Liquid bag hanging rod and method for regulating and controlling flow rate of irrigation liquid using liquid bag hanging rod

Abstract

Disclosed are a liquid bag hanging rod and a method for regulating and controlling a flow rate of an irrigation liquid using the liquid bag hanging rod, relating to the technical field of medical devices. The liquid bag hanging rod comprises a supporting mechanism, a lifting mechanism, a distance sensor, and a main controller. The supporting mechanism comprises a supporting rod, a fixed base, and a hanging frame, wherein the lifting mechanism is in transmission connection with the supporting rod so as to drive lifting of the supporting rod, the fixed base is fixed to the supporting rod so as to ascend or descend synchronously with the supporting rod, and the hanging frame and the distance sensor are respectively arranged on the fixed base. The distance sensor detects the current height information of the fixed base and sends the current height information to the main controller, and the main controller is configured for controlling the lifting state of the lifting mechanism so as to adjust the real-time flow rate of the irrigation liquid. By means of the present invention, the flow rate of the irrigation liquid can be quickly and accurately regulated and controlled .

Description

Method for controlling the flow rate of the drip irrigation rod and its flushing fluid. Technical Field

[0001] This invention relates to the field of medical equipment technology, and in particular to an IV drip pole and a method for controlling the flow rate of the flushing fluid in the IV drip pole. Background Technology

[0002] During certain surgical procedures, waste of various types, including liquids, semi-solids, and solids, is inevitably generated. This includes bodily fluids such as blood, as well as irrigation solutions introduced into the surgical site. Solid and semi-solid waste generated during surgery includes tissue fragments and small pieces of surgical material that may remain at the site of the procedure. Ideally, waste should be collected as soon as it is generated, thus preventing contamination of the surgical site and avoiding becoming a biohazard in the operating room or other surgical locations.

[0003] In the existing technology, there are various waste collection systems that allow medical staff to collect waste generated during or after surgery. These systems can also be equipped with IV poles to hold irrigation fluid for rinsing wounds. During surgery, the most important aspect of this irrigation fluid management is the control of its flow rate.

[0004] However, existing IV poles have a simple structure. Although some offer manual height adjustment via buttons, this method is not flexible enough in practice and cannot quantify the flow rate / volume of the irrigation fluid. Furthermore, during surgery, medical staff may need to frequently adjust the height of the IV pole manually to accommodate different surgical sites or changes in patient position, which is not only time-consuming and laborious but may also affect the irrigation effect due to insufficient adjustment precision. In addition, in emergency situations, quick and accurate adjustment of the IV pole height is crucial, and existing adjustment methods clearly cannot meet this requirement.

[0005] Therefore, developing a drip irrigation rod and a method for controlling the flow rate of the irrigation fluid in the drip irrigation rod to precisely coordinate with surgery has become an urgent problem to be solved.

[0006] Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a liquid-holding rod and a method for regulating the flow rate of the flushing liquid, which can quickly and accurately regulate the flow rate of the flushing liquid.

[0008] To address the aforementioned technical problems, this invention provides a liquid-holding rod, comprising a support mechanism, a lifting mechanism, a distance sensor, and a main controller. The support mechanism includes a support rod, a fixed base, and a hanger. The lifting mechanism is tractively connected to the support rod to drive the lifting and lowering of the support rod. The fixed base is fixed to the support rod to lift and lower synchronously with the support rod. The hanger and the distance sensor are respectively mounted on the fixed base. The distance sensor detects the current height information of the fixed base and sends the current height information to the main controller. The main controller is used to control the lifting and lowering state of the lifting mechanism to adjust the real-time flow rate of the flushing fluid.

[0009] As an improvement to the above solution, the main controller includes a first height control module and / or a second height control module; the first height control module is used to acquire the pipe diameter information and the target flow rate information of the flushing fluid, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information, and control the lifting mechanism to drive the support rod to lift and lower according to the target height information, so that the fixed seat moves to the target position; the second height control module is used to acquire the pipe diameter information and the target flow rate information of the flushing fluid, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information, and control the lifting mechanism to drive the support rod to lift and lower according to the target height information, so that the fixed seat moves to the target position.

[0010] As an improvement to the above solution, the main controller includes a flow control module. The flow control module is used to acquire the pipe diameter information, the target height information and the current height information of the fixed seat, calculate the current flow information of the flushing fluid based on the pipe diameter information and the current height information, control the lifting mechanism to drive the support rod to lift and lower based on the target height information so that the fixed seat moves to the target position, and determine the real-time flow of the flushing fluid based on the current flow information.

