Integrated sleeve applicable to connection of double-layer steel bars and mounting tool of integrated sleeve

Abstract

The utility model provides an integrated sleeve suitable for double-layer steel bar connection and an installation tool of the integrated sleeve. The integrated sleeve comprises an upper retainer, a lower retainer and an outer sleeve, wherein the upper retainer and the lower retainer are oppositely arranged, and the outer sleeve is arranged between the two retainers. Left and right steel bar penetrating holes are vertically formed in the retainers, two pairs of steel bar clamping plates are arranged between the two retainers in a sliding mode in the left-right direction, and the two steel bar clamping plates in each pair are located on the left side and the right side of the corresponding steel bar penetrating hole respectively. Two clamping adjusting blocks are arranged between the two retainers and between the two pairs of reinforcing steel bar clamping plates in a sliding mode in the front-back direction, and the left side and the right side of each clamping adjusting block are each provided with an extrusion inclined face in sliding contact with the outer side faces of the two reinforcing steel bar clamping plates in the middle; the positions, corresponding to the two steel bar clamping plates on the two sides, of the left side and the right side of the outer sleeve are provided with extrusion locking panels generated after being pressed. The utility model has the advantages of convenient installation and high installation efficiency, and can effectively shorten the project construction period.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar connection, in particular to an integrated sleeve suitable for connecting double-layer steel bars and an installation tool thereof. Background Art

[0002] At present, in the fields of nuclear power, most of the steel bar modules used are double-layer steel bar structures, with a large spacing between longitudinal bars and a small spacing. When using the existing cone sleeve locking split sleeve to connect the upper and lower steel bars, it is necessary to first install the inner sleeve to connect the inner steel bars, and then install the outer sleeve to connect the outer steel bars. However, due to the small spacing of this double-layer steel bar module, it is very difficult to install the sleeve when connecting the inner steel bars. It is often necessary to use multiple people to pry the outer steel bars and barely make room to accommodate the installation tools before the sleeve can be installed. In addition, this installation method can only realize the installation of single layers of double-layer steel bars in sequence. Therefore, using the existing cone sleeve locking split sleeve to connect the steel bars of the double-layer steel bar module is labor-intensive, has low installation efficiency, and takes a long time to construct. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide an integrated sleeve suitable for connecting double-layer steel bars and an installation tool thereof in view of the deficiencies in the prior art.

[0004] In order to solve the above technical problems, the contents of the present invention include: an integrated sleeve suitable for double-layer steel bar connection, comprising two upper and lower relatively arranged retaining frames and an outer sleeve arranged between the two retaining frames; two left and right steel bar through-holes are vertically opened on the retaining frames, and two pairs of steel bar splints are arranged between the two retaining frames for sliding along the left and right directions, and the steel bar splints are all arc-shaped plates, and the two steel bar splints of each pair are respectively located on the left and right sides of a corresponding steel bar through-hole; two clamping adjustment blocks are arranged between the two retaining frames and between the two pairs of steel bar splints for sliding along the front and back directions, and the left and right sides of each clamping adjustment block have extrusion inclined surfaces that are in sliding contact with the outer side surfaces of the two middle steel bar splints respectively; the left and right sides of the outer sleeve and the positions corresponding to the two steel bar splints on both sides have extrusion locking panels generated after being compressed.

[0005] Furthermore, a cross-shaped slide groove consisting of a first slide groove and a second slide groove is opened on the inner side surface of the retaining frame, and the second slide groove is opened along the front-to-back direction located in the middle of the two steel bar perforations, and the first slide groove is opened along the left-right direction perpendicular to the center lines of the two steel bar perforations; the two pairs of steel bar clamps are slidably arranged in the upper and lower opposite first slide grooves; the two clamping adjustment blocks include a first clamping adjustment block and a second clamping adjustment block slidably arranged in the upper and lower opposite second slide grooves, and the first clamping adjustment block and the second clamping adjustment block are connected by multiple clamping adjustment bolts.

[0006] Furthermore, the first clamping adjustment block is provided with a plurality of bolt through holes spaced apart in the vertical direction, and the second clamping adjustment block is provided with a plurality of first threaded holes spaced apart in the vertical direction at corresponding intervals, and the clamping adjustment bolt is inserted from the outer end of a bolt through hole and screwed into the first threaded hole corresponding to the bolt through hole.

