Aluminum alloy formwork for thin plastering

By using the vertical limiting mechanism of the aluminum alloy template and the adjustable screed mold, the problems of inaccurate verticality control and non-adjustable thickness of traditional screed tools are solved, achieving efficient and precise plastering construction and improving construction efficiency and quality.

CN224300430UActive Publication Date: 2026-05-29CHINA CONSTR FIFTH ENG DIV CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR FIFTH ENG DIV CORP LTD
Filing Date
2025-07-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional screeding tools rely on the experience of construction workers and lack real-time visual calibration tools, resulting in inaccurate control of the verticality of the screed strips and an inability to flexibly adjust the thickness, which affects the quality of the plaster layer and construction efficiency.

Method used

It adopts aluminum alloy template, including vertical limiting mechanism and punching rib mold. The mold spacing is adjusted by using bevel gear steering box to drive the lead screw. Real-time verticality monitoring is achieved by combining semi-circular ruler and plumb line. It can adapt to different thickness requirements through detachable mold plate and heightened mold plate.

Benefits of technology

It improves the verticality consistency and construction efficiency of the screed strips, reduces labor costs, enhances the versatility and applicability of the formwork, and ensures the quality of the plaster layer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to an aluminum alloy template for thin plastering, which comprises vertical limiting mechanisms and rib punching molds located on the two sides of the vertical limiting mechanisms; the vertical limiting mechanism comprises a supporting box, a bevel gear steering box is arranged in the supporting box, one screw rod is rotationally connected to each side of the supporting box, one end of the screw rod extends into the supporting box and is connected with the bevel gear steering box, a threaded sleeve is threadedly connected to each screw rod, a first connecting plate is fixedly connected to the outer side wall of the threaded sleeve, a guide rod parallel to the screw rod is arranged on the outer side wall of the supporting box, the guide rod is slidably connected with the first connecting plate, the bevel gear steering box can drive the two screw rods to synchronously rotate, the mutual approaching or moving away of the two threaded sleeves is realized, and a perpendicularity correction assembly is further arranged at the bottom of the supporting box; the rib punching mold comprises a mold plate main body connected with the first connecting plate and a heightened mold plate. The template has the advantages of high-precision control, efficient construction and strong universality and can be widely applied to thin plastering construction.
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Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to an aluminum alloy template for thin plastering. Background Technology

[0002] In construction engineering, thin plastering creates a smooth and even plaster layer on the wall surface, laying the foundation for subsequent decoration work. The screeding process is a key step. First, a laser leveling instrument is used to mark positioning points on the wall surface. Then, plaster spots are made according to these points, and screed strips are applied along the vertical lines connecting the plaster spots to control the verticality and flatness of the plaster layer.

[0003] In traditional processes, controlling the verticality of screed strips relies heavily on the experience of construction workers. When working along the lines of mortar spots with a trowel, the verticality is judged solely by visual inspection or a simple plumb line. The lack of real-time visual calibration tools leads to a high deviation rate between the screed strip and the mortar spot reference. If the screed strip is tilted, the plaster layer will be applied along the outline of the screed strip, causing the entire wall surface to be skewed and affecting subsequent decoration work. Furthermore, traditional screed tools are mostly steel molds of fixed thickness, which cannot flexibly adjust the thickness of the screed according to different construction needs, making it difficult to adapt to diverse construction scenarios. Utility Model Content

[0004] This utility model addresses the aforementioned problems in the existing technology by providing an aluminum alloy template for thin plastering.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A thin plastering aluminum alloy template includes a vertical limiting mechanism and screed molds located on both sides of the vertical limiting mechanism. The vertical limiting mechanism includes a support box, inside which a bevel gear steering box is installed. A lead screw is rotatably connected to each side of the support box, with one end of the lead screw extending into the support box and connected to the bevel gear steering box. Each lead screw is threaded with a threaded sleeve, and a first connecting plate is fixedly connected to the outer wall of the threaded sleeve. The outer wall of the support box also has a guide rod parallel to the lead screw, which is slidably connected to the first connecting plate. The bevel gear steering box can drive the two lead screws to rotate synchronously, allowing the two threaded sleeves to move closer or further apart. A verticality correction component is also provided at the bottom of the support box. The screed mold includes a mold plate body connected to the first connecting plate and a heightened mold plate.

[0007] Preferably, the bevel gear steering box includes a housing, a first rotating shaft is longitudinally provided on the front side of the housing, a first bevel gear is provided at the rear end of the first rotating shaft, a rotating handwheel is provided at the front end of the first rotating shaft, and a second bevel gear is fixedly sleeved at one end of each of the two lead screws that extend into the housing, and the two second bevel gears are meshed with the first bevel gear.

[0008] Preferably, the support box is provided with two guide rods on both the left and right sides, and the two guide rods on the same side are located above and below the lead screw, respectively. The end of the lead screw and the guide rod away from the support box is provided with a limiting plate.

[0009] Preferably, the verticality correction component includes a semicircular ruler fixedly installed at the center of the bottom of the support box, with a plumb line installed on the front side of the semicircular ruler at the same center, and a weight connected to the end of the plumb line.

[0010] Preferably, the main body of the mold plate is a U-shaped plate with the opening facing downwards, and a second connecting plate is connected to one side of the main body of the mold plate via a connecting rod. The second connecting plate and the first connecting plate are detachably and fixedly connected.

[0011] Preferably, the heightening mold plate is a U-shaped plate with the opening facing downwards. The heightening mold plate can be inserted into the mold plate body, and the outer side wall of the heightening mold plate is in contact with the inner side wall of the mold plate body. The length of the heightening mold plate is consistent with the internal length of the mold plate body.

[0012] Preferably, the heightening mold plate has fixing holes at both the top and bottom, and the mold plate body has longitudinal elongated holes at both the top and bottom. The heightening mold plate and the mold plate body are fixedly connected by locking bolts passing through the fixing holes and elongated holes.

[0013] Preferably, the upper and lower outer walls of the heightened mold plate are provided with scale lines.

[0014] Therefore, compared with the prior art, the present invention has the following advantages:

[0015] (1) This utility model uses a bevel gear steering box to drive the screw to synchronously adjust the spacing between the two sides of the punching mold, so that the punching mold is precisely aligned with the two adjacent sets of mortar spots. On the one hand, it ensures the consistency of the spacing of the punching strips, which is convenient for making punching strips for the entire wall. On the other hand, it is simple to operate, greatly shortens the punching operation time, improves construction efficiency, and reduces labor costs.

[0016] (2) In this utility model, the semi-circular ruler, plumb line and weight at the bottom of the support box will convert the verticality error into an intuitive scale offset. Construction personnel can monitor and correct the angle of the screed mold in real time without relying on external instruments, and control the shaking amplitude of the screed mold during hand operation within a certain range, so that the verticality deviation of the screed strip meets the plastering standard.

[0017] (3) The punching mold of this utility model adopts a detachable mold plate body and an extended mold plate. By adjusting the front and rear positions of the extended mold plate and using the scale line for precise positioning, it can adapt to the construction needs of thin plastering of different thicknesses. At the same time, the detachable connection between the second connecting plate and the first connecting plate facilitates the replacement and maintenance of the mold and enhances the versatility and applicability of the template. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an aluminum alloy template for thin plastering according to this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the vertical limiting mechanism in an aluminum alloy template for thin plastering according to this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the bevel gear steering box in an aluminum alloy template for thin plastering according to this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the punching mold in an aluminum alloy template for thin plastering according to this utility model;

[0022] Figure 5 This is a side view of the punching mold in an aluminum alloy template for thin plastering according to this utility model.

[0023] Illustrations: 1. Vertical limiting mechanism; 2. Punching die; 3. Support box; 4. Bevel gear steering box; 5. Lead screw; 6. Threaded sleeve; 7. First connecting plate; 8. Guide rod; 9. Die plate body; 10. Heightened die plate; 11. Box body; 12. First rotating shaft; 13. First bevel gear; 14. Rotating handwheel; 15. Second bevel gear; 16. Limiting plate; 17. Semicircular ruler; 18. Plumb line; 19. Weight; 20. Connecting rod; 21. Second connecting plate; 22. Fixing hole; 23. Long strip hole; 24. Scale line. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0025] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0026] Example 1:

[0027] like Figure 1 As shown, this utility model provides a technical solution: an aluminum alloy template for thin plastering, including a vertical limiting mechanism 1 and punching molds 2 located on both sides of the vertical limiting mechanism 1; the vertical limiting mechanism 1 includes a support box 3, a bevel gear steering box 4 is bonded or bolted to the inner center of the support box 3, and a horizontally arranged lead screw 5 is rotatably connected to both the left and right sides of the support box 3. One end of the lead screw 5 extends into the support box 3 and connects to the bevel gear steering box 4. A threaded sleeve 6 is threadedly connected to each lead screw 5, and a first connecting plate 7 is fixedly connected to the outer wall of the threaded sleeve 6. The left and right side walls of the support box 3 are also bolted with guide rods 8 parallel to the lead screw 5. The guide rods 8 are slidably connected to the first connecting plate 7. The bevel gear steering box 4 can drive the two lead screws 5 to rotate synchronously, so that the two threaded sleeves 6 can move closer or further away from each other. The bottom of the support box 3 is also equipped with a verticality correction component. The punching mold 2 includes a mold plate body 9 connected to the first connecting plate 7 and a heightened mold plate 10. Both the mold plate body 9 and the heightened mold plate 10 are made of U-shaped aluminum alloy plates with the opening facing downwards. The mortar punching strip is formed through the U-shaped groove structure of the U-shaped plate.

