Rotary nozzle for cleaning sediment and water spraying device

Abstract

The rotary spray head for cleaning the sediment comprises a water inlet pipe, and a bearing is arranged at one end of the water inlet pipe; a bearing is arranged in the water inlet pipe, the rotating part is connected with the outer portion of the bearing in a sleeving mode and rotates with the water inlet pipe as the axis through the bearing, the spray head frame is connected with the rotating part, and the spray head frame surrounds one end of the rotating part, so that water flowing out of the water inlet pipe enters the spray head frame; the side face nozzle is arranged on the outer side face of the spray head frame, and the side face nozzle is obliquely arranged in the spiral direction; the rotary nozzle set is arranged in the middle of the bottom of the spray head frame, and the rotary nozzle set is composed of a plurality of nozzles which are uniformly inclined clockwise or anticlockwise. By arranging the rotating nozzle group at the bottom of the rotating nozzle, impulsive force in the vertical direction can be reduced, thrust in the rotating direction can be increased, and rotation of the rotating nozzle is facilitated.

Description

Technical Field

[0001] The present application relates to the field of civil engineering technology, and in particular to a rotary nozzle and a water spraying device for cleaning sediment. Background Art

[0002] In pile foundation projects, implanted piles are often used to increase the stability of the project foundation. However, when the piles are placed, a large amount of loose soil often falls at the bottom of the piles, causing the implanted piles to be unstable or uneven, so the soil at the bottom of the borehole needs to be cleaned. In the prior art, high-pressure water jets are often used to wash away the loose soil at the bottom of the borehole or flush the soil so that when the implanted piles fall into the bottom of the borehole, there will be no loose soil underneath.

[0003] For example, the Chinese invention patent with application number 202210954600.6 discloses a pile sinking device and method for cleaning sediment, the device includes a prefabricated pile body, a high-pressure water pipe connected to a water source, a rotating nozzle arranged on the high-pressure water pipe, and a fixed bracket clamped in the through hole of the prefabricated pile body, which is used to fix the high-pressure water pipe and the rotating nozzle in the through hole of the prefabricated pile body; wherein the rotating nozzle is located between the fixed bracket and the bottom surface of the prefabricated pile body, the rotating nozzle is provided with a nozzle tilted downward, the rotating nozzle is rotatable relative to the high-pressure water pipe, the diameter of the prefabricated pile body is smaller than the inner diameter of the borehole of the implanted pile, and a gap is formed between the outer wall of the prefabricated pile body and the inner wall of the borehole. The device and method can effectively clean sediment, improve the stability of the implanted pile, make the prefabricated pile body more stable after falling into the borehole, and avoid the problem of tilting of the prefabricated pile body and sinking of the finished implanted pile due to bottom sediment. However, during use of the device, since the nozzle of the nozzle is provided with a vertically downward nozzle, when high-pressure water enters the nozzle, it will first be sprayed out from the nozzle at the bottom, generating a vertical upward impact force, which can easily push the entire device up and loosen it. If the nozzle is loose, the direction of the water spray will be uncontrollable, making it difficult to achieve the purpose of flushing away the sediment, and it will also affect the rotation of the rotating nozzle, causing it to rotate unsmoothly. Therefore, it is necessary to find a rotating nozzle that can solve the above problems. Summary of the invention

[0004] In order to solve the above problems, the present application proposes a rotary nozzle for cleaning sediment. By arranging a rotary nozzle group at the bottom of the rotary nozzle, the impact force in the vertical direction can be reduced, the thrust in the rotation direction can be increased, and the rotation of the rotary nozzle is facilitated. In addition, by arranging multiple layers of nozzles, the flushing density of the nozzle is large, which can be suitable for flushing sediment in larger sized boreholes.

