A steel truss connection node

Abstract

The utility model relates to a kind of steel truss connecting joint, it includes: upper chord longitudinal rod, node is distributed with interval on it;Left upper chord cross bar, right upper chord cross bar, left lower inclined web, right lower inclined web, positioning sleeve;Purlin support, its bottom is equipped with taper head, fastening bolt is coaxially slidably assembled in taper head, fastening bolt is passed out downward from inside taper head, long circular groove extending along its axial direction is set on the stem of fastening bolt;The stem of fastening bolt is passed into sliding sleeve downward, positioning screw groove is opened in the both sides of sliding sleeve, positioning screw groove is threadedly connected with positioning bolt, the positioning bolt is screwed into long circular groove by positioning screw groove;Fastening bolt is passed out after the sliding sleeve, and it is screwed into positioning sleeve;Base plate, it is installed in the upper end of purlin support;Node plate, it is installed between purlin support and base plate.The utility model is favorable to provide the support of support keel frame, and support is accurately positioned to the node of upper chord longitudinal rod, to make roof installation more stable.

Description

Technical Field

[0001] This utility model relates to the field of steel truss nodes, and more particularly to a steel truss connection node. Background Technology

[0002] For example, Chinese invention patent application number CN118933178A discloses a large-span modular steel structure roof and its hoisting method. The roof includes multiple longitudinally extending steel trusses, with multiple transverse and diagonal steel pipes welded between each pair of adjacent steel trusses; the upper chord steel pipe of each steel truss is vertically welded with multiple transverse purlins; the roof panels are longitudinally arranged and include color steel plates and translucent polycarbonate panels; the color steel plates, which occupy most of the roof area, are fixed to each purlin by pneumatic nails; the gap between each pair of adjacent polycarbonate panels forms a light-transmitting strip, and each light-transmitting strip is equipped with a corresponding polycarbonate panel; each polycarbonate panel rests on the side of an adjacent color steel plate and the polycarbonate panel is detachably snapped to the resting color steel plate; the key to this method is to integrate the color steel plates, lighting system, and fire protection system onto the roof in advance and hoist it as a whole. The main method involves installing a keel frame on a steel truss and then installing the roof structure on the keel frame. However, when the keel frame is installed directly, positioning is relatively troublesome. Moreover, some of the loads of the keel frame are not directly transferred to the nodes, but are directly transferred to the upper chord longitudinal members. The stiffness of the members is not as great as that at the nodes, and the deformation of the members can easily lead to unstable roof installation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a steel truss connection node, which is beneficial to provide a support for the keel frame and to accurately position the support on the node of the upper chord longitudinal member, so as to make the roof installation more stable.

[0004] To solve the above problems, a steel truss connection node is adopted, which includes: The upper chord longitudinal member has nodes distributed at intervals on it; The upper left chord crossbar is installed to the left of the node; The upper right chord crossbar is installed on the right side of the node; The lower left diagonal brace is installed on the lower left side of the node; The lower right diagonal brace is installed on the lower right side of the node; A positioning sleeve, which is installed on the node; A purlin bracket has a conical head installed at its bottom. A fastening bolt is coaxially and slidably fitted into the conical head. The fastening bolt extends downward from the inside of the conical head, and an elongated groove extending axially is provided on the shank of the fastening bolt. The shank of the fastening bolt extends downward into a sliding sleeve. Locating screw grooves are provided on both sides of the sliding sleeve, and locating bolts are threaded onto the locating screw grooves. The locating bolts are screwed into the elongated grooves through the locating screw grooves. After the fastening bolt exits the sliding sleeve, it is screwed into the locating sleeve. The substrate is mounted on the upper end of the purlin. The node plate is installed between the purlin and the base plate.

[0005] This structure allows the positioning sleeve to provide positioning installation, eliminating the need for welding and tedious point-finding processes during installation. It also helps ensure installation accuracy. After the fastening bolt slides through the conical head, the threaded connection of the positioning sleeve achieves the positioning connection. The elongated groove allows the positioning bolt to slide up and down. The sliding sleeve controls the rotation of the fastening bolt through the positioning bolt, meaning that the fastening bolt does not need to be tightened from the inside; simply rotating the sliding sleeve achieves the tightening effect. The base plate is used to install the columns, which support the upper keel frame and provide installation points for the roof. The node plate can be used as a rib or to provide installation points for bolt ball joints, such as for drilling and welding bolt ball joints to form a space frame layer. This space frame layer further supports the keel frame or allows for the addition of additional frames.

[0006] As a further improvement of this utility model, the outer contour of the sliding sleeve is in the form of a hexagonal head.

[0007] With this structure, the hexagonal head is easier to twist.

[0008] As a further improvement of this utility model, a first rib is installed between the positioning sleeve and the node.

[0009] This structure makes the installation of the positioning sleeve more stable.

[0010] As a further improvement of this utility model, a base is provided on the bottom of the inner side of the cone head and placed on the bottom surface of the hexagonal head of the fastening bolt, and the rod of the fastening bolt slides through the base.

[0011] This structural base provides a larger pressing area for the fastening bolts, ensuring a stable pressing connection.

[0012] As a further improvement of this utility model, a second rib is provided between the base and the inner wall of the cone.

[0013] This structure improves the stiffness of the inner wall of the cone.

[0014] As a further improvement of this utility model, the top surface of the cone head is provided with an external threaded annular wall, and the lower end of the purlin has an internal threaded annular wall that is threadedly connected to the external threaded annular wall.

[0015] With this structure, the cone head and the lower end of the purlin can be threaded together to improve installation efficiency.

[0016] This invention provides a support for the keel frame and precisely positions the support at the node of the upper chord longitudinal member, thereby making the roof installation more stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0018] Figure 2 This is a partially enlarged structural diagram of an embodiment.

[0019] Figure 3 This is a schematic diagram of the structure for installing the cone head in an embodiment.

[0020] Figure 4 This is a schematic diagram of the internal structure of the cone.

[0021] Figure 5 This is a schematic diagram showing the sliding position of the positioning screw groove when the fastening bolt is in the tightened state.

[0022] Figure label: 1. Upper chord longitudinal member; 2. Node; 3. Upper left chord transverse member; 4. Upper right chord transverse member; 5. Lower left diagonal web member; 6. Lower right diagonal web member; 7. Positioning sleeve; 8. Purlin support; 801. Conical head; 802. Fastening bolt; 803. Long oval groove; 804. Sliding sleeve; 805. Locating screw groove; 806. Locating bolt; 807. Base; 808. Second rib; 809. External threaded annular wall; 9. Substrate; 10. Node plate; 11. First rib. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0025] Example 1 like Figures 1-5 As shown, a steel truss connection node includes: The upper chord longitudinal member 1 has nodes 2 distributed at intervals on it; The upper left chord crossbar 3 is installed to the left of node 2; The upper right chord crossbar 4 is installed to the right of node 2; Left lower diagonal web member 5, which is installed on the lower left side of node 2; The lower right diagonal web member 6 is installed on the lower right side of node 2; Positioning sleeve 7 is installed on node 2; A purlin bracket 8 has a conical head 801 installed at its bottom. A fastening bolt 802 is coaxially slidably fitted in the conical head 801. The fastening bolt 802 extends downward from the inside of the conical head 801. An elongated groove 803 extending axially is provided on the shank of the fastening bolt 802. The shank of the fastening bolt 802 extends downward into a sliding sleeve 804. Positioning screw grooves 805 are provided on both sides of the sliding sleeve 804. Positioning bolts 806 are threaded onto the positioning screw grooves 805. The positioning bolts 806 are screwed into the elongated grooves 803 through the positioning screw grooves 805. After the fastening bolt 802 extends out of the sliding sleeve 804, it is screwed into the positioning sleeve 7. The substrate 9 is mounted on the upper end of the purlin 8; The node plate 10 is installed between the purlin 8 and the base plate 9.

[0026] With this structure, the positioning sleeve 7 provides positioning installation, eliminating the need for welding and tedious point-finding processes during installation, and also helps ensure installation accuracy. After the fastening bolt 802 slides through the cone head 801, the threaded connection to the positioning sleeve 7 achieves positioning connection. The elongated groove 803 allows the positioning bolt 806 to slide up and down. The sliding sleeve 804 controls the rotation of the fastening bolt 802 through the positioning bolt 806, meaning that the fastening bolt 802 does not need to be tightened from the inside; simply rotating the sliding sleeve 804 achieves the tightening effect of the fastening bolt 802. The base plate 9 is used to install columns, which support the upper keel frame to provide installation points for the roof. The node plate 10 can be used as a rib or to provide installation points for bolt ball joints, such as opening holes for welding bolt ball joints to form a space frame layer. The space frame layer further supports the keel frame or allows for the addition of additional frames.

[0027] In this embodiment, the outer contour of the sliding sleeve 804 is in the form of a hexagonal head.

[0028] With this structure, the hexagonal head is easier to twist.

[0029] In this embodiment, a first rib 11 is installed between the positioning sleeve 7 and the node 2.

[0030] This structure makes the installation of the positioning sleeve 7 more stable.

[0031] In this embodiment, a base 807 is provided on the bottom inner side of the cone 801 and placed on the bottom surface of the hexagonal head of the fastening bolt 802, and the rod of the fastening bolt 802 slides through the base 807.

[0032] With this structure, the base 807 and fastening bolt 802 have a larger pressing area, which fully ensures stable pressing.

[0033] In this embodiment, a second rib 808 is provided between the base 807 and the inner wall of the cone 801.

[0034] With this structure, the inner wall stiffness of the cone 801 is improved.

[0035] In this embodiment, the top surface of the cone 801 is provided with an external threaded annular wall 809, and the lower end of the purlin 8 has an internal threaded annular wall that is threadedly connected to the external threaded annular wall 809.

[0036] With this structure, the cone head 801 and the lower end of the purlin support 8 can be threaded together to improve installation efficiency.

[0037] This invention provides a support for the keel frame and precisely positions the support at the node of the upper chord longitudinal member, thereby making the roof installation more stable.

[0038] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, achieving the same performance or purpose, should be considered within the protection scope of the present invention.

Claims

1. A steel truss connection node, characterized in that... include: The upper chord longitudinal bar (1) has nodes (2) distributed at intervals on it. The upper left chord crossbar (3) is installed to the left of node (2); The upper right chord crossbar (4) is installed to the right of node (2); The lower left diagonal brace (5) is installed on the lower left side of node (2); The lower right diagonal brace (6) is installed on the lower right side of node (2); Positioning sleeve (7), which is installed on node (2); A purlin bracket (8) has a cone head (801) installed at its bottom. A fastening bolt (802) is coaxially slidably mounted in the cone head (801). The fastening bolt (802) extends downward from inside the cone head (801). An elongated groove (803) extending along its axial direction is provided on the shank of the fastening bolt (802). The shank of the fastening bolt (802) extends downward into a sliding sleeve (804). Positioning screw grooves (805) are provided on both sides of the sliding sleeve (804). A positioning bolt (806) is threaded onto the positioning screw groove (805). The positioning bolt (806) is screwed into the elongated groove (803) through the positioning screw groove (805). After the fastening bolt (802) exits the sliding sleeve (804), it is screwed into the positioning sleeve (7). The substrate (9) is mounted on the upper end of the purlin bracket (8); The node plate (10) is installed between the purlin bracket (8) and the base plate (9).

2. The steel truss connection node according to claim 1, characterized in that... The outer contour of the sliding sleeve (804) is in the form of a hexagonal head.

3. The steel truss connection node according to claim 1, characterized in that... A first rib (11) is installed between the positioning sleeve (7) and the node (2).

4. The steel truss connection node according to claim 1, characterized in that... The cone (801) has a base (807) at its inner bottom that rests on the bottom surface of the hexagonal head of the fastening bolt (802), and the rod of the fastening bolt (802) slides through the base (807).

5. The steel truss connection node according to claim 4, characterized in that... A second rib (808) is provided between the base (807) and the inner wall of the cone (801).

6. The steel truss connection node according to claim 1, characterized in that... The top surface of the cone (801) is provided with an external threaded annular wall (809), and the lower end of the purlin (8) has an internal threaded annular wall that is threadedly connected to the external threaded annular wall (809).

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