Detachable pull rod for solid concrete
By designing a detachable pull rod for solid concrete, the concrete surface damage caused by cutting the screw after removing the mold in the traditional method is solved, and a higher construction quality and environmentally friendly construction concept is achieved.
Patent Information
- Application Number
- CN202421728042.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In solid concrete construction, the traditional method of reinforcement of the pulling screw formwork requires welding of the screw rod and the exposed screw rod needs to be cut off after the mold is removed, which can easily cause damage to the concrete surface and affect the construction quality.
A removable pull rod for solid concrete is designed, including a first screw, a tapered piece, a positioning block and a second screw, through a pre-opening design of small holes and assembly, the step of cutting out the exposed screw is avoided, and the disassembly process is simplified by an isolation layer and a reusable design.
It reduces the risk of damage to concrete surfaces, ensures the verticality and linear aesthetics of the overall structure, reduces material waste and construction costs, and reduces environmental pollution by welding operations.
Smart Images
Figure CN222924123U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of concrete pouring, and particularly relates to a detachable tie rod for solid concrete. Background Art
[0002] In the prior art, people generally connect the screw rod and the steel bar by welding, and when it is necessary to disassemble the screw rod, a gas cutting method is used to cut it off.
[0003] In the construction of solid-section concrete, the traditional method of using tie rods to reinforce formwork usually involves welding screw rods at both ends of the steel bars and fixing them by the method of internal bracing and external pulling. However, this method has deficiencies in the precise positioning of the formwork and ensuring the straightness of the formwork. In addition, since the screw rods need to be exposed for fixing, the exposed screw rods need to be cut off subsequently, and the concrete surface is easily damaged during this process, thereby affecting the appearance quality of the concrete and the overall construction effect. Utility Model Content
[0004] By providing a detachable tie rod for solid concrete in the embodiments of this application, the technical problem in the prior art that after formwork removal, it is necessary to cut off the exposed screw rods, and the concrete surface is easily damaged during the cutting process, affecting the construction quality of the concrete appearance, is solved.
[0005] The embodiments of this application provide a detachable tie rod for solid concrete, including a first screw rod, a conical member, a positioning block, and a second screw rod; the conical member is arranged at the end of the first screw rod and is provided with a first internal thread; the second screw rod is provided with a first external thread corresponding to the first internal thread, one end of which is threadedly connected to the side of the conical member away from the first screw rod, and the other end of which is welded to the structural main reinforcement; a second external thread is arranged on the side of the first screw rod away from the conical member; isolation layers are arranged on the part of the first screw rod extending into the formwork and the outer wall of the conical member; the positioning block is provided with a second internal thread corresponding to the second external thread, the positioning block is sleeved on the outer wall of the second screw rod, and the positioning block is threadedly connected to the back rib of the formwork.
[0006] In a possible implementation manner, the positioning block is of a circular structure.
[0007] In a possible implementation manner, a plurality of convex blocks are arranged on the side of the positioning block away from the conical member;
[0008] The plurality of convex blocks are arranged radially on the side of the positioning block away from the conical member.
[0009] In a possible implementation, a hexagonal nut is provided on the side of the positioning block away from the conical member, and the hexagonal nut is provided with a third internal thread corresponding to the second external thread; a plurality of the bumps are arranged circumferentially on the hexagonal nut.
[0010] In a possible implementation, there are two of the bumps, and they are arranged oppositely.
[0011] In a possible implementation, the detachable tie rod for solid concrete further includes a sleeve; the sleeve is sleeved on the outer wall of the first screw rod and is fixedly connected to one end of the conical member away from the second screw rod.
[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects:
[0013] The detachable tie rod for solid concrete provided in the embodiments of the present application includes a first screw rod, a conical member, a positioning block and a second screw rod. In actual operation, small holes are pre-opened on the formwork; one end of the second screw rod is inserted into the first internal thread of the conical member, so that the first screw rod and the second screw rod are combined into one body. Subsequently, the combined body is passed through the small holes on the formwork and extended into the interior of the formwork, and the other end of the second screw rod is welded to the structural main reinforcement. Then, the positioning block is sleeved on the second external thread of the first screw rod, and the formwork backing is tightened by rotating the positioning block.
