A mineral powder sampler configured with a pre-treatment mechanism

Abstract

The present application relates to the technical field of ore powder sampling, in particular to an ore powder sampler with a configuration pretreatment mechanism, comprising a sampling unit box, a plurality of sampling unit boxes are stacked, a top shell is installed on the top sampling unit box, an assembling component is arranged between the sampling unit box and the top shell and between two adjacent sampling unit boxes, a side groove is formed on one side of the sampling unit box, a transparent sheet is fixed in the side groove, and a paper identification sheet is inserted between the transparent sheet and the side groove; the beneficial effects are that the assembling component is used to stably stack the plurality of sampling unit boxes, the paper identification sheet and the transparent sheet are used to conveniently record and check the sampling information, the rubber pad, the plug plate and the plug handle are used to prevent the sealing plate from falling off and ensure the sealing property, the synchronous plug-in part is used to synchronously rotate the plurality of rotating shafts, and the ore powder in the plurality of sampling unit boxes can be uniformly stirred during the transfer process.

Description

Technical Field

[0001] This invention relates to the field of mineral powder sampling technology, specifically to a mineral powder sampler equipped with a pretreatment mechanism. Background Technology

[0002] In the process of mineral powder sampling, a sampler that can separately store multiple types of sampled mineral powder is needed, but existing samplers have many shortcomings. On the one hand, it is difficult to stably stack and effectively label multiple sampling units; on the other hand, the sealing plate is prone to falling off the reserved slot, which cannot guarantee the airtightness; at the same time, it is not possible to uniformly stir the mineral powder inside multiple stacked sampling unit boxes at the same time, which is not conducive to subsequent testing; in addition, when removing the sampled mineral powder, the powder residue on the inner wall is not easy to clean. Summary of the Invention

[0003] The purpose of this invention is to provide a mineral powder sampler with a pretreatment mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a mineral powder sampler with a pretreatment mechanism, comprising a sampling unit box, multiple sampling unit boxes stacked together, a top shell installed on the top sampling unit box, assembly components provided between the sampling unit box and the top shell and between two adjacent sampling unit boxes, a side groove opened on one side of the sampling unit box, a transparent sheet fixed inside the side groove, and a paper identification sheet inserted between the transparent sheet and the side groove;

[0005] The top of the sampling unit box is fitted with a cover, and the bottom of the sampling unit box is provided with an insert groove. A rotating shaft is rotatably connected between the cover and the bottom plate of the sampling unit box. Multiple blades are fixed on the surface of the rotating shaft, and a synchronization plug is provided between two adjacent rotating shafts.

[0006] A connecting bracket is fixed to the top of the top shell, and a servo motor is fixed inside the connecting bracket. The drive shaft of the servo motor is fixed to a drive handle at the bottom, and the synchronous plug at the top of the shaft is inserted into the bottom of the drive handle.

[0007] A reserved slot is provided on the other side of the sampling unit box, and a feeding port is provided on the surface of the reserved slot. A sealing plate is inserted into the inside of the reserved slot.

[0008] Two mounting brackets are installed on one side of the sampling unit box. A striking handle is inserted into the surface of the mounting bracket. A spring is installed between the striking handle and the mounting bracket, and one end of each striking handle is fixed with the same traction plate.

[0009] Preferably, the sampling unit box has a cylindrical structure, and a retaining ring is fixed to the inner wall of the sampling unit box. The cover overlaps on the retaining ring, and multiple through holes are opened on the surface of the cover. A screw is inserted into the through hole. The height of the screw is greater than the thickness of the cover. The bottom end of the screw is fixed to the top surface of the retaining ring. A washer is fitted on the top end of the screw and a nut is screwed in. The surface of the cover has a through hole for the synchronous plug to pass through.

[0010] Preferably, the assembly component includes a splicing slot and a splicing plate. The splicing slot is formed on the bottom surface of the sampling unit box. There are two splicing slots, which are symmetrically distributed about the sampling unit box. The splicing plate and the splicing slot correspond one to one. The splicing plate has a U-shaped plate structure and is fixed to the top surface of the sampling unit box. When two sampling unit boxes are stacked, the splicing plate on the top of one sampling unit box is inserted into the splicing slot on the bottom surface of the other sampling unit box. A hand-tightening screw is screwed into the slot of the splicing plate. The hand-tightening screw passes through the splicing plate and is screwed into the surface of the splicing slot.

[0011] Preferably, the height of the transparent sheet is less than the height of the side groove, and a rubber baffle is fixed to the top surface of the side groove, with the rubber baffle sandwiched between the side groove and the top surface of the transparent sheet.

[0012] Preferably, the reserved groove is an arc groove, the feeding port is an isosceles trapezoidal groove, a rubber pad is fixed on the surface of the reserved groove, the inner ring size of the rubber pad is equal to the groove size at one end of the feeding port, the rubber pad is clamped between the sealing plate and the reserved groove, a stopper is fixed on the surface of the sealing plate, the stopper is inserted into the feeding port, an installation groove is opened on the surface of the sealing plate, and an insertion port is opened on the top and bottom surfaces of the installation groove, a plug is inserted into the inside of the insertion port, and the plug is inserted into the slot opened on the surface of the reserved groove after passing through the insertion port.

[0013] Preferably, the insert has an "L"-shaped plate structure, with a slot at one end and a round hole at the other end. A guide rod is inserted into the round hole and fixed between the top and bottom surfaces of the mounting groove. A spring is sleeved on the guide rod and clamped between the two inserts. When the spring is in its initial state, the two inserts are supported by the spring.

[0014] Preferably, the synchronization plug includes a baffle, a plug block, and a rotating handle. The baffle is fixed to the top of the rotating shaft, and both ends of the rotating shaft are fitted with fixed limit rings. The two limit rings are located between the bottom plate and the cover of the sampling unit box. The rotating handle is located in the mounting groove, and the bottom surface of the rotating handle has a slot. The slot is square. The plug block is square. After the two sampling unit boxes are stacked, the plug block at the top of one sampling unit box is inserted into the slot at the bottom of the other sampling unit box.

[0015] Preferably, after the top shell is installed above the sampling unit box, the plug block on the top of the sampling unit box is inserted into the buckle groove opened on the bottom surface of the driving handle. Two retaining pieces are sleeved and fixed on the surface of the driving handle, and the two retaining pieces are respectively located on the upper and lower sides of the bottom plate of the sampling unit box.

[0016] Preferably, the mounting bracket is in a "U" - shaped plate structure. The mounting bracket is fixed to the outer wall of the sampling unit box by screws. Through holes are opened on the surface of the mounting bracket. A knocking ball is integrally formed at one end of the knocking handle. A second spring is sleeved on the rod body of the knocking handle. The second spring is fixed between the knocking head and the mounting bracket. When the second spring is in the initial state, the knocking head abuts against the outer wall of the sampling unit box.

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

[0018] The ore powder sampler with a configured pretreatment mechanism proposed by the present invention realizes the stable stacking of multiple sampling unit boxes through the assembling components, and uses the cooperation of the paper identification sheet and the transparent sheet to facilitate the recording and viewing of sampling information; with the help of structures such as rubber pads, plug plates, and insertion handles, it prevents the sealing plate from falling off and ensures the sealing performance; through the synchronous plug - in, multiple rotating shafts rotate synchronously, and the ore powder in multiple sampling unit boxes can be evenly stirred during the transfer process; with the help of structures such as the knocking handle and the second spring, it is convenient to shake off the powder on the inner wall of the sampling unit box, facilitating the extraction of the sampled ore powder. The overall design comprehensively solves the problems existing in the existing samplers and improves the efficiency and effect of the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is Figure 1 the structural cross - sectional view at A - A in

[0021] Figure 3 is Figure 2 the enlarged schematic view of the structure at B in

[0022] Figure 4 is Figure 2 the enlarged schematic view of the structure at C in

[0023] Figure 5 is Figure 2 the enlarged schematic view of the structure at D in

[0024] Figure 6 is Figure 2 the enlarged schematic view of the structure at E in

[0025] Figure 7 is Figure 3 the enlarged schematic view of the structure at F in

[0026] Figure 8This is a schematic diagram of the connection structure between the sampling unit box and the cover of the present invention;

[0027] Figure 9 This is a schematic diagram of the connection structure between the mounting frame and the traction plate of the present invention;

[0028] Figure 10 This is a schematic diagram of the connection structure between the traction plate and the striking handle of the present invention;

[0029] Figure 11 This is a schematic diagram of the connection structure between the shaft and the blades of the present invention;

[0030] Figure 12 This is a schematic diagram of the sealing plate structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the insert structure of the present invention.

[0032] In the diagram: Sampling unit box 1, splicing groove 101, splicing plate 102, hand-tightening screw 103, reserved groove 104, feeding port 105, embedding groove 106, rubber pad 107, slot 108, side groove 109, cover 2, through hole 201, retaining ring 202, through hole 203, screw 204, nut 205, rotating shaft 3, limiting ring 301, baffle 302, insert block 303, handle 304, slot 3 05, Blade 306, Sealing Plate 4, Plug Plate 401, Mounting Slot 402, Insert 403, Insert Handle 404, Guide Rod 405, Spring 1 406, Top Shell 5, Connecting Frame 501, Servo Motor 6, Drive Handle 7, Baffle 701, Buckle Slot 702, Transparent Sheet 8, Rubber Baffle 801, Paper Identification Sheet 802, Mounting Frame 9, Through Hole 901, Striking Handle 902, Spring 2 903, Traction Plate 904. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 13This invention provides a technical solution: a mineral powder sampler with a pretreatment mechanism, comprising a sampling unit box 1, multiple sampling unit boxes 1 stacked together, a top shell 5 mounted on the top sampling unit box 1, assembly components provided between the sampling unit box 1 and the top shell 5, and between two adjacent sampling unit boxes 1, a side groove 109 is provided on one side of the sampling unit box 1, a transparent sheet 8 is fixed inside the side groove 109, and a paper identification sheet 802 is inserted between the transparent sheet 8 and the side groove 109. The height of the transparent sheet 8 is less than the height of the side groove 109. A rubber baffle 801 is fixed to the top surface of the side groove 109, and the rubber baffle 801 is clamped between the side groove 109 and the top surface of the transparent sheet 8. The sampling unit box 1 has a cylindrical structure. A retaining ring 202 is fixed to the inner wall of the sampling unit box 1. The cover 2 overlaps on the retaining ring 202. Multiple through holes 203 are opened on the surface of the cover 2. A screw 204 is inserted into the through holes 203. The height of the screw 204 is greater than the thickness of the cover 2. The bottom end of 04 is fixed to the top surface of the retaining ring 202. After a washer is fitted onto the top of the screw 204, a nut 205 is screwed in. A reserved slot 104 is provided on the other side of the sampling unit box 1. A feeding port 105 is provided on the surface of the reserved slot 104. A sealing plate 4 is inserted into the inside of the reserved slot 104. The assembly component includes a splicing slot 101 and a splicing plate 102. The splicing slot 101 is provided on the bottom surface of the sampling unit box 1. There are two splicing slots 101. The two splicing slots 101 are about the sampling unit box 1. The splicing plates 102 and splicing slots 101 are symmetrically distributed and correspond one-to-one. The splicing plates 102 have a U-shaped plate structure and are fixed to the top surface of the sampling unit box 1. When two sampling unit boxes 1 are stacked, the splicing plate 102 on the top of one sampling unit box 1 is inserted into the splicing slot 101 on the bottom surface of the other sampling unit box 1. A hand screw 103 is screwed into the slot of the splicing plate 102. The hand screw 103 passes through the splicing plate 102 and is screwed into the surface of the splicing slot 101.

[0035] After the sampling unit box 1 is fitted with the cover 2, it is used to hold the sampled mineral powder. The mineral powder is fed into the sampling unit box 1 through the reserved groove 104 and the feeding port 105. The sealing plate 4 is inserted into the reserved groove 104 to seal it. Multiple sampling unit boxes 1 can be used to store different types of sampled mineral powder separately. After multiple sampling unit boxes 1 are stacked, two adjacent sampling unit boxes 1 are fixed together by the hand-tightening screws 103 through the splicing groove 101 and the splicing plate 102. The simple information of the sampled mineral powder inside the sampling unit box 1 is written on the paper label 802. The rubber baffle 801 is lifted, and the paper label 802 is inserted between the transparent sheet 8 and the side groove 109. The rubber baffle 801 is pulled back to seal between the transparent sheet 8 and the side groove 109 to prevent the paper label 802 from popping out. The information recorded on the surface of the paper label 802 can be seen through the transparent sheet 8.

[0036] To prevent the sealing plate 4 from falling off the reserved slot 104, the following was proposed:

[0037] The reserved groove 104 is an arc groove, and the feeding port 105 is an isosceles trapezoidal groove. A rubber pad 107 is fixed to the surface of the reserved groove 104. The inner ring size of the rubber pad 107 is equal to the groove size at one end of the feeding port 105. The rubber pad 107 is clamped between the sealing plate 4 and the reserved groove 104. A stopper plate 401 is fixed to the surface of the sealing plate 4 and is inserted into the feeding port 105. An installation groove 402 is opened on the surface of the sealing plate 4. An insertion port 403 is opened on both the top and bottom surfaces of the installation groove 402. An insertion handle 404 is inserted into the insertion port 403. After penetrating the insertion port 403, 404 is inserted into the slot 108 opened on the surface of the reserved slot 104; the insertion handle 404 has an "L" shaped plate structure, one end of the insertion handle 404 has a picking groove, and one end of the insertion handle 404 has a round hole, in which a guide rod 405 is inserted. The guide rod 405 is fixed between the top and bottom surfaces of the mounting slot 402. A spring 406 is sleeved on the rod body of the guide rod 405. The spring 406 is clamped between the two insertion handles 404. When the spring 406 is in the initial state, the two insertion handles 404 are supported by the spring 406.

[0038] When installing the sealing plate 4, place two fingers on the two insertion slots of the two inserts 404 respectively, close the two fingers together, pull the two inserts 404 along the guide rod 405 to compress the spring 406 and deform it. After one end of the insert 404 retracts into the insertion port 403, push the sealing plate 4 into the reserved slot 104. Release the two inserts 404, and the spring 406 will rebound and push the two inserts 404 back to their original position. After the insertion is reset, the inserts 404 are inserted into the corresponding slots 108. In this way, an anti-disengagement locking position is formed between the sealing plate 4 and the reserved slot 104.

[0039] To simultaneously achieve uniform mixing of mineral powder inside multiple stacked sampling unit boxes 1, the following approach was proposed:

[0040] A cover 2 is installed on the top of the sampling unit box 1. An embedding groove 106 is formed on the bottom surface of the sampling unit box 1. A rotating shaft 3 is rotatably connected between the cover 2 and the bottom plate of the sampling unit box 1. A plurality of blades 306 are fixed on the surface of the rotating shaft 3. A synchronous plug-in is provided between two adjacent rotating shafts 3. A through hole 201 is formed on the surface of the cover 2 for the synchronous plug-in to pass through. The synchronous plug-in includes a retaining piece 302, a plug 303 and a rotating handle 304. The retaining piece 302 is fixed at the top end of the rotating shaft 3. Limiting rings 301 are sleeved and fixed at both ends of the rotating shaft 3. The two limiting rings 301 are located between the bottom plate of the sampling unit box 1 and the cover 2. The rotating handle 304 is located in the embedding groove 106. A clamping groove 305 is formed on the bottom surface of the rotating handle 304. The clamping groove 305 is a square groove. The plug 303 is a square block. After two sampling unit boxes 1 are stacked, the plug 303 at the top of one sampling unit box 1 is inserted into the clamping groove 305 at the bottom of the other sampling unit box 1. A connecting frame 501 is fixed on the top of the top shell 5. A servo motor 6 is fixed inside the connecting frame 501. A driving handle 7 is fixed at the bottom of the driving shaft of the servo motor 6. The synchronous plug-in at the top end of the rotating shaft 3 is inserted into the bottom end of the driving handle 7. After the top shell 5 is installed above the sampling unit box 1, the plug 303 at the top of the sampling unit box 1 is inserted into a clamping groove 702 formed on the bottom surface of the driving handle 7. Two retaining pieces 701 are sleeved and fixed on the surface of the driving handle 7. The two retaining pieces 701 are located on both sides of the bottom plate of the sampling unit box 1 respectively.

