CN215488167U

CN215488167U - Connecting device for prefabricated direct-buried heat-insulation pipe

Info

Publication number: CN215488167U
Application number: CN202121255214.5U
Authority: CN
Inventors: 付龙真
Original assignee: Hebei Shengze Pipeline Manufacturing Group Co ltd
Current assignee: Hebei Shengze Pipeline Manufacturing Group Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-01-11
Anticipated expiration: 2031-06-07

Abstract

A connecting device for a prefabricated directly-buried heat-insulating pipe comprises a connecting pipe body, a heat-insulating ring, an inner ring pipe, an elastic pad, a rotating cylinder and a limiting plate; two ends of the connecting pipe body are provided with annular grooves, and the connecting pipe body is provided with a clamping groove; the inner wall of the annular grooves is provided with an opening, and the bottom surfaces of a group of annular grooves are provided with external threads; the inner wall of the rotating cylinder is rotatably connected with the bottom surface of the other group of annular grooves, and internal threads are arranged on the inner wall of the rotating cylinder; the elastic cushion and the limiting plate are distributed in the connecting pipe body side by side, the elastic cushion is connected with the limiting plate, and a groove is formed in the end face, away from the limiting plate, of the elastic cushion; the inner ring pipe is arranged on the inner wall of the connecting pipe body; the heat preservation ring is connected with the outer wall of the connecting pipe body in a sliding mode, and a limiting assembly used for being clamped into the clamping groove in a matched mode is arranged on the heat preservation ring. The utility model is convenient for connecting pipelines, and heat-insulating treatment is carried out on the connecting position, thus improving the heat-insulating effect of the pipelines.

Description

Connecting device for prefabricated direct-buried heat-insulation pipe

Technical Field

The utility model relates to the technical field of pipelines, in particular to a connecting device for a prefabricated directly-buried heat-insulating pipe.

Background

The prefabricated overhead heat-insulating pipe is a short-term heat-insulating pipeline, is used for conveying liquid, gas and other media, and is used for heat insulation engineering of pipelines of petroleum, chemical engineering, aerospace, hot springs, military, central heating, central air conditioning, municipal administration and the like. The structure of the existing heat preservation pipe is generally realized by adopting a three-layer structure of a working pipe, a heat preservation layer and an outer protection pipe, wherein the heat preservation layer is positioned between the working pipe and the outer protection pipe. When the prefabricated overhead heat-insulating pipe is constructed on site, the working pipes need to be in butt joint connection and welded, and the heat-insulating effect of the joint is not as good as that of the inside of the heat-insulating pipe.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the technical problems in the background art, the utility model provides a connecting device for a prefabricated directly-buried heat-insulating pipe, which is convenient for connecting pipelines and insulating the joints, and improves the heat-insulating effect of the pipelines.

(II) technical scheme

The utility model provides a connecting device for a prefabricated directly-buried heat-insulating pipe, which comprises a connecting pipe body, a heat-insulating ring, an inner ring pipe, an elastic pad, a rotating cylinder and a limiting plate, wherein the connecting pipe body is provided with a connecting pipe body;

two ends of the connecting pipe body are provided with annular grooves, and the connecting pipe body is provided with a clamping groove; the inner wall of the annular grooves is provided with an opening, and the bottom surfaces of a group of annular grooves are provided with external threads; the inner wall of the rotating cylinder is rotatably connected with the bottom surface of the other group of annular grooves, and internal threads are arranged on the inner wall of the rotating cylinder; the inner threads are in threaded connection with the outer threads when the two adjacent groups of connecting pipe bodies are assembled; the elastic cushion and the limiting plate are distributed in the connecting pipe body side by side, the elastic cushion is connected with the limiting plate, and a groove is formed in the end face, away from the limiting plate, of the elastic cushion;

the inner ring pipes are arranged on the inner walls of the connecting pipe bodies, and one group of inner ring pipes are tightly pressed on the inner walls of the other group of grooves when the two adjacent groups of connecting pipe bodies are assembled;

the heat preservation ring is connected with the outer wall of the connecting pipe body in a sliding mode, and a limiting assembly used for being clamped into the clamping groove in a matched mode is arranged on the heat preservation ring.

