Modular self-curing preparation mold for cement concrete well lid

Abstract

The application discloses a kind of modular self-maintenance type preparation mould of cement concrete well lid, belong to cement concrete well lid mould technical field, including outer frame and temperature and humidity control module component;The outer frame is provided with mould base in it, and a plurality of side baffles are arranged in the mould base, wherein, parallel distribution between each side baffle, bottom plate is arranged between adjacent side baffles, and the bottom plate is located at the bottom of mould base, front baffle is arranged at the front side of the bottom plate, rear baffle is arranged at the rear side of the bottom plate, and a plurality of detachable magnetic suction inner moulds are arranged on each bottom plate, the temperature and humidity control module component includes top cover, the top cover is covered in the top opening of mould base in the middle portion, the middle portion of the top cover is equipped with evaporation pipe, temperature control system is equipped on one side of the top cover, and humidity control system is arranged on the other side of the top cover, and the mould can complete the forming, in-situ curing and demolding process of multiple different concrete well lid components at a time.

Description

Technical Field

[0001] This invention belongs to the technical field of cement concrete manhole cover molds, and relates to a modular self-curing preparation mold for cement concrete manhole covers. Background Technology

[0002] Cement concrete manhole covers are an indispensable part of urban infrastructure. They cover inspection wells for rainwater and sewage pipe systems. Their main functions are drainage and flood discharge, prevention of foreign objects or people falling, ensuring traffic safety, and facilitating maintenance. They are mostly used in low-load-bearing areas such as inside residential areas, sidewalks, and green belts.

[0003] The initial preparation of concrete manhole covers is a crucial step: different mold styles determine the structure of the concrete manhole cover and the shape of its drainage holes, thus affecting the aesthetics and drainage performance of the concrete manhole cover; whether the curing conditions are sufficient and timely and the material uniformity greatly affect the quality and service life of the manhole cover; the demolding method and on-site operation procedures also affect the preparation efficiency and cost control of concrete manhole covers.

[0004] However, most existing concrete manhole cover molds on the market are either simple types made of polypropylene injection molding or heavy cast iron splicing types, which have significant disadvantages. First, these manhole cover molds lack an in-situ curing function module. Especially in the summer sun, relying solely on external in-situ curing with a thin film and damp cloth is far from sufficient to meet the standard curing conditions, thus affecting the quality of the concrete. If indoor curing is used, the process of demolding and transporting such a large concrete component would greatly reduce production efficiency and is extremely inconvenient. Furthermore, existing concrete manhole cover molds have a fixed design, and each set can only produce one manhole cover component, making it impossible to simultaneously produce multiple manhole cover structures with different drainage hole structures from a single mold. In addition, during in-situ demolding, workers remove the mold by directly flipping the manhole cover component, which also causes damage to the edges of the concrete component, affecting its service life. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a modular self-curing preparation mold for cement concrete manhole covers. This mold can complete the molding, in-situ curing and demolding processes of multiple different concrete manhole cover components at one time.

[0006] To achieve the above objectives, this invention discloses a modular self-curing preparation mold for cement concrete manhole covers, including an outer frame and a temperature and humidity control module component.

[0007] A mold base is provided inside the outer frame, and several side baffles are provided inside the mold base. The side baffles are arranged in parallel, and a bottom plate is provided between adjacent side baffles. The bottom plate is located at the bottom of the mold base. A front baffle is provided on the front side of the bottom plate, and a rear baffle is provided on the rear side of the bottom plate. Several detachable magnetic inner molds are provided on each bottom plate. The temperature and humidity control module component includes a top cover. The middle part of the top cover covers the top opening of the mold base. An evaporation tube is provided in the middle part of the top cover. A temperature control system is provided on one side of the top cover, and a humidity control system is provided on the other side of the top cover. The temperature control system is connected to the evaporation tube, and the humidity control system is connected to the inside of the mold base.

[0008] A further improvement of the modular self-curing preparation mold for cement concrete manhole covers described in this invention is as follows:

[0009] Furthermore, a sampling hole is provided on the front of the outer frame, and a demolding cover is provided on the front of the outer frame. The demolding cover covers the sampling hole, and the bottom of the demolding cover is connected to the outer frame by a flag-shaped hinge.

[0010] Furthermore, a magnetic snap fastener is provided at the upper end of the demolding cover, and the magnetic snap fastener is inserted into a slot on the outer frame.

[0011] Furthermore, it also includes a sealed housing, which is disposed on the bottom, back, left side and right side of the outer frame.

[0012] Furthermore, the bottom of the outer frame is provided with several cylindrical beams, each cylindrical beam including an inner layer. The bottom of the outer frame is provided with an installation groove, the two ends of the inner layer of the cylindrical beam are fixed in the installation groove, the bearing is disposed on the outer side of the inner layer of the cylindrical beam, and the outer layer of the cylindrical beam is disposed on the outer side of the bearing.

[0013] Furthermore, the bottom of the detachable magnetic inner mold is provided with a magnetic strip, and the top of the detachable magnetic inner mold is provided with several grooves.

[0014] Furthermore, the humidity control system includes a water storage tank and a moisture delivery module. The water storage tank is installed on the top cover, and a water injection valve is provided on the top of the water storage tank. An atomizer is installed inside the water storage tank, and a moisture transmission port is provided on the top of the water storage tank. The moisture delivery module is connected to the moisture transmission port. A fan and a radiator are provided inside the moisture delivery module, and a moisture port is provided on the moisture delivery module. The moisture port is connected to the inside of the mold base.

[0015] Furthermore, the humidity control system also includes a humidity control module, which is located at the front end of the top cover. A humidity sensor is installed in the moisture port. The humidity control module is equipped with a humidity control panel and is connected to the humidity control panel, the humidity sensor, the atomizer, the fan, and the radiator.

[0016] Furthermore, sealing rings are provided at both the sampling hole and the top of the mold base.

[0017] Furthermore, both the top of the front baffle and the top of the rear baffle are provided with pull rod handles.

[0018] The present invention has the following beneficial effects:

[0019] In practical operation, the modular self-curing preparation mold for cement concrete manhole covers described in this invention has parallel side panels distributed between each other, with a base plate between adjacent side panels. The base plate is located at the bottom of the mold base, with a front baffle on the front side and a rear baffle on the rear side. Each base plate is equipped with several detachable magnetic inner molds. The base plate, its adjacent side panels, front baffle, and rear baffle form an independent space, allowing for the simultaneous molding of multiple different concrete manhole cover components. Simultaneously, a temperature control system is provided on one side of the top cover, and a humidity control system is provided on the other side, enabling in-situ curing of multiple different concrete manhole cover components in one operation. Furthermore, during demolding, the front baffle, rear baffle, and side panels are pulled out, allowing for the demolding of multiple different concrete manhole covers in one go. The structure is simple and highly practical. It should be noted that this invention adopts a modular design, integrating the temperature and humidity control systems into a temperature and humidity control module component. This provides the cement concrete manhole cover mold with the function of on-site in-situ curing, effectively solving the problems of concrete shrinkage cracking and quality reduction caused by untimely and insufficient external wet cloth curing. It also avoids the cumbersome operations of demolding, handling, and repeated watering required in traditional manhole cover manufacturing. Furthermore, by separating the mold base from the temperature and humidity control module component, when vibration leveling of the concrete within the mold base is required, the vibration process will not affect the electronic components inside the temperature and humidity control module component, thereby extending the service life of the mold device. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the outer frame structure in this invention;

[0023] Figure 3 This is a top cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the concrete demolding and sliding process in this invention;

[0025] Figure 5 This is the front view of the present invention;

[0026] Figure 6 This is a schematic diagram of the detachable magnetic inner mold in this invention;

[0027] Figure 7 This is a schematic diagram of the cross-section of the cylindrical beam in this invention.

[0028] The components include: 1. Mold base; 2. Sealed outer shell; 3. Outer frame; 4. Front baffle; 5. Side baffle; 6. Base plate; 7. Detachable magnetic inner mold; 8. Demolding outer cover; 9. Temperature and humidity control module components; 10. Temperature control panel; 11. Humidity control panel; 12. Flag hinge; 13. Magnetic buckle; 14. Cylindrical beam; 15. Outer layer of cylindrical beam; 16. Bearing; 17. Groove; 18. Magnetic strip; 19. Temperature control system; 20. Humidity control system; 21. Evaporator tube; 22. Temperature regulator. Module; 23. Compressor; 24. Condenser; 25. Expansion valve; 26. Water tank; 27. Moisture delivery module; 28. Humidity control module; 29. ​​Water inlet valve; 30. Atomizer; 31. Moisture transmission port; 32. Fan; 33. Radiator; 34. Moisture port; 35. Humidity sensor; 36. Power socket; 37. Power cord; 38. Control switch; 39. Pull handle; 40. Sealing ring; 41. Slot; 42. Spring; 43. Limiting groove; 44. Inner layer of cylindrical beam. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this invention generally indicates that the preceding and following objects have an "or" relationship.

[0033] It should be understood that although terms such as first, second, third, etc., may be used in the embodiments of the present invention to describe the preset range, these preset ranges should not be limited to these terms. These terms are only used to distinguish the preset ranges from one another. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0034] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0037] refer to Figures 1 to 7The modular self-curing mold for cement concrete manhole covers of the present invention includes a sealed outer shell 2, an outer frame 3, and a temperature and humidity control module component 9.

[0038] The sealed outer shell 2 is disposed on the bottom, back, left side and right side of the outer frame 3. A sampling hole is provided on the front of the outer frame 3. A demolding cover 8 is provided on the front of the outer frame 3. The demolding cover 8 covers the sampling hole. The bottom of the demolding cover 8 is connected to the outer frame 3 by a flag-shaped hinge 12. A magnetic buckle 13 is provided at the upper end of the demolding cover 8. The magnetic buckle 13 is inserted into the slot 41 on the outer frame 3.

[0039] The outer frame 3 is provided with a mold base 1. The mold base 1 is provided with several side baffles 5, wherein the side baffles 5 are distributed in parallel. A bottom plate 6 is provided between adjacent side baffles 5. The bottom plate 6 is located at the bottom of the mold base 1. A front baffle 4 is provided on the front side of the bottom plate 6 and a rear baffle is provided on the rear side of the bottom plate 6. The bottom plate 6, together with the adjacent front baffle 4, rear baffle and side baffles 5, forms an independent space with a top opening. Pull rod handles 39 are provided on the top of the front baffle 4 and the top of the rear baffle to facilitate lifting the front baffle 4 and the rear baffle.

[0040] The bottom of the outer frame 3 is provided with several cylindrical beams 14, each cylindrical beam 14 including an inner cylindrical beam 44. The bottom of the outer frame 3 is provided with an installation groove, and both ends of the inner cylindrical beam 44 are fixed in the installation groove. The bearing 16 is located on the outside of the inner cylindrical beam 44, and the outer cylindrical beam 15 is located on the outside of the bearing 16. When the concrete manhole cover is demolded and slid out after curing, the outer cylindrical beam 15 can rotate on its own, so that the contact mode between the concrete manhole cover and the outer cylindrical beam 15 changes from sliding friction to rolling friction, which facilitates easy demolding.

[0041] The base plate 6 is provided with several detachable magnetic inner molds 7. The bottom of the detachable magnetic inner mold 7 is provided with a magnetic strip 18, and the top of the detachable magnetic inner mold 7 is provided with several grooves 17, so that the detachable magnetic inner mold 7 can be manually pulled out from between the concrete manhole covers. Specifically, the detachable magnetic inner mold 7 has two specifications, with outer diameters of 190mm×30mm×60mm and 90mm×30mm×60mm (length×width×height). The detachable magnetic inner mold 7 can be magnetically attached to the base plate 6 in any direction and in any number, so as to realize multiple styles of drainage holes of the concrete manhole cover.

[0042] The temperature and humidity control module component 9 includes a top cover, the middle of which covers the top opening of the mold base 1. An evaporation tube 21 is provided in the middle of the top cover, and a temperature control system 19 is provided on the left side of the top cover. The temperature control system 19 includes a temperature adjustment module 22, a compressor 23, a condenser 24, an expansion valve 25, and a temperature control panel 10. The temperature adjustment module 22, the compressor 23, the condenser 24, the expansion valve 25, and the temperature control panel 10 are connected in series.

[0043] A humidity control system 20 is installed on the right side of the top cover. The humidity control system 20 includes a water storage tank 26, a moisture delivery module 27, and a humidity control module 28. The water storage tank 26 is located on the back of the top cover. A water inlet 29 is provided at the top of the water storage tank 26. An atomizer 30 is installed inside the water storage tank 26. A moisture transmission port 31 is provided at the top of the water storage tank 26. The moisture delivery module 27 is connected to the moisture transmission port 31. A fan 32 and a radiator 33 are provided inside the moisture delivery module 27. A moisture port 34 is provided on the moisture delivery module 27. The moisture port 34 is connected to the module. The base 1 is connected to the top cover for humidity curing of concrete. A humidity sensor 35 is installed in the moisture port 34. The humidity control module 28 is located at the front end of the top cover. The humidity control module 28 is equipped with a humidity control panel 11, which is connected to the humidity control system 20. The power socket 36 is connected to the power interface on the top cover via a power cord 37 to provide power. The power interface is connected to the power interface of the humidity control system 20 and the power interface of the temperature control system 19 via a control switch 38, effectively connecting the temperature control system 19 and the humidity control system 20 in parallel.

[0044] In this embodiment, sealing rings 40 are provided at the sampling hole and the top of the mold base 1 to ensure the sealing contact between the temperature and humidity control module component 9 and the mold base 1, and to ensure the tight contact between the demolding cover 8 and the outer frame 3.

[0045] The rear baffle, front baffle 4, side baffle 5, bottom plate 6, and detachable magnetic inner mold 7 are all made of stainless steel and have stable rigidity that does not change with the volume of concrete.

[0046] The magnetic buckle 13 is equipped with a spring 42 and a limiting groove 43 inside.

[0047] In actual operation, the front baffle 4, rear baffle, side baffle 5, bottom plate 6, and detachable magnetic inner mold 7 need to be lubricated before assembly. This facilitates the removal of the front baffle 4, rear baffle, and side baffle 5 after the concrete has hardened and formed in the initial 24 hours. This operation is to expose more of the concrete manhole cover structure so that it can be fully cured in situ. After the concrete has cured for 28 days, the temperature and humidity control module component 9 is removed first, and the demolding cover 8 is opened. Then, the back of the mold base 1 can be slightly raised, and the concrete manhole cover can be tilted and slid out from the front by its own weight to achieve convenient demolding.

[0048] The specific operation process of this invention is as follows:

[0049] 1) Apply lubricating oil to the sides of the front baffle 4, rear baffle, side baffle 5, bottom plate 6 and detachable magnetic inner mold 7. Then, assemble the bottom plate 6, front baffle 4, rear baffle, side baffle 5 and detachable magnetic inner mold 7 in the mold base 1 in sequence, and close the demolding cover 8 so that the magnetic buckle 13 is tightly locked in the slot 41.

[0050] 2) Pour the well-mixed cement concrete mixture into the mold, and at the same time tamp or vibrate it evenly with a tamping rod and smooth it with a scraper. Then open the water inlet 29 to fill the water tank 26 with water, then close the water inlet 29 and then connect the power supply.

[0051] 3) Tightly cover the temperature and humidity control module component 9 with the mold base 1, turn on the control switch 38, and set the required temperature and humidity parameters in the temperature control panel 10 and humidity control panel 11 respectively to perform the first 24-hour hardening and curing of the internal concrete.

[0052] 4) After 24 hours of curing, open the temperature and humidity control module component 9, hold the groove 17 and pull out all the detachable magnetic inner molds 7, and hold the pull rod handle 39 and pull out the front baffle 4, rear baffle and side baffle 5. Then open the demolding outer cover 8 and hold the pull rod handle 39 and pull out the bottom plate 6. Then close the demolding outer cover 8, and tightly close the temperature and humidity control module component 9 back onto the mold base 1. Set the required temperature and humidity standard curing conditions and perform 28 days of in-situ curing of the concrete manhole cover inside the mold base 1. During this period, check the water level in the water storage tank 26 and add water in time if the water level is insufficient.

[0053] 5) After the 28-day in-situ curing period is completed, turn off the control switch 38, remove the temperature and humidity control module component 9, open the demolding cover 8, and slightly tilt the mold base 1 so that the concrete manhole cover can slide out from the front of the outer frame 3 by its own weight. Alternatively, the concrete manhole cover can be lifted out from the top of the outer frame 3 by manpower.

[0054] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0055] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0056] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A modular self-curing mold for preparing cement concrete manhole covers, characterized in that, Includes the outer frame (3) and the temperature and humidity control module component (9); The outer frame (3) is provided with a mold base (1), and the mold base (1) is provided with several side baffles (5). The side baffles (5) are distributed in parallel. A bottom plate (6) is provided between adjacent side baffles (5). The bottom plate (6) is located at the bottom of the mold base (1). A front baffle (4) is provided on the front side of the bottom plate (6), and a rear baffle is provided on the rear side of the bottom plate (6). Several detachable magnetic inner molds (7) are provided on each bottom plate (6). The temperature and humidity control module component (9) includes a top cover. The middle part of the top cover covers the top opening of the mold base (1). An evaporation tube (21) is provided in the middle part of the top cover. A temperature control system (19) is provided on one side of the top cover. A humidity control system (20) is provided on the other side of the top cover. The temperature control system (19) is connected to the evaporation tube (21), and the humidity control system (20) is connected to the inside of the mold base (1). The bottom of the detachable magnetic inner mold (7) is provided with a magnetic strip (18), and the top of the detachable magnetic inner mold (7) is provided with several grooves (17).

2. The modular self-curing preparation mold for cement concrete manhole covers according to claim 1, characterized in that, The outer frame (3) has a sampling hole on its front side and a demolding cover (8) on its front side. The demolding cover (8) covers the sampling hole and the bottom of the demolding cover (8) is connected to the outer frame (3) by a flag hinge (12).

3. The modular self-curing preparation mold for cement concrete manhole covers according to claim 2, characterized in that, The upper end of the demolding cover (8) is provided with a magnetic buckle (13), which is inserted into the slot (41) on the outer frame (3).

4. The modular self-curing preparation mold for cement concrete manhole covers according to claim 2, characterized in that, It also includes a sealed housing (2), which is disposed on the bottom, back, left side and right side of the outer frame (3).

5. The modular self-curing preparation mold for cement concrete manhole covers according to claim 2, characterized in that, The humidity control system (20) includes a water storage tank (26) and a moisture delivery module (27). The water storage tank (26) is located on the top cover. A water injection valve (29) is located on the top of the water storage tank (26). An atomizer (30) is located inside the water storage tank (26). A moisture transmission port (31) is located on the top of the water storage tank (26). The moisture delivery module (27) is connected to the moisture transmission port (31). A fan (32) and a radiator (33) are located inside the moisture delivery module (27). A moisture port (34) is located on the moisture delivery module (27). The moisture port (34) is connected to the interior of the mold base (1).

6. The modular self-curing preparation mold for cement concrete manhole covers according to claim 5, characterized in that, The humidity control system (20) further includes a humidity control module (28), which is located at the front end of the top cover. A humidity sensor (35) is provided in the moisture port (34). A humidity control panel (11) is provided on the humidity control module (28). The humidity control module (28) is connected to the humidity control panel (11), the humidity sensor (35), the atomizer (30), the fan (32), and the radiator (33).

7. The modular self-curing preparation mold for cement concrete manhole covers according to claim 2, characterized in that, A sealing ring (40) is provided at the sampling hole and at the top of the mold base (1).

8. The modular self-curing preparation mold for cement concrete manhole covers according to claim 1, characterized in that, A lever handle (39) is provided on the top of both the front baffle (4) and the rear baffle.

9. The modular self-curing preparation mold for cement concrete manhole covers according to claim 1, characterized in that, The bottom of the outer frame (3) is provided with several cylindrical beams (14), each cylindrical beam (14) including a cylindrical beam inner layer (44). The bottom of the outer frame (3) is provided with an installation groove. The two ends of the cylindrical beam inner layer (44) are fixed in the installation groove. The bearing (16) is located on the outside of the cylindrical beam inner layer (44), and the cylindrical beam outer layer (15) is located on the outside of the bearing (16).

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