Sleeve type anti-freezing and anti-thaw settlement isolation device suitable for pile foundation in frozen soil area

Abstract

The invention discloses a sleeve type anti-freezing and anti-thaw collapse isolation device suitable for a pile foundation in a frozen soil area, and relates to the technical field of pile foundations. The sleeve type anti-freezing and anti-thaw settlement isolation device suitable for the frozen soil area pile foundation comprises a cylinder mechanism, the cylinder mechanism comprises an outer sleeve and an inner sleeve, the inner sleeve is installed in the middle of the interior of the outer sleeve, a closed space is formed between the outer sleeve and the inner sleeve, and a sealing assembly is installed on the side of the top of the outer sleeve; flow guide grooves are formed in the inner wall of the outer sleeve and the outer circle face of the inner sleeve correspondingly, confluence groove bodies are formed in the positions, located at the tops of the flow guide grooves, of the inner wall of the outer sleeve and the outer circle face of the inner sleeve, the flow guide grooves are vertically formed and evenly formed in the positions of the inner wall of the outer sleeve and the outer circle face of the inner sleeve, and a base mechanism is installed at the bottom of the outer sleeve; a heat conduction mechanism is installed at the top of the outer circle face of the outer sleeve, the anti-freezing and anti-thaw collapse purposes are achieved, heat transfer is utilized, constant temperature is achieved, freezing and thaw collapse are avoided, and safety and reliability are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pile foundation, in particular to a sleeve type anti-freezing and anti-frost heaving and anti-melting sinking isolation device suitable for pile foundation in frozen soil area. BACKGROUND

[0002] Pile foundation is a form of deep foundation, which transmits the load of upper structure to deep and hard soil or rock layer by driving, pressing or pouring pile into the soil layer, and has the advantages of high bearing capacity, good stability and strong anti-seismic performance, and is widely used in engineering fields such as building, bridge and port. The design and construction of pile foundation in frozen soil area should fully consider the special properties of frozen soil, such as frost heaving and thawing sinking, to avoid the decrease of bearing capacity or structural damage caused by soil freezing and thawing cycle. The design of pile foundation in frozen soil area should follow the principles of reducing thermal disturbance, enhancing anti-frost heaving and controlling thawing deformation, and select reasonable pile type and technical measures combined with engineering geological conditions, frozen soil type and environmental requirements, and ensure the safety and stability of pile foundation through long-term monitoring. The temperature and process should be strictly controlled during construction to reduce the impact on frozen soil ecology.

[0003] At present, in order to solve the problems of frost heaving and thawing sinking, the traditional pile foundation mostly adopts the measures of deepening and enlarging the foundation, which can alleviate the problems of frost heaving and thawing sinking to a certain extent, but greatly increases the cost and construction difficulty, cannot effectively solve the problems caused by temperature, and still exists safety hidden trouble. SUMMARY

[0004] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0005] A sleeve type anti-freezing and anti-frost heaving and anti-melting sinking isolation device suitable for pile foundation in frozen soil area, comprising:

[0006] A cylindrical mechanism for supporting and isolating the pile foundation;

[0007] The cylinder mechanism comprises an outer sleeve and an inner sleeve, the inner sleeve is installed at the middle of the inner part of the outer sleeve, a closed space is formed between the outer sleeve and the inner sleeve, a sealing assembly is installed at the edge side of the top of the outer sleeve, the inner wall of the outer sleeve and the outer circular surface of the inner sleeve are both provided with a flow guide groove, the top of the flow guide groove is provided with a flow collection groove body, the whole bottom of the outer sleeve and the inner sleeve is buried below the frozen soil area, the temperature of the underground is higher than that of the ground, and the closed space formed by the outer sleeve and the inner sleeve is filled with ammonia water, the boiling point of the ammonia water is very low, so that the ammonia water absorbs the heat of the underground and is gasified, the gasified ammonia water moves upward in the cavity formed by the outer sleeve and the inner sleeve, so that the gasified ammonia water takes away a large amount of heat and is not easy to freeze out, the frozen soil is cooled, more cold energy is stored, and the frozen soil is not easy to melt in summer, so that the absorption of heat by the frozen soil is avoided, and the settlement is avoided.

[0008] The flow guide groove is vertically provided, and the flow guide groove is uniformly provided on the inner wall of the outer sleeve and the outer circular surface of the inner sleeve.

[0009] The bottom of the outer sleeve is provided with a base mechanism, and the top of the outer circular surface of the outer sleeve is provided with a heat conduction mechanism.

