CN211852873U

CN211852873U - Ball valve

Info

Publication number: CN211852873U
Application number: CN202020116035.2U
Authority: CN
Inventors: 杨士鹏; 袁君辉; 狄绍斌; 蔡振楠
Original assignee: Zhejiang Yipan Technology Co ltd
Current assignee: Zhejiang Fansheng Fluid Control Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-11-03
Anticipated expiration: 2030-01-18

Abstract

The utility model provides a ball valve belongs to valve technical field. It has solved the easy not hard up and the poor problem of valve rod stability of current ball valve handle. This ball valve is including the valve body that has the installation end, be equipped with the valve rod in the installation end, the valve rod upper end has the connector, the connector exposes outside the installation end, the annular has been opened to the inboard in the installation end port, be equipped with filler and retaining ring by supreme down respectively in the annular, go back threaded connection nut one on the connector, nut side is supported with the side of going up of retaining ring and is leaned on, still the cover is equipped with the handle fixed with valve rod circumference on the connector, still be equipped with the gliding nut two of restriction handle on the connector, the mounting hole has been seted up on the connector up end, the mounting hole internal fixation has spacing cap, spacing cap is umbrella-shaped and its outer edge supports and leans on. The ball valve has the advantages that the stability of the handle is enhanced, and meanwhile, the sealing performance between the valve body and the valve rod is further enhanced.

Description

Ball valve

Technical Field

The utility model belongs to the technical field of the valve, a ball valve is related to.

Background

The ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. The ball valve is suitable for being used as a switch and a stop valve.

Along with the progress of science and technology, because ball valve on-off control pipeline is more convenient and light characteristic than other valves, also need the convenient valve of this kind of switch of ball valve to replace on the gas pipeline, in the face of the ball valve use of gradually popularizing, the leakproofness and the stability of ball valve itself still need promote. The poor leakproofness of ordinary ball valve can't be applicable to the circulation medium and be gaseous pipeline, uses the valve on the gas pipeline in addition and all comparatively frequently opens and shuts, and the connection stability between its valve body of our current ball valve face too frequent switch and the valve rod still remains to be improved. And frequent switching can affect the seal between the valve body and the valve stem. Therefore, the problem of solving the above existing problem is that we are not ready to deal with things at present.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a ball valve. It solves the technical problems that the prior ball valve handle is easy to loose and the stability of the valve rod is poor.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a ball valve, is including the valve body that has the installation end, be equipped with the valve rod in the installation end, the valve rod upper end has the connector, the connector exposes outside the installation end, a serial communication port, the annular has been seted up to the installation end port inboard, is equipped with filler and retaining ring in the annular by supreme down respectively, it is first still threaded connection nut on the connector, the nut side is supported with the side of going up of retaining ring and is leaned on, still the cover is equipped with the handle fixed with valve rod circumference on the connector, still be equipped with the gliding nut of restriction handle two on the connector, the mounting hole has been seted up on the connector up end, the mounting hole bearing has been inserted has spacing cap, spacing cap is umbrella-type and its outer edge supports and leans on the side of.

The annular groove is formed in the inner side of the end opening of the mounting end, the filler and the check ring are arranged in the annular groove from bottom to top respectively, the first connecting head is connected with the nut in a threaded mode, and the lower side face of the nut is abutted to the upper side face of the check ring. The filler is used for playing a role in buffering, when a user opens and closes the valve or accidentally touches the valve, the filler can generate impact force on the valve rod, the conventional valve rod is directly in rigid contact with the valve body to unload the force, the structural strength of the valve rod is likely to be influenced along with the increase of the use frequency and the increase of the service life, particularly, along with the use of the valve rod, the gap between the valve rod and the valve body is increased along with the use of friction, the filler can shake in the subsequent use process, and the stability is poor. So this ball valve sets up the filler in the position of valve rod and valve body contact, even have the effect of external force also can not avoid hard contact with valve body direct contact under the interval of filler, make the life of valve rod obtain greatly. And the effect of packing can also play the effect of further reinforcing the leakproofness between valve body and the valve rod, because this ball valve uses as the gas valve usually, so require very high to the leakproofness of ball valve, the packing can be for valve rod and valve body increase sealing contact position once more, has improved the leakproofness of valve body greatly. The check ring and the first nut have the function that the valve rod can be pushed outwards towards the mounting end through the extrusion of the packing by the rotation of the first nut, so that the valve rod is mounted in place and cannot shake or slide up and down.

