Independent valve

Abstract

The utility model discloses an independent valve, which solves the problem that valve types cannot be switched in the prior art and comprises a valve body, a valve seat is arranged on the valve body, a valve rod is fixedly arranged in the center of the valve seat, a fixing seat fixedly connected with the valve seat is sleeved outside the valve rod, and the valve seat is sleeved outside the fixing seat. The independent valve further comprises a valve cover and a control device, wherein the valve rod can be sleeved with the valve cover, and the valve cover is fixedly connected with the fixing base. Random switching between a mechanical valve and an intelligent valve can be achieved according to needs, universality of an independent valve is improved, and the purpose of the valve does not need to be known in advance.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, and specifically provides an independent valve. Background Art

[0002] Valves are widely used to regulate and control fluids such as water, gas, and oil. As the times progress, market demand is gradually shifting from traditional mechanical valves to intelligent valves with electronically controlled switches. However, the valve type must be determined before production and cannot be changed later.

[0003] However, valve users often fail to clearly define the application scenarios and functional requirements of valves before they are deployed. Some applications require both mechanical and intelligent valves. Current valves are fixed, pre-installed valves with no option to change valve type. This creates significant inconvenience during installation, often requiring rework due to incorrect valve type installation. Utility Model Content

[0004] In order to solve the problem in the prior art that valve types cannot be switched, the utility model provides an independent valve that can realize arbitrary switching between mechanical valves and intelligent valves as needed, thereby improving the versatility of the independent valve, eliminating the need to know the purpose of the valve in advance and requiring no complicated construction operations.

[0005] The specific solutions of the present utility model are as follows.

[0006] An independent valve includes a valve body, a valve seat is provided on the valve body, a valve stem is fixedly provided at the center position of the valve seat, and the valve stem is outer-circuited with a fixed seat fixedly connected to the valve seat. The independent valve also includes a valve cover and a control device that can be sleeved outside the valve stem and fixedly connected to the fixed seat.

[0007] The valve seat and the valve body are integrally formed, and the valve body can be of various types such as ball valve, butterfly valve, gate valve, stop valve, etc. Depending on the construction requirements, the valve body can be fixed or telescopic. The valve cover and the control device cannot be fixedly connected to the fixed seat at the same time. When the valve cover is fixedly connected to the fixed seat, the independent valve is a mechanical valve. When the control device is fixedly connected to the fixed seat, the independent valve is an intelligent valve. The independent valve of the utility model can realize the arbitrary switching between mechanical valve and intelligent valve as needed. When the independent valve is a mechanical valve, the valve cover is removed from the fixed seat and the control device is installed on the fixed seat, that is, the switching of the independent valve from a mechanical valve to an intelligent valve is realized. When the independent valve is an intelligent valve, the control device is removed from the fixed seat and the valve cover is installed on the fixed seat, that is, the switching of the independent valve from an intelligent valve to a mechanical valve is realized. There is no need for a complete replacement, which reduces the construction difficulty and procurement and maintenance costs. In addition, the production, stocking, maintenance and recycling of the control device are extremely convenient.

[0008] Preferably, the valve seat is fixedly provided with a positioning round platform at the bottom of the valve stem, the valve seat is evenly provided with valve seat screw holes around the positioning round platform, and the top of the valve stem is provided with a valve stem key. There are four valve seat screw holes, evenly distributed around the valve seat.

[0009] Preferably, a center hole with an inner diameter larger than the diameter of the valve stem is provided at the center position of the fixing seat, a positioning step hole adapted to the positioning frustum is provided at the bottom of the center hole, machine screw step holes adapted to the valve seat screw holes are provided around the positioning step hole, a fastening machine screw passes through the machine screw step hole and is embedded in the valve seat screw hole to fix the fixing seat and the valve seat; the fixing seat is provided with two positioning bosses in the fluid direction, a conformal material reducing groove is provided at the bottom of the positioning boss, and inclined clamping platforms are evenly provided on the sides of the fixing seat.

[0010] The fixing seat is an integrated structure made of metal or plastic. There are four machine screw step holes, which are evenly distributed on the fixing seat in a circle and correspond one to one with the valve seat screw holes. The conformal material reduction groove can reduce material loss and reduce the shrinkage marks caused by injection molding. There are four inclined clamping platforms, which are evenly distributed on the side of the fixing seat in a circle. The inclined clamping platforms are provided with guide bevels to facilitate the insertion of the buckle. The fixing seat and the valve cover or control device are connected by a snap-on connection and can be operated with one hand, so that the mechanical valve and the intelligent valve can be switched at will.

