Eight-linked PCR (Polymerase Chain Reaction) tube device convenient to operate by one hand

Abstract

The utility model discloses an eight-joint PCR (Polymerase Chain Reaction) tube device convenient to operate by a single hand. The eight-joint PCR tube device comprises a processing table, a hydraulic cylinder, a lock catch assembly and a fixing assembly, the hydraulic cylinder is slidably mounted at the top of the suspension, and the output end of the hydraulic cylinder is connected with the lock catch assembly; the lock catch assembly comprises a fixing plate, a first electric push rod, a movable shell, a second electric push rod, a first supporting strip and a second supporting strip, an air cavity and a movable column are arranged in the first supporting strip, the first supporting strip is connected with an external air pump through a high-pressure air pipe, and lifting of the pipe cap strip is achieved; the fixing assembly comprises a locking arch frame, a sliding plate and a stepped hole and is used for fixing the eight-connection pipe body. Through cooperative control of the electric push rod and the high-pressure pneumatic system, the device realizes quick mounting and dismounting of the pipe cap strip, is simple and convenient to operate and high in stability, avoids liquid splashing, and is suitable for quick use of the eight-joint PCR pipe.

Description

Technical Field

[0001] This utility model relates to the field of PCR eight-tube capping technology, specifically an eight-tube PCR device that is easy to operate with one hand. Background Technology

[0002] The PCR eight-tube strips need to be capped one by one by staff, which is a very cumbersome, time-consuming and labor-intensive operation. Moreover, the capping operation does not have a secondary squeezing and compaction structure for the cap, resulting in gaps between the PCR eight-tube strips and the cap, and the sealing effect is poor. After the PCR eight-tube strips are capped, staff need to extract them, which is not convenient and simple, and increases the workload of staff.

[0003] CN216997575U discloses a capping device for PCR eight-tube strips, including a base. A fixed bracket is fixedly connected to the rear top of the base. A pneumatic pusher cylinder is fixedly connected to the top of the fixed bracket. A horizontal plate is fixedly connected to the output end of the pneumatic pusher cylinder, and the horizontal plate fits against the fixed bracket. A vertical shaft is fixedly connected to the bottom end of the horizontal plate. A torsion spring is sleeved on the outer side of the vertical shaft. A rotating block is fixedly connected to the other end of the torsion spring, and the rotating block is rotatably connected to the vertical shaft. A positioning clamp is fixedly connected to the front end of the rotating block. Through the horizontal plate, positioning clamp, track, and servo-driven movable pusher block, the positioning clamp is used to clamp the cap for capping. The operation is very simple, saving time and effort. The servo-driven movable pusher block pushes the track to compact the cap, improving the sealing effect and solving the problem of gaps between the PCR eight-tube strip and the cap due to the lack of a secondary compression structure for the capping operation. However, this patent still has the following problems in actual use:

[0004] The above device can only achieve compaction between the PCR eight-tube and the cap. However, when it is necessary to separate the two, both hands are still required to operate simultaneously to separate the PCR eight-tube and the cap. Even with both hands, excessive force may cause the hands to become unsteady, which may cause the internal liquid to spill out due to shaking, which is not conducive to the use of the PCR eight-tube.

[0005] An eight-tube PCR device that is easy to operate with one hand is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an eight-tube PCR device that is easy to operate with one hand, in order to solve the problem that the device mentioned in the background art can only achieve the compaction between the PCR eight-tube and the cap, but when it is necessary to pull the two apart, it is still necessary to operate with both hands at the same time to pull apart the PCR eight-tube and the cap. Even if both hands are used, excessive force may cause the hands to become unstable, which may cause the internal liquid to spill out due to shaking, which is not conducive to the use of the PCR eight-tube.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an eight-tube PCR device that is easy to operate with one hand, including a processing table, the processing table including a table surface and a suspension, and a hydraulic cylinder slidably mounted on the top of the suspension;

[0008] The output end of the hydraulic cylinder is provided with a locking assembly, and the top surface of the platform is provided with a fixing assembly;

[0009] The locking assembly includes a fixing plate, which is fixedly connected to the output end of the hydraulic cylinder. Two pairs of first electric push rods are symmetrically fixedly connected to the top surface of the fixing plate. A stepped groove is symmetrically opened at the top of the fixing plate. A movable shell is symmetrically slidably connected inside the stepped groove. A second electric push rod is fixedly connected to the middle of the movable shell. The output ends of the two second electric push rods on one side are fixedly connected to the same first support bar, and the output ends of the two second electric push rods on the other side are fixedly connected to the second support bar.

