Self-locking type sample grinding tank

Abstract

The utility model relates to the technical field of laboratory sample preparation devices, and particularly discloses a self-locking type sample grinding tank which comprises a supporting assembly for supporting, a reciprocating assembly arranged on the supporting assembly and a sample preparation box mounted on the reciprocating assembly, the sample preparation box comprises a box body, a sample preparation cavity is formed in the inner side of the box body, and one or more grinding columns are mounted on the inner side of the box body and used for grinding materials; the two ends of the box body are each provided with a containing cavity, the containing cavities and the inner side of the box body are arranged in a separated mode, through holes are formed in the two sides of the box body, transmission rods are slidably connected to the through holes, and the transmission rods are matched with the grinding columns; through the design of the annular array convex blocks on the grinding column, uniform contact between materials and the grinding block bodies can be ensured, an efficient grinding effect is provided, and through the uniform distribution of the convex blocks, the consistency of the grinding process can be enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory sample preparation devices, and particularly relates to a self-locking sample grinding jar. Background Art

[0002] Laboratory grinders are primarily used for sample crushing and grinding in the laboratory. Commonly used grinding jars are cylindrical cup-shaped. These jars are typically equipped with cylindrical impactors or rings. These components come into contact with the sample during the grinding process, but their linear contact surface results in a smaller surface area acting on the sample, reducing grinding efficiency.

[0003] Furthermore, cylindrical impactors or impact rings are difficult to clean thoroughly after use. During the grinding process, cleaning must be done while the impactor is rotating, which complicates and increases the difficulty of cleaning, potentially leading to sample residue and affecting the accuracy of subsequent experiments.

[0004] Based on this, the present application provides a self-locking sample grinding jar. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a self-locking sample grinding jar, which solves the problems of the existing sample preparation jar being inconvenient to clean, not simple to fill with materials, and poor grinding efficiency during the grinding process.

[0006] The self-locking sample grinding tank of the utility model comprises a supporting assembly for supporting, a reciprocating assembly arranged on the supporting assembly, and a sample preparation box installed on the reciprocating assembly;

[0007] The sample preparation box includes a box body, a sample preparation cavity is opened on the inner side of the box body, and one or more grinding columns are installed on the inner side of the box body for grinding the material;

[0008] Both ends of the box body are provided with a accommodating chamber, the accommodating chamber is separated from the inner side of the box body, and both sides of the box body are provided with a through hole, the through hole is slidably connected to the transmission rod, and the transmission rod is adapted to the grinding column;

[0009] A driving assembly is provided inside the accommodating chamber, and the driving assembly drives the transmission rod to move with the grinding column, thereby grinding the material for sample preparation.

[0010] As a further improvement of the present invention, the reciprocating assembly includes a rotating circular plate, a cylinder is provided on one side of the rotating circular plate, and the cylinder is slidably connected to a swing arm.

[0011] As a further improvement of the present invention, a gear is provided at the bottom of the swing arm, a rack is engaged on the outside of the gear, a sliding rod is connected to the bottom of the rack, the sliding rod is installed on the support assembly, and a connecting part is provided on the outside of the slider, and the connecting part is connected to one side of the box body.

[0012] As a further improvement of the present invention, the support assembly includes a horizontally placed horizontal plate, one side of the horizontal plate is bent upward to form a bent portion, a vertical plate is provided in the middle of the bent portion, a through hole is opened on one side of the vertical plate, and the vertical plate is connected to the circular plate through an axis rod, and a motor is provided at the other end of the axis rod, and the motor drives the circular plate to rotate around the axis rod, causing the swing arm to perform circular motion.

[0013] As a further improvement of the present invention, two symmetrically arranged snap rings are provided on one side of the bending portion, the snap rings are plugged into the sliding rod, a sliding groove is provided in the middle of the top of the horizontal plate, and the sliding groove is slidably connected to the sliding block provided at the bottom of the box.

[0014] As a further improvement of the present invention, the grinding column includes two grinding blocks arranged vertically, and positioning rings are provided at both ends of the two grinding blocks. One end of the positioning ring of the two grinding blocks is adapted to the transmission rod, and cooperates with the driving assembly to drive the grinding block to move.

[0015] As a further improvement of the present invention, the outer side of the grinding block and the outer side of the transmission rod are provided with protrusions in a ring array, and the protrusions come into contact with the material to grind the material.

[0016] As a further improvement of the present invention, a sample feeding port is provided on the outer side of the grinding block between two of the protrusions, and the sample feeding port completely passes through the grinding block.

[0017] As a further improvement of the present invention, positioning holes are provided at the diagonals of the four sides of the top of the box body, sealing grooves are provided at two of the positioning holes, a sealing cover is provided at the top of the box body, and a plug-in column is provided at the bottom of the sealing cover at the positioning hole for closing the top of the box body.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The utility model can improve the uniformity of contact between the material and the grinding block and improve the grinding effect through the design of the annular array of protrusions on the grinding column. The grinding block cooperates with the transmission rod through the positioning ring, and uses the motor to drive the shaft to achieve precise power transmission. This design ensures that the grinding block can reciprocate stably and effectively; and in the process of reciprocating motion, the box and the grinding block move at the same time. At this time, the grinding block rotates and reciprocates inside, which can be selected according to different grinding needs to improve the grinding effect; the sealing design on the top of the box forms an excellent sealing effect through the cooperation of the sealing cover, sealing groove and plug-in column. It effectively prevents the leakage of materials and gases and the entry of external pollutants, ensuring the cleanliness and safety of the operating environment;

[0020] The optimized structural design (such as the matching of the chute and slider, and the sealing design) reduces the difficulty of equipment maintenance and cleaning. This design improves user convenience and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the combined three-dimensional structure of the support assembly and the reciprocating assembly of the utility model;

[0023] Figure 2 This is a side view structural diagram of the support assembly, reciprocating assembly and sample preparation box combination of the present invention;

[0024] Figure 3 This is a front view structural diagram of the support assembly and the reciprocating assembly in the present invention;

[0025] Figure 4 This is a schematic diagram of the top view of the sample preparation box in the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the grinding column in the utility model;

[0027] Figure 6 This is a schematic diagram of the front view structure of the grinding column in the utility model;

[0028] Figure 7 for Figure 6 Schematic diagram of the AA cross-section structure.

[0029] In the figure: 1. Support assembly; 2. Reciprocating assembly; 3. Sample preparation box; 4. Grinding column;

[0030] 11. Vertical plate; 12. Horizontal plate; 13. Slide; 14. Bend;

[0031] 21. Rotating circular plate; 22. Shaft; 23. Sliding rod; 24. Swing arm; 25. Snap ring; 26. Rack; 27. Connecting part;

[0032] 31. Slider; 32. Box; 33. Sample preparation chamber; 34. Sealing groove; 35. Transmission rod; 36. Drive assembly; 37. Positioning hole;

[0033] 41. Sample injection port; 42. Grinding block; 43. Positioning ring; 44. Protrusion. DETAILED DESCRIPTION

[0034] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0035] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] Laboratory grinders are primarily used for sample crushing and grinding in the laboratory. Commonly used grinding jars are cylindrical cup-shaped. These jars are typically equipped with cylindrical impactors or rings. These components come into contact with the sample during the grinding process, but their linear contact surface results in a smaller surface area acting on the sample, reducing grinding efficiency.

[0037] Furthermore, cylindrical impactors or impact rings are difficult to clean thoroughly after use. During the grinding process, cleaning must be done while the impactor is rotating, which complicates and increases the difficulty of cleaning, potentially leading to sample residue and affecting the accuracy of subsequent experiments.

[0038] Based on this, the present application provides a self-locking grinding sample jar, such as Figures 1 to 4 As shown, it includes a supporting assembly 1 for supporting, a reciprocating assembly 2 arranged on the supporting assembly 1, and a sample preparation box 3 installed on the reciprocating assembly 2;

[0039] The sample preparation box 3 includes a box body 32, a sample preparation cavity 33 is provided inside the box body 32, and one or more grinding columns 4 are installed inside the box body 32 for grinding the material;

[0040] Both ends of the box body 32 are provided with a accommodating chamber, which is separated from the inner side of the box body 32, and both sides of the box body 32 are provided with a through hole, and the through hole is slidably connected to the transmission rod 35, which is adapted to the grinding column 4;

[0041] A driving assembly 36 is provided inside the accommodating chamber. The driving assembly 36 drives the transmission rod 35 to move the grinding column 4, thereby grinding the material for sample preparation.

[0042] The support assembly 1 is used to support the entire structure of the sample grinding tank to ensure its stability and reliability.

[0043] The reciprocating assembly 2 is disposed on the supporting assembly 1 and is mainly used to generate reciprocating motion to drive the grinding column 4 in the sample preparation box 3 to perform the grinding operation. The movement mode of the reciprocating assembly 2 can be mechanical drive, electric drive or pneumatic drive.

[0044] The box body 32 is the core part of the sample preparation box 3 and is provided with a sample preparation cavity 33 inside for accommodating the material to be ground.

[0045] One or more grinding columns 4 are mounted inside the housing 32 and are responsible for grinding the material. The shape and material of the grinding columns 4 can be selected as needed to improve grinding efficiency and effect.

[0046] Both ends of the box body 32 are provided with accommodating chambers for accommodating the transmission components, and the accommodating chambers are isolated from the inner side of the box body 32 to prevent direct contact between the material and the drive system, thereby avoiding contamination and damage.

[0047] Through holes are provided on both sides of the box body 32 for sliding connection of the transmission rod 35. The design of the through holes ensures that the transmission rod 35 can move freely in the box body 32 while maintaining the adaptation of the grinding column 4 and the transmission rod 35.

[0048] The transmission rod 35 is adapted to the grinding column 4 and is connected in the through hole by sliding. It is responsible for transmitting the power of the driving component 36 to the grinding column 4 to make it move.

[0049] Drive assembly 36 is located within the housing chamber and is responsible for driving the transmission rod 35. Drive assembly 36 can be an electric motor, pneumatic cylinder, or other type of drive device. Its function is to cause the transmission rod 35 to drive the grinding column 4 in reciprocating motion, thereby grinding the material within the housing 32.

[0050] Since the grinding column 4 exerts a relatively uniform force on the material during its reciprocating motion, the grinding efficiency can be effectively improved. Compared with the traditional linear contact method, this structure can contact and process the material more comprehensively.

[0051] The design and drive mode of the grinding column 4 allow for more precise grinding action, which can grind the material more evenly and finely. By adjusting the parameters of the drive assembly 36, the grinding process can be precisely controlled to meet different grinding requirements.

[0052] In addition, during the grinding process, the grinding block reciprocates with the box 32. At this time, the material migrates back and forth inside through the reciprocating motion, thereby contacting the grinding block 42. According to the different movement modes of the grinding block 42, the drive assembly 36 provided therein can be a telescopic member, such as a cylinder, a hydraulic cylinder, etc., or a motor.

[0053] When a cylinder is used, the two grinding blocks 42 move back and forth in opposite directions, while when a motor is used, the grinding blocks can mesh with each other and rotate, thereby achieving different grinding needs;

[0054] The self-locking design makes it easier to remove and clean the grinding sample jar. Compared with traditional grinding sample jars, it is easy to take out and replace the grinding column 4, and clean the material residue inside the box 32.

[0055] The isolation design of the receiving chamber and the sample preparation chamber 33 avoids direct contact between the material and the drive system, reducing the risk of contamination. This design can also protect the drive assembly 36 from the influence of the material, thereby extending the service life of the equipment.

[0056] By adjusting the settings of the drive assembly 36, reciprocating motions of different frequencies and amplitudes can be achieved, providing flexible operating options to accommodate different grinding requirements.

[0057] The combination of the support assembly 1 and the reciprocating assembly 2 ensures the stability of the entire sample grinding jar and avoids operational problems caused by vibration or instability during the grinding process.

[0058] In some embodiments, the reciprocating assembly 2 includes a rotating circular plate 21, a cylinder is provided on one side of the rotating circular plate 21, and a swing arm 24 is slidably connected to the cylinder. Figures 1 to 3 shown.

[0059] A gear is provided at the bottom of the swing arm 24, and a rack 26 is engaged on the outside of the gear. The bottom of the rack 26 is connected to a slide bar 23, and the slide bar 23 is installed on the support assembly 1. A connecting part 27 is provided on the outside of the slide bar 23, and the connecting part 27 is connected to one side of the box body 32.

[0060] The core of the reciprocating assembly 2 is a rotating circular plate 21. This plate generates reciprocating motion through rotation. A cylinder is mounted on one side of the plate, supporting and connecting a swing arm 24. The cylinder is connected to the rotating circular plate 21, providing support for the swing arm 24 and enabling it to slide relative to the rotating circular plate. The swing arm 24 is fixed to the cylinder, and the sliding connection allows it to reciprocate as the circular plate rotates.

[0061] A gear is installed at the bottom of the gear swing arm 24, and the gear is engaged with the rack 26. The gear transmits power by rotation, so that the swing arm 24 can reciprocate along the rack 26.

[0062] The rack 26 is fixed inside the equipment, with the bottom connected to the slide bar 23. The meshing of the rack 26 and the gear ensures the precise reciprocating motion of the swing arm 24. The slide bar 23 is connected to the bottom of the rack 26, supporting and guiding the movement of the swing arm 24. The slide bar 23 is mounted on the support assembly 1 to ensure its stability and correct motion trajectory. The connecting portion 27 of the slide bar 23 is connected to one side of the box 32. Through this connection, the reciprocating motion of the swing arm 24 can be effectively transmitted to the box 32, causing the box 32 to reciprocate, thereby carrying the material back and forth.

[0063] During use, the swing arm 24 is driven by rotating the circular plate 21, and precise reciprocating motion is achieved through the cooperation of the gear and rack 26. The meshing of the gear and rack 26 ensures that the reciprocating motion trajectory of the swing arm 24 is stable and precise, which can improve the consistency and efficiency of grinding.

[0064] It should be noted that the reciprocating motion of the swing arm 24 enables the grinding column 4 to contact and process the material more evenly. Compared with the traditional linear contact method, this design significantly improves the grinding efficiency.

[0065] Furthermore, the slide bar 23 ensures the smooth movement of the swing arm 24, reducing vibration and instability. This design makes the equipment more stable during the grinding process and further improves the grinding quality.

[0066] It is understood that the above solution can flexibly control the reciprocating frequency and amplitude of the swing arm 24 by adjusting the speed and angle of the rotating circular plate 21, thereby adapting to different grinding requirements. This flexibility increases the applicability of the equipment.

[0067] The high precision of the gear and rack 26 reduces wear caused by inaccurate movement. The design of the slide bar 23 and the slider 31 reduces friction, further reducing maintenance frequency and cost.

[0068] The design of the support assembly 1, the slide bar 23 and the slider 31 provides a stable structural support, avoiding the structural instability problem that may occur during the movement. This stability helps to maintain the long-term use and reliability of the device.

[0069] See also Figure 1 、 Figure 2 、 Figure 3 The support assembly 1 includes a horizontally placed horizontal plate 12, one side of the horizontal plate 12 is bent upward to form a bent portion 14, a vertical plate 11 is provided in the middle of the bent portion 14, a through hole is opened on one side of the vertical plate 11, and it is connected to the circular plate through an axis 22, and a motor is provided at the other end of the axis 22. The motor drives the circular plate to rotate around the axis 22, and drives the swing arm 24 to perform circular motion.

[0070] Two symmetrically arranged snap rings 25 are provided on one side of the bending portion 14, and the snap rings 25 are plugged into the slide rod 23. A slide groove 13 is provided in the middle of the top of the cross plate 12, and the slide groove 13 is slidably connected to the slider 31 provided at the bottom of the box body 32.

[0071] The main part of the support assembly 1 is the horizontally placed cross plate 12. It provides the basis of the support system and ensures the stability of the whole.

[0072] One side of the transverse plate 12 is bent upward to form a bent portion 14. The design of the bent portion 14 enhances the structural strength of the transverse plate 12 and provides support for the vertical plate 11.

[0073] The vertical plate 11 is disposed in the middle of the bent portion 14 , and a through hole is formed on one side of the vertical plate 11 . The vertical plate 11 is connected to the shaft 22 through the through hole, providing a connection point with the rotating circular plate 21 .

[0074] A shaft 22 is connected to the through hole of the vertical plate 11, one end of which is connected to the circular plate and the other end is connected to the motor. The shaft 22 is responsible for transmitting the power of the motor to the circular plate to rotate it.

[0075] The motor is mounted on the other end of the shaft 22 to drive the shaft 22 and the circular plate to rotate. The operation of the motor causes the circular plate to drive the swing arm 24 to move in an arc, thereby achieving a reciprocating grinding action.

[0076] Two symmetrical snap rings 25 are provided on one side of the bent portion 14. These snap rings 25 are used to engage with the slide bar 23, ensuring its position and stability. The slide bar 23 is attached to the support assembly 1 via the snap rings 25, maintaining stability and connecting to the rack 26 to transmit reciprocating motion.

[0077] A chute 13 is provided in the middle of the top of the cross plate 12. This chute 13 is slidably connected to a slider 31 at the bottom of the box 32. The slider 31 is mounted on the bottom of the box 32 and connected to the chute 13 on the cross plate 12 via the chute 13, providing a stable sliding platform that allows the box 32 to slide smoothly on the support assembly 1.

[0078] The design of the bent portion 14 and the vertical plate 11 enhances the structural stability of the support assembly 1 and ensures that the sample grinding machine will not become unstable due to structural problems during operation.

[0079] The motor-driven rotation of the shaft 22 and the circular plate provides a precise circular motion, which enables the swing arm 24 to perform accurate reciprocating motion, thereby improving the grinding effect and ensuring the consistency of the grinding process.

[0080] It should be noted that the plug-in design of the retaining ring 25 and the slide rod 23, as well as the connection between the shaft 22 and the motor, achieves efficient power transmission. The rotational force of the motor is transmitted to the circular plate through the shaft 22, which in turn drives the swing arm 24 to move in an arc, ensuring the efficient movement of the grinding column 4.

[0081] It can be understood that the design of the above-mentioned slide groove 13 and slider 31 can make the box body 32 slide smoothly. The cooperation between the slide groove 13 and the slider 31 makes the box body 32 slide on the support component 1 smoother, reduces friction and movement resistance, and improves the overall operational stability of the equipment.

[0082] In this solution, structures such as the horizontal plate 12, the bent portion 14, the vertical plate 11, and the chute 13 are used to make the overall structure of the device relatively simple. The simple design facilitates subsequent maintenance and repair, reducing operational complexity.

[0083] The precise fit between the chute 13 and the slider 31 reduces wear caused by direct friction, thereby extending the service life of the equipment and reducing maintenance frequency and costs.

[0084] It is understandable that by adjusting the rotation speed of the motor, the rotation speed of the circular plate and the movement amplitude of the swing arm 24 can be flexibly controlled.

[0085] In some embodiments, the grinding column 4 includes two grinding blocks 42 arranged one above the other. Both ends of the two grinding blocks 42 are provided with positioning rings 43. One end of the positioning rings 43 of the two grinding blocks 42 is adapted to the transmission rod 35, and cooperates with the driving assembly 36 to drive the grinding blocks 42 to move. Figure 2 as well as Figures 4 to 7 shown.

[0086] The outside of the grinding block 42 is provided with protrusions 44 in a circular array along the outside of the drive rod 35. The protrusions 44 come into contact with the material to grind it. A sample injection port 41 is provided on the outside of the grinding block 42, located between two of the protrusions 44, and extends completely through the grinding block 42.

[0087] Both ends of the two grinding blocks 42 are provided with positioning rings 43. The positioning rings 43 are used to ensure the fixation and stability of the grinding blocks 42 so that they can move reliably under the drive of the transmission rod 35.

[0088] One end of the positioning ring 43 is adapted to the transmission rod 35 and transmits power through the driving assembly 36 so that the grinding block 42 can perform an effective grinding operation.

[0089] The outer side of the grinding block 42 is provided with an annular array of protrusions 44. The arrangement of the protrusions 44 enables the grinding block 42 to come into contact with the material and perform the actual grinding operation.

[0090] The bumps 44 grind the material by contacting the material, providing sufficient contact area and force to achieve an effective grinding effect.

[0091] A sample injection port 41 is provided on the outside of the grinding block 42 between the two protrusions 44. The sample injection port 41 completely penetrates the grinding block 42, allowing the sample to be directly injected into the grinding chamber.

[0092] The design of the sample inlet 41 facilitates the addition and processing of samples, ensures the smooth entry and processing of samples during the grinding process, and allows the material to be smoothly introduced into the cavity during subsequent cleaning to avoid residue on the outside of the grinding block 42.

[0093] The design of the grinding block 42 is matched with the annular array of bumps 44, which effectively increases the contact area and force with the material, significantly improving the grinding efficiency. The structure of the bumps 44 provides a uniform grinding force, ensuring fine grinding of the material.

[0094] The positioning ring 43 ensures that the grinding block 42 is stably fixed on the transmission rod 35, avoiding uneven grinding caused by loosening or displacement of components during the grinding process. The stable structure improves the consistency and accuracy of grinding.

[0095] The design of the sample inlet 41 allows the sample to be directly introduced into the grinding block 42 without disassembly or complicated operation. Furthermore, the annular array of bumps 44 ensures uniform contact and processing of the material during the grinding process, avoiding variations in grinding results caused by uneven distribution of bumps 44.

[0096] Due to the design of the grinding blocks 42 and the protrusions 44 , materials will not be retained between the grinding blocks 42 , thereby reducing the difficulty of cleaning caused by residual materials.

[0097] The design of the sample inlet 41 completely passing through the grinding block 42 enables the device to process samples of different sizes and shapes, thereby increasing the applicability of the device.

[0098] The design of the grinding block 42 and the protrusion 44 takes wear resistance into consideration and is usually made of wear-resistant materials. They can withstand wear during long-term use, thereby extending the service life of the equipment and reducing maintenance costs.

[0099] See also Figure 4 , positioning holes 37 are provided at the diagonal positions of the four corners of the frame on the top of the box body 32, and sealing grooves 34 are provided at the two positioning holes 37. A sealing cover is provided on the top of the box body 32, and a plug-in column is provided at the bottom of the sealing cover at the positioning hole 37 for sealing the top of the box body 32. A spring sheet is provided on the outside of the plug-in column in an arc shape. After being plugged into the positioning hole 37, self-locking is achieved through the spring sheet, and it is relatively convenient to open it later. Due to the plug-in method, the powder can be sealed inside the cavity during sample preparation.

[0100] The top of the box body 32 is provided with positioning holes 37 at the diagonal parts of the frame. These positioning holes 37 are designed to dock with the plug-in posts of the sealing cover to ensure that the sealing cover can be accurately fixed on the top of the box body 32.

[0101] Positioning holes 37 are used to receive the plug-in posts at the bottom of the sealing cover. By these positioning holes 37, the sealing cover can correctly aim at and be fixed on the top of the casing 32, thereby realizing effective sealing.

[0102] Sealing grooves 34 are provided at the two positioning holes 37. The design purpose of the sealing grooves 34 is to accommodate sealing strips or sealing materials to enhance the sealing effect and prevent leakage of materials or gases.

[0103] The sealing cover is arranged on the top of the box body 32 and is designed to be detachable for easy maintenance and sample addition. A plug-in column is provided at the bottom of the sealing cover at the positioning hole 37 for inserting into the positioning hole 37.

[0104] The main function of the sealing cover is to seal the top of the box body 32 to prevent external contaminants from entering, while preventing leakage of materials and gases inside the box body 32. The sealing cover cooperates with the positioning hole 37 through the plug-in column to achieve a reliable sealing effect.

[0105] The plug-in posts at the bottom of the sealing cover are used to insert into the positioning holes 37 of the box body 32. The design of the plug-in posts ensures that the sealing cover can be firmly fixed to the top of the box body 32, thereby forming an effective seal.

[0106] By providing the sealing groove 34 and the plug-in post, the sealing cover can form a good seal with the top of the box body 32 to prevent the leakage of materials, gases or external pollutants. This sealing performance ensures environmental stability and sample safety during the grinding process.

[0107] The design of the sealing cover allows for quick and easy installation and removal, simplifying the process of adding samples, maintaining and cleaning the equipment. Users can operate without disassembling the entire box 32, improving work efficiency.

[0108] The matching design of the positioning hole 37 and the plug-in post ensures that the sealing cover can be stably fixed on the box body 32, preventing the sealing cover from loosening due to vibration or improper operation during operation. This stability improves the reliability of the sealing effect.

[0109] The provision of the sealing groove 34 allows the sealing material to more effectively fill the gap, thereby improving the sealing effect. Even during long-term use, the sealing performance can be maintained well, reducing the frequency of maintenance.

[0110] Through an effective sealing design, materials within the box 32 are unlikely to leak, reducing potential waste and environmental pollution. A good sealing design can effectively prevent the ingress of external dust, moisture, and other potential contaminants, reducing corrosion and damage to the internal components of the equipment, thereby improving the overall durability and service life of the equipment.

[0111] It should be noted that the design of the sealing cover and the positioning hole 37 allows for adaptation to sealing covers of different types and sizes, increasing the flexibility and applicability of the device. Users can select different types of sealing covers as needed to meet specific operating requirements.

[0112] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A self-locking sample grinding jar, comprising a supporting assembly (1) for supporting, a reciprocating assembly (2) arranged on the supporting assembly (1), and a sample preparation box (3) mounted on the reciprocating assembly (2); characterized in that: The sample preparation box (3) comprises a box body (32), a sample preparation cavity (33) is provided on the inner side of the box body (32), and one or more grinding columns (4) are installed on the inner side of the box body (32) for grinding the material; Both ends of the box body (32) are provided with a accommodating chamber, the accommodating chamber is separated from the inner side of the box body (32), and both sides of the box body (32) are provided with a through hole, and a transmission rod (35) is slidably connected to the through hole, and the transmission rod (35) is adapted to the grinding column (4); A driving assembly (36) is provided inside the accommodating chamber, and the driving assembly (36) drives the transmission rod (35) to move the grinding column (4), thereby grinding the material for sample preparation.

2. The self-locking sample grinding jar according to claim 1, characterized in that: The reciprocating assembly (2) comprises a rotating circular plate (21), one side of which is provided with a cylinder which is slidably connected to a swing arm (24).

3. The self-locking sample grinding jar according to claim 2, characterized in that: A gear is provided at the bottom of the swing arm (24), a rack (26) is meshed on the outside of the gear, a slide bar (23) is connected to the bottom of the rack (26), the slide bar (23) is mounted on the support assembly (1), a connecting portion (27) is provided on the outside of the slide bar (23), and the connecting portion (27) is connected to one side of the box body (32).

4. The self-locking sample grinding jar according to claim 1, characterized in that: The support assembly (1) includes a horizontally placed transverse plate (12), one side of the transverse plate (12) is bent upward to form a bent portion (14), a vertical plate (11) is provided in the middle of the bent portion (14), a through hole is provided on one side of the vertical plate (11), and the vertical plate (11) is connected to the circular plate through a shaft (22), and a motor is provided at the other end of the shaft (22), and the motor drives the circular plate to rotate around the shaft (22) and to make a circular motion with the swing arm (24).

5. The self-locking sample grinding jar according to claim 4, characterized in that: Two symmetrically arranged snap rings (25) are provided on one side of the bending portion (14), and the snap rings (25) are plugged into the slide rod (23). A slide groove (13) is provided in the middle of the top of the transverse plate (12), and the slide groove (13) is slidably connected to a slider (31) provided at the bottom of the box body (32).

6. The self-locking sample grinding jar according to claim 1, characterized in that: The grinding column (4) comprises two grinding blocks (42) arranged vertically, and positioning rings (43) are provided at both ends of the two grinding blocks (42). One end of the positioning rings (43) of the two grinding blocks (42) is adapted to the transmission rod (35) and cooperates with the driving assembly (36) to drive the grinding blocks (42) to move.

7. The self-locking sample grinding jar according to claim 6, characterized in that: The outer side of the grinding block (42) is provided with protrusions (44) in a ring array on the outer side of the transmission rod (35); the protrusions (44) are in contact with the material to grind the material.

8. The self-locking sample grinding jar according to claim 6, characterized in that: A sample feeding port (41) is provided on the outer side of the grinding block (42) between two protrusions (44), and the sample feeding port (41) completely passes through the grinding block (42).

9. The self-locking sample grinding jar according to claim 1, characterized in that: Positioning holes (37) are provided at diagonal positions of the frame around the top of the box body (32), and sealing grooves (34) are provided at two of the positioning holes (37). A sealing cover is provided at the top of the box body (32), and a plug-in column is provided at the bottom of the sealing cover at the positioning hole (37) for sealing the top of the box body (32).

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