Double-point adjustable attachment jacking mechanism of nuclear island BRX factory building inner and outer shell building machine

Abstract

The utility model discloses a double-point adjustable attached jacking mechanism of a nuclear island BRX factory building inner and outer shell building machine, and relates to the technical field of building machine jacking. The top steel platform, the inner side frame body and the outer side frame body form an inverted U-shaped structure; the bottom of the top steel platform is provided with two sets of suspension frames in a hanging mode through hanging points of fixed pulleys and steel wire ropes, walking plates are arranged in the vertical distance between the inner side frame body and the outer side frame body at intervals, and folding walking plates which are as high as the walking plates after being put down are arranged on the opposite inner sides of the inner side frame body and the outer side frame body. Synchronous jacking construction of the inner side and the outer side can be achieved; the distance can be adjusted by rotating the thread rotating buckle through the distance adjusting screw rod, so that the construction efficiency is improved; the walking plate and the folding walking plate are convenient for workers to walk, and the folding walking plate is folded during lifting, so that the occupied space is not influenced; and compared with a traditional scaffold and a single-side building machine, the efficiency is higher, and the speed is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction machine jacking, in particular to a double-point adjustable attachment jacking mechanism for a nuclear island BRX plant inner and outer shell construction machine. Background Art

[0002] According to the process requirements, the nuclear island buildings of power plants are generally divided into reactor buildings (BRX), nuclear fuel buildings (BFX), safety buildings (BSX), reactor gantry buildings (BRP), nuclear auxiliary buildings (BNX), radioactive waste treatment buildings (BWX), access buildings (BAX), additional cooling water and nuclear island fire water buildings (BEJ), diesel generator buildings (BDX), etc. Especially for the reactor building (BRX), its concrete design strength grade and durability are particularly high.

[0003] The reactor building (BRX) or nuclear island BRX building has a specific shape of a cylindrical shell on the side and a hood on the top. During construction, the cylindrical shell is constructed first and then the hood. Since the nuclear island BRX building is huge and has high requirements for the shell strength; if the traditional scaffolding method is used for construction, the construction speed is slow and the construction frame is large, which is not convenient for actual operation; and the building machine is currently widely used in the field of high-rise building construction. If it can be combined with the structural characteristics of the building machine and applied to the construction scene of the inner and outer shell of the nuclear island BRX building, the construction efficiency of the nuclear island BRX building will be greatly improved; during building construction, the formwork used for pouring concrete needs to be supported by a complex bracket system built from bottom to top, which cannot be easily disassembled and adjusted, and the reuse rate is relatively low; therefore, the technical solution proposes a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of the nuclear island BRX building. Utility Model Content

[0004] The utility model provides a double-point adjustable attached jacking mechanism for the inner and outer shells of the BRX building in the nuclear island. The jacking mechanism of the building consists of a top steel platform connected to the bottom of the suspension arm through a connecting arm, and an inner frame body and an outer frame body located below the top steel platform, forming an inverted "U" shape structure. The safety shell outer wall structure being constructed is located between the inner frame body and the outer frame body, enabling synchronous jacking construction of the inner and outer sides of the safety shell of the BRX building in the nuclear island. The inner frame body and the outer frame body are symmetrically arranged, and the jacking components include a suspension boot, a climbing guide rail, a climbing frame head, an upper hoist, a lower hoist, a jacking oil cylinder, and a climbing formwork frame body adjusting device. Through the cooperation of each component, a stable and synchronous inner and outer jacking action can be achieved, with high construction efficiency and stability, meeting the construction requirements of large-volume and high-height BRX buildings in the nuclear island. There are two groups of suspension brackets hung by fixed pulleys and steel wire ropes below the top steel platform, which can provide a mounting bracket for the casting formwork and can adjust the spacing through a spacing adjusting screw and a rotating thread rotating buckle. The corresponding jacking mechanism as a whole can achieve the lifting adjustment of the frame body and the double-point adjustment of the height of the suspension bracket, enabling the formwork to follow the suspension bracket to perform an attached lifting action, improving the construction efficiency. And the frame body adopts a structure of splicing square tubes with bolt locking, and the frame body of different heights can be installed according to the requirements of the adaptable height, which is convenient and fast. There are also walking boards and folding walking boards installed on the frame body, which are convenient for workers to walk, and the folding walking boards are retracted during lifting without affecting the space occupation. In summary, compared with the traditional scaffolding and single-sided building machines, the efficiency is higher and the speed is faster. In summary, the problems in the background technology are solved.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] A double-point adjustable attached jacking mechanism for the inner and outer shells of the BRX building in the nuclear island of the utility model is used for jacking during the construction of the safety shell outer wall of the BRX building in the nuclear island, and includes a top steel platform connected below the connecting arm at the bottom of the suspension arm, an inner frame body and an outer frame body installed at the bottom of the top steel platform. The top steel platform, the inner frame body and the outer frame body form an inverted "U" shape structure, and the safety shell outer wall structure being constructed is located between the inner frame body and the outer frame body;

[0007] The inner frame body and the outer frame body are symmetrically installed with jacking mechanisms at the relative side parts below; the jacking mechanism includes a suspension boot installed on the side wall of the safety shell outer wall structure that has reached the structural strength through embedded parts, a climbing guide rail vertically hung on the suspension boot, a climbing frame head cooperating with the suspension boot, an upper hoist connected below the climbing frame head at the upper part, a lower hoist connected to the side wall of the climbing guide rail, a jacking oil cylinder with both ends respectively connected to the upper hoist and the lower hoist, and a climbing formwork frame body adjusting device;

[0008] Two groups of suspension frames are installed at the bottom of the top steel platform through the suspension points of the fixed pulley and the steel wire ropes. The suspension frames include a vertically arranged square tube, an angle steel vertically arranged on the side of the square tube, a hanging buckle welded and fixed to the side of the angle steel and fixedly connected to the end of the steel wire rope, a positioning sleeve arranged in the square tube, a threaded rotating buckle arranged on the outer side of the positioning sleeve, and a spacing adjustment screw connected between the two groups of suspension frames. The spacing adjustment screw passes through the spacing adjustment screw and the angle steel and is threadedly connected to the threaded rotating buckle. The spacing between the two groups of suspension frames is adjusted by rotating the threaded rotating buckle.

[0009] A walking board is arranged at a vertical distance between the inner frame and the outer frame, and a folding walking board having the same height as the walking board is installed on the inner side of the inner frame and the outer frame relative to each other;

[0010] The inner frame and the outer frame are both a frame structure formed by sleeves with connecting holes, the upper and lower sleeves are plugged and connected, and are locked and fixed into one body after locking bolts pass through the connecting holes.

[0011] Furthermore, fixing holes for fixing the template are formed at equal intervals on the side surface of the angle steel.

[0012] Furthermore, the foldable walking board is hingedly connected to the side of the walking board via a hinge structure.

[0013] Furthermore, the climbing frame head is a concave structure, and the climbing frame head is connected to the hanging shoe by a load-bearing pin. Guide rail limiting rollers that abut against the side scrapers of the climbing guide rail are relatively installed on both sides of the climbing frame head; a load-bearing pin groove that engages with the load-bearing pin installed on the hanging shoe is arranged at the bottom of the front side of the two side plates; a U-shaped connecting plate that engages with the side connecting block of the inner lower frame or the outer lower frame is installed on the rear side of the main body of the climbing frame head, and the U-shaped connecting plate and the connecting block are fixedly connected by a pin shaft; a connecting seat connected to the top of the upper hoist through a connecting shaft is arranged at the bottom of the main body of the climbing frame head.

[0014] Furthermore, the load-bearing pin slot opens downward and is a U-shaped opening; the upper parts of the two side plates of the climbing frame head body conflict with the safety pins laterally installed on the hanging boot.

[0015] Furthermore, the upper hoist includes a U-shaped lifting frame body, positioning plates arranged at the upper and lower ends of the lifting frame body and symmetrically arranged on the left and right, and two groups of open limit grooves symmetrically arranged on the left and right and engaged with the side of the climbing guide rail, the open limit groove is formed by three limit plates vertically surrounding it and the openings of the two open limit grooves are arranged opposite to each other, and a limit roller for guiding the climbing guide rail is installed on the rear side of the open limit groove; two mounting plates are vertically arranged in the lifting frame body, and a tongue-shaped load-bearing tongue block corresponding to the positioning hole on the surface of the climbing guide rail is rotatably installed between the two mounting plates through a reversing pin shaft, a reversing shaft sleeve is installed at one end of the reversing pin shaft, and the reversing shaft sleeve is connected to a tension spring on the support between the bolt and the bottom wall of the lifting frame body; a connecting support is arranged at the bottom of the lifting frame body.