Still the cover is equipped with the handle fixed with valve rod circumference on the connector, still be equipped with the gliding nut of restriction handle two on the connector. The handle is arranged between the first nut and the second nut and is connected with the clamping handle through the two nuts in a threaded mode to limit the movement of the handle, and therefore the handle is convenient to install and detach. When the ball valve is used usually, the handle nut II is frequently screwed to loosen, so that the ball valve is provided with a mounting hole on the upper end face of the connecting head, a limiting cap is inserted in the mounting hole, the limiting cap is umbrella-shaped, and the outer edge of the limiting cap abuts against the upper side face of the nut II. The limiting cap and the nut form a resisting relation so that the nut II can not loosen outwards towards the upper end along the thread, and the stability is greatly enhanced. The second nut cannot be loosened along thread lines along with the opening and closing and the use of the handle under the blocking of the outer edge of the limiting cap, so that the stability of the handle is enhanced.

In foretell ball valve, the notch department of annular has seted up oblique notch, the downside that packs supports and leans on the annular diapire, the side of going up that packs flushes with oblique notch minimum diameter place face, the retaining ring is located oblique notch inboard just retaining ring upper end part stretches out outside the oblique notch.

The notch department of annular has seted up the oblique notch, and the effect of oblique notch becomes convenient when the installation packs, plays the effect of a direction in other words, convenient assembly. The side of going up of packing flushes with the minimum diameter face in oblique notch, and the retaining ring lies in the inboard and retaining ring upper end part of oblique notch and stretches out outside the oblique notch, sets up like this and makes the packing be full of the cavity that surrounds formation between whole annular and the valve rod for it is better to be fully filled up to form sealed stability when between valve body and the valve rod. Because the diameter of retaining ring is similar with the diameter of packing, so the retaining ring will prevent in a space that is greater than the annular diameter, otherwise the valve rod along with the effect of external force is probably can rock, and the existence of retaining ring can collide with the annular lateral wall and make its wearing and tearing make and produce the gap between packing and the annular and influence its leakproofness.

In the above ball valve, the upper end of the connector is square, the handle is provided with a square through groove, and the upper end of the connector extends into the through groove to form circumferential fixation.

Lead to groove and the spacing fixed just connection stability height of setting up like this of connector upper end joint.

In foretell ball valve, spacing cap connects and establishes the spigot and socket head on keeping off the lower terminal surface including being the circular shape fender, and the spigot and socket head is located the mounting hole, keep off and still be equipped with the bellied flange of two directions of orientation nut on the connector, the side supports to lean on flange downside and two nuts.

The inside wall of holding plug lateral surface and mounting hole supports to lean on fixedly for spacing cap is fixed on the connector, makes the flange that sets up on keeping off the joint like this and can give the nut two and prevent that the nut is not hard up along with the screw thread direction for the power that the fender is two downwards, sets up like this and has further strengthened the stability of handle.

In the ball valve, the socket head is made of an elastic material and has a diameter gradually decreasing from top to bottom.

The material of the spigot is preferably plastic or the like which gradually forms a tight fit with the side wall of the mounting hole as it extends into the mounting hole. The diameter reduces from top to bottom gradually, and along with the socket joint head constantly stretches into in the mounting hole, it is firm more to hold fixing between plug and the mounting hole.

In the above ball valve, the upper end face of the blocking joint is further provided with an indicator for identifying the use occasion of the ball valve.

The color of the blocking joint can be changed during production and manufacturing, and different functions of the ball valve, such as a gas special valve, a water path special valve or other liquid valves, can be prompted by changing the color. The product is also provided with an indicating mark, so that the application range of the product can be more intuitively and conveniently prompted to a user, accidents are prevented, and the safety is improved.

In the above ball valve, the handle is further provided with two symmetrical locking parts.

The function of lock catch portion is can be through passing the mode of winding on it and making switch element such as handle lock, has further increased this ball valve's security, prevents to be opened by the people and causes the leakage by accident.

In the ball valve, the handle is further provided with an oval holding part for holding by a palm.

Compared with the prior art, the product has the advantages that:

1. the limiting cap is umbrella-shaped, the outer edge of the limiting cap abuts against the upper side face of the second nut, and the second nut cannot be loosened along thread lines along with opening and closing and use of the handle under the abutting of the outer edge of the limiting cap, so that the stability of the handle is enhanced.

2. This ball valve contacts under the interval of filler between valve body and the valve rod and has avoided direct rigid contact for the valve rod stability is better in the use, and the effect of filler can also play the effect of further reinforcing the leakproofness between valve body and the valve rod moreover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a half sectional view of the present invention.

In the figure, 1, a valve body; 11. an installation end; 12. a ring groove; 13. a beveled slot opening; 2. a valve stem; 21. a connector; 211. mounting holes; 3. a filler; 4. a retainer ring; 5. a first nut; 6. a second nut; 7. a handle; 71. a through groove; 72. a holding portion; 73. a locking part; 8. a limiting cap; 81. a plug bearing; 82. a blocking joint; 83. a flange; 84. indicating the identification.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The ball valve shown in fig. 1 and 2 comprises a valve body 1 with a water inlet end and a water outlet end, wherein the valve body 1 is laterally provided with a mounting end 11, a ball valve core is further arranged in the valve body 1, the upper end of the ball valve core is connected with a valve rod 2, and the valve rod 2 extends into the mounting end 11 and the upper end of the valve rod extends out of the mounting end 11 and is exposed outside the mounting end. An annular constant head tank has been seted up to the lower port department of installation end 11, is equipped with annular convex part on the 2 lower extremes of valve rod lateral surfaces, and the cover is equipped with sealed the pad on the annular convex part side, and sealed up end and the roof of constant head tank support to lean on and make and form between valve body 1 and the valve rod 2 sealed, and when using valve rod 2 or external force to apply valve rod 2, sealed pad can both play the effect of a buffering, has improved the stability of valve rod 2 greatly. Still have the annular groove body on the outer peripheral face of valve rod 2, the internal cover of annular groove is equipped with the sealed pad of O type, supports between the sealed lateral surface of the sealed pad of O type and the inside wall of installation end 11 to lean on to form sealedly, sets up the sealed effect between double seal effect has promoted valve rod 2 and the valve body 1 greatly like this. The upper end of the valve rod 2 is provided with a connector 21, the connector 21 is exposed outside the mounting end 11, an annular groove 12 is formed in the inner side of the port of the mounting end 11, a packing 3 and a retainer ring 4 are respectively arranged in the annular groove 12 from bottom to top, the connector 21 is further in threaded connection with a nut 5, and the lower side surface of the nut 5 abuts against the upper side surface of the retainer ring 4. The upper end of the connector 21 is square, a square through groove 71 is formed in the handle 7, and the upper end of the connector 21 extends into the through groove 71 to form circumferential fixation. The through groove 71 is clamped and fixed with the upper end of the connector 21 in a limiting manner, so that the installation is convenient and the connection stability is high.

The connecting head 21 is further provided with a second nut 6 for limiting the handle 7 to slide, the upper end face of the connecting head 21 is provided with a mounting hole 211, a limiting cap 8 is inserted into the mounting hole 211, and the limiting cap 8 is umbrella-shaped and the outer edge of the limiting cap abuts against the upper side face of the second nut 6. The material of the stop cap 8 is preferably plastic, and can be fastened, fitted and fixed with the mounting hole 211 as gradually inserted into the mounting hole 211. Annular groove 12 has been seted up to 11 port inboards of erection end, is equipped with filler 3 and retaining ring 4 respectively by supreme down in annular groove 12, and screw connection nut 5 is gone up still to connector 21, and the downside of nut 5 supports with the side of going up of retaining ring 4 and leans on. The filler 3 is used for playing a role in buffering, when a valve is opened or closed or the valve is touched accidentally, impact force is generated on the valve rod 2, the conventional valve rod 2 is directly in rigid contact with the valve body 1 to remove the force, the structural strength of the valve rod 2 is possibly influenced along with the increase of the use frequency and the increase of the service life, particularly, along with the use of the valve rod 2, the gap between the valve rod 2 and the valve body 1 is increased along with the use of friction, the subsequent use can shake, and the stability is poor. So this ball valve sets up packing 3 in the position of valve rod 2 with the contact of valve body 1, even have the effect of external force also can not avoid hard contact with valve body 1 direct contact under the interval of packing 3, make the life of valve rod 2 obtain greatly. And the effect of packing 3 can also play the effect of further reinforcing the leakproofness between valve body 1 and the valve rod 2, because this ball valve uses as the gas valve usually, so require very high to the leakproofness of ball valve, packing 3 can be for valve rod 2 and valve body 1 increase sealing contact position again, has improved the leakproofness of valve body 1 greatly. Set up the leakproofness of this ball valve of very big assurance of triple sealed effect like this. The retainer ring 4 and the nut 5 have the function of pushing the valve rod 2 outwards towards the mounting end 11 by extruding the packing 3 through the rotation of the nut 5 so that the valve rod is mounted in place without shaking or sliding up and down. The connector 21 is further sleeved with a handle 7 circumferentially fixed with the valve rod 2, and the connector 21 is further provided with a second nut 6 limiting the handle 7 to slide. The handle 7 is arranged between the first nut 5 and the second nut 6, and the clamping handle 7 is connected through the two nut threads to limit the movement of the handle 7, so that the handle 7 is convenient to mount and dismount. When the ball valve is used in normal times, the second nut 6 can be loosened by frequently screwing the handle 7, so that the ball valve is provided with a mounting hole 211 on the upper end surface of the connector 21, and the limiting cap 8 is fixed in the mounting hole 211. The limit cap 8 comprises a circular block joint 82 and a plug 81 arranged on the lower end surface of the block joint 82. The plug 81 is located in the mounting hole 211, the diameter of the plug 81 is gradually reduced from top to bottom, and the arrangement makes the plug gradually increased by the extrusion force when being inserted into the mounting hole 211 and more firmly fixed at the later stage. The stop joint 82 is further provided with a flange 83 protruding towards the second nut 6, and the lower side surface of the flange 83 abuts against the upper side surface of the second nut 6. The outer side face of the plug 81 is abutted against and fixed with the inner side wall of the mounting hole 211, so that the limiting cap 8 is fixed on the connector 21, the flange 83 arranged on the blocking joint 82 can give downward force to the second nut 6 to prevent the second nut 6 from loosening along the thread direction, and the stability of the handle 7 is further enhanced.

The notch department of annular 12 has seted up oblique notch 13, and 3 downside of packing supports and leans on annular 12 diapire, and the last side of 3 packing flushes with the minimum diameter place face of oblique notch 13, and retaining ring 4 is located that the inboard and 4 upper end parts of retaining ring of oblique notch 13 stretch out outside the oblique notch 13. The function of the inclined notch 13 is to facilitate the installation of the packing 3, which is equivalent to a guiding function and convenient assembly. The upper flank of packing 3 flushes with the minimum diameter place face of oblique notch 13, and retaining ring 4 is located the inboard and retaining ring 4 upper end part of oblique notch 13 and stretches out outside oblique notch 13, sets up like this and makes packing 3 can be full of the cavity that surrounds formation between whole annular 12 and the valve rod 2 for it is better to be fully filled up to form sealed stability when 2 between valve body 1 and the valve rod. Because the diameter of retaining ring 4 is similar with the diameter of packing 3, so retaining ring 4 will prevent in a space that is greater than annular groove 12 diameter, otherwise with the effect of external force valve rod 2 probably can rock, the existence of retaining ring 4 can collide with annular groove 12 lateral wall and make its wearing and tearing make packing 3 and annular groove 12 between produce the gap and influence its leakproofness.

The upper end face of the blocking joint is also provided with an indicating mark 84 for identifying the use occasion of the ball valve. The color of the blocking joint can be changed during production and manufacturing, and different functions of the ball valve, such as a gas special valve, a water path special valve or other liquid valves, can be prompted by changing the color. The product is also provided with the indicating mark 84, so that the application range of the product can be more visually and conveniently prompted to a user, accidents are prevented, and the safety is improved. The handle 7 is further provided with two symmetrical locking portions 73. The locking part 73 is used for locking a switch element such as the handle 7 by winding through a serial chain, thereby further improving the safety of the ball valve and preventing leakage caused by accidental opening. The handle 7 is further provided with a holding part 72 which is oval and can be held by a palm, so that the handle 7 can be held more comfortably and cannot slip when the handle 7 is opened and closed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A ball valve comprises a valve body (1) with a mounting end (11), wherein a valve rod (2) is arranged in the mounting end (11), a connector (21) is arranged at the upper end of the valve rod (2), the connector (21) is exposed out of the mounting end (11), and the ball valve is characterized in that an annular groove (12) is formed in the inner side of the port of the mounting end (11), a filler (3) and a check ring (4) are respectively arranged in the annular groove (12) from bottom to top, a first nut (5) is connected to the connector (21) in a threaded manner, the lower side surface of the first nut (5) is abutted to the upper side surface of the check ring (4), a second handle (7) circumferentially fixed with the valve rod (2) is further sleeved on the connector (21), a second nut (6) for limiting the sliding of the handle (7) is further arranged on the connector (21), a mounting hole (211) is formed in the upper end surface of the connector (21), and a, the limiting cap (8) is umbrella-shaped, and the outer edge of the limiting cap abuts against the upper side face of the second nut (6).

2. The ball valve according to claim 1, wherein the limiting cap (8) comprises a blocking joint (82) in a disc shape and a plug bearing (81) arranged on the lower end surface of the blocking joint (82), the plug bearing (81) is positioned in the mounting hole (211), a flange (83) protruding towards the second nut (6) is further arranged on the blocking joint (82), and the lower side surface of the flange (83) abuts against the upper side surface of the second nut (6).

3. A ball valve according to claim 2, characterized in that said spigot (81) is made of an elastic material and has a diameter which decreases from the top to the bottom.

4. A ball valve according to claim 3, wherein the stop joint (82) is further provided with an indicator (84) on the upper end surface thereof for identifying the use of the ball valve.

5. The ball valve according to claim 1, characterized in that the notch of the annular groove (12) is provided with an inclined notch (13), the lower side surface of the filler (3) abuts against the bottom wall of the annular groove (12), the upper side surface of the filler (3) is flush with the plane of the smallest diameter of the inclined notch (13), the retainer ring (4) is positioned inside the inclined notch (13), and the upper end part of the retainer ring (4) extends out of the inclined notch (13).

6. The ball valve according to claim 5, wherein the upper end of the connector (21) is square, the handle (7) is provided with a square through groove (71), and the upper end of the connector (21) extends into the through groove (71) to form circumferential fixation.

7. A ball valve according to any of claims 1-6, characterized in that the handle (7) is further provided with two symmetrical locking portions (73).

8. A ball valve according to any one of claims 1 to 6, wherein the handle (7) is further provided with a gripping portion (72) having an oval shape for gripping by a palm of a hand.