CN209665292U - A kind of split type replacing valve tool - Google Patents
A kind of split type replacing valve tool Download PDFInfo
- Publication number
- CN209665292U CN209665292U CN201920466094.XU CN201920466094U CN209665292U CN 209665292 U CN209665292 U CN 209665292U CN 201920466094 U CN201920466094 U CN 201920466094U CN 209665292 U CN209665292 U CN 209665292U
- Authority
- CN
- China
- Prior art keywords
- split type
- screw thread
- plug assembly
- tightening operation
- operation cylinder
- 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.)
- Expired - Fee Related
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model belongs to pipeline operation equipment technical field more particularly to a kind of split type replacing valve tool.Including operating assembly, plug assembly；Operating assembly includes expansive working cylinder, tightening operation cylinder, double thread pipe, sealing nut；Plug assembly includes expansion rod, compression ring, elastomer, connector.The split type structure of the utility model, back-end operations structure will not detachably interfere valve to dismount, reduce operation content, front end plug assembly is unaffected, can multiple plug assemblies match, in its pipeline structure that can further apply all kinds of different pressure levels such as various pipes valve, such as natural gas, water route and seal request.
Description
Technical field
The utility model belongs to pipeline operation equipment technical field more particularly to a kind of split type replacing valve tool.
Background technique
With the popularization of gas supply, fuel gas conduit huge on a large scale has been built in each city and residential block at home
Net, the element of gas ductwork is mainly the valve etc. of gas pipeline and each gas pipeline of control, safe from eliminating
Hidden danger, the purpose for improving combustion gas service efficiency are set out, and gas supply company not only needs to carry out scientific and reasonable design of pipe networks, also
It needs periodically to carry out Maintenance and Repair after pipeline network construction is completed, and interim emergency situations is handled rapidly；Typically,
Gas pipeline has carried out effective protection and protection, is generally not in destroy, and be located at each combustion during routine use
Valve between feed channel etc. is due to frequent closed procedure, it is easier to the problems such as all kinds of damages, failure occur, once valve occurs
Damage, then may lead gas leakage, air pressure reduction, it is inconvenient the problems such as.
Therefore, the demand based on daily real work, there has been proposed all kinds of for carrying out the tool of replacing valve, to mention
The speed and effect of high replacing valve, as the patent of Patent No. 200620155128.6 provides a kind of valve band gas replacement
Specific purpose tool cannot fully achieve its purpose to improve the efficiency of replacing valve in actual use, be mainly
Due to: 1, in valve disassembly process, push pipe 3, pull rod 4, nut 7, the needs of screw thread 8 are connect with valve rear end pipeline always, on the one hand
Cause in valve disassembly process, need from valve duct to intert above-mentioned 3,4,7,8 elements repeatedly, on the inside of each element and valve
It is very easy to collision, squeezes, cause disassembly process cumbersome, the ring wear on valve inner wall and device has friction hair
Heat, electrostatic lead to the danger of spark；2, the tool needs to rely on flange and connecting hole on valve that behaviour is fixed in device
Make, but actually existing valve both ends are mostly screw socket structure, can not be used completely；3, according to code requirement, plug assembly is answered
Can firmly rest on it is completely enclosed to realize in the pipeline of valve rear end, but after valve removes in the tool, the top of rear end
Pipe 3, pull rod 4 and attached above nut, screw thread and plug assembly are structure as a whole, above-mentioned after plug assembly installs
Structure can be stretched out out of pipeline, can squeeze when its skew or whereabouts naturally and plug assembly is pulled to stop the envelope for influencing plug assembly
Effect is closed, therefore needs to help the part stretched out always during operation, is especially arranged in vertical in numerous nozzles
In application, plug assembly is easier to be affected on valve.
Utility model content
The purpose of utility model is that providing one kind has split type structure, can effectively improve plug assembly and block effect
Fruit, and the split type replacing valve tool that replacing valve process is simple and fast.
