CN211873352U - Truss node connection fixing device - Google Patents
Truss node connection fixing device Download PDFInfo
- Publication number
- CN211873352U CN211873352U CN201922269662.XU CN201922269662U CN211873352U CN 211873352 U CN211873352 U CN 211873352U CN 201922269662 U CN201922269662 U CN 201922269662U CN 211873352 U CN211873352 U CN 211873352U
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- Prior art keywords
- pipe
- guide
- truss
- square pipe
- fixing device
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- 230000007704 transition Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model relates to a truss node connection fixing device, rotate the connecting piece including a fixed connector and two, fixed connector is including connecting the pipe, it all is provided with baffle and conducting bar to connect the pipe both sides, the baffle is the rounding form, and the convex limit outside of baffle is the gear form, forms the guide slot between baffle and the conducting bar, is provided with the location axle in the connection pipe, it includes connecting square pipe to rotate the connecting piece, connecting square pipe one end middle part is provided with the circular-arc spout of indent, is provided with the connecting plate on the connecting square pipe, and connecting square pipe middle part is vertical to be provided with the pivot, and the fixed registrates gear in pivot middle part. An object of the utility model is to solve present truss connection spare intensity low, unable regulation, unable modularization mill processing and the problem that can not reuse still, provide a truss nodal connection fixing device.
Description
Technical Field
The utility model relates to a construction equipment field, concretely relates to truss nodal connection fixing device.
Background
In recent years, with the rapid development of large-span stadiums, ceilings and platform structures, the application of a steel pipe truss structure in engineering is more and more extensive, and a main pipe of an intersecting part is a position where damage is most likely to occur due to the fact that the radial rigidity of a main pipe of the joint is far less than the axial rigidity of a branch pipe and the weld toe part has large stress concentration and complex residual stress, so that the main pipe of the intersecting part generally needs to be reinforced to improve the bearing performance of the pipe joint according to the principle of 'strong joint and weak rod piece'. Common reinforcement methods include built-in stiffening ring reinforcement, built-in insert plate reinforcement, local thickening reinforcement, backing plate reinforcement, ring opening plate reinforcement, external stiffening rib plate reinforcement and the like. These reinforcement methods are relatively difficult to construct, have cuts or weld damage to the host pipe, and affect the aesthetic appearance of the structure. In addition, the conventional truss structure has the following disadvantages:
1) at present, the connection nodes in the truss structure are commonly connected by welding and high-strength bolts. The metallographic structure is changed due to welding, welding deformation and residual stress cannot be avoided, the connection cannot be attached tightly due to insufficient groove machining precision, and manufacturing and mounting precision is affected; the high-strength bolt connection node is complex in structure and large in bolt quantity, and the phenomenon of over-screwing or less-screwing frequently occurs in construction, so that the safety performance of the structure is influenced.
2) The common steel pipe truss splicing adopts intersecting nodes, splicing and welding are needed on site, and lofting cutting and pipe coiling welding processes are needed for variable-section conical head nodes. In the manufacturing of intersecting joints, intersecting line cutting is regarded as a difficult manufacturing process, because the intersecting line shapes are different due to different numbers, angles and sizes of intersecting steel pipes, the groove processing is difficult, and the difficulty is higher in the field installation of a space structure.
3) The traditional truss connecting piece is required to be customized according to the field when being connected with steel pipes at different angles, so that the precision is not easy to guarantee and the steel pipes cannot be reused.
4) The traditional truss structure cannot be formed in the modularized factory processing and assembling type installation construction process, the manufacturing and installation conditions are complex, and the precision and the quality are difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, solve present truss connection spare intensity low, unable regulation, unable modularization mill processing and the problem that can not reuse still, provide a truss nodal connection fixing device.
In order to realize the above purpose, the utility model discloses a technical scheme is:
a truss node connecting and fixing device comprises a fixed connecting piece and two rotating connecting pieces, wherein the two rotating connecting pieces are respectively arranged on two sides of the fixed connecting piece;
the fixed connecting piece comprises a connecting circular tube, guide plates and guide strips are arranged on two sides of the connecting circular tube, the guide plates are in a segmental shape, the outer sides of the arc edges of the guide plates are in a gear shape, the guide strips are in an arc shape, the guide plates and the guide strips are coaxially arranged at intervals, guide grooves are formed between the guide plates and the guide strips, a positioning shaft is arranged in the connecting circular tube, and the axis of the positioning shaft is superposed with the axis of the guide plates;
the utility model discloses a quick-witted guide slot, including the connecting piece, the connecting piece is rotated including connecting square pipe, connecting square pipe one end middle part is provided with the circular-arc spout of indent, and the spout and the baffle of connecting square pipe and conducting bar correspond the setting, are provided with the connecting plate on the connecting square pipe, connecting plate one end and connecting square pipe fixed connection, the other end pass and connect the pipe and rotate with the location axle and be connected, and the vertical pivot that is provided with in connecting square pipe middle part, the pivot rotates with connecting square pipe and is connected and be located fixed connection's guide slot, and the fixed registrates the gear in pivot middle part, gear and baffle outside intermeshing, the equal thread cover.
In order to further realize the utility model discloses, can prefer following technical scheme for use:
preferably, the one end that connecting square pipe kept away from the connecting plate is provided with the transition pipe, the transition pipe is the pipe form and with the coaxial setting of connecting square pipe.
Preferably, the two sides of one end, close to the connecting circular tube, of the connecting square tube are provided with chamfers.
Preferably, the number of the connecting plates is two, and the two connecting plates are respectively positioned at the upper side and the lower side of the sliding groove of the connecting square pipe.
Preferably, the connecting plates of the two rotary connectors are located at different heights and do not interfere with each other.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a rotation connecting piece rotates along fixed connector's location axle, can adjust fixed connector and rotate the angle between the connecting piece, makes two rotation connecting pieces be connected with the steel pipe of different angles, and the suitability is strong.
The utility model discloses the pivot at rotation connecting piece middle part is located fixed connection spare's guide slot, and the gear and the baffle meshing at pivot middle part not only prevent to rotate the connecting piece and break away from fixed connection spare, have ensured the intensity of node, can also keep fixed with the relative position of pivot and connecting square pipe through holding nut, and the location through gear and baffle makes the relative position who rotates connecting piece and fixed connection spare keep fixed, ensures the reliability of nodal connection.
The utility model discloses a modular design with adjustable, the batch processing and the construction of not only being convenient for can recycle once more moreover, has improved the efficiency of construction, has reduced construction cost.
Drawings
Fig. 1 is a schematic structural view of a truss node connecting and fixing device of the present invention;
fig. 2 is a top view of the truss joint connecting and fixing device of the present invention;
fig. 3 is a side sectional view of the truss joint connecting and fixing device of the present invention;
fig. 4 is a schematic structural view of a fixing connector of the truss node connecting and fixing device of the present invention;
fig. 5 is a structural cross-sectional view of a fixing connector of the truss joint connecting and fixing device of the present invention;
fig. 6 is one of the structural schematic diagrams of the rotating connecting member of the truss joint connecting and fixing device of the present invention;
fig. 7 is a second schematic structural view of a rotary connecting member of a truss joint connection fixing device according to the present invention;
fig. 8 is a structural cross-sectional view of a rotary connecting member of a truss joint connection fixing device of the present invention;
wherein, 1-connecting the circular tube; 2-a guide plate; 3-conducting bars; 4-positioning the shaft; 5-connecting the square tubes; 6-connecting plates; 7-a chute; 8-a rotating shaft; 9-gear; 10-tightening the nut; 11-transition duct.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 8, a truss node connecting and fixing device includes a fixed connecting member and two rotating connecting members, which are respectively disposed at both sides of the fixed connecting member;
the fixed connecting piece comprises a connecting circular tube 1, guide plates 2 and guide strips 3 are welded on two sides of the connecting circular tube 1, the guide plates 2 are in a segmental shape, the outer sides of the arc edges of the guide plates 2 are in a gear 9 shape, the guide strips 3 are in an arc shape, the guide plates 2 and the guide strips 3 are coaxially arranged at intervals, guide grooves are formed between the guide plates 2 and the guide strips 3, a positioning shaft 4 is fixed in the connecting circular tube 1, and the axis of the positioning shaft 4 is superposed with the axis of the guide plates 2;
the rotation connecting piece includes connecting square pipe 5, 5 one end middle parts cuts of connecting square pipe has circular-arc spout 7 of indent, connecting square pipe 5's spout 7 corresponds the setting with baffle 2 and conducting bar 3, connecting plate 6 has all been welded to the upper and lower both sides of connecting square pipe 5's spout 7, two connecting plate 6 that rotate the connecting piece are located different height and mutually noninterfere, 6 one end of connecting plate and connecting square pipe 5 welding, the other end passes connecting pipe 1 and is connected with 4 rotations in location axle, connecting square pipe 5 is close to the one end both sides of connecting pipe 1 and all is provided with the chamfer, connecting square pipe 5 middle part vertical rotation is connected with pivot 8, pivot 8 is located fixed connection's guide slot, 8 middle parts in the pivot are fixed with gear 9, gear 9 and 2 outside intermeshing of baffle, 8 both ends stretch out connecting square pipe 5 equal screw thread registries.
In order to facilitate the connection of the square connecting pipe 5 and the steel pipe of the truss, one end of the square connecting pipe 5, which is far away from the connecting plate 6, is provided with a transition pipe 11, and the transition pipe 11 is in a circular pipe shape and is coaxially arranged with the square connecting pipe 5.
The working process of the embodiment is as follows:
when the steel pipe truss joint connection device is used for connecting the joints of the steel pipe truss, the two ends of the fixed connecting piece and the steel pipe to be connected are connected into a whole through the pin; then the tight set nut 10 of unscrewing, make pivot 8 can rotate, rotate two and rotate the connecting piece this moment, make the position of two rotation connecting pieces correspond with the steel pipe position that needs to be connected, tighten the tight set nut 10 at 8 both ends of pivot, tight set nut 10 bottom surface and 5 lateral surfaces of connecting square pipe laminating, make pivot 8 unable rotations, because gear 9 on the pivot 8 meshes with the 2 outsides of baffle, the relative position that the location made the rotation connecting piece and fixed connection spare keeps fixed, at last pass through pin joint as an organic whole with the steel pipe that needs to be connected with transition pipe 11 of connecting square pipe 5 outer end, a truss nodal connection is accomplished.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.
Claims (5)
1. The truss node connecting and fixing device is characterized by comprising a fixed connecting piece and two rotating connecting pieces, wherein the two rotating connecting pieces are respectively arranged on two sides of the fixed connecting piece;
the fixed connecting piece comprises a connecting circular tube (1), guide plates (2) and guide strips (3) are arranged on two sides of the connecting circular tube (1), the guide plates (2) are in a segmental shape, the outer sides of the arc-shaped edges of the guide plates (2) are in a gear (9) shape, the guide strips (3) are in an arc shape, the guide plates (2) and the guide strips (3) are coaxially arranged at intervals, guide grooves are formed between the guide plates (2) and the guide strips (3), a positioning shaft (4) is arranged in the connecting circular tube (1), and the axis of the positioning shaft (4) is superposed with the axis of the guide plates (2);
the rotary connecting piece comprises a connecting square pipe (5), an inward-concave arc-shaped sliding groove (7) is arranged in the middle of one end of the connecting square pipe (5), the sliding groove (7) of the connecting square pipe (5) is arranged corresponding to the guide plate (2) and the guide strip (3), a connecting plate (6) is arranged on the connecting square pipe (5), one end of the connecting plate (6) is fixedly connected with the connecting square tube (5), the other end of the connecting plate passes through the connecting round tube (1) to be rotatably connected with the positioning shaft (4), the middle part of the connecting square tube (5) is vertically provided with a rotating shaft (8), the rotating shaft (8) is rotationally connected with the connecting square pipe (5) and is positioned in the guide groove of the fixed connecting piece, the middle part of the rotating shaft (8) is fixedly sleeved with a gear (9), the gear (9) is meshed with the outer side of the guide plate (2), and the two ends of the rotating shaft (8) extend out of the connecting square pipe (5) and are sleeved with the fastening nuts (10) in a threaded manner.
2. The truss joint connecting and fixing device is characterized in that a transition pipe (11) is arranged at one end, far away from the connecting plate (6), of the square connecting pipe (5), and the transition pipe (11) is in a circular pipe shape and is coaxially arranged with the square connecting pipe (5).
3. The truss joint connecting and fixing device is characterized in that two sides of one end, close to the connecting circular tube (1), of the connecting square tube (5) are provided with chamfers.
4. The truss joint connecting and fixing device is characterized in that the number of the connecting plates (6) is two, and the two connecting plates (6) are respectively positioned at the upper side and the lower side of the sliding groove (7) of the connecting square pipe (5).
5. A truss nodal connection fixation arrangement as claimed in claim 1 wherein the webs (6) of the two said pivotal connections are at different heights and do not interfere with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922269662.XU CN211873352U (en) | 2019-12-17 | 2019-12-17 | Truss node connection fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922269662.XU CN211873352U (en) | 2019-12-17 | 2019-12-17 | Truss node connection fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211873352U true CN211873352U (en) | 2020-11-06 |
Family
ID=73243477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922269662.XU Expired - Fee Related CN211873352U (en) | 2019-12-17 | 2019-12-17 | Truss node connection fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211873352U (en) |
-
2019
- 2019-12-17 CN CN201922269662.XU patent/CN211873352U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |