CN116078454B

CN116078454B - Sampling test tube

Info

Publication number: CN116078454B
Application number: CN202310267792.8A
Authority: CN
Inventors: 张潇尹
Original assignee: Zhejiang Aicor Medical Technology Co ltd
Current assignee: Zhejiang Aicor Medical Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-25
Anticipated expiration: 2043-03-14
Also published as: CN116078454A

Abstract

The application relates to a sampling test tube, which comprises a test tube body, an end cover, a connecting rod and a sampling spoon, wherein the end cover is in threaded connection with an opening of the test tube body, one end of the connecting rod is fixed on the end face of the end cover, facing the test tube body, of the end cover, one end of the connecting rod is connected with the sampling spoon, and when the end cover is screwed on the test tube body, the connecting rod and the sampling spoon are both positioned in the test tube body. When operating personnel take to this internal object of test tube, unscrew the end cover, need not additionally reuse sampling tool just can take this internal object of test tube, the sample spoon of directly using to connect on the end cover scoops out this internal object of test tube to can control how much of sample, unnecessary part can be through the sample spoon put back in the test tube is originally internal, conveniently take the internal object of test tube.

Description

Sampling test tube

Technical Field

The application relates to the field of test tubes, in particular to a sampling test tube.

Background

Test tubes are instruments commonly used in experiments and can be used to hold liquids or solids.

The patent publication No. CN201157775Y discloses a test tube. The structure of the pipe consists of a pipe body and is characterized in that an elliptical support is arranged at the pipe orifice of the pipe body.

The related technical scheme has the following defects: when taking out and moving the liquid or solid contained in the test tube to another container, an operator needs to use an additional sampling tool to take out and move the object in the test tube because the test tube is directly poured and the sampling amount cannot be controlled, so that the object in the test tube is inconvenient to take.

Disclosure of Invention

In order to facilitate the taking of objects in a test tube, the application provides a sampling test tube.

The application provides a sampling test tube which adopts the following technical scheme:

the utility model provides a sample test tube, includes the test tube body, still includes end cover, connecting rod and sampling spoon, end cover threaded connection is in the opening part of test tube body, the one end of connecting rod is fixed on the one end terminal surface of end cover towards the test tube body, the one end of connecting rod is connected on sampling spoon, when the end cover is screwed on the test tube body, connecting rod and sampling spoon all are located the test tube body.

Preferably, the drip device further comprises a first driving part, a shielding part, a liquid collecting block and a drip rod, wherein a liquid collecting groove for containing liquid is formed in one end, facing the end cover, of the liquid collecting block, one end, far away from the end cover, of the connecting rod is fixed on the bottom wall of the liquid collecting groove, a first sliding groove is formed in the connecting rod in the length direction, a second sliding groove is formed in the bottom wall of the liquid collecting groove in the length direction parallel to the first sliding groove, one end, far away from the liquid collecting groove, of the second sliding groove penetrates through the liquid collecting block, the drip rod is slidably connected in the first sliding groove and the second sliding groove in the length direction of the connecting rod, and the first driving part is used for driving the drip rod to slide;

the connecting rod is close to the connecting channel of seting up on the one end outer wall of collecting tank diapire, first runner has been seted up in the drip bar, drip the pole is run through at the both ends of first runner, drip the pole bottom to keeping away from end cover one side and run through in the bottom of first runner, when a drive piece drive drip the pole and remove to first runner top intercommunication channel, liquid in the collecting tank flows through first runner, and when a drive piece drive drip the pole and remove to first runner top unable intercommunication channel, liquid in the collecting tank can't flow through first runner.

The shielding piece is used for blocking the notch of the liquid collecting groove so as to prevent solids in the test tube body from entering the liquid collecting groove, a mounting opening communicated with the second sliding groove is formed in the bottom surface of the liquid collecting block, the sampling spoon comprises a spoon head and a spoon handle which are fixedly connected with each other, and the spoon handle is in threaded connection with the mounting opening.

Preferably, the first driving member comprises a pressing block and a first spring, a sinking groove is formed in the top surface of the end cover, the pressing block is connected to the sinking groove in a sliding mode along a sliding direction parallel to the dropping rod, the first spring is located in the sinking groove, two ends of the first spring are respectively fixed to the bottom wall of the sinking groove and the pressing block, the pressing block is used for enabling an operator to apply force to press, the top end of the dropping rod is fixed to the pressing block, and when no external force acts on the pressing block, one end of the first flow channel, which is close to the end cover, is always located above the connecting channel.

