Sand backfill protection structure for ground source heat pump pipeline foundation pit
By installing a worm shaft driven sleeve structure on the outside of the heat pump pipeline, the problem of damage to the ground source heat pump pipeline due to the impact force of the soil during the backfilling of the foundation pit is solved, achieving both effective protection and heat conduction function.
Patent Information
- Application Number
- CN202211612943.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-15
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2042-12-15
AI Technical Summary
Ground source heat pump pipelines are easily damaged by the impact of soil excavation during the backfilling process of the foundation pit, and existing technologies lack effective protective measures.
The casing is composed of a first half-pipe and a second half-pipe, which is fitted onto the outside of the heat pump pipeline. The worm shaft drives the worm wheel to rotate, and the connecting arm drives the baffle to tilt and guide the soil and rock to relieve the pressure. The pipeline is protected by thermally conductive copper and elastic beryllium copper alloy materials.
It effectively avoids the impact of earth and stone excavation on the heat pump pipes, ensuring that the pipes are not damaged. At the same time, it has a heat conduction function, does not affect normal use, and is easy to disassemble.
Smart Images
Figure CN116906674B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ground source heat pump, in particular to a ground source heat pump pipeline foundation pit sand backfill protection structure. BACKGROUND
[0002] The ground source heat pump heating and air conditioning system is mainly divided into three parts: the outdoor ground heat exchange system, the ground source heat pump unit and the indoor heating and air conditioning terminal system, wherein the ground source heat pump unit mainly has two forms: water-water type or water-air type, the heat transfer between the three systems is realized by water or air heat exchange medium, the heat exchange medium between the ground source heat pump and the ground energy is water, and the heat exchange medium of the building heating and air conditioning terminal can be water or air, the ground source heat pump is widely used in building construction in recent years, and usually needs to bury the pipeline below the ground of the building, the pipeline is led out in the foundation pit, and then enters the building;
[0003] Generally, the pipeline is vertically arranged in the foundation pit, in the process of backfilling the foundation pit, the filled earthwork needs to be poured into the foundation pit, and then the pipeline is fixed by tamping, in the pouring process, the earthwork will impact on the pipeline due to the impact force, and the outer surface of the pipeline is easy to be damaged, and in the prior art, there is no tool to solve this problem, therefore, the ground source heat pump pipeline foundation pit sand backfill protection structure is provided to solve the problems in the prior art. SUMMARY
[0004] In view of the above problems, the ground source heat pump pipeline foundation pit sand backfill protection structure is provided, which is beneficial to guiding the unloading of the earthwork and avoiding the direct action of the impact force on the heat pump pipeline.
[0005] In order to achieve the purpose of the present application, the following technical scheme is adopted: the ground source heat pump pipeline foundation pit sand backfill protection structure comprises a first half pipe and a second half pipe, the first half pipe and the second half pipe form a sleeve pipe, the sleeve pipe is sleeved outside the heat pump pipeline, middle slots are arranged at the middle positions inside the first half pipe and the second half pipe, worm shafts are rotatably arranged inside the middle slots, notches are arranged at the middle positions outside the first half pipe and the second half pipe, and a plurality of groups of notches are equidistantly arranged on the first half pipe and the second half pipe.
[0006] Worm wheels are rotatably arranged inside the notches, the notches are communicated with the middle slots, the worm wheels are matched with the worm shafts, connecting arms are connected to the worm wheels, baffles are arranged on the connecting arms, and the baffles are arc-shaped.
[0007] Further improvement lies in that: the outer sides of the first half pipe and the second half pipe are provided with embedded grooves, a plurality of groups of embedded grooves are equidistantly arranged on the first half pipe and the second half pipe, and the baffles are matched with the embedded grooves.
[0008] Further improvement lies in that the two ends of the inner side of the baffle are provided with springs, and the springs are connected to the inside of the embedded groove.