[0007] Furthermore, the retaining frame is an oblong block structure; the first slide groove and the second slide groove respectively penetrate the retaining frame in the left and right directions and the front and back directions; the outer sleeve is an oblong cylindrical structure, which includes two left and right oppositely arranged arc panels of an integrated structure and two front and rear flat plates connecting the two arc panels; a plurality of bolt avoidance through holes are provided on the two flat plates at positions corresponding to the bolt through holes and the first threaded holes; two extrusion locking panels are respectively located on the two arc panels at positions corresponding to the left and right ends of the first slide groove.

[0008] Furthermore, a plurality of protruding teeth are provided on the inner surface of the steel bar clamp; and the front and rear side surfaces of the steel bar clamp are both first sliding surfaces that are in sliding contact with the two side surfaces of the first sliding groove respectively.

[0009] Furthermore, one end of the first clamping adjustment block and the second clamping adjustment block are both rectangular, and the other end thereof are both isosceles trapezoidal; the left and right side surfaces of the rectangular end of the first clamping adjustment block are both second sliding surfaces that are in sliding contact with the two side surfaces of the second slide groove respectively, and the left and right side surfaces of the isosceles trapezoidal end of the first clamping adjustment block are both first extrusion inclined surfaces that are in sliding contact with one end of the outer surface of the two middle steel bar splints respectively; the left and right side surfaces of the rectangular end of the second clamping adjustment block are both third sliding surfaces that are in sliding contact with the two side surfaces of the second slide groove respectively, and the left and right side surfaces of the isosceles trapezoidal end of the second clamping adjustment block are both second extrusion inclined surfaces that are in sliding contact with the other end of the outer surface of the two middle steel bar splints respectively.

[0010] A mounting tool for mounting the above-mentioned integrated sleeve comprises a U-shaped extrusion bracket consisting of an end plate and two support plates, an oil cylinder fixed at the outer end of the end plate and whose piston rod extends between the two support plates, a movable extrusion die slidingly arranged at one end between the two support plates and fixedly connected to the piston rod, and a fixed extrusion die pluggable and fixed at the other end between the two support plates; an accommodating space for inserting the integrated sleeve in the left and right directions is formed between the fixed extrusion die and the movable extrusion die.

[0011] Furthermore, the fixed extrusion die is fixed between the two support plates by a limiting pin, and pin holes for inserting the limiting pin are provided on the fixed extrusion die and the two support plates.

[0012] Furthermore, the fixed extrusion die and the movable extrusion die each have an extrusion block protruding in the left and right directions in the middle of one end, and the height and width of the extrusion block are not greater than the bottom distance of the upper and lower first chutes and the width of the first chutes respectively.

[0013] Furthermore, a second threaded hole that is transparent from left to right is opened in the middle of the end plate, and the cylinder body of the oil cylinder is fixedly installed in the second threaded hole through threads.

[0014] The beneficial effects of the present invention are as follows: the present invention provides an integrated sleeve suitable for connecting double-layer steel bars, comprising an outer sleeve, two upper and lower retaining frames, two pairs of left and right steel bar clamps, two front and rear clamping adjustment blocks, and a plurality of clamping adjustment bolts; the installation tool of the integrated sleeve comprises an extrusion bracket, an oil cylinder, a movable extrusion die, a fixed extrusion die, and a limit pin. The clamping adjustment bolts can be used to make the two clamping adjustment blocks move relative to each other in the front-back direction, and push the two middle steel bar clamps to the left and right sides respectively, so that the two steel bar clamps initially clamp the upper and lower steel bars of the inner layer and the upper and lower steel bars of the outer layer from one side, and then the left and right ends of the outer sleeve are squeezed inward in the left and right directions by the installation tool, and the left and right ends of the outer sleeve are deformed by pressure, and then the two outer steel bar clamps are pushed to clamp the upper and lower steel bars of the inner layer and the upper and lower steel bars of the outer layer from the other side respectively, and the left and right ends of the outer sleeve are deformed by pressure to finally generate two left and right extrusion locking panels, and lock the steel bar clamps, while realizing the installation connection of the inner and outer layers of steel bars. The utility model can be used for the installation and connection of double-layer steel bar modules in fields such as nuclear power, and can also be used in general occasions with double-layer steel bars. It is easy to install and has high installation efficiency, which can effectively shorten the project construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the integrated sleeve of the utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the integrated sleeve of the utility model after the outer shell is removed.

[0017] Figure 3 It is a cross-sectional view of the integrated sleeve of the utility model before installation.

[0018] Figure 4 It is a cross-sectional view of the utility model after the integrated sleeve is installed.

[0019] Figure 5 It is a structural schematic diagram of the utility model after the integrated sleeve is installed.

[0020] Figure 6 It is a structural schematic diagram of the integrated sleeve installation tool of the utility model.

[0021] Figure 7It is a structural diagram of a double-layer steel bar module connected using an integrated sleeve.

[0022] In the figure: 11, outer sleeve, 12, retaining frame, 13, steel bar splint, 14, first clamping adjustment block, 15, second clamping adjustment block, 16, clamping adjustment bolt, 111, arc panel, 112, flat plate, 113, steel bar avoidance through hole, 114, extrusion locking panel, 121, first slide groove, 122, second slide groove, 123, steel bar through hole, 131, convex tooth, 132, first sliding surface, 141, second sliding surface, 142, first extrusion inclined surface, 143, bolt through hole, 151, third sliding surface, 152, second extrusion inclined surface, 153, first threaded hole, 21, oil cylinder, 22, piston rod, 23, movable extrusion die, 24, fixed extrusion die, 25, limit pin, 26, bracket, 261, accommodating space, 262, pin hole, 263, second threaded hole. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that the embodiments are only provided to help understand the present invention and should not be considered as specific limitations of the present invention.

[0024] like Figure 1-5 As shown, the present invention provides an integrated sleeve suitable for connecting double-layer steel bars, comprising two upper and lower opposing retainers 12 and a jacket 11 disposed between the two retainers 12, the upper and lower ends of the jacket 11 being fixedly connected to the peripheries of the two retainers 12. The retainers 12 are vertically provided with left and right steel bar holes 123, the center lines of the upper left and right steel bar holes 123 coinciding with the center lines of the lower left and right steel bar holes 123. Two pairs of steel bar clamps 13 are slidably disposed between the two retainers 12, each of which is an arc-shaped plate, and the two steel bar clamps 13 of each pair are located on the left and right sides of a corresponding steel bar hole 123. Two clamping adjustment blocks are slidably disposed between the two retainers 12 and between the two pairs of steel bar clamps 13, each of which has an extrusion slope on its left and right sides that slides in contact with the outer side surfaces of the two middle steel bar clamps 13. The jacket 11 has extrusion locking panels 114 on its left and right sides, corresponding to the two steel bar clamps 13 on both sides, which are generated when compressed.

[0025] When the integrated sleeve of the present invention is used to connect the upper and lower double-layer steel bar modules, the upper and lower inner steel bars and the upper and lower outer steel bars are respectively inserted into the outer sleeve 11 through the left and right steel bar through-holes 123 of the upper and lower retaining frames 12. When the front and rear clamping adjustment blocks move relative to each other, the extrusion slopes on their left and right sides can simultaneously apply force to the front and rear ends of the outer side surfaces of the two middle steel bar clamps 13, causing the two middle steel bar clamps 13 to be simultaneously squeezed and moved toward the center lines of the left and right steel bar through-holes 13, respectively. Then, the two middle steel bar clamps 13 clamp the inner and outer steel bars from one side, respectively. Then, the extrusion tool is used to simultaneously squeeze the extrusion locking panels 114 at the corresponding positions of the two steel bar clamps 13 on both sides toward the center lines of the left and right steel bar through-holes 13. The left and right extrusion locking panels 114 are squeezed and deformed, causing the two steel bar clamps 13 on both sides to move toward the center lines of the left and right steel bar through-holes 13, respectively. Then, the two steel bar clamps 13 clamp the inner and outer steel bars from the other side, respectively.

[0026] The inner side of the retainer 12 is provided with a cross-shaped slot consisting of a first slot 121 and a second slot 122. The second slot 122 extends in the front-to-back direction directly between the two steel bar through-holes 123, while the first slot 121 extends in the left-to-right direction perpendicular to the center lines of the two steel bar through-holes 123. Two pairs of steel bar clamps 13 are slidably mounted in two opposing first slots 121. Two clamping adjustment blocks include a first clamping adjustment block 14 and a second clamping adjustment block 15 that slide in the two opposing second slots 122. The first clamping adjustment block 14 and the second clamping adjustment block 15 are connected by a plurality of clamping adjustment bolts 16. The first clamping adjustment block 14 has a plurality of bolt through-holes 143 spaced apart in the vertical direction, while the second clamping adjustment block 15 has a plurality of first threaded holes 153 spaced apart in the vertical direction. The clamping adjustment bolt 16 is inserted from the outer end of one bolt through-hole 143 and screwed into the first threaded hole 153 corresponding to that bolt through-hole 143. The diameter of the bolt through hole 143 is between the diameters of the shank and the head of the clamping adjustment bolt 16 .

[0027] The clamping adjustment bolt 16 is used to drive the first clamping adjustment block 14 and the second clamping adjustment block 15 to move relative to each other in the front-rear direction, and when the two adjustment blocks move relative to each other, they can push the two middle steel bar clamps 13 to move toward the center lines of the two steel bar through-holes 123 on the retaining frame 12 respectively.

[0028] The retainer 12 is an oblong, block-shaped structure. A first slot 121 and a second slot 122 extend through the retainer 12 in the left-right and front-back directions, respectively. The inner cavity of the outer sleeve 11 is adapted to accommodate the retainer 12, with the upper and lower retainers 12 fixedly inserted into the upper and lower openings of the outer sleeve 11, respectively. The outer sleeve 11 is an oblong, cylindrical structure comprising two opposed, integrally formed left and right arc panels 111, and two front and rear flat panels 112 connecting the two arc panels 111. Multiple bolt clearance holes 113 are defined on the two flat panels 112, corresponding to the bolt holes 143 and the first threaded holes 153, respectively. The diameter of the bolt clearance holes 113 is larger than the diameter of the head of the clamping adjustment bolt 16. Two squeeze locking panels 114 are located on the two arc panels 111, corresponding to the left and right ends of the first slot 121.

[0029] A plurality of protruding teeth 131 are provided on the inner surface of the steel bar clamp 13, and the protruding teeth 131 are spiral or annular groove-shaped, so that the steel bar clamp 13 can better clamp the steel bar; the front and rear side surfaces of the steel bar clamp 13 are both first sliding surfaces 132 that are in sliding contact with the two side surfaces of the first slide groove 121 respectively, so that the steel bar clamp 13 can slide smoothly in the first slide groove 121 under the squeezing of the two clamping adjustment blocks.

[0030] The first clamping adjustment block 14 and the second clamping adjustment block 15 are both bilaterally symmetrical structures. One end of the first clamping adjustment block 14 and the second clamping adjustment block 15 are both rectangular, and the other end is an isosceles trapezoid, and the isosceles trapezoid is located on the inner side of the outer sleeve 11; the left and right side surfaces of the rectangular end of the first clamping adjustment block 14 are both second sliding surfaces 141 that are in sliding contact with the two side surfaces of the second slide groove 122, so that the first clamping adjustment block 14 can slide smoothly in the second slide groove 122; the left and right side surfaces of the isosceles trapezoid end of the first clamping adjustment block 14 are both first extrusion inclined surfaces 142 that are in sliding contact with one end of the outer surface of the two middle steel clamping plates 13, which is convenient for the first clamping adjustment block 14 to slide in the second The left and right sides of the rectangular end of the second clamping adjustment block 15 are both third sliding surfaces 151 that are in sliding contact with the two side surfaces of the second slide groove 122, so that the second clamping adjustment block 15 can slide smoothly in the second slide groove 122; the left and right sides of the isosceles trapezoidal end of the second clamping adjustment block 15 are both second extrusion inclined surfaces 152 that are in sliding contact with the other end of the outer surface of the two middle steel splints 13, which makes it easy for the second clamping adjustment block 15 to slide in the second slide groove 122 and is conducive to squeezing the two middle steel splints 13 at the same time.

[0031] like Figure 6As shown, the utility model also provides an installation tool for installing the above-mentioned integrated sleeve, including a U-shaped extrusion bracket 26 composed of an end plate and two support plates, an oil cylinder 21 fixed at the outer end of the end plate and whose piston rod 22 extends between the two support plates, a movable extrusion die 23 slidingly arranged at one end between the two support plates and fixedly connected to the piston rod 22, and a pluggable fixed extrusion die 24 at the other end fixedly arranged between the two support plates; an accommodating space 261 for the integrated sleeve to be inserted and placed in the left and right directions is formed between the fixed extrusion die 24 and the movable extrusion die 23.

[0032] The fixed extrusion die 24 and the movable extrusion die 23 are respectively used to extrude the left and right sides of the outer sleeve 11 inward along the left and right directions and the parts corresponding to the two outer steel bar clamps 13, so that the left and right parts are deformed and moved toward the center line of the adjacent steel bar perforation 123, and finally form two left and right extrusion locking panels 114, and the deformation movement pushes the two outer steel bar clamps 13 to move toward the center line.

[0033] The fixed extrusion die 24 is fixed between the two support plates by a limiting pin 25 . Pin holes 262 for inserting the limiting pin 25 are formed on the fixed extrusion die 24 and the two support plates.

[0034] The fixed extrusion die 24 and the movable extrusion die 23 each have an extrusion block protruding in the left and right directions in the middle of one end. The side of the extrusion block facing the outer sleeve 11 is an arc-shaped surface, and the inner surface radius of the arc-shaped surface is equal to the radius of the outer surface of the steel splint 13. The height and width of the extrusion block are not greater than the bottom distance of the upper and lower first chutes 121 and the width of the first chute 121, respectively.

[0035] A second threaded hole 263 that is transparent to the left and right is opened in the middle of the end plate, and the cylinder body of the oil cylinder 21 is fixedly installed in the second threaded hole 263 by means of threads.

[0036] As attached Figure 7The figure shows a schematic diagram of the structure of a double-layer steel bar module connected by the above-mentioned integrated sleeve, and the integrated sleeve is installed using the above-mentioned installation tool. First, put the integrated sleeve on the inner and outer two steel bars of the lower double-layer steel bar module. After the upper double-layer steel bar module is hoisted to the appropriate position, move the integrated sleeve upward and make it center the two lower steel bars and the two upper steel bars. Then adjust the clamping adjustment bolt 16 to move the first clamping adjustment block 14 and the second clamping adjustment block 15 in the outer sleeve 11 toward the middle. Use the two first extrusion bevels 142 and the two second extrusion bevels 152 to squeeze the two steel bar clamps 13 in the middle to the left and right sides respectively. At this time, the two steel bar clamps 13 initially clamp the inner and outer steel bars and generate friction to fix the integrated sleeve from moving downward. Then, pull out the limit pin 25 in the installation tool, remove the fixed extrusion die 24, and insert the installation tool into the integrated The sleeve is then positioned, and the fixed extrusion die 24 is installed into the bracket 26, and the limit pin 25 is inserted into the bracket 26. The two extrusion blocks on the fixed extrusion die 24 and the movable extrusion die 23 are respectively aligned with the two extrusion locking panels 114 of the outer sleeve 11, and the oil cylinder 21 of the installation tool is started. The piston rod 22 of the oil cylinder 21 pushes the movable extrusion die 23 to extrude one end of the outer sleeve 11, and at the same time, the fixed extrusion die 24 extrude the other end of the outer sleeve. The two pairs of steel bar splints 13 bite the steel bars tightly with the convex teeth 131. After being squeezed into place, the extrusion locking panel 114 suppresses the movement of the steel bar splints 13; finally, the piston rod 22 is moved in the opposite direction, the limit pin 25 is pulled out, the fixed extrusion die 24 is removed, and the installation tool is withdrawn. At this time, the connection and installation of the two layers of steel bars are completed.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated sleeve suitable for connecting double-layer steel bars, characterized in that: The invention comprises two upper and lower retaining frames (12) arranged opposite to each other and a jacket (11) arranged between the two retaining frames (12); two left and right steel bar through-holes (123) are vertically opened on the retaining frame (12); two pairs of steel bar clamps (13) are arranged between the two retaining frames (12) for sliding along the left and right directions, the steel bar clamps (13) are all arc-shaped plates, and the two steel bar clamps (13) of each pair are respectively located on the left and right sides of a corresponding steel bar through-hole (123); two clamping adjustment blocks are arranged between the two retaining frames (12) and between the two pairs of steel bar clamps (13) for sliding along the front and back directions, and the left and right sides of each clamping adjustment block have extrusion inclined surfaces respectively in sliding contact with the outer side surfaces of the two middle steel bar clamps (13); the left and right sides of the jacket (11) and the positions corresponding to the two steel bar clamps (13) on both sides have extrusion locking panels (114) generated after being compressed.

2. The integrated sleeve suitable for double-layer steel bar connection according to claim 1, characterized in that: The inner side surface of the retaining frame (12) is provided with a cross-shaped slide groove consisting of a first slide groove (121) and a second slide groove (122), and the second slide groove (122) is opened along the front-back direction located in the middle of the two steel bar through-holes (123), and the first slide groove (121) is opened along the left-right direction perpendicular to the center lines of the two steel bar through-holes (123); the two pairs of steel bar clamps (13) are slidably set in the upper and lower opposite first slide grooves (121); the two clamping adjustment blocks include a first clamping adjustment block (14) and a second clamping adjustment block (15) slidably set in the upper and lower opposite second slide grooves (122), and the first clamping adjustment block (14) and the second clamping adjustment block (15) are connected by a plurality of clamping adjustment bolts (16).

