Carbon dioxide curing device for small precast concrete component

By designing a carbon dioxide curing device that includes a curing cover, mounting bracket, movable rod, casters, and linear drive mechanism, the problems of cumbersome operation and insufficient sealing in existing technologies have been solved, achieving convenient adjustment and efficient curing.

CN223961454UActive Publication Date: 2026-03-03CHINA RAILWAY NO 8 ENG GRP CO LTD +3
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Patent Information

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

AI Technical Summary

Technical Problem

The existing carbon dioxide curing devices for precast concrete components are cumbersome to operate during movement and have difficulty in ensuring sealing, which affects the curing effect.

Method used

A carbon dioxide curing device was designed, comprising a curing hood, a mounting bracket, a movable rod, casters, and a linear drive mechanism. The movable rod and casters work together to adjust the position of the curing hood and improve its sealing performance. Limiting grooves and limiting components simplify the disassembly and assembly process of the device.

Benefits of technology

It enables convenient position adjustment and improved sealing of the maintenance cover, simplifies the operation process, reduces equipment space occupation, and improves maintenance efficiency and effectiveness.

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Abstract

The utility model relates to the technical field of concrete prefabrication, in particular to a carbon dioxide curing device for a small concrete prefabricated part, which comprises a curing cover, a mounting bracket detachably mounted on the outer side of the curing cover and a plurality of movable rods movably arranged on two sides of the mounting bracket through a linear driving mechanism, the maintenance cover is a cavity with an opening in the bottom end, the linear driving mechanism is used for driving the movable rod to move up and down relative to the installation support, the movable rod extends to the position below the installation support, universal wheels are fixed to the movable rod, the vertical position of the maintenance cover can be adjusted, and when the maintenance cover is higher than the top end of the mold table, the position of the maintenance cover can be adjusted. Small concrete prefabricated parts on different mold tables can be conveniently maintained, and operation is easy and fast.
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Description

Technical Field

[0001] This utility model relates to the field of precast concrete technology, specifically to a carbon dioxide curing device for small precast concrete components. Background Technology

[0002] Carbon dioxide curing of precast concrete components is a curing technology that uses carbon dioxide gas to accelerate the hardening and strength development of concrete. Carbon dioxide curing of small precast concrete components can accelerate strength development, improve durability, reduce carbon emissions, improve surface quality, save resources, and meet the needs of industrialized production.

[0003] In the Chinese Patent Document Database, patent application number 201821851141.4 discloses a movable curing cover and a movable curing device. By setting the curing cover as a cover body and a walking device, the curing cover can be driven to move relative to the mold table, thereby improving the utilization rate of the mold table and the curing efficiency. However, in actual use, in order to facilitate the movement of the curing cover relative to the mold table, it is necessary to frequently disassemble and assemble its end cover, which is quite cumbersome. At the same time, frequent disassembly and assembly may affect its sealing performance and affect the curing effect. Utility Model Content

[0004] The purpose of this invention is to provide a carbon dioxide curing device for small precast concrete components to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon dioxide curing device for small precast concrete components, including a curing cover, a mounting bracket detachably installed on the outside of the curing cover, and several movable rods movably arranged on both sides of the mounting bracket via a linear drive mechanism. The curing cover is a cavity with an open bottom. The linear drive mechanism is used to drive the movable rods to move up and down relative to the mounting bracket. The movable rods extend to the bottom of the mounting bracket and are fixed with casters.

[0006] Furthermore, the maintenance cover includes a tapered section whose size gradually increases from top to bottom and a vertical section located below the tapered section, with an air inlet provided on the outer wall of the vertical section.

[0007] Furthermore, the bottom edge of the vertical section is vertically bent and has a flange, and a sealing gasket is provided at the bottom of the flange.

[0008] Furthermore, a threaded hole is provided through the flange.

[0009] Furthermore, the mounting bracket includes horizontal plates symmetrically arranged on both sides of the maintenance cover and a U-shaped frame connecting the two horizontal plates, wherein the horizontal plates are slidably connected to the movable rod.

[0010] Furthermore, the protective cover is symmetrically provided with limiting grooves on both sides, and the side of the horizontal plate closest to the limiting groove is provided with a slide rail that matches the limiting groove.

[0011] Furthermore, when the horizontal plate is inserted into the limiting groove, the top of the inner sidewall of the U-shaped frame abuts against the top of the curing cover.

[0012] Furthermore, the linear drive mechanism includes a connecting plate connecting several movable rods, a threaded rod vertically mounted above the mounting bracket via a support seat, and a motor driving the threaded rod to rotate. The connecting plate is threadedly connected to the threaded rod.

[0013] Furthermore, it also includes a limiting component for limiting the position of the maintenance cover and the mounting bracket. The limiting component includes at least two positioning rods vertically fixed to the connecting plate and a limiting seat fixed to the outer wall of the maintenance cover. The limiting seat corresponds to the positioning rods one by one, and the limiting seat has a through hole adapted to the positioning rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The carbon dioxide curing device for the small precast concrete component can adjust the up and down position of the curing cover by setting up a curing cover, mounting bracket, movable rod, caster wheel and linear drive mechanism. When the curing cover is higher than the top of the mold, the position of the curing cover can be adjusted, which is convenient for curing small precast concrete components on different molds. The operation is simple and quick.

[0016] (2) By setting limit grooves and limit components, it is convenient to assemble and disassemble the mounting bracket, movable rod, caster wheel and linear drive mechanism with the maintenance cover, reducing equipment investment. At the same time, the maintenance covers that are not used can be stacked up and down to reduce space occupation and facilitate storage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a schematic diagram of the stacked state of the curing cover of this utility model.

[0020] In the diagram: 1. Curing cover; 101. Conical section; 102. Vertical section; 103. Air inlet; 104. Flanged edge; 2. Mounting bracket; 201. U-shaped frame; 202. Horizontal plate; 3. Movable rod; 4. Casters; 5. Linear drive mechanism; 501. Connecting plate; 502. Support base; 503. Threaded rod; 504. Motor; 6. Limiting groove; 7. Limiting assembly; 701. Positioning rod; 702. Limiting seat; 8. Sealing gasket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between 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. Furthermore, in the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "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 the present utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0022] Please see Figure 1-3 This utility model provides an embodiment of a carbon dioxide curing device for small precast concrete components, including a curing cover 1, a mounting bracket 2 detachably installed on the outside of the curing cover 1, and four movable rods 3 movably arranged on both sides of the mounting bracket 2 via a linear drive mechanism 5. In this embodiment, the curing cover 1 is a cavity with an open bottom. The curing cover 1 includes a tapered section 101 whose size gradually increases from top to bottom and a vertical section 102 located below the tapered section 101. An air inlet 103 is provided on the outer wall of the vertical section 102. In use, the curing cover 1 is placed over the top of the mold table from top to bottom, and cooperates with the mold table to form a sealed cavity inside. Carbon dioxide is then introduced into the cavity through the air inlet 103 to cure the small precast concrete components. (See attached drawing.) Figure 3 The maintenance cover 1 is designed with a conical structure. When the maintenance cover 1 is not in use, it can be stacked on top of each other to reduce the space occupied and prevent it from tipping over.

[0023] In this embodiment, a flange 104 is provided at the bottom edge of the vertical section 102, and a sealing gasket 8 is provided at the bottom of the flange 104, which can improve the sealing performance when the curing cover 1 is covered on the top of the mold table.

[0024] Furthermore, a threaded hole is provided through the flange 104, which can be used to lock the curing cover 1 to the mold table with bolts to further ensure the internal sealing.

[0025] In this embodiment, the mounting bracket 2 includes horizontal plates 202 symmetrically arranged on both sides of the curing cover 1 and a U-shaped frame 201 connecting the two horizontal plates 202. The distance between the two horizontal plates 202 is greater than the length of the curing cover 1. The U-shaped frame 201 is specifically arranged with its opening facing downwards. Its two sides are fixedly connected to the horizontal plates 202 respectively. The horizontal plates 202 are slidably connected to the movable rod 3. The curing cover 1 has T-shaped limiting grooves 6 symmetrically arranged on both sides. The side of the horizontal plate 202 closest to the limiting groove 6 is provided with a slide rail that matches the limiting groove 6. When in use, inserting the slide rail into the limiting groove 6 will allow the curing cover 1 and the mounting bracket 2 to move up and down synchronously.

[0026] In this embodiment, when the horizontal plate 202 is inserted into the limiting slide groove 6, the top of the inner side wall of the U-shaped frame 201 abuts against the top of the curing cover 1. When in use, the U-shaped frame 201 can be attached to the top of the curing cover 1, and then the height of the universal wheel 4 can be adjusted to facilitate pushing the slide rail on one side of the horizontal plate 202 into the interior of the limiting slide groove 6.

[0027] The linear drive mechanism 5 is used to drive the movable rods 3 to move up and down relative to the mounting bracket 2. The movable rods 3 extend to the bottom of the mounting bracket 2 and are fixed with casters 4. The linear drive mechanism 5 includes a connecting plate 501 connecting the four movable rods 3, a threaded rod 503 vertically mounted above the mounting bracket 2 via a support base 502, and a motor 504 that drives the threaded rod 503 to rotate. The connecting plate 501 is threadedly connected to the threaded rod 503. Specifically, the connecting plate 501 is an "I"-shaped plate structure. The top ends of the four movable rods 3 are respectively fixedly connected to the four corners of the connecting plate 501. When the motor 504 drives the threaded rod 503 to rotate, it can drive the connecting plate 501 to move up and down relative to the threaded rod 503, thereby driving each movable rod 3 and caster 4 to move up and down synchronously relative to the mounting bracket 2.

[0028] In this embodiment, the limiting groove 6 is specifically a long strip structure with one open end and one through end. The length of the horizontal plate 202 and the limiting groove 6 are adapted to each other. The horizontal plate 202 is pushed into the limiting groove 6. When one end of the horizontal plate 202 is pushed to abut against the end inside the limiting groove 6, the initial positioning is achieved. Furthermore, the carbon dioxide curing device for small precast concrete components also includes a limiting component 7 for limiting the curing cover 1 and the mounting bracket 2. The limiting component 7 includes two positioning rods 701 vertically fixed on both sides of the bottom end of the connecting plate 501 and a limiting seat 702 fixed on the outer wall of the curing cover 1. The limiting seat 702 and the positioning rods 701 are fixed to each other. The rods 701 are one-to-one, and the limiting seat 702 is provided with through holes that are adapted to the positioning rods 701. The horizontal plate 202 is also provided with through holes to accommodate the up and down movement of the positioning rods 701. The length of the positioning rods 701 is less than the overall length of the movable rods 3 and the casters 4. When it is necessary to adjust the position of the maintenance cover 1, the connecting plate 501 drives the positioning rods 701 to move downward, so that they can pass through the through holes on the limiting seat 702 and the horizontal plate 202. This prevents the horizontal plate 202 from being inserted into the limiting slide groove 6 and then moving relative to the limiting slide groove 6 on the horizontal plane, thereby improving the stability of the movement of the maintenance cover 1 and making it more convenient to use.

[0029] Working principle: When in use, insert the slide rails on the inner side of the two horizontal plates 202 into the inner side of the two limiting slide grooves 6 respectively. Then, drive the threaded rod 503 to rotate through the motor 504, which will drive the connecting plate 501 to move downward relative to the mounting bracket 2. Then, drive the movable rod 3 and the universal wheel 4 to move downward relative to the curing cover 1 and the mounting bracket 2 until the bottom of the curing cover 1 is higher than the top of the mold table. At this time, the curing cover 1 can be pushed to move horizontally, and the position of the curing cover 1 can be adjusted to cure the precast concrete components of different mold tables.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A carbon dioxide curing device for small concrete precast elements, characterized by: The utility model provides a kind of maintenance cover (1), detachably mounted installation support (2) on the outside of maintenance cover (1) and several movable rods (3) movably arranged on the both sides of installation support (2) by linear drive mechanism (5), the maintenance cover (1) is the cavity of bottom end opening, the linear drive mechanism (5) is used to drive movable rod (3) to move up and down relative to installation support (2), the movable rod (3) extends below installation support (2) and is fixed with universal wheel (4).

2. The carbon dioxide curing device for small-sized concrete precast members according to claim 1, characterized by: The maintenance cover (1) includes a tapered section (101) with gradually increasing size from top to bottom and a vertical section (102) arranged below the tapered section (101), and an air inlet (103) is arranged on the outer side wall of the vertical section (102).

3. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 2, characterized by: The vertical section (102) is provided with a flange (104) at the bottom edge, and the bottom end of the flange (104) is provided with a sealing gasket (8).

4. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 3, characterized by: A threaded hole is provided through the flange (104).

5. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 1, characterized by: The installation support (2) includes a horizontal plate (202) symmetrically arranged on both sides of the maintenance cover (1) and a U-shaped bracket (201) connecting the two horizontal plates (202), and the horizontal plate (202) is slidably connected with the movable rod (3).

6. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 5, characterized by: Limiting sliding grooves (6) are symmetrically arranged on both sides of the maintenance cover (1), and the horizontal plate (202) is provided with a sliding rail matched with the limiting sliding groove (6) on one side close to the limiting sliding groove (6).

7. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 5, characterized by: When the horizontal plate (202) is inserted into the limiting sliding groove (6), the top end of the inner side wall of the U-shaped bracket (201) abuts against the top end of the maintenance cover (1).

8. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 5, characterized by: The linear drive mechanism (5) includes a connecting plate (501) connected with the movable rods (3), a threaded rod (503) vertically mounted above the installation support (2) through a support seat (502), and a motor (504) driving the threaded rod (503) to rotate, and the connecting plate (501) is threadedly connected with the threaded rod (503).

9. The carbon dioxide curing apparatus for small-sized concrete precast members according to claim 8, characterized by: It also includes a limiting assembly (7) for limiting the maintenance cover (1) and the installation support (2), the limiting assembly (7) includes at least two positioning rods (701) vertically fixed on the connecting plate (501) and a limiting seat (702) fixed on the outer side wall of the maintenance cover (1), the limiting seat (702) corresponds to the positioning rod (701) one by one, and a through hole matched with the positioning rod (701) is provided through the limiting seat (702).

Citation Information

Patent Citations

  • Movable maintenance cover and movable maintenance device

    CN209665761U