To achieve the above object, utility model adopts the following technical scheme that.
A kind of split type replacing valve tool, including operating assembly, plug assembly；Operating assembly include expansive working cylinder,
Tightening operation cylinder, double thread pipe, sealing nut；Plug assembly includes expansion rod, compression ring, elastomer, connector；
Expansive working bar include vertical shaft, shaft lower end edge shaft axis dug polygon hole；Expansive working bar
Can be from smooth interspersed movement in operation tube be fastened, tightening operation cylinder includes columnar stack shell, and one end of stack shell is equipped with internal screw thread,
The other end is equipped with sealing element；
Double thread pipe is that both ends are provided with externally threaded cylindrical structure, and double thread pipe sleeve is located at outside tightening operation cylinder,
Sealing nut is set to double thread pipe upper end, and the lower end of sealing nut is equipped with internal screw thread can screw and be fixed on the upper of double thread pipe
End；The upper end of sealing nut is equipped with through-hole, and the aperture of through-hole is mutually adapted with tightening operation cylinder diameter；In sealing nut and double
Seal washer is provided between screwed pipe；
Expansion rod includes the platform on top, and the lower end of platform is provided with threaded rod, and the end of threaded rod is multi-panel prism, more
The shape of face prism and polygon hole are adapted can be inserted into connection；
Connector is set on threaded rod, and connector is the interior tubular structure for being externally provided with screw thread, and the upper end is equipped with obstruction portion,
Its internal screw thread matches with the screw thread on threaded rod, and external screw thread and the internal screw thread of tightening operation cylinder lower end match；Obstruction portion
Size be greater than tightening operation cylinder outer diameter, be unlikely to so that connector lower end can be made to be tightened in tightening operation cylinder lower end
Wheel enters wherein；
It is arranged with multipair compression ring on threaded rod, is provided with elastomer between each pair of compression ring；Pass through platform and compression
Relative motion between ring can make elastomer deform thicker, and then block inner wall of the pipe, and plug assembly is made to be fixed on pipe
In road.
Further improvement to aforementioned split type replacing valve tool further includes that elastomer is columnar structured, compression ring
For pie structure, it is arranged fluted on the opposite face of each pair of compression ring, the both ends of elastomer are provided with cylinder boss, groove and circle
Column boss is mutually matched.
Further improvement to aforementioned split type replacing valve tool further includes, including the different occlusion group of multiple sizes
The diameter of part, compression ring and elastomer in each plug assembly is respectively less than corresponding pipeline internal diameter；
It is corresponding with the plug assembly of variant size, operating assembly also include multiple outer diameters it is different and respectively with difference
The double thread pipe and sealing nut that the caliber of valve matches.
Further improvement to aforementioned split type replacing valve tool further include further include auxiliary nut, auxiliary nut
One end is connect by screw thread with double thread pipe, and the other end is equipped with the screw thread being adapted with valve pipe；In auxiliary nut and double
Screwed pipe contact surface is provided with sealing ring.
Further improvement to aforementioned split type replacing valve tool further includes tightening operation cylinder stack shell and expansive working bar
Spacing between outer wall be (0.05,0.6] mm, and between the two away from being no more than the 1/20 of expansive working shank diameter.
Further improvement to aforementioned split type replacing valve tool further includes the length L of tightening operation cylinder0, expansion behaviour
Make the length L of bar2, connector lower thread length L4, piston component flexible deformation segment length L5Meet: L0< L2+L4+k；Its
Middle k be can operating distance, refer to the minimum range and k=S+L when plug assembly is moved along valve duct rear end pipeline5, wherein S
For front and back end duct total length after valve connection.
Further improvement to aforementioned split type replacing valve tool further includes the upper end of the shaft of the expansive working bar
For T-shaped structure or folding zigzag configuration,
The tightening operation cylinder and sealing element are structure as a whole, and there are two threaded hole, threaded holes for opposite setting on sealing element
It is inside provided with quarter butt, quarter butt is equipped with screw thread to screw in threaded hole.
