Formwork fastening device for civil construction

Abstract

The utility model relates to the technical field of building construction, in particular to a template fastening device for civil construction, which comprises transverse templates, two longitudinal devices are inserted into the left parts and the right parts of the outer surfaces of the transverse templates, and fixing devices are inserted into the two ends of the surfaces of the transverse templates. A plurality of fixing devices are arranged, and the middle parts of the outer surfaces of the plurality of fixing devices are in threaded connection with locking blocks; the fixing device comprises a mounting insertion cylinder. According to the template fastening device for civil construction, mounting and dismounting of the fixing device are simplified through pressing operation, splicing of different templates is adapted through an adjustable structure, a stable supporting frame is constructed through tight connection, a simple operation mode is adopted, and the template fastening device is simple in structure and convenient to use. The construction efficiency is improved, the fastening stability is enhanced, the universality and flexibility are improved, the construction difficulty is reduced, the concrete pouring quality is guaranteed, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a formwork fastening device for civil engineering construction. Background Technique

[0002] In the process of civil engineering construction, the formwork project is the core part of the concrete structure construction link. The stable erection of the formwork is directly related to the quality and precision of the concrete pouring and molding. In the past, the traditional formwork fastening methods mainly relied on wire binding, wooden wedge wedging, or simple screw-nut combinations. However, with the rapid development of the construction industry, the building scale has been continuously expanding, the building shapes have become increasingly complex, and the requirements for construction efficiency and quality have also been rising. These traditional fastening methods have gradually revealed many drawbacks and are difficult to meet the needs of modern construction. For example, wire binding not only has limited fastening strength, but also during the concrete pouring process, the wire is easily loosened due to stress, resulting in formwork displacement. The wooden wedge wedging method has high requirements for the experience of operators, and it is difficult to accurately control the wedging degree. Moreover, the wooden wedge is prone to deformation in a humid environment, affecting the fastening effect, and the installation and disassembly processes are time-consuming and laborious, seriously restricting the construction progress. Therefore, we have developed a new formwork fastening device for civil engineering construction. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a formwork fastening device for civil engineering construction, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A formwork fastening device for civil engineering construction includes transverse formworks. There are several transverse formworks. A number of first positioning holes are formed on the surfaces of the several transverse formworks. The several transverse formworks are longitudinally distributed in pairs. A longitudinal device is inserted jointly on the left and right outer surfaces of the several transverse formworks. There are two longitudinal devices, and the two longitudinal devices are symmetrically distributed left and right. A number of fixing pieces are inserted on the left and right sides of the two longitudinal devices. Fixing devices are inserted at both ends of the surface of the transverse formwork. There are several fixing devices. Locking blocks are threadedly connected to the middle parts of the outer surfaces of the several fixing devices.

[0006] The fixing device includes an installation insertion cylinder. A number of threads are engraved on the middle part of the outer surface of the installation insertion cylinder. Two side grooves are formed at the lower part of the outer surface of the installation insertion cylinder, and the two side grooves are symmetrically distributed left and right. A movable component is inserted through the middle part of the upper end of the installation insertion cylinder. Pull handles are fixedly connected jointly on the front and rear parts of the outer surface of the installation insertion cylinder. The installation insertion cylinder is inserted and installed at the bottom of one side of the transverse formwork.

[0007] Preferably, the movable component includes a connecting rod. A pressing head is fixedly connected to the upper end of the connecting rod. A round block is fixedly connected to the lower end of the connecting rod. An activity groove is formed in each of the left and right outer surfaces of the round block. An activity shaft rod is fixedly connected between the front groove wall and the rear groove wall of the activity groove. Short abutting plates are movably sleeved on the outer surface of the activity shaft rod. A compression spring is fixedly connected to the lower end of the round block. A rubber head is fixedly connected to the middle of the lower end of the compression spring. The connecting rod is inserted through an installation insertion cylinder.

