CN114374178B - Threading protection device - Google Patents
Threading protection device Download PDFInfo
- Publication number
- CN114374178B CN114374178B CN202111514788.4A CN202111514788A CN114374178B CN 114374178 B CN114374178 B CN 114374178B CN 202111514788 A CN202111514788 A CN 202111514788A CN 114374178 B CN114374178 B CN 114374178B
- Authority
- CN
- China
- Prior art keywords
- threading
- hole
- pipe
- threading pipe
- protection device
- 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
- 238000003825 pressing Methods 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000011148 porous material Substances 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002360 explosive Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0418—Covers or lids; Their fastenings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The threading protection device is used for connecting and communicating a first threading pipe and a second threading pipe, and comprises a connecting cavity and a pressing plate, wherein a first threading hole, a second threading hole and a threading groove communicated with the first threading hole and the second threading hole are formed in one side surface of the connecting cavity, and the first threading pipe and the second threading pipe can be correspondingly inserted into the first threading hole and the second threading hole; the clamp plate has seted up first semicircle orifice and second semicircle orifice on, and the clamp plate can be fixed on connecting the cavity to make the pore wall of first semicircle orifice and first threading pipe support and press sealedly, the pore wall of second semicircle orifice supports with second threading pipe and presses sealedly. The wire threading protection device can be assembled and sealed with the first threading pipe and the second threading pipe on line to meet the requirement of wire sealing, can realize hard sealing of the first threading pipe and the second threading pipe, meets the design requirement of additionally installing sealing between the first threading pipe and the second threading pipe, and further has the effect of prolonging service life.
Description
Technical Field
The invention belongs to the technical field related to explosion-proof threading pipes, and particularly relates to a threading protection device.
Background
The explosion-proof threading pipe is generally applied to dangerous environments such as inflammable and explosive environments (such as gas environments), and particularly sleeved on the electric wire, and seals the electric wire so as to prevent the electric wire from being directly exposed to the dangerous environments of inflammable and explosive environments.
It will be appreciated that it is generally necessary to turn the wire 90 ° depending on the field installation requirements of the wire, and for this purpose it is also necessary to have a 90 ° turn joint for the explosion proof wire tube fitted over the wire, the two ends of the turn joint being respectively threadedly mounted on two adjacent explosion proof wire tubes. However, as the service time is prolonged, the turning joint is easy to break, so that the electric wires in the turning joint are exposed, the design requirement is not met, and certain potential safety hazards exist. For the problems, the conventional method adopted at present is to wrap the exposed wire with flexible substances such as fire clay and the like, then wrap the wire with plastic bags, the flexible sealing can only be realized, the design requirement can not be met, in addition, the sealing has short service life, and the sealed part of the wrapping is easy to be corroded by coal gas in the environment, so that the use requirement can not be met.
Disclosure of Invention
Based on this, it is necessary to provide a threading protection device aiming at the technical problems existing in the prior art.
The threading protection device is used for connecting and communicating a first threading pipe and a second threading pipe, a preset angle is formed between the first threading pipe and the second threading pipe, and wires are connected in the first threading pipe and the second threading pipe in a threading way;
the wire passing groove is arranged at a position between the first threading hole and the second threading hole, and the first threading pipe and the second threading pipe can be correspondingly inserted into the first threading hole and the second threading hole; the clamp plate is last set up in match in first semicircle orifice of first threading pipe, and match in the second semicircle orifice of second threading pipe, the clamp plate can be fixed on the connection cavity, so that the pore wall of first semicircle orifice with first threading pipe supports the pressure seal, the pore wall of second semicircle orifice with second threading pipe supports the pressure seal.
In one embodiment, the pressing plate is provided with a first sealing pad on the hole wall of the first semicircle hole, a second sealing pad is provided on the hole wall of the second semicircle hole, and when the pressing plate is installed on the connecting cavity, the pressing plate can be extruded with the first threading pipe to deform the first sealing pad and extruded with the second threading pipe to deform the second sealing pad so as to assemble and seal the pressing plate with the first threading pipe and the second threading pipe.
