A drop speed measuring device

Abstract

The application discloses a kind of liquid drop speed measuring devices, belongs to liquid drop speed measuring field.A kind of liquid drop speed measuring device, including dropper, fixed box being connected on dropper and pressure switch, the fixed box is equipped with position sensor, further including electric telescopic rod, fixedly connected in the top inner wall of fixed box, and the sensor is electrically connected with electric telescopic rod;Push rod, the output end of electric telescopic rod is provided;Pressing bar, rotationally connected on push rod;Pivot, rotationally connected in the inner wall of fixed box, and the outer wall of the pivot is equipped with knob, and the knob is equipped with ten fixed rods matched with pressing bar;Pressing plate, it is set on push rod, and it is matched with pressure switch;Support plate, fixedly connected in the inner wall of fixed box;The application not only can obtain the rotational speed of pivot, indirectly realizes liquid drop speed measuring, can directly record the speed of liquid drop in a certain time, is more convenient to use, reduces labor intensity, reduces the generation of error.

Description

Technical Field

[0001] This invention relates to the field of droplet rate measurement technology, and more particularly to a droplet rate measurement device. Background Technology

[0002] Intravenous infusion refers to the administration of large doses of injectable solutions into the body via intravenous drip, with a single dose exceeding 100 ml. It is a branch of injectable drugs and is usually packaged in glass or plastic infusion bottles or bags. It does not contain antibacterial agents and delivers medication into the body continuously and stably during use.

[0003] Currently, there are usually requirements for the drip rate during intravenous infusion. However, existing technologies can only roughly adjust the drip rate, but cannot directly observe the drip rate value during the infusion process. When an accurate drip rate value is needed, nurses need to take out their watches and count the drip rate against the Mofeet dropper on the leather strap each time, which is inefficient and has a large error. Therefore, we propose a drip rate measuring device to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a drip rate measuring device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A drip rate measuring device includes a dropper, a fixed box connected to the dropper, and a pressure switch. The fixed box contains a position sensor. The device also includes: An electric telescopic rod is fixedly connected to the top inner wall of the fixed box, and the sensor is electrically connected to the electric telescopic rod. A push rod is installed at the output end of the electric telescopic pole. The pressure rod is rotatably connected to the push rod; A rotating shaft is rotatably connected to the inner wall of a fixed box, and a rotating block is provided on the outer wall of the rotating shaft. Ten fixed rods that cooperate with the pressure rod are provided on the rotating block. The pressure plate is mounted on the push rod and works in conjunction with the pressure switch; A support plate is fixedly connected to the inner wall of the fixed box, and the pressure switch is fixedly connected to the top outer wall of the support plate; The inner wall of the fixed box is also equipped with a speed sensor and a limit assembly that cooperate with the rotating shaft.

[0006] Preferably, the outer wall of the fixed box is provided with a first display screen and a second display screen, which are respectively connected to the speed sensor and the pressure switch signal.

[0007] Furthermore, the push rod is provided with a groove, a connecting plate is fixedly connected in the groove, a connecting shaft is fixedly connected on the connecting plate, and the pressure rod is rotatably connected to the connecting shaft.

[0008] Furthermore, a torsion spring is sleeved on the connecting shaft, the torsion spring is disposed between the connecting plate and the pressure rod, the push rod has a circular hole, a limiting rod that is slidably connected in the circular hole is fixedly connected to the bottom inner wall of the fixed box, and an annular limiting block is fixedly connected to the outer wall of the push rod.

[0009] Furthermore, the limiting component includes an annular plate with an annular groove inside. A pawl is rotatably connected inside the annular groove. A circular block is provided at one end of the rotating shaft placed inside the annular groove. The outer wall of the circular block is provided with ratchet teeth that cooperate with the pawl. A support frame is provided inside the fixed box, and the rotating shaft is rotatably connected to the support frame.

[0010] Furthermore, a pin is provided in the annular groove, the pawl is rotatably connected to the pin, a baffle is fixedly connected in the annular groove, the baffle is provided with a long groove, a sliding rod is provided on the outer wall of the pawl, the sliding rod is slidably connected in the long groove, and a second spring is provided between the baffle and the pawl.

[0011] Preferably, a horizontal plate is fixedly connected to the outer wall of the push rod, a vertical rod is slidably connected to the horizontal plate, the pressure plate is fixedly connected to the bottom of the vertical rod, and a rubber pad is provided at the bottom of the pressure plate.

