A mould for making controlled thickness concrete pads

Abstract

The utility model discloses a kind of molds of making controllable board thickness concrete cushion block, contain two hollow cylinder bodies of coaxially setting and axial spacing adjustment plug-in in opposite direction;Each hollow cylinder body is by two symmetric half mould cylinder opposite splicing fixed, the section of hollow cylinder body is the hollow piston shape structure of top and bottom open mouth, the piston rod end of this hollow cylinder body is mutually plug-in and axial spacing adjustment connection, and concrete groove is integrally made in the piston end of hollow cylinder body;The rubber clamping key of sealing concrete slurry and isolating hollow cylinder body piston rod section and piston section is compositely bonded in the piston rod section inside of hollow cylinder body.The mold rigidity is big, can ensure not to deform when pouring, and height can be accurately adjusted, realize repeated use;It can make cushion block of different height, applicable to various board thickness requirements, while guaranteeing steel bar protective layer thickness, effectively prevent missing steel bar, with the advantages of simple operation, material saving and reusable, with higher popularization and application value.

Description

Technical Field

[0001] This utility model relates to the field of concrete construction technology, specifically to a mold for making concrete blocks with controllable thickness. Background Technology

[0002] In actual construction projects, traditional methods of controlling elevation often result in uneven floor slab thickness, affecting construction quality and subsequent use. While the new method of concrete block casting can improve casting efficiency, it suffers from problems such as complex manufacturing processes, poor mold adaptability, and difficulty in precision control. Existing single molds can only produce blocks of fixed height, and manufacturing errors can easily lead to uneven block heights, resulting in material waste and construction delays.

[0003] Therefore, there is an urgent need for a concrete block casting mold that can be precisely adjusted and reused to reduce overall costs while ensuring construction accuracy. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a mold for manufacturing controllable thickness concrete spacers. This mold has a simple structure, is easy to construct, can control the elevation of common template thicknesses, ensures the spacing between concrete spacers, and has superior construction accuracy and efficiency compared to the prior art.

[0005] To address the aforementioned problems, this utility model provides a mold for manufacturing controllable thickness concrete pad blocks, comprising two hollow cylinders arranged coaxially in opposite directions and connected with adjustable axial spacing. Each hollow cylinder is formed by two symmetrical half-mold cylinders spliced ​​and fixed in opposite directions. The cross-section of the hollow cylinder is a hollow piston-shaped structure with open top and bottom. The piston rod ends of the hollow cylinders are interlocked and connected with adjustable axial spacing. The piston ends of the hollow cylinders are uniformly formed with concrete grooves. The piston rod sections of the hollow cylinders are all bonded with sealing concrete slurry and rubber clips that isolate the piston rod sections from the piston sections.

[0006] Preferably, the hollow cylinder includes an upper steel hollow cylinder, a lower steel hollow cylinder, an upper concrete trough, and a lower concrete trough;

[0007] The two symmetrical half-mold cylinders of the upper steel hollow cylinder are connected and fixed by an upper closed switch;

[0008] The two symmetrical half-mold cylinders of the lower steel hollow cylinder are connected and fixed by a lower closed switch;

[0009] The top of the upper steel hollow cylinder is coaxially fixed with an upper concrete trough consisting of two opposing semi-mold cylinders spliced ​​together, and the bottom of the lower steel hollow cylinder is coaxially fixed with a lower concrete trough consisting of two opposing semi-mold cylinders spliced ​​together.

[0010] Both the upper and lower concrete troughs have radially protruding connecting pieces fixed on their circumferential outer walls to hook and position the overall mold.

[0011] Preferably, the inner diameter of the upper hollow steel cylinder is larger than the outer diameter of the lower hollow steel cylinder, and a fastening screw is radially penetrating and connected to the upper hollow steel cylinder; the fastening screw radially abuts against the circumferential outer wall of the lower hollow steel cylinder to fix the upper hollow steel cylinder and the lower hollow steel cylinder relative to each other.

[0012] Preferably, the thickness of the steel plate of the hollow cylinder is 2mm; the total axial height of the upper and lower steel hollow cylinders ranges from 50 to 300mm.

[0013] Preferably, the inner circumferential wall of the rubber clip is sealed and connected to the outer circumferential wall of the reinforcing bar. The rubber hardness of the rubber clip is 60±5 Shore A. The rubber clip includes an upper rubber clip and a lower rubber clip with a symmetrical trapezoidal cross-section. The outer circumference of the upper rubber clip is sealed and bonded to the inner wall of the upper hollow steel cylinder, and the outer circumference of the lower rubber clip is sealed and bonded to the inner wall of the lower hollow steel cylinder.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] This utility model discloses a mold for making controllable thickness concrete pad blocks. The main body of the mold is made of high-rigidity steel to ensure that it does not deform during pouring. It can precisely adjust the axial distance between the upper and lower steel hollow cylinders and can be reused for a long time. The adjustment method is simple and saves manpower and material resources.

[0016] This utility model is used for spacers of different heights in concrete pouring construction, which are suitable for various slab thickness requirements (suitable for different rebar lengths, and adjustable concrete spacer spacing). It effectively controls the thickness of the rebar protective layer, prevents rebar leakage, saves costs and facilitates on-site processing. The overall design takes into account both construction accuracy and ease of operation. It is reusable, economical and efficient, and suitable for widespread promotion. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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 three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] In the diagram: 1-Upper hollow steel cylinder; 2-Lower hollow steel cylinder; 3-Upper concrete trough; 4-Lower concrete trough; 5-Lower closing switch; 6-Upper closing switch; 7-Connector; 8-Fasting screw; 9-Upper rubber retaining clip; 10-Reinforcing bar; 11-Lower rubber retaining clip; 12-Concrete pad block. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Combination Figures 1-2 This utility model discloses a mold for manufacturing controllable thickness concrete pad blocks 12, comprising two hollow cylinders arranged coaxially in opposite directions and with adjustable axial spacing. Each hollow cylinder is made of two symmetrical half-mold cylinders spliced ​​and fixed in opposite directions. The cross-section of the hollow cylinder is a hollow piston-shaped structure with open top and bottom. The piston rod ends of the hollow cylinders are interlocked and connected with adjustable axial spacing. The piston ends of the hollow cylinders are uniformly formed with concrete grooves. The piston rod sections of the hollow cylinders are all bonded with sealing concrete slurry and rubber keyways that isolate the piston rod sections from the piston sections.

[0025] Preferably, the hollow cylinder includes an upper steel hollow cylinder 1, a lower steel hollow cylinder 2, an upper concrete trough 3, and a lower concrete trough 4;

[0026] The two symmetrical half-mold cylinders of the upper steel hollow cylinder 1 are connected and fixed by the upper closing switch 6;

[0027] The two symmetrical half-mold cylinders of the lower steel hollow cylinder 2 are connected and fixed by the lower closing switch 5;

[0028] The top of the upper steel hollow cylinder 1 is coaxially fixed with an upper concrete trough 3 formed by two opposing half-mold cylinders splicing together, and the bottom of the lower steel hollow cylinder 2 is coaxially fixed with a lower concrete trough 4 formed by two opposing half-mold cylinders splicing together.

[0029] Both the upper concrete trough 3 and the lower concrete trough 4 are fixed with radially protruding connecting parts 7 that are used to position the overall mold.

[0030] Preferably, the inner diameter of the upper hollow steel cylinder 1 is larger than the outer diameter of the lower hollow steel cylinder 2, and a fastening screw 8 is radially penetrating and connected to the upper hollow steel cylinder 1; the fastening screw 8 radially abuts against the circumferential outer wall of the lower hollow steel cylinder 2 to fix the upper hollow steel cylinder 1 and the lower hollow steel cylinder 2 relative to each other.

[0031] Preferably, the thickness of the steel plate of the hollow cylinder is 2mm; the total axial height of the upper steel hollow cylinder 1 and the lower steel hollow cylinder 2 ranges from 50 to 300mm.

[0032] Preferably, the inner circumferential wall of the rubber key is sealed and connected to the outer circumferential wall of the reinforcing bar 10. The rubber hardness of the rubber key is 60±5 Shore A. The rubber key includes an upper rubber key 9 and a lower rubber key 11 with a symmetrical trapezoidal cross-section. The outer periphery of the upper rubber key 9 is sealed and bonded to the inner wall of the upper steel hollow cylinder 1, and the outer periphery of the lower rubber key 11 is sealed and bonded to the inner wall of the lower steel hollow cylinder 2.

[0033] To more clearly illustrate the specific implementation of this utility model, an embodiment is provided below:

[0034] A mold for manufacturing controllable slab thickness concrete spacers is disclosed, used to produce a one-piece concrete spacer assembly. The assembly includes exposed reinforcing bars in the middle, with concrete spacers cast at both ends of the bars. These spacers allow for control of the slab thickness and elevation during concrete pouring. The mold mainly consists of two hollow steel cylinder structures. During manufacturing, the two cylinder structures are first attached separately to the reinforcing bars, then the axial distance between the upper and lower hollow steel cylinders is adjusted; finally, the lower and upper closing switches are locked, allowing... The upper and lower rubber clips are attached to the outer periphery of the reinforcing bar; then the fastening screws are tightened to fix the upper and lower hollow steel cylinders relatively; finally, the overall mold is fixed in the position to be poured using the connectors, and concrete grout is filled into the upper and lower concrete troughs. After the concrete pads reach the predetermined strength, the connectors, locking screws, lower closing switch, and upper closing switch are loosened in sequence to open the symmetrical half-mold cylinders of the upper and lower hollow steel cylinders, thus completing the demolding.

[0035] Finally, any aspects of this utility model not fully described herein utilize existing mature products and technologies.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mold for making a controlled slab thickness concrete pad, characterized by: The device comprises two hollow cylinders arranged coaxially in opposite directions and connected with an adjustable axial spacing. Each hollow cylinder is fixed by two symmetrical half-molded cylinders spliced ​​together. The cross-section of the hollow cylinder is a hollow piston-shaped structure with an open top and bottom. The piston rod ends of the hollow cylinders are interlocked and connected with an adjustable axial spacing. The piston ends of the hollow cylinders are uniformly formed with concrete grooves. The piston rod sections of the hollow cylinders are all bonded with sealing concrete slurry and rubber clips that isolate the piston rod sections from the piston sections.

2. A mold for making a controllably thick concrete pad according to claim 1, wherein: The hollow cylinder includes an upper steel hollow cylinder (1), a lower steel hollow cylinder (2), an upper concrete trough (3), and a lower concrete trough (4). The two symmetrical half-mold cylinders of the upper steel hollow cylinder (1) are connected and fixed by the upper closing switch (6); The two symmetrical half-mold cylinders of the lower steel hollow cylinder (2) are connected and fixed by the lower closing switch (5); The upper steel hollow cylinder (1) has an upper concrete trough (3) coaxially fixed at the top end, consisting of two opposing half-mold cylinders spliced ​​together, and the lower steel hollow cylinder (2) has a lower concrete trough (4) coaxially fixed at the bottom end, consisting of two opposing half-mold cylinders spliced ​​together. Both the upper concrete trough (3) and the lower concrete trough (4) are fixed with radially protruding connecting pieces (7) that are used to position the overall mold.

3. A mold for making a controllably thick concrete pad according to claim 2, wherein: The inner diameter of the upper hollow steel cylinder (1) is larger than the outer diameter of the lower hollow steel cylinder (2), and a fastening screw (8) is radially penetrating and connected to the upper hollow steel cylinder (1); the fastening screw (8) radially abuts against the circumferential outer wall of the lower hollow steel cylinder (2) to fix the upper hollow steel cylinder (1) and the lower hollow steel cylinder (2) relative to each other.

4. The mold for manufacturing controllable thickness concrete pads according to claim 2, characterized in that: The thickness of the steel plate in the hollow cylinder is 2mm; The total axial height of the upper steel hollow cylinder (1) and the lower steel hollow cylinder (2) ranges from 50 to 300 mm.

5. The mold for manufacturing controllable thickness concrete pads according to claim 1, characterized in that: The inner circumferential wall of the rubber key is sealed and attached to the outer circumferential wall of the reinforcing bar. The rubber hardness of the rubber key is 60±5 Shore A. The rubber key includes an upper rubber key (9) and a lower rubber key (11) with a symmetrical trapezoidal cross-section. The outer circumference of the upper rubber key (9) is sealed and bonded to the inner wall of the upper steel hollow cylinder (1), and the outer circumference of the lower rubber key (11) is sealed and bonded to the inner wall of the lower steel hollow cylinder (2).

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