Prestress transfer beam

Abstract

The utility model belongs to the field of transfer beam production, and particularly relates to a prestress transfer beam which comprises a transfer beam body, a prestress generating mechanism is arranged in the transfer beam body and comprises a limiting plate, a connecting column is arranged on one side of the limiting plate, a guide plate is arranged in the connecting column, and the guide plate is arranged on the other side of the limiting plate. A shock pad is installed between the guide plate and the connecting column, a connecting shaft is arranged on one side of the guide plate, a first connecting lug is installed on the outer portion of the connecting shaft, the guide column is welded to the other side of the first connecting lug, and a limiting ring is arranged on the outer portion of the guide column. An operator rotates the fixing nut to perform positive pulling operation on the pulling rope, at the moment, the pulling structure is in an open state, the pulling rope can be released, the pulling rope can be locked after being tensioned to a certain degree, and therefore the position of the pulling rope is fixed, and the pulling rope is fixed. By means of the structure, the situation that the prestress of the transfer beam is reduced due to long-time use of the transfer beam can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of transfer beam production, specifically a prestressed transfer beam. Background Technology

[0002] A prestressed transfer beam is a key component in building structures used to transfer and convert forces between different structural floors. Structurally, it typically has a large cross-sectional size and can withstand huge loads. Prestressed tendons are arranged inside the beam, usually in a curved or zigzag pattern. The design is optimized according to the load distribution and structural stress characteristics of the beam. The principle of a prestressed transfer beam is to tension the prestressed tendons before the concrete is poured, so that they generate prestress.

[0003] Currently, existing prestressed transfer beams generally use prestressed tendons internally. However, the prestressed tendons themselves have high stiffness, so a large tensile force is required to tension them during the tensioning operation. At the same time, there are shortcomings in the positioning effect of the prestressed tendons after tensioning, and multiple operations need to be performed regularly to check the prestress of the transfer beam.

[0004] Therefore, this utility model provides a prestressed transfer beam. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A prestressed transfer beam of this utility model includes a transfer beam body. A prestressing generating mechanism is provided inside the transfer beam body. The prestressing generating mechanism includes a limiting plate. A connecting column is provided on one side of the limiting plate. A guide plate is provided inside the connecting column. A shock-absorbing pad is installed between the guide plate and the connecting column. A connecting shaft is provided on one side of the guide plate. A first connecting lug is installed on the outside of the connecting shaft. A guide column is welded to the other side of the first connecting lug. A limiting ring is provided on the outside of the guide column. The limiting ring is welded to the limiting plate. A second connecting lug is provided at the other end of the guide column. A third connecting lug is provided on the side of the guide plate away from the limiting plate. The external connecting support plate of the ear has an anti-slip plate welded to its bottom, and a base plate welded to the bottom of the limiting plate. The top of the base plate has a second guide wire opening, and the bottom end of the second connecting ear has a first guide wire opening. The first guide wire opening and the second guide wire opening are on the same horizontal line. A traction rope is installed through the inside of the first guide wire opening and through the inside of the second guide wire opening. With this structural design, the traction rope is pulled forward by the operator rotating the fixing nut. At this time, the traction structure is in the open state and the traction rope is released. When the traction rope is stretched to a certain extent, it will lock the traction rope to fix its position. This structure can avoid the reduction of the prestress of the transfer beam due to long-term use.

[0007] The traction rope has screws at both ends, and fixed nuts are provided on the outside of the screws. The fixed nuts have threaded grooves inside, and the threaded grooves have the same diameter as the screws. The traction rope also has prestressing generating mechanisms with the same structure at both ends. The screws are placed outside the conversion beam body. The first guide wire is fixedly connected to the contact part of the traction rope. The limiting plate is placed on the inner wall of the conversion beam body. This structural design can save the difficulty of prestressing by locking and releasing the traction structure multiple times, so that the operator does not have to tension the traction rope to the full position in one go, avoiding the situation where the operator is exhausted midway and the tensioning is not in place.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. In this utility model, the traction rope is pulled forward by the operator rotating the fixing nut. At this time, the traction structure is in the open state and the traction rope will be released. When the traction rope is stretched to a certain extent, it will be locked, thereby fixing the position of the traction rope. This structure can avoid the reduction of the prestress of the transfer beam due to long-term use.

