Flow guide channel switching device

Abstract

The utility model relates to a diversion channel switching device which comprises a front end cover, a multi-way valve body and a rear end cover which are sequentially arranged. A first liquid inlet is formed in the front side surface of the front end cover; a plurality of first liquid outlets are formed along the side wall of the multi-way valve body; a valve element is arranged in the multi-way valve body and used for communicating the first liquid inlet with the at least one first liquid outlet. A first driving mechanism is arranged on the rear side face of the rear end cover, an output shaft of the first driving mechanism penetrates into the rear end cover and then is fixedly connected with the valve element, and the valve element is driven by the first driving mechanism to rotate to switch the first liquid outlet communicated with the first liquid inlet. According to the utility model, a rotary switching shunting technology is adopted, a single electromechanical structure is used for controlling one-to-multiple water flow, the control is accurate, the speed and the conduction direction are adjustable, and the influence of the water flow pressure change on the water pump and a pipe network is small.

Description

Technical Field

[0001] The utility model relates to the field of water massage, in particular to a diversion channel switching device. Background Art

[0002] Existing water massage equipment (such as water massage beds, whirlpool bubble baths, and integrated hydrotherapy pools) either does not differentiate and switch between massage areas, resulting in poor user experience or uses a large number of solenoid valves to switch between massage areas. Frequent solenoid valve activation can easily damage the valves, and when the solenoid valves are activated, the pressure in the water pump and pipe network fluctuates frequently, shortening their lifespan. The following deficiencies also exist:

[0003] The existing technology controls water flow diversion by using an intermittent conduction method of a solenoid valve, which has the disadvantages of having many control points, occupying many controller circuits, and having a high failure rate.

[0004] In the existing technology, when there is a single or multi-way pipeline diversion, closing the existing valve or opening the remaining valves will cause the pipeline network to reduce or increase the water pressure. For example:

[0005] The water supply end uses a water pump to pressurize the water. The diameter of the water supply end pipe is DN50. Take the water outlet end with six branches and all of them are DN20 as an example:

[0006] When the six branch DN20 valves are opened, the water pressure is about 0.08 MPa;

[0007] When the three branch DN20 valves are opened, the water pressure is about 0.12 MPa;

[0008] When a branch DN20 valve is opened, the water pressure is about 0.16 MPa;

[0009] Therefore, changes in the number of open channels will affect the water pressure in the pipe network, and thus affect the water jet force at the outlet.

[0010] Existing technologies typically use instant opening and closing, significantly impacting pipe network water pressure. This fails to meet the comfort requirements of massage jet applications. Using adjustable valves in all channels to address this drawback would result in a large equipment footprint, complex control circuits, and increased failure rates.

[0011] Underwater massage equipment typically occupies a relatively small footprint, being installed on a frame support area beneath the tub, resulting in limited installation space. Conventional massage jet systems, lacking space-saving water flow switching devices and technical solutions, often lack the ability to zone the massage jet flow or simply rely on solenoid valves to control a small number of jets. This fails to meet the growing demand for refined comfort and functionality in both leisure and medical massage stimulation.

[0012] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0013] In response to the defects in the existing technology, the purpose of the present invention is to provide a diversion channel switching device that adopts rotary switching diversion technology. A single electromechanical structure controls multiple water flows, with precise control, adjustable speed, and adjustable conduction direction. Changes in water flow pressure have little impact on water pumps and pipelines.

[0014] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0015] A diversion channel switching device, characterized by comprising:

[0016] The front cover 1, the multi-way valve body 2, and the rear cover 3 are arranged in sequence;

[0017] A first liquid inlet 11 is provided on the front side of the front cover 1;

[0018] A plurality of first liquid outlets 21 are provided along the side wall of the multi-way valve body 2;

[0019] A valve core 7 is provided in the multi-way valve body 2 for connecting the first liquid inlet 11 with at least one first liquid outlet 21;

[0020] A first driving mechanism 6 is provided on the rear side of the rear end cover 3. The output shaft of the first driving mechanism 6 penetrates the rear end cover 3 and is fixedly connected to the valve core 7. The valve core 7 rotates under the drive of the first driving mechanism 6 to switch the first liquid outlet 21 connected to the first liquid inlet 11.

[0021] On the basis of the above technical solution, the first liquid inlet 11 and the first liquid outlet 21 have the same diameter.

