Energy-saving type ground source heat pump air conditioning device capable of compensating shallow terrestrial heat in summer

Abstract

The invention provides an energy-saving type ground source heat pump air conditioning device capable of compensating shallow terrestrial heat in summer, and relates to the technical field of heat pump equipment, the energy-saving type ground source heat pump air conditioning device comprises a buried pipe frame, an upper auxiliary fixing frame, a heat pump module and a buffer water tank module, an upper connecting rotating frame is rotatably arranged on the lower portion of the buried pipe frame, rotatable outer supporting rods are arranged on the outer side of the upper connecting rotating frame in an annular array mode, the outer supporting rods are rotatably connected with a middle connecting pipe through a rotating shaft in a matched mode, the lower portion of the buried pipe frame is in threaded connection with a lower threaded rod, and a buried heat exchange pipe penetrates through the inner side of the middle connecting pipe. The middle connecting pipe and the buried heat exchange pipe are attached to the outer side of the buried pipe frame, the diameter of the whole device is reduced, frictional wear between the buried heat exchange pipe and the outside in the installation process is reduced, and the problem that in the installation process of a buried pipeline, friction occurs between the buried pipeline and underground soil, rock and other media is solved; and the problem that leakage is easy to occur in the long-term use process due to abrasion of the buried pipeline is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of ground source heat pump equipment, and in particular to an energy-saving ground source heat pump air conditioning device capable of compensating shallow geothermal energy in summer. Background Art

[0002] A ground source heat pump air conditioning device is an air conditioning device that uses heat exchange of shallow geothermal energy underground for heating and cooling. In some cold regions, long-term and large-scale heat extraction by traditional geothermal air conditioners in winter will lead to insufficient heat storage in the soil, and the soil temperature will decrease year by year, affecting the heating efficiency in winter.

[0003] The existing ground source heat pump air conditioning device penetrates into the ground through a U-shaped buried pipeline for heat and cold exchange. During the installation process of the buried pipeline, it will rub against media such as soil and rock underground, and the buried pipeline will be worn due to friction. The wear of the buried pipeline is more likely to cause leakage during long-term use, increasing the maintenance burden of the buried pipeline in the later stage. Moreover, the U-shaped buried pipelines are arranged side by side, resulting in the U-shaped buried pipelines being close to each other and easily exchanging heat with each other, reducing the heat exchange efficiency. Summary of the Invention

[0004] The present invention provides an energy-saving ground source heat pump air conditioning device capable of compensating shallow geothermal energy in summer. Among them, the connecting pipe and the buried heat exchange pipe are closely attached to the outside of the buried pipe rack. The compact structural design effectively reduces the diameter of the overall device, reduces the probability of friction and wear between the buried heat exchange pipe and external media such as soil and rock during the installation process, and reduces the occurrence of leakage of the buried heat exchange pipe due to wear. The outer support rod supports the middle connecting pipe and the buried heat exchange pipe to move outward. During the process of outward expansion of the buried heat exchange pipe, the distance between the buried heat exchange pipes is effectively expanded, expanding the influence range of the heat exchange of the buried heat exchange pipes, and expanding the heat exchange range.

[0005] The present invention provides an energy-saving ground source heat pump air conditioning device capable of compensating shallow geothermal energy in summer, which specifically includes a buried pipe rack, an upper auxiliary fixing rack, a heat pump module, and a buffer water tank module. The upper part of the buried pipe rack is rotationally connected to the center circumference of the upper auxiliary fixing rack. A heat pump module and a buffer water tank module are arranged above the buried pipe rack. A upper connecting rotating frame is rotatably arranged at the lower part of the buried pipe rack. Rotatable outer support rods are annularly arranged on the outside of the upper connecting rotating frame. The outer support rod and the middle connecting pipe are rotationally connected through a rotating shaft. The lower part of the buried pipe rack is threadedly connected to a lower threaded rod. A lower connecting fixing frame is fixedly connected to the lower part of the lower threaded rod. A lower conical base is fixedly connected to the lower end of the lower threaded rod. A buried heat exchange pipe penetrates through the inside of the middle connecting pipe.

[0006] Further, the lower rotating shaft of the middle connecting pipe is rotationally connected with another outer support rod in a matching manner. The tail end of the outer support rod at the lower part of the middle connecting pipe and the lower connecting fixing frame are rotationally connected through a rotating shaft in a matching manner. When the buried pipe rack and the lower threaded rod move closer, the middle connecting pipe moves away from the buried pipe rack. After the buried heat exchange pipes expand outwards, the distance between the buried heat exchange pipes is further increased.

[0007] Further, the buried heat exchange pipe is of a U structure. The two ends of the buried heat exchange pipe respectively penetrate through the middle connecting pipes on both sides of the buried pipe rack. The lower conical base is of a conical structure with a wider upper part and a narrower lower part. The buried heat exchange pipe and the middle connecting pipe are both above the lower conical base, and the lower conical base enters the ground first.

[0008] Further, through holes are annularly arranged in the middle of the upper auxiliary fixing frame. Inner guiding rotating frames are rotatably arranged inside the through holes. Side moving sliding frames are slidably connected above and below the inner guiding rotating frames. Inner pulleys are rotatably connected inside the side moving sliding frames. Outer threaded rods are rotatably arranged above and below the inner guiding rotating frames.

[0009] Further, inner pulleys are rotatably arranged at the upper and lower parts of the upper auxiliary fixing frame. The inner pulleys of the upper auxiliary fixing frame and the inner pulleys of the side moving sliding frames are arranged oppositely. The buried heat exchange pipe is located between the inner pulleys of the upper auxiliary fixing frame and the side moving sliding frames. The outer threaded rods are threadedly connected with the side moving sliding frames. The side moving sliding frames move along with the outer threaded rods, and the distance between the side moving sliding frames and the inner pulleys of the upper auxiliary fixing frame is adjusted to adjust the distance between the side moving sliding frames and the inner pulleys of the upper auxiliary fixing frame.

[0010] Further, two lower heat exchangers are communicated with the heat pump module. A distribution box is fixedly installed above the lower heat exchanger. The lower heat exchanger is provided with a water outlet port and a water return port. The water outlet port and the water return port are communicated with a water outlet pipe and a water return pipe through a control valve body. The water return pipe is communicated with a circulating pump.

[0011] Further, the buffer water tank module is communicated with the solar panel through a pipeline. Control valve bodies are respectively communicated with a water outlet pipe and a water return pipe above and below the buffer water tank module. The buffer water tank module uses the hot water continuously generated by the solar panel to communicate the water outlet pipe, the water return pipe and the buried heat exchange pipes.

[0012] Further, the distribution box is electrically connected with the heat pump module, the control valve body and the circulating pump for control. The head and tail ends of the buried heat exchange pipes are respectively communicated with the water outlet pipe and the water return pipe. The circulating pump drives the water liquid in the buried pipe rack to flow through the underground, through the water outlet pipe and the water return pipe, and finally return to the lower heat exchanger.

[0013] The present invention provides an energy-saving ground source heat pump air conditioner device capable of compensating for shallow geothermal energy in summer, and has the following beneficial effects: In the installation of the buried pipe rack deep into the ground, the connecting pipe and the buried heat exchange pipe are closely attached to the outside of the buried pipe rack. The compact structural design effectively reduces the diameter of the overall device, reduces the probability of friction and wear between the buried heat exchange pipe and external media such as soil and rock during the installation process, reduces the occurrence of leakage of the buried heat exchange pipe due to wear, and significantly improves the safety and reliability of the buried heat exchange pipe.

[0014] After the buried pipe rack moves to the specified depth, the outer support rod supports the connecting pipe and the buried heat exchange pipe to move outward. During the process of the buried heat exchange pipe expanding outward, the distance between the buried heat exchange pipes is effectively increased. Compared with the initial compact state, the influence range of heat exchange of the buried heat exchange pipes is expanded. The expansion of the heat exchange range means an increase in the heat exchange area between the buried pipes and the surrounding soil, and the heat exchange efficiency is improved.

[0015] When the buried heat exchange pipe expands outward, the buried heat exchange pipe moves and bends outward along the inner pulley, and the inner pulley rotates synchronously with the movement of the buried heat exchange pipe, reducing the frictional resistance during the movement of the buried heat exchange pipe. The inner pulley controls the bending amplitude of the buried heat exchange pipe to avoid the situation of poor water flow caused by excessive bending of the buried heat exchange pipe, ensuring the normal circulation of the fluid inside the buried heat exchange pipe. According to the buried heat exchange pipes with different pipe diameters, the side moving carriage moves along with the outer threaded rod, thereby flexibly adjusting the distance between the inner pulleys, and adjusting to make the inner pulley spacing compatible with buried heat exchange pipes of different pipe diameters, eliminating the need for replacement of parts.

