Concrete ditch mold

By designing a concrete ditch mold including a support mold frame, an inner formwork, an upper formwork, a bottom formwork and an extended folding outer form, the problems of insufficient rigidity, waste of materials and inefficiency in the existing construction process are solved, and flexible ditch construction and efficient material utilization are achieved.

CN222631999UActive Publication Date: 2025-03-18杨金华
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Patent Information

Application Number
CN202421199432.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-03-18
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The existing concrete ditch construction process has problems such as insufficient rigidity, waste of materials, complex and inflexible processes. Especially in the construction of ditches with different cross-sectional sizes, the formwork needs to be replaced frequently, resulting in inefficiency.

Method used

A concrete ditch mold is designed, including a support mold frame, inner formwork, upper formwork, bottom formwork and extended folding outer formwork. Through the hinge and folding structure, the formwork can be flexibly spliced ​​and adjusted, and adapted to ditch construction of different depths and widths.

Benefits of technology

The structure of the template is simple and reasonable, and can flexibly adjust the depth and width of the grooves, reduce material waste, improve construction efficiency, and overcome the problems of insufficient rigidity in traditional processes and frequent template replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a concrete ditch mould which comprises a supporting mould frame, two inner mould plates, two upper mould plates, two bottom mould plates and two groups of extending folding outer mould plates, two outer mould plates vertically extending along the front-back direction are arranged in the supporting mould frame in a left-right spaced mode, and the two inner mould plates are respectively vertically arranged between the two outer mould plates along the front-back direction. The two inner templates are arranged in a left-right spaced mode, the two upper molds are hinged to the upper ends of the two inner templates respectively and can be turned outwards to be horizontal and protrude out of the outer sides of the upper ends of the corresponding inner templates or turned inwards to be close to each other, and the two sets of extending and folding outer molds are installed at the lower ends of the two inner templates respectively and can be folded on the inner sides of the lower ends of the inner templates. The two extending and folding outer molds are arranged at the lower ends of the two inner mold plates or are flattened to be vertical and connected to the lower ends of the corresponding inner mold plates, and the two bottom molds are detachably arranged at the lower ends of the two inner mold plates respectively or detachably arranged at the lower ends of the two groups of unfolded extending and folding outer molds. The furrow opener has the advantages of being simple and reasonable in structural design and capable of flexibly adjusting the furrow opening depth.
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Description

Technical Field

[0001] The utility model relates to the technical field of ditch construction, in particular to a concrete ditch mould. Background Art

[0002] There are two existing processes for the construction of concrete ditches. One is the traditional process of pouring the ditch in two layers. First, the trench bottom formwork is installed and poured after the excavation is completed. Then, the trench bottom formwork is placed again, holes are drilled and reinforcement is planted, and the wall formwork on both sides is installed, concrete is poured, and the formwork is removed. This cycle is repeated. The disadvantage is that the wall and the bottom plate are poured in two layers, which weakens the overall rigidity. Since the wall formwork is erected on the bottom plate, the concrete of the bottom plate will exceed the designed width, and part of the concrete needs to be wasted. Secondary placement, manual drilling and reinforcement are performed on the concrete bottom plate, which wastes labor and materials as well as time. The other is the slipform process, which fixes the formwork on a moving machine and continuously pours concrete as the machine moves. The advantages are fewer formworks and faster speed, but the fast speed is also a disadvantage, because it is limited by the ratio of the height to the width of the wall. When the height-to-width ratio exceeds 2.5, the poured wall will collapse, which means that it can only construct a single type of ditch in the highway market, namely 40×40 wall width 0.25 meters high 0.6 meters; secondly, like the traditional process, for ditches of different cross-sectional sizes, the corresponding formwork needs to be replaced.

[0003] Based on this, it is necessary to develop a template that can overcome the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a concrete water ditch mold, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A concrete ditch mold comprises a supporting mold frame, two inner molds, two upper molds, two bottom molds and two groups of extended folding outer molds. Two outer molds extending vertically in the front-back direction are arranged at intervals on the left and right in the supporting mold frame. The two inner molds are respectively arranged vertically between the two outer molds in the front-back direction and are spaced apart on the left and right. The two upper molds are respectively hingedly mounted on the upper ends of the two inner molds and can be flipped outwards to be horizontal and protrude from the outer sides of the upper ends of the corresponding inner molds, or flipped inwards to be close together. The two groups of extended folding outer molds are respectively mounted on the lower ends of the two inner molds and can be folded inside the lower ends of the inner molds, or flattened to be vertical and connected to the lower ends of the corresponding inner molds. The two bottom molds are respectively detachably mounted on the lower ends of the two inner molds, or detachably mounted on the lower ends of the two groups of extended folding outer molds after unfolding. A concrete pouring cavity is formed between the outer molds, the upper mold and the two inner molds.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the above-mentioned supporting formwork includes two door-shaped beams, the two above-mentioned beams are distributed at intervals, and the two above-mentioned outer formworks are respectively attached to the inner sides of the vertical sections at both ends of the two above-mentioned beams, and are detachably connected to the vertical sections.

[0009] Furthermore, the beam body includes two vertical beams and a horizontal beam. The two vertical beams are parallel and spaced apart. The horizontal beam is horizontally arranged, and its two ends are detachably connected to the upper ends of the two vertical beams. The two outer formworks are respectively attached to the inner sides of the two vertical beams of the beam body.

[0010] Furthermore, a slot extending vertically to its lower end is provided at the lower end of the vertical beam, a plug plate extending vertically is provided on one side of the lower end of the vertical beam, the lower end of the plug plate is set as a pointed end, a limiting plate connected to the plug plate is provided on the other side of the lower end of the vertical beam, and a pressing portion connected to the plug plate is passed through the slot.

[0011] Furthermore, the upper mold comprises an L-shaped template, and triangular support plates are vertically provided on the upper parts of the front and rear ends of the template respectively, and the lower ends of the horizontal section of the template are hinged to the inner sides of the upper ends of the corresponding inner templates.

[0012] Furthermore, a first rectangular folding shielding plate is hinged on one side where the horizontal sections of the two upper molds are close to each other, and the first folding shielding plate can be flipped upward to be horizontal and spliced ​​together, or flipped downward to be folded; and a second rectangular folding shielding plate is hinged on one side where the horizontal sections of the two upper molds are close to each other, and the second rectangular folding shielding plate can be flipped downward to be horizontal and spliced ​​together, or flipped upward to be folded.

[0013] Furthermore, the bottom mold is an L-shaped plate-like mold body, and the side ends of the two horizontal sections of the bottom molds that are close to each other are respectively hinged with the second folding shielding plates.

[0014] Furthermore, the above-mentioned extended folding outer mold includes a plurality of rectangular extension plates, the side ends of the plurality of the above-mentioned extension plates are hinged in sequence, and can be folded and stored in an egg roll shape toward one side, or flattened, and one end of the above-mentioned extended folding outer mold is hinged to the inner side of the lower end of the corresponding above-mentioned inner mold plate, and can be flattened downward to a vertical shape, or folded and stored toward the inner side of the above-mentioned inner mold plate.

[0015] Furthermore, support members are detachably connected between the two ends of the two inner templates.

[0016] Furthermore, the upper ends of the two inner formworks are detachably connected to the supporting formwork via connecting pieces.

[0017] The beneficial effects of the utility model are: the structural design is simple and reasonable, and the depth of the trenching can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural elevation view of an embodiment of a concrete ditch mold of the utility model;

[0019] Figure 2 It is a structural plan view of the concrete ditch mold of the utility model when in use;

[0020] Figure 3 The utility model is a structural plan view of the concrete ditch mold when it is used in an extended manner.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Support formwork; 2. Inner formwork; 3. Upper formwork; 4. Bottom formwork; 5. Extended folding outer formwork; 10. Outer formwork; 11. Beam body; 31. Formwork; 32. Triangular support plate; 33. First folding shielding plate; 41. Second folding shielding plate; 51. Extension plate; 111. Vertical beam; 112. Horizontal beam; 113. Slot; 114. Insert plate; 116. Pressing part. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] Example: Figure 1 , 2 As shown in Figure 3, the concrete ditch formwork of this embodiment includes a supporting formwork frame 1, two inner formworks 2, two upper formworks 3, two bottom formworks 4 and two groups of extended folding outer formworks 5. The supporting formwork frame 1 is provided with two outer formworks 10 extending vertically in the front-to-back direction at intervals on the left and right. The two inner formworks 2 are respectively arranged vertically between the two outer formworks 10 in the front-to-back direction and are spaced apart on the left and right. The two upper formworks 3 are respectively hingedly mounted on the upper ends of the two inner formworks 2 in a one-to-one correspondence and can be flipped outward to a horizontal position and protrude from the corresponding The outer side of the upper end of the inner template 2, or flipped inward and close together, the two groups of the above-mentioned extended folding outer templates 5 are respectively and one by one installed on the lower ends of the two above-mentioned inner templates 2, and can be folded on the inner side of the lower end of the above-mentioned inner template 2, or flattened into a vertical shape and connected to the lower end of the corresponding above-mentioned inner template 2, the two above-mentioned bottom templates 4 are respectively detachably installed on the lower ends of the two above-mentioned inner templates 2, or detachably installed on the lower ends of the two groups of the above-mentioned extended folding outer templates 5 after unfolding, and a concrete pouring cavity is formed between the above-mentioned outer template 10, the upper template 3 and the two inner templates 2.

