阅读说明：本技术 一种适用于医疗病理检测用批量式快速采血器 (Batch type quick blood collector suitable for medical pathological detection ) 是由 王宇 于 2021-08-02 设计创作，主要内容包括：本发明涉及医疗用品领域,尤其涉及一种适用于医疗病理检测用批量式快速采血器,包括有支撑条、支撑底板、支撑板、导料框、往复运动组件等；支撑条上固定安装有支撑底板,支撑板同样固定安装在支撑条上,支撑底板上设置有导料框,往复运动组件设于支撑底板上。通过挤压板对橡胶负压头进行挤压,将橡胶负压头与采血管内部的空气从针管挤压出去,使橡胶负压头与采血管内部压强减小,接着橡胶负压头扩张,将血液抽入采血管中,实现对血液进行采样的目的。(The invention relates to the field of medical supplies, in particular to a batch type rapid hemostix suitable for medical pathological detection, which comprises a support bar, a support bottom plate, a support plate, a material guide frame, a reciprocating motion assembly and the like; the support bar is fixedly provided with a support bottom plate, the support plate is also fixedly arranged on the support bar, the support bottom plate is provided with a guide frame, and the reciprocating motion assembly is arranged on the support bottom plate. Extrude rubber negative pressure head through the stripper plate, extrude away from the needle tubing rubber negative pressure head and the inside air of heparin tube, make rubber negative pressure head and heparin tube internal pressure reduce, rubber negative pressure head expansion after that, with the blood suction in the heparin tube, the realization is carried out the purpose of sampling to blood.)

1. A batch type rapid hemostix suitable for medical pathological examination is characterized by comprising a support bar (1), a support base plate (2), a support plate (3), a material guide frame (4), a reciprocating motion assembly (5), a turnover assembly (6), a support assembly (7), a squeezing assembly (8), an impact assembly (9) and a blood sampling assembly (10), wherein the support base plate (2) is fixedly arranged on the support bar (1), the support plate (3) is also fixedly arranged on the support bar (1), the material guide frame (4) is arranged on the support base plate (2), the reciprocating motion assembly (5) is arranged on the support base plate (2), the turnover assembly (6) is arranged on the reciprocating motion assembly (5), the support assembly (7) is slidably connected on the support plate (3), the squeezing assembly (8) is arranged on the support plate (3), the impact assembly (9) is arranged on the support bar (1), the blood sampling assembly (10) is arranged on the reciprocating assembly (5).

2. The batch type rapid hemostix applicable to medical pathology detection according to claim 1, wherein the reciprocating assembly (5) comprises an electric push rod (51), a guide bar (52), a movable sleeve (53), a first compression spring (54), a rotating shaft (55), a pull plate (56), a rubber ring (57) and a chute guide plate (58), the electric push rod (51) is fixedly installed on the support base plate (2), the guide bar (52) is welded at one end of the telescopic shaft of the electric push rod (51), the movable sleeve (53) is slidably connected on the guide bar (52), the first compression spring (54) is fixedly connected at one side of the movable sleeve (53), one end of the first compression spring (54) is connected with the guide bar (52), the rotating shaft (55) is connected to a bearing on the movable sleeve (53) in an interference fit manner, the pull plate (56) is welded at the bottom end of the rotating shaft (55), the rotating shaft (55) is sleeved with a rubber ring (57), the rubber ring (57) is in mutual contact with the movable sleeve (53), the top surface of the supporting bottom plate (2) is vertically connected with a chute guide plate (58), and the chute guide plate (58) is in limit fit with the movable sleeve (53).

3. The batch type rapid blood collector suitable for medical pathological examination according to claim 2, wherein the turnover assembly (6) comprises a nut sleeve (61) and a screw rod (62), the nut sleeve (61) is welded above the chute guide plate (58), the rotating shaft (55) penetrates through the nut sleeve (61), the screw rod (62) is welded at the top end of the rotating shaft (55), and a thread groove corresponding to the screw rod (62) is formed in the nut sleeve (61).

4. The batch type rapid hemostix applicable to medical pathology detection according to claim 3, wherein the support assembly (7) comprises a support frame (71) and a support spring (72), the support frame (71) is connected to the support plate (3) in a lifting manner, the support spring (72) is fixedly connected to the support frame (71), and one end of the support spring (72) is connected to the support plate (3).

