Template fastening device and fastening method

Abstract

The application provides a template fastening device and a fastening method. The template fastening device comprises an outer sleeve, built-in rods and fastening mechanisms. The outer sleeve is located between two opposite templates. The two built-in rods are inserted into the templates and are screwed into the outer sleeve. The fastening mechanisms are provided with two. The fastening mechanisms comprise support rods and fastening components. The support rods are arranged on the built-in rods. The fastening components are arranged on the support rods. The support rods are used to rotate the built-in rods so that the fastening components abut against the outer sidewalls of the templates to fasten the templates. The template fastening device of the application increases the contact area with the templates, improves the stability of the fastened templates and improves the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building engineering template installation, and particularly relates to a template fastening device and a fastening method. BACKGROUND

[0002] In the process of engineering construction, template engineering is involved. In general, after the steel plate is tied, the template needs to be erected and fastened by using fasteners, and then the fixed template is supported and reinforced by using horizontal support rods.

[0003] At present, the fastener used in the template fixing is generally a through screw. The through screw passes through the template, and the two ends of the through screw are threadedly connected with the nut. The nut abuts against the template, so as to fix the template.

[0004] However, when the amount of concrete pouring is large, the fastening force provided by the nut is insufficient to fix the template, which easily causes the template to loosen and reduces the quality of concrete pouring. SUMMARY

[0005] The present application provides a template fastening device and a fastening method to solve the problem of poor fastening force of the fastening device, which causes the template to loosen.

[0006] In one aspect, the present application provides a template fastening device, which comprises a sleeve pipe, an embedded rod and a fastening mechanism.

[0007] The sleeve pipe is located between two opposite templates, and the embedded rod is provided with two embedded rods which are respectively inserted into the templates and threadedly connected in the sleeve pipe.

[0008] The fastening mechanism is provided with two fastening mechanisms, the fastening mechanism comprises a support rod and a fastening component, the support rod is arranged on the embedded rod, the fastening component is arranged on the support rod, and the support rod is used to rotate the embedded rod, so that the fastening component abuts against the outer side wall of the template, so as to fasten the template.

[0009] In some embodiments, the middle part of the support rod is fixed on the embedded rod, the same support rod has two fastening components, and the two fastening components are respectively arranged on the two sides of the embedded rod.

[0010] In some embodiments, the fastening component comprises a contact plate and an adjusting piece, the contact plate is slidingly arranged on the support rod, the sliding direction of the contact plate is parallel to the length direction of the embedded rod, and the adjusting piece connects the contact plate on the support rod, so as to adjust the position of the contact plate.

[0011] In some embodiments, the adjusting member comprises an adjusting screw, the adjusting screw is threaded on the support rod, and the adjusting screw is rotationally connected to the contact plate so that the contact plate abuts against the template.

[0012] In some embodiments, the adjusting screw on the same contact plate is provided as at least two, and the adjusting screws are rotationally connected to the contact plate.

[0013] In some embodiments, the fastening assembly further comprises a reinforcing rod, an arc-shaped slot is formed on the side of the contact plate close to the template, the reinforcing rod is clamped between the arc-shaped slot and the template, and the contact plates of the plurality of fastening mechanisms are clamped with the same reinforcing rod.

[0014] In some embodiments, the support rod comprises a rod body and a force rod, the rod body is fixed on the built-in rod, an accommodation slot is formed on one side of the end of the rod body, the force rod is accommodated in the accommodation slot, one end of the force rod close to the end of the rod body is hingedly connected to the rod body, and when the force rod is turned out of the accommodation slot, the side wall of the force rod abuts against the slot wall of the accommodation slot.

[0015] In some embodiments, the force rod is provided with a groove, and the position of the groove corresponds to one adjusting screw.

[0016] In some embodiments, the end of the built-in rod is provided with an adjusting head, and the adjusting head is provided with an operation slot.

[0017] In another aspect, the application provides a template fastening method using the template fastening device described above, further comprising the following steps:

[0018] When the template is fixed, the outer sleeve is inserted from one side of the template until the outer sleeve is inserted into the opposite template;

[0019] Two built-in rods are respectively threaded to the two ends of the outer sleeve;

[0020] The support rod is held by hand, and the built-in rods are rotated so that the fastening assemblies on both sides of the support rod abut against the two outer side walls of the template.

[0021] The template fastening device and fastening method provided by the application, the template fastening device is fastened by the screw connection of the built-in rod and the outer sleeve, and then the fastening assembly is abutted with the template, so as to fasten the template, the length of the screw connection of the built-in rod and the outer sleeve is relatively long, so that the possibility of screw connection failure under stress is reduced, the strength of the connection is improved, the support rod can be used as a wrench for rotating the built-in rod, the torque for rotating the built-in rod is increased, the torque for rotating the built-in rod can be further increased by rotating the force adding rod, so as to tighten the built-in rod; at the same time, the two contact plates are abutted with the outer side wall of the template, so as to increase the contact area with the template; the multiple contact plates can be connected together by the reinforcing rod, so as to further improve the safety and stability of the fastened template. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the present application.

[0023] Figure 1 The structure diagram of the template fastening device provided by the embodiment of the application Figure 1 ;

[0024] Figure 2 The structure connection structure diagram of the contact plate in Figure 1 ;

[0025] Figure 3 The structure diagram of the template fastening device provided by the embodiment of the application Figure 2 ;

[0026] Figure 4 The structure diagram of the template fastening device provided by the embodiment of the application Figure 3 ;

[0027] Figure 5 The sectional structure diagram of the force adding rod in Figure 1 ;

[0028] Figure 6 The structure diagram of the force adding rod in Figure 1 ;

[0029] Figure 7 The flow chart of the template fastening method provided by the embodiment of the application.

[0030] Explanation of reference signs:

[0031] 1-template;

[0032] 100-outer sleeve;

[0033] 200-built-in rod; 210-adjusting head; 211-operating groove;

[0034] 300 - support rod; 310 - rod body; 311 - placing groove; 320 - force adding rod; 321 - groove; 330 - hinged shaft;

[0035] 400 - fastening assembly; 410 - contact plate; 411 - arc-shaped groove; 420 - adjusting member; 421 - adjusting screw; 422 - bearing; 430 - reinforcing rod.

[0036] The specific embodiments of the application have been shown and described in the above drawings and specification, it is to be understood that the application is not limited to the embodiments disclosed, but rather can be practiced with modification and alteration within the scope of the appended claims. Accordingly, the specification and drawings are to be regarded as illustrative in nature and not a restrictive. DETAILED DESCRIPTION

[0037] The illustrative examples set forth herein will vary from application to application and should not be construed as a limitation on the scope of the application, but merely as a description of illustrative embodiments. Accordingly, the terminology and phraseology employed above are for descriptive use and not limiting.

[0038] It should be noted that the terms "first", "second", and the like, do not denote any order, quantity, combination, or importance, but rather are used to nomenclature different components in the specification. Thus, "first" and "second" features could both be present (or lack) without the implementations involving these features being considered to be inconsistent or incoherent. The terms "plurality" and "a plurality", as well as "multiple" or "a multiple", mean "more than one", unless explicitly indicated to the contrary.

[0039] In this application, terms "mount", "connect", "connect", and like terms are understood to be the broadest possible terms as such terms are used in the specification, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature if the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature if the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature if the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the process of engineering construction, formwork engineering will be involved. Generally, after the reinforcement plate is tied, the formwork needs to be erected and fixed using fasteners, and then the fixed formwork is supported and reinforced using horizontal support rods.

[0042] At present, the fastener used when fixing the formwork is generally a through screw. The through screw passes through the formwork, and the two ends of the through screw are threadedly connected with the nut. The nut abuts against the formwork, thereby fixing the formwork.