[0010] The first support bar has an air cavity inside, one side of which is connected to a high-pressure air pipe. Several movable columns are slidably installed on the other side of the bottom of the air cavity. The end of each movable column inside the air cavity is fixedly connected to the same first connecting bar. The second support bar has a slot on one side inside, and the movable column is inserted into the slot.

[0011] The fixing component includes a locking arch fixed to the top surface of the table. The top surface of the locking arch has several stepped holes, and sliding plates are symmetrically arranged on both sides of the stepped holes. Several grooves are formed on the edge of the sliding plates, and a through hole is formed on the inner bottom surface of the stepped holes.

[0012] Preferably, the output end of each of the first electric actuators is fixedly connected to one of the movable shells, and a sealing ring is slidably sleeved on the outside of the movable column. The sealing ring is fixedly embedded in the bottom of the first support bar on the side near the second support bar.

[0013] Preferably, the high-pressure air pipe is connected to an external high-pressure air pump, and both the first and second support bars have bent edges on their sides that are close to each other.

[0014] Preferably, a tube cap strip may be overlapped on the first support strip and the second support strip, and the tube cap strip includes a second connecting strip that can fit the bent edge of the first support strip and the second support strip.

[0015] Preferably, an eight-pipe main body can be installed on the locking arch frame. The eight-pipe main body includes several pipes and protruding rings fixed to the outside of the pipes. Connecting ribs are fixedly connected between the protruding rings. The cap of the pipe cap strip is inserted into the pipe. Several clearance holes are opened on the top surface of the platform. The pipes are inserted into the clearance holes.

[0016] Preferably, the tube body of the eight-tube main body has a through hole, the convex ring is fitted with the stepped hole, the groove is fitted with the tube body, a connecting groove is provided between different stepped holes, the connecting groove is opened above the locking arch, and the sliding plate can be fitted with the top surface of the convex ring.

[0017] Preferably, both the first and second support strips can be attached to the top surface of the slide plate, and when the movable column is located below the tube cap strip, it can pass between the two tubes.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This eight-tube PCR device, which is easy to operate with one hand, features an air chamber and high-pressure tubing design. Combined with the linkage of the movable column and connecting strip, and the fixing components that secure the eight-tube body, this device can automatically complete the cap separation operation under air pressure, avoiding the instability of manual operation, effectively preventing liquid splashing, and significantly improving operating efficiency, saving time and effort. The specific details are as follows:

[0019] 1. Through the coordinated action of the first and second electric actuators, the movement of the first and second support bars can be precisely controlled, thereby enabling the rapid installation and removal of the pipe cap. The design of its internal air chamber and high-pressure air pipe, combined with the linkage of the movable column and connecting bar, and the fixing components for securing the eight-tube main body, allows this device to automatically complete the cap separation operation under air pressure. This avoids the instability of manual operation, effectively prevents liquid splashing, and significantly improves operational efficiency, saving time and effort.

[0020] 2. By using the locking arch and the sliding plate, the vertical position of the eight-tube main body can be quickly locked, ensuring the stability of the tube body during installation and disassembly. The design of the sliding plate allows it to fit against the outer top of the tube body and cover the protruding ring, further enhancing the reliability of the locking. The fixing components have a simple structure and are easy to operate, enabling quick one-handed operation and significantly improving the efficiency and safety of experimental operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the first support bar and the main body of the eight-pipe assembly;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the first support bar and the second support bar;

[0024] Figure 4 This is a top view diagram of the fixed plate structure.

[0025] Figure 5 A schematic diagram of the locking arch frame;

[0026] Figure 6 for Figure 2 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Processing table; 101. Tabletop; 102. Suspension; 103. Hydraulic cylinder; 2. Locking assembly; 201. Fixing plate; 202. First electric actuator; 203. Movable shell; 204. Second electric actuator; 205. First support bar; 206. Second support bar; 207. Air cavity; 208. High-pressure air pipe; 209. Movable column; 210. First connecting bar; 211. Sealing ring; 212. Slot; 213. Stepped groove; 3. Fixing assembly; 301. Locking arch; 302. Slide plate; 303. Adhesive groove; 304. Stepped hole; 305. Through hole; 306. Connecting groove; 307. Clearance hole; 4. Pipe cap strip; 401. Second connecting bar; 5. Eight-pipe body; 501. Convex ring; 502. Connecting rib. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 6 The present invention provides a technical solution: an eight-tube PCR device that is easy to operate with one hand, including a processing table 1, the processing table 1 including a table surface 101 and a suspension 102, and a hydraulic cylinder 103 is slidably installed on the top of the suspension 102.

[0030] The output end of the hydraulic cylinder 103 is provided with a locking assembly 2, and the top surface of the platform 101 is provided with a fixing assembly 3;

[0031] The locking assembly 2 includes a fixing plate 201, which is fixedly connected to the output end of the hydraulic cylinder 103. Two pairs of first electric actuators 202 are symmetrically fixedly connected to the top surface of the fixing plate 201. A stepped groove 213 is symmetrically opened at the top of the fixing plate 201. A movable shell 203 is symmetrically slidably connected inside the stepped groove 213. A second electric actuator 204 is fixedly connected to the middle of the movable shell 203. The output ends of the two second electric actuators 204 on one side are fixedly connected to the same first support bar 205, and the output ends of the two second electric actuators 204 on the other side are fixedly connected to the second support bar 206. The coordinated work of the first electric actuators 202 and the second electric actuators 204 is realized by a PLC control system to ensure that their action sequence and force are precisely controllable. The control system monitors the position and force of the electric actuators in real time through sensors to ensure that their actions are precisely controllable, thereby realizing an efficient and stable operation process. This related control method is existing technology and will not be described in detail.

[0032] The first support bar 205 has an air cavity 207 inside. One side of the air cavity 207 is connected to a high-pressure air pipe 208. Several movable columns 209 are slidably installed on the other side of the bottom of the air cavity 207. One end of the movable column 209 inside the air cavity 207 is fixedly connected to the same first connecting bar 210. The second support bar 206 has a slot 212 inside one side, and the movable columns 209 are inserted into the slot 212. The first support bar 205 has an air cavity 207 inside, which is connected to an external high-pressure air pump through the high-pressure air pipe 208. When the high-pressure air pump is started, the air pressure in the air cavity 207 increases, pushing the movable columns 209 to slide into the slot 212.

[0033] The fixing component 3 includes a locking arch 301 fixed to the top surface of the table 101. The top surface of the locking arch 301 has several stepped holes 304, and symmetrical sliding plates 302 are arranged on both sides of the stepped holes 304. Several grooves 303 are formed on the edges of the sliding plates 302, and through holes 305 are formed on the inner bottom surface of the stepped holes 304. The core component of the fixing component 3 is the locking arch 301, which is fixed to the top surface of the table 101 and used to fix the eight-tube main body 5. The stepped holes 304 on the top surface of the locking arch 301 are used to accommodate the tube body of the eight-tube main body 5. The symmetrically arranged sliding plates 302 on both sides of the stepped holes 304 can fit against the tube body through the grooves 303, ensuring that the tube body will not shake during operation. The through holes 305 allow the tube body to pass through the locking arch 301 and connect with the clearance holes 307 on the table 101, further enhancing stability. There are eight stepped holes 304.

[0034] Each output end of the first electric actuator 202 is fixedly connected to a movable housing 203. A sealing ring 211 is slidably fitted onto the outside of the movable column 209. The sealing ring 211 is fixedly embedded in the bottom of the first support bar 205 near the second support bar 206. The output end of the first electric actuator 202 is fixedly connected to the movable housing 203. The extension and retraction of the first electric actuator 202 drives the movable housing 203 to slide within the stepped groove 213, thereby moving the first support bar 205 and the second support bar 206. The sealing ring 211 fitted onto the outside of the movable column 209 is used to ensure the airtightness of the air cavity 207 and prevent air pressure leakage.

[0035] The high-pressure air pipe 208 is connected to an external high-pressure air pump. The first support strip 205 and the second support strip 206 are both provided with bent edges on their adjacent sides. The bent edges on the adjacent sides of the first support strip 205 and the second support strip 206 are used to fit with the second connecting strip 401 of the cap strip 4 to ensure the stability of the cap strip 4 during operation. The design of the bent edges allows the cap strip 4 to be quickly positioned and fixed, reducing operation time.

[0036] A tube cap strip 4 may be overlapped on the first support strip 205 and the second support strip 206. The tube cap strip 4 includes a second connecting strip 401, which can fit the bent edge of the first support strip 205 and the second support strip 206.

