Connecting device for reinforcing steel bar and glass fiber reinforced plastic bar

Abstract

The utility model is applicable to the technical field of constructional engineering, and provides a connecting device for a steel bar and a glass fiber rib, which comprises a first limiting block and a second limiting block which are used for connecting the steel bar and the glass fiber rib and are adjustable in distance, the first screw rod is fixedly installed on the first limiting block, and the second screw rod is hinged to the second limiting block; the assembling plate is arranged on the first screw rod and the second screw rod; the two first screw caps are used for limiting, and the two first screw caps are installed on the corresponding first screw rod and the second screw rod in a threaded mode respectively; and the cushioning and protecting mechanism is used for cushioning and protecting the reinforcing steel bars and the glass fiber ribs and is arranged on the first limiting block, the second limiting block and the assembling plate. According to the connecting device for the reinforcing steel bar and the glass fiber reinforced plastic bar, the problem that the glass fiber reinforced plastic bar and the reinforcing steel bar are not firmly connected in current building construction is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and particularly relates to a connecting device for steel bars and glass fiber bars. Background Technique

[0002] In modern urban construction, as an efficient and precise tunnel boring equipment, shield machines are widely used in the construction of underground projects such as subways and pipe galleries. To ensure the stability and safety of the tunnel structure during the tunneling process of shield machines, especially for the side walls of launching shafts and receiving shafts, it is usually necessary to construct diaphragm walls as support structures to effectively prevent soil collapse and water and soil loss. One of the key technologies in the construction of diaphragm walls lies in the hoisting of steel reinforcement cages and the pouring of concrete. This process directly determines the overall strength and durability of the wall.

[0003] However, in specific application scenarios, such as when a shield machine needs to pass through a diaphragm wall, traditional steel reinforcement materials will hinder the smooth advancement of the shield machine. For this reason, glass fiber bars are introduced as alternative materials in the engineering field. Due to their characteristics such as light weight, high strength, corrosion resistance, and easy cutting, they can continue to provide necessary structural support for the diaphragm wall without affecting the passage of the shield machine. In the actual construction process, the connection problem between glass fiber bars and steel bars has gradually emerged. Due to the differences in physical properties (such as density, elastic modulus, etc.) between glass fiber bars and steel bars, under the action of gravity, the connection between the two is prone to dislocation or loosening. This insecure connection not only reduces the strength of the connection node but may also cause stress concentration during subsequent concrete pouring and use, thereby threatening the overall stability and safety of the diaphragm wall. Traditional connection methods, such as simple binding or welding, often struggle to adapt to the connection difficulties caused by the material property differences between glass fiber bars and steel bars. The binding method is prone to failure under external forces, while welding may damage the glass fiber bars due to high temperature, affecting their mechanical properties. Content of the Utility Model

[0004] The utility model provides a connecting device for steel bars and glass fiber bars, aiming to solve the problem of insecure connection between glass fiber bars and steel bars in current building construction.

[0005] The present utility model is implemented as follows. A connecting device for reinforcing bars and glass fiber bars includes: a first limiting block and a second limiting block for connecting the reinforcing bars and the glass fiber bars with adjustable spacing; a first screw rod and a second screw rod, where the first screw rod is fixedly installed on the first limiting block, and the second screw rod is hinged on the second limiting block; a detachable assembly plate, which is arranged on the first screw rod and the second screw rod; two first nuts for limiting, and the two first nuts are respectively threadedly installed on the corresponding first screw rod and the second screw rod; a cushioning mechanism for cushioning the reinforcing bars and the glass fiber bars, and the cushioning mechanism is arranged on the first limiting block, the second limiting block and the assembly plate.

[0006] Preferably, the cushioning mechanism includes: a first cushion block arranged in the first limiting block and the second limiting block, and the first cushion block is used for cushioning the glass fiber bars; a second cushion block arranged on the assembly plate and detachable, and the second cushion block is used for cushioning the reinforcing bars; a third screw rod fixed on the second cushion block, and the third screw rod penetrates through the assembly plate; a second nut assembled on the third screw rod, and the second nut is used for limiting.

[0007] Preferably, a sliding groove is formed on the first limiting block, and a slidable connecting rod is arranged in the sliding groove, and the top end of the connecting rod is fixedly connected with the second limiting block.

[0008] Preferably, a first mounting hole, a second mounting hole and a mounting groove are formed on the assembly plate, the first mounting hole is adapted to the first screw rod, the second mounting hole is adapted to the third screw rod, and the mounting groove is adapted to the second screw rod.

[0009] Preferably, a limiting plate for covering the mounting groove is arranged on the assembly plate, and a bolt for limiting is arranged on the limiting plate, and the bolt is threadedly connected with the assembly plate.

[0010] Preferably, a pressing block is fixedly installed at the bottom of the limiting plate, and the pressing block is made of rubber and is used for pressing and fixing the second screw rod.

[0011] Preferably, limiting grooves are arranged on both the first cushion block and the second cushion block, and the limiting grooves are adapted to the corresponding first limiting block, second limiting block, first screw rod and second screw rod.

[0012] Compared with the related art, the connecting device for reinforcing bars and glass fiber bars provided by the present utility model has the following beneficial effects:

[0013] By adjusting the distance between the first limiting block and the second limiting block, the device can adapt to steel bars and glass fiber bars with different diameters, improving the adaptability and flexibility of the connection. Through the combined action of the first screw rod and the second screw rod on the assembly plate, and in combination with the limiting effect of the two first nuts, the firmness of the connection is ensured. At the same time, the combination of the third screw rod and the second nut ensures the effective padding and fastening of the second cushion block to the steel bar, further enhancing the stability and reliability of the connection; the first cushion block and the second cushion block are respectively optimized for the physical properties of glass fiber bars and steel bars, providing additional padding effects. Description of the Drawings

[0014] Figure 1 The front view structural schematic diagram of a connecting device for steel bars and glass fiber bars provided by the present utility model;

[0015] Figure 2 The top view structural schematic diagram of the present utility model;

[0016] Figure 3 The disassembled structural schematic diagram of the present utility model;

[0017] Figure 4 The structural schematic diagram of the second cushion block in the present utility model;

[0018] Figure 5 The assembly drawing of the assembly plate and the limiting plate in the present utility model;

[0019] Figure 6 The assembly drawing of the first limiting block, the second limiting block and the connecting rod in the present utility model.

[0020] Reference numerals: 1, first limiting block; 2, second limiting block; 3, first screw rod; 4, second screw rod; 5, assembly plate; 6, first nut; 7, first cushion block; 8, second cushion block; 9, third screw rod; 10, second nut; 11, limiting plate; 12, bolt; 13, pressing block; 14, connecting rod; 15, first mounting hole; 16, second mounting hole; 17, mounting groove; 18, steel bar; 19, glass fiber bar. Detailed Implementation Modes

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0022] As used herein, the reference to "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] An embodiment of the present utility model provides a connecting device for reinforcing bars and glass fiber bars, as Figure 1-6 shown, the connecting device for reinforcing bars and glass fiber bars includes: a first limiting block 1 and a second limiting block 2 for connecting the reinforcing bar 18 and the glass fiber bar 19 with adjustable spacing; a first screw rod 3 and a second screw rod 4, the first screw rod 3 is fixedly installed on the first limiting block 1, and the second screw rod 4 is hinged on the second limiting block 2; a detachable assembly plate 5, the assembly plate 5 is arranged on the first screw rod 3 and the second screw rod 4; two first nuts 6 for limiting, the two first nuts 6 are respectively threadedly installed on the corresponding first screw rod 3 and the second screw rod 4; a cushioning mechanism for cushioning the reinforcing bar 18 and the glass fiber bar 19, the cushioning mechanism is arranged on the first limiting block 1, the second limiting block 2 and the assembly plate 5.

