CN215908577U

CN215908577U - Prefabricated steel bushing steel insulating tube butt joint connection structure

Info

Publication number: CN215908577U
Application number: CN202122041044.7U
Authority: CN
Inventors: 徐瑞章; 赵学波; 杜中杰
Original assignee: Inner Mongolia Duolika Pipeline Engineering Co ltd
Current assignee: Inner Mongolia Duolika Pipeline Engineering Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-25
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a butt joint connecting structure of a prefabricated steel-sheathed-steel heat-insulating pipe, which comprises an outer pipe body and an inner pipe body, wherein the inner pipe body is connected in the outer pipe body in a sliding manner, a heat-insulating interlayer is fixedly arranged on the outer wall of the inner pipe body, the outer wall of the heat-insulating interlayer is abutted against the inner wall of the outer pipe body, two T-shaped grooves are formed in the inner wall of the outer pipe body, two connecting mechanisms are arranged on the outer wall of the inner pipe body, the two connecting mechanisms extend into the opposite T-shaped grooves and are connected with the opposite T-shaped grooves in a sliding manner, mounting grooves are formed in the inner walls of the two T-shaped grooves, fixing mechanisms are arranged in the two mounting grooves, the two fixing mechanisms penetrate through the opposite connecting mechanisms and are connected with the opposite connecting mechanisms in a sliding manner, and a plurality of groups of mounting mechanisms are arranged on the outer wall of the outer pipe body. The heat-insulation pipe is reasonable in structural design, can realize the sealing connection between two heat-insulation pipes, reduces the consumption of heat, improves the heat-insulation effect, and is convenient to mount and dismount the inner pipe body.

Description

Prefabricated steel bushing steel insulating tube butt joint connection structure

Technical Field

The utility model relates to the technical field of heat preservation pipes, in particular to a butt joint structure of a prefabricated steel sleeve steel heat preservation pipe.

Background

The steel-sheathed-steel heat-preservation pipe is formed by sequentially and outwards combining a working steel pipe for conveying a medium, a glass wool heat-preservation and heat-insulation layer, an aluminum foil reflection layer, a stainless steel fastening belt, a sliding guide support, an air heat-preservation layer, an outer protective steel pipe and an outer anticorrosive layer through equipment.

Among the prior art, realize the connection of two insulating tubes through the screw between the steel bushing steel insulating tube, its connection back, can have the gap unavoidably, and the heat can spill over through these gaps, influences the heat preservation effect, and through connecting rod welded connection between outer body and the interior body, its installation is comparatively complicated and be not convenient for dismantle, for this reason we have designed a prefabricated steel bushing steel insulating tube butt joint connection structure and have solved above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, two heat preservation pipes are connected through screws between steel-sheathed steel heat preservation pipes, gaps exist inevitably after the two heat preservation pipes are connected, heat can overflow through the gaps to influence the heat preservation effect, and the outer pipe body and the inner pipe body are connected through connecting rods in a welding manner, so that the installation is complex and the disassembly is inconvenient.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a prefabricated steel-sheathed-steel heat-insulation pipe butt-joint connection structure comprises an outer pipe body and an inner pipe body, wherein the inner pipe body is connected in an outer pipe body in a sliding manner, a heat-insulation interlayer is fixedly arranged on the outer wall of the inner pipe body, the outer wall of the heat-insulation interlayer is abutted against the inner wall of the outer pipe body, two T-shaped grooves are formed in the inner wall of the outer pipe body, two connecting mechanisms are arranged on the outer wall of the inner pipe body, extend into the opposite T-shaped grooves and are connected with the opposite T-shaped grooves in a sliding manner, mounting grooves are formed in the inner walls of the two T-shaped grooves, fixing mechanisms are arranged in the two mounting grooves, both the two fixing mechanisms penetrate through the opposite connecting mechanisms and are connected with the opposite connecting mechanisms in a sliding manner, a plurality of groups of mounting mechanisms are arranged on the outer pipe body, two mounting cavities are formed in the outer pipe body, compression mechanisms are arranged in the two mounting cavities, and plugging mechanisms are arranged on the side wall of the end part of the outer pipe body, the plugging mechanism extends into the two mounting cavities and is communicated with the insides of the two mounting cavities.

Preferably, the connecting mechanism comprises a connecting rod fixedly mounted on the outer wall of the inner pipe body, a connecting block with a groove formed in the end portion of the connecting rod is fixedly mounted in a penetrating mode, and the connecting block extends into the opposite T-shaped groove and is connected with the opposite T-shaped groove in a sliding mode.

Preferably, the fixing mechanism comprises a trapezoidal stop block which is slidably connected in the mounting groove, the trapezoidal stop block extends into the groove on the opposite connecting block and abuts against the inner wall of the groove, a second spring is fixedly connected between the side wall of the trapezoidal stop block and the inner side wall of the mounting groove, a pull rod is fixedly mounted on the side wall of the trapezoidal stop block, and the pull rod penetrates through the side wall of the outer pipe body and is slidably connected with the side wall of the outer pipe body.

Preferably, the installation mechanism comprises a connecting sheet fixedly installed on the outer wall of one end of the outer pipe body and provided with a connecting groove in a penetrating mode, and a fixing screw matched with the connecting sheet is fixedly installed on the outer wall of the other end of the outer pipe body.

Preferably, the compression mechanism comprises a piston which is connected in the installation cavity in a sealing and sliding manner, a first spring is fixedly connected between the side wall of the piston and the inner side wall of the installation cavity, a pressing rod is fixedly installed on the side wall of one end, far away from the first spring, of the piston, and the pressing rod penetrates through the outer tube body and is connected with the outer tube body in a sliding manner.

Preferably, the plugging mechanism comprises an annular air bag fixedly mounted on the side wall of the end face of one end of the outer tube body, two communicating tubes communicated with the inside of the annular air bag are fixedly connected to the annular air bag, and the two communicating tubes extend into the opposite mounting cavities and are communicated with the inside of the mounting cavities.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the setting of compression mechanism and shutoff mechanism, it can realize the sealing connection between two insulating tubes, reduces thermal consumption, improves the heat preservation effect.

2. Through the arrangement of the connecting mechanism and the fixing mechanism, the installation and the disassembly between the outer pipe body and the inner pipe body can be quickly realized, and the time is saved for the installation and the disassembly of operators.

In conclusion, the heat insulation pipe is reasonable in structural design, the two heat insulation pipes can be connected in a sealing mode, heat consumption is reduced, the heat insulation effect is improved, and the inner pipe body can be conveniently installed and detached.

Drawings

FIG. 1 is a schematic perspective view of a butt joint structure of a prefabricated steel-sheathed steel heat-preservation pipe provided by the utility model;

FIG. 2 is a side cross-sectional view of the outer tube body;

FIG. 3 is a front cross-sectional view of the outer tube body;

fig. 4 is an enlarged view of a structure in fig. 3.

In the figure: the device comprises an outer pipe body 1, an inner pipe body 2, a heat preservation interlayer 3, a connecting rod 4, a connecting block 5, a connecting sheet 6, a fixing screw 7, a pressing rod 8, a pull rod 9, an annular air bag 10, an installation cavity 11, a piston 12, a first spring 13, a communicating pipe 14, a T-shaped groove 15, an installation groove 16, a trapezoidal stop block 17 and a second spring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a butt joint connection structure of a prefabricated steel-sheathed steel heat-insulating pipe comprises an outer pipe body 1 and an inner pipe body 2, wherein the inner pipe body 2 is slidably connected in the outer pipe body 1, a heat-insulating interlayer 3 is fixedly arranged on the outer wall of the inner pipe body 2, the outer wall of the heat-insulating interlayer 3 abuts against the inner wall of the outer pipe body 1, two T-shaped grooves 15 are formed in the inner wall of the outer pipe body 1, two connection mechanisms are arranged on the outer wall of the inner pipe body 2, the two connection mechanisms both extend into the opposite T-shaped grooves 15 and are slidably connected with the opposite T-shaped grooves 15, each connection mechanism comprises a connection rod 4 fixedly arranged on the outer wall of the inner pipe body 2, a connection block 5 with a through groove is fixedly arranged at the end part of the connection rod 4, and the connection block 5 extends into the opposite T-shaped grooves 15 and is slidably connected with the opposite T-shaped grooves;

