A device for fixing the lower end of an exterior wall formwork by means of a cross tie with a wooden square

Abstract

The present invention discloses a tensioning and fixing device for the locking feet of formwork square timbers on the exterior wall, which includes a tensioning member embedded inside the exterior wall and a guiding member embedded in the exterior wall parallel to the tensioning member. Both ends of the tensioning member extend beyond the two side surfaces of the exterior wall. One end of the tensioning member is sleeved with a tensioning sleeve, and the other end of the tensioning member is sleeved with a positioning sleeve. An anti-force elastic member cooperating with the tensioning sleeve is arranged at one end of the tensioning member close to the tensioning sleeve, and a limiting member cooperating with the positioning sleeve is arranged at one end of the tensioning member close to the positioning sleeve. A square timber locking member is arranged at one end of the positioning sleeve away from the exterior wall, and the end of the square timber locking member away from the positioning sleeve is slidably connected to the guiding member. A space for locking the square timber is formed between the square timber locking member and the guiding member. The present invention can quickly position and lock square timbers of different specifications at the locking feet of the exterior wall and effectively prevent the square timbers from loosening and falling off.

Description

Technical Field

[0001] The invention belongs to the technical field of the installation and positioning of exterior wall wooden square timbers, and particularly relates to a tensioning and fixing device for the lock-foot wooden square timbers of exterior wall formwork. Background Art

[0002] During the construction process of building projects, the leakage of mortar and the root rot at the joint parts of exterior wall formwork have become common quality problems in project construction. Especially in the exterior wall formwork of shear wall structures, the problems of mortar leakage and root rot at the joint parts are more prominent. This common quality problem not only affects the appearance quality of the exterior wall formwork structure, but will seriously affect the safety of the overall project structure when it is serious. At the same time, it also causes waste of concrete materials due to mortar leakage.

[0003] At present, the fixation of exterior wall formwork and the leakage of mortar and root rot at the joint parts of exterior wall structures have always been difficult problems in project construction. Usually, wooden square timbers are fixed on the exterior wall. The wooden square timbers can tightly fit the joint parts of the exterior wall, thereby avoiding the leakage of mortar at the joint parts of the exterior wall formwork. The existing method of fixing wooden square timbers at the lock-foot part of the exterior wall is usually to pre-bury connecting bars and other embedded parts on the exterior wall, and then install a clamping plate or a clamping opening on one end of the connecting bar extending to the exterior wall to tightly press the wooden square timber against the exterior wall to achieve the fixation of the wooden square timber. However, the above existing wooden square timber fixing structure has problems such as poor fixing effect of the wooden square timber and easy loosening, and it is difficult to flexibly adjust the fixing structure according to different specifications of wooden square timbers. Summary of the Invention

[0004] The purpose of the invention is to provide a tensioning and fixing device for the lock-foot wooden square timbers of exterior wall formwork, which can quickly position and lock different specifications of wooden square timbers at the lock-foot part of the exterior wall and effectively prevent the wooden square timbers from loosening and falling off.

[0005] The invention is realized by the following technical solutions:

[0006] A tensioning and fixing device for the lock-foot wooden square timbers of exterior wall formwork includes a tensioning member pre-buried inside the exterior wall and a guiding member pre-buried in the exterior wall parallel to the tensioning member. Both ends of the tensioning member extend beyond the two side surfaces of the exterior wall. One end of the tensioning member is sleeved with a tensioning sleeve, and the other end of the tensioning member is sleeved with a positioning sleeve; an anti-reaction elastic member cooperating with the tensioning sleeve is arranged at one end of the tensioning member close to the tensioning sleeve, and a limiting member cooperating with the positioning sleeve is arranged at one end of the tensioning member close to the positioning sleeve; a wooden square timber locking member is arranged at one end of the positioning sleeve far from the exterior wall, and the end of the wooden square timber locking member far from the positioning sleeve is slidably connected with the guiding member, and a space for locking the wooden square timber is formed between the wooden square timber locking member and the guiding member.

