CN213420151U - Anticorrosive fixing device of high-rise indoor gas riser - Google Patents

Anticorrosive fixing device of high-rise indoor gas riser Download PDF

Info

Publication number
CN213420151U
CN213420151U CN202021559633.3U CN202021559633U CN213420151U CN 213420151 U CN213420151 U CN 213420151U CN 202021559633 U CN202021559633 U CN 202021559633U CN 213420151 U CN213420151 U CN 213420151U
Authority
CN
China
Prior art keywords
sleeve
gas
clamping piece
fixing device
gas riser
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
Application number
CN202021559633.3U
Other languages
Chinese (zh)
Inventor
袁亮
梁小林
张伟
李晓光
刘彦飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Shouchuang Tiancheng Engineering Technology Co ltd
Original Assignee
Shaanxi Shouchuang Tiancheng Engineering Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Shouchuang Tiancheng Engineering Technology Co ltd filed Critical Shaanxi Shouchuang Tiancheng Engineering Technology Co ltd
Priority to CN202021559633.3U priority Critical patent/CN213420151U/en
Application granted granted Critical
Publication of CN213420151U publication Critical patent/CN213420151U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

The utility model belongs to the technical field of high-rise gas pipeline installation, in particular to an anti-corrosion fixing device for a high-rise indoor gas riser, which comprises a gas riser penetrating through a floor slab, wherein a sleeve is arranged on the circumference of the gas riser, and a first clamping piece and a second clamping piece are respectively arranged on the upper end surface and the lower end surface of the sleeve and the gas riser; a support plate is fixedly arranged on the outer wall of the sleeve, the support plate is perpendicular to the radial direction of the sleeve, and the lower surface of the support plate is attached to the top surface of the floor slab; the gap between the sleeve and the gas vertical pipe is filled with an anti-corrosion layer, the outer wall of the sleeve is wrapped by an anti-corrosion winding belt, and the device is also provided with a detection alarm system. This device bears the weight of the dead of gas riser jointly as an organic whole and hot flexible thrust, and the perpendicular transmission does not have any moment with gas riser, sleeve pipe and backup pad and floor fixed connection, carries out anticorrosive treatment and sets up detection alarm system to the gas riser in addition, ensures the safe gas of using.

