Multifunctional food sampler for food safety detection

Abstract

The invention relates to the field of food sampling, in particular to a multifunctional food sampler for food safety detection, which comprises a storage tube, a handle, a pull rod, a circular suction plate and the like. The storage pipe is fixedly connected with a handle; the storage pipe is slidably connected with a pull rod; the pull rod is rotationally connected with a circular suction plate; the circular suction plate is positioned in the storage pipe; the pull rod is provided with a hollow part; a plurality of air inlet holes are formed in the hollow part; a plurality of first air outlet holes are formed in the hollow part. Through the arrangement of a circular suction plate, an annular mounting plate, a silicone tube, a flexible isolation tube and an adjusting assembly, only the lower surface of the circular suction plate and one surface of the flexible isolation tube are in contact with liquid food in the process of extracting and discharging the liquid food by the sampler; only the surfaces, in contact with the liquid food, of the circular suction plate and the flexible isolation pipe need to be manually cleaned subsequently, so that the problem that the sampling work efficiency is greatly influenced as the cleaning and disinfecting process of the conventional injection type sampler is very tedious and complicated is solved.

Description

Technical Field

[0001] The invention relates to the field of food sampling, in particular to a multifunctional food sampler for food safety detection. Background Art

[0002] In the prior art, when sampling liquid food, a syringe sampler is usually used, and the syringe sampler is usually composed of a storage cylinder, a piston and a piston rod. In the process of sampling liquid food, the lower end of the storage cylinder of the syringe sampler is first inserted into the liquid food, and then the piston rod is used to pull the piston to move in the storage cylinder, so that negative pressure is generated in the storage cylinder, and the generated negative pressure draws the liquid food into the storage cylinder through the feeding port to complete the sampling process;

[0003] In order to prevent the residual liquid food on the injection sampler from affecting the secondary use of the injection sampler, the injection sampler needs to be cleaned and disinfected before storage. However, during the cleaning and disinfection process of the injection sampler, in order to ensure that each part of the injection sampler that contacts the liquid food is thoroughly cleaned and disinfected, the storage cylinder, piston and piston rod of the injection sampler need to be disassembled before cleaning and disinfection, and then the storage cylinder, piston and piston rod of the injection sampler are cleaned and disinfected respectively. After cleaning and disinfection, the storage cylinder, piston and piston rod of the injection sampler are assembled. Therefore, the cleaning and disinfection process of the existing injection sampler is extremely cumbersome and complicated, which greatly affects the efficiency of the sampling work. Summary of the invention

[0004] In order to overcome the shortcomings of existing injection samplers in that the cleaning and disinfection process is extremely cumbersome and complicated, which greatly affects the efficiency of sampling work, the present invention provides a multifunctional food sampler for food safety testing.

[0005] The technical solution is: a multifunctional food sampler for food safety testing, including a storage tube, a handle, a pull rod and a circular suction plate; the storage tube is fixedly connected to the handle; the storage tube is slidably connected to the pull rod; the pull rod is rotatably connected to the circular suction plate, and the circular suction plate is located in the storage tube; the pull rod is provided with a hollow portion; the hollow portion is provided with a plurality of air inlet holes; the hollow portion is provided with a plurality of air outlet holes; it also includes an annular mounting plate, a silicone tube, a flexible isolation tube and an adjustment assembly; the storage tube is connected to the annular mounting plate; the annular mounting plate is fixedly connected to the silicone tube, and the silicone tube is in contact with the storage tube; the silicone tube is fixedly connected to the flexible isolation tube, and the other end of the flexible isolation tube is wrapped around the inside of the storage tube and fixedly connected to the circular suction plate, the flexible isolation tube is used to prevent liquid food from contacting the inner wall of the storage tube; the storage tube and the pull rod are jointly connected to an adjustment assembly, and the adjustment assembly is used to prevent liquid food drawn into the storage tube from flowing out.

[0006] As an improvement of the above scheme, the adjustment assembly includes a circular mounting plate, a long rope, an extrusion rope and a locking unit; the pull rod is slidably connected to the circular mounting plate, and the circular mounting plate is rotatably connected to the storage tube; the circular mounting plate is fixedly connected to a number of long ropes; the storage tube is slidably connected to a number of extrusion ropes, and both ends of each extrusion rope are fixedly connected to the corresponding long rope, and each extrusion rope is in contact with the flexible isolation tube, and the extrusion rope is used to pull the flexible isolation tube to deform; the storage tube is connected to a locking unit for keeping the extrusion rope from pulling the flexible isolation tube to deform.

[0007] As an improvement of the above scheme, the locking unit includes a mounting block, a round-headed rod, an annular fixing plate and a spring component; the circular mounting plate is provided with a plurality of through holes; the storage tube is fixedly connected to a plurality of mounting blocks; each mounting block is slidably connected to a round-headed rod; all the round-headed rods are commonly fixedly connected to an annular fixing plate; each round-headed rod is sleeved with a spring component, and each spring component is fixedly connected to the corresponding mounting block, and all the spring components are fixedly connected to the annular fixing plate.

[0008] As an improvement of the above solution, an arc-shaped portion is provided at the lower end of the storage tube.

[0009] As an improvement of the above solution, the storage tube is provided with inclined parts matching the number of long ropes.

[0010] As an improvement of the above solution, a scale ruler is provided on the outer wall of the storage tube; the storage tube, the silicone tube and the flexible isolation tube are all made of transparent materials.

[0011] As an improvement of the above scheme, it also includes a fixing component; the storage tube is connected to multiple fixing components, and the fixing components are connected to the annular mounting plate, and the storage tube and the annular mounting plate are connected together through the fixing components; the fixing component consists of a fixing block, a connecting sliding block and a screw; the storage tube is fixedly connected to the fixing block; the storage tube is slidably connected to the connecting sliding block, and the connecting sliding block is fixedly connected to the annular mounting plate; the fixing block is rotatably connected to the screw, and the screw is fixedly connected to the connecting sliding block.

[0012] As an improvement of the above scheme, it also includes a mounting rod, two spring parts, one blocking block and two blocking blocks; two air outlet holes are opened on the lower side of the hollow part, and the two air outlet holes are located below the air inlet hole; the pull rod is slidably connected to the mounting rod; the mounting rod is sleeved and fixedly connected with two spring parts, and the two spring parts are fixedly connected to the pull rod; the mounting rod is fixedly connected with one blocking block for blocking the one air outlet, and the one blocking block is slidably connected to the hollow part, and the one blocking block is located above the one air outlet; the mounting rod is fixedly connected with two blocking blocks for blocking the two air outlets, and the two blocking blocks are in contact with the two air outlets.

[0013] As an improvement of the above solution, the second air outlet hole is set in a truncated cone shape, and the second blocking block matches the shape of the second air outlet hole.

[0014] As an improvement of the above solution, the air outlet hole 1 is provided with a filter layer.

[0015] Beneficial effects: Through the arrangement of the circular suction plate, the annular mounting plate, the silicone tube, the flexible isolation tube and the adjustment assembly, in the process of extracting and discharging liquid food, only the lower surface of the circular suction plate and one side of the flexible isolation tube will contact the liquid food, so that only the side of the circular suction plate and the flexible isolation tube in contact with the liquid food needs to be cleaned manually later, thereby avoiding the cumbersome and complicated cleaning and disinfection process of the existing injection sampler, which greatly affects the sampling efficiency;

[0016] By setting the fixing assembly, the silicone tube and the flexible isolation tube can be stored inside the storage tube, and then the silicone tube is blocked by adjusting the assembly to prevent external dust from contacting the side of the circular suction plate and the flexible isolation tube that is in contact with the liquid food. In this way, the side of the circular suction plate and the flexible isolation tube that is in contact with the liquid food is prevented from being contaminated by external air during the storage of the sampler, and the problem that the sampler needs to be cleaned and disinfected before sampling and testing can be performed next time it is used.

