, this scheme provides a lifting device for psychiatric internal medicine examination, including a base 1, a telescopic rod 11 is fixedly provided at the top of the base 1, an L-shaped support frame 12 is fixedly provided at the piston rod end of the telescopic rod 11, a central axis 13 is rotatably provided at the top of the vertical plate of the L-shaped support frame 12, and the central axis 13 connected by rotation is used to sense the movement of the patient when struggling, rockers 14 are symmetrically fixedly provided at both ends of the central axis 13, and buffer protection components 15 are fixedly provided at the top and bottom ends of the opposite side walls of the two rockers 14, and a ratchet transmission component 16 is provided on the other side wall of the rocker 14; the buffer protection component 1 A backrest board 17 is fixedly provided at one end away from the L-shaped support frame 12, and back fixing components 2 are fixedly provided on the backrest board 17 in a longitudinal array. A seat board 121 is fixedly provided on the top wall of the horizontal board of the L-shaped support frame 12, and hand fixing components 3 are symmetrically fixedly provided on the top of the seat board 121. A leg lifting board 41 is rotatably connected to the side wall of the seat board 121 away from the L-shaped support frame 12, and leg fixing components 4 are fixedly provided on the leg lifting board 41 in a longitudinal array. The ratchet transmission component 16 includes a ratchet 161, a ratchet pawl 162, a fixing spring 163, a transmission wheel 165, and a transmission wheel 2 166. The ratchet 161 is rotatably arranged on the side wall of the rocker 14, and the ratchet 161 is coaxially fixedly connected to the end of the central axis 13. The transmission wheel 165 is coaxially rotatably arranged on the side wall of the ratchet 161, and the transmission wheel 2 166 is rotatably arranged on the side wall of the lower end of the rocker 14. The transmission wheel 165 and the transmission wheel 2 166 are connected through belt transmission. The pawl 162 is rotatably arranged on the side wall of the rocker 14, and the pawl 162 is engaged with the ratchet 161. One end of the fixing spring 163 is fixedly connected to the side wall of the rocker 14 close to the ratchet 161, and the other end of the fixing spring 163 is fixedly connected to the side wall of the rocker 14 close to the ratchet 161. The end is fixedly connected to the side wall of the ratchet 162; the back fixing assembly 2 includes a turbine 21, a worm 22 and a back tightening belt 23, the turbine 21 is rotatably arranged on the upper end of the backrest board 17, the worm 22 is rotatably arranged on one end of the backrest board 17 close to the L-shaped support frame 12, the worm 22 is meshed with the turbine 21, one end of the back tightening belt 23 is rolled on the circumferential wall of the turbine 21, the worm 22 is connected to the driving wheel 165 through a belt drive, and the worms 22 of adjacent back fixing assemblies 2 are connected through a belt drive;The hand fixing assembly 3 includes an armrest plate 31, a transmission wheel 32, a transmission wheel 4 33, a transmission shaft 34, a transmission wheel 5 35, a transmission wheel 6 36, a turbine 2 37, a worm 2 38 and a hand tightening belt 39. The armrest plate 31 is symmetrically fixed on both sides of the seat plate 121, and the transmission wheel 32 and the transmission wheel 4 33 are symmetrically rotated on the inner wall of the armrest plate 31. The side walls of the transmission wheel 32 and the transmission wheel 4 33 are located in the same plane. The transmission shaft 34 is rotatably arranged at the lower end of the seat plate 121 through the connecting plate 122. The transmission wheel 5 35 and transmission wheel six 36 are fixedly arranged at both ends of the transmission shaft 34 respectively, turbine two 37 is coaxially rotatable on the side wall of transmission wheel three 32, worm two 38 is rotatably arranged on the inner wall of the armrest board 31, worm two 38 is meshed with turbine two 37, transmission wheel three 32 is connected with transmission wheel two 166 through a belt, transmission wheel four 33 is connected with transmission wheel three 32 through a belt, transmission wheel five 35 is connected with transmission wheel four 33 through a belt, and one end of the hand tightening belt 39 is wound on the circumferential wall of worm two 38; the leg fixing assembly 4 includes The leg lifting plate 41, the turbine 3 43, the worm 3 44 and the leg tightening belt 42, the turbine 3 43 is rotatably arranged on the upper wall of the leg lifting plate 41, the worm 3 44 is rotatably arranged on the upper wall of the leg lifting plate 41, the worm 3 44 is meshed with the turbine 3 43, the worm 3 44 is connected to the transmission wheel 6 36 through a belt drive, the leg tightening belt 42 is wound on the circumferential wall of the turbine 3 43, and the worm 3 44 of the adjacent leg fixing components 4 are connected through a belt drive; the buffer protection component 15 includes a buffer spring 151, a buffer Rod 152 and sleeve 153, buffer rod 152 is fixedly arranged at the rear end of backrest board 17, buffer spring 151 is sleeved on buffer rod 152, one end of buffer spring 151 is fixedly connected to the end of sleeve 153 away from rocker 14, the other end of buffer spring 151 is fixedly connected to the end of buffer rod 152 close to rocker 14, sleeve 153 is sleeved on the end of buffer rod 152 close to rocker 14, the side wall of sleeve 153 is fixedly connected to rocker 14, and a limit block 164 is fixedly arranged on the ratchet teeth of ratchet 161. ;

[0034] In this embodiment, after the patient sits on the seat board 121, the patient's upper body, arms and legs are fixed respectively by the back tightening belt 23, the hand tightening belt 39 and the leg tightening belt 42. When the patient is emotionally unstable and struggles violently, the patient's back and forth swinging will drive the backrest board 17 to shake back and forth, and the shaking of the backrest board 17 will be transmitted to the buffer spring 151 through the buffer rod 152 connected to the backrest board 17. When the patient hits the backrest board, the buffer spring 151 is compressed and deformed to absorb part of the patient's energy. When the patient leaves the backrest board 17, the buffer spring 151 stretches, and the dynamic release of its elastic potential energy is utilized, and the damping property of the buffer spring 151 is utilized to reduce the hard impact caused The damage caused by hard impact is reduced by the damping property of the buffer spring 151, thereby reducing the patient's discomfort. At the same time, the forward and backward movement of the backrest plate 17 drives the rocker 14 fixedly connected to the buffer protection component 15 to swing forward and backward around the central axis 13. The forward and backward swinging causes the pawl 162 fixed to the side wall of the rocker 14 to swing and advance on the ratchet 161. The unidirectional rotation of the ratchet 161 is driven by the engagement of the pawl 162 with the ratchet teeth on the ratchet 161. The unidirectional rotation enables the transmission wheel 165 to rotate coaxially and be fixed to the side wall of the ratchet 161. The rotation of the transmission wheel 165 drives the worm 22 to rotate through the belt drive. The worm 22 is meshed with a turbine 1 21, since one end of the back tightening belt 23 is fixed on the turbine 1 21, the rotation of the turbine 1 21 will tighten the back tightening belt 23, thereby increasing the fixing force on the patient and achieving the effect of fixing the patient more tightly; in addition, the transmission wheel 1 165 is connected to the transmission wheel 2 166 through a belt transmission, and the transmission wheel 2 166 is also connected to the transmission wheel 3 32 through a belt transmission. When the transmission wheel 1 165 rotates, the transmission wheel 2 166 and the transmission wheel 3 32 will also rotate accordingly, and the turbine 2 37 fixed to the side wall of the transmission wheel 3 32 coaxially rotates will also rotate accordingly, driving the worm 2 38 to rotate, and the hand tightening belt 39 is wound on the worm 2 38, so at this time the hand is tightened. Belt 39 will also be tightened to fix the patient's hand; similarly, transmission wheel three 32 is connected to transmission wheel four 33 by belt drive, and transmission wheel four 33 is connected to transmission wheel five 35 by belt drive. Transmission wheel five 35 is arranged at one end of transmission shaft 34, and transmission wheel six 36 is rotatably arranged at the other end of transmission shaft 34. Through the transmission of the transmission component, transmission wheel one 165 will eventually drive transmission wheel six 36 to rotate; further, transmission wheel six 36 is connected to worm gear three 44 by belt drive, and worm gear three 44 is meshed with turbine three 43, and the leg tightening belt 42 is wound on turbine three 43. The rotation of turbine three 43 will tighten the leg tightening belt 42, thereby achieving the effect of fixing the patient's legs.

[0035] Example 2: This example is based on Example 1. Please refer to Figure 2 and Fig.10The difference is that, in this embodiment, a leg lifting rod 111 is fixedly provided on the side wall of the telescopic rod 11, and a slider 112 is provided at the end of the leg lifting rod 111 away from the telescopic rod 11, and the slider 112 is slidably connected to the bottom end of the leg lifting plate 41; when the telescopic rod 11 is lifted, the leg lifting rod 111 connected to the telescopic rod 11 will also be lifted accordingly, and a freely movable slider 112 is provided on the other end of the leg lifting rod 111, and the slider 112 is slidably arranged in the slide groove at the bottom end of the leg lifting plate 41. When the leg lifting rod 111 is lifted, the slider 112 will slide in the slide groove, thereby driving the leg lifting plate 41 to be lifted.

[0036] Example 3: This example is based on Example 1. Please refer to Figure 1 and Figure 5 In the structure shown, the ratchet 161 of the first embodiment rotates to tighten the back tightening belt 23, the hand tightening belt 39 and the leg tightening belt 42. When the ratchet 161 rotates to a certain angle, a limit block 164 is fixed on the ratchet teeth of the ratchet 161. The limit block 164 will limit the ratchet 161 from continuing to rotate to prevent the back tightening belt 23, the hand tightening belt 39 and the leg tightening belt 42 from being over-tightened and causing injury to the patient.

[0037] The present invention and its implementation modes are described above. Such description is not restrictive. What is shown in the drawings is only one of the implementation modes of the present invention. The actual structure is not limited thereto.

[0038] In summary, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creatively designing without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A lifting device for psychiatric examination, comprising a base (1), a telescopic rod (11) being fixedly provided at the top of the base (1), characterized in that: An L-shaped support frame (12) is fixedly provided at the piston rod end of the telescopic rod (11); a central axis (13) is rotatably provided at the top end of the vertical plate of the L-shaped support frame (12); rockers (14) are symmetrically fixedly provided at both ends of the central axis (13); buffer protection components (15) are fixedly provided at the top and bottom ends of the opposite side walls of the two rockers (14); a ratchet transmission component (16) is provided on the other side wall of the rocker (14); the buffer protection component (15) is away from the L-shaped support frame (12); A backrest plate (17) is fixedly provided at one end, and back fixing components (2) are fixedly provided on the backrest plate (17) in a longitudinal array; a seat plate (121) is fixedly provided on the top wall of the horizontal plate of the L-shaped support frame (12), and hand fixing components (3) are symmetrically fixedly provided on the top of the seat plate (121); a leg lifting plate (41) is rotatably connected to the side wall of the seat plate (121) away from the L-shaped support frame (12), and leg fixing components (4) are fixedly provided on the leg lifting plate (41) in a longitudinal array; The ratchet transmission assembly (16) comprises a ratchet (161), a pawl (162), a fixing spring (163), a first transmission wheel (165) and a second transmission wheel (166); the ratchet (161) is rotatably arranged on a side wall of the rocker (14); the ratchet (161) is coaxially fixedly connected to an end of the central shaft (13); the first transmission wheel (165) is coaxially rotatably arranged on the side wall of the ratchet (161); and the second transmission wheel (166) is rotatably arranged on the side wall of the ratchet (161). On the side wall of the lower end of the rocker (14), the transmission wheel 1 (165) is connected to the transmission wheel 2 (166) through a belt transmission, the pawl (162) is rotatably arranged on the side wall of the rocker (14), the pawl (162) is meshed with the ratchet (161), one end of the fixing spring (163) is fixedly connected to the side wall of the rocker (14) close to the ratchet (161), and the other end of the fixing spring (163) is fixedly connected to the side wall of the pawl (162); The hand fixing assembly (3) comprises an armrest plate (31), a transmission wheel three (32), a transmission wheel four (33), a transmission shaft (34), a transmission wheel five (35), a transmission wheel six (36), a turbine two (37), a worm gear two (38) and a hand tightening belt (39); a connecting plate (122) is also fixedly provided on the seat plate (121); the armrest plate (31) is symmetrically fixedly provided on both sides of the seat plate (121); the transmission wheel three (32) and the transmission wheel four (33) are symmetrically rotatably provided on the inner wall of the armrest plate (31); the side walls of the transmission wheel three (32) and the transmission wheel four (33) are located in the same plane; the transmission shaft (34) is rotatably provided through the connecting plate (122) The handrail (31) is rotatably mounted on the lower end of the seat plate (121); the transmission wheel five (35) and the transmission wheel six (36) are fixedly mounted on the two ends of the transmission shaft (34), respectively; the turbine two (37) is coaxially rotatably mounted on the side wall of the transmission wheel three (32); the worm two (38) is rotatably mounted on the inner wall of the armrest plate (31); the worm two (38) is meshed with the turbine two (37); the transmission wheel three (32) is connected to the transmission wheel two (166) via a belt; the transmission wheel four (33) is connected to the transmission wheel three (32) via a belt; the transmission wheel five (35) is connected to the transmission wheel four (33) via a belt; and one end of the hand tightening belt (39) is wound on the circumferential wall of the worm two (38).

2. A lifting device for psychiatric examination according to claim 1, characterized in that: The back fixing assembly (2) comprises a turbine (21), a worm (22) and a back tightening belt (23); the turbine (21) is rotatably arranged at the upper end of the backrest plate (17); the worm (22) is rotatably arranged at one end of the backrest plate (17) close to the L-shaped support frame (12); the worm (22) is meshed with the turbine (21); one end of the back tightening belt (23) is wound on the circumferential wall of the turbine (21); the worm (22) is connected to the driving wheel (165) via a belt drive; and the worms (22) of adjacent back fixing assemblies (2) are connected via a belt drive.

3. A lifting device for psychiatric examination according to claim 1, characterized in that: The leg fixing assembly (4) comprises a turbine three (43), a worm three (44) and a leg tightening belt (42); the turbine three (43) is rotatably arranged on the upper wall of the leg lifting plate (41); the worm three (44) is rotatably arranged on the upper wall of the leg lifting plate (41); the worm three (44) is meshed with the turbine three (43); the worm three (44) is connected to the transmission wheel six (36) via a belt drive; the leg tightening belt (42) is wound on the circumferential wall of the turbine three (43); and the worm threes (44) of adjacent leg fixing assemblies (4) are connected via a belt drive.

4. A lifting device for psychiatric examination according to claim 1, characterized in that: A leg lifting rod (111) is fixedly provided on the side wall of the telescopic rod (11), and a slider (112) is provided at one end of the leg lifting rod (111) away from the telescopic rod (11), and the slider (112) is slidably connected to the bottom end of the leg lifting plate (41).

5. The lifting device for psychiatric examination according to claim 1, characterized in that: The buffer protection component (15) comprises a buffer spring (151), a buffer rod (152) and a sleeve (153); the buffer rod (152) is fixedly arranged at the rear end of the backrest plate (17); the buffer spring (151) is sleeved on the buffer rod (152); one end of the buffer spring (151) is fixedly connected to an end of the sleeve (153) away from the rocker (14); the other end of the buffer spring (151) is fixedly connected to an end of the buffer rod (152) close to the rocker (14); the sleeve (153) is sleeved on an end of the buffer rod (152) close to the rocker (14); and the side wall of the sleeve (153) is fixedly connected to the rocker (14).

6. The lifting device for psychiatric examination according to claim 1, characterized in that: A limit block (164) is fixedly provided on the ratchet teeth of the ratchet wheel (161).

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