Lever balance weight assisting type object hanging hole cover plate

Abstract

The utility model discloses a lever counter weight boosting type object hanging hole cover plate, and particularly relates to the field of object hanging hole cover plates, which comprises an equipment shell, an object hanging hole is formed in the middle of the equipment shell in a penetrating manner, a cover plate I and a cover plate II are symmetrically arranged at the object hanging hole, a connecting shaft is arranged on the cover plate II, one side of the cover plate I is fixedly arranged on the connecting shaft, and the other side of the cover plate II is fixedly arranged on the connecting shaft. A motor is mounted at one end of the connecting shaft; a warping plate is fixedly arranged on the bottom face of the second cover plate, and an electric push rod is hinged to one end of the warping plate. When one end of the warped plate moves downwards and the other end of the warped plate rises upwards, the first cover plate and the second cover plate are jacked up, after the first cover plate and the second cover plate rotate by a certain angle, the motor works to drive the connecting shaft to rotate, the connecting shaft drives the first cover plate to continue to rotate again, and therefore an object lifting hole is exposed to facilitate operation; the motor drives the connecting shaft to rotate so that the first cover plate can return to the original position, and then the first cover plate and the second cover plate can return to the original position through the electric push rod.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting hole cover plates, specifically a lever-weighted lifting hole cover plate. Background Technology

[0002] A hoisting manhole cover is a cover installed on the top, bottom, or side of a building or equipment to cover hoisting holes, inspection ports, and other openings. It is typically made of steel plate or other sturdy materials, and its main function is to prevent people from falling, objects from falling, and external debris from entering, thereby ensuring a safe working environment, maintaining the normal operation of equipment, and improving production efficiency.

[0003] When it is necessary to lift objects or raise the gate, the cover plate on the lifting hole should be opened and closed after the operation is completed. Since the lifting hole is large in size, the cover plate usually opens and closes from left to right. The traditional cover plate is connected to the outer frame around the lifting hole by a hinge. The lack of a power assist mechanism when opening and closing makes it inconvenient.

[0004] Therefore, we have made improvements to this by proposing a lever-counterweight assisted lifting hole cover. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a lever-assisted weight-based lifting hole cover, comprising a device housing, a lifting hole being formed through the middle of the device housing, and a cover plate one and a cover plate two symmetrically arranged at the lifting hole. A connecting shaft is rotatably mounted on the cover plate two, and one side of the cover plate one is fixedly mounted on the connecting shaft, with a motor fixedly mounted on one end of the connecting shaft. A rocker plate is fixedly mounted on the bottom surface of the cover plate two, and a support rod is provided in the middle of the rocker plate, with the bottom end of the support rod fixed to the inner bottom surface of the device. An electric push rod is hinged to one end of the rocker plate. Mounting frames are respectively installed on the device housing at both ends of the lifting hole, and the fixed end of the electric push rod is hinged to the mounting frame.

[0007] As a preferred embodiment of this utility model, the fixed end of the motor is disposed on the cover plate two, and the motor is a forward and reverse reversible motor.

[0008] As a preferred embodiment of this utility model, a U-shaped frame is fixedly provided on the top surface of the support rod, the rocker is placed on the U-shaped frame, and the bottom end of the rocker is at a distance from the inner bottom surface of the U-shaped frame.

[0009] As a preferred embodiment of this utility model, the U-shaped frame and the rocker plate are respectively provided with through holes, and a connecting rod is provided at the through hole. The two ends of the connecting rod are fixed by connectors. The diameter of the connector is larger than the diameter of the through hole, and the diameter of the connecting rod is smaller than the diameter of the through hole.

[0010] As a preferred embodiment of this utility model, a fixing plate is fixedly provided at one end of the rocker, and the fixing plate is fixed to the cover plate one, and there is a distance between the top surface of the fixing plate and the bottom surface of the cover plate two.

