Soil sample grinding device

Abstract

The utility model provides a soil sample grinding device which comprises a box body with a grinding cavity, a feeding hole is formed in the box body, a grinding rod is arranged in the grinding cavity, a first grinding bulge is arranged on the outer side wall of the grinding rod, and a second grinding bulge is arranged on the outer side wall of the grinding rod. A connecting rod extending out of the grinding cavity is arranged at one end of the grinding rod, a driving assembly in transmission connection with the connecting rod is further arranged on the box body, and the driving assembly drives the grinding rod to reciprocate in the axial direction of the connecting rod and rotate in the axial direction of the connecting rod in a reciprocating mode at the same time; the box body is further provided with a first inserting groove and a second inserting groove, the first inserting groove is located at the bottom of the grinding cavity and communicated with the grinding cavity, a detachable support is arranged in the first inserting groove, a screen is arranged on the support, the second inserting groove is located at the bottom of the first inserting groove and communicated with the first inserting groove, and a detachable material receiving box is arranged in the second inserting groove. The technical problem that existing grinding equipment is difficult to clean and affects reuse is solved, and the technical effects that internal residual soil samples are convenient to clean, and repeated use is convenient are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection, in particular to a soil sample grinding device. Background Art

[0002] Soil environmental monitoring involves determining environmental quality (or pollution levels) and its changing trends by measuring representative values ​​of factors affecting soil environmental quality. This includes surveys of current soil environmental quality, investigations of regional soil environmental background values, investigations of soil pollution incidents, and dynamic observations of contaminated soil. Soil environmental monitoring generally involves preparation, site selection, sampling, sample preparation, analysis and testing, and evaluation. Sample preparation involves grinding and pulverizing the soil samples obtained.

[0003] Chinese utility model patent publication number CN212681177U discloses a rapid soil grinding device for testing, comprising a grinding box, a top cover, a motor base, a motor, a grinding mechanism, a fixed frame, and a screen. The top cover is fixedly mounted on the top of the grinding box, the motor base is fixedly mounted on top of the top cover, the motor is fixedly mounted within the motor base, the grinding mechanism is fixedly mounted at the motor output end, the fixed frame is fixedly mounted on the inner wall of the grinding box, a screen is fixedly mounted at the bottom of the grinding box, and a material receiving box is slidably mounted at the bottom of the grinding box. The grinding mechanism comprises a rotating frame and a lower grinding disc. The top of the rotating frame is fixedly connected to the motor output end, and the bottom of the rotating frame is snap-fitted with an upper grinding disc. The upper grinding disc has a circular hole extending through the upper and lower walls of the middle portion, with a feed pipe fixedly mounted within the circular hole. The lower grinding disc is fixedly mounted within the fixed frame. This rapid soil grinding device features a simple structure, a compact size, a high grinding speed, and low manufacturing cost.

[0004] During the use of the rapid grinding equipment for soil testing disclosed in the above-mentioned utility model patent, the ground soil particles fall on the screen, and the soil particles with smaller particle size can pass through the screen and fall into the material receiving box, while the soil particles with particle size larger than the mesh of the screen will be retained on the screen. Since the screen is fixedly installed at the bottom of the grinding box, the soil particles retained on the screen are difficult to clean, which affects the reuse of the grinding equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a soil sample grinding device, which solves the problem in the prior art that the grinding equipment is difficult to clean and affects its reuse.

[0006] According to an embodiment of the present utility model, a soil sample grinding device includes a box body with a grinding chamber and a feed port connected to the grinding chamber is provided on the box body, a movable grinding rod is provided in the grinding chamber, a protruding first grinding protrusion is provided on the outer wall of the grinding rod, one end of the grinding rod is provided with a connecting rod extending out of the grinding chamber, and the box body is also provided with a driving assembly that is transmission-connected to the connecting rod, the driving assembly drives the grinding rod to move back and forth along the axial direction of the connecting rod while rotating back and forth around the axial direction of the connecting rod; the box body is also provided with a first slot and a second slot, the first slot is located at the bottom of the grinding chamber and is connected to the grinding chamber, a detachable bracket is provided in the first slot and a screen is provided on the bracket, the second slot is located at the bottom of the first slot and is connected to the first slot, and a detachable material receiving box is provided in the second slot.

[0007] Furthermore, the grinding rod has a hemispherical head at one end away from the connecting rod, the hemispherical head is provided with a protruding second grinding protrusion, and the grinding cavity has a hemispherical portion for accommodating the hemispherical head.

[0008] Furthermore, the grinding rod has a cavity, the connecting rod is provided with a liquid inlet channel and a liquid discharge channel respectively connected to the cavity, and the end of the connecting rod extending out of the grinding cavity is provided with two rotary joints respectively connected to the liquid inlet channel and the liquid discharge channel.

[0009] Furthermore, the driving assembly includes a movable rod sleeved on a rotating disk on the movable rod, a mounting bracket is provided on the box body, a mounting hole is provided on the mounting bracket that matches the movable rod and the rotating disk is rotatably set on the mounting bracket, a limiting groove is provided on the outer peripheral wall of the movable rod, the length direction of the limiting groove is consistent with the axial direction of the movable rod and a limiting protrusion that matches the limiting groove is provided on the inner peripheral wall of the rotating disk, a transfer rod is provided at one end of the movable rod, the axial direction of the transfer rod is parallel to the axial direction of the movable rod and a spherical head is provided at the end of the transfer rod away from the movable rod, and a connecting seat that matches the spherical head is provided on the connecting rod.

[0010] Furthermore, the driving assembly also includes a motor and a driving disc arranged at the output end of the motor, and the driving disc is connected to the rotating disc through a transmission belt.

[0011] Furthermore, the connecting seat includes a rod body and the axial direction of the rod body is perpendicular to the axial direction of the connecting rod. The end of the rod body is provided with a first connecting plate and a detachable second connecting plate is provided on the first connecting plate. The first connecting plate and the second connecting plate form a spherical groove for accommodating part of the spherical head.

[0012] Furthermore, a rotatable locking knob is provided on a side of the bracket exposed to the first slot, an elastic buckle is provided on the locking knob, and a clamping plate matched with the elastic buckle is provided on the box body.

[0013] Furthermore, a feed hopper is provided on the box body, and the feed hopper is connected to the feed port.

[0014] Furthermore, the feed hopper is provided with a detachable end cover, which covers the opening of the feed hopper.

[0015] Furthermore, the material receiving box is provided with a handle, and the handle is located on a side of the material receiving box exposed to the second slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects: a driving assembly is adopted to drive the grinding rod to move back and forth in the grinding chamber while rotating back and forth to grind the soil sample in the grinding chamber, and the soil sample is put into the grinding chamber from the feed port, and the driving assembly drives the grinding rod to move to crush the soil sample to break the soil sample, and the first grinding protrusion protruding on the grinding rod crushes the soil sample to grind the soil sample into particles that can pass through the screen, and when a sufficient amount of soil sample is collected in the receiving box, the driving assembly is stopped and the receiving box is pulled out from the second slot to take out the soil sample and carry out the next step of testing, and when it is necessary to clean the residual soil sample in the grinding chamber, the bracket together with the screen is pulled out from the first slot so that the soil sample retained on the screen together with the screen can be taken out, so as to facilitate the cleaning of the screen and the inside of the grinding chamber, which solves the technical problem that the existing grinding equipment is difficult to clean and affects reuse, and produces the technical effect of facilitating the cleaning of residual soil samples inside and facilitating multiple reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a soil sample grinding device according to an embodiment of the present invention;

[0018] Figure 2 This is a partial exploded view of a soil sample grinding device according to an embodiment of the present invention;

[0019] Figure 3 This is a structural schematic diagram of a soil sample grinding device from another perspective according to an embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of a soil sample grinding device according to an embodiment of the present invention;

[0021] Figure 5 This is a structural schematic diagram of a soil sample grinding device according to an embodiment of the present invention after the rotating disk rotates a certain angle;

[0022] Figure 6 This is a partial exploded view of a driving assembly in a soil sample grinding device according to an embodiment of the present invention.

[0023] In the above drawings: 100, box; 101, grinding chamber; 102, feed port; 103, first slot; 104, second slot; 105, hemispherical portion; 106, mounting bracket; 107, clamping plate; 200, grinding rod; 201, first grinding protrusion; 202, connecting rod; 203, hemispherical head; 204, second grinding protrusion; 205, cavity; 206, liquid inlet channel; 207, liquid discharge channel; 208, rotary joint; 209, connecting seat; 210, rod body ; 211. First connecting disk; 212. Second connecting disk; 300. Drive assembly; 301. Movable rod; 302. Rotating disk; 303. Limiting groove; 304. Limiting protrusion; 305. Adapter rod; 306. Spherical head; 307. Motor; 308. Drive disk; 309. Transmission belt; 400. Bracket; 401. Screen; 402. Locking knob; 403. Elastic buckle; 500. Material receiving box; 501. Handle; 600. Feed hopper; 601. End cover. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 6 As shown, an embodiment of the present invention provides a soil sample grinding device for grinding a soil sample to break the soil sample into particles of a desired size, so as to facilitate subsequent testing of the soil sample.

[0026] Please refer to Figure 1 、 Figure 2 and Figure 4The soil sample grinding device includes a box 100, which has a grinding chamber 101 and a feed port 102 connected to the grinding chamber 101. The soil sample can be poured into the grinding chamber 101 from the feed port 102. A movable grinding rod 200 is provided in the grinding chamber 101, and a protruding first grinding protrusion 201 is provided on the outer wall of the grinding rod 200. One end of the grinding rod 200 is provided with a connecting rod 202 extending out of the grinding chamber 101, and the box 100 is also provided with a driving assembly 300 that is transmission-connected to the connecting rod 202. The driving assembly 300 drives the grinding rod 200 to reciprocate along the axial direction of the connecting rod 202 while rotating reciprocating around the axial direction of the connecting rod 202. During the reciprocating movement of the grinding rod 200 along the axial direction of the connecting rod 202, the grinding chamber 101 can be moved. The soil sample in the grinding chamber 101 is crushed to break the agglomerated soil sample, and the first grinding protrusion 201 crushes the soil sample for grinding during the reciprocating rotation of the grinding rod 200; the box body 100 is also provided with a first slot 103 and a second slot 104, the first slot 103 is located at the bottom of the grinding chamber 101 and is connected to the grinding chamber 101, a detachable bracket 400 is provided in the first slot 103 and a screen 401 is provided on the bracket 400, the second slot 104 is located at the bottom of the first slot 103 and is connected to the first slot 103, a detachable material receiving box 500 is provided in the second slot 104, the soil sample in the grinding chamber 101 is crushed into particles that can pass through the mesh on the screen 401 under the action of the grinding rod 200, and then passes through the screen 401 under the action of gravity and falls into the material receiving box 500.

[0027] Specifically, the operation steps of processing a soil sample using the soil sample grinding device provided in this embodiment are as follows: pouring the soil sample to be processed into the grinding chamber 101 from the feed port 102, starting the driving assembly 300 to drive the grinding rod 200 to move back and forth in the grinding chamber 101 while rotating back and forth, and crushing the soil sample during the movement of the grinding rod 200, and crushing the soil sample by the first grinding protrusion 201 protruding from the grinding rod 200 to grind the soil sample, and the soil sample is crushed into particles that can pass through the screen 401 and then moved under the influence of gravity. Under the action of the bracket 400, the soil sample passes through the screen 401 and falls into the receiving box 500. When a sufficient amount of soil sample is collected in the receiving box 500, the driving assembly 300 is stopped and the receiving box 500 is pulled out from the second slot 104. The soil sample can be taken out and the next step of testing can be carried out. When it is necessary to clean the soil sample remaining in the grinding chamber 101, the bracket 400 together with the screen 401 is pulled out from the first slot 103. The soil sample retained on the screen 401 can be taken out together with the screen 401, so that the screen 401 and the inside of the grinding chamber 101 can be conveniently cleaned. The soil sample grinding device provided in this embodiment can conveniently clean the soil sample remaining inside, is convenient for repeated use, and can prevent the soil sample remaining in the grinding chamber 101 from interfering with the accuracy of the next test result.

[0028] like Figure 4 As shown, the grinding rod 200 has a hemispherical head 203 at one end away from the connecting rod 202. The hemispherical head 203 is provided with a protruding second grinding protrusion 204, and the grinding chamber 101 has a hemispherical portion 105 that accommodates the hemispherical head 203. By providing the hemispherical head 203 at the end of the grinding rod 200 and the second grinding protrusion 204 on the hemispherical head 203, when the grinding rod 200 reciprocates within the grinding chamber 101, the hemispherical head 203 and the second grinding protrusion 204 respectively press the soil sample against the inner wall of the hemispherical portion 105, thereby crushing agglomerated soil sample, thereby improving the efficiency of the soil sample grinding device in crushing the soil sample.

[0029] In this embodiment, the grinding rod 200 has a cavity 205, and the connecting rod 202 is provided with a liquid inlet channel 206 and a liquid discharge channel 207 respectively connected to the cavity 205, and the end of the connecting rod 202 extending from the grinding chamber 101 is provided with two rotary joints 208 respectively connected to the liquid inlet channel 206 and the liquid discharge channel 207. The liquid inlet channel 206 is used to inject a heat-conducting medium into the cavity 205, and the grinding rod 200 is heated by the heat of the heat-conducting medium, so that the soil sample is dried during the contact between the grinding rod 200 and the soil sample, thereby preventing the moist soil sample from adhering to the grinding rod 200 or the inner wall of the grinding chamber 101, and the heat-conducting medium in the cavity 205 is discharged from the cavity 205 through the drainage channel so that the heat-conducting medium in the cavity 205 circulates, thereby keeping the temperature of the grinding rod 200 constant, and the rotary joint 208 is provided to connect the liquid inlet channel and the drainage channel with an external heating device, so that the heat-conducting medium can stably circulate in the cavity 205 during the movement of the grinding rod 200, thereby preventing leakage of the heat-conducting medium.

[0030] Please assemble Figure 3 、 Figure 5 and Figure 6The driving assembly 300 includes a movable rod 301 which is sleeved on a rotating disk 302 on the movable rod 301, a mounting bracket 106 is provided on the box body 100, a mounting hole is provided on the mounting bracket 106 which matches the movable rod 301, and the rotating disk 302 can be rotatably set on the mounting bracket 106, a limiting groove 303 is provided on the outer peripheral wall of the movable rod 301, the length direction of the limiting groove 303 is consistent with the axial direction of the movable rod 301 and a limiting protrusion 304 which matches the limiting groove 303 is provided on the inner peripheral wall of the rotating disk 302, a transfer rod 305 is provided at one end of the movable rod 301, the axial direction of the transfer rod 305 is parallel to the axial direction of the movable rod 301 and a spherical head 306 is provided at the end of the transfer rod 305 away from the movable rod 301, and a connecting seat 209 which matches the spherical head 306 is provided on the connecting rod 202. When the rotating disk 302 rotates, the movable rod 301 rotates under the drive of the rotating disk 302 and drives the transfer rod 305 to rotate. The transfer rod 305 pulls the connecting rod 202 to slide on the box body 100. At this time, as the rotating disk 302 continues to rotate, the connecting rod 202 moves back and forth under the drive of the transfer rod 305, causing the grinding rod 200 to reciprocate along the axial direction of the connecting rod 202 in the grinding chamber 101. During the reciprocating movement of the connecting rod 202, the connecting seat 209 moves relative to the The rotation of the spherical head 306 causes the connecting rod 202 to rotate back and forth around the axial direction of the connecting rod 202, and then the grinding rod 200 continues to rotate back and forth in the grinding chamber 101, and during the rotation of the connecting rod 202, the movable rod 301 is pulled to move back and forth along the axial direction of the mounting hole in the mounting hole. During the movement of the movable rod 301, the limiting protrusion 304 slides back and forth in the limiting groove 303, so that the cooperation between the driving disk 308 and the movable rod 301 remains stable, so that the driving assembly 300 operates stably.

[0031] Specifically, the drive assembly 300 further includes a motor 307 and a drive disc 308 disposed at the output end of the motor 307. The drive disc 308 is connected to the rotating disc 302 via a transmission belt 309. The motor 307 drives the drive disc 308 to rotate, and the power output from the motor 307 is transmitted to the rotating disc 302 via the transmission belt 309. This allows the rotating disc 302 to continuously rotate under the drive of the motor 307, thereby driving the grinding rod 200 to continuously move within the grinding chamber 101, ensuring stable operation of the soil sample grinding device.

[0032] like Figure 4As shown, the connecting base 209 includes a rod body 210, the axis of which is perpendicular to the axis of the connecting rod 202. A first connecting disc 211 is provided at the end of the rod body 210, and a detachable second connecting disc 212 is provided on the first connecting disc 211. The first connecting disc 211 and the second connecting disc 212 form a spherical groove that accommodates a portion of the spherical head 306. The connecting base 209 is mounted on the connecting rod 202 through the mating of the rod body 210 and the connecting rod 202. When the first connecting disc 211 and the second connecting disc 212 are assembled, a portion of the spherical head 306 is accommodated in the spherical groove formed by the first connecting disc 211 and the second connecting disc 212. This allows the spherical head 306 to rotate in any direction relative to the connecting base 209 while ensuring a secure fit between the spherical head 306 and the connecting base 209, thereby improving the structural stability of the soil sample grinding device.

[0033] like Figure 2 and Figure 4 As shown, a rotatable locking knob 402 is provided on the side of the bracket 400 exposed to the first slot 103. The locking knob 402 is provided with an elastic snap 403, and the housing 100 is provided with a clamping plate 107 that cooperates with the elastic snap 403. After the bracket 400 is inserted into the first slot 103, the locking knob 402 is rotated so that the elastic snap 403 extends into the clamping plate 107, thereby locking the bracket 400 in position on the housing 100. The elastic force provided by the elastic snap 403 keeps the bracket 400 in the first slot 103, ensuring a stable and reliable fit between the bracket 400 and the housing 100.

[0034] Please refer to Figure 1 、 Figure 2 and Figure 4 The housing 100 is further provided with a feed hopper 600, which is in communication with the feed port 102. By pouring the soil sample into the feed hopper 600, the soil sample can pass through the feed port 102 and enter the grinding chamber 101 under the guidance of the feed hopper 600, thereby facilitating the use of the soil sample grinding device.

[0035] Specifically, the feed hopper 600 is provided with a detachable end cap 601, which covers the opening of the feed hopper 600. The end cap 601 is used to close the opening of the feed hopper 600 to prevent external debris from falling into the grinding chamber 101 during the grinding process and causing soil sample contamination.

[0036] like Figure 1 and Figure 2As shown, the receiving box 500 is provided with a handle 501, which is located on the side of the receiving box 500 exposed to the second slot 104. By operating the handle 501, the receiving box 500 can be easily pulled out from the second slot, so that the ground soil sample can be taken out of the box body 100.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A soil sample grinding device, characterized in that: It includes a box body with a grinding chamber and a feed port connected to the grinding chamber is provided on the box body, a movable grinding rod is provided in the grinding chamber, a protruding first grinding protrusion is provided on the outer wall of the grinding rod, one end of the grinding rod is provided with a connecting rod extending out of the grinding chamber, and the box body is also provided with a driving assembly that is transmission-connected to the connecting rod, the driving assembly drives the grinding rod to move back and forth along the axial direction of the connecting rod while rotating back and forth around the axial direction of the connecting rod; the box body is also provided with a first slot and a second slot, the first slot is located at the bottom of the grinding chamber and is connected to the grinding chamber, a detachable bracket is provided in the first slot and a screen is provided on the bracket, the second slot is located at the bottom of the first slot and is connected to the first slot, and a detachable material receiving box is provided in the second slot.

2. The soil sample grinding device according to claim 1, wherein: The grinding rod has a hemispherical head at one end away from the connecting rod, the hemispherical head is provided with a protruding second grinding protrusion, and the grinding cavity has a hemispherical portion for accommodating the hemispherical head.

3. The soil sample grinding device according to claim 1, wherein: The grinding rod has a cavity, the connecting rod is provided with a liquid inlet channel and a liquid discharge channel respectively connected to the cavity, and one end of the connecting rod extending out of the grinding cavity is provided with two rotary joints respectively connected to the liquid inlet channel and the liquid discharge channel.

4. The soil sample grinding device according to claim 1, wherein: The driving assembly includes a movable rod which is sleeved on a rotating disk on the movable rod, a mounting bracket is provided on the box body, a mounting hole is provided on the mounting bracket which matches the movable rod and the rotating disk is rotatably set on the mounting bracket, a limiting groove is provided on the outer peripheral wall of the movable rod, the length direction of the limiting groove is consistent with the axial direction of the movable rod and a limiting protrusion which matches the limiting groove is provided on the inner peripheral wall of the rotating disk, a transfer rod is provided at one end of the movable rod, the axial direction of the transfer rod is parallel to the axial direction of the movable rod and a spherical head is provided at the end of the transfer rod away from the movable rod, and a connecting seat which matches the spherical head is provided on the connecting rod.

5. The soil sample grinding device according to claim 4, characterized in that: The driving assembly further comprises a motor and a driving disc arranged at an output end of the motor, and the driving disc is connected to the rotating disc via a transmission belt.

6. The soil sample grinding device according to claim 4, characterized in that: The connecting seat includes a rod body and the axial direction of the rod body is perpendicular to the axial direction of the connecting rod. A first connecting plate is provided at the end of the rod body and a detachable second connecting plate is provided on the first connecting plate. The first connecting plate and the second connecting plate form a spherical groove for accommodating part of the spherical head.

7. The soil sample grinding device according to claim 1, wherein: A rotatable locking knob is provided on a side of the bracket exposed to the first slot, an elastic buckle is provided on the locking knob, and a clamping plate matched with the elastic buckle is provided on the box body.

8. The soil sample grinding device according to claim 1, wherein: The box body is also provided with a feed hopper, which is communicated with the feed port.

9. The soil sample grinding device according to claim 8, characterized in that: The feed hopper is provided with a detachable end cover, which covers the opening of the feed hopper.

10. The soil sample grinding device according to claim 1, wherein: The material receiving box is provided with a handle, and the handle is located on a side of the material receiving box exposed to the second slot.

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