Powder sampling device capable of sampling layer by layer

Abstract

The utility model discloses a powder sampling device capable of stratified sampling, which comprises an inner cylinder and an outer cylinder rotatably sleeved on the inner cylinder, a plurality of partition plates are arranged inside the inner cylinder, sampling cavities are formed between adjacent partition plates, a plurality of sampling ports are arranged on the outer side wall of the inner cylinder, each sampling port corresponds to one sampling cavity, and the sampling cavities are arranged on the outer side wall of the inner cylinder. At least one powder digging tooth is arranged on the left side edge or the right side edge of each sampling opening, a window for exposing all the sampling openings is formed in the outer cylinder, and a cover plate part capable of closing all the sampling openings and shielding all the powder digging teeth is further arranged on the outer cylinder. With the adoption of the design, the whole structure is simple and compact, the production cost is low, stratified sampling can be realized, and due to the existence of the powder digging teeth, the device is also suitable for pressed powder which is relatively compact and poor in flowability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic powder's detection, especially to a layered sampling powder sampling device. BACKGROUND

[0002] Sampling is a basic operation in the field of chemical powder inspection, and the convenience of sampling operation directly affects the sampling quality and cost. Traditional single sampling barrel cannot be used for multi-layer sampling, and cannot adapt to various sampling environments, resulting in great resource waste.

[0003] To solve the above problems, some devices that can sample powder in layers have appeared on the market, such as the layered quantitative powder sampler disclosed in patent CN217688061U. This device has the following problems: the overall structure is complex, the production and assembly cost is high, and it is not convenient to disassemble and clean each component. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a powder sampling device that is simple and compact in structure and can sample in layers.

[0005] The utility model adopts the technical scheme to solve the technical problem:

[0006] A layered sampling powder sampling device, comprising an inner cylinder and an outer cylinder rotatably sleeved on the inner cylinder, the inner cylinder is provided with a plurality of partitions in the inside, the sampling cavities are formed between adjacent partitions, a plurality of sampling ports are arranged on the outer side wall of the inner cylinder, each sampling port corresponds to a sampling cavity, at least one powder digging tooth is arranged on the left side edge or the right side edge of the sampling port, a window is arranged on the outer cylinder, which can expose all the sampling ports, and a cover plate part is arranged on the outer cylinder, which can close all the sampling ports and shield all the powder digging teeth.

[0007] In a preferred embodiment of the utility model, the front end of the inner cylinder is fixed with a sharp head.

[0008] In a preferred embodiment of the utility model, the outer side surface of the powder digging tooth is located on the same cylindrical surface as the outer side surface of the inner cylinder, and the thickness of the powder digging tooth gradually increases from its free end to the other end.

[0009] In a preferred embodiment of the utility model, the rear end of the inner cylinder is fixed with a main rod, and a positioning device is arranged between the main rod and the outer cylinder, which can position the outer cylinder when the sampling port is in the open state and the closed state.

[0010] In a preferred scheme of the utility model, the positioning device includes positioning beads arranged on the main rod, and first and second positioning holes arranged on the outer cylinder, when the positioning beads are clamped into the first positioning hole, the sampling port is opposite to the window, when the positioning beads are clamped into the second positioning hole, the sampling port is opposite to the cover plate.

[0011] In a preferred scheme of the utility model, a guide mechanism capable of guiding the outer cylinder when the outer cylinder rotates relative to the inner cylinder is arranged between the main rod and the outer cylinder or between the inner cylinder and the outer cylinder.

[0012] In a preferred scheme of the utility model, the guide mechanism includes an annular groove arranged on the outer side wall of the main rod in the circumferential direction, and a clamping block fixed on the inner side wall of the outer cylinder and capable of sliding along the annular groove, the outer side wall of the main rod is provided with a detachable groove along the radial direction, the detachable groove is a through groove, the front end of the detachable groove is communicated with the annular groove, and the rear end of the detachable groove is located on the rear end face of the main rod.

[0013] In a preferred scheme of the utility model, the rear end of the outer cylinder is provided with a flange handle, and a handle rod is detachably arranged on the rear part of the main rod and located behind the outer cylinder, the handle rod and the main rod jointly form a T-shaped structure, a cross-shaped structure or an L-shaped structure.

[0014] In a preferred scheme of the utility model, a plug hole is arranged on the main rod, the handle rod is inserted into the plug hole, a first magnetic attraction member is arranged on the handle rod, and a second magnetic attraction member magnetically attracted to the first magnetic attraction member is arranged on the main rod.

[0015] The utility model discloses the beneficial effects are: adopt such design, the whole structure is simple and compact, and the production cost is low, can realize the layered sampling, and because the existence of the excavating tooth, is also applicable to some compact, and the flowability of powder that is pressed is bad. When rotating the whole sampling device to load the powder into, the compacted powder can be loosened by the excavating tooth, and the excavated powder is loaded into the sampling cavity. In addition, when the outer cylinder closes the sampling port, the sampling tooth can also be shielded, to avoid scratching the user by the exposed sampling tooth. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the perspective view of the utility model when the sampling port is in the open state.

[0017] Figure 2 It is Figure 1 It is the enlarged view of part A in the utility model.

[0018] Figure 3 It is the sectional view of the utility model when the sampling port is in the closed state.

[0019] Figure 4 is an exploded view of the utility model;

[0020] Figure 5 is a perspective view of the outer cylinder. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely below with reference to the drawings.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. In addition, the description of "preferred", "suboptimal" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "preferred", "suboptimal" can explicitly or implicitly include at least one of the features.

[0023] With reference to Figures 1 to 5 The utility model provides a kind of layered sampling powder sampling device, including inner cylinder 1 and the outer cylinder 2 of rotatable sleeve setting on inner cylinder 1, the inside of inner cylinder 1 is provided with multiple partitions 11, sampling cavity 10 is formed between adjacent partitions 11, the outer side wall of inner cylinder 1 is provided with multiple sampling ports 12, each sampling port 12 corresponds one sampling cavity 10, at least one excavating tooth 13 is arranged on the left side edge or right side edge of sampling port 12, window 21 for exposing all sampling ports 12 is provided on outer cylinder 2, cover plate part 22 that can close all sampling ports 12 and shield all excavating teeth 13 is also provided on outer cylinder 2.

[0024] The number of sampling cavities 10 can be 3, 4, 5, 8, 10 and the like, and all sampling cavities 10 are arranged in a row from front to back. Window 21 on outer cylinder 2 can be a large window that exposes all sampling ports 12 together, or a plurality of small windows corresponding to each sampling port 12, and the like.

[0025] The sampling method of the powder sampling device is that, first, the outer cylinder 2 is rotated to a state of closing all the sampling ports 12, then the sampling device is inserted into the powder, then the outer cylinder 2 is rotated to open the sampling ports 12, then the sampling device is rotated, the powder is loaded into all the sampling cavities 10 at the same time, then the outer cylinder 2 is rotated to close the sampling ports 12, and finally the whole sampling device is pulled out to complete the sampling. With such a design, the overall structure is simple and compact, the production cost is low, the layered sampling can be realized, and the powder sampling device is also suitable for some compact and poorly fluid powder due to the existence of the powder digging tooth 13. When the whole sampling device is rotated to load the powder therein, the compacted powder can be loosened by the powder digging tooth 13, and the loosened powder is loaded into the sampling cavities 10. In addition, the sampling teeth can be shielded when the outer cylinder 2 closes the sampling ports 12, so that the sharp sampling teeth are prevented from being exposed and scratching the user.

[0026] Further, the front end of the inner cylinder 1 is fixed with a sharp head 3. The sharp head 3 is generally conical, and the design of the sharp head 3 facilitates the insertion of the sampling device into the powder during sampling.

[0027] Referring to Figure 3 In an preferred embodiment of the present application, the outer side surface of the powder digging tooth 13 and the outer side surface of the inner cylinder 1 are located on the same cylindrical surface, and such a design does not affect the rotation of the outer cylinder 2. The thickness of the powder digging tooth 13 gradually increases from the free end to the other end, and such a design is more convenient for the powder digging tooth 13 to loosen the powder.

[0028] The opening angle of the sampling port 12 is generally 60-120 degrees, such as 80 degrees, 90 degrees or 100 degrees.

[0029] Further, the rear end of the inner cylinder 1 is fixed with a main rod 4, and a positioning device is arranged between the main rod 4 and the outer cylinder 2, and the outer cylinder 2 can be positioned by the positioning device when the sampling port 12 is in the open state or the closed state.

[0030] In an preferred embodiment of the present application, the positioning device comprises a positioning bead 5 arranged on the main rod 4, and a first positioning hole 23 and a second positioning hole 24 arranged on the outer cylinder 2. When the positioning bead 5 is clamped into the first positioning hole 23, the sampling port 12 is opposite to the window 21, and at this time, the sampling port 12 is in the open state. When the positioning bead 5 is clamped into the second positioning hole 24, the sampling port 12 is opposite to the cover plate part 22, and at this time, the sampling port 12 is in the closed state.

[0031] Further, a guiding mechanism capable of guiding the outer cylinder 2 when the outer cylinder 2 rotates relative to the inner cylinder 1 is arranged between the main rod 4 and the outer cylinder 2 or between the inner cylinder 1 and the outer cylinder 2.

[0032] In the preferred scheme of the utility model, the guide mechanism comprises an annular groove 41 arranged on the outer side wall of the main rod 4 along the circumference direction, and a clamping block 25 fixed on the inner side wall of the outer cylinder 2 and slidable along the annular groove 41, the outer side wall of the main rod 4 is provided with a mounting and dismounting groove 42 along the radial direction, the clamping block 25 can slide in the mounting and dismounting groove 42, the mounting and dismounting groove 42 is a through groove, the front end of the mounting and dismounting groove 42 is communicated with the annular groove 41, and the rear end of the mounting and dismounting groove 42 is located on the rear end face of the main rod 4. The rear end of the outer cylinder 2 is provided with a flange handle 26, and the rear part of the main rod 4 is detachably provided with a handle rod 7 located behind the outer cylinder 2, and the handle rod 7 and the main rod 4 jointly form a T-shaped structure or a cross-shaped structure or an L-shaped structure.

[0033] By adopting the above scheme, the outer cylinder 2 can be conveniently dismounted to clean the outer cylinder 2 and the inner cylinder 1, the method for dismounting the outer cylinder 2 is that the handle rod 7 is first dismounted, then the outer cylinder 2 is rotated to move the clamping block 25 in the outer cylinder 2 to the front end of the mounting and dismounting groove 42, and finally the outer cylinder 2 is pulled backward along the mounting and dismounting groove 42, so that the outer cylinder 2 and the inner cylinder 1 can be separated, and the outer cylinder 2 and the inner cylinder 1 can be conveniently cleaned after being separated.

[0034] In the preferred scheme of the utility model, the main rod 4 is provided with a plug hole 43, the handle rod 7 is inserted and mounted in the plug hole 43, the handle rod 7 and the main rod 4 jointly form a cross-shaped structure, the handle rod 7 is provided with a first magnetic attraction piece 81, and the main rod 4 is provided with a second magnetic attraction piece 82 magnetically attracted to the first magnetic attraction piece 81. The first magnetic attraction piece 81 and the second magnetic attraction piece 82 can be two magnets mutually attracted, or the first magnetic attraction piece 81 is a magnet, and the second magnetic attraction piece 82 is designed as an iron block.

[0035] In some schemes of the utility model, the handle rod 7 and the main rod 4 can also adopt other detachable connection structures, such as screw connection.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made according to the utility model specification and the drawings contents, or direct or indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A powder sampling device that allows for stratified sampling, characterized in that, The sampling device comprises an inner cylinder (1) and an outer cylinder (2) rotatably sleeved on the inner cylinder (1), the inner cylinder (1) is internally provided with a plurality of partitions (11), the sampling cavities (10) are formed between adjacent partitions (11), the outer side wall of the inner cylinder (1) is provided with a plurality of sampling ports (12), each sampling port (12) corresponds to a sampling cavity (10), the left side edge or the right side edge of the sampling port (12) is provided with at least one powder digging tooth (13), the outer cylinder (2) is provided with a window (21) for exposing all the sampling ports (12), and the outer cylinder (2) is further provided with a cover plate portion (22) capable of closing all the sampling ports (12) and shielding all the powder digging teeth (13).

2. A tiered sampling powder sampling device according to claim 1, wherein, The front end of the inner cylinder (1) is fixed with a sharp head (3).

3. A tiered sampling powder sampling device according to claim 1, wherein, The outer side surface of the powder digging tooth (13) is located on the same cylindrical surface as the outer side surface of the inner cylinder (1), and the thickness of the powder digging tooth (13) gradually increases from the free end to the other end.

4. The tiered sampling powder sampling device of claim 1, wherein, The rear end of the inner cylinder (1) is fixed with a main rod (4), the outer cylinder (2) is provided with a positioning device between the main rod (4) and the outer cylinder (2), and the outer cylinder (2) can be positioned by the positioning device in the open state and the closed state of the sampling port (12).

5. A tiered sampling powder sampling device according to claim 4, wherein, The positioning device comprises a positioning bead (5) arranged on the main rod (4), and a first positioning hole (23) and a second positioning hole (24) arranged on the outer cylinder (2), when the positioning bead (5) is clamped into the first positioning hole (23), the sampling port (12) faces the window (21), and when the positioning bead (5) is clamped into the second positioning hole (24), the sampling port (12) faces the cover plate portion (22).

6. A tiered sampling powder sampling device according to claim 4, wherein, The main rod (4) and the outer cylinder (2) or the inner cylinder (1) and the outer cylinder (2) are provided with a guide mechanism capable of guiding the outer cylinder (2) when the outer cylinder (2) rotates relative to the inner cylinder (1).

7. A tiered sampling powder sampling device according to claim 6, wherein, The guide mechanism comprises an annular groove (41) arranged on the outer side wall of the main rod (4) along the circumference, and a clamping block (25) fixed on the inner side wall of the outer cylinder (2) and capable of sliding along the annular groove (41), the outer side wall of the main rod (4) is provided with a detachable groove (42) for sliding the clamping block (25) therein along the radial direction, the detachable groove (42) is a through groove, the front end of the detachable groove (42) is communicated with the annular groove (41), and the rear end of the detachable groove (42) is located on the rear end surface of the main rod (4).

8. A tiered sampling powder sampling device according to claim 7, wherein, The rear end of the outer cylinder (2) is provided with a flange handle (26), the rear part of the main rod (4) is detachably mounted with a handle rod (7) located behind the outer cylinder (2), and the handle rod (7) and the main rod (4) jointly form a T-shaped structure, a cross-shaped structure or an L-shaped structure.

9. A tiered sampling powder sampling device according to claim 8, wherein, The main rod (4) is provided with a jack (43), the handle rod (7) is inserted into the jack (43), the handle rod (7) is provided with a first magnetic attraction member (81), and the main rod (4) is provided with a second magnetic attraction member (82) magnetically attracted to the first magnetic attraction member (81).

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