Valve core of manual and electric dual-purpose stop valve

Abstract

The utility model relates to the technical field of valve cores, in particular to a manual and electric dual-purpose stop valve core, which comprises a valve cover, a valve rod sleeve, a valve rod, a lifting rod and a valve plug, a driving column is fixed at the upper end of the valve rod, a driven gear and a rotary handle are sleeved on the driving column, the rotary handle is positioned above the driven gear, and a motor device is fixed above the valve cover. A driving gear is fixed to an output shaft of the motor device and meshed with the driven gear. When the rotary handle is pressed downwards, the driven gear can be driven to move downwards to the valve rod, and in the process, the driven gear and the driving gear are always kept in an engaged state. The manual and electric dual-purpose stop valve element has an automatic regulation and control function, overcomes the defect that an existing stop valve can only be manually regulated, is more convenient to use, can remarkably improve water use safety, retains the manual regulation function, has good flexibility and supportability, and is ingenious and reasonable in transmission matching structure, easy to implement and suitable for popularization and application. Meanwhile, the device has the advantages of being convenient to install and easy to maintain, and has wide application prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve core, especially a hand-operated and electric dual-purpose stop valve valve core. BACKGROUND

[0002] The stop valve used in the household water supply pipeline is usually composed of a valve body made of PPR material and a valve core for regulating the on-off state of the valve body, which has the technical advantages of simple structure, low cost, convenient installation and easy maintenance, and has an irreplaceable position in the application of the household water supply pipeline. At present, the commonly used stop valve in the household water supply pipeline is generally designed manually, which has a single function and cannot realize automatic adjustment and remote control, obviously lagging behind the overall rapid development trend of smart home, and is difficult to meet the actual needs of people. In the design of the household water supply pipeline, the valve is usually installed in a relatively concealed position, and when manually adjusted, it is often very inconvenient to operate due to space obstacles. SUMMARY

[0003] To solve the problems existing in the prior art, the utility model provides a hand-operated and electric dual-purpose stop valve valve core which is scientific and reasonable in structure, convenient and fast to install, and suitable for commonly used lifting stop valves in household water supply pipelines.

[0004] To achieve the above technical purposes, the utility model adopts the following technical scheme:

[0005] A hand-operated and electric dual-purpose stop valve valve core, comprising a valve cover, a valve rod sleeve is arranged on the valve cover, a valve rod is arranged in the valve rod sleeve, and the upper end of the valve rod extends above the valve rod sleeve; a lifting rod is defined in the valve cover, the lower end of the valve rod extends into the lifting rod and is threadedly connected with the lifting rod, and a valve plug is fixed to the lower end of the lifting rod; characterized in that: the upper end of the valve rod is fixedly connected with a driving column, a driven gear and a rotating handle which can slide up and down on the driving column but cannot rotate relative to the driving column are sleeved on the driving column, the rotating handle is located above the driven gear, a top cap for preventing the rotating handle from slipping off is fixed to the upper end of the driving column, a guide ring is fixedly connected to the lower side of the driven gear, the guide ring is sleeved on the valve rod, and a return spring for driving the guide ring to move upward is arranged on the valve rod; the central axes of the driven gear, the guide ring and the valve rod coincide; an electric motor device is fixed above the valve cover, a driving gear is fixed to the output shaft of the electric motor device, and the driving gear is engaged with the driven gear; the rotating handle can be pressed downward to drive the driven gear to move downward on the valve rod, and the driven gear and the driving gear always remain in engagement during the process.

[0006] In a preferred embodiment, the cross section of the driving column is a square, and the side length of the square is equal to the outer diameter of the valve rod.

[0007] In a preferred embodiment, an electric motor seat is fixedly connected to the valve rod sleeve, and the electric motor device is fixed to the electric motor seat.

[0008] In a preferred embodiment, the upper end of the valve stem is provided with a square head, a screw hole is formed in the upper end face of the square head, a square hole matched with the square head is formed in the driving column, and a screw rod extending downward is fixed to the lower end of the top cap and is threadedly connected with the screw hole.

