Auxiliary installation device used for assembly type steel structure joints

Abstract

The utility model relates to the technical field of fabricated steel structures, in particular to an auxiliary mounting device for fabricated steel structure nodes, which comprises two groups of connecting plates symmetrically welded on the inner wall of one side of the top of a steel column, a steel beam is mounted between the two connecting plates, and the steel beam is connected with the connecting plates through fasteners. A bolt in the fastener is mounted through the auxiliary mounting device; the auxiliary mounting device comprises a square supporting plate, telescopic columns extending outwards are arranged on the two end faces of a supporting plate body respectively, a bearing plate is arranged in the outward extending direction of the telescopic columns, and a plurality of limiting grooves are formed in the outer end face of the bearing plate. When a constructor connects nodes, the bolts are placed in the limiting grooves, external force is applied to the protrusions of the bearing plate, the telescopic columns and the springs are compressed, the bolts are placed in the steel beam, the external force is released after positioning, the multiple sets of bolts penetrate through the mounting holes a and the mounting holes b at the same time through resilience force of the springs, and positioning and mounting of the multiple sets of bolts at a time are achieved. The operation process is simple, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled steel structures, in particular to an auxiliary installation device used at a node of an assembled steel structure. Background Art

[0002] Steel structure is one of the main types of building structures. The connections at the nodes of steel structure are usually welded, bolted or rivet. With the continuous advancement of my country's infrastructure construction, steel structure has been widely used due to its advantages such as easy installation and short construction period.

[0003] The existing node connection structure of prefabricated steel structure buildings needs to be hoisted with the steel beam in advance when bolt connection is adopted. During the hoisting process, the through holes of the steel beam are made to correspond with the through holes of the steel column, and then high-strength bolts are passed through the through holes to fix the connection nodes of the two. During the fixing process, multiple groups of high-strength bolts need to be inserted in sequence. Multiple insertions of bolts not only waste time, but also require multiple positioning, resulting in low installation efficiency of prefabricated steel structures.

[0004] Therefore, the applicant provides an auxiliary installation device for use at a node of a prefabricated steel structure to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide an auxiliary installation device for use at a node of an assembled steel structure, so as to solve the problems of the existing multiple insertion of bolt groups, waste of time, multiple positioning requirements, low installation efficiency, etc.

[0006] In order to solve the above technical problems, the utility model provides an auxiliary installation device for use at the nodes of prefabricated steel structures, including two groups of connecting plates symmetrically welded on the inner wall on one side of the top of a steel column, a steel beam is installed between the two connecting plates, the steel beam and the connecting plate are connected by fasteners, and the bolts in the fasteners are installed through an auxiliary installation device; the auxiliary installation device includes a square support plate, and telescopic columns extending outward are respectively arranged on both end surfaces of the support plate body, a bearing plate is arranged in the direction of the outward extension of the telescopic column, and a plurality of limit grooves are arranged on the outer end surface of the bearing plate.

[0007] Furthermore, the telescopic column is fixed to the middle of the two inner walls between the support plate and the load-bearing plate.

[0008] Furthermore, the telescopic column comprises a fixed column with an opening at one end and a movable column, one end of the movable column body is sleeved on the open end of the fixed column, and the other end of the fixed column is fixed to the support plate.

[0009] Furthermore, the telescopic column is sleeved on the spring, and two ends of the spring are respectively fixed between the support plate and the bearing plate on the same side.

[0010] Furthermore, the bearing plate is a convex metal sheet, and the protrusions are used to apply external force.

[0011] Furthermore, a plurality of limiting grooves are symmetrically installed on the outer side of the auxiliary installation device, that is, the outer side walls of the two bearing plates. The limiting grooves are hexagonal grooves adapted to the bolt heads.

[0012] Furthermore, the mounting holes a are formed in an array on the steel beam, and the mounting holes b are formed in an array on the connecting plate, and the specifications of the mounting holes a and the mounting holes b are consistent.

[0013] Furthermore, the fastener includes a bolt adapted to a nut, and the bolt is adapted to the mounting hole a.

[0014] Furthermore, the bolt passes through the mounting hole a and the mounting hole b on the same side, and the tail of the bolt is threadedly connected to the nut.

[0015] Furthermore, both the steel columns and the steel beams are high-strength H-shaped steels.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. The utility model provides an auxiliary installation device for the nodes of assembled steel structures. When connecting the nodes between the steel column and the steel beam, the bolt head is placed in the limit groove. During the hoisting connection, the staff applies external force to the protrusion of the bearing plate to compress the telescopic column and the spring, so that the bolt is located in the steel beam. After the positioning is completed, the external force is released, and the resilience of the telescopic column and the spring is relied on to make multiple groups of bolts pass through the installation hole a and the installation hole b at the same time, so that the positioning of multiple groups of bolts is completed at one time, and the installation of multiple groups of bolts is realized at one time. The operation process is simple, and the installation efficiency of the assembled steel structure is effectively improved.

[0018] 2. Originally, two wrenches were needed to install fasteners, one to hold the bolt head to limit the rotation of the bolt, and the other to hold the nut to tighten the nut with the correct torque. After using the installation auxiliary device, the limit groove is a hexagonal groove that holds the bolt head. Only one wrench is needed to tighten the nut on the outside of the steel beam, which is simpler and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is an overall schematic diagram of an auxiliary installation device used at a node of an assembled steel structure;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure enlarged at point A;

[0022] Figure 3 A schematic diagram of the bottom structure of an auxiliary installation device used at a node of an assembled steel structure;

[0023] Figure 4 for Figure 1 An exploded diagram of the connection between the steel column and the steel beam;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure of the auxiliary installation device;

[0025] Figure 6 for Figure 1 A schematic diagram of the top view of the auxiliary installation device in FIG.

[0026] Figure numerals: 1. steel column; 2. steel beam; 201. mounting hole a; 3. connecting plate; 301. mounting hole b; 4. auxiliary mounting device; 401. support plate; 402. telescopic column; 4021. fixed column; 4022. movable column; 403. spring; 404. bearing plate; 405. limiting groove; 5. fastener; 501. bolt; 502. nut. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The present invention will be further explained below in conjunction with specific implementation methods.

[0031] like Figure 1-6 As shown, the auxiliary installation device for the node of the assembled steel structure provided in this embodiment includes two groups of connecting plates 3 symmetrically welded on the inner wall of one side of the top of the steel column 1, a steel beam 2 is installed between the two connecting plates 3, the steel beam 2 and the connecting plate 3 are connected by fasteners 5, and the bolts 501 in the fasteners 5 are installed by the auxiliary installation device 4; the auxiliary installation device 4 includes a square support plate 401, and the two end surfaces of the support plate 401 body are respectively provided with telescopic columns 402 extending outwards, and the telescopic columns 402 are provided with a bearing plate 404 in the outward extending direction, and the outer end surface of the bearing plate 404 is provided with a plurality of limiting grooves 405. When connecting the node between the steel column and the steel beam, the bolt head is placed in the limiting groove. When hoisting and connecting, the staff applies an external force of inward squeezing to the protrusions of the two bearing plates to compress the telescopic column and the spring, thereby placing the bolt in the steel beam. After the positioning is completed, the external force is released, and multiple sets of locking bolts can be simultaneously passed through the mounting holes a and b by relying on the telescopic column and the rebound force of the spring, so that the positioning of multiple sets of bolts can be completed at one time, and the installation of multiple sets of bolts can be realized at one time. The operation process is simple, which effectively improves the installation efficiency of the prefabricated steel structure.

[0032] In this embodiment, the telescopic column 402 is fixed to the middle of the two inner walls between the support plate 401 and the bearing plate 404. The telescopic column 402 includes a fixed column 4021 with an open end and a movable column 4022. One end of the movable column 4022 body is sleeved on the open end of the fixed column 4021, and the other end of the fixed column 4021 is fixed to the support plate 401. The telescopic column 402 is sleeved on the spring 403, and the two ends of the spring 403 are respectively fixed between the support plate 401 and the bearing plate 404 on the same side. In the natural state, the telescopic column is extended and the spring is in a normal state. The length of the auxiliary installation device, that is, the length between the limit grooves on both sides of the support plate is 3-5mm larger than the length between the inner walls of the two steel beam flanges. After applying external force, the telescopic column is compressed to the shortest, and bolts are placed in the limit grooves on both sides of the auxiliary installation device. At this time, the auxiliary installation device is placed in the steel beam, the support plate is parallel to the steel beam flange, and the bottom of the support plate is against the steel beam web. After positioning, the external force is released, the limit groove is pressed against the inner wall of the steel beam wing plate, and the bolts on the auxiliary mounting device side can pass through the mounting hole a and the mounting hole b, and the bolts are stuck in the limit groove without rotating.

[0033] In this embodiment, the bearing plate 404 is a convex metal sheet, and the protrusion is used to apply external force. A plurality of limit grooves 405 are symmetrically installed on the outer side of the auxiliary installation device 4, that is, the outer side walls of the two bearing plates 404. The limit grooves 405 are hexagonal grooves adapted to the heads of the bolts 501. The convex protrusions facilitate construction personnel to apply external force to compress the spring and the telescopic column. The specifications of the limit grooves are adapted to the hexagonal head of the bolt, and the depth of the limit grooves is 2-3 mm higher than the hexagonal head of the bolt. After the bolts are placed in the limit grooves, it is ensured that the bolts will not fall off the auxiliary installation device.

[0034] In this embodiment, the mounting holes a201 are formed in an array on the steel beam 2, and the mounting holes b301 are formed in an array on the connecting plate 3, and the specifications of the mounting holes a201 and the mounting holes b301 are consistent. The apertures of the mounting holes a and the mounting holes b are the same. Two rows of mounting holes a are arranged on the steel beam, and the two rows of mounting holes a are symmetrical about the web of the steel beam. Each row has 2 to 3 mounting holes a, and the number of limit grooves is the same as the number of mounting holes a in one row. The arrangement of the mounting holes b is the same as that of the mounting holes a. During hoisting, the corresponding hole positions of the mounting holes a and the mounting holes b coincide.

[0035] In this embodiment, the fastener 5 includes a bolt 501 adapted to a nut 502, and the bolt 501 is adapted to the mounting hole a201. The bolt 501 passes through the corresponding mounting hole a201 and the mounting hole b301 on the same side, and the tail of the bolt 501 is threadedly connected to the nut 502. The bolt is installed on the inner wall of the steel beam flange, passes through the steel beam flange and the connecting plate on the same side, and is connected to the bolt set on the outer side of the connecting plate.

[0036] In this embodiment, the steel column 1 and the steel beam 2 are both made of high-strength H-shaped steel. The steel column is set vertically to the ground, and two sets of connecting plates are welded on one side of the top of the steel column. The ends of the two sets of connecting plates are against the web of the steel column, and the sides of the connecting plates are against the inner wall of the steel column wing plate on the same side of the steel plate. When hoisting the steel beam, the steel beam is located between the two connecting plates, and the outer walls of the two steel beam wing plates are against the inner sides of the two connecting plates, and the corresponding holes of the mounting holes a and b are aligned. Afterwards, the bottom of the support plate is against the web of the steel beam, and the center position of the limit groove is at the same horizontal height as the center position of the mounting holes a and b. Move the support plate left and right so that the center position of the bolt is in the same straight line with the center positions of the mounting holes a and b. Release the external force applied to the two bearing plates, and the bolts pass through the mounting holes a and b on both sides of the support plate. The tail of the bolt is threaded with a nut on the outer side of the connecting plate, and the nut is tightened with a wrench.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An auxiliary installation device for a prefabricated steel structure node, characterized in that: The invention comprises two groups of connecting plates (3) symmetrically welded on the inner wall of one side of the top of a steel column (1); a steel beam (2) is installed between the two connecting plates (3); the steel beam (2) and the connecting plate (3) are connected by a fastener (5); the bolts (501) in the fastener (5) are installed by an auxiliary installation device (4); the auxiliary installation device (4) comprises a square support plate (401); the two end surfaces of the support plate (401) body are respectively provided with telescopic columns (402) extending outwards; the telescopic columns (402) are provided with a bearing plate (404) in the direction of outward extension; the outer end surface of the bearing plate (404) is provided with a plurality of limit grooves (405).

2. The auxiliary installation device for use at a node of a prefabricated steel structure according to claim 1, characterized in that: The telescopic column (402) is fixed to the middle of the two inner walls between the support plate (401) and the bearing plate (404).

3. The auxiliary installation device for a prefabricated steel structure node according to claim 2, characterized in that: The telescopic column (402) comprises a fixed column (4021) with an opening at one end and a movable column (4022), one end of the movable column (4022) body is sleeved on the open end of the fixed column (4021), and the other end of the fixed column (4021) is fixed to the support plate (401).

4. The auxiliary installation device for use at a node of a prefabricated steel structure according to claim 3, characterized in that: The telescopic column (402) is sleeved on the spring (403), and two ends of the spring (403) are respectively fixed between the support plate (401) and the bearing plate (404) on the same side.

5. The auxiliary installation device for use at a node of a prefabricated steel structure according to claim 4, characterized in that: The support plate (404) is a convex metal sheet, and the protrusions are used to apply external force.

6. The auxiliary installation device for a node of a prefabricated steel structure according to claim 4, characterized in that: A plurality of limiting grooves (405) are symmetrically installed on the outer side of the auxiliary installation device (4), that is, on the outer side walls of the two bearing plates (404), and the limiting grooves (405) are hexagonal grooves adapted to the heads of the bolts (501).

7. The auxiliary installation device for a prefabricated steel structure node according to claim 1, characterized in that: The mounting holes a (201) are formed in an array on the steel beam (2), and the mounting holes b (301) are formed in an array on the connecting plate (3), and the specifications of the mounting holes a (201) and the mounting holes b (301) are consistent.

8. The auxiliary installation device for use at a node of a prefabricated steel structure according to claim 7, characterized in that: The fastener (5) comprises a bolt (501) adapted to a nut (502), and the bolt (501) is adapted to the mounting hole a (201).

9. The auxiliary installation device for use at a node of a prefabricated steel structure according to claim 8, characterized in that: The bolt (501) passes through the mounting hole a (201) and the mounting hole b (301) on the same side, and the rear end of the bolt (501) is threadedly connected to the nut (502).

10. The auxiliary installation device for a prefabricated steel structure node according to claim 1, characterized in that: The steel column (1) and the steel beam (2) are both high-strength H-shaped steel.

Images