[0016] In spring and autumn seasons, the buffer water tank module uses the hot water generated by the solar panel to connect the outlet pipe, the return pipe and the buried heat exchange pipe, realizing heat compensation for the underground, compensating the heat storage of the soil, and avoiding the situation that the soil temperature decreases year by year, affecting the heating efficiency in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present invention, the drawings of the present invention will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 A schematic diagram showing the state of the buried heat exchange pipe of the present application between the inner pulleys is shown; Figure 3 A schematic diagram showing the structure of the buried pipe rack of the present application is shown; Figure 4 A schematic diagram showing the structure of the upper auxiliary fixing frame of the present application is shown; Figure 5Shows a schematic structural diagram of the cross-section of the upper auxiliary fixing frame of the present application; Figure 6 Shows a schematic structural diagram of the cross-section of the inner guiding rotating frame and the side moving sliding frame of the present application; Figure 7 Shows a schematic structural diagram of the heat pump module of the present application; Figure 8 Shows a schematic structural diagram of the separated state of the middle connecting pipe, the buried heat exchange pipe and the upper auxiliary fixing frame of the present application.

[0020] Reference numerals: 1. Buried pipe rack; 101. Upper connecting rotating frame; 102. Outer support rod; 103. Middle connecting pipe; 104. Lower connecting fixing frame; 105. Lower threaded rod; 106. Lower conical base; 107. Buried heat exchange pipe; 2. Upper auxiliary fixing frame; 201. Inner guiding rotating frame; 202. Side moving sliding frame; 203. Inner pulley; 204. Outer threaded rod; 205. Through hole; 3. Heat pump module; 301. Lower heat exchanger; 302. Distribution box; 303. Water outlet port; 304. Water return port; 305. Control valve body; 306. Water outlet pipe; 307. Water return pipe; 308. Circulation pump; 4. Buffer water tank module; 401. Solar panel. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] The first aspect of the present invention: Please refer to Figures 1 to 8 : The present invention provides an energy-saving ground source heat pump air conditioning device that can compensate for shallow geothermal energy in summer, including a buried pipe rack 1, an upper auxiliary fixing rack 2, a heat pump module 3, and a buffer water tank module 4. A upper connecting rotating rack 101 is rotatably arranged at the lower part of the buried pipe rack 1. Rotatable outer support rods 102 are annularly arrayed on the outer side of the upper connecting rotating rack 101. The outer support rods 102 and a middle connecting pipe 103 are rotatably connected by a rotating shaft. The lower part of the buried pipe rack 1 is threadedly connected with a lower threaded rod 105. A lower connecting fixing rack 104 is fixedly connected to the lower part of the lower threaded rod 105. A lower conical base 106 is fixedly connected to the lower end of the lower threaded rod 105. A buried heat exchange pipe 107 penetrates through the inner side of the middle connecting pipe 103. The upper part of the buried pipe rack 1 is rotationally connected to the center circumference of the upper auxiliary fixing rack 2. Through holes 205 are annularly arrayed in the middle of the upper auxiliary fixing rack 2. Inner guiding rotating racks 201 are rotatably arranged inside the through holes 205. Side moving sliding racks 202 are slidably connected above and below the inner guiding rotating racks 201. Inner pulleys 203 are rotatably connected to the inner sides of the side moving sliding racks 202. Outer threaded rods 204 are rotatably arranged above and below the inner guiding rotating racks 201. The inner pulleys 203 control the bending amplitude of the buried heat exchange pipe 107 to avoid the situation of excessive bending of the buried heat exchange pipe 107. Above the buried pipe rack 1, there are arranged a heat pump module 3 and a buffer water tank module 4. Two lower heat exchangers 301 are communicated with the heat pump module 3. A distribution box 302 is fixedly installed above the lower heat exchangers 301. Water outlet ports 303 and water return ports 304 are arranged on the lower heat exchangers 301. The water outlet ports 303 and water return ports 304 are communicated with a water outlet pipe 306 and a water return pipe 307 through a control valve body 305. The water return pipe 307 is communicated with a circulating pump 308. The buffer water tank module 4 is connected to a solar panel 401 through a pipeline. The upper and lower communication ports of the buffer water tank module 4 are respectively communicated with the water outlet pipe 306 and the water return pipe 307 through the control valve body 305. The distribution box 302 is electrically connected to and controls the heat pump module 3, the control valve body 305, and the circulating pump 308. The head and tail ends of the buried heat exchange pipe 107 are respectively communicated with the water outlet pipe 306 and the water return pipe 307. The circulating pump 308 drives the water liquid in the buried pipe rack 1 to flow through the ground through the water outlet pipe 306 and the water return pipe 307 and finally return to the lower heat exchanger 301. The compressor of the heat pump module 3 drives the medium to realize heat exchange with the water liquid in the lower heat exchanger 301. The buffer water tank module 4 continuously generates hot water through the solar panel 401 to communicate with the water outlet pipe 306, the water return pipe 307, and the buried heat exchange pipe 107. The buried heat exchange pipe 107 compensates the heat of the ground, compensates for the soil heat storage, and avoids the situation that the soil heat storage causes the soil temperature to decrease year by year and reduces the winter heating efficiency.

[0023] In the embodiment of the present disclosure, another outer support rod 102 is rotationally connected to the lower rotating shaft of the middle connecting pipe 103 in a matching manner. The tail end of the outer support rod 102 at the lower part of the middle connecting pipe 103 and the lower connecting and fixing frame 104 are rotationally connected through a rotating shaft in a matching manner. When the buried pipe rack 1 and the lower threaded rod 105 move closer, the middle connecting pipe 103 moves away from the buried pipe rack 1. After the buried heat exchange pipes 107 expand outwards, the distance between the buried heat exchange pipes 107 is further increased. Compared with the initial compact state, the distance between the buried heat exchange pipes 107 after expansion can be increased by 2 times, further expanding the influence range of the heat exchange of the buried heat exchange pipes 107.

[0024] In the embodiment of the present disclosure, the buried heat exchange pipe 107 is of a U structure. The two ends of the buried heat exchange pipe 107 respectively penetrate through the middle connecting pipes 103 on both sides of the buried pipe rack 1. The lower conical base 106 is of a conical structure with a wider upper part and a narrower lower part. The buried heat exchange pipe 107 and the middle connecting pipe 103 are both above the lower conical base 106. The lower conical base 106 enters the ground first, and the lower conical base 106 can block and make collision contact with various stones in the ground and the hole wall.

[0025] In the embodiment of the present disclosure, inner pulleys 203 are rotatably arranged at both the upper and lower parts of the upper auxiliary fixing frame 2. The inner pulleys 203 of the upper auxiliary fixing frame 2 and the inner pulleys 203 of the side moving slide 202 are arranged oppositely. The buried heat exchange pipe 107 is located between the inner pulleys 203 of the upper auxiliary fixing frame 2 and the side moving slide 202. The outer threaded rod 204 is threadedly connected to the side moving slide 202. The side moving slide 202 moves along with the outer threaded rod 204, and the distance between the inner pulley 203 of the side moving slide 202 and the inner pulley 203 of the upper auxiliary fixing frame 2 is adjusted. By adjusting the distance between the inner pulley 203 of the side moving slide 202 and the inner pulley 203 of the upper auxiliary fixing frame 2, buried heat exchange pipes 107 with different pipe diameters are compatible, improving the versatility and applicability of the device.

[0026] Second, in the second aspect of the present invention, on the basis of the first aspect of the present invention, the buried heat exchange pipe 107, the buffer water tank module 4, the water outlet port 303, and the water return port 304 are connected and switched pairwise through a three-way valve. The two three-way valves switch the circulation states of the buried heat exchange pipe 107 and the buffer water tank module 4 or the water outlet port 303, the water return port 304, and the buried heat exchange pipe 107. Four control valves 305 are replaced by two three-way valves, reducing the operation difficulty.

[0027] Working principle of the present invention: First, drill holes in the area where geothermal pre-burial is required, and then the buried pipe rack 1 is inserted deep into the ground for installation. The lower conical base 106 enters the ground first. The lower conical base 106 can block and collide with various stones in the ground and on the hole wall, preventing the buried heat exchange pipe 107 from directly contacting various stones on the hole wall. At the same time, ensure the minimum passing diameter of the hole drilled by the lower conical base 106 to ensure the smooth insertion of the buried heat exchange pipe 107 deep into the ground. The middle connecting pipe 103 and the buried heat exchange pipe 107 are closely attached to the outside of the buried pipe rack 1. The position of the buried heat exchange pipe 107 is smaller than the diameter of the lower conical base 106. The compact structure design effectively reduces the diameter of the overall device, reducing the probability of friction and wear between the buried heat exchange pipe 107 and external media such as soil and rock during installation, and reducing the likelihood of leakage of the buried heat exchange pipe 107 due to wear during later use, improving the safety and reliability of the buried heat exchange pipe 107. The probability of leakage of the buried heat exchange pipe 107 due to wear can be reduced by 15%, extending the service life of the equipment and reducing the later maintenance cost; After the buried pipe rack 1 moves to the designated depth, the buried pipe rack 1 moves axially along the thread of the lower threaded rod 105. The buried pipe rack 1 moves closer to the lower threaded rod 105, and the distance between the upper connecting rotating frame 101 and the lower connecting fixing frame 104 approaches synchronously. The outer support rod 102 connected by the upper connecting rotating frame 101 and the lower connecting fixing frame 104 inclines towards the horizontal direction. The outer support rod 102 supports the middle connecting pipe 103 and the buried heat exchange pipe 107 to move outward. The middle connecting pipe 103 and the buried heat exchange pipe 107 move away from the buried pipe rack 1 for expansion. After the buried heat exchange pipe 107 expands outward, the distance between the buried heat exchange pipes 107 is further increased. Compared with the initial compact state, the spacing between the buried heat exchange pipes 107 after expansion can be increased by 2 times, further expanding the influence range of the heat exchange of the buried heat exchange pipes 107. The expansion of the heat exchange range means an increase in the heat exchange area between the buried pipes and the surrounding soil, improving the heat exchange efficiency and greatly enhancing the overall performance of the ground source heat pump system, providing more efficient heating and cooling services for buildings; When the connecting pipe 103 in the middle supports the buried heat exchange pipe 107 to expand outward, the middle part of the buried heat exchange pipe 107 bends outward and extends into the ground, further increasing the length of the underground heat exchange part of the buried heat exchange pipe 107. At the same time, the upper auxiliary fixing frame 2 rotates obliquely. The buried heat exchange pipe 107 moves and bends outward along the inner pulley 203, and the inner pulley 203 rotates synchronously with the movement of the buried heat exchange pipe 107, reducing the frictional resistance during the movement of the buried heat exchange pipe 107. The inner pulley 203 controls the bending amplitude of the buried heat exchange pipe 107 to avoid the situation of poor water flow caused by excessive bending of the buried heat exchange pipe 107, ensuring the normal circulation of the fluid in the buried heat exchange pipe 107 and maintaining the efficient operation of the ground source heat pump system. According to the buried heat exchange pipes 107 with different pipe diameters, the threaded guiding side of the external threaded rod 204 moves the side moving carriage 202 axially. The side moving carriage 202 moves along with the external threaded rod 204, and the distance between the side moving carriage 202 and the inner pulley 203 of the upper auxiliary fixing frame 2 is adjusted, so as to flexibly adjust the distance between the side moving carriage 202 and the inner pulley 203 of the upper auxiliary fixing frame 2, realizing the compatibility of the inner pulley 203 spacing with buried heat exchange pipes 107 of different pipe diameters, eliminating the replacement of parts, greatly improving the versatility and applicability of the device, and reducing the equipment procurement and maintenance costs; After the buried pipe rack 1 is installed in place, the buried heat exchange pipe 107 is connected to the water outlet pipe 306 and the water return pipe 307. The circulating pump 308 drives the water liquid in the buried pipe rack 1 to return to the lower heat exchanger 301 through the ground. The compressor of the heat pump module 3 drives the medium to realize heat exchange with the water liquid in the lower heat exchanger 301. The lower heat exchanger 301 is a tubular heat exchanger. The medium flows through the compressor of the heat pump module 3 to another lower heat exchanger 301, and the medium exchanges with the water liquid at one end of the room in the other lower heat exchanger 301. The other lower heat exchanger 301 is connected to the pipes of the indoor radiator and the indoor fan, and the other lower heat exchanger 301 realizes heating or cooling of the indoor terminal, realizing heating or cooling work of the room; In seasons when cooling does not need to be started in spring and autumn, the water outlet port 303, the water return port 304, and the control valve body 305 are closed, and the control valve body 305 of the buffer water tank module 4 is opened to realize the connection of the buffer water tank module 4 with the water outlet pipe 306 and the water return pipe 307. The connection between the water outlet port 303, the water return port 304 and the water outlet pipe 306, the water return pipe 307 is disconnected. The buffer water tank module 4 connects the water outlet pipe 306, the water return pipe 307 and the buried heat exchange pipe 107 through the hot water continuously generated by the solar panel 401. The buried heat exchange pipe 107 compensates the underground heat, compensates the soil heat storage, avoids the situation that the soil temperature decreases year by year and affects the heating efficiency in winter, ensures that the ground source heat pump system can operate stably and efficiently in winter, provides users with a continuous and comfortable heating experience, and the buffer water tank module 4 realizes isolation from the water outlet port 303 and the water return port 304 through the control valve body 305, avoiding the situation that the buffer water tank module 4 with high temperature in summer reduces the heat exchange efficiency of the heat pump module 3.

[0028] In this article, the following points need to be noted: 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0029] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0030] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer, comprising: A buried pipe rack (1), an upper auxiliary fixing frame (2), a heat pump module (3) and a buffer water tank module (4); characterized in that the upper part of the buried pipe rack (1) is rotatably connected to the center circle of the upper auxiliary fixing frame (2), the heat pump module (3) and the buffer water tank module (4) are arranged above the buried pipe rack (1), the lower part of the buried pipe rack (1) is rotatably arranged with an upper connecting rotating frame (101), the outer annular array of the upper connecting rotating frame (101) is provided with rotatable outer support rods (102), the outer support rods (102) and the middle connecting pipe (103) are rotatably connected through a rotating shaft, the lower part of the buried pipe rack (1) is threadedly connected to a lower threaded rod (105), the lower part of the lower threaded rod (105) is fixedly connected to a lower connecting fixing frame (104), the lower end of the lower threaded rod (105) is fixedly connected to a lower conical base (106), and the inner side of the middle connecting pipe (103) is penetrated by a buried heat exchange pipe (107).

2. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 1, characterized in that: The lower rotating shaft of the middle connecting pipe (103) is rotatably connected to another outer supporting rod (102); the tail end of the outer supporting rod (102) at the lower part of the middle connecting pipe (103) and the lower connecting fixing frame (104) are rotatably connected via the rotating shaft; when the underground pipe rack (1) and the lower threaded rod (105) move closer, the middle connecting pipe (103) moves in a direction away from the underground pipe rack (1).

3. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 2, characterized in that: The buried heat exchange tube (107) is of a U-structure, with both ends of the buried heat exchange tube (107) respectively passing through the middle connecting tubes (103) on both sides of the buried tube rack (1), and the lower conical base (106) being of a conical structure that is wide at the top and narrow at the bottom, and the buried heat exchange tube (107) and the middle connecting tube (103) are both located above the lower conical base (106).

4. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 1, characterized in that: The middle annular array of the upper auxiliary fixing frame (2) is provided with through holes (205), the inner side of the through holes (205) is rotatably provided with an inner guide rotating frame (201), the upper and lower parts of the inner guide rotating frame (201) are slidably connected with a side movable slide (202), the inner side of the side movable slide (202) is rotatably connected with an inner pulley (203), and the upper and lower parts of the inner guide rotating frame (201) are rotatably provided with an external threaded rod (204).

5. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 4, characterized in that: The upper and lower parts of the upper auxiliary fixing frame (2) are both rotatably provided with inner pulleys (203); the inner pulleys (203) of the upper auxiliary fixing frame (2) and the inner pulleys (203) of the side movable slide frame (202) are arranged opposite to each other; the buried heat exchange pipe (107) is located between the inner pulleys (203) of the upper auxiliary fixing frame (2) and the side movable slide frame (202); and the external threaded rod (204) is threadedly connected to the side movable slide frame (202).

6. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 1, characterized in that: The heat pump module (3) is connected to two lower heat exchangers (301); a distribution box (302) is fixedly installed above the lower heat exchanger (301); a water outlet port (303) and a water return port (304) are provided on the lower heat exchanger (301); the water outlet port (303) and the water return port (304) are connected to a water outlet pipe (306) and a water return pipe (307) via a control valve body (305); and the water return pipe (307) is connected to a circulation pump (308).

7. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 6, characterized in that: The buffer water tank module (4) is connected to the solar panel (401) through a pipeline, and the upper and lower control valve bodies (305) of the buffer water tank module (4) are respectively connected to the water outlet pipe (306) and the water return pipe (307).

8. The energy-saving ground source heat pump air conditioning device capable of compensating shallow ground heat in summer according to claim 6, characterized in that: The distribution box (302) is electrically connected to the heat pump module (3), the control valve body (305) and the circulating pump (308); the head and tail ends of the buried heat exchange pipe (107) are respectively connected to the water outlet pipe (306) and the water return pipe (307).

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