A freezing pipe for ground freezing

Abstract

The application discloses a freezing pipe for stratum freezing, which comprises a mounting mechanism, an outer pipe, a return pipe fixedly connected to the outer side of the outer pipe, and an inner pipe fixedly connected to the inner side of the outer pipe, the outer side of the inner pipe is fixedly connected with a guide pipe, the inner side of the guide pipe is slidably connected with a guide rod, and the top end of the outer pipe is provided with a trigger part; the stirring blade is continuously subjected to forward and reverse rotation, so that the stirring blade can fully mix the internal nitrogen and continuously and effectively operate, thereby greatly improving the practicability of the equipment, ensuring that the nitrogen fully contacts the inner wall of the outer pipe, improving the freezing effect on the stratum, and the display rod can continuously and reciprocatingly slide, so that the working personnel can quickly understand the operation state of the equipment, the personnel's inspection efficiency can be improved, the personnel can be reminded to avoid the equipment, and the practicability of the equipment is improved again.

Description

Technical Field

[0001] This invention relates to the technical field of ground freezing, and more particularly to a freezing tube for ground freezing. Background Technology

[0002] The freezing method utilizes artificial refrigeration technology to freeze water in the strata, turning loose, water-bearing soil and rock into frozen soil, increasing its strength and stability, and isolating groundwater so that subsequent operations can be carried out under the protection of the frozen wall. The current freezing method involves supplying liquid nitrogen through an external liquid supply pipe to the inside of a freezing pipe buried in the strata, allowing the liquid nitrogen to vaporize directly inside the freezing pipe and come into contact with the inner wall of the external pipe. This utilizes the latent heat of vaporization and sensible heat of temperature rise of the liquid nitrogen to achieve refrigeration, absorbing heat from the strata and realizing the rapid freezing of the soil layer.

[0003] While this method can freeze the strata, the vaporized liquid nitrogen rises statically, preventing the gas near the inner pipe from contacting the inner wall of the outer pipe. This hinders the full utilization of the gas near the inner side and reduces the equipment's freezing efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current freezing pipes used for ground freezing, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a freezing tube for ground freezing, which can agitate the gas after liquid nitrogen vaporization, thereby improving the contact between the internal gas and the inner wall of the outer tube, thus improving the freezing effect of the equipment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a freezing pipe for ground freezing, comprising,

[0008] The installation mechanism includes an outer tube, a return tube fixedly connected to the outside of the outer tube, and an inner tube fixedly connected to the inside of the outer tube. A guide tube is fixedly connected to the outside of the inner tube, and a guide rod is slidably connected inside the guide tube. A triggering component is provided at the top end of the outer tube, and a display component is provided at the top end of the outer tube.

[0009] The outer tube is fixedly connected to a baffle, and the outer tube is fixedly connected to a connecting frame.

[0010] The driving mechanism includes a block fixedly connected to the bottom end of the guide rod, a slide rod fixedly connected to the bottom end of the block, and a convex ring fixedly connected to the outside of the slide rod. A limit rod is fixedly connected to the bottom end of the inner tube. A first spring is sleeved on the outside of the limit rod, and the bottom end of the slide rod slides on the top end of the limit rod.

[0011] The slide bar is fitted with a transmission component on its outer side, the block is equipped with an adjustment component at its top, and the outer tube is equipped with a stirring component inside.

[0012] As a preferred embodiment of the freezing tube for ground freezing according to the present invention, the triggering component includes a slide cylinder fixedly connected to the top end of the outer tube, an air cavity opened inside the slide cylinder, and a compression assembly adapted to be installed at the top end of the slide cylinder.

[0013] As a preferred embodiment of the freezing tube for ground freezing according to the present invention, the extrusion assembly includes a pressure rod slidably connected to the top of the slide cylinder, a connecting rod fixedly connected to the outside of the pressure rod, and a pressure block fixedly connected to the bottom of the pressure rod.

[0014] One end of the connecting rod is fixedly connected to the outside of the guide rod.

[0015] As a preferred embodiment of the freezing tube for ground freezing according to the present invention, the display component includes a fixing frame fixedly connected to the top end of the outer tube, a sliding groove opened on the outside of the fixing frame, and a connecting hole opened on the top end of the fixing frame.

[0016] The sliding groove is slidably connected to a connecting block, and the top of the fixing frame is provided with an observation component.

