CN110812067A

CN110812067A - Medical supplementary rack of changing dressings

Info

Publication number: CN110812067A
Application number: CN201911141793.8A
Authority: CN
Inventors: 井鸿雁; 赵冬; 王薇
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-02-21
Anticipated expiration: 2039-11-20
Also published as: CN110812067B

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a medical dressing change auxiliary rack which comprises a base and a bearing block, wherein a thread groove and a thread column are formed in the bearing block; the screw-thread column top is connected with the mounting column, the top of the mounting column is provided with a groove, the inner wall of the groove is matched with a roller in a rolling manner, the roller is hinged on the surface of the sliding block, a first rotating shaft penetrates through the groove and the sliding block, the surface of the sliding block is provided with a support frame, the top of the support frame is provided with a lifting frame, the top of the mounting column is provided with two support plates, oil cylinders are arranged on the bottom surfaces of the two support plates, the outer surface of the sliding block is provided with two support plates, the surfaces of the two support plates are provided with piston rods, the end parts of the piston rods are provided with pistons in sliding fit with the inner side walls of the oil cylinders, a channel for communicating the two oil cylinders is arranged in the mounting column, the top of the mounting column is provided with screws, and the.

Description

Medical supplementary rack of changing dressings

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical dressing change auxiliary rack.

Background

When changing the dressing for the patient with injured limbs clinically, the affected limb of the patient needs to be lifted up. In the traditional dressing change mode, a nurse lifts the affected limb of a patient manually and keeps the lifting state still. Lifting the affected limb for a long time can cause the physical consumption of nurses to be very large, even a plurality of nurses are needed to rotate, the affected limb cannot be ensured to be in a stable state, and the quality of disinfection, dressing change and wrapping is influenced.

The Chinese utility model patent with application number CN201120383696.2 shows a dressing change auxiliary frame for a surgical ward, which structurally comprises a mounting plate, a guide rail, a sliding sleeve and an arc-shaped bracket, wherein the guide rail is arranged on the mounting plate, the sliding sleeve capable of freely sliding is arranged on the guide rail, a small driving motor is arranged above the sliding sleeve, and a signal processor is arranged on the side surface of the small driving motor; the rope sheave is installed to the sliding sleeve below, and the winding has the haulage rope on the rope sheave, and the bottom of haulage rope is hung there is the arc bracket. Adopt above-mentioned surgery ward auxiliary frame of changing dressings to lift patient's affected limb, compare medical personnel's manual work and lift, reduced medical personnel's intensity of labour, improved medical personnel's work efficiency. However, in the actual process of changing the dressing for the affected limb of the patient, the following problems still exist when the dressing change auxiliary frame in the surgical ward or other similar dressing change auxiliary frames in the prior art are adopted to lift the affected limb of the patient: (1) a plurality of wounds often exist on the affected limb of a patient, the positions of the wounds are different, and the lifting height of the affected limb needs to be increased or reduced when the dressing change is carried out on different wounds; when the height of the bracket changes, the contact area between the surface of the bracket and the affected limb is inevitably reduced, the local pressure of the bracket on the affected limb is increased, the lifting stability is influenced, and the discomfort of a patient is caused; (2) need remove the auxiliary frame that changes dressings when changing dressings to different wound on the affected limb, remove the unstable state that the auxiliary frame that changes dressings in-process changed dressings and can produce the slope, in order to keep the stability of affected limb, need medical personnel to lift patient's affected limb, it is comparatively troublesome to operate.

Disclosure of Invention

Technical problem to be solved

The invention provides a medical dressing change auxiliary rack, aiming at solving the following problems when the dressing change auxiliary rack in the prior art is adopted to lift the affected limb of a patient: (1) a plurality of wounds often exist on the affected limb of a patient, the positions of the wounds are different, and the lifting height of the affected limb needs to be increased or reduced when the dressing change is carried out on different wounds; when the height of the bracket changes, the contact area between the surface of the bracket and the affected limb is inevitably reduced, the local pressure of the bracket on the affected limb is increased, the lifting stability is influenced, and the discomfort of a patient is caused; (2) need remove the auxiliary frame that changes dressings when changing dressings to different wound on the affected limb, remove the unstable state that the auxiliary frame that changes dressings in-process changed dressings and can produce the slope, in order to keep the stability of affected limb, need medical personnel to lift patient's affected limb, it is comparatively troublesome to operate.

(II) technical scheme

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a medical supplementary rack of changing dressings, includes the base, and the vertical fixed mounting of upper surface of base has columniform bearing block. The top surface of the bearing block is a horizontal plane and is vertically provided with a thread groove, and a thread column is matched with the inner thread of the thread groove. The top of the threaded column is vertically and fixedly connected with a mounting column, and a semi-cylindrical groove is formed in the top of the mounting column. The axis of the groove is in a horizontal state, the inner wall of the groove is matched with the roller in a rolling mode, and the axis of the roller is parallel to the axis of the groove. The groove is matched with a cylindrical sliding block in a rotating mode, the roller is hinged to the surface of the sliding block, and the axis of the roller is parallel to the axis of the sliding block. The end face of the sliding block and the end face of the groove are in the same vertical plane. The first rotating shaft horizontally penetrates through the groove and the sliding block, and the axis of the first rotating shaft is overlapped with the axis of the sliding block. The vertical fixed mounting in surface top of slider has the support frame, and the top level fixed mounting of support frame has the frame of lifting. The length direction of the lifting frame is perpendicular to the axes of the first rotating shaft and the sliding block. The mounting column is rotated to drive the threaded column to rotate, so that the heights of the mounting column, the supporting frame and the lifting frame are adjusted, and the affected limb is lifted and then placed on the upper surface of the lifting frame. The lifting frame is rotated to drive the sliding block to rotate around the first rotating shaft in the groove, so that the angle of the lifting frame is adjusted, and the upper surface of the lifting frame is completely attached to the affected limb. In the rotating process of the sliding block, the roller and the inner wall of the groove are in a rolling friction state, so that the friction force between the sliding block and the inner wall of the groove is reduced, and the stability of the lifting frame is improved;

the top of erection column lies in the edge level fixed mounting of recess and has first backup pad and second backup pad. The bottom surface of the first supporting plate is fixedly provided with a first oil cylinder matched with the inner wall of the groove, and the bottom surface of the second supporting plate is fixedly provided with a second oil cylinder matched with the inner wall of the groove. The openings of the first oil cylinder and the second oil cylinder are downward. And a third supporting plate and a fourth supporting plate are fixedly arranged on the outer surface of the sliding block. And a first piston rod and a second piston rod are fixedly arranged on the surfaces of the third supporting plate and the fourth supporting plate. The end part of the first piston rod is fixedly provided with a first piston in sliding fit with the inner side wall of the first oil cylinder, and the end part of the second piston rod is fixedly provided with a second piston in sliding fit with the inner side wall of the second oil cylinder. Through holes are formed in the side walls of the first oil cylinder and the second oil cylinder. A first channel which is communicated with the first oil cylinder and the second oil cylinder through a through hole is formed in the mounting column. The top of the mounting column is vertically penetrated with a screw, and the mounting column is in threaded fit with the screw. The bottom of the screw is fixedly connected with a sealing block matched with the inner surface of the first channel. The first oil cylinder, the second oil cylinder and the first channel are filled with hydraulic oil. The screw is rotated before rotating the slider to promote sealed piece, make sealed piece not play sealed effect to first passageway. In the rotation process of the sliding block, the third supporting plate and the fourth supporting plate are driven to rotate, so that the first piston and the second piston are driven to slide along the inner side walls of the first oil cylinder and the second oil cylinder through the first piston rod and the second piston rod. After the angle of the lifting frame is adjusted, the screw is rotated to reduce the height of the sealing block until the sealing block completely seals the first channel, and the positions of the first piston and the second piston in the first oil cylinder and the second oil cylinder are kept stable, so that the rotation of the sliding block is limited, and the angle of the lifting frame is ensured not to be changed;

as a preferable technical scheme of the invention, the top surface of the bearing block is provided with an annular sliding groove around the thread groove. The annular chute is matched with a mounting ring in a rotating mode, and a first threaded pipe and a second threaded pipe are horizontally and vertically fixedly mounted on the upper surface of the mounting ring. The first threaded pipe and the second threaded pipe are internally matched with a first screw and a second screw, and the tops of the first screw and the second screw are rotatably provided with a first limiting sleeve and a second limiting sleeve. A horizontal through groove is formed in the threaded column, and a horizontal limiting rod is arranged in the through groove, the first limiting sleeve and the second limiting sleeve in a sliding fit mode. The first screw rod and the second screw rod are rotated, and the heights of the first limiting sleeve and the second limiting sleeve are adjusted, so that the first limiting sleeve, the second limiting sleeve and the through groove correspond to each other in the vertical direction. The mounting ring, the first limiting sleeve and the second limiting sleeve are rotated, so that the first limiting sleeve, the second limiting sleeve and the through groove correspond to each other in the horizontal direction. The limiting rod is inserted into the first limiting sleeve, the second limiting sleeve and the through groove. The limiting rod has a limiting effect on the horizontal position and the vertical position of the threaded column and the mounting column, so that the stability of the lifting frame is ensured;

according to a preferable technical scheme of the invention, a strip-shaped sliding groove is horizontally arranged in the base, a push-pull rod is vertically and slidably matched in the strip-shaped sliding groove, and push-pull handles positioned outside the base are fixedly arranged at two ends of the push-pull rod. A third oil cylinder with an upward opening is vertically and fixedly arranged in the base. The mounting groove has been seted up to the bottom surface of base, and fixed mounting has the fourth hydro-cylinder that the opening is decurrent in the mounting groove. A second channel communicated with the third oil cylinder and the fourth oil cylinder is formed in the base. And a third piston rod is vertically and fixedly installed at the bottom of the push-pull rod, and a third piston in sliding fit with the inner side wall of the third oil cylinder is fixedly installed at the bottom of the third piston rod. The inner side wall of the fourth oil cylinder is in sliding fit with a fourth piston, and a fourth piston rod is vertically and fixedly mounted on the bottom surface of the fourth piston. The bottom of the fourth piston rod is hinged with a roller. When the fourth piston is positioned at the highest point in the fourth oil cylinder, the roller is completely positioned in the mounting groove. The outer side wall of the base is horizontally hinged with a limiting block, and when the push-pull rod is located at the lowest point in the strip-shaped chute, the top of the push-pull rod and the bottom of the limiting block are located on the same horizontal plane. The third oil cylinder, the fourth oil cylinder and the second channel are filled with hydraulic oil. Before the auxiliary medicine changing rack is moved, the push-pull rod is pushed downwards through the push-pull handle, and the third piston rod and the third piston are driven by the push-pull rod to move downwards along the third oil cylinder. And the hydraulic oil pushes the fourth piston, the fourth piston rod and the roller to move downwards after being extruded. When the gyro wheel stretches out mounting groove and ground contact, when the base was lifted promptly, rotated the stopper and made stopper bottom conflict at the push-and-pull rod top, played limiting displacement to the push-and-pull rod to make the gyro wheel position in vertical side stable, remove the supplementary rack of changing dressings again can. After the position of the dressing change auxiliary rack is moved, the limiting block is rotated to separate the limiting block from the push-pull rod. The base is lowered under the action of gravity to drive the fourth oil cylinder to descend, and the hydraulic oil pushes the third piston, the third piston rod and the push-pull rod to ascend under the pressure of the fourth piston until the roller completely enters the mounting groove, namely the bottom surface of the base contacts the ground;

as a preferred technical scheme of the invention, the lifting frame is made of rubber, and can be contracted and expanded according to the sizes of different parts on the affected limb in the moving process of the lifting frame, so that the lifting frame and the affected limb are ensured to be in a close fit state. The upper surface of the lifting frame is matched with a plurality of balls in a rotating way. The support frame removes the in-process, is in the rolling friction state between the upper surface of support frame and the affected limb, has reduced the frictional force between the upper surface of support frame and the affected limb, has improved patient's comfort level.

(III) advantageous effects

The invention has the following beneficial effects:

(1) when the medical dressing change auxiliary rack is used for lifting the affected limb of the patient, the angle of the lifting frame can be automatically adjusted according to different heights of the lifting frame, so that the upper surface of the lifting frame is always tightly attached to the affected limb, the contact area between the upper surface of the lifting frame and the affected limb is ensured to be unchanged, the lifting stability is improved, and the comfort level of the patient is also improved.

(2) The bottom of the medical dressing change auxiliary rack is provided with the roller capable of stretching up and down, so that when dressing change is carried out on different wounds on a diseased limb, the bottom of the auxiliary rack is lifted by stretching the roller, and then the dressing change auxiliary rack is directly pushed; after transposition is completed, only the roller needs to be shortened, and the bottom of the auxiliary rack is completely contacted with the ground; the whole transposition in-process auxiliary rack is in stable state all the time, and the lifting frame keeps stable lifting state to the affected limb of the patient all the time, and does not need the manual work of medical personnel to lift the affected limb, convenient operation.

(3) The medical dressing change auxiliary rack is provided with the limiting rod with the adjustable height, which horizontally penetrates through the threaded column, and the limiting rod ensures that the mounting column is kept in a stable state in the vertical and horizontal directions, so that the stability of the lifting rack in lifting the affected limb is improved, and the dressing change efficiency is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of a medical dressing assist stand according to an embodiment of the present invention;

FIG. 2 is a side view of a medical dressing assist stand according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view at a in one embodiment of the present invention.

In the figure: 1-base, 2-bearing block, 3-thread groove, 4-thread column, 5-mounting column, 6-groove, 7-roller, 8-slide block, 9-first rotating shaft, 10-support frame, 11-lifting frame, 12-first support plate, 13-second support plate, 14-first oil cylinder, 15-second oil cylinder, 16-third support plate, 17-fourth support plate, 18-first piston rod, 19-second piston rod, 20-first piston, 21-second piston, 22-through hole, 23-first channel, 24-screw, 25-sealing block, 26-annular sliding groove, 27-mounting ring, 28-first thread pipe, 29-second thread pipe, 30-first screw rod, 31-a second screw rod, 32-a first limiting sleeve, 33-a second limiting sleeve, 34-a through groove, 35-a limiting rod, 36-a strip-shaped sliding groove, 37-a push-pull rod, 38-a push-pull handle, 39-a third oil cylinder, 40-a mounting groove, 41-a fourth oil cylinder, 42-a second channel, 43-a third piston rod, 44-a third piston, 45-a fourth piston, 46-a fourth piston rod, 47-a roller, 48-a limiting block and 49-a ball.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 3, the present embodiment provides a medical dressing change auxiliary table, which includes a base 1, and a cylindrical supporting block 2 is vertically and fixedly mounted on the upper surface of the base 1. The top surface of the bearing block 2 is a horizontal plane and is vertically provided with a thread groove 3, and a thread column 4 is matched with the inner thread of the thread groove 3. The top of the threaded column 4 is vertically and fixedly connected with a mounting column 5, and the top of the mounting column 5 is provided with a semi-cylindrical groove 6. The axis of the groove 6 is in a horizontal state, the inner wall of the groove 6 is matched with the roller 7 in a rolling way, and the axis of the roller 7 is parallel to the axis of the groove 6. A cylindrical sliding block 8 is rotationally matched in the groove 6, the roller 7 is hinged on the surface of the sliding block 8, and the axis of the roller 7 is parallel to the axis of the sliding block 8. The end surface of the slide block 8 and the end surface of the groove 6 are in the same vertical plane. The first rotating shaft 9 horizontally penetrates through the groove 6 and the sliding block 8, and the axis of the first rotating shaft 9 is overlapped with the axis of the sliding block 8. The top of the outer surface of the sliding block 8 is vertically and fixedly provided with a supporting frame 10, and the top of the supporting frame 10 is horizontally and fixedly provided with a lifting frame 11. The length direction of the lifting frame 11 is perpendicular to the axes of the first rotating shaft 9 and the sliding block 8. The mounting column 5 is rotated to drive the threaded column 4 to rotate, so that the heights of the mounting column 5, the support frame 10 and the lifting frame 11 are adjusted, and the affected limb is lifted and then placed on the upper surface of the lifting frame 11. The lifting frame 11 is rotated to drive the sliding block 8 to rotate around the first rotating shaft 9 in the groove 6, so that the angle of the lifting frame 11 is adjusted, and the upper surface of the lifting frame 11 is completely attached to the affected limb. In the rotating process of the sliding block 8, the roller 7 and the inner wall of the groove 6 are in a rolling friction state, so that the friction force between the sliding block 8 and the inner wall of the groove 6 is reduced, and the stability of the lifting frame 11 is improved.

