CN205677068U - A kind of general hinged joint of spatial mesh structure - Google Patents

Abstract

The utility model discloses a universal hinged node of a space grid structure, which comprises a central steel ball, several node connectors and a plurality of bar connectors. The outer surface of the central steel ball is provided with a plurality of first clamping slots, and each first clamping The slots are in an annular structure, and the first slots are distributed sequentially from top to bottom, and the first slots are parallel to each other, and the inner surface of each node connector is provided with a number of first protrusions that cooperate with the first slots. Each of the first protrusions is empty and snapped into the corresponding first slot. The outer surface of the node connector is provided with a number of second slots in the axial direction. The rod connector is provided with the corresponding second slot. The second protrusion matched with the card slot, the second protrusion is empty and snapped into the corresponding second card slot, one of the second card slots corresponds to a second protrusion, and the node connector is connected with the central steel ball , the bar connectors are connected to the corresponding node connectors. The rods in this node can move freely and have good flexibility.

Description

A General Articulation Node of Spatial Grid Structure

technical field

The utility model belongs to the field of assembly node design and relates to a universal hinged node of a space grid structure.

Background technique

With the continuous improvement of architectural design theory and structural design level, space grid structure is more and more widely used in the design of steel structure buildings because of its flexible and changeable expressive force. The main structure of space grid nodes is composed of The central block and the rods connected with the central block are composed. For example, the central block and the rods disclosed in the Chinese patent publication No. 205171694U are mostly connected by welding or threaded fixing. Since the position between the central block and the rods is It is fixed, so it seriously affects the flexibility of its use; the Chinese patent publication No. 102561526A can swing left and right between the central block and the bar, but it can not move freely, and its flexibility is also limited. Therefore, it is necessary to design a spatial grid node that can move freely and have better flexibility.

Utility model content

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art, and to provide a universal hinge node of a spatial grid structure, in which the rods can move freely and have good flexibility.

In order to achieve the above-mentioned purpose, the universal hinge joint of the spatial grid structure described in the utility model comprises a central steel ball, several node connectors and some rod connectors, and the outer surface of the central steel ball is provided with There are several first card slots, each first card slot is a ring structure, each first card slot is distributed sequentially from top to bottom, and each first card slot is parallel to each other, and the inner surface of each node connector is provided with a number of The first projections cooperating with each first slot, each first projection is empty and snapped into the corresponding first slot, and the outer surface of the node connector is provided with a plurality of second slots in the axial direction. The rod connector is provided with a second protrusion that matches the corresponding second slot. The second protrusion is empty and snapped into the corresponding second slot. One of the second slots corresponds to a rod connection. piece and a second protrusion, the node connecting piece is connected with the central steel ball, and the bar connecting piece is connected with the corresponding node connecting piece.

The central steel ball is provided with a hollow cavity.

The number of the first card slots is greater than or equal to two.

The inner surface of each node connecting piece is an arc surface fitted to the outer wall of the central steel ball, and the contact surface of each bar connecting piece and the node connecting piece is an arc surface fitted.

A plurality of first threaded holes are provided in the first card slot, and the first bolt is inserted into the first threaded hole through the first node connector to connect the node connector with the central steel ball;

Several pairs of second threaded holes are arranged in the second slot, wherein the distance between the two second threaded holes in each pair of second threaded holes is equal to the width of the rod connector. When fixing, the rod connector Located between a pair of second threaded holes, two second bolts are respectively inserted into the pair of second bolt holes to clamp and fix the rod connecting piece on the node connecting piece.

The arc center corresponding to the arc surface in contact with the first protrusion on the first slot coincides with the center of the steel ball, and the arc surface in contact with the second protrusion on the second slot corresponds to The center of arc coincides with the center of the center steel ball.

It also includes a first nut, a second nut and a screw rod, the inner wall of the first card slot is provided with a plurality of first bar-shaped grooves, and the surface of the first protrusion is provided with a number of bars that cooperate with the first bar-shaped grooves. The first strip-shaped protrusion, the end of the screw rod is connected to the first protrusion through the node connector, the first nut is sleeved on the screw rod, and the first nut drives the screw rod to tighten the first strip-shaped protrusion to tighten the first strip-shaped protrusion A strip-shaped protrusion is clamped in the first strip-shaped groove to realize the fixation of the node connector and the central steel ball;

The outer wall of the rod connector is provided with external threads, the top of the inner wall of the second card slot is provided with a plurality of second bar-shaped grooves, and the top of the second protrusion is provided with The second bar-shaped protrusion, the second nut is sleeved on the rod connector, and the rod connector is driven by the second nut to tighten the second bar-shaped protrusion, and the second bar-shaped protrusion is clamped to the second bar The fixing of the rod connecting piece and the node connecting piece is realized in the shaped groove.

The rod connecting piece is connected with the external rod through thread.

Scale lines are arranged on the central steel ball and on the node connectors along the circumference.

The utility model has the following beneficial effects:

The universal hinge joint of the space grid structure described in the utility model includes a central steel ball, a node connector and a rod connector, and the node connector realizes the connection of the node connector through the mutual cooperation of the first protrusion and the first clamping groove. Free movement in the horizontal circumferential direction, the rod connecting part cooperates with the second protrusion and the second slot to realize the vertical circumferential free movement of the rod connecting part on the node connecting part, so as to realize the automatic movement of the rod connecting part , good flexibility, can meet various combinations in the spatial grid structure, and has a simple structure, low cost, and has broad application prospects.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view of the center steel ball 1 in the utility model;

Fig. 3 is the front view of center steel ball 1 in the utility model;

Fig. 4 is the structural schematic diagram of node connector 2 in the utility model;

Fig. 5 is a structural schematic diagram of the rod connector 3 in the utility model;

FIG. 6 is a positional diagram of the first strip-shaped protrusion and the first strip-shaped groove in the second embodiment.

Wherein, 1 is a central steel ball, 2 is a node connector, 3 is a rod connector, 4 is a screw, 5 is a first nut, 6 is a first protrusion, and 7 is a first slot.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the universal hinge joint of the spatial grid structure described in the utility model comprises a central steel ball 1, several node connectors 2 and some bar connectors 3, the center The outer surface of the steel ball 1 is provided with a plurality of first locking grooves 7, each first locking groove 7 is an annular structure, each first locking groove 7 is distributed sequentially from top to bottom, and each first locking groove 7 is parallel to each other, The inner surface of each node connector 2 is provided with a number of first protrusions 6 that cooperate with each first card slot 7, and each first protrusion 6 is empty and snapped into the corresponding first card slot 7, and the node connection The outer surface of the member 2 is provided with a number of second slots in the axial direction, and the rod connector 3 is provided with a second protrusion that matches the corresponding second slot, and the second protrusion is empty and snapped into the corresponding In the second card slot, one of the second card slots corresponds to a rod connector 3 and a second protrusion, the node connector 2 is connected to the central steel ball 1, and the rod connector 3 is connected to the corresponding node connector 2 connected.

It should be noted that the central steel ball 1 is provided with a hollow cavity; the number of the first slots 7 is greater than or equal to 2; Surface, the contact surface of each rod connecting piece 3 and node connecting piece 2 is a circular arc surface that fits; the arc center corresponding to the arc surface contacting with the first protrusion 6 on the first card groove 7 and The center of the center steel ball 1 is coincident, and the arc center corresponding to the arc surface in contact with the second protrusion on the second card slot coincides with the center of the center steel ball 1; the rod connecting part 3 and the external rod Through screw connection; the central steel ball 1 and the node connector 2 are provided with scale marks along the circumferential direction.

Embodiment one

Several first threaded holes are provided in the first card slot 7, and the first bolt is inserted into the first threaded hole through the first node connector 2 to connect the node connector 2 with the central steel ball 1;

Several pairs of second threaded holes are arranged in the second draw-in groove, wherein the spacing between the two second threaded holes in each pair of second threaded holes is equal to the width of the rod connector 3. When fixing, the rod is connected The member 3 is located between a pair of second threaded holes, and two second bolts are respectively inserted into the pair of second bolt holes to clamp and fix the rod connecting member 3 on the node connecting member 2 .

Embodiment two

The utility model also includes a first nut 5, a second nut and a screw rod 4, the inner wall of the first draw-in groove 7 is provided with a plurality of first bar-shaped grooves, and the surface of the first protrusion 6 is provided with a plurality of The first strip-shaped protrusion matched with the first strip-shaped groove, the end of the screw rod 4 passes through the node connector 2 and is connected to the first protrusion 6, the first nut 5 is sleeved on the screw rod 4, and the first nut 5 Drive the screw 4 to tighten the first strip-shaped protrusion, and clamp the first strip-shaped protrusion into the first strip-shaped groove to realize the fixing of the node connector 2 and the central steel ball 1;

The outer wall of the rod connector 3 is provided with external threads, the top of the second draw-in groove inner wall is provided with a plurality of second bar-shaped grooves, and the top of the second protrusion is provided with a groove corresponding to the second bar-shaped groove. The matched second strip-shaped protrusion, the second nut is sleeved on the rod connecting piece 3, and the second strip-shaped protrusion is clamped on the second strip-shaped protrusion by driving the rod connecting piece 3 to tighten the second strip-shaped protrusion. The fixing of the rod connecting piece 3 and the node connecting piece 2 is realized in the second bar-shaped groove.

Claims (9)

1. the general hinged joint of a spatial mesh structure, it is characterised in that include center steel ball (1) if dry contact connects Part (2) and some bar connecting pieces (3), the lateral surface of center steel ball (1) offers some first draw-in grooves (7), each first draw-in groove (7) being loop configuration, each first draw-in groove (7) is sequentially distributed from top to bottom, and is parallel to each other between each first draw-in groove (7), respectively saves The medial surface of some connector (2) is provided with some first protruding (6) cooperated with each first draw-in groove (7), each first protruding (6) Empty set is also connected in corresponding the first draw-in groove (7), and the lateral surface of node connector (2) offers some second cards vertically Groove, it is protruding that bar connecting piece (3) is provided with second matched with corresponding second draw-in groove, and the second protruding empty set is also connected in correspondence The second draw-in groove in, one of them second corresponding bar connecting piece (3) of draw-in groove and one second protruding, node connector (2) being connected with center steel ball (1), bar connecting piece (3) is connected with corresponding node connector (2).

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that described center steel ball (1) it is provided with hollow cavity.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that described first draw-in groove (7) number is more than or equal to 2.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that each node connector (2) medial surface is the arc surface that the outer wall with center steel ball (1) fits, each bar connecting piece (3) and node connector (2) Contact surface be the arc surface fitted.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that described first draw-in groove (7) being provided with some first screwed holes in, it is interior by node that the first bolt is inserted in the first screwed hole through primary nodal point connector (2) Connector (2) is connected with center steel ball (1)；

Be provided with some to the second screwed hole in second draw-in groove, the most each to two the second screwed holes between the second screwed hole it Between spacing equal to the width of bar connecting piece (3), time fixing, bar connecting piece (3) between a pair second screwed holes, two Individual second bolt is inserted in this respectively and is clamped and fastened on node connector (2) by bar connecting piece (3) in the second bolt hole.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that described first draw-in groove (7) arc core that upper and that first protruding (6) contact cambered surface is corresponding overlaps with the centre of sphere of center steel ball (1), described second draw-in groove The upper arc core corresponding with the cambered surface that the second projection contacts overlaps with the centre of sphere of center steel ball (1).

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that also include the first nut (5), the second nut and screw rod (4), the inwall of described first draw-in groove (7) is provided with some Article 1 connected in stars, first protruding (6) Surface be provided with the first strip bulge that some and described Article 1 connected in star coordinates, the end of screw rod (4) through node connect Part (2) is connected with first protruding (6), and the first nut (5) is socketed on screw rod (4), drives screw rod by the first nut (5) (4) strain in the first strip bulge is connected in Article 1 connected in star by the first strip bulge and realize node connector (2) and center Fixing of steel ball (1)；

The outer wall of described bar connecting piece (3) is provided with external screw thread, and it is recessed that the top of the second draw-in groove inwall is provided with some second bar shapeds Groove, the top of the second projection is provided with the second strip bulge matched with described Article 2 connected in star, and the second nut sleeve is connected to bar On part connector (3), bar connecting piece (3) is driven to strain the second strip bulge by the second strip bulge clamping by the second nut The fixing of bar connecting piece (3) and node connector (2) is realized in Article 2 connected in star.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that bar connecting piece (3) It is threaded connection with external rod member.

The general hinged joint of spatial mesh structure the most according to claim 1, it is characterised in that on center steel ball (1) And circumferentially it is equipped with graduation mark on node connector (2).