Further improvement to aforementioned split type replacing valve tool further includes that the expansive working bar is T-shaped structure, institute
It states and is connected through a screw thread between fastening operating rod and sealing element, two quarter butts are welded on sealing element.
Further improvement to aforementioned split type replacing valve tool further includes that the compression ring is magnetic compression ring.
The beneficial effect is that:
1, structure is simple, and replacing valve speed is fast.
2, split type structure, back-end operations structure will not detachably interfere valve to dismount, and reduce operation content, front end blocking
Component is unaffected.
3, can multiple plug assemblies match, improve sealing effect, can be used for the closure of different pressures pipeline, can
Enough further apply the pipe of all kinds of different pressure levels such as various pipes valve, such as natural gas, water route and seal request
In line structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of split type replacing valve tool；
Fig. 2 is the structural schematic diagram of operating assembly in split type replacing valve tool (containing section)；
Fig. 3 is the structural schematic diagram of plug assembly in split type replacing valve tool；
Fig. 4 is the schematic diagram of internal structure of plug assembly in split type replacing valve tool；
Fig. 5 is the first structural schematic diagram of auxiliary nut；
Fig. 6 is second of structural schematic diagram of auxiliary nut；
Fig. 7 is the assembly structure figure of split type replacing valve tool；
Fig. 8 is the embodiment schematic diagram of split type replacing valve tool.
Specific embodiment
It elaborates below in conjunction with specific embodiment to utility model.
As shown in Figure 1 and Figure 2, a kind of split type replacing valve tool, including operating assembly 1, plug assembly 2；Operating assembly
Including expansive working cylinder 11, tightening operation cylinder 12, double thread pipe 13, sealing nut 14, plug assembly 2 includes expansion rod 21, pressure
Contracting ring 22, elastomer 23, connector 24.
In the present embodiment, plug assembly 2, which is retained in inside pipeline, carries out closing isolation, in order to replace to valve
Maintenance, operating assembly 1 is used to plug assembly 2 being delivered to corresponding position, while guaranteeing the sealing in installation process between structure
Property, two parts are mutually indepedent, are only connected with each other when plug assembly mounts and dismounts, and in turn, plug assembly is in valve
It is independent in replacement process to rest on inside pipeline, completely cut off the presence of external disturbance completely, has not needed to operate on it, i.e.,
Make temporarily to be changed without valve, also need not worry about probably due to external force grazing leads to problems such as to shake gas leakage, in operating process not
It needs to carry out it additional fixed operation, enormously simplifies the action of replacing valve, improve sealing performance.
Wherein expansive working bar 11 has dug polygon hole including the lower end edge shaft axis of vertical shaft 11a, shaft 11a
11b；Expansive working bar 11 can be from smooth interspersed movement in operation tube 12 be fastened, and tightening operation cylinder 12 includes columnar stack shell
One end of 12a, stack shell 12a are equipped with internal screw thread 12b can connect with plug assembly 2, and the other end is equipped with external screw thread and sealing element
15, so as to keep sealing between tightening operation cylinder 12 and expansive working bar 11；Double thread pipe 13 is that both ends are provided with external screw thread
Cylindrical structure, double thread pipe 13 is set in outside tightening operation cylinder 12, and sealing nut 14 is set to 13 upper end of double thread pipe, sealing
The lower end of nut 14 is equipped with internal screw thread 14a can screw and be fixed on the upper end of double thread pipe 13, and the upper end of sealing nut 14 is set
There is through-hole 14b, and the aperture of through-hole 14b is mutually adapted with 12 diameter of tightening operation cylinder；In sealing nut 14 and double thread pipe 13
Between be provided with seal washer 3.
In the present embodiment, expansive working bar is Z-shaped crank shape structure, in order to carry out rotation process to it, is saved
Strength may be designed in the structures such as T shape；Particularly, actual mechanical process, the limit in space or pipeline as locating for valve
System, the available operating space of expansive working bar is insufficient, may interfere with its use, the crank of expansive working bar can be arranged thus
For folding structure, i.e., folding structure will be set in position of the expansive working bar at axial ray, such as is connected using bolt
Mode, and when needed using angle spring control crank angle.
For convenient for rotational fastener operation tube, wherein sealing element and tightening operation cylinder be can be set to integral type or seperated
The structure of formula, the mode that split type structure is preferably threadedly coupled.Likewise, in the actual operation process for convenient for rotating seal
And operation tightening operation cylinder, quarter butt can be welded on sealing element in order to operate on it；Particularly, it is operated to reduce
Space compression tool volume uses convenient for storage, can set quarter butt to dismountable structure, i.e., spiral shell is arranged on sealing element
Pit 15a, and screw thread is set on quarter butt, using threaded connection, in general, being preferably removable using the structure cooperation of integral type
The quarter butt unloaded or the non-removable screw rod of split type structure cooperation welding, can guarantee after tool ejector zero in this way
Number of packages amount is few, and equipment volume is small.
As shown in Figure 3, Figure 4, expansion rod 21 includes the platform 21a on top, and the lower end of platform 21a is provided with threaded rod 21b,
The end of threaded rod 21b is multi-panel prism 21c, and the shape of multi-panel prism 21c and polygon hole 11b are adapted can be inserted into connection；
Easy to know, the size of platform 21a should be less than the internal diameter of pipeline；
Connector 24 is set on threaded rod 21b, and connector 24 is the interior tubular structure for being externally provided with screw thread, and the upper end is equipped with
Obstruction portion 24a, internal screw thread match with the screw thread on threaded rod 21b, the interior spiral shell of external screw thread and 12 lower end of tightening operation cylinder
Line 12b matches；The size in obstruction portion is greater than the outer diameter of tightening operation cylinder 12,24 lower end of connector can be made to be tightened tight
Though 12 lower end of operation tube be unlikely to be completely screwed into wherein；
It is arranged with multipair compression ring 22 on threaded rod 21b, is provided with elastomer 23 between each pair of compression ring 22；Pass through platform
Relative motion between 21a and compression ring 22, can make elastomer 23 deform thicker, and then block inner wall of the pipe, make
Plug assembly 2 is fixed in the duct；
Further, to improve wall surface leakproofness, the friction between plug assembly 2 and inner wall of the pipe is improved, to avoid going out
The accident that plug assembly is ejected when existing pressure jump occurs, and makes compression using with magnetic material in the present embodiment
Ring, magnetic compression ring can generate attraction with inner wall of the pipe, prevent plug assembly to be squeezed out pipeline, be embodied
In the process, multiple plug assemblies can also be installed by setting to improve its safety.
In the present embodiment, elastomer 23 be it is columnar structured, for guarantee compression ring 22 and elastomer 23 relative position not
Become, can uniformly block inner wall of the pipe, compression ring 22 is set as pie structure, and on the opposite face of each pair of compression ring 23
Fluted 22b is set, and the both ends of elastomer 23 are provided with cylinder boss 23b, groove 22b and cylinder boss 23b and are mutually matched, In
In distortional elastomer compression process, so that compression ring 22 and elastomer 23 keep coaxially, guaranteeing compression ring 22 and 23 edge of elastomer
The axial-movement of threaded rod 21b；Based on above structure, can enough guarantee elastomer 23 in compression process its axis always with spiral shell
Rasp bar 21b axis is parallel, avoids to two sides skew, so that elastomer stress and deformation are uniformly, improves sealing effect.
Based on actual needs, all kinds of various sizes of valves are contained in gas ductwork, with can be with the pipeline of different tube diameters
Connection includes the different plug assembly 2 of multiple sizes in the utility model, respectively to meet the needs of different sized valves replacement
The diameter of compression ring 22 and elastomer 23 in plug assembly 2 is slightly less than corresponding pipeline internal diameter；With blocking up for variant size
Plug assembly 2 is corresponding, and operating assembly 1 also includes double spiral shells that multiple outer diameters are different and match respectively from the caliber of different valves
Line pipe 13 and sealing nut 14；
Since in actual mechanical process, many valves are set to inside the underground piping of the following certain altitude of ground level, and
Frequent ponding only has valve mechanism exposing in pipeline, for convenient for operation, double thread pipe 13 is configured to multiple and different length, with can be into
Row remote-controlled operation.
Its another scheme is to add auxiliary nut 6, and one end of auxiliary nut 6 is connected by screw thread 6a and double thread pipe 13
It connecing, the other end is equipped with the screw thread 6b being adapted with valve pipe, in specific implementation process, including Fig. 5 and two kinds of Fig. 6 specific knots
Structure type is conducive to raising tool service efficiency using auxiliary nut 6, avoids the plug repeatedly during dismounting double thread pipe 13
Installation operation can also carry quality and the smaller auxiliary nut 6 of volume without carrying during carrying out Maintenance and Repair
More double thread pipes 13 particularly to improve leakproofness, are provided with sealing ring 6c in auxiliary nut 6 and double thread pipe contact surface.
For the structures such as fluted 13a or anti-skid chequer are arranged convenient for the middle part of operation, double thread pipe；
Easy to know, barrel diameter is greater than expansive working shank diameter, further, to prevent excessive surface friction while guaranteeing
Expansive working bar is unlikely to excessively to rock inclination in use, between tightening operation cylinder stack shell and expansive working bar outer wall
Spacing be (0.05,0.6] mm, and between the two away from be no more than expansive working shank diameter 1/20；
As shown in fig. 7, guaranteeing that plug assembly can be fully inserted into valve rear end in order to meet the actual needs
In pipeline, the length L of tightening operation cylinder0, double thread pipe length L1, expansive working bar length L2, 24 lower thread of connector
Length L4, piston component flexible deformation segment length L5Meet: L0< L2+L4+ k, wherein k be can operating distance, refer to plug assembly
Minimum range and k=S+L when along valve duct rear end, pipeline is moved5, wherein S is front and back end duct overall length after valve connection
Degree.
As shown in figure 8, this specific steps of split type replacing valve tool when in use includes:
1, suitable double thread pipe 13 and plug assembly 2 are selected
2, operating assembly 1 and plug assembly 2 are assembled, plug assembly 2 is installed using the external screw thread of 24 lower end of connector
The top of tightening operation cylinder 12, is tightened in operating assembly 1；
3, tightening operation cylinder 12 is held, double thread cylinder 13 and sealing nut 14 are pulled out, until plug assembly 2 is complete
Into inside double thread pipe 13；
4,13 outer end of double thread pipe is tightened on the nozzle of valve, tightens sealing nut 14, confirmed good seal, grasping
Make to connect electrostatic conductor between component 1 and pipeline B, opens valve, and reaffirm that leakproofness is good；
5, tightening operation cylinder 12 is pushed, plug assembly 2 is pushed into pipeline B place inside, pushes expansive working bar 11
Its top and the multi-panel prism 21c of 21 lower end of expansion rod is set to be connected, rotary expansion operating stick 11 makes expansion rod 21 to valve
Direction is mobile to squeeze elastomer 23, blocking pipe B after keeping its thicker；
6, rotational fastener operation tube 12 separates it with plug assembly, pulls out expansive working bar 11 and tightening operation cylinder 12
Valve duct is disengaged it from, but not pull out double thread pipe 13, closes valve；
7, according to actual needs, when needing multiple plug assembly 2, operating assembly 1 is removed from valve, and according to
Step 1-5 assembly installation plug assembly 2, until all plug assemblies install；When plug assembly 2 is enough, successively
Operating assembly 1 and valve are removed, new valve is installed, operating assembly 1 is installed on new valve and loosens plug assembly one by one, and
It is pulled in inside double thread pipe 13 using tightening operation cylinder 12, closes valve, remove plug assembly 2.
Finally it should be noted that above embodiments are only to illustrate the technical solution of utility model, rather than to practical new
The limitation of type protection scope, although being explained in detail referring to preferred embodiment to utility model, the ordinary skill of this field
Personnel, which should be appreciated that, can be modified or replaced equivalently the technical solution of utility model, without departing from utility model skill
The spirit and scope of art scheme.
Claims (9)
1. a kind of split type replacing valve tool, which is characterized in that including operating assembly, plug assembly；Operating assembly includes swollen
Swollen operation tube, tightening operation cylinder, double thread pipe, sealing nut；Plug assembly includes expansion rod, compression ring, elastomer, connection
Part；
Expansive working bar include vertical shaft, shaft lower end edge shaft axis dug polygon hole；
Expansive working bar can be from smooth interspersed movement in operation tube be fastened, and tightening operation cylinder includes columnar stack shell, stack shell
One end is equipped with internal screw thread, and the other end is equipped with sealing element；
Double thread pipe is that both ends are provided with externally threaded cylindrical structure, and double thread pipe sleeve is located at outside tightening operation cylinder, sealing
Nut is set to double thread pipe upper end, and the lower end of sealing nut is equipped with internal screw thread can screw and be fixed on the upper end of double thread pipe；
The upper end of sealing nut is equipped with through-hole, and the aperture of through-hole is mutually adapted with tightening operation cylinder diameter；In sealing nut and double spiral shells
Seal washer is provided between line pipe；
Expansion rod includes the platform on top, and the lower end of platform is provided with threaded rod, and the end of threaded rod is multi-panel prism, polygonal prism
The shape of column and polygon hole are adapted can be inserted into connection；
Connector is set on threaded rod, and connector is the interior tubular structure for being externally provided with screw thread, and the upper end is equipped with obstruction portion, in
Screw thread matches with the screw thread on threaded rod, and external screw thread and the internal screw thread of tightening operation cylinder lower end match；The ruler in obstruction portion
The very little outer diameter greater than tightening operation cylinder, is unlikely to revolve completely so that connector lower end can be made to be tightened in tightening operation cylinder lower end
Enter wherein；
It is arranged with multipair compression ring on threaded rod, is provided with elastomer between each pair of compression ring.
2. a kind of split type replacing valve tool according to claim 1, which is characterized in that elastomer be it is columnar structured,
Compression ring is pie structure, is arranged fluted on the opposite face of each pair of compression ring, and the both ends of elastomer are provided with cylinder boss, recessed
Slot and cylinder boss are mutually matched.
3. a kind of split type replacing valve tool according to claim 1, which is characterized in that including different stifled of multiple sizes
The diameter of plug assembly, compression ring and elastomer in each plug assembly is respectively less than corresponding pipeline internal diameter；
It is corresponding with the plug assembly of variant size, operating assembly also include multiple outer diameters it is different and respectively from different valves
Caliber the double thread pipe and sealing nut that match.
4. a kind of split type replacing valve tool according to claim 1, which is characterized in that it further include auxiliary nut, auxiliary
One end of nut is connect by screw thread with double thread pipe, and the other end is equipped with the screw thread being adapted with valve pipe；In auxiliary spiral shell
It is female that double thread pipe contact surface is provided with sealing ring.
5. a kind of split type replacing valve tool according to claim 1, which is characterized in that tightening operation cylinder stack shell and expansion
Spacing between operating stick outer wall be (0.05,0.6] mm, and between the two away from being no more than the 1/20 of expansive working shank diameter.
6. a kind of split type replacing valve tool according to claim 1, which is characterized in that the length L of tightening operation cylinder0, it is swollen
The length L of swollen operating stick2, connector lower thread length L4, piston component flexible deformation segment length L5Meet: L0< L2+L4+
k；Wherein k be can operating distance, refer to the minimum range and k=S+L when plug assembly is moved along valve duct rear end pipeline5,
Wherein S is front and back end duct total length after valve connection.
7. a kind of split type replacing valve tool according to claim 1, which is characterized in that the shaft of the expansive working bar
Upper end be T-shaped structure or folding zigzag configuration；
The tightening operation cylinder and sealing element are structure as a whole, opposite on sealing element to set there are two threaded hole, set in threaded hole
It is equipped with quarter butt, quarter butt is equipped with screw thread to screw in threaded hole.
8. a kind of split type replacing valve tool according to claim 1, which is characterized in that the expansive working bar is T shape
Structure；It is connected through a screw thread between the fastening operating rod and sealing element, two quarter butts is welded on sealing element.
9. a kind of split type replacing valve tool according to claim 1, which is characterized in that the compression ring is magnetic compression
Ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466094.XU CN209665292U (en) | 2019-04-09 | 2019-04-09 | A kind of split type replacing valve tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466094.XU CN209665292U (en) | 2019-04-09 | 2019-04-09 | A kind of split type replacing valve tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209665292U true CN209665292U (en) | 2019-11-22 |
Family
ID=68573890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920466094.XU Expired - Fee Related CN209665292U (en) | 2019-04-09 | 2019-04-09 | A kind of split type replacing valve tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209665292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866176A (en) * | 2019-04-09 | 2019-06-11 | 武汉市天然气有限公司 | A kind of split type replacing valve tool and its application method |
-
2019
- 2019-04-09 CN CN201920466094.XU patent/CN209665292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866176A (en) * | 2019-04-09 | 2019-06-11 | 武汉市天然气有限公司 | A kind of split type replacing valve tool and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205402082U (en) | Natural gas line plugging device | |
| CN209665292U (en) | A kind of split type replacing valve tool | |
| CN109866176A (en) | A kind of split type replacing valve tool and its application method | |
| CN201650366U (en) | Bottle type compressed natural gas underground storage well | |
| CN206376757U (en) | The tubing head reducing joint of rod-pumped well pump detection and workover | |
| CN204604217U (en) | A kind of stopping transportation pressure changes the device of high compression diameter ball valve | |
| CN207486323U (en) | A kind of IN process measure and control device | |
| CN107717291A (en) | The automatic steel reinforcement cage cage bar clamping device of movable type hydraulic | |
| CN207261719U (en) | A kind of quick device with pressure for replacing valve greasing mouth | |
| CN203626663U (en) | Device for replacing SAGD steam injection wellhead gate valve under pressure | |
| CN203051916U (en) | Disc spring type single-action hydraulic actuator | |
| CN206889899U (en) | Pipe connecting structure | |
| CN201787270U (en) | Floating pipeline quick-repair joint | |
| CN104538067A (en) | Dismountable cleavage simulating part as well as installation method and cleavage simulation system of dismountable cleavage simulating part | |
| CN214604079U (en) | Split type valve replacing tool | |
| CN208582897U (en) | Anti-skidding anticreep hydraulic giant | |
| CN209828034U (en) | Redundant fire arrestor with back-blowing sweeping structure | |
| CN207813568U (en) | A kind of detachable bridge plug | |
| CN207786179U (en) | A kind of modified fast opening type filter | |
| CN203017628U (en) | Conveniently repaired fire hydrant | |
| CN101397848A (en) | Horizontal type spraying machine | |
| CN110220023A (en) | A kind of low temperature spring loaded safety valve | |
| CN218578595U (en) | Integrated form air bubble | |
| CN209483797U (en) | Pre-embedded bolt spiro rod section protective case | |
| CN219828035U (en) | Emptying standpipe structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 Termination date: 20200409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |