Supporting frame unloading device of large-span steel structure corridor

Abstract

The utility model relates to the field of civil engineering, and discloses a supporting frame unloading device for a large-span steel structure corridor, which comprises a base, two mounting seats are fixed at the top of the base, jacks are fixed at the tops of the mounting seats, sensing assemblies are arranged at the telescopic ends of the jacks, a connecting block is fixed at the top of the base, and the top of the connecting block is provided with a connecting rod. A threaded rod is rotationally connected to the inner bottom wall of the connecting block, a connecting plate is in threaded connection with the outer surface of the threaded rod, a pushing assembly is arranged on the outer surface of the threaded rod, and a telescopic rod is fixed to the top of the base. According to the supporting frame unloading device of the large-span steel structure corridor, a threaded rod can be rotated by rotating a pushing assembly, so that a connecting plate which cannot rotate moves due to extrusion of threads, the height of the connecting plate is adjusted, the overall structure is simple, adjustment can be conducted without pulling an adjusting plate, and the practicability is high. Therefore, the moving precision is effectively guaranteed, and the whole device is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a support frame unloading device for a large-span steel structure corridor. Background Art

[0002] Unloading of steel structure refers to: in the construction of steel structure projects, overall lifting, overall lifting and sliding are adopted. When the overall structure has not formed a stable frame, towers or steel columns are temporarily used as supports to fix the components or structures. When the installation and interface welding work are completed and the structure is fully stressed, the temporary support is removed. This process is called unloading of steel structure. The so-called unloading of steel structure, to be precise, is the unloading of the steel structure support tower.

[0003] For example, the Chinese utility model patent with publication number CN209468099U relates to the technical field of hydraulic devices, specifically a hydraulic device for unloading a steel structure support frame, the hydraulic device includes: a crossbeam, a longitudinal beam, a hydraulic jack, a corbel, an adjustment plate, a top support, a triangular stiffening plate and a stiffening plate, at least three longitudinal beams are laid on the upper end of the crossbeam; and a top support is installed in the middle of the upper end of the longitudinal beam, and at least five adjustment plates are laid between the upper and lower parts of the top support. When there is a load on the top, the top load is transmitted to the longitudinal beam, and then the load is transmitted to the crossbeam through the longitudinal beam, so that there is enough working space, ensuring the stability and safety of the support unloading, so that multiple support frames can be unloaded synchronously according to site needs or structural design requirements to control the downward deflection of the main structure, solving the problem of difficulty in smoothly unloading the temporary support system of the large-span steel structure after the high-altitude assembly is completed.

[0004] However, there are still some problems. The adjustment plate is manually pulled out and the hydraulic jack is synchronously controlled to return. After the hydraulic jack exits the supporting force state, the welds and stress changes of the upper main structure are checked to see if they are normal. The adjustment plate needs to be manually pulled out. After the adjustment plate is squeezed for a long time, a certain error will occur in the thickness, which will affect the subsequent descent distance and is not conducive to use. Therefore, a support frame unloading device for a large-span steel structure corridor is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a support frame unloading device for a large-span steel structure corridor, which has the advantage of high precision and solves the problem that a certain error will occur in the thickness of the adjustment plate after being squeezed for a long time.

[0006] To achieve the above object, the utility model provides the following technical solutions: a support frame unloading device for a large-span steel structure corridor, comprising a base, two mounting seats are fixed on the top of the base, two jacks are fixed on the top of the mounting seats, and a sensing component is provided at the telescopic end of the jack, and the sensing component is used to control the moving distance of the jack;

[0007] A connecting block is fixed on the top of the base, and a threaded rod is rotatably connected to the inner bottom wall of the connecting block. The outer surface of the threaded rod is threadedly connected to a connecting plate slidably connected to the connecting block. A pushing component is provided on the outer surface of the threaded rod, and the pushing component is used to drive the threaded rod to rotate. A telescopic rod is fixed on the top of the base.

[0008] By adopting this technical solution, the threaded rod can be rotated by rotating the handle, so that the connecting plate that cannot rotate can be moved due to the extrusion of the thread to complete the height adjustment. The overall structure is simple, which makes the movement of the connecting plate more precise and effectively ensures the overall practicality.

[0009] Furthermore, the sensing component includes a fixed block fixed to the jack, the inner bottom wall of the fixed block is respectively fixed with a support block and a button, the inner bottom wall of the fixed block is fixed with a support spring located between the support block and the button, the top of the support spring is fixed with a sliding block slidably connected to the fixed block, and the internal thread of the sliding block is connected with a stabilizing block.

[0010] Furthermore, a bearing is fixed to the inner bottom wall of the connecting block, and the interior of the bearing is fixed to the threaded rod.

[0011] By adopting this technical solution, the position of the threaded rod can be effectively fixed by the provided bearing, and the threaded rod can be stably rotated, which effectively improves the overall stability and makes the whole more practical.

[0012] Furthermore, the telescopic rod comprises an extension block fixed to the base, and the extension rod is slidably connected inside the extension block.

[0013] By adopting this technical solution, the telescopic rod can be extended and retracted, so that it can be quickly determined whether the supporting position is suitable through the telescopic rod, which effectively ensures the stability of subsequent unloading, making the whole more practical.

[0014] Furthermore, the pushing assembly includes a driven gear fixed to the threaded rod, a driving gear is meshed on the left side of the driven gear, and a handle penetrating to the left side of the connecting block is fixed at the axis of the driving gear.

[0015] By adopting this technical solution, the rotation of the driving gear can be conveniently controlled through the provided handle, and the engagement of the provided driving gear with the driven gear can effectively convert the rotation in the up and down directions into the rotation in the left and right directions, thereby allowing the threaded rod to rotate.

[0016] Furthermore, movable blocks are fixed on both the left and right sides of the connecting plate, and sliding grooves slidably connected to the movable blocks are provided on both the left and right sides of the inner cavity of the connecting block.

[0017] By adopting this technical solution, through the sliding connection between the movable block and the sliding groove, the movement of the connecting plate is made more stable and the rotation of the connecting plate can be effectively restricted. When the threaded rod rotates, the connecting plate will move due to the extrusion of the thread.

[0018] Furthermore, sponge pads are fixed to the tops of the connecting plate and the stabilizing block, and a rubber pad is covered on the outer surface of the handle.

[0019] By adopting this technical solution, the stability of the jack and the connecting plate support can be effectively improved by setting the sponge pad and the rubber pad, thereby making the whole safer.

[0020] Furthermore, a stabilizing plate slidably connected to the jack is fixed on the outer surface of the connecting plate, and a stabilizing rod fixed to the connecting plate is obliquely fixed on the top of the stabilizing plate.

[0021] By adopting this technical solution, a part of the pressure of the connecting plate can be effectively shared to the jack through the provision of the stabilizing plate and the stabilizing rod, thereby making the support more stable.

[0022] Furthermore, the telescopic end of the jack faces upward, and a threaded hole matching the threaded rod is provided at the bottom of the connecting plate.

[0023] By adopting this technical solution, the threaded holes are provided so that the connecting plate can be moved due to the extrusion of the threads, thereby completing the height adjustment.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0025] 1. The support frame unloading device of the large-span steel structure corridor can rotate the threaded rod by rotating the push component, so that the connecting plate that cannot rotate can be moved due to the extrusion of the thread, thereby completing the adjustment of the height of the connecting plate. The overall structure is simple and there is no need to adjust by pulling the adjustment plate, thereby effectively ensuring the accuracy of the movement and making the overall more practical.

[0026] 2. The support frame unloading device of the large-span steel structure corridor can sense and control the descending distance of the jack through the set sensing component, thereby effectively ensuring the moving distance of the jack. The stability of the connecting plate can be effectively improved through the set stabilizing plate. The overall structure is simple, making the overall design more reasonable and effectively improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the sensing component of the utility model;

[0029] Figure 3 It is a three-dimensional diagram of the connection structure of the fixed block and the sliding block of the utility model.

[0030] In the figure: 1. base; 2. mounting base; 3. jack; 4. induction component; 401. fixing block; 402. supporting block; 403. button; 404. supporting spring; 405. sliding block; 406. stabilizing block; 5. connecting block; 6. bearing; 7. threaded rod; 8. connecting plate; 9. driven gear; 10. driving gear; 11. handle; 12. telescopic rod; 13. stabilizing rod; 14. stabilizing plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1 In this embodiment, a support frame unloading device for a large-span steel structure corridor includes a base 1, and two mounting seats 2 are fixed on the top of the base 1. The jack 3 can be easily disassembled through the arrangement of the mounting seats 2, so as to facilitate subsequent maintenance and make the overall structure more practical. Two jacks 3 are fixed on the top of the mounting seats 2. A wireless microcontroller is installed inside the jack 3, which can transmit Bluetooth signals. The telescopic end of the jack 3 faces upward, and the telescopic end of the jack 3 is provided with a sensing component 4, which is used to control the moving distance of the jack 3.

