Buried pipe anti-floating device

Abstract

The utility model discloses an anti-floating device for a buried pipe. The anti-floating device comprises a fixing ring, the buried pipe and a barb pipe, the fixing ring comprises a fixing ring wall, a buried pipe clamping ring and a barb clamping ring, the buried pipe clamping ring and the barb clamping ring are arranged on the fixing ring wall, the buried pipe penetrates through the buried pipe clamping ring to be connected with the fixing ring wall, the barb pipe comprises a vertical pipe and a radian pipe located below the vertical pipe, and the vertical pipe penetrates through the barb clamping ring to be connected with the fixing ring wall. The fixing device consists of the fixing ring and the barb pipe, and is simple in structure and easy to manufacture and install.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipe engineering, in particular to a buried pipe anti-floating device. Background Art

[0002] In geothermal heat pump systems, underground pipes are typically buried vertically to a certain depth. Because the mud generated during drilling is heavier than the material and water used to build the vertically buried pipes, it creates significant buoyancy. If the groundwater level is high or the soil conditions are unusual, the pipes may float upward after installation due to this buoyancy. This can cause unnecessary rework and even compromise the stability and safety of the system. The main function of an anti-floating device for underground pipes is to provide a fixed position or downward force through various means to counteract buoyancy and ensure the stability of the pipes underground. Currently, existing anti-floating measures for underground pipes present complex structures, difficult installation, and high costs. Utility Model Content

[0003] In order to solve the above-mentioned problems, the present invention provides a device for preventing underground pipes from floating up.

[0004] To achieve the above-mentioned purpose, the utility model provides a buried pipe anti-floating device, comprising a fixing ring, a buried pipe and a barbed pipe;

[0005] The fixed ring includes a fixed ring wall and a buried pipe clamp and a barb clamp provided on the fixed ring wall. The buried pipe passes through the buried pipe clamp and is connected to the fixed ring wall. The barb pipe includes a vertical pipe and a curved pipe located below the vertical pipe. The vertical pipe passes through the barb clamp and is connected to the fixed ring wall.

[0006] Preferably, the buried pipe clamp and the barb clamp are both provided with anti-slip threads, and upper portions of the buried pipe and the barb pipe are provided with external threads matching the anti-slip threads.

[0007] Preferably, the fixed ring wall is cylindrical and comprises two identical semi-cylinders.

[0008] Preferably, a bolt hole is provided on the fixing ring wall, and bolts are passed through the bolt holes to fix the two semi-cylindrical bodies in connection.

[0009] Preferably, the fixing ring is made of PE material.

[0010] Preferably, the buried pipe and the barbed pipe are both PE pipes.

[0011] Preferably, the curved tube is connected to the vertical tube in an inclined manner.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model consists of two parts, a fixing ring and a barbed pipe, and has a simple structure and is easy to manufacture and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the fixing ring structure in the utility model. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0017] 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 positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on 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.

[0018] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] The following is combined with Figure 1-2 The utility model is further described in detail:

[0020] Reference Figure 1 The utility model provides a buried pipe anti-floating device, comprising a fixing ring 1, a buried pipe 3 and a barbed pipe 2;

[0021] The fixing ring 1 includes a fixing ring wall 6 and a buried pipe clamp 4 and a barb clamp 5 provided on the fixing ring wall 6. The buried pipe 3 passes through the buried pipe clamp 4 and is connected to the fixing ring wall 6. The barb pipe 2 includes a vertical pipe and a curved pipe located below the vertical pipe. The vertical pipe passes through the barb clamp 5 and is connected to the fixing ring wall 6.

[0022] In this embodiment, a retaining ring 1 is designed to fit over the underground pipe 3. The size of the retaining ring 1 can be selected based on the design of the pipe diameter. The retaining ring 1 is made of PE material, which provides excellent durability and stability while preventing damage to the underground pipe 3 or the retaining ring 1 due to varying material strengths. The contact area with the underground pipe 3 features a striped, non-slip design, ensuring a secure attachment to the underground pipe 3. The barb tube 2 is made of the same material as the underground pipe 3 and, when above ground, is an 800mm, slightly curved PE tube. It is connected to the retaining ring 1 in the same manner as the underground pipe 3. Before being lowered into the well, it initially extends downward in an inclined position. Once in the well, it is compressed by the well wall and exerted downward force, causing it to bend upward at the connection point with the retaining ring 1 to form a barb. The number of barb tubes 2 can be adjusted according to actual needs. The retaining ring 1 is connected to the inlet and outlet pipes of the underground pipe 3. The barb, upon being subjected to buoyancy, firmly penetrates the well wall or underground soil, preventing the underground pipe 3 from floating up.

