High-strength quick connecting device for direct burial laying of heat supply pipeline

Abstract

The utility model relates to the field of heat supply pipelines, in particular to a high-strength quick connecting device for direct burial laying of heat supply pipelines, which comprises a first pipeline and a second pipeline, one end of the first pipeline is fixedly connected with a first flange, one end of the second pipeline is fixedly connected with a second flange, and one side of the first flange is fixedly connected with a connecting block. A containing cavity is formed in the connecting block, a first limiting block is slidably connected into the containing cavity, a gear and a rack are arranged in the containing cavity, and a limiting mechanism for controlling the first limiting block to move through the gear and the rack to limit the first flange and the second flange is arranged on one side of the second flange. During use, the gear can drive the rack to rotate through the limiting mechanism, the rack drives the first limiting block originally arranged in the containing cavity to move out of the two sides of the connecting block and be clamped on one side of the second flange, the first flange and the second flange are limited, and mounting holes of the first flange and the second flange can completely correspond to each other.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline technology, and in particular to a high-strength and fast connection device for direct burial of heating pipelines. Background Technology

[0002] Heating pipelines are pipeline systems that transport steam or hot water. Their core task is to transport the heat energy generated by boilers or heat sources to indoor heating equipment (such as radiators, underfloor heating, etc.) through heat medium (steam or hot water) to meet the heating needs of industrial production, residential life and public buildings.

[0003] A search revealed existing heating pipe connection devices, such as the one disclosed in CN220540522U, which is suitable for heating pipe connection. This device connects a first fastening bolt between corresponding first and second mounting holes, and a first fastening nut is provided at the lower end of the outer wall of the first fastening bolt. This improves the stability of the connection between the first and second pipes and prevents loosening during use. However, after connecting the first and second pipes, the first and second mounting holes cannot be guaranteed to be perfectly aligned, requiring further adjustment before the first fastening nut can be screwed into the first and second mounting holes for fixation. This process is time-consuming and results in low connection efficiency. Therefore, a high-strength, rapid connection device for direct burial of heating pipes is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that after connecting the first pipe and the second pipe, the first mounting hole and the second mounting hole cannot be guaranteed to be completely aligned, and adjustments are required before the first fastening nut can be screwed into the first mounting hole and the second mounting hole for fixing. This takes a long time and results in low connection efficiency. Therefore, a high-strength and fast connection device for direct burial of heating pipes is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-strength, rapid connection device for direct burial of heating pipelines includes a first pipeline and a second pipeline. One end of the first pipeline is fixedly connected to a first flange, and one end of the second pipeline is fixedly connected to a second flange. A connecting block is fixedly connected to one side of the first flange. The connecting block has a receiving cavity, and a first limiting block is slidably connected within the receiving cavity. A gear and a rack are provided within the receiving cavity. A limiting mechanism is provided on one side of the second flange, which limits the movement of the first limiting block by the gear and rack to limit the movement of the first and second flanges.

[0007] Preferably, the connecting block is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a knob, one end of the rotating rod is fixedly connected to a gear, the gear meshes with a rack, a limiting groove is formed in the receiving cavity, a second limiting block is fixedly connected to one side of the rack, the second limiting block is slidably connected to the limiting groove, and one end of the rack is fixedly connected to a first limiting block.

[0008] Preferably, a circular groove is provided on one side of the second flange, the first flange is located in the circular groove, the second flange is provided with a rectangular opening, the connecting block is located in the rectangular opening, and one side of the first limiting block is in contact with one side of the second flange.

[0009] Preferably, a first annular shell and a second annular shell are provided at the connection between the first flange and the second flange. The first flange and the second flange are located inside the first annular shell and the second annular shell, respectively. A rectangular shell is fixedly connected to one end of the second annular shell. A spring is fixedly connected to the rectangular shell. A connecting plate is fixedly connected to one end of the spring. A snap-fit ​​block is fixedly connected to one side of the connecting plate. The second annular shell has a through hole. A snap-fit ​​groove is opened on one side of the first annular shell. The snap-fit ​​block is located in the snap-fit ​​groove. A connecting rod is fixedly connected to one side of the connecting plate. The connecting rod is slidably connected to the rectangular shell. A pull plate is fixedly connected to one end of the connecting rod.

