A detachable water-stop screw

Abstract

This application relates to a detachable water-stop screw, and relates to the field of water-stop screws. It comprises a base rod disposed within a formwork, with locking rods disposed at both ends of the base rod, to which an insertion rod is fixedly connected. A slot is defined at the end of the base rod for inserting the insertion rod, which is detachably connected to the slot. The locking rod is provided with a clamp for tightening against the formwork. This application facilitates the removal of the portions of the water-stop screw extending from the formwork at both ends.

Description

Technical Field

[0001] The present application relates to the field of water-stop screws, and in particular to a detachable water-stop screw. Background Art

[0002] Waterstop screws are usually used in the pouring of basement shear walls to fix the formwork and control the thickness of concrete pouring.

[0003] When pouring a concrete wall, operators first set up two formworks. Steel pipes are installed on opposite sides of the two formworks to hold them in place. A waterstop screw is inserted between the two formworks, with clamps at each end to hold the steel pipes in place. A steel cage is then placed between the two formworks and concrete is poured. Once the concrete is formed, the parts of the waterstop screws that extend beyond the formwork are difficult to remove, typically requiring the operator to cut them off with an electric saw or cutter. This is a time-consuming and labor-intensive process, significantly impacting construction efficiency. Summary of the Invention

[0004] In order to facilitate the operator to remove the parts of the water-stop screw extending out of the template at both ends, the present application provides a detachable water-stop screw.

[0005] The present application provides a detachable water-stop screw adopting the following technical solution:

[0006] A detachable water-stop screw comprises a base rod arranged in a template, locking rods are provided at both ends of the base rod, an insertion rod is fixedly connected to the locking rod, a slot is provided at the end of the base rod for inserting the insertion rod, the insertion rod is detachably connected to the slot, and a clamp is provided on the locking rod for pressing against the template.

[0007] By adopting the above technical solution, after the operator installs the formwork, the base rod is located between the two formworks, and the clamp on the locking rod is pressed against the steel pipe used to fix the formwork. After the concrete between the two formworks is solidified, the operator releases the clamp and removes the rod from the slot for next use. This method replaces the cutting and disassembly method. On the one hand, it is convenient for the operator to disassemble the part of the water-stop screw that passes through the formwork. On the other hand, it also enables the locking rod to be reused, which is conducive to reducing resource waste and achieving energy conservation and environmental protection.

[0008] Optionally, a temperature sensor is further provided at the end of the base rod, and an insertion rod is also fixedly connected to the temperature sensor, and the insertion rod is detachably connected to the slot.

[0009] By adopting the above technical solution, after the concrete is formed, the operator removes the locking rods at both ends of the base rod. During the concrete consolidation process, a large amount of heat is released. If the concrete temperature is too high, it may cause the concrete wall to crack, requiring watering and curing. The plug on the temperature sensor is detachably connected to the slot, and the concrete temperature is detected in real time from point to surface. The concrete wall is then watered and cured according to the temperature to improve the performance of the concrete wall.

[0010] Optionally, a limit block is provided on the inner wall of the slot, a guide groove for inserting the limit block and a limit groove for clamping the limit block are provided on the insertion rod, the limit groove is connected to the guide groove, and the base rod is provided with a spring in the slot for pushing the slot outward.

[0011] By adopting the above technical solution, during the process of fixing the insertion rod and the slot, the operator first puts the spring into the slot, then aligns the guide groove of the insertion rod with the limit block, and inserts the insertion rod into the slot so that the limit block abuts against the end of the guide groove away from the slot, and then the operator rotates the insertion rod so that the limit block is aligned with the limit groove. After the operator releases the insertion rod, the insertion rod moves away from the spring under the thrust of the spring, and the limit block is inserted into the limit groove, so that the insertion rod can be removably fixed in the slot.

[0012] Optionally, both ends of the base rod are fixedly connected with a retaining ring, and the base rod is provided with a plurality of water stop rings between two retaining rings.

[0013] By adopting the above technical solution, the baffles at both ends of the base rod are used to abut the inner wall of the formwork. After the concrete wall is solidified, the retaining rings are embedded on both sides of the concrete wall to achieve a water-blocking effect. The retaining rings cooperate with the water-stop rings to reduce the water from seeping into the other side of the wall along the gap between the base rod and the concrete, thereby achieving an effective water-stopping effect.

[0014] Optionally, the clamp is slidably disposed on the locking rod, the locking rod is provided with a thread, and the locking rod is threadedly connected to a fastening nut for pushing the clamp to move toward the base rod.