[0011] As a preferred technical solution of this utility model, a placement frame is fixedly provided at the other end of the rocker, one end of the placement frame is open, a counterweight is placed inside the placement frame, and a sealing plate is detachably installed at the open end.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, an electric push rod pushes a rocker to move, causing one end of the rocker to move down and the other end to rise, thereby lifting cover plate one and cover plate two. After cover plate one and cover plate two have rotated to a certain angle, a motor can drive a connecting shaft to rotate, which in turn drives cover plate one to continue rotating, thus exposing the lifting hole for easy operation. After the operation is completed, the motor first drives the connecting shaft to rotate, causing cover plate one to return to its original position, and then the electric push rod is used to return cover plate one and cover plate two to their original positions. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of a lever-counterweight-assisted lifting hole cover plate of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of a lever-counterweight-assisted lifting hole cover plate of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of a lever-counterweight-assisted lifting hole cover plate of this utility model. Figure 3 .

[0018] In the diagram: 1. Equipment housing; 2. Lifting hole; 3. Cover plate one; 4. Cover plate two; 5. Mounting frame; 6. Support rod; 7. Electric push rod; 8. Rocker; 9. Placement frame; 10. Fixing plate; 11. Connecting plate; 12. Motor; 13. Connecting shaft; 14. Counterweight. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: Figures 1 to 3 As shown, this utility model discloses a lever-counterweight assisted lifting hole cover, including a housing 1. A lifting hole 2 is provided through the middle of the housing 1, and a cover plate 3 and a cover plate 4 are symmetrically arranged at the lifting hole 2. A connecting shaft 13 is rotatably mounted on the cover plate 4. One side of the cover plate 3 is fixedly mounted on the connecting shaft 13, and a motor 12 is fixedly mounted on one end of the connecting shaft 13. The operation of the motor 12 can drive the connecting shaft 13 to rotate, which in turn drives the cover plate 3 to rotate, thereby adjusting the opening and closing degree of the cover plate 3, facilitating related operations at the lifting hole 2. The size of the cover plate 3 is larger than that of the cover plate 4, so that the exposed area of ​​the lifting hole 2 is larger.

[0021] A rocker arm 8 is fixedly installed on the bottom surface of cover plate 2 4. A support rod 6 is installed in the middle of rocker arm 8, and the bottom end of the support rod 6 is fixed to the bottom surface of the equipment. An electric push rod 7 is hinged to one end of rocker arm 8. When the electric push rod 7 pushes one end of rocker arm 8 downward, the end of rocker arm 8 connected to cover plate 2 4 rises, thereby driving cover plate 2 4 upward. Cover plate 2 4 is hinged to connecting shaft 13 using existing technology. When the surfaces of cover plate 1 3 and cover plate 2 4 are flush and cover the lifting hole 2, connecting shaft 13 can only drive cover plate 1 3 to rotate upward under the action of motor 12. Therefore, when rocker arm 8 drives cover plate 2 4 upward, cover plate 2 4 will drive cover plate 1 3 upward together.

[0022] Mounting frames 5 are installed on the equipment housing 1 at both ends of the lifting hole 2. The fixed end of the electric push rod 7 is hinged to the mounting frame 5. The extension and retraction of the electric push rod 7 drives one end of the rocker plate 8 to move down or up, thereby realizing the opening and closing of the first cover plate 3 and the second cover plate 4.

[0023] The fixed end of the motor 12 is set on the cover plate 4, and the motor 12 is a forward and reverse motor 12. The operation of the motor 12 can drive the connecting shaft 13 to rotate, and the connecting shaft 13 will drive the cover plate 3 to rotate.

[0024] A U-shaped frame is fixedly mounted on the top surface of the support rod 6. The rocker arm 8 is placed on the U-shaped frame, and there is a distance between the bottom end of the rocker arm 8 and the inner bottom surface of the U-shaped frame. Through holes are respectively opened in the U-shaped frame and the rocker arm 8, and connecting rods are installed at the through holes. The two ends of the connecting rods are fixed by connectors, the diameter of which is larger than the diameter of the through hole, and the diameter of the connecting rod is smaller than the diameter of the through hole. The support rod 6 supports the U-shaped frame, and the U-shaped frame supports the rocker arm 8. The arrangement of the U-shaped frame, connecting rod, and support rod 6 facilitates the rocker arm 8 to move in the opposite direction when one side is subjected to force.

[0025] A fixing plate 10 is fixedly installed at one end of the rocker 8, and the fixing plate 10 is fixed to the cover plate 3. The top surface of the fixing plate 10 is at a distance from the bottom surface of the cover plate 4. The fixing plate 10 increases the installation area, and the distance between the fixing plate 10 and the cover plate 4 facilitates the rotation of the cover plate 4 under the action of the motor 12 and the connecting shaft 13.

[0026] A placement frame 9 is fixedly installed at the other end of the rocker 8. One end of the placement frame 9 is open, and a counterweight 14 is placed inside the placement frame 9. A sealing plate is detachably installed at the open end. The counterweight 14 can play a balancing role. The sealing plate is detachably installed to the placement frame 9 by fastening bolts. The number of counterweights 14 in the placement frame 9 can be adjusted after the sealing plate is removed according to actual needs.

[0027] During operation, the electric push rod 7 pushes the rocker arm 8 to move, causing one end of the rocker arm 8 to move down and the other end to rise, thereby lifting cover plate 3 and cover plate 4. After cover plate 3 and cover plate 4 have rotated to a certain angle, the motor 12 drives the connecting shaft 13 to rotate, which in turn drives cover plate 3 to continue rotating, thus exposing the lifting hole 2 for easy operation. After the operation is completed, the motor 12 drives the connecting shaft 13 to rotate, allowing cover plate 3 to return to its original position. Then, the electric push rod 7 returns cover plate 3 and cover plate 4 to their original positions. The cooperation between the rocker arm 8 and the electric push rod 7 makes it easier to lift cover plate 3 and cover plate 4. Cover plate 4 can be further adjusted through the cooperation between the motor 12 and the connecting shaft 13.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lever-assisted lifting hole cover plate, comprising a device housing (1), wherein a lifting hole (2) is provided through the middle of the device housing (1), and a cover plate one (3) and a cover plate two (4) are symmetrically arranged at the lifting hole (2), characterized in that, A connecting shaft (13) is rotatably mounted on the second cover plate (4). One side of the first cover plate (3) is fixedly mounted on the connecting shaft (13), and a motor (12) is fixedly mounted on one end of the connecting shaft (13). A rocker plate (8) is fixedly mounted on the bottom surface of the second cover plate (4). A support rod (6) is provided in the middle of the rocker plate (8), and the bottom end of the support rod (6) is fixed to the bottom surface of the equipment. An electric push rod (7) is hinged to one end of the rocker plate (8). Mounting frames (5) are installed on the equipment housing (1) at both ends of the lifting hole (2). The fixed end of the electric push rod (7) is hinged to the mounting frame (5).

2. The lever-counterweight assisted lifting hole cover plate according to claim 1, characterized in that, The fixed end of the motor (12) is set on the cover plate two (4), and the motor (12) is a forward and reverse motor (12).

3. The lever-counterweight assisted lifting hole cover plate according to claim 1, characterized in that, The top surface of the support rod (6) is fixedly provided with a U-shaped frame, the rocker (8) is placed on the U-shaped frame, and the bottom end of the rocker (8) is at a distance from the inner bottom surface of the U-shaped frame.

4. The lever-counterweight assisted lifting hole cover plate according to claim 3, characterized in that, The U-shaped frame and the rocker (8) are respectively provided with through holes, and a connecting rod is provided at the through hole. The two ends of the connecting rod are fixed by a connector. The diameter of the connector is greater than the diameter of the through hole, and the diameter of the connecting rod is smaller than the diameter of the through hole.

5. The lever-counterweight assisted lifting hole cover plate according to claim 1, characterized in that, One end of the rocker (8) is fixedly provided with a fixing plate (10), and the fixing plate (10) is fixed to the cover plate (3), and there is a distance between the top surface of the fixing plate (10) and the bottom surface of the cover plate (4).

6. The lever-counterweight assisted lifting hole cover plate according to claim 1, characterized in that, The other end of the rocker (8) is fixedly provided with a placement frame (9), one end of the placement frame (9) is open, and a counterweight (14) is placed inside the placement frame (9), and a sealing plate is detachably installed at the open end.

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