[0024] In this embodiment, the first limiting block 1 and the second limiting block 2 are designed to clamp the reinforcing bar 18 and the glass fiber bar 19 to ensure the stable connection between the two. By adjusting the spacing between the first limiting block 1 and the second limiting block 2, bars of different diameters can be adapted, providing flexibility; the first screw rod 3 is fixedly installed on the first limiting block 1, while the second screw rod 4 is connected to the second limiting block 2 by a hinge. This design allows the second limiting block 2 to remain stable during adjustment, and at the same time, the first screw rod 3 and the second screw rod 4 act together on the assembly plate 5 to ensure the firmness of the connection; the two first nuts 6 are respectively threadedly installed on the first screw rod 3 and the second screw rod 4 for limiting, ensuring that the entire device will not loosen when stressed, providing additional safety; the cushioning mechanism arranged on the first limiting block 1, the second limiting block 2 and the assembly plate 5 is used to cushion the reinforcing bar 18 and the glass fiber bar 19, and at the same time increase the stability of the connection.

[0025] In a further preferred embodiment of the present utility model, the cushioning mechanism includes: a first cushion block 7 arranged in the first limiting block 1 and the second limiting block 2, the first cushion block 7 is used to cushion the glass fiber bar 19; a detachable second cushion block 8 arranged on the assembly plate 5, the second cushion block 8 is used to cushion the reinforcing bar 18; a third screw rod 9 fixed on the second cushion block 8, the third screw rod 9 penetrates through the assembly plate 5; a second nut 10 assembled on the third screw rod 9, the second nut 10 is used for limiting.

[0026] In this embodiment, the first cushion block 7 is arranged inside the first limiting block 1 and the second limiting block 2, and is specifically used for cushioning the glass fiber bars 19. Since the glass fiber bars have more fragile physical properties compared to steel bars, the first cushion block 7 can provide additional protection to prevent the glass fiber bars from being unnecessarily damaged or crushed during the fastening process. The second cushion block 8 is arranged on the assembly plate 5 and is designed to be detachable, facilitating installation and replacement, and is used for cushioning the steel bars 18. Although the steel bars are tougher than the glass fiber bars, the second cushion block 8 can still ensure that the steel bars are evenly supported during the fastening process, avoiding excessive local stress. The third screw 9 is fixed on the second cushion block 8 and penetrates through the assembly plate 5, serving as a medium for connecting and fastening the second cushion block 8 and the assembly plate 5. By rotating the third screw 9, the pressing degree of the second cushion block 8 on the steel bars 18 can be adjusted to ensure the stability of the connection. The second nut 10 is assembled on the third screw 9 for limiting. By tightening the second nut 10, the position of the third screw 9 can be fixed, thereby ensuring that the second cushion block 8 is firmly installed on the assembly plate 5 and effectively cushions and fastens the steel bars 18. The designs of the first cushion block 7 and the second cushion block 8 are optimized according to the physical properties of the glass fiber bars 19 and the steel bars 18 respectively, providing a more precise cushioning effect and reducing the damage to the materials during the fastening process. Through the combination of the third screw 9 and the second nut 10, a reliable connection between the second cushion block 8 and the assembly plate 5 is achieved, thereby enhancing the clamping force and stability of the entire connecting device on the steel bars 18 and the glass fiber bars 19. The second cushion block 8 is designed to be detachable, which not only facilitates adjustment during the installation process but also facilitates maintenance and replacement during subsequent use, improving the practicability and durability of the device. A more stable and reliable connecting device reduces the stress concentration phenomenon that may be caused by an insecure connection, further enhancing the overall stability and safety of the diaphragm wall.

[0027] In a further preferred embodiment of the present utility model, a sliding groove is provided on the first limiting block 1, and a slidable connecting rod 14 is arranged in the sliding groove. The top end of the connecting rod 14 is fixedly connected to the second limiting block 2.

[0028] In this embodiment, the sliding groove is designed to be provided on the first limiting block 1, and the length and width of the sliding groove are determined according to actual needs to allow the connecting rod 14 to slide smoothly therein. The top end of the connecting rod 14 is fixedly connected to the second limiting block 2. In this way, when the connecting rod 14 moves in the sliding groove, it will drive the second limiting block 2 to move synchronously. By sliding the connecting rod 14 in the sliding groove, the distance between the first limiting block 1 and the second limiting block 2 can be conveniently adjusted. This design enables the device to adapt to steel bars 18 and glass fiber bars 19 with different diameters or different installation requirements, improving the flexibility and applicability of the device.

[0029] In a further preferred embodiment of the utility model, a first mounting hole 15, a second mounting hole 16 and a mounting groove 17 are provided on the assembly plate 5, the first mounting hole 15 is adapted to the first screw rod 3, the second mounting hole 16 is adapted to the third screw rod 9, and the mounting groove 17 is adapted to the second screw rod 4.

[0030] In this embodiment, regarding the design of the first mounting hole 15, the second mounting hole 16 and the mounting groove 17 opened on the assembly plate 5, the first mounting hole 15: this hole is adapted to the first screw rod 3, ensuring that the first screw rod 3 can accurately pass through the assembly plate 5 and be fixedly connected to the first limit block 1. This design simplifies the installation process and avoids installation difficulties caused by inaccurate positioning; the second mounting hole 16: this hole is adapted to the third screw rod 9, and is used to firmly install the second cushion block 8 and the third screw rod 9 thereon on the assembly plate 5. By tightening the second nut 10 on the third screw 9, the second pad 8 can effectively cushion and tighten the steel bar 18; the design of the mounting groove 17 allows the second screw 4 to rotate freely and adjust its position on the assembly plate 5, while ensuring that it will not separate from the assembly plate 5 during the tightening process. This design not only ensures the flexibility of the connection, but also improves the stability of the connection; by pre-opening the first mounting hole 15, the second mounting hole 16 and the mounting groove 17 on the assembly plate 5, modular assembly of the connection device is achieved, and the construction personnel only need to install the components according to the corresponding hole positions and slot positions to quickly complete the assembly of the entire connection device.

[0031] In a further preferred embodiment of the utility model, a limiting plate 11 for covering the mounting groove 17 is provided on the assembly plate 5 , and a bolt 12 for limiting is provided on the limiting plate 11 , and the bolt 12 is threadedly connected to the assembly plate 5 .

[0032] In this embodiment, regarding the design of the limit plate 11 and the bolts 12 thereon provided on the assembly plate 5, the limit plate 11 is designed to cover the mounting groove 17 on the assembly plate 5. During the installation process, the limit plate 11 is first placed above the mounting groove 17 and its position is ensured to be accurate. Bolts 12 for limiting are provided on the limit plate 11. These bolts 12 pass through the reserved holes on the limit plate 11 and are threadedly connected with the threaded holes on the assembly plate 5. By rotating the bolts 12, it can be fastened to the assembly plate 5, so that the limit plate 11 is firmly fixed above the mounting groove 17. The installed limit plate 11 can prevent the second screw rod 4 from escaping from the mounting groove 17.

[0033] In a further preferred embodiment of the present invention, a pressing block 13 is fixedly installed at the bottom of the limiting plate 11 , and the pressing block 13 is made of rubber material and is used to press the second screw rod 4 .

[0034] In this embodiment, regarding the design of the rubber material pressing block 13 fixedly installed at the bottom of the limit plate 11, the pressing block 13 is designed to be made of rubber material and is fixedly installed at the bottom of the limit plate 11. When installing the limit plate 11, the pressing block 13 will be placed above the installation groove 17 of the assembly plate 5 accordingly. When the limit plate 11 is fastened to the assembly plate 5 by bolts 12, the pressing block 13 will contact the second screw 4 in the installation groove 17. Since the pressing block 13 is made of rubber material, it has certain elasticity and compressibility, and can generate a certain pressing force during the contact process, which can improve the stability.

[0035] In a further preferred embodiment of the present utility model, the first cushion block 7 and the second cushion block 8 are both provided with limit grooves, and the limit grooves are adapted to the corresponding first limit block 1, second limit block 2, first screw 3 and the second screw 4.

[0036] In this embodiment, the first cushion block 7 and the second cushion block 8 are both designed with limit grooves, and the shapes and sizes of these limit grooves are adapted to the corresponding first limit block 1, second limit block 2, first screw 3 and second screw 4. This means that the limit grooves can precisely accommodate and fix these components, ensuring their stability and accuracy during the connection process.

[0037] In summary, by adjusting the distance between the first limit block 1 and the second limit block 2, the device can adapt to steel bars 18 and glass fiber bars 19 with different diameters, improving the adaptability and flexibility of the connection. Through the combined action of the first screw 3 and the second screw 4 on the assembly plate 5, and in combination with the limiting effect of the two first nuts 6, the firmness of the connection is ensured. At the same time, the combination of the third screw 9 and the second nut 10 ensures the effective cushioning and fastening of the second cushion block 8 to the steel bar 18, further enhancing the stability and reliability of the connection; the first cushion block 7 and the second cushion block 8 are respectively optimized for the physical properties of the glass fiber bar 19 and the steel bar 18, providing additional cushioning effects.

[0038] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. A connecting device for steel bars and glass fiber bars, characterized in that: include: A first limit block and a second limit block for connecting the steel bar and the glass fiber bar with adjustable spacing; A first screw and a second screw, wherein the first screw is fixedly mounted on the first limiting block, and the second screw is hinged on the second limiting block; A detachable assembly plate, the assembly plate being arranged on the first screw rod and the second screw rod; Two first nuts for limiting position, the two first nuts being threadedly mounted on the corresponding first screw rod and the second screw rod respectively; A padding mechanism for padding the steel bars and glass fiber bars, wherein the padding mechanism is arranged on the first limit block, the second limit block and the assembly plate.

2. The connecting device of steel bar and glass fiber bar as claimed in claim 1, characterized in that: The cushion protection mechanism comprises: A first cushion block is arranged inside the first limiting block and the second limiting block, and the first cushion block is used to cushion the glass fiber reinforcement; A detachable second cushion block is disposed on the assembly plate, and the second cushion block is used to cushion the steel bar; a third screw fixed on the second cushion block, wherein the third screw passes through the assembly plate; A second nut is assembled on the third screw rod, and the second nut is used for limiting position.

3. The connecting device of steel bar and glass fiber bar according to claim 1, characterized in that: A sliding groove is provided on the first limiting block, a slidable connecting rod is arranged in the sliding groove, and the top end of the connecting rod is fixedly connected to the second limiting block.

4. The connecting device of steel bar and glass fiber bar as claimed in claim 2, characterized in that: The assembly plate is provided with a first mounting hole, a second mounting hole and a mounting groove, the first mounting hole is matched with the first screw rod, the second mounting hole is matched with the third screw rod, and the mounting groove is matched with the second screw rod.

5. The connecting device of steel bar and glass fiber bar as claimed in claim 4, characterized in that: The assembly plate is provided with a limiting plate for covering the installation groove, and the limiting plate is provided with bolts for limiting, and the bolts are threadedly connected to the assembly plate.

6. The connecting device of steel bar and glass fiber bar as claimed in claim 5, characterized in that: A pressing block is fixedly installed at the bottom of the limiting plate. The pressing block is made of rubber material and is used to press the second screw rod.

7. The connecting device of steel bar and glass fiber bar as claimed in claim 2, characterized in that: The first cushion block and the second cushion block are both provided with limiting grooves, and the limiting grooves are adapted to the corresponding first limiting block, the second limiting block, the first screw rod and the second screw rod.

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