Hydraulic rotary weir gate

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a hydraulic rotary weir gate which comprises a flow channel, a gate plate, a rubber sealing piece, a hydraulic cylinder and a protection assembly. The flow channel comprises a liquid inlet plate, a liquid outlet plate, a side wall and a bottom plate, the bottom plate comprises a high-position section and a low-position section, and the high-position section and the low-position section are of a step structure; the door plate is arranged over the low-position section, and the two ends of the door plate are rotationally connected with the side wall of the flow channel. One end of the rubber sealing piece is connected with the surface of the high-position section, and the other end of the rubber sealing piece is connected with the surface of one side, facing the high-position section, of the door plate; one end of the hydraulic cylinder is hinged to the liquid inlet plate, and the other end of the hydraulic cylinder is hinged to the surface of the door plate; the protection assembly is arranged on the rubber sealing piece and used for protecting the rubber sealing piece. According to the check gate, the rubber sealing piece can be protected through the protection assembly, so that the rubber sealing piece is prevented from being damaged by sharp sundries, the service life of the rubber sealing piece is prolonged, and the maintenance frequency of the check gate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a hydraulic rotary weir gate. Background Art

[0002] The core principle of the hydraulic rotary weir gate is to utilize the hydraulic principle. The hydraulic system pressurizes the oil through the oil pump to form a high-pressure oil flow. When the high-pressure oil flow passes through specific valves and control elements, the direction, flow and pressure of the oil can be precisely controlled. In the hydraulic rotary weir gate, this principle is used to drive the rotary motion of the weir gate. Specifically, the hydraulic force is converted into rotary motion, so that the weir gate can rotate with extremely high precision and stability, realizing effective control of the water flow. In addition, the control principle of the hydraulic rotary weir gate also involves the control of the solenoid valve or manual valve of the hydraulic system by electrical signals or manual signals to adjust the flow direction and pressure of the oil, thereby accurately controlling the opening and closing state and rotation angle of the weir gate.

[0003] Current hydraulic rotary weir gates, such as the hydraulic rotary weir gate with patent number CN104131537B, have a rubber seal between the surface of the gate plate and the bottom surface of the upstream flow channel matrix of the gate plate to ensure the sealing of the weir gate. However, the rubber part is easy to be damaged after all, especially when the weir gate is closed and the water flow is fast. Sharp debris that can cut the rubber part may easily collide with and cut the rubber seal in the rapid flow, thereby destroying the sealing of the weir gate when it is closed, and regular maintenance is required. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic rotary weir gate in view of the above-mentioned technical problems, so as to achieve the effect of increasing the service life of the rubber seal and reducing the maintenance frequency of the weir gate.

[0005] In view of this, the utility model provides a hydraulic rotary weir gate, comprising:

[0006] A flow channel, wherein the flow channel includes a liquid inlet plate, a liquid outlet plate, a side wall and a bottom plate, wherein the bottom plate includes a high section and a low section, and the high section and the low section are step structures;

[0007] A door panel, wherein the door panel is arranged just above the low-position section and both ends of the door panel are rotatably connected to the side walls of the flow channel;

[0008] A rubber seal, which is arranged along the water flow direction, with one end connected to the surface of the high section and the other end connected to the surface of the door panel facing the high section;

[0009] A hydraulic cylinder, one end of which is hinged to the liquid inlet plate, and the other end of which is hinged to the surface of the door panel, and the hydraulic cylinder is used to drive the door panel to rotate;

[0010] A protection component is provided on the rubber seal and is used for protecting the rubber seal.

[0011] In the technical solution, the protective component can be used to protect the rubber seal, so that the rubber seal is not damaged by sharp debris, the service life of the rubber seal is increased, and the maintenance frequency of the weir gate is reduced.

