A PCF wall bottom fixing device
By designing a movable support structure and a stable locking mechanism, the problem of poor adjustment flexibility of the PCF wall bottom fixing device was solved, enabling multi-angle and precise parameter adjustment, improving installation accuracy and construction efficiency, and ensuring the stability of the building structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-30
AI Technical Summary
Existing PCF wall bottom fixing devices are difficult to adjust precisely at multiple angles and dimensions, and lack stability, affecting construction efficiency and accuracy.
The design incorporates a movable support structure, multi-dimensional adjustable components, and a stable locking mechanism, including adjustable bolts, angle adjustment parts, and angle locking parts, to achieve precise adjustment and secure fixation of the PCF wall's angle, elevation, and level.
It improves the accuracy and construction efficiency of PCF wall installation, enhances post-installation stability, and meets the high precision and high efficiency requirements of modern prefabricated buildings.
Smart Images

Figure CN224432048U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction technology, and in particular to a PCF wall bottom fixing device. Background Technology
[0002] In prefabricated building construction, the installation accuracy of precast concrete (PCF) walls directly affects the stability and overall quality of the building structure. Currently, the bottom fixing of PCF walls mostly uses traditional brackets or pads for support and fixation. However, these traditional devices have significant technical problems in practical applications: it is difficult to achieve precise multi-angle and multi-dimensional adjustment of PCF walls. Specifically, the support structure of traditional fixing devices is usually designed with a fixed angle. When the PCF wall needs to be tilted to adapt to special building shapes or structural splicing requirements according to construction needs, existing devices cannot flexibly adjust the support angle. They can only be barely adapted by replacing pads of different specifications or cutting brackets, which is not only cumbersome but also leads to low adjustment efficiency and makes it difficult to guarantee the accuracy of angle adjustment. In addition, the fixing structure of traditional devices lacks stability. After the wall is installed, if it is disturbed by external forces or the foundation is uneven, the angle is prone to shift or loosening, requiring repeated calibration, which greatly increases the workload of construction workers, prolongs the construction period, and fails to meet the high requirements of modern prefabricated buildings for construction accuracy and efficiency.
[0003] To address this issue, a PCF wall bottom fixing device is invented to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing PCF wall bottom fixing devices, such as poor adjustment flexibility and difficulty in achieving multi-angle and precise parameter adjustment. It provides a PCF wall bottom fixing device that, through the design of a movable support structure, multi-dimensional adjustment components, and a stable locking mechanism, achieves precise adjustment and firm fixation of the angle, elevation, and level during PCF wall installation, thereby improving the installation accuracy and construction efficiency of PCF walls and ensuring the stability of the building structure.
[0005] This application provides a PCF wall bottom fixing device, which adopts the following technical solution: it includes a fixed base, a support structure movably connected to the fixed base, and a wall connection part connected to the support structure. The support structure can move relative to the fixed base to adjust the position of the wall connection part.
[0006] Optionally, the support structure includes a bracket body and a support plate. The bracket body is hinged to the fixed seat, and two mutually perpendicular support plates are connected to the bracket body.
[0007] Optionally, the wall connection includes a plurality of adjustable bolts disposed on the support plate. The adjustable bolts are used to adjust the elevation and level of the PCF plate, and a rubber pad is disposed on the side of the adjustable bolts near the PCF wall.
[0008] Optionally, the fixed base is provided with an angle adjustment component that can adjust the rotation angle of the bracket body. The angle adjustment component includes a threaded seat with a threaded hole. An adjusting screw is threaded into the threaded hole. A push rod is provided at the top of the adjusting screw. A connecting frame is hinged to the push rod. The top of the connecting frame is hinged to the bracket body.
[0009] Optionally, an angle locking component is provided between the bracket body and the fixed seat. The angle locking component includes a locking rod, a pin, and a locking hole. The locking rod is fixedly connected to the bracket body. A pin is slidably provided on the locking rod. Multiple locking holes are provided on the fixed seat along the movement direction of the locking rod. The pin is inserted into the locking hole to fix the fixed seat and the locking rod.
