Simple sampling device for sample division by quartering method

Abstract

The simple sampling device comprises a sampling barrel, a base plate is fixed to the bottom of the sampling barrel, a first sliding groove and a second sliding groove are formed in the base plate, the first sliding groove and the second sliding groove are arranged in a crossed mode along the diameter of the base plate to form a cross-shaped sliding groove, and the length of the first sliding groove and the length of the second sliding groove are equal to the length of the diameter of the base plate; a first sampling plate and a second sampling plate are arranged in a barrel body of the sampling barrel, the first sampling plate and the second sampling plate are arranged in a crossed mode to form a quartered sampling plate, the first sampling plate, the second sampling plate, the first sliding groove and the second sliding groove are equal in length, and the quartered sampling plate is connected with the crossed sliding groove in a sliding mode. The cylinder body is equally divided into four sample spaces by the quartered sampling plate; and a bracket is fixed at the bottom of the chassis. According to the utility model, materials such as building samples and the like can be completely quartered, the division efficiency is improved, and meanwhile, the divided samples can be quickly collected through the discharge hole, so that the device has very high application and popularization values.

Description

Technical Field

[0001] This utility model relates to a sampling device, specifically, to a simple sampling device for quartering samples. Background Technology

[0002] The so-called quartering method for sample selection involves stacking the sample into a cone shape, flattening it into a disc shape, then cutting it into four equal parts along the diameter, removing two opposite parts, mixing the remaining two parts, and repeating the above process until the required amount for the experiment is obtained.

[0003] Building samples are typically collected using a quartering method to test the performance, quality, safety, and compliance with design requirements and relevant standards of building materials. Chinese patent CN 220418946 U discloses a utility model patent for a "soil sample divider based on the quartering method." However, during sample collection, the presence of sand and gravel particles in the soil creates resistance to the cross-shaped wooden baffle, preventing it from moving downwards and thus hindering contact between the baffle and the base plate. Consequently, a portion of the building material sample on the wooden base plate cannot be evenly divided, which is a shortcoming of the existing technology. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a simple sampling device for quartering samples.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a simple sampling device for quartering sample reduction, including a sampling cylinder, a base plate fixed to the bottom of the sampling cylinder, the base plate being provided with a first groove and a second groove, the first groove and the second groove being arranged intersecting along the diameter of the base plate to form a cross-shaped groove, the first groove and the second groove being equal in length to the diameter of the base plate; a first sampling plate and a second sampling plate are provided inside the cylinder, the first sampling plate and the second sampling plate being arranged in a cross shape to form a quartering sampling plate, the lengths of the first sampling plate, the second sampling plate, the first groove and the second groove being equal, the quartering sampling plate being slidably connected to the cross-shaped groove, the quartering sampling plate dividing the cylinder into four equal sample spaces; a support is fixed to the bottom of the base plate.

[0006] A further improvement of this utility model is that the middle part of the first sampling plate and the second sampling plate is fixed to the sampling rod, and the middle part of the chassis is provided with a through hole that matches the sampling rod.

[0007] A further improvement of this utility model is that an upper limit plate is fixed on the sampling rod located on the upper part of the first sampling plate and the second sampling plate to limit the maximum displacement of the quarter sampling plate during its fall.

[0008] A further improvement of this utility model is that a lower limit plate is fixed on the sampling rod located at the lower part of the first sampling plate and the second sampling plate, which is used to limit the maximum displacement of the quarter sampling plate as it rises.

[0009] A further improvement of this invention is that the sampling rod extends away from the support, and the end of the sampling rod is fixed to the handle.

[0010] A further improvement of this utility model is that each sample space is provided with a discharge hole on the corresponding chassis, and a cork is installed in the discharge hole.

[0011] The beneficial effects of this utility model are as follows: This utility model avoids the phenomenon of uneven division caused by the sampling plate being obstructed by the sample and unable to contact the chassis in the prior art. Using this utility model, building samples and other materials can be completely divided into four equal parts, effectively reflecting the actual quality of the material and improving the efficiency of the reduction. At the same time, the reduced sample can be quickly collected through the discharge hole, which has strong application and promotion value. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 for Figure 1 Front view structural diagram;

[0014] Figure 3 for Figure 1 A top-view structural diagram;

[0015] Figure 4 for Figure 3 Schematic diagram of the sectional structure of the middle AA section;

[0016] Figure 5 A three-dimensional view of the sampling tube and support;

[0017] Figure 6 for Figure 5 Front view structural diagram;

[0018] Figure 7 for Figure 5 A top-view structural diagram;

[0019] Figure 8 This is a three-dimensional view of the quarter sampling plate and sampling rod.

[0020] In the figure, 1 is the sampling cylinder, 2 is the chassis, 21 is the discharge hole, 3 is the first chute, 4 is the second chute, 5 is the first sampling plate, 6 is the second sampling plate, 7 is the bracket, 8 is the sampling rod, 9 is the through hole, 10 is the upper limit plate, 11 is the lower limit plate, 12 is the handle, and 13 is the cork. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0022] like Figure 1-8 As shown, a simple sampling device for quartering samples includes a sampling cylinder 1, a base plate 2 fixed to the bottom of the sampling cylinder 1, a first groove 3 and a second groove 4 provided on the base plate 2, the first groove 3 and the second groove 4 being arranged intersecting along the diameter of the base plate 2 to form a cross-shaped groove, the first groove 3 and the second groove 4 being equal in length to the diameter of the base plate 2; a first sampling plate 5 and a second sampling plate 6 are provided inside the cylinder of the sampling cylinder 1, the first sampling plate 5 and the second sampling plate 6 being arranged intersecting in a cross shape to form a quartering sampling plate, the first sampling plate 5, the second sampling plate 6, the first groove 3 and the second groove 4 being equal in length, the quartering sampling plate being slidably connected to the cross-shaped groove, the quartering sampling plate dividing the cylinder into four equal sample spaces; a support 7 is fixed to the bottom of the base plate 2.

[0023] In this application, the quarter sampling plate can slide up and down in the cross-shaped groove. When the quarter sampling plate slides down until the top surface of the quarter sampling plate is flush with the top surface of the base, the building sample can be placed into the sampling tube 1. Then, the sampling tube is gently shaken to distribute the building sample evenly in the sampling tube. Finally, the quarter sampling plate is pulled upward to move upward in the groove, but it will not fall out of the groove. In this way, the quarter sampling plate can divide the building sample in the sampling tube into four equal parts.

[0024] In the prior art, when sampling building samples, the sampling plate is easily obstructed by the building sample, which prevents the sampling plate from contacting the chassis. However, the quarter sampling plate of this application can be pre-moved to the lower part of the chassis 2, and after the building sample is placed in, the quarter sampling plate is moved upward, which completely avoids the defects of the prior art and ensures that the quarter sampling plate can divide all the samples in the cylinder equally.

[0025] To facilitate operator control of the quarter sampling plate, the first sampling plate 5 and the second sampling plate 6 are fixed to the sampling rod 8 at their middle parts. The middle part of the chassis 2 is provided with a through hole 9 that matches the sampling rod 8. In this way, the operator only needs to grasp the sampling rod 8 to control the rise and fall of the quarter sampling plate. At the same time, the setting of the sampling rod 8 increases the overall stability of the quarter sampling plate and correspondingly improves the accuracy of the sampling results.

[0026] Since the quarter sampling plate is prone to detaching from the cross-shaped groove when descending, this application has fixed an upper limit plate 10 on the sampling rod 8 located above the first sampling plate 5 and the second sampling plate 6 to limit the maximum displacement of the quarter sampling plate during descent. When the quarter sampling plate moves downward, it can perfectly fit the cross-shaped groove and seal the cross-shaped groove until the upper limit plate 10 contacts the chassis 2 and stops moving.

[0027] Similarly, since the quarter sampling plate is prone to detaching from the cross-shaped chute when rising, this application has a lower limit plate 11 fixed on the sampling rod 8 located below the first sampling plate 5 and the second sampling plate 6 to limit the maximum displacement of the quarter sampling plate as it rises. The cross-shaped chute moves upward until the lower limit plate 11 contacts the bottom of the chassis 2 and then stops moving, thus completing the division of the building sample into four equal parts.

[0028] To improve sampling accuracy and reduce the volume occupied by the upper limit plate 10 and the lower limit plate 11, both the upper limit plate 10 and the lower limit plate 11 in this application are made of metal sheets with a thickness of about 3 mm. During installation, these metal sheets can be fixed to the sampling rod 8 by welding.

[0029] Furthermore, the sampling rod 8 extends away from the support 7, and the end of the sampling rod 8 is fixed to the handle 12, which further facilitates the operator's control of the quarter sampling plate.

[0030] Furthermore, in order to facilitate the removal of the divided samples, this application provides a discharge hole 21 on the chassis 2 corresponding to each sample space. A cork plug 13 is installed in the discharge hole 21. During the distribution of materials, the cork plug 13 is always in the discharge hole 21 and blocks the discharge hole 21. When it is necessary to discharge materials, the cork plug 13 can be removed from the discharge hole 21.

[0031] To facilitate material discharge, the discharge hole can be designed as a conical hole that is larger at the top and smaller at the bottom, while the cork is designed as a conical cylinder that is larger at the top and smaller at the bottom. The cork has consistent density and hardness, as well as good flexibility and elasticity, which can strictly seal the discharge port and make it easy to pull out the cork to achieve material discharge.

[0032] The working principle of this application is as follows: the operator holds the handle and controls the quarter sampling plate to move downward until the upper limit plate contacts the chassis. At this time, the building sample that needs to be divided equally is poured into the sampling tube, and the sampling tube is gently shaken to make the building sample evenly distributed in the sampling tube.

[0033] Then the operator holds the handle and controls the quarter sampling plate to move upward until the lower limit plate contacts the chassis. During the upward movement of the quarter sampling plate, the building sample in the sampling tube is divided into four equal parts.

[0034] Finally, the operator removes the corks corresponding to the two diagonally opposite building samples, places the collection container at the bottom of the discharge hole, and collects the two diagonally opposite samples. The collected samples are then divided into four equal parts by repeating the previous two steps until the required amount for the experiment is obtained.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple sampling device for quartering samples, characterized in that, The device includes a sampling cylinder with a base plate fixed to its bottom. The base plate has a first groove and a second groove, which are arranged intersecting along the diameter of the base plate to form a cross-shaped groove. Both the first groove and the second groove are equal in length to the diameter of the base plate. Inside the sampling cylinder, a first sampling plate and a second sampling plate are arranged in a cross shape to form a quarter sampling plate. The lengths of the first sampling plate, the second sampling plate, the first groove, and the second groove are all equal. The quarter sampling plate is slidably connected to the cross-shaped groove, dividing the cylinder into four equal sample spaces. A support is fixed to the bottom of the base plate.

2. The simplified sampling device for quartering samples according to claim 1, characterized in that, The middle of the first sampling plate and the second sampling plate is fixed to the sampling rod, and the middle of the chassis is provided with a through hole that matches the sampling rod.

3. The simplified sampling device for quartering samples according to claim 1 or 2, characterized in that, An upper limit plate is fixed on the sampling rod located on the upper part of the first sampling plate and the second sampling plate to limit the maximum displacement of the quarter sampling plate during its fall.

4. The simplified sampling device for quartering samples according to claim 3, characterized in that, A lower limit plate is fixed on the sampling rod located below the first sampling plate and the second sampling plate to limit the maximum displacement of the quarter sampling plate as it rises.

5. The simplified sampling device for quartering samples according to claim 2, characterized in that, The sampling rod extends away from the support, and the end of the sampling rod is fixed to the handle.

6. The simplified sampling device for quartering samples according to claim 1, characterized in that, Each sample space is equipped with a discharge hole on the corresponding chassis, and a cork is installed in the discharge hole.

Images