[0012] Furthermore, a first spring is sleeved on the vertical rod, the first spring being disposed between the bottom of the horizontal plate and the top of the pressure plate, and a stop block is provided at the top of the vertical rod.

[0013] Preferably, the outer walls on both sides of the fixed box are respectively provided with a fixing post and a locking block. A plastic soft strip is wound and connected to the fixing post. The plastic soft strip is provided with a first locking tooth. The locking block is provided with a slot through which the plastic soft strip can pass. A second locking tooth is slidably connected in the locking block. Both the first locking tooth and the second locking tooth are provided with mutually cooperating inclined surfaces.

[0014] Furthermore, the card block is also provided with a sliding groove and a recessed hole. A sliding plate is slidably connected in the sliding groove. The second card tooth is fixedly connected to the sliding plate. A third spring is provided between the sliding plate and the inner wall of the sliding groove. A pull rod is provided on the sliding plate. The end of the pull rod away from the sliding plate is placed in the recessed hole.

[0015] Compared with the prior art, the present invention provides a drip rate measuring device, which has the following beneficial effects: 1. This dripping speed measuring device activates an electric telescopic rod when the sensor detects a liquid dripping. This causes the pressure rod to push the fixed rod, which in turn rotates the shaft. There are ten fixed rods. Each time the electric telescopic rod is activated, it rotates the shaft one-tenth of a revolution. When the sensor detects another liquid dripping, it again causes the electric telescopic rod to rotate the shaft one-tenth of a revolution. Simultaneously, the speed sensor records the rotation speed of the shaft, thus determining the dripping speed and completing the dripping speed test. The results are easily viewed on the first display screen.

[0016] 2. In this drip rate measuring device, when the electric telescopic rod drives the push rod to move, it will cause the pressure plate to move, thereby squeezing the pressure switch. This allows the device to record the number of times the pressure switch is pressed per minute, thus providing a clear picture of the number of drops. The second display screen makes it easy to view the data.

[0017] 3. When using this drip rate measuring device, the plastic soft strip is directly inserted into the locking block. With the cooperation of the first and second locking teeth, the position of the fixing box can be fixed, which is convenient for installation and use.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention can not only determine the rotational speed of the shaft and indirectly realize the dripping speed measurement, but also directly record the speed of liquid dripping within a certain period of time. It is easier to use, reduces labor intensity, and reduces the generation of errors. Attached Figure Description

[0019] Figure 1 This is a front sectional view of a drip rate measuring device proposed in this invention. Figure 2 This is a schematic diagram of the structure of the fixed box in the drip rate measuring device proposed in this invention; Figure 3 This is a top sectional view of a drip rate measuring device proposed in this invention; Figure 4 This is a cross-sectional view of the annular plate in a drip rate measuring device proposed in this invention. Figure 5 This is a cross-sectional view of the card block in a drip rate measuring device proposed in this invention; Figure 6 This invention proposes a drip rate measuring device. Figure 2 Enlarged structural diagram of part A in the middle; Figure 7 This invention proposes a drip rate measuring device. Figure 4 Enlarged structural diagram of part B.