5. The batch type rapid hemostix applicable to medical pathology detection according to claim 4, wherein the squeezing component (8) comprises a first support plate (81), a movable lower pressing rod (82), a second compression spring (83), a second support plate (84), a squeezing plate (85) and a first extension spring (86), the first support plate (81) is welded on one side of the support plate (3), the movable lower pressing rod (82) is connected to the first support plate (81) in a lifting manner, the movable lower pressing rod (82) is connected to the second compression spring (83) in a coupling manner, one end of the second compression spring (83) is connected to the first support plate (81), the second support plate (84) is arranged on the blood sampling component (10), the squeezing plate (85) is connected to the second support plate (84) in a sliding manner, the squeezing plate (85) is in contact with the movable lower pressing rod (82), the squeezing plate (85) is in contact with the support frame (71), a first extension spring (86) is connected to the extrusion plate (85), and one end of the first extension spring (86) is fixedly connected with the second support plate (84).

6. The batch type rapid hemostix applicable to medical pathology detection of claim 5, wherein the punching assembly (9) comprises a lower pressing plate (91), a second extension spring (92), an opposite sex limiting rod (93), a third compression spring (94), a limiting strip (95) and a limiting spring (96), the lower pressing plate (91) is connected to the supporting strip (1) in a lifting manner, the lower pressing plate (91) contacts with the pulling plate (56), the second extension spring (92) is fixedly connected to the lower pressing plate (91), one end of the second extension spring (92) is connected to the supporting strip (1), the opposite sex limiting rod (93) is slidably connected to the material guiding frame (4), the opposite sex limiting rod (93) is connected to the supporting strip (1) in a limiting manner, a pair of third compression springs (94) is connected to the opposite sex limiting rod (93), one end of each third compression spring (94) is fixedly connected to the material guiding frame (4), the opposite sex limiting rod (93) is connected with a limiting strip (95) in a sliding mode, and a limiting spring (96) is connected between the limiting strip (95) and the opposite sex limiting rod (93).

7. The batch type rapid hemostix applicable to medical pathology detection according to claim 6, wherein the blood collection assembly (10) comprises a support guide frame (101), a blood collection tube (102), a rubber negative pressure head (103), a plastic wedge-shaped strip (104) and a fourth compression spring (105), the support guide frame (101) is welded on the chute guide plate (58), the second support plate (84) is welded on one side of the support guide frame (101), the support frame (71) is in contact with the support guide frame (101), the extrusion plate (85) is in contact with the support guide frame (101), the blood collection tube (102) is distributively placed in the support guide frame (101), the blood collection tube (102) is also placed on the support frame (71), one of the blood collection tube (102) is in contact with the extrusion plate (85), the rubber negative pressure head (103) is arranged on the blood collection tube (102), the plastic wedge-shaped strip (104) is slidably connected on the blood collection tube (102), a pair of fourth compression springs (105) is connected between the plastic wedge-shaped strip (104) and the blood collection tube (102).

8. The batch type rapid blood collector suitable for medical pathological examination according to claim 7, further comprising a disposable disinfection cushion (11), wherein the disposable disinfection cushion (11) is placed on the support plate (3).

Technical Field

The invention relates to the field of medical supplies, in particular to a batch type rapid hemostix suitable for medical pathological detection.

Background

Blood sampling is a process of sampling blood samples through veins and arteries by medical staff due to inspection or related needs, finger blood sampling can be used for checking blood routine including white or red blood cells, platelet count and lymphocyte content, blood coagulation time and the like, and in addition, some blood sugar levels can also be measured by finger blood sampling.

In the conventional blood detection, generally adopt the gimmick of pricking the finger, medical personnel fix the blood sampling position of patient's left thumb and forefinger, make skin and subcutaneous tissue tighten, and the right hand is handed disposable disinfection blood taking needle and is pricked from finger end ventral medial side, and the finger is taken a blood sample, and current blood sampling device is generally hand-held type, and medical personnel use for a long time and cause the hand ache easily, and the blood sampling step is more, and blood sampling speed is slower.

Disclosure of Invention

The invention aims to provide a batch type quick blood collector which can disinfect fingers, sample blood, accelerate blood collection speed and facilitate the recovery of a blood collection device and is suitable for medical pathological examination, so as to solve the problems that medical workers easily feel sore hands, have more blood collection steps and have lower blood collection speed when using a handheld blood collection device for a long time in the background technology.

