A self-generating electric gate valve

Abstract

The present invention discloses a self-generating electric gate valve, comprising a valve housing and a power generation unit. An opening is provided in the middle of the upper surface of the valve housing, a rectangular rod is provided in the middle of the top wall of the mounting housing, a valve stem is slidably connected to the outer lower end of the rectangular rod, a valve core at the lower end of the valve stem is arranged in cooperation with the inner cavity of the valve housing, a worm gear is rotatably connected to the bottom wall of the mounting housing via an annular groove, the valve stem is threadedly connected to a screw hole provided in the middle of the worm gear, a worm gear is rotatably connected to the right end of the inner cavity of the mounting housing via a rotating shaft, the worm gear is meshed with the worm gear, a DC motor is provided on the rear surface of the mounting housing via a mounting seat, the front end of the output shaft of the DC motor is fixedly connected to the rear end face of the rear rotating shaft of the worm gear, a box is provided on the right side of the upper surface of the mounting housing, a battery is placed in the inner cavity of the box, and a converter is provided on the front surface of the box. The present invention does not require an external power supply, is energy-saving and environmentally friendly, and facilitates the stable rotation of the impeller, making power generation more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of electric gate valves, in particular to a self-generating electric gate valve. Background Art

[0002] The electric gate valve uses an electric actuator to control the valve, thereby realizing the opening and closing of the valve. It can be divided into two parts, the upper part is the electric actuator, and the lower part is the valve. The switching speed of the electric gate valve can be adjusted, the structure is simple, and it is easy to maintain. The electric gate valve drives the valve stem through the motor to drive the valve core to realize the opening and closing of the valve and the adjustment of the valve opening and closing size. The electric gate valve responds sensitively and is safe and reliable.

[0003] Electric gate valves are usually powered by cables or batteries. Batteries have a certain life cycle, so they need to be replaced every once in a while. Cables need to be laid, which costs a lot of investment and maintenance. Therefore, a self-generating electric gate valve is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a self-generating electric gate valve that does not require an external power supply, is energy-saving and environmentally friendly, ensures that the self-generating electric gate valve still has a good sealing effect after long-term use, reduces the friction between the silicone rubber gasket, the metal wound gasket and the impeller, and plays a sealing role at the same time, can increase the water pressure and flow, is conducive to the stable rotation of the impeller, makes power generation more stable, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a self-generating electric gate valve, comprising a valve housing, a side wall of which is provided with a position-avoiding opening, and an electric opening and closing mechanism corresponding to the position-avoiding opening; characterized in that it also includes a power generation unit and a PLC controller;

[0006] The power generation unit includes a generator motor arranged in a mounting groove provided on the right side of the outer arc surface of the valve housing, a mounting shell arranged on the left side of the inner arc surface of the valve housing, an impeller rotatably connected to a rotating hole provided on the right side of the lower surface of the mounting shell through a bearing, a large gear arranged at the upper end of the impeller rod body and located in the inner cavity of the mounting shell, and a small gear meshing with the large gear, the lower end of the output shaft of the generator motor passes through an opening provided on the inner arc surface of the valve housing, and the small gear is connected to the output shaft of the generator motor.

[0007] In which: the electric opening and closing mechanism includes a mounting shell arranged on the side wall of the valve housing corresponding to the avoidance port, a rectangular rod is provided in the middle of the top wall of the mounting shell, the outer lower end of the rectangular rod is slidably connected to the valve stem, the lower end valve core of the valve stem is matched with the inner cavity of the valve housing, the bottom wall of the mounting shell is rotatably connected to the worm gear through an annular groove, the valve stem is threadedly connected to the screw hole provided in the middle of the worm gear, the right end of the inner cavity of the mounting shell is rotatably connected to the worm gear engaged with the worm gear through a rotating shaft, and a DC motor is provided on the rear surface of the mounting shell through a mounting seat, and the front end of the output shaft of the DC motor is fixedly connected to the rear end face of the rear end rotating shaft of the worm gear.

[0008] Furthermore: a box is provided on the right side of the upper surface of the mounting shell, a battery is placed in the inner cavity of the box, and a converter is provided on the front surface of the box; the input end of the battery is electrically connected to the output end of the converter, and the input end of the converter is electrically connected to the output end of the generator motor.

