Formwork positioning device for installation of external formwork for slipform construction

Abstract

This utility model relates to the field of building construction technology, specifically disclosing an external formwork installation and positioning device for slipform construction. It includes a construction platform located outside the external formwork, with a construction fence along the edge of the platform. Multiple installation supports are positioned between the construction fence and the external formwork. Each installation support includes a side reinforcement plate, with two positioning rods at the upper end of the side reinforcement plate. A positioning bracket is positioned between the two positioning rods, and a groove A is formed on the lower end face of the positioning bracket. A bolt clamping element for fixing the formwork is located inside groove A, and a bolt pressing element for pressing down the formwork is located at the top of groove A. After the positioning bracket is lowered, it presses down on the edge of the external formwork through groove A. Together with the bolt pressing element and the bolt clamping element, it forms a multi-point fixation of the external formwork, which can evenly distribute the lateral pressure generated during concrete pouring, ensuring that the external formwork will not deform or shift during pouring. By enhancing the overall stability of the external formwork, the vertical accuracy of the chimney structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an external formwork installation and positioning device for slipform construction. Background Technology

[0002] In recent years, with the increasing number of high-rise buildings, new structures, and special projects in my country, especially in the construction of reinforced concrete chimneys and circular structures, traditional formwork erection and cast-in-place concrete have gradually become outdated and cannot meet the needs of modern development. Exploring a new construction method for reinforced concrete chimneys is of great significance, and slipform construction has significant advantages and is more rational in the construction of chimneys, silos, and other structures. Slipform engineering technology is an engineering technology in my country's cast-in-place concrete structure engineering characterized by high mechanization, fast operation speed, small site occupation, strong structural integrity, good seismic performance, guaranteed safety, and significant comprehensive environmental and economic benefits. It eliminates fixed formwork, transforming fixed, static formwork into sliding, movable steel formwork, thus eliminating the need for extensive fixed formwork erection techniques. Only string lines, lasers, sonar, and ultrasonic waves are used as reference systems for structural elevation, position, and direction, allowing for the continuous completion of strip-shaped structures or components in one operation. Due to the outstanding advantages of slipform, its application in the construction of reinforced concrete chimneys will be faster, more economical, and safer.

[0003] For example, patent application number CN201821057832.7 discloses a single-sided variable diameter sliding membrane construction device for a pressure regulating tower, including a sliding membrane lifting device that can be movably sleeved on a sliding membrane support device, a template device that can be detachably fixed on the sliding membrane lifting device, and a template slope adjustment device that can be movably fixed on the sliding membrane lifting device. The template slope adjustment device is connected to the outer template of the template device, and the space between the inner template and the outer template of the template device is a concrete filling space.

[0004] The external formwork installation and positioning device is convenient for the formwork to be put in and taken out. However, since the external formwork uses side reinforcement support, but its top is not effectively fixed, when a large amount of concrete is poured at once, the lateral pressure of the concrete will cause the top of the formwork to shift and warp outward due to the lack of restraint. This results in the top concrete pouring boundary being out of control and dimensional deviations, which need to be optimized. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes an external formwork installation and positioning device for slipform construction, thereby overcoming the shortcomings of existing devices.

[0006] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an external formwork installation and positioning device for slipform construction, including a construction platform set on the outside of the external formwork, a construction fence set on the edge of the construction platform, and multiple installation brackets set between the construction fence and the external formwork, with the installation brackets fixedly connected to the construction fence;

[0007] The mounting bracket includes a side reinforcement plate, with two positioning rods at the upper end of the side reinforcement plate. The positioning rods are fixedly connected to the side reinforcement plate, and a positioning bracket is provided between the two positioning rods. The left and right sides of the positioning bracket are provided with positioning guide structures that support the up and down adjustment of the positioning bracket.

[0008] The lower end face of the positioning bracket is provided with a clamping groove A, which is located above the edge of the outer template. The inner side of the clamping groove A is provided with a bolt clamping member for fixing the template, and the top of the clamping groove A is provided with a bolt pressing member for pressing down the template.