[0011] As an improvement to the above solution, the support rod is provided with a through-groove, the signal line of the distance sensor is located in the through-groove, one end of the signal line extends out of the through-groove and connects to the distance sensor, and the other end extends out of the through-groove and connects to the main controller.

[0012] As an improvement to the above solution, the support rod is also equipped with a tank chain, and the other end of the signal line extends out of the cable groove and passes through the tank chain to connect with the main controller.

[0013] As an improvement to the above solution, a liquid storage mechanism is also included, which includes a liquid bag for storing rinsing liquid and a liquid pipe communicating with the liquid bag, and the liquid bag is hung on the bracket.

[0014] Accordingly, the present invention also provides a method for regulating the flushing fluid flow rate of a liquid-holding rod, comprising: acquiring the pipe diameter information and the target flow rate / target velocity information of the flushing fluid; calculating the target height information of the fixed seat based on the pipe diameter information and the target flow rate / target velocity information; and controlling the lifting mechanism to drive the lifting of the support rod according to the target height information, so that the fixed seat moves to the target position.

[0015] As an improvement to the above solution, the step of calculating the target height information of the fixed seat based on the pipe diameter information and the target flow rate information includes: using the formula A = πR 2 Calculate the cross-sectional area of ​​the pipe, where A is the cross-sectional area of ​​the pipe and R is the pipe diameter; according to the formula H = Q 2 / [2g(ρA) 2 ] Calculate the target height information of the fixed seat, where H is the target height information, Q is the target flow rate information, g is the gravitational acceleration, and ρ is the flushing fluid density.

[0016] As an improvement to the above solution, the step of calculating the target height information of the fixed seat based on the pipe diameter information and the target flow velocity information includes: using the formula A = πR 2 Calculate the pipe cross-sectional area, where A is the pipe cross-sectional area and R is the pipe diameter; calculate the flow rate using the formula Q = ρvA, where Q is the target flow rate, ρ is the flushing fluid density, and v is the target flow velocity; calculate the flow rate using the formula H = Q 2 / [2g(ρA) 2 ] Calculate the target height information of the fixed seat, where H is the target height information and g is the gravitational acceleration.

[0017] As an improvement to the above solution, the flushing fluid flow control method of the hanging rod further includes: acquiring the pipe diameter information, the target height information and the current height information of the fixed seat; calculating the current flow information of the flushing fluid based on the pipe diameter information and the current height information; controlling the lifting mechanism to drive the lifting of the support rod according to the target height information so that the fixed seat moves to the target position, and determining the real-time flow of the flushing fluid based on the current flow information.

[0018] As an improvement to the above solution, the step of calculating the current flow rate of the flushing fluid based on the pipe diameter information and the current height information includes: using the formula A = πR 2 Calculate the cross-sectional area of ​​the pipe, where A is the cross-sectional area of ​​the pipe and R is the pipe diameter; according to the formula... Calculate the current flow velocity information, where v' is the current flow velocity, g is the gravitational acceleration, and h is the current height information; calculate the current flow rate information according to the formula Q'=ρv'A, where Q' is the current flow rate information and ρ is the flushing fluid density.

[0019] Implementing this invention has the following beneficial effects:

[0020] This invention combines a distance sensor, a main controller, and a lifting mechanism. The main controller can automatically calculate the target height of the fixed seat (i.e., the liquid bag) according to the user's flow rate / flow velocity requirements, and detect the current height information of the fixed seat through the distance sensor to control the lifting state of the lifting mechanism, thereby adjusting the real-time flow rate / flow velocity of the flushing fluid. This eliminates the need for the user to manually adjust the height of the liquid bag, making operation convenient and enabling rapid and precise control of the flushing fluid flow rate / flow velocity.

[0021] In addition, the present invention can automatically calculate the current flow rate of the flushing fluid according to the user's height requirements, making it easy for the user to accurately control the current flow rate corresponding to the current height, and is highly flexible. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the structure of the first embodiment of the liquid-carrying rod of the present invention;

[0023] Figure 2 is a schematic diagram of the first embodiment of the main controller in the liquid hanging rod of the present invention;

[0024] Figure 3 is a schematic diagram of the second embodiment of the main controller in the liquid hanging rod of the present invention;

[0025] Figure 4 is a schematic diagram of an embodiment of the support rod in the liquid-holding rod of the present invention;

[0026] Figure 5 is a schematic diagram of the second embodiment of the liquid-carrying rod of the present invention;

[0027] Figure 6 is a schematic diagram of the third embodiment of the liquid-carrying rod of the present invention;

[0028] Figure 7 is a cross-sectional view of the tube support in the liquid hanging rod of the present invention;

[0029] Figure 8 is a flowchart of the first embodiment of the flushing fluid flow control method of the liquid hanging rod of the present invention;

[0030] Figure 9 is a flowchart of the second embodiment of the flushing fluid flow control method of the present invention.

[0031] Figure 10 is a flowchart of the third embodiment of the flushing fluid flow control method of the present invention.

[0032] Figure 11 is a flowchart of the fourth embodiment of the flushing fluid flow control method of the present invention;

[0033] Figure 12 is a schematic diagram of the user menu interface in this invention. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0035] Referring to Figure 1, which shows a first embodiment of the liquid-holding rod of the present invention, it includes a support mechanism, a lifting mechanism 2, a distance sensor 3, a liquid storage mechanism, and a main controller 5 (see Figure 2). Specifically:

[0036] The support mechanism includes a support rod 11, a fixed base 12, and a hanger 13. The lifting mechanism 2 is connected to the support rod 11 to drive the support rod 11 to rise and fall. The fixed base 12 is fixed to the upper part of the support rod 11 to rise and fall synchronously with the support rod 11. The hanger 13 and the distance sensor 3 are respectively mounted on the fixed base 12. That is, when the lifting mechanism 2 drives the support rod 11 to rise and fall, it can drive the distance sensor 3 to move together, thereby ensuring the accuracy of the detection. The hanger 13 passes through the fixed base 12, and the distance sensor 3 is located on the bottom side of the fixed base 12.

[0037] The liquid storage mechanism includes a liquid bag 41 for storing rinsing liquid and a liquid pipe 42 connected to the liquid bag 41. The liquid bag 41 is hung on the hanger 13. The rinsing liquid in the liquid bag 41 is sprayed out from the nozzle through the liquid pipe 42, which can achieve the rinsing effect.

[0038] The distance sensor 3 detects the current height information of the fixed base 12 at intervals / in real time and sends the current height information to the main controller 5. The main controller 5 is used to control the lifting status of the lifting mechanism 2 to adjust the real-time flow of the flushing fluid.

[0039] It should be noted that the potential energy of the liquid bag 41 can be converted into the kinetic energy of the flushing fluid. Therefore, the height of the liquid bag 41 determines the flow rate / velocity of the flushing fluid ejected from the nozzle. The higher the height of the liquid bag 41, the greater the kinetic energy gained by the flushing fluid, thus resulting in a higher flow rate / velocity. Therefore, this invention introduces a lifting mechanism 2. The main controller 5 can control the lifting mechanism 2 to automatically adjust the height of the liquid bag 41 according to the required flow rate / velocity information, thereby achieving rapid and precise control of the flushing fluid flow rate / velocity.

[0040] Specifically, the movable end of the lifting mechanism 2 is connected to the support rod 11 via a transmission connection, and the lifting mechanism 2 is used to drive the support rod 11 to rise and fall. During use, when it is necessary to adjust the height of the fluid bag to regulate the flow rate of the irrigation fluid, the lifting mechanism 2 can be used to drive the support rod 11 to rise and fall, thereby raising and lowering the fluid bag 41 on the hanger 13, thus adjusting the height of the fluid bag. This adjustment structure is faster and more precise, effectively improving surgical efficiency. The distance sensor 3 can detect the current height information of the fixation seat 12, allowing the main controller 5 to control the lifting mechanism 2 to move the fixation seat 12 to the target position.

[0041] Referring to Figure 2, which shows a first embodiment of the main controller 5, it includes a first height control module 51 and a second height control module 52. The first height control module 51 and the second height control module 52 will be described in detail below:

[0042] I. First Height Control Module 51

[0043] The first height control module 51 is used to acquire the pipe diameter information of the liquid pipe 42 and the target flow rate information of the flushing liquid, calculate the target height information of the fixed seat 12 based on the pipe diameter information and the target flow rate information, and control the lifting mechanism 2 to drive the support rod 11 to lift and lower based on the target height information, so that the fixed seat 12 moves to the target position.

