Adjustable descending plate inner mold

The adjustable lowering plate inner mold, which is coordinated with the adjustable support mechanism and the corner frame, solves the problems of traditional inner molds being unable to adapt to size changes and the instability of the support system. It realizes rapid adjustment and stable support of the lowering plate inner mold, reducing construction costs and safety hazards.

CN223937632UActive Publication Date: 2026-02-24WEIFANG CHANGDA CONSTR GROUP
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Patent Information

Application Number
CN202520572854.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2026-02-24
Estimated Expiration
2035-03-29

AI Technical Summary

Technical Problem

Traditional fixed inner molds cannot flexibly adapt to changes in the size of the lowered inner mold, and the insufficient stability of the support system leads to mold bulging, increasing construction difficulty and cost, and posing safety hazards.

Method used

An adjustable lowering plate inner mold with adjustable support mechanism and corner frame is adopted. By adjusting the length and angle of the adjustable support arm assembly, the size and shape of the rectangular frame can be adjusted, and a stable internal support system is provided by the cooperation of sliding long groove and fastening bolt.

Benefits of technology

It enables rapid and flexible adjustment of the inner mold of the lowering plate, reducing construction difficulty and cost, and minimizing later repairs and safety hazards.

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Abstract

The utility model relates to an adjustable descending plate inner mold which comprises an adjustable supporting mechanism and four L-shaped corner brackets installed on the adjustable supporting mechanism, and a rectangular frame is defined by the four corner brackets on the adjustable supporting mechanism. Wherein the adjustable supporting mechanism comprises four mounting plates and four telescopic supporting arm assemblies, the two ends of each telescopic supporting arm assembly are hinged to the two adjacent mounting plates respectively, and the four mounting plates and the four telescopic supporting arm assemblies jointly define an integrated rhombic supporting structure; and each corner bracket is assembled on the two adjacent mounting plates in a sliding manner. According to the adjustable descending plate internal mold, the adjustable supporting mechanisms are matched with the corner brackets, the size and the shape of the descending plate internal mold can be rapidly and conveniently adjusted, a stable internal supporting system is further provided on the basis of flexibly adapting to the size change of the descending plate internal mold, the construction difficulty and cost input are reduced, and the construction efficiency is improved. And later repair and potential safety hazards are reduced.
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Description

Technical Field

[0001] This utility model relates to equipment and technology for slab lowering construction in the field of building construction, specifically to an adjustable slab lowering inner mold. Background Technology

[0002] Lowered slabs are widely used in the construction industry, mainly to meet specific functional requirements or optimize spatial layout. Their primary applications include lowered slabs in bathrooms, kitchens, balconies, and basements.

[0003] When the dimensions of the inner mold of the drop plate change, the traditional fixed inner mold is difficult to adapt and needs to be remade, which is time-consuming and labor-intensive. It cannot flexibly adapt to different size requirements and ensure the stability and reliability of the drop plate structure.

[0004] Traditional formwork support systems lack stability and are prone to problems such as formwork bulging during concrete pouring, affecting structural safety and aesthetic quality. These issues not only increase construction difficulty and costs but may also lead to later repairs and safety hazards. Utility Model Content

[0005] The technical problem this utility model aims to solve is to overcome the shortcomings of traditional fixed inner molds, which cannot flexibly adapt to changes in the size of the lowered slab inner mold and are prone to bulging during the pouring process due to insufficient stability of the support system. These shortcomings result in high construction difficulty, high cost, and potential for later repairs and safety hazards. This utility model provides an adjustable lowered slab inner mold, which, through an adjustable support mechanism and a corner frame, is constructed to form a lowered slab inner mold whose size and shape can be quickly and easily adjusted. While flexibly adapting to changes in the size of the lowered slab inner mold, it also provides a stable internal support system, which reduces construction difficulty and cost, as well as later repairs and safety hazards.

