Folding type supporting hydraulic dam

Abstract

The utility model provides a folding type supporting hydraulic dam which comprises a base, a dam body and a hydraulic device, the base is rotationally connected with the dam body, the hydraulic device comprises a hydraulic cylinder and a piston rod, and the bottom end of the hydraulic cylinder is hinged to the end, close to the dam body, of the base; the hydraulic dam further comprises a supporting mechanism, the supporting mechanism comprises a first connecting rod and a second connecting rod, and the length of the first connecting rod is larger than that of the second connecting rod. The first connecting rod and the second connecting rod are rotationally connected to a first connecting point, the other end of the first connecting rod and the dam body are rotationally connected to a second connecting point, the other end of the second connecting rod and the end, away from the dam body, of the base are rotationally connected to a third connecting point, and one end of the piston rod is hinged to the second connecting rod. And when the piston rod in the hydraulic cylinder contracts, the supporting mechanism is driven to move towards the dam body until the dam body reaches a water retaining state.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic dams, and specifically, to a folding support hydraulic dam. Background Art

[0002] A hydraulic dam is an adjustable dam body controlled by a hydraulic system, which is used for water flow regulation, flood prevention and control, and water resource management in water conservancy projects. Compared with traditional fixed dams, the hydraulic dam can adjust the dam height according to needs, so as to flexibly control the water flow and adapt to different water level changes and environmental conditions. However, the hydraulic dam is mainly driven by hydraulic rods. When the dam body is in the upright water retaining state, the hydraulic rods for support need to bear the water pressure from the dam surface and the gravity of the dam body itself, generating a large load and greatly shortening the service life. In the prior art, a mechanical structure is set to reduce the pressure on the hydraulic rods, but the structure is complex and the space utilization rate is low. At the same time, the mechanical structure is exposed to water, and it is easy to deposit sediment and damage the mechanical structure. Summary of the Utility Model

[0003] Aiming at the defects in the prior art, the purpose of the utility model is to provide a folding support hydraulic dam. When the dam body is in the water retaining state, a support mechanism is used to provide support force for the dam body instead of the hydraulic device. When the dam body is in the laid-down state, the support mechanism can be folded into the dam body. Such a design can extend the service life of both the hydraulic device and the support mechanism at the same time.

[0004] The folding support hydraulic dam provided by the utility model includes a base, a dam body and a hydraulic device. The base is rotatably connected with the dam body. The hydraulic device includes a hydraulic cylinder and a piston rod. The bottom end of the hydraulic cylinder is hinged to one end of the base close to the dam body. The hydraulic dam further includes a support mechanism, and the support mechanism includes a first connecting rod and a second connecting rod. The length of the first connecting rod is greater than that of the second connecting rod. The first connecting rod and the second connecting rod are rotatably connected at a first connection point. The other end of the first connecting rod is rotatably connected with the dam body at a second connection point. The other end of the second connecting rod is rotatably connected with the end of the base far from the dam body at a third connection point. One end of the piston rod is hinged to the second connecting rod. When the piston rod in the hydraulic cylinder contracts, it drives the support mechanism to move towards the dam body side until the dam body reaches the water retaining state.

[0005] Preferably, the length ratio of the first connecting rod to the second connecting rod is 1.63 - 1.73.

[0006] Preferably, when the dam body is in the water retaining state, the piston rod contracts in place.

[0007] Preferably, when the dam body is in the water retaining state, the first connection point, the second connection point and the third connection point are on the same straight line, and at this time, the first connecting rod and the second connecting rod form a lock.

[0008] Preferably, when the dam body is in the laid-down state, the position of the first connection point in the horizontal direction does not exceed the top end of the dam body.

[0009] Preferably, the first connecting rod is arc-shaped.

[0010] Preferably, the base is provided with a groove, and the hydraulic device is located in the groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. For the foldable support hydraulic dam provided by the utility model, the length of the first connecting rod is greater than that of the second connecting rod. When the dam body is in the laid-down state, it can prevent physical interference between the support mechanism and the dam body and avoid collision between the support mechanism and the dam edge; at the same time, when the dam body is laid down, the first connecting rod and the second connecting rod can be folded and retracted into the dam body to avoid damage and sediment deposition when passing water.

[0013] 2. For the foldable support hydraulic dam provided by the utility model, one end of the piston rod is hinged to the second connecting rod. When the hydraulic dam is in the water-blocking state, the first connecting rod and the second connecting rod can provide support force for the dam body instead of the hydraulic device. At this time, the piston rod is retracted in place and does not provide hydraulic support; since the piston rod is directly hinged to the second connecting rod, the piston rod can provide sufficient turning force with the shortest stroke to enable the dam body to perform state conversion, which can reduce the length of the hydraulic cylinder, lower the manufacturing cost, and save the layout space of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects, and advantages of the utility model will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 It is a side sectional view of the foldable support hydraulic dam in the laid-down state in the embodiment;

[0016] Figure 2 It is a side sectional view of the foldable support hydraulic dam in the first intermediate state in the embodiment;

[0017] Figure 3 It is a side sectional view of the foldable support hydraulic dam in the second intermediate state in the embodiment;

[0018] Figure 4 It is a side sectional view of the foldable support hydraulic dam in the water-blocking state in the embodiment;

[0019] Description of the reference numerals:

[0020] 1 - Base;

[0021] 2 - Dam body;

[0022] 3 - Hydraulic cylinder;

[0023] 4 - Piston rod;

[0024] 5 - First connecting rod;

[0025] 6 - Second connecting rod. Detailed implementation manners

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, all directional indications (such as up, down, left, right, front, back, bottom...) in the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. Further, the descriptions involving "first", "second", etc. in the application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0029] As Figures 1 to 4 shown, the side sectional views of the folded support hydraulic dam in the laid - down state, intermediate state and water - retaining state provided in this embodiment respectively include a base 1, a dam body 2 and a hydraulic device. The base 1 is rotatably connected to the dam body 2. The hydraulic device includes a hydraulic cylinder 3 and a piston rod 4. The bottom end of the hydraulic cylinder 3 is hinged to one end of the base 1 close to the dam body 2. Further, the base 1 is also provided with a groove, which can accommodate the stable movement of the hydraulic device in the groove and at the same time protect the hydraulic device from less sediment erosion.

[0030] The hydraulic dam further includes a support mechanism. The support mechanism includes a first connecting rod 5 and a second connecting rod 6, and the length of the first connecting rod 5 is greater than that of the second connecting rod 6. The first connecting rod 5 and the second connecting rod 6 are rotatably connected at a first connection point. The other end of the first connecting rod 5 is rotatably connected to the dam body 2 at a second connection point. The other end of the second connecting rod 6 is rotatably connected to the end of the base 1 away from the dam body 2 at a third connection point. One end of the piston rod 4 is hinged to the second connecting rod 6. When the piston rod 4 contracts into the hydraulic cylinder 3, it drives the support mechanism to move towards the dam body side until the dam body 2 reaches the water retaining state.

[0031] Further, the length ratio of the first connecting rod 5 to the second connecting rod 6 is 1.63 - 1.73, and when the dam body 2 is in the laid-down state, the position of the first connection point in the horizontal direction does not exceed the top end of the dam body 2. This can ensure that when the dam body 2 is laid down, the first connecting rod 5 and the second connecting rod 6 do not physically interfere with the dam body 2, preventing damage caused by collision between the first connecting rod 5 and the second connecting rod 6 and the dam edge. At the same time, it can also make the first connecting rod 5 and the second connecting rod 6 fold and contract into the dam body 2, reducing wear and sediment deposition caused by water flow. When the dam body 2 is in the water retaining state, the first connecting rod 5 mainly plays a supporting role; when the dam body 2 is in the moving state, the second connecting rod 6 mainly plays a role in force transmission. Therefore, setting the length of the first connecting rod 5 to be greater than that of the second connecting rod 6 can also save layout space while enabling the first connecting rod 5 and the second connecting rod 6 to play their corresponding roles. Further, the first connecting rod 5 can be set to be arc-shaped. On the one hand, when the dam body 2 is laid down, the first connecting rod 5 can better fit and retract into the dam body 2. On the other hand, when the first connecting rod 5 plays a supporting role, the force is more dispersed and it is not easy to deform.

[0032] Further, when the dam body 2 is in the water retaining state and the piston rod 4 has contracted in place, at this time, most of the water retaining pressure and the gravity of the hydraulic dam are borne by the support mechanism, greatly reducing the load on the hydraulic device and extending its service life. At the same time, this can enable the piston rod 4 to achieve the flipping of the hydraulic dam with a smaller stroke, reduce the length of the hydraulic cylinder 3, lower the manufacturing cost, and save the layout space of the hydraulic cylinder 3. Since the length of the second connecting rod 6 is shorter and one end of the piston rod 4 is directly hinged to the second connecting rod 6, the hydraulic cylinder 3 and the piston rod 4 are close to the horizontal when the dam body 2 is in the water retaining or laid-down state, and are subject to less mechanical pressure.

[0033] Preferably, the base 1, the hydraulic device, the first connecting rod 5 and the second connecting rod 6 can be arranged in the same moving plane. This can ensure that when the dam body 2 is switched between the water retaining and laid-down states, the movement of each part is not prone to deviation, reducing wear, improving stability, and saving layout space at the same time.

[0034] For the foldable support hydraulic dam provided in this embodiment, when the dam body 2 is in the water retaining state, the first connection point, the second connection point and the third connection point are on the same straight line. At this time, the first connecting rod 5 and the second connecting rod 6 are locked, so that when the first connecting rod 5 and the second connecting rod 6 are used for support, the pressure is transmitted along a straight line, and at the same time, a triangular structure is formed with the dam body 2 and the base 1, which is more stable.