[0025] The construction process is as follows:

[0026] First, build a support formwork 1 at the target location, install two outer formworks 10, and then build and splice multiple concrete ditch forms along the length of the ditch (such as Figure 2 As shown), then, two inner templates 2, an upper mold 3 and two bottom molds 4 are installed between every two outer templates 10 (generally, the distances between the two outer templates 10 and the adjacent inner templates 2 are equal, and there is a certain distance between the bottom mold 4 and the bottom of the ditch). Before construction, determine whether the depth needs to be extended according to needs. If necessary, unfold the two sets of extended folded outer molds 5 downward (as shown in FIG. Figure 3 As shown, the bottom mold 4 is spliced ​​at the lower end of the unfolded extended folded outer mold 5. After splicing, concrete is poured in the annulus between the outer mold 10 and the inner mold 2 until it is formed, and the inner mold 2, the bottom mold 4 and the upper mold 3 are removed, and then the outer mold 10 and the supporting mold frame 1 are removed to form a concrete trench. The overall structural design is simple and reasonable, and the depth of the trench can be flexibly adjusted.

[0027] As a preferred embodiment, the supporting formwork 1 comprises two gate-shaped beams 11, the two beams 11 are spaced apart, and the two outer formworks 10 are respectively attached to the inner sides of the vertical sections at both ends of the two beams 11 and are detachably connected to the vertical sections.

[0028] In the above-mentioned implementation scheme, the supporting formwork 1 has a simple and reasonable structural design, and can provide a good installation spacing and stable assembly for the two outer formworks 10. Generally, the backs of the two outer formworks 10 are provided with ribs extending forward and backward, and the two beams 11 are respectively provided with engaging notches corresponding to the ribs, and the ribs are engaged in the engaging notches.

[0029] In this embodiment, the beam body 11 includes two vertical beams 111 and a horizontal beam 112. The two vertical beams 111 are distributed in parallel and at intervals. The horizontal beam 112 is horizontally arranged, and its two ends are detachably connected to the upper ends of the two vertical beams 111 respectively. The two outer formworks 10 are respectively attached to the inner sides of the vertical beams 111 of the two beam bodies 11.

[0030] In this embodiment, the lower end of the vertical beam 111 is provided with a slot 113 extending vertically to the lower end thereof, a vertically extending plug plate 114 is provided on one side of the lower end of the vertical beam 111, the lower end of the plug plate 114 is set as a tip, a limit plate connected to the plug plate 114 is provided on the other side of the lower end of the vertical beam 111, and a pressing portion 116 connected to the plug plate 114 is provided through the slot 113. By operating the pressing portion 116 to press downward on the lower end of the vertical beam 111, the plug plate 114 with a tip can be driven to move downward relative to the vertical beam 111 and inserted into the soil at the bottom of the trench, ensuring good anchoring of the entire support formwork 1.

[0031] Of course, in this embodiment, the insert plate 114 can be adjusted in height by moving up and down relative to the vertical beam 111 to match the construction of grooves of different depths. After adjustment, it needs to be connected and fixed with the pressing part 116 or the insert plate 114 by bolts passing through the slot 113.

[0032] In this embodiment, both ends of the cross beam 112 are provided with expansion grooves extending along the length direction thereof, and the upper end of the vertical beam 111 is overlapped on one side of the corresponding end of the cross beam 112, and is connected by bolts and nuts passing through the expansion groove and the upper end of the vertical beam 111. Tightening the nut can make the upper end of the vertical beam 111 and the end of the cross beam 112 fastened in the expansion groove. After loosening the nut, the vertical beam 111 and the bolt can be operated to move horizontally along the expansion groove, so as to adjust the distance between the two vertical beams 111 to adapt to the construction of grooves of different widths.