[0012] Furthermore, the protection component includes:

[0013] A protection plate, wherein connecting rods extend outward from the lower ends of both sides of the protection plate, and both ends of the protection plate are flush with the door panel;

[0014] A fixed plate is fixedly connected to the side wall of the flow channel and the bottom is fixedly arranged on the high section. Fixed plates are arranged on both sides of the protective plate. Connecting holes are opened on the fixed plates. The connecting rod is rotatably arranged in the connecting hole. One end of the protective plate away from the connecting rod leans against the door panel, and the rubber seal is located between the protective plate and the door panel.

[0015] In the present technical solution, when the door panel is upright, the protective component is tilted above the rubber seal, with one end leaning against the door panel, which can prevent debris from hitting or cutting the rubber seal. When the door panel is horizontal, the protective component is pressed horizontally above the rubber seal, which can also prevent debris from hitting or cutting the surface of the rubber seal.

[0016] Furthermore, the protection plate is a steel plate.

[0017] Furthermore, an auxiliary resetting structure is also provided on the protection component, which is used to assist the protection plate in rotating and resetting when the door panel is resetting from horizontal to vertical.

[0018] Furthermore, the auxiliary resetting includes a roller, which is arranged at an end of the protection plate away from the connecting rod, and the roller extends beyond the surface of the protection plate and is always in contact with the door panel.

[0019] In this technical solution, under the action of running water, the roller is always in contact with the door panel. When the door panel is reset from horizontal to vertical, the roller is in line contact with the door panel rather than surface contact, which can make the guard plate reset and rotate more smoothly.

[0020] Furthermore, the height of the roller beyond the surface of the protection plate is greater than the thickness of the rubber seal and less than 1.5 times the thickness of the rubber seal.

[0021] In the technical solution, the height of the roller beyond the surface of the protection plate is neither too large nor too small. When the door panel is horizontal, the protection plate and the rubber seal are at an appropriate distance, and the protection plate does not excessively squeeze the rubber seal, nor is it too far away from the rubber seal.

[0022] Furthermore, the protection assembly also includes a limiting structure, which is used to limit the position of the protection plate from a horizontal state to an inclined state.

[0023] Furthermore, the limiting structure includes a limiting rod, which is fixed on the fixing plate and located on the rotation path of the protection plate.

[0024] In the present technical solution, the limit rod can prevent the fixed plate from excessively rotating 180° to become horizontally placed in the high position when it turns from a horizontal state back to an inclined state. If the fixed plate reaches this state, even with the flow force of the water flow, it is difficult to return the fixed plate to the inclined state, thereby failing to protect the rubber seal.

[0025] Furthermore, the limiting rod is arranged just above the connecting hole on the fixing plate.

[0026] The beneficial effects of the utility model are:

[0027] 1. The protective component can be placed above the rubber seal to prevent the rubber seal from being damaged by sharp debris, thereby increasing the service life of the rubber seal and reducing the maintenance frequency of the weir gate.

[0028] 2. When the door panel is upright, the protective component is tilted above the rubber seal, with one end leaning on the door panel, which can prevent debris from hitting or cutting the rubber seal. When the door panel is horizontal, the protective component is pressed horizontally above the rubber seal, which can also prevent debris from hitting or cutting the surface of the rubber seal.

[0029] 3. Under the action of running water, the roller is always in contact with the door panel. When the door panel is reset from horizontal to vertical, the roller is in line contact with the door panel instead of surface contact, which can make the guard plate reset and rotate more smoothly.

[0030] 4. The height of the roller beyond the surface of the protective plate should be neither too large nor too small. When the door panel is horizontal, there should be an appropriate distance between the protective plate and the rubber seal. The protective plate should not excessively squeeze the rubber seal, nor be too far away from the rubber seal.

[0031] 5. The limit rod can prevent the fixed plate from excessively rotating 180° to become horizontally placed in the high position when it turns from the horizontal state back to the inclined state. If the fixed plate reaches this state, even with the flow force of the water flow, it is difficult to return the fixed plate to the inclined state, thereby failing to protect the rubber seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional diagram of the utility model;

[0033] Figure 2 It is a cross-sectional view of the weir gate when the gate plate is vertical;

[0034] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0035] Figure 4 It is a cross-sectional view of the weir gate when the gate plate is horizontal;

[0036] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0037] The symbols in the figure are:

[0038] 1. Flow channel; 2. Door panel; 3. Rubber seal; 4. Hydraulic cylinder; 5. Liquid inlet plate; 6. Liquid outlet plate; 7. Side wall; 8. High section; 9. Low section; 10. Protection plate; 11. Fixed plate; 12. Connecting rod; 13. Connecting hole; 14. Roller; 15. Limit rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0043] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0044] Embodiment 1

[0045] like Figure 1-5As shown, a hydraulic rotary weir gate includes a flow channel 1, a door plate 2, a rubber seal 3, a hydraulic cylinder 4 and a protection component. The flow channel 1 includes a liquid inlet plate 5, a liquid outlet plate 6, a side wall 7 and a bottom plate, and the bottom plate includes a high section 8 and a low section 9, and the high section 8 and the low section 9 are step structures; the door plate 2 is arranged directly above the low section 9 and the two ends of the door plate 2 are rotatably connected to the side wall 7 of the flow channel 1; the rubber seal 3 is arranged along the water flow direction, one end is connected to the surface of the high section 8, and the other end is connected to the surface of the door plate 2 facing the high section 8; one end of the hydraulic cylinder 4 is hinged to the liquid inlet plate 5, and the other end is hinged to the surface of the door plate 2, and the hydraulic cylinder 4 is used to drive the door plate 2 to rotate; the protection component is arranged on the rubber seal 3, and is used to protect the rubber seal 3.

[0046] The protective component can be used to protect the rubber seal 3, so that the rubber seal 3 is not damaged by sharp debris, thereby increasing the service life of the rubber seal 3 and reducing the maintenance frequency of the weir gate.

[0047] Embodiment 2

[0048] like Figure 1-5 As shown, the protection assembly includes a protection plate 10 and a fixing plate 11. Connecting rods 12 extend outward from the lower ends of both sides of the protection plate 10, and both ends of the protection plate 10 are flush with the door panel 2; the fixing plate 11 is fixedly connected to the side wall 7 of the flow channel 1 and the bottom is fixedly set on the high section 8. The fixing plates 11 are arranged on both sides of the protection plate 10, and the fixing plates 11 are provided with connecting holes 13. The connecting rods 12 are rotatably set in the connecting holes 13. The end of the protection plate 10 away from the connecting rods 12 leans on the door panel 2, and the rubber seal 3 is located between the protection plate 10 and the door panel 2. The protection plate 10 is a steel plate.

[0049] When the door panel 2 is upright, the protective component is tilted above the rubber seal 3, with one end leaning against the door panel 2, which can prevent debris from hitting or cutting the rubber seal 3. When the door panel 2 is horizontal, the protective component is horizontally pressed above the rubber seal 3, which can also prevent debris from hitting or cutting the surface of the rubber seal 3.

[0050] Embodiment 3

[0051] like Figure 1-5 As shown, the protection assembly is also provided with an auxiliary reset structure, which is used to assist the protection plate 10 in rotating and resetting when the door panel 2 is reset from horizontal to vertical. The auxiliary reset includes a roller 14, which is arranged at one end of the protection plate 10 away from the connecting rod 12, and the roller 14 is always in contact with the door panel 2 beyond the surface of the protection plate 10. Under the action of running water, the roller 14 is always in contact with the door panel 2. When the door panel 2 is reset from horizontal to vertical, the roller 14 is in line contact with the door panel 2 rather than in surface contact, so that the protection plate can be reset and rotated more smoothly.

[0052] The height of the roller 14 beyond the surface of the protection plate 10 is greater than the thickness of the rubber seal 3 and less than 1.5 times the thickness of the rubber seal 3. The height of the roller 14 beyond the surface of the protection plate 10 is neither too large nor too small. When the door panel 2 is horizontal, the protection plate 10 and the rubber seal 3 are at an appropriate distance, and the protection plate 10 does not over-press the rubber seal 3, nor is it too far away from the rubber seal 3.