[0005] This application is implemented through the following technical solutions:

[0006] A rotary spray head for cleaning sediment comprises a water inlet pipe, one end of which is provided with a bearing;

[0007] The rotating part, the bearing is externally sleeved and connected to the rotating part, the rotating part rotates with the water inlet pipe as the axis through the bearing, and also includes:

[0008] A nozzle frame, the nozzle frame is connected to the rotating part, the nozzle frame surrounds one end of the rotating part, so that the water from the water inlet pipe enters the nozzle frame;

[0009] A side nozzle, the side nozzle is arranged on the outer side of the nozzle frame, and the side nozzle is arranged obliquely in a spiral direction;

[0010] The rotating nozzle group is arranged at the middle position of the bottom of the nozzle frame, and the rotating nozzle group is composed of a plurality of nozzles which are uniformly inclined in a clockwise or counterclockwise direction.

[0011] Furthermore, the nozzle rack includes a first frame and a second frame, the first frame is connected to the second frame, the side nozzles are arranged on the sides of the first frame and the second frame, the side nozzles are provided with multiple layers, the rotating nozzle group is arranged at the bottom of the second frame, one end of the first frame is connected to the rotating part, and the other end of the first frame is sealed by the second frame to form a rotating nozzle as a whole.

[0012] Furthermore, the first frame is in the shape of a polygonal cylinder or a circular cylinder, and the second frame is in the shape of a polyhedral sphere or a hemisphere.

[0013] Furthermore, the side nozzle comprises an inlet portion and an outlet portion which are internally connected, the hollow portion in the inlet portion is cylindrical or trumpet-shaped, and the hollow portion in the outlet portion is conical.

[0014] Furthermore, the side nozzle is inclined in a spiral direction, and the inclination angle of the side nozzle is 40-50°.

[0015] Furthermore, the rotating nozzle group includes a plurality of spray surfaces arranged in an inclined manner, each of the spray surfaces is arranged at an acute angle to a horizontal plane and the angles are consistent, and nozzles are arranged on the spray surfaces, and the nozzles are connected to the interior of the second frame.

[0016] The inclination angle between the spray surface in the rotating nozzle group and the horizontal plane is 10-45°, and the direction in which the nozzles on the spray surface spray water is perpendicular to the spray surface.

[0017] A water spraying device for cleaning sediment comprises: the above-mentioned rotating spray head, a water source pipe and a fixing frame, wherein the water source pipe is connected to the water inlet pipe, a through hole is provided in the middle of the fixing frame, the water inlet pipe passes through the through hole and is connected and fixed to the fixing frame, so that the rotating spray head is fixed in the middle of the fixing frame;

[0018] The fastening part is arranged on the outside of the adjustable part and is used to connect the adjustable part and the prefabricated pile body. The outer side surface of the fastening part fits with the inner side wall of the prefabricated pile body and is used to increase the fastening part and the prefabricated pile body.

[0019] Furthermore, the fixing frame includes a fixing portion and an adjustable portion, the adjustable portion is arranged around the fixing portion, and the size of the adjustable portion is adjustable.

[0020] Furthermore, the adjustable part is an airbag, and an air tube is provided on the adjustable part.

[0021] The implementation of the above technical solution in this application has the following beneficial effects:

[0022] (1) The present application can reduce the impact force in the vertical direction and increase the thrust in the rotation direction by arranging a rotating nozzle group at the bottom of the rotating nozzle, thereby facilitating the rotation of the rotating nozzle. In addition, the multi-layer nozzles are arranged to increase the flushing density of the nozzles, which can be applied to flushing sediment in larger boreholes;

[0023] (2) The present application provides a fixing frame on the rotating sprinkler head to facilitate fixing the rotating sprinkler head in the prefabricated pile body and placing it into the borehole together, and simultaneously flushing the sediment at the bottom of the borehole during the falling process of the prefabricated pile body. In addition, the fixing frame adopts an air bag to make the overall structure light, and its expansion and contraction can be easily controlled by inflation and deflation;