[0009] In a preferred embodiment, a sliding sleeve is fixed to the rotating handle, the sliding sleeve is in sliding cooperation with the driving column, and the lower end of the sliding sleeve abuts against the driven gear.

[0010] In a preferred embodiment, the motor device is provided with an adjusting key.

[0011] Compared with the prior art, the hand-operated and electric dual-purpose stop valve core has the following beneficial technical effects:

[0012] The hand-operated and electric dual-purpose stop valve core can automatically control the working state of the stop valve, makes up for the defects that the previous stop valve can only be manually adjusted, can bring more convenience and intelligent experience to people's daily life, and can significantly improve water safety. The hand-operated and electric dual-purpose stop valve core retains the manual adjustment function and has higher protection during use. The structure of the hand-operated and electric dual-purpose stop valve core can be implemented by adding components on the basis of the existing related products, greatly improves the easy implementation of the hand-operated and electric dual-purpose stop valve core, and significantly reduces the implementation cost. In addition, the hand-operated and electric dual-purpose stop valve core is suitable for the lift stop valve commonly used on the household water supply pipeline, is easy to install and maintain, and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described in the following description only relate to some embodiments of the present application, and are not a limitation on the present application.

[0014] Figure 1 Figure 1 is a structural schematic view of the hand-operated and electric dual-purpose stop valve core.

[0015] Figure 2 Figure 2 is another structural schematic view of the hand-operated and electric dual-purpose stop valve core.

[0016] Figure 3 Figure 3 is a part exploded schematic view of the hand-operated and electric dual-purpose stop valve core.

[0017] Figure 4 Figure 4 is another part exploded schematic view of the hand-operated and electric dual-purpose stop valve core.

[0018] Figure 5It is the internal structure schematic view of the valve core of the manual and electric dual-purpose stop valve.

[0019] Figure 6 It is the state schematic view of the valve core of the manual and electric dual-purpose stop valve when manually adjusting.

[0020] In the figure: 1, valve plug, 2, lifting rod, 3, valve cover, 4, driven gear, 5, handle, 6, top cap, 7, motor device, 8, adjusting key, 9, motor seat, 10, guide ring, 11, reset spring, 12, driving gear, 13, valve rod, 14, square hole, 15, sliding sleeve, 16, screw rod, 17, driving column, 18, square head, 19, valve rod sleeve, 20, screw hole, 21, clamping spring, 22, limiting step, 23, sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Reference Figures 1-5As shown, this embodiment discloses a manual / electric dual-purpose shut-off valve core, which includes a valve cover 3. The valve cover 3 can seal with the valve body of the shut-off valve, thereby installing and fixing the device on the valve body of the shut-off valve. The valve cover 3 is provided with an upwardly extending valve stem sleeve 19. The valve stem sleeve 19 is provided with a valve stem 13. The valve stem 13 is provided with a sealing ring 23, so that the valve stem 13 and the valve stem sleeve 19 are rotatably sealed. The valve stem 13 is usually provided with a limit step 22 and a retaining spring 21 to ensure that the valve stem 13 cannot move inside the valve stem sleeve 19. The valve stem 13 moves downward, with its upper end extending above the valve stem sleeve 19. A sliding lifting rod 2 is defined within the valve cover 3, with a valve plug 1 fixed to its lower end. The lower end of the valve stem 13 extends into the lifting rod 2, and the two are threaded together. This structure is essentially the inherent structure of the valve core of an existing gate valve. Based on this structure, when the valve stem 13 is rotated, it drives the lifting rod 2 to move up and down. The lifting rod 2 adjusts the position of the valve plug 1 within the valve body by moving up and down, thereby controlling the working state of the gate valve. A vertically extending drive column 17 is fixedly connected to the upper end of the valve stem 13. A driven gear 4 and a handle 5 are fitted on the drive column 17, which can slide up and down along it but cannot rotate relative to it. The handle 5 is located above the driven gear 4. A top cap 6 is fixed to the upper end of the drive column 17 to prevent the handle 5 from slipping off its upper end. A guide ring 10 is fixedly connected to the lower side of the driven gear 4. The guide ring 10 is fitted on the valve stem 13 and can move up and down along the valve stem 13 and can rotate relative to it. A return spring 11 is fitted on the valve stem 13 to drive the guide ring 10 to move upward. The central axes of the driven gear 4, the guide ring 10 and the valve stem 13 coincide. A motor device 7 is fixed above the valve cover 3. The motor device 7 integrates a remote control module. A drive gear 12 is fixed on the output shaft of the motor device 7. The drive gear 12 meshes with the driven gear 4.

[0023] like Figure 6 As shown, when the handle 5 is pressed down, the driven gear 4 is driven by the handle 5 to overcome the thrust of the return spring 11 and move downward, eventually moving from the drive column 17 to the valve stem 13. During this process, the driven gear 4 and the drive gear 12 remain engaged. When the handle 5 is stopped, the return spring 11 applies an upward thrust to the guide ring 10, causing the driven gear 4 and the handle 5 to move upward and return to the initial position.

[0024] When the hand motor dual-purpose stop valve core is implemented, the motor device 7 can select the intelligent motor assembly with remote communication function commonly used in the prior art, so as to be adapted with mobile phones, Internet of Things boxes and other control devices, and the working state of the motor device 7 is adjusted and controlled, and the automatic adjustment and control of the working state of the stop valve are realized. Specifically, when the motor device 7 operates according to the instruction, the transmission is performed through the driving gear 12, the driven gear 4 and the driving column 17, the valve rod 13 is driven to rotate in a predetermined direction, the position of the valve plug 1 is adjusted up and down, and finally the automatic adjustment of the working state of the stop valve such as opening, closing and opening degree is realized.

[0025] Therefore, the hand motor dual-purpose stop valve core of the present application overcomes the disadvantage that the existing stop valve can only adjust the working state manually, and can bring more convenience and intelligent experience to people's daily life. For example, when adjusting the working state of the stop valve, it is not necessary to go to the installation position of the stop valve, and the operation is more convenient and fast. For example, when going out, the water supply pipeline can be closed at any time and anywhere, effectively preventing the occurrence of accidents such as water pipe rupture and leakage, and improving safety. For example, a water leakage sensor can be installed in an area where water leakage is likely to occur, and a feedback mechanism is established between the water leakage sensor and the motor device. In the event of water leakage, the water path is automatically closed to stop the loss in time.

[0026] In addition, the hand motor dual-purpose stop valve core retains the manual adjustment function to ensure the adjustability of the working state of the stop valve in actual application. Specifically, as shown in Figure 6 , when manually adjusting, the handle 5 is pressed downward to drive the driven gear 4 to move downward, so that the driven gear 4 moves downward from the driving column 17 to the valve rod 13. Thereafter, rotating the handle 5 can drive the valve rod 13 to rotate to realize manual adjustment of the working state of the stop valve. In this process, since the driven gear 4 is located on the valve rod 13, the two allow relative rotation, so the driven gear 4, the driving gear and the motor device do not hinder the rotation of the valve rod 13.

[0027] Further, as shown in Figures 3-6 , the cross section of the driving column 17 is square, and the side length of the square is equal to the outer diameter of the valve rod 13. Therefore, the movement of the driven gear 4 between the driving column 17 and the valve rod 13 is smoother, which is also conducive to improving the cooperation stability of the above-mentioned components.

[0028] Further, as shown in Figures 1-3 , the valve rod sleeve 19 is fixedly connected with a motor seat 9, and the motor device 7 is fixed on the motor seat 9, so that the motor device 7 and other components are designed in a split type, which is convenient for assembly during production and processing, and is also conducive to later maintenance and repair. After the motor seat 9, the motor device 7 and the driving gear 12 are removed, the remaining part can be used as the existing stop valve core.

[0029] Further, as shown in Figure 3 , Figure 4 , the upper end of the valve stem 13 is provided with a square head 18, a screw hole 20 is formed in the upper end face of the square head 18, a square hole 14 cooperating with the square head 18 is formed in the driving column 17, the top cap 6 is fixed with a downward extending screw rod 16, the lower end of the screw rod 16 is threadedly connected with the screw hole 20; generally, the square head 18 and the screw hole 20 in the upper end thereof are inherent parts of the existing stop valve spool, when the driving column 17 adopts this design, the structure of the stop valve spool required by the utility model can be obtained by simple assembly improvement based on the existing stop valve spool, the implementation is easier, and the processing cost is also lower.

[0030] Further, as shown in Figure 3 , Figure 5 , Figure 6 , the rotating handle 5 is fixed with a sliding sleeve 15, the sliding sleeve 15 is in sliding cooperation with the driving column 17, and the lower end of the sliding sleeve 15 abuts against the driven gear 4; thus, the setting of the sliding sleeve 15 can improve the cooperation stability of the rotating handle 5 and the driving column 17 on one hand, and on the other hand, the main body part of the rotating handle 5 and the driven gear 4 are kept a certain spacing in the up-down direction, so as to ensure that there is no spatial obstacle between the rotating handle 5 and the driving gear 12 when the rotating handle 5 is pressed to drive the driven gear 4 to be separated from the driving column 17.

[0031] Further, as shown in Figure 1 , the motor device 7 is provided with an adjusting key 8, so as to further improve the use flexibility.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meanings understood by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "including" or "containing" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. "Connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0034] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of protection of the present application.

Claims

1. A valve core for a manual / electric dual-purpose shut-off valve, comprising a valve cover, a valve stem sleeve on the valve cover, a valve stem disposed within the valve stem sleeve, the upper end of the valve stem extending above the valve stem sleeve; a lifting rod is defined within the valve cover, the lower end of the valve stem extending into the lifting rod and the two being threadedly engaged, and a valve plug is fixed to the lower end of the lifting rod; characterized in that: The upper end of the valve rod is fixedly connected with a driving column, a driven gear and a rotating handle are sleeved on the driving column and can slide up and down but cannot rotate relative to the driving column, the rotating handle is above the driven gear, the upper end of the driving column is fixed with a top cap for preventing the rotating handle from slipping off, the lower side of the driven gear is fixedly connected with a guide ring, the guide ring is sleeved on the valve rod, the valve rod is provided with a return spring for driving the guide ring to move upward, the central axes of the driven gear, the guide ring and the valve rod coincide, a motor device is fixed above the valve cover, the output shaft of the motor device is fixed with a driving gear, the driving gear is engaged with the driven gear, the rotating handle can be pressed downward to drive the driven gear to move downward to the valve rod, and the driven gear and the driving gear always keep engagement during the process.

2. The manual motorized dual service stop valve trim of claim 1, wherein: The cross section of the driving column is square, and the side length of the square is equal to the outer diameter of the valve rod.

3. The manual motorized dual service stop valve trim of claim 1, wherein: A motor seat is fixedly connected on the valve rod sleeve, and the motor device is fixed on the motor seat.

4. The manual motorized dual service stop valve trim of claim 1, wherein: The upper end of the valve rod is provided with a square head, a screw hole is formed in the upper end surface of the square head, a square hole matched with the square head is formed in the driving column, a screw rod extending downward is fixed on the lower end of the top cap, and the lower end of the screw rod is threadedly connected with the screw hole.

5. The manual motorized dual service stop valve trim of claim 1, wherein: A sliding sleeve is fixed on the rotating handle, the sliding sleeve is in sliding fit with the driving column, and the lower end of the sliding sleeve abuts against the driven gear.

6. The manual motorized dual service stop valve trim of claim 1, wherein: An adjusting key is arranged on the motor device.

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