CN214252312U - Automatic extrusion mechanism for group B streptococcus detection tube - Google Patents

Abstract

The utility model provides an automatic extrusion mechanism for a group B streptococcus detection tube, which comprises an installation bottom plate, a test tube rack, a first extrusion plate, a second extrusion plate and an extrusion driving assembly; the test tube rack is arranged on the mounting bottom plate; the first extrusion plate and the second extrusion plate are both arranged below the test tube rack, and the first extrusion plate and the second extrusion plate are respectively arranged on two sides of the test tube rack; the second extrusion plate is connected with the output end of the extrusion driving assembly, and is close to or far away from the first extrusion plate under the driving of the extrusion driving assembly; the utility model discloses an extrusion drive assembly drive first stripper plate with the second stripper plate presss from both sides flat operation to the test tube, can effectively improve the heavy suspension efficiency of B clan streptococcus and solution, and degree of automation is high, effectively solves the artifical problem of rocking with extruded complex operation and inefficiency.

Description

Automatic extrusion mechanism for group B streptococcus detection tube

Technical Field

The utility model relates to a technical field of the test tube extrusion, especially an automatic extrusion mechanism for B clan streptococcus test tube.

Background

Group B streptococcus is group B hemolytic streptococcus, is a gram-positive coccus, inhabits the vagina and rectum, is the first pathogenic bacterium in perinatal infection, and can cause early and late infection of newborn infants. Usually, group B streptococcal determinants of pregnancy do not cause maternal and fetal infections; however, during childbirth, group B streptococci in the maternal lower genital tract increase the risk of neonatal infection; particularly, after the fetal membrane is broken early, the group B streptococcus ascends from the vagina to infect the uterine cavity, the fetus is exposed to the infection environment for a long time, and the infection of the lung is caused by inhaling amniotic fluid infected by the group B streptococcus; secondly, when the fetus passes through the birth canal, the fetus may be infected with group B streptococcus; group B streptococcal infection has a very high mortality rate once neonatal sepsis is induced.

To avoid these problems, routine examination of group B streptococci is typically performed 35-37 weeks of gestation, reducing infection by at least 70% or more, and ensuring neonatal health. Therefore, the rapid clinical identification of group B streptococci is of great importance.

At present, most of the group B streptococcus is clinically and rapidly identified by adopting a colloidal gold chromatography technology, in the operation process of a reagent detection tube of the technology, No. 1 and No. 2 extraction solutions are required to be added, then a swab is placed into the reagent detection tube to be stirred and repeatedly extruded, stirring is continued after standing, the repeated extrusion is carried out, and the extruded liquid is a detection sample. At present, the operation is carried out manually, although the operation process is simple, the operation process is tedious, and if the sample size is large, a large amount of manpower and time are consumed.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide an automatic extrusion mechanism of B clan streptococcus test tube solves the problem of complex operation and the inefficiency of manual extrusion test tube.

To achieve the purpose, the utility model adopts the following technical proposal:

an automatic extrusion mechanism for a group B streptococcus detection tube comprises an installation bottom plate, a test tube rack, a first extrusion plate, a second extrusion plate and an extrusion driving assembly; the test tube rack is arranged on the mounting bottom plate; the first extrusion plate and the second extrusion plate are both arranged below the test tube rack, and the first extrusion plate and the second extrusion plate are respectively arranged on two sides of the test tube rack; the second extrusion plate is connected with the output end of the extrusion driving assembly, and under the driving of the extrusion driving assembly, the second extrusion plate is close to or far away from the first extrusion plate.

Preferably, the extrusion driving assembly comprises a driving element and a sliding assembly, wherein the sliding assembly comprises a guide rod and a driving plate; the two ends of the guide rod are fixedly arranged on the mounting base plate, the driving plate is slidably arranged on the guide rod, the driving plate is connected with the output end of the driving element, the second extrusion plate is arranged on the driving plate, and the driving plate slides along the guide rod under the driving of the driving element, so that the second extrusion plate is driven to be close to or far away from the first extrusion plate.

Preferably, the driving element is an extrusion driving motor, an output end of the extrusion driving motor is provided with an extrusion screw rod, the driving plate is provided with an extrusion screw nut, the extrusion screw nut is connected with the extrusion screw rod in a matching manner, the extrusion screw rod rotates under the driving of the extrusion driving motor, so that the extrusion screw nut is driven to move linearly along the axis direction of the extrusion screw rod, and the second extrusion plate is driven to be close to or far away from the first extrusion plate.

Preferably, the mounting base plate is further provided with an extrusion frame, the first extrusion plate is arranged above the extrusion frame, one end of the extrusion screw rod is arranged on the extrusion frame, and the extrusion screw rod nut is movable between the extrusion frame and the extrusion driving motor.

Preferably, the driving element is an extrusion cylinder, the driving plate is connected to a piston rod of the extrusion cylinder, and under the driving of the extrusion cylinder, the piston rod of the extrusion cylinder drives the driving plate to move linearly along the axis direction of the piston rod of the extrusion cylinder, so as to drive the second extrusion plate to approach or be away from the first extrusion plate.

Preferably, the guide rods are provided with two groups, the two groups of guide rods are respectively arranged at two ends of the drive plate, sliding holes are formed in two ends of the drive plate, and the guide rods are arranged in the sliding holes.

Preferably, the sliding holes of the driving plate are provided with sleeves, the sleeves are sleeved outside the guide rods and are in sliding connection with the guide rods.

Preferably, the test tube rack comprises a plurality of support columns, a first support plate and a second support plate; the bottom of support column set up in mounting plate, first backup pad set up in the top of support column, the second backup pad set up in the middle part on the top of support column, first backup pad is equipped with the guiding hole, the second backup pad is equipped with spacing hole.

Preferably, the first supporting plate is provided with a plurality of guide holes in an arranging manner, the second supporting plate is provided with a plurality of limiting holes in an arranging manner, and the limiting holes and the guide holes are arranged in a vertical direction in an aligning manner.

Preferably, the first extrusion plate and one side of the second extrusion plate are both provided with extrusion protrusions, the middle of each extrusion protrusion is provided with a groove, and each groove is in a semicircular arc shape.

The utility model has the advantages that:

the utility model provides an automatic extrusion mechanism for B clan streptococcus test tube according to above-mentioned content, through extrusion drive assembly drive first stripper plate with the second stripper plate presss from both sides flat operation to the test tube to make the solution in the test tube rock, make the interior wall contact and the extrusion of attached B clan streptococcus's swab and test tube, effectively improve the heavy suspension efficiency of B clan streptococcus and solution, degree of automation is high, effectively solves artifical rocking and extruded complex operation and the problem of inefficiency.

Drawings

FIG. 1 is a schematic perspective view of a device for breaking germs according to an embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of a device for breaking germs according to an embodiment of the present invention;

fig. 3 is a schematic bottom perspective view of a bacteria breaking device according to an embodiment of the present invention;

FIG. 4 is a schematic view of a cross beam of the bacteria breaking device according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of an embodiment of the present invention;

fig. 6 is a schematic view of an embodiment of the present invention with the test tube rack removed;

fig. 7 is a schematic view of a test tube rack according to an embodiment of the present invention

Fig. 8 is a schematic view of a first compression plate according to an embodiment of the present invention.

Wherein: the device comprises a base 1, a moving driving motor 11, a moving driving wheel 12, a moving driven wheel 13, a moving transmission belt 14, a guide rail 10, a test tube extruding mechanism 2, a sliding block 20, a mounting bottom plate 21, a test tube rack 22, a support column 221, a first support plate 222, a second support plate 223, a first extruding plate 23, a second extruding plate 24, an extruding driving component 25, a driving element 251, a guide rod 252, a driving plate 253, an extruding screw 254, an extruding screw nut 255, a sleeve 256, an extruding frame 26, an extruding bulge 2a, a groove 2b, a guide hole 2220, a limiting hole 2230, a liquid adding mechanism 3, a liquid adding gun 31, a liquid adding pump 32, a liquid adding bottle 33, a liquid adding moving frame 4, a gantry frame 41, a top beam 411, a column 412, a cross beam 42, a roller component 43, a vertical roller 431, a sliding plate 432, a liquid adding mounting component 44, a mounting plate 441, a liquid adding roller 442, a vertical driving mechanism, a vertical driving motor 51, a vertical driving motor, The device comprises a vertical screw rod 52, a bearing seat 53, a transverse driving mechanism 6, a transverse driving motor 61, a transverse driving wheel 62, a transverse driven wheel 63 and a transverse transmission belt 64.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A bacteria breaking device for detecting group B streptococcus antigens, which is applied to an embodiment of the present invention, is described below with reference to fig. 1 to 8, and includes a base 1, a test tube extruding mechanism 2, a liquid adding mechanism 3, and a liquid adding moving frame 4; the test tube extrusion mechanism 2 is slidably arranged above the base 1; the liquid adding moving frame 4 comprises a gantry frame 41 and a cross beam 42, wherein the gantry frame 41 is arranged on the base 1, and the cross beam 42 is slidably arranged on the gantry frame 41, so that the cross beam 42 can slide relative to the gantry frame 41 along the vertical direction; the liquid adding mechanism 3 is slidably disposed on the cross beam 42, so that the liquid adding mechanism 3 can move in a sliding manner relative to the cross beam 42 along a horizontal direction.

Specifically, in the prior art, before inserting the swab, a reagent needs to be added to the solution in the test tube, so as to ensure that the group B streptococcus attached to the sampling swab can be fully resuspended, after adding the reagent, the swab is inserted into the test tube, and in order to fully resuspend the group B streptococcus on the swab in the solution in the test tube, it is often necessary to rotate the swab repeatedly and forcefully at least 10 times, so that the group B streptococcus is resuspended in the solution as much as possible, and after standing, the swab also needs to be squeezed on the wall of the test tube, so that the liquid is squeezed as much as possible, in this embodiment, the squeezed test tube is disposed in the test tube squeezing mechanism 2, by sliding the test tube squeezing mechanism 2 directly under the beam 42 of the liquid adding moving frame 4, then the liquid adding mechanism 3 slides along the beam 42 to directly over the test tube squeezing mechanism 2, and the beam 42 moves along the gantry in the vertical direction, the liquid adding mechanism 3 is close to the extruded test tube in the test tube extruding mechanism 2, then the liquid adding mechanism 3 fills the reagent into the extruded test tube, the test tube extruding mechanism 2 slides away from the liquid adding moving frame 4, a sample possibly containing the group B streptococcus is obtained through a swab, the swab attached with the group B streptococcus is inserted into the extruded test tube to be stirred, and the test tube extruding mechanism 2 is driven to extrude the swab, so that the group B streptococcus on the swab is ensured to be fully resuspended in the solution; the utility model discloses not only can pass through liquid feeding mechanism 3 carries out the automatic filling of reagent to the test tube, can also utilize test tube extrusion mechanism 2 carries out automatic extrusion to the test tube to guarantee that the B clan streptococcus on the swab fully resuspended in solution, realize automatic work flow, not only can reduce inspection personnel's intensity of labour, can effectively improve work efficiency moreover.

Further, the gantry frame 41 includes a top beam 411 and upright columns 412 disposed at two ends of the top beam 411, roller assemblies 43 are disposed at two ends of the cross beam 42, each roller assembly 43 is provided with a plurality of vertical rollers 431, and the vertical rollers 431 are respectively disposed at two sides of the upright column 412, so that the roller assemblies 43 are sleeved outside the upright column 412.

Specifically, in this embodiment, two bottom end fixing of stand 412 is in on the base 1, the both ends of back timber 411 then respectively with two the top of stand 412 is connected, the both sides of crossbeam 42 all are equipped with vertical roller 431, vertical roller 431 can along the rolling motion of vertical direction is done to the both sides of stand 412, improves crossbeam 42 is followed stand 412 is linear motion's smoothness nature, in addition vertical roller 431 set up respectively in the both sides of stand 412, stand 412 clamp in between vertical roller 431, can be right crossbeam 42 carries out spacingly, prevents crossbeam 42 from inclining, guarantees crossbeam 42 keeps the level in the motion, thereby guarantees that liquid adding mechanism 3 accurately carries out the injection of reagent to the test tube.

Further, the roller assembly 43 includes a sliding plate 432 and three sets of the vertical rollers 431, the sliding plate 432 is disposed at one end of the cross beam 42, the three sets of the vertical rollers 431 are disposed on the sliding plate 432, one set of the vertical rollers 431 is disposed at one side of the vertical column 412, and the other two sets of the vertical rollers 431 are disposed at the other side of the vertical column 412.