[0024] (3) The rotating nozzle of the present application is arranged by setting nozzles on multiple inclined spray surfaces to form a rotating nozzle group. The spray surface is provided with nozzles so that the spray surface is subjected to a recoil force after the nozzle sprays out a water column, thereby driving the nozzle to rotate. The surface force is easy to be evenly distributed, and the entire rotating nozzle is driven to rotate more stably, avoiding the nozzle from changing its position due to uneven force. The inside and outside of the rotating nozzle group are both spray surfaces set with several inclined surfaces, and the angles are consistent, which is conducive to balancing the recoil force generated by the water spray. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the second frame of the rotary spray head of the present application;

[0026] Figure 2 A schematic cross-sectional structure diagram of an embodiment of a rotary spray head of the present application;

[0027] Figure 3 A schematic cross-sectional view of another embodiment of the rotary spray head of the present application;

[0028] Figure 4 A cross-sectional view of the nozzle of the rotary spray head of the present application;

[0029] Figure 5 This is a schematic diagram of the structure of the water spray device of this application.

[0030] The descriptions of the reference numerals in the figures are as follows:

[0031] Water inlet pipe 1, rotating part 2, bearing 3, nozzle frame 4, side nozzle 5, rotating nozzle group 6, first frame 7, second frame 8, water inlet part 9, water outlet part 10, spray surface 11, water source pipe 12, fixing frame 13, fastening part 14, fixing part 15, adjustable part 16, air pipe 17. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Example 1

[0036] like Figures 1 to 3 As shown, the first embodiment of the present application provides a rotary spray head for cleaning sediment, comprising a water inlet pipe 1, wherein a bearing 3 is provided at one end of the water inlet pipe 1;

[0037] The rotating part 2, the bearing 3 is externally sleeved and connected to the rotating part 2, and the rotating part 2 rotates with the water inlet pipe 1 as the axis through the bearing 3, and is characterized in that it also includes:

[0038] A nozzle frame 4, the nozzle frame 4 is connected to the rotating part 2, and the nozzle frame 4 surrounds one end of the rotating part 2, so that the water from the water inlet pipe 1 enters the nozzle frame 4;

[0039] A side nozzle 5, wherein the side nozzle 5 is arranged on the outer side of the nozzle frame 4, and the side nozzle 5 is arranged to be inclined in a spiral direction;

[0040] The rotating nozzle group 6 is arranged at the middle position of the bottom of the nozzle frame 4, and the rotating nozzle group 6 is composed of a plurality of nozzles that are uniformly inclined in a clockwise or counterclockwise direction.

[0041] It should be noted that, by setting the water inlet pipe 1 to fix the nozzle below and connect the external water inlet pipe 1, by setting the rotating part 2, it is convenient to connect the bearing 3 and the nozzle frame 4, the bearing 3 drives the rotating part 2 to rotate, and at the same time drives the nozzle frame 4 to rotate, and the nozzle is set to be inclined in a spiral direction, so that when the high-pressure water is sprayed from the rotating nozzle, an eccentric reverse thrust is generated, which drives the rotation of the entire nozzle, so the entire rotating nozzle can rotate without providing additional power components, and the structure is simple and not easy to damage. At the same time, since the nozzle needs to clean the sediment at the bottom of the pile, the side nozzle 5 is set to be inclined in a spiral direction. On the one hand, in addition to providing the power for rotation, it can also directly wash the sediment at the bottom of the annular pile of the implanted pile, and the side nozzle 5 and the rotating nozzle group 6 can form a multi-layer nozzle. When washing, the rotating nozzle group 6 is located directly below the nozzle frame, forming a water spray in the same rotation direction, which can provide power for the rotation of the rotating nozzle, and at the same time avoid the reverse impulse generated by the vertically downward nozzle. The impact on the stability of the entire rotating nozzle.

