Synchronous jacking device for steel pipe net rack

Abstract

The utility model discloses a steel pipe net rack synchronous jacking device which comprises a standard knot support, a jack, a jacking frame, a supporting frame and a cross beam, the jack is fixed on the supporting frame, the jack is provided with a jacking rod, the jacking rod is fixedly connected with the jacking frame, the cross beam is placed on the standard knot support, and the supporting frame is supported on the cross beam. And the jacking frame jacks the net rack under the action of the jack. The jacking frame comprises a jacking frame body, the jacking frame body is provided with a fixing sleeve, the fixing sleeve is provided with an installation hole, the jacking rod penetrates through the installation hole, the fixing sleeve is provided with a first bolt hole, the first bolt hole is communicated with the installation hole, the jacking rod is provided with a second bolt hole, and a connecting bolt is arranged between the first bolt hole and the second bolt hole. The jacking frame and the jacking rod of the jack can be detachably connected, the jacking frame can be detached only by screwing out the connecting bolt, the jacking rod of the jack does not need to be cut, the structure of the jacking rod of the jack is prevented from being damaged, the jacking frame of a complete structure is convenient to replace, and the jacking effect of the jacking frame on a net rack is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of grid installation, and in particular relates to a synchronous jacking device for a steel pipe grid. Background Art

[0002] With the improvement of contemporary architectural technology, space grid structures with various shapes are increasingly used in real life. Among steel structure grids, tetrahedral steel tube grids have been widely developed and applied due to their beautiful shape and simple structure. However, this type of grid adopts the conventional ground assembly and high-altitude bulk installation method, which will cause problems such as greater difficulty in controlling the accuracy of structural installation, a large amount of node welding, and high construction and installation costs.

[0003] In view of the above technical problems, the existing technology adopts an overall jacking method to solve the above technical problems for the grid. The grid installation construction speed is fast, the construction and installation cost can be reduced, and the safety risks brought by high-altitude operations are reduced.

[0004] For example, a Chinese patent discloses a utility model patent named a grid integral jacking and installation device (authorization announcement number: CN212743425U). During construction, the grid is assembled on the ground, and a suitable jacking point is selected. The grid is jacked up as a whole using a plurality of jack bodies. When the jack bodies are working, the columns are gradually jacked up and erected, and the height of the jack bodies is increased, which makes it easier for the jack bodies to complete the jacking work of the grid as a whole, reducing the safety risks brought by high-altitude operations and improving the construction efficiency of the grid.

[0005] The prior art uses a jacking frame to jack up the grid. At this time, the jacking frame needs to be fixedly connected to the jacking rod of the jack. The jacking rod can be fixedly connected to the jacking frame by direct welding. However, the jacking frame will be deformed and damaged after long-term use. In order to ensure the jacking effect of the jacking frame on the grid, the jacking frame needs to be replaced, and the connection between the jacking rod and the jacking frame needs to be cut, which is easy to damage the structure of the jacking frame. Utility Model Content

[0006] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a synchronous jacking device for a steel pipe grid frame, which can detachably connect the jacking frame and the jacking rod of the jack. The jacking frame can be removed by only unscrewing the connecting bolts, and there is no need to cut the jacking rod of the jack, thereby avoiding damage to the jacking rod structure of the jack, facilitating replacement of the jacking frame with a complete structure, and ensuring the jacking effect of the jacking frame on the grid.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A synchronous jacking device for a steel pipe grid includes a standard section bracket, a jack, a jacking frame, a support frame and a cross beam. The standard section bracket is connected up and down, the jack is fixed on the support frame, the jack is provided with a jacking rod, the jacking rod is fixedly connected to the jacking frame, the cross beam is placed on the standard section bracket, the support frame is supported on the cross beam, and the jacking frame jacks the grid under the action of the jack. It is characterized in that the jacking frame includes a jacking frame body, the jacking frame body is provided with a fixing sleeve, the fixing sleeve is provided with a mounting hole, the jacking rod passes through the mounting hole, the fixing sleeve is provided with a bolt hole 1, the bolt hole 1 is connected with the mounting hole, the jacking rod is provided with a bolt hole 2, and a connecting bolt is provided between the bolt hole 1 and the bolt hole 2.

[0009] Furthermore, the lifting frame body includes a base plate, a steel pipe and a connecting rod. Two steel pipes are arranged above the base plate. The connecting rod is fixed between the base plate and the steel pipe. The base plate is provided with a through hole 1. The cross-sectional area of ​​the through hole 1 is larger than the cross-sectional area of ​​the jacking rod. The jacking rod passes through the through hole 1. A fixing rod is fixed between the two steel pipes. A through hole 2 is formed between the fixing rod and the steel pipe. The fixing sleeve is provided with an edge portion, and the edge portion is welded in the through hole 2.

[0010] Furthermore, the bottom plate is provided with two sets of mutually symmetrically arranged clamping structures, and the clamping structures clamp and fix the top push rod.

[0011] Furthermore, the clamping structure includes a movable plate and a clamping plate. The movable plate is arranged on the bottom plate and moves and adjusts toward the push rod on the bottom plate. The clamping plate is fixed on the movable plate. An arc surface is provided on the inner side of the clamping plate, and the arc surface is used to clamp the outer side of the push rod.

[0012] Furthermore, the bottom plate is provided with a notch, and the bottom of the movable plate is provided with a threaded rod, the threaded rod passes through the notch, and moves in the notch toward the push rod, the threaded rod is threadedly connected with a locking nut, and the locking nut is locked at the bottom surface of the bottom plate.

[0013] Furthermore, a single standard section bracket includes two lateral connecting frames, the lateral connecting frames include columns and connecting pipes, the connecting pipes are fixed between the two columns, and angle steels are provided between the columns on different lateral connecting frames.

[0014] Furthermore, the column is welded with a lug plate, and the lug plate and the angle steel are fixed by bolts.

[0015] Furthermore, two ear plates are distributed up and down on a single column, an angle steel is provided between the two ear plates in the horizontal direction, and another angle steel is provided between the two ear plates in the inclined direction.

[0016] Furthermore, a flange is provided at the end of the column, and the flanges of two standard section brackets distributed up and down are fixed by bolts.

[0017] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0018] The utility model fixes a fixing sleeve on the jacking frame, and the fixing sleeve and the jacking rod of the jack are connected by connecting bolts. The jacking frame and the jacking rod of the jack can be detachably connected, and the jacking frame can be dismantled by only screwing out the connecting bolts, without cutting the jacking rod of the jack, thus avoiding damage to the jacking rod structure of the jack, facilitating replacement of the jacking frame with a complete structure, and ensuring the jacking effect of the jacking frame on the grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0021] Figure 2 for Figure 1 Right view of;

[0022] Figure 3 This is a schematic diagram of the structure of the connection between the fixing sleeve and the push rod in the first embodiment of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the jacking frame body in the first embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing sleeve in the first embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the jack in the first embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the connection between the jacking frame, the jack and the support frame in the first embodiment of the utility model;

[0027] Figure 8 This is a schematic structural diagram of the lateral connecting frame in the first embodiment of the utility model;

[0028] Fig. 9 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0029] Fig.10 This is a structural schematic diagram of a second embodiment of the utility model in which a clamping structure is arranged on a jacking frame body;

[0030] Fig.11 This is a schematic structural diagram of the jacking frame body in the second embodiment of the utility model;

[0031] Fig.12 It is a structural schematic diagram of the clamping structure in the second embodiment of the present utility model.

[0032] In the figure, 1-standard section bracket; 2-jack; 3-lifting frame; 4-support frame; 5-crossbeam; 6-thrust rod; 7-lifting frame body; 8-fixing sleeve; 9-mounting hole; 10-bolt hole one; 11-bolt hole two; 12-connecting bolt; 13-bottom plate; 14-steel pipe; 15-through hole one; 16-connecting rod; 17-fixing rod; 18-through hole two; 19-edge; 20-column; 21-connecting pipe; 22-ear plate; 23-flange; 24-angle steel; 25-holding structure; 26-movable plate; 27-holding plate; 28-threaded rod; 29-locking nut; 30-slot. DETAILED DESCRIPTION

[0033] like Figures 1 to 8 As shown, it is the first embodiment of the utility model.

[0034] A synchronous jacking device for a steel pipe grid includes a standard section bracket 1, a jack 2, a jacking frame 3, a support frame 4 and a crossbeam 5. The jack 2 is fixed on the support frame 4. The jack 2 is provided with a push rod 6. The push rod 6 is about 1m long and made of Q235B. The crossbeam 5 is placed on the standard section bracket 1, and the support frame 4 is placed on the crossbeam 5. The jacking frame 3 jacks the grid under the action of the jack 2, and the jacking frame 3 is supported on the standard section bracket 1 at the top.

[0035] The lifting frame 3 includes a lifting frame body 7, which includes a bottom plate 13, a steel pipe 14 and a connecting rod 16. Two steel pipes 14 are arranged above the bottom plate 13, and the connecting rod 16 is fixed between the bottom plate 13 and the steel pipe 14. The lifting frame body 7 of this structure has high strength and is not easy to deform. It is suitable for lifting a grid of a certain length and weight. The bottom plate 13 is provided with a through hole 15, and the cross-sectional area of ​​the through hole 15 is larger than the cross-sectional area of ​​the push rod 6. The push rod 6 passes through the through hole 15. A fixing rod 17 is fixed between the two steel pipes 14, and a through hole 2 18 is formed between the fixing rod 17 and the steel pipe 14. The fixing sleeve 8 is provided with an edge portion 19, and the edge portion 19 is welded in the through hole 2 18 to avoid direct welding of the fixing sleeve 8 and damage to the structure of the fixing sleeve 8. The fixing sleeve 8 is provided with a mounting hole 9, and the push rod 6 passes through the mounting hole 9. The fixing sleeve 8 is provided with a bolt hole 10, and the bolt hole 10 is connected with the mounting hole 9. The push rod 6 is provided with a bolt hole 2 11, and a connecting bolt 12 is provided between the bolt hole 10 and the bolt hole 2 11. A plurality of connecting bolts 12 can be evenly arranged circumferentially.

[0036] The standard section bracket 1 is connected up and down, and a single standard section bracket 1 includes two lateral connecting frames, and the lateral connecting frame includes a column 20 and a connecting pipe 21. The connecting pipe 21 is fixed between the two columns 20. An angle steel 24 is provided between the columns 20 on different lateral connecting frames. The columns 20 are welded with ear plates 22, and the ear plates 22 and the angle steel 24 are fixed by bolts. Two ear plates 22 are used to be distributed up and down on a single column 20, and an angle steel 24 is provided between the two ear plates 22 in the horizontal direction, and another angle steel 24 is provided between the two ear plates 22 in the inclined direction, so that the two lateral connecting frames are firmly connected, so that the synchronous jacking device has good stability and sufficient force bearing capacity.

[0037] A flange 23 is provided at the end of the column 20. When two standard section brackets 1 distributed up and down are connected, the flanges 23 are stacked and fixed by bolts, so as to facilitate the removal of the standard section brackets 1 at a later time.

[0038] The utility model is used as follows:

[0039] (1) According to the structural characteristics and the grid block situation, a synchronous lifting device is set under the grid block through structural verification;

[0040] (2) Start the jack 2, the pump station in the jack 2 supplies oil, the push rod 6 of the jack 2 rises a stroke, and then another standard section bracket 1 is installed on the standard section bracket 1, and the standard section brackets 1 are distributed up and down;

[0041] (3) The oil in the pump station of jack 2 is returned. At this time, the lifting frame 3 is limited on the uppermost standard section support 1, the push rod 6 is limited, the jack 2 and the support frame 4 are raised as a whole, and then the crossbeam 5 is moved up to the upper standard section support 1, and the crossbeam 5 is inserted under the support frame 4 to complete a stroke;

[0042] (4) Repeat the above steps and simultaneously lift the grid to the specified design height to complete the grid installation.

[0043] The lifting operation of the grid frame of the utility model is the same as the lifting operation adopted by the utility model patent of a grid frame integral lifting installation device (authorization announcement number: CN212743425U).

[0044] like Figures 9 to 12 As shown, this is the second embodiment of the utility model.

[0045] Taking into account that the lifting frame body 7 has a certain height, the jacking rod 6 extends into the lifting frame body 7 for a certain length. In order to increase the connection strength between the lifting frame body 7 and the jacking rod 6, the utility model is based on the structure of the first embodiment and arranges two sets of mutually symmetrical clamping structures 25 on the bottom plate 13. The clamping structures 25 clamp and fix the jacking rod 6, increase the connection between the jacking rod 6 and the lifting frame 3, improve the stability of the lifting frame 3, and make the lifting frame 3 have better force-bearing capacity.

[0046] The clamping structure 25 includes a moving plate 26 and a clamping plate 27. The clamping plate 27 is fixed on the moving plate 26. The inner side of the clamping plate 27 is provided with an arc surface, which is used to clamp the outer side of the push rod 6. The moving plate 26 is arranged at the bottom plate 13 and moves and adjusts toward the push rod 6 on the bottom plate 13. The specific design is as follows: the bottom plate 13 is provided with a notch 30, and the bottom of the moving plate 26 is provided with a threaded rod 28. The threaded rod 28 passes through the notch 30 and moves toward the push rod 6 in the notch 30. The threaded rod 28 is threadedly connected with a locking nut 29, and the locking nut 29 is locked at the bottom surface of the bottom plate 13. To avoid the gap between the clamping plate 27 and the push rod 6, which causes the clamping plate 27 to be unable to support the push rod 6, the clamping plate 27 and the push rod 6 are tightly connected.

[0047] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A synchronous jacking device for a steel pipe grid, comprising a standard section bracket, a jack, a jacking frame, a support frame and a crossbeam, wherein the standard section bracket is connected up and down, the jack is fixed on the support frame, the jack is provided with a jacking rod, the jacking rod is fixedly connected to the jacking frame, the crossbeam is placed on the standard section bracket, the support frame is supported on the crossbeam, and the jacking frame jacks the grid under the action of the jack; Features: The jacking frame includes a jacking frame body, the jacking frame body is provided with a fixing sleeve, the fixing sleeve is provided with a mounting hole, the jacking push rod passes through the mounting hole, the fixing sleeve is provided with a bolt hole 1, the bolt hole 1 is connected to the mounting hole, the jacking push rod is provided with a bolt hole 2, and a connecting bolt is provided between the bolt hole 1 and the bolt hole 2.

2. A steel pipe grid synchronous lifting device according to claim 1, characterized in that: The lifting frame body includes a base plate, a steel pipe and a connecting rod. Two steel pipes are arranged above the base plate. The connecting rod is fixed between the base plate and the steel pipe. The base plate is provided with a through hole 1. The cross-sectional area of ​​the through hole 1 is larger than the cross-sectional area of ​​the jacking rod. The jacking rod passes through the through hole 1. A fixing rod is fixed between the two steel pipes. A through hole 2 is formed between the fixing rod and the steel pipe. The fixing sleeve is provided with an edge portion, and the edge portion is welded in the through hole 2.

3. A synchronous lifting device for a steel pipe grid according to claim 2, characterized in that: The bottom plate is provided with two sets of mutually symmetrically arranged clamping structures, and the clamping structures clamp and fix the push rod.

4. A synchronous lifting device for a steel pipe grid according to claim 3, characterized in that: The clamping structure includes a movable plate and a clamping plate. The movable plate is arranged on the bottom plate and moves and adjusts toward the push rod on the bottom plate. The clamping plate is fixed on the movable plate. An arc surface is arranged on the inner side of the clamping plate, and the arc surface is used to clamp the outer side of the push rod.

5. The synchronous lifting device for steel pipe grid according to claim 4 is characterized in that: The bottom plate is provided with a slot, and the bottom of the movable plate is provided with a threaded rod, the threaded rod passes through the slot and moves in the slot toward the push rod, the threaded rod is threadedly connected with a locking nut, and the locking nut is locked at the bottom surface of the bottom plate.

6. The synchronous lifting device for steel pipe grid according to claim 1, characterized in that: A single standard section bracket includes two lateral connecting frames, each of which includes a column and a connecting pipe. The connecting pipe is fixed between the two columns, and angle steels are provided between the columns on different lateral connecting frames.

7. The synchronous lifting device for steel pipe grid according to claim 6 is characterized in that: The upright column is welded with an ear plate, and the ear plate and the angle steel are fixed by bolts.

8. The synchronous lifting device for steel pipe grid according to claim 7, characterized in that: Two ear plates are distributed up and down on a single column, one angle steel is arranged between the two ear plates in a horizontal direction, and another angle steel is arranged between the two ear plates in an inclined direction.

9. The synchronous lifting device for steel pipe grid according to claim 6, characterized in that: A flange is provided at the end of the column, and the flanges of the two standard section brackets distributed up and down are fixed by bolts.

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