CN215721300U - Fire-fighting pipeline fixer for fire engineering - Google Patents
Fire-fighting pipeline fixer for fire engineering Download PDFInfo
- Publication number
- CN215721300U CN215721300U CN202121191503.3U CN202121191503U CN215721300U CN 215721300 U CN215721300 U CN 215721300U CN 202121191503 U CN202121191503 U CN 202121191503U CN 215721300 U CN215721300 U CN 215721300U
- Authority
- CN
- China
- Prior art keywords
- fire
- groups
- fire fighting
- sliding
- plate
- 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
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model provides a fire fighting pipeline fixer for fire fighting engineering. Fire-fighting pipeline fixer for fire engineering includes the bottom plate, fixture, the roof, drive assembly and installation component, all rotate on the both ends lateral wall of box body and be connected with the bull stick, the top of bottom plate is equipped with first spout, the inside sliding connection of first spout has the slider that two sets of symmetries set up, the bottom of two sets of sliders respectively with the pole wall threaded connection of two sets of bull sticks, and the top of two sets of sliders respectively fixed mounting have the staple bolt, the top fixed mounting of roof has two sets of regulation posts, drive assembly installs the inside at the box body, the installation component is installed at the top of cushion post. The fire fighting pipeline fixer for fire fighting engineering provided by the utility model has the advantages that the fire fighting pipeline can be quickly suspended and fixed, the pipeline does not need to be locked through bolts, the installation and the disassembly are convenient, and the time and the labor are saved.
Description
Technical Field
The utility model relates to the technical field of fire engineering, in particular to a fire fighting pipeline fixer for fire engineering.
Background
The fire-fighting pipeline is a pipeline material which is used for connecting fire-fighting equipment and equipment in the aspect of fire fighting, conveying water for fire fighting, gas or other media, has special requirements on the thickness and the material of the fire-fighting pipeline due to special requirements, and is sprayed with red paint for conveying fire fighting.
The fire pipeline need install on the interior roof in house when using, generally adopts simpler U-shaped frame to erect one or many fire pipelines at present to lock two sets of U type framves together through the bolt and carry out the centre gripping fixed to the fire pipeline, but all need install artifical instrument with the bolt and rotate the tightening with the instrument when installation and dismantlement like this, very little waste time like this, and the bolt of having of a specified duration can rust, thereby can consume staff's physical power more.
Therefore, there is a need to provide a new fire fighting pipeline fixer for fire fighting engineering to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the fire fighting pipeline fixer for the fire fighting engineering, which can quickly hang and fix a fire fighting pipeline, does not need to lock the pipeline through bolts, is convenient to install and disassemble, and saves time and labor.
The fire fighting pipeline fixer for fire fighting engineering provided by the utility model comprises: the clamping mechanism comprises a hoop, sliders and a rotating rod, a box body is fixedly mounted at the bottom of the bottom plate, rotating rods are rotatably connected to the side walls of the two ends of the box body respectively, threaded grooves are formed in the rod walls of the rotating rods, which are positioned outside the box body, a first sliding groove is formed in the top of the bottom plate, two sets of symmetrically-arranged sliders are slidably connected to the inside of the first sliding groove, the bottoms of the two sets of sliders are in threaded connection with the rod walls of the two sets of rotating rods respectively, the tops of the two sets of sliders are fixedly mounted with the hoop respectively, a second sliding groove is formed in the bottom of the top plate, the tops of the two sets of hoops are in sliding connection with the second sliding groove, two sets of adjusting columns are fixedly mounted at the top of the top plate, a connecting plate is fixedly mounted at the tops of the two sets of adjusting columns, and a plurality of groups of buffer columns are mounted at the top of the connecting plate, the driving component is installed in the box body, and the installation component is installed at the top of the buffer column.
Preferably, the driving assembly comprises a motor, a first bevel gear and a second bevel gear, the motor is fixedly installed at the bottom of the box body, the first bevel gear is fixedly connected with the output end of the motor, and the second bevel gear is fixedly installed at one end, located inside the box body, of the two groups of rotating rods.