[0042] As a further implementation scheme of this embodiment, Figure 2 and Figure 3 As shown, the nozzle frame 4 includes a first frame 7 and a second frame 8, the first frame 7 is connected to the second frame 8, the side nozzles 5 are arranged on the sides of the first frame 7 and the second frame 8, the side nozzles 5 are provided with multiple layers, the rotating nozzle group 6 is arranged at the bottom of the second frame 8, one end of the first frame 7 is connected to the rotating part 2, and the other end of the first frame 7 is sealed by the second frame 8 to form a rotating nozzle as a whole. Figure 2 The first frame is provided with a layer of side nozzles, Figure 3 The first frame is provided with two layers of nozzles, and different first frames can be replaced as needed.

[0043] It should be noted that by setting the first frame 7 and the second frame 8, it is convenient to set up multiple layers of side nozzles 5. In some large-scale pile implantation projects, multiple layers of nozzles are needed to flush out the sediment at the bottom of the pile, and the annular range of flushing is large enough. The more layers of the arranged side nozzles 5, the higher the degree of flushing precision, and the larger the flushing range at the same time, which can effectively adapt to the flushing of drilling sediments in a larger area. The first frame 7 can be set to a cylindrical structure of different heights, and the first frames 7 of different sizes are set with different numbers of layers of side nozzles 5. The first frame 7 and the second frame 8 are detachable, so first frames 7 of different specifications can be used according to needs, which is flexible and convenient to use.

[0044] As a further implementation scheme of this embodiment, the first frame 7 is in the shape of a polygonal cylinder or a circular cylinder, and the second frame 8 is in the shape of a polyhedral sphere or a hemisphere.

[0045] It should be noted that the polygonal tube or cylindrical shape is convenient for evenly installing the side nozzles in different positions, so that a uniform flushing water layer is formed during flushing, and the second frame 8 is set as a polyhedral sphere or a hemisphere, which is convenient for connecting with the first frame 7, and the second frame 8 can directly wrap one end of the first frame 7 to form a closed mouth, so that the water entering the rotating nozzle is sprayed out from the nozzle, forming a high-pressure water flow to produce a flushing effect.

[0046] As a further implementation scheme of this embodiment, Figure 4 As shown, the side nozzle 5 includes an internally connected water inlet 9 and a water outlet 10, the hollow portion in the water inlet 9 is cylindrical or trumpet-shaped, and the hollow portion in the water outlet 10 is conical.

[0047] It should be noted that, by arranging the water inlet 9 and the water outlet 10 to form a nozzle, the external shape of the entire nozzle can be cylindrical or polygonal or other shapes, wherein the hollow portion in the water inlet 9 is cylindrical or trumpet-shaped, and the larger opening and capacity are conducive to the entry of water into the nozzle, and the hollow portion in the water outlet 10 is conical, forming a conical outlet, so that the pressure of the water column sprayed out is the largest at the outlet, and when a large amount of water rushes into the nozzle, a greater pressure is generated on the water outlet of the nozzle, so that the pressure of the sprayed water column is relatively large and can flush the sediment at the bottom of the borehole.

[0048] As a further implementation scheme of this embodiment, the side nozzle 5 is inclined in a spiral direction, and the inclination angle of the side nozzle 5 is 40-50°.

[0049] It should be noted that the side nozzle 5 is arranged to be inclined in a spiral direction to facilitate the formation of thrust for the rotation of the nozzle, and the inclination angle of the side nozzle 5 is conducive to high-pressure water flushing while being able to rotate outward to form a rotating flushing shape for the sediment at the bottom of the borehole.

[0050] As a further implementation scheme of this embodiment, the rotating nozzle group 6 includes a plurality of spray surfaces 11 arranged in an inclined manner, each of the spray surfaces 11 is arranged at an acute angle to the horizontal plane and the angles are consistent, and a nozzle is provided on the spray surface 11, which is connected to the interior of the second frame 8.

[0051] It should be noted that the rotating nozzle set in the present application adopts a rotating nozzle group 6 composed of nozzles set on multiple inclined spray surfaces 11. The nozzles are set on the spray surface 11, so that after the nozzle sprays out the water column, the spray surface 11 is subjected to a recoil force, thereby promoting the rotation of the nozzle. The surface force is easy to be evenly distributed, which makes the entire rotating nozzle more stable when rotating, and avoids the position of the nozzle due to uneven force. The inside and outside of the rotating nozzle group are both present as several inclined spray surfaces 11 with consistent angles, which is conducive to balancing the recoil force generated by the water spray.

[0052] As a further implementation scheme of this embodiment, the inclination angle of the spray surface 11 in the rotating nozzle group 6 to the horizontal plane is 10-45°, and the direction in which the nozzles on the spray surface 11 spray water is perpendicular to the spray surface 11.

[0053] It should be noted that the spray surface 11 in the rotating nozzle group 6 will be subjected to the backward thrust generated by the water spray, thereby driving the rotation of the entire rotating nozzle. A low-angle spray surface 11 is set, and the direction of the water spray from the nozzle is perpendicular to the spray surface 11, which is equivalent to the direction of the water spray being 10-45° to the vertical direction. When the water is sprayed outward at a certain angle, a vacant position is formed in the middle where the water cannot reach, so the sediment in the center of the borehole does not need to be flushed, reducing the flushing pressure and shortening the flushing time. If the nozzle is installed vertically downward in the traditional way, the sediment directly below the rotating nozzle cannot be flushed out. The present application directly does not flush the sediment directly below, thereby reducing the amount of sediment flushing and not affecting the stability of the pile.

[0054] Example 2

[0055] like Figure 5 As shown, the second embodiment of the present application provides a water spraying device for cleaning sediment, comprising: a rotating spray head as in embodiment 1, a water source pipe 12 and a fixing frame 13, wherein the water source pipe 12 is connected to the water inlet pipe 1, a through hole is provided in the middle of the fixing frame 13, the water inlet pipe 1 passes through the through hole and is connected and fixed to the fixing frame 13, so that the rotating spray head is fixed in the middle of the fixing frame 13;

[0056] The fastening part 14 is arranged on the outside of the fixing frame 13 and is used to connect the fixing frame 13 and the prefabricated pile body. The outer side surface of the fastening part 14 fits with the inner side wall of the prefabricated pile body and is used to increase the fastening part 14 and the prefabricated pile body.

[0057] It should be noted that, by setting a water pipe to connect the water inlet pipe 1 to an external water source, external high-pressure water is introduced into the rotary nozzle, and by setting a fixing frame 13, the rotary nozzle is fixed in the prefabricated pile body, so that the rotary nozzle can be stably set in the prefabricated pile body and enter the borehole together with the prefabricated pile body. The fixing frame 13 limits the position of the rotary nozzle to the center, which is conducive to uniformly flushing the sediment at the bottom of the prefabricated pile body.

[0058] As a further implementation scheme of this embodiment, the fixing frame 13 includes a fixing portion 15 and an adjustable portion 16. The adjustable portion 16 is disposed around the fixing portion 15, and the size of the adjustable portion 16 is adjustable.

[0059] It should be noted that the fixing frame 13 can be circular or annular, and can be a plate or a bracket that can fix the water inlet pipe 1. The adjustable part 16 is arranged on the extension of the fixing part 15, so that the size of the entire fixing frame 13 can be adjusted, so that the entire fixing frame 13 can be retracted after flushing is completed and the rotating nozzle can be lifted and removed.

[0060] As a further implementation scheme of this embodiment, the adjustable part 16 and the fastening part 14 are both air bags, and an air tube 17 is provided on the adjustable part 16 .

[0061] It should be noted that the adjustable portion 16 is configured as an airbag for easy storage, and the airbag is light, which reduces the weight of the entire fixing frame 13 . When it needs to be retracted, it only needs to be deflated, which is easy to operate.

[0062] Of course, the present application may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present application.

Claims

1. A rotary nozzle for cleaning sediment, comprising a water inlet pipe (1), wherein one end of the water inlet pipe (1) is provided with a bearing (3); The rotating part (2) is provided with a bearing (3) externally sleeved and connected to the rotating part (2), and the rotating part (2) rotates with the water inlet pipe (1) as the axis through the bearing (3), characterized in that: Also includes: A nozzle frame (4), the nozzle frame (4) being connected to the rotating part (2), the nozzle frame (4) surrounding one end of the rotating part (2) so that all water coming out of the water inlet pipe (1) enters the nozzle frame (4); A side nozzle (5), wherein the side nozzle (5) is arranged on the outer side of the nozzle frame (4), and the side nozzle (5) is arranged to be inclined in a spiral direction; A rotating nozzle group (6) is arranged at the middle position of the bottom of the nozzle frame (4), and the rotating nozzle group (6) is composed of a plurality of nozzles that are uniformly tilted in a clockwise or counterclockwise direction.

2. The rotary nozzle for cleaning sediment according to claim 1, characterized in that: The nozzle frame (4) comprises a first frame (7) and a second frame (8), wherein the first frame (7) is connected to the second frame (8), the side nozzles (5) are arranged on the sides of the first frame (7) and the second frame (8), the side nozzles (5) are provided with multiple layers, the rotating nozzle group (6) is arranged at the bottom of the second frame (8), one end of the first frame (7) is connected to the rotating part (2), and the other end of the first frame (7) is sealed by the second frame (8), so as to form a rotating nozzle as a whole.

3. The rotary nozzle for cleaning sediment according to claim 2, characterized in that: The first frame (7) is in the shape of a polygonal cylinder or a circular cylinder, and the second frame (8) is in the shape of a polyhedral sphere or a hemisphere.

4. The rotary nozzle for cleaning sediment according to claim 1, characterized in that: The side nozzle (5) comprises an internally connected water inlet (9) and a water outlet (10); the hollow portion in the water inlet (9) is cylindrical or trumpet-shaped, and the hollow portion in the water outlet (10) is conical.

5. The rotary nozzle for cleaning sediment according to claim 4, characterized in that: The side nozzle (5) is arranged to be inclined in a spiral direction, and the inclination angle of the side nozzle (5) is 40-50°.

6. The rotary nozzle for cleaning sediment according to claim 2, characterized in that: The rotating nozzle group (6) comprises a plurality of spray surfaces (11) arranged in an inclined manner, each of the spray surfaces (11) being arranged at an acute angle to a horizontal plane and having the same angle, and a nozzle being arranged on the spray surface (11) and communicating with the interior of the second frame (8).

7. The rotary nozzle for cleaning sediment according to claim 6, characterized in that: The inclination angle between the spray surface (11) in the rotating nozzle group (6) and the horizontal plane is 10-45°, and the direction in which the nozzles on the spray surface (11) spray water is perpendicular to the spray surface (11).

8. A water spraying device for cleaning sediment, characterized in that: include: The rotating sprinkler according to any one of claims 1 to 7, a water source pipe (12) and a fixing frame (13), wherein the water source pipe (12) is connected to the water inlet pipe (1), a through hole is provided in the middle of the fixing frame (13), the water inlet pipe (1) passes through the through hole and is connected and fixed to the fixing frame (13), so that the rotating sprinkler is fixed in the middle of the fixing frame (13); It also comprises a fastening part (14), which is arranged on the outside of the fixing frame (13) and is used to connect the fixing frame (13) and the prefabricated pile body, and the outer side surface of the fastening part (14) is matched with the inner side wall of the prefabricated pile body, so as to increase the fastening part (14) and the prefabricated pile body.

9. The water spraying device for cleaning sediment according to claim 8, characterized in that: The fixing frame (13) comprises a fixing portion (15) and an adjustable portion (16); the adjustable portion (16) is arranged around the fixing portion (15); and the size of the adjustable portion (16) is adjustable.

10. The water spraying device for cleaning sediment according to claim 9, characterized in that: The adjustable part (16) and the fastening part (14) are both air bags, and an air tube (17) is provided on the adjustable part (16).

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