Sealing ball valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a sealing ball valve, which comprises a valve body, a valve core, a valve core and a sealing ball, the hand wheel is used for controlling the opening and closing of the ball valve; the device further comprises a flow blocking mechanism, the flow blocking mechanism comprises a fixing frame, first springs, a conical table, front plates and rear plates, the fixing frame is fixedly connected into the water inlet pipeline, the front plates and the rear plates are annularly connected to the outer wall of the front end and the outer wall of the rear end of the conical table at equal intervals respectively, and the first springs are arranged between the rear plates and the fixing frame; according to the sealing ball valve, impact force and noise of water flow can be effectively reduced through the flow blocking mechanism when the water flow passes through the water inlet pipeline, the conical table in the flow blocking mechanism can play a role in buffering when the water flow impacts, internal parts of the ball valve are protected against damage, and the sealing ball valve is simple in structure and convenient to use. The service life of the ball valve is prolonged.

Description

Technical Field

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

[0002] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can be used for the regulation and control of fluids. Its working principle is that when the ball valve rotates 90 degrees, the inlet and outlet should all present spherical surfaces, thereby closing the valve and cutting off the flow of the medium; when the ball valve rotates 90 degrees, the inlet and outlet should all present ball mouths, thereby opening the flow, and there is basically no flow resistance. Ball valves are widely used in various occasions, including industry, construction, energy and water conservancy. In the industrial production process, ball valves are often used to control the flow, pressure, temperature and other parameters of the fluid, and can adapt to harsh environments such as high temperature, high pressure and corrosion. In the field of construction, ball valves are mainly used for control and regulation in pipeline systems, with the advantages of small size, light weight and easy installation. In the fields of energy and water conservancy, ball valves also play an important role, used to control parameters such as the flow and pressure of oil, gas or water.

[0003] The utility model with application number CN202020392129.2 discloses a ball valve with good sealing performance, which includes a valve body, flanges are welded at both ends of the valve body, and a ball is rotatably connected to the middle of the valve body through a rotating seat, the top of the ball is connected to a valve stem, one end of the valve stem extends to the outside of the valve body and is connected to a handwheel, the inside of the flange is connected to a connecting disk through a thread, one side of the connecting disk is located inside the valve body and a filtering mechanism for filtering water debris is provided, and the inside of the valve body is located on both sides of the ball. Rubber rings are provided, and in the utility model, through the locking mechanism, when in use, the spring can make the connecting block, the top rod and the connecting ring move in real time in the direction of the ball, so that the rubber ring can always squeeze the surface of the ball, thereby avoiding the gap between the rubber ring and the ball, thereby improving the sealing of the device. The ball valve in the utility model is in direct contact with the ball valve core during use, and the impact force of the water flow is easy to damage the ball valve. Utility Model Content

[0004] The utility model aims to provide a sealing ball valve for reducing the impact of water flow on the ball valve in view of the above-mentioned technical problems.

[0005] In view of this, the utility model provides a sealed ball valve, comprising: a valve body, the valve body comprising an inlet pipe and an outlet pipe; a handwheel, the handwheel controls the opening and closing of the ball valve; and also comprises: a flow blocking mechanism, the flow blocking mechanism comprising a fixed frame, a first spring, a conical platform, a front plate and a rear plate, the fixed frame is fixedly connected in the water inlet pipe, a plurality of the front plates and a plurality of the rear plates are respectively and equidistantly connected in an annular manner to the front end outer wall and the rear end outer wall of the conical platform, and the first spring is arranged between the rear plate and the fixed frame; wherein the flow blocking mechanism is arranged in the water inlet pipe.

[0006] In this technical solution, the blocking mechanism can effectively reduce the impact force and noise of the water flow when the water flows through the water inlet pipe. The conical platform in the blocking mechanism can play a buffering role when the water flow impacts, protect the internal parts of the ball valve from damage, and extend the service life of the ball valve.

