CN115142596A - Building curtain wall heat-insulation bridge heat-insulation system and construction method thereof - Google Patents
Building curtain wall heat-insulation bridge heat-insulation system and construction method thereof Download PDFInfo
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- CN115142596A CN115142596A CN202210861782.2A CN202210861782A CN115142596A CN 115142596 A CN115142596 A CN 115142596A CN 202210861782 A CN202210861782 A CN 202210861782A CN 115142596 A CN115142596 A CN 115142596A
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- 238000009413 insulation Methods 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 37
- 238000004321 preservation Methods 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
The invention provides a building curtain wall heat-breaking bridge heat-insulation system and a construction method thereof, wherein the building curtain wall heat-breaking bridge heat-insulation system comprises a wall body, a curtain wall main body is arranged on one side of the wall body, keel frames are fixedly connected between the curtain wall main body and the wall body and on two sides of the curtain wall main body, a partition plate is fixedly connected to the middle part of the interior of the curtain wall main body, a through hole is formed in the middle part of one side of the partition plate, a heat absorption cover is fixedly connected to one side of the through hole, a flow through hole is fixedly connected to the bottom end of the through hole, a fixing plate is fixedly connected to one side of the flow through hole, a driving motor is fixedly connected to the middle part of the fixing plate, and a draught fan is arranged at the driving end of the driving motor; the recess has been seted up to the one end of curtain main part, and the equal fixedly connected with dashpot in both sides of recess. The waterproof layer and the moisture-proof layer are used for blocking moisture permeation, moisture is reduced and prevented from permeating, the heat-resistant layer and the heat-insulating layer are used for heat insulation, and the heat-insulating layer is used for heat insulation of a wall body, so that the heat bridge cutoff effect caused by large temperature change is avoided.
Description
Technical Field
The invention relates to the technical field of building engineering, in particular to a heat-insulation bridge heat-insulation system of a building curtain wall and a construction method thereof.
Background
The curtain wall is the outer wall enclosure of the building, does not bear the weight, hangs like a curtain, so is also called as a curtain wall, and is a light wall with decorative effect commonly used by modern large-scale and high-rise buildings. The outer protective structure or decorative structure of the building consists of a panel and a supporting structure system, can have certain displacement capacity or certain deformation capacity relative to a main structure, and does not bear the function of the main structure (an outer wall frame type supporting system is also one type of a curtain wall system).
The thermal bridge effect is due to the lack of handling good heat transfer (insulation). The heat bridge effect is more in the building with the brick-concrete structure, the same building can appear due to the influence of various factors such as temperature, humidity, heat and the like, some households are seriously mildewed, the requirements on the heat preservation and heat insulation performance of the building enclosure structure are continuously improved along with the improvement of the building energy-saving standard of China, and particularly the building standard with ultralow energy consumption and near zero energy consumption provides higher requirements on the heat preservation and heat insulation performance and the heat bridge cutoff performance of a curtain wall system.
Curtain wall heat bridge among the prior art can't realize perfect solution with the heat bridge effect in the aspect of handling, can cause the wall body will cause the humidity and the fracture problem of different degree after receiving rainwater and high temperature, and the tradition has the mode of solving the curtain effect and is reducing the gap to minimum, reach the drainage effect, it is great all to appear the inside heat to traditional curtain when using simultaneously, and lead to the curtain back to cause the high temperature, lead to traditional curtain wall structure ageing and break away from the split problem, compare still comparatively inconvenient with traditional mode, still need further perfect.
The applicant finds that a Chinese patent discloses a heat insulation system of a heat bridge of a building curtain wall and a construction method thereof through retrieval when applying the invention, and the application number is 202210070311.X, the patent mainly solves the problems of heat conductivity and thickness of the heat bridge, but the temperature is higher when the curtain wall is used and is directly irradiated by the sun, the discharge cannot be realized, the high temperature at the back of the curtain wall can be generated, the aging of various heat insulation and waterproof materials can be caused, and the inconvenience can be caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a heat-insulation bridge system of a building curtain wall and a construction method thereof, which solve the problems of discharging heat generated in the curtain wall and protecting the curtain wall from being affected with damp.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a building curtain wall heat-breaking bridge heat-insulation system comprises a wall body, wherein a curtain wall main body is arranged on one side of the wall body, keel frames are fixedly connected between the curtain wall main body and the wall body and on two sides of the curtain wall main body, a partition plate is fixedly connected to the middle inside the curtain wall main body, an opening is formed in the middle of one side of the partition plate, a heat-absorbing cover is fixedly connected to one side of the opening, a flow opening is fixedly connected to the bottom end of the opening, a fixing plate is fixedly connected to one side of the flow opening, a driving motor is fixedly connected to the middle of the fixing plate, and a draught fan is arranged at the driving end of the driving motor;
the curtain wall comprises a curtain wall main body and is characterized in that a groove is formed in one end of the curtain wall main body, buffer grooves are fixedly connected to the two sides of the groove, and a convex block is fixedly connected to the other end of the curtain wall main body.
Preferably, one end of the inside of the buffer slot is fixedly connected with a spring, the other end of the spring is fixedly connected with a push plate, and the other side of the push plate is fixedly connected with a pin block.
Preferably, a solar panel is fixedly connected to the upper portion of the middle portion of one side of the curtain wall main body, a heat absorbing plate is fixedly connected to the middle portion of one side of the curtain wall main body, and a heat radiating net is fixedly connected to the lower portion of the middle portion of one side of the curtain wall main body.
Preferably, one side fixedly connected with waterproof layer of baffle, one side fixedly connected with dampproof course of waterproof layer, one side fixedly connected with heat-resistant layer of dampproof course.
Preferably, one side of the heat-resistant layer is fixedly connected with the heat-insulating layer, one side of the heat-insulating layer is fixedly connected with the strong adhesive layer, and the strong adhesive layer is fixedly bonded with the wall body.
Preferably, the other end fixedly connected with fixed block of keel frame, expansion bolts has all been run through at the both ends of fixed block.
Preferably, the both ends of push pedal all fixedly connected with slider, and the outside sliding fit of slider has the spout.
Preferably, the convex block is matched with the groove in an inserted manner, and the plug pin block is matched with two sides of the convex block in an inserted manner.
A heat insulation construction method for a heat-insulation bridge of a building curtain wall comprises the following steps:
the method comprises the following steps: one end of the keel frame is fixedly connected with the curtain wall main body, the other end of the keel frame is fixedly connected with the fixed block, and expansion bolts penetrate through two sides of the fixed block;
step two: first curtain main part is fixed with the wall body, and second curtain main part bottom groove department and lug grafting cooperation, and first curtain main part and the laminating of second curtain main part junction are pegged graft simultaneously, and inside the bolt piece elasticity was retrieved to the dashpot simultaneously, and the lug is pegged graft to the recess inside back, spring elastic support, and the bolt piece is pegged graft to the lug inside.
The working principle is as follows: when the heat-insulating curtain wall is used, firstly, the keel frame 3 is used for fixedly connecting the curtain wall main body 2 with the fixing block 401 inside the wall body 1, the lug 5 of the first curtain wall main body 2 is in plug-in fit with the groove 6 of the second curtain wall main body after connection, elastic support is realized through the spring 602 inside the buffer groove 601 during plug-in, the plug pin block 604 is plugged into two sides of the lug 5 to realize fastening, and installation operation of the curtain wall main body 1 is achieved.
(III) advantageous effects
The invention provides a heat insulation system of a heat-insulation bridge of a building curtain wall and a construction method thereof. The method has the following beneficial effects:
1. the curtain wall fixing device is provided with the curtain wall main body, the keel frame and the wall body, and is fixedly connected with the curtain wall main body and the fixing block through the keel frame, so that the stable and fixing effect is achieved.
2. The heat absorption plate is used for collecting heat, the circulation is realized through the through hole and the circulation port, the induced draft fan is driven by the electric motor, the induced draft fan and the heat dissipation net discharge heat to work, the internal heat storage is reduced, and the problems that the heat is accumulated on the back face of the curtain wall after the curtain wall is heated, and the crack and the aging of the joint of the curtain wall are realized as long as time goes on are solved, so that the use is influenced.
