CN116104287A - Scaffold system without supporting points at bottom of near wall surface of building and erection method - Google Patents
Scaffold system without supporting points at bottom of near wall surface of building and erection method Download PDFInfo
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- CN116104287A CN116104287A CN202211464725.7A CN202211464725A CN116104287A CN 116104287 A CN116104287 A CN 116104287A CN 202211464725 A CN202211464725 A CN 202211464725A CN 116104287 A CN116104287 A CN 116104287A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 112
- 239000010959 steel Substances 0.000 claims abstract description 112
- 238000005192 partition Methods 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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Abstract
The application relates to a scaffold system without a supporting point at the bottom of a near wall surface of a building and a building method, wherein a drawknot mechanism is arranged between a vertical rod and an embedded part and comprises a first steel wire rope, a second steel wire rope, a tightening assembly and a locking assembly, and the tightening assembly comprises a fixing box; one end of the first steel wire rope is fixed with the fixing box, the other end of the first steel wire rope is fixed with the vertical rod, one end of the second steel wire rope is fixed with the embedded part, the other end of the second steel wire rope is fixed with the fixing box, and the fixed position of the first steel wire rope and the vertical rod is higher than the fixed position of the second steel wire rope and the embedded part; the tightening assembly is used for driving the first steel wire rope and the second steel wire rope to be rolled in a direction approaching to each other or released in a direction separating from each other; the locking component is used for realizing the relative fixation of the first steel wire rope and the second steel wire rope, and the cooperation tightening component is used for realizing the independent release of the second steel wire rope or the simultaneous rolling and release of the first steel wire rope and the second steel wire rope.
Description
Technical Field
The application relates to the technical field of scaffolds, in particular to a scaffold system without supporting points at the bottom of a near wall surface of a building and a building method.
Background
The scaffold is a working platform which is erected to ensure that each construction process is carried out smoothly. The scaffold is divided into an outer scaffold and an inner scaffold according to the set-up positions; the steel pipe scaffold can be divided into a wood scaffold, a bamboo scaffold and a steel pipe scaffold according to different materials; the scaffold is divided into a vertical rod type scaffold, a bridge type scaffold, a door type scaffold, a suspension type scaffold, a hanging type scaffold, a picking type scaffold and a climbing type scaffold according to the structural form.
The resident self-building house is arranged at the bottom layer of the original building, namely, one layer is a protruding building, a scaffold is needed to be erected for reforming the original building, the scaffold is used for wrapping the protruding building, the top of the protruding building is not subjected to force borrowing, one side of the protruding building is an external landing scaffold, the upper side of the protruding building is a suspended scaffold, one end of a cross rod of the suspended scaffold is fixed with an embedded part on the original building, and the other end of the cross rod of the suspended scaffold is fixed with a vertical rod of the external landing scaffold.
The embedded parts of the original building are usually formed by driving four expansion bolts into the original masonry wall, and steel plates are fixed on the expansion bolts.
The cross bar bearing of the suspended scaffold is characterized in that the joint of the cross bar bearing of the suspended scaffold and the embedded part on the original building and the joint of the expansion bolt and the masonry wall are provided with diagonal rods, one end of each diagonal rod is fixed with the vertical bar of the foot falling hand frame, the other end of each diagonal rod is fixed with the embedded part on the original building, but when the diagonal rod is in a state of being obliquely upwards arranged along the direction far away from the original building, the diagonal rod is a hard rod, the vertical bar can be used for applying the force transmitted by tilting the diagonal rod to the embedded part of the original building, and the risk of increasing the stress of the embedded part of the original building and lifting the embedded part from the masonry wall exists.
Disclosure of Invention
In order to reduce the risk that embedded parts are separated from masonry walls, the application provides a scaffold system with no supporting points at the bottom of a near-wall surface of a building and a building method.
In a first aspect, the present application provides a scaffold system without a supporting point at the bottom of a near wall surface of a building, which adopts the following technical scheme:
the scaffold system comprises a floor scaffold at one side of a building and an embedded part on the building, wherein a vertical rod of the floor scaffold is in butt joint with the ground, a suspended scaffold is arranged between the floor scaffold and the building and comprises a cross rod, one end of the cross rod is fixedly connected with the embedded part, the other end of the cross rod is fixedly connected with the vertical rod, a drawknot mechanism is arranged between the vertical rod and the embedded part and comprises a first steel wire rope, a second steel wire rope, a tightening assembly and a locking assembly, and the tightening assembly comprises a fixing box; one end of the first steel wire rope is fixed with the fixing box, the other end of the first steel wire rope is fixed with the junction of the vertical rod and the cross rod, one end of the second steel wire rope is fixed with the embedded part, the other end of the second steel wire rope is fixed with the fixing box, and the fixed position of the first steel wire rope and the vertical rod is higher than the fixed position of the second steel wire rope and the embedded part; the tightening assembly is used for driving the first steel wire rope and the second steel wire rope to be rolled in a direction approaching to each other or released in a direction separating from each other; the locking component is positioned on the fixing box and is used for realizing the relative fixation of the first steel wire rope and the second steel wire rope, and the locking component is matched with the tightening component to realize the independent release of the second steel wire rope or the simultaneous winding and release of the first steel wire rope and the second steel wire rope.
Through adopting above-mentioned technical scheme, when bearing on the horizontal pole, horizontal pole self bearing, horizontal pole pass through built-in fitting and montant and transmit the power of vertical direction, when the montant is to being close to building direction slope, tie mechanism can become the relaxation state from the tight state to can not transmit other external forces for the built-in fitting through tie mechanism, but when the built-in fitting bears the power of vertical direction with the horizontal pole junction, tie mechanism of the tight state can provide the pulling force to the built-in fitting, thereby improve the compressive capacity of built-in fitting, reduce the risk that the built-in fitting breaks away from masonry wall. The tightening assembly tightens the first steel wire rope and the second steel wire rope to be in a tightening state, so that the drawknot mechanism can adapt to fixed points with different lengths, and the application range is enlarged. The locking component enables the second steel wire rope to be released independently, so that when the drawknot mechanism is installed, the second steel wire rope is fixed with the embedded part, then the second steel wire rope is pulled to be released, a worker directly installs the first steel wire rope and tightens the first steel wire rope and the second steel wire rope at a place close to the vertical rod, the load bearing of the worker to the embedded part is reduced when the worker installs the drawknot mechanism, and the worker at the embedded part is not good to climb, so that convenience in construction is provided.
Optionally, tighten up the subassembly still including first rotary drum, second rotary drum, first gear, second gear, third gear and bull stick, first gear ring cover is fixed on first rotary drum outer wall, second gear ring cover is fixed on second rotary drum outer wall, first rotary drum and second rotary drum parallel arrangement just all lie in fixed box and rotate with fixed box and be connected, bull stick one end runs through fixed box after with third gear fixed connection, the third gear is located between first gear and the second gear and meshes with both, first wire rope one end runs through fixed box after with first rotary drum outer wall fixed connection, second wire rope one end runs through fixed box back shift second rotary drum outer wall fixed connection.
Through adopting above-mentioned technical scheme, first rotary drum is as first wire rope's storage component, and second rotary drum is as second wire rope's storage component, thereby realizes the simultaneous rotation of first rotary drum and second rotary drum through the intermeshing of first, second and third gear, accomplishes first wire rope and second wire rope's simultaneous rolling or release.
Optionally, a swinging rod is fixed at one end of the rotating rod far away from the third gear, and the swinging rod is perpendicular to the rotating rod; the locking assembly comprises a positioning rod, a limiting rod and a limiting spring, a first through hole and a second through hole are formed in the swinging rod, the first through hole is formed in the length direction of the swinging rod, the second through hole is formed in the direction away from or close to the fixed box, and the first through hole is communicated with the second through hole; the limiting spring is sleeved on the limiting rod, one end of the limiting spring is fixedly connected with the inner wall of the first through hole, the other end of the limiting spring is fixedly connected with the outer wall of the limiting rod, the limiting rod slides in the direction approaching or separating from the second through hole, the positioning rod is positioned in the second through hole, a first clamping groove is formed in the positioning rod, a plurality of positioning holes are formed in the outer wall of the fixing box, and adjacent positioning holes are distributed at intervals in a circumferential shape by taking the rotating rod as a circle center; the third gear is meshed with the first gear and the second gear simultaneously, one end of the positioning rod is inserted into the positioning hole, and meanwhile, the end part of the limiting rod is inserted into the first clamping groove.
Through adopting above-mentioned technical scheme, the existence of swinging arms is convenient for the better rotation bull stick of workman, and the existence of swinging arms provides the setting position for locking assembly's setting simultaneously. After the first steel wire rope and the second steel wire rope are tightened through the swinging rod, the positioning is integrated and embedded in the corresponding positioning hole, the positioning rod is limited through the limiting spring and the limiting rod, the positioning rod is prevented from sliding out of the positioning hole, limiting fixation of the rotating rod is achieved, and the first steel wire rope and the second steel wire rope are guaranteed to be in a tensioning state. The existence of locating lever not only plays the positioning effect, and locating lever cooperation swinging arms and bull stick have formed a zig-zag crank, and the workman of being convenient for is laborsaving more and rotate the bull stick fast, has promoted the efficiency of construction.
Optionally, along first section of thick bamboo length direction, the thickness difference of first gear and second gear is greater than the thickness of third gear, and when the third gear only engaged with first gear, locating lever tip and fixed box outer wall butt.
Through adopting above-mentioned technical scheme, draw the bull stick to keeping away from fixed box direction, thereby make the third gear only with first gear engagement, then the workman holds the swinging arms, press the locating lever with the thumb and make locating lever tip and fixed box outer wall butt, thereby form the state of a handle, be convenient for the workman directly pull fixed box, thereby take out second wire rope from the second rotary drum, easy operation is convenient, the security of workman's overhead operation is convenient for be promoted in the one hand operation, the montant can be held to the other hand, be used for improving the safety assurance. The locating rod not only has the effect of rotating and locating the rotating rod, but also has the effect of locating the position of the third gear.