[0007] In the above technical scheme, further, the baffle mechanism also includes: a movable groove, several of the movable grooves are respectively opened on the fixed frame; a movable rod, one end of the movable rod is slidably connected in the movable groove, the other end of the movable rod is fixedly connected to the rear plate, and the first spring is sleeved on the movable rod; a second spring, the second spring is arranged in the movable groove, one end of the second spring is connected to the movable rod, and the other end of the second spring is connected to the inner wall of the movable groove; a movable rod, the movable rod passes through the inner wall of the fixed frame, the movable rod is perpendicular to the movable rod, and the bottom end of the movable rod is arranged as an inclined surface; an inclined groove, the inclined groove is opened in the movable rod, and the inclined surface of the movable rod contacts the inclined surface of the inclined groove; a baffle, several of the baffles are respectively slidably connected to one side of the fixed frame; a connecting rod, the connecting rod connects the movable rod and the baffle.

[0008] In the above technical solution, further, an extension mechanism is provided at the hand wheel.

[0009] In the above technical scheme, further, the extension mechanism includes: a fixed rod, several of the fixed rods are respectively fixedly connected to the outside of the handwheel; a sleeve, the sleeve is slidably sleeved on the fixed rod; a movable groove, the movable groove is opened on the outer wall of the sleeve, and the movable groove is connected to the inside of the sleeve; a convex seat, the convex seat is fixedly connected to one end of the fixed rod, the convex seat is arranged in the movable groove and cooperates with the movable groove; an arc hole, the arc hole is opened in the convex seat, and an arc rod is movably connected in the arc hole; a limit block, the limit block is fixedly connected to one end of the arc rod; a connecting tube, several of the connecting tubes are evenly arranged on the outer wall of the sleeve, and the other end of the arc rod is clamped in the connecting tube.

[0010] In the above technical solution, further, a handle is fixedly connected to the outer end of the sleeve.

[0011] The beneficial effects of the utility model are:

[0012] 1. The choke mechanism can effectively reduce the impact force and noise of the water flow when the water flows through the water inlet pipe. The conical platform in the choke mechanism can play a buffering role when the water flow impacts, protect the internal parts of the ball valve from damage, and extend the service life of the ball valve.

[0013] 2. When the flow rate increases, the moving rod moves, and the baffles are driven to move closer to each other through the movable rod and the connecting rod to enhance the baffle effect. When the flow rate decreases, the first spring and the second spring will push the moving rod, and the baffles will reset accordingly, so that the baffle mechanism can be adaptively adjusted according to the flow rate of the fluid.

[0014] 3. The arm of force acting on the hand wheel can be increased through the extension mechanism, making it easier to rotate. The arc rod is moved to leave the connecting pipe, the position of the sleeve is adjusted, and then the arc rod is moved to enter the connecting pipe to fix the sleeve.

[0015] 4. The design of the handle not only provides a better grip, but also increases the comfort and safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the flow-blocking mechanism of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the mobile rod of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the conical table of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the extension mechanism of the utility model.

[0022] The symbols in the figure are:

[0023] 1. Valve body; 11. Water inlet pipe; 12. Water outlet pipe; 2. Hand wheel; 3. choke mechanism; 31. Fixed frame; 32. First spring; 33. Conical platform; 34. Front plate; 35. Rear plate; 36. Moving groove; 37. Moving rod; 38. Second spring; 39. Movable rod; 310. Inclined groove; 311. choke plate; 312. Connecting rod; 4. Extension mechanism; 41. Fixed rod; 42. Sleeve; 43. Movable groove; 44. Boss; 45. Arc rod; 46. Limit block; 47. Connecting pipe; 5. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] Embodiment 1:

[0027] The embodiment of the present application provides a sealing ball valve, comprising:

[0028] A valve body 1, the valve body 1 comprises a water inlet pipe 11 and a water outlet pipe 12;

[0029] Handwheel 2, handwheel 2 controls the opening and closing of the ball valve;

[0030] The flow blocking mechanism 3 includes a fixed frame 31, a first spring 32, a conical platform 33, a front plate 34 and a rear plate 35. The fixed frame 31 is fixedly connected to the water inlet pipe 11. A plurality of front plates 34 and a plurality of rear plates 35 are respectively connected to the front end outer wall and the rear end outer wall of the conical platform 33 in an annular manner and at equal distances. The first spring 32 is arranged between the rear plate 35 and the fixed frame 31.