[0010] When the temperature of the external air is low, the gasified ammonia water is condensed by cold, and the condensed ammonia water flows downward along the inner wall of the outer sleeve and the outer circular surface of the inner sleeve, and the flow collection groove body at the top of the flow guide groove increases the contact area with the condensed ammonia water, so that the ammonia water is gathered in the flow guide groove and flows downward quickly, the speed of the downward flow of the ammonia water is increased, and the ammonia water is gathered at the bottom of the inner cavity of the outer sleeve, which is helpful for subsequent heat exchange.

[0011] Preferably, the sealing assembly comprises a liquid inlet assembly and a plugging assembly, the liquid inlet assembly is installed at the edge side of the top of the outer sleeve, the plugging assembly is installed at the middle of the inner part of the liquid inlet assembly, and a fastening bolt is installed between the liquid inlet assembly and the plugging assembly.

[0012] Preferably, the liquid inlet assembly comprises a liquid inlet hopper, the middle of the surface of the liquid inlet hopper is fixedly installed at the edge side of the top of the outer sleeve, the plugging assembly is installed at the middle of the inner part of the liquid inlet hopper, the bottom end of the liquid inlet hopper penetrates the top of the outer sleeve and extends into the inner part thereof, a rectangular clamping block is fixedly connected to the middle of the inner side of the liquid inlet hopper, an annular sealing extension edge is fixedly connected to the inner side of the liquid inlet hopper, and the annular sealing extension edge is installed directly below the rectangular clamping block.

[0013] Preferably, the liquid inlet hopper is conical, and the diameter of the liquid inlet hopper decreases from top to bottom, the rectangular clamping blocks are four, and the four rectangular clamping blocks are evenly distributed at the middle of the inner side of the liquid inlet hopper, and the inner side of the annular sealing extension edge is an arc curved surface.

[0014] Preferably, the sealing assembly includes a disc-shaped top cover, the disc-shaped top cover is fixedly installed on the top of the liquid inlet hopper by a fastening bolt, the bottom of the disc-shaped top cover is fixedly connected with a conical cylinder, the outer side of the conical cylinder is provided with a rectangular hole, the bottom of the conical cylinder is provided with a U-shaped notch, the opening of the U-shaped notch faces downward, the rectangular clamping block is embedded in the inner part of the U-shaped notch, the inner side of the conical cylinder and the bottom position are fixedly connected with a conical sealing part, the conical sealing part is hollow, the bottom of the conical sealing part is fixedly connected with a diaphragm, the sealing assembly is embedded in the inner part of the liquid inlet hopper, the rectangular clamping block is embedded in the inner part of the U-shaped notch, the conical cylinder is positioned, and is not easy to deviate and tilt, the rectangular hole is evenly distributed on the surface of the conical cylinder, and the conical sealing part is hollow, so that the weight of the conical cylinder is reduced, and the sealing assembly is more light and easy to carry.

[0015] Preferably, the rectangular hole is six, and the six rectangular holes are evenly distributed on the conical surface of the outer side of the conical cylinder, the U-shaped notch is four, and the four U-shaped notches are evenly distributed on the bottom of the conical cylinder, the central axis of the conical sealing part coincides with the central axis of the conical cylinder, the disc-shaped top cover and the top of the liquid inlet hopper are fixed together by a fastening bolt, the surface of the conical sealing part is fully attached to the inner side of the annular sealing extension edge, the annular sealing extension edge is extruded by the conical sealing part, the annular sealing extension edge fills the gap between the surface of the conical sealing part and the inner wall of the liquid inlet hopper, and the diaphragm is installed at the bottom of the conical sealing part, so that the sealing effect is realized, and the ammonia water is always stored in the inner space composed of the outer sleeve and the inner sleeve.

[0016] Preferably, the base mechanism includes an annular base, the top of the annular base is fixedly connected with the bottom of the outer sleeve, the annular base is provided with a circular through hole in the central annular direction, the bottom of the annular base is fixedly connected with a connecting plug plate, the top end of the connecting plug plate penetrates through the bottom of the outer sleeve and extends into the inner part thereof, the triangular sub-plate is fixedly connected at the middle of the surface of the connecting plug plate, the strip-shaped hole is formed at the edge side of the bottom of the surface of the connecting plug plate, and the elliptical hole is formed at the top of the surface of the connecting plug plate, the connecting plug plate is evenly distributed at the bottom of the annular base, the connecting plug plate is inserted into the land under the ground, the contact area of the bottom of the annular base and the land is increased, the annular base, the connecting plug plate and the underground are firmly connected, the support of the annular base to the outer sleeve and the inner sleeve is more stable, and the annular base is not easy to tilt.

[0017] Preferably, the center of the annular base coincides with the central axis at the middle of the outer sleeve, the connecting plugboards are uniformly installed at the bottom of the annular base, the top end of the connecting plugboard extends inside the outer sleeve, so that the top end of the connecting plugboard is in full contact with the ammonia water, and the contact area can be increased by using the oval hole, so that the heat transfer efficiency is high, which helps the gasification of the ammonia water.

[0018] Preferably, the heat conduction mechanism comprises a first heat conduction ring, an annular circular ring and a second heat conduction ring, the inner side surface of the first heat conduction ring is fixedly connected with the top of the outer cylindrical surface of the outer sleeve, the edge of the inner side surface of the annular circular ring is fixedly connected with the edge of the outer side surface of the first heat conduction ring, the edge of the inner side surface of the second heat conduction ring is fixedly connected with the edge of the outer side surface of the annular circular ring, the surface of the annular circular ring is provided with a gas permeable hole in the middle, and a flow guide hopper is fixedly connected with the bottom of the annular circular ring and is installed directly below the gas permeable hole, as the ammonia water gasifies and rises, heat exchange is carried out through the first heat conduction ring, the annular circular ring and the second heat conduction ring which are uniformly distributed on the top of the outer cylindrical surface of the outer sleeve, a large amount of heat can be quickly dissipated, condensation into ammonia water is promoted, heat exchange is facilitated, and external gas enters the inside of the flow guide hopper from the gas permeable hole, and the diameter of the flow guide hopper gradually decreases from top to bottom, so that the gas flow speed is increased, and heat is further taken away by the airflow.

[0019] Preferably, the first heat conduction ring, the annular circular ring and the second heat conduction ring are concentric circles, the gas permeable holes are uniformly distributed in the middle of the surface of the annular circular ring, and the diameter of the flow guide hopper gradually decreases from top to bottom.

[0020] The application provides a sleeve type anti-freezing and anti-pulling and anti-melting and anti-settling isolation device suitable for a pile foundation in a frozen soil area.

[0021] I. The sleeve type anti-freezing and anti-pulling and anti-melting and anti-settling isolation device suitable for a pile foundation in a frozen soil area, the whole bottom composed of the outer sleeve and the inner sleeve is buried below the frozen soil area, the temperature of the underground is higher than that of the ground surface, ammonia water is filled in the closed space composed of the outer sleeve and the inner sleeve, and the boiling point of the ammonia water is very low, so that the ammonia water absorbs the heat of the underground to gasify, the gasified ammonia water moves upwards in the cavity composed of the outer sleeve and the inner sleeve, the gasified ammonia water takes away a large amount of heat, freezing and pulling are not easy to occur, the frozen soil is cooled, more cold energy is stored, the frozen soil is not easy to melt in summer, and the situation of settlement caused by the absorption of heat by the frozen soil to melt is avoided.

[0022] II. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, when the outside air temperature is low, the condensed ammonia water can be condensed into ammonia water along the inner wall of the outer sleeve and the outer surface of the inner sleeve, and uniformly distributed in the collecting groove at the top of the flow guide groove, increasing the contact area of the condensed ammonia water, and the ammonia water is gathered in the inside of the flow guide groove, which can promote the ammonia water to flow down quickly, increase the speed of the ammonia water flowing down, and promote the ammonia water to gather at the bottom of the inner cavity of the outer sleeve, which is helpful for subsequent heat exchange.

[0023] III. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, the sealing assembly is embedded in the inside of the liquid inlet hopper, the rectangular clamping block is embedded in the inside of the U-shaped notch, and the conical cylinder is positioned, so that the deviation and skew are not easy to occur.

[0024] IV. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, the rectangular holes are uniformly distributed on the surface of the conical cylinder, and the conical blocking piece is hollow, which can reduce the weight of the conical cylinder itself, and make the sealing assembly more lightweight.

[0025] V. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, the disc-shaped top cover and the top of the liquid inlet hopper are fixed together by the fastening bolt, the surface of the conical blocking piece is fully matched with the inside surface of the annular sealing extension edge, and the annular sealing extension edge is extruded by the conical blocking piece, so that the annular sealing extension edge fills the gap between the surface of the conical blocking piece and the inner wall of the liquid inlet hopper, and the diaphragm is installed at the bottom of the conical blocking piece, which can be sealed to realize the sealing effect, so that the ammonia water is always stored in the internal space composed of the outer sleeve and the inner sleeve.

[0026] VI. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, the connecting plugs are uniformly distributed at the bottom of the annular base, so that the connecting plugs are inserted into the ground, increasing the contact area between the bottom of the annular base and the ground, making the annular base, the connecting plugs and the underground connection firm, and the annular base supporting the outer sleeve and the inner sleeve more stable, not easy to skew.