[0022] On the basis of the above technical solution, the first driving mechanism 6 is a servo motor.

[0023] On the basis of the above technical solution, the first driving mechanism 6 is equipped with a reducer 4;

[0024] The output shaft 5 of the first driving mechanism 6 is directly connected to the reducer 4 , and the reducer 4 is fixedly inserted into the valve core 7 through a key bar after amplifying the torque.

[0025] On the basis of the above technical solution, the first driving mechanism 6 is connected to the control system via a pulse transmission line;

[0026] The control system starts, stops, reverses, or accelerates or decelerates by controlling the first drive mechanism 6 to adjust the valve core 7 .

[0027] On the basis of the above technical solution, the valve core 7 includes:

[0028] The valve core head 71 has a valve core rod 72 on its rear side, a valve core liquid inlet 73 adapted to the first liquid inlet 11 on its front side, and at least one rectangular valve core liquid outlet 74 on its side wall. The valve core rod 72 is used to connect the drive mechanism.

[0029] On the basis of the above technical solution, as the valve core 7 rotates, the first liquid inlet 11 and the first liquid outlet 21 switch between the following two states:

[0030] In the first state, the valve core liquid outlet 74 of the valve core 7 is only connected to the first liquid outlet 21;

[0031] In the second state, the valve core liquid outlet 74 of the valve core 7 is connected to the two adjacent first liquid outlets 21 at the same time, realizing the function of gradual switching of water flow.

[0032] On the basis of the above technical solution, a sunken concave platform 75 is provided around the valve core liquid outlet 74, and a Teflon gasket is embedded in the sunken concave platform 75, so that the valve core 7 and the multi-way valve body 2 are closely matched to prevent water leakage.

[0033] On the basis of the above technical solution, the mounting plate 31 is fixed to the rear side of the rear end cover 3, and a mounting base 32 is provided at its lower end;

[0034] One end of the reducer mounting seat 33 is fixedly connected to the mounting plate 31 , and the other end is fixedly connected to the reducer 4 .

[0035] On the basis of the above technical solution, a position sensor 10 is provided on the mounting plate 31 , and a metal part 9 is provided on the transmission shaft 8 of the reducer 4 located in the reducer mounting seat 33 .

[0036] The diversion channel switching device described in the utility model can be used for switching the jet ports of water massage and has the following beneficial effects:

[0037] 1. The technical purpose of achieving water flow impact massage position switchability and adjustable switching speed is achieved;

[0038] 2. The water flow can be directed to one or more pipelines and then the switching will stop. There will be no water flow in the unselected pipelines.

[0039] 3. The diversion channel is switched by rotating, which can realize the water flow through the pipeline in sequence and cyclic changes;

[0040] 4. By changing the direction and order of rotation, the order of water circulation can be changed;

[0041] 5. The diversion channel is switched based on a single motor (servo motor). By adjusting the motor speed, the speed of water circulation can be adjusted.

[0042] 6. The design scheme of consistent diameter of one-to-one water outlet and enlarged diameter of one-to-many water outlet is adopted, so that the water pressure will not change due to the necking of the water flow channel.

[0043] The diversion channel switching device described in the present invention can realize water spray control of different pipelines through a single safe voltage electromechanical device, avoiding the problem of a complicated solenoid valve matrix leading to multiple control circuit lines and multiple electromagnetic or electric mechanisms that are prone to malfunction, thereby achieving the advantages of safety and stability.

[0044] The diversion channel switching device described in the present invention realizes the position specification of water flow impact on the human body to massage the massage position from top to bottom or from bottom to top, and can also realize the change of massage position from left to right or from right to left; the water flow switching can be completed only by controlling the motor speed and direction, and the speed of change is adjustable, which has the advantage of flexible adjustment of adjustable change direction.

[0045] The diversion channel switching device described in the present invention has the function of gradually switching the water flow, and will not cause large fluctuations in the water pressure of the pipe network as in conventional methods, thereby achieving the advantage of a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The utility model has the following drawings:

[0047] The accompanying drawings are provided to facilitate a better understanding of the present invention and do not constitute an undue limitation of the present invention.

[0048] Figure 1 A schematic diagram of the structure of the embodiment 1 of the diversion channel switching device described in the utility model Figure 1 .

[0049] Figure 2 A schematic diagram of the structure of the embodiment 1 of the diversion channel switching device described in the utility model Figure 2 .

[0050] Figure 3 A schematic structural diagram of the valve core of the present invention.

[0051] Figure 4 Schematic diagram of the installation method of the position sensor of the present invention. DETAILED DESCRIPTION

[0052] The present invention will be described in further detail below with reference to the accompanying drawings. The detailed description, which is provided in conjunction with exemplary embodiments of the present invention and includes various details of the embodiments to aid understanding, should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.

[0053] like Figure 1 、 Figure 3 As shown, the present invention provides a diversion channel switching device, comprising:

[0054] The front cover 1, the multi-way valve body 2, and the rear cover 3 are arranged in sequence;

[0055] A first liquid inlet 11 is provided on the front side of the front cover 1;

[0056] A plurality of first liquid outlets 21 are provided along the side wall of the multi-way valve body 2;

[0057] A valve core 7 is provided in the multi-way valve body 2 for connecting the first liquid inlet 11 with at least one first liquid outlet 21;

[0058] A first driving mechanism 6 is provided on the rear side of the rear end cover 3. The output shaft of the first driving mechanism 6 penetrates the rear end cover 3 and is fixedly connected to the valve core 7. The valve core 7 rotates under the drive of the first driving mechanism 6 to switch the first liquid outlet 21 connected to the first liquid inlet 11.

[0059] For example, the first liquid inlet 11 and the first liquid outlet 21 have the same diameter. The one-to-one outlets have the same diameter, while the one-to-many outlets have larger diameters, so that the water pressure does not change due to the necking of the water flow channel.

[0060] For example, Figure 2 As shown, six first liquid outlets 21 are provided at equal intervals along the side wall of the multi-way valve body 2 .

[0061] Exemplarily, the first driving mechanism 6 is a servo motor, preferably a low-voltage servo motor, such as a low-voltage 24V servo motor, which can ensure working safety. The servo motor is used to accurately control the rotation speed and rotation direction of the valve core.

[0062] Exemplarily, the first drive mechanism 6 is equipped with a reducer 4. The output shaft of the first drive mechanism 6 can be directly connected to the valve core 7. As a more preferred embodiment, the reducer 4 is used in conjunction with a servo motor capable of low-speed constant torque output. This can achieve low-speed, high-torque drive of the rotating shaft. The servo motor can still achieve a wide speed adjustment range after deceleration based on the speed adjustment range of 0-3000 rpm.

[0063] Exemplarily, the output shaft 5 of the first driving mechanism 6 is directly connected to the reducer 4. After the reducer 4 amplifies the torque, it is fixedly inserted into the valve core 7 through a key bar. The key bar is not shown in the figure. The use of internal and external shafts plus key bars facilitates installation and maintenance.

[0064] It is understandable that the 24V safe low-voltage servo motor is connected to the output shaft of the reducer to obtain greater torque to work on the valve core. The servo motor uses a 24V low-voltage motor to reduce the risk of electric shock after leakage.

[0065] It is understandable that a servo motor is used to drive the reducer to ensure long-term stable operation in the scenario of low-speed switching of water flow channels.

[0066] For example, an O-ring is provided between the front cover 1 and the multi-way valve body 2, and an O-ring is provided between the rear cover 3 and the multi-way valve body 2. The O-rings provide a waterproof seal. At least one O-ring is provided, and two may be provided as appropriate.

[0067] On the basis of the above technical solution, the first driving mechanism 6 is connected to the control system through a pulse transmission line.

[0068] This utility model does not require complicated multi-way solenoid valve access, saving control system ports. It uses a single industrial-grade servo motor with high stability to operate, which can avoid frequent switching of multiple solenoid valves and long-term conduction, which may cause damage to the solenoid valves and affect the operation of the entire system.

[0069] The control system adjusts the start, stop, direction change, acceleration and deceleration of the valve core 7 by controlling the first drive mechanism 6 .

[0070] On the basis of the above technical solution, Figure 3 As shown, the valve core 7 includes:

[0071] The valve core head 71 has a valve core rod 72 on its rear side, a valve core liquid inlet 73 adapted to the first liquid inlet 11 on its front side, and at least one rectangular valve core liquid outlet 74 on its side wall. The valve core rod 72 is used to connect to a driving mechanism, such as the transmission shaft 8 of the reducer 4, or the output shaft 5 of the first driving mechanism 6.