Preferably, install the extrusion subassembly on the inner wall of staple bolt, the extrusion subassembly includes air cushion and inflation valve, fixed mounting has the air cushion on the inner wall of staple bolt, fixed mounting has the inflation valve on the outer wall of staple bolt, just inflation valve communicates with each other with the air cushion.
Preferably, the adjusting column comprises a sliding barrel, a sliding rod and a first bolt, the top of the sliding barrel is fixedly mounted at the bottom of the connecting plate, the bottom of the sliding rod is fixedly mounted at the top of the top plate, the top of the sliding rod is slidably connected inside the sliding barrel, and the first bolt is in threaded connection with the side wall of the sliding barrel.
Preferably, the buffering post includes connecting cylinder, connecting rod, stop collar and buffer spring, connecting rod sliding connection is in the inside of connecting cylinder, fixed mounting has the stop collar on the connecting rod is located the inside pole wall of connecting cylinder, fixedly connected with buffer spring between the top of connecting rod and the interior roof of connecting cylinder, the bottom of connecting rod and the top fixed connection of connecting plate.
Preferably, the mounting assembly includes mounting panel and second bolt, mounting panel fixed mounting is in a plurality of groups the top of connecting cylinder, the surperficial edge threaded connection of mounting panel has the second bolt.
Compared with the related art, the fire fighting pipeline fixer for the fire fighting engineering has the following beneficial effects:
the utility model provides a fire-fighting pipeline fixer for fire engineering, which is characterized in that a buffer column is arranged on the inner top of a house through an installation component, then a fire-fighting pipeline to be installed and fixed is arranged between two groups of hoops, then a driving component drives two groups of rotating rods to rotate, the two groups of rotating rods drive the two groups of hoops to move to mutually approach and abut against the side wall of the fire-fighting pipeline, then the fire-fighting pipeline can be clamped and fixed between the two groups of hoops and hung on the inner top wall of the house, workers do not need to use tool tightening bolts to fix the fire-fighting pipeline, and time and labor are saved.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a fire fighting pipeline fastener for fire fighting engineering according to the present invention;
FIG. 2 is a schematic structural view of the position-limiting structure shown in FIG. 1;
FIG. 3 is a schematic view of the internal structure of the case shown in FIG. 1;
fig. 4 is a schematic view of the internal structure of the buffer column shown in fig. 1.
Reference numbers in the figures: 1. a base plate; 11. a connecting plate; 2. a box body; 3. a clamping mechanism; 31. hooping; 32. A slider; 33. a rotating rod; 4. a drive assembly; 41. a motor; 42. a first bevel gear; 43. a second bevel gear; 5. an extrusion assembly; 51. an air cushion; 52. an inflation valve; 6. a top plate; 7. an adjustment column; 71. a slide cylinder; 72. a slide bar; 73. a bolt; 8. a buffer column; 81. a connecting cylinder; 82. a connecting rod; 83. a limiting sleeve; 84. a buffer spring; 9. mounting the component; 91. mounting a plate; 92. a second bolt; 9a, a first chute; 9b and a second chute.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, wherein fig. 1 is a schematic structural view of a preferred embodiment of a fire fighting pipeline fixer for fire fighting engineering according to the present invention; FIG. 2 is a schematic structural view of the position-limiting structure shown in FIG. 1; FIG. 3 is a schematic view of the internal structure of the case shown in FIG. 1; fig. 4 is a schematic view of the internal structure of the buffer column shown in fig. 2. The method comprises the following steps: a base plate 1;
the clamping mechanism 3 comprises a hoop 31, sliding blocks 32 and rotating rods 33, the box body 2 is fixedly installed at the bottom of the bottom plate 1, the rotating rods 33 are rotatably connected to the side walls of the two ends of the box body 2, threaded grooves are formed in the rod walls, located outside the box body 2, of the rotating rods 33, a first sliding groove 9a is formed in the top of the bottom plate 1, two groups of symmetrically-arranged sliding blocks 32 are slidably connected to the inside of the first sliding groove 9a, the bottoms of the two groups of sliding blocks 32 are respectively in threaded connection with the rod walls of the two groups of rotating rods 33, and the hoops 31 are fixedly installed at the tops of the two groups of sliding blocks 32 respectively;
the top plate 6 is provided with a second sliding groove 9b at the bottom of the top plate 6, the tops of the two groups of hoops 31 are in sliding connection with the second sliding groove 9b, the top of the top plate 6 is fixedly provided with two groups of adjusting columns 7, the tops of the two groups of adjusting columns 7 are fixedly provided with a connecting plate 11, and the top of the connecting plate 11 is provided with a plurality of groups of buffer columns 8;
the driving component 4, the driving component 4 is installed inside the box body 2;
and a mounting assembly 9, wherein the mounting assembly 9 is mounted at the top of the buffer column 8.
In the specific implementation process, as shown in fig. 1, 2 and 3, the clamping mechanism 3 comprises an anchor ear 31, a slide block 32 and a rotating rod 33, the bottom of the bottom plate 1 is fixedly provided with the box body 2, the side walls of the two ends of the box body 2 are rotatably connected with the rotating rod 33, and the rotating rod 33 is provided with a thread groove on the rod wall positioned outside the box body 2, the top of the bottom plate 1 is provided with a first sliding chute 9a, the inside of the first sliding chute 9a is connected with two groups of symmetrically arranged sliding blocks 32 in a sliding way, the bottoms of the two groups of sliding blocks 32 are respectively connected with the rod wall threads of the two groups of rotating rods 33, the tops of the two groups of sliding blocks 32 are respectively and fixedly provided with an anchor ear 31, the bottom of the top plate 6 is provided with a second sliding chute 9b, the tops of the two groups of anchor ears 31 are both in sliding connection with the second sliding chute 9b, the top of the top plate 6 is fixedly provided with two groups of adjusting columns 7, and the top of two sets of regulation posts 7 is fixedly provided with a connecting plate 11, and the top of the connecting plate 11 is provided with a plurality of sets of buffer posts 8.
The driving assembly 4 comprises a motor 41, a first bevel gear 42 and a second bevel gear 43, the motor 41 is fixedly installed at the bottom of the box body 2, the first bevel gear 42 is fixedly connected with the output end of the motor 41, and the second bevel gear 43 is fixedly installed at one end of the two groups of rotating rods 33 inside the box body 2.
The mounting assembly 9 comprises a mounting plate 91 and second bolts 92, the mounting plate 91 is fixedly mounted at the tops of the groups of connecting cylinders 81, and the second bolts 92 are connected at the surface edge of the mounting plate 91 in a threaded manner.
It should be noted that: the inner top wall of a house is punched, then the mounting plate 91 is abutted against the inner top wall of the house, then the second bolt 92 is screwed into the hole to fix the mounting plate 91 on the wall, then the fire fighting pipeline to be installed is arranged between the two groups of hoops 31, at the moment, the starting motor 41 works to drive the first bevel gear 42 fixedly connected with the output end of the starting motor to rotate, the first bevel gear 42 drives the two groups of second bevel gears 43 meshed with the two groups of second bevel gears 43 to reversely rotate, the two groups of second bevel gears 43 drive the two groups of rotating rods 33 to rotate, because the sliding block 32 is not only in threaded connection with the rotating rods 33, but also in sliding connection with the first sliding groove 9a on the bottom plate 1, the rotating rods 33 drive the sliding block 32 to move, thereby the two groups of hoops 31 can be driven to move to mutually approach to abut against the side wall of the fire fighting pipeline, and further the fire fighting pipeline can be clamped and fixed, so that the fire fighting pipeline can be clamped and hung below the inner top wall of the house, and control first bevel gear 42 antiport again through motor 41 to can drive two sets of staple bolts 31 and remove each other and keep away from and loosen the fire-fighting pipeline, so be convenient for install and dismantle the fire-fighting pipeline, need not use the instrument and save time and manpower.
