Formwork structure for concrete wall construction

Abstract

The invention discloses a formwork structure for concrete wall construction, and relates to the technical field of building construction, the formwork structure comprises two formworks and a plurality of opposite-pull screw rod assemblies, the outer side face of each formwork is provided with a plurality of steel back ridges, each opposite-pull screw rod assembly comprises a screw rod, the screw rod penetrates through the two formworks and the two steel back ridges at the same time, and the two steel back ridges are arranged on the opposite-pull screw rod assemblies. External threads are arranged at the two ends of the screw rod respectively, the spiral directions of the external threads at the two ends of the screw rod are opposite, nuts are arranged at the two ends of the screw rod respectively, and the spiral directions of the internal threads of the two nuts at the two ends of the screw rod are opposite; guide assemblies are arranged on the sides, away from the formwork, of the steel back edges, the guide assemblies and the nuts are arranged in a one-to-one correspondence mode, and the guide assemblies are used for preventing the nuts from rotating around the center lines of the nuts. The two nuts can move oppositely at the same time, and therefore the tightening efficiency of the two nuts can be improved.

Description

Technical Field

[0001] The present application relates to the field of building construction technology, and in particular to a formwork structure used for concrete wall construction. Background Art

[0002] The construction method of building walls is divided into infill walls and cast-in-place walls according to different construction methods. The concrete pouring operation of cast-in-place walls requires the support of formwork structures.

[0003] The template structure in the prior art includes a template, a steel back rib, a screw sleeve, and a tension bolt assembly. When the template structure is supported, the screw of the tension screw assembly is passed through the template, the screw sleeve, and the steel back rib mounted on the outer side of the template at the same time, and then the two nuts of the tension screw assembly are tightened from both ends of the tension screw. Since the length reserved at both ends of the screw is relatively long, the nuts need to be rotated more times during the tightening process, and the operation efficiency is low. Summary of the invention

[0004] In order to improve the problem of low efficiency in the nut tightening process of the tension screw assembly during the support of the formwork structure of the concrete wall, the present application provides a formwork structure for concrete wall construction.

[0005] The template structure for concrete wall construction provided in this application adopts the following technical solution: A formwork structure for concrete wall construction includes two formworks and a plurality of tension screw rod assemblies, wherein the outer side surface of each formwork is provided with a plurality of steel back ribs, and the tension screw rod assembly includes a screw rod, which passes through the two formworks and the two steel back ribs at the same time, and the two ends of the screw rod are respectively provided with external threads, and the spiral directions of the external threads at the two ends of the screw rod are opposite, and the two ends of the screw rod are respectively provided with nuts, and the spiral directions of the internal threads of the two nuts at the two ends of the screw rod are opposite; a guide assembly is provided on the side of the steel back rib away from the formwork, and the guide assembly is arranged in a one-to-one correspondence with the nut, and the guide assembly is used to prevent the nut from rotating around its own center line.

[0006] By adopting the above technical solution, when installing the formwork structure, two formworks are installed in the area to be poured on the wall, and then the steel back ribs are installed on the outer side of the formwork, and then the screws of the tension screw assembly are passed through the formwork and the steel back ribs, and then the two nuts are respectively spirally installed on both ends of the screw, and the nuts are positioned using the guide assembly, and then the screw is rotated so that the screw spiral drives the nut to move along the axial direction of the screw. Since the spiral directions of the external threads at the ends of the screw are opposite, the two nuts can move toward each other at the same time, which is conducive to improving the tightening efficiency of the two nuts; and the two nuts are tightened at the same time, which is conducive to ensuring the reliability of the locking state. On the other hand, by using the guide assembly to position the nut, there is no need to position the screw, and the locking process is more convenient.

[0007] Optionally, the guide assembly includes a mounting seat and a limit member, the limit member is used to prevent the nut from rotating around its own center line, the mounting seat is connected to the steel back rib, the mounting seat is provided with a limit member, the mounting seat includes a base plate and two side plates, a groove area adapted to the steel back rib is formed between the base plate and the two side plates, a pin is commonly penetrated between the two side plates, the pin passes through a through hole reserved on the steel back rib, the through hole on the steel back rib is a waist-shaped hole, and the length direction of the waist-shaped hole is arranged along the length direction of the steel back rib; the limit member is installed on the base plate, and the limit member abuts against the outer side surface of the nut.

