Liquid dropping funnel with adjustable liquid dropping speed
By designing components such as micro motors, cam discs, coil springs and sliding rods in the drop funnel, the problem of dropping acceleration and flow reduction when the liquid volume decreases, achieving uniform and accurate dropping of the liquid.
Patent Information
- Application Number
- CN202421338087.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When the liquid volume of the existing drop funnel decreases, the drop acceleration and flow rate gradually decrease, resulting in the liquid dropping cannot maintain the set uniform speed.
A drop funnel including a funnel body, a liquid outlet valve, a liquid outlet tube, a buffer tube, a drip speed adjustment tube, a micro motor, a blocking plate, a sliding rod and a coil spring are designed. The cam disk is driven to rotate through the micro motor, and combined with the role of the coil spring and the sliding rod, the uniform drip of liquid is achieved.
The liquid acceleration is adjusted according to the needs of use, ensuring the uniform drip of the liquid, reducing the impact of liquid level changes on the dropping amount, and improving the accuracy of dripping liquid.
Smart Images
Figure CN222574313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dropping funnels, in particular to a dropping funnel with adjustable dropping speed. Background Art
[0002] The dropping funnel is a common auxiliary tool in the laboratory. It usually consists of two parts: the upper part is a funnel with a relatively small capacity, and the lower part is a fine valve. In the experiment, the valve can be used to control the flow and speed to add liquid into containers such as test tubes and beakers.
[0003] The current dropping funnel controls the dripping speed and flow rate of the liquid in the funnel through a valve. However, as the amount of liquid inside the liquid funnel decreases, the dripping speed and flow rate will gradually decrease, resulting in the inability to maintain the set uniform dripping speed of the liquid. For this reason, we propose a dropping funnel with adjustable dripping speed. Utility Model Content
[0004] The utility model aims to provide a dropping funnel with adjustable dripping speed, which has the advantages of being able to adjust the liquid acceleration according to the use requirements and dripping the liquid at a uniform speed, and solves the problem that the current dropping funnel controls the dripping speed and flow rate of the liquid in the funnel through a valve, but as the amount of liquid in the liquid funnel decreases, the dripping speed and flow rate will gradually decrease, resulting in the inability to maintain the set uniform dripping speed when dripping the liquid.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dropping funnel with adjustable dripping speed, comprising a funnel body, a liquid outlet valve fixedly connected to the lower surface of the funnel body, a liquid outlet pipe fixedly connected to the lower surface of the liquid outlet valve, a buffer tube fixedly connected to the end of the liquid outlet pipe, a dripping speed adjustment tube fixedly connected to the end of the buffer tube, a first slide groove is provided on one side of the inner wall of the dripping speed adjustment tube, a first blocking plate is slidably installed inside the first slide groove, and a sliding rod is fixedly connected to the outer side of the first blocking plate, a coil spring is fixedly connected to the outer surface of the sliding rod, a cam disk is rotatably installed inside the dripping speed adjustment tube near the outer side of the sliding rod through a rotating shaft, and a motor speed regulator and a micro motor are fixedly installed on the front surface of the dripping speed adjustment tube.
[0006] Preferably, a dripping tube is fixedly connected to the lower surface of the dripping speed regulating tube.
[0007] Preferably, the end of the micromotor output shaft and the end of the rotating shaft are fixedly connected.
[0008] Preferably, the motor speed regulator is electrically connected to the micro motor.
[0009] Preferably, a rubber pad is fixedly installed on the outer surface of the funnel body near the lower surface.
