Concrete member reinforcement connection device and method of use thereof

Abstract

The application provides a concrete component steel bar connecting device and a use method thereof. A handle end is connected with a mounting seat in a U-shaped structure. Opposed clamping jaws are arranged at two ends of a U-shaped opening of the mounting seat. The opposed clamping jaws are driven and clamped by a gas cylinder. An electromagnetic coil is arranged between the two opposed clamping jaws. The electromagnetic coil is arranged in the U-shaped opening of the mounting seat. The electromagnetic coil is synchronously opened and closed with the opposed clamping jaws. A connecting cylinder comprises at least two annular groove plates in a sector-shaped structure. The two annular groove plates are sleeved on two steel bar end heads. The two steel bars are pressed in the connecting cylinder by the opposed clamping jaws. The electromagnetic coil heats the connecting cylinder and the upper and lower steel bars to be fused. The connecting mode is mainly used for connecting the steel bars in a reinforced concrete structure. High strength and durability can be provided. The main advantages are high connecting strength and good rigidity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel bar butt joint, in particular to a concrete component steel bar connecting device and a using method thereof. BACKGROUND

[0002] In the construction, in addition to the conventional welding, sleeve connection is also used to connect two steel bars. In GB / T163-2013 sleeve for mechanical connection of steel bars, several commonly used sleeves are listed, such as straight thread sleeve and tapered thread sleeve. However, these threaded sleeves have certain defects when applied to the case where the spacing of steel bars is inconsistent. For example, in the connection of steel cages, the steel bars of the steel cage often have inconsistent lengths, which causes the steel bars to be not in alignment, and the above-mentioned standard sleeves are generally only suitable for connecting in the case where two steel bars are in alignment, and cannot be applied to this case. If the standard sleeve is used, the joint will be deformed, the steel bar wire head will not be screwed in enough, and the requirements of a first-class steel joint cannot be met.

[0003] Rolling straight thread connection is also used, and the basic principle is to process threads on the end of two steel bars to be connected by using a threading machine (or a thread rolling machine), and then use a sleeve with an internal thread to tightly align the two ends of the steel bars. However, for large-sized steel bars, the processing of threads is difficult, and it is also difficult to achieve firm connection by using the conventional direct connection method of ribbed steel bars.

[0004] The steel bars are connected by welding, which requires high temperature and electric energy during the welding process, and the operation is complex and dangerous. Moreover, deformation and residual stress may occur after welding, which causes the structure to lose balance. At the same time, the steel bar welding type connection needs to be strictly controlled in terms of welding process and technology, otherwise the seismic performance and service life of the component may be affected.

[0005] A steel cage adjustable sleeve (patent publication number: CN211850377U) includes a standard sleeve for connecting with the steel bar wire head of one steel cage steel bar, a lengthened sleeve for connecting with the steel bar wire head of another steel cage steel bar, and a lengthened thread connection for connecting the standard sleeve and the lengthened sleeve. The steel cage adjustable sleeve can be installed on the construction site in a standardized manner, has high construction efficiency, and can ensure the construction quality. However, the steel cage adjustable sleeve still needs to process threads on the end of the steel bar to be connected, and therefore there is still great inconvenience in the connection operation on the construction site. SUMMARY

[0006] The main purpose of the present application is to provide a concrete component steel bar connecting device and a using method thereof, which solves the problem that the adjustable sleeve still needs to process threads on the end of the steel bar to be connected, and therefore there is still great inconvenience in the connection operation on the construction site.

[0007] To solve the above technical problems, the technical scheme adopted by the present application is: A concrete component steel bar connecting device, the handle end is connected with the mounting seat of U-shaped structure, the two ends of the U-shaped opening of the mounting seat are respectively provided with a pair of clamping jaws, the pair of clamping jaws are driven and clamped by a gas cylinder, an electromagnetic coil is arranged between the two pair of clamping jaws, the electromagnetic coil is arranged in the U-shaped opening of the mounting seat, and the electromagnetic coil is synchronous with the pair of clamping jaws to open and close.

[0008] The connecting barrel comprises at least two annular groove plates of a sector structure, the two annular groove plates are sleeved on the two steel bar end heads, the two steel bars are pressed in the connecting barrel by the pair of clamping jaws, and the connecting barrel and the upper and lower steel bars are fusion welded by the electromagnetic coil.

[0009] In the preferred scheme, the structure of the pair of clamping jaws is that fixed clamping heads are fixedly arranged at the two ends of the U-shaped opening of the mounting seat, and a movable clamping head is arranged at one side of the fixed clamping head, the driving end head of the movable clamping head extends through the end of the U-shaped opening and is hinged to the end of the U-shaped opening, one end of the gas cylinder is hinged to the end of the driving end head, and the other end is hinged to the handle.

[0010] In the preferred scheme, the driving end heads of the two movable clamping heads at the two ends of the U-shaped opening of the mounting seat are connected through a driving rod;

[0011] One end of the gas cylinder is hinged to the driving rod, and the other end is hinged to the handle.

[0012] In the preferred scheme, the movable clamping head and the fixed clamping head are in a semicircular arc structure, and the semicircular arc structure is attached to the outer surface of the connecting barrel.

[0013] Magnets are arranged on the surfaces of the movable clamping head and the fixed clamping head.

[0014] In the preferred scheme, the electromagnetic coil comprises a fixed coil and a movable coil, the fixed coil is fixedly connected with the mounting seat, and the movable coil is connected with the movable clamping head through a synchronous rod.

[0015] In the preferred scheme, the fixed coil and the movable coil of the electromagnetic coil are arranged back and forth, the electromagnetic coil is in an arc structure as a whole, the arc surface is matched with the outer surface of the connecting barrel, and the fixed coil and the movable coil form an electromagnetic heating annular ring around the connecting barrel.

[0016] In the preferred scheme, the inner surfaces of the two ends of the connecting barrel are attached to the surfaces of the steel bars, and a protruding fusion chamber is arranged in the middle of the connecting barrel, the upper and lower ends of the fusion chamber are respectively attached to the surfaces of the steel bars to form a closed chamber, and at least two sintered filler blocks are arranged in the chamber body of the fusion chamber.

[0017] The cross section of the sintered filler block is in a sector structure, and the vertical section is in an H-shaped structure, the two ends of the upper and lower steel bars are respectively arranged at the two ends of the sintered filler block, and the two ends of the upper and lower steel bars do not contact.

[0018] The material of the sintered filler block is iron-aluminum-magnesium mixed powder, or copper-aluminum-magnesium mixed powder, or iron-zinc-aluminum mixed powder;

[0019] The electromagnetic coil is arranged outside the fusion chamber, the electromagnetic coil heats the sintered filler block, the sintered filler block fuses the two ends of the upper and lower steel bars together, and the sintered filler block is also fused with the fusion chamber of the connecting cylinder as a whole.

[0020] In the preferred embodiment, the connecting cylinder is composed of two annular groove plates, the two annular groove plates are arranged symmetrically along the center of the shaft by 180°, a recessed positioning groove is arranged on one side of the upper end of the annular groove plate, and a positioning block matched with the positioning groove is arranged on the other side, and the positioning block is matched with the positioning groove;

[0021] A raised sealing baffle is arranged on one side of the fusion chamber of the annular groove plate along the middle of the edge line, and a sealing groove body matched with the sealing baffle is arranged on the other side, and the fusion chamber composed of the two annular groove plates forms a closed chamber body through the cooperation of the sealing baffle and the sealing groove body.

