CN113818480B - Retaining wall template with top soil-piling mountain-shaped structure - Google Patents

Abstract

The utility model relates to a retaining wall template with a top mound mountain-shaped structure, which relates to the field of retaining walls and comprises four groups of angle template units arranged at intervals and two groups of template units arranged between every two adjacent groups of angle template units at intervals, wherein the angle template units and the template units enclose the outline of a rectangular retaining wall; the angle die unit comprises an inner angle die and an outer angle die, the inner angle die and the outer angle die are both L-shaped, the inner angle die and the outer angle die are arranged at intervals in parallel, locking assemblies are arranged on the inner angle die and the outer angle die, and the two sets of template units are detachably connected to the outer angle die and the inner angle die through the locking assemblies respectively. The retaining wall formwork has the advantages that the retaining wall formwork with different specifications and sizes can be conveniently constructed, and the construction cost is reduced.

Description

Retaining wall template with top soil-piling mountain-shaped structure

Technical Field

The application relates to the field of retaining walls, in particular to a retaining wall template with a top mound mountain-shaped structure.

Background

In garden construction, in order to meet the requirements of people for landscapes, large mountain-shaped mounds are constructed at predetermined positions, and greening transformation is carried out on the mountains to form landscapes.

In order to prevent water and soil loss on the hills, rectangular retaining walls are often constructed at different positions of the hills, so that barriers are formed on the hills. When a concrete retaining wall is constructed on a hillside, a template is required to construct a frame, and concrete is poured into the frame to form the retaining wall; the formwork, which is a temporary supporting structure, is manufactured according to design requirements, a concrete structure or member is formed according to a specified position and geometric dimensions, and the correct position is maintained, so that the formwork can be used for bearing the self weight of the building formwork and external loads acting on the building formwork.

When the templates are constructed, templates with different sizes are customized and spliced to form a pouring space according to retaining walls with different specifications every time, so that the construction cost is high.

Disclosure of Invention

In order to facilitate the construction of retaining wall templates of different specifications and sizes and reduce construction cost, the application provides a retaining wall template with a top mound mountain-shaped structure.

The application provides a pair of top mound mountain structure retaining wall template adopts following technical scheme:

a retaining wall template with a top mound mountain-shaped structure comprises four groups of angle template units arranged at intervals and two groups of template units arranged between every two adjacent groups of angle template units at intervals, wherein the angle template units and the template units are enclosed to form the outline of a rectangular retaining wall;

the angle die unit comprises an inner angle die and an outer angle die, the inner angle die and the outer angle die are both L-shaped, the inner angle die and the outer angle die are arranged in parallel at intervals, locking assemblies are arranged on the inner angle die and the outer angle die, and the two groups of template units are detachably connected to the outer angle die and the inner angle die through the locking assemblies respectively;

the template unit comprises a plurality of large and medium templates and a plurality of splicing templates, the splicing templates are respectively arranged on two opposite sides of the large and medium templates, the large and medium templates are fixedly connected with the splicing templates in a separable mode, the two adjacent splicing templates are fixedly connected in a separable mode, and the splicing template far away from the large and medium templates is detachably connected with the outer corner template or the inner corner template through the locking assembly.

By adopting the technical scheme, during construction, workers select different numbers of splicing templates and medium and large templates to splice to form template units according to different lengths and widths of the rectangular retaining wall, so that retaining wall templates with different specifications and sizes can be constructed conveniently, the problem that the templates are frequently customized according to working conditions is solved, and the construction cost is reduced; when the retaining wall template is constructed, the inner angle formwork and the outer angle formwork in the angle formwork unit are fixed on the ground, the splicing formwork is fixedly connected with the inner angle formwork and the outer angle formwork through the locking assembly, a preset number of splicing formworks are sequentially spliced, and then the splicing formworks on two sides of the middle and large formwork are connected and fixed, so that the outline of the rectangular retaining wall is formed, and meanwhile, the retaining wall formwork can be disassembled and assembled through the angle formwork unit and the splicing unit, so that the recycling of the retaining wall formwork is facilitated; interior angle mould and exterior angle mould can provide firm support to pouring of retaining wall corner, provide good basis for retaining wall's formation.

Optionally, the locking assembly includes: the device comprises a spring, a fixed block and a contraction piece;

an inserting plate is fixedly connected to one side, far away from the large and medium die, of the splicing template adjacent to the inner corner die or the outer corner die, an inserting groove is formed in one side, close to the inserting plate, of the inner corner die or the outer corner die, and the inserting plate is in inserting fit with the inserting groove;

the inner side wall of the inserting groove is provided with two fixing grooves, one inner corner mold or two fixing grooves on the outer corner mold are symmetrically distributed relative to the diagonal line of the rectangular retaining wall, the two springs are respectively positioned in the two fixing grooves, and one ends of the two springs are respectively fixedly connected with the inner side walls, far away from the inserting groove, of the two fixing grooves;

the fixed blocks are arranged at the other ends of the two springs respectively, one end, close to the springs, of each fixed block is located in the corresponding fixed groove all the time, one side, close to the corresponding fixed groove, of each insertion plate is provided with a locking groove, one end, far away from the springs, of each fixed block is movably inserted into the corresponding locking groove, the contraction piece is arranged on the inner corner die or the outer corner die and used for enabling the two fixed blocks to be separated from or inserted into the locking grooves.

By adopting the technical scheme, when the splicing template is spliced with the inner angle mold or the outer angle mold, the two fixing blocks are immersed into the fixing grooves through the contraction piece, so that a constructor inserts the insertion plate on the splicing template into the insertion groove, and then the two fixing blocks are inserted into the locking grooves through the contraction piece, so that the inner angle mold or the outer angle mold is fixed with the splicing template; when the splicing formwork is detached, the two fixing blocks are separated from the locking grooves through the contraction pieces, so that the splicing formwork can be separated from the inner angle formwork or the outer angle formwork, the operation is convenient and fast, and the construction efficiency is improved.

Optionally, the constriction comprises: a rotating rod and a pull rope;

the upper surface of the inner angle mold or the outer angle mold is provided with a rotating groove, the rotating groove is positioned between the two fixing grooves, the rotating rod is vertically and rotatably installed in the rotating groove, and the upper end of the rotating rod protrudes out of the upper surface of the inner angle mold or the outer angle mold;

the pull rope is provided with two pull ropes, one of the pull ropes corresponds to one of the fixed blocks, one end of each pull rope is fixedly connected with the corresponding fixed block, connecting through holes communicated with the two fixed grooves are formed in two opposite sides of each rotating groove respectively, and the other end of each pull rope penetrates through the spring and the corresponding connecting through hole and is fixedly connected with the rotating rod.

By adopting the technical scheme, the rotating rod is twisted, the rotating rod winds the two pull ropes, the pull ropes are wound on the rotating rod, and the spring is compressed, so that the fixing block is immersed into the fixing groove, and the splicing template is separated from the inner angle die or the outer angle die; when the splicing template is required to be fixed with the inner angle mold or the outer angle mold, the fixing block is inserted into the locking groove under the action of the restoring force of the spring, so that the splicing and fixing of the splicing template are realized, and the operation is convenient.

Optionally, with well big mould is neighbouring the concatenation template is close to the vertical rotation in one side of well big mould is provided with the rotary rod, the periphery side rigid coupling of rotary rod has the anticreep board, the concatenation template is close to one side of rotary rod is seted up and is supplied the rotatory holding tank with placing of anticreep board, well big mould is close to one side of concatenation template is seted up and is supplied the rotatory and joint groove of pegging graft of anticreep board.

By adopting the technical scheme, when the large and medium molds and the splicing templates need to be spliced, the large and medium molds are flush with the splicing templates, the rotating rod is rotated to enable the anti-falling plates to be inserted into the clamping grooves, so that the baffles are formed in the vertical direction, and the large and medium molds and the splicing templates are not easy to separate in the vertical direction; simultaneously when the construction space is less, rotate the anticreep board to the holding tank in through the rotary rod to the constructor inserts big mould down from last, improves the practicality of retaining wall template concatenation.

It is optional, one the concatenation template is close to another one side of concatenation template is provided with the connecting block, another the concatenation template is close to the spread groove has been seted up to one side of connecting block, the upper end of spread groove is the opening form, the connecting block with spread groove grafting adaptation, adjacent two the concatenation department of concatenation template is provided with the mounting, the mounting is used for with the connecting block is in rigidity in the spread groove.

