Sample mixing instrument

Abstract

The invention relates to the technical field of design of analytical instruments, and discloses a sample mixing instrument. Comprising a mixing instrument, a rotating disc fixedly connected to the output end of the mixing instrument through a coupler, a positioning column fixedly connected to the outer surface of the rotating disc, a first buffer pad arranged on the outer surface of the positioning column in a sleeving mode, and a sample loading disc arranged on the side, away from the rotating disc, of the first buffer pad. According to the invention, through the uniform mixing mechanism, samples in the crucible can be uniformly mixed, and the crucible can be simultaneously subjected to buffer fitting and compression sealing through a visual material; according to the locking mechanism, the fixing disc can be tightly attached to the top of the cover plate without using complex installation tools such as bolts, then the clamping blocks can be driven to clamp the positioning columns, and the clamping blocks are automatically limited through cooperation of all components in the limiting assembly, so that the sealing cover and the crucible can be tightly pressed only by pressing the fixing disc without using the bolts, and the sealing effect of the crucible is improved. And tight contact between the sealing cover and the crucible in the uniform mixing process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of analytical instrument design, in particular to a sample mixer. Background Art

[0002] In recent years, sample mixers have played a vital role in spectral analysis. Their main purpose is to ensure that the sample reaches a uniform state before analysis, thereby improving the accuracy and reliability of the analysis results. The components in the sample are evenly distributed through vibration, shaking, rotation, etc., avoiding test errors caused by uneven sample mixing. Uniform samples can ensure that the results of each analysis are consistent and repeatable.

[0003] In the process of installing the sample tray, some sample mixers in the prior art usually need to use bolts to install the sample tray on the rotor surface of the mixer. Bolt fixing has strong versatility, but the process of installing and removing the sample tray is cumbersome, time-consuming and labor-intensive, and the bolts may become loose due to centrifugal force during the process of following the rotation of the positioning shaft. The loosening of the bolts will directly lead to the failure of the sealing cover, causing sample leakage and contamination, which will not only affect the normal progress of the experiment or production process, but also may cause environmental pollution and waste of resources. Summary of the invention

[0004] In view of the above problems existing in the existing sample mixers, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a sample mixing instrument.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: The mixing mechanism comprises an equipment body, a turntable fixedly connected to the output end of the equipment body through a coupling, a positioning column fixedly connected to the outer surface of the turntable, a first buffer pad sleeved on the outer surface of the positioning column, a sample loading plate arranged on the side of the first buffer pad away from the turntable, a plurality of crucibles arranged on the inner surface of the sample loading plate, a sealing cover arranged on the outer end surface of the crucible, a second buffer pad arranged on the other side of the sealing cover, a cover plate arranged on the other side of the second buffer pad, a thread line opened on the outer surface of the positioning column, and a control panel adapted to be installed on the top of the equipment body; The locking mechanism includes a bearing component arranged on the outside of the equipment body, a conducting component arranged on one side of the inner wall of the bearing component, a clamping component arranged on the other side of the inner wall of the bearing component and used in conjunction with the conducting component, and a limiting component used in conjunction with the conducting component.

[0007] As a preferred solution of the sample mixer described in the present invention, the first buffer pad, sample loading tray, sealing cover, second buffer pad and cover plate are sequentially sleeved on the outer surface of the positioning column, and the crucibles are distributed in a circular array and embedded in the inner surface of the sample loading tray.

[0008] As a preferred solution of the sample mixer described in the present invention, the supporting component includes an installation box arranged on the outside of the equipment body and used in conjunction with the cover plate, a fixed plate fixedly connected to the outer surface of the installation box, a connecting groove opened on the inner wall of the fixed plate, and a limiting groove opened on the inner wall of the installation box away from the connecting groove, and the limiting groove extends to the bottom of the outer surface of the installation box.

[0009] As a preferred solution of the sample mixer described in the present invention, the transmission component includes a rack slidably connected to the inner wall of the limiting groove, a first spur gear meshed with the outer surface of the rack, a driving shaft fixedly connected to the inner surface of the first spur gear, a first bevel gear fixedly sleeved on the outer surface of the driving shaft, a second bevel gear meshed with the outer surface of the first bevel gear, a driven shaft fixedly connected to the inner surface of the second bevel gear, and a second spur gear fixedly sleeved on the inner surface of the driven shaft, the outer end surface of the rack extends to the outside of the mounting box through the limiting groove, the connecting groove is connected to the inner cavity of the fixed disk, and the outer end surface of the driving shaft is fixedly mounted on the inner wall of the mounting box through a bearing.

[0010] As a preferred solution of the sample mixer described in the present invention, the clamping assembly includes a toothed disc meshed with the outer surface of the second spur gear, arc grooves respectively opened on the three side surfaces of the toothed disc, a support column slidably arranged on the inner wall of the arc groove, a clamping block fixedly installed on the top of the support column and used in conjunction with the positioning column, and an anti-slip gasket fixedly connected to the inner surface of the clamping block and used in conjunction with the thread line, the teeth of the second spur gear extend to the inner cavity of the fixed disc through the connecting groove and mesh with the toothed disc, the outer end face of the second bevel gear is fixedly installed on the bottom of the inner wall of the mounting box through a bearing, and the toothed disc is fixedly installed on the inner wall of the fixed disc through a bearing.

[0011] As a preferred solution of the sample mixer described in the present invention, the clamping assembly further comprises a top cover fixedly mounted on the inner surface of the fixed disk, guide grooves provided on the three side surfaces of the top cover, a slider fixedly connected to the outer surface of the support column and used in conjunction with the guide groove, and a plug hole provided at the bottom of the fixed disk and used in conjunction with the positioning column, wherein the outer surface of the slider is in sliding contact with the inner wall of the guide groove, and the plug hole extends through to the top of the top cover.

[0012] As a preferred solution of the sample mixer described in the present invention, the limiting assembly includes a support rod slidably connected to the inner surface of the mounting box, a first friction plate fixedly connected to the outer end surface of the support rod, and a second friction plate fixedly connected to the outer surface of the drive shaft and used in conjunction with the first friction plate.

[0013] As a preferred solution of the sample mixer described in the present invention, the limiting assembly also includes an extrusion plate fixedly connected to the surface of the rack on one side close to the support rod, and a connecting disk fixedly sleeved on the outer surface of the support rod and used in conjunction with the extrusion plate.

[0014] As a preferred solution of the sample mixer of the present invention, the surface of the extrusion plate is parallel to the surface of the connection disk, and the outer surface of the extrusion plate is in sliding contact with the outer surface of the connection disk.

[0015] As a preferred solution of the sample mixer described in the present invention, the limiting assembly also includes a spring which is sleeved on the outer surface of the support rod and used in conjunction with the connecting disk, one end of the spring is fixedly connected to the inner wall of the mounting box, and the other end of the spring is fixedly connected to the outer surface of the connecting disk.

[0016] The beneficial effects of the present invention are as follows: through the mixing mechanism, not only can the sample in the crucible be mixed, but also the crucible can be buffered, fitted and pressed and sealed at the same time through the visual material, so as to achieve not only the effect of reducing physical damage to the sample, but also the effect of avoiding splashing or evaporation of the sample during the mixing process, and at the same time, it is convenient for the operator to observe the mixing state of the sample in real time, timely discover and adjust the mixing conditions, so as to achieve the effect of ensuring that the sample is mixed more evenly; through the locking mechanism, it is possible to place the fixed plate tightly against the top of the cover plate without using complex installation tools such as bolts, so as to drive the clamping block to clamp the positioning column, and through the cooperation between the various components in the limiting assembly, the clamping block is automatically limited, so as to achieve the effect of pressing the sealing cover and the crucible without using bolts, and ensuring close contact between the sealing cover and the crucible during the mixing process, so as to achieve the effect of avoiding the sealing failure of the sealing cover due to centrifugal force loosening when the bolts rotate with the positioning shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 Schematic diagram of the internal structure of the mixing mechanism in the present invention.

[0019] Figure 3 It is a schematic diagram of the overall structure of the locking mechanism in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure inside the locking mechanism of the present invention.

[0021] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged local structure at point A in the middle.

[0022] Figure 6 It is a schematic structural diagram of the overall locking mechanism of the present invention from another perspective.

[0023] In the figure: 100, mixing mechanism; 101, equipment body; 102, turntable; 103, positioning column; 104, first buffer pad; 105, sample tray; 106, crucible; 107, sealing cover; 108, second buffer pad; 109, cover plate; 110, thread line; 111, control panel; 200, locking mechanism; 201, bearing assembly; 201a, installation box; 201b, fixing plate; 201c, connecting groove; 201d, limiting groove; 202, transmission assembly; 202a, rack; 202b, first straight gear; 202c, driving shaft; 202d, transmission assembly; 202e, transmission assembly; 202f, transmission assembly; 202g, transmission assembly; 202h ... 02d, first bevel gear; 202e, second bevel gear; 202f, driven shaft; 202g, second spur gear; 203, clamping assembly; 203a, toothed disc; 203b, arc groove; 203c, support column; 203d, clamping block; 203e, anti-skid gasket; 203f, top cover; 203g, guide groove; 203h, slider; 203i, plug-in hole; 204, limit assembly; 204a, support rod; 204b, first friction plate; 204c, second friction plate; 204d, extrusion plate; 202ge, fixed plate; 202gf, spring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Example 1 Reference Figure 1 and Figure 2 , as an embodiment of the present invention, provides a sample mixing device, the device comprising: The mixing mechanism 100 includes a device body 101, a turntable 102 fixedly connected to the output end of the device body 101 through a coupling, a positioning column 103 fixedly connected to the outer surface of the turntable 102, a first buffer pad 104 sleeved on the outer surface of the positioning column 103, a sample loading plate 105 arranged on the side of the first buffer pad 104 away from the turntable 102, a plurality of crucibles 106 arranged on the inner surface of the sample loading plate 105, a sealing cover 107 arranged on the outer end surface of the crucible 106, a second buffer pad 108 arranged on the other side of the sealing cover 107, a cover plate 109 arranged on the other side of the second buffer pad 108, a thread line 110 opened on the outer surface of the positioning column 103, and a control panel 111 adapted to be installed on the top of the device body 101; It should be noted that the motor output end inside the device body 101 is connected to the center of the turntable 102 through a coupling. When the motor rotates, it can drive the turntable 102 to rotate. The mixing vibration frequency of the device body 101 is 2300~3600HZ, and the commonly used mixing vibration frequency is: 3300HZ The mixing time is 0-3600S, the voltage is 203iV, and the power is 60W. The first buffer pad 104 is made of ethylene-vinyl acetate copolymer material, which has good elasticity and cushioning performance, is easy to cut and install, and has certain waterproofness and chemical resistance. The sample loading plate 105 is used to limit the crucible 106, so as to avoid the position of the crucible 106 from shifting. The sealing cover 107 is used to seal the crucible 106 to prevent cross contamination between different samples and ensure the accuracy of the experimental results. It can also prevent the sample from spilling during the mixing process. The sealing cover 107 is made of acrylic material with a light transmittance of more than 92% and good sealing performance. The second buffer pad 108 is made of acrylic material with good elasticity and cushioning performance, and a light transmittance of more than 80%. , and the thermoplastic polyurethane material has good tolerance to most chemicals. Through the cooperation of the first buffer pad 104 and the second buffer pad 108, it can absorb and disperse the impact and vibration generated in the mixing process, and reduce physical damage to the sample. The cover plate 109 is used to press the first buffer pad 104, the sample loading plate 105 crucible 106, the sealing cover 107 and the second buffer pad 108 on the turntable 102, so that the turntable 102 can drive it to rotate synchronously. The staff can, according to the needs of sample mixing, the sealing cover 107 and the cover plate 109 with better light transmittance can effectively prevent the sample from splashing or evaporating during the mixing process, and can also facilitate the operator to observe the mixing state of the sample in real time, timely discover and adjust the mixing conditions, and adjust the vibration frequency and time of the mixing through the control panel 111.

[0029] Specifically, the first buffer pad 104 , the sample tray 105 , the sealing cover 107 , the second buffer pad 108 and the cover plate 109 are sequentially sleeved on the outer surface of the positioning column 103 , and the crucibles 106 are embedded in a circular array and distributed on the inner surface of the sample tray 105 .

[0030] It should be further explained that the sample tray 105 can carry a maximum of 60 crucibles 106 at a time, and the maximum capacity of the crucible 106 is 5 ml.

[0031] When in use, place the sample in the crucible 106, then place the crucible 106 on the inner surface of the sample tray 105, and sequentially sleeve the first buffer pad 104, the sample tray 105, the sealing cover 107, the second buffer pad 108 and the cover plate 109 on the outer surface of the positioning column 103, and tighten the bolts on the surface of the thread line 110 so that the bolts press the sealing cover 107 and the crucible 106 tightly; When setting parameters: press the plus key or minus key on the surface of the control panel 111, the number changes continuously, press the plus key or minus key, the number changes instantly, after the parameters are set, press the start key to make the equipment body 101 run according to the set parameters. During the operation of the equipment body 101, the operator adjusts the mixing vibration frequency and time through the control panel 111 according to the sample mixing requirements; When the sample needs to be taken out after the mixing is completed, press the stop button to stop the equipment body 101 and retain the running mixing frequency and time parameters so that it can be directly operated according to the parameters when it is started next time. After loosening the bolts, remove the cover plate 109, the second buffer pad 108, the sealing cover 107, the sample tray 105 and the first buffer pad 104 in turn.

[0032] In summary, through the mixing mechanism 100, not only can the sample in the crucible 106 be mixed, but the crucible 106 can also be buffered, fitted and compressed and sealed at the same time through the visual material, so as to not only reduce the physical damage to the sample, but also avoid the sample from splashing or evaporating during the mixing process. At the same time, it is also convenient for the operator to observe the mixing state of the sample in real time, and promptly discover and adjust the mixing conditions to ensure that the sample is mixed more evenly.

[0033] Example 2 Reference Figure 3~Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that it provides a locking mechanism 200 that can press the sealing cover 107 and the crucible 106 together by only pressing the fixing plate 201b without using complicated installation tools such as bolts.

[0034] The locking mechanism 200 includes a bearing assembly 201 disposed on the outside of the device body 101, a conducting assembly 202 disposed on one side of the inner wall of the bearing assembly 201, a clamping assembly 203 disposed on the other side of the inner wall of the bearing assembly 201 and used in conjunction with the conducting assembly 202, and a limiting assembly 204 used in conjunction with the conducting assembly 202.

[0035] It should be noted that after the supporting component 201 presses the cover 109, the limiting component 204 can cooperate with the conducting component 202 to drive the clamping component 203 to lock the supporting component 201, so as to prevent the cover 109 from being accidentally opened during the mixing process, causing the sample to splash and pollute the laboratory environment.

[0036] Furthermore, the supporting component 201 includes an installation box 201a arranged on the outside of the equipment body 101 and used in conjunction with the cover plate 109, a fixed plate 201b fixedly connected to the outer surface of the installation box 201a, a connecting groove 201c opened on the inner wall of the fixed plate 201b, and a limiting groove 201d opened on the inner wall of the installation box 201a away from the connecting groove 201c, and the limiting groove 201d extends to the bottom of the outer surface of the installation box 201a.

[0037] It should be explained that the limiting groove 201d is used to limit the rack 202a to prevent the rack 202a from deflecting or falling off.

[0038] Among them, the transmission component 202 includes a rack 202a slidably connected to the inner wall of the limiting groove 201d, a first spur gear 202b meshed with the outer surface of the rack 202a, a driving shaft 202c fixedly connected to the inner surface of the first spur gear 202b, a first bevel gear 202d fixedly sleeved on the outer surface of the driving shaft 202c, a second bevel gear 202e meshed with the outer surface of the first bevel gear 202d, a driven shaft 202f fixedly connected to the inner surface of the second bevel gear 202e, and a second spur gear 202g fixedly sleeved on the inner surface of the driven shaft 202f, the outer end surface of the rack 202a extends to the outside of the mounting box 201a through the limiting groove 201d, the connecting groove 201c is connected to the inner cavity of the fixed disk 201b, and the outer end surface of the driving shaft 202c is fixedly mounted on the inner wall of the mounting box 201a through a bearing.

[0039] It should be explained that when the rack 202a moves to the maximum stroke, it can drive the first spur gear 202b to rotate 380°, so that the first spur gear 202b rotates through the driving shaft 202c to drive the first bevel gear 202d, the second bevel gear 202e and the second spur gear 202g to rotate at the same angle.

[0040] Preferably, the clamping assembly 203 includes a toothed disc 203a meshed with the outer surface of the second spur gear 202g, arc grooves 203b respectively opened on the three side surfaces of the toothed disc 203a, a support column 203c slidably arranged on the inner wall of the arc groove 203b, a clamping block 203d fixedly installed on the top of the support column 203c and used in conjunction with the positioning column 103, and an anti-slip gasket 203e fixedly connected to the inner surface of the clamping block 203d and used in conjunction with the thread line 110. The teeth of the second spur gear 202g extend to the inner cavity of the fixed disk 201b through the connecting groove 201c and mesh with the toothed disc 203a. The outer end surface of the second bevel gear 202e is fixedly installed on the bottom of the inner wall of the installation box 201a through a bearing, and the toothed disc 203a is fixedly installed on the inner wall of the fixed disk 201b through a bearing.

[0041] It should be noted that the clamping assembly 203 also includes a top cover 203f fixedly mounted on the inner surface of the fixed disk 201b, a guide groove 203g opened on the three side surfaces of the top cover 203f, a slider 203h fixedly connected to the outer surface of the support column 203c and used in conjunction with the guide groove 203g, and a plug hole 203i opened at the bottom of the fixed disk 201b and used in conjunction with the positioning column 103. The outer surface of the slider 203h is in sliding contact with the inner wall of the guide groove 203g, and the plug hole 203i extends through to the top of the top cover 203f.

[0042] It should be further explained that when the second spur gear 202g rotates 380°, it can drive the toothed disc 203a to rotate 110°. When the toothed disc 203a rotates, it can drive the support column 203c to move through the arc groove 203b. Through the cooperation of the guide groove 203g and the slider 203h, the support column 203c is limited, so that the support column 203c drives the clamping block 203d and the anti-skid pad 203e to move linearly to a position close to the plug hole 203i. The plug hole 203i is used to sleeve the fixing plate 201b on the outer surface of the positioning column 103. The toothed disc 203a When rotated to the maximum stroke, the three clamping blocks 203d will drive the anti-skid gasket 203e to retract to a position that is tightly fitted with the thread 110 on the outer surface of the positioning column 103, and the three clamping blocks 203d will form a closed tube whose inner diameter is equal to the outer diameter of the positioning column 103. The anti-skid gasket 203e is made of polyurethane PU material with strong elastic deformation ability, good resilience and fatigue resistance, and a high friction coefficient, which allows the anti-skid gasket 203e to be squeezed by the clamping blocks 203d and embedded in the thread line 110, thereby greatly increasing the stability of the installation box 201a.

[0043] Furthermore, the limiting assembly 204 includes a support rod 204a slidably connected to the inner surface of the mounting box 201a, a first friction plate 204b fixedly connected to the outer end surface of the support rod 204a, and a second friction plate 204c fixedly connected to the outer surface of the driving shaft 202c and used in conjunction with the first friction plate 204b.

[0044] The first friction plate 204b and the second friction plate 204c are both made of carbon fiber material with strong friction and high quality. When the first friction plate 204b and the second friction plate 204c are in contact, strong friction can be generated, making it difficult for the drive shaft 202c to rotate.

[0045] Specifically, the limiting assembly 204 further includes an extrusion plate 204d fixedly connected to a surface of the rack 202a on one side close to the support rod 204a, and a connection disk 204e fixedly sleeved on an outer surface of the support rod 204a and used in conjunction with the extrusion plate 204d.

[0046] Preferably, the surface of the extrusion plate 204d is parallel to the surface of the connection disk 204e, and the outer surface of the extrusion plate 204d is in sliding contact with the outer surface of the connection disk 204e.

[0047] Among them, the angle between the extrusion plate 204d and the rack 202a is 10°. When the rack 202a drives the extrusion plate 204d to move downward, it can drive the extrusion plate 204d to drive the connecting disk 204e to drive the support rod 204a and the first friction plate 204b to be squeezed in the direction away from the second friction plate 204c, so as to release the limit on the drive shaft 202c. When the rack 202a rises to the maximum stroke, the spring 204f will use the reaction force to squeeze the connecting disk 204e and the support rod 204a in the direction close to the second friction plate 204c, so that the support rod 204a drives the first friction plate 204b to contact the second friction plate 204c, and limit the drive shaft 202c.

[0048] It should be further explained that the limiting assembly 204 also includes a spring 204f which is sleeved on the outer surface of the support rod 204a and used in conjunction with the connecting disk 204e. One end of the spring 204f is fixedly connected to the inner wall of the installation box 201a, and the other end of the spring 204f is fixedly connected to the outer surface of the connecting disk 204e.

[0049] When in use, align the plug hole 203i with the positioning column 103, sleeve the fixing plate 201b on the outer surface of the positioning column 103, and manually control the fixing plate 201b to press the cover plate 109, and push the rack 202a and the extrusion plate 204d upward through the reaction force of the cover plate 109. When the rack 202a moves upward to the maximum stroke, it drives the first spur gear 202b to rotate 380°, so that the first spur gear 202b rotates through the driving shaft 202c to drive the first bevel gear 202d, the second bevel gear 202e and the second spur gear 202g to rotate at the same angle, and then the second spur gear 202g drives the toothed disc 203a to rotate 110°, so that the toothed disc 203a drives the support column 203c to move through the arc groove 203b, and through the guide groove 2 03g cooperates with the slider 203h to limit the support column 203c, so that the support column 203c drives the clamping block 203d and the anti-skid pad 203e to move linearly to a position close to the plug hole 203i. When the toothed disc 203a rotates to the maximum stroke, the three clamping blocks 203d drive the anti-skid pad 203e to retract to a position that is tightly fitted with the thread 110 on the outer surface of the positioning column 103, and the three clamping blocks 203d drive the anti-skid pad 203e to form a closed tube to clamp the positioning column 103, so that the anti-skid pad 203e can be squeezed by the clamping block 203d and embedded in the thread line 110, so as to prevent the installation box 201a from moving longitudinally due to the centrifugal force when the turntable 102 rotates, thereby greatly increasing the stability of the installation box 201a. When the rack 202a drives the extrusion plate 204d to rise to the maximum stroke, the spring 204f will use the reaction force to squeeze the connecting plate 204e and the support rod 204a in the direction close to the second friction plate 204c, so that the support rod 204a drives the first friction plate 204b to contact the second friction plate 204c, and limits the driving shaft 202c to prevent the driving shaft 202c from rotating, so as to achieve the effect of limiting the clamping block 203d; When the sample needs to be taken out after mixing is completed, press the stop button and pull the support rod 204a, so that the support rod 204a drives the first friction plate 204b and the second friction plate 204c to disengage, and drives the connecting plate 204e and the extrusion plate 204d to disengage, and slightly pull up the installation box 201b, so that the rack 202a falls a certain distance by its own gravity, so as to release the clamping block 203d from clamping the positioning column 103, so that the sample can be taken out.

[0050] In summary, through the locking mechanism 200, the fixing plate 201b can be pressed tightly against the top of the cover plate 109 without using complex installation tools such as bolts, so that the clamping block 203d can be driven to clamp the positioning column 103, and the clamping block 203d can be automatically limited through the cooperation between the various components in the limiting assembly 204, so that the sealing cover 107 and the crucible 106 can be pressed tightly without using bolts only by pressing the fixing plate 201b, ensuring close contact between the sealing cover 107 and the crucible 106 during the mixing process, so as to avoid the sealing failure of the sealing cover 107 due to loosening due to centrifugal force when the bolts rotate with the positioning shaft 103.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sample mixer, characterized in that: include, A mixing mechanism (100), comprising a device body (101), a turntable (102) fixedly connected to an output end of the device body (101) via a coupling, a positioning column (103) fixedly connected to an outer surface of the turntable (102), a first buffer pad (104) sleeved on the outer surface of the positioning column (103), a sample loading plate (105) arranged on a side of the first buffer pad (104) away from the turntable (102), a plurality of crucibles (106) arranged on the inner surface of the sample loading plate (105), a sealing cover (107) arranged on an outer end surface of the crucible (106), a second buffer pad (108) arranged on the other side of the sealing cover (107), a cover plate (109) arranged on the other side of the second buffer pad (108), a threaded line (110) opened on the outer surface of the positioning column (103), and a control panel (111) adapted to be mounted on the top of the device body (101); The locking mechanism (200) comprises a bearing assembly (201) arranged on the outside of the device body (101), a conducting assembly (202) arranged on one side of the inner wall of the bearing assembly (201), a clamping assembly (203) arranged on the other side of the inner wall of the bearing assembly (201) and used in conjunction with the conducting assembly (202), and a limiting assembly (204) used in conjunction with the conducting assembly (202).

2. The sample mixer according to claim 1, characterized in that: The first buffer pad (104), the sample loading plate (105), the sealing cover (107), the second buffer pad (108) and the cover plate (109) are sequentially sleeved on the outer surface of the positioning column (103), and the crucibles (106) are distributed in a circular array on the inner surface of the sample loading plate (105).

3. The sample mixer according to claim 2, characterized in that: The bearing assembly (201) comprises an installation box (201a) arranged on the outside of the device body (101) and used in conjunction with the cover plate (109), a fixing plate (201b) fixedly connected to the outer surface of the installation box (201a), a connecting groove (201c) provided on the inner wall of the fixing plate (201b), and a limiting groove (201d) provided on the inner wall of the installation box (201a) away from the connecting groove (201c), wherein the limiting groove (201d) extends through the bottom of the outer surface of the installation box (201a).

4. The sample mixer according to claim 3, characterized in that: The transmission component (202) comprises a rack (202a) slidably connected to the inner wall of the limiting groove (201d), a first spur gear (202b) meshed with the outer surface of the rack (202a), a driving shaft (202c) fixedly connected to the inner surface of the first spur gear (202b), a first bevel gear (202d) fixedly sleeved on the outer surface of the driving shaft (202c), a second bevel gear (202e) meshed with the outer surface of the first bevel gear (202d), and a first bevel gear (202c) fixedly connected to the inner surface of the first bevel gear (202c). A driven shaft (202f) is provided on the inner surface of the second bevel gear (202e), and a second spur gear (202g) is fixedly sleeved on the inner surface of the driven shaft (202f); the outer end surface of the rack (202a) extends to the outside of the installation box (201a) through the limiting groove (201d); the connecting groove (201c) is connected to the inner cavity of the fixed disk (201b); and the outer end surface of the driving shaft (202c) is fixedly mounted on the inner wall of the installation box (201a) through a bearing.

5. The sample mixer according to claim 4, characterized in that: The clamping assembly (203) comprises a toothed disc (203a) meshed with the outer surface of the second spur gear (202g), arc grooves (203b) respectively provided on three side surfaces of the toothed disc (203a), a support column (203c) slidably arranged on the inner wall of the arc groove (203b), a clamping block (203d) fixedly mounted on the top of the support column (203c) and used in conjunction with the positioning column (103), and a clamping block (203d) fixedly connected to the inner surface of the clamping block (203d). The second spur gear (202g) has a non-slip gasket (203e) for use with the threaded line (110), the teeth of the second spur gear (202g) extend through the connecting groove (201c) to the inner cavity of the fixed disk (201b) and mesh with the toothed disk (203a), the outer end surface of the second bevel gear (202e) is fixedly mounted on the bottom of the inner wall of the mounting box (201a) via a bearing, and the toothed disk (203a) is fixedly mounted on the inner wall of the fixed disk (201b) via a bearing.

6. The sample mixer according to claim 5, characterized in that: The clamping assembly (203) further comprises a top cover (203f) fixedly mounted on the inner surface of the fixed disk (201b), guide grooves (203g) provided on three side surfaces of the top cover (203f), a slider (203h) fixedly connected to the outer surface of the support column (203c) and used in conjunction with the guide groove (203g), and a plug hole (203i) provided at the bottom of the fixed disk (201b) and used in conjunction with the positioning column (103), wherein the outer surface of the slider (203h) is in sliding contact with the inner wall of the guide groove (203g), and the plug hole (203i) extends through to the top of the top cover (203f).

7. The sample mixer according to claim 6, characterized in that: The limit assembly (204) comprises a support rod (204a) slidably connected to the inner surface of the installation box (201a), a first friction plate (204b) fixedly connected to the outer end surface of the support rod (204a), and a second friction plate (204c) fixedly connected to the outer surface of the drive shaft (202c) and used in conjunction with the first friction plate (204b).

8. The sample mixer according to claim 7, characterized in that: The limiting assembly (204) further comprises an extrusion plate (204d) fixedly connected to a surface of a side of the rack (202a) close to the support rod (204a), and a connection plate (204e) fixedly sleeved on an outer surface of the support rod (204a) and used in conjunction with the extrusion plate (204d).

9. The sample mixer according to claim 8, characterized in that: The surface of the extrusion plate (204d) is parallel to the surface of the connection disk (204e), and the outer surface of the extrusion plate (204d) is in sliding contact with the outer surface of the connection disk (204e).

10. The sample mixer according to claim 9, characterized in that: The limiting assembly (204) further comprises a spring (204f) sleeved on the outer surface of the support rod (204a) and used in conjunction with the connecting plate (204e), one end of the spring (204f) being fixedly connected to the inner wall of the installation box (201a), and the other end of the spring (204f) being fixedly connected to the outer surface of the connecting plate (204e).

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