A pipeline connector used in the continuous production of prefabricated direct-buried heat-insulated pipelines

Abstract

The utility model belongs to the technical field of the heat preservation pipe, specifically is a kind of pipeline connector used in the continuous production of prefabricated direct-buried heat preservation pipeline, including heat preservation pipe body;Still include: receiving frame, it is set between two heat preservation pipe bodies, and the both ends of heat preservation pipe body are all set with the receiving slot for slider movement, the one end of the slider is fixedly installed with the connecting plate of "U" character shape, the top and bottom of the connecting plate are all connected with threaded rod;The structure of the above design makes that connector can be in two heat preservation pipe bodies, to drive heat preservation pipe body in continuous production, can be moved by the action of connector auxiliary driving. And the connector designed in the application is in the heat preservation pipe body, when heat preservation pipe body is being sprayed, the outer surface of heat preservation pipe body is not shielded, so that heat preservation pipe body can be directly sprayed, additional supplementary spraying operation is not needed, avoid affecting the working efficiency of heat preservation pipe body.

Description

Technical Field

[0001] This utility model belongs to the field of thermal insulation pipe technology, specifically a pipe connector used in the continuous production of prefabricated direct-buried thermal insulation pipes. Background Technology

[0002] Precast direct-buried insulated pipelines are factory-prefabricated, integrated, high-efficiency insulated transport pipelines. They are primarily used for long-distance transport of media (hot water, steam, chemical fluids, etc.), possessing comprehensive properties such as insulation, corrosion resistance, and pressure resistance. They are core equipment in heating, water supply, and industrial transport fields. To ensure continuous production during manufacturing, connectors are often installed between two insulated pipes.

[0003] In continuous production, existing insulation pipe connectors are usually installed at the ends and tails of two insulation pipes. Since the connector is sleeved on the outer surface of the insulation pipe, it is difficult to spray the sleeved part when performing subsequent processes such as polyurethane spraying. This requires additional spraying of this part, which increases the workload and leads to low production efficiency.

[0004] Therefore, this utility model provides a pipe connector used in the continuous production of prefabricated direct-buried insulated pipes. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to this utility model includes an insulated pipe body; it also includes a storage frame, which is set between two insulated pipe bodies, and both ends of the insulated pipe body are provided with storage grooves for sliding blocks to move. A "U"-shaped connecting plate is fixedly installed at one end of the sliding block. Threaded rods are connected to the top and bottom of the connecting plate, and an arc-shaped top plate is provided at the ends of the two threaded rods that are far apart from each other.

[0007] Furthermore, the threaded rod and the top plate are connected by a ball joint, and several arc-shaped rubber gaskets are fixedly installed on the side of the top plate away from the threaded rod.

[0008] Furthermore, one side of the slider has several horizontally arranged positioning holes, and a positioning rod is slidably connected to the storage frame.

[0009] Furthermore, an "L"-shaped insert is fixedly installed on the surface of the positioning rod, and a slot that communicates with the storage groove and is adapted to the insert is provided in the storage frame.

[0010] Furthermore, an elastic block is fixedly installed inside the storage slot, an air inlet pipe with a one-way valve is fixedly installed on one side of the elastic block, and an air outlet pipe with a one-way valve and connected to the interior is fixedly installed on the other side of the elastic block.

[0011] Furthermore, a hollow fixing tube is fixedly installed on the connecting plate, and one end of the fixing tube is connected to the inside of the air outlet tube. A hollow frame is fixedly installed on the top of the fixing tube, and several air outlet holes connected to the inside are opened on the top of the hollow frame. Several hollow branch pipes connected to the inside are fixedly installed on the surface of the fixing tube, and the branch pipes are connected to the inside of the hollow frame.

[0012] Furthermore, one side of the slider has a rounded corner with a rolling column.

[0013] The beneficial effects of this utility model are as follows: 1. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to this utility model involves placing a storage frame between two insulated pipe bodies and sliding a slider in the storage groove. This allows the two sliders, along with connecting plates and top plates, to move away from each other, thus placing the two connecting plates within the two insulated pipe bodies. The threaded rod is then tightened according to the actual dimensions of the insulated pipe body, moving the threaded rod along with the ball head, top plate, and gasket. This causes the top plate, along with the gasket, to contact the inner wall of the insulated pipe body. Simultaneously, the position of the top plate is adjusted by rotating the ball head. This design allows the connector to be positioned within the two insulated pipe bodies, enabling the insulated pipe bodies to move with assistance during continuous production. Furthermore, because the connector is positioned within the insulated pipe body, it does not obstruct the outer surface of the insulated pipe body during spraying operations, allowing for direct spraying without additional touch-up spraying and avoiding any impact on the working efficiency of the insulated pipe body.

[0014] 2. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to this utility model utilizes the rolling pins on the rounded corners to continuously compress the elastic block as the slider moves. This allows the gas inside the elastic block to enter the fixed pipe, branch pipe, and hollow frame through the vent pipe. The gas inside the hollow frame is then blown towards the inner wall of the insulated pipe body through the vent holes, thereby pre-cleaning the contact area between the inner wall of the insulated pipe body and the top plate. The rounded corners and rolling pins, while compressing the elastic block, also act as a buffer, preventing the elastic block from breaking under pressure. The hollow frame and multiple vent holes expand the cleaning range and facilitate contact and fixation between the top plate and the inner wall of the insulated pipe body. The designed branch pipes not only deliver gas but also provide additional support to the hollow frame. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the heat-insulating pipe body in this utility model; Figure 2 This is a schematic diagram of the structure of the storage frame in this utility model; Figure 3 This is a cross-sectional view of the storage frame in this utility model; Figure 4 This is a schematic diagram of the slider structure in this utility model; Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A; Figure 6 This is a structural schematic diagram of the hollow frame in this utility model; Figure 7 This is a schematic diagram of the top plate in this utility model.

[0017] In the diagram: 1. Insulation pipe body; 2. Storage frame; 3. Storage slot; 4. Slider; 5. Connecting plate; 6. Threaded rod; 7. Top plate; 8. Ball head; 9. Gasket; 10. Positioning hole; 11. Positioning rod; 12. Insert rod; 13. Slot; 14. Elastic block; 15. Air inlet pipe; 16. Air outlet pipe; 17. Fixed pipe; 18. Branch pipe; 19. Hollow frame; 20. Air outlet; 21. Rounded corner; 22. Rolling column. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1 to 7 As shown in the embodiment of this utility model, a pipe connector used in the continuous production of prefabricated direct-buried insulated pipes includes an insulated pipe body 1; it also includes a storage frame 2, which is disposed between two insulated pipe bodies 1, and both ends of the insulated pipe body 1 are provided with storage grooves 3 for sliding blocks 4 to move. A "U"-shaped connecting plate 5 is fixedly installed at one end of the sliding block 4. Threaded rods 6 are connected to the top and bottom of the connecting plate 5, and an arc-shaped top plate 7 is provided at the ends of the two threaded rods 6 that are far apart from each other.

[0020] Specifically, the threaded rod 6 and the top plate 7 are connected by a ball joint 8, and several arc-shaped rubber gaskets 9 are fixedly installed on the side of the top plate 7 away from the threaded rod 6. Several horizontally arranged positioning holes 10 are opened on one side of the slider 4, and a positioning rod 11 is slidably connected to the storage frame 2.

[0021] During operation, before the two insulated pipe bodies 1 are put into continuous production (at which time both insulated pipe bodies 1 are on the conveying equipment), the storage frame 2 is placed between the two insulated pipe bodies 1, and the slider 4 in the storage groove 3 is slid, so that the two sliders 4, along with the connecting plate 5 and the top plate 7, move away from each other, so that the two connecting plates 5 are respectively placed in the two insulated pipe bodies 1. After the sliders 4 have moved to the appropriate position, the positioning rod 11 is slid, so that the positioning rod 11, along with the insertion rod 12, disengages from the slot 13, so that the positioning rod 11 is no longer fixed, and moves down to insert into the positioning rod 11 to fix the slider 4, so that the slider 4 no longer moves with the connecting plate 5, which facilitates subsequent operations. Next, according to the actual size of the insulation pipe body 1, tighten the threaded rod 6 to move the threaded rod 6 along with the ball head 8, the top plate 7 and the gasket 9, so that the top plate 7 along with the gasket 9 contacts the inner wall of the insulation pipe body 1. At the same time, adjust the position of the top plate 7 by rotating the ball head 8, so that the arc-shaped top plate 7 matches the inner wall of the insulation pipe body 1 better, thus achieving a complete fit. The gasket 9 also increases friction and assists in fixing.

[0022] It should be noted that the positioning rod 11 can prevent the slider 4 from sliding out.

[0023] The structure designed above allows the connector to be housed within the two insulation tubes 1, thus enabling the insulation tubes 1 to move during continuous production. Furthermore, because the connector is located within the insulation tube 1, it does not obstruct the outer surface of the insulation tube 1 during spraying operations, allowing for direct spraying without additional touch-up spraying and preventing any impact on the working efficiency of the insulation tube 1.

[0024] An "L"-shaped insert rod 12 is fixedly installed on the surface of the positioning rod 11. A slot 13, which communicates with the storage groove 3 and is adapted to the insert rod 12, is opened in the storage frame 2. An elastic block 14 is fixedly installed in the storage groove 3. An air inlet pipe 15 with a one-way valve is fixedly installed on one side of the elastic block 14, and an air outlet pipe 16 with a one-way valve, which communicates with the interior, is fixedly installed on the other side of the elastic block 14.

[0025] Specifically, a hollow fixing tube 17 is fixedly installed on the connecting plate 5, and one end of the fixing tube 17 is connected to the interior of the air outlet tube 16. A hollow frame 19 is fixedly installed on the top of the fixing tube 17, and the top of the hollow frame 19 has several air outlet holes 20 that are connected to the interior. Several hollow branch tubes 18 that are connected to the interior are fixedly installed on the surface of the fixing tube 17, and the branch tubes 18 are connected to the interior of the hollow frame 19. One side of the slider 4 has a rounded corner 21 with a rolling column 22.

[0026] During operation, as the slider 4 moves, the rolling pins 22 on the rounded corner 21 continuously compress the elastic block 14, allowing the gas inside the elastic block 14 to enter the fixed pipe 17, branch pipe 18, and hollow frame 19 through the air outlet 16. The gas inside the hollow frame 19 is then blown towards the inner wall of the insulation pipe body 1 through the air outlet 20, thus pre-cleaning the contact area between the inner wall of the insulation pipe body 1 and the top plate 7. The rounded corner 21 and rolling pins 22, while compressing the elastic block 14, also act as a buffer, preventing the elastic block 14 from breaking under pressure. The hollow frame 19 and the numerous air outlets 20 expand the cleaning range and facilitate contact and fixation between the top plate 7 and the inner wall of the insulation pipe body 1. The branch pipe 18, while supplying air, also provides additional support to the hollow frame 19.

[0027] Working principle: Before continuous production of the two insulation pipe bodies 1, the storage frame 2 is placed between the two insulation pipe bodies 1, and the slider 4 in the storage groove 3 is slid, allowing the two sliders 4, along with the connecting plate 5 and the top plate 7, to move away from each other, so that the two connecting plates 5 are respectively placed inside the two insulation pipe bodies 1. After the slider 4 moves to the appropriate position, the positioning rod 11 is slid, allowing the positioning rod 11 to disengage from the slot 13 along with the insertion rod 12, so that the positioning rod 11 is no longer fixed, and it moves down and inserts into the positioning rod 11 to fix the slider 4, so that the slider 4 no longer moves along with the connecting plate 5, facilitating subsequent operations. Then, according to the actual size of the insulation pipe body 1, the threaded rod 6 is turned, allowing the threaded rod 6 to move along with the ball head 8, the top plate 7, and the gasket 9, so that the top plate 7, along with the gasket 9, contacts the inner wall of the insulation pipe body 1. At the same time, the position of the top plate 7 is adjusted by rotating the ball head 8, so that the arc-shaped top plate 7 better matches the inner wall of the insulation pipe body 1, thus achieving a complete fit, and the gasket 9 increases friction and assists in fixation.

[0028] When the slider 4 moves, the rolling column 22 on the rounded corner 21 continuously squeezes the elastic block 14, allowing the gas in the elastic block 14 to enter the fixed pipe 17, branch pipe 18 and hollow frame 19 through the air outlet 16. The gas in the hollow frame 19 will be blown to the inner wall of the insulation pipe body 1 through the air outlet 20, thereby achieving pre-cleaning of the contact area between the inner wall of the insulation pipe body 1 and the top plate 7.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe connector used in the continuous production of prefabricated direct-buried insulated pipes, comprising an insulated pipe body (1); characterized in that: Also includes: The storage frame (2) is set between two insulation pipe bodies (1), and both ends of the insulation pipe body (1) are provided with storage slots (3) for the slider (4) to move. One end of the slider (4) is fixedly installed with a "U"-shaped connecting plate (5). The top and bottom of the connecting plate (5) are connected with threaded rods (6), and the ends of the two threaded rods (6) that are far apart from each other are provided with arc-shaped top plates (7).

2. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 1, characterized in that: The threaded rod (6) and the top plate (7) are connected by a ball head (8), and a number of arc-shaped rubber gaskets (9) are fixedly installed on the side of the top plate (7) away from the threaded rod (6).

3. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 1, characterized in that: The slider (4) has several horizontally arranged positioning holes (10) on one side, and the storage frame (2) is slidably connected to a positioning rod (11).

4. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 3, characterized in that: The surface of the positioning rod (11) is fixedly installed with an "L"-shaped insert rod (12), and the storage frame (2) has a slot (13) that is connected to the storage groove (3) and is adapted to the insert rod (12).

5. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 1, characterized in that: An elastic block (14) is fixedly installed inside the storage slot (3). An air inlet pipe (15) with a one-way valve is fixedly installed on one side of the elastic block (14). An air outlet pipe (16) with a one-way valve and connected to the interior is fixedly installed on one side of the elastic block (14).

6. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 5, characterized in that: A hollow fixed tube (17) is fixedly installed on the connecting plate (5), and one end of the fixed tube (17) is connected to the inside of the air outlet tube (16). A hollow frame (19) is fixedly installed on the top of the fixed tube (17). Several air outlet holes (20) connected to the inside are opened on the top of the hollow frame (19). Several hollow branch pipes (18) connected to the inside are fixedly installed on the surface of the fixed tube (17). The branch pipes (18) are connected to the inside of the hollow frame (19).

7. The pipe connector used in the continuous production of prefabricated direct-buried insulated pipes according to claim 5, characterized in that: The slider (4) has a rounded corner (21) with a rolling column (22) on one side.

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