Preferably, the limiting component comprises a connecting plate, two groups of sliding rods, two groups of springs and two groups of clamping plates; two groups of sliding chutes are arranged on the inner wall of the heat preservation ring; the two groups of clamping plates are respectively connected with the inner walls of the two groups of sliding grooves in a sliding manner, and the two groups of clamping plates are respectively connected with the two groups of sliding rods; the two groups of sliding rods penetrate through the heat preservation ring; the connecting plate is connected with the two groups of sliding rods; under the assembly state of two adjacent groups of connecting pipe bodies, two groups of clamping plates are respectively clamped in the clamping grooves of the two groups of connecting pipe bodies in a matching manner.

Preferably, each group of clamping plates and each group of sliding rods are of an integrally formed structure.

Preferably, the clamping groove is a semi-annular clamping groove; the projection shape of the sliding chute is a semi-ring shape; the cardboard is the semi-annular board, and the cardboard cooperation card is gone into in the draw-in groove.

Preferably, the device further comprises a sealing gasket; the sealing washer is connected with the peripheral surface of the inner ring pipe in a sliding way.

Preferably, a waterproof layer is arranged outside the connecting pipe body.

Preferably, an anti-slip layer is arranged outside the rotating cylinder.

Preferably, the inner ring pipe is provided with a sealing gasket.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

when the elastic cushion is used, an installer inserts the inner ring pipes of one group of connecting pipe bodies into the grooves in a matched mode, rotates the rotating cylinder, enables the rotating cylinder to be in threaded connection with the other group of connecting pipe bodies, and presses the elastic cushion on the limiting plate; the heat-insulation rings are moved, and are fixed on the two adjacent groups of connecting pipe bodies through the limiting assemblies, and the joints of the two groups of connecting pipe bodies are sealed and insulated, so that the heat-insulation effect after the two groups of connecting pipe bodies are connected is ensured; the utility model is convenient for connecting pipelines, and heat-insulating treatment is carried out on the connecting position, thus improving the heat-insulating effect of the pipelines.

Drawings

Fig. 1 is an assembly view of a connecting device for prefabricated direct-buried heat-preservation pipes according to the present invention.

Fig. 2 and 3 are sectional views illustrating the assembly of a connecting device for prefabricated direct-buried thermal insulation pipes according to the present invention.

Fig. 4 is a partially enlarged schematic view of a portion a of fig. 3.

Fig. 5 is a schematic perspective view of a connecting pipe body in the connecting device for prefabricated direct-buried thermal insulation pipes according to the present invention.

Reference numerals: 1. a connecting pipe body; 11. an external thread; 101. a card slot; 102. an annular groove; 2. a heat preservation ring; 201. a chute; 3. a connecting plate; 4. a slide bar; 5. an inner ring pipe; 6. an elastic pad; 601. a groove; 7. a rotating cylinder; 8. a sealing gasket; 10. a limiting plate; 12. a spring; 13. and (4) clamping the board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 5, the connection device for the prefabricated directly-buried thermal insulation pipe provided by the utility model comprises a connection pipe body 1, a thermal insulation ring 2, an inner ring pipe 5, an elastic pad 6, a rotary cylinder 7 and a limiting plate 10;

two ends of the connecting pipe body 1 are provided with annular grooves 102, and the connecting pipe body 1 is provided with a clamping groove 101; the inner wall of the annular grooves 102 is provided with an opening, and the bottom surfaces of a group of annular grooves 102 are provided with external threads 11; the inner wall of the rotating cylinder 7 is rotatably connected with the bottom surface of the other group of annular grooves 102, and inner threads are arranged on the inner wall of the rotating cylinder 7; in the assembling state of the two adjacent groups of connecting pipe bodies 1, the internal threads are in threaded connection with the external threads; the elastic cushion 6 and the limiting plate 10 are distributed in the connecting pipe body 1 side by side, the elastic cushion 6 is connected with the limiting plate 10, and a groove 601 is arranged on the end face, away from the limiting plate 10, of the elastic cushion 6;

the inner ring pipes 5 are arranged on the inner walls of the connecting pipe bodies 1, and one group of the inner ring pipes 5 tightly presses the inner walls of the other group of the grooves 601 when the two adjacent groups of the connecting pipe bodies 1 are assembled;

the heat preservation ring 2 is connected with the outer wall of the connecting pipe body 1 in a sliding mode, and the heat preservation ring 2 is provided with a limiting assembly which is used for being clamped into the clamping groove 101 in a matched mode.

When the connecting pipe connecting device is used, an installer inserts the inner ring pipes 5 of one group of connecting pipe bodies 1 into the grooves 601 in a matching manner, rotates the rotating cylinder 7, enables the rotating cylinder 7 to be in threaded connection with the other group of connecting pipe bodies 1, and presses the elastic pad 6 on the limiting plate 10; the heat preservation ring 2 is moved, the heat preservation ring 2 is fixed on the two adjacent groups of connecting pipe bodies 1 through the limiting assembly, the connecting part of the two groups of connecting pipe bodies 1 is sealed and insulated, and the heat preservation effect after the two groups of connecting pipe bodies 1 are connected is guaranteed; the utility model is convenient for connecting pipelines, and heat-insulating treatment is carried out on the connecting position, thus improving the heat-insulating effect of the pipelines.

In an alternative embodiment, the limiting component comprises a connecting plate 3, two sets of sliding rods 4, two sets of springs 12 and two sets of clamping plates 13; two groups of sliding grooves 201 are arranged on the inner wall of the heat preservation ring 2; the two groups of clamping plates 13 are respectively connected with the inner walls of the two groups of sliding grooves 201 in a sliding manner, and the two groups of clamping plates 13 are respectively connected with the two groups of sliding rods 4; the two groups of sliding rods 4 penetrate through the heat preservation ring 2; the connecting plate 3 is connected with two groups of sliding rods 4; when two adjacent groups of connecting pipe bodies 1 are assembled, two groups of clamping plates 13 are respectively clamped in the clamping grooves 101 of the two groups of connecting pipe bodies 1 in a matched manner; pulling connecting plate 3, two sets of slide bars 4 and two sets of cardboard 13 all upwards move, compress two sets of springs 12, remove heat preservation ring 2 for two sets of cardboard 13 cooperate the card to go into draw-in groove 101 on two sets of adjacent connecting pipe bodies 1 in, fix heat preservation ring 2.

In an alternative embodiment, each set of catch plates 13 is of integral construction with each set of slide bars 4; the connection between every group cardboard 13 of integrated into one piece and every group slide bar 4 is more firm, is favorable to prolonging the life of every group cardboard 13 and every group slide bar 4.

In an alternative embodiment, card slot 101 is a half-ring card slot; the projection shape of the chute 201 is a semi-ring shape; the clamping plate 13 is a semi-annular plate, and the clamping plate 13 is clamped in the clamping groove 101 in a matching manner; the clamping plate 13 is conveniently matched and clamped into the clamping groove 101, so that the matching is more stable.

In an alternative embodiment, a sealing gasket 8 is also included; the sealing washer 8 is connected with the peripheral surface of the inner ring pipe 5 in a sliding way; the heat preservation effect of the inner ring pipe 5 is improved.

In an optional embodiment, a waterproof layer is arranged outside the connecting pipe body 1; avoid in the rainwater infiltration connecting pipe body 1, protect internal connection structure.

In an alternative embodiment, the rotating cylinder 7 is externally provided with an anti-slip layer; the slipping phenomenon is avoided when the rotary cylinder 7 is rotated.

In an alternative embodiment, the inner annular tube 5 is provided with a sealing gasket; when two adjacent groups of connecting pipe bodies 1 are assembled, the sealing gasket is tightly pressed between the rotating cylinder 7 and the inner wall of the annular groove 102 of the other group of connecting pipe bodies 1; the tightness of the connection between the two groups of connecting pipe bodies 1 is ensured.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A connecting device for a prefabricated directly-buried heat-insulating pipe is characterized by comprising a connecting pipe body (1), a heat-insulating ring (2), an inner ring pipe (5), an elastic cushion (6), a rotating cylinder (7) and a limiting plate (10);

two ends of the connecting pipe body (1) are provided with annular grooves (102), and the connecting pipe body (1) is provided with a clamping groove (101); the inner wall of the annular grooves (102) is provided with an opening, and the bottom surfaces of a group of annular grooves (102) are provided with external threads (11); the inner wall of the rotating cylinder (7) is rotatably connected with the bottom surface of the other group of annular grooves (102), and internal threads are arranged on the inner wall of the rotating cylinder (7); the inner threads are in threaded connection with the outer threads when the two adjacent groups of connecting pipe bodies (1) are assembled; the elastic cushion (6) and the limiting plate (10) are distributed in the connecting pipe body (1) side by side, the elastic cushion (6) is connected with the limiting plate (10), and a groove (601) is formed in the end face, far away from the limiting plate (10), of the elastic cushion (6);

the inner ring pipes (5) are arranged on the inner walls of the connecting pipe bodies (1), and one group of inner ring pipes (5) tightly presses the inner walls of the other group of grooves (601) when two adjacent groups of connecting pipe bodies (1) are assembled;

the heat preservation ring (2) is connected with the outer wall of the connecting pipe body (1) in a sliding mode, and a limiting assembly used for being clamped into the clamping groove (101) in a matched mode is arranged on the heat preservation ring (2).

2. The connecting device for the prefabricated direct-burial thermal insulation pipe as claimed in claim 1, wherein the limiting assembly comprises a connecting plate (3), two sets of sliding rods (4), two sets of springs (12) and two sets of clamping plates (13); two groups of sliding grooves (201) are arranged on the inner wall of the heat-insulating ring (2); the two groups of clamping plates (13) are respectively connected with the inner walls of the two groups of sliding grooves (201) in a sliding manner, and the two groups of clamping plates (13) are respectively connected with the two groups of sliding rods (4); the two groups of sliding rods (4) penetrate through the heat-insulating ring (2); the connecting plate (3) is connected with the two groups of sliding rods (4); when two adjacent groups of connecting pipe bodies (1) are assembled, two groups of clamping plates (13) are respectively clamped in clamping grooves (101) of the two groups of connecting pipe bodies (1) in a matched manner.

3. A connecting device for prefabricated direct-burried thermal insulation pipe according to claim 2, characterized in that each set of snap-gauge boards (13) and each set of sliding rods (4) are of an integral structure.

4. The connecting device for prefabricated direct-burried thermal insulation pipe according to claim 1, characterized in that the clamping groove (101) is a semi-annular clamping groove; the projection shape of the sliding chute (201) is a semi-ring shape; the clamping plate (13) is a semi-annular plate, and the clamping plate (13) is matched and clamped in the clamping groove (101).

5. A joining device for prefabricated direct burial thermal insulation pipes as claimed in claim 1, further comprising a sealing gasket (8); the sealing washer (8) is connected with the peripheral surface of the inner ring pipe (5) in a sliding way.

6. The connecting device for prefabricated direct-burried thermal insulation pipe according to claim 1, characterized in that a waterproof layer is arranged outside the connecting pipe body (1).

7. The connecting device for prefabricated direct-burried thermal insulation pipe according to claim 1, characterized in that the rotating cylinder (7) is externally provided with an anti-slip layer.

8. A connection device for prefabricated direct-burried thermal insulation pipe according to claim 1, characterized in that the inner collar (5) is provided with a sealing gasket.