[0009] Furthermore, a sealing shell is provided at the rotating hole set on the right side of the bottom wall of the mounting shell, and an opening matching the impeller rod body is provided on the upper surface of the sealing shell. The impeller is located on the rod body in the inner cavity of the sealing shell and is movably sleeved with silicone rubber gaskets and metal spiral wound gaskets from top to bottom. The silicone rubber gasket and the metal spiral wound gasket are arranged in coordination to ensure that the self-generating electric gate valve still has a better sealing effect after long-term use.

[0010] Furthermore, the top wall of the sealing shell is provided with evenly distributed springs, the lower ends of the springs are fixedly connected to the upper end surface of the top ring, and the top ring is matched with the silicone rubber gasket to play the role of elastic support.

[0011] Furthermore, the gaps between the sealing shell, silicone rubber gasket, metal spiral wound gasket, spring, top ring, mounting shell and impeller are filled with sealing grease, which reduces the friction between the silicone rubber gasket, metal spiral wound gasket and impeller while performing a sealing function.

[0012] Furthermore, a guide ring plate is provided at the left end of the inner cavity of the valve housing, and the lower end of the impeller is located in the left opening of the guide ring plate, which can increase the water pressure and flow.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. After the electric gate valve is opened, water flows through the guide ring plate to the impeller, and the flow of water in the pipe drives the impeller to rotate. The rotation of the impeller drives the large gear to rotate synchronously. At the same time, the large gear rotates to drive the rotor of the generator motor through the small gear meshing with it, thereby generating electricity. The electricity generated by the generator motor is sent to the battery through the converter for storage. No external power supply is required, which is energy-saving and environmentally friendly. The differential speed is formed between the large gear and the meshing small gear, which makes the rotor of the generator motor rotate faster.

[0015] 2. Since the spring is always in a compressed state, it will always apply a downward pressure to the top ring below. The top ring presses down to squeeze the silicone rubber gasket and the metal spiral wound gasket. The two are tightly fitted with the connection between the impeller and the mounting shell, thereby sealing the connection between the impeller and the mounting shell, ensuring that the self-generating electric gate valve still has a better sealing effect after long-term use. The sealing butter can play a lubricating role, reducing the friction between the silicone rubber gasket, the metal spiral wound gasket and the impeller while playing a sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the power generation unit of the present invention;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1 valve housing, 2 mounting housing, 3 rectangular rod, 4 valve stem, 5 worm gear, 6 worm, 7 DC motor, 8 generator unit, 81 generator motor, 82 mounting housing, 83 impeller, 84 large gear, 85 small gear, 9 sealing housing, 10 silicone rubber gasket, 11 metal spiral wound gasket, 12 spring, 13 top ring, 14 sealing grease, 15 guide ring plate, 16 housing, 17 battery, 18 converter, 19 PLC controller. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0021] See also Figure 1-3 This embodiment provides a self-generating electric gate valve, including a valve housing 1, a side wall of the valve housing 1 is provided with a position-avoiding opening, and an electric opening and closing mechanism is provided corresponding to the position-avoiding opening; it is characterized in that it also includes a power generation unit 8 and a PLC controller 19.

[0022] Among them: the power generation unit 8 includes a generator motor 81 arranged in a mounting groove on the right side of the outer arc surface of the valve housing 1, a mounting shell 82 arranged on the left side of the inner arc surface of the valve housing 1, an impeller 83 rotatably connected to the rotating hole on the right side of the lower surface of the mounting shell 82 through a bearing, a large gear 84 arranged at the upper end of the rod body of the impeller 83 and located in the inner cavity of the mounting shell 82, and a small gear 85 meshing with the large gear 84, the lower end of the output shaft of the generator motor 81 passes through the opening set on the inner arc surface of the valve housing 1, and the small gear 85 is connected to the output shaft of the generator motor 81.

[0023] Among them: the electric opening and closing mechanism includes a mounting shell 2 corresponding to the avoidance port arranged on the side wall of the valve shell 1, a rectangular rod 3 is provided in the middle of the top wall of the mounting shell 2, and the outer lower end of the rectangular rod 3 is slidably connected to the valve stem 4, and the lower end valve core of the valve stem 4 is matched with the inner cavity of the valve shell 1. The bottom wall of the mounting shell 2 is rotatably connected to the worm gear 5 through an annular groove, and the valve stem 4 is threadedly connected to the screw hole set in the middle of the worm gear 5. The right end of the inner cavity of the mounting shell 2 is rotatably connected to the worm 6 engaged with the worm gear 5 through a rotating shaft. The rear surface of the mounting shell 2 is provided with a DC motor 7 through a mounting seat, and the front end of the output shaft of the DC motor 7 is fixedly connected to the rear end face of the rear end rotating shaft of the worm gear 6.

