CN111795215A - Supporting structure is filled in water conservancy pipeline construction - Google Patents
Supporting structure is filled in water conservancy pipeline construction Download PDFInfo
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- CN111795215A CN111795215A CN202010652485.8A CN202010652485A CN111795215A CN 111795215 A CN111795215 A CN 111795215A CN 202010652485 A CN202010652485 A CN 202010652485A CN 111795215 A CN111795215 A CN 111795215A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 230000008093 supporting effect Effects 0.000 title claims description 59
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000005728 strengthening Methods 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 71
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a water conservancy pipeline construction filling support structure, which comprises a conveying pipe, a protective pipe, a support framework main body and a strengthening support mechanism, wherein the support framework main body has a good support effect on the protective pipe outside the conveying pipe and also has a good protection function on the conveying pipe.
Description
Technical Field
The invention relates to the technical field of construction engineering equipment, in particular to a water conservancy pipeline construction filling support structure.
Background
At present, among the building site construction process, construction drainage or water delivery system are indispensable, when establishing drainage and water delivery system, need use more pipeline, can be used for carrying and delivery water to the water supply pipe, be equivalent to a switching mouth, be responsible for being connected beginning and terminal, the water supply pipe that glass steel made has anticorrosive, easily washs, longe-lived, high strength, the quality is light, characteristics such as simple to operate, water conservancy pipeline is very important to the transport and the distribution of water resource.
In the construction process of a water conservancy pipeline in the prior art, a protective pipe is usually arranged on the outer side of a conveying water pipe, materials such as heat preservation and corrosion prevention are filled between the conveying water pipe and the protective pipe, the water conveying pipe is well protected, the materials filled between the protective pipe and the conveying pipe have certain supporting effect on the pipeline, and the pipeline is placed to deform after being used for a long time.
Disclosure of Invention
The invention aims to provide a water conservancy pipeline construction filling support structure to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a water conservancy pipeline construction filling support structure comprises a conveying pipe, a protective pipe, a support framework main body and a strengthening support mechanism;
the supporting framework main body is sleeved on the outer side wall of the conveying pipe, the outer side wall of the supporting framework main body is sleeved with the protective pipe, arc-shaped filling grooves are formed in the supporting framework main body at equal intervals, arc-shaped filling assemblies are arranged in the arc-shaped filling grooves, and supporting rings are arranged on the supporting framework main body at equal intervals;
a reinforced support mechanism is arranged in the support framework main body;
a second locking thread groove is symmetrically formed in the other side of the supporting framework main body, a second locking thread column is arranged in the second locking thread groove, a rotating groove is formed in the end face of one end of the second locking thread column, and a second movable rod is movably connected in the second locking thread groove of the supporting framework main body;
one end of the second movable rod is connected with a second connecting spring, a second pushing rack is arranged at the same end of the second connecting spring of the second movable rod, and a rotating round block is arranged at the side position of the second movable rod of the support frame main body;
one side of the rotating round block is equidistantly provided with a toothed block, the other side of the rotating round block is provided with an arc extrusion chute, a second T-shaped movable extrusion block is movably connected in the arc extrusion chute, and the second T-shaped movable extrusion block is movably inserted into the supporting framework main body.
Preferably, the reinforced support mechanism comprises a first locking threaded column, a clamping groove, a first locking threaded groove, a first movable rod, a first extrusion chute, a transmission rack, a transmission gear set, a first pushing rack, an L-shaped push rod, a first T-shaped movable extrusion block, a second extrusion chute and an arc auxiliary support plate, wherein the first locking threaded column is arranged in the first locking threaded groove, the first locking threaded groove is symmetrically arranged at one end of the support frame main body, the clamping groove is equidistantly arranged at the side of the first locking threaded column, the first movable rod is movably arranged in the support frame main body, a first connecting spring is arranged at one end of the support frame main body, the first extrusion chute is equidistantly arranged in the first movable rod, the transmission rack is movably arranged in the support ring, and the transmission rack is meshed and connected with one side of the transmission gear set, the opposite side meshing of drive gear group is connected and is provided with first promotion rack, the one end symmetry of first promotion rack is provided with L type push rod, the avris activity of L type push rod one end is provided with first T type activity and extrudes the piece, the symmetry is provided with reset spring on the first T type activity extrudes the piece to the one end of first T type activity extrusion piece is provided with slope, the other end setting is in second extrusion chute, second extrusion chute symmetry sets up the avris at arc auxiliary support plate, arc auxiliary support plate activity sets up in the support ring.
Preferably, the thickness of the second T-shaped movable extrusion block is equal to the width of the cross section of the notch of the arc-shaped extrusion chute.
Preferably, the transmission rack corresponds to the first extrusion chute and the support ring in arrangement position and is arranged in the same number.
Preferably, the second extrusion chute and the first T-shaped movable extrusion block are arranged at positions corresponding to each other and have the same number of groups, and four groups are symmetrically arranged on two sides of the arc-shaped auxiliary support plate.
Preferably, the first pushing rack is the same as the transmission gear set, the transmission rack in tooth form angle and modulus.
Compared with the prior art, the invention has the beneficial effects that:
1. the supporting framework main body has a good supporting effect on the protective pipe outside the conveying pipe, and also has a good protection function on the conveying pipe, and moreover, the supporting strength of the protective pipe can be strengthened through the strengthening supporting mechanism arranged in the supporting framework main body, so that the protective pipe is not easy to deform and damage due to extrusion in the use process, the service life of the protective pipe is prolonged, and the supporting protection effect is improved;
2. the avris through first locking screw post is provided with second T type activity extrusion piece in strengthening the supporting mechanism, through the second movable rod, the second promotes the rack, the rotation circle piece, the profile modeling piece, the linkage effect of arc extrusion chute, make second T type activity extrusion piece can the card of first locking screw post die, and then make strengthening the supporting mechanism more firm and stable to the supporting role that supports the framework main part, and then more lasting and stable to the support of protection pipeline, improve its construction engineering quality, guarantee work economic benefits.
Drawings
FIG. 1 is a right side schematic view of a structural connection according to the present invention;
FIG. 2 is a schematic left side view of the structural connection of the present invention;
FIG. 3 is an exploded view of the structural attachment of the support frame body to the arcuate packing assembly of the present invention;
FIG. 4 is a right side view of a partial cross-sectional view of a structural joint according to the present invention;
FIG. 5 is a partially enlarged view of the connection structure of the reinforcing support mechanism of FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of the first locking threaded post locking connection of FIG. 4 according to the present invention;
FIG. 7 is a left side schematic view of a structural joint in partial cross-section of the present invention;
fig. 8 is a partially enlarged view illustrating the connection structure of fig. 7 according to the present invention.
In the figure: the device comprises a conveying pipe 1, a protective pipe 2, a supporting framework main body 3, an arc-shaped filling groove 4, an arc-shaped filling assembly 5, a supporting ring 6, a strengthening supporting mechanism 7, a first locking threaded column 701, a clamping groove 702, a first locking threaded groove 703, a first movable rod 704, a first extrusion chute 705, a transmission rack 706, a transmission gear set 707, a first pushing rack 708, an L-shaped push rod 709, a first T-shaped movable extrusion block 710, a second extrusion chute 711, an arc-shaped auxiliary supporting plate 712, a second locking threaded groove 8, a second locking threaded column 9, a rotating groove 10, a second movable rod 11, a second pushing rack 12, a rotating circular block 13, a toothed block 14, an arc-shaped extrusion chute 15 and a second T-shaped movable extrusion block 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: a water conservancy pipeline construction filling support structure comprises a conveying pipe 1, a protective pipe 2, a support framework main body 3 and a strengthening support mechanism 7;
the supporting framework main body 3 is sleeved on the outer side wall of the conveying pipe 1, the outer side wall of the supporting framework main body 3 is sleeved with the protective pipe 2, the supporting framework main body 3 is equidistantly provided with an arc filling groove 4, an arc filling assembly 5 is arranged in the arc filling groove 4, and the supporting framework main body 3 is equidistantly provided with supporting rings 6;
a reinforced support mechanism 7 is arranged in the support frame main body 3;
a second locking thread groove 8 is symmetrically formed in the other side of the supporting framework main body 3, a second locking thread column 9 is arranged in the second locking thread groove 8, a rotating groove 10 is formed in the end face of one end of the second locking thread column 9, and a second movable rod 11 is movably connected in the second locking thread groove 8 of the supporting framework main body 3;
one end of the second movable rod 11 is connected with a second connecting spring, the second movable rod 11 is provided with a second pushing rack 12 at the same end of the second connecting spring, and the support frame main body 3 is provided with a rotating round block 13 at the side position of the second movable rod 11;
one side of the rotating round block 13 is equidistantly provided with a tooth-shaped block 14, the other side is provided with an arc extrusion chute 15, a second T-shaped movable extrusion block 16 is movably connected in the arc extrusion chute 15, and the second T-shaped movable extrusion block 16 is movably inserted in the supporting framework main body 3.
