Sampling device for milk detection

Abstract

The utility model discloses a sampling device for milk detection, which comprises a workbench, the top end of the workbench is provided with a material box, the top end of the workbench is provided with a pipe frame, the pipe frame is provided with a plurality of test tubes, a top frame is arranged above the workbench, and the bottom end of the top frame is symmetrically provided with two supporting columns. The supporting column is fixedly mounted at the top end of the workbench, a sampling assembly is mounted at the bottom end of the top frame and comprises a mounting plate arranged below the top frame, a rotating shaft is rotationally mounted in the middle of the mounting plate, and the top end of the rotating shaft is fixedly connected with an output shaft of a first motor; during working, the sampling cavities are formed in the stirring plates, the stirring plates are symmetrically mounted on the two sides of the rotating shaft, and before sampling, the rotating shaft rotates to drive the stirring plates to stir milk, so that components of the milk are uniform, precipitation is avoided, the sampling effect is improved, meanwhile, the positions of the stirring plates are adjusted along with the rotating shaft, and the sampling effect is improved. The sampling range is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of milk detection, in particular to a sampling device for milk detection. Background Art

[0002] According to the patent document with the authorization announcement number of "CN210893766U" and the invention name of "a sampling device for milk detection", the specification states: a sampling device for milk detection, wherein the milk liquid for detection is contained in a liquid cup, and is placed between the positioning plates for fixing, and a plurality of sampling test tubes are placed through the plug-in slots on the mounting table, and the motor is driven to rotate the screw rod, and the movable seat is moved along the guide rod on the screw rod through the threaded groove, and the movable seat is moved to the liquid cup, and the fixed plate is driven downward by the first electric push rod to drive the sampling component into the liquid cup for sampling, and the liquid taking port at the bottom of the liquid collecting tube contacts the milk liquid, and the piston plate is driven upward by the second electric push rod to suck the milk liquid into the internal storage of the liquid collecting tube, and the sampling component is moved to the top of the sampling test tube on the mounting table by the moving component, and the piston plate is driven downward by the second electric push rod to squeeze the milk liquid into the sampling test tube, so that a sample device of multiple tubes of milk can be obtained at one time, and the sampling efficiency is high, but the following defects still exist:

[0003] When the milk is placed inside the liquid cup, the internal substances may precipitate, and the precipitate is located at the bottom of the milk, making the sampling effect poor. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a sampling device for milk detection, which effectively solves the problem that the milk in the liquid cup may precipitate and the sampling effect is not good.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device for milk testing, comprising a workbench, a material box is installed on the top of the workbench, a tube rack is installed on the top of the workbench, a plurality of test tubes are installed on the tube rack, a top rack is provided above the workbench, two support columns are symmetrically installed at the bottom of the top rack, the support columns are fixedly installed at the top of the workbench, and a sampling assembly is installed at the bottom of the top rack;

[0006] The sampling assembly includes a mounting plate arranged below the top frame, a rotating shaft is rotatably mounted in the middle of the mounting plate, the top end of the rotating shaft is fixedly connected to the output shaft of the first motor, the first motor is fixedly mounted on the top end of the mounting plate, stirring plates are symmetrically mounted on both sides of the rotating shaft, sampling cavities are equidistantly provided inside the stirring plates, sampling nozzles are equidistantly mounted at the bottom end of the stirring plates, the sampling nozzles are connected to the bottom end of the sampling cavities, the sampling nozzles correspond to the test tubes one by one, a piston is movably mounted inside the sampling cavity, a pull rod is mounted on the top end of the piston, the top end of the pull rod passes through to the top of the stirring plate, a connecting plate is provided above the stirring plate, and the connecting plate is fixedly connected to the top end of each pull rod.

[0007] Preferably, connecting plates are symmetrically installed on both sides of the rotating shaft, the connecting plates are located above the connecting plates, a connecting rod is installed at the bottom end of the connecting plates, the bottom end of the connecting rod is fixedly connected to the top wall of the stirring plate, a first magnetic block is installed at the top end of the connecting plate, a first electromagnet is fixedly installed on the bottom wall of the connecting plate, the first electromagnet is magnetically connected to the first magnetic block, and a positioning assembly is installed on the outside of the connecting plate.

[0008] Preferably, a hanger is provided above the mounting plate, and cylinders are installed at the four corners of the bottom end of the hanger. The output end of the cylinder is fixedly connected to the mounting plate, and the top end of the hanger is slidably installed inside the sliding groove. The sliding groove is opened at the bottom end of the top frame, and a screw is rotatably installed inside the sliding groove. The screw is threadedly connected to the hanger, and one end of the screw is fixedly connected to the output shaft of the second motor. The second motor is fixedly installed at the end of the top frame.

[0009] Preferably, the positioning assembly includes a fixing ring sleeved on the outside of the rotating shaft, the fixing ring is coaxially arranged with the rotating shaft, the ends of the two connecting plates away from each other are fixedly connected to the inner wall of the fixing ring, and the top of the fixing ring is symmetrically provided with positioning grooves.

[0010] Preferably, the mounting plate is symmetrically provided with two rod grooves, the two rod grooves are respectively located above the two positioning grooves, two fixing cylinders are symmetrically installed on the top of the mounting plate, the two fixing cylinders are respectively connected with the two rod grooves, a movable plate is movably installed inside the fixing cylinder, a positioning rod is installed at the bottom end of the movable plate, and the bottom end of the positioning rod passes through the rod groove and is inserted into the positioning groove.

[0011] Preferably, a spring is installed at the top of the movable plate, the top of the spring is fixedly connected to the inner top wall of the fixed cylinder, a second magnetic block is installed at the top of the spring, a second electromagnet is installed at the top of the spring, and the second electromagnet is magnetically connected to the second magnetic block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] During operation, the sampling chamber is arranged inside the stirring plate, and the stirring plates are symmetrically installed on both sides of the rotating shaft. Before sampling, the rotating shaft rotates to drive the stirring plates to stir the milk, so that the components of the milk are uniform, precipitation is avoided, and the sampling effect is improved. At the same time, the position of the stirring plates is adjusted with the rotating shaft to expand the sampling range;

[0014] During operation, connecting plates are symmetrically installed on both sides of the rotating shaft, the connecting plates are fixedly connected to the fixing rings, and the positioning rods on the mounting plates are engaged with the positioning grooves on the fixing rings. After the sampling is completed, the positioning rods can be re-engaged in the positioning grooves, thereby positioning the stirring plate after sampling, making it convenient for the sampling nozzle to correspond to the test tube and facilitating material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 This is a schematic diagram of the structure of a sampling device for milk testing according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the sampling component of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the stirring plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the positioning component of the utility model.

[0021] In the figure: 1, workbench; 2, material box; 3, pipe rack; 4, test tube; 5, top rack; 6, support column; 7, sampling assembly; 701, mounting plate; 702, hanger; 703, cylinder; 704, rotating shaft; 705, first motor; 706, stirring plate; 707, connecting plate; 708, connecting rod; 709, sampling chamber; 710, sampling nozzle; 711, piston; 712, pull rod; 713, connecting plate; 714, first magnetic block; 715, first electromagnet; 716, screw; 717, second motor; 8, positioning assembly; 801, fixing ring; 802, positioning groove; 803, rod groove; 804, fixing cylinder; 805, movable plate; 806, positioning rod; 807, spring; 808, second magnetic block; 809, second electromagnet. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1, by Figure 1-4 The utility model relates to a sampling device for milk testing, comprising a workbench 1, a material box 2 is installed on the top of the workbench 1, a tube rack 3 is installed on the top of the workbench 1, a plurality of test tubes 4 are installed on the tube rack 3, a top rack 5 is provided above the workbench 1, two support columns 6 are symmetrically installed at the bottom end of the top rack 5, the support columns 6 are fixedly installed on the top of the workbench 1, and a sampling assembly 7 is installed at the bottom end of the top rack 5;

[0024] The sampling assembly 7 includes a mounting plate 701 disposed below the top frame 5, a rotating shaft 704 is rotatably mounted in the middle of the mounting plate 701, the top of the rotating shaft 704 is fixedly connected to the output shaft of the first motor 705, the first motor 705 is fixedly mounted on the top of the mounting plate 701, stirring plates 706 are symmetrically mounted on both sides of the rotating shaft 704, sampling cavities 709 are equidistantly provided inside the stirring plates 706, sampling nozzles 710 are equidistantly mounted at the bottom of the stirring plates 706, the sampling nozzles 710 are connected to the bottom of the sampling cavities 709, and the sampling nozzles 710 are connected to the test tube 4. Correspondingly, a piston 711 is movably installed inside the sampling chamber 709, and a pull rod 712 is installed on the top of the piston 711. The top of the pull rod 712 penetrates to the top of the stirring plate 706. A connecting plate 713 is provided above the stirring plate 706. The connecting plate 713 is fixedly connected to the top of each pull rod 712. Connecting plates 707 are symmetrically installed on both sides of the rotating shaft 704. The connecting plate 707 is located above the connecting plate 713. A connecting rod 708 is installed at the bottom end of the connecting plate 707. The bottom end of the connecting rod 708 is fixedly connected to the top wall of the stirring plate 706. The connecting plate 71 3 is installed with a first magnetic block 714 at the top, a first electromagnet 715 is fixedly installed on the bottom wall of the connecting plate 707, the first electromagnet 715 is magnetically connected to the first magnetic block 714, a positioning assembly 8 is installed on the outer side of the connecting plate 707, a hanger 702 is provided above the mounting plate 701, cylinders 703 are installed at the four corners of the bottom end of the hanger 702, the output end of the cylinder 703 is fixedly connected to the mounting plate 701, the top of the hanger 702 is slidably installed inside the sliding groove, the sliding groove is opened at the bottom end of the top frame 5, and a screw 71 is rotatably installed inside the sliding groove 6. The screw rod 716 is threadedly connected to the hanger 702, one end of the screw rod 716 is fixedly connected to the output shaft of the second motor 717, and the second motor 717 is fixedly installed at the end of the top frame 5. The sampling chamber 709 is arranged inside the stirring plate 706, and the stirring plates 706 are symmetrically installed on both sides of the rotating shaft 704. Before sampling, the rotating shaft 704 rotates to drive the stirring plates 706 to stir the milk, so that the various components of the milk are uniform, precipitation is avoided, and the sampling effect is improved. At the same time, the position of the stirring plate 706 is adjusted along with the rotating shaft 704 to expand the sampling range.

[0025] The positioning assembly 8 includes a fixing ring 801 sleeved on the outside of the rotating shaft 704, the fixing ring 801 and the rotating shaft 704 are coaxially arranged, the ends of the two connecting plates 707 that are away from each other are fixedly connected to the inner side wall of the fixing ring 801, the top of the fixing ring 801 is symmetrically provided with a positioning groove 802, the mounting plate 701 is symmetrically provided with two rod grooves 803, the two rod grooves 803 are respectively located above the two positioning grooves 802, the top of the mounting plate 701 is symmetrically provided with two fixing cylinders 804, the two fixing cylinders 804 are respectively connected with the two rod grooves 803, a movable plate 805 is movably installed inside the fixing cylinder 804, a positioning rod 806 is installed at the bottom end of the movable plate 805, and the bottom end of the positioning rod 806 passes through the rod groove 803 and is snapped into the positioning groove 8 02, a spring 807 is installed on the top of the movable plate 805, and the top of the spring 807 is fixedly connected to the inner top wall of the fixed cylinder 804, and a second magnetic block 808 is installed on the top of the spring 807, and a second electromagnet 809 is installed on the top of the spring 807, and the second electromagnet 809 is magnetically connected to the second magnetic block 808. Connecting plates 707 are symmetrically installed on both sides of the rotating shaft 704, and the connecting plates 707 are fixedly connected to the fixed ring 801, and the positioning rod 806 on the mounting plate 701 is clamped with the positioning groove 802 on the fixed ring 801. After the sampling is completed, the positioning rod 806 can be re-inserted into the positioning groove 802, thereby positioning the stirring plate 706 after sampling, which is convenient for the sampling nozzle 710 to correspond to the test tube 4 and convenient for discharging.

[0026] Working principle: When working, firstly, fill the milk into the material box 2, turn on the second motor 717, so that the screw 716 rotates, and since the screw 716 is threadedly connected with the hanger 702, the mounting plate 701 is driven to move horizontally to the top of the material box 2, and the output end of the cylinder 703 is controlled to move downward, so that the rotating shaft 704 and the stirring plate 706 enter the milk, and turn on the first motor 705 to rotate the rotating shaft 704, thereby driving the stirring plate 706 to rotate to stir the milk, improve the uniformity of the milk, and avoid the precipitation of substances in the milk;

[0027] After stirring, the first electromagnet 715 is energized to generate attraction to the first magnetic block 714, thereby pulling the connecting plate 713 to move upward, and then pulling the piston 711 to move upward, and then sucking the milk into each sampling cavity 709, which is convenient for sampling. Since the rotating shaft 704 can be rotated by the first motor 705, the position of the stirring plate 706 can be adjusted during sampling, and the sampling position can be adjusted;

[0028] Before the first motor 705 is turned on, the second electromagnet 809 is controlled to be energized to generate an attraction force on the second magnetic block 808, driving the positioning rod 806 to move upward and disengage from the positioning groove 802. At this time, the rotating shaft 704 can rotate. When the sampling is completed, the second electromagnet 809 is powered off, so that the positioning rod 806 moves back under the elastic force of the spring 807, so that the bottom end of the positioning rod 806 is in close contact with the top wall of the fixing ring 801. After the movable plate 805 is powered off, the fixing cylinder 804 continues to rotate one circle under the action of inertia. When the rotating shaft 704 rotates to the positioning groove 802 corresponding to the positioning rod 806, the positioning rod 806 is snapped into the positioning groove 802 under the elastic force of the spring 807, thereby facilitating the positioning of the stirring plate 706 and facilitating the milk sample to smoothly enter the test tube 4.

