TWI771101B - Dispense pipette seal - Google Patents

Abstract

A dispensing suction pipe sealing device, comprising at least a suction device, two sealing adjustment devices installed on both sides of the suction device, a dispensing pipe group with a plurality of dispensing suction pipes, and a pusher for performing extraction. A pull rod device and a driving device, the suction device has a lower pedestal, the lower pedestal has a plurality of lower through holes, and an outer bushing, an inner sleeve and an inner rod are sequentially arranged in each of the lower through holes. A top cone head is formed at one end of the inner sleeve, a first sealing ring is sleeved between one end of the inner rod and the bottom of the top cone head, and one end of the inner rod and the first sealing ring are accommodated in the dispensing pipette , the sealing adjustment device is used to squeeze the inner sleeve, so that the first sealing ring is forced to expand outward and closely adhere to the inner wall of the dispensing suction tube, which can improve the sealing of the dispensing suction tube during extraction Effect.

Description

Dispense pipette seal

The present invention relates to a dispensing suction pipe sealing device, which comprises a suction device, two sealing adjustment devices installed on both sides of the suction device, a dispensing pipe set with a plurality of dispensing suction pipes, a A push-pull rod device for extracting and a driving device, the push-pull rod device is driven by the driving device, so that the push-pull rod device generates negative pressure on the suction device, so as to facilitate the extraction of liquid samples that can be dispensed by each dispensing pipette at the same time .

The application of biotechnology has a wide range of levels, and its development helps to be used in medical treatment, health care, diet, and also involves the research of biological genes, heredity, and diseases. It is a very important technological development.

In various applications, it is often necessary to use a dispenser/tube (or pipette/tube) to take liquid samples. Vacuum is used to draw liquid samples. Therefore, the tube must have a good sealing effect to maintain a good suction effect. There is a multi-tube type dispenser/tube that can collect samples from multiple tubes at one time, which is quite useful.

However, for the multi-tube type dispenser/tube, since multiple sets of suction tubes must be inserted during assembly, tight-fitting sealing rings must be used at the joints of the suction tube sockets to maintain a good sealing effect, but it also increases the Difficulty in assembly, especially for the straws with a large number of groups; on the contrary, if the joints of the straws are sleeved with the sealing ring with a loose fit, the sealing strength may be insufficient, affecting the use efficiency.

In addition, for the multi-tube type dispenser/tube, the level and scope used are different, and different groups of the straws must be replaced. If the multi-tube type dispenser/tube is only a single size design, Obviously not practical enough.

Therefore, the present invention designs a sealing adjustment device, which can control the sealing effect between the sealing ring and the straw according to the operation, improve the air density when it is urgent, and can be installed or removed more easily when it is released. , In addition, a connecting device is designed, which can facilitate the connection and fixation of each part structure or the separation and dismantling, so as to facilitate cleaning and maintenance or dismantle and replace the structure with different groups and configurations, and improve the overall practicability, so this is the present invention. Solution for dispensing pipette seals.

The dispensing straw sealing device of the present invention comprises at least:

A suction device has a lower pedestal and an upper pedestal, the lower pedestal is provided with a displacement groove, the bottom surface of the displacement groove is provided with a plurality of lower through holes, and an outer bush is fixed in each of the lower through holes, and each Each of the outer bushings is sleeved with an inner sleeve, each of the inner sleeves is formed with a top cone head at one end near the bottom surface of the lower base, and the other end is formed with a convex portion, and each of the inner sleeves is sleeved with a Inner rods, a fluid channel runs through the interior of each inner rod, and a stopper portion is formed on the outside of each inner rod near the bottom of the top cone head, and the other end of each inner rod away from the stopper portion is provided with a seal A first sealing ring is sleeved between each of the stop parts and each of the top cone heads, and a first elastic member is sleeved between each of the outer bushings and each of the convex parts, and each of the first Two ends of an elastic member are respectively abutted between each of the outer bushings and each of the protruding portions, and a push plate is placed on each of the inner sleeves, and the push plate is on two corresponding outer sides of the push plate. An inclined guide surface is formed on the edge, a plurality of upper through holes corresponding to the number and position of each of the lower through holes are opened on the upper base, the push plate is located in the displacement groove, and each of the sealing ends is sleeved and fixed on each of the lower through holes. in the upper through hole, and a second sealing ring is fixed on the outer side of each of the sealing ends;

