Rice quality sampler and sampling mechanism thereof

Abstract

The utility model discloses a rice quality sampler and a sampling mechanism thereof. The rice quality sampler comprises a single-tube sampling tube, a movable pressure plate; a drainage tube; an air valve; a material conveying hose; a valve body interface; a valve connection; a ventilation groove; a breather valve; the air valve is characterized in that an assembly capable of adjusting airflow is arranged, a movable pressure plate is arranged at a pipe opening and used for adjusting opening and closing of the pipe opening, and after the air valve is closed, the movable pressure plate can be opened along a pipeline through pressure. By means of the linkage device, only needed sampling point positions can be sampled independently, and accuracy and authenticity of sampling are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of sampling equipment, in particular to a rice quality sampling machine and a sampling mechanism thereof. Background Art

[0002] A grain sampler is a device used to collect grain samples. The working principle of a grain sampler is usually that after the sampling point is determined, the sampler's bracket lowers the sampling rod to take the sample, and then turns on the fan. The sample is sucked into a sealed container through a conveying hose and waits for subsequent processing. This equipment is widely used in quality inspection, trade, warehouse management and other fields.

[0003] The grain sampling rod is a sampling device for bulk grain uncovered transport vehicles and bagged grain on vehicles. Based on the sampling machines currently produced on the market, the fan is first turned on during the sampling process, and then the sampling rod is lowered to the grain surface. The grain sampling rod keeps sampling during the descent of the sampling rod. The material obtained in this way is often mixed with some unnecessary sample points, making the sampling inaccurate, reflecting the unreality of material sampling. Similarly, the samples are not easy to distinguish. Utility Model Content

[0004] The main purpose of the utility model is to provide a sampling machine and a sampling mechanism thereof, which are improved on the basis of the original sampling so that the sampling has sampling authenticity.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A rice quality sampling machine, comprising:

[0007] A single-tube sampling tube, wherein a movable pressure plate is installed at the tube mouth of the single-tube sampling tube, and the single-tube sampling tube is cylindrical as a whole;

[0008] The movable pressure plate is located at the bottom end of the single-tube sampling tube;

[0009] A drainage tube, the drainage tube is located above the single-tube sampling tube, one end of the drainage tube is embedded in the top of the single-tube sampling tube, and the connection between the drainage tube and the single-tube sampling tube is fixed to the outer surface of the interface through a sealing connector;

[0010] An air valve, the air valve being installed on the outer surface of the drainage tube;

[0011] A material delivery hose, one end of which is connected to the material delivery port of the drainage pipe.

[0012] Furthermore, it also includes:

[0013] A valve body interface, the valve body interface is arranged on the valve connector, and the valve body interface is threadedly connected to the air valve;

[0014] The valve connecting piece is located at the connection between the drainage tube and the air valve.

[0015] Furthermore, it also includes:

[0016] A ventilation groove, which is arc-shaped and is opened on both sides of the bottom end of the single-tube sampling tube;

[0017] A vent valve is installed on the upper and lower sides of the vent groove.

[0018] The tube opening of the single-tube sampling tube is an oblique cut.

[0019] The arc diameter of the air permeable groove is 0.4 mm.

[0020] The air valve is a check valve.

[0021] Compared with the prior art, the beneficial effects of this new patent are:

[0022] The utility model adds an air valve to control the airflow of the fan, and also sets a matching ventilation device to prevent the pipe body from being over-pressured, and sets a movable pressure plate at the pipe mouth to adjust the opening and closing of the pipe mouth. When the air valve is closed, the pressure will open the movable pressure plate along the pipe. Through such a linkage device, only the required position can be sampled separately, ensuring the accuracy and authenticity of the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall appearance of the conveyor belt of the present utility model.

[0024] Figure 2 It is a side structure display diagram of the utility model.

[0025] Figure 3 for Figure 2 A magnified view of the center.

[0026] Among them: 1. Single-tube sampling tube; 2. Movable pressure plate; 3. Drainage tube; 4. Air valve; 5. Feed hose; 6. Valve body interface; 7. Valve connector; 8. Breathing groove; 9. Breathing valve; DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments of the utility model are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description clearly, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] like Figure 1-3 As shown, a rice quality sampling machine and its sampling mechanism include: a single-tube sampling tube 1; an active pressure plate 2; a drainage tube 3; an air valve 4; a feed hose 5; a valve body interface 6; a valve connector 7; a venting groove 8; and a venting valve 9; an active pressure plate 2 is installed at the tube mouth of the single-tube sampling tube 1, and the single-tube sampling tube 1 is cylindrical as a whole; the active pressure plate 2 is located at the bottom end of the single-tube sampling tube 1; the drainage tube 3 is located above the single-tube sampling tube 1, one end of the drainage tube 3 is embedded in the top of the single-tube sampling tube 1, and the connection between the drainage tube 3 and the single-tube sampling tube 1 is fixed to the outer surface of the interface through a sealing connector, and one end of the feed hose 5 is connected to the feed port of the drainage tube 3; the single-tube sampling tube 1, the drainage tube 3, and the feed hose 5 are connected to each other, and when the fan is started, it can ensure that the airflow pressure reaches the active pressure plate 2 directly.

