Angle valve

Abstract

The angle valve comprises a valve body, a valve rod, a ball core and a valve seat, the valve body comprises a cylindrical main body, one end of the cylindrical main body is provided with a first opening, the other end of the cylindrical main body is provided with a cover body, and the cover body is provided with a valve rod hole for the valve rod to penetrate out; an inserting hole is further formed in the barrel wall of the barrel-shaped main body, a barrel-shaped support is inserted in the inserting hole, and the barrel-shaped support is welded to an opening of the inserting hole; the end, facing the inner cavity of the cylindrical body, of the cylindrical support abuts against the inner wall of the cylindrical body. A water passing hole is formed in the side wall of the side, corresponding to the first opening, of the cylindrical support, and a limiting hole is formed in the side wall of the side, corresponding to the valve rod hole, of the cylindrical support; the ball core is located in the cylindrical support, and a second opening is formed in the end, away from the inner cavity of the cylindrical body, of the cylindrical support. The utility model has the advantages that the material cost is saved, and the structure and process are simple.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to an angle valve. Background Art

[0002] Existing angle valves are generally produced by forgings or foundry parts. A large amount of material is removed during the later processing to form the necessary shape and structure of the main body. For a 90-degree angle valve, since the inlet and outlet are 90 degrees apart, two interfaces need to be reserved on the main body to ensure the installation of the ball core and the valve seat. Therefore, the main body cannot be produced in the form of a rotating body in the blank state, so the material cost is high and the overall weight of the finished product is heavy. Utility Model Content

[0003] Based on the above problems, the purpose of the utility model is to provide an angle valve based on a rotating body profile as a main body to save material costs, reduce weight, and have a simple structure and process and low production cost.

[0004] In view of the above problems, the following technical solutions are provided: an angle valve, comprising a valve body, a valve stem, a ball core and a valve seat, wherein the valve body comprises a cylindrical body, one end of the cylindrical body is provided with a first opening, the other end of the cylindrical body is provided with a cover body, the cover body is provided with a valve stem hole for the valve stem to pass through; a plug hole opened along its radial direction is also opened on the cylindrical wall of the cylindrical body, a cylindrical bracket is inserted in the plug hole, and the cylindrical bracket is welded to the plug hole; one end of the cylindrical bracket facing the inner cavity of the cylindrical body crosses the entire inner cavity of the cylindrical body and then abuts against the inner wall of the cylindrical body; the cylindrical bracket corresponds to the first A water through hole coaxially arranged with the cylindrical body is provided on the side wall on one side of the opening, and a limiting hole coaxially arranged with the cylindrical body is provided on the side wall of the cylindrical bracket corresponding to the valve stem hole; the ball core is located in the cylindrical bracket, and the valve stem passes through the limiting hole and docks with the ball core to drive the ball core to rotate; a first water through hole coaxially arranged with the cylindrical body is provided on the side of the ball core facing the first opening, and the ball core is also provided with a second water through hole arranged at 90 degrees to the axis of the first water through hole; the valve seat is located on both sides of the ball core in the axial direction of the cylindrical bracket, and a second opening is provided at one end of the cylindrical bracket away from the inner cavity of the cylindrical body.

[0005] The utility model is further configured that the cover body is welded and fixed to the end of the cylindrical body; the diameter of the water passage hole is greater than or equal to the diameter of the limiting hole.

[0006] The utility model is further configured that one end of the cylindrical bracket away from the inner cavity of the cylindrical body is provided with a pre-pressed piece that cooperates with its thread and is used to push the valve seat and the ball core to fit tightly; the end face of the pre-pressed piece is provided with an end face groove for accommodating the valve seat.

[0007] The utility model is further configured such that the second opening is located on the pre-pressed component, and the outer wall of the pre-pressed component is provided with a second docking thread.

[0008] The utility model is further configured that one end of the cylindrical body provided with the first opening is provided with a first butt thread.

[0009] The utility model is further configured that the cylindrical body and the cylindrical bracket are both formed by cutting and blanking pipe materials.

