Valve sealing structure

Abstract

The utility model relates to the technical field of valve sealing, and discloses a valve sealing structure, which comprises a shell, a valve element, a sealing element and a sealing element, a sealing valve core and a sealing blocking ball; the sealing valve element is arranged in the shell, the two ends of the sealing valve element are connected with the water inlet and the water outlet correspondingly, the sealing blocking ball is arranged in the sealing valve element, and the sealing valve element is sealed through the sealing blocking ball; the blocking ball control structure is arranged in the shell, and after the sealing blocking ball is jacked up through the blocking ball control structure, water passes through the sealing valve element and flows out of the water outlet; and the blocking ball control structure is adjusted and controlled through the rotary adjusting structure. Compared with the prior art, the check valve has the advantages that the blocking ball abuts against the spherical surface of the clamping ring of the valve element through water pressure for blocking and sealing, after the blocking ball is jacked up, water flow can wash and clean the surfaces of the blocking ball and the clamping ring, impurities in water are not prone to being accumulated, a sealing area is not prone to being damaged, and the check valve is more convenient to use and more durable.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve sealing technical field, specifically point to a valve sealing structure. BACKGROUND

[0002] Valve is used for opening and closing pipeline, controls flow direction, adjusts and controls the parameter of pipeline accessory of delivery medium, is important mechanical part in industrial production and people's daily life, with the development of technology and the improvement of automation level, electromagnetic valve, electric valve and other advanced valve body are widely used in industrial production and cooperate with various sensors, greatly reduce the demand for manpower.

[0003] The existing valve is various, and there are dozens of ball valves, butterfly valves, check valves, plug valves and the like in the single water system, most of which have excellent and unique sealing structures to maintain the switching of water flow cutoff and flow-through state, and most of the existing valves are sealed by simple mechanical movement, so that the metal surface is attached to the metal surface, and the sealing is formed, but because most of the water bodies contain impurities, sand and other impurities are often attached to the sealing metal surface, which hinders and affects the sealing, resulting in water leakage and even damage to the valve. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties, and a valve sealing structure is provided, which is sealed by the blocking ball resisting on the snap ring surface of the valve core through water pressure, and after the blocking ball is lifted, the water flow can flush and clean the blocking ball and the snap ring surface.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is:

[0006] A valve sealing structure comprises:

[0007] The outer shell is provided with a water inlet and a water outlet on both sides;

[0008] The sealing valve core and the sealing blocking ball are arranged in the outer shell, and the two ends of the sealing valve core are connected with the water inlet and the water outlet respectively, and the sealing blocking ball is arranged in the sealing valve core, and the sealing valve core is sealed by the sealing blocking ball;

[0009] The blocking ball control structure is arranged in the outer shell, and the sealing blocking ball is lifted by the blocking ball control structure, and the water flows out from the water outlet through the sealing valve core;

[0010] The rotating adjustment structure adjusts and controls the blocking ball control structure.

[0011] As an improvement, the sealing valve core is a circular tube body arranged upright, and a clamping ring is formed on the inner wall, and a sealing gasket is fixed on the top surface of the clamping ring. The sealing ball is arranged above the clamping ring and movably fits in the sealing valve core. After the surface of the sealing ball fits with the top surface of the clamping ring and contacts the sealing gasket, the sealing valve core is sealed by the sealing ball. The sealing valve core is evenly provided with multiple vertical water grooves along the circumference on the inner wall above the clamping ring.

[0012] As an improvement, the ball blocking control structure includes a limiting cylinder, a connecting pipe, a tamping rod and a piston; the limiting cylinder is a cylindrical structure with an open top, and is arranged upright on one side of the sealing valve core, one end of the connecting pipe is connected to the bottom of the sealing valve core, and the other end is connected to the bottom of the limiting cylinder, and the sealing valve core and the limiting cylinder are connected through the connecting pipe, the piston is slidably arranged in the limiting cylinder, and is sealed at the connection with the limiting cylinder, the tamping rod is a U-shaped rod body, and one end is connected and fixed to the bottom of the piston, and the other end is arranged directly below the sealing blocking ball, and after the tamping rod lifts the sealing blocking ball, water flows out through the sealing valve core.

[0013] As an improvement, the rotation adjustment structure includes a capping handwheel, a transmission rod and a rotating sleeve; an external threaded joint is formed on the top of the shell, and the capping handwheel is threadedly sleeved on the top of the shell, the rotating sleeve is rotatably arranged in the middle of the inner bottom surface of the capping handwheel, the transmission rod is an L-shaped rod body, and the horizontal rod section is sleeved and fixed in the rotating sleeve, the bottom of the vertical rod section is connected and fixed together with the top of the piston, and after the capping handwheel is rotated, the transmission rod drives the piston to move up and down.