Description

Anticorrosive fixing device of high-rise indoor gas riser
Technical Field
The utility model belongs to the technical field of high-rise gas pipeline installation, concretely relates to anticorrosive fixing device of high-rise indoor gas riser.
Background
At present, along with the rapid promotion of urbanization in China, people gradually eliminate gas with serious pollution, and what is brought is a clean and environment-friendly natural gas energy source, however, along with the continuous increase of buildings of floors, the length of a gas vertical pipe is lengthened, and the pipeline becomes thick, so that the dead weight of the gas pipeline is increased in a geometric manner, and in order to prevent the gas vertical pipe from sinking, the fixation of the gas vertical pipe becomes more important.
The conventional gas vertical pipe is provided with a fixed support bearing the dead weight and the thermal telescopic thrust, namely, a vertical pipe type support (n-shaped or T-shaped angle steel type support) is arranged on a horizontal gas pipeline at the lower end of the gas vertical pipe, the gas pipeline is fixed by a U-shaped pipe clamp to play a role of the fixed support, and a bearing point bearing the dead weight and the thermal telescopic thrust is arranged on the outdoor ground; and secondly, mounting horizontal angle steel type supports on every six layers of walls (namely angle steel is horizontally pre-buried on the walls or welded into an L shape, one end of the angle steel is fixed on the walls by expansion bolts), firmly fixing the gas pipeline by using a U-shaped bolt pipe clamp to play a role of fixing the supports, and bearing points bearing dead weight and thermal expansion thrust are arranged on the walls. As for the installation of the movable support, the movable support has the same structure as a horizontal angle steel type support on a wall, and only can not be firmly fixed with a gas pipeline when a U-shaped bolt pipe clamp is installed, a certain loose allowance is needed, so that the gas pipeline can move freely and only plays a role in guiding up and down.
The installation mode has the following two defects that firstly, the dead weight of the gas vertical pipe, the thermal telescopic thrust and the bearing point have certain moment, and the deformation of a horizontal angle steel type bracket arranged on the wall or the firmness degree of the horizontal angle steel type bracket and the wall is influenced; and secondly, when the U-shaped bolt pipe clamp is installed and fixed, if the specified firm degree is not reached, the effect of bearing dead weight and thermal expansion thrust is lost, so that the corrosion-resistant layer of the gas pipeline and the gas pipeline are abraded, and even gas leakage and other safety problems are caused.
In addition, because the gas vertical pipe is generally arranged in a kitchen and is arranged together with a water pipe and a water drain pipe, if the gas vertical pipe is not well subjected to corrosion prevention treatment during installation, the gas pipeline is corroded or broken, and the use safety is endangered.
In view of the above, the present invention provides an anti-corrosion fixing device for a high-rise indoor gas riser to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides an anticorrosive fixing device for a high-rise indoor gas riser, which is characterized in that a sleeve is sleeved on the circumference of the gas riser, clamping pieces are respectively arranged on the upper end surface and the lower end surface of the sleeve and the gas riser, and a supporting plate is fixedly arranged on the outer wall of the sleeve, so that the dead weight and the thermal expansion thrust of the gas riser are finally and vertically transmitted to a floor as a bearing point, no moment exists, and the dead weight capacity of the gas riser is ensured to be borne; in addition, an anti-corrosion layer is arranged between the gas vertical pipe and the sleeve, and a detection alarm power system is established, so that the gas is safely used for a long time.
The to-be-solved technical problem of the utility model is realized through following technical scheme: the device comprises a gas vertical pipe, wherein the gas vertical pipe penetrates through a through hole formed in a floor slab, a sleeve is sleeved at the through hole of the floor slab in the circumferential direction of the gas vertical pipe, a first clamping piece and a second clamping piece are respectively arranged on the upper end surface and the lower end surface of the sleeve and the gas vertical pipe, and the first clamping piece and the second clamping piece are respectively used for connecting and fixing the gas vertical pipe and the floor slab into a whole through bolts and nuts;
a support plate is fixedly arranged on the outer wall of the sleeve and is of a flat structure, the support plate is perpendicular to the radial direction of the sleeve, and the lower surface of the support plate is attached to the top surface of the floor slab;
and a gap between the sleeve and the gas vertical pipe is filled with an anti-corrosion layer, the gap at the top is blocked by asphalt, and the outer wall of the sleeve is wrapped by an anti-corrosion winding belt.
Furthermore, the first clamping piece and the second clamping piece are hoop structures, and the lengths of the first clamping piece and the second clamping piece are respectively greater than the outer diameter of the sleeve.
Further, the first clamping piece and the second clamping piece are flat steel clasps.
Further, the inner ring clamping surfaces of the first clamping piece and the second clamping piece are respectively provided with a first rubber gasket and a second rubber gasket.
Further, a protective cover is arranged above the first clamping piece and used for preventing liquid from permeating and corroding the gas vertical pipe and the sleeve pipe.
Furthermore, the anti-corrosion layer is made of solvent-free epoxy polymer material.
Further, the bottom end of the sleeve is flush with the bottom surface of the floor slab, and cement mortar is filled in a gap between the sleeve and the floor slab;
and an annular base plate is arranged at the top of the second clamping piece, and the diameter of the annular base plate is larger than that of the through hole formed in the floor slab.
Further, the shape of the supporting plate is any one of rectangle, square and circle.
Furthermore, the distance between the top end of the sleeve and the top surface of the floor slab is 40-60 cm.
Furthermore, a detection alarm system is arranged outside the sleeve and comprises a gas sensor, a signal amplifier, a signal converter, a controller and a buzzer, wherein the gas sensor is connected with the signal amplifier, the signal amplifier is connected with the signal converter, the signal converter is connected with the controller, and the buzzer is also connected to the controller;
a detection hole is formed in the wall of the sleeve, and a probe of the gas sensor extends into the detection hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an anticorrosive fixing device of high-rise indoor gas riser, this device is on the sleeve pipe outer wall, hug closely floor top surface department and fix and set up a backup pad, again install a pair of band steel armful card on the upper and lower both ends face of sleeve pipe, gas riser respectively, the tight face of clamp of each pair of band steel armful card and gas riser has laid the rubber packing ring, the rubber packing ring plays the anticorrosive coating of protection gas riser and even the gas riser is not worn by the band steel armful card, through the above-mentioned setting when the vertical downward effort of dead weight of gas riser, transmit perpendicularly to sleeve pipe and backup pad, and then transmit perpendicularly to the floor as the bearing point, do not have any moment, guarantee to bear the dead weight ability of gas riser; in addition, an anti-corrosion layer is filled between the gas vertical pipe and the sleeve, an anti-corrosion winding belt wraps the outer wall of the sleeve, and a protective cover is arranged above the first clamping piece to prevent sewage from corroding the gas vertical pipe along the leakage of the pipeline and ensure the safe operation of the gas pipeline.
2. The utility model relates to an anticorrosive fixing device of high-rise indoor gas riser is equipped with detection alarm system outside the sleeve pipe, and detection alarm system's gas sensor probe stretches into between sleeve pipe in the floor through-hole and the gas riser, and the suggestion user that can in time report to the police when the gas pipeline takes place to leak has the gas to leak the situation and takes place, ensures the safe use gas.
3. The utility model relates to an anticorrosive fixing device of high-rise indoor gas riser, anticorrosive coating adopt solvent-free epoxy macromolecular material, and this macromolecular material not only the corrosion protection ability is strong but also is a flame retardant material, is applicable to this kind of common naked light department in kitchen, accords with the relevant standard regulation of country.
Drawings
FIG. 1 is a schematic structural view of the high-rise indoor gas riser anticorrosion fixing device of the present invention;
FIG. 2 is a schematic structural view of another embodiment of an anticorrosion fixing device for a gas riser in a high-rise room;
FIG. 3 is a schematic view of the structure of the band steel clasping clamp of the present invention;
fig. 4 is a schematic diagram of the structure of the supporting plate of the present invention.
In the figure: 1. a protective cover; 2. a first clamping member; 3. a first rubber gasket; 4. a support plate; 5. a floor slab; 6. cement mortar; 7. an annular backing plate; 8. a second clamping member; 9. a second rubber gasket; 10. an anti-corrosion layer; 11. a sleeve; 12. a welding point; 13. an anti-corrosive wrapping tape; 14. asphalt; 15. a natural gas riser; 16. and detecting an alarm device.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
Example 1: the utility model discloses the device is shown referring to figure 1, an anticorrosive fixing device of high-rise indoor gas riser, including gas riser 15, gas riser 15 passes the through-hole that floor 5 was seted up, gas riser 15 week is upwards, it is equipped with sleeve pipe 11 to be located 5 covers of floor, the preferred structural strength of sleeve pipe 11 is big, light in weight, the steel casing pipe of low price, both ends face about sleeve pipe 11, be provided with first clamping piece 2 and second clamping piece 8 on the gas riser 15 respectively, first clamping piece 2 and second clamping piece 8 are connected gas riser 15 and floor 5 through bolt nut respectively and are fixed as an organic whole for bear the dead weight and the thermal flexible thrust of gas riser.
Specifically, as shown in fig. 3, the first clamping member 2 and the second clamping member 8 are hoop structures, and the lengths of the first clamping member 2 and the second clamping member 8 are respectively greater than the outer diameter of the sleeve pipe 11, so as to ensure that the sleeve pipe 11 is located between the first clamping member 2 and the second clamping member 8, the first clamping member 2 and the second clamping member 8 adopted in the embodiment are clamped by flat steel, preferably, the first rubber gasket 3 and the second rubber gasket 9 are respectively arranged on the inner ring clamping surfaces of the first clamping member 2 and the second clamping member 8, and the purpose of arranging the rubber gaskets is to protect an anticorrosive coating of the gas riser 15 itself on one hand and prevent the flat steel from clamping and wearing the gas riser 15 on the other hand.
As shown in figure 1, the outer wall of the sleeve 11 of the device of the utility model is fixedly provided with a support plate 4, for example, the outer wall of the sleeve 11 can be sleeved with external threads, inner screw threads are lathed in the inner hole of the supporting plate 4, the sleeve pipe 11 is connected with the supporting plate 4 through screw thread matching, or the two are directly welded into a whole through a circle of welding point 12 as shown in the embodiment, the supporting plate 4 is a flat structure, generally adopts a steel plate with 8mm, the external shape of the steel plate can be any one of rectangle, square and round, the support plate 4 of the embodiment adopts a round shape as shown in figure 4, the support plate 4 is vertical to the radial direction of the sleeve 11, the lower surface of the support plate 4 is jointed with the top surface of the floor slab 5, therefore, when the supporting plate 4 bears the dead weight of the gas vertical pipe 15, the dead weight is directly transmitted to the floor 5, and the gas vertical pipe 15 is prevented from generating deformation or even breaking due to larger displacement.
In addition, the gap between the sleeve 11 and the gas riser 15 is filled with the anti-corrosion layer 10, and the gap at the top is sealed by the asphalt 14, preferably, the anti-corrosion layer 10 is made of solvent-free epoxy polymer material, so that the anti-corrosion material has strong anti-corrosion capability and is easy to construct, and the anti-corrosion material is a flame-retardant material, is suitable for a common open fire place such as a kitchen and meets the national relevant standard, and the outer wall of the sleeve 11 is wrapped by the anti-corrosion wrapping tape 13, so that the anti-corrosion capability of the device is further improved.
Preferably, a protective cover 1 is arranged above the first clamping part 2, which protective cover 1 is intended to prevent liquid from penetrating into the gas riser 15 and the sleeve 11.
During specific implementation, the distance between the top end of the sleeve 11 and the top surface of the floor slab 5 is 40-60cm, so that liquid on the ground is prevented from directly entering the sleeve 11 and the gas vertical pipe 15, the lower half part of the sleeve 11 extends into the floor slab 5 and keeps the same thickness with the floor slab 5, namely, the bottom end of the sleeve 11 is flush with the bottom surface of the floor slab 5, firstly, the floor slab 5 is perforated, and the gas vertical pipe 15 and the sleeve 11 wrapping the anticorrosion winding belt are concentrically placed as far as possible (so that the later stage is prevented from uneven anticorrosion materials when an anticorrosion layer is filled in a gap between the gas vertical pipe 15; then, the positions of the gas vertical pipe 15 and the sleeve 11 are temporarily fixed through an auxiliary tool, and the lower end face (the bottom face of the floor slab) of the sleeve 11 and the gas vertical pipe 15 are fixed by using a second clamping piece 8, a second rubber gasket 9 and a bolt nut, wherein an anti-corrosion layer is filled between the sleeve 11 and the gas vertical pipe 15, an annular base plate 7 is arranged at the top of the second clamping piece 8 for preventing fillers from falling off, and the diameter of the annular base plate 7 is larger than that of a through hole formed in the floor slab 5; secondly, pouring an anti-corrosion layer 10 into a gap between the sleeve 11 and the gas vertical pipe 15, wherein the anti-corrosion layer 10 is made of solvent-free epoxy polymer materials and is injected from bottom to top to ensure that the gap is filled with the anti-corrosion materials, discharging air in the gap, forming a compact and uniform anti-corrosion layer after curing, further plugging the gap at the tops of the sleeve 11 and the gas vertical pipe 15 by asphalt 14 after the anti-corrosion layer is poured, preventing the sleeve 11 and the gas vertical pipe 15 from being corroded, and pouring cement mortar 6 into the gap between the sleeve 11 and the floor 5 in order to prevent the sleeve 11 and the gas vertical pipe 15 from horizontally shaking in a through hole of the floor 5; and finally, welding the support plate 4 on the outer wall of the sleeve 11 and tightly attaching to the top surface of the floor 5, fixing the upper end surface of the sleeve 11 and the gas vertical pipe 15 by using a first clamping piece 2, a second rubber gasket 3 and a bolt nut, and installing a protective cover 1 above the first clamping piece 2, wherein the protective cover 1 is used for preventing liquid from permeating to corrode the gas vertical pipe 15 and the sleeve 11.
Example 2: different from the above embodiment 1, as shown in fig. 2, this embodiment is provided with a detection alarm system 16, the detection alarm system 16 includes a gas sensor, a signal amplifier, a signal converter, a controller and a buzzer, wherein the gas sensor is connected with the signal amplifier, the signal amplifier is connected with the signal converter, the signal converter is connected with the controller, the controller is further connected with the buzzer, a detection hole is formed in the pipe wall of the casing 11, a probe of the gas sensor extends into the detection hole to enter between the casing 11 and the gas riser 15, when the gas pipeline leaks, the gas pipeline can alarm in time to prompt a user that a gas leakage situation occurs, and the safe use of gas is ensured.