[0022] In the preferred embodiment, at least two ring grooves are further arranged on the two ends of the connecting cylinder, the two bosses on the annular groove plate form a first ring groove, and the bosses below the first ring groove on the side surface of the fusion chamber form a second ring groove;

[0023] The movable chuck of the clamping jaw is arranged on the first ring groove to splice the two annular groove plates to form the connecting cylinder;

[0024] Locking hoops are arranged on the two ends of the connecting cylinder and the second ring groove, the locking hoops are provided with openings, the connecting ears on both sides of the opening are in the shape of a trumpet, and the two connecting ears are connected through bolts;

[0025] The tail of the handle is sleeved with the telescopic rod set, and the fixed nut on the handle is arranged to abut against the end surface of the telescopic rod;

[0026] A vertical handle is further arranged on the end of the telescopic rod, and a vertical supporting handle is further arranged on the lower surface of the handle.

[0027] The method comprises:

[0028] S1, the cylinders drive the clamping jaws to open, the separate annular groove plates are arranged on the two clamping jaws, the movable chuck of the clamping jaw is matched with the first ring groove of the annular groove plate through magnetic attraction, and the sintered filler block is filled in the fusion chamber of the annular groove plate;

[0029] S2, the upper steel bars are hoisted, when the upper steel bars are close to the top end of the lower steel bars, the clamping jaws and the annular groove plates are close to the two ends of the steel bars, the two ends of the steel bars are clamped in the fusion chamber, and the two cylinders are simultaneously driven to make the two annular groove plates extrude the upper and lower steel bars to the coaxial position, and the two annular groove plates form the connecting cylinder through the positioning structure.

[0030] S3, start the high voltage box, the high voltage box drives the electromagnetic coil, the electromagnetic coil is wound around the welding bin position, the welding bin starts to heat, the sintered filler block in the welding bin starts to sinter, the sintered filler block is sintered through high temperature, and the sintered filler block, the upper and lower two steels and the welding bin form a whole;

[0031] S4, after the welding bin is cooled, locking hoops are respectively arranged at the two ends of the connecting barrel and the second ring groove position, and the locking hoops are fixed through bolts;

[0032] S5, the clamping jaw is opened, and the electromagnetic coil is also opened.

[0033] The application provides a concrete component steel bar connecting device and a use method thereof, two steel bars are positioned and connected through a connecting barrel, a sintered filler block in the connecting barrel is heated and sintered through an external electromagnetic coil, and the sintered filler block melts and sinters the connecting barrel and the two steel bars together, the connecting mode is mainly used for connecting steel bars in a reinforced concrete structure, and can provide higher strength and durability. The main advantages are high connecting strength, good rigidity, improved stability and carrying capacity of the whole component, higher connecting strength, and anti-deformation and anti-twisting capacity. BRIEF DESCRIPTION OF DRAWINGS

[0034] The application will be further described below in combination with the drawings and examples:

[0035] Figure 1 is a top view structure diagram of the butt joint device of the application;

[0036] Figure 2 is a structure diagram of the butt joint device of the application before butt joint steel bars;

[0037] Figure 3 is a structure diagram of the butt joint device of the application in butt joint steel bars;

[0038] Figure 4 is a structure diagram of the butt joint device of the application after butt joint steel bars;

[0039] Figure 5 is an installation structure diagram of the movable coil and the clamping jaw of the application;

[0040] Figure 6 is a locking hoop installation position structure diagram of the application;

[0041] Figure 7 is a connecting barrel disassembly structure diagram of the application;

[0042] Figure 8 is a sintered filler block arrangement structure diagram in the connecting barrel of the application.

[0043] In the figure: the pair of clamps 1; the movable chuck 101; the fixed chuck 102; the driving end 103; the electromagnetic coil 2; the fixed coil 201; the movable coil 202; the handle 3; the support grip 301; the fixed nut 302; the telescopic rod 303; the handle 304; the air cylinder 4; the reinforcing bar 5; the connecting cylinder 6; the positioning groove 601; the positioning block 602; the first ring groove 603; the second ring groove 604; the welding bin 605; the sealing stop 606; the sealing groove 607; the mounting seat 7; the reinforcing rib 701; the high-pressure box 8; the sintered filler block 9; the locking hoop 10; the connecting lug 1001; the driving rod 11; the synchronous rod 12. DETAILED DESCRIPTION

[0044] Embodiment 1

[0045] As shown in Figures 1-8 , a concrete component reinforcing bar connecting device, the end of the handle 3 is connected with the mounting seat 7 of U-shaped structure, the U-shaped opening of the mounting seat 7 is provided with the pair of clamps 1 at both ends respectively, the pair of clamps 1 is driven to clamp by the air cylinder 4, the electromagnetic coil 2 is arranged inside the U-shaped opening of the mounting seat 7 and the pair of clamps 1 is opened and closed synchronously; the connecting cylinder 6 includes at least two ring groove plates of fan-shaped structure, the two ring groove plates are sleeved on the end of the two reinforcing bars 5, the two reinforcing bars 5 are pressed in the connecting cylinder 6 by the pair of clamps 1, and the connecting cylinder 6 and the upper and lower reinforcing bars 5 are welded by the electromagnetic coil 2. The two reinforcing bars are positioned and butt-jointed by the connecting cylinder 6 and the pair of clamps 1 firstly, the sintered filler block 9 in the connecting cylinder 6 is melted and sintered by the external electromagnetic coil 2, and the connecting cylinder 6 and the two reinforcing bars are welded together by the sintered filler block 9.

[0046] The sintered filler block 9 adopts metal powder sintering material, the metal powder is pressed into block structure, the filler block of block structure is expanded and sintered by the electromagnetic coil 2, the connecting cylinder 6 and the two reinforcing bars are welded together by the sintered filler block 9, and the heating temperature is 800-1600°C.

[0047] In the preferred embodiment, the structure of the pair of clamps 1 is that the fixed chucks 102 are fixedly arranged at both ends of the U-shaped opening of the mounting seat 7, and the movable chuck 101 is arranged at one side of the fixed chuck 102, one end of the movable chuck 101 extends the driving end 103 which penetrates through the end of the U-shaped opening and is hinged with the end of the U-shaped opening, one end of the air cylinder 4 is hinged with the end of the driving end 103, and the other end is hinged with the handle 3. Figure 1 As shown in the structure of or 5, the air cylinder 4 drives the movable chuck 101 to move towards the fixed chuck 102, and the connecting cylinder 6 is spliced into a whole.

[0048] The high-pressure box 8 is further arranged at one side of the mounting plate 7 and is electrically connected with the electromagnetic coil 2. The high-pressure box 8 is mainly used for driving the electromagnetic coil 2, and the electromagnetic coil 2 heats the connecting cylinder 6 and the sintered filler block 9.

[0049] In the preferred embodiment, the tail of the driving end head 103 of the two movable clamping heads 101 at both ends of the U-shaped opening of the mounting seat 7 is connected through the driving rod 11; one end of the air cylinder 4 is hinged to the driving rod 11, and the other end is hinged to the handle 3. The single air cylinder 4 simultaneously drives the upper and lower movable clamping heads 101 to move towards the fixed clamping head 102, thereby splicing the connecting cylinder 6 into a whole.

[0050] In the preferred embodiment, the movable clamping head 101 and the fixed clamping head 102 are in a semicircular arc structure, and the semicircular arc structure is attached to the outer surface of the connecting cylinder 6; the movable clamping head 101 and the fixed clamping head 102 are in a semicircular arc structure, which facilitates cooperation with the outer surface of the connecting cylinder 6.

[0051] The movable clamping head 101 and the fixed clamping head 102 are provided with magnets on the surface. The inner side of the movable clamping head 101 is also provided with a magnet. The magnet is used to attract the connecting cylinder 6, thereby temporarily determining the position of the connecting cylinder 6.

[0052] In the preferred embodiment, the electromagnetic coil 2 includes a fixed coil 201 and a movable coil 202, the fixed coil 201 is fixedly connected with the mounting seat 7, and the movable coil 202 is connected with the movable clamping head 101 through the synchronous rod 12. The two electromagnetic coils 2 are connected in a winding manner to form an electromagnetic heating field, thereby realizing electromagnetic induction heating of the connecting cylinder 6 and the sintered filler block 9.

