Anti-loose easily-assembled assembly type prestressed anchorage device

Abstract

The utility model discloses an easily assembled and assembled prestressed anchorage device of anti -loosening, including protection shell, the one end of protection shell surface is provided with the steel bar clamping limiting mechanism, the steel bar clamping limiting mechanism includes clamping mechanism and adjusting mechanism, the adjusting mechanism includes support sliding block, the front of support sliding block is connected with the connecting block no.

Description

Technical Field

[0001] This utility model relates to the field of prestressed anchorages, and in particular to an easy-to-assemble prestressed anchorage that is resistant to loosening. Background Technology

[0002] Prestressed anchors are devices used to lock the tension of prestressed steel bars and permanently transfer it to the concrete structure. They are key components in prestressed technology and require jacks to tension high-strength steel bars or steel strands to achieve the designed tension. In concrete structures, the performance of prestressed anchors directly affects the safety and durability of the entire project.

[0003] However, the existing type of easy-to-assemble prestressed anchor that prevents loosening still has some problems in practical use: After the prestressed anchor is assembled and put into use, the steel bars need to be stretched accordingly. During the process of clamping the steel bars, loosening may occur, which will reduce the prestress transfer effect and affect the stability of the overall structure. In practical applications, this loosening phenomenon may be aggravated by external vibration, causing the clamping force of the anchor to gradually weaken. Utility Model Content

[0004] This invention provides an easy-to-assemble prestressed anchor that prevents loosening, in order 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 loose-resistant, easy-to-assemble prestressed anchor includes a protective shell, one end of which is provided with a rebar clamping and limiting mechanism, the rebar clamping and limiting mechanism including a clamping mechanism and an adjusting mechanism;

[0007] The adjustment mechanism includes a support slider, and a connecting block one is rotatably connected to the front of the support slider via a rotating shaft. A screw is slidably connected to one end of the connecting block one, and a connecting block two is threadedly connected to one end of the screw.

[0008] The clamping mechanism includes a fixing block, which is fixed to one side of the upper end of the protective shell. One end of the fixing block is rotatably connected to a rotating groove rod via a rotating shaft, and one end of the rotating groove rod is fixedly connected to a steel bar clamping plate.

[0009] As a further improvement to this technical solution: the surface of the support slider is slidably connected to the inner wall of the rotating groove rod, and the front of one of the support sliders is rotatably connected to one end of the connecting block two by setting a rotating shaft.

[0010] As a further improvement to this technical solution: the clamping surface of the steel bar clamping plate is provided with a semi-cylindrical groove, and the semi-cylindrical groove is linearly and equidistantly distributed.

[0011] As a further improvement to this technical solution: the protective shell has a fixed plate connected to the middle of both the front and back sides, and one end of the plate is inserted into the anchor shell.

[0012] As a further improvement to this technical solution: a steel bar through hole is provided on one side of the anchor housing, a fixing block two is fixedly connected to the middle of the inner wall of the protective housing, and an inner lining reinforcement bracket is fixedly connected to the back of the fixing block two.

[0013] As a further improvement to this technical solution: both sides of the upper end of the anchor housing are fixedly connected to limit hole blocks, the inner wall of the limit hole block is slidably connected to a support plug, and one side of the support plug is fixedly connected to a steel bar collar.

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

[0015] 1. By setting up the steel bar clamping and limiting mechanism, the stretched steel bar can be basically clamped and limited, ensuring that the steel bar will not loosen or shift during use. The flexibility of clamping also allows steel bars of different diameters to be adapted to the same device, greatly enhancing its versatility and applicability, and playing a key role in preventing the steel bar from loosening and clamping.

[0016] 2. The semi-cylindrical slot of the rebar clamping plate can fit the threads on the surface of the rebar, making the clamping of the rebar more secure and reliable. The semi-cylindrical slot design can effectively increase the contact area with the surface of the rebar, thereby improving the friction and also providing a certain degree of protection to the surface of the rebar during the clamping process, avoiding damage caused by direct clamping.

[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 1 This is a front structural diagram of an easy-to-assemble prestressed anchor that is designed to prevent loosening, according to this utility model.

[0020] Figure 2 This is a side-disassembled structural diagram of an easy-to-assemble, anti-loosening prestressed anchor proposed in this utility model.

[0021] Figure 3 This is a frontal disassembled structural diagram of an easy-to-assemble, anti-loosening prestressed anchor proposed in this utility model.

[0022] Figure 4 This is a side-disassembled structural diagram of an easy-to-assemble, anti-loosening prestressed anchor proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of a steel bar clamping and limiting mechanism for an easy-to-assemble prestressed anchorage that is designed to prevent loosening.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Protective casing;

[0026] 2. Rebar clamping and limiting mechanism; 201. Support slider; 202. Connecting block one; 203. Screw; 204. Connecting block two; 205. Fixing block one; 206. Rotating groove rod; 207. Rebar clamping plate;

[0027] 3. Insert plate; 4. Anchor housing; 5. Rebar perforation; 6. Fixing block two; 7. Inner lining reinforcement bracket; 8. Limiting hole block; 9. Supporting insert block; 10. Rebar collar. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-5 In this embodiment of the utility model, an easy-to-assemble prestressed anchor that is not loose includes a protective shell 1. One end of the surface of the protective shell 1 is provided with a steel bar clamping and limiting mechanism 2. The steel bar clamping and limiting mechanism 2 includes a clamping mechanism and an adjusting mechanism.

[0030] The adjustment mechanism includes a support slider 201. The front of the support slider 201 is rotatably connected to a connecting block 202 via a rotating shaft. One end of the connecting block 202 is slidably connected to a screw 203, and one end of the screw 203 is threadedly connected to a connecting block 204.

[0031] The clamping mechanism includes a fixing block 205, which is fixed to one side of the upper end of the protective shell 1. One end of the fixing block 205 is rotatably connected to a rotating groove rod 206 via a rotating shaft. One end of the rotating groove rod 206 is fixedly connected to a steel bar clamping plate 207.

[0032] The symmetrically arranged connecting blocks 1 202 and 204 have different functions. By sliding the screw 203 within the connecting block 1 202, the position of the overall structure can be flexibly adjusted. This arrangement is to achieve a more precise adjustment and a stable connection effect to adapt to different installation requirements. The thread adjustment of the screw 203 within the connecting block 2 204 can provide a reliable locking force to ensure that it will not loosen due to external forces during use.

[0033] Please see Figure 5 The surface of the support slider 201 is slidably connected to the inner wall of the rotating groove rod 206, and the front of one of the support sliders 201 is rotatably connected to one end of the connecting block 204 by setting a rotating shaft.

[0034] The groove on the rotating rod 206 is adapted to the support slider 201, which restricts the sliding range of the support slider 201. A cylindrical protrusion is provided on one side of the support slider 201. The cylindrical protrusion fits the surface of the rotating rod 206, and the diameter of the cylindrical protrusion is larger than the inner diameter of the arc surface of the groove of the rotating rod 206. This design can effectively prevent the support slider 201 from falling off in the rotating rod 206, thereby improving the stability of the overall structure. When the support slider 201 moves along the groove, the cooperation between the cylindrical protrusion and the inner wall of the groove can also play a certain guiding role, ensuring that the sliding process is smoother and more precise.

[0035] Please see Figure 5 The clamping surface of the steel bar clamping plate 207 is provided with a semi-cylindrical groove, which is linearly and equidistantly distributed.

[0036] The 207 rebar clamping plate has a semi-cylindrical slot that fits the threads on the surface of the rebar, making the clamping of the rebar more secure and reliable. The semi-cylindrical slot design can effectively increase the contact area with the surface of the rebar, thereby improving the friction and also providing some protection to the surface of the rebar during the clamping process, avoiding damage caused by direct clamping.

[0037] Please see Figures 1-2 The protective shell 1 has a plug plate 3 fixedly connected to the middle of both the front and back sides, and an anchor shell 4 is plugged into one end of the plug plate 3.

[0038] One end of the insert plate 3 is provided with a corresponding insertion post, and one end of the insertion post is adapted to the insertion hole opened on the back of the anchor housing 4, which facilitates the assembly of the insert plate 3 and the anchor housing 4. The outer side of the insertion post is designed with elastic protrusions. These protrusions can fit tightly with the grooves on the inner wall of the insertion hole, thereby enhancing the firmness of the connection. During the insertion process, the elastic protrusions will be squeezed and deformed. When fully inserted, they will return to their original shape, ensuring that the insert plate 3 and the anchor housing 4 will not easily come loose.

[0039] Please see Figures 1-3 One side of the anchor housing 4 has a steel bar through hole 5, and a fixing block 6 is fixedly connected to the middle of the inner wall of the protective housing 1. An inner lining reinforcement bracket 7 is fixedly connected to the back of the fixing block 6.

[0040] The rebar through-hole 5 allows the anchor housing 4 to accurately position the rebar, ensuring that the rebar is stable and not easily shifted within the anchor housing 4. This design can effectively reduce the problem of uneven stress distribution caused by rebar swaying.

[0041] The inner lining reinforcement bracket 7 is fixed to the inner lining part of the protective shell 1. The inner lining reinforcement bracket 7 has a reasonable structural design and good support performance, which can effectively prevent the steel bars from shifting during the cement pouring process, thereby ensuring the overall performance stability of the prestressed anchor.

[0042] Please see Figures 1-3 Both sides of the upper end of the anchor housing 4 are fixedly connected to limit hole blocks 8. The inner wall of the limit hole block 8 is slidably connected to a support block 9. A steel bar collar 10 is fixedly connected to one side of the support block 9.

[0043] The top of the limiting hole block 8 is provided with a circular insertion hole and a rectangular insertion hole, which correspond to the circular and rectangular positions on the support block 9. When the steel bar collar 10 is inserted into the limiting hole block 8 through the support block 9, it can achieve quick positioning and stable connection. The circular and rectangular parts of the support block 9 are respectively embedded in the corresponding holes of the limiting hole block 8 to ensure the accuracy of the insertion process, while avoiding loosening or displacement caused by external force, and further enhancing the overall tensile strength of the anchor.

[0044] The reinforcing bar collar 10 precisely defines the placement of the reinforcing bars, ensuring that the position of the reinforcing bars in the anchorage meets the design requirements, maintaining effective restraint on the reinforcing bars, and avoiding positional deviation caused by external loads or vibrations.

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

[0046] First, the reinforcing bar passes through the anchor housing 4, the protective housing 1, and the reinforcing bar collar 10. Then, the reinforcing bar is stretched to the pre-designed length to ensure that its position in the anchor fully meets the design requirements. Subsequently, cement is poured into the interior of the protective housing 1 and the anchor housing 4 until the cement is completely solidified.

[0047] Next, pinch the surfaces of connecting block 1 202 and connecting block 2 204 and pull them horizontally to the left, causing the support slider 201 to slide on the inner wall of the rotating groove rod 206 until the rebar clamping plate 207 fixes the rebar. Then, insert the screw 203 into connecting block 1 202 and into the threaded hole of connecting block 2 204, and gradually tighten it by rotating the screw 203, thereby further locking the rebar clamping plate 207.

[0048] Finally, the threaded structure of the screw 203 can provide a uniform pressure distribution, ensuring the stability and reliability of the clamping force. At the same time, the design of the rotating groove rod 206 provides an additional guiding function for the support slider 201, avoiding deviation or jamming caused by improper operation. After tightening the screw 203, check whether the contact surface between the rebar clamping plate 207 and the rebar is tightly fitted to ensure the stability of the overall structure.

[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 prestressed anchorage that is easy to assemble and prevents loosening, comprising a protective shell (1), characterized in that: A steel bar clamping and limiting mechanism (2) is provided at one end of the surface of the protective shell (1). The steel bar clamping and limiting mechanism (2) includes a clamping mechanism and an adjusting mechanism. The adjustment mechanism includes a support slider (201), and a connecting block one (202) is rotatably connected to the front of the support slider (201) via a rotating shaft. A screw (203) is slidably connected to one end of the connecting block one (202), and a connecting block two (204) is threadedly connected to one end of the screw (203). The clamping mechanism includes a fixing block (205), which is fixed to one side of the upper end of the protective shell (1). One end of the fixing block (205) is rotatably connected to a rotating groove rod (206) via a rotating shaft. One end of the rotating groove rod (206) is fixedly connected to a steel bar clamping plate (207).

2. The easy-to-assemble prestressed anchorage with anti-loosening properties according to claim 1, characterized in that, The surface of the support slider (201) is slidably connected to the inner wall of the rotating groove rod (206), and the front of one of the support sliders (201) is rotatably connected to one end of the connecting block two (204) by setting a rotating shaft.

3. The easy-to-assemble prestressed anchorage for preventing loosening according to claim 1, characterized in that, The clamping surface of the steel bar clamping plate (207) is provided with a semi-cylindrical groove, and the semi-cylindrical groove is linearly and equidistantly distributed.

4. The easy-to-assemble prestressed anchorage for preventing loosening according to claim 1, characterized in that, The protective shell (1) has a plug plate (3) fixedly connected to the middle of both the front and back sides, and an anchor shell (4) is inserted into one end of the plug plate (3).

5. A prestressed anchorage that is easy to assemble and prevents loosening according to claim 4, characterized in that, The anchor housing (4) has a steel bar through hole (5) on one side, and a fixing block two (6) is fixedly connected to the middle of the inner wall of the protective housing (1), and an inner lining reinforcement bracket (7) is fixedly connected to the back of the fixing block two (6).

6. A prestressed anchorage that is easy to assemble and prevents loosening according to claim 5, characterized in that, Both sides of the upper end of the anchor housing (4) are fixedly connected to limit hole blocks (8), and the inner wall of the limit hole block (8) is slidably connected to a support plug (9), and a steel bar collar (10) is fixedly connected to one side of the support plug (9).

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