[0010] Preferably, a second slide groove is provided on the side of the inner wall of the drip speed regulating tube away from the first slide groove, a second blocking plate is slidably installed inside the second slide groove, a nut is fixedly installed on the side of the outer surface of the drip speed regulating tube close to the second slide groove, a screw rod is movably inserted inside the nut, and one end of the screw rod located inside the drip speed regulating tube is rotatably connected to the outside of the second blocking plate through a connecting shaft.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model achieves the effect of adjusting the liquid acceleration according to the use requirements and dripping the liquid at a uniform speed by arranging a funnel body, a liquid outlet valve, a liquid outlet pipe, a drip speed regulating pipe, a micro motor, a first blocking plate, a sliding rod, a spiral spring, a cam plate and a motor speed regulator. The liquid inside the funnel body enters the buffer tube, the micro motor drives the cam plate to rotate, and under the action of the spiral spring, the sliding rod drives the first blocking plate to move back and forth, so that the liquid inside the drip speed regulating pipe drips out at a certain speed, and the speed of the liquid dripping can be controlled by controlling the speed of the micro motor through the motor speed regulator, and the dripping speed is uniform.
[0013] 2. The utility model achieves the effect of reducing the influence of the liquid level change inside the funnel body on the liquid dripping amount by setting a buffer tube, so that the amount of liquid dripping is more accurate. The liquid inside the funnel body drips into the buffer tube through the liquid outlet tube, and the opening of the liquid outlet valve is adjusted to keep the inside of the buffer tube within a certain page height range, thereby reducing the influence of the liquid level change inside the funnel body on the liquid dripping amount, so that the amount of liquid dripping is more accurate.
[0014] 3. The utility model achieves the effect of controlling the amount of liquid dripping through the screw, the nut and the second blocking plate. The second blocking plate is driven to move by rotating the screw, and the distance between the first blocking plate and the second blocking plate is adjusted when the first blocking plate is away from the second blocking plate, thereby controlling the amount of liquid dripping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;
[0016] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;
[0017] Figure 3 This is a schematic diagram of the main structure of the utility model;
[0018] Figure 4 The utility model is a schematic diagram of the partial main cross-sectional structure of the drip rate regulating tube.
[0019] Figure numerals: 1. funnel body; 2. liquid outlet valve; 3. liquid outlet pipe; 4. buffer tube; 5. dripping tube; 6. dripping speed adjustment tube; 7. micro motor; 8. motor speed regulator; 9. screw; 10. nut; 11. rubber pad; 12. first blocking plate; 13. sliding rod; 14. cam plate; 15. rotating shaft; 16. spiral spring; 17. first slide groove; 18. second blocking plate; 19. second slide groove; 20. connecting shaft. DETAILED DESCRIPTION
[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Embodiment 1
[0022] like Figure 1-Figure 4 As shown, the utility model proposes a dropping funnel with adjustable dripping speed, including a funnel body 1, a liquid outlet valve 2 is fixedly connected to the lower surface of the funnel body 1, a liquid outlet pipe 3 is fixedly connected to the lower surface of the liquid outlet valve 2, a buffer tube 4 is fixedly connected to the end of the liquid outlet pipe 3, the liquid inside the funnel body 1 drips into the buffer tube 4 through the liquid outlet pipe 3, and the opening of the liquid outlet valve 2 is adjusted so that the inside of the buffer tube 4 is kept within a certain page height range, thereby reducing the influence of the liquid level change inside the funnel body 1 on the liquid dripping amount, so that the amount of liquid dripped is more accurate, and a dripping speed regulating tube 6 is fixedly connected to the end of the buffer tube 4, and a first slide groove 17 is arranged on one side of the inner wall of the dripping speed regulating tube 6, and a first blocking plate 12 is slidably installed inside the first slide groove 17, and the first blocking plate 12 is fixedly connected to the outside of the sliding rod 13, and the outer surface of the sliding rod 13 is fixedly connected to the coil spring 16, the inside of the drip speed regulating tube 6 is rotatably installed with a cam plate 14 through a rotating shaft 15 near the outside of the sliding rod 13, the front surface of the drip speed regulating tube 6 is fixedly installed with a motor speed regulator 8 and a micro motor 7, the end of the output shaft of the micro motor 7 and the end of the rotating shaft 15 are fixedly connected, the motor speed regulator 8 and the micro motor 7 are electrically connected, the micro motor 7 drives the cam plate 14 to rotate through the rotating shaft 15, and the motor speed regulator 8 controls the speed of the micro motor 7, the lower surface of the drip speed regulating tube 6 is fixedly connected with a drip tube 5, and the outer surface of the funnel body 1 is fixedly installed with a rubber pad 11 near the lower surface, and the rubber pad 11 plays a protective role when the funnel body 1 is clamped.
[0023] When the utility model is in use, the liquid inside the funnel body 1 enters the cache tube 4, the micro motor 7 drives the cam plate 14 to rotate, and under the action of the spiral spring 16, the sliding rod 13 drives the first blocking plate 12 to move back and forth, so that the liquid inside the drip speed regulating tube 6 drips out at a certain speed, and the speed of the liquid dripping can be controlled by controlling the rotation speed of the micro motor 7 through the motor speed regulator 8, and the dripping speed is uniform.
[0024] Embodiment 2
[0025] like Figure 3 and Figure 4 As shown, the utility model proposes a dropping funnel with adjustable dripping speed. Compared with the first embodiment, this embodiment also includes a second slide groove 19 provided on the side of the inner wall of the dripping speed regulating tube 6 away from the first slide groove 17, and a second blocking plate 18 is slidably installed inside the second slide groove 19. A nut 10 is fixedly installed on the side of the outer surface of the dripping speed regulating tube 6 close to the second slide groove 19, and a screw rod 9 is movably inserted inside the nut 10, and one end of the screw rod 9 located inside the dripping speed regulating tube 6 is rotatably connected to the outside of the second blocking plate 18 through a connecting shaft 20.
[0026] In this embodiment, the second blocking plate 18 is driven to move by rotating the screw 9, and the distance between the first blocking plate 12 and the second blocking plate 18 is adjusted when the first blocking plate 12 is away from the second blocking plate 18, so as to control the dripping amount of the liquid.
[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A dropping funnel with adjustable dropping speed, comprising a funnel body (1), characterized in that: The lower surface of the funnel body (1) is fixedly connected with a liquid outlet valve (2), the lower surface of the liquid outlet valve (2) is fixedly connected with a liquid outlet pipe (3), the end of the liquid outlet pipe (3) is fixedly connected with a buffer pipe (4), the end of the buffer pipe (4) is fixedly connected with a dripping speed regulating pipe (6), a first slide groove (17) is arranged on one side of the inner wall of the dripping speed regulating pipe (6), a first blocking plate (12) is slidably installed inside the first slide groove (17), and a sliding rod (13) is fixedly connected to the outer side of the first blocking plate (12), a spiral spring (16) is fixedly connected to the outer surface of the sliding rod (13), a cam plate (14) is rotatably installed inside the dripping speed regulating pipe (6) near the outer side of the sliding rod (13) through a rotating shaft (15), and a motor speed regulator (8) and a micro motor (7) are fixedly installed on the front surface of the dripping speed regulating pipe (6).
2. The dropping funnel with adjustable dropping speed according to claim 1, characterized in that: The lower surface of the dripping speed regulating tube (6) is fixedly connected with a dripping tube (5).
3. The dropping funnel with adjustable dropping speed according to claim 1, characterized in that: The end of the output shaft of the micro motor (7) and the end of the rotating shaft (15) are fixedly connected.
4. The dropping funnel with adjustable dropping speed according to claim 1, characterized in that: The motor speed regulator (8) is electrically connected to the micro motor (7).
5. The dropping funnel with adjustable dropping speed according to claim 1, characterized in that: A rubber pad (11) is fixedly mounted on the outer surface of the funnel body (1) near the lower surface.
6. The dropping funnel with adjustable dropping speed according to claim 1, characterized in that: A second slide groove (19) is arranged on the side of the inner wall of the dripping speed regulating tube (6) away from the first slide groove (17), a second blocking plate (18) is slidably mounted inside the second slide groove (19), a nut (10) is fixedly mounted on the side of the outer surface of the dripping speed regulating tube (6) close to the second slide groove (19), a screw rod (9) is movably inserted inside the nut (10), and one end of the screw rod (9) located inside the dripping speed regulating tube (6) is rotatably connected to the outer side of the second blocking plate (18) via a connecting shaft (20).