Synchronous jacking device for steel pipe net rack
Technical Field
The utility model belongs to the technical field of grid installation, and particularly relates to a synchronous jacking device for a steel pipe grid.
Background
With the improvement of the technical level of modern architecture, space grid structures with various shapes are increasingly applied to real life, and in steel structure grid frames, quadrangular pyramid steel pipe grid frames can be widely developed and applied due to attractive shapes and simple structures, however, the grid frames can cause the problems of high structure installation accuracy control difficulty, high node welding amount, high construction and installation cost and the like due to the adoption of a conventional ground assembly and high-altitude bulk installation method.
To above-mentioned technical problem, prior art adopts whole jacking's mode to solve above-mentioned technical problem to the rack, and rack installation construction speed is fast, can reduce construction installation cost, has reduced the safety risk that the overhead working brought moreover.
For example, chinese patent discloses an utility model patent named as a net rack integral jacking installation device (issued bulletin number: CN 212743425U), which completes assembly of the net rack on the ground during construction, selects proper jacking points, utilizes a plurality of jack bodies to cooperate to jack the net rack integrally, gradually jacks up and gradually establishes upright posts when the jack bodies work, improves the height of the jack bodies, facilitates the jack bodies to complete the integral jacking work of the net rack, reduces the safety risk brought by high-altitude operation, and improves the construction efficiency of the net rack.
The prior art adopts the jacking frame to jack up the rack, and the jacking frame needs the jacking rod fixed connection with the jack this moment, and the jacking rod can adopt direct welding's mode and jacking frame fixed connection, however the problem that the structure deformation can appear in the jacking frame after long-time use, in order to guarantee the jacking effect of jacking frame to the rack, needs to change the jacking frame this moment, just needs to cut jacking rod and jacking frame junction, easily destroys the structure of jacking frame.
Disclosure of utility model
The utility model aims to solve the technical problems in the prior art and provide the steel pipe net rack synchronous jacking device which can detachably connect a jacking frame with a jacking rod of a jack, the jacking frame can be dismantled only by screwing out a connecting bolt, the jacking rod of the jack is not required to be cut, the damage of the jacking rod structure of the jack is avoided, the jacking frame with a complete structure is convenient to replace, and the jacking effect of the jacking frame on the net rack is ensured.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a synchronous jacking device of steel pipe rack, includes standard festival support, jack-up frame, support frame and crossbeam, and standard festival support connects from top to bottom, and the jack is fixed on the support frame, and the jack is equipped with the ejector pin, ejector pin fixed connection jack-up frame, and the crossbeam is placed on standard festival support, and the support frame supports on the crossbeam, and the jack-up frame is jacked up the rack under the effect of jack. The lifting frame is characterized by comprising a lifting frame body, wherein the lifting frame body is provided with a fixing sleeve, the fixing sleeve is provided with a mounting hole, a lifting rod penetrates through the mounting hole, the fixing sleeve is provided with a first bolt hole, the first bolt hole is communicated with the mounting hole, the lifting rod is provided with a second bolt hole, and a connecting bolt is arranged between the first bolt hole and the second bolt hole.
Further, the jacking frame body comprises a bottom plate, steel pipes and connecting rods, two steel pipes are arranged above the bottom plate, the connecting rods are fixed between the bottom plate and the steel pipes, the bottom plate is provided with a first through hole, the cross section area of the first through hole is larger than that of the jacking rod, the jacking rod penetrates through the first through hole, a fixing rod is fixed between the two steel pipes, a second through hole is formed between the fixing rod and the steel pipes, an edge part is arranged on the fixing sleeve, and the edge part is welded in the second through hole.
Further, the bottom plate is provided with two groups of enclasping structures which are symmetrically arranged, and the enclasping structures enclasp and fix the push rod.
Further, the holding structure comprises a moving plate and a holding plate, wherein the moving plate is arranged on the bottom plate and moves and adjusts towards the pushing rod direction, the holding plate is fixed on the moving plate, an arc surface is arranged on the inner side of the holding plate, and the arc surface is used for holding the outer side of the pushing rod.
Further, the bottom plate is equipped with the notch, and the bottom of movable plate is equipped with the threaded rod, and the threaded rod passes the notch to push rod direction removal in the notch, threaded rod threaded connection has lock nut, and lock nut locks in the bottom surface department of bottom plate.
