A novel space frame node device

Abstract

This application discloses a novel space frame node device, belonging to the technical field of space frame components. It provides a space frame node device that can stably connect to purlins and the outer frame. The device includes hemispheres that can be used individually or in pairs. Each hemisphere has a large end face and a small end face, with at least two inclined surfaces between them. The hemispheres have internal threaded holes within the inclined surfaces and recessed grooves between the inclined surfaces. A through-hole penetrating the large end face is formed within the recessed groove. A stud is also fixedly connected to the large end face, with the stud of one hemisphere suitable for passing through the through-hole of the other hemisphere. This application, by designing hemispheres that can be used independently or in pairs, enables the node device to not only stably connect to purlins inside the space frame but also to achieve full contact and stable connection with the planar frame at the edge of the space frame using the large end face of the hemisphere and the unfitted stud. By opening an insertion channel in the middle of the hemisphere, it can cooperate with a positioning rod to achieve positioning during construction.

Description

Technical Field

[0001] This application relates to the field of space frame component technology, and in particular to a novel space frame node device. Background Technology

[0002] During the construction of the space frame, the node devices used are needed to fix the purlins that make up the space frame. Most of the existing node devices are regular polyhedra. Although they can be connected to the purlins, the area of ​​each face of the node device is not large, and it cannot fully contact and connect with the outer frame structure of the space frame. The connection stability between the node device and the outer frame may not be as good as the connection stability with the purlins. Summary of the Invention

[0003] The purpose of this application is to provide a grid node device that can be stably connected to purlins and outer frame.

[0004] To achieve the above objectives, this application provides a novel space frame node device: comprising hemispheres used individually or in pairs, each hemisphere having a large end face and a small end face, with at least two inclined surfaces between the large and small end faces, each hemisphere having an internal threaded hole in the inclined surfaces, a countersunk groove between the inclined surfaces, and a through hole penetrating the large end face in the countersunk groove, and a stud fixedly connected to the large end face, the stud of one hemisphere being adapted to pass through the through hole of the other hemisphere, the two hemispheres being adapted to form a complete sphere, the stud cooperating with a limiting component after passing through the through hole to ensure the relative stability of the two hemispheres.

[0005] As a preferred embodiment, the limiting component includes an external hexagonal nut and a washer. The external hexagonal nut is adapted to engage with the threaded stud, and the washer is adapted to replace the external hexagonal nut in contact with the hemisphere to maintain the tightness of the external hexagonal nut and prevent it from loosening.

[0006] As a preferred embodiment, there are four inclined surfaces, which are equidistantly arranged around the axis of the hemisphere, and the small end face is surrounded by the inclined surfaces to form a regular multifaceted structure.

[0007] As a preferred embodiment, there are two sets of the combination of the countersunk groove and the through holes. The axes of the two through holes are symmetrical about the axis of the hemisphere. There are also two studs, and the axes of the two studs are also symmetrical about the axis of the hemisphere. The axes of the through holes and the studs are parallel to the axis of the hemisphere, and the distance between the axis of the through hole and the axis of the hemisphere is the same as the distance between the axis of the stud and the axis of the hemisphere. The plane containing the axes of the two through holes is perpendicular to the plane containing the axes of the two studs. In this way, the two hemispheres can interlock in opposite directions and fit perfectly.

[0008] As a preferred embodiment, the inner wall dimension of the recess is larger than the circumscribed circle diameter of the external hexagonal nut, and the small end face is parallel to the large end face. When the hemisphere is upright, both the large end face and the small end face are in the horizontal plane.

[0009] As a preferred embodiment, the hemisphere has an insertion channel extending through the large end face within its small end face, which is used to cooperate with the positioning rod to achieve pre-positioning before the space frame is erected.

[0010] As a preferred embodiment, the hemisphere has a limiting groove in the large end face, the limiting groove being connected to the insertion channel for engaging with the stop structure at the end of the positioning rod.

[0011] As a preferred embodiment, both the insertion channel and the limiting groove are polygonal prisms, and their geometric center lines are collinear with the axis of the hemisphere. This effectively prevents the hemisphere from rotating relative to the positioning rod, and the center of gravity of the hemisphere after engaging with the positioning rod remains on the axis.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing hemispheres that can be used independently or in pairs, the node device can not only stably connect purlins inside the space frame, but also make full contact and stably connect with the planar frame at the edge of the space frame using the large end face of the hemisphere and the unfitted studs.

