An automatic opening device for a rainwater grate and a rainwater well

Abstract

The present invention discloses an automatic opening device for a rainwater grate and a rainwater well, which relates to the technical field of urban drainage facilities. The automatic opening device for the rainwater grate is arranged on the lower side of the rainwater grate and includes: a frame structure; two first transmission arms, which are in an inverted V shape. The middle of the first transmission arms is hinged to the frame structure, and the top of the first transmission arms contacts the rainwater grate; a water tank structure, which is hinged to the bottom end of the first transmission arms, and the water tank structure is provided with a drain hole. This automatic opening device adopts a pure mechanical structure, collects road surface rainwater through the water tank structure, and drives the rainwater grate to rise by using the lever principle of the water tank structure; when the speed of collecting rainwater on the road surface is less than the drainage speed of the water tank structure, the rainwater grate closes by its own gravity. In this way, automatic opening when there is road waterlogging and automatic closing when there is no waterlogging can be realized, and the service life can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of urban drainage facilities, and more specifically, relates to an automatic opening device for a rainwater grate and a rainwater well. Background Art

[0002] During the flood season, urban rainwater grates are prone to being blocked by sundries such as leaves and garbage, resulting in poor drainage, and further causing urban road surface waterlogging and waterlogging. To solve this problem, most of the similar devices for opening rainwater grates currently use an electric control system, but problems such as circuit aging, electric leakage, and control system failure will occur during long-term use, thus affecting the water collection capacity of urban drainage facilities. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic opening device for a rainwater grate and a rainwater well in view of the deficiencies of the existing technology. The automatic opening device adopts a pure mechanical structure, collects road surface rainwater through a water tank structure, and when the speed of collecting rainwater on the road surface is greater than the drainage speed of the water tank structure and the accumulated water in the water tank structure reaches a certain amount, the water tank structure drives the rainwater grate to rise by using the lever principle; when the speed of collecting rainwater on the road surface is less than the drainage speed of the water tank structure and the water level in the water tank structure is lower than a certain amount, the rainwater grate closes by its own gravity. In this way, automatic opening during road waterlogging and automatic closing without water accumulation can be achieved, improving the service life.

[0004] To achieve the above purpose, the present invention provides an automatic opening device for a rainwater grate, which is arranged on the lower side of the rainwater grate and includes:

[0005] A frame structure;

[0006] Two first transmission arms, the two first transmission arms are in an inverted V shape, the middle of the first transmission arm is hinged to the frame structure, and the top of the first transmission arm contacts the rainwater grate;

[0007] A water tank structure, the water tank structure is hinged to the bottom end of the first transmission arm, and the water tank structure is provided with a drainage hole.

[0008] Optionally, the frame structure includes:

[0009] A base, the base is a rectangular frame;

[0010] Two columns, the two columns are respectively arranged at both ends of the base;

[0011] Two lifting brackets, arranged between the two columns, one end of the lifting bracket is connected to the top end of the column, and the other end of the lifting bracket is hinged to the middle of the first transmission arm.

[0012] Optionally, through holes are vertically opened along the periphery of the base.

[0013] Optionally, the frame structure further includes connecting angle steels, and two ends of each connecting angle steel are respectively connected to the other ends of two lifting brackets.

[0014] Optionally, a support rod is further included. A plurality of U-shaped brackets are arranged at the top end of the first transmission arm along the length direction thereof. The support rod is movably arranged in grooves of the plurality of U-shaped brackets, and the support rod is used for contacting the rainwater grate.

[0015] Optionally, a traction rod is arranged at the bottom end of the first transmission arm. One end of the traction rod is connected to one end of a spring, and the other end of the spring is connected to the middle of the support rod.

[0016] Optionally, the water tank structure includes:

[0017] A water tank, the water tank is arranged with an upward opening, and drain holes are uniformly arranged on the bottom wall of the water tank;

[0018] Two connecting rods, two ends of each connecting rod are connected to the side wall of the water tank;

[0019] Two second transmission arms, the two second transmission arms are arranged in a V shape. The top end of the second transmission arm is hinged to the bottom end of the first transmission arm, and the bottom end of the second transmission arm is connected to the middle of the connecting rod.

[0020] Optionally, both sides of the water tank are in sliding fit with the column through a sliding structure.

[0021] Optionally, the sliding structure includes:

[0022] A U-shaped support, the bottom wall of the U-shaped support is connected to the side wall of the water tank, and two side walls of the U-shaped support are arranged on both sides of the column;

[0023] A plurality of pulley brackets, the pulley brackets are connected to the side wall of the U-shaped support, and the pulley brackets are in sliding fit with the column through pulleys.

[0024] The present invention further provides a rainwater well, including:

[0025] The above-mentioned automatic opening device for the rainwater grate;

[0026] A rainwater grate, one end of the rainwater grate is hinged to the wellhead of the rainwater well;

[0027] The top end of the first transmission arm contacts the other end of the rainwater grate.

[0028] The present invention provides an automatic opening device for a rainwater grate and a rainwater well, and its beneficial effects are as follows: This device improves the water collection efficiency of urban rainwater inlets during the flood season, thereby reducing the problem of poor water collection caused by blockage of urban rainwater grates. This device adopts a pure mechanical structure to avoid the possible impacts in terms of circuit control, and at the same time reduces the workload of manual opening, and fully realizes the automatic opening and closing actions of the rainwater grate.

[0029] Other features and advantages of the present invention will be described in detail in the following specific implementation part. Brief Description of the Drawings

[0030] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0031] Figure 1 The structural schematic diagram of an automatic opening device for a rainwater grate according to an embodiment of the present invention is shown.

[0032] Figure 2 Shown is Figure 1 the top view of

[0033] Description of the Reference Numerals in the Drawings:

[0034] 1. First transmission arm; 2. Base; 3. Column; 4. Lifting bracket; 5. Screw; 6. Connecting angle steel; 7. U-shaped bracket; 8. Traction rod; 9. Support rod; 10. Limiting part; 11. Lifting lug; 12. Spring; 13. Water tank; 14. Drainage hole; 15. Connecting rod; 16. Second transmission arm; 17. U-shaped support; 18. Pulley. Detailed Description of the Invention

[0035] The following will describe the preferred embodiments of the present invention in more detail. Although the following describes the preferred embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to be able to fully convey the scope of the present invention to those skilled in the art.

[0036] The present invention provides an automatic opening device for a rainwater grate. The automatic opening device for a rainwater grate is arranged on the lower side of the rainwater grate and includes:

[0037] A frame structure;

[0038] Two first transmission arms, the two first transmission arms are in an inverted V shape, the middle of the first transmission arm is hinged to the frame structure, and the top end of the first transmission arm contacts the rainwater grate;

[0039] Water tank structure, which is hinged to the bottom end of the first transmission arm, and the water tank structure is provided with a drain hole.

[0040] Specifically, this device is arranged on the lower side of the rainwater grate and is stably placed in the sewer well through the frame structure. Using the two first transmission arms as levers and the hinge points between the first transmission arms and the frame structure as fulcrums, when the speed of rainwater drained from the water tank structure is less than the speed of rainwater flowing in, the rainwater in the water tank structure increases. When the weight of the rainwater in the water tank structure is greater than the set value, the water tank structure is subjected to the gravitational force of the rainwater and pries up the rainwater grate through the first transmission arm, finally realizing the automatic opening of the rainwater grate and improving the drainage capacity of the rainwater grate wellhead; however, when the speed of rainwater drained from the water tank structure is greater than the speed of rainwater flowing in, the rainwater in the water tank structure decreases. When the weight of the rainwater in the water tank structure is lower than the set value, the first transmission arm pries up the water tank structure under the gravitational force of the rainwater grate, finally realizing the automatic closing of the rainwater grate. The whole process of opening and closing the rainwater grate is completely automatic without circuit control, ensuring the stability of the operation of this device.

[0041] Optionally, the frame structure includes:

[0042] A base, which is a rectangular frame;

[0043] Two columns, which are respectively arranged at both ends of the base;

[0044] Two lifting brackets, which are arranged between the two columns. One end of the lifting bracket is connected to the top end of the column, and the other end of the lifting bracket is hinged to the middle part of the first transmission arm.

[0045] Specifically, in the frame structure, the base is a rectangular frame placed in the sewer well. The two columns are arranged at two corners of the same long side of the rectangular frame. One lifting bracket is arranged on each column. The lifting bracket is in a trapezoidal structure. The lower bottom position of the lifting bracket is connected to the top end of the column, and the upper bottom position of the lifting bracket is arranged between the two columns and is hinged to the middle part of the first transmission arm. In addition, the other two first transmission arms are in an inverted V shape, and the distance between the upper ends of the two first transmission arms is not greater than the distance between the two columns, so as to effectively control the space occupied by this device and ensure that it can pass through the sewer wellhead.

[0046] Optionally, through holes are vertically opened along the periphery of the base.

[0047] Specifically, screws are respectively arranged around the base, and the screws enter from the top of the base and pass through the bottom of the base. By adjusting the screws, the device can be placed horizontally in the sewer, ensuring that rainwater in the water tank structure can be smoothly discharged from the drainage hole, so that when the rainwater in the water tank structure reaches the set value, the rainwater grate can be pried up, and the top of the first transmission arm is fully supported and fitted with the rainwater grate when it is raised, ensuring that the rainwater grate can be fully lifted up, thereby improving the drainage capacity.

[0048] Optionally, the frame structure further includes a connecting angle steel, and two ends of the connecting angle steel are respectively connected to the other ends of the two lifting brackets.

[0049] Specifically, a connecting angle steel is arranged at the upper bottom position of the two lifting brackets, and the connecting angle steel and the first transmission arm are respectively arranged on both sides of the lifting bracket, so as to ensure that the two lifting brackets support the first transmission arm more stably, and an installation through hole is opened at the upper bottom position of the lifting bracket, and a custom screw passes through the installation through hole, and the custom screw is provided with an external thread on the side of the lifting bracket close to the connecting angle steel, and the connecting angle steel is fixed to the two lifting brackets through a nut, and the custom screw is provided with a bearing on the side of the lifting bracket close to the first transmission arm, and the lifting bracket is rotatably connected to the first transmission arm through the bearing, so as to ensure that the first transmission arm acts as a lever.

[0050] Optionally, a support rod is further included, and a plurality of U-shaped brackets are arranged at the top end of the first transmission arm along its length direction. The support rod is movably arranged in the grooves of the plurality of U-shaped brackets, and the support rod is used to contact the rainwater grate.

[0051] Specifically, a plurality of U-shaped brackets are arranged at the top end of the first transmission arm. The U-shaped brackets are formed by bending a solid long steel strip with a circular cross-section. The cross-section of the support rod is also circular. The end of the support rod can be supported by the plurality of U-shaped brackets. When the first transmission arm lifts and lowers the support rod, the U-shaped bracket forms point contact with the support rod, which can reduce the friction between the two and ensure that the device can normally open and close the rainwater grate. Since the rainwater grate is a hollow structure, the support rod can be arranged to fit with the rainwater grate in multiple places, making it convenient for the top end of the first transmission arm to drive the rainwater grate to achieve the lifting action. There is no need to adjust the placement position of the device in the sewer, so that the top end of the first transmission arm can fit the rainwater grate exactly after being lifted, thereby reducing the difficulty of installation.

[0052] In one embodiment, limiting portions are provided at both ends of the support rod, and the end of the first transmission arm always slides along the length direction of the support rod. The limiting portions can limit the sliding range of the first transmission arm from the support rod, thereby preventing the support rod from falling off from the top end of the first transmission arm and causing damage to the device.

