Inner sleeve of deep ground temperature sensor for meteorological station and sleeve assembly

Abstract

The utility model discloses a deep ground temperature sensor inner sleeve for a meteorological station, which comprises an inner sleeve body, an upper sealing cover and a lower sealing cover, the upper sealing cover and the lower sealing cover are respectively sealed at two ends of the inner sleeve body, an inductive head mounting seat for mounting an inductive head is arranged on the upper side of the lower sealing cover, and a through hole for a sensing part of the inductive head to penetrate out is arranged on the lower sealing cover. A cavity module and a hydrogel module which are axially arranged are arranged between the inductive head mounting seat and the upper sealing cover, a data line of the inductive head is arranged at a wiring gap among the cavity module, the hydrogel module and the inner wall of the inner sleeve body, and in the assembly process, the hydrogel module is gradually extruded and deformed to fill the wiring gap. The utility model discloses a deep ground temperature sensor sleeve assembly for a meteorological station. The deep ground temperature sensor sleeve assembly for the meteorological station comprises an outer sleeve, wherein the inner sleeve of the deep ground temperature sensor for the meteorological station is arranged in the outer sleeve. According to the technical scheme, heat exchange between the upper position and the lower position can be effectively isolated, and rapid replacement for inspection is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep layer ground temperature sensor technical field especially point to a kind of deep layer ground temperature sensor inner sleeve for weather station and sleeve assembly. BACKGROUND

[0002] ‌The structural composition of deep layer ground temperature sensor mainly includes two parts: core component and auxiliary structure.

[0003] The core component includes the following components: thermosensitive element: usually adopts platinum resistance (PT100) or thermistor or thermocouple, for sensing soil temperature and converting into electrical signal; protective sleeve: also known as inner sleeve, made of hard rubber, prevent soil pressure, moisture and chemical erosion; cable: shielded twisted pair or armored cable, transmit signal and resist electromagnetic interference; sealing material: epoxy resin or rubber sealing ring, ensure that internal element is waterproof and moistureproof.

[0004] ‌The auxiliary structure includes the following components: fixed support: also known as outer sleeve, located at the outer periphery of inner sleeve, for fixing the vertical position of sensor in borehole or observation well; heat insulation layer: used to reduce the interference of external environment (such as ground temperature) on deep layer measurement, can be selected according to the depth of measured ground temperature, accuracy requirement of measurement result and other actual needs.

[0005] As disclosed in the utility model patent with authorized announcement date of 2024.03.19 and authorized announcement number of CN 220625528 U, a kind of novel automatic weather station deep layer ground temperature sensor sleeve, as shown in Figure 1 The utility model discloses a kind of novel automatic weather station deep layer ground temperature sensor sleeve, as shown in Fig. 1, including outer sleeve 1 and inner sleeve 2, one end of outer sleeve 1 is fixedly connected with connector 3, the top of connector 3 is equipped with threaded mouth 7, threaded mouth 7 is fixedly connected with protective cover 4, the top of threaded sleeve, the inside of outer sleeve 1 is equipped with insertion hole 9, inner sleeve 2 is located inside insertion hole 9;The inside of inner sleeve 2 is placed with inductive head 8, the bottom of inner sleeve 2 is fixedly connected with metal fastening lock 13, inner sleeve 2 is fixedly connected with inductive head 8 by metal fastening lock 13, the bottom of outer sleeve 1 is fixedly connected with metal seal cap 10, the bottom of inductive head 8 and the inner wall bottom of metal seal cap 10 are in contact with each other;The outside of connector 3 is fixedly connected with data external connection line 6, one end of data external connection line 6 is fixedly connected with second terminal head 14, one end of data internal connection line 11 of inductive head 8 is fixedly connected with data internal connection line 11, one end of data internal connection line 11 is fixedly connected with first terminal head 12, first terminal head 12 and second terminal head 14 are mutually inserted.

[0006] The replacement method of deep layer ground temperature sensor includes the following basic steps:

[0007] ‌1. Preparation: Tools: multimeter, wrench, waterproof tape, new sensor, data logger; Safety measures: disconnect power / signal lines, wear anti-static equipment.

[0008] ‌2. Disassemble old sensor: Position: find the sensor installation location (mark or drawing assistance); disconnect: separate the cable interface with the data collector; remove the fixing: loosen the bracket screws, slowly pull out the sensor and sleeve, avoid damaging the hole wall.

[0009] ‌3. Install new sensor: Calibration verification: test the output signal of the new sensor in advance; fixed position: insert the sensor into the original hole, adjust to the target depth through the bracket (refer to the original installation parameters); sealing treatment: seal the cable interface with waterproof tape or silicone to prevent water seepage.

[0010] ‌4. System recovery: Connect the cable: reconnect the data collector and check the signal stability; backfill repair: restore the soil / drilling structure to ensure consistency with the original environment; data verification: compare the data of the new and old sensors to confirm the measurement consistency.

[0011] In addition, the following points should be noted: calibration requirements: after replacement, the sensor needs to be recalibrated to ensure data accuracy; environmental interference: avoid operating in rainy and snowy weather to prevent hole collapse or equipment from getting wet; record and file: record the replacement time, depth, model, etc. for future maintenance. As can be seen, the replacement operation of the ground temperature sensor is relatively complex, therefore, the above-mentioned utility model patent provides a deep ground temperature sensor sleeve which is convenient to replace and detect, but the inner cavity of the inner sleeve 2 is through from top to bottom, and no corresponding thermal insulation layer is provided, which allows the internal air to exchange heat within the observation depth range of 40, 80, 160, 320 cm, which will cause distortion of the deep low temperature measured by the sensing head 8. If the person skilled in the art finds this problem during implementation, and uses a filler as a thermal insulation layer in the inner cavity of the inner sleeve 2 for thermal insulation, the filler in the inner sleeve 2 and the sensing head 8, data inner connecting wire 11, etc. structure will be difficult to take out and install, and the purpose of the invention of being convenient to replace cannot be achieved.

[0012] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present utility model, and should not be regarded as acknowledging or implying in any form that the above technical information constitutes prior art known to those skilled in the art. Utility model content

[0013] In view of the deficiencies in the above background technology, the present utility model provides a deep ground temperature sensor inner sleeve and sleeve assembly for a weather station, which solves the technical problem of mutual restriction between replacement convenience and thermal insulation effect of the existing deep ground temperature sensor.

[0014] The technical scheme of the present application is:

[0015] The inner sleeve of the deep ground temperature sensor for the weather station comprises an inner sleeve body, an upper sealing cover and a lower sealing cover respectively sealed at both ends of the inner sleeve body, the upper side of the lower sealing cover is provided with a sensing head mounting seat for mounting a sensing head, the lower sealing cover is provided with a through hole for the sensing part of the sensing head to pass through, the sensing head mounting seat and the upper sealing cover are provided with an axially arranged cavity module and a hydrogel module, the data line of the sensing head is arranged at the wiring gap between the cavity module, the hydrogel module and the inner wall of the inner sleeve body, and the hydrogel module is gradually deformed and filled in the wiring gap during the installation of the upper sealing cover and the lower sealing cover.

[0016] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the cavity module and the hydrogel module are provided with an elastic module.

[0017] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the elastic module comprises a spring seat one in top contact with the cavity module and a spring seat two in top contact with the hydrogel module, and an elastic component is arranged between the spring seat one and the spring seat two.

[0018] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the elastic component is a spiral spring, an air spring or a rubber spring.

[0019] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the hydrogel module comprises a rubber outer garment and a hydrogel filled in the rubber outer garment.

[0020] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the cavity module comprises an elastic outer garment and compressed air filled in the elastic outer garment, or the cavity module comprises a hard shell, and the hard shell is a vacuum cavity.

[0021] On the basis of the above technical scheme, as a preferred technical scheme of the inner sleeve of the deep ground temperature sensor for the weather station, the cavity module, the hydrogel module and the elastic module are all provided with a plurality of modules, and the upper sealing cover and the sensing head mounting seat are in direct contact with the upper end and the lower end of the hydrogel module, respectively.

[0022] On the basis of the above technical solutions, as a preferred technical solution of the inner sleeve of the deep ground temperature sensor for the meteorological station, the upper sealing cover comprises a end cover body which is threadedly connected with the inner wall of the inner sleeve body, and a extrusion plate for extruding the water gel module is connected to the lower end surface of the end cover body through a stiffening rib.

[0023] A deep ground temperature sensor sleeve assembly for a meteorological station comprises an outer sleeve, and the inner sleeve of the deep ground temperature sensor for the meteorological station described in any one of the above technical solutions is arranged in the outer sleeve, and a guiding and positioning structure is arranged between the inner sleeve body and the outer sleeve.

[0024] On the basis of the above technical solutions, as a preferred technical solution of the deep ground temperature sensor sleeve assembly for the meteorological station, the upper and lower ends of the outer sleeve are threadedly connected with an upper end cover and a lower end cover respectively, the lower end cover and the lower sealing cover are both copper structural members, the contact surface between the lower sealing cover and the lower end cover is a spherical surface, and the lower end cover is provided with a through hole through which the sensing part passes.

[0025] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0026] The cavity module and the water gel module in the deep ground temperature sensor inner sleeve and sleeve assembly for the meteorological station are not only convenient to fill into the inner cavity of the inner sleeve body, but also do not affect the arrangement and pulling of the data line of the sensing head when not under pressure. Through the extrusion of the upper sealing cover and the lower sealing cover, the corresponding wiring gap can be filled, and the heat insulation between the upper and lower positions is realized, so that the measurement of the deep ground temperature by the sensing head is more accurate and reliable. Further, the elastic module is arranged between the cavity module and the water gel module, which can not only improve the extrusion sealing effect during assembly, but also improve the convenience of disassembly. When the sensing head needs to be replaced, the cavity module and the water gel module will automatically reset under the action of the elastic module after the upper sealing cover and the lower sealing cover are removed, and then the sensing head can be taken out conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 It is an exploded view of the new automatic meteorological station deep ground temperature sensor sleeve in the background art;

[0029] Figure 2 It is a sectional view of the deep ground temperature sensor sleeve assembly for the meteorological station provided in the present application;

[0030] Figure 3 is Figure 2 enlarged view of A in the middle;

[0031] Figure 4 is Figure 2 enlarged view of B in the middle;

[0032] Figure 5 is Figure 2 enlarged view of C in the middle;

[0033] Figure 6 is a top view of the inner sleeve body after being fitted to the outer sleeve.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1, outer sleeve; 2, inner sleeve; 3, connector; 4, protective cover; 6, data external connection line; 7, threaded port; 8, induction head; 9, jack; 10, metal cap; 11, data internal connection line; 12, first terminal head; 13, metal fastening lock; 14, second terminal head.

[0036] Inner sleeve body 100, inner sleeve positioning slider 101, inner sleeve axial sliding groove 102;

[0037] Upper sealing cover 200, end cover body 201, stiffening rib 202, extrusion plate 203, rotating groove 204;

[0038] Lower sealing cover 300;

[0039] Induction head 400, induction part 401;

[0040] Induction head mounting seat 500, mounting seat positioning slider 501;

[0041] Cavity module 600;

[0042] Hydrogel module 700;

[0043] Elastic module 800, spring seat one 801, spring seat two 802, elastic component 803;

[0044] Outer sleeve 900, upper end cover 901, lower end cover 902, outer sleeve axial sliding groove 903, outer sleeve circumferential blocking groove 904. DETAILED DESCRIPTION

[0045] 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 core idea of the present application and the following embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] The present application provides these examples is to make the present application and complete, and to the person skilled in the art fully express the scope of the present application. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0047] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "several" is greater than or equal to two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] In addition, "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0049] It should also be noted that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected through intermediate medium; It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0050] All terms used in the present application have the same meaning as understood by those skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.

[0051] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification.

[0052] A deep geothermal temperature sensor inner sleeve for a weather station comprises an inner sleeve body 100, an upper sealing cover 200 and a lower sealing cover 300 respectively sealing at both ends of the inner sleeve body 100. The inner sleeve body 100, the upper sealing cover 200 and the lower sealing cover 300 are used to encapsulate a sensing head 400, which is a thermosensitive element, such as a platinum resistance or a thermistor or a thermocouple. The sensing head 400 is filled with epoxy resin glue at the bottom of the inner sleeve body 100, and the data line of the sensing head 400 extends to the top along the inside of the inner sleeve body 100.

[0053] The upper side of the lower sealing cover 300 is provided with a sensing head mounting seat 500 for mounting the sensing head 400, and the lower sealing cover 300 is provided with a through hole for the sensing part 401 of the sensing head 400 to pass through. That is, the sensing head mounting seat 500 is located inside the inner sleeve body 100, and before the epoxy resin glue is filled and the upper sealing cover 200 and the lower sealing cover 300 are assembled in place, the sensing head mounting seat 500 can move along the length direction of the inner sleeve body 100.

[0054] The sensing head mounting seat 500 and the upper sealing cover 200 are provided with an axially arranged cavity module 600 and a hydrogel module 700, and the data line of the sensing head 400 is arranged at the wiring gap between the cavity module 600, the hydrogel module 700 and the inner wall of the inner sleeve body 100. Before the upper sealing cover 200 and the lower sealing cover 300 are installed, the cavity module 600 and the hydrogel module 700 can freely move up and down in the inner sleeve body 100. During the installation of the upper sealing cover 200 and the lower sealing cover 300, the hydrogel module 700 is gradually deformed by extrusion to fill the wiring gap, thereby achieving heat insulation of the up and down positions, and also extruding and positioning the data line.

[0055] On the basis of the above-mentioned embodiments, as a preferred embodiment of the inner sleeve of the deep ground temperature sensor for the meteorological station, the elastic module 800 is arranged between the cavity module 600 and the hydrogel module 700. Since the cavity module 600, the hydrogel module 700 and the elastic module 800 can all move freely in the inner sleeve body 100, the elastic module 800 can provide a bidirectional elastic force in the upward and downward directions during the packaging of the upper sealing cover 200 and the lower sealing cover 300, so that the cavity module 600 and / or the hydrogel module 700 have sufficient deformation amount and fill the wiring gap as much as possible. When the sensing head 400 needs to be replaced, as long as the upper sealing cover 200 and the lower sealing cover 300 are opened, the elastic module 800 can automatically press the cavity module 600 and the hydrogel module 700 to the initial position and state, further improving the convenience of replacement.

[0056] On the basis of the above-mentioned embodiments, as a preferred embodiment of the inner sleeve of the deep ground temperature sensor for the meteorological station, the elastic module 800 includes a spring seat one 801 in top contact with the cavity module 600, a spring seat two 802 in top contact with the hydrogel module 700, and an elastic component 803 arranged between the spring seat one 801 and the spring seat two 802. In this embodiment, the elastic module 800 is designed as a structure with spring seats at both ends, further improving the stability and reliability of the elastic component 803 in supporting the adjacent cavity module 600 and the hydrogel module 700 during the compression deformation and recovery elongation process, ensuring the consistency of the stress direction, and avoiding the elastic component 803 from piercing the cavity module 600 and the hydrogel module 700.

[0057] On the basis of the above-mentioned embodiments, as a preferred embodiment of the inner sleeve of the deep ground temperature sensor for the meteorological station, the elastic component 803 is a spiral spring, an air spring or a rubber spring. Under the technical guidance of this embodiment, those skilled in the art can select a suitable elastic component 803 according to actual needs.

[0058] On the basis of the above-mentioned embodiments, as a preferred embodiment of the inner sleeve of the deep ground temperature sensor for the meteorological station, the hydrogel module 700 includes a rubber outer cover and a hydrogel filled in the rubber outer cover.

[0059] On the basis of the above-mentioned embodiments, as a preferred embodiment of the inner sleeve of the deep ground temperature sensor for the meteorological station, the cavity module 600 includes an elastic outer cover and compressed air filled in the elastic outer cover, so that the cavity module 600 and the hydrogel module 700 can deform synchronously after being compressed or the external force being removed. The elastic outer cover can be made of a rubber film, an ethylene-vinyl acetate copolymer EVA film, a polyvinyl chloride PVC film or a thermoplastic polyurethane TPU film, etc. Of course, in addition to the rubber outer cover, the hydrogel module 700 can also be made of an outer cover made of the above-mentioned film.

[0060] As another preferred embodiment, the cavity module 600 comprises a hard shell, and a vacuum cavity is arranged in the hard shell, so that better heat insulation effect can be obtained. Since the cavity module 600 is a hard shell, when the upper sealing cover 200 and the lower sealing cover 300 are assembled with the inner sleeve body 100, only the hydrogel module 700 is deformed by extrusion, and the vacuum cavity does not deform, so that the hydrogel module 700 can obtain a larger deformation amount, and the wiring gap can be filled more fully and densely.

[0061] On the basis of the above-mentioned embodiments, as a preferred embodiment of the deep geothermal temperature sensor inner sleeve for a meteorological station, the cavity module 600, the hydrogel module 700 and the elastic module 800 are all arranged in several numbers, which not only facilitates assembly and disassembly, but also forms multi-stage sealing and heat insulation, and the cavities formed between the sealing parts form cavity heat insulation. The upper sealing cover 200 and the induction head mounting seat 500 are in direct contact with the hydrogel module 700 at the upper end and the lower end, respectively.

[0062] On the basis of the above-mentioned embodiments, as a preferred embodiment of the deep geothermal temperature sensor inner sleeve for a meteorological station, the upper sealing cover 200 comprises an end cover body 201 which is threadedly connected with the inner wall of the inner sleeve body 100, and the outer end surface of the end cover body 201 is provided with a rotating groove for screwing, and preferably adopts a hexagonal groove structure which is adapted to a hexagonal wrench. The lower end surface of the end cover body 201 is connected with an extrusion plate 203 for extruding the hydrogel module 700 through a stiffening rib 202. Preferably, the lower sealing cover 300 is also threadedly connected with the inner wall of the inner sleeve body 100.

[0063] A deep geothermal temperature sensor sleeve assembly for a meteorological station comprises an outer sleeve 900, and the inner sleeve described in any one of the above-mentioned embodiments for a meteorological station is arranged in the outer sleeve 900, and a guide positioning structure is arranged between the inner sleeve body 100 and the outer sleeve 900.

[0064] As Figure 6As shown, the guiding positioning structure comprises an outer sleeve axial sliding groove 903 arranged on the inner wall of the outer sleeve 900, and one end of the outer sleeve axial sliding groove 903 away from the end of the outer sleeve 900 is in communication with the outer sleeve circumferential blocking groove 904, that is, the outer sleeve axial sliding groove 903 is arranged along the length direction of the outer sleeve 900, and the outer sleeve circumferential blocking groove 904 is arranged along the circumferential direction of the outer sleeve 900. The outer wall of the inner sleeve body 100 is provided with an inner sleeve positioning sliding block 101 matched with the outer sleeve axial sliding groove 903. Through the matching of the inner sleeve positioning sliding block 101 and the outer sleeve axial sliding groove 903, the inner sleeve body 100 can be inserted into the outer sleeve 900 along the axis direction of the outer sleeve 900. After being inserted to the target depth, the inner sleeve body 100 is rotated, and then the inner sleeve positioning sliding block 101 can be clamped into the outer sleeve circumferential blocking groove 904, thereby realizing the guidance and connection of the two.

[0065] Preferably, the inner sleeve positioning sliding block 101 is provided with eight, four inner sleeve positioning sliding blocks 101 being a group, the inner sleeve positioning sliding blocks 101 in each group being equally angularly distributed around the axis of the inner sleeve body 100, and the two groups of inner sleeve positioning sliding blocks 101 being arranged in a length direction of the inner sleeve body 100 and corresponding to each other in up and down directions, so that the outer sleeve axial sliding groove 903 is provided with four, and the outer sleeve circumferential blocking groove 904 is provided with eight.

[0066] On the basis of the above-mentioned embodiment, as a preferred embodiment of the deep geothermal sensor sleeve assembly for the weather station, the upper and lower ends of the outer sleeve 900 are respectively threadedly connected with an upper end cover 901 and a lower end cover 902, and the lower end cover 902 and the lower sealing cover 300 are both copper structural members. Preferably, the inner wall of the outer sleeve 900 and the outer wall of the inner sleeve body 100 are filled with a thermal insulation material, such as a ceramic fiber, aerogel felt or the like.

[0067] The contact surface between the lower sealing cover 300 and the lower end cover 902 is a spherical surface 301, which further guarantees the alignment of the inner sleeve and the outer sleeve 900, and further improves the fit of the two, and in addition, the lower end cover 902 and the lower sealing cover 300 are both copper structural members, and the lower end cover 902 is provided with a through hole for the inductive part 401 to pass out, so that the inductive head 400 passing out of the lower sealing cover 300 and the lower end cover 902 can obtain more accurate deep geothermal measurement effect.

[0068] Preferably, a guide positioning structure is also arranged between the lower end of the inner sleeve body 100 and the induction head mounting seat 500, specifically comprising an inner sleeve axial sliding groove 102 arranged on the inner wall of the inner sleeve body 100, and an inner sleeve circumferential blocking groove in communication with the inner sleeve axial sliding groove 102, and the outer periphery of the induction head mounting seat 500 is provided with a mounting seat positioning sliding block 501 matched with the inner sleeve axial sliding groove 102. The induction head mounting seat 500 can be inserted into the inner sleeve body 100 along the axial direction of the inner sleeve body 100, in the process, the mounting seat positioning sliding block 501 is in sliding fit with the inner sleeve axial sliding groove 102, when inserted to the target depth, rotating the induction head mounting seat 500, then the mounting seat positioning sliding block 501 can be clamped into the inner sleeve circumferential blocking groove, thereby realizing the guidance and connection of the two.

[0069] It should be noted that the upper sealing cover 200 and the upper end cover 901 are both provided with wire grooves for data lines to pass through. The details of the utility model not described are conventional technical means known to those skilled in the art.

[0070] The above shows and describes the basic principle, main features and beneficial effects of the utility model. The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A deep geothermal temperature sensor inner casing for a weather station, comprising an inner casing body (100) and an upper sealing cover (200) and a lower sealing cover (300) respectively sealed at both ends of the inner casing body (100), characterized in that: The upper side of the lower sealing cover (300) is provided with an inductive head mounting seat (500) for mounting an inductive head (400), the lower sealing cover (300) is provided with a through hole for the inductive part (401) of the inductive head (400) to pass through, the inductive head mounting seat (500) and the upper sealing cover (200) are provided with an axially arranged cavity module (600) and a hydrogel module (700), the data line of the inductive head (400) is arranged at a wiring gap between the cavity module (600), the hydrogel module (700) and the inner sleeve body (100) inner wall, during the installation process of the upper sealing cover (200) and the lower sealing cover (300), the hydrogel module (700) is gradually deformed by extrusion to fill the wiring gap.

2. The inner casing for a deep ground temperature sensor for a weather station according to claim 1, characterized in that: The cavity module (600) and the hydrogel module (700) are provided with an elastic module (800).

3. The inner casing for a deep ground temperature sensor for a weather station according to claim 2, characterized in that: The elastic module (800) includes a spring seat one (801) in contact with the top of the cavity module (600), a spring seat two (802) in contact with the top of the hydrogel module (700), and an elastic component (803) between the spring seat one (801) and the spring seat two (802).

4. The inner casing for a deep ground temperature sensor for a weather station according to claim 3, characterized in that: The elastic component (803) is a spiral spring, an air spring or a rubber spring.

5. The inner casing for a deep ground temperature sensor for a weather station according to any one of claims 1 to 4, characterized in that: The hydrogel module (700) includes a rubber coat and a hydrogel filled in the rubber coat.

6. The inner casing for a deep ground temperature sensor for a weather station according to claim 5, characterized in that: The cavity module (600) includes an elastic coat and compressed air filled in the elastic coat, or the cavity module (600) includes a hard shell with a vacuum cavity inside.

7. The inner casing for a deep ground temperature sensor for a weather station according to claim 6, characterized in that: The cavity module (600), the hydrogel module (700) and the elastic module (800) are provided with a plurality of modules, and the upper sealing cover (200) and the inductive head mounting seat (500) are in direct contact with the upper end and the lower end of the hydrogel module (700).

8. The inner casing for a deep ground temperature sensor for a weather station according to claim 7, characterized in that: The upper sealing cover (200) includes an end cover body (201) threadedly connected with the inner wall of the inner sleeve body (100), and the lower end surface of the end cover body (201) is connected with an extrusion plate (203) for extruding the hydrogel module (700) through a stiffening rib (202).

9. A deep ground temperature sensor sleeve assembly for a weather station comprising an outer sleeve (900) characterised in that: The outer sleeve (900) is provided with the inner sleeve of the deep ground temperature sensor for a weather station according to any one of claims 1-8, and a guide positioning structure is arranged between the inner sleeve body (100) and the outer sleeve (900).

10. The deep ground temperature sensor well casing assembly for a weather station of claim 9, wherein: The upper and lower ends of the outer sleeve (900) are respectively threadedly connected with an upper end cover (901) and a lower end cover (902), the lower end cover (902) and the lower sealing cover (300) are both copper structural members, the contact surface between the lower sealing cover (300) and the lower end cover (902) is a spherical surface (301), and the lower end cover (902) is provided with a through hole for the inductive part (401) to pass through.

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