[0008] By adopting the above technical solution, the mounting seat is detachably mounted on the steel back rib by means of a latch, so that the mounting seat can be assembled and disassembled more quickly. In addition, the through hole on the steel back rib for the latch to be inserted is set as a waist-shaped hole, which can make the guide assembly move and adjust relative to the steel back rib, so that the position of the guide assembly can better adapt to the distance error between the screw rod and the guide assembly.

[0009] Optionally, the limiting member includes a guide sleeve, the inner circumference of the guide sleeve is adapted to the outer circumference of the nut, the outer circumference of the nut is a prismatic surface, and a connecting member is connected between the guide sleeve and the mounting seat.

[0010] By adopting the above technical solution, the outer peripheral surface of the nut is a prismatic surface, and the guide sleeve is sleeved with the nut, which can limit the rotation of the nut around its own center line, so that the screw can drive the nut to reciprocate in the guide sleeve.

[0011] Optionally, the guide sleeve is provided with a conical spring, the small end of the conical spring is fixedly connected to the guide sleeve, the large end of the conical spring faces the steel back rib, and the conical spring is in a compressed and deformed state.

[0012] By adopting the above technical solution, the elastic force of the conical spring can keep the position of the guide sleeve stable.

[0013] Optionally, a prismatic head is provided at one end of the screw rod, and the prismatic head is connected to a socket wrench.

[0014] By adopting the above technical solution, the prismatic head of the screw can be connected with a socket wrench. Under the premise that the nut is positioned, the screw can be rotated using a ratchet wrench or a pneumatic wrench, making the tightening process of the nut more efficient.

[0015] Optionally, one of the two guide sleeves closer to the prismatic head is a first guide sleeve, and the other is a second guide sleeve. Both ends of the first guide sleeve are through-connected, and the end of the second guide sleeve away from the prismatic head has an end wall, and the end wall is used to limit the axial position of the screw.

[0016] By adopting the above technical solution, the end wall of the second guide sleeve can limit the axial position of the screw, so that the axial position of the screw is relatively stable when the staff rotates the screw from the end of the screw away from the limiting gasket.

[0017] Optionally, the portion of the screw rod between the two external threads is an optical axis section, the diameter of the optical axis section is larger than the major diameter of the external thread, and a step surface is formed between the optical axis section and the external thread; the steel back rib includes two webs and connecting ribs connecting the two webs, and the two long sides of the webs are respectively provided with reinforcing folded edges, and the reinforcing folded edges are bent toward the center direction of the steel back rib; the external thread portion of one end of the screw rod is sleeved with a limiting gasket, and the limiting gasket has an inner hole, and the inner diameter of the limiting gasket is larger than the major diameter of the external thread and smaller than the outer diameter of the optical axis section, and the limiting gasket is located between the two webs of the steel back rib, and the limiting gasket is located between the step surface and the reinforcing folded edge of the steel back rib away from the template.

[0018] By adopting the above technical solution, when the limiting gasket is sleeved on the external threaded part at one end of the screw, the two reinforced folded edges of the steel back rib can prevent the limiting gasket from leaving the inner area of ​​the steel back rib, so that the limiting gasket is limited. Therefore, the limiting gasket can limit the axial position of the screw, so that the axial position of the screw is relatively stable when the staff rotates the screw from the end of the screw away from the limiting gasket.

[0019] Optionally, a threading hole is provided at the end of the screw rod, and the threading hole is arranged along the radial direction of the screw rod, and each screw rod of the same template is threaded with a metal wire through the threading hole.

[0020] By adopting the above technical solution, the metal wire passes through the threading holes of each screw rod at the same time, so that the metal wire can hinder the screw rod from rotating around its own axis, which is helpful to reduce the relative looseness between the screw rod and the nut.

