CN113663886A - Heating device for steel-plastic composite pipe - Google Patents
Heating device for steel-plastic composite pipe Download PDFInfo
- Publication number
- CN113663886A CN113663886A CN202110983383.9A CN202110983383A CN113663886A CN 113663886 A CN113663886 A CN 113663886A CN 202110983383 A CN202110983383 A CN 202110983383A CN 113663886 A CN113663886 A CN 113663886A
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- steel
- heating
- steel pipe
- roller group
- plastic composite
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 84
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 123
- 239000010959 steel Substances 0.000 claims abstract description 123
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- -1 acrylic ester Chemical class 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
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- Heat Treatment Of Articles (AREA)
Abstract
The application discloses a heating device for a steel-plastic composite pipe, which comprises a rack, wherein a heating barrel for accommodating a heated steel pipe and a power distribution control box for controlling the temperature of the heating barrel are arranged on the rack, the heating barrel consists of a heat insulation groove and a heating groove which are hinged with each other and can be opened and closed, and the heating groove is electrically connected with the power distribution control box; and the frame is also provided with a first roller group and a second roller group which are used for supporting the steel pipes and a driving mechanism for driving the steel pipes to rotate, wherein the first roller group and the second roller group are respectively arranged at two ends of the heating cylinder. The steel tube heating device is simple in structure, reliable in function and stable in performance due to the adoption of a pure mechanical structure, and can heat the steel tube while rotating, so that the steel tube is heated uniformly and quickly; meanwhile, the steel pipes with various calibers can be fixed by the aid of the originally-created anti-falling mechanism which is added in an adaptive mode.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to the technical field of composite steel pipes and processing devices thereof, and particularly relates to a heating device for a steel-plastic composite pipe.
Background
The composite steel pipe is also called steel-plastic composite pipe, and usually uses seamless steel pipe and welded steel pipe as base pipe, and its inner wall is coated with high-adhesion, corrosion-resistant and food-grade sanitary polyethylene powder paint or epoxy resin paint. The water-supply galvanized internal plastic-coated composite steel pipe manufactured by adopting the processes of pretreatment, preheating, internal coating, leveling and post-treatment is an upgraded product of the traditional galvanized pipe, and the steel-plastic composite pipe is generally connected by screw threads, grooves and flanges.
The existing lining process of the steel-plastic composite pipe can be roughly divided into two types, namely spraying and hot melting lining, but the essential requirement of any processing process is that the processed steel pipe base pipe needs to be heated to realize the bonding between the lining and the base pipe to form an integral structure.
Disclosure of Invention
In order to solve the problem that the base pipe needs to be heated in the manufacturing process of the existing steel-plastic composite pipe, the application provides a heating device for the steel-plastic composite pipe, which is used for realizing rapid heating of the steel pipes with various existing calibers and realizing the connection between the lining and the base pipe.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
a heating device for a steel-plastic composite pipe comprises a rack, wherein a heating cylinder for accommodating a heated steel pipe and a power distribution control box for controlling the temperature of the heating cylinder are arranged on the rack, the heating cylinder consists of a heat preservation groove and a heating groove which are hinged with each other and can be opened and closed, and the heating groove is electrically connected with the power distribution control box; and the frame is also provided with a first roller group and a second roller group which are used for supporting the steel pipes and a driving mechanism for driving the steel pipes to rotate, wherein the first roller group and the second roller group are respectively arranged at two ends of the heating cylinder.
The working principle and the steps are as follows:
the invention has the advantages of simple operation and compact structural design, and can realize single-person operation in the whole heating process on the premise that the steel pipe can be hoisted.
When the steel pipe needs to be heated, the heating groove is firstly opened, and the steel pipe needing to be heated is lifted and placed on the first roller set and the second roller set.
Secondly, close the heating groove lid on the heat preservation groove and firmly lock or fix for whole heating cylinder is established the whole covers of establishing of steel pipe.
And finally, manually rotating the steel pipe, checking whether the steel pipe interferes with the inner wall of the heating cylinder, and ensuring that a gap is reserved between the steel pipe and the inner wall of the heating cylinder. If the steel pipe is in interference contact with the inner wall of the heating cylinder, even the heating groove can not be completely covered, in this case, the fixing bolt between the heat preservation groove and the pricing needs to be adjusted to change the height relationship between the heat preservation groove and the rack until the interference phenomenon between the steel pipe and the heating cylinder is eliminated finally. It should be noted that there are various structures for adjusting the relative position relationship through the fixing bolt in the prior art, which are commonly used in the art, and specifically include a washer or a spring, or a double nut structure, and any one of the prior art may be adopted in the present application. The driving device drives the steel pipe through the existing driving mode, so that the steel pipe is heated more uniformly, and the phenomenon that the time required for the whole steel pipe to reach the preset temperature is too long due to the fact that one side of the steel pipe is heated is avoided.
After eliminating interference phenomenon, then can open the distribution control box and heat the steel pipe, reach and predetermine the temperature after, then can carry out the spraying of inside lining or the operation is established to the cover. The specific manner of installation of the liner is the subsequent process after the heating is completed, and is not related to the technology claimed in the present application, and is not described in detail herein.
In order to realize reliable support of the steel pipe, preferably, the first roller set and the second roller set have the same structure and each include two freely rotatable rollers which are installed in parallel.
In order to realize reliable driving of the steel pipe and enable the steel pipe to continuously rotate in the heating process and be heated more uniformly, preferably, the driving mechanism comprises a driving motor and a speed reducer, and the speed reducer is in driving connection with at least one roller or the rollers arranged on the same side; and an acrylic ester rubber layer is arranged on the surface of any roller. Because the heating cylinder in this application only installs the heating tank in the top and has the heating function, can be heated at first in the top of steel pipe so, although the steel pipe itself has good heat-conducting capacity, under the condition of extension heating and heat preservation time, equally can reach preset temperature, but the heating time of steel pipe can be compared in the mode of rotatory heating slower like this.
In order to realize uniform heating in rotation, the invention also provides another structural design for driving the steel pipe to rotate, and particularly, the driving mechanism comprises a driver arranged on the rack and a belt for driving and connecting the driver and the steel pipe.
In order to guarantee that the steel pipe can not take place axial displacement because of rotating in whole heating process, preferably, this application still includes the restriction steel pipe axial displacement's anti-disengaging mechanism, anti-disengaging mechanism is including setting up the baffle that is used for blockking the steel pipe axial and slides in frame one end to and can dismantle fixed connection and be in L type support on the frame other end articulates the thread bush on L type support, and threaded connection is in lead screw in the thread bush, the one end of lead screw is rotated and is connected with and is used for the restriction the gliding cone of steel pipe, lead screw other end threaded connection has first locker.
The working principle is as follows:
the baffle and the L-shaped support are positioned at two ends of the rack, so that the limitation and the position restraint on the steel pipe are realized, and the baffle is fixedly arranged on the rack and used for blocking the movement of the steel pipe. When a steel pipe needs to be placed, the threaded sleeve needs to be turned upwards firstly so that the steel pipe can pass through the lower part of the L-shaped support, when one end of the steel pipe abuts against the baffle, the threaded sleeve is turned downwards so that the screw rod stops when being in a horizontal state or being in a coaxial state with the steel pipe, and meanwhile, the relative position between the screw rod and the threaded sleeve is adjusted until the conical body extends into the steel pipe and abuts against the steel pipe; and finally, locking the first locking device to enable the conical body to be always positioned in the steel pipe, so that the steel pipe is prevented from moving. Because be connected for rotating between cone and the lead screw, the normal work that whole anti-disengaging mechanism can not all be influenced with the synchronous or asynchronous rotation of steel pipe in cone when consequently the steel pipe rotates. The conical body can meet the fixation of steel pipes with different calibers and is not limited to the fixation of one or more steel pipes.
Further preferably, a second locker for pressing the threaded sleeve and the L-shaped bracket is further arranged on the L-shaped bracket. The second locker is used for fixing the relative position of the L-shaped bracket and the threaded sleeve so as to keep the angle of the screw rod unchanged.
Has the advantages that:
the steel tube heating device is simple in structure, reliable in function and stable in performance due to the adoption of a pure mechanical structure, and can heat the steel tube while rotating, so that the steel tube is heated uniformly and quickly; meanwhile, the steel pipes with various calibers can be fixed by the aid of the originally-created anti-falling mechanism which is added in an adaptive mode.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is an isometric view of a heating cartridge of the present invention in an open condition.
Fig. 2 is an isometric view of the heating cartridge in a closed state.
Fig. 3 is an enlarged view of the structure of region a in fig. 2.
Fig. 4 is a front view of fig. 2.
In the figure: 1-a frame; 2-a distribution control box; 3-a heat preservation groove; 4-a heating tank; 5-a first roller group; 6-a second roller group; 7-a baffle plate; 8-an anti-falling mechanism; 81-L shaped stents; 82-threaded sleeve; 83-a screw rod; 84-a cone; 85-a first lock; 86-a second locker; 9-a belt; 10-a driver; 11-steel pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
the heating device for the steel-plastic composite pipe shown in fig. 1-4 comprises a frame 1, wherein a heating cylinder for accommodating a heated steel pipe 11 and a power distribution control box 2 for controlling the temperature of the heating cylinder are mounted on the frame 1, the heating cylinder is composed of a heat preservation groove 3 and a heating groove 4 which are hinged to each other and can be opened and closed, and the heating groove 4 is electrically connected with the power distribution control box 2; the machine frame 1 is also provided with a first roller set 5 and a second roller set 6 which are used for supporting the steel pipe 11 and a driving mechanism which drives the steel pipe 11 to rotate, wherein the first roller set and the second roller set are respectively arranged at two ends of the heating cylinder.
The working principle and the steps are as follows:
the invention has the advantages of simple operation and compact structural design, and can realize single-person operation in the whole heating process on the premise that the steel pipe 11 can be hoisted.
When the steel pipe 11 needs to be heated, the heating tank 4 is first opened, and the steel pipe 11 to be heated is lifted and placed on the first roller set 5 and the second roller set 6.
Secondly, cover heating groove 4 and close on heat preservation groove 3 and firm lock or fixed for whole heating cylinder is established the whole cover with steel pipe 11 cover.
And finally, manually rotating the steel pipe 11, checking whether the steel pipe 11 interferes with the inner wall of the heating cylinder, and ensuring that a gap is reserved between the steel pipe 11 and the inner wall of the heating cylinder. If the steel pipe 11 is in interference contact with the inner wall of the heating cylinder, even the heating groove 4 cannot be completely covered, in this case, the fixing bolt between the heat-preserving groove 3 and the pricing 1 needs to be adjusted to change the height relationship between the heat-preserving groove 3 and the rack 1, and finally the interference phenomenon between the steel pipe 11 and the heating cylinder is eliminated. It should be noted that there are various structures for adjusting the relative position relationship through the fixing bolt in the prior art, which are commonly used in the art, and specifically include a washer or a spring, or a double nut structure, and any one of the prior art may be adopted in the present application. The driving device drives the steel pipe 11 in the existing driving mode, so that the steel pipe 11 is heated more uniformly, and the phenomenon that the time required for the whole steel pipe 11 to reach the preset temperature is too long due to the fact that one side of the steel pipe is heated is avoided.
After eliminating interference phenomenon, then can open distribution control box 2 and heat steel pipe 11, reach and predetermine the temperature after, then can carry out the spraying of inside lining or the operation of establishing of cover. The specific manner of installation of the liner is the subsequent process after the heating is completed, and is not related to the technology claimed in the present application, and is not described in detail herein.
Example 2:
the embodiment is to optimize the function on the basis of the structure and the principle of the embodiment 1, so that the structural stability, the heating efficiency and the like are further improved, and the structure is further improved, specifically as follows:
in order to realize reliable support of the steel tube 11, the first roller set 5 and the second roller set 6 have the same structure and both comprise two freely rotatable rollers which are installed in parallel.
In order to realize reliable driving of the steel pipe 11, so that the steel pipe 11 can continuously rotate in the heating process and is heated more uniformly, the embodiment provides two driving structures, wherein the driving mechanism comprises a driving motor and a speed reducer, the speed reducer is in driving connection with at least one roller or the rollers arranged on the same side, and the speed reducer is not shown in the figure; and an acrylic ester rubber layer is arranged on the surface of any roller. The rotation that will realize steel pipe 11 only need drive a gyro wheel can, but this kind of mode is higher to the contact friction power requirement of gyro wheel as the drive wheel with steel pipe 11, because steel pipe 11's length is longer, the phenomenon of skidding appears in only one end atress easily, make to produce relative slip and increase the friction of gyro wheel between steel pipe 11 and the gyro wheel of being responsible for the drive, nevertheless from whether can realizing the drive, realize that this angle of even heating can satisfy the demand completely, the preferred mode can increase as the area of contact of driven gyro wheel and steel pipe 11. Of course, in order to overcome the imbalance caused by the single roller driving, the two rollers installed on the same side of the steel pipe 11 can be driven synchronously, so that the two ends of the steel pipe 11 can both be subjected to the action of uniform friction force, and the steel pipe 11 can rotate stably.
Since the heating cylinder in the present application only has the heating function of the heating tank 4 installed above, the steel pipe 11 is heated first, and although the steel pipe 11 itself has good heat conductivity and can reach the preset temperature under the condition of prolonging the heating and heat preservation time, the heating time of the steel pipe 11 is slower than that of the rotary heating mode.
Example 3:
in order to realize uniform heating in rotation, the invention provides another structure design for driving the steel tube 11 to rotate based on embodiment 1, specifically, the driving mechanism comprises a driver 10 mounted on the frame 1 and a belt 9 for driving and connecting the driver 10 and the steel tube 11. The driving force from the driver 10 is transmitted through the belt 9 to drive the steel pipe 11 to rotate, the belt 9 preferably adopts high temperature resistant rubber to further prolong the service life of the belt 9, although the position where the belt 9 is in contact with the steel pipe 11 is not a directly heated area, the temperature of the belt is significantly lower than the preset temperature, based on the heat transmission principle, the steel pipe 11 also has high temperature, and therefore the heat resistance of the belt 9 is crucial to the normal service life of the belt.
Example 4:
referring to fig. 1-4, in order to ensure that the steel tube 11 does not axially move due to rotation in the whole heating process, preferably, the present application further includes an anti-slip mechanism 8 for limiting the axial movement of the steel tube 11, where the anti-slip mechanism 8 includes a baffle 7 disposed at one end of the frame 1 for blocking the axial sliding of the steel tube 11, an L-shaped bracket 81 detachably and fixedly connected to the other end of the frame 1, a threaded sleeve 82 hinged to the L-shaped bracket 81, and a screw rod 83 screwed in the threaded sleeve 82, one end of the screw rod 83 is rotatably connected with a conical body 84 for limiting the sliding of the steel tube 11, and the other end of the screw rod 83 is screwed with a first locking device 85.
The working principle is as follows:
the baffle 7 and the L-shaped support 81 are positioned at two ends of the rack 1, so that the limitation and position restriction of the steel pipe 11 are realized, wherein the baffle 7 is fixedly arranged on the rack 1 and used for blocking the movement of the steel pipe 1. When the steel pipe 11 needs to be placed, the threaded sleeve 82 needs to be turned upwards firstly, so that the steel pipe 11 can pass through the lower part of the L-shaped bracket 81, when one end of the steel pipe 11 abuts against the baffle 7, the threaded sleeve 82 is turned downwards, so that the screw rod 83 is stopped when being in a horizontal state or a coaxial state with the steel pipe 11, and meanwhile, the relative position between the screw rod 83 and the threaded sleeve 82 is adjusted until the conical body 84 extends into the steel pipe 11 and abuts against the steel pipe; finally, the first lock 85 is locked so that the cone 84 is always positioned in the steel pipe 11, thereby preventing the steel pipe 11 from moving. Because the cone 84 is rotatably connected with the screw 83, the cone 84 and the steel pipe 11 can rotate synchronously or asynchronously without affecting the normal operation of the whole anti-falling mechanism 8 when the steel pipe 11 rotates. The taper 84 can be used to fix steel pipes 11 of different diameters, and is not limited to fixing one or more types of steel pipes 11.
In this embodiment, the L-shaped bracket 81 is further provided with a second locking device 86 for pressing the threaded sleeve 82 and the L-shaped bracket 81. The second locker 86 functions to fix the relative position of the L-shaped bracket 81 and the threaded sleeve 82 to maintain the angle of the lead screw 83 constant.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A heating device for steel-plastic composite pipes comprises a machine frame (1), and is characterized in that: the heating device is characterized in that a heating cylinder for accommodating a heated steel pipe (11) and a power distribution control box (2) for controlling the temperature of the heating cylinder are arranged on the rack (1), the heating cylinder is composed of a heat insulation groove (3) and a heating groove (4) which are hinged to each other and can be opened and closed, and the heating groove (4) is electrically connected with the power distribution control box (2); the machine frame (1) is also provided with a first roller group (5) and a second roller group (6) which are used for supporting the steel pipe (11) and a driving mechanism for driving the steel pipe (11) to rotate, wherein the first roller group and the second roller group are respectively arranged at two ends of the heating cylinder.
2. A heating apparatus for a steel-plastic composite pipe according to claim 1, wherein: the first roller group (5) and the second roller group (6) have the same structure and respectively comprise two rollers which are arranged in parallel and can rotate freely.
3. A heating apparatus for a steel-plastic composite pipe according to claim 2, wherein: the driving mechanism comprises a driving motor and a speed reducer, and the speed reducer is in driving connection with at least one roller or the rollers arranged on the same side; and an acrylic ester rubber layer is arranged on the surface of any roller.
4. A heating apparatus for a steel-plastic composite pipe according to claim 1, wherein: the driving mechanism comprises a driver (10) arranged on the frame (1) and a belt (9) which is in driving connection with the driver (10) and the steel pipe (11).
5. A heating apparatus for a steel-plastic composite pipe according to any one of claims 1 to 4, wherein: still including the restriction anti-disengaging mechanism (8) of steel pipe (11) axial displacement, anti-disengaging mechanism (8) are including setting up baffle (7) that are used for blockking steel pipe (11) axial slippage in frame (1) one end, and can dismantle fixed connection and be in L type support (81) on the frame (1) other end, articulate threaded sleeve (82) on L type support (81), and threaded connection be in lead screw (83) in threaded sleeve (82), the one end of lead screw (83) is rotated and is connected with and is used for the restriction gliding conical body (84) of steel pipe (11), and the threaded connection of lead screw (83) other end has first locker (85).
6. A heating device for a steel-plastic composite pipe according to claim 5, characterized in that: and a second locker (86) used for pressing the threaded sleeve (82) and the L-shaped bracket (81) is also arranged on the L-shaped bracket (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983383.9A CN113663886A (en) | 2021-08-25 | 2021-08-25 | Heating device for steel-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983383.9A CN113663886A (en) | 2021-08-25 | 2021-08-25 | Heating device for steel-plastic composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113663886A true CN113663886A (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110983383.9A Pending CN113663886A (en) | 2021-08-25 | 2021-08-25 | Heating device for steel-plastic composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113663886A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355040A (en) * | 2019-07-10 | 2019-10-22 | 中国十七冶集团有限公司 | A kind of steel pipe mopping device and its application method |
| CN209521174U (en) * | 2018-12-29 | 2019-10-22 | 华润燃气郑州工程建设有限公司 | A kind of small-bore pipeline thermal shrinkable sleeve heater |
| CN209954235U (en) * | 2019-02-18 | 2020-01-17 | 绍兴康健材料科技有限公司 | Convenient nonrust steel pipe anchor clamps that remove |
| CN110740531A (en) * | 2019-10-29 | 2020-01-31 | 马鞍山思哲知识产权服务有限公司 | Multi-pipe synchronous heating device |
| CN210501508U (en) * | 2019-07-24 | 2020-05-12 | 安徽海通塑胶科技有限公司 | Steel-plastic composite pipe heating device |
| CN210753362U (en) * | 2019-09-30 | 2020-06-16 | 天津鑫泽昊钢塑复合管有限公司 | Steel-plastic composite pipe bracket |
| CN211194663U (en) * | 2019-12-05 | 2020-08-07 | 天津隆盛丰管道科技有限公司 | Plastic-coated equipment for inner wall of steel pipe |
| CN211989516U (en) * | 2019-12-05 | 2020-11-24 | 洛阳巨电金属热加工设备有限公司 | Movable heating device of large-scale steel pipe |
-
2021
- 2021-08-25 CN CN202110983383.9A patent/CN113663886A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209521174U (en) * | 2018-12-29 | 2019-10-22 | 华润燃气郑州工程建设有限公司 | A kind of small-bore pipeline thermal shrinkable sleeve heater |
| CN209954235U (en) * | 2019-02-18 | 2020-01-17 | 绍兴康健材料科技有限公司 | Convenient nonrust steel pipe anchor clamps that remove |
| CN110355040A (en) * | 2019-07-10 | 2019-10-22 | 中国十七冶集团有限公司 | A kind of steel pipe mopping device and its application method |
| CN210501508U (en) * | 2019-07-24 | 2020-05-12 | 安徽海通塑胶科技有限公司 | Steel-plastic composite pipe heating device |
| CN210753362U (en) * | 2019-09-30 | 2020-06-16 | 天津鑫泽昊钢塑复合管有限公司 | Steel-plastic composite pipe bracket |
| CN110740531A (en) * | 2019-10-29 | 2020-01-31 | 马鞍山思哲知识产权服务有限公司 | Multi-pipe synchronous heating device |
| CN211194663U (en) * | 2019-12-05 | 2020-08-07 | 天津隆盛丰管道科技有限公司 | Plastic-coated equipment for inner wall of steel pipe |
| CN211989516U (en) * | 2019-12-05 | 2020-11-24 | 洛阳巨电金属热加工设备有限公司 | Movable heating device of large-scale steel pipe |
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Application publication date: 20211119 |
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| RJ01 | Rejection of invention patent application after publication |