Downward opening type weir gate

Abstract

The utility model relates to a downward opening type checkgate which comprises a weir frame, a checkgate body, a sensing structure and a lifting mechanism, a water passing opening, two sliding grooves located on the two sides of the water passing opening and an installation groove which is located at the lower end of the weir frame and is through in the vertical direction are formed in the weir frame. Sealing strips are arranged on the two opposite groove side walls of each sliding groove and the two oppositely distributed side walls of the mounting groove in the thickness direction of the weir frame; the weir gate is arranged in the mounting groove in a penetrating manner, the two sides, distributed in the width direction, of the weir gate can be movably mounted in the two sliding grooves in the vertical direction, and the two side faces, in the thickness direction, of the weir gate abut against the corresponding sealing strips; the sensing structure is mounted at the upper end of the weir frame; the lifting mechanism comprises at least two hydraulic cylinders, and the two hydraulic cylinders are connected to the lower end of the weir gate in a driving mode and distributed in the width direction of the weir frame at intervals. When the checkgate moves up and down, the sensing structure detects the gradient of the upper end face of the checkgate, the upper end face of the checkgate is horizontal by adjusting the operation height of the two hydraulic oil cylinders, and it is ensured that the checkgate moves horizontally and vertically.

Description

Technical Field

[0001] The utility model relates to the field of weir gates, and particularly to a downward-opening weir gate. Background Art

[0002] In order to avoid water environmental pollution and improve the operation efficiency and treatment effect of sewage treatment plants, the current new urban drainage system is a rain-sewage separation system. Since the initial rainwater is highly polluted and the later rainwater is less polluted, under the drainage system of the rain-sewage separation system, the heavily polluted initial rain and the less polluted later rain need to be separated and diverted through a control weir gate in the drainage pipe network system, that is, the heavily polluted rain is discharged into the sewage pipe network and then connected to the urban sewage treatment plant for treatment. The later rainwater with less pollution is directly discharged into the receiving water body through the rainwater pipe network system.

[0003] In the existing downward-opening weir gates, it is common that when the weir gate moves up and down, the weir plate is prone to uneven force in the door frame and gets stuck in the door frame track groove, unable to operate normally. At the same time, the waterproof sealing rubber is stressed, and the seal cannot be adjusted, easily leading to water leakage. As a result, the weir gate cannot adjust the water level, intercept, and divert the initial and later rainwater and sewage according to the changes in rainfall and water quality. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a downward-opening weir gate to solve the problems that in the existing downward-opening weir gates, when the weir gate moves up and down, the weir plate is prone to uneven force in the door frame and gets stuck in the door frame track groove, unable to operate normally, resulting in the weir gate being unable to adjust the water level, intercept, and divert the initial and later rainwater and sewage according to the changes in rainfall and water quality.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A downward-opening weir gate, comprising:

[0007] A weir frame, formed with a water passing opening, two chutes located on both sides of the water passing opening, and an installation groove penetrating vertically downward at its lower end. Sealing strips are provided on the opposite two groove side walls of each chute and on the two side walls of the installation groove distributed relatively along the thickness direction of the weir frame.

[0008] A weir gate, passing through the installation groove, and the two sides distributed along its width direction can be movably installed up and down in the two chutes. Both side surfaces of the weir gate along its thickness direction are in contact with the corresponding sealing strips.

[0009] An induction structure, installed at the upper end of the weir frame; and,

[0010] A lifting mechanism, including at least two hydraulic cylinders, and the two hydraulic cylinders are drivingly connected to the lower end of the weir gate and are spaced apart along the width direction of the weir frame.

[0011] Based on the above technical solutions, the present utility model can be further improved as follows:

[0012] Further, the weir frame includes:

[0013] Two connecting plates, extending along the width direction of the weir gate and distributed oppositely in the up-and-down direction. The two connecting plates are divided into a first connecting plate located on the upper side and a second connecting plate located on the lower side, and,

[0014] Two side plates, extending along the up-and-down direction and arranged at intervals along the length direction of the two connecting plates, and both ends of each side plate are respectively connected to the first connecting plate and the second connecting plate;

[0015] Wherein, the water passing opening is defined between the two side plates and the two connecting plates;

[0016] The induction structure is arranged on the first connecting plate;

[0017] The installation groove is arranged on the second connecting plate.

[0018] Further, each side plate includes:

[0019] A side plate main body, extending along the up-and-down direction;

[0020] Two inner dimension plates, extending along the up-and-down direction and connected to both sides of the side plate main body at intervals in the thickness direction of the weir gate; and,

[0021] Two side pressing irons, respectively connected to the two inner dimension plates, and each side pressing iron is connected with the sealing strip;

[0022] The sliding groove is formed in the gap between the two inner dimension plates and the two side pressing irons.

[0023] Further, directional pulleys are installed on both side surfaces of the weir gate distributed along its width direction, and each directional pulley slides in the gap between the two inner dimension plates.

[0024] Further, the second connecting plate includes:

[0025] A connecting plate main body, whose two ends are respectively connected to the lower ends of the two side plates, and the connecting plate is provided with a through groove extending along the up-and-down direction; and,

[0026] Two lower pressing irons, respectively connected to both sides of the connecting plate main body distributed along its thickness direction, and each lower pressing iron is connected with the sealing strip;

[0027] Wherein, the through groove and the gap between the two lower pressing irons form the installation groove.

[0028] Further, the lifting mechanism further includes a bottom box which forms a receiving cavity with an upward opening and is connected to the lower side of the weir frame. The opening is correspondingly arranged with the notch of the installation groove.

[0029] The weir gate can be received in the receiving cavity.

[0030] Two of the hydraulic cylinders are installed in the receiving cavity. The driving rods of the hydraulic cylinders extend in the vertical direction and are drivingly connected to the weir gate.

[0031] Further, the weir gate is provided with a connecting groove with a downward notch.

[0032] At least part of the two hydraulic cylinders is received in the connecting groove, and a universal wheel is connected to the driving rod of each hydraulic cylinder. The universal wheel is connected to the bottom wall of the connecting groove.

[0033] Further, lifting lugs are provided on the upper sides of both the weir gate and the weir frame.

[0034] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0035] The weir gate passes through the installation groove. The two sides of the weir gate distributed along its width direction are respectively slidably installed in the two sliding grooves. Sealing strips are provided on the opposite side walls of each sliding groove, and sealing strips are also provided on the opposite side walls of the installation groove distributed along the thickness direction of the weir frame. Thus, when the weir gate slides up and down, the gaps between the two side edges and the lower side edge of the weir gate along its width direction and the weir frame can be sealed to ensure the sealing performance. The sensing structure is used to detect the levelness of the upper end surface of the weir gate, and the driving rods of the two hydraulic cylinders respectively extend and contract in the vertical direction to drive the weir gate to move up and down and adjust the levelness of the upper end surface of the weir gate, ensuring that the weir gate reaches a horizontal and vertical movement state, making the force evenly distributed, ensuring the normal operation of the weir gate, so as to facilitate the weir gate to adjust the water level, intercept and divert the initial and later rainwater and sewage according to the rainfall and water quality changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural diagram of an under-opening weir gate provided by an embodiment of the present utility model;

[0037] Figure 2 is Figure 1 a schematic structural diagram of another perspective (excluding the side plates).

[0038] In the drawings, the list of components represented by each reference numeral is as follows:

[0039] 1. Weir frame; 11. Water inlet; 12. Slide groove; 13. Installation groove; 14. First connecting plate; 15. Second connecting plate; 151. Connecting plate body; 152. Two pressing irons; 16. Side plate; 161. Side plate body; 162. Inner dimension plate; 163. Side pressing iron; 2. Sealing strip; 3. Weir gate; 31. Connecting groove; 4. Induction structure; 5. Lifting mechanism; 51. Hydraulic cylinder; 52. Bottom box; 521. Accommodation cavity; 6. Fixed pulley; 7. Universal wheel; 8. Lifting lug. Detailed implementation manners

[0040] To facilitate the understanding of this application, the following will describe this application more comprehensively with reference to the relevant drawings. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0042] It can be understood that spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "upper", etc. can be used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the drawing is flipped, the element or feature described as "below other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (such as rotating 90 degrees or other orientations), and the spatial description terms used herein are accordingly interpreted.

[0043] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc. if there is an electrical signal or data transfer between the connected circuits, modules, units, etc.

[0044] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising", "including" or "having" etc. specify the presence of the stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0045] Referring to Figure 1 and Figure 2 , the present utility model provides a downward-opening weir gate 3, comprising: a weir frame 1, a weir gate 3, a sensing structure 4 and a lifting mechanism 5. The weir frame 1 is formed with a water passing opening 11, two sliding grooves 12 located on both sides of the water passing opening 11, and a mounting groove 13 penetrating vertically in the lower end thereof. Sealing strips 2 are provided on the opposite two side walls of each sliding groove 12 and on the two side walls of the mounting groove 13 distributed oppositely along the thickness direction of the weir frame 1; the weir gate 3 is inserted into the mounting groove 13, and both sides of the weir gate can be movably installed in the two sliding grooves 12 in the vertical direction, and both side surfaces of the weir gate 3 in the thickness direction thereof are in contact with the corresponding sealing strips 2; the sensing structure 4 is installed at the upper end of the weir frame 1; the lifting mechanism 5 includes at least two hydraulic cylinders 51, and the two hydraulic cylinders 51 are drivingly connected to the lower end of the weir gate 3 and are spaced apart along the width direction of the weir frame 1.

[0046] During the up-and-down movement of the weir gate 3, the sensing structure 4 is used to detect the levelness of the upper end surface of the weir gate 3, and can adjust the inclination degree of the upper end surface of the weir gate 3 by applying forces to the weir gate 3 respectively through the driving rods of the two hydraulic cylinders 51, so as to ensure that the weir gate 3 reaches a horizontally vertical movement state, making the force evenly distributed, ensuring the normal operation of the weir gate 3, so as to facilitate the weir gate 3 to adjust the water level, intercept and divert the early-stage and late-stage rainwater and sewage according to the rainfall and water quality changes.

[0047] It should be noted that the type of the sensing structure 4 is not limited, as long as it can detect the levelness of the upper end surface of the weir gate 3. In this embodiment, the sensing structure 4 is set as an infrared sensor, the hydraulic cylinder 51 is connected with a controller, and the controller is electrically connected with the infrared sensor.

[0048] In addition, after one of the hydraulic cylinders 51 fails to work, it will cause uneven force on the weir gate 3 and damage it. At this time, the sensing structure 4 can detect the inclination degree of the upper end surface of the weir gate 3 and control the other hydraulic cylinder 51 to stop operating to avoid greater losses.

[0049] Specifically, in this embodiment, referring to Figure 1, the weir frame 1 includes two connecting plates and two side plates 16. The two connecting plates extend along the width direction of the weir gate 3 and are distributed oppositely in the vertical direction. The two connecting plates are divided into a first connecting plate 14 on the upper side and a second connecting plate 15 on the lower side. The two side plates 16 extend in the vertical direction and are arranged at intervals along the length direction of the two connecting plates. And both ends of each side plate 16 are respectively connected to the first connecting plate 14 and the second connecting plate 15; wherein, a water passing opening 11 is defined between the two side plates 16 and the two connecting plates; the sensing structure 4 is arranged on the first connecting plate 14, so as to facilitate the infrared sensor to detect the levelness of the weir gate 3; the installation groove 13 is arranged on the second connecting plate 15; thus, the structure is simple and easy to set up.

[0050] It should be noted that both ends of the first connecting plate 14 are respectively fixedly connected to the upper ends of the two side plates 16 through a plurality of bolts, and both ends of the second connecting plate 15 are respectively fixedly connected to the lower ends of the two side plates 16 through a plurality of bolts.

[0051] More specifically, referring to Figure 1 and Figure 2 , each side plate 16 includes a side plate main body 161, two inner dimension plates 162 and two side pressing irons 163. The side plate main body 161 extends in the vertical direction; the two inner dimension plates 162 extend in the vertical direction and are connected to both sides of the side plate main body 161 at intervals in the thickness direction of the weir gate 3; the two side pressing irons 163 are respectively connected to the two inner dimension plates 162, and each side pressing iron 163 is connected with the sealing strip 2; the sliding groove 12 is formed in the gap between the two inner dimension plates 162 and the two side pressing irons 163. The sealing strip 2 is connected to the inner dimension plate 162 through the side pressing iron 163, and the force on the sealing strip 2 can be adjusted by adjusting the side pressing iron 163, so that the sealing strip 2 tightly presses on both side surfaces of the weir gate 3 distributed along its thickness direction, ensuring the sealing effect and preventing water leakage.

[0052] Furthermore, referring to Figure 1 , directional pulleys 6 are installed on both side surfaces of the weir gate 3 distributed along its width direction, and each directional pulley 6 slides in the gap between the two inner dimension plates 162; when the weir gate 3 slides up and down, the two directional pulleys 6 respectively roll on the opposite side surfaces of the two side plate main bodies 161, ensuring the smooth movement of the weir gate 3, preventing the weir gate 3 from getting stuck in the sliding groove 12 and unable to move up and down, and improving the stability.

[0053] In this embodiment, referring to Figure 1 and Figure 2, the second connecting plate 15 includes a connecting plate main body 151 and two lower pressing irons 152. The two ends of the connecting plate main body 151 are respectively connected to the lower ends of the two side plates 16. The connecting plate is provided with a through groove penetrating in the up and down direction; the two lower pressing irons are connected to both sides of the connecting plate main body 151 distributed along its thickness direction, and the two lower pressing irons are both connected with the sealing strip 2; the through groove and the gaps between the two lower pressing irons form the installation groove 13, thereby also being able to ensure the sealing degree of the lower side of the weir frame 1 and avoid water leakage.

[0054] Specifically, in this embodiment, referring to Figure 1 and Figure 2 , the lifting mechanism 5 further includes a bottom box 52. The bottom box 52 forms a receiving cavity 521 with an upward opening. The bottom box 52 is connected to the two side plates 16 through a plurality of bolts, so that the bottom box 52 is fixedly connected to the weir frame 1, and the opening is correspondingly arranged with the notch of the installation groove 13; the weir gate 3 can be accommodated in the receiving cavity 521. The two hydraulic cylinders 51 are installed in the receiving cavity 521 and are both located below the weir gate 3. The cylinder bases of the hydraulic cylinders 51 are fixed on the lower cavity wall of the receiving cavity 521. The driving rods of the hydraulic cylinders 51 are movably arranged in the up and down direction, and the driving rods of the hydraulic cylinders 51 are drivingly connected to the weir gate 3. When the opening degree of the water passing port 11 is the largest, the weir gate 3 is accommodated in the receiving cavity 521, and the driving rods of the two hydraulic cylinders 51 are driven to move upward, driving the weir gate 3 to pass through the installation groove 13 to block the water passing port 11 and adjust the water passing port 11 to be smaller. Similarly, the driving rods of the two hydraulic rods can also be driven to move downward to drive the weir gate 3 to move downward to adjust the water passing port 11 to be larger. Each of the hydraulic cylinders 51 is drivingly connected to the weir gate 3.

[0055] It should be noted that during the up and down movement of the weir gate 3, the weir gate 3 always passes through the installation groove 13, and both sides of the weir gate 3 always slide in the two sliding grooves 12.

[0056] More specifically, in this embodiment, referring to Figure 1 and Figure 2 , the weir gate 3 is provided with a connecting groove 31 with a downward notch; at least part of the two hydraulic cylinders 51 is accommodated in the connecting groove 31, and the driving rod of each hydraulic cylinder 51 is connected with a universal wheel 7. The universal wheel 7 is connected to the bottom wall of the notch of the connecting groove 31 to avoid jamming of the driving rod of the hydraulic cylinder 51 and ensure smooth driving; when the opening degree of the water passing port 11 is the largest, the weir gate 3 is accommodated in the receiving cavity 521, and the hydraulic cylinder 51 is received in the connecting groove 31; thus, the space occupation is reduced, and the weight of the weir gate 3 is reduced, reducing the load of the hydraulic cylinder 51.

[0057] There is no limitation on the connection manner between the universal wheel 7 and the bottom wall of the connection groove 31. It can be that the universal wheel 7 directly abuts against the bottom wall of the connection groove 31. In this embodiment, referring to Figure 2 , the universal wheel 7 is installed at the end of the driving rod of the hydraulic cylinder 51. The bottom of the connection groove 31 is provided with a connection portion extending vertically. The connection portion is provided with a through hole. The rotating shaft of the universal wheel 7 passes through the through hole. Thus, the driving rod is connected to the bottom of the connection groove 31 through the universal wheel 7, and the end of the driving rod and the universal wheel 7 can rotate relative to each other. In this way, the driving rod of the hydraulic cylinder 51 is flexibly connected to the weir gate 3, avoiding jamming at the driving connection of the hydraulic cylinder 51, which may affect the driving of the hydraulic rod, and ensuring smooth driving.

[0058] It should be noted that there is no limitation on the type of the hydraulic cylinder 51, as long as it can drive the weir gate 3 to move up and down. In this embodiment, the hydraulic cylinder 51 is set as an oil cylinder.

[0059] In this embodiment, lifting lugs 8 are provided on the upper sides of both the weir gate 3 and the weir frame 1. By removing the multiple bolts connecting the bottom box 52 and the two side plates 16, the weir gate 3 and the weir frame 1 can be lifted out of the diversion well in sequence through the lifting lugs 8; in this way, disassembly and assembly are convenient.

[0060] In summary, in the present utility model, the bottom box 52 is connected to the lower side of the weir frame 1. The two hydraulic cylinders 51 are installed in the accommodation cavity 521 and at least partially accommodated in the connection groove 31, saving space occupancy and reducing weight; the driving rods of the hydraulic cylinders 51 are connected to the bottom of the connection groove 31 through the universal wheels 7, ensuring smooth driving and avoiding jamming; when the two driving cylinders drive the weir gate 3 to move up and down, the two fixed pulleys arranged along the width direction of the two weir gates 3 ensure smooth sliding, and the sealing strips 2 arranged on both sides and the lower side of each weir frame 1 along its width direction ensure the sealing degree and prevent water leakage. The infrared sensor is arranged on the weir frame 1. After detecting that the upper end surface of the weir gate 3 is inclined, it controls the two driving rods to drive and adjust, making the upper end surface of the weir gate 3 horizontal according to the different acting forces output by the two driving rods, making the acting force on the weir gate 3 in the weir frame 1 uniform, ensuring the normal operation of the weir gate 3, and enabling the weir gate 3 to adjust the size of the water passing port 11 according to the rainfall and water quality changes, so as to achieve the purpose of adjusting the water level and intercepting and diverting the initial and later stage rainwater and sewage.

[0061] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A bottom-opening weir gate, characterized in that: include: The weir frame is formed with a water outlet, two chutes located on both sides of the water outlet, and a mounting groove located at the lower end thereof and extending vertically, and sealing strips are provided on the opposite side walls of each chute and the opposite side walls of the mounting groove distributed in the thickness direction of the weir frame; The weir gate is inserted into the installation groove, and the two sides distributed along the width direction thereof can be movably installed in the two slide grooves in the up-down direction, and the two side surfaces of the weir gate along the thickness direction thereof are both in contact with the corresponding sealing strips; a sensing structure mounted on the upper end of the weir frame; and The lifting mechanism comprises at least two hydraulic cylinders, which are drivingly connected to the lower end of the weir gate and are spaced apart along the width direction of the weir frame.

2. The bottom-opening weir gate according to claim 1, characterized in that: The weir frame comprises: Two connecting plates extending along the width direction of the weir gate and being relatively distributed in the upper and lower directions, the two connecting plates are divided into a first connecting plate located at the upper side and a second connecting plate located at the lower side, and, Two side plates extending in the up-down direction and spaced apart along the length direction of the two connecting plates, and two ends of each side plate are respectively connected to the first connecting plate and the second connecting plate; Wherein, the water outlet is defined between the two side plates and the two connecting plates; The sensing structure is arranged on the first connecting plate; The mounting groove is arranged on the second connecting plate.

3. The bottom-opening weir gate according to claim 2, characterized in that: Each of the side panels comprises: The side panel body extends in the up-down direction; Two inner plates extending in the up-down direction and connected to both sides of the side plate body at intervals in the thickness direction of the weir gate; and Two side pressure irons are respectively connected to the two inner plates, and each of the side pressure irons is connected to the sealing strip; The slide groove is formed in the gap between the two inner plates and the two side pressure irons.

4. The bottom-opening weir gate according to claim 3, characterized in that: Both sides of the weir gate distributed along its width direction are equipped with directional pulleys, and each directional pulley slides in the gap between the two inner inch plates.

5. The bottom-opening weir gate according to claim 2, characterized in that: The second connecting plate comprises: A connecting plate body, both ends of which are connected to the lower ends of the two side plates respectively, and the connecting plate is provided with a through slot extending in the up-down direction; and, Two lower pressure irons are respectively connected to two sides of the connecting plate body distributed along the thickness direction thereof, and each of the lower pressure irons is connected to the sealing strip; Wherein, the through groove and the gap between the two lower pressure irons constitute the installation groove.

6. The bottom-opening weir gate according to claim 1, characterized in that: The lifting mechanism further comprises a bottom box, the bottom box is formed with a receiving cavity with an opening facing upwards and is connected to the lower side of the weir frame, the opening being arranged corresponding to the notch of the mounting groove; The weir gate can be accommodated in the accommodating chamber; The two hydraulic cylinders are installed in the accommodating chamber, and the driving rod of each hydraulic cylinder extends in the up-down direction and is drivingly connected to the weir gate.

7. The bottom-opening weir gate according to claim 6, characterized in that: The weir gate is provided with a connecting groove with the notch facing downwards; At least parts of the two hydraulic cylinders are accommodated in the connecting groove, and a driving rod of each hydraulic cylinder is connected to a universal wheel, and the universal wheel is connected to the bottom wall of the connecting groove.

8. The bottom-opening weir gate according to claim 1, characterized in that: The upper sides of the weir gate and the weir frame are both provided with lifting ears.

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