An automatic sampling device for edible oil production

Abstract

The present invention relates to the technical field of sampling devices, and specifically discloses an automatic sampling device for edible oil production, which includes a housing, a diversion pipe, a sampling pipe and an adjustment mechanism. A connecting portion is provided at the inner end of the diversion pipe, and the sampling pipe is slidably matched with the connecting portion. The adjustment mechanism includes a connecting member, a movable member, a driving assembly and a guiding assembly; the movable member is sleeved outside the diversion pipe, a spiral groove is provided on the outside of the diversion pipe, and the movable member is slidably matched with the spiral groove. A cover body is rotatably connected to the inner end of the movable member. The connecting member is sleeved outside the movable member, and the movable member is slidably matched with the connecting member. A limiting portion is connected to the outer end of the movable member, and the driving assembly drives the movable member to slide; the guiding assembly includes a guiding member and a guiding groove. The guiding groove is spirally arranged on the connecting member, and the guiding member is slidably matched with the guiding groove. A plugging assembly is further provided at the inner end of the sampling pipe. The sampling device provided by the present invention facilitates sampling of oil liquids at different positions in the conveying pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling devices, and particularly to an automatic sampling device for edible oil production. Background Art

[0002] During the production process of edible oil, in order to evaluate its quality and safety and ensure its compliance with food safety standards, it is necessary to sample and detect the edible oil. To ensure the reliability of the evaluation results, it is necessary to sample the oil at different positions. Obtaining the oil at different positions through manual operation has the problems of low efficiency and unsatisfactory sampling position accuracy.

[0003] The patent document with the authorization announcement number CN113820182B discloses an oil layer sampling device for an edible oil automatic production line, including a vertical support, a first support plate, a placement power assembly, a sampling action assembly, a sampler, etc. The upper ends of four vertical supports are fixedly connected with a first support plate. The placement power assembly is arranged at the upper part of the vertical support, and the sampling action assembly is arranged under the first support plate and connected with the placement power assembly; the layer sampling device of this patent document achieves the layer sampling effect of exempting manual direct sampling operation and avoiding extracting mixed oil at the same height position in different containers. By designing a sampler, a placement power assembly, a sampling action assembly, an attached oil removal device, and a sampler placement device, the sampler realizes the simultaneous, equal amount, and prevention of sampling of mixed oil from different layers of edible oil. The placement power assembly and the sampling action assembly cooperate with the sampler placement device to realize the automatic replacement of the sampler after sampling. While the sampler moves up and down, the attached oil removal device removes the attached oil on the sampling cylinder, facilitating subsequent manual analysis of the sample.

[0004] During the production process, after the initial pressing operation of edible oil, a series of refining processes such as degumming, deacidification, decolorization, and deodorization are still required. After the edible oil completes a treatment process, it needs to be transported to the next treatment process by a conveying pipeline. To evaluate the stability of the production process and identify potential improvement spaces, such as temperature control and flow rate adjustment, it is necessary to sample and analyze the oil in the conveying pipeline to monitor the quality parameters of the oil in real time and ensure that the product meets the specified quality standards. The physical and chemical indexes of the oil at different distances from the inner wall of the conveying pipeline may also vary. Therefore, when sampling the oil in the conveying pipeline, to ensure the reliability of the final evaluation results, it is also necessary to sample at different positions in the pipeline. The layer sampling device provided in the above patent document can perform layer sampling on the oil in the container, but cannot be applied to the layer sampling operation of the oil in the conveying pipeline. Summary of the Invention

[0005] The present invention provides an automatic sampling device for edible oil production, aiming to solve the problem that the sampling device in the related art cannot perform layer sampling on the oil in the conveying pipeline.

[0006] An automatic sampling device for edible oil production according to the present invention includes a housing. One end of the housing is detachably connected to a sampling point, with the side facing the sampling point being the inner side. The sampling device further includes a diversion pipe, a sampling pipe, and an adjustment mechanism. A connection portion is provided at the inner end of the diversion pipe, and the sampling pipe is slidably engaged with the connection portion. The adjustment mechanism includes a connecting member, a movable member, a driving assembly, and a guiding assembly;

[0007] The movable member is sleeved outside the diversion pipe. A spiral groove is provided on the outside of the diversion pipe, and the movable member is slidably engaged with the spiral groove. A cover body is rotatably connected to the inner end of the movable member, and the cover body seals the gap between the movable member and the diversion pipe. The connecting member is sleeved outside the movable member, and the movable member is slidably and elastically connected to the connecting member. The driving assembly drives the movable member to slide relative to the connecting member. A limiting portion is further connected to the outer end of the movable member, and the limiting portion is used to limit the relative sliding range between the movable member and the connecting member;

[0008] The guiding assembly includes a guiding member and a guiding groove. The guiding groove is arranged in a spiral shape on the connecting member, and the guiding member is slidably engaged with the guiding groove. The guiding member is fixed relative to the sampling pipe. A blocking assembly for actively blocking the sampling pipe is further provided at the inner end of the sampling pipe.

