CN216812951U

CN216812951U - Ball valve rod

Info

Publication number: CN216812951U
Application number: CN202220348215.2U
Authority: CN
Inventors: 葛兵
Original assignee: Zhejiang Hualong Jushui Hvac Technology Co ltd
Current assignee: Zhejiang Valogin Technology Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-06-24
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses a ball valve rod, which relates to the technical field of valves and aims to enhance the sealing property and the firmness degree and prevent a handle from loosening, and is used for driving a valve core to rotate, and the adopted technical scheme is as follows: the outer part of the rod body is provided with a sealing mechanism, the inner part of the rod body is provided with a threaded hole, a cavity and a plurality of sliding chutes which are arranged in an annular array manner, the threaded hole is connected with a rotating rod with a cross-shaped groove at the top, a limiting block with a triangular cross section at the end part is connected in the sliding chute in a sliding manner, a plurality of guide rings which are connected with the cavity in a sliding manner are arranged on the rotating rod, and a connecting block, a magnetic rubber ring and a limiting ring are sequentially arranged below the guide rings; according to the ball valve rod, the sealing mechanism, the rotating rod, the guide ring, the connecting block, the magnetic rubber ring, the limiting block, the sliding groove, the cavity and the threaded hole are arranged, so that the sealing performance of the ball valve rod is better, and the firmness degree is greatly enhanced; through setting up sealing mechanism, can fix the lower surface of handle, and then at the in-process of pulling the handle, prevent that it is not hard up.

Description

Ball valve rod

Technical Field

The utility model relates to the technical field of valves, in particular to a valve rod of a ball valve.

Background

Ball valves, defined in standard GB/T21465-2008 "valve nomenclature" as: the opening and closing piece is a valve, namely a ball body is driven by a valve rod and rotates around the axis of the ball valve; the hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a strong shearing force is generated between a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the bead weld hard alloy, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like; the multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of a medium on a pipeline, and can close any channel to connect the other two channels, and the valve of the type is generally horizontally arranged in the pipeline; ball valve classification: pneumatic ball valves, electric ball valves, manual ball valves.

The valve rod is an important part of the valve and is used for transmission, an actuating mechanism or a handle is connected to the valve rod, and the valve core is directly driven to move or rotate below the actuating mechanism or the handle so as to realize the opening and closing or adjusting function of the valve.

The following problems often occur in the use of the prior ball valve stem: the valve rod and the valve body are usually in threaded connection, and according to a mechanical structure of threaded connection matching, the threaded matching has a certain gap, so that in the using process, long-term opening and closing can cause shaking among parts, the sealing performance in the valve is poor, leakage and the like in the valve body occur, and further the service life of the whole product is correspondingly shortened; the mounting hole on the handle often slightly is greater than the extension, even fix the handle through the nut, at the in-process of pulling the handle, still can lead to the handle to appear becoming flexible to a certain extent.

Disclosure of Invention

In view of the problems in the prior art, the utility model discloses a ball valve rod, which adopts the technical scheme that the ball valve rod comprises a clamping part, a leaning plate, a rod body and an extension part, wherein the upper end and the lower end of the leaning plate are respectively connected with the rod body and the clamping part, the leaning plate is used for limiting, the rod body is used for connecting and fixing, the clamping part is used for connecting a valve core, the rod body is provided with external threads, the top of the rod body is provided with the extension part, and the extension part is used for connecting a handle; still include sealing mechanism, dwang, guide ring, connecting block, magnetic rubber circle, spacing ring, stopper, spout, cavity, screw hole, the body of rod outside is equipped with sealing mechanism for sealed, inside is equipped with the screw hole cavity and a plurality of annular array arrange the spout, threaded hole internal connection top has the cross recess the dwang, through the cross recess can rotate the dwang, sliding connection has the tip cross-section to be triangle-shaped in the spout the stopper sets up the annular groove in the corresponding position department of valve body, can push up tight valve body, can avoid simultaneously the body of rod rocks from top to bottom, be equipped with on the dwang a plurality of with cavity sliding connection the guide ring for the direction makes the removal of dwang is more steady, the guide ring below is equipped with in proper order connecting block, stopper, The magnetic rubber circle the spacing ring, the cross-section of connecting block is that the bottom opening is little, and the isosceles trapezoid that the open-top is big can pass through inclined plane on the connecting block drives the spacing block removes, and then the tight valve body in top, the magnetic rubber circle with the spout position is corresponding, the stopper is made by the metal that can be adsorbed by magnet, through the magnetic rubber circle can adsorb it fixedly.

