Protecting and early warning device for directly-buried heat distribution pipeline
By designing an adjustable warning plate structure, the problem of fixed warning plate length in existing devices has been solved, achieving flexibility and rapid assembly while reducing operational complexity.
Patent Information
- Application Number
- CN202520498954.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The existing early warning plate of the protection and early warning device for directly buried heating pipelines has a fixed length, which is difficult to adjust, reducing the flexibility of the device and increasing the operation procedures.
A device comprising a warning plate, an extension plate, and a limiting structure was designed. The position adjustment and positioning of the warning plate are achieved through the cooperation of a sliding groove and a slider, and rapid assembly and positioning are achieved through the cooperation of a rotating plate and a coil spring.
The system enables flexible position adjustment of the warning panel, preventing it from falling off, reducing operational complexity, and improving installation efficiency.
Smart Images

Figure CN223939016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal pipeline protection technology, specifically a protection and early warning device for directly buried thermal pipelines. Background Technology
[0002] Direct-buried heating pipelines are a technology that involves burying pre-insulated pipes directly underground. They are mainly used in heating systems. This technology utilizes the mechanical strength of the pipe itself and its accessories to jointly withstand the thermal stress generated during heating. Direct-buried heating pipelines are usually laid underground. Due to factors such as geological conditions, external loads, and temperature changes, the pipelines may suffer varying degrees of damage. Therefore, it is usually necessary to install protective and early warning devices on the pipelines during installation.
[0003] Existing technologies disclose several utility model patents in the field of thermal pipeline protection and processing technology. Among them, utility model patent CN202221439273.2 discloses a direct-buried thermal pipeline protection and early warning device, relating to the field of thermal pipeline early warning technology. It includes a thermal pipeline body, with two retaining rings (first and second) fitted on the outer surface of the body. The retaining rings are hinged together by a pin. A set of anti-slip strips is installed on the inner walls of both retaining rings, and the inner walls of the anti-slip strips are in contact with the outer surface of the thermal pipeline body. Through the coordinated arrangement of the thermal pipeline body, retaining rings, pins, anti-slip strips, locking components, sliding columns, sliding frames, buffer components, and an early warning plate, the device provides early warning and protection for the thermal pipeline body. The locking components allow for easy installation of retaining rings (first and second) on the outer surface of the thermal pipeline body, making installation convenient and quick, and improving the efficiency of thermal pipeline construction.
[0004] However, the above method still has the following drawbacks in actual use: Although the warning plate can be quickly assembled with the heat pipe body, the length of the warning plate is mostly fixed and it is difficult to adjust according to the length of the heat pipe, which reduces the flexibility of the warning plate and increases the subsequent operation procedures. Utility Model Content
[0005] The purpose of this invention is to provide a protection and early warning device for directly buried heating pipelines to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a direct-buried heating pipeline protection and early warning device, comprising a base, a heating pipeline body overlapping the base, an early warning plate one sleeved on the heating pipeline body, an extension plate slidably connected inside the early warning plate one, an early warning plate two fixedly connected to one side of the extension plate, an auxiliary rod fixedly connected to one side of the base, and a limiting structure fixedly connected to the other side of the base. The limiting structure is connected to the early warning plate two, and the limiting structure includes a fixed column, a limiting column, and a limiting disc. A fixed disc is fixedly connected to one end of the fixed column, a rotating plate is rotatably connected to the outside of the fixed column, a coil spring is sleeved on the fixed column, and bolts are provided inside the rotating plate.
[0007] As a further preferred embodiment of this technical solution, the heating pipe body is fitted with a connecting piece, and the connecting piece is provided with an installation rod inside, and the connecting piece is connected to the base through the installation rod.
[0008] As a further preferred embodiment of this technical solution, the auxiliary rod is snapped into the first warning plate, the second warning plate is sleeved on the outside of the thermal pipe, and the first warning plate overlaps with the base.
[0009] As a further preferred embodiment of this technical solution, the fixing column is fixedly connected to the outside of the base, the limiting column is fixedly connected to one side of the warning plate two, and the limiting plate is fixedly connected to the outside of the limiting column.
[0010] As a further preferred embodiment of this technical solution, the rotating plate is engaged with the limiting plate, the rotating plate is connected to the fixed plate via a coil spring, and the rotating plate is connected to the fixed column via bolts.
[0011] As a further preferred embodiment of this technical solution, a groove is provided inside the warning plate, and a slider is fixedly connected to the outside of the extension plate, with the slider slidably connected inside the groove.
[0012] This utility model provides a protection and early warning device for directly buried heating pipelines, which has the following beneficial effects:
[0013] (1) This utility model sets up a warning plate 1, an extension plate, a warning plate 2 and a limiting structure. When the warning plate 1 is sleeved with the base, a pulling force is applied to the warning plate 2. The extension plate on the right side of the warning plate 2 will slide in the slide groove through the slider. When the warning plate 2 moves, a rotational force is applied to the rotating plate. When the rotating plate rotates, it will drive the coil spring to deform. When the warning plate 2 moves to the appropriate position, the rotating plate is released. The reset rotating plate will engage with the limiting plate. The warning device enables the warning plate 2 to achieve the function of position adjustment through the cooperation between the extension plates. The limiting structure can be used to position the extended warning plate 2, avoiding the phenomenon of the warning plate 2 becoming loose due to external force. This ensures the flexibility of the warning plate and reduces the subsequent operation procedures.
[0014] (2) By setting a groove and a slider, when the second warning plate is pulled, the extension plate on the right side of the second warning plate will slide in the groove through the slider, so that the groove and the slider play a certain guiding role for the movement of the extension plate, and avoid the extension plate from falling off the first warning plate during the movement. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the thermal pipeline body of this utility model;
[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0018] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;
[0019] In the diagram: 1. Base; 2. Thermal pipe body; 3. Warning plate one; 4. Extension plate; 5. Warning plate two; 6. Limiting structure; 601. Fixed column; 602. Rotating plate; 603. Coil spring; 604. Bolt; 605. Limiting column; 606. Limiting disc; 607. Fixed disc; 7. Auxiliary rod; 8. Connecting piece; 9. Mounting rod; 10. Slide groove; 11. Slider. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown, in this embodiment, the direct-buried heating pipeline protection and early warning device includes a base 1, a heating pipeline body 2 is attached above the base 1, an early warning plate 3 is sleeved on the heating pipeline body 2, an extension plate 4 is slidably connected inside the early warning plate 3, an early warning plate 5 is fixedly connected to one side of the extension plate 4, an auxiliary rod 7 is fixedly connected to one side of the base 1, and a limiting structure 6 is fixedly connected to the other side of the base 1. The limiting structure 6 is connected to the early warning plate 5. The limiting structure 6 includes a fixed column 601, a limiting column 605, and a limiting plate 606. A fixed plate 607 is fixedly connected to one end of the fixed column 601, a rotating plate 602 is rotatably connected to the outside of the fixed column 601, a coil spring 603 is sleeved on the fixed column 601, and a bolt 604 is provided inside the rotating plate 602.
[0022] like Figure 1 and Figure 3As shown, a connecting piece 8 is fitted over the outer sleeve of the heat pipe body 2. An installation rod 9 is provided inside the connecting piece 8. The connecting piece 8 is connected to the base 1 through the installation rod 9. An auxiliary rod 7 is snapped into the warning plate 3. A warning plate 5 is fitted over the outer sleeve of the heat pipe body 2. The warning plate 3 overlaps with the base 1. A fixing post 601 is fixedly connected to the outside of the base 1. A limiting post 605 is fixedly connected to one side of the warning plate 5. A limiting plate 606 is fixedly connected to the outside of the limiting post 605. A rotating plate 602 is snapped into the limiting plate 606. The rotating plate 602 is connected to the fixing plate 607 through a coil spring 603. The rotating plate 602 is connected to the fixing post 601 through a bolt 604.
[0023] By setting bolt 604, the rotating plate 602 will drive the coil spring 603 to deform when it rotates. The rotating plate 602 will be reset by the action of the coil spring 603. After being reset, the rotating plate 602 will be engaged with the limit plate 606. Then, the rotating plate 602 will be threadedly connected to the fixed column 601 by bolt 604, so that the position of the rotating plate 602 can be self-locked, enabling the early warning plate 2 5 and the thermal pipe body 2 to achieve the function of rapid assembly.
