Large-span roof daylighting roof steel truss fixing device
By combining longitudinal and transverse carriages and using threaded sleeves and tightening bolts, the problem of a single fixed position is solved, enabling multi-directional fixed adjustment and improving the applicability and stability of the roof skylight steel truss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIALIN CONSTR GRP CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-07-21
AI Technical Summary
The existing roof skylight steel truss fixing device has a single fixing position, lacks adjustability, and its use is relatively limited.
The device is fixed and adjusted by screwing in both the horizontal and vertical directions. By using a combination of longitudinal and horizontal slides, along with the use of threaded sleeves and tightening bolts, multi-directional fixing and adjustment can be achieved.
It improves the applicability and practicality of the fixing device, enhances the stability and reliability of the structure, and simplifies the installation process.
Smart Images

Figure CN224532010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of roof building, specifically to a fixing device for a large-span roof skylight steel truss. Background Technology
[0002] A steel truss is a truss made of steel. Steel trusses are commonly used as the main load-bearing components in the roof structures of industrial and civil buildings, crane beams, bridges, and hydraulic gates. Various types of towers, such as mast towers, television towers, and transmission line towers, often use space steel trusses composed of three-, four-, or more planar trusses.
[0003] This design achieves excellent roof lighting. At the installation location, a corresponding structure with a steel truss is required for fixation. Existing examples include a large-span roof skylight steel truss fixing device (patent publication number CN218622974U), which uses several second arc-shaped plates spaced apart from the first arc-shaped plates, connected by pins to form a single unit, enhancing structural stability. The plate-type rubber fixing seats can elastically absorb deformations in all directions of the upper structure, preventing stress concentration. This roof skylight steel truss fixing device gives the glass skylight both earthquake resistance and shear and tensile strength. Furthermore, the plate-type rubber fixing seats allow for batch manufacturing, simplifying installation and improving on-site construction efficiency.
[0004] However, the device is fixed in a single position and lacks adjustability, which limits its application. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a fixing device for large-span roof skylight steel trusses, which can be fixed and adjusted by screwing on both the horizontal and vertical sides, thus having a wider range of applications and improved practicality.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for a large-span roof skylight steel truss, comprising a fixing seat, a longitudinal slide, a threaded sleeve, a tightening bolt, a longitudinal slide, a connecting frame, a transverse slide, a threaded sleeve, a tightening bolt, a transverse slide, a mounting sleeve, fixing bolts, and nuts. The lower left and right sides of the longitudinal slide are respectively connected to the inner side of a set of fixing seats, and the middle front and rear sides of the fixing seats are respectively connected to the outer side of a set of threaded sleeves. The inner wall of each set of threaded sleeves is detachably screwed in. There is a set of tightening bolts. The inner side of the tightening bolts is longitudinally slidably connected to the outer side of the longitudinal slide. The top of the longitudinal slide is connected to the middle of the bottom of the transverse slide via a connecting bracket. The middle of the left and right sides of the transverse slide is respectively connected to the outer side of a set of threaded sleeves. Each set of threaded sleeves has a set of tightening bolts screwed in. The inner side of the transverse slide is slidably connected to the outer side of the transverse slide. The top of the transverse slide is connected to the bottom of the mounting sleeve. Multiple sets of fixing bolts move through the inner side of the mounting sleeve, and nuts are detachably screwed on the outer side of the fixing bolts.
[0009] Preferably, it also includes anti-loosening washers, and multiple sets of anti-loosening washers are movably sleeved on the outside of the first tightening bolt on the front and rear sides of the longitudinal slide and the outside of the second tightening bolt on the left and right sides of the transverse slide.
[0010] Preferably, it also includes a triangular beam, and each of the two sets of fixed seats is connected to a triangular beam on the middle of the left and right sides of the longitudinal slide.
[0011] Preferably, it also includes a second triangular beam, wherein the middle of the left and right sides of the connecting frame and the left and right sides of the bottom of the transverse slide are respectively connected to the top of a set of second triangular beams.
[0012] Preferably, it also includes a chamfered groove, wherein the mounting sleeve has a chamfered groove on the inner side of its top.
[0013] Preferably, it also includes an information board, with the left front end of the transverse carriage connected to the inner side of the information board.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a fixing device for a large-span roof skylight steel truss, which has the following advantages: The longitudinal slide is fixed in the installation position by the fixing seat. Then, according to the actual installation position of the steel truss, the first tightening bolts on the front and rear sides are tightened respectively. The first tightening bolts are screwed into the first threaded sleeve and act inward to tighten the front and rear sides of the longitudinal slide, fixing the longitudinal slide relative to the longitudinal slide. Then, the second tightening bolts on the left and right sides are tightened. The second tightening bolts are screwed into the second threaded sleeve and act inward to tighten the left and right sides of the second transverse slide, fixing the second transverse slide relative to the transverse slide. After adjustment, the mounting sleeve is fixed relative to the fixing seat. At this time, the mounting sleeve can be inserted into the tail side of the steel truss, and multiple sets of fixing bolts pass through the mounting sleeve and the tail side of the steel truss simultaneously. The fixing bolts are fixed by nuts on the protruding side. It is set to fix and adjust by tightening the bolts in both the transverse and vertical directions, which has a wider range of applications and improves practicality. Attached Figure Description
[0016] Figure 1 This is an axial view illustrating the structure of this utility model. Figure 2 This utility model Figure 1 Front view; Figure 3 This utility model Figure 1 The right view; Figure 4 This utility model Figure 1 The top view.
[0017] The following are labels in the attached diagram: 1. Fixed seat; 2. Longitudinal slide; 3. Threaded sleeve one; 4. Tightening bolt one; 5. Longitudinal slide; 6. Connecting frame; 7. Transverse slide; 8. Threaded sleeve two; 9. Tightening bolt two; 10. Transverse slide two; 11. Mounting sleeve; 12. Fixing bolt; 13. Nut; 14. Anti-loosening washer; 15. Triangular beam one; 16. Triangular beam two; 17. Chamfered groove; 18. Information board. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example
[0020] Please see Figure 1-4A fixing device for a large-span roof skylight steel truss includes a fixing seat 1, a longitudinal slide 2, a threaded sleeve 1 3, a tightening bolt 1 4, a longitudinal slide 5, a connecting frame 6, a transverse slide 7, a threaded sleeve 2 8, a tightening bolt 2 9, a transverse slide 2 10, a mounting sleeve 11, a fixing bolt 12, and a nut 13. The lower left and right sides of the longitudinal slide 2 are respectively connected to the inner side of a set of fixing seats 1, and the middle front and rear sides of the fixing seat 1 are respectively connected to the outer side of a set of threaded sleeve 1 3. Each set of threaded sleeves... The inner wall of sleeve 3 is detachably screwed with a set of tightening bolts 4. The inner side of the tightening bolts 4 is longitudinally slidably connected to the outer side of the longitudinal slide block 5. The top of the longitudinal slide block 5 is connected to the middle of the bottom of the transverse slide block 7 via a connecting bracket 6. The middle of the left and right sides of the transverse slide block 7 is respectively connected to the outer side of a set of threaded sleeves 8. Each set of threaded sleeves 8 is screwed with a set of tightening bolts 9. The inner side of the transverse slide block 7 is laterally slidably connected to the outer side of the transverse slide block 10. The top of the transverse slide block 10 is connected to... The bottom end of the mounting sleeve 11 is connected, and multiple sets of fixing bolts 12 move through the inner side of the mounting sleeve 11. Nuts 13 are detachably screwed onto the outer side of the fixing bolts 12. The longitudinal slide 2 is fixed in the installation position by the fixing seat 1. Then, according to the actual installation position of the steel truss, the front and rear tightening bolts 4 are screwed on respectively. The tightening bolts 4 are screwed on with the threaded sleeves 3 and act inward to tighten the front and rear sides of the longitudinal slide 5, so that the longitudinal slide 5 is fixed relative to the longitudinal slide 2. The left and right tightening bolts 9 are screwed on, so that the tightening bolts 9 are screwed on with the threaded sleeves 8 and act inward to tighten the left and right sides of the transverse slide 10, so that the transverse slide 10 is fixed relative to the transverse slide 7. Then, the mounting sleeve 11 is fixed relative to the fixing seat 1 after adjustment. At this time, the mounting sleeve 11 can be inserted into the tail side of the steel truss, and multiple sets of fixing bolts 12 pass through the mounting sleeve 11 and the tail side of the steel truss at the same time. The fixing bolts 12 are screwed on the protruding side by the nuts 13.
[0021] It also includes anti-loosening washers 14. Multiple sets of anti-loosening washers 14 are movably sleeved on the outside of the first 4 tightening bolts on the front and rear sides of the longitudinal slide 2 and the outside of the second 9 tightening bolts on the left and right sides of the transverse slide 7. According to actual needs, select the appropriate number of anti-loosening washers 14 and sleeve them on the outside of the first 4 tightening bolts and the second 9 tightening bolts. After they are tightened, they can push outward to support the heads of the corresponding first 4 tightening bolts and the second 9 tightening bolts, increase static friction, prevent their screws from loosening, and improve stability.
[0022] It also includes a triangular beam 15. Two sets of fixed seats 1 are connected to the middle of the left and right sides of the longitudinal slide 2 by a set of triangular beams 15. The triangular beams 15 can reinforce the connection between the fixed seats 1 and the longitudinal slide 2, prevent them from deforming and breaking under stress, and improve reliability.
[0023] It also includes a second triangular beam 16, with the middle of the left and right sides of the connecting frame 6 and the bottom left and right sides of the transverse slide 7 respectively connected to the top of a set of second triangular beams 16; the connection between the connecting frame 6 and the transverse slide 7 can be reinforced through the second triangular beams 16, thereby improving reliability.
[0024] It also includes a chamfered groove 17, which is provided on the inner side of the top of the mounting sleeve 11; the chamfered groove 17 can enlarge the upper opening of the mounting sleeve 11, making it easier to embed the steel truss at the tail side and improving its practicality.
[0025] It also includes an information board 18, with the front left end of the transverse slide 7 connected to the inner side of the information board 18; the information board 18 can display information about the device, making it easier to read and use, and improving convenience.
[0026] In summary, when using a large-span roof skylight steel truss fixing device, the longitudinal slide 2 is fixed in the installation position via the fixing seat 1. The fixing seat 1 and the longitudinal slide 2 are connected and reinforced by the triangular beam 15 to prevent them from deforming and breaking under stress. The connecting frame 6 and the transverse slide 7 are connected and reinforced by the triangular beam 16. Then, according to the actual installation position of the steel truss, the front and rear tightening bolts 4 are screwed on respectively. The tightening bolts 4 are screwed into the threaded sleeve 3 and act inward to tighten the front and rear sides of the longitudinal slide 5, fixing the longitudinal slide 5 relative to the longitudinal slide 2. Then, the left and right tightening bolts 9 are screwed on, and the tightening bolts 9 are screwed into the threaded sleeve 8 and act inward to tighten the left and right sides of the transverse slide 10. Tighten, and select the appropriate number of anti-loosening washers 14 according to actual needs, and put them on the outside of the tightening bolt 1 4 and the tightening bolt 2 9. After they are tightened, they can push outward to support the heads of the corresponding tightening bolt 1 4 and the tightening bolt 2 9, increase static friction, and prevent them from loosening. This fixes the transverse slide 2 10 relative to the transverse slide 7, and then fixes the mounting sleeve 11 relative to the fixing seat 1 after adjustment. At this time, the mounting sleeve 11 can be inserted into the steel truss tail side through the chamfered groove 17, and multiple sets of fixing bolts 12 simultaneously pass through the mounting sleeve 11 and the steel truss tail side. The fixing bolts 12 are screwed on the protruding side by nuts 13. In addition, the information of this device can be displayed through the information board 18, which is convenient for reading and assisting in use, and improves convenience.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing device for a large-span roof skylight steel truss, characterized in that, The system includes a fixed base (1), a longitudinal slide (2), a threaded sleeve (3), a tightening bolt (4), a longitudinal slide (5), a connecting frame (6), a transverse slide (7), a threaded sleeve (8), a tightening bolt (9), a transverse slide (10), a mounting sleeve (11), a fixing bolt (12), and a nut (13). The lower left and right sides of the longitudinal slide (2) are respectively connected to the inner side of a set of fixed bases (1), and the middle front and rear sides of the fixed bases (1) are respectively connected to the outer side of a set of threaded sleeves (3). Each set of threaded sleeves (3) has a set of tightening bolts (4) detachably screwed onto its inner wall. The inner side of the tightening bolts (4) It is longitudinally slidably connected to the outside of the longitudinal slide (5). The top of the longitudinal slide (5) is connected to the middle of the bottom of the transverse slide (7) via the connecting bracket (6). The middle of the left and right sides of the transverse slide (7) is connected to the outside of a set of threaded sleeves (8). Each set of threaded sleeves (8) is screwed with a set of tightening bolts (9). The inside of the transverse slide (7) is slidably connected to the outside of the transverse slide (10). The top of the transverse slide (10) is connected to the bottom of the mounting sleeve (11). The inside of the mounting sleeve (11) moves through multiple sets of fixing bolts (12), and the outside of the fixing bolts (12) is detachably screwed with nuts (13).
2. The fixing device for a large-span roof skylight steel truss according to claim 1, characterized in that: It also includes anti-loosening washers (14), and multiple sets of anti-loosening washers (14) are movably sleeved on the outside of the first (4) of the front and rear sides of the longitudinal slide (2) and the outside of the second (9) of the left and right sides of the transverse slide (7).
3. The fixing device for a large-span roof skylight steel truss according to claim 1, characterized in that: It also includes a triangular beam (15), and the two sets of fixed seats (1) are respectively connected to the middle of the left and right sides of the longitudinal slide (2) by a set of triangular beams (15).
4. The fixing device for a large-span roof skylight steel truss according to claim 1, characterized in that: It also includes a second triangular beam (16), the middle of the left and right sides of the connecting frame (6) and the bottom left and right sides of the transverse slide (7) are respectively connected to the top of a set of second triangular beams (16).
5. The fixing device for a large-span roof skylight steel truss according to claim 1, characterized in that: It also includes a chamfered groove (17), and the mounting sleeve (11) has a chamfered groove (17) on the inner side of its top.
6. The fixing device for a large-span roof skylight steel truss according to claim 1, characterized in that: It also includes an information board (18), the left front end of the transverse carriage (7) being connected to the inside of the information board (18).