[0016] Furthermore, the lower hoist has the same structure as the upper hoist and is arranged in a centrally symmetrical manner from top to bottom; the connecting supports of the upper hoist and the lower hoist are respectively hingedly connected to the top and bottom of the lifting cylinder; a pin shaft seat is provided at the bottom of the lower hoist, and the pin shaft seat is hingedly connected to the suspension shoe through a connecting pin shaft; the two ends of the limit plate are arranged as outward expansion structures for easy guidance; the two groups of the open limit grooves are vertically arranged between the upper and lower positioning plates on the left side and between the upper and lower positioning plates on the right side.

[0017] Furthermore, the climbing formwork frame adjustment device is installed on a side of the inner lower frame or the outer lower frame close to the climbing guide rail through a connecting piece;

[0018] The climbing formwork frame adjustment device includes a concave-shaped supporting leg body, an adjusting screw threadedly installed in threaded holes on both sides of the supporting leg body, a supporting plate arranged at the front end of the adjusting screw, and a rotating adjusting block with a through hole arranged at the rear end of the adjusting screw; a mudguard with an inverted U-shaped cross-section is detachably installed on the upper part of the adjusting screw.

[0019] Furthermore, the fender includes a first fender and a second fender; the first fender is fixedly installed on the front side of the supporting leg body by a first bolt, and the second fender is fixedly installed on the side of the connecting block on the rear side of the supporting plate by a second bolt; the second fender is arranged in a sleeve arrangement with the first fender, and the second fender moves forward and backward with the supporting plate.

[0020] Furthermore, a first connecting plate fixedly connected to the connecting member via a third bolt is provided on the rear side of the supporting leg body.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) The jacking mechanism of this construction machine consists of a top steel platform connected to the bottom of the suspension arm through a connecting arm, and an inner frame and an outer frame located below the top steel platform, forming an inverted "凵" - shaped structure. The safety shell outer wall structure being constructed is located between the inner frame and the outer frame, enabling synchronous jacking construction on both the inner and outer sides of the containment of the nuclear island BRX plant.

[0023] (2) The inner frame and the outer frame are symmetrically arranged. The jacking components include suspension boots, climbing guide rails, climbing frame heads, upper hoisting machines, lower hoisting machines, jacking oil cylinders, and climbing formwork frame adjusting devices. Through the cooperation of these components, a stable and synchronous inner - outer jacking action can be achieved, with high construction efficiency and stability, meeting the construction requirements of large - volume and high - height nuclear island BRX plants.

[0024] (3) Two groups of suspension brackets are hung below the top steel platform through fixed pulleys and steel wire ropes, which can provide a mounting bracket for the casting formwork and can adjust the spacing through a spacing adjustment screw and a rotating thread rotating buckle. The corresponding jacking mechanism as a whole can achieve the lifting adjustment of the frame and the double - point adjustment of the height of the suspension brackets, enabling the formwork to follow the suspension brackets to perform attachment lifting actions, improving the construction efficiency.

[0025] (4) Moreover, the frame adopts a structure of splicing square tubes with bolt locking, and can install frames of different heights according to the requirements of adaptable heights, which is convenient and fast.

[0026] (5) A walking board and a folding walking board are also installed on the frame, which is convenient for workers to walk, and the folding walking board is retracted during lifting without affecting the space occupancy.

[0027] (6) Compared with traditional scaffolding and single - sided building machines, it has higher efficiency and faster speed.

[0028] Of course, it is not necessary for any product implementing the present utility model to achieve all the above - mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a double - point adjustable attachment jacking mechanism for an inner and outer shell construction machine of a nuclear island BRX plant of the present utility model;

[0031] Figure 2 For Figure 1 Specific usage scenario diagram;

[0032] Figure 3 for Figure 1 A partial enlarged view of position A in the middle;

[0033] Figure 4 It is a structural diagram of the climbing frame head;

[0034] Figure 5 for Figure 4 Schematic diagram of the structure from the perspective of middle B;

[0035] Figure 6 It is the structure and connection diagram of the jacking cylinder, the upper hoist and the lower hoist;

[0036] Figure 7 for Figure 6 Schematic diagram of the structure of the middle and upper hoist;

[0037] Figure 8 for Figure 7 The main view of the structure;

[0038] Fig. 9 for Figure 7 A side view of the structure;

[0039] Fig.10 for Figure 7 A top view of the structure;

[0040] Fig.11 It is a structural schematic diagram of the climbing formwork frame adjustment device;

[0041] Fig.12 for Fig.11 Structural diagram from the middle C perspective;

[0042] Fig.13 for Figure 1 A partial enlarged view of the D position in the middle;

[0043] Fig.14 is a structural schematic diagram of a connecting piece;

[0044] Fig.15 It is a schematic diagram of the structure of two sets of suspension frames;

[0045] Fig.16 It is a top view of the structural relationship between the square tube, angle steel, spacing adjustment screw and threaded rotating buckle;

[0046] Fig.17 A structural relationship diagram of the folding walking board and the walking board;

[0047] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0048] 1-suspension arm, 101-connecting arm, 102-top steel platform, 103-fixed pulley, 104-wire rope, 2-outer frame, 201-casing, 202-locking bolt, 203-walking board, 205-folding walking board, 2051-hinge structure, 3-square tube, 301-hanging buckle, 302-angle steel, 303-spacing adjustment screw, 304-threaded rotating buckle, 4-climbing guide rail, 41-embedded parts, 42-embedded parts, 421-safety pin, 422-load-bearing pin, 423-pin shaft, 43-climbing frame head, 431-U-shaped connecting plate, 432-guide rail limit roller, 433-connecting seat, 434-bearing Heavy pin slot, 44-lifting cylinder, 45-upper hoist, 451-lifting frame, 452-mounting plate, 453-limiting plate, 454-reversing pin, 455-tension spring, 456-reversing sleeve, 457-connecting support, 458-load-bearing tongue block, 459-positioning plate, 46-lower hoist, 47-climbing formwork frame adjustment device, 471-support leg body, 472-first connecting plate, 473-mudguard, 474-adjusting screw, 475-rotational adjustment block, 476-connecting block, 477-support plate, 478-limiting roller, 479-connecting piece, 5-containment outer wall structure, 6-inner frame. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] In the description of the present invention, it should be understood that the terms "lower", "top", "inside", "outside", "upper", "lower", "vertical" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] See also Figure 1-17As shown in the figure, a double-point adjustable attachment lifting mechanism for the inner and outer shells of the BRX building in the nuclear island of the utility model is used for lifting when constructing the outer wall of the containment of the BRX building in the nuclear island. It includes a top steel platform 102 connected below the connecting arm 101 at the bottom of the suspension arm 1, an inner frame body 6 and an outer frame body 2 installed at the bottom of the top steel platform 102. The top steel platform 102, the inner frame body 6 and the outer frame body 2 form an inverted "U" - shaped structure, and the constructed containment outer wall structure 5 is located between the inner frame body 6 and the outer frame body 2; the connecting arm 101 at the bottom of the suspension arm 1 can be connected through the lifting head of a tower crane or a crane and can be stably suspended.

[0052] Lifting mechanisms are symmetrically installed on the relatively side parts below the inner frame body 6 and the outer frame body 2; the lifting mechanism includes a suspension boot 42 installed on the side wall of the containment outer wall structure 5 that has reached the structural strength through a pre - embedded part 41, a climbing guide rail 4 vertically hung on the suspension boot 42, a climbing frame head 43 matched with the suspension boot 42, an upper hoist 45 connected below the upper climbing frame head 43, a lower hoist 46 connected to the side wall of the climbing guide rail 4, a lifting oil cylinder 44 with both ends respectively connected to the upper hoist 45 and the lower hoist 46, and a climbing formwork frame body adjusting device 47.

[0053] Two groups of suspension brackets are hung and installed at the bottom of the top steel platform 102 through the hanging points of fixed pulleys 103 via steel wires 104. The suspension brackets include a square tube 3 arranged vertically, an angle steel 302 arranged vertically on the side of the square tube 3, a hanging buckle 301 welded and fixed on the side of the angle steel 302 and fixedly connected to the end of the steel wire 104, a positioning sleeve arranged in the square tube 3, a threaded rotary buckle 304 arranged on the outer side of the positioning sleeve, and a spacing adjusting screw 303 connecting between the two groups of suspension brackets. The spacing adjusting screw 303 penetrates through the spacing adjusting screw 303 and the angle steel 302 and is threadedly connected to the threaded rotary buckle 304, and the spacing between the two groups of suspension brackets is adjusted by rotating the threaded rotary buckle 304.

[0054] Walking plates 203 are spaced at intervals in the vertical distance between the inner frame body 6 and the outer frame body 2. Folding walking plates 205 with the same height as the walking plates 203 after being put down are installed on the relative inner sides of the inner frame body 6 and the outer frame body 2; of course, corresponding folding walking plates 205 can also be installed on the outer sides of the inner frame body 6 and the outer frame body 2, which also belong to the protection scope of this technical solution.

[0055] Both the inner frame body 6 and the outer frame body 2 adopt a frame - type structure formed by sleeving and connecting with sleeves 201 with connection holes. The upper and lower sleeves 201 are inserted and connected to each other, and are locked and fixed into one body by passing locking bolts 202 through the connection holes.

[0056] Among them, fixing holes for fixing the template are opened at equal intervals on the side of the angle steel 302; the corresponding template is fixed and installed with bolts, iron wires, etc. The specific template installation form is selected and installed according to the needs of the adaptive scene. The style and specific installation form of the template are not the protection points of this technical solution, but belong to the conventional technical means in this field, which can be freely selected and adaptively adjusted, and will not be elaborated in this specification.

[0057] Among them, the folding walking board 205 is hingedly connected to the side of the walking board 203 through a hinge structure 2051; the intersection structure 2051 in this specific embodiment chooses to adopt a hinge structure in which a sleeve and a rotating shaft cooperate. Of course, other forms of hinge structures that can produce the same effect also belong to the protection scope of this technical solution.

[0058] Among them, the climbing frame head 43 is a concave structure, and the climbing frame head 43 is connected to the hanging shoe 42 through a load-bearing pin 422. Guide rail limiting rollers 432 that abut against the side scrapers of the climbing guide rail 4 are relatively installed on both sides of the climbing frame head 43; a load-bearing pin slot 434 that engages with the load-bearing pin 422 installed on the hanging shoe 42 is arranged at the bottom of the front side of the two side plates; a U-shaped connecting plate 431 that is engaged with the side connecting block of the inner lower frame 21 or the outer lower frame 31 is installed on the rear side of the main body of the climbing frame head 43, and the U-shaped connecting plate 431 is fixedly connected to the connecting block through a pin shaft 423; a connecting seat 433 that is connected to the top of the upper hoist 45 through a connecting shaft is arranged at the bottom of the main body of the climbing frame head 43.

[0059] The load-bearing pin slot 434 opens downward and is a U-shaped opening; the upper parts of the two side plates of the main body of the climbing frame head 43 are in conflict with the safety pin 421 installed laterally on the hanging shoe 42 .

[0060] The lifting of the inner frame or the outer frame is that the lifting system drives the inner frame or the outer frame upward by lifting the climbing frame head 43. There is a connecting seat 433 at the lower end of the climbing frame head 43. The climbing frame head 4 is connected with the upper hoist 45 by The inner side of the climbing frame head 4 is provided with four guide rail limiting rollers 432, which together with the guide rail limiting plate in the hanging shoe 42 limit and guide the climbing guide rail 4. The connection device between the climbing frame and the hanging shoe designed in this technical solution has high strength, light weight, convenient installation, large bearing capacity, good reliability, and greatly increases the safety during construction.

[0061] Among them, the upper hoist 45 includes a U-shaped lifting frame body 451, positioning plates 459 arranged at the upper and lower ends of the lifting frame body 451 and symmetrically arranged on the left and right, and two groups of open limiting grooves arranged symmetrically on the left and right and engaged with the side of the climbing guide rail 4, the open limiting groove is formed by three limiting plates 453 vertically surrounded and the openings of the two open limiting grooves are arranged opposite to each other, and a limiting roller 478 for guiding the climbing guide rail 4 is installed on the rear side of the open limiting groove; two mounting plates 452 are vertically arranged in the lifting frame body 451, and a tongue-shaped load-bearing tongue block 458 corresponding to the positioning hole on the surface of the climbing guide rail 4 is rotatably installed between the two mounting plates 452 through a reversing pin shaft 454, a reversing shaft sleeve 456 is installed at one end of the reversing pin shaft 454, and the reversing shaft sleeve 456 is connected to a tension spring 455 on a support between the bottom wall of the lifting frame body 451 through bolts; a connecting support 457 is arranged at the bottom of the lifting frame body 451.

[0062] Among them, the lower hoist 46 has the same structure as the upper hoist 45, and is arranged symmetrically from top to bottom; the connecting support 457 of the upper hoist 45 and the lower hoist 46 is respectively hingedly connected to the top and bottom of the jacking cylinder 44; a pin shaft seat is provided at the bottom of the lower hoist 46, and the pin shaft seat is hingedly connected to the suspension shoe 42 through a connecting pin shaft; the two ends of the limit plate 453 are arranged as outward expansion structures for easy guidance; two groups of open limit grooves are vertically arranged between the upper and lower positioning plates 459 on the left side and between the upper and lower positioning plates 459 on the right side.

[0063] The climbing formwork frame adjustment device 47 is installed on the side of the inner lower frame 21 or the outer lower frame 31 close to the climbing guide rail 4 through the connecting piece 479;

[0064] The upper hoist 45 has a support connected to the lifting cylinder 44 at the lower end, and is connected to the lifting cylinder 44 by a pin shaft. The lower hoist 46 has a support connected to the lifting cylinder 44 at the upper end, and is connected to the lifting cylinder 44 by a pin shaft. The lower end has a support connected to the suspension shoe 42, and is connected to the suspension shoe 42 by a pin shaft. The hoist load-bearing tongue block 458 is connected to the upper frame or the lower frame by a reversing pin shaft 454, and the reversing pin shaft 454 is connected to the reversing sleeve 456 by bolts. One end of the tension spring 455 is connected to the bolt on the reversing sleeve 456, and the other end is connected to the support on the hoist frame. The tension spring 455 ensures that the load-bearing tongue block 458 does not deflect when the load-bearing tongue block 458 is against the climbing guide rail 4. By changing the direction of the hoist load-bearing tongue block 458, the climbing guide rail 4 or the hoist is supported. The main material of the hoist frame is welded from BS700 high-strength structural steel, which has the characteristics of high strength and light weight. The load-bearing tongue of the hoist is made of 3Cr2Mo die steel, which has good comprehensive mechanical properties and high hardenability. It can make steel with larger cross-sections obtain more uniform hardness and can bear a maximum weight of 50T.

[0065] The direction of the load-bearing tongue in the hoist is changed by the reversing shaft in the hoist to realize the functional conversion of the lifting guide rail and the lifting cylinder. When the guide rail needs to be lifted, turn the handle on the reversing shaft so that the load-bearing blocks in the upper and lower hoists are aligned to push up the guide rail, and the load-bearing tongue is against the upper end of the guide rail ladder. Then operate the valve switch and start the hydraulic system, and the guide rail can climb step by step according to the cylinder stroke. After the climbing is completed, the load-bearing tongue of the hanging shoe is used to press against the upper end of the guide rail ladder to ensure that the guide rail does not fall. When the hoist and the cylinder need to be lifted, turn the handle on the reversing shaft so that the load-bearing tongue in the upper and lower hoists is pressed against the lower end of the guide rail ladder, operate the valve switch, start the hydraulic system, the cylinder extends to lift the upper hoist, and the load-bearing tongue of the upper hoist is pressed against the lower end of the guide rail ladder to complete the lifting of the upper hoist. Then remove the connecting pin shaft between the lower hoist and the suspension shoe, start the hydraulic system, shrink the oil cylinder, lift the lower hoist, and the lower hoist bearing tongue presses against the lower end of the guide rail ladder to complete the lifting of the lower hoist. Repeat this action to the next construction position.

[0066] The climbing formwork frame adjustment device 47 includes a concave-shaped supporting leg body 471, an adjusting screw rod 474 threadedly installed in the threaded holes on both sides of the supporting leg body 471, a supporting plate 477 arranged at the front end of the adjusting screw rod 474, and a rotating adjustment block 475 with a through hole arranged at the rear end of the adjusting screw rod 474; a mudguard 473 with an inverted U-shaped cross-section is detachably installed on the upper part of the adjusting screw rod 474.

[0067] Among them, the fender 473 includes a first fender and a second fender; the first fender is fixedly installed on the front side of the support leg body 471 by a first bolt, and the second fender is fixedly installed on the side of the connecting block 476 on the rear side of the support plate 477 by a second bolt; the second fender is arranged in a sleeve arrangement with the first fender, and the second fender moves forward and backward with the support plate 477.

[0068] Among them, a first connecting plate 472 is provided on the rear side of the supporting leg body 471 and is fixedly connected to the connecting member 479 by a third bolt.

[0069] During structural construction, the frame support leg adjustment screw 474 is pressed against the concrete structure surface to keep the frame parallel to the concrete structure surface, which can effectively ensure the stability of the climbing formwork frame. When the climbing formwork frame needs to be lifted, the adjustment screw 474 is turned to separate the leg plate from the concrete structure surface. After the lifting is completed, the adjustment screw is turned to press the support plate against the concrete structure surface and keep the frame parallel to the structure surface.

[0070] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant, used for jacking up the outer wall of the containment shell of a nuclear island BRX plant during construction, characterized in that: It includes a top steel platform (102) connected below the bottom connecting arm (101) of the suspension arm (1), an inner frame body (6) and an outer frame body (2) installed at the bottom of the top steel platform (102). The top steel platform (102), the inner frame body (6) and the outer frame body (2) form an inverted "U" - shaped structure, and the constructed containment wall structure (5) is located between the inner frame body (6) and the outer frame body (2). Lifting mechanisms are symmetrically installed on the relatively side parts below the inner frame body (6) and the outer frame body (2). The lifting mechanism includes a suspension boot (42) installed on the side wall of the containment wall structure (5) with achieved structural strength through embedded parts (41), a climbing guide rail (4) vertically hung on the suspension boot (42), a climbing frame head (43) cooperating with the suspension boot (42), an upper hoist (45) connected below the upper climbing frame head (43), a lower hoist (46) connected to the side wall of the climbing guide rail (4), a lifting oil cylinder (44) with both ends respectively connected to the upper hoist (45) and the lower hoist (46), and a climbing formwork frame body adjusting device (47). Two groups of suspension brackets are hung and installed at the bottom of the top steel platform (102) through the hanging points of fixed pulleys (103) via steel wires (104). The suspension bracket includes a vertically - arranged square tube (3), an angle steel (302) vertically arranged on the side of the square tube (3), a hanging buckle (301) welded and fixed on the side of the angle steel (302) and fixedly connected to the end of the steel wire (104), a positioning sleeve arranged inside the square tube (3), a threaded rotary buckle (304) arranged on the outer side of the positioning sleeve, and a spacing adjusting screw (303) connecting between the two groups of suspension brackets. The spacing adjusting screw (303) penetrates through the spacing adjusting screw (303) and the angle steel (302) and is thread - connected to the threaded rotary buckle (304), and the spacing between the two groups of suspension brackets is adjusted by rotating the threaded rotary buckle (304). Walking plates (203) are spaced at intervals in the vertical distance between the inner frame body (6) and the outer frame body (2). A folding walking plate (205) with the same height as the walking plate (203) after being put down is installed on the relative inner sides of the inner frame body (6) and the outer frame body (2). Both the inner frame body (6) and the outer frame body (2) adopt a frame - type structure formed by sleeving and connecting with sleeves (201) with connection holes. The upper and lower sleeves (201) are inserted and connected, and are locked and fixed into one body by passing locking bolts (202) through the connection holes.

2. According to claim 1, a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant is characterized in that: Fixing holes for fixing templates are equally spaced on the side of the angle steel (302).

3. According to claim 1, a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant is characterized in that: The folding walking plate (205) is hinged to the side of the walking plate (203) through a hinge structure (2051).

