Valve assembly

Abstract

The utility model discloses a valve assembly and relates to the technical field of valves. The valve comprises a valve body, two valve rods are rotatably inserted in the valve body, valve clacks are installed on the outer sides of the two valve rods, the two valve clacks are both installed on the inner side of the valve body, an adjusting box is installed at the top end of the valve body, and the valve rods are inserted in the adjusting box. A rotating rod is rotatably inserted into the fixing frame, circular gears are installed at the two ends of the rotating rod, crown gears are fixedly arranged on the outer sides of the two valve rods, the two circular gears are meshed with the crown gears respectively, the outer side of the rotating rod is fixedly sleeved with two worm gears, and two worms are rotatably inserted into the adjusting box; the two valve rods, the two valve clacks, the crown gear, the circular gear, the worm, the worm gear and other structures are arranged to be matched with one another, the valve body can be opened and closed through the two valve clacks, double blocking can be conducted on liquid in the valve body, and therefore the inner leakage phenomenon is avoided, and the purpose of improving the sealing performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve assembly. Background Art

[0002] A valve is a mechanical device used to control the flow of fluids (such as gases and liquids). It typically consists of a valve body, valve seat, valve disc, and a drive mechanism. Its function is to control the flow of fluids in a pipeline system by opening, closing, or regulating the flow of fluids. It is widely used in various industries such as petroleum, chemical, water treatment, and electricity. Valves come in various types, including ball valves, gate valves, and globe valves. Each valve has different structures and functions based on design principles and application requirements.

[0003] However, during the long-term use of existing equipment, there are defects such as internal leakage and external leakage of valves. External leakage of valves will affect the personal safety of inspection personnel, and internal leakage of valves will cause loss of working fluid, affecting the realization of energy-saving and consumption-reduction indicators. In addition, when the existing valves cannot be isolated during operation, they cannot be disassembled and repaired on-site during maintenance. The valves can only be cut out as a whole and returned to the factory for repair. The maintenance cycle is uncontrollable, and the valves of the drainage system need to be modified. In response to the above problems, the inventors proposed a valve assembly to solve the above problems. Utility Model Content

[0004] In order to solve the problem that valves have internal and external leakage and are inconvenient to repair, the purpose of the utility model is to provide a valve assembly.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a valve assembly includes a valve body, two valve stems are rotatably inserted in the valve body, valve discs are installed on the outside of the two valve stems, the two valve discs are both installed on the inside of the valve body, an adjusting box is installed on the top of the valve body, and the valve stem is inserted in the adjusting box; a fixing frame is fixed in the adjusting box, a rotating rod is rotatably inserted in the fixing frame, circular gears are installed at both ends of the rotating rod, crown gears are fixed on the outside of the two valve stems, the two circular gears are respectively meshed with the crown gears, two worm gears are fixed on the outside of the rotating rod, two worms are rotatably inserted in the adjusting box, the two worms are connected to the synchronous belt through a synchronous wheel, and the two worms are respectively meshed with the two worm gears.

[0006] Preferably, a No. 1 sealing ring is installed on the inner side of both ends of the valve body, a connecting ring is installed on both ends of the valve body, a No. 2 sealing ring is installed on the end of the two connecting rings away from the valve body, and mounting holes distributed in a ring array are opened on the outer side of the two connecting rings.

[0007] Preferably, an inspection plate is installed on the outside of the regulating box, and the inspection plate is installed on the outside of the regulating box by screws. Two sealing sleeves are inserted on the top of the valve body, and the two valve stems are rotatably inserted on the outside of the two sealing sleeves respectively.