The utility model transfers the bearing points of the bearing support from the wall to the floor, eliminates the moment and has reasonable arrangement of the bearing points; the flat steel clamp replaces a U-shaped bolt used in the prior art, a rubber gasket is laid between the flat steel clamp and the gas vertical pipe, the gas vertical pipe is protected, a pair of flat steel clamps are installed on the gas vertical pipe on the bottom surface of the floor, the fixing effect on the gas vertical pipe is achieved, a conventional fixing support is replaced, the application 10.2.28 requirements of town gas design specification GB50028 Chapter 10 gas are met, and the installation is simple and convenient; the anti-corrosion layer is reasonably arranged between the gas vertical pipe and the sleeve, so that the service life of the gas pipeline is prolonged; in addition, the device is provided with a detection alarm system, so that the safe use of the fuel gas by a user is ensured.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides an anticorrosive fixing device of high-rise indoor gas riser which characterized in that: the device comprises a gas vertical pipe (15), wherein the gas vertical pipe (15) penetrates through a through hole formed in a floor slab (5), a sleeve (11) is sleeved at the through hole of the floor slab (5) in the circumferential direction of the gas vertical pipe (15), a first clamping piece (2) and a second clamping piece (8) are respectively arranged on the upper end surface and the lower end surface of the sleeve (11) and the gas vertical pipe (15), and the first clamping piece (2) and the second clamping piece (8) are respectively connected and fixed with the gas vertical pipe (15) and the floor slab (5) into a whole through bolts and nuts;
a support plate (4) is fixedly arranged on the outer wall of the sleeve (11), the support plate (4) is of a flat structure, the support plate (4) is perpendicular to the radial direction of the sleeve (11), and the lower surface of the support plate (4) is attached to the top surface of the floor slab (5);
the gas pipeline is characterized in that an anti-corrosion layer (10) is filled in a gap between the sleeve (11) and the gas vertical pipe (15), the gap at the top is blocked by asphalt (14), and the outer wall of the sleeve (11) is wrapped by an anti-corrosion wrapping tape (13).
2. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: the first clamping piece (2) and the second clamping piece (8) are of hoop structures, and the lengths of the first clamping piece (2) and the second clamping piece (8) are respectively greater than the outer diameter of the sleeve (11).
3. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 2, wherein: the first clamping piece (2) and the second clamping piece (8) are flat steel clasps.
4. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 3, wherein: and the inner ring clamping surfaces of the first clamping piece (2) and the second clamping piece (8) are respectively provided with a first rubber gasket (3) and a second rubber gasket (9).
5. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: a protective cover (1) is arranged above the first clamping piece (2), and the protective cover (1) is used for preventing liquid from permeating and corroding the gas vertical pipe (15) and the sleeve (11).
6. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: the anti-corrosion layer (10) is made of solvent-free epoxy polymer material.
7. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: the bottom end of the sleeve (11) is flush with the bottom surface of the floor slab (5), and cement mortar (6) is filled in a gap between the sleeve (11) and the floor slab (5);
an annular base plate (7) is arranged at the top of the second clamping piece (8), and the diameter of the annular base plate (7) is larger than that of the floor (5) with the through hole.
8. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: the shape of the supporting plate (4) is any one of rectangle, square and circle.
9. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: the distance between the top end of the sleeve (11) and the top surface of the floor slab (5) is 40-60 cm.
10. The high-rise indoor gas riser anticorrosion fixing device as claimed in claim 1, wherein: a detection alarm system (16) is arranged outside the sleeve (11), the detection alarm system (16) comprises a gas sensor, a signal amplifier, a signal converter, a controller and a buzzer, the gas sensor is connected with the signal amplifier, the signal amplifier is connected with the signal converter, the signal converter is connected with the controller, and the buzzer is also connected on the controller;
a detection hole is formed in the wall of the sleeve (11), and a probe of the gas sensor extends into the detection hole.
CN202021559633.3U 2020-07-31 2020-07-31 Anticorrosive fixing device of high-rise indoor gas riser Active CN213420151U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021559633.3U CN213420151U (en) 2020-07-31 2020-07-31 Anticorrosive fixing device of high-rise indoor gas riser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021559633.3U CN213420151U (en) 2020-07-31 2020-07-31 Anticorrosive fixing device of high-rise indoor gas riser