Two seal adjustment devices are symmetrically arranged on both sides of the suction device, each of the seal adjustment devices has a push block arranged on the outer side of the push plate, and the push block is also located in the displacement groove, The push block is formed with an inclined push surface on the side close to the inclined guide surface, the inclined push surface can fit with the inclined guide surface, and between the push block and the push plate, one or more second An elastic piece, one or more push elements are fixed on the outside of the push block, each of the push elements extends to the outside of the upper base, and each of the push elements is jointly pivoted with a control element on the outside of the upper base, the control element A protruding end is formed on one side, and the control element can pivot on the outside of the pushing element, so as to control the protruding end to push or disengage the pushing element during pivoting;

A dispensing tube set has a tray that can be joined with the lower base, and a plurality of dispensing through holes corresponding to the number and position of the lower through holes are opened on the tray, and each dispensing through hole is used for A dispensing pipette is installed, and each dispensing pipette has a dispensing chamber inside, the upper end of each dispensing pipette is provided with a connecting port that communicates with the dispensing chamber, and the lower end is provided with a dispensing chamber. The suction ports communicated with the chambers, when the dispensing through holes correspond to the lower through holes, the connecting ports can be inserted into the lower ends of the inner sleeves, and the stopper parts and the first sealing rings can be connected to each other. accommodated in each of the dispensing chambers, so that each of the first sealing rings is slightly attached to the inner wall of each of the dispensing chambers;

A push-pull rod device is arranged above the suction device. The push-pull rod device has an air cavity main body. The air cavity main body is provided with a plurality of air chambers corresponding to the number and position of each of the lower through holes. One end is provided with an air inlet port which is connected with each of the fluid passages, and each of the second sealing rings is fitted between the air cavity main body and each of the sealing ends and sealed around each of the air inlet ports. The other end of the air chamber is provided with a push-pull port, each of the air chambers is provided with a push-pull element, and one end of each of the push-pull elements is sleeved with a third sealing ring, and each of the third sealing rings is connected to the inner part of each of the air chambers. the walls are tightly fitted, and the other end of each of the push-pull elements can protrude outside through each of the push-pull ports; and

a driving device arranged above the push-pull rod device for pulling out each of the push-pull elements through each of the push-pull ports, so that each of the air chambers becomes a vacuum state as each of the push-pull elements is pulled out;

Wherein, when the protruding end pushes the push element, it pushes the push block to move toward the push plate in the horizontal direction, and after the inclined push surface is in contact with the inclined guide surface, the push force in the horizontal direction is transferred to the vertical direction. The push plate further drives the push plate to move downward, and the push plate pushes down the inner sleeves. At that time, the top cone heads are pressed down to the inner edge of the first sealing ring at the same time, so that the restriction Each of the first sealing rings between each of the stopper parts and each of the top cone heads is forced to expand outward, and is in close contact with the inner wall of each of the dispensing chambers, and can be lifted during extraction. The sealing effect of the junction of the dispensing pipettes.

In a preferred embodiment, each of the outer bushings is jointly provided with a support plate, and two ends of each of the first elastic members are respectively abutted between the support plate and each of the protruding portions.

In a preferred embodiment, the driving device uses an electric cylinder.

In a preferred embodiment, the driving device is fixedly provided with a pulling plate, and the pulling plate is fixedly connected with one end of each of the push-pull elements protruding from each of the push-pull ports.

In a preferred embodiment, the suction device and the push-pull rod device are connected and fixed using a connecting device, the connecting device has a set of symmetrical first connecting blocks, and a horizontal level is respectively defined inside each of the first connecting blocks. The two first connecting blocks are fixed to each other with a connecting rod, and a second connecting block is respectively provided above each first connecting block, and the inner side of each second connecting block is respectively opened There is a horizontal second channel, each of the first block and each of the second blocks is located on the two sides corresponding to the suction device and the push-pull rod device, respectively, and the two sides of the upper base are respectively convex outwards A first flange is provided, and two sides of the air cavity main body are respectively provided with a second flange, each of which is used to be inserted in each of the first grooves, and each of the second flanges It is used to be inserted in each of the second channels, so that the suction device and the push-pull rod device are respectively installed between each of the first connecting blocks and each of the second connecting blocks, and the first connecting block on the same side A fastener is installed between the connection block and the second connection block, and the first connection block and the second connection block are connected through the fastener.

