Food microorganism colony sampler and use method thereof

Abstract

The invention relates to the technical field of samplers, and discloses a food microorganism colony sampler and a use method thereof.The food microorganism colony sampler comprises a sampling barrel, a piston block is slidably connected to the inner wall of the sampling barrel, a limiting ring is fixedly connected to the inner wall of the sampling barrel, and a communicating pipe is connected to the inner wall of the limiting ring in a penetrating mode; an operator presses the stretching assembly to enable the first spring ring and the piston block to descend, exhaust air and loosen the stretching assembly, the ascending speed of the first spring ring is slowed down through the slowing-down assembly, then the ascending speed of the piston block is slowed down again through the blocking assembly and the extrusion assembly, and the piston block slowly ascends by doubly slowing down the release speed of resilience force of the first spring ring. Honey is stably sucked into the suction head and enters the sampling barrel through the suction head until the piston block makes contact with the threaded rod, honey sampling is completed, the situation that due to the fact that the initial resilience force of the first spring ring is high, the piston block rapidly ascends to stably suck the honey is effectively prevented, and therefore the accuracy of the sampling amount is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sampler equipment, in particular to a food microbial colony sampler and a use method thereof. Background Art

[0002] At present, my country's food inspection industry is developing rapidly, and food microbial colony detection is the core link in ensuring food safety. There are also many types of sampling equipment used for food inspection. When taking microbial samples for food and beverage inspection in the laboratory, experimenters need to use inspection samplers. The common way of use is that the user usually squeezes the piston down to expel the air, and then relies on the rebound force of the spring to reset the piston and suck the liquid into the suction head.

[0003] Among them, when sampling food microbial colonies with high viscosity, such as honey and jam, due to its high viscosity, in order to generate sufficient suction, it is often necessary to press the piston to move a large range to fully expel the air, but the squeezing of the spring is also large. When the piston rises, the large elasticity of the spring may cause the piston to rise too quickly, and the negative pressure in the piston chamber will increase suddenly. However, due to the high viscosity and poor fluidity of the liquid, it may be difficult to fill the suction tip in time, which may cause the piston to inhale air and affect the accuracy of the sampling amount. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a food microbial colony sampler, comprising a sampling cylinder, wherein a piston block is slidably connected to the inner wall of the sampling cylinder;

[0005] The sampling mechanism has a quantitative component fixedly installed on the bottom of the sampling mechanism, and a stretching component is installed on the inner wall of the sampling mechanism. The quantitative component is used to control the amount of honey sucked;

[0006] A suction mechanism, which is installed on the inner wall of the sampling mechanism and is used to suck honey; and

[0007] A blocking mechanism is located at the inner wall of the suction mechanism and is used to slow down the return speed of the suction mechanism;

[0008] A limiting ring is fixedly connected to the inner wall of the sampling tube, a connecting pipe is connected through the inner wall of the limiting ring, and a blocking block is slidably connected to the inner wall of the connecting pipe;

[0009] Among them, by inserting the sampling mechanism into the honey, pressing the stretching component to discharge the gas, and then releasing the stretching component, the honey is sucked into the sampling mechanism through the suction mechanism, and the blocking mechanism is used to slow down the return speed of the suction mechanism, so that the piston block rises slowly, and the honey is sucked into the suction head steadily, and then enters the sampling tube through the suction head to complete the sampling of the honey, effectively preventing the strong initial rebound force of the spring, which causes the piston block to rise quickly and make it difficult to suck the honey steadily, thereby ensuring the accuracy of the sampling amount.

[0010] Preferably, the sampling mechanism comprises:

[0011] The quantitative component is fixedly arranged at the bottom of the sampling tube and is used to control the single suction amount of honey;

[0012] A stretching assembly is slidably arranged on the inner wall of the sampling cylinder and is used to push the suction mechanism down;

[0013] The operator puts the suction head into the bottom of the sampling tube, presses the stretching component to lower the suction mechanism to discharge the gas, and then slowly releases the stretching component to make the suction mechanism rise to absorb the honey.

[0014] Preferably, the suction mechanism comprises:

[0015] A retraction assembly is fixedly arranged on the top of the limit ring and is used to control the movement of the piston block;

[0016] A deceleration component is fixedly arranged on the inner wall of the sampling tube and is used to slow down the rising speed of the retraction component;

[0017] Among them, pressing the stretching component will cause the retraction component to descend, allowing the piston block to descend and discharge the gas, and then slowly release the stretching component, and the retraction component will slowly rise through the deceleration component, allowing the piston block to slowly rise, so that the piston block can smoothly absorb honey into the sampling tube.

[0018] Preferably, the blocking mechanism comprises:

[0019] A blocking component is slidably disposed on the inner wall of the connecting pipe to block the flow of gas;

[0020] An extrusion assembly is slidably disposed on the inner wall of the limiting ring to form a negative pressure;

[0021] Among them, when the retraction component descends, the blocking component will also descend. As the piston block continues to descend, the gas in the retraction component will be reduced, and the extrusion component will form a negative pressure in the retraction component, generating a force opposite to the rise of the spring ring, and slowing down the rising speed of the piston block again, effectively preventing the initial rebound force of the spring ring from being strong, causing the piston block to rise quickly and be difficult to absorb honey smoothly, thereby ensuring the accuracy of the sampling amount.

[0022] Preferably, the quantitative assembly includes a threaded rod slidably connected to the inner wall of the limiting ring;

[0023] The stretching assembly includes a push rod slidably connected to the inner wall of the sampling cylinder, and a threaded ring is rotatably connected to the inner wall of the sampling cylinder;

[0024] The inner wall of the threaded ring is threadedly connected to the outer wall of the threaded rod, and the top of the piston block is fixedly connected to the bottom of the push rod;

[0025] Among them, the operator holds the sampling cylinder with his hand, puts the suction head on the bottom of the sampling cylinder, presses the push rod to move the piston block, so that the bottom of the piston block is flush with the scale line of the required sampling amount, and then rotates the threaded ring to lower the threaded rod and contact the top of the piston block to limit the piston block. Then continue to press the push rod to move the piston block to the bottom inner wall of the sampling cylinder to fully discharge the gas in the sampling cylinder.

[0026] Preferably, the retraction assembly includes a fixing sleeve fixedly connected to the top of the limiting ring, the inner wall of the fixing sleeve is slidably connected to a spring ring 1, and the inner wall of the spring ring 1 is fixedly connected to the outer wall of the push rod;

[0027] The inner wall of the fixed sleeve is slidably connected with a spring ring 2, and the outer wall of the communicating tube is connected to the inner wall of the fixed sleeve;

[0028] Among them, when the push rod descends, the spring ring will descend. During the descending process of the spring ring, the gas in the fixed sleeve will be squeezed into the connecting pipe, and then into the top of the piston block through the connecting pipe, so that the gas in the fixed sleeve is reduced.

[0029] Preferably, the mitigation component comprises a hydraulic cylinder fixedly connected to the inner wall of the sampling cylinder, an extrusion ring is slidably connected to the inner wall of the hydraulic cylinder, and hydraulic oil is provided on the inner wall of the hydraulic cylinder;

[0030] The bottom of the hydraulic cylinder is connected to two fixed blocks, the bottoms of the two fixed blocks are connected to the tops of the two hydraulic cylinders, and the inner walls of the two fixed blocks are provided with special-shaped grooves;

[0031] Among them, during the descending process of spring ring 1, the hydraulic oil in the hydraulic cylinder will enter the top of spring ring 1 through the special-shaped groove, and the volume of oil in the hydraulic cylinder will decrease. In order to maintain volume balance, the extrusion ring will move to the side where the oil is reduced, causing the extrusion ring to descend, and then the suction head will be inserted into the honey, and then the extrusion of the push rod will be released to make the piston block and spring ring 1 rise. The rising spring ring 1 squeezes the hydraulic oil on its top and enters the hydraulic cylinder through the special-shaped groove. Since the special-shaped groove has multiple continuous reverse bends, these curved channels will increase the friction resistance of the hydraulic oil when the hydraulic oil flows, thereby slowing down the reflux speed of the hydraulic oil and slowing down the rising speed of spring ring 1.

[0032] Preferably, the blocking assembly includes a connecting rod 1 fixedly connected to the top of the blocking block, the top of the connecting rod 1 is fixedly connected to the bottom of the extrusion ring, a spring ball rod is slidably connected to the inner wall of the blocking block, and an air hole is opened on the inner wall of the blocking block;

[0033] Among them, when the extrusion ring descends, the connecting rod will descend, causing the blocking block to descend. As the blocking block continues to move, the blocking block will block the connecting pipe. As the piston block continues to move, the space at the top of the piston block increases and generates negative pressure, which attracts the spring ball rod to descend, causing gaps in the blocking block to leak out, allowing the gas in the fixed sleeve to pass through the air holes and enter the top of the piston block. As the piston block continues to move, the gas in the fixed sleeve will continue to decrease.

[0034] Preferably, the extrusion assembly includes a second connecting rod slidably connected to the inner wall of the hydraulic cylinder, the top of the second connecting rod is fixedly connected to the bottom of the extrusion ring, the bottom of the second spring ring is fixedly connected to a U-shaped rod, and the outer wall of the U-shaped rod is slidably connected to the inner wall of the limiting ring;

[0035] Among them, when the extrusion ring descends, it will also drive the connecting rod 2 to move, so that the connecting rod 2 pushes the U-shaped rod to descend. At this time, since there is less gas in the fixed sleeve, the U-shaped rod drives the spring ring 2 to descend, which will cause negative pressure in the fixed sleeve. When the spring ring 1 rises, the bottom of the spring ring 1 has negative pressure, and the negative pressure will form a force acting on the spring ring 1. This force is opposite to the release direction of the rebound force of the spring ring 1, which will slow down the rising speed of the spring ring 1 again. By doubly slowing down the release speed of the rebound force of the spring ring 1, the piston block rises slowly and steadily absorbs honey into the suction head, effectively preventing the initial rebound force of the spring ring 1 from being strong, which makes it difficult for the piston block to rise quickly and absorb honey steadily, thereby ensuring the accuracy of the sampling amount.

[0036] A method for using a food microbial colony sampler comprises the following steps:

[0037] S1: Volume setting: The operator holds the sampling cylinder with his hands, puts the suction head on the bottom of the sampling cylinder, presses the push rod to make the piston block and spring ring drop down, so that the bottom of the piston block is flush with the scale line of the required sampling volume, and then rotates the threaded ring to make the threaded rod drop down and contact with the top of the piston block, thus limiting the piston block and controlling the suction volume;

[0038] S2: Colony sampling: Insert the suction tip into the honey, then release the squeeze on the push rod to make the piston block and the spring ring rise, let the piston block rise slowly, and steadily suck the honey into the suction tip, and then into the sampling tube through the suction tip to complete the sampling.

[0039] The present invention has the following beneficial effects:

[0040] (1) When the present invention is used, the operator presses the stretching assembly to make the spring ring 1 and the piston block descend, exhausts the air, and allows the spring ring 1 to accumulate rebound force, and controls the suction amount of the sampling tube through the quantitative assembly, and then releases the stretching assembly, slows down the rising speed of the spring ring 1 through the slowing assembly, and then forms a negative pressure through the blocking assembly and the extrusion assembly, generating a force opposite to the rising of the spring ring 1, and slowing down the rising speed of the piston block again. By doubly slowing down the release speed of the rebound force of the spring ring 1, the piston block rises slowly, steadily sucks honey into the suction head, and enters the sampling tube through the suction head, until the piston block contacts the threaded rod to complete the sampling of honey, effectively preventing the initial rebound force of the spring ring 1 from being too strong, which causes the piston block to rise quickly and be difficult to steadily suck honey, thereby ensuring the accuracy of the sampling amount.

[0041] (2) In the present invention, when the spring ring 1 rises, the hydraulic oil will be squeezed into the hydraulic cylinder through the special-shaped groove. The hydraulic oil will push the extrusion ring to rise, driving the connecting rod 1 and the blocking block to rise. As the blocking block continues to move, the gas obstruction will be eliminated, allowing the gas on the top of the piston block to enter the fixed sleeve through the connecting pipe, breaking the negative pressure in the fixed sleeve, reducing the blocking force on the spring ring 1, and effectively preventing the elastic potential energy of the spring ring 1 from being weakened as the rebound force is released, and the negative pressure limits the return distance of the spring ring 1, affecting the sampling tube from absorbing a large volume of honey.

[0042] (3) When the extrusion ring of the present invention rises, it will also drive the connecting rod 2 to rise. At this time, the connecting rod 2 is separated from the U-shaped rod, and the rebound force of the spring ring 2 will be released, causing the spring ring 2 to rise, so that the distance between the spring ring 2 and the spring ring 1 changes less, avoiding the distance between the spring ring 1 and the spring ring 2 being too large, resulting in the continuous increase of the negative pressure in the fixed sleeve, and effectively preventing the formation of high negative pressure in the fixed sleeve, which is greater than the rebound force of the spring ring 1, affecting the return of the spring ring 1, and affecting the piston block to absorb honey. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 This is a schematic cross-sectional view of the sampling tube of the present invention;

[0046] Figure 3 This is a schematic cross-sectional view of the fixing sleeve of the present invention;

[0047] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram;

[0048] Figure 5 For the present invention Figure 3 A magnified schematic diagram of B in the middle;

[0049] Figure 6 For the present invention Figure 3 A magnified schematic diagram of middle C;

[0050] Figure 7 It is a schematic cross-sectional view of the sampling tube of the present invention from the right side;

[0051] Figure 8 This is a schematic diagram of the structure of the sampling tube portion of the present invention;

[0052] Figure 9 Schematic diagram of the workflow of the present invention.

[0053] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0054] In the figure: 1. Sampling mechanism; 11. Quantitative assembly; 12. Stretching assembly; 111. Sampling cylinder; 112. Piston block; 113. Threaded rod; 121. Push rod; 122. Threaded ring; 123. Limiting ring; 2. Suction mechanism; 21. Retraction assembly; 22. Slowing assembly; 211. Fixing sleeve; 212. Spring ring 1; 213. Spring ring 2; 214. Connecting pipe; 221. Hydraulic cylinder; 222. Extrusion ring; 223. Fixing block; 224. Special-shaped groove; 3. Blocking mechanism; 31. Blocking assembly; 32. Extrusion assembly; 311. Connecting rod 1; 312. Blocking block; 313. Spring ball rod; 314. Air hole; 321. Connecting rod 2; 322. U-shaped rod. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0056] For example 1, please refer to Figure 1 - Figure 3 The present invention is a food microorganism colony sampler, comprising a sampling cylinder 111, wherein a piston block 112 is slidably connected to the inner wall of the sampling cylinder 111;

[0057] Sampling mechanism 1, a quantitative component 11 is fixedly installed at the bottom of the sampling mechanism 1, and a stretching component 12 is installed on the inner wall of the sampling mechanism 1. The quantitative component 11 is used to control the amount of honey sucked;

[0058] A suction mechanism 2, which is installed on the inner wall of the sampling mechanism 1 and is used to suck honey; and

[0059] The blocking mechanism 3 is located at the inner wall of the suction mechanism 2 and is used to slow down the return speed of the suction mechanism 2;

[0060] The inner wall of the sampling tube 111 is fixedly connected to a limit ring 123, the inner wall of the limit ring 123 is connected through a connecting pipe 214, and the inner wall of the connecting pipe 214 is slidably connected to a blocking block 312;

[0061] Among them, by inserting the sampling mechanism 1 into the honey, pressing the stretching component 12 to discharge the gas, and then releasing the stretching component 12, the honey is sucked into the sampling mechanism 1 through the suction mechanism 2, and the blocking mechanism 3 is used to slow down the return speed of the suction mechanism 2, so that the piston block 112 rises slowly, and the honey is sucked into the suction head steadily, and then enters the sampling cylinder 111 through the suction head to complete the sampling of the honey, effectively preventing the initial rebound force of the spring from being too strong, which causes the piston block 112 to rise quickly and be difficult to suck honey steadily, thereby ensuring the accuracy of the sampling amount.

[0062] The sampling mechanism 1 comprises:

[0063] The quantitative component 11 is fixedly arranged at the bottom of the sampling tube 111 and is used to control the single suction amount of honey;

[0064] The stretching assembly 12 is slidably disposed on the inner wall of the sampling cylinder 111 and is used to push the suction mechanism 2 downward;

[0065] The operator inserts the suction head into the bottom of the sampling tube 111, presses the stretching component 12 to lower the suction mechanism 2 to discharge the gas, and then slowly releases the stretching component 12 to raise the suction mechanism 2 to absorb the honey.

[0066] The suction mechanism 2 includes:

[0067] The retraction assembly 21 is fixedly arranged on the top of the limiting ring 123 and is used to control the movement of the piston block 112;

[0068] The deceleration component 22 is fixedly arranged on the inner wall of the sampling tube 111 and is used to slow down the rising speed of the retraction component 21;

[0069] Among them, pressing the stretching component 12 will cause the retraction component 21 to descend, allowing the piston block 112 to descend and discharge the gas, and then slowly release the stretching component 12, and the retraction component 21 will slowly rise through the deceleration component 22, allowing the piston block 112 to slowly rise, so that the piston block 112 can smoothly absorb honey into the sampling tube 111.

[0070] The blocking mechanism 3 comprises:

[0071] The blocking component 31 is slidably disposed on the inner wall of the connecting pipe 214 to block the flow of gas;

[0072] An extrusion assembly 32 is slidably disposed on the inner wall of the limiting ring 123 to form a negative pressure;

[0073] Among them, when the retraction component 21 descends, the blocking component 31 will be lowered. As the piston block 112 continues to descend, the gas in the retraction component 21 will be reduced, and the extrusion component 32 will form a negative pressure in the retraction component 21, generating a force opposite to the rise of the spring ring 212, and slowing down the rising speed of the piston block 112 again, effectively preventing the spring ring from having a strong initial rebound force, which will cause the piston block 112 to rise quickly and be difficult to absorb honey smoothly, thereby ensuring the accuracy of the sampling amount.

[0074] For example 2, please refer to Figure 1 - Figure 9 The present invention is a food microbial colony sampler. Based on the first embodiment, the quantitative component 11 includes a threaded rod 113 slidably connected to the inner wall of the limiting ring 123;

[0075] The stretching assembly 12 includes a push rod 121 slidably connected to the inner wall of the sampling tube 111 , and a threaded ring 122 is rotatably connected to the inner wall of the sampling tube 111 ;

[0076] The inner wall of the threaded ring 122 is threadedly connected to the outer wall of the threaded rod 113, and the top of the piston block 112 is fixedly connected to the bottom of the push rod 121;

[0077] The operator holds the sampling cylinder 111 with his hands, puts the suction head on the bottom of the sampling cylinder 111, and pushes the piston block 112 by pressing the push rod 121, so that the bottom of the piston block 112 is flush with the scale line of the required sampling amount, such as: Figure 8 As shown in G, the threaded ring 122 is then rotated to cause the threaded rod 113 to descend and contact the top of the piston block 112, thereby limiting the position of the piston block 112. The push rod 121 is then continuously pressed to move the piston block 112 to the bottom inner wall of the sampling cylinder 111, thereby fully discharging the gas in the sampling cylinder 111.

[0078] The retraction assembly 21 includes a fixing sleeve 211 fixedly connected to the top of the limiting ring 123. The inner wall of the fixing sleeve 211 is slidably connected to a spring ring 1 212. The inner wall of the spring ring 1 212 is fixedly connected to the outer wall of the push rod 121.

[0079] The inner wall of the fixed sleeve 211 is slidably connected with a spring ring 213, and the outer wall of the connecting pipe 214 is connected to the inner wall of the fixed sleeve 211;

[0080] Among them, when the push rod 121 descends, the spring ring 1 212 will descend. During the descending process of the spring ring 1 212, the gas in the fixed sleeve 211 will be squeezed into the connecting pipe 214, and then enter the top of the piston block 112 through the connecting pipe 214, so that the gas in the fixed sleeve 211 is reduced.

[0081] The mitigation assembly 22 includes a hydraulic cylinder 221 fixedly connected to the inner wall of the sampling cylinder 111, an extrusion ring 222 is slidably connected to the inner wall of the hydraulic cylinder 221, and hydraulic oil is provided on the inner wall of the hydraulic cylinder 221;

[0082] The bottom of the hydraulic cylinder 221 is connected to two fixed blocks 223, and the bottoms of the two fixed blocks 223 are connected to the tops of the two hydraulic cylinders 221. The inner walls of the two fixed blocks 223 are provided with special-shaped grooves 224.

[0083] Among them, during the descending process of spring ring 1212, the hydraulic oil in the hydraulic cylinder 221 will enter the top of spring ring 1212 through the special-shaped groove 224, and the volume of oil in the hydraulic cylinder 221 will decrease. In order to maintain volume balance, the extrusion ring 222 will move to the side where the oil is reduced, causing the extrusion ring 222 to descend, and then the suction head will be inserted into the honey, and then the extrusion of the push rod 121 will be released, so that the piston block 112 and the spring ring 1212 will rise. The spring ring 121 rises and squeezes the hydraulic oil on its top, and enters the hydraulic cylinder 221 through the special-shaped groove 224. Since the special-shaped groove 224 has multiple continuous reverse bends, these curved channels will increase the friction resistance of the hydraulic oil when the hydraulic oil flows, thereby slowing down the reflux speed of the hydraulic oil and slowing down the rising speed of the spring ring 1212.

[0084] The blocking assembly 31 includes a connecting rod 311 fixedly connected to the top of the blocking block 312. The top of the connecting rod 311 is fixedly connected to the bottom of the extrusion ring 222. A spring ball rod 313 is slidably connected to the inner wall of the blocking block 312. The inner wall of the blocking block 312 is provided with an air hole 314.

[0085] Among them, when the extrusion ring 222 descends, the connecting rod 311 will descend, causing the blocking block 312 to descend. As the blocking block 312 continues to move, the blocking block 312 will block the connecting pipe 214. As the piston block 112 continues to move, the top space of the piston block 112 increases and generates negative pressure, which attracts the spring ball rod 313 to descend, causing a gap to leak out of the blocking block 312, allowing the gas in the fixed sleeve 211 to pass through the air hole 314 and enter the top of the piston block 112. As the piston block 112 continues to move, the gas in the fixed sleeve 211 will continue to decrease.

[0086] The extrusion assembly 32 includes a second connecting rod 321 slidably connected to the inner wall of the hydraulic cylinder 221. The top of the second connecting rod 321 is fixedly connected to the bottom of the extrusion ring 222. The bottom of the second spring ring 213 is fixedly connected to a U-shaped rod 322. The outer wall of the U-shaped rod 322 is slidably connected to the inner wall of the limit ring 123.

[0087] Among them, when the extrusion ring 222 descends, it will also drive the second connecting rod 321 to move, so that the second connecting rod 321 pushes the U-shaped rod 322 to descend. At this time, since there is less gas in the fixed sleeve 211, the U-shaped rod 322 drives the spring ring 213 to descend, which will generate negative pressure in the fixed sleeve 211. When the spring ring 1 212 rises, the bottom of the spring ring 1 212 has negative pressure, and the negative pressure will form a force acting on the spring ring 1 212. This force is opposite to the release direction of the rebound force of the spring ring 1 212, which will slow down the rising speed of the spring ring 1 212 again. By doubly slowing down the release speed of the rebound force of the spring ring 1 212, the piston block 112 rises slowly, and the honey is sucked into the suction head steadily, which effectively prevents the initial rebound force of the spring ring 1 212 from being strong, resulting in the rapid rise of the piston block 112 and the difficulty in sucking honey steadily, thereby ensuring the accuracy of the sampling amount.

[0088] There is no limit on the number of the above components, and relevant technicians in this field can freely set them according to actual needs, as long as the above components are installed in the corresponding component connection positions.

[0089] The method of using the sampler includes the following steps:

[0090] S1: Volume setting: The operator holds the sampling cylinder 111 with his hands, puts the suction head on the bottom of the sampling cylinder 111, and presses the push rod 121 to lower the piston block 112 and the spring ring 212, so that the bottom of the piston block 112 is flush with the scale line of the required sampling volume. Then, the threaded ring 122 is rotated to lower the threaded rod 113 and contact the top of the piston block 112, thereby limiting the position of the piston block 112 and controlling the suction volume;

[0091] S2: Colony sampling: Insert the suction head into the honey, then release the squeeze on the push rod 121 to make the piston block 112 and the spring ring 212 rise, let the piston block 112 rise slowly, and steadily suck the honey into the suction head, and then into the sampling tube 111 through the suction head to complete the sampling.

[0092] A specific application of this embodiment is as follows: when using the present invention, the operator holds the sampling cylinder 111 by hand, puts the suction head on the bottom of the sampling cylinder 111, and presses the push rod 121 to lower the piston block 112 and the spring ring 1 212, allowing the spring ring 1 212 to accumulate rebound force, so that the bottom of the piston block 112 is flush with the scale line of the required sampling amount, such as: Figure 8As shown in Figure G, the threaded ring 122 is then rotated to make the threaded rod 113 descend and contact the top of the piston block 112 to limit the piston block 112. The push rod 121 is then pressed continuously to move the piston block 112 to the bottom inner wall of the sampling cylinder 111 to fully discharge the gas in the sampling cylinder 111. During the descending process of the spring ring 1 212, the hydraulic oil in the hydraulic cylinder 221 will enter the top of the spring ring 1 212 through the special-shaped groove 224, and the volume of the oil in the hydraulic cylinder 221 will decrease. In order to maintain volume balance, the extrusion ring 222 will move to the side where the oil decreases, causing the extrusion ring 222 to descend. The descending of the spring ring 1 212 will also squeeze the gas in the fixed sleeve 211, thereby The gas flows into the connecting pipe 214 and then into the top of the piston block 112, thereby reducing the gas in the fixed sleeve 211. When the extrusion ring 222 descends, the connecting rod 311 descends, causing the blocking block 312 to descend. As the blocking block 312 continues to move, the blocking block 312 blocks the connecting pipe 214. As the piston block 112 continues to move, the space above the piston block 112 increases, generating negative pressure, which attracts the spring ball rod 313 to descend, causing a gap in the blocking block 312 to leak out, allowing the gas in the fixed sleeve 211 to pass through the air hole 314 and enter the top of the piston block 112. As the piston block 112 continues to move, the gas in the fixed sleeve 211 continues to decrease.

[0093] At the same time, when the extrusion ring 222 descends, it will also drive the second connecting rod 321 to descend. As the second connecting rod 321 continues to move, the second connecting rod 321 will contact the U-shaped rod 322, pushing the U-shaped rod 322 to descend, allowing the second spring ring 213 to descend, so that the space at the bottom of the first spring ring 212 increases, forming a negative pressure, and after the gas in the sampling cylinder 111 is fully discharged, the suction head is inserted into the honey and the squeezing of the push rod 121 is released, so that the piston block 112 and the first spring ring 212 rise. The first spring ring 212 rises and squeezes the hydraulic oil on its top, and enters the hydraulic cylinder 221 through the special-shaped groove 224. Since the special-shaped groove 224 has multiple continuous reverse bends, these curved channels will increase the friction resistance of the hydraulic oil when the hydraulic oil flows, thereby slowing down the reflux speed of the hydraulic oil and slowing down the rising speed of the first spring ring 212.

[0094] The bottom of the spring ring 212 has negative pressure, which will form a force acting on the spring ring 212. This force is opposite to the release direction of the rebound force of the spring ring 212, which will slow down the rising speed of the spring ring 212 again. By doubly slowing down the release speed of the rebound force of the spring ring 212, the piston block 112 rises slowly, steadily sucking honey into the suction head, and then into the sampling cylinder 111 through the suction head, until the piston block 112 contacts the threaded rod 113 to complete the sampling of honey. This effectively prevents the strong initial rebound force of the spring ring 212 from causing the piston block 112 to rise quickly and be difficult to suck honey steadily, thereby ensuring the accuracy of the sampling amount.

[0095] Secondly, when the spring ring 112 rises, it squeezes the hydraulic oil into the hydraulic cylinder 221 through the special-shaped groove 224, and the hydraulic oil pushes the extrusion ring 222 to rise, driving the connecting rod 111 and the blocking block 312 to rise. Since the gas on the top of the piston block 112 is blocked by the blocking block 312 and the spring ball rod 313, the negative pressure in the fixed sleeve 211 will continue to exist. As the blocking block 312 continues to move, the blocking block 312 will cancel the obstruction of the gas, allowing the gas on the top of the piston block 112 to enter the fixed sleeve 211 through the connecting pipe 214, breaking the negative pressure in the fixed sleeve 211, reducing the blocking force on the spring ring 112, and effectively preventing the elastic potential energy of the spring ring 112 from being weakened as the rebound force of the spring ring 112 is released. The negative pressure limits the return distance of the spring ring 112, affecting the sampling tube 111 from sucking a large amount of honey;

[0096] Secondly, when the extrusion ring 222 rises, it will also drive the second connecting rod 321 to rise. At this time, the second connecting rod 321 is separated from the U-shaped rod 322, and the resilience of the second spring ring 213 is released, causing the second spring ring 213 to rise, so that the distance between the second spring ring 213 and the first spring ring 212 changes less, avoiding the distance between the first spring ring 212 and the second spring ring 213 being too large, resulting in the continuous increase of the negative pressure in the fixed sleeve 211, and effectively preventing the formation of high negative pressure in the fixed sleeve 211, which is greater than the resilience of the first spring ring 212, affecting the return of the first spring ring 212, and affecting the piston block 112 to absorb honey.

[0097] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A food microbial colony sampler, comprising a sampling cylinder (111), wherein a piston block (112) is slidably connected to the inner wall of the sampling cylinder (111), characterized in that: Also includes: A sampling mechanism (1), wherein a quantitative component (11) is fixedly mounted on the bottom of the sampling mechanism (1), a stretching component (12) is mounted on the inner wall of the sampling mechanism (1), and the quantitative component (11) is used to control the amount of honey sucked; A suction mechanism (2), which is installed on the inner wall of the sampling mechanism (1) and is used to suck honey; and A blocking mechanism (3), the blocking mechanism (3) being located at the inner wall of the suction mechanism (2) and being used to slow down the return speed of the suction mechanism (2); A limiting ring (123) is fixedly connected to the inner wall of the sampling cylinder (111), a connecting pipe (214) is connected through the inner wall of the limiting ring (123), and a blocking block (312) is slidably connected to the inner wall of the connecting pipe (214); The method comprises inserting the sampling mechanism (1) into the honey, pressing the stretching assembly (12) to discharge the gas, releasing the stretching assembly (12), and sucking the honey into the sampling mechanism (1) through the suction mechanism (2), and cooperating with the blocking mechanism (3) to slow down the return speed of the suction mechanism (2).

2. A food microbial colony sampler according to claim 1, characterized in that: The sampling mechanism (1) comprises: A quantitative component (11), the quantitative component (11) is fixedly arranged at the bottom of the sampling tube (111) and is used to control the single suction amount of honey; A stretching assembly (12), wherein the stretching assembly (12) is slidably arranged on the inner wall of the sampling cylinder (111) and is used to push the suction mechanism (2) downward; The operator inserts the suction head into the bottom of the sampling tube (111), presses the stretching component (12) to lower the suction mechanism (2) to discharge the gas, and then slowly releases the stretching component (12) to raise the suction mechanism (2) to absorb the honey.

3. A food microbial colony sampler according to claim 2, characterized in that: The suction mechanism (2) comprises: A retraction assembly (21), the retraction assembly (21) being fixedly arranged on the top of the limiting ring (123) and used for controlling the movement of the piston block (112); A deceleration component (22), the deceleration component (22) being fixedly arranged on the inner wall of the sampling cylinder (111) and being used to decelerate the rising speed of the retraction component (21); Pressing the stretching assembly (12) causes the retraction assembly (21) to descend, allowing the piston block (112) to descend and discharge gas, and slowly releasing the stretching assembly (12). The retraction assembly (21) is slowly raised by the deceleration assembly (22), allowing the piston block (112) to smoothly absorb honey.

4. A food microbial colony sampler according to claim 3, characterized in that: The blocking mechanism (3) comprises: a blocking component (31), the blocking component (31) being slidably disposed on the inner wall of the connecting pipe (214) and being used to block the flow of gas; An extrusion assembly (32), wherein the extrusion assembly (32) is slidably disposed on the inner wall of the limiting ring (123) and is used to form a negative pressure; When the retracting assembly (21) descends, the blocking assembly (31) will also descend. As the piston block (112) continues to descend, the gas in the retracting assembly (21) will be reduced, and the extruding assembly (32) will form a negative pressure in the retracting assembly (21).

5. A food microbial colony sampler according to claim 4, characterized in that: The quantitative assembly (11) comprises a threaded rod (113) slidably connected to the inner wall of the limiting ring (123); The stretching assembly (12) includes a push rod (121) slidably connected to the inner wall of the sampling cylinder (111), and a threaded ring (122) is rotatably connected to the inner wall of the sampling cylinder (111); The inner wall of the threaded ring (122) is threadedly connected to the outer wall of the threaded rod (113), and the top of the piston block (112) is fixedly connected to the bottom of the push rod (121); The piston block (112) is lowered by pressing the push rod (121) to discharge gas until the piston block (112) moves to the volume required to extract honey. Then, the threaded ring (122) is rotated to lower the threaded rod (113) to contact the top of the piston block (112), thereby limiting the position of the piston block (112).

6. A food microbial colony sampler according to claim 5, characterized in that: The retraction assembly (21) includes a fixing sleeve (211) fixedly connected to the top of the limiting ring (123), a spring ring (212) is slidably connected to the inner wall of the fixing sleeve (211), and the inner wall of the spring ring (212) is fixedly connected to the outer wall of the push rod (121); A second spring ring (213) is slidably connected to the inner wall of the fixing sleeve (211), and the outer wall of the connecting pipe (214) is connected to the inner wall of the fixing sleeve (211). When the push rod (121) descends, the spring ring (212) descends, squeezing the gas in the fixed sleeve (211). The gas enters the top of the piston block (112) through the connecting pipe (214), reducing the gas inside the fixed sleeve (211).

7. A food microbial colony sampler according to claim 6, characterized in that: The mitigation component (22) comprises a hydraulic cylinder (221) fixedly connected to the inner wall of the sampling cylinder (111), an extrusion ring (222) is slidably connected to the inner wall of the hydraulic cylinder (221), and hydraulic oil is provided on the inner wall of the hydraulic cylinder (221); The bottom of the hydraulic cylinder (221) is connected to two fixed blocks (223), the bottoms of the two fixed blocks (223) are connected to the tops of the two hydraulic cylinders (221), and the inner walls of the two fixed blocks (223) are provided with special-shaped grooves (224); When the spring ring (212) descends, the hydraulic oil inside the hydraulic cylinder (221) enters the hydraulic cylinder (221) through the special-shaped groove (224), and the hydraulic oil in the hydraulic cylinder (221) attracts the extrusion ring (222) to descend.

8. A food microbial colony sampler according to claim 7, characterized in that: The blocking assembly (31) includes a connecting rod (311) fixedly connected to the top of the blocking block (312), the top of the connecting rod (311) is fixedly connected to the bottom of the extrusion ring (222), a spring ball rod (313) is slidably connected to the inner wall of the blocking block (312), and an air hole (314) is opened on the inner wall of the blocking block (312); When the extrusion ring (222) descends, it drives the connecting rod (311) to descend, causing the blocking block (312) to descend until the blocking block (312) blocks the connecting pipe (214). The gas in the fixed sleeve (211) can only enter the top of the piston block (112) through the air hole (314).

9. A food microbial colony sampler according to claim 8, characterized in that: The extrusion assembly (32) includes a second connecting rod (321) slidably connected to the inner wall of the hydraulic cylinder (221), the top of the second connecting rod (321) is fixedly connected to the bottom of the extrusion ring (222), the bottom of the second spring ring (213) is fixedly connected to a U-shaped rod (322), and the outer wall of the U-shaped rod (322) is slidably connected to the inner wall of the limiting ring (123); When the extrusion ring (222) descends, it also drives the second connecting rod (321) to move, so that the second connecting rod (321) pushes the U-shaped rod (322) to descend. At this time, since there is less gas in the fixed sleeve (211), the U-shaped rod (322) drives the second spring ring (213) to descend, which will generate negative pressure in the fixed sleeve (211).

10. A method for using a food microbial colony sampler, using the food microbial colony sampler according to claim 9, characterized in that: The following steps are included: S1: Capacity setting: The operator holds the sampling tube (111) with his hands, puts the suction head on the bottom of the sampling tube (111), presses the push rod (121) to make the piston block (112) and the spring ring (212) descend, so that the bottom of the piston block (112) is flush with the scale line of the required sampling volume, and then rotates the threaded ring (122) to make the threaded rod (113) descend and contact with the top of the piston block (112), thereby limiting the piston block (112) and controlling the suction capacity; S2: Colony sampling: insert the suction head into the honey, then release the squeeze on the push rod (121), so that the piston block (112) and the spring ring (212) rise, and let the piston block (112) rise slowly, and steadily suck the honey into the suction head, and then enter the sampling tube (111) through the suction head to complete the sampling.

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