Three-section type water stop screw

Abstract

The utility model provides a three-section type water stop screw, which relates to the technical field of three-section type water stop screws, and comprises a hollow pipe, a water stop piece, a cross rod, mountain-shaped clamps and a screw, the screw is in threaded connection with a flange nut, the other mountain-shaped clamp is provided with a through hole, the screw can penetrate through the mountain-shaped clamp through the through hole, and the three-section type water stop screw further comprises two water stop plugs. A stepped groove is formed in the water stop plug, the inner surface of the stepped groove is attached to the outer surface of the hollow pipe and the outer surface of the transverse rod, when the water stop screw is used, only one flange nut is needed, therefore, the using number of the flange nuts can be effectively reduced, the efficiency of mounting and dismounting the flange nuts can be effectively improved, and compared with an existing water stop screw, the water stop screw has the advantages of being simple in structure and convenient to use. According to the water stop screw, only one end of the screw extends outwards, and two ends of a traditional water stop screw extend outwards, so that the material cost can be reduced, the cross rod and the screw can be conveniently pulled out of the hollow pipe, the disassembly efficiency of the water stop screw is improved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of three-section water-stop screws, in particular to a three-section water-stop screw. Background Art

[0002] Waterstop screws are used to fix the formwork when pouring shear walls. Waterstop screws are used in large quantities. Since the existing three-section waterstop screws have two mountain-shaped clips, they need to be clamped on the steel pipes through two flange nuts respectively when in use, resulting in the use of flange nuts doubling. Whether it is installation or disassembly, the disassembly and assembly of the flange nuts will take up a lot of time, which is not convenient to use. Utility Model Content

[0003] The purpose of the present invention is to provide a three-stage water-stop screw, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: the three-stage water-stop screw includes a hollow tube, the outer surface of the hollow tube is provided with a water-stop plate, the interior of the hollow tube is slidably connected with a cross bar, and also includes two mountain-shaped clips, one of which is fixed at one end of the cross bar, and the other end of the cross bar is provided with a screw, the screw is threadedly connected with a flange nut, and the other mountain-shaped clip is provided with a through hole, and the screw can pass through the mountain-shaped clip through the through hole, and also includes two water-stop plugs, the interior of the water-stop plug is provided with a stepped groove, and the inner surface of the stepped groove is respectively fitted with the outer surface of the hollow tube and the outer surface of the cross bar.

[0005] Preferably, a thread groove is provided at the end of the cross bar, and a protruding end with an external thread is provided at one end of the screw rod, and the screw rod is threadably connected to the thread groove on the cross bar through the protruding end.

[0006] Preferably, the cross bar is a rod body with a circular cross section.

[0007] Preferably, the maximum outer diameter of the external thread on the screw is not greater than the outer diameter of the cross bar.

[0008] Preferably, the water stopper is made of rubber.

[0009] The beneficial effects of the utility model are:

[0010] When in use, the water-stop screw only requires one flange nut, thereby effectively reducing the number of flange nuts used and improving the efficiency of installing and removing the flange nuts. Compared with the existing water-stop screw, the water-stop screw has only one end extending outward, while the traditional water-stop screw has both ends extending outward, thereby reducing material costs. In addition, the cross bar and the screw can be easily pulled out of the hollow tube, thereby improving the disassembly efficiency of the water-stop screw and having a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure inside the hollow tube.

[0013] Figure 3 This is a schematic diagram of the waterstop screw in use.

[0014] Figure 4 It is a schematic diagram of the internal structure of the water stopper.

[0015] In the figure: 1. Formwork; 2. Longitudinal support rod; 3. Steel pipe; 4. Hollow pipe; 5. Water stop plate; 6. Cross bar; 7. Mountain clip; 8. Screw; 9. Flange nut; 10. Water stop plug; 11. Step groove. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-4 As shown, a three-stage water-stop screw comprises a hollow tube 4, the outer surface of the hollow tube 4 is provided with a water-stop plate 5, the interior of the hollow tube 4 is slidably connected with a cross bar 6, and also comprises two mountain-shaped clips 7, one of which is fixed at one end of the cross bar 6, and the other end of the cross bar 6 is provided with a screw 8, the screw 8 is threadedly connected with a flange nut 9, and the other mountain-shaped clip 7 is provided with a through hole, through which the screw 8 can pass through the mountain-shaped clip 7, and also comprises two water-stop plugs 10, the interior of the water-stop plug 10 is provided with a stepped groove 11, and the inner surface of the stepped groove 11 is respectively fitted with the outer surface of the hollow tube 4 and the outer surface of the cross bar 6.

[0018] When pouring the wall, first tie the steel frame, then place the two formworks 1 on both sides of the steel frame respectively, then place the hollow tube 4 between the two formworks 1, and then make one end of the screw 8 pass through one of the formworks 1, enter and pass through the hollow tube 4, so that the screw 8 passes through the other formwork 1, and then the longitudinal support rod 2 is used to support the longitudinal direction of the formwork 1, the longitudinal support rod 2 is fixed to the side of the formwork 1 in advance, and then the cross bar 6 is pulled by the screw 8 to move the mountain-shaped card 7 fixed on the cross bar 6 to move, and the steel pipe 3 is placed on one side of the longitudinal support rod 2 to support the transverse direction of the formwork 1. When the mountain-shaped card 7 fixed at one end of the cross bar 6 abuts against the two steel pipes 3, another mountain-shaped card 7 is passed through the screw 8, and the mountain-shaped card 7 is also abutted against the two steel pipes 3, and then the flange nut 9 is put on the screw 8, and then the flange nut 9 is continuously rotated. When the flange nut 9 cannot rotate on the screw 8, the installation of a water-stop screw 8 is completed.

[0019] When removing the formwork 1, first unscrew the flange nut 9 from the screw 8, and then pull the cross bar 6 out of the hollow tube 4 through the mountain-shaped clamp 7 fixed on the cross bar 6, so that the hollow tube 4 and the water stop plate 5 remain in the wall. After the formwork 1 is removed, the water stop plug 10 can be clamped and pulled out from the wall. The hollow tube 4 has a through wiring hole in the wall. The appropriate position and number of hollow tubes 4 can be retained to serve as wiring channels. The remaining hollow tubes 4 can be sealed with filling materials such as cement.

[0020] Furthermore, a thread groove is provided at the end of the cross bar 6, and a raised end with an external thread is provided at one end of the screw rod 8. The screw rod 8 is threadedly connected to the thread groove on the cross bar 6 through the raised end. When the screw rod 8 or one of the components of the cross bar 6 is damaged, only the damaged part can be replaced, and there is no need to replace all of it, thereby reducing costs.

[0021] Furthermore, the cross bar 6 is a rod body with a circular cross section, which facilitates supporting the inner wall of the hollow tube 4 to reduce its compression deformation.

[0022] Furthermore, the maximum outer diameter of the external thread on the screw 8 is not greater than the outer diameter of the cross bar 6 , thereby preventing the screw 8 from abutting against the water stopper 10 and affecting the efficiency of the screw 8 passing through the hollow tube 4 and the water stopper 10 .

[0023] Furthermore, the water stopper 10 is made of rubber.

[0024] When in use, the water-stop screw 8 only requires one flange nut 9, thereby effectively reducing the number of flange nut 9 used and improving the efficiency of installing and removing the flange nut 9. Compared with the existing water-stop screw 8, the water-stop screw 8 has only one end of the screw 8 extending outward, while the traditional water-stop screw 8 has both ends extending outward, thereby reducing material costs, and the cross bar 6 and the screw 8 can be easily pulled out of the hollow tube 4, thereby improving the disassembly efficiency of the water-stop screw 8 and having a good use effect.

[0025] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A three-stage water-stop screw, characterized in that: It includes a hollow tube, the outer surface of which is provided with a water stop plate, the interior of the hollow tube is slidably connected to a cross bar, and also includes two mountain-shaped clips, one of which is fixed to one end of the cross bar, and the other end of the cross bar is provided with a screw, the screw is threadedly connected to a flange nut, and the other mountain-shaped clip is provided with a through hole, through which the screw can pass through the mountain-shaped clip, and also includes two water stop plugs, the interior of the water stop plug is provided with a stepped groove, and the inner surface of the stepped groove is respectively fitted with the outer surface of the hollow tube and the outer surface of the cross bar.

2. The three-stage water-stop screw according to claim 1 is characterized in that: A thread groove is provided at the end of the cross bar, and a protruding end with an external thread is provided at one end of the screw rod. The screw rod is threadably connected to the thread groove on the cross bar through the protruding end.

3. The three-stage water-stop screw according to claim 2 is characterized in that: The cross bar is a rod body with a circular cross section.

4. The three-stage water-stop screw according to claim 3 is characterized in that: The maximum outer diameter of the external thread on the screw is not greater than the outer diameter of the cross bar.

5. The three-stage water-stop screw according to any one of claims 1 to 4, characterized in that: The water stopper is made of rubber.

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