In a preferred embodiment, one or more vertical fixing pieces are respectively fixed on each of the second connecting blocks, a third elastic piece is sleeved on each of the fixing pieces, and each of the third elastic pieces is A top block is installed below, each of the third elastic pieces abuts between each of the fixing pieces and each of the top blocks, and each of the top blocks abuts against each of the third elastic pieces and each of the first Between the connecting blocks, when the fastener is released, each top block is acted by the elastic force of each of the third elastic members, and then the first connecting block is pushed away from the direction away from the second connecting block, and at the same time The suction device installed on the first connecting block is separated from the push-pull rod device, so as to facilitate the disassembly of the suction device and the push-pull rod device as a whole.

In a preferred embodiment, one or more fasteners are installed between the tray and the lower base, and the tray and the lower base are connected through the fasteners.

In a preferred embodiment, the top surface of the upper platform seat is provided with a plurality of pins, and the bottom surface of the air cavity main body is provided with a plurality of sockets corresponding to the positions and numbers of the pins, and each of the pins can be inserted into the corresponding the jack.

Other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings.

The terms "top surface", "bottom surface" and "side surface" used to describe the names of components disclosed in the content of the present specification are to help compare the positional relationship between the plate-like structures, and the direction of the actual product structure will follow the pendulum. The corresponding relationship between the placement angle or the position of the user is changed, and the scope equally covered by the present invention cannot be limited accordingly.

The terms "inside" and "inside" used to describe the position of the structure disclosed in the contents of the present specification refer to the position close to the center of the structure body, or the position that is not exposed in use; the term "inward" refers to the direction toward the Close to the center of the structural body, or toward the non-exposed position in use; the terms "outside" and "external" refer to the position away from the center of the structural body, or the position that is exposed in use; the term "outward" refers to Refers to the position away from the center of the structure body, or to the exposed position in use.

The term "on" used to describe the position of the structure disclosed in the content of the present specification refers to any surface position of the structure, and is not commonly referred to as "above" or "upper surface" with a directionality. The terms "above" and "below" used to describe the position of a structure refer to the directionality of the position of the structure under conventional usage.

The terms "fixed", "fixed", "connected", "installed", "sleeved", "sleeved" or "set" disclosed in the contents of the present specification are used to describe the structural combination relationship. It means that multiple structures will not be easily separated or dropped after being combined. It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be It is a direct physical connection, and it can also be indirectly connected through an intermediate medium. It can be the internal connection of two components, such as those combined using threads, tenons, fasteners, nails, adhesives or high-frequency waves, and among them The "nested" or "nested" of one structure is combined outside the other structure.

The terms "forming" or "extending" used to describe the structure combination relationship disclosed in the content of the present specification generally refer to one structure or multiple structures combined into the same body during manufacture, or the same body due to different Corresponding structures produced by position, shape and function.

Please refer to Figures 1 and 2, which are three-dimensional schematic diagrams of the dispensing pipette sealing device of the present invention. As shown in the figures, it at least includes a suction device 1, two sealing adjustment devices 2, a dispensing pipe group 3, and a push-pull rod device 4 and a drive device 5;

3 and 4, the suction device 1 has a lower base 11 and an upper base 19, the lower base 11 has a displacement groove 111 recessed downward from the top surface, and the bottom surface of the displacement groove 111 is A plurality of lower through holes 112 arranged in an average matrix are opened, an outer bushing 12 is fixed in each of the lower through holes 112, and an inner sleeve 13 is sleeved in each of the outer bushings 12. Each of the inner sleeves 13 A top cone head 131 is formed at one end close to the bottom surface of the lower pedestal 11, and a convex portion 132 is formed at the other end. Each of the inner sleeves 13 is sleeved with an inner rod 14, and each of the inner rods 14 has an inner rod 14 running through it. The fluid channel 141 and each of the inner rods 14 are formed with a stopper portion 142 at the bottom near the top cone head 131, and the other end of each of the inner rods 14 away from the stopper portion 142 is provided with a sealing end 143. A first sealing ring 15 is sleeved between the stopper portion 142 and each of the top cone heads 131 , and a support plate 16 is jointly disposed on each of the outer bushings 12 . A first elastic member 17 is sleeved between the protruding portions 132 , and both ends of the first elastic members 17 are respectively abutted between the support plate 16 and each of the protruding portions 132 . A push plate 18 is placed on the tube 13. The push plate 18 is formed with an inclined guide surface 181 on two corresponding outer sides thereof, and the upper base 19 is provided with a plurality of and the number of the lower through holes 112 is the same as that of the lower through holes 112. The upper through holes 191 corresponding to the positions, the push plate 18 is located in the displacement groove 111 , the sealing ends 143 are sleeved and fixed in the upper through holes 191 , and a second sealing end 143 is fixed outside. sealing ring 144;