[0009] Further improvement lies in that the inner side of the first half pipe and the second half pipe is provided with heat-conducting cotton, and the heat-conducting cotton is filled between the sleeve pipe and the heat pump pipeline.
[0010] Further improvement lies in that the four corners of the inner side of the first half pipe are rotatably provided with screw rods, the four corners of the inner side of the second half pipe are provided with threaded grooves, and the screw rod is matched with the threaded groove.
[0011] Further improvement lies in that the two ends of the inside of the first half pipe are provided with side grooves, and a rotating shaft is rotatably arranged in the inside of the side groove, and the upper end of the rotating shaft extends out of the side groove, and the upper end of the rotating shaft is provided with a knob.
[0012] Further improvement lies in that the inner side of the screw rod of the two ends respectively extends to the inside of the side groove of the two ends, and the inner side of the screw rod is provided with a first bevel gear, the upper and lower ends of the outer side of the rotating shaft are provided with a second bevel gear, and the second bevel gear is matched with the first bevel gear.
[0013] Further improvement lies in that the two ends of the top of the second half pipe are provided with hooks, and the hooks are integrally formed with the second half pipe.
[0014] Further improvement lies in that the first half pipe and the second half pipe are made of heat-conducting copper, and the connecting arm and the baffle are made of elastic beryllium copper alloy.
[0015] The beneficial effects of the present application are:
[0016] 1. The first half pipe and the second half pipe are combined into a sleeve pipe and sleeved on the outer side of the heat pump pipeline. When the earthwork is poured, the connecting arm is rotated by rotating the worm shaft to drive the worm gear to rotate, so that the baffle is rotated and inclined at a certain angle, which is beneficial to guide and unload the earthwork and avoid the impact force acting directly on the heat pump pipeline.
[0017] 2. Before the earthwork is rammed, the knob can be rotated to drive the rotating shaft to rotate, so that the second bevel gear is rotated to drive the first bevel gear to rotate, so that the screw rod is rotated, and the screw rod is pushed out from the threaded groove by the thread action, so that the first half pipe and the second half pipe are loosened. At this time, the sleeve pipe can be pulled out upward by the lifting appliance by pulling the hook, and then the first half pipe and the second half pipe are separated by rotating the screw rod, so that the sleeve pipe can be disassembled, which is more convenient.
[0018] 3. The first half pipe and the second half pipe are made of heat-conducting copper, and the connecting arm and the baffle are made of elastic beryllium copper alloy, which has the heat-conducting effect, so that even if the sleeve pipe is not disassembled, the normal use of the heat pump pipeline is not affected. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the front view of the present application;
[0020] Figure 2 It is the schematic view of the first half pipe of the present application;
[0021] Figure 3 It is the schematic view of the spring of the present application;
[0022] Figure 4 It is the schematic view of the second half pipe of the present application;
[0023] Figure 5 It is the schematic view of the inside of the side groove of the present application.
[0024] 1, the first half pipe; 2, the second half pipe; 3, the heat pump pipeline; 4, the intermediate groove; 5, the worm shaft; 6, the notch; 7, the worm wheel; 8, the connecting arm; 9, the baffle; 10, the embedded groove; 11, the spring; 12, the heat-conducting cotton; 13, the screw rod; 14, the threaded groove; 15, the side groove; 16, the rotating shaft; 17, the knob; 18, the first bevel gear; 19, the second bevel gear; 20, the hook. DETAILED DESCRIPTION
[0025] In order to deepen the understanding of the present application, the present application will be further described below in conjunction with the embodiments, which are only used to explain the present application and do not constitute the limitation to the protection scope of the present application. EMBODIMENT
[0026] According to Figure 1 , 2 , 3, 4, the present embodiment proposes a ground source heat pump pipeline foundation pit sand backfill protection structure, which comprises a first half pipe 1 and a second half pipe 2, the first half pipe 1 and the second half pipe 2 form a sleeve, and the sleeve is sleeved on the outside of the heat pump pipeline 3, the intermediate position inside the first half pipe 1 and the second half pipe 2 is provided with an intermediate groove 4, and the inside of the intermediate groove 4 is rotatably provided with a worm shaft 5, the intermediate position of the outside of the first half pipe 1 and the second half pipe 2 is provided with a notch 6, and the notches 6 on the first half pipe 1 and the second half pipe 2 are equally spaced with multiple groups;
[0027] The inside of the notch 6 is rotatably provided with a worm wheel 7, the notch 6 is communicated with the intermediate groove 4, the worm wheel 7 is matched with the worm shaft 5, and the worm wheel 7 is connected with a connecting arm 8, the connecting arm 8 is provided with a baffle 9, and the baffle 9 is arc-shaped. When in use, the first half pipe 1 and the second half pipe 2 are combined into a sleeve which is sleeved on the outside of the heat pump pipeline 3, when the earthwork is poured, the worm shaft 5 is rotated to drive the worm wheel 7 to rotate, so that the connecting arm 8 is rotated to drive the baffle 9 to rotate and tilt at a certain angle, which is beneficial to guide the unloading of the earthwork and avoid the impact force directly acting on the heat pump pipeline 3.