[0010] 2. In this utility model, by designing the traction structure as a one-way locking structure, the difficulty of one prestressing tensioning can be saved by locking and releasing the traction structure multiple times. This allows the operator not to tension the traction rope to the full position in one go, avoiding the situation where the operator becomes exhausted midway and the tensioning is not completed. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a partial structural diagram of the traction rope in this utility model;

[0014] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0015] Figure 4 This is a partial structural diagram of the base plate of this utility model.

[0016] In the diagram: 1. Transfer beam body; 2. Fixing nut; 3. Limiting plate; 4. Guide plate; 5. Limiting ring; 6. Base plate; 8. Guide post; 9. First connecting ear; 10. Threaded groove; 11. Screw; 12. Traction rope; 13. Connecting shaft; 14. First wire guide port; 15. Second connecting ear; 16. Second wire guide port; 17. Support plate; 18. Third connecting ear; 19. Connecting post; 20. Shock-absorbing pad. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figure 1-4As shown, a prestressed transfer beam includes a transfer beam body 1. A prestressing generating mechanism is provided inside the transfer beam body 1. The prestressing generating mechanism includes a limiting plate 3. A connecting column 19 is provided on one side of the limiting plate 3. A guide plate 4 is provided inside the connecting column 19. A shock-absorbing pad 20 is installed between the guide plate 4 and the connecting column 19. A connecting shaft 13 is provided on one side of the guide plate 4. A first connecting lug 9 is installed on the outside of the connecting shaft 13. A guide column 8 is welded to the other side of the first connecting lug 9. A limiting ring 5 is provided on the outside of the guide column 8. The limiting ring 5 is welded to the limiting plate 3. A second connecting lug 15 is provided at the other end of the guide column 8. A third connecting lug 18 is provided on the side of the guide plate 4 away from the limiting plate 3. The support plate 17 is connected to the prestressed beam. The bottom of the support plate 17 is welded with an anti-slip plate. In this prestressed transfer beam, when it is necessary to fix the position of the traction rope 12 to prevent the prestress from decreasing, the operator rotates the fixing nut 2 to perform a positive pulling operation on the traction rope 12. At this time, the traction structure is in the open state and will release the traction rope 12. As the operation proceeds, the traction rope 12 is gradually tensioned. When it is tensioned to a certain extent, the traction structure will lock the traction rope 12. This locking operation fixes the position of the traction rope 12, thereby avoiding the situation where the prestress in the beam decreases due to various factors due to long-term use of the transfer beam body 1. In this way, the prestress level of the transfer beam can be effectively maintained, ensuring that it can stably realize the function of force transmission and conversion in the building structure.

[0019] The bottom of the limiting plate 3 is welded to a base plate 6. A second guide wire opening 16 is opened at the top of the base plate 6, and a first guide wire opening 14 is opened at the bottom of the second connecting ear 15. The first guide wire opening 14 and the second guide wire opening 16 are on the same horizontal line. A traction rope 12 is threaded through the interior of the first guide wire opening 14 and passes through the interior of the second guide wire opening 16. Screws 11 are provided at both ends of the traction rope 12, and fixing nuts 2 are provided on the exterior of the screws 11. Threaded grooves 10 are opened inside the fixing nuts 2, and the threaded grooves 10 have the same diameter as the screws 11. Prestressing generating mechanisms with the same structure are provided at both ends of the traction rope 12. The screws 11 are placed outside the conversion beam body 1. The first guide wire opening 14 and the traction rope... The contact part of 12 is fixedly connected, and the limiting plate 3 is placed on the inner wall of the conversion beam body 1. This prestressed conversion beam has a traction structure designed as a one-way locking structure. When performing prestressing tensioning, the operator does not need to tension the traction rope 12 to the full position at once, because the tensioning operation can be completed gradually by locking and releasing the traction structure multiple times. Specifically, after each time the traction rope 12 is tensioned to a certain extent, it is fixed by using the one-way locking characteristic of the traction structure. Then, after a short rest or adjustment, the tensioning operation can be performed again. In this way, the situation of insufficient tensioning due to the operator's exhaustion during the tensioning process at one time is avoided, making the prestressing tensioning operation easier and more accurate, improving work efficiency and prestress conversion amount.

[0020] Working principle: In this prestressed transfer beam, when it is necessary to fix the position of the traction rope 12 to prevent a reduction in prestress, the operator performs a positive pull operation on the traction rope 12 by rotating the fixing nut 2. At this time, the traction structure is in the open state, releasing the traction rope 12. As the operation proceeds, the traction rope 12 is gradually tensioned. When it is tensioned to a certain extent, the traction structure locks the traction rope 12. This locking operation fixes the position of the traction rope 12, thereby preventing the reduction of prestress within the beam due to various factors caused by prolonged use of the transfer beam body 1. In this way, the prestress level of the transfer beam can be effectively maintained, ensuring its stable force distribution within the building structure. With its transfer and conversion function, this prestressed transfer beam features a unidirectional locking traction structure. During prestressing tensioning, operators do not need to tension the traction rope 12 to its full extent in one go. The tensioning operation can be completed gradually by locking and releasing the traction structure multiple times. Specifically, after each tensioning of the traction rope 12 to a certain extent, the unidirectional locking characteristic of the traction structure is used to fix it. Then, a short rest or adjustment can be taken before tensioning again. This avoids the situation where the tensioning is not completed due to the operator exhausting their strength during a single tensioning process. This makes the prestressing tensioning operation easier and more accurate, improving work efficiency and the amount of prestress conversion.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-stressed transfer beam, characterized by: The system includes a transfer beam body (1), which has a prestressing generating mechanism inside. The prestressing generating mechanism includes a limiting plate (3). A connecting column (19) is provided on one side of the limiting plate (3). A guide plate (4) is provided inside the connecting column (19). A shock-absorbing pad (20) is installed between the guide plate (4) and the connecting column (19). A connecting shaft (13) is provided on one side of the guide plate (4). A first connecting ear (9) is installed on the outside of the connecting shaft (13). A guide column (8) is welded on the other side of the first connecting ear (9). A limiting ring (5) is provided on the outside of the guide column (8). The limiting ring (5) is welded to the limiting plate (3). A second connecting ear (15) is provided at the other end of the guide column (8).

2. A pre-stressed transfer beam according to claim 1, wherein: The bottom of the limiting plate (3) is welded to a base plate (6), the top of the base plate (6) has a second wire opening (16), the bottom end of the second connecting ear (15) has a first wire opening (14), and the first wire opening (14) and the second wire opening (16) are on the same horizontal line.

3. A pre-stressed transfer beam according to claim 2, wherein: A traction rope (12) is provided inside the first wire opening (14), and the traction rope (12) passes through the inside of the second wire opening (16).

4. A pre-stressed transfer beam according to claim 3, wherein: The traction rope (12) is provided with screws (11) at both ends. A fixing nut (2) is provided on the outside of the screw (11). A threaded groove (10) is opened inside the fixing nut (2). The threaded groove (10) has the same diameter as the screw (11).

5. A pre-stressed transfer beam according to claim 4, wherein: The traction rope (12) has a prestressing generating mechanism with the same structure at both ends, and the screw (11) is placed outside the conversion beam body (1).

6. A pre-stressed transfer beam according to claim 3, wherein: The first wire inlet (14) is fixedly connected to the contact part of the traction rope (12), and the limiting plate (3) is placed on the inner wall of the conversion beam body (1).

7. A pre-stressed transfer beam according to claim 1, wherein: The guide plate (4) is provided with a third connecting ear (18) on the side away from the limiting plate (3), and the third connecting ear (18) is connected to a support plate (17) on the outside. The bottom of the support plate (17) is welded with an anti-slip plate.

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