An anti-solidification wall-through tie rod for shear walls

Abstract

The present invention discloses an anti-solidification through-wall tie rod for shear walls, belonging to the technical field of shear wall construction, including a mountain-shaped card rotating rod, a fixing ring, a limiting block, and a driving unit for driving the rotating rod to rotate provided inside the fixing ring; in this application, during the rotation process of the rotating rod, it always maintains active contact with the surrounding concrete, avoiding the rotating rod from remaining stationary for a long time and solidifying under the action of the concrete; in the initial stage of concrete solidification, by making the two farthest limiting blocks on both sides of the slider extend out, so that the rotating rod rotates to a large extent, avoiding the rotating rod from solidifying together with the concrete; as the concrete gradually solidifies, the reciprocating rotation degree of the rotating rod is continuously reduced, so as to avoid the concrete adhered to the rotating rod from damaging the concrete structure around the rotating rod under the rotation action of the rotating rod, thus ensuring the integrity of the concrete structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of shear wall construction, and particularly relates to an anti-solidification through-wall tie rod for shear walls. Background Art

[0002] In the process of reinforcing the formworks on both sides of cast-in-place concrete structures such as shear walls and large-section beams of concrete structures, the form of a tie rod is generally used for tying the formworks on both sides. That is, a PVC pipe is sleeved between the two formworks, and the screw rod is passed through the PVC pipe. Then, two U-shaped clamps are respectively sleeved on the screw rod. While the U-shaped clamps are used to press against the steel pipes, nuts are used to press against the U-shaped clamps to realize the reinforcement of the two formworks. After the concrete solidifies, the screw rod is taken out from the shear wall, and then the PVC pipe is chiseled out. There is a problem in this process, that is, when the part of the concrete in contact with the PVC pipe solidifies, it will be fixed together with the PVC pipe. When the PVC pipe is chiseled out, the concrete separated from the shear wall will remain on the PVC pipe, thus affecting the integrity of the concrete structure. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an anti-solidification through-wall tie rod for shear walls to solve the technical problem in the prior art that when the PVC pipe is chiseled out, the concrete separated from the shear wall will remain on the PVC pipe, thus affecting the integrity of the concrete structure.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides an anti-solidification through-wall tie rod for shear walls, including a U-shaped clamp provided on the side of the corresponding formwork away from the shear wall; a rotating rod is provided between the two U-shaped clamps; the rotating rod vertically penetrates the formwork and is rotatably connected to the formwork; one of the U-shaped clamps is detachably connected to the rotating rod; a fixed ring coaxial with the rotating rod is provided on the other U-shaped clamp; an arc-shaped groove coaxial with the rotating rod is opened on the side of the fixed ring opposite to the rotating rod; a plurality of limiting grooves are circularly arranged on the side wall of the arc-shaped groove with the axis of the fixed ring as the center; a limiting block capable of extending into the arc-shaped groove is slidably arranged along the axial direction of the fixed ring in each limiting groove; a sliding block slidably arranged along the arc-shaped groove is provided at one end of the rotating rod; a driving unit for driving the sliding block to reciprocate along the arc-shaped groove, thereby driving the rotating rod to rotate is provided inside the fixed ring.

[0006] Further, the driving unit includes a driving ring coaxially and rotatably connected within the fixed ring; a locking groove is formed on the side wall of the driving ring opposite to the rotating rod; a cylinder is disposed axially in the locking groove along the driving ring; a rotating shaft that can extend into the driving ring and is rotatably connected to the mountain-shaped card is coaxially provided on the side wall of the rotating rod opposite to the locking groove; a torsion spring capable of resetting the rotating rod is sleeved on the rotating shaft; one end of the torsion spring is connected to the mountain-shaped card, and the other end is connected to the rotating shaft; a telescopic groove is formed on the side wall of the rotating rod outside the rotating shaft; a locking shaft that can extend into the locking groove is slidably connected in the telescopic groove through a spring; the telescopic shaft of the cylinder can push the locking shaft out of the locking groove.

[0007] Further, a moving tube perpendicular to the template and sliding is sleeved on the rotating rod; a moving groove is coaxially formed at one end of the rotating rod away from the driving ring; a driving rod capable of reciprocating movement is slidably connected in the moving groove; a transition groove communicating with the moving groove is formed on the circumferential side of the rotating rod; the driving rod and the moving tube are fixedly connected through a transition strip slidably disposed in the transition groove.

[0008] Further, there is a gap between both ends of the moving tube and the corresponding mountain-shaped card, and the length of the moving tube is greater than the distance between the templates.

[0009] Further, a through hole is formed in the mountain-shaped card in the direction away from the driving ring; the mountain-shaped card is slidably sleeved on the rotating rod through the through hole; a nut for pressing against the mountain-shaped card is threadedly connected to the rotating rod.

[0010] Further, there is a gap between the torsion spring and the inner wall of the ring of the driving ring.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. During the rotation process, any two of the limiting blocks on both sides of the slider extend into the arc groove, thereby changing the reciprocating sliding position of the slider, enabling the slider to achieve a small-distance arc sliding switch, or a large-distance arc sliding, or a switch between a small distance and a large distance, so that the sliding of the slider is in an irregular state; since the slider is fixedly connected to the rotating rod, the rotation state of the rotating rod is consistent with the sliding state of the slider in the arc groove; during the rotation of the rotating rod, it always maintains active contact with the surrounding concrete, avoiding the rotating rod from remaining stationary for a long time and solidifying under the action of the concrete; in the initial stage of concrete solidification, by making the two farthest limiting blocks on both sides of the slider extend out, the rotating rod is in a large-degree rotation state, avoiding the rotating rod from solidifying together with the concrete; as the concrete gradually solidifies, the reciprocating rotation degree of the rotating rod is continuously reduced, thereby preventing the concrete adhered to the rotating rod from damaging the concrete structure on the periphery of the rotating rod under the rotation action of the rotating rod, thus ensuring the integrity of the concrete structure.

[0013] 2. The driving ring rotates, thereby driving the rotating rod to rotate through the locking shaft inserted into the locking groove. When the slider slides into contact with the limiting block, the telescopic shaft of the cylinder pushes the locking shaft out of the locking groove, and the rotating shaft returns to its initial state under the action of the torsion spring. When the rotating rod starts to rotate, the torsion spring gives a decelerating effect to prevent the rotating speed of the rotating rod from being too fast, so that the concrete adhering to the periphery of the rotating rod is thrown out under the action of centrifugal force, damaging the concrete structure on the periphery of the rotating rod and affecting the integrity of the concrete structure. At the same time, when the torsion spring drives the rotating rod to rotate back to its initial state through the rotating shaft, the locking shaft abuts against the side wall of the driving ring, achieving deceleration of the rotating rod rotating back to its initial position, avoiding the elastic potential energy stored by the torsion spring during the previous rotation being too large, resulting in the rotating rod rotating too fast during the rotation back process, and further causing the concrete adhering to the periphery of the rotating rod to be thrown out under the action of centrifugal force, damaging the concrete structure on the periphery of the rotating rod, and ensuring the integrity of the concrete structure.

[0014] 3. By reciprocating the sliding of the driving rod, the moving pipe will be driven to reciprocate through the transition strip during the sliding process of the driving rod. During the reciprocating sliding, it can reduce the adhesion of the same solidification state of concrete to the periphery of the moving pipe all the time, and different solidification states of concrete will adhere to its periphery continuously. The concrete in different states can be blocked between the two templates, and this part of the concrete will solidify together with most of the concrete, so as to achieve the solidification of the concrete during the sliding process of the moving pipe. At the same time, because the moving pipe is sliding, the concrete will not solidify on the moving pipe, thus reducing the amount of concrete adhering to the moving pipe, and ensuring the integrity of the concrete structure to the greatest extent.

[0015] Other advantages, objectives and features of the present invention will be described in the subsequent specification, and to some extent, they are obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0017] Figure 1 It is a three-dimensional view of the application of the wall-piercing tie rod of the present invention;

[0018] Figure 2 It is an exploded view of the U-shaped clamp, fixed ring and rotating rod of the present invention;

[0019] Figure 3 It is a three-dimensional view of the fixed ring of the present invention;

[0020] Figure 4 It is a partial three-dimensional view of the rotating rod of the present invention;

[0021] Figure 5 This is a three-dimensional longitudinal sectional view of the moving pipe, rotating rod, and driving rod of the present invention.