[0020] In the diagram: 1. Dropper; 2. Fixing box; 201. Sensor; 202. Electric telescopic rod; 203. First display screen; 204. Second display screen; 205. Limiting rod; 206. Support plate; 207. Pressure switch; 3. Push rod; 301. Annular limiting block; 302. Round hole; 303. Horizontal plate; 304. Pressure plate; 305. Rubber pad; 306. Vertical rod; 307. First spring; 308. Groove; 4. Connecting shaft; 401. Torsion spring; 402. Pressure rod; 403. Connecting plate; 5. Rotating shaft; 501. Rotating block 502. Fixed rod; 503. Support frame; 504. Round block; 505. Ratchet; 506. Speed ​​sensor; 6. Annular plate; 601. Annular groove; 602. Pin; 603. Pawl; 604. Slide rod; 605. Baffle; 606. Long groove; 607. Second spring; 7. Fixed post; 701. Locking block; 702. Plastic soft strip; 703. First locking tooth; 704. Slot; 705. Slide groove; 706. Concave hole; 707. Slide plate; 708. Second locking tooth; 709. Pull rod; 710. Third spring. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Example 1: Reference Figures 1-7A dripping speed measuring device includes a dropper 1, a fixed box 2 connected to the dropper 1, and a pressure switch 207. The fixed box 2 is equipped with a position sensor 201 and an electric telescopic rod 202 fixedly connected to the inner wall of the top of the fixed box 2. The sensor 201 is electrically connected to the electric telescopic rod 202. The output end of the electric telescopic rod 202 is connected to a push rod 3. A pressure rod 402 is rotatably connected to the push rod 3. A rotating shaft 5 is rotatably connected to the inner wall of the fixed box 2. A rotating block 501 is provided on the outer wall of the rotating shaft 5. Ten fixed rods 502 that cooperate with the pressure rod 402 are provided on the rotating block 501. A pressure plate 304 is also provided on the push rod 3. The pressure plate 304 cooperates with the pressure switch 207. A support plate 206 is fixedly connected to the inner wall of the fixed box 2. The pressure switch 207 is fixedly connected to the top outer wall of the support plate 206. The inner wall of the fixed box 2 is also equipped with a speed sensor 506 that cooperates with the rotating shaft 5 and a limiting component.

[0024] In this embodiment, before use, the fixing box 2 is first connected to the dropper 1. During use, when liquid drips from the dropper 1, the sensor 201 can detect the signal. The dropper 1 is transparent, making it easy for the sensor 201 to detect. When the sensor 201 detects liquid dripping, it will send a signal to activate the electric telescopic rod 202, which will drive the push rod 3 at the output end to move. When the push rod 3 moves, it will cause the pressure rod 402 to push the fixing rod 502 to move, thereby causing the rotating block 501 and the rotating shaft 5 to rotate. After the electric telescopic rod 202 moves to a certain position, it will automatically reset. During the reset, under the action of the limiting component, the pressure rod 402 will rotate and will not drive the fixing rod 502 to move. Therefore, it will not drive the rotating shaft 5 to rotate, thus preventing the rotating shaft 5 from reversing. The fixing rod 502 is provided with ten... When the electric telescopic rod 202 is working, it will cooperate with a fixed rod 502 each time, which can drive the rotating shaft 5 to rotate one-tenth of a turn. When the sensor 201 detects that the liquid is dripping again, it will make the electric telescopic rod 202 work again, thereby driving the rotating shaft 5 to rotate one-tenth of a turn again. At the same time, the speed sensor 506 will record the rotation speed of the rotating shaft 5, thereby determining the speed of the liquid dripping, thus completing the dripping speed test. When the electric telescopic rod 202 drives the push rod 3 to move, it will cause the pressure plate 304 to move, thereby causing the pressure plate 304 to squeeze the pressure switch 207. When the sensor 201 detects the liquid dripping again, the electric telescopic rod 202 will work again, pressing the pressure switch 207 again, thus recording the number of times the pressure switch 207 is pressed per minute, thereby intuitively determining the number of times the liquid drips. The outer wall of the fixed box 2 is equipped with a first display screen 203 and a second display screen 204. The first display screen 203 and the second display screen 204 are respectively connected to the speed sensor 506 and the pressure switch 207. When the speed sensor 506 records the rotation speed of the shaft 5, it will be displayed on the first display screen 203, thus showing the number of rotations of the shaft 5 per minute. When the pressure switch 207 is pressed, the number of times it has been pressed and the number of times the pressure switch 207 has been pressed per minute will be displayed on the second display screen 204. During use, medical staff can intuitively view the drip rate through the first display screen 203 and the second display screen 204, which is convenient for operation.

[0025] It should be noted that this device is not limited to use on the dropper 1, and the sensor 201, pressure switch 207, speed sensor 506 and electric telescopic rod 202 are all commercially available and are all existing technologies. They are all connected by wires, which will not be described in detail here. When the sensor 201 senses a signal, it will cause the electric telescopic rod 202 to complete a set of operations of extension and retraction, which is convenient to use.