[0053] In the preferred embodiment, the fixed coil 201 and the movable coil 202 of the electromagnetic coil 2 are arranged in a back-and-forth winding manner, and the electromagnetic coil 2 as a whole is in an arc structure, the arc surface is matched with the outer surface of the connecting cylinder 6, and the fixed coil 201 and the movable coil 202 are arranged around the connecting cylinder 6 to form an electromagnetic heating annular ring.

[0054] In the preferred embodiment, the inner surface of both ends of the connecting cylinder 6 is attached to the surface of the steel bar 5, and the middle part of the connecting cylinder 6 is provided with a protruding fusion chamber 605, the upper and lower ends of the fusion chamber 605 are respectively attached to the surface of the steel bar 5 to form a sealed chamber, and the inner chamber of the fusion chamber 605 is provided with at least two sintered filler blocks 9. The fusion chamber 605 forms a sealed environment, and when the sintered filler block 9 is melted and sintered, there is no leakage of molten metal. The upper and lower ends of the fusion chamber 605 are made of temperature-resistant rubber material, which has better sealing effect.

[0055] In the preferred embodiment, the sintered filler block 9 is in a fan-shaped structure in cross section, and the vertical cross section is in an H-shaped structure. The upper and lower ends of the upper and lower steel bars are respectively arranged at the two ends of the sintered filler block 9, and the upper and lower ends of the upper and lower steel bars do not contact. Figure 5 As shown in the structure, the two ends of the sintered filler block 9 connect the two ends of the upper and lower steel bars, and the sintered filler block 9 fuses the two ends of the two steel bars, which has more stable connection effect.

[0056] The material of the sintered filler block 9 is iron-aluminum-magnesium mixed powder, or copper-aluminum-magnesium mixed powder, or iron-zinc-aluminum mixed powder;

[0057] In the preferred embodiment, the copper-aluminum-magnesium mixed powder is stamped into a solid shape in the stamping die. When the electromagnetic coil 2 heats the sintered filler block 9, the low-melting-point aluminum-magnesium powder begins to melt, and the aluminum-magnesium powder begins to bond to the steel bars and the outer wall of the welding chamber 605. The aluminum-magnesium mixed metal liquid blocks the gaps around the welding chamber 605, and part of the copper powder in the aluminum-magnesium mixed metal liquid has not melted. The unmelted copper powder also blocks the gaps around the welding chamber 605 along with the aluminum-magnesium mixed metal liquid.

[0058] The melting point of copper powder is 1357℃. When the electromagnetic coil 2 heats the copper powder in the welding chamber 605 and the welding chamber 605 to 1400℃, the sintered filler block 9 in the welding chamber 605 melts completely. The melted sintered filler block 9 fills the entire welding chamber 605. When the electromagnetic coil 2 is powered off, the welding chamber 605 begins to cool, and the sintered filler block 9 melts the steel bars at both ends and the welding chamber 605 of the connecting cylinder 6 into one body. The connection effect is better than the welding effect.

[0059] The electromagnetic coil 2 is arranged outside the welding chamber 605. The electromagnetic coil 2 heats the sintered filler block 9, which melts the two ends of the upper and lower steel bars together, and also melts the sintered filler block 9 and the welding chamber 605 of the connecting cylinder 6 into one body.

[0060] In the preferred embodiment, the connecting cylinder 6 is composed of two annular groove plates, which are arranged symmetrically along the axis center by 180°. The upper end of the annular groove plate is provided with a recessed positioning groove 601 on one side and a positioning block 602 matched with the positioning groove 601 on the other side. The positioning block 602 is matched with the positioning groove 601 to effectively position the two annular groove plates.

[0061] The welding chamber 605 of the annular groove plate is provided with a raised sealing stop edge 606 on one side along the middle of the edge line and a sealing groove body 607 matched with the sealing stop edge 606 on the other side. The welding chamber 605 composed of the two annular groove plates forms a closed chamber body through the cooperation of the sealing stop edge 606 and the sealing groove body 607.

[0062] In the preferred embodiment, the connecting cylinder 6 is further provided with at least two ring grooves at both ends. The two bosses on the annular groove plate form a first ring groove 603, and the bosses below the first ring groove 603 on the side of the welding chamber 605 form a second ring groove 604.

[0063] The movable chuck 101 of the clamping jaw 1 is arranged on the first ring groove 603 to splice the two annular groove plates to form the connecting cylinder 6. The clamping jaw 1 is arranged on the first ring groove 603, and the clamping jaw 1 is effectively limited.

[0064] Locking clamps 10 are provided at both ends of the connecting cylinder 6 and on the second annular groove 604. Each locking clamp 10 has an opening, and the connecting lugs 1001 on both sides of the opening are flared. The two connecting lugs 1001 are connected by bolts. After the welding process is completed, the locking clamps 10 are used to lock the connecting cylinder 6.

[0065] In the preferred embodiment, the handle 3 is assembled with the telescopic rod 303, and the fixing nut 302 on the handle 3 passes through the handle 3 and rests against the end face of the telescopic rod 303; the extension of the handle 3 can be used to perform welding construction on the reinforcing bars at different positions.

[0066] The telescopic rod 303 is also equipped with a vertical handle 304 at its end, and a vertical support grip 301 is also provided on the lower surface of the handle 3. A switch button is provided on the handle 304 for easy control of the air rod 4 for clamping operations.

[0067] Example 2

[0068] Further explanation in conjunction with Example 1, such as Figures 1-8 The structure shown includes the following method: a cylinder 4 drives the jaws 1 to open, separate annular groove plates are installed on the two jaws 1, the movable chucks 101 of the jaws 1 are magnetically attracted to the first annular groove 603 of the annular groove plate, and the welding chamber 605 of the annular groove plate is filled with sintered filler blocks 9.

[0069] When the upper reinforcing bar is hoisted, and the upper reinforcing bar is close to the top of the lower reinforcing bar, the clamping claw 1 and the annular groove plate are brought close to the ends of the two reinforcing bars. The ends of the two reinforcing bars are stuck in the welding chamber 605. The two cylinders 4 are driven at the same time to make the two annular groove plates squeeze the upper and lower reinforcing bars to the coaxial position. The two annular groove plates form the overall structure of the connecting cylinder 6 through the positioning structure.

[0070] Start the high voltage box 8, which drives the electromagnetic coil 2. The electromagnetic coil 2 is wound around the welding chamber 605, and the welding chamber 605 begins to heat up. The sintering filler block 9 inside the welding chamber 605 begins to sinter. After high-temperature sintering, the sintering filler block 9, the upper and lower steel bars, and the welding chamber 605 form a whole.

[0071] When the distance between the upper and lower ends of the reinforcing bars is too long, some sintered powder can be filled into the bottom of the upper and lower inner holes of the sintered filler block 9 on site. The sintered filler block 9 can be fused together with the upper and lower ends of the reinforcing bars.

[0072] The copper-aluminum-magnesium mixed powder is stamped into a solid shape in the stamping die. When the electromagnetic coil 2 heats and sintering the filler block 9, the low-melting-point aluminum-magnesium powder starts to melt, the aluminum-magnesium powder starts to bond to the steel bars and the outer wall of the welding bin 605, and the aluminum-magnesium mixed metal liquid blocks the gaps around the welding bin 605. Part of the copper powder in the aluminum-magnesium mixed metal liquid has not melted, and the copper powder that has not melted also blocks the gaps around the welding bin 605 with the aluminum-magnesium mixed metal liquid.

[0073] The melting point of the copper powder is 1357℃. When the electromagnetic coil 2 heats the welding bin 605 and the copper powder inside the welding bin 605 of the connecting cylinder 6 to 1400℃, the sintering filler block 9 inside the welding bin 605 is completely melted. The melted sintering filler block 9 fills the entire welding bin 605. The electromagnetic coil 2 is turned off, and the welding bin 605 starts to cool. The sintering filler block 9 melts the two ends of the steel bars and the welding bin 605 of the connecting cylinder 6 into one. The connection effect is better than the welding effect.

[0074] After the welding bin 605 cools down, locking hoops 10 are installed at the two ends of the connecting cylinder 6 and the position of the second ring groove 604. The locking hoops 10 are fixed by bolts.

[0075] The clamping jaw 1 is opened, and the electromagnetic coil 2 is also opened. The upper and lower steel bars are butt-jointed.

[0076] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement solutions of the technical features claimed in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.

Claims

1. A concrete member reinforcing bar connection device characterised by: The handle (3) is connected with the mounting seat (7) of U-shaped structure, the mounting seat (7) is provided with the clamping jaw (1) at the two ends of the U-shaped opening, the clamping jaw (1) is driven and clamped by the air cylinder (4), the electromagnetic coil (2) is arranged between the two clamping jaws (1), the electromagnetic coil (2) is arranged in the U-shaped opening of the mounting seat (7), and the electromagnetic coil (2) is opened and closed synchronously with the clamping jaw (1); The connecting cylinder (6) comprises at least two annular groove plates of fan-shaped structure, the two annular groove plates are sleeved on the end heads of the two steels (5), and the two steels (5) are pressed in the connecting cylinder (6) by the clamping jaw (1), and the electromagnetic coil (2) is used for heating the connecting cylinder (6) and the upper and lower steels (5) to be fused; The inner surfaces of the two ends of the connecting cylinder (6) are attached to the surfaces of the steels (5), and the middle part of the connecting cylinder (6) is provided with a protruding fusion chamber (605), the upper and lower ends of the fusion chamber (605) are attached to the surfaces of the steels (5) to form a closed chamber, and the inner chamber of the fusion chamber (605) is provided with at least two sintered filler blocks (9); The cross section of the sintered filler block (9) is of fan-shaped structure, and the vertical section is of H-shaped structure, the upper and lower ends of the steel are arranged at the two ends of the sintered filler block (9), and the upper and lower ends of the steel are not in contact; The material of the sintered filler block (9) is iron-aluminum-magnesium mixed powder, or copper-aluminum-magnesium mixed powder, or iron-zinc-aluminum mixed powder; The electromagnetic coil (2) is arranged outside the fusion chamber (605), the electromagnetic coil (2) is used for heating the sintered filler block (9), the sintered filler block (9) is used for fusing the upper and lower ends of the steel together, and the sintered filler block (9) is also fused with the fusion chamber (605) of the connecting cylinder (6) as a whole.

2. A concrete member reinforcing bar coupling device according to claim 1, wherein: The structure of the clamping jaw (1) is that the fixed clamping head (102) is fixedly arranged at the two ends of the U-shaped opening of the mounting seat (7), one side of the fixed clamping head (102) is provided with the movable clamping head (101), one end of the movable clamping head (101) extends to the driving end head (103) which penetrates through the end of the U-shaped opening and is hinged to the end of the U-shaped opening, one end of the air cylinder (4) is hinged to the end of the driving end head (103), and the other end is hinged to the handle (3).

3. A concrete member reinforcing bar coupling device as claimed in claim 2, wherein: The driving end heads (103) of the two movable clamping heads (101) at the two ends of the U-shaped opening of the mounting seat (7) are connected through the driving rod (11); One end of the air cylinder (4) is hinged to the driving rod (11), and the other end is hinged to the handle (3).

4. The concrete member reinforcing connection apparatus of claim 2, wherein: The movable clamping head (101) and the fixed clamping head (102) are of semicircular arc structure, and the semicircular arc structure is attached to the outer surface of the connecting cylinder (6); The movable clamping head (101) and the fixed clamping head (102) are provided with magnets.

5. The concrete member reinforcement connection device according to claim 2, characterized in that: The electromagnetic coil (2) comprises the fixed coil (201) and the movable coil (202), the fixed coil (201) is fixedly connected with the mounting seat (7), and the movable coil (202) is connected with the movable clamping head (101) through the synchronous rod (12).

6. A concrete member reinforcing connection device as claimed in claim 5 wherein: The fixed coil (201) and the movable coil (202) of the electromagnetic coil (2) are arranged back and forth, and the electromagnetic coil (2) is in an arc structure as a whole, the arc surface is matched with the outer surface of the connecting cylinder (6), and the fixed coil (201) and the movable coil (202) are arranged around the outside of the connecting cylinder (6) to form an electromagnetic heating annular ring.

7. The concrete member reinforcement connection device according to claim 1, characterized in that: The connecting cylinder (6) is composed of two annular groove plates, the two annular groove plates are arranged symmetrically along the axis center by rotating 180°, one side of the upper end of the annular groove plate is provided with a recessed positioning groove (601), and the other side is provided with a positioning block (602) matched with the positioning groove (601), and the positioning block (602) is matched with the positioning groove (601); One side of the fusion chamber (605) of the annular groove plate is provided with a protruding sealing baffle (606) along the middle of the edge line, and the other side is provided with a sealing groove body (607) matched with the sealing baffle (606), and the fusion chamber (605) composed of the two annular groove plates is matched to form a closed chamber body through the sealing baffle (606) and the sealing groove body (607).

8. The concrete member reinforcement connection device according to claim 1, characterized in that: The connecting cylinder (6) is further provided with at least two annular grooves at both ends, the two bosses on the annular groove plate form a first annular groove (603), and the side of the fusion chamber (605) and the boss below the first annular groove (603) form a second annular groove (604); The movable chuck (101) of the clamping jaw (1) is arranged on the first annular groove (603) to splice the two annular groove plates to form the connecting cylinder (6); The connecting cylinder (6) is further provided with a locking hoop (10) at both ends and the second annular groove (604), the locking hoop (10) is provided with an opening at one time, the connecting ears (1001) on both sides of the opening are in a horn-shaped opening, and the two connecting ears (1001) are connected through bolts; The handle (3) is sleeved with the telescopic rod (303) at the tail, and the fixed nut (302) on the handle (3) is arranged to abut against the end surface of the telescopic rod (303) through the handle (3); The telescopic rod (303) is further provided with a vertical handle (304) at the end, and the lower surface of the handle (3) is also provided with a vertical support handle (301).

9. The method of using a concrete construction reinforcing tie according to any one of claims 1 to 8, wherein: The method comprises: S1, the cylinder (4) drives the clamping jaw (1) to open, the separated annular groove plates are installed on the two clamping jaws (1), the movable chuck (101) of the clamping jaw (1) is magnetically attracted to the first annular groove (603) of the annular groove plate, and the fusion chamber (605) of the annular groove plate is filled with a sintered filler block (9) inside; S2, hoist the upper position of the steel bar, when the upper position of the steel bar is close to the top end of the lower position of the steel bar, the clamping jaw (1) and the annular groove plate are close to the two steel bar ends, the two steel bar ends are clamped in the fusion chamber (605) position, and the two cylinders (4) are simultaneously driven to make the two annular groove plates extrude the upper and lower steel bars to the coaxial position, and the two annular groove plates form the connecting cylinder (6) through the positioning structure. S3, start the high voltage box (8), the high voltage box (8) drive electromagnetic coil (2), electromagnetic coil (2) around the position of the welding bin (605), the welding bin (605) starts to heat, the sintered filler block (9) in the welding bin (605) starts to sinter, the sintered filler block (9) is sintered by high temperature, the sintered filler block (9) and the upper and lower two steel bars and the welding bin (605) form a whole; S4, after the welding bin (605) is cooled, the locking hoop (10) is installed at the position of the connecting cylinder (6) both ends and the second ring groove (604), and the locking hoop (10) is fixed by bolts; S5, the clamping jaw (1) is opened, and the electromagnetic coil (2) is also opened at the same time, and the upper and lower two steel bars are butt jointed.

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