[0007] Install reaction elastic members and limit members at both ends of the tension member respectively. Then, sleeved a tension sleeve on one end of the tension member corresponding to the reaction elastic member, and sleeved a positioning sleeve on the end of the tension member extending to the outer wall lock foot and corresponding to the limit member. Then, install a wooden square locking member outside the positioning sleeve. At this time, the tension sleeve and the positioning sleeve are in a state of not being tensioned and locked yet. Then, place the wooden square to be locked on the guiding member, and then synchronously tension the tension sleeve and the positioning sleeve in opposite directions through the tension member, so that the tension sleeve contacts and presses the reaction elastic member, and at the same time, the wooden square locking member moves towards the outer wall along with the positioning sleeve until the wooden square locking member tightly presses the side surface of the wooden square located on the guiding member, realizing the locking of the wooden square. Due to the reaction elastic force of the reaction elastic member and the positioning of the positioning sleeve on the wooden square locking member, a reaction force towards the outer wall direction is applied to the wooden square locking member, and the wooden square is locked towards the outer wall through the reaction force, effectively positioning the wooden square and preventing the wooden square from moving.

[0008] At the same time, by adjusting the feeding distance of the positioning sleeve, that is, adjusting the distance between the locking surface of the wooden square locking member and the outer wall surface, it can be further adapted to compatibly lock wooden squares of different specifications, and the applicable range is wider. In order to prevent the positioning sleeve from moving too far towards the outer wall, a limit member is provided, and the feeding limit distance of the positioning sleeve is limited by the limit member.

[0009] To better implement the present invention, further, guiding members embedded inside the outer wall are symmetrically arranged on the upper and lower sides of the tension member. Guiding chutes are arranged on both sides of the guiding members, and wooden square fastening members for fastening the wooden square towards the tension member are arranged on both the upper and lower guiding members. The wooden square fastening members are slidably connected with the guiding chutes.

[0010] To better implement the present invention, further, a radial tension member perpendicular to the sliding direction of the wooden square fastening member is arranged between the upper and lower wooden square fastening members. The radial tension member includes a radial threaded sleeve, a radial tension screw, and a locking nut. The radial threaded sleeve is arranged between the upper and lower guiding members. Radial tension screws are threadedly installed at both ends of the radial threaded sleeve. One end of the radial tension screw away from the radial threaded sleeve sequentially passes through the guiding chute on the guiding member and the through hole on the wooden square fastening member. A locking nut for tightly pressing the wooden square fastening member is threadedly sleeved on one end of the radial tension screw away from the radial threaded sleeve.

[0011] To better implement the present invention, further, the wooden square fastening member includes a top fastener and a bottom sliding member. The bottom sliding member is slidably connected with the guiding chute on the guiding member. A top fastener is arranged on one side of the bottom sliding member away from the guiding member. A space for installing the wooden square is formed between the top fastener and the bottom sliding member.

[0012] To better implement the present invention, further, the tension member includes a tension sleeve and a tension screw. The tension sleeve is pre-embedded inside the exterior wall. A tension screw is rotatably clamped in the tension sleeve. At both ends of the tension screw, a tension sleeve and a positioning sleeve are respectively threadedly sleeved. At both ends of the tension sleeve, a reaction force elastic member and a limiting member are respectively installed.

[0013] To better implement the present invention, further, the reaction force elastic member includes a reaction force installation sleeve and a petal-shaped reaction force elastic sleeve. At one end of the reaction force installation sleeve close to the tension sleeve, a positioning cone is provided. At the end of the tension sleeve, a conical groove matching the positioning cone is provided. At the end of the reaction force installation sleeve far from the tension sleeve, a petal-shaped reaction force elastic sleeve is provided. At one end of the petal-shaped reaction force elastic sleeve close to the tension sleeve, inclined petal-shaped elastic pieces are provided. At one end of the tension sleeve close to the petal-shaped reaction force elastic sleeve, an extrusion inclined surface matching the petal-shaped elastic pieces is provided.

[0014] To better implement the present invention, further, a central hole for the tension screw to pass through is provided on the petal-shaped reaction force elastic sleeve. The petal-shaped elastic pieces are uniformly arranged along the circumference coaxial with the tension screw, and a gap is provided between adjacent petal-shaped elastic pieces.