[0010] The utility model is further configured that the valve seat at one end of the cylindrical support facing the inner cavity of the cylindrical body is provided with a fitting surface that fits the curvature of the inner wall of the cylindrical body.

[0011] The utility model is further configured such that one end of the valve stem located in the inner cavity of the cylindrical body is provided with an anti-blowout step; the end surface of the valve stem located in the inner cavity of the cylindrical body is also provided with a torsion protrusion arranged along its radial direction; and the ball core is provided with a torsion groove engaged with the torsion protrusion.

[0012] The utility model is further configured that the inner wall of the limiting hole is also provided with a limiting block adapted to the torsion protrusion to limit the rotation angle of the valve stem.

[0013] The utility model is further configured that a valve cavity is provided in the cylindrical body, the cylindrical bracket is inserted into the valve cavity, and the outer diameter of the cylindrical bracket is less than or equal to the inner diameter of the valve cavity.

[0014] The beneficial effects of the utility model are as follows: the cylindrical main body and the cylindrical bracket are both rotating bodies rather than special-shaped parts, so they can be directly processed by turning and laser cutting, with high material utilization rate. The two are fixed by welding to jointly construct the valve body, which can save more material costs compared with the existing one-piece structure, and is also beneficial to process optimization and weight reduction; the cylindrical bracket can also provide support and limit for the ball core and the valve seat, effectively ensuring the coaxiality of the ball core and the valve seat, and improving installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a first full-section stereoscopic structural schematic diagram of the utility model.

[0017] Figure 3 It is a second full-section stereoscopic structural schematic diagram of the utility model.

[0018] Figure 4 It is a schematic diagram of the third full-section three-dimensional structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the explosion three-dimensional structure of the utility model.

[0020] Figure 6 It is a schematic diagram of the exploded full-section three-dimensional structure of the utility model.

[0021] Meaning of the numbers in the figure: 10-valve body; 11-cylindrical main body; 111-first opening; 112-plug-in hole; 113-first docking thread; 114-valve chamber; 20-valve stem; 21-sealing ring; 22-anti-blowout step; 23-torsion protrusion; 30-ball core; 31-first water hole; 32-second water hole; 33-torsion groove; 40-valve seat; 41-fitting surface; 50-cover body; 51-valve stem hole; 60-cylindrical bracket; 61-water hole; 62-limiting hole; 621-limiting block; 63-second opening; 70-pre-pressed piece; 71-end face groove; 72-second docking thread. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] refer to Figures 1 to 6 ,like Figures 1 to 6 The angle valve shown in the figure comprises a valve body 10, a valve stem 20, a ball core 30 and a valve seat 40, wherein the valve body 10 comprises a cylindrical body 11, wherein one end of the cylindrical body 11 is provided with a first opening 111, and the other end of the cylindrical body 11 is provided with a cover body 50, wherein the cover body 50 is provided with a valve stem hole 51 for the valve stem 20 to pass through; a plug hole 112 is also provided on the cylindrical wall of the cylindrical body 11 along its radial direction, wherein a cylindrical bracket 60 is inserted into the plug hole 112, and the cylindrical bracket 60 is welded to the orifice of the plug hole 112; an end of the cylindrical bracket 60 facing the inner cavity of the cylindrical body 11 traverses the entire inner cavity of the cylindrical body 11 and then abuts against the inner wall of the cylindrical body 11; the cylindrical bracket 60 corresponds to one side of the first opening 111 A water through hole 61 coaxially arranged with the cylindrical body 11 is provided on its side wall, and a limiting hole 62 coaxially arranged with the cylindrical body 11 is provided on the side wall of the cylindrical bracket 60 corresponding to the valve stem hole 51; the ball core 30 is located in the cylindrical bracket 60, and the valve stem 20 passes through the limiting hole 62 to dock with the ball core 30 to drive the ball core 30 to rotate; a first water through hole 31 coaxially arranged with the cylindrical body 11 is provided on the side of the ball core 30 facing the first opening 111, and the ball core 30 is also provided with a second water through hole 32 arranged at 90 degrees to the axis of the first water through hole 31; the valve seat 40 is located on both sides of the ball core 30 in the axial direction of the cylindrical bracket 60, and a second opening 63 is provided at one end of the cylindrical bracket 60 away from the inner cavity of the cylindrical body 11.

