Ground source heat pump anti-floating mechanism

Abstract

The utility model relates to a ground source heat pump ground -buried pipe anti -floating mechanism, including pipeline, the resistance and touch platform, stake and prevent the mechanism of falling off, the pipeline is installed in the soil, the resistance and touch platform is located the top of pipeline, and is located the top of soil, two stakes are fixedly installed in the resistance and touch platform, prevent the mechanism of falling off is installed in the stake, and the pipeline is buried into the soil, and two stakes in the resistance and touch platform are inserted into the soil, and impact wear -resisting frame and drive the resistance and touch platform to move down, make the resistance and touch platform bottom wireless close to the top of pipeline, subsequently through spanner rotation nut drive adjusting rod rotation, and adjusting rod surface screw thread part and push piece inner thread installation, can drive push piece moves in the chamber, push piece moves up and drive three inclined rods swing, respectively extrude three push rod rotation, push rod top from rectangular groove separates, form barb in the soil, avoid the resistance and touch platform move up, can rotate double thread rod simultaneously, drive two clamping plates close to each other, clamping plate one side arc groove is suitable for pipeline, and has the supplementary clamping effect to the pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of ground source heat pump equipment, specifically a ground source heat pump buried pipe anti-buoyancy mechanism. Background Technology

[0002] As the core carrier of heat exchange, buried pipes need to be buried in the underground soil layer for a long time. However, due to the characteristics of the soil layer and the construction process, buried pipes are prone to floating after installation: on the one hand, the pore water pressure between soil particles will generate a continuous upward buoyancy force on the pipe, especially when the groundwater level rises or the soil around the pipe consolidates and settles, the buoyancy effect is more significant; on the other hand, traditional buried pipe fixing methods mostly rely on gravity ballast or simple support limit, such methods lack targeted anti-detachment structures, when the buoyancy exceeds the fixing force, the pipe is prone to vertical displacement, resulting in loose pipe joints, reduced heat exchange efficiency, and in severe cases, damage to the surrounding soil structure, increasing system maintenance costs and safety hazards. In existing technologies, although some limiting devices attempt to fix the top of the pipe by inserting stakes, the stakes are mostly smooth rod-shaped structures. After being inserted into the soil, they rely solely on friction to resist buoyancy. Under long-term vibration (such as disturbance from surrounding construction) or soil creep, the stakes are prone to come out of the soil, making it impossible to achieve stable limiting and effectively solve the key problem of buried pipe floating. Therefore, we need to provide a ground source heat pump buried pipe anti-buoyancy mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a ground source heat pump buried pipe anti-floating mechanism, which sets an anti-detachment mechanism inside the stake. When the stake is inserted into the soil, it can push the push rod out to form a barb shape, thereby achieving the anti-detachment effect of the anti-collision platform, and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a ground source heat pump buried pipe anti-buoyancy mechanism, comprising: The system includes a pipe, a contact platform, stakes, and an anti-detachment mechanism. The pipe is installed in the soil, the contact platform is located at the top of the pipe and at the top of the soil, two stakes are fixedly installed inside the contact platform, and the anti-detachment mechanism is installed inside the stakes to prevent the stakes from detaching. The anti-detachment mechanism includes a chamber, rectangular grooves, and push rods. The chamber is located inside the stake. The stake has three evenly distributed rectangular grooves on its surface. The push rods are installed in the rectangular grooves and are rotatably mounted inside the chamber. The chamber is equipped with a transmission component for the synchronous swinging of the three push rods.

[0005] Preferably, the transmission component includes an adjusting rod, a push block, and a diagonal rod. The adjusting rod is rotatably mounted in the cavity, and the push block is threaded onto its surface. The diagonal rod is hinged between the push rod and the push block.

[0006] Preferably, a support plate is rotatably mounted on the lower end of the adjusting rod, the support plate is fixed in the cavity, and the upper end of the adjusting rod passes through the top of the stake and is fitted with a nut.

[0007] Preferably, a tapered head is threaded onto the bottom opening of the stake.

[0008] Preferably, a frame is fixedly installed on one side of the contact platform, and a double-threaded rod is rotatably installed inside the frame. Clamping plates are threaded on both sides of the surface of the double-threaded rod, and an arc-shaped groove adapted to the pipe is provided on one side of the clamping plate.

[0009] Preferably, a protective adhesive layer is provided inside the arc-shaped groove and at the bottom of the contact platform.

[0010] Preferably, a wear-resistant frame is fixedly installed on the top of the contact platform.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model incorporates an anti-detachment mechanism within the insertion pile. After the insertion pile is inserted into the soil, the push rod can be pushed outward to form a barbed structure. The barbs can mechanically engage with soil particles, breaking through the limitations of traditional smooth insertion piles that rely solely on friction. Even when encountering soil creep, vibration disturbance, or water level changes, the barbs can firmly contact the deep soil layer, effectively preventing the insertion pile from detaching and thus ensuring a stable and lasting limiting effect of the contact platform on the pipeline. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a front sectional view of the structure of this utility model; Figure 3 This is a three-dimensional bottom view of the structure of this utility model; Figure 4 This is a three-dimensional sectional view of the frame of this utility model; Figure 5 This is a three-dimensional sectional view of the pile driven in this utility model.

[0013] In the diagram: 1. Pipe; 2. Contact platform; 3. Insertion stake; 4. Anti-detachment mechanism; 41. Chamber; 42. Rectangular groove; 43. Push rod; 5. Transmission component; 51. Adjusting rod; 52. Push block; 53. Diagonal rod; 6. Support plate; 7. Nut; 8. Conical head; 9. Frame; 10. Double threaded rod; 11. Clamping plate; 12. Arc groove; 13. Protective adhesive layer; 14. Wear-resistant frame. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This utility model provides a technical solution: a ground source heat pump buried pipe anti-buoyancy mechanism, comprising: Pipe 1, contact platform 2, stake 3 and anti-detachment mechanism 4. Pipe 1 is installed in the soil. Contact platform 2 is located on top of pipe 1 and on top of the soil. Two stakes 3 are fixedly installed inside contact platform 2. Anti-detachment mechanism 4 is installed inside stakes 3 to prevent stakes 3 from detaching. The anti-detachment mechanism 4 includes a chamber 41, a rectangular groove 42 and a push rod 43. The chamber 41 is opened inside the insert 3. The surface of the insert 3 has three evenly distributed rectangular grooves 42. The push rod 43 is installed in the rectangular grooves 42. The push rod 43 is rotatably installed in the chamber 41. The chamber 41 is equipped with a transmission component 5 for the synchronous swing of the three push rods 43. Specifically, an anti-detachment mechanism 4 is installed inside the stake 3. When the stake 3 is inserted into the soil, the push rod 43 can be pushed out to form a barb shape, thereby achieving the anti-detachment effect of the contact platform 2. After the stake 3 is inserted into the soil, the push rod 43 can be pushed out to form a barb-shaped structure. The barb can form a mechanical engagement with the soil particles, breaking through the limitation of the traditional smooth stake 3 relying only on friction. Even if it encounters soil creep, vibration disturbance or water level changes, the barb can firmly hold the deep soil layer, effectively preventing the stake 3 from coming out, thereby ensuring that the limiting effect of the contact platform 2 on the pipeline 1 is stable and lasting.

[0016] The transmission component 5 includes an adjusting rod 51, a push block 52, and a diagonal rod 53. The adjusting rod 51 is rotatably installed in the chamber 41, and the push block 52 is threaded on its surface. The diagonal rod 53 is hinged between the push rod 43 and the push block 52. Furthermore, the adjusting rod 51 is rotatably mounted in the chamber 41 via a deep groove ball bearing. The outer surface of the adjusting rod 51 is machined with a trapezoidal external thread, and the inner hole of the push block 52 is machined with a matching trapezoidal internal thread. The adjusting rod 51 and the push block 52 are detachably connected through thread engagement. One end of the push rod 43 near the center of the chamber 41 is fixed with an ear plate. Both ends of the inclined rod 53 are hinged to the side wall of the push block 52 and the ear plate of the push rod 43 via pins, respectively. The clearance between the pins and the ear plate / push block 52 is controlled within 0.05-0.1 mm. The adjusting rod 51 is made of 45# steel. After heat treatment, the surface of the inclined rod 53 is also coated with a 15-20μm thick epoxy resin coating. Through the self-locking characteristics of the trapezoidal thread, the push block 52 is prevented from shifting under soil pressure. The deep groove ball bearing reduces the rotational resistance of the adjusting rod 51, ensuring that the three inclined rods 53 drive the push rod 43 to swing synchronously. The 45# steel adjusting rod 51 ensures torsional strength, the Q355B inclined rod 53 improves the load-bearing capacity, and the epoxy resin coating prevents the inclined rod 53 from rusting. This solves the problems of easy jamming and corrosion of traditional transmission parts 5 and poor anti-detachment effect caused by inconsistent extension of the push rod 43.