[0044] During operation, the user can select the current pipe diameter information and the required target flow rate information of the liquid pipe 42 through the user menu (see Figure 12), or manually input the current pipe diameter information and the required target flow rate information of the liquid pipe 42; after the first height control module 51 obtains the pipe diameter information and the target flow rate information of the flushing fluid of the liquid pipe 42, it calculates the target height information H of the fixed seat 12 according to the following formula:

[0045] A = πR 2

[0046] H = Q 2 / [2g(ρA) 2 ]

[0047] Where A is the pipe cross-sectional area, R is the pipe diameter, Q is the target flow rate, g is the gravitational acceleration, and ρ is the flushing fluid density;

[0048] Finally, the first height control module 51 controls the lifting mechanism 2 to drive the support rod 11 to rise and fall according to the target height information, so that the fixed seat 12 moves to the target position.

[0049] Therefore, once the pipe diameter and target flow rate information are set, the first height control module 51 can control the lifting mechanism 2 to drive the support rod 11 to rise and fall according to the calculated target height information, so that the fixed seat 12 moves to the target position. During the movement, the distance sensor 3 collects the current height information of the fixed seat 12 in real time to ensure that the fixed seat 12 can move accurately to the target position. In other words, once the pipe diameter and target flow rate information are set, the fixed seat 12 can automatically rise to the target position to achieve flow rate regulation.

[0050] II. Second Height Control Module 52

[0051] The second height control module 52 is used to acquire the pipe diameter information of the liquid pipe 42 and the target flow rate information of the flushing liquid, calculate the target height information of the fixed seat 12 based on the pipe diameter information and the target flow rate information, and control the lifting mechanism 2 to drive the support rod 11 to lift and lower based on the target height information, so that the fixed seat 12 moves to the target position.

[0052] During operation, the user can select the current pipe diameter information and the required target flow rate information of the liquid pipe 42 through the user menu, or manually input the current pipe diameter information and the required target flow rate information of the liquid pipe 42; after the second height control module 52 obtains the pipe diameter information and the target flow rate information of the flushing fluid of the liquid pipe 42, it calculates the target height information H of the fixed seat 12 according to the following formula:

[0053] A = πR 2

[0054] Q = ρvA

[0055] H = Q 2 / [2g(ρA) 2 ]

[0056] Where A is the pipe cross-sectional area, R is the pipe diameter, Q is the target flow rate, ρ is the flushing fluid density, v is the target flow velocity, and g is the gravitational acceleration.

[0057] Finally, the second height control module 52 controls the lifting mechanism 2 to drive the support rod 11 to rise and fall according to the target height information, so that the fixed seat 12 moves to the target position.

[0058] Therefore, once the pipe diameter and target flow rate information are set, the main controller 5 can calculate the target height information of the fixed seat 12 and control the lifting mechanism 2 to drive the support rod 11 to rise and fall, so that the fixed seat 12 can automatically rise to the target position and achieve flow regulation.

[0059] Referring to Figure 3, which shows a second embodiment of the main controller 5, the main controller 5 further includes a flow control module 53 in this embodiment, which is different from the first embodiment shown in Figure 2. The flow control module 53 is used to acquire the pipe diameter information of the liquid pipe 42, the target height information and the current height information of the fixed seat 12, calculate the current flow information of the flushing fluid based on the pipe diameter information and the current height information, control the lifting mechanism 2 to drive the support rod 11 to lift and lower based on the target height information so that the fixed seat 12 moves to the target position, and determine the real-time flow of the flushing fluid based on the current flow information.

[0060] During operation, the distance sensor 3 collects the current height information of the mounting base 12 in real time. Simultaneously, the user can select the current pipe diameter information of the liquid pipe 42 and the target height information of the mounting base 12 through the user menu, or manually input the current pipe diameter information of the liquid pipe 42 and the target height information of the mounting base 12. After obtaining the pipe diameter information of the liquid pipe 42, the target height information of the mounting base 12, and the current height information, the flow control module 53 calculates the current flow information Q' according to the following formula:

[0061] A = πR 2

[0062] Q'=ρv'A

[0063] Where A is the cross-sectional area of ​​the pipe, R is the pipe diameter, v' is the current flow velocity, g is the gravitational acceleration, h is the current height, and ρ is the flushing fluid density;

[0064] Finally, the flow control module 53 controls the lifting mechanism 2 to drive the support rod 11 to rise and fall according to the target height information, so that the fixed seat 12 moves to the target position. At the same time, the user can determine the real-time flow rate of the flushing fluid.