[0011] Preferably, a central limiting hole wrapping the cylindrical surface of the valve stem is provided at the top inner of the valve cover, inner cards are evenly provided inside the valve cover, and card slots adapted to the inclined card platform are provided on the inner cards. Valve cover notches adapted to the positioning bosses are provided in the middle of adjacent inner cards, the corners of the valve cover notches are rounded, and outer skirts are provided on the outer sides of the inner cards.

[0012] There are four inner clips, evenly distributed around the valve housing. The four slots correspond to the four beveled slots, securing the valve housing to the mounting base via a snap-fit ​​connection. The corners of the notch in the valve housing are rounded to prevent injection stress concentration and the resulting loss of elasticity. The outer skirt surrounding the inner clips serves not only as a decorative feature but also prevents the inner clips from being easily pried off from the outside, potentially causing the valve housing to fall off.

[0013] Preferably, a valve handle is further provided, which includes a Z-shaped handle, the gripping end of which is covered with a rubber-plastic body, and the other end of which is provided with a handle groove adapted to the valve stem key, and the valve cover is provided with a valve handle groove adapted to the valve handle.

[0014] First, insert the valve handle into the valve handle slot on the valve housing. Then, insert the valve stem key into the valve handle slot and the center stopper hole of the valve housing, sequentially, to complete the valve handle assembly. At this point, the lower surface of the center stopper hole aligns with the upper surface of the Z-shaped handle, and the inner hole of the center stopper hole wraps around the cylindrical surface of the valve stem, allowing the valve handle to rotate only horizontally. The length of the valve handle slot is one-quarter the circumference of the valve housing side. Due to the limiting effect of the valve handle slot, the valve handle can only rotate within a 90° range, that is, from fully open to fully closed.

[0015] Preferably, the control device includes a control seat and a control cover, a valve stem groove is provided on the valve stem, a valve stem O-ring is sleeved in the valve stem groove, a valve stem hole column adapted to the valve stem is provided at the bottom of the control seat, support ribs are provided around the valve stem hole column, an arc-shaped clip adapted to the inclined clamping platform is provided on the support rib, and a positioning groove adapted to the positioning boss is provided in the middle of adjacent support ribs.

[0016] Four arc-shaped clips are evenly distributed around the circumference, corresponding one to each of the four inclined platforms. The arc-shaped clips and the inclined platforms securely connect the control device to the mounting base. The positioning slots on the control base facilitate closed-eye alignment of the control device within a limited space.

[0017] Preferably, the control seat is provided with a battery compartment for accommodating batteries and a reducer gear shaft hole for assembling the reducer assembly. The control seat is also provided with an inner retaining wall above the reducer assembly, and the inner retaining wall is provided with a circuit board lower retaining wall and a circuit board upper clamp for assembling the circuit board.

[0018] The reducer assembly includes a gear train, a motor, and a plastic housing that encloses the gear train and motor. The control base's circuit board lower guard is designed with ribs to minimize contact with components on the circuit board, ensuring efficient use of the circuit board surface. The control base's lower guard and upper clamping structure secure the circuit board without screws, reducing the number of parts and improving production efficiency.

[0019] Preferably, a sealing groove is provided on the top of the control seat, a sealing ring is provided in the sealing groove, a self-tapping screw step hole is provided outside the sealing groove, a sealing pressure rib adapted to the sealing groove is provided on the bottom of the control cover, a screw hole is provided outside the sealing pressure rib, a fastening self-tapping screw is passed through the self-tapping screw step hole and embedded in the screw hole to fix the control seat and the control cover, a conformal anti-shrinkage hole is provided next to the self-tapping screw step hole, and a material reduction anti-shrinkage hole is provided next to the screw hole.

[0020] The sealing groove is located at the top edge of the control base. Four self-tapping screw stepped holes are provided at the top corners of the control base. Four screw holes are also provided at the top corners of the control cover. The sealing rib is aligned with the sealing groove. The four self-tapping screw stepped holes on the control base are aligned with the four screw holes on the control cover. Tightening the self-tapping screws securely compresses the sealing ring, achieving a sealed connection between the control base and the control cover. The provision of the conformal anti-shrinkage holes and the material-reducing anti-shrinkage holes reduces material loss and minimizes shrinkage marks caused by injection molding.

