A mechanical grille

Abstract

The present invention discloses a mechanical grille, which includes a box body, a grille body, a mechanical flipping device, a water storage tank and a cover plate. The box body is provided with a water inlet and a water outlet. One end of the box body near the water inlet at the top is provided with an opening, and the grille body is arranged in the opening. One end of the grille body is arranged at the bottom of the water inlet, and the other end is fixed to one end of the mechanical flipping device. The end of the mechanical flipping device far from the grille body is connected to the water storage tank. The gravity of the water storage tank is less than the gravity of the grille body. The sewage on the top of the grille body can flow into the water storage tank. The water storage tank is provided with a water outlet hole, and the box body is fixed with a cover plate capable of blocking the water outlet hole. The advantages of the present invention are that the mechanical grille utilizes the sewage flowing into the water storage tank and drives the water storage tank to descend, causing the grille body to flip upwards, automatically dumping and collecting the garbage filtered by the grille body. The entire filtering process does not require the aid of power, realizing power-free sewage filtration, greatly saving energy and reducing operation and maintenance costs.

Description

[0001] This application is a divisional application of the application with the application number 202110886827.7, the application date of August 3, 2021, and the invention title of "A Mechanical Grille". Technical Field

[0002] The present invention relates to the technical field of garbage filtration, and specifically to a mechanical grille. Background Art

[0003] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging it into a certain water body or reusing it. Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily lives of ordinary people. Efficient and high-quality treatment of sewage is of great practical significance for the protection of water resources and the formation of sustainable development industries. When deeply filtering sewage with a filter screen, the waste debris and impurities contained in the sewage may affect the filtration system due to their large particles, reducing the filtration efficiency. At this time, it is necessary to filter a large amount of solid garbage contained in the sewage.

[0004] A mechanical grille is one of the purification and filtration devices generated in sewage treatment technology. It greatly reduces the labor intensity of workers, protects the health of workers, reduces the head loss of the influent, and improves the efficiency of the pumping station. There are many types of mechanical grilles, generally consisting of a grille for intercepting pollutants, a rake for removing the pollutants intercepted by the grille, a traction component for driving the rake to operate, and a transmission device, etc. For example, the Chinese utility model patent with the publication number CN208340214U discloses a sewage treatment device with an easily cleanable filter plate, which adjusts the rotation of the filter plate on the rotating shaft through a double-shaft motor, so that the filter plate rotates when debris accumulates to the movable door and is cleaned; the Chinese utility model patent with the publication number CN201721438298.X discloses a grille sewage removal system, which filters sewage through an obliquely inserted grille; the Chinese utility model patent with the publication number CN201610546876.5 discloses a filtering mechanism of a swill separator, which filters through a filter screen; however, the above patents all need to realize the rotation operation of the filter plate through external power, which consumes energy and has a high operation and maintenance cost. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to achieve non-powered sewage filtration, save energy, and reduce operation and maintenance costs.

[0006] To solve the above technical problem, the present invention provides the following technical solutions:

[0007] A mechanical grille, comprising a box body, a grille body, a mechanical flipping device, a water storage tank and a cover plate. The box body has a hollow interior structure, and is provided with a water inlet and a water outlet. One end of the box body near the water inlet at the top is provided with an opening, and the grille body is arranged in the opening. One end of the grille body is arranged at the bottom of the water inlet, and the other end is fixed to one end of the mechanical flipping device. The end of the mechanical flipping device far from the grille body is connected to the water storage tank. The gravity of the water storage tank is less than that of the grille body, and the sewage on the top of the grille body can flow into the water storage tank. The water storage tank is provided with a water outlet hole, and the box body is fixed with a cover plate capable of blocking the water outlet hole.

[0008] This mechanical grille utilizes the sewage flowing into the water storage tank and driving the water storage tank to descend, causing the grille body to flip upwards, automatically dumping and collecting the garbage filtered by the grille body. The entire filtering process does not require external power, achieving power-free sewage filtration, greatly saving energy and reducing operation and maintenance costs.

[0009] Preferably, the mechanical flipping device includes a first rotating shaft, a first connecting rod and a second connecting rod. The first rotating shaft is rotatably fixed on the box body at the opening. The end of the grille body far from the water inlet is fixedly connected to the first rotating shaft. One end of the first connecting rod is fixedly connected to the first rotating shaft, and the other end is hinged to the second connecting rod to form a connecting rod mechanism. The end of the second connecting rod far from the first connecting rod is connected to the water storage tank; the descent of the water storage tank drives the first rotating shaft to rotate through the connecting rod structure, causing the grille body to flip upwards.

[0010] Preferably, the mechanical flipping device includes a second rotating shaft, a first rotating disk, a fixed pulley and a first pulling rope. The second rotating shaft is rotatably fixed on the box body at the opening. The end of the grille body far from the water inlet is fixedly connected to the second rotating shaft. The first rotating disk is fixed on the second rotating shaft. The fixed pulley is fixed on the box body at the top of the water storage tank. One end of the first pulling rope is wound and fixed on the first rotating disk, and the other end is wound around the fixed pulley and then connected to the water storage tank; when the water storage tank descends, it drives the first rotating disk to rotate through the first pulling rope, and then drives the second rotating shaft to rotate, causing the grille body to flip upwards.

[0011] Preferably, the mechanical flipping device includes a third rotating shaft, a second rotating disk, a movable pulley and a second pulling rope. The third rotating shaft is rotatably fixed on the box body at the opening. The end of the grille body far from the water inlet is fixedly connected to the third rotating shaft. The second rotating disk is fixed on the third rotating shaft. The movable pulley is fixed on the water storage tank. One end of the second pulling rope is wound and fixed on the second rotating disk, and the other end is wound around the movable pulley and then connected to the box body; when the water storage tank descends, it drives the second rotating disk to rotate through the second pulling rope, and then drives the third rotating shaft to rotate, causing the grille body to flip upwards.

[0012] By setting up a movable pulley, the descending height of the water storage tank can be reduced, thereby lowering the overall height of the box body, further reducing the height difference between the water inlet and the water outlet, and finally reducing the burial depth of the drainage pipe for discharging the filtered sewage, thus reducing the construction cost.

[0013] Preferably, a limiting rod is vertically fixed inside the box body, a sliding groove is vertically arranged on the limiting rod, and a sliding block clamped in the sliding groove is arranged on the outer wall of the water storage tank, so that the water storage tank moves vertically on the limiting rod.

[0014] Preferably, a plugging device is further included. The plugging device includes a telescopic spring, a fixing plate and a plugging plate. The top of the telescopic spring is fixed on the box body, the bottom is connected to the fixing plate. One end of the fixing plate is vertically fixed with a plugging plate capable of plugging the water inlet, and the other end faces the grille body and is attached to the bottom of the grille body.

[0015] Preferably, the cover plate is fixed on the top of the box body through an elastic telescopic rod, and a first magnet capable of attracting the water storage tank is fixed at the bottom of the cover plate.

[0016] Preferably, a buffer spring is fixed at the bottom of the water storage tank or the bottom of the box body.

[0017] Preferably, water flow holes are arranged on the grille body, and the output end of the water flow holes is arranged on the top of the water storage tank.

[0018] Preferably, a water trough plate is fixed between the water flow holes and the water storage tank. One end of the water trough plate is arranged at the bottom of the water flow holes, and the other end is arranged on the top of the water storage tank.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This mechanical grille utilizes the inflow of sewage into the water storage tank to drive the water storage tank to descend, causing the grille body to flip upwards, automatically dumping and collecting the garbage filtered by the grille body. The entire filtering process does not require external power, realizing power-free sewage filtration, greatly saving energy and reducing operation and maintenance costs.

[0021] 2. By setting up a movable pulley, the descending height of the water storage tank can be reduced, thereby lowering the overall height of the box body, further reducing the height difference between the water inlet and the water outlet, and finally reducing the burial depth of the drainage pipe for discharging the filtered sewage, thus reducing the construction cost.

[0022] 3. Through the setting of the plugging device, the water inlet can be automatically closed when the grille body flips, preventing sewage from entering the box body after the grille body flips. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of Embodiment 1 of the present invention;

[0024] Figure 2 Partial schematic diagram of Embodiment 1 of the present invention;

[0025] Figure 3 Cross-sectional view of Embodiment 1 of the present invention;

[0026] Figure 4 is Figure 3 enlarged view of A in;

[0027] Figure 5 Partial schematic diagram of Embodiment 2 of the present invention;

[0028] Figure 6 Schematic diagram of Embodiment 3 of the present invention;

[0029] Figure 7 Partial schematic diagram of Embodiment 3 of the present invention. Detailed implementation manners

[0030] To facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described below with reference to the accompanying drawings of the specification.

[0031] In this application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In this application, unless otherwise clearly defined and limited, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0033] Embodiment 1

[0034] Refer to Figures 1 to 3, this embodiment discloses a mechanical grille, which includes a box body 1, a grille body 2, a mechanical flipping device 3, a water storage tank 4, a sink plate 5, a cover plate 6 and a plugging device 7. The box body 1 has a hollow interior structure. The box body 1 is provided with a water inlet 101 and a water outlet 102. At one end of the top of the box body near the water inlet 101, there is an opening 103. The grille body 2 is arranged in the opening 103. One end of the grille body is arranged at the bottom of the water inlet 101 to block the opening 103 and filter the sewage entering from the water inlet 101. The other end is fixed to one end of the mechanical flipping device 3. The end of the mechanical flipping device 3 far from the grille body 2 is connected to the water storage tank 4. The top of the water storage tank 4 is open and its gravity is less than that of the grille body 2. A water flow hole 201 is also opened at the top of the grille body 2. A sink plate 5 is fixed between the water flow hole 201 and the water storage tank 4. One end of the sink plate 5 is arranged at the bottom of the water flow hole 201, and the other end is arranged at the top of the water storage tank 4 to introduce the water flowing in from the water flow hole 201 into the water storage tank 4. An outlet hole 401 is opened at the bottom of the water storage tank 4. A cover plate 6 capable of plugging the outlet hole 401 is fixed on the box body 1 at the top of the water storage tank 4.

[0035] This mechanical grille utilizes the sewage flowing into the water storage tank 4 to drive the water storage tank to descend, causing the grille body 2 to flip upward, automatically dumping and collecting the garbage filtered by the grille body 2. The entire filtering process does not require external power, achieving power-free sewage filtration, greatly saving energy and reducing operation and maintenance costs.

[0036] The grille body 2 is in a funnel shape. The grille body 2 includes a front plate 202, a rear plate 203 and two side plates 204. One end of the front plate 201 is connected to the mechanical flipping device 3, and the other end is arranged towards the water inlet 101 and its height is lower than the height of the end where the front plate 202 is connected to the mechanical flipping device 3. The end of the front plate 202 far from the mechanical flipping device 3 is fixed to the rear plate 203. The free end of the rear plate 203 is arranged towards the bottom of the water inlet 101 and is attached to the inner wall of the box body 1. The side plates 204 are also fixed between the front plate 202 and the rear plate 203. The side plates 204 are triangular and are attached to the inner wall of the box body 1 to prevent the sewage from entering the box body 1 without being filtered. A plurality of water draining holes 2021 are provided on the front plate 202 for filtering sewage. The water flow hole 201 is arranged at one end of the front plate 202 close to the mechanical flipping device 3.

[0037] The mechanical flipping device 3 includes a first rotating shaft 301, a first connecting rod 302 and a second connecting rod 303. The first rotating shaft 301 is fixedly mounted on the box body 1 at the opening 103 in a rotatable manner. One end of the front plate 202 away from the water inlet 101 is fixedly connected to the first rotating shaft 301. One end of the first connecting rod 302 is fixedly connected to the first rotating shaft 301, and the other end is hinged to the upper end of the second connecting rod 303 to form a connecting rod mechanism. The lower end of the second connecting rod 303 is the end away from the first connecting rod 302 and is connected to the water storage tank 4. Specifically, refer to Figure 3 When the water storage tank 4 descends, it drives the first rotating shaft 301 to rotate clockwise through the connecting rod structure, and then drives the grille body 2 to rotate clockwise and turn up to dump the garbage, realizing power-free garbage cleaning.

[0038] Further, the cover plate 6 is fixed on the top of the box body 1 through an elastic telescopic rod 8 that can be vertically telescoped. Through the setting of the elastic telescopic rod 8, when the cover plate 6 seals the water outlet hole 401 on the water storage tank 4, it plays a buffering role, and at the same time enables the cover plate 6 to accurately align with the water outlet hole 401 to prevent the cover plate 6 from shifting. A first magnet (not marked in the figure) capable of attracting the water storage tank 4 is fixed at the bottom of the cover plate 6 to ensure that the cover plate 6 can seal the water inlet hole 401; further, a sealing ring (not marked in the figure) is also provided on the water inlet hole 41 to improve the sealing performance between the cover plate 6 and the water inlet hole 401.

[0039] Still further, a second magnet 9 capable of attracting the bottom of the box body 1 is fixed at the bottom of the water storage tank 4, so that when the water storage tank 4 descends, it is attracted to the box body 1 through the second magnet 9. Specifically, an iron block is fixed on the bottom of the box body 1 at the bottom of the second magnet 9 or the bottom of the box body 1 is made of iron material, so that the second magnet 9 can attract downward. It should be noted that the second magnet 9 can also be fixed on the bottom of the box body 1 at the bottom of the water storage tank 4, and an iron block is fixed on the bottom of the water storage tank 4 or the bottom of the water storage tank 4 is made of iron material.

[0040] Since the attraction force when the second magnet 9 attracts the box body 1 or the water storage tank 4 is relatively large, it will cause the water storage tank 4 to descend instantaneously, and then drive the grille body 2 to vibrate, facilitating the dumping of the garbage on the grille body 2. Further, the buffer spring 10 is fixed at the bottom of the water storage tank 4 or on the bottom of the box body 1 at the bottom of the water storage tank 4 to buffer the collision between the water storage tank 4 and the bottom of the box body 1 and improve the service life of the water storage tank 4 and the box body 1.

[0041] Refer to Figure 4, the plugging device 7 includes a telescopic spring 701, a fixing plate 702 and a plugging plate 703. The top of the telescopic spring 701 is fixed on the box body 1 at the bottom of the water inlet 101, the bottom of the telescopic spring 701 is connected to the fixing plate 702, one end of the fixing plate 702 is vertically fixed with a plugging plate 703 capable of plugging the water inlet 101, and the other end is arranged towards the rear plate 203 on the grille body 2. When the grille body 2 is filtering, the rear plate 203 is in contact with the fixing plate 702, which is used to press the fixing plate 702, so that the plugging plate 703 is away from the water inlet 101, and further the water inlet 101 is opened. At this time, the telescopic spring 701 is in a stretched state. When the grille body 2 is turned upwards, the rear plate 203 loses the pressure on the fixing plate 702, and the telescopic spring 701 returns to its natural state, which will drive the fixing plate 702 to move upwards, and further make the plugging plate 703 move upwards to plug the water inlet 101, realizing the automatic opening and closing of the water inlet 101, and preventing sewage from entering the box body 1 after the grille body 2 is turned over.

[0042] The working principle of the present invention is as follows: Before the sewage enters the box body 1, due to the gravity of the water storage tank 4 being less than the gravity of the grille body 2, the grille body 2 is located below the water inlet 101, and the rear plate 203 presses the fixing plate 702, so that the plugging plate 703 is away from the water inlet 101, and further the water inlet 101 is opened. Then the sewage enters the box body 1 and is filtered through the water drainage holes 2021 on the front plate 202. After filtering, the impurities remain on the grille body 2, and the filtered water is discharged from the water outlet 102.

[0043] When the impurities on the grille body 2 block the water drainage holes 2021 on the front plate 202, the sewage cannot be filtered, resulting in the water level rising above the grille body 2. The sewage enters through the flowing water holes 2021 and enters the water tank plate 5 and then is stored in the water storage tank 4, causing the gravity of the water storage tank 4 to increase. When the gravity in the water storage tank 4 is greater than the gravity of the grille body 2, the water storage tank 4 descends and drives the first rotating shaft 301 to rotate clockwise through the link mechanism composed of the first connecting rod 302 and the second connecting rod 303, thereby driving the grille body 2 to turn upward clockwise. At this time, the rear plate 203 on the grille body 2 loses the pressure on the fixing plate 702, and the telescopic spring 701 will drive the fixing plate 702 to move upward, so that the blocking plate 703 moves upward and blocks the water inlet, preventing sewage from entering the box body 1 after the grille body 2 flips. After the grille body 2 turns upward, the garbage on the grille body 2 slides down to the top of the box body 1 under the action of gravity and is collected; while the grille body 2 is flipping, the cover plate 6 on the water outlet hole 401 at the bottom of the water storage tank 4 is opened as the water storage tank 4 descends. The second magnet 9 attracts the box body 1. Due to the large attractive force when the second magnet 9 attracts the box body 1, the water storage tank 4 will descend instantaneously, thereby driving the grille body 2 to vibrate, facilitating the removal of the garbage on the grille body 2. As the gravity of the water storage tank 4 decreases, until the gravity of the water storage tank 4 is less than that of the grille body 2, the grille body 2 rotates back to the initial filtering position, drives the first rotating shaft 301 to rotate counterclockwise, and then drives the water storage tank 4 to rise through the link mechanism composed of the first connecting rod 302 and the second connecting rod 303. The second magnet 9 is separated from the bottom of the box body 1, and the cover plate 6 blocks the water outlet hole 401; in addition, while the grille body 2 is rotating back, the rear plate 203 presses the fixing plate 703 to move downward, causing the blocking plate 703 to move downward and away from the water inlet 101, realizing the opening of the water inlet 101 and filtering the subsequent sewage.

[0044] Embodiment 2

[0045] Refer to Figure 5 In this embodiment, the difference from Embodiment 1 is that the mechanical flipping device 3 includes a second rotating shaft 304, a first rotating disk 305, a fixed pulley 306 and a first pulling rope 307. The second rotating shaft 304 is rotatably fixed on the box body 1 at the opening 103. One end of the front plate 202 away from the water inlet 101 is fixedly connected to the second rotating shaft 304. Both ends of the second rotating shaft 304 are fixedly connected with the first rotating disk 305. The fixed pulley 306 is fixed on the inner wall of the box body 1 at the top of the water storage tank 4. One end of the first pulling rope 307 is wound and fixed on the first rotating disk 305 in the clockwise direction, and the other end is wound around the fixed pulley 306 and then connected to the water storage tank 4. Specifically, when the water storage tank 4 descends, it drives the first rotating disk 305 to rotate clockwise through the first pulling rope 307, thereby driving the second rotating shaft 304 to rotate clockwise, causing the grille body 2 to turn upward clockwise to dump the garbage, realizing the non-powered cleaning of the garbage.

[0046] Embodiment III

[0047] Refer to Figure 6 and Figure 7 In this embodiment, the difference from Embodiment I is that the mechanical flipping device 3 includes a third rotating shaft 308, a second rotating disc 309, a movable pulley 310 and a second pulling rope 311. The third rotating shaft 308 is rotatably fixed on the box body 1 at the opening 103. One end of the front plate 202 away from the water inlet 101 is fixedly connected to the third rotating shaft 308. Both ends of the third rotating shaft 308 are fixed with the second rotating disc 309. Two movable pulleys 310 are respectively fixed on the outer walls on both sides of the water storage tank 4. One end of the second pulling rope 311 is wound and fixed on the second rotating disc 309 in the clockwise direction, and the other end is wound around the movable pulley 310 and then fixed on the inner wall of the box body 1. Specifically, when the water storage tank 4 descends, it drives the movable pulley 310 to descend, and drives the second rotating disc 309 to rotate clockwise through the second pulling rope 311, thereby driving the third rotating shaft 308 to rotate clockwise, causing the grille body 2 to rotate upward clockwise to dump garbage, realizing power-free garbage cleaning.

[0048] It should be noted here that during the actual construction of the sewage pipeline, it is necessary to reduce the height difference between the drainage pipeline for discharging the sewage before filtration and the drainage pipeline for discharging the sewage after filtration, so as to reduce the burial depth of the drainage pipeline for discharging the sewage after filtration and reduce the construction cost. In this embodiment, the setting of the movable pulley 309 is adopted, which can reduce the descending height of the water storage tank 4, approaching half of the descending height of the water storage tank 4 in Embodiment I, thereby reducing the overall height of the box body 1, further reducing the height difference between the water inlet 101 and the water outlet 102, and finally reducing the burial depth of the drainage pipeline for discharging the sewage after filtration and reducing the construction cost.

[0049] Furthermore, a limiting rod 11 is vertically fixed in the box body 1. A chute (not marked in the figure) is vertically provided on the limiting rod 11. A sliding block 12 is provided on the outer wall of the water storage tank 4 and is clamped in the chute, causing the water storage tank 4 to move vertically on the limiting rod 11, preventing the water storage tank 4 from shifting in the vertical direction, ensuring that the cover plate 6 can accurately align with the water outlet hole 401, and realizing the blocking of the water outlet hole 401.

[0050] Embodiment IV:

[0051] The difference between this embodiment and the above Embodiments I to III is that the water flow holes 201 are provided on the side plates 204. When the upper water drainage holes of the front plate 202 are blocked, the sewage flows into the water storage tank 4 through the water flow holes 201 on the side plates 204. Of course, water flow holes 201 can also be provided on both the side plates 204 and the front plate 202, and the sewage enters the water storage tank 4 through the water flow holes 201 at both places.

[0052] Furthermore, when water flow holes 201 are provided on both the side plate 204 and the front plate 202, the height of the water flow holes 201 on the side plate 204 is higher than the height of the water flow holes on the front plate 202. Specifically, when floating objects block the water flow holes 201 in the sewage at the upper part of the grille body 1, causing water to be unable to enter the water storage tank 4 through the water flow holes 201 on the front plate 202, the water level further rises until it reaches the same height as the water flow holes 201 on the side plate 204. Then, the water enters through the water flow holes 201 on the side plate 204 and flows into the water storage tank 4 through the water tank plate 5, causing the water storage tank 4 to descend and driving the grille body 2 to rotate. This process also does not require external power to introduce water into the water storage tank 4, achieving power-free operation.

[0053] Embodiment Five

[0054] Based on Embodiment One, in this embodiment, a garbage collection mechanism capable of receiving the garbage dumped by the grille body 2 is provided at the top of the box body, which can specifically be a garbage collection frame or a garbage collection basket.

[0055] Embodiment Six

[0056] Based on Embodiment Five, in this embodiment, a garbage full reminder mechanism is provided at the top of the box body. In this embodiment, the garbage full reminder mechanism is a gravity sensor, and the garbage collection mechanism is placed on top of the garbage full reminder mechanism. When the gravity of the garbage collection mechanism meets the set value of the garbage full reminder mechanism, the garbage full reminder mechanism will automatically alarm, reminding the staff that the garbage in the garbage collection mechanism is full and it is necessary to further transport the garbage collection mechanism away and replace it with an empty garbage collection mechanism for garbage collection.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0058] The above-described embodiments only represent the implementation manners of the invention. The protection scope of the present invention is not limited to the above embodiments only. For those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. A mechanical grille, characterized in that: It includes a box body, a grille body, a mechanical flipping device, a water storage tank and a cover plate. The box body has a hollow interior structure. There are a water inlet and a water outlet on the box body. There is an opening at one end of the top of the box body near the water inlet. The grille body is arranged in the opening. One end of the grille body is arranged at the bottom of the water inlet, and the other end is fixed to one end of the mechanical flipping device. The end of the mechanical flipping device far from the grille body is connected to the water storage tank. The gravity of the water storage tank is less than that of the grille body. The sewage on the top of the grille body can flow into the water storage tank. There is a water outlet hole on the water storage tank, and a cover plate capable of blocking the water outlet hole is fixed on the box body; The mechanical flipping device includes a third rotating shaft, a second rotating disc, a movable pulley and a second pulling rope. The third rotating shaft is rotatably fixed on the box body at the opening. The end of the grille body far from the water inlet is fixedly connected to the third rotating shaft. The second rotating disc is fixed on the third rotating shaft. The movable pulley is fixed on the water storage tank. One end of the second pulling rope is wound and fixed on the second rotating disc, and the other end is wound around the movable pulley and then connected to the box body; When the water storage tank descends, it drives the second rotating disc to rotate through the second pulling rope, and then drives the third rotating shaft to rotate, causing the grille body to flip upward.

2. The mechanical grille according to claim 1, characterized in that: A limiting rod is vertically fixed in the box body. There is a sliding groove vertically on the limiting rod. A sliding block clamped in the sliding groove is arranged on the outer wall of the water storage tank, so that the water storage tank makes a vertical movement on the limiting rod.

3. The mechanical grille according to claim 1, characterized in that: It also includes a blocking device. The blocking device includes a telescopic spring, a fixing plate and a blocking plate. The top of the telescopic spring is fixed on the box body, and the bottom is connected to the fixing plate. One end of the fixing plate is vertically fixed with a blocking plate capable of blocking the water inlet, and the other end faces the grille body and fits against the bottom of the grille body.

4. The mechanical grille according to claim 1, characterized in that: The cover plate is fixed on the top of the box body through an elastic telescopic rod, and a first magnet capable of attracting the water storage tank is fixed on the bottom of the cover plate.

5. The mechanical grille according to claim 1, characterized in that: A buffer spring is fixed at the bottom of the water storage tank or the bottom of the box body.

6. The mechanical grille according to claim 1, characterized in that: There are water flow holes on the grille body, and the output end of the water flow holes is arranged on the top of the water storage tank.

7. The mechanical grille according to claim 6, characterized in that: A water trough plate is fixed between the water flow holes and the water storage tank. One end of the water trough plate is arranged at the bottom of the water flow holes, and the other end is arranged on the top of the water storage tank.

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