CN215519936U

CN215519936U - Angle-adjustable jacking and angle-adjustable combined jacking

Info

Publication number: CN215519936U
Application number: CN202121714448.1U
Authority: CN
Inventors: 陈果毅; 杨志鹏; 黄浩伟; 张成林; 王靖; 刘宴; 郑金焕; 刘文飞
Original assignee: Shenzhen Construction Engineering Group Co Ltd
Current assignee: Shenzhen Construction Engineering Group Co Ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-14
Anticipated expiration: 2031-07-26

Abstract

The angle-adjustable jacking support and the angle-adjustable combined jacking support comprise a main corrugated contact piece, an angle adjusting mechanism and a height adjusting mechanism, wherein the angle adjusting mechanism is arranged on the height adjusting mechanism, and the angle adjusting mechanism comprises a mechanism capable of adjusting the elevation angle of the main corrugated contact piece. The angle adjusting mechanism comprises a rotary tray, a tray base, a vertical transfer block, an angle adjusting bolt and an angle adjusting nut, the rotary tray is fixed on the upper side face of the tray base, a first bolt hole is formed in the tray base, the central line of the first bolt hole is parallel to the upper side face fixed with the rotary tray, a second bolt hole is formed in the vertical transfer block, the angle adjusting bolt is inserted into the first bolt hole and the second bolt hole, and the angle adjusting nut is installed on the angle adjusting bolt. The height adjusting mechanism comprises a jacking screw rod and a jacking nut, the upper end of the jacking screw rod is connected with the angle adjusting mechanism, and the jacking nut is installed on the jacking screw rod. The shaping effect of the shaping template is good, the operation is simple and convenient, the efficiency is high, and the cost is low.

Description

Angle-adjustable jacking and angle-adjustable combined jacking

Technical Field

The utility model discloses a jacking capable of adjusting angles and a combined jacking capable of adjusting angles, and belongs to the technical field of beamless floor slab conical column caps and haunched plate formwork supporting tools.

Background

A flat slab without beam is a plate-column structure system, and features that the slab is directly supported by columns without beam and the load of floor is directly transferred to foundation via columns. Flat floors are commonly used in multi-storey industrial and residential buildings, such as shopping malls, refrigerators and warehouses.

The main difference between flat slabs and conventional ribbed slabs is that the slab load is transmitted directly to the foundation by the columns. The structure has simple force transmission and increases the floor clearance. But the slab is thicker because of the lack of primary and secondary beams, the reinforced concrete slab is supported directly on the columns.

The flat slab can be divided into two types, namely a flat slab and a flat slab. When the floor load is large, the beamless floor with column caps must be used to increase the bearing capacity and rigidity of the floor slab, so as to avoid the floor slab being too thick. One form of cap is a tapered cap.

In order to increase the load-bearing capacity of beams and panels of buildings, or to reinforce the seismic performance of beams and panels, armoring is performed. Haunching means that the area of two cross sections is increased at the corner of the whole structure, and the cross sections are generally made into a triangle and poured with the cross structure at the same time. The haunch plate is a form of haunch.

At present, in a formwork system of a conical column cap and an armpit of a beamless floor slab, a column hoop is generally formed by adopting a steel pipe and a right-angle fastener, and after a closed whole is formed, the column hoop is directly supported by utilizing an inclined strut to form a 'hanger shape' for reinforcement. The 'hanger shape' reinforcement construction method not only increases a large amount of labor and material costs, but also is difficult to be connected with a plate buckle frame formwork system into a whole; in addition, the reinforcing method of the shape of the hanging bracket has the advantages that the operation space in the plate buckling frame formwork system is narrow, the operation technical requirement on workers is high, the construction efficiency is low, the problems of slab staggering and formwork expansion after concrete pouring is finished are caused due to the fact that the fastening degree of bracing column hoops is low frequently, and the appearance quality of a concrete structure cannot reach the excellent standard easily.

Disclosure of Invention

Aiming at the problem that the fastening degree of the formwork system of the conical column cap and the haunching plate in the prior art is low, the utility model provides the angle-adjustable jacking support and the angle-adjustable combined jacking support, and the required fastening degree of the formwork system of the conical column cap and the haunching plate is ensured by arranging the main ridge contact element with the adjustable elevation angle and height. The main ridge contact element refers to a component which can be used for supporting a top support with an adjustable angle and is contacted with a main ridge of a shaping template of a concrete structure of a tapered column cap and an armpit. The shaping template refers to a shaping template of a concrete structure with a conical column cap and an armboard. The main edge of the utility model is used for reinforcing the secondary edge of the shaping template of the concrete structure of a tapered column cap and an armboard. The secondary edge of the utility model is used for reinforcing the shaping template of the concrete structure of the conical column cap and the haunching plate.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a can angle regulation's top support, can angle regulation's top support includes main stupefied contact, angle adjustment mechanism and height adjustment mechanism, angle adjustment mechanism sets up height adjustment mechanism is last, angle adjustment mechanism includes and can adjust the mechanism of the angle of elevation angle of main stupefied contact.

The technical scheme adopted by the utility model for solving the technical problem further comprises the following steps:

in order to match with the angle of the shaping template, the elevation angle of the main corrugated contact element needs to be adjusted, for this reason, the angle adjusting mechanism comprises a rotary tray, a tray base, a vertical transfer block, an angle adjusting bolt and an angle adjusting nut, the rotary tray is fixed on the upper side face of the tray base, a first bolt hole is formed in the tray base, the central line of the first bolt hole is parallel to the upper side face, on which the rotary tray is fixed, a second bolt hole is formed in the vertical transfer block, the angle adjusting bolt is inserted into the first bolt hole and the second bolt hole, and the angle adjusting nut is installed on the angle adjusting bolt.

In order to match with the height of the shaping template, the height of the main corrugated contact element needs to be adjusted, for this reason, the height adjusting mechanism comprises a jacking screw rod and a jacking nut, the upper end of the jacking screw rod is connected with the angle adjusting mechanism, and the jacking nut is installed on the jacking screw rod.

In order to guarantee the installation stability of height adjusting mechanism, the top holds in the palm the nut and is provided with the screw hole, be provided with the spacing groove on the terminal surface of top support nut, the terminal surface that is provided with the spacing groove with the screw hole central line is perpendicular, the size of spacing groove coincide with the size that is used for supporting the base of top support nut.

In order to avoid the main ridge contact from slipping out of the rotating tray, the rotating tray is U-shaped in cross-section.

In order to make the contact between the main ridge contact piece and the main ridge good, the main ridge contact piece is a steel pipe.

In order to guarantee the stability of the angle adjusting mechanism, the angle adjusting mechanism is provided with an anti-skidding rubber mat which is sleeved on the angle adjusting bolt.

In order to improve the efficiency, the combined jacking capable of adjusting the angle comprises two jacking capable of adjusting the angle, the two jacking are connected through a connecting rod, and main ridge contact elements of the two jacking are positioned on the same side of the connecting rod.

In order to ensure that the main ridge contact elements on the two jacking supports capable of adjusting the angle are in contact with the main ridge, the elevation angle of the connecting rod needs to be adjusted, and therefore the combined jacking support comprises a first jacking support and a second jacking support, a first transverse switching block is arranged between one end of the connecting rod and the first jacking support, the first transverse switching block is provided with a third bayonet and a third bolt hole, one end of the connecting rod is fixed in the third bayonet, and the third bolt hole is sleeved on an angle adjusting bolt of the first jacking support; the other end of connecting rod with the second pushes up and is provided with the horizontal switching piece of second between the support, the horizontal switching piece of second is provided with fourth bayonet socket and fourth bolt hole, the other end of connecting rod is fixed in the fourth bayonet socket, fourth bolt hole suit is in on the angle adjusting bolt that the second pushed up the support.

In order to match with the length of a main ridge, the length of the connecting rod needs to be adjusted, and for the purpose, the connecting rod comprises a branch connecting threaded rod, a branch connecting sleeve rod and a length adjusting nut, a cavity is arranged in the connecting sleeve rod in the length direction, one end of the branch connecting threaded rod is inserted into the cavity of the branch connecting sleeve rod, the length adjusting nut is provided with a threaded hole, threads are arranged on the branch connecting threaded rod, the thread size of the branch connecting threaded rod is matched with the size of the threaded hole, the length adjusting nut is installed on the branch connecting threaded rod, and the length adjusting nut is installed on the branch connecting sleeve rod.

The first and second jacks referred to in the present invention are two angle-adjustable jacks included in an angle-adjustable combination jack, and for convenience of description, one of the angle-adjustable jacks is referred to as a first jack, and the other angle-adjustable jack is referred to as a second jack. The upper side surface of the utility model refers to the side surface of the tray base facing the shaping template in the use process of the angle-adjustable jacking. The upper end of the utility model refers to one end of the top support capable of adjusting the angle, which faces the sizing template in the using process.

The utility model has the beneficial effects that: the angle of elevation and the height of the main edge contact element can be adjusted, the main edge contact element and a plate buckle frame formwork system are connected into a whole, the required fastening degree of the conical column cap and the formwork system of the haunched plate is ensured, the shaping effect of the shaping template is good, and slab staggering and formwork expansion after concrete pouring are avoided; the utility model has the advantages of large operation space, higher safety, low operation technical requirement on workers, high construction efficiency and reduced labor and material cost.

The utility model will be further described with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of a preferred embodiment of an angle adjustable jacking apparatus of the present invention;

FIG. 2 is a schematic view of an angle adjusting nut of a preferred embodiment of the angle adjustable jacking apparatus of the present invention;

FIG. 3 is a schematic view of a rotating tray of a preferred embodiment of the angle adjustable jacking of the present invention;

FIG. 4 is a schematic view of a vertical transition block of a preferred embodiment of the angle adjustable jacking of the present invention;

FIG. 5 is a schematic view of a first transverse transition block of a preferred embodiment of an adjustable angle jacking of the present invention;

FIG. 6 is a schematic view of a second transverse transition block of a preferred embodiment of the angle adjustable jacking of the present invention;

FIG. 7 is a schematic view of a jacking nut of a preferred embodiment of the jacking with adjustable angle of the present invention;

FIG. 8 is a schematic view of a jacking screw of a preferred embodiment of the jacking device capable of adjusting the angle of the present invention;

FIG. 9 is a schematic view of a preferred embodiment of the angle adjustable jacking non-slip rubber mat of the present invention;

FIG. 10 is a schematic view of an angle adjusting bolt of a preferred embodiment of the angle adjustable jacking of the present invention;

FIG. 11 is a schematic view of the connection of a preferred embodiment of an adjustable angle jacking of the present invention;

FIG. 12 is a schematic view of the assembly of the branch connecting threaded rod and branch connecting sleeve rod with the length adjusting nut of a preferred embodiment of the angle adjustable jacking of the present invention;

FIG. 13 is a schematic diagram of an application of a preferred embodiment of the angle adjustable jacking apparatus of the present invention.

Reference numerals: 1-top support screw rod, 2-top support nut, 3-vertical switching piece, 4-first horizontal switching piece, 5-main stupefied contact member, 6-rotatory tray, 7-angle adjusting bolt, 8-branch connecting threaded rod, 9-length adjusting nut, 10-branch connecting sleeve, 11-second horizontal switching piece, 12-angle adjusting nut, 13-anti-skidding cushion, 14-briquetting, 31-first bayonet socket, 32-second bolt hole, 41-third bayonet socket, 42-third bolt hole, 61-tray base, 62-first bolt hole, 81-connecting rod, 111-fourth bayonet socket, 112-fourth bolt hole.

Detailed Description

The present embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to the present embodiment are within the scope of the present invention.

A preferred embodiment of the angle-adjustable jacking of the present invention is shown in fig. 1 to 13, and comprises a main ridge contact 5, an angle adjusting mechanism and a height adjusting mechanism, wherein the angle adjusting mechanism is mounted on the height adjusting mechanism. The angle adjusting mechanism is used for adjusting the elevation angle of the main ridge contact piece 5 in contact with the main ridge, and the height adjusting mechanism is used for adjusting the height of the main ridge contact piece 5 in contact with the main ridge. The adjustment of the elevation angle and the height of the main edge contact part 5 contacted with the main edge ensures the fastening degree required by the formwork supporting system of the conical column cap and the haunching plate, and achieves the purpose of good shaping effect of the shaping formwork.

The main ridge contact 5 is placed on a rotating tray 6. The rotating tray 6 is made as follows: selecting a rectangular steel plate, wherein the size of the rectangular steel plate is determined according to the standard that a rotary tray 6 made of the rectangular steel plate can contain the main ridge contact piece 5; two long edges of the rectangular steel plate are bent towards the same direction to form two parallel convex edges, and the heights of the two convex edges are equal, so that the rotary tray 6 is in a groove shape, and the main corrugated contact piece 5 is prevented from sliding out of the rotary tray 6.

The main stupefied contact 5 adopts the steel pipe form, the reason is, the steel pipe is linear with the contact area of rotatory tray 6, and the steel pipe can roll on rotatory tray 6, and frictional force is little, and when the contact of main stupefied contact 5 and main stupefied is the one end contact of main stupefied contact 5, can form the moment of torsion, because of the main stupefied contact 5 of steel pipe form is little with the frictional force of rotatory tray 6, main stupefied contact 5 can be under the effect of moment of torsion automatic adjustment position for the one end contact of main stupefied contact 5 is improved, makes main stupefied contact 5 and the contact of main stupefied good.

The number of the steel pipes adopted by the main edge contact piece 5 in the same rotary tray 6 can be more than two, and the specific number of the steel pipes comprehensively considers the simplicity, the strength of the steel pipes, the strength of the main edge, the strength of the secondary edge, the strength of the shaping template and the supporting force required by the shaping template.

Because the main ridge contact element 5 is placed in the rotating tray 6, and the elevation angle of the rotating tray 6 is adjusted, the elevation angle of the contact between the main ridge contact element 5 and the main ridge can be adjusted, so that the good contact between the main ridge contact element 5 and the main ridge is ensured. To achieve adjustment of the elevation angle of the rotating tray 6, the following measures are taken.

The rotary tray 6 is provided with a tray base 61, the tray base 61 is made of a rectangular steel plate, the rotary tray 6 is fixed on the upper side face of the tray base 61, a first bolt hole 62 is formed in the tray base 61, and the central line of the first bolt hole 62 is parallel to the upper side face, on the tray base 61, of the rotary tray 6.

In order to connect the rotating tray 6 with the height adjusting mechanism, a vertical transfer block 3 is provided, and a second bolt hole 32 is provided on the vertical transfer block 3. The first bolt holes 62 on the tray base 61 and the second bolt holes 32 on the vertical joint block 3 are used for mounting the angle adjusting bolts 7, that is, the tray base 61 and the vertical joint block 3 are connected by the angle adjusting bolts 7. The vertical transfer block 3 is further provided with a first bayonet 31, and the vertical transfer block 3 is fixed on the height adjusting mechanism through the first bayonet 31. Install angle adjusting nut 12 on angle adjusting bolt 7, unscrew angle adjusting nut 12, make tray base 61 rotatory round angle adjusting bolt 7, tray base 61 will drive rotatory tray 6 rotatory round angle adjusting bolt 7, just can adjust the angle of elevation angle of rotatory tray 6, when reaching the good angle of contact of main stupefied contact 5 and main stupefied, screw up angle adjusting nut 12. The rotating tray 6 of the present embodiment is provided so as to be rotatable within a range of three hundred and twenty degrees about the angle-adjusting bolt 7.

In order to hold the form, the height of the main ridge contact 5 must also be adjusted, and height adjustment means are provided for this purpose. The height adjusting mechanism comprises a jacking screw rod 1 and a jacking nut 2, the upper end of the jacking screw rod 1 is fixed in a first bayonet 31 of the vertical transfer block 3, and the jacking nut 2 is screwed on the jacking screw rod 1. The jacking screw rod 1 is inserted into the pipe of the plate buckle frame formwork system, and the jacking nut 2 is placed on the end face of the pipe of the plate buckle frame formwork system. In the utility model, the pipe of the coil buckle frame formwork system is a base of the height adjusting mechanism, and the base supports the jacking nut 2. In order to ensure the installation stability of the height adjusting mechanism, a limit groove is arranged on the end surface of the jacking nut 2 facing the base, the end surface is perpendicular to the central line of the threaded hole of the jacking nut 2, the size of the limit groove is matched with the size of the base for supporting the jacking nut 2, and the limit groove enables the jacking nut 2 to be sleeved on the base for supporting the jacking nut 2.

In order to improve the efficiency, the two angle-adjustable jacking supports are adopted to form an angle-adjustable combined jacking support (hereinafter referred to as a combined jacking support), the two angle-adjustable jacking supports are connected through a connecting rod 81, and the main ridge contact piece 5 of the combined jacking support is positioned on the same side of the connecting rod 81. In the using process, the main ridge contact pieces 5 of the combined jacking are all in contact with the main ridge.

In order to ensure that the main ridge contact elements 5 of the combined jacking are all in contact with the main ridge, the elevation angle of the connecting rod 81 needs to be adjusted; the length of the connecting bar 81 needs to be adjusted in order to match the length of the main ridge. For this purpose, the following measures are taken.

The connecting rod 81 is set to be two-section type, one section is a branch connecting threaded rod 8, and the other section is a branch connecting sleeve rod 10. The branch connecting threaded rod 8 is provided with threads, and a cavity is formed in the branch connecting sleeve 10 in the length direction. One end of the branch connecting threaded rod 8 is inserted into a cavity of the branch connecting sleeve rod 10, the length adjusting nut 9 is provided with a threaded hole, the size of the threaded hole of the length adjusting nut 9 is matched with the size of the thread of the branch connecting threaded rod 8, the length adjusting nut 9 is screwed on the branch connecting threaded rod 8, one end of the branch connecting sleeve rod 10, which is filled into the branch connecting threaded rod 8, is connected to the length adjusting nut 9, and the length adjusting nut 9 can rotate on the branch connecting sleeve rod 10. One end of the branch connecting sleeve rod 10, which is installed into the branch connecting threaded rod 8, is called an insertion end for short. In order to realize the rotation, the measures are as follows: the length adjusting nut 9 is sleeved at the insertion end of the branch connecting loop bar 10; an annular sleeving hole is formed in a sleeving section of the length adjusting nut 9 (the sleeving section refers to the part, sleeved with the branch connecting sleeve rod 10, of the length adjusting nut 9), the annular sleeving hole is used for sleeving the branch connecting sleeve rod 10, and the center line of the annular sleeving hole is overlapped with the center line of a threaded hole of the length adjusting nut 9; an annular convex edge is arranged at the end part of a sleeved section of the branch connecting sleeve rod 10 (the sleeved section refers to the part of the branch connecting sleeve rod 10 positioned inside the length adjusting nut 9), the diameter of the annular convex edge is smaller than that of the annular sleeved hole, the thickness of the annular convex edge is smaller than the depth of the annular sleeved hole, and the central line of the annular convex edge is superposed with the central line of the branch connecting sleeve rod 10; the pressing block 14 is arranged at the sleeving section of the length adjusting nut 9 and the branch connecting sleeve rod 10, the pressing block 14 is annular, the pressing block 14 is in interference fit with the length adjusting nut 9, the pressing block 14 is in clearance fit with the branch connecting sleeve rod 10, the sum of the thickness of the pressing block 14 and the thickness of the annular convex edge is called total thickness, the total thickness is smaller than the depth of the annular sleeving hole, and the pressing block 14 is flush with the end face of the length adjusting nut 9 after being assembled. Thus, by turning the length adjustment nut 9, the branch connection threaded rod 8 will extend and contract in the cavity of the branch connection sleeve 10, and the length adjustment of the connection rod 81 is realized.

A transfer block is arranged between the connecting rod 81 and the first jacking and the second jacking. The transfer block has two, a first transverse transfer block 4 and a second transverse transfer block 11. The first transverse adapter block 4 is provided with a third bayonet 41 and a third bolt hole 42, and one end of the branch connecting threaded rod 8, which is located outside the cavity of the branch connecting sleeve rod 10, is fixed in the third bayonet 41. The second transverse adapter 11 is provided with a fourth bayonet 111 and a fourth bolt hole 112, and the opposite end of the branch connecting sleeve rod 10, which is provided with one end of the branch connecting threaded rod 8, is fixed in the fourth bayonet 111. The tray base 61 and the vertical transfer block 3 of the first jacking are connected with the first transverse transfer block 4 through the angle adjusting bolt 7 of the first jacking, and the angle adjusting bolt 7 is inserted in the first bolt hole 62, the second bolt hole 32 and the third bolt hole 42. The tray base 61 and the vertical transfer block 3 of the second jacking are connected with the second transverse transfer block 11 through the angle adjusting bolt 7 of the second jacking, and the angle adjusting bolt 7 is inserted in the first bolt hole 62, the second bolt hole 32 and the fourth bolt hole 112. The angle adjusting bolt 7 is provided with an angle adjusting nut 12, the angle adjusting nut 12 is unscrewed, the connecting rod 81 rotates around the angle adjusting bolt 7, the elevation angle of the connecting rod 81 can be adjusted, and when the angle of the main ridge contact piece 5 of the combined jacking is in contact with the main ridge is reached, the angle adjusting nut 12 is screwed down.

In order to guarantee the stability of angle adjustment mechanism, prevent that the elevation angle automatic change of rotatory tray 6 in the use, be provided with anti-skidding cushion 13 on angle adjustment mechanism, anti-skidding cushion 13 suit all is provided with anti-skidding cushion 13 on two angle adjusting bolt 7 on angle adjusting bolt 7, therefore this embodiment has two anti-skidding cushions 13. One end of the angle adjusting bolt 7 is provided with a hexagonal boss for being mutually clamped with a wrench, and the angle adjusting bolt is called a hexagonal head. One anti-slip rubber mat 13 is positioned between the hexagonal head and the first transverse transfer block 4, and the other anti-slip rubber mat 13 is positioned between the hexagonal head and the second transverse transfer block 11.

When the pipe-type connecting rod 81 is used, a pipe of a plate buckle frame formwork system to be inserted by the top support screw rod 1 is selected firstly, so that the main ridge contact piece 5 is perpendicular to the main ridge as much as possible, then the top support screw rod 1 is inserted into the selected pipe of the plate buckle frame formwork system, the top support nut 2 is sleeved on the end face of the pipe of the plate buckle frame formwork system, the main ridge contact piece 5 is placed between two convex edges on the rotating tray 6, then the top support nut 2 is screwed to adjust the height, the angle adjusting nut 12 is unscrewed, the connecting rod 81 rotates around the angle adjusting bolt 7, the elevation angle of the connecting rod 81 can be adjusted, then the tray base 61 rotates around the angle adjusting bolt 7, the elevation angle of the rotating tray 6 can be adjusted, and finally the angle adjusting nut 12 is screwed. The height adjustment and the elevation angle adjustment can be performed alternately to achieve the best adjustment effect.

In conclusion, the utility model has the advantages of good shaping effect of the shaping template, simple, convenient and safe operation, high construction efficiency and reduced labor and material cost.

Claims

1. The utility model provides a top that can angle regulation holds in palm which characterized in that: the jacking capable of adjusting the angle comprises a main corrugated contact element (5), an angle adjusting mechanism and a height adjusting mechanism, wherein the angle adjusting mechanism is arranged on the height adjusting mechanism, and the angle adjusting mechanism comprises a mechanism capable of adjusting the elevation angle of the main corrugated contact element (5).

2. An adjustable angle jacking as claimed in claim 1, wherein: the angle adjusting mechanism comprises a rotary tray (6), a tray base (61), a vertical transfer block (3), angle adjusting bolts (7) and angle adjusting nuts (12), the rotary tray (6) is fixed on the upper side face of the tray base (61), first bolt holes (62) are formed in the tray base (61), the central line of each first bolt hole (62) is parallel to the upper side face fixed with the rotary tray (6), second bolt holes (32) are formed in the vertical transfer block (3), the angle adjusting bolts (7) are inserted into the first bolt holes (62) and the second bolt holes (32), and the angle adjusting nuts (12) are installed on the angle adjusting bolts (7).

3. An adjustable angle jacking as claimed in claim 1, wherein: the height adjusting mechanism comprises a jacking screw rod (1) and a jacking nut (2), the upper end of the jacking screw rod (1) is connected with the angle adjusting mechanism, and the jacking nut (2) is installed on the jacking screw rod (1).

4. An adjustable angle jacking as claimed in claim 3, wherein: the jacking nut (2) is provided with a threaded hole, a limiting groove is formed in one end face of the jacking nut (2), the end face provided with the limiting groove is perpendicular to the central line of the threaded hole, and the size of the limiting groove is matched with the size of a base used for supporting the jacking nut (2).

5. An adjustable angle jacking as claimed in claim 2, wherein: the cross section of the rotary tray (6) is U-shaped.

6. An adjustable angle jacking as claimed in claim 1, wherein: the main edge contact piece (5) is a steel pipe.

7. An adjustable angle jacking as claimed in claim 2, wherein: the angle adjusting mechanism is provided with an anti-skidding rubber mat (13), and the anti-skidding rubber mat (13) is sleeved on the angle adjusting bolt (7).

8. The utility model provides a combined top that can angle regulation holds in palm which characterized in that: comprising two angle-adjustable jacking as claimed in any one of claims 1 to 7, the two jacking being connected by a connecting bar (81), the main edge contacts (5) of the two jacking being located on the same side of the connecting bar (81).

9. The angle-adjustable combination jacking according to claim 8, wherein: the combined jacking comprises a first jacking and a second jacking, a first transverse transfer block (4) is arranged between one end of the connecting rod (81) and the first jacking, the first transverse transfer block (4) is provided with a third bayonet (41) and a third bolt hole (42), one end of the connecting rod (81) is fixed in the third bayonet (41), and the third bolt hole (42) is sleeved on an angle adjusting bolt (7) of the first jacking; the other end of connecting rod (81) with the second pushes up and is provided with horizontal switching piece (11) of second between the support, the horizontal switching piece (11) of second is provided with fourth bayonet socket (111) and fourth bolt hole (112), the other end of connecting rod (81) is fixed in fourth bayonet socket (111), fourth bolt hole (112) suit is in on angle adjusting bolt (7) that the second pushed up the support.

10. The angle-adjustable combination jacking according to claim 8, wherein: connecting rod (81) are including branch connecting rod (8), branch connecting rod (10) and length adjustment nut (9), the inside of connecting rod (10) is provided with the cavity on length direction, the one end cartridge of branch connecting rod (8) is in branch connecting rod's (10) cavity, length adjustment nut (9) are provided with the screw hole, be provided with the screw thread on branch connecting rod (8), the thread size of branch connecting rod (8) with the size of screw hole coincide, length adjustment nut (9) are installed on branch connecting rod (8), length adjustment nut (9) are installed on branch connecting rod (10).