A powder sample testing sampling device

Abstract

This utility model discloses a powder sample testing and sampling device, including a handle, a sampling tube fixed at the center of the bottom of the handle, and at least two vertically distributed powder inlets on the peripheral wall of the sampling tube. The inner cavity of the sampling tube is provided with a partition, which divides the inner cavity into independent powder collection chambers corresponding to the number of powder inlets. An arc-shaped, sheet-like collection shovel is provided outside the powder inlets, with one side of the collection shovel fixed to the peripheral wall of the sampling tube. A switch strip passes through the inner wall of the collection shovel and the outer wall of the sampling tube, with an opening on the switch strip corresponding to the position of the powder inlets. The bottom end of the switch strip passes through a limiting member at the bottom of the peripheral wall of the sampling tube, and the top end passes through the handle and is fixed to a connecting member. This utility model sets up vertically distributed independent powder collection chambers, enabling the simultaneous acquisition of powder samples of different depths in a single sampling action, avoiding interlayer powder disturbance caused by multiple operations, and achieving the effect of simultaneously acquiring and isolating powder layers of different depths in a single sampling action.

Description

Technical Field

[0001] This utility model relates to the field of powder sampling technology, specifically a powder sample testing and sampling device. Background Technology

[0002] In the field of powder sample testing, vertical stratified sampling of stacked powders is a key requirement for ensuring testing accuracy. Current technologies suffer from cross-contamination between upper and lower powder layers during sampling, requiring multiple sampling attempts to obtain samples from different depths. This is not only inefficient but also exacerbates interlayer powder disturbance due to repeated operations. Utility Model Content

[0003] The purpose of this invention is to provide a powder sample testing and sampling device, which has the advantage of simultaneously acquiring and isolating powder layers of different depths in a single sampling action, thus solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A powder sample testing and sampling device includes a handle, a sampling tube fixed at the center of the bottom of the handle, and at least two vertically distributed powder inlets on the peripheral wall of the sampling tube. The inner cavity of the sampling tube is provided with a partition, which divides the inner cavity into independent powder collection chambers corresponding to the number of powder inlets. An arc-shaped plate-shaped collection shovel is provided on the outside of the powder inlets, and one side of the collection shovel is fixed to the peripheral wall of the sampling tube. A switch strip passes through the inner wall of the collection shovel and the outer wall of the sampling tube. The switch strip has an opening corresponding to the position of the powder inlet. The bottom end of the switch strip passes through a limiting member at the bottom of the peripheral wall of the sampling tube, and the top end passes through the handle and is fixed to an abutment member.

[0006] Preferably, the upper part of the switch bar is provided with a limiting block, which is disposed on one side of the upper part of the switch bar.

[0007] Preferably, the longitudinal length of the collecting shovel is not less than the length of the powder inlet.

[0008] Preferably, the sampling tube has a conical head at its bottom end.

[0009] Preferably, there are at least two powder inlets that are vertically distributed.

[0010] Preferably, the switch bar is in close contact with the outer wall of the sampling tube.

[0011] Preferably, the handle is perpendicular to the axis of the sampling tube.

[0012] Preferably, the top of the handle is provided with a groove for receiving the abutment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention features vertically distributed independent powder collection chambers, enabling the simultaneous acquisition of powder samples from different depths in a single sampling action. This avoids disturbance between powder layers caused by multiple operations. The three-sided open arc-shaped collection shovel significantly improves powder collection efficiency during rotational sampling. Lateral openings prevent upper-layer powder from mixing into lower layers. A vertically movable switch bar allows for precise control of the powder collection chamber's sealed or open state, thus achieving the effect of simultaneously acquiring and isolating powder layers of different depths in a single sampling action. Attached Figure Description

[0015] Figure 1 This is the first axonometric view of the overall structure of this utility model;

[0016] Figure 2 This is a second axonometric view of the overall structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is an isometric drawing of the switch bar of this utility model;

[0019] Figure 5 This is a schematic diagram of the powder inlet of this utility model;

[0020] Figure 6 This is a cross-sectional view of the sampling tube of this utility model.

[0021] In the diagram: 1. Hand rod; 2. Sampling tube; 3. Conical head; 4. Powder inlet; 5. Partition; 6. Powder collection chamber; 7. Collection shovel; 8. Switch bar; 9. Opening; 10. Limiting component; 11. Abutting component; 12. Groove; 13. Limiting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To address the limitation of existing technologies in vertically stratified powder sampling, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-6 ;

[0024] A powder sample testing and sampling device includes a handle 1, a sampling tube 2 fixed at the center of the bottom of the handle 1, the sampling tube 2 being perpendicular to the axis of the handle 1 and arranged longitudinally, and a conical head 3 being provided at the bottom end of the sampling tube 2 to reduce the friction force on the sampling tube 2 when it is inserted into the powder, thus saving effort.

[0025] The sampling tube 2 has a powder inlet 4 on its peripheral wall. There are at least two powder inlets 4, which are vertically distributed and are connected to the inner cavity of the sampling tube 2. The inner cavity of the sampling tube 2 is provided with a partition 5, which divides the inner cavity into several independent powder collection chambers 6. Each powder collection chamber 6 corresponds to a powder inlet 4. The powder inlet 4 is located on the top side of the powder collection chamber 6. The powder falls into the powder collection chamber 6 through the powder inlet 4 until it gradually fills the powder collection chamber 6.

[0026] A collecting shovel 7 is provided on the outside of the powder inlet 4. The collecting shovel 7 has an arc-shaped sheet structure. One side of the collecting shovel 7 is fixed to the peripheral wall of the sampling tube 2. The collecting shovel 7 and the sampling tube 2 are open on three sides. The side opening is used to collect the powder when the sampling tube 2 is rotated. The upper and lower openings are used to facilitate the passage of powder when the sampling tube 2 is inserted into the powder, reduce friction, and prevent the powder in the upper part from being carried into the powder in the lower part, which would affect the accuracy of powder sampling. The longitudinal length of the collecting shovel 7 is not less than the length of the powder inlet 4 to increase the contact area with the powder when rotating, thereby improving the powder collection efficiency. When collecting powder, the sampling tube 2 is rotated by holding the handle 1. The direction of rotation is the direction of the opening of the collecting shovel 7. The powder flows through the powder inlet 4 and into the powder collection chamber 6 under the gathering action of the collecting shovel 7. After filling, the rotation is stopped and the sampling tube 2 is pulled out.

[0027] A switch bar 8 runs through the inner wall of the collecting shovel 7 and the outer wall of the sampling tube 2. The switch bar 8 fits tightly against the outer wall of the sampling tube 2 to ensure the airtightness of the powder collecting chamber 6 when it is closed. The switch bar 8 has the same number of openings 9 as the powder inlet 4 in the longitudinal direction. The position of each opening 9 corresponds to the position of the powder inlet 4.

[0028] The bottom end of the switch bar 8 is inserted into the limiting member 10 set at the bottom of the sampling tube 2. The top of the switch bar 8 is inserted through the handle 1 and fixedly connected to the abutment member 11. The switch bar 8 can only make vertical displacement under the limitation of the limiting member 10 and the handle 1. The top of the handle 1 is provided with a groove 12 for accommodating the abutment member 11, which makes it easy for the operator to press the handle 1 and the abutment member 11. A limiting block 13 is fixed on one side of the upper part of the switch bar 8, so that the switch bar 8 can only move within a limited distance. When the opening 9 is aligned with the powder inlet 4, the limiting block 13 just abuts against the handle 1 to ensure that the switch is in place.

[0029] Working principle: The operator holds the handle 1 and inserts the device vertically into the powder layer. The conical head 3 at the bottom of the sampling tube 2 helps reduce frictional resistance during insertion. After insertion, the operator rotates the handle 1 along the opening of the collecting shovel 7. During rotation, the arc-shaped collecting shovel 7, open on three sides, efficiently gathers the powder and allows it to flow into the inner cavity of the sampling tube 2 through the powder inlets 4 vertically distributed on the peripheral wall of the sampling tube 2. After entering the inner cavity, the powder falls into the independent powder collection chambers 6 formed by the partitions 5, and gradually fills the chambers.

[0030] After sampling, pull the device out vertically. If it is necessary to maintain the independent state of each layer of powder sample during transportation or transfer to prevent mixing, the abutment 11 can be pressed down. The abutment 11 drives the switch bar 8 fixed to it to move vertically downward. The switch bar 8 moves down so that its opening 9 is misaligned with the powder inlet 4. At this time, the switch bar 8 is in close contact with the outer wall of the sampling tube 2, closing the powder inlet 4, thereby closing the powder collection chamber 6. When it is necessary to open or load powder samples, lift the abutment 11 to move the switch bar 8 upward until the limit block 13 on it abuts the handle 1. At this time, the opening 9 is precisely aligned with the powder inlet 4, and the powder can enter freely.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A powder sample testing and sampling device, comprising a handle (1), characterized in that, The sampling tube (2) is fixed at the center of the bottom of the handle (1). The sampling tube (2) has at least two vertically distributed powder inlets (4) on its periphery. The inner cavity of the sampling tube (2) is provided with a partition (5), which divides the inner cavity into independent powder collection chambers (6) corresponding to the number of powder inlets (4). An arc-shaped sheet-like collection shovel (7) is provided on the outside of the powder inlet (4). One side of the collection shovel (7) is fixed to the periphery of the sampling tube (2). A switch strip (8) passes through the inner wall of the collection shovel (7) and the outer wall of the sampling tube (2). The switch strip (8) has an opening (9) corresponding to the position of the powder inlet (4). The bottom end of the switch strip (8) passes through the limiting member (10) at the bottom of the periphery of the sampling tube (2), and the top passes through the handle (1) and is fixed to the abutment member (11).

2. The powder sample testing and sampling device according to claim 1, characterized in that, The upper part of the switch bar (8) is provided with a limiting block (13), which is located on one side of the upper part of the switch bar (8).

3. The powder sample testing and sampling device according to claim 2, characterized in that, The longitudinal length of the collecting shovel (7) is not less than the length of the powder inlet (4).

4. The powder sample testing and sampling device according to claim 3, characterized in that, The sampling tube (2) is provided with a conical head (3) at the bottom end.

5. The powder sample testing and sampling device according to claim 4, characterized in that, The powder inlet (4) shall be provided in no fewer than two and shall be vertically distributed.

6. The powder sample testing and sampling device according to claim 5, characterized in that, The switch bar (8) is tightly fitted to the outer wall of the sampling tube (2).

7. The powder sample testing and sampling device according to claim 6, characterized in that, The handle (1) is perpendicular to the axis of the sampling tube (2).

8. The powder sample testing and sampling device according to claim 7, characterized in that, The top of the handle (1) is provided with a groove (12) for accommodating the abutment (11).

Images