Among them, please refer to Figures 3, 4 and 5, the two sealing adjustment devices 2 are symmetrically arranged on both sides of the suction device 1 (the following description is only on one side, and some drawings are also presented on one side) ), the seal adjustment device 2 has a push block 21 disposed on the outer side of the push plate 18 , the push block 21 is also located in the displacement groove 111 , and the push block 21 is on the side close to the inclined guide surface 181 An inclined push surface 211 is formed, and the inclined push surface 211 can fit with the inclined guide surface 181 . The push block 21 is provided with one or more second elastic members 212 between the push block 21 and the push plate 18 . One or more push elements 22 are fixed on the outer side of the push block 21 , each of the push elements 22 extends to the outer side of the upper base 19 , and each of the push elements 22 is jointly pivoted with a control element 23 on the outer side of the upper base 19 . A protruding end 231 is formed on one side of the control element 23, and the control element 23 can pivot outside the pushing element 22, so as to control the protruding end 231 to push or disengage the pushing element 22 during pivoting;

Among them, please refer to Figures 3, 4 and 6, the dispensing tube set 3 is arranged below the suction device 1, and the dispensing tube set 3 has a tray 31 on which a plurality of The lower through-holes 112 have dispensing through-holes 311 corresponding to the number and position. Each dispensing through-hole 311 is used for inserting a dispensing pipette 32. Each dispensing pipette 32 has a dispensing chamber 321 inside. The upper end of each dispensing suction pipe 32 is provided with a connecting port 322 that communicates with the dispensing chamber 321, and the lower end is provided with a tapered suction port 323 that communicates with the dispensing chamber 321. When the through hole 311 corresponds to each of the lower through holes 112, each of the connecting ports 322 can be inserted into the lower end of each of the inner sleeves 13, and each of the stop parts 142 and each of the first sealing rings 15 can be accommodated in each of the In the dispensing chamber 321, the first sealing rings 15 are slightly attached to the inner wall of the dispensing chamber 321, so that the dispensing straws 32 are not easily dropped, and the One or more buckles 312 are installed between the tray 31 and the lower base 11 , and the tray 31 and the lower base 11 are connected through the buckles 312 ;

Therefore, please refer to Figs. 4 and 7. When the control element 23 controls the protruding end 231 to push the push element 22, the push element 22 pushes the push block 21 to move toward the push plate 18 in a horizontal direction. , the push plate 18 will squeeze the second elastic member 212, so that the inclined push surface 211 and the inclined guide surface 181 are abutted, and the horizontal thrust will pass through the inclined surface (the inclined push surface 211 and the inclined guide surface 181). 181) Transfer to the vertical direction, and further drive the push plate 18 to move downward. After the push plate 18 is displaced downward, the push plate 18 continues to extend the thrust to press down the inner sleeves 13. At that time, the protrusions 132 will squeeze Press the first elastic member 17, and the top cone heads 131 are simultaneously pressed down to the inner edge of each of the first sealing rings 15, so that the space between the stopper portions 142 and the top cone heads 131 is limited. Each of the first sealing rings 15 is forced to expand outward, and is in close contact with the inner wall of each of the dispensing chambers 321 to enhance the sealing effect with each of the dispensing straws 32;

Wherein, please refer to FIG. 8, the push-pull rod device 4 is disposed above the suction device 1, the push-pull rod device 4 has an air cavity main body 41, and the air cavity main body 41 defines a plurality of through holes corresponding to each of the lower through holes. There are 112 air chambers 42 corresponding to the number and position. One end of each air chamber 42 is provided with an air inlet port 421 connected to each of the fluid passages 141 , and each of the second sealing rings 144 is attached to the air chamber body. 41 and each of the sealing ends 143 and sealed around each of the air inlet ports 421, so that the fluid can smoothly circulate between each of the air chambers 42 and each of the fluid passages 141, and the other end of each of the air chambers 42 is provided with There are push-pull ports 422 , each of the air chambers 42 is provided with a push-pull element 43 , and one end of each of the push-pull elements 43 is sleeved with a third sealing ring 44 , and each of the third sealing rings 44 is connected to each of the air chambers 42 . The inner wall is closely fitted, and the other end of each push-pull element 43 can protrude to the outside through each of the push-pull ports 422;

Among them, please refer to Figures 1 and 8, the driving device 5 uses an electric cylinder and is arranged above the push-pull rod device 4, the driving device 5 is fixed with a pulling plate 51, and the pulling plate 51 is connected to the extension One end of each push-pull element 43 of the push-pull port 422 is fixedly connected to each other;

Therefore, please refer to Figures 1, 8, and 9. After the driving device 5 is activated, the pull plate 51 can pull out the push-pull elements 43 through the push-pull ports 422, since the third sealing rings 44 are It is in close contact with the inner wall of each of the air chambers 42 , so that the inside of each of the air chambers 42 is in a vacuum state as each of the push-pull elements 43 is pulled out.

In the actual operation of the dispensing pipette sealing device of the present invention, please refer to Figs. 4, 7, 8, and 9. The control element 23 is preferentially operated, so that each of the first sealing rings 15 is expanded outward and tightly attached to the The inner wall of each of the dispensing chambers 321 is placed on the inner wall of each of the dispensing chambers 321 to enhance the sealing effect with each of the dispensing pipettes 32, and then the driving device 5 is activated to make each of the air chambers 42 to be in a negative pressure state of vacuum. The fluid channel 141 and each of the dispensing chambers 321 are in communication with each of the air chambers 42 , and the negative pressure state allows external substances to be inhaled into each of the dispensing chambers 321 through each of the suction ports 323 . The liquid agent 6 for dispensing is placed under each of the dispensing suction pipes 32, and the liquid agent 6 can be sucked into each of the dispensing chambers 321. Please refer to FIG. 10, and the suction device 1, each of the The sealing adjustment device 2 , the dispensing tube set 3 , the push-pull rod device 4 and the driving device 5 can be installed on a conveying device 7 , and the liquid agent 6 can be sent to a predetermined position through the conveying device 7 .

Please refer to Figures 11 to 13 for the sealing device of the dispensing straw of the present invention. The suction device 1 and the push-pull rod device 4 can be connected and fixed by a connecting device 8. The connecting device 8 has a set of relatively symmetrical first Connecting blocks 81, the inner side of each first connecting block 81 respectively defines a first horizontal channel 82, and the two first connecting blocks 81 are mutually fixed with a connecting rod 83, and each of the first connecting blocks 81 is fixed to each other. A second connecting block 84 is arranged above the 81, and a horizontal second channel 85 is respectively defined on the inner side of each second connecting block 84, and one or more than one is fixed on each of the second connecting blocks 84 respectively. The vertical fixing members 86, each fixing member 86 is sleeved with a third elastic member 87, and a top block 88 is installed under each third elastic member 87, and each third elastic member 87 is pressed against the between each of the fixing members 86 and each of the top blocks 88 , and each of the top blocks 88 abuts between each of the third elastic members 87 and each of the first connecting blocks 81 ;

Please refer to FIG. 11, each of the first connecting blocks 81 and each of the second connecting blocks 84 are respectively located on the two sides corresponding to the suction device 1 and the push-pull rod device 4, and the two sides of the upper base 19 are respectively facing A first flange 192 protrudes outwardly, and a second flange 411 protrudes outwardly from both sides of the air cavity main body 41 . Each of the first flanges 192 is used to be inserted into each of the first grooves 82 . , each of the second flanges 411 is used to be inserted into each of the second channels 85, so that the suction device 1 and the push-pull rod device 4 are respectively installed on each of the first connecting blocks 81 and each of the second Between the connecting blocks 84, and between the first connecting block 81 and the second connecting block 84 on the same side, a fastener 89 is installed, and the first connecting block 81 and the second connecting block are connected through the fastener 89. 84;

Therefore, please refer to Figures 11 and 13, when the buckle 89 is released, each of the top blocks 88 is subjected to the elastic force of each of the third elastic members 87, so that the first connecting block 81 moves away from the first block 81. The direction of the second connecting block 84 is pushed away, and at the same time, the suction device 1 installed on the first connecting block 81 is separated from the push-pull rod device 4, so as to facilitate the suction device 1 and the push-pull rod device 4 respectively. The whole group is dismantled;

Please refer to FIG. 11, in order to make the combination between the upper base 19 and the air cavity main body 41 more rapid and accurate, a plurality of pins 193 are provided on the top surface of the upper base 19, and the bottom surface of the air cavity main body 41 is provided There are a plurality of insertion holes 412 corresponding to the positions and numbers of the pins 193 . When the push-pull rod device 4 is disposed above the suction device 1 , the insertion pins 193 can be inserted into the corresponding insertion holes 412 .

When compared with other conventional technologies, the dispensing straw sealing device provided by the present invention has the following advantages: 1. Please refer to Fig. 7, through the sealing adjustment device 2, the sealing effect between the first sealing ring 15 and the dispensing pipette 32 can be controlled, and when it is urgent, the first sealing ring 15 and the dispensing pipette can be lifted. The air density between the dispensing straws 32 makes the suction effect more stable; when the dispensing straw 32 is loosened, the dispensing straw 32 can be easily installed or disassembled, so as to improve the convenience and efficiency of disassembly and assembly. 2. Please refer to Fig. 11. The suction device 1 and the push-pull rod device 4 can be connected and fixed through the connecting device 8 or separated and removed. The removed suction device 1 and the push-pull rod device 4 are more convenient for cleaning. For maintenance, similarly, the suction device 1 and the push-pull rod device 4 having different configurations of the number of dispensing groups can also be more conveniently replaced, which improves the overall practicability.

The above-mentioned embodiments are only selected from some preferred embodiments of the present invention, but are not intended to limit the present invention. Anyone familiar with this technical field with ordinary knowledge, after understanding the aforementioned technical features and embodiments of the present invention, Equivalent changes or modifications made without departing from the spirit and scope of the present invention still fall within the scope of the present invention, and the scope of patent protection of the present invention shall be defined by the claims attached to this specification.

1: suction device 11: Get off the pedestal 111: Displacement slot 112: Lower through hole 12: Outer bushing 13: Inner casing 131: top cone head 132: convex part 14: Inner rod 141: Fluid channel 142: Stopper 143: Sealed end 144: Second sealing ring 15: The first sealing ring 16: Bearing plate 17: The first elastic piece 18: Push plate 181: inclined guide surface 19: On the podium 191: upper through hole 192: First flange 193: latch 2: Seal adjustment device 21: Push Block 211: Inclined push surface 212: Second elastic piece 22: Push element 23: Control elements 231: convex end 3: Dispensing tube set 31: Tray 311: Dispensing through hole 312: Buckle 32: Dispense pipette 321: Dispensing chamber 322: connection port 323: Suction port 4: Push-pull rod device 41: Air cavity body 411: Second flange 412: jack 42: Air chamber 421: Inlet port 422: Push-pull port 43: Push-pull element 44: The third sealing ring 5: Drive device 51: Pull plate 6: Liquid 7: Conveying device 8: Connection device 81: The first block 82: The first channel 83: Post 84: Second block 85: Second channel 86: Fixtures 87: Third elastic piece 88: Top Block 89: Buckle

