Net-shaped steel structure chord member with adjustable length

Abstract

The utility model relates to a length-adjustable reticular steel structure chord member which comprises a first chord member, a second chord member and a threaded connection rod, one end of the first chord member is provided with a first threaded connection groove, one end of the second chord member is provided with a second threaded connection groove, and the threaded connection rod is provided with a plurality of first connection holes which are through in the radial direction; a plurality of second connecting holes penetrating through the first chord member in the radial direction are formed in the first threaded connecting groove; a plurality of third connecting holes penetrating through the second chord member in the radial direction are formed in the second threaded connecting groove; the two ends of the threaded connection rod can be in threaded connection in the first threaded connection groove and the second threaded connection groove respectively, and the threaded connection rod, the first chord member and the second chord member are coaxially arranged; when the end face of one end of the first chord member abuts against the end face of one end of the second chord member, the multiple first connecting holes correspond to the multiple second connecting holes and the multiple third connecting holes in a one-to-one mode, and the first connecting holes and the second connecting holes which are correspondingly arranged and the first connecting holes and the third connecting holes which are correspondingly arranged are connected and locked through bolts.

Description

Technical Field

[0001] The utility model relates to the technical field related to building construction, in particular to a mesh steel structure chord rod with adjustable length. Background Art

[0002] In the field of construction, there are many styles and shapes of steel structures, and the process is also relatively complex. Steel mesh structure is one of them. Its environmental protection and energy saving, short construction period, flexibility and diversity, high strength and light weight are widely used in various fields. As the skeleton of the building, the steel structure grid also plays an important role in improving the stability of the building, saving space, promoting architectural innovation, and accelerating the progress of the project. Due to its unique professional nature, it also brings great challenges to the construction. How to control its construction process and installation quality while ensuring construction safety is one of the key points in the construction. The general steel mesh structure is mainly composed of important components such as the upper chord, the lower chord, and the bolt ball. A bolt ball connects multiple chords. If the length of the chord at one position is not appropriate, and the length of the chord cannot be adjusted, the connection between the chord and the bolt ball is not standardized when the chord is installed, which affects the structure of the entire bolt ball. Utility Model Content

[0003] In order to solve one or more technical problems existing in the prior art, the utility model provides a mesh steel structure chord rod with adjustable length.

[0004] The utility model solves the above technical problems with the following technical solutions: a mesh steel structure chord rod with adjustable length, comprising a first chord rod, a second chord rod and a threaded connecting rod, one end of the first chord rod has a first threaded connecting groove, one end of the second chord rod has a second threaded connecting groove, an outer side wall of the threaded connecting rod is provided with an external thread structure, the threaded connecting rod is provided with a plurality of radially penetrating first connecting holes, and the plurality of first connecting holes are arranged at equal intervals along the axial direction of the threaded connecting rod; the first threaded connecting groove is provided with a plurality of radially penetrating second connecting holes of the first chord rod, and the plurality of second connecting holes are arranged at equal intervals along the axial direction of the first chord rod. ; A plurality of third connecting holes radially penetrating the second chord rod are provided at the second threaded connecting groove, and the plurality of third connecting holes are arranged at equal intervals along the axial direction of the second chord rod; the two ends of the threaded connecting rod can be threadedly connected in the first threaded connecting groove and the second threaded connecting groove respectively, and the threaded connecting rod, the first chord rod and the second chord rod are coaxially arranged; when the end face of one end of the first chord rod abuts against the end face of one end of the second chord rod, the plurality of first connecting holes are respectively arranged one-to-one with the plurality of second connecting holes and the plurality of third connecting holes, and the correspondingly arranged first connecting holes and second connecting holes, and the correspondingly arranged first connecting holes and third connecting holes are all connected and locked by bolts.

[0005] The beneficial effects of the utility model are as follows: the length of the mesh steel structure chord of the utility model can be adjusted without affecting the stress of the chord, which can improve the mesh structure within the range of the bolt ball node caused by the inability to install the chord due to the insufficient length of the chord and the connection between the existing chord and the bolt ball.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the external thread structures on the threaded connecting rods are all thread structures with the same rotation direction.

[0008] Furthermore, the external thread structure on the threaded connecting rod includes two sections of thread structures with opposite rotation directions, and the two sections of thread structures with opposite rotation directions are threadedly connected to the first threaded connection groove and the second threaded connection groove respectively.

[0009] Furthermore, the lengths of the two sections of thread structures with opposite rotation directions are the same.

[0010] Furthermore, one end surface of the first chord rod and one end surface of the second chord rod are both planar structures.

[0011] The beneficial effect of adopting the above further solution is that the planar structure is adopted to facilitate the docking of the first chord rod and the second chord rod.

[0012] Furthermore, the planar structure is perpendicular to the axes of the first chord and the second chord.

[0013] Furthermore, a pad and a nut are respectively provided at both ends of the bolt, the pad abuts against the outer side wall of the first chord rod or the second chord rod, and the nut abuts against the pad.

[0014] The beneficial effect of adopting the above further solution is that by providing a pad and a nut, it is convenient to lock and fix the threaded connecting rod and the chord rod.

[0015] Furthermore, a pad and two nuts are respectively provided at both ends of the bolt.

[0016] Furthermore, the pad is a rubber pad.

[0017] Furthermore, it also includes a rubber ring, the inner diameter of the rubber ring is smaller than the outer diameter of the threaded connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the mesh steel structure chord of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the threaded connecting rod of the utility model;

[0020] Figure 3It is a structural schematic diagram of the bolt of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. First chord rod; 2. Second chord rod; 3. Threaded connecting rod; 4. Bolt; 5. Washer plate; 6. Nut. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] like Figure 1 to Figure 3 As shown, a mesh steel structure chord with adjustable length in this embodiment includes a first chord 1, a second chord 2 and a threaded connecting rod 3, one end of the first chord 1 has a first threaded connecting groove, one end of the second chord 2 has a second threaded connecting groove, an outer side wall of the threaded connecting rod 3 is provided with an external thread structure, the threaded connecting rod 3 is provided with a plurality of radially penetrating first connecting holes, and the plurality of first connecting holes are arranged at equal intervals along the axial direction of the threaded connecting rod 3; the first threaded connecting groove is provided with a plurality of second connecting holes that radially penetrate the first chord 1, and the plurality of second connecting holes are arranged at equal intervals along the axial direction of the first chord 1; the second thread A plurality of third connection holes radially penetrating the second chord 2 are provided at the threaded connection groove, and the plurality of third connection holes are arranged at equal intervals along the axial direction of the second chord 2; the two ends of the threaded connection rod 3 can be threadedly connected in the first threaded connection groove and the second threaded connection groove respectively, and the threaded connection rod 3, the first chord 1, and the second chord 2 are coaxially arranged; when the end face of one end of the first chord 1 abuts against the end face of one end of the second chord 2, the plurality of first connection holes are respectively arranged one-to-one with the plurality of second connection holes and the plurality of third connection holes, and the correspondingly arranged first connection holes and the second connection holes, and the correspondingly arranged first connection holes and the third connection holes are all connected and locked by bolts 4.

[0025] An optional solution of this embodiment is that the external thread structures on the threaded connecting rod 3 are all thread structures with the same rotation direction.

[0026] Another optional solution of this embodiment is that the external thread structure on the thread connection rod 3 includes two sections of thread structures with opposite rotation directions, and the two sections of thread structures with opposite rotation directions are threadedly connected to the first thread connection groove and the second thread connection groove respectively.

[0027] Preferably, the two sections of thread structures with opposite rotation directions have the same length.

[0028] Preferably, one end surface of the first chord bar 1 and one end surface of the second chord bar 2 are both planar structures. The planar structure facilitates the docking of the first chord bar and the second chord bar.

[0029] A preferred solution of this embodiment is that the planar structure is perpendicular to the axes of the first chord 1 and the second chord 2 .

[0030] like Figure 3 As shown, a pad 5 and a nut 6 are respectively provided at both ends of the bolt 4 of this embodiment, the pad 5 abuts against the outer wall of the first chord rod 1 or the second chord rod 2, and the nut 6 abuts against the pad 5. By providing the pad and the nut, it is convenient to lock and fix the threaded connecting rod and the chord rod.

[0031] Preferably, Figure 3 As shown, a backing plate 5 and two nuts 6 are respectively provided at both ends of the bolt 4.

[0032] Specifically, the pad 5 is a rubber pad.

[0033] A preferred solution of this embodiment is that the mesh steel structure chord rod further includes a rubber ring, and the inner diameter of the rubber ring is smaller than the outer diameter of the threaded connecting rod 3.

[0034] When the mesh steel structure chord of this embodiment is in use, the distance between each two bolts is the length of each chord adjustment. Setting multiple bolts can also strengthen the connection between the two chords. When the first chord and the second chord are installed, if the length is insufficient, all the bolts are unscrewed, and then the chord on one side is screwed out from the threaded connecting rod by twisting the chord, and the thread of the threaded connecting rod is also exposed. After adjusting the required length, the first connecting hole, the second connecting hole and the third connecting hole can be realigned and tightened again. The exposed thread can be painted with a layer of anti-corrosion and anti-rust paint, or it can be wrapped with a rubber ring to enhance the sealing performance. Since the distance between each two adjacent bolts is equal, the length of the chord adjustment should meet the modulus of the distance between the two adjacent bolts as much as possible. At the same time, it must be ensured that the first chord and the threaded connecting rod, and the second chord and the threaded connecting rod are connected by bolts to ensure the connection quality of the chord.

[0035] The mesh steel structure chord of this embodiment can be adjusted in length without affecting the stress of the chord, which can improve the existing connection between the chord and the bolt ball, which is caused by insufficient chord length, resulting in the inability to install the chord and affecting the mesh structure within the bolt ball node range. When the chord is connected to the bolt ball, if the chord length is appropriate, no processing is required and it can be directly connected to the bolt ball, thereby improving installation efficiency. When the chord is connected to the bolt ball, if the chord length is not appropriate, the threaded connecting rod can be used to adjust the length, which neither wastes materials nor affects the construction quality, thus saving construction costs.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mesh steel structure chord with adjustable length, characterized in that: The invention comprises a first chord rod, a second chord rod and a threaded connecting rod, wherein one end of the first chord rod has a first threaded connecting groove, one end of the second chord rod has a second threaded connecting groove, an outer side wall of the threaded connecting rod is provided with an external thread structure, the threaded connecting rod is provided with a plurality of radially penetrating first connecting holes, and the plurality of first connecting holes are arranged at equal intervals along the axial direction of the threaded connecting rod; the first threaded connecting groove is provided with a plurality of second connecting holes radially penetrating the first chord rod, and the plurality of second connecting holes are arranged at equal intervals along the axial direction of the first chord rod; the second threaded connecting groove is provided with a plurality of radially penetrating The third connecting hole of the second chord rod, multiple third connecting holes are arranged at equal intervals along the axial direction of the second chord rod; the two ends of the threaded connecting rod can be threadedly connected in the first threaded connecting groove and the second threaded connecting groove respectively, and the threaded connecting rod, the first chord rod and the second chord rod are coaxially arranged; when the end face of one end of the first chord rod abuts against the end face of one end of the second chord rod, the multiple first connecting holes are respectively arranged one by one with the multiple second connecting holes and the multiple third connecting holes, and the correspondingly arranged first connecting holes and second connecting holes, and the correspondingly arranged first connecting holes and third connecting holes are all locked by bolt connection.

2. The length-adjustable mesh steel structure chord according to claim 1, characterized in that: The external thread structures on the threaded connecting rods are all thread structures with the same rotation direction.

3. The length-adjustable mesh steel structure chord according to claim 1, characterized in that: The external thread structure on the thread connection rod includes two sections of thread structures with opposite rotation directions, and the two sections of thread structures with opposite rotation directions are threadedly connected to the first thread connection groove and the second thread connection groove respectively.

4. The length-adjustable mesh steel structure chord according to claim 3, characterized in that: The lengths of the two threads with opposite rotation directions are the same.

5. The length-adjustable mesh steel structure chord according to claim 1, characterized in that: One end surface of the first chord and one end surface of the second chord are both planar structures.

6. The length-adjustable mesh steel structure chord according to claim 5, characterized in that: The planar structure is perpendicular to the axes of the first chord and the second chord.

7. The length-adjustable mesh steel structure chord according to claim 1, characterized in that: A backing plate and a nut are respectively provided at both ends of the bolt, the backing plate abuts against the outer side wall of the first chord rod or the second chord rod, and the nut abuts against the backing plate.

8. The length-adjustable mesh steel structure chord according to claim 7, characterized in that: A backing plate and two nuts are respectively provided at both ends of the bolt.

9. The length-adjustable mesh steel structure chord according to claim 7, characterized in that: The pad is a rubber pad.

10. The length-adjustable mesh steel structure chord according to claim 1, characterized in that: It also includes a rubber ring, the inner diameter of which is smaller than the outer diameter of the threaded connecting rod.

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