CN216009756U - Metal hard seal ball valve with variable flow control - Google Patents
Metal hard seal ball valve with variable flow control Download PDFInfo
- Publication number
- CN216009756U CN216009756U CN202122531518.6U CN202122531518U CN216009756U CN 216009756 U CN216009756 U CN 216009756U CN 202122531518 U CN202122531518 U CN 202122531518U CN 216009756 U CN216009756 U CN 216009756U
- Authority
- CN
- China
- Prior art keywords
- sliding
- control valve
- plate
- ball valve
- fixedly connected
- 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 belongs to the field of metal hard sealing ball valves, in particular to a metal hard sealing ball valve with variable flow control, which comprises a ball valve body; the ball valve comprises a ball valve body, a control valve, a hand wheel, a sliding plate, a disc and a handle, wherein the ball valve body is internally communicated with the control valve, the hand wheel is connected with the control valve through an internal thread, two fixed blocks are fixedly arranged on the side wall of the control valve, a sliding groove is formed in the top end of each fixed block, the inner wall of the sliding groove is connected with the sliding plate in a sliding mode, the sliding plate is L-shaped, a sliding rod is inserted into the short arm end of the sliding plate in a penetrating mode, and the disc is fixedly arranged at the top end of the sliding rod; can drive the drive plate through the gear and slide downwards to make the drive plate drive the slide bar and slide, the ring can be pushed down to the boss on pressure disk and the pressure disk this moment, thereby makes the sealing washer tightly laminate on the control valve, and the sealing washer can seal the junction of hand wheel and control valve this moment, has played and has carried out sealed effect to the junction of hand wheel and control valve, and then has improved the result of use of ball valve.
Description
Technical Field
The utility model relates to a metal ball valve field that seals firmly specifically is a metal ball valve that seals firmly of changeable control of flow.
Background
The metal hard sealing ball valve can control the flow rate of gas or liquid passing through the ball valve through a control valve.
The existing valve on the metal hard seal ball valve for conveying gas needs to be rotated by a hand wheel, so that the function of controlling the flow rate of the gas can be achieved;
because the hand wheel is valve threaded connection, the hand wheel uses for a long time, can increase the thread clearance of valve and hand wheel, and gaseous threaded connection department from valve and hand wheel of probably revealing this moment, consequently, provides a metal hard seal ball valve that flow changeable control to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
In order to compensate prior art's not enough, solve because the hand wheel has valve threaded connection, the hand wheel uses for a long time, can increase the thread clearance of valve and hand wheel, and the problem that the threaded connection department of valve and hand wheel was revealed can be followed to gas this moment, the utility model provides a but metal hard seal ball valve of changeable control of flow.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a metal hard sealing ball valve with changeable flow control, which comprises a ball valve body; the ball valve comprises a ball valve body, and is characterized in that a control valve is communicated with the ball valve body, a hand wheel is connected with the control valve in an internal thread manner, two fixed blocks are fixedly mounted on the side wall of the control valve, a sliding groove is formed in the top end of each fixed block, a sliding plate is connected to the inner wall of the sliding groove in a sliding manner and is in an L shape, a sliding rod is inserted into the short arm end of the sliding plate in a penetrating manner, a disc is fixedly mounted at the top end of the sliding rod, a driving plate is fixedly connected to the surface of the sliding rod and is in an L shape, a sawtooth groove is uniformly formed in the long arm end of the driving plate, a connecting plate is fixedly connected to one side of the sliding plate, a motor is mounted on the connecting plate, a gear is fixedly connected to the output end of the motor and is meshed with the sawtooth groove, a circular ring is sleeved on the hand wheel, and a sealing ring is fixedly mounted at the bottom end of the circular ring; the motor drives the gear to rotate, the gear drives the driving plate with the sawtooth grooves to slide upwards at the moment, the sliding rod is not contacted with the circular ring any more at the moment, then the sliding plate slides, the pressure plate is moved away from the upper part of the circular ring at the moment, the hand wheel is detached from the control valve, then the sealing ring is taken away from the control valve, the sealing ring is detached, when the sealing ring needs to be installed, the sealing ring is placed on the control valve, the hand wheel is installed on the control valve, then the sliding plate is pushed, the sliding plate is driven to drive the pressure plate to move to the upper part of the circular ring, then the motor is started, the output end of the motor is reversed, the gear drives the driving plate to slide downwards, the driving plate drives the sliding rod to slide, the sliding rod presses the circular ring at the moment, the sealing ring is tightly attached to the control valve, the connecting part of the hand wheel and the control valve is sealed by the sealing ring at the moment, the sealing function of the connection part of the hand wheel and the control valve is achieved, and the using effect of the ball valve is further improved.
