Simple shifter

Abstract

The utility model belongs to the technical field of shifters, and particularly relates to a simple shifter which comprises a U-shaped frame and an angle adjusting support, the angle adjusting support is located above the U-shaped frame, the middle of the right end of the angle adjusting support is rotationally connected with a gear, and the upper end and the lower end of the gear are in meshed transmission connection with racks. The hand crank is rotated to promote the screw rod to drive the adjusting support to slide up and down back and forth along the guide pipe, and the lower end of the angle adjusting support deflects along the upper end of the height adjusting pipe, so that the balance degree of the handrail is changed, the sponge brackets lift or lower the armpits of the human body, and the two sponge brackets sleeving the surfaces of the two supporting supports get close to or away from each other. The distance between the two sponge brackets is changed through the supporting bracket, the supporting width of the shifter to the armpit can be adjusted according to the body size, the weight degree and the left side and the right side of the chest of the human body, universality is high, the using comfort of the shifter is improved, and the practicability is high. The problems that potential safety hazards exist in the using process and using is inconvenient due to the fact that an existing shifter is unreasonable in structural layout design are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shifters, and in particular relates to a simple shifter. Background Art

[0002] A shifter is a medical auxiliary care device designed for people with limited mobility. The shifter is used to assist people with limited mobility, such as the elderly with mobility problems, people with mobility disabilities, and people with lower body paralysis, in moving when they are unable to walk independently. The shifter can be used to transfer people from a hospital bed to a wheelchair, from a wheelchair to a toilet, and other different locations, to achieve safe and convenient movement. In layman's terms, the function of the shifter is to transfer people from one place to another.

[0003] The existing shifters have the following problems: (1) The shifters on the market have many auxiliary functions, while the main function of the shifter is only to move the elderly with limited walking or the disabled from one place to another. The main function is used very frequently, and the excessive auxiliary functions are not needed in most cases. One more auxiliary function requires one more, or one more, or one more set of structures to implement, which makes the structure complicated, resulting in high cost and high selling price due to the large amount of materials used. In addition, the large amount of materials will also make the shifter itself too heavy and inconvenient to use easily, which increases the difficulty of use. Consumers have a low acceptance of the shifter, and it is difficult for consumers to popularize it; (2) The shifters on the market are not convenient for adjusting the width of the shifter's armpit support according to the body size, fatness and chest size of most consumers, but are only designed to (3) When using a shifter, if the patient is moved from one place to another at different heights, the patient needs to be lifted up and lowered during the shift. The current shifter lacks a labor-saving height adjustment structure. When adjusting the height, the caregiver needs to hold the shifter with both hands with great force to adjust the height. The adjustment process is very laborious and is affected by the patient's weight. If the patient's weight is too heavy, pressure will be applied to one end of the shifter, causing the shifter to become unbalanced, making it unsafe for the caregiver to operate. The shifter is prone to tipping over and tipping over, and it is dangerous for the patient to use the shifter. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problem that the existing shifter structure layout design is unreasonable, resulting in potential safety hazards and inconvenience in use.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a simple shifter, including a U-shaped frame and an angle adjustment bracket, wherein the angle adjustment bracket is located above the U-shaped frame:

[0006] The middle of the right end of the angle adjustment support is rotatably connected to a gear, and the upper and lower ends of the gear are meshed and connected to a rack, and the end of the rack away from the gear is fixedly connected to a telescopic tube, and a telescopic sleeve is provided on the outer surface of the telescopic tube, and the end of the telescopic tube away from the angle adjustment support is fixedly connected to the support support, and the right ends of the front and rear support supports are detachably connected to the sponge bracket.

[0007] The right end of the gear is rotatably connected to a support plate, which is fixedly connected to the right end between the upper and lower telescopic sleeves, and the front and rear sides of the left end of the support plate are fixedly connected to support brackets located in front and behind the angle adjustment bracket respectively;

[0008] The telescopic sleeve and the telescopic tube are located on the right side of the angle adjustment support, the inner end of the telescopic sleeve is fixedly connected to the surface of the angle adjustment support, the outer end of the telescopic sleeve is fixedly connected to the adjacent support surface, and the telescopic tube is slidably connected to the inner end of the adjacent telescopic sleeve;

[0009] The right end of the support plate is fixedly connected with a buffer sponge pad, and the buffer sponge pad is located at the right end between the front and rear sponge brackets.

[0010] In a preferred technical solution of the present invention, self-braking universal wheels are installed at the four corners of the lower end of the U-shaped frame.

[0011] In a better technical solution of the present invention, an armrest is fixedly connected to the upper side of the left end of the support bracket, a height adjustment rod is fixedly connected between the left ends of the two armrests, the middle of the height adjustment rod is rotatably connected to an angle adjustment tube, a guide tube is slidably connected inside the angle adjustment tube, a nut is fixedly connected to the top end of the guide tube, a screw is threadedly connected to the nut and passes through the inside between the guide tube and the angle adjustment tube, the top end of the screw passes through the top end of the angle adjustment tube, the top end of the screw is fixedly connected to a hand crank, and the top end of the screw is rotatably connected to the top end of the angle adjustment tube.

[0012] In a preferred technical solution of the present invention, a strap and a support strap are detachably connected to the upper and lower sides of the right end of the sponge bracket through locks, and a rectangular frame is inserted into the middle of the strap.

[0013] In a better technical solution of the present invention, the upper end of the U-shaped frame is fixedly connected to a height-adjusting sleeve, and the interior of the height-adjusting sleeve is slidably connected to an adjusting pipe located at the lower left of the angle adjustment support, the upper end of the adjusting pipe is rotatably connected to the middle of the left end of the angle adjustment support, and a plurality of height-adjusting holes are provided on the surface of the adjusting pipe, and the upper side of the height-adjusting sleeve is threadedly connected to a first bolt that passes through any one of the height-adjusting holes.

[0014] In a better technical solution of the present invention, the left end of the height-adjusting sleeve is fixedly connected to an extension frame, and the tops of the front and rear ends of the extension frame are slidably connected to distance-adjusting blocks, and the outer surface of the distance-adjusting block is provided with a plurality of distance-adjusting holes, and the tops of the front and rear ends of the extension frame are threadedly connected to a second bolt that penetrates into an adjacent distance-adjusting hole, and the right ends of the two distance-adjusting blocks are fixedly connected to joint pads.

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

[0016] The upper and lower racks share a gear, and the support brackets are pushed and pulled synchronously in opposite directions to drive the corresponding racks to move synchronously. The two racks move back and forth synchronously along the gears in opposite directions. The gears rotate between the angle adjustment bracket and the support plate as the racks move. The gears guide the synchronously moving racks, and the rotating gears allow the racks to move back and forth synchronously smoothly, so that the racks can drive the corresponding support brackets to move back and forth synchronously in opposite directions, so that the two sponge brackets inserted into the surfaces of the two support brackets move closer to and away from each other, so that the support brackets change the distance between the two sponge brackets. The straps and support straps reinforce the back and thighs of the person respectively between the two sponge brackets, and the width of the shifter supporting the armpits can be adjusted according to the size, fatness and chest size of the human body. It has strong versatility and improves the comfort of using the shifter.

[0017] The U-shaped frame is used to hold the extension frame and the height adjustment sleeve upward on the ground, and the height adjustment pipe supports the angle adjustment support upward inside the height adjustment sleeve. The guide pipe and the angle adjustment pipe are connected as a whole between the height adjustment rod and the height adjustment pipe to form an armrest elevation adjustment mechanism that performs linear motion and arc motion simultaneously. Turning the hand crank causes the screw to drive the adjustment to slide up and down along the guide pipe, and the lower end of the angle adjustment support is deflected along the upper end of the adjustment pipe, thereby changing the balance of the armrest, so that the armrest with changed balance will deflect the support plate, and the support support will drive the sponge bracket to deflect as the armrest deflects, so that the sponge bracket lifts or lowers the human armpit. After adjusting to the appropriate elevation angle, stop rotating the hand crank, and rely on the self-locking function of the screw thread surface to lock the angle of the armrest after adjusting the elevation angle. The lower end of the angle adjustment bracket and the upper end of the adjustment pipe form a flipping force point to keep the inclined armrest in a stable state. The nurse saves a lot of effort in lifting and lowering the patient, and it is also very safe and stable during use.

[0018] Rotating the first bolt can slide the adjustment tube up and down along the inside of the height adjustment sleeve to adjust the height of the entire shifter. Re-screwing the first bolt into the corresponding height adjustment hole can re-fix the shifter after the height adjustment, so that the shifter can maintain the adjusted height. The entire height of the shifter can be adjusted at one time according to the body height to achieve optimal comfort.