[0008] By adopting the above technical solution: The pressing head facilitates the construction personnel to apply an external force to operate the movable component. The connecting rod transmits the acting force of the pressing head. The round block drives the short abutting plate to act. The activity groove cooperates with the activity shaft rod to enable the short abutting plate to rotate flexibly. After the short abutting plate extends out, it supports the bottom of the transverse template, enhancing the fixing effect. The compression spring provides buffering and resetting forces. The rubber head fixes the compression spring and increases the contact stability with the bottom of the installation insertion cylinder. Overall, it makes the installation and disassembly of the fixing device more convenient and improves the connection stability of the template.

[0009] Preferably, the longitudinal device includes a longitudinal template. First adjustment grooves are formed in each of the front and rear right ends of the longitudinal template. A plurality of second positioning holes are formed in the upper end of the longitudinal template. A first side block and a second side block are respectively fixedly connected to the front and rear right ends of the longitudinal template. The first side block and the second side block are both located inside the two first adjustment grooves. Second adjustment grooves are formed in the upper ends of both the first side block and the second side block. Vertical rods are inserted into the second adjustment grooves. A plurality of inner insertion slots are formed in the right outer surfaces of the vertical rods. Outer insertion slots are formed in the right ends of both the first side block and the second side block. The longitudinal template is inserted into the right outer side of the transverse template.

[0010] By adopting the above technical solution: The first adjustment grooves are used to adjust the relative positions of the longitudinal template and the transverse template to adapt to different-sized template combinations. The second positioning holes cooperate with the fixing device to firmly connect the transverse and longitudinal templates. The first side block and the second side block install the vertical rods and participate in the overall connection. The second adjustment grooves enable the vertical rods to be adjusted flexibly in angle.

[0011] Preferably, the position dimensions of the two vertical rods on the right are respectively adapted to the position dimensions of the second adjustment grooves one by one. The position dimensions of the plurality of inner insertion slots and the outer insertion slots are both adapted to the position dimensions of the fixing parts. The vertical rods are movably connected to the first side block and the second side block through the second adjustment grooves, and the vertical rods can move in the second adjustment grooves.

[0012] By adopting the above technical solution: The adapted position dimensions ensure that the vertical rods can be accurately installed in the second adjustment grooves and facilitate the fixing parts to be accurately inserted into the inner insertion slots and the outer insertion slots to achieve a reliable connection.

[0013] Preferably, the two No. 1 adjustment grooves are both in an I-shaped structure, and the position dimensions of a plurality of the No. 2 positioning holes correspond to the position dimensions of the mounting insert.

[0014] By adopting the above technical solution: the I-shaped No. 1 adjustment groove can closely cooperate with the corresponding structure on the horizontal template, providing better guidance and limiting effect when adjusting the position of the longitudinal template, ensuring the adjustment accuracy.

[0015] Preferably, the length of the two short abutment plates is smaller than the inner groove length of the two side grooves, the short abutment plates are movably connected to the round blocks through movable shafts, and the upper sides of the short abutment plates are tightly attached to the bottom of the transverse template, and the compression springs are movably connected to the lower part of the inner wall of the mounting sleeve.

[0016] By adopting the above technical solution: the length of the short abutment plate is smaller than the length of the inner groove of the side groove, so that it can flexibly extend and retract in the side groove, and is connected to the round block through a movable shaft rod to realize the rotation and extension of the short abutment plate, close to the bottom of the horizontal template to provide effective support, and the compression spring is reasonably installed in the installation plug-in tube to ensure its buffering and reset functions to function normally, thereby improving the working reliability of the fixing device.

[0017] Preferably, the locking block is threadedly connected to the middle part of the outer surface of the mounting sleeve, the locking block is tightly attached to one end of the surface of the longitudinal template, one end of the fixing piece passes through the outer slot and inner slot of the left longitudinal device and the inner slot and outer slot of the right longitudinal device in sequence, and there is an interference fit between the fixing piece and the outer slot and the inner slot.

[0018] By adopting the above technical solution: the locking block is threadedly connected to the installation sleeve and is close to the longitudinal formwork, further tightening the connection between the transverse and longitudinal formworks, and the fixing parts pass through the slots of the longitudinal devices on both sides and are interference fit, so that the two longitudinal devices are tightly connected into a stable whole, greatly enhancing the structural strength and stability of the formwork fastening device to resist external forces during construction.

