Slurry falling prevention device for upper orifice of vertical water falling hole

Abstract

The utility model relates to the technical field of vertical water falling hole plugging, and provides a slurry falling prevention device for an upper hole opening of a vertical water falling hole, the slurry falling prevention device is composed of a stainless steel disc and a water swelling rubber strip, other parts except necessary connecting parts are removed, and after the device is used, the construction difficulty is greatly reduced, and the construction cost is reduced. According to the utility model, the weight is reduced, and construction can be carried out through on-site processing, so that the plugging construction operation cost is greatly reduced, the construction time is shortened, and the construction progress is accelerated. Meanwhile, the water swelling rubber strip is arranged on the side, close to the wall, of the bottom stainless steel disc, the problems that mortar is prone to leaking in mortar plugging construction of the upper orifice of the outfall and water often seeps into the outfall after plugging construction is completed are solved, investment of personnel, equipment and materials before and after construction is reduced, the labor intensity of constructors is reduced, the plugging construction technology is optimized, and the construction efficiency is improved. And the construction cost is reduced, the construction efficiency and the construction quality stability are improved, and high application and popularization value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of vertical drain hole sealing technology, and in particular to a device for preventing slurry from falling into the upper opening of a vertical drain hole. Background Technology

[0002] In many water conservancy construction projects, vertical downholes are generally sealed with mortar. This method is particularly effective in the construction of hydropower station cavern complexes, and is known for its low construction efficiency, low quality pass rate, and high construction cost. It is a major obstacle in hydropower and water conservancy construction.

[0003] Two problems are frequently encountered in the construction of cement mortar sealing for vertical drain outlets: first, mortar leakage during the sealing process; and second, quality issues such as water seepage at the drain outlet after sealing. With the vigorous development of hydropower resources in my country and the continuous emergence of underground hydropower station projects, the accelerated construction progress has made the problems of mortar leakage during drain outlet sealing and frequent water seepage at the drain outlet after sealing a major headache for the engineering industry.

[0004] Therefore, a device to prevent slurry from falling into the vertical drain hole is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a device for preventing slurry from falling into the upper opening of a vertical drain hole, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for preventing slurry from falling into a vertical drain hole includes: a T-shaped tie rod, a stainless steel disc, a stainless steel nut, a washer, and a water-swellable rubber strip. The T-shaped tie rod includes a horizontal tie rod and a vertical tie rod. The top of the vertical tie rod is fixedly connected to the middle of the horizontal tie rod, and the bottom of the vertical tie rod is provided with external threads. The bottom of the vertical tie rod is fitted with the stainless steel disc, the outer ring of the stainless steel disc is fixedly connected to the water-swellable rubber strip, and the bottom of the stainless steel disc is fitted with a stainless steel nut.

[0008] Preferably, the top of the vertical tie rod is welded to the middle of the horizontal tie rod.

[0009] Preferably, the stainless steel disc is bonded to a water-swellable adhesive strip.

[0010] Preferably, a washer is provided between the stainless steel disc and the stainless steel nut.

[0011] Preferably, a stop block is provided above the position where the stainless steel disc is fitted at the bottom of the vertical tie rod.

[0012] This utility model discloses a device for preventing slurry from falling into the upper opening of a vertical drain hole, which has the following beneficial effects.

[0013] This invention employs a stainless steel disc and a water-swellable adhesive strip to form an anti-grouting device. It eliminates other components except for necessary connections, significantly reducing construction difficulty and costs. The device is lightweight and can be fabricated on-site, greatly lowering sealing costs and shortening construction time. Furthermore, the water-swellable adhesive strip on the wall-side of the bottom stainless steel disc solves the problems of mortar leakage during drain sealing and frequent seepage after sealing. This reduces the investment of personnel, equipment, and materials before and after construction, lowers the labor intensity of workers, optimizes the sealing process, reduces costs, and improves efficiency and quality stability, making it highly valuable for widespread application. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention.

[0015] Figure 2 This is a bottom view of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0017] In the attached diagram: 1-Stainless steel disc; 2-Stainless steel nut; 3-Washer; 4-T-shaped tie rod; 5-Water-swellable rubber strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0020] Reference Figures 1 to 2A device for preventing slurry from falling into a vertical drain hole includes: a T-shaped tie rod 4, a stainless steel disc 1, a stainless steel nut 2, a washer 3, and a water-swellable rubber strip 5. The T-shaped tie rod 4 includes: a horizontal tie rod and a vertical tie rod. The top of the vertical tie rod is fixedly connected to the middle of the horizontal tie rod, and the bottom of the vertical tie rod is provided with external threads. The bottom of the vertical tie rod is sleeved on the stainless steel disc 1, the outer ring of the stainless steel disc 1 is fixedly connected to the water-swellable rubber strip 5, and the bottom of the stainless steel disc 1 is sleeved on the stainless steel nut 2.

[0021] Preferably, in this embodiment, the top of the vertical tie rod is welded to the middle of the horizontal tie rod.

[0022] Preferably, in this embodiment, the stainless steel disc 1 is bonded to the water-swellable adhesive strip 5.

[0023] Preferably, in this embodiment, a washer 3 is provided between the stainless steel disc 1 and the stainless steel nut 2. Example 2

[0024] Please refer to Figure 3 Based on Embodiment 1, in this embodiment, a stop block is provided above the position where the stainless steel disc 1 at the bottom of the vertical tie rod is fitted. The stop block is engaged with the top of the stainless steel disc 1. The bottom of the stainless steel disc 1 is a washer 3. The bottom of the washer 3 abuts against the stainless steel screw. The washer 3 is pressed by the stainless steel bolt to prevent water leakage at the connection between the stainless steel disc 1 and the T-shaped tie rod 4.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A vertical drop hole upper hole opening pulp fall prevention device, characterized by, Include: T-shaped reinforcing bar (4), stainless steel disc (1), stainless steel nut (2), washer (3), water-swelling rubber strip (5), the T-shaped reinforcing bar (4) includes: horizontal reinforcing bar and vertical reinforcing bar, vertical reinforcing bar top and horizontal reinforcing bar middle fixed connection, vertical reinforcing bar bottom is equipped with outer thread;The vertical reinforcing bar bottom and stainless steel disc (1) are set, and the outer ring of the stainless steel disc (1) is fixedly connected with the water-swelling rubber strip (5), and the vertical reinforcing bar bottom stainless steel disc (1) below is set with stainless steel nut (2).

2. A vertical drop hole over orifice pulp fall prevention device according to claim 1, characterized in that, The vertical reinforcing bar top and horizontal reinforcing bar middle are welded.

3. A vertical drop hole over orifice pulp fall prevention device according to claim 1, characterized in that, The stainless steel disc (1) and water-swelling rubber strip (5) are bonded.

4. A vertical drop hole over orifice pulp fall prevention device according to claim 1, characterized in that, The stainless steel disc (1) and stainless steel nut (2) are provided with washer (3) therebetween.

5. A vertical drop hole over orifice pulp fall prevention device according to claim 1, characterized in that, The vertical reinforcing bar bottom stainless steel disc (1) is set above the position of the stop block.

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