A precast concrete form

Abstract

The utility model discloses a kind of precast concrete moulds, it includes outer mould, support assembly and inner mould, outer mould has accommodating cavity in, and accommodating cavity top end is equipped with taking and placing mouth. Support assembly includes base frame and movable frame, base frame is installed in outer mould outside, movable frame is slidably arranged in base frame, and its sliding track has the first position of extension into accommodating cavity, and with the second position of separation accommodating cavity. Inner mould includes first bottom plate, adjusting part and several first side plates, first bottom plate is installed in movable frame, several first side plates are circumferentially movably arranged along first bottom plate and are spliced to form inner forming surface with first bottom plate, and when movable frame is in the first position, pouring area is formed between inner forming surface and accommodating cavity inner wall, adjusting part is transmission connection several first side plates, to adjust the relative position of several first side plates and first bottom plate. Above-mentioned precast concrete mould reduces the resistance suffered in the process that inner mould separates from concrete in demoulding process, reduces the difficulty of taking out inner mould.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete, specifically to a precast concrete mold. Background Technology

[0002] Precast concrete refers to concrete products made in a factory or on-site (not at the final design location).

[0003] Existing precast concrete formwork can be found in patent application number CN202011557609.0, which provides a mold for a precast culvert, comprising nested inner and outer molds, allowing concrete to be poured between them. After the concrete has solidified, the inner and outer molds need to be removed from under the concrete. However, during demolding, the forming surface of the inner mold adheres to the solidified concrete, making it difficult for the inner mold to detach from the solidified concrete.

[0004] Therefore, how to reduce the difficulty of the inner mold separating from the solidified concrete is a technical problem that urgently needs to be addressed. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a precast concrete mold to solve the technical problem that the inner mold is difficult to detach from the solidified concrete in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a precast concrete mold, which includes:

[0008] The outer mold has a receiving cavity inside, and the top of the receiving cavity has an opening for taking out and putting in.

[0009] A support assembly includes a base frame and a movable frame. The base frame is mounted on the outside of the outer mold, and the movable frame is slidably disposed on the base frame. The movable frame has a first position extending into the receiving cavity and a second position disengaging from the receiving cavity along its sliding trajectory.

[0010] The inner mold includes a first base plate, an adjusting member, and several first side plates. The first base plate is mounted on the movable frame. The several first side plates are movably arranged along the circumference of the first base plate and spliced ​​with the first base plate to form an inner forming surface. When the movable frame is in the first position, a casting area is formed between the inner forming surface and the inner wall of the accommodating cavity. The adjusting member is drivenly connected to the several first side plates to adjust the relative position of the several first side plates and the first base plate.

[0011] In some embodiments, one end of the first side plate is rotatably mounted on the movable frame, and the rotating end of the first side plate overlaps with the edge of the first base plate.

[0012] In some embodiments, the edge of the first base plate is provided with a plurality of receiving grooves corresponding to a plurality of the first side plates, and the rotating end of the first side plate is at least partially embedded in the receiving groove.

[0013] In some embodiments, the adjusting member includes a plurality of hydraulic cylinders corresponding one-to-one with a plurality of the first side plates, the cylinder body of the hydraulic cylinder being rotatably connected to the movable frame, and the piston rod of the hydraulic cylinder being rotatably connected to the first side plate.

[0014] In some embodiments, the support assembly further includes a drive member that is tractively connected to the movable frame to switch the movable frame between the first position and the second position.

[0015] In some embodiments, the movable frame has a rack laid along its sliding direction, the drive element includes a motor and a gear, the gear is rotatably mounted on the base frame and meshes with the rack, and the motor is drively connected to the gear to drive the gear to rotate.

[0016] In some embodiments, the movable frame is provided with guide rails, and the base frame is provided with guide grooves. The guide grooves are fitted onto the guide rails so that the movable frame can slide along the guide rails.

[0017] In some embodiments, the edge of the first side plate has a guide wedge surface.

[0018] In some embodiments, the outer mold includes a second base plate and a plurality of second side plates, the plurality of second side plates being arranged circumferentially along the second base plate, and the plurality of second side plates and the second base plate together forming the receiving cavity.

[0019] In some embodiments, the outer mold further includes a plurality of connectors, which detachably connect two adjacent second side plates.

[0020] Compared with the prior art, the precast concrete mold provided by this utility model has the following advantages:

[0021] First, adjust the movable frame to the first position, extending it into the receiving cavity. Then, use adjusting components to adjust and fix the relative positions of the first side plates and the first bottom plate. The first side plates and the first bottom plate are then joined to form an inner forming surface, creating a pouring area between the inner forming surface and the inner wall of the receiving cavity. Concrete can then be poured into this area. After the concrete has solidified, the adjusting components can be used again to move the first side plates, detaching them from the solidified concrete. Finally, adjust the movable frame to the second position, allowing the movable frame and the inner mold to detach together and exit the receiving cavity through the removal port. The precast concrete mold provided by this invention allows the first side plates to detach from the solidified concrete before the inner mold is removed, reducing the resistance encountered during the detachment process and simplifying the removal of the inner mold from the solidified concrete. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the precast concrete mold provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the support component structure provided in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the outer mold structure provided in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the movable frame structure provided in an embodiment of the present utility model;

[0026] Explanation of reference numerals in the attached drawings: outer mold 100, receiving cavity 110, loading and unloading port 120, second base plate 130, second side plate 140, connecting piece 150, support assembly 200, base frame 210, guide groove 211, movable frame 220, rack 221, guide rail 222, driving component 230, motor 231, gear 232, inner mold 300, first base plate 310, receiving groove 311, adjusting component 320, hydraulic cylinder 321, first side plate 330. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] To solve the technical problem of the inner mold 300 being difficult to remove from solidified concrete, this utility model provides a precast concrete mold that allows the inner mold 300 to be partially detached from the concrete before removal, thereby reducing the resistance encountered by the inner mold 300 during the detachment process.

[0029] It should be noted that the precast concrete mold of this utility model is used for, but not limited to, the casting of precast corridors. For ease of explanation, this utility model will only use the application of the precast concrete mold to the casting of precast corridors as an example. The principle of the precast concrete mold applied to other types of equipment is essentially the same as that applied to the casting of precast corridors, and will not be described in detail here.

[0030] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a precast concrete mold in one embodiment of the present invention. The precast concrete mold includes an outer mold 100, a support assembly 200, and an inner mold 300. The outer mold 100 has a receiving cavity 110, and the top of the receiving cavity 110 has a pick-and-place opening 120. The support assembly 200 includes a base frame 210 and a movable frame 220. The base frame 210 is installed on the outside of the outer mold 100, and the movable frame 220 is slidably disposed on the base frame 210. Its sliding trajectory has a first position extending into the receiving cavity 110 and a second position disengaging from the receiving cavity 110. The inner mold 300 includes a first base plate 310, an adjusting member 320, and several first side plates 330. The first base plate 310 is mounted on the movable frame 220. The several first side plates 330 are movably arranged along the circumference of the first base plate 310 and spliced ​​with the first base plate 310 to form an inner forming surface. When the movable frame 220 is in the first position, a casting area is formed between the inner forming surface and the inner wall of the accommodating cavity 110. The adjusting member 320 is connected to the several first side plates 330 to adjust the relative position of the several first side plates 330 and the first base plate 310.

[0031] In this embodiment, the movable frame 220 is first adjusted to the first position, extending into the receiving cavity 110. Then, the relative positions of the first side plates 330 and the first bottom plate 310 are adjusted and fixed using the adjusting member 320. The first side plates 330 and the first bottom plate 310 are then joined to form an inner molding surface, creating a pouring area between the inner molding surface and the inner wall of the receiving cavity 110. Concrete can then be poured into this area. After the concrete has solidified, the adjusting member 320 can be used again to move the first side plates 330, causing them to detach from the solidified concrete. Finally, the movable frame 220 is adjusted to the second position, allowing the movable frame 220, along with the inner mold 300, to detach from the receiving cavity 110 through the pick-and-place port 120. The precast concrete mold provided by this utility model can detach each of the first side plates 330 from the solidified concrete before removing the inner mold 300, thereby reducing the resistance encountered by the inner mold 300 during the process of detaching from the concrete and reducing the difficulty of removing the inner mold 300 from the solidified concrete.

[0032] Based on the above embodiments, in some embodiments, one end of the first side plate 330 is rotatably mounted on the movable frame 220, and the rotating end of the first side plate 330 overlaps with the edge of the first bottom plate 310. The relative position between the first side plate 330 and the first bottom plate 310 can be adjusted by rotating the first side plate 330 relative to the first bottom plate 310. During demolding, the first side plates 330 can be flipped one by one towards the movable frame 220, thereby allowing the first side plates 330 to detach from the solidified concrete.

[0033] In some embodiments, the edge of the first base plate 310 is provided with a plurality of receiving grooves 311 corresponding to a plurality of first side plates 330. The rotating end of the first side plate 330 is at least partially embedded in the receiving groove 311. The receiving groove 311 can protect the rotating end of the first side plate 330 and prevent concrete mortar from contacting the rotating end of the first side plate 330, thus preventing the rotating end of the first side plate 330 from being damaged by concrete mortar.

[0034] In some embodiments, the adjusting member 320 includes a plurality of hydraulic cylinders 321 corresponding one-to-one with a plurality of first side plates 330. The cylinder body of the hydraulic cylinder 321 is rotatably connected to the movable frame 220, and the piston rod of the hydraulic cylinder 321 is rotatably connected to the first side plate 330. Sliding the piston rod of the hydraulic cylinder 321 relative to the cylinder body of the hydraulic cylinder 321 can cause the first side plate 330 to rotate, thereby adjusting the relative position between the first side plate 330 and the first base plate 310.

[0035] In some embodiments, the support assembly 200 further includes a drive 230 that is drive-connected to the movable frame 220 to switch the movable frame 220 between a first position and a second position.

[0036] Based on the above embodiments, in some embodiments, the movable frame 220 has a rack 221 laid along its sliding direction, and the driving component 230 includes a motor 231 and a gear 232. The gear 232 is rotatably mounted on the base frame 210 and meshes with the rack 221. The motor 231 is connected to the gear 232 to drive the gear 232 to rotate. The motor 231 drives the gear 232 to rotate, and since the gear 232 and the rack 221 are meshed, the rotating gear 232 can push the movable frame 220 to slide.

[0037] In some embodiments, the movable frame 220 is provided with guide rails 222, and the base frame 210 has guide grooves 211. The guide grooves 211 fit onto the guide rails 222 so that the movable frame 220 can slide along the guide rails 222. Because the guide grooves 211 and the guide rails 222 cooperate with each other, the movable frame 220 slides along the guide grooves 211 under the guiding action of the guide grooves 211.

[0038] In some embodiments, the edge of the first side plate 330 has a guide wedge surface, which guides two adjacent first side plates 330 to align with each other.

[0039] In some embodiments, the outer mold 100 includes a second base plate 130 and a plurality of second side plates 140, the plurality of second side plates 140 being arranged circumferentially along the second base plate 130, and the plurality of second side plates 140 and the second base plate 130 together forming an accommodating cavity 110.

[0040] Based on the above embodiments, in some embodiments, the outer mold 100 further includes a plurality of connectors 150, which detachably connect two adjacent second side plates 140. During the casting process, the connectors 150 can be used to fix the adjacent second side plates 140. During the demolding process, the connectors 150 can be disassembled to allow the individual second side plates 140 to separate from each other, thus completing the demolding operation of the outer mold 100.

[0041] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below:

[0042] First, the movable frame 220 is adjusted to the first position using the drive component 230, allowing it to extend into the receiving cavity 110. The piston rod of the hydraulic cylinder 321 slides relative to its body, causing the first side plate 330 to rotate, thus adjusting the relative position between the first side plate 330 and the first bottom plate 310. This allows the first side plates 330 and the first bottom plate 310 to be joined together to form an inner forming surface, creating a pouring area between the inner forming surface and the inner wall of the receiving cavity 110. Concrete can then be poured into this area. After the concrete has solidified, the adjustment component 320 is used again to move the first side plate 330, causing it to detach from the solidified concrete. Finally, the drive component 230 is used again to adjust the movable frame 220 to the second position, allowing it and the inner mold 300 to detach from the receiving cavity 110 through the loading / unloading port 120. The precast concrete mold provided by this utility model can detach each of the first side plates 330 from the solidified concrete before removing the inner mold 300, thereby reducing the resistance encountered by the inner mold 300 during the process of detaching from the concrete and reducing the difficulty of removing the inner mold 300 from the solidified concrete.

[0043] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A precast concrete mold, characterized in that, include: The outer mold has a receiving cavity inside, and the top of the receiving cavity has an opening for taking out and putting in. A support assembly includes a base frame and a movable frame. The base frame is mounted on the outside of the outer mold, and the movable frame is slidably disposed on the base frame. The movable frame has a first position extending into the receiving cavity and a second position disengaging from the receiving cavity along its sliding trajectory. The inner mold includes a first base plate, an adjusting member, and several first side plates. The first base plate is mounted on the movable frame. The several first side plates are movably arranged along the circumference of the first base plate and spliced ​​with the first base plate to form an inner forming surface. When the movable frame is in the first position, a casting area is formed between the inner forming surface and the inner wall of the accommodating cavity. The adjusting member is drivenly connected to the several first side plates to adjust the relative position of the several first side plates and the first base plate.

2. The precast concrete mold according to claim 1, characterized in that, One end of the first side plate is rotatably mounted on the movable frame, and the rotating end of the first side plate overlaps with the edge of the first base plate.

3. The precast concrete mold according to claim 2, characterized in that, The first base plate has several receiving grooves on its edge that correspond one-to-one with several of the first side plates, and the rotating end of the first side plate is at least partially embedded in the receiving groove.

4. The precast concrete mold according to claim 2, characterized in that, The adjusting component includes a plurality of hydraulic cylinders corresponding one-to-one with a plurality of the first side plates. The cylinder body of the hydraulic cylinder is rotatably connected to the movable frame, and the piston rod of the hydraulic cylinder is rotatably connected to the first side plate.

5. The precast concrete mold according to claim 1, characterized in that, The support assembly further includes a drive component, which is tractively connected to the movable frame to switch the movable frame between the first position and the second position.

6. The precast concrete mold according to claim 5, characterized in that, The movable frame has a rack laid along its sliding direction. The driving component includes a motor and a gear. The gear is rotatably mounted on the base frame and meshes with the rack. The motor is connected to the gear to drive the gear to rotate.

7. The precast concrete mold according to claim 1, characterized in that, The movable frame is provided with guide rails, and the base frame is provided with guide grooves. The guide grooves are fitted onto the guide rails so that the movable frame can slide along the guide rails.

8. The precast concrete mold according to claim 1, characterized in that, The first side plate has a guide wedge surface along its edge.

9. The precast concrete mold according to claim 1, characterized in that, The outer mold includes a second base plate and a plurality of second side plates, the plurality of second side plates being arranged circumferentially along the second base plate, and the plurality of second side plates and the second base plate together forming the receiving cavity.

10. The precast concrete mold according to claim 9, characterized in that, The outer mold also includes several connectors, which are detachably connected to two adjacent second side plates.

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