[0021] Preferably, the control cover is also connected to a battery threaded cover, the control cover is provided with a connecting internal thread, the bottom of the connecting internal thread is provided with an O-ring groove for accommodating a battery O-ring, the battery threaded cover is provided with a connecting external thread with a threaded pressure ring at the bottom, and a battery end cover is provided between the threaded pressure ring and the battery O-ring.

[0022] The battery threaded cover is located directly above the battery compartment. The setting of the battery end cover avoids the situation where the sealing ring is wrinkled when the thread is rotated, thereby causing the seal to fail. The design of the detachable battery threaded cover and O-ring seal makes it convenient to replace the battery during the battery exhaustion warning stage, while ensuring that the battery's waterproof performance is not reduced.

[0023] Preferably, a window hole for assembling a transparent window is provided on the cover plane of the control cover, and an assembly hole for assembling lead seal beans is provided on the battery threaded cover, and the assembly holes are distributed in a regular triangular shape.

[0024] The control cover's flat surface is designed to provide ample space for laser engraving or printing of product information. The transparent window is assembled within the designated window opening via ultrasonic welding or secondary injection molding. The lead seal bead has an interference fit within the assembly hole, ensuring it's disposable and preventing the battery's threaded cap from being tampered with without the need for additional seals. The assembly holes are arranged in a regular triangular pattern, significantly reducing the risk of damage or disassembly.

[0025] Therefore, the utility model has the following beneficial effects:

[0026] (1) The utility model can realize the arbitrary switching between the mechanical valve and the intelligent valve as needed through the snap-on connection between the valve cover and the control device and the fixed seat, without the need for a complete replacement, thereby improving the versatility of the independent valve, eliminating the need to know the purpose of the valve in advance, and eliminating complicated construction operations. In addition, the production, stocking, maintenance and recycling of the control device are extremely convenient;

[0027] (2) The structural design of the battery threaded cover of the control device makes it easy to replace the battery during the battery exhaustion warning stage of the independent valve, while also ensuring the reliability of the waterproof performance; the circuit board lower block and circuit board upper clamp structure of the control seat realize the fixation of the circuit board without screws, reducing the required parts and improving production efficiency; the positioning groove design of the control seat facilitates the closed-eye alignment installation of the control device in a limited space;

[0028] (3) An outer skirt is provided outside the inner card of the valve cover to prevent the valve cover from falling off due to easy prying of the inner card from the outside, thereby enhancing the connection reliability between the valve cover and the fixed seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0030] Figure 1 This is a partial sectional view of an independent valve on the axial side of the utility model.

[0031] Figure 2 This is a structural schematic diagram of an independent valve of the present utility model.

[0032] Figure 3 This is a structural schematic diagram of a valve body of an independent valve of the present utility model.

[0033] Figure 4 This is a cross-sectional view of a fixing seat of an independent valve of the present utility model.

[0034] Figure 5 This is a structural schematic diagram of a valve cover of an independent valve of the present utility model.

[0035] Figure 6 This is a cross-sectional view of a valve cover of an independent valve of the present invention.

[0036] Figure 7 This is a cross-sectional view of a control device for an independent valve according to the present invention.

[0037] Figure 8 This is a top view of a control device for an independent valve according to the present invention.

[0038] Figure 9 This is a schematic diagram of the structure of a control seat of an independent valve of the utility model Figure 1 .

[0039] Figure 10 This is a schematic diagram of the structure of a control seat of an independent valve of the utility model Figure 2 .

[0040] Figure 11 This is a cross-sectional view of a control cover of an independent valve of the present invention.

[0041] Figure 12 This is a cross-sectional view of a battery threaded cover with an independent valve according to the present invention.

[0042] In the figure: 1, valve body, 11, valve seat, 111, positioning round table, 112, valve seat screw hole, 12, valve stem, 121, valve stem groove, 122, valve stem key, 13, valve stem O-ring, 2, fixed seat, 21, center hole, 22, positioning step hole, 23, inclined clamping table, 24, positioning boss, 25, machine screw step hole, 26, follow-up material reduction groove, 3, valve cover, 31, valve handle groove, 32, Outer skirt, 33, inner card, 34, card slot, 35, center limit hole, 36, valve cover notch, 37, small fillet, 4, valve handle, 41, Z-shaped handle, 42, rubber body, 43, handle slot, 5, fastening machine screw, 6, control device, 61, control seat, 6101, inner retaining wall, 6102, sealing groove, 6103, reducer gear shaft hole, 6104, circuit board lower retaining, 61 05. Circuit board upper card, 6106. Self-tapping screw step hole, 6107. Battery compartment, 6108. Conformal anti-shrinkage hole, 6109. Arc buckle, 6110. Support rib, 6111. Valve stem hole column, 6112. Positioning groove, 62. Circuit board, 63. Control cover, 6301. Connecting internal thread, 6302. O-ring groove, 6303. Setting window hole, 6304. Sealing pressure rib, 6305. Screw hole, 6306. Material reduction anti-shrinkage hole, 6307. Cover plane, 64. Battery thread cover, 6401. Connecting external thread, 6402. Thread pressure ring, 6403. Assembly hole, 65. Battery O-ring, 66. Battery end cover, 67. Sealing ring, 68. Battery, 69. Reducer assembly, 610. Transparent window, 611. Lead sealing bean, 612. Tightening self-tapping screws. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] like Figure 1 The figure shows a partial sectional view of an independent valve of the present invention. Figure 2 The figure shows the structure of an independent valve of the present invention. The independent valve can realize the switching between mechanical valve and intelligent valve as needed. Figure 1This is the structure of an independent valve when it is a mechanical valve. The mechanical valve mainly consists of a valve body 1, a fixed seat 2, fastening mechanical screws 5, a valve cover 3, and a valve handle 4. The valve body 1 is provided with a valve stem 12. The fixed seat 2 is sleeved on the valve stem 12 and is installed on the valve body 1 by fastening the mechanical screws 5. The valve cover 3 is fixedly connected to the fixed seat 2. The valve handle 4 includes a Z-shaped handle 41. The grip end of the Z-shaped handle 41 is covered with a rubber body 42, and the other end is provided with a handle groove 43. Figure 2 This is the structure when the independent valve is a smart valve. The smart valve is mainly composed of a valve body 1, a fixing seat 2, a fastening machine screw 5 and a control device 6. When the control device 6 is fixedly connected to the fixing seat 2, the independent valve is a smart valve.

[0045] like Figure 3 The figure shows a schematic structural diagram of the valve body of an independent valve of the present invention. A valve seat 11 is provided on the valve body 1. The valve seat 11 and the valve body 1 are integrally formed. The valve body 1 can be of various types such as a ball valve, a butterfly valve, a gate valve, and a stop valve. Depending on the construction requirements, the valve body 1 can be of a fixed or telescopic type. A valve stem 12 is fixedly provided at the center of the valve seat 11. A positioning boss 111 is fixedly provided on the valve seat 11 at the bottom of the valve stem 12. Valve seat screw holes 112 are evenly provided on the valve seat 11 around the positioning boss 111. There are four valve seat screw holes 112 in total, which are evenly distributed on the valve seat 11 in a circular pattern. A valve stem key 122 is provided on the top of the valve stem 12. A valve stem groove 121 is provided on the valve stem 12 below the valve stem key 122. A valve stem O-ring 13 is sleeved in the valve stem groove 121.

[0046] like Figure 4 The figure shows a cross-sectional view of a fixed seat of an independent valve of the present invention. The valve stem 12 is covered with a fixed seat 2 fixedly connected to the valve seat 11. The fixed seat 2 is an integrated structure made of metal or plastic. A center hole 21 with an inner diameter larger than the diameter of the valve stem 12 is provided at the center. A positioning step hole 22 with an inner diameter larger than the diameter of the valve stem 12 is provided at the bottom of the center hole 21. A machine screw step hole 25 is provided around the positioning step hole 22 to match the valve seat screw hole 112. There are four machine screw step holes 25, which are evenly distributed on the fixed seat 2 in a circular pattern and correspond one to one with the valve seat screw holes 112. The fastening machine screw 5 passes through the machine screw step hole 25 and is embedded in the valve seat screw hole 112. 12, fixedly connect the fixed seat 2 and the valve seat 11; the fixed seat 2 is provided with two positioning bosses 24 in the fluid direction, and the bottom of the positioning boss 24 is provided with a conformal material reduction groove 26, which can reduce material loss and reduce the shrinkage marks caused by injection molding; the side of the fixed seat 2 is evenly provided with inclined clamping platforms 23, and there are four inclined clamping platforms 23, which are evenly distributed on the side of the fixed seat 2 in a circle. The inclined clamping platforms 23 are provided with guide bevels to facilitate the insertion of the buckle. The fixed seat 2 and the valve cover 3 or the control device 6 are snap-fit ​​connection, which can be operated with one hand, so that the mechanical valve and the intelligent valve can be switched at will.

[0047] like Figure 5The figure shows a schematic diagram of the structure of a valve cover of an independent valve of the present invention. Figure 6 The figure shows a cross-sectional view of the valve housing of an independent valve according to the present invention. A central limiting hole 35 is provided at the top of the valve housing 3, enclosing the cylindrical surface of the valve stem 12. Internal latches 33 are evenly distributed within the valve housing 3. Four internal latches 33 are provided, evenly distributed around the circumference of the valve housing 3. Each internal latch 33 is provided with a latch slot 34 that mates with the inclined latch platform 23. The four latch slots 34 correspond one-to-one with the four inclined latch platforms 23. The snap-fit ​​connection between the internal latches 33 and the inclined latch platforms 23 secures the valve housing 3 to the fixed seat 2. Valve housing notches 36 mate with the positioning bosses 24, and the corners of the valve housing notches 36 are rounded. The small fillets 37 at the corners of the valve housing notches 36 prevent injection stress concentration that could cause the internal latches 33 to lose their elasticity. An outer skirt 32 is provided on the outside of the internal latches 33, which serves not only as a decoration but also prevents the internal latches 33 from being easily pried from the outside and causing the valve housing 3 to fall off.

[0048] The valve housing 3 also features a valve handle slot 31 that mates with the valve handle 4. Its length is one-quarter the circumference of the valve housing 3's side surface. The valve handle slot 43 on the valve handle 4 mates with the valve stem key 122. First, insert the valve handle 4 into the valve handle slot 31 on the valve housing 3. Then, insert the valve stem key 122 sequentially into the valve handle slot 43 and the center stopper hole 35 of the valve housing 3 to complete assembly of the valve handle 4. At this point, the lower surface of the center stopper hole 35 aligns with the upper surface of the Z-shaped handle 41, and the inner hole of the center stopper hole 35 wraps around the cylindrical surface of the valve stem, allowing the valve handle 4 to rotate only horizontally. Due to the limiting effect of the valve handle slot 31, the valve handle 4 can only rotate within a 90° range, that is, from fully open to fully closed.

[0049] like Figure 7 The figure shows a cross-sectional view of a control device for an independent valve of the present invention. Figure 8 The figure shows a top view of a control device for an independent valve according to the present invention. The control device 6 comprises a control base 61 and a control cover 63. The control base 61 houses a battery 68, a reducer assembly 69, and a circuit board 62. The reducer assembly 69 comprises a gear train, a motor, and a plastic housing that encloses the gear train and motor. Connected to the control cover 63 is a battery threaded cap 64, which is fitted with three lead seals 611 arranged in a regular triangular pattern. The control cover 63 also features a transparent window 610. The design of the cover surface 6307 ensures ample space for laser engraving or printing of product information.

[0050] like Figure 9 The figure shows the structure of a control seat of an independent valve of the present invention. Figure 1The control base 61 is provided with a battery compartment 6107 for accommodating the battery 68 and a reducer gear shaft hole 6103 for assembling the reducer assembly 69. The control base 61 is also provided with an inner retaining wall 6101 above the reducer assembly 69. The inner retaining wall 6101 is provided with a circuit board lower retaining wall 6104 and a circuit board upper retaining wall 6105 for assembling the circuit board 62. The circuit board lower retaining wall 6104 is designed as a rib structure to minimize contact with components on the circuit board 62 and ensure efficient use of the plane of the circuit board 62. The circuit board lower retaining wall 6104 and the circuit board upper retaining wall 6105 provided on the control base 61 enable the circuit board 62 to be fixed without screws, reducing the number of required parts and improving production efficiency.

[0051] A sealing groove 6102 is provided at the top edge of the control seat 61, a sealing ring 67 is provided inside the sealing groove 6102, and a self-tapping screw step hole 6106 is provided outside the sealing groove 6102. There are four self-tapping screw step holes 6106 in total, which are located at the top corners of the control seat 61. A conformal anti-shrinkage hole 6108 is provided next to the self-tapping screw step hole 6106, which can reduce material loss and reduce shrinkage marks caused by injection molding.

