CN116181089A - Grid ball node positioning jig frame and installation method thereof - Google Patents
Grid ball node positioning jig frame and installation method thereof Download PDFInfo
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- CN116181089A CN116181089A CN202310233385.5A CN202310233385A CN116181089A CN 116181089 A CN116181089 A CN 116181089A CN 202310233385 A CN202310233385 A CN 202310233385A CN 116181089 A CN116181089 A CN 116181089A
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- 238000009434 installation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 6
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 3
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- 230000006978 adaptation Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The invention provides a grid ball node positioning jig frame and an installation method thereof, wherein the whole positioning jig frame is formed by connecting a plurality of quadrangular pyramid positioning units, each quadrangular pyramid positioning unit comprises four lower string ball supporting devices positioned at four corners of the bottom and one upper string ball supporting device positioned at the center of the upper part, the adjacent lower string ball supporting devices are connected through a straight pull rod, and each lower string ball supporting device is connected with the adjacent upper string ball supporting device through a diagonal pull rod. The positioning of the lower string ball supporting device and the upper string ball supporting device can be freely adjusted according to the three-dimensional position of the actual net rack ball node in the engineering construction process, and the adaptability is high; the device is rapid to install on site, and accurate positioning between devices can be achieved through the level gauge and the laser pen; the device after installation can realize the reliable fixation of the ball joint, and reduce the assembly error; the device after the construction is accomplished can carry out the turnover of secondary, realizes cyclic utilization.
Description
Technical Field
The invention relates to the technical field of net rack assembly, in particular to a net rack ball joint positioning jig frame and an installation method thereof.
Background
The large-scale space welding ball net frame structure consists of a large number of ball nodes and rod pieces, and has the advantages of good structural stability, attractive appearance, simplicity and convenience in installation and the like. In the construction process of the grid structure, the grid structure is often required to be assembled on the ground in a blocking way, then is installed in place in a lifting or jacking mode and the like, and the assembling is used as a key step for forming the grid structure, so that the installation accuracy of the grid structure is obviously affected. Because of the uncertainty of the rod direction and the shrinkage problem of the welding seam during installation, the net rack assembly is mainly positioned by the ball joints, so the accurate positioning of the ball joints in the construction process is a key for ensuring the assembly quality.
Under the conventional condition, the net rack is assembled by firstly assembling the net rack lower chord ball and the lower chord member, and then the upper chord ball and the upper chord member are assembled by positioning the diagonal web members, so that the prior art does not have special supporting equipment to control the precision of the net rack assembling process, and the assembling process is complex and poor in precision. Therefore, in the ground assembling process, how to effectively and accurately assemble the grid ball joints and the rod pieces to form a local stable grid unit becomes a construction difficulty in the field.
In view of the foregoing, there is a need to design a positioning jig for grid ball nodes, which is used to accurately and efficiently complete the splicing and assembly of grid ball nodes and rods, so as to ensure the safety of the grid structure.
Disclosure of Invention
The invention aims to: the rapid positioning and assembly of the grid ball joints on the construction site are realized, the device is required to adapt to different grid structure forms, the installation preparation process of the device is short, and the device after the use is completed can be recycled. Therefore, the grid ball node positioning jig frame and the installation method thereof are provided, and the grid ball node positioning jig frame is used for realizing rapid assembly of grid ball nodes and rod pieces.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a grid ball joint positioning jig frame, which is formed by connecting a plurality of quadrangular pyramid positioning units, wherein each quadrangular pyramid positioning unit comprises four lower string ball supporting devices positioned at four corners of the bottom and an upper string ball supporting device positioned at the center of the upper part, the adjacent lower string ball supporting devices are connected through a straight pull rod, and each lower string ball supporting device is connected with the adjacent upper string ball supporting device through a diagonal pull rod;
each lower string ball supporting device comprises a height adjusting foot positioned at the bottom and a bearing device positioned at the upper part, wherein a positioning device is arranged between the height adjusting foot and the bearing device, and the positioning device is rotatably connected between the height adjusting foot and the bearing device through a rotating disc;
the upper string ball supporting device comprises a bearing device which is fixedly connected with a positioning device;
the positioning device comprises four horizontal arms which are slidably arranged in the U-shaped clamp, each horizontal arm is rotatably connected with the vertical arm, scales are arranged on the surfaces of the horizontal arms and the vertical arms, each vertical arm is provided with an annular clamp which can slide up and down along the vertical arm, the inner side of each annular clamp is provided with a positioning pointer, and the other side of each annular clamp is provided with a level gauge.
Further, the positioning device in the lower chord ball supporting device is rotatably connected between the height adjusting foot and the bearing device through a rotating disc, the rotating disc is a steel disc with a middle protruding round shaft, is fixedly connected with the height adjusting foot and the bearing device through the round shaft, and can drive the positioning device to rotate around the round shaft; u-shaped cards for fixing the horizontal arm are arranged in four directions on the outer side of the lower surface of the rotating disc;
the U-shaped clamp of the positioning device in the upper string ball supporting device is directly fixed at the lower part of the bearing tray;
the horizontal arm can move horizontally in the U-shaped clamp, one side of the horizontal arm is provided with a groove, the horizontal arm is fixed by a fixing screw matched with one side of the U-shaped clamp, an inner end head of the horizontal arm is provided with an anti-tripping device, an outer end head of the horizontal arm is provided with a second connecting shaft and is fixed with a vertical arm, scales are arranged on the surfaces of the two horizontal arm and can rotate around the second connecting shaft, the vertical arm is a steel arm with a hollow groove in the middle, the fixing screw penetrates through the annular clamp and the hollow groove of the vertical arm, the annular clamp can slide vertically and be fixed along the vertical arm, and the second connecting shaft is further used for connecting the straight pull rod.
Further, the bearing device comprises a bearing tray, the bearing tray is a steel square flat plate with four oblique positions provided with strip-shaped grooves, and the positioning block is a wedge-shaped block clamped in the strip-shaped grooves of the bearing tray through L-shaped blocks and can slide along the strip-shaped grooves; the upper part of the L-shaped block is provided with a sawtooth groove which is matched with a positioning card on the bearing tray to fix the positioning block; the rotating block is arranged on the outer side of the strip-shaped groove and is connected with an oblique connecting lug capable of rotating 360 degrees around the rotating block, the rotating block and the oblique connecting lug are positioned on the upper surface of the bearing tray in the lower string ball supporting device, the upper string ball supporting device is positioned on the lower surface of the bearing tray, a connecting shaft is arranged in the oblique connecting lug and is used for connecting the oblique pull rods, and at least one side face of the oblique connecting lug is fixedly provided with a laser pen through a laser pen fixing clamp.
Further, the height adjusting feet comprise supporting feet, a height adjusting sleeve and a fixing sleeve; the bottom of the height adjusting sleeve is connected with the supporting feet, and the upper part of the height adjusting sleeve is connected with the fixing sleeve.
Further, the supporting feet comprise a supporting bottom plate, supporting rings and stiffening ribs; the supporting bottom plate is a steel circular ring, a circular hole with the same hole diameter as the supporting ring is arranged in the middle of the supporting bottom plate, and the supporting bottom plate and the circular hole are fixedly connected through stiffening ribs.
Further, the height adjusting sleeve comprises a sleeve bottom plate, an outer sleeve and an inner sleeve; the sleeve bottom plate is a round steel plate positioned at the upper part of the supporting ring, and the upper part of the sleeve bottom plate is fixedly provided with an outer sleeve and an inner sleeve which are connected through threads, and the outer sleeve and the inner sleeve are both steel cylinders.
Further, the fixed sleeve comprises a concave sleeve, a rotating piece, a horizontal connecting lug, a first connecting shaft and a fixed pin; the concave sleeve is a steel hollow cylinder with an outer side provided with a clamping groove, sealing plates are arranged on the upper portion and the lower portion, four rotary pieces capable of sliding along the circumferential direction are arranged in the clamping groove, the rotary pieces are fixed by fixing pins after being adjusted according to the horizontal positions between two adjacent lower chord ball supporting devices during use, the middle part of the outer side of each rotary piece is provided with a horizontal connecting lug, and a connecting shaft I is arranged in each horizontal connecting lug.
Further, the straight pull rod and the diagonal draw rod both comprise an outer connecting arm and inner connecting arms at two sides of the outer connecting arm, and the outer connecting arm comprises a connecting sleeve and a locking screw; the inner connecting arm comprises a connecting square tube, an end plate and an annular lug; the connecting square tube is a hollow steel tube with a groove at a fixed distance on the outer surface, end plates are arranged at two ends, and annular lugs are arranged on the outer surface of the outer end plate; the connecting sleeve is a hollow type sleeve with a convex groove with a fixed distance arranged on the inner wall, the diameter of the sleeve is slightly larger than that of the connecting square tube, and when the connecting sleeve is used, the convex groove of the connecting sleeve is meshed with the concave groove of the inner connecting arm by screwing a locking screw at the lower part of the connecting sleeve, so that the connecting and fixing of the convex groove and the concave groove of the inner connecting arm are realized.
The invention also provides a method for installing the grid ball node positioning jig, which is realized by the grid ball node positioning jig and comprises the following steps:
1.1, measuring and paying off according to the existing horizontal positioning points of a construction site in advance, placing a node control network of each unit lower chord of the net rack to be assembled on the ground, and rechecking by using equipment such as a total station;
1.2, arranging a lower chord ball supporting device at an axis intersection point of a control network, and adjusting a horizontal arm and a vertical arm of a positioning device to a proper position according to the ball diameter of a fixed ball node and fixing the horizontal arm and the vertical arm;
1.3, adjusting a height adjusting sleeve by using a level to meet the height requirement of the ball node, if the installation height of the ball node is too high, locally erecting a supporting frame, and penetrating a vertical rod of the supporting frame through a supporting leg to realize the height lifting of the supporting device;
1.4, adjusting and fixing the rotating piece of the fixing sleeve to a proper position, connecting the inner connecting arm with the first connecting shaft, and adjusting and fixing the relative distance between the inner connecting arm and the outer connecting arm of the straight pull rod according to the relative distance between the two lower string ball supporting devices, so that the installation of the lower string ball supporting devices is completed;
1.5, adjusting the position of an oblique connecting lug of the bearing device, positioning the upper chord ball supporting device by using a laser pen according to the angle of an actual grid oblique connecting rod, and connecting the positioned upper chord ball supporting device with the positioned lower chord ball supporting device by using an oblique pull rod, so that the installation of the whole grid ball joint positioning jig frame is completed.
Compared with the prior art, the invention has the following beneficial effects:
compared with the prior art, the invention can freely adjust the relative positions of the upper chord ball supporting device and the lower chord ball supporting device according to the three-dimensional positions of the grid ball nodes, and has strong adaptability; the on-site installation is quick, and the accurate positioning can be realized through the position relationship between the level gauge and the laser pen adjusting device during the installation; the stability of the tire frame after installation is good, and the tire frame can be recycled for a plurality of times.
Drawings
FIG. 1 is a schematic diagram of the overall apparatus of the grid ball node positioning jig of the present invention;
FIG. 2 is a schematic view of a lower chord ball positioning device of the grid ball node positioning jig of the invention;
FIG. 3 is an exploded view of the lower chord ball positioning device of the grid ball node positioning jig of the present invention;
FIG. 4 is a schematic view of a chord ball positioning device of the grid ball node positioning jig of the invention;
FIG. 5 is a cross-sectional view of a height adjustment sleeve of the grid ball node positioning jig of the present invention;
FIG. 6 is a cross-sectional view of a retaining sleeve of the grid ball node positioning jig of the present invention;
FIG. 7 is a cross-sectional view of a positioning device for a grid ball node positioning jig of the present invention;
FIG. 8 is a cross-sectional view of a carrier of the grid ball node positioning jig of the present invention;
FIG. 9 is a front view of the attachment means of the grid ball node positioning jig of the present invention;
FIG. 10 is a side view of the attachment means of the grid ball node positioning jig of the present invention;
in the figure: 1 is a supporting leg, 2 is a height adjusting sleeve, 3 is a fixing sleeve, 4 is a positioning device, 5 is a bearing device, 6 is an inner connecting arm, 7 is an outer connecting arm, 8 is a ball joint, and 9 is a connecting rod; 1-1 is a supporting bottom plate, 1-2 is a supporting ring, and 1-3 is a stiffening rib; 2-1 is a sleeve bottom plate, 2-2 is an outer sleeve, and 2-3 is an inner sleeve; 3-1 is a concave sleeve, 3-2 is a rotary piece, 3-3 is a horizontal connecting lug, 3-4 is a connecting shaft I, and 3-5 is a fixed pin; 4-1 is a rotating disk; 4-2 is a U-shaped clamp, 4-3 is a tightening screw, 4-4 is a horizontal arm, 4-5 is an anti-tripping device, 4-6 is a vertical arm, 4-7 is a connecting shaft II, 4-8 is an annular clamp, 4-9 is a fixing screw, 4-10 is a positioning pointer, 4-11 is a level gauge fixing buckle, and 4-12 is a level gauge; 5-1 is a bearing tray, 5-2 is a positioning block, 5-3 is an L-shaped groove, 5-4 is a positioning card, 5-5 is a rotating block, 5-6 is an oblique connecting lug, 5-7 is a connecting shaft III, 5-8 is a laser pen fixing card, and 5-9 is a laser pen; 6-1 is a connecting square tube, 6-2 is an end plate, and 6-3 is an annular lug; 7-1 is a connecting sleeve, and 7-2 is a locking screw.
