A stable connection node for a civil steel structure and a method of use

Abstract

The application discloses a stable connecting joint for a civil engineering steel structure and a use method, an inner end of a connecting head (2) is inserted into an inner groove of an end of a cross-shaped steel structure joint (1); a sealing sleeve (3) is fixedly connected to an upper portion of a crossbeam of the steel structure joint (1); a sliding plate (4) is slidably connected to the inside of the sealing sleeve (3); a limiting rod (5) is fixedly connected to the bottom of the sliding plate (4); a sliding groove (6) is formed in the inside of the sliding plate (4); a sliding rod (7) is slidably connected to the inside of the sliding groove (6); a cam (8) is fixedly connected to one end of the sliding rod (7); a rotating shaft is fixedly connected to the outside of the side of the cam (8) far away from the sliding rod (7); and a handle is fixedly connected to the end of the rotating shaft far away from the cam (8). A user only needs to rotate the handle to control the positioning rod and the limiting rod in sequence, so that the operation is more convenient, the convenience of use is improved, and the efficiency of the connection between the connecting head and the steel structure joint is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure, and particularly relates to a steel structure connecting joint and a use method. BACKGROUND

[0002] Steel truss, steel beam or column made of steel plate or profile steel is a main component of steel structure, and is generally connected by rivets or welding. Steel structure is widely applied in the fields of building, factory building and bridge building due to its light weight and high strength. For a steel structure system, the connection of key nodes directly affects the overall engineering quality, and the design optimization of steel structure connecting joints is an important direction in the fields of building engineering and structure engineering. With the continuous increase of steel production and the continuous development and improvement of steel structure technology, steel structure has been rapidly developed and is increasingly applied in industrial and civil buildings. Intelligent processing production lines of steel structure play a vital role.

[0003] Steel structure is a structure with the highest degree of industrialization, and has the advantages of low cost and mobility in use. Therefore, most of the existing factory buildings are completed by using steel structure. In the process of building steel structure, a large number of nodes appear, and the nodes need to be connected by node components. Therefore, the quality of node components directly affects the safety of the entire steel structure.

[0004] In the design of the present steel structure connecting joint, the rigidity of the connecting joint is improved by reasonably distributing the connecting positions of bolts and improving the strength of the bolts. However, in the actual use process, in order to cope with sudden situations such as earthquakes, the steel structure connecting joint needs to have a certain ductility, and cannot only pursue rigidity. In addition, the steel structure connecting joint needs to have a certain active connection effect, so as to adapt to the extension demand under special conditions and prevent the overall structure from collapsing. The steel structure connecting joint can effectively reduce the overall collapse of the building caused by the earthquake and the resulting harm.

[0005] The Chinese patent discloses patent No. CN202222159247.0 a high-strength steel structure node, the invention can be installed and fixed by designing the limiting rod, the connecting head and the steel structure node, and through the insertion of the positioning rod and the sliding block, the sliding block can be limited, which can prevent the sliding block from moving in the vertical direction, thereby preventing the movement of the limiting rod, and improving the connection stability of the connecting head and the steel structure node. However, the steel structure node still has certain problems, the operation of the limiting rod and the positioning rod is independent and separated, when installing the connecting head and the steel structure node, the user needs to pull the positioning rod first, and then pull the limiting rod, after the connecting head is inserted into the steel structure node, the limiting rod is loosened first, the limiting rod is combined with the connecting head, then the positioning rod is loosened, the positioning rod is combined with the limiting rod, and the installation can be completed, the operation steps are very complicated, the convenience of use is reduced, and the efficiency of the connection between the connecting head and the steel structure node is not improved. SUMMARY

[0006] The purpose of the present application is to overcome the actual situation of the existing steel structure node connection installation, operation steps are complicated, operation steps are complicated, use is not convenient, and connection efficiency is low, and to provide a stable connection node for civil steel structure.

