Sampling mechanism for tea pesticide residue detection

Abstract

The utility model relates to the technical field of tea pesticide residue detection, in particular to a sampling mechanism for tea pesticide residue detection, which comprises a sampling tube, a plugging component, a connecting bin, a crushing bin, a crushing component and a handle which are sequentially arranged from back to front, a first gear is rotatably mounted in the cavity, second gears are engaged to the two sides of the first gear, a transmission shaft is coaxially connected to the second gears through keys, the transmission shaft penetrates through the mounting plate and penetrates into the crushing bin, and a plurality of cutters are coaxially connected to the transmission shaft through keys; a motor for driving the first gear to rotate is mounted on the front end surface of the mounting plate; the sampling pipe is inserted into a tea product, tea can be sampled, a sample enters the crushing bin through the sampling pipe, a plurality of cutters are arranged in the crushing bin, and the tea in the crushing bin can be crushed under the rotation of the cutters; according to the tea leaf pesticide residue detection device, tea leaf sampling and crushing are integrally designed, so that the tea leaf sampling convenience is improved, and the tea leaf pesticide residue detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea pesticide residue detection, in particular to a sampling mechanism for tea pesticide residue detection. Background Art

[0002] Tea pesticide residue detection is an important part of ensuring tea quality and safety. Its main purpose is to detect whether tea contains pesticide residues and calculate the content of pesticide residues. Tea pesticide residue detection usually includes sampling, sample processing and instrument analysis. In the sampling stage, testers need to randomly select samples from tea leaves of different batches and regions, and in the sample processing stage, crushing, extraction, purification and concentration are required.

[0003] The utility model patent with authorization announcement number CN215374546U discloses a small tea sampling device, which includes a sampling tube and a sampling clamp cover; the sampling tube is a sampling tube with two ends connected, the front end of the sampling tube is provided with an oblique mouth, and the rear end of the sampling tube is covered with a collecting bag; a mounting seat is respectively provided on both sides of the sampling tube at the top of the oblique mouth; a hinged seat is provided at the rear end of the sampling clamp cover, a hinged shaft runs through the hinged seat, both ends of the hinged shaft are installed on the mounting seat, a reset spring is installed on the hinged shaft, and the sampling clamp cover is closed on the oblique mouth; a handle is provided on the sampling tube, and a handle is installed on the lower part of the handle through the handle mounting shaft and the handle mounting seat, and the front end of the handle is connected to the hinged seat through a pull rod. The operator holds the handle and then squeezes the handle, the pull rod will be pulled backward, thereby pulling the sampling clamp cover to open the oblique opening, inserting the front end of the sampling tube into the tea leaves, and the tea leaves will enter from the exposed oblique opening. After releasing the handle, due to the action of the reset spring, the sampling clamp cover is closed on the oblique opening again, closing the oblique opening, and the tea leaves will be confined in the sampling tube. Then the sampling tube is erected, and the tea leaves will fall into the collection bag at the rear end of the sampling tube. The small tea sampling device uses the sampling clamp cover to limit the unpackaged tea products to the sampling tube, and the sampling tube is erected, and the tea leaves will fall into the collection bag at the rear end of the sampling tube. The hand will not touch the tea leaves, and sampling without direct contact is realized. A label roll is placed on the sampling device, which is convenient for taking the label and sticking it on the collection bag to record the production information of the sampled tea leaves, and for tracing the tested tea leaves.

[0004] Although the small tea sampling device realizes sampling of tea leaves without direct contact and improves the convenience of operation, the device still has some shortcomings in actual use. Specifically: in the process of tea pesticide residue detection, the tea leaves need to be crushed to meet the later detection needs, and the sampling tube provided in the device can only be used for sampling. When the tea samples are crushed, the tea leaves need to be taken out and transferred to the crushing equipment for crushing. This design is not only inconvenient in operation, affecting the efficiency of tea pesticide residue detection, but also prone to contamination during sample transfer. In view of this, we propose a sampling mechanism for tea pesticide residue detection. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to provide a sampling mechanism for tea pesticide residue detection, which improves the convenience of tea sampling by integrating tea sampling and crushing, thereby improving the efficiency of tea pesticide residue detection.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The sampling organization for tea pesticide residue detection, including the sampling department;

[0008] The sampling part includes a sampling tube, a plugging assembly, a connecting chamber, a crushing chamber, a crushing assembly and a handle which are arranged in sequence from the back to the front;

[0009] An oblique opening is provided at the rear end of the sampling tube;

[0010] The plugging assembly includes a shell with a hollow structure and fixedly connected to the sampling tube and the connecting chamber, and a plugging plate that can be raised and lowered and used to plug the sampling tube is slidably installed inside the shell; a threaded rod is threadedly connected to the top of the shell, and the bottom end of the threaded rod is rotatably connected to the top of the plugging plate;

[0011] The connecting chamber is open at the front end, and the front end of the connecting chamber is fixed to the crushing chamber and communicated with the crushing chamber;

[0012] The crushing assembly includes a mounting plate detachably connected to the crushing bin, a cavity is provided inside the mounting plate, a first gear is rotatably mounted in the cavity, second gears are meshed on both sides of the first gear, a transmission shaft is coaxially keyed on the second gear, the transmission shaft passes through the mounting plate and penetrates into the crushing bin, a plurality of cutters are coaxially keyed on the transmission shaft; a motor for driving the first gear to rotate is mounted on the front end surface of the mounting plate;

[0013] A battery compartment is provided at the front end of the handle, and a switch is installed at the rear end of the outer wall of the handle; batteries are installed in the battery compartment; a cover body detachably connected to the mounting plate is fixed to the rear end of the handle, and the cover body is located outside the motor.

[0014] In addition, the sampling mechanism for tea pesticide residue detection proposed in the application may also have the following additional technical features:

[0015] Specifically, a sealing cover is installed at the front end of the battery compartment, and the sealing cover is threadedly connected to the battery compartment.

[0016] Specifically, a threaded ring is fixed to the rear end surface of the mounting plate, a threaded groove is provided on the front end surface of the crushing bin, and the threaded ring is threadedly connected to the threaded groove.

[0017] Specifically, the outer cover of the handle is provided with an anti-slip cover, and the anti-slip cover is made of rubber material.

[0018] Specifically, the top end of the threaded rod is coaxially keyed to an adjusting head, and an anti-slip groove is provided on the outer wall of the adjusting head.

[0019] Specifically, a connecting ring is installed at the rear end edge of the cover body, and a plurality of connecting bolts threadedly connected to the mounting plate are passed through the connecting ring.

[0020] Specifically, the outer wall of the cover body is provided with a plurality of heat dissipation grooves for heat dissipation, and the plurality of heat dissipation grooves are distributed in a ring shape with equal intervals.

[0021] Specifically, the size of the blocking plate is matched with the inner cavity size of the shell, and the width of the blocking plate is greater than the diameter of the sampling tube.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] Through the sampling part, the sampling tube is inserted into the tea product to sample the tea, and the sample enters the crushing chamber through the sampling tube. A plurality of cutters are arranged in the crushing chamber, and the tea leaves in the crushing chamber can be crushed by the rotation of the cutters. The design integrates the sampling and crushing of tea leaves, improves the convenience of tea sampling, and further improves the efficiency of tea pesticide residue detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0026] Figure 3 This is one of the partial structural cross-sectional views in the utility model;

[0027] Figure 4 This is the second partial structural cross-sectional view of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the cutter in the utility model.

[0029] In the figure:

[0030] 1. Sampling part; 10. Sampling tube; 11. Sealing assembly; 111. Shell; 112. Blocking plate; 113. Threaded rod; 114. Adjusting head; 12. Connecting chamber; 13. Crushing chamber; 14. Crushing assembly; 141. Mounting plate; 1411. Cavity; 142. Threaded ring; 143. Motor; 144. First gear; 145. Second gear; 146. Transmission shaft; 147. Cutter; 15. Handle; 151. Battery compartment; 152. Switch; 153. Anti-slip cover; 154. Sealing cover; 16. Battery; 17. Cover; 171. Connecting ring; 172. Heat sink. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] This embodiment provides a technical solution:

[0033] See also Figure 1-Figure 5 The sampling mechanism for detecting pesticide residues in tea leaves comprises a sampling part 1. The sampling part 1 comprises a sampling tube 10, a plugging assembly 11, a connecting chamber 12, a crushing chamber 13, a crushing assembly 14 and a handle 15 which are arranged in sequence from the back to the front; the sampling tube 10 has an oblique opening at the rear end; the plugging assembly 11 comprises a shell 111 which is a hollow structure and is fixedly connected to the sampling tube 10 and the connecting chamber 12, and a plugging plate 112 which can be raised and lowered and is used to block the sampling tube 10 is slidably installed inside the shell 111; a threaded rod 113 is threadedly connected to the top of the shell 111, and the bottom end of the threaded rod 113 is rotatably connected to the top of the plugging plate 112; the connecting chamber 12 is open at the front end, and the front end of the connecting chamber 12 is fixed to the crushing chamber 13 and communicates with the crushing chamber 13; the crushing assembly 14 comprises a mounting plate 141 which is detachably connected to the crushing chamber 13, and is installed A cavity 1411 is provided inside the plate 141, and a first gear 144 is rotatably installed in the cavity 1411. Second gears 145 are meshed on both sides of the first gear 144, and a transmission shaft 146 is coaxially keyed on the second gear 145. The transmission shaft 146 passes through the mounting plate 141 and penetrates into the crushing bin 13, and a plurality of cutters 147 are coaxially keyed on the transmission shaft 146; a motor 143 for driving the first gear 144 to rotate is installed on the front end surface of the mounting plate 141; a battery compartment 151 is provided at the front end of the handle 15, and a switch 152 is installed at the rear end of the outer wall of the handle 15; a battery 16 is installed in the battery compartment 151; a cover body 17 detachably connected to the mounting plate 141 is fixed to the rear end of the handle 15, and the cover body 17 is located outside the motor 143.

[0034] In this embodiment, a sealing cover 154 is installed at the front end of the battery compartment 151, and the sealing cover 154 is threadedly connected to the battery compartment 151. The setting of the sealing cover 154 seals and protects the battery compartment 151, and the threaded connection method facilitates the disassembly and assembly of the sealing cover 154 and the replacement of the battery 16.

[0035] In this embodiment, a threaded ring 142 is fixed to the rear end face of the mounting plate 141, a threaded groove 131 is provided on the front end face of the crushing bin 13, and the threaded ring 142 is threadedly connected to the threaded groove 131. The threaded connection facilitates quick disassembly and assembly between the crushing bin 13 and the crushing assembly 14, thereby facilitating the removal of tea samples after crushing.

[0036] In this embodiment, the outer cover of the handle 15 is provided with an anti-skid cover 153, and the anti-skid cover 153 is made of rubber material. The rubber anti-skid cover 153 can increase the friction between the hand and the handle 15, and improve the stability and comfort of holding.

[0037] In this embodiment, the top of the threaded rod 113 is coaxially keyed with an adjusting head 114, and an anti-slip groove is provided on the outer wall of the adjusting head 114. The setting of the adjusting head 114 facilitates the rotation of the threaded rod 113, thereby improving the convenience of operation.

[0038] In this embodiment, a connecting ring 171 is installed at the rear edge of the cover body 17, and a plurality of connecting bolts threadedly connected to the mounting plate 141 are passed through the connecting ring 171. This design facilitates the stable installation of the cover body 17 and the mounting plate 141, and also facilitates the disassembly of the cover body 17.

[0039] In this embodiment, the outer wall of the cover body 17 is provided with a plurality of heat dissipation slots 172 for heat dissipation, and the plurality of heat dissipation slots 172 are distributed in a ring shape with equal spacing. The provision of the heat dissipation slots 172 is conducive to heat dissipation of the motor 143 .

[0040] In this embodiment, the size of the plugging plate 112 matches the inner cavity size of the housing 111, and the width of the plugging plate 112 is greater than the diameter of the sampling tube 10. This design facilitates the plugging plate 112 to block the sampling tube 10.

[0041] It is understandable that the motor 143 in this embodiment is electrically connected to the battery 16 via a wire, and the switch 152 is connected in series to the wire. This design facilitates controlling the start and stop of the motor 143 via the switch 152 .

[0042] It should be added that when the tea leaves are crushed in the crushing chamber 13, the threaded rod 113 is rotated to make the blocking plate 112 move downward, and the blocking plate 112 blocks the sampling tube 10. This design can prevent tea leaves from splashing into the sampling tube 10 during crushing, so that the sampling tube 10 does not need to be cleaned during subsequent sampling.

[0043] It is worth noting that the motor 143 involved in this embodiment is an existing conventional technology and will not be described in detail here.

[0044] Before use, the user first inserts the sampling tube 10 into the tea leaves, and the tea leaves enter the sampling tube 10. At this time, the user turns the opening of the sampling tube 10 upward, and the tea leaves in the sampling tube 10 enter the crushing chamber 13 through the connecting chamber 12. Then, the user rotates the adjusting head 114, and the threaded rod 113 rotates, driving the blocking plate 112 to move downward along the inner cavity of the shell 111. When the blocking plate 112 is pressed against the inner bottom of the shell 111, the sampling tube 10 and the connecting chamber 12 are blocked.

[0045] When in use, the user first presses the switch 152, the power of the motor 143 is turned on, the motor 143 starts to work, the output shaft of the motor 143 rotates to drive the first gear 144 to rotate, and because the first gear 144 is meshed with the second gear 145, the second gear 145 rotates and drives the transmission shaft 146 and the plurality of cutters 147 to rotate, and with the rotation of the cutters 147, the tea leaves in the crushing bin 13 can be crushed;

[0046] After use, the user rotates the crushing chamber 13 , the threaded ring 142 is separated from the crushing chamber 13 , and the crushing chamber 13 is removed. Finally, the user can take out the crushed tea sample in the crushing chamber 13 .

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. The sampling mechanism for detecting pesticide residues in tea leaves is characterized by: It comprises a sampling part (1); The sampling part (1) comprises a sampling tube (10), a blocking component (11), a connecting chamber (12), a crushing chamber (13), a crushing component (14) and a handle (15) which are arranged in sequence from the back to the front. The rear end of the sampling tube (10) is provided with an oblique opening; The plugging assembly (11) comprises a shell (111) having a hollow structure and fixedly connected to the sampling tube (10) and the connecting chamber (12); a plugging plate (112) which can be raised and lowered and is used to plug the sampling tube (10) is slidably mounted inside the shell (111); a threaded rod (113) is threadedly connected to the top of the shell (111), and the bottom end of the threaded rod (113) is rotatably connected to the top of the plugging plate (112); The connecting chamber (12) is in an open front face shape, and the front end of the connecting chamber (12) is fixed to the crushing chamber (13) and communicates with the crushing chamber (13); The crushing assembly (14) comprises a mounting plate (141) detachably connected to the crushing chamber (13); a cavity (1411) is provided inside the mounting plate (141); a first gear (144) is rotatably mounted in the cavity (1411); second gears (145) are meshed on both sides of the first gear (144); a transmission shaft (146) is coaxially keyed on the second gear (145); the transmission shaft (146) passes through the mounting plate (141) and penetrates into the crushing chamber (13); a plurality of cutters (147) are coaxially keyed on the transmission shaft (146); a motor (143) for driving the first gear (144) to rotate is mounted on the front end surface of the mounting plate (141); A battery compartment (151) is provided at the front end of the handle (15), and a switch (152) is installed at the rear end of the outer wall of the handle (15); a battery (16) is installed in the battery compartment (151); a cover body (17) detachably connected to the mounting plate (141) is fixed at the rear end of the handle (15), and the cover body (17) is located outside the motor (143).

2. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: A sealing cover (154) is installed at the front end of the battery compartment (151), and the sealing cover (154) is threadedly connected to the battery compartment (151).

3. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: A threaded ring (142) is fixed to the rear end face of the mounting plate (141), a threaded groove (131) is provided on the front end face of the crushing chamber (13), and the threaded ring (142) is threadedly connected to the threaded groove (131).

4. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: The outer cover of the handle (15) is provided with an anti-slip cover (153), and the anti-slip cover (153) is a product made of rubber material.

5. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: The top end of the threaded rod (113) is coaxially keyed to an adjusting head (114), and an anti-slip groove is provided on the outer wall of the adjusting head (114).

6. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: A connecting ring (171) is installed at the rear end edge of the cover body (17), and a plurality of connecting bolts threadedly connected to the mounting plate (141) are passed through the connecting ring (171).

7. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: The outer wall of the cover body (17) is provided with a plurality of heat dissipation grooves (172) for dissipating heat, and the plurality of heat dissipation grooves (172) are distributed in a ring shape at equal intervals.

8. The sampling mechanism for detecting pesticide residues in tea leaves according to claim 1, characterized in that: The size of the blocking plate (112) is matched to the size of the inner cavity of the shell (111), and the width of the blocking plate (112) is greater than the diameter of the sampling tube (10).

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