Unloading-free slippage joint for slippage of steel truss

Abstract

The invention discloses an unloading-free slippage joint for slippage of a steel truss, and relates to the technical field of steel truss.The unloading-free slippage joint comprises a rail, a slippage seat body and a clamping seat are arranged at the top of the rail in a sliding mode, a component mounting frame is mounted at the top of the slippage seat body, and U-shaped seats are mounted on the outer side of the slippage seat body and the outer side of the clamping seat correspondingly; a first hydraulic cylinder is arranged between the two U-shaped seats, dismounting structures are arranged at the two ends of the first hydraulic cylinder, a first worm is meshed with a first worm gear, the first worm gear rotates along with the first worm gear, two sliding columns slide in two arc-shaped grooves, the two sliding columns pull the two U-shaped rods to slide on the clamping seats correspondingly, and dismounting structures are arranged at the two ends of the first hydraulic cylinder along with sliding of the U-shaped rods. And the extrusion block installed at one end can be far away from the top of the fixing frame, so that the fixing frame can be detached and replaced, parts such as a pressing block structure in the fixing frame can be conveniently maintained or replaced, the maintainability of the device is improved, and the whole sliding joint does not need to be unloaded in the detaching process.

Description

Technical Field

[0001] The invention relates to the technical field of steel trusses, in particular to an unloading-free sliding node used for sliding of steel trusses. Background Art

[0002] In the construction of large-span steel trusses, sliding technology is a commonly used construction method.

[0003] In the prior art, the authorization announcement number CN222886982U is a device for controlling the synchronous sliding of a large-span steel truss, comprising: a track, a sliding seat and a clamping seat are provided on the surface of the track, and the sliding seat and the clamping seat are both engaged with the track, a component mounting frame is provided on the upper part of the sliding seat and a first fixed frame is provided on the side of the component mounting frame, a second fixed frame is provided on the side of the clamping seat, and a first hydraulic cylinder is provided on the inner side of the first fixed frame.

[0004] In the above solution, the contact between the pressure block and the rail is achieved by setting a second hydraulic cylinder, thereby fixing the clamping seat. However, this device has some shortcomings. For example, when the second hydraulic cylinder fails, it needs to be fixed by a locking nut. This fixing method is extremely inconvenient during disassembly, affecting the replacement progress of the second hydraulic cylinder. In addition, if the first hydraulic cylinder fails, it is also difficult to disassemble it, which increases the difficulty of disassembly for personnel. Summary of the Invention

[0005] The purpose of the present invention is to provide a non-unloading sliding node for steel truss sliding, so as to solve the problem in the prior art that when the second hydraulic cylinder fails, it needs to be fixed by a locking nut. This fixing method is extremely inconvenient during disassembly, which affects the replacement progress of the second hydraulic cylinder.

[0006] The top of the detent slide is provided with a U-shaped rod, and the U-shaped rod passes through the inner side of the square groove and is slidably connected to the clamping seat. One end of the U-shaped rod is provided with an extrusion block, and a fixing frame is provided between the two extrusion blocks, and a pressure block structure is provided inside the fixing frame.

[0007] Preferably, the disassembly structure includes two limit sleeves, both of which are rotatably connected to the inner side of the U-shaped seat, a connecting block is provided between the two limit sleeves, the connecting block is fixedly connected to the first hydraulic cylinder, and both of the limit sleeves are provided with limit heads, one of which is fixedly connected to the connecting block, and one end of the other limit head is fixedly connected to a square rod, one end of the square rod passes through the outside of the connecting block and extends to the inside of the connecting block, and the square rod is slidably connected to the connecting block.

[0008] Preferably, the disassembly structure also includes a threaded rod, which is rotatably connected to the inside of the connecting block, and a worm gear 2 is fixedly connected to the outside of the threaded rod, and a worm gear 2 is meshedly connected to the outside of the worm gear 2, and the bottom end of the worm gear 2 is rotatably connected to the connecting block, and the top end of the worm gear 2 passes through the top end of the connecting block and is rotatably connected to the connecting block, and a turning handle 1 is installed on the top end of the worm gear 2, and the outside of the threaded rod is threadedly connected to the adjustment block, and the adjustment block is fixedly connected to the outside of the square rod.

