Sample scraping device and experimental equipment

Abstract

The utility model discloses a sample scraping device and experimental equipment. The sample scraping device comprises a fixing assembly, a first pre-pressing assembly, a second pre-pressing assembly and a scraper, the first pre-pressing assembly is in sliding connection with the fixing assembly in the first direction, and the first pre-pressing assembly elastically abuts against the fixing assembly in the first direction; the second pre-pressing assembly is slidably connected with the first pre-pressing assembly in the second direction, the second pre-pressing assembly elastically abuts against the first pre-pressing assembly in the second direction, and the first direction intersects with the second direction; one end of the scraper is connected with the second pre-pressing assembly, and the other end of the scraper is used for scraping the sample in the container. The sample scraping device is high in powder scraping efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field, concretely relates to a sample scraping device and experimental equipment. BACKGROUND

[0002] In the experiment process, when the dry sample is handled next, the sample is often scraped from the container and transferred to the corresponding container of next process, and the powder scraping and transferring operation is often completed manually by the experimental personnel, which needs to spend a lot of time and energy of the experimental personnel, and the labor cost is high. In addition, for some toxic and harmful samples, manual operation will have safety hazards to the experimental personnel. Therefore, the powder sample scraping efficiency is low in the existing experimental process. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a sample scraping device and experimental equipment, and solves the problem of low powder sample scraping efficiency in the experimental process.

[0004] In order to realize the utility model's purpose, the utility model provides the following technical scheme:

[0005] Firstly, the utility model provides a sample scraping device, which comprises:

[0006] A fixing assembly is arranged on the container, and the fixing assembly is arranged on the container.

[0007] A first pre-pressing assembly is slidably connected with the fixing assembly in a first direction, and the first pre-pressing assembly and the fixing assembly are elastically abutted in the first direction.

[0008] A second pre-pressing assembly is slidably connected with the first pre-pressing assembly in a second direction, and the second pre-pressing assembly and the first pre-pressing assembly are elastically abutted in the second direction, and the first direction and the second direction intersect.

[0009] A scraper is connected with the second pre-pressing assembly at one end, and the other end is used for scraping the sample in the container.

[0010] In one embodiment, the scraper comprises a handle and a blade body, one end of the handle is connected with the second pre-pressing assembly, and the blade body is connected with the end of the handle away from the second pre-pressing assembly.

[0011] The blade body is at least partially protruded from the outer circumferential surface of the handle, and the blade body has a scraping surface for scraping the sample.

[0012] In one embodiment, the scraping surface comprises a first cutting surface and a second cutting surface, the first cutting surface is located at an end of the cutter body away from the cutter handle, the first cutting surface has a first edge, the first edge is located at a position of the first cutting surface farthest away from the cutter handle;

[0013] The second cutting surface is connected with the first cutting surface, the second cutting surface has a second edge, the second edge is located at a position of the second cutting surface most protruding from the cutter handle.

[0014] In one embodiment, the first edge is connected with the second edge; in the case that the cutter body extends in the second direction, the first edge is parallel to the first direction, and the second edge is parallel to the second direction; or, in the case that the cutter body extends in the first direction, the first edge is parallel to the second direction, and the second edge is parallel to the first direction.

[0015] In one embodiment, the first direction and the second direction are perpendicular, the first direction is a horizontal direction, and the second direction is a vertical direction, and the cutter body extends in the second direction.

[0016] In one embodiment, the cutter body further has a grinding surface, the grinding surface is used for grinding the sample;

[0017] The grinding surface is connected with the first cutting surface, and the first edge intersects with the grinding surface.

[0018] In one embodiment, the fixing assembly comprises a first fixing plate and a second fixing plate, the first fixing plate is arranged in the first direction, the second fixing plate is arranged in the second direction, the second fixing plate is connected with the first fixing plate, and the second fixing plate extends from the first fixing plate towards the first pre-pressing assembly;

[0019] The fixing assembly further comprises a first sliding rail, the first sliding rail is arranged on a side of the first fixing plate towards the first pre-pressing assembly, and the first pre-pressing assembly is slidingly connected with the first sliding rail in the first direction.

[0020] In one embodiment, the first pre-pressing assembly comprises a first guide column, a first elastic member, a first connecting block and a first sliding member;

[0021] The first guide column is arranged along the first direction, one of the second fixed plate and the first connecting block is fixedly connected with one end of the first guide column, and the other is slidably connected with the other end of the first guide column; the first elastic member is arranged between the second fixed plate and the first connecting block and surrounds the first guide column, one end of the first elastic member in the first direction abuts against the second fixed plate, and the other end of the first elastic member in the first direction abuts against the first connecting block; the first connecting block is slidably connected with the first sliding rail in the first direction, the first sliding member is connected with one end of the first connecting block away from the first guide column, the first sliding member is arranged along the second direction, and the first sliding member extends from the first connecting block towards the second pre-pressing assembly, and the first sliding member is slidably connected with the second pre-pressing assembly in the second direction.

[0022] In one embodiment, the second fixed plate is provided with a first guide hole, and the first guide column passes through the first guide hole and can move relative to the inner wall of the first guide hole in the first direction.

[0023] In one embodiment, the second pre-pressing assembly comprises a second guide column, a second elastic member and a second connecting block.

[0024] The second guide column is arranged along the second direction, one of the first connecting block and the second connecting block is fixedly connected with one end of the second guide column, and the other is slidably connected with the other end of the second guide column; the second elastic member is arranged between the first connecting block and the second connecting block and surrounds the second guide column, one end of the second elastic member abuts against the first connecting block, and the other end of the second elastic member abuts against the second connecting block; the end of the second connecting block away from the first connecting block in the second direction is connected with the scraper, and the second connecting block is also slidably connected with the first sliding member in the second direction.

[0025] In one embodiment, the second connecting block is provided with a second guide hole, and the second guide column passes through the second guide hole and can move relative to the inner wall of the second guide hole in the second direction.

[0026] In one embodiment, the first sliding member comprises a support plate arranged along the second direction and a second sliding rail, one end of the support plate away from the first connecting block is connected with the first connecting block, the second sliding rail is arranged on the surface of the support plate towards the second connecting block, and the second connecting block is slidably connected with the second sliding rail in the second direction.

[0027] Alternatively, the first sliding member comprises a sliding rod and a bearing, the bearing is fixedly connected with the second connecting block, the sliding rod is arranged in the second direction and passes through the bearing, one end of the sliding rod is fixedly connected with the first connecting block, and the bearing moves relative to the sliding rod in the second direction.

[0028] In an embodiment, the sample scraping device further comprises a carrying mechanism, the carrying mechanism is connected with the fixing assembly, and the carrying mechanism is used to drive the fixing assembly to move so as to move the scraper.

[0029] In an embodiment, the carrying mechanism is detachably connected with the fixing assembly; the sample scraping device further comprises an adapter, one end of the adapter is fixedly connected with the fixing assembly, and the other end of the adapter is detachably connected with the carrying mechanism.

[0030] In an embodiment, the sample scraping device further comprises a first rotating mechanism, the first rotating mechanism is connected with the fixing assembly, and the first rotating mechanism is used to drive the fixing assembly to rotate so as to rotate the scraper.

[0031] In a second aspect, the utility model provides an experimental equipment, including container fixing device and the sample scraping device of any one of the various embodiment modes of first aspect, container fixing device is used to fix the container of sample to be scraped, and the sample scraping device is used to scrape the sample in the container.

[0032] In an embodiment, the container fixing device comprises a container seat and a second rotating mechanism, the container seat is connected with the second rotating mechanism, the container seat is used to fix the container, and the second rotating mechanism is used to drive the container seat to rotate so as to rotate the container.

[0033] The sample scraping device of the utility model realizes scraping powder sample in a container in all directions by setting first pre-pressing assembly, second pre-pressing assembly and scraper, and the first pre-pressing assembly exerts pressure on the scraper in the first direction, and the second pre-pressing assembly exerts pressure on the scraper in the second direction, so that the scraper can be as close as possible to the bottom wall and the side wall of the container when moving relative to the container, the sample in the container is scraped in all directions, the sample residue in the container is reduced, and the scraping efficiency of sample powder is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

[0035] Figure 1 It is a perspective view of a sample scraping device of an embodiment;

[0036] Figure 2 It is a perspective view of a scraper of an embodiment;

[0037] Figure 3 It is a side view of a scraper of an embodiment;

[0038] Figure 4 It is a side view of an experimental device of an embodiment.

[0039] Explanation of reference signs:

[0040] 100 - experimental device, 10 - sample scraping device, 11 - fixing assembly, 111 - first fixing plate, 112 - second fixing plate, 1121 - first guide hole, 113 - first sliding rail, 12 - first pre-pressing assembly, 121 - first guide column, 122 - first elastic piece, 123 - first connecting block, 124 - first sliding piece, 1241 - support plate, 1242 - second sliding rail, 13 - second pre-pressing assembly, 131 - second guide column, 132 - second elastic piece, 133 - second connecting block, 1331 - first sub-block, 1332 - second sub-block, 1333 - third sub-block, 134 - second guide hole, 14 - scraper, 141 - handle, 142 - blade body, 143 - first cutting surface, 1431 - first edge, 144 - second cutting surface, 1441 - second edge, 145 - grinding surface, 16 - adapter, 20 - container fixing device, 21 - container, 22 - container seat, 23 - second rotating mechanism, X - first direction, Y - second direction, Z - third direction. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the application herein is used only for the purpose of describing particular embodiments of the application and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] Some embodiments of the present application will now be described in detail in connection with the accompanying drawings. The following embodiments and features are merely exemplary and can be combined with each other in non-conflicting ways.

[0045] Reference can be made to Figure 1 and Figure 4 The present application provides a sample scraping device 10, which comprises a fixing assembly 11, a first pre-pressing assembly 12, a second pre-pressing assembly 13 and a scraper 14. The first pre-pressing assembly 12 is slidably connected to the fixing assembly 11 in a first direction X, and the first pre-pressing assembly 12 and the fixing assembly 11 elastically abut in the first direction X. The second pre-pressing assembly 13 is slidably connected to the first pre-pressing assembly 12 in a second direction Y, and the second pre-pressing assembly 13 and the first pre-pressing assembly 12 elastically abut in the second direction Y. The first direction X and the second direction Y intersect. One end of the scraper 14 is connected to the second pre-pressing assembly 13, and the other end is used for scraping the sample in the container 21.

[0046] The scraper 14 can be a carbon steel scraper, a stainless steel scraper, a high-strength plastic scraper, etc., without limitation.

[0047] The connection mode of the scraper 14 and the second pre-pressing assembly 13 can be screwing, clamping, bonding, welding, etc., without limitation.

[0048] The sliding connection mode of the first pre-pressing assembly 12 and the fixing assembly 11 and the sliding connection mode of the second pre-pressing assembly 13 and the first pre-pressing assembly 12 can be linear, curved or hinged, and can be linear guide and sliding block, curved guide, sliding surface, etc., without limitation.

[0049] The sample can be in powder or solid-liquid mixture form, and the powder and / or agglomerated sample residues are left on the inner wall of the container 21, and the scraper 14 separates the sample from the inner wall of the container 21 by mutual extrusion and friction.

[0050] In one embodiment, the fixing assembly 11 comprises a first fixing plate 111 and a second fixing plate 112, the first fixing plate 111 is arranged along a first direction X, the second fixing plate 112 is arranged along a second direction Y, the second fixing plate 112 is connected with the first fixing plate 111, and the second fixing plate 112 extends from the first fixing plate 111 towards the first pre-pressing assembly 12.

[0051] Optionally, the fixing assembly 11 can be an integral structure, i.e. an integral structure prepared by an integral process, and the integral forming process can be stamping, casting, etc. without limitation. The fixing assembly 11 can also be a split structure, and the first fixing plate 111 and the second fixing plate 112 can be connected and fixed by welding, bonding, clamping, screwing, etc. The first fixing plate 111 and the second fixing plate 112 are made of a material with high structural strength, and the material can be a metal material, a high-strength plastic, a ceramic, etc. The metal material can be aluminum, an aluminum alloy, a magnesium alloy, iron, an iron alloy, etc.

[0052] The second fixing plate 112 can be arranged at the end of the first fixing plate 111 in the first direction X, or the second fixing plate 112 can be spaced from the end of the first fixing plate 111 in the first direction X without limitation, e.g. the second fixing plate 112 is arranged at the side of the first fixing plate 111 close to the first pre-pressing assembly 12.

[0053] Specifically, in one embodiment, when the first direction X is a horizontal direction and the second direction Y is a vertical direction, the scraper 14 rotates relative to the container 21 and extends into the interior of the container 21, the first pre-pressing assembly 12 presses the scraper 14 in the first direction X so that the scraper 14 is tightly attached to the side wall of the container 21 to scrape the sample on the side wall, and the second pre-pressing assembly 13 presses the scraper 14 in the second direction Y so that the scraper 14 is tightly attached to the bottom wall of the container 21 to scrape the sample on the bottom wall.

[0054] The sample scraping device 10 of the utility model has the first pre-pressing assembly 12, the second pre-pressing assembly 13 and the scraper 14, the first pre-pressing assembly 12 presses the scraper 14 in the first direction X, and the second pre-pressing assembly 13 presses the scraper 14 in the second direction Y, so that the scraper 14 can be tightly attached to the bottom wall and the side wall of the container 21 when moving relative to the container 21, the powder sample in the container 21 can be scraped in all directions, the sample residue in the container 21 is reduced, and the scraping efficiency of the sample powder is improved.

[0055] Reference can be made to Figure 1 and Figure 2In one embodiment, the scraper 14 comprises a handle 141 and a body 142, one end of the handle 141 is connected with the second pre-pressing assembly 13, and the body 142 is connected with the handle 141 at an end away from the second pre-pressing assembly 13; the body 142 at least partially protrudes from the outer circumferential surface of the handle 141, and the body 142 has a scraping surface for scraping the sample.

[0056] Optionally, the handle 141 and the body 142 can be an integrated structure, i.e. an integrated structure prepared by an integrated forming process, which can be stamping, casting, etc. without limitation. The handle 141 and the body 142 can also be a split structure, and the handle 141 and the body 142 can be connected and fixed by welding, bonding, clamping, screwing, etc.

[0057] The material of the handle 141 can be the same as or different from that of the body 142 without limitation. Specifically, the handle 141 is provided with a first threaded hole, the second pre-pressing assembly 13 is correspondingly provided with a second threaded hole, the handle 141 and the second pre-pressing assembly 13 are connected and fixed by a threaded member, and the first threaded hole can be multiple and arranged at intervals. Alternatively, the handle 141 has a clamping portion arranged on the outer circumferential surface thereof, and the second pre-pressing assembly 13 is provided with a clamping groove corresponding to the clamping portion to achieve the connection and fixation of the handle 141 and the second pre-pressing assembly 13.

[0058] In this way, the part of the body 142 of the scraper 14 protruding from the outer circumferential surface of the handle 141 increases the contact area between the scraper 14 and the inner wall surface of the container 21, and the part of the body 142 protruding from the outer circumferential surface of the handle 141 makes the scraper 14 at least partially in a broken line shape, which facilitates the body 142 to scrape the powder on the inner wall surface of the container 21, and further improves the scraping effect of the scraper 14.

[0059] For reference Figure 1 and Figure 2 In one embodiment, the scraping surface comprises a first cutting surface 143 and a second cutting surface 144, the first cutting surface 143 is located at an end of the body 142 away from the handle 141, the first cutting surface 143 has a first edge 1431 at a position farthest from the handle 141 on the first cutting surface 143, and the second cutting surface 144 is connected with the first cutting surface 143, the second cutting surface 144 has a second edge 1441 at a position farthest protruding from the handle 141 on the second cutting surface 144.

[0060] When in contact with the inner wall of the container 21, the first edge 1431 and the second edge 1441 are both at the front end of the relative rotation direction of the scraper 14 and the container 21. The connection of the second cutting surface 144 with the first cutting surface 143 can be regarded as that the second cutting surface 144 and the first cutting surface 143 at least have one common edge.

[0061] The first cutting surface 143 can be trapezoidal, rectangular, etc., and the second cutting surface 144 can be triangular, rectangular, trapezoidal, etc., without limitation.

[0062] The designs of the first cutting surface 143 and the second cutting surface 144 together constitute the scraping surface of the tool, enabling the tool to efficiently and accurately perform various cutting or scraping tasks.

[0063] In an embodiment, the first edge 1431 is connected with the second edge 1441; for reference Figure 2 When the tool body 142 extends along the second direction Y, the first edge 1431 is parallel to the first direction X, and the second edge 1441 is parallel to the second direction Y; or, when the tool body 142 extends along the first direction X, the first edge 1431 is parallel to the second direction Y, and the second edge 1441 is parallel to the first direction X.

[0064] When the tool body 142 extends along the second direction Y, the first edge 1431 is parallel to the first direction X, and the first edge 1431 remains straight in the extension direction of the tool, which is helpful for straight cutting or scraping; the second edge 1441 is parallel to the second direction Y, and the second edge 1441 also remains straight along the extension direction of the tool, together with the first edge 1431, constituting a stable cutting edge.

[0065] At this time, the first edge 1431 is the part of the tool 14 that first contacts the container and exerts force during cutting or scraping in the second direction Y. In addition to its own cutting effect, the second cutting surface 144 can also provide additional support to the first cutting surface 143, ensuring the continuity and smoothness of the cutting. The second edge 1441 is the part of the tool 14 that first contacts the container and exerts force during cutting or scraping in the first direction X, and the second edge 1441 is located at the position where the second cutting surface 144 is most protruding from the handle 141, facilitating deeper cutting.

[0066] When the tool body 142 extends along the first direction X, the first edge 1431 is parallel to the second direction Y, and the first edge 1431 is perpendicular to the extension direction of the tool body 142, which can be used for cutting or scraping perpendicular to the extension direction of the tool body 142; the second edge 1441 is parallel to the first direction X, and the second edge 1441 is along the extension direction of the tool body 142, forming an angle with the first edge 1431, which is convenient for cutting at an oblique angle.

[0067] In this way, at least one of the first edge 1431 and the second edge 1441 realizes scraping in the first direction X, and the other realizes scraping in the second direction Y, ensuring that both the side wall and the bottom wall of the container 21 can realize scraping of the sample.

[0068] In one embodiment, when the blade 142 extends approximately along the second direction Y, the first edge 1431 may form an angle with the first direction X, the angle being 0°-10°, and the second edge 1441 may form an angle with the second direction Y, the angle being 0°-10°. This configuration expands the application scenarios of the blade 142; the angled design allows the scraper 14 to tilt to a certain extent during cutting, facilitating the creation of more complex cutting shapes and adapting to changes in the inner wall surface of the container 21.

[0069] In one implementation method, reference may be made to Figure 2 The first direction X and the second direction Y are perpendicular. The first direction X is horizontal and the second direction Y is vertical. The blade body 142 extends along the second direction Y.

[0070] This configuration allows the first pre-compression component 12 to provide lateral pre-compression, ensuring the scraper 14 adheres to the side wall of the container 21, while the second pre-compression component 13 provides longitudinal pre-compression, ensuring the scraper 14 adheres to the bottom wall of the container 21. Correspondingly, the opening of the container 21 also faces the second direction Y. Furthermore, when the blade 142 extends vertically, the first cutting surface 143 and the first edge 1431 form the bottom cutting edge, while the second cutting surface 144 and the second edge 1441 correspond to the lateral cutting edge.

[0071] In one implementation, such as Figure 3 As shown, the blade body 142 also has a grinding surface 145, which is used to grind the sample; the grinding surface 145 is connected to the first cutting surface 143, and the first edge 1431 intersects with the grinding surface 145.

[0072] The fact that the grinding surface 145 is connected to the first cutting surface 143 can be considered as the grinding surface 145 and the first cutting surface 143 having at least one common edge.

[0073] The shape of the grinding surface 145 can be rectangular, triangular, etc., without limitation. The grinding surface 145 is a smooth and hard surface to ensure uniformity and efficiency during the grinding process.

[0074] The grinding surface 145 is connected to the first cutting surface 143. During the use of the scraper 14, the process can be directly transitioned from cutting to grinding without changing tools or adjusting the position.

[0075] With this configuration, during the lateral translation of the first cutting surface 143, i.e. the bottom blade, the grinding surface 145 located at the bottom of the scraper 14 can grind the powder to break up the agglomerated powder sample, which is conducive to subsequent powder transfer.

[0076] Reference can be made to Figure 1 In an embodiment, the fixing assembly 11 further comprises a first sliding rail 113, which is arranged on the side of the first fixing plate 111 facing the first pre-pressing assembly 12, and the first pre-pressing assembly 12 is in sliding connection with the first sliding rail 113 in the first direction X.

[0077] The first sliding rail 113 extends in the first direction X, and there can be a plurality of first sliding rails 113, which are arranged on the first fixing plate 111 in the third direction Z and are in sliding connection with the first pre-pressing assembly 12. The first direction X, the second direction Y and the third direction Z intersect with each other. The material of the first sliding rail 113 can be metal, plastic, composite material, etc., and specifically can be stainless steel, aluminum alloy, polyethylene, glass fiber reinforced plastic, carbon fiber reinforced plastic, etc., without limitation.

[0078] The type of sliding connection between the first sliding rail 113 and the first pre-pressing assembly 12 can be a roller type sliding rail, a steel ball type sliding rail, a gear type sliding rail, a damping type sliding rail, etc., without limitation.

[0079] The first sliding rail 113 is arranged to achieve the sliding connection between the first pre-pressing assembly 12 and the fixing assembly 11, so that the frictional resistance between the first pre-pressing assembly 12 and the fixing assembly 11 is small, the movement is stable, and maintenance and adjustment are facilitated.

[0080] Reference can be made to Figure 1 In an embodiment, the first pre-pressing assembly 12 comprises a first guide column 121, a first elastic member 122, a first connecting block 123 and a first sliding member 124; the first guide column 121 is arranged in the first direction X, one of the second fixing plate 112 and the first connecting block 123 is fixedly connected with one end of the first guide column 121, and the other is in sliding connection with the other end of the first guide column 121; the first elastic member 122 is arranged between the second fixing plate 112 and the first connecting block 123 and surrounds the first guide column 121, one end of the first elastic member 122 in the first direction X abuts against the second fixing plate 112, and the other end of the first elastic member 122 in the first direction X abuts against the first connecting block 123; the first connecting block 123 is in sliding connection with the first sliding rail 113 in the first direction X, the first sliding member 124 is connected with the end of the first connecting block 123 away from the first guide column 121, the first sliding member 124 is arranged in the second direction Y, and the first sliding member 124 extends from the first connecting block 123 towards the second pre-pressing assembly 13, and the first sliding member 124 is in sliding connection with the second pre-pressing assembly 13 in the second direction Y.

[0081] Specifically, one end of the first guide column 121 is connected and fixed with the first connecting block 123, and the other end is slidingly connected with the second fixed plate 112. Alternatively, one end of the second guide column 131 is connected and fixed with the second fixed plate 112, and the other end is slidingly connected with the first connecting block 123. The first guide column 121 can be connected in a manner of screwing, welding, bonding, clamping, magnetic attraction, etc., without limitation.

[0082] The first guide column 121 can be multiple, and the multiple first guide columns 121 are arranged at intervals in the second direction Y and / or the third direction Z. The cross-sectional shape of the first guide column 121 can be circular, oval, rectangular, etc., without limitation.

[0083] The first elastic member 122 can be a compression spring, a rubber sleeve, a spring sheet, etc., without limitation.

[0084] The first guide column 121 and the first connecting block 123 are made of a material with high structural strength, which can be a metal material, a high-strength plastic, a ceramic, etc. The metal material can be aluminum, an aluminum alloy, a magnesium alloy, iron, an iron alloy, etc.

[0085] In this way, the first pre-pressing assembly 12 ensures that when the scraper 14 contacts the inner wall of the container 21, a pre-pressing effect in the first direction X is provided, so that the scraper 14 is attached to the side wall of the container 21, and the first elastic member 122 surrounds the first guide column 121. When the scraper 14 is pressed, it can float in the first direction X, thereby playing a certain buffering role.

[0086] For reference Figure 1 In an embodiment, the second fixed plate 112 is provided with a first guide hole 1121, and the first guide column 121 passes through the first guide hole 1121 and can move in the first direction X relative to the inner wall of the first guide hole 1121.

[0087] The first guide column 121 is connected and fixed with the first connecting block 123, and the first guide column 121 and the first connecting block 123 move in the first direction X relative to the second fixed plate 112. Optionally, the first connecting block 123 is provided with a first accommodating groove, and the opening of the first accommodating groove faces the second fixed plate 112. The first guide column 121 is at least partially accommodated in the first accommodating groove. Alternatively, the first guide column 121 is arranged on the end surface of the first connecting block 123 facing the second fixed plate 112, and the end surface is a plane.

[0088] The second fixed plate 112 is also used to limit the first pre-pressing assembly 12 in the first direction X, so as to avoid interference with other components caused by excessive movement.

[0089] The cross-sectional shape of the first guide hole 1121 corresponds to the cross-sectional shape of the first guide column 121, and the cross-sectional shape of the first guide hole 1121 can be circular, oval, rectangular, etc., without limitation.

[0090] The number of the first guide holes 1121 is the same as that of the first guide posts 121.

[0091] The inner wall of the first guide hole 1121 can be in close contact with the first guide post 121 or have a partial gap with the first guide post 121.

[0092] In this way, the first guide post 121 moves relative to the inner wall of the first guide hole 1121 in the first direction X to drive the first connecting block 123 to move relative to the fixed assembly 11, and the first guide hole 1121 can limit the movement of the first guide post 121 to avoid deviation from the first direction X.

[0093] For reference Figure 1 In an embodiment, the second pre-pressing assembly 13 includes a second guide post 131, a second elastic member 132, and a second connecting block 133; the second guide post 131 is arranged along the second direction Y, one of the first connecting block 123 and the second connecting block 133 is fixedly connected with one end of the second guide post 131, and the other is slidably connected with the other end of the second guide post 131; the second elastic member 132 is arranged between the first connecting block 123 and the second connecting block 133 and surrounds the second guide post 131, one end of the second elastic member 132 abuts against the first connecting block 123, and the other end of the second elastic member 132 abuts against the second connecting block 133; the end of the second connecting block 133 away from the first connecting block 123 in the second direction Y is connected with the scraper 14, and the second connecting block 133 is also slidably connected with the first sliding member 124 in the second direction Y.

[0094] Specifically, one end of the second guide post 131 is fixedly connected with the first connecting block 123, and the other end is slidably connected with the second connecting block 133. Or, one end of the second guide post 131 is fixedly connected with the second connecting block 133, and the other end is slidably connected with the first connecting block 123.

[0095] The second guide post 131 can be fixedly connected in a screwing, welding, bonding, clamping, magnetic attraction, etc., without limitation.

[0096] The second guide post 131 can be multiple, and the multiple second guide posts 131 are arranged at intervals in the first direction X and / or the third direction Z.

[0097] The second elastic member 132 can be a compression spring, a rubber sleeve, a spring piece, etc., without limitation.

[0098] The second connecting block 133 can include a first sub-block 1331, a second sub-block 1332 and a third sub-block 1333 connected in sequence in the third direction Z, the second sub-block 1332 is connected and fixed with the scraper 14 away from the end of the first connecting block 123, and the second guide column 131 is two, one of which is connected with the first sub-block 1331, and the other is connected with the third sub-block 1333. The thickness of the first sub-block 1331 and the third sub-block 1333 in the second direction Y is smaller than that of the second sub-block 1332. In this way, the light weight of the sample scraping device 10 is realized while the connecting effect is ensured.

[0099] In this way, the second pre-pressing assembly 13 ensures that when the scraper 14 contacts the inner wall of the container 21, a pre-pressing effect in the second direction Y is provided, so that the scraper 14 is in close contact with the bottom wall of the container 21, and the second elastic member 132 surrounds the second guide column 131, which can float in the second direction Y when the scraper 14 is pressed, thereby playing a certain buffering effect.

[0100] For reference Figure 1 In an embodiment, the second connecting block 133 is provided with a second guide hole 134, and the second guide column 131 passes through the second guide hole 134 and can move in the second direction Y relative to the inner wall of the second guide hole 134.

[0101] The second guide column 131 is connected and fixed with the first connecting block 123, and the second guide column 131 and the first connecting block 123 move in the second direction Y relative to the second connecting block 133. Optionally, the first connecting block 123 is provided with a second accommodating groove, the opening of the second accommodating groove faces the second connecting block 133, and the second guide column 131 is at least partially accommodated in the second accommodating groove. Alternatively, the second guide column 131 is arranged on the end face of the first connecting block 123 facing the second connecting block 133, and the end face is a plane.

[0102] The cross-sectional shape of the second guide hole 134 corresponds to the cross-sectional shape of the second guide column 131, and the cross-sectional shape of the second guide hole 134 can be circular, elliptical, rectangular, etc., without limitation.

[0103] The number of second guide holes 134 is the same as the number of second guide columns 131.

[0104] The inner wall of the second guide hole 134 can be in close contact with the second guide column 131, or there can be a gap between the second guide hole 134 and the second guide column 131.

[0105] Specifically, the second guide hole 134 is two, one of which penetrates the first sub-block 1331 in the second direction Y, and the other of which penetrates the third sub-block 1333 in the second direction Y, and each second guide hole 134 corresponds to accommodate one second guide column 131.

[0106] In this way, the second guide post 131 moves relative to the inner wall of the second guide hole 134 in the second direction Y to drive the second connecting block 133 to move relative to the fixed assembly 11, and the second guide hole 134 can limit the movement of the second guide post 131 to avoid deviation from the second direction Y.

[0107] In one embodiment, the first sliding member 124 can be connected to the first connecting block 123 in the second direction Y. Figure 1 The first sliding member 124 includes a support plate 1241 arranged in the second direction Y and a second sliding rail 1242, the support plate 1241 is connected to the end of the first connecting block 123 away from the first guide post 121, and the second sliding rail 1242 is arranged on the surface of the support plate 1241 facing the second connecting block 133, and the second connecting block 133 is slidingly connected to the second sliding rail 1242 in the second direction Y.

[0108] Alternatively, the first sliding member 124 includes a sliding rod and a bearing, the bearing is connected and fixed to the second connecting block 133, the sliding rod is arranged in the second direction Y and passes through the bearing, one end of the sliding rod is connected and fixed to the first connecting block 123, and the bearing moves relative to the sliding rod in the second direction Y.

[0109] The specific shape of the first sliding member 124 can refer to any feasible scheme, and the utility model embodiments are not limited.

[0110] Optionally, the second sliding rail 1242 extends in the second direction Y, and the second sliding rail 1242 can be multiple, the multiple second sliding rails 1242 are arranged on the support plate 1241 in the third direction Z, and the multiple second sliding rails 1242 are slidingly connected to the second connecting block 133.

[0111] The support plate 1241 and the first connecting block 123 can be an integral structure or a split structure, specifically, the connection mode of the support plate 1241 and the first connecting block 123 can be welding, bonding, clamping, screwing, etc., without limitation.

[0112] Optionally, the sliding rod is made of high-strength, wear-resistant and corrosion-resistant materials such as stainless steel, alloy steel or carbon fiber. The sliding rod is in a cylindrical shape, which is convenient for cooperation with parts such as bearings, and reduces frictional resistance. The main function of the sliding rod is to provide a stable sliding path, so that other components can move linearly or rotationally along it. The bearing can be a rolling bearing, a sliding bearing, a thrust bearing, etc., without limitation. The bearing can include an inner and outer ring, a rolling body (such as a ball, a roller) and a retainer, etc. The bearing is used to support the sliding rod, reduce friction and wear, and improve the accuracy and reliability of the sliding rod. Specifically, the outer ring of the bearing is connected to the second connecting block 133, and the inner ring of the bearing is connected to the sliding rod.

[0113] In this way, the first sliding member 124 has various forms, and can achieve sliding connection of the first sliding member 124 relative to the second pre-pressing assembly 13 in the second direction Y.

[0114] In an embodiment, the sample scraping device 10 further comprises a carrying mechanism connected with the fixing assembly 11, and the carrying mechanism is used to drive the fixing assembly 11 to move so as to move the scraper 14.

[0115] The carrying mechanism can be a mechanical arm such as a four-axis mechanical arm, a six-axis mechanical arm, etc., or a multi-directional translation mechanism such as a horizontal moving mechanism, a vertical moving mechanism, or an XYZ three-axis moving mechanism, etc., or a mobile robot. The specific structure of the carrying mechanism can refer to any feasible scheme, and the embodiments of the present application are not limited. Specifically, the mechanical arm can include an actuator (arm, etc.), a driving system (such as a motor, a hydraulic or pneumatic device), a control system (such as a PLC, a single-chip microcomputer, etc.), and a sensor, etc. The end of the mechanical arm is connected with the fixing assembly 11, and the control system controls the movement of the mechanical arm to drive the scraper 14 to move, so that the scraper 14 is pressed against the inner wall of the container 21 to scrape the powder sample on the inner wall of the container 21.

[0116] In this way, the scraper 14 is controlled by the carrying mechanism to work along a specified trajectory, realizing full-automatic operation of powder scraping and avoiding safety hazards caused by toxic and harmful samples to experimenters.

[0117] In an embodiment, the carrying mechanism can be detachably connected with the fixing assembly 11; and the sample scraping device 10 further comprises an adapter 16, one end of the adapter 16 is fixedly connected with the fixing assembly 11, and the other end of the adapter 16 is detachably connected with the carrying mechanism. The specific shape of the adapter 16 can refer to any feasible scheme, and the embodiments of the present application are not limited. Figure 1

[0118] The adapter 16 and the fixing assembly 11 can be an integrated structure or a split structure, which is not limited.

[0119] The connection mode of the adapter 16 and the carrying mechanism can be screwing, clamping, magnetic attraction, pneumatic, etc., which is not limited.

[0120] In this way, the adapter 16 can improve the connection and replacement efficiency of the carrying mechanism and the fixing assembly 11, and improve the flexibility of the carrying mechanism.

[0121] In an embodiment, the sample scraping device 10 further comprises a first rotating mechanism connected with the fixing assembly 11, and the first rotating mechanism is used to drive the fixing assembly 11 to rotate so as to rotate the scraper 14.

[0122] Optionally, the sample scraping device 10 further comprises an adapter 16, one end of the adapter 16 is fixedly connected with the fixing assembly 11, and the other end of the adapter 16 is detachably connected with the first rotating mechanism.​

[0123] The first rotating mechanism can be motor-driven rotation, hydraulic or pneumatic driven rotation, gear transmission rotation, worm gear transmission rotation, etc., without limitation.

[0124] The connection mode of the first rotating mechanism and the adapter 16 can be screwing, magnetic attraction, clamping, etc., without limitation.

[0125] The first rotating mechanism drives the fixed assembly 11 to rotate to drive the scraper 14 to rotate, and the container 21 can be fixed or the container 21 rotates in the opposite direction, so that the extrusion effect of the scraper 14 relative to the inner wall surface of the container 21 is more obvious, and the scraping efficiency of the powder sample on the inner wall surface of the container 21 is higher.

[0126] For reference Figure 1 and Figure 4 The utility model provides an experimental equipment 100, including container fixing device 20 and preceding various embodiment mode any one described sample scraping device 10, container fixing device 20 is used for fixing the container 21 of sample to be scraped, and sample scraping device 10 is used for scraping the sample in container 21.

[0127] Optionally, the container 21 can be tubular, such as a test tube, a centrifuge tube, etc., and the container 21 can also be columnar, without limitation. The experimental equipment 100 has high scraping efficiency of the powder sample by setting the sample scraping device 10, specifically, the scraper 14 can separate the solidified material from the inner wall of the container 21 by mutual extrusion and friction; the scraper 14 scrapes the powder on the side wall and the bottom of the container 21 by the pre-pressing of the first pre-pressing assembly 12 in the first direction X and the pre-pressing of the second pre-pressing assembly 13 in the second direction Y, reducing the residual powder in the container 21.

[0128] In this way, the experimental equipment 100 can efficiently realize the scraping and transfer of the sample, reducing the labor cost of the experimental personnel.

[0129] For reference Figure 4 In an embodiment, the container fixing device 20 includes a container seat 22 and a second rotating mechanism 23, the container seat 22 is connected with the second rotating mechanism 23, the container seat 22 is used for fixing the container 21, and the second rotating mechanism 23 is used for driving the container seat 22 to rotate to make the container 21 rotate.

[0130] The second rotating mechanism 23 can be motor-driven rotation, hydraulic or pneumatic driven rotation, gear transmission rotation, worm gear transmission rotation, etc., without limitation.

[0131] The container seat 22 and the container 21 can be fixedly connected or detachably connected, and the connection mode of the container seat 22 and the container 21 can be welding, bonding, clamping, screwing and the like, which is not limited.

[0132] In this way, in the experimental equipment 100, the container 21 can be fixed and the sample scraping device 10 moves, or the sample scraping device 10 is fixed and the container 21 rotates, so that the application scenarios of the experimental equipment 100 are wider, and different working modes can be selected according to different situations.

[0133] In one embodiment, the use process of the experimental equipment 100 is as follows: the container 21 to be scraped is fixed on the container seat 22, and the second rotating mechanism 23 drives the container seat 22 on which the container 21 is placed to rotate, so that the container 21 rotates. The carrying mechanism drives the scraper 14 to extend into the container 21, the first pre-pressing assembly 12 is used to make the scraper 14 close to the side wall of the container 21, the carrying mechanism drives the scraper 14 to slowly move downward, so as to scrape the powder sample on the side wall; when reaching the bottom of the container 21, the scraper 14 is longitudinally pre-pressed under the driving of the carrying mechanism, so that the scraper 14 is close to the bottom wall of the container 21, the carrying mechanism drives the scraper 14 to slowly translate, and the second pre-pressing assembly 13 is used to scrape the sample at the bottom of the container 21.

[0134] In the description of the embodiments of the present application, it should be explained that the orientations or position relationships of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the orientations or position relationships described based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0135] The above disclosure is only a preferred embodiment of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A sample scraping device, characterized by, The utility model relates to a sample scraping device, comprising: a fixing assembly; a first pre-pressing assembly connected with the fixing assembly in a first direction, and the first pre-pressing assembly elastically abuts against the fixing assembly in the first direction; a second pre-pressing assembly connected with the first pre-pressing assembly in a second direction, and the second pre-pressing assembly elastically abuts against the first pre-pressing assembly in the second direction, the first direction and the second direction intersecting each other; a scraper, one end of the scraper being connected with the second pre-pressing assembly, and the other end of the scraper being used for scraping a sample in a container.

2. The sample ablation device of claim 1, wherein, The scraper comprises a handle and a blade body, one end of the handle being connected with the second pre-pressing assembly, and the blade body being connected with the handle away from the second pre-pressing assembly. The blade body at least partially protrudes from the outer circumferential surface of the handle, and the blade body has a scraping surface used for scraping the sample.

3. The sample ablation device of claim 2, wherein, The scraping surface comprises a first cutting surface and a second cutting surface, the first cutting surface being located at the end of the blade body away from the handle, and the first cutting surface having a first edge, the first edge being located at the position of the first cutting surface farthest away from the handle. The second cutting surface is connected with the first cutting surface, and the second cutting surface has a second edge, the second edge being located at the position of the second cutting surface most protruding from the handle.

4. The sample scraping device of claim 3, wherein, The first edge is connected with the second edge; in the case that the blade body extends in the second direction, the first edge is parallel to the first direction, and the second edge is parallel to the second direction; or, in the case that the blade body extends in the first direction, the first edge is parallel to the second direction, and the second edge is parallel to the first direction.

5. The sample scraping device of claim 4, wherein, The first direction and the second direction are perpendicular to each other, the first direction being a horizontal direction, and the second direction being a vertical direction, and the blade body extends in the second direction.

6. The sample scraping device of claim 3, wherein, The blade body further has a grinding surface used for grinding the sample. The grinding surface is connected with the first cutting surface, and the first edge intersects with the grinding surface.

7. The sample scraping device according to any one of claims 1 to 6, wherein The fixing assembly comprises a first fixing plate and a second fixing plate, the first fixing plate being arranged in the first direction, the second fixing plate being arranged in the second direction, the second fixing plate being connected with the first fixing plate, and the second fixing plate extending from the first fixing plate towards the first pre-pressing assembly; The fixing assembly further comprises a first sliding rail, the first sliding rail being arranged on the side of the first fixing plate towards the first pre-pressing assembly, and the first pre-pressing assembly being connected with the first sliding rail in the first direction.

8. The sample ablation device of claim 7, wherein, The first pre-pressing assembly comprises a first guide column, a first elastic member, a first connecting block and a first sliding member. The first guide column is arranged along the first direction, one of the second fixed plate and the first connecting block is fixedly connected with one end of the first guide column, and the other is slidably connected with the other end of the first guide column; the first elastic member is arranged between the second fixed plate and the first connecting block and surrounds the first guide column, one end of the first elastic member abuts against the second fixed plate in the first direction, and the other end of the first elastic member abuts against the first connecting block in the first direction. The first connecting block is slidably connected with the first sliding rail in the first direction, the first sliding member is connected with one end of the first connecting block away from the first guide column, the first sliding member is arranged along the second direction, and the first sliding member extends from the first connecting block towards the second pre-pressing assembly; the first sliding member is slidably connected with the second pre-pressing assembly in the second direction.

9. The sample ablation device of claim 8, wherein, The second fixed plate is provided with a first guide hole, and the first guide column passes through the first guide hole and can move in the first direction relative to the inner wall of the first guide hole.

10. The sample scraping device of claim 8, wherein, The second pre-pressing assembly comprises a second guide column, a second elastic member and a second connecting block. The second guide column is arranged along the second direction, one of the first connecting block and the second connecting block is fixedly connected with one end of the second guide column, and the other is slidably connected with the other end of the second guide column; the second elastic member is arranged between the first connecting block and the second connecting block and surrounds the second guide column, one end of the second elastic member abuts against the first connecting block, and the other end of the second elastic member abuts against the second connecting block; the end of the second connecting block away from the first connecting block in the second direction is connected with the scraper, and the second connecting block is slidably connected with the first sliding member in the second direction.

11. The sample ablation device of claim 10, wherein, The second connecting block is provided with a second guide hole, and the second guide column passes through the second guide hole and can move in the second direction relative to the inner wall of the second guide hole.

12. The sample ablation device of claim 10, wherein, The first sliding member comprises a support plate arranged along the second direction and a second sliding rail, the support plate is connected with one end of the first connecting block away from the first guide column, the second sliding rail is arranged on the surface of the support plate towards the second connecting block, and the second connecting block is slidably connected with the second sliding rail in the second direction. Alternatively, the first sliding member comprises a sliding rod and a bearing, the bearing is fixedly connected with the second connecting block, the sliding rod passes through the bearing and is arranged along the second direction, one end of the sliding rod is fixedly connected with the first connecting block, and the bearing moves relative to the sliding rod in the second direction.

13. The sample scraping device according to any one of claims 1 to 6, wherein The sample scraping device further comprises a conveying mechanism connected with the fixed assembly, and the conveying mechanism is used to drive the fixed assembly to move, so that the scraper moves.

14. The sample ablation device of claim 13, wherein, The carrying mechanism is detachably connected with the fixing assembly; the sample scraping device further comprises an adapter, one end of the adapter is fixedly connected with the fixing assembly, and the other end of the adapter is detachably connected with the carrying mechanism.

15. The sample scraping device according to any one of claims 1 to 6, wherein The sample scraping device further comprises a first rotating mechanism, the first rotating mechanism is connected with the fixing assembly, and the first rotating mechanism is used for driving the fixing assembly to rotate so as to rotate the scraper.

16. An experimental apparatus, characterized by The sample scraping device comprises a container fixing device and a sample scraping device as claimed in any one of claims 1 to 15, the container fixing device is used for fixing a container of a sample to be scraped, and the sample scraping device is used for scraping the sample in the container.

17. The experimental apparatus of claim 16, wherein, The container fixing device comprises a container seat and a second rotating mechanism, the container seat is connected with the second rotating mechanism, the container seat is used for fixing the container, and the second rotating mechanism is used for driving the container seat to rotate so as to rotate the container.

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