[0053] Embodiment 4

[0054] like Figure 1-5 As shown, the protection assembly further includes a limiting structure, which is used to limit the position of the protection plate 10 from the horizontal state to the inclined state. The limiting structure includes a limiting rod 15, which is fixedly arranged on the fixing plate 11 and is located on the rotation path of the protection plate 10. The limiting rod 15 is arranged just above the connecting hole 13 on the fixing plate 11.

[0055] The limit rod 15 can prevent the fixed plate 11 from excessively rotating 180° to be horizontally placed in the high section 8 when it turns back from the horizontal state to the inclined state. If the fixed plate 11 reaches this state, even with the flow force of the water flow, it is difficult to return the fixed plate 11 to the inclined state, thereby failing to protect the rubber seal 3.

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hydraulic rotary weir gate, characterized in that ,include: A flow channel (1), the flow channel (1) comprising a liquid inlet plate (5), a liquid outlet plate (6), a side wall (7) and a bottom plate, the bottom plate comprising a high section (8) and a low section (9), the high section (8) and the low section (9) being step structures; A door panel (2), wherein the door panel (2) is arranged directly above the low-position section (9) and both ends of the door panel (2) are rotatably connected to the side walls (7) of the flow channel (1); A rubber seal (3), wherein the rubber seal (3) is arranged along the water flow direction, one end of the rubber seal (3) is connected to the surface of the high section (8), and the other end is connected to the surface of the door panel (2) on one side facing the high section (8); A hydraulic cylinder (4), one end of the hydraulic cylinder (4) is hinged to the liquid inlet plate (5), and the other end is hinged to the surface of the door panel (2), and the hydraulic cylinder (4) is used to drive the door panel (2) to rotate; A protection component is provided on the rubber seal (3) and is used to protect the rubber seal (3).

2. A hydraulic rotary weir gate according to claim 1, characterized in that: The protection component comprises: A protection plate (10), wherein connecting rods (12) extend outwardly from the lower ends of both sides of the protection plate (10), and both ends of the protection plate (10) are flush with the door panel (2); A fixed plate (11) is fixedly connected to the side wall (7) of the flow channel (1) and the bottom is fixedly arranged on the high section (8). The fixing plates (11) are arranged on both sides of the protection plate (10). The fixing plates (11) are provided with connecting holes (13). The connecting rod (12) is rotatably arranged in the connecting hole (13). The end of the protection plate (10) away from the connecting rod (12) leans against the door plate (2). The rubber seal (3) is located between the protection plate (10) and the door plate (2).

3. A hydraulic rotary weir gate according to claim 2, characterized in that: The protection plate (10) is a steel plate.

4. A hydraulic rotary weir gate according to claim 2, characterized in that: The protection component is also provided with an auxiliary reset structure, which is used to assist the protection plate (10) in rotating and resetting when the door panel (2) is reset from horizontal to vertical.

5. A hydraulic rotary weir gate according to claim 4, characterized in that: The auxiliary resetting comprises a roller (14), which is arranged at one end of the protection plate (10) away from the connecting rod (12), and the roller (14) extends beyond the surface of the protection plate (10) and is always in contact with the door panel (2).

6. A hydraulic rotary weir gate according to claim 5, characterized in that: The height of the roller (14) protruding from the surface of the protection plate (10) is greater than the thickness of the rubber seal (3) and less than 1.5 times the thickness of the rubber seal (3).

7. A hydraulic rotary weir gate according to claim 2, characterized in that: The protection assembly also includes a limiting structure, which is used to limit the position of the protection plate (10) when it turns from a horizontal state to an inclined state.

8. A hydraulic rotary weir gate according to claim 7, characterized in that: The limiting structure comprises a limiting rod (15), wherein the limiting rod (15) is fixedly arranged on the fixing plate (11) and is located on the rotation path of the protection plate (10).

9. A hydraulic rotary weir gate according to claim 8, characterized in that: The limiting rod (15) is arranged directly above the connecting hole (13) on the fixing plate (11).

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