The top of the mounting column 5 is horizontally and fixedly provided with a first support plate 12 and a second support plate 13 at the edge of the groove 6. A first oil cylinder 14 matched with the inner wall of the groove 6 is fixedly arranged on the bottom surface of the first supporting plate 12, and a second oil cylinder 15 matched with the inner wall of the groove 6 is fixedly arranged on the bottom surface of the second supporting plate 13. The first cylinder 14 and the second cylinder 15 are opened downward. A third support plate 16 and a fourth support plate 17 are fixedly mounted on the outer surface of the slider 8. A first piston rod 18 and a second piston rod 19 are fixedly mounted on the surfaces of the third support plate 16 and the fourth support plate 17. The end of the first piston rod 18 is fixedly provided with a first piston 20 which is in sliding fit with the inner side wall of the first oil cylinder 14, and the end of the second piston rod 19 is fixedly provided with a second piston 21 which is in sliding fit with the inner side wall of the second oil cylinder 15. The side walls of the first oil cylinder 14 and the second oil cylinder 15 are provided with through holes 22. The mounting column inner 5 is provided with a first channel 23 which is communicated with the first oil cylinder 14 and the second oil cylinder 15 through a through hole 22. The top of the mounting column 5 is vertically penetrated with a screw 24, and the mounting column 5 is in threaded fit with the screw 24. The bottom of the screw 24 is fixedly connected with a sealing block 25 which is matched with the inner surface of the first channel 23. The first cylinder 14, the second cylinder 15, and the first passage 23 are filled with hydraulic oil. Before turning the slide 8, the screw 24 is rotated, thereby lifting the sealing block 25, so that the sealing block 25 does not seal the first channel 23. During the rotation of the slide block 8, the third support plate 16 and the fourth support plate 17 are driven to rotate, so that the first piston 20 and the second piston 21 are driven to slide along the inner side walls of the first oil cylinder 14 and the second oil cylinder 15 through the first piston rod 18 and the second piston rod 19. After the angle adjustment of the lifting frame 11 is completed, the screw 24 is rotated to lower the sealing block 25, the sealing block 25 plays a sealing role on the first channel 23, and the positions of the first piston 20 and the second piston 21 in the first oil cylinder 14 and the second oil cylinder 15 are kept stable, so that the rotation of the sliding block 8 is limited, and the angle of the lifting frame 11 is ensured not to be changed.

In this embodiment, the top surface of the support block 2 is opened with an annular sliding groove 26 around the threaded groove 3. A mounting ring 27 is rotatably fitted in the annular slide groove 26, and a first threaded pipe 28 and a second threaded pipe 29 are fixedly mounted horizontally and vertically on the upper surface of the mounting ring 27. The first threaded pipe 28 and the second threaded pipe 29 are internally provided with a first screw 30 and a second screw 31, and the tops of the first screw 30 and the second screw 31 are rotatably provided with a first stop collar 32 and a second stop collar 33. A horizontal through groove 34 is formed in the threaded column 4, and a horizontal limiting rod 35 is in sliding fit with the through groove 34, the first limiting sleeve 32 and the second limiting sleeve 33. The first screw 30 and the second screw 31 are rotated to adjust the heights of the first stop collar 32 and the second stop collar 33, so that the positions of the first stop collar 32, the second stop collar 33 and the through groove 34 in the vertical direction correspond. The mounting ring 27, the first stop collar 32 and the second stop collar 33 are rotated so that the positions of the first stop collar 32, the second stop collar 33 and the through groove 34 in the horizontal direction correspond. The limiting rod 35 is inserted into the first limiting sleeve 32, the second limiting sleeve 33 and the through groove 34. The limiting rod 35 limits the horizontal position and the vertical position of the threaded column 4 and the mounting column 5, so that the stability of the lifting frame 11 is ensured.

In this embodiment, a strip-shaped sliding groove 36 is horizontally arranged in the base 1, a push-pull rod 37 is vertically and slidably fitted in the strip-shaped sliding groove 36, and push-pull handles 38 located outside the base 1 are fixedly mounted at two ends of the push-pull rod 37. A third oil cylinder 39 with an upward opening is vertically and fixedly arranged in the base 1. The bottom surface of the base 1 is provided with an installation groove 40, and a fourth oil cylinder 41 with a downward opening is fixedly installed in the installation groove 40. A second channel 42 for communicating the third oil cylinder 39 and the fourth oil cylinder 41 is formed in the base 1. A third piston rod 43 is vertically and fixedly mounted at the bottom of the push-pull rod 37, and a third piston 44 in sliding fit with the inner side wall of the third oil cylinder 39 is fixedly mounted at the bottom of the third piston rod 43. The inner side wall of the fourth oil cylinder 41 is in sliding fit with a fourth piston 45, and a fourth piston rod 46 is vertically and fixedly mounted on the bottom surface of the fourth piston 45. The bottom of the fourth piston rod 46 is hinged with a roller 47. When the fourth piston 45 is at the highest point in the fourth cylinder 41, the roller 47 is completely located in the mounting groove 40. The outer side wall of the base 1 is horizontally hinged with a limiting block 48, and when the push-pull rod 37 is located at the lowest point in the strip-shaped chute 36, the top of the push-pull rod 37 and the bottom of the limiting block 48 are located on the same horizontal plane. The third cylinder 39, the fourth cylinder 41, and the second passage 42 are filled with hydraulic oil. Before the auxiliary medicine changing rack is moved, the push-pull rod 37 is pushed downwards by the push-pull handle 38, and the third piston rod 43 and the third piston 44 are driven by the push-pull rod 37 to move downwards along the third oil cylinder 39. The hydraulic oil is squeezed to push the fourth piston 45, the fourth piston rod 46 and the roller 47 to move downward. When the roller 47 extends out of the mounting groove 40 to contact with the ground, that is, the base 1 is lifted, the limiting block 48 is rotated to enable the bottom of the limiting block 48 to abut against the top of the push-pull rod 37, the push-pull rod 37 is limited, the position of the roller 47 in the vertical direction is enabled to be stable, and then the medicine changing auxiliary rack is moved. After the position of the dressing change assist table is moved, the stopper 48 is rotated to separate the stopper 48 from the push-pull rod 37. The base 1 is lowered under the action of gravity to drive the fourth oil cylinder 41 to descend, and the hydraulic oil pushes the third piston 44, the third piston rod 43 and the push-pull rod 37 to ascend under the pressure of the fourth piston 45 until the roller 47 completely enters the installation groove 40, namely the bottom surface of the base 1 contacts the ground.

In this embodiment, the lifting frame 11 is made of rubber, and the lifting frame 11 can be adjusted to be contracted and opened according to the sizes of different parts of the affected limb during the moving process, so as to ensure that the lifting frame 11 and the affected limb are in a close fit state. The upper surface of the lifting frame 11 is rotatably fitted with a plurality of balls 49. In the moving process of the lifting frame 11, the upper surface of the lifting frame 11 and the affected limb are in a rolling friction state, so that the friction force between the upper surface of the lifting frame 11 and the affected limb is reduced, and the comfort of a patient is improved.

The specific operation method of the embodiment is as follows:

the mounting column 5 is rotated to drive the threaded column 4 to rotate, so that the heights of the mounting column 5, the support frame 10 and the lifting frame 11 are adjusted, and the affected limb is lifted and then placed on the upper surface of the lifting frame 11. The screw 24 is rotated to lift the sealing block 25 so that the sealing block 25 does not seal against the first channel 23. The lifting frame 11 is rotated to drive the sliding block 8 to rotate around the first rotating shaft 9 in the groove 6, so that the angle of the lifting frame 11 is adjusted, and the upper surface of the lifting frame 11 is completely attached to the affected limb. During the rotation of the slide block 8, the third support plate 16 and the fourth support plate 17 are driven to rotate, so that the first piston 20 and the second piston 21 are driven to slide along the inner side walls of the first oil cylinder 14 and the second oil cylinder 15 through the first piston rod 18 and the second piston rod 19. After the angular adjustment of the lifting frame 11 is completed, the screw 24 is rotated to lower the height of the sealing block 25 until the sealing block 25 completely seals the first passage 23.

Before moving the auxiliary stand for changing dressings, the push-pull rod 37 is pushed downwards through the push-pull handle 38 until the roller 47 extends out of the mounting groove 40 to be contacted with the ground, namely when the base 1 is lifted, the limiting block 48 is rotated to enable the bottom of the limiting block 48 to abut against the top of the push-pull rod 37, and then the auxiliary stand for changing dressings is moved. After the position of the dressing change assist table is moved, the stopper 48 is rotated to separate the stopper 48 from the push-pull rod 37. The base 1 is lowered under the action of gravity until the bottom surface of the base 1 contacts the ground.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a medical supplementary rack of changing dressings which characterized in that: the medical dressing change auxiliary rack comprises a base (1), a cylindrical bearing block (2) is vertically and fixedly installed on the upper surface of the base (1), a thread groove (3) is vertically formed in the top surface of the bearing block (2) in a horizontal plane, a thread column (4) is matched with the inner thread of the thread groove (3), a mounting column (5) is vertically and fixedly connected to the top of the thread column (4), a semi-cylindrical groove (6) is formed in the top of the mounting column (5), the axis of the groove (6) is in a horizontal state, a roller (7) is matched with the inner wall of the groove (6) in a rolling manner, the axis of the roller (7) is parallel to the axis of the groove (6), a cylindrical sliding block (8) is matched with the groove (6) in a rotating manner, the roller (7) is hinged to the surface of the sliding block (8), the axis of the roller (7) is parallel to the axis of the sliding block (8), the end face, the first rotating shaft (9) horizontally penetrates through the groove (6) and the sliding block (8), the axis of the first rotating shaft (9) is overlapped with the axis of the sliding block (8), a supporting frame (10) is vertically and fixedly installed at the top of the outer surface of the sliding block (8), a lifting frame (11) is horizontally and fixedly installed at the top of the supporting frame (10), and the length direction of the lifting frame (11) is perpendicular to the axes of the first rotating shaft (9) and the sliding block (8);

the top of erection column (5) is located the horizontal fixed mounting in edge of recess (6) and has first backup pad (12) and second backup pad (13), the bottom surface fixed mounting of first backup pad (12) has first hydro-cylinder (14) of mutually supporting with recess (6) inner wall, the bottom surface fixed mounting of second backup pad (13) has second hydro-cylinder (15) of mutually supporting with recess (6) inner wall, the opening of first hydro-cylinder (14) and second hydro-cylinder (15) is down, the external fixed surface of slider (8) installs third backup pad (16) and fourth backup pad (17), the fixed surface of third backup pad (16) and fourth backup pad (17) installs first piston rod (18) and second piston rod (19), the tip fixed mounting of first piston rod (18) has first piston (20) with first hydro-cylinder (14) inside wall sliding fit, the tip fixed mounting of second piston rod (19) has second hydro-cylinder (15) inside wall sliding fit's second piston (20) Piston (21), through-hole (22) have been seted up to the lateral wall of first hydro-cylinder (14) and second hydro-cylinder (15), seted up in erection column (5) first passageway (23) through-hole (22) first hydro-cylinder (14) of intercommunication and second hydro-cylinder (15), the top of erection column (5) is vertical to be run through there is screw (24), and erection column (5) and screw (24) screw-thread fit, the bottom fixedly connected with of screw (24) and first passageway (23) internal surface mutually supporting's seal block (25).

2. The medical dressing auxiliary table according to claim 1, wherein: annular spout (26) have been seted up around thread groove (3) to the top surface of bearing block (2), annular spout (26) normal running fit has collar (27), the horizontal and vertical fixed mounting of upper surface of collar (27) has first screwed pipe (28) and second screwed pipe (29), cooperation has first screw rod (30) and second screw rod (31) in first screwed pipe (28) and second screwed pipe (29), first stop collar (32) and second stop collar (33) are installed in the top rotation of first screw rod (30) and second screw rod (31), horizontal logical groove (34) have been seted up in screw post (4), logical groove (34), sliding fit has horizontally gag lever post (35) in first stop collar (32) and second stop collar (33).

3. The medical dressing auxiliary table according to claim 1, wherein: a strip-shaped sliding groove (36) is horizontally arranged in the base (1), a push-pull rod (37) is vertically and slidably matched in the strip-shaped sliding groove (36), push-pull handles (38) positioned outside the base (1) are fixedly installed at two ends of the push-pull rod (37), a third oil cylinder (39) with an upward opening is vertically and fixedly installed in the base (1), an installation groove (40) is formed in the bottom surface of the base (1), a fourth oil cylinder (41) with a downward opening is fixedly installed in the installation groove (40), a second channel (42) communicated with the third oil cylinder (39) and the fourth oil cylinder (41) is formed in the base (1), a third piston rod (43) is vertically and fixedly installed at the bottom of the push-pull rod (37), a third piston (44) in sliding fit with the inner side wall of the third oil cylinder (39) is fixedly installed at the bottom of the third piston rod (43), and a fourth piston (45) is slidably matched with the inner, a fourth piston rod (46) is vertically and fixedly mounted on the bottom surface of the fourth piston (45), a roller (47) is hinged to the bottom of the fourth piston rod (46), when the fourth piston (45) is located at the highest point in the fourth oil cylinder (41), the roller (47) is completely located in the mounting groove (40), a limiting block (48) is hinged to the outer side wall of the base (1) in a horizontal mode, and when the push-pull rod (37) is located at the lowest point in the strip-shaped sliding groove (36), the top of the push-pull rod (37) and the bottom of the limiting block (48) are located on the same horizontal plane.

4. The medical dressing auxiliary table according to claim 1, wherein: the lifting frame (11) is made of rubber, and a plurality of balls (49) are rotationally matched on the upper surface of the lifting frame.