CN114150867A

CN114150867A - Combined building template

Info

Publication number: CN114150867A
Application number: CN202111565389.0A
Authority: CN
Inventors: 张保玲; 苏枫; 张捷; 张豪
Original assignee: Jiangsu Haoran New Materials Co ltd
Current assignee: Jiangsu Haoran New Materials Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-08
Anticipated expiration: 2041-12-20
Also published as: CN114150867B

Abstract

The invention discloses a combined building template, in particular to the technical field of building templates, most of the existing building templates are fixed by nails when being spliced and fixed, the installation efficiency is lower, and the later disassembly is inconvenient, so that the repeated utilization is difficult to realize, in addition, the stability and the firmness of splicing between the adjacent templates are poor due to the single nail fixing mode, the combined building template comprises a template body, an installation cavity is arranged inside one side of the template body, a first splicing mechanism is arranged in the installation cavity, a second splicing mechanism is arranged on one side of the template body close to the first splicing mechanism, a driving mechanism matched with the first splicing mechanism and the second splicing mechanism is arranged in the installation cavity, under the coordination action of the driving mechanism and the first splicing mechanism, the adjacent template bodies can be spliced conveniently and rapidly, so that the installation efficiency of the template body is improved, and the later stage of being convenient for is dismantled, and then can realize reuse many times.

Description

Combined building template

Technical Field

The invention relates to the technical field of building templates, in particular to a combined building template.

Background

The building formwork is a temporary supporting structure, which is a formwork and a bracket formed by pouring concrete, and can be divided into a building formwork, a multilayer board, double-sided compound glue, a film-coated board, a double-sided film-coated building formwork and the like according to the properties of materials, the building formwork can be divided into a cast-in-place concrete formwork, a pre-assembled formwork, a large formwork, a jump formwork and the like according to the construction process conditions, the aim of formwork engineering is fulfilled, and the purposes of ensuring the quality and construction safety of a concrete engineering, accelerating the construction progress and reducing the engineering cost are achieved.

Although the building template is widely applied during the current construction operation, the building template still has certain defects: present building templates mostly only adopts the nail to fix when the concatenation is fixed, and the installation effectiveness is lower, and the later stage of just being not convenient for is dismantled to be difficult to realize reuse many times, in addition, the single fixed mode that adopts the nail also leads to the stability and the fastness of concatenation between the adjacent template relatively poor, for this reason we propose a combination building templates and be used for solving above-mentioned problem.

Disclosure of Invention

The present invention is directed to a composite building form to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a combined building template, includes the template body, the installation cavity has been seted up to one side inside of template body, be equipped with first splicing mechanism in the installation cavity, and one side that the template body is close to first splicing mechanism is equipped with second splicing mechanism, be equipped with the actuating mechanism who uses with first splicing mechanism and the cooperation of second splicing mechanism in the installation cavity, the upper end and the lower extreme of template body one side all are equipped with reinforcing mechanism.

As a preferable technical scheme of the invention, the first splicing mechanism comprises a first rotating rod and a second rotating rod, the first rotating rod and the second rotating rod are rotatably inserted into the installation cavity, the first rotating rod and the second rotating rod are in symmetrical structures, the first rotating rod is fixedly sleeved with a connecting gear, the connecting gear is mutually meshed, one end of the first rotating rod, far away from the reinforcing mechanism, is fixedly sleeved with a first winding roller, the first winding roller is fixedly connected with a first traction rope, one end of the second rotating rod, near the reinforcing mechanism, is fixedly connected with a limit hook, one end of the limit hook, near the second rotating rod, is fixedly installed with a torsion spring, the torsion spring is movably sleeved on the outer side of the second rotating rod, one end of the torsion spring, far away from the limit hook, is fixedly connected with the side wall of the installation cavity, one side of the limit hook, near the second rotating rod, is fixedly installed with a side lever, and the side lever is rotatably sleeved with a sleeve ring, one end of the first traction rope, which is far away from the first rotating rod, is fixedly connected with the lantern ring.

As a preferred technical scheme of the invention, first grooves are symmetrically distributed on one side of the template body away from the installation cavity, limiting posts are fixedly installed in the first grooves, and limiting hooks on the template body can be movably sleeved on the outer sides of the limiting posts on the other template body.

As a preferred technical scheme of the invention, the second splicing mechanism comprises a mounting block, the mounting block is fixedly connected with the template body, a T-shaped groove is formed in the mounting block, a symmetrically arranged fixed plate is fixedly arranged at one end of the T-shaped groove far away from the template body, a positioning rod is slidably inserted on the fixed plate, a limiting ring is fixedly sleeved at the opposite end of the positioning rod, return springs are fixedly arranged at the opposite sides of the limiting ring, the return springs are movably sleeved at the outer sides of the positioning rods, the opposite ends of the return springs are fixedly connected with the fixed plate, a second traction rope is fixedly arranged at the opposite end of the positioning rod, pulleys which are rotationally and symmetrically distributed are arranged in the T-shaped groove, the second traction rope is in winding connection with the pulleys, a sliding plate is fixedly arranged at the leading-out end of the second traction rope which is in winding connection with the pulleys, and the sliding plate is slidably clamped in the T-shaped groove, and a third traction rope is fixedly arranged in the middle of one side of the sliding plate far away from the pulley.

As a preferred technical scheme of the present invention, a second groove is formed in a middle portion of one side of the template body, which is far away from the mounting block, positioning holes are formed in inner walls of the second groove, the mounting block on the template body can be slidably inserted into the second groove on the other template body, and the positioning rod on the template body can be slidably inserted into the positioning hole on the other template body.

As a preferred technical scheme of the invention, the driving mechanism comprises a third rotating rod, the third rotating rod is rotatably inserted into the mounting cavity, a second winding roller and a first wheel disc are fixedly sleeved on the third rotating rod, one end of the third traction rope, which is far away from the sliding plate, extends into the mounting cavity and is fixedly connected with the second winding roller, a second wheel disc is fixedly sleeved on the first rotating rod, which is positioned at the lower end of the third traction rope, and a belt is arranged on the outer sides of the second wheel disc and the first wheel disc in a transmission manner.

As a preferred technical scheme of the invention, a counter bore is formed in one side of the template body, one end of the third rotating rod extends into the counter bore, a rotating wheel is fixedly sleeved at the tail end of the third rotating rod, and anti-slip grooves distributed in an array are formed in the outer wall of the rotating wheel.

As a preferred technical scheme of the invention, the reinforcing mechanism comprises a first L-shaped plate and a second L-shaped plate, the first L-shaped plate and the second L-shaped plate are both fixedly mounted on the template body, a fourth rotating rod is rotatably inserted in the first L-shaped plate, a reinforcing plate is fixedly mounted at one end of the fourth rotating rod close to the template body, the reinforcing plate on the template body can be movably clamped inside the second L-shaped plate on the other template body, a rotating plate is fixedly sleeved at one end of the fourth rotating rod far from the template body, a through hole is formed in the rotating plate, a fixing hole matched with the through hole is formed in the first L-shaped plate, and a bolt can be inserted in the through hole and the fixing hole in a threaded manner.

Compared with the prior art, the invention has the beneficial effects that:

1. under the coordination of actuating mechanism and first concatenation mechanism, can be convenient quick splice adjacent template body to improve the installation effectiveness of template body, and be convenient for the later stage and dismantle, and then can realize reuse many times.

2. Through the cooperation use of actuating mechanism and second concatenation mechanism, can carry out the secondary concatenation with adjacent template body to the concatenation stability and the fastness of adjacent template body have effectively been improved.

3. Through the use of setting up of strengthening mechanism, can stably block the gusset plate and establish corresponding second L template to can further improve the stability and the fastness of concatenation between the adjacent template body.

Drawings

FIG. 1 is a schematic structural view of the present invention,

figure 2 is a schematic view of the connection of the present invention,

FIG. 3 is an enlarged view of the structure at A in FIG. 2,

FIG. 4 is an enlarged view of the structure at B in FIG. 2,

FIG. 5 is an enlarged view of the structure at C in FIG. 2 according to the present invention,

figure 6 is a schematic cross-sectional view of the template body of the present invention,

FIG. 7 is an enlarged view of the structure of FIG. 6 at D according to the present invention,

FIG. 8 is an enlarged view of the structure at E in FIG. 6 according to the present invention,

FIG. 9 is an enlarged view of the structure at F in FIG. 6 according to the present invention.