[0037] The eight-pipe body 5 can be installed on the locking arch 301. The eight-pipe body 5 includes several pipes and convex rings 501 fixed to the outside of the pipes. Connecting ribs 502 are fixedly connected between the convex rings 501. The cap of the pipe cap strip 4 is inserted into the pipe. Several clearance holes 307 are opened on the top surface of the platform 101. The pipes are inserted into the clearance holes 307. The convex rings 501 are fixed to the outside of the pipes. The convex rings 501 are connected to each other by connecting ribs 502 to ensure that the relative position between the pipes is fixed. The cap of the pipe cap strip 4 is inserted into the pipe. The clearance holes 307 opened on the top surface of the platform 101 are used to accommodate the pipes and further enhance its stability.

[0038] The main body 5 of the eight-pipe has a through hole 305, a convex ring 501 that fits into a stepped hole 304, a groove 303 that fits into the pipe body, and a connecting groove 306 between different stepped holes 304. The connecting groove 306 is located above the locking arch 301, and the sliding plate 302 can fit into the top surface of the convex ring 501. The fitting of the sliding plate 302 into the top surface of the convex ring 501 ensures that the pipe body will not shake during operation.

[0039] Both the first support bar 205 and the second support bar 206 can be attached to the top surface of the slide plate 302. When the movable column 209 is located below the cap bar 4, it can pass between the two tubes.

[0040] Working principle: Before using this easy-to-operate eight-tube PCR device, it is necessary to check the overall condition of the device to ensure it can function properly. Figure 1 - Figure 6 As shown, firstly, the first electric actuator 202 is activated to move the movable shell 203, thereby causing the movable shell 203 to bring the first support strip 205 and the second support strip 206 closer together. At the same time, the second electric actuator 204 is activated to change the distance between the first support strip 205 and the second support strip 206 and the fixed plate 201, making it suitable for inserting the tube cap strip 4. The second connecting strip 401 is attached to the bent edge of the first support strip 205 and the second support strip 206, and the cap body of the tube cap strip 4 is located between the first support strip 205 and the second support strip 206. Then, the second electric actuator 204 is activated to make the top of the cap body attach to the bottom surface of the fixed plate 201.

[0041] Then, the tube body is inserted into the through hole 305, and the convex ring 501 is embedded into the stepped hole 304. Finally, the hydraulic cylinder 103 is lowered, and the fixed plate 201 is lowered, so that the cap body can be initially inserted into the tube body. At this time, the top of the cap body of the tube cap strip 4 is in contact with the bottom surface of the fixed plate 201. Then, the first electric push rod 202 is activated, so that the movable shell 203 moves away from each other until it is directly above the locking arch 301. Finally, the fixed plate 201 is lowered further, pushing the cap body to be completely pressed into the tube body, realizing the quick installation of the cap body. The core component of the locking assembly 2 is the fixed plate 201, which is fixedly connected to the output end of the hydraulic cylinder 103 and can move up and down with the movement of the hydraulic cylinder 103. Two pairs of first electric actuators 202 are symmetrically installed on the top surface of the fixed plate 201 to drive the movable shell 203 to slide in the stepped groove 213, thereby driving the first support bar 205 and the second support bar 206 to move; the second electric actuator 204 connected in the middle of the movable shell 203 further controls the spacing between the first support bar 205 and the second support bar 206, so that it can adapt to different specifications of pipe cap bar 4.

[0042] When the cap needs to be removed, by squeezing the slide plate 302, the two slide plates 302 move relative to each other and fit against the outer side of the top of the tube body, and the slide plates 302 cover both sides of the top surface of the convex ring 501; the two fast-moving locking arches 301 can realize the fast locking of the eight-tube body 5 in the vertical direction.

[0043] Then, under the combined control of the second electric actuator 204 and the first electric actuator 202, the first support bar 205 and the second support bar 206 move to the top surface of the sliding plate 302. Finally, the external high-pressure air pump is activated, which increases the internal air pressure of the air chamber 207. The air pressure pushes the first connecting bar 210, causing all the movable columns 209 to slide against the sealing ring 211. This allows the movable columns 209 to insert into the slot 212, ultimately causing the fixing plate 201 to move upward. The movable columns 209 then come into contact with the lower surface of the second connecting bar 401, and finally, the second connecting bar 401 causes the cap to separate from the tube body. The entire process only requires one hand to easily install the cap bar 4 and the eight-connector tube body 5 and achieve quick locking. Under the pull of the movable column 209 that can pass through the bottom of the second connecting bar 401, the second connecting bar 401 moves upward, and finally, the cap bar 4 and the eight-connector tube body 5 are automatically disassembled. This avoids liquid splashing caused by hand tremors. The entire process can be operated with one hand, saving time and effort.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An eight-tube PCR device that is easy to operate with one hand, comprising a processing table (1), the processing table (1) comprising a table surface (101) and a suspension (102), wherein a hydraulic cylinder (103) is slidably mounted on the top of the suspension (102); Its features are, Also includes: The output end of the hydraulic cylinder (103) is provided with a locking assembly (2), and the top surface of the platform (101) is provided with a fixing assembly (3); The locking assembly (2) includes a fixing plate (201), which is fixedly connected to the output end of the hydraulic cylinder (103). Two pairs of first electric push rods (202) are symmetrically fixedly connected to the top surface of the fixing plate (201). A stepped groove (213) is symmetrically opened at the top of the fixing plate (201). A movable shell (203) is symmetrically slidably connected inside the stepped groove (213). A second electric push rod (204) is fixedly connected to the middle part of the movable shell (203). The output ends of the two second electric push rods (204) on one side are fixedly connected to the same first support bar (205), and the output ends of the two second electric push rods (204) on the other side are fixedly connected to the second support bar (206). The first support bar (205) has an air cavity (207) inside. One side of the air cavity (207) is connected to a high-pressure air pipe (208). Several movable columns (209) are slidably installed on the other side of the bottom of the air cavity (207). The end of the movable column (209) inside the air cavity (207) is fixedly connected to the same first connecting bar (210). The second support bar (206) has a slot (212) inside one side. The movable column (209) is inserted into the slot (212). The fixing component (3) includes a locking arch (301) fixed to the top surface of the table (101). The top surface of the locking arch (301) is provided with a plurality of stepped holes (304). Slide plates (302) are symmetrically provided on both sides of the stepped holes (304). The edges of the slide plates (302) are provided with a plurality of grooves (303). The inner bottom surface of the stepped holes (304) is provided with a through hole (305).

2. The eight-tube PCR device for easy one-handed operation according to claim 1, characterized in that: Each of the output ends of the first electric actuator (202) is fixedly connected to one of the movable shells (203). A sealing ring (211) is slidably sleeved on the outside of the movable column (209). The sealing ring (211) is fixedly embedded in the bottom of the first support bar (205) near the second support bar (206).

3. The eight-tube PCR device for easy one-handed operation according to claim 1, characterized in that: The high-pressure air pipe (208) is connected to an external high-pressure air pump, and the first support strip (205) and the second support strip (206) are both provided with bent edges on the side that are close to each other.

4. The eight-tube PCR device for easy one-handed operation according to claim 1, characterized in that: A tube cap strip (4) may be overlapped on the first support strip (205) and the second support strip (206). The tube cap strip (4) includes a second connecting strip (401), which can fit the bent edge of the first support strip (205) and the second support strip (206).

5. The eight-tube PCR device for easy one-handed operation according to claim 4, characterized in that: The locking arch frame (301) can be equipped with an eight-pipe body (5). The eight-pipe body (5) includes several pipe bodies and a convex ring (501) fixed to the outside of the pipe body. A connecting rib (502) is fixedly connected between the convex rings (501). The cap of the pipe cap strip (4) is inserted into the pipe body. Several clearance holes (307) are opened on the top surface of the platform (101). The pipe body is inserted into the clearance hole (307).

6. The eight-tube PCR device for easy one-handed operation according to claim 5, characterized in that: The tube body of the eight-pipe main body (5) has a through hole (305), the convex ring (501) is fitted with the stepped hole (304), the groove (303) is fitted with the tube body, and a connecting groove (306) is provided between different stepped holes (304). The connecting groove (306) is opened above the locking arch frame (301), and the sliding plate (302) can be fitted with the top surface of the convex ring (501).

7. The eight-tube PCR device for easy one-handed operation according to claim 1, characterized in that: Both the first support strip (205) and the second support strip (206) can be attached to the top surface of the slide plate (302), and the movable column (209) can pass between the two tubes when it is located below the tube cap strip (4).

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