[0009] The beneficial effects are as follows: It is convenient to sample the oil in the conveying pipeline, and at the same time improve the reliability of the sample detection results in the conveying pipeline. After the housing is connected to the sampling point, the sampling pipe extends into the interior of the conveying pipeline. The adjustment mechanism adjusts the position of the sampling pipe. After the sampling pipe moves to the designated position, the blocking assembly opens. After the oil enters the sampling pipe, the blocking assembly continues to block the sampling pipe. Then the adjustment mechanism adjusts the sampling pipe to slide along the connecting portion to communicate with the diversion pipe. The sample in the sampling pipe flows out through the diversion pipe, and the staff collects the flowing sample, improving the flexibility of sampling the oil at different positions in the conveying pipeline and facilitating the comprehensive evaluation of the oil in the conveying process according to the detection results of the sample.

[0010] Preferably, the blocking assembly includes a blocking head and a blocking block. The blocking head is fixed relative to the inner end of the sampling pipe. The blocking block is slidably and elastically connected to the inner end of the sampling pipe and the inner wall of the sampling pipe, and the blocking block is in active abutment with the blocking head.

[0011] Preferably, the driving assembly includes an air inlet member and an air inlet passage. The air inlet passage is disposed inside the connecting member. The air inlet passage communicates with the front end of the movable member. The air inlet member is connected to the air inlet passage. A connecting pipe is connected to the inner end of the movable member. The connecting pipe is connected to the guiding member. The guiding member is connected to the sampling pipe through a guiding pipe. The connecting pipe communicates with the guiding pipe. The guiding pipe is movably communicated with the sampling pipe and is used to push the blocking block to slide.

[0012] Preferably, an annular movable cavity is formed between the blocking block and the inner wall of the sampling pipe. An air inlet one is provided at the inner end of the sampling pipe. The guiding pipe communicates with the air inlet one. The air inlet one is movably docked with the movable cavity. The blocking block and the sampling pipe are connected by an elastic member. The elastic member is disposed in the movable cavity.

[0013] The beneficial effect is that it avoids the exchange of the sample in the sampling pipe with the oil in the non-sampling position in the conveying pipeline during the reset operation of the sampling pipe. The oil in the conveying pipeline is in a flowing state. After the sampling operation is completed, the blocking assembly can timely block the sampling pipe to prevent the oil in the non-sampling position of the conveying pipeline from entering the sampling pipe and ensure the sampling accuracy.

[0014] Preferably, an air inlet two is provided on the sampling pipe. An annular air inlet cavity is provided on the blocking block. A plurality of air outlet ports communicating with the air inlet cavity are further provided at the outer end of the blocking block. The air inlet two is movably communicated with the air inlet cavity. A lever is fixed to the blocking block. A stop rod is provided on the connecting portion. When the sampling pipe communicates with the diversion pipe, the lever abuts against the stop rod, and the air inlet two communicates with the air inlet cavity. An air inlet pipe is further connected to the connecting pipe. The air inlet pipe communicates with the air inlet two.

[0015] The beneficial effect is that it promotes the full outflow and collection of the sample in the sampling pipe, enables a sufficient amount of sample to be available for testing during the detection process, and at the same time reduces the residue of the sample in the sampling pipe and the diversion pipe. After the sample in the sampling pipe flows out, the air inlet member continues to introduce gas into the movable member. After the movable member moves to a position where the connecting pipe is misaligned with the blocking portion, the gas in the movable member enters the air inlet pipe through the connecting pipe, further enters the air inlet cavity, and is ejected through each air outlet port. The remaining oil in the sampling pipe and the diversion pipe continues to flow out under the action of the air flow.

[0016] Preferably, the diameter of the blocking head decreases from inside to outside. The outer end of the blocking block has an arc surface matching the blocking head.