[0015] By adopting the above technical solution, the operator screws the fastening nut to push the clamp to move, so that the clamp is pressed against the template, thereby fixing the position of the template.

[0016] Optionally, the locking rod is provided with a first sliding groove along its length direction, and the clamp is fixedly connected to a first sliding block for inserting into the first sliding groove.

[0017] By adopting the above technical solution, the first slider on the clamp is slidably set in the first sliding groove, thereby limiting the relative rotation between the clamp and the locking rod. After the concrete is solidified, the operator withdraws the clamp to release the tight effect between the clamp and the steel pipe. Then the operator flips the clamp to drive the locking rod to rotate, and then drives the insertion rod to rotate, releasing the clamping effect between the limit block and the limit groove, so that the limit block slides into the guide groove, so that the operator can pull the insertion rod on the locking rod out of the slot to realize the disassembly of the locking rod.

[0018] Optionally, the fixture includes a sliding sleeve, which is slidingly sleeved on the locking rod, and wings are hinged on both sides of the sliding sleeve for pressing against the template, and both wings are fixedly connected with a block for limiting themselves toward the base rod, and a second slider is fixedly connected in the wing plate, and a second sliding groove is provided on the locking rod for the second slider to slide.

[0019] By adopting the above technical solution, when the wing plates are pressed against the steel pipe, the blocks on the two wing plates both abut against the sliding sleeve. At this time, the second slider is disengaged from the second slide groove, and the operator can change the angle of the two wing plates to adapt to the position of the steel pipe. When the locking rod needs to be removed, the operator loosens the fastening nut and then withdraws the sliding sleeve. The wing plates are separated from the steel pipe. The operator then adjusts the angle of the two wing plates around the axis of the locking rod so that the second slider is aligned with the second slide groove. By flipping the wing plates toward the base rod, the second sliders on the two wing plates are inserted into the second slide groove, thereby driving the locking rod shaft to rotate, making it easier for the operator to remove the rod from the slot.

[0020] Optionally, a sleeve is fixedly connected to the sliding sleeve, a locking nut is threadedly connected to the sleeve, and the locking nut is used to tighten the stopper.

[0021] By adopting the above technical solution, when the blocks on both wings are in contact with the sliding sleeve, the operator rotates the locking nut so that the locking nut presses both limit blocks against the sliding sleeve. At this time, the two wings remain in the extended state, and the second slider is disengaged from the corresponding second chute, allowing the two wings to flip around the locking rod. After the operator loosens the locking nut, the wings are flipped so that the second sliders on both wings are engaged in the corresponding second chute. The operator then continues to turn the locking nut so that the locking nut is engaged between the two limit plates, preventing the two wings from returning to their original position. At this time, the two second sliders remain inserted in the second chute, making it convenient for the operator to install or remove the insertion rod from the slot.

[0022] Optionally, a locking bolt is threadedly connected to the insertion rod, a ring is sleeved on the locking bolt, and a plurality of elastic sheets for tightening the spring are fixedly connected to the side of the ring facing away from the insertion rod, and a push block for pushing the plurality of elastic sheets to open is fixedly connected to the locking bolt.

[0023] By adopting the above technical solution, the operator can detachably fix the spring to the insertion rod through the fixing assembly, which makes it easy for the operator to pull the insertion rod together with the spring out of the slot, reducing the operator's effort in removing the spring from the slot alone.

[0024] Optionally, a receiving groove is provided on the insertion rod, and the locking bolt, ring, elastic sheet and spring are all located in the receiving groove, and a column for inserting into the receiving groove and pushing the spring is fixedly connected to the bottom wall of the slot.

[0025] By adopting the above technical solution, the spring is arranged in the accommodating groove, which reduces the possibility of failure and damage of the spring caused by external factors, thereby increasing the practical life of the spring.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The insert rod on the locking rod can be detachably installed in the slot at the end of the base rod, so that the operator can remove the part of the water stop bolt protruding from the formwork after the concrete is solidified;

[0028] 2. The locking rod is detachably connected to the base rod, so that the removed locking rod can be reused, reducing resource waste and achieving energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2 This is a schematic structural diagram of the base rod and the locking rod according to Example 1 of the present application.

[0031] Figure 3 This is an exploded view of the plug rod and the socket in Example 1 of the present application.

[0032] Figure 4 This is a schematic diagram of the structure of the temperature sensor used in Example 1 of the present application.

