Combined clamp for high bearing prestress

Abstract

The utility model discloses a kind of combined clamps for high bearing prestress, including annular reinforcing member, the side edge of annular reinforcing member front is provided with reinforcing bar locking mechanism, the reinforcing bar locking mechanism includes horizontal adjusting mechanism and clamping mechanism, the horizontal adjusting mechanism includes support block, the side surface of the support block is connected with adjusting screw by opening screw hole thread, one end of the adjusting screw is rotatably connected with pressing plate, the clamping mechanism includes support plate, the top of the front of the support plate is slidably connected with rotating rod by opening arc-shaped sliding slot. The utility model is provided with reinforcing bar locking mechanism, the reinforcing bar that can be effectively fixed to the stretching, also can be clamped adjustment according to the thickness degree of reinforcing bar while being fixed, avoid uneven clamping force to cause skidding or excessive clamping, bring inaccurate prestress application, or clamping strength is too big to cause damage to reinforcing bar surface, increase the service life of reinforcing bar itself.

Description

Technical Field

[0001] This utility model relates to the field of prestressed composite clamps, and in particular to a high-load-bearing prestressed composite clamp. Background Technology

[0002] Prestressed composite clamps play a crucial role in engineering structures, particularly in enhancing their load-bearing capacity and stability. Through optimized design, these clamps can effectively reduce material usage while maintaining high safety performance. Furthermore, their unique structure ensures reliable performance even under complex working conditions, meeting the needs of various scenarios.

[0003] However, the existing high-load prestressed composite clamp still has some problems in practical use: in the process of the composite clamp dealing with the tension of the steel bars to reach the designed stress, different steel bar diameters and strength requirements may cause uneven clamping force, making it difficult to make corresponding adaptive adjustments. This may cause the composite clamp to slip or over-clamp in actual operation. Slipping will lead to inaccurate application of prestress, while over-clamping may damage the surface of the steel bars and reduce the service life of the steel bars. Utility Model Content

[0004] This invention provides a combined clamp for high load-bearing prestressed concrete to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-load-bearing prestressed composite clamp includes a ring-shaped steel bar component, wherein a steel bar locking mechanism is provided at one edge of the front side of the ring-shaped steel bar component, and the steel bar locking mechanism includes a horizontal adjustment mechanism and a clamping mechanism.

[0007] The horizontal adjustment mechanism includes a support block, one side of which is threaded with an adjusting screw through a screw hole, and one end of the adjusting screw is rotatably connected to a pressure plate;

[0008] The clamping mechanism includes a support plate. A rotating rod is slidably connected to the top of the front side of the support plate through an arc-shaped groove. A serrated pressure block is fixedly connected to one end of the rotating rod, and a plug-in post is fixedly connected to one end of the back side of the support plate.

[0009] As a further improvement to this technical solution: one end of the plug-in column is plugged into one side edge of the front of the annular steel bar component through a plug hole, and one end of the front of the support plate is rotatably connected to one end of the rotating rod through a rotating shaft.

[0010] As a further improvement to this technical solution: the inner wall of the annular steel bar member is fixedly connected with an anchor block, and one end of the anchor block is fixedly connected with an anti-corrosion inner lining ring.

[0011] As a further improvement to this technical solution: the lower end of the ring-shaped steel bar component is fixedly connected to a connecting base, and both sides of the connecting base are fixedly connected to a limiting block, and the inner wall of the limiting block is slidably connected to a limiting insert.

[0012] As a further improvement to this technical solution: the lower end of the ring-shaped steel bar component is fixedly connected to a connecting base, and both sides of the connecting base are fixedly connected to a limiting block. The inner wall of the limiting block is slidably connected to a limiting insert, and the top of the surface of the fastening screw is slidably connected to a reinforcing plate.

[0013] As a further improvement to this technical solution: the back of the reinforcing plate is fixedly connected to the front of the connecting base, and a placement groove adapted to the connecting base is provided in the middle of the upper end of the device base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The steel bar locking mechanism can effectively fix the stretched steel bars. While fixing them, the clamping can also be adjusted according to the thickness of the steel bars to avoid uneven clamping force causing slippage or over-clamping, which could lead to inaccurate application of prestress or damage to the surface of the steel bars due to excessive clamping force, thus increasing the service life of the steel bars themselves.

[0016] 2. By setting the serrated clamping blocks, the clamping of the reinforcing bars can effectively increase the friction between the reinforcing bar and the surface of the reinforcing bar, preventing slippage or loosening under high load prestress. In addition, the serrated clamping blocks can closely fit the surface of the reinforcing bars, forming multi-point contact, thereby dispersing the clamping pressure and increasing the clamping contact force.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1This is a schematic diagram of the structure of a high-load-bearing prestressed combined clamp proposed in this utility model;

[0020] Figure 2 This is a schematic diagram showing the disassembled structure of a high-load-bearing prestressed combined clamp proposed in this utility model;

[0021] Figure 3 This is a front view of the steel bar locking mechanism of a high-load-bearing prestressed composite clamp proposed in this utility model.

[0022] Figure 4 This is a side view of the steel bar locking mechanism of a high-load-bearing prestressed composite clamp proposed in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Ring-shaped steel reinforcement members;

[0025] 2. Rebar locking mechanism; 201. Support block; 202. Adjusting screw; 203. Pressure plate; 204. Support plate; 205. Rotating rod; 206. Serrated pressure block; 207. Inserted column;

[0026] 3. Anchor block; 4. Anti-corrosion inner lining ring; 5. Connecting base; 6. Limiting block one; 7. Limiting insert block; 8. Device base; 9. Limiting block two; 10. Fastening screw; 11. Reinforcing plate; 12. Placement groove. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0028] Please see Figures 1-4 In this embodiment of the utility model, a high load-bearing prestressed combined clamp includes a ring-shaped steel bar component 1. A steel bar locking mechanism 2 is provided at one edge of the front side of the ring-shaped steel bar component 1. The steel bar locking mechanism 2 includes a horizontal adjustment mechanism and a clamping mechanism.

[0029] The horizontal adjustment mechanism includes a support block 201. One side of the support block 201 is threadedly connected to an adjusting screw 202 through a screw hole. One end of the adjusting screw 202 is rotatably connected to a pressure plate 203.

[0030] The clamping mechanism includes a support plate 204. A rotating rod 205 is slidably connected to the top of the front side of the support plate 204 through an arc-shaped groove. A serrated pressure block 206 is fixedly connected to one end of the rotating rod 205, and a plug-in post 207 is fixedly connected to one end of the back side of the support plate 204.

[0031] The contact surface of the pressure plate 203 is provided with a rubber pad. When the pressure plate 203 contacts one end of the rotating rod 205 and presses forward, the elastic properties of the rubber pad can absorb pressure changes to a certain extent, thus avoiding damage to the components due to excessive rigid contact.

[0032] The serrated clamping block 206 can effectively increase the friction between the steel bar and the steel bar surface, preventing slippage or loosening under high load prestress. In addition, the serrated clamping block 206 can closely fit the steel bar surface, forming multi-point contact, thereby dispersing the clamping pressure and increasing the clamping contact force.

[0033] Please see Figures 3-4 One end of the plug-in column 207 is plugged into one side edge of the front of the ring steel member 1 through a plug hole, and one end of the front of the support plate 204 is rotatably connected to one end of the rotating rod 205 through a rotating shaft.

[0034] The design of the plug-in post 207 not only facilitates quick installation and disassembly on the ring-shaped steel bar component 1, but also ensures the stability of the steel bar locking mechanism 2 on the ring-shaped steel bar component 1. By adjusting the insertion depth of the plug-in post 207, it can adapt to ring-shaped steel bar components 1 of different thicknesses, thereby improving the versatility of the device.

[0035] The arc-shaped groove on one of the support plates 204 matches the limiting shaft in the middle of the rotating rod 205. While limiting the sliding trajectory of the rotating rod 205, it can also ensure that it remains stable during the sliding process and avoid deviation or jamming due to external interference. The design of the arc-shaped groove not only optimizes the movement path of the rotating rod 205, but also effectively reduces unnecessary friction loss through its precise dimensional fit.

[0036] Please see Figures 1-2 An anchor block 3 is fixedly connected to the inner wall of the ring-shaped steel reinforcement member 1, and an anti-corrosion inner lining ring 4 is fixedly connected to one end of the anchor block 3.

[0037] Anchor blocks 3 are arranged in a ring within the ring steel reinforcement member 1. Their number and spacing are reasonably configured according to the size of the ring steel reinforcement member 1 and the load-bearing requirements to ensure the stability and load-bearing capacity of the overall structure. The connection between anchor blocks 3 and ring steel reinforcement member 1 adopts a high-strength welding process, which further enhances the tensile strength and durability of the connection.

[0038] The anti-corrosion inner lining ring 4 is tightly attached to the inner wall of the ring-shaped steel reinforcement member 1 through the anchor block 3, forming a complete protective system that effectively isolates the steel reinforcement from external environmental corrosion.

[0039] Please see Figures 1-2 The lower end of the ring-shaped steel bar component 1 is fixedly connected to a connecting base 5. Both sides of the connecting base 5 are fixedly connected to limit blocks 6. The inner wall of the limit blocks 6 is slidably connected to limit inserts 7.

[0040] Limiting blocks 6 are distributed on both sides of the connecting base 5. Limiting plugs 7 on the device base 8 are also adapted to fit into limiting blocks 6, ensuring that the fit between limiting plugs 7 and limiting blocks 6 is tight and without gaps. This makes the connection between the device base 8 and the connecting base 5 more stable and reliable, thereby effectively preventing loosening or displacement that may occur during the connection process. The device base 8 achieves quick installation and disassembly through the combination of limiting plugs 7 and connecting base 5.

[0041] Please see Figures 1-2 The lower end of the limiting block 7 is fixedly connected to the device base 8. Limiting blocks 2 9 are fixedly connected to the edges of both sides of the device base 8. The inner wall of the limiting block 2 9 is threadedly connected to the fastening screw 10. The top of the surface of the fastening screw 10 is slidably connected to the reinforcing plate 11.

[0042] Limiting blocks 2 9 are arranged on the side of the device base 8, and the limiting blocks 2 9 are adapted to the fastening screw 10. The reinforcing plate 11 is also connected to the fastening screw 10, making the connection between the device base 8 and the connecting base 5 more stable and further enhancing the load-bearing capacity of the overall structure. The fastening screw 10 pushes the reinforcing plate 11 tightly between the device base 8 and the connecting base 5 by rotation, thereby forming an additional constraint force and effectively dispersing the influence of external loads on the connection part.

[0043] Please see Figures 1-2 The back of the reinforcing plate 11 is fixedly connected to the front of the connecting base 5, and a placement groove 12 adapted to the connecting base 5 is provided in the middle of the upper end of the device base 8.

[0044] The placement groove 12 fits the surface shape of the connecting base 5, enabling precise positioning when the connecting base 5 is connected to the device base 8, reducing offset errors during installation. After the connecting base 5 is embedded in the placement groove 12, its surface fits tightly against the inner wall of the groove, thereby improving the stability and reliability of the overall structure. In addition, this design facilitates quick disassembly and assembly, saving time and costs for maintenance and replacement, while ensuring excellent connection performance under high load conditions.

[0045] The working principle of this utility model is as follows:

[0046] First, the steel bars are stretched. When they are stretched to the required design stress, cement is poured into the annular steel bar component 1. Anchor blocks 3 are arranged in a ring at the inner lining of the annular steel bar component 1. The anti-corrosion inner lining ring 4 is tightly bonded to the annular steel bar component 1 through a special process to form a solid overall structure. The anti-corrosion inner lining ring 4 isolates the steel bars from external environmental corrosion and extends the service life of the anti-corrosion inner lining ring 4. During the cement pouring process, liquid cement fully fills the internal voids of the annular steel bar component 1 until the cement solidifies.

[0047] Next, the rotating adjusting screw 202 rotates in the screw hole opened in the support block 201 until the pressure plate 203 approaches one end of the rotating rod 205, allowing the rotating rod 205 to rotate around the rotating shaft. The limiting shaft set in the middle of the rotating rod 205 slides in the arc groove opened on the support plate 204. The rotating rod 205 fits in the relative direction according to the sliding trajectory of the arc groove until the serrated pressure block 206 clamps and fixes the steel bar.

[0048] Finally, the contact surface between the serrated clamping block 206 and the reinforcing bar is specially treated to increase the coefficient of friction, further improving the stability of the clamping. The entire clamping process is simple to operate and can quickly complete the fixing and release of the reinforcing bar, ensuring safety and reliability under high load conditions.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A high-load-bearing prestressed composite clamp, comprising a ring-shaped steel reinforcement member (1), characterized in that: A steel bar locking mechanism (2) is provided on one side edge of the front of the ring steel bar member (1). The steel bar locking mechanism (2) includes a horizontal adjustment mechanism and a clamping mechanism. The horizontal adjustment mechanism includes a support block (201), one side of which is threaded with an adjusting screw (202) through a screw hole, and one end of the adjusting screw (202) is rotatably connected to a pressure plate (203). The clamping mechanism includes a support plate (204), and a rotating rod (205) is slidably connected to the top of the front side of the support plate (204) through an arc-shaped groove. A serrated pressure block (206) is fixedly connected to one end of the rotating rod (205), and a plug-in post (207) is fixedly connected to one end of the back side of the support plate (204).

2. The combined clamp for high load-bearing prestressing according to claim 1, characterized in that, One end of the plug-in column (207) is plugged into one side edge of the front of the annular steel bar member (1) through a plug hole, and one end of the front of the support plate (204) is rotatably connected to one end of the rotating rod (205) through a rotating shaft.

3. A high-load-bearing prestressed composite clamp according to claim 1, characterized in that, An anchor block (3) is fixedly connected to the inner wall of the ring-shaped steel bar member (1), and an anti-corrosion inner lining ring (4) is fixedly connected to one end of the anchor block (3).

4. A high-load-bearing prestressed composite clamp according to claim 3, characterized in that, The lower end of the ring-shaped steel bar member (1) is fixedly connected to a connecting base (5), and both sides of the connecting base (5) are fixedly connected to a limiting block (6), and the inner wall of the limiting block (6) is slidably connected to a limiting insert (7).

5. A high-load-bearing prestressed composite clamp according to claim 4, characterized in that, The lower end of the limiting plug (7) is fixedly connected to the device base (8). Limiting blocks (9) are fixedly connected to the edges of both sides of the device base (8). The inner wall of the limiting block (9) is threaded with a fastening screw (10). A reinforcing plate (11) is slidably connected to the top of the surface of the fastening screw (10).

6. A high-load-bearing prestressed composite clamp according to claim 5, characterized in that, The back of the reinforcing plate (11) is fixedly connected to the front of the connecting base (5), and the middle of the upper end of the device base (8) is provided with a placement groove (12) that is compatible with the connecting base (5).

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