A high-purity silicon carbide micro-powder particle size detection device
By designing a high-purity silicon carbide micro powder particle size detection device, and adopting an automatic sealing component, a hole-expanding auxiliary component, and a material pushing section, the problem of particle backfilling after detection was solved, realizing an efficient and low-waste detection process, and improving detection efficiency and accuracy.
Patent Information
- Application Number
- CN202510706518.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2045-05-29
AI Technical Summary
Existing particle size detection devices for high-purity silicon carbide micro powder are not convenient for assisting in the backfilling of tested particles into the material bag, which easily leads to waste, and are not convenient for automatic control of leak sealing after detection.
A high-purity silicon carbide micro powder particle size detection device was designed, including a sampling test piece, a retention sealing piece, an automatic sealing piece, a hole expansion auxiliary piece, an observation piece, and a pushing part. The automatic sealing piece is used to prevent leakage, the hole expansion auxiliary piece facilitates hole expansion, the pushing part assists in backfilling particles, and the observation piece facilitates the observation and recovery of qualified particle size.
This eliminates the need for tedious bag opening during large-scale testing, preventing bag leakage and waste, improving testing efficiency and accuracy, and reducing particle waste.
Smart Images
Figure CN120467971B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of granularity detection, in particular to a high-purity silicon carbide micro-powder granularity detection device. BACKGROUND
[0002] Silicon carbide micro-powder particles are common abrasives and are widely applied in precision grinding of glass, ceramics, jewelry and other non-metallic materials, and the manufacturing quality of the silicon carbide micro-powder is crucial. In the manufacturing work of the silicon carbide micro-powder, the particle size of the crushed particles needs to be ensured, and when the particles exceeding the standard are mixed in the screening work, the subsequent application quality will be directly affected. In the current high-purity silicon carbide micro-powder granularity detection device, the micro-powder granularity is detected in large batch acceptance, and the on-site screening detection is usually adopted. The clogging rate of the screen is high during actual use, and the screen is not convenient to expand the hole to prevent clogging. The traditional screen is not convenient to assist in backfilling the tested particles into the bag, and waste is easily generated. In the large batch sampling work, the high-purity silicon carbide micro-powder bag needs to be first opened for sampling, and the efficiency is low. Directly adopting the sampling cylinder to pierce into the bag can cause the sampling breakage, and the bag is prone to leakage in the subsequent work, and automatic control of the leakage is not convenient.
[0003] Therefore, the application provides a high-purity silicon carbide micro-powder granularity detection device. SUMMARY
[0004] The application aims to provide a high-purity silicon carbide micro-powder granularity detection device to solve the problems that the current high-purity silicon carbide micro-powder granularity detection device is not convenient to assist in backfilling the tested particles into the bag, waste is easily generated, and automatic control of the leakage after detection is not convenient.
[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-purity silicon carbide micro-powder granularity detection device, which comprises a sampling test piece, a remaining closure piece is installed on the sampling test piece, and the remaining closure piece is used for being pasted on a silicon carbide bag; an automatic closure piece is installed on the remaining closure piece; the automatic closure piece is used for preventing leakage; an expanding auxiliary piece is installed on the sampling test piece; an observation piece is installed on the sampling test piece; the observation piece is located above the expanding auxiliary piece; a pushing part is installed on the observation piece; the pushing part is used for backfilling silicon carbide; an observation anti-shielding piece is installed in the sampling test piece; the observation anti-shielding piece is used for recycling silicon carbide of a standard particle size; the sampling test piece comprises a sampling tube and a breakage-preventing gap, the end of the sampling tube is provided with a beveled blade structure, and the breakage-preventing gap is arranged at the beveled blade opening of the end of the sampling tube; the breakage-preventing gap is used for preventing silicon carbide bag fragments from being mixed into silicon carbide particles; and a through groove is arranged on the side surface of the sampling tube.