[0035] For the foldable support hydraulic dam provided in this embodiment, when it is necessary to lay down the dam body 2 for water passage, the piston rod 4 in the hydraulic cylinder 3 extends, pushing the second connecting rod 6, and then driving the first connecting rod 5 and the second connecting rod 6 to fold away from the dam body 2. Since the length of the first connecting rod 5 is greater than the length of the second connecting rod 6, at this time, the first connecting rod 5 and the second connecting rod 6 can be retracted into the dam body 2 and are both covered by the dam body 2; when it is necessary to raise the dam body 2 to retain water, the piston rod 4 in the hydraulic cylinder 3 contracts, pulling the second connecting rod 6, and then driving the first connecting rod 5 and the second connecting rod 6 to extend towards the dam body 2. When the extension reaches the position where the piston rod 4 contracts in place, the first connection point, the second connection point and the third connection point are on the same straight line. At this time, the first connecting rod 5 and the second connecting rod 6 are locked. At this time, both the water retaining pressure and the gravity of the dam body 2 are borne by the first connecting rod 5 and the second connecting rod 6, and the hydraulic device does not need to provide hydraulic support.

[0036] Such a structural design can achieve the following: First, the length of the first connecting rod 5 is greater than the length of the second connecting rod 6. When the dam body 2 is in the laid-down state, it can prevent physical interference between the support mechanism and the dam body 2 and prevent the support mechanism from colliding with the dam edge; at the same time, it can also make the first connecting rod 5 and the second connecting rod 6 fold and contract into the dam body 2 when the dam body 2 is laid down, avoiding damage and sediment deposition during water passage. Second, one end of the piston rod 4 is hinged to the second connecting rod 6. When the hydraulic dam is in the water retaining state, the first connecting rod 5 and the second connecting rod 6 can provide support force for the dam body 2 instead of the hydraulic device. At this time, the piston rod 4 contracts in place and does not provide hydraulic support; since the piston rod 4 is directly hinged to the second connecting rod 6, the piston rod 4 can provide sufficient turning force with the shortest stroke to enable the dam body 2 to perform state conversion, which can reduce the length of the hydraulic cylinder 3, reduce the manufacturing cost, and save the layout space of the hydraulic cylinder 3. Third, the base 1, the hydraulic device, the first connecting rod 5 and the second connecting rod 6 are arranged in the same moving plane. When the dam body 2 performs the state conversion between water retaining and laying down, the movement of each part is not easy to deviate, reducing wear, improving stability, and at the same time saving the layout space.

[0037] The specific embodiments of the present invention have been described above. Through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention.

Claims

1. A folding support hydraulic dam, comprising a base (1), a dam body (2) and a hydraulic device, wherein the base (1) is rotatably connected to the dam body (2), and is characterized in that, The hydraulic device includes a hydraulic cylinder (3) and a piston rod (4). The bottom end of the hydraulic cylinder (3) is hinged to one end of the base (1) close to the dam body (2). The hydraulic dam further includes a support mechanism, which includes a first connecting rod (5) and a second connecting rod (6). The length of the first connecting rod (5) is greater than that of the second connecting rod (6). The first connecting rod (5) and the second connecting rod (6) are rotatably connected at a first connection point. The other end of the first connecting rod (5) is rotatably connected to the dam body (2) at a second connection point. The other end of the second connecting rod (6) is rotatably connected to the end of the base (1) away from the dam body (2) at a third connection point. One end of the piston rod (4) is hinged to the second connecting rod (6). When the piston rod (4) in the hydraulic cylinder (3) contracts, it drives the support mechanism to move towards the dam body side until the dam body (2) reaches the water retaining state.

2. The foldable support hydraulic dam according to claim 1, wherein The length ratio of the first connecting rod (5) to the second connecting rod (6) is 1.63 - 1.

73.

3. The folding support hydraulic dam according to claim 1, characterized in that, When the dam body (2) is in the water retaining state, the piston rod (4) contracts in place.

4. The foldable support hydraulic dam according to claim 1, characterized in that, When the dam body (2) is in the water retaining state, the first connection point, the second connection point, and the third connection point are on the same straight line. At this time, the first connecting rod (5) and the second connecting rod (6) form a lock.

5. The foldable support hydraulic dam according to claim 1, wherein, When the dam body (2) is in the laid-down state, the position of the first connection point in the horizontal direction does not exceed the top end of the dam body (2).

6. The foldable support hydraulic dam according to claim 1, wherein, The first connecting rod (5) is arc-shaped.

7. The foldable support hydraulic dam according to claim 1, wherein The base (1) is provided with a groove, and the hydraulic device is located in the groove.

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