A kind of anti-internal leakage wear-resistant valve

Abstract

The present invention discloses an anti-internal leakage and wear-resistant valve, which includes a valve body, wherein the two ends of the valve body are connected with an input pipe and an output pipe respectively, and the valve body is provided with a first installation cavity and a second installation cavity, wherein a spring box is installed inside the first installation cavity, and a first bevel gear is fixedly installed on the inner wall of the second installation cavity, and a water wheel is installed on the back wall of the first bevel gear, and a fixing ring is installed on the inner wall of the second installation cavity, and a connecting block is embedded inside the fixing ring. The present invention utilizes the flow of liquid to drive the water wheel to rotate, and with the help of the rotation of the water wheel, energy is stored with the help of a spring arranged inside the spring box as the water wheel rotates in the opening stage, providing power for closing the valve, thereby autonomously realizing the opening and closing of the valve, and at the same time, the opening and closing of the valve is affected by the rotation of the water wheel and the energy released by the spring, so that the opening and closing speed of the valve will not be too fast, thereby avoiding water hammer caused by too fast changes in flow velocity and pressure of the fluid to damage the pipe fittings.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to an anti-internal leakage and wear-resistant valve. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems.

[0003] The stop valve used in the prior art must apply pressure to the valve disc when the valve is closed to force the sealing surface to prevent leakage. When the medium enters the valve from below the valve disc, the operating force needs to overcome resistance, especially in liquid transportation. When opening and closing the stop valve, due to the friction between the valve stem and the packing and the thrust generated by the pressure of the liquid, the stop valve is easily blocked when opening and closing, making it difficult to open or close the stop valve in time. Summary of the invention

[0004] The object of the present invention is to provide a wear-resistant valve that prevents internal leakage, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-internal leakage and wear-resistant valve, comprising a valve body, wherein two ends of the valve body are respectively connected with an input pipe and an output pipe, a first installation cavity and a second installation cavity are opened inside the valve body, a clockwork box is installed inside the first installation cavity, a first bevel gear is fixedly installed on the inner wall of the second installation cavity, a water wheel is installed on the back wall of the first bevel gear, a fixing ring is installed on the inner wall of the second installation cavity, a connecting block is embedded in the fixing ring, a transmission rod is installed on the top of the connecting block, a second bevel gear is installed on the outer surface of the transmission rod, a curved block is installed on the front side of the second bevel gear, a rotating cylinder is installed on the bottom of the connecting block through a connecting column, a threaded rod is installed on the top end of the rotating cylinder, a plug is arranged on the periphery of the threaded rod, a limiting rod is symmetrically installed on the top end of the rotating cylinder, and the input pipe and the output pipe are both connected with the inside of the second installation cavity through a shunt pipe.

[0006] Preferably, a limiting hole is provided at the center of the plug, and two second mounting grooves are symmetrically provided on the inner wall of the limiting hole, the first mounting groove is installed inside the second mounting groove, a connecting rod is slidably installed inside the first mounting groove, and an arc plate with a threaded inner wall is installed on one end of the connecting rod extending to the outside of the second mounting groove, and a spring is installed on the other end of the connecting rod.

[0007] Preferably, the interface position of the shunt pipe installed on the input pipe side and the second installation cavity is higher than the interface position of the shunt pipe installed on the output pipe side and the second installation cavity.

[0008] Preferably, the diameter of the curved block is the same as that of the second installation cavity, and the lowest point on the curved surface of the curved block corresponds to any point on the pipe opening surface of the shunt pipe installed on the output pipe side.

[0009] Preferably, the first bevel gear is meshed with the second bevel gear, and the top end of the transmission rod extends into the interior of the first mounting cavity and is connected to the spring shaft arranged inside the spring box through a detachable structure.

[0010] Preferably, the side wall of the rotating drum is symmetrically provided with two through holes, and the size and position of the through holes correspond to the size and position of the outlet pipe, and the side wall surface of the rotating drum without the through holes is mirror-symmetrically provided with two inclined sliding grooves, and the outer surface of the plug is symmetrically provided with a pair of limit blocks slidably installed in the sliding grooves provided on the side wall of the rotating drum.