By adopting the technical scheme, when two adjacent splicing templates are spliced, the connecting block on one splicing template can be inserted into the connecting groove from one side or inserted from top to bottom for splicing, so that the practicability of splicing the template units is improved; connecting plate and spread groove grafting adaptation make between two adjacent concatenation templates be difficult for taking place to separate in the horizontal direction, and the mounting makes the connecting block be difficult for deviating from the spread groove in vertical direction, improves the steadiness of concatenation template concatenation, makes the installation of retaining wall template more firm.

Optionally, the mounting is fixing bolt, first threaded through hole has been seted up on the connecting block, set up on the concatenation template with the second threaded through hole that the spread groove is linked together, fixing bolt screw assembly in the second threaded through hole, just fixing bolt's free end with the inside wall activity butt that second threaded through hole was kept away from to the spread groove.

By adopting the technical scheme, the connecting block can be separated from the connecting groove by screwing the fixing bolt to separate from the first threaded through hole; screwing the fixing bolt thread and penetrating through the first thread through hole can realize the connection fixation between two adjacent splicing templates, and the operation is convenient.

Optionally, one the upper end of interior angle mould is equipped with first sleeve, rather than corresponding the upper end of exterior angle mould is equipped with the second sleeve, first sleeve with the second sleeve all lays with the diagonal of rectangle retaining wall is coaxial, first sleeve with be equipped with double threaded rod between the second sleeve, double threaded rod's both ends screw thread opposite direction but the pitch is the same, double threaded rod's both ends respectively with first sleeve with second sleeve screw assembly.

Through adopting above-mentioned technical scheme, twist and move double-end threaded rod and can realize being close to each other or the separation of interior angle mould and exterior angle mould to control retaining wall's the thickness of pouring, double-end threaded rod and first sleeve, second sleeve cooperate simultaneously to be convenient for form the support between the upper end of interior angle mould and exterior angle mould, make the difficult emergence deformation in upper end of interior angle mould and exterior angle mould, thereby guarantee the steadiness that retaining wall pour and the homogeneity of thickness.

Optionally, the bottom of the inner angle mold and the bottom of the outer angle mold are both fixedly connected with anchor rods.

Through adopting above-mentioned technical scheme, the stock inserts in the ground, can make the firm ground of being fixed in of interior angle mould and outer angle mould, strengthens the steadiness of angle mould unit installation.

Optionally, an elastic protrusion is fixedly connected to the outer peripheral side of the anti-falling plate, a groove is formed in the inner peripheral wall of the clamping groove, and the elastic protrusion is matched with the groove in a clamping mode.

Through adopting above-mentioned technical scheme, elastic bulge and recess joint adaptation make the anticreep board be difficult for taking place rotatoryly in the joint inslot to the steadiness of being connected between big mould and the concatenation template is further improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. during construction, workers select different numbers of splicing templates to be spliced with the large and medium templates to form template units according to different lengths and widths of the rectangular retaining wall, so that retaining wall templates with different specifications and sizes can be constructed conveniently, the problem that the templates are frequently customized according to working conditions is solved, and construction cost is reduced;

2. the two fixing blocks are immersed into the fixing grooves through the contraction pieces, so that a constructor can insert the insertion plate on the splicing template into the insertion groove, and then the two fixing blocks are inserted into the locking grooves through the contraction pieces, so that the inner angle mold or the outer angle mold is fixed with the splicing template, and the operation is convenient and fast;

3. twist and move double-end threaded rod and can realize being close to each other or separating of interior angle mould and exterior angle mould to the thickness of pouring of control retaining wall, double-end threaded rod and first sleeve, second sleeve cooperate to be convenient for form the support between the upper end of interior angle mould and exterior angle mould simultaneously, make the difficult emergence deformation in upper end of interior angle mould and exterior angle mould, thereby guarantee the steadiness that retaining wall was pour and the homogeneity of thickness.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an enlarged partial view taken along section B of FIG. 1;

FIG. 3 is a schematic view of the connection structure between the inner angle mold, the splice mold plate and the locking assembly in the embodiment of the present application;

FIG. 4 is a schematic view of a connection structure between two adjacent splicing templates in the embodiment of the present application;

FIG. 5 is another schematic structural diagram of the splice template in the embodiment of the present application;

fig. 6 is a schematic view of a connection structure between the large and medium molds and the splicing mold plate in the embodiment of the present application.

Reference numerals: 1. an angle die unit; 11. an inner angle die; 111. a first sleeve; 12. an outer corner mold; 121. a second sleeve; 2. a template unit; 21. a middle and large die; 211. a clamping groove; 2111. a groove; 22. splicing the templates; 221. a plugboard; 2211. a locking groove; 222. rotating the rod; 223. an anti-drop plate; 2231. an elastic bulge; 224. accommodating grooves; 225. connecting blocks; 2251. a first threaded through hole; 226. connecting grooves; 227. a second threaded through hole; 3. a locking assembly; 31. a spring; 32. a fixed block; 33. a contracting member; 331. rotating the rod; 332. pulling a rope; 4. inserting grooves; 41. fixing grooves; 5. a rotating groove; 6. a fixing member; 61. fixing the bolt; 7. a double-headed threaded rod; 8. an anchor rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses top mound mountain structure retaining wall template. Referring to fig. 1, the retaining wall formwork of the top mound mountain-shaped structure includes four sets of angle formwork units 1 arranged at intervals and two sets of formwork units 2 arranged at intervals between every two adjacent sets of angle formwork units 1, and the angle formwork units 1 and the formwork units 2 enclose the outline of the rectangular retaining wall.

The angle mould unit 1 comprises an inner angle mould 11 and an outer angle mould 12, the inner angle mould 11 and the outer angle mould 12 are both L-shaped, the inner angle mould 11 and the outer angle mould 12 are arranged at intervals in parallel, and anchor rods 8 are fixedly connected to the bottoms of the inner angle mould 11 and the outer angle mould 12.

Referring to fig. 1 and 2, in order to make the upper ends of the inner and outer angle forms 11 and 12 less likely to be deformed, the stability of the retaining wall casting and the uniformity of the thickness are ensured. The upper end corner rigid coupling of an interior angle mould 11 has the first sleeve 111 that the level was laid, first sleeve 111 is laid towards one side of exterior angle mould 12, the second sleeve 121 that the level was laid is fixed with to the upper end corner rigid coupling of its corresponding exterior angle mould 12, second sleeve 121 is laid towards one side of interior angle mould 11, first sleeve 111 and second sleeve 121 all lay with the diagonal of rectangle retaining wall is coaxial, be equipped with double threaded rod 7 between first sleeve 111 and the second sleeve 121, the both ends screw thread opposite direction of double threaded rod 7 is but the pitch is the same, the both ends of double threaded rod 7 respectively with first sleeve 111 and second sleeve 121 screw assembly, the middle part rigid coupling of double threaded rod 7 has the handle (not marked in the picture).

Referring to fig. 3, the inner corner mold 11 and the outer corner mold 12 are both provided with a locking assembly 3, and the two sets of template units 2 are detachably connected to the outer corner mold 12 and the inner corner mold 11 through the locking assemblies 3 respectively. Template unit 2 includes well big mould 21 and concatenation template 22, concatenation template 22 is provided with a plurality ofly, the relative both sides of well big mould 21 are located respectively to a plurality of concatenation templates 22, constructor can select the concatenation template 22 of different quantity in order to splice into required length according to the size of retaining wall length, detachable's fixed connection between well big mould 21 and the concatenation template 22, detachable's fixed connection between two adjacent concatenation templates 22, the concatenation template 22 of keeping away from well big mould 21 can be dismantled with outer angle mould 12 or interior angle mould 11 through locking Assembly 3 and be connected.

The locking assembly 3 comprises: spring 31, anchor 32 and retractor 33; the splicing template 22 adjacent to the inner corner mold 11 or the outer corner mold 12 is fixedly connected with three splicing plates 221 at one side far away from the middle large mold 21, the three splicing plates 221 are arranged at intervals along the vertical direction, the splicing plates 221 and the splicing template 22 are integrally formed, one side of the inner corner mold 11 or the outer corner mold 12 close to the splicing plates 221 is provided with a splicing groove 4, and the splicing plates 221 are spliced and matched with the splicing groove 4; three fixing grooves 41 are formed in the inner side wall of the insertion groove 4, the three fixing grooves 41 are arranged at intervals in the vertical direction, two fixing grooves 41 in one inner corner mold 11 or one outer corner mold 12 are symmetrically arranged relative to the diagonal line of the rectangular retaining wall, two springs 31 are arranged, the two springs 31 are respectively located in the two fixing grooves 41, and one ends of the two springs 31 are respectively fixedly connected with the inner side wall, far away from the insertion groove 4, of the two fixing grooves 41;

the fixed block 32 is equipped with three groups, and every group fixed block 32 is corresponding with three fixed slot 41 of co-altitude not respectively, and every group fixed block 32 has two, and two fixed blocks 32 are fixed in the other end of two springs 31 respectively, and the one end that fixed block 32 is close to spring 31 is located fixed slot 41 all the time, and locking groove 2211 has been seted up to one side that plugboard 221 is close to fixed slot 41, and the one end that spring 31 was kept away from to fixed block 32 is pegged graft the adaptation with locking groove 2211 activity.

Referring to fig. 3, a contraction member 33 is provided on the inner corner mold 11 or the outer corner mold 12, and the contraction member 33 is used to disengage or insert the two fixing blocks 32 into the locking groove 2211.

The constriction 33 comprises: a rotating lever 331 and a pulling rope 332; the upper surface of the inner angle mold 11 or the outer angle mold 12 is provided with a rotating groove 5, the rotating groove 5 is positioned between the two fixing grooves 41, the rotating rod 331 is vertically and rotatably installed in the rotating groove 5, and the upper end of the rotating rod is protruded out of the upper surface of the inner angle mold 11 or the outer angle mold 12; the pull ropes 332 are provided with three groups, each group of pull ropes 332 corresponds to three fixing grooves 41 with different heights, each group of pull ropes 332 is provided with two pull ropes 332, the two pull ropes 332 in each group correspond to the two fixing blocks 32 with the same height, one pull rope 332 corresponds to one fixing block 32, one end of each pull rope 332 is fixedly connected with the corresponding fixing block 32, connecting through holes communicated with the two fixing grooves 41 are formed in two opposite sides of the rotating groove 5, and the other end of each pull rope 332 penetrates through the spring 31 and the connecting through hole and is fixedly connected with the rotating rod 331.

The rotating rod 331 is screwed, the rotating rod 331 winds the two pull ropes 332, the pull ropes 332 are wound on the rotating rod 331, the spring 31 is compressed, and therefore the fixing block 32 is immersed into the fixing groove 41, and the splicing template 22 is separated from the inner corner die 11 or the outer corner die 12; when the splicing template 22 is required to be fixed with the inner angle mold 11 or the outer angle mold 12, the fixing block 32 is inserted into the locking groove 2211 under the action of the restoring force of the spring 31, so that the inner angle mold 11 or the outer angle mold 12 is fixed with the splicing template 22, and the operation is convenient.

Referring to fig. 1 and 4, in order to realize the detachable connection between two adjacent splicing templates 22, a connecting block 225 is fixedly connected to one side of one splicing template 22 close to the other splicing template 22, a connecting groove 226 is opened at one side of the other splicing template 22 close to the connecting block 225, the upper end of the connecting groove 226 is open, and the connecting block 225 is in insertion fit with the connecting groove 226. So that two adjacent splicing templates 22 can insert connecting block 225 on one splicing template 22 into connecting groove 226 from one side when spliced, and also can insert from top to bottom to splice, improving the practicality when template unit 2 is spliced.

Fixing pieces 6 are arranged at the joints of two adjacent splicing templates 22, and the fixing pieces 6 are used for fixing the positions of the connecting blocks 225 in the connecting grooves 226. Mounting 6 is fixing bolt 61, has seted up first screw thread through hole 2251 on connecting block 225, sets up the second screw thread through hole 227 that is linked together with connecting groove 226 on the concatenation template 22, and fixing bolt 61 screw assembly is in second screw thread through hole 227, and fixing bolt 61's free end and connecting groove 226 keep away from the inside wall activity butt of second screw thread through hole 227. Fixing bolt 61 makes connecting block 225 be difficult for deviating from connecting groove 226 in the vertical direction, improves the steadiness of concatenation template 22, makes the installation of retaining wall template more firm.

Referring to fig. 5 and 6, a rotating rod 222 is vertically and rotatably disposed on one side, close to the large and medium die 21, of the splicing template 22 close to the large and medium die 21, an anti-disengaging plate 223 is fixedly connected to the peripheral side of the rotating rod 222, the cross section of the anti-disengaging plate 223 is semicircular, two elastic protrusions 2231 are fixedly connected to the peripheral side of the anti-disengaging plate 223 at intervals, the elastic protrusions 2231 are made of rubber, an accommodating groove 224 for the anti-disengaging plate 223 to rotate and place is formed in one side, close to the rotating rod 222, of the splicing template 22, the cross section of the accommodating groove 224 is semicircular, the radius of the accommodating groove 224 is larger than that of the anti-disengaging plate 223, and a clamping groove 211 for the anti-disengaging plate 223 to rotate and be plugged is formed in one side, close to the splicing template 22, of the large and medium die 21. Two grooves 2111 are formed in the inner peripheral wall of the clamping groove 211 at intervals, and the elastic protrusions 2231 are in clamping fit with the grooves 2111.

When the middle and large dies 21 and the splicing templates 22 need to be spliced, the middle and large dies 21 and the splicing templates 22 are parallel and level, the rotating rod 222 is rotated to enable the anti-falling plate 223 to be inserted into the clamping groove 211, so that a barrier is formed in the vertical direction, and the middle and large dies 21 and the splicing templates 22 are not easy to separate in the vertical direction; the elastic protrusions 2231 and the grooves 2111 are in clamping fit, so that the anti-falling plate 223 is not easy to rotate in the clamping groove 211, and the connection stability between the middle and large dies 21 and the splicing die plates 22 is further improved.

Constructors can set the two sides of the splicing templates 22 into the modes of the insertion plate 221 and the rotating rod 222 respectively according to requirements, and can set the splicing templates 22 into the mode that one side is the insertion plate 221 and the other side is the connecting groove 226, so that different splicing templates 22 can be manufactured according to different requirements.

The implementation principle of the retaining wall template with the top mound mountain-shaped structure is as follows: during construction, the staff selects different quantities of splicing templates 22 to splice with the large and medium forms 21 to form the template unit 2 according to different lengths and widths of the rectangular retaining wall, when the retaining wall template is constructed, the inner corner forms 11 and the outer corner forms 12 in the corner form units 1 are fixed on the ground, the splicing templates 22 pass through the locking components 3 and the inner corner forms 11 and the outer corner forms 12 and are fixedly connected, the splicing templates 22 in preset quantities are spliced in sequence, the splicing templates 22 on the two sides of the large and medium forms 21 are connected and fixed, so that the outline of the rectangular retaining wall is formed, concrete can be poured in the templates to form the retaining wall, and the retaining wall templates can be dismantled after solidification.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (1)

1. The utility model provides a top mound mountain shape structure retaining wall template which characterized in that: the angle formwork device comprises four groups of angle formwork units (1) which are arranged at intervals and two groups of formwork units (2) which are arranged between every two adjacent groups of angle formwork units (1) at intervals, wherein the angle formwork units (1) and the formwork units (2) enclose the outline of a rectangular retaining wall;

the angle die unit (1) comprises an inner angle die (11) and an outer angle die (12), the inner angle die (11) and the outer angle die (12) are both L-shaped, the inner angle die (11) and the outer angle die (12) are arranged in parallel at intervals, locking assemblies (3) are arranged on the inner angle die (11) and the outer angle die (12), and the two groups of template units (2) are detachably connected to the outer angle die (12) and the inner angle die (11) through the locking assemblies (3) respectively;

the template unit (2) comprises a large and medium mould (21) and a plurality of splicing templates (22), the splicing templates (22) are respectively arranged at two opposite sides of the large and medium mould (21), the large and medium mould (21) and the splicing templates (22) are fixedly connected in a separable manner, two adjacent splicing templates (22) are fixedly connected in a separable manner, and the splicing templates (22) far away from the large and medium mould (21) are detachably connected with the outer corner mould (12) or the inner corner mould (11) through the locking assemblies (3);

the locking assembly (3) comprises: a spring (31), a fixed block (32) and a contraction part (33);

an inserting plate (221) is fixedly connected to one side, far away from the middle large die (21), of the splicing template (22) close to the inner corner die (11) or the outer corner die (12), an inserting groove (4) is formed in one side, close to the inserting plate (221), of the inner corner die (11) or the outer corner die (12), and the inserting plate (221) is in inserting fit with the inserting groove (4);

fixing grooves (41) are formed in the inner side wall of the insertion groove (4), two fixing grooves (41) in one inner corner mold (11) or one outer corner mold (12) are symmetrically arranged relative to the diagonal line of the rectangular retaining wall, two springs (31) are arranged, the two springs (31) are respectively located in the two fixing grooves (41), and one ends of the two springs (31) are fixedly connected with the inner side wall, far away from the insertion groove (4), of the two fixing grooves (41);

the two fixing blocks (32) are respectively arranged at the other ends of the two springs (31), one end, close to the spring (31), of each fixing block (32) is always located in the corresponding fixing groove (41), one side, close to the corresponding fixing groove (41), of the insertion plate (221) is provided with a locking groove (2211), one end, far away from the spring (31), of each fixing block (32) is movably inserted into the corresponding locking groove (2211) in an insertion mode, the contraction piece (33) is arranged on the inner angle die (11) or the outer angle die (12), and the contraction piece (33) is used for enabling the two fixing blocks (32) to be separated from or inserted into the corresponding locking grooves (2211);

the constriction (33) comprises: a rotating rod (331) and a pull rope (332);

the upper surface of the inner angle mold (11) or the outer angle mold (12) is provided with a rotating groove (5), the rotating groove (5) is positioned between the two fixing grooves (41), the rotating rod (331) is vertically and rotatably installed in the rotating groove (5), and the upper end of the rotating rod protrudes out of the upper surface of the inner angle mold (11) or the outer angle mold (12);

two pull ropes (332) are arranged, one pull rope (332) corresponds to one fixed block (32), one end of each pull rope (332) is fixedly connected with the corresponding fixed block (32), two opposite sides of each rotating groove (5) are respectively provided with a connecting through hole communicated with the two fixed grooves (41), and the other end of each pull rope (332) penetrates through the spring (31) and the connecting through hole and is fixedly connected with the rotating rod (331);

a rotating rod (222) is vertically and rotatably arranged on one side, close to the large and medium die (21), of the splicing die plate (22) adjacent to the large and medium die (21), an anti-falling plate (223) is fixedly connected to the outer peripheral side of the rotating rod (222), an accommodating groove (224) for the rotation and placement of the anti-falling plate (223) is formed in one side, close to the rotating rod (222), of the splicing die plate (22), and a clamping groove (211) for the rotation and insertion of the anti-falling plate (223) is formed in one side, close to the splicing die plate (22), of the large and medium die (21);

one side, close to the other splicing template (22), of one splicing template (22) is provided with a connecting block (225), one side, close to the other splicing template (22), of the other splicing template is provided with a connecting groove (226), the upper end of the connecting groove (226) is in an opening shape, the connecting block (225) is in splicing fit with the connecting groove (226), a fixing part (6) is arranged at the splicing position of every two adjacent splicing templates (22), and the fixing part (6) is used for fixing the position of the connecting block (225) in the connecting groove (226);

the fixing piece (6) is a fixing bolt (61), a first threaded through hole (2251) is formed in the connecting block (225), a second threaded through hole (227) communicated with the connecting groove (226) is formed in the splicing template (22), the fixing bolt (61) is assembled in the second threaded through hole (227) in a threaded manner, and the free end of the fixing bolt (61) is movably abutted to the inner side wall, far away from the second threaded through hole (227), of the connecting groove (226);

a first sleeve (111) is arranged at the upper end of one inner angle die (11), a second sleeve (121) is arranged at the upper end of the corresponding outer angle die (12), the first sleeve (111) and the second sleeve (121) are coaxially arranged with the diagonal line of the rectangular retaining wall, a double-threaded rod (7) is arranged between the first sleeve (111) and the second sleeve (121), the thread directions of two ends of the double-threaded rod (7) are opposite, but the thread pitches of the two ends of the double-threaded rod (7) are the same, and two ends of the double-threaded rod (7) are respectively in thread assembly with the first sleeve (111) and the second sleeve (121);

the bottoms of the inner angle die (11) and the outer angle die (12) are fixedly connected with anchor rods (8);

elastic protrusions (2231) are fixedly connected to the outer peripheral side of the anti-falling plate (223), grooves (2111) are formed in the inner peripheral wall of the clamping groove (211), and the elastic protrusions (2231) are matched with the grooves (2111) in a clamping mode.

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