[0024] In the above structure, the cylindrical main body 11 and the cylindrical bracket 60 are both rotating bodies rather than special-shaped parts, so they can be directly processed by turning and laser cutting, with high material utilization rate. The two are fixed by welding to jointly construct the valve body 10, which can save more material costs compared with the existing one-piece structure, and is also beneficial to process optimization and weight reduction; the cylindrical bracket 60 can also provide support and limit for the ball core 30 and the valve seat 40, effectively ensuring the coaxiality of the ball core 30 and the valve seat 40, and improving the installation accuracy.

[0025] In this embodiment, the cover body 50 is fixed to the end of the cylindrical body 11 by welding; the diameter of the water passing hole 61 is greater than or equal to the diameter of the limiting hole 62 .

[0026] In the above structure, the welding fixation method can save more materials than the traditional threaded method, and can also effectively avoid sealing problems; due to the high temperature during welding, the valve stem 20 is installed after welding to avoid high temperature damaging the sealing ring 21 on the valve stem 20. When installing, the valve stem 20 is inserted from the first opening 111, passes through the water hole 61 and the limiting hole 62 to reach the valve stem hole 51, so the diameter of the water hole 61 is greater than or equal to the diameter of the limiting hole 62 to facilitate the passage of the valve stem 20.

[0027] In this embodiment, the end of the cylindrical bracket 60 away from the inner cavity of the cylindrical body 11 is provided with a pre-pressed piece 70 that cooperates with its thread and is used to push the valve seat 40 and the ball core 30 to fit tightly together; the end face of the pre-pressed piece 70 is provided with an end face groove 71 for accommodating the valve seat 40.

[0028] In the above structure, the pre-pressed piece 70 is used to provide extrusion force to make the valve seats 40 on both sides of the ball core 30 in close contact with the ball core 30, thereby ensuring the sealing between the ball core 30 and the valve seat 40; during installation, the pre-pressed piece 70 can pre-install one of the valve seats 40 into the end face groove 71 for fixation, thereby avoiding the valve seat 40 being skewed due to direct installation into the valve seat 40.

[0029] In this embodiment, the second opening 63 is located on the pre-pressed component 70 , and a second docking thread 72 is disposed on an outer wall of the pre-pressed component 70 .

[0030] In the above structure, a hexagonal through hole is provided in the pre-pressed part 70, and a hexagonal wrench is used to lock the pre-pressed part 70; the second docking thread 72 is used to install the docking pipe.

[0031] In this embodiment, one end of the cylindrical body 11 having the first opening 111 is provided with a first butt thread 113 .

[0032] In the above structure, the first docking thread 113 is used to install the docking pipe.

[0033] In this embodiment, the cylindrical body 11 and the cylindrical support 60 are both made by cutting and blanking pipes.

[0034] In the above structure, the cylindrical body 11 and the cylindrical bracket 60 are preferably made of stainless steel pipes or brass pipes, and the profiles can be directly purchased, which can effectively reduce material costs. The material of the cover body 50 is the same as that of the cylindrical body 11 and the cylindrical bracket 60 to ensure weldability.

[0035] In this embodiment, the valve seat 40 at one end of the cylindrical support 60 facing the inner cavity of the cylindrical body 11 is provided with a fitting surface 41 that fits the curvature of the inner wall of the cylindrical body 11 .

[0036] In the above structure, the fitting surface 41 can effectively improve the supporting performance of the valve seat 40 .

[0037] In this embodiment, the valve stem 20 is provided with an anti-blowout step 22 at one end located in the inner cavity of the cylindrical body 11; the valve stem 20 is also provided with a torsion protrusion 23 arranged along its radial direction on its end face at one end located in the inner cavity of the cylindrical body 11; the ball core 30 is provided with a torsion groove 33 engaged with the torsion protrusion 23.

[0038] In the above structure, the anti-blowout step 22 can prevent the valve stem 20 from falling out.