In one embodiment, the connecting cavity is provided with a threaded hole, and the pressing plate is provided with a connecting hole matched with the threaded hole; the threading protection device further comprises a bolt, and the bolt penetrates through the connecting hole and is in threaded connection with the threaded hole, so that the pressing plate is limited and fixed on the connecting cavity.
In one embodiment, the number of the threaded holes is two, and the two threaded holes are respectively arranged at two sides of the wire passing groove.
In one embodiment, the center of the first threading hole and the center of the second threading hole are arranged on a straight line where the wire passing groove is located.
In one embodiment, the connecting cavity is provided as hollow square steel.
In one embodiment, the pressing plate is provided as an iron plate.
In one embodiment, the width of the pressure plate is equal to the width of the side surface of the connecting cavity, on which the pressure plate is assembled.
In one embodiment, the circular line of the first threading hole is perpendicular to the circular line of the second threading hole.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the threading protection device, through reasonable structural arrangement, the threading protection device can be assembled and sealed with the first threading pipe and the second threading pipe on line so as to meet the requirement of wire sealing, and the threading protection device can realize hard sealing of the first threading pipe and the second threading pipe and meet the design requirement of additionally installing sealing between the first threading pipe and the second threading pipe, so that the threading protection device has the effect of prolonging the service life.
Drawings
Fig. 1 is a schematic structural diagram of a threading protection device according to an embodiment of the present application during operation.
Fig. 2 is a schematic structural diagram of the connection cavity in the present application.
Fig. 3 is a schematic structural view of the platen in the present application.
10, connecting the cavity; 11. a first threading hole; 12. a second threading hole; 13. wire passing grooves; 14. a threaded hole; 20. a pressing plate; 21. a first semicircle orifice; 22. a second semicircular hole; 23. a connection hole; 101. a first threading tube; 102. and a second threading tube.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 3, the threading protection device of the present invention is used for connecting and communicating a first threading pipe 101 and a second threading pipe 102, a predetermined angle is formed between the first threading pipe 101 and the second threading pipe 102, and wires are connected in the first threading pipe 101 and the second threading pipe 102 in a threading manner.
The threading protection device provided by an embodiment of the invention comprises a connecting cavity 10 and a pressing plate 20.
In this embodiment, a first threading hole 11 matched with the first threading tube 101, a second threading hole 12 matched with the second threading tube 102, and a wire passing groove 13 for communicating the first threading hole 11 and the second threading hole 12 are formed on one side surface of the connecting cavity 10.
The wire passing groove 13 of the present embodiment is disposed at a position between the first wire passing hole 11 and the second wire passing hole 12, and the first wire passing pipe 101 and the second wire passing pipe 102 can be correspondingly inserted into the first wire passing hole 11 and the second wire passing hole 12, so as to assemble the connection cavity 10 onto the first wire passing pipe 101 and the second wire passing pipe 102, and in this process, the wires passing through the first wire passing pipe 101 and the second wire passing pipe 102 can enter the connection cavity 10 through the wire passing groove 13, so as to satisfy the use requirement of assembling the connection cavity 10 into the first wire passing pipe 101 and the second wire passing pipe 102.
Further, the center of the first threading hole 11 and the center of the second threading hole 12 are disposed on the line where the wire passing groove 13 is located, so that the connecting cavity 10 can be clamped into the first threading pipe 101 and the second threading pipe 102.
In this embodiment, the pressing plate 20 of this embodiment is provided with a first semicircle hole 21 matching the first threading tube 101 and a second semicircle hole 22 matching the second threading tube 102, and the pressing plate 20 can be fixed on the connecting cavity 10, so that the hole wall of the first semicircle hole 21 is pressed and sealed with the first threading tube 101, and the hole wall of the second semicircle hole 22 is pressed and sealed with the second threading tube 102. That is, the pressing plate 20 of the present embodiment is mounted on the connection cavity 10, and can perform assembly sealing on the first threading pipe 101 and the first threading hole 11 on the connection cavity 10, and the second threading pipe 102 and the second threading hole 12 on the connection cavity 10, so as to replace a turning joint when the threading protection device works, thereby realizing assembly sealing on wires threaded in the first threading pipe 101 and the second threading pipe 102.
Further, the pressing plate 20 of the present embodiment is provided with a first sealing pad (not shown) on the hole wall of the first semicircle hole 21, and a second sealing pad (not shown) on the hole wall of the second semicircle hole 22, when the pressing plate 20 is mounted on the connection cavity 10, the pressing plate 20 can press the first sealing pad with the first threading pipe 101 to deform and press the second sealing pad with the second threading pipe 102 to deform, so as to assemble and seal the pressing plate 20 with the first threading pipe 101 and the second threading pipe 102, thereby ensuring the sealing effect of assembling the first threading pipe 101 and the second threading pipe 102 on the connection cavity 10 when the pressing plate 20 is mounted on the connection cavity 10.
It should be noted that, in this embodiment, the first threading hole 11 formed on the connecting cavity 10 and the first semicircular hole 21 formed on the pressing plate 20, and the second threading hole 12 formed on the connecting cavity 10 and the second semicircular hole 22 formed on the pressing plate 20 are matched, specifically, the pressing plate 20 is attached to the connecting cavity 10 and penetrates through two circular holes matched with the first threading pipe 101 and the second threading pipe 102, then the pressing plate 20 is detached from the connecting cavity 10, and the parts of other semicircular holes on the pressing plate 20 are cut off, so that the connecting cavity 10 and the pressing plate 20 can be produced and manufactured conveniently.
In this embodiment, the connection cavity 10 of this embodiment is provided with a threaded hole 14, the pressing plate 20 is provided with a connection hole 23 matching with the threaded hole 14, and the threading protection device further includes a bolt (not shown), which passes through the connection hole 23 and is screwed to the threaded hole 14, so as to fix the pressing plate 20 on the connection cavity 10 in a limited manner, thereby fixing the pressing plate 20 on the connection cavity 10, and fixing the pressing plate 20 on the connection cavity 10 by using the bolt, thereby ensuring the tightness of the assembly between the connection cavity 10 and the first threading tube 101 and the second threading tube 102 when the pressing plate 20 is mounted on the connection cavity 10.
Further, the number of the threaded holes 14 is two, and the two threaded holes 14 are respectively located at two sides of the wire passing groove 13, so that the pressing plate 20 and the connecting cavity 10 are connected and fixed by two bolts, and therefore the stability of the installation of the pressing plate 20 on the connecting cavity 10 is ensured.
In this embodiment, the connection cavity 10 of this embodiment is set to be hollow square steel, so that the connection cavity 10 can be obtained locally, and the effect of reducing the production cost of the connection cavity 10 is achieved. The hollow square steel connecting the cavity 10 may be cut out from the existing square steel, and then both ends of the two square steels may be plugged.
Moreover, the pressing plate 20 in this embodiment is set to be an iron plate, so that the pressing plate 20 can be obtained locally, and further has the effect of reducing the production cost of the pressing plate 20.
In this embodiment, the width of the pressing plate 20 is equal to the width of the side surface of the connecting cavity 10 for assembling the pressing plate 20, so as to improve the overall external appearance of the threading protection device, which is not described herein.
In addition, it should be noted that, the center line of the first threading hole 11 and the center line of the second threading hole 12 are perpendicular to each other in this embodiment, so as to meet the use requirement of the first threading pipe 101 and the second threading pipe 102 in the field that the arrangement is 90 °.
In summary, through reasonable structural arrangement, the threading protection device can be assembled and sealed with the first threading pipe and the second threading pipe on line so as to meet the requirement of wire sealing, and the threading protection device can realize hard sealing of the first threading pipe and the second threading pipe, meets the design requirement of additionally installing sealing between the first threading pipe and the second threading pipe, and further has the effect of prolonging the service life.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above-described embodiments represent only a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The threading protection device is applied to flammable and explosive environments and is used for connecting and communicating a first threading pipe and a second threading pipe, a preset angle is formed between the first threading pipe and the second threading pipe, and wires are connected in the first threading pipe and the second threading pipe in a threading way;
the method is characterized in that: the wire passing groove is arranged at a position between the first threading hole and the second threading hole, and the first threading pipe and the second threading pipe can be correspondingly inserted into the first threading hole and the second threading hole; the pressing plate is provided with a first semicircular hole matched with the first threading pipe and a second semicircular hole matched with the second threading pipe, and can be fixed on the connecting cavity so that the hole wall of the first semicircular hole is in pressing sealing with the first threading pipe, and the hole wall of the second semicircular hole is in pressing sealing with the second threading pipe;
the clamp plate is in be provided with first sealed pad on the pore wall of first semicircle orifice be provided with the second is sealed to be filled up on the pore wall of second semicircle orifice, the clamp plate install in when connecting the cavity, the clamp plate can with first threading pipe extrusion first is sealed to be filled up the deformation, with the second threading pipe extrusion second is sealed to be filled up the deformation, in order to with the clamp plate with first threading pipe reaches the second threading pipe is assembled sealedly.
2. The threading protection device of claim 1, wherein: the connecting cavity is provided with a threaded hole, and the pressing plate is provided with a connecting hole matched with the threaded hole; the threading protection device further comprises a bolt, and the bolt penetrates through the connecting hole and is in threaded connection with the threaded hole, so that the pressing plate is limited and fixed on the connecting cavity.
3. The threading protection device of claim 2, wherein: the number of the threaded holes is two, and the two threaded holes are respectively arranged on two sides of the wire passing groove.
4. The threading protection device of claim 1, wherein: the circle center of the first threading hole and the circle center of the second threading hole are arranged on the straight line where the wire passing groove is located.
5. The threading protection device of claim 1, wherein: the connecting cavity is formed by hollow square steel.
6. The threading protection device of claim 1, wherein: the pressing plate is arranged as an iron plate.
7. The threading protection device of claim 1, wherein: the width of the pressing plate is equal to the width of the side face of the connecting cavity, which is used for assembling the pressing plate.
8. The threading protection device of claim 1, wherein: the circular center line of the first threading hole is perpendicular to the circular center line of the second threading hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111514788.4A CN114374178B (en) | 2021-12-13 | 2021-12-13 | Threading protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111514788.4A CN114374178B (en) | 2021-12-13 | 2021-12-13 | Threading protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114374178A CN114374178A (en) | 2022-04-19 |
| CN114374178B true CN114374178B (en) | 2024-02-27 |
Family
ID=81140495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111514788.4A Active CN114374178B (en) | 2021-12-13 | 2021-12-13 | Threading protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114374178B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245417A (en) * | 2007-03-27 | 2008-10-09 | Sekisui Chem Co Ltd | Cable-protecting tube and branch pipe joint |
| CN202749764U (en) * | 2012-03-27 | 2013-02-20 | 单华珍 | Novel explosion-proof bent threading box |
| KR20150049055A (en) * | 2013-10-29 | 2015-05-08 | 조권제 | Electric box of ceiling |
| CN206053342U (en) * | 2016-08-31 | 2017-03-29 | 山西四建集团有限公司 | The T-shaped turning joint of pipe arrangement in honeycomb core cassette ceiling girt strip |
| CN107546678A (en) * | 2017-07-30 | 2018-01-05 | 江苏优远机械有限公司 | A kind of automotive wire bundle containing tube |
| CN207459626U (en) * | 2017-08-29 | 2018-06-05 | 江苏冠奕达防爆电器有限公司 | Anti-explosion terminal box with closure pipe |
| CN211089030U (en) * | 2020-01-15 | 2020-07-24 | 河南华能联合电力建设有限公司 | Cable corner structure for electric power construction |
| CN212481210U (en) * | 2020-07-06 | 2021-02-05 | 广东安普智信电气有限公司 | Street lamp cluster pipe |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1137034A (en) * | 1967-01-31 | 1968-12-18 | Thorsman & Co Ab | Improvements in or relating to electric conduit boxes |
| CN201690170U (en) * | 2010-06-04 | 2010-12-29 | 张福胜 | Protective pipe fitting for wires and cables |
| CN205544066U (en) * | 2016-02-02 | 2016-08-31 | 广东宏际线管实业有限公司 | Threading union coupling seat structure |
| CN209497217U (en) * | 2019-03-04 | 2019-10-15 | 浙江亚厦装饰股份有限公司 | Can same layer cross wiring crossing line piece |
| CN212991883U (en) * | 2020-09-01 | 2021-04-16 | 青岛中加特电气股份有限公司 | Threading sealing structure of frequency conversion all-in-one machine |
| CN213959658U (en) * | 2020-12-29 | 2021-08-13 | 成都鑫鑫福祥网络科技有限公司 | Adjustable cloth pipe threading box |
-
2021
- 2021-12-13 CN CN202111514788.4A patent/CN114374178B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245417A (en) * | 2007-03-27 | 2008-10-09 | Sekisui Chem Co Ltd | Cable-protecting tube and branch pipe joint |
| CN202749764U (en) * | 2012-03-27 | 2013-02-20 | 单华珍 | Novel explosion-proof bent threading box |
| KR20150049055A (en) * | 2013-10-29 | 2015-05-08 | 조권제 | Electric box of ceiling |
| CN206053342U (en) * | 2016-08-31 | 2017-03-29 | 山西四建集团有限公司 | The T-shaped turning joint of pipe arrangement in honeycomb core cassette ceiling girt strip |
| CN107546678A (en) * | 2017-07-30 | 2018-01-05 | 江苏优远机械有限公司 | A kind of automotive wire bundle containing tube |
| CN207459626U (en) * | 2017-08-29 | 2018-06-05 | 江苏冠奕达防爆电器有限公司 | Anti-explosion terminal box with closure pipe |
| CN211089030U (en) * | 2020-01-15 | 2020-07-24 | 河南华能联合电力建设有限公司 | Cable corner structure for electric power construction |
| CN212481210U (en) * | 2020-07-06 | 2021-02-05 | 广东安普智信电气有限公司 | Street lamp cluster pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114374178A (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104160197B (en) | Flanged joint linkage structure | |
| CN114374178B (en) | Threading protection device | |
| SE1451192A1 (en) | Insert block half | |
| CN220387974U (en) | Practical non-moving fire area presses trompil special fixture | |
| CN117108843A (en) | Aluminum alloy compressed air pipeline connecting elbow | |
| CN201748073U (en) | Double flange transmission joint | |
| CN203115338U (en) | Compression type single ferrule fitting | |
| CN215568926U (en) | Quick leaking stoppage cover for high-pressure oil pipeline | |
| KR101580154B1 (en) | Couplings for pipe repair | |
| CN211118033U (en) | Cable and pipeline penetration sealing device | |
| CN201028219Y (en) | Pipe joint for connecting polythene or polyvinyl chloride pipes | |
| CN211083188U (en) | Prevent pipeline connector that GR pipeline breaks away from | |
| KR101498237B1 (en) | Apparatus of fixing pressure gauge for air conditioner | |
| KR100989739B1 (en) | Explosion Proof Sealing Fitting | |
| CN217422340U (en) | Dual supply power supply multi-gear temperature control valve seal assembly | |
| CN201028216Y (en) | Metal pipe joint for connecting polythene or polyvinyl chloride pipes | |
| CN220286692U (en) | Pipeline connecting piece convenient to installation | |
| CN219588378U (en) | Pipeline joint, battery pack and electricity utilization device | |
| CN214947277U (en) | Buried compensation type insulating joint | |
| CN201651659U (en) | Environmental protection sealing gasket for pipe fitting leak stopper | |
| CN218895116U (en) | Fire hose coupling assembling | |
| CN214889721U (en) | Quick plugging device of pipeline | |
| CN213151566U (en) | Explosion-proof junction box | |
| CN210398109U (en) | Device for quickly and blindly cutting off power medium pipeline | |
| CN221723710U (en) | Double-adhesive-tape sealed pipeline rush-repair device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |