A connecting device for a building steel structure

Abstract

The application relates to a connecting device of a building steel structure, which comprises a plurality of steel structures, clamping assemblies arranged on the two sides of the connecting position of the steel structures, clamping plates arranged on the outer sides of the clamping assemblies and protective shells arranged on the outer sides of the clamping plates, and the steel structures, the clamping assemblies and the clamping plates are fixed through connecting bolts; the steel structures are provided with clamping grooves; the clamping assemblies comprise two oppositely arranged clamping plates clamped between the two adjacent steel structures and connecting plates fixed on the two sides of the clamping plates, the connecting plates are provided with clamping strips matched with the clamping grooves, and the outer wall surfaces of the connecting plates are movably connected with the clamping plates; the outer side walls of the clamping plates are fixed with a plurality of limiting blocks; the protective shells comprise first shells and second shells wrapped outside the clamping plates, the first shells and the second shells are provided with sealing strips, sealing grooves and limiting grooves matched with the limiting blocks.

Description

Technical Field

[0001] This invention relates to a connection device for building steel structures, and is applied in the field of building steel structure connection technology. Background Technology

[0002] As is generally known, construction steel can be divided into steel for steel structures and reinforcing steel for reinforced concrete structures. Steel for steel structures mainly includes ordinary carbon structural steel and low alloy structural steel, and its varieties include shaped steel, steel pipes, and reinforcing bars. Shaped steel includes angle steel, I-beams, and channel steel. Reinforcing bars for reinforced concrete structures can be classified according to processing methods as: hot-rolled reinforcing bars, heat-treated reinforcing bars, cold-drawn reinforcing bars, cold-drawn low-carbon steel wire, and steel strand pipes; according to surface shape as: plain reinforcing bars and threaded reinforcing bars; and according to steel type as: low-carbon steel, medium-carbon steel, high-carbon steel, and alloy steel, etc. In my country, steel bars are classified into five grades: I, II, III, IV, and V, based on their strength. Steel used in steel structures mainly includes ordinary carbon structural steel and low-alloy structural steel, with varieties including structural steel sections, steel pipes, and reinforcing bars. Structural steel sections include angle steel, I-beams, and channel steel. During construction, it is necessary to connect various groups of steel structures, requiring a steel structure connection device. Currently, steel structures are typically connected using multiple sets of bolts for fixation, resulting in a complex structure that is difficult to install and disassemble. Furthermore, in rainy weather, the connection structure is prone to rust. Moreover, under prolonged stress, the connection device can cause relative displacement between the connected steel structures, leading to reduced stability and potential safety hazards. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a connection device for building steel structures, which can improve assembly and disassembly efficiency and solve the problems of easy rusting and relative displacement after long-term use.

[0004] The technical solution of the present invention is as follows:

[0005] A connection device for a building steel structure includes several steel structures, engaging components disposed on both sides of the connection points of the steel structures, clamping plates disposed on the outside of the engaging components, and a protective shell disposed on the outside of the clamping plates. The steel structures, engaging components, and clamping plates are fixed together by connecting bolts. The steel structures have slots. The engaging components include two opposing clamping plates that engage between two adjacent steel structures and connecting plates fixed on both sides of the clamping plates. The connecting plates are provided with locking strips adapted to the slots, and the outer wall of the connecting plates is movably connected to the clamping plates. Several limiting blocks are fixed on the outer wall of the clamping plates. The protective shell includes a first shell and a second shell that wrap around the clamping plates. Both the first shell and the second shell are provided with sealing strips, sealing grooves, and limiting grooves adapted to the limiting blocks.

[0006] Several first connection holes are provided on the side walls at both ends of the steel structure. The first connection holes are distributed vertically at equal intervals. A slot is provided on both sides of the first connection hole. The slot is an arc-shaped structure and is symmetrically arranged on both sides of the first connection hole.

[0007] The locking assembly has a locking plate in the middle, which is a "U" shaped structure. Several springs are fixed on one side wall of the locking plate. The springs are set on the inner bottom surface of the "U" shaped structure of the locking plate and are evenly distributed on the side wall surface of the locking plate. Connecting plates are provided on both sides of the opening of the locking plate in a non-removable manner. The connecting plates and the locking plate are an integral structure.

[0008] The structure and curvature of the connecting plate are adapted to the shape of the steel structure end. Two arc-shaped clips are fixed on the side wall of the connecting plate facing the steel structure. The clips are positioned corresponding to the slots. Several third connecting holes are opened between the two symmetrically arranged clips. The third connecting holes correspond one-to-one with the first connecting holes.

[0009] The structure and curvature of the clamping plate are adapted to the exterior of the connecting plate and the clamping plate. At least two limiting blocks are non-removably provided on the outer wall of the clamping plate. The limiting blocks are symmetrically arranged on the outer wall of the clamping plate. The limiting blocks and the clamping plate are integrally connected. Several second connecting holes are provided on the limiting blocks. The second connecting holes penetrate the limiting blocks and the clamping plate. The second connecting holes are connected to the third connecting holes and the first connecting holes and correspond one-to-one.

[0010] The first and second housings have the same structure. The inner walls of the first and second housings are in contact with the outer walls of the clamping plate. A sealing groove is provided at the top of the inner wall of the first housing and a sealing strip is fixed at the bottom of the inner wall of the first housing. A sealing strip is fixed at the top of the inner wall of the second housing and a sealing groove is provided at the bottom of the inner wall of the second housing. Several limiting grooves corresponding to the limiting blocks are provided on the inner walls of both the first and second housings.

[0011] The sealing groove is an arc-shaped groove, and the sealing strip is an arc-shaped strip structure. The sealing groove and the sealing strip are used together.

[0012] Both the first housing and the second housing have side grooves on their end faces for passing through the steel structure, connecting plate and clamping plate. Both the top of the first housing and the bottom of the second housing are provided with latches. Both the bottom of the first housing and the top of the second housing are provided with locking blocks that cooperate with the latches.

[0013] The first connecting hole, the second connecting hole and the third connecting hole are all provided with threads for the connecting bolt to pass through, and the end of the connecting bolt is provided with a nut.

[0014] The present invention has the following beneficial effects:

[0015] 1. This invention, through the provision of a protective shell, clamping plates, locking components, and a steel structure, first aligns two steel structures, then connects the locking plates of the two sets of locking components to the steel structures, engaging the locking strips with the locking slots. Next, a set of clamping plates is attached to the outside of the connecting plate, and connecting bolts are passed through the second, third, and first connecting holes, extending through the entire connecting device to one side. The connecting bolts are then secured with nuts, thereby fixing and pressing the locking components against the clamping plates, and limiting and fixing the steel structures, thus securing the two steel structures. When disassembly of the steel structures is required, the nuts are simply removed, and the connecting bolts are taken out, completing the disassembly of the connecting device and separating the two steel structures. This improves disassembly efficiency and effectively solves the problem of complex structures making disassembly and installation inconvenient.

[0016] 2. Through the protective shell, limiting blocks, limiting grooves, sealing strips, and sealing grooves, after the two steel structures are fixed, the first and second shells are engaged with the limiting blocks on the outside of the clamping plate through several limiting grooves opened inside. The first and second shells are engaged with the steel structure through the side grooves opened at both ends. The first and second shells are placed upside down relative to each other, and the first and second shells are engaged with the sealing strips through the sealing grooves respectively. Moving the locking block makes the locking block engage with the lock, fixing the first and second shells together, thereby wrapping the clamping plate and the engaging assembly inside the protective shell, isolating the clamping plate and the engaging assembly from the outside world. In rainy weather, it can prevent rainwater from entering the clamping plate and the engaging assembly, prevent the internal parts of the connecting device from rusting, improve the service life of the connecting device, reduce rust, facilitate the disassembly of the connecting device, improve the efficiency of use, and effectively solve the problem of easy rusting after long-term use.

[0017] 3. Through the design of clamping plates, connecting plates, locking plates, springs, locking strips, and locking slots, when installing the clamping plates, the length of the spring is greater than the width of the locking plate. The spring extends from the "U"-shaped opening of the locking plate, causing the clamping plate to push the connecting plate against the steel structure by compressing the spring. This allows the locking strip and locking slot to be tightly connected. When the connecting bolts are fixed with nuts, the clamping plates will continuously move closer to the locking components, causing the spring to continuously contract. The elastic potential energy within the spring continuously increases, and the spring's thrust on the locking components also continuously increases, thereby continuously increasing the degree of engagement between the locking slot and the locking strip, ensuring a tight connection between them. When the steel structure is subjected to radial tension during use, the locking slot and locking strip can prevent relative displacement between the two steel structures, improving the stability of the steel structure and effectively solving the problem of relative displacement that easily occurs during long-term use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention without the protective shell installed;

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the locking component and the steel structure in this invention;

[0021] Figure 4 This is a schematic diagram of the locking assembly in this invention;

[0022] Figure 5 This is a schematic diagram of the structure of the first housing in this invention;

[0023] Figure 6 This is a cross-sectional view of the end face of the present invention;

[0024] Figure 7 This is a schematic diagram of the side cross-section structure of the present invention;

[0025] The reference numerals in the figure are as follows:

[0026] 1. Steel structure; 101. Slot; 102. First connecting hole; 2. Protective shell; 201. Locking block; 202. Lock; 203. Side groove; 204. Sealing strip; 205. Sealing groove; 206. Limiting groove; 207. First housing; 208. Second housing; 3. Clamping plate; 301. Limiting block; 302. Second connecting hole; 4. Connecting bolt; 401. Nut; 5. Engaging assembly; 501. Locking plate; 502. Connecting plate; 503. Third connecting hole; 504. Locking strip; 505. Spring. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1 to 7 The aforementioned connection device for a building steel structure includes several steel structures 1, engaging components 5 disposed on both sides of the connection points of the steel structures 1, clamping plates 3 disposed on the outside of the engaging components 5, and a protective shell 2 disposed on the outside of the clamping plates 3. The steel structures 1, engaging components 5, and clamping plates 3 are fixed together by connecting bolts 4. The steel structures 1 are provided with slots 101. The engaging components 5 include two opposing engaging plates 501 that engage between two adjacent steel structures 1 and connecting plates 502 fixed on both sides of the engaging plates 501. The connecting plates 502 are provided with engaging strips 504 that are adapted to the slots 101. The outer wall of the connecting plates 502 is movably connected to the clamping plates 3. Several limiting blocks 301 are fixed on the outer wall of the clamping plates 3. The protective shell 2 includes a first shell 207 and a second shell 208 that wrap around the outside of the clamping plates 3. Both the first shell 207 and the second shell 208 are provided with sealing strips 204, sealing grooves 205, and limiting grooves 206 that are adapted to the limiting blocks 301.

[0029] Several first connecting holes 102 are provided on the side walls at both ends of the steel structure 1. The first connecting holes 102 are vertically and equidistantly distributed. A slot 101 is provided on both sides of the first connecting hole 102. The slot 101 is an arc-shaped structure and is symmetrically arranged on both sides of the first connecting hole 102.

[0030] The locking assembly 5 has a locking plate 501 in the middle position. The locking plate 501 has a "U" shaped structure. Several springs 505 are fixed on one side wall of the locking plate 501. The springs 505 are set on the inner bottom surface of the "U" shaped structure of the locking plate 501 and are evenly distributed on the side wall surface of the locking plate 501. Connecting plates 502 are non-removably provided on both sides of the opening of the locking plate 501. The connecting plates 502 and the locking plate 501 are an integral structure.

[0031] The structure and curvature of the connecting plate 502 are adapted to the shape of the end of the steel structure 1. The connecting plate 502 fits into the steel structure 1, and the connecting plate 501 limits the steel structure 1 so that the two sets of steel structures 1 can be aligned. Two arc-shaped clips 504 are fixed on the side wall of the connecting plate 502 facing the steel structure 1. The clips 504 are positioned corresponding to the slots 101. The slots 101 and the clips 504 are engaged to fix the steel structure 1 and prevent relative displacement of the steel structure 1 after long-term use, so as to avoid affecting the stability of the device. Several third connecting holes 503 are opened between the two symmetrically arranged clips 504. The third connecting holes 503 correspond one-to-one with the first connecting holes 102.

[0032] The structure and curvature of the clamping plate 3 are adapted to the exterior of the connecting plate 502 and the clamping plate 501. At least two limiting blocks 301 are non-removably provided on the outer wall of the clamping plate 3. The limiting blocks 301 are symmetrically arranged on the outer wall of the clamping plate 3. The limiting blocks 301 and the clamping plate 3 are integrally connected. Several second connecting holes 302 are provided on the limiting blocks 301. The second connecting holes 302 penetrate the limiting blocks 301 and the clamping plate 3. The second connecting holes 302 are connected to the third connecting hole 503 and the first connecting hole 102 and correspond one-to-one.

[0033] The first housing 207 and the second housing 208 have the same structure. The inner wall surfaces of the first housing 207 and the second housing 208 are in contact with the outer wall surface of the clamping plate 3. A sealing groove 205 is provided at the top of the inner wall surface of the first housing 207, and a sealing strip 204 is fixed at the bottom of the inner wall surface of the first housing 207. A sealing strip 204 is fixed at the top of the inner wall surface of the second housing 208, and a sealing groove 205 is provided at the bottom of the inner wall surface of the second housing 208. Several limiting grooves 206 corresponding to the limiting block 301 are provided on the inner wall surfaces of the first housing 207 and the second housing 208, so that the protective shell 2 is engaged and connected with the limiting block 301 through multiple sets of limiting grooves 206.

[0034] The sealing groove 205 is an arc-shaped groove, and the sealing strip 204 is an arc-shaped strip structure. The sealing groove 205 and the sealing strip 204 are used together.

[0035] The first housing 207 and the second housing 208 are both provided with side grooves 203 for passing through the steel structure 1, the connecting plate 502 and the clamping plate 3. The top of the first housing 207 and the bottom of the second housing 208 are both provided with latches 202. The bottom of the first housing 207 and the top of the second housing 208 are both provided with locking blocks 201 that cooperate with the latches 202.

[0036] The first connecting hole 102, the second connecting hole 302 and the third connecting hole 503 are all provided with threads for the connecting bolt 4 to pass through, and the end of the connecting bolt 4 is provided with a nut 401.

[0037] Working principle of the invention:

[0038] When using this invention, first, align the two steel structures 1, and then engage the two sets of engaging components 5 with the steel structures 1, so that the "U"-shaped openings of the two engaging components 5 are opposite to each other. The locking strip 504 on the connecting plate 502 engages with the locking groove 101 on the steel structure 1. Then, attach the two clamping plates 3 to the outer wall of the connecting plate 502, and pass the connecting bolt 4 through the second connecting hole 302, the third connecting hole 503, and the first connecting hole 102 in sequence, so that the connecting bolt 4 passes through the entire connecting device and extends to one side of the connecting device. Finally, use the nut 401. The connecting bolts 4 are fixed, thereby fixing and pressing the clamping plate 3 against the entire engaging assembly 5. The engaging assembly 5 limits and fixes the steel structure 1, thus fixing the two steel structures 1. When it is necessary to disassemble the steel structure 1, simply remove the nut 401 and take out the connecting bolts 4 to disassemble the connecting device and separate the two steel structures 1, improving disassembly efficiency. After the two steel structures 1 are fixed, the first housing 207 and the second housing 208 are engaged with the limiting block 301 one by one through several limiting grooves 206 opened inside them. The housing 207 and the second housing 208 are engaged and fixed to the steel structure 1 via side grooves 203 at both ends. The sealing groove 205 at the top of the first housing 207 is connected to the sealing strip 204 at the top of the second housing 208, and the sealing strip 204 at the bottom of the first housing 207 is connected to the sealing groove 205 at the bottom of the second housing 208. This seals the interior of the protective housing 2. The protective housing 2 is preferably made of plastic. Then, the latches 201 at the bottom of the first housing 207 and the top of the second housing 208 are moved to engage with the second housing 208. The bottom of body 208 and the top of the first housing 207 are engaged with the latch 202. The latch block 201 and the latch 202 can connect and fix the protective shell 2, preventing the protective shell 2 from detaching from the outside of the clamping plate 3. This allows the clamping plate 3 and the engaging assembly 5 to be wrapped inside the protective shell 2, isolating the clamping plate 3 and the engaging assembly 5 from the outside world. This ensures that rainwater can be prevented from entering the clamping plate 3 and the engaging assembly 5 in rainy weather, preventing corrosion inside the connecting device, improving the service life of the connecting device, reducing corrosion, facilitating the disassembly of the connecting device, and improving the efficiency of use.When installing the clamping plate 3, the length of the spring 505 is greater than the width of the clamping plate 501. The spring 505 extends from the "U"-shaped opening of the clamping plate 501, causing the clamping plate 3 to press against the spring 505, thereby pushing the connecting plate 502 to fit against the steel structure 1. This ensures a tight connection between the clamping strip 504 and the clamping groove 101. When the connecting bolt 4 is secured with the nut 401, the clamping plate 3 continuously moves closer to the engaging assembly 5, causing the spring 505 to continuously contract. The elastic potential energy within the spring 505 continuously increases, increasing the thrust of the spring 505 on the engaging assembly 5. This further increases the engagement degree between the clamping groove 101 and the clamping strip 504, ensuring a tight connection. When the steel structure 1 is subjected to radial tension during use, the clamping groove 101 and the clamping strip 504 prevent relative displacement between the two steel structures 1, improving the stability of the steel structure 1.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A connection device for a building steel structure, characterized in that: The system includes several steel structures (1), a locking assembly (5) set on both sides of the connection of the steel structures (1), a clamping plate (3) set on the outside of the locking assembly (5), and a protective shell (2) set on the outside of the clamping plate (3). The steel structures (1), the locking assembly (5), and the clamping plate (3) are fixed together by connecting bolts (4). The steel structures (1) are provided with a locking groove (101). The locking assembly (5) includes two opposing locking plates (501) that are locked between two adjacent steel structures (1) and connecting plates (501) fixed on both sides of the locking plates (501). 02), the connecting plate (502) is provided with a card strip (504) that is compatible with the card slot (101), and the outer wall of the connecting plate (502) is movably connected with the clamping plate (3); a number of limiting blocks (301) are fixed on the outer wall of the clamping plate (3); the protective shell (2) includes a first shell (207) and a second shell (208) wrapped around the outside of the clamping plate (3), and both the first shell (207) and the second shell (208) are provided with a sealing strip (204), a sealing groove (205) and a limiting groove (206) that is compatible with the limiting block (301); The locking assembly (5) has a locking plate (501) in the middle position. The locking plate (501) has a "U" shaped structure. Several springs (505) are fixed on one side wall of the locking plate (501). The springs (505) are set on the inner bottom surface of the "U" shaped structure of the locking plate (501). The springs (505) are evenly distributed on the side wall surface of the locking plate (501). Connecting plates (502) are non-removably provided on both sides of the opening of the locking plate (501). The connecting plates (502) and the locking plate (501) are an integral structure. The steel structure (1) has several first connecting holes (102) on the side walls at both ends. The first connecting holes (102) are distributed vertically at equal intervals. The first connecting holes (102) have slots (101) on both sides. The slots (101) are arc-shaped and symmetrically arranged on both sides of the first connecting holes (102). The structure and curvature of the connecting plate (502) are adapted to the shape of the end of the steel structure (1). Two arc-shaped clips (504) are fixed on the side wall of the connecting plate (502) facing the steel structure (1). The clips (504) are positioned corresponding to the slots (101). Several third connecting holes (503) are opened between the two symmetrically arranged clips (504). The third connecting holes (503) correspond one-to-one with the first connecting holes (102).

2. The connection device for a building steel structure as described in claim 1, characterized in that: The structure and curvature of the clamping plate (3) are adapted to the exterior of the connecting plate (502) and the clamping plate (501). At least two limiting blocks (301) are non-removably provided on the outer wall of the clamping plate (3). The limiting blocks (301) are symmetrically arranged on the outer wall of the clamping plate (3). The limiting blocks (301) and the clamping plate (3) are integrally connected. Several second connecting holes (302) are provided on the limiting blocks (301). The second connecting holes (302) penetrate the limiting blocks (301) and the clamping plate (3). The second connecting holes (302) are connected to the third connecting hole (503) and the first connecting hole (102) and correspond one-to-one.

3. The connection device for a building steel structure as described in claim 1, characterized in that: The first housing (207) and the second housing (208) have the same structure. The inner wall surfaces of the first housing (207) and the second housing (208) are in contact with the outer wall surface of the clamp (3). A sealing groove (205) is provided at the top of the inner wall surface of the first housing (207). A sealing strip (204) is fixed at the bottom of the inner wall surface of the first housing (207). A sealing strip (204) is fixed at the top of the inner wall surface of the second housing (208). A sealing groove (205) is provided at the bottom of the inner wall surface of the second housing (208). Several limiting grooves (206) corresponding to the limiting block (301) are provided on the inner wall surfaces of both the first housing (207) and the second housing (208).

4. The connection device for a building steel structure as described in claim 3, characterized in that: The sealing groove (205) is an arc-shaped groove, and the sealing strip (204) is an arc-shaped strip structure. The sealing groove (205) and the sealing strip (204) are used together.

5. A connection device for a building steel structure as described in claim 3, characterized in that: The first housing (207) and the second housing (208) are provided with side grooves (203) for passing through the steel structure (1), the connecting plate (502) and the clamping plate (3). The top of the first housing (207) and the bottom of the second housing (208) are provided with latches (202). The bottom of the first housing (207) and the top of the second housing (208) are provided with locking blocks (201) that cooperate with the latches (202).

6. A connection device for a building steel structure as described in claim 2, characterized in that: The first connecting hole (102), the second connecting hole (302) and the third connecting hole (503) are all provided with threads for passing through the connecting bolt (4), and the end of the connecting bolt (4) is provided with a nut (401).

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