[0053] Optionally, a traction rod is provided at the bottom end of the first transmission arm, the traction rod is connected to one end of the spring, and the other end of the spring is connected to the middle part of the support rod.

[0054] Specifically, a traction rod is provided at the bottom end of the first transmission arm, and the traction rod is connected to the middle part of the support rod through a spring. When a certain amount of rainwater is stored in the water tank structure and the gravity of the water tank structure is greater than the contraction force of the spring, the water tank structure stretches the spring and drives the bottom end of the first transmission arm to move downward, so that the top end of the first transmission arm lifts the support rod. When the amount of rainwater stored in the water tank structure is lower than a certain amount, and the sum of the gravity of the rainwater grate and the contraction force of the spring is close to the gravity of the water tank structure, under the action of the spring, the top end of the first transmission arm begins to slowly descend, slowing down the speed at which the bottom end of the first transmission arm drives the water tank structure to rise, reducing the vibration of the device caused by the movement of the first transmission arm, and extending the service life of the device.

[0055] Optionally, the water tank structure includes:

[0056] A water tank, wherein the water tank opening is arranged upward, and drainage holes are evenly arranged on the bottom wall of the water tank;

[0057] Two connecting rods, both ends of which are connected to the side walls of the water tank;

[0058] The two second transmission arms are arranged in an eight-shaped shape, the top end of the second transmission arm is hinged to the bottom end of the first transmission arm, and the bottom end of the second transmission arm is connected to the middle part of the connecting rod.

[0059] Specifically, in the water tank structure, the trough is used to collect rainwater entering from the sewer, and discharge the rainwater through the drainage holes. The drainage speed of the drainage holes and the rainwater collection speed of the trough can reflect the drainage efficiency of the sewer; two connecting rods are arranged at both ends of the length direction of the trough, and the connecting rods connect the trough with the second transmission arm, so that the gravity of the rainwater on the trough is transmitted to the first transmission arm through the connecting rod and the second transmission arm, so that the trough drives the support rod to lift, thereby realizing the phenomenon of automatic opening of the rainwater grate.

[0060] Optionally, two sides of the water tank are slidably matched with the columns through a sliding structure.

[0061] Specifically, a sliding structure is also provided in the device. The sliding structure is arranged on the outside of both sides of the water tank along its length direction. The sliding structure slides with the column. The sliding structure can make the water tank move stably in the vertical direction, reduce the shaking of the water tank, ensure that the first transmission arm and the second transmission arm only rotate in the vertical direction, reduce the shaking in the horizontal direction, and avoid the shaking of the device.

[0062] Optionally, the sliding structure comprises:

[0063] A U-shaped support, wherein the bottom wall of the U-shaped support is connected to the side wall of the water tank, and the two side walls of the U-shaped support are arranged on both sides of the column;

[0064] Multiple pulley brackets, the pulley brackets are connected to the side walls of the U-shaped support, and the pulley brackets are slidably engaged with the column through pulleys.

[0065] Specifically, the sliding structure includes a U-shaped support. The U-shaped support is located on the outer periphery of the column. The bottom wall of the U-shaped support is connected to the water tank. Pulleys are respectively arranged on the two side walls of the U-shaped support. The two pulleys roll in opposite directions of the column, which can effectively reduce the shaking of the water tank in the horizontal direction.

[0066] In this device, the water tank is arranged directly above the base, and the column and the lifting bracket are arranged on one side of the water tank. Such a C-shaped structure can enable the device to be stably placed in the manhole. When the weight of the rainwater collected in the water tank reaches the gravity at which the rain grate rises, the device can also ensure that it does not fall down.

[0067] The present invention also provides a rain well, including:

[0068] The above-mentioned rain grate automatic opening device;

[0069] A rain grate, one end of the rain grate is hinged to the wellhead of the rain well;

[0070] The top end of the first transmission arm contacts the other end of the rain grate.

[0071] Specifically, one end of the rain grate is hinged to the wellhead. The automatic opening device is arranged in the rain well. The other end of the rain grate is lifted by the first transmission arm to ensure that the road surface water can be discharged into the manhole in time. When there is too much water on the road surface, the device can automatically open the rain grate to improve the drainage capacity of the rain well, and is not affected by the unstable operation of the electric control device. Embodiment

[0072] As Figures 1 to 2 shown, the present invention provides a rain grate automatic opening device. The rain grate automatic opening device is arranged on the lower side of the rain grate and includes:

[0073] A frame structure;

[0074] Two first transmission arms 1, the two first transmission arms 1 are in an inverted V shape. The middle of the first transmission arm 1 is hinged to the frame structure, and the top end of the first transmission arm 1 contacts the rain grate;

[0075] A water tank structure, the water tank structure is hinged to the bottom end of the first transmission arm 1, and the water tank structure is provided with a drain hole 14.

[0076] In this embodiment, the frame structure includes:

[0077] A base 2, the base 2 is a rectangular frame;

[0078] Two columns 3 are respectively arranged at both ends of the base 2;

[0079] Two lifting brackets 4 are arranged between the two columns 3. One end of the lifting bracket 4 is connected to the top end of the column 3, and the other end of the lifting bracket 4 is hinged to the middle of the first transmission arm 1.

[0080] In this embodiment, through holes are vertically formed around the base 2, and screws 5 are arranged in the through holes.

[0081] In this embodiment, the frame structure includes connecting angle steels 6, and both ends of the connecting angle steels 6 are respectively connected to the other ends of the two lifting brackets 4.

[0082] In this embodiment, it further includes a support rod 9. A plurality of U-shaped brackets 7 are arranged along the length direction at the top end of the first transmission arm 1. The support rod 9 is movably arranged in the grooves of the plurality of U-shaped brackets 7. The support rod 9 is used to contact the rainwater grate. Limit parts 10 are arranged at both ends of the support rod 9, and the limit parts 10 cooperate with the U-shaped brackets 7.

[0083] In this embodiment, a traction rod 8 is arranged at the bottom end of the first transmission arm. One end of a spring 12 is connected to the traction rod 8, and the other end of the spring 12 is connected to an ear 11 in the middle of the support rod 9.

[0084] In this embodiment, the water tank structure includes:

[0085] A water trough 13 is arranged with its opening facing upward, and drain holes 14 are uniformly arranged on the bottom wall of the water trough 13;

[0086] Two connecting rods 15, and both ends of the connecting rods 15 are connected to the side walls of the water trough 13;

[0087] Two second transmission arms 16 are arranged in a V-shaped configuration. The top ends of the second transmission arms 16 are hinged to the bottom end of the first transmission arm 1, and the bottom ends of the second transmission arms 16 are connected to the middle of the connecting rods 15.

[0088] In this embodiment, both sides of the water trough 13 are slidably matched with the columns 3 through a sliding structure.

[0089] In this embodiment, the sliding structure includes:

[0090] A U-shaped support 17, the bottom wall of the U-shaped support 17 is connected to the side wall of the water trough 13, and the two side walls of the U-shaped support 17 are arranged on both sides of the column 3;

[0091] A plurality of pulley brackets are connected to the side walls of the U-shaped support 17, and the pulley brackets are slidably matched with the columns 3 through pulleys 18.

[0092] The present invention also provides a rainwater well, including:

[0093] The above-mentioned automatic rainwater grate opening device;

[0094] A rainwater grate, one end of the rainwater grate is hinged to the wellhead of the rainwater well;

[0095] The top end of the first transmission arm 1 contacts the other end of the rainwater grate.

[0096] In summary, the device is placed in the sewer well. The end of the rainwater grate away from the hinge abuts against the support rod 9. The opening direction of the water tank 13 faces the water inlet direction of the sewer well. When the amount of rainwater flowing into the water tank 13 is greater than the discharge amount of the drain hole 14, the amount of rainwater stored in the water tank 13 increases. When the gravity of the rainwater in the water tank 13 is greater than the gravity of the rainwater grate and the contraction force of the spring 12, the bottom end of the second transmission arm 16 drives the bottom end of the first transmission arm 1 to press down, so that the top end of the first transmission arm 1 drives the support rod 9 to lift, automatically opening the rainwater grate and increasing the drainage volume of the sewer well. When the amount of rainwater flowing into the water tank 13 is less than the discharge amount of the drain hole 14, the rainwater in the water tank 13 gradually decreases. When the gravity of the rainwater in the water tank 13 is less than the gravity of the rainwater grate and the contraction force of the spring 12, the rainwater grate drives the top end of the first transmission arm 1 to press down, so that the bottom end of the first transmission arm 1 drives the second transmission arm 16 and the water tank 13 to lift, and the rainwater grate automatically closes. In this way, the device can automatically open and close the rainwater grate without the control of an electric control device, avoiding problems such as circuit aging, electric leakage, and control system failure.

[0097] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An automatic opening device for a rainwater grate, characterized in that, the automatic opening device for the rainwater grate is arranged on the lower side of the rainwater grate and includes: a frame structure; two first transmission arms, the two first transmission arms are in an inverted V shape, the middle of the first transmission arm is hinged to the frame structure, and the top end of the first transmission arm contacts the rainwater grate; a water tank structure, the water tank structure is hinged to the bottom end of the first transmission arm, and the water tank structure is provided with drain holes; the frame structure includes: a base, the base is a rectangular frame; two columns, the two columns are respectively arranged at both ends of the base; two lifting brackets, arranged between the two columns, one end of the lifting bracket is connected to the top end of the column, and the other end of the lifting bracket is hinged to the middle of the first transmission arm; perforations are provided along the vertical direction around the base; screws are respectively arranged around the base, the screws enter from above the base and penetrate below the base, and by adjusting the screws, the opening device can be horizontally placed in the manhole; a support rod, a plurality of U-shaped brackets are arranged along the length direction at the top end of the first transmission arm, the support rod is movably arranged in the grooves of the plurality of U-shaped brackets, and the support rod is used to contact the rainwater grate; a traction rod is arranged at the bottom end of the first transmission arm, the traction rod is connected to one end of a spring, and the other end of the spring is connected to the middle of the support rod; the water tank structure includes: a water trough, the water trough is arranged with the opening facing upwards, and the drain holes are uniformly arranged on the bottom wall of the water trough; two connecting rods, both ends of the connecting rod are connected to the side walls of the water trough; two second transmission arms, the two second transmission arms are arranged in a V shape, the top end of the second transmission arm is hinged to the bottom end of the first transmission arm, and the bottom end of the second transmission arm is connected to the middle of the connecting rod.

2. The automatic opening device for a rainwater grate according to claim 1, characterized in that, the frame structure further includes connecting angle steels, and both ends of the connecting angle steels are respectively connected to the other ends of the two lifting brackets.

3. The automatic opening device for a rainwater grate according to claim 1, characterized in that, both sides of the water trough are slidably matched with the columns through a sliding structure.

4. The automatic opening device for a rainwater grate according to claim 3, characterized in that, the sliding structure includes: a U-shaped support, the bottom wall of the U-shaped support is connected to the side wall of the water trough, and the two side walls of the U-shaped support are arranged on both sides of the column; a plurality of pulley brackets, the pulley brackets are connected to the side walls of the U-shaped support, and the pulley brackets are slidably matched with the columns through pulleys.

5. A rainwater well, characterized in that, includes: the automatic opening device for a rainwater grate according to any one of claims 1-4; a rainwater grate, one end of the rainwater grate is hinged to the wellhead of the rainwater well; the top end of the first transmission arm contacts the other end of the rainwater grate.

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