A close-packed control device

Abstract

The utility model discloses a closely joint control device, including T type pull rod and two superimposed board, the T type pull rod on slidingly covers and sets up back lath, back lath is fixedly connected with the support frame on, support frame is fixedly connected with the connecting column on, be provided with the clamping assembly on the connecting column, still be provided with locking assembly on the T type pull rod. Through setting up locking assembly drive back lath to move locking, simultaneously link clamping assembly and the ratchet structure automatic clamping on the T type pull rod, form double locking mechanism, when the pouring concrete produces huge thrust to back lath, the thrust is passed to clamping assembly through support frame and connecting column, and is effectively decomposed and bears by the bite effect of ratchet block and ratchet tooth, the local stress that greatly alleviated the locking assembly bears, the device not only effectively prevented the damage of thread because of overload, significantly improved the reliability and durability of the tensioning effect, promoted construction quality and security.

Description

Technical Field

[0001] This utility model relates to the field of construction tools technology, specifically to a close-fitting control device. Background Technology

[0002] In prefabricated building construction, after the steel pipe truss composite slab is hoisted into place, in order to ensure that the flatness of the bottom of the slab after splicing multiple prefabricated slabs meets the specifications, the construction workers will use a fine leveling process called "slab joint tie rod". This process dynamically adjusts and fixes the relative height between adjacent slabs by inserting high-strength tie rods at the joints of adjacent slabs and applying symmetrical tension, thereby effectively eliminating installation errors, ensuring the overall flatness of the ceiling surface under the slab, and laying a high-quality foundation for subsequent processes.

[0003] In the existing technology, a T-shaped screw is passed through the seam of the one-way plate. The straight part of the upper end of the welded part is closely attached to the upper part of the two one-way plates. The screw is inserted into the hole of the steel back rib and tightened with a nut to abut against the steel back rib and make the steel back rib tightly attached to the bottom of the plate. The flatness of the bottom of the plate is adjusted by continuously rotating the nut. This is called a tight splicing control device.

[0004] The shortcomings of the existing technology are as follows: after the steel pipe truss composite plate is tightened, concrete needs to be poured to achieve the splicing of the plates. During the pouring, the concrete will generate a large thrust on the steel back rib, which will increase the thrust between the steel back rib and the nut. This can easily cause damage to the threads at the nut and the bolt, which will affect the overall tightening effect and the subsequent use of the bolt. Therefore, there are certain shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a keypad control device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a close-fitting control device, comprising a T-shaped tie rod and two overlapping plates, a back rib plate slidably sleeved on the T-shaped tie rod, a support frame fixedly connected to the back rib plate, a connecting column fixedly connected to the support frame, a clamping component provided on the connecting column, and a locking component also provided on the T-shaped tie rod; during installation, when the locking component drives the back rib plate to move and lock, it drives the clamping component to engage with the T-shaped tie rod, so that the back rib plate is subjected to thrust and the thrust is decomposed, avoiding damage caused by excessive local stress on the locking component.

[0007] As a further description of the above technical solution: The clamping assembly includes elastic telescopic rods fixedly connected to both sides of the connecting column. Each elastic telescopic rod on both sides is fixedly connected to a long plate, and each long plate is provided with a ratchet block.

[0008] As a further description of the above technical solution: One end of the T-shaped tie rod has a rectangular groove, and multiple ratchet teeth are provided on both sides inside the rectangular groove.

[0009] As a further description of the above technical solution: The locking assembly includes a threaded groove formed on the T-shaped tie rod, and a nut is threadedly connected to the threaded groove.

[0010] As a further description of the above technical solution: The nut is connected to the support frame via a connecting unit, which includes multiple connecting rods fixedly connected to the nut and slidably connected to the back rib plate.

[0011] As a further description of the above technical solution: The T-shaped tie rod is made of short steel bars and long steel bars welded vertically, with the short steel bars having a diameter of 25mm and the long steel bars having a diameter of 16mm.

[0012] The beneficial effects of the close-knitting control device provided by this utility model in the above technical solution are as follows: This invention employs a locking assembly to drive the back rib plate to move and lock, while simultaneously, a linkage clamping assembly automatically engages with the ratchet structure on the T-shaped tie rod, forming a double locking mechanism. When the poured concrete exerts a significant thrust on the back rib plate, this thrust is transmitted to the clamping assembly through the support frame and connecting column, and effectively decomposed and borne by the meshing action of the ratchet blocks and ratchet teeth. This greatly reduces the local stress borne by the locking assembly. This device not only effectively prevents the threads from being damaged due to overload, significantly improving the reliability and durability of the tightening effect and extending the service life of the device, but also ensures the stability of the flatness adjustment of the composite slab bottom, improving construction quality and safety.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 This is a longitudinal sectional view of the overall structure provided for an embodiment of the present utility model; Figure 3 This is a partial structural exploded view provided for an embodiment of the present utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0017] Explanation of reference numerals in the attached figures: 1. T-shaped tie rod; 2. Composite plate; 3. Back rib plate; 4. Support frame; 5. Connecting column; 6. Elastic telescopic rod; 7. Long plate; 8. Ratchet block; 9. Rectangular groove; 10. Ratchet tooth; 11. Threaded groove; 12. Nut; 13. Connecting rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Please see Figure 1-4This embodiment provides a tight-fitting control device, including a T-shaped tie rod 1 and two overlapping plates 2. The T-shaped tie rod 1 is formed by vertically welding short and long steel bars to form a T-shape. The diameter of the short steel bars is 25mm and the diameter of the long steel bars is 16mm. The T-shaped tie rod 1 is placed at the gap between the two overlapping plates. By pulling the T-shaped tie rod 1 through the gap between the two overlapping plates 2, the flatness of the bottom of the plates can be controlled when the two overlapping plates 2 are spliced. A back rib plate 3 is slidably fitted on the T-shaped tie rod 1. A support frame 4 is fixedly connected to the back rib plate 3. The length of the support frame 4 is slightly less than the length of the T-shaped tie rod 1 extending out of the overlapping plate 2. A connecting column 5 is fixedly connected to the support frame 4. A clamping component is provided on the connecting column 5. A locking component is also provided on the T-shaped tie rod 1. Installation When the locking assembly drives the back rib plate 3 to move and lock, it drives the clamping assembly to engage with the T-shaped tie rod 1, so that the back rib plate 3 can decompose the thrust after being pushed, avoiding damage to the locking assembly due to excessive local stress. By setting the locking assembly to drive the back rib plate 3 to move and lock, and simultaneously linking the clamping assembly to automatically engage with the ratchet structure on the T-shaped tie rod 1, a double locking mechanism is formed. When the poured concrete generates a huge thrust on the back rib plate 3, the thrust is transmitted to the clamping assembly through the support frame 4 and the connecting column 5, and is effectively decomposed and borne by the meshing action of the ratchet block 8 and the ratchet tooth 10, which greatly reduces the local stress on the locking assembly. This device not only effectively prevents the threads from being damaged due to overload, but also significantly improves the reliability and durability of the tightening effect.

[0020] In a further embodiment of this utility model, the clamping assembly includes elastic telescopic rods 6 fixedly connected to both sides of the connecting post 5. Long plates 7 are fixedly connected to both sides of the elastic telescopic rods 6. The elastic telescopic rods 6 facilitate the connection of the long plates 7 to the connecting post 5. Both long plates 7 are provided with ratchet blocks 8. A rectangular groove 9 is opened at one end of the T-shaped pull rod 1. Multiple ratchet teeth 10 are provided on both sides of the rectangular groove 9. When the connecting post 5 enters the movable groove of the T-shaped pull rod 1, the elastic force of the elastic telescopic rods 6 drives the ratchet blocks 8 on the long plates 7 to engage with the ratchet teeth 10 in the rectangular groove 9. The snap-fit ​​mechanism ensures that when the back rib plate 3 is subjected to a counter-thrust, the force acts not only between the locking components but also between the ratchet block 8 and the ratchet tooth 10, thus decomposing the thrust. In addition, the long plate 7 is designed to be longer to ensure that when the ratchet block 8 and the ratchet tooth 10 are snapped together, the long plate 7 can be moved from the outside to separate the ratchet block 8 and the ratchet tooth 10. This allows the back rib plate 3 to be removed from the cut long steel bar after the glue is applied and after cutting the long steel bar between the back rib plate 3 and the composite plate 2, so that the next T-shaped tie rod 1 can be tightened and reused repeatedly.

[0021] In a further embodiment of this utility model, the locking assembly includes a threaded groove 11 formed on the T-shaped tie rod 1, a nut 12 threadedly connected to the threaded groove 11, the nut 12 being connected to the support frame 4 via a connecting unit, the connecting unit including a plurality of connecting rods 13 fixedly connected to the nut 12, the connecting rods 13 being slidably connected to the back rib plate 3, the back rib plate 3 being provided with grooves for the plurality of connecting rods 13 to move, so that the movement of the nut 12 can push the back rib plate 3 to move, and drive the support frame 4 to move synchronously, so as to achieve the locking of the locking assembly on the support frame 4 and the T-shaped tie rod 1.

[0022] Working principle: During operation, after the T-shaped tie rod 1 is placed between the two composite plates 2, the back rib plate 3 is placed on the top of the T-shaped tie rod 1 extending out of the composite plate 2. At this time, it is necessary to ensure that the connecting post 5 on the support frame 4 is above the arc-shaped rectangular groove 9 of the T-shaped tie rod 1. Then, press the back rib plate 3 and rotate the nut 12 so that the nut 12 rotates and moves on the threaded groove 11, which can push the back rib plate 3 closer to the composite plate 2. At the same time, the connecting post 5 is driven into the movable groove on the T-shaped tie rod 1 through the support frame 4. At the same time, the ratchet blocks 8 on the long plates 7 on both sides of the connecting post 5 engage with the ratchet teeth 10 of the rectangular groove 9, which can further increase the firmness of the back rib plate 3 when in contact with the composite plate 2.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A close-fitting control device, comprising a T-shaped tie rod (1) and two overlapping plates (2), characterized in that: The T-shaped tie rod (1) is slidably fitted with a back rib plate (3), a support frame (4) is fixedly connected to the back rib plate (3), a connecting column (5) is fixedly connected to the support frame (4), a clamping component is provided on the connecting column (5), and a locking component is also provided on the T-shaped tie rod (1). During installation, when the locking assembly drives the back rib plate (3) to move and lock, it drives the clamping assembly to engage with the T-shaped tie rod (1) so that the back rib plate (3) can decompose the thrust after being subjected to the thrust, thus avoiding damage caused by excessive local force on the locking assembly. The clamping assembly includes elastic telescopic rods (6) fixedly connected to both sides of the connecting column (5), and long plates (7) are fixedly connected to both sides of the elastic telescopic rods (6), and ratchet blocks (8) are provided on both long plates (7).

2. A close control device according to claim 1, wherein One end of the T-shaped tie rod (1) is provided with a rectangular groove (9), and multiple ratchet teeth (10) are provided on both sides inside the rectangular groove (9).

3. A close control device according to claim 1, wherein The locking assembly includes a threaded groove (11) on the T-shaped tie rod (1), and a nut (12) is threaded onto the threaded groove (11).

4. A close control device according to claim 3, wherein The nut (12) is connected to the support frame (4) through a connecting unit. The connecting unit includes multiple connecting rods (13) fixedly connected to the nut (12). The connecting rods (13) are slidably connected to the back rib plate (3).

5. A close control device according to claim 1, wherein The T-shaped tie rod (1) is made of short steel bars and long steel bars welded vertically, with the short steel bars having a diameter of 25mm and the long steel bars having a diameter of 16mm.

Images