[0022] The labels in the attached drawings are as follows: formwork 1, rotating rod 2, fixing ring 3, arc groove 4, limiting block 5, slider 6, steel pipe 7, driving ring 8, locking groove 9, rotating shaft 10, locking shaft 11, moving pipe 12, driving rod 13, transition strip 14, nut 15. Specific embodiments

[0023] As Figures 1 to 5 shown, the present invention provides an anti-solidification wall-piercing tie rod for shear walls, including a mountain-shaped clamp provided on the side of two corresponding formworks 1 away from the shear wall; the mountain-shaped clamp indirectly presses against the formwork 1 by pressing against the steel pipe 7 in contact with the formwork 1; a rotating rod 2 is provided between the two mountain-shaped clamps; the rotating rod 2 vertically penetrates the two formworks 1 and is rotatably connected to the formwork 1; one of the mountain-shaped clamps is detachably connected to the rotating rod 2; a fixing ring 3 coaxial with the rotating rod 2 is provided on the other mountain-shaped clamp; an arc groove 4 coaxial with the fixing ring 3 is opened on the side of the fixing ring 3 opposite to the rotating rod 2; a plurality of limiting grooves are circularly arranged on the side wall of the arc groove 4 with the axis of the fixing ring 3 as the center; a limiting block 5 capable of extending into the arc groove 4 is slidably arranged in each limiting groove along the axial direction of the fixing ring 3; a slider 6 slidably arranged along the arc groove 4 is provided at one end of the rotating rod 2; a driving unit for driving the slider 6 to reciprocate along the arc groove 4, thereby driving the rotating rod 2 to rotate, is provided inside the fixing ring 3.

[0024] Principle and beneficial effects of the above technical solution:

[0025] After pouring concrete between two templates 1, the slider 6 is reciprocally slid in the arc-shaped groove 4 by a driving unit. During the sliding process of the slider 6, the rotating rod 2 is reciprocally rotated at the same time; during the rotation process, any two limiting blocks 5 on both sides of the slider 6 extend out of the arc-shaped groove 4, so as to change the reciprocating sliding position of the slider 6, enabling the slider 6 to achieve a small-distance arc sliding switch, or a large-distance arc sliding, or to switch between small distance and large distance, so that the sliding of the slider 6 is in an irregular state; since the slider 6 is fixedly connected to the rotating rod 2, the rotating state of the rotating rod 2 is consistent with the sliding state of the slider 6 in the arc-shaped groove 4; during the rotation process of the rotating rod 2, it always maintains active contact with the surrounding concrete, avoiding the rotating rod 2 from staying in a static state for a long time and solidifying under the action of the concrete; in the initial stage of the concrete solidification, by making the two farthest limiting blocks 5 on both sides of the slider 6 extend out, the rotating rod 2 is in a large degree of rotation, avoiding the rotating rod 2 from solidifying together with the concrete; as the concrete gradually solidifies, the reciprocating rotation degree of the rotating rod 2 is continuously reduced, so as to avoid the concrete adhered to the rotating rod 2 from damaging the concrete structure on the periphery of the rotating rod 2 under the rotation action of the rotating rod 2, thus ensuring the integrity of the concrete structure.

[0026] In the final stage of the concrete solidification, although the rotation degree of the rotating rod 2 is reduced, it still maintains a rotating state. Even when the concrete is completely solidified, the rotating rod 2 still maintains a rotating state with the concrete, so as to avoid the rotating rod 2 from being fixed as the concrete solidifies.

[0027] In this embodiment, as Figures 2 - 4 shown, the driving unit includes a driving ring 8 coaxially and rotatably connected in a fixed ring 3; a locking groove 9 is formed on the side wall of the driving ring 8 opposite to the rotating rod 2; a cylinder is arranged along the axial direction of the driving ring 8 in the locking groove 9; a rotating shaft 10 that can extend into the driving ring 8 and is rotatably connected to a mountain-shaped card is coaxially arranged on the side wall of the rotating rod 2 opposite to the locking groove 9; a torsion spring capable of resetting the rotating rod 2 is sleeved on the rotating shaft 10; one end of the torsion spring is connected to the mountain-shaped card, and the other end is connected to the rotating shaft 10; a telescopic groove is formed on the side wall of the rotating rod 2 outside the rotating shaft 10; a locking shaft 11 that can extend into the locking groove 9 is slidably connected in the telescopic groove through a spring; the telescopic shaft of the cylinder can push the locking shaft 11 to extend out of the locking groove 9.

