Connecting device of directly-buried thermal insulation pipe
By designing a sliding and adjustable direct-buried insulated pipe connection device, the problems of large space occupation and insufficient telescopic adjustment capacity of traditional devices are solved, enabling flexible adaptation to construction needs in different scenarios and improving construction efficiency and management convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-31
AI Technical Summary
Existing direct-buried insulated pipe connection devices occupy a lot of space during transportation and construction, lack expansion and contraction adjustment capabilities, and are difficult to adapt to narrow spaces and complex working conditions, affecting construction efficiency and cost.
A connecting device including an upper pressure ring, a lower pressure ring, and a supporting cross plate was designed. The sliding groove and the movable pressure ring are adjustable. Combined with components such as a limit block, a mounting block, a connecting shaft, and a wing nut, it can achieve telescopic adjustment and stable connection.
This reduces the space occupied by the device when it is not in operation, facilitates transportation and storage, and improves the management and construction efficiency of the construction site.
Smart Images
Figure CN224065005U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of direct-buried insulated pipe technology, specifically referring to a connection device for direct-buried insulated pipes. Background Technology
[0002] In the laying and installation of direct-buried insulated pipes, pipe connection is a crucial step. Traditional connection methods often use pipe alignment tools to assist in pipe docking, followed by welding to fix the pipes together. However, existing pipe alignment tools have many shortcomings.
[0003] In terms of its structural design, the circumference is often fixed. This fixed structure makes the connector lack the ability to extend and adjust. In actual operation scenarios, whether in the transportation process or storage stage, it occupies a lot of space, which brings great inconvenience to logistics and material stacking at the construction site, increases the overall cost and management difficulty of the project. Moreover, in some narrow spaces or complex working conditions, the fixed circumference connector is difficult to flexibly adapt to pipeline connection operations, which seriously affects construction efficiency and project progress, and cannot meet the increasingly diversified and efficient pipeline construction needs. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a connection device for direct-buried insulated pipes, which effectively solves the problem of existing connectors having fixed circumference and lacking telescopic adjustment capability.
[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A connection device for a direct-buried insulated pipe includes an upper pressure ring, a lower pressure ring and a support horizontal plate. The upper pressure ring and the lower pressure ring are arranged in pairs and are hinged to each other. The support horizontal plate is fixedly connected between the two sets of upper pressure rings and lower pressure rings respectively.
[0006] The upper and lower pressure rings are provided with sliding grooves on their outer sides. Movable pressure rings are slidably mounted on the sliding grooves on both sides. The upper pressure ring, lower pressure ring and movable pressure ring together form a circular ring that fits tightly against the outer side of the pipe. Multiple fixed connecting plates are fixed between the movable pressure rings. A connecting component is provided between the movable pressure ring and the upper and lower pressure rings to fix the position of the movable pressure ring.
[0007] Preferably, the connecting assembly includes a limiting block, a mounting block, a connecting shaft, a threaded rod, and a wing nut. The limiting blocks are fixed in pairs on the outer surface of the upper or lower pressure ring near the upper side of the slide groove. The mounting blocks are fixed in pairs on the outer surface of the movable pressure ring and aligned with the limiting blocks. The connecting shaft is fixed on the mounting block. The bottom of the threaded rod is rotatably sleeved on the connecting shaft. The wing nut is threaded onto the top of the threaded rod and pressed against the top of the limiting block.
[0008] Preferably, the paired limiting blocks are located at the front and rear ends of the slide groove, and the paired mounting blocks are located at one end of the movable pressure ring.
[0009] Preferably, one end of the movable pressure ring is fixed with an end plate, and a support frame is rotatably provided on one set of the end plates. An abutment block is fixed at the top of the support frame, and a handle is also provided on the top surface of the support frame. A jack is placed on the end plate and abuts against the abutment block.
[0010] Preferably, both the supporting cross plate and the fixed connecting plate have grooves in the middle.
[0011] Preferably, the contact surfaces of the supporting cross plate and the fixed connecting plate with the pipe are all on the same circumference.
[0012] The beneficial effects of the above-mentioned structure of this utility model are as follows: by setting grooves on the upper and lower pressure rings, the movable pressure ring can be slidably set on the grooves, and the movable pressure ring and the upper and lower pressure rings together form a circle. This design allows the movable pressure ring to be flexibly pulled out and stored, realizing the telescopic adjustment capability. In the non-working state, it greatly reduces the overall space occupied by the device, and significantly reduces the loading capacity on transport vehicles and the storage space requirements on construction sites, which facilitates management and scheduling. Attached Figure Description
[0013] Figure 1 This utility model provides a schematic diagram of the overall structure of a connection device for a direct-buried insulated pipe. Figure 1 ;
[0014] Figure 2 This utility model provides a schematic diagram of the overall structure of a connection device for a direct-buried insulated pipe. Figure 2 ;
[0015] Figure 3 This utility model provides a schematic diagram of the overall structure of a connection device for a direct-buried insulated pipe. Figure 3 ;
[0016] Figure 4 for Figure 3 Enlarged view of a section at point A
[0017] Figure 5 This utility model provides a schematic diagram of the overall structure of a connection device for a direct-buried insulated pipe. Figure 4 ;
[0018] Figure 6 This is a front view of a connection device for a direct-buried insulated pipe proposed in this utility model.
[0019] Among them, 1. upper pressure ring, 2. lower pressure ring, 3. support cross plate, 4. slide groove, 5. movable pressure ring, 6. fixed connecting plate, 7. limit block, 8. mounting block, 9. connecting shaft, 10. threaded rod, 11. wing nut, 12. end plate, 13. support frame, 14. abutment block, 15. handle, 16. jack, 17. groove, 18. connecting assembly. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0022] like Figure 1-6 As shown, the present invention proposes a connection device for a direct-buried insulated pipe, which includes an upper pressure ring 1, a lower pressure ring 2 and a support plate 3. The upper pressure ring 1 and the lower pressure ring 2 are arranged in pairs and are hinged to each other. The support plate 3 is fixedly connected between the two sets of upper pressure rings 1 and lower pressure rings 2 respectively.
[0023] Both outer surfaces of the upper pressure ring 1 and the lower pressure ring 2 are provided with sliding grooves 4. Movable pressure rings 5 are slidably mounted on the sliding grooves 4 on both sides. The upper pressure ring 1, the lower pressure ring 2, and the movable pressure ring 5 together form a circular ring that fits tightly against the outer side of the pipe. Multiple fixed connecting plates 6 are fixed between the movable pressure rings 5. Grooves 17 are provided in the middle of the supporting horizontal plate 3 and the fixed connecting plates 6 to facilitate welding at the pipe connection. The contact surfaces of the supporting horizontal plate 3 and the fixed connecting plates 6 with the pipe are on the same circumference, connecting the movable pressure rings 5. A connecting component 18 is provided between the movable pressure ring 5 and the upper pressure ring 1 and the lower pressure ring 2 to fix the position of the movable pressure ring 5.
[0024] like Figure 4As shown, the connecting assembly 18 includes a limiting block 7, a mounting block 8, a connecting shaft 9, a threaded rod 10, and a wing nut 11. The limiting blocks 7 are fixed in pairs on the outer surface of the upper pressure ring 1 or the lower pressure ring 2 near the upper side of the slide groove 4. The mounting blocks 8 are fixed in pairs on the outer surface of the movable pressure ring 5 and aligned with the position of the limiting blocks 7. The connecting shaft 9 is fixed on the mounting block 8. The bottom of the threaded rod 10 is rotatably sleeved on the connecting shaft 9. The wing nut 11 is threadedly sleeved on the top of the threaded rod 10 and pressed against the top of the limiting block 7, thus fixing the position of the movable pressure ring 5.
[0025] like Figure 1 , 2 As shown in Figures 3 and 5, the paired limiting blocks 7 are located at the front and rear ends of the slide groove 4, and the paired mounting blocks 8 are located at one end of the movable pressure ring 5, ensuring that the movable pressure ring 5 can be fixed in both the telescopic and telescopic states.
[0026] like Figure 5 As shown, one end of the movable pressure ring 5 is fixed with an end plate 12. A support frame 13 is rotatably mounted on one set of end plates 12. An abutment block 14 is fixed at the top of the support frame 13. A handle 15 is also provided on the top surface of the support frame 13. A jack 16 is placed on the end plate 12 and abuts against the abutment block 14. Pressing the jack 16 tightens the upper pressure ring 1 and the lower pressure ring 2 onto the pipe.
[0027] In practical use, during initial installation, the operator first rotates the wing nut 11 to rotate the threaded rod 10 out of the limiting block 7, pushes the movable pressure ring 5 along the sliding groove 4 of the upper and lower pressure rings to the position where the mounting block 8 and the limiting block 7 are aligned, rotates the threaded rod 10 to rotate it into the gap between the limiting blocks 7, and screws the wing nut 11 to abut against the limiting block 7, fixing the position of the movable pressure ring 5. The movable pressure ring 5 and the upper and lower pressure rings form a stable circular mating structure.
[0028] During the pipe connection process, the upper and lower pressure rings and the movable pressure ring 5 are used to limit and align the pipes in the circumferential direction to ensure that the connection end faces of the two pipes can be accurately aligned. The upper and lower pressure rings and the movable pressure ring 5 apply a uniform clamping force to the pipes. The jack 16 is pressed to tighten the upper pressure ring 1 and the lower pressure ring 2 onto the pipes, so that the pipes maintain a stable relative position during the connection process, which facilitates subsequent welding, sealing and other connection processes.
[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A connecting device for directly buried thermal insulation pipes, characterized in that: It comprises upper pressing ring (1), lower pressing ring (2) and support horizontal plate (3), the upper pressing ring (1) and lower pressing ring (2) are arranged in pairs, and the upper pressing ring (1) and lower pressing ring (2) are hinged to each other, and the support horizontal plate (3) is fixedly connected between the two groups of upper pressing ring (1) and lower pressing ring (2) respectively; The upper pressing ring (1) and lower pressing ring (2) are provided with sliding grooves (4) on the outer sides, and movable pressing rings (5) are slidably arranged on the sliding grooves (4) on both sides, the upper pressing ring (1), the lower pressing ring (2) and the movable pressing ring (5) jointly form a circular ring, which closely abuts the outer side of the pipeline, a plurality of fixed connecting plates (6) are fixed between the movable pressing rings (5), and a connecting assembly (18) is arranged between the movable pressing ring (5) and the upper pressing ring (1) and the lower pressing ring (2) to fix the position of the movable pressing ring (5).
2. A connecting device for directly buried thermal insulation pipes according to claim 1, characterized in that: The connecting assembly (18) comprises limiting blocks (7), mounting blocks (8), connecting shafts (9), threaded rods (10) and butterfly nuts (11), the limiting blocks (7) are fixed in pairs on the outer sides of the upper pressing ring (1) or the lower pressing ring (2) near the sliding grooves (4) above, the mounting blocks (8) are fixed in pairs on the outer sides of the movable pressing ring (5) and are aligned with the limiting blocks (7), the connecting shafts (9) are fixed on the mounting blocks (8), the threaded rods (10) are rotatably sleeved on the connecting shafts (9) at the bottom, and the butterfly nuts (11) are threadedly sleeved on the threaded rods (10) at the top and are pressed on the limiting blocks (7) at the top.
3. A connecting device for directly buried thermal insulation pipes according to claim 2, characterized in that: The pairs of limiting blocks (7) are respectively located at the front and rear ends of the sliding grooves (4), and the pairs of mounting blocks (8) are located at one end of the movable pressing ring (5).
4. The connecting device of the directly-buried thermal-insulation pipe according to claim 1, characterized in that: One end of the movable pressing ring (5) is fixedly provided with an end plate (12), one group of end plates (12) is rotatably provided with a support frame (13), the top end of the support frame (13) is fixedly provided with an abutting block (14), the top surface of the support frame (13) is further provided with a handle (15), and the end plate (12) is placed with a jack (16) abutting against the abutting block (14).
5. The connecting device of the directly-buried thermal-insulation pipe according to claim 1, characterized in that: The support horizontal plate (3) and the fixed connecting plate (6) are provided with recesses (17) at the middle positions.
6. A connecting device for directly buried thermal insulation pipe according to claim 1, characterized in that: The contact surfaces of the support horizontal plate (3) and the fixed connecting plate (6) with the pipeline are on the same circumferential line.