Mounting structure of chimney single steel inner cylinder hydraulic lifting device

Abstract

The utility model relates to a mounting structure of a chimney single steel inner cylinder hydraulic lifting device, which comprises a modularized detachable base and a mounting platform, the modularized detachable base is mounted at the top end of a chimney outer cylinder, the mounting platform is fixedly mounted on the modularized detachable base, and the hydraulic lifting device is mounted on the mounting platform; the modularized detachable base comprises an outer side installation unit, an inner side installation unit and an adjusting unit, the adjusting unit is arranged on the top between the opposite faces of the outer side installation unit and the inner side installation unit, a door-shaped structure is jointly formed, the top end of the chimney outer cylinder is sleeved with the door-shaped structure, and fixing mechanisms are arranged among the outer side installation unit, the inner side installation unit and the adjusting unit. The lower surface of the adjusting unit abuts against the top end of the chimney outer cylinder, the outer side installation unit abuts against the outer surface of the chimney outer cylinder, the inner side installation unit abuts against the inner surface of the chimney outer cylinder, and the installation platform is installed on the upper surface of the inner side installation unit. The installation structure is convenient to disassemble and assemble and can be repeatedly used, and the utilization rate of the installation structure is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power foundation construction, in particular to an installation structure of a chimney single steel inner tube hydraulic lifting device. Background Art

[0002] At present, in the installation process of the single steel inner tube of the chimney, the hydraulic lifting inverted installation method is usually adopted. In this method, it is necessary to set an installation unit for installing a hydraulic lifting device (such as a hydraulic jack (including a hydraulic control part)) on the chimney outer tube; the installation unit is generally a box beam welded from profiles, and is directly welded to the top of the chimney outer tube, and the box beam matches the chimney outer tube, and the hydraulic lifting device is fixedly installed on the box beam, and a steel wire rope for lifting the steel inner tube is fixedly connected to the hydraulic lifting device, and the other end of the steel wire rope is connected to the single steel inner tube of the chimney. Along with the movement of the hydraulic lifting device, the single steel inner tube of the chimney is driven to move upward by the steel wire rope, and then the single steel inner tube of the chimney is welded and lengthened from the lower end of the single steel inner tube of the chimney, and the cycle is repeated in sequence to complete the installation of the single steel inner tube of the chimney.

[0003] Since the box beam currently used for fixing the hydraulic lifting device is erected on the top of the chimney outer tube, each hydraulic lifting device requires a corresponding box beam. In order to meet the safety requirements for the installation of a single steel inner tube of the chimney, multiple box beams are needed; and each chimney outer tube needs to be provided with a corresponding box beam of the hydraulic lifting device. Due to the different structural sizes of the chimney outer tube, the box beam for installing the hydraulic lifting device can only adapt to its corresponding chimney outer tube and cannot be reused in chimney outer tube structures of other sizes, resulting in a large amount of steel that can only be used once, with a very low utilization rate, causing waste of steel. Summary of the invention

[0004] The utility model aims to solve the deficiencies of the prior art and provides a mounting structure of a chimney single steel inner barrel hydraulic lifting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an installation structure of a hydraulic lifting device for a chimney single steel inner tube, comprising a modular detachable base and a mounting platform, the modular detachable base is mounted on the top of the chimney outer tube, the mounting platform is fixedly mounted on the modular detachable base, and the hydraulic lifting device is mounted on the mounting platform;

[0006] The modular detachable base includes an outer mounting unit, an inner mounting unit, and an adjustment unit. The adjustment unit is arranged at the top between the opposite surfaces of the outer mounting unit and the inner mounting unit, together forming a door-shaped structure and being mounted on the top of the chimney outer tube. A fixing mechanism is provided between the outer mounting unit, the inner mounting unit, and the adjustment unit. The lower surface of the adjustment unit abuts against the top of the chimney outer tube, the outer mounting unit abuts against the outer surface of the chimney outer tube, the inner mounting unit abuts against the inner surface of the chimney outer tube, and the mounting platform is installed on the upper surface of the inner mounting unit.

[0007] In particular, the outer mounting unit includes an outer mounting body, an outer adjustment plate, an outer fastening mounting plate, and an outer fastening plate from the outside to the inside. The outer mounting body is an inverted L-shaped plate structure. The outer adjustment plate and the outer fastening mounting plate are detachably fixed on the angle side wall of the outer mounting body. The outer fastening plate is slidably inserted into the outer fastening mounting plate on the side close to the chimney outer tube.

