Telescopic formwork lifting point beam device and construction method thereof

Abstract

The invention provides a telescopic formwork lifting point beam device and a construction method thereof. The telescopic formwork lifting point beam device comprises a telescopic beam, a sleeve, a buckle and a telescopic drawing assembly. The clamping buckles are installed on the outer wall of the sleeve in pairs, a plurality of pairs of clamping buckles are arranged on the sleeve at intervals, a sleeving gap is formed between each pair of clamping buckles, the sleeve can be connected to a steel beam of a creeping formwork or a steel platform frame body in a matched and sleeving mode through the sleeving gaps of the clamping buckles and is locked and fixed, and the sleeve is detachably installed on the creeping formwork or the steel platform frame body. One end of the telescopic beam is telescopically inserted into the sleeve, and the other end of the telescopic beam extends out of the sleeve; one end of the telescopic drawing assembly is connected to the telescopic beam, and the other end of the telescopic drawing assembly extends to the position below the sleeve. The invention relates to the technical field of building construction, and can solve the problems that in the prior art, a template lifting point beam is inflexible in arrangement position and cannot be telescopically adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a telescopic formwork lifting point beam device and a construction method thereof. BACKGROUND

[0002] The whole steel platform formwork is a professional formwork system suitable for super high concrete structure construction, and is widely used in the construction of domestic super high concrete structures. The formwork system is an important part of the whole steel platform formwork, and the setting of the formwork lifting point beam is a factor affecting the construction safety and the construction safety.

[0003] The setting position of the formwork lifting point beam of the prior art is not flexible, cannot be telescopic adjusted, is easy to collide during the formwork lifting process, and causes damage to the formwork, and greatly affects the steel bar installation and lifting operation. Therefore, it is necessary to provide a telescopic formwork lifting point beam device and a construction method thereof, which can solve the problem of the non-flexible setting position of the formwork lifting point beam in the prior art and the telescopic adjustment problem. SUMMARY

[0004] The purpose of the present application is to provide a telescopic formwork lifting point beam device and a construction method thereof, which can solve the problem of the non-flexible setting position of the formwork lifting point beam in the prior art and the telescopic adjustment problem.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A telescopic formwork lifting point beam device, comprising: a telescopic beam, a sleeve, a buckle and a telescopic pulling assembly; the buckles are installed in pairs on the outer wall of the sleeve, a plurality of pairs of buckles are arranged at intervals on the sleeve, a sleeve joint gap is formed between each pair of buckles, the sleeve can be matched and sleeved on the steel beam of the climbing formwork or the steel platform frame body through the sleeve joint gap of the buckle and locked and fixed, so that the sleeve is detachably installed on the climbing formwork or the steel platform frame body; one end of the telescopic beam is telescopically inserted into the sleeve, and the other end of the telescopic beam extends to the outside of the sleeve; one end of the telescopic pulling assembly is connected to the telescopic beam, and the other end of the telescopic pulling assembly extends below the sleeve.

[0007] The height of the telescopic beam is less than the internal height of the sleeve, a supporting wheel is arranged on the inner wall of the bottom of the sleeve, and the supporting wheel is in rolling contact with the bottom of the telescopic beam, so that one end of the telescopic beam is telescopically inserted into the sleeve.

[0008] The top of the sleeve is formed with a notch, a cover plate is installed on the top outer wall of the sleeve, a compression wheel is installed on the cover plate through a closed compression wheel seat, the bottom of the compression wheel penetrates through the notch and abuts against the telescopic beam, and the top surface of the telescopic beam is in rolling contact with the compression wheel when the telescopic beam is telescoped.

[0009] The vertical section of the buckle is installed on the sleeve pipe, the horizontal section of the buckle is formed with a transverse gap between the bottom of the horizontal section and the sleeve pipe, the horizontal section end of the pair of buckles is formed with a vertical gap, and the transverse gap and the vertical gap between the pair of buckles and the sleeve pipe form a sleeve joint gap; the lower flange of the steel beam is matched and clamped in the transverse gap, and the horizontal section end of the buckle is provided with a jacking bolt which can be jacked on the web of the steel beam.

[0010] The telescopic pulling assembly comprises a pulling rope fixing part, a pulling rope fixing shaft, a redirecting pulley, an extension seat, a movable pulley, a first pulling rope and a second pulling rope; the two pulling rope fixing parts are respectively installed at the two ends of the bottom of the sleeve pipe, and the pulling rope fixing shaft and the redirecting pulley are installed on each pulling rope fixing part; the upper end of the extension seat is fixedly installed at the bottom of the telescopic beam, the bottom of the sleeve pipe is formed with a limiting sliding groove, the lower end of the extension seat penetrates through the bottom of the sleeve pipe through the limiting sliding groove, the extension seat is located between the two redirecting pulleys, and the two movable pulleys are respectively installed at the lower end of the extension seat; one end of the first pulling rope is fixed on the pulling rope fixing shaft at one end of the sleeve pipe, the other end of the first pulling rope naturally drops after passing through one movable pulley and one redirecting pulley close to one end of the sleeve pipe, one end of the second pulling rope is fixed on the pulling rope fixing shaft at the other end of the sleeve pipe, and the other end of the second pulling rope naturally drops after passing through the other movable pulley and the other redirecting pulley close to the other end of the sleeve pipe.

[0011] The inner wall of the sleeve pipe is formed with two anti-falling supporting plates at intervals, and the extension seat is movably arranged between the two anti-falling supporting plates.

[0012] The other end of the telescopic beam is provided with a lifting lug, the lifting lug is located on the outer side of the sleeve pipe, and a hoisting device is connected to the lifting lug.

[0013] The end of the sleeve pipe is provided with a baffle, one end of the baffle is fixed on the top of the sleeve pipe by sharing a bolt with the vertical section of the buckle, and the other end of the baffle extends to the other end of the telescopic beam.

[0014] The cross section of the baffle is in inverted U-shaped structure, so that the baffle is arranged around the top and the upper sides of the telescopic beam; one end of the baffle is formed with a notch matched with the buckle, and the other end of the baffle is upwardly bent to form an extension part.

[0015] A construction method of a telescopic formwork hoisting point beam device, comprising the following steps:

[0016] Step 1: install the sleeve pipe on the steel beam of the climbing formwork or the steel platform frame body through the buckle and lock and fix it;

[0017] Step 2: when the steel bar is constructed, the telescopic beam is pulled back into the sleeve pipe through the telescopic pulling assembly to expand the operation space above the concrete wall body; when the formwork is lifted, the telescopic beam is pulled out of the sleeve pipe through the telescopic pulling assembly.

[0018] In step 2, when the reinforcing bar is constructed, the second pull rope is pulled downward, the distance between the movable pulley close to the other end of the sleeve and the change pulley is reduced, the telescopic beam is pulled to move to the inside of the sleeve, the telescopic beam is retracted, and the telescopic beam moves along the sleeve in the axial direction and rolls with the supporting wheel and the pressing wheel.

[0019] When the template lifting operation is performed, the first pull rope is pulled downward, the distance between the movable pulley close to one end of the sleeve and the change pulley is reduced, the telescopic beam is pulled to move to the outside of the sleeve, the telescopic beam is extended, and the telescopic beam moves along the sleeve in the axial direction and rolls with the supporting wheel and the pressing wheel.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1、The telescopic beam moves relative to the sleeve under the pulling control of the telescopic pulling assembly, has an adjustable telescopic function, can meet different construction space requirements, reduces the influence on the reinforcing bar installation and hoisting construction steps, is beneficial to optimizing the use process of the lifting point beam, improves the construction efficiency, and is labor-saving, convenient, simple in structure and low in cost through manual pulling operation.

[0022] 2、The buckle can be sleeved on the steel beam of the climbing formwork or the steel platform frame body and locked and fixed, can be arranged flexibly with the beam, can flexibly adjust the installation position of the lifting point beam according to specific construction requirements, optimizes the lifting point setting mode of the traditional formwork system, and solves the problem of inflexible setting position of the lifting point beam of the traditional formwork system. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description of exemplary embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which like reference characters generally refer to the same parts throughout the different views of the drawings.

[0024] Figure 1 is a front view of the telescopic formwork lifting point beam device of the present application;

[0025] Figure 2 is a front view of the sleeve in the telescopic formwork lifting point beam device of the present application;

[0026] Figure 3 is a front view of the cover plate and the pressing wheel in the telescopic formwork lifting point beam device of the present application;

[0027] Figure 4 is a top view of the cover plate and the pressing wheel in the telescopic formwork lifting point beam device of the present application;

[0028] Figure 5 is a front view of the buckle in the telescopic formwork lifting point beam device of the present application;

[0029] Figure 6 is a side view of the buckle in the telescopic formwork hanging point beam device of the present application;

[0030] Figure 7 is a top view of the buckle in the telescopic formwork hanging point beam device of the present application;

[0031] Figure 8 is a bottom structural schematic view of the sleeve in the telescopic formwork hanging point beam device of the present application;

[0032] Figure 9 is a front view of the telescopic beam in the telescopic formwork hanging point beam device of the present application;

[0033] Figure 10 is a side view of the telescopic beam in the telescopic formwork hanging point beam device of the present application;

[0034] Figure 11 is a side view of the baffle in the telescopic formwork hanging point beam device of the present application;

[0035] Figure 12 is a front view of the baffle in the telescopic formwork hanging point beam device of the present application;

[0036] Figure 13 is a top view of the baffle in the telescopic formwork hanging point beam device of the present application;

[0037] Figure 14 is a construction use view of the telescopic formwork hanging point beam device of the present application (telescopic beam retracted);

[0038] Figure 15 is a construction use view of the telescopic formwork hanging point beam device of the present application (telescopic beam extended).

[0039] In the figure, 100 is the telescopic formwork hanging point beam device, 1 is the telescopic beam, 11 is the supporting wheel, 12 is the lifting lug, 2 is the sleeve, 21 is the limiting sliding groove, 22 is the cover plate, 23 is the pressure wheel, 24 is the closed pressure wheel seat, 25 is the anti-falling supporting plate, 26 is the baffle, 262 is the notch, 261 is the extension, 3 is the buckle, 31 is the jacking bolt, 4 is the climbing form or steel platform frame body, 41 is the steel beam, 51 is the pulling rope fixing part, 52 is the pulling rope fixing shaft, 53 is the redirecting pulley, 54 is the lengthening seat, 55 is the movable pulley, 56 is the first pulling rope, 57 is the second pulling rope, and 6 is the hoisting equipment. DETAILED DESCRIPTION

[0040] The telescopic formwork hanging point beam device and its construction method of the present application are further described in detail below in combination with the drawings and specific embodiments. The advantages and features of the present application will be more apparent according to the following description and claims. It should be noted that the drawings are all in a very simplified form and all use non-precise proportions, only for the purpose of facilitating and clearly assisting in the description of the embodiments of the present application.

[0041] Please refer to the attached Figure 1 、attached Figure 14 and attached Figure 15 , a telescopic formwork lifting point beam device 100, comprising a telescopic beam 1, a sleeve pipe 2, a buckle 3 and a telescopic pulling assembly; the buckle 3 is installed in pairs on the outer wall of the sleeve pipe 2, and multiple pairs of buckles 3 are arranged on the sleeve pipe 2 at intervals, and a sleeving gap is formed between each pair of buckles 3, the sleeve pipe 2 can be matched and sleeved on the steel beam 41 of the climbing formwork or steel platform frame body 4 through the sleeving gap of the buckle 3 and locked and fixed, so that the sleeve pipe 2 can be detachably installed on the climbing formwork or steel platform frame body 4; one end of the telescopic beam 1 is telescopically inserted into the sleeve pipe 2, and the other end of the telescopic beam 1 extends to the outside of the sleeve pipe 2; one end of the telescopic pulling assembly is connected to the telescopic beam 1, and the other end of the telescopic pulling assembly extends below the sleeve pipe 2.

[0042] Through the arrangement of the buckle 3, the telescopic formwork lifting point beam device 100 can be flexibly installed on the steel beam 41 at different positions of the climbing formwork or steel platform frame body 4, and is convenient and fast to disassemble and assemble, and the arrangement mode is more flexible and variable. Under the pulling control of the telescopic pulling assembly, through the telescopic cooperation of the sleeve pipe 2 and the telescopic beam 1, the telescopic beam 1 can be retracted and extended to meet different construction operation requirements, for example, when reinforcing steel bar construction is carried out, the telescopic beam 1 can be retracted to leave enough operable space, and when formwork lifting operation is carried out, the telescopic beam 1 can be extended to facilitate the lifting of the formwork.

[0043] Please refer to the attached Figure 1 and attached Figure 2 , the height of the telescopic beam 1 is less than the internal height of the sleeve pipe 2, and a supporting wheel 11 is arranged on the inner wall of the bottom of the sleeve pipe 2, the supporting wheel 11 is in rolling contact with the bottom of the telescopic beam 1, and one end of the telescopic beam 1 is telescopically inserted into the sleeve pipe 2.

[0044] Through the arrangement of the supporting wheel 11, the sliding friction between the telescopic beam 1 and the sleeve pipe 2 is converted into rolling friction, so that the telescopic action of the telescopic beam 1 is more smooth and flexible.

[0045] Please refer to the attached Figure 1 , attached Figure 4 and attached Figure 5 , a notch is formed at the top of the sleeve pipe 2, a cover plate 22 is installed on the top outer wall of the sleeve pipe 2, a pressing wheel 23 is installed on the cover plate 22 through a closed pressing wheel seat 24, the bottom of the pressing wheel 23 penetrates the notch and presses on the telescopic beam 1, so that the top surface of the telescopic beam 1 is in rolling contact with the pressing wheel 23 when the telescopic beam 1 is telescopically extended.

[0046] Through the arrangement of the pressing wheel 23, the telescopic beam 1 is pressed downward to prevent the telescopic beam 1 from being raised. The pressing wheel 23 and the supporting wheel 11 form an upper pressing and lower supporting effect to improve the stability of the telescopic process of the telescopic beam 1. The closed pressing wheel seat 24 is used to close the cover of the pressing wheel 23 to protect the pressing wheel 23 from being eroded by rainwater and the like, so that the pressing wheel 23 rotates smoothly.

[0047] Please see the attached Figure 1 , attached Figure 5 to the attached Figure 7 , the buckle 3 is L-shaped structure, the vertical section of the buckle 3 is installed on the sleeve 2 by bolt, the horizontal section of the buckle 3 and the sleeve 2 form a horizontal gap, a pair of horizontal section of the buckle 3 end to end form a vertical gap, the horizontal gap and the vertical gap between a pair of buckle 3 and the sleeve 2 constitute the sleeve gap; the lower flange of the steel beam 41 is matched in the horizontal gap, the horizontal section of the buckle 3 end is provided with a jacking bolt 31, the jacking bolt 31 can be jacked on the web of the steel beam 41.

[0048] Preferably, the buckle 3 can be made of steel plate, the size of the buckle 3 is determined according to the size of the steel beam 41, the height of the horizontal gap is matched with the thickness of the lower flange of the steel beam 41, the installation distance of a pair of buckle 3 is slightly larger than the thickness of the web of the steel beam 41, so that the jacking bolt 31 on a pair of buckle 3 can be screwed and jacked on the two sides of the web of the steel beam 41, and the locking effect is achieved. A pair of buckle 3 is convenient and simple to install and disassemble on the steel beam 41, and can be flexibly arranged with the beam.

[0049] Please see the attached Figure 1 , attached Figure 8 to the attached Figure 10 , the telescopic pull-out assembly comprises a pull rope fixing part 51, a pull rope fixing shaft 52, a redirecting pulley 53, an extension seat 54, a movable pulley 55, a first pull rope 56 and a second pull rope 57; two pull rope fixing parts 51 are respectively installed at the bottom of the sleeve 2, and the pull rope fixing shaft 52 and the redirecting pulley 53 are installed on each pull rope fixing part 51; the upper end of the extension seat 54 is fixedly installed at the bottom of the telescopic beam 1, the bottom of the sleeve 2 forms a limiting sliding groove 21, the lower end of the extension seat 54 penetrates the bottom of the sleeve 2 through the limiting sliding groove 21, the extension seat 54 is located between the two redirecting pulleys 53, and the two movable pulleys 55 are respectively installed at the lower end of the extension seat 54; one end of the first pull rope 56 is fixed on the pull rope fixing shaft 52 at one end of the sleeve 2, the other end of the first pull rope 56 naturally drops after winding through a movable pulley 55 and a redirecting pulley 53 close to one end of the sleeve 2, and one end of the second pull rope 57 is fixed on the pull rope fixing shaft 52 at the other end of the sleeve 2, the other end of the second pull rope 57 naturally drops after winding through the other movable pulley 55 and the other redirecting pulley 53 close to the other end of the sleeve 2.