[0017] The lower end of the adjusting rod 51 is rotatably mounted with a support plate 6, which is fixed inside the chamber 41. The upper end of the adjusting rod 51 passes through the top of the stake 3 and is fitted with a nut 7. It should be noted that the lower end of the adjusting rod 51 is rotatably mounted on the upper surface of the support plate 6 via a thrust ball bearing. The support plate 6 is a circular steel plate with its edges fixed to the inner wall of the chamber 41 by welding. The welding joint uses fillet welds and has been tested for cracks. The upper end of the adjusting rod 51 passes through the through hole at the top of the insert 3, and a fluororubber sealing ring is fitted between the through hole and the adjusting rod 51. The top end of the adjusting rod 51 is connected to the nut 7 via a flat key. The thrust ball bearing bears the axial pressure generated on the adjusting rod 51 when the push block 52 moves upward, thus preventing wear on the lower end of the adjusting rod 51. The fluororubber sealing ring is suitable for humid soil environments, preventing moisture from seeping into the chamber 41 and corroding the transmission components 5.

[0018] A tapered head 8 is threaded onto the bottom opening of the pile 3; It is worth noting that the conical head 8 is made of ZG230-450 cast steel. The top of the conical head 8 is machined with a suitable cylindrical pipe thread. The stake 3 and the conical head 8 are connected by a threaded seal, and the threaded connection is wrapped with polytetrafluoroethylene raw material tape. The cast steel conical head 8 has high hardness and impact resistance, which makes it easy for the stake 3 to be inserted into hard soil. The polytetrafluoroethylene raw material tape enhances the thread sealing effect and prevents soil particles from entering the thread gap. The detachable design, combined with the large opening at the bottom of the stake 3, allows the chamber 41 to be flushed through the opening with a high-pressure water gun.

[0019] A frame 9 is fixedly installed on one side of the contact table 2. A double threaded rod 10 is rotatably installed inside the frame 9. Clamping plates 11 are threaded on both sides of the surface of the double threaded rod 10. An arc groove 12 adapted to the pipe 1 is provided on one side of the clamping plate 11. Among them, the two side walls of the frame 9 are machined with coaxial light holes, and the two ends of the double threaded rod 10 are installed in the light holes through sliding bearings. The outer surface of the double threaded rod 10 is machined with fine threads in both left and right directions. The inner hole of the clamping plate 11 is machined with matching fine internal threads. One end of the double threaded rod 10 is also fixed with a hexagonal wrench operating head. The arc groove 12 in the clamping plate 11 is opened on the inner side of the vertical section of the clamping plate 11. The radius of the arc groove 12 is 1-2mm larger than the outer diameter of the pipe 1. The horizontal section of the clamping plate 11 is detachably connected to the bottom of the frame 9 by bolts.

[0020] Both the arc-shaped groove 12 and the bottom of the contact platform 2 are provided with protective adhesive layers 13; Specifically, the protective adhesive layer 13 inside the arc-shaped groove 12 is made of nitrile rubber and is bonded and fixed to the inner wall of the arc-shaped groove 12 by epoxy resin adhesive; the protective adhesive layer 13 at the bottom of the contact platform 2 is made of EPDM rubber and is bonded to the bottom surface of the contact platform 2 by hot pressing molding process; both protective adhesive layers 13 have diamond-shaped anti-slip textures on their surfaces. Nitrile rubber has excellent oil resistance and elasticity, preventing the outer anti-corrosion layer of the pipe 1 from being scratched when clamped by the clamping plate 11; EPDM rubber has strong weather resistance and adapts to changes in soil temperature, preventing the contact platform 2 from making hard contact with the pipe 1 and causing damage to the pipe 1; the anti-slip textures enhance the friction between the adhesive layer and the pipe 1 and the soil.

[0021] A wear-resistant frame 14 is fixedly installed on the top of the contact platform 2; The wear-resistant frame 14 is a frame structure made of high manganese steel. The inner side of the wear-resistant frame 14 is fixedly connected to the top edge of the contact platform 2 by submerged arc welding. High manganese steel has high wear resistance and a hardened layer will form on the surface when subjected to impact, so as to prevent the top of the contact platform 2 from being damaged during installation impact.

[0022] All threaded mounting surfaces in this application utilize a modified triangular thread with a self-locking function. The thread helix angle is designed to be 1.5°-2.5° to enhance the anti-loosening effect. After phosphating, the thread surface is coated with an 8-12μm Dacromet coating and impregnated with silicone sealant to form a sealing layer, resulting in excellent corrosion resistance. In addition, the thread can effectively expel dust, and it can still be used normally even if a small amount of dust adheres to it.

[0023] This device buries the pipe 1 in the soil, inserts two stakes 3 in the contact platform 2 into the soil, and impacts the wear-resistant frame 14 to move the contact platform 2 downward, so that the bottom of the contact platform 2 is close to the top of the pipe 1. Then, by turning the nut 7 with a wrench, the adjusting rod 51 is rotated. The threaded part of the adjusting rod 51 is installed with the internal thread of the push block 52, which can drive the push block 52 to move in the chamber 41. The push block 52 moves upward, causing the three inclined rods 53 to swing, which respectively squeeze the three push rods 43 to rotate. The top of the push rod 43 disengages from the rectangular groove 42 and forms a barb shape in the soil to prevent the contact platform 2 from moving upward. At the same time, the double threaded rod 10 can be rotated to drive the two clamping plates 11 to move closer to each other. The arc groove 12 on one side of the clamping plate 11 is adapted to the pipe 1 and provides an auxiliary clamping effect for the pipe 1. The bottom of the stake 3 is threaded with the conical head 8, which can be removed. The bottom opening of the stake 3 is large, which facilitates the flushing and cleaning of the soil in the chamber 41.

[0024] 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 ground source heat pump buried pipe anti-buoyancy mechanism, characterized in that, include: Pipe (1), contact platform (2), stake (3) and anti-detachment mechanism (4), wherein the pipe (1) is installed in the soil, the contact platform (2) is located at the top of the pipe (1) and at the top of the soil, two stakes (3) are fixedly installed inside the contact platform (2), and the anti-detachment mechanism (4) is installed inside the stakes (3) for preventing the stakes (3) from detaching; The anti-detachment mechanism (4) includes a chamber (41), a rectangular groove (42), and a push rod (43). The chamber (41) is located inside the stake (3). The stake (3) has three evenly distributed rectangular grooves (42) on its surface. The push rod (43) is installed inside the rectangular groove (42). The push rod (43) is rotatably installed inside the chamber (41). The chamber (41) is equipped with a transmission component (5) for the three push rods (43) to swing synchronously.

2. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 1, characterized in that: The transmission component (5) includes an adjusting rod (51), a push block (52) and a diagonal rod (53). The adjusting rod (51) is rotatably installed in the chamber (41) and the push block (52) is threaded on its surface. The diagonal rod (53) is hinged between the push rod (43) and the push block (52).

3. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 2, characterized in that: The lower end of the adjusting rod (51) is rotatably mounted with a support plate (6), which is fixed in the chamber (41). The upper end of the adjusting rod (51) passes through the top of the stake (3) and is fitted with a nut (7).

4. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 3, characterized in that: A tapered head (8) is threaded onto the bottom opening of the stake (3).

5. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 1, characterized in that: A frame (9) is fixedly installed on one side of the contact platform (2), and a double threaded rod (10) is rotatably installed inside the frame (9). Both sides of the surface of the double threaded rod (10) are threaded with clamps (11), and one side of the clamps (11) is provided with an arc groove (12) adapted to the pipe (1).

6. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 5, characterized in that: The arc-shaped groove (12) and the bottom of the contact platform (2) are both provided with a protective adhesive layer (13).

7. The ground source heat pump buried pipe anti-buoyancy mechanism according to claim 1, characterized in that: A wear-resistant frame (14) is fixedly installed on the top of the contact platform (2).

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