Automatic depth sampler

Abstract

The utility model provides an automatic depth sampler, and belongs to the technical field of grain storage inspection equipment. The utility model provides the automatic depth sampler which is high in sampling accuracy. An automatic depth sampler comprises a sampler main body and a base, the sampler main body can move up and down along a rail vertically arranged on the base, the sampler main body comprises a support and a main shaft fixed on the support, and the central axis of the main shaft is vertically arranged in the moving direction of the sampler main body. The main shaft comprises an inner pipe and a pipe seat rotationally connected with the inner pipe, a sampling pipe communicated with the inner pipe is mounted at one end of the pipe seat, the sampling pipe, the inner pipe and the main shaft are positioned on the same axis, an auxiliary motor is arranged on the bracket, and when the sampler main body moves up and down, the auxiliary motor drives the sampling pipe to rotate through the pipe seat. The sampling pipe is driven by the auxiliary motor to rotate, so that the coaxiality of the sampling pipe is ensured, and the situation that accurate sampling cannot be performed due to deviation of the sampling pipe is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain storage inspection equipment, in particular to an automatic depth sampler for detecting the grain state at a target position. Background Art

[0002] During storage, grain is easily affected by humidity, temperature, pests and microorganisms, which causes the internal temperature of grain to rise during storage, leading to chain reactions such as condensation and mildew. In order to reduce the impact of the above problems, the warehouses used in modern grain depots can be divided into vertical silos and room-type warehouses according to their shapes. Taking room-type warehouses as an example, they use environmental control technology to ensure that the grain storage environment is always suitable, and according to the sampling standards and plans formulated by the state and the industry, the stored grain in the grain warehouse is inspected regularly, at fixed points and in fixed quantities to ensure the quality of the stored grain. Among them, the sampling step is called sampling, that is, using special instruments to randomly obtain suitable samples for inspection from a large amount of grain. However, as the grain storage increases, the depth of the granary is also increasing. Simply relying on manual pipe laying cannot meet the existing storage and sampling needs.

[0003] To solve the above problems, the prior art provides a grain silo depth sampling device, which obtains samples at the target position by connecting a sampling hose to an external sampler and extracting the air in the sampling tube to form a negative pressure. The sampling tube is pressed into the grain pile by the up and down movement of a pressing and pulling mechanism until it reaches a preset depth, thereby completing the sampling. However, during the sampling process, if the sampling tube is tilted or bent, it will deviate from the predetermined sampling point, causing the sample taken out to fail to meet the standard and is easily damaged during the insertion process. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems in the existing technology and propose an automatic depth sampling device. The technical problem to be solved by the utility model is: how to improve the accuracy of sampling.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an automatic depth sampler, comprising a sampler body and a base, the sampler body can move up and down along a track vertically arranged on the base, the sampler body comprises a bracket and a main shaft fixed on the bracket, the central axis of the main shaft is vertically arranged along the moving direction of the sampler body, and is characterized in that the main shaft comprises an inner tube and a tube seat rotatably connected to the inner tube, a sampling tube connected to the inner tube is installed at one end of the tube seat, the sampling tube, the inner tube and the main shaft are on the same axis, an auxiliary motor is provided on the bracket, and when the sampler body moves up and down, the auxiliary motor drives the sampling tube to rotate through the tube seat.

[0006] The present application is based on the original method of inserting the sampling tube into the stored grain by means of a pressing and pulling mechanism and completing the sampling by means of a sampler. In this application, the sampling hose and the sampling tube are respectively connected to the inner tube and the tube seat in the main shaft. By means of the rotational connection between the tube seat and the inner tube, while ensuring that the inner tube and the sampling tube are connected, the auxiliary motor can drive the sampling tube to rotate through the tube seat, and make the axes of the sampling tube and the inner tube coincide with the axis of the main shaft to ensure the rotation center, avoid the sampling tube from being offset during the vertical movement of the bracket, enable the sampling tube to reach the designated position, improve the accuracy of sampling, and reduce the damage of the sampling tube during the insertion or removal process by increasing the rigidity of the sampling tube during the downward insertion process, and reduce the contact area with the stored grain through rotation, thereby facilitating the removal of the sampling tube.