[0072] For example, as the valve core 7 rotates, the first liquid inlet 11 and the first liquid outlet 21 switch between the following two states:

[0073] In the first state, the valve core liquid outlet 74 of the valve core 7 is only connected to the first liquid outlet 21;

[0074] In the second state, the valve core liquid outlet 74 of the valve core 7 is connected to the two adjacent first liquid outlets 21 at the same time.

[0075] It can be understood that the valve core liquid outlet 74 of the valve core 7 is connected to the two adjacent first liquid outlets 21 at the same time, which is a process of gradual water flow switching.

[0076] This example achieves the purpose of switching water flow by using several evenly distributed first liquid outlets 21 that mate with the valve core liquid outlet 74 of the valve core 7. To maintain constant water flux and maintain a consistent water flow path regardless of the valve core's position, this example provides a rectangular valve core liquid outlet 74, the size of which matches the center-to-center distance between two adjacent first liquid outlets 21. When any first liquid outlet 21 is completely blocked, the adjacent first liquid outlet 21 along the valve core's rotational direction is completely open. Similarly, when one first liquid outlet 21 is half-blocked, the adjacent first liquid outlet 21 along the valve core's rotational direction is half-open. This cycle allows switching of water flow channels without stopping the pump or adjusting the water pressure by adjusting the pump speed, and without causing pressure changes in the pipeline network. Based on this method, the water flow from the two outlets can be gradually reduced in one direction and gradually increased in the other, effectively avoiding the pressure shock to the water pump caused by the complete opening and closing of the water channel. The water flow from the outlet will not cause a poor user experience like the sudden switching of the solenoid valve.

[0077] It can be understood that in this example, the water diversion section has one inlet and multiple outlets within the same path, with only a single channel fully conductive, and adjacent channels gradually transitioning to conductive during switching. Different-path, one large channel enters multiple (less than the total number of channels) smaller channels, all conductive simultaneously, with adjacent channels gradually transitioning to conductive during switching.

[0078] On the basis of the above technical solution, stainless steel bearings are installed at both ends of the valve core 7.

[0079] On the basis of the above technical solution, Figure 3 As shown, a sunken concave platform 75 is provided around the valve core liquid outlet 74, and a Teflon gasket is embedded in the sunken concave platform 75, so that the valve core 7 and the multi-way valve body 2 are closely matched to prevent water leakage.

[0080] For example, the outer diameter of the Teflon gasket is larger than the diameter of the first liquid outlet 21 to prevent the gasket from detaching and entering the water flow channel. The through hole on the multi-way valve body 2 for mounting the first liquid outlet 21 is rounded to prevent scratching the Teflon gasket, which would increase friction and leak water.

[0081] It is understandable that since the Teflon gasket fixed on the valve core is tightly fitted with the housing and has friction, the torque is amplified by adding a reducer to ensure that the friction resistance can be overcome.

[0082] On the basis of the above technical solution, Figure 1As shown, the mounting plate 31 is fixed to the rear side of the rear end cover 3, and a mounting base 32 is provided at its lower end;

[0083] One end of the reducer mounting seat 33 is fixedly connected to the mounting plate 31 , and the other end is fixedly connected to the reducer 4 .

[0084] Exemplarily, the mounting plate 31 , the mounting base 32 and the reducer mounting seat 33 are integrally formed.

[0085] On the basis of the above technical solution, Figure 4 As shown, a position sensor 10 is provided on the mounting plate 31 , and a metal part 9 is provided on the transmission shaft 8 of the reducer 4 located in the reducer mounting seat 33 .

[0086] For example, the combination of the metal part 9 and the position sensor 10 can accurately indicate the direction position of the valve core. Through the linkage between the position and the servo motor, it can stop at a certain position and can also perform program-defined stroke. It is not limited to constant speed rotation in the same direction.

[0087] For example, a water seal is provided at the portion where the transmission shaft 8 penetrates the rear end cover 3. For example, a water seal dynamic ring is installed on the transmission shaft 8, and a static ring is embedded in the rear end cover 3.

[0088] On the basis of the above technical solution, the first liquid inlet 11 is connected to the water pump, and the pressurized water flows through the hollow channel of the valve core and enters the valve core liquid outlet 74.

[0089] It should be noted that:

[0090] When the number of the valve core liquid outlets 74 increases, the water flux increases exponentially, and the corresponding water inlet also needs to be enlarged to ensure that the water flux of each first liquid outlet 21 does not decrease.

[0091] Increasing the number of first liquid outlets 21 does not affect the water flux. In the case of a shell of the same size, the circulation time of each channel will be shortened, changing the duty cycle of the gradual switching of the water flow. If the shell and the valve core diameter are simultaneously expanded to keep the size of the valve core liquid outlet 74 unchanged, the duty cycle of the gradual switching of the water flow will not be affected. The water flow switching duty cycle refers to the period of time during which water will flow out of the two first liquid outlets 21 during the transition phase of the water flow switching process, and the flow rate is not at the maximum.

[0092] The length of the valve core liquid outlet 74 is equal to the center-to-center distance between two adjacent first liquid outlets 21. Different sizes of the housing, the number of first liquid outlets 21, and the diameter of the first liquid outlet 21 will affect the water flow switching duty cycle. The relationship table is as follows:

[0093]

[0094] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0095] The above description is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by technical personnel in this field based on the content disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A diversion channel switching device, characterized in that: include: A front end cover (1), a multi-way valve body (2), and a rear end cover (3) are sequentially arranged; A first liquid inlet (11) is provided on the front side of the front end cover (1); A plurality of first liquid outlets (21) are provided along the side wall of the multi-way valve body (2); A valve core (7) is provided in the multi-way valve body (2) for connecting the first liquid inlet (11) with at least one first liquid outlet (21); A first driving mechanism (6) is provided on the rear side of the rear end cover (3). An output shaft of the first driving mechanism (6) penetrates the rear end cover (3) and is fixedly connected to a valve core (7). The valve core (7) rotates under the drive of the first driving mechanism (6) to switch the first liquid outlet (21) in communication with the first liquid inlet (11).

2. A flow diversion channel switching device according to claim 1, characterized in that: The first liquid inlet (11) and the first liquid outlet (21) have the same diameter.

3. The diversion channel switching device according to claim 1, characterized in that: The first driving mechanism (6) is a servo motor.

4. The diversion channel switching device according to claim 1, characterized in that: The first driving mechanism (6) is equipped with a reducer (4); The output shaft (5) of the first driving mechanism (6) is directly connected to the reducer (4), and the reducer (4) is fixedly inserted into the valve core (7) through a key bar after torque amplification.

5. The diversion channel switching device according to claim 1, characterized in that: The first driving mechanism (6) is connected to the control system via a pulse transmission line; The control system controls the first driving mechanism (6) to adjust the valve core (7) to start, stop, reverse, or accelerate or decelerate.

6. The diversion channel switching device according to claim 1, characterized in that: The valve core (7) comprises: The valve core head (71) has a valve core rod (72) on its rear side, a valve core liquid inlet (73) adapted to the first liquid inlet (11) on its front side, and at least one rectangular valve core liquid outlet (74) on its side wall. The valve core rod (72) is used to connect to a driving mechanism.

7. The diversion channel switching device according to claim 6, characterized in that: As the valve core (7) rotates, the first liquid inlet (11) and the first liquid outlet (21) switch between the following two states: In the first state, the valve core liquid outlet (74) of the valve core (7) is only connected to one first liquid outlet (21); In the second state, the valve core liquid outlet (74) of the valve core (7) is simultaneously connected to the two adjacent first liquid outlets (21), thereby realizing the function of gradual switching of water flow.

8. The diversion channel switching device according to claim 6, characterized in that: A sunken concave platform (75) is provided in the circumference of the valve core liquid outlet (74), and a Teflon gasket is embedded in the sunken concave platform (75), so that the valve core (7) and the multi-way valve body (2) are closely matched to prevent water leakage.

9. The diversion channel switching device according to claim 4, characterized in that: The mounting plate (31) is fixed to the rear side of the rear end cover (3), and a mounting base (32) is provided at the lower end thereof; One end of the speed reducer mounting seat (33) is fixedly connected to the mounting plate (31), and the other end is fixedly connected to the speed reducer (4).

10. The diversion channel switching device according to claim 9, characterized in that: A position sensor (10) is provided on the mounting plate (31), and a metal part (9) is provided on the transmission shaft (8) of the reducer (4) located in the reducer mounting seat (33).

Images