Preferably, the shielding piece comprises a floating block, a supporting block and a bolt, wherein the floating block is positioned on one side, close to the end cover, of the liquid collecting block, the floating block is sleeved on the connecting rod and is connected to the connecting rod in a sliding mode along the length direction of the connecting rod, the projection of the floating block on the liquid collecting block completely covers the liquid collecting groove, a balance hole is formed in the floating block, the supporting block is fixed on the inner wall of the liquid collecting groove and is opposite to the balance hole, one end of the bolt penetrates through the balance hole and is connected to the supporting block through threads, after the floating block is fixed by the bolt, the floating block is abutted to the top end of the liquid collecting block and seals the liquid collecting groove, and when the floating block is not fixed by the bolt and the liquid level in the test tube body is higher than the liquid collecting groove, a certain gap is reserved between the floating block and the liquid collecting block.

Preferably, a slide way penetrating through the spoon handle is arranged on the end face of one end of the spoon handle, which is parallel to the sliding direction of the dripping rod, a slide block is slidably connected on the slide way, a second spring is arranged in the slide way, the second spring is positioned on one side of the slide block away from the dripping rod, two ends of the second spring are respectively abutted to the slide block and the spoon head, and the driving piece drives the dripping rod to push the slide block to move.

Preferably, the device further comprises a positioning device, wherein the positioning device is used for assisting an operator to clamp the outer wall of the test tube, the positioning device comprises a ring block and a plurality of second driving parts, when the end cover is screwed on the test tube body, the end cover, the drop rod and the test tube body are coaxially arranged, the ring block is detachably connected to the liquid collecting block, and when the ring block is arranged on the liquid collecting block, the ring block and the drop rod are coaxially arranged;

the utility model discloses a test tube, including the ring piece, the ring piece is connected with a plurality of first axles, and a plurality of driving pieces respectively correspond a plurality of first axles, driving piece two drives correspond first axle and rotate, the axis of rotation direction perpendicular to of first axle drips the length direction of pole, be fixed with the clamping jaw on the first axle, the clamping jaw is close to dribble pole one side to keep away from dribble pole one side rotation, the clamping jaw bottom is located the below of dribble pole and collection liquid piece and is used for the outer wall of the external test tube of centre gripping, when a plurality of clamping jaws clamp external test tube outer wall, drip pole and external test tube coaxial setting.

Preferably, the second driving member comprises a torsion spring, a supporting block, a second shaft, a driving belt, a first gear, a second gear, racks and a moving rod, wherein the second shaft is rotationally connected to the annular block along the direction parallel to the rotation axis of the corresponding first shaft, the driving belt is wound on the first shaft and the second shaft, the first gear is coaxially and fixedly connected to the second shaft, the second gear is rotationally connected to the annular block along the direction parallel to the rotation axis of the first gear, the first gear and the second gear are in meshed connection, the racks and the moving rod are both slidingly connected to the liquid collecting block along the sliding direction parallel to the dropping rod, and two ends of the moving rod are respectively fixed on the outer wall of the dropping rod and the corresponding racks;

the torsion spring is coaxially arranged on the first shaft, the abutting block is fixed on the annular block and is positioned at one side of the corresponding clamping jaw far away from the drop rod, and when no external force acts, the torsion spring drives the first shaft to rotate until the clamping jaw always rotates towards one side far away from the drop rod to abut against the corresponding abutting block;

the utility model discloses a drip bar, including the drip bar, the upper edge of drip bar is parallel to the length direction of drip bar, the second runner has been seted up on the outer wall of drip bar along the length direction of drip bar, the top of first runner communicates with the bottom of second runner, first runner communicates with the intercommunication way through the second runner, when no external force acts on pressing the piece, the second runner is located the one side that the intercommunication way is close to the end cover, the rack is located the top of second gear and is not contacted with the second gear, when drip bar begins the drip, the rack meshing is connected on the second gear and is used for driving the second gear rotation.

Preferably, the second flow channel gradually increases from one end close to the end cover to one end far away from the end cover, when the drop rod moves to the second flow channel to be communicated with the communicating channel, the part of the second flow channel, which is opposite to the communicating channel, is a flow position, the size of the flow position is reduced along with the downward movement of the drop rod, and the projection of the end part, close to the drop rod, of the communicating channel on the drop rod always covers the flow position.

The technical effects of the application are mainly as follows:

1. according to the application, by arranging the sampling spoon, when an operator takes an object in the test tube body, the end cover is unscrewed, the object in the test tube body can be taken without using a sampling tool, and the object in the test tube body is directly scooped out by using the sampling spoon connected with the end cover, so that the amount of sampling can be controlled, and the redundant part can be placed back into the test tube body through the sampling spoon, so that the object in the test tube can be taken conveniently.

2. According to the application, the positioning device is arranged, and the plurality of clamping jaws on the positioning device can assist an operator to clamp the outer wall of the external test tube, so that the drop rod is always in a coaxial state with the external test tube, and the drop rod can be prevented from touching the inner wall of the external test tube.

