Device for detecting quality of pesticide

Abstract

The utility model discloses a device for pesticide quality detection, which comprises a control handle, a test tube plug is mounted on the control handle, a sampling test tube is mounted on the test tube plug, a locking structure is mounted on the control handle, and the locking structure is in contact with the test tube plug. Through the arrangement of structures such as a rubber friction cushion, a movable rod, a driving ring and a fixed ring, after a sampling test tube is placed on a test tube plug, the driving ring drives a transmission rod to rotate, and the transmission rod drives the rubber friction cushion on the movable rod to be quickly clamped on the fixed ring on the test tube plug; by means of the structure, the sampling test tube can be conveniently fixed to the test tube plug for use, meanwhile, by means of the elastic performance of the rubber friction cushion, the situation that when the sampling test tube is fixed, the sampling test tube is squeezed and damaged by mechanical pressure on the rubber friction cushion can be effectively avoided, and the structure is easy to operate, convenient, rapid and high in practicability. Therefore, the operation burden of testers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a device for detecting the quality of pesticides. Background Art

[0002] In the prior art, the patent with announcement number CN210181004U discloses a device for pesticide quality detection, including a control handle, a driving motor is inserted in the center of the bottom of the control handle, and a rotating shaft is connected to the bottom of the driving motor, the lower end of the rotating shaft is connected to the centrifugal disk through a tenon, and four groups of tube sleeves are inserted around the bottom of the centrifugal disk, a test tube plug is fitted in the center of the tube sleeve, and a supporting ring is welded around the outer periphery of the tube sleeve, a clamping ring is fitted on the outer sleeve of the tube sleeve, and a threaded column is inserted on the clamping ring, a connecting block is threadedly installed on the threaded column, and a buckle block is hingedly connected on the connecting block, and a sampling test tube is inserted in the center of the tube sleeve. The device powers the driving motor through a battery inserted in the control handle, so that the control handle can independently control the shaking of three groups of sampling test tubes with one hand, thereby improving the portability of the device.

[0003] In actual use of the above-mentioned device, the driving motor drives the centrifugal disk to rotate too fast. However, when fixing the sampling tube on the existing device, only the supporting ring and the clamping ring are used for fixing. The fixing effect is too poor, which will cause the sampling tube to detach from the centrifugal disk during rotation, thereby destroying the sample in the sampling tube.

[0004] Therefore, a device for pesticide quality detection is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a device for pesticide quality detection to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a device for pesticide quality detection, comprising a control handle, a test tube plug is installed on the control handle, a sampling test tube is installed on the test tube plug, a locking structure is installed on the control handle, the locking structure is in contact with the test tube plug, a positioning structure is engaged on the locking structure, and the positioning structure is rotatably installed on the control handle;

[0007] The locking structure includes a retaining ring, which is installed on the control handle. A plurality of movable rods are slidably installed on the retaining ring, and rubber friction pads are installed on the plurality of movable rods. A fixing ring is installed on the test tube plug, and the plurality of rubber friction pads are in contact with the fixing ring.

[0008] Preferably, a retaining groove is provided on the retaining ring, and the movable rod is slidably installed in the retaining groove.

[0009] Preferably, a driving ring is rotatably mounted on the retaining ring, a plurality of transmission rods are rotatably mounted on the driving ring, and the other ends of the plurality of transmission rods are rotatably mounted on the plurality of movable rods respectively.

[0010] Preferably, the retaining ring is provided with a plurality of positioning holes, the driving ring is provided with a plurality of positioning shafts, and the plurality of positioning holes are respectively slidably mounted in the plurality of positioning shafts.

[0011] Preferably, the positioning structure includes a mounting groove, the control handle is provided with a mounting groove, a rotating shaft is rotatably installed inside the mounting groove, a gear is sleeved on the rotating shaft, a toothed belt is sleeved on the driving ring, and the rotating shaft is meshed with the toothed belt.

[0012] Preferably, a limiting groove is provided on the inner wall of the bottom side of the installation groove, a rotating shaft is rotatably installed in the limiting groove, and the rotating shaft is installed on the bottom side of the rotating shaft.

[0013] Preferably, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is mounted on the inner wall of the limiting groove, and the other end of the torsion spring is mounted on the outer surface of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model, through the arrangement of the rubber friction pad, movable rod, driving ring and fixed ring and other structures, after the sampling test tube is placed on the test tube plug, the driving ring is used to drive the transmission rod to rotate, and the transmission rod drives the rubber friction pad on the movable rod to quickly snap onto the fixed ring on the test tube plug, so that the sampling test tube can be conveniently fixed on the test tube plug for use. At the same time, the elasticity of the rubber friction pad can be used to effectively prevent the mechanical pressure on the rubber friction pad from squeezing and damaging the sampling test tube when the sampling test tube is fixed. The above structure is not only simple to operate, but also convenient and quick, thereby reducing the operating burden on the test personnel.

