CN213121270U

CN213121270U - Powder sampler

Info

Publication number: CN213121270U
Application number: CN202021161732.6U
Authority: CN
Inventors: 杨建锋; 辛翔宇; 孙慧云
Original assignee: SHENZHEN SINUO INDUSTRIAL DEVELOPMENT CO LTD
Current assignee: Inner Mongolia snow New Material Technology Co.,Ltd.
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-05-04
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a powder sampler, which comprises an inner tube and an outer tube sleeved on the inner tube. The inner tube is equipped with three sampling chamber including being cylindric interior body, and interior introduction port has all been seted up to every sampling chamber, and three interior introduction port is the sharp setting. One end of the inner tube body is provided with a rotating rod, and the rotating rod is provided with an upper end opening communicated with a sampling chamber closest to the rotating rod. One end of the inner tube body, which is far away from the rotating rod, is provided with inner sample outlets which are staggered with the straight lines of the three inner sample inlets, and the inner sample outlets are communicated with the sampling chambers which are closest to the inner sample outlets. The outer tube comprises an outer tube body, the outer tube body is provided with outer sample inlets in one-to-one correspondence with the three inner sample inlets and outer sample outlets in correspondence with the inner sample outlets, and the outer sample outlets and the three outer sample inlets are arranged in a straight line. The utility model discloses a mutually independent business turn over of each layer sample has guaranteed the accurate collection to each sampling point sample, has satisfied the demand to collecting sample multiple spot, multilayer sample.

Description

Powder sampler

Technical Field

The utility model relates to a sampler technical field especially relates to a powder sampler.

Background

For production enterprises, timely detection of raw materials, semi-finished products and finished products is the most direct and effective method for ensuring product quality. This involves sampling problems. The sampling requirement is representative of the sample, which requires sampling at different locations of the same batch. However, if the samples are sampled one by one, the efficiency is too low, the timeliness of the data is affected, and errors are easy to occur.

Therefore, layered multipoint sampling is often used. However, the conventional stratified sampling device is composed of two iron pipes or stainless steel pipes which are tightly fitted, one side of the outer pipe is provided with a plurality of notches, and one side of the inner pipe is provided with a corresponding number of notches. During sampling, the inner pipe and the outer pipe are rotated by the handle to seal the notch, then materials are inserted, and the notch is opened by rotation; when the material is drawn out, the notch is closed, and the material is poured out to finish the operation. Although this method achieves multi-point sampling, the samples are all mixed together when being taken out, and the samples taken at each sampling port cannot be distinguished, so that the product quality condition of each part cannot be accurately known.

Accordingly, there is a need to provide a powder sampler to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a powder sampler aims at improving the problem that current stratified sampling ware can't distinguish the sample of getting every sample connection. The samples in and out of each layer are mutually independent, so that the accurate collection of the samples at each sampling point is ensured, and the requirements on multi-point and multi-layer sampling of the collected samples are met.

In order to achieve the above object, the present invention provides a powder sampler, comprising an inner tube and an outer tube sleeved on the inner tube;

the inner pipe comprises a cylindrical inner pipe body, the inner pipe body is provided with three sampling chambers, a partition plate is arranged between every two adjacent sampling chambers, each sampling chamber is provided with an inner sample inlet, and the three inner sample inlets are linearly arranged; a rotating rod is arranged at one end of the inner tube body, and an upper end opening communicated with the sampling chamber closest to the rotating rod is formed in the rotating rod; one end of the inner tube body, which is far away from the rotary rod, is provided with an inner sample outlet which is staggered with the straight line where the three inner sample inlets are positioned, and the inner sample outlet is communicated with the sampling chamber which is closest to the inner sample outlet;

the outer tube includes the outer body, the outer body set up with three interior introduction port one-to-one outer introduction port and with interior appearance mouth shape unanimous outer appearance mouth, outer appearance mouth and three outer introduction port is sharp setting.

In a preferred embodiment, the device further comprises a locking device; the locking device is sleeved between the sampling chamber of the inner pipe body and the rotating rod, and the pipe wall of the outer pipe body is provided with three buckles at equal angles; the locking device can be matched with any buckle to lock the relative position relationship of the inner pipe and the outer pipe.

In a preferred embodiment, the locking device comprises a fixing ring sleeved on the inner tube body, the fixing ring is provided with a fixing groove, and a return spring and a positioning rod are arranged in the fixing groove; one end of the reset spring is fixed on the bottom wall of the fixing groove, and the other end of the reset spring is connected with the positioning rod; and the reset spring enables one end of the positioning rod to be ejected out of the fixing groove to be matched and locked with the buckle.

In a preferred embodiment, the inner tube is recessed inwardly between the sampling chamber and the rotating rod to form a ring-shaped groove, and the fixing ring is fixed in the groove.

In a preferred embodiment, the end of the positioning rod remote from the return spring is in the shape of a smooth sphere.

In a preferred embodiment, an end of the inner tube remote from the rotary rod extends in a direction away from the rotary rod to form a conical element.

In a preferred embodiment, the conical head part of the conical piece is made of solid metal; the solid metal is flush with the surface of the inner sample outlet, which is close to the inner sample outlet.

In a preferred embodiment, the inner sample inlet and the outer sample inlet are both elliptical, and a straight line connecting the centers of the three inner sample inlets is coincident with the major axis of the ellipse of the inner sample inlet; the straight line connecting the three outer sample inlets is superposed with the ellipse long axis of the outer sample inlet.

In a preferred embodiment, the area of the inner sample inlet is larger than the area of the outer sample inlet.

In a preferred embodiment, the inner sample outlet and the outer sample outlet are identical in shape, and the area of the inner sample outlet is smaller than that of the outer sample outlet.

The utility model discloses a sample inlet is equipped with respectively in three sampling room. After the sampling of the inner tube body is finished, the outer tube body is rotated to seal the inner sample inlet, and a sample close to the rotary rod sampling chamber is poured out from an opening at the upper end; then the outer tube body is rotated to enable the inner sample outlet to be superposed with the outer sample outlet, the inner sample inlet is still in a state of being closed by the outer tube body, and a sample close to the sampling chamber of the inner sampling port is poured out through the inner sampling port; and finally, the outer pipe body is rotated to enable the inner sample inlet and the outer sample inlet to be coincided, and the samples of the rest sampling chambers are poured out, so that the samples of all layers can independently enter and exit, the samples of all sampling points can be accurately collected, and the requirements for collecting multi-point and multi-layer samples of the samples are met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

Fig. 1 is a front view of a powder sampler provided by the present invention;

FIG. 2 is an exploded front view of the inner tube and the outer tube of the powder sampler shown in FIG. 1;

FIG. 3 is a cross-sectional view of a locking device in the powder sampler of FIG. 1;

FIG. 4 is a schematic view of the powder sampler shown in FIG. 1, in which the outer tube is rotated to different positions of the inner tube;

reference numbers in the figures: 100. a powder sampler; 10. an inner tube; 20. an outer tube; 11. an inner tube body; 12. a sampling chamber; 13. a partition plate; 14. rotating the rod; 104. the upper end is open; 101. an inner sample inlet; 102. an inner sample outlet; 15. a conical member; 21. an outer tubular body; 201. an external sample inlet; 202. an outer sample outlet; 30. a locking device; 22. buckling; 103. a groove; 31. a fixing ring; 32. fixing grooves; 33. a return spring; 34. and (4) positioning the rod.

Detailed Description

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1 and 4, the present invention provides a powder sampler 100 for performing multi-point and multi-layer sampling and independent separation on powder material to be detected. The powder sampler 100 includes an inner tube 10 and an outer tube 20 sleeved on the inner tube. Wherein, the inner tube 10 and the outer tube 20 can be made of materials such as galvanized iron, stainless steel (201/304/316, etc.); the material can also be selected according to the characteristics of the extracted material, for example, a plastic material (such as PTFE plastic) with corrosion resistance can be selected for a material with strong corrosion. The inner tube 10 is a hollow cylinder, and the outer tube 20 is sleeved on the outer wall of the inner tube. The outer tube 20 can be rotated along the central axis of the inner tube 10 to change the relative positions of the outer tube 20 and the inner tube 10.

The inner tube 10 comprises a cylindrical inner tube body 11, the inner tube body 11 is provided with three cylindrical sampling chambers 12, and a partition plate 13 is arranged between every two adjacent sampling chambers 12 to ensure that samples taken by each sampling chamber 12 cannot be mixed. An inner sample inlet 101 is arranged on the pipe wall of the inner pipe body 11 of each sampling chamber 12. The inner sample inlet 101 may be a square hole or a circular hole, preferably an elliptical hole, and is disposed at the middle portion of the corresponding sampling chamber 12. The size of the inner sample inlet 101 is limited to correspond to one third of the sampling chamber 12, i.e. the inner sample inlet 101 occupies an angle of less than 120 ° in the cross-section of the sampling chamber 12. The three inner sample inlets 101 are arranged linearly, that is, the centers of the inner sample inlets 101 are located on the same straight line, when the inner sample inlets 101 are elliptical, the straight line coincides with the major axis of the ellipse, so that the outer tube 20 can easily close the inner sample inlets 101 of the inner tube 10 when rotating.

One end of the inner tube 11 is provided with a rotating rod 14, the rotating rod 14 is T-shaped, and one end of the rotating rod is fixed on the inner tube 11. The outer tube 20 is fixed during sampling, and then the rotating rod 14 is twisted to drive the inner tube 11 to rotate. The rotating rod 14 is provided with an upper end opening 104 communicated with the sampling chamber 12 closest to the rotating rod 14, namely, the upper end opening 104 is arranged at one end of the rotating rod 14 far away from the sampling chamber 12; that is, the upper opening 104 is opened at the intersection of the T-shape of the rotating rod 14 and is arranged in line with the three sampling chambers 12, so that the sample in the sampling chamber 12 closest to the rotating rod 14 can be poured out through the upper opening 104. One end of the inner tube body 11, which is far away from the rotating rod 14, is provided with an inner sample outlet 102 which is staggered with the straight line where the three inner sample inlets 101 are located, namely, the inner sample outlet 102 and the inner sample inlet 101 are not overlapped on the vertical projection of the inner tube body 11; that is, the cross section of the inner tube 11 can be divided into three sector parts with the same size, and the inner sample inlet 101 and the inner sample outlet 102 are respectively located in one of the sector parts, so that the outer tube 20 can independently close the inner sample inlet 101 and the inner sample outlet 102, and can also close the inner sample inlet 101 and the inner sample outlet 102 at the same time. In this embodiment, the inner outlet 102 is oval or drop-shaped and communicates with the sampling chamber 12 closest to the inner outlet 102. Thus, the sample in sampling chamber 12 closest to inner outlet 102 can be poured out of inner outlet 102.

Furthermore, one end of the inner tube 11, which is far away from the rotating rod 14, extends in a direction far away from the rotating rod 14 to form a conical element 15, that is, one end of the inner tube 11, which is far away from the rotating rod 14, is continuously folded to form a pointed conical head, so that the inner tube 11 can be inserted into a powder sample for sampling. Furthermore, the conical part of the conical member 15 is made of solid metal, and the solid metal is flush with the surface of the inner sample outlet 102 on the side close to each other.

In the present embodiment, the outer tube 20 includes a cylindrical outer tube body 21 having a hollow shape. The outer tube 21 has openings formed at both ends thereof and is fitted over the inner tube 11. The outer tube body 21 is provided with outer sample inlets 201 corresponding to the three inner sample inlets 101 in shape and position one by one, and outer sample outlets 202 corresponding to the inner sample outlets 102 in shape, that is, the shape and spacing distance of the outer sample inlets 201 are the same as those of the inner sample inlets 101. When the external sample inlet 201 is elliptical, the straight line connecting the three external sample inlets 201 coincides with the major axis of the ellipse of the external sample inlet 201. In addition, the outer sample outlet 202 and the inner sample outlet 102 have the same shape, and correspondingly, one end of the outer tube 21 is also provided with a taper-shaped structure, and the distance between the outer sample outlet 202 and the outer sample inlet 201 is the same as the distance between the inner sample inlet 101 and the inner sample outlet 102. Thus, rotating the rotation rod 14 can coincide the inner sample inlet 101 with the outer sample inlet 201. During sampling, the powder sample of the corresponding level enters the sampling chamber 12 of the corresponding level to complete sampling. Since the outer sample outlet 202 and the three outer sample inlets 201 are arranged in a straight line, when the inner sample inlet 101 and the outer sample inlet 201 are overlapped, the outer sample outlet 202 and the inner sample outlet 102 can be staggered and are both in a closed state.

Specifically, the area of the inner sample inlet 101 is larger than that of the outer sample inlet 201, so that when the inner sample inlet 101 coincides with the outer sample inlet 201, the powder sample firstly enters the inner sample inlet 101 through the outer sample inlet 201, and the phenomenon that the powder sample is adhered to the outer wall of the inner tube body 11 to affect the rotation of the inner tube body 11 when entering is avoided. The inner sample outlet 102 and the outer sample outlet 202 have the same shape, and the area of the inner sample outlet 102 is smaller than that of the outer sample outlet 202, so that when the inner sample outlet 102 and the outer sample outlet 202 are overlapped, the sample is prevented from remaining on the inner wall of the outer tube 21, and the phenomenon of material accumulation is avoided.

In the specific sampling process, the sampling steps are as follows:

first, as shown in the 4-2 part indicated in fig. 4, the rotating rod 14 is rotated to stagger the inner sample inlet 101 and the outer sample inlet 201, and the inner sample outlet 102 and the outer sample outlet 202, so that the inner tube 10 and the outer tube 20 are in a mutually closed state, and then the powder sampler 100 is inserted into a predetermined depth of the sample;

secondly, as shown in a part 4-1 indicated in fig. 4, the rotating rod 14 is rotated to make the inner sample inlet 101 coincide with the outer sample inlet 201, and the inner sample outlet 102 is staggered with the outer sample outlet 202; due to the fluidity of the powder material, the materials with different depths flow into the sampling chambers 12 of corresponding levels, and then the rotating rod 14 is rotated reversely to enable the inner tube 10 and the outer tube 20 to return to a mutually closed state again, so that the sampling is completed;

after sampling is complete, as indicated at 4-2 in FIG. 4, the sample from sampling chamber 12 closest to rotating rod 14 is poured through upper opening 104; at this time, the samples of the other two sampling chambers 12 are sealed in the corresponding sampling chambers 12; then, referring to the section 4-3 indicated in fig. 4, the rotating rod 14 is rotated to stagger the inner sample inlet 101 and the outer sample inlet 201, the inner sample outlet 102 is overlapped with the outer sample outlet 202, the sample of the sampling chamber 12 closest to the inner sample outlet 102 is poured out, and at this time, the sample of the middle sampling chamber 12 is also sealed in the corresponding sampling chamber 12; finally, referring to section 4-1 in FIG. 4, the rotation lever 14 is rotated to make the inner sample inlet 101 coincide with the outer sample inlet 201, and the inner sample outlet 102 is offset from the outer sample outlet 202, so as to pour out the sample in the middle sampling chamber 12.

Therefore, the utility model provides an among the powder sampler 100 sample that each layer sampling chamber 12 gathered pours the collection with different modes, and each layer sample business turn over is mutually independent, ensures not to have the possibility of mutual pollution.

Further, in one embodiment, as shown in fig. 1 and 3, powder sampler 100 further includes a locking device 30. The locking device 30 is sleeved between the sampling chamber 12 of the inner tube 11 and the rotating rod 14. The wall of the outer tube 21 is provided with three through-hole-shaped fasteners 22 at equal angles, and the locking device 30 can be matched with any one of the fasteners 22 to lock the relative position relationship between the inner tube 10 and the outer tube 20, that is, the locking of the locking device 30 and each fastener 22 corresponds to one state in the sampling step. It has three states in total: as shown in the 4-1 part indicated in fig. 4, firstly, the inner sample inlet 101 is overlapped with the outer sample inlet 201, and the inner sample outlet 102 is staggered with the outer sample outlet 202; as shown in part 4-2 of fig. 4, the inner sample inlet 101 is staggered with the outer sample inlet 201, and the inner sample outlet 102 is staggered with the outer sample outlet 202; third, as shown in the 4-3 part indicated in fig. 4, the inner sample inlet 101 and the outer sample inlet 201 are staggered, and the inner sample outlet 102 and the outer sample outlet 202 are overlapped. Therefore, the existence of the locking device 30 ensures that the rotation to each state in the sampling process is accurate and controllable, which is beneficial to ensuring the accuracy of sampling and standardizing the sampling operation.

Specifically, inner tube 11 is recessed inwardly between sampling chamber 12 and rotary rod 14 to form annular groove 103. The locking device 30 includes a fixing ring 31 sleeved on the inner tube 11. The fixing ring 31 is fixed in the groove 103 in a surrounding manner. The fixing ring 31 is formed with a fixing groove 32. A return spring 33 and a positioning rod 34 are arranged in the fixing groove 32. Wherein the length of the positioning rod 34 is less than the depth of the fixing groove 32. One end of the return spring 33 is fixed to the bottom wall of the fixing groove 32, and the other end is connected to the positioning rod 34, that is, the return spring 33 springs one end of the positioning rod 34 out of the fixing groove 32 and makes the other end of the positioning rod 34 in the fixing groove 32. Because the buckle 22 is arranged on the outer tube body 21, when the buckle 22 rotates to the position of the fixing groove 32, one end of the positioning rod 34 is inserted into the buckle 22 to be matched with the buckle 22 to lock the outer tube body 21, so that the relative position of the outer tube body 21 and the inner tube body 11 is fixed, and sampling is facilitated. When the relative position of the inner tube 10 and the outer tube 20 needs to be adjusted, the part of the positioning rod 34 exposed out of the buckle 22 is pressed to enable the positioning rod 34 to be contracted in the fixing groove 32, and unlocking is achieved. Further, the end of the positioning rod 34 away from the return spring 33 is in a smooth spherical shape, so as to be conveniently slid into the buckle 22.

To sum up, the utility model discloses a mutually independent business turn over of each layer sample has guaranteed the accurate collection to each sampling point sample, has satisfied the demand to collecting sample multiple spot, multilayer sample.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A powder sampler is characterized by comprising an inner pipe and an outer pipe sleeved on the inner pipe;

2. The powder sampler of claim 1, further comprising a locking device; the locking device is sleeved between the sampling chamber of the inner pipe body and the rotating rod, and the pipe wall of the outer pipe body is provided with three buckles at equal angles; the locking device can be matched with any buckle to lock the relative position relationship of the inner pipe and the outer pipe.

3. The powder sampler of claim 2, wherein the locking device comprises a fixing ring sleeved on the inner tube, the fixing ring is provided with a fixing groove, and a return spring and a positioning rod are arranged in the fixing groove; one end of the reset spring is fixed on the bottom wall of the fixing groove, and the other end of the reset spring is connected with the positioning rod; and the reset spring enables one end of the positioning rod to be ejected out of the fixing groove to be matched and locked with the buckle.

4. The powder sampler of claim 3, wherein the inner tube is recessed inwardly between the sampling chamber and the rotating rod to form a ring-shaped groove, and the fixing ring is fixed in the groove.

5. The powder sampler of claim 3, wherein an end of the positioning rod away from the return spring is smooth and spherical.

6. The powder sampler of claim 1, wherein an end of the inner tube, which is far away from the rotary rod, extends to form a conical element in a direction far away from the rotary rod.

7. The powder sampler of claim 6, wherein the conical part of the conical member is solid metal; the solid metal with interior appearance mouth surface parallel and level that is close to one side each other.

8. The powder sampler of claim 1, wherein the inner sample inlet and the outer sample inlet are both elliptical; the straight line connecting the centers of the three inner sample inlets coincides with the long ellipse axis of the inner sample inlet, and the straight line connecting the three outer sample inlets coincides with the long ellipse axis of the outer sample inlet.

9. The powder sampler of claim 8, wherein an area of the inner sample inlet is larger than an area of the outer sample inlet.

10. The powder sampler of claim 8, wherein the inner sample outlet is identical in shape to the outer sample outlet, and the area of the inner sample outlet is smaller than the area of the outer sample outlet.