Optionally, a partition plate is arranged in the fixed box, the first steel wire rope and the second steel wire rope are located on the same side of the partition plate, the first gear, the second gear and the third gear are located on the other side of the partition plate, the end part of the rotating rod penetrates through the partition plate, a reset spring is sleeved on the rotating rod in a ring mode, one end of the reset spring is fixedly connected with the outer wall of the rotating rod, and one end of the reset spring is in butt joint with the side wall, deviating from the first gear, of the partition plate; the reset spring is used for exerting force close to the partition plate on the third gear, and the first gear and the second gear are both arranged close to the partition plate.
Through adopting above-mentioned technical scheme, the existence of partition panel has avoided first wire rope and first gear to produce winding state, has also avoided second gear and second wire rope to produce winding state, the existence of partition panel cooperates the fixed box lateral wall that the bull stick runs through simultaneously, has further realized the location to the bull stick position, has reduced the bull stick and can produce the possibility of rocking, and partition panel cooperation reset spring makes the bull stick under the state that does not receive external force to pull simultaneously, makes the third gear be located between first gear and the second gear all the time, guarantees the stable meshing state of three.
Optionally, a second clamping groove is formed on the positioning rod, the second clamping groove is located on one side, close to the fixed box, of the first clamping groove, when the third gear is meshed with the first gear and the second gear simultaneously, the swinging rod is abutted to the outer wall of the fixed box, one end of the positioning rod is abutted to the outer wall of the fixed box, the other end of the positioning rod is located outside the second through hole, and the end part of the limiting rod is inserted into the second clamping groove; the second clamping groove is formed in a circle along the circumferential outer wall of the positioning rod.
Through adopting above-mentioned technical scheme, the seting up of second draw-in groove makes the locating lever can not break away from the swinging arms when relative swinging arms rotation, has further perfected the convenience when the zigzag crank uses, has also guaranteed simultaneously when the locating lever drives the swinging arms rotation, and the locating lever can not misinsert in the locating hole, has guaranteed the smoothness degree when the bull stick rotates.
Optionally, an extension tube is welded on the embedded part, the extension tube is horizontally arranged, a cross fastener is arranged between the extension tube and the cross rod, and the cross fastener is used for locking the extension tube and the cross rod; a plurality of connecting holes are formed in the cross fastener, and the end part of the second steel wire rope is detachably connected with the connecting holes.
Through adopting above-mentioned technical scheme, there is the barrier on the building outer wall like outer hanging machine of air conditioner or windowsill outer cornice etc. through the existence of extension pipe for the fixed of horizontal pole and built-in fitting provides convenience.
Optionally, an inclined strut is arranged between the cross rod and the vertical rod, the end part of the inclined strut is hinged with a C-shaped plate, the hinged shaft is horizontally arranged, the cross section of the end part of the C-shaped plate is smaller as the end part of the C-shaped plate is closer to the cross section of the end part of the C-shaped plate, and the end part of the C-shaped plate is inserted into the connecting hole; the vertical rod adopts a disc-buckle type scaffold, and a C-shaped plate at the position, close to the vertical rod, of the inclined strut is fixedly inserted into a connecting disc of the disc-buckle type scaffold; the diagonal brace is obliquely downwards arranged along the direction away from the embedded part.
Through adopting above-mentioned technical scheme, the mode that diagonal brace slope set up, when the buried plate bore vertical pressure, will be partly atress through the diagonal brace and transmit for the montant to reduce the risk that expansion bolts drops from the wall body, and diagonal brace also can play the supporting role to the built-in fitting, and the weight of diagonal brace self also can not press on the built-in fitting simultaneously.
Optionally, a Z-shaped rod is arranged on the rotating shaft of the cross fastener, the Z-shaped rod is rotationally connected with the cross fastener, the rotating shaft is perpendicular to the rotating shaft of the cross fastener, and after the cross fastener simultaneously fixes the extension tube and the cross bar, one end of the Z-shaped rod is abutted against the end face of the extension tube, and the other end of the Z-shaped rod is abutted against the end face of the cross bar; and a half groove is formed in the C-shaped plate, and when the Z-shaped rod is rotated to the position that the end part of the Z-shaped rod is abutted against the end part of the cross rod, the end part of the Z-shaped rod is simultaneously rotated into the half groove, and one end of the C-shaped plate, which is close to the cross fastener, penetrates through the connecting hole.
By adopting the technical scheme, when the cross rod is subjected to external force in the direction close to the extension tube, the connecting effect between the cross rod and the extension tube is ensured by the cross fastener, and meanwhile, the force transmission effect of the cross rod to the extension tube is enhanced by the Z-shaped rod; meanwhile, the Z-shaped rod also serves as a member for horizontally limiting the C-shaped plate, so that one end of the C-shaped plate cannot be separated from the cross fastener after penetrating through the connecting hole.
In a second aspect, the present application provides a method for setting up a scaffold system without a supporting point at the bottom of a near wall surface of a building, which adopts the following technical scheme:
the method for erecting the scaffold system without the supporting points at the bottom of the near wall surface of the building comprises the following steps:
s1, erecting a ground leg hand rest, and fixing an embedded part on an original building outer wall;
s2, when the suspended scaffold is erected, one end of the cross rod is fixed with the embedded part through the cross fastener, and the other end of the cross rod is fixed with the vertical rod;
s3, fixing a tie mechanism and an inclined strut between the cross bar and the vertical bar along with the increase of the erection height of the floor scaffold and the suspended scaffold;
s4, fixing one end of a second steel wire rope with the cross fastener, releasing the second steel wire rope to a proper length through the cooperation of the tightening assembly and the locking assembly, fixing the first steel wire rope with the vertical rod, tightening all the first steel wire rope and the second steel wire rope through the tightening assembly, and finally fixing the first steel wire rope and the second steel wire rope relatively through the locking assembly to finish the fixation of the drawknot mechanism;
s5, inserting and connecting one end of the diagonal brace with the cross fastener, fixing the diagonal brace through rotating the Z-shaped rod, inserting and fixing the other end of the diagonal brace with the vertical rod, and fixing the diagonal brace.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the tightening assembly is used for driving the first steel wire rope and the second steel wire rope to be rolled in a direction approaching to each other or released in a direction separating from each other; the locking component is used for realizing the relative fixation of the first steel wire rope and the second steel wire rope, and simultaneously is matched with the tightening component for realizing the independent release of the second steel wire rope or the simultaneous winding and release of the first steel wire rope and the second steel wire rope, and the independent release of the second steel wire rope is used for facilitating the worker to quickly adjust the overall length of the drawknot mechanism after fixing the end part of the second steel wire rope with the embedded part, and then simultaneously winding the first steel wire rope and the second steel wire rope after fixing the end part of the first steel wire rope with the vertical rod, thereby realizing the effect of quickly tensioning the drawknot mechanism;
2. the drawknot mechanism can be regarded as a flexible member as a whole due to the existence of the first steel wire rope and the second steel wire rope, can provide tension force for the embedded part, but can not apply pressure to the embedded part, once the drawknot mechanism is separated from a tensioning state, the transmission state of force is lost, the diagonal bracing rod is a rigid member, can effectively provide supporting force for the embedded part, and the arrangement of an inclined mode can not generate other pressure on the embedded part;
3. the swinging rod and the locking component are arranged, and the swinging rod is matched with the rotating rod to form a crank-like structure, so that the rotating rod can be conveniently and rapidly rotated, and when the third gear is only meshed with the first gear, the swinging rod and the locking component are matched with the rotating rod to form a handle-like structure, so that the fixing box can be conveniently and directly pulled to rapidly release the second steel wire rope;
4. tension state's drawknot mechanism can provide pulling force to the built-in fitting to improve the compressive capacity of built-in fitting, reduce the risk that the built-in fitting breaks away from masonry wall: the tensioning and tie-pulling mechanism can generate oblique pulling force, and is divided into horizontal force and vertical force to the embedded part, the horizontal force is counteracted by the cross rod support, and meanwhile, the lower inclined stay rod can provide counteracted force; and the force in the vertical direction resists the downward pressure generated by the frame body on the embedded part, thereby achieving the effect of improving the compressive capacity of the embedded part.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic view showing a part of the structure of the cross fastener;
fig. 3 is a sectional view showing the internal structure of the fixing case;
fig. 4 is a sectional view showing a part of the structure of the lock assembly.
Reference numerals illustrate: 1. a drawknot mechanism; 11. a tightening assembly; 111. a fixed box; 112. a first drum; 113. a second drum; 114. a first gear; 115. a second gear; 116. a third gear; 117. a rotating rod; 12. a locking assembly; 121. a positioning rod; 122. a limit rod; 123. a limit spring; 13. a first wire rope; 14. a second wire rope; 2. a vertical rod; 21. a cross bar; 22. an embedded part; 3. a swinging rod; 31. a first through hole; 32. a second through hole; 33. a loop; 4. positioning holes; 5. a first clamping groove; 51. a second clamping groove; 6. a partition panel; 61. a return spring; 7. an extension tube; 8. cross fasteners; 81. a connection hole; 82. a Z-shaped rod; 9. a diagonal brace; 91. a C-shaped plate; 92. half groove.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a scaffold system without supporting points at the bottom of a near wall surface of a building.
Referring to fig. 1, a ground leg hand frame is arranged on one side of a building, an embedded part 22 is arranged on the outer wall of the building, a suspended scaffold is arranged above a protruding building at the bottom layer of the building, a vertical rod 2 of the ground scaffold is abutted to the ground, one end of a cross rod 21 of the suspended scaffold is fixedly connected with the embedded part 22, the other end of the cross rod is fixedly connected with the vertical rod 2, an inclined strut 9 and a drawknot mechanism 1 are further arranged between the vertical rod 2 and the cross rod 21, one end of the inclined strut 9 is fixedly connected with the embedded part 22, the other end of the inclined strut 9 is fixedly connected with the vertical rod 2, and the inclined strut 9 is obliquely downwards arranged along the direction away from the embedded part 22; one end of the drawknot mechanism 1 is fixedly connected with the embedded part 22, the other end of the drawknot mechanism 1 is fixedly connected with the vertical rod 2, the drawknot mechanism 1 is in a tensioning state, the drawknot mechanism 1 is arranged obliquely upwards along the direction away from the embedded part 22, when the distance between the vertical rod 2 and the embedded part 22 is close to each other, the drawknot mechanism 1 is changed into a loosening state from the tensioning state, other pressure can not be applied and transmitted to the embedded part 22, the drawknot mechanism 1 and the inclined stay 9 are arranged to share the stress effect on the embedded part 22, and the risk that the embedded part 22 is separated from the wall is reduced.
Referring to fig. 1 and 2, in this embodiment, the embedded part 22 is driven into the wall body by four expansion bolts, the end portion is welded with a steel plate, an extension tube 7 is fixed on the steel plate, the steel plate is tightly attached to the outer wall, and the extension tube 7 is horizontally arranged. A cross fastener 8 is arranged between the end part of the cross rod 21 and the extension tube 7, and the cross fastener 8 locks the extension tube 7 and the cross rod 21 simultaneously.
Referring to fig. 2, the cross fastener 8 is provided with connection holes 81, for convenience of description, the cross fastener 8 is in a use state, the extension tube 7 and the cross bar 21 are locked at the same time, the connection holes 81 are horizontally provided along the length direction of the cross bar 21, and the connection holes 81 are provided at intervals. The cross fastener 8 is provided with a Z-shaped rod 82, the middle part of the Z-shaped rod 82 is rotationally connected with the rotating shaft of the cross fastener 8, the rotating shaft is horizontally arranged along the length direction of the cross rod 21, when the cross fastener 8 locks the extension tube 7 and the cross rod 21 simultaneously, the Z-shaped rod 82 is rotated, at the moment, one end of the Z-shaped rod 82 is abutted with the end part of the extension tube 7, and the other end of the Z-shaped rod 82 is abutted with the end part of the cross rod 21.
Referring to fig. 1 and 2, a disc buckle scaffold is adopted between adjacent vertical rods 2, namely a connecting disc exists between the adjacent vertical rods 2, the end parts of inclined stay rods 9 are all fixed with C-shaped plates 91, when the inclined stay rods 9 are fixed, one end of each inclined stay rod 9, which is close to the corresponding position of each vertical rod 2, is inserted and embedded on the connecting disc, the end part of each cross rod 21, which is close to each vertical rod 2, is inserted and fixed on the connecting disc in the same connecting mode of the inclined stay rod 9 and the corresponding vertical rod 2, and one end of each inclined stay rod 9, which is close to the corresponding embedded part 22, is inserted and embedded in a connecting hole 81; the cross-sectional area of the end portion of the C-shaped plate 91 is smaller as the C-shaped plate 91 approaches the end portion of the C-shaped plate, so that the C-shaped plate 91 is inserted deeper when being inserted into the connecting hole 81 or the connecting disc, the inserted state is tighter, the C-shaped plate 91 is provided with a half groove 92, after one end of the C-shaped plate 91 penetrates through the connecting hole 81, the notch of the half groove 92 is opposite to the rotating direction of the end portion of the Z-shaped rod 82, namely, after the Z-shaped rod 82 rotates, one end of the Z-shaped rod 82 rotates into the half groove 92, and therefore the C-shaped plate 91 cannot be separated from the cross fastener 8 along the horizontal direction.
Referring to fig. 1 and 3, the drawknot mechanism 1 includes a tightening assembly 11, a locking assembly 12, a first wire rope 13, and a second wire rope 14; the tightening assembly 11 comprises a fixed box 111, a first rotary drum 112, a second rotary drum 113, a first gear 114, a second gear 115, a rotary rod 117 and a third gear 116, wherein the length setting directions of the first rotary drum 112, the second rotary drum 113 and the rotary rod 117 are the same, the first rotary drum 112 and the second rotary drum 113 are both positioned in the fixed box 111 and are rotationally connected with the fixed box 111, the first gear 114 is fixed on the outer wall of the first rotary drum 112 in a ring mode, the second gear 115 is fixed on the outer wall of the second rotary drum 113 in a ring mode, the third gear 116 is positioned between the first gear 114 and the second gear 115, and the third gear 116 is meshed with the first gear 114 and the second gear 115 simultaneously; the fixed box 111 is internally fixed with the partition plate 6, and the partition plate 6 is all run through to first rotary drum 112 and second rotary drum 113, and partition plate 6 divide into two regions with fixed box 111 inner space, and first gear 114, second gear 115 and third gear 116 all are located same region, and the partition plate 6 is run through after the fixed box 111 is run through to bull stick 117 one end, and the third gear 116 ring cover is fixed on bull stick 117 outer wall. Along the length direction of the rotating rod 117, the thickness of the first gear 114 minus the thickness of the second gear 115 is larger than the thickness of the third gear 116, and the first gear 114 and the second gear 115 are both closely attached to the partition plate 6.
Referring to fig. 1, in the region of the partition panel 6 facing away from the first gear 114: one end of the first steel wire rope 13 penetrates through the fixed box 111 and is fixedly connected with the outer wall of the first rotary drum 112, one end of the second steel wire rope 14 penetrates through the fixed box 111 and is fixedly connected with the outer wall of the second rotary drum 113, a return spring 61 is arranged between the partition plate 6 and the rotary rod 117, the return spring 61 is sleeved on the outer wall of the rotary rod 117, one end of the return spring 61 is fixedly connected with the outer wall of the rotary rod 117, the other end of the return spring is abutted against the partition plate 6, the rotary rod 117 rotates relative to the fixed box 111 by taking the central line of the rotary rod 117 as a rotating shaft, the rotary rod 117 can be drawn away from the fixed box 111, the rotary rod 117 cannot be drawn away from the fixed box 111 due to the third gear 116, and the existence of the return spring 61 always applies force to the rotary rod 117 in the direction close to the partition plate 6, so that the third gear 116 is stably meshed with the first gear 114 and the second gear 115; when the rotating rod 117 is pulled away from the fixing box 111, the return spring 61 is compressed, the third gear 116 is disengaged from the second gear 115, the third gear 116 is only engaged with the first gear 114, at this time, the second drum 113 rotates to release the second wire rope 14, and when the second wire rope 14 is released to a proper length, the pulling of the rotating rod 117 is released, so that the first wire rope 13 and the second wire rope 14 can be wound simultaneously. The end of the first steel wire rope 13 far away from the fixing box 111 is fixedly connected with the vertical rod 2, and the end of the second steel wire rope 14 far away from the fixing box 111 is hooked and fixed with the cross fastener 8.
Referring to fig. 3 and 4, the end of the rotating rod 117 far from the fixing box 111 is fixed with a swinging rod 3, the swinging rod 3 is perpendicular to the rotating rod 117, a first through hole 31 and a second through hole 32 are formed in the swinging rod 3, the first through hole 31 is formed in the length direction of the swinging rod 3, the second through hole 32 is formed in the length direction of the rotating rod 117, and the end of the first through hole 31 is opened to the inside of the second through hole 32. The swinging rod 3 is provided with the locking assembly 12, the locking assembly 12 comprises a positioning rod 121, a limiting rod 122 and a limiting spring 123, one end of the limiting rod 122 is inserted into the first through hole 31, the limiting spring 123 is sleeved on the outer wall of the limiting rod 122 in a ring mode, one end of the limiting spring 123 is fixedly connected with the limiting rod 122, the other end of the limiting spring is fixedly connected with the inner wall of the first through hole 31, a ring 33 is fixed at the other end of the limiting rod 122, and a thumb of a worker can be inserted into the ring 33 to conveniently pull the limiting rod 122.
Referring to fig. 3 and 4, the positioning rod 121 is inserted into the second through hole 32, the positioning rod 121 is provided with a first clamping groove 5 and a second clamping groove 51, the first clamping groove 5 and the second clamping groove 51 are all formed along the outer wall of the positioning rod 121 for a circle, the second clamping groove 51 is closer to the outer wall of the fixed box 111 than the first clamping groove 5, when the end part of the positioning rod 121 is abutted to the outer wall of the fixed box 111, the end part of the limiting rod 122 is inserted into the second clamping groove 51, and the rotating rod 117 can be driven to rotate by rotating the positioning rod 121; the outer wall of the fixing box 111 is provided with a plurality of locating holes 4, the locating holes 4 are formed in a plurality, all locating holes 4 are round, the circle center is that the rotating rod 117 penetrates through the fixing box 111, the adjacent locating holes 4 are formed at intervals, when the rotating rod 117 needs to be fixed, the annular ring 33 is pulled, the limiting spring 123 is compressed, the end part of the limiting rod 122 is separated from the second clamping groove 51, then the limiting rod is clamped and embedded in the first clamping groove 5, and at the moment, the end part of the locating rod 121 is inserted and embedded in the corresponding locating hole 4.
Referring to fig. 1, in the drawing, a diagonal brace 9 and a drawknot mechanism 1 are disposed between two cross bars 21 in the vertical direction, and in the drawing, only one diagonal brace 9 and one drawknot mechanism 1 are drawn between two cross bars 21 for the sake of convenience in viewing each component.
The embodiment of the application also discloses a method for setting up the scaffold system without supporting points at the bottom of the near wall surface of the building.
The method comprises the following steps:
s1, erecting a ground leg hand rest, and fixing an embedded part 22 on the outer wall of the original building;
s2, when the suspended scaffold is erected, one end of the cross bar 21 is fixed with the embedded part 22 through the cross fastener 8, and the other end of the cross bar is fixed with the vertical rod 2, wherein the fixing mode adopts a fixing mode of a disc buckle type scaffold;
s3, along with the increase of the erection heights of the floor scaffold and the suspended scaffold, fixing a drawknot mechanism 1 and an inclined stay bar 9 between the cross bar 21 and the vertical bar 2;
s4, one end of a second steel wire rope 14 passes through a connecting hole 81 to be fixed with the cross fastener 8, the second steel wire rope 14 is released to a proper length through the matching of the tightening assembly 11 and the locking assembly 12, then the first steel wire rope 13 and the second steel wire rope 14 are fixed with the vertical rod 2, the tightening assembly 11 tightens the first steel wire rope 13 and the second steel wire rope 14 completely, namely rotates the rotating rod 117 to tighten the first steel wire rope 13 and the second steel wire rope 14, finally the positioning rod 121 is inserted into the corresponding positioning hole 4, and the first steel wire rope 13 and the second steel wire rope 14 are relatively fixed to finish the fixation of the drawknot mechanism 1;
s5, inserting and connecting one end of the diagonal brace 9 with the cross fastener 8, rotating the Z-shaped rod 82 to rotate one end of the Z-shaped rod 82 into the half groove 92 to finish fixing, inserting and fixing the other end of the diagonal brace 9 with the vertical rod 2, and finishing fixing of the diagonal brace 9.
The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The utility model provides a scaffold frame system of nearly wall bottom of building does not have strong point, includes scaffold frame and built-in fitting (22) on the building that falls to the ground on building one side, and montant (2) and ground butt of scaffold frame itself falls to the ground are provided with unsettled scaffold frame between scaffold frame and the building, and unsettled scaffold frame includes horizontal pole (21), horizontal pole (21) one end and built-in fitting (22) fixed connection, the other end and montant (2) fixed connection, its characterized in that: a drawknot mechanism (1) is arranged between the vertical rod (2) and the embedded part (22), the drawknot mechanism (1) comprises a first steel wire rope (13), a second steel wire rope (14), a tightening assembly (11) and a locking assembly (12), and the tightening assembly (11) comprises a fixing box (111); one end of the first steel wire rope (13) is fixed with the fixing box (111), the other end of the first steel wire rope is fixed with the junction of the vertical rod (2) and the cross rod (21), one end of the second steel wire rope (14) is fixed with the embedded part (22), the other end of the second steel wire rope is fixed with the fixing box (111), and the fixing position of the first steel wire rope (13) and the vertical rod (2) is higher than the fixing position of the second steel wire rope (14) and the embedded part (22); the tightening assembly (11) is used for driving the first steel wire rope (13) and the second steel wire rope (14) to be rolled in the direction approaching to each other or released in the direction separating from each other; the locking component (12) is positioned on the fixing box (111), the locking component (12) is used for realizing the relative fixing of the first steel wire rope (13) and the second steel wire rope (14), and the matching tightening component (11) is used for realizing the independent release of the second steel wire rope (14) or the simultaneous winding and release of the first steel wire rope (13) and the second steel wire rope (14).
2. A scaffold system without support points at the bottom of a near wall of a building according to claim 1, wherein: the tightening assembly (11) further comprises a first rotary drum (112), a second rotary drum (113), a first gear (114), a second gear (115), a third gear (116) and a rotary rod (117), wherein the first gear (114) is fixed on the outer wall of the first rotary drum (112) in a loop, the second gear (115) is fixed on the outer wall of the second rotary drum (113) in a loop, the first rotary drum (112) and the second rotary drum (113) are arranged in parallel and are both located in the fixed box (111) and are rotationally connected with the fixed box (111), one end of the rotary rod (117) penetrates through the fixed box (111) and then is fixedly connected with the third gear (116), the third gear (116) is located between the first gear (114) and the second gear (115) and is meshed with the third gear, one end of the first steel wire rope (13) penetrates through the fixed box (111) and then is fixedly connected with the outer wall of the first rotary drum (112), and one end of the second steel wire rope (14) penetrates through the fixed box (111) and moves backwards through the outer wall of the second rotary drum (113).
3. A scaffold system without support points at the bottom of a near wall of a building according to claim 2, wherein: one end of the rotating rod (117) far away from the third gear (116) is fixedly provided with a swinging rod (3), and the swinging rod (3) is perpendicular to the rotating rod (117); the locking assembly (12) comprises a positioning rod (121), a limiting rod (122) and a limiting spring (123), a first through hole (31) and a second through hole (32) are formed in the swinging rod (3), the first through hole (31) is formed in the length direction of the swinging rod (3), the second through hole (32) is formed in the direction away from or close to the fixed box (111), and the first through hole (31) is communicated with the second through hole (32); the limiting spring (123) is sleeved on the limiting rod (122), one end of the limiting spring (123) is fixedly connected with the inner wall of the first through hole (31), the other end of the limiting spring is fixedly connected with the outer wall of the limiting rod (122), the limiting rod (122) slides towards the direction close to or far away from the second through hole (32), the positioning rod (121) is positioned in the second through hole (32), the positioning rod (121) is provided with a first clamping groove (5), the outer wall of the fixing box (111) is provided with a plurality of positioning holes (4), and the adjacent positioning holes (4) are circumferentially distributed at intervals by taking the rotating rod (117) as the center of a circle; the third gear (116) is meshed with the first gear (114) and the second gear (115) simultaneously, one end of the positioning rod (121) is inserted into the positioning hole (4), and meanwhile, the end of the limiting rod (122) is inserted into the first clamping groove (5).
4. A scaffold system according to claim 3, wherein the scaffold system is free of support points at the bottom of the near wall of the building, and wherein: along the length direction of the first rotary drum (112), the difference between the thickness of the first gear (114) and the thickness of the second gear (115) is larger than the thickness of the third gear (116), and when the third gear (116) is only meshed with the first gear (114), the end part of the positioning rod (121) is abutted with the outer wall of the fixed box (111).
5. The scaffold system of claim 4, wherein the scaffold system has no support points at the bottom of the near wall surface of the building, and is characterized in that: a partition plate (6) is arranged in the fixed box (111), a first steel wire rope (13) and a second steel wire rope (14) are positioned on the same side of the partition plate (6), a first gear (114), a second gear (115) and a third gear (116) are positioned on the other side of the partition plate (6), the end part of a rotating rod (117) penetrates through the partition plate (6), a reset spring (61) is sleeved on the rotating rod (117) in a ring manner, one end of the reset spring (61) is fixedly connected with the outer wall of the rotating rod (117), and the other end of the reset spring is in butt joint with the side wall of the partition plate (6) deviating from the first gear (114); the return spring (61) is used for applying force to the third gear (116) close to the partition panel (6), and the first gear (114) and the second gear (115) are arranged close to the partition panel (6).
6. The scaffold system of claim 4, wherein the scaffold system has no support points at the bottom of the near wall surface of the building, and is characterized in that: the positioning rod (121) is provided with a second clamping groove (51), the second clamping groove (51) is positioned on one side, close to the fixed box (111), of the first clamping groove (5), when the third gear (116) is meshed with the first gear (114) and the second gear (115) simultaneously, the swinging rod (3) is abutted with the outer wall of the fixed box (111), one end of the positioning rod (121) is abutted with the outer wall of the fixed box (111), the other end of the positioning rod is positioned outside the second through hole (32), and the end part of the limiting rod (122) is inserted into the second clamping groove (51); the second clamping groove (51) is formed in a circle along the circumferential outer wall of the positioning rod (121).
7. A scaffold system without support points at the bottom of a near wall of a building according to claim 1, wherein: an extension pipe (7) is welded on the embedded part (22), the extension pipe (7) is horizontally arranged, a cross fastener (8) is arranged between the extension pipe (7) and the cross rod (21), and the cross fastener (8) is used for locking the extension pipe (7) and the cross rod (21); a plurality of connecting holes (81) are formed in the cross fastener (8), and the end part of the second steel wire rope (14) is detachably connected with the connecting holes (81).
8. The scaffold system of claim 7, wherein the scaffold system has no support points at the bottom of the near wall surface of the building, and is characterized in that: an inclined stay bar (9) is arranged between the cross bar (21) and the vertical bar (2), the end part of the inclined stay bar (9) is hinged with a C-shaped plate (91), the hinge shaft is horizontally arranged, the cross section area of the end part of the C-shaped plate (91) is smaller as the end part of the C-shaped plate is closer to the hinge shaft, and the end part of the C-shaped plate (91) is inserted into the connecting hole (81); the vertical rod (2) adopts a disc-buckle type scaffold, and a C-shaped plate (91) at the position, close to the vertical rod (2), of the diagonal brace (9) is inserted and fixed with a connecting disc of the disc-buckle type scaffold; the diagonal brace (9) is arranged obliquely downwards along the direction away from the embedded part (22).
9. The scaffold system of claim 8, wherein the scaffold system has no support points at the bottom of the near wall surface of the building, and is characterized in that: a Z-shaped rod (82) is arranged on the rotating shaft of the cross fastener (8), the Z-shaped rod (82) is rotationally connected with the cross fastener (8), the rotating shaft is perpendicular to the rotating shaft of the cross fastener (8), and after the cross fastener (8) simultaneously fixes the extension tube (7) and the cross rod (21), one end of the Z-shaped rod (82) is abutted with the end face of the extension tube (7), and the other end is abutted with the end face of the cross rod (21); a half groove (92) is formed in the C-shaped plate (91), when the Z-shaped rod (82) is rotated to the point that the end of the Z-shaped rod (82) is abutted to the end of the cross rod (21), the end of the Z-shaped rod (82) is simultaneously rotated into the half groove (92), and at the moment, one end of the C-shaped plate (91) close to the cross fastener (8) penetrates through the connecting hole (81).
10. A method of setting up a scaffold system without support points at the bottom of a near wall of a building according to any one of claims 7 to 9, wherein: the method comprises the following steps:
s1, erecting a ground leg hand rest, and fixing an embedded part (22) on the outer wall of an original building;
s2, when the suspended scaffold is erected, one end of the cross rod (21) and the embedded part (22) are fixed through the cross fastener (8), and the other end of the cross rod is fixed with the vertical rod (2);
s3, along with the increase of the erection heights of the floor scaffold and the suspended scaffold, a drawknot mechanism (1) and an inclined strut (9) are fixed between the cross bar (21) and the vertical bar (2);
s4, fixing one end of a second steel wire rope (14) with a cross fastener (8), releasing the second steel wire rope (14) to a proper length through the cooperation of a tightening assembly (11) and a locking assembly (12), fixing a first steel wire rope (13) with a vertical rod (2), tightening all the first steel wire rope (13) and the second steel wire rope (14) through the tightening assembly (11), and finally fixing the two relatively through the locking assembly (12) to finish the fixing of the drawknot mechanism (1);
s5, inserting and connecting one end of the diagonal brace (9) with the cross fastener (8), fixing the diagonal brace (9) with the vertical rod (2) by rotating the Z-shaped rod (82), and fixing the diagonal brace (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211464725.7A CN116104287B (en) | 2022-11-22 | 2022-11-22 | Scaffold system without supporting points at bottom of near wall surface of building and erection method |
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| CN202211464725.7A CN116104287B (en) | 2022-11-22 | 2022-11-22 | Scaffold system without supporting points at bottom of near wall surface of building and erection method |
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