[0024] Among them: a box body 16 is provided on the right side of the upper surface of the mounting shell 2, a battery 17 is placed in the inner cavity of the box body 16, and a converter 18 is provided on the front surface of the box body 16; the input end of the battery 17 is electrically connected to the output end of the converter 18, and the input end of the converter 18 is electrically connected to the output end of the generator motor 81

[0025] Among them: a sealing shell 9 is provided at the rotating hole set on the right side of the bottom wall of the mounting shell 82, and an opening is provided on the upper surface of the sealing shell 9 that matches the rod body of the impeller 83. The impeller 83 is located on the rod body in the inner cavity of the sealing shell 9, and a silicone rubber gasket 10 and a metal spiral wound gasket 11 are movably sleeved from top to bottom. The silicone rubber gasket 10 and the metal spiral wound gasket 11 are matched with each other, and the two are tightly fitted with the connection between the impeller 83 and the mounting shell 82, thereby sealing the connection between the impeller 83 and the mounting shell 82, ensuring that the self-generating electric gate valve still has a better sealing effect after long-term use.

[0026] Among them: the top wall surface of the sealing shell 9 is provided with evenly distributed springs 12, the lower ends of the springs 12 are fixedly connected to the upper end surface of the top ring 13, and the top ring 13 is arranged in cooperation with the silicone rubber gasket 10. Since the springs 12 are always in a compressed state, they will always apply a downward pressure to the top ring 13 below. The top ring 13 presses down to squeeze the silicone rubber gasket 10 and the metal spiral wound gasket 11.

[0027] Among them, the gaps between the sealing shell 9, the silicone rubber gasket 10, the metal spiral wound gasket 11, the spring 12, the top ring 13, the mounting shell 82 and the impeller 83 are filled with sealing butter 14, and the sealing butter 14 can play a lubricating role, reducing the friction between the silicone rubber gasket 10, the metal spiral wound gasket 11 and the impeller 83 while playing a sealing role.

[0028] Among them: a guide ring plate 15 is provided at the left end of the inner cavity of the valve housing 1, and the lower end of the impeller 83 is located in the left opening of the guide ring plate 15. The guide ring plate 15 can increase the water pressure and flow, which is conducive to the stable rotation of the impeller 83 and makes power generation more stable.

[0029] The working principle of the present invention is as follows:

[0030] First, the staff connects the valve housing 1 to the pipeline network. Then, the staff controls the operation of the DC motor 7 through the PLC controller 19. The rotation of the output shaft of the DC motor 7 drives the worm 6 to rotate synchronously. The rotation of the worm 6 drives the valve stem 4 to move upward along the rectangular rod 3 through the worm gear 5 connected to it, thereby realizing the opening of the valve core of the electric gate valve.

[0031] Similarly, the reverse operation closes the electric gate valve. After the electric gate valve is opened, water flows through the guide ring plate 15 to rush towards the impeller 83, and the flow of water in the pipe drives the impeller 83 to rotate. The rotation of the impeller 83 drives the large gear 84 to rotate synchronously. At the same time, the large gear 84 rotates and drives the rotor of the generator motor 81 to rotate through the small gear 85 meshing with it, thereby generating electricity. The electric energy generated by the generator motor 81 is sent to the battery 17 for storage through the converter 18. No external power supply is required, which is energy-saving and environmentally friendly. A differential speed is formed between the large gear 84 and the meshing small gear 85, so that the rotor of the generator motor 81 rotates faster.

[0032] Since the spring 12 is always in a compressed state, it will always apply a downward pressure to the top ring 13 below. The top ring 13 presses down to squeeze the silicone rubber gasket 10 and the metal spiral wound gasket 11. The two are tightly fitted with the connection between the impeller 83 and the mounting shell 82, thereby sealing the connection between the impeller 83 and the mounting shell 82, ensuring that the self-generating electric gate valve still has a better sealing effect after long-term use. The sealing butter 14 can play a lubricating role, reducing the friction between the silicone rubber gasket 10, the metal spiral wound gasket 11 and the impeller 83 while playing a sealing role.