[0017] As a preferred embodiment of the freezing tube for ground freezing according to the present invention, wherein: the connecting block has a connecting cavity inside, and the connecting cavity is composed of a transition cavity, an air inlet, a lower air outlet and an upper air outlet, and the inner end of the connecting block is provided with a magnet.

[0018] As a preferred embodiment of the freezing tube for ground freezing according to the present invention, the observation component includes a sliding sleeve fixedly connected to the top of the fixing frame, a display rod slidably connected inside the sliding sleeve, and a slider fixedly connected to the bottom of the display rod.

[0019] As a preferred embodiment of the freezing pipe for ground freezing according to the present invention, the transmission component includes a rotating sleeve rotatably connected to the top of the connecting frame, a drive gear fixedly connected to the outside of the rotating sleeve, and a spiral groove formed inside the rotating sleeve.

[0020] The slide bar has a protrusion fixedly connected to its outer side, and the protrusion is located inside the spiral groove.

[0021] As a preferred embodiment of the freezing pipe for ground freezing according to the present invention, the adjusting component includes a rotating shaft rotatably connected inside the inner tube, a movable sleeve rotatably connected outside the rotating shaft, and an adjusting plate fixedly connected outside the movable sleeve. A hinge ring is fixedly connected to the outside of the movable sleeve, and a pull rod is rotatably connected to the inside of the hinge ring.

[0022] The bottom end of the pull rod is fixedly connected to the top end of the block.

[0023] As a preferred embodiment of the freezing pipe for ground freezing according to the present invention, the stirring component includes a stirring rod rotatably connected inside the baffle, a driven gear fixedly connected to the outside of the stirring rod, and a stirring blade fixedly connected to the outside of the stirring rod.

[0024] An auxiliary component is provided at the top of the stirring rod.

[0025] As a preferred embodiment of the freezing tube for formation freezing according to the present invention, the auxiliary component includes a turntable fixedly connected to the top of the stirring rod, an inner cavity opened inside the turntable, and an inner rod fixedly connected inside the inner cavity. One end of the inner rod is slidably connected to a movable block, one end of the movable block is fixedly connected to a movable rod, one end of the movable rod is fixedly connected to a push plate, the inside of the push plate is provided with an inner plate, and a second spring is sleeved on the outside of the inner rod.

[0026] The push plate and the inner plate are made of magnetic metal.

[0027] The beneficial effects of this invention are as follows: By continuously rotating the stirring blades in both forward and reverse directions, the internal nitrogen gas is fully mixed while the blades operate continuously and effectively, greatly improving the practicality of the equipment. This ensures that the nitrogen gas is in full contact with the inner wall of the outer pipe, improving its freezing effect on the formation. Furthermore, the continuous reciprocating sliding of the display rod allows staff to quickly understand the operating status of the equipment, improving not only the efficiency of staff inspections but also the awareness of personnel to avoid obstacles while the equipment is in operation, further enhancing the practicality of the equipment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0031] Figure 3 This is a partial structural diagram of the present invention.

[0032] Figure 4 This is a schematic diagram of the transmission component structure of the present invention.

[0033] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0034] Figure 6 This is a schematic diagram of the auxiliary component structure of the present invention.

[0035] Figure 7 This is a schematic diagram of the internal structure of the connecting block of the present invention. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0040] Example 1

[0041] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a freezing pipe for formation freezing. This device includes,

[0042] The installation mechanism 100 includes an outer tube 101, a return tube 102 fixedly connected to the outside of the outer tube 101, and an inner tube 103 fixedly connected to the inside of the outer tube 101. A conduit 104 is fixedly connected to the outside of the inner tube 103, and a guide rod 105 is slidably connected inside the conduit 104. A triggering component 106 is provided at the top end of the outer tube 101, and a display component 107 is provided at the top end of the outer tube 101.

[0043] Among them, a baffle 108 is fixedly connected to the inside of the outer tube 101, and a connecting bracket 109 is fixedly connected to the inside of the outer tube 101;

[0044] The drive mechanism 200 includes a block 201 fixedly connected to the bottom end of the guide rod 105, a slide rod 202 fixedly connected to the bottom end of the block 201, and a convex ring 203 fixedly connected to the outside of the slide rod 202. A limit rod 204 is fixedly connected to the bottom end of the inner tube 101. A first spring 205 is sleeved on the outside of the limit rod 204, and the bottom end of the slide rod 202 slides at the top end of the limit rod 204.

[0045] The slide bar 202 is fitted with a transmission component 206 on its outer side, the block 201 is provided with an adjustment component 207 at its top, and the outer tube 101 is provided with a stirring component 208 inside.

[0046] Specifically, the transmission component 206 includes a rotating sleeve 206a rotatably connected to the top of the connecting frame 109, a drive gear 206b fixedly connected to the outside of the rotating sleeve 206a, and a spiral groove 206c formed inside the rotating sleeve 206a.

[0047] The slide bar 202 has a protrusion fixedly connected to its outer side, and the protrusion is located inside the spiral groove 206c.

[0048] Furthermore, the stirring component 208 includes a stirring rod 208a rotatably connected inside the baffle 108, a driven gear 208b fixedly connected to the outside of the stirring rod 208a, and a stirring blade 208c fixedly connected to the outside of the stirring rod 208a.

[0049] The top of the stirring rod 208a is provided with an auxiliary component 208d.

[0050] In use, after inserting the outer tube 101 into the ground, the top of the inner tube 103 is connected to the liquid supply pipe. When the liquid supply pipe delivers liquid nitrogen into the inner tube 103, the liquid nitrogen entering the inner tube 103 will exert a pushing force on the plug 201, causing the plug 201 to slide downwards. As the plug 201 slides downwards, it will also cause the slide rod 202 and the protruding ring 203 fixed to the outside of the slide rod 202 to slide downwards, and the protruding ring 203 will compress the first spring 205, causing the first spring 205 to contract. Furthermore, since the protrusion on the outer side of the slide rod 202 is located in the spiral groove 206c inside the rotating sleeve 206a, when the slide rod 202 slides down, it will drive the rotating sleeve 206a to rotate, which will cause the drive gear 206b fixed on the outer side of the rotating sleeve 206a to rotate. When the drive gear 206b rotates, it will drive the driven gear 208b meshing with it to rotate, which will cause the driven gear 208b to drive the stirring rod 208a and the stirring blade 208c on the outer side of the stirring rod 208a to rotate.

[0051] The liquid nitrogen flowing out from the bottom of the inner tube 103 will vaporize and gradually rise inside the outer tube 101, so that the nitrogen gas freezes the formation after passing through the inner wall of the outer tube 101. After the nitrogen gas rises to the top, it will be recovered through the return pipe 102. With the rotating stirring blade 208c, the rising nitrogen gas will be fully mixed, so that the nitrogen gas can fully contact the inner wall of the outer tube 101, thereby effectively improving the freezing effect on the formation and making full and effective use of nitrogen gas.

[0052] In summary, the rotating stirring blade 208c can fully mix the rising nitrogen gas, allowing it to fully contact the inner wall of the outer tube 101, thereby effectively improving the freezing effect on the formation and making full and effective use of the nitrogen gas.

[0053] Example 2

[0054] Reference Figures 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the adjusting component 207 includes a rotating shaft 207a rotatably connected inside the inner tube 103, a movable sleeve 207b rotatably connected to the outside of the rotating shaft 207a, and an adjusting plate 207c fixedly connected to the outside of the movable sleeve 207b. A hinge ring 207d is fixedly connected to the outside of the movable sleeve 207b, and a pull rod 207e is rotatably connected to the inside of the hinge ring 207d.

[0055] The bottom end of the pull rod 207e is fixedly connected to the top end of the block 201.

[0056] Furthermore, the auxiliary component 208d includes a turntable 208d-1 fixedly connected to the top of the stirring rod 208a, an inner cavity 208d-2 opened inside the turntable 208d-1, and an inner rod 208d-3 fixedly connected inside the inner cavity 208d-2. One end of the inner rod 208d-3 is slidably connected to a movable block 208d-4, one end of the movable block 208d-4 is fixedly connected to a movable rod 208d-5, one end of the movable rod 208d-5 is fixedly connected to a push plate 208d-6, the inside of the push plate 208d-6 is provided with an inner plate 208d-7, and a second spring 208d-8 is sleeved on the outside of the inner rod 208d-3.

[0057] Among them, the push plate 208d-6 and the inner plate 208d-7 are made of magnetic metal.

[0058] During use, as the block 201 slides downward under the pushing force of liquid nitrogen, it also drives the pull rod 207e to slide downward. Thus, through the design of the pull rod 207e and the hinge ring 207d, the movable sleeve 207b will rotate on the outside of the rotating shaft 207a, thereby turning the adjusting plate 207c up. The rotating adjusting plate 207c can block the inner diameter of the inner tube 103, reducing the liquid nitrogen delivery rate and causing its pushing force on the block 201 to decrease. At this time, under the elasticity of the first spring 205, the convex ring 203 will be pushed to slide upward, causing the slide rod 202 and the block 201 fixedly connected to the top of the slide rod 202 to slide upward. The upward sliding slide rod 202 will drive the drive gear 206b on the outside of the rotating sleeve 206a to reverse, thereby driving the stirring blade 208c on the outside of the stirring rod 208a to reverse.

[0059] Furthermore, as the block 201 slides upward, the block 201 pull rod 207e pushes the hinge ring 207d, causing the movable sleeve 207b to reverse outside the rotating shaft 207a. At this time, the adjusting plate 207c rotates and falls, without blocking the diameter of the inner tube 103. The liquid nitrogen delivery rate increases, thus squeezing the block 201 again, and the cycle repeats.

[0060] In summary, by continuously sliding the block 201 up and down, the stirring blade 208c will continuously rotate in both directions, ensuring that the stirring blade 208c can fully mix the internal nitrogen while operating continuously and effectively. This greatly improves the practicality of the equipment, ensures that the nitrogen is in full contact with the inner wall of the outer pipe 101, and improves its freezing effect on the formation.

[0061] Example 3

[0062] Reference Figures 1-7The third embodiment of the present invention differs from the second embodiment in that: the triggering component 106 includes a slide cylinder 106a fixedly connected to the top end of the outer tube 101, an air cavity 106b opened inside the slide cylinder 106a, and a compression assembly 106c adapted to be installed at the top end of the slide cylinder 106a.

[0063] Furthermore, the extrusion assembly 106c includes a pressure rod 106c-1 slidably connected to the top of the slide cylinder 106a, a connecting rod 106c-2 fixedly connected to the outside of the pressure rod 106c-1, and a pressure block 106c-3 fixedly connected to the bottom of the pressure rod 106c-1.

[0064] One end of the connecting rod 106c-2 is fixedly connected to the outside of the guide rod 105.

[0065] Furthermore, the display component 107 includes a mounting bracket 107a fixedly connected to the top end of the outer tube 101, a sliding groove 107b opened on the outside of the mounting bracket 107a, and a connecting hole 107c opened on the top end of the mounting bracket 107a.

[0066] The sliding groove 107b has a connecting block 107d inside, and the top of the fixing frame 107a is provided with an observation component 107e.

[0067] Preferably, the connecting block 107d has a connecting cavity 107d-1 inside, and the connecting cavity 107d-1 is composed of a transition cavity 107d-1a, an air inlet 107d-1b, a lower air outlet 107d-1c and an upper air outlet 107d-1d, and the inner end of the connecting block 107d is set as a magnet.

[0068] It should be noted that the observation component 107e includes a sliding sleeve 107e-1 fixedly connected to the top of the mounting bracket 107a, a display rod 107e-2 slidably connected inside the sliding sleeve 107e-1, and a slider 107e-3 fixedly connected to the bottom of the display rod 107e-2.

[0069] During use, the stirring rod 208a continuously rotates in both directions, which drives the turntable 208d-1 fixed at the top of the stirring rod 208a to rotate. When the turntable 208d-1 rotates, it generates centrifugal force, which causes the movable block 208d-4 and the movable rod 208d-5 to slide outward, and also causes the second spring 208d-8 to stretch. The push plate 208d-6, which slides outward, can push the connecting block 107d to slide inside the slide groove 107b, and align the upper air outlet 107d-1d with the connecting hole 107c, while blocking the lower air outlet 107d-1c. The continuous reciprocating sliding of the blocking block 201 will drive the pressure rod 106c-1 and the pressure block 106c-3 fixed at the bottom of the pressure rod 106c-1 to reciprocate through the connecting rod 106c-2.

[0070] If the turntable 208d-1 is not rotating, the connecting block 107d will be magnetically attracted to the surface of the push plate 208d-6. When the pressure block 106c-3 slides downward, the gas inside the slide cylinder 106a will pass through the air chamber 106b and then enter the transition chamber 107d-1a through the air inlet 107d-1b. Since the upper air outlet 107d-1d is blocked, the gas can only be discharged through the lower air outlet 107d-1c. Conversely, when the pressure block 106c-3 slides upward, it will draw in air.

