Large-flow ball valve convenient to operate

Abstract

A large-flow ball valve convenient to operate comprises a valve shell, a ball core, a valve rod and a control handle, and the valve shell is provided with a mounting cavity, a water inlet hole, a water outlet hole and a valve rod assembling hole; a limiting mechanism for limiting the rotating angle of the valve rod is arranged between the control handle and the valve shell and provided with two limiting protruding blocks arranged at the outer end of the assembling hole and two positioning protruding blocks arranged on the side face of the control handle and located outside the outer wall of the valve rod, the two limiting protruding blocks are symmetrically arranged in the vertical direction, and the two positioning protruding blocks are provided with vertical side walls and horizontal side walls. The two limiting protruding blocks and the two positioning protruding blocks are located on the same circular ring. When the control handle is rotated until the positioning protruding block abuts against one side of the limiting protruding block, the valve rod drives the ball core to rotate and be positioned in a completely-opened state or a completely-closed state. The ball valve is provided with the limiting mechanism for limiting the rotating angle of the valve rod, the ball core can be accurately rotated and positioned in a completely-opened state, a large-flow water outlet state can be accurately positioned, operation is convenient, and the using effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a large-flow ball valve that is easy to operate. Background Art

[0002] The angle valve is a common water flow cut-off control device in daily life. The angle valve can be opened or closed to control the flow of water. The valve body of the angle valve has three openings: a water inlet, a water outlet, and a water volume control port. When in use, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the water outlet pipe for connecting to a faucet or a water heater. A valve core for controlling the opening and closing of the water outlet is provided in the water volume control port. At present, in order to achieve a large-flow water outlet effect, a ball core is generally used as the valve core, because a water flow channel of similar size to the water inlet and the water outlet can be opened on the ball core, and the ball core is driven to rotate by rotating the valve stem, so that the water inlet, the water outlet and the water flow channel are connected to achieve the purpose of large-flow water outlet. However, since the ball core rotates inside the valve body, the user cannot observe the rotation state of the ball core, cannot accurately control the water outlet volume, and the operation is inconvenient. That is, in the actual use process, the user often cannot accurately rotate the ball core to the fully open state when rotating the valve stem, so that the angle valve loses the effect of large-flow water outlet and the use effect is poor.

[0003] In view of this, the designer of this invention has made in-depth considerations and actively researched, improved and trial-produced the above-mentioned ball valve to address the many deficiencies and inconveniences caused by the imperfect structural design, and developed this design. Utility Model Content

[0004] The purpose of the utility model is to provide a large-flow ball valve that is easy to operate. A limit mechanism is provided between the control handle and the valve housing to limit the rotation angle of the valve stem, which can accurately rotate the ball core to a fully open state and can accurately position it to a large-flow water outlet state, making it easy to operate and having a better use effect.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] The cam is connected with the valve stem to form a valve cap, and the cam is connected with the valve cap to form a valve cap, and the cam is connected with the valve cap to form a valve cap.

[0007] The positioning protrusion is fan-shaped, and the center angle of the positioning protrusion is 90°.

[0008] The control handle is provided with a ring portion surrounding the outer end portion of the valve stem assembly hole, and the positioning protrusion is located on the inner ring of the ring portion.

[0009] The valve stem is provided with a straight-line positioning protrusion, and the control handle is provided with a straight-line positioning groove for inserting the straight-line positioning protrusion.

[0010] The straight-line positioning boss is provided with an internal threaded hole, and the control handle is provided with a central locking hole. A bolt is locked into the central locking hole and the internal threaded hole to fix the valve stem and the control handle together.

[0011] The control handle is in a straight line shape.

[0012] Three sealing rings are arranged between the outer wall of the valve stem and the inner wall of the valve stem assembly hole.

[0013] The valve housing comprises a main body and a water outlet joint detachably assembled on the main body; the main body is provided with a water outlet assembly hole connected to the mounting cavity; the water outlet joint is sealingly assembled on the water outlet assembly hole; and the water outlet hole is provided on the water outlet joint; the apertures of the water inlet hole and the valve stem assembly hole are smaller than the ball diameter of the ball core, the aperture of the water outlet assembly hole is larger than the ball diameter of the ball core, and the water outlet joint is provided with a necking ring for limiting the ball core from escaping from the mounting cavity.

[0014] An upper sealing seat and a lower sealing seat which are rotatably matched with the ball core seal are arranged in the installation cavity.