Preferably, the bottom end of the sliding rod is fixedly connected with a pressure plate, and the side wall of the pressure plate is fixedly connected with a boss; the sliding rod slides downwards, and the pressure plate and the boss on the pressure plate press the circular ring, so that the sealing ring is tightly attached to the control valve.
Preferably, an elastic rope is fixedly installed at the long arm end of the sliding plate, the other end of the elastic rope is fixedly connected with the sliding chute, and a limiting plate is inserted through one side of the fixing block; through the pulling limiting plate for the limiting plate no longer blocks the slide, and the elasticity rope can be because the recovery pulling slide of elasticity this moment, through sliding the slide, makes the slide get back to because, then promotes the limiting plate, makes the limiting plate block the slide, has played and has carried out spacing effect to the slide.
Preferably, a sealing cylinder is placed on the control valve, a sealing gasket is fixedly connected to the inner wall of the sealing cylinder, two rectangular blocks are fixedly connected to the side wall of the control valve, an insertion rod is inserted into one side, away from the control valve, of each rectangular block in a sliding manner, the insertion rod is U-shaped, and one end, away from the rectangular block, of each insertion rod is inserted into the sealing cylinder; through the pulling inserted bar for the inserted bar slides out from sealed section of thick bamboo, then take a sealed section of thick bamboo away from the control valve, when needs are installed sealed section of thick bamboo, lay sealed section of thick bamboo on the control valve, sealed the pad can contact with the ring this moment, sealed section of thick bamboo can block sealing washer and ring simultaneously, played the effect of further sealing up the junction of control valve and hand wheel, the junction leakproofness of control valve and hand wheel has been improved, then promote the inserted bar, make the inserted bar inject in sealed section of thick bamboo, sealed section of thick bamboo this moment can be fixed.
Preferably, the surface of the inserted link is fixedly connected with a connecting disc, one side of the rectangular block is fixedly provided with a supporting plate, an air cylinder is fixedly connected in the supporting plate, a push rod is connected in the air cylinder in a sliding manner, one end of the push rod, far away from the air cylinder, is fixedly provided with a push disc, and one end of the air cylinder, far away from the push rod, is fixedly connected with an air bag; through the pulling push disc, make push disc pulling push rod, the piston on the push rod can take away the air in the inflator this moment, and the gas in the gasbag can disappear this moment to make the gasbag no longer extrude the connection pad, through promoting the disc, the disc can promote the push rod this moment, makes the push rod promote the piston, thereby the inflator inflates the gasbag, and the connection pad can be pushed down to the gasbag this moment, thereby makes the inserted bar fixed.
Preferably, one side of the push disc close to the push rod is fixedly connected with a second spring, and one end of the second spring, far away from the push disc, is fixedly connected with the support plate; by loosening the push disc, the second spring pulls the disc due to the recovery of the elastic force, and the disc pushes the push rod at the moment, so that the effect of resetting the push rod is achieved.
The utility model discloses an useful part lies in:
1. can drive the drive plate through the gear and slide downwards to make the drive plate drive the slide bar and slide, the ring can be pushed down to the boss on pressure disk and the pressure disk this moment, thereby makes the sealing washer tightly laminate on the control valve, and the sealing washer can seal the junction of hand wheel and control valve this moment, has played and has carried out sealed effect to the junction of hand wheel and control valve, and then has improved the result of use of ball valve.