[0015] To better implement the present invention, further, the limiting member includes a limiting installation sleeve. At one end of the limiting installation sleeve close to the tension sleeve, a positioning cone is provided. At the end of the tension sleeve, a conical groove matching the positioning cone is provided. At the end of the limiting installation sleeve far from the tension sleeve, a limiting end face is provided. A ring-shaped limiting flange is provided on the limiting end face. A ring-shaped positioning groove matching the ring-shaped limiting flange is provided on one end of the positioning sleeve close to the limiting installation sleeve.

[0016] To better implement the present invention, further, the wooden square locking member includes a locking flange. The locking flange is coaxially arranged with the tension member and is installed on the end of the positioning sleeve far from the exterior wall. A locking gasket is provided on the side of the locking flange close to the exterior wall.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] (1) In the present invention, a tension sleeve and a positioning sleeve are respectively sleeved at both ends of a tension member embedded inside the exterior wall. A reaction force elastic member is installed at one end of the tension member corresponding to the tension sleeve, and a wooden square locking member is installed at one end of the positioning sleeve. By driving the tension sleeve and the positioning sleeve to move towards each other and towards the exterior wall through the tension member, the tension sleeve squeezes the reaction force elastic member, and at the same time, the wooden square locking member at the end of the positioning sleeve presses the wooden square tightly towards the exterior wall. At the same time, a reaction force away from the exterior wall is applied to the tension sleeve through the elastic deformation of the reaction force elastic member, and then the reaction force is transmitted to the positioning sleeve and the wooden square locking member through the tension member, so that the wooden square locking member continuously presses the wooden square tightly towards the exterior wall under the action of the reaction force, thereby realizing the positioning and fixing of the wooden square and effectively avoiding the loosening of the wooden square.

[0019] (2) The present invention can adjust the moving distance of the wooden square locking member, thereby being compatible with wooden squares of different specifications for tight fixing, and having a wider applicability.

[0020] (3) In the present invention, a wooden square fastening member is slidably arranged on a guiding member, and the wooden square is fastened towards the guiding member through the wooden square fastening member, thereby avoiding the detachment of the wooden square during the fixing process. At the same time, a radial tension member is arranged between the upper and lower wooden square fastening members to perform radial tension on the upper and lower wooden square fastening members towards each other, further fixing the wooden square, so that the wooden square can be firmly fixed both during installation and disassembly, avoiding the danger caused by the detachment of the wooden square. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is Figure 1 the sectional view taken along the line A - A of

[0023] Figure 3 is a schematic diagram of the structure of the tension member;

[0024] Figure 4 is a schematic diagram of the structure of the reaction force elastic member and the limiting member.

[0025] Wherein: 1 - tension member; 2 - tension sleeve; 3 - positioning sleeve; 4 - reaction force elastic member; 5 - limiting member; 6 - guiding member; 7 - wooden square locking member; 8 - wooden square fastening member; 9 - radial tension member; 11 - tension sleeve barrel; 12 - tension screw; 41 - reaction force installation sleeve barrel; 42 - petal-shaped reaction force elastic sleeve barrel; 51 - limiting installation sleeve barrel; 52 - annular limiting flange; 71 - locking flange; 81 - top fastener; 82 - bottom sliding member; 91 - radial threaded sleeve barrel; 92 - radial tension screw; 93 - locking nut; 001 - petal-shaped elastic sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiment 1:

[0027] A device for fixing a formwork locking wooden square for an exterior wall in this embodiment is as follows Figures 1 - 4 As shown, it includes a tension member 1 embedded inside the exterior wall and a guiding member 6 embedded in the exterior wall parallel to the tension member 1. Both ends of the tension member 1 extend beyond the two side surfaces of the exterior wall. One end of the tension member 1 is sleeved with a tension sleeve 2, and the other end of the tension member 1 is sleeved with a positioning sleeve 3; an anti-reaction elastic member 4 cooperating with the tension sleeve 2 is arranged at one end of the tension member 1 close to the tension sleeve 2, and a limiting member 5 cooperating with the positioning sleeve 3 is arranged at one end of the tension member 1 close to the positioning sleeve 3; a wooden square locking member 7 is arranged at one end of the positioning sleeve 3 away from the exterior wall, and one end of the wooden square locking member 7 away from the positioning sleeve 3 is slidably connected to the guiding member 6, and a space for locking the wooden square is formed between the wooden square locking member 7 and the guiding member 6.

[0028] The tension member 1 is embedded in the embedded hole on the exterior wall, and both ends of the tension member 1 extend to the outside of the wall surface of the exterior wall respectively. Then, the anti-reaction elastic member 4 and the limiting member 5 are pre-installed at both ends of the tension member 1 through connecting bolts respectively. The end of the guiding member 6 is installed inside the exterior wall through an embedded sleeve, and the other end of the guiding member 6 extends in the direction away from the exterior wall.

[0029] Then, the tension sleeve 2 is sleeved on one end of the tension member 1 corresponding to the anti-reaction elastic member 4, the positioning sleeve 3 is sleeved on one end of the tension member 1 corresponding to the limiting member 5, and then the wooden square locking member 7 is installed at one end of the positioning sleeve 3 away from the exterior wall. A guiding groove slidably connected to the guiding member 6 is arranged on the wooden square locking member 7. The guiding groove is slidably connected to the guiding member 6, and then the wooden square is placed on the guiding surface of the guiding member 6. At this time, the tension sleeve 2 and the positioning sleeve 3 are in a state of not being tensioned and locked, that is, the wooden square locking member 7 does not lock the side surface of the wooden square. At this time, the installation position of the wooden square can be adjusted.

[0030] By pulling the tension sleeve 2 and the positioning sleeve 3 towards each other through the tension member 1, the tension sleeve 2 and the positioning sleeve 3 move closer to each other until the end of the tension sleeve 2 close to the exterior wall contacts the anti-reaction elastic member 4 and presses the anti-reaction elastic member 4 in the direction towards the exterior wall, causing the anti-reaction elastic member 4 to generate an anti-reaction force in the direction away from the exterior wall. At the same time, the positioning sleeve 3 drives the wooden square locking member 7 to move towards the exterior wall until the wooden square locking member 7 presses the side surface of the wooden square placed on the guiding surface of the guiding member 6 against the exterior wall tightly to cooperate with the guiding member 6 to position and lock the wooden square. In the state of locking the wooden square, due to the action of the anti-reaction force of the anti-reaction elastic member 4 on the tension sleeve 2, the anti-reaction force is transmitted to the positioning sleeve 3 and the wooden square locking member 7 through the tension member 1, and then the wooden square locking member 7 presses the wooden square tightly against the exterior wall with a constant force under the action of the anti-reaction force, thereby realizing the positioning and locking of the wooden square and effectively preventing the wooden square from moving.

[0031] Embodiment 2:

[0032] This embodiment is further optimized on the basis of Embodiment 1, such as Figure 1 and Figure 2 As shown, guide members 6 embedded inside the exterior wall are symmetrically arranged on the upper and lower sides of the tie member 1. Guide chutes are provided on both sides of the guide members 6. Wood fastening members 8 for fastening the wooden square towards the tie member 1 are provided on both the upper and lower guide members 6, and the wood fastening members 8 are slidably connected to the guide chutes.

[0033] By fastening the wooden square towards the tie member 1 with the wood fastening member 8, the wooden square will not fall off during the process of sliding along the guide surface of the guide member 6.

[0034] Other parts of this embodiment are the same as those of Embodiment 1, so they will not be elaborated here.

[0035] Embodiment 3:

[0036] This embodiment is further optimized on the basis of the above Embodiment 1 or 2, such as Figure 1 and Figure 2 As shown, a radial tie member 9 perpendicular to the sliding direction of the wood fastening member 8 is provided between the upper and lower wood fastening members 8. The radial tie member 9 includes a radial threaded sleeve 91, a radial tie rod 92, and a locking nut 93. The radial threaded sleeve 91 is arranged between the upper and lower guide members 6. Radial tie rods 92 are threadedly installed at both ends of the radial threaded sleeve 91. The end of the radial tie rod 92 away from the radial threaded sleeve 91 sequentially passes through the guide chute on the guide member 6 and the through hole on the wood fastening member 8. A locking nut 93 for pressing against the wood fastening member 8 is threadedly sleeved on the end of the radial tie rod 92 away from the radial threaded sleeve 91.

[0037] A tie threaded hole is provided on the end face of the wood fastening member 8 close to the tie member 1. One end of the radial tie rod 92 is threadedly connected to the tie threaded hole, and the other end of the radial tie rod 92 is threadedly connected to the threaded hole of the radial threaded sleeve 91. By rotating the radial threaded sleeve 91, the upper and lower radial tie rods 92 move synchronously towards each other, that is, the thread rotation directions of the upper and lower radial tie rods 92 are opposite, so as to realize the opposite pulling of the upper and lower wood fastening members 8, and further realize the radial pulling and fastening of the upper and lower wooden squares. After the pulling adjustment is completed, rotate the locking nut 93 so that the end face of the locking nut 93 presses against the end face of the wood fastening member 8 close to the tie member 1 to realize the positioning and fixing of the wood fastening member 8.

[0038] Further, the wooden square fastening member 8 includes a top fastening member 81 and a bottom sliding member 82. The bottom sliding member 82 is slidably connected to the guiding chute on the guiding member 6. A top fastening member 81 is provided on one side of the bottom sliding member 82 away from the guiding member 6. A space for installing the wooden square is formed between the top fastening member 81 and the bottom sliding member 82.

[0039] An I-shaped slider slidably connected to the guiding chute is provided at one end of the bottom sliding member 82 close to the tension member 1. A tension threaded hole is provided on the end face of the I-shaped slider close to the tension member 1. A bottom groove corresponding to the contour of the wooden square is provided on the end face of the bottom sliding member 82 away from the tension member for positioning the wooden square. A top groove corresponding to the outer contour of the wooden square is provided on the end of the top fastening member 81 close to the tension member 1 for positioning the wooden square. A tension spring is further provided between the top fastening member 81 and the bottom sliding member 82. The top fastening member 81 is tightened towards the bottom sliding member 82 through the tension spring, and then the wooden square is tightened towards the guiding member 6 to prevent the wooden square from falling off.

[0040] Other parts of this embodiment are the same as those of the above-mentioned Embodiment 1 or 2, so they will not be described in detail.

[0041] Embodiment 4:

[0042] This embodiment is further optimized on the basis of any one of the above-mentioned Embodiments 1-3, such as Figure 1 and Figure 3 As shown, the tension member 1 includes a tension sleeve 11 and a tension screw 12. The tension sleeve 11 is pre-embedded inside the exterior wall. A tension screw 12 is rotatably clamped in the tension sleeve 11. Tension sleeves 2 and positioning sleeves 3 are respectively threadedly sleeved at both ends of the tension screw 12. Reaction force elastic members 4 and limiting members 5 are respectively installed at both ends of the tension sleeve 11.

[0043] The tension sleeve 11 is pre-embedded in the pre-embedded hole on the exterior wall. The tension screw 12 is rotatably clamped in the inner hole of the tension sleeve 11 through a bearing group, so that the tension screw 12 can rotate but cannot axially move relative to the tension sleeve 11. The reaction force elastic member 4 and the limiting member 5 are installed at both ends of the tension sleeve 11 through connecting bolts. Reverse threads are provided at both ends of the tension screw 12 and the tension sleeves 2 and the positioning sleeves 3 are respectively threadedly sleeved thereon. By rotating the tension screw 12, the tension sleeves 2 and the positioning sleeves 3 can be driven to move towards each other to achieve tensioning.

[0044] Other parts of this embodiment are the same as those of any one of the above-mentioned Embodiments 1-3, so they will not be described in detail.

[0045] Embodiment 5:

[0046] This embodiment is further optimized on the basis of any one of the above-mentioned Embodiments 1-4, such as Figure 1 andFigure 4 As shown, the reaction force elastic member 4 includes a reaction force mounting sleeve 41 and a petal-shaped reaction force elastic sleeve 42. A positioning cone is provided at one end of the reaction force mounting sleeve 41 close to the tension sleeve 11, and a tapered groove matching the positioning cone is provided at the end of the tension sleeve 11; a petal-shaped reaction force elastic sleeve 42 is provided at the end of the reaction force mounting sleeve 41 away from the tension sleeve 11. An inclined petal-shaped elastic piece 001 is provided at one end of the petal-shaped reaction force elastic sleeve 42 close to the tension sleeve 2, and an extrusion inclined surface matching the petal-shaped elastic piece 001 is provided at one end of the tension sleeve 2 close to the petal-shaped reaction force elastic sleeve 42.

[0047] When the tension sleeve 2 moves towards the outer wall and extrudes the petal-shaped elastic piece 001 at the end of the petal-shaped reaction force elastic sleeve 42, at this time the petal-shaped elastic piece 001 undergoes elastic deformation and generates a reaction force to extrude the extrusion inclined surface at the end of the tension sleeve 2, thereby applying a reaction force in the direction away from the outer wall to the tension sleeve 2, and realizing the tension between the tension sleeve 2 and the positioning sleeve 3 through the reaction force.

[0048] Further, a central hole for the tension screw 12 to pass through is provided on the petal-shaped reaction force elastic sleeve 42. The petal-shaped elastic pieces 001 are uniformly arranged along the circumference coaxial with the tension screw 12, and a gap is provided between adjacent petal-shaped elastic pieces 001. 3-6 petal-shaped elastic pieces 001 are uniformly arranged along the circumference coaxial with the tension screw 12, and the gap between adjacent petal-shaped elastic pieces 001 is 1-2 mm.

[0049] Other parts of this embodiment are the same as any one of the above embodiments 1-4, so they will not be described in detail.

[0050] Embodiment 6:

[0051] On the basis of any one of the above embodiments 1-5, this embodiment is further optimized. As Figure 1 and Figure 4 shown, the limiting member 5 includes a limiting mounting sleeve 51. A positioning cone is provided at one end of the limiting mounting sleeve 51 close to the tension sleeve 11, and a tapered groove matching the positioning cone is provided at the end of the tension sleeve 11; a limiting end face is provided at the end of the limiting mounting sleeve 51 away from the tension sleeve 11, and an annular limiting flange 52 is provided on the limiting end face. An annular positioning groove matching the annular limiting flange 52 is provided on one end of the positioning sleeve 3 close to the limiting mounting sleeve 51.

[0052] When the positioning sleeve 3 moves towards the outer wall to the limit position, the annular limiting flange 52 cooperates with the annular positioning groove on the positioning sleeve 3, thereby axially limiting the positioning sleeve 3 and preventing the positioning sleeve 3 from continuing to move axially.

[0053] The other parts of this embodiment are the same as any one of the above-mentioned Embodiments 1-5, so they will not be described in detail.

[0054] Embodiment 7:

[0055] This embodiment is further optimized on the basis of any one of the above-mentioned Embodiments 1-6. As Figure 4 shown, the wooden square locking member 7 includes a locking flange 71. The locking flange 71 is coaxially arranged with the tie member 1, and the locking flange 71 is installed on the end of the positioning sleeve 3 away from the outer wall. A locking gasket is arranged on the side of the locking flange 71 close to the outer wall.

[0056] The locking flange 71 is installed on the end of the positioning sleeve 3 away from the outer wall through a connecting bolt. The locking flange 71 is provided with a guiding groove slidably connected to the guiding member 6.

[0057] The other parts of this embodiment are the same as any one of the above-mentioned Embodiments 1-6, so they will not be described in detail.

[0058] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. A device for fixing the lower end of an exterior wall formwork by tensioning with a wooden square, comprising a tensioning member (1) embedded inside the exterior wall and a guiding member (6) embedded in the exterior wall parallel to the tensioning member (1), characterized in that, Both ends of the tension member (1) extend beyond the two side surfaces of the exterior wall. A tension sleeve (2) is sleeved on one end of the tension member (1), and a positioning sleeve (3) is sleeved on the other end of the tension member (1). An anti - reaction elastic member (4) that cooperates with the tension sleeve (2) is provided at one end of the tension member (1) close to the tension sleeve (2), and a limiting member (5) that cooperates with the positioning sleeve (3) is provided at one end of the tension member (1) close to the positioning sleeve (3). A wooden square locking member (7) is provided at one end of the positioning sleeve (3) away from the exterior wall. The end of the wooden square locking member (7) away from the positioning sleeve (3) is slidably connected to a guiding member (6). A space for locking the wooden square is formed between the wooden square locking member (7) and the guiding member (6). The anti - reaction elastic member (4) includes an anti - reaction mounting sleeve (41) and a petal - shaped anti - reaction elastic sleeve (42). A positioning cone is provided at one end of the anti - reaction mounting sleeve (41) close to the tension sleeve (11), and a conical groove that cooperates with the positioning cone is provided at the end of the tension sleeve (11). A petal - shaped anti - reaction elastic sleeve (42) is provided at one end of the anti - reaction mounting sleeve (41) away from the tension sleeve (11). An inclined petal - shaped elastic piece (001) is provided at one end of the petal - shaped anti - reaction elastic sleeve (42) close to the tension sleeve (2), and a pressing inclined surface that cooperates with the petal - shaped elastic piece (001) is provided at one end of the tension sleeve (2) close to the petal - shaped anti - reaction elastic sleeve (42).

2. The wall formwork locking and bracing device according to claim 1, characterized in that Guiding members (6) embedded inside the exterior wall are symmetrically arranged on the upper and lower sides of the tension member (1). Guide chutes are provided on both guiding members (6). Wooden square fastening members (8) for fastening the wooden square towards the tension member (1) are provided on both the upper and lower guiding members (6), and the wooden square fastening members (8) are slidably connected to the guide chutes.

3. The tensioning and fixing device for the lower-locking wooden square of the exterior wall formwork according to claim 2, wherein, A radial tension member (9) perpendicular to the sliding direction of the wooden square fastening member (8) is provided between the upper and lower wooden square fastening members (8). The radial tension member (9) includes a radial threaded sleeve (91), a radial tension screw (92), and a locking nut (93). The radial threaded sleeve (91) is arranged between the upper and lower guiding members (6). Radial tension screws (92) are threadedly installed at both ends of the radial threaded sleeve (91). The end of the radial tension screw (92) away from the radial threaded sleeve (91) sequentially passes through the guide chute on the guiding member (6) and the through - hole on the wooden square fastening member (8). A locking nut (93) that presses the wooden square fastening member (8) is threadedly sleeved on the end of the radial tension screw (92) away from the radial threaded sleeve (91).

4. The pull - fixing device for the lower - locking wooden square of the exterior wall formwork according to claim 3, characterized in that, The wooden square fastening member (8) includes a top fastener (81) and a bottom slider (82). The bottom slider (82) is slidably connected to the guide chute on the guiding member (6). A top fastener (81) is provided on one side of the bottom slider (82) away from the guiding member (6). A space for installing the wooden square is formed between the top fastener (81) and the bottom slider (82).

5. A pull - and - fix device for the lower - locking wooden square of an exterior wall formwork according to any one of claims 1 - 4, characterized in that, The tie member (1) includes a tie sleeve (11) and a tie screw (12). The tie sleeve (11) is embedded inside the exterior wall. The tie screw (12) is rotatably clamped in the tie sleeve (11). Both ends of the tie screw (12) are provided with reverse threads, and a tie sleeve (2) and a positioning sleeve (3) are respectively threadedly sleeved thereon. Reaction force elastic members (4) and limiting members (5) are respectively installed at both ends of the tie sleeve (11).

6. The wall formwork locking and bracing device according to claim 1, characterized in that, A central hole for the tie screw (12) to pass through is provided on the petal-shaped reaction force elastic sleeve (42). The petal-shaped elastic pieces (001) are uniformly arranged along the circumference coaxial with the tie screw (12), and a gap is provided between adjacent petal-shaped elastic pieces (001).

7. The wall formwork locking and bracing device according to claim 5, characterized in that, The limiting member (5) includes a limiting installation sleeve (51). A positioning cone is provided at one end of the limiting installation sleeve (51) close to the tie sleeve (11), and a conical groove matching the positioning cone is provided at the end of the tie sleeve (11). A limiting end face is provided at the end of the limiting installation sleeve (51) far from the tie sleeve (11), and an annular limiting flange (52) is provided on the limiting end face. An annular positioning groove matching the annular limiting flange (52) is provided at one end of the positioning sleeve (3) close to the limiting installation sleeve (51).

8. A wall formwork locking and bracing device for a tie-down wooden square according to any one of claims 1-4, characterized in that, The wooden square locking member (7) includes a locking flange (71). The locking flange (71) is coaxially arranged with the tie member (1), and the locking flange (71) is installed on the end of the positioning sleeve (3) far from the exterior wall. A locking gasket is provided on the side of the locking flange (71) close to the exterior wall.

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