[0008] In particular, a plurality of corresponding first locking threaded through holes are provided between the outer mounting body and the outer adjusting plate, a plurality of first locking threaded blind holes corresponding to the first locking threaded through holes are provided on the outer fastening mounting plate, a plurality of first locking nuts corresponding to the first locking threaded through holes are provided on the side of the outer mounting body away from the chimney outer tube, the first locking screw is coaxially connected with the first locking nut, the first locking threaded through hole and the first locking threaded blind hole, and the outer mounting body, the outer adjusting plate and the outer fastening mounting plate are connected and fixed as a whole through the first locking screw.

[0009] In particular, a plurality of first sliding blocks are provided on the side of the outer fastening plate away from the chimney outer tube, a plurality of first sliding grooves corresponding to the first sliding blocks are provided on the outer fastening plate, the first sliding grooves are slidably inserted in the first sliding grooves, and the side of the outer fastening plate away from the outer fastening mounting plate is a concave arc surface adapted to the outer surface of the chimney outer tube, and the cross-sectional shapes of the first sliding grooves and the first sliding blocks are both dovetail-shaped.

[0010] In particular, the inner mounting unit includes, from the inside to the outside, an inner mounting body, an inner adjustment plate, an inner fastening mounting plate, and an inner fastening plate. The inner mounting body is an inverted L-shaped plate structure. The inner adjustment plate and the inner fastening mounting plate are detachably fixed on the angled side wall of the inner mounting body. The inner fastening plate is slidably inserted into the inner fastening mounting plate on the side close to the chimney outer tube.

[0011] In particular, a plurality of corresponding second locking threaded through holes are provided between the inner mounting body and the inner adjusting plate, a plurality of second locking threaded blind holes corresponding to the second locking threaded through holes are provided on the inner fastening mounting plate, a plurality of second locking nuts corresponding to the second locking threaded through holes are provided on the side of the inner mounting body away from the chimney outer tube, a second locking screw is coaxially connected with the second locking nut, the second locking threaded through hole and the second locking threaded blind hole, and the inner mounting body, the inner adjusting plate and the inner fastening mounting plate are connected and fixed as a whole through the second locking screw.

[0012] In particular, a plurality of second sliding blocks are provided on the side of the inner fastening plate away from the chimney outer tube, a plurality of second sliding grooves corresponding to the second sliding blocks are provided on the inner fastening plate, the second sliding grooves are slidably inserted in the second sliding grooves, and the side of the inner fastening plate away from the inner fastening mounting plate is an outer convex arc surface adapted to the inner surface of the chimney outer tube, and the cross-sectional shapes of the second sliding grooves and the second sliding blocks are both dovetail-shaped.

[0013] In particular, the fixing mechanism includes a fixing nut and a connecting rod. The adjusting unit is a plate-like structure. The horizontal plate of the outer mounting body, the horizontal plate of the inner mounting body, and the adjusting unit are provided with a number of corresponding connecting through holes. The connecting rod passes through the connecting through holes, and the two ends are locked by threaded fixing nuts.

[0014] Particularly, the mounting platform is a box-type structural beam, and a plurality of triangular reinforcement plates are provided between the mounting platform and the angled side wall of the inner mounting unit.

[0015] The beneficial effect of the utility model is as follows: the utility model provides a modular detachable base and an installation platform. During construction, an outer installation unit, an inner installation unit and a first adjustment unit form a door-shaped structure that straddles the top of the chimney outer tube. The outer installation unit and the inner installation unit abut against the outer side surface and the inner side surface of the chimney outer tube to limit the displacement of the modular base, so that the hydraulic lifting device can stably lift the single steel inner tube of the chimney after being installed on the installation platform; moreover, through the modular disassembly and assembly of each component, the installation structure can be reused many times and applied to different chimney outer tubes, effectively improving the utilization rate of the installation structure and reducing the one-time waste of steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the assembly of the utility model and the chimney outer tube;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a left view of the utility model;

[0019] Figure 4 for Figure 3AA cross-sectional view in FIG.

[0020] Figure 5 It is the front view of the utility model;

[0021] Figure 6 It is a top view of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the outer fastening plate of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the inner fastening plate of the utility model;

[0024] Fig. 9 It is a schematic diagram of the structure of the outer side adjustment plate or the inner side adjustment plate of the utility model;

[0025] Fig.10 It is a schematic diagram of the structure of the outer fastening mounting plate or the inner fastening mounting plate of the utility model;

[0026] In the figure:

[0027] 100- chimney outer tube;

[0028] 200-modular detachable base; 201-outer mounting unit; 2011-outer mounting body; 2012-outer adjustment plate; 2013-outer fastening mounting plate; 2014-outer fastening plate; 2015-first locking nut; 2016-first locking screw; 2017-first slider; 202-inner mounting unit; 2021-inner mounting body; 2022-inner adjustment plate; 2023-inner fastening mounting plate; 2024-inner fastening plate; 2025-second locking nut; 2026-second locking screw; 2027-second slider; 203-adjustment unit;

[0029] 300-installation platform; 301-triangular reinforcement plate;

[0030] 400-fixing nut; 401-connecting rod;

[0031] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0033] like Figure 1-Figure 10As shown, a mounting structure of a hydraulic lifting device for a single steel inner tube of a chimney includes a modular detachable base 200 and a mounting platform 300. The modular detachable base 200 is mounted on the top of the chimney outer tube 100, the mounting platform 300 is fixedly mounted on the modular detachable base 200, and the hydraulic lifting device is mounted on the mounting platform 300.

[0034] The modular detachable base 200 includes an outer mounting unit 201, an inner mounting unit 202, and an adjustment unit 203. The adjustment unit 203 is arranged at the top between the opposite surfaces of the outer mounting unit 201 and the inner mounting unit 202, and together form a door-shaped structure and is sleeved on the top of the chimney outer tube 100. A fixing mechanism is provided between the outer mounting unit 201, the inner mounting unit 202, and the adjustment unit 203. The lower surface of the adjustment unit 203 abuts against the top of the chimney outer tube 100, the outer mounting unit 201 abuts against the outer surface of the chimney outer tube 100, and the inner mounting unit 20 2 is in contact with the inner surface of the chimney outer tube 100, which can limit the displacement of the modular detachable base 200, so that the hydraulic lifting device can stably lift the single steel inner tube of the chimney after being installed on the installation platform 300. The installation platform 300 is installed on the upper surface of the inner installation unit 202. The installation platform 300 is a box-type structural beam. A plurality of triangular reinforcing plates 301 are arranged between the installation platform 300 and the angled side wall of the inner installation unit 202. The two ends of the box-type structural beam are respectively welded by sealing plates to effectively improve the structural strength of the installation platform 300 and improve the stability of the installation structure.

[0035] Specifically, the outer mounting unit 201, the inner mounting unit 202 and the adjustment unit 203 are all modular units, wherein the outer mounting unit 201 and the inner mounting unit 202 are components composed of multiple modular components, and the adjustment unit 203 is a plate-like structure, which is designed according to the size of the chimney outer tube 100, thereby realizing the modularization, standardization and customization of the installation structure of the hydraulic lifting device. For chimney outer tubes 100 of different thicknesses, it is only necessary to replace the adjustment unit 203 of the corresponding size in a targeted manner, so that the installation structure can be located at the top of the chimney outer tube 100 to realize the installation of the hydraulic lifting device; through the modular disassembly and assembly of each component, the installation structure can be reused multiple times, effectively improving the utilization rate of the installation structure and reducing the one-time waste of steel.

[0036] In the prior art, both ends of the box-type structural beam are in contact with the chimney outer tube 100, and the contact area is small, which makes the stress condition of the chimney outer tube 100 worse; in the present application, by adjusting the location of the adjustment unit 203 at the top of the chimney outer tube 100, the contact area between the installation structure and the chimney outer tube 100 can be effectively increased, so that the force during the installation of the single steel inner tube of the chimney is evenly distributed on the chimney outer tube 100, effectively improving the stress condition of the chimney outer tube 100.

[0037] The outer mounting unit 201 includes, from the outside to the inside, an outer mounting body 2011, an outer adjusting plate 2012, an outer fastening mounting plate 2013, and an outer fastening plate 2014. The outer mounting body 2011 is an inverted L-shaped plate structure. The outer adjusting plate 2012 and the outer fastening mounting plate 2013 are detachably fixed on the angled side wall of the outer mounting body 2011. The outer fastening plate 2014 is slidably plugged into the outer fastening mounting plate 2013 on the side close to the chimney outer tube 100. A number of corresponding first locking threaded through holes are provided between the outer mounting body 2011 and the outer adjusting plate 2012. A number of first locking threaded blind holes corresponding to the first locking threaded through holes are provided on the outer fastening mounting plate 2013. A number of first locking threaded blind holes corresponding to the first locking threaded through holes are provided on the side of the outer mounting body 2011 away from the chimney outer tube 100. A first locking nut 2015 corresponds to the through hole, and a first locking screw 2016 is coaxially connected in the first locking nut 2015, the first locking threaded through hole, and the first locking threaded blind hole. The outer mounting body 2011, the outer adjustment plate 2012, and the outer fastening mounting plate 2013 are connected and fixed as a whole through the first locking screw 2016; a plurality of first sliding blocks 2017 are provided on the side of the outer fastening plate 2014 away from the chimney outer tube 100, and a plurality of first sliding grooves corresponding to the first sliding blocks 2017 are provided on the outer fastening plate 2014. The first sliding groove is slidably inserted in the first sliding groove, and the side of the outer fastening plate 2014 away from the outer fastening mounting plate 2013 is an inner concave arc surface adapted to the outer surface of the chimney outer tube 100, and the cross-sectional shapes of the first sliding groove and the first sliding block 2017 are both dovetail-shaped.

[0038] Specifically, the distance between the outer fastening plate 2014 and the outer side surface of the chimney outer tube 100 is adjusted by the outer adjusting plate 2012, so as to improve the adaptability to chimney outer tubes 100 of different sizes, thereby improving the modularization and standardization of the installation structure of the hydraulic lifting device. The outer adjusting plate 2012 is a plate-like structure, and the thickness can be determined according to the size of the chimney outer tube 100. At the same time, the weight reduction of the installation structure of the hydraulic lifting device can be achieved by opening a weight reduction hole on the outer adjusting plate 2012, changing the material of the outer adjusting plate 2012, etc.

[0039] Through the adaptation of the concave arc surface of the outer fastening plate 2014 and the chimney outer tube 100, the outer mounting unit 201 can be closely fitted with the chimney outer tube 100, effectively improving the contact adaptability between the outer mounting unit 201 and the chimney outer tube 100, and enhancing the stability of the installation structure of the hydraulic lifting device after installation. It should be noted that the outer fastening plate 2014 can be designed according to different chimney outer tubes 100, and the other components are universal components, so as to effectively improve the standardization and modularization of each component, improve the utilization rate, and reduce the waste of steel.

[0040] By rotating the first locking screw 2016, the outer fastening plate 2014 is pushed inward to squeeze the outer wall of the chimney outer tube 100, thereby improving the contact ability between the outer fastening plate 2014 and the outer wall of the chimney outer tube 100, thereby enhancing the overall stability of the installation structure. It should be noted that the thread rotation directions of the locking thread through hole and the locking thread blind hole are opposite, that is, the thread rotation directions of the two ends of the first locking screw 2016 are opposite. Furthermore, a prism-shaped protrusion (e.g., a hexagonal prism, a quadrangular prism, etc.) can be provided at one end of the first locking screw 2016 extending out of the first locking nut 2015 to rotate the first locking screw 2016.

[0041] The outer fastening plate 2014 is detachably connected to the outer fastening mounting plate 2013 by cooperating with the first sliding groove through the first sliding block 2017; through the effective cooperation of the first sliding groove and the first sliding block 2016, the outer fastening plate 2014 and the outer fastening mounting plate 2013 can be quickly disassembled and assembled. The cross-sectional shapes of the first sliding groove and the first sliding block 2017 are both dovetail-shaped, which is convenient for limiting the outer fastening plate 2014 in the vertical direction after assembly, thereby improving the stability and reliability of the outer fastening plate 2014 after being connected to the outer fastening mounting plate 2013.

[0042] The inner mounting unit 202 includes, from the inside to the outside, an inner mounting body 2021, an inner adjusting plate 2022, an inner fastening mounting plate 2023, and an inner fastening plate 2024. The inner mounting body 2021 is an inverted L-shaped plate structure. The inner adjusting plate 2022 and the inner fastening mounting plate 2023 are detachably fixed on the angled side wall of the inner mounting body 2021. The inner fastening plate 2024 is slidably plugged into the inner fastening mounting plate 2023 on the side close to the chimney outer tube 100. A number of corresponding second locking threaded through holes are provided between the inner mounting body 2021 and the inner adjusting plate 2022. A number of second locking threaded blind holes corresponding to the second locking threaded through holes are provided on the inner fastening mounting plate 2023. A number of second locking threaded blind holes corresponding to the second locking threaded through holes are provided on the inner fastening mounting plate 2023. A number of second locking threaded blind holes corresponding to the second locking threaded through holes are provided on the side of the inner mounting body 2021 away from the chimney outer tube 100. A second locking nut 2025 corresponds to the through hole, and a second locking screw 2026 is coaxially connected in the second locking nut 2025, the second locking threaded through hole, and the second locking threaded blind hole. The inner mounting body 2021, the inner adjusting plate 2022, and the inner fastening mounting plate 2023 are connected and fixed as a whole through the second locking screw 2026; a plurality of second sliding blocks 2027 are provided on the side of the inner fastening plate 2024 away from the chimney outer tube 100, and a plurality of second sliding grooves corresponding to the second sliding blocks 2027 are provided on the inner fastening plate 2024. The second sliding block 2027 is slidably inserted in the second sliding groove, and the side of the inner fastening plate 2024 away from the inner fastening mounting plate 2023 is an outer convex arc surface adapted to the inner surface of the chimney outer tube 100, and the cross-sectional shapes of the second sliding groove and the second sliding block 2027 are both dovetail-shaped.

[0043] Specifically, the structure of the inner installation unit 202 is similar to that of the outer installation unit 201, except that the inner fastening plate 2024 is adapted to the inner surface of the chimney outer tube 100 with an outer convex arc surface. Based on the above description, it can be seen that the design of the outer convex arc surface can be processed according to different chimney outer tubes 100, which is conducive to improving the modularization and standardization of the inner installation unit 202. It should be noted that the installation of the inner installation unit 202 is similar to that of the outer installation unit 201, and will not be repeated here.

[0044] The fixing mechanism includes a fixing nut 400 and a connecting rod 401. The adjusting unit 203 is a plate-like structure. The horizontal plate of the outer mounting body 2011, the horizontal plate of the inner mounting body 2021, and the adjusting unit 203 are provided with a number of corresponding connecting through holes. The connecting rod 401 passes through the connecting through holes, and the two ends are locked by threaded connection fixing nuts 400.

[0045] Specifically, both ends of the connecting rod 401 are respectively provided with external threads so as to be threadedly connected with the fixing nut 400. After the outer mounting unit 201, the inner mounting unit 202 and the adjustment unit 203 form a gate-shaped structure and are located on the top of the chimney outer tube 100, by tightening the fixing nuts 400 on the outer mounting unit 201 and the inner mounting unit 202, the outer mounting unit 201 and the inner mounting unit 202 can be clamped to the chimney outer tube 100, ensuring that the hydraulic lifting device will not be displaced or shaken after installation, thereby realizing stable lifting of the single steel inner tube of the chimney.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An installation structure for a chimney single steel inner cylinder hydraulic lifting device, characterized in that: It comprises a modular detachable base (200) and a mounting platform (300), wherein the modular detachable base (200) is mounted on the top of a chimney outer tube (100), the mounting platform (300) is fixedly mounted on the modular detachable base (200), and the hydraulic lifting device is mounted on the mounting platform (300); The modular detachable base (200) comprises an outer mounting unit (201), an inner mounting unit (202), and an adjustment unit (203); the adjustment unit (203) is arranged at the top between the opposite surfaces of the outer mounting unit (201) and the inner mounting unit (202), and together form a door-shaped structure and is sleeved on the top of the chimney outer tube (100); a fixing mechanism is arranged between the outer mounting unit (201), the inner mounting unit (202), and the adjustment unit (203); the lower surface of the adjustment unit (203) abuts against the top of the chimney outer tube (100); the outer mounting unit (201) abuts against the outer surface of the chimney outer tube (100); the inner mounting unit (202) abuts against the inner surface of the chimney outer tube (100); and the mounting platform (300) is mounted on the upper surface of the inner mounting unit (202).

2. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 1 is characterized in that: The outer mounting unit (201) comprises, from the outside to the inside, an outer mounting body (2011), an outer adjusting plate (2012), an outer fastening mounting plate (2013), and an outer fastening plate (2014); the outer mounting body (2011) is an inverted L-shaped plate structure; the outer adjusting plate (2012) and the outer fastening mounting plate (2013) are detachably fixed on the angled side wall of the outer mounting body (2011); and the outer fastening plate (2014) is slidably plugged into the outer fastening mounting plate (2013) on a side close to the chimney outer tube (100).

3. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 2 is characterized in that: A plurality of corresponding first locking threaded through holes are provided between the outer mounting body (2011) and the outer adjusting plate (2012); a plurality of first locking threaded blind holes corresponding to the first locking threaded through holes are provided on the outer fastening mounting plate (2013); a plurality of first locking nuts (2015) corresponding to the first locking threaded through holes are provided on the side of the outer mounting body (2011) away from the chimney outer tube (100); a first locking screw (2016) is coaxially connected within the first locking nut (2015), the first locking threaded through hole and the first locking threaded blind hole; the outer mounting body (2011), the outer adjusting plate (2012) and the outer fastening mounting plate (2013) are connected and fixed as a whole via the first locking screw (2016).

4. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 2 is characterized in that: A plurality of first sliding blocks (2017) are provided on the side of the outer fastening plate (2014) away from the chimney outer tube (100); a plurality of first sliding grooves corresponding to the first sliding blocks (2017) are provided on the outer fastening plate (2014); the first sliding blocks (2017) are slidably inserted in the first sliding grooves; a side of the outer fastening plate (2014) away from the outer fastening mounting plate (2013) is an inner concave arc surface adapted to the outer surface of the chimney outer tube (100); and the cross-sectional shapes of the first sliding grooves and the first sliding blocks (2017) are both dovetail-shaped.

5. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 2 is characterized in that: The inner installation unit (202) comprises, from the inside to the outside, an inner installation body (2021), an inner adjustment plate (2022), an inner fastening installation plate (2023), and an inner fastening plate (2024); the inner installation body (2021) is an inverted L-shaped plate structure; the inner adjustment plate (2022) and the inner fastening installation plate (2023) are detachably fixed on the angled side wall of the inner installation body (2021); and the inner fastening plate (2024) is slidably plugged into the inner fastening installation plate (2023) on the side close to the chimney outer tube (100).

6. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 5 is characterized in that: A plurality of corresponding second locking threaded through holes are provided between the inner mounting body (2021) and the inner adjusting plate (2022); a plurality of second locking threaded blind holes corresponding to the second locking threaded through holes are provided on the inner fastening mounting plate (2023); a plurality of second locking nuts (2025) corresponding to the second locking threaded through holes are provided on the side of the inner mounting body (2021) away from the chimney outer tube (100); a second locking screw (2026) is coaxially connected within the second locking nut (2025), the second locking threaded through hole and the second locking threaded blind hole; the inner mounting body (2021), the inner adjusting plate (2022) and the inner fastening mounting plate (2023) are connected and fixed as a whole via the second locking screw (2026).

7. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 5 is characterized in that: A plurality of second sliding blocks (2027) are provided on the side of the inner fastening plate (2024) away from the chimney outer tube (100); a plurality of second sliding grooves corresponding to the second sliding blocks (2027) are provided on the inner fastening plate (2024); the second sliding blocks (2027) are slidably inserted in the second sliding grooves; a side of the inner fastening plate (2024) away from the inner fastening mounting plate (2023) is an outer convex arc surface adapted to the inner surface of the chimney outer tube (100); and the cross-sectional shapes of the second sliding grooves and the second sliding blocks (2027) are both dovetail-shaped.

8. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 5 is characterized in that: The fixing mechanism comprises a fixing nut (400) and a connecting rod (401); the adjusting unit (203) is a plate-shaped structure; a horizontal plate of the outer mounting body (2011), a horizontal plate of the inner mounting body (2021), and the adjusting unit (203) are provided with a plurality of corresponding connecting through holes; the connecting rod (401) passes through the connecting through holes, and both ends are locked by threaded connection with the fixing nuts (400).

9. The installation structure of the chimney single steel inner tube hydraulic lifting device according to claim 1 is characterized in that: The installation platform (300) is a box-type structural beam, and a plurality of triangular reinforcement plates (301) are provided between the installation platform (300) and the angled side wall of the inner installation unit (202).

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