[0033] In addition, a connecting block 5 is fixed to the top of the base 1, and a threaded rod 7 is rotatably connected to the inner bottom wall of the connecting block 5. A bearing 6 is fixed to the inner bottom wall of the connecting block 5, and the inside of the bearing 6 is fixed to the threaded rod 7. Through the setting of the bearing 6, the position of the threaded rod 7 can be effectively fixed, and the threaded rod 7 can be stably rotated, which effectively improves the overall stability and makes the overall more practical. The outer surface of the threaded rod 7 is threadedly connected to a connecting plate 8 that is slidably connected to the connecting block 5. A threaded hole that is compatible with the threaded rod 7 is provided at the bottom of the connecting plate 8. Through the set threaded hole, the connecting plate 8 can be moved due to the extrusion of the thread, thereby completing the height adjustment. Sponge pads are fixed to the top of the connecting plate 8 and the stabilizing block 406, and a rubber pad is covered on the outer surface of the handle 11. Through the set sponge pads and rubber pads, the stability of the support of the jack 3 and the connecting plate 8 can be effectively improved, thereby making the overall safer.

[0034] Furthermore, a stabilizing plate 14 slidably connected to the jack 3 is fixed to the outer surface of the connecting plate 8, and a stabilizing rod 13 fixed to the connecting plate 8 is obliquely fixed to the top of the stabilizing plate 14. Through the provision of the stabilizing plate 14 and the stabilizing rod 13, a part of the pressure of the connecting plate 8 can be effectively shared to the jack 3, thereby making the support more stable. Movable blocks are fixed on the left and right sides of the connecting plate 8, and sliding grooves slidably connected to the movable blocks are provided on the left and right sides of the inner cavity of the connecting block 5. Through the sliding connection between the movable block and the sliding groove, the movement of the connecting plate 8 is made more stable and the rotation of the connecting plate 8 can be effectively restricted. When the threaded rod 7 rotates, the connecting plate 8 will move due to the extrusion of the thread.

[0035] In addition, a pushing assembly is provided on the outer surface of the threaded rod 7, and the pushing assembly includes a driven gear 9 fixed to the threaded rod 7, and a driving gear 10 is meshed on the left side of the driven gear 9. A handle 11 that runs through the left side of the connecting block 5 is fixed at the axis of the driving gear 10. The rotation of the driving gear 10 can be conveniently controlled by the provided handle 11, and the meshing of the provided driving gear 10 with the driven gear 9 can effectively convert the rotation in the up and down directions into the left and right directions, so that the threaded rod 7 can be rotated. The pushing assembly is used to drive the threaded rod 7 to rotate. A telescopic rod 12 is fixed on the top of the base 1, and the telescopic rod 12 includes an extension block fixed to the base 1, and the extension block is internally slidably connected to the extension rod. The provided telescopic rod 12 can be telescoped, so that the telescopic rod 12 can quickly determine whether the supporting position is suitable, effectively ensuring the stability of subsequent unloading, thereby making the overall more practical.

[0036] In general, the threaded rod 7 can be rotated by rotating the handle 11, so that the non-rotatable connecting plate 8 can be moved due to the squeezing of the thread to complete the height adjustment. The overall structure is simple, which makes the movement of the connecting plate 8 more precise and effectively ensures the overall practicality.

[0037] See also Figure 2-3 In order to ensure the accuracy of the movement of the jack, the sensing component 4 in this embodiment includes a fixed block 401 fixed to the jack 3, and the inner bottom wall of the fixed block 401 is respectively fixed with a support block 402 and a button 403. The support block 402 is provided to make the support of the sliding block 405 more stable. When the button 403 is fully pressed, it means that the jack 3 is fully supported. When the button 403 is pressed, the wireless microcontroller installed inside the jack 3 transmits the information to the staff's hand through the Bluetooth signal. On the machine, a support spring 404 located between the support block 402 and the button 403 is fixed to the inner bottom wall of the fixed block 401, and the support spring 404 is used to support the sliding block 405, so that the sliding block 405 is away from the button 403. A sliding block 405 slidably connected to the fixed block 401 is fixed to the top of the support spring 404, and the internal thread of the sliding block 405 is connected to the stabilizing block 406. By rotating the stabilizing block 406, the overall length of the sliding block 405 and the stabilizing block 406 can be adjusted.

[0038] In general, when the jack 3 fully supports the support frame, the sliding block 405 will press the button 403, thereby starting the wireless microcontroller installed inside the jack 3, and transmitting the information to the staff's mobile phone through a Bluetooth signal. At this time, the staff will know that the jack 3 has completed the support, thereby effectively reducing the error. The overall structure is simple, making the whole more practical.

[0039] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0040] The working principle of the above embodiment is:

[0041] By rotating the handle 11, the driving gear 10 can push the driven gear 9 to rotate, so that the threaded rod 7 rotates inside the bearing 6. Since the connection plate 8 is restricted from rotating by the connection block 5, the connection plate 8 moves due to the extrusion of the thread when the threaded rod 7 rotates, thereby completing the height adjustment;

[0042] When in use, the jack 3 is started to lift the support frame. At this time, the handle 11 is rotated to make the connecting plate 8 fit with the support frame. At this time, the handle 11 can be rotated in the opposite direction to make the connecting plate 8 drop a certain distance. After the support frame is partially unloaded, the jack 3 is lowered to make the connecting plate 8 support the support frame. At this time, the weld and stress changes of the main structure can be observed. If the various indicators checked are normal, the handle 11 can be rotated to make the jack 3 support the support frame again.

[0043] In addition, the induction component 4 can be used to confirm whether support is provided, and finally the subsequent unloading can be carried out according to the above steps. The overall structure is simple, and the movement accuracy is effectively improved, making the overall structure safer and less prone to collapse.

Claims

1. A support frame unloading device for a large-span steel structure corridor, comprising a base (1), characterized in that: Two mounting seats (2) are fixed on the top of the base (1), two jacks (3) are fixed on the top of the mounting seats (2), and sensing components (4) are provided at the telescopic ends of the jacks (3), and the sensing components (4) are used to control the moving distance of the jacks (3); A connecting block (5) is fixed on the top of the base (1); a threaded rod (7) is rotatably connected to the inner bottom wall of the connecting block (5); a connecting plate (8) slidably connected to the connecting block (5) is threadedly connected to the outer surface of the threaded rod (7); a pushing component is provided on the outer surface of the threaded rod (7); the pushing component is used to drive the threaded rod (7) to rotate; and a telescopic rod (12) is fixed on the top of the base (1).

2. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: The sensing component (4) comprises a fixed block (401) fixed to the jack (3); a support block (402) and a button (403) are respectively fixed to the inner bottom wall of the fixed block (401); a support spring (404) located between the support block (402) and the button (403) is fixed to the inner bottom wall of the fixed block (401); a sliding block (405) slidably connected to the fixed block (401) is fixed to the top of the support spring (404); and a stabilizing block (406) is connected to the inner thread of the sliding block (405).

3. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: A bearing (6) is fixed to the inner bottom wall of the connection block (5), and the interior of the bearing (6) is fixed to the threaded rod (7).

4. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: The telescopic rod (12) comprises an extension block fixed to the base (1), and the extension rod is slidably connected inside the extension block.

5. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: The pushing assembly comprises a driven gear (9) fixed to the threaded rod (7), a driving gear (10) meshing on the left side of the driven gear (9), and a handle (11) penetrating to the left side of the connecting block (5) being fixed at the axis of the driving gear (10).

6. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: Movable blocks are fixed on both the left and right sides of the connection plate (8), and sliding grooves slidably connected to the movable blocks are provided on both the left and right sides of the inner cavity of the connection block (5).

7. The support frame unloading device for a large-span steel structure corridor according to claim 5 is characterized by: Sponge pads are fixed to the tops of the connecting plate (8) and the stabilizing block (406), and a rubber pad is sleeved on the outer surface of the handle (11).

8. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized in that: A stabilizing plate (14) slidably connected to the jack (3) is fixed to the outer surface of the connecting plate (8), and a stabilizing rod (13) fixed to the connecting plate (8) is obliquely fixed to the top of the stabilizing plate (14).

9. The support frame unloading device for a large-span steel structure corridor according to claim 1 is characterized by: The telescopic end of the jack (3) faces upward, and a threaded hole matching the threaded rod (7) is provided at the bottom of the connecting plate (8).

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