[0009] Preferably, both ends of the worm one pass through the inner side of the square slot and extend to the outer side of the clamping seat, the worm one is rotatably connected to the clamping seat, and a turning handle 2 is installed at one end of the worm one.

[0010] Preferably, the two extrusion blocks are in contact with the top of the fixing frame, a fixing groove is provided on the top of the clamping seat, and the bottom of the fixing frame is arranged inside the fixing groove. The opening of the fixing groove can realize the limitation of the fixing frame.

[0011] Preferably, the pressure block structure includes a second hydraulic cylinder and a storage groove, the second hydraulic cylinder is fixedly connected to the inner side of the fixed frame, the storage groove is formed at the bottom end of the fixed groove, the telescopic end of the second hydraulic cylinder is fixedly connected to the pressure block body, the pressure block body is arranged inside the storage groove, the opening of the fixed groove is larger than the storage groove, and it is convenient to pull out the pressure block body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the present application, a worm is engaged with a worm wheel, and the worm wheel rotates accordingly, while two slide posts slide in two arc grooves. The two slide posts respectively pull two U-shaped rods to slide on the clamping seat. As the U-shaped rod slides, the extrusion block installed at one end thereof can move away from the top of the fixed frame, thereby realizing the disassembly and replacement of the fixed frame, thereby facilitating the maintenance or replacement of components such as the pressure block structure inside the fixed frame, thereby improving the maintainability of the device, and the disassembly process does not require the unloading of the entire sliding node.

[0014] 2. In this application, the rotation of the threaded rod drives the square rod to move along the axial direction of the threaded rod. During the movement, the square rod can drive the other limit head to move out of the corresponding limit sleeve to a certain position. When the square rod drives the other limit head to move out a sufficient position, pulling the first hydraulic cylinder can make one of the limit heads be pulled out from one of the limit sleeves, thereby completing the disassembly of the first hydraulic cylinder. This structure can realize the convenient disassembly of the first hydraulic cylinder without the need for complicated unloading operations on the entire sliding node, greatly improving the maintainability and maintenance efficiency of the device, and facilitating the staff to replace or repair the first hydraulic cylinder, thereby ensuring the normal operation and construction progress of the entire steel truss sliding node. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an unloading-free sliding node for sliding of a steel truss according to the present invention;

[0016] Figure 2 This is a schematic diagram of a disassembly structure of a non-unloading sliding node for sliding a steel truss according to the present invention;

[0017] Figure 3 The present invention is a non-unloading sliding node for steel truss sliding Figure 2 A magnified view of the structure of part A;

[0018] Figure 4 This is a cross-sectional view of a clamping seat of a non-unloading sliding node for sliding a steel truss according to the present invention;

[0019] Figure 5 The figure is a structural diagram of a worm gear of a non-unloading sliding node for sliding of a steel truss according to the present invention.

[0020] Numbers in the figure: 1. Track; 2. Sliding seat main body; 200. Component mounting frame; 3. Clamping seat; 300. Fixed groove; 301. Square groove; 302. Storage groove; 4. Second hydraulic cylinder; 5. Fixed frame; 6. Pressing block; 7. Worm gear one; 700. Arc groove; 8. Sliding column; 9. Worm gear one; 10. U-shaped rod; 11. Extrusion block; 12. First hydraulic cylinder; 13. Connecting block; 14. U-shaped seat; 15. Limit sleeve; 16. Limit head; 17. Square rod; 18. Adjusting block; 19. Threaded rod; 20. Worm gear two; 21. Worm gear two. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: Figure 1 - Figure 5 As shown, the present invention provides a technical solution for an unloading-free sliding node for sliding of a steel truss, comprising a track 1, a sliding seat body 2 and a clamping seat 3 slidingly provided on the top of the track 1, a component mounting frame 200 installed on the top of the sliding seat body 2, U-shaped seats 14 installed on the outside of the sliding seat body 2 and the clamping seat 3, a first hydraulic cylinder 12 is provided between the two U-shaped seats 14, and a disassembly structure is provided at both ends of the first hydraulic cylinder 12, a square groove 301 is formed on the inside of the clamping seat 3, a worm gear 7 is provided inside the square groove 301, the bottom end of the worm gear 7 is rotatably connected to the clamping seat 3, a worm 9 is meshedly connected to the outside of the worm gear 7, and both ends of the worm 9 pass through the square groove 301 inner side and extends to the outer side of the clamping seat 3, the worm 9 is rotatably connected to the clamping seat 3, and a turning handle 2 is installed at one end of the worm 9. Two arc grooves 700 are provided on the top of the worm wheel 7, and a sliding column 8 is slidingly provided inside the arc groove 700. A U-shaped rod 10 is installed on the top of the sliding column 8. The U-shaped rod 10 passes through the inner side of the square groove 301 and is slidably connected to the clamping seat 3. An extrusion block 11 is installed at one end of the U-shaped rod 10, and a fixing frame 5 is provided between the two extrusion blocks 11. The two extrusion blocks 11 are both in contact with the top of the fixing frame 5. A fixing groove 300 is provided on the top of the clamping seat 3, and the bottom of the fixing frame 5 is provided inside the fixing groove 300. A pressure block structure is provided inside the fixing frame 5.

[0023] The pressing block structure includes a second hydraulic cylinder 4 and a receiving groove 302. The second hydraulic cylinder 4 is fixedly connected to the inner side of the fixed frame 5. The receiving groove 302 is formed at the bottom end inside the fixed groove 300. The telescopic end of the second hydraulic cylinder 4 is fixedly connected to the pressing block body 6, and the pressing block body 6 is arranged inside the receiving groove 302.

[0024] Specifically, by turning the second turning handle, the worm 9 engages with the worm wheel 7, and the worm wheel 7 rotates accordingly, and the two sliding posts 8 slide in the two arc-shaped grooves 700. The two sliding posts 8 respectively pull the two U-shaped rods 10 to slide on the clamping seat 3. As the U-shaped rods 10 slide, the extrusion block 11 installed at one end thereof can move away from the top of the fixing frame 5, so that the fixing frame 5 can be disassembled and replaced, thereby facilitating the maintenance or replacement of components such as the pressure block structure inside the fixing frame 5, thereby improving the maintainability of the device, and the disassembly process does not require unloading of the entire sliding node.

[0025] Example: Figure 1 - Figure 3As shown, the disassembly structure includes two limiting sleeves 15, both limiting sleeves 15 are rotatably connected to the inner side of the U-shaped seat 14, a connecting block 13 is provided between the two limiting sleeves 15, the connecting block 13 is fixedly connected to the first hydraulic cylinder 12, and limiting heads 16 are provided inside the two limiting sleeves 15, one of which is fixedly connected to the connecting block 13, and one end of the other limiting head 16 is fixedly connected to a square rod 17, one end of the square rod 17 passes through the outside of the connecting block 13 and extends to the inside of the connecting block 13, and the square rod 17 is fixed to the connecting block 13. The sliding connection and disassembly structure also includes a threaded rod 19, which is rotatably connected to the inside of the connecting block 13. A worm gear 20 is fixedly connected to the outside of the threaded rod 19, and a worm 21 is meshedly connected to the outside of the worm gear 20. The bottom end of the worm 21 is rotatably connected to the connecting block 13, and the top of the worm 21 passes through the top of the inside of the connecting block 13 and is rotatably connected to the connecting block 13. A turning handle 1 is installed on the top of the worm 21. The outside of the threaded rod 19 is threadedly connected to the adjusting block 18, and the adjusting block 18 is fixedly connected to the outside of the square rod 17.

[0026] Specifically, when the handle 1 is turned, the worm 21 is engaged with the worm wheel 20, and the worm wheel 20 rotates accordingly. Since the worm wheel 20 is fixedly connected to the threaded rod 19, the threaded rod 19 begins to rotate. The threaded rod 19 is threadedly connected to the adjustment block 18, and the adjustment block 18 is fixedly connected to the outside of the square rod 17. Therefore, the rotation of the threaded rod 19 will drive the square rod 17 to move along the axial direction of the threaded rod 19. During the movement, the square rod 17 can drive another limit head 16 to move out of the corresponding limit sleeve 15 to a certain position. When the square rod 17 After the other limit head 16 is moved to a sufficient position, pulling the first hydraulic cylinder 12 can cause one of the limit heads 16 to be extracted from one of the limit sleeves 15, thereby completing the disassembly of the first hydraulic cylinder 12. This structure can realize the convenient disassembly of the first hydraulic cylinder 12 without the need for complicated unloading operations on the entire sliding node, greatly improving the maintainability and maintenance efficiency of the device, and making it convenient for staff to replace or repair the first hydraulic cylinder 12, thereby ensuring the normal operation and construction progress of the entire steel truss sliding node.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A non-unloading sliding node for sliding of steel trusses, characterized by: The invention comprises a track (1), wherein a sliding seat body (2) and a clamping seat (3) are slidingly provided on the top of the track (1), a component mounting frame (200) is installed on the top of the sliding seat body (2), a U-shaped seat (14) is installed on the outside of the sliding seat body (2) and the clamping seat (3), a first hydraulic cylinder (12) is provided between the two U-shaped seats (14), and a disassembly structure is provided at both ends of the first hydraulic cylinder (12), a square groove (301) is formed on the inner side of the clamping seat (3), a worm gear (7) is provided inside the square groove (301), and the bottom end of the worm gear (7) is provided with a worm gear (7). It is rotatably connected to the clamping seat (3), and the outer side of the worm wheel (7) is meshed with a worm (9). Two arc grooves (700) are provided on the top of the worm wheel (7), and a sliding column (8) is slidably provided inside the arc groove (700). A U-shaped rod (10) is installed on the top of the sliding column (8), and the U-shaped rod (10) passes through the inner side of the square groove (301) and is slidably connected to the clamping seat (3). An extrusion block (11) is installed at one end of the U-shaped rod (10), and a fixing frame (5) is provided between the two extrusion blocks (11), and a pressure block structure is provided inside the fixing frame (5).

2. The unloading-free sliding node for steel truss sliding according to claim 1, characterized in that: The disassembly structure comprises two limiting sleeves (15), both limiting sleeves (15) are rotatably connected to the inner side of the U-shaped seat (14), a connecting block (13) is provided between the two limiting sleeves (15), the connecting block (13) is fixedly connected to the first hydraulic cylinder (12), and limiting heads (16) are provided inside the two limiting sleeves (15), one of the limiting heads (16) is fixedly connected to the connecting block (13), and one end of the other limiting head (16) is fixedly connected to a square rod (17), one end of the square rod (17) passes through the outer side of the connecting block (13) and extends to the inside of the connecting block (13), and the square rod (17) is slidably connected to the connecting block (13).

3. The unloading-free sliding node for steel truss sliding according to claim 2, characterized in that: The disassembly structure further comprises a threaded rod (19), the threaded rod (19) being rotatably connected to the interior of the connecting block (13), the outer side of the threaded rod (19) being fixedly connected to a worm gear 2 (20), the outer side of the worm gear 2 (20) being meshedly connected to a worm gear 2 (21), the bottom end of the worm gear 2 (21) being rotatably connected to the connecting block (13), the top end of the worm gear 2 (21) passing through the top end of the interior of the connecting block (13) and being rotatably connected to the connecting block (13), the top end of the worm gear 2 (21) being installed with a turning handle 1, the outer side of the threaded rod (19) being threadedly connected to an adjusting block (18), and the adjusting block (18) being fixedly connected to the outer side of the square rod (17).

4. The unloading-free sliding node for steel truss sliding according to claim 1, characterized in that: Both ends of the worm gear 1 (9) pass through the inner side of the square slot (301) and extend to the outer side of the clamping seat (3). The worm gear 1 (9) is rotatably connected to the clamping seat (3). A turning handle 2 is installed at one end of the worm gear 1 (9).

5. The unloading-free sliding node for steel truss sliding according to claim 1, characterized in that: The two extrusion blocks (11) are in contact with the top of the fixing frame (5); a fixing groove (300) is provided on the top of the clamping seat (3); and the bottom of the fixing frame (5) is arranged inside the fixing groove (300).

6. The unloading-free sliding node for sliding of a steel truss according to claim 5, characterized in that: The pressing block structure comprises a second hydraulic cylinder (4) and a receiving groove (302), wherein the second hydraulic cylinder (4) is fixedly connected to the inner side of the fixing frame (5), the receiving groove (302) is formed at the bottom end inside the fixing groove (300), and the telescopic end of the second hydraulic cylinder (4) is fixedly connected to a pressing block body (6), and the pressing block body (6) is arranged inside the receiving groove (302).

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