Embedded part connecting structure

Abstract

The utility model discloses an embedded part connecting structure, and relates to the technical field of embedded parts. Comprising an embedded plate and a plurality of anchor bars connected with the embedded plate. The embedded plate is detachably connected with a formwork used for concrete pouring through a plurality of bolt assemblies. An adjusting assembly is arranged between the anchor bar and the embedded plate; the adjusting assembly comprises a sliding rail and a sliding block matched with the sliding rail. The sliding rail is connected with the embedded plate, and the sliding block is connected with the anchor bar. Two sliding grooves are formed in the sliding rail, and limiting units used for limiting the sliding blocks are connected to the sliding grooves in a sliding mode. According to the utility model, the embedded plate is connected with the template through the bolt assembly, so that the positioning precision and the construction speed of the embedded part are improved; by arranging the adjusting assembly between the anchor bar and the embedded plate, the position of the anchor bar is adjustable, the problem that the anchor bar conflicts with the steel bar position of the concrete structure is solved, the position of the steel bar does not need to be adjusted, the situation that the thickness of a protective layer and the distance between the steel bars do not meet the standard requirement is avoided, and the stress performance of a concrete member is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of embedded parts technology, and in particular to an embedded parts connection structure. Background Technology

[0002] Embedded components are pre-installed components within concealed works. They are installed during the pouring of concrete structures to facilitate the subsequent installation and fixing of components or equipment. For example, curtain wall embedded components are metal assemblies used to connect and secure the building structure to the curtain wall. They typically include a rectangular embedded plate and multiple anchor bars. The conventional construction steps are: after the beam and column reinforcement bars are tied, the curtain wall embedded component is placed in the wall, and after position adjustment, it is welded to the reinforcement bars. If there are no reliable support points on the beam and column reinforcement bars, steel bars with a diameter greater than 8mm are used as a welding transition section to connect the anchoring end to the structural reinforcement bars. After the embedded component is welded, the side formwork is installed and reinforced. However, in actual construction, this method is prone to problems such as inaccurate positioning of the embedded components, leading to deviations in depth and planar position of some embedded plates. Later cleaning and repair are time-consuming and cannot meet current requirements.

[0003] To address the aforementioned issues, the article "Technology for Controlling the Positioning Accuracy of Embedded Parts in Curtain Walls" published in the April 2023 issue (No. 4) of *China Building Metal Structure* discloses an improved approach. This approach abandons the traditional method of connecting the embedded part's reinforcing steel bars to the beam and column reinforcing steel bars. Instead, the embedded part is fixed to the formwork using nails. Six 5cm nails (two on each long side and one on each short side) are nailed to the formwork at the edge of the embedded part's steel plate, with the nail tails protruding 20mm. After installation, the nail tails are bent and hooked back to the embedded plate, ensuring that the embedded part does not move vertically, horizontally, or rotate, thus improving the accuracy of its positioning. However, this method has the following problems.

[0004] 1. The nail fixing process is slow. Each nail needs to be hammered several times on-site to be fixed, which has a low degree of automation and can easily affect the project schedule.

[0005] 2. There are issues with unreliable connections of embedded parts or difficulty in disassembling the formwork. If the nails are driven too shallowly into the formwork, there may be problems with secure fixing, which could lead to questions about the embedded parts. If the nails are driven too deep into the formwork, there may be problems with difficulty in disassembling the formwork after the concrete is poured, and there may also be problems with exposed nail heads, which could potentially injure construction workers.

[0006] 3. Anchor bars may be difficult to place. Although the anchor bars in this article do not need to be connected to the steel bars of the main structure, the main components such as beams and columns where embedded parts are placed may have dense steel bars. After the anchor bars are fixedly connected to the embedded plate, their positions cannot be adjusted, which may cause difficulties in placing the anchor bars due to conflicts with the positions of the steel bars. Summary of the Invention

[0007] This utility model provides a pre-embedded component connection structure, which aims to solve the problems of slow construction speed, unreliable connection, difficulty in disassembling formwork, and difficulty in placing anchor bars in existing pre-embedded component connection structures, thereby improving the accuracy, safety, and speed of pre-embedded component construction.

[0008] To achieve the above objectives, the technical approach adopted by this utility model to solve its technical problem is as follows:

[0009] An embedded connection structure is designed to connect the embedded plate and the template with bolt assemblies, which improves construction speed and quality. By setting an adjustment component between the anchor bar and the embedded plate, the position of the anchor bar can be adjusted, avoiding the problem of position conflict between the anchor bar and the reinforcing bar.

[0010] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0011] An embedded component connection structure includes an embedded plate and multiple anchor bars connected to the embedded plate;

[0012] Multiple bolt assemblies are provided between the embedded plate and the template used for concrete pouring;

[0013] The bolt assembly is used for the detachable connection of the embedded plate and the template.

[0014] The bolt assembly includes a first bolt and a first nut;

[0015] After the first bolt passes through the embedded plate and the template in sequence, it is threadedly connected to the first nut.

[0016] The first nut is connected to the embedded plate on one side of the concrete structure.

[0017] Furthermore, an adjustment component for adjusting the position of the anchor bar is provided between the anchor bar and the embedded plate.

[0018] Furthermore, the adjustment assembly includes a slide rail and a slider that matches the slide rail;

[0019] The slide rail is connected to the embedded plate, and the slider is connected to the anchor bar;

[0020] The slide rail has two slide grooves, and a limiting unit for limiting the slider is slidably connected to the slide groove.

[0021] Furthermore, the limiting unit includes a second bolt and an I-shaped nut;

[0022] The I-shaped nut is movably connected to the slide groove;

[0023] The second bolt passes through the I-shaped nut and connects to the slider.

[0024] Furthermore, the slider has two threaded grooves that match the second bolt.

[0025] Furthermore, the slide rail has two mounting grooves that are connected to the slide groove and are matched with the I-shaped nut.

[0026] The beneficial effects of this utility model are as follows: Compared with the prior art, the improvement of this utility model lies in that...

[0027] 1. This utility model connects the embedded plate and the template with a bolt assembly, avoiding the problem of excessive deviation in the depth and planar position of the embedded plate. This not only improves the positioning accuracy of the embedded parts, but also allows the first bolt to be disassembled and assembled with a hand drill, resulting in high construction efficiency.

[0028] 2. This utility model connects the anchor bar and the embedded plate through an adjustment component, so that the position of the anchor bar can be adjusted, which solves the problem of conflict between the anchor bar and the rebar position. There is no need to adjust the rebar position, avoiding the situation where the protective layer thickness and rebar spacing do not meet the specifications, thus ensuring the stress performance of the concrete component.

[0029] 3. By setting up a slide rail, a slider, and a limiting unit, this utility model not only makes the position adjustment of the anchor bar convenient to operate, but also ensures the connection strength between the anchor bar and the embedded plate, thus ensuring the quality of the project.

[0030] 4. This utility model achieves a reliable connection between the slider and the slide rail by setting a second bolt, an I-shaped nut, and a threaded groove, and also facilitates the adjustment of the slider's position;

[0031] 5. The welding in this utility model can be carried out in advance at the processing plant, and only bolt connection is required on site, which avoids the problems of poor welding quality and slow construction speed that may exist in on-site welding, and ensures the quality and efficiency of construction. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0033] Figure 1 This is a left view of the overall structure of this utility model in Embodiment 1;

[0034] Figure 2 This is a right view of the overall structure of the present invention in Embodiment 1;

[0035] Figure 3 This is a schematic diagram of the structure of this utility model in Embodiment 2;

[0036] Figure 4 This is a schematic diagram of the adjustment component;

[0037] Figure 5yes Figure 4 AA section view in the middle;

[0038] Figure 6 This is a top view of the present invention in Embodiment 2;

[0039] In the picture:

[0040] 1. Embedded plate; 11. Through hole;

[0041] 2. Anchor bars;

[0042] 3. Template;

[0043] 4. Bolt assembly; 41. First bolt; 411. Bolt head; 412. Cutting groove; 42. First nut;

[0044] 5. Adjustment component; 51. Slide rail; 511. Slide groove; 512. Mounting groove; 52. Slider; 521. Threaded groove; 53. Limiting unit; 531. Second bolt; 532. I-shaped nut. Detailed Implementation

[0045] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments.

[0046] Example 1

[0047] refer to Figure 1-2 This utility model provides a pre-embedded component connection structure, including an embedded plate 1 and multiple anchor bars 2 welded to the embedded plate 1; multiple bolt assemblies 4 are provided between the embedded plate 1 and the template 3; the template 3 is used for temporary support and fixation of concrete during concrete pouring, preferably a wooden template; the bolt assemblies 4 are detachably connected to the embedded plate 1 and the template 3.

[0048] Furthermore, the bolt assembly 4 includes a first bolt 41 and a first nut 42; the first bolt 41 passes through the template 3 and the embedded plate 1 in sequence and is threadedly connected to the first nut 42, and the first nut 42 is located inside the concrete structure.

[0049] Furthermore, the first nut 42 is connected to the embedded plate 1 on one side within the concrete structure; preferably, it is welded in advance at the processing plant or connected using structural adhesive, which not only improves the construction speed but also facilitates the rapid disassembly of the first bolt 41 after construction is completed.

[0050] The embedded plate 1 has multiple through holes 11 that match the first bolt 41. It is preferable to open these holes when the manufacturer processes the embedded steel plate and weld the anchor bar 2 onto the embedded plate 1. This not only ensures the construction quality but also improves the construction efficiency.

[0051] Preferably, the first bolt 41 is provided with a bolt head 411, and the bolt head 411 is provided with a groove 412, so that a hand drill can be used to disassemble and assemble the first bolt 41, thereby improving construction efficiency. Specifically, the first bolt 41 is preferably an 8.8 grade external hexagonal threaded bolt with a spool length of 40mm and a diameter of 12mm, and the first nut 42 is preferably a cylindrical nut with a length of 20mm.

[0052] The principle of the embedded part connection structure in this embodiment is as follows: the mounting hole corresponding to the first bolt 41 is opened in advance at the corresponding position on the template 3. After the first bolt 41 passes through the template 3 and the embedded plate 1 in sequence, it is threadedly connected to the first nut 42 and fixed properly. This can firmly fix the embedded part to the template 3, avoiding the problems that may exist in the rough connection method of connecting the embedded part to the steel reinforcement of the concrete component, such as the gap between the embedded plate and the template, and the excessive deviation of the embedded plate depth and plane position caused by concrete vibration. It is suitable for the construction of various common embedded parts, with high positioning accuracy and fast construction speed.

[0053] Example 2

[0054] Based on Embodiment 1, in order to adjust the position of the anchor bar 2 when there is a conflict between the anchor bar and the steel reinforcement of the concrete component, and to smoothly anchor the anchor bar 2 into the concrete component, so as to ensure that the embedded part meets the anchorage requirements, Embodiment 2 sets an adjustment component 5 between the anchor bar 2 and the embedded plate 1.

[0055] refer to Figure 3-6 The adjustment component 5 includes a slide rail 51 and a slider 52 that matches the slide rail 51; the slide rail 51 is welded to the embedded plate 1 and the slider 52 is welded to the anchor bar 2; two slide grooves 511 are opened on the side of the slide rail 51 near the anchor bar 2, and a limiting unit 53 for limiting the slider 52 is slidably connected on each slide groove 511.

[0056] Furthermore, the limiting unit 53 includes a second bolt 531 and an I-shaped nut 532; the I-shaped nut 532 is slidably and rotatably connected to the slide groove 511. Specifically, the narrow waist of the I-shaped nut 532 is engaged in the slide groove 511, and the protruding parts on both sides are engaged in the slide groove 511; the second bolt 531 is threaded through the I-shaped nut 532 and then connected to the slider 52; the slider 52 has two threaded grooves 521 that match the second bolt 531 to further increase the friction and ensure the load-bearing capacity of the connection between the second bolt 531 and the slider 52.

[0057] Furthermore, two mounting grooves 512 are provided on the slide rail 51. The mounting grooves 512 are close to the anchor bar 2 and are connected to the slide groove 511. The slide groove 511 is matched with the I-shaped nut 532.

[0058] In this embodiment, the principle of the adjusting component 5 is as follows: The I-shaped nut 532 is placed into the slide groove 511 through the mounting groove 512. Then, the second bolt 531 passes through the I-shaped nut 532, causing its screw to enter the threaded groove 521 of the slider 52 until the second bolt 531 can no longer be rotated. At this point, the slider 52 abuts against the side of the slide rail 51 away from the I-shaped nut 532 and is threadedly connected to the second bolt 531. The friction between the two positions limits the slider 52. The I-shaped nut 532 limits the second bolt 531 along the axial direction of the anchor bar 2; the abutting of the slider 52 against the slide rail 51 limits the second bolt 531 along the radial direction of the anchor bar 2; the mutual cooperation of the second bolt 531, the I-shaped nut 532, and the slider 52 achieves a reliable connection between the anchor bar 2 and the slide rail 51, thereby achieving a reliable connection between the anchor bar 2 and the embedded plate 1. To enable the slider 52 to slide within the slide rail 51, there is a certain gap between the slider 52 and the slide rail 51. The second bolt 531 is threadedly connected to the I-shaped nut 532, allowing the slider 52 to press against the slide rail 51 and ensuring the friction between them.

[0059] It should be noted that the length of the groove 511 needs to be determined according to the specific situation to ensure that the spacing between the anchor bars 2 meets the relevant specifications and avoids affecting the connection strength. The setting of the adjustment component 5 is mainly suitable for situations where the reinforcement in concrete members is too dense, especially suitable for use in frame columns and frame beams with large stress.

[0060] Application Examples

[0061] Embedded components are widely used in the construction industry. By embedding them in concrete components, a reliable installation foundation can be provided for subsequent components or equipment. Common embedded components include escalator embedded components, steel structure space frame support embedded components, canopy embedded components, and curtain wall embedded components. When there is a large amount of reinforcing steel in a concrete component, the anchor bars of the embedded component may conflict with the steel bars in position. Common solutions include appropriately adjusting the position of the steel bars or bending the anchor bars appropriately. However, adjusting the position of the steel bars may affect the load-bearing performance of the concrete component if the protective layer thickness or the steel bar spacing does not meet the specifications, potentially leading to engineering accidents. This utility model's embedded component connection structure has high positioning accuracy and has been applied in the No. 1 office building and No. 2 production plant of the Consinee High-end Consumer Products R&D and Intelligent Manufacturing project. It has increased the installation qualification rate of curtain wall embedded components from 70.43% to 99.6%, achieving good practical results and possessing strong promotional value.

[0062] The following describes the method of using a pre-embedded component connection structure of this utility model, taking the construction of curtain wall pre-embedded components as an example.

[0063] Step 1: Provide the processing manufacturer with detailed information on the embedded parts so that the manufacturer can prepare and weld the required construction materials in advance.

[0064] Step 2: After the steel bars of the concrete component are tied, measure the position of the embedded part on the template 3 and open the installation hole. After the first bolt 41 passes through the template 3 and the embedded plate 1, tighten the first bolt 41 with a power drill to make it firmly connected with the first nut 42.

[0065] Step 3: Place the I-shaped nut 532 into the slide groove 511 through the mounting groove 512, then pass the second bolt 531 through the I-shaped nut 532 and into the threaded groove 521 of the slider 52; then place the anchor bar 2 into the steel reinforcement of the concrete component, so that the embedded plate 1 and the template 3 are in the appropriate position. If there is a positional conflict between the anchor bar 2 and the steel reinforcement, adjust the position of the anchor bar 2 to drive the slider 52 and the limiting unit 53 on the slide rail 51 so that the anchor bar 2 avoids the steel reinforcement. Finally, tighten the second bolt 531 to limit the slider 52.

[0066] Step 4: Complete the formwork and pour concrete. After the concrete meets the strength and age requirements, use a power drill to remove the first bolt 41 and remove the formwork 3. The embedded plate 1, anchor bar 2, first nut 42 and adjustment component 5 are left in the concrete component. The formwork 3 and the first bolt 41 are reused.

[0067] Step 5: Fill the through hole 11 with foaming agent to ensure the appearance of the embedded plate 1.

[0068] It should be understood that the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A pre-embedded part connecting structure, comprising a buried plate (1) and a plurality of anchor bars (2) connected with the buried plate (1); characterized in that A plurality of bolt assemblies (4) are arranged between the buried plate (1) and a formwork (3) for concrete pouring; The bolt assemblies (4) are used for detachable connection of the buried plate (1) and the formwork (3); An adjusting assembly (5) for adjusting the position of the anchor bars (2) is arranged between the anchor bars (2) and the buried plate (1); The adjusting assembly (5) comprises a sliding rail (51) and a sliding block (52) matched with the sliding rail (51); two sliding grooves (511) are formed in the sliding rail (51), and a limiting unit (53) for limiting the sliding block (52) is slidably connected to the sliding grooves (511); The limiting unit (53) comprises a second bolt (531) and a I-shaped nut (532); The I-shaped nut (532) is movably connected to the sliding grooves (511); The second bolt (531) is connected with the sliding block (52) after penetrating through the I-shaped nut (532).

2. The pre-embedded member connecting structure according to claim 1, characterized by: The bolt assembly (4) comprises a first bolt (41) and a first nut (42); The first bolt (41) penetrates through the buried plate (1) and the formwork (3) in sequence and is threadedly connected with the first nut (42); The first nut (42) is connected with one side of the buried plate (1) in the concrete structure.

3. The pre-embedded part connecting structure according to claim 2, characterized in that: The sliding rail (51) is connected with the buried plate (1), and the sliding block (52) is connected with the anchor bar (2).

4. The pre-embedded member connecting structure according to claim 3, characterized by: Two threaded grooves (521) matched with the second bolt (531) are formed in the sliding block (52).

5. The pre-embedded member connecting structure according to claim 4, characterized by: Two mounting grooves (512) are formed in the sliding rail (51), the mounting grooves (512) and the sliding grooves (511) are in communication with each other, and the I-shaped nut (532) is matched with the mounting grooves (512).

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