Environment-friendly low-temperature-resistant PVC (polyvinyl chloride) waterstop
By designing perforation, threaded holes and pushing mechanisms on the PVC water stop, combining rubber ring and glue seal, the problem of slurry leakage during fixing is solved, and the connection and welding process is simplified to achieve better sealing Effect and ease of use.
Patent Information
- Application Number
- CN202411263338.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing PVC water stops are prone to puncture cracks and cause slurry leakage when fixed to the template.
An environmentally friendly low-temperature resistant PVC water stop is designed. By penetrating through the hole at one end of the water stop bar, threaded holes and threaded rods are installed at the lower end of the main body of the water stop band, combined with the pushing mechanism and rubber ring, sealing with glue to avoid slurry leakage. An opening is also opened at one end of the water stop belt main body for easy connection and welding.
It effectively avoids the leakage of slurry during installation, improves the sealing effect, and simplifies the connection and welding process of the water stop.
Smart Images
Figure CN119102299A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of waterstop strips, in particular to an environmentally friendly low-temperature resistant PVC waterstop strip. Background Art
[0002] The PVC composite material obtained by blending and modification of polyvinyl chloride (PVC) has the advantages of good mechanical properties, chemical corrosion resistance, environmental protection, low temperature resistance, etc., and has a wide range of applications, among which waterstop is one of its important applications. The waterstop is mainly used to be set at construction joints, settlement joints and deformation joints when concrete is cast in place. It is poured as one with the concrete to prevent leakage at the joints. The existing PVC waterstop, such as the PVC waterstop with a central hole disclosed in the authorization announcement number CN221137701U, has a simple structure and a reasonable design. The bottom of the base plate is flat, and the two wing ends are flat anchor ends, which are convenient for construction and installation and waterstop fixation. By arranging symmetrical wing plate ribs on both sides of the wing plate, the PVC waterstop is placed at the bottom of the concrete casting layer during flat and slope construction, and the waterstop is stopped by relying on the wing plate and the top surface of the base plate. The concrete on both sides of the wing plate is easy to vibrate and compact, thereby ensuring the waterstop effect.
[0003] The existing waterstop for plates is similar to the above-mentioned prior art, with only one side provided with a waterstop strip and the other side fixed to the formwork. Then, concrete pouring can be carried out between the plates. When the existing waterstop is fixed to the formwork, it is generally fixed by rivets. The waterstop is nailed to the formwork. During the fixing process, since the waterstop needs to be punctured, cracks may appear on the sides of the puncture site, resulting in leakage during pouring. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides an environmentally friendly low-temperature resistant PVC waterstop which will not rupture or leak after being fixed to a formwork.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an environmentally friendly, low-temperature resistant PVC waterstop, comprising a waterstop body, a plurality of waterstop strips are fixedly installed on the upper end of the waterstop body, some of the waterstop strips have a through hole at one end, a plurality of threaded holes connected to the through hole are opened at the lower end of the waterstop body, a threaded rod is threadedly connected to the threaded hole, a through hole is opened at the upper end of the threaded rod, a retaining ring is fixedly installed in the through hole, a fixing nail slidably connected to the retaining ring is set in the through hole, a fixing rod is fixedly installed on the upper end of the fixing nail, a connecting mechanism is fixedly installed on the upper end of the fixing rod, the connecting mechanism comprises a fixing block, a rubber ring is fixedly sleeved on the outer side of the lower end of the fixing block, a placement cavity is opened at the upper end of the fixing rod, a plastic tube filled with glue is slidably set in the placement cavity, a placement groove is opened at the bottom of the placement cavity, and a pushing mechanism is set in the placement groove for pushing the glue in the plastic tube out.
[0006] Preferably, the connecting mechanism also includes a cavity opened in the fixed block, the cavity is connected to the placement cavity, the lower end of the fixed block is conical, the bottom of the cavity is conical, a plurality of liquid outlets are opened at the bottom of the cavity, and a connecting groove is opened on the upper wall of the cavity for sliding connection with the plastic tube.
[0007] Preferably, the pushing mechanism includes a slider slidably connected to the placement groove, a circular cavity is opened inside the slider, a plurality of connection ports connected to the circular cavity are opened on the outer side of the slider, a cannula connected to the circular cavity is fixedly connected to the upper end of the slider, a sharp cutting head is provided at the upper end of the cannula, and a push rod slidably connected to the fixed rod is fixedly connected to the lower end of the slider.
[0008] Preferably, a pressing ring is provided on the fixed sleeve outside the fixing block, and the pressing ring is located at the upper end of the rubber ring.
[0009] Preferably, a conical ring is fixedly mounted on the upper end of the threaded rod, and the upper end of the conical ring is fitted with the lower end of the fixing block.
[0010] Preferably, a conical block is fixedly mounted on the bottom of the circular cavity.
[0011] Preferably, a soft rubber plate is fixedly mounted on the lower end of the sliding block, and a soft rubber layer is provided at the bottom of the cavity.
[0012] Preferably, a limiting groove is provided on the circumference of the lower end of the threaded hole, and a limiting compression pad is fixedly installed on the circumference of the lower end of the threaded rod.
[0013] Preferably, a sealing gasket is fixedly installed at the lower end of the through hole.
[0014] Preferably, an opening is provided at one end of the waterstop body, and a connecting strip corresponding to the position of the opening is fixedly mounted at the other end of the waterstop body.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The present invention provides a through hole through one end of a waterstop strip of a waterstop belt body, provides a threaded hole connected with the through hole at the lower end of the waterstop belt body, and slides a fixing nail in a threaded rod in the threaded hole. When the waterstop belt body needs to be fixed on an external template, an external force is used to hit the waterstop strip part outside the fixing nail, and one end of the fixing nail is driven into the template. The waterstop strip and the through hole are blocked to avoid leakage of slurry after the waterstop belt body is installed.
[0017] 2. The present invention fixes a fixed block on the upper end of a fixed rod at the upper end of a fixed nail, opens a plurality of liquid outlets at the bottom of a placement cavity of the fixed block, and fixedly sleeves a rubber ring on the outer side of the lower end of the fixed block. When struck with external force, one end of the fixed nail is driven into the template, and at the same time, the fixed block is driven downward, so that the rubber ring fits with the main part of the waterstop in the perforation. Before fitting, the glue in the plastic tube can be released through the cooperation of the pushing mechanism to adhere the rubber ring to the main part of the waterstop in the perforation for sealing, thereby avoiding rupture of the waterstop strip and leakage of slurry during striking. The glue released in advance will also penetrate into the gap between the threaded hole and the threaded rod for better sealing.
[0018] 3. The present invention sets a sealed plastic tube to hold glue to prevent air leakage from causing glue solidification. When the fixing nail is hit, the slider will move up to push the plastic tube until the plastic tube is limited. The slider continues to move up, so that the sharp cutting head of the insert is inserted into the plastic tube, and the glue in the plastic tube is released, leaking into the cavity through the connecting port, and then leaking into the perforation through the liquid outlet, and is used to stick the rubber ring to the main part of the waterstop in the perforation to achieve sealing.
[0019] 4. The present invention opens an opening at one end of the waterstop body, and fixes a connecting strip corresponding to the opening position at the other end of the waterstop body. When another waterstop body needs to be connected after a roll of waterstop body is used up, the connecting strip of one waterstop body is placed in the opening of the other waterstop body, and then hot-melt welding equipment is used for welding, without the need to cut matching welding strips in advance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;
[0021] Figure 2 It is a schematic diagram of the overall three-dimensional cross-sectional structure of the present invention;
[0022] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;
[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of B;
[0024] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of C;
[0025] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the threaded rod of the present invention;
[0026] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the slider of the present invention;
[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the waterstop main body of the present invention.
[0028] In the figure: 1. waterstop body; 2. connecting strip; 3. waterstop strip; 4. opening; 5. perforation; 6. threaded rod; 7. fixing nail; 8. limiting extrusion pad; 9. retaining ring; 10. fixing block; 11. connecting groove; 12. fixing rod; 13. through hole; 14. placement groove; 15. push rod; 16. plastic tube; 17. rubber ring; 18. extrusion ring; 19. liquid outlet; 20. soft rubber soft plate; 21. slider; 22. connecting port; 23. insert tube; 24. conical block; 25. conical ring; 26. placement cavity; 27. limiting groove; 28. threaded hole; 29. cavity; 30. sealing cushion; 31. circular cavity. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0030] Example
[0031] See also Figure 1-Figure 8 , an environmentally friendly low-temperature resistant PVC waterstop, comprising a waterstop body 1, a plurality of waterstop strips 3 are fixedly installed on the upper end of the waterstop body 1, one end of some of the waterstop strips 3 is penetrated with a through hole 5, a plurality of threaded holes 28 connected with the through hole 5 are opened at the lower end of the waterstop body 1, a threaded rod 6 is threadedly connected to the threaded hole 28, a through hole 13 is penetrated at the upper end of the threaded rod 6, a retaining ring 9 is fixedly installed in the through hole 13, a fixing nail 7 slidably connected to the retaining ring 9 is penetrated in the through hole 13, a fixing rod 12 is fixedly installed on the upper end of the fixing nail 7, when the waterstop body 1 needs to be fixed to the external template, the part of the waterstop strip 3 outside the fixing nail 7 is hit by external force, and one end of the fixing nail 7 is driven into the template, and the leakage of slurry caused by the installation of the waterstop body 1 can be avoided by blocking the waterstop strip 3 and the through hole 5;
[0032] The upper end of the fixed rod 12 is fixedly installed with a connecting mechanism, which includes a fixed block 10, a rubber ring 17 is fixedly sleeved on the outer side of the lower end of the fixed block 10, a placement cavity 26 is opened at the upper end of the fixed rod 12, a plastic tube 16 filled with glue is slidably arranged in the placement cavity 26, a placement groove 14 is opened at the bottom of the placement cavity 26, and a pushing mechanism is arranged in the placement groove 14 for pushing out the glue in the plastic tube 16, the connecting mechanism also includes a cavity 29 opened in the fixed block 10, the cavity 29 is connected to the placement cavity 26, the lower end of the fixed block 10 is conical, the bottom of the cavity 29 is conical, and the upper end of the threaded rod 6 is fixedly installed with a conical ring 25, and the upper end of the conical ring 25 is connected to the lower end of the fixed block 10. Fitting, a plurality of liquid outlets 19 are provided at the bottom of the cavity 29, and a connecting groove 11 slidably connected to the plastic tube 16 is provided on the upper wall of the cavity 29. When struck with external force, one end of the fixing nail 7 is driven into the template, and at the same time, the fixing block 10 is driven downward, so that the rubber ring 17 fits with the waterstop belt body 1 part in the perforation 5. Before fitting, the glue in the plastic tube 16 can be released through the cooperation of the pushing mechanism to adhere the rubber ring 17 to the waterstop belt body 1 part in the perforation 5 for sealing, so as to avoid the waterstop strip 3 from breaking and leaking during the striking process. The glue released in advance will also penetrate into the gap between the threaded hole 28 and the threaded rod 6 for better sealing.
[0033] As a further technical solution of the present invention, the pushing mechanism includes a slider 21 slidably connected to the placement groove 14, a circular cavity 31 is opened in the slider 21, and a plurality of connection ports 22 connected to the circular cavity 31 are opened on the outer side of the slider 21. The upper end of the slider 21 is fixedly connected to a cannula 23 connected to the circular cavity 31, and a sharp cutting head is arranged at the upper end of the cannula 23. The lower end of the slider 21 is fixedly connected to a push rod 15 slidably connected to the fixed rod 12, and a sealed plastic tube 16 is arranged to hold glue. , to avoid air leakage causing glue solidification, when hitting the fixing nail 7, the slider 21 will be driven to move up and push the plastic tube 16 up until the plastic tube 16 is limited by the connecting groove 11, and the slider 21 continues to move up, so that the sharp cutting head of the insert 23 is inserted into the plastic tube 16, and the glue in the plastic tube 16 is released, and leaks into the cavity 29 through the connecting port 22, and then leaks into the perforation 5 through the liquid outlet 19, and is used to stick the rubber ring 17 and the waterstop belt body 1 part in the perforation 5 to achieve sealing.
[0034] As a further technical solution of the present invention, an extrusion ring 18 is provided on the outer fixed sleeve of the fixed block 10, and the extrusion ring 18 is located at the upper end of the rubber ring 17. When one end of the fixing nail 7 is driven into the template, the fixed block 10 and the extrusion ring 18 are driven downward. When the rubber ring 17 is partially fitted with the water stop belt body 1 in the perforation 5, the extrusion of the extrusion ring 18 makes the fitting and adhesion tighter.
[0035] As a further technical solution of the present invention, a conical block 24 is fixedly installed at the bottom of the circular cavity 31 , so that the glue in the circular cavity 31 can easily leak into the cavity 29 .
[0036] As a further technical solution of the present invention, a soft rubber plate 20 is fixedly installed at the lower end of the slider 21. The diameter of the soft rubber plate 20 is larger than the inner diameter of the placement cavity 26. A soft rubber layer is provided at the bottom of the cavity 29. The soft rubber plate 20 is unfolded after being separated from the placement cavity 26, so that more glue leaks out from the liquid outlet 19, and the soft rubber layer and the soft rubber plate 20 are more easily adhered to each other by glue.
[0037] As a further technical solution of the present invention, a limiting groove 27 is opened on the peripheral side of the lower end of the threaded hole 28, and a limiting extrusion pad 8 is fixedly installed on the peripheral side of the lower end of the threaded rod 6. When glue seeps into the gap between the threaded rod 6 and the threaded hole 28, the limiting extrusion pad 8 can be adhered, sealed and fixed to the waterstop belt body 1.
[0038] As a further technical solution of the present invention, a sealing cushion 30 is fixedly installed at the lower end of the through hole 13 to prevent the fixing nail 7 from automatically moving downward, and the sealing cushion 30 is allowed to be punctured when struck.
[0039] As a further technical solution of the present invention, an opening 4 is provided at one end of the waterstop body 1, and a connecting strip 2 corresponding to the position of the opening 4 is fixedly installed at the other end of the waterstop body 1. After a roll of waterstop body 1 is used up, when another waterstop body 1 needs to be connected, the connecting strip 2 of one waterstop body 1 is placed in the opening 4 of the other waterstop body 1, and then welded with hot melt welding equipment, without the need to cut matching welding strips in advance.
[0040] Working principle: When the water stop belt body 1 needs to be fixed on the external template, the threaded rod 6 is pre-installed with the threaded hole 28, and the water stop strip 3 part outside the fixing nail 7 is hit by external force (the water stop strip 3 part outside the fixing nail 7 can be marked for easy hitting), and the fixing block 10 is hit to move downward, and the fixing block 10 drives the fixing rod 12, the rubber ring 17 and the extrusion ring 18 to move downward;
[0041] The fixing rod 12 drives the fixing nail 7 to move downward, so that one end of the fixing nail 7 is driven into the template to achieve fixation. The water stop strip 3 and the perforation 5 are blocked to avoid leakage after the water stop belt body 1 is installed. The fixing rod 12 also drives the push rod 15 to move downward until the lower end of the push rod 15 abuts against the retaining ring 9. The fixing rod 12, the fixing block 10 and the fixing nail 7 continue to move downward. At this time, the push rod 15 pushes the slider 21 to move upward, and the slider 21 pushes the plastic pipe 16 to move upward. The plastic pipe 16 moves upward until it is blocked by the connecting groove 11 (the plastic pipe 16 does not break away from the placement during the upward movement). When the upper end of the plastic tube 16 is connected to the cavity 26, the slider 21 continues to move upward, so that the sharp cutting head of the insert 23 is inserted into the plastic tube 16 to release the glue in the plastic tube 16. At this time, the soft rubber soft board 20 is separated from the placement cavity 26 and unfolded. Since the diameter of the soft rubber soft board 20 is larger than the inner diameter of the placement cavity 26, more glue leaks out from the liquid outlet 19, and the soft rubber layer and the soft rubber soft board 20 are more likely to stick to each other through the glue. The released glue leaks into the cavity 29 through the connection port 22, and then leaks into the perforation 5 through the liquid outlet 19;
[0042] Continue to hit the fixing block 10 until the adhesive rubber ring 17 is attached to the waterstop main body 1 part in the perforation 5. The pre-leaked glue is used to adhere the rubber ring 17 to the waterstop main body 1 part in the perforation 5 to perform sealing, so as to avoid the waterstop strip 3 from breaking and leaking during the hitting process. When the rubber ring 17 is attached to the waterstop main body 1 part in the perforation 5, the extrusion ring 18 is used to squeeze the rubber ring 17 to make the adhesion tighter.
[0043] The glue released in advance will also penetrate into the gap between the threaded hole 28 and the threaded rod 6, so that the limiting extrusion pad 8 and the water stop belt body 1 can be glued and sealed;
[0044] After one roll of waterstop body 1 is used up and another waterstop body 1 needs to be connected, the connecting strip 2 of one waterstop body 1 is placed in the opening 4 of the other waterstop body 1, and then welded with hot melt welding equipment, without the need to cut matching welding strips in advance.
[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art that the features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An environmentally friendly low-temperature resistant PVC waterstop, comprising a waterstop body (1), characterized in that: A plurality of water stop strips (3) are fixedly mounted on the upper end of the water stop strip body (1), and a through hole (5) is formed through one end of some of the water stop strips (3). A plurality of threaded holes (28) connected to the through holes (5) are formed on the lower end of the water stop strip body (1), and a threaded rod (6) is threadedly connected to the threaded hole (28). A through hole (13) is formed through the upper end of the threaded rod (6), and a retaining ring (9) is fixedly mounted in the through hole (13). A fixing nail (7) slidably connected to the retaining ring (9) is formed through the through hole (13), and the fixing nail (7) is slidably connected to the retaining ring (9). ) is fixedly installed on the upper end of the fixing rod (12), and a connecting mechanism is fixedly installed on the upper end of the fixing rod (12), and the connecting mechanism includes a fixing block (10), and a rubber ring (17) is fixedly sleeved on the outer side of the lower end of the fixing block (10), and a placement cavity (26) is provided at the upper end of the fixing rod (12), and a plastic tube (16) filled with glue is slidably arranged in the placement cavity (26), and a placement groove (14) is provided at the bottom of the placement cavity (26), and a pushing mechanism is arranged in the placement groove (14) for pushing out the glue in the plastic tube (16).
2. The environmentally friendly low-temperature resistant PVC waterstop according to claim 1 is characterized in that: The connection mechanism further comprises a cavity (29) formed in the fixing block (10), the cavity (29) being in communication with the placement cavity (26), the lower end of the fixing block (10) being conical, the bottom of the cavity (29) being conical, a plurality of liquid outlets (19) being formed at the bottom of the cavity (29), and a connection groove (11) being slidably connected to the plastic tube (16) being formed on the upper wall of the cavity (29).
3. The environmentally friendly low-temperature resistant PVC waterstop according to claim 2 is characterized in that: The pushing mechanism comprises a slider (21) slidably connected to the placement groove (14); a circular cavity (31) is provided in the slider (21); a plurality of connection ports (22) connected to the circular cavity (31) are provided on the outer side of the slider (21); a cannula (23) connected to the circular cavity (31) is fixedly connected to the upper end of the slider (21); a sharp cutting head is provided at the upper end of the cannula (23); and a push rod (15) slidably connected to the fixed rod (12) is fixedly connected to the lower end of the slider (21).
4. The environmentally friendly low-temperature resistant PVC waterstop according to claim 3 is characterized in that: An extrusion ring (18) is provided on the outer fixed sleeve of the fixed block (10), and the extrusion ring (18) is located on the upper end of the rubber ring (17).
5. The environmentally friendly low-temperature resistant PVC waterstop according to claim 4 is characterized in that: A conical ring (25) is fixedly mounted on the upper end of the threaded rod (6), and the upper end of the conical ring (25) is in contact with the lower end of the fixing block (10).
6. The environmentally friendly low-temperature resistant PVC waterstop according to claim 5, characterized in that: A conical block (24) is fixedly mounted on the bottom of the circular cavity (31).
7. The environmentally friendly low-temperature resistant PVC waterstop according to claim 6, characterized in that: A soft rubber plate (20) is fixedly mounted on the lower end of the sliding block (21), and a soft rubber layer is provided at the bottom of the cavity (29).
8. The environmentally friendly low-temperature resistant PVC waterstop according to claim 7, characterized in that: A limiting groove (27) is provided on the circumferential side of the lower end of the threaded hole (28), and a limiting compression pad (8) is fixedly installed on the circumferential side of the lower end of the threaded rod (6).
9. The environmentally friendly low-temperature resistant PVC waterstop according to claim 8, characterized in that: A sealing cushion (30) is fixedly mounted at the lower end of the through hole (13).
10. The environmentally friendly low-temperature resistant PVC waterstop according to claim 1, characterized in that: An opening (4) is provided at one end of the waterstop body (1), and a connecting strip (2) corresponding to the position of the opening (4) is fixedly mounted at the other end of the waterstop body (1).