The technical scheme is as follows: the utility model provides a be applicable to medical treatment pathological examination is with quick hemostix of batch formula, including the support bar, the supporting baseplate, the backup pad, the guide frame, the reciprocating motion subassembly, the upset subassembly, the supporting subassembly, crowded subassembly, break subassembly and blood sampling subassembly, fixed mounting has the supporting baseplate on the support bar, the same fixed mounting of backup pad is on the support bar, be provided with the guide frame on the supporting baseplate, the reciprocating motion subassembly is located on the supporting baseplate, the upset subassembly sets up on the reciprocating motion subassembly, the sliding type is connected with the supporting subassembly in the backup pad, crowded subassembly is located in the backup pad, break the subassembly and set up on the support bar, the blood sampling subassembly is located on the reciprocating motion subassembly.

Preferably, the reciprocating motion subassembly is including electric putter, the gib block, the movable sleeve, first compression spring, the rotation axis, the pulling plate, rubber ring and chute deflector, fixed mounting has electric putter on the supporting baseplate, the gib block has been welded to electric putter telescopic shaft one end, the slidable formula is connected with the movable sleeve on the gib block, the first compression spring of movable sleeve one side fixedly connected with, first compression spring one end is hookup with the gib block, the bearing on the movable sleeve is connected with the rotation axis through interference fit's mode, the welding of rotation axis bottom has the pulling plate, the rubber ring has been cup jointed on the rotation axis, rubber ring and movable sleeve mutually contact, the supporting baseplate top surface links to each other perpendicularly has the chute deflector, chute deflector and the spacing cooperation of movable sleeve.

Preferably, the overturning assembly comprises a nut sleeve and a screw rod, the nut sleeve is welded above the chute guide plate, the rotating shaft penetrates through the nut sleeve, the screw rod is welded at the top end of the rotating shaft, and a thread groove corresponding to the screw rod is formed in the nut sleeve.

Preferably, the supporting assembly comprises a supporting frame and a supporting spring, the supporting frame is connected to the supporting plate in a lifting mode, the supporting spring is fixedly connected to the supporting frame, and one end of the supporting spring is connected with the supporting plate.

Preferably, the extrusion assembly comprises a first support plate, a movable lower pressing rod, a second compression spring, a second support plate, an extrusion plate and a first extension spring, the first support plate is welded on one side of the support plate, the movable lower pressing rod is connected to the first support plate in a lifting mode, the second compression spring is connected to the movable lower pressing rod, one end of the second compression spring is connected with the first support plate, the second support plate is arranged on the blood sampling assembly, the extrusion plate is connected to the second support plate in a sliding mode and is in contact with the movable lower pressing rod, the extrusion plate is in contact with the support frame, the first extension spring is connected to the extrusion plate, and one end of the first extension spring is fixedly connected with the second support plate.

Preferably, the punching assembly comprises a lower pressing plate, a second extension spring, an opposite sex limiting rod, a third compression spring, a limiting strip and a limiting spring, the lower pressing plate is connected to the supporting bar in a liftable mode, the lower pressing plate is in contact with the pulling plate, the second extension spring is fixedly connected to the lower pressing plate, one end of the second extension spring is connected with the supporting bar, the opposite sex limiting rod is connected to the guide frame in a sliding mode, the opposite sex limiting rod is in limiting connection with the supporting bar, the opposite sex limiting rod is connected with the pair of third compression springs in a connecting mode, one end of the third compression spring is fixedly connected with the guide frame, the limiting strip is connected to the opposite sex limiting rod in a sliding mode, and the limiting spring is connected between the limiting strip and the opposite sex limiting rod.

As preferred, the blood sampling subassembly is including supporting the guide frame, the heparin tube, rubber negative pressure head, plasticity wedge strip and fourth compression spring, the welding has the support guide frame on the chute deflector, the second extension board welding is in support guide frame one side, the support frame contacts with the support guide frame, stripper plate and support guide frame contact, the heparin tube has been placed to the distributing type in the support guide frame, the heparin tube has been placed equally on the support frame, one of them heparin tube and stripper plate contact, be provided with rubber negative pressure head on the heparin tube, sliding connection has plasticity wedge strip on the heparin tube, the hookup has a pair of fourth compression spring between plasticity wedge strip and the heparin tube.

Preferably, the disposable disinfection cushion is further included, and the disposable disinfection cushion is placed on the support plate.

