A pre-embedded part fixing device
Patent Information
- Application Number
- CN202521832161.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-08-27
AI Technical Summary
[0002]在现有的技术中,预埋件通常直接安装于钢筋上,导致预埋件安装时需调整基础钢筋或局部切割基础部分钢筋再进行二次加固,影响工期;模板支设或混凝土浇筑时扰动钢筋,进而影响预埋件对设备安装的定位精度;固定预埋件的材料在混凝土浇筑后无法取出,导致材料浪费
[0011] The advantages and positive effects of this utility model are as follows: by adopting the above technical solution, direct contact between the embedded parts and the steel structure can be avoided, and the positioning and fixing of the embedded parts can be avoided due to disturbance of the steel structure by concrete vibration, etc. The embedded part fixing device can be reused; it has the advantages of simple structure, low processing cost, and improved construction efficiency and construction quality.
Smart Images

Figure CN224769556U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and in particular relates to a pre-embedded part fixing device. Background Technology
[0002] In existing technologies, embedded parts are typically installed directly onto reinforcing bars. This necessitates adjustments to the foundation reinforcing bars or partial cutting of the foundation reinforcing bars for secondary reinforcement during installation, impacting the construction period. Furthermore, disturbance of the reinforcing bars during formwork erection or concrete pouring affects the positioning accuracy of the embedded parts for equipment installation. Additionally, the materials used to fix the embedded parts cannot be removed after concrete pouring, leading to material waste. These technologies present several technical challenges, including the direct connection of embedded parts to the reinforcing bar structure, the inability to reuse the materials used to fix them, and the impact of reinforcing bar disturbance during construction on the positioning accuracy of the embedded parts, requiring adjustments to the reinforcing bars and affecting the overall construction period. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a pre-embedded part fixing device, which is particularly suitable for avoiding direct connection between pre-embedded parts and steel reinforcement structures, and the pre-embedded part fixing device can be quickly installed and reused.
[0004] The technical solution adopted by this utility model is: a pre-embedded part fixing device for fixing pre-embedded screws, including a positioning unit and a support unit. The positioning unit includes a positioning plate and a fixing component. Multiple pre-embedded screws are inserted through the positioning plate and fixed by the fixing component. The support unit includes a support frame body and multiple movable rods. The support frame body is surrounded by a steel reinforcement structure. Each movable rod is movably connected to the support frame body. The positioning plate is installed on the multiple movable rods.
[0005] Furthermore, the support unit also includes multiple sets of fixed rods, and multiple support seats are set on the top of the support frame body to support the fixed rods. Each movable rod is movably connected to multiple sets of fixed rods.
[0006] Furthermore, the main body of the support frame includes multiple vertical columns and horizontal connecting rods. The support base is connected to the top of the corresponding vertical column, and the multiple horizontal connecting rods are connected to each other to form a polygonal frame surrounding the steel structure. The connection point of each adjacent horizontal connecting rod is connected to the corresponding vertical column.
[0007] Furthermore, the length of the vertical support is adjustable, comprising an adjusting rod with external threads and a support assembly that can be threadedly engaged with the adjusting rod. The support assembly is connected to a horizontal connecting rod, and the top of the adjusting rod is connected to a support seat.
[0008] Furthermore, the support is U-shaped with the opening facing upwards, and the height of its sidewall is not less than the cross-sectional height of the fixing rod.
[0009] Furthermore, the fixing component includes a fixing nut that is threadedly connected to the pre-embedded screw and a washer disposed between the fixing nut and the positioning plate.
[0010] Furthermore, the surface of the positioning plate has markings for positioning.
[0011] The advantages and positive effects of this utility model are as follows: by adopting the above technical solution, direct contact between the embedded parts and the steel structure can be avoided, and the positioning and fixing of the embedded parts can be avoided due to disturbance of the steel structure by concrete vibration, etc. The embedded part fixing device can be reused; it has the advantages of simple structure, low processing cost, and improved construction efficiency and construction quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the planar structure of one embodiment of the present invention;
[0013] Figure 2 This is a schematic diagram of the elevation structure of one embodiment of the present utility model;
[0014] Figure 3 This is a three-dimensional structural schematic diagram of one embodiment of the present utility model;
[0015] Figure 4 This is a schematic diagram of the surface of the positioning plate according to another embodiment of the present invention;
[0016] In the picture:
[0017] 1. Positioning plate; 2. Reinforcing steel structure; 3. Embedded bolts.
[0018] 4. Fixing nut 5. Washer 6. Movable rod
[0019] 7. Adjusting rod; 8. Fastener; 9. Support assembly
[0020] 10. Fixing rod; 11. Support; 12. Connecting sleeve
[0021] 13. Concrete foundation; 14. Horizontal connecting rod; 15. Signage.
[0022] 16. Embedded part mounting holes Detailed Implementation
[0023] The embodiments of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, it should be understood that terms such as "installation", "connection", and "fixation" should be interpreted broadly, and can refer to direct connection, installation or fixation, or indirect connection, installation or fixation. This utility model does not limit this.
[0026] like Figures 1 to 3 The diagram shows an embodiment of a pre-embedded component fixing device of this utility model, used to fix pre-embedded screws 3. It includes a positioning unit and a support unit. The positioning unit includes a positioning plate 1 and a fixing component. Multiple pre-embedded screws 3 pass through the positioning plate 1 and are fixed by the fixing component. The support unit includes a support frame body and multiple movable rods 6. The support frame body surrounds the steel reinforcement structure 2, and each movable rod 6 is movably connected to the support frame body. The positioning plate 1 is installed on the multiple movable rods 6. Preferably, the positioning plate 1 has a pre-set number of pre-embedded component mounting holes 16 adapted to the number of pre-embedded screws 3.
[0027] This utility model allows the main body of the support frame to be erected on a concrete foundation 13, with the reinforcing steel structure independently located inside the main body of the support frame. The movable rods 6 can be freely adjusted on the main body of the support frame. The positioning plate 1 can be stably supported by adjusting the spacing between multiple movable rods 6. The fixed position of the positioning plate 1 can also be changed by moving the positions of multiple movable rods 6. The positioning plate 1 can be stably erected on multiple movable rods 6 by its own weight. During adjustment, the fixed angle of the embedded screw 3 can also be adjusted by rotating the positioning plate 1, improving the installation flexibility and positioning accuracy of the embedded screw 3. It can also prevent the embedded screw 3 from contacting the reinforcing steel structure, avoiding disturbance to the reinforcing steel structure during construction and affecting the positioning of the embedded screw. The embedded part fixing device is not affected by being poured into the reinforcing steel structure, thus preventing repeated use. Moreover, the main body of the support frame does not contact the reinforcing steel structure and is not affected by construction disturbance, ensuring a stable fixing effect. This ensures that the positioning plate 1 can be fixed to the main body of the support frame by its own weight. The device can be quickly assembled using on-site construction materials. Compared with the traditional embedded part fixing method, it can reduce welding and reinforcing steel adjustment procedures and reduce labor costs.
[0028] In this embodiment, the support unit also includes multiple sets of fixed rods 10. Multiple support seats 11 are provided on the top of the support frame body to support the fixed rods 10. Each movable rod 6 is movably connected to multiple sets of fixed rods 10. Each movable rod 6 is detachably connected to the corresponding fixed rod 10. In this embodiment, the movable rod 6 can be pressed against the upper surface of the corresponding fixed rod 10 by its own weight. Both the fixed rod 10 and the movable rod 6 are made of square tubes or square rods. In another embodiment, a limiting sleeve is slidably sleeved on the fixed rod 10. The limiting sleeve can be used to limit and fix the movable rod 6. Preferably, the limiting sleeve has a through groove to allow the movable rod 6 to pass through, and a tightening bolt is screwed into the side wall of the limiting sleeve so that the tightening bolt presses against the movable rod 6 to fix it. The gravity self-locking simplifies the assembly steps, and the adjustable limiting sleeve provides double protection for fixation.
[0029] In this embodiment, the main body of the support frame includes multiple vertical columns and horizontal connecting rods 14. A support base 11 is connected to the top of the corresponding vertical column. The multiple horizontal connecting rods 14 are interconnected to form a polygonal frame surrounding the steel reinforcement structure 2. The connection point of each adjacent horizontal connecting rod 14 is connected to the corresponding vertical column. Preferably, each vertical column is connected and locked to two corresponding horizontal connecting rods 14 via fasteners 8. The fasteners 8 can be made from prefabricated scaffolding fasteners. The vertical columns are all located outside the steel reinforcement structure and erected on a concrete foundation 13. In this embodiment, there are four vertical supports and four horizontal connecting rods 14, and the horizontal connecting rods 14 are interconnected in a grid pattern. Each vertical support is connected to the external connection point of two corresponding horizontal connecting rods via fasteners. The support seats 11 at the top of each pair of vertical supports support the two ends of a set of fixed rods 10. Each set includes one or more fixed rods 10, and the two sets of fixed rods 10 are arranged parallel to each other. Each movable rod 6 is arranged perpendicular to the fixed rod 10. In other embodiments, the number of vertical supports and horizontal connecting rods 14 can be adjusted according to construction needs. For example, multiple horizontal connecting rods 14 can be connected to form a closed hexagonal structure, which can achieve a stable support frame body connected to the vertical supports to support the movable rods 6. In this embodiment, multiple vertical supports independent of the steel structure are connected to a polygonal horizontal frame composed of multiple horizontal connecting rods 14 to form a stable support frame body. This body can be quickly assembled and fixed on the concrete foundation 13 through erection, which not only avoids direct contact between the pre-embedded bolts 3 and the steel structure, but also improves construction efficiency.
[0030] In this embodiment, the length of the vertical support column is adjustable. It includes an adjusting rod 7 with external threads and a support assembly 9 that can be threadedly engaged with the adjusting rod 7. The support assembly 9 is connected to the horizontal connecting rod 14, and the top of the adjusting rod 7 is connected to the support seat 11. Preferably, the support assembly 9 includes a support rod and a connecting sleeve 12. The connecting sleeve 12 has threads inside that are adapted to the adjusting rod 7. The adjusting rod 7 is movably inserted into the support rod and fixed by the connecting sleeve 12, thereby realizing the telescopic adjustment and fixation of the length of the vertical support column. In this embodiment, the length of the vertical support column can be freely adjusted to adjust the height of the support seat 11, which facilitates the height adjustment of the pre-embedded screw 3.
[0031] In this embodiment, the support 11 is U-shaped with the opening facing upwards and its side wall height is not less than the cross-sectional height of the fixing rod 10, so as to prevent the fixing rod 10 from shifting and to support stability.
[0032] In this embodiment, the fixing component includes a fixing nut 4 threadedly connected to the pre-embedded screw 3 and a washer 5 disposed between the fixing nut 4 and the positioning plate 1. The pre-embedded screw 3 passes through the corresponding pre-embedded part mounting hole 16 and is tightened and fixed by the washer 5 and the fixing nut 4. The diameter of the washer 5 is larger than the diameter of the pre-embedded part mounting hole 16.
[0033] The specific usage process of this embodiment is as follows:
[0034] A support unit is built outside the steel structure. The length of each vertical column is adjusted to adjust the height of the support 11. The fixing rod 10 is installed on the corresponding support 11.
[0035] Assemble each movable rod 6 with its corresponding fixed rod 10. Adjust and fix the position of each movable rod 6 according to the pre-embedded point spacing. Install the required number of pre-embedded screws 3 on the positioning plate 1 and fix them with the fixing components. Place the positioning plate 1 on the multiple movable rods 6. Confirm again whether the pre-embedded screws 3 meet the preset elevation. The elevation of the pre-embedded screws 3 can be adjusted by adjusting the extension and retraction of the adjusting rod 7 in the supporting component 9 until it meets the requirements.
[0036] Rotate the positioning plate 1 so that each pre-embedded screw 3 reaches the preset fixed position, and pour concrete.
[0037] After the concrete reaches the preset strength, the embedded fixing device is removed.
[0038] In this embodiment, a fixed rod 10 is installed on a height-adjustable support 11, and a movable rod 6 is movably assembled on the fixed rod 10. A rotatable positioning plate 1 is installed on the movable rod 6, which enables multi-directional adjustment of the height and horizontal position of the pre-embedded screw 3. The fixed angle of multiple pre-embedded screws 3 can also be adjusted by rotating the positioning plate 1. The height can be precisely adjusted by adjusting the thread height to ensure positioning accuracy.
[0039] In another embodiment, such as Figure 4 As shown, the surface of the positioning plate 1 has a mark 15 for positioning. The mark 15 is cross-shaped and has a scale. When the positioning plate 1 is placed on the corresponding movable rod 6, it can cooperate with the test equipment through the intersection of the cross center of the mark 15, which facilitates the adjustment of the position of the pre-embedded screw 3 and reduces positioning error. The test equipment can be such as a total station or a laser line projector.
[0040] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.
Claims
1. A pre-embedded part fixing device for fixing a pre-embedded screw, characterized in that: The system includes a positioning unit and a support unit. The positioning unit includes a positioning plate and a fixing component. Multiple pre-embedded screws pass through the positioning plate and are fixed by the fixing component. The support unit includes a support frame body and multiple movable rods. The support frame body is surrounded by the steel reinforcement structure. Each movable rod is movably connected to the support frame body. The positioning plate is installed on the multiple movable rods.
2. The device according to claim 1, wherein: The support unit also includes multiple sets of fixed rods, and multiple support seats are provided on the top of the support frame body to support the fixed rods. Each movable rod is movably connected to multiple sets of fixed rods.
3. The device of claim 2, wherein: The main body of the support frame includes multiple vertical columns and horizontal connecting rods. The support base is connected to the top of the corresponding vertical column. The multiple horizontal connecting rods are connected to each other to form a polygonal frame surrounding the steel structure. The connection point of each adjacent horizontal connecting rod is connected to the corresponding vertical column.
4. The embedded part fixing device according to claim 3, characterized in that: The length of the vertical support is adjustable, and it includes an adjusting rod with external threads and a support assembly that can be threadedly engaged with the adjusting rod. The support assembly is connected to the horizontal connecting rod, and the top of the adjusting rod is connected to the support seat.
5. The embedded part fixing device according to any one of claims 2-4, characterized in that: The support is U-shaped with the opening facing upwards, and the height of its side wall is not less than the cross-sectional height of the fixing rod.
6. The embedded part fixing device according to any one of claims 1-4, characterized in that: The fixing component includes a fixing nut that is threadedly connected to the pre-embedded screw and a washer disposed between the fixing nut and the positioning plate.
7. The embedded part fixing device according to any one of claims 1-4, characterized in that: The positioning plate has markings on its surface for positioning purposes.