Sectional type water stop screw

Abstract

A screw body is divided into a middle screw and two end screws, after a wall is poured, the end screws can be screwed off respectively to be reused, the middle screw is completely located in the wall and does not need to be cut off, use difficulty can be lowered, and construction consumables can be effectively reduced. The sectional type water stop screw rod is totally provided with three sections, the number of assemblies is small, and storage and management can be facilitated while it is guaranteed that construction is convenient; the edge of the water stop piece is designed to extend to form a reinforcing part surrounding the water stop piece in the circumferential direction, the contact area of the water stop piece and concrete in the circumferential direction is increased through the reinforcing part, the water stop piece can be effectively prevented from loosening in the concrete when the end screw is screwed off, and therefore the risk that water leaks and seeps due to the fact that water bypasses the water stop piece is reduced; the problems that an existing sectional type water stop screw is inconvenient to use and poor in water stop effect can be effectively solved, and the effects of reducing the use difficulty and improving the water stop capacity are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a segmented water-stopping screw. Background Art

[0002] In the pouring construction of concrete walls, the tension screw is one of the most common formwork support parts. The tension screw includes a screw body, a mountain clip and a fastening nut. For some walls with waterproofing and anti-seepage requirements, a water stop plate is also provided in the middle of the screw body. The screw body vertically passes through the water stop plate to obtain a water stop screw. The presence of the water stop plate requires water to bypass the water stop plate when penetrating along the screw body, which is beneficial to change the water penetration path, increase the water penetration distance, and thus reduce the possibility of penetration.

[0003] After the existing water-stop screws are removed from the formwork, the exposed part outside the wall needs to be cut off, which not only causes material waste, but also easily causes the screw body and the water-stop plate to loosen inside the wall during cutting, resulting in a large gap between the screw body and the water-stop plate and the wall concrete, thereby increasing the risk of water leakage and seepage; Chinese patent CN102797355A discloses a revolving through-wall bolt for wall building formwork, which divides the screw body into an intermediate screw, two connecting screws and two end screws, the two connecting screws are respectively threadedly connected to the two ends of the intermediate screw, and the two end screws are respectively connected to the outer ends of the two connecting screws, the water-stop plate is set on the intermediate screw, the mountain-shaped card is set on the end screw as an outer stopper, and an inner stopper is set at the inner end of the connecting screw for abutting against the inner side of the formwork to maintain the distance between the formworks on both sides; in the wall After the pouring of the body is completed, the end screws and connecting screws can be unscrewed and reused respectively. The middle screw is completely located in the wall and does not need to be cut off, which can effectively reduce construction consumables. However, the waterstop screw is divided into five sections and has many components, which is not only inconvenient to store and manage, but also makes the installation and disassembly steps numerous and troublesome to use. In addition, compared with cutting, unscrewing the end screws and connecting screws that are threadedly connected at both ends of the middle screw in sequence can reduce the impact on the middle screw and the waterstop thereon. However, when the end screws and connecting screws are unscrewed, the middle screw and the waterstop tend to rotate accordingly. Since the waterstop is thin, the area of ​​concrete in contact with it in the circumferential direction is small and the pressure is large, so it is easy to be squeezed, collapsed or damaged, thereby loosening the waterstop in the concrete, causing water to bypass the waterstop and increase the risk of leakage and seepage. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a segmented water-stop screw to solve the technical problems of the existing segmented water-stop screw being inconvenient to use and having poor water-stopping effect, thereby achieving the effect of reducing the difficulty of use and improving the water-stopping ability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A segmented waterstop screw comprises an intermediate screw, the middle part of which vertically passes through a plate-shaped waterstop sheet and is fixed, the edge of the waterstop sheet has reinforcement parts which vertically extend toward both sides of the waterstop sheet, the reinforcement parts are connected end to end in the circumferential direction of the intermediate screw and surround the waterstop sheet; the two ends of the intermediate screw are respectively threadedly connected with coaxial end screws, an axially movable mountain-shaped clamp is mounted on the end screw, and a fastening nut is threadedly connected to the outer side of the mountain-shaped clamp on the end screw.

[0007] Furthermore, the water stop piece is square, the reinforcement part is frame-shaped and matches the size of the water stop piece, and the four sides of the water stop piece are respectively connected to the inner side surface of the reinforcement part.

[0008] Furthermore, both ends of the intermediate screw are threaded rod sections with external threads, and an internal threaded hole matching the threaded rod section is opened on the inner end surface of the end screw, and the threaded rod section is threadedly connected to the internal threaded hole.

[0009] Furthermore, a conical sleeve is sleeved on the inner end of the end screw, which is truncated cone-shaped with the small diameter end facing inward. The inner end of the end screw protrudes radially to form a circle of limiting portion, which abuts against the small diameter end of the conical sleeve.

[0010] Furthermore, the inward end of the through hole of the conical sleeve for sleeve fitting has an expanded hole matched with the limiting portion, and the limiting portion is located in the expanded hole.

[0011] Furthermore, the inner end of the end screw has a turnover rod section with a regular hexagonal cross-sectional profile, the through hole on the conical sleeve for sleeve fitting is adapted to the turnover rod section, and the turnover rod section is connected to the limiting portion.

[0012] Furthermore, one end of the turnover rod section facing outwards extends out of the conical sleeve.

[0013] Furthermore, the outer end of the end screw is a fastening rod section with external threads, the fastening nut is threadedly connected to the fastening rod section, and the mountain-shaped clamp is located on the smooth rod section between the fastening rod section and the turnover rod section.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The segmented water-stop screw of the utility model divides the screw body into a middle screw and two end screws. After the wall is poured, the end screws can be unscrewed and reused respectively. The middle screw is completely located in the wall and does not need to be cut off, which not only reduces the difficulty of use but also effectively reduces construction consumables. The screw body is divided into three sections with a small number of components, which can ensure convenient construction while also facilitating storage and management.

[0016] 2. The segmented waterstop screw of the utility model is designed to extend the edge of the waterstop plate to form a reinforcement portion circumferentially surrounding the waterstop plate. The waterstop plate increases the contact area with the concrete in the circumferential direction through the reinforcement portion. When the end screw is unscrewed, the concrete on the circumference of the waterstop plate is not easily squeezed, collapsed or damaged, which can effectively prevent the waterstop plate from loosening in the concrete, thereby reducing the risk of water bypassing the waterstop plate to cause leakage and seepage.

[0017] 3. The segmented waterstop screw described in the utility model and the reinforcement part arranged around the waterstop plate connection can not only improve the structural strength of the waterstop plate, but also make the axial penetration path of water bypassing the waterstop plate longer and more complex, which can effectively solve the problems of the existing segmented waterstop screw being inconvenient to use and having poor waterstopping effect, and achieve the effect of reducing the difficulty of use and improving the waterstopping ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the segmented water-stop screw described in Example 1;

[0019] Figure 2 It is a side view of the segmented water-stop screw described in Example 1;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross section along AA;

[0021] Figure 4 A three-dimensional diagram of the tapered sleeve described in Example 1;

[0022] Figure 5 A three-dimensional diagram of the end screw described in Example 2;

[0023] Figure 6 This is a diagram showing the use status of the segmented water-stop screw described in Example 1;

[0024] Figure 7 A three-dimensional diagram of the end screw described in Example 1;

[0025] Among them, the middle screw 1, the threaded rod section 11, the water stop plate 2, the reinforcement part 21, the end screw 3, the fastening rod section 31, the limiting part 32, the turnover rod section 33, the bare rod section 34, the mountain-shaped card 4, the fastening nut 5, the conical sleeve 6, the through hole 61, the expanded hole 62, the concrete 71, the template 72, the vertical back rib 73, and the horizontal back rib 74. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0027] Embodiment 1:

[0028] See also Figure 1 and Figure 3 A segmented water-stop screw comprises an intermediate screw 1, the middle part of which vertically passes through a plate-shaped water-stop sheet 2 and is fixed, and the edge of the water-stop sheet 2 has a reinforcing portion 21 extending vertically toward both sides of the water-stop sheet 2, and the reinforcing portion 21 is connected end to end in the circumferential direction of the intermediate screw 1 and surrounds the water-stop sheet 2; both ends of the intermediate screw 1 are respectively threadedly connected with coaxial end screws 3, and the end screw 3 is provided with an axially slidable mountain-shaped clip 4, and the end screw 3 is threadedly connected with a fastening nut 5 on the outer side of the mountain-shaped clip 4; in this embodiment, the water-stop sheet 2 is square, the reinforcing portion 21 is frame-shaped and matches the size of the water-stop sheet 2, and the four sides of the water-stop sheet 2 are respectively connected to the inner side surface of the reinforcing portion 21; the outer end of the end screw 3 is a fastening rod segment 31 with an external thread, and the fastening nut 5 is threadedly connected to the fastening rod segment 31.

