Safety type steel structure node component
By introducing a combination design of damping rods, bolts, and nuts into the steel structure nodes, the problems of bolt loosening and breakage are solved, and a stable connection is achieved under vibration and thermal expansion and contraction conditions, thereby improving the overall strength and seismic performance of the steel structure.
Patent Information
- Application Number
- CN202520023254.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The bolts of existing steel structure nodes are prone to loosening during vibration, and the risk of bolt breakage due to thermal expansion and contraction of metal is high, affecting the stability and strength of the nodes.
The design employs a combination of damping rods, bolts, and nuts. The compression and expansion of the damping rods automatically compensate for the fixing strength of the bolts and nuts, preventing loosening and breakage. The cooperation of guide grooves and positioning grooves ensures a stable connection.
To maintain the fixing strength of bolts and nuts during steel structure vibration, prevent loosening, and avoid bolt breakage during thermal expansion and contraction, thus ensuring the overall strength and stability of the steel structure.
Smart Images

Figure CN223824339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure nodes, specifically to a safety-type steel structure node component. Background Technology
[0002] A node is a physical concept or engineering term that refers to the physical connection area between two segments in an actual structure. In steel structures, a node typically refers to the area where two or more components are connected. A structure composed of multiple nodes is usually called a steel structure. Steel structures are widely used in industries such as industrial plants, municipal infrastructure construction, cultural and sports facilities, power, bridges, offshore oil engineering, and aerospace due to their comprehensive advantages such as high strength, light weight, good seismic performance, and short construction period.
[0003] A search revealed a utility model patent with publication number CN215630640U, specifically disclosing a steel structure node, relating to the field of steel structure technology. This steel structure node includes an H-shaped steel column and an H-shaped steel beam, with the H-shaped steel beam penetrating the H-shaped steel column. The H-shaped steel column and H-shaped steel beam are fixed together by bolts. A box-shaped reinforcing plate is installed through the H-shaped steel column, and the H-shaped steel beam passes through the box-shaped reinforcing plate. This steel structure node integrates a one-piece steel structure connecting component with reinforcing ribs, which is then installed through the steel column. Installers can choose to pre-install the steel structure connecting component on the beam or steel column before subsequent installation, significantly reducing the installation time of the steel structure components. The one-piece design also improves the strength of the connecting component.
[0004] In the use of existing steel structure nodes, since the steel structure is the main load-bearing body, but the nodes are fixed with bolts, when the main steel structure is subjected to impact and vibration, the bolts may loosen during the shaking, which may cause the steel structure node to disintegrate. In addition, due to the thermal expansion and contraction effect of metal, the fixing bolts are prone to breakage under the action of thermal expansion and contraction, thus affecting the use of the node.
[0005] Therefore, it is necessary to invent a safe steel structure node component to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a safe steel structure node component. During the tightening process of bolts and nuts, the damping rod is compressed. When the steel structure shakes as a whole, the expansion and contraction of the damping rod automatically compensates to ensure the fixing strength of the bolts and nuts. This solves the problems in the prior art where bolts and nuts may loosen during steel structure vibration and the risk of bolt breakage due to thermal expansion and contraction of metal.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a safe steel structure node component, including an L-shaped connection node, wherein four sets of fixing holes are symmetrically opened on one side of the L-shaped connection node, and the structure of the four sets of fixing holes is also opened on the other side of the L-shaped connection node; a steel beam is attached to one side of the L-shaped connection node, and fixing holes are opened at the four corners of one side of the steel beam, and the fixing holes are at the same horizontal position as the corresponding fixing holes.
[0008] The fixing assembly between the L-shaped connection node and the steel beam includes four sets of docking cylinders. The four sets of docking cylinders are fitted together on one side of the corresponding fixing hole two. The upper limit of the docking cylinder is sleeved with a sleeve, and several sets of damping rods are installed in a ring between the sleeve and the docking cylinder. Bolts are connected through the sleeve and the docking cylinder, and the bolts are simultaneously connected through the fixing hole one and the fixing hole two.
[0009] Preferably, the fixing component further includes a guide groove, which is symmetrically opened on one side of the L-shaped connection node. A guide block is engaged in the guide groove, and the guide block is fixedly connected to the surface of the steel beam.
[0010] Preferably, each set of fixing holes on one side of the steel beam is provided with positioning grooves arranged in a ring around its perimeter, and positioning blocks are installed in a ring on one side of the four sets of docking cylinders, with the positioning blocks being inserted into the corresponding positioning grooves.
[0011] Preferably, the positioning block is fitted with an anti-slip washer, and the two sides of the anti-slip washer are respectively attached to the connecting cylinder and the steel beam.
[0012] Preferably, the bolt is fitted with a second anti-slip washer, and the two sides of the second anti-slip washer are respectively attached to the bolt and the sleeve.