[0039] In this embodiment, the inner wall of the limiting hole 62 is further provided with a limiting block 621 adapted to the torsion protrusion 23 to limit the rotation angle of the valve stem 20 .

[0040] In the above structure, the torsion protrusion 23 and the limit block 621 are adapted to limit the rotation angle of the valve stem 20 and the ball core 30 so that the rotation angle is kept within the range of 90 degrees to ensure the accuracy of valve opening and closing.

[0041] In this embodiment, a valve cavity 114 is provided in the cylindrical body 11 , and the cylindrical bracket 60 is inserted into the valve cavity 114 . The outer diameter of the cylindrical bracket 60 is smaller than or equal to the inner diameter of the valve cavity 114 .

[0042] In the above structure, the insertion of the cylindrical bracket 60 can be effectively guaranteed; the fitting surface 41 fits with the inner wall of the valve cavity 114 .

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An angle valve, comprising a valve body, a valve stem, a ball core and a valve seat, characterized in that: The valve body comprises a cylindrical body, one end of which is provided with a first opening, and the other end of which is provided with a cover body, and the cover body is provided with a valve stem hole for the valve stem to pass through; a plug hole is also provided on the wall of the cylindrical body along its radial direction, a cylindrical bracket is inserted into the plug hole, and the cylindrical bracket is welded to the plug hole; one end of the cylindrical bracket facing the inner cavity of the cylindrical body crosses the entire inner cavity of the cylindrical body and then abuts against the inner wall of the cylindrical body; a side wall of the cylindrical bracket corresponding to the first opening is provided with a coaxial A water-passing hole is provided, and a limiting hole is provided on the side wall of the cylindrical bracket corresponding to the valve stem hole and is coaxially arranged with the cylindrical body; the ball core is located in the cylindrical bracket, and the valve stem passes through the limiting hole and docks with the ball core to drive the ball core to rotate; a first water-passing hole is provided on the side of the ball core facing the first opening and is coaxially arranged with the cylindrical body, and the ball core is also provided with a second water-passing hole which is arranged at 90 degrees to the axis of the first water-passing hole; the valve seat is located on both sides of the ball core in the axial direction of the cylindrical bracket, and a second opening is provided at one end of the cylindrical bracket away from the inner cavity of the cylindrical body.

2. An angle valve according to claim 1, characterized in that: The cover body is welded and fixed to the end of the cylindrical body; the diameter of the water-passing hole is greater than or equal to the diameter of the limiting hole.

3. An angle valve according to claim 1, characterized in that: The end of the cylindrical support away from the inner cavity of the cylindrical body is provided with a pre-pressed piece that cooperates with its thread and is used to push the valve seat and the ball core to fit tightly; the end face of the pre-pressed piece is provided with an end face groove for accommodating the valve seat.

4. An angle valve according to claim 3, characterized in that: The second opening is located on the pre-pressed component, and the outer wall of the pre-pressed component is provided with a second docking thread.

5. An angle valve according to claim 1, characterized in that: The end of the cylindrical body having the first opening is provided with a first butt thread.

6. An angle valve according to claim 1, characterized in that: The cylindrical body and the cylindrical support are both made by cutting and blanking pipes.

7. An angle valve according to claim 1, characterized in that: The valve seat at one end of the cylindrical support facing the inner cavity of the cylindrical body is provided with a fitting surface that fits the curvature of the inner wall of the cylindrical body.

8. An angle valve according to claim 1, characterized in that: The valve stem is provided with an anti-blowout step at one end of the inner cavity of the cylindrical body; the end surface of the valve stem is also provided with a torsion lug arranged along its radial direction; the ball core is provided with a torsion groove engaged with the torsion lug.

9. An angle valve according to claim 8, characterized in that: The inner wall of the limiting hole is also provided with a limiting block adapted to the torsion protrusion to limit the rotation angle of the valve stem.

10. An angle valve according to claim 1, characterized in that: A valve cavity is arranged in the cylindrical body, and the cylindrical bracket is inserted into the valve cavity. The outer diameter of the cylindrical bracket is smaller than or equal to the inner diameter of the valve cavity.

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