[0027] VII. The sleeve type anti-frost-pulling and anti-frost-heaving isolation device suitable for pile foundation in frozen soil area, the top end of the connecting plug extends into the inside of the outer sleeve, so that the top end of the connecting plug is in full contact with the ammonia water, and the elliptical hole can increase the contact area, so that the heat transfer efficiency is high, which is helpful for the gasification of ammonia water.

[0028] Eight, the sleeve type anti-freezing and anti-pulling and anti-melting sinking isolation device suitable for pile foundation in frozen soil area, with the ammonia water gasification rising, heat exchange is carried out through the top first heat conducting ring, annular circular ring, second heat conducting ring uniformly distributed on the outer circle surface of the outer sleeve, a large amount of heat can be quickly dissipated, and condensation into ammonia water is promoted, heat exchange is facilitated, and external gas enters the inside of the flow guide hopper from the air hole, and the flow guide hopper is combined, the diameter gradually decreases from top to bottom, so that the gas flow velocity increases, and the heat carried by the airflow is further promoted. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the overall structural schematic view of the sleeve type anti-freezing and anti-pulling and anti-melting sinking isolation device suitable for pile foundation in frozen soil area;

[0030] Figure 2 It is the overall structural schematic view of the sleeve type anti-freezing and anti-pulling and anti-melting sinking isolation device suitable for pile foundation in frozen soil area;

[0031] Figure 3 It is the overall structural schematic view of the cylinder mechanism;

[0032] Figure 4 It is the overall structural schematic view of the sealing assembly;

[0033] Figure 5 It is the overall structural schematic view of the sealing assembly;

[0034] Figure 6 It is the overall structural schematic view of the sealing assembly;

[0035] Figure 7 It is the connecting structure between the base mechanism and the outer sleeve;

[0036] Figure 8 It is the connecting structure between the heat conducting mechanism and the outer sleeve;

[0037] Figure 9 It is the overall structural schematic view of the heat conducting mechanism.

[0038] In the figure: 1, cylindrical mechanism; 2, base mechanism; 3, heat conduction mechanism; 101, outer sleeve; 102, inner sleeve; 103, sealing assembly; 104, flow guide groove; 105, flow collection groove body; 1031, liquid inlet assembly; 1032, plugging assembly; 1033, fastening bolt; 10311, liquid inlet hopper; 10312, rectangular clamping block; 10313, annular sealing extension edge; 10321, disc-shaped top cover; 10322, conical cylinder; 10323, rectangular hole; 10324, U-shaped notch; 10325, conical plugging piece; 10326, diaphragm; 21, annular base; 22, circular through hole; 23, connecting plug plate; 24, triangular sub-plate; 25, strip-shaped hole; 26, oval hole; 31, first heat conduction ring; 32, annular circular ring; 33, second heat conduction ring; 34, air vent; 35, flow guide hopper. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] The first embodiment, as shown in the figure, the present application provides a technical solution: Figures 1 to 6

[0041] A sleeve type anti-freezing and anti-pulling and anti-melting isolation device suitable for pile foundation in permafrost regions, comprising:

[0042] The cylindrical mechanism 1 is used for supporting and isolating the pile foundation.

[0043] The cylindrical mechanism 1 comprises an outer sleeve 101 and an inner sleeve 102, the inner sleeve 102 is installed at the middle of the inner part of the outer sleeve 101, a closed space is formed between the outer sleeve 101 and the inner sleeve 102, a sealing assembly 103 is installed at the edge side of the top of the outer sleeve 101, flow guide grooves 104 are formed in the inner wall of the outer sleeve 101 and the outer circular surface of the inner sleeve 102, and flow collection groove bodies 105 are formed at the top position of the flow guide grooves 104, the whole bottom formed by the outer sleeve 101 and the inner sleeve 102 is buried below the permafrost region, the temperature of the underground is higher than that of the ground surface, and ammonia water is contained in the closed space formed by the outer sleeve 101 and the inner sleeve 102, combined with the very low boiling point of ammonia water, the ammonia water absorbs the heat of the underground to be gasified, the gasified ammonia water moves upward in the cavity formed by the outer sleeve 101 and the inner sleeve 102, so that the gasified ammonia water carries away a large amount of heat, freezing and pulling are not easy to occur, the permafrost is cooled, more cold energy is reserved, and the permafrost is not easy to melt in summer;​

[0044] The flow guide groove 104 is vertically arranged and evenly arranged on the inner wall of the outer sleeve 101 and the outer surface of the inner sleeve 102, and the flow guide groove 104 is communicated with the flow guide groove 104;

[0045] The bottom of the outer sleeve 101 is provided with a base mechanism 2, and the top of the outer surface of the outer sleeve 101 is provided with a heat conduction mechanism 3.