As a preferred technical scheme of the utility model, the front surface and the rear surface of the clamping part are respectively provided with the buffer pads, so that when the clamping part is rotated, the valve core and the clamping part are prevented from being damaged by rigid contact, the upper surface and the lower surface of the leaning plate are respectively provided with the sealing rings, the sealing effect is better, and the buffer pads and the sealing rings are made of rubber, so that the elasticity is good, the cost is low, and the sealing effect is strong.

As a preferred technical scheme of the utility model, the sealing mechanism comprises a moving ring, a lower sealing ring, a connecting rod, a fixing ring, a rotating ring, a nut and an upper sealing ring, the moving ring, the lower sealing ring, the connecting rod, the rotating ring and the upper sealing ring are all connected with the rod body in a sliding way and are convenient to move, the fixing ring is fixedly connected with the rod body and is used for supporting and fixing, the nut is meshed on an external thread outside the rod body, the top of the fixing ring is connected with the upper sealing ring and can push a handle sleeved on the extending part tightly, the bottom of the fixing ring is connected with the rotating ring in a shaft mode, the bottom of the rotating ring is connected with the moving ring through a plurality of connecting rods arranged in an annular array mode, the bottom of the fixing ring is connected with the lower sealing ring, and a plurality of through holes corresponding to the positions of the connecting rods are formed in the lower sealing ring and the fixing ring, the nut is rotated, so that the rotating ring, the connecting rod and the moving ring can move up and down, and the lower sealing ring and the upper sealing ring are further pressed tightly.

As a preferable technical scheme of the utility model, the rod body is coated with the reflective coating, so that the part can be quickly found under the condition of dark light.

As a preferred technical solution of the present invention, the extension portion includes a first smooth section and a first thread section, and an upper end and a lower end of the first smooth section are respectively connected to the first thread section and the rod body.

As a preferred technical scheme of the present invention, the rotating rod includes a head portion, a second smooth section, and a second threaded section, the head portion and the second threaded section having a cross groove are respectively connected to upper and lower ends of the second smooth section, the middle portion is provided with a plurality of the guide rings, the connecting block, the magnetic rubber ring, and the limiting ring, and the second threaded section is engaged in the threaded hole.

As a preferable technical scheme of the utility model, the top of the threaded hole is provided with a rubber cap matched with the threaded hole in size, so that the threaded hole can be dustproof and moistureproof.

The utility model has the beneficial effects that: according to the ball valve, the sealing mechanism, the rotating rod, the guide ring, the connecting block, the magnetic rubber ring, the limiting block, the sliding groove, the cavity and the threaded hole are arranged, so that the sealing performance of the valve rod of the ball valve is better, the firmness is greatly enhanced, even if the valve rod and the valve body are connected through the threads and have certain gaps, the valve rod and the valve body are opened and closed for a long time in the using process, the parts cannot shake, the sealing performance in the valve cannot be deteriorated, the leakage and other conditions in the valve body cannot be caused, the service life of the whole product is correspondingly prolonged, most manufacturers are prevented from directly replacing the whole valve, the cost is increased, the efficiency is reduced, and a large amount of manufacturing materials are wasted; through setting up sealing mechanism, can fix the lower surface of handle, even mounting hole on the handle slightly is greater than the extension, at the in-process of pulling the handle, can not lead to the handle not hard up yet.

Drawings

Fig. 1 is an external sectional structural view of a front view of the present invention.

Fig. 2 is a schematic view of the internal cross-sectional structure of the front view of the present invention.

FIG. 3 is a schematic left side view of the present invention.

FIG. 4 is a schematic top view of the present invention.

In the figure: 1. a clamping part; 2. a leaning plate; 3. a sealing mechanism; 301. a moving ring; 302. a lower seal ring; 303. a connecting rod; 304. a fixing ring; 305. a rotating ring; 306. a nut; 307. an upper sealing ring; 4. a rod body; 5. an extension portion; 501. a first smooth section; 502. a first thread segment; 6. rotating the rod; 601. a head portion; 602. a second smooth section; 603. a second thread segment; 7. a guide ring; 8. connecting blocks; 9. a magnetic rubber ring; 10. a limiting ring; 11. a limiting block; 12. a chute; 13. a cavity; 14. a threaded bore.

