阅读说明：本技术 一种全功能型软密封球阀 (Full-functional type soft sealing ball valve ) 是由 张崇彪 于 2020-06-29 设计创作，主要内容包括：本发明提供一种全功能型软密封球阀,涉及球阀技术领域。该全功能型软密封球阀,包括阀体,所述阀体之间螺纹连接有螺母,所述阀体的顶部固定安装有阀座,所述阀座的顶端固定安装有高平台,所述阀座的内部转动连接有阀杆,所述阀杆的顶部通过紧固螺栓固定连接有手柄,所述阀座内部阀杆的外围套设有压盖,所述阀杆外围压盖的下方放置有填料,所述阀杆外围填料的下方套设有限位密封圈。该全功能型软密封球阀,保证了阀杆的同心转动以及阀杆处的密封性,避免了手柄长时间往复移动后容易出现松动和脱落的现象,具有防火和防静电功能,提高了阀门调节的精度,减小了密封阀座与阀球之间的接触面积,进而提高阀门开关的灵活性。(The invention provides a full-functional soft sealing ball valve, and relates to the technical field of ball valves. This full functional type soft sealing ball valve, including the valve body, threaded connection has the nut between the valve body, the top fixed mounting of valve body has the disk seat, the top fixed mounting of disk seat has high platform, the inside of disk seat is rotated and is connected with the valve rod, fastening bolt fixedly connected with handle is passed through at the top of valve rod, the peripheral cover of the inside valve rod of disk seat is equipped with the gland, the filler has been placed to the below of the peripheral gland of valve rod, the below cover of the peripheral filler of valve rod is equipped with limit seal. This full functional type soft sealing ball valve has guaranteed the leakproofness of the concentric rotation of valve rod and valve rod department, has avoided appearing not hard up and the phenomenon that drops easily after the long-time reciprocating motion of handle, has the fire prevention and prevents the static function, has improved the precision of valve adjustment, has reduced the area of contact between sealed disk seat and the valve ball, and then has improved the flexibility of valve switch.)

1. The utility model provides a full functional type soft sealing ball valve, includes valve body (1), its characterized in that: a nut (2) is connected between the valve bodies (1) in a threaded manner, a valve seat (3) is fixedly arranged at the top of the valve bodies (1), a high platform (4) is fixedly arranged at the top end of the valve seat (3), a valve rod (5) is rotatably connected inside the valve seat (3), the top of the valve rod (5) is fixedly connected with a handle (7) through a fastening bolt (6), a gland (8) is sleeved on the periphery of the valve rod (5) in the valve seat (3), a packing (9) is arranged below a peripheral gland (8) of the valve rod (5), a limiting sealing ring (10) is sleeved below the packing (9) on the periphery of the valve rod (5), the bottom fixed mounting of valve rod (5) has valve ball (11), the peripheral fixedly connected with sealing valve seat (12) of valve ball (11) in disk seat (3), the bottom swivelling joint of valve ball (11) has spring (13).

2. The fully functional soft seal ball valve of claim 1, wherein: the valve body (1) is divided into a left valve body and a right valve body, the two valve bodies (1) are fixedly connected through nuts (2), and connectors are formed in the left end and the right end of each valve body (1).

3. The fully functional soft seal ball valve of claim 1, wherein: the number of the fastening bolts (6) is three, the fastening bolts are respectively positioned on the front side and the rear side of the left end of the handle (7) and on the rotating center of the left end of the handle (7), and the screwing direction of the fastening bolts (6) on the rotating center is the same as the rotating direction of the handle (7) when the handle is opened.

4. The fully functional soft seal ball valve of claim 1, wherein: the gland (8) and the peripheral packing (9) of the valve rod (5) are in a conical shape, and a gap is reserved between the gland and the peripheral packing.

5. The fully functional soft seal ball valve of claim 1, wherein: and the valve seat (3) and the valve body (1) are sealed by hard touch of a high-precision conical surface.

6. The fully functional soft seal ball valve of claim 1, wherein: the sealing valve seat (12) is fixedly connected with the inside of the valve seat (3) and symmetrically distributed on the left side and the right side of the valve ball (11), the contact surface of the sealing valve seat (12) and the valve ball (11) is trapezoidal, and the sealing valve seat (12) is made of polytetrafluoroethylene.

7. The fully functional soft seal ball valve of claim 1, wherein: the top end of the spring (13) extends upwards to the interior of the valve ball (11) and is in rotary connection with the valve ball (11), and the material of the spring (13) is Inconel X-750.

Technical Field

The invention relates to the technical field of ball valves, in particular to a full-functional soft sealing ball valve.

Background

The ball valve is that the opening and closing piece is driven by the valve rod, and the valve of making rotary motion around the ball valve axis is used for adjusting and controlling the fluid, and along with the development of science and technology, for satisfying different service environment, the kind of present ball valve is also more and more, but still has following not enough:

firstly, in the use process, the valve rod is meshed with the gland, so that in the rotating process of the valve rod, the abrasion of the valve rod is aggravated, the concentricity of the valve rod is reduced, and the sealing performance of the valve rod is reduced.

Secondly, the traditional ball valve has poor fireproof and antistatic capabilities, is easy to be interfered by the outside and reduces the precision of valve adjustment.

And thirdly, in the use process of the traditional ball valve, the handle is easy to loosen and fall off after long-term use due to the need of frequently rotating the handle.

And fourthly, the sealing valve seat on the periphery of the valve ball inside the traditional ball valve is arc-shaped, and the contact area of the sealing valve seat and the valve ball is large, so that the friction force when the valve ball rotates is increased, and the flexibility of the valve switch is reduced.

In order to solve the problems, the inventor provides a full-functional soft sealing ball valve, which ensures the concentric rotation of a valve rod and the sealing performance of the valve rod, avoids the phenomenon that a handle is easy to loosen and fall off after reciprocating for a long time, has the functions of fire prevention and static electricity prevention, improves the precision of valve adjustment, reduces the contact area between a sealing valve seat and the valve ball, and further improves the flexibility of valve opening and closing.

Disclosure of Invention

In order to achieve the purpose, the invention is realized by the following technical scheme: a full-functional soft sealing ball valve comprises a valve body, a nut, a valve seat, a high platform, a valve rod, a fastening bolt, a handle, a gland, a filler, a limiting sealing ring, a valve ball, a sealing valve seat and a spring.

Wherein:

threaded connection has the nut between the valve body, the top fixed mounting of valve body has the disk seat, the top fixed mounting of disk seat has high platform, the inside rotation of disk seat is connected with the valve rod, fastening bolt fixedly connected with handle is passed through at the top of valve rod, the peripheral cover of the inside valve rod of disk seat is equipped with the gland, the filler has been placed to the below of the peripheral gland of valve rod, the below cover of the peripheral filler of valve rod is equipped with limit seal circle, the bottom fixed mounting of valve rod has the valve ball, the peripheral fixedly connected with seal disk seat of the inside valve ball of disk seat, the bottom of valve ball is rotated and is connected with the spring.

Preferably, the valve body divide into about two, two pass through nut fixed connection between the valve body, just the connector has all been seted up at both ends about the valve body for the valve body can be disassembled, is convenient for be connected to the valve body in the fluid pipeline.

Preferably, the fastening bolt's quantity is three altogether, is located the front and back both sides of handle left end respectively to and the center of rotation department of handle left end, and the direction of screwing of center of rotation department fastening bolt is the same with rotatory direction when the handle is opened, and then is favorable to improving the fastness of being connected between handle and the valve rod, the not hard up that produces when avoiding handle reciprocating motion.

Preferably, a gap is reserved between the gland and the packing on the periphery of the valve rod, so that the function of preventing the gland from being bitten by the valve rod is achieved, and the abrasion of the valve rod is reduced.

Preferably, the valve seat and the valve body are sealed by hard touch of a high-precision conical surface, so that the fireproof effect of the valve is improved, and the concentricity of the valve seat is ensured.

Preferably, the sealing valve seat is fixedly connected with the inside of the valve seat and symmetrically distributed on the left side and the right side of the valve ball, the contact surface of the sealing valve seat and the valve ball is trapezoidal, the sealing valve seat is made of polytetrafluoroethylene, the sealing performance between the sealing valve seat and the valve ball is guaranteed, the contact area between the sealing valve seat and the valve ball is reduced, and the flexibility of a valve switch is improved.

Preferably, the top end of the spring extends upwards to the inside of the valve ball and is rotatably connected with the valve ball, and the spring is made of Inconel X-750, so that the spring has an antistatic function and simultaneously ensures the concentric rotation of the valve ball.

The invention provides a full-functional soft sealing ball valve. The method has the following beneficial effects:

1. this all-functional type soft sealing ball valve through threaded connection's three fastening bolt between handle and the valve rod to and handle center of rotation department fastening bolt direction of screwing and the same design of direction of rotation when the handle is opened, can improve the fastness of handle connection, the phenomenon that appears becoming flexible and droing easily after having avoided the long-time reciprocating motion of handle.

2. This all-functional type soft sealing ball valve is conical design through the contact surface between gland and the peripheral filler of valve rod, can play the effect of preventing stinging to gland and valve rod, and then reduces the wearing and tearing of valve rod, has guaranteed the leakproofness of the concentric rotation of valve rod and valve rod department.

3. This full functional type soft seal ball valve bumps hard through the hardness of the high accuracy conical surface between disk seat and the valve body and seals, has improved the fire prevention effect of valve, has ensured the concentricity of disk seat, cooperates the design of valve ball bottom spring simultaneously to and the antistatic material that spring and spacing sealing washer adopted, can make the valve possess the function of preventing static, guarantee the concentric rotation of valve ball simultaneously, and then improved the precision that the valve was adjusted.