[0033] It is worth noting that the core chip of the PLC controller 19 disclosed in the above embodiment is a PLC single-chip microcomputer, specifically model S7-200. The DC motor 7, converter 18 and generator motor 81 can be freely configured according to the actual application scenario. The DC motor 7 can be a DC motor with model D57BLD30-12A, the converter 18 can be a DC motor with model WM-0840S12-50W, and the generator motor 81 can be a generator motor with model SXD-50FD. The PLC controller 19 controls the operation of the DC motor 7, converter 18 and generator motor 81 using methods commonly used in the prior art.

[0034] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A self-generating electric gate valve, comprising a valve housing (1), wherein a side wall of the valve housing (1) is provided with a position-avoiding opening, and an electric opening and closing mechanism is provided corresponding to the position-avoiding opening; characterized in that: It also includes a power generation unit (8) and a PLC controller (19); The power generation unit (8) comprises a generator motor (81) arranged in a mounting groove provided on the right side of the outer arc surface of the valve housing (1), a first mounting shell (82) arranged on the left side of the inner arc surface of the valve housing (1), an impeller (83) rotatably connected to a rotating hole provided on the right side of the lower surface of the first mounting shell (82) through a bearing, a large gear (84) provided at the upper end of the rod body of the impeller (83) and located in the inner cavity of the first mounting shell (82), and a small gear (85) meshing with the large gear (84), the lower end of the output shaft of the generator motor (81) passes through an opening provided on the inner arc surface of the valve housing (1), and the small gear (85) is connected to the output shaft of the generator motor (81); The electric opening and closing mechanism comprises a second mounting shell (2) which is arranged on the side wall of the valve shell (1) corresponding to the avoidance port, a rectangular rod (3) is provided in the middle of the top wall of the second mounting shell (2), the outer lower end of the rectangular rod (3) is slidably connected to the valve stem (4), the lower end valve core of the valve stem (4) is matched with the inner cavity of the valve shell (1), the bottom wall of the second mounting shell (2) is rotatably connected to the worm gear (5) through an annular groove, the valve stem (4) is threadedly connected to the screw hole provided in the middle of the worm gear (5), the right end of the inner cavity of the second mounting shell (2) is rotatably connected to the worm (6) meshed with the worm gear (5) through a rotating shaft, and a DC motor (7) is provided on the rear surface of the second mounting shell (2) through a mounting seat, and the front end of the output shaft of the DC motor (7) is fixedly connected to the rear end face of the rear end rotating shaft of the worm gear (6); A box (16) is provided on the right side of the upper surface of the second mounting shell (2), a battery (17) is placed in the inner cavity of the box (16), and a converter (18) is provided on the front surface of the box (16); the input end of the battery (17) is electrically connected to the output end of the converter (18), and the input end of the converter (18) is electrically connected to the output end of the generator motor (81).

2. The self-generating electric gate valve according to claim 1, characterized in that: A sealing shell (9) is provided at the rotating hole provided on the right side of the bottom wall of the first mounting shell (82); an opening matching the rod of the impeller (83) is provided on the upper surface of the sealing shell (9); the impeller (83) is located on the rod in the inner cavity of the sealing shell (9) and is movably sleeved with a silicone rubber gasket (10) and a metal spiral wound gasket (11) in sequence from top to bottom; the silicone rubber gasket (10) and the metal spiral wound gasket (11) are provided in coordination.

3. The self-generating electric gate valve according to claim 2, characterized in that: The top wall of the sealing shell (9) is provided with uniformly distributed springs (12), the lower ends of the springs (12) are fixedly connected to the upper end surface of the top ring (13), and the top ring (13) is matched with the silicone rubber gasket (10).

4. The self-generating electric gate valve according to claim 3, characterized in that: The gaps between the sealing shell (9), the silicone rubber gasket (10), the metal spiral wound gasket (11), the spring (12), the top ring (13), the first mounting shell (82) and the impeller (83) are all filled with sealing grease (14).

5. The self-generating electric gate valve according to claim 1, characterized in that: A guide ring plate (15) is provided at the left end of the inner cavity of the valve housing (1), and the lower end of the impeller (83) is located in the left opening of the guide ring plate (15).

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