Anti-pollution type convenient sampling device for food detection

Abstract

The invention relates to the field of sampling, in particular to an anti-pollution convenient sampling device for food detection, which comprises a base, a mounting cylinder, a pull rod, a sampling tube and the like, the base is slidably connected with a mounting cylinder; the mounting cylinder is rotationally connected with a pull rod; the mounting cylinder is fixedly connected with a plurality of sampling pipes. Through cooperation of a rhombic telescopic frame, a sliding plate and a floating plate, first balls are distributed in liquid food at equal intervals, then sampling positions are determined through cooperation of arc-shaped blocks and the first balls, a plurality of sampling pipes can be adaptively adjusted according to the height of liquid in a fermentation barrel, and the problem that in the prior art, due to the fact that the positions of sampling holes of a stratified sampler are fixed, sampling time is shortened is solved. And the heights of the fermentation barrels are inconsistent, so that the sampling position cannot be adjusted in a self-adaptive manner, and the convenience is influenced.

Description

Technical Field

[0001] The invention relates to the field of sampling, and in particular to an anti-pollution convenient sampling device for food detection. Background Art

[0002] In order to monitor the fermentation progress of liquid food in the fermentation barrel and ensure the final quality and safety of the liquid food, the liquid food in the fermentation barrel is usually sampled and tested in layers. Since the existing sampling is carried out using a slender sampler, it is necessary to manually adjust the position of the slender sampler inserted into the fermentation barrel to extract liquid food in different layers. The sampling process is time-consuming and inconvenient to operate. Therefore, a stratified sampler with multiple sampling holes is usually used to carry out stratified sampling and testing of the liquid food in the fermentation barrel. However, since the positions of the multiple sampling holes of the stratified sampler are fixed and the heights of the fermentation barrels are inconsistent, the stratified sampler cannot adaptively adjust the sampling position according to the liquid height in the fermentation barrel, which makes it impossible to conveniently sample. Summary of the invention

[0003] In order to overcome the shortcoming that the existing stratified sampler cannot adaptively adjust the sampling position according to the liquid height in the fermentation barrel, the present invention provides an anti-pollution type convenient sampling device for food detection.

[0004] The technical solution of the present invention is: a pollution-proof convenient sampling device for food testing, comprising a base, a mounting tube, a pull rod and a sampling tube; the base is slidably connected to the mounting tube; the mounting tube is rotatably connected to the pull rod; the mounting tube is fixedly connected to a plurality of sampling tubes; it also comprises a rhombus telescopic frame, a sliding plate, a floating plate, a spring telescopic rod, a round ball, an arc block, a blocking disk and a locking assembly; the base is fixedly connected to at least one rhombus telescopic frame; the rhombus telescopic frame is fixedly connected to the sliding plate, and the sliding plate is slidably connected to the base; the sliding plate is fixedly connected to the floating plate; the rhombus telescopic frame is provided with a plurality of rotating parts; each rotating part is fixedly connected to one A spring telescopic rod; the telescopic part of each spring telescopic rod is fixedly connected to a ball; the mounting tube is fixedly connected to at least one arc block, and the arc block and the ball are on the same axis; each arc block is provided with a spherical groove; the mounting tube is rotatably connected to a blocking disk, and the blocking disk is fixedly connected to the pull rod; the blocking disk is provided with a liquid inlet; the diamond-shaped telescopic frame, the slide plate, the floating plate, the spring telescopic rod, the ball and the arc block cooperate to realize adaptive adjustment of the sampling position according to the liquid height in the fermentation barrel; the base is connected to a locking assembly matching the number of slide plates, and the locking assembly is used to lock the slide plates.

[0005] More preferably, the locking assembly includes an extrusion plate, a locking plate and a spring member 1; the base is slidably connected to the extrusion plate; the extrusion plate is provided with a handle 2; the base is slidably connected to two locking plates, and each locking plate is in contact with the extrusion plate, and the sliding plate is located between the two locking plates; each locking plate is fixedly connected to a plurality of spring members 1, and all the spring members 1 are fixedly connected to the base; the extrusion plate is provided with a triangular portion; and each locking plate is provided with an inclined portion.

[0006] More preferably, it also includes a positioning assembly; the base and the pull rod are jointly connected with a positioning assembly for ensuring that the liquid inlet and the sampling tube are fully connected; the positioning assembly consists of a positioning plate, a sliding ring, an L-shaped sliding plate, two spring telescopic rods and two spheres; the base is fixedly connected to the positioning plate; the positioning plate is provided with two spherical grooves matching the number of sampling tubes, and the two spherical grooves coincide with the axis of the sampling tube; the pull rod is slidably connected to the sliding ring; the sliding ring is fixedly connected with the L-shaped sliding plate, and the L-shaped sliding plate is slidably connected to the positioning plate; the sliding ring is fixedly connected with two spring telescopic rods; the telescopic portion of the two spring telescopic rods is fixedly connected with two spheres, and the two spheres are in contact with the positioning plate, and the two spheres coincide with the axis of the liquid inlet.

[0007] More preferably, the liquid inlet is configured in a truncated cone shape.

[0008] More preferably, a round seat portion is provided at the bottom of the base.

[0009] More preferably, the pull rod is provided with a handle 1.

[0010] More preferably, it also includes a piston, a control module and a suction assembly; the sampling tube is slidably connected to the piston; at least one control module is fixed in each sampling tube; the mounting tube and the pull rod are jointly connected to the suction assembly; the piston, the control module and the suction assembly are used together to detect the fluidity of liquid food.

[0011] More preferably, the suction assembly includes a pump, an air inlet pipe, an air outlet pipe and a disc; the mounting cylinder is provided with circular through holes matching the number of sampling tubes; each sampling tube is provided with a connecting hole, and each connecting hole is connected to the corresponding circular through hole; the pull rod is fixedly connected to the pump; the air inlet end of the pump is connected to the air inlet pipe; the air outlet end of the pump is connected to the air outlet pipe; the pull rod is provided with a hollow portion, and the air outlet pipe is connected to the hollow portion; a circular through groove is provided in the hollow portion; the mounting cylinder is rotatably connected to the disc, and the disc is fixedly connected to the pull rod; the disc is provided with an L-shaped through hole, and the L-shaped through hole is connected to the air inlet pipe; the axis of the L-shaped through hole coincides with the axis of the liquid inlet.

[0012] More preferably, an auxiliary rod is further included; each sampling tube is fixed with an auxiliary rod, and the piston is slidably connected to the auxiliary rod.

[0013] More preferably, a refrigeration assembly is also included; each sampling tube is connected to a refrigeration assembly for refrigerating the liquid food therein, and each refrigeration assembly is connected to the mounting cylinder; the refrigeration assembly consists of a mounting plate, a second spring member, a socket, a plug, a push rod and a refrigeration tube; the mounting cylinder is slidably connected to the mounting plate; the mounting plate is fixedly connected to at least one second spring member, and the second spring member is fixedly connected to the mounting cylinder; the mounting cylinder is fixedly connected to the socket; the mounting plate is fixedly connected to the plug; the mounting plate is fixedly connected to at least one push rod, and the push rod passes through the sampling tube, and the push rod is slidably connected to the sampling tube; the mounting cylinder is fixedly connected to the refrigeration tube, and the refrigeration tube is in contact with the sampling tube, and the plug and the refrigeration tube are electrically connected through a wire.

[0014] The beneficial effects of the present invention are as follows: by cooperating with the diamond-shaped telescopic frame, the sliding plate and the floating plate, the ball one is evenly distributed in the liquid food, and then the sampling position is determined by cooperating with the arc block and the ball one, so that multiple sampling tubes can be adaptively adjusted according to the liquid height in the fermentation barrel, thereby solving the problem in the prior art that the sampling hole position of the layered sampler is fixed, and the height of the fermentation barrel is inconsistent, resulting in the inability to adaptively adjust the sampling position, thereby affecting the convenience; By adding a piston, a control module and a suction assembly, and by arranging a timer and a contact sensor in the control module, the time for the liquid food at different layers to be drawn into the sampling tube can be obtained. After the sampling is completed, the timing data of the timer can be obtained manually using a reading device. The obtained time can be used to determine the fluidity of the liquid food at the layer, which is used to evaluate the fermentation state of the liquid food. By adding a refrigeration component, the refrigeration component cooperates with the piston to ensure that after the liquid food in each sampling tube is taken out, the corresponding refrigeration tube stops working immediately, so as to avoid the use of refrigeration equipment, which requires additional equipment and causes excessively high sampling costs. If a refrigerator is set in the sampling device, the refrigerator will cool the sampling tube from which liquid food has been taken out and the sampling tube from which liquid food has not been taken out at the same time, which will result in the consumption of a large amount of electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure disclosed by the present invention of the anti-pollution convenient sampling device for food testing; Figure 2 A schematic diagram of the structure of the base, mounting tube, pull rod, sampling tube, diamond-shaped telescopic frame, sliding plate, floating plate, spring telescopic rod 1, arc block, locking plate and refrigeration tube disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 3 A schematic diagram of the structure of the installation cylinder, the pull rod, the sampling tube, the arc block, the sealing disk, the pump, the piston, the auxiliary rod, the socket and the refrigeration tube disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 4A schematic diagram of the structure of the installation cylinder, the pull rod, the sampling tube, the pump, the air inlet pipe, the air outlet pipe, the disc, the control module, the auxiliary rod, the socket and the refrigeration tube disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 5 It is a schematic structural diagram of the installation cylinder, sampling tube, control module, installation plate, spring member 2, socket, plug, push rod and refrigeration tube disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 6 It is a schematic structural diagram of a base, a pull rod, an extrusion plate, a positioning plate, a sliding ring, an L-shaped sliding plate and a spring telescopic rod 2 disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 7 The schematic diagram of the structure of the base, the pull rod, the extrusion plate, the locking plate, the first spring member, the positioning plate, the sliding ring, the second spring telescopic rod and the second ball disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Figure 8 It is a schematic structural diagram of a diamond-shaped telescopic frame, a spring telescopic rod 1, a round ball 1 and an arc-shaped block disclosed in the anti-pollution convenient sampling device for food detection of the present invention; Fig. 9 The present invention is a plan view of the installation cylinder, sampling tube and disc disclosed in the anti-pollution convenient sampling device for food testing of the present invention.

[0016] Description of the accompanying drawings: 1-base, 2-installation cylinder, 3-pull rod, 4-sampling tube, 5-diamond telescopic frame, 6-sliding plate, 7-floating plate, 8-spring telescopic rod one, 9-round ball one, 10-arc block, 11-blocking plate, 111-pump, 112-inlet pipe, 113-outlet pipe, 114-disc, 211-squeezing plate, 212-locking plate, 213-spring part one, 311-positioning plate, 312-sliding ring, 313-L-shaped sliding plate, 314-spring telescopic rod two, 315-round ball two, 411-piston, 412- Control module, 413-auxiliary rod, 511-mounting plate, 512-spring part 2, 513-socket, 514-plug, 515-push rod, 516-refrigeration tube, 101-round seat, 201-circular through hole, 301-handle 1, 302-hollow part, 303-circular through groove, 401-connecting hole, 501-rotating part, 1001-spherical groove 1, 1101-liquid inlet, 11401-L-shaped through hole, 21101-handle 2, 21102-triangular part, 21201-inclined part, 31101-spherical groove 2. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Example 1 A contamination-proof and convenient sampling device for food testing, such as Figure 1-Figure 4 and Figure 6-Figure 8 As shown, it includes a base 1, a mounting tube 2, a pull rod 3 and a sampling tube 4; the base 1 is slidably connected to the mounting tube 2; the mounting tube 2 is rotatably connected to the pull rod 3; the pull rod 3 is provided with a handle 301 for facilitating manual movement of the mounting tube 2 on the base 1; the mounting tube 2 is fixedly connected to six sampling tubes 4 distributed in a circular array; The utility model also includes a diamond-shaped telescopic frame 5, a sliding plate 6, a floating plate 7, a spring telescopic rod 8, a sphere 9, an arc block 10, a blocking plate 11 and a locking assembly; the base 1 is fixedly connected to two diamond-shaped telescopic frames 5; each diamond-shaped telescopic frame 5 is fixedly connected to a sliding plate 6, and each sliding plate 6 is slidably connected to the base 1; all sliding plates 6 are fixedly connected to the floating plate 7; each diamond-shaped telescopic frame 5 is provided with six rotating parts 501 distributed at equal distances; each rotating part 501 is fixedly connected to a spring telescopic rod 8; each spring telescopic rod 8 is fixedly connected to the base 1 ... The telescopic part of the retractable rod 8 is fixedly connected with a ball 9; the mounting tube 2 is fixedly connected with two arc blocks 10, and each arc block 10 is on the same axis as the corresponding ball 9; each arc block 10 is provided with a spherical groove 1001 matching the ball 9; the mounting tube 2 is rotatably connected with a blocking disk 11 for blocking the sampling tube 4, and the blocking disk 11 is fixedly connected with the pull rod 3; the blocking disk 11 is provided with a liquid inlet 1101 for releasing the blocking of the sampling tube 4; the base 1 is connected with two locking assemblies.

[0019] The locking assembly includes an extrusion plate 211, a locking plate 212 and a spring member 213; the base 1 is slidably connected to the extrusion plate 211; the extrusion plate 211 is provided with a handle 21101 for facilitating manual movement of the extrusion plate 211 on the base 1; the base 1 is slidably connected to two locking plates 212 distributed front and back, the locking plates 212 are used to lock the slide plate 6, and each locking plate 212 is in contact with the extrusion plate 211, and the slide plate 6 is located between the two locking plates 212; each locking plate 212 is fixedly connected to a plurality of spring members 213, and all the spring members 213 are fixedly connected to the base 1; the extrusion plate 211 is provided with a triangular portion 21102; each locking plate 212 is provided with an inclined portion 21201, and through the arrangement of the inclined portion 21201 and the triangular portion 21102, when the extrusion plate 211 is pushed to reset, it is convenient for the extrusion plate 211 to push the locking plate 212 away.

[0020] The base 1 and the pull rod 3 are connected to the positioning assembly; the positioning assembly is composed of a positioning plate 311, a sliding ring 312, an L-shaped sliding plate 313, a spring telescopic rod 2 314 and a round ball 2 315; the base 1 is fixed with the positioning plate 311; the positioning plate 311 is provided with six spherical grooves 2 31101 distributed in a ring array, and the spherical grooves 2 31101 coincide with the axis of the sampling tube 4; the pull rod 3 is slidably connected to the sliding ring 312; The ring 312 is fixedly connected with an L-shaped sliding plate 313, and the L-shaped sliding plate 313 is slidably connected with the positioning plate 311; the sliding ring 312 is fixedly connected with a spring telescopic rod 314; the telescopic part of the spring telescopic rod 314 is fixedly connected with a sphere 315, and the sphere 315 is in contact with the positioning plate 311, and the sphere 315 coincides with the axis of the liquid inlet 1101; the spherical groove 31101 cooperates with the sphere 315 to position the L-shaped through hole 11401.

[0021] The liquid inlet 1101 is configured to be in a truncated cone shape, which is configured to allow liquid food in a larger range to enter the sampling tube 4 .

[0022] A round seat 101 is provided at the bottom of the base 1, and the round seat 101 is used to ensure that the base 1 is placed stably.

[0023] When sampling, firstly, the base 1 and the parts connected thereto are manually inserted into the fermentation barrel until the bottom of the base 1 contacts the inner bottom of the fermentation barrel. During this process, when the float plate 7 contacts the liquid food, the float plate 7 will always float on the surface of the liquid food under the action of buoyancy. Therefore, during the insertion process, the float plate 7 will pull the diamond-shaped telescopic frame 5 to unfold through the sliding plate 6, and the diamond-shaped telescopic frame 5 will drive the six spring telescopic rods 8 and the round ball 9 thereon to move away equidistantly. Then, when the bottom of the base 1 contacts the inner bottom of the fermentation barrel, the six spring telescopic rods 8 and the round ball 9 will be equidistantly distributed in the liquid food. Then, the installation cylinder 2 and the parts connected thereto are manually pulled upward by the pull rod 3, and the installation cylinder 2 moves upward along the base 1. During this process, when the arc block 10 contacts the first ball 9 from the bottom up, as the installation tube 2 and the parts connected thereto continue to move upward, the arc block 10 forces the ball 9 to compress the telescopic end of the corresponding spring telescopic rod 8. When the ball 9 is aligned with the spherical groove 1001 of the arc block 10, the spring telescopic rod 8 pushes the ball 9 to be stuck into the spherical groove 1001. At this time, the ball 9 restricts the upward movement of the arc block 10, making the human body obviously feel the jam. After feeling the jam, the human body stops pulling the installation tube 2 and the parts connected thereto upward. At this time, since the ball 9 is stuck into the spherical groove 1001 of the arc block 10, the installation tube 2 and the parts connected thereto will remain stationary.

[0024] Then, the sealing disk 11 is manually driven to rotate 30 degrees clockwise through the pull rod 3, so that the liquid inlet 1101 is connected to the nearest sampling tube 4 in the clockwise direction. At this time, the liquid food flows into the sampling tube 4 through the liquid inlet 1101 under the influence of the liquid pressure. At this time, after waiting for a period of time (10-15 seconds), the sealing disk 11 is driven to rotate 30 degrees clockwise through the pull rod 3 again, so that the liquid inlet 1101 is away from the sampled sampling tube 4, so that the sampled sampling tube 4 is re-sealed by the sealing disk 11 to seal the liquid food inside the sampling tube 4 to prevent the liquid food in the sampled sampling tube 4 from contacting with liquid food at different levels during subsequent sampling, causing cross contamination problems. In this way, a sampling is completed. The sampling work of the sample tube 4 is carried out, and then the parts of the mounting tube 2 and its parts are manually pulled upward by the pull rod 3, so that the arc block 10 passes through the remaining balls 9 from bottom to top in turn, and the remaining sampling tubes 4 are filled with liquid food in the same way as described above; in this way, the diamond-shaped telescopic frame 5, the sliding plate 6 and the floating plate 7 are coordinated to make the balls 9 equidistantly distributed in the liquid food, and then the sampling position is determined by the arc block 10 and the balls 9, so that multiple sampling tubes 4 can be adaptively adjusted according to the liquid height in the fermentation barrel. The sampling position can be avoided to avoid the problem in the prior art that the sampling hole position of the stratified sampler is fixed, and the height of the fermentation barrel is inconsistent, resulting in the inability to adaptively adjust the sampling position, thereby affecting the convenience.

[0025] It should be noted that, when the installation tube 2 and its parts are continuously pulled upward by the pull rod 3, the spherical groove 1001 of the arc block 10 will push the ball 9, and the ball 9 forces the telescopic part of the corresponding spring telescopic rod 8 to contract, that is, when the installation tube 2 and its parts are continuously pulled upward by the pull rod 3, the ball 9 can smoothly withdraw from the spherical groove 1001.

[0026] It should be noted that after completing the sampling of all the sampling tubes 4, the liquid inlet 1101 of the sealing disk 11 returns to its initial state. When the liquid food needs to be taken out from the sampling tube 4, the sampling operation is repeated, and the sealing disk 11 is manually driven to rotate through the pull rod 3 so that the liquid inlet 1101 is connected to the sampling tube 4 to take out the sample.

[0027] It is taken into consideration that, when the installation cylinder 2 and its parts are manually pulled upward by the pull rod 3 to move the arc block 10 successively from bottom to top to move all the balls 9, the arc block 10 pushes the diamond-shaped telescopic frame 5 to continue to expand through the balls 9 and the spring telescopic rod 8, causing the position of the balls 9 to change, resulting in the sampling position of the sampling tube 4 to change, thus affecting the sampling accuracy.

[0028] Therefore, a locking assembly is provided. After the bottom of the base 1 contacts the inner bottom of the fermentation barrel, the squeezing plate 211 is manually driven to move upward by the handle 21101, so that the squeezing plate 211 does not contact the locking plate 212. In this process, since the spring member 213 is initially in a compressed state, when the squeezing plate 211 does not contact the locking plate 212, the locking plate 212 contacts the sliding plate 6 under the action of the spring member 213 which is initially in a compressed state, and locks the sliding plate 6, so that the sliding plate 6 cannot continue to move on the base 1. This can keep the diamond telescopic frame 5, the spring telescopic rod 8 and the ball 9 stationary, so that the arc block 10 can stably pass through all the balls 9, so as to avoid the arc block 10 pushing the diamond telescopic frame 5 to continue to expand through the ball 9 and the spring telescopic rod 8, resulting in a change in the position of the ball 9, resulting in a change in the sampling position of the sampling tube 4, and affecting the sampling accuracy.

[0029] It should be noted that after the sampling is completed, the squeezing plate 211 is manually pushed downward to reset, and the squeezing plate 211 forces the locking plate 212 to move away from the sliding plate 6, and the spring member 1 213 is compressed again.

[0030] It is taken into consideration that, in the process of manually driving the pull rod 3 and the parts connected thereto to rotate so that the liquid inlet 1101 is connected to the sampling tube 4, it is difficult to manually determine whether the liquid inlet 1101 is completely connected to the sampling tube 4. If the liquid inlet 1101 is not completely connected to the sampling tube 4, it will affect the entry of liquid food into the sampling tube 4, resulting in insufficient sample quantity, thus affecting subsequent detection and analysis of the sample.

[0031] Therefore, a positioning component is added. When the sealing disk 11 is manually driven to rotate thirty degrees clockwise through the pull rod 3, the pull rod 3 will synchronously drive the sliding ring 312 and its connecting parts to rotate. At this time, the spring telescopic rod 2 314 is in an initial compression state, and the ball 2 315 is in contact with the positioning plate 311. The positioning plate 311 maintains the compression state of the spring telescopic rod 2 314 through the ball 2 315. When the ball 2 315 is aligned with the spherical groove 2 31101, the telescopic part of the spring telescopic rod 2 314 pushes the ball 2 315 into the groove. In this way, whether the L-shaped through hole 11401 is not aligned with the circular through hole 201 can be determined by manually using whether the ball 2 315 is stuck in the spherical groove 2 31101 as a standard, so as to ensure that the liquid inlet 1101 is fully connected with the sampling tube 4, and ensure that the liquid food enters the sampling tube 4 smoothly.

[0032] Example 2 On the basis of Example 1, Figure 2-Figure 5 and Fig. 9As shown, it also includes a piston 411, a control module 412 and a suction assembly; the sampling tube 4 is slidably connected to the piston 411; two control modules 412 are bolted in each sampling tube 4, and the control module 412 has a built-in timer and a contact sensor; the mounting tube 2 and the pull rod 3 are jointly connected to a suction assembly for moving the piston 411 in the sampling tube 4.

[0033] The suction assembly includes a pump 111, an air inlet pipe 112, an air outlet pipe 113 and a disc 114; the mounting cylinder 2 is provided with six circular through holes 201 distributed in a circular array; each sampling tube 4 is provided with a connecting hole 401, and each connecting hole 401 is connected to the corresponding circular through hole 201; the pull rod 3 is bolted to the pump 111; the air inlet end of the pump 111 is connected to the air inlet pipe 112; the air outlet end of the pump 111 is connected to the An air outlet pipe 113 is provided; the pull rod 3 is provided with a hollow portion 302, and the air outlet pipe 113 is connected to the hollow portion 302; a circular through groove 303 is provided in the hollow portion 302; the mounting cylinder 2 is rotatably connected to a disc 114, and the disc 114 is fixedly connected to the pull rod 3; the disc 114 is provided with an L-shaped through hole 11401, and the L-shaped through hole 11401 is connected to the air inlet pipe 112; the axis of the L-shaped through hole 11401 coincides with the axis of the liquid inlet 1101.

[0034] An auxiliary rod 413 is also included; each sampling tube 4 is fixed with an auxiliary rod 413, and the piston 411 is slidably connected to the auxiliary rod 413, and the auxiliary rod 413 is used to make the piston 411 slide stably in the sampling tube 4.

[0035] Considering that in order to ensure the consistency and stability of the final quality of liquid food and understand and control the fermentation state in the entire fermentation tank, the liquid food at different layers is usually tested for fluidity to evaluate the fermentation state of the liquid food. However, the existing sampling device does not have the function of testing the fluidity of liquid food, resulting in low practicality of the existing sampling device.

[0036] Therefore, by adding a piston 411, a control module 412 and a suction component, and a timer and a contact sensor are provided in the control module 412, in Example 1, when the sealing disk 11 is manually driven to rotate thirty degrees clockwise through the pull rod 3, the pull rod 3 will drive the pump 111, the air inlet pipe 112, the air outlet pipe 113 and the disc 114 to rotate thirty degrees clockwise together. When the liquid inlet 1101 is connected to the sampling tube 4 closest to it in the clockwise direction, the L-shaped through hole 11401 will also be connected to the circular through hole 201 closest to it in the clockwise direction. Then, the pump 111 is manually controlled to start, and the pump 111 extracts the air in the sampling tube 4 through the L-shaped through hole 11401, the circular through hole 201 and the connecting hole 401 in turn, and the air extracted by the pump 111 will be discharged to the outside through the hollow part 302 and the circular through groove 303 in turn; as the pump 111 extracts the air The air in the sample tube 4 will form a negative pressure in the sample tube 4, and the piston 411 will move upward in the sample tube 4 driven by the negative pressure. When the piston 411 moves upward, the liquid food is drawn into the sample tube 4; it should be noted that when the pump 111 is started, the pump 111 synchronously starts the control module 412 through the circuit signal, so that the control module 412 starts the timer and the contact sensor inside it to start working, and the timer starts timing. When the piston 411 contacts the control module 412, the contact sensor in the control module 412 controls the timer to stop timing, and the contact sensor controls the pump 111 to stop working. In this way, the time for the liquid food at this layer to be drawn into the sample tube 4 can be obtained. After the sampling is completed, the timing data of the timer can be obtained manually using a reading device. The fluidity of the liquid food at this layer can be judged by the obtained time, which is used to evaluate the fermentation state of the liquid food.

[0037] It should be noted that since the piston 411 is initially located at the tube mouth of the sampling tube 4, after the liquid inlet 1101 is connected with the sampling tube 4 closest to it in the clockwise direction, the liquid food is blocked by the piston 411 and cannot flow into the sampling tube 4. Then, after the liquid inlet 1101 is connected with the sampling tube 4 closest to it in the clockwise direction, the liquid food will not flow into the sampling tube 4, resulting in an error in the time obtained for the liquid food to be drawn into the sampling tube 4.

[0038] Due to the addition of the piston 411, the control module 412 and the suction assembly, the process of taking the liquid food out of the sampling tube 4 in Example 1 will be transformed into the following steps. First, the plugging plate 11, the pump 111, the air inlet pipe 112, the air outlet pipe 113 and the disc 114 are manually driven by the pull rod 3 to rotate 30 degrees clockwise, so that the liquid inlet 1101 is connected to the nearest sampling tube 4 in the clockwise direction, and at the same time, the L-shaped through hole 11401 is connected to the nearest circular through hole 201 in the clockwise direction, and then the pump 111 is controlled to pass through the circular through groove in sequence. 303 and the hollow part 302 draw outside air into the inside thereof, and at the same time, the pump 111 sequentially delivers the drawn outside air to the sampling tube 4 through the L-shaped through hole 11401, the circular through hole 201 and the connecting hole 401. As the air pressure in the sampling tube 4 continues to rise, the piston 411 moves downward in the sampling tube 4 under the push of the air pressure, so that the piston 411 causes the liquid food in the sampling tube 4 to flow out. This method allows the liquid food to flow out of the sampling tube 4 faster, and the piston 411 can also prevent liquid food from remaining in the sampling tube 4, thereby reducing subsequent cleaning work.

[0039] Example 3 On the basis of Example 2, Figure 2-Figure 5 As shown, a refrigeration assembly is also included; each sampling tube 4 is connected to a refrigeration assembly, and each refrigeration assembly is connected to the mounting cylinder 2; the refrigeration assembly consists of a mounting plate 511, a spring member 512, a socket 513, a plug 514, a push rod 515 and a refrigeration tube 516; the mounting cylinder 2 is slidably connected to the mounting plate 511; the mounting plate 511 is fixedly connected to two spring members 512, and all spring members 512 are fixedly connected to the mounting cylinder 2; the mounting cylinder 2 is bolted to the socket 513; the mounting plate 511 is bolted to the plug 514; the mounting plate 511 is fixedly connected to two push rods 515, and all push rods 515 pass through the sampling tube 4, and all push rods 515 are slidably connected to the sampling tube 4; the mounting cylinder 2 is bolted to a refrigeration tube 516 for refrigerating liquid food in the sampling tube 4, and the refrigeration tube 516 is in contact with the sampling tube 4, and the plug 514 and the refrigeration tube 516 are electrically connected through a wire.

[0040] Considering that, in order to prevent the liquid food in the sampling tube 4 from further fermentation or other unexpected changes during the transfer process and to ensure that the liquid food remains stable for a period of time, the liquid food in the sampling tube 4 is usually refrigerated. The existing practice is to transfer the liquid food in all the sampling tubes 4 to a refrigeration device for refrigeration, or directly set a refrigerator in the sampling device to uniformly refrigerate the liquid food in all the sampling tubes 4. The use of refrigeration equipment requires additional equipment, resulting in excessively high sampling costs. In the case of setting a refrigerator in the sampling device, during the detection process, it is necessary to manually test the liquid food in different sampling tubes 4 one by one through instruments such as a mass spectrometer, a high performance liquid chromatograph and a gas chromatograph. Therefore, there will be sampling tubes 4 from which liquid food has been taken out and sampling tubes 4 from which liquid food has not been taken out. That is, the refrigerator will simultaneously cool the sampling tubes 4 from which liquid food has been taken out and the sampling tubes 4 from which liquid food has not been taken out, which will result in a large amount of electrical energy being consumed.

[0041] Therefore, a refrigeration component is added. In the process of the piston 411 moving upward inside the sampling tube 4 to draw the liquid food into the sampling tube 4, when the piston 411 contacts the push rod 515, as the piston 411 continues to move upward, the piston 411 pushes the mounting plate 511 and the plug 514 upward through the push rod 515 and compresses the spring member 2 512, so that when the piston 411 contacts the control module 412, the plug 514 will be inserted into the socket 513, so that the socket 513 supplies power to the refrigeration tube 516 through the plug 514, so that the refrigeration tube 516 works to cool and preserve the sampling tube 4. In the process of taking the liquid food out of the sampling tube 4, as the piston 411 moves in the taking When the sample tube 4 moves downward and the push rod 515 loses the support of the piston 411, the spring member 512 will push the mounting plate 511, the plug 514 and the push rod 515 downward, so that the plug 514 is pulled out from the socket 513, and the refrigeration tube 516 stops working. In this way, after the liquid food in each sampling tube 4 is taken out, the corresponding refrigeration tube 516 stops working immediately, so as to avoid the use of refrigeration equipment, which requires additional equipment and leads to excessively high sampling costs. If a refrigerator is set in the sampling device, the refrigerator will cool the sampling tube 4 with liquid food taken out and the sampling tube 4 with no liquid food taken out at the same time, resulting in a large amount of electricity consumption.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A contamination-proof convenient sampling device for food testing, comprising a base (1), a mounting tube (2), a pull rod (3) and a sampling tube (4); the base (1) is slidably connected to the mounting tube (2); the mounting tube (2) is rotatably connected to the pull rod (3); the mounting tube (2) is fixedly connected to a plurality of sampling tubes (4); the characteristics are: The invention also comprises a rhombus-shaped telescopic frame (5), a sliding plate (6), a floating plate (7), a spring telescopic rod (8), a round ball (9), an arc block (10), a blocking plate (11) and a locking assembly; the base (1) is fixedly connected to at least one rhombus-shaped telescopic frame (5); the rhombus-shaped telescopic frame (5) is fixedly connected to the sliding plate (6), and the sliding plate (6) is slidably connected to the base (1); the sliding plate (6) is fixedly connected to the floating plate (7); the rhombus-shaped telescopic frame (5) is provided with a plurality of rotating parts (501); each rotating part (501) is fixedly connected to a spring telescopic rod (8); the telescopic part of each spring telescopic rod (8) is fixedly connected to a round ball (9); the mounting tube (2) is fixedly connected to at least one arc The arc block (10) and the arc block (10) are on the same axis as the sphere (9); each arc block (10) is provided with a spherical groove (1001); the mounting cylinder (2) is rotatably connected to a blocking disk (11), and the blocking disk (11) is fixedly connected to the pull rod (3); the blocking disk (11) is provided with a liquid inlet (1101); the diamond-shaped telescopic frame (5), the slide plate (6), the floating plate (7), the spring telescopic rod (8), the sphere (9) and the arc block (10) cooperate to realize adaptive adjustment of the sampling position according to the liquid height in the fermentation barrel; the base (1) is connected to a locking assembly matching the number of slide plates (6), and the locking assembly is used to lock the slide plates (6).

2. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: The locking assembly comprises an extrusion plate (211), a locking plate (212) and a spring member 1 (213); the base (1) is slidably connected to the extrusion plate (211); the extrusion plate (211) is provided with a handle 2 (21101); the base (1) is slidably connected to two locking plates (212), and each locking plate (212) is in contact with the extrusion plate (211), and the sliding plate (6) is located between the two locking plates (212); each locking plate (212) is fixedly connected to a plurality of spring members 1 (213), and all the spring members 1 (213) are fixedly connected to the base (1); the extrusion plate (211) is provided with a triangular portion (21102); and each locking plate (212) is provided with an inclined portion (21201).

3. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: The invention also includes a positioning assembly; the base (1) and the pull rod (3) are connected together with a positioning assembly for ensuring that the liquid inlet (1101) and the sampling tube (4) are completely connected; the positioning assembly is composed of a positioning plate (311), a sliding ring (312), an L-shaped sliding plate (313), a second spring telescopic rod (314) and a second round ball (315); the base (1) is fixedly connected with the positioning plate (311); the positioning plate (311) is provided with two spherical grooves (31101) matching the number of the sampling tubes (4); the second spherical grooves (31101) are provided with a plurality of spherical grooves (31101) and a plurality of spherical grooves (31101) and a plurality of spherical grooves (31101) and a plurality of spherical grooves (31101) are provided with the ... and a ) coincides with the axis of the sampling tube (4); the pull rod (3) is slidably connected to a sliding ring (312); the sliding ring (312) is fixedly connected to an L-shaped sliding plate (313), and the L-shaped sliding plate (313) is slidably connected to a positioning plate (311); the sliding ring (312) is fixedly connected to a spring telescopic rod 2 (314); the telescopic portion of the spring telescopic rod 2 (314) is fixedly connected to a spherical ball 2 (315), and the spherical ball 2 (315) is in contact with the positioning plate (311), and the spherical ball 2 (315) coincides with the axis of the liquid inlet (1101).

4. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: The liquid inlet (1101) is configured to be in a truncated cone shape.

5. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: A round seat portion (101) is provided at the bottom of the base (1).

6. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: The pull rod (3) is provided with a handle 1 (301).

7. The anti-pollution convenient sampling device for food testing according to claim 1, characterized in that: It also includes a piston (411), a control module (412) and a suction assembly; the sampling tube (4) is slidably connected to the piston (411); at least one control module (412) is fixedly connected to each sampling tube (4); the mounting cylinder (2) and the pull rod (3) are jointly connected to the suction assembly; the piston (411), the control module (412) and the suction assembly cooperate to detect the fluidity of liquid food.

8. The anti-pollution convenient sampling device for food testing according to claim 7, characterized in that: The suction assembly comprises a pump (111), an air inlet pipe (112), an air outlet pipe (113) and a disc (114); the mounting cylinder (2) is provided with circular through holes (201) matching the number of sampling tubes (4); each sampling tube (4) is provided with a connecting hole (401), and each connecting hole (401) is connected to a corresponding circular through hole (201); the pull rod (3) is fixedly connected to the pump (111); the air inlet end of the pump (111) is connected to the air inlet pipe (112); the air outlet end of the pump (111) is connected to An air outlet pipe (113); the pull rod (3) is provided with a hollow portion (302), and the air outlet pipe (113) is connected to the hollow portion (302); the hollow portion (302) is provided with a circular through groove (303); the mounting cylinder (2) is rotatably connected to a disc (114), and the disc (114) is fixedly connected to the pull rod (3); the disc (114) is provided with an L-shaped through hole (11401), and the L-shaped through hole (11401) is connected to the air inlet pipe (112); the axis of the L-shaped through hole (11401) coincides with the axis of the liquid inlet (1101).

9. The anti-pollution convenient sampling device for food testing according to claim 7, characterized in that: It also includes an auxiliary rod (413); each sampling tube (4) is fixedly connected to an auxiliary rod (413), and the piston (411) is slidably connected to the auxiliary rod (413).

10. The anti-pollution convenient sampling device for food testing according to claim 7, characterized in that: The invention also comprises a refrigeration assembly; each sampling tube (4) is connected to a refrigeration assembly for refrigerating the liquid food therein, and each refrigeration assembly is connected to the mounting cylinder (2); the refrigeration assembly comprises a mounting plate (511), a second spring member (512), a socket (513), a plug (514), a push rod (515) and a refrigeration pipe (516); the mounting cylinder (2) is slidably connected to the mounting plate (511); the mounting plate (511) is fixedly connected to at least one second spring member (512), and the second spring member (51 2) is fixedly connected to the mounting cylinder (2); the mounting cylinder (2) is fixedly connected with a socket (513); the mounting plate (511) is fixedly connected with a plug (514); the mounting plate (511) is fixedly connected with at least one push rod (515), and the push rod (515) passes through the sampling tube (4), and the push rod (515) is slidably connected to the sampling tube (4); the mounting cylinder (2) is fixedly connected with a refrigeration tube (516), and the refrigeration tube (516) is in contact with the sampling tube (4), and the plug (514) and the refrigeration tube (516) are electrically connected via a wire.

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