CN215673831U

CN215673831U - Two-dimensional valve rod intelligent control system

Info

Publication number: CN215673831U
Application number: CN202022988503.8U
Authority: CN
Inventors: 邵志龙; 谢少枫; 金宁
Original assignee: China Jiliang University; China Jiliang University Shangyu Advanced Research Institute Co Ltd
Current assignee: China Jiliang University; China Jiliang University Shangyu Advanced Research Institute Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-01-28
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a two-dimensional valve rod intelligent control system which is used for controlling a proportional valve, wherein the proportional valve comprises a proportional valve main body, a valve control rod is arranged on the proportional valve main body, and the valve control rod can rotate, push and pull left and right and comprises a control system and a connecting device; the connecting device comprises a connecting device shell with an opening at the bottom, a flat plate is arranged in the inner cavity of the connecting device shell, an opening is formed in the middle of the flat plate, and the valve control rod penetrates through the opening of the flat plate; the second execution motor is connected with the valve control rod; the second executing motor is arranged on the arc-shaped limiting guide rail in a sliding mode; the arc-shaped limiting guide rail is positioned right above the valve control rod; the utility model can stabilize the temperature and the water yield and reduce the flow rate when eliminating the temperature disturbance. The material is pure mechanical, good in expansion with heat and contraction with cold, and slow in reaction. A double-shaft extension motor and an electromagnetic clutch (relay).

Description

Two-dimensional valve rod intelligent control system

Technical Field

The utility model belongs to the technical field of valve control, particularly relates to a household tap water valve control technology, and particularly relates to a two-dimensional valve rod intelligent control system.

Background

Valves are commonly used to handle the supply of liquid or gas, and precise control of the valves has a direct impact on improving the quality of the product or service. The handle of the direct manual control valve generally has a rotating structure or a push-pull structure, but the relationship between the rotating angle or the push-pull displacement and the flow is generally nonlinear. The nonlinear relationship causes inconvenience in manually and accurately controlling the flow or the proportion by a user, and the user experience is poor. The control of water temperature and flow of a common bathroom faucet is a typical two-dimensional valve rod control problem, namely, one handle controls the total flow and the proportion of cold water and hot water flow, and the adjustment of the water temperature and the flow is always inconvenient when a user takes a bath. The prior art is generally solved by designing a valve or a faucet with a special structure, and arranging a plurality of sensors in the valve or a flow passage and connecting the sensors with a control circuit. Such methods can theoretically achieve better results, but have a problem of higher implementation cost.

Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-cost two-dimensional valve rod intelligent control system and solve the problem that manual control of a two-dimensional valve rod is inconvenient.

In order to solve the technical problem, the utility model provides a two-dimensional valve rod intelligent control system which is used for controlling a proportional valve, wherein the proportional valve comprises a proportional valve main body, a valve control rod is arranged on the proportional valve main body, and the valve control rod can rotate, push and pull left and right and comprises a connecting device;

the connecting device comprises a connecting device shell with an opening at the bottom, a flat plate is arranged in the inner cavity of the connecting device shell, an opening is formed in the middle of the flat plate, and the valve control rod penetrates through the opening of the flat plate;

the second execution motor is connected with the valve control rod; the second executing motor is arranged on the arc-shaped limiting guide rail in a sliding mode; the arc-shaped limiting guide rail is positioned right above the valve control rod;

the upper surface of the flat plate is provided with a first execution motor, a driven wheel, a pressing wheel and a tooth push rod;

an output shaft of the first execution motor is provided with a driving wheel in a worm transmission mode;

the driven wheel and the pinch roller are arranged on the flat plate through a wheel carrier;

the driving wheel is in transmission connection with the driven wheel, a gap is formed between the driven wheel and the pinch roller, and the tooth push rod penetrates through the gap;

the tooth push rod is in transmission connection with the driving wheel; one end of the tooth push rod is provided with a small lantern ring which is sleeved on a convex shaft of the large lantern ring;

the large lantern ring is sleeved on the neck of the valve control rod;

the top of the valve control rod is provided with a spline, an output shaft of the second execution motor is hollow, an inner spline is arranged on the inner wall of the output shaft of the second execution motor, and the output shaft of the second execution motor is sleeved on the spline of the valve control rod.