[0007] In the above automatic depth sampling device, a clamping mechanism is provided at the bottom of the base, the clamping mechanism is arranged perpendicular to the main axis, and the clamping claws of the clamping mechanism cooperate with the sampling tube. The sampling tube is clamped by the clamping claws in the clamping mechanism, and while ensuring that the sampling tube does not tilt during the insertion process, the clamping mechanism can also cooperate with the tube seat to complete the disassembly and installation of the sampling tube.

[0008] In the above-mentioned automatic depth sampling device, a lifting mechanism is provided on the base, and the lifting mechanism includes a lifting motor, a driving wheel and a driven wheel, and a synchronous belt or belt is rotatably connected between the driven wheel and the driving wheel, and a clamping plate is provided on the side of the bracket facing the lifting motor, and the clamping plate is clamped on the synchronous belt or belt. The lifting motor drives the driving wheel to rotate, and then drives the main shaft on the bracket to move up and down through the synchronous belt or belt and the clamping plate, and cooperates with the auxiliary motor to complete the insertion and extraction of the sampling tube.

[0009] In the above automatic depth sampling device, the bracket is provided with a lifting wheel, and the track is provided with an embedding groove, and the embedding groove matches the lifting wheel.

[0010] In the above-mentioned automatic depth sampler, a mounting platform is provided on the bracket, the main shaft and the auxiliary motor are arranged on the mounting platform, the mounting platform is also provided with a level bubble for correcting the position, and the mounting platform is arranged perpendicular to the central axis of the main shaft.

[0011] In the above automatic depth sampler, one end of the inner tube cooperates with the tube seat, and the other end is connected to the sampler through a sampling hose.

[0012] In the above automatic depth sampling device, there are a plurality of sampling tubes, and every two of the sampling tubes are connected by threads.

[0013] In the above automatic depth sampler, the inner tube includes a hollow fixed shaft, and the fixed shaft is rotatably connected to the tube seat via two bearings, and the bearings are two radial bearings arranged opposite to each other.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The auxiliary motor drives the sampling tube to rotate through the main shaft, and makes the sampling tube coincide with the central axis of the main shaft, thereby improving the structural rigidity of the sampling tube insertion during use and avoiding the deviation of the sampling tube during the insertion process.

[0016] 2. The clamping mechanism ensures that the axis of the sampling tube will not deviate, further improving the sampling stability. By clamping the sampling tube and rotating the main shaft, the installation and removal of the sampling tube can be completed, and additional sampling tubes can be installed to extend the length of the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is an exploded stereoscopic schematic diagram of the utility model;

[0019] Figure 3 It is a right side cross-sectional schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the main cross-sectional view of the utility model;

[0021] In the figure, 1, base; 1a, track; 1a1, embedded groove; 1b, clamping mechanism; 1b 1, clamping claw; 1b2, clamping motor 1c, lifting mechanism; 1c 1, driving wheel; 1c2, driven wheel; 1c3, synchronous belt; 1c4, tensioning wheel; 1c5, lifting motor 1d, electric box; 2, sampler body; 2a, bracket; 2a1, clamping plate; 2a2, mounting platform; 2a3, lifting wheel; 2b, main shaft; 2b 1, inner tube; 2b1a, pipe joint; 2b1b, fixed shaft; 2b2, pipe seat; 2b2a, connecting sleeve; 2b3, radial bearing; 2c, auxiliary motor; 2d, level bubble; 3, sampler tube; 4, sampler hose; 4a, sampler; DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] Embodiment 1