[Fig. 1] is a perspective exploded schematic view of the overall structure of the sealing device for dispensing straws of the present invention. [Fig. 2] is a three-dimensional combined schematic diagram of the overall structure of the sealing device for dispensing straws of the present invention. [Fig. 3] is a three-dimensional exploded schematic diagram of the structure of the suction device, the sealing adjustment device and the dispensing tube group of the dispensing straw sealing device of the present invention. [Fig. 4] is a schematic cross-sectional view of the suction device, the sealing adjustment device, and the dispensing tube group of the dispensing straw sealing device of the present invention. [Fig. 5] is a schematic cross-sectional view of the suction device, the sealing adjustment device, and the dispensing tube group of the dispensing straw sealing device of the present invention. [Fig. 6] is a schematic plan view of the suction device, the sealing adjustment device, and the dispensing tube group of the dispensing straw sealing device of the present invention. [Fig. 7] is a schematic cross-sectional view of the suction device and the sealing adjustment device of the dispensing pipette sealing device of the present invention for sealing. [Fig. 8] is a schematic diagram of the suction device, the sealing adjustment device, the section of the dispensing tube group, and the section of the push-pull rod device of the dispensing straw sealing device of the present invention. [Fig. 9] is a schematic diagram of the suction device, the seal adjustment device, the cross section of the dispensing tube group, and the push-pull rod device of the present invention for the suction device of the dispensing straw sealing device. [Fig. 10] is a three-dimensional schematic diagram of the overall structure of the sealing device of the dispensing pipette combined with the conveying device of the present invention. [Fig. 11] is a perspective exploded schematic view of the suction device, the push-pull rod device combined with the connecting device of the dispensing straw sealing device of the present invention. [Fig. 12] is a perspective view of the suction device, the push-pull rod device combined with the connecting device of the dispensing straw sealing device of the present invention. [Fig. 13] is a schematic cross-sectional view of the suction device and the push-pull rod device combined with the connecting device of the dispensing straw sealing device of the present invention.

1: suction device

2: Seal adjustment device

3: Dispensing tube set

4: Push-pull rod device

5: Drive device

Claims (9)