[0029] The output end of the control cylinder 703 is retracted, and the rotating shaft 704 and the stirring plate 706 are lifted out of the material box 2. The mounting plate 701 is moved to the top of the tube rack 3 by rotating the screw 716. The output end of the cylinder 703 is extended, so that each sampling nozzle 710 is inserted into the corresponding test tube 4. The first electromagnet 715 is supplied with reverse current to generate repulsive force on the first magnetic block 714, so that the piston 711 moves downward, pushing the milk sample into each test tube 4, and completing the sampling.

Claims

1. A sampling device for milk testing, comprising a workbench (1), characterized in that: A material box (2) is installed at the top of the workbench (1), a tube rack (3) is installed at the top of the workbench (1), a plurality of test tubes (4) are installed on the tube rack (3), a top rack (5) is provided above the workbench (1), two support columns (6) are symmetrically installed at the bottom of the top rack (5), the support columns (6) are fixedly installed at the top of the workbench (1), and a sampling assembly (7) is installed at the bottom of the top rack (5); The sampling assembly (7) comprises a mounting plate (701) arranged below the top frame (5), a rotating shaft (704) is rotatably mounted in the middle of the mounting plate (701), the top end of the rotating shaft (704) is fixedly connected to the output shaft of the first motor (705), the first motor (705) is fixedly mounted on the top end of the mounting plate (701), stirring plates (706) are symmetrically mounted on both sides of the rotating shaft (704), sampling cavities (709) are equidistantly provided inside the stirring plates (706), and the bottom ends of the stirring plates (706) are equidistantly provided with the sampling cavities (709). A sampling nozzle (710) is installed, and the sampling nozzle (710) is connected to the bottom end of the sampling chamber (709). The sampling nozzle (710) corresponds to the test tube (4) one by one. A piston (711) is movably installed inside the sampling chamber (709). A pull rod (712) is installed at the top of the piston (711). The top of the pull rod (712) extends to the top of the stirring plate (706). A connecting plate (713) is provided above the stirring plate (706). The connecting plate (713) is fixedly connected to the top of each pull rod (712).

2. A sampling device for milk testing according to claim 1, characterized in that: Connecting plates (707) are symmetrically mounted on both sides of the rotating shaft (704), the connecting plates (707) are located above the connecting plates (713), a connecting rod (708) is mounted on the bottom end of the connecting plates (707), the bottom end of the connecting rod (708) is fixedly connected to the top wall of the stirring plate (706), a first magnetic block (714) is mounted on the top end of the connecting plate (713), a first electromagnet (715) is fixedly mounted on the bottom wall of the connecting plate (707), the first electromagnet (715) is magnetically connected to the first magnetic block (714), and a positioning assembly (8) is mounted on the outer side of the connecting plate (707).

3. A sampling device for milk testing according to claim 1, characterized in that: A hanger (702) is provided above the mounting plate (701), and cylinders (703) are installed at the four corners of the bottom end of the hanger (702). The output end of the cylinder (703) is fixedly connected to the mounting plate (701). The top end of the hanger (702) is slidably installed inside a sliding groove, which is opened at the bottom end of the top frame (5). A screw rod (716) is rotatably installed inside the sliding groove. The screw rod (716) is threadedly connected to the hanger (702), and one end of the screw rod (716) is fixedly connected to the output shaft of a second motor (717). The second motor (717) is fixedly installed at the end of the top frame (5).

4. A sampling device for milk testing according to claim 2, characterized in that: The positioning assembly (8) comprises a fixing ring (801) sleeved on the outside of the rotating shaft (704); the fixing ring (801) and the rotating shaft (704) are coaxially arranged; the ends of the two connecting plates (707) that are away from each other are fixedly connected to the inner side wall of the fixing ring (801); and the top of the fixing ring (801) is symmetrically provided with positioning grooves (802).

5. A sampling device for milk testing according to claim 4, characterized in that: Two rod grooves (803) are symmetrically provided on the mounting plate (701), and the two rod grooves (803) are respectively located above the two positioning grooves (802). Two fixing cylinders (804) are symmetrically provided on the top of the mounting plate (701), and the two fixing cylinders (804) are respectively connected to the two rod grooves (803). A movable plate (805) is movably provided inside the fixing cylinder (804), and a positioning rod (806) is provided at the bottom end of the movable plate (805), and the bottom end of the positioning rod (806) passes through the rod groove (803) and is inserted into the inside of the positioning groove (802).

6. A sampling device for milk testing according to claim 5, characterized in that: A spring (807) is installed at the top of the movable plate (805), the top of the spring (807) is fixedly connected to the inner top wall of the fixed cylinder (804), the top of the spring (807) is installed with a second magnetic block (808), the top of the spring (807) is installed with a second electromagnet (809), and the second electromagnet (809) is magnetically connected to the second magnetic block (808).

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