Rotational viscometer for detecting properties of agricultural chemicals

By designing a worm gear and worm wheel meshing transmission and a pull rod slot structure, the inconvenience of adjusting the height and level of the rotary viscometer was solved, realizing the accuracy and convenience of pesticide detection, and improving the operation convenience and detection accuracy of the equipment.

CN224500301UActive Publication Date: 2026-07-14CHIFENG ZHONGNONGDA BIOCHEM SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHIFENG ZHONGNONGDA BIOCHEM SCI & TECH
Filing Date
2025-07-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing rotary viscometers require precise height and level adjustment before use to ensure proper contact between the rotor and the pesticide sample, ensuring accurate measurement. The existing height adjustment mechanism typically relies on multi-stage nested sleeves and bolts for locking, which is inconvenient as the viscometer must be held steady during the locking process.

Method used

A rotary viscometer for pesticide property testing was designed, including an adjustment mechanism and a testing mechanism. The movable seat is stably adjusted by the meshing of a worm gear and a worm wheel. The connecting sleeve and connecting rod are quickly disassembled and assembled by a lever and a slot structure. Combined with a bubble level for auxiliary calibration, the horizontal state of the equipment is ensured.

Benefits of technology

It enables precise adjustment of the height and level of the rotary viscometer, improving operational convenience and testing accuracy, avoiding data deviations caused by equipment shaking, and enhancing the equipment's flexibility and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of pesticide characteristic detection with rotary viscometer, belong to viscometer technical field.This kind of pesticide characteristic detection with rotary viscometer, including adjusting mechanism and detection mechanism, the adjusting mechanism includes base, the upper end surface center of base is fixedly installed with adjusting lever, rack is embedded and installed on one side of adjusting lever, sliding sleeve is equipped with movable seat on adjusting lever, connecting rod is fixedly installed on one side of movable seat, gear is rotatably connected with the inside of movable seat, gear and rack are mutually engaged;The detection mechanism includes rotary viscometer body, connecting sleeve is fixedly installed on one side of rotary viscometer body, one end of connecting sleeve and connecting rod are inserted, horizontal bubble is installed on the upper end of rotary viscometer body, the utility model, can effectively improve the practicality of rotary viscometer, with higher practical value.
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Description

Technical Field

[0001] This utility model relates to the field of viscometer technology, specifically a rotary viscometer for detecting pesticide properties. Background Technology

[0002] In the process of pesticide production and quality testing, viscosity is one of the important indicators for measuring pesticide quality. Appropriate viscosity can ensure the uniformity and stability of pesticides during spraying, dilution and other processes, and affect their effectiveness.

[0003] Based on the above, the inventors have discovered the following problems: Before using a rotary viscometer, the height and level of the equipment must be precisely adjusted to ensure proper contact between the rotor and the pesticide sample to be tested and to ensure measurement accuracy. Existing equipment typically relies on multi-stage nested sleeves and bolt locking, which is inconvenient as the viscometer must be held steady while locking the bolts.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a rotational viscometer for pesticide characteristic testing, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a rotational viscometer for detecting pesticide properties, in order to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A rotary viscometer for pesticide property testing includes an adjustment mechanism and a detection mechanism. The adjustment mechanism includes a base, an adjustment rod fixedly mounted at the center of the upper surface of the base, a rack embedded in one side of the adjustment rod, a movable seat slidably mounted on the adjustment rod, a connecting rod fixedly mounted on one side of the movable seat, and a gear rotatably connected to the inner side of the movable seat, the gear meshing with the rack. The detection mechanism includes a rotary viscometer body, a connecting sleeve fixedly mounted on one side of the rotary viscometer body, the connecting sleeve being inserted into one end of the connecting rod, and a spirit level mounted on the upper end of the rotary viscometer body.

[0008] Furthermore, a worm gear is sleeved on one side of the central shaft of the gear, and a worm is rotatably connected to the bottom end of the worm gear inside the movable seat, with the worm and the worm gear meshing with each other.

[0009] The beneficial effects of adopting the above-mentioned further solution are that the meshing transmission of the worm and worm wheel converts the rotational motion of the worm into the circular motion of the worm wheel, thereby driving the gear to rotate and realizing the stable adjustment of the lifting of the movable seat; at the same time, the worm and worm wheel transmission has a self-locking function, which can prevent the movable seat from sliding down due to external force during the testing process and ensure the fixed position of the testing mechanism.

[0010] Furthermore, one end of the worm extends outward through the movable seat and is fitted with a rotating wheel.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the rotating wheel serves as the operating end, making it easy for the operator to manually rotate the worm gear. Through intuitive rotation operation, the height of the movable seat can be precisely adjusted, allowing the rotary viscometer body to be quickly positioned to the appropriate detection height, thus improving operational convenience.

[0012] Furthermore, each side of the connecting sleeve is equipped with a retaining seat, and each retaining seat has a pull rod that can be movably inserted inside.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the pull rod can move within the card slot, and the connecting sleeve and the connecting rod can be quickly connected and separated through the insertion and extraction action, which facilitates the installation, disassembly and maintenance of the rotary viscometer body and improves the flexibility of equipment use.

[0014] Furthermore, each of the opposing ends of the levers is fitted with a limiting ring inside the card holder, and the opposing ends of the pair of levers extend through the connecting sleeve into the interior.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the limiting ring restricts the movement range of the pull rod, preventing the pull rod from completely disengaging from the holder; at the same time, it ensures that the pull rod can accurately reset under the action of the spring, ensuring the reliability of the connection between the connecting sleeve and the connecting rod.

[0016] Furthermore, each end of the connecting rod has a slot on both sides, and a pair of slots are respectively inserted into the opposite ends of a pair of pull rods.

[0017] The beneficial effect of adopting the above-mentioned further solution is that after the pull rod is inserted into the slot, a stable mechanical connection structure is formed, which firmly fixes the rotary viscometer body to the adjustment mechanism, avoids deviation of the test data due to shaking during the test, and ensures the test accuracy.

[0018] Furthermore, a spring is fitted onto one end of the lever located on the limiting ring, and the two ends of the spring are respectively connected to one side of the limiting ring and one end of the inside of the card seat.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the spring provides a restoring force for the pull rod. When the pull rod is inserted into the slot, the spring continuously applies pressure to keep the pull rod tightly engaged and prevent the connection from becoming loose. When disassembling, the pull rod can be pulled outward to compress the spring to separate it, making the operation convenient and efficient.

[0020] Furthermore, a pair of first support rods and second support rods are respectively installed on both sides of the base. One end of each of the first support rods and the second support rods is threaded with an adjusting bolt, and the bottom end of each adjusting bolt is rotatably fitted with a support seat.

[0021] The beneficial effects of adopting the above-mentioned further solution are that the adjusting bolt can be rotated up and down along the first support rod and the second support rod, driving the support seat to rise and fall, and adjusting the level of the base according to the flatness of the ground; the spirit level assists in calibration, ensuring that the rotary viscometer body is in a horizontal position, eliminating the interference of equipment tilt on the pesticide viscosity detection results.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The rotary viscometer for pesticide characteristic testing uses a rotating wheel to drive a worm gear, which, through the meshing of a worm wheel, gear, and rack, causes the movable seat to rise and fall along the adjusting rod, precisely adjusting the height of the testing mechanism. The connecting sleeve and connecting rod are quickly disassembled and assembled via a pull rod and a locking slot. A spirit level assists in calibrating the level of the rotary viscometer body. The first and second support rods, in conjunction with the adjusting bolt and support base, can adapt to different ground surfaces to adjust the stability of the base, ensuring the accuracy and convenience of pesticide viscosity testing. The meshing transmission of the worm gear and worm wheel converts the rotational motion of the worm gear into the circular motion of the worm wheel, which in turn drives the gear to rotate, achieving stable adjustment of the movable seat's height. Simultaneously, the worm gear and worm wheel transmission has a self-locking function, preventing the movable seat from sliding down due to external force during testing, ensuring the fixed position of the testing mechanism. The pull rod can move within the locking slot, enabling quick connection and separation of the connecting sleeve and connecting rod through insertion and removal, facilitating the installation, disassembly, and maintenance of the rotary viscometer body, and improving the flexibility of equipment use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the rotational viscometer for pesticide characteristic testing disclosed in this embodiment of the invention. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of the rotational viscometer for pesticide characteristic testing disclosed in this embodiment of the invention. Figure 2 ;

[0025] Figure 3 This is a three-dimensional structural diagram of the rotational viscometer for pesticide characteristic testing disclosed in this embodiment of the invention. Figure 3 ;

[0026] Figure 4 This is a side cross-sectional view of the connector of the rotary viscometer for pesticide characteristic testing disclosed in this embodiment of the present invention;

[0027] Figure 5This is a partial front cross-sectional view of the adjusting rod and movable seat of the rotary viscometer for pesticide characteristic testing disclosed in an embodiment of this utility model.

