High pressure jetting impact head

Abstract

The utility model discloses a high pressure jet formula impact head, including sinking pipe, impact head and support plate, the support plate is two, two the support plate radial setting at sinking pipe bottom end export place, be equipped with rotating shaft between the support plate, the rotating shaft is hinged with first closed door and second closed door, first closed door and second closed door are hinged respectively in rotating shaft both sides, the bottom port of sinking pipe is equipped with two with first closed door and second closed door cooperation's first bevel and second bevel that lean to upwards. The utility model has the beneficial effects that: guarantee the penetration ability to the stratum, have promoted the structural stability and durability of impact head, have improved construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of construction machinery technology, specifically a high-pressure jet impact head. Background Technology

[0002] In foundation improvement projects such as crushed stone piles and compacted sand piles, traditional flap-type driven pipe tips are commonly used equipment, but they have significant limitations when dealing with complex hard layers. When there is a thick layer of backfilled riprap in the construction area, especially when encountering large riprap, the impact resistance and penetration ability of traditional pile tips are insufficient due to the structural design and strength limitations. Not only can they not efficiently penetrate such strata, but the pile tips themselves are also easily damaged, resulting in a significant reduction in construction efficiency.

[0003] To address the aforementioned issues, patent number ZL 202220650993.7 discloses a novel valve-type impact head. This impact head possesses strong impact and penetration power, as well as good durability and impact resistance, and can also achieve bottom filling processes. However, in practical applications, it has been found that its triangular valve design has defects, especially the bottom pointed part, which is relatively weak. Even after special heat treatment, it still deforms during the impact pile driving process, resulting in the valve door failing to close tightly and affecting the performance. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure jet impact head to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure jet impact head, comprising a submerged tube, an impact head, and a support plate. There are two support plates, which are disposed at the bottom outlet of the submerged tube. A rotating shaft is provided between the support plates. A first sealing door and a second sealing door are hinged on the rotating shaft. The first sealing door and the second sealing door are respectively hinged on both sides of the rotating shaft. The bottom end of the submerged tube is provided with two upwardly inclined first and second oblique openings that cooperate with the first and second sealing doors.

[0006] Preferably, the impact head includes a connecting part and an impact part, the connecting part is connected to the support plate, and the impact part is wedge-shaped.

[0007] Preferably, the impact portion is provided with a first high-pressure injection hole, a second high-pressure injection hole and a third high-pressure injection hole.

[0008] Preferably, the side wall of the submerged tube is provided with a water injection pipe, which is connected to a first high-pressure injection hole, a second high-pressure injection hole and a third high-pressure injection hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. It retains the original powerful impact and penetration of the solid impact head, which can effectively cope with construction scenarios with complex hard layers (such as thick backfill riprap layers and large riprap), and ensure the ability to penetrate the strata.

[0011] 2. By adopting a robust impact head structure, the valve door and hinge shaft are effectively protected, reducing the risk of deformation of the valve components during impact pile driving and improving the structural stability and durability of the impact head.

[0012] 3. The newly added high-pressure jetting device can assist the impact head in quickly breaking up the boulders and promptly carrying away the rock powder and stone fragments with water flow, which significantly reduces the resistance when the impact head sinks and thus improves construction efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the opening structure of the first and second closed doors of this utility model;

[0015] Figure 3 This is a schematic diagram of the impact section structure of this utility model.

[0016] In the diagram: 1. Submerged pipe; 11. Water injection pipe; 2. Impact head; 21. Connecting part; 22. Impact part; 23. First injection hole; 24. Second injection hole; 25. Third injection hole; 3. Support plate; 4. Rotating shaft; 5. First sealing door; 6. Second sealing door; 7. First inclined opening; 8. Second inclined opening. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 3This utility model provides a technical solution: a high-pressure jet impact head, including a submerged tube 1, an impact head 2, and support plates 3. Two support plates 3 are positioned at the bottom outlet of the submerged tube 1, with a rotating shaft 4 between them. A first sealing door 5 and a second sealing door 6 are hinged to the rotating shaft 4, respectively hinged to both sides of the rotating shaft 4. The bottom end of the submerged tube 1 has two upwardly inclined openings, a first oblique opening 7 and a second oblique opening 8, which cooperate with the first sealing door 5 and the second sealing door 6. The rotating shaft 4 controls the opening and closing of the first sealing door 5 and the second sealing door 6 with the oblique opening 7. During impact, the first sealing door 5 and the second sealing door 6, along with the first oblique opening 7 and the second oblique opening 8, close to prevent impacted rocks or silt from entering the submerged tube 1. After impact, as the submerged tube 1 is lifted upwards, the gravel in the submerged tube 1 opens the first sealing door 5 and the second sealing door 6 due to gravity, allowing the gravel to flow out of the submerged tube 1 and into the pile hole after impact, forming a gravel pile.

[0019] In an embodiment of this utility model, the impact head 2 includes a connecting part 21 and an impact part 22. The connecting part 21 is connected to the support plate 3, and the impact part 22 is wedge-shaped. The impact part 22 and the connecting part 21 are integrally forged. The impact part 22 is pointed downwards, possessing strong impact force and crushing ability, and can impact and crush hard rock layers.

[0020] In an embodiment of this utility model, the impact section is provided with a first high-pressure injection hole 23, a second high-pressure injection hole 24, and a third high-pressure injection hole 25. The first high-pressure injection hole 23, the second high-pressure injection hole 24, and the third high-pressure injection hole 25 are oriented in different directions, assisting the impact section in quickly crushing the boulders and promptly carrying away rock powder and stone fragments with water flow, reducing sinking resistance and improving construction efficiency.

[0021] In an embodiment of this utility model, the side wall of the submerged pipe 1 is provided with a water injection pipe 11, which is connected to a high-pressure jetting device. The impact head 2 has a water passage inside, which is connected to the water injection pipe 11 to obtain high-pressure water. At the same time, the internal water passage is connected to the first high-pressure jetting hole 23, the second high-pressure jetting hole 24, and the third high-pressure jetting hole 25, so that the high-pressure water is sprayed out through the first high-pressure jetting hole 23, the second high-pressure jetting hole 24, and the third high-pressure jetting hole 25. The high-pressure jetting device can deliver high-pressure water of 5 to 60 MPa. A higher pressure jetting device, such as an 80 or 100 MPa high-pressure jetting device, can also be replaced according to the needs of the construction site.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure jet impact head, characterized in that, The device includes a submerged tube, an impact head, and support plates. There are two support plates, which are located at the bottom outlet of the submerged tube. A rotating shaft is provided between the support plates. A first sealing door and a second sealing door are hinged on the rotating shaft. The first sealing door and the second sealing door are respectively hinged on both sides of the rotating shaft. The bottom end of the submerged tube has two upwardly inclined first and second openings that cooperate with the first and second sealing doors.

2. The high-pressure jet impact head according to claim 1, characterized in that: The impact head includes a connecting part and an impact part. The connecting part is connected to the support plate, and the impact part is wedge-shaped.

3. The high-pressure jet impact head according to claim 2, characterized in that: The impact section is provided with a first high-pressure injection hole, a second high-pressure injection hole and a third high-pressure injection hole.

4. A high-pressure jet impact head according to claim 3, characterized in that: The side wall of the submerged tube is provided with a water injection pipe, which is connected to the first high-pressure injection hole, the second high-pressure injection hole and the third high-pressure injection hole.

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