Detailed Description

Example 1

As shown in fig. 1 to 4, the utility model discloses a ball valve rod, which adopts the technical scheme that the ball valve rod comprises a clamping part 1, a leaning plate 2, a rod body 4 and an extension part 5, wherein the upper end and the lower end of the leaning plate 2 are respectively connected with the rod body 4 and the clamping part 1, the leaning plate 2 can be used for limiting in a valve body to prevent the rod body 4 from falling off, the rod body 4 is used for connection and fixation, the clamping part 1 is used for connecting a valve core to drive the valve core to rotate, the rod body 4 is provided with external threads, the top of the rod body is provided with the extension part 5, and the extension part 5 is used for connecting a handle to enable the rod body 4 to rotate more easily; the sealing device further comprises a sealing mechanism 3, a rotating rod 6, a guide ring 7, a connecting block 8, a magnetic rubber ring 9, a limiting ring 10, limiting blocks 11, sliding chutes 12, a cavity 13 and threaded holes 14, wherein the sealing mechanism 3 is arranged outside the rod body 4, the sealing effect is better, the threaded holes 14, the cavity 13 and the sliding chutes 12 are arranged in an annular array manner, the rotating rod 6 with a cross-shaped groove at the top is connected in the threaded holes 14, the rotating rod 6 can be easily rotated through the cross-shaped groove, the limiting blocks 11 with triangular end sections are slidably connected in the sliding chutes 12, the annular grooves with thickness smaller than the limiting blocks 11 are arranged at corresponding positions of the valve body, so that the valve body can be tightly pushed, meanwhile, the rod body 4 can be prevented from vertically swinging, the fixing effect is better, even if abrasion exists later, the valve body can be easily fastened again, be equipped with on dwang 6 a plurality of with cavity 13 sliding connection the guide ring 7, be used for the direction of dwang 6 makes it remove more steadily, guide ring 7 below is equipped with in proper order connecting block 8 magnetic rubber circle 9 the spacing ring 10, the cross-section of connecting block 8 is that the bottom opening is little, the isosceles trapezoid that open-top is big, can pass through inclined plane drive on the connecting block 8 stopper 11 outwards removes, and then the tight valve body in top, magnetic rubber circle 9 with spout 12 position is corresponding, stopper 11 is made by the metal that can be adsorbed by magnet, through magnetic rubber circle 9 can adsorb it fixedly.

As a preferred technical scheme of the utility model, the front and back surfaces of the clamping part 1 are respectively provided with a buffer pad, so that the valve core and the clamping part 1 can be protected, the service life of the valve core and the clamping part 1 is longer, the upper surface and the lower surface of the leaning plate 2 are respectively provided with a sealing ring, the sealing effect is better, and the buffer pads and the sealing rings are made of rubber, so that the elasticity is good, the price is low, and the sealing effect is strong.

As a preferred technical solution of the present invention, the sealing mechanism 3 includes a moving ring 301, a lower sealing ring 302, a connecting rod 303, a fixing ring 304, a rotating ring 305, a nut 306, and an upper sealing ring 307, the moving ring 301, the lower sealing ring 302, the connecting rod 303, the rotating ring 305, and the upper sealing ring 307 are all slidably connected to the rod body 4, so as to facilitate movement of each accessory, the fixing ring 304 is fixedly connected to the rod body 4 for supporting and fixing, the nut 306 is engaged on an external thread outside the rod body 4, the top is connected to the upper sealing ring 307, so as to tightly press a handle sleeved on the extending portion 5, the bottom shaft is connected to the rotating ring 305, the bottom of the rotating ring 305 is connected to the moving ring 301 through the connecting rods 303 arranged in a circular array, the bottom of the fixing ring 304 is connected to the lower sealing ring 302, the lower sealing ring 302 and the fixing ring 304 are provided with a plurality of through holes corresponding to the positions of the connecting rod 303, and the nut 306 is rotated to enable the rotating ring 305, the connecting rod 303 and the moving ring 301 to move up and down so as to compress the lower sealing ring 302 and the upper sealing ring 307.

As a preferable technical scheme of the utility model, the outside of the rod body 4 is coated with a reflective coating, so that the part can be quickly found under the condition of dark light.

As a preferred technical solution of the present invention, the extension portion 5 includes a first smooth section 501 and a first threaded section 502, and the upper and lower ends of the first smooth section 501 are respectively connected to the first threaded section 502 and the rod body 4.

As a preferred technical solution of the present invention, the rotating rod 6 includes a head 601, a second smooth section 602, and a second threaded section 603, the head 601 and the second threaded section 603 with a cross-shaped groove are respectively connected to the upper and lower ends of the second smooth section 602, the middle portion of the second smooth section is provided with a plurality of guide rings 7, the connecting block 8, the magnetic rubber ring 9, and the limiting ring 10, and the second threaded section 603 is engaged in the threaded hole 14.

As a preferable technical scheme of the utility model, the top of the threaded hole 14 is provided with a rubber cap matched with the size of the threaded hole, so that dust and moisture can be prevented from entering the threaded hole 14, and a certain protection effect can be achieved.

The working principle of the utility model is as follows: the rod body 4 is placed into the valve body, the leaning plate 2 leans against the valve body tightly, the valve core is clamped through the clamping portion 1, the rotating rod 6 is rotated, the guide ring 7 slides downwards along the cavity 13, the connecting block 8, the magnetic rubber ring 9 and the limiting ring 10 move downwards, the limiting block 11 slides outwards along the sliding groove 12 under the action of the connecting block 8 to further push against the valve body tightly, then the handle is installed on the extending portion 5, and sealing operation is conducted through the sealing mechanism 3; during sealing, the nut 306 is rotated to move upwards to drive the upper sealing ring 307, the rotating ring 305, the connecting rod 303 and the moving ring 301 to move upwards, and the lower sealing ring 302 is pressed under the blocking of the fixing ring 304 and protrudes outwards to be sealed; when the handle is installed, the handle is sleeved on the first smooth section 501, and a nut is screwed on the first threaded section 502; when the rotating rod 6 is rotated, the head 601 is rotated to rotate and lower the second threaded section 603 in the threaded hole 14, so as to drive the second smooth section 602 to slide downwards.

The mechanical connection according to the utility model is a conventional means used by the skilled person and can be suggested by limited trials and is common general knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A ball valve rod comprises a clamping portion (1), a leaning plate (2), a rod body (4) and an extension portion (5), wherein the upper end and the lower end of the leaning plate (2) are respectively connected with the rod body (4) and the clamping portion (1), external threads are arranged on the rod body (4), and the extension portion (5) is arranged at the top of the rod body; the method is characterized in that: still include sealing mechanism (3), dwang (6), guide ring (7), connecting block (8), magnetic rubber circle (9), spacing ring (10), stopper (11), spout (12), cavity (13), screw hole (14), the body of rod (4) outside is equipped with sealing mechanism (3), inside is equipped with screw hole (14) cavity (13) and a plurality of annular array arrange spout (12), threaded hole (14) in the connecting top have a cross recess dwang (6), sliding connection has the tip cross-section to be triangle-shaped in spout (12) stopper (11), be equipped with on dwang (6) a plurality of with cavity (13) sliding connection guide ring (7), guide ring (7) below is equipped with in proper order connecting block (8) magnetic rubber circle (9), The limiting ring (10), the cross-section of connecting block (8) is the isosceles trapezoid that bottom opening is little, and top opening is big, magnetism rubber circle (9) with spout (12) position is corresponding.

2. A ball valve stem as defined in claim 1, wherein: the front and back two sides of joint portion (1) all are equipped with the blotter, lean on the upper and lower two sides of position board (2) all to be equipped with the sealing washer, the blotter with rubber is all chooseed for use to the material of sealing washer.

3. A ball valve stem according to claim 1, wherein: the sealing mechanism (3) comprises a moving ring (301), a lower sealing ring (302), a connecting rod (303), a fixing ring (304), a rotating ring (305), a nut (306) and an upper sealing ring (307), the moving ring (301), the lower sealing ring (302), the connecting rod (303), the rotating ring (305) and the upper sealing ring (307) are all connected with the rod body (4) in a sliding manner, the fixing ring (304) is fixedly connected with the rod body (4), the nut (306) is meshed on an external thread outside the rod body (4), the top of the nut is connected with the upper sealing ring (307), the bottom of the nut is connected with the rotating ring (305) in a shaft connection manner, the bottom of the rotating ring (305) is connected with the moving ring (301) through the connecting rod (303) arranged in a plurality of annular arrays, and the bottom of the fixing ring (304) is connected with the lower sealing ring (302), the lower sealing ring (302) and the fixing ring (304) are provided with a plurality of through holes corresponding to the connecting rod (303).

4. A ball valve stem according to claim 1, wherein: and reflective paint is coated on the outer part of the rod body (4).

5. A ball valve stem according to claim 1, wherein: the extension part (5) comprises a first smooth section (501) and a first thread section (502), and the upper end and the lower end of the first smooth section (501) are respectively connected with the first thread section (502) and the rod body (4).

6. A ball valve stem according to claim 1, wherein: dwang (6) are including head (601), the smooth section of second (602), second screw thread section (603), both ends are connected respectively about the smooth section of second (602) and are had cross recess head (601) with second screw thread section (603), the middle part is equipped with a plurality of guide ring (7) connecting block (8) magnetic rubber circle (9) spacing ring (10), second screw thread section (603) meshing is in screw hole (14).

7. A ball valve stem according to claim 1, wherein: the top of the threaded hole (14) is provided with a rubber cap matched with the threaded hole in size.