[0017] By installing the rod, spring member 2, blocking block 1, blocking block 2 and air outlet hole 2, the air in the air cavity is discharged through the air outlet hole 2 to limit the outside air from entering the inside of the silicone tube and the flexible isolation tube, thereby preventing the outside air from simultaneously entering the inside of the silicone tube and the flexible isolation tube as the circular suction plate moves upward in the storage tube, which in turn leads to the problem that after the subsequent adjustment component blocks the silicone tube, the side of the circular suction plate and the flexible isolation tube that is in contact with the liquid food will still be easily contaminated by the outside air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure disclosed by the multifunctional food sampler for food safety detection of the present invention;

[0019] Figure 2 A schematic diagram of the combined structure of a storage tube, a pull rod, an annular mounting plate, a silicone tube, a flexible isolation tube, a circular mounting plate, a long rope mounting block, an annular fixing plate and a fixing block disclosed by the multifunctional food sampler for food safety detection of the present invention;

[0020] Figure 3 A combined cross-sectional view of a storage tube, a silicone tube and a flexible isolation tube disclosed in the multifunctional food sampler for food safety detection of the present invention;

[0021] Figure 4 A schematic diagram of the combined structure of a storage tube, a flexible isolation tube, a long rope and an extrusion rope disclosed by the multifunctional food sampler for food safety detection of the present invention;

[0022] Figure 5It is a schematic diagram of the combined structure of the circular mounting plate and the locking unit disclosed in the multifunctional food safety detection food sampler of the present invention;

[0023] Figure 6 A cross-sectional view of a pull rod disclosed by the multifunctional food sampler for food safety detection of the present invention;

[0024] Figure 7 A state diagram of the circular suction plate disclosed in the multifunctional food safety detection food sampler of the present invention when sucking liquid food into the storage part;

[0025] Figure 8 This is a schematic diagram of the structure of the storage tube disclosed by the multifunctional food sampler for food safety testing of the present invention.

[0026] The numbers in the figure are as follows: 1-storage tube, 2-handle, 3-pull rod, 4-circular suction plate, 5-annular mounting plate, 6-silicone tube, 7-flexible isolation tube, 111-circular mounting plate, 112-long rope, 113-extrusion rope, 121-mounting block, 122-round head rod, 123-annular fixing plate, 124-spring part one, 211-fixing block, 212-connecting sliding block, 213-screw, 311-mounting rod, 312-spring part two, 313-blocking block one, 314-blocking block two, 101-arc-shaped portion, 102-inclined portion, 103-air cavity portion, 301-hollow portion, 302-air inlet, 303-air outlet one, 304-air outlet two, 701-storage portion, 11101-through hole. DETAILED DESCRIPTION

[0027] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0028] Example 1

[0029] A multifunctional food sampler for food safety testing, such as Figure 1-Figure 8 As shown, it includes a storage tube 1, a handle 2, a pull rod 3 and a circular suction plate 4; the storage tube 1 is bolted with the handle 2; the storage tube 1 is slidably connected with the pull rod 3; the pull rod 3 is rotatably connected with the circular suction plate 4, and the circular suction plate 4 is located in the storage tube 1; the pull rod 3 is provided with a hollow part 301; four air inlet holes 302 are opened at the lower side of the hollow part 301; four air outlet holes 303 are opened at the upper side of the hollow part 301;

[0030] It also includes an annular mounting plate 5, a silicone tube 6, a flexible isolation tube 7 and an adjustment component; the storage tube 1 is connected to the annular mounting plate 5; the annular mounting plate 5 is fixedly connected to the silicone tube 6, and the silicone tube 6 is in contact with the storage tube 1; the silicone tube 6 is fixedly connected to the flexible isolation tube 7, and the other end of the flexible isolation tube 7 is wound around the inner side of the storage tube 1 and fixedly connected to the circular suction plate 4; the silicone tube 6 is used to drive the flexible isolation tube 7 to restore the initial position; the storage tube 1 and the pull rod 3 are commonly connected to an adjustment component.

[0031] The adjustment assembly includes a circular mounting plate 111, a long rope 112, an extrusion rope 113 and a locking unit; the pull rod 3 is slidably connected to the circular mounting plate 111, and the circular mounting plate 111 is rotatably connected to the storage tube 1; the circular mounting plate 111 is fixedly connected to four long ropes 112; the storage tube 1 is slidably connected to two extrusion ropes 113, and both ends of each extrusion rope 113 are fixedly connected to the corresponding long rope 112, and each extrusion rope 113 is in contact with the flexible isolation tube 7; the storage tube 1 is connected to a locking unit.

[0032] The locking unit includes a mounting block 121, a round-headed rod 122, an annular fixing plate 123 and a spring member 124; the circular mounting plate 111 is provided with four through holes 11101 distributed in an annular array; the storage tube 1 is bolted to four mounting blocks 121 distributed in an annular array; each mounting block 121 is slidably connected to a round-headed rod 122; all the round-headed rods 122 are fixedly connected to an annular fixing plate 123; each round-headed rod 122 is sleeved with a spring member 124, and each spring member 124 is fixedly connected to the corresponding mounting block 121, and all the spring members 124 are fixedly connected to the annular fixing plate 123.

[0033] The lower end of the storage tube 1 is provided with an arc-shaped portion 101 for better turning the flexible isolation tube 7 toward the inside thereof.

[0034] The storage tube 1 is provided with four inclined portions 102 , and the inclined portions 102 are used to make the long rope 112 better wound onto the storage tube 1 .

[0035] A scale is provided on the outer wall of the storage tube 1; the storage tube 1, the silicone tube 6 and the flexible isolation tube 7 are all made of transparent materials, and this setting is used to enable a human to judge whether a specified amount of liquid food has been extracted.

[0036] The specific operation of the above embodiment 1 is as follows: It should be noted that, if Figure 7As shown, the area from the inner upper side of the storage tube 1 to the upper surface of the circular suction plate 4 is described as the air cavity portion 103, and the area from the lower surface of the circular suction plate 4 in the flexible isolation tube 7 to the extrusion rope 113 is described as the storage portion 701. The round head rod 122 is restricted by the circular mounting plate 111, and the round head rod 122 will push the spring member 124 to stretch, that is, under the action of the round head rod 122 and the circular mounting plate 111, the spring member 124 will initially maintain a stretched state.

[0037] When sampling liquid food, a person holds the handle 2 with one hand to pick up the storage tube 1 and its connected parts, and drives the storage tube 1 and its connected parts to move, so that the lower end of the flexible isolation tube 7 is inserted into the liquid food, and then, as shown in FIG. Figure 3 and Figure 7 As shown, the worker holds the pull rod 3 with his other hand and pulls the circular suction plate 4 upward through the pull rod 3, so that the circular suction plate 4 drives the flexible isolation tube 7 to gradually flip toward the inside of the storage tube 1 and move upward inside the storage tube 1. Then, as the circular suction plate 4 gradually moves, the space of the storage portion 701 will gradually increase and gradually pull the silicone tube 6 to stretch. At the same time, during the movement of the circular suction plate 4, the circular suction plate 4 will draw the liquid food into the storage portion 701. During this process, the air in the air cavity portion 103 will be squeezed by the circular suction plate 4, and the air in the air cavity portion 103 will be discharged to the outside through the air inlet 302, the hollow portion 301 and the air outlet 303 in turn. Therefore, the circular suction plate 4 can move normally in the storage tube 1.

[0038] After the liquid food is extracted from the storage part 701, the pull rod 3 is manually driven to rotate clockwise, looking from top to bottom as a reference, until the round-headed rod 122 is aligned with the corresponding through hole 11101. During this process, the pull rod 3 will drive the circular mounting plate 111 to rotate clockwise, and the circular mounting plate 111 will pull the long rope 112 to wrap around the storage tube 1. The squeezing rope 113 will move on the storage tube 1 under the pull of the corresponding two long ropes 112. The two squeezing ropes 113 squeeze the flexible isolation tube 7, so that the part where the flexible isolation tube 7 contacts the two squeezing ropes 113 moves toward the center point of the storage tube 1 under the squeezing of the two squeezing ropes 113. When the round-headed rod 122 is aligned with the corresponding through hole 11101 When the flexible isolation tube 7 and the two extrusion ropes 113 are in contact with each other at the center point of the storage tube 1, the lower opening of the storage portion 701 is blocked, and when the round-headed rod 122 is aligned with the corresponding through hole 11101, the spring member 124 will initially remain in a stretched state under the action of the round-headed rod 122 and the circular mounting plate 111. Therefore, the spring member 124 will push the round-headed rod 122 to be inserted into the corresponding through hole 11101, so that the annular mounting plate 5 cannot continue to rotate, so that the lower opening of the storage portion 701 remains blocked to prevent the liquid food in the storage portion 701 from flowing out from the interior thereof when the lower end of the flexible isolation tube 7 is subsequently moved away from the liquid food.

[0039] When the lower opening of the storage section 701 is blocked, the storage tube 1 and its connected parts are manually moved away from the liquid food through the handle 2, and then the lower end of the flexible isolation tube 7 is inserted into the sampling tube, and then the round head rod 122 is manually moved downward through the annular fixing plate 123, and the spring member 124 is stretched to make the round head rod 122 disengage from the through hole 11101, and then, looking from top to bottom as a reference, the annular mounting plate 5 is manually driven to rotate counterclockwise through the pull rod 3, so that the portion where the long rope 112 is wrapped around the storage tube 1 is unwound. At this time, since the extrusion rope 113 loses the pulling force from the long rope 112, the portion where the flexible isolation tube 7 contacts the extrusion rope 113 will return to its initial state under the action of its own elastic force and the silicone tube 6, that is, the blockage of the lower opening of the storage section 701 will be released, and at this time, the liquid food in the storage section 701 will flow into the sampling tube.

[0040] When all the liquid food in the storage part 701 flows into the sampling tube, when the sampler needs to be cleaned and disinfected, the circular suction plate 4 is first pushed downward to the initial position by the pull rod 3. During this process, as the circular suction plate 4 gradually moves downward, the silicone tube 6 will gradually pull the flexible isolation tube 7 to move upward outside the storage tube 1, so that the flexible isolation tube 7 is moved upward by the silicone tube 6. Figure 7 The status shown is restored to Figure 3In the state shown, at this time, since only the lower surface of the circular suction plate 4 and one side of the flexible isolation tube 7 will come into contact with the liquid food during the process of extracting and discharging the liquid food, manual cleaning is required later only on the side of the circular suction plate 4 and the flexible isolation tube 7 that are in contact with the liquid food. At the same time, since the circular suction plate 4 is located near the lower end of the storage tube 1, and the part of the flexible isolation tube 7 that is in contact with the liquid food is on the side away from the storage tube 1, it is convenient for manual cleaning of the side of the circular suction plate 4 and the flexible isolation tube 7 that are in contact with the liquid food, so as to avoid the problem that the cleaning and disinfection process of the existing injection sampler is cumbersome and complicated, which greatly affects the efficiency of the sampling work.

[0041] Furthermore, in the process of extracting liquid food into the storage portion 701, since the storage tube 1, the silicone tube 6 and the flexible isolation tube 7 are all made of transparent materials, a person can manually observe through the storage tube 1, the silicone tube 6 and the flexible isolation tube 7 that the circular suction plate 4 is located at the position of the scale scale set on the outer wall of the storage tube 1. Then, a person can manually determine whether a specified amount of liquid food is extracted from the storage portion 701 by observing the position of the circular suction plate 4 at the scale scale set on the outer wall of the storage tube 1.

[0042] Example 2

[0043] On the basis of Example 1, Figure 1-Figure 3 As shown, it also includes a fixing component; the storage tube 1 is connected to two fixing components, and the fixing components are connected to the annular mounting plate 5, and the storage tube 1 and the annular mounting plate 5 are connected together through the fixing components; the fixing component consists of a fixing block 211, a connecting sliding block 212 and a screw 213; the storage tube 1 is bolted to the fixing block 211; the storage tube 1 is slidably connected to the connecting sliding block 212, and the connecting sliding block 212 is bolted to the annular mounting plate 5; the fixing block 211 is rotatably connected to the screw 213, and the screw 213 is bolted to the connecting sliding block 212, and the fixing block 211 and the connecting sliding block 212 are fixed together by the screw 213.

[0044] The nut of the screw rod 213 is provided with an arc-shaped protrusion, which is used to make it easier for manual rotation of the screw rod 213.

[0045] The specific operation of the above-mentioned embodiment 2 is as follows: Considering that, after the side of the circular suction plate 4 and the flexible isolation tube 7 in contact with the liquid food is cleaned and disinfected, the purpose of disinfection is to avoid liquid food contamination during subsequent use. However, since the side of the circular suction plate 4 and the flexible isolation tube 7 in contact with the liquid food is exposed to the outside world, during the storage of the sampler, the side of the circular suction plate 4 and the flexible isolation tube 7 in contact with the liquid food will be contaminated by the outside air, and then the next time it is used, it needs to be cleaned and disinfected before sampling and testing can be carried out.

[0046] Therefore, before the sampler is stored after being sterilized, the screw rod 213 is first manually rotated to unscrew the screw rod 213 from the connecting slide block 212, and then the circular suction plate 4 is manually pulled upward by the pull rod 3, so that the circular suction plate 4 drives the flexible isolation tube 7 to move upward inside the storage tube 1. In this process, since the screw rod 213 has been unscrewed from the connecting slide block 212, the flexible isolation tube 7 will successively pull the connecting slide block 212 through the silicone tube 6 and the annular mounting plate 5 to slide on the storage tube 1 until the connecting slide block 212 slides to the lowermost end of the storage tube 1. At this time, the silicone tube 6 and the flexible isolation tube 7 will be stored inside the storage tube 1. At this time, the extrusion rope 113 changes from the initial contact with the flexible isolation tube 7 to the contact with the silicone tube 6, and then by rotating the pull rod 3 clockwise as described in the above embodiment 1, the parts where the silicone tube 6 and the two extrusion ropes 113 contact each other at the center point of the storage tube 1 to block the silicone tube 6 to prevent external dust from contacting the side of the circular suction plate 4 and the flexible isolation tube 7 that are in contact with the liquid food. In this way, the side of the circular suction plate 4 and the flexible isolation tube 7 that are in contact with the liquid food during the storage of the sampler is prevented from being contaminated by the external air, and the next time it is used, it needs to be cleaned and disinfected before sampling and testing can be carried out.

[0047] Example 3

[0048] On the basis of Example 2, Figure 6 As shown, it also includes a mounting rod 311, a second spring member 312, a blocking block 1 313 and a second blocking block 314; an air outlet hole 2 304 is opened on the lower side of the hollow portion 301, and the air outlet hole 2 304 is located below the air inlet 302; the pull rod 3 is slidably connected to the mounting rod 311; the mounting rod 311 is sleeved and fixedly connected with the second spring member 312, and the second spring member 312 is fixedly connected to the pull rod 3; the mounting rod 311 is fixedly connected with the blocking block 1 313, and the blocking block 1 313 is slidably connected to the hollow portion 301, and the blocking block 1 313 is located above the air outlet hole 1 303; the mounting rod 311 is fixedly connected with the blocking block 2 314, and the blocking block 2 314 is in contact with the air outlet hole 2 304.

[0049] The second air outlet hole 304 is in a truncated cone shape, and the second sealing block 314 matches the shape of the second air outlet hole 304. This setting is used to prevent the air discharged from the second air outlet hole 304 from entering the inside of the silicone tube 6 and the flexible isolation tube 7 better.

[0050] The air outlet 1 303 is provided with a filter layer for filtering the external air.

[0051] The specific operation of the above-mentioned embodiment 3 is as follows: Considering that in the process of storing the silicone tube 6 and the flexible isolation tube 7 inside the storage tube 1, as the circular suction plate 4 moves upward inside the storage tube 1, the outside air will simultaneously enter the inside of the silicone tube 6 and the flexible isolation tube 7, which will result in that after the subsequent adjustment component blocks the silicone tube 6, the side of the circular suction plate 4 and the flexible isolation tube 7 that is in contact with the liquid food will still be easily contaminated by the outside air.

[0052] Therefore, before manually pulling the circular suction plate 4 upward by the pull rod 3, first manually push the installation rod 311 to move downward on the pull rod 3, and compress the spring member 2 312, so that the installation rod 311 pushes the blocking block 1 313 and the blocking block 2 314 to move downward, so that the blocking block 1 313 blocks the air outlet 1 303, and the blocking block 2 314 no longer blocks the air outlet 2 304. In the process of the pull rod 3 pulling the circular suction plate 4 upward, since the air outlet 1 303 has been blocked by the blocking block 1 313, the air in the air cavity 103 is discharged from the circular suction plate 4. 4, the air in the air cavity portion 103 will be discharged from the air inlet 302, the hollow portion 301 and the second air outlet 304 in sequence, and the air discharged from the second air outlet 304 will limit the outside air from entering the inside of the silicone tube 6 and the flexible isolation tube 7, so as to avoid the problem that as the circular suction plate 4 moves upward in the storage tube 1, the outside air will simultaneously enter the inside of the silicone tube 6 and the flexible isolation tube 7, which will lead to the problem that after the subsequent adjustment component blocks the silicone tube 6, the side of the circular suction plate 4 and the flexible isolation tube 7 that is in contact with the liquid food will still be easily contaminated by the outside air. When the sampler needs to be used again, firstly, the pull rod 3 is manually rotated counterclockwise as described in Example 1 so that the contact parts of the silicone tube 6 and the two extrusion ropes 113 no longer continue to contact each other, and then the circular suction plate 4 is manually pushed downward by the pull rod 3 until the circular suction plate 4 moves back to the initial position, and then the annular mounting plate 5 and the parts connected thereto are manually pushed to move outside the storage tube 1 so that the annular mounting plate 5 moves to the initial position, and then the screw 213 is manually screwed back into the connecting slide block 212 so that the connecting slide block 212 and the fixing block 211 are fixed together again by the screw 213, so that the sampler is restored to the state as shown in the figure. Figure 1 The initial state is shown.

[0053] It should be noted that, in the process of manually pushing the circular suction plate 4 downward through the pull rod 3 to move the circular suction plate 4 back to the initial position, the blocking block 1 313 has not blocked the air outlet 1 303, and the air outlet 2 304 has been blocked by the blocking block 2 314, then the outside air can enter into the air cavity portion 103 through the air outlet 1 303, the hollow portion 301 and the air inlet 302 in sequence, then the circular suction plate 4 can move downward normally in the storage tube 1.

[0054] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A multifunctional food sampler for food safety detection, comprising a storage tube (1), a handle (2), a pull rod (3) and a circular suction plate (4); the storage tube (1) is fixedly connected to the handle (2); the storage tube (1) is slidably connected to the pull rod (3); the pull rod (3) is rotatably connected to the circular suction plate (4), and the circular suction plate (4) is located in the storage tube (1); the pull rod (3) is provided with a hollow portion (301); the hollow portion (301) is provided with a plurality of air inlet holes (302); the hollow portion (301) is provided with a plurality of air outlet holes (303); wherein the characteristics are as follows: The storage tube (1) is connected to the annular mounting plate (5); the annular mounting plate (5) is fixedly connected to the silicone tube (6), and the silicone tube (6) is in contact with the storage tube (1); the silicone tube (6) is fixedly connected to the flexible isolation tube (7), and the other end of the flexible isolation tube (7) is wound around the inside of the storage tube (1) and fixedly connected to the circular suction plate (4), and the flexible isolation tube (7) is used to prevent liquid food from contacting the inner wall of the storage tube (1); the storage tube (1) and the pull rod (3) are jointly connected to the adjustment component, and the adjustment component is used to prevent liquid food drawn into the storage tube (1) from flowing out.

2. A multifunctional food sampler for food safety detection according to claim 1, characterized in that: The adjustment component comprises a circular mounting plate (111), a long rope (112), an extrusion rope (113) and a locking unit; the pull rod (3) is slidably connected to the circular mounting plate (111), and the circular mounting plate (111) is rotatably connected to the storage tube (1); the circular mounting plate (111) is fixedly connected to a plurality of long ropes (112); the storage tube (1) is slidably connected to a plurality of extrusion ropes (113), and both ends of each extrusion rope (113) are fixedly connected to the corresponding long rope (112), and each extrusion rope (113) is in contact with the flexible isolation tube (7), and the extrusion rope (113) is used to pull the flexible isolation tube (7) to deform; the storage tube (1) is connected to a locking unit used to keep the extrusion rope (113) from pulling the flexible isolation tube (7) to deform.

3. A multifunctional food sampler for food safety detection according to claim 2, characterized in that: The locking unit comprises a mounting block (121), a round-headed rod (122), an annular fixing plate (123) and a spring member (124); the circular mounting plate (111) is provided with a plurality of through holes (11101); the storage tube (1) is fixedly connected to a plurality of mounting blocks (121); each mounting block (121) is slidably connected to a round-headed rod (122); all the round-headed rods (122) are commonly fixedly connected to an annular fixing plate (123); each round-headed rod (122) is sleeved with a spring member (124), each spring member (124) is fixedly connected to the corresponding mounting block (121), and all the spring members (124) are fixedly connected to the annular fixing plate (123).

4. The multifunctional food sampler for food safety detection according to claim 3 is characterized in that: The lower end of the storage tube (1) is provided with an arc-shaped portion (101).

5. The multifunctional food sampler for food safety detection according to claim 2 is characterized in that: The storage tube (1) is provided with inclined parts (102) whose number matches the number of long ropes (112).

6. The multifunctional food sampler for food safety detection according to claim 1, characterized in that: A scale is provided on the outer wall of the storage tube (1); the storage tube (1), the silicone tube (6) and the flexible isolation tube (7) are all made of transparent materials.

7. The multifunctional food sampler for food safety detection according to claim 6 is characterized in that: The storage tube (1) further comprises a fixing assembly; the storage tube (1) is connected to a plurality of fixing assemblies, and the fixing assemblies are connected to the annular mounting plate (5), and the storage tube (1) and the annular mounting plate (5) are connected together via the fixing assemblies; the fixing assembly is composed of a fixing block (211), a connecting sliding block (212) and a screw rod (213); the storage tube (1) is fixedly connected to the fixing block (211); the storage tube (1) is slidably connected to the connecting sliding block (212), and the connecting sliding block (212) is fixedly connected to the annular mounting plate (5); the fixing block (211) is rotatably connected to the screw rod (213), and the screw rod (213) is fixedly connected to the connecting sliding block (212).

8. The multifunctional food sampler for food safety detection according to claim 1, characterized in that: The invention also comprises a mounting rod (311), a second spring member (312), a first blocking block (313) and a second blocking block (314); a second air outlet hole (304) is provided on the lower side of the hollow portion (301), and the second air outlet hole (304) is located below the air inlet hole (302); the pull rod (3) is slidably connected to the mounting rod (311); the mounting rod (311) is sleeved and fixedly connected to the second spring member (312), and the second spring member (312) and the pull rod (311) are connected to each other. 3) fixed connection; the mounting rod (311) is fixedly connected with a blocking block 1 (313) for blocking the air outlet 1 (303), and the blocking block 1 (313) is slidably connected to the hollow portion (301), and the blocking block 1 (313) is located above the air outlet 1 (303); the mounting rod (311) is fixedly connected with a blocking block 2 (314) for blocking the air outlet 2 (304), and the blocking block 2 (314) is in contact with the air outlet 2 (304).

9. The multifunctional food sampler for food safety detection according to claim 8, characterized in that: The second air outlet hole (304) is in a truncated cone shape, and the second blocking block (314) matches the shape of the second air outlet hole (304).

10. The multifunctional food sampler for food safety detection according to claim 9, characterized in that: The air outlet hole 1 (303) is provided with a filter layer.

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