Dual pot control valve actuator

Abstract

The application discloses a double-tank control valve transmission mechanism, which comprises a pressing plate fixed on a base, a containing space formed between the pressing plate and the base, a motor fixed on the pressing plate or the base, a motor wheel formed on a motor output shaft, a transmission assembly one located in the containing space, two ratchets located at upper and lower ends of the motor wheel, the motor wheel driving the ratchets to rotate through the ratchet structure, a transmission assembly two located in the containing space, a regeneration cam and a switching cam which are sleeved with each other, a rotating shaft at an upper end of the regeneration cam serving as an upper end rotating shaft of the transmission assembly two, a rotating shaft at a lower end of the switching cam serving as a lower end rotating shaft of the transmission assembly two, the upper end rotating shaft of the transmission assembly two being rotationally connected with a shaft sleeve one on the pressing plate, the lower end rotating shaft of the transmission assembly two being rotationally connected with a shaft sleeve two on the base, and the motor rotating the ratchets in different directions to respectively drive the regeneration cam to drive a regeneration pull rod or the switching cam to drive a switching pull rod.

Description

Technical Field

[0001] This invention relates to the field of water treatment, and in particular to a dual-tank control valve transmission mechanism for soft water equipment. Background Technology

[0002] Most dual-tank control valves currently on the market use a dual-piston structure to switch the water circuit. The upper piston controls the regeneration process of the regeneration tank, such as salt absorption, backwashing, forward washing, and water injection. The lower piston controls the switching process between the two tanks: one tank is in operation producing water, while the other tank is connected to the upper piston chamber to complete the regeneration process and then enters standby mode.

[0003] In the operation of the above structure, the upper and lower pistons are driven by a regeneration rod and a switching rod, respectively. These rods are typically driven by two eccentric cams, although some systems use DC motors to push and pull the rods via auger threads. In short, this requires two motors and two sets of transmission mechanisms for control, which is cumbersome, costly, has many potential points of failure, and occupies a large amount of space within the control box. For example, US Patent 8961797B2 uses two DC motors with two separate transmission mechanisms to push, pull, and rotate the valve core; this structure is complex, prone to failure, and also expensive. Summary of the Invention

[0004] The summary of this invention introduces a series of simplified concepts, all of which are simplifications of existing technologies in the field, and will be further explained in detail in the detailed description section. This summary is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] The technical problem to be solved by the present invention is to provide a dual-tank control valve transmission mechanism that is simple in structure, occupies little space, and is convenient for switching regeneration control.

[0006] To solve the above-mentioned technical problems, the present invention provides a dual-tank control valve transmission mechanism, comprising:

[0007] The clamping plate 3 is fixedly connected to the base 4, and a receiving space is formed between it and the base 4;

[0008] Motor 1 is fixed on clamping plate 3 or base 4, and motor wheel 6 is formed on the output shaft of motor 1;

[0009] Transmission component one, located in the accommodating space, includes:

[0010] Two ratchet wheels 5 are respectively mounted on the upper and lower ends of the motor wheel 6 on the motor wheel shaft. The motor wheel 6 drives the ratchet wheels 5 to rotate through the ratchet structure.

[0011] Transmission assembly two, located in the accommodating space beside transmission assembly one, includes:

[0012] The regeneration cam 8 and the switching cam 9 are nested together, one above the other;

[0013] The upper shaft of the regeneration cam 8 serves as the upper shaft of the transmission assembly 2, and the lower shaft of the switching cam 9 serves as the lower shaft of the transmission assembly 2.

[0014] The upper shaft of the transmission assembly 2 is rotatably connected to the bushing 31 on the pressure plate 3, and the lower shaft of the transmission assembly 2 is rotatably connected to the bushing 42 on the base 4.

