CN112693189B - Surface-enhanced composite co-extrusion outer-protection-layer rubber-plastic heat-insulation pipe structure - Google Patents

Surface-enhanced composite co-extrusion outer-protection-layer rubber-plastic heat-insulation pipe structure Download PDF

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CN112693189B
CN112693189B CN202011576678.6A CN202011576678A CN112693189B CN 112693189 B CN112693189 B CN 112693189B CN 202011576678 A CN202011576678 A CN 202011576678A CN 112693189 B CN112693189 B CN 112693189B
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rubber
plastic heat
plastic
pipe body
heat
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CN112693189A (en
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甘树森
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Hubei Hengxiang Technology Co ltd
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Hubei Hengxiang Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention discloses a surface-enhanced composite co-extrusion outer-protective-layer rubber and plastic heat-insulation pipe structure, and relates to the technical field of rubber heat-insulation pipes. The rubber-plastic heat-insulating pipe comprises a rubber-plastic heat-insulating pipe body and a protection pipe, wherein a binder is arranged between the rubber-plastic heat-insulating pipe body and the protection pipe, a connecting device extending into the inner wall of the rubber-plastic heat-insulating pipe body is fixedly arranged in the protection pipe, a marking adhesive film is arranged on the surface of the protection pipe, the connecting device comprises a connecting box, a fixing frame is fixedly arranged in the connecting box, and a connecting rod is movably arranged in the connecting box. Be fan-shaped expansion through setting up two fly leafs for the inside of the end laminating rubber and plastic heat-insulating pipe body mutually back of the body of two fly leafs is parallel state through two bracing pieces simultaneously, makes the position state of two bracing pieces can restrict the fly leaf, makes the heat-insulating pipe body of rubber and plastic strengthen with the connectivity of protection tube, has reached the effect of being convenient for to connect, so increased the practicality.

Description

Surface-enhanced composite co-extrusion outer-protection-layer rubber-plastic heat-insulation pipe structure
Technical Field
The invention relates to the technical field of rubber and plastic heat-insulating pipes, in particular to a surface-enhanced composite co-extrusion outer-protection-layer rubber and plastic heat-insulating pipe structure.
Background
The rubber-plastic heat insulating material has the excellent characteristics of softness, bending resistance, heat resistance, flame retardance, heat resistance, water resistance, low heat conductivity coefficient, shock absorption, sound absorption and the like, is simple and convenient to construct, has neat and attractive appearance, does not contain fiber dust, does not breed any harmful substances such as mould and the like, and is widely used for heat insulation and heat preservation of building central air conditioning system equipment, civil building domestic cold and hot water equipment and containers.
In the prior art, the rubber and plastic heat-insulating pipe is produced by a vulcanization and foaming process, the rubber and plastic heat-insulating pipe is soft in body and low in tear resistance, in order that workers are not easy to damage the integrity of the heat-insulating material in the construction process, an outer protective layer carapace needs to be attached to the surface of the material for protection, but a common protective shell is only fixed by a layer of adhesive, so that the adhesive can cause the conditions of cracking and falling between the protective shell and the heat-insulating material due to environmental factors and the like, and the rubber and plastic heat-insulating pipe loses the protection effect.
Disclosure of Invention
The invention provides a surface-enhanced composite co-extruded outer-protective-layer rubber-plastic heat-insulating pipe structure which has the advantages of convenience in connection and positioning and solves the problem that a protective shell and a heat-insulating material are easy to crack and fall off.
In order to realize the purposes of convenient connection and convenient positioning, the invention provides the following technical scheme: a surface-enhanced composite co-extrusion outer-protection-layer rubber-plastic heat-insulating pipe structure comprises a rubber-plastic heat-insulating pipe body and a protection pipe, wherein a binder is arranged between the rubber-plastic heat-insulating pipe body and the protection pipe, a connecting device extending into the inner wall of the rubber-plastic heat-insulating pipe body is fixedly arranged inside the protection pipe, a marking adhesive film is arranged on the surface of the protection pipe, the connecting device comprises a connecting box, a fixed frame is fixedly arranged inside the connecting box, a connecting rod is movably arranged inside the connecting box, two ends of the connecting rod are respectively provided with a movable shaft and an operating block, and the surface of the movable shaft is movably connected with two movable plates;
as a preferred technical scheme of the invention, the surfaces of the movable plates are movably provided with connecting shafts, and the surfaces of the connecting shafts are fixedly connected with supporting rods.
As a preferable technical scheme of the invention, the support rods are movably connected through a rotating shaft.
In a preferred embodiment of the present invention, a connection groove is formed in an inner wall of the rubber-plastic heat-insulating pipe body, and one end of the connection box is located inside the connection groove.
In a preferred embodiment of the present invention, the connecting groove has a shape with a large belly and a small mouth.
In a preferred embodiment of the present invention, the label film covers a surface of the junction box.
As a preferable technical scheme of the invention, the bottom of the center of the fixing frame is fixedly provided with a contact block, and the contact block is made of rubber.
As a preferable technical scheme of the invention, the surface of the movable plate is provided with a movable opening, and the fixed frame penetrates through the surface of the movable plate through the movable opening.
As a preferable technical solution of the present invention, a fixing opening is formed at the bottom of the connection box, the operation block is located inside the fixing opening, and the surface of the operation block is roughly arranged.
Compared with the prior art, the invention provides a surface-enhanced composite co-extruded outer-protective-layer rubber-plastic heat-insulating pipe structure, which has the following beneficial effects:
1. this compound outer jacket rubber and plastic heat insulation pipe structure of crowded altogether of surface reinforcing is fan-shaped expansion through setting up two fly leafs for the inside of the end laminating rubber and plastic heat insulation pipe body mutually in back of the body of two fly leafs is parallel state through two bracing pieces simultaneously, makes the position state that two bracing pieces can restrict the fly leaf, makes the heat insulation pipe body of rubber and plastic and the connectivity reinforcing of protection tube, has reached the effect of being convenient for to connect, so increased the practicality.
2. This compound outer jacket rubber and plastic heat insulation pipe structure of coextruding of surface reinforcing, conflict each other between the bottom through setting up through operation piece and connection box, make the friction location between operation piece and the connection box, rethread mark pad pasting covers the surface at the operation piece, make the mark pad pasting can avoid external object contact operation piece, the effect of sheltering from has been reached, connecting device's stability has so been guaranteed, the effect of location has been reached, the condition that fracture and drop has appeared easily between protective housing and the heat-insulating material has been avoided.
Drawings
FIG. 1 is a front cross-sectional view of the structure of the present invention;
FIG. 2 is a side cross-sectional view of the structure of the present invention;
FIG. 3 is an enlarged view of the structure at A of the present invention;
FIG. 4 is a schematic view of the construction of the junction box of the present invention;
fig. 5 is a schematic structural view of the movable plate of the present invention.
In the figure: 1. a rubber-plastic heat-insulating pipe body; 2. protecting the tube; 3. a connecting device; 4. a binder; 5. connecting grooves; 6. labeling the film; 7. a connection box; 8. a fixed mount; 9. a connecting rod; 10. a movable shaft; 11. a movable plate; 12. a connecting shaft; 13. a support bar; 14. a rotating shaft; 15. a contact block; 16. a movable opening; 17. an operation block; 18. and (4) fixing the port.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-5, the invention discloses a surface-enhanced composite co-extruded outer-protective-layer rubber-plastic heat-insulating pipe structure, which comprises a rubber-plastic heat-insulating pipe body 1 and a protective pipe 2, wherein a binder 4 is arranged between the rubber-plastic heat-insulating pipe body 1 and the protective pipe 2, a connecting device 3 extending into the inner wall of the rubber-plastic heat-insulating pipe body 1 is fixedly arranged inside the protective pipe 2, a connecting groove 5 is formed in the inner wall of the rubber-plastic heat-insulating pipe body 1, one end of the connecting box 7 is positioned inside the connecting groove 5, the connecting groove 5 is in the shape of a large belly, a marking film 6 is arranged on the surface of the protective pipe 2, the connecting device 3 comprises a connecting box 7, a fixed frame 8 is fixedly arranged inside the connecting box 7, a connecting rod 9 is movably arranged inside the connecting box 7, a movable shaft 10 and an operating block 17 are respectively arranged at two ends of the connecting rod 9, the surperficial swing joint of loose axle 10 has two fly leafs 11, the expansion mouth 16 has been seted up on the surface of fly leaf 11, mount 8 runs through the surface of fly leaf 11 through expansion mouth 16, contradict each other between the bottom through setting up operation piece 17 and connecting box 7, make friction location between operation piece 17 and the connecting box 7, rethread mark pad pasting 6 covers the surface at operation piece 17, make mark pad pasting 6 can avoid external object contact operation piece 17, the effect of sheltering from has been reached, connecting device 3's stability has so been guaranteed, the effect of location has been reached, the condition that ftractures and drop has appeared easily between protection tube 2 and the adiabatic pipe body 1 of rubber and plastic has been avoided.
The equal movable mounting in surface of fly leaf 11 has connecting axle 12, the fixed surface of connecting axle 12 is connected with bracing piece 13, through 14 swing joint of axis of rotation between the bracing piece 13, be fan-shaped expansion through setting up two fly leaves 11 for the inside of the adiabatic pipe body of back of the body laminating rubber and plastic of back of the body 11 of two fly leaves is parallel state through two bracing pieces 13 simultaneously, makes two bracing pieces 13 can restrict the position state of fly leaf 11, makes the adiabatic pipe body of rubber and plastic 1 strengthen with protection tube 2's connectivity, has reached the effect of being convenient for to connect, so increased the practicality.
Specifically, the label film 6 covers the surface of the junction box 7.
In this embodiment, the surface of the connection box 7 is shielded by the mark film 6, so that the mark film 6 can isolate the connection device 3 from the outside, thereby avoiding the direct contact between the connection device 3 and other objects and achieving the effect of shielding and positioning.
Specifically, a contact block 15 is fixedly installed at the bottom of the center of the fixing frame 8, and the contact block 15 is made of rubber.
In this embodiment, the contact block 15 is made of rubber, so that the contact block 15 can reduce the impact between the fixed frame 8 and the movable shaft 10 through its own characteristics, thereby achieving the effect of buffer protection.
Specifically, a fixing opening 18 is formed in the bottom of the connecting box 7, the operating block 17 is located inside the fixing opening 18, and the surface of the operating block 17 is roughly arranged.
In this embodiment, the surface of the operation block 17 is rough, so that the friction between the operation block 17 and the fixing port 18 is increased, the resistance between the operation block 17 and the fixing port 18 is increased, the fixing port 18 can stably limit the position of the operation block 17 without external force, and the limiting effect is achieved.
The working principle and the using process of the invention are as follows: when the rubber-plastic heat-insulating pipe is used, the adhesive 4 is coated on the outer surface of the rubber-plastic heat-insulating pipe body 1, the protection pipe 2 is correspondingly adhered to the surface of the rubber-plastic heat-insulating pipe body 1, the protection pipe 2 is preliminarily connected with the rubber-plastic heat-insulating pipe body 1 through the adhesive 4, the connecting device 3 correspondingly enters the connecting groove 5, the operation block 17 is pressed, the operation block 17 drives the movable shaft 10 to move, the two movable plates 11 are unfolded in a fan shape with the movable shaft 10 as a circle center under the blocking of the fixing frame 8, the opposite ends of the two movable plates 11 are adhered to the inner wall of the connecting groove 5, the two movable plates 11 drive the two support rods 13 to rotate, the two support rods 13 are rotated to be in a parallel state, the two support rods 13 can limit the position state of the movable plates 11, the connectivity between the rubber-plastic heat-insulating pipe body 1 and the protection pipe 2 is enhanced, and the friction limit between the operation block 17 and the fixing port 18 is realized, the position state of the connecting device 3 is fixedly limited, and the surface of the operation block 17 is covered by the mark sticking film 6, so that the mark sticking film 6 can avoid external objects from contacting the operation block 17, and the connection stability between the protection tube 2 and the rubber and plastic heat-insulating tube body 1 is ensured.
In summary, in the surface-reinforced composite co-extruded outer-protective-layer rubber-plastic heat-insulating pipe structure, the two movable plates 11 are arranged to be unfolded in a fan shape, so that the opposite ends of the two movable plates 11 are attached to the inside of the rubber-plastic heat-insulating pipe body 1, and the two support rods 13 are parallel to each other, so that the two support rods 13 can limit the position states of the movable plates 11, the connectivity between the rubber-plastic heat-insulating pipe body 1 and the protection pipe 2 is enhanced, the effect of convenient connection is achieved, and the practicability is increased; contradict each other between the bottom through setting up through operation piece 17 and connection box 7 for friction location between operation piece 17 and the connection box 7, rethread mark pad pasting 6 covers the surface at operation piece 17, make mark pad pasting 6 can avoid external object contact operation piece 17, the effect of sheltering from has been reached, so guaranteed connecting device 3's stability, the effect of location has been reached, the condition that fracture and drop appear easily between protection tube 2 and the adiabatic rubber and plastic pipe body 1 has been avoided.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (4)

1. The utility model provides a compound outer jacket rubber and plastic heat insulation pipe structure altogether of surface enhancement, includes rubber and plastic heat insulation pipe body (1) and protection tube (2), its characterized in that: be provided with binder (4) between adiabatic pipe body of rubber and plastic (1) and protection tube (2), the inside of protection tube (2) is fixed to be provided with connecting device (3) that extends to in the adiabatic pipe body of rubber and plastic (1) inner wall, the surface of protection tube (2) is provided with mark pad pasting (6), connecting device (3) are including connecting box (7), the inside fixed mounting of connecting box (7) has mount (8), the inside movable mounting of connecting box (7) has connecting rod (9), the both ends of connecting rod (9) are provided with loose axle (10) and operation piece (17) respectively, the surface swing joint of loose axle (10) has two fly leafs (11), the equal movable mounting in surface of fly leaf (11) has connecting axle (12), the surface fixed connection of connecting axle (12) has bracing piece (13), the supporting rods (13) are movably connected through a rotating shaft (14), a contact block (15) is fixedly installed at the bottom of the center of the fixing frame (8), and the contact block (15) is made of rubber;
a connecting groove (5) is formed in the inner wall of the rubber-plastic heat-insulating pipe body (1), and one end of the connecting box (7) is positioned inside the connecting groove (5); fixed mouth (18) have been seted up to the bottom of connecting box (7), operation piece (17) are located the inside of fixed mouth (18), the surface of operation piece (17) is crude setting.
2. The surface-enhanced composite co-extruded outer-layer rubber-plastic heat-insulation pipe structure as claimed in claim 1, wherein: the connecting groove (5) is shaped like a big belly and a small mouth.
3. The surface-enhanced composite co-extruded outer-layer rubber-plastic heat-insulation pipe structure as claimed in claim 1, wherein: the marking film (6) covers the surface of the connecting box (7).
4. The surface-enhanced composite co-extruded outer-layer rubber-plastic heat-insulation pipe structure as claimed in claim 1, wherein: the surface of the movable plate (11) is provided with a movable opening (16), and the fixed frame (8) penetrates through the surface of the movable plate (11) through the movable opening (16).
CN202011576678.6A 2020-12-28 2020-12-28 Surface-enhanced composite co-extrusion outer-protection-layer rubber-plastic heat-insulation pipe structure Active CN112693189B (en)

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CN101903696A (en) * 2007-12-21 2010-12-01 超科有限公司 Styrenic insulation for pipe
EP2105047A1 (en) * 2008-03-26 2009-09-30 Thomas Rotter Multi-layer heat insulating pane element
JP2009299752A (en) * 2008-06-12 2009-12-24 Sekisui Chem Co Ltd Composite pipe
CN207438035U (en) * 2017-09-18 2018-06-01 杭州本至环境科技有限公司 A kind of novel rubber plastic insulating tube
CN208202180U (en) * 2018-04-25 2018-12-07 中山市保珑橡塑制品有限公司 Novel porous rubber and plastic insulation board
CN208789187U (en) * 2018-09-05 2019-04-26 广州市广华科技有限公司 A kind of rubber and plastic clad aluminum foil thermal insulation board
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