A pesticide residue rapid detection sample preparation device

Abstract

The utility model discloses a kind of pesticide residue rapid detection sample preparation device, it is related to pesticide residue detection technical field, the utility model includes mounting seat, the inner wall of mounting seat is equipped with mounting groove, the inner wall of mounting groove is equipped with quick release mechanism, the utility model can be counterclockwise rotated knob by being equipped with clamping block, knob will drive worm rotation, worm will drive worm gear rotation, worm gear will drive transmission disc rotation, since the protruding portion of several clamping blocks is all located in chute, when transmission disc rotates, it will drive several clamping blocks to be displaced by each other, several clamping blocks are all separated from clamping groove to no longer limit the displacement of crushing barrel, subsequently, crushing barrel can be directly taken out from mounting groove, reach the effect that the crushing barrel can be quickly disassembled and replaced after sample crushing treatment, ensure that crushing barrel is not easily separated during crushing process, while facilitating user direct transfer for cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of pesticide residue detection technology, and in particular relates to a sample preparation device for rapid detection of pesticide residues. Background Technology

[0002] According to the published patent CN209513376U, the pesticide residue detection sample pretreatment device includes a base, a motor inside the base, a drive shaft of the motor extending out of the base and fixed with a chuck, and a blade holder on the top of the base. The pretreatment effect of the sample by the crushing blade is good and the processing efficiency is high, which provides convenience for the sample pretreatment of pesticide residue detection. However, it still has the following shortcomings.

[0003] Although the aforementioned equipment allows for the disassembly and replacement of the blade holder after sample crushing, the simple locking structure between the blade holder and the machine base makes it easy for the blade holder to accidentally detach from the machine base during crushing, compromising reliability. Therefore, we propose a sample preparation device for rapid detection of pesticide residues. Utility Model Content

[0004] The purpose of this invention is to provide a sample preparation device for rapid detection of pesticide residues. Through a quick-release mechanism and a shock-absorbing mechanism, it solves the problem that although the blade holder can be disassembled and replaced after the sample is crushed, the locking structure between the blade holder and the machine base is too simple, which may cause the blade holder to easily detach from the machine base during the crushing process, making it difficult to guarantee reliability.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a sample preparation device for rapid detection of pesticide residues, including a mounting base, an mounting groove is provided on the inner wall of the mounting base, and a quick-release mechanism is provided on the inner wall of the mounting groove.

[0007] The quick-release mechanism includes a pulverizing barrel, the outer wall of which is slidably connected to the inner wall of the mounting groove. The inner wall of the pulverizing barrel has several slots. A valve is fixedly connected to the inner wall of the pulverizing barrel. A sealing sleeve is fixedly connected inside the pulverizing barrel. A pulverizing blade is rotatably connected to the inner wall of the sealing sleeve. A mating sleeve is fixedly connected to the bottom outer wall of the pulverizing blade. A mating groove is formed on the inner wall of the mating sleeve. The inner wall of the mounting base has several guide grooves. Each guide groove has a slidably connected locking block on its inner wall. A transmission disc is rotatably connected to the inner wall of the mounting base. The inner wall of the disc has several inclined grooves, and the inner walls of these grooves are slidably connected to the outer wall of the locking block. A worm gear is fixedly connected to the bottom outer wall of the transmission disc. A worm is rotatably connected to the inner wall of the mounting base. The outer wall of the worm meshes with the outer wall of the worm gear. The worm passes through the mounting base to the outer wall. A knob is fixedly connected to the outer wall of the worm. A motor is fixedly connected to the inner wall of the mounting base. A transmission rod is fixedly connected to the bottom output end of the motor via a coupling. A docking block is fixedly connected to the outer wall of the transmission rod at the end away from the motor. A top cover is hinged to the outer wall of the crushing barrel.

[0008] Furthermore, the worm gear extends through the mounting base to the outer wall, and the outer wall of the mating block is slidably connected to the inner wall of the mating groove.

[0009] Furthermore, the bottom outer wall of the mounting base is provided with a shock-absorbing mechanism, which includes a plurality of spring telescopic rods, the top outer walls of which are fixedly connected to the bottom outer wall of the mounting base.

[0010] Furthermore, a base is fixedly connected to the bottom outer wall of several of the spring telescopic rods, and a number of displacement grooves are formed on the inner wall of the base.

[0011] Furthermore, a plurality of displacement shaft seats are slidably connected to the inner walls of the plurality of displacement grooves, and a connecting rod is rotatably connected to the inner walls of the plurality of displacement shaft seats.

[0012] Furthermore, a bearing seat is rotatably connected to the outer wall of the end of the connecting rod away from the displacement bearing seat, the top outer walls of several bearing seats are fixedly connected to the bottom outer wall of the mounting base, and a fixing rod is fixedly connected to the inner wall of the displacement groove.

[0013] Furthermore, the outer wall of the fixing rod is slidably connected to the inner wall of several displacement shaft seats, and the fixing rod passes through several displacement shaft seats to the outer wall.

[0014] Furthermore, the inner wall of the displacement groove is fixedly connected with several springs, the outer walls of the several springs are fixedly connected to the outer wall of the displacement shaft seat, and the outer walls of the several displacement shaft seats are fixedly connected with springs.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates locking blocks. Rotating the knob counter-clockwise causes the worm gear to rotate, which in turn drives the worm wheel, which in turn drives the transmission disc. Since the protruding parts of several locking blocks are located within inclined grooves, the rotation of the transmission disc causes these blocks to move closer together, disengaging from their slots and freeing the crushing container from its movement. This allows the crushing container to be easily removed from the mounting slot, enabling rapid disassembly and replacement of the crushing container after sample crushing. This design ensures the crushing container does not easily detach during crushing while facilitating easy cleaning by the user, effectively improving work efficiency.

[0017] 2. This utility model incorporates bearing seats. When the mounting base vibrates, it generates small vertical displacements. Several spring telescopic rods buffer the vibrations. The mounting base drives several bearing seats to move vertically, which in turn drives the connecting rods to rotate. The connecting rods then drive the displacement bearing seats to move, and the displacement bearing seats stretch and compress the springs. Simultaneously, the displacement bearing seats stretch and compress the second spring. The multiple springs and the second spring indirectly further buffer the vibrations generated by the mounting base, achieving a sufficient buffering effect on the vibrations generated by the equipment. This prevents the entire equipment from shifting or even tipping over due to excessive vibration intensity, thus ensuring the reliability of the equipment.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the mounting base structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the crushing barrel structure of this utility model;

[0023] Figure 4 This is a sectional view of the mounting base structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the transmission disc structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the worm gear structure of this utility model;

[0026] Figure 7 This is a cross-sectional view of the base structure of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Mounting base; 101. Mounting groove; 2. Quick release mechanism; 201. Crushing bucket; 202. Slot; 203. Valve; 204. Sealing sleeve; 205. Crushing blade; 206. Connecting sleeve; 207. Connecting groove; 208. Guide groove; 209. Locking block; 210. Transmission disc; 211. Inclined groove; 212. Worm gear; 213. Worm; 214. Knob; 215. Motor; 216. Transmission rod; 217. Connecting block; 218. Top cover; 3. Shock absorption mechanism; 301. Spring telescopic rod; 302. Base; 303. Displacement groove; 304. Displacement shaft seat; 305. Connecting rod; 306. Shaft seat; 307. Fixing rod; 308. Spring; 309. Spring II. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7 As shown, this utility model is a sample preparation device for rapid detection of pesticide residues, including a mounting base 1, an mounting groove 101 is provided on the inner wall of the mounting base 1, and a quick-release mechanism 2 is provided on the inner wall of the mounting groove 101.

[0031] The quick-release mechanism 2 includes a crushing barrel 201. The outer wall of the crushing barrel 201 is slidably connected to the inner wall of the mounting groove 101. The mounting groove 101 mainly serves to limit the sliding movement of the crushing barrel 201, allowing it to slide within a fixed angle. Several slots 202 are provided on the inner wall of the crushing barrel 201. A valve 203 is fixedly connected to the inner wall of the crushing barrel 201. A sealing sleeve 204 is fixedly connected inside the crushing barrel 201. A crushing blade 205 is rotatably connected to the inner wall of the sealing sleeve 204. The sealing sleeve 204 mainly... The pulverizing blade 205 serves as a rotation limiter, allowing it to rotate only within the fixed position inside the sealing sleeve 204. A mating sleeve 206 is fixedly connected to the bottom outer wall of the pulverizing blade 205. A mating groove 207 is formed on the inner wall of the mating sleeve 206. Several guide grooves 208 are formed on the inner wall of the mounting base 1. The pulverizing blade 205 primarily serves to fix and limit the mating sleeve 206. When the mating sleeve 206 rotates, it drives the pulverizing blade 205 to rotate as well. Each guide groove 208 has a slidingly connected locking block 209. A transmission disc 210 is rotatably connected to the inner wall of the mounting base 1. The inner wall of the transmission disc 210 has several inclined grooves 211. The mounting base 1 mainly serves to limit the rotation of the transmission disc 210, allowing it to rotate only in a fixed position within the mounting base 1. The inner walls of the inclined grooves 211 are slidably connected to the outer wall of the locking block 209. A worm gear 212 is fixedly connected to the bottom outer wall of the transmission disc 210. A worm 213 is rotatably connected to the inner wall of the mounting base 1. The outer wall of the worm 213 meshes with the outer wall of the worm gear 212. The mounting base 1 mainly serves to limit the rotation of the worm 213, allowing it to rotate only in a fixed position within the mounting base 1. The worm gear 213 rotates in a fixed position inside the mounting base 1. It passes through the mounting base 1 to the outer wall. A knob 214 is fixedly connected to the outer wall of the worm gear 213. A motor 215 is fixedly connected to the inner wall of the mounting base 1. A transmission rod 216 is fixedly connected to the bottom output end of the motor 215 through a coupling. The shape of the knob 214 is convenient for the user to hold and rotate. When the knob 214 rotates, it will drive the worm gear 213 to rotate at the same time. A docking block 217 is fixedly connected to the outer wall of the end of the transmission rod 216 away from the motor 215. A top cover 218 is hinged to the outer wall of the crushing barrel 201.

[0032] The worm gear 213 passes through the mounting base 1 to the outer wall. The outer wall of the mating block 217 is slidably connected to the inner wall of the mating groove 207. The mating groove 207 mainly serves to accommodate the mating block 217. The mating block 217 can slide within the mating groove 207. A shock-absorbing mechanism 3 is provided on the bottom outer wall of the mounting base 1. The shock-absorbing mechanism 3 includes several spring telescopic rods 301. The top outer wall of the several spring telescopic rods 301 is fixedly connected to the bottom outer wall of the mounting base 1. The mounting base 1 mainly serves to fix and limit the several spring telescopic rods 301. The several spring telescopic rods 301 can only be fixed in the position on the mounting base 1. A base 302 is fixedly connected to the bottom outer wall of the several spring telescopic rods 301. Several displacement grooves 303 are opened on the inner wall of the base 302.

[0033] Several displacement grooves 303 have several displacement shaft seats 304 slidably connected to their inner walls. Each displacement shaft seat 304 has a connecting rod 305 rotatably connected to its inner wall. The displacement grooves 303 primarily function as sliding limiters for the displacement shaft seats 304, allowing the displacement shaft seats 304 to slide within the displacement grooves 303 at a fixed angle. A shaft seat 306 is rotatably connected to the outer wall of the connecting rod 305 away from the displacement shaft seats 304. The top outer wall of the shaft seats 306 is fixedly connected to the bottom outer wall of the mounting base 1. A fixing rod 307 is fixedly connected to the inner wall of the displacement grooves 303. The outer wall of the fixing rod 307 is connected to the several displacement shaft seats. The inner wall of the seat 304 is slidably connected. The mounting seat 1 mainly serves to fix and limit the several shaft seats 306. The several shaft seats 306 can only be fixed in the position on the mounting seat 1. The fixing rod 307 passes through the several displacement shaft seats 304 to the outer wall. The inner wall of the displacement groove 303 is fixedly connected to several springs 308. The outer walls of the several springs 308 are all fixedly connected to the outer wall of the displacement shaft seats 304. The outer walls of the several displacement shaft seats 304 are fixedly connected to springs 309. The several displacement shaft seats 304 mainly serve to fix and limit the springs 309. The springs 309 can only be fixed in the position on the several displacement shaft seats 304.

[0034] One specific application of this embodiment is:

[0035] When staff need to use the equipment, they can directly open the top cover 218 and add the sample and extraction solution into the crushing tank 201. Then, they can start the motor 215, which will drive the transmission rod 216 to rotate. The transmission rod 216 will drive the docking block 217 to rotate, which will drive the docking sleeve 206 to rotate. The docking sleeve 206 will drive the crushing blade 205 to rotate, which will crush the sample and mix it with the extraction solution. After the sample and extraction solution are mixed, the valve 203 can be opened to remove the sample solution from the crushing tank 201. During the testing of the liquid, the mounting base 1 vibrates due to excessive crushing force. When the mounting base 1 vibrates, it will cause small up-and-down displacement. Several spring telescopic rods 301 will buffer the vibration. The mounting base 1 will drive several shaft seats 306 to move up and down. The shaft seats 306 will drive the connecting rod 305 to rotate. The connecting rod 305 will drive the displacement shaft seat 304 to move. The displacement shaft seats 304 will stretch and compress the spring 308, and the displacement shaft seats 304 will simultaneously stretch the second spring 309. In addition to compression, several springs 308 and 309 will indirectly further buffer the vibration generated by the mounting base 1. After use, if it is necessary to clean the pulverizing barrel 201, the knob 214 can be turned counterclockwise. The knob 214 will drive the worm 213 to rotate, the worm 213 will drive the worm wheel 212 to rotate, and the worm wheel 212 will drive the transmission disc 210 to rotate. Since the protrusions of several locking blocks 209 are all located in the inclined groove 211, when the transmission disc 210 rotates, it will drive several locking blocks 209 to move closer to each other. All 9 will disengage from the slot 202 to no longer restrict the movement of the crushing bucket 201. Then, the crushing bucket 201 can be directly removed from the mounting slot 101. During this process, the docking block 217 will disengage from the docking slot 207. After separating the crushing bucket 201, it can be easily transferred and cleaned. After cleaning, the crushing bucket 201 can be installed in the mounting slot 101 by reversing the above steps. During this process, when the knob 214 is turned clockwise, it will indirectly drive several locking blocks 209 to move away from each other and insert into the slot 202 to restrict the movement of the crushing bucket 201.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sample preparation device for rapid detection of pesticide residues, comprising a mounting base (1), characterized in that: The inner wall of the mounting base (1) is provided with a mounting groove (101), and the inner wall of the mounting groove (101) is provided with a quick-release mechanism (2); The quick-release mechanism (2) includes a crushing barrel (201), the outer wall of which is slidably connected to the inner wall of the mounting groove (101), the inner wall of which is provided with several slots (202), a valve (203) is fixedly connected to the inner wall of which is also fixedly connected, a sealing sleeve (204) is fixedly connected to the inside of which is also fixedly connected, a crushing blade (205) is rotatably connected to the inner wall of which is also rotatably connected, a docking sleeve (206) is fixedly connected to the bottom outer wall of which is also fixedly connected, a docking groove (207) is provided on the inner wall of which is also provided, several guide grooves (208) are provided on the inner wall of which are also slidably connected to the inner walls of which are also slidably connected, and a transmission disc (210) is rotatably connected to the inner wall of which is also rotatably connected. The inner wall of the transmission disc (210) has several inclined grooves (211), and the inner walls of the several inclined grooves (211) are slidably connected to the outer wall of the locking block (209). A worm wheel (212) is fixedly connected to the bottom outer wall of the transmission disc (210). A worm (213) is rotatably connected to the inner wall of the mounting base (1). The outer wall of the worm (213) meshes with the outer wall of the worm wheel (212). The worm (213) passes through the mounting base (1) to... The outer wall of the worm gear (213) is fixedly connected to a knob (214), the inner wall of the mounting base (1) is fixedly connected to a motor (215), the bottom output end of the motor (215) is fixedly connected to a transmission rod (216) through a coupling, the outer wall of the end of the transmission rod (216) away from the motor (215) is fixedly connected to a docking block (217), and the outer wall of the crushing barrel (201) is hinged to a top cover (218).

2. The sample preparation device for rapid detection of pesticide residues according to claim 1, characterized in that, The worm (213) passes through the mounting base (1) to the outer wall, and the outer wall of the docking block (217) is slidably connected to the inner wall of the docking groove (207).

3. The sample preparation device for rapid detection of pesticide residues according to claim 2, characterized in that, The bottom outer wall of the mounting base (1) is provided with a shock-absorbing mechanism (3), which includes a plurality of spring telescopic rods (301), the top outer wall of the plurality of spring telescopic rods (301) being fixedly connected to the bottom outer wall of the mounting base (1).

4. The sample preparation device for rapid detection of pesticide residues according to claim 3, characterized in that, A base (302) is fixedly connected to the bottom outer wall of several spring telescopic rods (301), and a number of displacement grooves (303) are opened on the inner wall of the base (302).

5. The sample preparation device for rapid detection of pesticide residues according to claim 4, characterized in that, The inner walls of several displacement grooves (303) are slidably connected to several displacement shaft seats (304), and the inner walls of several displacement shaft seats (304) are rotatably connected to a connecting rod (305).

6. The sample preparation device for rapid detection of pesticide residues according to claim 5, characterized in that, The outer wall of the connecting rod (305) away from the displacement shaft seat (304) is rotatably connected to the bearing seat (306), and the top outer wall of several bearing seats (306) is fixedly connected to the bottom outer wall of the mounting base (1). The inner wall of the displacement groove (303) is fixedly connected to the fixing rod (307).

7. The sample preparation device for rapid detection of pesticide residues according to claim 6, characterized in that, The outer wall of the fixed rod (307) is slidably connected to the inner wall of a plurality of displacement shaft seats (304), and the fixed rod (307) passes through the plurality of displacement shaft seats (304) to the outer wall.

8. The sample preparation device for rapid detection of pesticide residues according to claim 7, characterized in that, The inner wall of the displacement groove (303) is fixedly connected with a plurality of springs (308), the outer walls of the plurality of springs (308) are fixedly connected with the outer wall of the displacement shaft seat (304), and the outer walls of the plurality of displacement shaft seats (304) are fixedly connected with springs (309).

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