[0015] The regeneration cam 8 and the switching cam 9 are also housed between the switching lever 20 and the regeneration lever 2 of the dual-tank control valve. When the motor rotates in the first direction, it drives the motor wheel 6, which in turn drives the upper ratchet 5 to engage and drive the regeneration cam 8 to drive the regeneration lever 2. When the motor rotates in the second direction, it drives the motor wheel 6, which in turn drives the lower ratchet 5 to engage and drive the switching cam 9 to drive the switching lever 20. The first direction and the second direction are opposite directions, such as clockwise rotation and counterclockwise rotation.

[0016] Optionally, the dual-tank control valve transmission mechanism can be further improved by regenerating the cam 8, which has a rotating shaft at its upper end and a large shaft 81 at its lower end.

[0017] The switching cam 9 has a large shaft 92 formed at its upper end and a rotating shaft formed at its lower end;

[0018] Among them, the first shaft 81 and the second shaft 92 are connected together, sharing a common shaft and being able to rotate independently of each other.

[0019] Optionally, the transmission mechanism of the dual-tank control valve can be further improved, with the first shaft 81 being hollow, the outer diameter of the second shaft 92 being adapted to the hollow inner diameter of the first shaft 81, and the second shaft 92 being inserted into the first shaft 81 for sleeve connection.

[0020] Alternatively, the second shaft 92 can be hollow, with the outer diameter of the first shaft 81 and the hollow inner diameter of the second shaft 92 matching, and the first shaft 81 inserted into the second shaft 92 for connection.

[0021] Optionally, the transmission mechanism of the dual-tank control valve can be further improved such that the length of the interlocking of the first shaft 81 and the second shaft 92 is not less than 75% of the distance between the first sleeve 31 and the second sleeve 42.

[0022] Optionally, the dual-tank control valve transmission mechanism can be further improved, with the ratchet structure comprising: ratchet teeth and a spring;

[0023] One-way ratchet teeth are formed on the upper and lower end faces of the motor wheel 6, respectively;

[0024] The end face of the ratchet 5 that contacts the motor wheel 6 has a one-way ratchet tooth;

[0025] Two springs are located between the upper ratchet 5 and the pressure plate 3, and between the lower ratchet 5 and the base 4, respectively.

[0026] Optionally, the dual-tank control valve transmission mechanism can be further improved, with bushing 3 41 formed on the base 4 and rotatably connected to the lower shaft of the motor wheel 6.

[0027] Bushing 4 32 is formed on the clamping plate 3 and is rotatably connected to the upper shaft of the motor wheel 6.

[0028] Optionally, the dual-tank control valve transmission mechanism can be further improved.

[0029] A bearing is installed at each of the following locations: bushing 2 (42), bushing 3 (41), and bushing 4 (32).

[0030] Optionally, the dual-tank control valve transmission mechanism can be further improved by a signal protrusion 91, which is formed on the side of the main shaft 92 and cooperates with a switching switch 10 for positioning control of the switching lever 20 driven by the switch.

[0031] Optionally, further improvements to the dual-tank control valve transmission mechanism may include:

[0032] The regenerative switch assembly 11 is fixed on the base 4 and is used for regenerative position control;

[0033] The salt absorption assembly 12 is fixed on the base 4 and is used for salt absorption process control.

[0034] The working principle of this invention is as follows:

[0035] When the motor gear drives the motor wheel in one direction, the motor wheel drives the upper ratchet through its ratchet structure, which in turn drives the regeneration cam. The regeneration cam then drives the regeneration lever, completing the regeneration process in the regeneration tank. When the motor gear drives the motor wheel in the opposite direction, the motor wheel drives the lower ratchet through its lower ratchet structure, which in turn drives the switching cam. The switching cam then drives the switching lever, completing the dual-tank switching process.