[0023] Before installation, the length of the barb tube 2 should be designed based on the wellbore diameter and stratum structure to avoid device failure due to insufficient barb tube 2 or waste of material due to excessively long barb tube 2. During installation, the buried pipe 3 and the barb tube 2 are connected using the fixing ring 1 and adjusted to the appropriate position. The installation position can be determined based on the length of the buried pipe 3, the designed height of the buried pipe 3 pipe opening, and the stratum structure. Generally, it should be located approximately 20 meters below the designed height of the buried pipe 3 pipe opening to prevent the buried pipe 3 from floating up and to avoid construction irreversibility caused by premature installation of this device. Two sets of this device should be installed for each set of buried pipe 3, with the upper and lower spacing controlled within 2 meters. One set should be installed for each inlet and outlet of the single U-shaped buried pipe 3, and the double U-shaped buried pipe 3 should be installed diagonally.

[0024] Reference Figure 2 Both the buried pipe clamp 4 and the barb clamp 5 have anti-slip threads 8. Portions of the buried pipe 3 and the barb 2 have external threads that match the anti-slip threads 8. The fixed ring wall 6 is cylindrical and consists of two identical semi-cylindrical parts. Bolt holes 9 are provided in the fixed ring wall 6, through which bolts 7 securely connect the two semi-cylindrical parts.

[0025] In this embodiment, a retaining ring 1 secures the barb tube 2 and the underground pipe 3 together in the ground. Before being lowered into the well, the barb tube 2 initially extends downward in an inclined position. After being lowered into the well, the barb tube 2 is compressed by the well wall and exerts a downward force, causing it to bend upward at the position of the barb 2-1 to form a barb. When the underground pipe 3 is subjected to buoyancy, the retaining ring 1 transmits this buoyancy to the barb tube 2, creating an upward force. This force forces the barb tube 2 firmly into the well wall or underground soil, thereby preventing the underground pipe 3 from floating up. The retaining ring 1 consists of two identical parts, front and back, as shown in the AA cross-sectional view. The underground pipe clasp 4 and the barb clasp 5 are selected according to the diameter of the underground pipe 3 and are both provided with anti-slip threads 8. During installation, the two parts are fastened together by fixing bolts 7 through fixing bolt holes 9 to form a complete retaining ring 1. The retaining ring wall 6 serves as the main support for the retaining ring 1 and is made of the same material as the underground pipe 3.

[0026] The present application consists of two parts: a fixing ring 1 and a barb tube 2. It has a simple structure and is easy to manufacture and install. It is only necessary to use the fixing ring 1 to fix the barb tube 2 on the buried pipe 3, and then the buried pipe 3 can be constructed normally without the need for a complicated construction process. The waste generated during the construction of the buried pipe 3 can be easily processed into barb tubes, which is waste utilization and low cost. The barb can be firmly inserted into the well wall, effectively resisting the buoyancy of the buried pipe 3 and preventing the buried pipe 3 from floating up. There are no strict limitations on the installation position of the device. It can be adjusted according to the length of the buried pipe 3 and the construction habits. The corresponding fixing ring 1 is selected according to the buried pipe 3 of different diameters, and the fixing quality is guaranteed. This makes the device of the present application suitable for buried pipes 3 of different specifications and different construction environments.

[0027] Example 1

[0028] The present invention's underground pipe 3 was employed in a ground-source heat pump project. First, a retaining ring 1 of appropriate size was selected based on the diameter of the underground pipe 3, and the barb was secured to the underground pipe 3 using the retaining ring 1. The underground pipe 3, equipped with the anti-floating device, was then sunk into a pre-installed well. The barb tube 2, subjected to pressure from the well wall and downward force, formed a barb that penetrated the well wall, preventing the surface pipe from floating. During construction, even when the groundwater level rose, the underground pipe 3 did not float, demonstrating the effective anti-floating device of the present invention.

[0029] Implementation Case 2

[0030] In another project, the underground pipe 3 was installed in a complex environment with soft soil. To enhance the anti-floating effect, the length of the barbed pipe 2 was lengthened. After installation, after a period of observation, the underground pipe 3 remained stable and was not affected by buoyancy.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A buried pipe anti-floating device, characterized in that: It includes a fixed ring, a buried pipe and a barb pipe; the fixed ring includes a fixed ring wall and a buried pipe clamp and a barb clamp provided on the fixed ring wall; the buried pipe passes through the buried pipe clamp and is connected to the fixed ring wall; the barb pipe includes a vertical pipe and a curved pipe located below the vertical pipe; the vertical pipe passes through the barb clamp and is connected to the fixed ring wall.

2. The underground pipe anti-floating device according to claim 1, characterized in that: Anti-slip threads are provided in the underground pipe clamping ring and the barb clamping ring, and upper portions of the underground pipe and the barb pipe are provided with external threads matching the anti-slip threads.

3. The underground pipe anti-floating device according to claim 2, characterized in that: The fixed ring wall is cylindrical and includes two identical semi-cylinders.

4. The underground pipe anti-floating device according to claim 3, characterized in that: The fixing ring wall is provided with bolt holes, and bolts are passed through the bolt holes to fix the two semi-cylindrical shapes in connection.

5. The underground pipe anti-floating device according to claim 1, characterized in that: The fixing ring is made of PE material.

6. The underground pipe anti-floating device according to claim 1, characterized in that: The buried pipe and the barbed pipe are both PE pipes.

7. The underground pipe anti-floating device according to claim 1, characterized in that: The arc tube is connected to the vertical tube in an inclined shape.

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