[0014] The advantages of this utility model compared with the prior art are:

[0015] 1. The utility model uses water pressure to make the blocking ball hit the surface of the valve core's clamping ring to block and seal. The principle is simple and the sealing effect is good. After the blocking ball is lifted up, the water flow can flush and clean the surface of the blocking ball and the clamping ring, which is not easy to cause impurities in the water to accumulate and damage the sealing area. It is more convenient to use and more durable.

[0016] 2. The utility model drives the piston and the tamping rod to move by rotating the hand wheel, which is more labor-saving and more convenient to use.

[0017] 3. The rotating part of the utility model is arranged on the top of the shell and is not in contact with water, which is not easy to cause rust or freezing to hinder the rotation adjustment, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a partial structural diagram of the utility model Figure 1 .

[0020] Figure 3It is a cross-sectional schematic diagram of the present utility model.

[0021] Figure 4 This is a partial structural diagram of the utility model Figure 2 .

[0022] Figure 5 It is a structural diagram of the sealing valve core of the utility model.

[0023] As shown in the figure: 1. Sealing ball; 2. Outer shell; 3. Screw cap handwheel; 4. Water inlet; 5. Water outlet; 6. Snap ring; 7. Sealing valve core; 8. Water channel; 9. Limit cylinder; 10. Transmission rod; 11. Rotating sleeve; 12. Tamping rod; 13. Piston; 14. Connecting pipe. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] A valve sealing structure, such as Figure 1 As shown, the housing 2 is provided with a water inlet 4 and a water outlet 5 on both sides, and the ends of the water inlet 4 and the water outlet 5 are reserved with threaded joints for connection. The top of the housing 2 is open and formed with an external threaded joint. The screw cap hand wheel 3 is threadedly sleeved on the top of the housing 2 (a plurality of anti-slip protrusions and grooves are evenly arranged on the screw cap hand wheel 3 along the circumference). The sealing valve core 7 is a circular tube arranged upright, and as shown Figure 3 As shown, it is arranged in the housing 2, and the upper end is connected to the water inlet 4 pipe (as shown Figure 4As shown, the water inlet 4 pipe is an inverted U-shaped pipe, and its two ends are respectively connected to the upper end of the sealing valve core 7 and the water inlet 4), and the lower end is connected to the water outlet 5 pipe (the water inlet 4 and the water outlet 5 are arranged at the same height). A clamping ring 6 is formed on the inner wall of the middle part of the sealing valve core 7. The clamping ring 6 is arranged concave downward, and the top surface is a spherical surface and fixed with a sealing gasket. The sealing valve core 7 is also evenly provided with six vertical water grooves 8 (such as Figure 5 As shown, after the sealing ball 1 is lifted up, the water flows through the water channel 8 and flows through the sealing ball 1). The sealing ball 1 is a hollow sphere arranged above the clamping ring 6 and is adapted to the clamping ring 6. It is movably fitted in the sealing valve core 7. Under the action of water pressure and gravity at the water inlet 4 end, the sealing ball 1 fits on the top surface of the clamping ring 6 and conflicts with the sealing gasket, so that the sealing valve core 7 is sealed and the water flow is cut off.

[0027] Ball blocking control structure and rotation adjustment structure; Ball blocking control structure such as Figure 3 As shown, it includes a limiting cylinder 9, a connecting pipe 14, a tamping rod 12 and a piston 13; the limiting cylinder 9 is a cylindrical structure with an open top, and is vertically arranged on one side of the sealing valve core 7, and the connecting pipe 14 is as shown Figure 4 As shown, one end is connected to the bottom of the sealing valve core 7, and the other end is connected to the bottom of the limiting cylinder 9, and the sealing valve core 7 and the limiting cylinder 9 are connected through the connecting pipe 14. The piston 13 is slidably set in the limiting cylinder 9 and is sealed at the connection with the limiting cylinder 9. The tamping rod 12 is a U-shaped rod body and is arranged in the connecting pipe 14. One end is connected and fixed to the bottom of the piston 13, and the other end is set just below the sealing ball 1. After the piston 13 moves upward along the limiting cylinder 9, the tamping rod 12 collides with the sealing ball 1 and lifts the sealing ball 1 (after the sealing ball 1 is lifted, the water flows through the sealing valve core 7 and enters the limiting cylinder 9 and is blocked by the piston 13). The rotary adjustment structure includes a screw cap handwheel 3, a transmission rod 10 and a rotary sleeve 11; an external threaded joint is formed on the top of the shell 2, and the screw cap handwheel 3 is threadedly sleeved on the top of the shell 2, as shown in FIG. Figure 2 As shown, the rotary sleeve 11 is rotatably set in the middle of the inner bottom surface of the capping handwheel 3, the transmission rod 10 is an L-shaped rod body, and the horizontal rod section is sleeved and fixed in the rotary sleeve 11, the bottom of the vertical rod section is connected and fixed together with the top of the piston 13, and after the capping handwheel 3 is rotated, the piston 13 is driven to move up and down in the limiting cylinder 9 through the transmission rod 10.

[0028] In the specific implementation of this embodiment:

[0029] The water inlet 4 and the water outlet 5 are connected to the pipe through the threaded joints reserved therein before use.

[0030] When circulation is required, the top capping hand wheel 3 is rotated, and under the action of the thread, the capping hand wheel 3 rises, and the transmission rod 10 drives the piston 13 to move upward in the limit cylinder 9, and the tamping rod 12 lifts the sealing ball 1, and the water flows through the water trough 8, passes through the sealing ball 1, and flows out through the water outlet 5. At this time, the retaining ring 6 is washed and cleaned by the torrent to avoid the accumulation of sand and gravel.

[0031] When it is necessary to cut off the water flow, the top capping hand wheel 3 is rotated in the opposite direction, and under the action of the thread, the capping hand wheel 3 descends, and the transmission rod 10 drives the piston 13 to move downward in the limit cylinder 9, the tamping rod 12 leaves the sealing ball 1, and the sealing ball 1 falls under the action of gravity and water flow, fits on the top surface of the retaining ring 6, and conflicts with the sealing gasket, so that the sealing valve core 7 is sealed and the water flow is cut off.

[0032] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A valve sealing structure, characterized in that: include: The housing (2) is provided with a water inlet (4) and a water outlet (5) on both sides; A sealing valve core (7) and a sealing blocking ball (1); the sealing valve core (7) is arranged in the housing (2), and its two ends are respectively connected to the water inlet (4) and the water outlet (5); the sealing blocking ball (1) is arranged in the sealing valve core (7), and the sealing valve core (7) is sealed by the sealing blocking ball (1); The ball blocking control structure is arranged in the housing (2). After the sealing ball (1) is lifted by the ball blocking control structure, water passes through the sealing valve core (7) and flows out from the water outlet (5); The ball blocking control structure is adjusted and controlled by the rotary adjustment structure.

2. A valve sealing structure according to claim 1, characterized in that: The sealing valve core (7) is a circular tube arranged upright, and a clamping ring (6) is formed on the inner wall. The sealing ball (1) is arranged above the clamping ring (6) and is movably fitted in the sealing valve core (7). After the surface of the sealing ball (1) fits and contacts the top surface of the clamping ring (6), the sealing valve core (7) is blocked by the sealing ball (1). A plurality of vertical strip-shaped water-passing grooves (8) are evenly arranged along the circumference on the inner wall of the sealing valve core (7) above the clamping ring (6).

3. A valve sealing structure according to claim 2, characterized in that: A sealing gasket is fixed on the top surface of the clamping ring (6).

4. A valve sealing structure according to claim 2, characterized in that: The ball blocking control structure comprises a limiting cylinder (9), a connecting pipe (14), a tamping rod (12) and a piston (13); the limiting cylinder (9) is a cylinder structure with an open top and is arranged upright on one side of the sealing valve core (7); one end of the connecting pipe (14) is connected to the bottom of the sealing valve core (7), and the other end is connected to the bottom of the limiting cylinder (9); the sealing valve core (7) and the limiting cylinder (9) are connected through the connecting pipe (14); the piston (13) is slidably arranged in the limiting cylinder (9) and is sealed at the connection with the limiting cylinder (9); the tamping rod (12) is a U-shaped rod body, one end of which is connected and fixed to the bottom of the piston (13), and the other end is arranged directly below the sealing blocking ball (1).

5. A valve sealing structure according to claim 4, characterized in that: The rotary adjustment structure comprises a capping hand wheel (3), a transmission rod (10) and a rotary sleeve (11); an external threaded joint is formed on the top of the housing (2), and the capping hand wheel (3) is threadedly sleeved on the top of the housing (2); the rotary sleeve (11) is rotatably arranged in the middle of the inner bottom surface of the capping hand wheel (3); the transmission rod (10) is an L-shaped rod body, and the horizontal rod section is sleeved and fixed in the rotary sleeve (11), and the bottom of the vertical rod section is connected and fixed to the top of the piston (13).

6. The valve sealing structure according to claim 1, characterized in that: The sealing ball (1) is a hollow sphere.

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