[0019] By unscrewing the second bolt, the distance adjustment block can be moved back and forth along the extension frame in front of the human knee, so that the joint pad is away from or close to the knee joint, allowing the joint pad to play a protective role on the human knee joint;

[0020] In combination with the above beneficial effects, the overall structure of the multifunctional shifter on the market has been simplified, eliminating too many unused auxiliary structures, and at the same time upgrading and optimizing the main function of human body shifting. The overall structure of this shifter is very simple. It only requires turning the hand crank and sliding the two support brackets synchronously to achieve the main functions of adjusting the distance between the two sponge brackets and the elevation angle of the two sponge brackets. It simplifies the complex functions of the existing shifter, saves materials, reduces production costs, and also reduces the selling price, which can be accepted by consumers and is conducive to the popularization and promotion of this shifter in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a left view of the overall structure of the utility model;

[0022] Figure 2 This is a right side view of the overall structure of the utility model;

[0023] Figure 3 This is a diagram showing the sponge bracket of the utility model being closed;

[0024] Figure 4 This is an expanded effect diagram of the sponge bracket of the utility model;

[0025] Figure 5 This is a rendering of the utility model of the height adjustment pipe being assembled inside the height adjustment sleeve;

[0026] Figure 6 This is a rendering of the appearance of the binding strap of the present invention;

[0027] Figure 7 This is the installation effect diagram of the screw rod of the utility model.

[0028] In the figure: 1. U-shaped frame; 2. Self-braking universal wheel; 3. Height adjustment sleeve; 4. Adjustment tube; 5. First bolt; 6. Height adjustment hole; 7. Extension frame; 8. Distance adjustment block; 801, Distance adjustment hole; 9. Second bolt; 10. Joint pad; 11. Guide tube; 12. Angle adjustment tube; 13. Nut; 14. Screw; 15. Hand crank; 16. Height adjustment rod; 17. Handrail; 18. Support bracket; 19. Sponge bracket; 20. Buffer sponge pad; 201. Support plate; 21. Support bracket; 22. Rack; 23. Gear; 24. Telescopic sleeve; 25. Telescopic tube; 26. Support belt; 27. Strap; 28. Rectangular frame; 29. ​​Angle adjustment bracket. DETAILED DESCRIPTION

[0029] See also Figure 1-7 The utility model provides a technical solution: a simple shifter, including a U-shaped frame 1 and an angle adjustment bracket 29, the angle adjustment bracket 29 is located above the U-shaped frame 1, the middle of the right end of the angle adjustment bracket 29 is rotatably connected to a gear 23, the upper and lower ends of the gear 23 are meshed and connected to a rack 22, the rack 22 is fixedly connected to the end away from the gear 23 with a telescopic tube 25, the outer surface of the telescopic tube 25 is provided with a telescopic sleeve 24, the end of the telescopic tube 25 away from the angle adjustment bracket 29 is fixedly connected to the support bracket 18, and the right ends of the front and rear support brackets 18 are detachably connected to the sponge bracket 19; the telescopic sleeve 24 and the telescopic tube 25 are located at the angle adjustment bracket 29 On the right, the inner end of the telescopic sleeve 24 is fixedly connected to the surface of the angle adjustment bracket 29, the outer end of the telescopic sleeve 24 is fixedly connected to the surface of the adjacent support bracket 21, and the telescopic tube 25 is slidably connected to the inner end of the adjacent telescopic sleeve 24; the right end of the gear 23 is rotatably connected to the support plate 201, and the support plate 201 is fixedly connected to the right end between the upper and lower telescopic sleeves 24. The front and rear sides of the left end of the support plate 201 are fixedly connected to the support brackets 21 located at the front and rear of the angle adjustment bracket 29 respectively, and the upper side of the left end of the support bracket 21 is fixedly connected to the armrest 17, and the height adjustment rod 16 is fixedly connected between the left ends of the two armrests 17. The middle of the height adjustment rod 16 is rotatably connected. Angle adjustment tube 12, the interior of the angle adjustment tube 12 is slidably connected to a guide tube 11, the top end of the guide tube 11 is fixedly connected to a nut 13, and the nut 13 is threadedly connected to a screw 14 that passes through the guide tube 11 and the angle adjustment tube 12; the right end of the support plate 201 is fixedly connected to a buffer sponge pad 20, and the buffer sponge pad 20 is located at the right end between the front and rear two sponge brackets 19, and the upper and lower sides between the right ends of the sponge brackets 19 are detachably connected with a strap 27 and a support strap 26 through a lock buckle, and a rectangular frame 28 is set in the middle of the strap 27; the U-shaped frame 1 itself is designed to be U-shaped to constitute a "hollow" structure for easy Place a wheelchair, chair or other object under the buttocks so that the patient sits on the wheelchair, chair or other object under the buttocks. The nurse allows the patient to maintain a sitting posture. The nurse pulls the two sponge brackets 19 synchronously in the direction away from the buffer sponge pad 20 so that the distance between the two sponge brackets 19 is at the maximum state. When pulling the two sponge brackets 19, the corresponding support bracket 18 is pulled to move. The support bracket 18 will simultaneously pull the corresponding two telescopic tubes 25 to slide along the corresponding telescopic sleeve 24. The telescopic sleeve 24 and the telescopic tube 25 are used in conjunction to enable the support bracket 18 to drive the sponge bracket 19 to slide smoothly.

[0030] The nurse pushes the entire shifter so that the two sponge brackets 19 are aligned with the patient's chest. The nurse pushes the entire shifter to the patient's chest so that the patient's upper body is placed between the two sponge brackets 19. The nurse asks the patient to stretch his hands and hold the armrests 17 with both hands at the same time. The upper end of the U-shaped frame 1 is fixedly connected to a height-adjusting sleeve 3, and the interior of the height-adjusting sleeve 3 is slidably connected to an adjustment tube 4 located at the lower left of the angle-adjusting support 29. The upper end of the adjustment tube 4 is rotatably connected to the middle of the left end of the angle-adjusting support 29. A plurality of height-adjusting holes 6 are provided on the surface of the adjustment tube 4. The upper side of the height-adjusting sleeve 3 is threadedly connected with a first bolt 5 that passes through the inside of any height-adjusting hole 6. By rotating the first bolt 5 and unscrewing the first bolt 5 from the adjustment tube 4, the adjustment tube 4 can be slid up and down along the inside of the height-adjusting sleeve 3. Move to adjust the height of the entire shifter. After adjusting the shifter to the required height, visually observe the position of the height-adjusting hole 6 and re-screw the first bolt 5 into the corresponding height-adjusting hole 6. The first bolt 5 limits the height-adjusting tube 4 from sliding up and down along the inside of the height-adjusting sleeve 3. The first bolt 5 is equipped with a corresponding nut. After the first bolt 5 cooperates with the nut, the shifter after height adjustment can be re-fixed to allow the shifter to maintain the adjusted height. The overall height of the shifter can be adjusted at one time according to the patient's height. When the patient is in a natural sitting position, the height between the patient's armpits relative to the ground should be consistent with the height between the two sponge brackets 19 relative to the ground. If the caregiver feels that this height is appropriate, there is no need to adjust the height of this position.

[0031] The shifter is operated by a nurse, who pushes the shifter to the place where it needs to be moved in advance, so that the U-shaped frame 1 has an "open" position and the sponge bracket 19 faces the patient. Self-braking universal wheels 2 are installed at the four corners of the lower end of the U-shaped frame 1. After the self-braking universal wheel 2 comes into contact with the ground, the brake pads inside the self-braking universal wheel 2 are closed to lock the self-braking universal wheel 2, so that the self-braking universal wheel 2 cannot rotate on the ground, so as to keep the U-shaped frame 1 stable on the ground, and keep the entire shifter stationary on the ground. The braking process of the self-braking universal wheel 2 is an existing technology, and the self-braking universal wheel 2 adopts existing products on the market. The specific braking process will not be repeated.

[0032] The nurse pushes the two sponge brackets 19 synchronously toward the buffer sponge pad 20, so that the distance between the two sponge brackets 19 gradually decreases to close to the left and right sides of the patient's chest. The two sponge brackets 19 push the corresponding support brackets 18 to move in the same direction. The support brackets 18 make the corresponding telescopic tubes 25 slide along the inside of the corresponding telescopic sleeves 24. The telescopic sleeves 24 guide the sliding telescopic tubes 25, so that the two sponge brackets 19 slide smoothly.

[0033] The nurse further accurately adjusts the distance between the two cushioning sponge pads 20 according to the left and right sides of the patient's chest. The nurse pushes and pulls the support bracket 18 back and forth in the direction away from or close to the cushioning sponge pad 20, and the two support brackets 18 move closer or farther away from each other, and the two sponge brackets 19 move closer or farther away from each other. The two support brackets 18 drive the corresponding telescopic tubes 25 to slide back and forth along the corresponding telescopic sleeves 24. The telescopic sleeves 24 guide the adjacent telescopic tubes 25. The telescopic sleeves 24 maintain the telescopic tubes 25 to slide smoothly on the same horizontal line. The rack 22 and the telescopic sleeves 24 are in a stable state. The spacing between the shrink sleeves 24 is about three centimeters, and the spacing between the rack 22 and the telescopic tube 25 is about four centimeters. The rack 22 and the telescopic tube 25 are connected in a "U" shape at one end away from the gear 23. The rack 22 slides back and forth synchronously with the adjacent telescopic tubes 25. The rack 22 slides back and forth along the surface of the support plate 201, so that the rack 22 moves. The upper and lower racks 22 share a gear 23. The gear 23 rotates as the rack 22 moves. The gear 23 rotates between the support plate 201 and the angle adjustment bracket 29, so that the rack 22 moves forward and backward. The synchronous pushing and pulling of the support bracket 18 in opposite directions drives the corresponding rack 22 to move synchronously. The two racks 22 move back and forth synchronously along the gear 23 in opposite directions. The gear 23 rotates between the angle adjustment bracket 29 and the support plate 201 as the rack 22 moves. The gear 23 guides the synchronously moving rack 22. The rotating gear 23 allows the rack 22 to move back and forth smoothly and synchronously, so that the rack 22 can drive the corresponding support bracket 18 to move back and forth synchronously in opposite directions. The upper and lower telescopic sleeves 24 are parallel to each other. The upper and lower telescopic tubes 25 are parallel to each other, and the upper and lower racks 22 always remain parallel in motion and static states, so that the two sponge holders 19 inserted into the surfaces of the two support brackets 18 are moved closer to and away from each other, and the support brackets 18 change the spacing between the two sponge holders 19, so that the two sponge holders 19 pass through the corresponding armpits of the patient respectively, and at the same time, the two sliding sponge holders 19 are fitted to the ribs above the patient's waist. The width of the armpit support provided by the shifter can be adjusted according to the body size, fatness and chest size of the human body.

[0034] The upper and lower racks 22 are respectively engaged with the upper and lower ends of the gear 23 through meshing teeth and are closely engaged with each other, and only the synchronous mutual opposite direction meshing driving of the two racks 22 can drive the gear 23 to rotate. If the force generated by pushing or pulling any one of the racks 22 is only transmitted to one side of the gear, the other rack 22 will hinder the rotation of the gear 23. The force transmitted by the rack 22 to the gear 23 in the original motion state is offset. The mechanical driving force of the synchronous mutual opposite direction meshing transmission of the upper and lower racks 22 to the upper and lower ends of the gear 23 can form the rotating force of the driving gear 23. Only when the two racks 22 move in the opposite direction at the same time can the gear 23 be driven to rotate. Only when the gear 23 rotates can the two racks 22 move smoothly in the opposite direction. Only when the two sponge brackets 19 are pushed or pulled at the same time can the distance between the two sponge brackets 19 be changed. This avoids the patient from falling on one side when he or she leans against one of the sponge brackets 19. The two sponge brackets 19 hold the patient's arm pit, improve the stability and safety of the sponge support for the chest, and avoid the whole shifter from falling down due to the side turning of the sponge bracket 19.

[0035] The binding band 27 is passed through the back of the patient, and the caregiver passes the head and tail ends of the binding band 27 through the lower part of the corresponding arm pit of the patient, uses a lock to hold between the two sponge brackets 19, and ties the head and tail ends of the binding band 27 on the surface of the corresponding sponge bracket 19. The patient presses the middle of the binding band 27 on the back, and the head and tail ends of the binding band 27 pull the corresponding two sponge brackets 19 respectively. The patient's back is close to the binding band 27 and stretches the binding band 27. The head and tail ends of the binding band 27 pull the corresponding sponge brackets 19, and the binding band 27 is passed through the rectangular frame 28 to form Figure 5 the shown winding effect. The binding band 27 is pulled along the rectangular frame 28 to the appropriate length (the principle of adjusting the length is the same as that of adjusting the length of the bra shoulder strap, and the technology of adjusting the length is prior art, so it is not described in detail), Figure 5 The head and tail edges of the binding band 27 are straightened and rubbed against and close to the rectangular frame 28. The friction between the binding band 27 and the rectangular frame 28 keeps the length of the binding band 27 after adjustment. The binding band 27 keeps the two sponge brackets 19 after adjusting the distance to be stable, so that the body between the two sponge brackets 19 is stable between the two sponge brackets 19. At the same time, the binding band 27 also makes the patient sit stably on the support band 26 between the two sponge brackets 19. The support band 26 can stably support the patient's hips, so that the patient is stable on the shifter. It has strong universality and improves the comfort of using the shifter.

[0036] The nurse passes the support belt 26 under the thighs of the patient's two feet, and uses the lock to buckle the head and tail ends of the support belt 26 to the surfaces of the corresponding two sponge brackets 19, so that the support belt 26 is firmly installed between the two sponge brackets 19. The nurse assists in lifting the patient's feet and passes them over the support belt 26, so that the undersides of the patient's two thighs are tightly attached to the upper surface of the support belt 26. The nurse moves the support belt 26 under the patient's thighs to the side close to the patient's buttocks, and lets the patient sit on the support belt 26. The support belt 26 supports the patient's thighs upward between the two sponge brackets 19, so that the patient's armpits are stably attached to the corresponding sponge brackets 19.

[0037] The strap 27 allows the sponge bracket 19 to limit the support bracket 18 from moving away from the buffer sponge pad 20, so that the support bracket 18 brings the sponge bracket 19 into close contact with the left and right sides of the patient's chest near the armpits, and the support strap 26 supports the patient between the two sponge brackets 19.

[0038] The straps 27 and the support belts 26 are used together to provide support for the patient's back and thighs. The straps 27 and the support belts 26 reinforce the patient's back and thighs between the two sponge brackets 19, thereby increasing the stability of the patient's transfer to the shifter.

[0039] The nurse places the soles of the patient's feet on the U-shaped frame 1, removes the wheelchair, chair or other objects under the patient's buttocks, and relies on the patient's weight to press the middle of the support belt 26 downward, so that the support belt 26 is straightened as a whole, thereby achieving the effect of transferring the patient to this shifter.

[0040] The left end of the height-adjusting sleeve 3 is fixedly connected to an extension frame 7, and the tops of the front and rear ends of the extension frame 7 are slidably connected to distance-adjusting blocks 8. A plurality of distance-adjusting holes 801 are provided on the outer surface of the distance-adjusting blocks 8. The tops of the front and rear ends of the extension frame 7 are threadedly connected to second bolts 9 that penetrate into the interior of an adjacent distance-adjusting hole 801. The right ends of the two distance-adjusting blocks 8 are fixedly connected to joint pads 10. By unscrewing the second bolts 9, the distance-adjusting blocks 8 can be moved back and forth along the extension frame 7 in front of the human knee, so that the joint pads 10 are away from or close to the knee joint, so that the patient's knee joint is away from the joint pads. Position the pad 10 about ten centimeters, visually observe the position of the distance adjustment hole 801, and re-screw the second bolt 9 into the corresponding distance adjustment hole 801. The second bolt 9 keeps the readjusted distance adjustment block 8 in a fixed state, so that the joint pad 10 can protect the human knee joint. On the one hand, the joint pad 10 can prevent the patient's knee joint from colliding with the extension frame 7. On the other hand, the joint pad 10 can provide a buffered vertical surface for the patient's knee joint during movement, so as to improve the comfort of the knee joint. If the position of the joint pad 10 is appropriate, no adjustment is required.

[0041] The extension frame 7 and the height adjustment sleeve 3 are kept lifted upward on the ground by the U-shaped frame 1, and the height adjustment tube 4 supports the angle adjustment support 29 upward inside the height adjustment sleeve 3. The lower end of the guide tube 11 uses the height adjustment tube 4 as a rotation force support point, and the upper end of the angle adjustment tube 12 uses the height adjustment rod 16 as a rotation force support point. The guide tube 11 and the angle adjustment tube 12 are connected as a whole between the height adjustment rod 16 and the height adjustment tube 4 to form an armrest 17 elevation adjustment mechanism that performs linear motion and arc motion synchronously. The top of the screw rod 14 passes through the top of the angle adjustment tube 12. The top of the screw rod 14 is fixedly connected to the hand crank 15. The top of the screw rod 14 is rotatably connected to the top of the angle adjustment tube 12. Rotating the hand crank 15 causes the screw rod 14 to rotate along the nut 13. The screw rod 14 and the nut 13 perform threaded transmission movement. Due to the nut 1 3 is a fixed state, and the screw 14 forms a moving state relative to the nut 13, relying on the threaded transmission cooperation between the screw 14 and the nut 13 to prompt the screw 14 to move up and down along the nut 13, and the screw 14 drives the angle adjustment tube 12 to slide up and down along the outer surface of the wire tube while rotating. The angle adjustment tube 12 and the guide tube 11 are tilted at the same time, and the lower end of the guide tube 11 rotates along the adjustment tube 4, and the upper end of the angle adjustment tube 12 rotates along the height adjustment rod 16, and the height of the height adjustment rod 16 changes. The height adjustment rod 16 prompts the armrest 17 to move synchronously, and the two armrests 17 change the tilt angle of the support plate 201 as the height of the height adjustment rod 16 changes. The support plate 201 prompts the lower end of the angle adjustment support 29 to flip along the upper end of the adjustment tube 4, and the lower end of the angle adjustment support 29 rotates along the adjustment tube 4 is deflected, the elevation angle of the adjustment tube 4 changes, the sponge bracket 19 and the buffer sponge pad 20 will also tilt synchronously with the tilt of the support plate 201, the angle adjustment bracket 29 forms a balance structure for the armrest 17 and the sponge bracket 19, the armrest 17 and the sponge bracket 19 will deflect synchronously with the tilt of the angle adjustment bracket 29, thereby changing the balance of the armrest 17, so that the armrest 17 with changed balance will deflect the support plate 201, the support bracket 18 will drive the sponge bracket 19 to deflect as the armrest 17 deflects, and the sponge bracket 19 will lift or lower the patient's armpit according to the change in the elevation angle of the sponge bracket 19. When the sponge bracket 19 is tilted upward and higher than the height of the armrest 17, the patient can be lifted from the armpit. Conversely, when the sponge bracket 19 is lowered, the patient can be lifted from the armpit. The patient is lowered by the armpit to adjust the height of the patient. After the patient is moved to the appropriate height, the hand crank 15 is stopped from rotating. The self-locking function of the thread on the surface of the screw 14 is used to lock the angle of the armrest 17 after the elevation angle is adjusted. The lower end of the angle adjustment support 29 and the upper end of the height adjustment tube 4 form a flipping force point to keep the tilted armrest 17 in a stable state. The angle adjustment tube 12 makes a linear motion when sliding along the guide tube 11. When the lower end of the angle adjustment support 19 and the upper end of the height adjustment tube 4 flip, the angle adjustment tube 12 and the guide tube 11 make an arc motion between the height adjustment tube 4 and the height adjustment rod 16 at the same time. The two motion states of linear motion and arc motion coexist. The linear motion is performed first, and then the arc motion is performed. The caregiver saves a lot of effort in lifting and lowering the patient.At the same time, it is also very safe and stable during use.

[0042] The nurse unlocks the brake pads of the self-braking universal wheel 2 and allows the self-braking universal wheel 2 to rotate on the ground again. The nurse pushes the shifter to transfer the patient from one place to another. After transferring the patient to the destination, the nurse can transfer the patient out of the shifter by following the above steps in reverse. By using the shifter, the nurse can easily transfer the patient's position, reducing the labor intensity of the nurse's medical care work for the patient.

[0043] In combination with the above beneficial effects, the overall structure of the multifunctional shifter on the market has been simplified, eliminating too many unused auxiliary structures, and at the same time upgrading and optimizing the main function of human body displacement. The overall structure of this shifter is very simple. It only needs to rotate the hand crank 15 and slide the two support brackets 18 synchronously to achieve the main functions of adjusting the distance between the two sponge brackets 19 and the elevation angle of the two sponge brackets 19. It simplifies the complex functions of the existing shifter, saves materials, reduces production costs, and reduces sales prices, which can be accepted by consumers and is conducive to the popularization and promotion of this shifter in the market.

Claims

1. A simple shifter, comprising a U-shaped frame (1) and an angle adjustment bracket (29), wherein the angle adjustment bracket (29) is located above the U-shaped frame (1), and is characterized in that: The middle of the right end of the angle adjustment support (29) is rotatably connected to a gear (23), and the upper and lower ends of the gear (23) are meshed and connected to a rack (22), and the end of the rack (22) away from the gear (23) is fixedly connected to a telescopic tube (25), and the outer surface of the telescopic tube (25) is provided with a telescopic sleeve (24), and the end of the telescopic tube (25) away from the angle adjustment support (29) is fixedly connected to a support support (18), and the outer surfaces of the right ends of the front and rear support supports (18) are detachably connected to sponge brackets (19); The right end of the gear (23) is rotatably connected to a support plate (201), the support plate (201) is fixedly connected to the right end between the upper and lower telescopic sleeves (24), and the front and rear sides of the left end of the support plate (201) are fixedly connected to support brackets (21) located at the front and rear sides of the angle adjustment bracket (29) respectively; The telescopic sleeve (24) and the telescopic tube (25) are located on the right side of the angle adjustment bracket (29), the inner end of the telescopic sleeve (24) is fixedly connected to the surface of the angle adjustment bracket (29), the outer end of the telescopic sleeve (24) is fixedly connected to the surface of the adjacent support bracket (21), and the telescopic tube (25) is slidably connected to the inner end of the adjacent telescopic sleeve (24); The right end of the support plate (201) is fixedly connected to a buffer sponge pad (20), and the buffer sponge pad (20) is located at the right end between the front and rear sponge brackets (19).

2. A simple shifter according to claim 1, characterized in that: Self-braking universal wheels (2) are installed at the four corners of the lower end of the U-shaped frame (1).

3. A simple shifter according to claim 1, characterized in that: The upper side of the left end of the support bracket (21) is fixedly connected to an armrest (17), and a height adjustment rod (16) is fixedly connected between the left ends of the two armrests (17). The middle of the height adjustment rod (16) is rotatably connected to an angle adjustment tube (12), and the interior of the angle adjustment tube (12) is slidably connected to a guide tube (11). The top end of the guide tube (11) is fixedly connected to a nut (13), and the interior of the nut (13) is threadedly connected to a screw rod (14) that passes through the interior between the guide tube (11) and the angle adjustment tube (12). The top end of the screw rod (14) passes through the top end of the angle adjustment tube (12), and the top end of the screw rod (14) is fixedly connected to a hand crank (15). The top end of the screw rod (14) is rotatably connected to the top end of the angle adjustment tube (12).

4. The simple shifter according to claim 1, characterized in that: The upper and lower sides of the right end of the sponge bracket (19) are detachably connected with a strap (27) and a support strap (26) through lock buckles, and a rectangular frame (28) is set in the middle of the strap (27).

5. The simple shifter according to claim 1, characterized in that: The upper end of the U-shaped frame (1) is fixedly connected to a height adjustment sleeve (3), and the interior of the height adjustment sleeve (3) is slidably connected to an adjustment tube (4) located at the lower left of the angle adjustment support (29). The upper end of the adjustment tube (4) is rotatably connected to the middle of the left end of the angle adjustment support (29). The outer surface of the adjustment tube (4) is provided with a plurality of height adjustment holes (6), and the upper side of the height adjustment sleeve (3) is threadedly connected to a first bolt (5) that passes through the interior of any one of the height adjustment holes (6).

6. A simple shifter according to claim 5, characterized in that: The left end of the height-adjusting sleeve (3) is fixedly connected to an extension frame (7), and the tops of both front and rear ends of the extension frame (7) are slidably connected to distance-adjusting blocks (8), and the outer surface of the distance-adjusting blocks (8) is provided with a plurality of distance-adjusting holes (801). The tops of both front and rear ends of the extension frame (7) are threadedly connected to a second bolt (9) penetrating into an adjacent distance-adjusting hole (801), and the right ends of the two distance-adjusting blocks (8) are fixedly connected to a joint protection pad (10).

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