Referring to fig. 2, the inner wall of the hoop 31 is provided with the extrusion assembly 5, the extrusion assembly 5 comprises an air cushion 51 and an inflation valve 52, the inner wall of the hoop 31 is fixedly provided with the air cushion 51, the outer wall of the hoop 31 is fixedly provided with the inflation valve 52, and the inflation valve 52 is communicated with the air cushion 51.
It should be noted that: after two sets of staple bolts 31 offset and live the fire pipeline centre gripping, can also be through the inflation valve 52 to inside the inflating of air cushion 51, make air cushion 51 swell and offset with the lateral wall of fire pipeline to can prevent to appear the gap between fire pipeline and the staple bolt 31, further improve the stability that fire pipeline was held.
Referring to fig. 2, the adjusting column 7 comprises a sliding cylinder 71, a sliding rod 72 and a first bolt 73, wherein the top of the sliding cylinder 71 is fixedly installed at the bottom of the connecting plate 11, the bottom of the sliding rod 72 is fixedly installed at the top of the top plate 6, the top of the sliding rod 72 is slidably connected inside the sliding cylinder 71, and the first bolt 73 is screwed on the side wall of the sliding cylinder 71.
It should be noted that: the sliding rod 72 can be pulled out of the sliding barrel 71 by loosening the first bolt 73, the sliding barrel 71 and the sliding rod 72 are locked by rotating the first bolt 73 after the height of the hoop 31 is adjusted, and therefore the heights of the two groups of hoops 31 can be adjusted and changed, and fire fighting pipelines with different heights can be clamped and fixed conveniently.
Referring to fig. 4, the cushion column 8 includes a connecting cylinder 81, a connecting rod 82, a limiting sleeve 83 and a cushion spring 84, the connecting rod 82 is slidably connected inside the connecting cylinder 81, the limiting sleeve 83 is fixedly mounted on a rod wall of the connecting rod 82 inside the connecting cylinder 81, the cushion spring 84 is fixedly connected between the top of the connecting rod 82 and the inner top wall of the connecting cylinder 81, and the bottom of the connecting rod 82 is fixedly connected with the top of the connecting plate 11.
It should be noted that: can hang connecting rod 82 in connecting cylinder 81 through stop collar 83, when the inside rivers that have of fire-fighting pipeline were crossed and are taken place vibrations, can drive connecting rod 82 and rock from top to bottom, buffer spring 84 can play the absorbing effect of buffering to connecting rod 82 this moment to can protect the fire-fighting pipeline.
The working principle of the fire fighting pipeline fixer for the fire fighting engineering provided by the utility model is as follows: the inner top wall of a house is punched, then the mounting plate 91 is abutted against the inner top wall of the house, then the second bolt 92 is screwed into the hole to fix the mounting plate 91 on the wall, then the fire fighting pipeline to be installed is arranged between the two groups of hoops 31, at the moment, the starting motor 41 works to drive the first bevel gear 42 fixedly connected with the output end of the starting motor to rotate, the first bevel gear 42 drives the two groups of second bevel gears 43 meshed with the two groups of second bevel gears 43 to reversely rotate, the two groups of second bevel gears 43 drive the two groups of rotating rods 33 to rotate, because the sliding block 32 is not only in threaded connection with the rotating rods 33, but also in sliding connection with the first sliding groove 9a on the bottom plate 1, the rotating rods 33 drive the sliding block 32 to move, thereby the two groups of hoops 31 can be driven to move to mutually approach to abut against the side wall of the fire fighting pipeline, and further the fire fighting pipeline can be clamped and fixed, so that the fire fighting pipeline can be clamped and hung below the inner top wall of the house, after the two groups of hoops 31 abut against each other to clamp the fire fighting pipeline, the air cushion 51 can be inflated through the inflation valve 52, so that the air cushion 51 is bulged to abut against the side wall of the fire fighting pipeline, thereby preventing a gap from occurring between the fire fighting pipeline and the hoops 31, further improving the stability of the fire fighting pipeline being clamped, the motor 41 controls the first bevel gear 42 to rotate reversely again, thereby driving the two groups of hoops 31 to move away from each other to loosen the fire fighting pipeline, so that the fire fighting pipeline can be conveniently installed and disassembled without using tools, saving time and manpower, loosening the first bolt 73, drawing the slide rod 72 out of the slide cylinder 71, locking the slide cylinder 71 and the slide rod 72 by rotating the first bolt 73 after the height of the hoops 31 is adjusted, further adjusting and changing the heights of the two groups of hoops 31, and facilitating clamping and fixing the fire fighting pipelines with different heights, and can hang connecting rod 82 in connecting cylinder 81 through stop collar 83, when the inside rivers of fire-fighting pipeline were crossed and took place vibrations, can drive connecting rod 82 and rock from top to bottom, buffer spring 84 can play the absorbing effect of buffering to connecting rod 82 this moment to can protect the fire-fighting pipeline, thereby can be quick hang fixedly to the fire-fighting pipeline, need not lock the pipeline through the bolt, be convenient for install and dismantle save time and manpower.
The circuits and controls involved in the present invention are prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a fire-fighting pipeline fixer for fire engineering which characterized in that includes:
a base plate (1);
the clamping mechanism (3) comprises a hoop (31), sliders (32) and rotating rods (33), a box body (2) is fixedly mounted at the bottom of the bottom plate (1), the rotating rods (33) are rotatably connected to the side walls of the two ends of the box body (2), threaded grooves are formed in the rod walls of the rotating rods (33) located outside the box body (2), a first sliding groove (9a) is formed in the top of the bottom plate (1), two groups of symmetrically arranged sliders (32) are slidably connected to the inside of the first sliding groove (9a), the bottoms of the two groups of sliders (32) are respectively in threaded connection with the rod walls of the two groups of rotating rods (33), and the hoops (31) are fixedly mounted at the tops of the two groups of sliders (32);
the bottom of the top plate (6) is provided with a second sliding groove (9b), the tops of the two groups of hoops (31) are connected with the second sliding groove (9b) in a sliding mode, the top of the top plate (6) is fixedly provided with two groups of adjusting columns (7), the tops of the two groups of adjusting columns (7) are fixedly provided with a connecting plate (11), and the tops of the connecting plate (11) are provided with a plurality of groups of buffer columns (8);
the driving assembly (4), the said driving assembly (4) is installed inside box (2);
a mounting component (9), wherein the mounting component (9) is mounted at the top of the buffer column (8).
2. The fire fighting pipeline fixer for fire fighting engineering according to claim 1, characterized in that the driving component (4) comprises a motor (41), a first bevel gear (42) and a second bevel gear (43), the motor (41) is fixedly installed at the bottom of the box body (2), the first bevel gear (42) is fixedly connected with the output end of the motor (41), and the second bevel gear (43) is fixedly installed at one end of the two sets of rotating rods (33) inside the box body (2).
3. The fire fighting pipeline fixer for fire fighting engineering according to claim 1, characterized in that the inner wall of the hoop (31) is provided with the extrusion assembly (5), the extrusion assembly (5) comprises an air cushion (51) and an inflation valve (52), the inner wall of the hoop (31) is fixedly provided with the air cushion (51), the outer wall of the hoop (31) is fixedly provided with the inflation valve (52), and the inflation valve (52) is communicated with the air cushion (51).
4. The fire fighting pipeline fixer according to claim 1, wherein the adjusting column (7) comprises a sliding cylinder (71), a sliding rod (72) and a first bolt (73), the top of the sliding cylinder (71) is fixedly installed at the bottom of the connecting plate (11), the bottom of the sliding rod (72) is fixedly installed at the top of the top plate (6), the top of the sliding rod (72) is slidably connected inside the sliding cylinder (71), and the first bolt (73) is screwed on the side wall of the sliding cylinder (71).
5. The fire fighting pipeline fixer for fire fighting engineering according to claim 1, characterized in that the buffering column (8) comprises a connecting cylinder (81), a connecting rod (82), a limiting sleeve (83) and a buffering spring (84), the connecting rod (82) is slidably connected inside the connecting cylinder (81), the limiting sleeve (83) is fixedly installed on the rod wall of the connecting rod (82) inside the connecting cylinder (81), the buffering spring (84) is fixedly connected between the top of the connecting rod (82) and the inner top wall of the connecting cylinder (81), and the bottom of the connecting rod (82) is fixedly connected with the top of the connecting plate (11).
6. The fire fighting pipe holder according to claim 5, wherein the mounting assembly (9) includes a mounting plate (91) and second bolts (92), the mounting plate (91) is fixedly mounted on the tops of the groups of the connecting cylinders (81), and the second bolts (92) are screwed to the surface edges of the mounting plate (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121191503.3U CN215721300U (en) | 2021-05-31 | 2021-05-31 | Fire-fighting pipeline fixer for fire engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121191503.3U CN215721300U (en) | 2021-05-31 | 2021-05-31 | Fire-fighting pipeline fixer for fire engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215721300U true CN215721300U (en) | 2022-02-01 |
Family
ID=80033451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121191503.3U Expired - Fee Related CN215721300U (en) | 2021-05-31 | 2021-05-31 | Fire-fighting pipeline fixer for fire engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215721300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717633A (en) * | 2023-08-10 | 2023-09-08 | 中安合(山东)安全技术服务有限公司 | Fire control pipeline shock attenuation buffer structure of high-rise building |
-
2021
- 2021-05-31 CN CN202121191503.3U patent/CN215721300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717633A (en) * | 2023-08-10 | 2023-09-08 | 中安合(山东)安全技术服务有限公司 | Fire control pipeline shock attenuation buffer structure of high-rise building |
| CN116717633B (en) * | 2023-08-10 | 2023-11-24 | 中安合(山东)安全技术服务有限公司 | Fire control pipeline shock attenuation buffer structure of high-rise building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215721300U (en) | Fire-fighting pipeline fixer for fire engineering | |
| CN104652236A (en) | Combined type channel steel support template rod system and construction method thereof | |
| CN110026947A (en) | A kind of tool and its application method of angle steel flange air hose fastening bolt | |
| CN108301616B (en) | Wall column formwork system | |
| CN111890279B (en) | Power plant guide shoe gap adjusting tool and using method thereof | |
| CN209556144U (en) | A kind of new steel structure built-in fitting | |
| CN206785799U (en) | Module connection structure and LED display | |
| CN113700049B (en) | Anti fixing device that floats of tunnel foundation ditch bottom plate | |
| CN211777273U (en) | Special drilling rod extracting tool of RJP, MJS horizontal construction | |
| CN209308652U (en) | Long hole orients km drilling machine reaming bit stripping attachment | |
| CN111021713B (en) | Concrete embedded bolt mechanism and use method thereof | |
| CN211229548U (en) | Quick form removal tool for aluminum template | |
| CN220828027U (en) | Wall-penetrating wall connecting piece | |
| CN217924854U (en) | Self-adaptation concrete column template reinforcing apparatus | |
| CN112681733A (en) | Adjustable supporting accessory for tool-free beam template adapting to different beam specifications and construction method | |
| CN220813695U (en) | Bridge pier protection device for highway bridge convenient to installation | |
| KR100446023B1 (en) | Clamping apparatus of form for concrete | |
| CN211058322U (en) | Connecting cone for installing screw rods on outer side of template | |
| CN219788235U (en) | Special tool for rapidly disassembling filling muffler | |
| CN215105307U (en) | Clamp of vibrating hammer of pile driver | |
| CN219365417U (en) | Device for reserving middle-sized steel penetration holes of building shear wall | |
| CN219768112U (en) | Impeller dismounting device | |
| CN220117828U (en) | Large-scale steel structure supporting device | |
| CN211647260U (en) | Can dismantle fastening type even wall spare | |
| CN219261750U (en) | Elastic template for construction of reserved holes of wellhead step |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |