A novel water stop needle

Abstract

The utility model relates to a novel water stop needle head, including connecting pipe, tail connecting piece, first sleeve, head connecting piece, second sleeve and grouting part, the connecting pipe circumference is provided with a plurality of grout holes, the tail connecting piece includes the spacer plate and the first threaded rod fixed in the spacer plate top, and the first threaded rod is connected with the female screw hole one end of connecting pipe, the head connecting piece includes the limiting nut and the second threaded rod fixed in the limiting nut bottom, and the second threaded rod is connected with the female screw hole other end of connecting pipe, the grouting part includes the grouting head and the third threaded rod fixed in the grouting head bottom, and the third threaded rod is connected with the top of limiting nut thread, the utility model discloses the connecting pipe, the connecting pipe circumference is provided with a plurality of grout holes, and the slurry flows from the hole of the plurality of grout holes on the connecting pipe and the spacer plate bottom, makes the slurry filling more fully. The grouting head is connected with the limiting nut through the third threaded rod, forms the structure of detachable, and the operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of concrete structure crack repair technology, and in particular relates to a new type of water-stopping needle. Background Technology

[0002] In the field of civil engineering, cracks and leaks in buildings have always been major challenges for building maintenance and structural safety. Building cracks not only affect aesthetics but can also lead to a decrease in structural strength and a reduction in waterproofing performance, which in turn can cause leaks.

[0003] A water-stop needle is a new type of workpiece used in conjunction with a high-pressure grouting machine. Utilizing the principle of high-pressure grouting, it injects chemical grout into the wall to achieve the purpose of repairing the wall and waterproofing / repairing leaks. Figure 1 The diagram shows an existing water-stop needle. Two sleeves 300 are fitted around the hollow bolt 200. The hollow bolt 200 is threadedly connected to the grouting pipe 100. The grouting pipe 100 and the hollow bolt 200 limit the movement of the two sleeves 300. In use, a hole needs to be drilled at the location on the wall that needs repair. The water-stop needle is then inserted into the hole. After the water-stop needle is installed, a tool is used to push against the grouting pipe 100 and rotate it. The gasket 400 compresses the sleeves 300, causing them to expand and fit tightly against the inner wall of the hole, thus fixing and sealing the water-stop needle. Grouting is then performed using a high-pressure grouting machine. About 48 hours after grouting, the grouting pipe 100 can be broken and ground flat (the grouting pipe 100 has cuts for easy breaking). Finally, it is sealed with sealant or a leak-stopping agent.

[0004] The existing water-stop needles only have grout outlets at the bottom of the hollow bolts, which can easily lead to insufficient grout filling. Furthermore, after grouting, the grouting pipe needs to be broken and ground flat, which is labor-intensive and cannot be reused. Utility Model Content

[0005] The main objective of this invention is to propose a novel water-stopping needle that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A new type of water-stopping needle, including

[0008] The connecting pipe has a through internal threaded hole, and several slurry outlet holes are provided on the circumference of the connecting pipe;

[0009] The tail connector includes a limiting plate and a first threaded rod fixed to the top of the limiting plate. The first threaded rod is threadedly connected to one end of the internal threaded hole of the connecting tube.

[0010] The first sleeve is fitted onto the first threaded rod;

[0011] The head connector includes a limiting nut and a second threaded rod fixed to the bottom of the limiting nut, the second threaded rod being threadedly connected to the other end of the internal threaded hole of the connecting tube;

[0012] The second sleeve is fitted onto the second threaded rod;

[0013] The grouting part includes a grouting head and a third threaded rod fixed to the bottom of the grouting head, wherein the third threaded rod is threadedly connected to the top of the limiting nut;

[0014] The tail connector, head connector, and grouting section are all hollow structures.

[0015] Preferably, a one-way valve is provided inside the grouting head.

[0016] Preferably, the first sleeve and the second sleeve are rubber sleeves.

[0017] Preferably, a first gasket is provided on the side of the first sleeve near the connecting pipe, and the first gasket is sleeved on the first threaded rod. Second gaskets are provided on both sides of the second sleeve, and the two second gaskets are sleeved on the second threaded rod.

[0018] Preferably, the limiting nut and the grouting head are hexagonal prism structures.

[0019] This utility model provides a novel water-stopping needle, which has the following beneficial effects:

[0020] This invention features a connecting pipe with several grout outlet holes on its circumference. During grouting, grout flows out from these outlet holes and the hole at the bottom of the limiting plate, filling the cracks and ensuring thorough filling. The grouting head is connected to the limiting nut via a third threaded rod, forming a detachable structure. After grouting, the grouting head can be removed, and a Phillips head screw can be used to seal the limiting nut. This design is convenient, requires minimal work, and the grouting head can be reused. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a water-stopping needle in existing technology;

[0022] Figure 2 This is a schematic diagram of the structure of the water-stopping needle of this utility model;

[0023] Figure 3 This is an exploded view of the water-stopping needle of this utility model.

[0024] In the diagram: 1. Connecting pipe; 11. Internal threaded hole; 12. Grout outlet hole; 2. Tail connector; 21. Limiting plate; 22. First threaded rod; 3. First sleeve; 4. Head connector; 41. Limiting nut; 42. Second threaded rod; 5. Second sleeve; 6. Grouting part; 61. Grouting head; 62. Third threaded rod; 7. First washer; 8. Second washer; 9. Phillips head screw. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example

[0030] Reference Figure 2-3A new type of water-stopping needle, including

[0031] The connecting pipe 1 has a through internal threaded hole 11, and a plurality of slurry outlet holes 12 are provided on the circumference of the connecting pipe 1.

[0032] The tail connector 2 includes a limiting plate 21 and a first threaded rod 22 fixed to the top of the limiting plate 21. The first threaded rod 22 is threadedly connected to one end of the internal threaded hole 11 of the connecting pipe 1.

[0033] The first sleeve 3 is fitted onto the first threaded rod 22 and can expand by the compression of the limiting plate 21 and the connecting pipe 1;

[0034] The head connector 4 includes a limiting nut 41 and a second threaded rod 42 fixed to the bottom of the limiting nut 41. The second threaded rod 42 is threadedly connected to the other end of the internal threaded hole 11 of the connecting pipe 1.

[0035] The second sleeve 5 is fitted onto the second threaded rod 42 and can also expand by the compression of the limiting nut 41 and the connecting pipe 1;

[0036] The grouting part 6 includes a grouting head 61 and a third threaded rod 62 fixed to the bottom of the grouting head 61. The third threaded rod 62 is threadedly connected to the top of the limiting nut 41.

[0037] The tail connector 2, head connector 4, and grouting part 6 are all hollow structures.

[0038] In one specific implementation, a one-way valve is provided inside the grouting head 61. This one-way valve ensures that grout can be injected into the grouting head 61 in the forward direction but cannot flow out in the reverse direction, thus preventing grout backflow. Specifically, in this embodiment, the one-way valve adopts a conventional structure combining a metal ball and a spring.

[0039] In one specific implementation, the limiting nut 41 and the grouting head 61 are regular hexagonal prism structures, which facilitates their use with an electric drill equipped with an external hexagonal wrench.

[0040] In one specific implementation, the first sleeve 3 and the second sleeve 5 are rubber sleeves.

[0041] In one specific implementation, a first gasket 7 is provided on the side of the first sleeve 3 near the connecting pipe 1. The first gasket 7 is sleeved on the first threaded rod 22. The first sleeve 3 can be better squeezed by the first gasket 7. A second gasket 8 is provided on both sides of the second sleeve 5. The two second gaskets 8 are sleeved on the second threaded rod 42. The two second gaskets 8 can be better squeezed by the second sleeve 5.

[0042] This utility model also provides a method for using the water-stopping needle, including the following steps:

[0043] S1. Use a drilling machine to locate and drill holes at the concentrated points of cracks. The drilling depth should be greater than the length of the water-stop needle.

[0044] S2. Clean the drill hole and place the water-stop needle into the drill hole. Use an electric drill equipped with an external hex wrench to hold the limit nut 41 and press it to screw it in. The limit nut 41 squeezes the second sleeve 5, causing the second sleeve 5 to gradually expand. As the limit nut 41 is screwed in, the connecting pipe 1 will also rotate under the transmission of force. The connecting pipe 1 squeezes the first sleeve 3, causing the first sleeve 3 to gradually expand. Stop the electric drill after it reaches a certain torque. After the first sleeve 3 and the second sleeve 5 expand, they are tightly attached to the inner wall of the drill hole, thus fixing and sealing the water-stop needle.

[0045] S3. Connect the grouting head 61 to the high-pressure grouting machine for grouting. Grout flows out from several grout outlet holes 12 on the connecting pipe 1 and the hole at the bottom of the limiting plate 21 to fill the crack.

[0046] S4. After the grout has initially set, use another electric drill equipped with an external hex wrench to hold the grouting head 61, unscrew and remove the grouting head 61, and then replace it with a cross flat head screw 9 to seal the limit nut 41.

[0047] S5. Use a special matrix material to seal the borehole.

[0048] This invention features a connecting pipe 1 with several grout outlet holes 12 on its circumference. During grouting, grout flows out from the outlet holes 12 on the connecting pipe 1 and the hole at the bottom of the limiting plate 21, filling the cracks and ensuring more thorough grout filling. The grouting head 61 is connected to the limiting nut 41 via a third threaded rod 62, forming a detachable structure. After the grout has initially set, the grouting head 61 can be removed, and a cross-head screw 9 can be used to seal the limiting nut 41. This design is convenient, requires minimal work, and the grouting head 61 can be reused.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel water-stopping needle, characterized in that: include The connecting pipe has a through internal threaded hole, and several slurry outlet holes are provided on the circumference of the connecting pipe; The tail connector includes a limiting plate and a first threaded rod fixed to the top of the limiting plate. The first threaded rod is threadedly connected to one end of the internal threaded hole of the connecting tube. The first sleeve is fitted onto the first threaded rod; The head connector includes a limiting nut and a second threaded rod fixed to the bottom of the limiting nut, the second threaded rod being threadedly connected to the other end of the internal threaded hole of the connecting tube; The second sleeve is fitted onto the second threaded rod; The grouting part includes a grouting head and a third threaded rod fixed to the bottom of the grouting head, wherein the third threaded rod is threadedly connected to the top of the limiting nut; The tail connector, head connector, and grouting section are all hollow structures.

2. The novel water-stopping needle according to claim 1, characterized in that: A one-way valve is installed inside the grouting head.

3. The novel water-stopping needle according to claim 1, characterized in that: The first sleeve and the second sleeve are rubber sleeves.

4. The novel water-stopping needle according to claim 1, characterized in that: A first gasket is provided on the side of the first sleeve near the connecting pipe, and the first gasket is sleeved on the first threaded rod. A second gasket is provided on both sides of the second sleeve, and the two second gaskets are sleeved on the second threaded rod.

5. A novel water-stopping needle according to claim 1, characterized in that: The limiting nut and the grouting head are hexagonal prism structures.

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