[0024] like Figure 1 and Figure 2As shown, the automatic depth sampler of the present application comprises a base 1 and two tracks 1a vertically arranged on the base 1, a clamping mechanism 1b and an electric box 1d are respectively arranged at the front and rear of the track 1a, a sampler body connected is arranged above the clamping mechanism 1b, the sampler body comprises a bracket 2a which can be slidably connected to the track 1a, a mounting platform 2a2 and a lifting wheel 2a3 cooperating with the track 1a are arranged on the bracket 2a, a main shaft 2b, an auxiliary motor 2c and a horizontal bubble 2d are installed on the mounting platform 2a2, the main shaft 2b is located in the middle of the mounting platform 2a2, the auxiliary motor 2c and the horizontal bubble 2d are respectively arranged on both sides of the main shaft 2b, and the auxiliary motor 2c can drive the main shaft 2b to rotate through a gear set, wherein a lifting mechanism 1c is arranged between the two vertically arranged tracks 1a, the lifting mechanism 1c comprises a lifting motor 1c5, a driving wheel 1c1, a driven wheel 1c2 and a synchronous belt 1c3, and a tensioning wheel 1c4 is arranged between the driving wheel 1c1 and the driven wheel 1c2.

[0025] In addition, Figure 2 As shown, a clamping plate 2a1 is provided on the side of the bracket 2a facing the lifting mechanism 1c. The clamping plate 2a1 is clamped and fixed on the synchronous belt 1c3, and drives the bracket 2a to move up and down when the lifting motor 1c5 rotates. The clamping mechanism 1b includes a clamping claw 1b1 located at the front end and a clamping motor 1b2. The clamping motor 1b2 drives the screw to rotate and then drives the clamping claw 1b1 to complete the clamping action.

[0026] like Figure 3 as well as Figure 4 As shown, the center line of the main shaft 2b in the present application is arranged perpendicularly to the base 1, and the main shaft 2b includes a tube seat 2b2 and an inner tube 2b1. A pipe joint 2b1a is provided at one end of the inner tube 2b1, and the other end cooperates with the connecting sleeve 2b2a on the tube seat 2b2. The front end of the connecting sleeve 2b2a is connected with the sampling tube 3 by bolts. In addition, the inner tube 2b1 and the tube seat 2b2 are rotatably connected by two oppositely arranged radial bearings 2b3, and the auxiliary motor 2c is rotatably connected to the tube seat 2b2 by gears, wherein the inner tube 2b1 and the sampling tube 3 are connected vertically, and the central axis of the main shaft 2b coincides with the central axis of the inner tube 2b1 and the sampling tube 3, and is perpendicular to the installation plane with the horizontal bubble 2d, and one end of the sampling hose 4 is connected to the pipe joint 2b1a, and the other end is connected to the sampler 4a.

[0027] The two sides of the bracket 2a are respectively provided with lifting wheel groups connected to the track 1a vertical to the base 1. Figure 4 As shown, the lifting wheel 2a3 group includes four lifting wheels 2a3, and two of them are respectively arranged on both sides of the track 1a. The main shaft 2b composed of the tube seat 2b2 and the inner tube 2b1 has its central axis perpendicular to the installation plane and the base 1, and parallel to the track 1a.

[0028] On the basis of the original pressing and pulling mechanism or manual pressing and pulling, the present application controls the rotation of the lifting motor 1c5 through the electric box 1d, and then utilizes the synchronous belt 1c3 clamping the clamping block to drive the sampler body 2 to move up and down along the embedded groove 1a1 on the guide rail to complete the insertion and extraction of the sampling tube 3. While the lifting mechanism 1c drives the bracket 2a on the sampler body 2 to move upward, the auxiliary motor 2c drives the sampling tube 3 vertically arranged with the base 1 to rotate through the tube seat 2b2 on the main shaft 2b, thereby improving the structural strength of the sampling tube 3 during the insertion and extraction process, avoiding the bending of the sampling tube 3 during the insertion process, resulting in the inability to accurately sample, and when the axis of the sampling tube 3 coincides with the axis of the main shaft 2b, by driving the sampling tube 3 to rotate, it is avoided that the sampling tube 3 is offset during the insertion process, resulting in the inability to obtain the sample of the target sampling point according to the standard, thereby improving the sampling stability.