3. The integrated sleeve suitable for connecting double-layer steel bars according to claim 2, characterized in that: The first clamping adjustment block (14) is provided with a plurality of bolt through holes (143) spaced apart in the vertical direction, and the second clamping adjustment block (15) is provided with a plurality of first threaded holes (153) spaced apart in the vertical direction. The clamping adjustment bolt (16) is inserted from the outer end of a bolt through hole (143) and screwed into the first threaded hole (153) corresponding to the bolt through hole (143).

4. The integrated sleeve suitable for connecting double-layer steel bars according to claim 3, characterized in that: The retaining frame (12) is an oblong block structure; the first slide groove (121) and the second slide groove (122) respectively penetrate the retaining frame (12) in the left-right direction and the front-back direction; the outer sleeve (11) is an oblong cylindrical structure, which includes two left and right arc panels (111) arranged opposite to each other and two front and back plane panels (112) connecting the two arc panels (111); a plurality of bolt avoidance through holes (113) are provided on the two plane panels (112) at positions corresponding to the bolt through holes (143) and the first threaded holes (153); and two extrusion locking panels (114) are respectively located on the two arc panels (111) at positions corresponding to the left and right ends of the first slide groove (121).

5. The integrated sleeve suitable for connecting double-layer steel bars according to claim 1, characterized in that: A plurality of protruding teeth (131) are provided on the inner surface of the steel bar clamp (13); and the front and rear side surfaces of the steel bar clamp (13) are both first sliding surfaces (132) that are in sliding contact with the two side surfaces of the first sliding groove (121), respectively.

6. The integrated sleeve suitable for connecting double-layer steel bars according to claim 2, characterized in that: One end of each of the first clamping adjustment block (14) and the second clamping adjustment block (15) is a rectangle, and the other end thereof is an isosceles trapezoid; the left and right side surfaces of the rectangular end of the first clamping adjustment block (14) are second sliding surfaces (141) that are in sliding contact with the two side surfaces of the second chute (122), respectively; the left and right side surfaces of the isosceles trapezoid end of the first clamping adjustment block (14) are first extrusion inclined surfaces (142) that are in sliding contact with one end of the outer surface of the two middle steel bar splints (13), respectively; the left and right side surfaces of the rectangular end of the second clamping adjustment block (15) are third sliding surfaces (151) that are in sliding contact with the two side surfaces of the second chute (122), respectively; the left and right side surfaces of the isosceles trapezoid end of the second clamping adjustment block (15) are second extrusion inclined surfaces (152) that are in sliding contact with the other end of the outer surface of the two middle steel bar splints (13), respectively.

7. An installation tool for installing the integrated sleeve according to any one of claims 1 to 6, characterized in that: The invention comprises a U-shaped extrusion bracket (26) consisting of an end plate and two support plates, an oil cylinder (21) fixed at the outer end of the end plate and having a piston rod (22) extending between the two support plates, a movable extrusion die (23) slidably arranged at one end between the two support plates and fixedly connected to the piston rod (22), and a pluggable fixed extrusion die (24) at the other end fixedly arranged between the two support plates; an accommodating space (261) for inserting and placing the integrated sleeve in the left and right directions is formed between the fixed extrusion die (24) and the movable extrusion die (23).

8. The installation tool according to claim 7, characterized in that The fixed extrusion die (24) is fixed between the two support plates via a limiting pin (25), and pin holes (262) for inserting the limiting pin (25) are provided on the fixed extrusion die (24) and the two support plates.

9. The installation tool according to claim 7, characterized in that The fixed extrusion die (24) and the movable extrusion die (23) each have an extrusion block protruding in the left and right directions in the middle of one end, and the height and width of the extrusion block are not greater than the distance between the bottoms of the upper and lower first chutes (121) and the width of the first chutes (121), respectively.

10. The installation tool according to claim 7, characterized in that A second threaded hole (263) that is transparent to the left and right is provided in the middle of the end plate, and the cylinder body of the oil cylinder (21) is fixedly mounted in the second threaded hole (263) via threads.

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