Universal corner connecting assembly for foundation pit steel enclosing purlin and foundation pit steel enclosing purlin
By designing the universal angle connection assembly of the foundation pit steel purlin, and using the rotating shaft and end bolt connection components, the problem of the inability to generalize the corner connections in the prior art is solved, and the versatility of adapting to various angle angles and economic and environmental benefits of recycling are achieved.
Patent Information
- Application Number
- CN202420549875.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing foundation pit steel composite purlin mid-turn angle connections cannot be universal, resulting in each corner needing to be made separately, which is expensive and cannot be recycled and reused after scrapping, resulting in poor economic and environmental benefits.
A general-purse angle connection assembly of foundation pit steel purlins is designed, including the first and second purlin beam connecting elements rotatably connected by a rotary shaft, which can adapt to different angle angles and connect the steel purlin beams through end bolts to achieve convenient installation and disassembly and recycling.
It realizes the versatility of the corners of the foundation pit, adapts to various angles, reduces production costs, and can be recycled and reused, improving economic and environmental benefits.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of foundation pit enclosure, and in particular to a universal corner connection component for foundation pit steel enclosure purlins and the foundation pit steel enclosure purlins. Background Art
[0002] In order to ensure the safety of underground structures and the surrounding environment of foundation pits, it is necessary to adopt support, reinforcement and other protective measures on the side walls and surrounding areas of the foundation pit. The current foundation pit support system usually includes a purlin located inside the foundation pit retaining piles. The purlin includes cast-in-place reinforced concrete purlin beams and steel composite purlins. Among them, the steel composite purlin is formed by splicing and combining prefabricated steel purlin beams. It is easy to construct and efficient, and is widely used.
[0003] The steel composite purlins currently used in foundation pits have the following problems in actual construction. Since there are corners in the foundation pit, the corresponding steel composite purlins also have corners. Therefore, the two adjacent steel purlin beams at the corners of the foundation pit need to be connected through corner connectors. Since the corner angles of the corners of the foundation pit vary in size, the shapes of the corner connectors are varied, and it is impossible to make standard universal parts such as squares or rectangles. It is necessary to customize specific corner connectors (non-standard parts) according to the actual angle of the corner of the foundation pit. Corner connectors cannot be universal, which makes the current corner connectors unable to be recycled and reused, resulting in the scrapping of corner connectors. At present, the corner connectors in the foundation pit have high production costs because each corner needs to be made separately, and the total waste after scrapping is large, and the economic and environmental benefits are not good. Utility Model Content
[0004] The purpose of the utility model is to overcome the problem that the corner connectors used in the foundation pit steel composite purlins in the prior art have poor versatility and cannot be recycled, resulting in poor economic and environmental benefits, and to provide a universal corner connection component for foundation pit steel purlins and foundation pit steel purlins which have good versatility, can be adapted to various different corner angles of foundation pit corners, and can be recycled.
[0005] The technical solution of the utility model is:
[0006] A universal corner connection assembly for foundation pit steel purlins, comprising:
[0007] First perimeter purlin beam connecting element;
[0008] A second purlin beam connecting element, wherein the first purlin beam connecting element and the second purlin beam connecting element are rotatably connected via a rotating shaft;
[0009] The end of the first purlin beam connection element is provided with a first connection end plate, and the first connection end plate is provided with a first end plate connection hole, and the end of the second purlin beam connection element is provided with a second connection end plate, and the second connection end plate is provided with a second end plate connection hole. The specific use of the universal corner connection assembly of steel purlins for foundation pits in this scheme is as follows: two adjacent steel purlin beams located at the corner of the foundation pit can be connected by the universal corner connection assembly of steel purlins for foundation pits, wherein the first connection end plate of the first purlin beam connection element is connected to one end of a steel purlin beam by an end bolt, and the second connection end plate of the second purlin beam connection element is connected to one end of another steel purlin beam by an end bolt, thereby connecting the two adjacent steel purlin beams at the corner of the foundation pit into one body by the universal corner connection assembly of steel purlins for foundation pits. At the same time, since the first purlin beam connecting element and the second purlin beam connecting element are rotatably connected via a rotating shaft, they can be adapted to various corner angles of the foundation pit, have good versatility, and can be recycled and reused.
[0010] Preferably, the rotating shaft comprises an inner sleeve and an outer sleeve coaxially distributed, the inner sleeve is inserted in the outer sleeve, one of the inner sleeve and the outer sleeve is fixedly connected to the first surrounding purlin beam connecting element, and the other sleeve is fixedly connected to the second surrounding purlin beam connecting element. In this way, it is ensured that the first surrounding purlin beam connecting element and the second surrounding purlin beam connecting element can rotate stably and smoothly.
[0011] Preferably, the first purlin beam connection element includes a top plate and a bottom plate that are parallel to each other; the second purlin beam connection element includes a top plate and a bottom plate that are parallel to each other, the top plate of the second purlin beam connection element is parallel to the top plate of the first purlin beam connection element, and the rotation axis is perpendicular to the top plate and connects the top plate and the bottom plate of the first purlin beam connection element and the second purlin beam connection element. In this way, the actual manufacturing of the first purlin beam connection element and the second purlin beam connection element is facilitated.
[0012] Preferably, the rotating shaft comprises an inner sleeve and an outer sleeve coaxially distributed, the rotating shaft is perpendicular to the top plate of the first surrounding purlin beam connecting element, one of the inner sleeve and the outer sleeve connects the top plate and the bottom plate of the first surrounding purlin beam connecting element, and the other sleeve connects the top plate and the bottom plate of the second surrounding purlin beam connecting element. In this way, it is ensured that the first surrounding purlin beam connecting element and the second surrounding purlin beam connecting element can rotate stably and smoothly.
[0013] Preferably, the inner sleeve is fixedly connected to the top plate and the bottom plate of the first purlin beam connection element, the outer sleeve is fixedly connected to the top plate and the bottom plate of the second purlin beam connection element, the outer sleeve is located between the top plate and the bottom plate of the first purlin beam connection element, and the top plate and the bottom plate of the second purlin beam connection element are also located between the top plate and the bottom plate of the first purlin beam connection element. In this way, it is ensured that the first purlin beam connection element and the second purlin beam connection element can rotate stably and smoothly.
[0014] Preferably, it also includes connecting bolts, and the top plate and / or bottom plate of the first purlin beam connecting element are provided with arc holes extending along the circumference of the rotating shaft, and the top plate and / or bottom plate of the second purlin beam connecting element are provided with arc holes extending along the circumference of the rotating shaft. In this way, after the two adjacent steel purlin beams at the corner of the foundation pit are connected as a whole through the universal corner connection assembly of the foundation pit steel purlin, the top plates of the first purlin beam connecting element and the second purlin beam connecting element can be connected together by connecting bolts passing through the arc holes; the bottom plates of the first purlin beam connecting element and the second purlin beam connecting element can be connected together by connecting bolts passing through the arc holes; thereby locking the relative position between the first purlin beam connecting element and the second purlin beam connecting element.
[0015] Preferably, the first purlin beam connection element further includes a side plate connecting the top plate and the bottom plate, and the second purlin beam connection element further includes a side plate connecting the top plate and the bottom plate. In this way, the structural stability of the first purlin beam connection element and the second purlin beam connection element can be improved.
[0016] Preferably, a plurality of long holes are provided on the side plate. Thus, when the steel purlin is distributed in multiple layers from outside to inside, the side plates of the first purlin beam connecting element and the second purlin beam connecting element can be connected to the steel purlin beam by bolts passing through the long holes.
[0017] Preferably, the first purlin beam connection element further includes an inner connection element connecting the top plate and the bottom plate, and the inner connection element is located between the top plate and the bottom plate of the first purlin beam connection element; the second purlin beam connection element further includes an inner connection element connecting the top plate and the bottom plate, and the inner connection element is located between the top plate and the bottom plate of the second purlin beam connection element. In this way, the structural stability of the first purlin beam connection element and the second purlin beam connection element can be improved.
[0018] A foundation pit steel purlin includes a plurality of steel purlin beams and a universal corner connection assembly for foundation pit steel purlins. Two adjacent steel purlin beams located at the corner of the foundation pit are connected by the universal corner connection assembly for the foundation pit steel purlins, wherein a first connection end plate of a first purlin beam connection element is connected to one end of a steel purlin beam by an end bolt, and a second connection end plate of a second purlin beam connection element is connected to one end of another steel purlin beam by an end bolt. Since the first purlin beam connection element and the second purlin beam connection element are rotatably connected by a rotating shaft, they can be applied to various different corner angles at the corner of the foundation pit, and have good versatility. The first purlin beam connection element and the second purlin beam connection element are both connected to the steel purlin beams by end bolts, so they are easy to install and disassemble and can be recycled.
[0019] The beneficial effect of the utility model is that two adjacent steel purlin beams located at the corner of the foundation pit can be connected by a universal corner connection assembly of steel purlin beams for foundation pits, wherein the first connection end plate of the first purlin beam connection element is connected to one end of a steel purlin beam by an end bolt, and the second connection end plate of the second purlin beam connection element is connected to one end of another steel purlin beam by an end bolt, so that the two adjacent steel purlin beams at the corner of the foundation pit are connected as a whole by the universal corner connection assembly of steel purlin beams for foundation pits. At the same time, since the first purlin beam connection element and the second purlin beam connection element are rotatably connected by a rotating shaft, they can be adapted to various different corner angles of the corner of the foundation pit, have good versatility, and can be recycled and reused. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of a universal corner connection component of a foundation pit steel perimeter purlin in a specific embodiment of the utility model from a certain perspective.
[0021] Figure 2 It is a three-dimensional structural schematic diagram from another perspective of a universal corner connection component of a foundation pit steel perimeter purlin according to a specific embodiment of the utility model.
[0022] Figure 3 It is a top view of a foundation pit steel perimeter purlin of specific embodiment 2 of the utility model.
[0023] In the figure:
[0024] First purlin connecting element 1, first connecting end plate 1.0, first end plate connecting hole 1.1, top plate 1.2, bottom plate 1.3, inner connecting element 1.4, side plate 1.5, long strip hole 1.6;
[0025] Second purlin connecting element 2, second connecting end plate 2.0, second end plate connecting hole 2.1;
[0026] Rotating shaft 3, inner sleeve 3.1, outer sleeve 3.2;
[0027] Arc hole 4;
[0028] Steel purlin beam 5. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:
[0030] Specific embodiment 1, as Figure 1 , Figure 2As shown, a universal corner connection assembly for foundation pit steel perimeter purlins includes a first perimeter purlin beam connection element 1 and a second perimeter purlin beam connection element 2. The first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are rotatably connected via a rotating shaft 3. A first connection end plate 1.0 is provided at the end of the first perimeter purlin beam connection element 1, and a first end plate connection hole 1.1 is provided on the first connection end plate 1.0. A second connection end plate 2.0 is provided at the end of the second perimeter purlin beam connection element 2, and a second end plate connection hole 2.1 is provided on the second connection end plate 2.0.
[0031] The specific use of the universal corner connection assembly of the foundation pit steel perimeter purlin of this embodiment is as follows: two adjacent steel perimeter purlin beams 5 located at the corner of the foundation pit can be connected by the universal corner connection assembly of the foundation pit steel perimeter purlin, wherein the first connection end plate 1.0 of the first perimeter purlin beam connection element 1 is connected to one end of a steel perimeter purlin beam 5 by an end bolt, and the second connection end plate 2.0 of the second perimeter purlin beam connection element 2 is connected to one end of another steel perimeter purlin beam 5 by an end bolt, so that the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit are connected as a whole by the universal corner connection assembly of the foundation pit steel perimeter purlin. At the same time, since the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are rotatably connected by the rotating shaft 3, they can be adapted to various different corner angles of the corner of the foundation pit, have good versatility, and can be recycled and reused.