2. On laying the control valve through a sealed section of thick bamboo, sealed the pad this moment can contact with the ring, and a sealed section of thick bamboo can block sealing washer and ring simultaneously, has played the effect of further sealing up the junction of control valve and hand wheel, has improved the junction leakproofness of control valve and hand wheel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic perspective view of a first embodiment;
FIG. 2 is a schematic structural view of a ball valve body;
FIG. 3 is a schematic structural view of a seal ring;
FIG. 4 is a schematic structural diagram of a fixing block;
FIG. 5 is a schematic structural view of a sealing cartridge;
FIG. 6 is a schematic view of the structure at A in FIG. 5;
FIG. 7 is a schematic structural diagram of a second magnetic plate according to an embodiment.
In the figure: 1. a ball valve body; 2. a control valve; 3. a hand wheel; 4. a fixed block; 5. a limiting plate; 6. an elastic cord; 7. a chute; 8. a connecting plate; 9. a motor; 10. a gear; 11. a slide plate; 12. a disc; 13. a slide bar; 14. a platen; 15. a drive plate; 16. a sawtooth groove; 17. a circular ring; 18. a seal ring; 19. a gasket; 20. a sealing cylinder; 21. a rectangular block; 22. a connecting disc; 23. inserting a rod; 24. a support plate; 25. an air cylinder; 26. a second spring; 27. a push rod; 28. pushing the disc; 29. a magnetic plate; 30. an air bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1-6, a metal hard seal ball valve with variable flow rate control includes a ball valve body 1; a control valve 2 is communicated with the interior of a ball valve body 1, a hand wheel 3 is connected with the control valve 2 through an internal thread, two fixed blocks 4 are fixedly mounted on the side wall of the control valve 2, a chute 7 is formed in the top end of each fixed block 4, a sliding plate 11 is connected to the inner wall of the chute 7 in a sliding manner, the sliding plate 11 is L-shaped, a sliding rod 13 is inserted into the short arm end of the sliding plate 11 in a penetrating manner, a disc 12 is fixedly mounted at the top end of the sliding rod 13, a driving plate 15 is fixedly connected to the surface of the sliding rod 13, the driving plate 15 is L-shaped, a sawtooth groove 16 is uniformly formed in the long arm end of the driving plate 15, a connecting plate 8 is fixedly connected to one side of the sliding plate 11, a motor 9 is mounted on the connecting plate 8, a gear 10 is fixedly connected to the output end of the motor 9, the gear 10 is meshed with the sawtooth groove 16, a circular ring 17 is sleeved on the hand wheel 3, and a sealing ring 18 is fixedly mounted at the bottom end of the circular ring 17; when the device works, the motor 9 is driven to drive the gear 10 to rotate, the gear 10 drives the driving plate 15 with the sawtooth grooves 16 to slide upwards, the sliding rod 13 is not contacted with the circular ring 17 any more, then the sliding plate 11 slides, the pressure plate 14 is moved away from the upper part of the circular ring 17, the hand wheel 3 is detached from the control valve 2, the sealing ring 18 is taken away from the control valve 2, the sealing ring 18 is detached, when the sealing ring 18 needs to be installed, the sealing ring 18 is placed on the control valve 2, then the hand wheel 3 is installed on the control valve 2, then the sliding plate 11 is pushed, the sliding plate 11 drives the pressure plate 14 to move to the upper part of the circular ring 17, then the motor 9 is started, the output end of the motor 9 is reversed, the gear 10 drives the driving plate 15 to slide downwards, and the driving plate 15 drives the sliding rod 13 to slide, at this time, the sliding rod 13 presses the circular ring 17, so that the sealing ring 18 is tightly attached to the control valve 2, and at this time, the sealing ring 18 seals the joint of the hand wheel 3 and the control valve 2, so that the joint of the hand wheel 3 and the control valve 2 is sealed, and the use effect of the ball valve is further improved.
The bottom end of the sliding rod 13 is fixedly connected with a pressure plate 14, and the side wall of the pressure plate 14 is fixedly connected with a boss; in operation, by sliding rod 13 downward, pressure plate 14 and the boss on pressure plate 14 press against ring 17, thereby causing sealing ring 18 to fit tightly against control valve 2.
An elastic rope 6 is fixedly installed at the long arm end of the sliding plate 11, the other end of the elastic rope 6 is fixedly connected with the sliding chute 7, and a limiting plate 5 is inserted through one side of the fixed block 4; the during operation through pulling limiting plate 5 for limiting plate 5 no longer blocks slide 11, and elasticity rope 6 can be because the recovering pulling slide 11 of elasticity this moment, through sliding slide 11, makes slide 11 get back to because, then promotes limiting plate 5, makes limiting plate 5 block slide 11, has played and has carried out spacing effect to slide 11.
A sealing barrel 20 is placed on the control valve 2, a sealing gasket 19 is fixedly connected to the inner wall of the sealing barrel 20, two rectangular blocks 21 are fixedly connected to the side wall of the control valve 2, an insertion rod 23 is inserted into one side, away from the control valve 2, of each rectangular block 21 in a sliding mode, the insertion rod 23 is U-shaped, and one end, away from the rectangular block 21, of the insertion rod 23 is inserted into the sealing barrel 20; during operation, the inserting rod 23 is pulled to slide out of the sealing cylinder 20, then the sealing cylinder 20 is taken away from the control valve 2, when the sealing cylinder 20 needs to be installed, the sealing cylinder 20 is placed on the control valve 2, the sealing gasket 19 can be in contact with the circular ring 17 at the moment, meanwhile, the sealing cylinder 20 can block the sealing ring 18 and the circular ring 17, the effect of further sealing the connection position of the control valve 2 and the hand wheel 3 is achieved, the sealing performance of the connection position of the control valve 2 and the hand wheel 3 is improved, then the inserting rod 23 is pushed, the inserting rod 23 is inserted into the sealing cylinder 20, and at the moment, the sealing cylinder 20 can be fixed.
The surface of the inserted link 23 is fixedly connected with a connecting disc 22, one side of the rectangular block 21 is fixedly provided with a supporting plate 24, an air cylinder 25 is fixedly connected in the supporting plate 24, a push rod 27 is slidably connected in the air cylinder 25, one end of the push rod 27 far away from the air cylinder 25 is fixedly provided with a push disc 28, and one end of the air cylinder 25 far away from the push rod 27 is fixedly connected with an air bag 30; in operation, the push disc 28 is pulled to enable the push disc 28 to pull the push rod 27, the piston on the push rod 27 can pump air in the air cylinder 25, the air in the air bag 30 can disappear at the moment, so that the air bag 30 can not extrude the connecting disc 22, the disc 12 can push the push rod 27 to enable the push rod 27 to push the piston, the air cylinder 25 inflates the air bag 30, the air bag 30 can press the connecting disc 22 at the moment, and the inserting rod 23 is fixed.
One side of the push disc 28 close to the push rod 27 is fixedly connected with a second spring 26, and one end of the second spring 26 far away from the push disc 28 is fixedly connected with the support plate 24; in operation, by releasing the pushing plate 28, the second spring 26 pulls the disc 12 due to the restoration of the elastic force, and the disc 12 pushes the push rod 27, thereby restoring the push rod 27.
Example two
Referring to fig. 7, in a first comparative example, as another embodiment of the present invention, a magnetic plate 29 is fixedly installed on a surface of a limiting plate 5, and the surface of the magnetic plate 29 is magnetically connected to a fixed block 4; during operation, through promoting limiting plate 5 for limiting plate 5 drives magnetic sheet 29 and slides, and magnetic sheet 29 can inhale with fixed block 4 magnetism this moment, thereby fixes limiting plate 5.
The working principle is that the motor 9 is driven to drive the gear 10 to rotate, the gear 10 drives the driving plate 15 with the sawtooth grooves 16 to slide upwards, the pressure plate 14 is not contacted with the circular ring 17 any more, then the limiting plate 5 is pulled, the limiting plate 5 does not block the sliding plate 11 any more, the elastic rope 6 pulls the sliding plate 11 due to the elastic force recovery, the pressure plate 14 is moved away from the upper side of the circular ring 17, the hand wheel 3 is detached from the control valve 2, the sealing ring 18 is taken away from the control valve 2, the sealing ring 18 is detached, when the sealing ring 18 needs to be installed, the sealing ring 18 is placed on the control valve 2, the hand wheel 3 is installed on the control valve 2, then the sliding plate 11 is pushed, the sliding plate 11 drives the pressure plate 14 to move to the upper side of the circular ring 17, the limiting plate 5 is pushed at the moment, the limiting plate 5 blocks the sliding plate 11, then the motor 9 is started, so that the output end of the motor 9 rotates reversely, the gear 10 can drive the drive plate 15 to slide downwards, the drive plate 15 drives the slide rod 13 to slide, the circular ring 17 can be pressed by the bosses on the pressure plate 14 and the pressure plate 14, the sealing ring 18 is tightly attached to the control valve 2, the sealing ring 18 can seal the joint of the hand wheel 3 and the control valve 2, the effect of sealing the joint of the hand wheel 3 and the control valve 2 is achieved, and the using effect of the ball valve is further improved.
By pulling the pushing plate 28 so that the pushing plate 28 pulls the pushing rod 27, at this time, the piston on the pushing rod 27 will draw the air in the air cylinder 25 away, at this time, the air in the air bag 30 will disappear, so that the air bag 30 will not press the connecting disc 22, then the inserting rod 23 will be pulled so that the inserting rod 23 will slide out from the sealing cylinder 20, then the sealing cylinder 20 will be taken away from the control valve 2, when the sealing cylinder 20 needs to be installed, the sealing cylinder 20 will be placed on the control valve 2, at this time, the sealing gasket 19 will contact with the ring 17, at the same time, the sealing cylinder 20 will block the sealing ring 18 and the ring 17, the sealing effect of further sealing the connection between the control valve 2 and the hand wheel 3 is achieved, the sealing performance of the connection between the control valve 2 and the hand wheel 3 is improved, then the inserting rod 23 will be pushed so that the inserting rod 23 is inserted into the sealing cylinder 20, at this time, the sealing cylinder 20 will be fixed, then the pushing plate 28 will be released, so that the second spring 26 will pull the disc 12 because of the elastic force is restored, at this time, the disc 12 pushes the push rod 27, so that the push rod 27 pushes the piston, and the air chamber 25 inflates the air bag 30, and at this time, the air bag 30 presses the connecting plate 22, so that the plunger 23 is fixed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a metal hard seal ball valve of changeable control of flow which characterized in that: comprises a ball valve body (1); the ball valve is characterized in that a control valve (2) is communicated with the ball valve body (1), a hand wheel (3) is connected with the control valve (2) through an inner thread, two fixed blocks (4) are fixedly mounted on the side wall of the control valve (2), a sliding groove (7) is formed in the top end of each fixed block (4), a sliding plate (11) is connected to the inner wall of the sliding groove (7) in a sliding mode, the sliding plate (11) is L-shaped, a sliding rod (13) is arranged at the short arm end of the sliding plate (11) in a penetrating and inserting mode, a disc (12) is fixedly mounted at the top end of the sliding rod (13), a driving plate (15) is fixedly connected to the surface of the sliding rod (13), the driving plate (15) is L-shaped, a sawtooth groove (16) is uniformly formed in the long arm end of the driving plate (15), a connecting plate (8) is fixedly connected to one side of the sliding plate (11), and a motor (9) is mounted on the connecting plate (8), the output end of motor (9) fixedly connected with gear (10), gear (10) and sawtooth groove (16) meshing, the cover has ring (17) on hand wheel (3), the bottom fixed mounting of ring (17) has sealing washer (18).
2. The metal hard seal ball valve with changeable control of flow rate according to claim 1, characterized in that: the bottom end of the sliding rod (13) is fixedly connected with a pressure plate (14), and the side wall of the pressure plate (14) is fixedly connected with a boss.
3. The metal hard seal ball valve with changeable control of flow rate according to claim 2, characterized in that: the long arm end fixed mounting of slide (11) has elasticity rope (6), the other end and spout (7) fixed connection of elasticity rope (6), one side of fixed block (4) is run through and is inserted and be equipped with limiting plate (5).
4. A metal-to-metal hard-seal ball valve with variable flow control according to claim 3, wherein: the sealing cylinder (20) is placed on the control valve (2), a sealing gasket (19) is fixedly connected to the inner wall of the sealing cylinder (20), two rectangular blocks (21) are fixedly connected to the side wall of the control valve (2), one side, far away from the control valve (2), of each rectangular block (21) is slidably inserted with an insertion rod (23), each insertion rod (23) is U-shaped, and one end, far away from the rectangular blocks (21), of each insertion rod (23) is inserted into the sealing cylinder (20).
5. The metal hard seal ball valve with changeable control of flow rate according to claim 4, characterized in that: the fixed surface of inserted bar (23) is connected with connection pad (22), one side fixed mounting of rectangular block (21) has backup pad (24), fixedly connected with inflator (25) in backup pad (24), sliding connection has push rod (27) in inflator (25), the one end fixed mounting that inflator (25) were kept away from in push rod (27) has push disk (28), the one end fixedly connected with gasbag (30) of push rod (27) are kept away from in inflator (25), the one end fixed mounting that push disk was kept away from in push rod (27) has the piston.
6. The metal hard seal ball valve with changeable control of flow rate according to claim 5, characterized in that: one side of the push disc (28) close to the push rod (27) is fixedly connected with a second spring (26), and one end, far away from the push disc (28), of the second spring (26) is fixedly connected with the support plate (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531518.6U CN216009756U (en) | 2021-10-19 | 2021-10-19 | Metal hard seal ball valve with variable flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531518.6U CN216009756U (en) | 2021-10-19 | 2021-10-19 | Metal hard seal ball valve with variable flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009756U true CN216009756U (en) | 2022-03-11 |
Family
ID=80586840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122531518.6U Active CN216009756U (en) | 2021-10-19 | 2021-10-19 | Metal hard seal ball valve with variable flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009756U (en) |
-
2021
- 2021-10-19 CN CN202122531518.6U patent/CN216009756U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206234089U (en) | Mining compressor air stable-pressure device | |
| CN216009756U (en) | Metal hard seal ball valve with variable flow control | |
| CN115217435B (en) | Polished rod sealing device with pressurization function for oil field | |
| CN212360123U (en) | Micro-flow metering pump with diaphragm mechanism | |
| CN210264622U (en) | Hydraulic and pneumatic double-control cylindrical blowout preventer | |
| CN107842549A (en) | Acetabula device | |
| CN209772839U (en) | High-efficient type liquid crystal display belt cleaning device | |
| CN110657314B (en) | Water plugging equipment for maintaining water supply pipeline | |
| US8656964B1 (en) | Auto-filling assembly for a refillable sprayer | |
| CN210889284U (en) | Pneumatic diaphragm pump | |
| CN213361183U (en) | Guide sleeve for manual pipe clamp valve | |
| CN210088240U (en) | Automatic inflating gun | |
| CN209839249U (en) | Check valve diaphragm and check valve | |
| CN202612083U (en) | Knobby suction valve | |
| CN113653699A (en) | Novel hydraulic oil cylinder | |
| CN2924066Y (en) | Two-tube air-extraction device of vacuum bag | |
| CN207073610U (en) | A kind of corrosion-resistant one-way valve door | |
| CN219932417U (en) | Miniature electric high negative pressure diaphragm pump | |
| CN111895210B (en) | Plugging device for pressure pipeline | |
| CN220772030U (en) | Anti-abrasion toy gun structure | |
| CN105996788B (en) | Drinking bucket water-taking device | |
| CN216009668U (en) | Novel stop valve | |
| CN212898404U (en) | Plug throwing device | |
| CN217130512U (en) | Combined valve plate | |
| CN217950653U (en) | Column type buffering package that plunger pump was used |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |