Counter pull connection device for the assembly of a multi-ribbed wall panel
By designing a tie-connector, a stable connection structure is formed by combining connecting steel bars, connecting boxes, and closure components. This solves the problem of insufficient connection strength of ribbed wall panels, improves impact resistance and construction efficiency, enhances load-bearing capacity, and extends service life.
Patent Information
- Application Number
- CN202311413164.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-27
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2043-10-27
AI Technical Summary
In the existing technology, the connection strength between the ribbed wall panels is too low, the resistance to axial and radial loads is weak, and cracks and breaks are prone to occur at the connection. Moreover, the construction and removal of the formwork is time-consuming and labor-intensive, which affects the construction progress.
A tie-bar connection device is adopted, which forms a stable connection structure by combining connecting steel bars, connecting boxes and closures. After concrete fluid is poured in, it wraps around the connecting steel bars to form an integral connection, which improves the impact resistance. The torque is transmitted through the tie sleeve and preload sleeve to enhance the connection strength and load-bearing capacity.
It improves the connection strength and impact resistance between closely spaced ribbed wall panels, reduces construction time, improves construction efficiency, ensures that the joints are not prone to breakage or cracking, enhances load-bearing capacity, and extends service life.
Smart Images
Figure CN117386044B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ribbed wall panel technology, specifically to a tie-down connection device for assembling ribbed wall panels. Background Technology
[0002] Prefabricated construction refers to buildings where prefabricated building components and accessories are manufactured in a factory, transported to the construction site, and assembled on-site using reliable connection methods. Commonly used prefabricated components in prefabricated construction include ribbed wall panels and ribbed floor slabs. During on-site construction, the ribbed wall panels are hoisted to the construction site using a hoisting mechanism. A formwork is then erected between two ribbed wall panels, and the formwork, combined with the ribbed wall panels on both sides, forms a grouting tank. Concrete is poured into the grouting tank, and as the concrete solidifies, it forms concrete blocks. These concrete blocks connect the two ribbed wall panels. However, the concrete blocks have relatively weak radial impact resistance, and the connection points between the concrete blocks and the two ribbed wall panels have limited resistance to impact. With poor impact resistance, when the concrete block is subjected to high external stress loading, cracks and fractures are likely to occur at the connection between it and the ribbed wall panel. In some cases, the concrete block and the ribbed wall panel may even be misaligned. Moreover, after the concrete block is poured, it is only bonded to the two ribbed wall panels and does not combine the two ribbed wall panels into a whole. This reduces the ductility and seismic resistance of the two walls. In addition, the formwork needs to be removed after the concrete block is formed. The entire removal process is time-consuming and labor-intensive, which affects the construction progress. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a tie-connection device for assembling ribbed wall panels, which solves the problems of low connection strength and weak resistance to axial and radial loads between adjacent ribbed wall panels in existing technologies.
[0004] To achieve the above objectives, the present invention provides a tie-connector for assembling ribbed wall panels, comprising a plurality of ribbed wall panels, with connecting grooves formed between adjacent ribbed wall panels. Each ribbed wall panel has connecting reinforcing bars connected to the top and bottom of its two side walls. The device includes two connecting boxes for placement in the connecting grooves, with the two connecting boxes respectively located at the top and bottom of the connecting grooves. Each of the two connecting boxes has a mating groove extending along its height direction. Each connecting box has a through groove corresponding to the position of an adjacent connecting reinforcing bar for the connecting reinforcing bar to pass through the mating groove. Each connecting box is provided with a tie member for pulling the two connecting reinforcing bars that have passed through the mating groove relative to each other. A connecting gap is formed between the two connecting boxes. A sealing member is provided between the two connecting boxes for cooperating with the two ribbed wall panels to close the connecting gap and form a connecting cavity. The connecting gap and the two mating grooves combine to form a grouting cavity for external concrete to be poured in.