[0017] The beneficial effect is that it ensures the blocking effect of the blocking assembly on the inner end of the sampling pipe.

[0018] Preferably, a plugging rod is further fixed on the connecting portion. The plugging rod penetrates through the cover body and is slidably matched with the cover body. A plugging portion is fixed at the outer end of the plugging rod, and the plugging portion is movably abutted against the air inlet end of the connecting pipe.

[0019] Preferably, the limiting portion is rod-shaped and extends to the outside of the housing. A plurality of limiting holes are provided on the limiting portion, and limiting rods are inserted and matched with the limiting holes.

[0020] The beneficial effects are as follows: The accuracy of adjusting the sampling position of the sampling pipe is improved. After the limiting rod is inserted into the corresponding limiting hole, when the moving part moves until the limiting rod abuts against the housing, the movement of the moving part can be blocked, so that the sampling pipe stops after moving to the designated position and samples are taken at this target position, which is convenient for the staff to confirm the sampling position of the sampling pipe.

[0021] Preferably, an observation window is further provided at the outer end of the housing, and the observation window is opposite to the outer end of the diversion pipe.

[0022] The beneficial effects of the present invention are as follows:

[0023] (1) It is convenient to take samples of the oil in the conveying pipeline, and at the same time improve the reliability of the detection results of the samples in the conveying pipeline. After the housing is connected to the sampling point, the sampling pipe extends into the interior of the conveying pipeline. The adjusting mechanism adjusts the position of the sampling pipe. After the sampling pipe moves to the designated position, the plugging assembly opens, and the oil enters the sampling pipe. Then the plugging assembly continues to plug the sampling pipe. After that, the adjusting mechanism adjusts the sampling pipe to slide along the connecting portion until it communicates with the diversion pipe, and the sample in the sampling pipe flows out through the diversion pipe. The staff collects the flowing samples, which improves the flexibility of sampling the oil at different positions in the conveying pipeline and is convenient for comprehensively evaluating the oil in the conveying process according to the detection results of the samples.

[0024] (2) Promote the full outflow and collection of the samples in the sampling pipe, so that there is a sufficient amount of samples for detection during the detection process, and at the same time reduce the residue of the samples in the sampling pipe and the diversion pipe. After the samples in the sampling pipe flow out, the air inlet part continues to introduce gas into the moving part. When the moving part moves until the connecting pipe and the plugging portion are misaligned, the gas in the moving part enters the intake pipe through the connecting pipe, and further enters the intake cavity and is ejected through each air outlet. The remaining oil in the sampling pipe and the diversion pipe continues to flow out under the action of the air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of the present invention.

[0026] Figure 2 is the structural schematic diagram inside the housing.

[0027] Figure 3It is a schematic diagram of the connection structure of the diversion pipe, sampling pipe and plugging assembly in the present invention.

[0028] Figure 4 is Figure 3 an enlarged view of part A in

[0029] Figure 5 a schematic diagram of the structure of the plugging block in the present invention.

[0030] Figure 6 a schematic diagram of the structure of the connecting piece in the present invention.

[0031] Reference numerals:

[0032] 1. Housing; 11. Observation window; 2. Connecting piece; 21. Guide groove; 22. Air inlet channel; 3. Movable piece; 31. Limiting part; 311. Limiting hole; 312. Limiting rod; 32. Cover body; 4. Diversion pipe; 41. Connecting part; 411. Stop rod; 42. Spiral groove; 5. Sampling pipe; 51. Plugging head; 52. Plugging block; 521. First air inlet; 522. Second air inlet; 523. Air inlet cavity; 524. Air outlet; 525. Shielding piece; 53. Pushing rod; 6. Guide piece; 61. Connecting pipe; 62. Guide pipe; 63. Air inlet pipe. Detailed implementation manners