[0006] To solve the aforementioned technical problems, this adjustable lowering plate inner mold includes an adjustable support mechanism and four L-shaped corner brackets mounted on the adjustable support mechanism. The four corner brackets form a rectangular frame on the adjustable support mechanism. The adjustable support mechanism includes four mounting plates and four telescopic support arm assemblies. Each telescopic support arm assembly is hinged to two adjacent mounting plates at both ends. The four mounting plates and the four telescopic support arm assemblies together form an integrated rhomboid support structure. Each corner bracket is slidably mounted on two adjacent mounting plates. By adjusting the length of the adjustable support arm assemblies, the four mounting plates can be moved inward or outward. By adjusting the angle between the adjustable support arm assemblies, the aspect ratio of the rectangular frame formed by the four corner brackets can be adjusted, thereby achieving adjustment of the size and shape of the rectangular frame formed by the four corner brackets.

[0007] Furthermore, the telescopic support arm assembly includes a lead screw telescopic rod and short arm connecting rods rotatably connected to both ends of the lead screw telescopic rod, and the total length of the telescopic support arm assembly can be changed by adjusting the lead screw telescopic rod.

[0008] Furthermore, the mounting plate has sliding grooves on both sides, and the corner bracket is connected to the sliding grooves of the mounting plate by fastening bolts. The connection limit, guiding sliding and locking of the corner bracket on the adjustable support mechanism are realized through the cooperation of the sliding grooves and fastening bolts.

[0009] Furthermore, the mounting plate has two pairs of bearing seats in the center for the hinged telescopic support arm assembly. The end of the short arm connecting rod of the telescopic support arm assembly is rotatably connected to the bearing seats to realize the hinge of the telescopic support arm assembly on the mounting plate.

[0010] Furthermore, an inner mold template is installed on the outside of the corner frame. The corner frame has a template mounting groove and is equipped with fixing bolts. The inner mold template is fixed to the outside of the corner frame by the fixing bolts. The inner mold template supported by the adjustable support mechanism and the corner frame constitutes the lowering plate inner mold mold.

[0011] Furthermore, the mounting plate has a threaded hole in the center and is fitted with mounting bolts. The mounting bolts are used to install template filling blocks of different widths. The filling blocks are used to fill the gaps formed between the inner mold templates at the mounting plate position, so that the four sides of the inner mold of the lowering plate form a continuous plane.

[0012] In an optimized configuration, each corner of the corner frame is provided with a pair of triangular reinforcing ribs to improve the strength of the corner frame.

[0013] This utility model discloses an adjustable lowering slab inner mold, which overcomes the shortcomings of traditional fixed inner molds, such as the inability to flexibly adapt to changes in the size of the lowering slab inner mold and the tendency for bulging during the pouring process due to insufficient stability of the support system. These shortcomings result in high construction difficulty, high cost, and potential for later repairs and safety hazards. By cooperating with an adjustable support mechanism and a corner frame, it is constructed into a lowering slab inner mold that can be quickly and easily adjusted in size and shape. While flexibly adapting to changes in the size of the lowering slab inner mold, it also provides a stable internal support system, which reduces construction difficulty and cost, as well as later repairs and safety hazards. Attached Figure Description

[0014] The adjustable lowering plate inner mold of this utility model will be further described below with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the assembly structure of the adjustable lowering plate inner mold;

[0016] Figure 2 yes Figure 1 A magnified view of part A shown in the diagram;

[0017] Figure 3 yes Figure 1 The diagram shows the internal structure of the lead screw telescopic rod 121 in axial cross-section.

[0018] In the picture:

[0019] 1-Adjustable support mechanism; 11-Mounting plate; 12-Telescopic support arm assembly; 111-Sliding groove; 112-Shaft seat; 113-Mounting bolt; 121-Screw telescopic rod; 122-Short arm connecting rod;

[0020] 2-Angle frame; 21-Fastening bolt; 22-Formwork mounting slot; 23-Fixing plate bolt; 24-Triangular reinforcing rib;

[0021] 3-Inner mold template;

[0022] 4-Template fill block. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "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 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.

[0025] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0026] Implementation method 1: such as Figure 1As shown, this adjustable lowering plate inner mold includes an adjustable support mechanism 1 and four L-shaped corner brackets 2 mounted on the adjustable support mechanism 1. The four corner brackets 2 form a rectangular frame on the adjustable support mechanism 1. The adjustable support mechanism 1 includes four mounting plates 11 and four telescopic support arm assemblies 12. Each telescopic support arm assembly 12 is hinged to two adjacent mounting plates 11 at both ends. The four mounting plates 11 and the four telescopic support arm assemblies 12 together form an integrated rhomboid support structure. Each corner bracket 2 is slidably mounted on two adjacent mounting plates 11. By adjusting the length of the adjustable support arm assembly 12, the four mounting plates 11 can be driven to retract and expand. By adjusting the angle between the adjustable support arm assemblies 12, the aspect ratio of the rectangular frame formed by the four corner brackets 2 can be adjusted, thereby realizing the adjustment of the size and shape of the rectangular frame formed by the four corner brackets 2.

[0027] Implementation method 2: such as Figure 1 , 3 As shown, the telescopic support arm assembly 12 of this adjustable lowering plate inner mold includes a lead screw telescopic rod 121 and a short arm connecting rod 122 rotatably connected to both ends of the lead screw telescopic rod 121. The total length of the telescopic support arm assembly 12 is changed by adjusting the lead screw telescopic rod 121.

[0028] Implementation method 3: such as Figure 1 , 2 As shown, the mounting plate 11 of the adjustable lowering plate inner mold is provided with sliding long grooves 111 on both sides. The corner frame 2 is connected to the sliding long groove 111 of the mounting plate 11 by fastening bolts 21. The connection limit, guiding sliding and locking of the corner frame 2 on the adjustable support mechanism 1 are realized by the cooperation of the sliding long groove 111 and the fastening bolts 21.

[0029] Implementation method 4: such as Figure 1 , 2 As shown, the mounting plate 11 of this adjustable lowering plate inner mold has two pairs of bearing seats 112 in the center for the hinged telescopic support arm assembly 12. The end of the short arm connecting rod 122 of the telescopic support arm assembly 12 is rotatably connected to the bearing seat 112, realizing the hinge of the telescopic support arm assembly 12 on the mounting plate 11. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0030] Implementation method 5: such as Figure 1 As shown, an inner mold template 3 is installed on the outer side of the corner frame 2 of this adjustable lowering plate inner mold. The corner frame 2 has a template mounting groove 22 and is equipped with fixing bolts 23. The inner mold template 3 is fixed to the outer side of the corner frame 2 by the fixing bolts 23. The inner mold template 3, supported by the adjustable support mechanism 1 and the corner frame 2, constitutes the lowering plate inner mold. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0031] Implementation method 6: such as Figure 1 , 2 As shown, the mounting plate 11 of this adjustable lowering plate inner mold has a threaded hole in the center and is fitted with mounting bolts 113. The mounting bolts 113 are used to install template filling blocks 4 of different widths. The filling blocks 4 are used to fill the gaps formed between the inner mold templates 3 at the position of the mounting plate 11, so that the four sides of the lowering plate inner mold form a continuous plane. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0032] Implementation method 7: such as Figure 1 As shown, each of the corner brackets 2 in this adjustable lowering plate inner mold is provided with a pair of triangular reinforcing ribs 24 to improve the strength of the corner brackets. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0033] In use: Workers adjust the length of the adjustable support arm assemblies and the angles between them according to the required dimensions and shape of the inner mold. This drives the inward and outward expansion of the four mounting plates and determines the aspect ratio of the rectangular frame formed by the four corner brackets. The size and shape of this rectangular frame are then adjusted to ensure that the inner mold, consisting of inner mold templates attached to the outside of the corner brackets, meets the required dimensions and shape. During the adjustment of the adjustable support arm assemblies, the corner brackets slide and engage with loosened bolts to guide their movement on the adjustable support mechanism. After adjustment, the bolts are tightened to lock the inner mold onto the adjustable support mechanism. Once locked, the gaps between the inner mold templates at the mounting plate positions are filled and sealed with filler blocks of appropriate width. These filler blocks are fixed to the mounting plate with mounting bolts, ensuring that the four surfaces of the inner mold form a continuous plane. The inner mold adjustment is then complete.

[0034] During construction: After the inner formwork has been adjusted and fixed in the lowered plate position, the outer perimeter of the inner formwork is poured. Once the concrete has solidified to a certain extent, the length of the adjustable support arm assembly is shortened to release the internal support, and the inner formwork can be easily removed. A lowered plate structure is formed between the unpoured area in the inner formwork and the poured area on the outside.

[0035] This adjustable lowering plate inner mold, through the cooperation of an adjustable support mechanism and a corner frame, is constructed to be a lowering plate inner mold mold whose size and shape can be quickly and easily adjusted. While flexibly adapting to changes in the size of the lowering plate inner mold, it also provides a stable internal support system, which reduces construction difficulty and cost, as well as subsequent repairs and safety hazards.

[0036] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable lowering plate inner mold, characterized in that: It includes an adjustable support mechanism (1) and four L-shaped corner brackets (2) mounted on the adjustable support mechanism (1). The four corner brackets (2) form a rectangular frame on the adjustable support mechanism (1), wherein, The adjustable support mechanism (1) includes four mounting plates (11) and four telescopic support arm assemblies (12). Each telescopic support arm assembly (12) is hinged to two adjacent mounting plates (11) at both ends. The four mounting plates (11) and the four telescopic support arm assemblies (12) together form an integrated rhomboid support structure. Each corner frame (2) can be slidably mounted on two adjacent mounting plates (11). By adjusting the length of the adjustable support arm assembly (12), the four mounting plates (11) can be driven to retract and expand outward. By adjusting the angle between the adjustable support arm assemblies (12), the aspect ratio of the rectangular frame formed by the four corner frames (2) can be driven, thereby realizing the adjustment of the size and shape of the rectangular frame formed by the four corner frames (2).

2. The adjustable lowering plate inner mold according to claim 1, characterized in that: The telescopic support arm assembly (12) includes a lead screw telescopic rod (121) and a short arm connecting rod (122) rotatably connected to both ends of the lead screw telescopic rod (121). The total length of the telescopic support arm assembly (12) can be changed by adjusting the lead screw telescopic rod (121).

3. The adjustable lowering plate inner mold according to claim 2, characterized in that: The mounting plate (11) has sliding grooves (111) on both sides. The corner bracket (2) is connected to the sliding groove (111) of the mounting plate (11) by fastening bolts (21). The connection limit, guide sliding and locking of the corner bracket (2) on the adjustable support mechanism (1) are realized by the cooperation of the sliding groove (111) and the fastening bolts (21).

4. The adjustable lowering plate inner mold according to claim 3, characterized in that: The mounting plate (11) has two pairs of bearing seats (112) in the center for the hinged telescopic support arm assembly (12). The end of the short arm connecting rod (122) of the telescopic support arm assembly (12) is rotatably connected to the bearing seat (112) to realize the hinge of the telescopic support arm assembly (12) on the mounting plate (11).

5. The adjustable lowering plate inner mold according to claim 4, characterized in that: An inner mold template (3) is installed on the outside of the corner frame (2). The corner frame (2) has a template mounting groove (22) and is equipped with a fixing bolt (23). The inner mold template (3) is fixed on the outside of the corner frame (2) by the fixing bolt (23). The inner mold template (3) supported by the adjustable support mechanism (1) and the corner frame (2) constitutes the lowering plate inner mold.

6. The adjustable lowering plate inner mold according to claim 5, characterized in that: The mounting plate (11) has a threaded hole in the center and is fitted with mounting bolts (113). The mounting bolts (113) are used to install template filling blocks (4) of different widths. The filling blocks (4) are used to fill the gaps formed between the inner mold templates (3) at the position of the mounting plate (11), so that the four sides of the inner mold of the lowering plate form a continuous plane.

7. The adjustable lowering plate inner mold according to any one of claims 1-6, characterized in that: Each of the corner brackets (2) is provided with a pair of triangular reinforcing ribs (24) at the corner to improve the strength of the corner bracket.