[0009] A further improvement is that the positioning guide structure includes a sliding sleeve, which is sleeved on the outside of the positioning rod and slidably connected to the positioning rod. The sliding sleeve is fixedly installed on the left and right sides of the positioning card seat, and the sliding sleeve is provided with bolt fixing parts for fixing the sliding sleeve.

[0010] A further improvement is that the bolt fixing component includes a fixing bolt, which is assembled on the side of the sliding sleeve away from the outer template. The fixing bolt is screwed into the sliding sleeve and threadedly connected to the positioning hole opened on the outside of the positioning rod.

[0011] A further improvement is that the outer side of the positioning rod has multiple positioning holes, and each positioning hole is evenly arranged along the height of the positioning rod.

[0012] A further improvement is that the side reinforcement plate is provided with multiple reinforcing threaded rods for fixing the outer template. The reinforcing threaded rods are threadedly connected to the side reinforcement plate, and the outer template has a threaded groove on the outside that matches the reinforcing threaded rods.

[0013] A further improvement is that the clamping component includes a first positioning bolt and a third positioning bolt, which are assembled on the left and right sides of the positioning seat. The first positioning bolt and the third positioning bolt are screwed into the outer template at the ends closest to the outer template.

[0014] A further improvement is that the bolt clamping component includes a second positioning bolt, which is assembled on the upper end of the positioning bracket. The lower end of the second positioning bolt is screwed into the clamping groove A. A pressure block is provided at the lower end of the second positioning bolt. The pressure block is rotatably connected to the second positioning bolt. A groove B matching the upper edge of the outer template is opened at the bottom of the pressure block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] After the positioning bracket is lowered, it will press the edge of the outer formwork through the clamping groove A. Together with the bolt clamping component and the bolt holding component, it forms a multi-point fixation of the outer formwork, which can evenly distribute the lateral pressure generated during concrete pouring, ensuring that the outer formwork will not deform or shift during pouring. By enhancing the overall stability of the outer formwork, the vertical accuracy of the chimney structure is guaranteed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the template in this utility model.

[0019] Figure 2 This is a structural diagram of the side reinforcement plate in this utility model.

[0020] Figure 3 This is a structural diagram of the positioning rod in this utility model.

[0021] Figure 4 This is a structural diagram of the second positioning bolt in this utility model.

[0022] The components include: 1. External formwork; 2. Construction fence; 3. Construction platform;

[0023] 4. Mounting bracket; 41. Side reinforcement plate; 42. Positioning rod; 43. Positioning hole;

[0024] 5. Inner formwork; 6. Inner support frame; 7. Reinforcing rods;

[0025] 8. Positioning bracket; 81. Clamping groove A; 82. First positioning bolt; 83. Second positioning bolt; 831. Pressure block; 832. Clamping groove B; 84. Third positioning bolt;

[0026] 9. Sliding sleeve; 91. Fixing bolt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] according to Figure 1 ,2 As shown in Figures 3 and 4, this embodiment proposes an external formwork installation and positioning device for slipform construction, including a construction platform 3 located on the outside of the external formwork 1, a construction fence 2 on the edge of the construction platform 3, and multiple installation brackets 4 between the construction fence 2 and the external formwork 1, with the installation brackets 4 fixedly connected to the construction fence 2; the inner formwork 5 is located in the center of the external formwork 1, and the inner side of the inner formwork 5 is supported by an inner support frame 6.

[0029] The mounting bracket 4 includes a side reinforcement plate 41. The upper end of the side reinforcement plate 41 is provided with two positioning rods 42. The positioning rods 42 are fixedly connected to the side reinforcement plate 41. A positioning bracket 8 is provided between the two positioning rods 42. The left and right sides of the positioning bracket 8 are provided with positioning guide structures that support the up and down adjustment of the positioning bracket 8.

[0030] The positioning bracket 8 is slidably set between two positioning rods 42. The positioning guide structure supports the positioning bracket 8 to be adjusted up and down. The positioning bracket 8, which can be adjusted up and down, can flexibly adapt to the position requirements of the outer formwork 1 at different construction stages, thus improving the convenience of operation.

