A pulse type hydraulic self-cleaning rainwater pipe gallery and its hydraulic self-cleaning device

Abstract

The present invention relates to a pulse hydraulic self-cleaning rainwater pipe gallery and a hydraulic self-cleaning device thereof, and belongs to the field of rainwater pipe gallery. The hydraulic self-cleaning device comprises a rotating shaft and a bucket gate rotatably connected to the rotating shaft; the bucket gate has a water-facing side and a water-receiving side, a water-containing cavity with an upper end open is formed between the water-facing side and the water-receiving side, and a balancing hole which is connected to the water-containing cavity is provided on the water-facing side; the bucket gate is an eccentric structure, which can be closed by its own weight, and when the water in the water-containing cavity reaches a certain liquid level, it is opened by the force of the water in the water-containing cavity. The rotating shaft is installed on the inner wall of the pipe gallery body, the water-facing side of the bucket gate is located upstream of the water flow direction, and the water-receiving side is located downstream of the water flow direction; the bucket gate cuts off the water flow in the closed state, and forms a pulse water flow at the bottom of the pipe gallery body in the open state. The pulse water flow is used to take away the sediment in the rainwater pipe gallery, so as to realize the pulse hydraulic self-cleaning of the rainwater pipe gallery and solve the sediment accumulation problem in the rainwater pipe gallery.

Description

Technical Field

[0001] The invention belongs to the field of rainwater pipe gallery and relates to a pulse type hydraulic self-cleaning rainwater pipe gallery and a hydraulic self-cleaning device thereof. Background Art

[0002] The integrated pipe gallery is an underground urban pipeline integrated corridor, that is, a tunnel space is built underground in the city, which integrates various engineering pipelines such as electricity, communications, gas, heating, water supply and drainage, and is equipped with special inspection ports, lifting ports and monitoring systems. It implements unified planning, unified design, unified construction and management, and is an important infrastructure and "lifeline" to ensure the operation of the city. Among them, the rainwater pipe gallery uses the corridor to drain rainwater. The rainwater is large and small. When the rainfall is small, the water flow rate in the rainwater pipe gallery is low, and it is easy to deposit silt. Over time, it will accumulate more and more, bringing more and more challenges to the normal maintenance of the rainwater pipe gallery; at the same time, silt accumulation will reduce the water-passing section of the rainwater pipe gallery. Therefore, the problem of silt accumulation in the rainwater pipe gallery is becoming more and more serious and needs to be solved urgently. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a pulse-type hydraulic self-cleaning rainwater pipe gallery and a hydraulic self-cleaning device thereof. By installing a hydraulic self-cleaning device in the rainwater pipe gallery, a pulse-type water flow can be formed in the rainwater pipe gallery to carry away the silt in the rainwater pipe gallery, thereby solving the problem of silt accumulation in the rainwater pipe gallery.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A hydraulic self-cleaning device comprises a rotating shaft and a bucket-shaped gate rotatably connected to the rotating shaft; the bucket-shaped gate has a water-facing side and a water-receiving side, a water-containing cavity with an open upper end is formed between the water-facing side and the water-receiving side, and a balancing hole communicating with the water-containing cavity is provided on the water-facing side; the bucket-shaped gate is an eccentric structure, can be closed by its own weight, and when the water in the water-containing cavity reaches a certain liquid level, it is opened by the force of the water in the water-containing cavity.

[0006] Furthermore, the water-facing side of the bucket-shaped gate extends vertically, and the water-receiving side extends obliquely, and the angle between the water-facing side and the water-receiving side is an acute angle.

[0007] Furthermore, the projected height of the backwater side of the bucket-shaped gate in the direction of the liquid level height is greater than the projected height of the frontwater side in the direction of the liquid level height.

[0008] Furthermore, a plurality of balancing holes are provided.

[0009] Furthermore, the periphery of the bucket-shaped gate is covered with an elastic protective layer.

[0010] Furthermore, the elastic protective layer is made of rubber.

[0011] A pulse type hydraulic self-cleaning rainwater pipe gallery comprises a pipe gallery body and the hydraulic self-cleaning device as described above which is arranged inside the pipe gallery body; the rotating shaft of the hydraulic self-cleaning device is installed on the inner wall of the pipe gallery body, the water-facing side of the bucket-shaped gate is located upstream of the water flow direction, and the water-receiving side is located downstream of the water flow direction; the bucket-shaped gate cuts off the water flow when it is closed, and forms a pulsed water flow at the bottom of the pipe gallery body when it is opened.

[0012] Furthermore, a locking device is provided at the bottom of the pipe gallery body downstream of the bucket-shaped gate to limit the bucket-shaped gate from opening due to the water flow upstream on the water-facing side.

[0013] The beneficial effects of the present invention are:

[0014] The hydraulic self-cleaning device disclosed in the present invention can be used for automatically flipping open and resetting closed bucket-shaped gates according to the liquid level in the water-containing cavity. By arranging the hydraulic self-cleaning device in the rainwater pipe gallery, when the rainwater entering the water-containing cavity reaches a certain liquid level under rainfall conditions, the bucket-shaped gate automatically flips open, forming a pulsed water flow in the rainwater pipe gallery, and taking away the silt in the rainwater in the rainwater pipe gallery, thereby realizing the pulsed hydraulic self-cleaning of the rainwater pipe gallery, avoiding silt accumulation, reducing manual maintenance, and ensuring the normal operation of the rainwater pipe gallery.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 It is a front schematic diagram of the hydraulic self-cleaning device of the present invention;

[0018] Figure 2 It is a side view schematic diagram of the hydraulic self-cleaning device of the present invention and a schematic diagram of the principle of rainwater entering the pipe gallery body;

[0019] Figure 3 This is a schematic diagram of the principle when the rainwater level in the pipe gallery upstream of the bucket gate begins to reach a level that allows it to enter the water storage cavity; Figure 4 It is a schematic diagram of the principle when the rainwater level in the water-containing cavity of the bucket-shaped gate begins to reach a level that enables the bucket-shaped gate to open;

[0020] Figure 5 It is a schematic diagram of the principle of the bucket-shaped gate automatically turning over and opening;

[0021] Figure 6 This is a schematic diagram of the principle of automatic resetting and closing of the bucket-shaped gate.

[0022] Reference numerals: pipe gallery body 1, bucket-shaped gate 2, water-facing side 21, water-receiving side 22, rotating shaft 3, balancing hole 4, elastic protective layer 5, and positioning device 6. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] See also Figure 1 and Figure 2 , which is a pulse-type hydraulic self-cleaning rainwater pipe gallery and its hydraulic self-cleaning device, wherein the hydraulic self-cleaning device includes a rotating shaft 3 and a bucket-shaped gate 2 rotatably connected to the rotating shaft 3; the bucket-shaped gate 2 has a water-facing side 21 and a water-receiving side 22, and a water-containing cavity with an open upper end is formed between the water-facing side 21 and the water-receiving side 22, and the water-facing side 21 is provided with a balancing hole 4 that penetrates the water-containing cavity; the bucket-shaped gate 2 is an eccentric structure, can be closed by its own weight, and when the water in the water-containing cavity reaches a certain liquid level, it is opened by the force of the water in the water-containing cavity.

[0027] Specifically, the upstream side 21 of the bucket-shaped gate 2 extends vertically, and the downstream side 22 extends obliquely, and the angle between the upstream side 21 and the downstream side 22 is an acute angle. The projected height of the downstream side 22 of the bucket-shaped gate 2 in the liquid level height direction is greater than the projected height of the upstream side 21 in the liquid level height direction.

[0028] The balancing holes 4 are arranged at the upper end of the water-facing side 21 . The number of the balancing holes 4 can be reasonably selected according to actual needs. In this embodiment, two rows of balancing holes 4 are exemplarily arranged.

[0029] The pulse hydraulic self-cleaning rainwater gallery includes a gallery body 1 and a hydraulic self-cleaning device arranged inside the gallery body 1; the rotating shaft 3 of the hydraulic self-cleaning device is installed on the inner wall of the gallery body 1, and the water-facing side 21 of the bucket-shaped gate 2 is arranged in the cross-section of the gallery body 1. In comparison, the water-facing side 21 is located upstream in the water flow direction, and the water-receiving side 22 is located downstream in the water flow direction; the bucket-shaped gate 2 cuts off the water flow when it is closed, and forms a pulsed water flow at the bottom of the gallery body 1 when it is open.

[0030] A locking device 6 is provided at the bottom of the pipe gallery body 1 downstream of the bucket-shaped gate 2 to limit the bucket-shaped gate 2 from being flipped and opened toward the downstream due to the water flow upstream of the water-facing side 21 (to prevent it from opening counterclockwise).

[0031] The periphery of the water-facing side 21 of the bucket-shaped gate 2 is covered with an elastic protective layer 5 made of rubber material, which can prevent a large amount of rainwater from leaking, reduce the friction between the bucket-shaped gate 2 and the inner wall of the corridor body 1, and at the same time buffer the impact caused by opening and closing the bucket-shaped gate 2.

[0032] like Figure 2-Figure 6 As shown, the working principle of the present invention is: when rainfall begins, the rainwater level in the pipe gallery body 1 upstream of the bucket gate 2 increases from L0 ( Figure 2 ) to L1( Figure 3 ), a small amount of rainwater enters the water storage chamber of the bucket-shaped gate 2 through the balance hole 4, and the rainwater level in the water storage chamber of the bucket-shaped gate 2 rises to L2 ( Figure 4 ), a large amount of rainwater can directly overflow into the water-containing cavity of the bucket-shaped gate 2. Since the bucket-shaped gate 2 is an eccentric structure, under the pressure of the rainwater in the water-containing cavity, the bucket-shaped gate 2 loses stability and flips upstream (opens clockwise), and the rainwater in the water-containing cavity pours out, and the rainwater level in the water-containing cavity drops to L3 ( Figure 5), the rainwater level in the pipe gallery body 1 upstream of the bucket gate 2 drops from L1 to L4, and a large amount of rainwater passes through the bottom of the bucket gate 2, thereby forming a pulsed water flow at the bottom of the pipe gallery body 1, taking away the silt in the rainwater in the pipe gallery body 1, realizing the pulsed hydraulic self-cleaning of the rainwater pipe gallery, avoiding silt accumulation, reducing manual maintenance, and ensuring the normal operation of the rainwater pipe gallery. When the rainwater level in the water storage cavity of the bucket gate 2 drops, the bucket gate 2 is affected by its own gravity and automatically flips downstream to reset and close ( Figure 6 ). When the next rain comes, repeat the above steps.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A hydraulic self-cleaning device, characterized in that: It includes a rotating shaft and a bucket-shaped gate rotatably connected to the rotating shaft; the bucket-shaped gate has a water-facing side and a water-receiving side, a water-containing cavity with an open upper end is formed between the water-facing side and the water-receiving side, and a balancing hole communicating with the water-containing cavity is provided on the water-facing side; the bucket-shaped gate is an eccentric structure, can be closed by its own weight, and when the water in the water-containing cavity reaches a certain liquid level, it is opened by the force of the water in the water-containing cavity.

2. The hydraulic self-cleaning device according to claim 1, characterized in that: The water-facing side of the bucket-shaped gate extends vertically, and the water-receiving side extends obliquely, and the angle between the water-facing side and the water-receiving side is an acute angle.

3. The hydraulic self-cleaning device according to claim 1, characterized in that: The projected height of the backwater side of the bucket-shaped gate in the direction of the liquid level height is greater than the projected height of the frontwater side in the direction of the liquid level height.

4. The hydraulic self-cleaning device according to claim 1, characterized in that: A plurality of balancing holes are provided.

5. The hydraulic self-cleaning device according to claim 1, characterized in that: The periphery of the bucket-shaped gate is covered with an elastic protective layer.

6. The hydraulic self-cleaning device according to claim 5, characterized in that: The elastic protective layer is made of rubber.

7. A pulse hydraulic self-cleaning rainwater pipe gallery, characterized in that: It comprises a pipe gallery body and a hydraulic self-cleaning device as described in any one of claims 1 to 6 arranged inside the pipe gallery body; the rotating shaft of the hydraulic self-cleaning device is installed on the inner wall of the pipe gallery body, the water-facing side of the bucket-shaped gate is located upstream of the water flow direction, and the water-receiving side is located downstream of the water flow direction; the bucket-shaped gate cuts off the water flow when it is closed, and forms a pulsed water flow at the bottom of the pipe gallery body when it is opened.

8. The pulse type hydraulic self-cleaning rainwater pipe gallery according to claim 7 is characterized in that: A locking device is provided at the bottom of the pipe gallery body downstream of the bucket-shaped gate to limit the bucket-shaped gate from being opened due to the water flow upstream on the water-facing side.

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