[0033] As a preferred embodiment, the upper mold 3 includes an L-shaped template 31, and triangular support plates 32 are vertically provided on the upper parts of the front and rear ends of the template 31, and the lower ends of the horizontal section of the template 31 are hinged to the inner side of the upper end of the corresponding inner template 2.

[0034] In the above embodiment, during the operation of the template 31, half of its horizontal section is inside the inner template 2 and half is outside, and the cavity between the upper template 3, the bottom template 4 and the inner template 2 forms a T-shaped cavity, that is, a groove with a T-shaped cross section is formed in the concrete groove after molding. In addition, when pouring the cavity below the upper template 3, the upper template 3 can be operated to flip and move closer to the upper inner side of the inner template 2 to avoid the space between the upper template 3 and the outer template 10, so that the concrete can smoothly enter the cavity below the upper template 3.

[0035] As a preferred embodiment, the horizontal sections of the two upper molds 3 are respectively hinged on one side where they are close to each other, and the first folding shielding plates 33 can be flipped upward to be horizontal and spliced ​​together, or flipped downward to be folded. The corresponding two bottom molds 4 are respectively hinged on one side where they are close to each other, and the second folding shielding plates 41 can be flipped downward to be horizontal and spliced ​​together, or flipped upward to be folded.

[0036] In the above-mentioned embodiment, before construction, the first folding shielding plate 33 can be operated to flip upward to be flattened, and the side ends of the two flattened first folding shielding plates 33 can be spliced ​​together. At the same time, the second folding shielding plate 41 can be operated to be flattened and the side ends can be spliced ​​together, so as to adjust the distance between the two inner templates 2, that is, adjust the width of the groove after forming. The operation is relatively simple and convenient.

[0037] It should be noted that the first folding shielding plate 33 can be a rectangular plate or a plurality of rectangular plates hinged in sequence. As needed, one, two or more rectangular plates can be flipped upward and flattened (that is, the plate can be fully flattened or partially flattened) to flexibly adjust the spacing between the two inner templates 2. If necessary, the width of a single plate in the first folding shielding plate 33 is consistent with the width of a single plate in the second folding shielding plate 41.

[0038] In this embodiment, a limiting ring can be set at the upper end of each panel surface of the first folding shielding plate 33 after it is flattened. After flattening, the first folding shielding plate 33 can be kept in a flattened state by inserting a rib in the left and right directions through all the limiting rings. The second folding shielding plate 33 can adopt the same flattening and maintaining design.

[0039] In this embodiment, the bottom mold 4 is an L-shaped plate-shaped mold body, and the second folding shielding plates 41 are hingedly connected to the side ends of the two horizontal sections of the bottom molds 4 that are close to each other.

[0040] It should be noted that an additional connecting piece can be used to connect the upper end of the bottom mold 4 and the lower end of the inner mold 2, or the upper end of the bottom mold 4 and the lower end of the flattened first folding baffle 31, and the connecting piece and the upper end of the bottom mold 4 or the lower end of the first folding baffle 31 can be fixed by screws passing through the connecting piece and the upper end of the bottom mold 4 or the lower end of the first folding baffle 31.

[0041] As a preferred embodiment, the extended folding outer mold 5 includes a plurality of rectangular extension plates 51, the side ends of the plurality of extension plates 51 are hinged in sequence, and can be folded and stored in an egg roll shape toward one side, or flattened, and one end of the extended folding outer mold 5 is hinged to the inner side of the lower end of the corresponding inner mold 2, and can be flattened downward to a vertical shape, or folded and stored toward the inner side of the inner mold 2.

[0042] In the above embodiment, before construction, one or more extension plates 51 may be flattened downwards as required, and then the bottom mold 4 may be installed, thereby increasing the depth of the groove after forming.

[0043] It should be noted that: the front and rear ends of the side where the two extension plates 51 are close to each other are respectively provided with a sheet-like hinge part perpendicular to them, and the hinge parts of the two extension plates 51 overlap in the front and rear directions and are hinged at the ends by a pin passing through the two. The two extension plates 51 can be flattened until the side ends are against each other and are in the same plane, or folded.

[0044] In this embodiment, a support member is detachably connected between the two ends of the two inner templates 2. The adjusted inner templates 2 can be fixed and maintained by the support member. The support member can be a rod of a set length, and the two ends of the rod are temporarily connected and fixed to the side ends of the two inner templates 2.

[0045] In this embodiment, the upper ends of the two inner templates 2 are detachably connected to the support formwork 1 through connectors, respectively, to ensure that the inner template 2 can be stably built in the outer template 10 before pouring, which is beneficial to subsequent pouring.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A concrete ditch mold, characterized in that: The invention comprises a supporting formwork frame (1), two inner formwork frames (2), two upper formwork frames (3), two bottom formwork frames (4) and two groups of extended folding outer formwork frames (5). The supporting formwork frame (1) is provided with two outer formwork frames (10) extending vertically in the front-back direction at intervals on the left and right. The two inner formwork frames (2) are respectively arranged vertically between the two outer formwork frames (10) in the front-back direction and are spaced apart on the left and right. The two upper formwork frames (3) are respectively hingedly mounted on the upper ends of the two inner formwork frames (2) in a one-to-one correspondence and can be turned outward to be horizontal and protrude from the corresponding inner formwork frames (2). The two groups of extended folding outer molds (5) are respectively and correspondingly mounted on the lower ends of the two inner molds (2) and can be folded on the inner sides of the lower ends of the inner molds (2), or flattened to be vertically connected to the lower ends of the corresponding inner molds (2). The two bottom molds (4) are respectively and detachably mounted on the lower ends of the two inner molds (2), or detachably mounted on the lower ends of the two groups of extended folding outer molds (5) after unfolding. A concrete pouring cavity is formed between the inner molds (2), the upper mold (3) and the two inner molds (2).

2. A concrete ditch mold according to claim 1, characterized in that: The supporting formwork (1) comprises two door-shaped beams (11), the two beams (11) are spaced apart, and the two outer formworks (10) are respectively attached to the inner sides of the vertical sections at both ends of the two beams (11) and are detachably connected to the vertical sections.

3. A concrete ditch mold according to claim 2, characterized in that: The beam body (11) comprises two vertical beams (111) and a horizontal beam (112), wherein the two vertical beams (111) are arranged in parallel and spaced apart, and the horizontal beam (112) is arranged horizontally, and its two ends are respectively detachably connected to the upper ends of the two vertical beams (111), and the two outer formworks (10) are respectively attached to the inner sides of the two vertical beams (111) of the beam body (11).

4. A concrete ditch mold according to claim 3, characterized in that: The lower end of the vertical beam (111) is provided with a slot (113) extending vertically to the lower end thereof; one side of the lower end of the vertical beam (111) is provided with a plug plate (114) extending vertically; the lower end of the plug plate (114) is set as a pointed end; the other side of the lower end of the vertical beam (111) is provided with a limit plate connected to the plug plate (114); and a pressing portion (116) connected to the plug plate (114) is provided through the slot (113).

5. The concrete ditch mold according to claim 1, characterized in that: The upper mold (3) comprises an L-shaped template (31), and triangular support plates (32) are vertically provided at the upper parts of the front and rear ends of the template (31), and the lower ends of the horizontal section of the template (31) are hinged to the inner side of the upper end of the corresponding inner template (2).

6. A concrete ditch mold according to claim 5, characterized in that: A rectangular first folding shielding plate (33) is hingedly connected to one side of the horizontal sections of the two upper molds (3) where they are close to each other. The first folding shielding plate (33) can be flipped upward to a horizontal position and spliced ​​together, or flipped downward to be folded. A corresponding rectangular second folding shielding plate (41) is hingedly connected to one side of the horizontal sections of the two upper molds (3) where they are close to each other. The second folding shielding plate (41) can be flipped downward to a horizontal position and spliced ​​together, or flipped upward to be folded.

7. A concrete ditch mold according to claim 6, characterized in that: The bottom mold (4) is an L-shaped plate-shaped mold body, and the second folding shielding plates (41) are respectively hingedly connected to the side ends of the mutually adjacent horizontal sections of the two bottom molds (4).

8. A concrete ditch mold according to any one of claims 1 to 7, characterized in that: The extended folding outer mold (5) comprises a plurality of rectangular extension plates (51), the side ends of the plurality of extension plates (51) are hinged in sequence, and can be folded and stored in an egg roll shape toward one side, or flattened; one end of the extended folding outer mold (5) is hinged to the inner side of the lower end of the corresponding inner mold plate (2), and can be flattened downward to a vertical shape, or folded and stored toward the inner side of the inner mold plate (2).

9. A concrete ditch mold according to any one of claims 1 to 7, characterized in that: Supporting pieces are detachably connected between the two ends of the two inner templates (2).

10. A concrete ditch mold according to any one of claims 1 to 7, characterized in that: The upper ends of the two inner formworks (2) are detachably connected to the supporting formwork (1) via connecting pieces.