Material bowl of sample grinding machine

Abstract

The material bowl comprises a bowl body, a bowl cover, an impact ring and an impact hammer, the bowl cover covers an opening in the top of the bowl body, the impact ring is movably placed in the bowl body, the impact hammer is movably placed in an inner ring of the impact ring, a lower limiting convex ring is arranged at the bottom of the bowl body, and a lower limiting groove is formed in the middle of the lower limiting convex ring. Outwards-protruding first handles are oppositely arranged on the outer wall of the bowl body, second handles are arranged at the positions, corresponding to the first handles, of the outer wall of the bowl cover, an upper limiting protruding ring is arranged on the top face of the bowl cover, and an upper limiting groove is formed in the middle of the upper limiting protruding ring. Through the arrangement of the first handle and the second handle, the problems that the material bowl is inconvenient to take and place and the bowl cover is difficult to open are solved, the operation is convenient, and the sample preparation efficiency is improved; the bowl body is firmly fixed on the crushing device of the sample grinding machine through the lower limiting convex ring and the upper limiting convex ring, so that the movement of the bowl body in the crushing process is limited, and the sample preparation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of sample preparation equipment technology, specifically a grinding mill material bowl. Background Art

[0002] A sample grinder is a common sample preparation device used to pulverize samples (for analytical samples with particle sizes of 0.2 mm and below). It consists of a main body (chassis), frame, motor, clamping device, pulverizing device, grinding bowl, and electrical control system. The equipment utilizes high-frequency vibration to create high-frequency impacts, compression, and friction between the impact hammers, impact rings, and the bowl body, thereby pulverizing the sample. Currently, most grinding bowls on the market lack safety precautions or added safety protection structures, leading to significant safety hazards during sample grinding and the handling of the grinding bowl, as detailed below:

[0003] 1. Due to the weight of the material bowls (5.5 kg for ordinary material bowls and 12.7 kg for alloy material bowls), it is extremely inconvenient to handle and place the material bowls, which can easily lead to accidents of being crushed and injured.

[0004] 2. During the grinding process, the high-frequency vibration often creates a negative pressure effect inside the grinding bowl, making it extremely inconvenient to open the bowl lid. It requires tools to pry it open, which is not only time-consuming and laborious, seriously affecting the sample preparation efficiency, but also easily damages the bowl lid.

[0005] 3. Currently, all the material bowls on the market have flat bottoms and no safety protection structure, such as a material bowl fixing structure. Therefore, during the grinding process, due to the influence of centrifugal force, the material bowl is very likely to fly off the grinding table. At best, the sample will spill, and at worst, the machine will be destroyed and people will die. The sample preparation process has a great safety hazard.

[0006] Therefore, it is necessary to develop a grinding mill mortar with higher safety. Utility Model Content

[0007] The purpose of this invention is to provide a grinding mill mortar that improves the safety of sample preparation, in order to solve the problem mentioned in the background art that the mortar is prone to flying off the grinding table during the sample preparation process, which poses a significant safety hazard.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A grinding mill mortar includes a mortar body, a mortar cover, an impact ring, and an impact hammer. The mortar body has an opening at the top, and the mortar cover is placed over the opening at the top of the mortar body. The impact ring is movably placed inside the mortar body, and the impact hammer is movably placed inside the inner ring of the impact ring. A first crushing space is formed between the outer wall of the impact ring and the inner wall of the mortar body, and a second crushing space is formed between the inner wall of the impact ring and the outer wall of the impact hammer. A lower limiting protrusion is provided at the bottom of the mortar body, and a lower limiting groove is formed in the middle of the lower limiting protrusion. A first protruding handle is provided on the outer wall of the mortar body, and a second handle is provided on the outer wall of the mortar cover corresponding to the position of the first handle. An upper limiting protrusion is provided on the top surface of the mortar cover, and an upper limiting groove is formed in the middle of the upper limiting protrusion.

[0010] Preferably, the outer peripheral wall of the top of the bowl is provided with an annular groove.

[0011] Preferably, the edge of the bowl cover extends downward to form a ring sleeve that fits the annular groove, and the ring sleeve is fitted onto the groove wall of the annular groove.

[0012] Preferably, the bottom surface of the bowl lid has an annular sealing groove corresponding to the top port of the bowl body, and a sealing ring is embedded in the sealing groove.

[0013] Preferably, the inner and outer walls of the impact ring are provided with a number of evenly distributed protrusions, and the inner wall of the bowl and the outer wall of the impact hammer are provided with a number of grooves that fit the protrusions.

[0014] Preferably, the protrusion is a spherical protrusion structure and the groove is a circular arc groove structure.

[0015] Preferably, a clamping groove is formed between the first handle and the second handle.

[0016] Preferably, both the lower limiting protrusion and the upper limiting protrusion are circular.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By setting up a first handle and a second handle, the problems of inconvenience in picking up and putting down the mortar and difficulty in opening the mortar lid are solved, making operation convenient and improving sample preparation efficiency; the lower limit convex ring and the upper limit convex ring firmly fix the mortar body on the grinding machine crushing device to limit the movement of the mortar body during the crushing process, thereby improving the safety of sample preparation.

[0019] 2. The inner and outer walls of the impact ring are provided with several evenly distributed protrusions. The inner wall of the bowl and the outer wall of the impact hammer are provided with several grooves that fit the protrusions. The protrusions are spherical protrusions and the grooves are circular arc grooves. During impact, the cooperation between the grooves and the protrusions makes the sample impact more uniform and the crushing effect better.

[0020] 3. An annular sealing groove is provided on the bottom of the bowl lid corresponding to the top port of the bowl body. A sealing ring is embedded in the sealing groove to seal the bowl body and prevent the crushed sample inside the bowl from leaking out of the bowl body. Attached Figure Description

[0021] Figure 1 This is a side view of the grinding bowl of the sample mill of this utility model;

[0022] Figure 2 This is a top view of the grinding bowl of the present invention.

[0023] The markings in the image correspond to the following:

[0024] 1. Bowl body; 2. Bowl lid; 3. Impact ring; 4. Impact hammer; 5. First crushing space; 6. Second crushing space; 7. Lower limit protrusion ring; 8. Lower limit groove; 9. First handle; 10. Second handle; 11. Upper limit protrusion ring; 12. Upper limit groove; 13. Ring groove; 14. Ring sleeve; 15. Sealing ring; 16. Clamping groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-2 A grinding mill mortar includes a mortar body 1, a mortar cover 2, an impact ring 3, and an impact hammer 4. The top of the mortar body 1 is open. The mortar cover 2 is placed over the top opening of the mortar body 1. The impact ring 3 is movably placed inside the mortar body 1, and the impact hammer 4 is movably placed inside the inner ring of the impact ring 3. A first grinding space 5 is formed between the outer wall of the impact ring 3 and the inner wall of the mortar body 1, and a second grinding space 6 is formed between the inner wall of the impact ring 3 and the outer wall of the impact hammer 4. The first grinding space 5 and the second grinding space 6 are used to contain the sample. By utilizing the high-frequency vibration of the equipment, high-frequency impact, compression, and friction can be generated between the impact hammer 4, the impact ring 3, and the mortar body 1 in the first grinding space 5 and the second grinding space 6, thereby achieving the purpose of grinding the sample.

[0027] The bottom of the bowl body 1 is provided with a lower limiting protrusion ring 7, and a lower limiting groove 8 is formed in the middle of the lower limiting protrusion ring 7. A first protruding handle 9 is provided on the outer wall of the bowl body 1, and a second handle 10 is provided on the outer wall of the bowl cover 2 corresponding to the position of the first handle 9. An upper limiting protrusion ring 11 is provided on the top surface of the bowl cover 2, and an upper limiting groove 12 is formed in the middle of the upper limiting protrusion ring 11.

[0028] In this embodiment, both the first handle 9 and the second handle 10 have through holes, which can be used as assembly positions to cooperate with other equipment. The lower limiting protrusion 7 and the upper limiting protrusion 11 are both annular. A groove 16 is formed between the first handle 9 and the second handle 10 to allow personnel to insert their fingers.

[0029] This embodiment solves the problems of inconvenient handling of the mortar and the difficulty in opening the mortar lid 2 by providing a first handle 9 and a second handle 10, making operation convenient and improving sample preparation efficiency. First, the mortar 1 can be easily picked up or put down by using the force point of the first handle 9. Second, the mortar lid 2 can be easily opened by using the clamping groove 16 between the second handle 10 and the first handle 9, saving time and effort and improving sample preparation efficiency. The mortar 1 is firmly fixed on the grinding machine crushing device (not shown) by the lower limiting protrusion ring 7 and the upper limiting protrusion ring 11. The crushing platform of the grinding machine crushing device has a circular protrusion (not shown), which restricts the movement of the mortar 1 in the front, back, left and right directions of the crushing platform during the sample preparation process, preventing the mortar 1 from flying off the crushing platform due to vertical or horizontal movement during the sample preparation process, reducing the probability of injury accidents, thereby improving sample preparation safety, and also avoiding missed detection accidents caused by sample spillage.

[0030] Please see Figure 1 The outer peripheral wall of the top of the bowl 1 is provided with an annular groove 13, and the edge of the bowl cover 2 extends downward to form an annular sleeve 14 that fits the annular groove 13. The annular sleeve 14 is fitted on the groove wall of the annular groove 13.

[0031] The bottom surface of the bowl lid 2 has an annular sealing groove corresponding to the top port of the bowl body 1, and a sealing ring 15 is embedded in the sealing groove. The sealing ring 15 seals the bowl body 1 to prevent the crushed sample inside the bowl body 1 from leaking out of the bowl body 1.

[0032] The inner and outer walls of the impact ring 3 are provided with several evenly distributed protrusions (not shown in the figure), and the inner wall of the bowl 1 and the outer wall of the impact hammer 4 are provided with several grooves (not shown in the figure) that fit the protrusions. In this embodiment, the protrusions are spherical protrusions, and the grooves are arc-shaped grooves. The diameter of the grooves is larger than the diameter of the protrusions, which facilitates the protrusions embedding into the grooves during impact. During impact, the cooperation between the grooves and the protrusions makes the sample impact more uniform and the crushing effect better.

[0033] The working principle of the sample grinding bowl of this utility model is as follows: Before the crushing operation, the bowl body 1 can be firmly fixed on the crushing platform of the sample grinding device by the lower limit convex ring 7 to prevent the bowl body 1 from moving left, right, back and forth. The clamping device (not shown in the figure) of the sample grinding device cooperates with the lower limit groove 8 of the upper limit convex ring 11 to fix the bowl body 1 to prevent the bowl body 1 from moving up and down, thereby preventing the bowl body 1 from flying out of the crushing platform. The sample is crushed by high-frequency impact, squeezing and friction between the impact hammer 4, impact ring 3 and bowl body 1. Then the clamping device is separated from the bowl body 1, and the fingers are inserted into the clamping groove 16 between the first handle 9 and the second handle 10 to easily pry open the bowl cover 2.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding mill mortar, characterized in that: The device includes a bowl (1), a bowl lid (2), an impact ring (3), and an impact hammer (4). The bowl (1) has an opening at the top, and the bowl lid (2) covers the opening at the top of the bowl (1). The impact ring (3) is movably placed inside the bowl (1), and the impact hammer (4) is movably placed inside the inner ring of the impact ring (3). A first crushing space (5) is formed between the outer wall of the impact ring (3) and the inner wall of the bowl (1). The inner wall of the impact ring (3) and the outer wall of the impact hammer (4) are connected. A second crushing space (6) is formed between the walls. A lower limit protrusion (7) is provided at the bottom of the bowl (1). A lower limit groove (8) is formed in the middle of the lower limit protrusion (7). A first protruding handle (9) is provided on the outer wall of the bowl (1). A second handle (10) is provided on the outer wall of the bowl (2) corresponding to the position of the first handle (9). An upper limit protrusion (11) is provided on the top surface of the bowl (2). An upper limit groove (12) is formed in the middle of the upper limit protrusion (11).

2. The grinding mill mortar according to claim 1, characterized in that: The outer peripheral wall of the top of the bowl (1) is provided with an annular groove (13).

3. The grinding mill mortar according to claim 2, characterized in that: The edge of the bowl cover (2) extends downward to form a ring sleeve (14) that fits the annular groove (13), and the ring sleeve (14) is fitted on the groove wall of the annular groove (13).

4. The grinding mill mortar according to claim 1, characterized in that: The bottom surface of the bowl lid (2) is provided with an annular sealing groove at the top port of the bowl body (1), and a sealing ring (15) is embedded in the sealing groove.

5. The grinding mill mortar according to claim 1, characterized in that: The inner and outer walls of the impact ring (3) are provided with several evenly distributed protrusions, and the inner wall of the bowl (1) and the outer wall of the impact hammer (4) are provided with several grooves that fit the protrusions.

6. The grinding mill mortar according to claim 5, characterized in that: The protrusion is a spherical protrusion structure, and the groove is a circular arc groove structure.

7. The grinding mill mortar according to claim 1, characterized in that: A groove (16) is formed between the first handle (9) and the second handle (10).

8. The grinding mill mortar according to claim 1, characterized in that: Both the lower limit protrusion (7) and the upper limit protrusion (11) are circular.

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