[0026] Example 2 Reference Figures 1-3 and Figure 6 A dripping speed measuring device includes a dropper 1, a fixed box 2 connected to the dropper 1, and a pressure switch 207. The fixed box 2 is equipped with a position sensor 201 and an electric telescopic rod 202 fixedly connected to the inner wall of the top of the fixed box 2. The sensor 201 is electrically connected to the electric telescopic rod 202. The output end of the electric telescopic rod 202 is connected to a push rod 3. A pressure rod 402 is rotatably connected to the push rod 3. A rotating shaft 5 is rotatably connected to the inner wall of the fixed box 2. A rotating block 501 is provided on the outer wall of the rotating shaft 5. Ten fixed rods 502 that cooperate with the pressure rod 402 are provided on the rotating block 501. A pressure plate 304 is also provided on the push rod 3. The pressure plate 304 cooperates with the pressure switch 207. A support plate 206 is fixedly connected to the inner wall of the fixed box 2. The pressure switch 207 is fixedly connected to the top outer wall of the support plate 206. The inner wall of the fixed box 2 is also equipped with a speed sensor 506 that cooperates with the rotating shaft 5 and a limiting component.

[0027] The push rod 3 has a groove 308, a connecting plate 403 is fixedly connected in the groove 308, a connecting shaft 4 is fixedly connected on the connecting plate 403, and the pressure rod 402 is rotatably connected to the connecting shaft 4.

[0028] A torsion spring 401 is sleeved on the connecting shaft 4. The torsion spring 401 is located between the connecting plate 403 and the pressure rod 402. The push rod 3 has a round hole 302. A limiting rod 205 that is slidably connected in the round hole 302 is fixedly connected to the bottom inner wall of the fixed box 2. An annular limiting block 301 is fixedly connected to the outer wall of the push rod 3. When the push rod 3 slides again, the limiting rod 205 will slide in the round hole 302, so that the push rod 3 can slide more stably.

[0029] In this embodiment, when the push rod 3 moves downward, it drives the pressure rod 402 downward, causing the pressure rod 402 to abut against the fixed rod 502. This pushes the fixed rod 502 to move the rotating shaft 5. The speed sensor 506 records the rotation speed of the rotating shaft 5, thereby indirectly determining the speed at which the liquid falls from the dropper 1. When the push rod 3 resets, the pressure rod 402 abuts against the bottom of the fixed rod 502. At this time, under the action of the limiting component, the rotating shaft 5 will not reverse, thus preventing the fixed rod 502 from reversing. Therefore, the pressure rod 402 can rotate on the rotating shaft 5, making it easy for the push rod 3 to move upward. When the pressure rod 402 moves above the fixed rod 502, the torsion spring 401 will cause the pressure rod 402 to automatically reset. When the electric telescopic rod 202 works again, the push rod 3 can drive the fixed rod 502 to move again, allowing the rotating shaft 5 to move again.

[0030] Example 3: Reference Figures 1-7 A dripping speed measuring device includes a dropper 1, a fixed box 2 connected to the dropper 1, and a pressure switch 207. The fixed box 2 is equipped with a position sensor 201 and an electric telescopic rod 202 fixedly connected to the inner wall of the top of the fixed box 2. The sensor 201 is electrically connected to the electric telescopic rod 202. The output end of the electric telescopic rod 202 is connected to a push rod 3. A pressure rod 402 is rotatably connected to the push rod 3. A rotating shaft 5 is rotatably connected to the inner wall of the fixed box 2. A rotating block 501 is provided on the outer wall of the rotating shaft 5. Ten fixed rods 502 that cooperate with the pressure rod 402 are provided on the rotating block 501. A pressure plate 304 is also provided on the push rod 3. The pressure plate 304 cooperates with the pressure switch 207. A support plate 206 is fixedly connected to the inner wall of the fixed box 2. The pressure switch 207 is fixedly connected to the top outer wall of the support plate 206. The inner wall of the fixed box 2 is also equipped with a speed sensor 506 that cooperates with the rotating shaft 5 and a limiting component.

[0031] The push rod 3 has a groove 308, a connecting plate 403 is fixedly connected in the groove 308, a connecting shaft 4 is fixedly connected on the connecting plate 403, and the pressure rod 402 is rotatably connected to the connecting shaft 4.

[0032] A torsion spring 401 is sleeved on the connecting shaft 4. The torsion spring 401 is located between the connecting plate 403 and the pressure rod 402. The push rod 3 has a round hole 302. A limiting rod 205 that is slidably connected in the round hole 302 is fixedly connected to the bottom inner wall of the fixed box 2. An annular limiting block 301 is fixedly connected to the outer wall of the push rod 3.