[0008] Preferably, a turntable is rotatably provided at the top of the regulating box, a motor is installed at the top of the regulating box, and the end of the turntable and the output end of the motor are fixedly connected to two worms respectively.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. In the present invention, by arranging two valve stems, two valve discs, a crown gear, a circular gear, a worm and a worm wheel and other structures to cooperate with each other, the valve body can be opened and closed by the two valve discs, and the liquid in the valve body can be doubly blocked, thereby avoiding the phenomenon of internal leakage and achieving the purpose of improving the sealing performance;

[0011] 2. In the present invention, the connecting ring, No. 1 sealing ring, No. 2 sealing ring and the installation hole and other structures cooperate with each other, which can facilitate the installation and disassembly of the valve body, and avoid the situation where the valve cannot be isolated during operation and cannot be disassembled and repaired on site during maintenance. The valve can only be cut off as a whole and returned to the factory for repair. The maintenance cycle is uncontrollable, and the valves of the drainage system need to be modified to facilitate installation and replacement. At the same time, the No. 1 sealing ring and the No. 2 sealing ring can improve the sealing of the connection and avoid leakage of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a cross-sectional diagram of the adjustment box and its connection structure of the utility model;

[0016] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the figure: 1. Valve body; 11. Valve stem; 12. Valve disc; 13. Sealing sleeve; 14. Adjustment box; 15. Inspection plate; 2. Fixing frame; 21. Rotating rod; 22. Circular gear; 23. Crown gear; 24. Worm; 25. Worm gear; 26. Motor; 27. Turntable; 3. Sealing ring No. 1; 31. Connecting ring; 32. Sealing ring No. 2; 33. Mounting hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: Figure 1-4 As shown, the utility model provides a valve assembly, including a valve body 1, two valve stems 11 are rotatably inserted in the valve body 1, valve flaps 12 are installed on the outside of the two valve stems 11, and the two valve flaps 12 are installed on the inside of the valve body 1, and an adjusting box 14 is installed on the top of the valve body 1. The valve stem 11 is inserted in the adjusting box 14. By setting the two valve flaps 12, the liquid in the valve body 1 can be double-opened and closed to avoid internal leakage; a fixing frame 2 is fixed in the adjusting box 14, and a rotating rod 21 is rotatably inserted in the fixing frame 2. Both ends of the rotating rod 21 are equipped with A circular gear 22 and a crown gear 23 are fixedly provided on the outside of the two valve stems 11, so that the circular gear 22 rotates to drive the crown gear 23 to rotate. The two circular gears 22 are respectively engaged with the crown gear 23. Two worm gears 25 are fixedly sleeved on the outside of the rotating rod 21. Two worm gears 24 are rotatably inserted in the adjusting box 14. The two worm gears 24 are mirror-imaged. The two worm gears 24 are connected to the synchronous belt through a synchronous wheel. The two worm gears 24 are respectively engaged with the two worm gears 25. The rotation of the worm gear 24 drives the worm gear 25 to rotate on the rotating rod 21.

[0020] A No. 1 sealing ring 3 is installed on the inner side of both ends of the valve body 1, and a connecting ring 31 is installed on both ends of the valve body 1. A No. 2 sealing ring 32 is installed on the end of the two connecting rings 31 away from the valve body 1, and mounting holes 33 distributed in a ring array are opened on the outside of the two connecting rings 31.

[0021] By adopting the above technical solution, the connecting ring 31 and the mounting hole 33 facilitate the installation and disassembly of the valve body 1 and the external pipeline. At the same time, the No. 1 sealing ring 3 and the No. 2 sealing ring 32 can seal the connection to avoid leakage.

[0022] An access plate 15 is installed on the outside of the adjustment box 14 , and the access plate 15 is installed on the outside of the adjustment box 14 by screws.

[0023] By adopting the above technical solution, the inside of the adjustment box 14 can be easily inspected by disassembling the inspection plate 15 .

[0024] Two sealing sleeves 13 are inserted at the top end of the valve body 1 , and the two valve stems 11 are rotatably inserted outside the two sealing sleeves 13 .

[0025] By adopting the above technical solution, the sealing sleeve 13 can seal the connection between the valve stem 11 and the valve body 1 to avoid water leakage.

[0026] A turntable 27 is rotatably provided at the top of the regulating box 14 , and a motor 26 is installed at the top of the regulating box 14 .

[0027] By adopting the above technical solution, the turntable 27 and the output end of the motor 26 can drive the two worms 24 to rotate synchronously.

[0028] The end of the rotary disc 27 and the output end of the motor 26 are fixedly connected to the two worm gears 24 respectively.

[0029] By adopting the above technical solution, when the motor 26 is damaged, the turntable 27 can be driven, thereby achieving the purpose of opening and closing the valve body 1 in a backup manner.

[0030] Working principle: When the valve needs to be closed or opened, the motor 26 is first started to make the motor 26 start working. The output shaft end of the motor 26 rotates to drive one of the worms 24 to rotate. The two worms 24 rotate synchronously through the synchronous wheel and the synchronous belt. At the same time, the two worms 24 can also be driven to rotate synchronously by the driving turntable 27. The rotation of the worm 24 drives the mutually meshing worm wheel 25 and the rotating rod 21 to rotate in the fixed frame 2. The rotation of the rotating rod 21 drives the two circular gears 22 to rotate. The rotation of the circular gear 22 drives the mutually meshing crown gear 23 to rotate. The rotation of the crown gear 23 drives the two valve stems 11 to rotate. The rotation of the valve stem 11 drives the valve disc 12 to rotate. By rotating the two valve flaps 12 to open and close the valve body 1, the liquid in the valve body 1 can be doubly blocked, thereby avoiding internal leakage, thereby achieving the purpose of improving the sealing. The valve body 1 and the external pipeline can be easily installed and disassembled through the connecting ring 31, avoiding the inability to isolate the valve during operation and the inability to perform on-site disassembly and maintenance during maintenance. The valve can only be cut off as a whole and returned to the factory for repair. The maintenance cycle is uncontrollable, and the valves of the drainage system need to be modified to achieve the purpose of facilitating installation and replacement. At the same time, the No. 1 sealing ring 3 and the No. 2 sealing ring 32 can improve the sealing of the connection to avoid leakage of the valve body 1.

[0031] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A valve assembly comprising a valve body (1), characterized in that: Two valve stems (11) are rotatably inserted in the valve body (1), valve flaps (12) are installed on the outside of the two valve stems (11), and the two valve flaps (12) are both installed on the inside of the valve body (1). An adjustment box (14) is installed on the top of the valve body (1), and the valve stems (11) are inserted in the adjustment box (14); A fixing frame (2) is fixedly provided in the regulating box (14), a rotating rod (21) is rotatably inserted in the fixing frame (2), circular gears (22) are installed at both ends of the rotating rod (21), crown gears (23) are fixedly provided on the outsides of the two valve stems (11), the two circular gears (22) are respectively engaged with the crown gears (23), two worm gears (25) are fixedly provided on the outsides of the rotating rod (21), two worm gears (24) are rotatably inserted in the regulating box (14), the two worm gears (24) are connected to the synchronous belt through a synchronous wheel, and the two worm gears (24) are respectively engaged with the two worm gears (25).

2. The valve assembly according to claim 1, wherein: A No. 1 sealing ring (3) is installed on the inner side of both ends of the valve body (1), and a connecting ring (31) is installed on both ends of the valve body (1). A No. 2 sealing ring (32) is installed on the end of the two No. 1 connecting rings (31) away from the valve body (1), and mounting holes (33) distributed in a ring array are opened on the outer side of the two No. 1 connecting rings (31).

3. The valve assembly according to claim 1, wherein: An inspection plate (15) is installed on the outside of the regulating box (14), and the inspection plate (15) is installed on the outside of the regulating box (14) by screws.

4. The valve assembly according to claim 1, wherein: Two sealing sleeves (13) are inserted at the top end of the valve body (1), and the two valve stems (11) are rotatably inserted outside the two sealing sleeves (13) respectively.

5. The valve assembly according to claim 1, wherein: A turntable (27) is rotatably provided at the top of the regulating box (14), and a motor (26) is installed at the top of the regulating box (14).

6. The valve assembly according to claim 5, wherein: The end of the rotating disk (27) and the output end of the motor (26) are fixedly connected to the two worms (24) respectively.

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