3. According to the application, by arranging the second spring and the sliding block, an operator presses the pressing block to continuously drive the sliding block to move, and the spoon head is driven to vibrate under the action of the second spring, so that objects on the sampling spoon can be helped to shake off, meanwhile, the movable range of the sampling spoon is smaller, and the accuracy of the object falling point can be improved.

Drawings

Fig. 1 is an overall cross-sectional view of an embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

Fig. 4 is a cross-sectional view of a jaw holding an external test tube drop according to an embodiment of the present application.

Fig. 5 is a schematic view of the structure of a drop rod according to an embodiment of the present application.

Reference numerals illustrate: 1. a test tube body; 11. an end cap; 111. sinking grooves; 112. a first limit groove; 12. a connecting rod; 121. a first chute; 122. a connecting channel; 13. a storage table; 2. a liquid dropping device; 21. a liquid collecting block; 211. a liquid collecting tank; 212. a second chute; 213. a mounting port; 214. a magnetic block; 215. a first groove; 216. sealing the groove; 22. a drop rod; 221. a first flow passage; 222. a second flow passage; 223. a flow rate; 3. a first driving member; 31. a pressing block; 311. a first limiting block; 32. a first spring; 4. sampling spoon; 41. a spoon head; 42. a spoon handle; 421. a slideway; 43. a second spring; 44. a slide block; 5. a shield; 51. a floating block; 511. a balance hole; 52. a support block; 53. a bolt; 6. a positioning device; 61. a ring block; 62. a first shaft; 63. a clamping jaw; 631. a rubber block; 64. a permanent magnet; 7. a second driving piece; 71. abutting blocks; 72. a second shaft; 73. a transmission belt; 74. a first gear; 75. a second gear; 76. a rack; 77. a moving rod; 78. and (5) sealing plates.

Description of the embodiments

The present application will be further described in detail below with reference to fig. 1-5, so that the technical solution of the present application can be more easily understood and mastered.

The embodiment of the application discloses a sampling test tube.

Referring to fig. 1-2, a sampling test tube of the present embodiment includes a test tube body 1, an end cap 11, a connecting rod 12 and a drip device 2, the end cap 11 is screwed on an opening of the test tube body 1, and when the end cap 11 is screwed on the test tube body 1, the end cap 11 is coaxially disposed with the test tube body 1.

Referring to fig. 1-3, the liquid dropping device 2 comprises a first driving member 3, a shielding member 5, a liquid collecting block 21 and a dropping rod 22, wherein a liquid collecting groove 211 for containing liquid is formed in the center of the top surface of the liquid collecting block 21, the top end of a connecting rod 12 is fixed on the side surface of the end cover 11 facing the test tube body 1, and the bottom end of the connecting rod 12 is vertically fixed in the center of the bottom wall of the liquid collecting groove 211. The connecting rod 12 and the end cover 11 are coaxially arranged, a first chute 121 is coaxially arranged in the connecting rod 12, and two ends of the first chute 121 respectively penetrate through the connecting rod 12. A second chute 212 is arranged on the bottom wall of the liquid collecting tank 211 along the length direction parallel to the first chute 121, and one end of the second chute 212 away from the liquid collecting tank 211 penetrates through the liquid collecting block 21. The drop rod 22 is slidably connected in the first chute 121 and the second chute 212 along a direction parallel to the length direction of the connecting rod 12, and the driving member 3 is used for driving the drop rod 22 to slide.

Referring to fig. 1-4, a plurality of connecting channels 122 communicated with the sliding grooves are uniformly formed in the outer wall of the bottom end of the connecting rod 12 along the circumferential direction, the length direction of the connecting channels 122 is perpendicular to the sliding direction of the drop rod 22, and the extension line of the length direction of the connecting channels is intersected with the axis of the drop rod 22. A plurality of second flow passages 222 are formed in the outer wall of the drop rod 22 along the length direction parallel to the drop rod 22, and the second flow passages 222 respectively correspond to the connecting passages 122 and are uniformly distributed along the circumferential direction of the drop rod 22. The drop rod 22 is further provided with a plurality of first flow channels 221, the first flow channels 221 respectively correspond to the second flow channels 222, the top ends of the first flow channels 221 are communicated with the bottom ends of the second flow channels 222, and the bottom ends of the first flow channels 221 are converged and communicated together and penetrate through the bottom end of the drop rod 22 towards the side far away from the end cover 11.

