Prestressed carbon fiber grid square silo structure

Abstract

This utility model relates to a prestressed carbon fiber mesh silo structure, including a silo with a carbon fiber mesh arranged around its outer wall. Tensioning components are symmetrically arranged at the ends of the carbon fiber mesh. Each tensioning component includes a positioning block fixed to the silo wall, and multiple tensioning rods along the tensioning direction are mounted on the positioning block. One end of each tensioning rod is connected to the carbon fiber mesh, and the other end is connected to a push plate, which connects the two ends of the untensioned carbon fiber mesh to the tensioning rods in the tensioning component. This drives a hydraulic component to move in the opposite direction. Since the tensioning rods are tensionable, they can be pushed to move along the tensioning direction, causing displacement at both ends of the carbon fiber mesh, thus tensioning the carbon fiber mesh. During the movement of the tensioning rods, the limiting groove of the tensioning rod will press against the guide surface on the blocking block, causing the blocking block to disengage from the limiting groove, thereby enabling the tensioning rod to move.

Description

Technical Field

[0001] This utility model relates to a prestressed carbon fiber mesh square silo structure. Background Technology

[0002] In the grain storage sector, silos are commonly used storage structures. Traditional silos typically employ reinforced concrete structures with thick walls. This not only results in a heavy silo weight, increasing the amount of building materials used and construction costs, but also, due to the relatively low tensile strength of concrete, the walls are prone to cracking over long-term use. To address this cracking, prestressed carbon fiber mesh is installed on the silo walls to counteract the tensile stress generated by the lateral pressure of the material. This effectively controls crack propagation or delays crack appearance, significantly improving the stiffness and load-bearing capacity of the silo structure, offering superior reinforcement compared to traditional reinforced concrete silos.

[0003] The existing process for installing prestressed carbon fiber mesh into the wall of a silo involves: first, tensioning the carbon fiber mesh; then, using temporary anchoring devices to maintain the mesh tension; finally, fixing the permanent anchoring devices to the silo wall through holes; and finally, anchoring the ends of the carbon fiber mesh to the permanent anchoring devices and covering it with a layer of high-performance mortar or concrete protective layer. However, this process of tensioning the carbon fiber mesh first, then temporarily fixing it, and finally permanently fixing it makes the operation more cumbersome. Furthermore, the tensioned mesh must be precisely moved to the designed position. Due to slight deviations that may occur during temporary fixing, the tensioned mesh may not connect properly to the fixing devices, requiring operators to perform multiple operations to connect the tensioned mesh to the fixing devices. This makes the operation more complex and inconvenient for installing prestressed carbon fiber mesh. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed carbon fiber mesh square silo structure to solve the technical problem of complex carbon fiber installation in existing prestressed carbon fiber mesh square silo structures.

[0005] The technical solution of this utility model is as follows: It includes a square silo, with carbon fiber mesh arranged around the outer wall of the square silo. Tensioning components are symmetrically arranged at the ends of the carbon fiber mesh. The tensioning components include positioning blocks fixed on the wall of the square silo, and multiple tensioning rods along the tensioning direction are arranged on the positioning blocks. One end of the tensioning rod is connected to the carbon fiber mesh, and the other end of the tensioning rod is connected to the same push plate. There is a hydraulic component with its axis arranged along the tensioning direction between the push plate and the positioning block. The hydraulic component pushes the push plate to drive the tensioning rods to tension along the tensioning direction, thereby tensioning the carbon fiber mesh. A spring pin mechanism is fixedly arranged inside the positioning block. The spring pin mechanism includes a spring with a vertical axis and a positioning pin. A guide surface is arranged on the side of the positioning pin facing away from the tensioning direction to guide the positioning pin to avoid the direction of the spring. The spring pin mechanism also includes multiple equally spaced limiting grooves corresponding to the tensioning rods. After the tensioning rod is tensioned, the positioning pin is inserted into the corresponding limiting groove under the action of the spring to lock the tensioning rod.

[0006] Angle steel is bonded to the corner of the outer wall of the silo. The tensioning assembly is fixed to the surface of the angle steel by a second nut to avoid drilling holes in the silo wall and damaging it. When the tensioning assembly tensions the carbon fiber mesh, the tension force of the carbon fiber mesh drives the angle steel to squeeze the outer wall of the silo. This can both transfer the tension force of the carbon fiber mesh to the outer wall of the silo and strengthen the fixation of the angle steel.

[0007] The tension rod is equipped with a fixing block, and a wedge-shaped block is set inside the fixing block. The fixing block has a wedge-shaped groove that matches the inclined surface of the wedge-shaped block. The carbon fiber mesh and the fixing block are connected by the wedge-shaped block to ensure the stability of the carbon fiber mesh connection.

[0008] Multiple tensioning components are distributed along the vertical direction of the silo, which can simultaneously tension multiple positions at the ends of the carbon fiber to improve the uniform tension of the carbon fiber mesh and enhance the load-bearing capacity of the silo.

[0009] One end of the tension rod is threaded with a third nut, and the hydraulic assembly transmits force to the third nut, which can tension the tension rod.

[0010] The hydraulic assembly includes a hydraulic cylinder, and a push plate is connected to one side of the piston rod of the hydraulic cylinder. Both the hydraulic cylinder and the push plate are detachable. After the carbon fiber mesh is tensioned, the hydraulic cylinder and the push plate can be disassembled to reduce the load on the silo.

[0011] The spring is a compression spring to prevent the blocking block from dislodging from the limiting groove when it is squeezed.

[0012] The beneficial effects of this technical solution are as follows: In use, the prestressed carbon fiber mesh silo structure connects the two ends of the untensioned carbon fiber mesh to the tension rods in the tensioning assembly. This drives the hydraulic assembly to move in the opposite direction. Since the tension rods are tensionable, they can be pushed along the tensioning direction, causing displacement at both ends of the carbon fiber mesh, thus tensioning the mesh. During the movement of the tension rods, the limiting groove opening of the tension rods presses against the guide surface on the blocking block, causing the blocking block to disengage from the limiting groove, thereby achieving… The tension rod moves, and after the carbon fiber mesh is tensioned, the force that causes the tension rod to retract is transmitted to the positioning block through the blocking block and the limiting groove. Since the positioning block is fixed to the silo wall, it can limit the retraction of the tension rod, thus automatically maintaining the tension of the carbon fiber mesh. It eliminates the need to first tension the carbon fiber mesh, then temporarily fix it, and finally fix it. Automatic tensioning and locking are achieved through the tensioning assembly and spring pin mechanism, which greatly reduces the operation steps and makes it easier for operators to operate. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of a specific embodiment of the prestressed carbon fiber mesh square silo structure of this utility model;

[0014] Figure 2 This is a specific embodiment of the prestressed carbon fiber mesh square silo structure of this utility model. Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a front sectional view of the structural tensioning component of a specific embodiment of the prestressed carbon fiber mesh square silo structure of this utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the structural tensioning component of a specific embodiment of the prestressed carbon fiber mesh square silo structure of this utility model.

[0017] In the diagram: 1. Carbon fiber mesh; 2. Angle steel; 3. Square silo; 4. Fixing block; 5. Connecting rod; 6. First nut; 7. Tensioning rod; 8. Second nut; 9. Positioning block; 10. Connecting block; 11. Third nut; 12. Push plate; 13. Hydraulic cylinder; 14. Tensioning assembly; 15. Limiting groove; 16. Spring; 17. Blocking block; 18. Wedge block; 19. Wedge groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0022] A specific embodiment of the prestressed carbon fiber mesh square silo structure of this utility model is as follows: Figure 1-3As shown, the structure includes a square silo 3. A carbon fiber mesh 1 is arranged around the outer wall of the square silo 3. Tensioning components 14 are symmetrically arranged at the ends of the carbon fiber mesh 1. Each tensioning component 14 includes a positioning block 9 fixed to the wall of the square silo 3. The positioning block 9 has symmetrically arranged screw holes, with a second nut 8 threaded into the inner surface of each screw hole. Multiple tensioning rods 7 are arranged on the positioning block 9 along the tensioning direction. There are four tensioning rods 7, each a screw rod. One end of each tensioning rod 7 is connected to the carbon fiber mesh 1, and the other end is connected to the same push plate 12. A hydraulic component with its axis along the tensioning direction is located between the push plate 12 and the positioning block 9. The hydraulic component pushes the push plate 12. 2. The tension rod 7 is driven to tension the carbon fiber mesh 1 along the tensioning direction. A connecting block 10 is symmetrically fixed to one side of the positioning block 9. A sliding groove is opened in the connecting block 10. A spring pin mechanism is fixedly installed in the sliding groove. The spring pin mechanism includes a spring 16 with a vertical axis and a positioning pin. The positioning pin is a blocking block 17. A guide surface is provided on the side of the positioning pin facing away from the tensioning direction to guide the positioning pin to avoid the direction of the spring 16. The spring pin mechanism also includes multiple equally spaced limiting grooves 15 corresponding to the tension rod 7. After the tension rod is tensioned, the positioning pin is inserted into the corresponding limiting groove 15 under the action of the spring 16 to lock the tension rod 7.