Further, the strengthening support mechanism 7 comprises a first locking threaded column 701, a clamping groove 702, a first locking threaded groove 703, a first movable rod 704, a first extrusion chute 705, a transmission rack 706, a transmission gear set 707, a first pushing rack 708, an L-shaped push rod 709, a first T-shaped movable extrusion block 710, a second extrusion chute 711, and an arc auxiliary support plate 712, wherein the first locking threaded column 701 is disposed in the first locking threaded groove 703, the first locking threaded groove 703 is symmetrically disposed at one end of the support frame body 3, the clamping grooves 702 are equidistantly disposed at the lateral sides of the first locking threaded column 701, the first movable rod 704 is movably disposed in the support frame body 3, one end of the support frame body 3 is provided with a first connecting spring, the first extrusion chute 705 is equidistantly disposed in the first movable rod 704, the transmission chute 705 is provided with a rack 706, the rack 706 is movably disposed in the support ring 6, the transmission rack 706 is arranged on one side of the transmission gear group 707 in a meshing connection mode, the first pushing rack 708 is arranged on the other side of the transmission gear group 707 in a meshing connection mode, an L-shaped push rod 709 is symmetrically arranged at one end of the first pushing rack 708, a first T-shaped movable extrusion block 710 is movably arranged on the side of one end of the L-shaped push rod 709, return springs are symmetrically arranged on the first T-shaped movable extrusion block 710, a slope is arranged at one end of the first T-shaped movable extrusion block 710, the other end of the first T-shaped movable extrusion block is arranged in a second extrusion chute 711, the second extrusion chute 711 is symmetrically arranged on the side of the arc-shaped auxiliary support plate 712, and the arc-shaped auxiliary support plate.
Further, the thickness of the second T-shaped movable extrusion block 16 is equal to the width of the cross section of the notch of the arc-shaped extrusion chute 15.
Furthermore, the driving rack 706 corresponds to the first extrusion chute 705 and the support ring 6 in the same number of sets.
Further, the second extrusion chutes 711 correspond to the first T-shaped movable extrusion blocks 710 in arrangement positions and are arranged in the same number of groups, and four groups are symmetrically arranged on two sides of the arc auxiliary support plate 712.
Further, the first push rack 708 has the same tooth form angle and module as the transmission gear set 707 and the transmission rack 706.
The working principle is as follows: when the invention is used for supporting construction work, firstly, the arc-shaped filling assembly 5 is placed in the arc-shaped filling groove 4 in the supporting framework main body 3, then the arc-shaped filling assembly 5 in the arc-shaped filling groove 4 is filled and sealed, then the conveying pipe 1 is inserted into the supporting framework main body 3, then the supporting framework main body 3 is inserted into the protective pipe 2, then the first locking threaded column 701 is rotated, the first locking threaded column 701 extrudes the first movable rod 704 along with the rotation of the first locking threaded column 701, further the first extrusion chute 705 on the first movable rod 704 extrudes the transmission rack 706, so as to drive the transmission gear set 707 to transmit, the transmission gear set 707 drives the first pushing rack 708 on the other side, the first pushing rack 708 further pushes the L-shaped push rod 709 to extrude the first T-shaped movable extrusion block 710, the first T-shaped movable extrusion block 710 further extrudes the second extrusion chute 711, so that the arc auxiliary supporting plate 712 is extruded outwards, and further the supporting strength of the supporting frame main body 3 to the protection pipe 2 is improved, when all the first locking threaded columns 701 are screwed, the second locking threaded column 9 arranged at the other end of the supporting frame main body 3 is screwed through the rotating groove 10, along with the rotation of the second locking threaded column 9, the second locking threaded column 9 extrudes the second movable rod 11, and further under the linkage action of the second pushing rack 12, the rotating round block 13 and the toothed block 14, the arc extrusion chute 15 extrudes and clamps the second T-shaped movable extrusion block 16 in the clamping groove 702 at the side of the first locking threaded column 701, so as to realize the locking and fixing of the position of the first locking threaded column 701, and the supporting construction work can be completed, therefore, for the invention, the supporting strength of the protection pipe can be strengthened, and the protection pipe can be ensured in the use process, the extrusion deformation damage is not easy to occur, the service life of the pipeline is prolonged, the supporting effect is improved, the supporting effect of the reinforced supporting mechanism 7 on the supporting frame main body 3 is firmer and more stable, the supporting effect on the protecting pipeline is more durable and more stable, the construction engineering quality of the pipeline is improved, and the economic benefit of the operation is guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a bearing structure is filled in water conservancy pipeline construction which characterized in that: comprises a conveying pipe (1), a protective pipe (2), a supporting framework main body (3) and a strengthening supporting mechanism (7);
the supporting framework main body (3) is sleeved on the outer side wall of the conveying pipe (1), the outer side wall of the supporting framework main body (3) is sleeved with the protective pipe (2), the supporting framework main body (3) is provided with arc-shaped filling grooves (4) at equal intervals, arc-shaped filling assemblies (5) are arranged in the arc-shaped filling grooves (4), and the supporting framework main body (3) is provided with supporting rings (6) at equal intervals;
a reinforced support mechanism (7) is arranged in the support framework main body (3);
a second locking thread groove (8) is symmetrically formed in the other side of the supporting framework main body (3), a second locking thread column (9) is arranged in the second locking thread groove (8), a rotating groove (10) is formed in the end face of one end of the second locking thread column (9), and a second movable rod (11) is movably connected in the second locking thread groove (8) of the supporting framework main body (3);
one end of the second movable rod (11) is connected with a second connecting spring, a second pushing rack (12) is arranged at the same end of the second connecting spring of the second movable rod (11), and a rotating round block (13) is arranged at the side position of the second movable rod (11) of the support frame main body (3);
one side of the rotating round block (13) is equidistantly provided with a tooth-shaped block (14), the other side of the rotating round block is provided with an arc extrusion chute (15), a second T-shaped movable extrusion block (16) is movably connected in the arc extrusion chute (15), and the second T-shaped movable extrusion block (16) is movably inserted in the supporting framework main body (3).
2. The water conservancy pipeline construction filling support structure of claim 1, characterized in that: the reinforced support mechanism (7) comprises a first locking threaded column (701), a clamping groove (702), a first locking threaded groove (703), a first movable rod (704), a first extrusion chute (705), a transmission rack (706), a transmission gear group (707), a first pushing rack (708), an L-shaped push rod (709), a first T-shaped movable extrusion block (710), a second extrusion chute (711) and an arc auxiliary support plate (712), wherein the first locking threaded column (701) is arranged in the first locking threaded groove (703), the first locking threaded groove (703) is symmetrically arranged at one end of the support frame main body (3), the clamping groove (702) is arranged at the equidistant side of the first locking threaded column (701), the first movable rod (704) is movably arranged in the support frame main body (3), and a first connecting spring is arranged at one end of the support frame main body (3), a first extrusion chute (705) is arranged in the first movable rod (704) at a middle distance, a transmission rack (706) is arranged in the first extrusion chute (705), the transmission rack (706) is movably arranged in the support ring (6), the transmission rack (706) is arranged on one side of the transmission gear set (707) in a meshing connection mode, a first pushing rack (708) is arranged on the other side of the transmission gear set (707) in a meshing connection mode, an L-shaped push rod (709) is symmetrically arranged at one end of the first pushing rack (708), a first T-shaped movable extrusion block (710) is movably arranged on the side of one end of the L-shaped push rod (709), return springs are symmetrically arranged on the first T-shaped movable extrusion block (710), one end of the first T-shaped movable extrusion block (710) is provided with a slope, the other end of the first T-shaped movable extrusion block is arranged in a second extrusion chute (711), and the second extrusion chute (711) is symmetrically arranged on the side of the arc-shaped auxiliary support plate, the arc auxiliary supporting plate (712) is movably arranged in the supporting ring (6).
3. The water conservancy pipeline construction filling support structure of claim 1, characterized in that: the thickness of the second T-shaped movable extrusion block (16) is equal to the width of the section of the notch of the arc-shaped extrusion chute (15).
4. The water conservancy pipeline construction filling support structure of claim 2, characterized in that: the transmission rack (706) corresponds to the first extrusion chute (705) and the support ring (6) in arrangement position and has the same arrangement number.
5. The water conservancy pipeline construction filling support structure of claim 2, characterized in that: the second extrusion chutes (711) correspond to the first T-shaped movable extrusion blocks (710) in arrangement position and are arranged in the same number, and four groups are symmetrically arranged on two sides of the arc-shaped auxiliary support plate (712).
6. The water conservancy pipeline construction filling support structure of claim 2, characterized in that: the first push rack (708) is the same as the transmission gear set (707) and the transmission rack (706) in tooth form angle and modulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652485.8A CN111795215B (en) | 2020-07-08 | 2020-07-08 | Supporting structure is filled in water conservancy pipeline construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652485.8A CN111795215B (en) | 2020-07-08 | 2020-07-08 | Supporting structure is filled in water conservancy pipeline construction |
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| Publication Number | Publication Date |
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| CN111795215A true CN111795215A (en) | 2020-10-20 |
| CN111795215B CN111795215B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010652485.8A Active CN111795215B (en) | 2020-07-08 | 2020-07-08 | Supporting structure is filled in water conservancy pipeline construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954993A (en) * | 2021-02-01 | 2021-06-11 | 北海翰博士科技有限公司 | Electromagnetic waveguide electric metal film with EMI resistance |
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| CN208651959U (en) * | 2018-05-21 | 2019-03-26 | 杨毅 | A kind of water pipeline for hydraulic engineering |
| CN209214482U (en) * | 2018-10-24 | 2019-08-06 | 杭州师范大学 | Water plant stem length observation device |
| CN110375125A (en) * | 2019-06-05 | 2019-10-25 | 安徽管益生新材料科技有限公司 | A kind of environmentally protective PE tubing |
| RU195865U1 (en) * | 2019-04-16 | 2020-02-07 | Общество С Ограниченной Ответственностью "Бт Свап" | PIPE WITH CABLE CHANNELS |
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2020
- 2020-07-08 CN CN202010652485.8A patent/CN111795215B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090026842A (en) * | 2007-09-11 | 2009-03-16 | 주식회사 엠티마스타 | Steel pipe repair and reinforcement work method |
| CN207205378U (en) * | 2017-09-27 | 2018-04-10 | 洛阳长峰电子科技有限公司 | A kind of milling machine of airborne vehicle hanger lock device housing |
| CN208651959U (en) * | 2018-05-21 | 2019-03-26 | 杨毅 | A kind of water pipeline for hydraulic engineering |
| CN209214482U (en) * | 2018-10-24 | 2019-08-06 | 杭州师范大学 | Water plant stem length observation device |
| RU195865U1 (en) * | 2019-04-16 | 2020-02-07 | Общество С Ограниченной Ответственностью "Бт Свап" | PIPE WITH CABLE CHANNELS |
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| CN112954993A (en) * | 2021-02-01 | 2021-06-11 | 北海翰博士科技有限公司 | Electromagnetic waveguide electric metal film with EMI resistance |
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| CN111795215B (en) | 2021-11-12 |
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