3. The curtain wall comprises a curtain wall body and is characterized in that a convex block, a groove, a bolt block and a buffer groove are arranged, the convex block and the groove on the top end of the curtain wall body are matched in an inserted connection mode, and the bolt block and two sides of the convex block are inserted and connected for fastening and stabilizing, so that the connection is realized, the joint of a first curtain wall body and a second curtain wall body is fastened and attached at the same time, and the gap is reduced at the same time of fixing.
4. The wall body is provided with the waterproof layer, the damp-proof layer, the heat-resistant layer and the heat-insulating layer, wherein the waterproof layer and the damp-proof layer are used for blocking water, reducing and preventing moisture caused by water penetration, the heat-resistant layer and the heat-insulating layer are used for heat insulation of the wall body, the heat bridge cutoff effect caused by large temperature change is avoided, and the problems that the same floor can be formed on the wall body in the prior art, and some households are seriously mildewed and have different effects are solved.
Drawings
FIG. 1 is a schematic cross-sectional side view of the present invention;
FIG. 2 is a schematic side view of a separator of the present invention;
FIG. 3 is an enlarged view of FIG. 1A of the present invention;
FIG. 4 is an enlarged view of FIG. 1B of the present invention;
FIG. 5 is an enlarged schematic view of the invention at FIG. 2C;
fig. 6 is a perspective view of the present invention.
Wherein, 1, wall body; 2. a curtain wall main body; 201. a heat absorbing cover; 202. a port; 203. a solar panel; 204. a heat absorbing plate; 205. a heat-dissipating web; 3. a keel frame; 4. a partition plate; 401. a fixed block; 402. an expansion bolt; 5. a bump; 6. a groove; 601. a buffer tank; 602. a spring; 603. a chute; 604. a latch block; 605. pushing a plate; 7. a waterproof layer; 701. a moisture barrier layer; 702. a heat-resistant layer; 703. a heat-insulating layer; 704. a strong glue layer; 8. a flow port; 801. an induced draft fan; 802. the motor is driven.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-6, an embodiment of the present invention provides a thermal insulation system for a heat-breaking bridge of a building curtain wall and a construction method thereof, including a wall 1, a curtain wall main body 2 is disposed on one side of the wall 1, a keel frame 3 is fixedly connected between the curtain wall main body 2 and the wall 1 and on both sides, the keel frame 3 is used to fixedly connect the curtain wall main body 2 and an internal fixing block 401 of the wall 1, so as to achieve fixing and stabilizing effects, a partition plate 4 is fixedly connected to the middle of the inside of the curtain wall main body 2, a partition plate 4 is disposed on one side of a through opening 202, so as to achieve auxiliary blocking effects through the partition plate 4, and at the same time, heat blocking is provided through the partition plate 4, so as to effectively solve the problem of high temperature aging of a waterproof layer 7 and a moisture-proof layer 701, a through opening 202 is disposed in the middle of one side of the partition plate 4, and a heat absorption cover 201 is fixedly connected to one side of the through opening 202, a flow opening 8 is fixedly connected to achieve heat circulation through the through opening 202 and the flow opening 8, so as to achieve heat collection, and then discharge through the through opening 8, a fixing plate 802 is fixedly connected to achieve a driving motor 802 for driving, and a solar panel, and a driving end 801 is disposed inside of a solar panel, and a draught fan is disposed inside, and a solar panel, thereby achieving a working effect.
The solar panel 203 is fixedly connected to the upper portion of the middle of one side of the curtain wall main body 2, solar panel power generation is realized through the solar panel 203, electric quantity driving is realized through the electric motor 802, the absorber plate 204 is fixedly connected to the middle of one side of the curtain wall main body 2, heat absorption is realized through the absorber plate 204, heat collection is realized through the heat absorption cover 201, the radiator mesh 205 is fixedly connected to the lower portion of the middle of one side of the curtain wall main body 2, heat discharge is realized through the radiator mesh 205 on one side of the induced draft fan 801, and internal heat storage is reduced.