[0006] Preferably, the sampling test piece further comprises: a test shell, a screening barrel and a rubber screening mesh, the sampling tube is fixedly installed with the test shell; the test shell is threadedly connected with the screening barrel inside; the screening barrel is fixedly installed with the rubber screening mesh at the end, and the rubber screening mesh is provided with screening micropores; the rubber screening mesh is used for screening silicon carbide powder particles; the sampling tube and the test shell are provided with a handle.
[0007] Preferably, the retention closure comprises: a closure ring, a sticky sheet and a positioning shaft, the closure ring is sleeved on the sampling tube; the bottom of the closure ring is fixedly installed with the sticky sheet, and the bottom of the sticky sheet is provided with glue solution; the positioning shaft is slidingly inserted into the closure ring, and the positioning shaft is sleeved with a tension spring; the tension spring on the positioning shaft is connected between the positioning shaft and the closure ring; the sticky sheet is used for sticking to the outside of the silicon carbide bag.
[0008] Preferably, the automatic closure comprises: a closure plate and a torsion spring shaft, the closure plate is slidingly attached to the top of the closure ring; the torsion spring shaft is rotatably inserted into the closure plate, and the torsion spring shaft is fixedly installed on the closure ring; the two ends of the torsion spring on the torsion spring shaft are respectively connected between the closure plate and the closure ring; the closure plate is provided with a jack on the side, and the jack on the side of the closure plate is aligned with the positioning shaft.
[0009] Preferably, the hole expansion auxiliary part comprises: a sliding installation barrel and a positioning bolt, the sliding installation barrel is slidingly sleeved on the sampling tube; the positioning bolt is threadedly connected on the sliding installation barrel, and the positioning bolt is located in the through slot on the side of the sampling tube; the inside of the positioning bolt is extruded and attached to the surface of the sampling tube; the top of the sliding installation barrel is glued and attached to the inside of the rubber screening mesh.
[0010] Preferably, the observation part comprises: an observation cover and an observation glass cover, the inside of the observation cover is fixedly installed with the observation glass cover, and the observation glass cover is made of transparent material; the observation cover is threadedly connected to the test shell; the observation glass cover is provided with a pressure relief through hole.
[0011] Preferably, the pushing part comprises: a rotary connecting column and an extrusion block, the rotary connecting column is rotatably sleeved in the middle of the observation glass cover; the bottom of the rotary connecting column is fixedly installed with the extrusion block, and the extrusion block is of inclined surface structure; the bottom of the extrusion block is of arc chamfer structure; the extrusion block is located above the rubber screening mesh; the extrusion block is used for axially pressing the local rubber screening mesh; the sliding installation barrel is used for radially pulling the rubber screening mesh.
[0012] Preferably, the pushing part further comprises a pushing shaft and a closed pushing ball, the pushing shaft is slidingly inserted in the middle of the rotary connecting column, the closed pushing ball is fixedly installed at the end of the pushing shaft, the closed pushing ball is of a rubber elastic structure, the closed pushing ball is sleeved on the sliding installation cylinder, and the diameter of the closed pushing ball is the same as that of the end of the sampling tube.
[0013] Preferably, the observation anti-shielding part further comprises a collecting cover and a fan shell, the collecting cover is fixedly installed inside the test shell, the inner side of the collecting cover is of a slope structure, the sliding installation cylinder is slidingly inserted in the middle of the collecting cover, the fan shell is fixedly installed at the bottom of the collecting cover and is communicated with the fan shell, the bottom of the fan shell is connected to the sliding installation cylinder through a hose, the hose at the bottom of the fan shell is used for recovering silicon carbide, and the collecting cover is located below the rubber screening mesh.
[0014] Preferably, the observation anti-shielding part further comprises an electric fan, the electric fan is fixedly installed inside the fan shell through a support, the electric fan is composed of a motor and an impeller, and when the electric fan starts to recover silicon carbide, the closed pushing ball is slidingly attached to the top of the inner side of the sliding installation cylinder.
[0015] Compared with the prior art, the present application has the following beneficial effects:
[0016] The automatic closing part can cooperate with the remaining closing part, and is more suitable for use in storage and other environments. When the staff performs acceptance, the carbonized silicon bags are batched and sampled one by one. The carbonized silicon bags in the stack can also be directly pierced for sampling and detection, without the need for complicated bag opening. The structure can automatically close after piercing for sampling, can avoid leakage or further tearing of the pierced position of the bag during subsequent transportation and other work, and can prevent carbonized silicon bag fragments from mixing into carbonized silicon particles, affecting the purity of carbonized silicon.
[0017] The expansion auxiliary part can facilitate the staff to directly pierce the sampling tube into the bag, quickly sample the carbonized silicon for particle size detection, and the sliding installation cylinder cooperates with the extrusion block to realize multidirectional pulling of the rubber screening mesh for expansion work, so that the mesh holes on the rubber screening mesh can uniformly increase in size, instead of simply lengthening, to ensure the expansion effect. The pushing part can assist the staff in operating the carbonized silicon particles for backfilling work, so as to prevent waste of the carbonized silicon particles after testing.
[0018] The observation anti-shielding piece can utilize wind force, promote the silicon carbide particles with the particle size meeting the standard on the rubber screening mesh to pass through the rubber screening mesh, and can reduce particle floating after manually shaking the rubber screening mesh for screening, promote the good vision of the staff, and the negative pressure suction of the silicon carbide particles can be directly recycled to the inside of the sliding installation cylinder, and further reduce waste. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0020] Figure 2 It is a high-purity silicon carbide micro-powder particle size detection device internal structure sectional view.
[0021] Figure 3 It is a high-purity silicon carbide micro-powder particle size detection device local structure sectional view.
[0022] Figure 4 It is a sampling test piece structure schematic view.
[0023] Figure 5 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view. Figure 1 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0024] Figure 6 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0025] Figure 7 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0026] Figure 8 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0027] Figure 9 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0028] Figure 10 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view. Figure 2 It is a high-purity silicon carbide micro-powder particle size detection device overall structure schematic view.
[0029] In the figure: 1, sample test piece; 101, sampling tube; 1011, anti-breaking gap; 102, test shell; 103, screening cylinder; 104, rubber screening mesh; 2, retention closure; 201, closure collar; 202, adhesive sheet; 203, positioning shaft; 3, automatic closure; 301, closure plate; 302, torsion spring shaft; 4, reaming auxiliary; 401, sliding mounting cylinder; 402, positioning bolt; 5, observation piece; 501, observation cover; 502, observation glass cover; 6, pushing part; 601, rotary connecting column; 602, extrusion block; 603, pushing shaft; 604, closed pushing ball; 7, observation anti-shielding piece; 701, collection cover; 702, fan shell; 703, electric fan. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0031] Embodiment one: please refer to Figures 1 to 10 as shown:
[0032] The present application provides a technical solution: a high-purity silicon carbide micro-powder particle size detection device, comprising a sample test piece 1, a retention closure 2 is installed on the sample test piece 1, and the retention closure 2 is used for being attached to a silicon carbide bag; an automatic closure 3 is installed on the retention closure 2; the automatic closure 3 is used for preventing leakage; a reaming auxiliary 4 is installed on the sample test piece 1; an observation piece 5 is installed on the sample test piece 1; the observation piece 5 is located above the reaming auxiliary 4; a pushing part 6 is installed on the observation piece 5; the pushing part 6 is used for backfilling silicon carbide; an observation anti-shielding piece 7 is installed inside the sample test piece 1; the observation anti-shielding piece 7 is used for recycling silicon carbide of standard particle size; the sample test piece 1 comprises a sampling tube 101 and an anti-breaking gap 1011, and the end of the sampling tube 101 is a beveled blade structure; the anti-breaking gap 1011 is arranged at the beveled blade edge of the end of the sampling tube 101; the anti-breaking gap 1011 is used for preventing silicon carbide bag fragments from mixing into silicon carbide particles; a through groove is arranged on the side surface of the sampling tube 101.
[0033] The sampling test piece 1 further comprises a test shell 102, a screening barrel 103 and a rubber screening mesh 104, the sampling tube 101 is fixedly installed with the test shell 102, the inside of the test shell 102 is threadedly connected with the screening barrel 103, the end of the screening barrel 103 is fixedly installed with the rubber screening mesh 104, and the rubber screening mesh 104 is provided with screening micropores, the rubber screening mesh 104 is used for screening silicon carbide powder particles, the sampling tube 101 and the test shell 102 are provided with a handle, the storage closure 2 comprises a closure collar 201, a paste piece 202 and a positioning shaft 203, the closure collar 201 is sleeved on the sampling tube 101, the bottom of the closure collar 201 is fixedly installed with the paste piece 202, and the bottom of the paste piece 202 is provided with glue solution, the positioning shaft 203 is slidingly inserted into the closure collar 201, and the positioning shaft 203 is sleeved with a tension spring, the tension spring on the positioning shaft 203 is connected between the positioning shaft 203 and the closure collar 201, the paste piece 202 is used for being attached to the outside of the silicon carbide bag, the automatic closure 3 comprises a closure plate 301 and a torsion spring shaft 302, the closure plate 301 is slidingly attached to the top of the closure collar 201, the torsion spring shaft 302 is rotatably inserted into the closure plate 301, and the torsion spring shaft 302 is fixedly installed on the closure collar 201, the two ends of the torsion spring on the torsion spring shaft 302 are respectively connected between the closure plate 301 and the closure collar 201, the closure plate 301 is provided with a bushing, the bushing of the closure plate 301 is aligned with the positioning shaft 203, the automatic closure 3 can cooperate with the storage closure 2, and is more suitable for a storage environment, a worker can batch by batch carry out sampling inspection on the silicon carbide bags during acceptance, the silicon carbide bags in the stack can also be directly sampled and detected, the flexibility is higher, and it is not necessary to tediously open the bags, meanwhile, the structure can automatically close after sampling, can avoid leakage or further tearing of the bag at the sampling position during subsequent transportation, the structure is more reasonable, meanwhile, the anti-breaking gap 1011 is used to prevent the sampling tube 101 from being completely pierced and cut off at the sampling position, prevent silicon carbide bag fragments from mixing into silicon carbide particles, affect the purity of silicon carbide, and keep the anti-breaking gap 1011 from being pierced and cut off, so that the bag at the sampling point is connected.
[0034] The reaming auxiliary part 4 comprises a sliding mounting cylinder 401 and a positioning bolt 402, the sliding mounting cylinder 401 is slidingly sleeved on the sampling pipe 101; the positioning bolt 402 is threadedly connected on the sliding mounting cylinder 401 and is located in the through groove on the side of the sampling pipe 101; the inner side of the positioning bolt 402 is extruded and attached to the surface of the sampling pipe 101; the top end of the sliding mounting cylinder 401 is glued and attached to the inner side of the rubber screening mesh 104; the observation part 5 comprises an observation cover 501 and an observation glass cover 502, the observation glass cover 502 is fixedly installed on the inner side of the observation cover 501 and is made of transparent material; the observation cover 501 is threadedly connected on the test shell 102; the observation glass cover 502 is provided with a pressure relief through hole; the pushing part 6 comprises a rotary connecting column 601 and an extrusion block 602, the rotary connecting column 601 is rotationally sleeved in the middle part of the observation glass cover 502; the extrusion block 602 is fixedly installed on the bottom of the rotary connecting column 601 and is of inclined surface structure; the bottom of the extrusion block 602 is of arc chamfer structure; the extrusion block 602 is located above the rubber screening mesh 104; the extrusion block 602 is used for axially pressing the local rubber screening mesh 104; the sliding mounting cylinder 401 is used for radially pulling the rubber screening mesh 104; the reaming auxiliary part 4 can facilitate the staff to directly pierce the sampling pipe into the material bag after sampling, quickly sample the silicon carbide for particle size detection, the sliding mounting cylinder 401 cooperates with the extrusion block 602 to realize the multi-directional pulling of the rubber screening mesh 104 for reaming work, which can ensure that the mesh holes on the rubber screening mesh 104 can be uniformly increased in diameter instead of being simply lengthened, guarantee the reaming effect, cooperate with the elastic material characteristics of the rubber screening mesh 104, directly shake the test shell 102, screen and detect the silicon carbide particles on the rubber screening mesh 104, if there are large particles that do not meet the standard, they can be left on the rubber screening mesh 104 and observed through the observation glass cover 502, the staff can rotate and detach the observation cover 501 to facilitate the removal of the observation glass cover 502 for cleaning, after the detection is completed, the sliding mounting cylinder 401 is pushed upward to drive the middle part of the rubber screening mesh 104 to move upward, the rubber screening mesh 104 is pulled, at the same time, the extrusion block 602 stops extruding the rubber screening mesh 104, which further ensures that the mesh holes on the rubber screening mesh 104 can be extruded and expanded, avoids that only the middle part of the rubber screening mesh 104 is pushed upward by the sliding mounting cylinder 401, the micro-holes on the rubber screening mesh 104 are only lengthened horizontally, cooperates with the chamfer arc surface on the bottom of the extrusion block 602, applies downward pressure, and the edge of the extrusion block 602 is narrow, promotes the elastic expansion of the micro-holes on the elastic rubber screening mesh 104, utilizes the principle that the local rubber screening mesh 104 is pulled and expanded outward after being pressed, realizes the increase in diameter and reduces the clogging rate of the surface of the rubber screening mesh 104.
[0035] The pushing part 6 further comprises a pushing shaft 603 and a closed pushing ball 604, the pushing shaft 603 is slidingly inserted in the middle of the rotary connecting column 601, the closed pushing ball 604 is fixedly installed at the end of the pushing shaft 603, the closed pushing ball 604 is of a rubber elastic structure, the closed pushing ball 604 is sleeved on the sliding installation cylinder 401, the diameter of the closed pushing ball 604 is the same as the diameter of the end of the sampling pipe 101, the closed pushing ball 604 can be used to close the top of the sliding installation cylinder 401, and the closed pushing ball 604 can assist the operator in operating the backfilling of the silicon carbide particles while screening, so that the waste of the silicon carbide particles after testing can be prevented, and the operation is simple and convenient, the residual silicon carbide particles in the sliding installation cylinder 401 can be pushed into the bag by pressing the pushing shaft 603 and the closed pushing ball 604 after the detection of the silicon carbide particles is completed, and the closed pushing ball 604 can be pushed back and forth for many times, so that the waste is reduced.
[0036] In the embodiment two, on the basis of the embodiment one, the observation anti-shielding part 7 comprises a collecting cover 701 and a fan shell 702, the collecting cover 701 is fixedly installed in the inside of the test shell 102, the inside of the collecting cover 701 is of an inclined surface structure, the sliding installation cylinder 401 is slidingly inserted in the middle of the collecting cover 701, the collecting cover 701 is fixedly installed with the fan shell 702 at the bottom, and the collecting cover 701 is communicated with the fan shell 702, the bottom of the fan shell 702 is connected with the sliding installation cylinder 401 through a hose, the hose at the bottom of the fan shell 702 is used for recycling the silicon carbide, the collecting cover 701 is located below the rubber screening mesh 104, the observation anti-shielding part 7 further comprises an electric fan 703, the electric fan 703 is fixedly installed in the inside of the fan shell 702 through a support, the electric fan 703 is composed of a motor and an impeller, when the electric fan 703 is started to recycle the silicon carbide, the closed pushing ball 604 is controlled to be slidingly attached to the inside top of the sliding installation cylinder 401, the observation anti-shielding part 7 can use the wind force to promote the silicon carbide particles with a particle size reaching the standard above the rubber screening mesh 104 to pass through the rubber screening mesh 104, and the particles floating after the rubber screening mesh 104 is shaken by the artificial for screening can be reduced, the operator can have a good view, the silicon carbide particles sucked by the negative pressure of the structure can be directly recycled to the inside of the sliding installation cylinder 401, so that the waste is further reduced, at this time, the silicon carbide particles screened at the bottom of the rubber screening mesh 104 are collected by the collecting cover 701 and introduced into the inside of the sliding installation cylinder 401 through the fan shell 702 for collection.
[0037] The working principle of the embodiment is as follows: first, before the handheld sampling pipe 101 is inserted into the silicon carbide bag, the adhesive sheet 202 can be attached to the upper surface or the upper side of the silicon carbide bag by using strong glue; after the sampling pipe 101 is inserted into the silicon carbide bag, the pushing shaft 603 is pulled outward to drive the closed pushing ball 604 to move to the top outside of the sliding installation cylinder 401, so as not to block the sliding installation cylinder 401; at this time, the sampling pipe 101 is inserted into the powder, the sampling pipe 101 can be inclined downward, and the test shell 102 is inverted, so as to facilitate the inclined guide of particle discharge; at this time, the silicon carbide particles are naturally guided from the inside of the sampling pipe 101 to the sliding installation cylinder 401, and then introduced into the screening cylinder 103, that is, above the rubber screening mesh 104; at this time, the closed pushing ball 604 can be pushed downward to close the top of the sliding installation cylinder 401, and then the sampling pipe 101 can be manually rotated to keep the test shell 102 relatively vertical; at this time, the test shell 102 can be directly shaken, and the silicon carbide particles can be screened and detected on the rubber screening mesh 104; if there are large particles that do not meet the standard, they can be left on the rubber screening mesh 104 and observed through the observation glass cover 502; the observation cover 501 can be rotated and detached, so as to facilitate the removal of the observation glass cover 502 for cleaning; after the detection is completed, if the rubber screening mesh 104 needs to be cleaned, the positioning bolt 402 can be loosened and rotated, and the sliding installation cylinder 401 is pushed upward to drive the middle part of the rubber screening mesh 104 to move upward; at the same time, the extrusion block 602 stops extruding the rubber screening mesh 104, which further ensures that the holes on the rubber screening mesh 104 can be extruded and expanded, so as to avoid that only by pushing the middle part of the rubber screening mesh 104 upward through the sliding installation cylinder 401, the micro-holes on the rubber screening mesh 104 are only lengthened horizontally; in cooperation with the chamfered arc surface at the bottom of the extrusion block 602, and by applying downward pressure and the narrow edge of the extrusion block 602, the micro-holes on the rubber screening mesh 104 with elastic structure are elastically expanded outward, the principle that the rubber screening mesh 104 is locally pressed and then elastically expanded outward is utilized, the diameter is increased, the particles stuck inside are facilitated to fall off, the rotary connecting column 601 is rotated to drive the extrusion block 602 to slide on the surface of the rubber screening mesh 104, and the universality of the hole expansion of the rubber screening mesh 104 is further ensured, so as to reduce the blocking rate of the surface of the rubber screening mesh 104.After screening by manually shaking the rubber screening mesh 104, the control closed push ball 604 is slid to fit the inside top of the sliding installation cylinder 401, which also prevents the silicon carbide discharged from the bottom hose of the fan shell 702 from being pushed by the wind to above the rubber screening mesh 104. The electric fan 703 is started at low speed to suck in real time, which can promote the falling of particles. The pressure relief hole on the observation glass cover 502 is used for pressure relief. At this time, the silicon carbide particles screened at the bottom of the rubber screening mesh 104 are collected by the collecting cover 701, and are introduced into the inside of the sliding installation cylinder 401 through the fan shell 702 for collection, which can avoid the diffusion of a large number of particles on the rubber screening mesh 104. Because the sampling tube 101 bottom end is inserted into the silicon carbide particle bag at this time, the silicon carbide particle bag is usually a woven structure, which is breathable while its metamorphic density does not cause silicon carbide powder particles to leak; after the detection of silicon carbide particles is completed, the closed push ball 604 can be lifted again to not block the top of the sliding installation cylinder 401. At this time, the rubber screening mesh 104 can be shaken to promote the falling of residual substandard particles to the sliding installation cylinder 401. The push ball 604 can be pushed back and forth multiple times to reduce waste. When the sampling tube 101 is extracted after sampling, the closed plate 301 is no longer blocked by the sampling tube 101. Under the extrusion of the torsional spring on the torsional spring shaft 302, the torsional force of the torsional spring on the torsional spring shaft 302 is large. When the closed plate 301 rotates to the side of the positioning shaft 203, the positioning shaft 203 is first extruded to retract, the tension spring on the positioning shaft 203 is elongated, and the closed plate 301 can realize the rotation of the closed sleeve ring 201. When the hole on the closed plate 301 rotates through the positioning shaft 203, the positioning shaft 203 is pulled down, and the positioning shaft 203 can be inserted into the hole on the side of the closed plate 301 for insertion positioning, to ensure the sealing stability.
[0038] It should be noted that, in the present document, the terms such as first and second, etc. are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus that comprises a list of elements does not include those elements solely, but can also include other elements not expressly listed or inherent to such process, method, article or apparatus.
[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.
Claims
1. A high-purity silicon carbide micro-powder particle size detection device, comprising a sampling test piece (1), a residence closure (2) is installed on the sampling test piece (1), characterized in that: The remaining closure (2) is used for sticking on the silicon carbide bag; The remaining closure (2) is provided with an automatic closure (3); The automatic closure (3) is used for preventing leakage; The sampling test piece (1) is provided with a reaming auxiliary part (4); The sampling test piece (1) is provided with an observation part (5); The observation part (5) is located above the reaming auxiliary part (4); The observation part (5) is provided with a pushing part (6); The pushing part (6) is used for backfilling silicon carbide; The sampling test piece (1) is internally provided with an observation anti-shielding part (7); The observation anti-shielding part (7) is used for recycling silicon carbide of standard particle size; The sampling test piece (1) comprises a sampling pipe (101) and a breakage prevention gap (1011), the end of the sampling pipe (101) is provided with a bevel blade structure, the breakage prevention gap (1011) is arranged at the bevel blade of the end of the sampling pipe (101), the breakage prevention gap (1011) is used for preventing the mixing of silicon carbide bag fragments into silicon carbide particles, and the side of the sampling pipe (101) is provided with a through groove; The sampling test piece (1) further comprises a test shell (102), a screening cylinder (103) and a rubber screening mesh (104), the sampling pipe (101) is fixedly provided with the test shell (102), the inside of the test shell (102) is threadedly connected with the screening cylinder (103), the end of the screening cylinder (103) is fixedly provided with the rubber screening mesh (104), the rubber screening mesh (104) is provided with screening micropores, the rubber screening mesh (104) is used for screening silicon carbide micro-powder particles, and the sampling pipe (101) and the test shell (102) are provided with a handle; The remaining closure (2) comprises a closure sleeve ring (201), a sticking piece (202) and a positioning shaft (203), the closure sleeve ring (201) is sleeved on the sampling pipe (101), the sticking piece (202) is fixedly installed at the bottom of the closure sleeve ring (201), and the bottom of the sticking piece (202) is provided with glue solution, the positioning shaft (203) is slidingly inserted into the closure sleeve ring (201), and the positioning shaft (203) is sleeved with a tension spring, the tension spring on the positioning shaft (203) is connected between the positioning shaft (203) and the closure sleeve ring (201), and the sticking piece (202) is used for sticking on the outside of the silicon carbide bag; The automatic closure (3) comprises a closure plate (301) and a torsion spring shaft (302), the closure plate (301) is slidingly stuck on the top of the closure sleeve ring (201), the torsion spring shaft (302) is rotationally inserted into the closure plate (301), and the torsion spring shaft (302) is fixedly installed on the closure sleeve ring (201), the torsion springs at both ends of the torsion spring shaft (302) are respectively connected between the closure plate (301) and the closure sleeve ring (201), and the closure plate (301) is provided with a jack on the side, and the jack on the side of the closure plate (301) is aligned with the positioning shaft (203).
2. The high-purity silicon carbide micro-powder particle size detection device according to claim 1, characterized in that: The reaming auxiliary part (4) comprises a sliding mounting cylinder (401) and a positioning bolt (402), the sliding mounting cylinder (401) is slidingly sleeved on the sampling pipe (101); the positioning bolt (402) is threadedly connected on the sliding mounting cylinder (401) and is located in the through slot on the side of the sampling pipe (101); the inside of the positioning bolt (402) is extruded and attached to the surface of the sampling pipe (101); the top end of the sliding mounting cylinder (401) is glued to the inside of the rubber screening mesh (104).
3. The high-purity silicon carbide micro-powder particle size detection device according to claim 2, characterized in that: The observation part (5) comprises an observation cover (501) and an observation glass cover (502), the observation glass cover (502) is fixedly installed inside the observation cover (501) and is made of transparent material; the observation cover (501) is threadedly connected on the test shell (102); the observation glass cover (502) is provided with a pressure relief through hole.
4. The high-purity silicon carbide micro-powder particle size detection device according to claim 3, characterized in that: The pushing part (6) comprises a rotary connecting column (601) and an extrusion block (602), the rotary connecting column (601) is rotatably sleeved in the middle of the observation glass cover (502); the extrusion block (602) is fixedly installed at the bottom of the rotary connecting column (601) and is of inclined surface structure; the bottom of the extrusion block (602) is of arc chamfer structure; the extrusion block (602) is located above the rubber screening mesh (104); the extrusion block (602) is used for axially pressing the local rubber screening mesh (104); the sliding mounting cylinder (401) is used for radially pulling the rubber screening mesh (104).
5. The high-purity silicon carbide micro-powder particle size detection device according to claim 4, characterized in that: The pushing part (6) further comprises a pushing shaft (603) and a closed pushing ball (604), the pushing shaft (603) is slidingly inserted in the middle of the rotary connecting column (601); the closed pushing ball (604) is fixedly installed at the end of the pushing shaft (603); the closed pushing ball (604) is of rubber elastic structure; the closed pushing ball (604) is sleeved on the sliding mounting cylinder (401); the diameter of the closed pushing ball (604) is same as the diameter of the end of the sampling pipe (101).
6. The high-purity silicon carbide micro-powder particle size detection device according to claim 5, characterized in that: The observation anti-shielding part (7) comprises a collecting cover (701) and a fan shell (702), the collecting cover (701) is fixedly installed inside the test shell (102); the inside of the collecting cover (701) is of inclined surface structure; the sliding mounting cylinder (401) is slidingly inserted in the middle of the collecting cover (701); the fan shell (702) is fixedly installed at the bottom of the collecting cover (701) and the collecting cover (701) is communicated with the fan shell (702); the bottom of the fan shell (702) is connected with the sliding mounting cylinder (401) through a hose; the hose at the bottom of the fan shell (702) is used for recovering silicon carbide; the collecting cover (701) is located below the rubber screening mesh (104).
7. The high-purity silicon carbide micro-powder particle size detection device according to claim 6, characterized in that: The observation anti-shielding piece (7) further comprises an electric fan (703) fixedly installed inside a fan shell (702) through a support; the electric fan (703) is composed of a motor and an impeller; when the electric fan (703) starts to recover silicon carbide, the closed pushing ball (604) is controlled to slide and adhere to the inside top of the sliding installation cylinder (401).
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