[0028] In the diagram: 1. Adjustment mechanism; 101. Base; 102. First support rod; 103. Second support rod; 104. Adjustment bolt; 105. Support seat; 106. Adjustment rod; 107. Rack; 108. Movable seat; 109. Rotary wheel; 110. Connecting rod; 111. Slot; 112. Gear; 113. Worm gear; 114. Worm; 2. Detection mechanism; 201. Rotary viscometer body; 202. Bubble level; 203. Connecting sleeve; 204. Pull rod; 205. Slot; 206. Limiting ring; 207. Spring. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a rotary viscometer for pesticide characteristic testing, including an adjustment mechanism 1 and a detection mechanism 2. The adjustment mechanism 1 includes a base 101, an adjustment rod 106 fixedly installed at the center of the upper end face of the base 101, a rack 107 embedded on one side of the adjustment rod 106, a movable seat 108 slidably sleeved on the adjustment rod 106, a connecting rod 110 fixedly installed on one side of the movable seat 108, and a gear 112 rotatably connected to the inner side of the movable seat 108, the gear 112 meshing with the rack 107; the detection mechanism 2 includes a rotary viscometer body 201, a connecting sleeve 203 fixedly installed on one side of the rotary viscometer body 201, the connecting sleeve 203 and the connecting rod 110 are connected to the rack 107. One end of the connecting rod 110 is inserted, and a level bubble 202 is installed on the upper end of the rotary viscometer body 201. The adjustment mechanism 1 drives the worm gear 114 by rotating the rotating wheel 109, which in turn meshes with the worm wheel 113, gear 112 and rack 107 to make the movable seat 108 rise and fall along the adjusting rod 106, thus precisely adjusting the height of the detection mechanism 2. The connecting sleeve 203 and the connecting rod 110 are quickly disassembled and assembled through the pull rod 204 and the slot 111. The level bubble 202 assists in calibrating the level of the rotary viscometer body 201. The first support rod 102 and the second support rod 103, together with the adjusting bolt 104 and the support seat 105, can adapt to different ground conditions to adjust the stability of the base 101, ensuring the accuracy and convenience of pesticide viscosity detection.

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5A worm gear 113 is sleeved on one side of the central shaft of gear 112. A worm 114 is rotatably connected to the bottom end of the worm gear 113 inside the movable seat 108. The worm 114 meshes with the worm gear 113. One end of the worm 114 extends outward through the movable seat 108 and is fitted with a rotating wheel 109. Both sides of the connecting sleeve 203 are equipped with retaining seats 205. A pull rod 204 is movably inserted into each retaining seat 205. Limiting rings 206 are fitted on the outer sides of the opposing ends of a pair of pull rods 204 inside the retaining seats 205. The opposing ends of the pair of pull rods 204 extend inward through the connecting sleeve 203. A retaining groove 111 is opened on both sides of one end of the connecting rod 110. A pair of retaining grooves 111 are respectively inserted into the opposing ends of a pair of pull rods 204. 4. A spring 207 is sleeved at one end of the limiting ring 206. The two ends of the spring 207 are respectively connected to one side of the limiting ring 206 and one end of the inside of the card seat 205. A pair of first support rods 102 and second support rods 103 are respectively installed on both sides of the base 101. One end of the first support rod 102 and the second support rod 103 are threadedly connected to an adjusting bolt 104. The bottom end of the adjusting bolt 104 is rotatably sleeved with a support seat 105. The worm 114 meshes with the worm wheel 113 to drive the rotation of the worm 114 into the circular motion of the worm wheel 113, which in turn drives the gear 112 to rotate, realizing the stable adjustment of the lifting and lowering of the movable seat 108. At the same time, the transmission between the worm 114 and the worm wheel 113 has a self-locking function, which can prevent the movable seat 108 from being damaged during inspection. During the measurement process, the device slides down due to external force, ensuring the position of the detection mechanism 2 remains fixed. The rotating wheel 109 serves as the operating end, allowing the operator to manually rotate the worm gear 114. This intuitive rotational operation enables precise adjustment of the height of the movable seat 108, allowing the rotary viscometer body 201 to be quickly positioned at the appropriate detection height, improving operational convenience. The pull rod 204 can move within the retaining seat 205, enabling quick connection and separation of the connecting sleeve 203 and the connecting rod 110 through insertion and removal actions. This facilitates the installation, disassembly, and maintenance of the rotary viscometer body 201, improving the flexibility of equipment use. The limiting ring 206 restricts the movement range of the pull rod 204, preventing it from completely detaching from the retaining seat 205. Simultaneously, it ensures that the pull rod 204 accurately resets under the action of the spring 207, guaranteeing the connection... The connection between the sleeve 203 and the connecting rod 110 is reliable. After the pull rod 204 is inserted into the slot 111, a stable mechanical connection structure is formed, which firmly fixes the rotary viscometer body 201 to the adjustment mechanism 1, avoiding deviation of the test data due to shaking during the test and ensuring the test accuracy. The spring 207 provides the return spring force for the pull rod 204. When the pull rod 204 is inserted into the slot 111, the spring 207 continuously applies pressure to make the pull rod 204 tightly locked, preventing the connection from loosening. When disassembling, the pull rod 204 can be pulled outward to compress the spring 207 to separate. The operation is convenient and efficient. The adjusting bolt 104 can be rotated up and down along the first support rod 102 and the second support rod 103 to drive the support base 105 to rise and fall, and adjust the level of the base 101 according to the flatness of the ground.The horizontal bubble 202 assists in calibration, ensuring that the rotary viscometer body 201 is in a horizontal position, eliminating interference from equipment tilt on pesticide viscosity test results.

[0033] Specifically, the working principle of this rotary viscometer for pesticide characteristic testing is as follows: During use, first, based on the flatness of the ground, by rotating the adjusting bolt 104, the support base 105 is raised and lowered along the first support rod 102 and the second support rod 103. Combined with the level bubble 202 on the rotary viscometer body 201, the base 101 is adjusted to a horizontal state. Then, the operator rotates the rotating wheel 109, causing the worm gear 114 to rotate. The worm gear 114 meshes with the worm wheel 113, causing the worm wheel 113 to rotate, which in turn drives the gear 112, coaxial with the worm wheel 113, to rotate. The gear 112 meshes with the rack 107 on the adjusting rod 106, causing the movable seat 108 to rise and fall smoothly along the adjusting rod 106, adjusting the connecting rod 110 to a suitable height. Next, the connecting sleeve 203 is... Pull the connecting rod 110 outwards to compress the spring 207, causing the connecting rod 204 to retract into the retainer 205. After the connecting rod 110 is fully inserted into the connecting sleeve 203, release the connecting rod 204. Under the elastic force of the spring 207, the connecting rod 204 will return to its original position, allowing it to pass through the connecting sleeve 203 and insert into the retainer 111 of the connecting rod 110. This ensures a secure connection between the rotary viscometer body 201 and the adjustment mechanism 1. After installation, recalibrate the instrument level using the bubble level 202. The rotary viscometer body 201 can then be used to test the viscosity of pesticides. After testing, pull the connecting rod 204 outwards again to compress the spring 207, allowing the rotary viscometer body 201 to be separated from the adjustment mechanism 1 for easy disassembly and maintenance.

[0034] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A rotational viscometer for detecting pesticide properties, characterized in that, The device includes an adjustment mechanism (1) and a detection mechanism (2). The adjustment mechanism (1) includes a base (101). An adjustment rod (106) is fixedly installed at the center of the upper surface of the base (101). A rack (107) is embedded on one side of the adjustment rod (106). A movable seat (108) is slidably sleeved on the adjustment rod (106). A connecting rod (110) is fixedly installed on one side of the movable seat (108). A gear (112) is rotatably connected to the inner side of the movable seat (108). The gear (112) meshes with the rack (107). The detection mechanism (2) includes a rotary viscometer body (201). A connecting sleeve (203) is fixedly installed on one side of the rotary viscometer body (201). The connecting sleeve (203) is inserted into one end of the connecting rod (110). A level bubble (202) is installed at the upper end of the rotary viscometer body (201).

2. The rotational viscometer for pesticide characteristic testing according to claim 1, characterized in that, A worm gear (113) is sleeved on one side of the central shaft of the gear (112). A worm (114) is rotatably connected to the bottom end of the worm gear (113) inside the movable seat (108). The worm (114) and the worm gear (113) mesh with each other.

3. The rotational viscometer for pesticide characteristic testing according to claim 2, characterized in that, One end of the worm (114) extends outward through the movable seat (108) and is fitted with a rotating wheel (109).

4. The rotational viscometer for pesticide characteristic testing according to claim 1, characterized in that, Both sides of the connecting sleeve (203) are equipped with a card holder (205), and a pull rod (204) is movably inserted into the inside of each card holder (205).

5. A rotational viscometer for pesticide characteristic testing according to claim 4, characterized in that, Each pair of levers (204) has a limiting ring (206) fitted on the outer side of the opposite end inside the card holder (205), and the opposite ends of each pair of levers (204) extend through the connecting sleeve (203) into the interior.

6. A rotational viscometer for pesticide characteristic testing according to claim 5, characterized in that, The connecting rod (110) has slots (111) on both sides of one end, and the pair of slots (111) are respectively inserted into the opposite ends of a pair of pull rods (204).

7. A rotational viscometer for pesticide characteristic testing according to claim 6, characterized in that, The lever (204) is fitted with a spring (207) at one end of the limiting ring (206). The two ends of the spring (207) are respectively connected to one side of the limiting ring (206) and one end of the inside of the card seat (205).

8. A rotational viscometer for pesticide characteristic testing according to claim 1, characterized in that, A pair of first support rods (102) and second support rods (103) are respectively installed on both sides of the base (101). One end of the first support rod (102) and the second support rod (103) is threaded with an adjusting bolt (104). The bottom end of the adjusting bolt (104) is rotatably fitted with a support seat (105).