Automatic binding device for physical examination blood sampling

Abstract

The invention discloses an automatic binding device for physical examination blood sampling in the technical field of nursing instruments, the automatic binding device comprises a bottom frame and a binding belt, supporting plates are fixedly connected to the positions, close to the front portion and the rear portion, of the bottom frame, and a certain distance is formed between the two supporting plates; the middle positions between the two supporting plates are jointly connected with a positioning piece in a sliding manner; according to the invention, through multi-point positioning of the placing space by the first strap and the two second straps, the placing space cannot be distorted and misplaced under the characteristics of easy bending and easy winding after being formed, so that misplacement caused by the fact that the strap binds an arm along with gradual reduction of the placing space during subsequent blood sampling is avoided; and in the process of reducing the placing space, the two second binding belts continuously displace in the process of being in contact with the binding belt so as to adapt to the reduction of the placing space.

Description

Technical Field

[0001] The invention relates to the technical field of nursing equipment, in particular to an automatic banding device for blood sampling during physical examination. Background Art

[0002] When drawing blood, the arm of the person drawing blood needs to be tied with a cable tie. At this time, the arm of the person drawing blood will be tightened by the rubber cable tie to expose the blood vessels, and then blood can be drawn;

[0003] When drawing blood, the tying of the cable tie includes two steps: winding and tightening. When winding, it is assisted by continuous stretching to make the cable tie fully contact with the arm of the blood collector, and then tightening is performed to avoid the relaxation and dislocation of the cable tie on the arm after winding, which affects the blood collection. Although the steps are simple, they require high medical literacy of medical staff, otherwise the effect of the cable tie cannot be fully demonstrated. For example, the degree of stretching of the cable tie will affect the difficulty of subsequent release, and when the cable tie is wrapped, the difficulty of wrapping will increase due to the "easy to bend and easy to wrap" characteristics of the cable tie itself. It is manifested in that after the medical staff takes the two ends of the cable tie to both sides of the arm of the blood collector, the cable tie is in a bent state, and at this time, the "easy to bend and easy to wrap" characteristics of the cable tie itself make the part under the arm of the blood collector present an irregular bending state, which will cause the cable tie to be dislocated when it contacts the arm of the blood collector and is stretched from both ends, resulting in a large span of the cable tie binding trajectory, which will affect the effect of subsequent blood collection.

[0004] Based on this, the present invention designs an automatic banding device for blood sampling during physical examination to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an automatic banding device for blood sampling during physical examination to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic strapping device for blood sampling for physical examination, comprising a base frame and a strapping device, wherein the base frame is fixedly connected with support plates at positions near the front and rear, and there is a certain distance between the two support plates, a positioning member is slidably connected to the middle position between the two support plates, a first strap is fixedly connected to the top of the positioning member, a first spring is fixedly connected between the positioning member and the two support plates, a slide groove is respectively provided on the left and right side walls of the two support plates, the two slide grooves on the left and the inside of the two slide grooves on the right are slidably connected to a driving block, the bottoms of the two driving blocks are fixedly connected with a first connecting member, the first connecting member is slidably connected with a movable sheet, the movable sheet and the first connecting member are fixedly connected with a second spring, a second strap is arranged on the movable sheet, the strap passes through the two second straps and a first strap, and the ends of the strap will cross and move to the inside of the driving blocks on the left and right sides after passing through the second strap;

[0007] The driving block is provided with a driving group, and the driving group is used to stretch the two ends of the cable tie and make the driving block slide up and down along the slide groove.

[0008] As a further solution of the present invention, a cleaning group is provided on each of the two first connecting members;

[0009] The cleaning group includes a first gear and a second gear, the first gear and the second gear are both rotatably connected to the movable sheet, the first gear is meshed with the second gear, the first gear and the second gear are staggered, the first gear is meshed with a rack rod, the rack rod is fixedly connected to the first connecting member, the second strap is annular and one end of which is located between the first gear and the second gear and is bitten by the teeth of the first gear and the second gear, the other end of the second strap is located outside the movable sheet and is slidably connected to the movable sheet, and the other end of the second strap is located outside the cable tie;

[0010] The second strap is preferably made of sponge material.

[0011] As a further solution of the present invention, one side of the movable sheet is fixedly connected with a covering sheet, and the covering sheet is slidably connected to the second strap.

