CN212130024U - Support that building engineering used - Google Patents

Abstract

The utility model discloses a support that building engineering used has seted up the dovetail respectively in the bottom position that the base is close to both ends, and the forked tail has been seted up respectively to first supporting seat, second supporting seat upper surface, and dovetail and forked tail cooperation are connected. A supporting rod is arranged between the first supporting seat and the second supporting seat, and the middle part of the supporting rod is hinged with the base through a hinged piece. The first supporting seat is far away from one side of bracing piece and has been seted up the connection notch, and one side fixedly connected with connecting plate of bracing piece is kept away from to the second supporting seat, and the connecting plate suits with the connection notch size to be connected. The support for the building engineering can realize the connection of a plurality of supports, realize the serial use of the plurality of supports and meet the requirements of different heights for supporting; especially, the adjacent supports can be conveniently supported at different heights, the supporting steps can be quickly built, construction workers can conveniently carry to high-position construction operation, and particularly, the carrying construction can be conveniently carried. The storage of the supporting rods is facilitated, and the occupied space of carrying and storage is reduced.

Description

Support that building engineering used

Technical Field

The utility model relates to a fixed building construction tool or building auxiliary assembly structural design technical field especially relate to a support that building engineering used.

Background

The support for the building engineering is mainly determined by the support form of a plate-beam structure, and mainly aims at the inconvenience of warehousing large-area concrete workers by adopting mechanical equipment and the like. The support is a frame used for fixing various templates in building construction. When concrete is poured, the templates are prevented from moving, and the function of the support is very important. The support is not firm, and the accidents of die running and even collapse can occur. The supports are not provided with quick connecting parts, the traditional connecting mode can be only adopted, time and labor are consumed, and the connecting stability is not enough.

In order to meet the requirement of rapid construction, the construction at different heights is carried out. In the prior art, the steel pipe which is usually simple to use is built to form the step, but the building process is complicated, the disassembly is inconvenient, the construction period is influenced, a plurality of occasion constructors choose to give up building, the construction workers are influenced, and the labor intensity is increased.

Therefore, the building supports in the prior art are inconvenient to connect with each other, and the application range is limited; and the step is built to the express delivery also inconvenient realization, leads to constructor intensity of labour big, the inconvenient defect of using.

SUMMERY OF THE UTILITY MODEL

In view of the above, the main object of the present invention is to provide a support device that can realize the connection of a plurality of supports and satisfy the requirements of different heights of supports; the supporting steps are quickly built, so that construction workers can conveniently go to a higher position for construction operation; the support that the building engineering that has made things convenient for the storage of bracing piece reduces transport and storage occupation space used.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a bracket for construction work, comprising: the supporting seat, the base, the lifting frame and the supporting plate; the crane is connected to the base upside, crane upside joint support board, joint support seat can be dismantled to the base bottom.

In a preferred embodiment, the support seat comprises: the support device comprises a first support seat, a second support seat and a support rod; dovetail grooves are respectively formed in the bottom positions, close to the two end portions, of the base, dovetail tenons are respectively formed in the upper surfaces of the first supporting seat and the second supporting seat, and the dovetail grooves are connected with the dovetail tenons in a matched mode; the opening directions of the dovetail groove and the dovetail joint are perpendicular to the length direction of the base.

In a preferred embodiment, a support rod is arranged between the first support seat and the second support seat, and the middle part of the support rod is hinged with the base through a hinge.

In a preferred embodiment, the hinge comprises: a connecting disc and a connecting column; the base bottom has seted up the disc chamber, the disc chamber suits with the connection pad size, spliced pole upper end and connection pad fixed connection.

In a preferred embodiment, the connecting column penetrates through the supporting rod, and the connecting column is fixedly connected with the supporting rod; the connecting disc is in supporting connection with the inner part of the disc cavity.

In a preferred embodiment, a connecting notch is formed in one side, away from the supporting rod, of the first supporting seat, and a connecting plate is fixedly connected to one side, away from the supporting rod, of the second supporting seat, and the connecting plate is connected with the connecting notch in a size-adaptive manner.

In a preferred embodiment, run through the cell wall of connecting the notch has seted up first hinge hole, runs through the second hinge hole has been seted up to the connecting plate, passes first hinge hole and second hinge hole are equipped with the hinge bar, and the spacing hole has been seted up to the first supporting seat of perpendicular to, spacing hole link up first hinge hole runs through the hinge bar has seted up the fixed orifices with the position that spacing hole corresponds spacing hole and the inside bolt connection of fixed orifices has the gag lever post.

In a preferred embodiment, a screw groove is formed in the upper side of the base, a screw is arranged in the screw groove, a driving motor is arranged at one end of the screw groove, and the output end of the driving motor is connected with the screw in a driving mode.

In a preferred embodiment, the screw comprises: the first driving part and the second driving part are fixedly connected, and the rotating directions of the threaded raceways of the first driving part and the second driving part are opposite;

the crane includes: two driving seats and two lifting rods;

the first driving part and the second driving part are respectively in driving connection with a driving seat, the upper side of the driving seat is hinged with the lifting rod, and the upper end of the lifting rod is hinged with the supporting plate.

In a preferred embodiment, each said lifter bar section comprises: the supporting frame comprises a left rod and a right rod, the lower end portions of the left rod and the right rod are fixedly connected, the upper end portions of the left rod and the right rod are integrally formed with supporting frames, the upper sides of the supporting frames are hinged to supporting plates, and the left rod, the right rod and the supporting frames are enclosed into an isosceles triangle structure.

In a preferred embodiment, the lifting rod is a telescopic rod, the upper end of which is hinged to the support plate.

In a preferred embodiment, the telescopic rod comprises: the lower end of the rod part is hinged with the driving seat, the upper end of the rod part is connected with the cylinder part in a telescopic mode, two sides of the outer wall of the cylinder part are respectively and fixedly connected with an auxiliary rod, the upper end of the auxiliary rod is fixedly connected with a supporting frame, and the upper end of the cylinder part is fixedly connected with the supporting frame; the upper side of the support frame is hinged with the support plate.

In a preferred embodiment, the crane further comprises: the lower end part of the directional telescopic rod is fixedly connected with the base, and the upper end part of the directional telescopic rod is hinged with the supporting plate;

in a preferred embodiment, the directional expansion link comprises: the inner cylinder is sleeved inside the outer cylinder, the upper end of the outer cylinder is hinged to the bottom of the supporting plate, and the lower end of the inner cylinder is fixedly connected with the base.

In a preferred embodiment, end limiting blocks are arranged at the bottom of the screw groove near two end portions.

In a preferred embodiment, two middle limiting blocks are symmetrically arranged in the middle of the bottom of the screw groove.

In a preferred embodiment, the upper end of the lifting rod is hinged to the support plate near both ends.

The utility model discloses a support that building engineering used has following beneficial effect:

this support that building engineering used, the supporting seat includes: the support device comprises a first support seat, a second support seat and a support rod; dovetail grooves are respectively formed in the bottom positions of the base, which are close to the two end portions, the upper surfaces of the first supporting seat and the second supporting seat are respectively provided with a dovetail joint, and the dovetail grooves are connected with the dovetail joints in a matched mode; the opening directions of the dovetail groove and the dovetail joint are perpendicular to the length direction of the base. A supporting rod is arranged between the first supporting seat and the second supporting seat, and the middle part of the supporting rod is hinged with the base through a hinged piece. The disc cavity is formed in the bottom of the base of the hinged piece and is matched with the connecting disc in size, and the upper end portion of the connecting column is fixedly connected with the connecting disc. The first supporting seat is far away from one side of bracing piece and has been seted up the connection notch, and one side fixedly connected with connecting plate of bracing piece is kept away from to the second supporting seat, and the connecting plate suits with the connection notch size to be connected. First hinge hole has been seted up to the cell wall of through connection notch, and the second hinge hole has been seted up to the through connection board, passes first hinge hole and second hinge hole and is equipped with the hinge bar, and spacing hole has been seted up to the first supporting seat of perpendicular to, and spacing hole link up first hinge hole, the fixed orifices has been seted up with the position that spacing hole corresponds to through the hinge bar, has the gag lever post at spacing hole and the inside bolt connection of fixed orifices.

The defects that in the prior art, a plurality of supports cannot be connected in series for use, and a single support cannot meet supporting requirements are overcome. And in the prior art, the support structure is complex, the occupied space is large, the storage and the transportation are not convenient, and the construction cost is further increased.

According to the support for the building engineering, the support can be connected in series through the support seats, so that the support can be used in series, and the requirements of different heights for supporting can be met; especially, the adjacent supports can be conveniently supported at different heights, the supporting steps can be quickly built, construction workers can conveniently carry to high-position construction operation, and particularly, the carrying construction can be conveniently carried. The supporting rods are hinged between the supporting seats, and the supporting rods are connected in a rotating mode, so that the supporting rods are convenient to store, and the occupied space for carrying and storing is reduced; the bracing piece is rotatory to be stretched out, can be to the steady supporting role of whole support, and then guarantees that the stable operation of support is used.

Drawings

Fig. 1 is a schematic structural view of a bracket for construction work according to an embodiment of the present disclosure;

fig. 2 is a partial cross-sectional view of the bracket for construction work shown in fig. 1 according to an embodiment of the present disclosure;

FIG. 3 is a top view of the bracket for construction shown in FIG. 1 according to one embodiment of the present disclosure;

FIG. 4 is a top view of the bracket for construction work shown in FIG. 3 without a support plate installed thereto according to one embodiment of the present disclosure;

fig. 5 is a schematic structural view of a hinge rod of a bracket for construction work according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a bracket for construction work according to another embodiment of the present disclosure;

fig. 7 is a partial sectional view of the bracket for construction work shown in fig. 6 according to an embodiment of the present disclosure.

[ description of main reference symbols ]

1. The supporting seat 11, the first supporting seat 12, the second supporting seat 13, the supporting rod 14 and the dovetail joint;

15. a hinge, 151, a connecting disc, 152, a connecting column;

16. the connecting groove opening 17, the connecting plate 18, the first hinge hole 19, the second hinge hole 20 and the limiting hole;

2. the screw rod mechanism comprises a base 21, a screw rod groove 22, an end limiting block 23 and a middle limiting block;

3. a lifting frame 31 and a driving seat;

32. a lifting rod;

321. a left rod 322, a right rod 323 and a support frame;

324. a rod portion 325, a barrel portion;

33. an orientation telescopic rod 331, an inner cylinder, 332 and an outer cylinder;

4. a support plate;

5. a hinge rod 51, a fixing hole;

6. a screw 61, a first drive unit 62, and a second drive unit;

7. the motor is driven.

Detailed Description

The present invention provides a support for construction engineering, which is described in detail below with reference to the accompanying drawings and embodiments of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the bracket for construction work includes: the supporting seat 1 with the supporting role between the ground, the base 2 of connecting supporting seat 1 and crane 3, the crane 3 which supports the supporting plate 4 and adjusts the height of the supporting plate 4 and the supporting plate 4 which mainly plays the supporting role of the bracket. The lifting frame 3 is connected to the upper side of the base 2, the lifting frame 3 is connected to the upper side of the supporting plate 4, and the connection supporting seat 1 can be detached from the bottom of the base 2.

Preferably, the support seat 1 comprises: a first supporting seat 11 and a second supporting seat 12 for supporting; and a support rod 13 for ensuring that the whole base 2 can be supported on the ground in a balanced manner. In order to facilitate the connection between the supporting seat 1 and the base 2 and the supporting effect on the base 2, dovetail grooves are respectively formed at the bottom positions of the base 2 close to the two end parts, dovetail joints 14 are respectively formed on the upper surfaces of the first supporting seat 11 and the second supporting seat 12, and the dovetail grooves are connected with the dovetail joints 14 in a matched mode; the opening direction of the dovetail groove and the dovetail 14 is vertical to the length direction of the base 2; the supporting seat 1 and the base 2 are guaranteed not to slide in the length direction of the base 2, and therefore the plurality of supports can be connected through the supporting seat 1, and interaction among the supports can be met; particularly when the support can be supported at a higher height, the support can be connected through a plurality of brackets; further, when the support supports constructors and arrives a take the altitude work progress, especially, need the manual work to move article to the high position time, can be through establishing a plurality of supports in series, build the step fast, make things convenient for constructors to construct and use.

In order to facilitate the rotation of the supporting rod 13, a cross supporting bottom is formed between the supporting rod 13 and the base, so that the supporting stability of the base 2 is ensured. The support rod 13 is disposed between the first support seat 11 and the second support seat 12. In order to facilitate the support rod 13 to be accommodated inside the base 2, the middle part of the support rod 13 is hinged with the base 2 through a hinge 15; realize that bracing piece 13 is rotatory for base 2, and then accomodate base 2 in base 2 bottom, when using, relative rotation between bracing piece 13 and the base 2, the preferred perpendicular setting with base length direction guarantees the position of the balanced base 2 of bracing piece 13, guarantees the stability of whole support.

To facilitate the connection between the hinge 15 and the base 2, the hinge 15 comprises: a connecting disc 151 with limiting function and a connecting column 152 connected with the supporting rod 13; a disc cavity is formed in the bottom of the base 2, the disc cavity is matched with the connecting disc 151 in size, and the upper end of the connecting column 152 is fixedly connected with the connecting disc 151. The disc cavity and the connecting disc 151 are both of disc structures, so that the hinged part 15 can rotate in the disc cavity, the supporting rod 13 can rotate relative to the base 2, and the functions of storing and rotating out the supporting rod 13 are achieved.

In order to ensure the connection strength between the connection column 152 and the support rod 13, the connection column 152 penetrates through the support rod 13, and the connection column 152 is fixedly connected with the support rod 13. Of course, in order to realize the limiting supporting function of the connecting disc 151 on the supporting rod 13, the connecting disc 151 is in supporting connection with the inside of the disc cavity.

The support has the advantages that the connection between the adjacent supports is facilitated, the application range of the support is ensured, and the support function is better. One side of the first supporting seat 11 far away from the supporting rod 13 is provided with a connecting notch 16, one side of the second supporting seat 12 far away from the supporting rod 13 is fixedly connected with a connecting plate 17, and the connecting plate 17 is in size adaptive connection with the connecting notch 16.

Namely: the groove wall of the through connection notch 16 is provided with a first hinge hole 18, and the through connection plate 17 is provided with a second hinge hole 19 (the first hinge hole 18 and the second hinge hole 19 are both in the horizontal plane, and the axial direction of the first hinge hole 18 and the second hinge hole 19 is perpendicular to the length direction of the base 2). The hinge rod 5 is provided through the first hinge hole 18 and the second hinge hole 19 to realize the serial connection between the adjacent brackets through the connection between the connection plate 17 and the connection notch 16. In order to ensure the connection strength between the first hinge hole 18, the second hinge hole 19 and the hinge rod 5, a limiting hole 20 is formed perpendicular to the first support seat 11, the limiting hole 20 penetrates through the first hinge hole 18, a fixing hole 51 is formed in a position corresponding to the limiting hole 20 and penetrating through the hinge rod 5, and a limiting rod is connected to the inner parts of the limiting hole 20 and the fixing hole 51 in a plug-in manner; the hinge rod 5 is fixed in a limiting mode through the limiting rod, the connection strength of the hinge rod 5 is guaranteed, and then connection between adjacent supports is achieved.

In order to conveniently drive the lifting frame 3 to lift, a screw groove 21 is formed in the upper side of the base 2, a screw 6 for driving lifting operation is arranged in the screw groove 21, a driving motor 7 is arranged at one end of the screw groove 21, and the output end of the driving motor 7 is connected with the screw 6 in a driving mode. Through the rotary motion of lead screw 6, promote the lift of crane 3, guarantee that whole drive process area occupied is latest, can play the effect of stable drive again.

In order to further guarantee the support stability to backup pad 4, and then guarantee the steady of lift operation process, this lead screw 6 includes: the first driving part 61 and the second driving part 62 are fixedly connected, and the rotation directions of the threaded raceways of the first driving part 61 and the second driving part 62 are opposite; the screw 6 (including the first driving part 61 and the second driving part 62) driven by one driving motor is ensured to rotate along one direction, the driving seats 31 on the upper sides of the first driving part 61 and the second driving part 62 can be pushed to slide along the opposite direction, and then the supporting plate 4 can be lifted or lowered.

Of course, in order to be compatible with the first drive 61 and the second drive 62, the crane 3 comprises: two pieces of driving seats 31 and two pieces of lifting rods 32.

The first driving part 61 and the second driving part 62 are respectively connected with the driving seat 31 in a driving way, the upper side of the driving seat 31 is hinged with the lifting rod 32, and the upper end of the lifting rod 32 is hinged with the supporting plate 4. The screw 6 drives the driving seat 31, and the driving seat 31 drives the lifting rod 32 to push the supporting plate 4 to lift.

In order to ensure a more stable support of the lifting rod 32 to the support plate 4, each lifting rod 32 comprises: the lower ends of the left rod 321 and the right rod 322 are fixedly connected, the upper ends of the left rod 321 and the right rod 322 are integrally formed with a support frame 323, the upper side of the support frame 323 is hinged with the support plate 4, and the left rod 321, the right rod 322 and the support frame 323 enclose an isosceles triangle structure; the fixing area between the supporting plate 4 and the supporting plate is increased, and the supporting strength and the stability are improved.

In another embodiment, as shown in fig. 6 and 7, in order to ensure a wider lifting area, the lifting rod 32 is a telescopic rod, the upper end of which is hinged to the support plate 4.

Further, also, in order to ensure the stability of the supporting connection to the supporting plate 4. This telescopic link includes: a rod portion 324 having a telescopic function and a cylinder portion 325. The lower end of the rod portion 324 is hinged with the driving seat 31, and the upper end of the rod portion 324 is telescopically connected with the cylinder portion 325. In order to support the support plate 4 stably, two sides of the outer wall of the cylinder portion 325 are fixedly connected with auxiliary rods (the function of the auxiliary rods is similar to that of the left rod and the right rod in the previous embodiment), the upper end of each auxiliary rod is fixedly connected with a support frame 323, and the upper end of the cylinder portion 325 is fixedly connected with the support frame 323; the upper side of the supporting frame 323 is hinged with the supporting plate 4.

In a preferred embodiment, as shown in fig. 1, 2, 3, 4, 5, 6 and 7, the

The crane 3 further comprises: the directional telescopic rod 33 of directional support positioning action, the lower tip and the base 2 fixed connection of directional telescopic rod 33, the upper end of directional telescopic rod 33 is articulated with backup pad 4, the angle of regulation backup pad that can be convenient guarantees the flexibility of using.

Specifically, the directional expansion link 33 includes: inner tube 331 and urceolus 332, inner tube 331 cover is established in urceolus 332, and urceolus 332 upper end is articulated with backup pad 4 bottom, and inner tube 331 lower extreme and base 2 fixed connection. Not only can guarantee the limiting function, but also can meet the requirement of following the lifting of the supporting plate 4.

In order to guarantee the limitation of the stroke of the driving seat 31, the safe operation of the screw 6 driving the driving seat 31 is guaranteed. End limiting blocks 22 are arranged at the bottom of the screw groove 21 and close to the two end parts. Two middle limiting blocks 23 are symmetrically arranged in the middle of the bottom of the screw groove 21. The middle limiting block 23 is positioned at two sides of the midpoint of the screw groove 21. The end stoppers 22 and the middle stopper 23 can ensure that the lifting rod 32 is at the highest point or the lowest point (the highest point or the lowest point depending on the connection position of the lifting rod 32 at the bottom of the support plate 4) for supporting the support plate 4.

In order to support the supporting plate 4 more stably (i.e. when the supporting plate 4 is in operation) when the supporting plate 4 is lifted, the upper end of the lifting rod 32 is hinged to the supporting plate 4 near the two ends.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. A support for construction work, comprising: the device comprises a supporting seat (1), a base (2), a lifting frame (3) and a supporting plate (4); the upper side of the base (2) is connected with a lifting frame (3), the upper side of the lifting frame (3) is connected with a supporting plate (4), and the bottom of the base (2) is detachably connected with a supporting seat (1);

the supporting seat (1) comprises: a first supporting seat (11), a second supporting seat (12) and a supporting rod (13); dovetail grooves are respectively formed in the bottom positions, close to the two end portions, of the base (2), dovetail tenons (14) are respectively formed in the upper surfaces of the first supporting seat (11) and the second supporting seat (12), and the dovetail grooves are connected with the dovetail tenons (14) in a matched mode; the opening direction of the dovetail groove and the dovetail (14) is vertical to the length direction of the base (2);

a supporting rod (13) is arranged between the first supporting seat (11) and the second supporting seat (12), and the middle part of the supporting rod (13) is hinged with the base (2) through a hinge piece (15);

the hinge (15) comprises: a connecting disc (151) and a connecting column (152); a disc cavity is formed in the bottom of the base (2), the size of the disc cavity is matched with that of the connecting disc (151), and the upper end of the connecting column (152) is fixedly connected with the connecting disc (151);

the connecting column (152) penetrates through the supporting rod (13), and the connecting column (152) is fixedly connected with the supporting rod (13); the connecting disc (151) is in supporting connection with the inner part of the disc cavity;

a connecting notch (16) is formed in one side, away from the supporting rod (13), of the first supporting seat (11), a connecting plate (17) is fixedly connected to one side, away from the supporting rod (13), of the second supporting seat (12), and the connecting plate (17) is connected with the connecting notch (16) in a size-adaptive manner;

run through first hinge hole (18) have been seted up to the cell wall of connecting notch (16), run through second hinge hole (19) have been seted up in connecting plate (17), pass first hinge hole (18) and second hinge hole (19) are equipped with hinge bar (5), and spacing hole (20) have been seted up in the first supporting seat of perpendicular to (11), spacing hole (20) link up first hinge hole (18) run through fixed orifices (51) have been seted up to hinge bar (5) and the position that spacing hole (20) correspond spacing hole (51) spacing hole (20) and fixed orifices (51) inside bolt connection have the gag lever post.

2. The support for the constructional engineering as recited in claim 1, wherein a screw groove (21) is formed in an upper side of the base (2), a screw (6) is disposed in the screw groove (21), a driving motor (7) is disposed at one end of the screw groove (21), and an output end of the driving motor (7) is connected with the screw (6) in a driving manner.

3. Support for construction work according to claim 2, characterised in that said screw (6) comprises: the driving device comprises a first driving part (61) and a second driving part (62), wherein the first driving part (61) and the second driving part (62) are fixedly connected, and the rotating directions of the threaded raceways of the first driving part (61) and the second driving part (62) are opposite;

the crane (3) comprises: two driving seats (31) and two lifting rods (32);

the first driving part (61) and the second driving part (62) are respectively in driving connection with a driving seat (31), the upper side of the driving seat (31) is hinged with the lifting rod (32), and the upper end of the lifting rod (32) is hinged with the supporting plate (4).

4. A support for construction work according to claim 3, characterised in that each of said lifting lever (32) subsections comprises: left pole (321) and right pole (322), tip fixed connection under left pole (321) and right pole (322), left side pole (321) and right pole (322) upper end integrated into one piece have support frame (323), support frame (323) upside is articulated with backup pad (4), left pole (321), right pole (322) and support frame (323) enclose into the isosceles triangle structure.

5. A support for construction work according to claim 3, characterised in that the lifting bar (32) is a telescopic bar, the upper end of which is hinged to the support plate (4).

6. A support for construction engineering according to claim 5, wherein the telescopic rod comprises: the lower end of the rod part (324) is hinged with the driving seat (31), the upper end of the rod part (324) is connected with the cylinder part (325) in a telescopic mode, two sides of the outer wall of the cylinder part (325) are fixedly connected with auxiliary rods respectively, the upper end of each auxiliary rod is fixedly connected with a supporting frame (323), and the upper end of the cylinder part (325) is fixedly connected with the supporting frame (323); the upper side of the support frame (323) is hinged with the support plate (4).

7. A trestle for construction work according to any one of claims 3-6, characterised in that the crane (3) further comprises: the lower end part of the directional telescopic rod (33) is fixedly connected with the base (2), and the upper end part of the directional telescopic rod (33) is hinged with the support plate (4);

the directional expansion rod (33) comprises: inner tube (331) and urceolus (332), inner tube (331) cover is established inside urceolus (332), urceolus (332) upper end is articulated with backup pad (4) bottom, inner tube (331) lower tip and base (2) fixed connection.

8. The bracket for construction engineering according to claim 3, wherein end stoppers (22) are provided at the bottom of the screw groove (21) near both ends.

9. The bracket for constructional engineering as claimed in claim 3, wherein two middle limiting blocks (23) are symmetrically arranged at the middle of the bottom of the screw groove (21).

10. A support for construction work according to claim 3, characterised in that the upper end of the lifting rod (32) is hinged to the support plate (4) near both ends.

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