[0024] like Figure 4 As shown, a groove 10 is provided inside the warning plate 3, and a slider 11 is fixedly connected to the outside of the extension plate 4. The slider 11 is slidably connected inside the groove 10.
[0025] By setting the slide groove 10 and the slider 11, when a pulling force is applied to the second warning plate 5, the extension plate 4 on the right side of the second warning plate 5 will slide in the slide groove 10 through the slider 11, so that the slide groove 10 and the slider 11 play a certain guiding role in the movement of the extension plate 4, and prevent the extension plate 4 from falling off the first warning plate 3 during the movement.
[0026] This utility model provides a protection and early warning device for directly buried heating pipelines, the specific working principle of which is as follows:
[0027] When the warning device is installed, the heat pipe body 2 is first placed on top of the base 1. Then, the heat pipe body 2 is connected to the base 1 through the connecting piece 8 and the mounting rod 9. When the heat pipe body 2 is connected, the warning plate 3 is sleeved on the base 1. The auxiliary rod 7 on the right side of the base 1 will be engaged with the warning plate 3. When a pulling force is applied to the warning plate 5, the extension plate 4 on the right side of the warning plate 5 will slide in the slide groove 10 through the slider 11. When the warning plate 5 moves, it applies a rotational force to the rotating plate 602. The rotating plate 602 will rotate around the fixed column 601. When the rotating plate 602 rotates, it will cause the coil spring 603 to deform. When the warning plate 5 moves to the appropriate position, the rotating plate 602 is released. The rotating plate 602 will be reset by the action of the coil spring 603. After being reset, the rotating plate 602 will be engaged with the limit plate 606. Then, the rotating plate 602 is threadedly connected to the fixed column 601 through the bolt 604.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A protection and early warning device for directly buried heating pipelines, comprising a base (1), characterized in that: A heat pipe body (2) is attached above the base (1). A warning plate (3) is attached to the outer sleeve of the heat pipe body (2). An extension plate (4) is slidably connected inside the warning plate (3). A warning plate (5) is fixedly connected to one side of the extension plate (4). An auxiliary rod (7) is fixedly connected to one side of the base (1). A limiting structure (6) is fixedly connected to the other side of the base (1). The limiting structure (6) is connected to the warning plate (5). The limiting structure (6) includes a fixed column (601), a limiting column (605), and a limiting plate (606). A fixed plate (607) is fixedly connected to one end of the fixed column (601). A rotating plate (602) is rotatably connected to the outside of the fixed column (601). A coil spring (603) is attached to the outer sleeve of the fixed column (601). A bolt (604) is provided inside the rotating plate (602).
2. The protection and early warning device for directly buried heating pipelines according to claim 1, characterized in that: The heat pipe body (2) is fitted with a connecting piece (8), and the connecting piece (8) is provided with an installation rod (9). The connecting piece (8) is connected to the base (1) through the installation rod (9).
3. The protection and early warning device for directly buried heating pipelines according to claim 1, characterized in that: The auxiliary rod (7) is snapped into the first warning plate (3), the second warning plate (5) is sleeved on the outside of the heat pipe body (2), and the first warning plate (3) overlaps with the base (1).
4. The protection and early warning device for directly buried heating pipelines according to claim 1, characterized in that: The fixed column (601) is fixedly connected to the outside of the base (1), the limiting column (605) is fixedly connected to one side of the warning plate (5), and the limiting plate (606) is fixedly connected to the outside of the limiting column (605).
5. The protection and early warning device for directly buried heating pipelines according to claim 1, characterized in that: The rotating plate (602) is engaged with the limiting plate (606), the rotating plate (602) is connected to the fixed plate (607) through the coil spring (603), and the rotating plate (602) is connected to the fixed column (601) through the bolt (604).
6. The protection and early warning device for directly buried heating pipelines according to claim 1, characterized in that: The warning plate (3) has a groove (10) inside, and the extension plate (4) is fixedly connected to a slider (11), which is slidably connected in the groove (10).
Citation Information
Patent Citations
Directly-buried heat distribution pipeline protection early warning device
CN217762656U