Column-beam connecting device for fabricated building steel structure

Abstract

The invention relates to the technical field of building structures, in particular to a fabricated building steel structure column-beam connecting device which comprises a steel structure column and a steel beam, a butt joint device is arranged on the surface of the steel structure column, an insertion mounting device is arranged on the back face of the steel beam, and a bearing device is arranged on the surface of the butt joint device. The bearing device comprises a connecting plate piece, a sleeve, a side end connecting plate, an anti-skid connecting pad, an air bag, a conveying air pipe, a connecting plate block, an air pump, a side end limiting frame, an inner hollow box piece, a limiting annular plate, a grip and an inserting bearing column piece. According to the fabricated building steel structure column-beam connecting device, by arranging the bearing device, an insertion bearing column piece is re-inserted into the inner wall of a limiting ring plate, then the insertion bearing column piece is pushed leftwards till a threaded section makes contact with an inner threaded groove of the limiting ring plate, then the insertion bearing column piece is screwed and fixed to the lower portion of a steel beam, and the bearing effect can be achieved; and a bearing assembly can be arranged below the connected steel beams, and when the bearing capacity is large, the bearing assembly is used for supporting, and damage is not prone to occurring.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, and in particular to a prefabricated building steel structure column-beam connecting device. Background Art

[0002] In the field of construction, prefabricated buildings have been increasingly widely used due to their advantages such as high efficiency and environmental protection. Steel structure, as an important structural form of prefabricated buildings, plays a key role in them. Column-beam connection is one of the core links in steel structure prefabricated buildings. As prefabricated buildings develop towards a more efficient, safer and more economical direction, the requirements for column-beam connection devices are also increasing.

[0003] The prior art discloses a construction prefabricated steel structure column-beam connection device with publication number: CN217679707U, which includes a steel structure column body, a connection mechanism, an upper mounting and fixing mechanism, and a lower mounting and fixing mechanism. The connection mechanism is located outside the middle of the steel structure column body, the upper mounting and fixing mechanism is located at the right end of the connection mechanism, and the lower mounting and fixing mechanism is located at the right end of the connection mechanism. The connection mechanism includes a connecting main board and a slide groove. The connecting main board is fixedly installed on the outside of the steel beam, and the slide groove is fixedly arranged at the right end of the middle of the connecting main board. The construction prefabricated steel structure column-beam connection device, through the improvement of the connection mechanism, can be installed on the steel structure more conveniently, greatly saving manpower and material resources, improving work efficiency, and also reducing the requirements for personnel, which promotes the popularization of the construction prefabricated steel structure column-beam connection device.

[0004] The above-mentioned prefabricated building steel structure column-beam connection device improves the connection mechanism so that the building prefabricated steel structure column-beam connection device can be installed on the steel structure more conveniently, but has poor practicality. However, the above-mentioned device relies on bolt connection when connecting, but no supporting component is set under the steel beam after the connection. When the load is large, it is easy to be damaged without the support of the supporting component, and the effect is not good during use. Therefore, it is necessary to design a prefabricated building steel structure column-beam connection device with strong practicality. Summary of the invention

[0005] The object of the present invention is to provide a prefabricated building steel structure column-beam connection device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an assembled building steel structure column-beam connection device, comprising a steel structure column and a steel beam, the surface of the steel structure column is provided with a docking device, the back of the steel beam is provided with an insertion installation device, and the surface of the docking device is provided with a supporting device.

[0007] The supporting device includes a connecting plate, a sleeve, a side connecting plate, an anti-skid connecting pad, an airbag, an air delivery pipe, a connecting plate, an air pump, a side limit frame, an inner hollow box, a limit ring plate, a handle and an inserted supporting column. The connecting plate is fixedly connected to the side of the surface connecting frame, the sleeve is fixedly connected to the surface of the connecting plate, the side connecting plate is fixedly connected to the left and right sides of the front of the sleeve, the airbag is connected to the right side of the anti-skid connecting pad, the air pump is fixedly connected to the right top of the side connecting plate close to the front, the air delivery pipe is fixedly connected to the top of the air pump, and the end of the air delivery pipe away from the top of the air pump is fixedly connected to the top of the airbag. The lengths of the anti-skid connecting pad and the airbag are Greater than the length of the side end connecting plate, the connecting plate block is fixedly connected to the top front side of the side end connecting plate, the side end limiting frame is fixedly connected to the right side of the side end connecting plate, the inner hollow box is fixedly connected to the inside of the side end limiting frame, the limiting ring plate is fixedly connected to the right side of the inner hollow box, a through hole is opened inside the inner hollow box, the diameter of the inserted supporting column is adapted to the diameter of the through hole, the inserted supporting column is slidably connected to the inside of the inner hollow box, a threaded groove is opened on the inner diameter of the limiting ring plate, a small section of threaded part is arranged on the right side of the surface of the inserted supporting column, the threaded part is threadedly connected to the inside of the limiting ring plate, and the handle is fixedly connected to the right side of the inserted supporting column.

[0008] Preferably, the docking device includes a surface connection frame, an elastic friction pad, a bottom plate and an anti-slip friction block, the surface connection frame is fixedly connected to the surface of the steel structure column, the bottom plate is fixedly connected to the inner bottom end of the wedge docking insertion groove, the anti-slip friction block is fixedly connected to the top of the bottom plate, the number of the anti-slip friction blocks is ten, and the ten anti-slip friction blocks are evenly spaced at the inner bottom end of the wedge docking insertion groove.

[0009] Preferably, the insertion and installation device includes an installation trapezoidal wedge block, an insertion elastic compression pad, a mounting bolt, a connecting ring and a base plate, the installation trapezoidal wedge block is inserted into the back side of the steel beam, the insertion elastic compression pad is fixedly connected to the top of the installation trapezoidal wedge block, a threaded slot is provided on the top of the installation trapezoidal wedge block, the base plate is fixedly connected to the top of the steel beam near the back side, the connecting ring is fixedly connected to the top of the base plate, and the mounting bolt is threadedly connected to the inside of the connecting ring.

[0010] Preferably, a placement groove is opened inside the side connecting plate near one end of the steel beam, the anti-slip connection pad is connected to the inner left side of the placement groove, the width of the anti-slip connection pad is adapted to the width of the placement groove, and the airbag is fixedly connected to the inner right side of the placement groove, and the width of the airbag is adapted to the width of the placement groove.

[0011] Preferably, the inner ring of the connecting ring is provided with an internal thread groove, the top of the steel beam is provided with a threaded connection hole with the same aperture as the internal thread groove and the threaded groove hole, and the mounting bolt is threadedly connected to the inside of the threaded groove hole and the threaded connection hole.

[0012] Preferably, a through groove is opened inside the connecting plate, and the aperture of the through groove is adapted to the diameter of the air delivery pipe. The air delivery pipe passes through the connecting plate and is connected to the top of the airbag. The air delivery pipe can supply air and cooperate with the connecting plate to be placed stably to avoid being pressed into the air delivery pipe and affecting the air supply. The air pump is started to cooperate with the air delivery pipe to input gas into the interior of the airbag, and then the airbag is inflated, which can squeeze the anti-slip connecting pad to the left to fit more closely to the side of the steel beam, thereby increasing the connection strength.

[0013] Preferably, a wedge block docking insertion groove is provided inside the surface connection frame, the top area of ​​the wedge block docking insertion groove is a right-angled trapezoid, and the elastic friction pad is fixedly connected to the inner top of the wedge block docking insertion groove.

[0014] Preferably, an insertion groove is opened on the back side of the steel beam, and the area of ​​the insertion groove is adapted to the back area of ​​the mounting trapezoidal wedge block. The mounting trapezoidal wedge blocks of different sizes are docked and installed according to the insertion groove, which can ensure insertion and guarantee connection strength.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The prefabricated building steel structure column-beam connection device is provided with a supporting device. The inserted supporting column is reinserted into the inner wall of the limiting ring plate, and then pushed to the left until the thread section contacts the inner thread groove of the limiting ring plate, and then twisted. The inserted supporting column is fixed under the steel beam to play a supporting role. A supporting component can be arranged under the steel beam after the connection. When the load is large, the supporting component is provided for support and is not easily damaged.

[0017] 2. The prefabricated building steel structure column-beam connection device is provided with a docking device, and the installation trapezoidal wedge block is aligned with the insertion groove inside the surface connection frame, and then inserted into the interior of the surface connection frame. When inserted, the installation trapezoidal wedge block will fit the bottom of the elastic friction pad and the top of the anti-slip friction block and slide inward. The anti-slip friction block increases the friction force, and after insertion, it is tightly connected and is not easy to fall off and affect use.

[0018] 3. The prefabricated building steel structure column-beam connection device is provided with an insertion installation device. The installation bolt is screwed into the interior of the connecting ring and then screwed downward until the installation bolt is screwed into the interior of the installation trapezoidal wedge to install the installation trapezoidal wedge. Due to the special shapes of the insertion groove and the wedge, they can be closely matched, and the weight of the beam can be supported in the vertical direction, and the displacement of the beam in the horizontal direction can be effectively prevented. Through the cooperation of the wedge and the slot, good shear and compression resistance can be provided to ensure the stability of the column-beam connection. The installation trapezoidal wedges of different sizes can be installed according to the insertion groove to ensure insertion and connection strength. The setting of inserting the elastic extrusion pad plays a role in positioning, and after being inserted into the slot, it contacts the bottom of the elastic friction pad and can be deformed by extrusion. The resilience of the deformation reset can also help fix, further increasing the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the steel beam, the insertion and installation device and the supporting device of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0024] Figure 5 It is a schematic diagram of the overall side view structure of the present invention;

[0025] Figure 6 It is a side structural schematic diagram of the steel beam, the insertion and installation device and the supporting device of the present invention.

[0026] In the figure: 1. Steel structure column; 2. Docking device; 201. Surface connection frame; 202. Elastic friction pad; 203. Bottom plate; 204. Anti-skid friction block; 3. Insertion installation device; 301. Install trapezoidal wedge block; 302. Insert elastic extrusion pad; 303. Install bolt; 304. Connecting ring; 305. Bottom plate; 4. Supporting device; 401. Connecting plate; 402. Sleeve; 403. Side connecting plate; 404. Anti-skid connecting pad; 405. Air bag; 406. Air delivery pipe; 407. Connecting plate; 408. Air pump; 409. Side limit frame; 410. Inner hollow box; 411. Limiting ring plate; 412. Handle; 413. Insert supporting column; 5. Steel beam. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1-6 , the present invention provides the following technical solutions:

[0030] A prefabricated building steel structure column and beam connection device comprises a steel structure column 1 and a steel beam 5, wherein a docking device 2 is arranged on the surface of the steel structure column 1, an insertion installation device 3 is arranged on the back of the steel beam 5, and a supporting device 4 is arranged on the surface of the docking device 2.

[0031] The supporting device 4 includes a connecting plate 401, a sleeve 402, a side connecting plate 403, an anti-skid connecting pad 404, an air bag 405, an air delivery pipe 406, a connecting plate 407, an air pump 408, a side limit frame 409, an inner hollow box 410, a limit ring plate 411, a handle 412 and an inserted supporting column 413. The connecting plate 401 is fixedly connected to the side of the surface connecting frame 201, the sleeve 402 is fixedly connected to the surface of the connecting plate 401, the side connecting plate 403 is fixedly connected to the left and right sides of the front of the sleeve 402, the air bag 405 is connected to the right side of the anti-skid connecting pad 404, and the air pump 408 is fixedly connected to the side connecting The top right side of the connecting plate 403 is close to the front, the air delivery pipe 406 is fixedly connected to the top of the air pump 408, and the end of the air delivery pipe 406 away from the top of the air pump 408 is fixedly connected to the top of the airbag 405. The lengths of the anti-slip connecting pad 404 and the airbag 405 are both greater than the length of the side end connecting plate 403. The connecting plate 407 is fixedly connected to the top front of the side end connecting plate 403, the side end limiting frame 409 is fixedly connected to the right side of the side end connecting plate 403, the inner hollow box 410 is fixedly connected to the inside of the side end limiting frame 409, the limiting ring plate 411 is fixedly connected to the right side of the inner hollow box 410, and the inner hollow box 410 is opened There is a through hole, the diameter of the inserted supporting column 413 is adapted to the diameter of the through hole, the inserted supporting column 413 is slidably connected to the inside of the inner hollow box 410, the inner diameter of the limiting ring plate 411 is provided with a threaded groove, a small section of threaded member is arranged on the right side of the surface of the inserted supporting column 413, the threaded member is threadedly connected to the inside of the limiting ring plate 411, the handle 412 is fixedly connected to the right side of the inserted supporting column 413, the inside of the side connecting plate 403 is provided with a placement groove near one end of the steel beam 5, the anti-skid connecting pad 404 is connected to the inner left side of the placement groove, the width of the anti-skid connecting pad 404 is adapted to the width of the placement groove, the airbag 405 is fixedly connected to the placement On the right side of the inner part of the groove, the width of the airbag 405 is adapted to the width of the placement groove, and a through groove is opened inside the connecting plate 407. The aperture of the through groove is adapted to the diameter of the delivery air pipe 406. The delivery air pipe 406 passes through the connecting plate 407 and is connected to the top of the airbag 405. The delivery air pipe 406 can supply air and cooperate with the connecting plate 407 to be placed stably to avoid the situation where the delivery air pipe 406 is pressed and affects the air supply. Start the air pump 408 to cooperate with the delivery air pipe 406 to input gas into the interior of the airbag 405, and then the airbag 405 is inflated, which can squeeze the anti-slip connecting pad 404 to the left and fit more closely to the side of the steel beam 5, thereby increasing the connection strength.

[0032] The docking device 2 includes a surface connection frame 201, an elastic friction pad 202, a bottom plate 203 and an anti-slip friction block 204. The surface connection frame 201 is fixedly connected to the surface of the steel structure column 1, the bottom plate 203 is fixedly connected to the inner bottom end of the wedge docking insertion groove, and the anti-slip friction block 204 is fixedly connected to the top of the bottom plate 203. The number of anti-slip friction blocks 204 is ten, and the ten anti-slip friction blocks 204 are evenly spaced at the inner bottom end of the wedge docking insertion groove. A wedge docking insertion groove is opened inside the surface connection frame 201, and the top area of ​​the wedge docking insertion groove is a right-angled trapezoid. The elastic friction pad 202 is fixedly connected to the inner top end of the wedge docking insertion groove.

[0033] The insertion installation device 3 includes an installation trapezoidal wedge block 301, an insertion elastic extrusion pad 302, an installation bolt 303, a connecting ring 304 and a bottom plate 305. The installation trapezoidal wedge block 301 is inserted into the back of the steel beam 5, the insertion elastic extrusion pad 302 is fixedly connected to the top of the installation trapezoidal wedge block 301, a threaded slot hole is opened on the top of the installation trapezoidal wedge block 301, the bottom plate 305 is fixedly connected to the top of the steel beam 5 near the back, the connecting ring 304 is fixedly connected to the top of the bottom plate 305, and the installation bolt 303 is fixedly connected to the top of the bottom plate 305. 03 is threadedly connected to the inside of the connecting ring 304, and an insertion groove is provided on the back of the steel beam 5. The area of ​​the insertion groove is adapted to the back area of ​​the mounting trapezoidal wedge block 301. The mounting trapezoidal wedge blocks 301 of different sizes are installed according to the insertion groove, which can ensure the insertion and connection strength. The inner circle of the connecting ring 304 is provided with an internal thread groove, and the top of the steel beam 5 is provided with a threaded connection hole with the same aperture as the internal thread groove and the threaded groove hole. The mounting bolt 303 is threadedly connected to the inside of the threaded groove hole and the threaded connection hole.

[0034] When in use, surface connection frames 201 are arranged at equal intervals on the surface of the steel structure column 1, which are used for docking and installing trapezoidal wedge blocks 301 so as to install the front steel beam 5 on the surface of the steel structure column 1. When installing, align the installing trapezoidal wedge blocks 301 with the insertion groove inside the surface connection frame 201, and then insert them into the inside of the surface connection frame 201. When inserting, the installing trapezoidal wedge blocks 301 will fit the bottom of the elastic friction pad 202 and the top of the anti-skid friction block 204 and slide inward. The anti-skid friction block 204 increases the friction force. After insertion, it is tightly connected and not easy to fall off and affect the use. Before inserting the installing trapezoidal wedge blocks 301, the installing trapezoidal wedge blocks 301 need to be fixedly installed with the steel beam 5. At this time, the bottom plate 305 and the connecting ring 304 are needed. During installation, align the front of the trapezoidal wedge block 301 with the back of the steel beam 5, and then insert it until the internal thread groove inside the connecting ring 304 is aligned with the threaded groove hole on the top of the trapezoidal wedge block 301, and at this time, the back of the inserted elastic extrusion pad 302 just contacts the front of the steel beam 5, which is used to control the insertion depth, and then screw the mounting bolt 303 into the inside of the connecting ring 304 and then screw it downward until the mounting bolt 303 is screwed into the inside of the trapezoidal wedge block 301, and install the trapezoidal wedge block 301. Due to the special shape of the insertion groove and the wedge block, they will have a close fit, which can bear the weight of the beam in the vertical direction and effectively prevent the beam from moving in the horizontal direction. Through the cooperation of the wedge block and the slot, a good The shear and compression resistance can ensure the stability of the column-beam connection, and the installation trapezoidal wedge blocks 301 of different sizes can be installed according to the insertion groove, which can ensure the insertion and connection strength. The setting of the inserted elastic extrusion pad 302 plays a positioning role, and after being inserted into the slot, it contacts the bottom of the elastic friction pad 202 and can be deformed by extrusion. The rebound force of the deformation reset can also help fix it, further increasing the connection strength. A supporting device 4 is provided on the side of the insertion installation device 3. When in use, the steel beam 5 can be lifted and lowered in accordance with the side of the anti-slip connection pad 404 during the lifting and sliding process before alignment. Only the numerical position needs to be aligned. The horizontal direction can be directly set and then lifted to the docking height and then inserted. The air pump can be started when it is moved to the docking position 408 cooperates with the air delivery pipe 406 to input gas into the interior of the airbag 405, and then the airbag 405 is inflated, which can squeeze the anti-skid connection pad 404 to the left and fit more tightly to the side of the steel beam 5, thereby increasing the connection strength, and a side end limit frame 409, an inner hollow box 410, an inserted supporting column 413 and a handle 412 are arranged on the side. When the steel beam 5 needs to be raised or lowered during use, the handle 412 can be first held and then rotated to separate the threaded section from the limiting ring plate 411, and then pulled out, so that the limiting barrier effect is small. After the trapezoidal wedge block 301 is installed and inserted, the inserted supporting column 413 can be reinserted into the inner wall of the limiting ring plate 411, and then pushed to the left until the threaded section contacts the inner thread groove of the limiting ring plate 411, and then twisted.Inserting the supporting column 413 and fixing it under the steel beam 5 can play a supporting role. After the connection, a supporting component can be set under the steel beam. When the load is large, the supporting component is not easy to be damaged, and the effect is good during use.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building steel structure column-beam connection device, comprising a steel structure column (1) and a steel beam (5), characterized in that: The surface of the steel structure column (1) is provided with a docking device (2), the back of the steel beam (5) is provided with an insertion installation device (3), and the surface of the docking device (2) is provided with a supporting device (4); The supporting device (4) comprises a connecting plate (401), a sleeve (402), a side connecting plate (403), an anti-skid connecting pad (404), an air bag (405), an air delivery pipe (406), a connecting plate (407), an air pump (408), a side limiting frame (409), an inner hollow box (410), a limiting ring plate (411), a handle (412) and an inserted supporting column (413). The connecting plate (401) is fixedly connected to the side of the surface connecting frame (201). The sleeve (402) is fixedly connected to the surface of the connecting plate (401), the side connecting plate (403) is fixedly connected to the left and right sides of the front of the sleeve (402), the airbag (405) is connected to the right side of the anti-slip connecting pad (404), the air pump (408) is fixedly connected to the top of the right side of the side connecting plate (403) close to the front, the air delivery pipe (406) is fixedly connected to the top of the air pump (408), and the end of the air delivery pipe (406) away from the top of the air pump (408) is fixedly connected to the airbag The top of the side connecting plate (405) is fixedly connected to the top of the side connecting plate (403), the length of the anti-slip connection pad (404) and the airbag (405) are both greater than the length of the side connecting plate (403), the connecting plate (407) is fixedly connected to the top front of the side connecting plate (403), the side limiting frame (409) is fixedly connected to the right side of the side connecting plate (403), the inner hollow box (410) is fixedly connected to the inside of the side limiting frame (409), and the limiting ring plate (411) is fixedly connected to the right side of the inner hollow box (410). A through hole is provided inside the inner hollow box (410), the diameter of the inserted supporting column (413) is matched with the diameter of the through hole, the inserted supporting column (413) is slidably connected to the inside of the inner hollow box (410), a threaded groove is provided on the inner diameter of the limiting ring plate (411), a threaded component is provided on the right side of the surface of the inserted supporting column (413), and the threaded component is threadedly connected to the inside of the limiting ring plate (411), and the handle (412) is fixedly connected to the right side of the inserted supporting column (413).

2. The assembly type building steel structure column-beam connection device according to claim 1, characterized in that: The docking device (2) comprises a surface connection frame (201), an elastic friction pad (202), a bottom plate (203) and an anti-skid friction block (204); the surface connection frame (201) is fixedly connected to the surface of the steel structure column (1); the bottom plate (203) is fixedly connected to the inner bottom end of the wedge block docking insertion groove; the anti-skid friction block (204) is fixedly connected to the top of the bottom plate (203); the number of the anti-skid friction blocks (204) is ten, and the ten anti-skid friction blocks (204) are evenly spaced and distributed at the inner bottom end of the wedge block docking insertion groove.

3. The assembly type building steel structure column beam connection device according to claim 2, characterized in that: The insertion installation device (3) comprises an installation trapezoidal wedge block (301), an insertion elastic compression pad (302), an installation bolt (303), a connecting ring (304) and a bottom plate (305); the installation trapezoidal wedge block (301) is inserted into the back of the steel beam (5); the insertion elastic compression pad (302) is fixedly connected to the top of the installation trapezoidal wedge block (301); a threaded slot hole is provided on the top of the installation trapezoidal wedge block (301); the bottom plate (305) is fixedly connected to the top of the steel beam (5) near the back; the connecting ring (304) is fixedly connected to the top of the bottom plate (305); and the installation bolt (303) is threadedly connected to the inside of the connecting ring (304).

4. The assembly type building steel structure column beam connection device according to claim 3, characterized in that: A placement groove is provided inside the side end connecting plate (403) near one end of the steel beam (5); the anti-skid connection pad (404) is connected to the inner left side of the placement groove; the width of the anti-skid connection pad (404) is adapted to the width of the placement groove; the airbag (405) is fixedly connected to the inner right side of the placement groove; the width of the airbag (405) is adapted to the width of the placement groove.

5. The assembly type building steel structure column-beam connection device according to claim 4, characterized in that: The inner ring of the connecting ring (304) is provided with an internal thread groove, the top of the steel beam (5) is provided with a threaded connection hole with the same diameter as the internal thread groove and the threaded groove hole, and the mounting bolt (303) is threadedly connected to the inside of the threaded groove hole and the threaded connection hole.

6. The assembly type building steel structure column beam connection device according to claim 5, characterized in that: The connecting plate (407) is provided with a through groove inside, the aperture of which matches the diameter of the air delivery pipe (406), and the air delivery pipe (406) passes through the connecting plate (407) and is connected to the top of the air bag (405).

7. The assembly type building steel structure column-beam connection device according to claim 6, characterized in that: A wedge block butt insertion groove is provided inside the surface connection frame (201), the top area of ​​the wedge block butt insertion groove is a right-angled trapezoid, and the elastic friction pad (202) is fixedly connected to the inner top of the wedge block butt insertion groove.

8. The assembly type building steel structure column-beam connection device according to claim 7, characterized in that: An insertion groove is provided on the back of the steel beam (5), and the area of ​​the insertion groove is adapted to the back area of ​​the mounting trapezoidal wedge block (301).

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