Concrete mold

Abstract

The invention belongs to the technical field of concrete molds, and particularly relates to a concrete mold which comprises a bottom mold plate, a first outer mold plate and a second outer mold plate are arranged on the upper surface of the bottom mold plate, a fixed cross beam is connected to the top of the first outer mold plate and the top of the second outer mold plate, and an inner mold plate is connected to the bottom side of the fixed cross beam. A first mold hole is formed in the surface of the first outer mold plate, a second mold hole is formed in the surface of the inner mold plate, a transverse plate is connected to the inner wall of the inner mold plate, and a first threaded pipe penetrates through the interior of the transverse plate. According to the device, an embedded mold cylinder is inserted into a first mold hole and a second mold hole, when the embedded mold cylinder drives a threaded rod to move to a pipe opening of a first threaded pipe through a longitudinal plate and a first bearing, the threaded rod can rotate and move to the interior of the first threaded pipe, in this way, the position of the embedded mold cylinder can be fixed, and therefore reserved holes can be formed; the embedded mold cylinder is low in production process requirement and can adapt to pipe wall thicknesses of different concrete prefabricated pipelines.

Description

Technical Field

[0001] The invention belongs to the field of concrete moulds, and in particular relates to a concrete mould. Background Art

[0002] Concrete mold is a tool made of specific materials and used to shape concrete products. It can ensure that concrete products have uniform size, shape and performance. It is an indispensable tool in modern construction. The material selection of concrete mold is very important, which directly affects the service life of the mold and the quality of the product. Common mold materials include wood, steel, plastic and silicone, etc. The concrete prefabricated pipe mold is a tool used to manufacture concrete prefabricated pipes. It is usually made of high-strength steel or special alloy materials, with precise size, excellent wear resistance and reusability. The concrete prefabricated pipe mold includes a bottom mold, an outer mold and an inner mold.

[0003] At present, the process of setting reserved holes in the concrete prefabricated pipe mold first requires the preparation of the reserved hole steel mold, and then the reserved hole steel mold needs to be accurately installed between the inner mold and the outer mold. This link is crucial because it is directly related to the subsequent pouring effect of the concrete slurry. During the installation process, it is necessary to ensure that the reserved hole steel mold is tightly fitted with the inner mold and the outer mold to prevent leakage when pouring concrete slurry. Leakage will not only cause the shape and size of the reserved hole to deviate from the design requirements, but may also affect the structural strength and durability of the entire concrete prefabricated pipe.

[0004] However, achieving this tight fit is not easy. The shape design of the reserved hole steel mold must be very precise, taking into account both the matching degree with the inner mold and the fit with the outer mold. This high requirement brings great difficulties to the production of the reserved hole steel mold. During the production process, high-precision processing equipment and processes are required to ensure that every size and shape of the mold meets the design requirements. At the same time, the mold also needs to be strictly inspected and tested to ensure that it can meet the requirements in actual use. Summary of the invention

[0005] The purpose of the present invention is to provide a concrete mold, aiming to solve the problem that the reserved hole processing method in the prior art does have great limitations in actual use. It not only has extremely high requirements on the appearance of the reserved hole steel mold, but also increases the production cost and processing difficulty.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a concrete mold, comprising a bottom template, wherein the upper surface of the bottom template is respectively provided with a first outer template and a second outer template, the tops of the first outer template and the second outer template are connected with a fixed crossbeam, the bottom side of the fixed crossbeam is connected with an inner template, the surface of the first outer template is provided with a first mold hole, the surface of the inner template is provided with a second mold hole, the inner wall of the inner template is connected with a cross plate, the interior of the cross plate is penetrated by a first threaded tube, the interior of the first mold hole and the second mold hole is penetrated by an embedded mold cylinder, the inner wall of the embedded mold cylinder is connected with a longitudinal plate, the interior of the longitudinal plate is connected with a first bearing, and the interior of the first bearing is penetrated by a threaded rod.

[0007] As a preferred concrete mold of the present invention, the longitudinal section size of the first mold hole is the same as that of the second mold hole, and the embedded mold cylinder matches the size of the first mold hole and the second mold hole respectively.

[0008] As a preferred embodiment of the concrete mold of the present invention, the threaded rod forms a rotating structure through the first bearing and the longitudinal plate, and the threaded rod and the first threaded tube are threadedly connected.

[0009] As a preferred concrete mold of the present invention, the side surface of the first outer formwork is connected to a first bite block, the side surface of the second outer formwork is connected to a second bite block, the side surface of the first outer formwork is provided with a first fixing hole, the side surface of the second outer formwork is provided with a second fixing hole, the first fixing hole and the second fixing hole are penetrated by first fixing bolts, and the surface of the first fixing bolt is sleeved with a first nut.

[0010] As a preferred embodiment of the concrete mold of the present invention, the side surfaces of the first bite block and the second bite block in contact are both arranged as inclined surfaces, and the first bite block and the second bite block form a snap-fit ​​structure.

[0011] As a preferred embodiment of the concrete mold of the present invention, the first fixing bolt and the first nut are threadedly connected.

[0012] As a preferred concrete mold of the present invention, the bottom sides of the first outer formwork and the second outer formwork are respectively connected with first fixing ears, the upper surface of the bottom formwork is connected with a second fixing ear, the first fixing ear and the second fixing ear are penetrated by second fixing bolts, and the surface of the second fixing bolt is sleeved with a second nut.

[0013] As a preferred embodiment of the concrete mold of the present invention, the positions of the first fixing ears correspond to the second fixing ears one by one, and the second fixing bolt and the second nut are threadedly connected.

[0014] As a preferred concrete mold of the present invention, a strip groove is opened on the surface of the bottom template, and two groups of hooks are symmetrically arranged inside the strip groove, and the insides of the two groups of hooks are respectively penetrated by second threaded tubes, and the insides of the two second threaded tubes are penetrated by bidirectional screw rods, and a second bearing is connected between the bidirectional screw rod and the bottom template, and the bidirectional screw rod is connected to the output end of the drive motor, and the drive motor is installed on the side surface of the bottom template.

[0015] As a preferred concrete mold of the present invention, the pull hook is slidably connected to the bottom template through the strip groove, the bidirectional screw is threadedly connected to the second threaded tube, and the bidirectional screw is rotated through the second bearing and the bottom template.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention first inserts the embedded mold barrel into the first mold hole and the second mold hole. When the embedded mold barrel drives the threaded rod to move to the pipe mouth of the first threaded pipe through the longitudinal plate and the first bearing, the threaded rod can be rotated at this time, and the threaded rod can be rotated to move to the inside of the first threaded pipe, so that the position of the embedded mold barrel can be fixed, thereby realizing the setting of the reserved hole. The production process requirements of the embedded mold barrel are low, and it can adapt to the pipe wall thickness of different prefabricated concrete pipes, and has strong applicability. According to the present invention, when the second outer template is hoisted to one side of the first outer template, the first bite block and the second bite block can be engaged with each other. During the engagement process between the first bite block and the second bite block, the gap between the second outer template and the first outer template can be reduced by the provided inclined surface. When the first fixing hole and the second fixing hole are aligned, the first fixing bolt passes through the first fixing hole and the second fixing hole and is threadedly connected with the first nut. In this way, the assembly of the first outer template and the second outer template can be completed. In this way, the assembly speed of the first outer template and the second outer template can be improved, and the manual pressure can be reduced. According to the present invention, after the outer template and the inner template are installed on the surface of the bottom template, the driving motor can drive the bidirectional screw to rotate when it is running, and the rotation of the bidirectional screw can drive the second threaded tube to move laterally, and the lateral movement of the second threaded tube can drive the hook to move laterally. When the hook moves laterally to the inner template, the hook can provide supporting force for the inner template to avoid the inner template from being offset due to the high pressure on the bottom side of the mold after the concrete slurry is injected, thereby improving the quality of the finished concrete prefabricated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the embedded mold barrel connection structure of the present invention; Figure 3 It is an exploded view of the embedded mold barrel connection structure of the present invention; Figure 4 It is a schematic diagram of the first outer template structure of the present invention; Figure 5 It is a schematic diagram of the inner template structure of the present invention; Figure 6 It is an exploded view of the outer template connection structure of the present invention; Figure 7 It is a schematic diagram of the outer template connection structure of the present invention; Figure 8 It is a schematic diagram of the bottom template structure of the present invention; Fig. 9 It is a cross-sectional view of the overall structure of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the connection structure at A in the middle; Fig.11 For the present invention Figure 1 Schematic diagram of the connection structure at B in the middle.

[0018] In the figure: 1. bottom template; 2. first outer template; 3. second outer template; 4. fixed crossbeam; 5. inner template; 6. first die hole; 7. second die hole; 8. horizontal plate; 9. first threaded tube; 10. embedded die cylinder; 11. longitudinal plate; 12. first bearing; 13. threaded rod; 14. first bite block; 15. second bite block; 16. first fixing hole; 17. second fixing hole; 18. first fixing bolt; 19. first nut; 20. first fixing ear; 21. second fixing ear; 22. second fixing bolt; 23. second nut; 24. strip groove; 25. hook; 26. second threaded tube; 27. bidirectional screw rod; 28. second bearing; 29. ​​drive motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-11The present invention provides the following technical solutions: a concrete mold, comprising a bottom template 1, wherein the upper surface of the bottom template 1 is respectively provided with a first outer template 2 and a second outer template 3, the tops of the first outer template 2 and the second outer template 3 are connected with a fixed crossbeam 4, the bottom side of the fixed crossbeam 4 is connected with an inner template 5, the surface of the first outer template 2 is provided with a first mold hole 6, the surface of the inner template 5 is provided with a second mold hole 7, the inner wall of the inner template 5 is connected with a cross plate 8, the interior of the cross plate 8 is penetrated by a first threaded tube 9, the interior of the first mold hole 6 and the second mold hole 7 is penetrated by an embedded mold cylinder 10, the inner wall of the embedded mold cylinder 10 is connected with a longitudinal plate 11, the interior of the longitudinal plate 11 is connected with a first bearing 12, and the interior of the first bearing 12 is penetrated by a threaded rod 13.

[0021] First, connect the first outer formwork 2 and the second outer formwork 3 to form a complete outer formwork, then connect the inner formwork 5 to the inside of the outer formwork through the fixed crossbeam 4, so that a chamber can be formed between the inner formwork 5 and the outer formwork, and then inject concrete slurry between the inner formwork 5 and the outer formwork, and wait for the concrete slurry to dry to form a prefabricated concrete pipe.

[0022] It should be noted that the shapes of the first mold hole 6 , the second mold hole 7 and the embedded mold barrel 10 can be adaptively changed according to the shape of the reserved hole.

[0023] Preferably, the longitudinal cross-sectional dimensions of the first die hole 6 and the second die hole 7 are the same, and the embedded die barrel 10 matches the dimensions of the first die hole 6 and the second die hole 7 respectively.

[0024] During specific use, when reserved holes need to be set, the embedded mold barrel 10 can be inserted into the first mold hole 6 and the second mold hole 7. Since the embedded mold barrel 10 matches the size of the two groups of mold holes, the gap between the embedded mold barrel 10 and the second outer mold plate 3 is very small, and the gap between the embedded mold barrel 10 and the inner mold plate 5 is also very small. After spraying the release agent before grouting, it is convenient for demolding and can also play a role in anti-seepage.

[0025] Preferably, the threaded rod 13 forms a rotating structure through the first bearing 12 and the longitudinal plate 11 , and the threaded rod 13 and the first threaded tube 9 are threadedly connected.

[0026] During specific use, when the threaded rod 13 moves to the pipe mouth of the first threaded tube 9 and rotates, it can move toward the inside thereof through the threaded connection relationship. In this way, the position of the embedded mold cylinder 10 can be fixed through the threaded connection between the first threaded tube 9 and the threaded rod 13, which is convenient for subsequent grouting.

[0027] Preferably: the side surface of the first outer template 2 is connected with a first bite block 14, the side surface of the second outer template 3 is connected with a second bite block 15, the side surface of the first outer template 2 is provided with a first fixing hole 16, the side surface of the second outer template 3 is provided with a second fixing hole 17, the first fixing hole 16 and the second fixing hole 17 are penetrated by a first fixing bolt 18, and the surface of the first fixing bolt 18 is sleeved with a first nut 19.

[0028] Preferably, the side surfaces of the first bite block 14 and the second bite block 15 that are in contact are both arranged as inclined surfaces, and the first bite block 14 and the second bite block 15 form a snap-fit ​​structure.

[0029] During specific use, through the inclined surfaces set by the first bite block 14 and the second bite block 15, the second bite block 15 will drive the second outer template 3 to gradually move toward the direction close to the first outer template 2 during the descending process of the inclined surface of the first bite block 14, so that the gap between the first outer template 2 and the second outer template 3 can be reduced.

[0030] Preferably, the first fixing bolt 18 and the first nut 19 are threadedly connected.

[0031] During specific use, the positions of the first outer template 2 and the second outer template 3 can be fixed by threaded connection between the first fixing bolt 18 and the first nut 19 .

[0032] Preferably: the bottom sides of the first outer template 2 and the second outer template 3 are respectively connected with the first fixing ear 20, the upper surface of the bottom template 1 is connected with the second fixing ear 21, the insides of the first fixing ear 20 and the second fixing ear 21 are penetrated by the second fixing bolt 22, and the surface of the second fixing bolt 22 is sleeved with the second nut 23.

[0033] Preferably, the positions of the first fixing ears 20 and the second fixing ears 21 correspond one to one, and the second fixing bolt 22 and the second nut 23 are threadedly connected.

[0034] During specific use, the first fixing ear 20 and the second fixing ear 21 can be connected by threaded connection between the second fixing bolt 22 and the second nut 23 , so that the outer template can be fixedly connected to the surface of the bottom template 1 .

[0035] Preferably: a strip groove 24 is provided on the surface of the bottom template 1, and two groups of hooks 25 are symmetrically arranged inside the strip groove 24, and the insides of the two groups of hooks 25 are respectively penetrated by a second threaded tube 26, and the insides of the two second threaded tubes 26 are penetrated by a bidirectional screw rod 27, and a second bearing 28 is connected between the bidirectional screw rod 27 and the bottom template 1, and the bidirectional screw rod 27 is connected to the output end of the drive motor 29, and the drive motor 29 is installed on the side surface of the bottom template 1.

[0036] Preferably, the hook 25 is slidably connected to the bottom template 1 through the strip groove 24 , the bidirectional screw rod 27 is threadedly connected to the second threaded tube 26 , and the bidirectional screw rod 27 is rotatably connected to the bottom template 1 through the second bearing 28 .

[0037] During specific use, the rotation of the bidirectional screw rod 27 can drive the two second threaded tubes 26 to move toward the inner wall of the inner template 5 through the single connection relationship. The movement of the second threaded tube 26 can drive the hook 25 to slide inside the strip groove 24. In this way, the inner template 5 can be fixed by the hook 25 to avoid the inner template 5 from tilting due to the high pressure at the bottom of the mold after grouting.

[0038] The working principle of the present invention when used specifically is as follows: firstly, the first outer template 2 is hoisted to the surface of the bottom template 1, and the first fixing ears 20 and the second fixing ears 21 at corresponding positions are aligned, and then the second fixing bolts 22 are passed through the first fixing ears 20 and the second fixing ears 21, and then the position of the first outer template 2 is fixed by threading the second fixing bolts 22 with the second fixing bolts 22; Then, the second outer template 3 is hoisted to one side of the first outer template 2 and engaged with the second engagement block 14 and 15. When the first fixing hole 16 and the second fixing hole 17 are aligned, the first fixing bolt 18 passes through the first fixing hole 16 and the second fixing hole 17 and is threadedly connected with the first nut 19. In this way, the assembly of the first outer template 2 and the second outer template 3 is completed. Then, the second outer template 3 is installed on the surface of the bottom template 1 through the first fixing ear 20 and the second fixing ear 21 in the same way. Next, the inner formwork 5 is installed inside the outer formwork by fixing the crossbeam 4, and then the drive motor 29 can be operated. When the drive motor 29 is running, it can drive the bidirectional screw rod 27 to rotate. The rotation of the bidirectional screw rod 27 can drive the second threaded tube 26 to move laterally. The lateral movement of the second threaded tube 26 can drive the hook 25 to move laterally. When the hook 25 moves laterally to the inner formwork 5, the hook 25 can provide support force for the inner formwork 5 to avoid the displacement of the inner formwork 5 caused by the high pressure on the bottom side of the mold after the concrete slurry is injected.

[0039] Next, the embedded mold barrel 10 is inserted into the first mold hole 6 and the second mold hole 7. When the embedded mold barrel 10 drives the threaded rod 13 to move to the pipe mouth of the first threaded tube 9 through the longitudinal plate 11 and the first bearing 12, the threaded rod 13 can be rotated at this time, and the threaded rod 13 can be rotated to move to the inside of the first threaded tube 9, so that the position of the embedded mold barrel 10 can be fixed, so that the setting of the reserved hole can be realized; Finally, a release agent may be sprayed on the inner wall between the outer formwork and the inner formwork 5 , and then concrete slurry may be injected between the outer formwork and the inner formwork 5 . After the concrete slurry is dried, the mold may be removed, thereby obtaining a prefabricated concrete pipe.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete mold, comprising a bottom template (1), wherein the upper surface of the bottom template (1) is provided with a first outer template (2) and a second outer template (3), the tops of the first outer template (2) and the second outer template (3) are connected with a fixed crossbeam (4), and the bottom side of the fixed crossbeam (4) is connected with an inner template (5), characterized in that: A first die hole (6) is formed on the surface of the first outer die plate (2), a second die hole (7) is formed on the surface of the inner die plate (5), a transverse plate (8) is connected to the inner wall of the inner die plate (5), a first threaded tube (9) is passed through the interior of the transverse plate (8), an embedded die barrel (10) is passed through the interior of the first die hole (6) and the second die hole (7), a longitudinal plate (11) is connected to the inner wall of the embedded die barrel (10), a first bearing (12) is connected to the interior of the longitudinal plate (11), and a threaded rod (13) is passed through the interior of the first bearing (12).

2. A concrete mold according to claim 1, characterized in that: The longitudinal cross-sectional dimensions of the first die hole (6) and the second die hole (7) are the same, and the embedded die barrel (10) matches the dimensions of the first die hole (6) and the second die hole (7), respectively.

3. A concrete mold according to claim 1, characterized in that: The threaded rod (13) forms a rotating structure through the first bearing (12) and the longitudinal plate (11), and the threaded rod (13) and the first threaded tube (9) are threadedly connected.

4. A concrete mold according to claim 1, characterized in that: The side surface of the first outer template (2) is connected to a first engaging block (14), the side surface of the second outer template (3) is connected to a second engaging block (15), the side surface of the first outer template (2) is provided with a first fixing hole (16), the side surface of the second outer template (3) is provided with a second fixing hole (17), the first fixing hole (16) and the second fixing hole (17) are penetrated by first fixing bolts (18), and the surface of the first fixing bolt (18) is sleeved with a first nut (19).

5. A concrete mold according to claim 4, characterized in that: The side surfaces of the first bite block (14) and the second bite block (15) in contact are both arranged as inclined surfaces, and the first bite block (14) and the second bite block (15) form a snap-fit ​​structure.

6. A concrete mold according to claim 5, characterized in that: The first fixing bolt (18) and the first nut (19) are threadedly connected.

7. A concrete mold according to claim 1, characterized in that: The bottom sides of the first outer template (2) and the second outer template (3) are respectively connected to first fixing ears (20), the upper surface of the bottom template (1) is connected to a second fixing ear (21), the first fixing ear (20) and the second fixing ear (21) are penetrated by second fixing bolts (22), and the surface of the second fixing bolt (22) is sleeved with a second nut (23).

8. A concrete mold according to claim 7, characterized in that: The positions of the first fixing ears (20) and the second fixing ears (21) correspond one to one, and the second fixing bolt (22) and the second nut (23) are threadedly connected.

9. A concrete mold according to claim 7, characterized in that: The surface of the bottom template (1) is provided with a strip groove (24), and two groups of hooks (25) are symmetrically arranged inside the strip groove (24). The insides of the two groups of hooks (25) are respectively penetrated by a second threaded tube (26), and the insides of the two second threaded tubes (26) are penetrated by a bidirectional screw rod (27). A second bearing (28) is connected between the bidirectional screw rod (27) and the bottom template (1), and the bidirectional screw rod (27) is connected to the output end of a drive motor (29), and the drive motor (29) is installed on the side surface of the bottom template (1).

10. A concrete mold according to claim 9, characterized in that: The pull hook (25) is slidably connected to the bottom template (1) via the strip groove (24), the bidirectional screw rod (27) is threadedly connected to the second threaded tube (26), and the bidirectional screw rod (27) is rotatably connected to the bottom template (1) via the second bearing (28).

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