[0043] When the amount of concrete pouring is large, the fastening force provided by the nut is not enough to fix the formwork, which easily causes the formwork to loosen and reduces the quality of concrete pouring. Meanwhile, the through screw for fastening is not a load-bearing reinforcement, and after the formwork is fixed, it will be poured into the concrete, thereby causing great waste of steel. In addition, when fixing the formwork, the fixing nut is generally manually tightened by hand, and when the amount of formwork is large, this construction method greatly reduces the installation progress, and during installation, the nut cannot be ensured to reach the best fastening value due to human factors.

[0044] In order to solve the above problems, the formwork fastening device and the fastening method provided by the present application are provided. The formwork fastening device is threadedly connected with the outer sleeve pipe through the built-in rod, and then abuts against the formwork through the fastening assembly, thereby fastening the formwork. The length of the thread connection between the built-in rod and the outer sleeve pipe is relatively long, thereby reducing the possibility of thread connection failure under stress, improving the connection strength, the support rod can be used as a wrench for rotating the built-in rod, increasing the torque for rotating the built-in rod, and further increasing the torque for rotating the built-in rod by rotating the force rod out, so as to tighten the built-in rod. At the same time, the two contact plates abut against the outer side wall of the formwork, so as to increase the contact area with the formwork. The reinforcing rod can be used to connect multiple contact plates together, thereby further improving the safety and stability of the fastened formwork.

[0045] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0046] Figure 1 Structure diagram of a template fastening device provided by an embodiment of the present application Figure 1 ; Figure 2 Structure diagram of a contact plate in an embodiment of the present application Figure 1 ; Figure 3 Structure diagram of a template fastening device provided by an embodiment of the present application Figure 2 ; Figure 4 Structure diagram of a template fastening device provided by an embodiment of the present application Figure 3 ;

[0047] Figure 5 Structure diagram of a force rod in an embodiment of the present application Figure 1 ; Figure 6 Structure diagram of a force rod in an embodiment of the present application Figure 1 ;

[0048] In one aspect, the present application provides a template fastening device, referring to Figure 1 , the template fastening device comprises an outer sleeve 100, an inner rod 200 and a fastening mechanism.

[0049] The outer sleeve 100 is located between two opposite templates 1, and the inner rod 200 is provided with two inner rods 200, which are respectively inserted into the templates 1 and are threadedly connected in the outer sleeve 100.

[0050] The fastening mechanism is provided with two fastening mechanisms, which comprise a support rod 300 and a fastening assembly 400. The support rod 300 is arranged on the inner rod 200, and the fastening mechanism is arranged on the support rod 300. The support rod 300 is used to rotate the inner rod 200, so that the fastening assembly 400 abuts against the outer side wall of the template 1, so as to fasten the template 1.

[0051] Specifically, when the template 1 is built to pour concrete, a plurality of fixing holes are pre-formed on the template 1, and the fixing holes on the two opposite templates 1 are one-to-one corresponding. The outer sleeve 100 is placed between the two opposite templates 1, and the two ends of the outer sleeve 100 are respectively connected with the two corresponding fixing holes, and the outer sleeve 100 is partially inserted into the fixing holes. When the inner rod 200 is threadedly connected with the outer sleeve 100, the contact between the inner rod 200 and the concrete is avoided. After the concrete is poured and solidified, the inner rod 200 and the fastening assembly 400 thereof are directly removed, so that the removal of the fastening device is completed, the subsequent shearing operation of the penetrating screw rod is reduced, the work efficiency is improved, and the inner rod 200 can be conveniently taken out, thereby reducing the waste of steel.

[0052] The inner wall of the outer sleeve 100 is threaded, and the built-in rod 200 is a threaded rod. When the built-in rod 200 is screwed into the outer sleeve 100, the connection length between the built-in rod 200 and the outer sleeve 100 is much greater than the connection length when directly using a through screw and a nut to fasten, thereby reducing the possibility of slippage between the built-in rod 200 and the outer sleeve 100, so as to improve the stability of the connection and ensure the quality of the concrete pouring.

[0053] The support rod 300 is fixed at the end of the built-in rod 200, and when the built-in rod 200 is installed, the support rod 300 is used as a force arm of a wrench, so that the built-in rod 200 can be adjusted without the need for additional tools such as a wrench; meanwhile, the fastening assembly 400 is installed on the support rod 300 to increase the position of the fastening assembly 400 and the built-in rod 200, and the support rod 300 also plays a supporting role.

[0054] The support rod 300 and the built-in rod 200 can be fixed by welding or other methods, which are not limited here as long as the fixing between the support rod 300 and the built-in rod 200 is achieved.

[0055] In some embodiments, referring to Figure 1 , the middle part of the support rod 300 is fixed on the built-in rod 200, and the same support rod 300 has two fastening assemblies 400, which are respectively arranged on the two sides of the built-in rod 200.

[0056] For example, the support rod 300 can be fixed at one end of the built-in rod 200, at this time, the fastening assembly 400 is set to 1, and the support rod 300 can also be set to a cross shape, a rice character shape, etc., and the built-in rod 200 is fixed at the middle part, and then the fastening assembly 400 is adaptively set to 4 and 8 corresponding to the shape. Of course, in other embodiments, the support rod 300 can also be set to other different shapes, which are not limited here.

[0057] In some embodiments, referring to Figure 1 , the fastening assembly 400 includes a contact plate 410 and an adjusting piece 420, the contact plate 410 is slidingly arranged on the support rod 300, and the sliding direction of the contact plate 410 is parallel to the length direction of the built-in rod 200, and the adjusting piece 420 connects the contact plate 410 to the support rod 300 to adjust the position of the contact plate 410.

[0058] Specifically, the contact plate 410 is located between the formwork 1 and the support rod 300, and the contact plate 410 abuts against the formwork 1, and the contact plate 410 is tightly abutted against the formwork 1 by adjusting the position of the contact plate 410, so as to avoid loosening of the formwork 1 and improve the stability of the formwork 1.

[0059] In some embodiments, with reference to Figure 1 and Figure 2 The adjusting member 420 comprises an adjusting screw 421 which is threaded through the support rod 300 and is rotationally connected to the contact plate 410 to abut the contact plate 410 against the template 1.

[0060] Specifically, the side of the contact plate 410 away from the template 1 is provided with a connecting groove, one end of the adjusting screw 421 extends into the connecting groove through the support rod 300, a bearing 422 is installed in the connecting groove, and the one end of the adjusting screw 421 is connected to the bearing 422, so that the adjusting screw 421 is rotationally connected to the contact plate 410. The adjusting screw 421 is threaded with the support rod 300, and by rotating the adjusting screw 421, the distance between the contact plate 410 and the support rod 300 can be adjusted, so that the contact plate 410 is tightly abutted against the template 1.

[0061] In some embodiments, with reference to Figure 1 and Figure 2 The adjusting screw 421 on the same contact plate 410 is provided as at least two, and the adjusting screw 421 is rotationally connected to the contact plate 410.

[0062] Both of the adjusting screws 421 are rotationally connected to the contact plate 410 through the support rod 300, and the common connection of the two adjusting screws 421 limits the possible rotation of the contact plate 410, so that the contact plate 410 can only move along the length direction of the adjusting screw 421. The two adjusting screws 421 not only play a limiting role, but also improve the stability of the contact plate 410 and reduce the sliding of the contact plate 410.

[0063] In some embodiments, with reference to Figure 2 , Figure 3 and Figure 4 The fastening assembly 400 further comprises a reinforcing rod 430, the side of the contact plate 410 close to the template 1 is provided with an arc-shaped groove 411, the reinforcing rod 430 is clamped between the arc-shaped groove 411 and the template 1, and the contact plates 410 of the plurality of fastening mechanisms are clamped with the same reinforcing rod 430.

[0064] The plurality of contact plates 410 clamp the same reinforcing rod 430 between the template 1 and the contact plate 410, so that the reinforcing rod 430 connects the plurality of contact plates 410 to form a whole, so that the template 1 fastening devices can be connected to each other, further improving the fastening and supporting ability of the device to the template 1 and reducing the looseness of the template 1.

[0065] Exemplarily, the length direction of the reinforcing rod 430 is arranged horizontally, and the plurality of contact plates 410 at the same horizontal height abut the reinforcing rod 430 against the outer side wall of the formwork 1, and the reinforcing rod 430 plays a role of horizontal support. The upper and lower ends of the support rod 300 are connected with the reinforcing rod 430, so that the two reinforcing rods 430 form two reinforcing ribs, so as to improve the support capacity of the formwork 1, reduce the looseness of the formwork 1, and improve the quality of concrete pouring.

[0066] Exemplarily, the length direction of the reinforcing rod 430 is arranged vertically, and at this time, the support rod 300 is arranged horizontally, and the plurality of contact plates 410 at the same vertical line fix the same reinforcing rod 430 on the outer side wall of the formwork 1, and the reinforcing rod 430 plays a role of vertical support.

[0067] In other embodiments, the length direction of the reinforcing rod 430 can be arranged in different directions according to actual needs, which is not limited here.

[0068] In some embodiments, referring to Figure 2 , Figure 5 and Figure 6 , the support rod 300 comprises a rod body 310 and a force rod 320. The rod body 310 is fixed on the built-in rod 200. A placing groove 311 is arranged on one side of the end of the rod body 310. The force rod 320 is placed in the placing groove 311. One end of the force rod 320 close to the end of the rod body 310 is hinged on the rod body 310. When the force rod 320 is turned out of the placing groove 311, the side wall of the force rod 320 abuts against the groove wall of the placing groove 311.

[0069] The middle part of the rod body 310 is fixed on the built-in rod 200. The rod body 310 and the built-in rod 200 can be fixed by welding or by bolts, which is not limited here.

[0070] Exemplarily, the force rod 320 is arranged as two. The two force rods 320 are connected to the two ends of the rod body 310 respectively. The two ends of the rod body 310 are both provided with the placing groove 311. The two sides of the placing groove 311 adjacent to each other are arranged as openings, so that the force rod 320 can be turned out of the placing groove 311 to the outside of the placing groove 311, so as to increase the length of the rod body 310. The two ends of the rod body 310 are both provided with a hinge shaft 330. The length direction of the hinge shaft 330 is parallel to the length direction of the built-in rod 200. One end of the force rod 320 close to the end of the rod body 310 is rotatably sleeved on the hinge shaft 330. After the force rod 320 is turned out, the force rod 320 abuts against the groove wall edge of the placing groove 311, so as to limit the continuous rotation of the force rod 320. The continuous rotation of the force rod 320 can drive the built-in rod 200 to rotate through the rod body 310, so as to increase the rotation arm of the built-in rod 200, and achieve the effect of saving labor.

[0071] With reference to Figure 5 The end of the force bar 320 close to the rod body 310 is chamfered, and the chamfer is arranged on the side of the force bar 320 close to the slot wall of the placing slot 311. The chamfer can be a rounded chamfer. The arrangement of the chamfer is beneficial to the turning of the force bar 320 out of the placing slot 311, and avoids the limitation of the end of the force bar 320. Meanwhile, the length of the placing slot 311 is greater than the length of the force bar 320, so that the corner of the force bar 320 can be turned out of the placing slot 311. In other embodiments, the end of the force bar 320 can also be arranged as a rounded corner, which is also convenient for the turning of the force bar 320 out.

[0072] When the formwork 1 is reinforced, the built-in rod 200 is threadedly connected to the end of the outer sleeve 100, and the built-in rod 200 is gradually rotated into the outer sleeve 100 by rotating the rod body 310, so that the contact plate 410 abuts against the formwork 1, and then the force bar 320 is turned out, the built-in rod 200 is rotated by holding the force bar 320, and the contact plate 410 is further abutted against the formwork 1, so as to achieve a good abutting effect. The length of the rod body 310 is increased by the force bar 320, which is more labor-saving and convenient when the built-in rod 200 is rotated, so as to abut the formwork 1 tightly.

[0073] In some embodiments, with reference to Figure 5 The force bar 320 is provided with a groove 321, and the position of the groove 321 corresponds to an adjusting screw 421.

[0074] Specifically, the placing slot 311 is internally provided with a protrusion matched with the groove 321. The groove 321 is a semicircular groove, the protrusion is a semicircular protrusion matched with the groove 321, and the adjusting screw 421 is arranged at the position corresponding to the protrusion. The groove 321 arranged on the force bar 320 can be used as the position held by the operator, so as to facilitate the holding of the operator and reduce the slippage. Meanwhile, the position of the protrusion increases the width of the connection of the adjusting screw 421, so as to strengthen the connection strength and reduce the possibility of damage of the connection between the adjusting screw 421 and the rod body 310.

[0075] In some embodiments, with reference to Figure 4 The end of the built-in rod 200 is provided with an adjusting head 210, and the adjusting head 210 is provided with an operation slot 211.

[0076] The end of the built-in rod 200 is integrally formed with the adjusting head 210, and the end face of the adjusting head 210 is provided with the operation slot 211. The operation slot 211 is an internal hexagonal slot, so as to facilitate the operator to use the electric or pneumatic tool to quickly rotate the built-in rod 200 into the outer sleeve 100, and then manually adjust the abutting degree. The adjusting screw 421 can also be adjusted by using the electric or pneumatic tool, so as to improve the construction efficiency.

[0077] Figure 7A flow chart of the template fastening method provided by the embodiments of the present application.

[0078] In another aspect, the present application provides a template fastening method using the template fastening device described above, further comprising the following steps:

[0079] S1, inserting the outer sleeve 100 from one side of the template 1 when the template 1 is fixed, until the outer sleeve 100 is inserted into the opposite template 1.

[0080] Reserve a fixing hole according to the fixed position of the template 1 on the wall to be poured, and push the outer sleeve 100 from one end of the fixing hole when the template 1 is fixed, until the other end is placed into the fixing hole or the fixing hole of the opposite template 1 is exposed, and both ends of the outer sleeve 100 are located in the fixing hole or a small amount of the template 1 is exposed.

[0081] S2, threadedly connecting two built-in rods 200 to both ends of the outer sleeve 100.

[0082] Then install the built-in rod 200, when installing the built-in rod 200, first threadedly connect the built-in rod 200 from both ends of the outer sleeve 100 into the outer sleeve 100, and then use an electric or pneumatic tool such as an electric screwdriver to rotate the built-in rod 200 into the outer sleeve 100 until the contact plate 410 is adjusted to the appropriate position. By rotating the built-in rod 200 into the outer sleeve 100 quickly and mechanically, the efficiency of construction is improved.

[0083] S3, holding the support rod 300 by hand, rotating the built-in rod 200, so that the fastening assembly 400 on both sides of the support rod 300 abuts against the two outer side walls of the template 1.

[0084] Specifically, when the template 1 is small and the support force after the contact plate 410 is fixed can meet the fastening requirement, directly hold the rod body 310 of the support rod 300 by hand, rotate the support rod 300, abut the contact plate 410 against the template 1, and unscrew the reinforcing rod 320, continue to rotate the built-in rod 200, so that the contact plate 410 is fastened with the template 1.

[0085] When the template 1 is large and the support force after the contact plate 410 is fixed cannot meet the fastening requirement, it is necessary to increase the reinforcing rod 430 outside the template 1. After rotating the built-in rod 200 to the appropriate position using an electric screwdriver, hold the support rod 300 by hand, adjust the position of the support rod 300, place the reinforcing rod 430 in the arc-shaped groove 411 of the contact plate 410, and use an electric screwdriver to rotate the adjusting screw 421 to abut the reinforcing rod 430 against the template 1.

[0086] The template fastening method provided in the application fastens the template 1 by screwing the built-in rod 200 with the outer sleeve 100, and then abutting the fastening assembly 400 with the template 1, so as to fasten the template 1. The length of the screwing of the built-in rod 200 with the outer sleeve 100 is relatively long, so that the possibility of screwing failure under stress is reduced, and the strength of the connection is improved. The support rod 300 can be used as a wrench for rotating the built-in rod 200, so as to increase the torque for rotating the built-in rod 200. The torque for rotating the built-in rod 200 can be further increased by unscrewing the force adding rod 320, so as to facilitate the screwing of the built-in rod 200. Meanwhile, the two contact plates 410 abut the outer side wall of the template 1, so as to increase the contact area with the template 1. The multiple contact plates 410 can be connected together by the reinforcing rod 430, so as to further improve the safety and stability of the template 1 after fastening.

[0087] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0088] It is to be understood that the application is not limited to the precise construction here described and as shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is to be defined by the claims appended hereto.

Claims

1. A template fastening device, characterized in that, The outer sleeve, the inner rod and the fastening mechanism are included; The outer sleeve is located between two opposite formworks, and the inner rod is provided with two inner rods which are respectively inserted into the formworks and are screwed in the outer sleeve; The fastening mechanism is provided with two fastening mechanisms, the fastening mechanism includes a support rod and a fastening component, the support rod is arranged on the inner rod, and the fastening component is arranged on the support rod, the support rod is used for rotating the inner rod, so that the fastening component abuts against the outer side wall of the formwork, and the formwork is fastened; The fastening component includes a contact plate and an adjusting piece, the contact plate is slidably arranged on the support rod, the sliding direction of the contact plate is parallel to the length direction of the inner rod, and the adjusting piece connects the contact plate to the support rod, so as to adjust the position of the contact plate; The adjusting piece includes an adjusting screw, the adjusting screw is screwed on the support rod, and the adjusting screw is rotatably connected to the contact plate, so that the contact plate abuts against the formwork; The fastening component further includes a reinforcing rod, an arc-shaped groove is formed on one side of the contact plate close to the formwork, the reinforcing rod is clamped between the arc-shaped groove and the formwork, and the contact plates of the plurality of fastening mechanisms are clamped with the same reinforcing rod; The support rod includes a rod body and a force rod, the rod body is fixed on the inner rod, one side of the end of the rod body is provided with a placing groove, the force rod is placed in the placing groove, and one end of the force rod close to the end of the rod body is hingedly connected to the rod body.

2. The form fastening device of claim 1, wherein The middle part of the support rod is fixed on the end of the inner rod, and the same support rod has two fastening components which are respectively arranged on the two sides of the inner rod.

3. The form fastening device according to claim 2, wherein The adjusting screw on the same contact plate is provided as at least two, and the adjusting screws are rotatably connected to the contact plate.

4. The form fastening device according to claim 3, wherein The force rod is provided with a groove, and the position of the groove corresponds to one adjusting screw.

5. The form tie-down device of any of claims 3-4, wherein, The end of the inner rod is provided with an adjusting head, and the adjusting head is provided with an operation groove.

6. A form fastening method characterized by, The formwork fastening device according to any one of claims 1-5 is used, and the following steps are further included: When the formwork is fixed, the outer sleeve is inserted from one side of the formwork until the outer sleeve is inserted into the opposite formwork; Two inner rods are respectively screwed into two ends of the outer sleeve; The support rod is held by hand, the inner rod is rotated, and the fastening components on the two support rods abut against the two opposite outer side walls of the formwork.

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