An assembly jig for large-span hyperboloid reticulated shell steel structure components

By designing a modular assembly frame and using an adjustment mechanism and support components to adjust the track spacing and the fit of the support frame to the steel structure, the accuracy and efficiency problems of traditional assembly frames in the construction of large-span hyperboloid reticulated steel structures are solved, achieving an efficient and stable assembly process and the reuse of materials.

CN224579092UActive Publication Date: 2026-07-31NO 4 ENG CO LTD OF CHINA RAILWAY NO 9 GRP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NO 4 ENG CO LTD OF CHINA RAILWAY NO 9 GRP
Filing Date
2026-05-19
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional prefabricated frame structures suffer from problems such as difficulty in controlling precision, low construction efficiency, and low material utilization in the construction of large-span hyperboloid reticulated steel structures, and do not meet the requirements of green construction.

Method used

An assembly jig comprising an adjustment mechanism, support components, and modular tracks was designed. The track spacing is adjusted by a double-headed screw and a drive motor, and the support and positioning of steel structural components of different specifications are achieved by combining hydraulic cylinders and support frames, thereby improving adaptability and stability.

Benefits of technology

It improves the adaptability and construction efficiency of the assembly frame, reduces material waste, enhances structural stability, and meets the requirements of green construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of steel structure assembly technology, and particularly to an assembly jig for large-span hyperboloid reticulated shell steel structure components. In this jig, the distance between two tracks is adjusted by rotating a double-ended screw. This, in turn, adjusts the lateral distance between the support components on the two tracks. Furthermore, by sliding the support components along the tracks, the longitudinal distance between the support components on each track can be adjusted. This allows the jig to be suitable for assembling hyperboloid reticulated shell steel structure components of different sizes and specifications, greatly improving its adaptability. Moreover, the jig is composed of modular structures such as tracks, an adjustment mechanism, and support components, which not only simplifies and facilitates installation and assembly, improving construction efficiency, but also allows for reuse, increasing material utilization.
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Description

Technical Field

[0001] This application relates to the field of steel structure assembly technology, and in particular to an assembly jig for large-span hyperboloid reticulated shell steel structure components. Background Technology

[0002] As the core system for the construction of grid shell structures, the prefabricated frame directly determines the positioning accuracy of components and the construction efficiency. However, traditional prefabricated frame construction has many problems: First, accuracy control is difficult, relying on manual measurement and positioning. Due to the large number of nodes and complex shapes of the grid shell, errors are prone to occur, resulting in substandard installation accuracy and affecting the overall stress. Second, construction efficiency is low, as it is mostly temporary and needs to be carried out simultaneously with component installation. The coordination between various processes is difficult, which greatly occupies the construction period and restricts the project progress. Third, there is serious material waste, as most materials are used only once, resulting in low material utilization and failing to meet the requirements of green construction.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this application is to provide an assembly jig for large-span hyperboloid reticulated steel structure components to solve or alleviate the problems existing in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: An assembly jig for large-span hyperboloid reticulated shell steel structure components, the assembly jig comprising two parallel tracks, and an adjustment mechanism between the two tracks for adjusting the relative distance between the two tracks. The adjusting mechanism includes at least a double-ended screw, with two external threads of opposite directions on each side of the double-ended screw. Threaded holes are provided in the middle of both tracks, and the two sides of the double-ended screw are respectively fitted into the threaded holes of the two tracks. The relative distance between the two tracks can be adjusted by rotating the double-ended screw. Multiple support components are provided on each track, and each support component is slidably disposed on the track. The support components are used to support steel structure components.

[0006] As described above, the assembly jig for large-span hyperboloid reticulated steel structure components preferably includes a drive motor and a drive bevel gear, wherein the drive bevel gear is fixed on the output shaft of the drive motor.

[0007] As described above, in the assembly jig for large-span hyperboloid reticulated steel structure components, preferably, a driven bevel gear is mounted on the double-ended screw, and the driving bevel gear meshes with the driven bevel gear for transmission.

[0008] As described above, the assembly jig for large-span hyperboloid reticulated steel structure components preferably includes an adjustment mechanism that further includes at least one guide rod. Guide holes are provided on both tracks, and the guide rod passes through the guide holes on both tracks simultaneously. The tracks move along the guide rod, and the axis of the guide rod is parallel to the axis of the double-ended screw.

[0009] As described above, the assembly jig for large-span hyperboloid reticulated steel structure components preferably includes a sliding seat and a hydraulic cylinder, wherein the sliding seat slides along a track and the hydraulic cylinder is mounted on the sliding seat.

[0010] As described above, the assembly jig for large-span hyperboloid reticulated steel structure components preferably includes a hydraulic push rod, one end of which is hinged to a sliding seat, and the other end of which is hinged to a track; the sliding seat is moved on the track by the extension and retraction of the hydraulic push rod.

[0011] As described above, the assembly jig for large-span hyperboloid reticulated steel structure components preferably has multiple positioning pin holes on the track, and each support component also includes a pin installed in a positioning pin hole, with the end of the hydraulic push rod hinged to the pin.

[0012] As described above, in the assembly jig for large-span hyperboloid reticulated steel structure components, preferably, the top of the hydraulic cylinder is hinged with a support frame, which is a U-shaped frame.

[0013] As described above, in the assembly jig for large-span hyperboloid reticulated steel structure components, preferably, multiple support springs are evenly arranged between the bottom of the support frame and the extension rod of the hydraulic cylinder.

[0014] As described above, in the assembly jig for large-span hyperboloid reticulated steel structure components, preferably, locking screws are mounted on the side wall of the support frame, and a pressure equalizing plate is provided inside the locking screws.

[0015] Compared with the closest prior art, the technical solution of this application has the following beneficial effects: In this assembly jig, the distance between the two tracks can be adjusted by rotating the double-ended screw. This, in turn, allows for adjustment of the lateral spacing between the support components on the two tracks. Furthermore, the longitudinal spacing between the support components on each track can be adjusted by sliding the support components along the tracks. As a result, this assembly jig can be used for assembling hyperboloid reticulated steel structure components of different sizes and specifications, greatly improving its adaptability.

[0016] Moreover, the assembly frame is composed of modular structures such as tracks, adjustment mechanisms, and support components, which not only makes the installation and assembly of the assembly frame simpler and more convenient, thus improving construction efficiency, but also facilitates the reuse of the assembly frame, thus improving the material utilization rate of the assembly frame.

[0017] In addition, multiple positioning pin holes are provided to give the sliding seat a larger range of longitudinal position adjustment; moreover, the sliding seat, hydraulic push rod, pin and track form a closed reinforcing space, which further enhances the structural strength of the assembly jig and makes the assembly jig more stable.

[0018] By setting support springs, the support frame is pressed against the contact surface of the steel structure component, thereby allowing the support frame to fit better against the contact surface of the steel structure component and enabling the support assembly to better support the steel structure component. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 A top view of an assembly jig provided according to some embodiments of this application; Figure 2 A front view of an assembly jig provided according to some embodiments of this application; Figure 3 This is a partial side view of an assembly jig provided according to some embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Track; 2. Guide rod; 3. Double-ended screw; 4. Drive motor; 5. Driving bevel gear; 6. Driven bevel gear; 7. Sliding seat; 71. Roller; 8. Hydraulic push rod; 9. Pin; 10. Positioning pin hole; 11. Hydraulic cylinder; 12. Support spring; 13. Support frame; 14. Pressure equalizing plate; 15. Locking screw. Detailed Implementation

[0021] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of interpretation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature represented or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0022] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. The "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0024] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The present application will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0026] According to specific embodiments of this application, such as Figure 1-3 As shown, this application provides an assembly jig for large-span hyperboloid reticulated steel structure components. The assembly jig includes two parallel tracks 1, and an adjustment mechanism is provided between the two tracks 1 to adjust the relative distance between the two tracks 1.

[0027] The distance adjustment mechanism includes at least a double-ended screw 3. The two sides of the double-ended screw 3 are provided with two external threads with opposite directions. The middle of the two rails 1 is provided with threaded holes. The two sides of the double-ended screw 3 are respectively assembled in the threaded holes of the two rails 1. By rotating the double-ended screw 3, the relative distance between the two rails 1 can be adjusted.

[0028] Multiple support components are provided on each track 1, and each support component is slidably mounted on track 1. The support components are used to support the steel structure components.

[0029] In this assembly jig, the distance between the two tracks 1 can be adjusted by rotating the double-headed screw 3. This, in turn, allows for adjustment of the lateral spacing between the support components on the two tracks 1. Furthermore, the longitudinal spacing between the support components on each track 1 can be adjusted by sliding the support components along the tracks 1. As a result, this assembly jig can be used for assembling hyperboloid reticulated steel structure components of different sizes and specifications, greatly improving its adaptability.

[0030] Moreover, the assembly frame is composed of modular structures such as track 1, adjustment mechanism, and support components, which not only makes the installation and assembly of the assembly frame simpler and more convenient, thus improving construction efficiency, but also facilitates the reuse of the assembly frame, thus improving the material utilization rate of the assembly frame.

[0031] The adjusting mechanism also includes a drive motor 4 and a drive bevel gear 5, with the drive bevel gear 5 fixed on the output shaft of the drive motor 4. In this embodiment, the drive motor 4 serves as the drive source for the adjusting mechanism, driving the drive bevel gear 5 to rotate.

[0032] A driven bevel gear 6 is mounted on the double-ended screw 3, and the driving bevel gear 5 meshes with the driven bevel gear 6 for transmission. In this embodiment, the drive motor 4 drives the driving bevel gear 5 to rotate, and the driving bevel gear 5 drives the driven bevel gear 6 to rotate, thereby causing the driven bevel gear 6 to rotate synchronously with the double-ended screw 3. By adjusting the rotation direction of the drive motor 4, the rotation direction of the double-ended screw 3 can be adjusted. Through the forward or reverse rotation of the double-ended screw 3, the distance between the two tracks 1 can be increased or decreased.

[0033] When adjusting the distance between the two tracks 1, multiple polytetrafluoroethylene (PTFE) plates can be installed below the two tracks 1. The PTFE plates act as sliding plates. After the distance between the two tracks 1 is adjusted, the PTFE plates can be pulled out from below the two tracks 1.

[0034] The adjusting mechanism also includes at least one guide rod 2. Guide holes are provided on both tracks 1. The guide rod 2 passes through the guide holes on both tracks 1. The tracks 1 move along the guide rod 2. The axis of the guide rod 2 is parallel to the axis of the double-headed screw 3.

[0035] In this embodiment, all guide holes and threaded holes are located on the side of the track 1, and the axes of the guide holes and threaded holes extend horizontally. The adjusting mechanism includes two guide rods 2, located on the front and rear sides of the double-ended screw 3, respectively. The two guide rods 2 ensure smoother movement of the track 1 along the guide rods 2, and the two guide rods 2 and the two tracks 1 form a closed rectangular structure, which helps to strengthen the structural strength of the assembly jig.

[0036] The support assembly includes a sliding seat 7 and a hydraulic cylinder 11. The sliding seat 7 slides along the track 1, and the hydraulic cylinder 11 is mounted on the sliding seat 7.

[0037] In this embodiment, the steel structure component is supported by a hydraulic cylinder 11. The hydraulic cylinder 11 is mounted on a sliding seat 7, which can slide along the track 1, thereby facilitating the adjustment of the position of the hydraulic cylinder 11. This allows the assembly jig to be suitable for hyperboloid reticulated steel structure components of different sizes and specifications.

[0038] The bottom of the sliding seat 7 is provided with multiple rollers 71 to facilitate the sliding of the sliding seat 7 on the track 1; baffles are provided on both sides of the sliding seat 7, and the baffles on both sides of the sliding seat 7 are located on both sides of the track 1 to ensure that the sliding seat 7 slides stably on the track 1 and to prevent the sliding seat 7 from derailing.

[0039] The support assembly also includes a hydraulic push rod 8, one end of which is hinged to the sliding seat 7, and the other end of which is hinged to the track 1; the sliding seat 7 is moved on the track 1 by the extension and retraction of the hydraulic push rod 8.

[0040] In this embodiment, the hydraulic push rod 8 is arranged parallel to the track 1. The position of the sliding seat 7 can be adjusted by extending and shortening the hydraulic push rod 8, so as to achieve precise adjustment of the position of the sliding seat 7.

[0041] The track 1 is provided with multiple positioning pin holes 10, and each support component also includes a pin 9, which is installed in a positioning pin hole 10. The end of the hydraulic push rod 8 is hinged to the pin 9.

[0042] In this embodiment, according to the need for adjusting the position of the sliding seat 7, the pin 9 is installed in the positioning pin hole 10 at a suitable position, and then one end of the hydraulic push rod 8 is hinged to the pin 9 and the other end is hinged to the sliding seat 7 to facilitate the adjustment of the position of the sliding seat 7. In this embodiment, multiple positioning pin holes 10 are provided to give the sliding seat 7 a larger longitudinal position adjustment range. In addition, the sliding seat 7, hydraulic push rod 8, pin 9 and track 1 form a closed reinforcing space, which further strengthens the structural strength of the assembly jig and makes the assembly jig more stable.

[0043] A support frame 13, which is U-shaped, is hinged to the top of the hydraulic cylinder 11. In this embodiment, the U-shaped support frame 13 supports a portion of the hyperboloidal reticulated steel structure component. Since the contact surface between the hyperboloidal reticulated steel structure component and the support frame 13 is often inclined, hinged support frame 13 to the top of the hydraulic cylinder 11 allows the support frame 13 to rotate, enabling it to better conform to the inclined contact surface. Specifically, the support frame 13 is hinged to the top of the hydraulic cylinder 11 via a ball joint.

[0044] Multiple support springs 12 are evenly arranged between the bottom of the support frame 13 and the extension rod of the hydraulic cylinder 11. In this embodiment, four support springs 12 are evenly arranged between the bottom of the support frame 13 and the extension rod of the hydraulic cylinder 11, and the four support springs 12 are respectively located in the front, back, left, and right directions of the extension rod of the hydraulic cylinder 11. By setting the support springs 12, the support frame 13 is pressed against the contact surface of the steel structure component, so that the contact surface between the support frame 13 and the steel structure component is better fitted, and the support assembly better supports the steel structure component.

[0045] Locking screws 15 are mounted on the side wall of the support frame 13, and a pressure equalizing plate 14 is provided inside the locking screws 15. In this embodiment, a threaded hole is provided through the side wall of the support frame 13, and the locking screws 15 are mounted in the threaded hole. The pressure equalizing plate 14 can be placed only inside the locking screws 15, or the pressure equalizing plate 14 can be directly fixed to the end of the locking screws 15. When a part of the hyperboloid reticulated steel structure component falls completely inside the support frame 13, the locking screws 15 are rotated to press the pressure equalizing plate 14 onto the hyperboloid reticulated steel structure component, so as to ensure the stability of the connection between the hyperboloid reticulated steel structure component and the support frame 13.

[0046] In other embodiments, locking screws 15 can be installed on the side walls on both sides of the U-shaped support frame 13, and a pressure equalizing plate 14 can be provided inside each locking screw 15 to further improve the stability of the connection between the hyperboloid reticulated steel structure member and the support frame 13.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An assembly jig for large-span hyperboloid reticulated shell steel structure components, characterized in that, The assembly frame includes two parallel tracks, and an adjustment mechanism is provided between the two tracks to adjust the relative distance between them. The adjusting mechanism includes at least a double-ended screw, with two external threads of opposite directions on each side of the double-ended screw. Threaded holes are provided in the middle of both tracks, and the two sides of the double-ended screw are respectively fitted into the threaded holes of the two tracks. The relative distance between the two tracks can be adjusted by rotating the double-ended screw. Multiple support components are provided on each track, and each support component is slidably disposed on the track. The support components are used to support steel structure components.

2. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 1, characterized in that, The adjusting mechanism also includes a drive motor and a drive bevel gear, with the drive bevel gear fixed on the output shaft of the drive motor.

3. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 2, characterized in that, The driven bevel gear is mounted on the double-ended screw, and the driving bevel gear meshes with the driven bevel gear for transmission.

4. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 3, characterized in that, The adjusting mechanism also includes at least one guide rod, and guide holes are provided on both tracks. The guide rod passes through the guide holes on both tracks simultaneously, and the tracks move along the guide rod. The axis of the guide rod is parallel to the axis of the double-ended screw.

5. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 1, characterized in that, The support assembly includes a sliding seat and a hydraulic cylinder. The sliding seat slides along a track, and the hydraulic cylinder is mounted on the sliding seat.

6. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 5, characterized in that, The support assembly also includes a hydraulic push rod, one end of which is hinged to the sliding seat, and the other end of which is hinged to the track; the sliding seat is moved on the track by the extension and retraction of the hydraulic push rod.

7. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 6, characterized in that, The track is provided with multiple positioning pin holes, and each support component also includes a pin, which is installed in a positioning pin hole, and the end of the hydraulic push rod is hinged to the pin.

8. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 5, characterized in that, The top of the hydraulic cylinder is hinged with a support frame, which is a U-shaped frame.

9. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 8, characterized in that, Multiple support springs are evenly arranged between the bottom of the support frame and the extension rod of the hydraulic cylinder.

10. The assembly jig for large-span hyperboloid reticulated shell steel structure components according to claim 8, characterized in that, The side wall of the support frame is fitted with locking screws, and a pressure equalizing plate is provided inside the locking screws.