[0005] The advantages of the above technical solution are as follows: After the operator hoists the first ribbed wall panel to the construction site, a connecting box is placed on one side of the ribbed wall panel. At this time, the connecting steel bars at the bottom of the first ribbed wall panel pass through the through-slot into the mating slot of the connecting box. Then, the operator hoists the second ribbed wall panel to be paired to the construction site and moves the second ribbed wall panel horizontally using a hook, so that the two ribbed wall panels are on the same horizontal plane. Then, the operator continues to move the ribbed wall panel so that the connecting steel bars on the second ribbed wall panel pass through the through-slot into the mating slot of the connecting box. At this time, the two connecting steel bars are coaxially arranged in the mating slot. The operator pulls the two connecting steel bars with a tie rod, that is, the tie rod applies a torque to the connecting steel bars. The connection is transmitted from the ribbed wall panel to the connecting box, achieving the tension of the two connecting steel bars, thus realizing the initial connection and tension of the two ribbed wall panels. Then, the operator places another connecting box directly above the already installed connecting box. At this point, both connecting boxes are in the connecting groove and on the same horizontal plane. Due to the through-groove design, the second connecting box needs to be rotated during installation so that the connecting steel bars at the top of the two ribbed wall panels can be inserted into the through-grooves on both sides of the connecting box. Then, the connecting box is rotated again to its upright position. The operator then seals the connection gap between the two connecting boxes using a sealing component, allowing the connection gap and the two mating grooves to form a grouting cavity. This completes the installation of the two connecting boxes. The connection groove between the two ribbed wall panels is sealed by two connecting boxes and a closure. When pouring concrete, the operator simply pours it into the injection cavity through the matching groove of the connecting box located at the top of the connection groove. The concrete fills the injection cavity, and after it solidifies into a concrete block, the entire connection is complete. In this technique, the concrete, after being poured into the injection cavity, encases the connecting steel bars. The concrete fills the matching grooves of the two connecting boxes. After the concrete solidifies into a concrete block, the two connecting boxes, the connecting steel bars, and the concrete block combine into a single unit. This effectively allows the two ribbed wall panels to form a unified whole through the connection steel bars and the concrete block, thereby improving the connection between the two ribbed wall panels. The design enhances strength and impact resistance. One end of the connecting steel bar is located within the ribbed wall panel, while the other end is within the concrete block, achieving a stable connection between the two ribbed wall panels and the concrete block. This means the two ribbed wall panels and the concrete block form a unified whole. When a single ribbed wall panel is subjected to a high-torque impact, the torque is distributed to the concrete block and the two ribbed wall panels on both sides, thereby improving the ribbed wall panel's resistance to high-load impacts and its service life. Simultaneously, the concrete block and connecting steel bar enhance the connection strength and impact resistance between the connecting box and the ribbed wall panel, preventing breakage or cracking at the connection point when subjected to high-torque impacts, thus avoiding connection failure.In the aforementioned technology, connecting boxes and their supporting components are installed between each individual ribbed wall panel and the ribbed wall panels on both sides, allowing several ribbed wall panels on the same horizontal plane to form a whole, thereby improving impact resistance and service life. Furthermore, this technology eliminates the need to remove the sealing components and connecting boxes after the concrete fluid forms the concrete block, allowing the connecting boxes and sealing components to combine with the concrete block to form a whole, further improving the load-bearing capacity of the concrete block. Simultaneously, the design that eliminates the need for removal reduces the time and effort required for dismantling, thus improving construction efficiency and accelerating the construction progress.
[0006] The present invention further comprises: the tie member including a tie sleeve disposed in the mating groove, the tie sleeve having tie holes at both ends, the two tie holes corresponding one-to-one with two connecting steel bars passing through the mating groove, the inner peripheral wall of the tie hole having a first thread circumferentially formed along the length of the tie sleeve, the end of the connecting steel bar passing through the mating groove being the tie end, the outer peripheral wall of the tie end having a second thread circumferentially formed along the length of the connecting steel bar, the first thread being threadedly engaged with the corresponding and adjacent second thread.