[0019] Preferably, the installation insert is a hollow cylindrical structure, and the position size of the installation insert is compatible with the position size of a plurality of No. 1 positioning holes.

[0020] By adopting the above technical solution: the hollow cylindrical structure is convenient for the installation and operation of the movable components, and the size that matches the No. 1 positioning hole ensures that the installation plug can be accurately inserted into the horizontal template.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. In the present utility model, the movable component operated by pressing makes the installation and disassembly of the fixing device more convenient. Construction workers can complete the operation without complex tools, greatly shortening the construction time. The adjustable structure design of the longitudinal device can quickly adapt to the splicing requirements of templates of different sizes, reducing the time waste of replacing the device due to different template specifications during the construction process, and overall improving the construction efficiency.

[0023] 2. In the present utility model, by the short abutting plate extending out of the side groove and closely adhering to the bottom of the transverse template, the contact area and friction force between the fixing device and the transverse template are increased, effectively resisting the lateral pressure generated during concrete pouring, preventing the template from displacement or deformation. The interference fit between the fixing piece and the outer slot and the inner slot, as well as the further fastening of the longitudinal template by the locking block, constructs a stable template support framework, ensuring the stability of the template during construction and guaranteeing the quality of the concrete pouring and forming.

[0024] 3. In the present utility model, the position adjustment can be realized by the cooperation of the first adjustment groove of the longitudinal template and the corresponding convex structure on the transverse template to adapt to different-sized template combinations. At the same time, the vertical rod can move flexibly in the second adjustment groove, and construction workers can adjust its angle according to the actual construction situation, enabling the template fastening device to be applicable to diverse construction scenarios, reducing the dependence on template fastening devices of different specifications, and lowering the construction cost.

[0025] 4. In the present utility model, operations such as inserting the pull handle into the installation cylinder and pressing the pressing head to control the movable component reduce the operation difficulty of construction workers, reduce construction problems caused by improper operation, and improve the controllability of construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of a template fastening device for civil engineering construction of the present utility model;

[0027] Figure 2 is the structural schematic diagram of the longitudinal device of a template fastening device for civil engineering construction of the present utility model;

[0028] Figure 3 is the structural schematic diagram of the fixing device of a template fastening device for civil engineering construction of the present utility model;

[0029] Figure 4 is the structural schematic diagram of the movable component of a template fastening device for civil engineering construction of the present utility model;

[0030] Figure 5 is the detailed enlarged structural schematic diagram at A of a template fastening device for civil engineering construction of the present utility model;

[0031] Figure 6This is a schematic diagram of the enlarged structure details at position B of a formwork fastening device for civil engineering construction of the present utility model.

[0032] In the figure: 1, transverse formwork; 2, longitudinal device; 3, fixing device; 4, first positioning hole; 5, fixing piece; 6, locking block; 21, longitudinal formwork; 22, second positioning hole; 23, first adjustment slot; 24, first side block; 25, vertical rod; 26, inner slot; 27, second side block; 28, outer slot; 29, second adjustment slot; 31, pull handle; 32, movable component; 33, thread; 34, side slot; 35, installation insertion cylinder; 321, connecting rod; 322, pressing head; 323, round block; 324, short abutting plate; 325, movable slot; 326, movable shaft rod; 327, compression spring; 328, rubber head. Specific embodiments

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] Please refer to Figures 1-6 , the present utility model provides a technical solution:

[0037] A formwork fastening device for civil engineering construction, including transverse formworks 1. There are several transverse formworks 1. A number of first positioning holes 4 are formed on the surfaces of the several transverse formworks 1. The several transverse formworks 1 are longitudinally distributed in pairs. A longitudinal device 2 is inserted jointly on the left and right outer surfaces of the several transverse formworks 1. There are two longitudinal devices 2, and the two longitudinal devices 2 are symmetrically distributed left and right. A number of fixing pieces 5 are inserted on the left and right sides of the two longitudinal devices 2. Fixing devices 3 are inserted at both ends of the surface of the transverse formwork 1. There are several fixing devices 3. Locking blocks 6 are threadedly connected to the middle parts of the outer surfaces of the several fixing devices 3;

[0038] The locking block 6 is threadedly connected to the middle part of the outer surface of the installation insertion cylinder 35. The locking block 6 is closely attached to one end of the surface of the longitudinal formwork 21. One end of the fixing piece 5 sequentially passes through the outer slot 28, inner slot 26 of the left longitudinal device 2, and the inner slot 26, outer slot 28 of the right longitudinal device 2, and an interference fit is formed between the fixing piece 5 and the outer slot 28, inner slot 26.

[0039] In this embodiment, the fixing device 3 includes an installation insertion cylinder 35. A number of threads 33 are engraved on the middle part of the outer surface of the installation insertion cylinder 35. Two side slots 34 are formed in the lower part of the outer surface of the installation insertion cylinder 35, and the two side slots 34 are symmetrically distributed left and right. A movable component 32 is inserted and connected to the middle part of the upper end of the installation insertion cylinder 35. Pull handles 31 are fixedly connected jointly on the front and rear outer surfaces of the installation insertion cylinder 35. The installation insertion cylinder 35 is inserted and installed at the bottom of one side of the transverse formwork 1. The movable component 32 includes a connecting rod 321. A pressing head 322 is fixedly connected to the upper end of the connecting rod 321. A round block 323 is fixedly connected to the lower end of the connecting rod 321. Movable slots 325 are formed on the left and right outer surfaces of the round block 323. A movable shaft rod 326 is fixedly connected jointly between the front and rear slot walls of the movable slot 325. Short abutting plates 324 are movably sleeved on the outer surfaces of the movable shaft rods 326. A compression spring 327 is fixedly connected to the lower end of the round block 323. A rubber head 328 is fixedly connected to the middle part of the lower end of the compression spring 327. The connecting rod 321 is inserted and connected in the installation insertion cylinder 35. The lengths of the two short abutting plates 324 are less than the inner slot lengths of the two side slots 34. The short abutting plates 324 are movably connected to the round block 323 through the movable shaft rods 326, and the upper sides of the short abutting plates 324 are closely attached to the bottom of the transverse formwork 1. The compression spring 327 is movably connected to the lower part of the inner wall of the installation insertion cylinder 35. The installation insertion cylinder 35 is of a hollow cylindrical structure, and the position dimensions of the installation insertion cylinder 35 are adapted to the position dimensions of the number of first positioning holes 4.

[0040] Through the above solution: In the formwork fastening device for civil engineering construction, the fixing device 3 plays a key fastening role. The installation insertion cylinder 35 is of a hollow cylindrical structure, and its position dimensions are adapted to a number of first positioning holes 4 on the surface of the transverse formwork 1. With the help of the pull handle 31, the construction worker can conveniently insert and install the installation insertion cylinder 35 at the bottom of the transverse formwork 1. A number of threads 33 are engraved in the middle of the outer surface of the installation insertion cylinder 35 for threaded connection with the locking block 6 to further fasten the overall structure. The movable component 32 is installed in the middle of the upper end of the installation insertion cylinder 35. When the construction worker presses down the pressing head 322, the connecting rod 321 fixedly connected to it drives the lower circular block 323 to move downward. Activity grooves 325 are formed in both the left and right parts of the outer surface of the circular block 323. The short abutting plate 324 movably sleeved on the movable shaft rod 326 in the activity groove 325 can rotate in the activity groove 325 through the movable shaft rod 326 and extend out of the side groove 34 during the downward movement of the circular block 323 because the length of the short abutting plate 324 is less than the inner groove length of the side groove 34, and then closely adheres to the bottom of the transverse formwork 1, playing a role in supporting and stabilizing the transverse formwork 1. The compression spring 327 fixedly connected to the lower end of the circular block 323 has a rubber head 328 fixedly connected to the middle of its lower end. The rubber head 328 is fixed to the bottom of the installation insertion cylinder 35. The compression spring 327 plays a buffering and resetting role during the operation of the movable component 32. When the pressing head 322 is no longer stressed, the compression spring 327 can make the movable component 32 return to the initial position. First, through the movable component 32 operated by pressing, the installation and disassembly process of the fixing device 3 becomes more convenient. The construction worker can complete the operation without complex tools, greatly improving the construction efficiency. Second, the design that the short abutting plate 324 extends out of the side groove 34 and closely adheres to the bottom of the transverse formwork 1 increases the contact area and friction between the fixing device 3 and the transverse formwork 1, effectively improving the stability of formwork fastening, being able to better resist the lateral pressure generated during concrete pouring, ensuring that the formwork will not displace or deform during construction, and thus guaranteeing the quality of concrete pouring and forming.

[0041] In this embodiment, the longitudinal device 2 includes a longitudinal template 21. A first adjustment groove 23 is formed at the front and rear right ends of the longitudinal template 21. A plurality of second positioning holes 22 are formed at the upper end of the longitudinal template 21. A first side block 24 and a second side block 27 are fixedly connected to the front and rear right ends of the longitudinal template 21 respectively. Both the first side block 24 and the second side block 27 are located inside the two first adjustment grooves 23. A second adjustment groove 29 is formed at the upper end of the first side block 24 and the upper end of the second side block 27. A vertical rod 25 is inserted into each of the second adjustment grooves 29. A plurality of inner slots 26 are formed on the right outer surface of each vertical rod 25. An outer slot 28 is formed at the right end of the first side block 24 and the right end of the second side block 27. The longitudinal template 21 is inserted into the right outer side of the transverse template 1. The position dimensions of the two right-side vertical rods 25 respectively match the position dimensions of the second adjustment grooves 29 one by one. The position dimensions of the plurality of inner slots 26 and the position dimensions of the outer slots 28 both match the position dimensions of the fixing member 5. The vertical rod 25 is movably connected to the first side block 24 and the second side block 27 through the second adjustment groove 29, and the vertical rod 25 can move within the second adjustment groove 29. Both of the two first adjustment grooves 23 are in an I-shaped structure. The position dimensions of the plurality of second positioning holes 22 correspond to the position dimensions of the mounting insertion cylinder 35.

[0042] Through the above solution: In the formwork fastening device for civil engineering construction, the longitudinal device 2 plays an important role in support and connection. The longitudinal formwork 21 is inserted into the right outer part of the transverse formwork 1. The first adjustment slots 23 opened at the front and rear of its right end are in an I-shaped structure. This unique structure can cooperate with the corresponding convex structure on the transverse formwork 1. Construction workers can adjust the position of the longitudinal formwork 21 along the side of the transverse formwork 1 through the first adjustment slots 23 to adapt to the actual construction requirements of formwork combinations of different sizes. A number of second positioning holes 22 at the upper end of the longitudinal formwork 21 have position dimensions corresponding to the installation insertion cylinders 35. When working in cooperation with the fixing device 3, it can further stabilize the connection between the transverse formwork 1 and the longitudinal formwork 21. The first side block 24 and the second side block 27 fixedly connected to the front and rear of the right end of the longitudinal formwork 21 are located inside the two first adjustment slots 23. A vertical rod 25 is inserted into the second adjustment slot 29 opened on them. The vertical rod 25 is adapted to the position dimensions of the second adjustment slot 29 and can move flexibly inside the second adjustment slot 29. This enables construction workers to flexibly adjust the angle of the vertical rod 25 according to the actual construction situation. A number of inner insertion slots 26 on the right outer surface of the vertical rod 25 and the outer insertion slots 28 at the right ends of the first side block 24 and the second side block 27 all have position dimensions adapted to the fixing member 5. During construction, the fixing member 5 sequentially passes through the outer insertion slot 28, the inner insertion slot 26 of the left longitudinal device 2, and the inner insertion slot 26, the outer insertion slot 28 of the right longitudinal device 2, thereby firmly connecting the two longitudinal devices 2 together to construct a stable formwork support framework. By setting the longitudinal device 2, on the one hand, its adjustable structural design greatly improves the versatility and flexibility of the formwork fastening device, can adapt to diverse construction scenarios and the splicing requirements of formwork of different sizes, reduces the dependence on formwork fastening devices of different specifications during the construction process, and lowers the construction cost. On the other hand, through the cooperative connection method of the vertical rod 25 and the fixing member 5, the stability of the entire formwork fastening structure is enhanced. During the concrete pouring process, it can better withstand the lateral pressure and other external forces generated by the concrete, effectively prevent problems such as displacement and deformation of the formwork, ensure the smooth progress of the concrete pouring work, and then improve the quality of the concrete pouring molding, ensuring the construction quality and safety of civil engineering.

[0043] It should be noted that the present utility model is a formwork fastening device for civil engineering construction. First, a plurality of transverse formworks 1 are longitudinally arranged in pairs. A plurality of first positioning holes 4 on the surface of the transverse formwork 1 are used for subsequent installation of the fixing device 3. The installation insertion cylinder 35 of the fixing device 3 is of a hollow cylindrical structure, and its position and size are adapted to the first positioning holes 4. The installation insertion cylinder 35 is inserted and installed at the bottom of the transverse formwork 1 through the pull handle 31. A thread 33 is engraved in the middle of the outer surface of the installation insertion cylinder 35 for threaded connection with the locking block 6. The connecting rod 321 of the movable assembly 32 is inserted and connected in the installation insertion cylinder 35. The pressing head 322 at the upper end of the connecting rod 321 is convenient for construction workers to operate. Pressing down the pressing head 322 drives the connecting rod 321 and the lower end circular block 323 to move downward. The short abutting plate 324 on the outer surface of the circular block 323 rotates in the movable groove 325 through the movable shaft rod 326. Since the length of the short abutting plate 324 is less than the inner groove length of the side groove 34, the short abutting plate 324 can extend out of the side groove 34 and closely adhere to the bottom of the transverse formwork 1. The compression spring 327 plays a role in buffering and resetting. The rubber head 328 at its lower end is fixed to the bottom of the installation insertion cylinder 35. The two longitudinal devices 2 are symmetrically distributed left and right. The longitudinal formwork 21 is slidably connected to the corresponding convex structure on the transverse formwork 1 through the first adjustment groove 23 and can be adjusted in position along the side of the transverse formwork 1 to meet the requirements of different-sized formwork combinations. The vertical rods 25 are inserted into the second adjustment grooves 29 on the first side block 24 and the second side block 27 at the front and rear of the right end of the longitudinal formwork 21. The vertical rods 25 can rotate in the second adjustment grooves 29 to facilitate the adjustment of the insertion angle of the fixing member 5. One end of a plurality of fixing members 5 sequentially passes through the outer insertion slot 28, the inner insertion slot 26 of the left longitudinal device 2, the inner insertion slot 26, and the outer insertion slot 28 of the right longitudinal device 2. And there is an interference fit between the fixing member 5 and the outer insertion slot 28 and the inner insertion slot 26 to achieve the stable connection of the two longitudinal devices 2. Finally, the locking block 6 is screwed tightly on the installation insertion cylinder 35 and closely adheres to the surface of the longitudinal formwork 21. The anti-slip lines on the inner surface of the locking block 6 increase the friction with the longitudinal formwork 21 and further improve the fastening effect, thereby completing the installation and fastening work of the entire formwork fastening device and ensuring the stability of the formwork in civil engineering construction.

[0044] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A formwork fastening device for civil engineering construction, comprising a transverse formwork (1), characterized in that: The transverse templates (1) are provided in plurality, and the surfaces of the transverse templates (1) are provided with a plurality of No. 1 positioning holes (4). The transverse templates (1) are longitudinally distributed in pairs, and the left and right parts of the outer surfaces of the transverse templates (1) are jointly plugged with longitudinal devices (2). Two longitudinal devices (2) are provided, and the two longitudinal devices (2) are symmetrically distributed. The left and right sides of the two longitudinal devices (2) are plugged with a plurality of fixing members (5). The surfaces of the transverse templates (1) are both plugged with fixing devices (3). The fixing devices (3) are provided in plurality, and the middle parts of the outer surfaces of the fixing devices (3) are threadedly connected with locking blocks (6); The fixing device (3) comprises a mounting insert (35), a plurality of threads (33) are engraved in the middle of the outer surface of the mounting insert (35), two side grooves (34) are opened in the lower part of the outer surface of the mounting insert (35), and the two side grooves (34) are symmetrically distributed on the left and right, a movable component (32) is inserted and connected in the middle of the upper end of the mounting insert (35), a pull handle (31) is fixedly connected to the front and rear of the outer surface of the mounting insert (35), and the mounting insert (35) is plugged and installed at the bottom of the horizontal template (1) on one side.

2. A civil engineering construction formwork fastening device according to claim 1, characterized in that: The movable assembly (32) comprises a connecting rod (321), the upper end of which is fixedly connected to a pressing head (322), the lower end of which is fixedly connected to a round block (323), the left and right outer surfaces of the round block (323) are both provided with movable grooves (325), a movable shaft rod (326) is fixedly connected between the front groove wall and the rear groove wall of the movable groove (325), the outer surface of the movable shaft rod (326) is movably sleeved with a short abutment plate (324), the lower end of the round block (323) is fixedly connected to a compression spring (327), the middle portion of the lower end of the compression spring (327) is fixedly connected to a rubber head (328), and the connecting rod (321) is inserted and connected in the installation plug-in tube (35).

3. A civil engineering construction formwork fastening device according to claim 1, characterized in that: The longitudinal device (2) comprises a longitudinal template (21), the front right end and the rear right end of the longitudinal template (21) are both provided with a No. 1 adjustment slot (23), the upper end of the longitudinal template (21) is provided with a plurality of No. 2 positioning holes (22), the front right end and the rear right end of the longitudinal template (21) are respectively fixedly connected with a No. 1 side block (24) and a No. 2 side block (27), the No. 1 side block (24) and the No. 2 side block (27) are both located in the two No. 1 adjustment slots (23). 3), the upper ends of the first side block (24) and the second side block (27) are each provided with a second adjustment groove (29), a vertical rod (25) is inserted into the second adjustment groove (29), a plurality of inner slots (26) are each provided on the right portion of the outer surface of the vertical rod (25), the right ends of the first side block (24) and the second side block (27) are each provided with an outer slot (28), and the longitudinal template (21) is inserted into the outer right portion of the transverse template (1).

4. A civil engineering construction formwork fastening device according to claim 3, characterized in that: The position dimensions of the two vertical rods (25) on the right side are respectively matched with the position dimensions of the second adjustment slot (29), and the position dimensions of the plurality of inner slots (26) and the position dimensions of the outer slots (28) are matched with the position dimensions of the fixing member (5). The vertical rod (25) is movably connected to the first side block (24) and the second side block (27) through the second adjustment slot (29), and the vertical rod (25) can move in the second adjustment slot (29).

5. A civil engineering construction formwork fastening device according to claim 3, characterized in that: The two No. 1 adjustment slots (23) are both in an I-shaped structure, and the position dimensions of the plurality of No. 2 positioning holes (22) correspond to the position dimensions of the installation insert (35).

6. A civil engineering construction formwork fastening device according to claim 2, characterized in that: The length of the two short abutment plates (324) is less than the inner groove length of the two side grooves (34); the short abutment plates (324) are movably connected to the round block (323) via a movable shaft (326); the upper side of the short abutment plates (324) is tightly attached to the bottom of the transverse template (1); and the compression spring (327) is movably connected to the lower part of the inner wall of the mounting plug (35).

7. A civil engineering construction formwork fastening device according to claim 1, characterized in that: The locking block (6) is threadedly connected to the middle part of the outer surface of the installation plug (35), and the locking block (6) is tightly attached to one end of the surface of the longitudinal template (21). One end of the fixing member (5) passes through the outer slot (28) and the inner slot (26) of the left longitudinal device (2) and the inner slot (26) and the outer slot (28) of the right longitudinal device (2) in sequence, and the fixing member (5) is in interference fit with the outer slot (28) and the inner slot (26).

8. A civil engineering construction formwork fastening device according to claim 1, characterized in that: The installation insert (35) is in the form of a hollow cylindrical structure, and the position size of the installation insert (35) is compatible with the position size of a plurality of No. 1 positioning holes (4).

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