[0028] The principle and beneficial effects of the above technical solution:

[0029] In the initial state, the telescopic shaft of the cylinder is in the retracted state, the locking shaft 11 extends into the locking groove 9, causing a limiting block 5 to protrude from the limiting groove; the driving ring 8 rotates, thereby driving the rotating rod 2 to rotate through the locking shaft 11 inserted into the locking groove 9. When the slider 6 slides to contact the limiting block 5, the telescopic shaft of the cylinder pushes the locking shaft 11 out of the locking groove 9, and the rotating shaft 10 returns to the initial state under the action of the torsion spring. When the rotating rod 2 starts to rotate, the torsion spring gives a decelerating effect, preventing the rotating rod 2 from rotating too fast and causing the concrete adhered to the periphery of the rotating rod 2 to be thrown out under the action of centrifugal force, which may damage the concrete structure on the periphery of the rotating rod 2 and affect the integrity of the concrete structure. At the same time, when the torsion spring drives the rotating rod 2 to rotate back to the initial state through the rotating shaft 10, the locking shaft 11 abuts against the side wall of the driving ring 8, achieving deceleration of the rotating rod 2 rotating back to the initial position, avoiding the torsion spring having too much elastic potential energy stored during the previous rotation, resulting in the rotating rod 2 rotating too fast during the rotation back process, and further causing the concrete adhered to the periphery of the rotating rod 2 to be thrown out under the action of centrifugal force, damaging the concrete structure on the periphery of the rotating rod 2, and ensuring the integrity of the concrete structure.

[0030] When it is necessary to drive the rotating rod 2 to rotate again, retract the telescopic shaft of the cylinder, rotate the driving ring 8, rotate the locking groove 9 to be in the same straight line as the locking shaft 11, the locking shaft 11 extends into the locking groove 9 under the action of the spring, and then rotate the driving ring 8, and the secondary rotation of the rotating rod 2 can be realized.

[0031] In this embodiment, as Figure 1 、 5 shown, a moving tube 12 perpendicular to the sliding of the template 1 is sleeved on the rotating rod 2; a moving groove is coaxially opened at one end of the rotating rod 2 away from the driving ring 8; a driving rod 13 capable of reciprocating movement is slidably connected in the moving groove; a transition groove communicating with the moving groove is opened on the periphery of the rotating rod 2; the periphery of the driving rod 13 and the inner wall of the moving tube 12 are fixedly connected through a transition strip 14 slidably arranged in the transition groove; the transition strip 14 is slidably arranged in the transition groove along the axial direction of the driving rod 13.

[0032] The principle and beneficial effects of the above technical solution:

[0033] By making the driving rod 13 slide back and forth, the driving rod 13 will drive the moving tube 12 to slide back and forth through the transition strip 14 during the sliding process. During the reciprocating sliding, the surrounding side of the moving tube 12 can be reduced from being adhered to the concrete in the same solidification state. The surrounding side will continuously adhere to the concrete in different solidification states. The concrete in different states can be blocked between the two templates 1. This part of the concrete will solidify together with most of the concrete, so that the moving tube 12 can achieve the solidification of the concrete during the sliding process. At the same time, since the moving tube 12 is sliding, the concrete will not solidify on the moving tube 12, thereby reducing the amount of concrete adhering to the moving tube 12, thereby ensuring the integrity of the concrete structure to the greatest extent.

[0034] At the same time, when the moving pipe 12 slides, the transition strip connected thereto will collide with the side wall of the transition groove, thereby generating vibration, which can make the concrete on the surrounding side more uniform and reduce the formation of air cavities in the concrete.

[0035] In this embodiment, Figure 1 As shown, there is a gap between the two ends of the moving tube 12 and the corresponding mountain-shaped cards, and the length of the moving tube 12 is greater than the distance between the two templates 1.

[0036] The principle and beneficial effects of the above technical solution:

[0037] Setting the gap can provide sliding space for the moving tube 12; setting the length of the moving tube 12 to be greater than the distance between the two templates 1 can ensure that the moving tube 12 is always in contact with the template 1 during the sliding process and will not separate from the template 1.

[0038] In this embodiment, Figure 1 As shown, a through hole is formed in the mountain-shaped clamp away from the driving ring 8; the mountain-shaped clamp is slidably sleeved on the rotating rod 2 through the through hole; and a nut 15 for tightening the mountain-shaped clamp is threadedly connected on the rotating rod 2.

[0039] The principle and beneficial effects of the above technical solution:

[0040] A through hole is opened in the mountain-shaped card and the nut 15 is used to tighten the card to facilitate the removal of the mountain-shaped card.

[0041] In this embodiment, Figure 2 As shown, there is a gap between the torsion spring and the inner wall of the drive ring 8 .

[0042] The principle and beneficial effects of the above technical solution:

[0043] The benefit of setting the gap is to prevent the torsion spring from interfering with the rotation of the drive ring 8 while releasing the elastic potential energy.

[0044] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A coagulation-preventing wall-piercing tie rod for shear walls, characterized in that: It includes U-shaped clamps arranged on the side of the corresponding formwork away from the shear wall; a rotating rod is arranged between two U-shaped clamps; the rotating rod vertically penetrates the formwork and is rotatably connected to the formwork; one of the U-shaped clamps is detachably connected to the rotating rod; a fixed ring coaxial with the rotating rod is arranged on the other U-shaped clamp; an arc-shaped groove coaxial with the fixed ring is formed on the side of the fixed ring opposite to the rotating rod; a number of limiting grooves are circularly arrayed on the side wall of the arc-shaped groove with the axis of the fixed ring as the center; a limiting block capable of extending into the arc-shaped groove is slidably arranged in each limiting groove along the axial direction of the fixed ring; a slider slidably arranged along the arc-shaped groove is arranged at one end of the rotating rod; a driving unit for driving the slider to reciprocally slide along the arc-shaped groove so as to drive the rotating rod to rotate is arranged in the fixed ring.

2. The anti-solidification wall-piercing tie rod for shear wall according to claim 1, wherein: The driving unit includes a driving ring rotatably connected coaxially in the fixed ring; a locking groove is formed on the side wall of the driving ring opposite to the rotating rod; a cylinder is arranged along the axial direction of the driving ring in the locking groove; a rotating shaft capable of extending into the driving ring and rotatably connected to the U-shaped clamp is coaxially arranged on the side wall of the rotating rod opposite to the locking groove; a torsion spring capable of resetting the rotating rod is sleeved on the rotating shaft; one end of the torsion spring is connected to the U-shaped clamp, and the other end is connected to the rotating shaft; a telescopic groove is formed on the side wall of the rotating rod outside the rotating shaft; a locking shaft capable of extending into the locking groove is slidably connected in the telescopic groove through a spring; the telescopic shaft of the cylinder can push the locking shaft to extend out of the locking groove.

3. The anti-solidification through-wall tie rod for shear walls according to claim 2, characterized in that: A moving pipe sliding perpendicular to the formwork is sleeved on the rotating rod; a moving groove is coaxially formed at one end of the rotating rod away from the driving ring; a driving rod capable of reciprocally moving is slidably connected in the moving groove; a transition groove communicating with the moving groove is formed on the circumferential side of the rotating rod; the driving rod and the moving pipe are fixedly connected through a transition strip slidably arranged in the transition groove.

4. A coagulation-proof wall-piercing tie rod for shear walls according to claim 3, characterized in that: Both ends of the moving pipe have a gap with the corresponding U-shaped clamp, and the length of the moving pipe is greater than the distance between the formworks.

5. The anti-solidification wall-through tie rod for shear walls according to claim 4, characterized in that: A through hole is formed in the U-shaped clamp in the direction away from the driving ring; the U-shaped clamp is slidably sleeved on the rotating rod through the through hole; a nut for pressing against the U-shaped clamp is threadedly connected to the rotating rod.

6. The anti-solidification wall-through tie rod for shear wall according to claim 5, wherein: There is a gap between the torsion spring and the inner wall of the ring of the driving ring.

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