Sample sampling device for rapid testing

Abstract

The invention provides a sample sampling device for rapid testing, and belongs to the technical field of sample sampling devices, the sample sampling device comprises a sampling tube, a sampling slim tube, an enclosure unit, a clamping unit, an unlocking unit and a plugging unit, and the sampling tube comprises a containing tube and a plugging block. The sample sampling device for rapid testing solves the problems that after an existing sample sampling device for rapid testing obtains a water-shaped food sample, the structure, in contact with the food sample, on the sampling device is inconvenient to maintain, a sampling pipe is prone to being infected by impurities, and the accuracy of sample testing is reduced.

Description

Technical field:

[0001] The invention belongs to the technical field of sample sampling devices, and in particular relates to a sample sampling device for rapid testing. Background technology:

[0002] Food sampling is the sampling and testing of batch foods. When sampling water-like foods, because different foods have different ingredients, different water-like foods need to be sampled separately before testing.

[0003] After obtaining a water-like food sample, the existing rapid test sample sampling device is not convenient for performing maintenance operations on the structure of the sampling device that has come into contact with the food sample, which can easily cause the sampling tube to be contaminated by impurities, thereby reducing the accuracy of the sample test. Summary of the invention:

[0004] The present invention provides a rapid test sample sampling device, which aims to solve the problem that after obtaining a water-like food sample, it is inconvenient to perform maintenance operations on the structure of the sampling device that has come into contact with the food sample, the sampling tube is easily contaminated by impurities, and the accuracy of the sample test is reduced.

[0005] The embodiment of the present invention provides a sample sampling device for rapid testing, comprising a sampling tube, a sampling capillary tube, a protection unit, a clamping unit, an unlocking unit and a blocking unit, wherein the sampling tube comprises a containing tube and a blocking block;

[0006] The enclosure unit includes a cover and a connecting block. The cover can be expanded and contracted. One end of the cover is installed on the wall of the containing tube facing the sampling capillary. The cover is outside the sampling capillary. The end of the cover farther from the containing tube is fixedly connected to the connecting block. A through hole is reserved on the connecting block, and the through hole corresponds to the sampling capillary. The clamping units are arranged in pairs outside the containing tube.

[0007] The clamping unit includes a linkage lever and a spiral beryllium copper wire three, the linkage lever is screwed to the side wall of the containing tube, the spiral beryllium copper wire three is installed at the end of the linkage lever farther from the sampling capillary, the end of the spiral beryllium copper wire three farther from the linkage lever is fixedly connected to the side wall of the containing tube, and the end of the linkage lever closer to the enclosure is provided with a clamping block three twisted toward the linkage lever.

[0008] The cross section of the connection block is in the shape of a trapezoid with a short upper base and a long lower base, and the upper base of the trapezoidal cross section of the connection block is shorter than the length of the three spaces between the paired clamping blocks.

[0009] The unlocking units are arranged in pairs on the blocking block, and the unlocking units include a connecting rod and a clamping block four. One end of the connecting rod is fixedly connected to the end of the blocking block farther from the sampling tube. The spiral beryllium copper wire three and the linkage rod and the spiral beryllium copper wire three are all located between the connecting rod and the containing tube. The clamping block four is installed at the end of the connecting rod farther from the blocking block.

[0010] A protrusion corresponding to the size of the blocking block is arranged on the inner wall surface of the opening side of the containing tube, and a convex block corresponding to the size of the inner wall of the containing tube is arranged on one end of the blocking block in the containing tube.

[0011] The blocking unit includes a shielding block, a pulling rod and four spiral beryllium copper wires. A receiving groove is reserved on the connecting block, the receiving groove is communicated with the through opening, the end of the receiving groove farther from the through opening is connected to the outside of the connecting block, and the shielding block is movably connected to the receiving groove; the pulling rod is installed on the side wall of the shielding block, and the pulling rod is movably connected to the receiving groove; one end of the four spiral beryllium copper wires is installed on the shielding block, and the end of the four spiral beryllium copper wires farther from the shielding block is installed on the inner wall of the receiving groove.

[0012] The blocking unit comprises a water wiping cloth, and the water wiping cloth is arranged on the wall of the shielding block which is far away from the spiral beryllium copper wire.

[0013] The enclosure unit comprises a ring sheet, which is located in the enclosure, and the inner ring of the ring sheet can be movably connected to the sampling capillary.

[0014] The beneficial effects of the present invention are:

[0015] 1. When the enclosure unit of the present invention is in a normal state, the sampling capillary is in the enclosure unit. In the stage of taking a water sample, the connection block is pushed toward the sampling tube, and the sampling capillary is extended out of the through-hole for sampling. Since the inner circle of the ring piece is movably connected to the sampling capillary, when the enclosure is shrunk, the installation of the ring piece is conducive to suppressing the distortion of the enclosure causing the sampling capillary to not correspond to the through-hole, and facilitating the sampling capillary to extend out of the enclosure.

[0016] 2. The present invention restrains the movement of the enclosure unit after it is shrunk through the clamping unit. When the enclosure unit is shrunk, the bottom of the paired clamping units is clamped on the connecting block. During operation, the enclosure unit is pushed toward the end closer to the sampling tube. When the enclosure unit is shrunk enough, the paired linkage rods are pulled. After the connecting block passes through the clamping block three, the linkage rods are released and restored to their original state through the spiral beryllium copper wire three. The paired clamping block three is clamped on the connecting block to restrain the movement of the enclosure unit after it is shrunk for sampling.

[0017] 3. The present invention uses the trapezoidal cross section of the connecting block. When the connecting block is gradually approached to the card block three, the upper end of the connecting block first probes into the paired card block three, and the two waists of the connecting block are attached to the card block three, and the card block three is squeezed outward. After the connecting blocks are all inserted into the paired card block three, the card block three clamps the connecting block, which is convenient for operation. When the probe head of the blocking block moves to the opening side of the containing pipe, the card block four is attached to the head of the linkage lever to rotate the linkage lever. When sampling, the blocking block is pulled outward to sample, the upper end of the linkage lever is attached to the inner wall of the card block four, and the blocking block is pulled outward again, and the card block four pushes the linkage lever. The end of the linkage lever that is farther from the card block is rotated to separate from the connecting block. When the sampling tube is lifted, the enclosure gradually retracts the sampling tube into the inside, which is convenient for the operator to operate and is beneficial for protecting the sampling tube when the sampling tube is lifted, thereby preventing the operator from colliding with the sampling tube and preventing impurities from infecting the sampling tube and water sample. During the sampling operation, the protrusion can be installed at the point of the desired sampling content, and when the blocking block is pulled outward for sampling, when the protrusion touches the protrusion, the water sample content desired by the operator is reached, and then the enclosure retracts the sampling tube into the inside through the unlocking unit.

[0018] 4. The spiral beryllium copper wire of the present invention is under normal conditions, and the cover block seals the aperture; when the spiral beryllium copper wire is retracted, the aperture is unsealed, and the installation of the blocking unit prevents the sampling tube from sticking out of the aperture caused by the enclosure being opened after the water sample is taken during the transfer stage, which is beneficial to protecting the operator and the water sample. When sampling, the traction rod and the cover block are pulled outward to unseal the aperture, and then the connecting block is pushed downward to make the sampling tube stick out of the aperture, and the traction rod is released, and the cover block is pressed against the side wall of the sampling tube through the spiral beryllium copper wire, and then the connecting block is pushed downward. When the enclosure is restored to its original state, the connecting block and the sampling tube are movably connected. After the connecting block and the sampling tube are separated, the cover block is pressed against the aperture by the spiral beryllium copper wire, which is beneficial to protecting the operator and the water sample. When the cover block and the sampling tube are movably pressed against each other, the water sample on the sampling tube can be wiped off by a mop.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood through implementation of the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. Description of the drawings:

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0022] Figure 2 It is a structural diagram of the enclosure unit in the embodiment of the present invention when it is closed;

[0023] Figure 3 This is a structural diagram of the unlocking unit inspiration after sampling in an embodiment of the present invention;

[0024] Figure 4 is a structural diagram of a blocking unit in an embodiment of the present invention;

[0025] Figure 5 It is a structural diagram of the embodiment of the present invention when the opening is unsealed.

[0026] Figure numerals: 211, sampling tube; 221, containing tube; 222, protrusion; 231, blocking block; 232, protrusion; 311, enclosure unit; 321, enclosure; 331, connecting block; 332, through-hole; 333, storage groove; 341, ring piece; 411, snap-on unit; 421, linkage lever; 431, spiral beryllium copper wire three; 441, clamping block three; 511, unlocking unit; 521, connecting lever; 531, clamping block four; 611, blocking unit; 621, covering block; 631, traction lever; 641, spiral beryllium copper wire four; 661, mopping cloth; 711, sampling capillary tube. Specific implementation method:

[0027] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1-Figure 5 An embodiment of the present invention provides a sample sampling device for rapid testing, comprising a sampling tube 211, a sampling capillary 711, a protective unit 311, a clamping unit 411, an unlocking unit 511 and a blocking unit 611. The sampling tube 211 comprises a containing tube 221 and a blocking block 231.

[0029] The enclosure unit 311 includes a cover 321 and a connecting block 331. The cover 321 can be expanded and retracted. One end of the cover 321 is installed on the wall of the containing tube 221 facing the sampling tube 711, and the cover 321 is outside the sampling tube 711; the end of the cover 321 farther from the containing tube 221 is fixedly connected to the connecting block 331, and a through hole 332 is reserved on the connecting block 331, and the through hole 332 corresponds to the sampling tube 711. When the enclosure unit 311 is in normal state, the sampling tube 711 is in the enclosure unit 311. In the stage of taking water samples, the connecting block 331 is pushed toward the sampling tube 211, and the sampling tube 711 protrudes from the through hole 332 for sampling.

[0030] The enclosure unit 311 includes a ring piece 341, which is located in the enclosure 321. The inner circle of the ring piece 341 is movably connected to the sampling tube 711. Since the inner circle of the ring piece 341 is movably connected to the sampling tube 711, when the enclosure 321 is contracted, the installation of the ring piece 341 can help prevent the enclosure 321 from twisting and causing the sampling tube 711 to not correspond to the opening 332, thereby facilitating the sampling tube 711 to protrude out of the enclosure 321.

[0031] The movement of the collapsed enclosure unit 311 is suppressed by the clamping units 411 . The clamping units 411 are arranged in pairs outside the container tube 221 . When the enclosure unit 311 is collapsed, the bottoms of the paired clamping units 411 are clamped on the connecting block 331 .

[0032] The clamping unit 411 includes a linkage rod 421 and a spiral beryllium copper wire 431. The linkage rod 421 is screwed to the side wall of the containing tube 221. The spiral beryllium copper wire 431 is installed at the end of the linkage rod 421 that is farther from the sampling capillary 711. The end of the spiral beryllium copper wire 431 that is farther from the linkage rod 421 is fixedly connected to the side wall of the containing tube 221. The end of the linkage rod 421 that is closer to the enclosure 321 is provided with a clamping block 441 that is twisted toward the linkage rod 421. When the enclosure unit 311 is folded, the bottom of the paired clamping units 411 is clamped on the connecting block 331.

[0033] During operation, the enclosure unit 311 is pushed toward the end closer to the sampling tube 211. When the enclosure unit 311 is sufficiently shrunk, the paired linkage rods 421 are pulled. After the connection block 331 passes through the clamping block three 441, the linkage rods 421 are released, and the linkage rods 421 are restored to their original state through the spiral beryllium copper wire three 431. The paired clamping block three 441 is clamped on the connection block 331 to inhibit the movement of the shrunk enclosure unit 311 for sampling.

[0034] The cross section of the connecting block 331 is a trapezoid with a short upper bottom and a long lower bottom. The upper bottom of the trapezoidal cross section of the connecting block 331 is shorter than the length between the paired clamping blocks 441. When the connecting block 331 approaches the clamping block 441 through the trapezoidal cross section of the connecting block 331, the upper end of the connecting block 331 first probes into the paired clamping blocks 441, and the two waists of the connecting block 331 are in contact with the clamping blocks 441, so that the clamping blocks 441 are squeezed outward. After the connecting block 331 is fully inserted into the paired clamping blocks 441, the clamping blocks 441 clamp the connecting block 331, so the operation is convenient.

[0035] The unlocking unit 511 is arranged in pairs on the blocking block 231, and the unlocking unit includes a connecting rod 521 and a clamping block 4 531. One end of the connecting rod 521 is fixedly connected to the end of the blocking block 231 farther from the sampling tube 711. The spiral beryllium copper wire 3 431 and the linkage rod 421 and the spiral beryllium copper wire 3 431 are all between the connecting rod 521 and the containing tube 221. The clamping block 4 531 is installed at the end of the connecting rod 521 farther from the blocking block 231. When the probe head of the blocking block 231 moves to the opening side of the containing tube 221, the clamping block 4 531 is in contact with the head of the linkage rod 421 to make the linkage rod 421 rotate.

[0036] When sampling, the blocking block 231 is pulled outward to take samples, the upper end of the linkage rod 421 is in contact with the inner wall of the block four 531, and the blocking block 231 is pulled outward again, and the block four 531 pushes the linkage rod 421, so that the end of the linkage rod 421 farther from the block four 531 rotates and separates from the connecting block 331, and when the sampling capillary 711 is lifted, the enclosure 321 gradually retracts the sampling capillary 711 into the inner side, which is convenient for the operator to operate and is conducive to protecting the sampling capillary 711 when the sampling capillary 711 is lifted, thereby preventing the operator from colliding with the sampling capillary 711 and preventing impurities from infecting the sampling capillary 711 and the water sample.

[0037] A protrusion 222 corresponding to the size of the sealing block 231 is installed on the inner wall surface of the opening side of the containing tube 221. A protrusion 232 corresponding to the size of the sealing block 231 is installed at one end of the sealing block 231 in the containing tube 221. The protrusion 232 corresponds to the size of the inner wall of the containing tube 221. During sampling, the protrusion 222 can be installed at the point of the desired sampling content. When the sealing block 231 is pulled outward for sampling, when the protrusion 222 touches the protrusion 232 and the water sample content desired by the operator is reached, the unlocking unit 511 is used to allow the cover 321 to retract the sampling tube 711 into the inside.

[0038] The blocking unit 611 includes a cover block 621, a traction rod 631 and four spiral beryllium copper wires 641. A receiving groove 333 is reserved on the connection block 331. The receiving groove 333 is connected to the through hole 332. The end of the receiving groove 333 farther from the through hole 332 is connected to the outside of the connection block 331. The cover block 621 can be movably connected to the receiving groove 333. The traction rod 631 is installed on the side wall of the cover block 621. The traction rod 631 is movably connected to the receiving groove 333. The spiral beryllium copper wire four 641 One end of the spiral beryllium copper wire 641 is arranged on the cover block 621, and the end of the spiral beryllium copper wire 641 farther from the cover block 621 is arranged on the inner wall of the storage groove 333; when the spiral beryllium copper wire 641 is normally, the cover block 621 seals the opening 332; when the spiral beryllium copper wire 641 is retracted, the opening 332 is unsealed, and the installation of the blocking unit 611 prevents the sampling tube 711 from protruding out of the opening 332 during the transfer stage and after the cover 321 is opened after the water sample is taken, which is beneficial to the protection of the operator and the water sample.

[0039] When sampling, pull the traction rod 631 and the shielding block 621 outward to unseal the opening 332, push the connecting block 331 downward to allow the sampling tube 711 to protrude from the opening 332, release the traction rod 631, and the shielding block 621 will press against the side wall of the sampling tube 711 via the spiral beryllium copper wire 641, and then push the connecting block 331 downward. When the enclosure 321 returns to its original state, the connecting block 331 and the sampling tube 711 are movably connected. After the connecting block 331 and the sampling tube 711 are separated, the shielding block 621 is pressed and sealed via the spiral beryllium copper wire 641 to facilitate the maintenance of the operator and the water sample.

[0040] The blocking unit 611 includes a wiping cloth 540, which is installed on the wall of the shielding block 621 farther from the spiral beryllium copper wire 641. When the shielding block 621 and the sampling tube 711 move together, the wiping cloth 540 can be used to wipe off the water sample on the sampling tube 711.

[0041] The specific implementation method is as follows: when sampling, the traction rod 631 and the cover block 621 are pulled outward to unseal the through hole 332, and the connection block 331 is pushed downward to allow the sampling capillary 711 to protrude from the through hole 332, and the traction rod 631 is released. The cover block 621 is pressed against the side wall of the sampling capillary 711 via the spiral beryllium copper wire 641, and the connection block 331 is pushed downward again. When the enclosure 321 is restored to its original state, the connection block 331 and the sampling capillary 711 are movably connected. After the sampling capillary 711 is separated, the cover block 621 is pressed and sealed with the spiral beryllium copper wire 4 641 to facilitate the maintenance of the operator and the water sample. The enclosure unit 311 is pushed toward the end closer to the sampling tube 211. When the enclosure unit 311 is sufficiently shrunk, the paired linkage rods 421 are pulled. After the connecting block 331 passes through the clamping block 3 441, the linkage rods 421 are released and restored to their original state through the spiral beryllium copper wire 3 431. The paired clamping block 3 441 is clamped on the connecting block 3. The connecting block 331 is used to inhibit the movement of the retracted enclosure unit 311 for sampling. The protrusion 222 can be installed at the point of the desired sampling content. When the blocking block 231 is pulled outward for sampling, when the protrusion 222 touches the protrusion 232, the water sample content desired by the operator is reached, and then the enclosure 321 is made to retract the sampling capillary 711 into the inner side through the unlocking unit 511, and the blocking block 231 is pulled outward for sampling. The upper end of the linkage lever 421 touches the inner wall of the block 4531, and the blocking is performed. The block 231 is pulled outward again, and the clamping block 4531 pushes the linkage lever 421, so that the end of the linkage lever 421 farther from the clamping block 4531 rotates and separates from the connecting block 331. When the sampling capillary 711 is lifted, the enclosure 321 gradually retracts the sampling capillary 711 into the inside, which is convenient for the operator to operate and is conducive to protecting the sampling capillary 711 when the sampling capillary 711 is lifted, thereby preventing the operator from colliding with the sampling capillary 711 and preventing impurities from infecting the sampling capillary 711 and the water sample.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rapid test sample sampling device, characterized in that: It comprises a sampling tube (211), a sampling capillary tube (711), a protection unit (311), a clamping unit (411), an unlocking unit (511) and a blocking unit (611), wherein the sampling tube (211) comprises a containing tube (221) and a blocking block (231); The enclosure unit (311) comprises an enclosure (321) and a connecting block (331); the enclosure (321) can be expanded and retracted; one end of the enclosure (321) is arranged on the wall of the containing tube (221) facing the sampling capillary (711); the enclosure (321) is outside the sampling capillary (711); the end of the enclosure (321) farther from the containing tube (221) is fixedly connected to the connecting block (331); a through opening (332) is reserved on the connecting block (331); the through opening (332) corresponds to the sampling capillary (711); the clamping units (411) are arranged in pairs outside the containing tube (221).

2. A rapid test sample sampling device according to claim 1, characterized in that: The clamping unit (411) comprises a linkage lever (421) and a third spiral beryllium copper wire (431); the linkage lever (421) is screwed to the side wall of the container tube (221); the third spiral beryllium copper wire (431) is arranged at the end of the linkage lever (421) which is farther from the sampling capillary (711); the end of the third spiral beryllium copper wire (431) which is farther from the linkage lever (421) is fixedly connected to the side wall of the container tube (221); and the end of the linkage lever (421) which is closer to the enclosure (321) is provided with a clamping block (441) which is twisted toward the linkage lever (421).

3. A rapid test sample sampling device according to claim 2, characterized in that: The cross section of the connection block (331) is in the shape of a trapezoid with a short upper base and a long lower base, and the upper base of the trapezoidal cross section of the connection block (331) is shorter than the length between the paired clamping blocks (441).

4. A rapid test sample sampling device according to claim 2, characterized in that: The unlocking units (511) are arranged in pairs on the blocking block (231), and the unlocking units include a connecting rod (521) and a clamping block four (531). One end of the connecting rod (521) is fixedly connected to an end of the blocking block (231) which is farther from the sampling capillary (711). The spiral beryllium copper wire three (431) and the linkage rod (421) and the spiral beryllium copper wire three (431) are all located between the connecting rod (521) and the containing tube (221). The clamping block four (531) is arranged at the end of the connecting rod (521) which is farther from the blocking block (231).

5. A rapid test sample sampling device according to claim 4, characterized in that: A protrusion (222) corresponding in size to the blocking block (231) is arranged on the inner wall surface of the opening side of the containing tube (221), and a convex block (232) is arranged at one end of the blocking block (231) in the containing tube (221), and the convex block (232) corresponds in size to the inner wall of the containing tube (221).

6. A rapid test sample sampling device according to claim 1, characterized in that: The blocking unit (611) comprises a shielding block (621), a traction rod (631) and four spiral beryllium copper wires (641). A receiving groove (333) is reserved on the connecting block (331). The receiving groove (333) is connected to the through opening (332). The end of the receiving groove (333) farther from the through opening (332) is connected to the outside of the connecting block (331). The shielding block (621) can be moved relative to the connecting block (331). The traction rod (631) is mounted on the side wall of the cover block (621), and the traction rod (631) is movably connected to the storage groove (333); one end of the spiral beryllium copper wire (641) is mounted on the cover block (621), and the end of the spiral beryllium copper wire (641) that is farther from the cover block (621) is mounted on the inner wall of the storage groove (333).

7. A rapid test sample sampling device according to claim 6, characterized in that: The blocking unit (611) comprises a water wiping cloth (540), and the water wiping cloth (540) is installed on the wall of the shielding block (621) which is farther from the spiral beryllium copper wire (641).

8. A rapid test sample sampling device according to claim 1, characterized in that: The enclosure unit (311) comprises a ring sheet (341), wherein the ring sheet (341) is located in the enclosure (321), and the inner ring of the ring sheet (341) is movably connected to the sampling capillary (711).

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