[0015] After adopting the above structure, when the ball valve of the utility model is used, when the control handle is rotated so that the vertical side wall of the positioning protrusion abuts against the side of the limiting protrusion, the valve stem drives the ball core to rotate along with the rotation of the control handle, and the ball core is rotated and positioned in a fully open state, the water flow channel and the water outlet hole are completely connected, the ball valve is opened, and the water outlet effect with the maximum flow rate is achieved; when the control handle is rotated so that the horizontal side wall of the positioning protrusion abuts against the side of the limiting protrusion, the valve stem drives the ball core to rotate along with the rotation of the control handle, and the ball core is rotated and positioned in a fully closed state, the water flow channel and the water outlet hole are cut off, the ball valve is closed, and the water outlet is stopped; a limiting mechanism that limits the rotation angle of the valve stem is provided between the control handle and the valve housing of the ball valve of the utility model, which can accurately rotate and position the ball core in a fully open state, and can accurately position it to a large-flow water outlet state, which is easy to operate and has a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the ball valve of the utility model;

[0017] Figure 2 This is a front view schematic diagram of the ball valve of the utility model;

[0018] Figure 3 This is a bottom view of the ball valve of the utility model;

[0019] Figure 4 for Figure 3 Schematic cross-sectional view along the AA direction;

[0020] Figure 5 This is an exploded schematic diagram of the ball valve of the utility model;

[0021] Figure 6 This is a schematic diagram of the assembly of the valve stem and the control handle of the utility model;

[0022] Figure 7 This is a schematic diagram of the valve stem and control handle of the utility model. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the valve stem and control handle of the utility model. Figure 2 ;

[0024] Figure 9 It is a side view of the control handle of the utility model.

[0025] Explanation of symbols

[0026] Valve housing 1; ball core 2; valve stem 3; control handle 4; mounting cavity 11; water inlet hole 12; water outlet hole 13; valve stem assembly hole 14; water flow channel 21; limiting protrusion 141; positioning protrusion 41; vertical side wall 411; horizontal side wall 412; ring portion 42; straight-line positioning protrusion 31; straight-line positioning groove 43; internal threaded hole 32; center lock hole 44; bolt 45; sealing ring 5; body 15; water outlet connector 16; water outlet assembly hole 151; neck ring 161; upper sealing seat 22; lower sealing seat 23. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0028] See also Figures 1 to 9 The utility model discloses a large flow ball valve that is easy to operate, including a valve housing 1, a ball core 2, a valve stem 3 and a control handle 4. The valve housing 1 is provided with an installation cavity 11 for accommodating the installation of the ball core 2 and a water inlet hole 12, a water outlet hole 13 and a valve stem assembly hole 14 respectively connected to the installation cavity 11; the ball core 2 has a water flow channel 21 respectively connected to the water inlet hole 12 and the water outlet hole 13; one end of the valve stem 3 is inserted into the outer wall of the ball core 2, and the other end passes through the valve stem assembly hole 14 and extends out of the valve housing 1 to be connected to the control handle 4; a limited space is set between the control handle 4 and the valve housing 1 A limiting mechanism for controlling the rotation angle of the valve stem 3 comprises two limiting protrusions 141 arranged at the outer end of the assembly hole 14 and two positioning protrusions 41 arranged on the side of the control handle 4 and located outside the outer wall of the valve stem 3. The two limiting protrusions 141 are symmetrically arranged up and down, and the two positioning protrusions 41 have vertical side walls 411 and horizontal side walls 412, and the two limiting protrusions 141 and the two positioning protrusions 41 are located on the same circular ring; when the control handle 4 is rotated until the vertical side wall 411 of the positioning protrusion 41 abuts against one side of the limiting protrusion 141, the valve stem 3 drives the ball core 2 to rotate and be positioned in a fully open state.

[0029] When the ball valve of the present invention is used in practice, when the control handle 4 is rotated so that the vertical side wall 411 of the positioning protrusion 41 abuts against the side of the limiting protrusion 141, the valve stem 3 rotates with the control handle 4 to drive the ball core 2 to rotate, and the ball core 2 is rotated and positioned in a fully open state, the water flow channel 21 and the water outlet hole 13 are completely connected, the ball valve is opened, and the water outlet effect with the maximum flow rate is achieved; when the control handle 4 is rotated so that the horizontal side wall 412 of the positioning protrusion 41 abuts against the side of the limiting protrusion 141, the valve stem 3 rotates with the control handle 4 to drive the ball core 2 to rotate, and the ball core 2 is rotated and positioned in a fully closed state, the water flow channel 21 and the water outlet hole 13 are cut off, the ball valve is closed, and the water outlet is stopped; a limiting mechanism is provided between the control handle 4 and the valve housing 1 of the ball valve of the present invention to limit the rotation angle of the valve stem 3, which can accurately rotate and position the ball core 2 in a fully open state, and can accurately position it to a large flow water outlet state, which is easy to operate and has a better use effect.

[0030] The positioning protrusion 41 of the present invention is fan-shaped, and the center angle of the positioning protrusion 41 is 90°; the control handle 4 rotates forward or reverse 90° to switch the ball core 2 between the fully open state and the fully closed state, which is more convenient to operate.

[0031] The control handle 4 of the present invention is provided with a ring portion 42 surrounding the outer end of the valve stem assembly hole 14, and the positioning protrusion 41 is located inside the ring portion 42; the limiting protrusion 141 and the positioning protrusion 41 are restricted to rotate within the ring portion 42, the rotation is smoother, and the ball valve switch is more stable.

[0032] The valve stem 3 of the present invention is provided with a straight-line positioning protrusion 31, and the control handle 4 is provided with a straight-line positioning groove 43 for inserting the straight-line positioning protrusion 31; so that the valve stem 3 and the control handle 4 are stably connected together, and the valve stem 3 is conveniently driven to rotate by the control handle 4.

[0033] The one-line positioning boss 31 of the present invention is provided with an internal threaded hole 32, and the control handle 4 is provided with a central locking hole 44. A bolt 45 is locked into the central locking hole 44 and the internal threaded hole 32 to fix the valve stem 3 and the control handle 4 together, so that the valve stem 3 and the control handle 4 are firmly connected together.

[0034] The control handle 4 of the present invention is in a straight line shape, which is convenient for rotation operation.

[0035] In the present invention, three sealing rings 5 ​​are provided between the outer wall of the valve stem 3 and the inner wall of the valve stem assembly hole 14 , thereby achieving a better sealing effect.

[0036] The valve housing 1 of the present invention has a main body 15 and a water outlet joint 16 that can be detachably assembled on the main body. The main body 15 is provided with a water outlet assembly hole 151 connected to the installation cavity 11, and the water outlet joint 16 is sealed and assembled on the water outlet assembly hole 151; and the water outlet hole 13 is provided on the water outlet joint 16; the apertures of the water inlet hole 12 and the valve stem assembly hole 14 are smaller than the ball diameter of the ball core 2, the aperture of the water outlet assembly hole 151 is larger than the ball diameter of the ball core 2, and the water outlet joint 16 is provided with a neck ring 161 that limits the ball core 2 from escaping from the installation cavity 11; the valve housing 1 is assembled from multiple components, and the assembly structure of the ball valve is simpler and easy to disassemble and assemble.

[0037] The installation cavity 11 of the present invention is provided with an upper sealing seat 22 and a lower sealing seat 23 which are in sealing rotation with the ball core 2; the sealing effect is good and water leakage is avoided.

[0038] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A large flow ball valve that is easy to operate, characterized by: The cam is connected to the valve body through the cam, and the cam is connected to the control handle by the cam.

2. A high-flow ball valve that is easy to operate as claimed in claim 1, characterized in that: The positioning protrusion is fan-shaped, and the center angle of the positioning protrusion is 90°.

3. A high-flow ball valve that is easy to operate as claimed in claim 1, characterized in that: The control handle is provided with a ring portion surrounding the outer end portion of the valve stem assembly hole, and the positioning protrusion is located on the inner ring of the ring portion.

4. A high-flow ball valve that is easy to operate as claimed in claim 1, characterized in that: The valve stem is provided with a straight-line positioning protrusion, and the control handle is provided with a straight-line positioning groove for inserting the straight-line positioning protrusion.

5. A high flow ball valve that is easy to operate as claimed in claim 4, characterized in that: The straight-line positioning boss is provided with an internal threaded hole, and the control handle is provided with a central locking hole. A bolt is locked into the central locking hole and the internal threaded hole to fix the valve stem and the control handle together.

6. The easy-to-operate large flow ball valve according to claim 1, characterized in that: Three sealing rings are arranged between the outer wall of the valve stem and the inner wall of the valve stem assembly hole.

7. The easy-to-operate large flow ball valve according to claim 1, characterized in that: The valve housing comprises a main body and a water outlet joint detachably assembled on the main body; the main body is provided with a water outlet assembly hole connected to the mounting cavity; the water outlet joint is sealingly assembled on the water outlet assembly hole; and the water outlet hole is provided on the water outlet joint; the apertures of the water inlet hole and the valve stem assembly hole are smaller than the ball diameter of the ball core, the aperture of the water outlet assembly hole is larger than the ball diameter of the ball core, and the water outlet joint is provided with a necking ring for limiting the ball core from escaping from the mounting cavity.

8. The easy-to-operate large flow ball valve according to claim 1, characterized in that: An upper sealing seat and a lower sealing seat which are rotatably matched with the ball core seal are arranged in the installation cavity.

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