Further, a single standard section support comprises two lateral connecting frames, each lateral connecting frame comprises an upright post and a connecting pipe, the connecting pipes are fixed between the two upright posts, and angle steel is arranged between the upright posts on different lateral connecting frames.
Further, the stand column is welded with an ear plate, and the ear plate and the angle steel are fixed through bolts.
Further, two lug plates are vertically distributed on a single upright post, one angle steel is arranged between the two lug plates in the horizontal direction, and the other angle steel is arranged between the two lug plates in the inclined direction.
Further, the end part of the upright post is provided with a flange plate, and the flange plates of the two standard joint brackets which are distributed up and down are fixed through bolts.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
According to the utility model, the fixed sleeve is fixed on the jacking frame, and the fixed sleeve is connected with the jacking rod of the jack through the connecting bolt. Can dismantle the connection with the ejector pin of jack and jack, only need unscrew connecting bolt, just can demolish the jack, need not cut the ejector pin of jack, avoid the ejector pin structure of jack impaired, conveniently change the complete jack of structure, guarantee the jack to rack jacking effect.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic view showing a structure of a connection between a fixing sleeve and a push rod in the first embodiment of the present utility model;
Fig. 4 is a schematic structural diagram of a body of a jack-up stand according to an embodiment of the present utility model;
FIG. 5 is a schematic structural view of a fixing sleeve according to a first embodiment of the present utility model;
FIG. 6 is a schematic view of a jack according to a first embodiment of the present utility model;
FIG. 7 is a schematic view of the connection among the jack-up rack, the jack and the support rack in the first embodiment of the present utility model;
FIG. 8 is a schematic view of a side connecting frame according to a first embodiment of the present utility model;
FIG. 9 is a schematic diagram of a second embodiment of the present utility model;
FIG. 10 is a schematic diagram illustrating a fastening structure disposed on a body of a jack-up frame according to a second embodiment of the present utility model;
FIG. 11 is a schematic structural diagram of a body of a jack-up stand according to a second embodiment of the present utility model;
fig. 12 is a schematic structural diagram of a hugging structure in a second embodiment of the present utility model.
In the drawing, a 1-standard joint bracket, a 2-jack, a 3-jacking frame, a 4-supporting frame, a 5-cross beam, a 6-jacking rod, a 7-jacking frame body, an 8-fixing sleeve, a 9-mounting hole, a 10-bolt hole I, a 11-bolt hole II, a 12-connecting bolt, a 13-bottom plate, a 14-steel pipe, a 15-through hole I, a 16-connecting rod, a 17-fixing rod, a 18-through hole II, a 19-edge part, a 20-upright post, a 21-connecting pipe, a 22-lug plate, a 23-flange plate, 24-angle steel, a 25-holding structure, a 26-moving plate, a 27-holding plate, a 28-threaded rod, a 29-locking nut and a 30-notch.
Detailed Description
As shown in fig. 1 to 8, in a first embodiment of the present utility model,
The utility model provides a synchronous jacking device of steel pipe rack, includes standard festival support 1, jack 2, jack 3, support frame 4 and crossbeam 5, and jack 2 is fixed on support frame 4, and jack 2 is equipped with ejector pin 6, and ejector pin 6 length is about 1m, and the material is Q235B. The cross beam 5 is placed on the standard joint support 1, the support frame 4 is placed on the cross beam 5, the jacking frame 3 jacks the net rack under the action of the jack 2, and the jacking frame 3 is supported on the standard joint support 1 at the uppermost part.
The jacking frame 3 includes jacking frame body 7, and jacking frame body 7 includes bottom plate 13, steel pipe 14 and connecting rod 16, adopts two steel pipes 14 to locate the top of bottom plate 13, and connecting rod 16 is fixed between bottom plate 13 and steel pipe 14, and this structure jacking frame body 7 intensity is high, and is difficult for the deformation, is fit for carrying out the jacking to the rack of certain length and weight. The bottom plate 13 is provided with a first through hole 15, the cross section area of the first through hole 15 is larger than the cross section area of the push rod 6, and the push rod 6 passes through the first through hole 15. A fixing rod 17 is fixed between the two steel pipes 14, a through hole II 18 is formed between the fixing rod 17 and the steel pipes 14, the fixing sleeve 8 is provided with an edge part 19, the edge part 19 is welded in the through hole II 18, and the fixing sleeve 8 is prevented from being directly welded to cause the damage of the structure of the fixing sleeve 8. The fixed sleeve 8 is provided with a mounting hole 9, the push rod 6 passes through the mounting hole 9, the fixed sleeve 8 is provided with a first bolt hole 10, the first bolt hole 10 is communicated with the mounting hole 9, the push rod 6 is provided with a second bolt hole 11, a connecting bolt 12 is arranged between the first bolt hole 10 and the second bolt hole 11, and a plurality of connecting bolts 12 can be uniformly arranged in the circumferential direction.
The standard knot support 1 is connected from top to bottom, and single standard knot support 1 includes two side direction link, and the side direction link includes stand 20 and connecting pipe 21, and connecting pipe 21 is fixed between two stands 20, is equipped with angle steel 24 between the stand 20 that is in on the different side direction link, and stand 20 welding has otic placode 22, and otic placode 22 and angle steel 24 pass through the bolt fastening. Two lug plates 22 are distributed on the single upright post 20 up and down, one angle steel 24 is arranged between the two lug plates 22 in the horizontal direction, and the other angle steel 24 is arranged between the two lug plates 22 in the inclined direction, so that the two lateral connecting frames are firmly connected, the synchronous jacking device is good in stability, and the synchronous jacking device has enough stress capability.
The end of the upright post 20 is provided with a flange plate 23, and when the two standard joint brackets 1 distributed up and down are connected, the flange plates 23 are stacked and fixed by bolts, so that the standard joint brackets 1 can be conveniently removed in the later period.
The utility model is used as follows:
(1) According to the structural characteristics and the grid partitioning condition, a synchronous jacking device is arranged below the partitioning grid through structural checking calculation;
(2) Starting the jack 2, feeding oil in a pump station in the jack 2, lifting a push rod 6 of the jack 2 for one stroke, and installing another standard section support 1 on the standard section support 1, wherein the standard section support 1 is distributed up and down;
(3) The pump station in the jack 2 returns oil, at this moment, the jacking frame 3 is limited on the uppermost standard joint support 1, the jacking rod 6 is limited, the jack 2 and the support frame 4 are integrally lifted, the cross beam 5 is upwards moved to the upper standard joint support 1, and the cross beam 5 is inserted below the support frame 4 to complete a stroke;
(4) Repeating the steps, synchronously lifting the net rack to the designated design height, and completing the installation work of the net rack.
The utility model has the same jacking operation on the net rack as the jacking operation adopted by the utility model patent of a net rack integral jacking installation device (the authorized bulletin number is CN 212743425U).
As shown in fig. 9 to 12, in a second embodiment of the present utility model,
Considering that the jacking frame body 7 has a certain height, the jacking rod 6 stretches into the jacking frame body 7 for a certain length at the moment, in order to increase the connection strength between the jacking frame body 7 and the jacking rod 6, two groups of mutually symmetrically arranged enclasping structures 25 are arranged on the bottom plate 13 on the basis of the structure based on the first embodiment, the enclasping structures 25 enclasping and fixing the jacking rod 6, the connection part of the jacking rod 6 and the jacking frame 3 is increased, the stability of the jacking frame 3 is improved, and the jacking frame 3 has better stress capability.
The enclasping structure 25 comprises a moving plate 26 and an enclasping plate 27, wherein the enclasping plate 27 is fixed on the moving plate 26, and an arc surface is arranged on the inner side of the enclasping plate 27 and used for enclasping the outer side of the push rod 6. The moving plate 26 is arranged at the bottom plate 13 and moves and adjusts towards the push rod 6 on the bottom plate 13, and is specifically designed in such a way that the bottom plate 13 is provided with a notch 30, 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 towards the push rod 6 in the notch 30, the threaded rod 28 is in threaded connection with a locking nut 29, and the locking nut 29 is locked at the bottom surface of the bottom plate 13. The situation that the holding plate 27 cannot support the push rod 6 due to the fact that a gap exists between the holding plate 27 and the push rod 6 is avoided, and the holding plate 27 and the push rod 6 are in tight contact.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.