[0016] (2) The utility model, through the arrangement of the torsion spring, the rotating shaft, the gear and the toothed belt and other structures, when the test tube plug is about to be inserted into the sampling test tube, it is only necessary to rotate the handle on the rotating shaft to drive the gear to rotate, and at the same time the torsion spring is deformed. After the sampling test tube is inserted into the test tube plug, it is only necessary to loosen the rotating handle, and the restoring force of the torsion spring can be used to drive the rubber friction pad to quickly fix the sampling test tube, thereby providing power support for the fixation of the sampling test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection structure of the sampling tube, the retaining ring and the gear of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure of the test tube plug, the sampling test tube and the retaining ring of the utility model;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the control handle, the limit groove and the rotating shaft of the utility model;

[0021] In the figure: 1. control handle; 2. test tube plug; 3. sampling test tube; 4. retaining ring; 41. movable rod; 42. rubber friction pad; 43. driving ring; 44. transmission rod; 45. positioning shaft; 46. retaining groove; 47. positioning hole; 48. fixing ring; 5. installation groove; 51. limiting groove; 52. rotating shaft; 53. rotating shaft; 54. gear; 55. torsion spring; 56. toothed belt. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Please refer to Figure 1-4 The utility model provides a technical solution: a device for pesticide quality detection, comprising a control handle 1, a test tube plug 2 is installed on the control handle 1, a sampling test tube 3 is installed on the test tube plug 2, a locking structure is installed on the control handle 1, the locking structure is in contact with the test tube plug 2, a positioning structure is engaged on the locking structure, and the positioning structure is rotatably installed on the control handle 1;

[0024] In order to conveniently fix the sampling test tube 3 on the control handle 1 for testing, a locking structure is arranged on the control handle 1, specifically including a retaining ring 4, the retaining ring 4 is installed on the control handle 1, a plurality of movable rods 41 are slidably installed on the retaining ring 4, a plurality of movable rods 41 are installed with rubber friction pads 42, a fixing ring 48 is installed on the test tube plug 2, a plurality of rubber friction pads 42 are in contact with the fixing ring 48, a retaining groove 46 is provided on the retaining ring 4, the movable rod 41 is slidably installed in the retaining groove 46, a driving ring 43 is rotatably installed on the retaining ring 4, a plurality of transmission rods 44 are rotatably installed on the driving ring 43, and the other ends of the plurality of transmission rods 44 are rotatably installed on the plurality of A plurality of positioning holes 47 are installed on a movable rod 41, a plurality of positioning shafts 45 are opened on the driving ring 43, and the plurality of positioning holes 47 are respectively slidably installed in the plurality of positioning shafts 45. After the sampling test tube 3 is placed on the test tube plug 2, the driving ring 43 is used to drive the transmission rod 44 to rotate, and the transmission rod 44 drives the rubber friction pad 42 on the movable rod 41 to quickly snap onto the fixing ring 48 on the test tube plug 2, so that the sampling test tube 3 can be conveniently fixed on the test tube plug 2 for use. The elastic performance of the rubber friction pad 42 can also effectively prevent the mechanical pressure on the rubber friction pad 42 from squeezing and damaging the sampling test tube 3 when the sampling test tube 3 is fixed.

[0025] The working principle is as follows: when it is necessary to fix the sampling test tube 3 on the control handle 1 for testing, first manually rotate the rotating handle on the rotating shaft 53, and use the rotating handle to drive the rotating shaft 53 to rotate, the rotating shaft 53 drives the rotating shaft 52 to rotate, and the rotating shaft 52 drives the torsion spring 55 to deform. At the same time, the rotating shaft 53 drives the gear 54 to rotate, the gear 54 drives the toothed belt 56 to rotate, the toothed belt 56 drives the driving ring 43 to rotate, the driving ring 43 drives the transmission rod 44 to rotate, and the transmission rod 44 drives the rubber friction pad 42 on the movable rod 41 to retract backwards. At this time, after the sampling test tube 3 is inserted into the test tube plug 2 on the control handle 1, it is only necessary to loosen the rotating handle on the rotating shaft 53, and use the limiting The restoring force of the torsion spring 55 on the rotating shaft 52 in the slot 51 drives the rotating shaft 52 to rotate in the opposite direction, and the rotating shaft 52 drives the rotating shaft 53 to rotate, and the rotating shaft 53 drives the gear 54 to rotate, and the gear 54 drives the toothed belt 56 to mesh and rotate, and the toothed belt 56 drives the driving ring 43 to rotate, and the driving ring 43 drives the transmission rod 44 to rotate in the opposite direction, and the transmission rod 44 drives the movable rod 41 to move toward the middle, and the movable rod 41 drives the rubber friction pad 42 to quickly clamp on the fixing ring 48 on the sampling test tube 3, so that the sampling test tube 3 can be conveniently fixed on the control handle 1 for testing. The above structure is not only simple to operate, but also convenient and quick, thereby reducing the operating burden for the test personnel.

[0026] Embodiment 2: On the basis of embodiment 1, in order to provide power for the movement of the locking structure, a positioning structure is arranged on the control handle 1, which specifically includes a mounting slot 5. The control handle 1 is provided with a mounting slot 5, and a rotating shaft 53 is rotatably installed in the mounting slot 5. A gear 54 is sleeved on the rotating shaft 53, and a toothed belt 56 is sleeved on the driving ring 43. The rotating shaft 53 is meshed with the toothed belt 56. A limiting slot 51 is provided on the inner wall of the bottom side of the mounting slot 5, and a rotating shaft 52 is rotatably installed in the limiting slot 51. The rotating shaft 52 is installed on the bottom side of the rotating shaft 53, and a torsion spring 55 is sleeved on the rotating shaft 52. One end of the torsion spring 55 is installed on the inner wall of the limiting slot 51, and the other end of the torsion spring 55 is installed on the outer surface of the rotating shaft 52. First, manually rotate the rotating handle on the rotating shaft 53, and use the rotating handle to rotate the rotating shaft 53, and the rotating shaft 53 drives the rotating The movable shaft 52 rotates, and the rotating shaft 52 drives the torsion spring 55 to deform. At the same time, the rotating shaft 53 drives the gear 54 to rotate, and the gear 54 drives the toothed belt 56 to rotate. The toothed belt 56 drives the driving ring 43 to rotate, and the driving ring 43 drives the rubber friction pad 42 to retract backward, thereby facilitating the installation of the sampling test tube 3. After the sampling test tube 3 is installed, it is only necessary to loosen the rotating handle on the rotating shaft 53, and use the restoring force of the torsion spring 55 on the rotating shaft 52 in the limiting groove 51 to drive the rotating shaft 52 to rotate in the opposite direction, and the rotating shaft 52 drives the rotating shaft 53 to rotate, and the rotating shaft 53 drives the gear 54 to rotate, and the gear 54 drives the toothed belt 56 to mesh and rotate, and the toothed belt 56 drives the driving ring 43 to rotate, and the driving ring 43 drives the rubber friction pad 42 to be clamped on the fixing ring 48 on the sampling test tube 3, thereby providing power support for the fixation of the sampling test tube 3. The remaining features are the same as those in Example 1.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for pesticide quality detection, comprising a control handle (1), a test tube plug (2) being mounted on the control handle (1), and a sampling test tube (3) being mounted on the test tube plug (2), characterized in that: The control handle (1) is provided with a locking structure, the locking structure is in contact with the test tube plug (2), the locking structure is meshed with a positioning structure, the positioning structure is rotatably mounted on the control handle (1), the locking structure comprises a retaining ring (4), the retaining ring (4) is mounted on the control handle (1), a plurality of movable rods (41) are slidably mounted on the retaining ring (4), the plurality of movable rods (41) are all provided with rubber friction pads (42), the test tube plug (2) is provided with a fixing ring (48), the plurality of rubber friction pads (42) are all in contact with the fixing ring (48), a fixing groove (46) is provided on the fixing ring (4), the movable rod (41) is slidably mounted in the fixing groove (46), the fixing ring (4) is rotatably mounted A driving ring (43) is provided, on which a plurality of transmission rods (44) are rotatably mounted, and the other ends of the plurality of transmission rods (44) are rotatably mounted on a plurality of movable rods (41), the retaining ring (4) is provided with a plurality of positioning holes (47), the driving ring (43) is provided with a plurality of positioning shafts (45), the plurality of positioning holes (47) are respectively slidably mounted in the plurality of positioning shafts (45), the positioning structure comprises a mounting groove (5), the control handle (1) is provided with a mounting groove (5), a rotating shaft (53) is rotatably mounted in the mounting groove (5), a gear (54) is sleeved on the rotating shaft (53), a toothed belt (56) is sleeved on the driving ring (43), and the rotating shaft (53) is meshed with the toothed belt (56).

2. A device for pesticide quality detection according to claim 1, characterized in that: A limiting groove (51) is provided on the inner wall of the bottom side of the installation groove (5), a rotating shaft (52) is rotatably installed in the limiting groove (51), and the rotating shaft (52) is installed on the bottom side of the rotating shaft (53).

3. A device for pesticide quality detection according to claim 2, characterized in that: A torsion spring (55) is sleeved on the rotating shaft (52), one end of the torsion spring (55) is mounted on the inner wall of the limiting groove (51), and the other end of the torsion spring (55) is mounted on the outer surface of the rotating shaft (52).

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