Steel ring butt welding fixture and steel lining sealing layer construction device

Abstract

The steel ring butt welding fixture and steel lining sealing layer construction device provided in this application include a support frame and a movable base frame. The support frame is configured to be movably fitted onto the needle beam. The movable base frame is connected to the support frame and is used to drive the support frame to move laterally relative to the needle beam. The movable base frame includes a roller assembly, a lifting cylinder, a lifting cylinder seat, a base frame crossbeam, a lateral movement cylinder, a lateral movement frame, and a longitudinal connecting beam. The roller assembly is fixedly connected to the base frame crossbeam, and the lifting cylinder seat is slidably connected to the flange of the base frame crossbeam. One end of the lifting cylinder is fixedly connected to the lifting cylinder seat, and the other end is connected to the support frame. The lateral movement frame is connected to the lifting cylinder seat, and one end of the lateral movement cylinder is connected to the lateral movement frame, and the other end is connected to the base frame crossbeam. The two base frame crossbeams are connected by the longitudinal connecting beam. A top support frame and a side support frame are used to jointly support the steel ring. This fixture is beneficial for improving the butt welding accuracy and efficiency of the steel rings.

Description

Technical Field

[0001] This invention relates to the field of construction technology for underground gas storage chambers, and in particular to a steel ring butt welding fixture and a steel lining sealing layer construction device. Background Technology

[0002] In existing compressed air energy storage projects, the construction of the steel lining sealing layer typically follows a sequence of steel tile assembly, pairing, and secondary lining pouring. After pairing, the steel rings need to be moved to the corresponding end of the steel ring in the secondary lining pouring section for butt welding. Existing construction equipment suffers from low steel ring movement efficiency and requires reliable support during movement; unreliable support poses a risk of tipping over. Furthermore, the butt welding process is time-consuming, difficult to guarantee in terms of accuracy, and inefficient. Summary of the Invention

[0003] The purpose of this invention is to provide a steel ring butt welding fixture and a steel lining sealing layer construction device, which is beneficial to improve the steel ring butt welding efficiency and accuracy, thereby improving construction efficiency and shortening the construction cycle.

[0004] In a first aspect, the present invention provides a steel ring butt welding fixture, comprising: Support frame; the support frame is configured to be movably fitted onto the needle beam; A movable base frame; the movable base frame is connected to the support frame and is used to drive the support frame to move laterally relative to the needle beam; The movable base frame includes a roller assembly, a lifting cylinder, a lifting cylinder seat, a base frame crossbeam, a transverse cylinder, a transverse frame, and a longitudinal connecting beam; The roller assembly is fixedly connected to the base frame crossbeam, and the lifting cylinder seat is slidably connected to the wing plate of the base frame crossbeam; one end of the lifting cylinder is fixedly connected to the lifting cylinder seat, and the other end is connected to the support frame; the transverse frame is connected to the lifting cylinder seat, and one end of the transverse cylinder is connected to the transverse frame, and the other end is connected to the base frame crossbeam; the two base frame crossbeams are connected by the longitudinal connecting beam. The top support frame is connected to the top of the support frame, and the side support frame is connected to the side of the support frame; the top support frame and the side support frame are used to jointly support the steel ring.

[0005] In an optional embodiment, the support frame includes vertical beams, main crossbeams, reinforcing crossbeams, diagonal beams, and bottom connecting rods; The two ends of the main crossbeam are respectively connected to the two vertical beams in the first direction, and the two ends of the reinforcing crossbeam are respectively connected to the two vertical beams in the second direction, wherein the first direction and the second direction are perpendicular. The two ends of the inclined beam are respectively connected to the two vertical beams in the second direction, and the inclined beam and the vertical beams are connected at an angle; the bottom connecting rod is arranged opposite to the main crossbeam, and the two ends of the bottom connecting rod are respectively connected to the two vertical beams in the first direction.

[0006] In an optional embodiment, the bottom connecting rod includes a first segment and a second segment, the first segment and the second segment are connected by a lead screw, and the ends of the first segment and the second segment that are far apart from each other are respectively hinged to the vertical beam.

[0007] In an optional embodiment, winches are respectively provided on the main crossbeam and the vertical beam, and the winches are used to move the steel ring.

[0008] In an optional embodiment, a first support device is provided on the inner side of the vertical beam. The first support device includes a base, an adjusting member, and a roller. The base is connected to the vertical beam. One end of the adjusting member is connected to the base, and the other end is connected to the roller. The adjusting member is used to adjust the distance between the roller and the base.

[0009] In an optional embodiment, a second support device is provided on the outer side of the vertical beam. The second support device includes a side support outer sleeve, a side support inner sleeve, and a side support cylinder. The side support outer sleeve is connected to the vertical beam, and one end of the side support cylinder is connected to the side support outer sleeve, while the other end is connected to the side support inner sleeve.

[0010] In an optional embodiment, the top support frame and the side support frame have the same structure; the top support frame includes a support body, a longitudinal connecting frame, reinforcing diagonal braces, and a support beam; The main body of the bracket is connected to the support frame, and the two ends of the longitudinal connecting frame are respectively connected to the two main bodies of the bracket in the second direction. The support beam is connected to the side of the main body of the bracket away from the support frame, and the support beam is provided with ball bearings. One end of the reinforcing diagonal brace is connected to the main body of the support frame, and the other end is connected to the support beam.

[0011] In an optional embodiment, the support beam is provided with a pulley assembly, which is connected to the winch via a wire rope.

[0012] In an optional embodiment, walkways are provided on the top support frame and the side support frame, respectively.

[0013] Secondly, the present invention provides a steel lining sealing layer construction device, including a needle beam and a steel ring butt fitting as described in any of the foregoing embodiments, wherein the steel ring butt fitting is movably fitted onto the needle beam.

[0014] The steel ring butt welding fixture and steel lining sealing layer construction device provided by this invention have the following advantages: The top support frame and side support frames are connected to the support frame, and together they provide reliable support for the steel ring, preventing the risk of tipping over during movement. The support frame is movably fitted onto the needle beam. Moving the support frame along the needle beam moves the steel ring along the needle beam, improving the efficiency of ring movement. Furthermore, the needle beam shared by the needle beam for the secondary lining casting support ensures the steel ring maintains a relatively stable center during movement, roughly coinciding with the center of the needle beam. Thus, the assembled steel ring is moved to the steel ring butt welding fixture. After the secondary lining casting end mold is demolded, the steel ring is moved along the needle beam for circumferential seam butt welding, with support provided during the seam welding process. This improves the overall construction efficiency, ensures safety during steel ring movement, shortens the seam butt adjustment time, and contributes to improved butt welding efficiency and accuracy. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram illustrating the application scenario of the steel ring butt welding fixture provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the steel ring butt welding fixture provided in an embodiment of the present invention. Figure 3 A schematic diagram of the steel ring butt joint tooling provided in an embodiment of the present invention from another perspective; Figure 4 This is a schematic diagram of the movable base frame of the steel ring butt welding fixture provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the supporting frame of the steel ring butt welding fixture provided in an embodiment of the present invention; Figure 6 A schematic diagram of the connection structure between the support frame and the second support device of the steel ring butt welding fixture provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the top support frame of the steel ring butt welding fixture provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the installation scenario of the winch and pulley assembly of the steel ring butt welding fixture provided in an embodiment of the present invention; Figure 9This is a schematic diagram of the roller slip assembly of the steel ring docking fixture provided in an embodiment of the present invention.

[0017] Icons: 1-Support frame; 2-Moving base frame; 3-Top support frame; 4-Side support frame; 101-Needle beam; 2.1-Roller assembly; 2.2-Lifting cylinder; 2.3-Lifting cylinder seat; 2.4-Base frame crossbeam; 2.5-Horizontal movement cylinder; 2.6-Horizontal movement frame; 2.7-Longitudinal connecting beam; 1.2-Main crossbeam; 1.1-Vertical beam; 1.3-Reinforcing crossbeam; 1.4-Diagonal beam; 1.5-Bottom connecting rod; 1.6-Wind machine; 1.7-First support device; 1.8-Side support outer sleeve; 1.9-Side support cylinder; 1.10-Side support inner sleeve; 151-First section; 152-Second section; 3.3-Support body; 3.4-Longitudinal connecting frame; 3.5-Reinforcing diagonal brace; 3.2-Support beam; 3.1-Ball bearing; 37-Pulley assembly; 5-Walkway. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Please combine Figures 1 to 3 This invention provides a steel ring butt welding fixture and a steel lining sealing layer construction device. The steel ring butt welding fixture is arranged on an integrated steel lining sealing layer construction device. The steel ring butt welding fixture receives the assembled steel ring, which moves on the needle beam 101 to the end of the secondary lining casting steel ring. Because it shares a needle beam 101 with the secondary lining casting steel ring, preliminary positioning is completed before the circumferential joint is butt welded, resulting in shorter overall adjustment time and improved butt welding efficiency and accuracy. Furthermore, the steel ring movement and circumferential joint welding are effectively supported throughout the process, thus enhancing stability and safety. This steel ring butt welding fixture enables simultaneous processes such as secondary lining equalization, steel ring circumferential joint welding, and steel tile assembly, improving construction efficiency.

[0026] This invention provides a steel ring butt welding fixture, including a support frame 1, a movable base frame 2, a top support frame 3, and a side support frame 4. The movable base frame 2 is connected to the support frame 1 and is used to drive the support frame 1 to move laterally relative to the needle beam 101, thereby adjusting the relative position of the support frame 1 and the needle beam 101, and thus adjusting the position of the steel ring on the support frame 1. The support frame 1 is configured to be movably fitted onto the needle beam 101 and can move along the axial direction of the needle beam 101 to realize the movement of the steel ring along the axial direction of the needle beam 101. The top support frame 3 is connected to the top of the support frame 1, and the side support frame 4 is connected to the side of the support frame 1; the top support frame 3 and the side support frame 4 are used to jointly support the steel ring.

[0027] The movable base frame 2, the top support frame 3, and the side support frame 4 are all fixed to the support frame 1 with bolts to achieve a reliable connection.

[0028] Please combine Figure 4 The movable base frame 2 includes a roller assembly 2.1, a lifting cylinder 2.2, a lifting cylinder seat 2.3, a base frame crossbeam 2.4, a transverse movement cylinder 2.5, a transverse movement frame 2.6, and a longitudinal connecting beam 2.7. The roller assembly 2.1 is fixedly connected to the base frame crossbeam 2.4, and the lifting cylinder seat 2.3 is slidably connected to the flange of the base frame crossbeam 2.4; one end of the lifting cylinder 2.2 is fixedly connected to the lifting cylinder seat 2.3, and the other end is connected to the support frame 1; the transverse movement frame 2.6 is connected to the lifting cylinder seat 2.3, and one end of the transverse movement cylinder 2.5 is connected to the transverse movement frame 2.6, and the other end is connected to the base frame crossbeam 2.4; the two base frame crossbeams 2.4 are connected by the longitudinal connecting beam 2.7.

[0029] In this embodiment, the roller assembly 2.1 is fixedly connected to the base frame crossbeam 2.4 by bolts. The lifting cylinder seat 2.3 is fitted onto the flange of the base frame crossbeam 2.4, allowing it to move laterally within a certain range along the base frame crossbeam 2.4. One end of the lifting cylinder 2.2 is fixed to the lifting cylinder seat 2.3, and the other end is bolted to the main crossbeam 1.2 of the support frame 1, enabling the lifting and lowering of the support frame 1. The transverse frame 2.6 is connected to the lifting cylinder seat 2.3 by a pin. One end of the transverse cylinder 2.5 is connected to the transverse frame 2.6, and the other end is connected to the base frame crossbeam 2.4, allowing the transverse frame 2.6 and the lifting cylinder seat 2.3 to move relative to the base frame crossbeam 2.4 as a whole. Since the lifting cylinder seat 2.3 is connected to the support frame 1 through the lifting cylinder 2.2, the left and right movement of the support frame 1 relative to the pin beam 101, i.e., transverse movement, can be achieved by controlling the extension and retraction of the transverse cylinder 2.5. The base frame crossbeam 2.4 extends laterally. Roller assembly 2.1 is used to move in conjunction with the track on needle beam 101.

[0030] Please combine Figures 5 to 6 Optionally, the support frame 1 includes a vertical beam 1.1, a main crossbeam 1.2, a reinforcing crossbeam 1.3, an inclined beam 1.4, a bottom connecting rod 1.5, a winch 1.6, a first support device 1.7, a side support outer sleeve 1.8, a side support cylinder 1.9, and a side support inner sleeve 1.10.

[0031] The vertical beam 1.1, main horizontal beam 1.2, reinforcing horizontal beam 1.3, and diagonal beam 1.4 are fixed together by bolts to form the main structure of the support frame 1. Specifically, the two ends of the main horizontal beam 1.2 are connected to the two vertical beams 1.1 in the first direction, and the two ends of the reinforcing horizontal beam 1.3 are connected to the two vertical beams 1.1 in the second direction, with the first and second directions perpendicular to each other. The main horizontal beam 1.2 extends along the first direction, and the reinforcing horizontal beam 1.3 extends along the second direction. The two ends of the diagonal beam 1.4 are connected to the two vertical beams 1.1 in the second direction, and the diagonal beam 1.4 is connected to the vertical beams 1.1 at an angle to improve the structural strength and stability. The bottom connecting rod 1.5 is positioned opposite to the main horizontal beam 1.2, and the two ends of the bottom connecting rod 1.5 are connected to the two vertical beams 1.1 in the first direction. Optionally, the bottom connecting rod 1.5 includes a first segment 151 and a second segment 152, which are connected by a screw. The ends of the first segment 151 and the second segment 152 that are far apart from each other are respectively hinged to the vertical beam 1.1.

[0032] In this embodiment, the ends of the first segment 151 and the second segment 152 that are far apart from each other are respectively hinged to the vertical beam 1.1 by pins. After the steel ring butt joint fixture is installed on the needle beam 101, the bottom connecting rod 1.5 is installed and the screw is tightened, so that the entire support frame 1 forms a stable structure and can prevent the steel ring from tipping over.

[0033] Optionally, a winch 1.6 is provided on both the main crossbeam 1.2 and the vertical beam 1.1, and the winch 1.6 is used to move the steel ring. A first support device 1.7 is provided on the inner side of the vertical beam 1.1. The first support device 1.7 includes a base, an adjusting component, and a roller. The base is connected to the vertical beam 1.1, one end of the adjusting component is connected to the base, and the other end is connected to the roller. The adjusting component is used to adjust the distance between the roller and the base. A second support device is provided on the outer side of the vertical beam 1.1. The second support device includes a side support outer sleeve 1.8, a side support inner sleeve 1.10, and a side support cylinder 1.9. The side support outer sleeve 1.8 is connected to the vertical beam 1.1, and one end of the side support cylinder 1.9 is connected to the side support outer sleeve 1.8, and the other end is connected to the side support inner sleeve 1.10.

[0034] In this embodiment, the adjusting component is a lead screw. The rollers on the first support device 1.7 are connected to the base via the lead screw. By adjusting the length of the lead screw, the rollers can abut against the wing plate of the needle beam 101 structure, ensuring the stability of the docking fixture during movement. The side support outer sleeve 1.8 is fixed to the vertical beam 1.1, and the side support inner sleeve 1.10 and the side support outer sleeve 1.8 are connected via a side support cylinder 1.9. The side support inner sleeve 1.10 is bolted to the side support frame 4.

[0035] Please combine Figure 7Optionally, the top support frame 3 includes a support body 3.3, a longitudinal connecting frame 3.4, a reinforcing diagonal brace 3.5, and a support beam 3.2. The support body 3.3 is connected to the support frame 1. The two ends of the longitudinal connecting frame 3.4 are respectively connected to the two support bodies 3.3 in the second direction. The support beam 3.2 is connected to the side of the support body 3.3 away from the support frame 1, and the support beam 3.2 is provided with ball bearings 3.1. One end of the reinforcing diagonal brace 3.5 is connected to the support body 3.3, and the other end is connected to the support beam 3.2.

[0036] In this embodiment, the ball bearing 3.1 is a spherical ball bearing. The spherical ball bearings are evenly fixed on the support beam 3.2. The support beam 3.2 is fixed to the bracket body 3.3 by bolts, the longitudinal connecting frame 3.4 is fixedly connected to the bracket body 3.3, and the reinforcing diagonal brace 3.5 is connected to the support beam 3.2 and the bracket body 3.3 by pins.

[0037] It should be noted that the top support frame 3 and the side support frame 4 have the same structure, only the installation direction is different, so the structure of the side support frame 4 will not be described in detail here.

[0038] Please combine Figure 8 and Figure 9 Optionally, a pulley assembly 37 is provided on the support beam 3.2, and the pulley assembly 37 is connected to the winch 1.6 via a wire rope. One end of the wire rope is wound around the winch 1.6, and the other end is connected to the steel ring after passing through the pulley assembly 37, used to pull the steel ring to move it onto the steel ring docking fixture. In this embodiment, multiple winches 1.6 are provided, which can provide sufficient traction force on the steel ring. The pulley assembly 37 is located in the middle of the intermediate support beam 3.2. Multiple winches 1.6 are respectively installed on the main crossbeam 1.2 and the vertical beam 1.1. Since the installation directions of the winches 1.6 are different, the pulley assembly 37 can be used to make the pulling force of multiple winches 1.6 on the steel ring in the same direction. That is, the pulley assembly 37 is used to change the direction of the pulling force of the winches 1.6 on the steel ring. Each winch applies tension to the steel ring at a different location, and these tension points are evenly distributed along the circumferential direction of the steel ring, resulting in uniform force distribution, smoother movement, and higher efficiency.

[0039] Optionally, walkways 5 are provided on the top support frame 3 and the side support frame 4 respectively, to facilitate manual maintenance, repair and manual adjustment of the walkways.

[0040] This invention also provides a steel lining sealing layer construction device, including a needle beam 101 and a steel ring butt welding fixture as described in any of the foregoing embodiments. The steel ring butt welding fixture is movably fitted onto the needle beam 101. This steel ring butt welding fixture is used to receive the assembled steel ring. After the secondary lining casting end mold is demolded, the steel ring can be moved along the needle beam 101 for circumferential seam butt welding, and the steel ring is supported during circumferential seam welding. Because the steel rings cast with the secondary lining share a single needle beam 101, initial positioning is completed before circumferential seam butt welding, resulting in shorter overall adjustment time and improved butt welding efficiency and accuracy. This steel ring butt welding fixture helps improve the overall construction efficiency, ensures safety during steel ring movement, shortens circumferential seam butt welding adjustment time, and improves butt welding efficiency and accuracy.

[0041] The steel ring butt welding fixture and steel lining sealing layer construction device provided in this embodiment of the invention have the following advantages: The top support frame 3 and the side support frame 4 are connected to the support frame 1 respectively. The top support frame 3 and the side support frame 4 can jointly support the steel ring, providing reliable support and avoiding the risk of tipping over during the movement of the steel ring. The bottom connecting rod 1.5 further reduces the risk of the steel ring tipping over. The support frame 1 is movably fitted onto the needle beam 101. The movement of the support frame 1 along the needle beam 101 can drive the steel ring to move along the needle beam 101, improving the movement efficiency of the steel ring. Furthermore, the needle beam 101 and the needle beam 101 supporting the secondary lining casting share the same needle beam 101. During the movement of the steel ring, its center remains basically unchanged and roughly coincides with the center of the needle beam 101. In this way, the assembled steel ring is moved to the steel ring butt welding fixture. After the secondary lining casting end mold is demolded, the steel ring is moved along the needle beam 101 to perform circumferential seam butt welding, and support is provided during circumferential seam welding. Because the needle beam 101 used in the steel ring butt joint tooling shares the same needle beam 101 as the steel ring cast in the secondary lining, the initial positioning of the steel ring is completed before the ring joint is butt jointed, and the overall butt joint adjustment time is shorter, which is conducive to improving the butt joint efficiency and accuracy, thereby improving the construction efficiency of the entire process.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of the present invention.

Claims

1. A steel ring butt joining tool characterized by, include: Support frame (1); the support frame (1) is configured to be movably fitted onto the needle beam (101); Mobile base frame (2); the mobile base frame (2) is connected to the support frame (1) and is used to drive the support frame (1) to move laterally relative to the needle beam (101); The movable base frame (2) includes a roller assembly (2.1), a lifting cylinder (2.2), a lifting cylinder seat (2.3), a base frame crossbeam (2.4), a transverse cylinder (2.5), a transverse frame (2.6), and a longitudinal connecting beam (2.7). The roller assembly (2.1) is fixedly connected to the base frame crossbeam (2.4), and the lifting cylinder seat (2.3) is slidably connected to the wing plate of the base frame crossbeam (2.4); one end of the lifting cylinder (2.2) is fixedly connected to the lifting cylinder seat (2.3), and the other end is connected to the support frame (1); the transverse frame (2.6) is connected to the lifting cylinder seat (2.3), one end of the transverse cylinder (2.5) is connected to the transverse frame (2.6), and the other end is connected to the base frame crossbeam (2.4); the two base frame crossbeams (2.4) are connected by the longitudinal connecting beam (2.7); The top support frame (3) is connected to the top of the support frame (1), and the side support frame (4) is connected to the side of the support frame (1); the top support frame (3) and the side support frame (4) are used to jointly support the steel ring.

2. The steel ring butt joining tool according to claim 1, characterized by The support frame (1) includes a vertical beam (1.1), a main horizontal beam (1.2), a reinforcing horizontal beam (1.3), a diagonal beam (1.4), and a bottom connecting rod (1.5). The two ends of the main crossbeam (1.2) are respectively connected to the two vertical beams (1.1) in the first direction, and the two ends of the reinforcing crossbeam (1.3) are respectively connected to the two vertical beams (1.1) in the second direction, wherein the first direction and the second direction are perpendicular. The two ends of the inclined beam (1.4) are respectively connected to the two vertical beams (1.1) in the second direction, and the inclined beam (1.4) and the vertical beams (1.1) are connected at an angle; the bottom connecting rod (1.5) is arranged opposite to the main crossbeam (1.2), and the two ends of the bottom connecting rod (1.5) are respectively connected to the two vertical beams (1.1) in the first direction.

3. The steel ring butt joining tool according to claim 2, wherein The bottom connecting rod (1.5) includes a first segment (151) and a second segment (152), which are connected by a screw. The ends of the first segment (151) and the second segment (152) that are far apart from each other are respectively hinged to the vertical beam (1.1).

4. The steel ring butt joining tool according to claim 2, wherein The main crossbeam (1.2) and the vertical beam (1.1) are respectively equipped with winches (1.6), which are used to move the steel ring.

5. The steel ring butt welding fixture according to claim 2, characterized in that, The inner side of the vertical beam (1.1) is provided with a first support device (1.7). The first support device (1.7) includes a base, an adjusting member and a roller. The base is connected to the vertical beam (1.1). One end of the adjusting member is connected to the base and the other end is connected to the roller. The adjusting member is used to adjust the distance between the roller and the base.

6. The steel ring butt welding fixture according to claim 2, characterized in that, The outer side of the vertical beam (1.1) is provided with a second support device, which includes a side support outer sleeve (1.8), a side support inner sleeve (1.10) and a side support cylinder (1.9). The side support outer sleeve (1.8) is connected to the vertical beam (1.1), and one end of the side support cylinder (1.9) is connected to the side support outer sleeve (1.8) and the other end is connected to the side support inner sleeve (1.10).

7. The steel ring butt welding fixture according to claim 4, characterized in that, The top support frame (3) and the side support frame (4) have the same structure; the top support frame (3) includes a support body (3.3), a longitudinal connecting frame (3.4), a reinforcing diagonal brace (3.5) and a support beam (3.2). The support body (3.3) is connected to the support frame (1), and the two ends of the longitudinal connecting frame (3.4) are respectively connected to the two support bodies (3.3) in the second direction. The support beam (3.2) is connected to the side of the support body (3.3) away from the support frame (1), and the support beam (3.2) is provided with ball bearings. One end of the reinforcing diagonal brace (3.5) is connected to the main body of the support (3.3), and the other end is connected to the support beam (3.2).

8. The steel ring butt welding fixture according to claim 7, characterized in that, The support beam (3.2) is provided with a pulley assembly, which is connected to the winch (1.6) by a wire rope.

9. The steel ring butt welding fixture according to any one of claims 1-8, characterized in that, The top support frame (3) and the side support frame (4) are respectively provided with walkways.

10. A steel lining sealing layer construction device, characterized in that, It includes a needle beam (101) and a steel ring butt fitting as described in any one of claims 1-9, wherein the steel ring butt fitting is movably fitted onto the needle beam (101).

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