Referring to fig. 1 to 4, when the first driving member 3 drives the drip bar 22 to move to the second flow passage 222 to communicate with the communication passage 122, the liquid in the liquid collecting tank 211 flows out from the bottom end of the drip bar 22 through the second flow passage 222 and the first flow passage 221 in this order. When the first driving member 3 drives the drip bar 22 to move to the position where the second flow passage 222 is located above the connecting passage 122, the liquid in the liquid collecting tank 211 cannot flow out through the drip bar 22.

Referring to fig. 1 to 4, the first driving member 3 includes a pressing block 31 and a plurality of first springs 32, a sinking groove 111 is formed in the center of the top surface of the end cap 11, and the pressing block 31 is slidably connected to the sinking groove 111 in a sliding direction parallel to the drop rod 22. The tip of the drop rod 22 is fixed to the center of the bottom surface of the pressing block 31. The plurality of first springs 32 are uniformly distributed in the sinking groove 111 around the drip bar 22 in the circumferential direction, and the top ends and the bottom ends of the first springs 32 are respectively fixed on the bottom surface of the pressing block 31 and the bottom wall of the sinking groove 111, and the pressing block 31 is used for pressing by an operator. Two first limiting blocks 311 are fixed on the side wall of the pressing block 31, the two limiting blocks are respectively positioned on two sides of the pressing block 31, two first limiting grooves 112 are formed in the inner wall of the sinking groove 111, and the two first limiting blocks 311 are respectively connected in the two first limiting grooves 112 in a sliding mode along the sliding direction parallel to the pressing block 31. When no external force acts on the pressing block 31, the first limiting block 311 moves to abut against the top wall of the first limiting groove 112, the top surface of the pressing block 31 is flush with the top surface of the end cover 11, and the second flow passage 222 is located above the connecting passage 122 and is not communicated with the connecting passage 122.

Referring to fig. 1 to 4, when the liquid is contained in the test tube body 1, the liquid collecting block 21 is immersed in the liquid in the test tube body 1, the liquid automatically fills the liquid collecting groove 211, then the operator unscrews the end cap 11 to take out the liquid collecting block 21, and by pressing the pressing block 31, the liquid in the liquid collecting groove 211 can flow out through the first flow channel 221 of the drip bar 22, thereby realizing the drip function.

Referring to fig. 1-4, a sampling test tube of the present embodiment further includes a sampling spoon 4, and a shielding member 5 is used to seal the notch of the liquid collecting tank 211 when the solid is contained in the test tube body 1 so as to prevent the solid in the test tube body 1 from entering the liquid collecting tank 211. The bottom center of the liquid collecting block 21 is provided with a mounting opening 213 communicated with the second chute 212, the sampling spoon 4 comprises a spoon head 41 and a spoon handle 42 which are fixedly connected with each other, one end of the spoon handle 42 is fixed on the spoon head 41, and the other end of the spoon handle 42 is used for being connected with the mounting opening 213 in a threaded mode. When the spoon handle 42 is screwed onto the mounting opening 213, the length direction of the spoon handle 42 is parallel to the length direction of the drip bar 22. The end face of one end of the spoon handle 42 far away from the spoon head 41 is provided with a slide way 421 penetrating through the spoon handle 42, a slide block 44 is slidably connected on the slide way 421 along the length direction parallel to the spoon handle 42, a second spring 43 is arranged in the slide way 421, the second spring 43 is located on one side of the slide block 44 close to the spoon head 41, and two ends of the second spring 43 are respectively fixed on the slide block 44 and the spoon head 41. The projection of the slider 44 onto the drop bar 22 completely covers the drop bar 22, and the drop bar 22 can be used to push the slider 44 for movement.

Referring to fig. 1-4, when solid objects are contained in the test tube, the dropping rod 22 is not suitable for being used and fixed in a dropping manner, an operator uses the shielding piece 5 to block the liquid collecting groove 211, then the sampling spoon 4 is installed on the liquid collecting block 21, the solid in the test tube body 1 is taken out in a scooping manner, and since some objects have certain adhesiveness, the operator needs to shake the sampling spoon 4 to shake the objects on the sampling spoon 4, at the moment, the operator only needs to press the pressing block 31 to continuously drive the sliding block 44 to move, the spoon head 41 is driven to vibrate under the action of the second spring 43, the object shaking on the sampling spoon 4 can be helped, and meanwhile, the moving range of the sampling spoon 4 is smaller, and the accuracy of the object dropping point can be improved.

Referring to fig. 1 to 4, the shield 5 comprises a float block 51, a support block 52 and a bolt 53, wherein the float block 51 is positioned on one side of the liquid collecting block 21 close to the end cover 11, the float block 51 is sleeved on the connecting rod 12 and is connected to the connecting rod 12 in a sliding manner along the length direction of the connecting rod 12, and the projection of the float block 51 on the liquid collecting block 21 completely covers the liquid collecting groove 211. The floating block 51 is provided with a balance hole 511, the supporting block 52 is fixed on the inner wall of the liquid collecting tank 211 and is opposite to the balance hole 511, the bolt 53 is used for fixing the floating block 51 on the liquid collecting block 21, and one end of the bolt 53 passes through the balance hole 511 and is connected to the supporting block 52 in a threaded manner.