[0071] When the turntable 208d-1 is rotating, it will be pushed outward by the connecting block 107d of the push plate 208d-6. With the assistance of the inner plate 208d-7, multiple sets of push plates 208d-6 can stably push the connecting block 107d to avoid jamming. When the pressure block 106c-3 slides downward, the gas inside the slide cylinder 106a will pass through the air chamber 106b and then through the air inlet 107d-1b into the transition chamber 107d-1a. At this time, the lower air outlet 107d-1c is blocked, so the gas will pass through the upper air outlet 107d-1d and the connecting hole 107c and enter the slide sleeve 107e-1, pushing the slider 107e-3 and the display rod 107e-2 to slide upward. Conversely, when the pressure block 106c-3 slides upward, it will drive the display rod 107e-2 to slide downward.

[0072] During normal operation, the equipment drives the turntable 208d-1 to continuously rotate forward and backward, and the pressure block 106c-3 to continuously slide back and forth. This also drives the display rod 107e-2 to continuously slide back and forth, making it easier for staff to quickly understand the operating status of the equipment. This not only improves the efficiency of staff inspections but also helps staff to be aware that the equipment is in operation and to avoid obstacles, further enhancing the practicality of the equipment.

[0073] In summary, by continuously rotating the stirring blade 208c in both forward and reverse directions, the internal nitrogen gas is fully mixed while the blade operates continuously and effectively, greatly improving the practicality of the equipment. This ensures that the nitrogen gas is in full contact with the inner wall of the outer pipe 101, enhancing its freezing effect on the formation. Furthermore, the continuous reciprocating sliding of the display rod 107e-2 allows staff to quickly understand the equipment's operating status, improving inspection efficiency and reminding personnel to be aware of the equipment's movement and avoid obstacles, further enhancing the equipment's practicality.

[0074] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0075] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A freezing pipe for ground freezing, characterized in that: include, The installation mechanism (100) includes an outer tube (101), a return tube (102) fixedly connected to the outside of the outer tube (101), and an inner tube (103) fixedly connected to the inside of the outer tube (101). A conduit (104) is fixedly connected to the outside of the inner tube (103), and a guide rod (105) is slidably connected to the inside of the conduit (104). The outer tube (101) is fixedly connected to a baffle (108), and the outer tube (101) is fixedly connected to a connecting frame (109). The drive mechanism (200) includes a block (201) fixedly connected to the bottom end of the guide rod (105), a slide rod (202) fixedly connected to the bottom end of the block (201), and a convex ring (203) fixedly connected to the outside of the slide rod (202). A limit rod (204) is fixedly connected to the bottom end of the inner tube (101). A first spring (205) is sleeved on the outside of the limit rod (204). The convex ring (203) can squeeze the first spring (205), and the bottom end of the slide rod (202) slides on the top end of the limit rod (204). The slide bar (202) is fitted with a transmission component (206) on its outer side, the top of the block (201) is provided with an adjustment component (207), and the outer tube (101) is provided with a stirring component (208). The transmission component (206) includes a rotating sleeve (206a) rotatably connected to the top of the connecting frame (109), a drive gear (206b) fixedly connected to the outside of the rotating sleeve (206a), and a spiral groove (206c) formed inside the rotating sleeve (206a). The slide bar (202) is fixedly connected to a protrusion on its outer side, and the protrusion is disposed inside the spiral groove (206c); The adjusting component (207) includes a rotating shaft (207a) rotatably connected inside the inner tube (103), a movable sleeve (207b) rotatably connected outside the rotating shaft (207a), and an adjusting plate (207c) fixedly connected outside the movable sleeve (207b). A hinge ring (207d) is fixedly connected to the outside of the movable sleeve (207b), and a pull rod (207e) is rotatably connected to the inside of the hinge ring (207d). The bottom end of the pull rod (207e) is fixedly connected to the top end of the block (201); The stirring component (208) includes a stirring rod (208a) rotatably connected inside the baffle (108), a driven gear (208b) fixedly connected to the outside of the stirring rod (208a), the driving gear (206b) meshing with the driven gear (208b), and a stirring blade (208c) fixedly connected to the outside of the stirring rod (208a).

2. The freezing pipe for ground freezing according to claim 1, characterized in that: The top end of the outer tube (101) is provided with a triggering component (106), and the top end of the outer tube (101) is provided with a display component (107). The triggering component (106) includes a slide cylinder (106a) fixedly connected to the top end of the outer tube (101), an air cavity (106b) opened inside the slide cylinder (106a), and a compression assembly (106c) adapted to be installed at the top end of the slide cylinder (106a). The extrusion assembly (106c) includes a pressure rod (106c-1) slidably connected to the top of the slide cylinder (106a), a connecting rod (106c-2) fixedly connected to the outside of the pressure rod (106c-1), and a pressure block (106c-3) fixedly connected to the bottom of the pressure rod (106c-1). One end of the connecting rod (106c-2) is fixedly connected to the outside of the guide rod (105); The display component (107) includes a fixing bracket (107a) fixedly connected to the top end of the outer tube (101), a sliding groove (107b) opened on the outside of the fixing bracket (107a), and a connecting hole (107c) opened on the top end of the fixing bracket (107a). The sliding groove (107b) is slidably connected to a connecting block (107d), and the top of the fixing frame (107a) is provided with an observation component (107e). The connecting block (107d) has a connecting cavity (107d-1) inside, and the connecting cavity (107d-1) is composed of a transition cavity (107d-1a), an air inlet (107d-1b), a lower air outlet (107d-1c) and an upper air outlet (107d-1d), and the inner end of the connecting block (107d) is set as a magnet; The observation assembly (107e) includes a sliding sleeve (107e-1) fixedly connected to the top of the mounting bracket (107a), a display rod (107e-2) slidably connected inside the sliding sleeve (107e-1), and a slider (107e-3) fixedly connected to the bottom of the display rod (107e-2). An auxiliary component (208d) is provided at the top of the stirring rod (208a). The auxiliary component (208d) includes a turntable (208d-1) fixedly connected to the top of the stirring rod (208a), an inner cavity (208d-2) opened inside the turntable (208d-1), and an inner rod (208d-3) fixedly connected inside the inner cavity (208d-2). One end of the inner rod (208d-3) is slidably connected to a movable block (208d-4), one end of the movable block (208d-4) is fixedly connected to a movable rod (208d-5), one end of the movable rod (208d-5) is fixedly connected to a push plate (208d-6), the inside of the push plate (208d-6) is provided with an inner plate (208d-7), and a second spring (208d-8) is sleeved on the outside of the inner rod (208d-3). The push plate (208d-6) and the inner plate (208d-7) are made of magnetic metal. During use, the stirring rod (208a) continuously rotates in both directions, causing the turntable (208d-1) fixed at the top of the stirring rod (208a) to rotate. When the turntable (208d-1) rotates, it generates centrifugal force, which causes the movable block (208d-4) and the movable rod (208d-5) to slide outwards. This also causes the second spring (208d-8) to stretch, and the push plate (208d-6) slides outwards. The connecting block (107d) can be pushed to slide inside the slide groove (107b), and the upper air outlet (107d-1d) is aligned with the connecting hole (107c), while the lower air outlet (107d-1c) is blocked. The continuous reciprocating sliding of the blocking block (201) will drive the pressure rod (106c-1) and the pressure block (106c-3) fixed at the bottom of the pressure rod (106c-1) to reciprocate through the connecting rod (106c-2). If the turntable (208d-1) is not rotating, the connecting block (107d) will be magnetically attracted to the surface of the push plate (208d-6). When the pressure block (106c-3) slides downward, the gas inside the slide cylinder (106a) will pass through the air chamber (106b) and then enter the transition chamber (107d-1a) through the air inlet (107d-1b). Since the upper air outlet (107d-1d) is blocked, the gas can only be discharged through the lower air outlet (107d-1c). Conversely, when the pressure block (106c-3) slides upward, it will draw in air. When the turntable (208d-1) is rotating, it will push the connecting block (107d) outward through the push plate (208d-6). With the assistance of the inner plate (208d-7), multiple sets of push plates (208d-6) can stably push the connecting block (107d) to avoid jamming. At this time, when the pressure block (106c-3) slides downward, the gas inside the slide cylinder (106a) will pass through the air chamber (106b) and then through the air intake. When the gas enters the transition chamber (107d-1a) through the outlet (107d-1b), and the lower outlet (107d-1c) is blocked, the gas will pass through the upper outlet (107d-1d) and the connecting hole (107c) and enter the sliding sleeve (107e-1), pushing the slider (107e-3) and the display rod (107e-2) to slide upward. Conversely, when the pressure block (106c-3) slides upward, it will drive the display rod (107e-2) to slide downward.

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