CN214136563U

CN214136563U - Prefabricated part cavity mould, combined mould and prefabricated part

Info

Publication number: CN214136563U
Application number: CN202022947099.XU
Authority: CN
Inventors: 朱凤起
Original assignee: Chengde Green Building Energy Saving Technology Co ltd
Current assignee: Chengde Green Building Energy Saving Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-12-11
Publication date: 2021-09-07
Anticipated expiration: 2030-12-11
Also published as: CN112589971A

Abstract

The utility model discloses a prefabricated component cavity mould, including the mould main part, the surface texture of mould main part has concave-convex structure, makes to pour the concrete on mould main part surface solidify the back with concave-convex structure combines together. The prefabricated component cavity mould can be left in the concrete after making, both can increase the frictional force between the new and old concrete, play the reinforcing action to concrete structure, remove the flow of demolising the cavity mould and washing the mould simultaneously from, promoted the efficiency of construction.

Description

Prefabricated part cavity mould, combined mould and prefabricated part

Technical Field

The utility model relates to a precast concrete component mould technical field, especially a precast element cavity mould, modular mold and precast element.

Background

Concrete prefabricated parts refer to parts which are pre-supported by moulds at the factory, and the moulds used for making such prefabricated parts usually comprise a mould frame which is surrounded by four side moulds. The inside of the mold frame has cavity molds (which may also be referred to as inner molds) for constructing a cavity structure inside the prefabricated part.

During manufacturing, the mold frame is built, the cavity mold is placed into the mold frame, and then concrete is poured into a gap between the mold frame and the cavity mold.

And after the concrete is solidified or semi-solidified, removing the mold frame, and removing the cavity mold from the concrete, namely, leaving a cavity corresponding to the shape of the cavity mold in the prefabricated part.

If the cavity mould needs to be reused, the residual concrete on the surface of the cavity mould needs to be cleaned and put into use again. However, it takes a lot of manufacturing time to remove the cavity mold and clean it, and the cavity mold is combined with the solidified concrete, so that the prefabricated parts are damaged by improper force during removal, such as cracks, and the quality of the prefabricated parts is affected.

Therefore, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated component cavity mould, modular mold and prefabricated component, the prefabricated component cavity mould can stay in the concrete after making, both can play the additional strengthening to concrete structure, removes the flow of demolising the cavity mould simultaneously from, has promoted the efficiency of construction.

In order to achieve the above object, in a first aspect, the embodiments of the present invention provide a prefabricated component cavity mold, including a mold main body, the surface of the mold main body is configured with a concave-convex structure, so that the concrete poured on the surface of the mold main body is solidified and then combined with the concave-convex structure.

Further, the prefabricated part cavity mold comprises a core mold for constructing a cast-in-place cavity in the prefabricated part, and the mold main body is a core mold main body; the concavo-convex structure is configured on the surface of the core mold main body.

The relief structure may take many forms, for example a corrugated surface, or other relief surface, which may be formed by regularly or irregularly shaped projections distributed over the surface of the mould body.

Further, the surface of the core mold body protrudes outward to form a groove for receiving the longitudinal reinforcing bar in the prefabricated part.

Further, the bottom of the longitudinal steel bar is positioned in the groove; or the bottom of the longitudinal steel bar is positioned outside the groove, so that the bottom of the longitudinal steel bar is positioned in the concrete of the prefabricated part after the prefabricated part is manufactured.

Further, if the bottom of the longitudinal steel bar is located outside the groove, the bottom of the longitudinal steel bar is close to the left side wall or the right side wall of the groove.

Further, the prefabricated part cavity mold comprises a tubular mold for constructing a concrete pouring channel in the prefabricated part, the mold body is a tubular mold body, and the concave-convex structure is constructed on the surface of the tubular mold body.

Further, the prefabricated part mould comprises a through long mould for constructing a cavity penetrating from one end of the prefabricated part to the other end of the prefabricated part, the mould main body is a through long mould main body, and the concave-convex structure is constructed on the surface of the through long mould main body.

Further, the concavo-convex structure is a corrugated structure.

In a second aspect, an embodiment of the present invention provides a prefabricated component combination mold, including a mold frame surrounded by a side mold and the prefabricated component cavity mold, the prefabricated component cavity mold is combined with the mold frame to construct a cavity inside the prefabricated component.

In a third aspect, embodiments of the present invention provide a prefabricated component, which is manufactured by the above-mentioned prefabricated component combined mold.

Compared with the prior art, the utility model discloses a following beneficial effect has: the prefabricated component cavity mould surface has concave-convex structure, and after the prefabricated component preparation was accomplished, the concrete can be in the same place with concave-convex structure gomphosis, need not demolish from the concrete part of prefabricated component, has promoted the efficiency of construction, because the prefabricated component cavity mould need not demolish, so has just removed the flow of washing of mould from yet. Meanwhile, the mould dismounting-free can also avoid the concrete damage caused by stress concentration in the dismounting process of the prefabricated part cavity mould. In addition, after the concave-convex structure is combined with the concrete, the effect similar to that of a reinforcing rib can be achieved, and the overall strength of the concrete is increased. Furthermore, the rugged structure can be used to replace a rough surface in a prefabricated part.

Drawings

Fig. 1 is a schematic structural view of a prefabricated part cavity mold according to a first embodiment of the present invention;

fig. 2 is an enlarged structural view of fig. 1 at a position of the core mold main body;

fig. 3 is a schematic structural view of a prefabricated part cavity mold according to a second embodiment of the present invention;

fig. 4 is a schematic structural view of a prefabricated part cavity mold according to a third embodiment of the present invention;

fig. 5 is a schematic structural view of a prefabricated part cavity mold according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural view of a prefabricated part cavity mold according to a fifth embodiment of the present invention;

fig. 7 is a schematic structural view of a prefabricated part cavity mold according to a sixth embodiment of the present invention;

fig. 8 is a schematic structural view of a prefabricated part cavity mold according to a seventh embodiment of the present invention;

fig. 9 is a schematic structural view of a prefabricated part cavity mold according to an eighth embodiment of the present invention;

fig. 10 is a schematic structural view of a prefabricated part cavity mold according to a ninth embodiment of the present invention;

fig. 11 is a schematic structural view of a prefabricated part cavity mold according to a thirteenth embodiment of the present invention;

fig. 12 is a schematic structural view of a combined mold according to an embodiment of the present invention;

fig. 13 is a front view schematically illustrating a prefabricated part manufactured by the combined mold according to an embodiment of the present invention;

FIG. 14 is an enlarged perspective view of the bottom of FIG. 13;

fig. 15 is a schematic bottom view of a cavity at the bottom of a prefabricated member according to a first embodiment of the present invention;

fig. 16 is a schematic bottom view of a cavity at the bottom of a prefabricated member according to a second embodiment of the present invention;

fig. 17 is a schematic bottom view of a cavity at the bottom of a prefabricated member according to a third embodiment of the present invention;

fig. 18 is a schematic bottom view of a bottom cavity of a prefabricated component according to a fourth embodiment of the present invention;

fig. 19 is a schematic bottom view of a bottom cavity of a prefabricated member according to a fifth embodiment of the present invention;

fig. 20 is a schematic bottom view of a bottom cavity of a prefabricated component according to a sixth embodiment of the present invention;

fig. 21 is a schematic bottom view of a bottom cavity of a prefabricated member according to a seventh embodiment of the present invention;

fig. 22 is a schematic bottom view of a bottom cavity of a prefabricated member according to an eighth embodiment of the present invention;

fig. 23 is a schematic bottom view of a bottom cavity of a prefabricated component according to a ninth embodiment of the present invention;

fig. 24 is a schematic structural view of a prefabricated part cavity mold according to a tenth embodiment of the present invention;

fig. 25 is a schematic structural view of a prefabricated part cavity mold according to an eleventh embodiment of the present invention;

fig. 26 is a schematic structural view of a prefabricated part cavity mold according to a twelfth embodiment of the present invention;

fig. 27 is a schematic bottom view of a bottom cavity of a prefabricated component according to a tenth embodiment of the present invention;

fig. 28 is a schematic bottom view of a cavity at the bottom of a prefabricated member according to an eleventh embodiment of the present invention;

fig. 29 is a schematic bottom view of a bottom cavity of a prefabricated member according to a twelfth embodiment of the present invention;

FIG. 30 is a schematic structural view of a preform cavity mold (square type) according to an embodiment;

fig. 31 is a schematic structural view of a prefabricated part cavity mold (square type) according to another embodiment;

FIG. 32 is a schematic structural view of a preform cavity mold (square type) according to another embodiment;

FIG. 33 is a schematic structural view (top view) of a rectangular parallelepiped through-cavity prefabricated element;

FIG. 34 is a schematic view (bottom view) of the structure of a rectangular parallelepiped through-cavity prefabricated element;

FIG. 35 is a schematic structural view (top view, rear dowel) of a rectangular parallelepiped through-shaped cavity prefabricated element;

FIG. 36 is a schematic structural view of a rectangular parallelepiped hollow preform (bottom view, rear dowel);

FIG. 37 is a bottom view of a rectangular parallelepiped full length cavity block;

FIG. 38 is a schematic structural view of a prefabricated component cavity mold (oval type) according to an embodiment;

FIG. 39 is a schematic view of the construction of a prefabricated member having an oblong cavity (bottom view);

FIG. 40 is a schematic structural view of a prefabricated member of an oblong cavity (top view, rear dowel);

FIG. 41 is a schematic structural view of a prefabricated member with an oblong cavity (bottom view, rear dowel);

FIG. 42 is a bottom plan view of an oblong hollow chamber preform member;

FIG. 43 is a schematic view of a preform cavity mold (circular) according to an embodiment;

FIG. 44 is a schematic view of the construction of a prefabricated element having a circular through-length cavity (top view);

FIG. 45 is a schematic structural view of a prefabricated component of a circular through-length cavity (top view, rear dowel);

FIG. 46 is a schematic structural view of a prefabricated member having a circular through-elongated cavity (bottom view, rear dowel);

fig. 47 is a bottom view of a round through-length cavity preform.

In the figure: 1-core mould; 11-core mold main body; 12-a relief structure; 120-ribs; 13-a groove; 2-longitudinal steel bars; 21-ring-shaped steel bars; 22-bottom of longitudinal bars; 23-top of longitudinal rebar; 3-a tubular mold; 31-a tubular mould body; 4-a mold frame; 5-a wedge-shaped module; 6-passing long type mould; 61-relief structure; 7-through long cavity; 100-prefabricated parts; 101-enlarging a pouring area; 102-concrete pouring channel; 103-cast-in-place cavity; 104-concrete.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.

An embodiment of the utility model provides a prefabricated component cavity mould, this cavity mould can be used for forming the cavity of various shapes inside the prefabricated component. When in use, the die frame is combined with the die frame for use. Prefabricated component cavity mould includes the mould main part, and the surface of mould main part has concave-convex structure, forms the concave-convex face at mould main part surface promptly, and these concave-convex structure's surface can combine together with the concrete of pouring, forms the gomphosis, directly stays in prefabricated component's concrete after the mould is pour and is accomplished in, need not demolish, has promoted the efficiency of construction, has removed the flow of washing to the mould from. In addition, after the concave-convex structure is combined with the concrete, the effect similar to that of a reinforcing rib can be achieved, and the overall strength of the concrete is increased. The relief structure may take many forms, for example a corrugated surface, or other relief surface, which may be formed by regularly or irregularly shaped projections distributed over the surface of the mould body.

Referring to fig. 1-2, in some embodiments, the preform cavity mold is a core mold 1 for constructing a cast-in-place cavity at the bottom of the preform. Accordingly, the mold body is a core mold body 11, and the concave-convex structure 12 is formed on the surface of the core mold body. The core mold body 11 is substantially box-shaped. The relief structure can take a variety of forms and in some embodiments the relief structure 12 is a plurality of spaced apart vertical ribs 120 disposed on the surface of the mandrel body 11. Because the core mould main part 11 is box-shaped, every bead 120 encircles the core mould main part and sets up, can all produce the combination with the concrete on each face of core mould main part 11 like this, promoted the bonding strength between core mould main part 11 and the concrete. The shape of the rib 120 can be varied, and in some embodiments, the rib 120 is flat, forming a vertical plane perpendicular to the surface of the mandrel body 11. Since the prefabricated units are finally assembled in a vertical state, the vertical surface can be supported by concrete in the vertical direction, and can be more tightly combined in the prefabricated units.

In some embodiments, the surface of the core mold body 11 protrudes outward to form a groove 13 for receiving a longitudinal reinforcing bar in the prefabricated part (as shown in fig. 1 to 7). When the longitudinal bars 2 in the prefabricated parts are assembled with the molds, the bottoms of the longitudinal bars may be positioned in the grooves 13 (see fig. 1 to 4), or the bottoms of the longitudinal bars 2 may be positioned outside the grooves 13 (see fig. 5 to 7), so that the bottoms of the longitudinal bars 2 are positioned in the concrete of the prefabricated parts after the prefabricated parts are manufactured. If the bottom of the longitudinal steel bar 2 is located on the outer side of the groove 13, the bottom of the longitudinal steel bar 2 is close to the left side wall or the right side wall of the groove 13, so that the positioning of the longitudinal steel bar 2 is facilitated, and the position of the longitudinal steel bar 2 can be more stable when the prefabricated part mold is poured, more importantly, one side of the concrete on the outer side of the groove 13 is wrapped with the longitudinal steel bar 2, the other side of the concrete is combined with the concave-convex structure on the side wall of the groove 13, and the combination strength of the prefabricated cavity mold in the concrete is further improved. Of course, in other embodiments, the surface of the mandrel body 11 may not be provided with grooves (as shown in fig. 8-10).

Referring to fig. 11, the prefabricated member mold may also be a tubular mold 3, and the tubular mold 3 is used to construct a concrete pouring passage in the prefabricated member, which is communicated with the cast-in-place cavity at the bottom of the prefabricated member, so that the tubular mold 3 is coupled with the core mold 1 above the core mold 1. When the tubular mold 3 is used, correspondingly, the mold body is a tubular mold body 31, and the concave-convex structure is configured on the surface of the tubular mold body 31, and in some embodiments, the concave-convex structure 12 may also be a plurality of ribs arranged at intervals around the tubular mold body. After the concrete pouring is completed, the tubular mold 3 is left in the prefabricated member, forming a concrete pouring passage.

In conjunction with fig. 12, the embodiment of the present invention further provides a combined mold, which includes a mold frame and the prefabricated component cavity mold described above. The mould frame 4 is enclosed by four side moulds and is substantially rectangular. In this embodiment, the prefabricated part cavity mold includes the core mold and the tubular mold as described above, and the upper portion of the core mold body 11 is connected to the tubular mold body 31. The top of the tubular mould body 31 is also connected to a wedge-shaped module 5, which wedge-shaped module 5 is used to form an enlarged casting area.

When the prefabricated member is used, the mold frame 4 is enclosed, then the wedge-shaped modules 5, the tubular mold body 31 and the core mold body 11 are assembled in the mold frame 4, and the longitudinal steel bars and the transverse steel bars of the prefabricated member are also arranged at proper positions.

Next, concrete is poured into the mold frame 4 and the void of the prefabricated part cavity mold therein. After the concrete is solidified or semi-solidified, the side forms of the mold frame 4 are removed, and the core mold and the tubular mold are left in the concrete prefabricated member.

With reference to fig. 13-14, the prefabricated member 100 is formed by sequentially arranging, from top to bottom, an enlarged casting area 101, a concrete pouring channel 102 and a cast-in-place cavity 103, which are communicated with each other.

As described above, the longitudinal reinforcement of the prefabricated part and the core mold may have various positional relationships, and the position of the longitudinal reinforcement with respect to the cast-in-place cavity may be different when the prefabricated part is manufactured in different positional relationships. In the embodiments of the present invention, several are exemplarily given as references.

< longitudinal reinforcement in groove >

Referring to fig. 1-4 in conjunction with fig. 15-17, in the present embodiment, the longitudinal reinforcing bars 2 include two bars arranged in front and back, and the bottom is closed by the ring-shaped reinforcing bars 21. The front and rear longitudinal reinforcing bars 2 are respectively positioned in the grooves 13 of the core mold body 11. At this time, after the core mold body 11 forms the cast-in-place cavity 103 in the prefabricated member, the bottom 22 of the longitudinal reinforcing steel bar is positioned in the cast-in-place cavity 103. Since the longitudinal reinforcement 2 is inclined towards the inside when it is arranged, the top 23 of the longitudinal reinforcement is located inside the bottom 22 of the longitudinal reinforcement when viewed from the bottom of the prefabricated element, and during the assembly of the upper and lower prefabricated elements, the top of the lower longitudinal reinforcement extends into the cast-in-place cavity at the bottom of the upper prefabricated element.

It should be noted that the width of the core mold body 11 may be various, and accordingly, the number of the grooves 13 may be various, and the present embodiment shows the case where 3 grooves (fig. 15), 2 grooves (fig. 16), and 1 groove (fig. 17) are provided on the core mold body, respectively.

< longitudinal reinforcement outside groove >

Referring to fig. 5-7 in conjunction with fig. 18-20, in the present embodiment, the longitudinal reinforcing bars 2 include two bars arranged in front and behind each other, and the bottom is closed by the ring-shaped reinforcing bars 21. The front and rear longitudinal reinforcing bars 2 are respectively positioned outside the grooves 13 of the core mold body 11. At this time, after the core mold body 11 forms the cast-in-place cavity 103 in the prefabricated member, the bottom of the longitudinal reinforcing bar 2 is positioned in the concrete 104. Since the longitudinal reinforcement 2 is inclined towards the inside when in arrangement, the top 23 of the longitudinal reinforcement is positioned at the inside of the bottom 22 of the longitudinal reinforcement when viewed from the bottom, and the top of the longitudinal reinforcement of the lower layer extends into the cast-in-place cavity at the bottom of the prefabricated part of the upper layer during the assembly process of the prefabricated parts of the upper layer and the lower layer.

It should be noted that the width of the core mold body 11 may be various, and accordingly, the number of the grooves 13 may be various, and the present embodiment shows the case where 3 grooves (fig. 18), 2 grooves (fig. 19), and 1 groove (fig. 20) are provided on the core mold body, respectively.

< longitudinal reinforcing bars located outside of core mold without forming grooves on core mold main body >

Referring to fig. 8-10 in conjunction with fig. 21-23, in this embodiment, the core mold body 11 is not formed with a groove. The longitudinal reinforcing bars 2 comprise two bars arranged one behind the other, the bottom of which is closed by a ring-shaped reinforcing bar 21. The front and rear longitudinal reinforcing bars are respectively positioned at the outer side of the core mold main body 11. At this time, after the core mold body 11 forms the cast-in-place cavity 103 in the prefabricated member, the bottom of the longitudinal reinforcing bar 2 is positioned in the concrete 104. Because the longitudinal steel bars incline towards the inner side when being arranged, the top parts 23 of the longitudinal steel bars are positioned at the inner sides of the bottom parts 22 of the longitudinal steel bars from the bottom view, and the top parts of the lower layers of longitudinal steel bars extend into cast-in-situ cavities at the bottom parts of the upper layers of prefabricated parts during the assembly process of the upper layers of prefabricated parts and the lower layers of prefabricated parts.

It should be noted that the width of the core mold main body 11 may be various, and three kinds are given in this embodiment (see fig. 21 to 23).

< longitudinal reinforcing bars located inside the core mold without forming grooves on the core mold body >

Referring to fig. 24-26 in conjunction with fig. 27-29, in this embodiment, the mandrel body 11 does not have a groove formed therein. The longitudinal reinforcing bars 2 comprise two bars arranged one behind the other, the bottom of which is closed by a ring-shaped reinforcing bar 21. The front and rear longitudinal reinforcing bars are respectively positioned at the inner side of the core mold main body 11. At this time, after the core mold body 11 forms the cast-in-place cavity 103 in the prefabricated member, the bottom of the longitudinal reinforcing bar 2 is positioned in the cast-in-place cavity 103. Because the longitudinal steel bars incline towards the inner side when being arranged, the top parts 23 of the longitudinal steel bars are positioned at the inner sides of the bottom parts 22 of the longitudinal steel bars from the bottom view, and the top parts of the lower layers of longitudinal steel bars extend into cast-in-situ cavities at the bottom parts of the upper layers of prefabricated parts during the assembly process of the upper layers of prefabricated parts and the lower layers of prefabricated parts.

It should be noted that the width of the core mold main body 11 may be various, and three kinds are given in this embodiment (see fig. 27 to 29).

< hollow mold, Square >

As shown in fig. 30 to 32, the present embodiment provides a through long die 6, the main body of the through long die 6 has a rectangular parallelepiped shape, and the longitudinal reinforcing bars 2 are disposed on the outer side of the through long die 6 (the number of the longitudinal reinforcing bars is flexibly adjusted according to the width of the through long die 6). The through-going mould 6 is used to construct a through-going cavity 7 extending from one end of the prefabricated element to the other end of the prefabricated element, the prefabricated element being formed as shown in fig. 33-37. A relief structure 61, preferably corrugated, is formed on the surface of the body of the through mould 6. The through cavity 7 is cast in situ with concrete directly therein. After the concrete pouring is completed, the entire through-length die 6 is left directly in the prefabricated member. The through long cavity 7 is equivalent to a combination form of replacing a concrete pouring channel and a bottom cast-in-place cavity, and is directly replaced by a cavity penetrating through a prefabricated part, so that the form removal is avoided on the whole.

Furthermore, the longitudinal rebars 2 are all prefabricated within the concrete 104.

In addition, the connecting longitudinal reinforcement in the prefabricated units may take the form of rear studs (see fig. 35-36).

< elongated mold, oval shape >

As shown in fig. 38, the present embodiment provides a through long die 6, the main body of the through long die 6 is oval, and the longitudinal reinforcing bars 2 are arranged outside the through long die 6. The elongated mould 6 is used to construct an elongated cavity 7 extending through the prefabricated element from one end to the other end of the prefabricated element, the prefabricated element being formed as shown in fig. 39-42. A relief structure 61, preferably corrugated, is formed on the surface of the body of the through mould 6. The through long cavity 7 is equivalent to a combination form of replacing a concrete pouring channel and a bottom cast-in-place cavity, and is directly replaced by a cavity penetrating through a prefabricated part, so that the form removal is avoided on the whole.

In addition, the connecting longitudinal reinforcing bars in the prefabricated units may take the form of rear reinforcing bars (see fig. 40-41).

< elongated die, round >

As shown in fig. 43, the present embodiment provides a through long die 6, the main body of the through long die 6 is circular, and the longitudinal bars 2 are disposed outside the through long die 6. The through-going mould 6 is used to construct a through-going cavity 7 extending from one end of the prefabricated element to the other end of the prefabricated element, the prefabricated element being formed as shown in fig. 44-47. A relief structure 61, preferably corrugated, is formed on the surface of the body of the through mould 6. The through long cavity 7 is equivalent to a combination form of replacing a concrete pouring channel and a bottom cast-in-place cavity, and is directly replaced by a cavity penetrating through a prefabricated part, so that the form removal is avoided on the whole.

In addition, the connecting longitudinal reinforcement in the prefabricated units may take the form of rear studs (see fig. 45-46).

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The prefabricated part cavity mold is characterized by comprising a mold main body, wherein a concave-convex structure is formed on the surface of the mold main body, so that concrete poured on the surface of the mold main body is combined with the concave-convex structure after being solidified.

2. The preform cavity mold of claim 1, wherein the concavo-convex structure is a corrugated structure.

3. The precast member cavity mold according to claim 1, comprising a core mold for constructing a cast-in-place cavity in a precast member, the mold body being a core mold body; the concavo-convex structure is configured on the surface of the core mold main body.

4. The precast member cavity mold according to claim 3, wherein the surface of the core mold body is protruded to the outside to form a groove for receiving a longitudinal reinforcing bar in the precast member.

5. The precast member cavity mold according to claim 4, wherein the bottom of the longitudinal reinforcing bar is located in the groove; or the bottom of the longitudinal steel bar is positioned outside the groove, so that the bottom of the longitudinal steel bar is positioned in the concrete of the prefabricated part after the prefabricated part is manufactured.

6. The prefabricated part cavity mold of claim 5, wherein if the bottom of the longitudinal reinforcing bar is located outside the groove, the bottom of the longitudinal reinforcing bar is adjacent to the left or right sidewall of the groove.

7. The precast member cavity mold according to claim 1, comprising a tubular mold for constructing a concrete pouring passage in a precast member, the mold body being a tubular mold body, the concavo-convex structure being configured at a surface of the tubular mold body.

8. The preform cavity mold according to claim 1, wherein the preform mold comprises a through-length type mold for constructing a cavity passing through from one end to the other end of the preform, the mold body is a through-length type mold body, and the concavo-convex structure is configured on a surface of the through-length type mold body.

9. The preform cavity mold of claim 8, wherein the concavo-convex structure is a corrugated structure.

10. A prefabricated component combination mould comprising a mould frame enclosed by side moulds and a prefabricated component cavity mould according to any one of claims 1 to 9, said prefabricated component cavity mould being combined with said mould frame to construct a cavity within a prefabricated component.

11. A prefabricated part produced by the prefabricated part combination mold according to claim 10.