CN105926769B - The general assemble formula node of spatial mesh structure - Google Patents

Abstract

The invention discloses a general assembled 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 card slots are distributed sequentially from top to bottom, and the first card 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 card 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

Universal Fabricated Nodes for Spatial Grid Structures

technical field

The invention belongs to the field of assembly node design and relates to a general assembly type node with 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.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a universal assembled node with a space grid structure, in which the rods can move freely and have good flexibility.

In order to achieve the above object, the general assembled node of the space grid structure according to the present invention comprises a central steel ball, some node connectors and some rod connectors, and the outer surface of the central steel ball 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 protrusions cooperating with each first slot, each first protrusion is empty and snapped into the corresponding first slot, and the outer surface of the node connector is provided with several second slots in the axial direction , the rod connector is provided with a second protrusion that matches the corresponding second slot, and the second protrusion is empty and snapped into the corresponding second slot, wherein one second slot corresponds to a rod The connecting 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 present invention has the following beneficial effects:

The universal assembled node of the space grid structure according to the present invention includes a central steel ball, a node connector and a rod connector, and the node connector realizes the joint 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 a structural representation of the present invention;

Fig. 2 is the sectional view of central steel ball 1 in the present invention;

Fig. 3 is the front view of center steel ball 1 in the present invention;

Fig. 4 is a schematic structural view of a node connector 2 in the present invention;

Fig. 5 is a structural schematic diagram of a rod connector 3 in the present invention;

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

The present invention is described in further detail below in conjunction with accompanying drawing:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the universal assembled node of the spatial grid structure according to the present invention includes 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 present invention also includes a first nut 5, a second nut and a screw rod 4. The inner wall of the first clamping 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 a 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 rod 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 (7)

1. the general assemble formula node of a kind of spatial mesh structure, it is characterised in that connect including center steel ball (1), some nodes Fitting (2) and some bar connecting pieces (3), the lateral surface of center steel ball (1) offer some first necks (7), each first card Groove (7) is loop configuration, and each first neck (7) is sequentially distributed from top to bottom, and is parallel to each other between each first neck (7), respectively The medial surface of node connector (2) is provided with some first raised (6) to be cooperated with each first neck (7), and each first is raised (6) in empty set and the first neck (7) corresponding to being connected in, some the are offered on the lateral surface of node connector (2) vertically Two draw-in groove, bar connecting piece (3) are provided with the second projection being engaged with corresponding second neck, and the second raised empty set is simultaneously connected in In corresponding second neck, the corresponding bar connecting piece (3) of one of them second neck and one second raised, node connection Part (2) is connected with center steel ball (1), and bar connecting piece (3) is connected with corresponding node connector (2)；

The center steel ball (1) is provided with hollow cavity；

The arc surface that the medial surface of each node connector (2) fits for the outer wall with center steel ball (1), each bar connecting piece (3) contact surface with node connector (2) is the arc surface to fit.

2. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that first neck (7) number is more than or equal to 2.

3. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that first neck (7) some first screwed holes are provided with, the first bolt is inserted in node in the first screwed hole through first node connector (2) Connector (2) is connected with center steel ball (1)；

Be provided with second neck it is some to the second screwed hole, wherein each two the second screwed holes between the second screwed hole it Between spacing be equal to the width of bar connecting piece (3), when fixed, bar connecting piece (3) is between a pair of second screwed holes, two Individual second bolt is inserted in this to bar connecting piece (3) is clamped and fastened on node connector (2) in the second bolt hole respectively.

4. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that first neck (7) arc core corresponding with the cambered surface that first raised (6) are in contact overlaps with the centre of sphere of center steel ball (1) on, second neck Upper arc core corresponding with the cambered surface that the second projection is in contact overlaps with the centre of sphere of center steel ball (1).

5. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that also including the first spiral shell Female (5), the second nut and screw rod (4), the inwall of first neck (7) are provided with some first strip grooves, and first is raised (6) surface is provided with some the first strip bulges coordinated with first strip groove, and the end of screw rod (4) connects through node Fitting (2) is connected with first raised (6), and the first nut (5) is socketed on screw rod (4), and screw rod is driven by the first nut (5) (4) the first strip bulge is connected in the first strip groove by the first strip bulge of tension realizes node connector (2) and center The fixation of steel ball (1)；

The outer wall of the bar connecting piece (3) is provided with external screw thread, and the top of the second neck inwall is recessed provided with some second bar shapeds Groove, the second raised top are provided with the second strip bulge being engaged with second strip groove, and the second nut is socketed on bar On part connector (3), bar connecting piece (3) is driven to tense the second strip bulge by the second strip bulge clamping by the second nut In the fixation that bar connecting piece (3) and node connector (2) are realized in the second strip groove.

6. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that bar connecting piece (3) it is connected through a screw thread with external rod member.

7. the general assemble formula node of spatial mesh structure according to claim 1, it is characterised in that center steel ball (1) Graduation mark is circumferentially equipped with upper and node connector (2).