The invention has the beneficial effects that:

through the effect of disposable disinfection blotter, can disinfect to the finger, can also keep apart finger and backup pad, prevent that the finger from being infected with the bacterium in the backup pad, when pricking, disposable disinfection blotter cushions the finger, alleviates painful sense.

Extrude rubber negative pressure head through the stripper plate, extrude away from the needle tubing rubber negative pressure head and the inside air of heparin tube, make rubber negative pressure head and heparin tube internal pressure reduce, rubber negative pressure head expansion after that, with the blood suction in the heparin tube, the realization is carried out the purpose of sampling to blood.

Through second extension spring's reset action for the quick downstream of holding down plate, the quick downstream of holding down plate strikes the heparin tube, and plasticity wedge strip receives the impact force and can take place the fracture, and plasticity wedge strip no longer blocks the pulling plate, and the heparin tube passes through the downward landing of guide frame, and the staff later stage of being convenient for is retrieved it.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a partial perspective view of the present invention.

Fig. 4 is a perspective view of the reciprocating assembly of the present invention.

Fig. 5 is a schematic perspective view of the flip assembly of the present invention.

Fig. 6 is a perspective view of the support assembly and the squeeze assembly of the present invention.

Fig. 7 is a schematic separated perspective view of the punching assembly of the present invention.

FIG. 8 is a schematic view of a first partially unitary construction of a blood collection assembly of the present invention.

FIG. 9 is a schematic view of a second partially assembled body construction of the blood collection assembly of the present invention.

Fig. 10 is an enlarged schematic view of the structure of the present invention a.

Description of reference numerals: 1_ supporting strip, 2_ supporting base plate, 3_ supporting plate, 4_ guiding frame, 5_ reciprocating component, 51_ electric push rod, 52_ guiding strip, 53_ movable sleeve, 54_ first compression spring, 55_ rotary shaft, 56_ pulling plate, 57_ rubber ring, 58_ chute guiding plate, 6_ turnover component, 61_ nut sleeve, 62_ lead screw, 7_ supporting component, 71_ supporting frame, 72_ supporting spring, 8_ squeezing component, 81_ first supporting plate, 82_ movable down-pressing rod, 83_ second compression spring, 84_ second supporting plate, 85_ squeezing plate, 86_ first stretching spring, 9_ impact component, 91_ down-pressing plate, 92_ second stretching spring, 93_ opposite sex limiting rod, 94_ third compression spring, 95_ limiting strip, 96_ limiting spring, 10_ blood sampling component, 101_ supporting guiding frame, 102_ blood sampling tube, 103_ rubber head, 104_ plastic wedge strip, 105_ fourth compression spring, 11_ disposable sterile cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a batch type rapid hemostix suitable for medical pathological examination, as shown in figures 1-10, which comprises a support strip 1, a support bottom plate 2, a support plate 3, a material guide frame 4 and a reciprocating motion component 5, upset subassembly 6, supporting component 7, crowded subassembly 8, break subassembly 9 and blood sampling subassembly 10, fixed mounting has supporting baseplate 2 on the support bar 1, the same fixed mounting of backup pad 3 is on support bar 1, be provided with guide frame 4 on supporting baseplate 2, reciprocating motion subassembly 5 is located on supporting baseplate 2, upset subassembly 6 sets up on reciprocating motion subassembly 5, the sliding type is connected with supporting component 7 on backup pad 3, crowded subassembly 8 is located on backup pad 3, crowded subassembly 8 is used for extrudeing rubber negative pressure head 103, break subassembly 9 sets up on support bar 1, blood sampling subassembly 10 for the blood sampling locates on reciprocating motion subassembly 5.

The reciprocating assembly 5 comprises an electric push rod 51, a guide bar 52, a movable sleeve 53, a first compression spring 54, a rotating shaft 55, a pulling plate 56, a rubber ring 57 and a chute guide plate 58, fixed mounting has electric putter 51 on the supporting baseplate 2, electric putter 51 telescopic shaft one end welding has gib block 52, the sliding type is connected with movable sleeve 53 on gib block 52, the first compression spring 54 of fixedly connected with in movable sleeve 53 one side, the first compression spring 54 one end of keeping away from movable sleeve 53 couples with gib block 52, the bearing on the movable sleeve 53 is connected with rotation axis 55 through interference fit's mode, the welding of rotation axis 55 bottom has the drawing board 56, the last rubber ring 57 that has cup jointed of rotation axis 55, rubber ring 57 is used for increasing the friction, rubber ring 57 and movable sleeve 53 contact each other, 2 top surfaces of supporting baseplate near electric putter 51 link to each other perpendicularly have chute deflector 58, chute deflector 58 and movable sleeve 53 limit fit.

The overturning assembly 6 comprises a nut sleeve 61 and a screw rod 62, the nut sleeve 61 is welded above the chute guide plate 58, the rotating shaft 55 penetrates through the nut sleeve 61, the screw rod 62 is welded at the top end of the rotating shaft 55 far away from the pulling plate 56, and a thread groove corresponding to the screw rod 62 is formed in the nut sleeve 61.

The supporting assembly 7 comprises a supporting frame 71 and a supporting spring 72, the supporting frame 71 is connected to the supporting plate 3 in a lifting manner, the supporting spring 72 is fixedly connected to the supporting frame 71, and one end of the supporting spring 72 far away from the supporting frame 71 is connected with the supporting plate 3.

The squeezing component 8 comprises a first support plate 81, a movable lower pressure rod 82 and a second compression spring 83, the blood sampling component 10 is provided with a second support plate 84, the second support plate 84 is connected with an extrusion plate 85 in a sliding mode, the extrusion plate 85 is in contact with the movable lower pressing rod 82, the movable lower pressing rod 82 is used for pushing the extrusion plate 85 to move towards the direction close to the electric push rod 51, the extrusion plate 85 is in contact with the support frame 71, the extrusion plate 85 is connected with a first extension spring 86, and one end of the first extension spring 86 far away from the extrusion plate 85 is fixedly connected with the second support plate 84.

The punching assembly 9 comprises a lower pressing plate 91, a second extension spring 92 and an opposite-nature limiting rod 93, third compression spring 94, spacing strip 95 and spacing spring 96, lower clamp plate 91 connects on support bar 1 with the mode of liftable, lower clamp plate 91 and pulling plate 56 contact, the rigid coupling has second extension spring 92 on lower clamp plate 91, the second extension spring 92 one end of keeping away from lower clamp plate 91 couples with support bar 1, opposite sex gag lever post 93 sliding type is connected on guide frame 4, opposite sex gag lever post 93 and support bar 1 spacing connection, the last hookup of opposite sex gag lever post 93 has a pair of third compression spring 94, the third compression spring 94 one end of keeping away from opposite sex gag lever post 93 couples with guide frame 4, the last sliding type of opposite sex gag lever post 93 of keeping away from support bar 1 is connected with spacing strip 95, spacing strip 95 is used for blocking lower clamp plate 91, be connected with spacing spring 96 between spacing strip 95 and the opposite sex gag lever post 93.

Blood sampling subassembly 10 is including supporting guide frame 101, blood sampling tube 102, rubber negative pressure head 103, plasticity wedge strip 104 and fourth compression spring 105, the welding has supporting guide frame 101 on the chute deflector 58, second extension board 84 welds in supporting guide frame 101 one side, support frame 71 and supporting guide frame 101 contact, stripper plate 85 and supporting guide frame 101 contact, the distributive type has placed blood sampling tube 102 that is used for taking a blood sample in supporting guide frame 101, blood sampling tube 102 has equally been placed on the support frame 71, one of them blood sampling tube 102 and stripper plate 85 contact, stripper plate 85 is used for extrudeing rubber negative pressure head 103, be provided with rubber negative pressure head 103 on the blood sampling tube 102, sliding connection has plasticity wedge strip 104 on the blood sampling tube 102, plasticity wedge strip 104 is used for blocking the pull plate 56, the hookup has a pair of fourth compression spring 105 between plasticity wedge strip 104 and the blood sampling tube 102.

The disposable sterilizing buffer pad 11 is placed on the support plate 3, the disposable sterilizing buffer pad 11 is used for sterilizing fingers, and the disposable sterilizing buffer pad 11 is also used for isolating the fingers from the support plate 3.

This equipment is connected with thrust unit, thrust unit promotes heparin tube 102 to supporting guide frame 101 on, and then promotes heparin tube 102 to the support frame 71 on, heparin tube 102 bottom is provided with the needle tubing, the inside alcohol that has been stored of disposable disinfection blotter 11, the user is with the 11 covers of disposable disinfection blotter on the finger, disposable disinfection blotter 11 disinfects the finger, place the finger again on backup pad 3, disposable disinfection blotter 11 keeps apart finger and backup pad 3, prevent that the finger from being infected with the bacterium on the backup pad 3.

The user manually controls the electric push rod 51 to contract, the electric push rod 51 contracts to drive the guide strip 52 and the upper device thereof to move downwards, the screw rod 62 is meshed with the nut sleeve 61, the screw rod 62 and the upper device thereof clockwise rotate ninety degrees through the action of the nut sleeve 61, the rubber ring 57 generates friction with the rotating shaft 55 to prevent the rotating shaft 55 and the upper device thereof from rotating too much, then the movable sleeve 53 and the upper device thereof move towards the direction far away from the electric push rod 51 through the action of the chute guide plate 58, the first compression spring 54 is compressed, the guide strip 52 and the upper device thereof continue to move downwards, the pulling plate 56 can be contacted with the blood sampling tube 102 on the supporting frame 71, the pulling plate 56 can push the plastic wedge-shaped strip 104 to move towards the direction close to the second support plate 84, and then the plastic wedge-shaped strip 104 can clamp the pulling plate 56 through the resetting action of the fourth compression spring 105.

The guide strip 52 and the device thereon continue to move downwards, the pulling plate 56 will push the blood collection tube 102 downwards through the plastic wedge strip 104, the blood collection tube 102 will push the support frame 71 downwards, the needle tube on the blood collection tube 102 pricks the finger, and the disposable disinfection cushion 11 cushions the finger. In the process, the pulling plate 56 is contacted with the movable depression bar 82, the pulling plate 56 pushes the movable depression bar 82 to move downwards, the movable depression bar 82 pushes the extrusion plate 85 to move towards the direction close to the electric push rod 51, the extrusion plate 85 extrudes the rubber negative pressure head 103, and the rubber negative pressure head 103 and air inside the blood collection tube 102 are extruded out from the needle tube, so that the pressure inside the rubber negative pressure head 103 and the blood collection tube 102 is reduced.

User's manual control electric putter 51 slowly extends, electric putter 51 extends and drives gib block 52 and the upper apparatus upward movement thereof, pull plate 56 promotes heparin tube 102 upward movement through plasticity wedge strip 104, pull plate 56 and the separation of activity depression bar 82 down, the second compression spring 83 of compressed resets and drives activity depression bar 82 upward movement and reset, stripper plate 85 and the separation of activity depression bar 82 down, the first extension spring 86 of compressed resets and drives stripper plate 85 towards keeping away from electric putter 51 direction motion, stripper plate 85 no longer extrudees rubber negative pressure head 103, rubber negative pressure head 103 expands in with blood suction heparin tube 102.

By the cooperation of the chute guide plate 58 and the first compression spring 54, the movable sleeve 53 and the upper device thereof move toward the direction close to the electric push rod 51, when the screw rod 62 is engaged with the nut sleeve 61, through the action of the nut sleeve 61, the screw rod 62 and the upper device thereof rotate anticlockwise for ninety degrees to reset, the medical staff holds the test tube under the blood sampling tube 102 by hand, the test tube pushes the opposite sex limiting rod 93 and the upper device thereof to move towards the direction close to the support frame 71, the guide strip 52 and the upper device thereof continue to move upwards, the blood sampling tube 102 pushes the lower pressing plate 91 to move upwards, the lower pressing plate 91 pushes the limiting strip 95 to move towards the direction far away from the support frame 71, and then the limiting strip 95 clamps the lower pressing plate 91 through the resetting action of the limiting spring 96, meanwhile, the supporting strip 1 can extrude the rubber negative pressure head 103, so that blood in the blood collection tube 102 is extruded to the test tube, and blood sampling is completed.

At last the staff takes the test tube away, compressed third compression spring 94 resets and drives opposite sex gag lever post 93 and the device of going up and move towards keeping away from support frame 71 direction, spacing strip 95 no longer blocks holding down plate 91, it resets and drives holding down plate 91 downstream to reset by tensile second extension spring 92, the quick downstream of holding down plate 91 strikes blood sampling tube 102, plasticity wedge strip 104 receives the impact force and can take place the fracture, plasticity wedge strip 104 no longer blocks pulling plate 56, blood sampling tube 102 receives the influence of gravity and drops downwards, blood sampling tube 102 passes through guide frame 4 landing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.