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0034] As Figure 1 and Figure 2 shown, the automatic sampling device for edible oil production of the present invention includes a housing 1, a diversion pipe 4, a sampling pipe 5 and an adjustment mechanism. The housing 1 is cylindrical, and one end of the housing 1 is closed. There is a sampling point on the conveying pipeline. The open end of the housing 1 is detachably connected to the sampling point on the conveying pipeline. The connection manner between the housing 1 and the sampling point includes but is not limited to threaded connection and clamping connection. Before the oil liquid is introduced into the conveying pipeline, the staff installs the sampling device at the sampling point and makes the open end of the housing 1 be hermetically connected to the sampling point. For the convenience of description, the side facing the sampling point is defined as the inner side. The outer end of the sampling pipe 5 is slidably matched with the inner end of the diversion pipe 4. The inner end of the sampling pipe 5 is provided with a plugging assembly. The adjustment mechanism is used to adjust the relative position between the sampling pipe 5 and the diversion pipe 4. After the housing 1 is connected to the sampling point, the sampling pipe 5 extends into the conveying pipeline. The adjustment mechanism changes the position of the sampling pipe 5 in the conveying pipeline by adjusting the position of the sampling pipe 5, so as to realize the operation of sampling the oil liquid at different positions in the conveying pipeline.

[0035] The diversion pipe 4 is coaxially arranged with the housing 1. The outer end of the diversion pipe 4 is rotationally matched with the closed end of the housing 1. The inner end of the diversion pipe 4 is provided with a connecting part 41. The outer end of the sampling pipe 5 is slidably matched with the connecting part 41. The adjusting mechanism adjusts the position of the sampling pipe 5. After the sampling pipe 5 moves to the designated position, the blocking assembly opens. After the oil enters the sampling pipe 5, the blocking assembly continues to block the sampling pipe 5. Then the adjusting mechanism drives the sampling pipe 5 to slide along the connecting part 41 until it communicates with the diversion pipe 4. The sample in the sampling pipe 5 flows out through the diversion pipe 4, and the staff collects the sample flowing out of the diversion pipe 4.

[0036] The adjusting mechanism includes a connecting part 2, a movable part 3, a driving assembly and a guiding assembly. The connecting part 2 is arranged in the housing 1 and is fixedly arranged relative to the housing 1. The movable part 3 is cylindrical. The movable part 3 is sleeved outside the diversion pipe 4. The connecting part 2 is sleeved outside the movable part 3. The movable part 3 can slide relative to the connecting part 2. The movable part 3 is also connected to the connecting part 2 by a spring. The spring is sleeved outside the diversion pipe 4. One end of the spring is fixed to the connecting part 2, and the other end of the spring is fixed relative to the movable part 3. An annular baffle is fixed inside the movable part 3. The spring is fixed to the baffle. A spiral groove 42 is provided on the outer wall of the diversion pipe 4. A sliding block is provided on the movable part 3 and is slidably matched with the spiral groove 42. When the movable part 3 slides inward, the diversion pipe 4 is driven to rotate under the cooperation of the sliding block and the spiral groove 42, and the spring is stretched to store energy. The driving assembly is used to push the movable part 3 to slide relative to the connecting part 2. The guiding assembly includes a guiding part 6 and a guiding groove 21. The guiding groove 21 is in a spiral shape. The guiding groove 21 is arranged on the connecting part 2. The specific structure of the guiding groove 21 and the connecting part 2 is as Figure 6 shown. One end of the guiding part 6 is slidably matched with the guiding groove 21, and the other end of the guiding part 6 is fixed relative to the sampling pipe 5. When the movable part 3 drives the diversion pipe 4 to rotate, the sampling pipe 5 is driven to rotate through the connecting part 41, and further drives the guiding part 6 to slide along the guiding groove 21. During the process of the guiding part 6 sliding along the guiding groove 21, the sampling pipe 5 is driven to slide relative to the connecting part 41, so as to realize the adjustment of the sampling position of the sampling pipe 5.

[0037] To further improve the accuracy of adjusting the sampling position of the sampling pipe 5 and to facilitate the staff to confirm the sampling position of the sampling pipe 5, the movable part 3 is also connected with a limiting part 31. The limiting part 31 is rod-shaped and extends to the outside of the housing 1. A plurality of limiting holes 311 are arranged at intervals in the length direction of the limiting part 31. A limiting rod 312 can be movably inserted into the limiting holes 311. After the limiting rod 312 is inserted into the corresponding limiting hole 311, when the movable part 3 moves until the limiting rod 312 abuts against the housing 1, the movement of the movable part 3 can be blocked, so that the sampling pipe 5 stops moving to the designated position and samples at this target position.

[0038] To facilitate observing the angle of rotation of the diversion pipe 4 relative to the housing 1, an observation window 11 is also provided at the outer end of the housing 1. The observation window 11 faces the outer end of the diversion pipe 4. For convenient observation, scales can be marked at the position where the diversion pipe 4 faces the observation window 11 so that the operator can confirm the rotation angle of the diversion pipe 4.

[0039] The driving assembly includes an air inlet part and an air inlet passage 22. The air inlet passage 22 is arranged in the connecting part 2. The air inlet passage 22 includes an annular passage and several straight passages. The annular passage is arranged on the outer ring of the connecting part 2. An air inlet hole is provided at the outer end of the side wall of the housing 1. The air inlet hole is communicated with the annular passage. The air inlet part passes gas into the annular passage through the air inlet hole or extracts gas through the air inlet. The air inlet part includes but is not limited to a micro vacuum pump or a small compressor. Each straight passage coincides with the radial direction of the connecting part 2. One side of each straight passage is communicated with the annular passage, and the other end of each straight passage is communicated with the inner side of the movable part 3. A cover body 32 is rotatably connected to the rear end of the movable part 3. The cover body 32 is used to block the gap between the inner end of the movable part 3 and the diversion pipe 4. After the air inlet part passes gas into the gap between the movable part 3 and the diversion pipe 4 through the air inlet passage 22, the pressure at the gap between the movable part 3 and the diversion pipe 4 gradually increases. The movable part 3 slides relative to the diversion pipe 4 under the action of the gas pressure. The diversion pipe 4 rotates under the action of the spiral groove 42 and the slider. The sampling pipe 5 slides along the connecting part 41 under the action of the guiding assembly and stops moving until the limiting rod 312 abuts against the housing 1.

[0040] As Figures 3 to 5 shown, a connecting pipe 61 is connected to the inner end of the movable part 3. A blocking rod is also fixed on the connecting part 41. The blocking rod penetrates through the cover body 32 and is slidably matched with the cover body 32. A blocking part is fixed to the outer end of the blocking rod. The blocking part is movably abutted against the air inlet end of the connecting pipe 61. The connecting pipe 61 is connected to the guiding part 6. The guiding part 6 is connected to the sampling pipe 5 through a guiding pipe 62. The connecting pipe 61 is communicated with the guiding pipe 62. The blocking assembly includes a blocking head 51 and a blocking block 52. The blocking head 51 is fixed to the inner end of the sampling pipe 5. A gap is left between the blocking head 51 and the inner end of the sampling pipe 5. The blocking head 51 does not affect the communication between the sampling pipe 5 and the outside. The blocking block 52 is slidably matched with the inner wall of the sampling pipe 5 at the inner end of the sampling pipe 5. The blocking block 52 is elastically connected to the sampling pipe 5. When the blocking block 52 abuts against the blocking head 51, the inner end of the sampling pipe 5 is blocked. When the blocking block 52 and the blocking head 51 are relatively separated, the oil liquid can enter the sampling pipe 5 through the gap between the blocking block 52 and the blocking head 51.

[0041] The plugging block 52 is cylindrical. The inner end of the sampling tube 5 is provided with an annular edge. The inner wall of the plugging block 52 abuts against the edge of the sampling tube 5. The diameter of the outer end of the plugging block 52 increases and fits against the inner wall of the sampling tube 5. An annular movable cavity is formed between the plugging block 52 and the inner wall of the sampling tube 5. An elastic member is provided in the movable cavity. The plugging block 52 fits against the plugging head 51 under the elastic force of the elastic member. The sampling tube 5 is provided with a first air inlet 521. The first air inlet 521 is movably connected to the inside of the movable cavity. The guiding tube 62 is communicated with the first air inlet 521. When the movable member 3 slides relative to the diversion tube 4, it will also drive the plugging portion of the plugging rod to disengage from the air inlet end of the connecting tube 61. The inside of the movable member 3 is communicated with the connecting tube 61 and the guiding tube 62. After the movable member 3 moves into place, the gas continuously introduced into the movable member 3 enters the movable cavity between the plugging block 52 and the sampling tube 5 through the connecting tube 61 and the guiding tube 62. The gas pressure in the movable cavity gradually increases. The plugging block 52 moves away from the plugging head 51 under the action of the gas pressure, overcoming the elastic force of the elastic member, so that the inner end of the sampling tube 5 is communicated with the outside, and the oil fluid smoothly enters the sampling tube 5. Then, the air inlet member is started to pump air to relieve the pressure in the movable cavity. The plugging block 52 resets under the action of the elastic member and abuts against the plugging head 51 again. The obtained test sample is temporarily stored in the sampling tube 5.