[0052] like Figure 10 The figure shows the structure of a control seat of an independent valve of the present invention. Figure 2 The bottom of the control seat 61 is provided with a valve stem hole column 6111 that adapts to the valve stem 12. Support ribs 6110 are provided around the valve stem hole column 6111. The support ribs 6110 are provided with arc-shaped clips 6109 that adapt to the inclined surface clamping platform 23. There are four arc-shaped clips 6109, evenly distributed around the circumference, corresponding one-to-one to the four inclined surface clamping platforms 23. The snap-fit ​​connection between the arc-shaped clips 6109 and the inclined surface clamping platforms 23 realizes the fixed connection between the control device 6 and the fixed seat 2. Positioning grooves 6112 that adapt to the positioning bosses 24 are provided between adjacent support ribs 6110, facilitating the closed-eye alignment installation of the control device 6 in a limited space.

[0053] like Figure 11The figure shows a cross-sectional view of a control cover for an independent valve according to the present invention. A sealing rib 6304 is provided at the bottom of the control cover 63, adapted to the sealing groove 6102. Screw holes 6305 are provided on the outside of the sealing rib 6304. Four screw holes 6305 are provided, located at the top corners of the control cover 63. Tightening self-tapping screws 612 pass through the self-tapping screw stepped holes 6106 and engage the screw holes 6305, securing the control seat 61 and the control cover 63. A material reduction and shrinkage prevention hole 6306 is provided next to the screw holes 6305, which reduces material loss and shrinkage marks caused by injection molding. The sealing rib 6304 is aligned with the sealing groove 6102. The four self-tapping screw stepped holes 6106 on the control seat 61 are aligned with the four screw holes 6305 on the control cover 63. Tightening the self-tapping screws 612 compresses the sealing rib 6304 against the sealing ring 67, achieving a sealed connection between the control seat 61 and the control cover 63. A window hole 6303 for assembling the transparent window 610 is provided on the cover plane 6307 of the control cover 63 . The transparent window 610 is assembled in the window hole 6303 by ultrasonic welding or secondary injection molding.

[0054] The control cover 63 is also connected to a battery thread cover 64, which is located just above the battery compartment 6107. The control cover 63 is provided with a connecting internal thread 6301, and an O-ring 65 for accommodating the battery O-ring is provided at the bottom of the connecting internal thread 6301. Figure 12 The figure shows a cross-sectional view of a battery threaded cap with an independent valve according to the present invention. The battery threaded cap 64 is provided with an external connecting thread 6401 with a threaded pressure ring 6402 at the bottom. A battery end cap 66 is provided between the threaded pressure ring 6402 and the battery O-ring 65. The provision of the battery end cap 66 prevents the sealing ring from wrinkling during thread rotation, which could lead to seal failure. The removable battery threaded cap 64 and O-ring seal design facilitate battery replacement during the battery depletion warning stage while ensuring that the battery's waterproof performance is not compromised. The battery threaded cap 64 is provided with assembly holes 6403 for mounting lead sealing beans 611. The assembly holes 6403 are arranged in a regular triangular pattern, significantly reducing the possibility of arbitrary damage and disassembly of the battery threaded cap 64. The lead sealing beans 611 are an interference fit with the assembly holes 6403, ensuring that the lead sealing beans 611 are disposable, and the battery threaded cap 64 is made tamper-proof without the need for additional seals.

[0055] The valve cover 3 and the control device 6 cannot be fixedly connected to the fixed seat 2 at the same time. When the valve cover 3 is fixedly connected to the fixed seat 2, the independent valve is a mechanical valve. When the control device 6 is fixedly connected to the fixed seat 2, the independent valve is an intelligent valve. The independent valve of the utility model can realize arbitrary switching between mechanical valve and intelligent valve as needed. When the independent valve is a mechanical valve, the valve cover 3 is removed from the fixed seat 2, and the control device 6 is installed on the fixed seat 2, that is, the switching of the independent valve from a mechanical valve to an intelligent valve is realized. When the independent valve is an intelligent valve, the control device 6 is removed from the fixed seat 2, and the valve cover 3 is installed on the fixed seat 2, that is, the switching of the independent valve from an intelligent valve to a mechanical valve is realized. There is no need for comprehensive replacement, which reduces construction difficulty and procurement and maintenance costs, and the production, stocking, maintenance and recycling of the control device 6 are extremely convenient.

[0056] The assembly process of the independent valve is as follows.

[0057] Install the valve stem 12 into the valve body 1 and insert the valve stem O-ring 13 into the valve stem groove 121 of the valve stem 12. Then, insert the center hole 21 of the fixing seat 2 into the valve stem 12, so that the positioning step hole 22 is completely aligned with the positioning round plate 111 and the machine screw step hole 25 is aligned with the valve seat screw hole 112. Finally, tighten the fixing seat 2 to the valve seat 11 with the machine screw 5. By default, the line connecting the two positioning bosses 24 of the fixing seat 2 is consistent with the fluid flow direction.

[0058] The reducer gear train and motor are installed on the reducer gear shaft hole 6103 of the control seat 61, and are covered with a plastic shell for protection, and then sealed with sealant. After the glue solidifies, the battery is installed in the battery compartment 6107, and then the circuit board 62 is clamped on the circuit board upper clamp 6105 and pressed against the circuit board lower block 6104, and the wiring of the motor and battery is connected to the circuit board 62. A sealing ring 67 is placed in the sealing groove 6102, and the transparent window 610 is ultrasonically welded or secondary injection molded in the window hole 6303. Further, the sealing rib 6304 is aligned with the sealing groove 6102, and the control cover 63 is installed into the inner block wall 6101 of the control seat 61. At this time, the screw hole 6305 is aligned with the self-tapping screw step hole 6106. Tighten the self-tapping screw 612 through the self-tapping screw step hole 6106 and screw it into the screw hole 6305 until the sealing rib 6304 compresses the sealing ring 67, leaving only a decorative gap between the control cover 63 and the control base 61. Place the battery O-ring 65 in the O-ring groove 6302, and place the battery end cap 66 over the battery O-ring 65. Using a dedicated tool, slowly screw the battery threaded cap 64 into the connecting internal thread 6301, allowing the threaded pressure ring 6402 to push the battery end cap 66 against the battery O-ring 65, deforming it until it stops. Finally, install the lead seal bean 611 into the assembly hole 6403 with an interference fit, ensuring that the lead seal bean 611 does not protrude above the cover surface 6307. This completes the assembly of the control device 6.

[0059] To assemble the mechanical valve, first insert the handle groove 43 of the Z-shaped handle 41 into the valve handle groove 31. Then, align the valve cover notch 36 with the positioning boss 24, the handle groove 43, and the valve stem key 122. The card slot 34 on the inner card 33 snaps into the inclined card platform 23. At this point, the lower surface of the center limit hole 35 aligns with the upper surface of the Z-shaped handle 41, and the center limit inner hole wraps around the cylindrical surface of the valve stem 12, allowing the valve handle 4 to rotate only horizontally. Due to the limiting effect of the valve handle groove 31, the valve handle 4 can only rotate within a 90° range, that is, from fully open to fully closed.

[0060] When it is necessary to assemble the smart valve, align the inner hole of the valve stem hole column 6111 with the valve stem 12 and slowly install it into the control device 6. After the positioning groove 6112 is aligned with the positioning boss 24, the arc-shaped buckle 6109 is completely hooked on the inclined clamping platform 23. The valve stem O-ring 13 is completely squeezed by the inner hole of the valve stem hole column 6111 to play a sealing role.

[0061] When the valve type needs to be replaced on site, such as when a mechanical valve is to be intelligently modified, the inner card 33 and the card slot 34 are first forcefully destroyed to disable the buckle. Then the valve cover 3 and the valve handle 4 are removed as a whole, and the control device 6 is installed according to the steps for assembling the intelligent valve.

[0062] When the smart valve needs to be converted into a mechanical valve, the steps are the same as above. First, the support rib 6110 and the arc-shaped buckle 6109 are forcibly destroyed to render the buckle inoperable. Then, the control device 6 is completely removed and the valve cover 3 and valve handle 4 are installed according to the steps for assembling a mechanical valve.

[0063] The utility model can realize the arbitrary switching between mechanical valve and intelligent valve as needed through the snap-on connection of the valve cover 3 and the control device 6 with the fixed seat 2, without the need for comprehensive replacement, thereby improving the versatility of the independent valve, eliminating the need to know the purpose of the valve in advance, and requiring no complicated construction operations, and the production, stocking, maintenance and recycling of the control device 6 are extremely convenient; the structural design of the battery threaded cover 64 of the control device 6 makes it convenient to replace the battery of the independent valve during the battery exhaustion warning stage, while also ensuring the reliability of the waterproof performance; the circuit board lower block 6104 and the circuit board upper card 6105 structure of the control seat 61 realize the fixing of the circuit board 62 without screws, reducing the required parts and improving production efficiency; the positioning groove 6112 design of the control seat 61 facilitates the closed-eye alignment installation of the control device 6 in a limited space; an outer skirt 32 is provided outside the inner card 33 of the valve cover 3 to prevent the inner card 33 from being easily pried from the outside and causing the valve cover 3 to fall off, thereby enhancing the connection reliability between the valve cover 3 and the fixed seat 2.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural transformation made to the above embodiment based on the technical essence of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An independent valve, comprising a valve body, characterized in that: The valve body is provided with a valve seat, a valve stem is fixedly provided at the center of the valve seat, and the valve stem is covered with a fixing seat fixedly connected to the valve seat. The independent valve further includes a valve cover and a control device that can be covered outside the valve stem and fixedly connected to the fixing seat. A positioning round platform is fixedly provided on the valve seat at the bottom of the valve stem, valve seat screw holes are evenly provided on the valve seat around the positioning round platform, and a valve stem key is provided on the top of the valve stem.

2. An independent valve according to claim 1, characterized in that: A center hole with an inner diameter larger than the valve stem diameter is provided at the center position of the fixing seat, a positioning step hole adapted to the positioning frustum is provided at the bottom of the center hole, machine screw step holes adapted to the valve seat screw holes are provided around the positioning step hole, a fastening machine screw passes through the machine screw step hole and is embedded in the valve seat screw hole to fix the fixing seat and the valve seat; the fixing seat is provided with two positioning bosses in the fluid direction, a conformal material reducing groove is provided at the bottom of the positioning boss, and inclined clamping platforms are evenly provided on the sides of the fixing seat.

3. An independent valve according to claim 2, characterized in that: A central limiting hole wrapping the cylindrical surface of the valve stem is provided at the top of the valve cover, inner cards are evenly arranged inside the valve cover, and card slots adapted to the inclined card platform are provided on the inner cards. A valve cover notch adapted to the positioning boss is provided in the middle of adjacent inner cards, the corners of the valve cover notch are rounded, and an outer skirt is provided on the outer side of the inner card.

4. An independent valve according to claim 1, 2 or 3, characterized in that: A valve handle is also provided, which includes a Z-shaped handle. The gripping end of the Z-shaped handle is covered with a rubber-plastic body, and the other end is provided with a handle groove adapted to the valve stem key. The valve cover is provided with a valve handle groove adapted to the valve handle.

5. An independent valve according to claim 2, characterized in that: The control device includes a control seat and a control cover, a valve stem groove is provided on the valve stem, a valve stem O-ring is sleeved in the valve stem groove, a valve stem hole column adapted to the valve stem is provided at the bottom of the control seat, support ribs are provided around the valve stem hole column, an arc-shaped clip adapted to the inclined clamping platform is provided on the support rib, and a positioning groove adapted to the positioning boss is provided in the middle of adjacent support ribs.

6. An independent valve according to claim 5, characterized in that: The control seat is provided with a battery compartment for accommodating batteries and a reducer gear shaft hole for assembling the reducer assembly. The control seat is also provided with an inner retaining wall above the reducer assembly, and the inner retaining wall is provided with a circuit board lower retaining wall and a circuit board upper clamp for assembling the circuit board.

7. An independent valve according to claim 6, characterized in that: A sealing groove is provided on the top of the control seat, a sealing ring is provided in the sealing groove, a self-tapping screw step hole is provided outside the sealing groove, a sealing pressure rib adapted to the sealing groove is provided at the bottom of the control cover, a screw hole is provided outside the sealing pressure rib, a fastening self-tapping screw is passed through the self-tapping screw step hole and embedded in the screw hole to fix the control seat and the control cover, a conformal anti-shrinkage hole is provided next to the self-tapping screw step hole, and a material reduction anti-shrinkage hole is provided next to the screw hole.

8. An independent valve according to claim 6, characterized in that: The control cover is also connected to a battery threaded cover, which is provided with a connecting internal thread. The bottom of the connecting internal thread is provided with an O-ring groove for accommodating a battery O-ring. The battery threaded cover is provided with a connecting external thread with a threaded pressure ring at the bottom. A battery end cover is provided between the threaded pressure ring and the battery O-ring.

9. An independent valve according to claim 8, characterized in that: A window hole for assembling a transparent window is provided on the cover plane of the control cover, and an assembly hole for assembling a lead seal bean is provided on the battery threaded cover, and the assembly holes are distributed in a regular triangle.

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