Referring to fig. 1 to 4, when the liquid is filled in the test tube body 1 and the liquid level is higher than the liquid collecting tank 211, the unnecessary bolt 53 and the sampling spoon 4 are removed, the floating block 51 floats in the liquid and a certain gap is reserved between the floating block 51 and the liquid collecting tank 21, at this time, the floating block 51 does not influence the liquid to enter the liquid collecting tank 211, and when an operator removes the liquid collecting tank 21 from the liquid level, the floating block 51 moves downwards to be abutted against the liquid collecting tank 21 under the action of gravity and shields the liquid collecting tank 211, so that the liquid in the liquid collecting tank 211 is prevented from flowing out from the top end of the liquid collecting tank 211. When a fixed object is placed in the test tube body 1, the float block 51 is fixed to the liquid collecting block 21 by the bolts 53, the balance holes 511 are blocked by the bolts 53, the liquid collecting groove 211 is blocked by the float block 51, and at this time, the object is sampled by the sampling spoon 4.

Referring to fig. 1-4, a sampling test tube of this embodiment further includes a positioning device 6, the positioning device 6 includes a ring block 61 and a plurality of driving members two 7, the ring block 61 is detachably connected to the liquid collecting block 21, the ring block 61 is in an annular arrangement, a plurality of permanent magnets 64 are fixedly embedded in the bottom surface of the ring block 61, the plurality of permanent magnets 64 are sequentially distributed around the axis direction of the ring block 61, when the drip rod 22 is in a vertical state, the vertical section of the liquid collecting block 21 is in an inverted T-shaped arrangement, the ring block 61 can be sleeved on the liquid collecting block 21, a plurality of magnetic blocks 214 are fixedly embedded in the top surface of the bottom end of the liquid collecting block 21, and the plurality of permanent magnets 64 respectively correspond to the plurality of magnetic blocks 214. The mounting process of the ring block 61 is: the ring block 61 is fitted over the liquid collecting block 21 from above the liquid collecting block 21 downward until the plurality of permanent magnets 64 attract the plurality of magnetic blocks 214, at which time the bottom surface of the ring block 61 abuts against the liquid collecting block 21, and the ring block 61 is disposed coaxially with the drip rod 22.

Referring to fig. 1 to 4, a plurality of first shafts 62 are rotatably connected to the ring block 61, and a plurality of second driving members 7 respectively correspond to the plurality of first shafts 62, and the second driving members 7 drive the corresponding first shafts 62 to rotate. The first shaft 62 is located the ring piece 61 below, and the axis direction of rotation of first shaft 62 is perpendicular to the slip direction of drip bar 22, is fixed with clamping jaw 63 on the first shaft 62, and clamping jaw 63 is the setting of buckling, and clamping jaw 63's top is fixed on corresponding first shaft 62, and clamping jaw 63 rotates along being close to ring piece 61 axis one side to keeping away from ring piece 61 axis one side, and a plurality of clamping jaws 63 evenly distributed around the axis direction of ring piece 61. The bottom of clamping jaw 63 is located the below of drip bar 22 and collection liquid piece 21 and is used for carrying out the centre gripping to the outer wall of external test tube, and when a plurality of clamping jaws 63 centre gripping external test tube, drip bar 22 and the coaxial setting of external test tube, clamping jaw 63 bottom is located the below of drip bar 22 and collection liquid piece 21 all the time.

Referring to fig. 1-4, to reduce damage to the external test tube by the clamping jaw 63, a deformable rubber block 631 is secured to the bottom end of the clamping jaw 63.

Referring to fig. 1-4, in the process of transferring the liquid in the test tube body 1 by the drop rod 22 and dropping the liquid into other external test tubes, the drop rod 22 cannot touch the inner wall of the external test tube according to the specification to pollute the external test tube, in actual operation, an operator may shake his hands and touch the external test tube carelessly, so the plurality of clamping jaws 63 on the positioning device 6 can assist the operator to clamp the outer wall of the external test tube, so that the drop rod 22 is always in a coaxial state with the external test tube, and the drop rod 22 can be prevented from touching the inner wall of the external test tube.

Referring to fig. 1 to 4, the second driving member 7 includes a torsion spring, a support block 71, a second shaft 72, a driving belt 73, a first gear 74, a second gear 75, a rack 76, and a moving lever 77, the second shaft 72 is rotatably connected to the ring block 61 in a direction parallel to the rotation axis of the corresponding first shaft 62, the driving belt is wound around the first shaft 62 and the second shaft 72, the first gear 74 is fixedly connected to the second shaft 72 coaxially, the second gear 75 is rotatably connected to the ring block 61 in a direction parallel to the rotation axis of the first gear 74, the first gear 74 is engaged with the second gear 75, and a part of the second gear 75 protrudes from the ring block 61 toward the side near the drop rod 22. The racks 76 and the moving rods 77 are both connected to the liquid collecting block 21 in a sliding mode along a sliding direction parallel to the drip rod 22, a plurality of first grooves 215 are formed in the outer wall of the liquid collecting block 21, the first grooves 215 are communicated with the second sliding grooves 212, the plurality of first grooves 215 correspond to the plurality of moving rods 77 respectively, the moving rods 77 are connected to the corresponding first grooves 215 in a sliding mode along a sliding direction parallel to the drip rod 22, two ends of the moving rods 77 are fixed to the outer wall of the drip rod 22 and the corresponding racks 76 respectively, the racks 76 are located on the outer side of the liquid collecting block 21, the racks 76 correspond to the plurality of second gears 75 respectively, and the racks 76 are used for being meshed with the second gears 75 and driving the second gears 75 to rotate.

Referring to fig. 1-4, in order to prevent objects from entering the first groove 215 and affecting the movement of the moving rod 77, the sealing plate 78 is fixed at the bottom end of the rack 76, the liquid collecting block 21 is provided with a plurality of sealing grooves 216, the plurality of sealing plates 78 respectively correspond to the plurality of sealing grooves 216, the bottom ends of the sealing plates 78 are slidably connected in the plurality of sealing grooves 216 along the sliding direction parallel to the rack 76, the sealing plates 78 do not affect the movement of the second gear 75, the bottom ends of the sealing plates 78 are always located in the sealing grooves 216, and the sealing plates 78 seal the first groove 215.

Referring to fig. 1-4, a torsion spring is coaxially mounted on the first shaft 62, and a supporting block 71 is fixed on the bottom surface of the ring block 61 and located on the side of the corresponding clamping jaw 63 away from the drop rod 22, and when no external force acts on the clamping jaw 63, the torsion spring drives the first shaft 62 to rotate, so that the clamping jaw 63 always rotates towards the side away from the drop rod 22 to abut against the corresponding supporting block 71.

Referring to fig. 1-4, when the ring block 61 is mounted on the collector block 21 with no external force acting on the push block 31, the second flow passage 222 is located above the connecting passage 122, the rack 76 is located above the second gear 75 and is not in contact with the second gear 75, and the jaws 63 are maximally opened. When the drip bar 22 of the pressing block 31 is pressed to start dripping, the rack 76 moves downwards and is engaged with the second gear 75 to drive the second gear 75 to rotate, and at this time, the plurality of clamping jaws 63 rotate towards one side close to each other, so that the outer wall of the external test tube can be clamped.

Referring to fig. 4-5, the second flow channel 222 gradually increases from the end near the end cover 11 to the end far from the end cover 11, when the drop rod 22 moves to the position where the second flow channel 222 is opposite to the connecting channel 122 and is communicated with the connecting channel 122, the part of the second flow channel 222 opposite to the connecting channel 122 is a flow position 223, the size of the flow position 223 gradually decreases along with the downward movement of the drop rod 22, and the projection of the end, near the drop rod 22, of the connecting channel 122 on the drop rod 22 always covers the flow position 223, namely, the flow rate of the liquid entering the second flow channel 222 is only determined by the size of the flow position 223. As the drop rod 22 moves down gradually, the flow rate of the liquid dropped by the drop rod 22 becomes smaller. Because the diameter size of external test tube is different, when the diameter of external test tube is less, the speed of dropping liquid can become slow, can prevent that the dropping liquid speed from being too fast from causing the condition of dropping liquid too much.

Referring to fig. 1-4, a storage table 13 is fixed on the inner wall of the top end of the test tube body 1, the storage table 13 is in an inverted-T hollow annular arrangement, the ring block 61 and the clamping jaw 63 can be placed on the storage table 13, the top end of the storage table 13 is used for being abutted on the bottom surface of the ring block 61, the clamping jaw 63 is located in an annular space formed between the storage table 13 and the inner wall of the test tube body 1, the storage table 13 does not obstruct the liquid collecting block 21 from moving out of the test tube body 1, and the storage table 13 does not affect the adsorption connection of the ring block 61 and the liquid collecting block 21. When the operator opens the end cap 11 to remove the liquid collecting block 21, the magnetic blocks 214 on the liquid collecting block 21 automatically adsorb the permanent magnets 64 on the ring block 61, so that the ring block 61 is carried out of the test tube body 1 together.

Referring to fig. 1-4, the clamping jaw 63 not only can be used for clamping an external test tube, but also can be stably placed on the placing table, at this time, the clamping jaw 63 is opened to be abutted against the abutting block 71, at this time, the components such as the liquid collecting block 21 and the end cover 11 can be temporarily placed on the placing table and not contacted with the placing table, and the components do not need to be immediately replaced in the test tube body 1, so that some operation steps can be simplified.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims

1. A sampling test tube, comprising a test tube body (1), characterized in that: the novel test tube comprises a test tube body (1), and is characterized by further comprising an end cover (11), a connecting rod (12) and a sampling spoon (4), wherein the end cover (11) is in threaded connection with the opening of the test tube body (1), one end of the connecting rod (12) is fixed on the end face, facing the test tube body (1), of the end cover (11), one end of the connecting rod (12) is connected to the sampling spoon (4), and when the end cover (11) is screwed on the test tube body (1), the connecting rod (12) and the sampling spoon (4) are both positioned in the test tube body (1);

the novel drip device comprises a drip device body, and is characterized by further comprising a first driving part (3), a shielding part (5), a liquid collecting block (21) and a drip rod (22), wherein a liquid collecting groove (211) for containing liquid is formed in one end, facing towards an end cover (11), of the liquid collecting block (21), one end, far away from the end cover (11), of a connecting rod (12) is fixed on the bottom wall of the liquid collecting groove (211), a first sliding groove (121) is formed in the connecting rod (12) in the length direction, a second sliding groove (212) is formed in the bottom wall of the liquid collecting groove (211) in the length direction parallel to the first sliding groove (121), one end, far away from the liquid collecting groove (211), of the second sliding groove (212) penetrates through the liquid collecting block (21), the drip rod (22) is connected in the first sliding groove (121) and the second sliding groove (212) in the length direction of the connecting rod (12), and the first driving part (3) is used for driving the drip rod (22) to slide;

the connecting rod (12) is close to the outer wall of one end of the bottom wall of the liquid collecting groove (211) and is provided with a communication channel (122) communicated with the first sliding groove (121), the drip rod (22) is internally provided with a first flow channel (221), two ends of the first flow channel (221) penetrate through the drip rod (22), the bottom end of the first flow channel (221) penetrates through the bottom end of the drip rod (22) towards the side far away from the end cover (11), when the first driving part (3) drives the drip rod (22) to move to the top end communication channel (122) of the first flow channel (221), liquid in the liquid collecting groove (211) flows out through the first flow channel (221), and when the first driving part (3) drives the drip rod (22) to move to the top end of the first flow channel (221) and cannot be communicated with the communication channel (122), the liquid in the liquid collecting groove (211) cannot flow out through the first flow channel (221).

The shielding piece (5) is used for blocking a notch of the liquid collecting groove (211) so as to prevent solids in the test tube body (1) from entering the liquid collecting groove (211), a mounting opening (213) communicated with the second sliding groove (212) is formed in the bottom surface of the liquid collecting block (21), the sampling spoon (4) comprises a spoon head (41) and a spoon handle (42) which are fixedly connected with each other, and the spoon handle (42) is in threaded connection with the mounting opening (213);

the first driving part (3) comprises a pressing block (31) and a first spring (32), a sinking groove (111) is formed in the top surface of the end cover (11), the pressing block (31) is connected to the sinking groove (111) in a sliding mode parallel to the dropping rod (22), the first spring (32) is located in the sinking groove (111), two ends of the first spring (32) are respectively fixed to the bottom wall of the sinking groove (111) and the pressing block (31), the pressing block (31) is used for enabling an operator to apply force to press, the top end of the dropping rod (22) is fixed to the pressing block (31), and when no external force acts on the pressing block (31), one end, close to the end cover (11), of the first flow channel (221) is always located above the connecting channel (122);

the shielding piece (5) comprises a floating block (51), a supporting block (52) and a bolt (53), wherein the floating block (51) is positioned on one side, close to the end cover (11), of the liquid collecting block (21), the floating block (51) is sleeved on the connecting rod (12) and is connected onto the connecting rod (12) in a sliding mode along the length direction of the connecting rod (12), the projection of the floating block (51) on the liquid collecting block (21) completely covers the liquid collecting groove (211), a balance hole (511) is formed in the floating block (51), the supporting block (52) is fixed on the inner wall of the liquid collecting groove (211) and is opposite to the balance hole (511), one end of the bolt (53) penetrates through the balance hole (511) and is connected onto the supporting block (52) in a threaded mode, after the bolt (53) fixes the floating block (51), the floating block (51) is abutted to the top end of the liquid collecting block (21) and is blocked, and a certain gap is reserved between the floating block (51) and the liquid collecting groove (211) when the bolt (53) is not fixed and the liquid level in the liquid collecting groove (211) is higher than the liquid collecting groove (211);

the spoon is characterized in that a slide way (421) penetrating through the spoon handle (42) is arranged on the end face of one end of the spoon handle (42) towards the drip rod (22), a slide block (44) is connected to the slide way (421) in a sliding mode in parallel to the sliding direction of the drip rod (22), a second spring (43) is arranged in the slide way (421), the second spring (43) is located on one side, away from the drip rod (22), of the slide block (44), two ends of the second spring (43) are respectively abutted to the slide block (44) and the spoon head (41), and the first driving piece (3) drives the drip rod (22) to push the slide block (44) to move.

2. A sampling test tube according to claim 1, wherein: the automatic test tube clamping device comprises a test tube body (1), and is characterized by further comprising a positioning device (6), wherein the positioning device (6) is used for assisting an operator to clamp the outer wall of the test tube, the positioning device (6) comprises a ring block (61) and a plurality of driving pieces II (7), when the end cover (11) is screwed on the test tube body (1), the end cover (11), the drip rod (22) and the test tube body (1) are coaxially arranged, the ring block (61) is detachably connected to the liquid collecting block (21), and when the ring block (61) is arranged on the liquid collecting block (21), the ring block (61) and the drip rod (22) are coaxially arranged;

the utility model discloses a test tube, including ring piece (61), including outer test tube, clamping jaw (63), ring piece (61) are gone up to rotate and are connected with a plurality of first axles (62), a plurality of driving piece two (7) correspond a plurality of first axles (62) respectively, driving piece two (7) drive correspond first axle (62) and rotate, the axis of rotation direction perpendicular to of first axle (62) drip the length direction of pole (22), be fixed with clamping jaw (63) on first axle (62), clamping jaw (63) are close to drip pole (22) one side to keep away from drip pole (22) one side rotation towards, clamping jaw (63) bottom is located drip pole (22) and album liquid below of piece (21) and is used for the outer wall of the external test tube of centre gripping, when a plurality of clamping jaw (63) clamp external test tube outer wall, drip pole (22) and external test tube coaxial setting.

3. A sampling test tube according to claim 2, wherein: the second driving piece (7) comprises a torsion spring, a supporting block (71), a second shaft (72), a driving belt (73), a first gear (74), a second gear (75), a rack (76) and a moving rod (77), wherein the second shaft (72) is rotationally connected to the annular block (61) along the direction parallel to the rotation axis of the corresponding first shaft (62), the driving belt (73) is wound on the first shaft (62) and the second shaft (72), the first gear (74) is coaxially and fixedly connected to the second shaft (72), the second gear (75) is rotationally connected to the annular block (61) along the direction parallel to the rotation axis of the first gear (74), the first gear (74) is in meshed connection with the second gear (75), the rack (76) and the moving rod (77) are both slidingly connected to the annular block (21) along the sliding direction parallel to the drip rod (22), and two ends of the moving rod (77) are respectively fixed to the outer wall of the drip rod (22) and the corresponding rack (76);

the torsion spring is coaxially arranged on the first shaft (62), the abutting block (71) is fixed on the annular block (61) and is positioned on one side, far away from the drop rod (22), of the corresponding clamping jaw (63), and when no external force acts, the torsion spring drives the first shaft (62) to rotate until the clamping jaw (63) always rotates towards one side, far away from the drop rod (22), to abut against the corresponding abutting block (71);

a second flow passage (222) is formed in the outer wall of the drop rod (22) in the length direction parallel to the drop rod (22), the top end of the first flow passage (221) is communicated with the bottom end of the second flow passage (222), the first flow passage (221) is communicated with the communicating passage (122) through the second flow passage (222), when no external force acts on the pressing block (31), the second flow passage (222) is located on one side, close to the end cover (11), of the communicating passage (122), the rack (76) is located above the second gear (75) and is not in contact with the second gear (75), and when the drop rod (22) starts to drop, the rack (76) is connected to the second gear (75) in a meshed mode and is used for driving the second gear (75) to rotate.

4. A sampling test tube according to claim 3, wherein: the second flow channel (222) gradually becomes larger along one end close to the end cover (11) to one end far away from the end cover (11), when the drop rod (22) moves to the position where the second flow channel (222) is communicated with the communicating channel (122), the part, which is opposite to the connecting channel (122), of the second flow channel (222) is a flow position (223), the size of the flow position (223) is reduced along with the downward movement of the drop rod (22), and the projection of the end, close to the drop rod (22), of the communicating channel (122) on the drop rod (22) always covers the flow position (223).