A retractable tool-type formwork for construction of 45-degree slopes for lower column piers

Abstract

A telescopic tool-type formwork for constructing a 45-degree slope of a lower column pier includes a double-layer aluminum formwork (1), a telescopic slide (2), front and rear adjustable supports (3), fixing slots (4), connecting pivot pins (5), and telescopic formwork steel reinforcement components (6). Specifically, inclined connecting pivot pins (5) are installed at the four internal corners of the double-layer aluminum formwork (1), telescopic formwork steel reinforcement components (6) are welded to the internal surface of the double-layer aluminum formwork (1), a telescopic slide (2) is installed on the top of the double-layer aluminum formwork (1), fixing slots (4) are installed on opposite sides of the interior of the double-layer aluminum formwork (1), and front and rear adjustable supports (3) are placed between the fixing slots (4). This utility model can conveniently solve the problem of difficult concrete construction of 45-degree slopes of lower column piers. The tool is lightweight and easy to operate, making it suitable for widespread application.

Description

Technical Field

[0001] This utility model discloses a telescopic tool-type formwork for concrete construction of a 45-degree slope of a lower column pier, which relates to the field of formwork device technology. Background Technology

[0002] The construction of 45-degree slopes for column piers (also known as column bases, column foundations, or thickened slabs) is a common foundation treatment technique in building engineering, especially widely used in the construction of isolated foundations, raft foundations, or pile caps. Its background technology mainly involves structural stability, construction efficiency, and material conservation.

[0003] The 45-degree slope design of the lower column pier allows for a more even distribution of the concentrated load from the upper column to the foundation slab or ground, reducing stress concentration and preventing localized damage. In concrete structures, a 45-degree slope is a classic angle for punching shear calculations (consistent with the theory of shear stress in concrete sections), preventing shear failure at the column-foundation junction. However, pouring the 45-degree slope concrete for the lower column pier often presents a significant challenge during construction. Using brick formwork is time-consuming and labor-intensive, while using mortar of the same strength grade is difficult to apply. Utility Model Content

[0004] This utility model addresses the aforementioned problems by providing a retractable tool-type formwork for the construction of 45-degree slope concrete for lower column piers, completely solving a series of problems such as difficulty in formwork support, pouring, poor concrete surface effect, and poor concrete flatness for 45-degree slope concrete of lower column piers.

[0005] A telescopic tool-type formwork for the construction of a 45-degree slope for a lower column pier includes a double-layer aluminum formwork 1, a telescopic slide rail 2, front and rear adjustable supports 3, fixing slots 4, connecting pivot pins 5, and telescopic formwork steel reinforcement components 6; wherein: inclined connecting pivot pins 5 are installed at the four internal corners of the double-layer aluminum formwork 1, the telescopic formwork steel reinforcement components 6 are welded to the internal surface of the double-layer aluminum formwork 1, the telescopic slide rail 2 is installed on the top of the double-layer aluminum formwork 1, fixing slots 4 are installed on opposite sides of the internal surface of the double-layer aluminum formwork 1, and front and rear adjustable supports 3 are placed between the fixing slots 4.

[0006] Optimized: The double-layer aluminum template 1 is divided into upper and lower templates. The upper template 102 and the lower template 101 are tightly fitted together. The lower template 101 and the connecting pivot pin 5 are kept fixed. When the template size needs to be changed, only the upper template 102 needs to be pulled out.

[0007] Optimized: The retractable slide 2 is divided into an upper slide 201 and a lower slide 202, both of which have markings.

[0008] Optimized: The front and rear adjustable support 3 is divided into a threaded sleeve 301 and a threaded end support rod 302. The threaded end of the threaded support rod is threaded into the sleeve, and the other end is inserted into the fixing groove 4.

[0009] Optimized: Fixed slot 4 is used to fix the upper and lower support rods.

[0010] Optimized: The connecting shaft pin 5 is divided into pin 501 and shaft 502. When fixing the template, the shaft 502 is tightly engaged and then inserted into pin 501.

[0011] Optimized: The telescopic template steel reinforcement component 6 is welded onto the template 102.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model needle can solve a series of problems such as difficulty in formwork support and pouring of concrete on 45-degree slopes of lower column piers, poor concrete surface effect, and poor concrete flatness. The tool is lightweight and easy to operate, and is suitable for widespread application.

[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a detailed breakdown view of the double-layer aluminum template 1 of this utility model;

[0019] Figure 4 This is a detailed disassembled view of the connecting shaft pin 5 of this utility model.

[0020] Reference numerals in the attached drawings: 1 is double-layer aluminum template, 2 is telescopic slide, 3 is front and rear adjustable support, 4 is fixing slot, 5 is connecting shaft pin, 6 is telescopic template steel reinforcement component; 101 is lower template, 102 is upper template, 201 is upper slide, 202 is lower slide, 301 is threaded sleeve, 302 is two threaded support rods at the ends, 401 is support rod slot, 501 is pin, 502 is shaft, 601 is steel reinforcement component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", 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 this 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 this utility model.

