Separated vegetable oleic acid sampling probe for oleic acid production

Abstract

The invention relates to the technical field of sampling, and discloses a separated vegetable oleic acid sampling probe for oleic acid production, which comprises a sampling frame arranged in a vegetable oleic acid storage barrel, four guide rods connected with a conical block at the bottom of the sampling frame are detachably mounted at the top of the sampling frame and are distributed in a circumferential array along the center of the sampling frame, the sampling frame is slidably connected with a movable block through a cavity formed in the sampling frame, and a sampling piece is arranged in the movable block. The separated vegetable oleic acid sampling probe for oleic acid production can effectively solve the problems that in the prior art, the detection efficiency is seriously limited due to the manual layer-by-layer sampling operation process, and the contact duration of vegetable oleic acid in the storage barrel and air is linearly increased along with the increase of the sampling frequency, so that the detection efficiency is influenced. And unsaturated double bonds in the components of the vegetable oil are subjected to oxidation reaction with oxygen, so that adverse effects on the quality of the vegetable oil acid are generated.

Description

Technical Field

[0001] The invention relates to the technical field of sampling, in particular to a separation type vegetable oleic acid sampling probe used for oleic acid production. Background Art

[0002] Vegetable oleic acid, a mixed fatty acid composition primarily composed of oleic acid extracted from plant-derived oils, has broad application in industrial lubrication and food additives. To ensure that purity, safety, and other parameters of this product meet relevant standards, sampling and analysis of oleic acid within storage containers is required during quality control.

[0003] In existing technology, oleic acid sampling is typically performed manually using a sampling device to extract samples from each oil phase layer by layer, and then collect the samples from different layers into separate sample containers. This manual layer-by-layer sampling process severely limits detection efficiency. Furthermore, as the number of samplings increases, the exposure time of the vegetable oleic acid in the storage barrel to air increases linearly, causing the unsaturated double bonds in the components to oxidize with oxygen, which in turn adversely affects the quality of the vegetable oleic acid. Summary of the Invention

[0004] In response to the above-mentioned shortcomings of the prior art, the present invention provides a separate vegetable oleic acid sampling probe for oleic acid production, which can effectively solve the problem in the prior art that the manual layer-by-layer sampling operation process leads to severe limitation of detection efficiency, and as the number of sampling increases, the contact time between the vegetable oleic acid in the storage barrel and the air increases linearly, causing the unsaturated double bonds in its components to undergo oxidation reaction with oxygen, thereby adversely affecting the quality of the vegetable oleic acid.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a separate vegetable oleic acid sampling probe for oleic acid production, comprising: A sampling rack placed inside the vegetable oleic acid storage tank; A guide rod connected to a conical block at the bottom of the sampling rack is detachably mounted on the top of the sampling rack. The sampling rack is slidably connected to a movable block through a cavity provided therein. The movable block is provided with a sampling member. The sampling members are provided in three groups and are distributed in layers along the central axis of the sampling rack, corresponding to the upper, middle and lower areas of the storage barrel respectively. Among them, the guide rods are provided with two groups and are symmetrically distributed left and right along the center of the sampling rack. The circumferential outer surface of the guide rods of one group is provided with a driving part, and the circumferential outer surface of the guide rods of the other group is provided with an adjusting part. When the sampling rack enters the storage barrel, the driving part can open the sampling parts in sequence to realize the synchronous collection of three layers of media.

[0006] Furthermore, the sampling piece includes a flow channel opened inside the movable block, and the flow channel is designed to be inclined. A sampling bottle connected to the flow channel is detachably installed on one side of the movable block, and a sampling tube connected to the flow channel is detachably installed on the side of the movable block away from the sampling bottle, and the end of the sampling tube away from the flow channel is a sealed end. A through hole is opened on the circumferential outer surface of the sampling tube, and there are multiple through holes and they are distributed in a circular array along the central axis of the sampling tube.

[0007] Furthermore, a sealing ring is slidably connected to the outer circumferential surface of the sampling tube, and the sealing ring is connected to the movable block through an elastic member. The outer circumferential surface of the sealing ring is fixedly connected to an abutment block, and the bottom of the abutment block is designed to be inclined.

[0008] Furthermore, the driving member includes a sliding sleeve that is sleeved on the outer surface of the guide rod, and a limiting hole is opened on the inner wall of the sliding sleeve. A pair of the sliding sleeves are connected by a connecting plate, and a conical float is detachably installed on the top of the connecting plate. The connecting plate is rotatably connected to the side close to the sampling tube and is fitted with a rotating shaft that is in contact with the inclined surface of the abutment block.

[0009] Furthermore, the outer circumferential surface of the guide rod near the sliding sleeve is slidably connected to the movable plate, and an airbag is detachably installed on the top of the movable plate. The top of the movable plate is fixedly connected to an abutment plate, and the abutment plates are provided with two and symmetrically distributed along the center of the movable plate, and the top of the abutment plate is designed to be arc-shaped; A stopper is detachably mounted on the outer circumferential surface of the guide rod near the sliding sleeve, and the stopper is slidably connected to a push block that fits the arc surface of the abutment plate through a sliding hole opened on the outer circumferential surface of the guide rod. The push block is connected to the side wall of the sliding hole by a reset spring, and the stopper, movable plate and connecting plate are arranged in sequence from top to bottom along the central axis of the guide rod.

[0010] Furthermore, a slot is provided inside the guide rod near the sliding sleeve, and the slot is rotatably connected to the limit plate through a pin arranged inside it, a torsion spring is sleeved on the circumferential outer surface of the pin, and a limit ball is fixedly connected to the bottom of the limit plate and fits with the inner wall of the limit hole.

[0011] Furthermore, the adjusting member includes a fixed plate fixedly connected to the side wall of the movable block, and the end of the fixed plate is fixedly connected to a movable sleeve that slides with the outer surface of the circumference of the guide rod; The top of one of the movable sleeves is fixedly connected to a sleeve that slides with the outer circumferential surface of the guide rod, and the outer circumferential surface of the sleeve is slidably connected to a movable ring sleeve. The movable ring sleeve and the top of the movable sleeve are connected by a reset spring. The sleeve is slidably connected to a limit ball through a tapered hole opened on its outer circumferential surface, and the limit ball is provided in plurality and distributed in a circular array along the central axis of the sleeve. A groove that fits the outer circumferential surface of the guide rod near the movable sleeve is provided, and the groove is provided in plurality and distributed in an array along the guide rod.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with three sets of sampling parts. The three sets of sampling tubes are opened sequentially through the same mechanism. The continuous buoyancy of the conical float drives the connecting plate to move, and the upper, middle, and lower layers of the medium in the storage barrel are sampled simultaneously. Compared with the traditional sequential sampling method, the present invention can complete multi-layer sampling in one go, avoiding repeated operations, saving labor costs and time, and significantly improving work efficiency. In addition, the present invention uses a one-time multi-layer sampling method to reduce the storage barrel opening time, thereby reducing the contact time between the unsaturated fatty acids in the vegetable oil acid and oxygen, and preventing the oxidation reaction between them that causes the quality deterioration of the vegetable oil acid. In addition, the continuous buoyancy generated by the conical float drives the connecting plate to move. Under the cooperation of the rotating shaft and the abutment block, the sealing ring "opens" the through-hole on the outer surface of the circumference of the sampling tube, allowing the sampling tube to sample its corresponding layer. When the sealing ring moves to the predetermined position for sampling, the elastic member's restoring force resets the sealed sampling tube through-hole, avoiding excessive sampling and material waste, ensuring the accuracy and consistency of the sampling amount, and ensuring the reliability of the sample data. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0014] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the sampling rack according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the three-dimensional separation structure of the sampling rack according to an embodiment of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the driving member according to an embodiment of the present invention; Figure 5 For the embodiment of the present invention Figure 4A schematic diagram of the partially enlarged structure at point A in the middle; Figure 6 Schematic diagram of the three-dimensional separation structure of the sampling member according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional separation structure of the movable block and the adjusting member according to an embodiment of the present invention; Figure 8 Schematic diagram of the cross-sectional structure of a sleeve according to an embodiment of the present invention; Figure 9 Schematic diagram of the three-dimensional separation structure of the limiting plate and the slot hole in an embodiment of the present invention; Figure 10 This is a schematic diagram of the three-dimensional separation structure of the movable panel and the airbag according to an embodiment of the present invention; Figure 11 Schematic diagram of a partial cross-sectional structure of a sliding sleeve according to an embodiment of the present invention; Figure 12 This is a structural schematic diagram of the three-dimensional state transformation of the sampling piece according to an embodiment of the present invention.

[0015] The numbers in the figure represent: 1. sampling rack; 2. guide rod; 21. slot; 22. limit plate; 23. limit ball; 24. slot; 3. movable block; 4. sampling part; 41. flow channel; 42. sampling bottle; 43. sampling tube; 44. through hole; 45. sealing ring; 46. abutment block; 5. driving part; 51. sliding sleeve; 511. limit hole; 52. connecting plate; 521. conical float; 522. rotating shaft; 53. movable plate; 531. air bag; 532. abutment plate; 54. stopper; 541. push block; 6. adjusting part; 61. fixed plate; 62. movable sleeve; 63. sleeve; 64. movable ring sleeve; 65. limit ball. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. 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 any creative efforts shall fall within the scope of protection of the present invention.

[0017] The present invention will be further described below with reference to the embodiments. Example

[0018] See also Figures 1-12 The present invention provides a technical solution: a separate plant oleic acid sampling probe for oleic acid production, comprising: A sampling rack 1 is provided in the vegetable oleic acid storage barrel; The top of the sampling rack 1 is detachably mounted with a guide rod 2 connected to a conical block at its bottom. The sampling rack 1 is slidably connected to a movable block 3 through a cavity provided therein. The movable block 3 is provided with a sampling member 4. The sampling members 4 are provided in three groups and are distributed in layers along the central axis of the sampling rack 1, corresponding to the upper, middle, and lower areas of the storage barrel, respectively. Among them, there are two groups of guide rods 2 and they are symmetrically distributed along the left and right center of the sampling rack 1. The outer surface of the circumference of one group of guide rods 2 is provided with a driving part 5, and the outer surface of the circumference of the other group of guide rods 2 is provided with an adjusting part 6. When the sampling rack 1 enters the storage barrel, the driving part 5 can open the sampling part 4 in turn to realize the synchronous collection of the three layers of media.

[0019] The sampling member 4 includes a flow channel 41 opened inside the movable block 3, and the flow channel 41 is designed to be inclined. A sampling bottle 42 connected to the flow channel 41 is detachably installed on one side of the movable block 3, and a sampling tube 43 connected to the flow channel 41 is detachably installed on the side of the movable block 3 away from the sampling bottle 42, and the end of the sampling tube 43 away from the flow channel 41 is a sealed end. A through hole 44 is opened on the circumferential outer surface of the sampling tube 43, and there are multiple through holes 44 and they are distributed in a circular array along the central axis of the sampling tube 43.

[0020] The outer surface of the sampling tube 43 is slidably connected to a sealing ring 45, and the sealing ring 45 is connected to the movable block 3 through an elastic member. The outer surface of the sealing ring 45 is fixedly connected to an abutment block 46, and the bottom of the abutment block 46 is designed to be inclined.

[0021] The driving member 5 includes a sleeve 51 which is sleeved on the outer surface of the guide rod 2, and a limiting hole 511 is provided on the inner wall of the sleeve 51. A pair of sleeves 51 are connected by a connecting plate 52. A conical float 521 is detachably installed on the top of the connecting plate 52. The connecting plate 52 is rotatably connected to the side close to the sampling tube 43 with a rotating shaft 522 which fits the inclined surface of the abutment block 46.

[0022] The outer circumferential surface of the guide rod 2 near the sliding sleeve 51 is slidably connected to the movable plate 53, and an air bag 531 is detachably mounted on the top of the movable plate 53. An abutment plate 532 is fixedly connected to the top of the movable plate 53. There are two abutment plates 532 and they are symmetrically distributed along the center of the movable plate 53. The top of the abutment plate 532 is designed to be curved. A stopper 54 is detachably mounted on the outer circumferential surface of the guide rod 2 near the sliding sleeve 51, and the stopper 54 is slidably connected to a pusher block 541 that fits the arc surface of the abutment plate 532 through a sliding hole provided on the outer circumferential surface of the guide rod 2. The pusher block 541 is connected to the side wall of the sliding hole by a return spring. The stopper 54, the movable plate 53 and the connecting plate 52 are arranged in sequence from top to bottom along the central axis of the guide rod 2.

[0023] A slot hole 21 is provided inside the guide rod 2 near the sliding sleeve 51, and the slot hole 21 is rotatably connected to the limit plate 22 through a pin shaft arranged inside it. A torsion spring is sleeved on the outer surface of the pin shaft, and a limit ball 23 is fixedly connected to the bottom of the limit plate 22 and fits into the inner wall of the limit hole 511.

[0024] The adjusting member 6 includes a fixed plate 61 fixedly connected to the side wall of the movable block 3, and a movable sleeve 62 that slides with the outer surface of the circumference of the guide rod 2 is fixedly connected to the end of the fixed plate 61; The top of one of the movable sleeves 62 is fixedly connected to a sleeve 63 that slides with the outer surface of the guide rod 2, and the outer surface of the sleeve 63 is slidably connected to a movable ring sleeve 64. The movable ring sleeve 64 is connected to the top of the movable sleeve 62 by a reset spring. The sleeve 63 is slidably connected to a limit ball 65 through a tapered hole opened on its outer surface of the circumference, and the limit ball 65 is provided in plurality and distributed in a circular array along the central axis of the sleeve 63. The outer surface of the guide rod 2 near the movable sleeve 62 is provided with a groove 24 that fits with the outer surface of the circumference of the limit ball 65, and the groove 24 is provided in plurality and distributed in an array along the guide rod 2.

[0025] Vegetable oleic acid sampling pretreatment process: To adjust the spacing between the sampling elements 4, the operator applies downward force to pull the movable collar 64, which then slides downward along the central axis of the sleeve 63 and compresses the return spring. When the movable collar 64 reaches its predetermined travel, the retaining ball 65, previously restrained by the inner wall of the movable collar 64, loses its radial restraint due to the tapered hole being unshielded. Under its own gravity, it moves centrifugally along the inclined surface of the tapered hole until it disengages from the retaining groove 24 on the outer surface of the guide rod 2. At this point, the retaining force between the sleeve 63 and the guide rod 2 is released, allowing the operator to axially move the sleeve 63 along the guide rod 2, precisely controlling the displacement of the movable block 3 using the graduated markings on the outer circumference of the other guide rod 2.

[0026] After the movable block 3 is adjusted into position, the movable ring 64 is released, and the reset spring drives the movable ring 64 to reset. The inner wall limit section applies radial pressure to the limit ball 65, forcing the limit ball 65 to slide in the opposite direction along the tapered hole and re-engage in the groove 24 of the guide rod 2, thereby completing the locking of the position of the sampling piece 4. By repeating the above operation, the axial spacing of the three groups of sampling pieces 4 can be adaptively adjusted to adapt to the different liquid levels of vegetable oil acid in the storage barrel. After the adjustment is completed, if the vegetable oil acid in the storage barrel solidifies due to temperature changes, it is necessary to use water bath heating, jacket heating or a constant temperature box to liquefy it to avoid difficulty in inserting or extracting the sampling piece 4, which may cause inaccurate sampling volume, contamination or equipment blockage.

[0027] It is worth noting that when the movable ring sleeve 64 descends to the maximum stroke, the limit ball 65 just enters the annular gap area formed by the sliding section of the inner wall of the movable ring sleeve 64 and the outer surface of the guide rod 2. The gap size is designed to only allow the limit ball 65 to remain in a radially free state without falling off, thereby avoiding the failure of the adjustment part 6 due to the detachment of the limit ball 65 during the adjustment process, affecting the normal use of the sampling part 4.

[0028] Sampling process: After completing the preliminary adjustment operation, the operator first opens the sealed lid of the storage barrel storing the vegetable oleic acid, and then places the sampling rack 1 into the barrel through the port. A sealing rubber gasket is provided on the top of the sampling rack 1 near the barrel side, which can fit the barrel port to prevent a large amount of air from entering the barrel during the sampling process. When the sampling rack 1 enters the barrel and comes into contact with the vegetable oleic acid inside, the movable plate 53 immediately forms a physical contact interface with the vegetable oleic acid. As the sampling rack 1 continues to move downward, the movable plate 53, under the buoyancy of the airbag 531, can produce an upward relative sliding motion along the axial direction of the guide rod 2 until the movable plate 53 moves to the preset stop block 54 position, and the abutment plate 532 on the top of the movable plate 53 comes into contact with the push block 541 inside the stop block 54. Because the end of the abutment block 46 is designed with an arc-shaped curved surface, and the lower portion of the push block 541 is provided with an inclined guide structure, when the two come into contact and generate compressive stress, the push block 541, guided by the inclined surface, moves radially along the sliding hole on the outer surface of the stop block 54 toward the slot 21 of the guide rod 2 until the end of the push block 541 forms a rigid contact with the limit plate 22 within the slot 21. When the compressive force exerted by the push block 541 on the limit plate 22 exceeds the preload force of the torsion spring on the outer surface of the pin, the limit plate 22 rotates about its internal pin, causing the limit ball 23 at the lower portion of the limit plate 22 to disengage from the limit hole 511 within the sliding sleeve 51 (the limit hole 511 is slightly larger than the limit ball 23), thereby releasing the limit constraint between the sliding sleeve 51 and the guide rod 2.

[0029] It is worth noting that the pin is located on the side of the limit plate 22 close to the limit ball 23. Since the pin is close to the limit ball 23 (resistance point), the power arm (the distance from the action point of the push block 541 to the pin) is much larger than the resistance arm (the distance from the limit ball 23 to the pin), thereby forming a "force-saving lever". Through the "force-saving lever", even if the preload force of the torsion spring is large, to ensure the limit stability under normal conditions, the push block 541 can still break through the threshold with a smaller force, avoiding the jamming problem caused by insufficient driving force and improving the response sensitivity of the mechanism.

[0030] Because the conical float 521 is mounted on top of the connecting plate 52, the buoyancy of the conical float 521 drives the connecting plate 52 to cause the sleeve 51 to slide upward along the guide rod 2. As the connecting plate 52 moves upward along the guide rod 2, the rotating shaft 522 of the abutment plate 532, located near the movable block 3, comes into contact with the inclined surface of the abutment block 46. As the connecting plate 52 continues to move upward, the engagement between the rotating shaft 522 and the inclined surface pushes the sealing collar 45 axially along the sampling tube 43, simultaneously compressing the elastic member disposed between the sealing collar 45 and the sampling tube 43. The elastic member can be an elastic frame, an elastic pad, or the like, preferably a return spring. When the sealing collar 45 moves to a predetermined position, the through hole 44 on the surface of the sampling tube 43 is exposed. At this point, the vegetable oil acid in the storage barrel, under the action of the pressure differential, enters the sampling tube 43 through the through hole 44 and flows into the sampling bottle 42 along the flow channel 41 within the movable block 3.

[0031] The continuous buoyancy generated by the conical float 521 drives the connecting plate 52 upward. When the connecting plate 52 disengages from the abutment block 46, the elastic member returns the sealing collar 45 to its initial position, sealing the through-hole 44 of the sampling tube 43. This prevents material waste due to oversampling and ensures accurate and consistent sampling. The conical surface of the conical float 521 provides a greater vertical buoyancy component. When subjected to force in vegetable oleic acid, the inclined surface of the float 521 aligns the buoyancy more closely with the axial direction of the guide rod 2, reducing the risk of deflection caused by the radial component and ensuring stable upward movement of the connecting plate 52 along the guide rod 2, preventing it from becoming stuck.

[0032] As connecting plate 52 continues to move, the other two sets of sampling tubes 43 open sequentially using the same mechanism, enabling simultaneous sampling of the upper, middle, and lower layers of vegetable oil acid within the storage barrel. This completes all three layers of sampling at once, significantly improving sampling efficiency and saving time and labor costs compared to traditional sequential sampling methods. When connecting plate 52 moves to the bottom of movable plate 53 and sliding sleeve 51 contacts the bottom of movable plate 53, the upward movement of sliding sleeve 51 is mechanically limited and halted.

[0033] It is worth noting that the flow channel 41 in this embodiment adopts an inclined design to form a specific angle with the horizontal plane. Under the synergistic effect of static pressure, it significantly promotes the rapid flow of vegetable oil acid near the sampling tube 43 to the sampling bottle 42. At the same time, the gravity component formed by the inclined angle of the flow channel 41 is utilized to effectively prevent the reverse flow of the liquid in the sampling bottle 42.

[0034] After the sampling is completed, the operator takes out the sampling rack 1 from the storage container. When the sampling rack 1 is separated from the oleic acid in the storage barrel, the oleic acid will move down along the surface of the sampling rack 1 to the surface of the conical block under the cooperation of its own gravity. The conical block is made of non-polar material, and polytetrafluoroethylene, polyethylene, polystyrene, etc. can be selected. Polytetrafluoroethylene is preferred here, and its surface is processed with a guide groove structure. The inclination angle design of the cone surface combined with the drainage effect of the guide groove can make the material attached to the surface of the conical block slide quickly along the guide groove under the action of gravity and return to the inside of the storage barrel, effectively avoiding the retention or dripping of the material on the surface of the sampling rack 1, significantly reducing the sample loss and contamination risk, while preventing liquid from hanging on the wall, simplifying the subsequent cleaning process, and effectively avoiding cross contamination between different samples. The sampling bottles 42 are removed from the movable block 3 through a quick-release connection mechanism (a threaded connection is preferred in this embodiment), and the samples in each sampling bottle 42 are poured into a clean container and stirred to form a mixed average sample. The operator performs relevant tests and analyses on the mixed average sample and records the specific sampling conditions, including relevant parameters of the layer, such as depth, temperature, etc., and the appearance characteristics of the sample, such as color and transparency, for subsequent analysis and reference.

[0035] The present invention adopts three groups of sampling pieces 4, which has the following advantages: Advantage 1: The three groups of sampling tubes 43 are opened in sequence through the same mechanism, and the continuous buoyancy of the conical float 521 is used to drive the connecting plate 52 to move, thereby synchronously completing the sampling of the upper, middle and lower layers of the medium in the storage barrel. Compared with the traditional sequential sampling method, multi-layer sampling can be completed at one time, avoiding repeated operations, saving labor costs and time, and significantly improving work efficiency.

[0036] Advantage 2: Traditional sampling requires opening the storage barrel sealing cover multiple times, and the equipment needs to be taken out, repositioned and reinserted after each sampling. The present invention uses a one-time multi-layer sampling method to reduce the storage barrel opening time, thereby reducing the contact time between unsaturated fatty acids in vegetable oil acid and oxygen, avoiding the oxidation reaction between them that leads to deterioration of the quality of vegetable oil acid.

[0037] Advantage three: through the coordination of the movable ring sleeve 64, the limit ball 65 and the guide rod 2 and other structures, the operator can easily adjust the axial spacing of the three groups of sampling parts 4, which can adapt to the vegetable oil acid at different liquid levels in the storage barrel, making the equipment suitable for a variety of working conditions and ensuring accurate sampling at different liquid levels. When the movable ring sleeve 64 descends to the maximum stroke, the limit ball 65 enters a specific annular gap area. The size design of this area ensures that the limit ball 65 remains radially free but does not fall off, avoiding the failure of the adjustment part 6 due to the detachment of the limit ball 65 during the adjustment process, ensuring the normal use of the sampling part 4, and improving the stability and reliability of the equipment operation.

[0038] Advantage four: The continuous buoyancy generated by the conical float 521 is used to drive the connecting plate 52 to move. Under the cooperation of the rotating shaft 522 and the abutment block 46, the sealing ring 45 will "open" the through hole 44 on the outer surface of the circumference of the sampling tube 43, so that the sampling tube 43 can sample its corresponding layer. After the sealing ring 45 moves to the predetermined position for sampling, the through hole 44 of the sealed sampling tube 43 is reset under the action of the restoring force of the elastic member, avoiding material waste caused by excessive sampling, ensuring the accuracy and consistency of the sampling amount, and ensuring the reliability of the sample data.

[0039] Advantage five: the flow channel 41 forms a specific angle with the horizontal plane, and uses the synergistic effect of static pressure and gravity to make the vegetable oleic acid flow quickly to the sampling bottle 42, while preventing the liquid from flowing backward, optimizing fluid dynamics, shortening the sampling time, avoiding insufficient sampling or residual sampling due to poor flow, ensuring complete sample collection, and improving sampling accuracy and stability.

[0040] Advantage six: The conical block at the bottom of the sampling rack 1 is made of non-polar material, and its surface is processed with a guide groove structure. Combined with the inclination angle of the cone, the attached material can quickly slide along the guide groove under the action of gravity and return to the storage barrel, avoiding the material from being retained or dripping on the surface of the sampling rack 1, reducing the risk of sample loss and contamination, and at the same time preventing liquid from sticking to the wall, simplifying the cleaning process.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A separate vegetable oleic acid sampling probe for oleic acid production, characterized in that: include: A sampling rack (1) disposed in a vegetable oil acid storage barrel; The top of the sampling rack (1) is detachably mounted with a guide rod (2) connected to a conical block at its bottom. The sampling rack (1) is slidably connected to a movable block (3) via a cavity arranged inside the sampling rack (1). The movable block (3) is provided with a sampling piece (4). The sampling piece (4) is provided in three groups and is distributed in layers along the central axis of the sampling rack (1), corresponding to the upper, middle and lower regions in the storage barrel, respectively. The guide rods (2) are provided in two groups and are symmetrically distributed along the center of the sampling rack (1). The outer circumferential surface of the guide rods (2) of one group is provided with a driving member (5), and the outer circumferential surface of the guide rods (2) of the other group is provided with an adjusting member (6). When the sampling rack (1) enters the storage barrel, the driving member (5) opens the sampling member (4) in sequence, thereby realizing synchronous collection of three layers of media.

2. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 1, characterized in that: The sampling member (4) includes a flow channel (41) opened inside the movable block (3), and the flow channel (41) is designed to be inclined. A sampling bottle (42) connected to the flow channel (41) is detachably mounted on one side of the movable block (3). A sampling tube (43) connected to the flow channel (41) is detachably mounted on the side of the movable block (3) away from the sampling bottle (42), and the end of the sampling tube (43) away from the flow channel (41) is a sealed end. A through hole (44) is opened on the circumferential outer surface of the sampling tube (43), and a plurality of through holes (44) are provided and distributed in a circumferential array along the central axis of the sampling tube (43).

3. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 2, characterized in that: The outer circumferential surface of the sampling tube (43) is slidably connected to a sealing ring (45), and the sealing ring (45) is connected to the movable block (3) via an elastic member. The outer circumferential surface of the sealing ring (45) is fixedly connected to an abutment block (46), and the bottom of the abutment block (46) is designed to be inclined.

4. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 1, characterized in that: The driving member (5) includes a sliding sleeve (51) sleeved on the outer circumferential surface of the guide rod (2), and a limiting hole (511) is provided on the inner wall of the sliding sleeve (51). A pair of the sliding sleeves (51) are connected by a connecting plate (52). A conical float (521) is detachably mounted on the top of the connecting plate (52). The connecting plate (52) is rotatably connected to a rotating shaft (522) that is in contact with the inclined surface of the abutment block (46) on the side close to the sampling tube (43).

5. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 4, characterized in that: The outer circumferential surface of the guide rod (2) near the sliding sleeve (51) is slidably connected to the movable plate (53), and an air bag (531) is detachably installed on the top of the movable plate (53). The top of the movable plate (53) is fixedly connected to an abutment plate (532), and the abutment plates (532) are provided with two and are symmetrically distributed along the center of the movable plate (53). The top of the abutment plate (532) is designed to be arc-shaped. A stopper (54) is detachably mounted on the outer circumferential surface of the guide rod (2) near the sliding sleeve (51), and the stopper (54) is slidably connected to a pusher block (541) that fits the arc surface of the abutment plate (532) through a sliding hole provided on the outer circumferential surface of the guide rod (2). The pusher block (541) is connected to the side wall of the sliding hole via a return spring. The stopper (54), the movable plate (53) and the connecting plate (52) are sequentially arranged from top to bottom along the central axis of the guide rod (2).

6. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 4, characterized in that: A slot hole (21) is provided inside the guide rod (2) near the sliding sleeve (51), and the slot hole (21) is rotatably connected to a limit plate (22) via a pin shaft provided inside the slot hole (21), a torsion spring is sleeved on the circumferential outer surface of the pin shaft, and a limit ball (23) is fixedly connected to the bottom of the limit plate (22) and is in contact with the inner wall of the limit hole (511).

7. The separate vegetable oleic acid sampling probe for oleic acid production according to claim 1, characterized in that: The adjusting member (6) comprises a fixed plate (61) fixedly connected to the side wall of the movable block (3), and the end of the fixed plate (61) is fixedly connected to a movable sleeve (62) that slides with the outer circumferential surface of the guide rod (2); The top of one of the movable sleeves (62) is fixedly connected to a sleeve (63) that slides with the outer circumferential surface of the guide rod (2), and the outer circumferential surface of the sleeve (63) is slidably connected to a movable ring sleeve (64), and the movable ring sleeve (64) is connected to the top of the movable sleeve (62) through a reset spring. The sleeve (63) is slidably connected to a limit ball (65) through a tapered hole opened on its outer circumferential surface, and the limit ball (65) is provided with a plurality and distributed in a circumferential array along the central axis of the sleeve (63). The outer circumferential surface of the guide rod (2) near the movable sleeve (62) is provided with a groove (24) that fits the outer circumferential surface of the limit ball (65), and the groove (24) is provided with a plurality and distributed in an array along the guide rod (2).

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