Well lid assembly and well lid

Abstract

The utility model provides a manhole cover assembly and a manhole cover, the manhole cover assembly comprises a frame installed in a road well pit, a plurality of water inlet grooves are formed in one side of the frame in an array mode, an L-shaped groove is formed in the side edge of the frame, and turbine blades are rotatably arranged in the plurality of water inlet grooves; a speed reducer driven by turbine blades is fixedly arranged on the inner wall, located on one side of the water inlet groove, of the L-shaped groove, the speed reducer drives a connecting rod to rotate through a cross-shaped universal shaft, and a connecting shaft in transmission with the connecting rod movably penetrates through one side, away from the water inlet groove, of a main water inlet in the middle of the frame. The device can automatically open the well lid main body to drain water according to the water quantity on a road and automatically close the well lid main body after completion, so that a worker does not need to manually open the well lid main body to drain water.

Description

Technical Field

[0001] The utility model relates to a manhole cover assembly and a manhole cover. Background Art

[0002] A manhole cover is a facility installed on the road to prevent people or objects from falling. It is often used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc. It also serves the purpose of road drainage on rainy days. When there is water on the road, construction workers will generally open the manhole cover to increase the water flow, so that the water on the road can be discharged faster.

[0003] For example, Chinese patent number CN201920866942.6 is an automatic flood discharge manhole cover; in actual use, it still has the following shortcomings:

[0004] The above patent mainly controls the opening and closing of the manhole cover assembly by means of a float. Even if it is opened, the manhole cover cannot be completely opened, which will also result in low water flow and affect the road drainage effect. At the same time, the setting of the float can only be used when water accumulates in the drainage pit. The water in the drainage pit will flow out in time, which may affect the floating of the float, thereby causing the drainage effect of the manhole cover to deteriorate. Utility Model Content

[0005] The utility model provides a manhole cover assembly and a manhole cover, which can effectively solve the above problems.

[0006] The utility model is achieved in this way:

[0007] A manhole cover assembly and a manhole cover, the manhole cover assembly comprises a frame installed in a road pit, a plurality of water inlet grooves are arranged in an array on one side of the frame, an L-shaped groove is arranged on the side of the frame, and turbine blades are rotatably arranged inside the plurality of water inlet grooves;

[0008] The inner wall of the L-shaped groove located on one side of the water inlet groove is fixed with a reducer for driving the turbine blades. The reducer drives the connecting rod to rotate through a cross universal joint. The main water inlet in the middle of the frame is movable away from the side of the water inlet groove and is penetrated by a connecting shaft that realizes transmission with the connecting rod.

[0009] As a further improvement, a transmission shaft is movably inserted inside several of the water inlet grooves, and the transmission shaft passes through and is fixed in the middle of several of the turbine blades, and one end of the transmission shaft extends into the L-shaped groove and is fixed to the output shaft of the reducer.

[0010] As a further improvement, a fixing seat for the connecting rod to movably pass through is fixedly arranged on the side of the L-shaped groove inner cavity away from the reducer.

[0011] As a further improvement, the connecting rod and the connecting shaft are both provided with a helical gear at the ends facing each other, and the two helical gears are meshed with each other.

[0012] As a further improvement, an L-shaped water blocking plate is fixedly provided on one side of the upper groove of the plurality of water inlet grooves, one end of the L-shaped water blocking plate is located in the middle of the water inlet groove and the lower end extends to the top of the turbine blade with a gap.

[0013] As a further improvement, an L-shaped cover is inserted and fixed to the upper opening of the L-shaped groove.

[0014] A manhole cover comprises a manhole cover body having one end rotatably arranged on the main water inlet side away from a reducer, the connecting shaft passes through one side of the fixed manhole cover body and movably intersperses with the side wall of the frame, and a limiting plate is fixed on the inner wall of the frame to limit the manhole cover body.

[0015] The beneficial effects of the utility model are:

[0016] (1) The utility model drives the main body of the manhole cover to rotate through the rotation of the turbine blades and then through the rotation of the reducer, the cross universal joint, the connecting rod and the connecting shaft, thereby opening the main water inlet and achieving drainage. This setting can be opened and closed automatically according to the size of the water flow, effectively saving labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the installation of the reducer and the frame of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the framework of the utility model;

[0020] Figure 3 This is an exploded axonometric diagram of the utility model;

[0021] Figure 4 It is an enlarged view of the utility model A;

[0022] Figure 5 This is a schematic diagram of the connection between the frame and the manhole cover of the utility model.

[0023] Description of Figure Numbers:

[0024] 1. Frame; 2. L-shaped cover; 3. Manhole cover body; 4. L-shaped water blocking plate; 5. Water inlet groove; 6. Turbine blades; 7. Reducer; 8. Cross universal joint; 9. Connecting rod; 10. Fixed seat; 11. L-shaped groove; 12. Main water inlet; 13. Bevel gear; 14. Connecting shaft; 15. Transmission shaft; 16. Limit plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] like Figures 1 to 5 As shown, the utility model provides a manhole cover assembly, including a frame 1 installed in a road pit, a plurality of rectangular water inlet grooves 5 are arranged in an equidistant array on one side of the frame 1, and a filter screen can be arranged on the upper end of the water inlet groove 5 to prevent foreign solids from entering the water inlet groove 5 and causing the turbine blade 6 to be stuck and unable to rotate. An L-shaped groove 11 is arranged on the side of the frame 1, and the width of the L-shaped groove 11 is greater than the width of the total water inlet 12. The position of the L-shaped groove 11 and the water inlet groove 5 (such as Figure 3 As shown, an L-shaped cover 2 is fixed to the upper opening of the L-shaped groove 11 by bolts, and a sealing ring is provided between the side of the L-shaped cover 2 and the connection between the L-shaped groove 11 to prevent external water from flowing into the L-shaped groove 11 and causing corrosion to metal parts such as the cross universal joint shaft 8.

[0028] like Figure 2 , 3 4. A transmission shaft 15 is movably inserted into the middle of the inner cavity of several water inlet grooves 5. The transmission shaft 15 passes through and is fixed in the middle of several turbine blades 6. One end of the transmission shaft 15 extends into the L-shaped groove 11 and is fixed to the output shaft of the reducer 7 through a coupling.

[0029] like Figure 2 , 34. There is a gap between both sides of the turbine blade 6 and the inner wall of the water inlet groove 5, so that water can pass smoothly. At the same time, the structure of the turbine blade 6 (such as Figure 3 As shown), the curved portion thereof is upward and can receive more water to achieve rotation.

[0030] like Figure 2 , 4 A reducer 7 is fixedly installed on the inner wall of the L-shaped groove 11 on one side of the water inlet groove 5. The input shaft of the reducer 7 is fixedly connected to the transmission shaft 15 through a coupling to realize power transmission. The output shaft of the reducer 7 is fixed to one end of the cross universal joint 8 through a flange, and the other end of the cross universal joint 8 is fixed to one end of the connecting rod 9 through a flange, and the cross universal joint 8 is set at an inclined angle. A total water inlet 12 is opened in the middle of the frame 1, and a connecting shaft 14 is movably penetrated on the side of the total water inlet 12 away from the water inlet groove 5, and the connecting shaft 14 extends to the inside of the L-shaped groove 11.

[0031] A fixing seat 10 is fixedly arranged on the side of the inner cavity of the L-shaped groove 11 away from the reducer 7. The reducer 7 plays the role of reducing speed and increasing torque. The connecting rod 9 movably passes through the middle part of the fixing seat 10. It should be noted that the connecting rod 9 is installed with the fixing seat 10 through axle measurement. Since this method is known to the public, the specific installation method will not be described in detail. A bevel gear 13 is fixedly arranged on the opposite end of the connecting rod 9 and the connecting shaft 14. The two bevel gears 13 mesh with each other to realize power transmission.

[0032] An L-shaped water blocking plate 4 is fixed on one side of the upper groove of the water inlet grooves 5, and the upper end surface of the L-shaped water blocking plate 4 is flush with the upper end surface of the frame 1. One end of the L-shaped water blocking plate 4 is located in the middle of the water inlet groove 5, thereby leaving a water inlet smaller than the total water inlet 12. This arrangement can concentrate the water flow, and the lower end of the L-shaped water blocking plate 4 extends to the top of the turbine blade 6 and leaves a gap. The gap can make the turbine blade 6 rotate smoothly, and at the same time, it also prevents larger solids from entering the gap between the turbine blade 6 and the water inlet groove 5. The setting of the L-shaped water blocking plate 4 can enable the turbine blade 6 to achieve unidirectional rotation.

[0033] A manhole cover comprises a manhole cover body 3, one end of which is rotatably arranged on the side of the main water inlet 12 away from the reducer 7, a connecting shaft 14 passes through and fixes one side of the manhole cover body 3, and the side of the connecting shaft 14 away from the L-shaped groove 11 is movably interlaced with the side wall of the frame 1, and the manhole cover body 3 is provided with an arc chamfer on one side of the connecting shaft 14 to facilitate the rotation of the manhole cover body 3 and the frame 1, and an arc angle is provided at the lower end of the other side of the manhole cover body 3, and the arc angle facilitates the separation of the free end of the manhole cover body 3 from the frame 1.

[0034] A limit plate 16 is fixedly disposed on the inner wall of the frame 1. The limit plate 16 is set in a 'U' shape. The opening of the limit plate 16 is located on one side of the connecting shaft 14. Under normal conditions, the limit plate 16 abuts against the lower end of the manhole cover body 3 to achieve a supporting effect.

[0035] Principle and process of this utility model:

[0036] When there is too much rain on the road, the water flows rapidly through the space between the L-shaped water blocking plate 4 and the water inlet groove 5 into the water inlet groove 5. Under the potential energy of the water, the water will impact the blades of the turbine blade 6 and then rotate the turbine blade 6. The rotation of the turbine blade 6 drives the transmission shaft 15 to rotate and then drives the input shaft of the reducer 7 to rotate, so that the reducer 7 works. After the reducer 7 decelerates and increases torque, its output shaft drives the cross universal shaft 8 to rotate, and then drives the connecting rod 9 to rotate. The connecting rod 9 drives the connecting shaft 14 to rotate through the engagement of two bevel gears 13. The connecting shaft 14 then drives the manhole cover body 3 to rotate with the connecting shaft 14 as the rotation axis, so that the manhole cover body 3 is separated from the frame 1 and the total water inlet 12 is opened, so that the water on the road is discharged through the total water inlet 12.

[0037] When the manhole cover body 3 is rotated into place, the turbine blades 6 will not rotate under the impact of the water flow. At the same time, when the water flow decreases and is not sufficient to drive the turbine blades 6 to rotate, it means that the water on the road has been drained. At this time, the manhole cover body 3 slowly moves downward under the action of its own gravity and then closes with the frame 1 again.

[0038] When the manhole cover body 3 descends, it will drive the connecting shaft 14 to rotate in the reverse direction, thereby driving the turbine blades 6 to rotate in the reverse direction. Since the reducer 7 has a large resistance when rotating in the reverse direction, the manhole cover body 3 can be slowly descended, thereby reducing the strong collision between the manhole cover body 3 and the frame 1.

[0039] In summary, the device can automatically open the manhole cover body 3 to drain water according to the amount of water on the road, and automatically close after completion, so there is no need for the staff to manually open the manhole cover body 3 to drain water.

[0040] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A manhole cover assembly, characterized in that: It comprises a frame (1) installed in a road pit, a plurality of water inlet grooves (5) are arranged in an array on one side of the frame (1), an L-shaped groove (11) is arranged on the side of the frame (1), and turbine blades (6) are rotatably arranged inside the plurality of water inlet grooves (5); A reducer (7) for driving the turbine blades (6) is fixedly arranged inside the water inlet trough (5), and the reducer (7) drives the connecting rod (9) to rotate via a cross universal joint (8). A connecting shaft (14) for transmission with the connecting rod (9) is movably penetrated through the main water inlet (12) in the middle of the frame (1) on the side away from the water inlet trough (5).

2. The manhole cover assembly according to claim 1, characterized in that: A transmission shaft (15) is movably inserted into the interior of a plurality of the water inlet grooves (5), and the transmission shaft (15) passes through and is fixed in the middle of a plurality of the turbine blades (6), and one end of the transmission shaft (15) extends into the L-shaped groove (11) and is fixed to the output shaft of the reducer (7).

3. The manhole cover assembly according to claim 2, characterized in that: A fixing seat (10) for the connecting rod (9) to movably penetrate is fixedly provided on a side of the inner cavity of the L-shaped groove (11) away from the reducer (7).

4. The manhole cover assembly according to claim 3, characterized in that: The connecting rod (9) and the connecting shaft (14) are both fixedly provided with a helical gear (13) at the ends facing each other, and the two helical gears (13) are meshed with each other.

5. The manhole cover assembly according to claim 1, characterized in that: An L-shaped water blocking plate (4) is fixedly provided on one side of the upper groove of each of the plurality of water inlet grooves (5), one end of the L-shaped water blocking plate (4) is located in the middle of the water inlet groove (5) and the lower end extends to the top of the turbine blade (6) with a gap left.

6. The manhole cover assembly according to claim 1, characterized in that: An L-shaped cover (2) is inserted and fixed at the upper opening of the L-shaped groove (11).

7. A manhole cover, applied to the manhole cover assembly according to any one of claims 1 to 6, characterized in that: It comprises a manhole cover body (3) with one end rotatably arranged on a side of a main water inlet (12) away from the reducer (7); the connecting shaft (14) penetrates and fixes one side of the manhole cover body (3) and movably intersects with the side wall of the frame (1); and a limiting plate (16) is fixedly provided on the inner wall of the frame (1) for limiting the position of the manhole cover body (3).

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