[0023] A telescopic tool-type formwork for concrete construction on a 45-degree slope of a lower column pier includes a double-layer aluminum formwork 1, a telescopic sliding track 2, front and rear adjustable supports 3, fixing slots 4, connecting pivot pins 5, and telescopic formwork steel reinforcement components 6. Inclined connecting pivot pins 5 are installed at the four internal corners of the double-layer aluminum formwork 1. The telescopic formwork steel reinforcement components 6 are welded to the internal surface of the double-layer aluminum formwork 1. The telescopic sliding track 2 is installed on the top of the double-layer aluminum formwork 1. Fixing slots 4 are installed on opposite sides of the interior of the double-layer aluminum formwork 1, and front and rear adjustable supports 3 are placed between the fixing slots 4.

[0024] Aluminum formwork offers good stability, high load-bearing capacity, and excellent concrete surface finish. Telescopic slides adjust the length of the four aluminum formwork sides, with graduated scales ensuring consistent dimensions across parallel surfaces. Adjustable front and rear supports support and secure the formwork; after adjusting the formwork dimensions, the support sleeves are fixed in place. Telescopic formwork steel reinforcement components further reinforce the formwork, preventing slippage and bulging. Connecting pivot pins connect and secure the four formwork sides.

[0025] The double-layer aluminum formwork 1 is divided into upper and lower formworks. The upper formwork 102 and the lower formwork 101 are tightly fitted together. The lower formwork 101 and the connecting pivot pin 5 are fixed. When the formwork size needs to be changed, only the upper formwork 102 needs to be pulled out.

[0026] The telescopic sliding track 2 consists of an upper track 201 and a lower track 202, located on the same side of all four formwork panels. This ensures the formwork can extend and retract freely. Each track has markings to ensure consistency across all four panels when the upper formwork 102 changes size, thus guaranteeing project quality. Grooves along the track edges ensure a tight fit between the upper and lower formwork 101 during sliding. For lower column piers of different sizes, the formwork length can be adjusted to meet construction requirements.

[0027] The front and rear adjustable supports 3 are divided into threaded sleeves 301 and threaded support rods 302. The threaded end of the support rod is threaded into the sleeve, and the other end is engaged in the fixing groove 4. Adjustable sleeves are set in the middle of both supports. When the size of the pier changes and the template length needs to be adjusted, the size is changed by rotating the support rod threaded into the sleeve. The two supports change with the length of the template to ensure the stability of the template system.

[0028] The fixing slot 4 is used to fix the upper and lower support rods to prevent the mold from running or expanding and to ensure the stability of the template.

[0029] The connecting pivot pin 5 consists of pin 501 and pivot 502. When fixing the template, pivot 502 engages tightly and then inserts into pin 501 to ensure the template's stability. A total of 16 tightly engaging pivots are used to secure the four template sides. During formwork erection, the pivots engage tightly and insert into the pins to connect and fix the four template sides; during demolding, the pins are pulled out, and the template is disassembled, making the process simple and convenient.

[0030] The telescopic formwork steel reinforcement component 6 is welded onto the formwork 102 to ensure the formwork is stable.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A telescopic tool form for construction of 45 degree slope of a column, characterized in that: It includes a double-layer aluminum template (1), a telescopic slide (2), a front and rear adjustable support (3), a fixing slot (4), a connecting shaft pin (5), and a telescopic template steel reinforcement (6); wherein: the four corners of the double-layer aluminum template (1) are equipped with inclined connecting shaft pins (5), the inner surface of the double-layer aluminum template (1) is welded with a telescopic template steel reinforcement (6), the top of the double-layer aluminum template (1) is equipped with a telescopic slide (2), the opposite sides of the inner surface of the double-layer aluminum template (1) are equipped with fixing slots (4), and the front and rear adjustable support (3) is placed between the fixing slots (4).

2. A telescopic tool formwork for construction of 45 degree slope of a column according to claim 1, wherein: The double-layer aluminum template (1) is divided into upper and lower templates. The upper template (102) and the lower template (101) are tightly fitted together. The lower template (101) and the connecting pivot pin (5) are fixed. When the template size needs to be changed, only the upper template (102) needs to be pulled out.

3. A telescopic tool formwork for construction of 45 degree slope of a column according to claim 1, wherein: The retractable slide (2) is divided into an upper slide (201) and a lower slide (202), both of which have markings.

4. A retractable tool-type formwork for constructing a 45-degree slope of a lower column pier according to claim 1, characterized in that: The front and rear adjustable support (3) is divided into a threaded sleeve (301) and a threaded end support rod (302). The threaded end of the threaded support rod is threaded into the sleeve, and the other end is inserted into the fixing groove (4).

5. A telescopic tool-type formwork for construction of a 45-degree slope for a lower column pier, as described in claim 1, is characterized in that: The fixing slot (4) is used to fix the upper and lower support rods.

6. A telescopic tool formwork for construction of 45 degree slope of a column according to claim 1, wherein: The connecting shaft pin (5) is divided into a pin (501) and a shaft (502). When fixing the template, the shaft (502) is tightly engaged and then inserted into the pin (501).

7. A telescopic tool formwork for construction of 45 degree slope of a column according to claim 1, wherein: The telescopic template steel reinforcement component (6) is welded onto the template (102).

Images