[0036] This invention utilizes ratchet teeth on the upper and lower ends of a motor-driven wheel, coupled with two sets of ratchet structures, to drive a regenerating cam and a switching cam via gear meshing. This allows the motor to drive one piston when rotating in one direction and the other piston when rotating in the opposite direction, without interference between them. This invention uses the forward and reverse rotation of the motor to achieve two-piston drive control, greatly simplifying the control program, reducing space requirements and structural complexity, while also lowering costs and facilitating installation and use. Attached Figure Description

[0037] The accompanying drawings are intended to illustrate the general characteristics of the methods, structures, and / or materials used in specific exemplary embodiments of the invention, supplementing the description in the specification. However, the drawings are schematic diagrams not drawn to scale and may not accurately reflect the precise structural or performance characteristics of any of the given embodiments. The drawings should not be construed as limiting or restricting the range of numerical values ​​or properties covered by exemplary embodiments of the invention. The invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0038] Figure 1 This is a schematic diagram of the external structure of an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0039] Figure 2 This is a top view of an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0040] Figure 3 This is an exploded view of an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0041] Figure 4 for Figure 2 A schematic diagram of the AA cross-section.

[0042] Figure 5 This is a schematic diagram of the motor wheel structure in an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0043] Figure 6 This is a schematic diagram of the ratchet structure in an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0044] Figure 7 This is a schematic diagram of the regenerative cam structure in an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0045] Figure 8 This is a schematic diagram of the drive cam structure in an embodiment of the dual-tank control valve transmission mechanism of the present invention.

[0046] Explanation of reference numerals in the attached figures

[0047] 1. Motor

[0048] 2 Regenerated tie rod

[0049] 3. Pressure plate

[0050] 4. Base

[0051] 5. Ratchet

[0052] 6 motor wheels

[0053] 7. Springs

[0054] 8 Regenerative Cam

[0055] 9. Switching Cams

[0056] 10. Switch

[0057] 11 Regenerative Switchgear

[0058] 12 Salt Absorption Components

[0059] 20 Switch lever

[0060] 21 Bearing 1

[0061] 22 bearings

[0062] 31 Bushing One

[0063] 32 bushing four

[0064] 41 Shaft sleeve three

[0065] 42 bushing two

[0066] 51 One-way ratchet

[0067] 61 One-way ratchet II

[0068] 81 Large Axle One

[0069] 82 Shaft One

[0070] 91 signal bulge

[0071] 92 Large Axle 2. Implementation

[0072] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and various details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the technical solutions of these exemplary embodiments are fully conveyed to those skilled in the art. It should be understood that when an element is referred to as "connected" or "combined" to another element, the element can be directly connected or combined to the other element, or there may be intermediate elements. The difference is that when an element is referred to as "directly connected" or "directly combined" to another element, there are no intermediate elements. Throughout the drawings, the same reference numerals always denote the same elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Example

[0073] refer to Figures 1-4 As shown, the present invention provides a dual-tank control valve transmission mechanism, comprising:

[0074] The clamping plate 3 is fixedly connected to the base 4, and a receiving space is formed between the clamping plate 3 and the base 4. For example, multiple support columns are provided on the base 4, and the clamping plate 3 is fixed to the support columns by screw caps.

[0075] Motor 1 is fixed on pressure plate 3, and motor wheel 6 is formed on the output shaft of motor 1;

[0076] Correspondingly, motor 1 can be fixed on base 4;

[0077] Bushing 3 41 is formed on base 4 and is rotatably connected to the lower shaft of motor wheel 6;

[0078] Bushing 32 is formed on clamping plate 3 and is rotatably connected to the upper shaft of motor wheel 6;

[0079] Combination Figure 5 As shown, the upper and lower end faces of the motor wheel 6 are formed with one-way ratchet teeth 61;

[0080] Transmission component one, located in the accommodating space, includes:

[0081] Two ratchet wheels 5 are respectively mounted on the upper and lower ends of the motor wheel 6 on the motor wheel shaft. The motor wheel 6 drives the ratchet wheels 5 to rotate through the ratchet structure.