[0007] The advantages of adopting the above technical solution are as follows: After the first ribbed wall panel is installed and the connecting box is set, the operator can first insert the tie sleeve into the mating groove and thread it with one of the connecting steel bars. Then, the operator moves the second ribbed wall panel horizontally, so that the connecting steel bar of the second ribbed wall panel passes through the slot into the mating groove. At this time, the connecting steel bars of the first ribbed wall panel and the connecting steel bars of the second ribbed wall panel are coaxially aligned. Then, the operator unscrews the tie sleeve, so that the tie sleeve gradually moves towards the connecting steel bar of the second ribbed wall panel until one end of the tie sleeve is threaded with the connecting steel bar of the first ribbed wall panel and the other end is threaded with the connecting steel bar of the second ribbed wall panel. At this time, the two connecting steel bars are connected by the tie sleeve, thereby achieving stable placement of the two connecting steel bars in the mating groove. This ensures that when the concrete fluid is poured in, it can wrap around the two connecting steel bars and the tie sleeve, achieving a stable connection between the two ribbed wall panels and the concrete block. Simultaneously, when one of the ribbed wall panels is subjected to external stress impact, the torque can be transmitted to the other ribbed wall panel through the connecting steel bars and tie sleeves, thus dispersing the torque and indirectly improving the load impact resistance and service life of the ribbed wall panel. When one of the ribbed wall panels is subjected to an axial loading torque from the opposite direction of the connecting box, the torque is partially transmitted to the other ribbed wall panel through the tie sleeves and connecting steel bars due to the loading and influence of the tie sleeves. That is, when a single ribbed wall panel is subjected to an axial loading torque, adjacent ribbed wall panels can share the torque, i.e., the tie sleeves achieve the tension effect of the two connecting steel bars, thereby improving the axial loading resistance of the ribbed wall panel. Since the connecting box at the top of the connecting groove is placed later, it is difficult to insert the tie sleeve in the box into the gap between the two connecting steel bars. Therefore, before installing the tie sleeve, the tie sleeve can be first fitted on the connecting steel bar at the top of one of the ribbed wall panels to facilitate the subsequent connection of the steel bars.
[0008] The present invention further comprises: the sealing member including two opposing sealing plates; a mating plate protrudes from the top wall of the connecting box at the bottom of the connecting groove and the bottom wall of the connecting box at the top of the connecting groove, corresponding to the positions of the two sealing plates; each mating plate forms a stepped surface with the connecting box; the top wall of the sealing plate abuts against the stepped surface of the connecting box at the top of the connecting groove; the bottom wall of the sealing plate abuts against the stepped surface of the connecting box at the bottom of the connecting groove; and the inner wall of the sealing plate abuts against the outer wall of the mating plate.
[0009] The advantages of adopting the above technical solution are as follows: After the operator installs the connecting box at the bottom of the connecting groove, the operator installs two sealing plates on the connecting box. At this time, the bottom walls of the two sealing plates are respectively abutted and fitted with their corresponding step surfaces. Then, the operator installs the second connecting box at the top of the connecting groove. After flipping and adjusting the second connecting box, the second connecting box will move slightly downward under its own weight, so that the top walls of the two sealing plates abut and fit with their corresponding step surfaces on the second connecting box. This achieves the cooperation between the two connecting boxes and the two sealing plates, that is, the formation of the grouting cavity, which facilitates the subsequent grouting of concrete fluid. In the above technology, under the influence of the gravity of the connecting box at the top of the connecting groove, the gravity will be applied to the sealing plates, thereby achieving the stable placement of the sealing plates between the two connecting boxes. This ensures that the sealing plates will not flip outward after the concrete fluid is grouted, causing the concrete fluid to overflow.
[0010] The present invention further comprises: two first pairs of pull rods disposed on the connecting box located at the bottom of the connecting groove; one of the first pairs of pull rods is disposed on the inner wall of the left side of the mating groove and inclined toward the inner wall of the sealing plate located on the right side of the connecting groove; the other of the first pairs of pull rods is disposed on the inner wall of the right side of the mating groove and inclined toward the inner wall of the sealing plate located on the left side of the connecting groove; a second pair of pull rods is disposed on the inner wall of both sealing plates; the two first pairs of pull rods correspond one-to-one with the two second pairs of pull rods; the two first pairs of pull rods are coaxially aligned with their corresponding second pairs of pull rods; a first preload sleeve is disposed between each of the two first pairs of pull rods and their corresponding second pairs of pull rods; one end of the first preload sleeve is threaded into the first pair of pull rods, and the other end is threaded into the second pair of pull rods; the two first preload sleeves are staggered and their inclination directions are opposite.
