Jack fixing device suitable for tensioning slow-bonding prestressed tendons

Abstract

The utility model relates to the technical field of engineering construction, and discloses a jack fixing device suitable for tensioning slow-bonding prestressed tendons, which comprises a bottom support, a support frame is mounted on one side of the bottom support, a rotating hole is formed in an inner cavity of the support frame, two groups of rotating shafts are mounted in an inner cavity of the rotating hole, and the rotating shafts are symmetrically distributed; the adjusting mechanism is located in the inner cavity of the supporting frame and used for adjusting the size, and the adjusting mechanism comprises a driving assembly and a fixing assembly; and the buffering mechanism is located on one side of the adjusting mechanism and plays a role in buffering the jack. Through the design of the rotating shaft, angle adjustment of slow-bonding prestress tensioning in different directions and fixing in the jack construction process are achieved, meanwhile, a driving assembly in the adjusting mechanism can respond rapidly, and through the synergistic effect of a moving motor and a bidirectional lead screw, the adjusting mechanism adapts to jacks of different sizes; and the fixing flexibility and the construction efficiency of the jack are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically to a jack fixing device suitable for tensioning prestressed tendons with slow bonding. Background Technology

[0002] Currently, fixing the jacks during prestressed tensioning is a difficult problem. The commonly used methods are manual hand-held operation or damage to the concrete panel structure to adjust the angle, fix the jacks, and carry out the construction.

[0003] However, due to the heavy weight of the front-mounted jack, manual methods can easily lead to fatigue, and during tensioning, fatigue can cause angle changes, damaging the concrete slab surface for fixation and requiring subsequent repairs, resulting in resource waste. Therefore, a device suitable for tensioning slow-bonding prestressed tendons is needed to provide angle adjustment and fixation. Utility Model Content

[0004] The purpose of this invention is to provide a jack fixing device suitable for tensioning prestressed tendons with slow bonding, which solves the problem of inconvenient angle adjustment in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A jack fixing device suitable for tensioning prestressed tendons with slow bonding, comprising:

[0007] The base has a support frame installed on one side. The support frame has a rotating hole in its inner cavity. A rotating shaft is installed in the inner cavity of the rotating hole. There are two sets of rotating shafts that are symmetrically distributed.

[0008] An adjustment mechanism is located within the inner cavity of the support frame and is used for size adjustment. The adjustment mechanism includes a drive component and a fixing component. The drive component is located on top of the base and is used to drive the movement of the fixing component. The fixing component is located on one side of the drive component and is used for size adjustment.

[0009] A buffer mechanism is located on one side of the adjustment mechanism and acts as a buffer for the jack.

[0010] Preferably, the drive assembly includes a fixed frame mounted between rotating shafts, a mounting base mounted on the front of the fixed frame, a movable motor mounted in the inner cavity of the mounting base, a bidirectional lead screw mounted on the back of the output shaft of the movable motor, a movable block threaded to the outer ring of the bidirectional lead screw, and a limit component mounted in the inner cavity of the fixed frame.

[0011] Preferably, the fixing component includes a fixing block installed at the bottom of the moving block, and the fixing block and the moving block can each be provided in two sets and are symmetrically distributed.

[0012] Preferably, the limiting component includes a limiting rod installed in the inner cavity of the fixed frame, the limiting rod being inserted into the inner cavity of the movable block, and the limiting rod being provided in two sets and symmetrically distributed.

[0013] Preferably, the buffer mechanism includes a connecting plate installed on one side of the fixed frame. The connecting plate is provided in two sets and is symmetrically distributed. A buffer ring is installed at the bottom of the connecting plate, and a compression component is installed in the inner cavity of the buffer ring.

[0014] Preferably, the extrusion assembly includes a mounting block installed in the inner cavity of the buffer ring, a telescopic rod installed in the inner cavity of the buffer ring, and a buffer spring installed between the buffer ring and the mounting block.

[0015] Preferably, the fixing frame and the fixing block have fixing holes in their inner cavities, and the inner cavities of the fixing holes are fitted with locking pins.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] 1. This utility model, through the design of the rotating shaft, realizes the angle adjustment of prestressed tensioning in different directions and the fixing of jacks during construction. It solves the problems of difficulty and fatigue caused by manual hand-held angle adjustment in traditional methods. At the same time, the drive component in the adjustment mechanism can respond quickly. Through the synergistic action of the moving motor and the bidirectional lead screw, the distance between the two fixing blocks can be precisely adjusted to adapt to jacks of different sizes, significantly improving the flexibility of jack fixing and construction efficiency.

[0018] 2. Through the design of the buffer mechanism, when the jack is working, the connecting plate and the buffer ring at its bottom will be squeezed, while the telescopic rod and buffer spring in the inner cavity of the buffer ring can quickly absorb and disperse the impact force generated by the jack, thereby protecting the entire device from damage and extending the service life of the device. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model viewed from below.

[0023] The components include: 1. base; 2. support frame; 3. rotating hole; 4. rotating shaft; 5. fixed frame; 6. mounting base; 7. moving motor; 8. double-acting screw; 9. moving block; 10. fixed block; 11. limit rod; 12. connecting plate; 13. buffer ring; 14. mounting block; 15. telescopic rod; 16. buffer spring; 17. fixed hole; 18. locking pin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3 A jack fixing device suitable for tensioning prestressed tendons with slow bonding includes: a base 1, a support frame 2 installed on one side of the base 1, a rotating hole 3 opened in the inner cavity of the support frame 2, a rotating shaft 4 installed in the inner cavity of the rotating hole 3, and two sets of rotating shafts 4 arranged symmetrically; an adjustment mechanism located in the inner cavity of the support frame 2 and used for size adjustment, the adjustment mechanism including a driving component and a fixing component, the driving component located on the top of the base 1 and used to drive the movement of the fixing component, the fixing component located on one side of the driving component and used for size adjustment; and a buffer mechanism located on one side of the adjustment mechanism and used to buffer the jack.

[0026] The drive assembly includes a fixed frame 5 mounted between rotating shafts 4. A mounting base 6 is mounted on the front of the fixed frame 5. A moving motor 7 is mounted inside the cavity of the mounting base 6. A bidirectional lead screw 8 is mounted on the back of the output shaft of the moving motor 7. A moving block 9 is threaded onto the outer ring of the bidirectional lead screw 8. A limit assembly is installed inside the cavity of the fixed frame 5. The fixed assembly includes a fixed block 10 mounted on the bottom of the moving block 9. Two sets of fixed blocks 10, moving blocks 9, and fixed blocks 10 can be provided and are symmetrically distributed. The limit assembly includes a limit rod 11 installed inside the cavity of the fixed frame 5. The limit rod 11 passes through the cavity of the moving block 9. Two sets of limit rods 11 are provided and are symmetrically distributed.

[0027] In this embodiment of the utility model, the moving motor 7 starts and drives the bidirectional lead screw 8 to rotate. Since the outer ring of the bidirectional lead screw 8 is threadedly connected to the moving block 9, when the bidirectional lead screw 8 rotates, the moving block 9 will move horizontally under the action of the limiting rod 11 in the limiting assembly.

[0028] Please refer to Figures 1-4The buffer mechanism includes a connecting plate 12 installed on one side of the fixed frame 5. Two sets of connecting plates 12 are symmetrically distributed. A buffer ring 13 is installed at the bottom of the connecting plate 12, and a compression assembly is installed in the inner cavity of the buffer ring. The compression assembly includes a mounting block 14 installed in the inner cavity of the buffer ring 13, a telescopic rod 15 installed in the inner cavity of the buffer ring 13, and a buffer spring 16 installed between the buffer ring 13 and the mounting block 14.

[0029] Fixing holes 17 are provided in the inner cavities of the fixing frame 5 and the fixing block 10, and a total of locking pins 18 are installed in the inner cavity of the fixing holes 17.

[0030] In this embodiment of the invention, when the jack generates pressure, the connecting plate 12 and the buffer ring 13 at its bottom will be squeezed. The telescopic rod 15 and the buffer spring 16 in the inner cavity of the buffer ring 13 work together to absorb and disperse the impact force generated by the jack, protecting the entire device from damage.