[0082] Combination Figure 6 As shown, the end face of the ratchet 5 that contacts the motor wheel 6 is formed with a one-way ratchet tooth 51, and the one-way ratchet tooth 51 and the one-way ratchet tooth 61 are adapted to mesh.

[0083] Transmission assembly two, located in the accommodating space beside transmission assembly one, includes:

[0084] The regeneration cam 8 and the switching cam 9 are nested together, one above the other;

[0085] The upper shaft of the regeneration cam 8 serves as the upper shaft of the transmission assembly 2, and the lower shaft of the switching cam 9 serves as the lower shaft of the transmission assembly 2.

[0086] The upper shaft of the transmission assembly 2 is rotatably connected to the bushing 31 on the pressure plate 3, and the lower shaft of the transmission assembly 2 is rotatably connected to the bushing 42 on the base 4.

[0087] Combination Figure 7 As shown, the regenerating cam 8 has a rotating shaft 82 at its upper end and a large shaft 81 at its lower end. The outer diameter of the large shaft 81 is adapted to the hollow inner diameter of the large shaft 92.

[0088] Combination Figure 8 As shown, the switching cam 9 has a hollow large shaft 92 formed at its upper end and a rotating shaft 92 formed at its lower end (not shown in the figure due to the angle); the signal protrusion 91 is formed on the side of the large shaft 92, combined with... Figure 3 As shown, the signal protrusion 91 cooperates with a switch 10 for positioning control of the switch lever 20 driven by it;

[0089] The outer diameter of the first shaft 81 is compatible with the hollow inner diameter of the second shaft 92, and the first shaft 81 is inserted into the second shaft 92 for connection; the first shaft 81 and the second shaft 92 share a common shaft and can rotate independently of each other.

[0090] Correspondingly, there is another alternative connection method: the first shaft 81 is hollow, the outer diameter of the second shaft 92 is adapted to the hollow inner diameter of the first shaft 81, the second shaft 92 is inserted into the first shaft 81 and they are connected together to share a rotating shaft and can rotate independently.

[0091] The regenerative switch assembly 11 is fixed on the base 4 and is used for regenerative position control;

[0092] Salt absorption assembly 12, which is fixed on base 4, is used for salt absorption process control;

[0093] Among them, the regeneration cam 8 and the switching cam 9 are also housed between the switching lever 20 and the regeneration lever 2 of the dual-tank control valve. When the motor rotates in the first direction, the upper ratchet 5 engages to drive the regeneration cam 8 to drive the regeneration lever 2. When the motor rotates in the second direction, the lower ratchet 5 engages to drive the switching cam 9 to drive the switching lever 20. The first direction and the second direction are opposite directions.

[0094] The first and second directions can be selected according to actual usage needs. For example, the first direction is clockwise and the second direction is counterclockwise.

[0095] And, continue to refer to Figure 3 As shown, a ratchet structure for use in the above embodiments includes: ratchet teeth and a spring;

[0096] One-way ratchet teeth are formed on the upper and lower end faces of the motor wheel 6, respectively;

[0097] The end face of the ratchet 5 that contacts the motor wheel 6 has a one-way ratchet tooth;

[0098] Two springs are located between the upper ratchet 5 and the pressure plate 3, and between the lower ratchet 5 and the base 4, respectively.

[0099] Alternatively, the above embodiment can be further improved so that the length of the interlocking of the first shaft 81 and the second shaft 92 is not less than 75% of the distance between the first shaft sleeve 31 and the second shaft sleeve 42.

[0100] Alternatively, the above embodiment can be further improved by providing a bearing at the positions of bushing 2 42, bushing 3 41 and bushing 4 32 respectively.

[0101] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will also be understood that, unless explicitly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the meaning consistent with their meaning in the relevant field context, and not as having an idealized or overly formal meaning.

[0102] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A dual tank control valve actuator mechanism characterized by, The utility model relates to a double -tank control valve drive mechanism, including: Compression plate (3) is fixed on the base (4), and the space is formed between the base (4) and compression plate (3); Motor (1) is fixed on compression plate (3) or base (4), and the motor wheel (6) is formed on the output shaft of motor (1); Transmission assembly one is located in the accommodation space, and it includes: Two ratchets (5) are respectively set on the motor wheel rotating shaft of the upper and lower ends of motor wheel (6), and motor wheel (6) drives ratchet (5) to rotate through the ratchet structure engagement;Ratchet structure includes: ratchet and spring; Single -direction ratchet is formed on the upper and lower end surfaces of motor wheel (6); The end surface of ratchet (5) and motor wheel (6) is formed with single -direction ratchet; Two springs are respectively located between the upper end ratchet (5) and compression plate (3) and the lower end ratchet (5) and base (4); Transmission assembly two is located in the accommodation space on the side of transmission assembly one, and it includes: Upper and lower mutually nested regenerative cam (8) and switching cam (9); The rotating shaft of the upper end of regenerative cam (8) is as the upper end rotating shaft of transmission assembly two, and the rotating shaft of the lower end of switching cam (9) is as the lower end rotating shaft of transmission assembly two; The upper end rotating shaft of transmission assembly two is rotatably connected with the shaft sleeve one (31) on compression plate (3), and the lower end rotating shaft of transmission assembly two is rotatably connected with the shaft sleeve two (42) on base (4); Wherein, regenerative cam (8) and switching cam (9) are also accommodated between switching pull rod (20) and regenerative pull rod (2) of double -tank control valve, and the motor first direction rotation drives motor wheel (6) to drive the upper ratchet (5) to drive regenerative cam (8) to drive regenerative pull rod (2), and the motor second direction rotation drives motor wheel (6) to drive the lower ratchet (5) to drive switching cam (9) to drive switching pull rod (20), and the first direction and the second direction are opposite directions.

2. The double -tank control valve transmission mechanism according to claim 1, wherein: The upper end of regenerative cam (8) is formed with a rotating shaft, and the lower end is formed with a large shaft one (81); The upper end of switching cam (9) is formed with a large shaft two (92), and the lower end is formed with a rotating shaft; Wherein, the large shaft one (81) and the large shaft two (92) are nested together and can rotate independently.

3. The double -tank control valve transmission mechanism according to claim 2, wherein: The large shaft one (81) is hollow, and the outer diameter of the large shaft two (92) and the inner diameter of the large shaft one (81) are matched, and the large shaft two (92) is inserted into the large shaft one (81) and is nested; Or, the large shaft two (92) is hollow, and the outer diameter of the large shaft one (81) and the inner diameter of the large shaft two (92) are matched, and the large shaft one (81) is inserted into the large shaft two (92) and is nested.

4. The double -tank control valve transmission mechanism according to claim 2, wherein: The length of the large shaft one (81) and the large shaft two (92) nested with each other is not less than 75% of the distance between the shaft sleeve one (31) and the shaft sleeve two (42).

5. The double -tank control valve transmission mechanism according to claim 1, wherein: Shaft sleeve three (41) is formed on base (4), and is rotatably connected with the lower rotating shaft of motor wheel (6). The shaft sleeve four (32) is formed on the pressing plate (3) and is rotationally connected with the upper rotating shaft of the motor wheel (6).

6. The drive mechanism of the dual-tank control valve according to claim 4, characterized in that: The shaft sleeve two (42), the shaft sleeve three (41) and the shaft sleeve four (32) are respectively provided with a bearing.

7. The drive mechanism of the dual-tank control valve according to claim 1, characterized in that: The signal protrusion (91) is formed beside the large shaft two (92) and cooperates with the switch (10) to drive the switch pull rod (20) to be positioned and controlled.

8. The dual pot control valve actuator of claim 1 wherein, Further comprising: The regeneration switch group (11) is fixed on the base (4) and is used for regeneration position control; The salt suction assembly (12) is fixed on the base (4) and is used for salt suction process control.

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