Description of the embodiments
The present invention is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the invention and not limiting of its scope, and various equivalent modifications to the invention will fall within the scope of the appended claims to the skilled person after reading the invention.
The grid ball joint positioning jig frame is formed by connecting a plurality of quadrangular pyramid positioning units, as shown in fig. 1-10, each quadrangular pyramid positioning unit comprises four lower string ball supporting devices positioned at four corners of the bottom and one upper string ball supporting device positioned at the center of the upper part, wherein adjacent lower string ball supporting devices are connected through a straight pull rod, and each lower string ball supporting device is connected with the adjacent upper string ball supporting device through a diagonal pull rod; the device specifically comprises supporting feet 1, a height adjusting sleeve 2, a fixing sleeve 3, a positioning device 4, a bearing device 5, an inner connecting arm 6 and an outer connecting arm 7. Wherein supporting legs 1, high adjusting sleeve 2, fixed sleeve 3 constitute the high adjusting legs of bottom, and supporting legs 1 sets up in the bed-jig bottom, has connected gradually high adjusting sleeve 2, fixed sleeve 3, positioner 4 and bears device 5 on it, has constituteed string ball strutting arrangement jointly, and positioner 4 and bears device 5 have constituteed string ball strutting arrangement again simultaneously for realize ball node 8 and connecting rod 9's location and fixed. The adjacent lower string ball supporting devices are connected through straight pull rods, each lower string ball supporting device is connected with the adjacent upper string ball supporting device through diagonal rods, and each straight pull rod and each diagonal rod comprise an inner connecting arm 6 and an outer connecting arm 7.
As shown in FIG. 1-3, the supporting leg 1 comprises a supporting bottom plate 1-1, a supporting ring 1-2 and a stiffening rib 1-3. The supporting bottom plate 1-1 is a circular ring with a circular hole in the middle, the aperture of the circular ring is the same as that of the supporting ring 1-2, and the supporting bottom plate 1-1 and the supporting ring 1-2 are fixedly connected through stiffening ribs 1-3. The supporting feet 1 after the installation are in direct contact with the ground, and the mass of the whole net rack and the positioning jig frame is transferred to the ground to play a supporting role. When the net rack has the modeling of height change such as climbing, the location bed-jig can also be used with the support frame cooperation, and the support frame montant end of erecting in advance can insert in the round hole of supporting legs 1 to realize the local lifting of location bed-jig.
As shown in fig. 1-3 and 5, the height adjusting sleeve 2 includes a sleeve bottom plate 2-1, an outer sleeve 2-2 and an inner sleeve 2-3. The sleeve bottom plate 2-1 is fixed on the upper part of the supporting ring 1-2 and is a round steel plate, the outer sleeve 2-2 is fixed on the upper part of the sleeve bottom plate 2-1, the outer sleeve 2-2 and the inner sleeve 2-3 are steel cylinders, the diameter of the outer sleeve 2-2 is slightly larger than that of the inner sleeve 2-3, and the outer sleeve 2-2 and the inner sleeve 2 are connected through threads, so that the extension and the lengthening of the sleeve in the length direction can be realized. The height adjusting sleeve 2 is arranged mainly for realizing accurate adjustment of the height of the positioning jig frame in consideration of uneven ground of a construction site.
As shown in fig. 1-3 and 6, the fixed sleeve 3 comprises a concave sleeve 3-1, a rotary piece 3-2, a horizontal connecting lug 3-3, a connecting shaft 3-4 and a fixed pin 3-5. The concave sleeve 3-1 is a hollow cylinder made of steel and provided with an upper sealing plate and a lower sealing plate, and a clamping groove is formed in the outer side surface of the cylinder. The rotating sheets 3-2 are arc-shaped steel sheets, are fixed in the clamping grooves and can slide along the circumferential direction of the grooves, and each fixed sleeve 3 is provided with four rotating sheets 3-2, and the number of the rotating sheets is the same as the number of lower chords connected with the lower chord ball positioned by the rotating sheets. When in use, the rotary piece 3-2 can be adjusted according to the horizontal position between two adjacent lower string ball supporting devices and is fixed by the fixing pins 3-5. The middle part of the outer side of the rotary piece 3-2 is provided with a horizontal connecting lug 3-3, and a rotatable connecting shaft I3-4 is fixed in the horizontal connecting lug 3-3. The outer connecting arm 7 can rotate around the first connecting shaft 3-4 in the height direction so as to meet the connection requirement of two adjacent lower string ball supporting devices when the heights of the two adjacent lower string ball supporting devices are different.
As shown in fig. 1-4 and 7, the positioning device 4 comprises a rotary disk 4-1, a u-shaped clamp 4-2, a tightening screw 4-3, a horizontal arm 4-4, an anti-tripping arm 4-5, a vertical arm 4-6, a connecting shaft two 4-7, an annular clamp 4-8, a fixing screw 4-9, a positioning pointer 4-10, a leveling instrument fixing buckle 4-11 and a leveling instrument 4-12. The rotary disk 4-1 is a steel disk, is fixedly connected with the fixed sleeve 3 and the bearing device 5 through a round shaft with a raised middle part, and can horizontally and circularly rotate around the round shaft, so that the whole positioning device 4 is driven to rotate to a proper angle, and mutual interference with the fixed inner connecting arm 6 is prevented. U-shaped cards 4-2 are arranged on the outer side of the lower surface of the rotary disk 4-1 in four directions and are used for fixing the horizontal arm 4-4. The horizontal arm 4-4 is a steel arm and can slide freely along the U-shaped card 4-2 in the horizontal direction. The inner end of the horizontal arm 4-4 is provided with an anti-tripping device 4-5 for preventing the horizontal arm 4-4 from sliding out of the U-shaped card 4-2. A certain number of grooves are formed in one side of the horizontal arm 4-4 and can be matched with the fixing screws 4-9 on one side of the U-shaped card 4-2 to fix the horizontal arm 4-4. The vertical arm 4-6 is a steel arm with a hollow groove in the middle, and is fixedly connected with the outer end of the horizontal arm 4-4 through a connecting shaft II 4-7, and the vertical arm 4-6 and the connecting shaft II can rotate around the connecting shaft II 4-7. The surfaces of the horizontal arm 4-4 and the vertical arm 4-6 are provided with scales for the purpose of meeting the positioning of the ball nodes 8 with different spherical diameters. The annular clamp 4-8 is fixed on the vertical arm 4-6 and can slide vertically along the vertical arm 4-6, and a fixing screw 4-9 penetrating through a hollow groove of the vertical arm 4-6 is arranged at the middle part of the annular clamp and used for fixing the annular clamp 4-8. The inner side of the annular card 4-8 is provided with a positioning pointer 4-10 which contacts with the middle part of the ball joint 8 for positioning when in use. One side of the annular clamp 4-8 is provided with a leveling instrument fixing buckle 4-11 for fixing the leveling instrument 4-12, so that the accurate positioning of the vertical height of the ball joint 8 is realized. The lower string ball supporting device is slightly different from the positioning device 4 of the upper string ball supporting device, the lower string ball supporting device omits the rotating disc 4-1, and the U-shaped clamp 4-2 is directly fixed at the lower part of the bearing tray 5-1.
As shown in fig. 1-3 and 8, the carrying device 5 comprises a carrying tray 5-1, a positioning block 5-2, an l-shaped block 5-3, a positioning card 5-4, a rotating block 5-5, an oblique connecting lug 5-6, a connecting shaft three 5-7, a laser pen fixing card 5-8 and a laser pen 5-9. The bearing tray 5-1 is a steel square flat plate, four inclined positions are provided with strip-shaped grooves, and the lower part of the bearing tray is fixed with the rotating disk 4-1 of the positioning device 4. The positioning block 5-2 is a wedge-shaped block and is positioned at four strip-shaped grooves of the bearing tray 5-1 for auxiliary fixation of the ball joint 8. One end of the lower part of the positioning block 5-2 is connected with an L-shaped block 5-3, the L-shaped block 5-3 is clamped into four strip-shaped grooves of the bearing tray 5-1, a sawtooth groove is formed in the upper part of the L-shaped block 5-3, and the L-shaped block is matched with a positioning card 5-4 arranged on the bearing tray 5-1 to fix the positioning block 5-2. The rotating block 5-5 is arranged on the outer sides of the four strip-shaped grooves of the bearing tray 5-1, the lower chord ball supporting device is arranged on the upper surface, the upper chord ball supporting device is arranged on the lower surface, the inclined connecting lugs 5-6 can freely rotate around the rotating block 5-5 by 360 degrees, and the connecting shafts three 5-7 are arranged in the inclined connecting lugs 5-6 so as to adapt to the connection of inclined supporting rods at different angles. The side surface of the oblique connecting lug 5-6 is provided with a laser pen fixing clamp 5-8 for fixing the laser pen 5-9 so as to realize the auxiliary positioning of the connecting device.