[0031] In use, the device first provides a stable support base through the base 1. A rotating shaft 4 is installed in the rotating hole 3 on the support frame 2, allowing the entire device to be rotated and adjusted as needed around the rotating shaft 4. An adjustment mechanism is located inside the support frame 2 to accommodate jacks of different sizes. The drive assembly operates via a moving motor 7, whose output shaft drives the bidirectional lead screw 8 to rotate. Because the outer ring of the bidirectional lead screw 8 is threadedly connected to the moving block 9, when the bidirectional lead screw 8 rotates, the moving block 9 moves horizontally under the action of the limiting rod 11 in the limiting assembly.

[0032] The fixed block 10 installed at the bottom of the movable block 9 moves accordingly. By adjusting the distance between the two fixed blocks 10, jacks of different sizes can be accommodated and fixed. This design ensures that the jacks remain stable when tensioning prestressing tendons.

[0033] The buffer mechanism plays a crucial role when the jack is in operation. When the jack generates pressure, the connecting plate 12 and its bottom buffer ring 13 are compressed. The telescopic rod 15 and the buffer spring 16 inside the buffer ring 13 work together to absorb and disperse the impact force generated by the jack, protecting the entire device from damage. At the same time, the mounting block 14 provides additional support inside the buffer ring 13, enhancing the buffering effect.

[0034] In addition, the fixing holes 17 in the inner cavity of the fixed frame 5 and the fixed block 10 are equipped with locking pins 18. The design of the locking pins 18 can further ensure the stability of the jack in the fixed position and prevent displacement during operation, thereby improving the safety and reliability of the entire tensioning process.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jack fixing device suitable for tensioning prestressed tendons with slow bonding, characterized in that, include: A base (1) is provided with a support frame (2) on one side. A rotating hole (3) is provided in the inner cavity of the support frame (2). A rotating shaft (4) is provided in the inner cavity of the rotating hole (3). Two sets of rotating shafts (4) are provided and are symmetrically distributed. An adjustment mechanism is located in the inner cavity of the support frame (2) and is used for size adjustment. The adjustment mechanism includes a drive component and a fixing component. The drive component is located on the top of the base (1) and is used to drive the movement of the fixing component. The fixing component is located on one side of the drive component and is used for size adjustment. A buffer mechanism is located on one side of the adjustment mechanism and acts as a buffer for the jack.

2. The jack fixing device for tensioning prestressed tendons with slow bonding as described in claim 1, characterized in that: The drive assembly includes a fixed frame (5) installed between rotating shafts (4), a mounting base (6) is mounted on the front of the fixed frame (5), a moving motor (7) is installed in the inner cavity of the mounting base (6), a bidirectional lead screw (8) is mounted on the back of the output shaft of the moving motor (7), a moving block (9) is threaded to the outer ring of the bidirectional lead screw (8), and a limit component is installed in the inner cavity of the fixed frame (5).

3. The jack fixing device for tensioning prestressed tendons with slow bonding as described in claim 2, characterized in that: The fixing component includes a fixing block (10) installed at the bottom of the moving block (9). The fixing block (10) and the moving block (9) can each be provided in two sets and are symmetrically distributed.

4. A jack fixing device for tensioning prestressed tendons with slow bonding as described in claim 2, characterized in that: The limiting component includes a limiting rod (11) installed in the inner cavity of the fixed frame (5). The limiting rod (11) is inserted into the inner cavity of the moving block (9). There are two sets of limiting rods (11) that are symmetrically distributed.

5. A jack fixing device for tensioning prestressed tendons with slow bonding as described in claim 1, characterized in that: The buffer mechanism includes a connecting plate (12) installed on one side of the fixed frame (5). The connecting plate (12) is provided in two sets and is symmetrically distributed. A buffer ring (13) is installed at the bottom of the connecting plate (12), and a compression component is installed in the inner cavity of the buffer ring.

6. A jack fixing device for tensioning prestressed tendons with slow bonding, as described in claim 5, characterized in that: The compression assembly includes a mounting block (14) installed in the inner cavity of a buffer ring (13), a telescopic rod (15) installed in the inner cavity of the buffer ring (13), and a buffer spring (16) installed between the buffer ring (13) and the mounting block (14).

7. A jack fixing device for tensioning prestressed tendons with slow bonding as described in claim 2, characterized in that: The fixing frame (5) and the fixing block (10) have fixing holes (17) in their inner cavities, and the inner cavities of the fixing holes (17) are equipped with a total of locking pins (18).

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