mounting grooves 16 are formed in the inner walls of the two T-shaped grooves 15, fixing mechanisms are arranged in the two mounting grooves 16, the two fixing mechanisms penetrate through the opposite connecting mechanisms and are in sliding connection with the opposite connecting mechanisms, each fixing mechanism comprises a trapezoidal stop 17 which is in sliding connection with the corresponding mounting groove 16, the trapezoidal stop 17 extends into the corresponding groove in the corresponding connecting block 5 and abuts against the inner wall of the corresponding groove, a second spring 18 is fixedly connected between the side wall of the trapezoidal stop 17 and the inner side wall of the mounting groove 16, a pull rod 9 is fixedly mounted on the side wall of the trapezoidal stop 17, the pull rod 9 penetrates through the side wall of the outer pipe body 1 and is in sliding connection with the outer pipe body 1, and through the arrangement of the connecting mechanisms and the fixing mechanisms, the mounting and dismounting between the outer pipe body 1 and the inner pipe body 2 can be rapidly realized, and the time is saved for mounting and dismounting of operators;

the outer wall of the outer pipe body 1 is provided with a plurality of groups of mounting mechanisms, each mounting mechanism comprises a connecting sheet 6 which is fixedly mounted on the outer wall of one end of the outer pipe body 1 and is provided with a connecting groove in a penetrating manner, and a fixing screw 7 matched with the connecting sheet 6 is fixedly mounted on the outer wall of the other end of the outer pipe body 1;

two mounting cavities 11 are formed in the outer tube body 1, compression mechanisms are arranged in the two mounting cavities 11 and comprise pistons 12 which are connected in the mounting cavities 11 in a sealing and sliding mode, first springs 13 are fixedly connected between the side walls of the pistons 12 and the inner side walls of the mounting cavities 11, pressing rods 8 are fixedly installed on the side walls of the pistons 12, which are far away from the first springs 13, at one ends of the pistons 13, and the pressing rods 8 penetrate through the outer tube body 1 and are connected with the outer tube body in a sliding mode;

the tip lateral wall of outer body 1 is equipped with shutoff mechanism, shutoff mechanism extends to in two installation cavity 11 and communicates each other rather than inside, shutoff mechanism includes annular gasbag 10 of fixed mounting on the lateral wall of 1 one end terminal surface of outer body, two communicating pipes 14 that communicate each other rather than inside fixedly connected with on the annular gasbag 10, two communicating pipes 14 all extend to in relative installation cavity 11 and communicate each other rather than inside, setting through compression mechanism and shutoff mechanism, it can realize the sealing connection between two insulating tubes, reduce thermal consumption, the effect of keeping warm is improved.

The utility model can be illustrated by the following operating modes:

when the butt joint of the heat preservation pipe is needed to be realized, firstly, an operator inserts the inner pipe body 2 into the outer pipe body 1 to enable the heat preservation interlayer 3 on the inner pipe body 2 to be abutted against the inner wall of the outer pipe body 1, when the inner pipe body 2 is completely inserted into the outer pipe body 1, the connecting block 5 on the connecting rod 4 is inserted into the opposite T-shaped groove 15, the side wall of the connecting block 5 extrudes the inclined surface of the trapezoidal stop 17 to press the trapezoidal stop 17 into the mounting groove 16, when the connecting block 5 completely slides into the T-shaped groove 15, the trapezoidal stop 17 slides into the open groove on the connecting block 5 under the action of the elastic force of the second spring 18 to be abutted against the inner wall, at the moment, the connection between the outer pipe body 1 and the inner pipe body 2 is in a stable state, then the end part of the outer pipe body 1 on which the inner pipe body 2 is installed is connected with the end part of the outer pipe body 1, the fixing screw 7 on the end part of the other outer pipe body 1 is inserted into the communicating groove on the connecting piece 6 on the outer pipe body 1, when the end parts of two outer tubes 1 are butted, the end part of another outer tube 1 extrudes the pressing rod 8 on the end part of the outer tube 1, so that the pressing rod 8 drives the piston 12 to slide in the installation cavity 11, when the piston 12 slides, the air in the installation cavity 11 is pressed into the annular air bag 10 through the communicating pipe 14, the annular air bag 10 gradually expands, when the end part of another outer tube 1 is abutted against the end part of the outer tube 1, the annular air bag 10 expands and is abutted against the end side wall of another outer tube 1, then the connecting sheet 6 is fixed with the fixing screw 7 through the nut, and then the connection of other outer tubes 1 is realized according to the method.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A prefabricated steel-sheathed-steel heat-insulation pipe butt-joint connection structure comprises an outer pipe body (1) and an inner pipe body (2), and is characterized in that the inner pipe body (2) is connected in the outer pipe body (1) in a sliding manner, a heat-insulation interlayer (3) is fixedly arranged on the outer wall of the inner pipe body (2), the outer wall of the heat-insulation interlayer (3) is abutted to the inner wall of the outer pipe body (1), two T-shaped grooves (15) are formed in the inner wall of the outer pipe body (1), two connection mechanisms are arranged on the outer wall of the inner pipe body (2), the two connection mechanisms extend into the opposite T-shaped grooves (15) and are connected with the opposite T-shaped grooves in a sliding manner, mounting grooves (16) are formed in the inner walls of the two T-shaped grooves (15), fixing mechanisms are arranged in the two mounting grooves (16), both penetrate through the opposite connection mechanisms and are connected with the opposite connection mechanisms in a sliding manner, and a plurality of groups of mounting mechanisms are arranged on the outer wall of the outer pipe body (1), two installation cavities (11) have been seted up on outer body (1), two all be equipped with compression mechanism in installation cavity (11), the tip lateral wall of outer body (1) is equipped with shutoff mechanism, shutoff mechanism extends to in two installation cavities (11) and communicates each other rather than inside.

2. The butt joint structure of the prefabricated steel-sheathed-steel heat-preservation pipe as claimed in claim 1, wherein the joint mechanism comprises a connecting rod (4) fixedly installed on the outer wall of the inner pipe body (2), a connecting block (5) with a groove opened therethrough is fixedly installed at the end of the connecting rod (4), and the connecting block (5) extends into the opposite T-shaped groove (15) and is connected with the opposite T-shaped groove in a sliding manner.

3. The butt joint structure of the prefabricated steel-sheathed-steel heat-preservation pipe as claimed in claim 2, wherein the fixing mechanism comprises a trapezoidal block (17) slidably connected in the installation groove (16), the trapezoidal block (17) extends into the groove on the opposite connection block (5) and abuts against the inner wall of the groove, a second spring (18) is fixedly connected between the side wall of the trapezoidal block (17) and the inner side wall of the installation groove (16), a pull rod (9) is fixedly installed on the side wall of the trapezoidal block (17), and the pull rod (9) penetrates through the side wall of the outer pipe body (1) and is slidably connected with the side wall.

4. The butt joint structure of the prefabricated steel-sheathed-steel heat-preservation pipe as claimed in claim 1, wherein the mounting mechanism comprises a connecting piece (6) which is fixedly arranged on the outer wall of one end of the outer pipe body (1) and is provided with a connecting groove in a penetrating way, and a fixing screw (7) matched with the connecting piece (6) is fixedly arranged on the outer wall of the other end of the outer pipe body (1).

5. The butt joint structure of the prefabricated steel-sheathed-steel heat-preservation pipe as claimed in claim 1, wherein the compression mechanism comprises a piston (12) which is connected in the installation cavity (11) in a sealing and sliding manner, a first spring (13) is fixedly connected between the side wall of the piston (12) and the inner side wall of the installation cavity (11), a pressing rod (8) is fixedly installed on the side wall of one end of the piston (12) far away from the first spring (13), and the pressing rod (8) penetrates through the outer pipe body (1) and is connected with the outer pipe body in a sliding manner.

6. The butt joint structure of the prefabricated steel-sheathed-steel heat-preservation pipe as claimed in claim 1, wherein the plugging mechanism comprises an annular air bag (10) fixedly installed on the side wall of the end face of one end of the outer pipe body (1), two communicating pipes (14) mutually communicated with the inside of the annular air bag (10) are fixedly connected to the annular air bag (10), and the two communicating pipes (14) extend into the opposite installation cavities (11) and are mutually communicated with the inside of the opposite installation cavities.