[0042] Since the oil fluid in the conveying pipeline is in a flowing state, to ensure the sampling accuracy, after the sample sampling is completed, the sampling tube 5 needs to be plugged in time to prevent the sample in the sampling tube 5 from communicating with the oil fluid at non-sampling positions in the conveying pipeline during the reset operation of the sampling tube 5. As the air pressure in the movable member 3 is restored, the movable member 3 gradually resets under the action of the spring and drives the sampling tube 5 to rotate in the reverse direction. Under the action of the guiding assembly, the sampling tube 5 slides in the reverse direction relative to the connecting portion 41 and resets. After the sampling tube 5 is communicated with the guiding tube 62, the sample sealed in the sampling tube 5 enters the diversion tube 4. Then, the staff collects the sample flowing out of the diversion tube 4.

[0043] To ensure the plugging effect of the plugging assembly on the inner end of the sampling tube 5 and increase the fitting area between the plugging head 51 and the plugging block 52, the diameter of the plugging head 51 decreases from the inside to the outside, and the outer end of the plugging block 52 is an arc surface matching the plugging head 51.

[0044] To ensure that the sampling tube 5 moves to the sampling point in a sealed state, the coefficient of the elastic member provided in the sampling tube 5 is greater than the coefficient of the spring in the movable member 3. The gas filled by the air inlet member first pushes the movable member 3 to slide. After the sliding of the movable member 3 stops, continuously filling a sufficient amount of gas will overcome the elastic force of the elastic member in the sampling tube 5 and open the sampling tube 5.

[0045] To ensure that the sample in the sampling tube 5 can flow out and be collected fully, so that there is a sufficient amount of sample for testing during the detection process, and also reduce the residue of the sample in the sampling tube 5 and the diversion tube 4, the sampling tube 5 is provided with a second air inlet 522. A ring-shaped air inlet cavity 523 is provided at the part where the rear end of the plug block 52 abuts against the inner wall of the sampling tube 5. The second air inlet 522 is movably communicated with the air inlet cavity 523. The plug block 52 is fixed with a lever 53. A stop lever 411 is provided on the connecting part 41. When the sampling tube 5 is communicated with the diversion tube 4, the lever 53 abuts against the stop lever 411 and drives the plug block 52 to rotate relative to the sampling tube 5 until the second air inlet 522 is communicated with the air inlet cavity 523 on the plug block 52. The plug block 52 is also provided with a shielding piece 525. When the plug block 52 rotates, the shielding piece 525 blocks the first air inlet 521 at the same time. The connecting pipe 61 is also connected with an air inlet pipe 63. The air inlet pipe 63 is communicated with the second air inlet 522. After the sample in the sampling tube 5 flows out, the air inlet member continues to introduce gas into the movable member 3. After the movable member 3 moves until the connecting pipe 61 is misaligned with the blocking part, the gas in the movable member 3 enters the air inlet pipe 63 through the connecting pipe 61 and further enters the air inlet cavity 523. A plurality of air outlet ports 524 are annularly arranged at the outer end of the plug block 52. Each air outlet port 524 is communicated with the air inlet cavity 523. The gas in the air inlet cavity 523 is ejected through each air outlet port 524. The residual oil in the sampling tube 5 and the diversion tube 4 continues to flow out under the action of the air flow, reducing the residue of the oil in the sampling tube 5 and the diversion tube 4. After the lever 53 is separated from the stop lever 411, the lever 53 resets under the elastic force of the elastic member, the second air inlet 522 is misaligned with the air inlet pipe 63, and the first air inlet 521 is communicated with the guiding pipe 62 again.

[0046] The automatic sampling device for edible oil production provided by the present invention can be used to sample the oil at different positions in the conveying pipeline, improving the reliability of the evaluation result of the oil quality in the conveying pipeline.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic sampling device for edible oil production, comprising a housing (1), one end of the housing (1) being detachably connected to a sampling point, with the side facing the sampling point being the inner side, characterized in that, The sampling device further includes a diversion pipe (4), a sampling pipe (5) and an adjustment mechanism. The inner end of the diversion pipe (4) is provided with a connection part (41). The sampling pipe (5) is slidably matched with the connection part (41). The adjustment mechanism includes a connecting piece (2), a movable piece (3), a driving assembly and a guiding assembly; The movable piece (3) is sleeved outside the diversion pipe (4). A spiral groove (42) is provided on the outside of the diversion pipe (4). The movable piece (3) is slidably matched with the spiral groove (42). The inner end of the movable piece (3) is rotatably connected with a cover body (32). The cover body (32) seals the gap between the movable piece (3) and the diversion pipe (4). The connecting piece (2) is sleeved outside the movable piece (3). The movable piece (3) is slidably matched with the connecting piece (2) and elastically connected. The driving assembly drives the movable piece (3) to slide relative to the connecting piece (2). The outer end of the movable piece (3) is further connected with a limiting part (31). The limiting part (31) is used to limit the relative sliding range between the movable piece (3) and the connecting piece (2); The guiding assembly includes a guiding piece (6) and a guiding groove (21). The guiding groove (21) is arranged in a spiral shape on the connecting piece (2). The guiding piece (6) is slidably matched with the guiding groove (21). The guiding piece (6) is fixed relative to the sampling pipe (5). The inner end of the sampling pipe (5) is further provided with a blocking assembly for actively blocking the sampling pipe (5).

2. The automatic sampling device for edible oil production according to claim 1, wherein The blocking assembly includes a blocking head (51) and a blocking block (52). The blocking head (51) is fixed relative to the inner end of the sampling pipe (5). The blocking block (52) is slidably matched with the inner wall of the sampling pipe (5) at the inner end of the sampling pipe (5) and elastically connected. The blocking block (52) is in active abutment with the blocking head (51).

3. The automatic sampling device for edible oil production according to claim 2, characterized in that, The driving assembly includes an air inlet piece and an air inlet channel (22). The air inlet channel (22) is arranged inside the connecting piece (2). The air inlet channel (22) communicates with the front end of the movable piece (3). The air inlet piece is connected with the air inlet channel (22). The inner end of the movable piece (3) is connected with a connecting pipe (61). The connecting pipe (61) is connected with the guiding piece (6). The guiding piece (6) is connected with the sampling pipe (5) through a guiding pipe (62). The connecting pipe (61) communicates with the guiding pipe (62). The guiding pipe (62) is movably communicated with the sampling pipe (5) and is used to push the blocking block (52) to slide.

4. The automatic sampling device for edible oil production according to claim 3, wherein, An annular movable cavity is formed between the blocking block (52) and the inner wall of the sampling pipe (5). An air inlet one (521) is provided at the inner end of the sampling pipe (5). The guiding pipe (62) communicates with the air inlet one (521). The air inlet one (521) is movably docked with the movable cavity. The blocking block (52) and the sampling pipe (5) are connected through an elastic member. The elastic member is arranged in the movable cavity.

5. The automatic sampling device for edible oil production according to claim 3, wherein, An air inlet two (522) is provided on the sampling pipe (5), an annular air inlet cavity (523) is provided on the plugging block (52), several air outlet ports (524) communicating with the air inlet cavity (523) are further provided on the outer end of the plugging block (52), the air inlet two (522) is movably communicated with the air inlet cavity (523), a lever (53) is fixed on the plugging block (52), a stop lever (411) is provided on the connecting part (41), when the sampling pipe (5) is communicated with the diversion pipe (4), the lever (53) abuts against the stop lever (411), and the air inlet two (522) is communicated with the air inlet cavity (523), the connecting pipe (61) is further connected with an air inlet pipe (63), and the air inlet pipe (63) is communicated with the air inlet two (522).

6. The automatic sampling device for edible oil production according to claim 3, wherein, The diameter of the plugging head (51) decreases from inside to outside, and the outer end of the plugging block (52) is an arc surface matching the plugging head (51).

7. The automatic sampling device for edible oil production according to claim 3, characterized in that, A plugging rod is further fixed on the connecting part (41), the plugging rod penetrates through the cover body (32) and is in sliding fit with the cover body (32), a plugging part is fixed at the outer end of the plugging rod, and the plugging part is movably abutted against the air inlet end of the connecting pipe (61).

8. The automatic sampling device for edible oil production according to claim 1, wherein The limiting part (31) is rod-shaped, the limiting part (31) extends to the outside of the shell (1), several limiting holes (311) are provided on the limiting part (31), and limiting rods (312) are in plugging fit with the limiting holes (311).

9. The automatic sampling device for edible oil production according to claim 1, characterized in that, An observation window (11) is further provided at the outer end of the shell (1), and the observation window (11) is opposite to the outer end of the diversion pipe (4).

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