[0013] Preferably, an anti-slip washer three is fitted onto the side of the bolt away from the anti-slip washer two, and a nut is screwed onto the side of the bolt away from the anti-slip washer two, with the L-shaped connection node of the anti-slip washer two and the nut fitting together.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] During the tightening process, the bolts and nuts cause the sleeve to slide along the connecting sleeve, thereby compressing the damping rod. When the steel structure vibrates as a whole, this structure ensures that the bolts and nuts at the steel joints will not loosen. Even if loosening occurs, the damping rod's extensibility will automatically compensate to maintain the fixing strength of the bolts and nuts. Furthermore, its extensibility ensures that the bolts will not break when the metal expands and contracts due to heat, thus guaranteeing the strength of the entire steel structure. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the L-shaped connection node planing structure of this utility model;
[0019] Figure 3 This is an exploded structural diagram of the connecting cylinder and bolt of this utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of the L-shaped connection node of this utility model;
[0021] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0022] Explanation of reference numerals in the attached figures:
[0023] 001, L-shaped connection node; 101, Fixing hole one; 102, Steel beam; 103, Fixing hole two; 002, Fixing component; 201, Guide groove; 202, Guide block; 203, Positioning groove; 204, Connecting cylinder; 205, Positioning block; 206, Anti-slip washer one; 207, Sleeve; 208, Damping rod; 209, Bolt; 210, Anti-slip washer two; 211, Anti-slip washer three; 212, Nut. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model provides, for example Figures 1-5 The safety steel structure node component shown includes an L-shaped connection node 001. Four sets of fixing holes 101 are symmetrically opened on one side of the L-shaped connection node 001, and the structure of the four sets of fixing holes 101 is also opened on the other side of the L-shaped connection node 001. A steel beam 102 is attached to one side of the L-shaped connection node 001. Fixing holes 2 103 are opened at the four corners of one side of the steel beam 102, and the fixing holes 2 103 are at the same horizontal position as the corresponding fixing holes 101.
[0026] The fixing assembly 002 between the L-shaped connection node 001 and the steel beam 102 includes four sets of docking cylinders 204. The four sets of docking cylinders 204 are fitted together on one side of the corresponding fixing hole 2 103. The upper limit of the docking cylinder 204 is sleeved with a sleeve 207, and several sets of damping rods 208 are installed in a ring between the sleeve 207 and the docking cylinder 204. Bolts 209 are connected through the sleeve 207 and the docking cylinder 204, and the bolts 209 are simultaneously connected through the fixing hole 1 101 and the fixing hole 2 103.
[0027] The damping rod 208 can keep the sleeve 207 in position on the docking cylinder 204, and the sum of the resistance of the damping rods 208 on the surface of the four docking cylinders 204 is greater than the connection support force required by the steel structure node. The bolt 209 can ensure the connection between the L-shaped connection node 001 and the steel beam 102, and a certain amount of slack needs to be left for the damping rod 208 during installation.
[0028] Furthermore, in the above structure, the fixing component 002 also includes a guide groove 201, which is symmetrically opened on one side of the L-shaped connection node 001. A guide block 202 is engaged in the guide groove 201, and the guide block 202 is fixedly connected to the surface of the steel beam 102.
[0029] The cooperation between guide block 202 and guide groove 201 makes it easier for L-shaped connection node 001 to cooperate with steel beam 102.
[0030] Furthermore, in the above structure, each set of fixing holes 103 on one side of the steel beam 102 is provided with positioning grooves 203 arranged in a ring around it, and positioning blocks 205 are installed in a ring on one side of the four sets of docking cylinders 204, and the positioning blocks 205 are inserted into the corresponding positioning grooves 203.
[0031] The positioning block 205 and the positioning groove 203 work together to prevent the docking cylinder 204 from rotating.
[0032] Furthermore, in the above structure, the positioning block 205 is fitted with an anti-slip washer 206, and the two sides of the anti-slip washer 206 are respectively attached to the docking cylinder 204 and the steel beam 102.
[0033] With the cooperation of the anti-slip washer 206, the docking cylinder 204 can be further restricted.
[0034] Furthermore, in the above structure, an anti-slip washer 210 is fitted onto the bolt 209, and the two sides of the anti-slip washer 210 are respectively attached to the bolt 209 and the sleeve 207.
[0035] The anti-slip washer 210 can prevent the bolt 209 from slipping on one side of the sleeve 207.
[0036] Furthermore, in the above structure, an anti-slip washer 211 is sleeved on the side of bolt 209 away from anti-slip washer 210, and a nut 212 is screwed on the side of bolt 209 away from anti-slip washer 210, and the anti-slip washer 210 and nut 212 are fitted together at the L-shaped connection node 001.
[0037] The bolt 209 can be tightened by the nut 212, and the bolt 209 moves into the fixing hole 101 and fixing hole 203 on one side, thereby compressing the damping rod 208. When the damping rod 208 is under force, it can absorb the vibration force when vibration occurs. The anti-slip washer 210 can further ensure the tightness of the nut 212. Even if it loosens, the damping rod 208 will push the sleeve 207 to hold the bolt 209, so that the overall strength of the bolt 209 will not decrease. In addition, the damping rod 208 will also expand and contract accordingly when thermally expanding and contracting, so as to avoid breakage.
[0038] The working principle of this practical application is as follows:
[0039] Refer to the instruction manual appendix Figures 1-5 By moving the guide block 202 on the surface of the steel beam 102 into the guide groove 201, the steel beam 102 is brought into contact with the L-shaped connection node 001. At this time, the fixing hole 101 and the fixing hole 203 are flush. At the same time, the positioning block 205 on one side of the docking cylinder 204 is sleeved with the anti-slip washer 206 and inserted into the positioning groove 203. Then, the bolt 209 is sleeved with the anti-slip washer 210 and inserted into the sleeve 207, the docking cylinder 204, the fixing hole 101 and the fixing hole 203. At the same time, the anti-slip washer 311 is sleeved onto the bolt 209 and the nut 212 is tightened. With continuous tightening, the bolt 209 moves and drives the sleeve 207 to press the damping rod 208. When the steel structure vibrates as a whole, the certain margin reserved by the damping rod 208 can ensure that the vibration is controlled. The damping rod 208 can effectively absorb the vibration, and the anti-slip washer 206 can ensure that the bolt 209 will not rotate. The anti-slip washer 211 can ensure that the nut 212 will not loosen. Even if the nut 212 loosens to a certain extent, the damping rod 208 can extend to ensure the overall strength of the bolt 209. Due to the extensibility of the damping rod 208, the bolt 209 will not break during thermal expansion and contraction. This structure ensures that the bolt 209 and nut 212 will not loosen when the steel joint vibrates as a whole. Even if loosening occurs, the extensibility of the damping rod 208 can ensure the fixing strength of the bolt 209 and nut 212. Furthermore, its extensibility ensures that the bolt 209 will not break during thermal expansion and contraction of the metal, thus ensuring the strength of the entire steel structure.
[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A safety-type steel structure node component, comprising an L-shaped connection node (001), characterized in that: The L-shaped connecting node (001) has four sets of fixing holes (101) symmetrically opened on one side, and the structure of the four sets of fixing holes (101) is also opened on the other side of the L-shaped connecting node (001). A steel beam (102) is attached to one side of the L-shaped connecting node (001), and fixing holes (103) are opened at the four corners of one side of the steel beam (102), and the fixing holes (103) are at the same horizontal position as the corresponding fixing holes (101). The fixing assembly (002) between the L-shaped connecting node (001) and the steel beam (102) includes four sets of docking cylinders (204). The four sets of docking cylinders (204) are fitted together on one side of the corresponding fixing hole two (103). The upper limit of the docking cylinder (204) is fitted with a sleeve (207), and several sets of damping rods (208) are installed in a ring between the sleeve (207) and the docking cylinder (204). Bolts (209) are connected through the sleeve (207) and the docking cylinder (204), and the bolts (209) are simultaneously connected through the fixing hole one (101) and the fixing hole two (103).
2. A safety-type steel structure node component according to claim 1, characterized in that: The fixing component (002) also includes a guide groove (201), which is symmetrically opened on one side of the L-shaped connection node (001). A guide block (202) is engaged in the guide groove (201), and the guide block (202) is fixedly connected to the surface of the steel beam (102).
3. A safety-type steel structure node component according to claim 1, characterized in that: The steel beam (102) has a ring-shaped distribution of positioning grooves (203) around each set of fixing holes (103) on one side. The four sets of docking cylinders (204) have positioning blocks (205) installed in a ring on one side, and the positioning blocks (205) are inserted into the corresponding positioning grooves (203).
4. A safety-type steel structure node component according to claim 3, characterized in that: The positioning block (205) is fitted with an anti-slip washer (206), and the two sides of the anti-slip washer (206) are respectively attached to the docking cylinder (204) and the steel beam (102).
5. A safety-type steel structure node component according to claim 1, characterized in that: The bolt (209) is fitted with an anti-slip washer (210), and the two sides of the anti-slip washer (210) are respectively attached to the bolt (209) and the sleeve (207).
6. A safety-type steel structure node component according to claim 5, characterized in that: The bolt (209) is fitted with an anti-slip washer (211) on the side away from the anti-slip washer (210), and a nut (212) is screwed onto the side of the bolt (209) away from the anti-slip washer (210), and the anti-slip washer (210) and the nut (212) are fitted together at the L-shaped connection node (001).
Citation Information
Patent Citations
Steel structure joint
CN215630640U