[0014] After the concrete is poured and completed, first use a wrench to loosen the positioning block to separate it from the formwork backing. Then, use a wrench to unscrew the first screw rod and the conical member respectively, and at this time the formwork can be easily removed. It should be noted that in the present application, the part of the first screw rod extending into the formwork and the outer wall of the conical member are both coated with a release agent to form an isolation layer, which greatly facilitates the subsequent disassembly work.
[0015] By this method, we avoid the step of cutting off the exposed screw rod in the traditional method, thereby reducing the damage that may be caused to the concrete surface during the cutting process, and ensuring the perpendicularity and linear beauty of the overall structure. After the formwork is removed, the conical holes formed on the structure are blocked with cement mortar of the same grade as the concrete, which is not only beautiful but also prevents the possible corrosion problem of the exposed part after the traditional screw rod is cut, further improving the appearance quality of the structure.
[0016] In addition, the first screw rod, the conical member and the positioning block in the present application are all designed to be reusable, which not only reduces material waste but also reduces construction costs. At the same time, since the amount of welding work is reduced, the pollution of the welding work to the environment is also correspondingly reduced, reflecting the concept of environmental protection construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present application. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.
[0018] Figure 1 Structural schematic diagram of the detachable tie rod for solid concrete provided by the embodiment of the present application;
[0019] Figure 2 Structural schematic diagram of the conical part provided by the embodiment of the present application;
[0020] Figure 3 Structural schematic diagram of the positioning block provided by the embodiment of the present application.
[0021] Reference numerals: 1 - first lead screw; 11 - second external thread; 2 - conical part; 21 - first internal thread; 3 - positioning block; 31 - convex block; 32 - hexagonal nut; 321 - third internal thread; 4 - second lead screw; 5 - sleeve. Detailed implementation manners
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.
[0023] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0024] An embodiment of the present application provides a detachable tie rod for solid concrete, as Figures 1 to 3 shown. The detachable tie rod for solid concrete includes a first screw rod 1, a tapered member 2, a positioning block 3, and a second screw rod 4. The tapered member 2 is disposed at the end of the first screw rod 1 and is provided with a first internal thread 21. The second screw rod 4 is provided with a first external thread corresponding to the first internal thread 21, one end of which is threadedly connected to the side of the tapered member 2 away from the first screw rod 1, and the other end of which is welded to the structural main reinforcement. A second external thread 11 is provided on the side of the first screw rod 1 away from the tapered member 2. An isolation layer is provided on both the portion of the first screw rod 1 extending into the formwork and the outer wall of the tapered member 2. The positioning block 3 is provided with a second internal thread corresponding to the second external thread 11. The positioning block 3 is sleeved on the outer wall of the second screw rod 4, and the positioning block 3 is threadedly connected to the formwork backing rib, which can improve the stability of the formwork.
[0025] It should be noted that in actual operation, small holes are pre-drilled in the formwork; one end of the second screw rod 4 is inserted into the first internal thread 21 of the tapered member 2, so that the first screw rod 1 and the second screw rod 4 are combined into one body. Subsequently, the combined body is passed through the small holes in the formwork, extended into the formwork interior, and the other end of the second screw rod 4 is welded to the structural main reinforcement. Then, the positioning block 3 is sleeved on the second external thread 11 of the first screw rod 1, and the formwork backing rib is tightened by rotating the positioning block 3.
[0026] After the concrete is poured, first use a wrench to loosen the positioning block 3 to separate it from the formwork backing rib. Then, use a wrench to unscrew the first screw rod 1 and the tapered member 2 respectively, and at this time the formwork can be easily removed. It should be noted that in this application, an isolation agent is applied to both the portion of the first screw rod 1 extending into the formwork and the outer wall of the tapered member 2 to form an isolation layer, which greatly facilitates the subsequent disassembly work.
[0027] By this method, we avoid the step of cutting off the exposed screw rod in the traditional method, thereby reducing the damage that may be caused to the concrete surface during the cutting process, and ensuring the perpendicularity and linear beauty of the overall structure. After the formwork is removed, a cement mortar with the same grade as the concrete is used to seal the tapered holes formed on the structure, which is both beautiful and prevents the possible rust problem of the exposed part after the traditional screw rod is cut, further improving the appearance quality of the structure.
[0028] In addition, the first screw rod 1, the tapered member 2, and the positioning block 3 in this application are all designed to be reusable, which not only reduces material waste but also lowers the construction cost. At the same time, since the welding workload is reduced, the pollution of the welding operation to the environment is also correspondingly reduced, reflecting the concept of environmentally friendly construction.
[0029] Further, after the combined body extends through the small hole into the template, check whether there is a gap between the template and the first lead screw 1. If there is a gap, double-sided tape can be used for stuffing to avoid slurry leakage.
[0030] Further, the front section of the combined body is a conical part, which makes it easier to adjust the template when installing the template, and well ensures the verticality of the structure and the overall linear shape.
[0031] In the embodiment of the present application, the positioning block 3 is of a circular structure.
[0032] It should be noted that the circular structure can increase the contact area with the back brace of the template, thereby improving the stability of the overall structure.
[0033] In the embodiment of the present application, a plurality of convex blocks 31 are provided on the side of the positioning block 3 away from the conical part 2. The plurality of convex blocks 31 are arranged radially on the side of the positioning block 3 away from the conical part 2.
[0034] It should be noted that when it is inconvenient to use a wrench to screw the positioning block 3 in a narrow space, the convex blocks 31 can be knocked by various tools, so that the positioning block 3 can be removed more quickly.
[0035] In the embodiment of the present application, a hexagonal nut 32 is provided on the side of the positioning block 3 away from the conical part 2. The hexagonal nut 32 is provided with a third internal thread 321 corresponding to the second external thread 11. The plurality of convex blocks 31 are arranged circumferentially on the hexagonal nut 32.
[0036] In the embodiment of the present application, there are two convex blocks 31, which are arranged oppositely.
[0037] In the embodiment of the present application, the detachable tie rod for solid concrete further includes a sleeve 5. The sleeve 5 is sleeved on the outer wall of the first lead screw 1 and is fixedly connected to one end of the conical part 2 away from the second lead screw 4.
[0038] It should be noted that the sleeve 5 in the embodiment of the present application can improve the rigidity of the first lead screw 1.
[0039] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments.
[0040] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.
Claims
1. A detachable tie rod for solid concrete, characterized in that: It comprises a first screw rod (1), a tapered member (2), a positioning block (3) and a second screw rod (4); The tapered member (2) is arranged at the end of the first screw rod (1) and is provided with a first internal thread (21); The second screw rod (4) is provided with a first external thread corresponding to the first internal thread (21), one end of which is threadedly connected to a side of the tapered member (2) away from the first screw rod (1), and the other end of which is welded to the main structural reinforcement; A second external thread (11) is provided on a side of the first screw rod (1) away from the tapered member (2); The portion of the first screw rod (1) extending into the template and the outer wall of the conical member (2) are both provided with an isolation layer; The positioning block (3) is provided with a second internal thread corresponding to the second external thread (11); the positioning block (3) is sleeved on the outer wall of the second screw rod (4); and the positioning block (3) is threadedly connected to the back edge of the template.
2. The detachable tie rod for solid concrete according to claim 1, characterized in that: The positioning block (3) is a circular structure.
3. The detachable tie rod for solid concrete according to claim 2, characterized in that: A plurality of protrusions (31) are provided on a side of the positioning block (3) away from the conical member (2); The plurality of protrusions (31) are radially arranged on a side of the positioning block (3) away from the conical member (2).
4. The detachable tie rod for solid concrete according to claim 3, characterized in that: A hexagonal nut (32) is provided on a side of the positioning block (3) away from the conical member (2), and the hexagonal nut (32) is provided with a third internal thread (321) corresponding to the second external thread (11); A plurality of protrusions (31) are arranged in the circumferential direction of the hexagonal nut (32).
5. The detachable tie rod for solid concrete according to claim 3, characterized in that: There are two protrusions (31) which are arranged opposite to each other.
6. The detachable tie rod for solid concrete according to claim 1, characterized in that: Also includes a sleeve (5); The sleeve (5) is sleeved on the outer wall of the first screw rod (1) and is fixedly connected to an end of the tapered member (2) away from the second screw rod (4).