A sampler for detecting liquid food that can be sealed and stored

Abstract

The present invention relates to the technical field of samplers, and discloses a sampler for liquid food detection that can be sealed and stored, comprising a sleeve, a push rod is slidably connected inside the sleeve, a circular plate is connected to the bottom of the push rod, a hook block is connected to the bottom of the circular plate, both sides of the lower end of the sleeve are connected to end plates, and a sampling tube is slidably connected to the bottom of the sleeve. When using the sampler for liquid food detection that can be sealed and stored, the insertion rod is aligned with the slot, and then the sampling tube is pushed to insert the insertion rod into the slot, and then the hook block is staggered with the connecting block, and the circular plate is pushed toward the direction of the piston by the push rod until the hook block and the piston are against each other, and then the push rod is rotated so that the hook block is inside the connecting block, and then the push rod is pulled to hook the hook block on the piston, and then the sample of liquid food can be normally extracted, and when the sampling tube is disassembled, the operation can be reversed, and the operation process is simple and convenient, and it is easy to improve the sampling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of samplers, in particular to a sealable storage sampler for liquid food detection. Background Art

[0002] Food inspection refers to a discipline that studies and evaluates food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry, and biochemistry. The content of food inspection includes sensory inspection of food, inspection of nutrients, additives, and harmful substances in food, etc. During food inspection, liquid food will be sampled and inspected through a liquid sampler (the principle of the existing liquid sampler is similar to that of a syringe). When there are different types of liquid foods to be sampled, since different types of liquid food samples cannot be mixed, the liquid sampler needs to be cleaned or replaced several times during the sampling process to avoid contamination of the liquid food sample. When sampling multiple liquid foods, cleaning or replacing the liquid sampler can avoid contamination of the sample, but it will take more time, which is not conducive to improving the efficiency of sampling and testing of liquid foods.

[0003] As in the prior art, the patent with the patent authorization announcement number CN112903355B discloses a sampler for liquid food detection that can be sealed and stored, including a mounting seat, a vacuum pump and a sampling tube, a sleeve is sleeved at the middle position inside the mounting seat, a movable rod is sleeved at the middle position of the top of the vacuum pump, and a piston that cooperates with the vacuum pump is provided at the bottom of the movable rod. This sampler for liquid food detection that can be sealed and stored can lower the sampling tube and the tube head to extract liquid when sampling is required through the mutual cooperation of the lifting and adjusting components, and after the sampling is completed, the device can store multiple sampling tubes through the placement space of the storage tank, thereby improving the convenience of the device's one-time sampling work, and under the lifting and adjusting of the sampling tube, it can be put into the sleeve again to form a sealed protection, and the sampling tube placed in the storage tank in advance is fitted and protected by the sealing protection component to prevent external factors from interfering with the sampling tube, greatly enhancing the sealing performance and subsequent detection accuracy of the device.

[0004] Although the sampler in the above patent can replace the sampling tube, and after the sampling is completed, the device can store multiple sampling tubes through the placement space of the storage tank, thereby improving the convenience of the device's one-time sampling work, but the top and bottom of the sampling tube of the existing liquid sampler lack a sealing structure. This results in that when there is a sample of liquid food inside the sampling tube, once the sampling tube is rotated and removed, the top of the sampling tube will lose the vacuum environment, and the sample in the sampling tube will easily flow out from the tube head at the bottom of the sampling tube, resulting in the need for re-sampling, which will not only cause waste of samples, but also affect the sampling efficiency. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a sampler for liquid food detection that can be sealed and stored to solve the problems raised in the background art, enabling the sampling tube to be replaced and used relatively simply, which is convenient for improving the sampling efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: A sampler for liquid food detection that can be sealed and stored, including a sleeve. A push rod is slidably connected inside the sleeve. The bottom of the push rod is connected to a round plate, and the bottom of the round plate is connected to a hook block. Both sides of the lower end of the sleeve are connected to end plates. A sampling tube is slidably connected to the bottom of the sleeve. The top of the sampling tube is connected to an insertion rod. A slot is opened on one side of the end plate close to the insertion rod, and the insertion rod matches the slot. A piston is slidably connected inside the sampling tube. The top of the piston is connected to a connection block that matches the hook block. A storage box is connected to one side of the sleeve, and a box cover is slidably connected to the top of the storage box.

[0007] Further, both sides of the inner wall of the sampling tube are connected with limit blocks, and limit grooves matching the limit blocks are opened on both sides of the piston.

[0008] Further, an anti - detachment ring is threadedly connected to the upper end of the inner side of the sampling tube, and a gripping groove is opened on the inner side of the anti - detachment ring.

[0009] Further, both sides of the sleeve are connected with clamping plates. A collar is slidably connected to the outside of the sleeve. A clamping groove matching the clamping plates is opened on the inner side of the collar. Both sides of the collar are connected with connecting plates, and a limit ring is connected to the lower end of the connecting plate. The limit ring matches the sampling tube.

[0010] Further, a wiping block is threadedly connected to the inner side of the limit ring, and a gripping ring is connected to the outer wall of the upper end of the wiping block.

[0011] Further, a connecting belt is connected to the upper end of the outside of the sampling tube, and an elastic sealing cover is connected to the end of the connecting belt away from the sampling tube.

[0012] Further, a cavity is opened at the upper end of the outer wall of the sleeve. A positioning block is slidably connected to one end of the cavity close to the collar. One side of the positioning block close to the cavity is connected with an elastic member, and the other end of the elastic member is connected to the inner wall of the cavity. A positioning hole is opened through the outer wall of the collar, and the positioning hole matches the positioning block.

[0013] Further, a positioning ring is connected to the lower end of the inner side of the sleeve, and the positioning ring matches the push rod. A push block is connected to the top of the push rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When using the sampler for sealed storage in the detection of this liquid food, align the insertion rod with the slot, then push the sampling tube so that the insertion rod is inserted into the slot. Then, stagger the hook block and the connection block, and push the round plate towards the piston through the push rod until the hook block abuts against the piston. Then, rotate the push rod so that the hook block is inside the connection block. Subsequently, pull the push rod to hook the hook block on the piston, and then the sample of the liquid food can be normally extracted. When disassembling the sampling tube, just operate in the reverse direction. The operation process is simple and convenient, which is easy to improve the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole invention;

[0017] Figure 2 is a schematic structural diagram of another state of the whole invention;

[0018] Figure 3 is a partial cross-sectional view of the whole invention;

[0019] Figure 4 For the present invention Figure 3 is a partial enlarged structural diagram at A in;

[0020] Figure 5 is a partial cross-sectional view of the sampling tube of the present invention;

[0021] Figure 6 is a schematic structural diagram of the piston of the present invention;

[0022] Figure 7 is a schematic connection structure diagram of the collar and the limit ring of the present invention;

[0023] Figure 8 For the present invention Figure 7 is a partial enlarged view at B in;

[0024] Figure 9 is a schematic structural diagram of the push rod of the present invention.

[0025] In the figure: 1, sleeve; 101, positioning ring; 2, storage box; 3, box cover; 4, push rod; 5, push block; 6, round plate; 7, hook block; 8, sampling tube; 9, limit block; 10, piston; 11, limit groove; 12, connection block; 13, anti - detachment ring; 14, insertion rod; 15, end plate; 16, slot; 17, clamping plate; 18, collar; 19, clamping groove; 20, connecting plate; 21, limit ring; 22, wiping block; 23, gripping ring; 24, cavity; 25, elastic member; 26, positioning block; 27, connecting band; 28, elastic sealing cover. DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Please refer to Figures 1-9 , a sampler for detecting liquid food that can be sealed and stored, including a sleeve 1. A push rod 4 is slidably connected inside the sleeve 1. A circular plate 6 is connected to the bottom of the push rod 4. A hook block 7 is connected to the bottom of the circular plate 6. End plates 15 are connected to both sides of the lower end of the sleeve 1. A sampling tube 8 is slidably connected to the bottom of the sleeve 1. A plug rod 14 is connected to the top of the sampling tube 8. A slot 16 is opened on one side of the end plate 15 close to the plug rod 14. The plug rod 14 matches the slot 16. A piston 10 is slidably connected inside the sampling tube 8. A connecting block 12 that matches the hook block 7 is connected to the top of the piston 10. A storage box 2 is connected to one side of the sleeve 1. A box cover 3 is slidably connected to the top of the storage box 2.

[0028] In the sampler for detecting liquid food that can be sealed and stored in the present invention, when installing the sampling tube 8, first align the plug rod 14 with the slot 16, then push the sampling tube 8 so that the plug rod 14 is inserted into the slot 16. Then stagger the hook block 7 and the connecting block 12, and push the circular plate 6 towards the piston 10 through the push rod 4 until the hook block 7 abuts against the piston 10. Then rotate the push rod 4 so that the hook block 7 is inside the connecting block 12. Then pull the push rod 4, and the hook block 7 can be hooked on the connecting block 12 at the top of the piston 10. Then the sample of the liquid food can be normally extracted. When disassembling the sampling tube 8, only need to push the push rod 4 towards the piston 10 so that the hook block 7 abuts against the piston 10. Then rotate the push rod 4 to stagger the hook block 7 and the connecting block 12. Then pull the push rod 4 to make the circular plate 6 away from the piston 10. Finally, pull the sampling tube 8 away from the sleeve 1. The taken-out sampling tube 8 can be placed in the storage box 2 for storage, and the box cover 3 is slid to be hermetically sealed. The storage box 2 and the box cover 3 can be fixed by magnetic attraction, that is, a magnetic sheet is connected to the top of the storage box 2, and the box cover 3 is made of iron material. The installation and disassembly process of the sampling tube 8 is simple and convenient, easy to operate, and convenient to improve the sampling efficiency. The sampling tube 8 is made of transparent material, which is convenient for the operator to observe the positions of the hook block 7 and the connecting block 12. At the same time, when the sampling tube 8 takes a sample and is removed from the sleeve 1, since there is a piston 10 at the upper end inside the sampling tube 8, the pressure inside the sampling tube 8 is small, and the liquid will not flow out of the sampling tube 8 under the action of the external atmospheric pressure. In addition, the structure of the sleeve 1 in the present invention is similar to the structure of a sampler for detecting liquid food that can be sealed and stored disclosed in the patent with the patent authorization announcement number CN112903355B, so no more elaboration will be made here.

[0029] As a preferred technical solution of the present invention, limiting blocks 9 are connected to both sides of the inner wall of the sampling tube 8, and limiting grooves 11 matching the limiting blocks 9 are formed on both sides of the piston 10. The limiting grooves 11 on both sides of the piston 10 are stuck on the limiting blocks 9, thereby restricting the piston 10 to prevent the hooking block 7 from driving the piston 10 to rotate together when the push rod 4 rotates, and further causing the connecting block 12 on the piston 10 to be difficult to disengage from the hooking block 7.

[0030] As a preferred technical solution of the present invention, an anti - detachment ring 13 is threadedly connected to the upper end inside the sampling tube 8, and a gripping groove is formed inside the anti - detachment ring 13. The anti - detachment ring 13 restricts the piston 10 inside the sampling tube 8 to prevent the piston 10 from detaching from the sampling tube 8. At the same time, the gripping groove is formed inside the anti - detachment ring 13 so that it is easier to grip the anti - detachment ring 13 when it rotates.

[0031] As a preferred technical solution of the present invention, clamping plates 17 are connected to both sides of the sleeve 1. A collar 18 is slidably connected to the outside of the sleeve 1. A clamping groove 19 matching the clamping plates 17 is formed inside the collar 18. Connecting plates 20 are connected to both sides of the collar 18, and a limiting ring 21 is connected to the lower end of the connecting plate 20. The limiting ring 21 matches the sampling tube 8. After connecting the sampling tube 8 to the sleeve 1, pull the collar 18 and the limiting ring 21 upward so that the limiting ring 21 is sleeved outside the sampling tube 8, thereby restricting the sampling tube 8 to prevent the sampling tube 8 from separating from the sleeve 1. At the same time, the clamping groove 19 inside the collar 18 will cooperate with the clamping plates 17 to prevent the collar 18 from rotating, resulting in a decrease in the limiting effect of the limiting ring 21. The clamping plates 17 play a role in improving stability.

[0032] As a preferred technical solution of the present invention, a wiping block 22 is threadedly connected to the inside of the limiting ring 21, and a gripping ring 23 is connected to the outer wall of the upper end of the wiping block 22. When installing the wiping block 22, only need to thread - connect the wiping block 22 with the limiting ring 21. When disassembling, only need to rotate the wiping block 22 through the gripping ring 23 to separate the wiping block 22 from the limiting ring 21. The installation and disassembly are relatively simple and convenient. When removing the sampling tube 8, first slide the limiting ring 21 downward until the limiting ring 21 is disengaged from the sampling tube 8, and then the sampling tube 8 can be removed. During the process of the limiting ring 21 sliding downward, the wiping block 22 will wipe the outer wall of the sampling tube 8 to prevent liquid from adhering to the outer wall of the sampling tube 8 and then entering the storage box 2, resulting in difficult cleaning.

[0033] As a preferred technical solution of the present invention, a connecting band 27 is connected to the upper end outside the sampling tube 8, and one end of the connecting band 27 away from the sampling tube 8 is connected to an elastic sealing cover 28. Before the sampling tube 8 is placed inside the storage box 2, the elastic sealing cover 28 is sleeved on the end of the sampling tube 8 away from the sleeve 1, so as to prevent the liquid from flowing out of the sampling tube 8 due to shaking or other reasons. Since the elastic sealing cover 28 has a certain elasticity, it can be fixed to the end of the sampling tube 8 only by pressing, and the fixing method is simple and easy to operate.

[0034] As a preferred technical solution of the present invention, a cavity 24 is provided at the upper end of the outer wall of the sleeve 1. A positioning block 26 is slidably connected to one end of the cavity 24 close to the collar 18. One side of the positioning block 26 close to the cavity 24 is connected to an elastic member 25, and the other end of the elastic member 25 is connected to the inner wall of the cavity 24. A positioning hole is provided through the outer wall of the collar 18, and the positioning hole matches the positioning block 26. When the collar 18 is pulled upward so that the limiting ring 21 is sleeved outside the sampling tube 8, the collar 18 will squeeze the positioning block 26, causing the positioning block 26 to be pressed back into the cavity 24. After the collar 18 is pulled to the highest position, the positioning hole on the collar 18 will be aligned with the positioning block 26, and the positioning block 26 will pop out under the action of the elastic member 25 and thus be stuck in the positioning hole. When it is necessary to push the collar 18 and the limiting ring 21 downward, the operator only needs to press the positioning block 26 back into the cavity 24 with a finger, and then the collar 18 and the limiting ring 21 can be pushed downward.

[0035] As a preferred technical solution of the present invention, a positioning ring 101 is connected to the lower end inside the sleeve 1. The positioning ring 101 matches the push rod 4, and a push block 5 is connected to the top of the push rod 4. The push rod 4 is restricted by the positioning ring 101 to prevent the push rod 4 from shaking during the process of being pushed or pulled, which may cause the hook block 7 to collide with the connecting block 12 and damage the hook block 7. At the same time, it is more labor-saving and convenient to push the push rod 4 through the push block 5.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealable storage sampler for liquid food testing, comprising a sleeve (1), characterized in that: The sleeve (1) is slidably connected to a push rod (4) inside, the bottom of the push rod (4) is connected to a circular plate (6), the bottom of the circular plate (6) is connected to a hook block (7), both sides of the lower end of the sleeve (1) are connected to end plates (15), the bottom of the sleeve (1) is slidably connected to a sampling tube (8), the top of the sampling tube (8) is connected to an insertion rod (14), a slot (16) is provided on a side of the end plate (15) close to the insertion rod (14), the insertion rod (14) matches the slot (16), the inside of the sampling tube (8) is slidably connected to a piston (10), the top of the piston (10) is connected to a connection block (12) matching the hook block (7), one side of the sleeve (1) is connected to a storage box (2), and the top of the storage box (2) is slidably connected to a box cover (3); Both sides of the inner wall of the sampling tube (8) are connected to limit blocks (9), and both sides of the piston (10) are provided with limit grooves (11) matching the limit blocks (9); The upper end of the inner side of the sampling tube (8) is threadedly connected with an anti-slip ring (13), and the inner side of the anti-slip ring (13) is provided with a gripping groove; The upper end of the outside of the sampling tube (8) is connected to a connecting belt (27), and the end of the connecting belt (27) away from the sampling tube (8) is connected to an elastic sealing cover (28); Both sides of the sleeve (1) are connected to clamping plates (17), the outside of the sleeve (1) is slidably connected to a collar (18), the inner side of the collar (18) is provided with a clamping groove (19) matching the clamping plate (17), both sides of the collar (18) are connected to connecting plates (20), the lower end of the connecting plate (20) is connected to a limiting ring (21), and the limiting ring (21) matches the sampling tube (8).

2. A sealable storage sampler for liquid food detection according to claim 1, characterized in that: The inner side of the limiting ring (21) is threadedly connected to a wiping block (22), and the outer wall of the upper end of the wiping block (22) is connected to a gripping ring (23).

3. A sealable storage sampler for liquid food detection according to claim 1, characterized in that: A cavity (24) is formed at the upper end of the outer wall of the sleeve (1); a positioning block (26) is slidably connected to one end of the cavity (24) close to the collar (18); an elastic member (25) is connected to one side of the positioning block (26) close to the cavity (24); the other end of the elastic member (25) is connected to the inner wall of the cavity (24); a positioning hole is formed on the outer wall of the collar (18) and is matched with the positioning block (26).

4. A sealable storage sampler for liquid food detection according to claim 1, characterized in that: A positioning ring (101) is connected to the lower end of the inner side of the sleeve (1), the positioning ring (101) matches the push rod (4), and a push block (5) is connected to the top of the push rod (4).

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