CN217272037U - Leak-proof ball valve rod with high sealing performance - Google Patents

Abstract

The utility model is suitable for a ball valve rod correlation technique field provides a leak-proof ball valve rod that sealing performance is high, including the valve body, its characterized in that is connected with the valve rod on the valve body, two joint rods that the both sides fixedly connected with symmetry of valve rod set up, the first sealing ring of upper end fixedly connected with of valve body, the outside cover of valve rod and joint rod is equipped with first sealed section of thick bamboo, the lower extreme and the valve body contact of first sealed section of thick bamboo, the side and the first seal ring contact of first sealed section of thick bamboo, the outside of first sealed section of thick bamboo is provided with first seal assembly, the utility model discloses a setting of first seal assembly rotates the sealed section of thick bamboo of second through the rotor plate in the first sealed section of thick bamboo outside for the operation is sealed to the second rubber seal who sets up on the first sealing ring.

Description

Leak-proof ball valve rod with high sealing performance

Technical Field

The utility model belongs to the technical field of the ball valve rod is relevant, especially, relate to a leak protection ball valve rod that sealing performance is high.

Background

Ball valves have been developed in the century, with the rapid development of science and technology and the continuous improvement of production technology and product structure, in a short time of the year, they have been rapidly developed into a main valve class, which has the action of rotation degree, the cock body is a sphere, has a circular through hole or a channel passing through its axis, the ball valve is mainly used for cutting, distributing and changing the flowing direction of the medium in the pipeline, it only needs the operation of rotation degree and a small rotation torque to close tightly, the ball valve is most suitable for being used as a switch and a cut-off valve, the sphere is driven by a valve rod, and the valve rotating around the axis of the ball valve can also be used for the regulation and control of fluid.

The existing ball valve generally comprises a ball valve body and a valve rod, but the existing ball valve has some defects when in use, and the existing valve rod has the condition that the sealing performance of the joint is not good enough, so that certain potential safety hazards exist.

Based on this, a leak-proof ball valve stem having high sealing performance, which can solve the above-mentioned problems, is now proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leak protection ball valve rod that sealing performance is high has some weak points when aiming at solving present ball valve and using, and present valve rod has the not enough good condition of junction leakproofness, and this will have the problem of certain potential safety hazard.

The utility model discloses a realize like this, a leak protection ball valve rod that sealing performance is high, which comprises a valve body, be connected with the valve rod on the valve body, two joint bars that the both sides fixedly connected with symmetry of valve rod set up, the first sealing ring of upper end fixedly connected with of valve body, the outside cover of valve rod and joint bar is equipped with first sealed section of thick bamboo, the lower extreme and the valve body contact of first sealed section of thick bamboo, the side and the first seal ring contact of first sealed section of thick bamboo, the outside of first sealed section of thick bamboo is provided with first seal assembly.

Preferably, a first rubber sealing ring is fixedly connected to one side of the first sealing cylinder, which is in contact with the valve body.

Preferably, first seal assembly includes the sealed section of thick bamboo of second, the outside of the sealed section of thick bamboo of first is provided with the external screw thread, the sealed section of thick bamboo screw thread of second rotates and connects in the outside of the sealed section of thick bamboo of first, the side equipartition of the sealed section of thick bamboo of second has a plurality of rotor plates, the lower extreme and the valve body contact of the sealed section of thick bamboo of second, the lower extreme fixedly connected with of the sealed section of thick bamboo of second and first sealing ring and the first second sealing ring of sealed section of thick bamboo complex.

Preferably, the upper end of the second sealing ring is fixedly connected with a second rubber sealing ring.

Preferably, a second sealing assembly is further arranged on the outer side of the valve rod.

Preferably, the second seal assembly includes that the cover establishes the third sealed section of thick bamboo in the valve rod outside, the connecting cylinder that the side fixedly connected with symmetry of the sealed section of thick bamboo of second set up, be provided with the spread groove in the connecting cylinder, be provided with the joint ball in the spread groove, the inboard of joint ball is through first spring coupling in the spread groove, be provided with on the sealed section of thick bamboo of third with joint ball complex joint hole, go back fixedly connected with and joint ball complex connection plate on the sealed section of thick bamboo of third, sliding connection has the bolt on the connection member, the inboard of bolt is passed through the second spring and is connected with the connection plate.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

1. through the setting of first seal assembly, rotate the sealed section of thick bamboo of second through the rotor plate in the first sealed section of thick bamboo outside for the second rubber seal who sets up on the first sealing ring carries out sealed operation.

2. Through the setting of second seal assembly, the third is sealed a section of thick bamboo and is removed along joint pole and valve rod for the joint ball joint that sets up on the second is sealed a section of thick bamboo and is received the joint on the third sealed a section of thick bamboo downthehole, and the third sealed a section of thick bamboo seals the protection, and when needing to take off the third seal assembly, the bolt is pressed, makes in the joint ball enters into the spread groove, just can take off the third sealed a section of thick bamboo, and the effectual protection that seals.

Drawings

Fig. 1 is the utility model provides a high leak protection ball valve rod's of sealing performance overall structure sketch map.

Fig. 2 is a schematic cross-sectional structural view of a leak-proof ball valve rod with high sealing performance provided by the utility model.

Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.

Fig. 4 is an enlarged structural view at B in fig. 2.

Notations for reference numerals: 1. a valve body; 2. a valve stem; 3. a clamping and connecting rod; 4. a first seal ring; 5. a first sealing cylinder; 6. a first rubber seal ring; 701. a second sealing cylinder; 702. an external thread; 703. a rotating plate; 704. a second seal ring; 8. a second rubber seal ring; 901. a third sealing cylinder; 902. a connecting cylinder; 903. connecting grooves; 904. clamping the ball; 905. a first spring; 906. a clamping hole; 907. connecting the plate members; 908. a bolt; 909. a second spring.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

The embodiment of the utility model provides a leak protection ball valve rod that sealing performance is high, as shown in fig. 1-4, including valve body 1, be connected with valve rod 2 on the valve body 1, two joint rods 3 that the both sides fixedly connected with symmetry of valve rod 2 set up, the first sealing ring 4 of upper end fixedly connected with of valve body 1, the outside cover of valve rod 2 and joint rod 3 is equipped with first sealed section of thick bamboo 5, the lower extreme and the valve body 1 contact of first sealed section of thick bamboo 5, the side and the first sealing ring 4 contact of first sealed section of thick bamboo 5, the outside of first sealed section of thick bamboo 5 is provided with first seal assembly.

One side of the first sealing cylinder 5, which is in contact with the valve body 1, is fixedly connected with a first rubber sealing ring 6.

The first sealing assembly comprises a second sealing barrel 701, an external thread 702 is arranged on the outer side of the first sealing barrel 5, the second sealing barrel 701 is connected to the outer side of the first sealing barrel 5 in a threaded rotating mode, a plurality of rotating plates 703 are evenly distributed on the side face of the second sealing barrel 701, the lower end of the second sealing barrel 701 is in contact with the valve body 1, and the lower end of the second sealing barrel 701 is fixedly connected with a second sealing ring 704 matched with the first sealing ring 4 and the first sealing barrel 5.

The upper end of the second sealing ring 704 is fixedly connected with a second rubber sealing ring 8.

When the device is used practically, the first sealing cylinder 5 is firstly contacted with the valve body 1 through the valve rod 2 and the clamping rod 3. The first rubber sealing ring 6 is used for sealing, and when the first sealing assembly is used, the second sealing cylinder 701 is rotated through the rotating plate 703 on the outer side of the first sealing cylinder 5, so that the second rubber sealing ring 8 arranged on the first sealing ring 4 is used for sealing.

Further, with reference to fig. 3-4, a second sealing assembly is provided on the outside of the valve stem 2.

The second seal assembly comprises a third seal barrel 901 sleeved outside the valve rod 2, a connecting barrel 902 symmetrically arranged on the side face of the second seal barrel 701 is fixedly connected with, a connecting groove 903 is arranged in the connecting barrel 902, a clamping ball 904 is arranged in the connecting groove 903, the inner side of the clamping ball 904 is connected in the connecting groove 903 through a first spring 905, a clamping hole 906 matched with the clamping ball 904 is arranged on the third seal barrel 901, a plate 907 matched with the clamping ball 904 is further fixedly connected to the third seal barrel 901, a bolt 908 is slidably connected to the connecting rod, and the inner side of the bolt 908 is connected with the connecting plate 907 through a second spring 909.

When the second sealing assembly is actually used, the third sealing barrel 901 moves downwards along the clamping rod 3 and the valve rod 2, so that the clamping ball 904 arranged on the second sealing barrel 701 is clamped into the clamping hole 906 on the third sealing barrel 901, the third sealing barrel 901 is sealed and protected, and when the third sealing assembly is to be taken down, the bolt 908 is pressed, so that the clamping ball 904 enters the connecting groove 903, and the third sealing barrel 901 can be taken down.

To sum up, the utility model discloses a theory of operation does: the first sealing cylinder 5 is firstly contacted with the valve body 1 through the valve rod 2 and the clamping rod 3. The first rubber sealing ring 6 is used for sealing, and when the first sealing assembly is used, the second sealing cylinder 701 is rotated outside the first sealing cylinder 5 through the rotating plate 703, so that the second rubber sealing ring 8 arranged on the first sealing ring 4 is used for sealing; the third sealing barrel 901 moves downwards along the clamping rod 3 and the valve rod 2, so that the clamping ball 904 arranged on the second sealing barrel 701 is clamped into the clamping hole 906 on the third sealing barrel 901, the third sealing barrel 901 is sealed and protected, and when the third sealing assembly is to be removed, the bolt 908 is pressed, so that the clamping ball 904 enters the connecting groove 903, and the third sealing barrel 901 can be removed.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a leak-proof ball valve rod that sealing performance is high, includes valve body (1), its characterized in that, be connected with valve rod (2) on valve body (1), two joint pole (3) that the both sides fixedly connected with symmetry of valve rod (2) set up, the first sealing ring (4) of upper end fixedly connected with of valve body (1), the outside cover of valve rod (2) and joint pole (3) is equipped with first sealed section of thick bamboo (5), the lower extreme and the valve body (1) contact of first sealed section of thick bamboo (5), the side and the first sealing ring (4) contact of first sealed section of thick bamboo (5), the outside of first sealed section of thick bamboo (5) is provided with first seal assembly.

2. A leak-proof ball valve stem with high sealing performance as claimed in claim 1, wherein a first rubber sealing ring (6) is fixedly connected to one side of the first sealing cylinder (5) contacting with the valve body (1).

3. A leak-proof ball valve rod with high sealing performance according to claim 1, wherein the first sealing assembly comprises a second sealing cylinder (701), an external thread (702) is arranged on the outer side of the first sealing cylinder (5), the second sealing cylinder (701) is connected to the outer side of the first sealing cylinder (5) in a threaded and rotating manner, a plurality of rotating plates (703) are uniformly distributed on the side surface of the second sealing cylinder (701), the lower end of the second sealing cylinder (701) is in contact with the valve body (1), and a second sealing ring (704) matched with the first sealing ring (4) and the first sealing cylinder (5) is fixedly connected to the lower end of the second sealing cylinder (701).

4. A leak-proof ball valve stem with high sealing performance as claimed in claim 3, wherein the upper end of the second sealing ring (704) is fixedly connected with a second rubber sealing ring (8).

5. A leak-proof ball valve stem with high sealing performance as claimed in claim 3, wherein the outside of said valve stem (2) is further provided with a second sealing assembly.

6. A leak-proof ball valve stem having high sealing performance as claimed in claim 5, the second sealing component comprises a third sealing cylinder (901) sleeved outside the valve rod (2), the side surface of the second sealing cylinder (701) is fixedly connected with symmetrically arranged connecting cylinders (902), a connecting groove (903) is arranged in the connecting cylinder (902), a clamping ball (904) is arranged in the connecting groove (903), the inner side of the clamping ball (904) is connected in the connecting groove (903) through a first spring (905), a clamping hole (906) matched with the clamping ball (904) is arranged on the third sealing cylinder (901), the third sealing cylinder (901) is also fixedly connected with a connecting plate (907) matched with the clamping ball (904), a bolt (908) is connected to the connecting rod in a sliding mode, and the inner side of the bolt (908) is connected with the connecting plate (907) through a second spring (909).

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