[0046] When the outside air temperature is low, the condensed ammonia water can be condensed into ammonia water, and flows down along the inner wall of the outer sleeve 101 and the outer surface of the inner sleeve 102, and is evenly distributed in the flow guide groove 104 at the top of the flow guide groove 104, which increases the contact area with the condensed ammonia water, and the ammonia water is gathered in the flow guide groove 104 for flow guiding. With the ammonia water gathered in the flow guide groove 104, the ammonia water can flow down quickly, the speed of the ammonia water flowing down is increased, and the ammonia water is gathered at the bottom of the inner cavity of the outer sleeve 101, which is helpful for subsequent heat exchange.

[0047] The sealing assembly 103 comprises a liquid inlet assembly 1031 and a sealing assembly 1032, the liquid inlet assembly 1031 is arranged at the side of the top of the outer sleeve 101, the sealing assembly 1032 is arranged at the middle of the liquid inlet assembly 1031, and the liquid inlet assembly 1031 and the sealing assembly 1032 are arranged with fastening bolts 1033.

[0048] The liquid inlet assembly 1031 comprises a liquid inlet hopper 10311, the middle of the surface of the liquid inlet hopper 10311 is fixedly installed at the side of the top of the outer sleeve 101, the sealing assembly 1032 is arranged at the middle of the liquid inlet hopper 10311, the bottom end of the liquid inlet hopper 10311 penetrates the top of the outer sleeve 101 and extends into the inside, the middle of the inner side of the liquid inlet hopper 10311 is fixedly connected with a rectangular clamping block 10312, the inner side of the liquid inlet hopper 10311 is fixedly connected with an annular sealing extension edge 10313, and the annular sealing extension edge 10313 is arranged below the rectangular clamping block 10312.

[0049] The liquid inlet hopper 10311 is conical, and the diameter of the liquid inlet hopper 10311 gradually decreases from top to bottom, the rectangular clamping block 10312 is four, and the four rectangular clamping blocks 10312 are evenly distributed at the middle of the inner side of the liquid inlet hopper 10311, and the inner side of the annular sealing extension edge 10313 is arc curved surface.

[0050] The blocking assembly 1032 comprises a disc-shaped top cover 10321 fixedly installed on the top of the liquid inlet hopper 10311 through a fastening bolt 1033, the bottom of the disc-shaped top cover 10321 is fixedly connected with a conical barrel 10322, a rectangular hole 10323 is arranged on the conical surface of the outer side of the conical barrel 10322, a U-shaped notch 10324 is arranged on the bottom of the conical barrel 10322, the opening of the U-shaped notch 10324 is downward, a rectangular clamping block 10312 is embedded in the inside of the U-shaped notch 10324, a conical blocking piece 10325 is fixedly connected to the inner side of the conical barrel 10322 and close to the bottom position, the conical blocking piece 10325 is hollow, and a diaphragm 10326 is fixedly connected to the bottom of the conical blocking piece 10325, the blocking assembly 103 is embedded in the inside of the liquid inlet hopper 10311 as a whole, the conical barrel 10322 is positioned by embedding the rectangular clamping block 10312 in the inside of the U-shaped notch 10324, and the conical barrel 10322 is not easy to deviate and skew, and the rectangular holes 10323 are uniformly distributed on the surface of the conical barrel 10322, and the conical blocking piece 10325 is hollow, so that the weight of the conical barrel 10322 itself can be reduced, and the blocking assembly 103 as a whole is more light and easy.

[0051] The rectangular holes 10323 are six, and the six rectangular holes 10323 are uniformly distributed on the conical surface of the outer side of the conical barrel 10322, the U-shaped notches 10324 are four, and the four U-shaped notches 10324 are uniformly distributed on the bottom of the conical barrel 10322, and the central axis of the conical blocking piece 10325 at the middle position coincides with the central axis of the conical barrel 10322 at the middle position.

[0052] The disc-shaped top cover 10321 and the top of the liquid inlet hopper 10311 are fixed together through the fastening bolt 1033, so that the surface of the conical blocking piece 10325 is fully attached to the inner side of the annular sealing extension edge 10313, the annular sealing extension edge 10313 is extruded by the conical blocking piece 10325, so that the annular sealing extension edge 10313 can fill the gap between the surface of the conical blocking piece 10325 and the inner wall of the liquid inlet hopper 10311, and the diaphragm 10326 is installed at the bottom of the conical blocking piece 10325, so that the blocking can be performed, and the ammonia water is always stored in the internal space composed of the outer sleeve 101 and the inner sleeve 102.

[0053] The second embodiment is based on the first embodiment, please refer to Figures 1 to 7 as shown:

[0054] The base mechanism 2 comprises a ring-shaped base 21, the top of which is fixedly connected with the bottom of the outer sleeve 101, a circular through hole 22 is formed in the center of the ring-shaped base 21 in the ring direction, a connecting plug plate 23 is fixedly connected to the bottom of the ring-shaped base 21, the top end of the connecting plug plate 23 penetrates through the bottom of the outer sleeve 101 and extends into the inner part thereof, a triangular sub-plate 24 is fixedly connected to the middle of the surface of the connecting plug plate 23, a strip-shaped hole 25 is formed in the side of the bottom of the surface of the connecting plug plate 23, and an oval hole 26 is formed in the top of the surface of the connecting plug plate 23. The connecting plug plate 23 is evenly distributed on the bottom of the ring-shaped base 21, so that the connecting plug plate 23 can be inserted into the ground, the contact area between the bottom of the ring-shaped base 21 and the ground is increased, the ring-shaped base 21, the connecting plug plate 23 and the ground are firmly connected, and the support of the ring-shaped base 21 on the outer sleeve 101 and the inner sleeve 102 is more stable.

[0055] The center of the ring-shaped base 21 coincides with the central axis of the middle of the outer sleeve 101, and the connecting plug plate 23 is evenly installed on the bottom of the ring-shaped base 21.

[0056] The top end of the connecting plug plate 23 extends into the inner part of the outer sleeve 101, so that the top end of the connecting plug plate 23 is in full contact with the ammonia water, and the oval hole 26 can increase the contact area, the heat transfer efficiency is high, and the vaporization of the ammonia water is promoted.

[0057] In the third embodiment, on the basis of the first and second embodiments, please refer to Figures 1 to 9 as shown:

[0058] The heat conduction mechanism 3 comprises a first heat conduction ring 31, a ring-shaped circular ring 32 and a second heat conduction ring 33. The inner side surface of the first heat conduction ring 31 is fixedly connected with the top of the outer circular surface of the outer sleeve 101, the edge of the inner side surface of the ring-shaped circular ring 32 is fixedly connected with the edge of the outer side surface of the first heat conduction ring 31, and the edge of the inner side surface of the second heat conduction ring 33 is fixedly connected with the edge of the outer side surface of the ring-shaped circular ring 32. A gas permeable hole 34 is formed in the middle of the surface of the ring-shaped circular ring 32, and a flow guide hopper 35 is fixedly connected to the bottom of the ring-shaped circular ring 32 and is installed directly below the gas permeable hole 34.

[0059] As the ammonia water vaporizes and rises, heat exchange is performed through the first heat conduction ring 31, the ring-shaped circular ring 32 and the second heat conduction ring 33 which are evenly distributed on the top of the outer circular surface of the outer sleeve 101, a large amount of heat can be quickly dissipated, condensation into ammonia water is promoted, heat exchange is facilitated, external gas enters the inner part of the flow guide hopper 35 from the gas permeable hole 34, the diameter of the flow guide hopper 35 gradually decreases from top to bottom, the gas flow speed increases, and the gas flow carries away heat.

[0060] The first heat-conducting ring 31, the annular circular ring 32 and the second heat-conducting ring 33 are concentric circles, the air holes 34 are uniformly distributed in the middle of the surface of the annular circular ring 32, and the flow guide hopper 35 gradually decreases in diameter from top to bottom.

[0061] In use, first, the fastening bolt 1033 is unscrewed, and the plugging assembly 1032 is taken out as a whole, at this time, the inside space composed of the outer sleeve 101 and the inner sleeve 102 is injected with an appropriate amount of ammonia water from the liquid inlet hopper 10311, at this time, the plugging assembly 1032 is immediately installed into the inside of the liquid inlet hopper 10311 as a whole;

[0062] The rectangular clamping block 10312 is embedded into the inside of the U-shaped notch 10324 to position the conical cylinder 10322, and the rectangular hole 10323 is uniformly distributed on the surface of the conical cylinder 10322, and the conical plugging part 10325 is hollow, so as to reduce the weight of the conical cylinder 10322 itself, and make the plugging assembly 103 as a whole more light and easy to carry;

[0063] The surface of the conical plugging part 10325 is fully attached to the inner side of the annular sealing extension edge 10313, and the annular sealing extension edge 10313 is extruded by the conical plugging part 10325, so as to make the annular sealing extension edge 10313 fill the gap between the surface of the conical plugging part 10325 and the inner wall of the liquid inlet hopper 10311, and the diaphragm 10326 is installed at the bottom of the conical plugging part 10325, so as to plug, and make the ammonia water always stored in the inside space composed of the outer sleeve 101 and the inner sleeve 102;

[0064] At the same time, the whole composed of the outer sleeve 101 and the inner sleeve 102 and the base mechanism 2 are buried below the frozen soil area, and the connecting plugs 23 are uniformly distributed at the bottom of the annular base 21, so as to make the connecting plugs 23 inserted into the land underground, increase the contact area between the bottom of the annular base 21 and the land, make the annular base 21, the connecting plugs 23 and the underground firmly connected, and the support of the annular base 21 to the outer sleeve 101 and the inner sleeve 102 more stable.

[0065] And the temperature of the underground is higher than that of the ground surface, the top end of the connecting plug 23 extends into the inside of the outer sleeve 101, so as to make the top end of the connecting plug 23 fully contact with the ammonia water, and the oval hole 26 can increase the contact area, the heat transfer efficiency is high, and the vaporization of the ammonia water is promoted;

[0066] And the closed space formed by the outer sleeve 101 and the inner sleeve 102 is filled with ammonia water, and the low boiling point of the ammonia water makes the ammonia water absorb the heat of the ground to be gasified, and the gasified ammonia water moves upward in the cavity formed by the outer sleeve 101 and the inner sleeve 102, so that the gasified ammonia water takes away a large amount of heat and is not easy to freeze out, cools the frozen soil, and reserves more cold, so that the frozen soil is not easy to melt in summer;

[0067] And as the ammonia water is gasified and rises, it exchanges heat with the first heat-conducting ring 31, the annular circular ring 32 and the second heat-conducting ring 33 evenly distributed on the top of the outer circular surface of the outer sleeve 101, so that a large amount of heat is quickly dissipated, promoting condensation into ammonia water, facilitating heat exchange, and external gas enters the inside of the flow guide hopper 35 from the air hole 34, and the diameter of the flow guide hopper 35 gradually decreases from top to bottom, so that the gas flow speed increases, promoting gas flow to take away heat.

[0068] When the external air temperature is low, the gasified ammonia water condenses when it is cold, and can be condensed into ammonia water and flow down along the inner wall of the outer sleeve 101 and the outer circular surface of the inner sleeve 102, and the flow collection groove body 105 evenly distributed at the top of the flow guide groove 104 increases the contact area with the condensed ammonia water, and the ammonia water is gathered in the inside of the flow guide groove 104 for flow guiding, and as the ammonia water is gathered in the inside of the flow guide groove 104, it can promote the ammonia water to flow down quickly, increase the speed of the ammonia water flowing downward, so as to promote the ammonia water to gather at the bottom of the inner cavity of the outer sleeve 101, which is helpful for subsequent heat exchange again.

[0069] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0070] Although embodiments of the present application 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 application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area, characterized in that, The utility model relates to a cylinder mechanism (1) for supporting and isolating pile foundation, wherein the cylinder mechanism (1) comprises an outer sleeve (101) and an inner sleeve (102), the inner sleeve (102) is installed at the middle of the inner part of the outer sleeve (101), a closed space is formed between the outer sleeve (101) and the inner sleeve (102), a sealing assembly (103) is installed at the side of the top of the outer sleeve (101), the inner wall of the outer sleeve (101) and the outer surface of the inner sleeve (102) are provided with flow guide grooves (104), and the top of the flow guide grooves (104) is provided with a flow collecting groove body (105). The flow guide grooves (104) are vertically arranged and evenly arranged on the inner wall of the outer sleeve (101) and the outer surface of the inner sleeve (102), and the flow collecting groove body (105) is communicated with the flow guide grooves (104). The bottom of the outer sleeve (101) is provided with a base mechanism (2), and the top of the outer surface of the outer sleeve (101) is provided with a heat conduction mechanism (3). The sealing assembly (103) comprises a liquid inlet assembly (1031) and a sealing assembly (1032), the liquid inlet assembly (1031) is installed at the side of the top of the outer sleeve (101), the sealing assembly (1032) is installed at the middle of the inner part of the liquid inlet assembly (1031), and a fastening bolt (1033) is arranged between the liquid inlet assembly (1031) and the sealing assembly (1032). The liquid inlet assembly (1031) comprises a liquid inlet hopper (10311), the surface of the liquid inlet hopper (10311) is fixedly installed at the side of the top of the outer sleeve (101), the sealing assembly (1032) is installed at the middle of the inner part of the liquid inlet hopper (10311), the bottom end of the liquid inlet hopper (10311) penetrates the top of the outer sleeve (101) and extends into the inner part thereof, a rectangular clamping block (10312) is fixedly connected to the middle of the inner side of the liquid inlet hopper (10311), an annular sealing extension side (10313) is fixedly connected to the inner side of the liquid inlet hopper (10311), and the annular sealing extension side (10313) is installed directly below the rectangular clamping block (10312).

2. A sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 1, characterized in that: The liquid inlet hopper (10311) is conical, the caliber of the liquid inlet hopper (10311) gradually decreases from top to bottom, the rectangular clamping block (10312) is four, and the four rectangular clamping blocks (10312) are evenly distributed at the middle of the inner side of the liquid inlet hopper (10311), and the inner side of the annular sealing extension side (10313) is an arc surface.

3. A sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 2, characterized in that: ​ 4. The sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 3, characterized in that: ​ 5. The sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 3, characterized in that: The plugging assembly (1032) comprises a disc-shaped top cover (10321) fixedly installed at the top of the liquid inlet hopper (10311) through a fastening bolt (1033), the bottom of the disc-shaped top cover (10321) is fixedly connected with a conical barrel (10322), a rectangular hole (10323) is formed in the conical surface of the outer side of the conical barrel (10322), the bottom of the conical barrel (10322) is provided with a U-shaped notch (10324), the opening of the U-shaped notch (10324) faces downward, the rectangular clamping block (10312) is embedded into the U-shaped notch (10324), the inner side of the conical barrel (10322) and close to the bottom position is fixedly connected with a conical plugging piece (10325), the conical plugging piece (10325) is hollow, and the bottom of the conical plugging piece (10325) is fixedly connected with a diaphragm (10326).

6. A sleeve type anti-frost heaving and thaw weakening isolation device suitable for pile foundation in frozen soil area according to claim 5, characterized in that: The six rectangular holes (10323) are uniformly distributed on the conical surface of the outer side of the conical barrel (10322), and the four U-shaped notches (10324) are uniformly distributed on the bottom of the conical barrel (10322), and the central axis of the conical plugging piece (10325) coincides with the central axis of the conical barrel (10322).

7. A sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 1, characterized in that: The base mechanism (2) comprises an annular base (21), the top of the annular base (21) is fixedly connected with the bottom of the outer sleeve (101), a circular through hole (22) is formed in the annular base (21) in a central annular direction, the bottom of the annular base (21) is fixedly connected with a connecting plug plate (23), the top end of the connecting plug plate (23) penetrates through the bottom of the outer sleeve (101) and extends into the inner portion thereof, a triangular sub-plate (24) is fixedly connected to the middle portion of the surface of the connecting plug plate (23), a strip-shaped hole (25) is formed in the edge of the bottom of the surface of the connecting plug plate (23), and an oval hole (26) is formed in the top of the surface of the connecting plug plate (23).

8. A sleeve type frost heave and thaw settlement prevention isolation device suitable for use in pile foundations in frost areas according to claim 7, characterized in that: The center of the annular base (21) coincides with the central axis of the middle portion of the outer sleeve (101), and the connecting plug plates (23) are uniformly installed at the bottom of the annular base (21).

9. The sleeve type anti-frost heaving and thawing sinking isolation device suitable for pile foundation in frozen soil area according to claim 1, characterized in that: The heat conduction mechanism (3) comprises a first heat conduction ring (31), an annular circular ring (32) and a second heat conduction ring (33), the inner side of the first heat conduction ring (31) is fixedly connected with the top of the outer circular surface of the outer sleeve (101), the edge of the inner side of the annular circular ring (32) is fixedly connected with the edge of the outer side of the first heat conduction ring (31), the edge of the inner side of the second heat conduction ring (33) is fixedly connected with the edge of the outer side of the annular circular ring (32), a ventilation hole (34) is formed in the middle portion of the surface of the annular circular ring (32), and a flow guide hopper (35) is fixedly connected to the bottom of the annular circular ring (32), and the flow guide hopper (35) is installed directly below the ventilation hole (34).

10. A sleeve type anti-frost heaving and thaw weakening isolation device suitable for pile foundation in frozen soil area according to claim 9, characterized in that: The first heat-conducting ring (31), the annular circular ring (32) and the second heat-conducting ring (33) are concentric circles, the air holes (34) are uniformly distributed in the middle of the surface of the annular circular ring (32), and the flow guide hopper (35) is gradually reduced in diameter from top to bottom.

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