In the figure: 1. a template body; 11. a mounting cavity; 12. a first groove; 13. a limiting column; 14. a second groove; 15. positioning holes; 16. a counter bore; 2. a first splicing mechanism; 21. a first rotating lever; 22. a second rotating rod; 23. a connecting gear; 24. a first wind-up roll; 25. a first pull cord; 26. a limiting hook; 27. a torsion spring; 28. a side lever; 29. a collar; 3. a second splicing mechanism; 31. mounting blocks; 32. a T-shaped groove; 33. a fixing plate; 34. positioning a rod; 35. a limiting ring; 36. a return spring; 37. a second pull cord; 38. a pulley; 39. a slide plate; 310. a third pull cord; 4. a drive mechanism; 41. a third rotating rod; 42. a second wind-up roll; 43. a first wheel disc; 44. a second wheel disc; 45. a belt; 46. a rotating wheel; 5. a reinforcement mechanism; 51. a first L-shaped plate; 52. a second L-shaped plate; 53. a fourth rotating rod; 54. a reinforcing plate; 55. a rotating plate; 56. perforating; 57. a fixing hole; 58. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1 to 9, the invention provides a combined building template, which comprises a template body 1, wherein an installation cavity 11 is formed in one side of the template body 1, a first splicing mechanism 2 is arranged in the installation cavity 11, a second splicing mechanism 3 is arranged on one side of the template body 1 close to the first splicing mechanism 2, a driving mechanism 4 matched with the first splicing mechanism 2 and the second splicing mechanism 3 for use is arranged in the installation cavity 11, and reinforcing mechanisms 5 are arranged at the upper end and the lower end of one side of the template body 1.

Further, the first splicing mechanism 2 comprises a first rotating rod 21 and a second rotating rod 22, the first rotating rod 21 and the second rotating rod 22 are both rotatably inserted into the installation cavity 11, the first rotating rod 21 and the second rotating rod 22 are both of a symmetrical structure, the first rotating rod 21 is fixedly sleeved with a connecting gear 23, the connecting gear 23 is meshed with each other, one end of the first rotating rod 21, which is far away from the reinforcing mechanism 5, is fixedly sleeved with a first winding roller 24, the first winding roller 24 is fixedly connected with a first traction rope 25, one end of the second rotating rod 22, which is near to the reinforcing mechanism 5, is fixedly connected with a limit hook 26, one end of the limit hook 26, which is near to the second rotating rod 22, is fixedly provided with a torsion spring 27, the torsion spring 27 is movably sleeved outside the second rotating rod 22, one end of the torsion spring 27, which is far away from the limit hook 26, is fixedly connected with the inner cavity side wall of the installation cavity 11, and the setting of the torsion spring 27 facilitates the automatic resetting of the limit hook 26, a side lever 28 is fixedly arranged on one side of the limit hook 26 close to the second rotating rod 22, a sleeve ring 29 is rotatably sleeved on the side lever 28, one end of the first traction rope 25 far away from the first rotating rod 21 is fixedly connected with the sleeve ring 29, the side lever 28 and the sleeve ring 29 are arranged and used to provide convenience for stable rotation of the limit hook 26, one side of the template body 1 far away from the installation cavity 11 is provided with first grooves 12 which are symmetrically distributed, limit posts 13 are fixedly arranged in the first grooves 12, the limit hook 26 on the template body 1 can be movably sleeved on the outer side of the limit post 13 on the other template body 1, so that the adjacent template bodies 1 can be fixedly spliced and spliced together for the first time, and splicing is more convenient, the second splicing mechanism 3 comprises an installation block 31, the installation block 31 is fixedly connected with the template body 1, and a T-shaped groove 32 is arranged inside the installation block 31, the end, far away from the template body 1, of the T-shaped groove 32 is fixedly provided with fixing plates 33 which are symmetrically arranged, the fixing plates 33 are slidably inserted with positioning rods 34, opposite ends of the positioning rods 34 are fixedly sleeved with limiting rings 35, opposite sides of the limiting rings 35 are fixedly provided with return springs 36, the return springs 36 are movably sleeved on the outer sides of the positioning rods 34, opposite ends of the return springs 36 are fixedly connected with the fixing plates 33, opposite ends of the positioning rods 34 are fixedly provided with second traction ropes 37, pulleys 38 which are symmetrically distributed are rotatably arranged in the T-shaped groove 32, the second traction ropes 37 are in winding connection with the pulleys 38, leading ends of the second traction ropes 37 which are in winding connection with the pulleys 38 are fixedly provided with sliding plates 39, the arrangement of the pulleys 38 facilitates the guiding movement of the second traction ropes 37, and the sliding plates 39 are slidably clamped in the T-shaped groove 32, a third traction rope 310 is fixedly installed in the middle of one side of the sliding plate 39, which is far away from the pulley 38, a second groove 14 is formed in the middle of one side of the formwork body 1, which is far away from the installation block 31, positioning holes 15 are formed in the inner wall of the second groove 14, which are symmetrically distributed, the installation block 31 on the formwork body 1 can be slidably inserted into the second groove 14 on another formwork body 1, and the positioning rods 34 on the formwork body 1 can be slidably inserted into the positioning holes 15 on another formwork body 1, so that two adjacent sets of formwork bodies 1 can be spliced and fixed for the second time, and the splicing firmness between the adjacent formwork bodies 1 is effectively improved, the driving mechanism 4 comprises a third rotating rod 41, the third rotating rod 41 is rotatably inserted into the installation cavity 11, a second winding roller 42 and a first wheel disc 43 are fixedly sleeved on the third rotating rod 41, one end of the third traction rope 310, which is far away from the sliding plate 39, extends into the installation cavity 11 and is fixedly connected with the second winding roller 42, the second wheel disc 44 is fixedly sleeved on the first rotating rod 21 at the lower end of the third traction rope 310, the belt 45 is arranged on the outer sides of the second wheel disc 44 and the first wheel disc 43 in a transmission manner, the first rotating rod 21 and the third rotating rod 41 are synchronously rotated by matching the first wheel disc 43, the second wheel disc 44 and the belt 45, the counter bore 16 is formed in one side of the template body 1, one end of the third rotating rod 41 extends into the counter bore 16 and is fixedly sleeved with the rotating wheel 46 at the tail end thereof, and a user can rotate the rotating wheel 46, so that the second winding roller 42 and the first wheel disc 43 can be driven by the third rotating rod 41 to rotate, the belt 45 drives the second wheel disc 44 to rotate, and then drives the corresponding first rotating rod 21 to rotate, and further, the other first rotating rod 21 can be driven to synchronously rotate by the connecting gear 23, so that two groups of first winding rollers 24 can be driven to synchronously rotate, and then can progressively wind first haulage rope 25 on corresponding first wind-up roll 24, during this period, cooperation lantern ring 29 can stimulate limit hook 26 with the use of side lever 28 and rotate, thereby make limit hook 26 keep away from the one end of template body 1 progressively to the one side removal that is close to template body 1, meanwhile, second wind-up roll 42 can progressively carry out the rolling with third haulage rope 310, thereby can stimulate slide 39 and move to the one side that is close to template body 1, and then drive two sets of second haulage ropes 37 and move, and the use of cooperation pulley 38 can drive two sets of locating levers 34 and do the motion in opposite directions, thereby can extrude reset spring 36 through spacing ring 35, set up the antiskid groove of array distribution on the outer wall of runner 46, the setting use in antiskid groove can play the effect that increases friction and be convenient for the operation.

Further, the reinforcing mechanism 5 includes a first L-shaped plate 51 and a second L-shaped plate 52, the first L-shaped plate 51 and the second L-shaped plate 52 are both fixedly mounted on the template body 1, and a fourth rotating rod 53 is inserted in the first L-shaped plate 51 in a rotating manner, a reinforcing plate 54 is fixedly mounted at one end of the fourth rotating rod 53 close to the template body 1, the reinforcing plate 54 on the template body 1 can be movably clamped inside the second L-shaped plate 52 on the other template body 1, so that the connection firmness between two adjacent sets of template bodies 1 can be effectively improved, a rotating plate 55 is fixedly sleeved at one end of the fourth rotating rod 53 far from the template body 1, a through hole 56 is formed on the rotating plate 55, a fixing hole 57 matched with the through hole 56 is formed on the first L-shaped plate 51, a bolt 58 can be inserted in the through hole 56 and the fixing hole 57 in a threaded manner, so that the reinforcing plate 54 can be fixed on the first L-shaped plate 51, and then provide the guarantee for the stable block of gusset plate 54 and second L template 52, can unscrew the bolt 58 that is close to adjacent template body 1 junction and rotate corresponding gusset plate 54 during the use, thus make gusset plate 54 block into corresponding the inboard of second L template 52, can reverse knob bolt 58 after burning, thus make it insert in corresponding perforation 56 and fixed hole 57.

The working principle is as follows: when in use, the rotating wheel 46 on the first group of template body 1 can be rotated, so that the third rotating rod 41 can drive the second winding roller 42 and the first wheel disc 43 to rotate, the belt 45 can drive the second wheel disc 44 to rotate, and then the corresponding first rotating rod 21 can be driven to rotate, and further the connecting gear 23 can be used for driving the other first rotating rod 21 to synchronously rotate, so that the two groups of first winding rollers 24 can be driven to synchronously rotate, and further the first traction rope 25 can be gradually wound on the corresponding first winding roller 24, during the period, the limiting hook 26 can be pulled to rotate by matching with the use of the sleeve ring 29 and the side rod 28, so that one end, far away from the template body 1, of the limiting hook 26 gradually moves to one side close to the template body 1;

meanwhile, the second winding roller 42 can gradually wind the third pulling rope 310, so that the sliding plate 39 can be pulled to move to one side close to the template body 1, the two groups of second pulling ropes 37 are driven to move, the two groups of positioning rods 34 can be driven to move oppositely by matching with the pulley 38, and the reset spring 36 can be extruded by the limiting ring 35;

after the opposite end of the positioning rod 34 is received back into the mounting block 31, a side of the other template body 1, which is provided with the first groove 12 and the second groove 14, can be drawn close to the first set of template bodies 1 until the two are tightly attached, and then the rotating wheel 46 can be loosened, at this time, under the action of the torsion force of the torsion spring 27 and the elastic force of the return spring 36, the positioning rod 34 and the limiting hook 26 can be driven to do reset motion, so that the positioning rod 34 can be inserted into the corresponding positioning hole 15, and the limiting hook 26 can be sleeved outside the corresponding limiting column 13;

the bolts 58 near the junction of adjacent formwork bodies 1 can then be unscrewed and the corresponding reinforcement plate 54 can be rotated so that the reinforcement plate 54 snaps inside the corresponding second L-shaped plate 52, the knob bolts 58 can be reversed after firing so that they are inserted into the corresponding through holes 56 and fixing holes 57, and thereafter the above steps can be repeated to splice the remaining formwork bodies 1, and after use, they can be disassembled by reversing the above steps.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a combination building templates, includes template body (1), its characterized in that: one side of template body (1) is inside has seted up installation cavity (11), be equipped with first splicing mechanism (2) in installation cavity (11), and one side that template body (1) is close to first splicing mechanism (2) is equipped with second splicing mechanism (3), be equipped with actuating mechanism (4) that use with first splicing mechanism (2) and second splicing mechanism (3) cooperation in installation cavity (11), the upper end and the lower extreme of template body (1) one side all are equipped with reinforcing mechanism (5).

2. The modular building template as recited in claim 1, wherein: the first splicing mechanism (2) comprises a first rotating rod (21) and a second rotating rod (22), the first rotating rod (21) and the second rotating rod (22) are all rotated and inserted in the installation cavity (11), the first rotating rod (21) and the second rotating rod (22) are both of a symmetrical structure, a connecting gear (23) is fixedly sleeved on the first rotating rod (21) and is meshed with each other, a first winding roller (24) is fixedly sleeved at one end, away from the reinforcing mechanism (5), of the first rotating rod (21), a first traction rope (25) is fixedly connected on the first winding roller (24), a limiting hook (26) is fixedly connected at one end, close to the reinforcing mechanism (5), of the second rotating rod (22) of the second rotating rod (26), a torsion spring (27) is fixedly installed at one end, close to the second rotating rod (22), of the torsion spring (27) is movably sleeved on the outer side of the second rotating rod (22), and torsional spring (27) keep away from the one end of spacing hook (26) and the inner chamber lateral wall fixed connection of installation cavity (11), one side fixed mounting that spacing hook (26) are close to second bull stick (22) has side lever (28), rotate on side lever (28) and cup jointed lantern ring (29), the one end and the lantern ring (29) fixed connection of first bull stick (21) are kept away from in first haulage rope (25).

3. The modular building template as recited in claim 2, wherein: the template body (1) is kept away from one side of installation cavity (11) and is seted up first recess (12) of symmetric distribution, fixed mounting has spacing post (13) in first recess (12), spacing hook (26) on template body (1) can the movable sleeve establish the outside of spacing post (13) on another template body (1).

4. The modular building template as recited in claim 2, wherein: the second splicing mechanism (3) comprises a mounting block (31), the mounting block (31) is fixedly connected with the template body (1), a T-shaped groove (32) is formed in the mounting block (31), one end, far away from the template body (1), of the T-shaped groove (32) is fixedly provided with symmetrically-arranged fixing plates (33), a positioning rod (34) is slidably inserted into the fixing plates (33), the opposite ends of the positioning rod (34) are fixedly sleeved with limiting rings (35), the opposite sides of the limiting rings (35) are fixedly provided with return springs (36), the return springs (36) are movably sleeved on the outer sides of the positioning rod (34), the opposite ends of the return springs (36) are fixedly connected with the fixing plates (33), the opposite ends of the positioning rod (34) are fixedly provided with second traction ropes (37), and pulleys (38) which are symmetrically distributed are rotatably arranged in the T-shaped groove (32), second haulage rope (37) and pulley (38) wraparound, and second haulage rope (37) wraparound have slide (39) at the end fixed mounting that draws forth on pulley (38), slide (39) slip card is established in T type groove (32), and slide (39) keep away from one side middle part fixed mounting of pulley (38) has third haulage rope (310).

5. The modular building template as recited in claim 4, wherein: the middle part of one side of the template body (1) far away from the mounting block (31) is provided with a second groove (14), the inner wall of the second groove (14) is provided with positioning holes (15) which are symmetrically distributed, the mounting block (31) on the template body (1) can be slidably inserted into the second groove (14) on the other template body (1), and the positioning rod (34) on the template body (1) can be slidably inserted into the positioning hole (15) on the other template body (1).

6. The modular building template as recited in claim 4, wherein: actuating mechanism (4) include third bull stick (41), third bull stick (41) are rotated and are inserted and establish in installation cavity (11), and fixed cover on third bull stick (41) have connect second wind-up roll (42) and first rim plate (43), the one end that slide (39) were kept away from in third haulage rope (310) extends to installation cavity (11) and with second wind-up roll (42) fixed connection, is located fixed cover on first bull stick (21) of third haulage rope (310) lower extreme has connect second rim plate (44), second rim plate (44) are equipped with belt (45) with the outside transmission of first rim plate (43).

7. The composite building template as claimed in claim 6, wherein: one side of the template body (1) is provided with a counter bore (16), one end of the third rotating rod (41) extends into the counter bore (16) and is fixedly sleeved with a rotating wheel (46) at the tail end of the third rotating rod, and the outer wall of the rotating wheel (46) is provided with anti-skidding grooves distributed in an array manner.

8. The modular building template as recited in claim 1, wherein: the reinforcing mechanism (5) comprises a first L-shaped plate (51) and a second L-shaped plate (52), the first L-shaped plate (51) and the second L-shaped plate (52) are both fixedly arranged on the template body (1), a fourth rotating rod (53) is rotatably inserted on the first L-shaped plate (51), a reinforcing plate (54) is fixedly installed at one end of the fourth rotating rod (53) close to the template body (1), the reinforcing plate (54) on the template body (1) can be movably clamped on the inner side of the second L-shaped plate (52) on the other template body (1), a rotating plate (55) is fixedly sleeved at one end of the fourth rotating rod (53) far away from the template body (1), a through hole (56) is formed in the rotating plate (55), and the first L-shaped plate (51) is provided with a fixing hole (57) matched with the through hole (56), bolts (58) can be inserted into the through holes (56) and the fixing holes (57) in a threaded manner.