As an improvement on the two-dimensional valve rod intelligent control system of the utility model:

the axis of the driving wheel is horizontally arranged, and the side surface of the driving wheel is provided with a thread groove;

the axis of the driven wheel is vertically arranged, and the side surface of the driven wheel is provided with a thread groove which is respectively matched with the driving wheel;

and a thread groove matched with the driven wheel for use is formed in one side surface of the tooth push rod facing the driven wheel.

and a top opening for leading in a cable is formed in the top of the connecting device shell.

the center of the arc-shaped limiting guide rail is positioned on the axis of the total flow opening of the valve control rod.

one end of the tooth push rod is Y-shaped fork, the number of the small lantern rings is two, and the two small lantern rings are respectively arranged at the tail ends of the two Y-shaped forks;

protruding shafts are arranged on two sides of the large lantern ring, and the two small lantern rings are sleeved on the two protruding shafts.

The two-dimensional valve rod intelligent control system has the technical advantages that:

the utility model can stabilize the temperature and the water yield and reduce the flow rate when eliminating the temperature disturbance. The material is pure mechanical, good in expansion with heat and contraction with cold, and slow in reaction. A double-shaft extension motor and an electromagnetic clutch (relay).

The method specifically comprises the following technical advantages:

1. the technical support is provided for the accurate and rapid manual control of the two-dimensional valve rod, and the usability degree of one-key availability is achieved.

2. The utility model aims at realizing the utility model purpose with less functional unit, improve the reliability of system.

3. The implementation cost of manufacturers is reduced to the maximum extent, and even a third party can provide a modification part to a user, so that the market can be expanded by implementing the method, rather than competing for the stock market.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a proportional valve body 3 and its valve control stem 3-2;

FIGS. 2(a) - (e) are schematic diagrams of the different positions required for valve control rod 3-2 to achieve various specific flow rates and ratios;

FIG. 3 is a schematic diagram of an explosion structure of the two-dimensional valve stem intelligent control system of the present invention;

FIG. 4 is a block schematic diagram of the control system 1 of FIG. 3;

FIG. 5 is a schematic view showing the structure of a user interaction panel 1-1 according to embodiment 1;

FIG. 6 is a schematic view showing the structure of a user interaction panel 1-1 according to embodiment 2;

fig. 7 is a schematic structural diagram of a two-dimensional valve stem intelligent control system of the present invention.

Detailed Description

The utility model will be further described with reference to specific examples, but the scope of the utility model is not limited thereto.

The proportional valve comprises a proportional valve main body 3, a valve control rod 3-2 is arranged on the proportional valve main body 3, and a spline 3-1 is arranged at the top of the valve control rod 3-2.

The range of motion of the valve control lever 3-2, indicated by the double-ended arrow curve on the valve control lever 3-2 in fig. 1, can be regarded as the total opening of the proportional valve, and is called a first control dimension, and the valve control lever 3-2 can be pushed and pulled back and forth in the left-right direction in fig. 1; the double-ended arrow curve on the left side of the valve control lever 3-2 indicates that the valve control lever 3-2 can be rotated in both directions in a plane perpendicular to the plane of the paper for adjusting the ratio, referred to as the second control dimension, i.e. the valve control lever 3-2 can be rotated, at any total opening.

Fig. 2 shows the top view of fig. 1 and the top view as a function of the position of the valve control rod 3-2.

Fig. 2(a) shows a top view of the valve control lever 3-2 in a first extreme position in a first control dimension, in which the shaft of the valve control lever 3-2 is exposed on the side, the valve control lever 3-2 is in an inclined state, and the valve control lever 3-2 has a direction marking line 5 at its top end, currently in a vertical direction, indicating a ratio of the second control dimension of 1: 1. In this example, the valve control lever 3-2 in fig. 2(b) is assumed to be located at a cold-hot valve ratio of 1:1 and a total opening degree is zero.