[0029] The segmented water-stop screw of the utility model divides the screw body into an intermediate screw 1 and two end screws 3. After the wall is poured, the end screws 3 can be unscrewed and reused respectively. The intermediate screw 1 is completely located in the wall and does not need to be cut off, which not only reduces the difficulty of use but also effectively reduces construction consumables. The segmented water-stop screw has three sections and a small number of components, which can ensure the convenience of construction while also facilitating storage and management. The edge of the water-stop sheet 2 is designed to extend to form a reinforcement portion 21 circumferentially surrounding the water-stop sheet 2. The water-stop sheet 2 increases the contact area with the concrete in the circumferential direction through the reinforcement portion 21. When the end screw 3 is unscrewed, The concrete on the circumference of the waterstop plate 2 is not easily squeezed, collapsed or damaged, which can effectively prevent the waterstop plate 2 from loosening in the concrete, thereby reducing the risk of water bypassing the waterstop plate 2 to cause leakage and seepage; in addition, the reinforcement part 21 connected around the waterstop plate 2 can not only improve the structural strength of the waterstop plate 2, but also make the axial penetration path of water bypassing the waterstop plate 2 longer and more complex, thereby further reducing the risk of water bypassing the waterstop plate 2 to cause leakage and seepage; the segmented waterstop screw described in the utility model can effectively solve the problems of the existing segmented waterstop screw being inconvenient to use and having poor waterstopping effect, and achieves the effect of reducing the difficulty of use and improving the waterstop ability.

[0030] See also Figure 2 and Figure 3 The two ends of the intermediate screw rod 1 are threaded rod sections 11 with external threads, and the inner end surface of the end screw rod 3 is provided with an internal threaded hole matching the threaded rod section 11, and the threaded rod section 11 is threadedly connected to the internal threaded hole; in this way, when in use, the overall length of the segmented water-stop screw can be controlled by adjusting the length of the threaded rod section 11 extending into the internal threaded hole to meet the requirements of wall casting of different thicknesses; the end screw rod 3 is an internal thread, so that a tapered sleeve 6 is arranged at the inner end of the end screw rod 3.

[0031] See also Figure 1 , Figure 4 and Figure 7 A conical sleeve 6 is sleeved on the end screw 3 near the inner end. The conical sleeve 6 is truncated cone-shaped with the small diameter end facing inward. The inner end of the end screw 3 is radially protruded to form a circle of limiting portion 32; the inward end of the through hole 61 on the conical sleeve 6 for sleeve installation has an expanded hole 62 adapted to the limiting portion 32, and the limiting portion 32 is located in the expanded hole 62; during implementation, the conical sleeve 6 can be made of polyethylene or PVC.

[0032] For further understanding of this solution, please refer to Figure 6 When pouring the wall, first connect the end screw 3 with the middle screw 1, so that the end screw 3 passes through the reserved hole on the template 72, and then set the horizontal and vertical back ribs 73 on the outside of the template 72, put the mountain card 4 on the end screw 3 and screw in the fastening nut 5, tighten the fastening nut 5 to push the mountain card 4 to move inward, and the fastening nut 5, the mountain card 4, the horizontal back rib 74, the template 72 and the conical sleeve 6 are abutted in turn, so that the distance between the two templates 72 remains unchanged, and then pour concrete 71 between the two templates 72 to obtain the wall; 1) When in use, the large diameter end of the conical sleeve 6 is used to The inner side surfaces of the templates 72 are abutted to maintain the spacing between the templates 72 on both sides; 2) after the wall is poured, the conical sleeve 6 leaves the wall with the end screw 3, leaving a groove on the wall surface and exposing part of the threaded rod section 11 of the middle screw 1, so that in subsequent construction, scaffolding and other construction auxiliary structures can be connected based on the exposed external threaded rod; 3) the conical sleeve 6 leaves the wall to leave a groove on the wall surface, which is more convenient for waterproof filling and repair later than the small holes caused by the end screw 3 leaving alone; 4) the conical sleeve 6 is truncated cone-shaped with the small diameter end facing inward, so that it can be separated from the concrete 71 when the end screw 3 is unscrewed.

[0033] See also Figure 2 , Figure 4 and Figure 7 The inner end of the end screw 3 has a turnover rod section 33 with a regular hexagonal cross-sectional profile. The through hole 61 on the tapered sleeve 6 for sleeve fitting is adapted to the turnover rod section 33. The inner end of the turnover rod section 33 is connected to the limiting portion 32, and the outer end extends out of the tapered sleeve 6. The mountain-shaped clamp 4 is located on the bare rod section 34 between the fastening rod section 31 and the turnover rod section 33; in this way, the tapered sleeve 6 is connected to the end screw 3 in synchronous rotation. After the wall is cast, when the end screw 3 is loosened, the tapered sleeve 6 rotates with the end screw 3, which is conducive to the separation of the tapered sleeve 6 from the concrete 71; the outer end of the turnover rod section 33 extends out of the tapered sleeve 6. After the wall is cast and the template 72 is removed, it is convenient to use a wrench or other tools to apply force to the turnover rod section 33 to loosen and remove the end screw 3.

[0034] Embodiment 2:

[0035] See also Figure 5, which is different from Example 1, in that the inner end of the end screw 3 has a revolving rod segment 33 with a regular hexagonal cross-sectional profile and a patterned rod segment 35 with anti-slip patterns on the outside, the patterned rod segment 35 is connected to the limiting portion 32, the conical sleeve 6 is sleeved on the patterned rod segment 35, and the revolving rod segment 33 is located on the side of the conical sleeve 6 away from the intermediate screw 1; in this way, the patterned rod segment 35 enables the conical sleeve 6 to be synchronously rotated and connected with the end screw 3 through the anti-slip patterns.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A segmented water-stop screw, comprising an intermediate screw, the middle portion of which vertically passes through a plate-shaped water-stop sheet and is fixed, characterized in that: The edge of the water stop plate has reinforcement parts extending vertically toward both sides of the water stop plate, and the reinforcement parts are connected end to end in the circumferential direction of the middle screw and surround the water stop plate; the two ends of the middle screw are respectively threadedly connected with coaxial end screws, and the end screws are provided with axially movable mountain-shaped clips, and the end screws are threadedly connected with fastening nuts on the outer side of the mountain-shaped clips.

2. A segmented water-stop screw according to claim 1, characterized in that: The water stop piece is square, the reinforcement part is frame-shaped and matches the size of the water stop piece, and the four sides of the water stop piece are respectively connected with the inner side surface of the reinforcement part.

3. According to claim 1, a segmented water-stop screw, characterized in that: The two ends of the intermediate screw rod are threaded rod sections with external threads, and the inner end surface of the end screw rod is provided with an internal threaded hole matching the threaded rod section, and the threaded rod section is threadedly connected to the internal threaded hole.

4. A segmented water-stop screw according to claim 3, characterized in that: The inner end of the end screw is sleeved with a tapered sleeve, which is truncated and has a small diameter end facing inward. The inner end of the end screw is radially protruding to form a circle of limiting parts, which abut against the small diameter end of the tapered sleeve.

5. A segmented water-stop screw according to claim 4, characterized in that: The inward end of the through hole of the conical sleeve for sleeve fitting has an expanded hole matched with the limiting portion, and the limiting portion is located in the expanded hole.

6. According to claim 4, a segmented water-stop screw is characterized in that: The inner end of the end screw has a circumferential rod section with a regular hexagonal cross-sectional profile, the through hole on the conical sleeve for sleeve fitting is matched with the circumferential rod section, and the circumferential rod section is connected with the limiting part.

7. A segmented water-stop screw according to claim 6, characterized in that: The outward end of the turnover rod section extends out of the conical sleeve.

8. The segmented water-stop screw according to claim 6, characterized in that: The outer end of the end screw is a fastening rod section with external threads, the fastening nut is threadedly connected to the fastening rod section, and the mountain-shaped clamp is located on the smooth rod section between the fastening rod section and the turnover rod section.

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