[0014] (2) By opening a plug-in channel structure in the middle of the hemisphere, it can cooperate with the positioning rod to realize the pre-positioning of the space frame construction, which can improve the construction efficiency of the space frame. The structure of the hemisphere is reasonable, so that the two hemispheres can fit perfectly together, and the complete node device formed has high stability and good firmness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first three-dimensional structure of the complete form of the novel grid node device.

[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the complete form of the novel grid node device.

[0017] Figure 3 This is a three-dimensional structural diagram of the limiting component of the novel space frame node device cooperating with the hemisphere.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the limiting component of the novel space frame node device in conjunction with the hemisphere.

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the hemispherical part of the novel grid node device.

[0020] In the diagram: 1. Limiting component; 101. External hexagonal nut; 102. Washer; 2. Hemisphere; 201. Small end face; 202. Inclined surface; 203. Countersunk groove; 204. Through hole; 205. Stud; 206. Internal threaded hole; 207. Insertion channel; 208. Limiting groove; 209. Large end face. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] like Figure 1-5 The novel space frame node device shown includes a hemisphere 2 that can be used alone or in pairs. The hemisphere 2 is the main body of the space frame node device. The hemisphere 2 has a large end face 209 and a small end face 201, and the small end face 201 is parallel to the large end face 209. In fact, the large end face 209 is the tangent at the point where the diameter of the whole circle is the largest. There are at least two inclined surfaces 202 between the large end face 209 and the small end face 201. In this embodiment, the number of inclined surfaces 202 is set to four. These inclined surfaces 202 are equidistantly arranged around the axis of the hemisphere 2, and the small end face 201 is surrounded in the center by these inclined surfaces 202. The hemisphere 2 has an internal threaded hole 206 in the inclined surface 202 for cooperating with the threaded structure at the end of the purlin, thereby fixing multiple purlins together.

[0026] A groove 203 is formed between the inclined surfaces 202 of the hemisphere 2. The inner bottom surface of the groove 203 is parallel to the large end face 209. A through hole 204 is formed in the groove 203 of the hemisphere 2, penetrating the large end face 209. The inner wall of the groove 203 is also arc-shaped. The through hole 204 is located at the center of the inner bottom surface of the groove 203. A stud 205 is also fixedly connected in the large end face 209. The stud 205 of one hemisphere 2 is suitable for passing through the through hole 204 of the other hemisphere 2. The two hemispheres 2 can thus form a complete sphere. In order to make the sphere structure more stable, there are two sets of combinations of groove 203 and through hole 204. The axes of the two through holes 204 are about the hemisphere. The axis of hemisphere 2 is symmetrical, and there are two studs 205. The axes of the two studs 205 are also symmetrical about the axis of hemisphere 2. The axes of the through holes 204 and the studs 205 are parallel to the axis of hemisphere 2. The distance between the axis of the through holes 204 and the axis of hemisphere 2 is the same as the distance between the axis of the studs 205 and the axis of hemisphere 2. The plane containing the axes of the two through holes 204 is perpendicular to the plane containing the axes of the two studs 205. Thus, the two studs 205 on one hemisphere 2 can correspond exactly to the two through holes 204 on the other hemisphere 2, and the two studs 205 on the other hemisphere 2 can also be inserted into the two through holes 204 on the first hemisphere 2.

[0027] After the stud 205 passes through the through hole 204, it is fitted with a limiting component 1 to prevent the stud 205 from sliding out of the through hole 204. The limiting component 1 includes a separate external hexagonal nut 101 and a washer 102. The external hexagonal nut 101 is used to engage with the threaded stud 205, and the washer 102 is used to replace the external hexagonal nut 101 in contact with the hemisphere 2. The washer 102 can suppress the loosening of the external hexagonal nut 101. The inner wall size of the countersunk groove 203 is larger than the outer diameter of the external hexagonal nut 101. The gap between the outer side of the external hexagonal nut 101 and the inner wall of the countersunk groove 203 is used to accommodate tools such as wrenches, which facilitates disassembly and assembly operations.

[0028] The hemisphere 2 has an insertion channel 207 in its small end face 201 that passes through the large end face 209 for the positioning rod to pass through. The hemisphere 2 also has a limiting groove 208 in its large end face 209 that communicates with the insertion channel 207. The limiting groove 208 is used to fit with the stop at the end of the positioning rod. Both the insertion channel 207 and the limiting groove 208 are polygonal prisms, and their geometric center lines are collinear with the axis of the hemisphere 2. The positioning rod body and the stop at its end are also polygonal prisms. After the fit, the hemisphere 2 cannot rotate relative to the positioning rod.

[0029] Working principle: During installation, first, a positioning rod is fixed at the location where the space frame needs to be built. Before positioning, the positioning rod passes through the insertion channel 207 of the hemisphere 2 until the stop at the end of the positioning rod matches the limiting groove 208. The stop at the end of the positioning rod is generally facing downwards, so that the hemisphere 2 can be suspended in mid-air, facilitating the connection of other components. Then, another hemisphere 2 is fastened upwards from the bottom of the first hemisphere 2 and tightened using the external hexagonal nut 101 and washer 102. At this point, a complete space frame node device is formed. The building direction can then be determined, and the corresponding inclined surface 202 is selected. The screws at the ends of the purlins are then tightened. The rod is screwed into the internal threaded hole 206 of the inclined surface 202. A new hemisphere 2 can be installed on the other end of the purlin. Purlins can be connected to the new hemisphere 2 to form a complete three-dimensional mesh structure. Since the number of directions to be extended is not large and the number of purlins to be connected is also small, a single hemisphere 2 can be used instead of two hemispheres 2 forming a complete node device as in the middle of the mesh structure. The exposed screw structure of the single hemisphere 2 can also be fixedly connected to the planar frame of the mesh structure to further ensure the stability of the edge of the mesh structure.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A novel space truss node device, characterized by: Includes a hemisphere (2) for use alone or in pairs, the hemisphere (2) having a large end face (209) and a small end face (201), with at least two inclined surfaces (202) between the large end face (209) and the small end face (201), the hemisphere (2) having an internal threaded hole (206) in the inclined surfaces (202), and the hemisphere (2) having a countersunk groove (203) between the inclined surfaces (202), the hemisphere (2) having... The sinker (203) has a through hole (204) that passes through the large end face (209). A stud (205) is also fixedly connected in the large end face (209). The stud (205) of one hemisphere (2) is adapted to pass through the through hole (204) of the other hemisphere (2). The two hemispheres (2) are adapted to form a complete sphere. After the stud (205) passes through the through hole (204), it is engaged with a limiting member (1).

2. The novel grid node device as described in claim 1, characterized in that: The limiting member (1) includes an external hexagonal nut (101) and a washer (102). The external hexagonal nut (101) is adapted to be threaded into the stud (205), and the washer (102) is adapted to replace the external hexagonal nut (101) in contact with the hemisphere (2).

3. The novel space frame node device as described in claim 2, characterized in that: There are four inclined planes (202), which are equidistantly arranged around the axis of the hemisphere (2), and the small end face (201) is surrounded by the inclined planes (202).

4. The novel space frame node device as described in claim 3, characterized in that: There are two sets of the combination of the sinker (203) and the through hole (204). The axes of the two through holes (204) are symmetrical about the axis of the hemisphere (2). There are also two studs (205). The axes of the two studs (205) are also symmetrical about the axis of the hemisphere (2). The axes of the through holes (204) and the studs (205) are parallel to the axis of the hemisphere (2). The distance between the axis of the through hole (204) and the axis of the hemisphere (2) is the same as the distance between the axis of the stud (205) and the axis of the hemisphere (2). The plane containing the axes of the two through holes (204) is perpendicular to the plane containing the axes of the two studs (205).

5. The novel space frame node device as described in claim 4, characterized in that: The inner wall dimension of the groove (203) is larger than the outer circle diameter of the external hexagonal nut (101), and the small end face (201) is parallel to the large end face (209).

6. The novel grid node device as described in any one of claims 1 to 5, characterized in that: The hemisphere (2) has an insertion channel (207) that passes through the large end face (209) in the small end face (201).

7. The novel space frame node device as described in claim 6, characterized in that: The hemisphere (2) has a limiting groove (208) in the large end face (209), and the limiting groove (208) is connected to the insertion channel (207).

8. The novel space frame node device as described in claim 7, characterized in that: Both the insertion channel (207) and the limiting groove (208) are polygonal prisms, and their geometric center lines are collinear with the axis of the hemisphere (2).

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