Fig. 2(b) shows a top view of the valve control lever 3-2 in a second extreme position in a first control dimension, in which the shaft of the valve control lever 3-2 is exposed at the side, the valve control lever 3-2 is in an inclined state, and the valve control lever 3-2 has a direction marking line 5 at its top end, currently in a vertical direction, indicating a ratio of the second control dimension of 1: 1. In this example, the valve control lever 3-2 in fig. 2(b) is assumed to be located at a ratio of 1:1 with respect to the hot and cold valves of the hot and cold water faucet, and the total opening degree is the maximum opening degree.

Fig. 2(c) shows a top view of the valve control lever 3-2 in a neutral position in a first control dimension, wherein no side of the shaft of the valve control lever 3-2 is exposed, the shaft is in a vertical position, and the top end of the valve control lever 3-2 has a direction marking 5, which is currently in a vertical direction, indicating a ratio of the second control dimension of 1: 1. In this example, the valve control lever 3-2 in fig. 2(c) is assumed to be located at a ratio of 1:1 with respect to the hot and cold valves of the hot and cold water faucet, and the total opening degree is half of the maximum opening degree.

Fig. 2(d) shows a top view of the valve control lever 3-2 in a neutral position in a first control dimension, wherein no side of the shaft of the valve control lever 3-2 is exposed, the shaft is in a vertical position, the top end of the valve control lever 3-2 has a direction marking 5, which is currently in a left-down to right-up direction, indicating that the ratio of the second control dimension is left-up and right-down. In this embodiment, the position of the valve control lever 3-2 in fig. 2(d) is assumed as the proportion of the cold/hot valve of the hot/cold water faucet, that is, the hot water valve opening is larger than the cold water valve opening, and the total opening is half of the maximum opening.

Fig. 2(e) shows a top view of the valve control lever 3-2 in a second extreme position in a first control dimension, in which the shaft side of the valve control lever 3-2 is exposed, the shaft is in an inclined position, and the valve control lever 3-2 has a direction marking 5 at its top end, now in an upper left to lower right direction, indicating that the second control dimension is scaled to a smaller left and a larger right. In this embodiment, the position of the valve control lever 3-2 in fig. 2(e) is defined as the ratio of the cold and hot valves of the cold and hot water faucet, i.e., the hot water valve opening is smaller than the cold water valve opening, and the total opening is maximum.

Fig. 3 is divided into three parts from top to bottom, wherein the proportional valve body 3 and the valve chamber 4 constitute a proportional valve below, meaning that the proportional valve body 3 shown in fig. 1 is mounted in the valve chamber 4 and secured in position by a seal 4-1 and a fastener 4-2.

Embodiment 1, two-dimensional valve stem intelligent control system, as shown in fig. 1-5, comprises a control system 1, a connecting device 2 and a proportional valve.

The connecting device shell 2-12 of the connecting device 2 is of an inverted barrel shape, the upper end barrel bottom of the inner cavity of the connecting device shell 2-12 of the connecting device 2 is provided with an opening for leading in a cable, the lower end of the inner cavity is provided with a flat plate 2-11 close to the barrel opening, the middle of the flat plate 2-11 is provided with an opening, the shape and the size of the opening are required to ensure that the valve control rod 3-2 can move freely, and the valve control rod 3-2 penetrates through the opening of the flat plate 2-11. The flat plate 2-11 is used for mounting a first actuating motor 2-9.

The second executing motor 2-2 and the coaxial reduction gear set 2-3 can be sleeved on a spline 3-1 of the valve control rod 3-2 through an output shaft 2-3-1, the output shaft 2-3-1 is hollow, and the inner wall of the output shaft is provided with an internal spline.

The top of the second execution motor 2-2 is mounted on an arc-shaped limit guide rail 2-1 at the bottom of the upper-end barrel through a guide wheel or a guide shoe, the second execution motor 2-2 can slide on the arc-shaped limit guide rail 2-1, the circle center of the arc-shaped limit guide rail 2-1 is on the axis of the valve control rod 3-2 rotating back and forth in the first control dimension (total flow opening), and the connecting device shell 2-12 of the second execution motor 2-2 cannot rotate along the motor axis but can move in the arc-shaped guide rail direction, namely the first control dimension, along with the valve control rod 3-2.