[0011] The advantages of the above technical solution are as follows: When one of the sealing plates is installed, the first pair of tie rods on the sealing plate are aligned with the corresponding second pair of tie rods in the connecting box. At this time, the operator can screw in the first preload sleeve to connect the first pair of tie rods and the second pair of tie rods. Then, the operator installs the second sealing plate, again aligning the first pair of tie rods on the sealing plate with the corresponding second pair of tie rods in the connecting box. The operator then connects the first pair of tie rods and the second pair of tie rods using the first preload sleeve. This means that the two sealing plates are stably placed between the two connecting boxes through the cooperation of the two sets of first and second pair tie rods. Simultaneously, the two preload sleeves, the two first pair of tie rods, and the two second pair of tie rods apply a force towards the injection cavity to the two sealing plates. Furthermore, because the inner wall of the sealing plate is in contact with the outer wall of the mating plate, this ensures stable placement of the two sealing plates between the two connecting boxes. The two sealing plates are not only securely placed between the two connecting boxes, but also apply a force towards the grouting cavity. This force is a preload, which is released outward when the concrete solidifies into a concrete block. This preload counteracts the force released when the concrete solidifies, ensuring that the sealing plates will not separate from the connecting boxes and cause the concrete to overflow. The connection and cooperation of the two first pairs of tie rods and the two second pairs of tie rods ensures that the sealing plates will not tip over, thus improving the stability of the two sealing plates between the two connecting boxes. At the same time, when the concrete solidifies into a concrete block, it will wrap around the first and second pairs of tie rods, thereby improving the concrete block's resistance to axial and radial loads, and thus improving the overall strength of the concrete block. This indirectly improves the connection strength between the two ribbed wall panels and the concrete block, thereby ensuring the transmission of force.
[0012] The invention further comprises: two third pairs of pull rods on the connecting box located at the top of the connecting groove; one of the third pairs of pull rods is located on the inner wall of the left side of the mating groove and is inclined towards the inner wall of the sealing plate located on the right side of the connecting groove; the other third pair of pull rods is located on the inner wall of the right side of the mating groove and is inclined towards the inner wall of the sealing plate located on the left side of the connecting groove; a fourth pair of pull rods is provided on the inner walls of both sealing plates; the two third pairs of pull rods correspond one-to-one with the two fourth pairs of pull rods; the two third pairs of pull rods are coaxially aligned with the corresponding fourth pairs of pull rods; a second preload sleeve is provided between each of the two third pairs of pull rods and the corresponding fourth pairs of pull rods; one end of the second preload sleeve is threaded into the third pair of pull rods, and the other end is threaded into the fourth pair of pull rods; the two second preload sleeves are staggered and the two second preload sleeves are inclined in opposite directions.
[0013] The advantages of adopting the above technical solution are as follows: After the connecting box at the top of the connecting groove is installed, the two third pairs of tie rods in the connecting box are coaxially aligned with their respective fourth pairs of tie rods. The operator screws in the second preload sleeve, so that the second preload sleeve connects the third pairs of tie rods with the fourth pairs of tie rods. That is, the two sealing plates are stably placed between the two connecting boxes through the cooperation of the two sets of third pairs of tie rods and fourth pairs of tie rods. At the same time, the two second preload sleeves, the two third pairs of tie rods, and the two fourth pairs of tie rods apply a force to the two sealing plates in the direction of the injection cavity. Because the inner wall of the sealing plate is abutted against the outer wall of the mating plate, the two sealing plates can be stably placed between the two connecting boxes and can also apply force in the direction of the injection cavity. The force applied is a preload, which is the outward force released when the concrete solidifies into a concrete block. This preload counteracts the force released when the concrete solidifies, ensuring that the sealing plate will not separate from the connecting box and cause concrete leakage. The connection of two third pairs of tie rods and two fourth pairs of tie rods ensures that the sealing plate will not tip over, thus improving the stability of the two sealing plates between the two connecting boxes. Simultaneously, when the concrete solidifies into a concrete block, it will wrap around the third and fourth pairs of tie rods, thereby improving the concrete block's resistance to axial and radial loads, and thus increasing the overall strength of the concrete block. This indirectly improves the connection strength between the two ribbed wall panels and the concrete block, ensuring the transmission of force.
[0014] The present invention further includes: both the first preload sleeve and the second preload sleeve are provided with injection holes for injecting concrete fluid.
[0015] The advantage of adopting the above technical solution is that the setting of the injection hole in the above technology further improves the connection between the concrete fluid and the first preload sleeve and the second preload sleeve, that is, after the concrete fluid solidifies into a concrete block, it improves the connection strength between the concrete block and the first preload sleeve and the second preload sleeve.
[0016] The present invention further comprises: a limiting groove is horizontally formed on the step surface; a limiting protrusion is provided on the sealing plate at the corresponding position of the limiting groove for insertion and cooperation with the limiting groove; a sealing strip is provided between the side wall of the limiting protrusion and the inner wall of the limiting groove; the sealing strip is made of water-absorbing and expanding rubber material.
[0017] The advantages of adopting the above technical solution are: the insertion and cooperation of the limiting protrusion and the limiting groove in the above technology realizes the fixation of the sealing plate on the connecting box, thereby improving the stability and connection strength of the two sealing plates between the two connecting boxes. In the above technology, the sealing strip is made of water-absorbing and expanding rubber. Concrete fluid contains water molecules. When the concrete fluid wants to overflow through the gap between the limiting protrusion and the limiting groove, the sealing strip will gradually expand and squeeze the gap between the limiting protrusion and the limiting groove to prevent the concrete fluid from overflowing, while improving the connection strength between the limiting protrusion and the limiting groove.
[0018] The present invention further includes a feature where the junction between the outer wall of the sealing plate and the outer wall of the connecting box is reinforced by welding.
[0019] The advantages of adopting the above technical solution are: after the sealing plate is installed and before the concrete fluid is poured, the junction between the outer wall of the sealing plate and the outer wall of the connecting box is reinforced by welding, which further improves the connection strength between the sealing plate and the connecting box and prevents the concrete fluid from overflowing.
[0020] The present invention further includes a waterproof and heat-insulating coating applied between the outer wall of the sealing plate and the outer wall of the ribbed wall panel.
[0021] The advantage of adopting the above technical solution is that the waterproof and heat-insulating coating in the above technology improves the heat insulation and waterproof performance between the sealing plate and the ribbed wall panel. Attached Figure Description
[0022] Figure 1 This is a three-dimensional view of the present invention in its installed state;
[0023] Figure 2 for Figure 1 Remove the 3D view of the ribbed wall panels;
[0024] Figure 3 for Figure 2 Remove the 3D view of the concrete block;
[0025] Figure 4 for Figure 1 A three-dimensional view of the connecting box located at the bottom of the connecting slot;
[0026] Figure 5 for Figure 1 A three-dimensional view of the bottom of the connecting box located at the top of the connecting slot;
[0027] Figure 6 This is a three-dimensional view of the connection status of the connecting steel bars in this invention;
[0028] Figure 7 This is a simplified three-dimensional view of the tie rod connection state in this invention. Detailed Implementation
[0029] This invention provides a tie-connector for assembling ribbed wall panels 1, comprising a plurality of ribbed wall panels 1, with connecting grooves 11 formed between adjacent ribbed wall panels 1, and connecting reinforcing bars 12 connected to the top and bottom of each side wall of each ribbed wall panel 1, including two connecting boxes 2 for placement in the connecting grooves 11, the two connecting boxes 2 being respectively located at the top and bottom of the connecting grooves 11, each of the two connecting boxes 2 having a mating groove 21 extending through it along its height direction, and each connecting box 2 having a through groove 22 corresponding to the position of an adjacent connecting reinforcing bar 12 for the connecting reinforcing bar 12 to pass through the mating groove 21, the connecting box 2 being provided with tie members for pulling the two connecting reinforcing bars 12 passing through the mating groove 21 relative to each other, and a connection being formed between the two connecting boxes 2. A sealing member is provided between the two connecting boxes 2 to cooperate with the two closely ribbed wall plates 1 to close the connection gap and form a connection cavity. The connection gap and the two mating grooves 21 combine to form a grouting cavity 23 for external concrete to be poured in. The tie member includes a tie sleeve 24 disposed in the mating groove 21. Both ends of the tie sleeve 24 are provided with tie holes 241. The two tie holes 241 correspond one-to-one with the two connecting steel bars 12 that pass through the mating groove 21. A first thread 242 is provided circumferentially on the inner peripheral wall of the tie hole 241 along the length direction of the tie sleeve 24. One end of the connecting steel bar 12 that passes through the mating groove 21 is the tie end. A second thread 121 is provided on the outer peripheral wall of the tie end along the length direction of the connecting steel bar 12. The first thread 242 42 is threadedly engaged with the corresponding and adjacent second thread 121. The closure includes two opposing sealing plates 4. On the top wall of the connecting box 2 at the bottom of the connecting groove 11 and the bottom wall of the connecting box 2 at the top of the connecting groove 11, corresponding to the positions of the two sealing plates 4, there are protruding mating plates 25. Each mating plate 25 forms a stepped surface 251 with the connecting box 2. The top wall of the sealing plate 4 abuts against the stepped surface 251 of the connecting box 2 at the top of the connecting groove 11, and the bottom wall of the sealing plate 4 abuts against the stepped surface 251 of the connecting box 2 at the bottom of the connecting groove 11. The inner wall of the sealing plate 4 abuts against the outer wall of the mating plate 25. Two first pair of pull rods 41 are provided on the connecting box 2 at the bottom of the connecting groove 11, one of which... The first pair of pull rods 41 is disposed on the inner wall of the left side of the mating groove 21 and is inclined toward the inner wall of the sealing plate 4 located to the right of the connecting groove 11. The other first pair of pull rods 41 is disposed on the inner wall of the right side of the mating groove 21 and is inclined toward the inner wall of the sealing plate 4 located to the left of the connecting groove 11. A second pair of pull rods 42 is disposed on the inner wall of each of the two sealing plates 4. The two first pairs of pull rods 41 and the two second pairs of pull rods 42 correspond one-to-one. The two first pairs of pull rods 41 and the corresponding second pairs of pull rods 42 are coaxially aligned. A first preload sleeve 43 is disposed between each of the two first pairs of pull rods 41 and the corresponding second pairs of pull rods 42. One end of the first preload sleeve 43 is threaded into the first pair of pull rods 41, and the other end is threaded into the second pair of pull rods 42.Two first preload sleeves 43 are staggered and inclined in opposite directions. Two third pairs of tie rods 44 are provided on the connecting box 2 at the top of the connecting groove 11. One third pair of tie rods 44 is located on the left inner wall of the mating groove 21 and inclined towards the inner wall of the sealing plate 4 on the right side of the connecting groove 11. The other third pair of tie rods 44 is located on the right inner wall of the mating groove 21 and inclined towards the inner wall of the sealing plate 4 on the left side of the connecting groove 11. A fourth pair of tie rods 45 is provided on the inner walls of both sealing plates 4. The two third pairs of tie rods 44 and the two fourth pairs of tie rods 45 correspond one-to-one. The two third pairs of tie rods 44 and their corresponding fourth pairs of tie rods 45 are coaxially aligned. A second preload sleeve is provided between each of the two third pairs of tie rods 44 and their corresponding fourth pairs of tie rods 45. 46. One end of the second preload sleeve 46 is threaded into the third pair of tie rods 44, and the other end is threaded into the fourth pair of tie rods 45. The two second preload sleeves 46 are staggered and their inclination directions are opposite. Both the first preload sleeve 43 and the second preload sleeve 46 have injection holes for concrete fluid injection. A limiting groove 252 is horizontally formed on the stepped surface 251. The sealing plate 4 has a limiting protrusion 47 corresponding to the limiting groove 252 for insertion into the limiting groove 252. A sealing strip is provided between the side wall of the limiting protrusion 47 and the inner wall of the limiting groove 252. The sealing strip is made of water-absorbing and expanding rubber. The junction between the outer wall of the sealing plate 4 and the outer wall of the connecting box 2 is reinforced by welding. A waterproof and heat-insulating coating is applied between the outer wall of the sealing plate 4 and the outer wall of the ribbed wall panel.
[0030] The concrete block described in the above technology is identified as 5 in the accompanying drawings.
[0031] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.
Claims
1. A counter-pulling connecting device for assembling a multi-ribbed wallboard, comprising a plurality of multi-ribbed wallboards, a connecting groove being formed between adjacent multi-ribbed wallboards, and a connecting steel bar being connected to the top and bottom of the side walls of each multi-ribbed wallboard, characterized in that: The utility model provides a connecting box for connecting two connecting slots, the connecting box is provided with a matching slot along the height direction, and the connecting box is provided with a through slot corresponding to the position of the adjacent connecting steel bars, the connecting box is provided with a pair of pulling pieces for pulling the two connecting steel bars, and the connecting box is provided with a connecting gap between the two connecting boxes, and the connecting gap is closed by the closing piece to form a connecting cavity.
2. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 1, characterized in that: The pair of pulling pieces includes a pulling sleeve arranged in the matching slot, and the pulling sleeve is provided with a pulling hole at both ends, the two connecting steel bars are one-to-one corresponding to the two pulling holes, a first thread is circumferentially arranged on the inner wall of the pulling hole along the length direction of the pulling sleeve, one end of the connecting steel bar is a pulling end, a second thread is arranged on the outer wall of the pulling end along the length direction of the connecting steel bar, and the first thread is threadedly connected with the corresponding and adjacent second thread.
3. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 1, characterized in that: Two third pairs of pull rods are arranged on the connecting box at the top of the connecting groove, one of the third pairs of pull rods is arranged on the left inner wall of the matching groove and is arranged obliquely towards the inner wall of the sealing plate on the right side of the connecting groove, and the other third pair of pull rods is arranged on the right inner wall of the matching groove and is arranged obliquely towards the inner wall of the sealing plate on the left side of the connecting groove, fourth pairs of pull rods are arranged on the two inner walls of the sealing plates, the two third pairs of pull rods correspond to the two fourth pairs of pull rods one by one, the two third pairs of pull rods are coaxially aligned with the corresponding fourth pairs of pull rods, and second preloading sleeves are arranged between the two third pairs of pull rods and the corresponding fourth pairs of pull rods, one end of the second preloading sleeve is threadedly connected with the third pair of pull rods, the other end is threadedly connected with the fourth pair of pull rods, the two second preloading sleeves are arranged alternately, and the two second preloading sleeves are arranged oppositely in the oblique direction.
4. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 3, characterized in that: The first preloading sleeve and the second preloading sleeve are both provided with pouring holes for pouring concrete fluid.
5. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 1, characterized in that: A limiting groove is horizontally arranged on the step surface, the sealing plate is provided with a limiting convex strip corresponding to the position of the limiting groove for plug-in cooperation with the limiting groove, a sealing strip is arranged between the side wall of the limiting convex strip and the inner wall of the limiting groove, and the sealing strip is made of water-absorbing and expanding rubber material.
6. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 1, characterized in that: The junction of the outer wall of the sealing plate and the outer wall of the connecting box is reinforced by welding process.
7. A mutual pull connecting device for use in the assembly of a multi-ribbed wall panel according to claim 1, characterized in that: A waterproof and heat-insulating coating is coated between the outer wall of the sealing plate and the outer wall of the ribbed wall panel.
Citation Information
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