One side fixedly connected with waterproof layer 7 of baffle 4, waterproof layer 7 adopts the polyvinyl chloride material, one side fixedly connected with dampproof course 701 of waterproof layer 7, dampproof course 701 adopts high-pressure polyethylene material, waterproof and dampproof effect is realized through waterproof layer 7 and dampproof course 701, one side fixedly connected with heat-resistant layer 702 of dampproof course 701, heat-resistant layer 702 adopts high temperature resistant fiber material, one side fixedly connected with heat preservation 703 of heat-resistant layer 702, heat preservation 703 adopts the mineral wool material, waterproof layer 7 and dampproof course 701 are used for blockking the infiltration of moisture, it is moist to reduce and prevent the infiltration from taking place, heat-resistant layer 702 and heat preservation 703 are used for the heat separation, and heat preservation 703 is used for keeping warm to the wall body, avoid the great disconnected heat bridge effect that produces of temperature variation, heat-resistant layer 702 and heat preservation 703 realize heat-resisting and heat preservation effect, reduce the great change of wall body 1's temperature, one side fixedly connected with powerful glue film 704 of heat preservation 703, and powerful glue film 704 and wall body 1 bonding are fixed, can realize fixing with wall body 1 through powerful glue film 704, protection wall body 1 prevents to wet.
One end of the curtain wall main body 2 is provided with a groove 6, the connection is achieved through the insertion and matching of the groove 6 and a lug 5, the connection gap is reduced, both sides of the groove 6 are fixedly connected with a buffer groove 601, a buffering and recycling plug pin block 604 is realized through the buffer groove 601, the other end of the curtain wall main body 2 is fixedly connected with the lug 5, one end inside the buffer groove 601 is fixedly connected with a spring 602, the spring 602 is elastically supported through the spring 602, the fastening is facilitated, and the falling off is prevented, the other end of the spring 602 is fixedly connected with a push plate 605, the other side of the push plate 605 is fixedly connected with the plug pin block 604, the insertion and matching is realized through the lug 5 of the first curtain wall main body 2 and the groove 6 of the second curtain wall main body, the problem of aging and falling off caused by the prior art is solved through the plug pin block 604, the elastic support is realized through the spring 602 inside the buffer groove 601 during the insertion and connection, and possess the elasticity back pressure through spring 602, make bolt piece 604 back pressure to inside buffer slot 601, lug 5 insertion, make its bolt piece 604 peg graft to lug 5 both sides and realize the fastening, reach curtain main part 1 installation operation, the equal fixedly connected with slider in both ends of push pedal 605, and the outside sliding fit of slider has spout 603, it removes stabilizing effect to increase push pedal 605 through slider and spout 603 sliding fit, skeleton 3's other end fixedly connected with fixed block 401, it makes its fixed curtain main part 2 to realize fixed skeleton 3 through fixed block 401, the both ends of fixed block 401 have all run through expansion bolts 402, reach through expansion bolts 402 with wall body fixed connection effect, lug 5 and recess 6 peg graft cooperation, and bolt piece 604 and lug 5 both sides peg graft cooperation, reach stable and fixed action, be not convenient for droing.
A heat insulation construction method for a heat-insulation bridge of a building curtain wall comprises the following steps:
the method comprises the following steps: one end of the keel frame 3 is fixedly connected with the curtain wall main body 2, the other end of the keel frame 3 is fixedly connected with the fixing block 401, and the two sides of the fixing block 401 penetrate through the expansion bolts 402;
step two: first curtain main part 2 is fixed with wall body 1, and 2 bottom recess 6 departments of second curtain main part are pegged graft with lug 5 and are cooperated, peg graft and laminate first curtain main part 2 and 2 junctions of second curtain main part simultaneously, and inside simultaneously the bolt piece 604 elasticity was retrieved to dashpot 601, lug 5 pegged graft to the inside back of recess 6, spring 602 elastic support, and inside the bolt piece 604 pegged graft to lug 5.
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 (9)
1. The utility model provides a building curtain cuts off heat bridge heat preservation system, includes wall body (1), its characterized in that: the curtain wall comprises a wall body (1), and is characterized in that a curtain wall main body (2) is arranged on one side of the wall body (1), keel frames (3) are fixedly connected between the curtain wall main body (2) and the wall body (1) and on two sides of the curtain wall main body, a partition plate (4) is fixedly connected to the middle inside of the curtain wall main body (2), an opening (202) is arranged in the middle of one side of the partition plate (4), a heat absorbing cover (201) is fixedly connected to one side of the opening (202), a flow opening (8) is fixedly connected to the bottom end of the opening (202), a fixing plate is fixedly connected to one side of the flow opening (8), a driving motor (802) is fixedly connected to the middle of the fixing plate, and a draught fan (801) is arranged at the driving end of the driving motor (802);
one end of the curtain wall main body (2) is provided with a groove (6), two sides of the groove (6) are fixedly connected with buffer grooves (601), and the other end of the curtain wall main body (2) is fixedly connected with a lug (5).
2. The building curtain wall heat-insulating bridge system according to claim 1, wherein: one end of the interior of the buffer groove (601) is fixedly connected with a spring (602), the other end of the spring (602) is fixedly connected with a push plate (605), and the other side of the push plate (605) is fixedly connected with a pin block (604).
3. The building curtain wall broken heat bridge heat insulation system as claimed in claim 1, wherein: the solar curtain wall is characterized in that a solar panel (203) is fixedly connected to the upper portion of the middle portion of one side of the curtain wall main body (2), a heat absorbing plate (204) is fixedly connected to the middle portion of one side of the curtain wall main body (2), and a heat radiating net (205) is fixedly connected to the lower portion of the middle portion of one side of the curtain wall main body (2).
4. The building curtain wall broken heat bridge heat insulation system as claimed in claim 1, wherein: one side fixedly connected with waterproof layer (7) of baffle (4), one side fixedly connected with dampproof course (701) of waterproof layer (7), one side fixedly connected with heat-resistant layer (702) of dampproof course (701).
5. The building curtain wall broken heat bridge heat insulation system as claimed in claim 4, wherein: one side of the heat-resistant layer (702) is fixedly connected with a heat-insulating layer (703), one side of the heat-insulating layer (703) is fixedly connected with a strong adhesive layer (704), and the strong adhesive layer (704) is fixedly bonded with the wall body (1).
6. The building curtain wall broken heat bridge heat insulation system as claimed in claim 1, wherein: the other end fixedly connected with fixed block (401) of keel frame (3), expansion bolts (402) have all been run through at the both ends of fixed block (401).
7. The building curtain wall heat-insulating bridge system according to claim 2, wherein: the two ends of the push plate (605) are fixedly connected with sliding blocks, and sliding grooves (603) are arranged outside the sliding blocks in sliding fit.
8. The building curtain wall heat-insulating bridge system according to claim 1, wherein: the convex block (5) is in inserting fit with the groove (6), and the plug pin block (604) is in inserting fit with two sides of the convex block (5).
9. The heat insulation construction method for the heat-insulation bridge of the building curtain wall as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
the method comprises the following steps: one end of the keel frame (3) is fixedly connected with the curtain wall main body (2), the other end of the keel frame (3) is fixedly connected with the fixing block (401), and the two sides of the fixing block (401) penetrate through expansion bolts (402);
step two: first piece curtain main part (2) are fixed with wall body (1), and second piece curtain main part (2) bottom recess (6) department and lug (5) cooperation of pegging graft, peg graft and laminate first piece curtain main part (2) and second piece curtain main part (2) junction simultaneously, it is inside to dashpot (601) to peg graft simultaneously cotter block (604) elasticity, lug (5) are pegged graft to inside back of recess (6), spring (602) elastic support, and inside cotter block (604) are pegged graft to lug (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210861782.2A CN115142596A (en) | 2022-07-22 | 2022-07-22 | Building curtain wall heat-insulation bridge heat-insulation system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210861782.2A CN115142596A (en) | 2022-07-22 | 2022-07-22 | Building curtain wall heat-insulation bridge heat-insulation system and construction method thereof |
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