[0012] As a further solution of the present invention, a second connecting member is provided below each of the two first connecting members, and each of the second connecting members is slidably connected to a limiting groove, the limiting groove is arc-shaped and is provided on the side wall of the support plate, and a pull rope is fixedly connected between the first connecting member and the second connecting member;

[0013] The second connecting member is also provided with a cleaning group and a second strap, and the connection mode of the cleaning group, the second strap and the second connecting member is the same as the connection mode of the cleaning group, the second strap and the first connecting member.

[0014] As a further solution of the present invention, the driving group includes a winding group and a displacement group;

[0015] The winding group includes two winding wheels distributed in the upper and lower directions, the end of the cable tie is located between the two winding wheels, and the cable tie is stretched when the two winding wheels rotate, and the two winding wheels are fixedly connected to the first motor, and the first motor is arranged on the inner wall of the driving block.

[0016] As a further solution of the present invention, two guide rings are arranged between the first motors, the two guide rings are distributed on the left and right sides of the first motor, and the two guide rings are fixedly connected to the inner wall of the driving block.

[0017] As a further solution of the present invention, the first motors located above are fixedly connected with lifting plates, and the lifting plates are slidably connected to the driving blocks in the vertical direction. A third spring is fixedly connected between the lifting plates and the inner wall of the driving blocks, and a limiting plate is arranged above the lifting plates, and the limiting plates are slidably connected to the driving blocks.

[0018] As a further solution of the present invention, the displacement group includes a second motor and a contact wheel, the second motor is fixedly connected to the bottom of the driving block, the output shaft of the second motor is fixedly connected to the contact wheel, and the contact wheel contacts the side wall of the support plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention uses the multi-point positioning of the placement space by the first strap and the two second straps to ensure that the placement space will not be twisted or misaligned due to the characteristics of "easy to bend and entangle" after it is formed, thereby avoiding the misalignment of the arm when the tie is used to tie the arm as the placement space gradually shrinks during subsequent blood collection. In the process of shrinking the placement space, the two second straps will continue to shift in the process of contacting the tie to adapt to the shrinkage of the placement space. When the placement space gradually increases from the minimum, the second straps can automatically comb the tie through the contact with the tie during the resetting process to ensure the formation of the placement space.

[0021] 2. When the cable tie is wrapped around the arm, it is achieved by stretching and lowering the two ends, which will continuously fix the two ends of the cable tie, and after the placement space is completely reduced, the two ends of the cable tie are slightly lower than the arm, thereby improving the coverage of the arm bundling, and there is no need to fix the cable tie by tightening it. On the one hand, it can avoid damage to the cable tie itself caused by multiple tightenings, making the cable tie faster to release.

[0022] 3. When the first gear and the second gear rotate, they will convey the second strap, and the second strap is in a state of being tightened by the strap. Therefore, when the second strap is being conveyed and the first connecting member moves with the driving block, it will wipe the strap. It is mainly used to wipe and clean the strap to prevent sweat stains on the arm from remaining on the strap after contacting it and corroding the strap over a long period of time. If the strap is corroded, it will clamp the arm skin during subsequent bundling, causing discomfort to the blood donor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 A schematic diagram of the positional relationship between the support plate and the driving block of the present invention;

[0025] Figure 3 It is a schematic diagram of the positional relationship between the support plate and the positioning member and the first connecting member and the second connecting member of the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0027] Figure 5 It is a schematic diagram of the positional relationship between the support plate, the guide ring and the cable tie of the present invention;

[0028] Figure 6 It is a schematic diagram of the positional relationship between the first connecting member, the drawstring and the cable tie of the present invention;

[0029] Figure 7 It is a schematic diagram of the positional relationship between the second connecting member, the cleaning group and the pull rope of the present invention;

[0030] Figure 8 It is a schematic diagram of the positional relationship between the driving block and the first connecting member, the winding wheel and the contact wheel of the present invention;

[0031] Fig. 9 It is a schematic diagram of the positional relationship between the lifting plate and the limiting plate and the winding wheel and the guide ring of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Base frame; 2. Cable tie; 3. Support plate; 4. Positioning member; 5. First cable tie; 6. First spring; 7. Drive block; 8. Slide groove; 9. First connecting member; 10. Movable plate; 11. Second spring; 12. Second cable tie; 13. First gear; 14. Second gear; 15. Covering plate; 16. Second connecting member; 17. Limiting groove; 18. Pull rope; 19. Winding wheel; 20. First motor; 21. Guide ring; 22. Lifting plate; 23. Third spring; 24. Limiting plate; 25. Second motor; 26. Contact wheel; 27. Rack rod. DETAILED DESCRIPTION

[0034] See also Figure 1-Figure 9 The present invention provides a technical solution: an automatic banding device for blood sampling for physical examination, comprising a base frame 1 and a banding 2, wherein the base frame 1 is fixedly connected with a support plate 3 near the front and rear positions, and there is a certain distance between the two support plates 3, and a positioning member 4 is slidably connected to the middle position between the two support plates 3, and a first band 5 is fixedly connected to the top of the positioning member 4, and a first spring 6 is fixedly connected between the positioning member 4 and the two support plates 3, and a slide groove 8 is respectively provided on the left and right side walls of the two support plates 3, and a driving block 7 is slidably connected to the inside of the two slide grooves 8 on the left and the two slide grooves 8 on the right, and the bottoms of the two driving blocks 7 are fixedly connected with a first connecting member 9, and a movable sheet 10 is slidably connected to the first connecting member 9, and a second spring 11 is fixedly connected between the movable sheet 10 and the first connecting member 9, and a second band 12 is arranged on the movable sheet 10, and the band 2 passes through the two second bands 12 and a first band 5, and the ends of the band 2 will cross and move to the inside of the driving blocks 7 on the left and right sides after passing through the second band 12;

[0035] A driving group is provided on the driving block 7 , and the driving group is used to stretch the two ends of the cable tie 2 and make the driving block 7 slide up and down along the slide groove 8 .

[0036] like Figure 1-Figure 6 As shown:

[0037] When drawing blood, the arm is extended into the placement space formed by the cable tie 2, and the placement space is maintained by the first strap 5 and the two second straps 12 to prevent the cable tie 2 from being twisted and misplaced due to its own characteristics of "easy to bend and entangle". Then the arm is placed above the base frame 1 and the two support plates 3. At this time, the cable tie 2 will be outside the arm, and then the driving group is started. The driving group stretches the two ends of the cable tie 2 inside the driving block 7, so that the placement space formed by the two ends of the cable tie 2 will be gradually reduced, and at this time the driving block 7 will slide downward along the slide groove 8 opened on the two side walls of the two arc-shaped support plates 3. At this time, the cable tie 2 will move downward while being stretched until it contacts the arm to tie the arm;

[0038] When the cable tie 2 is stretched and the driving block 7 slides downward along the slide groove 8, the first connecting member 9 will move downward with the driving block 7, and the cable tie 2 will be stretched to pull the second strap 12 to tighten and move with the movable piece 10. At this time, the movable piece 10 will slide along the first connecting member 9 and stretch the second spring 11. When the cable tie 2 is stretched, it will also pull the first strap 5, so that the first strap 5 drives the positioning member 4 to slide along the support plate 3 and stretch the first spring 6. Then, after the cable tie 2 is stretched to wrap the arm, the first strap 5 and the second strap 12 will be distributed on the outside of the arm and in contact with the arm, and then when the driving block 7 slides along the slide groove 8, the second strap 12 will remain with the cable tie 2 The arm is then completely bound by the cable tie 2, and the height of the driving block 7 when at the bottom is lower than the arm, thereby ensuring that the two ends of the cable tie 2 are lower than the arm to ensure that the arm is bound and tightened, and then blood sampling can be performed;

[0039] After the blood collection is completed, the driving block 7 is made to slide up along the slide groove 8 through the driving group. At this time, the driving block 7 will gradually release the cable tie 2, and the two first connecting members 9 will also move away from the positioning member 4. Following the movement of the driving block 7, the second strap 12 will move along the cable tie 2, and the elasticity of the second spring 11 will be released to a corresponding degree according to the stretching degree of the cable tie 2. After the driving block 7 slides up to the top, the placement space formed by the cable tie 2 will gradually increase until it is in the initial state. After the placement space of the cable tie 2 is formed, the multi-point positioning of the cable tie 2 is restricted by the first strap 5 and the two second straps 12, which can ensure that the cable tie 2 will not be twisted and misaligned due to the characteristics of "easy to bend and easy to entangle", thereby avoiding the cable tie 2 from being misaligned when tying the arm as the placement space gradually shrinks during subsequent blood collection;

[0040] The present invention can prevent the placement space from being twisted and misaligned due to the characteristics of "easy to bend and entangle" after it is formed by the multi-point positioning of the placement space by the first strap 5 and the two second straps 12, thereby avoiding the misalignment of the tie 2 when tying the arm as the placement space gradually shrinks during subsequent blood collection. In addition, during the process of shrinking the placement space, the two second straps 12 will continue to shift in the process of contacting with the tie 2 to adapt to the shrinkage of the placement space. When the placement space gradually increases from the minimum, the second strap 12 can automatically comb the tie 2 through the contact with the tie 2 during the resetting process to ensure the formation of the placement space.

[0041] Moreover, when the cable tie 2 is wrapped around the arm, it is achieved by stretching and lowering the two ends, which will continuously fix the two ends of the cable tie 2, and after the placement space is completely reduced, the two ends of the cable tie 2 are slightly lower than the arm, thereby improving the coverage of the arm bundling, and there is no need to fix the cable tie 2 by tightening it. On the one hand, it can avoid damage to the cable tie 2 itself caused by multiple tightenings, so that the cable tie 2 can be released more quickly.

[0042] The two first connecting members 9 are both provided with a cleaning group;

[0043] The cleaning group includes a first gear 13 and a second gear 14, the first gear 13 and the second gear 14 are both rotatably connected to the movable sheet 10, the first gear 13 is meshed with the second gear 14, the first gear 13 and the second gear 14 are staggered, the first gear 13 is meshed with a rack rod 27, the rack rod 27 is fixedly connected to the first connecting member 9, the second strap 12 is annular and one end of which is located between the first gear 13 and the second gear 14, and is bitten by the teeth of the first gear 13 and the second gear 14, the other end of the second strap 12 is located outside the movable sheet 10 and is slidably connected to the movable sheet 10, and the other end of the second strap 12 is located outside the cable tie 2;

[0044] The second strap 12 is preferably made of sponge material.

[0045] like Figure 6 As shown:

[0046] When the cable tie 2 is stretched, the cable tie 2 will be pulled by the second strap 12 to make the movable sheet 10 slide along the first connecting member 9. At this time, the second spring 11 will be stretched, and when the movable sheet 10 slides along the first connecting member 9, the first gear 13 will mesh with the rack rod 27 and rotate, and the first gear 13 is meshed with the second gear 14, and the second strap 12 is inside the tooth grooves of the first gear 13 and the second gear 14. Then, when the first gear 13 and the second gear 14 rotate, the second strap 12 will be conveyed, and the second strap 12 is in a state of being tightened by the cable tie 2. Therefore, at this time, when the second strap 12 is conveyed and the first connecting member 9 moves with the driving block 7, it will wipe the cable tie 2. It is mainly used to wipe and clean the cable tie 2 to prevent sweat on the arm from remaining on the cable tie 2 after contacting with the cable tie 2 and corroding the cable tie 2 for a long time. If the cable tie 2 is corroded, the arm skin will be clamped during the subsequent bundling, causing discomfort to the blood donor.

[0047] One side of the movable sheet 10 is fixedly connected with a covering sheet 15 , and the covering sheet 15 is slidably connected to the second strap 12 .

[0048] like Figure 6 As shown:

[0049] The restriction of the second strap 12 by the covering sheet 15 can enable the second strap 12 to fully cover the cable tie 2 after contacting the cable tie 2, thereby improving the cleaning efficiency.

[0050] A second connecting member 16 is disposed below each of the two first connecting members 9. The second connecting members 16 are slidably connected to a limiting groove 17. The limiting groove 17 is arc-shaped and is provided on the side wall of the support plate 3. A pull rope 18 is fixedly connected between the first connecting member 9 and the second connecting member 16.

[0051] A cleaning group and a second strap 12 are also provided on the second connecting member 16 . The connection method of the cleaning group, the second strap 12 and the second connecting member 16 is the same as the connection method of the cleaning group, the second strap 12 and the first connecting member 9 .

[0052] like Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown:

[0053] With the cooperation of the two first connecting members 9, the two second straps 12, and the first strap 5 and the positioning member 4, the placement space of the cable tie 2 can be automatically limited, so that the cable tie 2 will not be twisted or misplaced. With the assistance of the two second connecting members 16 and the cleaning group arranged on the second connecting member 16, the points for limiting the cable tie 2 are added, so that the cable tie 2 will not be partially exposed inside the support plate 3 due to insufficient points, thereby avoiding possible contact and interference when the arm is put in, and increasing the cleaning effect of the cable tie 2.

[0054] When the first connecting member 9 moves following the driving block 7, the first connecting member 9 will move in the direction of the second connecting member 16. At this time, the pull rope 18 will gradually relax. When the first connecting member 9 contacts the second connecting member 16, the second connecting member 16 will be pushed and slide along the limiting groove 17 to move in the direction of the positioning member 4. After the driving block 7 drops to the limit, the two first connecting members 9 and the two second connecting members 16 and the positioning member 4 will fit together, and at this time, the four second straps 12 and the first strap 5 will all be below the cable tie 2 and can be stretched to a position in contact with the arm to ensure the covering of the arm. After the second-gear driving block 7 is reset, the second connecting member 16 will be pulled to move only after the pull rope 18 is fully stretched.

[0055] The driving group includes a winding group and a displacement group;

[0056] The winding group includes two winding wheels 19 distributed in the upper and lower directions. The end of the cable tie 2 is located between the two winding wheels 19, and the cable tie 2 is stretched when the two winding wheels 19 rotate. The two winding wheels 19 are fixedly connected to the first motor 20, and the first motor 20 is arranged on the inner wall of the driving block 7.

[0057] Two guide rings 21 are arranged between the first motors 20 . The two guide rings 21 are distributed on the left and right sides of the first motors 20 . The two guide rings 21 are fixedly connected to the inner wall of the driving block 7 .

[0058] The first motors 20 located above are fixedly connected to lifting plates 22, and the lifting plates 22 are slidably connected to the driving blocks 7 in the vertical direction. A third spring 23 is fixedly connected between the lifting plates 22 and the inner wall of the driving blocks 7. A limiting plate 24 is arranged above the lifting plates 22, and the limiting plates 24 are slidably connected to the driving blocks 7.

[0059] like Figure 1-Figure 3 as well as Figure 5 , Figure 8 and Fig. 9 As shown:

[0060] When the first motor 20 rotates, it drives the reel 19 to keep pressing the cable tie 2 to convey the cable tie 2. The cable tie 2 will not deviate or twist under the restriction of the two guide rings 21, thereby preventing the reel 19 from misaligning the cable tie 2 when reeling. The reel 19 stretches the cable tie 2 by conveying and then wraps it around the arm, rather than directly stretching the two ends of the cable tie 2. This can shorten the length required for stretching the cable tie 2 and ensure the stretching degree.

[0061] When the limiting plate 24 is pulled out, the elastic relaxation of the third spring 23 will cause the lifting plate 22 to drive the first motor 20 to rise, thereby causing the two winding wheels 19 to disengage from the cable tie 2. At this time, the cable tie 2 can be easily replaced. It only needs to pass the cable tie 2 through the guide ring 21, the winding wheel 19, the second strap 12 and the first strap 5 for replacement, and then press down the lifting plate 22 to compress the third spring 23, and then insert the limiting plate 24 into the interior of the driving block 7 to limit the lifting plate 22.

[0062] The displacement group includes a second motor 25 and a contact wheel 26 . The second motor 25 is fixedly connected to the bottom of the driving block 7 . The output shaft of the second motor 25 is fixedly connected to the contact wheel 26 . The contact wheel 26 contacts the side wall of the support plate 3 .

[0063] Such as 1. Figure 2 and Figure 8 As shown:

[0064] The contact wheel 26 contacts the side wall of the support plate 3 . When the second motor 25 rotates, the contact wheel 26 is driven to rotate. At this time, the contact wheel 26 rotates along the support plate 3 , thereby driving the driving block 7 to move.

Claims

1. An automatic cable tie device for blood sampling during physical examination, comprising a base frame (1) and a cable tie (2), characterized in that: The positions near the front and rear of the base frame (1) are fixedly connected with support plates (3), and there is a certain distance between the two support plates (3). A positioning member (4) is slidably connected to the middle position between the two support plates (3). A first strap (5) is fixedly connected to the top of the positioning member (4). A first spring (6) is fixedly connected between the positioning member (4) and the two support plates (3). Slide grooves (8) are respectively provided on the left and right side walls of the two support plates (3). The two slide grooves (8) on the left and the two slide grooves (8) on the right are connected together. A driving block (7) is slidably connected, the bottoms of the two driving blocks (7) are fixedly connected with a first connecting member (9), a movable sheet (10) is slidably connected to the first connecting member (9), a second spring (11) is fixedly connected between the movable sheet (10) and the first connecting member (9), a second strap (12) is arranged on the movable sheet (10), the strap (2) passes through the two second straps (12) and one first strap (5), and the ends of the strap (2) will cross and move to the inside of the driving blocks (7) on the left and right sides after passing through the second strap (12); The driving block (7) is provided with a driving group, and the driving group is used to stretch the two ends of the cable tie (2) and to make the driving block (7) slide up and down along the slide groove (8).

2. The automatic banding device for blood sampling for physical examination according to claim 1, characterized in that: A cleaning group is provided on each of the two first connecting members (9); The cleaning group comprises a first gear (13) and a second gear (14), the first gear (13) and the second gear (14) are both rotatably connected to the movable plate (10), the first gear (13) is meshed with the second gear (14), the first gear (13) and the second gear (14) are arranged alternately, the first gear (13) is meshed with a rack rod (27), the rack rod (27) is fixedly connected to the first connecting member (9), the second strap (12) is annular and one end of the second strap is located between the first gear (13) and the second gear (14) and is bitten by the teeth of the first gear (13) and the second gear (14), the other end of the second strap (12) is located outside the movable plate (10) and is slidably connected to the movable plate (10), and the other end of the second strap (12) is located outside the cable tie (2); The second strap (12) is preferably made of sponge material.

3. The automatic banding device for blood sampling for physical examination according to claim 2, characterized in that: One side of the movable sheet (10) is fixedly connected to a covering sheet (15), and the covering sheet (15) is slidably connected to the second strap (12).

4. The automatic banding device for blood sampling for physical examination according to claim 2, characterized in that: A second connecting member (16) is disposed below each of the two first connecting members (9), and each of the second connecting members (16) is slidably connected to a limiting groove (17), wherein the limiting groove (17) is arc-shaped and is provided on the side wall of the support plate (3), and a pull rope (18) is fixedly connected between the first connecting member (9) and the second connecting member (16); The second connecting member (16) is also provided with a cleaning group and a second strap (12), and the connection method of the cleaning group, the second strap (12) and the second connecting member (16) is the same as the connection method of the cleaning group, the second strap (12) and the first connecting member (9).

5. The automatic strapping device for blood sampling for physical examination according to claim 1, characterized in that: The driving group includes a winding group and a displacement group; The winding group comprises two winding wheels (19) which are distributed at different heights in the vertical direction, the end of the cable tie (2) is located between the two winding wheels (19), and the cable tie (2) is stretched when the two winding wheels (19) rotate, and the two winding wheels (19) are fixedly connected to a first motor (20), and the first motor (20) is arranged on the inner wall of the driving block (7).

6. The automatic banding device for blood sampling for physical examination according to claim 5, characterized in that: Two guide rings (21) are arranged between the first motors (20), the two guide rings (21) are distributed on the left and right sides of the first motor (20), and the two guide rings (21) are fixedly connected to the inner wall of the driving block (7).

7. The automatic banding device for blood sampling for physical examination according to claim 6, characterized in that: The first motors (20) located above are fixedly connected to lifting plates (22), and the lifting plates (22) are slidably connected to the driving blocks (7) in the vertical direction. A third spring (23) is fixedly connected between the lifting plates (22) and the inner wall of the driving blocks (7). A limiting plate (24) is arranged above the lifting plates (22), and the limiting plates (24) are slidably connected to the driving blocks (7).

8. The automatic banding device for blood sampling for physical examination according to claim 5, characterized in that: The displacement group comprises a second motor (25) and a contact wheel (26); the second motor (25) is fixedly connected to the bottom of the driving block (7); the output shaft of the second motor (25) is fixedly connected to the contact wheel (26); and the contact wheel (26) is in contact with the side wall of the support plate (3).

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