[0011] Preferably, an outer surface of the connecting rod is provided with an inverted trapezoidal groove whose bottom surface matches the bottom surface of the limiting rod, and the setting position of the limiting rod corresponds to the inclined surface position of the inverted trapezoidal groove in the connecting rod.

[0012] Preferably, a through hole through which the transmission rod passes is opened at the center of the curved block.

[0013] Preferably, the installation position of the diverter pipe installed on the input pipe side in the second installation cavity corresponds to the installation position of the water wheel.

[0014] Preferably, the input pipe, the output pipe and the inner wall of the second installation cavity are all coated with a wear-resistant layer.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the anti-internal leakage and wear-resistant valve utilizes the flow of liquid to drive the water wheel to rotate, and with the help of the rotation of the water wheel, during the opening stage, as the water wheel rotates, a spring arranged inside the spring box is used to store energy, providing power for closing the valve, thereby autonomously realizing the opening and closing of the valve. At the same time, the opening and closing of the valve is affected by the rotation of the water wheel and the release of energy from the spring, so the opening and closing speed of the valve will not be too fast, thereby avoiding water hammer caused by rapid changes in flow rate and pressure of the fluid to cause damage to the pipe fittings.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the anti-internal leakage and internal wear valve drives the water wheel to rotate through the diverter pipe, and drives the rotating drum to rotate through the structure set in between. When the side of the rotating drum with a through hole is connected to the output pipe, the overlapping area between the side of the rotating drum and the output pipe changes periodically, thereby achieving the effect of regulating the water speed and maintaining the water speed near a certain level. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0019] Figure 3 for Figure 2 A magnified view of the structure at center;

[0020] Figure 4 It is a top view of the plug structure of the present invention;

[0021] Figure 5 It is a plan view of the rotating drum of the present invention after unfolding;

[0022] Figure 6 This is a schematic diagram of the connection relationship between the first mounting groove and the connecting rod of the present invention;

[0023] Figure 7 It is a schematic diagram of the curved surface block structure of the present invention.

[0024] In the figure: 1, valve body; 2, input pipe; 3, output pipe; 4, first installation cavity; 5, second installation cavity; 6, clockwork box; 7, first bevel gear; 8, fixing ring; 9, connecting block; 10, transmission rod; 11, second bevel gear; 12, rotating drum; 13, threaded rod; 14, plug; 15, limit rod; 16, shunt pipe; 17, first installation groove; 18, connecting rod; 19, spring; 20, arc plate; 21, water wheel; 22, curved block; 23, limit hole; 24, second installation groove. DETAILED DESCRIPTION

[0025] 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 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 creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-7An embodiment of the present invention is as follows: an anti-internal leakage and wear-resistant valve comprises a valve body 1, wherein the two ends of the valve body 1 are respectively connected with an input pipe 2 and an output pipe 3, a first installation cavity 4 and a second installation cavity 5 are opened inside the valve body 1, a clockwork box 6 is installed inside the first installation cavity 4, a first bevel gear 7 is fixedly installed on the inner wall of the second installation cavity 5, a water wheel 21 is installed on the back wall of the first bevel gear 7, a fixing ring 8 is installed on the inner wall of the second installation cavity 5, a connecting block 9 is embedded inside the fixing ring 8, a transmission rod 10 is installed on the top of the connecting block 9, a second bevel gear 11 is installed on the outer surface of the transmission rod 10, a curved surface block 22 is installed on the front of the second bevel gear 11, a rotating cylinder 12 is installed on the bottom of the connecting block 9 through a connecting column, a threaded rod 13 is installed on the top end of the rotating cylinder 12, a plug 14 is arranged on the periphery of the threaded rod 13, a limiting rod 15 is symmetrically installed on the top end of the rotating cylinder 12, and both the input pipe 2 and the output pipe 3 are connected to the inside of the second installation cavity 5 through a shunt pipe 16.

[0027] In this embodiment, a limiting hole 23 is provided at the center of the plug 14, and two second mounting grooves 24 are symmetrically provided on the inner wall of the limiting hole 23. The first mounting groove 17 is installed inside the second mounting groove 24, and a connecting rod 18 is slidably installed inside the first mounting groove 17. An arc plate 20 with a threaded inner wall is installed at one end of the connecting rod 18 extending to the outside of the second mounting groove 24, and a spring 19 is installed at the other end of the connecting rod 18.

[0028] In this embodiment, the interface position of the shunt tube 16 installed on the input pipe 2 side in the second installation cavity 5 is higher than the interface position of the shunt tube 16 installed on the output pipe 3 side in the second installation cavity 5, forming a height difference inside the second installation cavity 5, so that the injected liquid is discharged smoothly and flows back to the output pipe 3 through the shunt tube 16.

[0029] In this embodiment, the diameter of the curved block 22 is the same as that of the second installation cavity 5, and the lowest point on the curved surface of the curved block 22 corresponds to any point on the pipe mouth surface of the shunt pipe 16 installed on the side of the output pipe 3. By utilizing the curved surface of the curved block 22 and cooperating with the rotation of the curved block 22, the liquid entering the second installation cavity 5 can flow continuously and smoothly into the shunt pipe 16 on the side of the output pipe 3, thereby reducing the residual liquid inside the second installation cavity 5.

[0030] In this embodiment, the first bevel gear 7 is meshed with the second bevel gear 11, and the top end of the transmission rod 10 extends to the interior of the first mounting cavity 4 and is connected to the spring shaft arranged inside the clockwork box 6 through a detachable structure, thereby realizing transmission between the bevel gears, so that the spring of the clockwork box 6 can store energy through the rotating bevel gears, and the detachable structure facilitates the replacement and maintenance of the clockwork box 6.

[0031] In the present embodiment, two through holes are symmetrically provided on the side wall of the rotating drum 12, and the size and position of the through holes correspond to the size and position of the pipe mouth of the output pipe 3. Two inclined slide grooves are mirror-symmetrically provided on the side wall surface of the rotating drum 12 where no through holes are provided. A pair of limit blocks slidably installed on the slide grooves provided on the side wall of the rotating drum 12 are symmetrically installed on the outer surface of the plug 14. Since the rotating drum 12 keeps rotating during the movement of the plug 14, the movement trajectory of the plug 14 on the inner wall of the rotating drum 12 is an oblique line in the plane. The setting of the slide groove ensures the movement trajectory of the plug 14, and during the rotation of the rotating drum 12, when the through hole on the rotating drum 12 is connected with the pipe mouth of the output pipe 3, the effect of controlling the flow rate of the water is achieved.

[0032] In this embodiment, the outer surface of the connecting rod 18 is provided with an inverted trapezoidal groove whose bottom surface is adapted to the bottom surface of the limiting rod 15. The setting position of the limiting rod 15 corresponds to the inclined surface position of the inverted trapezoidal groove in the connecting rod 18. When the plug 14 moves upward, when the limiting rod 15 contacts the inclined surface of the groove, the connecting rod 18 can be driven to move.

[0033] In this embodiment, a through hole is opened in the center of the curved block 22 through which the transmission rod 10 passes, so that the curved surface of the curved block 22 can cover the second bevel gear 11, allowing water to flow smoothly into the diversion pipe 16 and reduce residue.

[0034] In this embodiment, the installation position of the diverter pipe 16 installed on the side of the input pipe 2 in the second installation cavity 5 corresponds to the installation position of the water wheel 21, so that the water flow entering the second installation cavity 5 can correctly act on the water wheel 21 to drive the water wheel 21 to rotate.

[0035] In this embodiment, the input pipe 2, the output pipe 3 and the inner wall of the second installation cavity 5 are all coated with a wear-resistant layer to improve the wear resistance of the valve as a whole.

[0036] Embodiment 1, as Figure 1-2As shown, the liquid flows into the second installation cavity 5 through the shunt pipe 16 and acts on the water wheel 21 at the same time. The water wheel 21 starts to rotate under the flushing of the liquid. As the water wheel 21 rotates, the second bevel gear 11 is driven to rotate under the meshing action of the first bevel gear 7 and the second bevel gear 11. As the second bevel gear 11 rotates, the rotating drum 12 and the transmission rod 10 also rotate synchronously driven by the second bevel gear 11. The curved surface of the curved surface block 22 covers the second bevel gear 11, and cooperates with the rotation of the curved surface block 22 to allow the liquid entering the second installation cavity 5 to The liquid entering the second installation cavity 5 can flow continuously, and is guided by the curved block 22, and flows back to the inside of the output pipe 3 through the shunt pipe 16, and flows to the shunt pipe 16 located at a lower position, and then flows to the output pipe 3. The two shunt pipes 16 form a height difference inside the second installation cavity 5, so that the injected liquid is discharged smoothly, and the residual liquid inside the second installation cavity 5 is reduced. With the progress of the work process, the valve is opened and closed autonomously, and the opening and closing speed of the valve is determined not to be too fast, so as to avoid water hammer caused by too fast changes in flow velocity and pressure of the fluid, which may cause damage to the pipe fittings.

[0037] Embodiment 2, as Figure 3-5 As shown, the plug 14 rises along the threaded rod 13. Since the drum 12 keeps rotating during the movement of the plug 14, the movement trajectory of the plug 14 on the inner wall of the drum 12 is an oblique line in the plane. The setting of the slide groove ensures that the plug 14 can also move upward to open the passage inside the valve body 1 while the drum 12 rotates. When the plug 14 moves to the top of the drum 12, the limit rod 15 is connected with the opening on the connecting rod 18. Due to the inclined surface of the groove, as the plug 14 moves, the connecting rod 18 moves toward the inside of the second mounting groove 24, so that the arc plate 20 no longer contacts the threaded rod 13, thereby stopping the movement of the plug 14. At the same time, the plug 14 will also rotate synchronously with the drum 12. When the side surface of the drum 12 with a through hole is connected to the output pipe 3 while the drum 12 rotates, the overlapping area between the side surface of the drum 12 and the output pipe 3 changes periodically, thereby achieving the effect of adjusting the water speed.

[0038] Working principle: when the valve needs to be opened, the liquid is introduced through the input pipe 2. At this time, the plug 14 is at the lowest end, keeping the valve body 1 in a closed state, and as the amount of liquid increases, the hydraulic pressure acts on the plug 14, and at the same time, part of the liquid flows into the second installation cavity 5 through the shunt pipe 16, and acts on the water wheel 21. The water wheel 21 starts to rotate under the flushing of the liquid. As the water wheel 21 rotates, the second bevel gear 11 is driven to rotate under the meshing action of the first bevel gear 7 and the second bevel gear 11. As the second bevel gear 11 rotates, the rotating drum 12 and the transmission rod 10 also rotate synchronously driven by the second bevel gear 11. The liquid entering the second installation cavity 5 is guided by the curved block 22, flows to the shunt pipe 16 located at a low position, and flows to the output pipe 3.

[0039] When the transmission rod 10 rotates, since one end of the transmission rod 10 is connected to the spring shaft arranged inside the spring box 6, the spring is tightened and energy is stored through the spring shaft when the transmission rod 10 rotates. As the rotating drum 12 rotates, since the inner wall of the arc plate 20 is provided with threads, when the arc plate 20 contacts the threaded rod 13 inside the rotating drum 12, the plug 14 rises along the threaded rod 13 with the help of the thread action and under the action of hydraulic pressure, the passage inside the valve body 1 is opened to allow liquid to pass through.

[0040] When the plug 14 moves to the top of the drum 12, the limit rod 15 is connected to the opening on the connecting rod 18. Due to the internal shape of the opening, as the plug 14 moves, the connecting rod 18 moves toward the inside of the second mounting groove 24 through the cooperation with the limit rod 15, so that the arc plate 20 is no longer in contact with the threaded rod 13, thereby stopping the movement of the plug 14. At the same time, the plug 14 will also rotate synchronously with the drum 12. When the drum 12 rotates, when the side of the drum 12 with the through hole is connected to the output pipe 3, the overlapping area between the side of the drum 12 and the output pipe 3 changes periodically, thereby achieving the effect of adjusting the water speed.

[0041] When it is necessary to stop delivering liquid, the liquid flow slows down and the effect on the water wheel 21 weakens until the water wheel 21 cannot rotate. At this time, the mainspring releases the stored energy to drive the transmission rod 10 to rotate, thereby driving the threaded rod 13 to rotate. At the same time, the pressure at the bottom of the plug 14 is reduced, and the plug 14 gradually separates from the limit rod 15 under its own gravity. Under the action of the spring 19, the arc plate 20 contacts the threaded rod 13 again. When the threaded rod 13 reverses, the arc plate 20 drops to achieve closure.

[0042] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or scope of the present invention. Therefore, the embodiments of the present invention are exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0043] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An anti-internal leakage and wear-resistant valve, comprising a valve body (1), characterized in that: The two ends of the valve body (1) are respectively connected with an input pipe (2) and an output pipe (3); a first installation cavity (4) and a second installation cavity (5) are provided inside the valve body (1); a spring box (6) is installed inside the first installation cavity (4); a first bevel gear (7) is fixedly installed on the inner wall of the second installation cavity (5); a water wheel (21) is installed on the back wall of the first bevel gear (7); a fixing ring (8) is installed on the inner wall of the second installation cavity (5); a connecting block (9) is embedded inside the fixing ring (8); a transmission gear (21) is installed on the top of the connecting block (9); A rod (10), a second bevel gear (11) is mounted on the outer surface of the transmission rod (10), a curved surface block (22) is mounted on the front surface of the second bevel gear (11), a rotating cylinder (12) is mounted on the bottom of the connecting block (9) via a connecting column, a threaded rod (13) is mounted on the top of the rotating cylinder (12), a plug (14) is arranged on the periphery of the threaded rod (13), a limiting rod (15) is symmetrically mounted on the top of the rotating cylinder (12), and the input pipe (2) and the output pipe (3) are both connected to the inside of the second installation cavity (5) via a shunt pipe (16), Wherein: a limiting hole (23) is provided at the center of the plug (14); two second mounting grooves (24) are symmetrically provided on the inner wall of the limiting hole (23); the first mounting groove (17) is installed inside the second mounting groove (24); a connecting rod (18) is slidably installed inside the first mounting groove (17); an arc-shaped plate (20) with a threaded inner wall is installed at one end of the connecting rod (18) extending to the outside of the second mounting groove (24); a spring (19) is installed at the other end of the connecting rod (18); The side wall of the rotating drum (12) is symmetrically provided with two through holes, and the size and position of the through holes correspond to the size and position of the outlet of the output pipe (3); the side wall surface of the rotating drum (12) without the through holes is mirror-symmetrically provided with two inclined slide grooves; the outer surface of the plug (14) is symmetrically provided with a pair of limit blocks slidably installed in the slide grooves provided on the side wall of the rotating drum (12); Wherein: the center of the curved surface block (22) is provided with a through hole through which the transmission rod (10) passes.

2. The anti-internal leakage and wear-resistant valve according to claim 1, characterized in that: The interface position of the flow divider (16) installed on the input pipe (2) side and the second installation cavity (5) is higher than the interface position of the flow divider (16) installed on the output pipe (3) side and the second installation cavity (5).

3. The anti-internal leakage and wear-resistant valve according to claim 1, characterized in that: The diameter of the curved surface block (22) is the same as that of the second installation cavity (5), and the lowest point on the curved surface of the curved surface block (22) corresponds to any point on the pipe opening surface of the diverter pipe (16) installed on the side of the output pipe (3).

4. The anti-internal leakage and wear-resistant valve according to claim 1, characterized in that: The first bevel gear (7) is meshed with the second bevel gear (11); the top end of the transmission rod (10) extends into the interior of the first installation cavity (4) and is connected to a spring shaft disposed inside the spring box (6) via a detachable structure.

5. The anti-internal leakage and wear-resistant valve according to claim 1, characterized in that: The outer surface of the connecting rod (18) is provided with an inverted trapezoidal groove whose bottom surface matches the bottom surface of the limiting rod (15); the setting position of the limiting rod (15) corresponds to the inclined surface position of the inverted trapezoidal groove in the connecting rod (18).

6. The anti-internal leakage and wear-resistant valve according to claim 1, characterized in that: The installation position of the flow distribution pipe (16) installed on the side of the input pipe (2) in the second installation cavity (5) corresponds to the installation position of the water wheel (21).

7. The anti-internal leakage and wear-resistant valve according to claim 2, characterized in that: The input pipe (2), the output pipe (3) and the inner wall of the second installation cavity (5) are all coated with a wear-resistant layer.

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