Specifically, in this embodiment, three sets of the vertical pulleys are fixed on the cross beam 42 through the sliding plate 432, one set of the vertical rollers 431 is disposed on one side of the upright 412, and the other two sets of the vertical rollers 431 are disposed on the other side of the upright 412, so that the three sets of the vertical rollers 431 are arranged in a triangular shape, the stability of the roller assembly 43 during movement can be effectively improved, and the stability of the movement of the cross beam 42 is ensured.

Further, one side of the upright column 412 is provided with a vertical driving mechanism 5, the vertical driving mechanism 5 comprises a vertical driving motor 51, a vertical screw rod 52 and a bearing seat 53, the vertical driving motor 51 is arranged at the bottom end of the upright column 412, the bearing seat 53 is arranged at the top end of the upright column 412, one end of the vertical screw rod 52 is connected with the output end of the vertical driving motor 51, the other end of the vertical screw rod 52 is connected with the bearing seat 53, the cross beam 42 is provided with a screw rod sliding block 20, and the screw rod sliding block 20 is in threaded connection with the vertical screw rod 52.

Specifically, in this embodiment, the movement of the cross beam 42 in the vertical direction is driven by the vertical driving mechanism 5, and during specific work, the vertical driving motor 51 is driven to drive the vertical screw rod 52 to rotate on the bearing seat 53, and under the threaded fit connection between the screw rod slider 20 and the vertical screw rod 52, the screw rod slider 20 makes linear translation movement along the axis direction of the vertical screw rod 52, so as to drive the cross beam 42 to make linear translation movement in the vertical direction, and the vertical screw rod 52 is stably driven, so that the stable movement of the cross beam 42 can be ensured.

Further, slidable is equipped with liquid feeding installation component 44 on crossbeam 42, liquid feeding installation component 44 includes mounting panel 441 and three group's liquid feeding gyro wheels 442, and three groups liquid feeding gyro wheels 442 all set up in mounting panel 441, one of them is a set of liquid feeding gyro wheel 442 set up in one side of crossbeam 42, all the other two sets of liquid feeding gyro wheels 442 set up in the opposite side of crossbeam 42, liquid feeding mechanism 3 set up in mounting panel 441.

Specifically, in this embodiment, three groups one of liquid feeding gyro wheel 442 is one set of liquid feeding gyro wheel 442 set up in one side of crossbeam 42, all the other two sets of liquid feeding gyro wheel 442 set up in the opposite side of crossbeam 42 makes three groups liquid feeding gyro wheel 442 is triangle-shaped and arranges, can effectively improve stability when liquid feeding installation component 44 moves, thereby guarantees the steady of 3 movements of liquid feeding mechanism improves the accuracy of liquid feeding mechanism 3 to test tube filling reagent.

Further, a transverse driving mechanism 6 is arranged on the cross beam 42, the transverse driving mechanism 6 comprises a transverse driving motor 61, a transverse driving wheel 62, a transverse driven wheel 63 and a transverse transmission belt 64, the transverse driving wheel 62 and the transverse driven wheel 63 are respectively rotatably arranged at two ends of the cross beam 42, the transverse transmission belt 64 is wound between the transverse driving wheel 62 and the transverse driven wheel 63, and the liquid adding mechanism 3 is connected with the transverse transmission belt 64.

Specifically, in this embodiment, the horizontal movement of the liquid adding mechanism 3 along the cross beam 42 is driven by the transverse driving mechanism 6, specifically, the transverse driving motor 61 is driven to drive the transverse driving wheel 62 to rotate, the transverse transmission belt 64 is respectively connected with the transverse driving wheel 62 and the transverse driven wheel 63 in a matching manner, the transverse driving wheel 62 rotates to drive the transverse transmission belt 64 to perform a winding movement around the transverse driving wheel 62 and the transverse driven wheel 63, so as to drive the liquid adding mechanism 3 mounted on the transverse transmission belt 64 to move, which not only is smooth in movement, but also has low cost for assembling products, and can effectively save cost.

Further, liquid feeding mechanism 3 includes two sets of liquid feeding guns 31, and two sets of liquid feeding guns 31 are connected with reagent input mechanism respectively, reagent input mechanism includes liquid feeding pump 32 and liquid feeding bottle 33, liquid feeding bottle 33 through the liquid feeding pipe with the input of liquid feeding pump 32 is connected, liquid feeding gun 31 through the liquid feeding pipe with the output of liquid feeding pump 32 is connected.

In a specific embodiment, the liquid adding gun 31 includes a liquid adding gun No. 1 and a liquid adding gun No. 2, two sets of the liquid adding guns 31 can respectively add different kinds of 1 and 2 extraction liquids to the test tube to ensure that the group B streptococcus on the swab is fully resuspended, the two sets of the liquid adding guns 31 are respectively connected with two liquid adding bottles 33 containing different reagents through the liquid adding pumps 32, specifically, the two liquid adding bottles 33 are filled with different kinds of 1 and 2 extraction liquids, the liquid adding gun No. 1 is connected with the liquid adding bottle No. 1 containing the reagent 1 through the liquid adding pump No. 1, and the liquid adding gun No. 2 is connected with the liquid adding bottle No. 2 containing the reagent 2 through the liquid adding pump No. 2; when the test tube needs to be filled with the reagent, the reagent is extracted from the liquid filling bottle 33 through the liquid filling pump 32 and is pumped out from the liquid filling gun 31, so that the No. 1 extract and the No. 2 extract are respectively filled into the test tube, the automatic filling of the reagent is realized, and the working efficiency is effectively improved; in addition, in one embodiment, the two charge pumps 32 are disposed at two ends of the rear side of the cross beam 42, so that loads at two ends of the cross beam 42 can be balanced and adjusted, the level of the cross beam 42 is ensured, and the improvement of the motion stability of the cross beam 42 is facilitated.

Further, base 1 is equipped with two guide rails 10, the bottom of test tube extrusion mechanism 2 is equipped with slider 20, slider 20 is located the cover slide rail 10, just slider 20 with guide rail 10 sliding connection.

Specifically, in this embodiment, the both ends of test tube extrusion mechanism 2's bottom all are provided with slider 20 with the cooperation of guide rail 10 is connected, through the cooperation of two sets of sliders 20 guide rails 10, not only can improve test tube extrusion mechanism 2 is the smoothness nature when removing, can also guarantee test tube extrusion mechanism 2 is steady when removing, avoids the filling of circumstances such as slope influence reagent.

Further, base 1 still is equipped with the extrusion and removes actuating mechanism, the extrusion is removed actuating mechanism and is including removing driving motor 11, removing drive wheel 12, removing from driving wheel 13 and removal drive belt 14, remove drive wheel 12 with remove from driving wheel 13 set up respectively in the head and the tail both ends of guide rail 10, remove drive wheel 12 set up in remove driving motor 11's output, remove drive belt 14 around locating remove drive wheel 12 with remove from between the driving wheel 13, test tube extrusion mechanism 2 with remove drive belt 14 and connect.

Specifically, in the present embodiment, the test tube squeezing mechanism 2 is driven by the squeezing movement driving mechanism, specifically, under the driving of the movement driving motor 11, the movable driving wheel 12 rotates, the movable transmission belt 14 is respectively connected with the movable driving wheel 12 and the movable transmission wheel in a matching way, so that the movable driving wheel 12 rotates to drive the movable driving belt 14 to make a winding motion around the movable driving wheel 12 and the movable driven wheel 13, the test tube squeezing mechanism 2 is fixedly installed on the movable driving belt 14, therefore, the test tube extruding mechanism 2 is driven to move by the movement of the movable transmission belt 14, the test tube extruding mechanism 2 is limited between the movable driving wheel 12 and the movable transmission wheel to move, the movement is stable, the cost of assembling products is low, and the cost can be effectively saved.

It should be noted that the test tube extruding mechanism 2 is the automatic extruding mechanism for the group B streptococcus detection tube provided by the present application, and includes a mounting bottom plate 21, a test tube rack 22, a first extruding plate 23, a second extruding plate 24 and an extruding driving component 25; the test tube rack 22 is arranged on the mounting base plate 21; the first extrusion plate 23 and the second extrusion plate 24 are both arranged below the test tube rack 22, and the first extrusion plate 23 and the second extrusion plate 24 are respectively arranged on two sides of the test tube rack 22; the second pressing plate 24 is connected with an output end of the pressing driving assembly 25, and the second pressing plate 24 is close to or far away from the first pressing plate 23 under the driving of the pressing driving assembly 25.

Specifically, in this embodiment, after a test tube containing a solution is placed in the test tube rack 22, a reagent is filled, a swab to which group B streptococcus has adhered is inserted, and then the pressing portion at the bottom of the test tube is pressed, so that the group B streptococcus on the swab can be fully resuspended in the solution, and the first pressing plate 23 and the second pressing plate 24 are respectively positioned at the left side and the right side of the bottom of the test tube, when the test tube needs to be squeezed, the squeezing driving assembly 25 is driven to make the second squeezing plate 24 approach to the first squeezing plate 23, the test tube is flattened by the first pressing plate 23 and the second pressing plate 24, thereby make the solution in the test tube rock, can make the swab of attached to B clan streptococcus contact and the inner wall of test tube and extrude simultaneously, solve artifical rocking and extruded complex operation and the problem of inefficiency.

Further, the pressing driving assembly 25 includes a driving member 251 and a sliding assembly including a guide rod 252 and a driving plate 253; the two ends of the guide rod 252 are fixedly disposed on the mounting base plate 21, the driving plate 253 is slidably disposed on the guide rod 252, the driving plate 253 is connected to an output end of the driving element 251, the second compression plate 24 is disposed on the driving plate 253, and the driving plate 253 slides along the guide rod 252 under the driving of the driving element 251, so as to drive the second compression plate 24 to approach or be away from the first compression plate 23.

Specifically, in this embodiment, when the second squeezing plate 24 needs to be moved, the driving element 251 is started, the driving plate 253 is driven by the driving element 251 to move along the guide rod 252, so as to drive the second squeezing plate 24 to move, the test tube is squeezed close to the first squeezing plate 23, after the squeezing of the test tube is finished, the second squeezing plate 24 is driven to be away from the squeezing plate, and then the test tube is taken out; the driving plate 253 moves on the guide rods 252, and the guide rods 252 can guide the movement of the second compression plate 24 and also can ensure the stability of the movement of the second compression plate 24.

Further, the driving element 251 is an extrusion driving motor, an extrusion screw 254 is disposed at an output end of the extrusion driving motor, the driving plate 253 is provided with an extrusion screw nut 255, the extrusion screw nut 255 is connected with the extrusion screw 254 in a matching manner, and the extrusion screw 254 rotates under the driving of the extrusion driving motor, so as to drive the extrusion screw nut 255 to perform linear motion along the axis direction of the extrusion screw 254, thereby driving the second extrusion plate 24 to be close to or far from the first extrusion plate 23.

Specifically, in this embodiment, the driving element 251 is driven by a motor, the driving motor drives the extrusion screw 254 to rotate, the extrusion screw nut 255 makes a linear translational motion along the axial direction of the extrusion screw 254 under the rotation of the extrusion screw 254, the axial direction of the extrusion screw 254 is parallel to the axial direction of the guide rod 252, and the second extrusion plate 24 is connected to the extrusion screw nut 255, so that the motion of the extrusion screw nut 255 drives the driving plate 253 to move, the driving plate 253 moves more stably through a transmission mode of the screw nut, and the extrusion effect of the second extrusion plate 24 on the test tube is ensured.

Further, the mounting base plate 21 is provided with an extrusion frame 26, the first extrusion plate 23 is disposed above the extrusion frame 26, one end of the extrusion screw 254 is disposed on the extrusion frame 26, and the extrusion screw nut 255 is movable between the extrusion frame 26 and the extrusion driving motor.

Specifically, in this embodiment, the first squeezing plate 23 is mounted on the squeezing frame 26, and the height of the squeezing frame 26 can be changed by adding a gasket or the like during mounting, so as to ensure that the height of the first squeezing plate 23 mounted on the squeezing frame 26 is at the same level as the height of the second squeezing plate 24, thereby ensuring the squeezing effect on the test tube, and in addition, by mounting one end of the squeezing screw 254 on the squeezing frame 26, the rotating motion of the squeezing screw 254 is ensured to be stable, and at the same time, the squeezing screw nut 255 can be limited, so as to prevent the squeezing screw nut 255 from exceeding the stroke of the squeezing screw 254.

Further, the driving element 251 is an extrusion cylinder, the driving plate 253 is connected to a piston rod of the extrusion cylinder, and under the driving of the extrusion cylinder, the piston rod of the extrusion cylinder drives the driving plate 253 to make a linear motion along an axial direction of the piston rod of the extrusion cylinder, so as to drive the second extrusion plate 24 to approach or leave the first extrusion plate 23.

Specifically, in another embodiment, the driving element 251 is driven by an air cylinder, the driving plate 253 is mounted on a piston rod of the extrusion air cylinder, the driving plate 253 is directly driven by the piston rod to move, an axial direction of the piston rod is parallel to an axial direction of the guide rod 252, the structure of the extrusion air cylinder is simple, and the driving plate 253 drives the second extrusion plate 24 to move and respond quickly.

Further, two sets of guide rods 252 are provided, the two sets of guide rods 252 are respectively disposed at two ends of the drive plate 253, sliding holes are disposed at two ends of the drive plate 253, and the guide rods 252 are disposed in the sliding holes.

Specifically, in this embodiment, the two guide rods 252 are respectively disposed at two ends of the drive plate 253, and the guide rods 252 are installed in the sliding holes in a limited manner, so that the deviation and shaking of the drive plate 253 during movement on the guide rods 252 can be reduced, and it can be ensured that the movement of the left and right ends of the drive plate 253 is kept consistent during movement of the drive plate 253, so that the second squeezing plate 24 and the first squeezing plate 23 are parallel to each other, and the squeezing effect on the test tube is ensured.

Further, the sliding holes of the driving plate 253 are provided with sleeves 256, the sleeves 256 are sleeved outside the guide rods 252, and the sleeves 256 are slidably connected with the guide rods 252.

Specifically, in the present embodiment, the sleeve 256 is installed in the sliding hole, and the guide rod 252 is installed in the sleeve 256, so that the contact area between the sleeve 256 and the guide rod 252 is increased compared to the case where the guide rod 252 is directly installed in the sliding hole, and the stability of the movement of the drive plate 253 can be further improved.

Further, the test tube rack 22 includes a plurality of support columns 221, a first support plate 222 and a second support plate 223; the bottom of support column 221 set up in mounting plate 21, first backup pad 222 set up in the top of support column 221, second backup pad 223 set up in the middle part on the top of support column 221, first backup pad 222 is equipped with guiding hole 2220, second backup pad 223 is equipped with spacing hole 2230.

Specifically, in this embodiment, the bottom pressing portion of the test tube is smaller than the tube body of the test tube, so when placing the test tube, the bottom of the test tube is inserted into the guide hole 2220 of the first support plate 222 and then inserted into the limiting hole 2230 of the second support plate 223, the size of the limiting hole 2230 is smaller than the tube body of the test tube, so that the test tube is limited in the limiting hole 2230 and cannot fall off, and is fixed between the first support plate 222 and the second support plate 223, and the pressing portion of the test tube is located below the second support plate 223, which is beneficial to the pressing operation of the test tube.

Further, the first support plate 222 is provided with a plurality of guide holes 2220, the second support plate 223 is provided with a plurality of limiting holes 2230, and the limiting holes 2230 and the guide holes 2220 are aligned in the vertical direction.

Specifically, in this embodiment, the first support plate 222 and the second support plate 223 are provided with a plurality of guide holes 2220 and limiting holes 2230 which are aligned up and down, so that a plurality of test tubes can be placed on the test tube rack 22 at one time, and the extrusion operation is performed at the same time, thereby improving the working efficiency.

Further, the first extrusion plate 23 and one side of the second extrusion plate 24 are both provided with extrusion protrusions 2a, the middle parts of the extrusion protrusions 2a are provided with grooves 2b, and the grooves 2b are in a semi-circular arc shape.

Specifically, in this embodiment, the position that extrusion arch 2a set up corresponds with the mounted position of test tube, and the extrusion test tube is placed in behind test tube rack 22, extrusion arch 2a can accurately extrude the extrusion test tube, the middle part of extrusion arch 2a is equipped with half-circular arc's recess 2B, when extrusion arch 2a extrudees the test tube, the swab that adheres to the B group streptococcus will remain in the test tube space between first stripper plate 23 and the recess 2B of second stripper plate 24 in the extrusion, prevent to the sampling head extrusion of swab and lead to the sampling head damage and have the residue to mix in solution, the influence is to the detection of sample solution, and most solution in the test tube can be crowded to the top of first stripper plate 23 and second stripper plate 24 in addition in the extrusion, a small part solution still can remain in recess 2B, the part of the solution impacts the sampling head of the swab, so that the group B streptococcus attached to the swab is favorably separated from the swab and is dissolved in the solution, and the treatment effect on the swab is improved.

Other components and operations of a bacteria breaking device for detecting group B streptococcus antigens and an automatic extrusion mechanism of a detection tube thereof according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a be used for automatic extrusion mechanism of B group streptococcus test tube which characterized in that: the test tube rack comprises a mounting base plate, a test tube rack, a first extrusion plate, a second extrusion plate and an extrusion driving assembly; the test tube rack is arranged on the mounting bottom plate; the first extrusion plate and the second extrusion plate are both arranged below the test tube rack, and the first extrusion plate and the second extrusion plate are respectively arranged on two sides of the test tube rack; the second extrusion plate is connected with the output end of the extrusion driving assembly, and under the driving of the extrusion driving assembly, the second extrusion plate is close to or far away from the first extrusion plate.

2. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 1, wherein: the extrusion driving assembly comprises a driving element and a sliding assembly, and the sliding assembly comprises a guide rod and a driving plate; the two ends of the guide rod are fixedly arranged on the mounting base plate, the driving plate is slidably arranged on the guide rod, the driving plate is connected with the output end of the driving element, the second extrusion plate is arranged on the driving plate, and the driving plate slides along the guide rod under the driving of the driving element, so that the second extrusion plate is driven to be close to or far away from the first extrusion plate.

3. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 2, characterized in that: the driving element is an extrusion driving motor, an output end of the extrusion driving motor is provided with an extrusion screw rod, the driving plate is provided with an extrusion screw rod nut, the extrusion screw rod nut is connected with the extrusion screw rod in a matching mode, the extrusion screw rod rotates under the driving of the extrusion driving motor, and therefore the extrusion screw rod nut is driven to move along the axis direction of the extrusion screw rod in a straight line mode, and the second extrusion plate is driven to be close to or far away from the first extrusion plate.

4. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 3, wherein: the mounting base plate is further provided with an extrusion frame, the first extrusion plate is arranged above the extrusion frame, one end of the extrusion screw rod is arranged on the extrusion frame, and the extrusion screw rod nut is movable between the extrusion frame and the extrusion driving motor.

5. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 2, characterized in that: the driving element is an extrusion cylinder, the driving plate is connected with a piston rod of the extrusion cylinder, and under the driving of the extrusion cylinder, the piston rod of the extrusion cylinder drives the driving plate to move linearly along the axis direction of the piston rod of the extrusion cylinder, so that the second extrusion plate is driven to be close to or far away from the first extrusion plate.

6. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 2, characterized in that: the guide arms are two groups, the two groups of guide arms are respectively arranged at two ends of the drive plate, sliding holes are formed in two ends of the drive plate, and the guide arms are arranged in the sliding holes.

7. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 6, wherein: the sliding holes of the driving plate are provided with sleeves, the sleeves are sleeved outside the guide rods and are in sliding connection with the guide rods.

8. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 1, wherein: the test tube rack comprises a plurality of support columns, a first support plate and a second support plate; the bottom of support column set up in mounting plate, first backup pad set up in the top of support column, the second backup pad set up in the middle part on the top of support column, first backup pad is equipped with the guiding hole, the second backup pad is equipped with spacing hole.

9. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 8, wherein: the first supporting plate is arranged with a plurality of the guiding holes, the second supporting plate is arranged with a plurality of the limiting holes, and the limiting holes are aligned with the guiding holes in the vertical direction.

10. The automatic squeezing mechanism for the group B streptococcus detection tube according to claim 1, wherein: the extrusion device is characterized in that extrusion protrusions are arranged on one sides of the first extrusion plate and the second extrusion plate, grooves are formed in the middle of the extrusion protrusions, and the grooves are in the shape of a semicircular arc.

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