Old wall screw component

Abstract

An old wall screw component comprises a screw, a cone nut, a clamp shaped like a Chinese character'shan 'and a nut, the screw comprises a pre-buried section and a turnover section, the small end of the cone nut is in threaded connection with the pre-buried section, the large end of the cone nut is in threaded connection with the turnover section, the other end of the turnover section is in threaded connection with the nut, the cone nut is arranged on the turnover section in a sleeving mode, and the clamp shaped like the Chinese character'shan' is arranged on the nut. The embedded section is arranged between the nut and the cone nut, and the embedded section and the cone nut are both embedded in a wall body. Potential quality hazards such as joint staggering and slurry leakage after concrete pouring at the construction joints can be reduced, part of components can be recycled, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model relates to a screw rod component for old walls. Background Technology

[0002] During the pouring of concrete walls, due to limitations in construction techniques and actual site conditions, it is usually impossible to complete the pouring of the entire wall in one go, and it is necessary to carry out the construction in sections. Although this sectioned construction method is a necessary means to meet the actual needs of construction, it inevitably creates construction joints in the wall. As the junction of the concrete pouring, if the construction joints are not handled properly, they will become weak links in the wall structure.

[0003] The quality of construction joint treatment plays a decisive role in the integrity and appearance of the wall. From an integrity perspective, poorly treated construction joints can easily lead to stress concentration when the wall is subjected to various loads, weakening the overall load-bearing capacity of the wall, reducing its stability against external forces, and even causing a series of quality problems such as cracking and leakage, seriously threatening the structural safety of the building. From an appearance perspective, poorly treated construction joints can result in defects such as misalignment and unevenness on the wall surface, greatly affecting the aesthetics of the wall and failing to meet modern residents' pursuit of a high-quality residential appearance.

[0004] Currently, traditional tie rods are still widely used for fixing existing walls during construction. However, this method has several drawbacks in practical application. First, the installation and dismantling are cumbersome, requiring significant manpower and time, leading to low efficiency, prolonged construction time, and increased costs. Second, traditional tie rods are typically single-use products and cannot be recycled after wall construction, resulting in resource waste and contradicting current energy-saving and environmentally friendly building principles. Third, removing traditional tie rods leaves holes in the wall, which are difficult to seal, and improper sealing can easily lead to wall leaks. Fourth, the difficulty in precisely controlling the flatness and verticality of the wall during construction with traditional tie rods results in poor appearance at construction joints, affecting the overall aesthetics of the wall and failing to meet residents' demands for a high-quality residential appearance. In summary, the shortcomings of traditional tie rods in terms of construction efficiency, resource utilization, post-construction treatment, and construction joint formation effect urgently require a more advanced and efficient solution to improve the treatment quality of construction joints in concrete walls during building construction. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a new type of old wall tie rod component that reduces quality issues such as misalignment and grout leakage after concrete pouring at construction joints, allows for the recycling of some components, and lowers construction costs.

[0006] To achieve the above objectives, this utility model first proposes a wall threaded rod component, including a threaded rod, a cone-shaped nut, a mountain-shaped clamp, and a nut. The threaded rod includes a pre-embedded section and a reusable section. The pre-embedded section is threadedly connected to the small end of the cone-shaped nut, and the reusable section is threadedly connected to the large end of the cone-shaped nut. The nut is threadedly connected to the other end of the reusable section. The cone-shaped nut is fitted onto the reusable section and positioned between the nut and the cone-shaped nut. Both the pre-embedded section and the cone-shaped nut are pre-embedded in the wall.

[0007] In this embodiment, the embedded section is T-shaped.

[0008] In this embodiment, the two ends of the turnover section are respectively provided with a first threaded section and a second threaded section, and the pre-embedded section includes a T-shaped rod and a third threaded section set on the T-shaped rod; the pre-embedded section is threaded to the small end of the cone body through the third threaded section, one end of the turnover section is threaded to the large end of the cone body through the second threaded section, and a nut is threaded to the first threaded rubber section at the other end.

[0009] In this embodiment, the threads of the first thread segment and the second thread segment are designed with different specifications, while the threads of the second thread segment and the third thread segment have the same specifications.

[0010] In this embodiment, the cone-shaped mother includes a PVC outer shell and a detachable sleeve coaxially mounted inside the PVC outer shell.

[0011] In this embodiment, the outer PVC shell of the cone-shaped mother is frustum-shaped, the sleeve is provided with a threaded through hole, and the pre-embedded section and the turnover section of the screw are respectively.

[0012] With the above structure, this utility model has the following advantages:

[0013] 1. The screw of this device is divided into an independent pre-embedded section and a reusable section. The pre-embedded section and the reusable section are connected by a cone-shaped nut, which allows the pre-embedded section and the reusable section to be separated and reused, as well as the components connected to the reusable section. After the pre-embedded section is pre-embedded into the wall or beam, the reusable section, the cone-shaped nut and the mountain-shaped clamp work together to stabilize and fix the formwork, thereby reducing the gaps between the formwork, reducing the risk of misalignment and leakage during concrete pouring, improving the quality of construction joint treatment and construction quality.

[0014] 2. Although the cone-shaped nut of this device is pre-embedded in the wall or beam along with the pre-embedded section, the cone-shaped nut is equipped with a PVC shell. On the one hand, the non-stick property of the PVC shell ensures that the cone-shaped nut can be easily and smoothly removed from the wall or beam for recycling. On the other hand, after removing the cone-shaped nut, a "flared mouth" is directly formed on the wall or beam, eliminating the need for secondary roughening when sealing the bolt hole, thus facilitating the sealing of bolt holes on concrete exterior walls.

[0015] 3. The embedded section of this device is T-shaped. On the one hand, it facilitates connection with the steel bars in the wall or beam during the embedding process. On the other hand, it can strengthen the connection between the embedded section and the concrete and prevent the risk of falling off later.

[0016] 4. The reusable section, U-shaped clamp, and nut of this device can be disassembled and reused after the pre-embedded section is used up. The PVC shell of the cone-shaped nut is detachably connected to the sleeve. Even if the PVC shell is damaged, only the PVC shell needs to be replaced, ensuring that costs are controllable. Compared with existing methods, the cone-shaped nut, U-shaped clamp, and nut of this device can all be reused, reducing material waste and greatly reducing construction costs.

[0017] 5. This device features detachable screws, clear installation steps, and quick and easy operation. Compared to traditional methods that use tie rods and cutting to fix the template, which are cumbersome and require subsequent re-sealing of the screw holes, this device effectively improves construction efficiency, shortens the construction period, meets the demands of modern construction for speed and efficiency, and enhances overall construction effectiveness.

[0018] In summary, this device can effectively control the forming effect of two sections of concrete that are not poured simultaneously in the vertical direction, reduce quality risks such as misalignment and leakage after concrete pouring at construction joints, and has a tight connection and convenient construction. Some components can be recycled, reducing construction costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is an exploded view of the present invention.

[0021] In the attached diagram: 1. Screw; 11. Turnover section; 111. First threaded section; 112. Second threaded section; 12. Embedded section; 121. Third threaded section; 122. T-shaped rod; 2. Nut; 3. Mountain-shaped clamp; 4. Conical nut. Detailed Implementation

[0022] 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.

[0023] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] like Figure 1 , 2 As shown, a type of old wall threaded rod component includes a threaded rod 1, a cone-shaped nut 4, a mountain-shaped clamp 3, and a nut 2. The threaded rod 1 includes an embedded section 12 and a turnover section 11. The two ends of the turnover section 11 are respectively provided with a first threaded section 111 and a second threaded section 112. The embedded section 12 is T-shaped and includes a T-shaped rod 121 and a third threaded section 122 provided on the T-shaped rod 121.

[0025] The embedded section 12 is threaded to the small end of the cone-shaped mother 4 via a third threaded section. One end of the turnover section 11 is threaded to the large end of the cone-shaped mother 4 via a second threaded section, and a nut 2 is threaded onto the first threaded rubber section of the other end. The cone-shaped mother 4 is fitted onto the turnover section 11 and placed between the nut 2 and the cone-shaped mother 4. The embedded section 12 is used for pre-embedding in the wall. The T-shaped rod 121 on the embedded section 12 facilitates connection with the reinforcing bars in the wall or beam during pre-embedding and strengthens the connection between the embedded section 12 and the concrete to prevent the risk of detachment later.

[0026] The cone-shaped mother 4 includes a PVC outer shell and a detachable sleeve coaxially installed inside the PVC outer shell. The outer shell of the cone-shaped mother 4 is frustum-shaped. The sleeve has threaded through holes axially penetrating the large and small ends of the cone-shaped mother 4. The embedded section 12 and the reusable section 11 of the screw 1 are threadedly connected to both ends of the sleeve, thereby connecting the embedded section 12 and the reusable section 11 of the screw 1 through the cone-shaped mother 4. The PVC outer shell of the cone-shaped mother 4 can directly form a "flared mouth" on the cast wall after pouring, eliminating the need for secondary roughening when sealing the screw 1 hole, thus facilitating the sealing of the screw 1 hole in the concrete exterior wall. On the other hand, the non-stick property of the PVC outer shell to concrete ensures that the cone-shaped mother 4 can be removed from the embedded section 12 for recycling, further saving costs. Moreover, the detachable connection between the PVC outer shell and the sleeve ensures that even if the PVC outer shell is damaged, only the PVC outer shell needs to be replaced, ensuring cost control.

[0027] In this embodiment, the threads of the first threaded section and the second threaded section are designed with different specifications to adapt to the different connection requirements of the cone-shaped nut 4 and the nut. The threads of the second threaded section and the third threaded section have the same specifications, which facilitates the connection of the same cone-shaped nut 4.

[0028] When using this device, firstly, the screw 1 is disassembled. After connecting the pre-embedded section 12 to the small end of the cone-shaped mother 4, the whole formed by the pre-embedded section 12 and the cone-shaped mother 4 is pre-embedded into the wall or beam. Specifically, during pre-embedding, the hole at the corresponding position of the pre-embedded section 12 is made on the erected template. The size of the hole matches the size of the turnover section 11. Then, the turnover section 11 is passed through the template and connected to the large end of the cone-shaped mother 4. The cone-shaped mother 4 and the mountain-shaped clip 3 are clamped on the inner and outer sides of the template respectively. At the same time, the mountain-shaped clip 3 is supported on the double steel pipe or other template main keel on the outer side of the template. Then, the mountain-shaped clip 3 is tightened by the nut 2, so that the cone-shaped mother 4 is tightly attached to the inner side of the template. This completes the positioning of the pre-embedded section 12. Then, the pre-embedded section 12 is tied together with the reinforcing plate. Finally, concrete is poured to pre-embed the pre-embedded section 12 in the wall or beam. The large end of the cone-shaped mother 4 pre-embedded by the above method is flush with the wall surface.

[0029] During subsequent pouring construction, the location of the aforementioned embedded section 12 can serve as a fixing point for the construction joint position when the formwork is laid out. Thus, by using the embedded section 12 as a fixing point for the mountain-shaped clip 3, the formwork can be effectively fixed, the gaps between the formwork can be reduced, and the stability of the formwork at the construction joint position can be ensured. This reduces the risk of misalignment and leakage during concrete pouring and improves the quality of construction joint treatment. After the embedded section 12 is used up, the reusable section 11, the mountain-shaped clip 3, and the nut 2 can all be disassembled and reused. Furthermore, the cone-shaped nut 4 can also be unscrewed from the embedded section 12 for continued reuse, further saving costs.

[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An old wall screw member, characterized by, The device includes a screw (1), a cone-shaped nut (4), a mountain-shaped clamp (3), and a nut (2). The screw (1) includes a pre-embedded section (12) and a turnover section (11). The small end of the cone-shaped nut (4) is threaded with the pre-embedded section (12), and the large end of the cone-shaped nut (4) is threaded with the turnover section (11). The other end of the turnover section (11) is threaded with the nut (2). The cone-shaped nut (4) is fitted onto the turnover section (11) and placed between the nut (2) and the cone-shaped nut (4). Both the pre-embedded section (12) and the cone-shaped nut (4) are pre-embedded in the wall.

2. Old wall screw member according to claim 1, characterized in that: The pre-embedded section (12) is T-shaped.

3. Old wall screw member according to claim 2, characterized in that: The turnover section (11) has a first threaded section (111) and a second threaded section (112) at both ends respectively. The pre-embedded section (12) includes a T-shaped rod (122) and a third threaded section (121) set on the T-shaped rod (122). The pre-embedded section (12) is threaded to the small end of the cone body (4) through the third threaded section (121). One end of the turnover section (11) is threaded to the large end of the cone body (4) through the second threaded section (112). A nut (2) is threaded on the first threaded rubber section at the other end.

4. A old wall screw member according to claim 3, characterized in that: The threads of the first thread segment (111) and the second thread segment (112) are designed with different specifications, while the threads of the second thread segment (112) and the third thread segment (121) have the same specifications.

5. Old wall screw member according to any one of claims 1 to 4, characterized in that: The cone body (4) includes a PVC outer shell and a removable sleeve coaxially mounted inside the PVC outer shell.

6. An old wall screw member according to claim 5, characterised in that: The outer PVC shell of the cone body (4) is frustum-shaped. The sleeve is provided with a threaded through hole. The pre-embedded section (12) and the turnover section (11) of the screw (1) are respectively threaded to both ends of the sleeve.

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