[0028] Example 2:

[0029] like Figure 2 , 3 As shown, this utility model provides another technical solution: an aluminum alloy template for thin plastering. The difference from Embodiment 1 is that the bevel gear steering box 4 includes a hollow box body 11. A first rotating shaft 12 is longitudinally arranged in the middle of the front side of the box body 11. The first rotating shaft 12 is rotatably connected to the box body 11. A first bevel gear 13 is fixedly sleeved at the rear end of the first rotating shaft 12. A rotating handwheel 14 is fixedly connected to the front end of the first rotating shaft 12 by bolts. A second bevel gear 15 is fixedly sleeved at one end of each of the two lead screws 5 extending into the box body 11. Both second bevel gears 15 are meshed with the first bevel gear 13. The synchronous rotation of the lead screws 5 on both sides is achieved by rotating the handwheel 14. The spacing of the screed mold 2 can be adjusted by rotating the handwheel 14 with one hand, without the need for additional measuring tools. Calibration can be completed by visually aligning the outer edge of the plaster patch, significantly reducing the difficulty of operation.

[0030] Specifically, two guide rods 8 are provided on both the left and right sides of the support box 3, and the two guide rods 8 on the same side are located above and below the lead screw 5, respectively. The ends of the lead screw 5 and the guide rods 8 away from the support box 3 are welded or glued with a limiting plate 16. The limiting plate 16 is coaxially arranged with the corresponding lead screw 5 and guide rod 8, and the diameter of the limiting plate 16 is larger than the diameter of the lead screw 5 and the guide rod 8. The limiting plate 16 restricts the stroke range of the threaded sleeve 6 to prevent the mold from falling off due to excessive adjustment.

[0031] Specifically, the verticality correction component includes a semicircular ruler 17 that is bonded or bolted to the center of the bottom of the support box 3. A plumb line 18 is installed on the front side of the semicircular ruler 17 with a pin and the plumb line 18 is connected to the end of the plumb line 18. The plumb line 19 hangs down naturally under the action of gravity. When the plumb line 18 coincides with the center scale line of the semicircular ruler 17, the mold is in an absolutely vertical state. If it deviates, the plumb line is reset by rotating the support box 3, thus achieving "immediate correction if it deviates".

[0032] Example 3:

[0033] like Figure 1 , 4 As shown in Figure 5, this utility model provides another technical solution: an aluminum alloy template for thin plastering. The difference from embodiment 1 is that a second connecting plate 21 is connected to one side of the template body 9 via a connecting rod 20. The second connecting plate 21 and the first connecting plate 7 are detachably fixedly connected by bolts. The two ends of the connecting rod 20 are respectively bonded or bolted to the template body 9 and the second connecting plate 21. After the mortar is injected into the template body 9, it naturally forms along the groove wall, forming a uniform width and flat surface rib strip, avoiding the problems of rough edges and uneven thickness caused by traditional manual plastering.

[0034] Specifically, the heightened mold plate 10 can be inserted into the groove of the mold plate body 9, so that the outer side wall of the heightened mold plate 10 contacts the inner side wall of the mold plate body 9, and the length of the heightened mold plate 10 is consistent with the internal length of the mold plate body 9. After the two slide and nest, they form a complete U-shaped groove, and the groove depth is equal to the design thickness of the plaster layer.

[0035] Specifically, the upper and lower ends and left and right sides of the heightened mold plate 10 are provided with fixing holes 22, and the upper and lower ends and left and right sides of the mold plate body 9 are provided with longitudinal elongated holes 23 corresponding to the fixing holes. The heightened mold plate 10 and the mold plate body 9 are fixedly connected by locking bolts passing through the fixing holes 22 and elongated holes 23. In addition, the upper and lower ends and left and right side walls of the heightened mold plate 10 are provided with scale lines 24. The scale lines 24 are marked in 1mm increments, and the construction personnel can intuitively read the protruding thickness of the heightened mold plate 10. Combined with the longitudinal sliding of the elongated holes 23, precise control of "visible-adjustable-lockable" can be achieved. In this embodiment, the thickness of the mold plate body 9 is set to 12mm.

[0036] This utility model provides an aluminum alloy template for thin plastering, which is used in specific construction:

[0037] 1. Mortar spot positioning: Adhere mortar spots at 1.5m intervals on the wall base, with a thickness of 12mm;

[0038] 2. Mold calibration: Rotate handwheel 14 to align the groove walls of the main body 9 of the mold plate on both sides with the outer edge of the adjacent ash cake. Confirm the distance is 1.5m using a rangefinder. Observe whether the vertical line 18 is aligned with the center scale of the semicircular ruler 17. If it deviates, fine-tune the angle of the support box 3 to make it vertical.

[0039] 3. Plastering Construction: Starting from the ground, hold the support box 3 to make the bottom of the mold plate body 9 stick to the ground, and inject M15 cement mortar; push the template upward at a uniform speed of 20cm / s, and the mortar forms a 12mm thick vertical plastering strip in the U-shaped groove. Complete the vertical plastering of the wall in multiple times; if it is necessary to increase the plastering thickness to 18mm, insert the heightening mold plate 10 into the U-shaped groove of the mold plate body 9, slide the heightening mold plate 10 forward or backward, so that the scale line 24 shows the "18mm" position, and tighten the locking bolt to realize the adjustment of the thickness of the plastering mold 2.

[0040] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An aluminum alloy template for thin plastering, characterized in that: The aluminum alloy template includes a vertical limiting mechanism (1) and punching molds (2) located on both sides of the vertical limiting mechanism (1); the vertical limiting mechanism (1) includes a support box (3), inside which a bevel gear steering box (4) is installed; a lead screw (5) is rotatably connected to both sides of the support box (3), one end of the lead screw (5) extends into the support box (3) and connects to the bevel gear steering box (4); each lead screw (5) is threadedly connected to a threaded sleeve (6), the outer wall of the threaded sleeve (6) is fixed. The first connecting plate (7) is fixedly connected, and the outer side wall of the support box (3) is also provided with a guide rod (8) parallel to the lead screw (5). The guide rod (8) is slidably connected to the first connecting plate (7). The bevel gear steering box (4) can drive the two lead screws (5) to rotate synchronously, so that the two threaded sleeves (6) can move closer or further away from each other. The bottom of the support box (3) is also provided with a verticality correction component. The punching die (2) includes a die plate body (9) connected to the first connecting plate (7) and a heightened die plate (10).

2. The aluminum alloy template for thin plastering according to claim 1, characterized in that: The bevel gear steering box (4) includes a box body (11). A first rotating shaft (12) is longitudinally arranged on the front side of the box body (11). A first bevel gear (13) is arranged at the rear end of the first rotating shaft (12). A rotating handwheel (14) is arranged at the front end of the first rotating shaft (12). A second bevel gear (15) is fixedly sleeved at one end of each of the two lead screws (5) that extend into the box body (11). The two second bevel gears (15) are meshed with the first bevel gear (13).

3. The aluminum alloy template for thin plastering according to claim 2, characterized in that: The support box (3) is provided with two guide rods (8) on both the left and right sides, and the two guide rods (8) on the same side are located above and below the lead screw (5) respectively. The lead screw (5) and the guide rods (8) are provided with a limiting plate (16) at the end away from the support box (3).

4. The aluminum alloy template for thin plastering according to claim 1, characterized in that: The verticality correction component includes a semicircular ruler (17) fixedly installed at the center of the bottom of the support box (3). A plumb line (18) is installed on the front side of the semicircular ruler (17) with the same center. A weight (19) is connected to the end of the plumb line (18).

5. The aluminum alloy template for thin plastering according to claim 1, characterized in that: The mold plate body (9) adopts a U-shaped plate with the opening facing downward. A second connecting plate (21) is connected to one side of the mold plate body (9) through a connecting rod (20). The second connecting plate (21) is detachably and fixedly connected to the first connecting plate (7).

6. The aluminum alloy template for thin plastering according to claim 5, characterized in that: The heightened mold plate (10) is a U-shaped plate with the opening facing downwards. The heightened mold plate (10) can be inserted into the mold plate body (9) so that the outer side wall of the heightened mold plate (10) contacts the inner side wall of the mold plate body (9) and the length of the heightened mold plate (10) is consistent with the internal length of the mold plate body (9).

7. An aluminum alloy template for thin plastering according to claim 6, characterized in that: The heightened mold plate (10) has fixing holes (22) at both the top and bottom ends, and the mold plate body (9) has longitudinal elongated holes (23) at both the top and bottom ends. The heightened mold plate (10) and the mold plate body (9) are fixedly connected by locking bolts passing through the fixing holes (22) and elongated holes (23).

8. The aluminum alloy template for thin plastering according to claim 7, characterized in that: The upper and lower outer walls of the heightened mold plate (10) are provided with scale lines (24).