A dispensing pipette sealing device, comprising at least: A suction device has a lower pedestal and an upper pedestal, the lower pedestal is provided with a displacement groove, the bottom surface of the displacement groove is provided with a plurality of lower through holes, and an outer bush is fixed in each of the lower through holes, and each Each of the outer bushings is sleeved with an inner sleeve, each of the inner sleeves is formed with a top cone head at one end near the bottom surface of the lower base, and the other end is formed with a convex portion, and each of the inner sleeves is sleeved with a Inner rods, a fluid channel runs through the interior of each inner rod, and a stopper portion is formed on the outside of each inner rod near the bottom of the top cone head, and the other end of each inner rod away from the stopper portion is provided with a seal A first sealing ring is sleeved between each of the stop parts and each of the top cone heads, and a first elastic member is sleeved between each of the outer bushings and each of the convex parts, and each of the first Two ends of an elastic member are respectively abutted between each of the outer bushings and each of the protruding portions, and a push plate is placed on each of the inner sleeves, and the push plate is on two corresponding outer sides of the push plate. An inclined guide surface is formed on the edge, a plurality of upper through holes corresponding to the number and position of each of the lower through holes are opened on the upper base, the push plate is located in the displacement groove, and each of the sealing ends is sleeved and fixed on each of the lower through holes. in the upper through hole, and a second sealing ring is fixed on the outer side of each of the sealing ends; Two seal adjustment devices are symmetrically arranged on both sides of the suction device, each of the seal adjustment devices has a push block arranged on the outer side of the push plate, and the push block is also located in the displacement groove, The push block is formed with an inclined push surface on the side close to the inclined guide surface, the inclined push surface can fit with the inclined guide surface, and between the push block and the push plate, one or more second An elastic piece, one or more push elements are fixed on the outside of the push block, each of the push elements extends to the outside of the upper base, and each of the push elements is jointly pivoted with a control element on the outside of the upper base, the control element A protruding end is formed on one side, and the control element can pivot on the outside of the pushing element, so as to control the protruding end to push or disengage the pushing element during pivoting; A dispensing tube set has a tray that can be joined with the lower base, and a plurality of dispensing through holes corresponding to the number and position of the lower through holes are opened on the tray, and each dispensing through hole is used for A dispensing pipette is installed, and each dispensing pipette has a dispensing chamber inside, the upper end of each dispensing pipette is provided with a connecting port that communicates with the dispensing chamber, and the lower end is provided with a dispensing chamber. The suction ports communicated with the chambers, when the dispensing through holes correspond to the lower through holes, the connecting ports can be inserted into the lower ends of the inner sleeves, and the stopper parts and the first sealing rings can be connected to each other. accommodated in each of the dispensing chambers, so that each of the first sealing rings is slightly attached to the inner wall of each of the dispensing chambers; A push-pull rod device is arranged above the suction device. The push-pull rod device has an air cavity main body. The air cavity main body is provided with a plurality of air chambers corresponding to the number and position of each of the lower through holes. One end is provided with an air inlet port which is connected with each of the fluid passages, and each of the second sealing rings is fitted between the air cavity main body and each of the sealing ends and sealed around each of the air inlet ports. The other end of the air chamber is provided with a push-pull port, each of the air chambers is provided with a push-pull element, and one end of each of the push-pull elements is sleeved with a third sealing ring, and each of the third sealing rings is connected to the inner part of each of the air chambers. the walls are tightly fitted, and the other end of each of the push-pull elements can protrude outside through each of the push-pull ports; and a driving device arranged above the push-pull rod device for pulling out each of the push-pull elements through each of the push-pull ports, so that each of the air chambers becomes a vacuum state as each of the push-pull elements is pulled out; Wherein, when the protruding end pushes the push element, it pushes the push block to move toward the push plate in the horizontal direction, and after the inclined push surface is in contact with the inclined guide surface, the push force in the horizontal direction is transferred to the vertical direction. The push plate further drives the push plate to move downward, and the push plate pushes down the inner sleeves. At that time, the top cone heads are pressed down to the inner edge of the first sealing ring at the same time, so that the restriction Each of the first sealing rings between each of the stopper parts and each of the top cone heads is forced to expand outward, and is in close contact with the inner wall of each of the dispensing chambers, and can be lifted during extraction. The sealing effect of the junction of the dispensing pipettes. According to the sealing device for dispensing straws of claim 1, each of the outer bushings is provided with a support plate, and the two ends of each of the first elastic members are respectively abutted between the support plate and each of the convex portions. The dispensing straw sealing device of claim 1, wherein the driving device uses an electric cylinder. The sealing device for dispensing straws according to claim 1, wherein the driving device is fixed with a pulling plate, and the pulling plate is fixedly connected with one end of each of the push-pull elements protruding from each of the push-pull ports. The dispensing pipette sealing device of claim 1, wherein the suction device and the push-pull rod device are connected and fixed using a connecting device. The sealing device for dispensing straws according to claim 5, wherein the connecting device has a set of symmetrical first connecting blocks, and a horizontal first channel is respectively defined inside each of the first connecting blocks, and two of the first connecting blocks respectively define a horizontal first channel. The blocks are mutually fixed with a connecting rod, and a second connecting block is respectively arranged above each of the first connecting blocks. The connecting block and each of the second connecting blocks are located on the two sides corresponding to the suction device and the push-pull rod device, respectively, and a first flange protrudes outwardly from both sides of the upper base. The sides are respectively provided with a second flange protruding outward, each of the first flanges is used to be inserted into each of the first channels, and each of the second flanges is used to be inserted into each of the second channels, so as to The suction device and the push-pull rod device are respectively installed between each of the first connecting blocks and each of the second connecting blocks, and a A buckle is used to connect the first connecting block and the second connecting block through the buckle. According to the dispensing straw sealing device of claim 6, one or more vertical fixing pieces are respectively fixed on each of the second connecting blocks, and a third elastic piece is sleeved on each of the fixing pieces, and each of the fixing pieces is provided with a third elastic piece. A top block is installed below the third elastic piece, each of the third elastic pieces abuts between each of the fixing pieces and each of the top blocks, and each of the top blocks abuts against each of the third elastic pieces and each of the top blocks Between each of the first connecting blocks, when the fastener is released, each of the top blocks is subjected to the elastic force of each of the third elastic members, and then pushes the first connecting block in a direction away from the second connecting block At the same time, the suction device installed on the first connecting block is separated from the push-pull rod device, so as to facilitate the disassembly of the suction device and the push-pull rod device as a whole. The dispensing straw sealing device of claim 1, wherein one or more fasteners are installed between the tray and the lower base, and the tray and the lower base are joined through the fasteners. The dispensing straw sealing device of claim 1, wherein the top surface of the upper base is provided with a plurality of pins, and the bottom surface of the air cavity body is provided with a plurality of sockets corresponding to the positions and numbers of the pins, and each of the pins can be Insert into the corresponding jacks.

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