[0050] The pull rope fixing shaft 52 is located above the redirecting pulley 53, and the pull rope fixing shaft 52, the redirecting pulley 53 and the movable pulley 55 are structured as a group, so that the first pull rope 56 and the second pull rope 57 form an S-shaped structure and can be pulled flexibly. At one end close to the sleeve 2, the first pull rope 56 is pulled downward, is redirected and guided through the redirecting pulley 53 and the movable pulley 55, and can move the telescopic beam 1 relative to the sleeve 2 in a direction of extending out of the sleeve 2. At the other end close to the sleeve 2, the second pull rope 57 is pulled downward, is redirected and guided through the redirecting pulley 53 and the movable pulley 55, and can move the telescopic beam 1 relative to the sleeve 2 in a direction of retracting into the sleeve 2, so as to realize telescopic control of the telescopic beam 1.

[0051] Preferably, the lengthening seat 54 can be arranged at the middle of the telescopic beam 1, and the force is uniform when being pulled, and the movement is stable. The length of the limiting sliding groove 21 is less than the length of the sleeve 2, and is used for limiting the moving direction and range of the lengthening seat 54, so as to limit the telescopic range of the telescopic beam 1. The length of the limiting sliding groove 21 can be determined according to the telescopic range of the telescopic beam 1, and the limiting sliding groove 21 is arranged staggered with the supporting wheel 11.

[0052] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the inner wall of the sleeve 2 is arranged with two anti-falling supporting plates 25 at intervals, and the lengthening seat 54 is movably arranged between the two anti-falling supporting plates 25.

[0053] Through the arrangement of the two anti-falling supporting plates 25, the activity range of the lengthening seat 54 can be limited, the movement of the lengthening seat 54 in the range of the limiting sliding groove 21 is ensured, the telescopic beam 1 is prevented from being pulled out of the sleeve 2 in the telescopic process, a limiting protection effect is achieved, and the construction safety is improved. Preferably, the anti-falling supporting plate 25 can be welded on the inner wall of the sleeve 2.

[0054] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 9 , the other end of the telescopic beam 1 is arranged with a lifting lug 12, the lifting lug 12 is located at the outer side of the sleeve 2, and the hoisting device 6 is connected to the lifting lug 12.

[0055] The hoisting device 6 can be selected from a hand-operated hoist, an electric hoist and the like according to actual use requirements, so as to facilitate hoisting of a formwork, materials and the like.

[0056] Please refer to the accompanying drawings Figure 1 , the end of the sleeve 2 is arranged with a baffle 26, one end of the baffle 26 is bolted with the vertical section of the buckle 3 on the top of the sleeve 2, and the other end of the baffle 26 extends to the other end of the telescopic beam 1.

[0057] Through the arrangement of the baffle 26, mud can be shielded, and the mud is prevented from splashing into the sleeve 2 to affect the telescoping of the telescopic beam 1.

[0058] Please refer to the accompanying drawingsFigure 11 To the attached Figure 13 , the cross section of the baffle 26 is inverted U-shaped structure, so that the baffle 26 is arranged around the top and upper side of the telescopic beam 1; one end of the baffle 26 is formed with a notch 261 matched with the buckle 3, and the other end of the baffle 26 is bent upwards to form an extension 262.

[0059] The baffle 26 with inverted U-shaped structure and the upwardly turned extension 262 can increase the shielding area of the mud and improve the mud shielding effect of the baffle 26.

[0060] Please refer to the attached Figure 1 To the attached Figure 15 A construction method of a telescopic formwork hanging point beam device, comprising the following steps:

[0061] Step 1: install the sleeve 2 on the steel beam 41 of the climbing formwork or steel platform frame body 4 through the buckle 3 and lock and fix.

[0062] Specifically, a pair of said buckles 3 are sleeved on the lower flange of the steel beam 41 through the sleeve gap, and are screwed into the web of the steel beam 41 on both sides through a pair of jacking bolts 31.

[0063] Step 2: during steel bar construction, pull the telescopic beam 1 back into the sleeve 2 through the telescopic pulling assembly to expand the operation space above the concrete wall, facilitate material hoisting, steel bar transfer, etc., as shown in the attached Figure 14 ; during formwork lifting operation, pull the telescopic beam 1 out of the sleeve 2 through the telescopic pulling assembly, which is convenient for precise lifting of the formwork, the formwork bears better stress, has less impact on the concrete surface, and is beneficial to improving construction quality, as shown in the attached Figure 15 .

[0064] Please refer to the attached Figure 1 and the attached Figure 14 , during the step 2, during steel bar construction, pull down the second pulling rope 57 to reduce the distance between the movable pulley 55 close to the other end of the sleeve 2 and the change pulley 53, pull the telescopic beam 1 to move to the inside of the sleeve 2, realize the retraction action of the telescopic beam 1, and the telescopic beam 1 moves axially along the sleeve 2 and rolls in contact with the supporting wheel 11 and the pressing wheel 23.

[0065] Please refer to the attached Figure 1 and the attached Figure 15 , during the step 2, during formwork lifting operation, pull down the first pulling rope 56 to reduce the distance between the movable pulley 55 close to one end of the sleeve 2 and the change pulley 53, pull the telescopic beam 1 to move to the outside of the sleeve 2, realize the extension action of the telescopic beam 1, and the telescopic beam 1 moves axially along the sleeve 2 and rolls in contact with the supporting wheel 11 and the pressing wheel 23.

[0066] The above description is only the description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any change and modification made by the person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A telescopic formwork hanger beam device, characterized in that, The utility model relates to a telescopic beam (1), sleeve pipe (2), buckle (3) and telescopic pull-out assembly, buckle (3) is installed on the outer wall of sleeve pipe (2) in pairs, and a plurality of pairs of buckles (3) are arranged at intervals on sleeve pipe (2), the sleeve joint gap is formed between each pair of buckles (3), sleeve pipe (2) can be matched and sleeved on the steel beam (41) of climbing formwork or steel platform frame body (4) through the sleeve joint gap of buckle (3) and is locked and fixed, so that sleeve pipe (2) can be detachably installed on climbing formwork or steel platform frame body (4), one end of telescopic beam (1) can be telescopically inserted in sleeve pipe (2), and the other end of telescopic beam (1) extends to the outside of sleeve pipe (2), one end of telescopic pull-out assembly is connected on telescopic beam (1), and the other end of telescopic pull-out assembly extends below sleeve pipe (2). The height of telescopic beam (1) is less than the internal height of sleeve pipe (2), the bottom inner wall of sleeve pipe (2) is provided with a supporting wheel (11), the supporting wheel (11) is in rolling contact with the bottom of telescopic beam (1), so that one end of telescopic beam (1) can be telescopically inserted in sleeve pipe (2).

2. The telescoping formwork hanger beam apparatus of claim 1, wherein, The top of sleeve pipe (2) is formed with a notch, a cover plate (22) is installed on the top outer wall of sleeve pipe (2), a pressing wheel (23) is installed on the cover plate (22) through a closed pressing wheel seat (24), the bottom of pressing wheel (23) penetrates the notch and is pressed on telescopic beam (1), so that the top surface of telescopic beam (1) is in rolling contact with pressing wheel (23) when telescopic beam (1) telescopes.

3. A formwork hanging beam assembly as claimed in claim 1 or 2, wherein, The buckle (3) is in L-shaped structure, the vertical section of buckle (3) is installed on sleeve pipe (2), the horizontal section of buckle (3) is formed with a horizontal gap between the bottom and sleeve pipe (2), the horizontal section of a pair of buckles (3) is formed with a vertical gap between the ends, and the horizontal gap and the vertical gap between a pair of buckles (3) and sleeve pipe (2) constitute the sleeve joint gap; the lower flange of steel beam (41) is matched and clamped in the horizontal gap, the horizontal section of buckle (3) is provided with a jacking bolt (31), and the jacking bolt (31) can be jacked on the web of steel beam (41).

4. The telescoping formwork hanger beam apparatus of claim 1, wherein, ​ 5. The telescoping formwork lifting beam assembly of claim 1, wherein, The telescopic pulling assembly comprises a pulling rope fixing part (51), a pulling rope fixing shaft (52), a redirecting pulley (53), an extension seat (54), a movable pulley (55), a first pulling rope (56) and a second pulling rope (57); two pulling rope fixing parts (51) are respectively arranged at the two ends of the bottom of the sleeve pipe (2), and the pulling rope fixing shaft (52) and the redirecting pulley (53) are arranged on each pulling rope fixing part (51); the upper end of the extension seat (54) is fixedly arranged at the bottom of the telescopic beam (1), the bottom of the sleeve pipe (2) is formed with a limiting sliding groove (21), the lower end of the extension seat (54) penetrates through the bottom of the sleeve pipe (2) through the limiting sliding groove (21), the extension seat (54) is located between the two redirecting pulleys (53), and the two movable pulleys (55) are respectively arranged at the lower end of the extension seat (54); one end of the first pulling rope (56) is fixed to the pulling rope fixing shaft (52) at one end of the sleeve pipe (2), and the other end of the first pulling rope (56) naturally drops after passing through the movable pulley (55) and the redirecting pulley (53) close to one end of the sleeve pipe (2); one end of the second pulling rope (57) is fixed to the pulling rope fixing shaft (52) at the other end of the sleeve pipe (2), and the other end of the second pulling rope (57) naturally drops after passing through the movable pulley (55) and the redirecting pulley (53) close to the other end of the sleeve pipe (2).

6. The telescoping formwork hanger beam assembly of claim 5, wherein, The inner wall of the sleeve pipe (2) is provided with two anti-falling supporting plates (25) at intervals, and the extension seat (54) is movably arranged between the two anti-falling supporting plates (25).

7. The formwork hanging beam apparatus of claim 1 or 2 or 5, wherein, The other end of the telescopic beam (1) is provided with a lifting lug (12), the lifting lug (12) is located on the outer side of the sleeve pipe (2), and the hoisting device (6) is connected to the lifting lug (12).

8. The telescoping formwork hanger beam apparatus of claim 4, wherein, The end of the sleeve pipe (2) is provided with a baffle (26), one end of the baffle (26) is bolted to the top of the sleeve pipe (2) together with the vertical section of the buckle (3), and the other end of the baffle (26) extends to the other end of the telescopic beam (1). The cross section of the baffle (26) is in inverted U-shaped structure, so that the baffle (26) is arranged around the top and the two sides of the upper part of the telescopic beam (1); one end of the baffle (26) is formed with a notch (261) matched with the sleeve of the buckle (3), and the other end of the baffle (26) is upwardly bent to form an extension part (262).

9. A construction method using the telescopic formwork hanger beam device according to claim 5, characterized in that, The steps include: Step 1: the sleeve pipe (2) is installed on the steel beam (41) of the climbing formwork or steel platform frame body (4) through the buckle (3) and is locked and fixed; Step 2: when the steel bar is constructed, the telescopic beam (1) is pulled back into the sleeve pipe (2) through the telescopic pulling assembly, so as to expand the operation space above the concrete wall; when the formwork is lifted, the telescopic beam (1) is pulled out of the sleeve pipe (2) through the telescopic pulling assembly.

10. The construction method according to claim 9, wherein In step 2, when the steel bar is constructed, the second pulling rope (57) is pulled downward, the distance between the movable pulley (55) close to the other end of the sleeve pipe (2) and the redirecting pulley (53) is reduced, the telescopic beam (1) is pulled to move to the inside of the sleeve pipe (2), the telescopic beam (1) is retracted, and the telescopic beam (1) moves along the sleeve pipe (2) and rolls with the supporting wheel (11) and the pressing wheel (23). When the template is lifted, the first pull rope (56) is pulled downward, the distance between the movable pulley (55) near one end of the sleeve (2) and the change-over pulley (53) is reduced, the telescopic beam (1) is pulled to move outward of the sleeve (2), the telescopic beam (1) is extended, and the telescopic beam (1) moves along the sleeve (2) in the axial direction and rolls with the supporting wheel (11) and the pressing wheel (23).

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