[0041] The power module of the servo motor 6 is integrated in the top shell 5. After the switch of the servo motor 6 is triggered, the servo motor 6 drives the rotating shaft 3 to rotate through the driving handle 7. The plurality of rotating shafts 3 rotate synchronously after being engaged by the plug 303 and the rotating handle 304. That is, during the process of collecting and transferring the sampled ore powder in the plurality of sampling unit boxes 1, the servo motor 6 is started to uniformly stir the ore powder inside the plurality of sampling unit boxes 1, which is convenient for subsequent detection of the sampled ore powder.

[0042] In order to facilitate the extraction of the sampled ore powder inside the sampling unit box 1, the following is proposed:

[0043] Two mounting brackets 9 are installed on one side of the sampling unit box 1. A knocking handle 902 is inserted on the surface of the mounting bracket 9. A second spring 903 is installed between the knocking handle 902 and the mounting bracket 9. And the same traction plate 904 is fixed at one end of the two knocking handles 902. The mounting bracket 9 is in a "U" - shaped plate structure. The mounting bracket 9 is fixed on the outer wall of the sampling unit box 1 by screws. A through hole 901 is formed on the surface of the mounting bracket 9. A knocking ball is integrally formed at one end of the knocking handle 902. A second spring 903 is sleeved on the rod body of the knocking handle 902. The second spring 903 is fixed between the knocking head and the mounting bracket 9. When the second spring 903 is in the initial state, the knocking head abuts against the outer wall of the sampling unit box 1.

[0044] Two fingers grip the two insert handles 404 and then close them together. After the insert handles 404 are pulled out from the corresponding slots 108, the sealing plate 4 is pulled out from the reserved slot 104. With the reserved slot 104 facing down, the sampling mineral powder inside the sampling unit box 1 falls through the feeding port 105 and the reserved slot 104. The traction plate 904 is repeatedly pulled to stretch the striking handle 902 and squeeze the second spring 903 before being released. The second spring 903 rebounds and pushes the striking handle 902 to strike the sampling unit box 1. This operation is repeated, and the vibration generated by the striking shakes the powder off the inner wall of the sampling unit box 1.

[0045] The method of using the mineral powder sampler with this pretreatment mechanism is as follows:

[0046] The cover 2 is attached to the retaining ring 202 on the inner wall of the sampling unit box 1, aligning the through hole 203 on the surface of the cover 2 with the screw 204. The screw 204 is inserted into the through hole 203, and the bottom end of the screw 204 is fixed to the top surface of the retaining ring 202. After a washer is fitted onto the top of the screw 204, the nut 205 is screwed in, completing the installation of the cover 2. At this time, the sampling unit box 1 can be used to hold the sampled mineral powder. The mineral powder is fed into the sampling unit box 1 through the reserved slot 104 and the feeding port 105. When installing the sealing plate 4, two fingers are respectively gripped on the gripping slots of the two inserts 404. The two fingers are closed, pulling the two inserts 404 along the guide rod 405 to compress the spring 406, causing one end of the insert 404 to retract into the insertion port 403. Push the sealing plate 4 into the reserved groove 104. At this time, the rubber pad 107 is clamped between the sealing plate 4 and the reserved groove 104, and the plug plate 401 is inserted into the feeding port 105. Release the two insert handles 404, and the spring 406 rebounds and pushes the two insert handles 404 back to their original positions. After being reset, the insert handles 404 are inserted into the corresponding slots 108, forming an anti-disengagement locking position between the sealing plate 4 and the reserved groove 104, thus completing the installation and sealing of the sealing plate 4.

[0047] When multiple sampling unit boxes 1 are stacked, the splicing plate 102 on the top of one sampling unit box 1 is inserted into the splicing groove 101 on the bottom of another sampling unit box 1. Then, a hand-tightening screw 103 is screwed into the groove of the splicing plate 102, passing through the splicing plate 102 and then screwed onto the surface of the splicing groove 101. The two adjacent sampling unit boxes 1 are fixed together by the splicing groove 101 and the splicing plate 102. Simple information about the mineral powder sampled inside the sampling unit box 1 is written on a paper label 802. The rubber baffle 801 is lifted, and the paper label 802 is inserted between the transparent sheet 8 and the side groove 109. The rubber baffle 801 is then pulled back to seal between the transparent sheet 8 and the side groove 109 to prevent the paper label 802 from popping out. The information recorded on the surface of the paper label 802 can be seen through the transparent sheet 8.

[0048] After two sampling unit boxes 1 are stacked, the insert block 303 on the top of one sampling unit box 1 is inserted into the slot 305 at the bottom of the other sampling unit box 1, thus connecting the two adjacent rotating shafts 3. After the top shell 5 is installed above the sampling unit box 1, the insert block 303 on the top of the sampling unit box 1 is inserted into the snap-fit ​​slot 702 on the bottom surface of the drive handle 7, and the two baffles 701 on the surface of the drive handle 7 are respectively located on the upper and lower sides of the bottom plate of the sampling unit box 1. The servo motor 6 is triggered, and the servo motor 6 drives the rotating shaft 3 to rotate through the drive handle 7. Multiple rotating shafts 3 rotate synchronously after being engaged by the insert block 303 and the rotating handle 304, so as to achieve uniform stirring of the mineral powder inside multiple sampling unit boxes 1.

[0049] When removing the sampled mineral powder, hold the two inserts 404 with two fingers and close them together. After the inserts 404 are pulled out from the corresponding slots 108, pull out the sealing plate 4 from the reserved slot 104. With the reserved slot 104 facing down, the sampled mineral powder inside the sampling unit box 1 falls through the feeding port 105 and the reserved slot 104. Repeatedly pull the traction plate 904 to tension the striking handle 902, compress the second spring 903, and then release it. The second spring 903 rebounds and pushes the striking handle 902 to strike the sampling unit box 1. Repeat this operation, and the vibration generated by the striking will shake the powder off the inner wall of the sampling unit box 1.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mineral powder sampler with a pretreatment mechanism, comprising a sampling unit box (1), characterized in that: Multiple sampling unit boxes (1) are stacked, and a top shell (5) is installed on the top sampling unit box (1). Assembly components are provided between the sampling unit box (1) and the top shell (5) and between two adjacent sampling unit boxes (1). A side groove (109) is opened on one side of the sampling unit box (1). A transparent sheet (8) is fixed inside the side groove (109). A paper label (802) is inserted between the transparent sheet (8) and the side groove (109). The top of the sampling unit box (1) is fitted with a cover (2), and the bottom surface of the sampling unit box (1) is provided with an insert groove (106). A rotating shaft (3) is rotatably connected between the cover (2) and the bottom plate of the sampling unit box (1). Multiple blades (306) are fixed on the surface of the rotating shaft (3), and a synchronization plug is provided between two adjacent rotating shafts (3). A connecting bracket (501) is fixed on the top of the top shell (5). A servo motor (6) is fixed inside the connecting bracket (501). A drive handle (7) is fixed at the bottom of the drive shaft of the servo motor (6). The synchronous plug at the top of the rotating shaft (3) is inserted into the bottom of the drive handle (7). A reserved slot (104) is provided on the other side of the sampling unit box (1), and a feeding port (105) is provided on the surface of the reserved slot (104). A sealing plate (4) is inserted into the inside of the reserved slot (104). Two mounting brackets (9) are installed on one side of the sampling unit box (1). A striking handle (902) is inserted into the surface of the mounting bracket (9). A spring (903) is installed between the striking handle (902) and the mounting bracket (9). The same traction plate (904) is fixed to one end of the two striking handles (902).

2. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The sampling unit box (1) has a cylindrical structure. A retaining ring (202) is fixed on the inner wall of the sampling unit box (1). The cover (2) overlaps on the retaining ring (202). Multiple through holes (203) are opened on the surface of the cover (2). A screw (204) is inserted into the through hole (203). The height of the screw (204) is greater than the thickness of the cover (2). The bottom end of the screw (204) is fixed on the top surface of the retaining ring (202). After the top end of the screw (204) is fitted with a washer, a nut (205) is screwed on. A through hole (201) is opened on the surface of the cover (2). The through hole (201) allows the synchronous plug to pass through.

3. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The assembly component includes a splicing slot (101) and a splicing plate (102). The splicing slot (101) is opened on the bottom surface of the sampling unit box (1). There are two splicing slots (101), which are symmetrically distributed about the sampling unit box (1). The splicing plate (102) and the splicing slot (101) correspond one to one. The splicing plate (102) has a U-shaped plate structure. The splicing plate (102) is fixed on the top surface of the sampling unit box (1). When two sampling unit boxes (1) are stacked, the splicing plate (102) on the top of one sampling unit box (1) is inserted into the splicing slot (101) on the bottom surface of the other sampling unit box (1). A hand screw (103) is screwed into the slot of the splicing plate (102). The hand screw (103) passes through the splicing plate (102) and is screwed onto the surface of the splicing slot (101).

4. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The height of the transparent sheet (8) is less than the height of the side groove (109). A rubber baffle (801) is fixed on the top surface of the side groove (109), and the rubber baffle (801) is sandwiched between the side groove (109) and the top surface of the transparent sheet (8).

5. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The reserved groove (104) is an arc groove, and the feeding port (105) is an isosceles trapezoidal groove. A rubber pad (107) is fixed on the surface of the reserved groove (104). The inner ring size of the rubber pad (107) is equal to the groove size at one end of the feeding port (105). The rubber pad (107) is clamped between the sealing plate (4) and the reserved groove (104). A plug plate (401) is fixed on the surface of the sealing plate (4). The plug plate (401) is inserted into the feeding port (105). An installation groove (402) is opened on the surface of the sealing plate (4). An insertion port (403) is opened on the top and bottom surfaces of the installation groove (402). A plug handle (404) is inserted into the inside of the insertion port (403). The plug handle (404) passes through the insertion port (403) and is inserted into the slot (108) opened on the surface of the reserved groove (104).

6. A mineral powder sampler with a pretreatment mechanism according to claim 5, characterized in that: The insert (404) has an "L" shaped plate structure. One end of the insert (404) has a slot and a round hole. A guide rod (405) is inserted into the round hole. The guide rod (405) is fixed between the top and bottom surfaces of the mounting groove (402). A spring (406) is sleeved on the rod of the guide rod (405). The spring (406) is clamped between the two inserts (404). When the spring (406) is in the initial state, the two inserts (404) are supported by the spring (406).

7. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The synchronization plug includes a baffle (302), a plug (303), and a handle (304). The baffle (302) is fixed at the top of the rotating shaft (3). Both ends of the rotating shaft (3) are fitted with fixed limit rings (301). The two limit rings (301) are located between the bottom plate and the cover (2) of the sampling unit box (1). The handle (304) is located in the mounting groove (106). The bottom surface of the handle (304) is provided with a slot (305). The slot (305) is a square slot. The plug (303) is a square block. After the two sampling unit boxes (1) are stacked, the plug (303) at the top of one sampling unit box (1) is inserted into the slot (305) at the bottom of the other sampling unit box (1).

8. A mineral powder sampler with a pretreatment mechanism according to claim 7, characterized in that: After the top shell (5) is installed above the sampling unit box (1), the insert (303) on the top of the sampling unit box (1) is inserted into the slot (702) opened on the bottom surface of the drive handle (7). Two baffles (701) are fixedly fitted on the surface of the drive handle (7), and the two baffles (701) are respectively located on the upper and lower sides of the bottom plate of the sampling unit box (1).

9. A mineral powder sampler with a pretreatment mechanism according to claim 1, characterized in that: The mounting bracket (9) is in a "U" - shaped plate structure. The mounting bracket (9) is fixed to the outer wall of the sampling unit box (1) by screws. Through - holes (901) are provided on the surface of the mounting bracket (9). A tapping ball is integrally formed at one end of the tapping handle (902). A second spring (903) is sleeved on the rod body of the tapping handle (902). The second spring (903) is fixed between the tapping head and the mounting bracket (9). When the second spring (903) is in the initial state, the tapping head abuts against the outer wall of the sampling unit box (1).

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