An output shaft of the first execution motor 2-9 is provided with a driving wheel 2-8 in a worm transmission mode, the axis of the driving wheel 2-8 is horizontally arranged, and the side surface of the driving wheel is provided with a thread groove. The driven wheel 2-7 and the pressing wheel 2-5 are fixed on the flat plate 2-11 through the wheel carrier 2-10, the axis of the driven wheel 2-7 is vertically arranged, and the side surface of the driven wheel is provided with a thread groove matched with the driving wheel 2-8 for use. A gap is arranged between the driven wheel 2-7 and the pressing wheel 2-5, the tooth push rod 2-6 penetrates through the gap, and a thread groove matched with the driven wheel 2-7 is arranged on one side surface of the tooth push rod 2-6 facing the driven wheel 2-7. The other end of the tooth push rod 2-6 is a Y-shaped fork (not shown), the tail end of the fork is connected with a small lantern ring, the small lantern ring is sleeved on a convex shaft on two sides of the large lantern ring 2-4, the large lantern ring 2-4 is sleeved on the neck of the valve control rod 3-2, the valve control rod 3-2 penetrates through the large lantern ring 2-4, the valve control rod 3-2 can rotate in the large lantern ring 2-4, and the small lantern ring of the tooth push rod 2-6 can rotate along the convex shaft of the large lantern ring 2-4. When the first execution motors 2-9 rotate, the valve rod is freely moved in a first control dimension in a worm transmission mode, and the total opening degree of the valve is changed from closing to full opening.

When the valve is used, the first execution motor 2-9 is started, the output shaft of the first execution motor 2-9 drives the driving wheel 2-8 to rotate, the driving wheel 2-8 drives the driven wheel 2-7 to rotate, the driven wheel 2-7 drives the tooth push rod 2-6 to move back and forth, the large lantern ring 2-4 drives the valve control rod 3-2 to move back and forth on the first control dimension, the total opening degree of the valve is adjusted, and the valve control rod 3-2 drives the second execution motor 2-2 to slide on the arc-shaped limiting guide rail 2-1 through the output shaft 2-3-1, the spline 3-1 and the coaxial reduction gear set 2-3 during movement.

For the position of the valve control rod 3-2 under any condition in the first control dimension, when the rotating shaft of the second execution motor 2-2 rotates, the valve control rod 3-2 is driven to rotate freely in the second control dimension through the coaxial reduction gear set 2-3, and proportional adjustment of the valve is achieved. Wherein the bracket of the reduction gear set 2-3 is fixed with the second executing motor 2-2.

The control system 1 is mechanically connected to the connection device 2 by means of a sealing device, and the connection device 2 is mechanically connected to the proportional valve 3 by means of a sealing element 4-1 and a fastening element 4-2. The first execution motor 2-9 and the second execution motor 2-2 are connected with the motor driving module I1-3 and the motor driving module II 1-4 in the control system 1 through cables in a signal mode.

The block schematic diagram of the control system 1 in fig. 3 is shown in fig. 4, and the control system 1 includes a user interaction panel 1-1, a microcontroller 1-2, a motor driving module 1-3, and a motor driving module two 1-4. The user interaction panel 1-1 is in signal connection with the microcontroller 1-2, the microcontroller 1-2 is in signal connection with the motor driving module I1-3 and the motor driving module II 1-4 respectively, and the motor driving module I1-3 and the motor driving module II 1-4 are in signal connection with the first execution motor 2-9 and the second execution motor 2-2 respectively.

The user interaction panel 1-1 provides a way for a user to set the output characteristics of the system, and the user interaction panel 1-1 is connected to the microcontroller 1-2. The microcontroller 1-2 processes user input and feedback, generates and sends control signals to the motor driving module I1-3 and the motor driving module II 1-4. The motor driving modules I1-3 and the motor driving modules II 1-4 receive commands of the microcontroller 1-2, so that power voltage or current is generated and output to the motor. The motor is a stepping motor or a servo motor. The connection of the motor to the valve stem determines the effectiveness and convenience of two-dimensional valve stem control.

The setup suggestions of the user interaction panel 1-1 are shown in fig. 5 and include a flow increase key 1-11, a flow decrease key 1-13, a temperature decrease key 1-12, and a temperature increase key 1-14.

In the embodiment, a two-dimensional handle is replaced by four keys (a flow increasing key 1-11, a flow reducing key 1-13, a temperature reducing key 1-12 and a temperature increasing key 1-14), the user operation of the two-dimensional handle is simulated, the flow or the temperature can be small in amplitude and can be obviously sensed and changed by a human body through each key operation, and the setting can enable a user to accurately and quickly adjust the water temperature and the flow, so that the inconvenience of frequently and repeatedly adjusting by using a mechanical handle is avoided. The embodiment can be modified on the basis of the original common cold and hot water faucet, the method is to remove the original mechanical handle, and the product implementing the utility model, namely the control system 1 and the connecting device 2 in figure 3 are arranged on the original valve rod and the valve cavity.

Example 2:

as shown in fig. 6, the important difference of this embodiment compared with embodiment 1 is that one or more user habit setting keys 1-15 and corresponding operation status indicating devices 1-16 are added on the user interaction panel 1-1, and the operation status indicating devices 1-16 can be light emitting elements. In order to support the added keys to realize user habit memory, a nonvolatile storage module is added and is in signal connection with the microcontroller 1-2. The microcontroller 1-2 needs to be added with a read-write control program of a nonvolatile memory. After the proper temperature and flow are adjusted, a user only needs to press the user habit setting keys 1-15, the non-volatile storage module is added to remember the valve setting corresponding to the flow and the temperature, next time, the user only needs to press the corresponding user habit setting keys 1-15 again, the microcontroller 1-2 reads the content in the added non-volatile storage module, the first execution motor 2-9 and the second execution motor 2-2 are controlled to operate immediately, and the valve control rod 3-2 is pushed to the set position.

Therefore, the embodiment can meet the user requirement more quickly and reach the degree of one-key availability.

Example 3:

the water outlet of a common household water heater is always connected with a water tap by a water pipe, and the cold water remained in the hot water pipe is usually drained from the opening of the hot water tap to the water tap for hot water outlet. Although "one-touch available" can be realized in embodiment 2, water with a larger amount of cold water than the hot water pipe may need to be drained before the outlet water of the faucet reaches the set temperature, which causes a long waiting time for a user and also causes waste of water resources. Thus, without the use of temperature and flow sensors, the controller of the present invention should also be more intelligent in that it memorizes and analyzes the sequence of operations before the user presses the set key and the interval time between operations.

Generally, a user always wants to obtain the proper temperature as soon as possible when entering a bathroom, so that in the use habit of people for many years, the handle is adjusted to the second limit position of the first control dimension, the handle is rotated to the position with the maximum hot water proportion, and the hot water proportion or the flow rate is reduced immediately after the faucet discharges hot water until the water temperature and the flow rate are proper. Wherein, the time required for discharging the cold water remained in the hot water pipe at the fastest speed is that the controller of the embodiment should pay special attention to and memorize and use. In order to reduce the waiting time of the user and the waste of water resources, the microcontroller 1-2 should drive the execution motor to move the valve control lever 3-2 to the position where the cold water is stored in the fastest discharge hot water pipe and start timing at the initial stage of executing the one-touch available function (pressing the user habit setting button 1-15), and then drive the valve control lever 3-2 to the position in the non-volatile memory setting when the time reaches the corresponding operation time before the recorded user setting is obtained.

The microcontroller 1-2 of this embodiment also needs to memorize the time that is the pause after the water tap it controls is used by the user for a period of time and is shut down, and if the pause is short (e.g., within 2 minutes), the controller does not execute the hot water pipe residual cold water quick discharge sub-routine. Such a short time interval is understood by the controller as an interval of bathing by a user (for example, water does not need to be discharged simultaneously when using shampoo or body wash), and if the user turns on the faucet again, the user may be scalded by pure hot water because the hot water pipe reserved cold water quick discharge sub-routine is frequently performed. In addition, the user 2 can use the water after the user 1 runs out, the water using habits of the two users can be different or the same, and the quick discharging sub-program of the cold water reserved in the hot water pipe should not be executed when the user 2 presses a set quick water discharging key.

Therefore, the embodiment can realize rapid and safe water supply without using a sensor, the cost is lower, and more users can enjoy high-quality water supply service.

Example 4:

in this embodiment, on the basis of any of the foregoing embodiments, a communication module is added to the control circuit. When the user uses warm water through the system, the system can send state statement information to similar systems nearby or systems meeting the standard of the internet of things, and after receiving the information, the opposite side should give prompt information on the user interaction panel 1-1. Through the arrangement, when a person takes a bath, the interference caused by the fact that the other person warms water can be avoided or reduced, and when the weather is cold, the situation can frequently occur and the interference effect is more remarkable.

Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the utility model. It is obvious that the utility model is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims

1. Two-dimensional valve rod intelligence control system for control proportional valve, control proportional valve include proportional valve main part (3), are provided with valve control lever (3-2) on proportional valve main part (3), and valve control lever (3-2) can rotate and control push-and-pull, its characterized in that: comprising a connecting device (2);

the connecting device (2) comprises a connecting device shell (2-12) with an opening at the bottom, a flat plate (2-11) is arranged in the inner cavity of the connecting device shell (2-12), an opening is formed in the middle of the flat plate (2-11), and the valve control rod (3-2) penetrates through the opening of the flat plate (2-11);

the second execution motor (2-2) is connected with the valve control rod (3-2); the second execution motor (2-2) is arranged on the arc-shaped limiting guide rail (2-1) in a sliding manner; the arc-shaped limiting guide rail (2-1) is positioned right above the valve control rod (3-2);

the upper surface of the flat plate (2-11) is provided with a first actuating motor (2-9), a driven wheel (2-7), a pinch roller (2-5) and a tooth push rod (2-6);

an output shaft of the first execution motor (2-9) is provided with a driving wheel (2-8) in a worm transmission mode;

the driven wheel (2-7) and the pressing wheel (2-5) are arranged on the flat plate (2-11) through a wheel carrier (2-10);

the driving wheel (2-8) is in transmission connection with the driven wheel (2-7), a gap is formed between the driven wheel (2-7) and the pressing wheel (2-5), and the tooth push rod (2-6) penetrates through the gap;

the tooth push rod (2-6) is in transmission connection with the driving wheel (2-8); one end of the tooth push rod (2-6) is provided with a small lantern ring which is sleeved on the convex shaft of the large lantern ring (2-4);

the large lantern ring (2-4) is sleeved on the neck part of the valve control rod (3-2);

the top of the valve control rod (3-2) is provided with a spline (3-1), an output shaft (2-3-1) of the second execution motor (2-2) is hollow, the inner wall of the output shaft is provided with an internal spline, and the output shaft (2-3-1) of the second execution motor (2-2) is sleeved on the spline (3-1) of the valve control rod (3-2).

2. The two-dimensional valve stem intelligent control system of claim 1, wherein:

the axes of the driving wheels (2-8) are horizontally arranged and the side surfaces of the driving wheels are provided with thread grooves;

the axes of the driven wheels (2-7) are vertically arranged, and the side surfaces of the driven wheels are provided with thread grooves which are respectively matched with the driving wheels (2-8);

and a thread groove matched with the driven wheel (2-7) for use is arranged on one side surface of the tooth push rod (2-6) facing the driven wheel (2-7).

3. The two-dimensional valve stem intelligent control system of claim 2, wherein:

the top of the connecting device shell (2-12) is provided with a top opening for leading in a cable.

4. The two-dimensional valve stem intelligent control system of claim 3, wherein:

the circle center of the arc-shaped limiting guide rail (2-1) is positioned on the axis of the total flow opening of the valve control rod (3-2).

5. The two-dimensional valve stem intelligent control system of claim 4, wherein:

one end of each tooth push rod (2-6) is Y-shaped branched, the number of the small lantern rings is two, and the two small lantern rings are respectively arranged at the tail ends of the two Y-shaped branches;

protruding shafts are arranged on two sides of the large lantern ring (2-4), and the two small lantern rings are sleeved on the two protruding shafts.