[0028] The outer side of the first half pipe 1 and the second half pipe 2 is provided with an embedded groove 10, and a plurality of groups of embedded grooves 10 are provided at equal intervals on the first half pipe 1 and the second half pipe 2, and the baffle 9 is matched with the embedded groove 10. When disassembling the sleeve pipe, the worm shaft 5 can be rotated to drive the worm wheel 7 to rotate, so that the connecting arm 8 is rotated to drive the baffle 9 to rotate and be collected in the embedded groove 10, thereby avoiding being stuck in the earthwork and facilitating disassembly.
[0029] The both ends of the inner side of the baffle 9 are provided with springs 11, and the springs 11 are connected to the inside of the embedded groove 10. When in use, the worm shaft 5 is rotated to drive the worm wheel 7 to rotate, so that the connecting arm 8 is rotated to drive the baffle 9 to rotate and tilt at a certain angle, which is beneficial to guide the earthwork to unload force, and the embedded groove 10 and the baffle 9 are connected through the action of the spring, so as to avoid the accidental falling of the baffle 9.
[0030] The inner side of the first half pipe 1 and the second half pipe 2 is provided with heat-conducting cotton 12, and the heat-conducting cotton 12 is filled between the sleeve pipe and the heat pump pipeline 3. When in use, the heat-conducting cotton 12 can play a certain soft damping effect, protecting the heat pump pipeline 3, and at the same time, if the sleeve pipe is not disassembled, the heat-conducting cotton 12 can conduct heat and does not affect the normal use of the heat pump pipeline.
[0031] The first half pipe 1 and the second half pipe 2 are made of heat-conducting copper, and the connecting arm 8 and the baffle 9 are made of elastic beryllium copper alloy. The first half pipe 1 and the second half pipe 2 are made of heat-conducting copper, and the connecting arm 8 and the baffle 9 are made of elastic beryllium copper alloy, which has a heat-conducting effect, so that even if the sleeve pipe is not disassembled, it does not affect the normal use of the heat pump pipeline. And the elastic beryllium copper alloy has elasticity, and the connecting arm 8 and the baffle 9 have the function of force resetting, and are not easy to be damaged. Embodiment
[0032] According to Figure 1 , 2 , 4, 5, the embodiment provides a ground source heat pump pipeline foundation pit sand backfill protection structure, which comprises a first half pipe 1 and a second half pipe 2, the first half pipe 1 and the second half pipe 2 form a sleeve pipe, and the sleeve pipe is sleeved outside the heat pump pipeline 3, the middle position inside the first half pipe 1 and the second half pipe 2 is provided with a middle groove 4, and the inside of the middle groove 4 is rotatably provided with a worm shaft 5, the middle position of the outer side of the first half pipe 1 and the second half pipe 2 is provided with a notch 6, and a plurality of groups of notches 6 are provided at equal intervals on the first half pipe 1 and the second half pipe 2.
[0033] The inner side of the gap 6 is provided with a worm wheel 7, the gap 6 is communicated with the middle groove 4, the worm wheel 7 is matched with the worm shaft 5, and the connecting arm 8 is connected on the worm wheel 7, the baffle 9 is arranged on the connecting arm 8, and the baffle 9 is arc-shaped. When in use, the first half pipe 1 and the second half pipe 2 are combined into a sleeve pipe and are sleeved on the outer side of the heat pump pipeline 3, when the earthwork is poured, the worm shaft 5 is rotated to drive the worm wheel 7 to rotate, so that the connecting arm 8 is rotated to drive the baffle 9 to rotate and tilt at a certain angle, which is beneficial to guide the unloading of the earthwork and avoid the impact force directly acting on the heat pump pipeline 3.
[0034] The four corners of the inner side of the first half pipe 1 are rotatably provided with screw rods 13, the four corners of the inner side of the second half pipe 2 are provided with threaded grooves 14, and the screw rods 13 are matched with the threaded grooves 14. Both ends of the first half pipe 1 are provided with side grooves 15, and a rotating shaft 16 is rotatably arranged in the side grooves 15, the upper end of the rotating shaft 16 extends out of the side grooves 15, and a knob 17 is arranged on the upper end of the rotating shaft 16. The inner sides of the screw rods 13 at both ends respectively extend into the side grooves 15 at both ends, and the inner sides of the screw rods 13 are provided with first bevel gears 18, the upper and lower ends of the outer side of the rotating shaft 16 are provided with second bevel gears 19, and the second bevel gears 19 are matched with the first bevel gears 18. Both ends of the top of the second half pipe 2 are provided with lifting hooks 20, and the lifting hooks 20 are integrally formed with the second half pipe 2. When in use, before the earthwork is rammed, the knob 17 is rotated to drive the rotating shaft 16 to rotate, so that the second bevel gears 19 are rotated to drive the first bevel gears 18 to rotate, so that the screw rods 13 are rotated, and the screw rods 13 are pushed out of the threaded grooves 14 by the threaded action, so that the first half pipe 1 and the second half pipe 2 are loosened. At this time, the sleeve pipe can be pulled out upward by the lifting hook 20 through the lifting tool, and then the screw rod 13 is rotated to make the screw rod 13 separate from the threaded groove 14, so that the first half pipe 1 and the second half pipe 2 are separated, and the sleeve pipe can be disassembled.
[0035] The application is combined with the first half pipe 1 and the second half pipe 2 to sleeve the heat pump pipeline 3, when the earthwork is poured, the worm shaft 5 is rotated to drive the worm wheel 7 to rotate, so that the connecting arm 8 is rotated to drive the baffle 9 to rotate and tilt a certain angle, which is beneficial to guide the unloading of the earthwork and avoid the impact force directly acting on the heat pump pipeline 3. Before the earthwork is rammed, the knob 17 is rotated to drive the rotating shaft 16 to rotate, so that the second bevel gear 19 is rotated to drive the first bevel gear 18 to rotate, so that the screw rod 13 is rotated, the screw rod 13 is pushed out from the threaded groove 14 by the threaded action, so that the first half pipe 1 and the second half pipe 2 are loosened, at this time, the lifting tool is pulled to pull the lifting hook 20, the sleeve can be pulled out upward, the screw rod 13 is rotated to separate the first half pipe 1 and the second half pipe 2, and the sleeve can be disassembled, which is more convenient. Meanwhile, the first half pipe 1 and the second half pipe 2 are made of heat-conducting copper, the connecting arm 8 and the baffle 9 are made of elastic beryllium copper alloy, and have heat-conducting effect, so that the normal use of the heat pump pipeline is not affected even if the sleeve is not disassembled. The elastic beryllium copper alloy has elasticity, and the connecting arm 8 and the baffle 9 have the function of force resetting, and are not easy to be damaged.
[0036] The basic principle, main features and advantages of the application are shown and described above. It should be understood by those skilled in the art that the application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the application, and various changes and improvements can be made without departing from the spirit and scope of the application, and these changes and improvements all fall within the scope of the application. The scope of protection of the application is defined by the appended claims and their equivalents.
Claims
1. A protection structure for backfilling of sand soil in a foundation pit of a ground source heat pump pipeline, comprising a first half-pipe (1) and a second half-pipe (2), characterized in that: The first half pipe (1) and the second half pipe (2) constitute a sleeve, and the sleeve is sleeved outside the heat pump pipeline (3), the middle position inside the first half pipe (1) and the second half pipe (2) is provided with an intermediate groove (4), and the inside of the intermediate groove (4) is rotatably provided with a worm shaft (5), the middle position outside the first half pipe (1) and the second half pipe (2) is provided with a notch (6), and the notches (6) on the first half pipe (1) and the second half pipe (2) are equally provided with a plurality of groups. The inside of the notch (6) is rotatably provided with a worm wheel (7), the notch (6) is communicated with the intermediate groove (4), the worm wheel (7) is matched with the worm shaft (5), and the worm wheel (7) is connected with a connecting arm (8), the connecting arm (8) is provided with a baffle (9), and the baffle (9) is arc-shaped.
2. The geothermal heat pump pipe pit sand backfill protection structure according to claim 1, characterized in that: The outside of the first half pipe (1) and the second half pipe (2) is provided with an embedded groove (10), and the embedded grooves (10) on the first half pipe (1) and the second half pipe (2) are equally provided with a plurality of groups, and the baffle (9) is matched with the embedded groove (10).
3. The geothermal heat pump pipe pit sand backfill protection structure according to claim 2, characterized in that: Both ends of the inside of the baffle (9) are provided with springs (11), and the springs (11) are connected to the inside of the embedded groove (10).
4. The geothermal heat pump pipe pit sand backfill protection structure according to claim 3, characterized in that: The inside of the first half pipe (1) and the second half pipe (2) is provided with a heat-conducting cotton (12), and the heat-conducting cotton (12) is filled between the sleeve and the heat pump pipeline (3).
5. The geothermal heat pump pipe pit sand backfill protection structure according to claim 1, characterized in that: The inside of the first half pipe (1) is rotatably provided with a screw rod (13) at four corners, the inside of the second half pipe (2) is provided with a threaded groove (14) at four corners, and the screw rod (13) is matched with the threaded groove (14).
6. The geothermal heat pump pipe pit sand backfill protection structure according to claim 5, characterized in that: Both ends of the inside of the first half pipe (1) are provided with a side groove (15), and a rotating shaft (16) is rotatably arranged in the inside of the side groove (15), and the upper end of the rotating shaft (16) extends out of the side groove (15), and the upper end of the rotating shaft (16) is provided with a knob (17).
7. The geothermal heat pump pipe pit sand backfill protection structure according to claim 6, characterized in that: The inside of the screw rod (13) of both ends respectively extends to the inside of the side groove (15) of both ends, and the inside of the screw rod (13) is provided with a first bevel gear (18), the upper and lower ends of the outside of the rotating shaft (16) are provided with a second bevel gear (19), and the second bevel gear (19) is matched with the first bevel gear (18).
8. The geothermal heat pump pipe pit sand backfill protection structure according to claim 7, characterized in that: Both ends of the top of the second half pipe (2) are provided with hooks (20), and the hooks (20) are integrally formed with the second half pipe (2).
9. The geothermal heat pump pipe foundation trench sand backfill protection structure according to any one of claims 1-8, characterized in that: The first half pipe (1) and the second half pipe (2) are made of heat-conducting copper, and the connecting arm (8) and the baffle (9) are made of elastic beryllium copper alloy.
Citation Information
Patent Citations
Automatic geological disaster monitoring device
CN114236098A
Heat distribution pipeline protection structure
CN217482128U