Deformed steel for connecting section steel joints
By using a shaped steel connector with a limit block and spring structure, the stability problem caused by stripped screws is solved, and the stability and easy assembly/disassembly of the shaped steel connector are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGYUN XINMAO STEEL STRUCTURE CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-17
AI Technical Summary
Existing irregular steel connectors are fixed by multiple tapped screws, which may strip after long-term use, affecting stability and making disassembly difficult.
By employing a limit block and spring structure, and through the design of a sliding cavity and a limit groove, the card plate can be automatically engaged and disengaged. Combined with the limit component and magnet fixation, the stability and convenience of the connector are ensured.
The stability and ease of assembly and disassembly of the connectors have been improved, ensuring that the connectors are stable and easy to disassemble after installation.
Smart Images

Figure CN224134920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of profile steel technology, specifically to a special-shaped steel for connecting profile steel joints. Background Technology
[0002] Section steel is a type of strip steel with a specific cross-sectional shape and size, and is one of the four major categories of steel (plates, pipes, sections, and wires). Based on cross-sectional shape, section steel is divided into simple cross-sectional steel and complex cross-sectional steel (special-shaped steel). The former refers to square steel, round steel, flat steel, angle steel, hexagonal steel, etc.; the latter refers to I-beams, channel steel, rails, window frame steel, bent section steel, etc. According to the different smelting quality of the steel, section steel is divided into ordinary section steel and high-quality section steel. Ordinary section steel, according to the current metal product catalog, is further divided into large section steel, medium section steel, and small section steel. Ordinary section steel can also be divided into I-beams, channel steel, angle steel, round steel, etc. In actual operation, section steel needs to be connected and assembled to ensure its length meets actual needs. However, existing connectors are all of uniform size, which reduces their applicability. Furthermore, existing connectors are all fixed welded and cannot be installed or disassembled.
[0003] In the prior art, as disclosed in CN212959410U, a special-shaped steel for connecting steel profile joints is proposed. This technical solution discloses a special-shaped steel for connecting steel profile joints, including a base plate, a first connecting member, a clamping plate, and a second connecting member. The first connecting member is fixedly welded to the upper surface of the base plate, and the second connecting member is provided below the base plate. A groove for installing the clamping plate is formed on the upper surface of the base plate, and an installation groove adapted to the second connecting member is formed on the inner wall of the groove. The installation groove communicates with the groove. One end of the second connecting member is vertically welded to the clamping plate. The second connecting member contains a first reinforcing rib and a second reinforcing rib, which are fixedly connected. Multiple sets of the first and second reinforcing ribs are arranged relatively parallel to each other. The clamping plate contains a third reinforcing rib and a fourth reinforcing rib, which are fixedly connected to each other. This special-shaped steel for connecting steel profile joints is reasonably designed, easy to install, and can meet the needs of enterprises.
[0004] However, in the existing technical solution, the first and second connectors on the special-shaped steel connector need to be fixed by multiple screws. After long-term use, the screws may strip, which will not only affect the stability of the special-shaped steel connector, but also make it impossible to disassemble the special-shaped steel connector normally, thus affecting the normal use of the special-shaped steel connector.
[0005] To address the aforementioned problems, this application proposes a special-shaped steel for connecting steel profile joints. Utility Model Content
[0006] This utility model aims to provide a special-shaped steel for connecting steel joints, mainly to solve the problem that existing special-shaped steel connectors are fixed by multiple screws, and the screws may strip after long-term use. This not only affects the stability of the special-shaped steel connector, but also makes it impossible to disassemble the special-shaped steel connector, thus affecting the normal use of the special-shaped steel connector.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A special-shaped steel for connecting steel profiles includes a base plate, a first connecting member, a clamping plate, and a second connecting member. The top of the base plate has a groove that matches the clamping plate. Both sides of the inner wall of the groove have sliding cavities. A limit block is slidably connected inside the sliding cavity. One side of the limit block extends out of the sliding cavity, and a spring is fixedly connected to the other side. The other end of the spring is fixedly connected to the inner wall of the sliding cavity. Both sides of the clamping plate have limit grooves that match the limit blocks. A sliding rod is fixedly connected to the side of the limit block near the spring. The other end of the sliding rod extends out of the base plate and is rotatably connected to a handle. The sliding rod is slidably connected to the base plate. Limiting components for fixing the handle are provided on both sides of the base plate below the handle.
[0009] The working principle and beneficial effects of this utility model:
[0010] 1. Working Principle: When using the special-shaped steel connector, first pass the end of the second connector away from the clamping plate through the base plate. Then, simultaneously pull the handles on both sides of the base plate. The sliding rod will drive the limiting block into the sliding cavity. Then, the clamping plate will fall into the clamping groove under the action of gravity. At this time, release the handle. The limiting block will pop out under the action of the spring inside the sliding cavity and engage with the limiting grooves on both sides of the clamping plate. The clamping plate can be fixed in the clamping groove. Then, fix the handle with the limiting component. The special-shaped steel connector can be used normally. After releasing the limiting component, simultaneously pull the handles on both sides of the base plate to make the limiting block disengage from the limiting groove. Then, the special-shaped steel connector can be disassembled.
[0011] 2. Beneficial effects: Pass the second connector through the base plate, pull the handles on both sides of the base plate to make the limiting block enter the sliding cavity. The clamping plate will fall into the slot under the action of gravity. After releasing the handle, the limiting block will be engaged with the limiting slot under the action of the spring. Then, the handle is fixed by the limiting component, and the installation of the connector is completed. After releasing the limiting component, pull the handle to make the limiting block disengage from the limiting slot, and the irregular steel connector can be disassembled. This not only makes the disassembly and assembly of the connector more convenient, but also makes the stability of the connector higher after installation.
[0012] Preferably, the limiting component includes fixed blocks on both sides of the base plate, fixedly connected below the handle. Each fixed block has a vertical rod running through it. A pull block is fixedly connected to the lower end of the vertical rod, and an insert block is fixedly connected to the upper end. The bottom of the handle has a slot that matches the insert block. After the locking plate is fixed inside the slot, pushing the pull block upward will cause the insert block to move upward through the vertical rod and insert it into the slot at the bottom of the handle. The outer wall of the insert block and the inner wall of the slot have a certain frictional resistance, thereby fixing the insert block inside the slot, thus completing the installation of the connector. This makes the connector more stable after installation. Pulling the pull block downward will disengage the insert block from the slot. Then, pulling the handle will disengage the limiting block from the limiting groove. Then, rotating the handle will cause it to abut against the fixed block, thereby fixing the handle. Then, the irregular steel connector can be disassembled, making the disassembly of the connector more convenient.
[0013] Preferably, there are multiple springs inside the slide cavity, and the springs are distributed in a linear array at equal intervals inside the slide cavity. By setting the number of springs inside the slide cavity to multiple, multiple springs can exert a greater thrust on the limiting block. This allows the limiting block to have a better fixing effect on the card plate after it is inserted into the limiting groove on the card plate, thereby further improving the stability of the connector during use.
[0014] Preferably, a magnet is fixedly connected to the side of the insert block away from the vertical rod, and an iron plate that attracts the magnet is fixedly connected to the top of the inner wall of the slot. After the pull block is pushed upward to insert the insert block into the slot, the magnet on the insert block will attract the iron plate inside the slot. This can better fix the insert block inside the slot, thereby effectively preventing the insert block from falling out of the slot.
[0015] Preferably, the corner of the limit block extending out of the top of the slide cavity is set as an inclined surface. By setting the corner of the limit block extending out of the top of the slide cavity as an inclined surface, when the operator inserts the card plate into the card slot, the card plate will press the inclined surface of the limit block to make it slide into the slide cavity automatically, without the need for manual pulling of the handle to make the limit block slide into the slide cavity. This makes the installation of the connector more convenient.
[0016] Preferably, the corner at the bottom of the inner wall of the slot is chamfered. By chamfering the corner at the bottom of the inner wall of the slot, it is easier to insert the plug into the slot.
[0017] Preferably, the corners of the handle and the pull block are rounded, and the outer walls of the handle and the pull block are provided with anti-slip texture. By making the corners of the handle and the pull block rounded, it is more comfortable for people to pull the handle and the pull block. The anti-slip texture on the outer walls of the handle and the pull block can effectively increase the friction between people's hands and the handle and the pull block, thereby effectively preventing people from slipping when pulling the handle and the pull block. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the entire utility model;
[0020] Figure 3 This is a top view cross-sectional structural diagram of the base plate of this utility model;
[0021] Figure 4 This is a schematic diagram of the overall structure of the connector after separation.
[0022] Figure 5 This utility model Figure 2 A magnified structural diagram of point A in the middle.
[0023] In the diagram: 1. Base plate; 2. First connector; 3. Card plate; 4. Second connector; 5. Card slot; 6. Sliding cavity; 7. Limiting block; 8. Spring; 9. Limiting groove; 10. Sliding rod; 11. Handle; 12. Fixing block; 13. Vertical rod; 14. Pulling block; 15. Inserting block; 16. Slot; 17. Magnet; 18. Iron sheet. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5A special-shaped steel for connecting steel profiles includes a base plate 1, a first connecting member 2, a clamping plate 3, and a second connecting member 4. The top of the base plate 1 has a groove 5 that matches the clamping plate 3. When using the special-shaped steel connector, the end of the second connecting member 4 furthest from the clamping plate 3 is first passed through the base plate 1. Sliding cavities 6 are formed on both sides of the inner wall of the groove 5. Limiting blocks 7 are slidably connected inside the sliding cavities 6. One side of the limiting block 7 extends out of the sliding cavity 6, and multiple springs 8 are fixedly connected to the other side. The corner at the top of the side of the limiting block 7 extending out of the sliding cavity 6 is sloped. The other end of the spring 8 is fixedly connected to the inner wall of the sliding cavity 6. Limiting grooves 9 that match the limiting blocks 7 are formed on both sides of the clamping plate 3. A sliding rod 10 is fixedly connected to the side of the base plate 1 near the spring 8. The other end of the sliding rod 10 extends out of the base plate 1 and is rotatably connected to the handle 11. The sliding rod 10 is slidably connected to the base plate 1. When the locking plate 3 is pressed into the slot 5, the locking plate 3 will squeeze the inclined surface of the limiting block 7 and make it slide automatically into the sliding cavity 6. After the locking plate 3 is fully inserted into the slot 5, the limiting block 7 will pop out under the action of the spring 8 inside the sliding cavity 6 and engage with the limiting grooves 9 on both sides of the locking plate 3, thus fixing the locking plate 3 inside the slot 5. Limiting components for fixing the handle 11 are provided on both sides of the base plate 1 below the handle 11. The handle 11 can be fixed by the limiting components, which makes the stability of the connector higher after installation.
[0026] like Figure 2 and Figure 5 As shown, the limiting component includes fixing blocks 12 fixedly connected to both sides of the base plate 1 below the handle 11. Vertical rods 13 penetrate each fixing block 12. Pull blocks 14 are fixedly connected to the lower end of each vertical rod 13, and insert blocks 15 are fixedly connected to the upper end. A slot 16 matching the insert block 15 is provided at the bottom of the handle 11. The corner of the bottom of the inner wall of the slot 16 is chamfered. A magnet 17 is fixedly connected to the side of the insert block 15 away from the vertical rod 13. An iron piece 18 attracted to the magnet 17 is fixedly connected to the top of the inner wall of the slot 16. After the locking plate 3 is fixed inside the slot 5, pushing the pull block 14 upwards can move the vertical rod 13. The insert 15 moves upward and inserts into the slot 16 at the bottom of the handle 11. The magnet 17 on the insert 15 attracts the iron piece 18 inside the slot 16, thus fixing the insert 15 inside the slot 16 and completing the installation of the connector. This makes the connector more stable after installation. Pull the pull block 14 downward to disengage the insert 15 from the slot 16. Then pull the handle 11 to disengage the limiting block 7 from the limiting groove 9. Then rotate the handle 11 to make it abut against the fixing block 12 to fix the handle 11. Then the irregular steel connector can be disassembled, which makes the disassembly of the connector more convenient.
[0027] As can be seen from the above, the specific embodiments of this utility model are as follows:
[0028] When using the special-shaped steel connector, first pass the end of the second connector 4 away from the card plate 3 through the base plate 1, press the card plate 3 into the slot 5, and the card plate 3 will press the inclined surface of the limiting block 7 to make it slide automatically into the sliding cavity 6. After the card plate 3 is fully inserted into the slot 5, the limiting block 7 will pop out under the action of the spring 8 inside the sliding cavity 6 and engage with the limiting grooves 9 on both sides of the card plate 3, thus fixing the card plate 3 inside the slot 5. Push the pull block 14 upward, and the vertical rod 13 will drive the insertion block 15 to move upward and insert it into the slot 16 at the bottom of the handle 11. The magnet on the insertion block 15 Iron 17 will attract iron plate 18 inside slot 16, thereby fixing insert 15 inside slot 16, thus completing the installation of connector. This makes the connector more stable after installation. Pull down pull block 14 to disengage insert 15 from inside slot 16, then pull handle 11 to disengage limit block 7 from limit groove 9, and then rotate handle 11 to abut against fixing block 12 to fix handle 11. Then the special steel connector can be disassembled. This not only makes the disassembly and assembly of connector more convenient, but also makes the connector more stable after installation.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A profiled steel for a connected steel joint, comprising a base plate (1), a first connecting piece (2), a clamping plate (3) and a second connecting piece (4), characterized in that, The top of the base plate (1) is provided with a slot (5) that matches the card plate (3). Slide cavities (6) are provided on both sides of the inner wall of the slot (5). A limit block (7) is slidably connected inside the slide cavity (6). One side of the limit block (7) extends out of the slide cavity (6), and a spring (8) is fixedly connected to the other side. The other end of the spring (8) is fixedly connected to the inner wall of the slide cavity (6). Limit grooves (9) that match the limit block (7) are provided on both sides of the card plate (3). A slide rod (10) is fixedly connected to the side of the limit block (7) near the spring (8). The other end of the slide rod (10) extends out of the base plate (1) and is rotatably connected to a handle (11). The slide rod (10) is slidably connected to the base plate (1). Limiting components for fixing the handle (11) are provided on both sides of the base plate (1) below the handle (11).
2. A profiled steel for a connection of a steel joint according to claim 1, characterized in that: The limiting component includes a fixing block (12) fixedly connected to both sides of the base plate (1) below the handle (11). A vertical rod (13) runs through each fixing block (12). A pull block (14) is fixedly connected to the lower end of the vertical rod (13), and an insert block (15) is fixedly connected to the upper end. A slot (16) matching the insert block (15) is provided at the bottom of the handle (11).
3. A profiled steel for a connection of a steel joint according to claim 1, characterized in that: There are multiple springs (8) inside the slide cavity (6), and the springs (8) are distributed in a linear array at equal intervals inside the slide cavity (6).
4. A profile steel according to claim 2, characterized in that: A magnet (17) is fixedly connected to the side of the insert (15) away from the vertical rod (13), and an iron piece (18) that attracts the magnet (17) is fixedly connected to the top of the inner wall of the slot (16).
5. A profiled steel for a connection of a steel joint according to claim 1, characterized in that: The corner of the top side of the limiting block (7) extending out of the sliding cavity (6) is set as an inclined surface.
6. A profiled steel for a connection of a steel joint according to claim 2, characterized in that: The corner at the bottom of the inner wall of the slot (16) is chamfered.
7. A profiled steel for a connection of a steel joint according to claim 2, characterized in that: The corners of the handle (11) and the pull block (14) are rounded, and the outer walls of the handle (11) and the pull block (14) are provided with anti-slip texture.