As shown in fig. 1-3 and 9-10, the inner connecting arm 6 includes a connecting square tube 6-1, an end plate 6-2 and an annular ear 6-3. The main body of the inner connecting arm 6 is a hollow steel connecting square tube 6-1, and a groove with a fixed distance is arranged at the outer surface of the connecting square tube 6-1, and meanwhile, the inner connecting arm has the functions of scale and fixation. End plates 6-2 are arranged at two ends of the connecting square tube 6-1, and annular lugs 6-3 are arranged on the outer surface of the outer end plate 6-2 and used for being connected and fixed with a connecting shaft I3-4 of the fixed sleeve 3.
As shown in fig. 1-3 and fig. 9-10, the outer connecting arm 7 includes a connecting sleeve 7-1 and a locking screw 7-2. The connecting sleeve 7-1 is a hollow sleeve, the diameter of the sleeve is slightly larger than that of the connecting square tube 6-1, a convex groove with a fixed distance is formed in the inner wall of the connecting sleeve, and when the connecting sleeve is used, after the relative distance between the connecting sleeve 7-1 and the connecting square tube 6-1 is adjusted, the locking screw 7-2 at the lower part of the connecting sleeve 7-1 is screwed, so that the convex groove of the connecting sleeve 7-1 is meshed with the concave groove of the connecting square tube 6-1, and the connecting and fixing of the convex groove and the connecting square tube are realized.
The use of the invention is described below with reference to fig. 1-10:
1. measuring and paying off are carried out in advance according to the existing horizontal positioning points of a construction site, retesting is carried out on the datum point and the building axis in the civil engineering construction stage, each unit lower chord node control network of the net rack to be spliced is gradually placed on the ground according to the main axis of the column net, and review is carried out by using equipment such as a total station.
2. The lower string ball supporting device and the upper string ball supporting device and the matched connecting device are configured according to the number of the net rack ball nodes 8 to be assembled. The lower chord ball supporting device is arranged at each axis intersection point of the control network, the ball node 8 to be supported is placed on the bearing tray 5-1, the positioning block 5-2 is utilized for preliminary fixing, then the horizontal arm 4-4 and the vertical arm 4-6 of the positioning device 4 are adjusted to a proper position and fixed according to the ball diameter of the fixed ball node 8, the positioning pointer 4-10 is guaranteed to be just clamped to the middle maximum ball diameter of the ball node 8, the rotating disc 4-1 is properly rotated, and the vertical arm 4-6 is prevented from interfering with the connecting device installed next.
3. The height adjustment sleeve 2 is adjusted by means of the level gauges 4-12 to meet the height requirements of the ball joint 8. When the installation height of the ball joint 8 is too high and the height adjusting sleeve 2 does not meet the height requirement, the support frame can be partially erected on the lower part of the lower chord ball support device, and the vertical rods of the support frame penetrate through the support feet 1, so that the height of the support device is lifted.
4. The rotary piece 3-2 of the fixed sleeve 3 is adjusted to a proper position and fixed by the fixed pin 3-5, the inner connecting arm 6 is connected with the rotary piece 3-2 through the connecting shaft one 3-4, and the relative position of the inner connecting arm 6 and the outer connecting arm 7 is adjusted according to the relative distance between the two lower string ball supporting devices and fixed by the locking screw 7-2. So far, the installation of the lower string ball supporting device is completed.
5. The position of the oblique connecting lug 5-6 of the bearing device 5 is adjusted, the upper string ball node supporting device is positioned by utilizing the laser pen 5-9 according to the angle of the actual net rack oblique connecting rod 9, and the positioned upper string ball supporting device is connected with the lower string ball supporting device through the oblique connecting device. So far, the installation of the whole net rack ball joint positioning jig frame is completed.
According to the invention, the relative distance and the relative height between the lower string ball supporting device and the upper string ball supporting device can be adjusted in real time according to the field requirement, and the size of the positioning device is adjusted according to the size of the ball node, so that the positioning device has good adaptability; the on-site installation is convenient, the leveling instrument 4-11 and the laser pen 5-9 can assist the jig frame to accurately position, the installation precision is high, and the overall stability of the jig frame after the installation is finished is good; the device after the installation is completed has high degree of freedom, and can be disassembled and recycled after the use is completed, so that the resource is saved.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (9)
1. The utility model provides a net rack ball joint location bed-jig which characterized in that: the positioning jig frame is formed by connecting a plurality of quadrangular pyramid positioning units, each quadrangular pyramid positioning unit comprises four lower string ball supporting devices positioned at four corners of the bottom and an upper string ball supporting device positioned at the center of the upper part, wherein adjacent lower string ball supporting devices are connected through a straight pull rod, and each lower string ball supporting device is connected with the adjacent upper string ball supporting device through a diagonal pull rod;
each lower chord ball supporting device comprises a height adjusting foot positioned at the bottom and a bearing device (5) positioned at the upper part, a positioning device (4) is arranged between the height adjusting foot and the bearing device (5), and the positioning device (4) is rotatably connected between the height adjusting foot and the bearing device (5) through a rotating disc (4-1);
each upper string ball supporting device comprises a bearing device (5), and the bearing devices (5) are fixedly connected with a positioning device (4);
the positioning device is characterized in that the positioning device (4) comprises four horizontal arms (4-4) which are slidably arranged in the U-shaped clamp (4-2), each horizontal arm (4-4) is rotatably connected with a vertical arm (4-6), scales are arranged on the surfaces of the horizontal arms (4-4) and the vertical arms (4-6), each vertical arm (4-6) is provided with an annular clamp (4-8) which can slide up and down along the vertical arm, a positioning pointer (4-10) is arranged on the inner side of the annular clamp (4-8), and a level gauge (4-12) is arranged on the other side of the annular clamp.
2. A grid ball joint positioning jig as defined in claim 1, wherein: the positioning device (4) in the lower chord ball supporting device is rotatably connected between the height adjusting pin and the bearing device (5) through a rotating disc (4-1), the rotating disc (4-1) is a steel disc with a middle protruding round shaft, and the steel disc is fixedly connected with the height adjusting pin and the bearing device (5) through the round shaft and can drive the positioning device to rotate around the round shaft; u-shaped cards (4-2) for fixing the horizontal arms (4-4) are arranged in the four directions outside the lower surface of the rotary disk (4-1);
the U-shaped clamp (4-2) of the positioning device (4) in the upper string ball supporting device is directly fixed at the lower part of the bearing tray (5-1);
the horizontal arm (4-4) can horizontally move in the U-shaped clamp (4-2), one side of the horizontal arm is provided with a groove, a fixing screw (4-9) matched with one side of the U-shaped clamp (4-2) is fixed, an inner end head of the horizontal arm (4-4) is provided with an anti-tripping (4-5), an outer end head of the horizontal arm is provided with a connecting shaft II (4-7) and a vertical arm (4-6) which are fixed, scales are arranged on the surfaces of the connecting shaft II and can rotate around the connecting shaft II (4-7), the vertical arm (4-6) is a steel arm with a hollow groove in the middle, and the fixing screw (4-9) penetrates through the annular clamp (4-8) and the hollow groove of the vertical arm (4-6), so that the annular clamp (4-8) can vertically slide and fix along the vertical arm (4-6), and the connecting shaft II (4-7) is also used for connecting the straight pull rod.
3. A grid ball joint positioning jig as claimed in claim 1 or 2, wherein: the bearing device (5) comprises a bearing tray (5-1), the bearing tray (5-1) is a steel square flat plate with four oblique positions provided with strip grooves, and the positioning block (5-2) is a wedge-shaped block clamped in the strip grooves of the bearing tray (5-1) through L-shaped blocks (5-3) and can slide along the strip grooves; the upper part of the L-shaped block (5-3) is provided with a sawtooth groove which is matched with a positioning card (5-4) on the bearing tray (5-1) to fix the positioning block (5-2); the rotating block (5-5) is arranged on the outer side of the strip-shaped groove and is connected with an oblique connecting lug (5-6) capable of rotating 360 degrees around the rotating block (5-5), the rotating block and the oblique connecting lug are positioned on the upper surface of the bearing tray (5-1) in the lower chord ball supporting device, the rotating block is positioned on the lower surface of the bearing tray (5-1) in the upper chord ball supporting device, a connecting shaft III (5-7) is arranged in the oblique connecting lug (5-6) and is used for connecting the oblique pull rod, and a laser pen (5-9) is fixed on the side face of at least one oblique connecting lug (5-6) through a laser pen fixing clamp (5-8).
4. A grid ball joint positioning jig as claimed in claim 1 or 2, wherein: the height adjusting foot comprises a supporting foot (1), a height adjusting sleeve (2) and a fixing sleeve (3); the bottom of the height adjusting sleeve (2) is connected with the supporting feet (1), and the upper part of the height adjusting sleeve is connected with the fixing sleeve (3).
5. The grid ball joint positioning jig of claim 4, wherein: the supporting feet (1) comprise a supporting bottom plate (1-1), supporting rings (1-2) and stiffening ribs (1-3); the supporting bottom plate (1-1) is a steel circular ring, a circular hole with the same aperture as the supporting ring (1-2) is arranged in the middle of the supporting bottom plate, and the supporting bottom plate and the circular hole are fixedly connected through the stiffening ribs (1-3).
6. The grid ball joint positioning jig of claim 4, wherein: the height adjusting sleeve (2) comprises a sleeve bottom plate (2-1), an outer sleeve (2-2) and an inner sleeve (2-3); the sleeve bottom plate (2-1) is a round steel plate positioned at the upper part of the supporting ring (1-2), and an outer sleeve (2-2) and an inner sleeve (2-3) which are connected through threads are fixed at the upper part of the sleeve bottom plate, and are both steel cylinders.
7. The grid ball joint positioning jig of claim 4, wherein: the fixed sleeve (3) comprises a concave sleeve (3-1), a rotary piece (3-2), a horizontal connecting lug (3-3), a first connecting shaft (3-4) and a fixed pin (3-5); the concave sleeve (3-1) is a steel hollow cylinder with an outer side surface provided with a clamping groove, sealing plates are arranged on the upper side and the lower side, four rotating plates (3-2) capable of sliding along the circumferential direction are arranged in the clamping groove, the rotating plates (3-2) are fixed by fixing pins (3-5) after being adjusted according to the horizontal position between two adjacent lower chord ball supporting devices in use, the middle part of the outer side of the rotating plates (3-2) is provided with a horizontal connecting lug (3-3), and a connecting shaft I (3-4) is arranged in the horizontal connecting lug (3-3).
8. A grid ball joint positioning jig as defined in claim 1, wherein: the straight pull rod and the diagonal draw rod both comprise an outer connecting arm (7) and inner connecting arms (6) at two sides of the outer connecting arm, the outer connecting arm (7) comprises a connecting sleeve (7-1) and a locking screw (7-2); the inner connecting arm (6) comprises a connecting square tube (6-1), an end plate (6-2) and an annular lug (6-3); the connecting square tube (6-1) is a hollow steel tube with a groove at a fixed distance on the outer surface, end plates (6-2) are arranged at two ends, and annular lugs (6-3) are arranged on the outer surface of the outer end plate (6-2); the connecting sleeve (7-1) is a hollow type sleeve with a fixed-distance convex groove on the inner wall, the diameter of the sleeve is slightly larger than that of the connecting square tube (6-1), and when the connecting sleeve is used, the convex groove of the connecting sleeve (7-1) is meshed with the concave groove of the connecting arm (7) through screwing the locking screw (7-2) at the lower part of the connecting sleeve (7-1), so that the connection and fixation of the convex groove and the concave groove of the connecting arm (7) are realized.
9. A method of installing a grid ball node locating jig, the method being based on a grid ball node locating jig as defined in any one of claims 1 to 8, comprising the steps of:
measuring and paying off according to the existing horizontal positioning points of a construction site in advance, arranging a lower chord node control network of each unit of the net rack to be spliced on the ground, and rechecking by using equipment such as a total station;
setting a lower chord ball supporting device at an axis intersection point of a control network, and adjusting and fixing a horizontal arm (4-4) and a vertical arm (4-6) of a positioning device (4) to a proper position according to the ball diameter of a fixed ball node (8);
the height adjusting sleeve (2) is adjusted by using the level gauge (4-12) to meet the height requirement of the ball joint (8), if the installation height of the ball joint (8) is too high, a supporting frame can be partially erected, and the vertical rod of the supporting frame passes through the supporting leg (1) to realize the height lifting of the supporting device;
the rotary piece (3-2) of the fixed sleeve (3) is adjusted to a proper position and fixed, the inner connecting arm (6) is connected with the first connecting shaft (3-4), the relative distance between the inner connecting arm (6) and the outer connecting arm (7) of the straight pull rod is adjusted and fixed according to the relative distance between the two lower string ball supporting devices, and thus, the installation of the lower string ball supporting devices is completed;
the position of an oblique connecting lug (5-6) of the bearing device (5) is adjusted, the upper string ball supporting device is positioned by utilizing a laser pen (5-9) according to the angle of an actual net rack oblique connecting rod (9), and the positioned upper string ball supporting device and the positioned lower string ball supporting device are connected through an oblique pull rod, so that the installation of the positioning jig frame of the whole net rack ball joint is completed.
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