4. According to claim 1, a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant is characterized in that: The climbing frame head (43) is a concave structure, and the climbing frame head (43) is connected to the hanging shoe (42) through a load-bearing pin (422). Guide rail limiting rollers (432) that abut against the side scrapers of the climbing guide rail (4) are installed on both sides of the climbing frame head (43). A load-bearing pin slot (434) that engages with the load-bearing pin (422) installed on the hanging shoe (42) is arranged at the bottom of the front side of the two side plates; a U-shaped connecting plate (431) that is engaged with the side connecting block of the inner lower frame (21) or the outer lower frame (31) is installed on the rear side of the main body of the climbing frame head (43), and the U-shaped connecting plate (431) is fixedly connected to the connecting block through a pin shaft (423); a connecting seat (433) that is connected to the top of the upper hoist (45) through a connecting shaft is arranged at the bottom of the main body of the climbing frame head (43).

5. A double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant according to claim 4, characterized in that: The load-bearing pin slot (434) opens downward and is a U-shaped opening; the upper parts of the two side plates of the main body of the climbing frame head (43) are in conflict with the safety pin (421) installed laterally on the hanging shoe (42).

6. According to claim 1, a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant is characterized in that: The upper hoist (45) comprises a U-shaped lifting frame body (451), positioning plates (459) arranged at the upper and lower ends of the lifting frame body (451) and arranged symmetrically on the left and right, and two groups of open limiting grooves arranged symmetrically on the left and right and engaged with the side of the climbing guide rail (4), the open limiting groove is formed by three limiting plates (453) vertically surrounding and the openings of the two open limiting grooves are arranged opposite to each other, and a limiting roller (478) is installed at the rear side of the open limiting groove to guide the climbing guide rail (4); the lifting frame body (4 51) are vertically arranged with two mounting plates (452), and a tongue-shaped load-bearing tongue block (458) corresponding to the positioning hole on the surface of the climbing guide rail (4) is rotatably installed between the two mounting plates (452) through a reversing pin shaft (454), and a reversing shaft sleeve (456) is installed at one end of the reversing pin shaft (454), and the reversing shaft sleeve (456) is connected to a tension spring (455) on a support between the bottom wall of the lifting frame body (451) through bolts; a connecting support (457) is arranged at the bottom of the lifting frame body (451).

7. A double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant according to claim 6, characterized in that: The lower hoist (46) has the same structure as the upper hoist (45) and is arranged symmetrically from top to bottom; the connecting support (457) of the upper hoist (45) and the lower hoist (46) is respectively hingedly connected to the top and bottom of the lifting cylinder (44); a pin shaft seat is provided at the bottom of the lower hoist (46), and the pin shaft seat is hingedly connected to the suspension boot (42) through a connecting pin shaft; the two ends of the limit plate (453) are arranged as an outward expansion structure for easy guidance; the two groups of the open limit grooves are vertically arranged between the upper and lower positioning plates (459) on the left side and between the upper and lower positioning plates (459) on the right side.

8. According to claim 1, a double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant is characterized in that: The climbing formwork frame adjusting device (47) is installed on a side of the inner lower frame (21) or the outer lower frame (31) close to the climbing guide rail (4) through a connecting piece (479); The climbing formwork frame adjustment device (47) comprises a concave-shaped support leg body (471), an adjustment screw (474) threadedly mounted in threaded holes on both sides of the support leg body (471), a support plate (477) arranged at the front end of the adjustment screw (474), and a rotary adjustment block (475) with a through hole arranged at the rear end of the adjustment screw (474); a mudguard (473) with an inverted U-shaped cross section is detachably mounted on the upper part of the adjustment screw (474).

9. A double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant according to claim 8, characterized in that: The mudguard (473) comprises a first mudguard and a second mudguard; the first mudguard is fixedly mounted on the front side of the supporting leg body (471) by a first bolt, and the second mudguard is fixedly mounted on the side of the connecting block (476) at the rear side of the supporting plate (477) by a second bolt; the second mudguard is sleeved with the first mudguard, and the second mudguard moves forward and backward following the supporting plate (477).

10. A double-point adjustable attachment jacking mechanism for the inner and outer shell construction machine of a nuclear island BRX plant according to claim 8, characterized in that: A first connecting plate (472) is provided on the rear side of the supporting leg body (471) and is fixedly connected to the connecting member (479) via a third bolt.

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