4. This soft sealing ball valve of full functional type personally submits trapezoidal design through the contact surface of sealed disk seat and valve ball, when guaranteeing the leakproofness between sealed disk seat and the valve ball, has reduced the area of contact between sealed disk seat and the valve ball, and then improves valve switch's flexibility.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a cross-sectional view of the structure of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 3A in accordance with the present invention;

fig. 5 is an enlarged view of the structure of fig. 3 at B according to the present invention.

In the figure: 1. a valve body; 2. a nut; 3. a valve seat; 4. a high platform; 5. a valve stem; 6. fastening a bolt; 7. a handle; 8. a gland; 9. a filler; 10. a limit sealing ring; 11. a valve ball; 12. sealing the valve seat; 13. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the full-functional soft sealing ball valve is as follows:

referring to fig. 1-5, a fully functional soft seal ball valve includes a valve body 1, a nut 2, a valve seat 3, a high platform 4, a valve stem 5, a fastening bolt 6, a handle 7, a gland 8, a packing 9, a limit seal ring 10, a valve ball 11, a seal valve seat 12, and a spring 13.

Wherein:

the valve comprises a valve body 1, a nut 2, a valve body 1, a valve seat 3, a handle 7, a fastening bolt 6, a handle 7, a plurality of fastening bolts 6, a nut 2, a rotating center of the handle 7 and a rotating center of the left end of the handle 7, wherein the nut 2 is connected between the valve body 1 and the valve body 1 in a threaded manner, the valve body 1 is divided into a left valve body and a right valve body, the two valve bodies 1 are fixedly connected through the nut 2, and the left end and the right end of the valve body 1 are both provided with connecting ports, so that the valve body 1 can be disassembled, the valve body 1 can be conveniently connected into a fluid pipeline, the top of the valve body 1 is fixedly provided with the valve seat 3, the valve seat 3 and the valve body 1 are sealed by hard collision of a high-precision conical surface, the fireproof effect of the valve is improved, the concentricity of the valve seat 3 is, further, the connection firmness between the handle 7 and the valve rod 5 is improved, looseness generated when the handle 7 reciprocates is avoided, a gland 8 is sleeved on the periphery of the valve rod 5 inside the valve seat 3, the gland 8 and a packing 9 on the periphery of the valve rod 5 are conical, a gap is reserved between the gland 8 and the packing 9 on the periphery of the valve rod 5, and further, the gland 8 and the valve rod 5 are prevented from being bitten, abrasion of the valve rod 5 is reduced, the packing 9 is placed below the gland 8 on the periphery of the valve rod 5, a limiting seal ring 10 is sleeved below the packing 9 on the periphery of the valve rod 5, a valve ball 11 is fixedly installed at the bottom end of the valve rod 5, a seal valve seat 12 is fixedly connected to the periphery of the valve ball 11 inside the valve seat 3, the seal valve seat 12 is fixedly connected to the inside of the valve seat 3 and symmetrically distributed on the left side and the right side of the valve ball 11, the contact surface of the seal seat 12 and the, reduced the area of contact between sealed disk seat 12 and the valve ball 11, and then improved valve switch's flexibility, the bottom of valve ball 11 is rotated and is connected with spring 13, and the top of spring 13 upwards extends to the inside of valve ball 11, and rotates with valve ball 11 and be connected, and spring 13's material is InconelX-750 for spring 13 has the function of preventing static, guarantees the concentric rotation of valve ball 11 simultaneously.

When using, utilize the design of the left and right sides connector of valve body 1, can be with valve body 1 fixed connection in fluid pipeline, then utilize the fixed connection of valve rod 5 and handle 7, drive valve rod 5 through turning handle 7 and rotate, and then drive the valve ball 11 of bottom and rotate, make valve ball 11 and the inside communicating fluid of valve body 1 change through the area, and then realize regulation and control to fluid.

The three fastening bolts 6 in threaded connection between the handle 7 and the valve rod 5, and the design that the screwing direction of the fastening bolt 6 at the rotating center of the handle 7 is the same as the rotating direction of the handle 7 when the handle 7 is opened, can improve the connection firmness of the handle 7, avoid the phenomenon that the handle 7 is easy to loosen and fall off after long-time reciprocating movement, can play a bite-proof effect on the gland 8 and the valve rod 5 by the conical design of the contact surface between the gland 8 and the peripheral packing 9 of the valve rod 5, further reduce the abrasion of the valve rod 5, ensure the concentric rotation of the valve rod 5 and the sealing performance at the valve rod 5, improve the fireproof effect of the valve by hard-touch and hard-seal of a high-precision conical surface between the valve seat 3 and the valve body 1, ensure the concentricity of the valve seat 3, simultaneously cooperate with the design of the spring 13 at the bottom end of the valve ball 11, and the antistatic materials adopted by the spring, can make the valve possess the function of preventing static, guarantee the concentric rotation of valve ball 11 simultaneously, and then improve the precision of valve regulation, personally submit trapezoidal design through the contact of sealed disk seat 12 with valve ball 11, when guaranteeing the leakproofness between sealed disk seat 12 and the valve ball 11, reduced the area of contact between sealed disk seat 12 and the valve ball 11, and then improve the flexibility of valve switch.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.