JP3242285U - Fall protection, deodorant and automatic drain safety device for manholes or rain grate - Google Patents

Abstract

[Problem] The structure is simple and stable, and the baffle is in close contact with the outer wall of the enclosure plate to improve safety performance. To provide a fall prevention, deodorization and automatic drainage safety device for a manhole or a rainwater grate, capable of draining water efficiently, and having high drainage efficiency. The connecting part is connected to the bottom plate through the surrounding plate, the connecting part is provided with a plurality of connection holes, and the connecting part is connected through bolts. fixedly connected to the manhole or the rain grate frame through the hole, the manhole cover or the grate is hingedly connected to the manhole or the rain grate frame, the enclosure plate is provided with a plurality of drains 4, and one side of the drain is a baffle. 5 is provided, a baffle is hinged to the shroud and located outside said drain, one side wall of the baffle being in close contact with the outer surface of the shroud. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to the technical field of road safety equipment, and more particularly to a fall prevention, deodorization and automatic drainage safety device for manholes or rain grate.

The manhole cover or rainwater grate is a drainage device commonly used in urban construction. It can drain water quickly and has a simple structure and is widely used. Inevitably, it will be damaged, which often causes manhole fall accidents. The conventional manhole cover or rainwater grate cannot effectively prevent the reverse discharge of odors, and long-term use can lead to Debris builds up inside the manholes, making them difficult to clean, clogs the drains, and interferes with the normal use of the drainage system.

In the prior art, the prefabricated support-insertion rainwater well disclosed in China Utility Model No. 215630545 has rainwater flowing into the well chamber inside the rainwater well body through two rainwater grids, and through a branch pipe. Although an outflow drainage structure is disclosed, the structure cannot avoid the situation of manhole fall accident, back discharge of mine odor and garbage accumulation.

Therefore, it is inexpensive, has a simple structure, is highly practical, does not destroy the shape and structure of the existing manhole cover or rainwater grate, and at the same time has the functions of deodorizing, preventing falling, and preventing overflow. How to provide a safe drainage device for water is a technical problem to be solved urgently by those skilled in the art.

Chinese Utility Model No. 215630545

SUMMARY OF THE INVENTION The purpose of the present invention is to provide a fall prevention, deodorization and automatic drainage safety device for manholes or rain grate, so as to solve the above existing technical problems.

In order to solve the above technical problems, the present invention adopts the following technical solutions.

The anti-drop, deodorant and self-drainage safety device for manhole or rain grate according to the present invention includes a connecting part, a surrounding plate and a bottom plate, the connecting part at the top is connected to the bottom plate through the surrounding plate at the side wall. A plurality of connection holes are opened in the connection portion, the connection portion penetrates the connection holes via bolts and is fixedly connected to the manhole or the rainwater grate frame, and the manhole cover or the rainwater grate frame is connected to the manhole or the rainwater grate frame. A storm grate is hingedly connected, the shroud is provided with a plurality of drains, a baffle is provided on one side of the drains, the baffle is hingedly connected to the shroud and positioned outside the drains. , one side wall of the baffle is in close contact with the outer surface of the surrounding plate.

Preferably, the baffle is tightly attached to the outer wall of the enclosing plate by gravity, the tip of the baffle is hingedly connected to the enclosing plate through a connecting member, and the included angle between the enclosing plate and the bottom plate is 90 degrees. It is below.

Preferably, the baffle is attracted to the outer surface of the enclosing plate via a magnet, the tip of the baffle is hingedly connected to the enclosing plate via a connecting member, and the baffle completely covers the corresponding drain port. do.

Preferably, a plurality of grooves are formed in the surrounding plates on both sides of the water outlet, and a plurality of the magnets are installed in the grooves.

Preferably, a return spring is further included, one end of the return spring is fixedly connected to the side wall of the baffle, the other end of the return spring is connected to the enclosing plate, and the included angle between the enclosing plate and the bottom plate is 90 degrees or more.

Preferably, the baffle is openably connected to the tip of the drain port via a lever rotation assembly, the lever rotation assembly includes a counterweight and a rotation shaft, and the baffle and the counterweight are connected via the rotation shaft. and the mass of the counterweight is greater than the mass of the baffle, and the counterweight drives the baffle to rotate about the axis of rotation to open and engage drains at corresponding locations. and the included angle between the enclosing plate and the bottom plate is greater than 90 degrees.

Preferably, the top surface of the bottom plate has a protrusion at the center, the bottom of the drain extends to the top surface of the bottom plate, and the drain is elongated, trapezoidal or circular. includes a first outlet and a second outlet.

Preferably, the bottom plate has a central drainage port, and a flap is connected to one side of the central drainage port to be openable and closable through a lever rotating assembly, the lever rotating assembly including a counterweight and a rotating shaft. , the flap and the counterweight are hingedly connected via the axis of rotation, and the mass of the counterweight is greater than the mass of the flap, and the counterweight drives the flap to rotate about the axis of rotation; to complete the operation of opening and engaging the corresponding location of the drain.

Preferably, the bottom plate has a central drain opening, a flap is connected to one side of the central drain opening via a lever rotating assembly, the opening and closing of the flap is driven by a torsion spring, and the A torsion spring is connected to the outer wall of the shroud and positioned at one side of the central drain and at the tip of the shroud of the drain, and one end of the flap is hingedly connected to the torsion spring and the torsion spring. Opposite ends of the spring abut the outer surface of the flap and the outer surface of the shroud, and the torsion spring biases open to drive the flap into engagement with the central drain.

Preferably, reinforcing ribs are fixed to the inner side of the connecting portion and the shroud, and rubber seals are adhered around the connecting portion, the baffle and the flap.

The beneficial technical effects of the present invention compared with the prior art are as follows.

The fall prevention, deodorization and self-drainage safety device for manhole or rain grate according to the present invention includes a connecting part, a surrounding plate and a bottom plate, which are integrally connected, and the connecting part passes through the connecting hole via a bolt. is fixedly connected to the manhole or the rain grate frame, the manhole cover or the grate is hingedly connected to the manhole or the rain grate frame, the enclosing plate is provided with a plurality of drains, one side of the drain is provided with a baffle, and the baffle is is hinged to the shroud and located outside the drain, one side wall of the baffle is in close contact with the outer surface of the shroud, and the baffle is specifically attached to the drain via magnetic attraction, gravity or a lever rotation assembly. One side is rotatably connected to realize the drain opening and engaging operation.

The design of this invention is ingenious, the structure is simple and stable, and the outer wall of the shroud is tightly attached to the outer wall of the enclosure through the baffle. The drainage port can be automatically opened by the pressure of the water flowing inside to adapt to different discharge volumes, and the drainage efficiency is high.

The present invention is further described below in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a fall prevention, deodorization and automatic drainage safety device for a manhole or rain grate according to the present invention; 1 is a top view of a fall prevention, deodorization and automatic drain safety device for a manhole or rain grate according to the present invention; FIG. 1 is a schematic front view of Embodiment 1 of the present invention; FIG. FIG. 2 is a schematic front view of Embodiment 2 of the present invention; 3 is a schematic front view of Embodiment 3 of the present invention; FIG. FIG. 4 is a bottom view of the counterweight and flap of Embodiment 3 of the present invention; FIG. 5 is a bottom view of the central drainage hole, the first drainage hole and the second drainage hole of Embodiment 4 of the present invention;

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be described in more detail below in conjunction with drawings and embodiments. It should be noted that the specific embodiments described herein are for the purpose of illustrating the present invention only, and are not intended to limit the present invention.

As shown in FIGS. 1 to 7, the anti-drop, deodorant and self-drainage safety device for manhole or rain grate includes a connecting part 1, a surrounding plate 3 and a bottom plate 6, said connecting part 1 at the top being a side wall The connecting portion 1 is connected to the bottom plate 6 through the surrounding plate 3, and the connecting portion 1 is provided with a plurality of connecting holes 2. The connecting portion 1 passes through the connecting holes 2 via bolts to drain a manhole or rainwater. fixedly connected to a grate frame, a manhole cover or a rain grate is hingedly connected to the manhole or grate frame, a plurality of drains 4 are provided in the enclosing plate 3, and a baffle 5 is provided on one side of the grate 4; , the baffle 5 is hingedly connected to the surrounding plate 3 and located outside the drain port 4 , and one side wall of the baffle 5 is in close contact with the outer surface of the surrounding plate 3 . When installed, bolts are used to secure the device to existing manholes or rain grate frames to prevent theft, and when personnel descend into the manhole, the device can be removed via bolts for easy and quick operation. is.

Specifically, the dimension of the baffle 5 is slightly larger than the dimension of the drain port 4, and when water enters, the baffle opens due to the pressure of the water to discharge the water, and the baffle closes in a natural state to discharge odor. When a manhole cover or a rainwater grate is damaged, a vehicle or a pedestrian does not fall into the manhole, thereby improving use safety.

Specifically, the surrounding plate 3 has a circular or polygonal shape, and the surrounding plate 3 is integrally press-formed, which is simple and stable in structure.

As shown in FIG. 3, in Embodiment 1, specifically, the baffle 5 is attracted to the outer surface of the surrounding plate 3 via a magnet 8, and the tip of the baffle 5 is connected to the surrounding plate via a connecting member 7. Hinged to the plate 3, the baffle 5 completely covers the corresponding drain 4. A plurality of grooves are formed in the surrounding plate 3 on both sides of the drain port 4, and a plurality of the magnets 8 are installed in the grooves. In addition, a layer of mesh is added between the enclosing plate 3 and the rainwater grate to improve the filtration effect when draining rainwater.

During operation, after rainwater flows into the device through the rainwater grate, it must first be filtered by the mesh, and the dust mixed in the rainwater must be retained on the mesh, and the rainwater will flow through the mesh to the bottom plate, and at this time to the enclosing plate 3. The located baffle 5 begins to receive pressure from the rainwater, and with the increase in the pressure of the rainwater on the baffle, the set of erected magnets are separated from the baffle plate in order from bottom to top, and the drain opening gradually opens. As the drainage work progresses, the flow rate of rainwater decreases, and the magnet blocks are adsorbed to the baffles in order from top to bottom (because the intervals are different, the distance is the smallest positions form a suction connection first), bringing the baffle and shroud back into contact, thereby sealing the drain. Up to this point, a complete drainage operation is completed.

In addition, according to the length of time of use, the rain grate should be opened at regular intervals, the handrail should be pulled, and the mesh should be taken out and cleaned to avoid debris accumulation. Therefore, the present invention has the characteristics of quick drainage, elimination of back discharge of odor, avoid clogging, and quick cleaning of dust.

As shown in FIG. 4, in the second embodiment, specifically, the baffle 5 is in close contact with the outer wall of the surrounding plate 3 due to the action of gravity, and the tip of the baffle 5 is connected to the surrounding plate 3 via a connection member 7. and the included angle between the surrounding plate 3 and the bottom plate 6 is less than 90 degrees. When the baffle 5 is attached by gravity, a metal plate material having a relatively high density is preferentially considered as the material for making the baffle 5 to improve the sealing effect.

In another embodiment, a return spring is further included, one end of the return spring is fixedly connected to the side wall of the baffle 5 and the other end of the return spring is connected to the surrounding plate 3 . In operation, if there is not enough tight contact or the angle between the shroud and the bottom plate is greater than 90 degrees, the return spring can be used to pull or abut the baffle to ensure tight contact between the baffle and the outer wall of the shroud. and prevent odor emissions and, of course, proper consideration must be given to the modulus of elasticity of the return springs to ensure smooth baffle opening in the presence of water.

In addition, there is a protrusion 61 at the center of the top surface of the bottom plate 6, and the bottom of the drain port 4 extends to the top surface of the bottom plate 6, so that the middle of the bottom plate is high and the periphery is low to facilitate drainage. To reduce clogging of a drain port by foreign matter.

As shown in FIGS. 5 and 6, in the third embodiment, a central drainage port 10 is opened at the bottom end of the bottom plate 6, and one side of the central drainage port 10 is provided with a lever rotating assembly. A flap 91 is connected so as to be openable and closable, and the baffle 5 is connected so as to be openable and closable to the tip of the drain port 4 via a lever rotation assembly, the lever rotation assembly includes a counterweight 92 and a rotation shaft 93, and the flap 91 is openable and closable. Alternatively, the baffle 5 and the counterweight 92 are hingedly connected via the rotating shaft 93, and the mass of the counterweight 92 is greater than the mass of the flap 91 and the baffle 5, and the counterweight 92 is connected to the flap 91 or the baffle. 5 is driven to rotate around the rotating shaft 93 to complete the opening and engaging operation of the corresponding position of the drain port, and the included angle between the enclosing plate 3 and the bottom plate 6 is greater than 90 degrees.

In operation, under the action of the lever-rotating assembly, the flaps 91 or baffles 5 effect opening and engagement with the central drain 10 and side drains 4, respectively. In the absence of water inflow, the installation of the counterweight 92 keeps the baffle 5 in constant engagement with the outer wall of the shroud 3 and at the same time keeps the flap 91 in engagement with the central drain 10. and when rainwater or other water enters, the gravity and impact force of the water acts on the baffles and flaps, causing the baffles and flaps to flip outward and the water to drain through the center drain and the drains in the shroud; Improve the drainage efficiency, when the water is empty, the counterweight will rotate downwards around the axis of rotation under the force of gravity, and drive the flaps and baffles on the other side to rotate upwards in the opposite direction and corresponding respectively. Engaged with central drain and side drain, the device can realize automatic draining function and effectively prevent odor from escaping.

Specifically, in the fourth embodiment, as shown in FIG. 7, a central drainage port 10 is opened at the bottom end of the bottom plate 6, and a flap 91 is provided on one side of the central drainage port 10 via a lever rotating assembly. The opening and closing of the flap 91 and the baffle 5 are driven by a torsion spring 12, which is connected to the outer wall of the enclosing plate 3 and connected to one side of the central drain port 10 and of the enclosing plate. One ends of the flap 91 and the baffle 5 are both hinge-connected to the torsion spring 12, and both ends of the torsion spring 12 are connected to the flap 91, the outer surface of the baffle 5 and the surrounding plate. 3 and the torsion spring 12 is biased open to drive the flap 91 and baffle 5 into engagement with the central drain 10 and shroud plate drain 4 .

In operation, under the action of the torsion spring 12, the flaps 91 or baffles 5 effect opening and engagement with the central drain and side drains, respectively. In the absence of water inflow, the installation of the torsion spring keeps the baffle 5 in constant engagement with the outer wall of the shroud 3 and the flap 91 engages the central drain under the action of the torsion spring. If the condition is maintained and rainwater or other water enters, the gravity and impact force of the water will act on the baffles and flaps, causing them to flip outward and the water to exit the center drain and the drains in the shroud. When the water is discharged, the drainage efficiency is improved, and when the water is empty, the elastic force of the torsion spring is restored, and the flaps and baffles are engaged with the corresponding central drainage holes and side drainage holes, respectively, and the device is It can realize the automatic drainage function and effectively prevent the odor from dissipating.

Specifically, the drainage holes 4 on the sides are set in an elongated, trapezoidal or circular shape, and other geometrical through-holes may be adopted and designed according to actual needs. Simply, the outlet 4 includes a first outlet 41 and a second outlet 42, and the length of the first outlet 41 is greater than or equal to the length of the second outlet 42. . The different lengths of the first drain and the second drain can achieve effective drainage of different amounts of water, and when the water flows in, it will preferentially impact the flap of the central drain. When the water inflow increases, the flap of the first drain is opened at the same time to realize the simultaneous drainage of the central drain and the first drain. The mouth, the first drain port and the second drain port can be opened and drained at the same time to realize different amounts of water to be drained, thereby effectively improving the drain efficiency.

In addition, in all the above embodiments, reinforcing ribs 11 are fixed to the inner sides of the connecting portion 1 and the surrounding plate 3, thereby improving the connection strength between the two, improving the stability of the overall structure, and Extend service life. A rubber seal is adhered around the connection portion 1, the baffle 5, or the flap 91, and the combination of soft and hard materials improves the sealing effect in the engaged state.

In this specification, the terms "first" and "second" are used only to distinguish one entity or operation from the other entity or operation, It does not necessarily require or imply that any such actual relationship or order exists. Also, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, whereby a process, method, article or device comprising a set of elements may be as well as other elements not expressly recited or specific to such processes, methods, articles or devices.

The above-described embodiments merely describe the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Various modifications and improvements made to the means should all fall within the protection scope determined by the claims of the present invention.

REFERENCE SIGNS LIST 1 connecting part 2 connecting hole 3 enclosing plate 4 drain port 41 first drain hole 42 second drain hole 5 baffle 6 bottom plate 61 protrusion 7 connecting member 8 magnet 9 bottom baffle 91 flap 92 counterweight 93 rotating shaft 10 center drain hole 11 reinforcing rib 12 torsion spring

Claims (10)

A fall-proof, deodorant and self-draining safety device for a manhole or rain grate, comprising a connection (1), a shroud (3) and a bottom plate (6), said connection (1) at the top being a side wall is connected to the bottom plate (6) through the surrounding plate (3) located in the Fall protection, odor control and automatic drainage safety for manholes or rain grate fixedly connected to the manhole or grate frame through connection holes (2) to which the manhole cover or grate is hinged. In the device, said shroud (3) is provided with a plurality of drains (4), one side of said drains (4) is provided with a baffle (5), said baffle (5) is connected to said shroud (3). ) and located outside the drain outlet (4), one side wall of the baffle (5) is closely fitted to the outer surface of the shroud (3). Anti-drop, anti-odor and automatic drain safety device. The baffle (5) is in close contact with the outer wall of the enclosing plate (3) due to the action of gravity, and the tip of the baffle (5) is hingedly connected to the enclosing plate (3) via a connecting member (7), thereby enclosing the enclosing plate. Fall prevention, deodorization and automatic drainage safety device for manhole or rain grate according to claim 1, characterized in that the included angle between the plate (3) and the bottom plate (6) is less than 90 degrees. . The baffle (5) is attracted to the outer surface of the surrounding plate (3) via a magnet (8), and the tip of the baffle (5) is hingedly connected to the surrounding plate (3) via a connecting member (7). Fall protection, deodorization and automatic drainage safety for manhole or rain grate according to claim 1, characterized in that: Device. The manhole according to claim 3, characterized in that a plurality of grooves are formed in the surrounding plate (3) on both sides of the drain port (4), and a plurality of the magnets (8) are installed in the grooves. Or anti-drop, anti-odor and automatic drain safety device for rain grate. Further comprising a return spring, one end of the return spring is fixedly connected to the side wall of the baffle (5), the other end of the return spring is connected to the enclosing plate (3), the enclosing plate (3) and the bottom plate. Fall prevention, deodorization and automatic drainage safety device for manhole or rain grate according to claim 4, characterized in that the included angle between (6) is more than 90 degrees. The baffle (5) is openably connected to the tip of the drain port (4) via a lever rotation assembly, the lever rotation assembly includes a counterweight (92) and a rotation shaft (93), and the baffle (5) is ) and the counterweight (92) are hinge-connected via the rotating shaft (93), the mass of the counterweight (92) is greater than the mass of the baffle (5), and the counterweight (92) is driving the baffle (5) to rotate around the rotating shaft (93) to complete the opening and engaging work of the corresponding position of the drain port, and the enclosing plate (3) and the bottom plate (6); The anti-drop, anti-odor and automatic drainage safety device for manhole or rain grate according to claim 1, characterized in that the included angle between them is greater than 90 degrees. The bottom plate (6) has a protrusion (61) at the center of the top surface, the bottom of the drain port (4) extends to the top surface of the bottom plate (6), the drain port (4) is elongated, 5. The manhole or Anti-drop, anti-odor and automatic drain safety device for rain grate. A central drainage port (10) is opened at the bottom end of the bottom plate (6), and a flap (91) is connected to one side of the central drainage port (10) to be openable and closable through a lever rotation assembly, and the lever rotation The assembly includes a counterweight (92) and a pivot (93), the flap (91) and the counterweight (92) are hingedly connected via the pivot (93), and the counterweight (92) is greater than the mass of the flap (91), and the counterweight (92) drives the flap (91) to rotate around the rotation axis (93) to open the drain outlet at the corresponding position and The anti-drop, anti-odor and automatic drainage safety device for manhole or rain grate according to claim 1, characterized by completing the engaging operation. A central drainage port (10) is opened at the bottom end of the bottom plate (6), and a flap (91) is connected to one side of the central drainage port (10) to be openable and closable through a lever rotation assembly. 91) is driven by a torsion spring (12), said torsion spring (12) is connected to the outer wall of said shroud (3) and one side of said central drain (10) and said drain of shroud. Located at the tip of the mouth (4), one end of the flap (91) is hingedly connected to the torsion spring (12), and both ends of the torsion spring (12) are connected to the outer surface of the flap (91) and the Abutting on the outer surface of the surrounding plate (3), the torsion spring (12) is biased open to drive the flap (91) into engagement with the central drain (10). The anti-drop, deodorant and automatic drainage safety device for manhole or rain grate according to claim 1, wherein A reinforcing rib (11) is fixed to the inside of the connecting part (1) and the surrounding plate (3), and a rubber seal is adhered around the connecting part (1), the baffle (5) and the flap (91). The fall prevention, deodorization and automatic drainage safety device for manhole or rain grate according to claim 8 or 9, characterized in that

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