[0021] Optionally, an insertion seam is provided on the end face of the screw rod, and the insertion seam passes through the threading hole; the depth direction of the insertion seam is inclined relative to the axis of the screw rod.

[0022] By adopting the above technical solution, the metal wire can enter the threading hole from the insertion seam, so that the metal wire does not need to pass through each threading hole in sequence through the end of one end, making the connection process between the metal wire and the screw more efficient and quick.

[0023] Optionally, each end of the metal wire is wound and connected to one of the screw rods.

[0024] By adopting the above technical solution, each end of the metal wire is wound around one of the screw rods, which can keep the state of the metal wire stable and reduce the situation where the metal wire comes out of the insertion seam.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the process of supporting the formwork structure, the guide assembly is used to position the nut, and then the screw is rotated so that the screw spiral drives the nut to move along the axial direction of the screw. Since the spiral directions of the external threads at the ends of the screw are opposite, the two nuts can move toward each other at the same time, which is beneficial to improve the tightening efficiency of the two nuts.

[0026] 2. The prismatic head of the screw can be connected to a socket wrench. On the premise that the nut is positioned, the screw can be rotated using a ratchet wrench or pneumatic wrench to make the tightening process of the nut more efficient.

[0027] 3. The metal wire passes through the threading holes of each screw at the same time, so that the metal wire can hinder the screw from rotating around its own axis, which is helpful to reduce the relative looseness between the screw and the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0029] Figure 2 It is a schematic diagram of Example 1 for illustrating the connection relationship between the tension screw assembly and the guide assembly.

[0030] Figure 3 It is a cross-sectional view of Example 1 used to illustrate the connection relationship between the tension screw assembly and the guide assembly.

[0031] Figure 4 It is a structural schematic diagram of the tension screw assembly of Example 1.

[0032] Figure 5 It is a cross-sectional view of Example 2 used to illustrate the connection relationship between the tension screw assembly and the guide assembly.

[0033] Figure 6 This is a schematic diagram of Example 3 used to illustrate the connection relationship between the tension screw assembly and the guide assembly.

[0034] Description of reference numerals: 1. Template; 11. Through hole; 2. Steel back rib; 21. Web; 211. Reinforced folded edge; 212. Through hole; 22. Connecting rib; 3. Tension screw assembly; 31. Screw; 311. External thread; 312. Optical axis section; 313. Prismatic head; 314. Step surface; 315. Threading hole; 316. Insertion seam; 32. Nut; 33. Gasket; 4. Screw sleeve; 5. Guide assembly; 51. Mounting seat; 511. Bottom plate; 512. Side plate; 52. Limiting piece; 521. Guide sleeve; 5211. End wall; 522. Connecting piece; 523. Conical spring; 524. Limiting structure; 525. Connecting plate; 526. Limiting plate; 53. Latch; 6. Limiting gasket; 7. Metal wire. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] Example 1 The embodiment of the present application discloses a template 1 structure for concrete wall construction. Figure 1-3 A template 1 structure for concrete wall construction includes a template 1 and a tension screw assembly 3. The templates 1 are arranged in groups of two. A plurality of steel back ribs 2 are provided on the outer side of the template 1. The steel back ribs 2 on the two templates 1 are arranged one by one. The tension screw assembly 3 includes a screw 31. The template 1 is provided with a penetration hole 11 for penetrating the screw 31. A screw sleeve 4 for penetrating the screw 31 is provided between the two templates 1 in the same group. The two ends of the screw sleeve 4 are respectively aligned with the penetration holes 11 on the two templates 1. The two ends of the screw 31 are respectively provided with external threads 311. The spiral directions of the external threads 311 at the two ends of the screw 31 are opposite. Nuts 32 are respectively provided at the two ends of the screw 31. Gaskets 33 are respectively provided at the two ends of the screw 31. The gaskets 33 are located between the nuts 32 and the steel back ribs 2. The spiral directions of the internal threads of the two nuts 32 at the two ends of the screw 31 are opposite. A guide assembly 5 is provided on the side of the steel back rib 2 away from the template 1. The guide assembly 5 is provided in a one-to-one correspondence with the nut 32. The guide assembly 5 is used to limit the rotation of the nut 32 around its own center line.

[0037] The nuts 32 at both ends of the screw rod 31 are limited by the guide assembly 5 , so that by rotating the screw rod 31 , the nuts 32 at both ends of the screw rod 31 can move toward each other at the same time, so that the two nuts 32 press the corresponding steel back ribs 2 toward each other at the same time.

[0038] Reference Figure 1The steel back rib 2 includes two webs 21 and connecting ribs 22 connecting the two webs 21. The two long sides of the webs 21 are respectively provided with reinforcing folded edges 211, and the reinforcing folded edges 211 are bent toward the center direction of the steel back rib 2; a through hole 212 is reserved on the web 21 of the steel back rib 2, and the through hole 212 is a waist-shaped hole, and the length direction of the waist-shaped hole is set along the length direction of the steel back rib 2.

[0039] Reference Figure 3 The portion of the screw 31 between the two external threads 311 is an optical axis section 312, the diameter of the optical axis section 312 is larger than the major diameter of the external thread 311, and a step surface 314 is formed between the optical axis section 312 and the external thread 311; a prismatic head 313 is provided at one end of the screw 31, and the shape of the prismatic head 313 can be a hexagonal head or a square head. The prismatic head 313 is connected to a socket wrench, so that the screw 31 can be quickly tightened using a ratchet wrench or a pneumatic wrench, which is more convenient.

[0040] Reference Figure 2 and Figure 4 One of the two nuts 32 is set as the first nut 32, and the other is the second nut 32. The first nut 32 is a square nut 32, and the second nut 32 is a hexagonal nut 32. The first nut 32 and the second nut 32 have different shapes, so that the two nuts 32 can be distinguished. On the other hand, the prismatic head 313 can be used to distinguish the external threads 311 at both ends of the screw rod 31, so that the adaptation work of the two nuts 32 and the external threads 311 at both ends of the screw rod 31 is more convenient.

[0041] Reference Figure 2 The guide assembly 5 includes a mounting seat 51 and a limit member 52. The mounting seat 51 includes a bottom plate 511 and two side plates 512. A groove-shaped area adapted to the steel back rib 2 is formed between the bottom plate 511 and the two side plates 512. A latch 53 is commonly provided between the two side plates 512, and the latch 53 passes through a through hole 212 reserved on the steel back rib 2.

[0042] The limiting member 52 includes a guide sleeve 521 , the inner circumference of the guide sleeve 521 is matched with the outer circumference of the nut 32 , the outer circumference of the nut 32 is a prismatic surface, and a connecting member 522 is connected between the guide sleeve 521 and the mounting seat 51 .

[0043] Reference Figure 3A limiting gasket 6 is sleeved on the external thread 311 at one end of the screw rod 31. The limiting gasket 6 has an inner hole. The inner hole of the limiting gasket 6 is larger than the major diameter of the external thread 311 and smaller than the outer diameter of the optical axis section 312. The limiting gasket 6 is located between the two webs 21 of the steel back rib 2. The limiting gasket 6 is located between the step surface 314 of the threaded rod and the reinforced folded edge 211 of the steel back rib 2 away from the template 1. When the limiting gasket 6 abuts against the reinforced folded edge 211 of the steel back rib 2 away from the template 1, the limiting gasket 6 can limit the axial position of the screw rod 31, so that the staff can rotate the screw 31 more stably.

[0044] It should be noted that when installing the limiting gasket 6, the limiting gasket 6 is placed obliquely between the two webs 21 of the steel back rib 2. After the limiting gasket 6 enters between the two webs 21, the limiting gasket 6 is erected so that the screw 31 can pass through the inner hole of the limiting gasket 6.

[0045] Reference Figure 2 The guide sleeve 521 is provided with a cone spring 523, the small end of the cone spring 523 is fixedly connected to the guide sleeve 521, the large end of the cone spring 523 faces the steel back rib 2, and the cone spring 523 is in a state of compression and deformation. The small end of the cone spring 523 is sleeved with the guide sleeve 521, and the outer peripheral surface of the guide sleeve 521 is provided with a limiting structure 524, which is an annular sheet sleeved and fixed on the guide sleeve 521, and the cone spring 523 is located between the limiting structure 524 and the steel back rib 2.

[0046] Reference Figure 1 The prism head 313 of the screw 31 is provided with a threading hole 315, and the threading hole 315 is arranged along the radial direction of the screw 31. The screws 31 of the same template 1 are commonly penetrated with a metal wire 7 through the threading hole 315. The metal wire 7 is a copper wire or a steel wire. The end face of the prism head 313 is provided with a plug seam 316, and the plug seam 316 passes through the threading hole 315; the depth direction of the plug seam 316 is relatively inclined to the axis of the screw 31. Each end of the metal wire 7 is wound and connected with one of the screws 31. The metal wire 7 can prevent the screw 31 from rotating around its own axis, thereby reducing the loosening of the nut 32.

[0047] The implementation principle of the template 1 structure used for concrete wall construction in the embodiment of the present application is as follows: when the template 1 structure is installed, the screw sleeve 4 is tied and installed on the steel structure of the wall, two templates 1 are erected and installed in the area to be poured on the wall, and then the steel back rib 2 is installed on the outer side of the template 1, and then the screw 31 of the tension screw assembly 3 passes through the template 1 and the steel back rib 2, and then the screw 31 of the tension screw assembly 3 passes through the template 1 and the steel back rib 2, and then the two nuts 32 are screwed on both ends of the screw 31 respectively, and then the guide assembly 5 is installed on the steel back rib 2, and the nut 32 is positioned by the guide assembly 5, and then the screw 31 is rotated so that the screw 31 drives the nut 32 to move along the axial direction of the screw 31. Since the spiral directions of the external threads 311 at the ends of the screw 31 are opposite, the two nuts 32 can move toward each other at the same time, which is conducive to improving the tightening efficiency of the two nuts 32; and the two nuts 32 are tightened at the same time, which is conducive to ensuring the reliability of the locking state. Under the premise that the limiting nut 32 is positioned, the nut 32 can be tightened by using a ratchet wrench or a pneumatic wrench, which is beneficial to further improve the tightening efficiency of the nut 32 .

[0048] Example 2 Reference Figure 5 , the difference between this embodiment and embodiment 1 is that the limiting gasket 6 is not provided in this embodiment. In this embodiment, one of the two guide sleeves 521 close to the prism head 313 is a first guide sleeve 521, and the other is a second guide sleeve 521. Both ends of the first guide sleeve 521 are through-set, and the end of the second guide sleeve 521 away from the prism head 313 has an end wall 5211, which replaces the limiting gasket 6 to play a role in limiting the axial position of the screw 31.

[0049] Example 3 The difference between this embodiment and the first embodiment is that the limiting member 52 adopts a different structure.

[0050] Reference Figure 6 The limiting member 52 in this embodiment includes a connecting plate 525, which is fixedly connected to the mounting seat 51. The connecting plate 525 is provided with two limiting plates 526, and the two limiting plates 526 respectively abut against the side surfaces of the two opposite sides of the nut 32.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A formwork structure for concrete wall construction, characterized in that: The invention comprises two templates (1) and a plurality of tension screw rod assemblies (3), wherein the outer side surface of each template (1) is provided with a plurality of steel back ribs (2), and the tension screw rod assembly (3) comprises a screw rod (31), wherein the screw rod (31) passes through the two templates (1) and the two steel back ribs (2) at the same time, and the two ends of the screw rod (31) are respectively provided with external threads (311), and the spiral directions of the external threads (311) at the two ends of the screw rod (31) are opposite, and the two ends of the screw rod (31) are respectively provided with nuts (32), and the spiral directions of the internal threads of the two nuts (32) at the two ends of the screw rod (31) are opposite; and a guide assembly (5) is provided on the side of the steel back rib (2) away from the template (1), and the guide assembly (5) is arranged in a one-to-one correspondence with the nut (32), and the guide assembly (5) is used to prevent the nut (32) from rotating around its own center line.

2. The formwork structure for concrete wall construction according to claim 1, characterized in that: The guide assembly (5) comprises a mounting seat (51) and a stopper (52), wherein the stopper (52) is used to prevent the nut (32) from rotating around its own center line, the mounting seat (51) is connected to the steel back rib (2), the mounting seat (51) is provided with a stopper (52), and the mounting seat (51) comprises a bottom plate (511) and two side plates (512), wherein a connection with the steel back rib (512) is formed between the bottom plate (511) and the two side plates (512). 2) an adaptive groove-shaped area, a latch (53) is provided between the two side plates (512), the latch (53) passes through a through hole (212) reserved on the steel back rib (2), the through hole (212) on the steel back rib (2) is a waist-shaped hole, and the length direction of the waist-shaped hole is arranged along the length direction of the steel back rib (2); the limiting member (52) is installed on the bottom plate (511), and the limiting member (52) abuts against the outer side surface of the nut (32).

3. The formwork structure for concrete wall construction according to claim 2 is characterized in that: The limiting member (52) comprises a guide sleeve (521), the inner circumferential surface of the guide sleeve (521) is adapted to the outer circumferential surface of the nut (32), the outer circumferential surface of the nut (32) is a prismatic surface, and a connecting member (522) is connected between the guide sleeve (521) and the mounting seat (51).

4. The formwork structure for concrete wall construction according to claim 3 is characterized in that: The guide sleeve (521) is provided with a conical spring (523), the small end of the conical spring (523) is fixedly connected to the guide sleeve (521), the large end of the conical spring (523) faces the steel back rib (2), and the conical spring (523) is in a compressed and deformed state.

5. The formwork structure for concrete wall construction according to claim 3 is characterized in that: One end of the screw rod (31) is provided with a prismatic head (313), and the prismatic head (313) is adapted to be connected to a socket wrench.

6. The formwork structure for concrete wall construction according to claim 5, characterized in that: Of the two guide sleeves (521), one closer to the prism head (313) is a first guide sleeve (521), and the other is a second guide sleeve (521); both ends of the first guide sleeve (521) are through-connected, and an end of the second guide sleeve (521) away from the prism head (313) has an end wall (5211), and the end wall (5211) is used to limit the axial position of the screw rod (31).

7. The formwork structure for concrete wall construction according to claim 1, characterized in that: The portion of the screw rod (31) located between the two external threads (311) is an optical axis section (312); the diameter of the optical axis section (312) is larger than the major diameter of the external threads (311); a step surface (314) is formed between the optical axis section (312) and the external threads (311); the steel back rib (2) comprises two webs (21) and a connecting rib (22) connecting the two webs (21); two long sides of the webs (21) are respectively provided with reinforcing folded edges (211); the reinforcing folded edges (211) extend toward the steel back rib (2). The outer thread (311) at one end of the screw rod (31) is sleeved with a limiting gasket (6), the limiting gasket (6) having an inner hole, the inner diameter of the limiting gasket (6) being larger than the major diameter of the outer thread (311) and smaller than the outer diameter of the optical axis section (312), the limiting gasket (6) being located between the two webs (21) of the steel back rib (2), and the limiting gasket (6) being located between the step surface (314) and the reinforcing folded edge (211) of the steel back rib (2) away from the template (1).

8. The formwork structure for concrete wall construction according to claim 1, characterized in that: A threading hole (315) is provided at the end of the screw rod (31), and the threading hole (315) is arranged along the radial direction of the screw rod (31). The screw rods (31) of the same template (1) are threaded with a metal wire (7) through the threading hole (315).

9. The formwork structure for concrete wall construction according to claim 8, characterized in that: An inserting seam (316) is provided on the end surface of the screw rod (31), and the inserting seam (316) passes through the threading hole (315); the depth direction of the inserting seam (316) is inclined relative to the axis of the screw rod (31).

10. The formwork structure for concrete wall construction according to claim 8, characterized in that: Each end of the metal wire (7) is wound and connected to one of the screw rods (31).

Images