[0029] In addition, the two sampling tubes 3 and the sampling tube 3 and the main shaft 2b are connected by threads. When an additional sampling tube 3 needs to be installed, the sampling tube 3 needs to be installed on the main shaft 2b, or the sampling tube 3 needs to be removed from the main shaft 2b, the sampling tube 3 is fixed by the clamping mechanism 1b, and the auxiliary motor 2c drives the main shaft 2b to rotate in the opposite direction of the thread, thereby completing the installation of the sampling tube 3 and reducing the difficulty of installation.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0031] Although this article frequently uses the terms 1. base; 1a. track; 1a1. groove; 1b. clamping mechanism; 1b1. clamping claw; 1b2. clamping motor 1c. lifting mechanism; 1c1. driving wheel; 1c2. driven wheel; 1c3. synchronous belt; 1c4. tensioning wheel; 1c5. lifting motor 1d. electric box; 2. sampler body; 2a. bracket; 2a1. clamping plate; 2a2. mounting platform; 2a3. lifting wheel; 2b. main shaft; 2b1. inner tube; 2b1a. pipe joint; 2b1b. fixed shaft; 2b2. tube seat; 2b2a. connecting sleeve; 2b3. radial bearing; 2c. auxiliary motor; 2d. level bubble; 3. sampling tube; 4. sampling hose; 4a. sampler, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as these terms are contrary to the spirit of the present invention.

Claims

1. An automatic depth sampler, comprising a sampler body (2) and a base (1), wherein the sampler body (2) can move up and down along a track (1a) vertically arranged on the base (1), wherein the sampler body (2) comprises a bracket (2a) and a main shaft (2b) fixed on the bracket (2a), wherein the central axis of the main shaft (2b) is vertically arranged along the moving direction of the sampler body (2), characterized in that: The main shaft (2b) comprises an inner tube (2b1) and a tube seat (2b2) ​​rotatably connected to the inner tube (2b1); a sampling tube (3) connected to the inner tube (2b1) is installed at one end of the tube seat (2b2); the sampling tube (3), the inner tube (2b1) and the main shaft (2b) are located on the same axis; an auxiliary motor (2c) is provided on the bracket (2a); when the sampler body (2) moves up and down, the auxiliary motor (2c) drives the sampling tube (3) to rotate through the tube seat (2b2).

2. The automatic depth sampler according to claim 1, characterized in that: A clamping mechanism (1b) is provided at the bottom of the base (1), the clamping mechanism (1b) is arranged perpendicular to the axis of the main shaft (2b), and the clamping claw (1b1) of the clamping mechanism (1b) is clamped on the sampling tube (3).

3. The automatic depth sampler according to claim 1 or 2, characterized in that: The base (1) is provided with a lifting mechanism (1c), the lifting mechanism (1c) comprising a lifting motor (1c5), a driving wheel (1c1) and a driven wheel (1c2), a synchronous belt (1c3) or a belt being rotatably connected between the driven wheel (1c2) and the driving wheel (1c1), and a clamping plate (2a1) is provided on the side of the bracket (2a) facing the lifting motor (1c5), and the clamping plate (2a1) is clamped on the synchronous belt (1c3) or the belt.

4. The automatic depth sampler according to claim 3, characterized in that: The bracket (2a) is provided with a lifting wheel (2a3), and the track (1a) is provided with an embedding groove (1a1), and the embedding groove (1a1) matches with the lifting wheel (2a3).

5. The automatic depth sampler according to claim 1, characterized in that: The bracket (2a) is provided with a mounting platform (2a2), the main shaft (2b) and the auxiliary motor (2c) are arranged on the mounting platform (2a2), the mounting platform (2a2) is also provided with a level bubble (2d) for correcting the position, and the mounting platform (2a2) is arranged perpendicular to the central axis of the main shaft (2b).

6. The automatic depth sampler according to claim 1, characterized in that: One end of the inner tube (2b1) is matched with the tube seat (2b2), and the other end is connected to the sampler (4a) through a hose (4).

7. The automatic depth sampler according to claim 1, characterized in that: There are a plurality of sampling tubes (3), and every two of the sampling tubes (3) are connected via threads.

8. The automatic depth sampler according to claim 1, characterized in that: The inner tube (2b1) comprises a hollow fixed shaft (2b1b), and the fixed shaft (2b1b) is rotatably connected to the tube seat (2b2) ​​via two bearings, wherein the bearings are two radial bearings (2b3) arranged opposite to each other.

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