[0030] Preferably, in order to control the airflow in the pipeline, an air valve 4 is designed, which is installed on the valve body interface on the outer surface of the drainage tube 3, and the valve body interface 6 is arranged on the valve connector, and the valve body interface 6 is threadedly connected with the air valve 4; the valve connector 7 is located at the connection between the drainage tube 3 and the air valve 4. The air valve 4 can block the airflow generated by starting the fan, and the airflow will flow after the valve is closed, so that the valve can control the airflow in the pipeline.

[0031] In this embodiment, Figure 3 In order to prevent the pressure in the single-tube sampling tube 1 from being too high, the movable pressure plate 2 is opened in advance, and a venting groove 8 and a venting valve 9 are arranged near the tube mouth to adjust the pressure of the tube body. At the same time, the setting of the venting device can control the pressure inside and outside the tube body to keep it within a safe range, thereby preventing the tube body from rupturing.

[0032] It is worth noting that since the air permeable groove 8 is in a "U" shape and the resistance of the sampling rod is upward, a small amount of material can be prevented from entering the sampling rod through the air permeable groove during the descending process.

[0033] In this embodiment, during the descent of the sampling rod, since the tube mouth of the single-tube sampling tube 1 is beveled, the force point during the descent is the beveled top end, and the beveled top end is subjected to greater force, and the movable pressure plate 2 installed on the beveled surface will be subjected to less force. In this way, the movable pressure plate 2 is prevented from being opened by foreign objects during the descent.

[0034] It is worth noting that since the air valve 4 is located at a higher position of the sampling machine, it is not convenient to switch it manually. Therefore, connecting the air valve 4 to the external controller of the sampling machine itself through a control line is more convenient for system control.

[0035] The specific operating principle is as follows: the external controller system of the sampling machine locates the sampling position, starts the fan, and the sampling rod will be slowly lowered by the frame. Since the feed pipe mouth is blocked by the movable pressure plate 2, the sampling rod will not enter the material during the descent process. When the sampling starts without sampling, the air switch is turned on and the sampling tube descends. The movable pressure plate 2 at the head of the sampling tube is tightly attached to the sampling tube. When it reaches the sampling point, the external controller closes the air valve 4. The movable pressure plate 2 opens under a large negative pressure, and the material at the sampling point enters the sampling rod to achieve the purpose of fixed-point sampling.

[0036] It is worth noting that the "air valve, fan, ventilation valve, external controller" mentioned in the description of the utility model are all existing technical products with mature process technology. Therefore, their specific working principles will not be elaborated here.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A rice quality sampling machine, characterized in that: include: A single-tube sampling tube (1), wherein a movable pressure plate (2) is installed at the tube mouth of the single-tube sampling tube (1); The movable pressure plate (2) is located at the bottom end of the single-tube sampling tube (1); A drainage tube (3), the drainage tube (3) being located above the single-tube sampling tube (1), one end of the drainage tube (3) being embedded in the top of the single-tube sampling tube (1), and the connection between the drainage tube (3) and the single-tube sampling tube (1) being fixed to the outer surface of the interface via a sealing connector; An air valve (4), the air valve (4) being mounted on the outer surface of the drainage tube (3); A material delivery hose (5), one end of which is connected to the material delivery port of the drainage pipe (3).

2. The rice quality sampling machine according to claim 1, characterized in that: Also includes: A valve body interface (6), wherein the valve body interface (6) is arranged on the valve connecting member (7), and the valve body interface (6) is threadedly connected to the air valve (4); The valve connecting piece (7) is located at the connection between the drainage tube (3) and the air valve (4).

3. The rice quality sampling machine according to claim 2, characterized in that: Also includes: A ventilation groove (8), the ventilation groove (8) is arc-shaped, and the ventilation groove (8) is arranged on both sides of the bottom end of the single-tube sampling tube (1); A vent valve (9), the vent valve (9) is installed on the upper and lower sides of the vent groove (8).

4. The rice quality sampling machine according to claim 1, characterized in that: The tube opening of the single-tube sampling tube (1) is an oblique cut.

5. The rice quality sampling machine according to claim 3, characterized in that: The arc diameter of the ventilation groove (8) is 0.4 mm.

6. The rice quality sampling machine according to claim 3, characterized in that: The air valve (4) is a check valve.

7. A sampling mechanism, comprising the sampling machine according to any one of claims 1 to 6.

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