[0010] Preferably, the first flange and the second flange are provided with fixing holes, and fixing bolts are connected in the fixing holes, and fixing nuts are provided on the fixing bolts.

[0011] Preferably, a sealing plate is fixedly connected to one side of the first flange, and a sealing groove is provided on one side of the second flange, with the sealing plate located in the sealing groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When using this equipment, the gear drives the rack to rotate through the limiting mechanism. The rack drives the first limiting block, which was originally in the receiving cavity, to move out from both sides of the connecting block and lock onto one side of the second flange, thus limiting the first and second flanges. The mounting holes of the first and second flanges can be perfectly aligned without further adjustment, making it convenient to insert the fixing bolts into the fixing holes. The time required is short and the connection efficiency is high.

[0014] 2. When using this equipment, the first and second annular shells can be fitted onto the first and second flanges to protect the internal first and second flanges. At the same time, the pull plate moves the connecting plate through the connecting rod, the spring retracts, and the snap block moves out of the snap groove, which can open the first and second annular shells, making it convenient to conduct regular inspections of the internal first and second flanges. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-strength, rapid connection device for direct burial of heating pipelines proposed in this utility model.

[0016] Figure 2 A three-dimensional structural diagram of the first and second flanges of a high-strength, rapid connection device for direct burial of heating pipelines proposed in this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the sealing plate of a high-strength, fast-connection device for direct burial of heating pipelines proposed in this utility model.

[0018] Figure 4 A three-dimensional structural diagram of the limiting mechanism of a high-strength rapid connection device for direct burial of heating pipelines proposed in this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the sealing groove of a high-strength, rapid connection device for direct burial of heating pipelines proposed in this utility model.

[0020] Figure 6 This invention presents a three-dimensional structural diagram of a high-strength, quick-connect device for direct burial of heating pipelines, comprising a spring and a snap-fit ​​block.

[0021] In the diagram: 1. First pipe; 2. Second pipe; 3. First flange; 4. Second flange; 5. Connecting block; 6. First limiting block; 7. Gear; 8. Rack; 9. Knob; 10. Limiting groove; 11. Rectangular opening; 12. First annular shell; 13. Second annular shell; 14. Rectangular shell; 15. Spring; 16. Connecting plate; 17. Snap-fit ​​block; 18. Connecting rod; 19. Pull plate; 20. Fixing bolt; 21. Sealing plate; 22. Sealing groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-6A high-strength, rapid connection device for direct burial of heating pipelines includes a first pipeline 1 and a second pipeline 2. One end of the first pipeline 1 is fixedly connected to a first flange 3, and one end of the second pipeline 2 is fixedly connected to a second flange 4. The other end of the first pipeline 1 is connected to the second flange 4, and the other end of the second pipeline 2 is connected to the first flange 3, so that multiple pipeline sections can be connected together through the first flange 3 and the second flange 4.

[0024] A connecting block 5 is fixedly connected to one side of the first flange 3. The connecting block 5 has a receiving cavity. A first limiting block 6 is slidably connected in the receiving cavity. A gear 7 and a rack 8 are provided in the receiving cavity. A limiting mechanism is provided on one side of the second flange 4, which controls the movement of the first limiting block 6 through the gear 7 and the rack 8 to limit the movement of the first limiting block 6 and limit the movement of the first flange 3 and the second flange 4. Through the limiting mechanism, the first limiting block 6 limits the movement of the first flange 3 and the second flange 4, thereby facilitating the fixing of the first flange 3 and the second flange 4 together, thereby connecting the first pipe 1 and the second pipe 2 together.

[0025] The connecting block 5 is rotatably connected to a rotating rod, one end of which is fixedly connected to a knob 9. The other end of the rotating rod is fixedly connected to a gear 7, which meshes with a rack 8. By rotating the rotating rod, the gear 7 can drive the rack 8 to move, moving the first limiting block 6, which was originally located in the receiving cavity, from both sides to outside the connecting block 5, thereby limiting the first flange 3 and the second flange 4.

[0026] It should be noted that a pin and a pin hole are provided at the connection between the rotating rod and the connecting block 5. The cooperation between the pin and the pin hole allows the first limiting block 6 to be in the appropriate position, thereby restricting the rotation of the rotating rod.

[0027] A limiting groove 10 is provided in the cavity. A second limiting block is fixedly connected to one side of the rack 8. The second limiting block is slidably connected to the limiting groove 10. One end of the rack 8 is fixedly connected to the first limiting block 6. Through the limiting groove 10 and the second limiting block, both racks 8 are kept meshing with the gear 7, while the racks 8 are not affected from moving with the rotation of the gear 7.

[0028] A circular groove is provided on one side of the second flange 4, and the first flange 3 is located in the circular groove. The second flange 4 has a rectangular opening 11, and the connecting block 5 is located in the rectangular opening 11. One side of the first limiting block 6 is in contact with one side of the second flange 4. The rectangular opening 11 allows the connecting block 5 to pass through the second flange 4, so that the first limiting block 6 abuts against one side of the second flange 4.

[0029] A first annular shell 12 and a second annular shell 13 are provided at the connection between the first flange 3 and the second flange 4. The first flange 3 and the second flange 4 are located inside the first annular shell 12 and the second annular shell 13. The first annular shell 12 and the second annular shell 13 protect the first flange 3 and the second flange 4 inside, preventing the first flange 3 and the second flange 4 from contacting corrosive substances underground, and greatly extending the service life of the first flange 3 and the second flange 4.

[0030] A rectangular shell 14 is fixedly connected to one end of the second annular shell 13. A spring 15 is fixedly connected to the rectangular shell 14. A connecting plate 16 is fixedly connected to one end of the spring 15. A snap-fit ​​block 17 is fixedly connected to one side of the connecting plate 16. The second annular shell 13 has a through hole. A snap-fit ​​groove is opened on one side of the first annular shell 12. The snap-fit ​​block 17 is located in the snap-fit ​​groove. The first annular shell 12 and the second annular shell 13 are connected by a hinge. Due to the elasticity of the spring 15, the connecting plate 16 abuts against one side of the second annular shell 13, allowing the snap-fit ​​block 17 to enter the snap-fit ​​groove through the through hole to limit the first annular shell 12 and the second annular shell 13, and to protect the first flange 3 and the second flange 4 inside.

[0031] A connecting rod 18 is fixedly connected to one side of the connecting plate 16. The connecting rod 18 is slidably connected to the rectangular shell 14. A pull plate 19 is fixedly connected to one end of the connecting rod 18. By pulling the connecting rod 18 through the pull plate 19, the snap block 17 can be moved out of the snap groove, thereby opening the first annular shell 12 and the second annular shell 13, which facilitates the periodic inspection of the internal first flange 3 and the second flange 4.

[0032] The first flange 3 and the second flange 4 have fixing holes, and fixing bolts 20 are connected in the fixing holes. Fixing nuts are provided on the fixing bolts 20. The first flange 3 and the second flange 4 are fixed together through the fixing holes using the fixing bolts 20 and the fixing nuts.

[0033] A sealing plate 21 is fixedly connected to one side of the first flange 3, and a sealing groove 22 is opened on one side of the second flange 4. The sealing plate 21 is located in the sealing groove 22. The sealing between the first flange 3 and the second flange 4 is achieved through the two sealing plates 21 and the two sealing grooves 22.

[0034] The working principle of this utility model:

[0035] The first flange 3 is inserted into the circular groove, and the connecting block 5 passes through the rectangular opening 11 to one side of the second flange 4. Then, the knob 9 is turned, which drives the rotating rod to rotate. The rotating rod drives the gear 7 to rotate, and the gear 7 drives the rack 8 to rotate. The rack 8 drives the first limiting block 6, which was originally in the receiving cavity, to move out from both sides of the connecting block 5 and lock onto one side of the second flange 4, thus limiting the first flange 3 and the second flange 4. Then, the fixing bolt 20 is inserted into the fixing hole, and the fixing nut is used to fix the first flange 3 and the second flange 4, thereby connecting the first pipe 1 and the second pipe 2 together.

[0036] Finally, pull the pull plate 19. The pull plate 19 drives the connecting plate 16 to move through the connecting rod 18. The spring 15 contracts, and after the first annular shell 12 and the second annular shell 13 are fitted onto the first flange 3 and the second flange 4, the elasticity of the spring 15 causes the snap-fit ​​block 17 to snap into the snap-fit ​​groove, snapping the first annular shell 12 and the second annular shell 13 together, so that they protect the first flange 3 and the second flange 4 inside.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength, rapid connection device for direct burial of heating pipelines, comprising a first pipeline (1) and a second pipeline (2), characterized in that, One end of the first pipe (1) is fixedly connected to a first flange (3), and one end of the second pipe (2) is fixedly connected to a second flange (4). A connecting block (5) is fixedly connected to one side of the first flange (3). The connecting block (5) has a receiving cavity. A first limiting block (6) is slidably connected in the receiving cavity. A gear (7) and a rack (8) are provided in the receiving cavity. A limiting mechanism is provided on one side of the second flange (4) to limit the movement of the first limiting block (6) by controlling the gear (7) and the rack (8) to limit the movement of the first limiting block (6) and the second flange (4).

2. The high-strength, rapid connection device for direct burial of heating pipelines according to claim 1, characterized in that, The connecting block (5) is rotatably connected to a rotating rod. One end of the rotating rod is fixedly connected to a knob (9). One end of the rotating rod is fixedly connected to a gear (7). The gear (7) meshes with a rack (8). A limiting groove (10) is opened in the receiving cavity. A second limiting block is fixedly connected to one side of the rack (8). The second limiting block is slidably connected to the limiting groove (10). One end of the rack (8) is fixedly connected to a first limiting block (6).

3. A high-strength, rapid connection device for direct burial of heating pipelines according to claim 2, characterized in that, A circular groove is provided on one side of the second flange (4), the first flange (3) is located in the circular groove, the second flange (4) is provided with a rectangular opening (11), the connecting block (5) is located in the rectangular opening (11), and one side of the first limiting block (6) is attached to one side of the second flange (4).

4. A high-strength, rapid connection device for direct burial of heating pipelines according to claim 3, characterized in that, A first annular shell (12) and a second annular shell (13) are provided at the connection between the first flange (3) and the second flange (4). The first flange (3) and the second flange (4) are located inside the first annular shell (12) and the second annular shell (13). A rectangular shell (14) is fixedly connected to one end of the second annular shell (13). A spring (15) is fixedly connected to the rectangular shell (14). A connecting plate (16) is fixedly connected to one end of the spring (15). A snap-fit ​​block (17) is fixedly connected to one side of the connecting plate (16). The second annular shell (13) has a through hole. A snap-fit ​​groove is opened on one side of the first annular shell (12). The snap-fit ​​block (17) is located in the snap-fit ​​groove. A connecting rod (18) is fixedly connected to one side of the connecting plate (16). The connecting rod (18) is slidably connected to the rectangular shell (14). A pull plate (19) is fixedly connected to one end of the connecting rod (18).

5. A high-strength, rapid connection device for direct burial of heating pipelines according to claim 4, characterized in that, The first flange (3) and the second flange (4) are provided with fixing holes, and fixing bolts (20) are connected in the fixing holes. Fixing nuts are provided on the fixing bolts (20).

6. A high-strength, rapid connection device for direct burial of heating pipelines according to claim 5, characterized in that, A sealing plate (21) is fixedly connected to one side of the first flange (3), and a sealing groove (22) is provided on one side of the second flange (4), with the sealing plate (21) located in the sealing groove (22).

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