[0065] Therefore, by using the pipe diameter information and the current height information, the current flow rate of the flushing fluid can be determined in real time, and the flow rate of the flushing fluid changes slowly during the process of the fixed seat 12 automatically rising to the target position, without any sudden changes in flow rate.

[0066] As shown in Figure 4, the support rod 11 is provided with a wire groove 14 that passes through the support rod 11. The signal line 31 of the distance sensor 3 is located in the wire groove 14, and one end of the signal line 31 extends out of the wire groove 14 and is connected to the distance sensor 3, while the other end extends out of the wire groove 14 and is connected to the main controller 5.

[0067] Since the distance sensor 3 moves up and down with the support rod 11, to prevent the signal wire 31 from being pulled or tangled during movement, which could affect the detection quality or even the operation, this invention provides a wire guide groove 14 inside the support rod 11. The signal wire 31 is housed in the wire guide groove 14, which not only straightens the signal wire 31 but also guides it, preventing it from being pulled or tangled during movement.

[0068] Preferably, the signal line 31 can be a retractable spring line, which allows the signal line 31 to retract as the support rod 11 rises and falls, further preventing the signal line 31 from being pulled or tangled during movement.

[0069] Referring to Figure 5, which shows a second embodiment of the liquid-holding rod of the present invention, unlike the first embodiment shown in Figure 1, this embodiment also includes a tank chain 15 on the support rod 11. The other end of the signal line 31 extends out of the cable groove 14 and passes through the tank chain 15 to connect with the main controller 5. Therefore, by storing the signal line 31 in the tank chain 15, the signal line 31 can be flexibly raised and lowered with the support rod 11.

[0070] Furthermore, the support mechanism also includes a base 16 and a limiting seat 17. The base 16 is located at the bottom of the support rod 11, and the lifting drive component is located inside the base 16. The base 16 is used to connect with the waste collection system. The limiting seat 17 is sleeved on the lower part of the support rod 11. The side of the limiting seat 17 is connected to the external tank chain 15. The support rod 11 is located inside the limiting seat 17. The limiting seat 17 can fix the support rod 11 so that the support rod 11 remains connected to the lifting drive component.

[0071] Referring to Figure 6, which shows a third embodiment of the liquid hanging rod of the present invention, this embodiment, unlike the first embodiment shown in Figure 1, also includes a weight sensor 6 connected to the hanging bracket 13, which is used to detect the weight of the liquid bag 41.

[0072] Accordingly, to ensure the accuracy of weight detection, a tube-wrapping bracket 18 is provided on the side wall of the support rod 11. The tube-wrapping bracket 18 is detachably fixed to the side wall of the support rod 11, and the liquid tube 42 is wound around the tube-wrapping bracket 18. The liquid tube 42 is relatively long. When the liquid bag 41 shakes, the shaking amplitude of the lower part of the liquid tube 42 will increase with the increase of its length. At the same time, the weight of the liquid tube 42 will also be detected by the weight sensor. In order to avoid the shaking of the liquid tube 42 from affecting the detection, and to concentrate the weight detected by the weight sensor as much as possible in the liquid bag 41, the liquid tube 42 is fixed to the tube-wrapping bracket 18. In this way, when the support rod 11 moves the liquid bag 41 up and down, the liquid tube 42 will not shake. At the same time, the tube-wrapping bracket 18 supports most of the weight of the liquid tube 42, so that the weighing sensor can accurately display the weight of the liquid bag 41.

[0073] As shown in Figure 7, to straighten the liquid tube 42, effectively fix it, and facilitate disassembly, a support plate 19 is provided on the tube winding bracket 18. The support plate 19 protrudes from the side of the tube winding bracket 18 and has a concave winding groove 191 on it. The liquid tube 42 is wound around the winding groove 191. A first clamping plate 192 and a second clamping plate 193 are respectively provided on both sides of the tube winding bracket 18. The first clamping plate 192 and the second clamping plate 193 are located below the support plate 19 and extend towards each other. On the one hand, the first clamping plate 192 and the second clamping plate 193 can limit the space below the support plate 19, preventing the liquid tube 42 wound in the winding groove 191 from loosening. On the other hand, a first clamping space 194 is formed between the first clamping plate 192 and the side wall of the support rod 11, and the second clamping plate 193 and the support rod... A second clamping space 195 is formed between the side walls of 11. After the liquid tube 42 passes through the first clamping space 194 and / or the second clamping space 195, it is wound in the winding groove 191. In use, the liquid tube 42 can first pass through the first clamping space 194 or the second clamping space 195 and be wound in the winding groove 191, and then pass through the second clamping space 195 or the first clamping space 194 to be led out. The first clamping space 194 and the second clamping space 195 can limit the two ends of the liquid tube 42, and while straightening the liquid tube 42, further prevent the liquid tube 42 from loosening.

[0074] The tube support 18 is sleeved on the outside of the support rod 11. In this embodiment of the invention, the tube support 18 is sleeved in a semi-enclosed manner. The tube support 18 has a notch on one side and has a certain deformation capability. The notch can be enlarged by deformation so that it can be sleeved into the support rod 11 from the side. The notch sleeve method can make the installation and removal convenient. The tube support 18 is provided with a fixing hole. The tube support 18 is detachably fixed to the support rod 11 through the fixing hole. The tube support 18 can be stably fixed to the support rod 11 by using screws or other fasteners.

[0075] Furthermore, flow control is crucial for the application of irrigation fluid during surgery. However, existing IV stands only allow manual height setting and cannot quantify flow rate. Therefore, this invention achieves flexible flow control by incorporating a distance sensor on the IV pole, thereby quantifying the flow rate based on height. The invention will be further described in detail below with reference to specific embodiments.

[0076] Referring to Figure 8, Figure 8 shows a flowchart of a first embodiment of the flushing fluid flow control method of the present invention, including:

[0077] S101, Obtain the pipe diameter information of the liquid pipe and the target flow rate information of the flushing liquid;

[0078] Since the model of the liquid pipe is fixed, the user can select the pipe diameter information of the current liquid pipe through the user menu, or manually enter the pipe diameter information of the current liquid pipe; similarly, the user can select the required target flow rate information through the user menu or manually enter the required target flow rate information (see Figure 12).

[0079] S102, Calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information;

[0080] Specifically, the steps for calculating the target height information of the fixed seat based on the pipe diameter information and the target flow rate information include:

[0081] (1) Calculate the cross-sectional area A of the pipe according to the following formula:

[0082] A = πR 2

[0083] Where R represents the pipe diameter information;

[0084] (2) Calculate the target height information H of the fixed seat according to the following formula:

[0085] H = Q 2 / [2g(ρA) 2 ]

[0086] in:

[0087] Q represents the target traffic information;

[0088] g is the acceleration due to gravity;

[0089] ρ represents the density of the flushing solution; it should be noted that most flushing solutions are physiological saline, and their density values ​​fluctuate within a very small range.

[0090] S103 controls the lifting mechanism to drive the support rod to rise and fall according to the target height information, so that the fixed seat moves to the target position.

[0091] Therefore, once the pipe diameter and target flow rate information are set, the main controller 5 can control the lifting mechanism to drive the support rod to rise and fall according to the calculated target height information, so that the fixed seat moves to the target position. During the movement, the distance sensor collects the current height information of the fixed seat in real time to ensure that the fixed seat can move accurately to the target position. In other words, once the pipe diameter and target flow rate information are set, the fixed seat can automatically rise to the target position to achieve flow regulation.

[0092] Referring to Figure 9, Figure 9 shows a flowchart of a second embodiment of the flushing fluid flow control method of the present invention, including:

[0093] S201, Obtain the pipe diameter information of the liquid pipe and the target flow rate information of the flushing liquid;

[0094] S202, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow velocity information;

[0095] Unlike the first embodiment shown in Figure 8, this embodiment uses the target flow rate information of the flushing fluid instead of the target flow rate information to calculate the target height information.

[0096] Specifically, the steps for calculating the target height information of the fixed seat based on the pipe diameter information and the target flow velocity information include:

[0097] (1) Calculate the cross-sectional area A of the pipe according to the following formula:

[0098] A = πR 2

[0099] Where R represents the pipe diameter information;

[0100] (2) Calculate the target flow information Q according to the following formula:

[0101] Q = ρvA

[0102] Where ρ is the flushing fluid density and v is the target flow velocity information;

[0103] (3) Calculate the target height information H of the fixed seat according to the following formula:

[0104] H = Q 2 / [2g(ρA) 2 ]

[0105] Where g is the acceleration due to gravity.

[0106] S203, based on the target height information, controls the lifting mechanism to drive the support rod to rise and fall, so that the fixed seat moves to the target position.

[0107] Therefore, once the pipe diameter and target flow rate are set, the fixed seat can automatically rise to the target position to achieve flow regulation.

[0108] Referring to Figure 10, Figure 10 shows a flowchart of a third embodiment of the flushing fluid flow control method of the present invention, including:

[0109] S301, Obtain the pipe diameter information, target height information and current height information of the fixing seat;

[0110] S302, calculate the current flow rate of the flushing fluid based on the pipe diameter and current height information;

[0111] Specifically, the steps for calculating the current flow rate of the flushing fluid based on the pipe diameter and current height information include:

[0112] (1) Calculate the cross-sectional area A of the pipe according to the following formula:

[0113] A = πR 2

[0114] Where R represents the pipe diameter information;

[0115] (2) Calculate the current flow velocity information v' according to the following formula:

[0116] Where g is the acceleration due to gravity, and h is the current altitude information;

[0117] (3) Calculate the current flow information Q' according to the following formula:

[0118] Q'=ρv'A

[0119] Where ρ is the density of the flushing fluid.

[0120] S303 controls the lifting mechanism to drive the support rod to rise and fall according to the target height information, so that the fixed seat moves to the target position, and determines the real-time flow rate of the flushing fluid according to the current flow information.

[0121] Unlike the first embodiment shown in Figure 8, this embodiment can determine the flow rate of the flushing fluid in real time through the pipe diameter information and the current height information, and ensure that the flow rate of the flushing fluid changes slowly during the process of the fixed seat automatically rising to the target position, without sudden changes in flow rate.

[0122] Referring to Figure 11, Figure 11 shows a flowchart of the fourth embodiment of the flushing fluid flow control method of the present invention, including:

[0123] S401, Obtain the pipe diameter information of the liquid pipe and the target flow rate / target velocity information of the flushing fluid;

[0124] S402, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information / target flow velocity information;

[0125] For specific calculation methods, please refer to Example 1 and Example 2, which will not be described again here.

[0126] S403, based on the target height information, controls the lifting mechanism to drive the support rod to lift and lower, so that the fixed seat moves to the target position;

[0127] S404, obtain the pipe diameter information of the liquid pipe, the target height information of the fixed seat, and the current height information;

[0128] S405, calculate the current flow rate of the flushing fluid based on the pipe diameter and current height information;

[0129] For the specific calculation method, please refer to Example 3, which will not be described again here.

[0130] S406 controls the lifting mechanism to drive the support rod to rise and fall according to the target height information, so that the fixed seat moves to the target position, and determines the real-time flow rate of the flushing fluid according to the current flow information.

[0131] Unlike the first embodiment shown in Figure 8, this embodiment can calculate the target height information using either the target flow rate information or the target velocity information of the flushing fluid, so that the fixed seat can automatically rise to the target position and achieve flow regulation. It can also determine the current flow rate information of the flushing fluid in real time using the pipe diameter information and the current height information, and ensure that the current flow rate information of the flushing fluid changes slowly during the process of the fixed seat automatically rising to the target position, which is highly flexible.

[0132] Accordingly, in application, the flushing fluid flow control methods of Examples 1, 2, 3 and 4 can be recombined / disassembled according to the actual situation to form independent control methods.

[0133] Therefore, this invention combines a distance sensor, a main controller, and a lifting mechanism. The main controller automatically calculates the target height of the fixed base (i.e., the liquid bag) based on the user's flow / velocity requirements and detects the current height information of the fixed base through the distance sensor to control the lifting mechanism's lifting state, thereby adjusting the real-time flow / velocity of the flushing fluid. This eliminates the need for manual adjustment of the liquid bag height, making operation convenient and enabling rapid and precise control of the flushing fluid flow / velocity. Simultaneously, this invention automatically calculates the current flow information of the flushing fluid based on the user's height requirements, allowing the user to accurately control the current flow information corresponding to the current height, providing high flexibility.

[0134] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A liquid-carrying rod, characterized in that, Includes support mechanism, lifting mechanism, distance sensor and main controller; The support mechanism includes a support rod, a fixed base, and a hanger. The lifting mechanism is connected to the support rod to drive the lifting of the support rod. The fixed base is fixed to the support rod to lift and lower synchronously with the support rod. The hanger and the distance sensor are respectively mounted on the fixed base. The distance sensor detects the current height information of the fixed base and sends the current height information to the main controller. The main controller is used to control the lifting state of the lifting mechanism to adjust the real-time flow rate of the flushing fluid.

2. The liquid-hanging rod as described in claim 1, characterized in that, The main controller includes a first height control module and / or a second height control module; The first height control module is used to acquire the pipe diameter information of the liquid pipe and the target flow rate information of the flushing liquid, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information, and control the lifting mechanism to drive the lifting of the support rod based on the target height information so that the fixed seat moves to the target position; The second height control module is used to acquire the pipe diameter information of the liquid pipe and the target flow rate information of the flushing liquid, calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate information, and control the lifting mechanism to drive the support rod to lift and lower based on the target height information, so that the fixed seat moves to the target position.

3. The liquid-hanging rod as described in claim 1, characterized in that, The main controller includes a flow control module, which is used to acquire the pipe diameter information, target height information and current height information of the fixed seat, calculate the current flow information of the flushing fluid based on the pipe diameter information and current height information, control the lifting mechanism to drive the support rod to lift and lower based on the target height information so that the fixed seat moves to the target position, and determine the real-time flow rate of the flushing fluid based on the current flow information.

4. The liquid-hanging rod as described in claim 1, characterized in that, The support rod has a through-groove through it, and the signal line of the distance sensor is located in the through-groove. One end of the signal line extends out of the through-groove and is connected to the distance sensor, and the other end extends out of the through-groove and is connected to the main controller.

5. The liquid-hanging rod as described in claim 4, characterized in that, The support rod is also equipped with a tank chain, and the other end of the signal line extends out of the cable groove and passes through the tank chain to connect with the main controller.

6. The liquid-hanging rod as described in claim 1, characterized in that, It also includes a liquid storage mechanism, which includes a liquid bag for storing rinsing liquid and a liquid pipe communicating with the liquid bag, the liquid bag being hung on the hanger.

7. A method for controlling the flow rate of flushing fluid based on the drip tray according to any one of claims 1 to 6, characterized in that, include: Obtain the pipe diameter information and the target flow rate / target velocity information of the flushing fluid; Calculate the target height information of the fixed seat based on the pipe diameter information and the target flow rate / target flow velocity information; Based on the target height information, the lifting mechanism is controlled to drive the support rod to rise and fall, so that the fixed seat moves to the target position.

8. The method for controlling the flushing fluid flow rate of the hanging rod as described in claim 7, characterized in that, The step of calculating the target height information of the fixed seat based on the pipe diameter information and the target flow rate information includes: According to the formula A = πR 2 Calculate the cross-sectional area of ​​the pipe, where A is the cross-sectional area of ​​the pipe and R is the pipe diameter information; According to the formula H = Q 2 / [2g(ρA) 2 ] Calculate the target height information of the fixed seat, where H is the target height information, Q is the target flow rate information, g is the gravitational acceleration, and ρ is the flushing fluid density.

9. The method for controlling the flushing fluid flow rate of the hanging rod as described in claim 7, characterized in that, The step of calculating the target height information of the fixed seat based on the pipe diameter information and the target flow velocity information includes: According to the formula A = πR 2 Calculate the cross-sectional area of ​​the pipe, where A is the cross-sectional area of ​​the pipe and R is the pipe diameter information; The flow rate information is calculated according to the formula Q=ρvA, where Q is the target flow rate information, ρ is the flushing fluid density, and v is the target flow velocity information. According to the formula H = Q 2 / [2g(ρA) 2 ] Calculate the target height information of the fixed base, where H is Target height information, where g is the acceleration due to gravity.

10. The method for controlling the flushing fluid flow rate of the hanging rod as described in claim 7, characterized in that, Also includes: Obtain the pipe diameter information, target height information and current height information of the mounting base; The current flow rate of the flushing fluid is calculated based on the pipe diameter and current height information. The lifting mechanism is controlled to drive the support rod to rise and fall according to the target height information, so that the fixed seat moves to the target position, and the real-time flow rate of the flushing fluid is determined according to the current flow information.

11. The method for controlling the flushing fluid flow rate of the hanging rod as described in claim 10, characterized in that, The step of calculating the current flow rate of the flushing fluid based on the pipe diameter information and the current height information includes: According to the formula A = πR 2 Calculate the cross-sectional area of ​​the pipe, where A is the cross-sectional area of ​​the pipe and R is the pipe diameter information; According to the formula Calculate the current flow velocity information, where v' is the current flow velocity information, g is the gravitational acceleration, and h is the current height information; The current flow rate is calculated using the formula Q' = ρv'A, where Q' is the current flow rate and ρ is the flushing fluid density.

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