[0007] In order to achieve the above-mentioned purpose of the present application, a stable connection node for civil steel structure adopts the following technical scheme:

[0008] The application discloses a stable connecting joint for a civil engineering steel structure, which comprises a connecting head and a cross-shaped steel structure joint, the inner end of the connecting head is inserted into the inner groove of the end of the beam of the cross-shaped steel structure joint, and the upper part of the inner end of the connecting head is provided with a groove; two symmetrically fixed sealing sleeves are arranged on the upper part of the beam of the steel structure joint; a sliding plate is slidably connected in the sealing sleeve; a limiting rod is fixedly connected to the bottom of the sliding plate and vertically extends into the steel structure joint; the limiting rod is slidably connected with the beam of the steel structure joint, and when the lower end of the limiting rod is combined with the upper groove of the inner end of the connecting head, the connecting head and the steel structure joint can be fixedly connected; a sliding groove is formed in the sliding plate, a sliding rod is slidably connected in the sliding groove, one end of the sliding rod is fixedly connected with a cam, one side of the sliding plate is combined with the cam, and the other side of the sliding plate is combined with the inner wall of the sealing sleeve, so that the sliding plate can be limited; a rotating shaft is fixedly connected to the side, away from the sliding rod, of the outer part of the cam, the rotating shaft vertically penetrates through the sealing sleeve and extends to the outer part of the sealing sleeve; the rotating shaft is rotatably connected with the sealing sleeve; a push plate is slidably connected in the sealing sleeve, the outer wall of the push plate is combined with the inner wall of the sealing sleeve, and the push plate is closely combined with the inner wall of the sealing sleeve, so as to limit the push plate and make the push plate more stable when moving; the positioning rod at the bottom of the push plate can be more smoothly combined with the limiting rod; the cam is slidably connected with the push plate, the bottom of the push plate is fixedly connected with a positioning rod, the inner part of the positioning rod is slidably connected with a first fixing rod, the first fixing rod is fixedly connected with the sealing sleeve, and a first spring is arranged between the first fixing rod and the positioning rod; one end, away from the cam, of the outer part of the rotating shaft is fixedly connected with a handle; under the elastic force of the first spring, the push plate on the positioning rod is tightly combined with the cam; when the cam is driven to rotate through the handle and the rotating shaft, the cam extrudes the push plate, and the positioning rod is driven to separate from the limiting rod through the push plate. In addition, the handle is convenient for a user to rotate the rotating shaft, the cam is driven to rotate through the rotating shaft, the push plate is driven to separate from the limiting rod through the extrusion of the cam on one hand and the extrusion of the sliding rod on the inner wall of the sliding groove on the other hand, so as to drive the limiting rod to separate from the connecting head.

[0009] Preferably, a second fixing rod is slidably connected in the inner part of the sliding plate, the second fixing rod is fixedly connected with the sealing sleeve, and a second spring is arranged between the second fixing rod and the sliding plate. The elastic force of the second spring is used to drive the sliding plate to reset, one side of the sliding plate is combined with the cam, the other side of the sliding plate is combined with the inner wall of the sealing sleeve, the sliding plate can be limited, and the sliding plate is more stable when moving.

[0010] Preferably, the sliding groove is a circular arc structure. When the cam rotates, it can drive the sliding rod to move in a circular motion, and the sliding rod can extrude the inner wall of the sliding groove, thereby driving the sliding plate to move up and down. Since the sliding groove is a circular arc structure, when the sliding plate is in the lower position, the cam will only drive the sliding rod to slide in the sliding groove at the beginning, without extruding the inner wall of the sliding groove. During this period, the cam can extrude the push plate, and the push plate can drive the positioning rod to separate from the limiting rod, so that the movement of the positioning rod and the limiting rod has a sequence, avoiding movement interference and preventing the situation from being stuck.

[0011] Further, the center of the sliding groove and the center of the rotating shaft are on the same straight line. Since the center of the sliding groove and the center of the rotating shaft are on the same straight line, when the sliding plate is in the lower position, if the cam rotates, the cam will only drive the sliding rod to slide in the sliding groove, without extruding the inner wall of the sliding groove, thereby also not driving the sliding plate to move.

[0012] The application also discloses a use method of the stable connecting joint for civil steel structures. When the connecting head and the steel structure joint need to be connected, a user holds the handle on one side of the sealing sleeve, then rotates the rotating shaft in a forward direction through the handle, the rotating shaft drives the cam to rotate, the cam directly extrudes the push plate, the push plate drives the positioning rod to move away from the limiting rod, until the positioning rod separates from the limiting rod, in the process, the cam drives the sliding rod to move in a circular motion, the sliding rod slides in the sliding groove, until the sliding rod abuts against the inner wall of the sliding groove, at this time, the sliding rod pushes the sliding plate to move upward, and the sliding plate drives the limiting rod to move upward; after the connecting head is inserted into the steel structure joint, the handle is loosened, the limiting rod is combined with the connecting head by the elastic force of the second spring, and the positioning rod is combined with the limiting rod by the elastic force of the first spring, so that the connection of the connecting head and the steel structure joint is completed.

[0013] The stable connecting joint for civil steel structures and the use method have the following beneficial effects after adopting the above technical scheme:

[0014] In use, the user rotates the rotating shaft in a forward direction through the handle, the rotating shaft drives the cam to extrude the push plate, drives the positioning rod to separate from the limiting rod, then the cam drives the sliding rod to push the sliding plate to move upward, the sliding plate drives the limiting rod to move upward, after the connecting head is inserted into the steel structure joint, the handle is loosened, so that the limiting rod is combined with the connecting head, and the positioning rod is combined with the limiting rod, so that the connection of the connecting head and the steel structure joint is completed. The user only needs to rotate the handle to control the positioning rod and the limiting rod in sequence, the operation is more convenient, the convenience of use is improved, and the efficiency of the connection of the connecting head and the steel structure joint is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the stable connecting joint for civil steel structures.

[0016] Figure 2 This is a schematic structural diagram of the positioning rod and the limiting rod of the present invention when combined;

[0017] Figure 3 It is a structural schematic diagram of the present invention when the positioning rod and the limiting rod are separated;

[0018] Figure 4 is a schematic cross-sectional view of a skateboard of the present invention;

[0019] Figure 5 is a cross-sectional schematic diagram of a positioning rod of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the cam of the present invention.

[0021] The figures are marked as follows: 1-steel structure node; 2-connector; 3-sealing sleeve; 4-slide plate; 5-limiting rod; 6-slide groove; 7-slide rod; 8-cam; 9-rotating shaft; 10-handle; 11-push plate; 12-positioning rod; 13-first fixing rod; 14-first spring; 15-second fixing rod; 16-second spring. DETAILED DESCRIPTION

[0022] To further illustrate the present invention, a more detailed description of a stable connection node for civil steel structures is provided below, with reference to the accompanying drawings. Obviously, the embodiments described herein represent only a portion of the present invention, and not all of its embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments herein without inventive effort are also within the scope of protection of the present invention.

[0023] Depend on Figure 1 The overall structural diagram of a stable connection node for a civil steel structure of the present invention is shown in FIG. Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6The application discloses a stable connecting joint for a civil engineering steel structure, which comprises a connecting head 2 and a "cross"-shaped steel structure joint 1. The inner end of the connecting head 2 is inserted into the inner groove of the end of the beam of the "cross"-shaped steel structure joint 1, and the inner end of the connecting head 2 is provided with a groove at the upper portion. The upper portion of the beam of the steel structure joint 1 is symmetrically and fixedly connected with sealing sleeves 3 on both sides, the inner portion of the sealing sleeve 3 is slidably connected with a sliding plate 4, the inner portion of the sliding plate 4 is slidably connected with a second fixing rod 15, the second fixing rod 15 is fixedly connected with the sealing sleeve 3, a second spring 16 is arranged between the second fixing rod 15 and the sliding plate 4, the elastic force of the second spring 16 is used for driving the sliding plate 4 to return, one side of the sliding plate 4 is attached to a cam 8, the other side of the sliding plate 4 is attached to the inner wall of the sealing sleeve 3, and the sliding plate 4 can be limited. The bottom of the sliding plate 4 is fixedly connected with a limiting rod 5. The limiting rod 5 is perpendicular to the beam of the steel structure joint 1 and extends to the inner portion of the beam of the steel structure joint 1, the limiting rod 5 is slidably connected with the beam of the steel structure joint 1, and when the lower end of the limiting rod 5 is combined with the groove at the upper portion of the inner end of the connecting head 2, the connecting head 2 and the steel structure joint 1 can be connected and fixed. The inner portion of the sliding plate 4 is provided with a circular-arc-shaped sliding groove 6, the inner portion of the sliding groove 6 is slidably connected with a sliding rod 7, one end of the sliding rod 7 is fixedly connected with the cam 8, the outer portion of the cam 8, away from the sliding rod 7, is fixedly connected with a rotating shaft 9, the rotating shaft 9 vertically penetrates through the sealing sleeve 3 and extends to the outer portion of the sealing sleeve 3. The rotating shaft 9 is rotatably connected with the sealing sleeve 3, the inner portion of the sealing sleeve 3 is slidably connected with a push plate 11, the outer side wall of the push plate 11 is attached to the inner side wall of the sealing sleeve 3, thereby limiting the push plate 11, the push plate 11 is more stable when moving in cooperation with the first fixing rod 13, and the push plate 11 will not shake, which is beneficial to the positioning rod 12 at the bottom of the push plate 11 to be more smoothly combined with the limiting rod 5. The cam 8 is slidably connected with the push plate 11, the bottom of the push plate 11 is fixedly connected with the positioning rod 12, the inner portion of the positioning rod 12 is slidably connected with the first fixing rod 13, the first fixing rod 13 is fixedly connected with the sealing sleeve 3, a first spring 14 is arranged between the first fixing rod 13 and the positioning rod 12. The outer portion of the rotating shaft 9, away from the cam 8, is fixedly connected with a handle 10, the handle 10 is convenient for a user to rotate the rotating shaft 9, and the rotating shaft 9 drives the cam 8 to rotate. The center of the sliding groove 6 is on the same straight line with the center of the rotating shaft 9, when the sliding plate 4 is at the lower position, if the cam 8 rotates, the cam 8 only drives the sliding rod 7 to slide in the sliding groove 6, and the inner wall of the sliding groove 6 is not pressed, so that the sliding plate 4 is not moved.

[0024] By Figure 1 the overall structure diagram of the stable connecting joint for a civil engineering steel structure shown in the figure and Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6It can be seen that, under the elastic force of the first spring 14, the push plate 11 on the positioning rod 12 is tightly abutted against the cam 8, when the cam 8 rotates, the cam 8 will extrude the push plate 11, and through the push plate 11, the positioning rod 12 is separated from the limiting rod 5; the sliding groove 6 is a circular arc structure, when the cam 8 rotates, the sliding rod 7 can be driven to do circular motion, through the sliding rod 7 extruding the inner wall of the sliding groove 6, the sliding plate 4 is driven to move up and down, since the sliding groove 6 is a circular arc structure, when the sliding plate 4 is at the lower position, the cam 8 only drives the sliding rod 7 to slide in the sliding groove 6 at the beginning, and will not extrude the inner wall of the sliding groove 6, in this period, the cam 8 can extrude the push plate 11, through the push plate 11, the positioning rod 12 is separated from the limiting rod 5, so that the movement of the positioning rod 12 and the movement of the limiting rod 5 have a sequence, avoiding causing motion interference. In addition, since the push plate 11 is tightly abutted against the inner wall of the sealing sleeve 3, the push plate 11 is limited, and the first fixed rod 13 is matched, so that the push plate 11 moves more stably and will not shake, which is beneficial to the positioning rod 12 at the bottom of the push plate 11 to combine with the limiting rod 5 more smoothly.

[0025] The use method of the stable connecting joint for the civil steel structure is as follows: when it is needed to connect the connecting head 2 and the steel structure joint 1, the user holds the handle 10 on one side of the sealing sleeve 3, and then positively rotates the rotating shaft 9 through the handle 10, the rotating shaft 9 drives the cam 8 to rotate, the cam 8 directly extrudes the push plate 11, the push plate 11 drives the positioning rod 12 to move away from the limiting rod 5, until the positioning rod 12 is separated from the limiting rod 5, in the process, the cam 8 drives the sliding rod 7 to do circular motion, the sliding rod 7 slides in the sliding groove 6, until the sliding rod 7 is tightly abutted against the inner wall of the sliding groove 6, at this time, the sliding rod 7 drives the sliding plate 4 to move upwards, the sliding plate 4 drives the limiting rod 5 to move upwards, after the connecting head 2 is inserted into the steel structure joint 1, the handle 10 is loosened, the limiting rod 5 is combined with the connecting head 2 by the elastic force of the second spring 16, and the positioning rod 12 is combined with the limiting rod 5 by the elastic force of the first spring 14, so that the connection of the connecting head 2 and the steel structure joint 1 is completed, the user only needs to rotate the handle 10 to control the positioning rod 12 and the limiting rod 5 in sequence, the operation is more convenient, the convenience of use is improved, and the efficiency of the connection of the connecting head 2 and the steel structure joint 1 is improved.

[0026] It should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, the "first", "second" are only for the convenience of description and differentiation, therefore cannot be understood as a limitation on the present application.

[0027] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents, and any equivalent replacement or change within the technical scope disclosed by the present application and according to the technical solutions and inventive concepts of the present application should be covered within the scope of protection of the present application.

Claims

1. A stable connection node for civil steel structure, characterized by: It comprises a connector (2) and a "cross"-shaped steel structure node (1), wherein the inner end of the connector (2) is inserted into the inner groove of the end of the cross beam of the "cross"-shaped steel structure node (1), and a groove is provided on the upper part of the inner end of the connector (2); a sealing sleeve (3) is symmetrically fixedly connected to the upper part of the cross beam of the steel structure node (1), and a slide plate (4) is slidably connected to the inside of the sealing sleeve (3), and a limit rod (5) is fixedly connected to the bottom of the slide plate (4), and the limit rod (5) is perpendicular to the steel structure node (1) ) beam and extends to the interior of the steel structure node (1) beam, the limiting rod (5) is slidably connected to the steel structure node (1) beam, and when the lower end of the limiting rod (5) is combined with the upper groove of the inner end of the connector (2), the connector (2) and the steel structure node (1) can be connected and fixed; a sliding groove (6) is provided inside the slide (4), and a sliding rod (7) is slidably connected inside the sliding groove (6), and one end of the sliding rod (7) is fixedly connected to the cam (8), and one side of the slide (4) is connected to the The cam (8) is fitted, and the other side of the slide plate (4) is fitted with the inner wall of the sealing sleeve (3) and limits the slide plate (4); the outer side of the cam (8) away from the sliding rod (7) is fixedly connected to the rotating shaft (9), and the rotating shaft (9) vertically penetrates the sealing sleeve (3) and extends to the outside of the sealing sleeve (3); the rotating shaft (9) is rotatably connected to the sealing sleeve (3), and the inside of the sealing sleeve (3) is slidably connected to the push plate (11), and the outer wall of the push plate (11) is fitted with the inner wall of the sealing sleeve (3). The push plate (11) is limited, the cam (8) is slidably connected to the push plate (11), the bottom of the push plate (11) is fixedly connected to a positioning rod (12), the interior of the positioning rod (12) is slidably connected to a first fixing rod (13), the first fixing rod (13) is fixedly connected to the sealing sleeve (3), and a first spring (14) is provided between the first fixing rod (13) and the positioning rod (12); the outer end of the rotating shaft (9) away from the cam (8) is fixedly connected to a handle (10).

2. A stable connection node for a civil steel structure according to claim 1, characterized in that: A second fixing rod (15) is slidably connected to the interior of the slide plate (4), the second fixing rod (15) is fixedly connected to the sealing sleeve (3), and a second spring (16) is provided between the second fixing rod (15) and the slide plate (4).

3. A stable connection node for a civil steel structure according to claim 1, characterized in that: The slide groove (6) is an arc-shaped structure.

4. A stable connection node for a civil steel structure according to claim 1, characterized in that: The center of the chute (6) and the center of the rotating shaft (9) are on the same straight line.

5. The stable connection node for civil steel structure according to claim 2, characterized in that: The slide groove (6) is an arc-shaped structure; the center of the slide groove (6) and the center of the rotating shaft (9) are on the same straight line.

6. A method for using a stable connection node for a civil steel structure according to claim 2, 3, 4 or 5, characterized in that: When the connector (2) needs to be connected to the steel structure node (1), the user holds the handle (10) on one side of the sealing sleeve (3), and then rotates the shaft (9) in the forward direction through the handle (10). The shaft (9) drives the cam (8) to rotate, and the cam (8) directly squeezes the push plate (11). The push plate (11) drives the positioning rod (12) away from the limit rod (5) until the positioning rod (12) is separated from the limit rod (5). During the process, the cam (8) drives the slide rod (7) to make a circular motion, and the slide rod (7) moves in the slide groove ( 6) until the slide bar (7) is pressed against the inner wall of the slide groove (6), at which time the slide bar (7) pushes the slide plate (4) to move upward, and the slide plate (4) then drives the limit rod (5) to move upward; after the connector (2) is inserted into the steel structure node (1), the handle (10) is released, and the elastic force of the second spring (16) is used to drive the limit rod (5) to combine with the connector (2), and at the same time, the elastic force of the first spring (14) is used to drive the positioning rod (12) to combine with the limit rod (5), thereby completing the connection between the connector (2) and the steel structure node (1).

Images