[0031] The flow blocking mechanism 3 is arranged in the water inlet pipe 11 .

[0032] In this embodiment, refer to Figure 1 and Figure 2 As shown, the blocking mechanism 3 can effectively reduce the impact force and noise of the water flow when the water flows through the water inlet pipe 11. The conical platform 33 in the blocking mechanism 3 can play a buffering role when the water flow impacts, protect the internal parts of the ball valve from damage, and extend the service life of the ball valve.

[0033] Embodiment 2:

[0034] This embodiment provides a sealing ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the flow blocking mechanism 3 also includes:

[0035] Movable slots 36, a plurality of movable slots 36 are respectively provided on the fixed frame 31;

[0036] A moving rod 37, one end of which is slidably connected to the moving groove 36, and the other end of which is fixedly connected to the rear plate 35, and the first spring 32 is sleeved on the moving rod 37;

[0037] A second spring 38, the second spring 38 is disposed in the moving groove 36, one end of the second spring 38 is connected to the moving rod 37, and the other end of the second spring 38 is connected to the inner wall of the moving groove 36;

[0038] A movable rod 39, the movable rod 39 passes through the inner wall of the fixed frame 31, the movable rod 39 is perpendicular to the movable rod 37, and the bottom end of the movable rod 39 is set as an inclined surface;

[0039] An inclined groove 310 is provided in the movable rod 37, and an inclined surface of the movable rod 39 contacts the inclined surface of the inclined groove 310;

[0040] A spoiler 311, wherein a plurality of spoilers 311 are respectively slidably connected to one side of the fixed frame 31;

[0041] The connecting rod 312 connects the movable rod 39 and the spoiler 311 .

[0042] In this embodiment, refer to Figure 2 , Figure 3 and Figure 4 As shown, when the flow rate increases, the movable rod 37 moves, and drives the spoiler 311 to move closer to each other through the movable rod 39 and the connecting rod 312, thereby enhancing the flow blocking effect. When the flow rate decreases, the first spring 32 and the second spring 38 will push the movable rod 37, and the spoiler 311 will reset accordingly, so that the flow blocking mechanism 3 can be adaptively adjusted according to the flow rate of the fluid.

[0043] Embodiment 3:

[0044] This embodiment provides a sealed ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: an extension mechanism 4 is provided at the hand wheel 2, and the extension mechanism 4 includes:

[0045] A fixing rod 41, wherein a plurality of fixing rods 41 are respectively fixedly connected to the outside of the hand wheel 2;

[0046] A sleeve 42, the sleeve 42 is slidably sleeved on the fixing rod 41;

[0047] A movable groove 43, which is formed on the outer wall of the sleeve 42 and communicates with the interior of the sleeve 42;

[0048] A boss 44, the boss 44 is fixedly connected to one end of the fixed rod 41, and the boss 44 is disposed in the movable groove 43 and matches with the movable groove 43;

[0049] An arc-shaped hole is provided in the convex seat 44, and an arc-shaped rod 45 is movably connected in the arc-shaped hole;

[0050] A limit block 46, the limit block 46 is fixedly connected to one end of the arc rod 45;

[0051] Connecting tubes 47 , a plurality of connecting tubes 47 are evenly arranged on the outer wall of the sleeve 42 , and the other end of the arc rod 45 is clamped in the connecting tube 47 .

[0052] In this embodiment, refer to Figure 1 and Figure 5 As shown, the arm of the force acting on the hand wheel 2 can be increased by extending the mechanism 4, making it easier to rotate, moving the arc rod 45 to leave the connecting tube 47, adjusting the position of the sleeve 42, and then moving the arc rod 45 to enter the connecting tube 47 to fix the sleeve 42.

[0053] Embodiment 4:

[0054] This embodiment provides a sealed ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a handle 5 is fixedly connected to the outer end of the sleeve 42 .

[0055] In this embodiment, refer to Figure 1 and Figure 5 As shown, the design of the handle 5 not only provides a better grip, but also increases the comfort and safety of operation.

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A sealed ball valve, comprising: A valve body (1), the valve body (1) comprising a water inlet pipe (11) and a water outlet pipe (12); A hand wheel (2), the hand wheel (2) controls the opening and closing of the ball valve; It is characterized by further comprising: A flow blocking mechanism (3), the flow blocking mechanism (3) comprising a fixed frame (31), a first spring (32), a conical platform (33), a front plate (34) and a rear plate (35), the fixed frame (31) being fixedly connected in the water inlet pipe (11), a plurality of the front plates (34) and a plurality of the rear plates (35) being respectively connected in an annular manner to the front end outer wall and the rear end outer wall of the conical platform (33) at equal intervals, and the first spring (32) being arranged between the rear plate (35) and the fixed frame (31); Wherein, the flow blocking mechanism (3) is arranged in the water inlet pipe (11).

2. A sealed ball valve according to claim 1, characterized in that: The flow blocking mechanism (3) further comprises: A movable groove (36), wherein a plurality of movable grooves (36) are respectively arranged on the fixed frame (31); A moving rod (37), one end of the moving rod (37) is slidably connected in the moving groove (36), the other end of the moving rod (37) is fixedly connected to the rear plate (35), and the first spring (32) is sleeved on the moving rod (37); A second spring (38), wherein the second spring (38) is disposed in the moving groove (36), one end of the second spring (38) is connected to the moving rod (37), and the other end of the second spring (38) is connected to the inner wall of the moving groove (36); A movable rod (39), the movable rod (39) passes through the inner wall of the fixed frame (31), the movable rod (39) is perpendicular to the movable rod (37), and the bottom end of the movable rod (39) is set as an inclined surface; An inclined groove (310), wherein the inclined groove (310) is provided in the movable rod (37), and the inclined surface of the movable rod (39) contacts the inclined surface of the inclined groove (310); A spoiler (311), wherein a plurality of spoilers (311) are respectively slidably connected to one side of the fixed frame (31); A connecting rod (312), wherein the connecting rod (312) connects the movable rod (39) and the spoiler (311).

3. A sealed ball valve according to claim 1, characterized in that: An extension mechanism (4) is provided at the hand wheel (2).

4. A sealed ball valve according to claim 3, characterized in that: The extension mechanism (4) comprises: A fixing rod (41), wherein a plurality of the fixing rods (41) are respectively fixedly connected to the outside of the hand wheel (2); A sleeve (42), wherein the sleeve (42) is slidably sleeved on the fixing rod (41); A movable groove (43), wherein the movable groove (43) is formed on the outer wall of the sleeve (42), and the movable groove (43) is communicated with the interior of the sleeve (42); A convex seat (44), wherein the convex seat (44) is fixedly connected to one end of the fixed rod (41), and the convex seat (44) is arranged in the movable groove (43) and matches with the movable groove (43); An arc-shaped hole, the arc-shaped hole is formed in the convex seat (44), and an arc-shaped rod (45) is movably connected in the arc-shaped hole; A limit block (46), wherein the limit block (46) is fixedly connected to one end of the arc-shaped rod (45); A connecting tube (47), wherein a plurality of the connecting tubes (47) are evenly arranged on the outer wall of the sleeve (42), and the other end of the arc rod (45) is clamped in the connecting tube (47).

5. A sealed ball valve according to claim 4, characterized in that: The outer end of the sleeve (42) is fixedly connected to a handle (5).

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