Publications (1)

Publication Number Publication Date
CN213420151U true CN213420151U (en) 2021-06-11

Family

ID=76255597

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021559633.3U Active CN213420151U (en) 2020-07-31 2020-07-31 Anticorrosive fixing device of high-rise indoor gas riser

Country Status (1)

Country Link
CN (1) CN213420151U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114182922A (en) * 2021-12-09 2022-03-15 浙江海洋大学 Building rubbish machining breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114182922A (en) * 2021-12-09 2022-03-15 浙江海洋大学 Building rubbish machining breaker

Similar Documents

Publication Publication Date Title
CN103523411B (en) Horizontal buried oil storage tank and installation and construction method of matched device pipeline thereof
CN213420151U (en) Anticorrosive fixing device of high-rise indoor gas riser
CN211901864U (en) Wall-penetrating pipeline waterproof device for building construction
CN210266210U (en) Can absorb exempting from to tear open mould pipe joint of deformation
CN220888628U (en) Built-in pile convenient to splice
JPH06249390A (en) Method and device for preventing water leakage in pit of piping system
CN220203021U (en) Basement waterproof construction
CN215206540U (en) Pentane storage conveying equipment
CN220320630U (en) HDPE corrugated pipe convenient to splice
CN215568449U (en) Vertical steel pipe pile supporting device for underground pipeline
CN216007188U (en) Drainage pipe connecting part box structure for municipal works
CN209727351U (en) A kind of water pressure test equipment for high density polyethylene pipe
CN216920755U (en) Stone wall expansion joint structure with water stopping and fire preventing performances
CN217601518U (en) Sealing device for underground well chamber of direct-buried heat supply pipeline
CN211738657U (en) High stability gas introduction pipe-line system
CN216195130U (en) Outdoor fire hydrant
CN215445591U (en) Wood support heat preservation fixing device of water supply and drainage water pipe
CN214884892U (en) Various steel tile waterproofing mechanism
TWI760731B (en) Outlet joint device of reservoir
CN212001197U (en) Water stop structure for enclosure of underwater tower crane foundation
CN219889793U (en) Solar heat collector bracket
CN215763704U (en) Gas pipeline protective structure
CN206816969U (en) Water-impervious wall pipeline configuration
CN210014141U (en) Gas pipeline protection device
CN218843380U (en) Connecting device for building insulation structure integrated system and wall structure comprising same

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant