A restraint device for infusion of psychiatric patients

Abstract

The present invention relates to the technical field of restraint devices, and specifically to a restraint device for infusion of psychiatric patients, comprising a bracket and an infusion seat, wherein a body strap that can be fixed is arranged on the infusion seat, an armrest is fixedly installed on the bracket, guide frames are installed on both sides of the armrest, a control box is fixedly installed on the bracket, and an arm strap that can be pulled out is arranged in the control box; a rotating shaft is arranged in the control box, and the arm strap is limitedly wound around the rotating shaft, a volute spring is arranged on the rotating shaft to provide elastic force, a rotating wheel is fixedly installed on the rotating shaft, a spring guide rod is movably arranged on the rotating wheel, a counterweight seat is fixedly connected to the spring guide rod, and a latching tooth is arranged on the counterweight seat, a ratchet bar is installed for lifting and lowering below the control box, a threaded sleeve is installed at the bottom of the control box, a screw is connected in the threaded sleeve, and the screw can pass through a protective cover structure fixed on the control box; the purpose of providing appropriate comfort for patients of different degrees and ensuring safety is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of restraint devices, in particular to a restraint device used for infusion of psychiatric patients. Background Art

[0002] In psychiatric nursing, some patients may exhibit aggressive behaviors, self-harm behaviors, or refuse treatment due to the influence of mental illness. These situations not only pose a threat to the safety of the patients themselves, but also bring certain challenges to the work of medical staff. In this context, the use of appropriate restraint devices is of great significance to ensure the safety of patients during medical operations such as infusion. Traditional restraint techniques mainly include physical restraints and chemical restraints.

[0003] However, conventional physical restraints often cause discomfort to patients, may trigger resistance from patients, and may cause physical harm in some cases. For example, when using straps to restrain psychiatric patients, in order to avoid accidents, the straps are usually tied tightly, but not all patients have the same severity of illness. Many patients with mild illnesses will only occasionally have involuntary convulsions. If they are tied tightly, it will cause them discomfort. If they are tied loosely, medical staff often find it difficult to grasp the severity, which is prone to accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a restraint device for infusion of psychiatric patients, so as to provide appropriate comfort for patients of different levels and ensure safety, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a restraint device for infusion of psychiatric patients, comprising a bracket and an infusion seat, the infusion seat is provided with a body strap that can be fixed, and an armrest is fixedly installed on the bracket, guide frames are installed on both sides of the armrest, and a control box is fixedly installed on the bracket, a pull-out arm strap is provided in the control box, and a second fixing seat is fixedly installed on the infusion seat; a rotating shaft is provided in the control box, and the arm strap is limitedly wound on the rotating shaft, a volute spring is provided on the rotating shaft to provide elastic force, and the rotating shaft A rotating wheel is fixedly installed on the shaft, a spring guide rod is movably arranged on the rotating wheel, a counterweight seat is fixedly connected to the spring guide rod, and a latching tooth is arranged on the counterweight seat, a ratchet bar is lifted and installed below the control box, and the ratchet bar is located below the rotating wheel, a threaded sleeve is installed at the bottom of the control box, and a screw is connected in the threaded sleeve, the ratchet bar is lifted up by the screw, a scale for screw positioning is arranged on the threaded sleeve, and the screw can pass through a protective cover structure fixed on the control box, the protective cover structure is a combined structure, and the protective cover structure is unlocked by a magnetic key.

[0006] Preferably, the infusion chair comprises a seat cushion mounted on a bracket, a backrest is mounted on the seat cushion, a body strap is connected to the backrest, and a first fixing seat is fixedly mounted on the seat cushion.

[0007] Preferably, the armrests are symmetrically arranged on both sides of the infusion chair, and a through slot is provided on the guide frame, the arm strap passes through the through slot of the guide frame and is connected to the second fixed seat, and a guide seat is provided on the control box, and the arm strap is pulled out of the control box from the guide seat.

[0008] Preferably, a limit plate is provided on the rotating shaft, and the arm strap is wound between the two limit plates, the inner end of the spiral spring is connected to the rotating shaft, and the outer end of the spiral spring is connected to the positioning plate in the control box.

[0009] Preferably, a cavity is provided in the rotating wheel, and a spring guide rod is provided through the outer wall of the rotating wheel, 6-10 spring guide rods are provided in a circular array on the rotating wheel, and a counterweight seat is installed at the end of the spring guide rod, and a latch tooth is provided on the surface of the counterweight seat.

[0010] Preferably, a guide rod is vertically installed in the control box, and a slide seat is slidably installed on the guide rod, the ratchet bar is fixedly installed on the slide seat, and the ratchet bar is arranged upward, a stop block is arranged in the middle of the guide rod, and a stabilizing spring is connected between the stop block and the slide seat.

[0011] Preferably, the threaded sleeve is vertically arranged below the ratchet bar, and the screw rod is arranged to penetrate the threaded sleeve, the top end of the screw rod can be against the bottom surface of the ratchet bar, and the bottom end of the screw rod is fixedly mounted with a control seat.

[0012] Preferably, a support rod is fixedly mounted on the control seat, and a positioning ring is provided at the top end of the support rod, a scale is provided on the outer wall of the threaded sleeve, and the positioning ring is sleeved on the outside of the threaded sleeve.

[0013] Preferably, the protective sleeve structure includes a fixed sleeve and a clamping sleeve, and the fixed sleeve is installed on the bottom surface of the control box, and the clamping sleeve can be clamped on the fixed sleeve, a clamping seat is installed on the fixed sleeve, and a clamping piece is installed on the clamping sleeve to be connected to the clamping seat.

[0014] Preferably, a positioning piece is movably installed in the card sleeve, and a ferromagnetic clamping spring is connected to the positioning piece. The positioning piece can be connected to the clamping piece, and the card seat can be used as a clamping ring for assembling a magnetic key.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The restraint device of the present invention is a chair-type physical restraint structure. Psychiatric patients can sit on the seat cushion and lean on the backrest to receive infusion in a more comfortable posture. Body straps are used to fix the patient's body. The patient's arms are placed on the armrests for infusion. The arms are fixed with arm straps. The arm straps are pulled out from the guide seat of the control box, and are tied to the patient's arms after passing through the guide frame for binding and fixation. The arm straps adopt a non-fixed structure, so they can give patients greater comfort and are more suitable for patients with mild symptoms.

[0017] 2. The arm strap of the present invention is connected to a rotating shaft provided with a spiral spring. When the patient moves his arm normally, the elastic force of the spiral spring acts on the arm strap, which can provide a certain resistance but will not affect the movement of the arm. When the patient swings his arm abnormally and quickly to struggle, the arm strap quickly escapes from the rotating shaft, causing the rotating shaft to rotate at a high speed. The latch teeth on the rotating wheel move outward, which can play a role of fixing and limiting, thereby preventing the arm strap from being too loose and affecting the safety of the patient's infusion.

[0018] 3. The control box of the present invention is provided with a ratchet bar, which can cooperate with the latch to fix the rotating wheel to prevent the arm strap from falling off, and the ratchet bar is a lifting structure. When the ratchet bar is in the lowest position under the action of the stabilizing spring, the arm strap is least likely to be stuck, and when the ratchet bar is lifted to a higher height by the screw, the arm strap is more likely to be stuck. Therefore, the height of the ratchet bar can be adjusted according to the severity of the psychiatric patient's illness, providing higher comfort for patients of different degrees. The adjustment method is to drive the screw to rotate through the control seat, and the height of the ratchet bar can also be determined by a scale.

[0019] 4. The screw rod for adjusting the height of the ratchet bar of the present invention can be protected by a protective cover structure. Usually, only medical personnel can open the protective cover structure, thereby preventing the patient himself or other people from affecting the height of the ratchet bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the first schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a second schematic diagram of the overall structure of the present invention.

[0022] Figure 3 FIG. 1 is a first schematic diagram of the arm strap structure of the present invention.

[0023] Figure 4 This is a second schematic diagram of the arm strap structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the internal structure of the control box of the present invention.

[0025] Figure 6 Schematic diagram of the internal structure of the rotating wheel of the present invention.

[0026] Figure 7 It is a schematic diagram of the protective cover structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the separation of the protective cover structure of the present invention.

[0028] Fig. 9 It is a schematic diagram of the threaded sleeve and screw structure of the present invention.

[0029] Fig.10 It is an internal schematic diagram of the card holder structure of the present invention.

[0030] In the figure: 1. bracket; 2. cushion; 3. backrest; 4. body strap; 5. first fixed seat; 6. armrest; 7. guide frame; 8. control box; 9. arm strap; 10. second fixed seat; 11. rotating shaft; 12. guide seat; 13. scroll spring; 14. positioning plate; 15. rotating wheel; 16. spring guide rod; 17. counterweight seat; 18. latching tooth; 19. guide rod; 20. slide seat; 21. stabilizing spring; 22. ratchet bar; 23. threaded sleeve; 24. screw; 25. control seat; 26. support rod; 27. positioning ring; 28. scale; 29. ​​fixing sleeve; 30. clamping sleeve; 31. clamping seat; 32. positioning piece; 33. clamping spring; 34. clamping piece; 35. magnetic key. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of 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.

[0032] See also Figures 1 to 10The present invention provides a technical solution: a restraint device for infusion of psychiatric patients, comprising a bracket 1 and an infusion seat, the infusion seat is provided with a body strap 4 that can be fixed, and an armrest 6 is fixedly installed on the bracket 1, guide frames 7 are installed on both sides of the armrest 6, and a control box 8 is fixedly installed on the bracket 1, a pull-out arm strap 9 is provided in the control box 8, and a second fixing seat 10 is fixedly installed on the infusion seat; a rotating shaft 11 is provided in the control box 8, and the arm strap 9 is limitedly wound on the rotating shaft 11, a volute spring 13 is provided on the rotating shaft 11 to provide elastic force, and a rotating wheel 15 is fixedly installed on the rotating shaft 11, A spring guide rod 16 is movably provided on the wheel 15, and a counterweight seat 17 is fixedly connected to the spring guide rod 16, and a latching tooth 18 is provided on the counterweight seat 17. A ratchet bar 22 is installed for lifting below the control box 8, and the ratchet bar 22 is located below the rotating wheel 15. A threaded sleeve 23 is installed at the bottom of the control box 8, and a screw 24 is connected in the threaded sleeve 23. The ratchet bar 22 is lifted up by the screw 24. A scale 28 for positioning the screw 24 is provided on the threaded sleeve 23, and the screw 24 can pass through a protective cover structure fixed on the control box 8. The protective cover structure is a combined structure, and the protective cover structure is unlocked by a magnetic key 35.

[0033] The infusion chair comprises a seat cushion 2 mounted on a bracket 1, a backrest 3 is mounted on the seat cushion 2, a body strap 4 is connected to the backrest 3, and a first fixing seat 5 is fixedly mounted on the seat cushion 2. The armrests 6 are symmetrically arranged on both sides of the infusion chair, and a through slot is arranged on the guide frame 7, the arm strap 9 passes through the through slot of the guide frame 7 and is connected to the second fixing seat 10, and a guide seat 12 is arranged on the control box 8, and the arm strap 9 is pulled out of the control box 8 from the guide seat 12.

[0034] The restraint device of the present invention is a chair-type physical restraint structure, and the main structure includes a bracket 1, a cushion 2 and a backrest 3. The bracket 1 is a force-bearing structure. Psychiatric patients can sit on the cushion 2 and lean on the backrest 3 to receive an infusion in a more comfortable posture. The body strap 4 is passed from the patient's shoulders to connect with the first fixing seat 5, and the body strap 4 is used to perform basic fixation of the patient's body. The body strap 4 can be directly fixed on the backrest 3, or it can be installed using the same structure as the control box 8. The patient's arm is placed on the armrest 6 for infusion, and the arm is fixed using the arm strap 9. The arm strap 9 is pulled out from the guide seat 12 of the control box 8, and is tied to the patient's arm after passing through the guide frame 7 for binding and fixation.

[0035] A limit plate is provided on the rotating shaft 11, and the arm strap 9 is wound between the two limit plates. The inner end of the spiral spring 13 is connected to the rotating shaft 11, and the outer end of the spiral spring 13 is connected to the positioning plate 14 in the control box 8. A cavity is provided in the rotating wheel 15, and a spring guide rod 16 is provided through the outer wall of the rotating wheel 15. There are 6 to 10 spring guide rods 16 arranged in an annular array on the rotating wheel 15, and a counterweight seat 17 is installed at the end of the spring guide rod 16, and a latch 18 is provided on the surface of the counterweight seat 17.

[0036] The arm strap 9 adopts a non-fixed structure, so it can provide patients with greater comfort and is more suitable for patients with mild symptoms. The arm strap 9 is connected to a rotating shaft 11 provided with a spiral spring 13. When the patient moves his arm normally, the elastic force of the spiral spring 13 acts on the arm strap 9, which can provide a certain resistance, but will not affect the movement of the arm. When the patient swings his arm abnormally and quickly to struggle, the arm strap 9 quickly escapes from the rotating shaft 11, which will cause the rotating shaft 11 to rotate at a high speed. The counterweight seat 17 on the rotating wheel 15 has a large centrifugal force, which can overcome the elastic force of the spring guide rod 16 and move outward, and send the latch teeth 18 on the counterweight seat 17 outward, which can play a role of fixing and limiting, avoiding the arm strap 9 from being too loose and affecting the safety of the patient's infusion.

[0037] A guide rod 19 is vertically installed in the control box 8, and a slide 20 is slidably installed on the guide rod 19, a ratchet bar 22 is fixedly installed on the slide 20, and the ratchet bar 22 is arranged upward, a stopper is arranged in the middle of the guide rod 19, and a stabilizing spring 21 is connected between the stopper and the slide 20. A threaded sleeve 23 is vertically arranged below the ratchet bar 22, and a screw 24 is arranged through the threaded sleeve 23, the top end of the screw 24 can be against the bottom surface of the ratchet bar 22, and a control seat 25 is fixedly installed at the bottom end of the screw 24.

[0038] The control box 8 of the present invention is provided with a ratchet bar 22, which can cooperate with the latch tooth 18 to fix the rotating wheel 15 to prevent the arm strap 9 from falling off, and the ratchet bar 22 is a lifting structure, which is installed on the guide rod 19 through the slide seat 20 and is limited by the stabilizing spring 21. When the ratchet bar 22 is in the lowest position under the action of the stabilizing spring 21, the arm strap 9 is least likely to be stuck, and when the ratchet bar 22 is lifted to a higher height by the screw rod 24, the arm strap 9 is more likely to be stuck. Therefore, the height of the ratchet bar 22 can be adjusted according to the severity of the psychiatric patient's illness. The adjustment method is to drive the screw rod 24 to rotate through the control seat 25, thereby changing the height of the ratchet bar 22.

[0039] A support rod 26 is fixedly mounted on the control seat 25 , and a positioning ring 27 is provided at the top of the support rod 26 . A scale 28 is provided on the outer wall of the threaded sleeve 23 , and the positioning ring 27 is sleeved on the outside of the threaded sleeve 23 .

[0040] The height of the ratchet bar 22 can be determined by a scale 28. A positioning ring 27 is installed on the control seat 25 through a support rod 26. The positioning ring 27 surrounds the periphery of the scale 28. Since the positioning ring 27 can indirectly reflect the height of the ratchet bar 22, its adjustment work can be indicated.

[0041] The protective sleeve structure includes a fixed sleeve 29 and a clamping sleeve 30, and the fixed sleeve 29 is installed on the bottom surface of the control box 8, and the clamping sleeve 30 can be clamped on the fixed sleeve 29, and a clamping seat 31 is installed on the fixed sleeve 29, and a clamping member 34 is installed on the clamping sleeve 30 to be connected with the clamping seat 31. A positioning member 32 is movably installed in the clamping sleeve 30, and a ferromagnetic clamping spring 33 is connected to the positioning member 32, and the positioning member 32 can be connected with the clamping member 34, and the clamping seat 31 can be a clamping ring for assembling a magnetic key 35.

[0042] In order to prevent the patient himself or other people from affecting the height of the ratchet bar 22, the screw 24 can be protected by a protective cover structure. Usually only medical staff can open the protective cover structure. The fixed sleeve 29 is installed on the control box 8. When the card sleeve 30 is engaged with the fixed sleeve 29, the screw 24 can be wrapped between the two to avoid external touch. When the card piece 34 on the card sleeve 30 is extended into the holder 31 of the fixed sleeve 29, the strong card spring 33 pushes the positioning piece 32 into the card piece 34, which can prevent the card sleeve 30 from separating from the fixed sleeve 29. When the ratchet bar 22 needs to be adjusted, the medical staff can put the magnetic key 35 they carry on the holder 31. The magnetic force of the magnetic key 35 acts on the ferromagnetic card spring 33, which can make the card spring 33 retract, and the positioning piece 32 can be separated from the card piece 34. At this time, the card sleeve 30 can be opened.

[0043] When the present invention is in use: first, the restraint device of the present invention is a chair-type physical restraint structure, and the main structure includes a bracket 1, a cushion 2 and a backrest 3. The bracket 1 is a force-bearing structure. Psychiatric patients can sit on the cushion 2 and lean on the backrest 3 to receive an infusion in a more comfortable posture. The body straps 4 are connected to the first fixing seat 5 through the patient's shoulders, and the body straps 4 are used to perform basic fixation of the patient's body. The body straps 4 can be directly fixed on the backrest 3, or the body straps 4 can be installed using the same structure as the control box 8. The patient's arms are placed on the armrests 6 for infusion, and the arms are fixed using arm straps 9. The arm straps 9 are drawn out from the guide seat 12 of the control box 8, and are tied to the patient's arms after passing through the guide frame 7. , for binding and fixing, the arm strap 9 adopts a non-fixed structure, so it can give the patient greater comfort and is more suitable for patients with mild symptoms. The arm strap 9 is connected to the rotating shaft 11 provided with a spiral spring 13. When the patient moves his arm normally, the elastic force of the spiral spring 13 acts on the arm strap 9, which can provide a certain resistance, but will not affect the movement of the arm. When the patient swings his arm abnormally and quickly to struggle, the arm strap 9 quickly escapes from the rotating shaft 11, which will cause the rotating shaft 11 to rotate at a high speed. The counterweight seat 17 on the rotating wheel 15 has a large centrifugal force, which can overcome the elastic force of the spring guide rod 16 and move outward, and send the latch teeth 18 on the counterweight seat 17 outward, which can play a role of fixing and limiting, and prevent the arm strap 9 from being too loose. In order to affect the safety of the patient's infusion, a ratchet bar 22 is provided in the control box 8 of the present invention, which can cooperate with the latch tooth 18 to fix the rotating wheel 15 to prevent the arm strap 9 from falling out, and the ratchet bar 22 is a lifting structure, which is installed on the guide rod 19 through the slide seat 20 and is limited by the stabilizing spring 21. When the ratchet bar 22 is in the lowest position under the action of the stabilizing spring 21, the arm strap 9 is least likely to be stuck, and when the ratchet bar 22 is lifted to a higher height by the screw rod 24, the arm strap 9 is more likely to be stuck. Therefore, the height of the ratchet bar 22 can be adjusted according to the severity of the psychiatric patient's illness. The adjustment method is to drive the screw rod 24 to rotate through the control seat 25, thereby changing the height of the ratchet bar 22. The height of the ratchet bar 22 can be adjusted. The height of the ratchet bar 22 can be determined by the scale 28. A positioning ring 27 is installed on the control seat 25 through the support rod 26. The positioning ring 27 surrounds the periphery of the scale 28. Since the positioning ring 27 can indirectly reflect the height of the ratchet bar 22, the adjustment work can be indicated. In order to prevent the patient himself or other people from affecting the height of the ratchet bar 22, the screw 24 can be protected by a protective cover structure. Usually only medical staff can open the protective cover structure. The fixed sleeve 29 is installed on the control box 8. When the card sleeve 30 is engaged with the fixed sleeve 29, the screw 24 can be wrapped between the two to avoid external contact. When the card piece 34 on the card sleeve 30 extends into the card seat 31 of the fixed sleeve 29, the strong card spring 33 pushes the positioning piece 32 against the card piece 34.It can prevent the card sleeve 30 from being separated from the fixing sleeve 29. When the ratchet bar 22 needs to be adjusted, the medical staff can put the magnetic key 35 they carry on the card seat 31. The magnetic force of the magnetic key acts on the ferromagnetic card spring 33, which can make the card spring 33 retract, and the positioning member 32 can be separated from the card member 34. At this time, the card sleeve 30 can be opened.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A restraint device for infusion of psychiatric patients, comprising a bracket (1) and an infusion seat, characterized in that: The infusion chair is provided with a body strap (4) that can be fixed, and the bracket (1) is fixedly mounted with an armrest (6), guide frames (7) are mounted on both sides of the armrest (6), and a control box (8) is fixedly mounted on the bracket (1), and a removable arm strap (9) is arranged in the control box (8), and a second fixing seat (10) is fixedly mounted on the infusion chair; The control box (8) is provided with a rotating shaft (11), and the arm strap (9) is limitedly wound on the rotating shaft (11), a volute spring (13) is provided on the rotating shaft (11) to provide elastic force, and a rotating wheel (15) is fixedly installed on the rotating shaft (11), a spring guide rod (16) is movably provided on the rotating wheel (15), and a counterweight seat (17) is fixedly connected to the spring guide rod (16), and a latching tooth (18) is provided on the counterweight seat (17), and a ratchet bar (22) is installed at the bottom of the control box (8) for lifting and lowering, and The ratchet bar (22) is located below the rotating wheel (15); a threaded sleeve (23) is installed at the bottom of the control box (8); a screw rod (24) is connected to the threaded sleeve (23); the ratchet bar (22) is lifted up by the screw rod (24); a scale (28) capable of positioning the screw rod (24) is provided on the threaded sleeve (23); the screw rod (24) can pass through a protective sleeve structure fixed on the control box (8); the protective sleeve structure is a combined structure, and the protective sleeve structure is unlocked by a magnetic key (35); The protective sleeve structure comprises a fixed sleeve (29) and a clamping sleeve (30), wherein the fixed sleeve (29) is mounted on the bottom surface of the control box (8), and the clamping sleeve (30) can be clamped on the fixed sleeve (29), a clamping seat (31) is mounted on the fixed sleeve (29), and a clamping piece (34) is mounted on the clamping sleeve (30) and can be connected to the clamping seat (31); A positioning piece (32) is movably mounted in the clamping sleeve (30), and a ferromagnetic clamping spring (33) is connected to the positioning piece (32). The positioning piece (32) can be connected to a clamping piece (34), and the clamping seat (31) can be used as a clamping ring for assembling a magnetic key (35).

2. A restraint device for infusion of psychiatric patients according to claim 1, characterized in that: The infusion chair comprises a seat cushion (2) mounted on a bracket (1), a backrest (3) being mounted on the seat cushion (2), the body strap (4) being connected to the backrest (3), and a first fixing seat (5) being fixedly mounted on the seat cushion (2).

3. A restraint device for infusion of psychiatric patients according to claim 1, characterized in that: The armrests (6) are symmetrically arranged on both sides of the infusion chair, and a through slot is arranged on the guide frame (7), the arm strap (9) passes through the through slot of the guide frame (7) and is connected to the second fixing seat (10), and a guide seat (12) is arranged on the control box (8), and the arm strap (9) is pulled out of the control box (8) from the guide seat (12).

4. A restraint device for infusion of psychiatric patients according to claim 1, characterized in that: A limit plate is provided on the rotating shaft (11), and the arm strap (9) is wound between the two limit plates. The inner end of the scroll spring (13) is connected to the rotating shaft (11), and the outer end of the scroll spring (13) is connected to the positioning plate (14) in the control box (8).

5. A restraint device for infusion of psychiatric patients according to claim 1, characterized in that: The rotating wheel (15) is provided with a cavity, and the spring guide rod (16) is arranged to penetrate the outer wall of the rotating wheel (15), 6 to 10 spring guide rods (16) are arranged in a circular array on the rotating wheel (15), and the counterweight seat (17) is installed at the end of the spring guide rod (16), and the latching teeth (18) are arranged on the surface of the counterweight seat (17).

6. A restraint device for infusion of psychiatric patients according to claim 1, characterized in that: A guide rod (19) is vertically mounted in the control box (8), and a slide seat (20) is slidably mounted on the guide rod (19), the ratchet bar (22) is fixedly mounted on the slide seat (20), and the ratchet bar (22) is arranged upward, a stopper is arranged in the middle of the guide rod (19), and a stabilizing spring (21) is connected between the stopper and the slide seat (20).

7. A restraint device for infusion of psychiatric patients according to claim 6, characterized in that: The threaded sleeve (23) is vertically arranged below the ratchet bar (22), and the screw rod (24) is arranged to penetrate the threaded sleeve (23), the top end of the screw rod (24) can be pressed against the bottom surface of the ratchet bar (22), and the bottom end of the screw rod (24) is fixedly mounted with a control seat (25).

8. A restraint device for infusion of psychiatric patients according to claim 7, characterized in that: A support rod (26) is fixedly mounted on the control seat (25), and a positioning ring (27) is provided at the top end of the support rod (26). The scale (28) is provided on the outer wall of the threaded sleeve (23), and the positioning ring (27) is sleeved on the outside of the threaded sleeve (23).

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