[0010] Optionally, the mounting base is provided with multiple mounting holes for fixing the mounting base to the foundation.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] 1. The support structure can move relative to the fixed seat. With the help of angle adjustment and angle locking components, the installation angle of the PCF wall can be flexibly adjusted to meet the angle requirements of different construction scenarios, thus solving the problem of difficult angle adjustment of traditional devices.
[0013] 2. Multiple adjustable bolts at the wall connection can be used to adjust the elevation and level of the PCF plate, and the rubber pads reduce wear on the PCF wall during adjustment, while enhancing contact stability and improving installation accuracy.
[0014] 3. The angle adjustment component achieves precise adjustment of the bracket body's rotation angle through threaded transmission. It is easy to operate and has high adjustment accuracy, making it convenient for construction personnel to quickly achieve the required angle.
[0015] 4. The angle locking component, through the cooperation of the pin and the locking hole, can firmly lock the bracket body and the fixed seat after adjustment, prevent angle deviation, and ensure the stability of the PCF wall after installation.
[0016] 5. Multiple mounting holes on the mounting base can firmly connect the device to the foundation, ensuring the load-bearing capacity of the overall structure and improving the reliability of the device during construction. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I;
[0018] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;
[0019] Figure 3 This is the front view of the device;
[0020] Figure 4 This is a schematic diagram of the angle adjustment component of this device;
[0021] The components are as follows: 1. Fixed seat; 2. Support structure; 3. Wall connection part; 4. Bracket body; 5. Support plate; 6. Adjustable bolt; 7. Rubber pad; 8. Angle adjustment component; 9. Threaded seat; 10. Threaded hole; 11. Adjusting screw; 12. Push rod; 13. Connecting bracket; 14. Angle locking component; 15. Locking rod; 16. Pin; 17. Locking hole; 18. Mounting hole. Detailed Implementation
[0022] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.
[0023] Reference Figure 1 One embodiment shown is as follows: the fixed base 1 is an L-shaped plate structure, and the support structure 2 is connected to the fixed base 1 via a hinge, allowing the support structure 2 to rotate relative to the fixed base 1 around the hinge's rotation axis; the wall connection part 3 is connected to the support structure 2 by bolts. In this embodiment, the fixed base 1 is used to fix to the foundation, providing stable support for the entire device; the movable connection of the support structure 2 allows it to flexibly adjust its angle, thereby causing the wall connection part 3 connected to it to change position to adapt to PCF walls with different installation angles.
[0024] The implementation principle of the above embodiment is as follows: When it is necessary to adjust the installation angle of the PCF wall, an external force is applied to the support structure 2, causing it to rotate relative to the fixed seat 1 around the rotation axis of the hinge. Since the wall connection part 3 is connected to the support structure 2, the rotation of the support structure 2 will drive the change of the position of the wall connection part 3, thereby achieving the initial adjustment of the PCF wall installation angle and meeting the requirements of the PCF wall installation angle under different construction scenarios.
[0025] Reference Figure 1 , Figure 2One embodiment shown is as follows: the bracket body 4 is a rigid structure in the shape of a rod or plate, one end of which is connected to the fixed seat 1 via a hinge and can rotate around the hinge pin; two support plates 5 are respectively vertically welded to the same side surface of the bracket body 4, and the two support plates 5 are perpendicular to each other. In this embodiment, the bracket body 4 serves as the main part of the support structure 2, connecting the fixed seat 1 and the support plates 5. Its rotatable characteristic allows the entire support structure 2 to be flexibly adjusted in angle; the two perpendicular support plates 5 can support the PCF wall from different directions, improving the stability of the support.
[0026] The implementation principle of the above embodiment is as follows: when the support structure 2 rotates around the hinge, the bracket body 4 drives the two mutually perpendicular support plates 5 to rotate synchronously, thereby adjusting the contact angle and position between the support plates 5 and the PCF wall. Since the two support plates 5 are perpendicular to each other, they can provide support force to the wall in two vertical directions when supporting the PCF wall, preventing the wall from shaking or shifting during installation, and enhancing the stability and reliability of the PCF wall support.
[0027] Reference Figure 1 , Figure 2 One embodiment is shown: the support plate 5 has multiple threaded holes 10, and the adjustable bolt 6 is screwed into the threaded holes through threaded engagement, allowing it to move up and down within the threaded holes; the rubber pad 7 is fixed to the end of the adjustable bolt 6 near the PCF wall by adhesive or snap-fit. In this embodiment, by rotating the adjustable bolt 6, its extension length on the support plate 5 can be changed, thereby adjusting the elevation of the PCF board; at the same time, by adjusting the extension length of the adjustable bolt 6 at different positions, the levelness of the PCF board can be adjusted; the rubber pad 7 prevents the adjustable bolt 6 from directly and rigidly contacting the PCF wall, preventing damage to the wall.
[0028] The implementation principle of the above embodiment is as follows: When installing the PCF wall, if it is necessary to adjust the elevation of the PCF board, the adjustable bolt 6 at the corresponding position can be rotated to raise or lower it within the threaded hole 10 of the support plate 5, thereby changing the height of the PCF board; when it is necessary to adjust the levelness of the PCF board, observe the levelness of the PCF board and make fine adjustments to the adjustable bolt 6 at different positions to make the PCF board level in all directions; the rubber pad 7 plays a buffering and protective role during the adjustment process. Its soft material can reduce the wear of the adjustable bolt 6 on the surface of the PCF wall, while enhancing the friction between it and the PCF wall, making the position of the adjusted PCF board more stable.
[0029] Reference Figure 1 , Figure 4One embodiment is shown as follows: the threaded seat 9 is fixed to the fixed seat 1 by welding or bolts to ensure its stability; the adjusting screw 11 is screwed into the threaded hole 10 of the threaded seat 9, and can move up and down by rotating the adjusting screw 11; one end of the push rod 12 is rotatably connected to the top of the adjusting screw 11, for example by welding; one end of the connecting frame 13 is hinged to the push rod 12 by a pin, and the other end is also hinged to the bracket body 4 by a pin. In this embodiment, by rotating the adjusting screw 11, the threaded transmission is used to make the adjusting screw 11 move up and down in the threaded hole 10, thereby driving the push rod 12 and the connecting frame 13 to move, and then pushing the bracket body 4 to rotate around the hinge point with the fixed seat 1, so as to achieve precise adjustment of the rotation angle of the bracket body 4.
[0030] The implementation principle of the above embodiment is as follows: When it is necessary to precisely adjust the rotation angle of the bracket body 4, the operator rotates the adjusting screw 11. Since the threaded seat 9 is fixed on the fixed seat 1, the rotation of the adjusting screw 11 in the threaded hole 10 is converted into vertical linear motion. The vertical movement of the adjusting screw 11 drives the push rod 12 fixed thereto to move synchronously. The push rod 12 transmits force to the bracket body 4 through the hinged connecting frame 13, causing the bracket body 4 to rotate around the hinge point with the fixed seat 1. In this way, the rotation angle of the bracket body 4 can be precisely adjusted to meet the precise requirements of the PCF wall installation angle under different construction scenarios.
[0031] Reference Figure 1 , Figure 3 , Figure 4 One embodiment is shown whereby the locking rod 15 is fixed to the bracket body 4 by welding or bolting to ensure synchronous movement. The pin 16 can slide on the locking rod 15 via a groove or sleeve. Multiple locking holes 17 are provided on the fixed base 1 corresponding to the movement trajectory of the locking rod 15, and these locking holes 17 are evenly distributed along a straight line. In this embodiment, when the bracket body 4 is adjusted to a suitable angle, the sliding pin 16 is inserted into the corresponding locking hole 17 on the fixed base 1, thereby locking the bracket body 4 to the fixed base 1 and preventing angular displacement of the bracket body 4 during subsequent construction.
[0032] The implementation principle of the above embodiment is as follows: When adjusting the installation angle of the PCF wall, the bracket body 4 rotates around the hinge point with the fixed base 1, driving the locking rod 15 fixed thereto to move synchronously. After adjusting to the required angle, the pin 16 is pushed, causing it to move along the sliding structure on the locking rod 15 and insert into the corresponding locking hole 17 on the fixed base 1. At this time, the pin 16 restricts the relative movement between the locking rod 15 and the fixed base 1. Since the locking rod 15 is fixed to the bracket body 4, the angle between the bracket body 4 and the fixed base 1 is locked, ensuring that the PCF wall maintains a stable installation angle during installation and subsequent use.
[0033] Reference Figure 1 , Figure 4 One embodiment shown is as follows: multiple mounting holes 18 are evenly provided at the four corners and edges of the fixing base 1; the fixing base 1 is tightly fixed to the foundation by means of bolts, expansion bolts, or other connecting parts passing through the mounting holes 18. In this embodiment, the multiple mounting holes 18 make the connection between the fixing base 1 and the foundation more secure, able to withstand various forces during the installation of the PCF wall, and ensure the stability of the entire fixing device.
[0034] The implementation principle of the above embodiment is as follows: When installing the fixing device, the fixing base 1 is placed at a predetermined position on the foundation, so that the mounting hole 18 corresponds to the reserved hole or embedded part on the foundation. Then, bolts, expansion bolts, and other connecting parts are passed through the mounting holes 18, and the nuts are tightened or the expansion bolts are expanded, so that the fixing base 1 is tightly fitted with the foundation, forming a stable connection. The multiple mounting holes 18 disperse the force between the fixing base 1 and the foundation, enhance the reliability of the connection, provide a stable support foundation for the supporting structure 2 and the PCF wall, and ensure that the entire fixing device will not shift or shake during the installation and use of the PCF wall.
[0035] The working principle of this device is as follows: First, the PCF wall is fixed to the foundation through the mounting holes 18 of the fixed base 1. When installing the PCF wall, it is placed on the support plate 5, and the elevation and level are adjusted using the adjustable bolts 6, while the rubber pads 7 reduce wear. When adjusting the angle, the adjusting screw 11 of the angle adjusting component 8 is rotated, causing it to move within the threaded seat 9, which drives the push rod 12 and the connecting bracket 13 to push the bracket body 4 to rotate around the fixed base 1. After adjustment, the pin 16 of the sliding angle locking component 14 is inserted into the corresponding locking hole 17 to lock the angle. The hinge connection between the bracket body 4 and the fixed base 1 ensures rotational flexibility, and the mutually perpendicular support plates 5 enhance support stability, thus achieving precise and stable installation of the PCF wall.
[0036] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A PCF wall bottom fixing device, characterized in that: It includes a fixed base (1), a support structure (2) movably connected to the fixed base (1), and a wall connection part (3) connected to the support structure (2). The support structure (2) can move relative to the fixed base (1) to adjust the position of the wall connection part (3).
2. The PCF wall bottom fixing device according to claim 1, characterized in that: The support structure (2) includes a bracket body (4) and a support plate (5). The bracket body (4) is hinged to the fixed seat (1), and two mutually perpendicular support plates (5) are connected to the bracket body (4).
3. The PCF wall bottom fixing device according to claim 2, characterized in that: The wall connection part (3) includes a plurality of adjustable bolts (6) set on the support plate (5). The adjustable bolts (6) are used to adjust the elevation and level of the PCF plate. The adjustable bolts (6) are provided with rubber pads (7) on the side of the PCF wall.
4. A PCF wall bottom fixing device according to claim 2, characterized in that: The fixed base (1) is provided with an angle adjustment component (8) that can adjust the rotation angle of the bracket body (4). The angle adjustment component (8) includes a threaded seat (9), a threaded hole (10) is provided in the threaded seat (9), an adjustment screw (11) is threadedly connected in the threaded hole (10), a push rod (12) is provided on the top of the adjustment screw (11), a connecting frame (13) is hinged on the push rod (12), and the top of the connecting frame (13) is hinged to the bracket body (4).
5. A PCF wall bottom fixing device according to claim 2, characterized in that: An angle locking component (14) is provided between the bracket body (4) and the fixed seat (1). The angle locking component (14) includes a locking rod (15), a pin (16) and a locking hole (17). The locking rod (15) is fixedly connected to the bracket body (4). The pin (16) is slidably provided on the locking rod (15). Multiple locking holes (17) are provided on the fixed seat (1) along the movement direction of the locking rod (15). The pin (16) is inserted into the locking hole (17) to fix the fixed seat (1) and the locking rod (15).
6. A PCF wall bottom fixing device according to claim 1, characterized in that: The fixing seat (1) is provided with multiple mounting holes (18) for fixing the fixing seat (1) to the foundation.