[0031] The lower end face of the positioning bracket 8 is provided with a clamping groove A81, which is located above the edge of the outer template 1. The inner side of the clamping groove A81 is provided with a bolt clamping member for fixing the template, and the top of the clamping groove A81 is provided with a bolt pressing member for pressing down the template.

[0032] After the positioning bracket 8 is lowered, the positioning bracket 8 will press the edge of the outer template 1 through the clamping groove A81. Together with the top bolt clamping part and the side bolt clamping part, it forms a multi-point fixation of the outer template 1, which can evenly distribute the lateral pressure generated during concrete pouring, ensuring that the outer template will not deform or shift during pouring. By enhancing the overall stability of the outer template 1, the vertical accuracy of the chimney structure is guaranteed.

[0033] Regarding location guidance mechanisms:

[0034] The positioning guide structure includes a sliding sleeve 9, which is sleeved on the outside of the positioning rod 42 and slidably connected to the positioning rod 42. The sliding sleeve 9 is fixedly installed on the left and right sides of the positioning bracket 8, and a bolt fixing member is provided on the sliding sleeve 9 for fixing the sliding sleeve 9. The bolt fixing member is used to fix the sliding sleeve 9 to the positioning rod 42. After releasing the bolt fixing member from fixing the sliding sleeve 9, the position of the positioning bracket 8 can be adjusted by pushing the sliding sleeve 9 up and down.

[0035] Specifically, the fixing component includes a fixing bolt 91, which is assembled on the side of the sliding sleeve 9 away from the outer template 1. The fixing bolt 91 is screwed into the sliding sleeve 9 and threadedly connected to the positioning hole 43 on the outside of the positioning rod 42. By rotating the fixing bolt 91, the fixing component is unscrewed from the positioning hole 43 on the outside of the positioning rod 42, thereby releasing the fixation between the sliding sleeve 9 and the positioning rod 42.

[0036] It is worth explaining in detail that the outer side of the positioning rod 42 has multiple positioning holes 43, which are evenly arranged along the height of the positioning rod 42. This ensures that the positioning holder 8 can be suspended at different heights.

[0037] The side reinforcing plate 41 is provided with multiple reinforcing threaded rods 7 for fixing the outer template 1. The reinforcing threaded rods 7 are threadedly connected to the side reinforcing plate 41, and the outer template 1 has threaded grooves on the outside that match the reinforcing threaded rods 7. The reinforcing threaded rods 7 are installed on the side reinforcing plate 41 and can support the outer template 1 from the outside, thereby improving the structural strength and impact resistance of the outer template 1.

[0038] Regarding the bolt clamping component:

[0039] The clamping components include a first positioning bolt 82 and a third positioning bolt 84, which are assembled on the left and right sides of the positioning base 8. The ends of the first positioning bolt 82 and the third positioning bolt 84 closest to the outer template 1 are screwed into the outer template 1. Rotating the first positioning bolt 82 and the third positioning bolt 84 screws them into the clamping groove A81, which compresses the outer template 1, clamping it in the center of the clamping groove A81, thus fixing the top position of the outer template 1.

[0040] Regarding the bolt clamping element:

[0041] The clamping component includes a second positioning bolt 83, which is mounted on the upper end of the positioning seat 8. The lower end of the second positioning bolt 83 is screwed into the clamping groove A81. A pressure block 831 is provided at the lower end of the second positioning bolt 83, and the pressure block 831 is rotatably connected to the second positioning bolt 83. The bottom of the pressure block 831 has a groove B832 that matches the upper edge of the outer template 1. By rotating the second positioning bolt 83, it is screwed downwards into the clamping groove A81. The pressure block 831 at the bottom of the second positioning bolt 83 will contact the upper edge of the outer template 1, and the upper edge of the outer template 1 will be engaged in the groove B832. The second positioning bolt 83, through the pressure block 831, presses the outer template 1 from the top, enhancing the overall stability of the outer template 1.

[0042] How this application works:

[0043] The positioning bracket 8 is slidably positioned between two positioning rods 42. The positioning guide structure supports the vertical adjustment of the positioning bracket 8, which can flexibly adapt to the position requirements of the outer formwork 1 at different construction stages, improving the convenience of operation. After the positioning bracket 8 is lowered, it will press the edge of the outer formwork 1 through the clamping groove A81. Together with the top bolt clamping member and the side bolt clamping member, it forms a multi-point fixation of the outer formwork 1, which can evenly distribute the lateral pressure generated during concrete pouring, ensuring that the outer formwork will not deform or shift during pouring. By enhancing the overall stability of the outer formwork 1, the vertical accuracy of the chimney structure is guaranteed.

[0044] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An external formwork installation and positioning device for slipform construction, comprising a construction platform (3) located outside the external formwork (1), wherein the edge of the construction platform (3) is provided with a construction fence (2), and multiple installation brackets (4) are provided between the construction fence (2) and the external formwork (1), characterized in that, The mounting bracket (4) is fixedly connected to the construction fence (2); The mounting bracket (4) includes a side reinforcement plate (41), and two positioning rods (42) are provided on the upper end of the side reinforcement plate (41). The positioning rods (42) are fixedly connected to the side reinforcement plate (41). A positioning bracket (8) is provided between the two positioning rods (42). The left and right sides of the positioning bracket (8) are provided with positioning guide structures to support the up and down adjustment of the positioning bracket (8). The lower end face of the positioning card seat (8) is provided with a clamping groove A (81), the clamping groove A (81) is located above the edge of the outer template (1), the inner side of the clamping groove A (81) is provided with a bolt clamping member for fixing the template, and the top of the clamping groove A (81) is provided with a bolt pressing member for pressing down the template.

2. The formwork installation positioning device for slipform construction according to claim 1, characterized in that: The positioning guide structure includes a sliding sleeve (9), which is sleeved on the outside of the positioning rod (42). The sliding sleeve (9) is slidably connected to the positioning rod (42). The sliding sleeve (9) is fixedly disposed on the left and right sides of the positioning card seat (8). The sliding sleeve (9) is provided with a bolt fixing member for fixing the sliding sleeve (9).

3. The formwork installation positioning device for slipform construction of claim 2, wherein: The bolt fixing component includes a fixing bolt (91), which is fitted to the side of the sliding sleeve (9) away from the outer template (1). The fixing bolt (91) is screwed into the sliding sleeve (9) and threadedly connected to the positioning hole (43) opened on the outside of the positioning rod (42).

4. The formwork installation positioning device for slipform construction according to claim 3, wherein: The positioning rod (42) has multiple positioning holes (43) on its outer side, and each positioning hole (43) is evenly arranged along the height of the positioning rod (42).

5. The formwork installation positioning device for slipform construction of claim 1, wherein: The side reinforcement plate (41) is provided with multiple reinforcing threaded rods (7) for fixing the outer template (1). The reinforcing threaded rods (7) are threadedly connected to the side reinforcement plate (41). The outer template (1) has a threaded groove on the outside that matches the reinforcing threaded rods (7).

6. The formwork installation positioning device for slipform construction of claim 1, wherein: The clamping component includes a first positioning bolt (82) and a third positioning bolt (84). The first positioning bolt (82) and the third positioning bolt (84) are assembled on the left and right sides of the positioning seat (8). The first positioning bolt (82) and the third positioning bolt (84) are screwed into the outer template (1) at the end closest to the outer template (1).

7. The formwork installation positioning device for slipform construction of claim 1, wherein: The bolt clamping component includes a second positioning bolt (83), which is assembled on the upper end of the positioning seat (8). The lower end of the second positioning bolt (83) is screwed into the clamping groove A (81). A pressure block (831) is provided at the lower end of the second positioning bolt (83). The pressure block (831) is rotatably connected to the second positioning bolt (83). A groove B (832) matching the upper edge of the outer template (1) is opened at the bottom of the pressure block (831).

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