[0033] The limiting assembly includes an annular plate 6, an annular groove 601 inside the annular plate 6, a pawl 603 rotatably connected inside the annular groove 601, a circular block 504 at one end of the rotating shaft 5 placed inside the annular groove 601, and a ratchet tooth 505 on the outer wall of the circular block 504 that cooperates with the ratchet tooth 603. A support frame 503 is provided inside the fixed box 2, and the rotating shaft 5 is rotatably connected to the support frame 503.

[0034] A pin 602 is provided in the annular groove 601, and a pawl 603 is rotatably connected to the pin 602. A baffle 605 is fixedly connected in the annular groove 601, and a long groove 606 is provided on the baffle 605. A sliding rod 604 is provided on the outer wall of the pawl 603, and the sliding rod 604 is slidably connected in the long groove 606. A second spring 607 is provided between the baffle 605 and the pawl 603.

[0035] In this embodiment, when the push rod 3 moves downward, it drives the pressure rod 402 downward, causing the pressure rod 402 to abut against the fixed rod 502. This pushes the fixed rod 502 to move the rotating shaft 5. The speed sensor 506 records the rotation speed of the rotating shaft 5, thereby indirectly determining the speed at which the liquid falls from the dropper 1. When the push rod 3 resets, the pressure rod 402 abuts against the bottom of the fixed rod 502. At this time, under the action of the limiting component, the rotating shaft 5 will not reverse, thus preventing the fixed rod 502 from reversing. Therefore, the pressure rod 402 can rotate on the rotating shaft 5, making it easy for the push rod 3 to move upward. When the pressure rod 402 moves above the fixed rod 502, the torsion spring 401 will cause the pressure rod 402 to automatically reset. When the electric telescopic rod 202 works again, the push rod 3 can drive the fixed rod 502 to move again, allowing the rotating shaft 5 to move again.

[0036] The limiting component does not interfere with the movement of the rotating shaft 5 when it rotates clockwise. However, when the rotating shaft 5 rotates counterclockwise, it will jam the rotating shaft 5, preventing it from moving. Specifically, when the rotating shaft 5 rotates clockwise, the circular block 504 drives the ratchet 505 to rotate. At this time, the inclined section on the ratchet 505 pushes the pawl 603 to rotate on the pin 602, thus allowing the rotating shaft 5 to rotate. Simultaneously, the rotation compresses the second spring 607. When the ratchet 505 stops pushing the pawl 603... When rotating, the compressed second spring 607 will automatically reset, thereby resetting the pawl 603. At this time, the pawl 603 will abut against the straight section of the ratchet 505, thereby positioning the ratchet 505 so that it will not drive the circular block 504 and the rotating shaft 5 to reverse. This prevents the pressure rod 402 from driving the fixed rod 502 to reverse when it rises, thus increasing the measurement accuracy. When the pawl 603 rotates again, the sliding rod 604 will move within the long groove 606, thereby limiting the pawl 603 and making its sliding more stable.

[0037] Example 4: Reference Figure 1 , Figure 2 and Figure 6 A drip rate measuring device is basically the same as in Embodiment 1, but further, a horizontal plate 303 is fixedly connected to the outer wall of the push rod 3, a vertical rod 306 is slidably connected to the horizontal plate 303, a pressure plate 304 is fixedly connected to the bottom of the vertical rod 306, and a rubber pad 305 is provided at the bottom of the pressure plate 304.

[0038] A first spring 307 is fitted on the vertical rod 306. The first spring 307 is located between the bottom of the horizontal plate 303 and the top of the pressure plate 304. A stop block is provided at the top of the vertical rod 306.

[0039] In this embodiment, when the push rod 3 moves downward, it first drives the horizontal plate 303 to move downward, and then drives the pressure plate 304 to move downward through the vertical rod 306, thereby causing the pressure plate 304 to press the pressure switch 207. A first spring 307 is provided between the pressure plate 304 and the horizontal plate 303, which can provide a certain buffer for the pressure plate 304, so that it will not exert too much pressure on the pressure switch 207 and avoid damaging the pressure switch 207. In addition, a rubber pad 305 is provided at the bottom of the pressure plate 304 to further protect the pressure switch 207 and prevent it from being damaged.

[0040] Example 5: Reference Figure 1 , Figure 3 and Figure 5A dripping speed measuring device includes a dropper 1, a fixed box 2 connected to the dropper 1, and a pressure switch 207. The fixed box 2 is equipped with a position sensor 201 and an electric telescopic rod 202 fixedly connected to the inner wall of the top of the fixed box 2. The sensor 201 is electrically connected to the electric telescopic rod 202. The output end of the electric telescopic rod 202 is connected to a push rod 3. A pressure rod 402 is rotatably connected to the push rod 3. A rotating shaft 5 is rotatably connected to the inner wall of the fixed box 2. A rotating block 501 is provided on the outer wall of the rotating shaft 5. Ten fixed rods 502 that cooperate with the pressure rod 402 are provided on the rotating block 501. A pressure plate 304 is also provided on the push rod 3. The pressure plate 304 cooperates with the pressure switch 207. A support plate 206 is fixedly connected to the inner wall of the fixed box 2. The pressure switch 207 is fixedly connected to the top outer wall of the support plate 206. The inner wall of the fixed box 2 is also equipped with a speed sensor 506 that cooperates with the rotating shaft 5 and a limiting component.

[0041] The two outer walls of the fixed box 2 are respectively provided with a fixed post 7 and a locking block 701. A plastic soft strip 702 is wound and connected on the fixed post 7. The plastic soft strip 702 is provided with a first locking tooth 703. The locking block 701 is provided with a slot 704 through which the plastic soft strip 702 can pass. A second locking tooth 708 is slidably connected in the locking block 701. Both the first locking tooth 703 and the second locking tooth 708 are provided with mutually cooperating inclined surfaces.

[0042] The locking block 701 is also provided with a sliding groove 705 and a recess 706. A sliding plate 707 is slidably connected in the sliding groove 705. A second locking tooth 708 is fixedly connected to the sliding plate 707. A third spring 710 is provided between the sliding plate 707 and the inner wall of the sliding groove 705. A pull rod 709 is provided on the sliding plate 707. The end of the pull rod 709 away from the sliding plate 707 is placed in the recess 706.

[0043] In this embodiment, during installation, the plastic soft band 702 is inserted around the dropper 1 into the slot 704 on the locking block 701. At this time, the first locking tooth 703 on the plastic soft band 702 will cooperate with the inclined surface on the second locking tooth 708, thereby causing the first locking tooth 703 to push the second locking tooth 708 to move the slide plate 707 within the slide groove 705. Then, the third spring 710 can reset the slide plate 707 and the second locking tooth 708, positioning the first locking tooth 703. Then, the first locking tooth 703 can extend through the slot 704. After the plastic soft band 702 fixes the dropper 1, the position of the plastic soft band 702 is fixed. At this time, the second locking tooth 708 and the first locking tooth... When the non-sloping surfaces of 703 abut against each other, i.e., their vertical surfaces abut against each other, the second locking tooth 708 will limit the first locking tooth 703. At this time, the plastic soft strap 702 can fix the fixing box 2 to the dropper 1, and the fixing box 2 is only fixed to one side of the dropper 1. The other side of the dropper 1 is still transparent, which makes it easy to observe the liquid dripping in the dropper 1. When it is necessary to disassemble the fixing box 2, pull the lever 709 to move the slide plate 707, so that the slide plate 707 moves the second locking tooth 708 so that it no longer abuts against the first locking tooth 703. At this time, the plastic soft strap 702 can be pulled out, thereby separating the fixing box 2 from the dropper 1.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drip rate measuring device, comprising a dropper (1), a fixing box (2) connected to the dropper (1), and a pressure switch (207), wherein a position sensor (201) is provided inside the fixing box (2), characterized in that, Also includes: The electric telescopic rod (202) is fixedly connected to the top inner wall of the fixed box (2), and the sensor (201) is electrically connected to the electric telescopic rod (202); A push rod (3) is installed at the output end of the electric telescopic rod (202); The pressure rod (402) is rotatably connected to the push rod (3); A rotating shaft (5) is rotatably connected to the inner wall of a fixed box (2), and a rotating block (501) is provided on the outer wall of the rotating shaft (5). Ten fixed rods (502) that cooperate with the pressure rod (402) are provided on the rotating block (501). The pressure plate (304) is mounted on the push rod (3) and cooperates with the pressure switch (207); The support plate (206) is fixedly connected to the inner wall of the fixed box (2), and the pressure switch (207) is fixedly connected to the top outer wall of the support plate (206); The inner wall of the fixed box (2) is also provided with a speed sensor (506) that cooperates with the rotating shaft (5); The inner wall of the fixed box (2) is also provided with a limiting component, which includes an annular plate (6), an annular groove (601) is provided in the annular plate (6), a pawl (603) is rotatably connected in the annular groove (601), a circular block (504) is provided at one end of the rotating shaft (5) placed in the annular groove (601), and a ratchet tooth (505) is provided on the outer wall of the circular block (504) to cooperate with the ratchet tooth (603). The fixed box (2) is provided with a support frame (503), and the rotating shaft (5) is rotatably connected to the support frame (603). It is attached to the support frame (503); a pin (602) is provided in the annular groove (601), and a pawl (603) is rotatably connected to the pin (602). A baffle (605) is fixedly connected in the annular groove (601), and a long groove (606) is provided on the baffle (605). A sliding rod (604) is provided on the outer wall of the pawl (603), and the sliding rod (604) is slidably connected in the long groove (606). A second spring (607) is provided between the baffle (605) and the pawl (603). The pawl (603) and the ratchet (505) form a one-way anti-rotation structure: when the shaft (5) is driven to rotate in the forward direction by the pressure rod (402), the ratchet (505) pushes open the pawl (603) and rotates smoothly. When the push rod (3) drives the pressure rod (402) to move upward and reset, the pawl (603) clamps the ratchet (505) and locks the shaft (5), restricting the shaft (5) from reversing.

2. The drip rate measuring device according to claim 1, characterized in that, The outer wall of the fixed box (2) is provided with a first display screen (203) and a second display screen (204), and the first display screen (203) and the second display screen (204) are respectively connected to the speed sensor (506) and the pressure switch (207).

3. The drip rate measuring device according to claim 2, characterized in that, The push rod (3) is provided with a groove (308), a connecting plate (403) is fixedly connected in the groove (308), a connecting shaft (4) is fixedly connected on the connecting plate (403), and the pressure rod (402) is rotatably connected to the connecting shaft (4).

4. The drip rate measuring device according to claim 3, characterized in that, A torsion spring (401) is sleeved on the connecting shaft (4). The torsion spring (401) is located between the connecting plate (403) and the pressure rod (402). A circular hole (302) is provided inside the push rod (3). A limiting rod (205) that is slidably connected in the circular hole (302) is fixedly connected to the bottom inner wall of the fixed box (2). An annular limiting block (301) is fixedly connected to the outer wall of the push rod (3).

5. A drip rate measuring device according to claim 2, characterized in that, A horizontal plate (303) is fixedly connected to the outer wall of the push rod (3), and a vertical rod (306) is slidably connected to the horizontal plate (303). The pressure plate (304) is fixedly connected to the bottom of the vertical rod (306), and a rubber pad (305) is provided at the bottom of the pressure plate (304).

6. The drip rate measuring device according to claim 5, characterized in that, A first spring (307) is sleeved on the vertical rod (306), and the first spring (307) is located between the bottom of the horizontal plate (303) and the top of the pressure plate (304). A stop block is provided at the top of the vertical rod (306).

7. The drip rate measuring device according to claim 1, characterized in that, The two outer walls of the fixed box (2) are respectively provided with a fixed post (7) and a locking block (701). A plastic soft strip (702) is wound and connected on the fixed post (7). A first locking tooth (703) is provided on the plastic soft strip (702). A slot (704) is provided in the locking block (701) for the plastic soft strip (702) to pass through. A second locking tooth (708) is slidably connected in the locking block (701). Both the first locking tooth (703) and the second locking tooth (708) are provided with mutually cooperating inclined surfaces.

8. A drip rate measuring device according to claim 7, characterized in that, The locking block (701) is also provided with a sliding groove (705) and a recess (706). A sliding plate (707) is slidably connected in the sliding groove (705). The second locking tooth (708) is fixedly connected to the sliding plate (707). A third spring (710) is provided between the sliding plate (707) and the inner wall of the sliding groove (705). A pull rod (709) is provided on the sliding plate (707). The end of the pull rod (709) away from the sliding plate (707) is placed in the recess (706).

Images