CN216895870U - Self-locking ball valve - Google Patents
Self-locking ball valve Download PDFInfo
- Publication number
- CN216895870U CN216895870U CN202122685889.XU CN202122685889U CN216895870U CN 216895870 U CN216895870 U CN 216895870U CN 202122685889 U CN202122685889 U CN 202122685889U CN 216895870 U CN216895870 U CN 216895870U
- Authority
- CN
- China
- Prior art keywords
- valve
- self
- fixedly connected
- rod
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to the technical field of valves, in particular to a self-locking ball valve. It includes the valve body, swing joint has the valve ball in the valve body, valve ball top fixedly connected with valve rod, be equipped with fixed orifices one on the valve rod, the top of valve rod is equipped with rotatory handle, the inside of valve body transversely is equipped with flow channel, flow channel is close to the position department of valve ball and is equipped with seal assembly, the top fixedly connected with fixing base of valve body, the surface at the valve rod is established to the fixing base cover, the installation cavity has been seted up in the fixing base, be equipped with the auto-lock subassembly in the installation cavity, be equipped with fixed subassembly on the fixing base, through connecting rod fixedly connected with connecting plate on the fixing base, rotate through the pivot on the connecting plate and be connected with a plurality of joint pawls, be equipped with a plurality of restriction pieces on the connecting plate, the dead slot has been seted up in the connecting plate. The utility model has simple and convenient operation and good self-locking effect, and can effectively avoid the phenomenon of rotation or gyration of the valve rod.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a self-locking ball valve.
Background
The ball valve is a valve in which an opening and closing member (ball) is driven by a valve rod and rotates around the axis of the ball valve, and can also be used for regulating and controlling fluid. 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. Most of the existing ball valves do not have a self-locking device, the valve rod can automatically rotate due to the fact that a handle is touched by collision or due to the high-pressure impact force of a medium, and the phenomenon of valve rod rotation exists, so that leakage is caused. Therefore, a self-locking ball valve is required to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a self-locking ball valve which is simple to operate and convenient to use.
In order to solve the above problems, the present invention provides the following technical solutions: a self-locking ball valve comprises a valve body, a valve ball is movably connected in the valve body, a valve rod is fixedly connected at the top end of the valve ball, a first fixing hole is formed in the valve rod, a rotating handle is arranged at the top end of the valve rod, a flow channel is transversely arranged in the valve body, a sealing assembly is arranged at the position, close to the valve ball, of the flow channel, a fixing seat is fixedly connected at the top end of the valve body and sleeved on the outer surface of the valve rod, an installation cavity is formed in the fixing seat, a self-locking assembly is arranged in the installation cavity, a fixing assembly is arranged on the fixing seat, a connecting plate is fixedly connected to the fixing seat through a connecting rod, a plurality of clamping pawls are rotatably connected to the connecting plate through rotating shafts, a plurality of limiting blocks are arranged on the connecting plate, an empty groove is formed in the connecting plate, a ratchet wheel is arranged in the empty groove, and the ratchet wheel is fixedly connected with the outer surface of the valve rod, and a plurality of second fixing holes are formed in the ratchet wheel.
The sealing assembly comprises a graphite fire-proof ring, a first spring is arranged between the graphite fire-proof ring and the valve body, and a first sealing ring is arranged between the graphite fire-proof ring and the valve ball.
The self-locking assembly comprises a second spring, the second spring is fixedly installed on the inner wall of the installation cavity, and one end of the second spring is fixedly connected with the electromagnet.
Two installation cavities are formed, the two installation cavities are located on two sides of the valve rod respectively, and the size of the first fixing hole is larger than that of the electromagnet.
The fixed subassembly includes fixed case, fixed incasement fixed mounting has electric putter, electric putter's top fixedly connected with movable plate, fixedly connected with kelly on the movable plate, the top of kelly runs through fixed case and extends to the top of fixed case, fixedly connected with spring three between fixed case and the movable plate, the surface at the kelly is established to three covers of spring, fixed incasement still fixed mounting has the slide bar, movable plate and slide bar sliding connection.
The clamping rod is clamped with the second fixing hole.
And a second sealing ring is arranged on the outer wall of the top end of the valve ball.
And the rotating handle is provided with an anti-slip sleeve.
The utility model has the beneficial effects that: the sealing assembly and the sealing ring II can play a role in sealing, when a fire disaster happens to the pipeline, the sealing ring I and the sealing ring II are roasted and melted by fire, and the graphite fire-proof ring can directly abut against the valve ball under the elastic action of the spring I to play a role in sealing and prevent leakage; the valve rod can be limited through the fixing component and the self-locking component, so that the valve rod is prevented from automatically rotating due to the high-pressure impact force of a medium or the misoperation of a rotating handle, and the condition that the medium flows or accidents occur is effectively avoided; when the device is adjusted, the electric push rod and the electromagnet are controlled to release the limitation on the valve rod, the rotating handle 5 is rotated to drive the valve rod to rotate to throttle or adjust the flow of the device, the ratchet wheel rotates along with the valve rod, the clamping pawl can only rotate towards one direction under the action of the limiting block, the clamping pawl is rotatably clamped to the side wall of the ratchet wheel, the ratchet wheel is limited, and the valve rod can be prevented from rotating to cause an accident; the operation is simple and convenient, and the self-locking effect is good.
Drawings
Fig. 1 is a schematic structural diagram of a self-locking ball valve of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a of the self-locking ball valve of the present invention.
Fig. 3 is an enlarged view of fig. 1 at B of the self-locking ball valve of the present invention.
Fig. 4 is a top view of a connecting plate of a self-locking ball valve of the present invention.
Fig. 5 is a schematic structural diagram of a fixing assembly of the self-locking ball valve of the present invention.
(1, valve body; 2, valve ball; 3, valve rod; 4, fixing hole I; 5, rotary handle; 6, flow channel; 7, graphite fire-proof ring; 8, spring I; 9, sealing ring I; 10, sealing ring II; 11, fixing seat; 12, mounting cavity; 13, spring II; 14, electromagnet; 15, connecting rod; 16, connecting plate; 17, clamping pawl; 18, limiting block; 19, ratchet wheel; 20, fixing hole II; 21, empty slot; 22, fixing box; 23, electric push rod; 24, moving plate; 25, clamping rod; 26, spring III; 27, sliding rod; 28, anti-skid sleeve)
Detailed Description
The utility model will be further explained with reference to the drawings.
The utility model provides a self-locking ball valve, which comprises a valve body 1, wherein a valve ball 2 is movably connected in the valve body 1, the top end of the valve ball 2 is fixedly connected with a valve rod 3, a fixing hole I4 is arranged on the valve rod 3, a rotating handle 5 is arranged at the top end of the valve rod 3, a flow channel 6 is transversely arranged in the valve body 1, a sealing assembly is arranged at the position, close to the valve ball 2, of the flow channel 6, a fixing seat 11 is fixedly connected at the top end of the valve body 1, the fixing seat 11 is sleeved on the outer surface of the valve rod 3, a mounting cavity 12 is arranged in the fixing seat 11, a self-locking assembly is arranged in the mounting cavity 12, a fixing assembly is arranged on the fixing seat 11, a connecting plate 16 is fixedly connected on the fixing seat 11 through a connecting rod 15, a plurality of clamping pawls 17 are rotatably connected on the connecting plate 16 through a rotating shaft, a plurality of limiting blocks 18 are arranged on the connecting plate 16, an empty groove 21 is formed in the connecting plate 16, a ratchet wheel 19 is arranged in the empty groove 21, the ratchet wheel 19 is fixedly connected with the outer surface of the valve rod 3, and a plurality of second fixing holes 20 are formed in the ratchet wheel 19.
The sealing assembly comprises a graphite fire-proof ring 7, a spring I8 is arranged between the graphite fire-proof ring 7 and the valve body 1, and a sealing ring I9 is arranged between the graphite fire-proof ring 7 and the valve ball 2.
The self-locking assembly comprises a second spring 13, the second spring 13 is fixedly installed on the inner wall of the installation cavity 12, and one end of the second spring 13 is fixedly connected with an electromagnet 14.
Two installation cavities 12 are formed in the valve rod 3, the two installation cavities 12 are located on two sides of the valve rod 3 respectively, and the size of the first fixing hole 4 is larger than that of the electromagnet 14.
Fixed subassembly includes fixed case 22, fixed mounting has electric putter 23 in the fixed case 22, electric putter 23's top fixedly connected with movable plate 24, fixedly connected with kelly 25 on the movable plate 24, the top of kelly 25 runs through fixed case 22 and extends to the top of fixed case 22, three 26 fixedly connected with springs between fixed case 22 and the movable plate 24, three 26 covers of springs are established at kelly 25's surface, it has slide bar 27 to go back fixed mounting in the fixed case 22, movable plate 24 and slide bar 27 sliding connection.
The clamping rod 25 is clamped with the second fixing hole 20.
And a second sealing ring 10 is arranged on the outer wall of the top end of the valve ball 2.
The rotating handle 5 is provided with an anti-slip sleeve 28.
The working principle is as follows:
when the device is adjusted, the electromagnet 12 is powered off through an external controller, the electromagnet 12 can restore to the original position under the action of the first spring 13, the limitation on the valve rod 3 is removed, the external controller controls the electric push rod 23 to drive the moving plate 24 to move downwards, and further drive the clamping rod 25 to move downwards, so that the clamping rod 25 is separated from the second fixed hole 20, the valve rod 3 can be rotated to regulate the throttling or flow rate of the device, the ratchet wheel 19 can rotate along with the valve rod 3, the clamping pawl 17 can only rotate towards one direction under the action of the limiting block 18, the clamping pawl 17 is rotatably clamped to the side wall of the ratchet wheel 19, the ratchet wheel is limited, and the valve rod 3 can be prevented from rotating; the electric push rod 23 and the electromagnet 12 are reversely controlled to be electrified, so that the clamping rod 25 can move upwards and be inserted into the second fixing hole 20, the electromagnet 12 is mutually attracted and inserted into the first fixing hole 4, the valve rod 3 can be limited, the valve rod 3 is prevented from automatically rotating due to the medium high-pressure impact force or the rotating handle 5 is mistakenly operated, and the medium flowing or accidents are effectively avoided; the first sealing ring 9 and the second sealing ring 10 play a role in preventing leakage, when a fire disaster happens to the pipeline, the first sealing ring 9 and the second sealing ring 10 can be roasted and melted by fire, and the graphite fire-proof ring 7 can directly abut against the valve ball 2 under the elastic action of the first spring 8 to play a role in sealing and prevent leakage.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (8)
1. A self-locking ball valve is characterized in that: comprises a valve body (1), a valve ball (2) is movably connected in the valve body (1), a valve rod (3) is fixedly connected at the top end of the valve ball (2), a first fixing hole (4) is formed in the valve rod (3), a rotating handle (5) is arranged at the top end of the valve rod (3), a flow channel (6) is transversely arranged in the valve body (1), a sealing component is arranged at a position, close to the valve ball (2), of the flow channel (6), a fixing seat (11) is fixedly connected at the top end of the valve body (1), the fixing seat (11) is sleeved on the outer surface of the valve rod (3), a mounting cavity (12) is formed in the fixing seat (11), a self-locking component is arranged in the mounting cavity (12), a fixing component is arranged on the fixing seat (11), and a connecting plate (16) is fixedly connected on the fixing seat (11) through a connecting rod (15), the connecting plate (16) is rotatably connected with a plurality of clamping pawls (17) through a rotating shaft, a plurality of limiting blocks (18) are arranged on the connecting plate (16), an empty groove (21) is formed in the connecting plate (16), a ratchet wheel (19) is arranged in the empty groove (21), the ratchet wheel (19) is fixedly connected with the outer surface of the valve rod (3), and a plurality of second fixing holes (20) are formed in the ratchet wheel (19).
2. The self-locking ball valve according to claim 1, wherein: the sealing assembly comprises a graphite fire-proof ring (7), a first spring (8) is arranged between the graphite fire-proof ring (7) and the valve body (1), and a first sealing ring (9) is arranged between the graphite fire-proof ring (7) and the valve ball (2).
3. The self-locking ball valve according to claim 1, wherein: the self-locking assembly comprises a second spring (13), the second spring (13) is fixedly installed on the inner wall of the installation cavity (12), and one end of the second spring (13) is fixedly connected with an electromagnet (14).
4. A self-locking ball valve according to claim 3, wherein: two installation cavities (12) are formed, the two installation cavities (12) are located on two sides of the valve rod (3) respectively, and the size of the first fixing hole (4) is larger than that of the electromagnet (14).
5. The self-locking ball valve according to claim 1, wherein: the fixed subassembly includes fixed case (22), fixed mounting has electric putter (23) in fixed case (22), the top fixedly connected with movable plate (24) of electric putter (23), fixedly connected with kelly (25) on movable plate (24), the top of kelly (25) runs through fixed case (22) and extends to the top of fixed case (22), fixedly connected with spring three (26) between fixed case (22) and movable plate (24), the surface at kelly (25) is established in spring three (26) cover, it has slide bar (27) to go back fixed mounting in fixed case (22), movable plate (24) and slide bar (27) sliding connection.
6. The self-locking ball valve according to claim 5, wherein: the clamping rod (25) is clamped with the second fixing hole (20).
7. The self-locking ball valve according to claim 1, wherein: and a second sealing ring (10) is arranged on the outer wall of the top end of the valve ball (2).
8. The self-locking ball valve according to claim 1, wherein: and an anti-skid sleeve (28) is arranged on the rotating handle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122685889.XU CN216895870U (en) | 2021-11-04 | 2021-11-04 | Self-locking ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122685889.XU CN216895870U (en) | 2021-11-04 | 2021-11-04 | Self-locking ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895870U true CN216895870U (en) | 2022-07-05 |
Family
ID=82200287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122685889.XU Active CN216895870U (en) | 2021-11-04 | 2021-11-04 | Self-locking ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895870U (en) |
-
2021
- 2021-11-04 CN CN202122685889.XU patent/CN216895870U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211009972U (en) | High strength integral type pair ball valve | |
| KR100992084B1 (en) | Twin disc moving type valve | |
| CN216895870U (en) | Self-locking ball valve | |
| CN111503309B (en) | High-pressure metal sealing ball valve | |
| CN218780776U (en) | Four-eccentric butterfly valve | |
| CN204284551U (en) | A kind of on-line control opens and closes the safety check of speed | |
| CN111173951A (en) | Gate valve | |
| CN201496609U (en) | Pilot-operated type hard-seal fixed ball valve | |
| CN2913779Y (en) | Escape valve fast switch over device for triple ball-type valve satisfying backup discharging ability | |
| CN104455586A (en) | Check valve for online adjustment of opening-closing speed | |
| CN105065701A (en) | Hard sealing lifting type brake plug valve and control method thereof | |
| US2666617A (en) | Ball valve | |
| CN112815111A (en) | Ball valve | |
| CN114294438A (en) | Petroleum machinery valve with emergency blocking function | |
| CN111412308A (en) | Four-way ball valve | |
| CN213117529U (en) | Handle butterfly valve with double channels | |
| CN201636348U (en) | Rotary-cut valve | |
| CN111412303A (en) | Low-torque ball valve | |
| CN111536255A (en) | High-pressure ball valve | |
| CN206190930U (en) | Butterfly valve with intelligence headstock gear | |
| CN113883294B (en) | Gate valve | |
| CN208474546U (en) | A kind of coal-bed gas exploitation interior mode preload ball valve | |
| CN220249106U (en) | Pneumatic stop valve convenient to close | |
| CN210978600U (en) | Ball valve for relieving flow velocity and reducing damage to ball body | |
| CN109114246B (en) | Self-aligning dual hydraulic ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |