Pouring mold for constructional engineering

Through a unique docking section, docking groove, and docking wedge structure, combined with support pins and positioning bases, the sealing and stability issues of modular casting molds during the splicing process are solved, achieving an efficient casting process and quality assurance.

CN223964167UActive Publication Date: 2026-03-03HEBEI ZANQI CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Modular casting molds generate numerous seams during the assembly process, leading to decreased sealing performance, increased risk of slag inclusion, and impact on construction quality and schedule.

Method used

A unique docking section, docking groove, and docking wedge structure were designed, combined with a support pin and positioning base, to ensure the sealing and stability of the mold docking point and reduce the occurrence of seams.

Benefits of technology

It improves the sealing and stability of the mold joints, reduces the possibility of slag inclusion, simplifies the installation and disassembly of the molds, and improves construction efficiency and pouring quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a pouring mould for constructional engineering, which comprises a mould winding drum, a butt-joint part is integrally arranged on the mould winding drum, a butt-joint groove is formed on the mould winding drum, the butt-joint part is in butt joint with the butt-joint groove, and a butt-joint wedge shaft penetrates into a through hole of the butt-joint part; supporting pin rods are arranged on the periphery of the mold winding drum, the bottom ends of the supporting pin rods are inserted into positioning holes formed in the positioning base A and the positioning base B, two screw rods sequentially penetrate through the positioning base A and the positioning base B, and nuts are tightened at the two ends of each screw rod. According to the utility model, the sealing performance is improved by a unique butt joint structure, and seams forming a'slag inclusion 'phenomenon are reduced; the peripheral supporting pin rods are matched with the positioning base to guarantee stable pouring; and the concave positioning base is combined with the screw and the nut, so that mounting and dismounting are convenient, efficient dismounting can be achieved during maintenance, and the overall engineering quality and efficiency are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of casting mold technology, and in particular relates to a casting mold for building engineering. Background Technology

[0002] In the field of construction engineering, casting molds play a crucial role in the pouring of circular concrete columns. Currently, modular casting molds are widely used in practical projects due to their ease of disassembly and installation. However, this modular design has significant drawbacks. Since the mold is composed of multiple modules, numerous seams are inevitably created during the assembly process. On the one hand, the mold joints are difficult to achieve ideal results, and the sealing performance between modules is easily affected. During concrete pouring, if the concrete slurry is not properly sealed when flowing through these seams, aggregates such as sand and gravel will become trapped, forming a "slag inclusion" phenomenon. On the other hand, the presence of numerous seams increases the probability of "slag inclusion." Once "slag inclusion" occurs, rework is necessary. Construction workers must use grinding tools to meticulously grind the "slag inclusion" areas, which not only consumes a significant amount of manpower, resources, and time but may also damage the overall structure of the concrete column due to improper grinding operations, affecting its quality and service life, and consequently impacting the progress and quality of the entire construction project.

[0003] Therefore, it is essential to invent a casting mold for construction engineering. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a casting mold for building engineering, including a mold cylinder, a docking part, a docking groove, a docking wedge, a support pin, a positioning hole, a positioning base A, a positioning base B, screws, and nuts. The mold cylinder has an integrally formed docking part with a docking groove, and the docking part docks with the docking groove. The docking wedge passes through the through hole of the docking part. Support pins are arranged around the mold cylinder, and the bottom end of the support pin is inserted into the positioning hole of the positioning base A and the positioning base B. Two screws pass through the positioning base A and the positioning base B in sequence, and the nuts are tightened at both ends of each screw.

[0005] Preferably, one end of the mold roll is provided with a docking part, and the other end is provided with a docking groove. The docking part and the docking groove are matched with each other. After the mold roll is wound into a cylindrical shape, it allows the docking part and the docking groove to dock.

[0006] Preferably, the opening size of the docking groove gradually increases inward, the opening size of the docking groove is smaller than the diameter of the docking wedge, and the docking end of the mold roll is provided with a through hole that matches the docking wedge.

[0007] Preferably, the bottom of the mold roll is inserted into the positioning groove formed by positioning base A and positioning base B. Positioning base A and positioning base B have a U-shaped structure, and their semi-circular notches together form the positioning groove.

[0008] Preferably, the outer side of the semi-circular notch of the positioning base A and positioning base B is provided with a positioning hole, which matches the lower end of the support pin.

[0009] Preferably, the support pin is composed of a support part and an insertion part. The diameter of the support part is larger than the diameter of the insertion part. The insertion part of the support pin matches the positioning hole. Several support pins are distributed in a circular array around the outer side of the mold roll and are tightly attached to its outer surface.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model of a casting mold for building engineering features a unique joint section, joint groove, and joint wedge structure. The joint section at one end of the mold roll matches the joint groove at the other end, allowing for jointing after the roll is wound into a cylindrical shape. The opening size of the joint groove gradually increases inward and is smaller than the diameter of the joint wedge. A through hole matching the joint wedge is provided at the end of the joint section. By inserting the joint wedge through the through hole, the joint gap can be effectively filled, greatly improving the sealing and firmness of the mold joint. This fundamentally reduces the possibility of "slag inclusion" and avoids subsequent rework and grinding problems caused by "slag inclusion." Furthermore, because there is only a single joint, the probability of "slag inclusion" is reduced.

[0012] The supporting pins and corresponding positioning bases A and B around the mold cylinder of this invention provide stable support for the mold. Each supporting pin consists of a supporting part and an insertion part. The insertion part matches the positioning holes that penetrate the semi-circular notches of positioning bases A and B. Several supporting pins are arranged in a circular array around the outer perimeter of the mold cylinder and fit tightly against its outer surface. This structural design ensures the mold remains stable during casting, preventing displacement or deformation due to concrete pressure or other factors. It further guarantees the sealing of the mold joints, preventing "slag inclusion" at the joints caused by mold instability, improving casting quality, and reducing the risk of rework.

[0013] The positioning bases A and B of this invention adopt a U-shaped structure, with their semi-circular notches forming a positioning groove into which the bottom of the mold cylinder can be inserted. Simultaneously, two screws pass through positioning bases A and B in sequence, and are tightened at both ends with nuts. This design simplifies the installation and disassembly of the mold. It allows for quick disassembly when mold maintenance or cleaning is required, improving work efficiency. Furthermore, this structure maintains the mold's connection effect and overall performance even after repeated use and maintenance, reducing the incidence of quality problems such as "slag inclusions" caused by mold damage or performance degradation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0016] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0017] Figure 4 This is a schematic diagram of the structure of this utility model without the support pin installed.

[0018] In the picture:

[0019] 1. Mold roll, 2. Connecting part, 3. Connecting groove, 4. Connecting wedge, 5. Support pin, 6. Positioning hole, 7. Positioning base A, 8. Positioning base B, 9. Screw, 10. Nut. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides a casting mold for construction engineering, including a mold cylinder 1, a docking part 2, a docking groove 3, a docking wedge 4, a support pin 5, a positioning hole 6, a positioning base A7, a positioning base B8, a screw 9, and a nut 10. The mold cylinder 1 is integrally provided with the docking part 2 and has a docking groove 3. The docking part 2 docks with the docking groove 3. The docking wedge 4 passes through the through hole of the docking part 2. The mold cylinder 1 is provided with support pins 5 around its perimeter. The bottom end of the support pin 5 is inserted into the positioning hole 6 opened in the positioning base A7 and the positioning base B8. The two screws 9 pass through the positioning base A7 and the positioning base B8 in sequence. The nuts 10 are tightened at both ends of each screw 9.

[0024] Furthermore, one end of the mold roll 1 is integrally formed with a mating part 2, and the other end is correspondingly provided with a mating groove 3. The shape and size of the mating part 2 and the mating groove 3 are precisely designed and matched to each other. When the mold roll 1 is rolled into a cylindrical shape for pouring circular concrete columns, the mating part 2 can be precisely inserted into the mating groove 3 to achieve mating. The mating part 2 and the mold roll 1 can be made of the same high-strength, wear-resistant steel, or a polymer material with extremely high toughness, wear resistance, and strength to prevent separation under the pressure of concrete pouring. The mating groove 3 is formed on the mold roll 1 by machining to ensure dimensional accuracy and lay the foundation for a tight fit with the mating part 2 in the future.

[0025] Furthermore, the mating groove 3 features a unique design, with its opening size gradually increasing from the outside in, exhibiting a certain taper and curvature. Simultaneously, the minimum opening size of the mating groove 3 is smaller than the diameter of the mating wedge shaft 4. The end of the mating part 2 on the mold drum 1 has a through hole precisely matching the mating wedge shaft 4. During the insertion of the mating part 2 into the mating groove 3, the mating part 2 deforms inward due to the through hole at its end, facilitating the smooth entry of the end of the mating part 2, which is larger than the opening of the mating groove 3. After the mating part 2 is inserted into the mating groove 3, the mating wedge shaft 4 is inserted through the through hole of the mating part 2. Due to the taper of the opening of the mating groove 3 and the larger diameter of the mating wedge shaft 4, the mating wedge shaft 4 can tightly wed into the gap between the mating part 2 and the mating groove 3, achieving a reliable connection and seal. The mating wedge shaft 4 can be made of high-hardness alloy steel, with a surface hardening treatment to enhance its wear resistance and compressive strength, ensuring effective sealing and fastening even after repeated use.

[0026] Furthermore, the bottom of the mold roll 1 is adapted to the positioning groove formed by the positioning bases A7 and B8. Both positioning bases A7 and B8 are U-shaped structures, symmetrically arranged with their semi-circular notches facing each other, together forming a complete positioning groove into which the bottom of the mold roll 1 can be precisely inserted. Positioning bases A7 and B8 can be made of cast iron, possessing good compressive strength and stability, and are integrally formed through a casting process to ensure structural strength. Positioning bases A7 and B8 are placed on a flat construction surface, utilizing their own weight and friction with the ground to maintain stability, providing a reliable supporting foundation for the mold roll 1.

[0027] Furthermore, positioning holes 6 are provided along the circumferential direction on the outer side of the semi-circular notches of positioning base A7 and positioning base B8. The diameter of the positioning hole 6 is precisely matched with the diameter of the insertion part at the lower end of the support pin 5.

[0028] Furthermore, the support pin 5 consists of a support part with a larger diameter and an insertion part with a smaller diameter. The insertion part of the support pin 5 can be smoothly inserted into the positioning hole 6. Several support pins 5 are evenly distributed in a circular array around the outer periphery of the mold roll 1, and their support parts are tightly fitted to the outer surface of the mold roll 1. The support pins 5 can be made of aluminum alloy, which reduces the overall weight while ensuring sufficient strength, making installation and operation easier. Through the cooperation of the support pins 5 and the positioning hole 6, the mold roll 1 is firmly connected to the positioning base A7 and the positioning base B8, enhancing the stability of the mold during the casting process.

[0029] The working principle is as follows: First, the positioning base A7 and positioning base B8 are placed symmetrically on a flat construction ground. The two screws 9 pass through the positioning base A7 and B8 in sequence. Nuts 10 are screwed on both ends of the screws 9 and tightened to fix the two together. At this time, the semi-circular notches of the positioning base A7 and positioning base B8 together form a positioning groove, which is ready for the subsequent installation of the mold roll 1.

[0030] Next, inspect the mold roll 1 to ensure that the integrally formed docking part 2 at one end and the machined docking groove 3 at the other end are free from damage or deformation. Roll the mold roll 1 into a cylindrical shape for casting circular concrete columns, align the docking part 2 with the docking groove 3, and precisely insert the docking part 2 into the docking groove 3 to achieve docking.

[0031] Subsequently, the docking wedge 4 is inserted into the precisely matched through hole at the end of the docking part 2. Because the opening size of the docking groove 3 gradually increases from the outside to the inside and has a taper and curvature, the docking wedge 4 can achieve a tight docking between the docking part 2 and the docking groove 3, completing a reliable connection and seal at the docking point.

[0032] Next, inspect the support pins 5 to confirm that they consist of a support part with a larger diameter and an insertion part with a smaller diameter, and that there are no quality issues. Distribute several support pins 5 evenly around the outer perimeter of the mold roll 1 in a circular array, ensuring that their support parts are tightly fitted against the outer surface of the mold roll 1.

[0033] Finally, align the insertion part of the lower end of the support pin 5 with the positioning hole 6 that is opened along the circumferential direction on the outer side of the semi-circular notch of the positioning base A7 and positioning base B8, and smoothly insert the insertion part of the support pin 5 into the positioning hole 6. Through the cooperation of the support pin 5 and the positioning hole 6, the mold roll 1 is firmly connected to the positioning base A7 and positioning base B8, thus completing the installation of the entire construction project casting mold.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A casting mold for construction engineering, characterized in that, The mold includes a mold roll (1), a docking part (2), a docking groove (3), a docking wedge (4), a support pin (5), a positioning hole (6), a positioning base A (7), a positioning base B (8), a screw (9), and a nut (10). The mold roll (1) is integrally provided with a docking part (2) and a docking groove (3). The docking part (2) docks with the docking groove (3). The docking wedge (4) passes through the through hole of the docking part (2). The mold roll (1) is provided with a support pin (5) around its perimeter. The bottom end of the support pin (5) is inserted into the positioning hole (6) of the positioning base A (7) and the positioning base B (8). The two screws (9) pass through the positioning base A (7) and the positioning base B (8) in sequence. The nuts (10) are tightened at both ends of each screw (9).

2. The casting mold for construction engineering as described in claim 1, characterized in that: The mold roll (1) has a docking part (2) at one end and a docking groove (3) at the other end. The docking part (2) and the docking groove (3) match each other. After the mold roll (1) is rolled into a cylindrical shape, it allows the docking part (2) to dock with the docking groove (3).

3. A casting mold for construction engineering as described in claim 2, characterized in that: The opening size of the docking groove (3) gradually increases inward. The opening size of the docking groove (3) is smaller than the diameter of the docking wedge (4). The docking part (2) provided on the mold roll (1) has a through hole at the end that matches the docking wedge (4).

4. A casting mold for construction engineering as described in claim 3, characterized in that: The bottom of the mold roll (1) is inserted into the positioning slot formed by the positioning base A (7) and the positioning base B (8). The positioning base A (7) and the positioning base B (8) are U-shaped structures, and their semi-circular notches together form the positioning slot.

5. A casting mold for construction engineering as described in claim 4, characterized in that: The positioning base A (7) and positioning base B (8) have a positioning hole (6) through the outer side of the semi-circular notch, and the positioning hole (6) matches the lower end of the support pin (5).

6. A casting mold for construction engineering as described in claim 5, characterized in that: The support pin (5) is composed of a support part and an insertion part. The diameter of the support part is larger than the diameter of the insertion part. The insertion part of the support pin (5) matches the positioning hole (6). Several support pins (5) are arranged in a circular array around the outside of the mold roll (1) and are tightly attached to its outer surface.