[0032] Specific embodiment 2, as Figure 1 , Figure 2 As shown, a universal corner connection assembly for foundation pit steel perimeter purlins includes a first perimeter purlin beam connection element 1 and a second perimeter purlin beam connection element 2. The first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are rotationally connected via a rotating shaft 3. Specifically, the rotating shaft 3 includes an inner sleeve 3.1 and an outer sleeve 3.2 that are coaxially distributed, and the inner sleeve 3.1 is inserted into the outer sleeve 3.2. One of the inner sleeve 3.1 and the outer sleeve 3.2 is fixedly connected to the first perimeter purlin beam connection element 1, and the other sleeve is fixedly connected to the second perimeter purlin beam connection element 2. A first connection end plate 1.0 is provided at the end of the first perimeter purlin beam connection element 1, and a first end plate connection hole 1.1 is provided on the first connection end plate 1.0. A second connection end plate 2.0 is provided at the end of the second perimeter purlin beam connection element 2, and a second end plate connection hole 2.1 is provided on the second connection end plate 2.0.
[0033] The specific use of the universal corner connection assembly of the foundation pit steel perimeter purlin of this embodiment is as follows: two adjacent steel perimeter purlin beams 5 located at the corner of the foundation pit can be connected by the universal corner connection assembly of the foundation pit steel perimeter purlin, wherein the first connection end plate 1.0 of the first perimeter purlin beam connection element 1 is connected to one end of a steel perimeter purlin beam 5 by an end bolt, and the second connection end plate 2.0 of the second perimeter purlin beam connection element 2 is connected to one end of another steel perimeter purlin beam 5 by an end bolt, so that the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit are connected as a whole by the universal corner connection assembly of the foundation pit steel perimeter purlin. At the same time, since the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are rotatably connected by the rotating shaft 3, they can be adapted to various different corner angles of the corner of the foundation pit, have good versatility, and can be recycled and reused.
[0034] Specifically, Figure 1 , Figure 2 As shown, the first connection end plate 1.0 is parallel to the rotation axis 3. The second connection end plate 2.0 is parallel to the rotation axis 3. The first end plate connection hole 1.1 passes through the first connection end plate 1.0, and the first end plate connection hole 1.1 is multiple. The second end plate connection hole 2.1 passes through the second connection end plate 2.0, and the second end plate connection hole 2.1 is multiple.
[0035] Further, such as Figure 1 , Figure 2 As shown, the first purlin beam connection element 1 includes a top plate 1.2 and a bottom plate 1.3 which are parallel to each other. The second purlin beam connection element 2 includes a top plate and a bottom plate which are parallel to each other. The top plate of the second purlin beam connection element 2 is parallel to the top plate of the first purlin beam connection element 1. The first connecting end plate 1.0 connects the top plate and the bottom plate on the first purlin beam connection element 1, and the first connecting end plate 1.0 is perpendicular to the top plate on the first purlin beam connection element 1. The second connecting end plate 2.0 connects the top plate and the bottom plate on the second purlin beam connection element 2, and the second connecting end plate 2.0 is perpendicular to the top plate on the second purlin beam connection element 2.
[0036] The rotating shaft 3 is perpendicular to the top plate of the first purlin beam connecting element 1. The rotating shaft 3 connects the top plate and the bottom plate of the first purlin beam connecting element 1 and the second purlin beam connecting element 2. Specifically, one of the inner sleeve 3.1 and the outer sleeve 3.2 connects the top plate and the bottom plate of the first purlin beam connecting element 1; the other sleeve connects the top plate and the bottom plate of the second purlin beam connecting element 2. In this embodiment, the inner sleeve 3.1 fixedly connects the top plate and the bottom plate of the first purlin beam connecting element 1. The outer sleeve 3.2 fixedly connects the top plate and the bottom plate of the second purlin beam connecting element 2. The outer sleeve 3.2 is located between the top plate and the bottom plate of the first purlin beam connecting element 1, and the top plate and the bottom plate of the second purlin beam connecting element 2 are also located between the top plate and the bottom plate of the first purlin beam connecting element 1. In this way, the first purlin beam connecting element 1 and the second purlin beam connecting element 2 can rotate stably and smoothly through the rotating shaft 3 .
[0037] Further, such as Figure 1 , Figure 2 As shown, the universal corner connection assembly for foundation pit steel perimeter purlins also includes a plurality of connection bolts. The top plate and / or bottom plate of the first perimeter purlin beam connection element 1 are provided with arc holes 4 extending circumferentially along the rotation axis 3. In this embodiment, the top plate and bottom plate of the first perimeter purlin beam connection element 1 are both provided with a plurality of arc holes 4 extending circumferentially along the rotation axis 3. The top plate and / or bottom plate of the second perimeter purlin beam connection element 2 are provided with an arc hole 4 extending circumferentially along the rotation axis 3. In this embodiment, the top plate and bottom plate of the second perimeter purlin beam connection element 2 are both provided with a plurality of arc holes 4 extending circumferentially along the rotation axis 3. Based on this, after the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit are connected as a whole through the universal corner connection assembly of the steel perimeter purlin of the foundation pit (specifically, the first connection end plate 1.0 of the first perimeter purlin beam connection element 1 is connected to one end of a steel perimeter purlin beam 5 through an end bolt, and the second connection end plate 2.0 of the second perimeter purlin beam connection element 2 is connected to one end of another steel perimeter purlin beam 5 through an end bolt, so that the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit are connected as a whole through the universal corner connection assembly of the steel perimeter purlin of the foundation pit) The top plates of the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are connected together by connecting bolts passing through the arc holes 4; the bottom plates of the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are connected together by connecting bolts passing through the arc holes 4; a connecting bolt is arranged in each arc hole 4, and the relative position between the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 is locked by multiple connecting bolts, thereby improving the structural stability between the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit.
[0038] Further, such as Figure 1 , Figure 2As shown, the first purlin beam connection element 1 also includes a side plate 1.5 connecting the top plate and the bottom plate, and the second purlin beam connection element 2 also includes a side plate connecting the top plate and the bottom plate. In this way, the structural stability of the first purlin beam connection element 1 and the second purlin beam connection element 2 can be improved. The top plate, the bottom plate and the side plate 1.5 of the first purlin beam connection element are welded together as a whole; or the top plate, the bottom plate and the side plate 1.5 of the first purlin beam connection element are integrally manufactured. In this embodiment, the top plate, the bottom plate and the side plate 1.5 of the first purlin beam connection element are welded together as a whole. The top plate, the bottom plate and the side plate 1.5 of the second purlin beam connection element are welded together as a whole; or the top plate, the bottom plate and the side plate 1.5 of the second purlin beam connection element are integrally manufactured. In this embodiment, the top plate, the bottom plate and the side plate 1.5 of the second purlin beam connection element are welded together as a whole.
[0039] Further, such as Figure 1 , Figure 2 As shown, a plurality of long holes 1.6 are provided on the side plate. The length direction of the long holes on the side plate of the first perimeter purlin beam connection element 1 is perpendicular to the first connection end plate 1.0, and the length direction of the long holes on the side plate of the second perimeter purlin beam connection element 2 is perpendicular to the second connection end plate 2.0. In this way, when the steel perimeter purlin is distributed in multiple layers from the outside to the inside, the side plates of the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 can be connected to the steel perimeter purlin beam 5 by passing bolts through the long holes.
[0040] Further, such as Figure 1 , Figure 2 As shown, the first purlin beam connection element 1 further includes an inner connection element 1.4 connecting the top plate and the bottom plate, and the inner connection element 1.4 is located between the top plate and the bottom plate of the first purlin beam connection element 1; the second purlin beam connection element 2 further includes an inner connection element 1.4 connecting the top plate and the bottom plate, and the inner connection element 1.4 is located between the top plate and the bottom plate of the second purlin beam connection element 2. In this way, the structural stability of the first purlin beam connection element 1 and the second purlin beam connection element 2 can be improved.
[0041] The top plate, bottom plate, side plate 1.5 of the first purlin beam connecting element are welded together with the four internal connecting elements 1.4; or the top plate, bottom plate, side plate 1.5 and the four internal connecting elements 1.4 are integrally formed. In this embodiment, the top plate, bottom plate, side plate 1.5 of the first purlin beam connecting element are welded together with the four internal connecting elements 1.4. The top plate, bottom plate, side plate 1.5 of the second purlin beam connecting element are welded together with the four internal connecting elements 1.4; or the top plate, bottom plate, side plate 1.5 of the second purlin beam connecting element are integrally formed. In this embodiment, the top plate, bottom plate, side plate 1.5 of the second purlin beam connecting element are welded together with the four internal connecting elements 1.4.
[0042] In this embodiment, the internal connecting element 1.4 on the first purlin beam connecting element 1 includes a connecting plate and a reinforcing rib plate. The connecting plate connects the top plate, the bottom plate and the first connecting end plate 1.0 on the first purlin beam connecting element 1, and the reinforcing rib plate connects the first connecting end plate 1.0 and the connecting plate on the first purlin beam connecting element 1.
[0043] The inner connection element 1.4 on the second purlin connection element 2 includes a connection plate and a reinforcing rib plate. The connection plate connects the top plate, the bottom plate and the second connection end plate 2.0 on the second purlin connection element 2. The reinforcing rib plate connects the second connection end plate 2.0 and the connection plate on the second purlin connection element 2.
[0044] Specific embodiment three, as Figure 3 As shown, a foundation pit steel purlin includes a plurality of steel purlin beams 5 and a universal corner connection assembly for foundation pit steel purlin. The specific structure of the universal corner connection assembly for foundation pit steel purlin in this embodiment refers to the specific embodiment 1. Specifically, the universal corner connection assembly for foundation pit steel purlin includes a first purlin beam connection element 1 and a second purlin beam connection element 2 that are rotatably connected via a rotating shaft 3. A first connection end plate 1.0 is provided at the end of the first purlin beam connection element 1, and a first end plate connection hole 1.1 is provided on the first connection end plate 1.0. A second connection end plate 2.0 is provided at the end of the second purlin beam connection element 2, and a second end plate connection hole 2.1 is provided on the second connection end plate 2.0.
[0045] The two adjacent steel perimeter purlin beams 5 located at the corner of the foundation pit are connected by a universal corner connection assembly of steel perimeter purlins for foundation pits, wherein the first connection end plate 1.0 of the first perimeter purlin beam connection element 1 is connected to one end of a steel perimeter purlin beam 5 by an end bolt; the second connection end plate 2.0 of the second perimeter purlin beam connection element 2 is connected to one end of another steel perimeter purlin beam 5 by an end bolt; thereby, the two adjacent steel perimeter purlin beams 5 located at the corner of the foundation pit are connected as a whole by the universal corner connection assembly of steel perimeter purlins for foundation pits. Since the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are rotatably connected by the rotating shaft 3, they can be adapted to various different corner angles of the corner of the foundation pit, and have good versatility. The first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are both connected to the steel perimeter purlin beam 5 by end bolts, so they are easy to install and disassemble and can be recycled.
[0046] Furthermore, after the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit are connected as a whole through the universal corner connection assembly of the foundation pit steel perimeter purlin, the top plates of the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are connected together by connecting bolts passing through the arc-shaped holes 4; the bottom plates of the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 are connected together by connecting bolts passing through the arc-shaped holes 4; a connecting bolt is arranged in each arc-shaped hole 4, and the relative position between the first perimeter purlin beam connection element 1 and the second perimeter purlin beam connection element 2 is locked by multiple connecting bolts, thereby improving the structural stability between the two adjacent steel perimeter purlin beams 5 at the corner of the foundation pit.
[0047] The above description is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.
Claims
1. A universal corner connection assembly for foundation pit steel purlin, characterized in that: include: A first purlin connecting element (1); A second purlin beam connecting element (2), wherein the first purlin beam connecting element and the second purlin beam connecting element are rotatably connected via a rotating shaft (3); A first connecting end plate (1.0) is provided at the end of the first purlin beam connecting element, and a first end plate connecting hole is provided on the first connecting end plate; a second connecting end plate (2.0) is provided at the end of the second purlin beam connecting element, and a second end plate connecting hole is provided on the second connecting end plate.
2. The universal corner connection assembly for foundation pit steel purlin according to claim 1 is characterized in that: The rotating shaft comprises an inner shaft sleeve (3.1) and an outer shaft sleeve (3.2) which are coaxially distributed, the inner shaft sleeve being inserted into the outer shaft sleeve, one of the inner shaft sleeve and the outer shaft sleeve being fixedly connected to the first surrounding purlin beam connecting element, and the other being fixedly connected to the second surrounding purlin beam connecting element.
3. The universal corner connection assembly for foundation pit steel purlin according to claim 1, characterized in that: The first purlin beam connection element (1) comprises a top plate and a bottom plate which are parallel to each other; the second purlin beam connection element (2) comprises a top plate and a bottom plate which are parallel to each other, the top plate of the second purlin beam connection element is parallel to the top plate of the first purlin beam connection element, and the rotation axis (3) is perpendicular to the top plate and connects the top plate and the bottom plate of the first purlin beam connection element and the second purlin beam connection element.
4. The universal corner connection assembly for foundation pit steel purlin according to claim 3 is characterized in that: The rotating shaft comprises an inner shaft sleeve (3.1) and an outer shaft sleeve (3.2) which are coaxially distributed. The rotating shaft (3) is perpendicular to the top plate of the first surrounding purlin beam connecting element. One of the inner shaft sleeve and the outer shaft sleeve connects the top plate and the bottom plate of the first surrounding purlin beam connecting element; and the other shaft sleeve connects the top plate and the bottom plate of the second surrounding purlin beam connecting element.
5. The universal corner connection assembly for foundation pit steel purlin according to claim 4, characterized in that: The inner shaft sleeve (3.1) is fixedly connected to the top plate and the bottom plate of the first purlin beam connection element (1), and the outer shaft sleeve (3.2) is fixedly connected to the top plate and the bottom plate of the second purlin beam connection element (2). The outer shaft sleeve is located between the top plate and the bottom plate of the first purlin beam connection element, and the top plate and the bottom plate of the second purlin beam connection element are also located between the top plate and the bottom plate of the first purlin beam connection element.
6. A universal corner connection assembly for foundation pit steel purlins according to claim 3, 4 or 5, characterized in that: It also includes connecting bolts, the top plate and / or the bottom plate of the first purlin beam connecting element are provided with an arc-shaped hole (4) extending along the circumference of the rotating shaft, and the top plate and / or the bottom plate of the second purlin beam connecting element are provided with an arc-shaped hole (4) extending along the circumference of the rotating shaft.
7. A universal corner connection assembly for foundation pit steel purlins according to claim 3, 4 or 5, characterized in that: The first purlin beam connection element further includes a side plate connecting the top plate and the bottom plate, and the second purlin beam connection element further includes a side plate connecting the top plate and the bottom plate.
8. The universal corner connection assembly for foundation pit steel purlin according to claim 7, characterized in that: The side plate is provided with a plurality of elongated holes.
9. A universal corner connection assembly for foundation pit steel purlins according to claim 3, 4 or 5, characterized in that: The first purlin beam connection element also includes an inner connection element connecting the top plate and the bottom plate, and the inner connection element is located between the top plate and the bottom plate of the first purlin beam connection element; the second purlin beam connection element also includes an inner connection element connecting the top plate and the bottom plate, and the inner connection element is located between the top plate and the bottom plate of the second purlin beam connection element.
10. A foundation pit steel purlin, comprising a plurality of steel purlin beams, characterized in that: It also includes a universal corner connection assembly for steel purlins for foundation pits as described in any one of claims 1 to 9, wherein two adjacent steel purlin beams located at the corner of the foundation pit are connected by a universal corner connection assembly for steel purlins for foundation pits, wherein a first connecting end plate of a first purlin beam connecting element is connected to one end of a steel purlin beam by an end bolt, and a second connecting end plate of a second purlin beam connecting element is connected to one end of another steel purlin beam by an end bolt.