[0023] Angle steel 2 is adhered to the corner of the outer wall of the silo 3. The angle steel 2 is glued to the outer wall of the silo 3 with epoxy resin. The tensioning component 14 is fixed to the surface of the angle steel 2 by the cooperation of the second nut 8 and the screw hole, so as to avoid drilling holes in the silo 3 wall and damaging the silo 3 wall. When the tensioning component 14 tensions the carbon fiber mesh 1, the tension of the carbon fiber mesh 1 drives the angle steel 2 to squeeze the outer wall of the silo 3. This can not only transfer the tension of the carbon fiber mesh 1 to the outer wall of the silo 3, but also strengthen the fixation of the angle steel 2.

[0024] A fixing block 4 is provided on the tension rod 7. The fixing block 4 has a second circular hole for the tension rod 7 to pass through. The fixing block 4 is in contact with the first nut 6. A wedge block 18 is provided inside the fixing block 4. A connecting rod 5 is fixedly connected to one end of the wedge block 18. One end of the connecting rod 5 is fixedly connected to the carbon fiber mesh 1. A wedge groove 19 is provided inside the fixing block 4 to cooperate with the inclined surface of the wedge block 18. The carbon fiber mesh 1 and the fixing block 4 are connected by the wedge block 18 to ensure the stability of the connection of the carbon fiber mesh 1.

[0025] Multiple tensioning components 14 are distributed along the vertical direction of the silo 3. There are three tensioning components 14, which can simultaneously tension multiple positions at the ends of the carbon fiber mesh 1 to improve the uniform tension of the carbon fiber mesh 1 and improve the load-bearing capacity of the silo 3.

[0026] One end of the tension rod 7 is threadedly connected to a third nut 11. The hydraulic assembly transmits force to the third nut 11, which can tension the tension rod 7. The other end of the tension rod 7 is threadedly connected to a first nut 6.

[0027] The hydraulic assembly includes a hydraulic cylinder 13. One side of the piston rod of the hydraulic cylinder 13 is connected to the push plate 12, and the other side of the hydraulic cylinder 13 is connected to the positioning block 9. The push plate 12 has a first circular hole for the tensioning rod 7 to pass through. The push plate 12 is in contact with the third nut 11. Both the hydraulic cylinder 13 and the push plate 12 can be disassembled. The hydraulic cylinder 13 and the push plate 12 can be disassembled by bolts and nuts. After the carbon fiber mesh 1 is tensioned, the hydraulic cylinder 13 and the push plate 12 can be disassembled to reduce the load on the silo 3.

[0028] The spring 16 of the spring pin mechanism is a compression spring. One end of the spring 16 is fixedly connected to the blocking block 17, and the other end of the spring 16 is fixedly connected to the slide groove to prevent the blocking block 17 from disengaging from the limiting groove 15 when it is squeezed.

[0029] In use, one end of the connecting rod 5 is fixedly connected to the end of the untensioned carbon fiber mesh 1, and the other end of the connecting rod 5 is fixedly connected to the wedge block 18. Driving the hydraulic cylinder 13 moves the push plate 12, which slides on the surface of the tension rod 7. Since the push plate 12 is in contact with the third nut 11, and the third nut 11 is threadedly connected to the tension rod 7, it can push the tension rod 7 to move along its axis. Since the first nut 6 is in contact with the fixing block 4, it can transmit force to the fixing block 4. Due to the cooperation between the wedge block 18 and the wedge groove 19, the force can be transmitted through the connecting rod 13. Tensioning rod 5 tensions the end of carbon fiber mesh 1, achieving tensioning of carbon fiber mesh 1. During the movement of tension rod 7, the opening of the limiting groove 15 of tension rod 7 will press against the inclined surface on the blocking block 17. Because the surface intersecting the right end of the inclined surface extends beyond the opening of the limiting groove 15, the blocking block 17 disengages from the limiting groove 15, allowing tension rod 7 to move. After tensioning of carbon fiber mesh 1 is completed, to prevent carbon fiber mesh 1 from retracting, due to the elasticity of spring 16, the surface intersecting the left end of the inclined surface can contact the bottom of the limiting groove 15, thus limiting the tension. When the tension rod 7 retracts, the force of retraction is transmitted to the positioning block 9 via the blocking block 17. Since the positioning block 9 is fixed to the surface of the angle steel 2 by the second nut 8, and the angle steel 2 is bonded to the outer wall of the silo 3 with high-strength adhesive, the tension force of the carbon fiber mesh 1 can be transmitted to the outer wall of the silo 3 to counteract the material extrusion pressure and control the occurrence of cracks in the silo 3. After the tensioning assembly 14 along the length of the silo 3 completes the tensioning of the carbon fiber mesh 1 on the angle steel 2, the tension force of the carbon fiber mesh 1 drives the surface extrusion along the width of the silo 3 on the angle steel 2. While the wall of the silo 3 is being pressed, the tensioning component 14 on the angle steel 2, along the width direction of the silo 3, tensions the carbon fiber mesh 1. The tension force of the carbon fiber mesh 1 causes the surface of the angle steel 2, along the length direction of the silo 3, to press against the wall of the silo 3, thus strengthening the fixation of the angle steel 2. This achieves automatic tension maintenance of the tensioned carbon fiber mesh 1, eliminating the need for pre-tensioning, temporary fixing, and final fixing of the carbon fiber mesh 1. Automatic tensioning and locking are achieved through the tensioning component 14 and the spring pin mechanism, greatly reducing the number of operation steps and making it easier for operators to operate.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A prestressed carbon fiber mesh square silo structure, comprising a square silo, wherein a carbon fiber mesh is provided around the outer wall of the square silo, characterized in that, Tensioning components are symmetrically arranged at the ends of the carbon fiber mesh. The tensioning components include positioning blocks fixed to the wall of the silo, and multiple tensioning rods along the tensioning direction are arranged on the positioning blocks. One end of the tensioning rod is connected to the carbon fiber mesh, and the other end of the tensioning rod is connected to the same push plate. A hydraulic component with its axis along the tensioning direction is located between the push plate and the positioning block. The hydraulic component pushes the push plate to drive the tensioning rods to tension along the tensioning direction, thereby tensioning the carbon fiber mesh. A spring pin mechanism is fixedly arranged inside the positioning block. The spring pin mechanism includes a spring with a vertical axis and a positioning pin. A guide surface is provided on the side of the positioning pin facing away from the tensioning direction to guide the positioning pin to avoid the direction of the spring. The spring pin mechanism also includes multiple equally spaced limiting grooves corresponding to the tensioning rods. After the tensioning rods are tensioned, the positioning pins are inserted into the corresponding limiting grooves under the action of the spring to lock the tensioning rods.

2. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, Angle steel is bonded to the corner of the outer wall of the silo, and the tensioning assembly is fixed to the surface of the angle steel by a second nut.

3. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, The tension rod is provided with a fixing block, and a wedge-shaped block is provided inside the fixing block. The fixing block has a wedge-shaped groove that matches the inclined surface of the wedge-shaped block. The carbon fiber mesh is connected to the fixing block through the embedded wedge-shaped block.

4. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, Multiple tensioning components are distributed along the vertical direction of the square silo.

5. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, One end of the tension rod is threaded with a third nut, and the hydraulic assembly transmits force to the third nut.

6. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, The hydraulic assembly includes a hydraulic cylinder, and both the hydraulic cylinder and the push plate are detachable.

7. The prestressed carbon fiber mesh square silo structure according to claim 1, characterized in that, The spring in the spring pin mechanism is a compression spring.

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