Rapid and uniform blood sample mixing device

Abstract

The utility model discloses a blood sample rapid uniform mixing device which comprises a rotating shaft, the rotating shaft is rotatably installed on a base, a U-shaped plate is installed on the rotating shaft, a placing plate is installed at the bottom of the inner side of the U-shaped plate, a first cushion block is installed on the front inner side wall of the U-shaped plate, and a row of guide rods are installed on the rear side wall of the U-shaped plate in a sliding mode. A pressing plate parallel to the front side wall of the U-shaped plate is arranged on the inner side of the U-shaped plate, the front ends of all the guide rods are fixed to the back face of the pressing plate, a second cushion block is installed on the front face of the pressing plate, all the guide rods are sleeved with springs, and the springs abut between the rear inner side wall of the U-shaped plate and the back face of the pressing plate; according to the device, a guide rod, a pressing plate and a spring are arranged to be matched, a test tube placed on a placing plate can be clamped, a limiting block on a cylinder is arranged to be matched with a groove in the inner side wall of a round through hole of a U-shaped plate, the limiting block penetrates through the groove, then the cylinder is rotated, the pressing plate can be made to be away, and therefore a user can conveniently place the test tube on the placing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a blood sample rapid mixing device. Background Art

[0002] When performing blood tests, in order to obtain accurate test results, it is necessary to mix the blood samples before testing. The existing mixing method usually uses a long-axis rocker mixer to mix the blood samples. The existing long-axis rocker mixer usually has a U-shaped plate, and a row of V-shaped grooves are arranged at the inner bottom of the U-shaped plate. When using the instrument, the test tube containing the blood sample is placed flat on the V-shaped grooves of the instrument, and then the U-shaped plate is controlled to rotate back and forth, so as to achieve the effect of mixing the blood sample. However, when the existing long-axis rocker mixer is used, since the test tube is directly placed on the V-shaped grooves without fixing the test tube, the test tube is prone to slide back and forth in the V-shaped grooves when the U-shaped plate rotates, resulting in frequent collisions between the test tube and the front and rear side walls of the U-shaped plate and damage.

[0003] Therefore, we design a blood sample rapid mixing device here. Content of the Utility Model

[0004] The purpose of the utility model is to provide a blood sample rapid mixing device for the deficiencies of the existing technology, so as to solve the problems put forward in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A blood sample rapid mixing device, including a rotating shaft, the rotating shaft is rotatably installed on a base, a U-shaped plate is installed on the rotating shaft, a placing plate is installed at the inner bottom of the U-shaped plate, a first cushion block is installed on the front inner side wall of the U-shaped plate, a row of guide rods are slidably installed on the rear side wall of the U-shaped plate, a pressing plate parallel to the front side wall of the U-shaped plate is arranged inside the U-shaped plate, the front ends of all the guide rods are fixed on the back of the pressing plate, a second cushion block is installed on the front of the pressing plate, and springs are sleeved on all the guide rods, and the springs are abutted between the rear inner side wall of the U-shaped plate and the back of the pressing plate;

[0006] A cylinder perpendicular to the pressing plate is rotatably installed at the central position of the back of the pressing plate, a circular through hole is opened on the rear inner side wall of the U-shaped plate, the rear end of the cylinder passes through the circular through hole and a knob is installed, two limit blocks symmetrically arranged about the axis of the cylinder are installed on the side of the cylinder, and two grooves symmetrically arranged about the axis of the circular through hole are opened on the side wall of the circular through hole of the U-shaped plate, and the limit blocks can pass through the grooves inside the circular through hole.

[0007] Preferably, the base includes a housing, a vertical plate, and two connecting columns. The vertical plate is located on the left side of the housing. Both connecting columns are fixedly installed between the housing and the vertical plate. The rotating shaft is rotatably installed between the housing and the vertical plate. A controller is installed on the top of the housing. A speed reducer and a servo motor are installed in the inner cavity of the housing. The output shaft of the servo motor is connected to the input end of the speed reducer. The right end of the rotating shaft is arranged in the inner cavity of the housing and is equipped with a rocker. The output end of the speed reducer is equipped with a crank. A connecting rod is rotatably connected between the rocker and the crank.

[0008] Preferably, two fixing blocks are installed on the rotating shaft and are distributed left and right. Grooves are provided in the front and rear of each fixing block. Two pairs of fixing plates are installed at the bottom of the U-shaped plate and are distributed left and right. The two pairs of fixing plates are respectively inserted into the grooves of the two fixing blocks and are fixed to the fixing blocks by screws.

[0009] Preferably, a horizontally transverse slot is opened at the inner bottom of the U-shaped plate. A inserting bar is installed at the bottom of the placing plate. The placing plate is installed at the inner bottom of the U-shaped plate through the cooperation of the inserting bar and the slot. Magnets are inlaid at the inner bottom of the U-shaped plate, and iron sheets are inlaid at the corresponding positions at the bottom of the placing plate.

[0010] Preferably, a row of strip-shaped blocks with an isosceles triangle cross-section are installed on the top of the placing plate.

[0011] Compared with the prior art, the present utility model provides a blood sample rapid mixing device, which has the following beneficial effects:

[0012] 1. For this blood sample rapid mixing device, by setting the guide rod, the pressing plate and the spring in cooperation, the test tube placed on the placing plate can be clamped, so as to prevent the test tube from sliding on the placing plate when the U-shaped plate rotates;

[0013] 2. For this blood sample rapid mixing device, by setting the limiting block on the cylinder to cooperate with the groove on the inner side wall of the circular through-hole of the U-shaped plate, allowing the limiting block to pass through the groove and then rotating the cylinder, the pressing plate can be moved out of the way, thus facilitating the user to place or take out the test tube on the placing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the base structure of the present utility model;

[0016] Figure 3 is a schematic diagram of the internal structure of the housing of the present utility model;

[0017] Figure 4 is a schematic diagram of the installation of the rotating shaft and the U-shaped plate of the present utility model;

[0018] Figure 5Schematic diagram of the U-shaped plate structure of the present utility model;

[0019] Figure 6 Schematic diagram of the opening of the pressing plate of the present utility model;

[0020] Figure 7 Schematic diagram of the placement plate structure of the present utility model.

[0021] Reference numerals: 1, housing; 2, vertical plate; 3, connecting column; 4, rotating shaft; 4-1, fixing block; 5, U-shaped plate; 5-1, fixing plate; 5-2, slot; 5-3, magnet; 6, placement plate; 6-1, strip-shaped block; 6-2, insertion strip; 6-3, iron sheet; 7, first cushion block; 8, guide rod; 9, pressing plate; 10, second cushion block; 11, spring; 12, cylinder; 13, knob; 14, limiting block; 15, controller; 16, reducer; 17, servo motor; 18, rocker; 19, crank; 20, connecting rod. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 7 , in this implementation: A rapid blood sample mixing device includes a rotating shaft 4. Please refer to Figure 1 , the rotating shaft 4 is rotatably installed on the base, a U-shaped plate 5 is installed on the rotating shaft 4, a placement plate 6 is installed on the inner bottom of the U-shaped plate 5, a first cushion block 7 is installed on the front inner wall of the U-shaped plate 5, a row of guide rods 8 are slidably installed on the rear side wall of the U-shaped plate 5, a pressing plate 9 parallel to the front side wall of the U-shaped plate 5 is arranged inside the U-shaped plate 5, the front ends of all the guide rods 8 are fixed to the back of the pressing plate 9, a second cushion block 10 is installed on the front surface of the pressing plate 9, springs 11 are sleeved on all the guide rods 8, and the springs 11 are abutted between the rear inner wall of the U-shaped plate 5 and the back of the pressing plate 9. The distance between the pressing plate 9 and the front side wall of the U-shaped plate 5 is smaller than the length of the test tube. When the test tube is placed on the placement plate 6, the test tube is perpendicular to the pressing plate 9. When the test tube is placed on the placement plate 6, the spring 11 will squeeze the pressing plate 9 to press the pressing plate 9 against the test tube, so as to clamp the test tube between the first cushion block 7 and the second cushion block 10. The first cushion block (7) and the second cushion block (10) are both made of rubber blocks, which can play a certain protective role for the test tube;

[0024] A cylinder 12 perpendicular to the pressing plate 9 is rotatably installed at the central position on the back surface of the pressing plate 9. A circular through-hole is formed on the inner rear wall of the U-shaped plate 5. The rear end of the cylinder 12 passes through the circular through-hole and a knob 13 is installed. Two limit blocks 14 symmetrically arranged left and right with respect to the axis of the cylinder 12 are installed on the side surface of the cylinder 12. Two grooves symmetrically arranged left and right with respect to the axis of the circular through-hole are formed on the inner side wall of the circular through-hole of the U-shaped plate 5. The limit blocks 14 can pass through the grooves on the inner side of the circular through-hole. Please refer to Figure 5 and Figure 6 , push the pressing plate 9 backward to make the limit blocks 14 pass through the grooves on the inner side wall of the circular through-hole of the U-shaped plate 5, rotate the knob 13 to stagger the positions of the limit blocks 14 and the grooves. At this time, release the pressing plate 9, and the limit blocks 14 will abut against the rear side wall of the U-shaped plate 5, causing the pressing plate 9 to give way, so as to facilitate the user to place a test tube on the placing plate 6. Then rotate the knob 13 to align the limit blocks 14 with the grooves, and the elastic force of the spring 11 will cause the pressing plate 9 to press the test tube just placed on the placing plate 6.

[0025] Please refer to Figure 2 and Figure 3 , the base includes a housing 1, a vertical plate 2 and two connecting columns 3. The vertical plate 2 is located on the left side of the housing 1. Both connecting columns 3 are fixedly installed between the housing 1 and the vertical plate 2. A rotating shaft 4 is rotatably installed between the housing 1 and the vertical plate 2. A controller 15 is installed on the top of the housing 1. A speed reducer 16 and a servo motor 17 are installed in the inner cavity of the housing 1. The servo motor 17 is controlled by the controller 15. The output shaft of the servo motor 17 is connected to the input end of the speed reducer 16. The right end of the rotating shaft 4 is arranged in the inner cavity of the housing 1 and a rocker 18 is installed. The output end of the speed reducer 16 is installed with a crank 19. A connecting rod 20 is rotatably connected between the rocker 18 and the crank 19. The rocker 18, the crank 19 and the connecting rod 20 together form a crank-rocker mechanism. The servo motor 17 can drive the crank 19 to rotate through the speed reducer 16, and then drive the rocker 18 to swing through the transmission of the connecting rod 20, so that the rotating shaft 4 rotates reciprocally, thereby driving the U-shaped plate 5 on the rotating shaft 4 to rotate reciprocally.

[0026] Please refer to Figure 4 , two fixing blocks 4-1 distributed left and right are installed on the rotating shaft 4. Grooves are arranged in front of and behind each fixing block 4-1. Two pairs of fixing plates 5-1 distributed left and right are installed at the bottom of the U-shaped plate 5. The two pairs of fixing plates 5-1 are respectively inserted into the grooves of the two fixing blocks 4-1 and fixed to the fixing blocks 4-1 by screws. By fixing the fixing blocks 4-1 and the fixing plates 5-1 with screws, the U-shaped plate 5 can be fixedly installed on the rotating shaft 4. Removing the screws can disassemble the U-shaped plate 5 from the rotating shaft 4.

[0027] Please refer to Figures 5 - 7The inner bottom of the U-shaped plate 5 is provided with left and right horizontal slots 5-2, and the bottom of the placement plate 6 is installed with an insertion strip 6-2. The placement plate 6 is installed on the inner bottom of the U-shaped plate 5 through the cooperation of the insertion strip 6-2 and the slot 5-2. The placement plate 6 is detachable and replaceable, and a magnet 5-3 is inlaid on the inner bottom of the U-shaped plate 5, and an iron sheet 6-3 is inlaid at the corresponding position of the bottom of the placement plate 6. The function of the magnet 5-3 and the iron sheet 6-3 is to fix the position of the placement plate 6 on the U-shaped plate 5. A row of strip blocks 6-1 with an isosceles triangle cross-section is installed on the top of the placement plate 6. The strip blocks 6-1 arranged side by side can form a row of V-shaped grooves on the placement plate 6 for placing test tubes. The placement plate 6 installed on the U-shaped plate 5 has a V-shaped groove perpendicular to the front and rear side walls of the U-shaped plate 5. By replacing the placement plates 6 with V-shaped grooves of different widths, the device can be adapted to more types of test tubes.

[0028] The working principle and use process of the utility model are as follows: when the blood sample rapid mixing device is used, the pressure plate 9 is first pushed backward to make the limit block 14 pass through the groove on the inner wall of the round through hole of the U-shaped plate 5, and then the knob 13 is turned to stagger the position of the limit block 14 and the groove, and then the pressure plate 9 is released. At this time, the limit block 14 is against the rear wall of the U-shaped plate 5, so that the pressure plate 9 makes way, and the blood sample test tube to be mixed is placed on the V-shaped groove of the placement plate 6, and then the knob 13 is turned to align the limit block 14 with the groove. The elastic force of the spring 11 makes the pressure plate 9 press the test tube just placed on the placement plate 6, thereby fixing the test tube to prevent the test tube from sliding on the V-shaped groove. After the mixing is completed, the previous operation is repeated to make the pressure plate 9 make way, and the test tube can be taken out.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rapid blood sample mixing device, comprising a rotating shaft (4), characterized in that: The rotating shaft (4) is rotatably mounted on the base. A U-shaped plate (5) is mounted on the rotating shaft (4). A placing plate (6) is mounted on the inner bottom of the U-shaped plate (5). A first cushion block (7) is mounted on the front inner side wall of the U-shaped plate (5). A row of guide rods (8) is slidably mounted on the rear side wall of the U-shaped plate (5). A pressing plate (9) parallel to the front side wall of the U-shaped plate (5) is arranged inside the U-shaped plate (5). The front ends of all the guide rods (8) are fixed on the back surface of the pressing plate (9). A second cushion block (10) is mounted on the front surface of the pressing plate (9). Springs (11) are sleeved on all the guide rods (8), and the springs (11) abut between the rear inner side wall of the U-shaped plate (5) and the back surface of the pressing plate (9). A cylinder (12) perpendicular to the pressing plate (9) is rotatably mounted at the central position of the back surface of the pressing plate (9). A circular through hole is formed in the rear inner side wall of the U-shaped plate (5). The rear end of the cylinder (12) passes through the circular through hole and a knob (13) is mounted. Two limiting blocks (14) symmetrically arranged left and right with respect to the axis of the cylinder (12) are mounted on the side surface of the cylinder (12). Two grooves symmetrically arranged left and right with respect to the axis of the circular through hole are formed in the inner side wall of the circular through hole of the U-shaped plate (5), and the limiting blocks (14) can pass through the grooves inside the circular through hole.

2. The rapid blood sample mixing device according to claim 1, characterized in that: The base includes a housing (1), a vertical plate (2) and two connecting columns (3). The vertical plate (2) is located on the left side of the housing (1). Both connecting columns (3) are fixedly mounted between the housing (1) and the vertical plate (2). The rotating shaft (4) is rotatably mounted between the housing (1) and the vertical plate (2). A controller (15) is mounted on the top of the housing (1). A speed reducer (16) and a servo motor (17) are mounted in the inner cavity of the housing (1). The output shaft of the servo motor (17) is connected to the input end of the speed reducer (16). The right end of the rotating shaft (4) is arranged in the inner cavity of the housing (1) and a rocker (18) is mounted. The output end of the speed reducer (16) is mounted with a crank (19). A connecting rod (20) is rotatably connected between the rocker (18) and the crank (19).

3. The rapid blood sample mixing device according to claim 1, characterized in that: Two fixing blocks (4-1) distributed left and right are mounted on the rotating shaft (4). Grooves are arranged in front of and behind each fixing block (4-1). Two pairs of fixing plates (5-1) distributed left and right are mounted at the bottom of the U-shaped plate (5). The two pairs of fixing plates (5-1) are respectively inserted into the grooves of the two fixing blocks (4-1) and fixed to the fixing blocks (4-1) by screws.

4. A rapid blood sample mixing device according to claim 1, wherein: A horizontally transverse slot (5-2) is formed in the inner bottom of the U-shaped plate (5). An insertion bar (6-2) is mounted at the bottom of the placing plate (6). The placing plate (6) is mounted on the inner bottom of the U-shaped plate (5) through the cooperation of the insertion bar (6-2) and the slot (5-2). A magnet (5-3) is inlaid on the inner bottom of the U-shaped plate (5), and an iron sheet (6-3) is inlaid at the corresponding position of the bottom of the placing plate (6).

5. A rapid blood sample mixing device according to claim 1, wherein: A row of strip-shaped blocks (6-1) with an isosceles triangle cross-section are mounted on the top of the placing plate (6).

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