[0033] Figure 5 This is a structural diagram of the first slider and the first sliding groove in Example 2 of the present application.

[0034] Figure 6 This is an exploded view of the second slider and the second slide groove used in Example 3 of the present application.

[0035] Figure 7 This is a cross-sectional view of the second slider according to embodiment 3 of the present application.

[0036] Figure 8 This is a cross-sectional view of the column used in Example 4 of the present application.

[0037] Figure 9 This is an exploded view of Example 4 of the present application, which is used to illustrate the elastic sheet and the locking bolt.

[0038] Explanation of the accompanying drawings: 1. Base rod; 11. Retaining ring; 12. Water stop ring; 13. Ring groove; 14. Locking rod; 15. Insert rod; 16. Slot; 17. Temperature sensor; 2. Mounting hole; 21. Limit block; 22. Guide groove; 23. Limit groove; 24. Connecting groove; 25. Spring; 26. Clamp; 27. Fastening nut; 3. First slide groove; 31. First slider; 4. Sleeve; 41. Wing plate; 42. Block; 43. Second slider; 44. Second slide groove; 45. Sleeve; 46. Locking nut; 5. Receiving groove; 51. Locking bolt; 52. Elastic sheet; 53. Push block; 54. Column; 55. Ring. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-9 This application is described in further detail.

[0040] The embodiment of the present application discloses a detachable water-stop screw. Figure 1 and Figure 2 The detachable waterstop screw comprises a cylindrical base rod 1, with disc-shaped retaining rings 11 coaxially welded to both ends of the base rod 1. A square plate-shaped waterstop ring 12 made of metal is welded to the middle position of the base rod 1 along its own axis, and the axis of the base rod 1 is perpendicular to the surface where the waterstop ring 12 is located. A circular waterstop ring 12 is also sleeved on the base rod 1 between the waterstop ring 12 and the retaining ring 11. The waterstop ring 12 is made of rubber, and a ring groove 13 is provided on the circumferential surface of the base rod 1 for embedding the circular waterstop ring 12.

[0041] like Figure 3 and Figure 4 The detachable water-stop screw further includes locking rods 14 disposed at both ends of the base rod 1. The ends of the two locking rods 14 facing the base rod 1 are coaxially fixedly connected to an insertion rod 15. Both ends of the locking rods 14 are provided with slots 16 for receiving the insertion rods 15. The detachable water-stop screw further includes a temperature sensor 17 disposed at the end of the base rod 1. The temperature sensor 17 is also fixedly connected to an insertion rod 15 for insertion into the slot 16.

[0042] The base rod 1 is provided with a mounting hole 2 connected to the slot 16. The base rod 1 is embedded with a limit block 21 in the mounting hole 2, and the limit block 21 partially extends into the slot 16. The outer circumferential surface of the insertion rod 15 is provided with a guide groove 22 for the limit block 21 to be inserted. The length direction of the guide groove 22 is parallel to the length direction of the base rod 1, and the guide groove 22 is open toward one end of the bottom wall of the slot 16. The base rod 1 is also provided with a limit groove 23 for embedding the limit block 21. The limit groove 23 and the guide groove 22 are spaced apart around the circumference of the base rod 1. The guide groove 22 and the limit groove 23 are connected to one end of the bottom wall of the slot 16 away from the slot 16 by a connecting groove 24, so that the limit block 21 can slide into the limit groove 23 through the guide groove 22. The base rod 1 is provided with a spring 25 in the slot 16, and the spring 25 pushes the insertion rod 15 out of the slot 16.

[0043] The operator aligns the guide groove 22 on the insertion rod 15 with the limit block 21, then inserts the insertion rod 15 into the slot 16 and compresses the spring 25. At this time, the limit block 21 is inserted into the end of the guide groove 22 away from the opening and aligned with the connecting groove 24. Then the operator rotates the insertion rod 15 to move the limit block 21 to align with the limit groove 23. Finally, the operator releases the insertion rod 15. Under the elastic force of the spring 25, the insertion rod 15 moves an end distance toward the outside of the slot 16, so that the limit block 21 is engaged in the limit groove 23.

[0044] like Figure 2 A clamp 26 is provided on the locking rod 14 so as to slide along its own axial direction. The clamp 26 is used to clamp the steel pipe to fix the template. A thread is provided on the half section of the locking rod 14 away from the insertion rod 15. The locking rod 14 is threadedly connected with a fastening nut 27 at the threaded section, and the fastening nut 27 is located on the side of the clamp 26 away from the insertion rod 15. The operator drives the clamp 26 toward the base rod 1 by screwing the fastening nut 27, so that the clamp 26 can be tightened against the steel pipe.

[0045] The embodiment of the present application operates as follows: A locking rod 14 is connected to each end of the base rod 1. When securing the mold, the base rod 1 is positioned within the mold, and the retaining rings 11 at both ends of the base rod 1 are pressed against the mold. The operator tightens the fastening nut 27, causing the fastening nut 27 to push the clamp 26 against the steel pipe outside the mold, thereby securing the mold. The operator then pours concrete within the mold. After the concrete wall is formed, the operator loosens the fastening nut 27 to release the clamp 26 from the steel pipe. The operator then pushes the locking rod 14, causing the insertion rod 15 to move toward the spring 25 and compress the spring 25. During this process, the limit block 21 disengages from the limit groove 23 and aligns with the connecting groove 24. The operator rotates the locking rod 14, causing the limit block 21 to slide into the connecting groove 24 and align with the guide groove 22. Finally, the operator pulls outward, disengaging the limit block 21 from the guide groove and releasing the connection between the locking rod 14 and the base rod 1. The disassembled locking rod 14 can be used repeatedly, which is beneficial to energy saving and environmental protection.

[0046] After removing the formwork, the operator installs the rod 15 of the temperature sensor 17 into the slot 16. By installing several temperature sensors 17 on the wall, the concrete wall temperature can be monitored from point to point, and watering and curing can be performed in accordance with temperature changes, which helps improve the quality of the concrete wall. After the concrete wall is completely solidified, the operator removes the temperature sensor 17.

[0047] Example 2

[0048] like Figure 5 The difference between this embodiment and embodiment 1 is that a first sliding groove 3 is provided on the locking rod 14, and a first slider 31 is fixedly connected to the fixture 26 at a position corresponding to the locking rod 14. The first slider 31 is slidably arranged in the first sliding groove 3 along the length direction of the locking rod 14. When removing and installing the shaft locking rod 14, the operator needs to rotate the locking rod 14. By inserting the first slider 31 into the first slot 16, the operator can rotate the locking rod 14 by rotating the fixture 26. After the concrete wall is solidified, the end of the locking rod 14 facing the base rod 1 may be partially solidified in the concrete. By rotating the fixture 26 to rotate the locking rod 14, the operator can more easily remove the locking rod 14 from the fixture 26.

[0049] Example 3

[0050] like Figure 6 and Figure 7This embodiment differs from Embodiment 1 in that the fixture 26 includes a sleeve 4 that slides onto the locking rod 14, with the sleeve 4 sliding in a direction parallel to the length of the locking rod 14. Wings 41 are hinged on both sides of the sleeve 4 for abutting the steel pipe and securing the formwork. A stopper 42 for abutting the sleeve 4 is fixedly connected to the sides of the two wings 41 facing away from the locking rod 14. A second slider 43 is fixedly connected to the sides of the two wings 41 facing away from the stopper 42. A second slot 44 is defined in the locking rod 14 for movement of the second slider 43, and the second slider 43 is slidably disposed within the second slot 44 along the axial direction of the locking rod 14. When the stopper 42 abuts the sleeve 4, the second slider 43 disengages from the corresponding second slot 44.

[0051] A sleeve 45 is fixedly connected to one end of the sliding sleeve 4 near the two stops 42. The sleeve 45 is slidably mounted on the locking rod 14. A locking nut 46 is threadedly connected to the sleeve 45 for compressing the two stops 42. When the locking nut 46 presses the two stops 42 against the sliding sleeve 4, the second slider 43 disengages from the corresponding second chute 44. When both wing plates 41 are flipped over so that the second slider 43 is engaged in the second chute 44, the operator twists the locking nut 46 so that the locking nut 46 is engaged between the two stops 42, preventing the wing plates 41 from returning to their original position, making it easier for the operator to control the axial movement or rotation of the locking rod 14.

[0052] Example 4

[0053] like Figure 8 and Figure 9 This embodiment differs from Example 1 in that a receiving groove 5 is defined on the end surface of the insertion rod 15 facing the base rod 1, and a spring 25 is disposed within the receiving groove 5. A locking bolt 51 is threadedly connected to the bottom wall of the receiving groove 5 and is inserted into the spring 25. A collar 55 is axially slidably sleeved on the locking bolt 51. A plurality of elastic plates 52 are fixedly connected to the side of the collar 55 facing away from the bottom wall of the receiving groove 5. The plurality of elastic plates 52 are evenly arranged along the circumference of the collar 55. A push block 53 is fixedly connected to the locking bolt 51 for pushing each elastic plate 52 outward and against the spring 25. The push block 53 is truncated cone-shaped, and its diameter gradually decreases toward the collar 55. A column 54 is fixedly connected to the base rod 1 within the locking rod 14, which is inserted into the receiving groove 5 and abuts the spring 25.

[0054] In the initial state, the locking bolt 51 is threadedly connected to the bottom wall of the receiving groove 5, and the collar 55 is sleeved on the locking bolt 51. At this time, the multiple elastic pieces 52 on the collar 55 are in a closed state. When installing the spring 25, the operator places the spring 25 into the receiving groove 5, and the collar 55 and the locking bolt 51 are both located inside the spring 25. By tightening the locking bolt 51, the operator causes the push block 53 to spread the multiple elastic pieces 52 and press the elastic pieces 52 against the spring 25, thereby achieving a detachable fixation of the spring 25 in the receiving groove 5.

[0055] The spring 25 is fixedly connected to the receiving groove 5 on the insertion rod 15. On the one hand, there is no need to spend extra effort to remove the spring 25 when removing the locking rod 14 or the temperature sensor 17; on the other hand, the spring 25 is located in the receiving groove 5 to protect the spring 25, thereby reducing the possibility of the spring 25 being damaged by collision when the worker removes the locking rod 14 or the temperature sensor 17.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A detachable water-stop screw, characterized by: The invention comprises a base rod (1) arranged in a template, wherein both ends of the base rod (1) are provided with locking rods (14), an insertion rod (15) is fixedly connected to the locking rod (14), a slot (16) for inserting the insertion rod (15) is provided at the end of the base rod (1), the insertion rod (15) is detachably connected to the slot (16), and a clamp (26) for pressing against the template is provided on the locking rod (14); It also includes a temperature sensor (17) arranged at the end of the base rod (1), and the temperature sensor (17) is also fixedly connected to the insertion rod (15), and the insertion rod (15) is detachably connected to the slot (16); A limit block (21) is provided on the inner wall of the slot (16); a guide groove (22) for inserting the limit block (21) and a limit groove (23) for engaging the limit block (21) are provided on the insertion rod (15); the limit groove (23) is communicated with the guide groove (22); and a spring (25) for pushing the slot (16) outward is provided on the base rod (1) in the slot (16); The fixture (26) includes a sliding sleeve (4), the sliding sleeve (4) is slidingly sleeved on the locking rod (14), and wings (41) are hinged on both sides of the sliding sleeve (4) for pressing against the template. The two wings (41) are fixedly connected to a stopper (42) for limiting the movement of the two wings toward the base rod (1), and a second slider (43) is fixedly connected inside the wing (41). The locking rod (14) is provided with a second sliding groove (44) for the second slider (43) to slide. A sleeve (45) is fixedly connected to the sliding sleeve (4), and a locking nut (46) is threadedly connected to the sleeve (45). The locking nut (46) is used to tighten the stopper (42).

2. The detachable water-stop screw according to claim 1, characterized in that: Both ends of the base rod (1) are fixedly connected with retaining rings (11), and the base rod (1) is provided with a plurality of water stop rings (12) between the two retaining rings (11).

3. The detachable water-stop screw according to claim 1, characterized in that: The clamp (26) is slidably arranged on the locking rod (14), the locking rod (14) is provided with a thread, and the locking rod (14) is threadedly connected to a fastening nut (27) for pushing the clamp (26) toward the base rod (1).

4. The detachable water-stop screw according to claim 1, characterized in that: A locking bolt (51) is threadedly connected to the insertion rod (15), a collar (55) is sleeved on the locking bolt (51), and a plurality of elastic sheets (52) for tightening the spring (25) are fixedly connected to the side of the collar (55) facing away from the insertion rod (15), and a push block (53) for pushing the plurality of elastic sheets (52) to open is fixedly connected to the locking bolt (51).

5. The detachable water-stop screw according to claim 4, characterized in that: The insert rod (15) is provided with a receiving groove (5), the locking bolt (51), the collar (55), the elastic sheet (52) and the spring (25) are all located in the receiving groove (5), and a column (54) for inserting into the receiving groove (5) and pushing the spring (25) is fixedly connected to the bottom wall of the slot (16).

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