A keel structure with an in-groove function

Abstract

The utility model relates to the technical field of building keel frame structure, specifically relates to a kind of keel structure with recessed functional groove, including detachable cooperation cross keel and vertical keel, detachable cooperation is realized between the cross keel and vertical keel by connecting piece, the front end of the cross keel is provided with recessed functional groove along its axis, and the end portion side wall is punched along the axis of recessed functional groove One avoidance groove, the avoidance groove is used for connecting piece guiding insertion until with the side end surface of connecting piece abuts. The utility model under the premise of not increasing the consumption of cross keel material, by the setting of end portion avoidance position and the outer push arrangement of connecting piece, the effective spacing between the force bearing position of connecting piece is significantly expanded, so as to improve the torsional stability of cross keel when bearing edge load.

Description

Technical Field

[0001] This utility model relates to the field of building keel frame structure technology, specifically to a keel structure with a concave functional groove. Background Technology

[0002] In building curtain walls and related structures, horizontal keels are usually connected to vertical keels by special connectors to form a load-bearing frame. Existing horizontal profiles with functional grooves are mostly concave structures. These concave functional grooves occupy space at the ends of the profiles and inside the cavities, thus limiting the placement and outward space of the connectors at the ends of the profiles. This limitation leads to the compression of the available spacing between the positioning / engagement points on the connectors used for load bearing. Consequently, when bearing glass loads or other edge loads, the horizontal keels are more prone to torsional deformation (commonly known as "heading down").

[0003] To mitigate the aforementioned adverse effects, the industry often adopts the method of increasing the longitudinal depth of the transverse keel cross section to achieve a larger spacing between connectors. However, this method significantly increases the amount of profiles used, raises the linear density of components, and leads to an increase in material costs, transportation, and installation costs. Therefore, there is a need to improve the geometric arrangement of the ends and connection areas without changing or increasing the amount of transverse keel material used, in order to expand the available spacing between the load-bearing points of the connectors and improve the overall torsional resistance, while maintaining the operability of on-site post-installation and the commonality of accessories. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a keel structure with a concave functional groove, which can solve the problem that the transverse keel in the existing technology is prone to torsional deformation.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a keel structure with a concave functional groove, including a detachable horizontal keel and a vertical keel. The horizontal keel and the vertical keel are detachably connected by a connector. The front end of the horizontal keel has a concave functional groove along its axis, and the end side wall of the horizontal keel has a relief groove punched along the axis of the concave functional groove. The relief groove is used to guide the connector to be inserted until it abuts against the side end face of the connector.

[0009] Furthermore, the cross-section of the concave functional groove has an inwardly expanding structure.

[0010] Furthermore, the connector includes an insertion part, a support part, and a locking part. The insertion part is a plate-shaped insert, the outer contour of which mates with the inner wall of the concave functional groove. The support part extends along a plane perpendicular to the insertion part and is provided with a through bolt hole. The locking part is bent relative to the support part and its outer end is provided with a force-bearing point that locks with the vertical keel.

[0011] Furthermore, there are at least two force-bearing points, and each force-bearing point is at a different height.

[0012] Furthermore, the front end of the locking part and the front end plane of the bearing part are arranged on the same plane or offset.

[0013] Furthermore, it also includes a backstop plate, which is an integrally formed plate with at least one mounting screw hole along the direction of engagement with the end of the horizontal keel, and the mounting screw hole is fastened to the bolt hole on the bearing part and / or the vertical keel by screws.

[0014] Furthermore, the connector and the cross keel are provided with spot weld reinforcement points at the junction of the bearing part and the insertion part.

[0015] Furthermore, the front end face of the bearing portion and the front end face of the horizontal keel are arranged in a staggered manner.

[0016] Furthermore, the force-bearing point is elastically and movably mounted on the connector.

[0017] Beneficial effects

[0018] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0019] This utility model, without increasing the consumption of transverse keel material, significantly expands the effective distance between the load-bearing positions of the connectors by setting the end avoidance parts and the outward arrangement of the connectors, thereby improving the torsional stability of the transverse keel when bearing edge loads.

[0020] This avoids the practice of increasing the longitudinal depth of the cross-section of large materials to improve the load-bearing spacing, thus achieving the dual goals of lightweighting and cost control, and reducing material, transportation and installation costs;

[0021] The connector design is compatible with various profiles with inward or triangular inward cross sections, achieving the universality of the same connector to adapt to different profiles, reducing development cycle and inventory types, and facilitating on-site parts management;

[0022] The end clearance part and the insert connector are suitable for post-installation construction process. The assembly method can adopt a variety of processes such as temporary holding, tossing adjustment or elastic self-locking to achieve high on-site fault tolerance and assembly efficiency.

[0023] By spot welding or local reinforcement in the load-bearing area, and by arranging reinforcing members and anti-retreat devices where necessary, the long-term stiffness and anti-detachment reliability of the connection area can be improved, meeting the engineering requirements for strength and durability of building components such as curtain walls. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the keel structure in an embodiment of the present utility model;

[0026] Figure 2 This is a side view schematic diagram of one of the concave functional groove structures in the embodiments of this utility model;

[0027] Figure 3 This is a side view schematic diagram of one of the concave functional groove structures in the embodiments of this utility model;

[0028] Figure 4 This is a side view schematic diagram of one of the concave functional groove structures in the embodiments of this utility model;

[0029] Figure 5 This is a side view of the assembly structure of the connector and the cross keel in an embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the assembly structure of the connector and the cross keel in the prior art of this utility model;

[0031] Figure 7 This is a schematic diagram of the assembly structure of the connector and the horizontal keel in Embodiment 2 of this utility model;

[0032] Figure 8 This is a schematic diagram of the assembly structure of the connector and the horizontal keel in Embodiment 3 of this utility model;

[0033] Figure 9 This is a schematic diagram of the assembly structure of the connector and the horizontal keel in Embodiment 4 of this utility model;

[0034] Figure 10 This is a schematic diagram of the connector structure in Embodiment 2 of this utility model;

[0035] Figure 11 This is a schematic diagram of the connector structure in Embodiment 3 of this utility model;

[0036] Figure 12This is a schematic diagram of the connector structure in Embodiment 4 of this utility model;

[0037] Figure 13 This is a schematic diagram of the vertical keel assembly structure in an embodiment of this utility model;

[0038] Figure 14 This is a schematic diagram of the horizontal and vertical keel assembly structure in an embodiment of this utility model;

[0039] Figure 15 This is a schematic diagram of the anti-retraction piece assembly structure in embodiments 2-3 of this utility model;

[0040] Figure 16 This is a schematic diagram of the anti-retraction piece assembly structure in Embodiment 4 of this utility model.

[0041] The labels in the diagram represent:

[0042] 1. Horizontal keel; 10. Vertical keel; 11. Recessed functional groove; 12. Clearance groove; 2. Connector; 20. Spot welded reinforcement point; 2a. Insertion part; 2b. Bearing part; 2c. Locking part; 21. Force-bearing point; 22. Spring; 3. Anti-reverse plate; 31. Mounting screw hole. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] The present invention will be further described below with reference to the embodiments.

[0048] Example 1:

[0049] Please refer to the appendix. Figure 1-16 This solution proposes a keel structure with concave functional grooves. The structure consists of a horizontal keel 1 and a vertical keel 10. In this embodiment, a horizontal keel 1 and vertical keels 10 fixed on both sides are shown. The overall assembly structure is not limited to the number shown in the current embodiment. The number of vertical keels 10 can be increased or decreased according to actual needs.

[0050] As attached Figure 2-4 As shown, the horizontal keel 1 and the vertical keel 10 are detachably connected by the connector 2. The front end of the horizontal keel 1 has a concave functional groove 11 along the axis. The concave functional groove 11 can be a concave type, a triangular concave type or a variant structure. The end side wall of the horizontal keel 1 is provided with a relief groove 12 along the axis of the concave functional groove 11 to accommodate and guide the connector 2.

[0051] The connector 2 consists of an insertion part 2a, a support part 2b, and a locking part 2c. The insertion part 2a is a plate-shaped insert for embedding into the recessed functional groove 11. The insertion part 2a can be equipped with a positioning boss to cooperate with the positioning hole or guide chamfer of the groove. The support part 2b extends along a plane that is basically perpendicular to the insertion part 2a and is provided with a through fastening hole. The locking part 2c is bent relative to the support part 2b to form an overlapping tongue or hook-shaped component. At least two force-bearing points 21 are provided at its outer end to engage with the fixing holes on the vertical keel 10 to bear the force. The force-bearing points 21 adopt a screw structure to cooperate with the nuts pre-installed on the vertical keel 10 and bear the axial load through thread engagement.

[0052] It should be noted that the front end of the locking part 2c and the front end plane of the bearing part 2b are either on the same plane or misaligned. When the front end of the locking part 2c and the front end plane of the bearing part 2b are on the same plane, the cross section of the connector 2 is concave. When misaligned, the front end of the overall concave structure protrudes, and the part of the connector 2 that abuts against the groove of the relief groove 12 is the side end face of the protruding part.

[0053] In addition, the front end face of the bearing part 2b and the front end face of the horizontal keel 1 are staggered. A baffle is provided on the front end face of the horizontal keel 1 and on the upper and lower sides of the groove opening of the concave functional groove 11 to restrict the bearing part 2b from passing through the concave functional groove 11, forming a structure with staggered end faces.

[0054] In this embodiment, there are three force-bearing points 21, and they are all at different heights.

[0055] It also includes a retaining plate 3 for fixing the connector 2 and the vertical keel 10. The retaining plate 3 is an integrally formed plate. At least one mounting screw hole 31 is opened on the retaining plate 3. The through fastening hole on the bearing part 2b is used to align with the mounting screw hole 31 of the retaining plate 3 and is locked by the fastener (screw in this embodiment) of the retaining plate 3 to achieve radial and angular fixation. The retaining plate 3 is generally L-shaped or T-shaped to be fastened to the bearing part 2b and the end of the horizontal keel 1.

[0056] Two mounting screw holes 31 can also be provided. The other mounting screw hole 31 can be assembled with the vertical keel 10 to improve the tightness.

[0057] Spot welding reinforcement or equivalent reinforcement measures can be provided at the junction of the bearing part 2b and the insertion part 2a to improve the local bending and shear resistance.

[0058] The overall assembly process is as follows: first, the vertical keel 10 is positioned and the screws and nuts are pre-installed; then, the horizontal keel 1 with the connector 2 is installed and the pre-installed nut is engaged at the force point 21 to complete the initial positioning; finally, the anti-reverse plate 3 is installed to achieve a rigid connection.

[0059] The design principle of this scheme is to increase the torsional stiffness of the horizontal keel 1 by expanding the distance between the stress points 21 through the arrangement of the avoidance groove 12 and the connector 2 without increasing the amount of horizontal keel material, while taking into account the fault tolerance of on-site assembly.

[0060] Example 2:

[0061] This embodiment is based on Embodiment 1. Based on Embodiment 1, a rigid locking method is used to achieve locking between the horizontal and vertical keels.

[0062] See attached document Figure 7 In this embodiment, the end of the horizontal keel 1 is machined with a concave functional groove 11 and a clearance groove 12 along the axis. The connector 2 is a stamped and bent integral part. The insertion part 2a is embedded in the concave functional groove 11 and uses the positioning boss and the positioning hole of the groove to achieve radial and angular positioning. The locking part 2c is provided with a force point 21 to bear the force with the screw on the vertical keel 10.

[0063] It should be noted that the stress point 21 in this embodiment is a three-arc design for the screw to pass through in the vertical keel 10.

[0064] During the manufacturing stage, the connector 2 is bent to form a reinforcing rib to improve the rigidity of the load-bearing part 2b, and the rear end of the insertion part 2a is bent to form the outer contour of the adapter groove 11 to ensure self-guidance when sliding in.

[0065] The assembly process is as follows: First, the adjacent vertical keel 10 is positioned and a continuous threaded rod and matching nut are installed at its mounting hole. Then, the connecting piece 2 is inserted into the clearance groove 12 on the end of the horizontal keel 1, which is pre-processed in the workshop. The connecting piece 2 is fixed to the end of the horizontal keel 1 with temporary fasteners (usually screws) to prevent displacement during transportation or handling. Next, spot welding reinforcement is carried out at the junction of the bearing part 2b and the insertion part 2a. The spot welding arrangement should be distributed on both sides of the bearing part 2b along the force transmission path to share the shear load.

[0066] Then slide the horizontal keel 1 into the position close to the vertical keel 10 and rotate the horizontal keel 1 so that the force point 21 is engaged with the pre-installed nut on the vertical keel 10 and forms a load-bearing contact. Then tighten the through fasteners (usually screws) in sequence. Finally, install and tighten the anti-reverse plate 3 so that the lap groove of the anti-reverse plate 3 and the bearing part 2b can reliably engage to bear the radial pull-out and part of the shear load.

[0067] In this embodiment, the spacing between the stress points 21 is expanded by the avoidance groove 12 and the outwardly arranged connecting piece 2, thereby significantly improving the torsional stiffness of the horizontal keel 1. The spot welded reinforcement 23 and the anti-reverse piece 3 ensure the stiffness and anti-detachment reliability during long-term use.

[0068] Example 3:

[0069] This embodiment is based on Embodiment 1 and uses an adjustable method to fix the horizontal and vertical keels.

[0070] See attached document Figure 8 This embodiment is structurally consistent with Embodiment 1, but in terms of assembly process, it allows the connector 2 to have limited degrees of freedom of movement within the cavity of the horizontal keel 1 to accommodate minor deviations in the position of the vertical keel 10 on site.

[0071] See attached document Figure 11 First, position and pre-install the continuous threaded rod and nut on the vertical keel 10. Then, slide the horizontal keel 1 with a temporary retainer (usually a screw, but the screw is not tightened at this time) into the near position. Then, perform a turning operation on the end of the horizontal keel 1 to make the connector 2 move slightly in the groove until the force point 21 is inserted into the mounting hole of the vertical keel 10 and aligned with the nut. After the force point 21 is positioned, tighten the through fasteners (usually screws) in sequence to the specified torque and install the anti-reverse plate 3 to complete the final locking.

[0072] This assembly method significantly improves the tolerance adaptability of on-site assembly, reduces rework rate, and maintains the structural performance advantages brought about by increasing the spacing between stress points.

[0073] Example 4:

[0074] See attached document Figure 9 This embodiment is based on Embodiment 1. The difference from Embodiment 1 is that an elastic structure is set at the stress point 21, and an elastic self-locking method is used to fix the horizontal and vertical keels.

[0075] In this embodiment, an elastic self-resetting mechanism is integrated at the force point 21 of the connector 2 (in this embodiment, a spring 22 is used as the elastic structure), so that the force point 21 can be compressed during the sliding and positioning process and pop out at the moment of positioning to achieve self-locking.

[0076] See attached document Figure 14 Specifically, the outer end of the locking part 2c of the connector 2 is equipped with a force point 21. The force point 21 protrudes from the outer end of the connector 2. In this embodiment, the connector 2 is a concave structure. The force point 21 passes through its concave part. A spring 22 is sleeved inside the concave surface of the connector 2 at the force point 21. Normally, it is in a pre-compressed or contracted state to shorten the exposed length of the force point. When sliding in, the spring 22 is compressed by the retaining device to keep the force point contracted. After the horizontal keel 1 slides into the target position, it releases the spring 22 to restore it, thereby making the force point 21 spring into the mounting hole of the vertical keel 10 and achieve initial engagement with the pre-installed nut.

[0077] The assembly sequence is as follows: First, position the vertical keel 10 and pre-install the screws and nuts. Then, insert the connector 2 into the recessed functional groove 11 of the horizontal keel 1 and temporarily hold it in place or reinforce it with spot welding. Next, during the sliding process, compress the spring 22 on the connector manually or with tools. After the horizontal keel 1 reaches the target position, release the spring 22, causing it to spring into the mounting hole and complete the initial engagement. Then, complete the final tightening of the through fasteners (usually screws). Finally, install the anti-reverse plate 3 to achieve rigid locking.

[0078] In this embodiment, the elastic self-locking installation method facilitates rapid and frequent on-site assembly, and to a certain extent improves the vibration resistance and loosening resistance of the joint through elastic redundancy.

[0079] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A keel structure with a concave functional groove, comprising a detachably fitted horizontal keel (1) and a vertical keel (10), wherein the horizontal keel (1) and the vertical keel (10) are detachably fitted together by a connector (2), characterized in that, The front end of the horizontal keel (1) is provided with a concave functional groove (11) along its axis, and a clearance groove (12) is punched along the axis of the concave functional groove (11) on its end side wall. The clearance groove (12) is used to guide the connector (2) to be inserted until it abuts against the side end face of the connector (2).

2. The keel structure with a concave functional groove according to claim 1, characterized in that, The cross-section of the concave functional groove (11) has an inwardly expanding structure.

3. A keel structure with a concave functional groove according to claim 1, characterized in that, The connector (2) includes: Insertion part (2a), the insertion part (2a) is a plate-shaped insert, the outer contour of which fits with the inner wall of the concave functional groove (11); The support portion (2b) extends along a plane perpendicular to the insertion portion (2a) and is provided with through bolt holes; The locking part (2c) is formed by bending relative to the bearing part (2b) and its outer end is provided with a force point (21) that locks and engages with the vertical keel (10).

4. A keel structure with a concave functional groove according to claim 3, characterized in that, There are at least two force-bearing points (21), and each force-bearing point (21) is at a different height.

5. A keel structure with a concave functional groove according to claim 3, characterized in that, The front end of the locking part (2c) and the front end plane of the supporting part (2b) are either on the same plane or staggered.

6. A keel structure with a concave functional groove according to claim 3, characterized in that, It also includes a backstop plate (3), which is an integrally formed plate with at least one mounting screw hole (31) along the direction of engagement with the end of the horizontal keel (1), and the mounting screw hole (31) is fastened to the bolt hole on the bearing part (2b) and / or the vertical keel (10) by screws.

7. A keel structure with a concave functional groove according to claim 3, characterized in that, The connector (2) and the cross keel (1) are provided with spot welded reinforcement points (20) at the junction of the bearing part (2b) and the insertion part (2a).

8. A keel structure with a concave functional groove according to claim 3, characterized in that, The front end face of the bearing part (2b) and the front end face of the cross keel (1) are arranged in a staggered manner.

9. A keel structure with a concave functional groove according to claim 3, characterized in that, The force-bearing point (21) is elastically mounted on the connector (2).

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