Well lid opening equipment convenient to operate

Abstract

The utility model discloses well lid opening equipment convenient to operate, which comprises a movable frame, a lifting component is arranged on the top side of the movable frame, a connecting plate is arranged below the movable frame, a plurality of springs are fixedly mounted on the bottom side of the connecting plate, and the other ends of the springs are fixedly connected with the same bottom plate. The bottom side of the bottom plate is fixedly connected with a buffer pad, the bottom side of the connecting plate is fixedly provided with a telescopic rod, rapid positioning is achieved through the movable frame, the pulley and the handle, after the hook is hung to a well lid, the electric push rod drives the connecting plate to move downwards, the buffer pad is attached to the well lid, and during lifting, the air cylinder drives the top plate to move upwards, and the connecting rod and the rope pull up the well lid; in the upward moving process of the well lid, a buffer cushion limits shaking of the well lid, a spring absorbs rising impact force, a telescopic rod assists in keeping the bottom plate stable and avoids rigid collision, a limiting cylinder can effectively prevent the rope from shaking, it is ensured that the lifting process is stable, the risk that the well lid is separated from the hook is reduced, and operation safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of manhole cover opening equipment, and in particular to a manhole cover opening device that is easy to operate. Background Technology

[0002] In the daily maintenance of urban infrastructure, opening manhole covers is an important step in ensuring the normal operation of underground pipe networks.

[0003] Traditional manhole cover opening devices mostly use a simple hook-and-pull structure, which pulls the manhole cover from the manhole opening manually or mechanically. However, this method has obvious technical defects. First, there is a lack of buffer protection during the lifting process. When the manhole cover is pulled up quickly, it is prone to violent shaking due to inertia. This may not only cause the manhole cover to detach from the hook, resulting in a risk of falling, but also pose a safety threat to the operator. Second, rigid lifting is prone to collision between the manhole cover and the manhole opening, causing damage to the edge of the manhole cover and the structure of the manhole opening, thus shortening the service life of the facility. Therefore, an easy-to-operate manhole cover opening device is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an easy-to-operate manhole cover opening device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An easy-to-operate manhole cover opening device includes a movable frame, a lifting assembly on the top side of the movable frame, a connecting plate below the movable frame, multiple springs fixedly installed on the bottom side of the connecting plate, the other ends of the multiple springs fixedly connected to the same base plate, a buffer pad fixedly connected to the bottom side of the base plate, a telescopic rod fixedly installed on the bottom side of the connecting plate, the other end of the telescopic rod fixedly connected to the top side of the base plate, and an adjustment assembly below the movable frame.

[0007] Preferably, the lifting assembly includes a fixed frame fixedly installed on the top side of the movable frame. The fixed frame is U-shaped, and a cylinder is fixedly installed on the bottom inner wall of the fixed frame. The output end of the cylinder passes through the fixed frame and is fixedly connected to the top plate.

[0008] Preferably, two connecting rods are fixedly installed on the bottom side of the top plate, and ropes are fixedly connected to the bottom ends of the two connecting rods, and hooks are fixedly connected to the other ends of the two ropes.

[0009] Preferably, the movable frame has two circular holes, and a limiting cylinder is fixedly installed in each of the two circular holes. A portion of the two ropes is located in the two limiting cylinders respectively.

[0010] Preferably, the adjustment assembly includes a connecting frame fixedly installed on the bottom side of the movable frame, an electric push rod fixedly installed on the inner wall of the top side of the connecting frame, and the output end of the electric push rod passing through the connecting frame and fixedly connected to the top side of the connecting plate.

[0011] Preferably, a handle is fixedly installed on one side of the mobile frame. The handle is U-shaped, and a controller is provided on the other side of the mobile frame. The controller is electrically connected to the cylinder and the electric push rod.

[0012] Preferably, one side of the movable frame is provided with two sets of pulleys, with each set containing two pulleys.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This easy-to-operate manhole cover opening device achieves rapid positioning through a movable frame, pulleys, and handle. After the hook is attached to the manhole cover, the electric push rod drives the connecting plate to move down, so that the buffer pad fits against the manhole cover. When lifting, the cylinder drives the top plate to move up, and the connecting rod and rope pull up the manhole cover. During the upward movement of the manhole cover, the buffer pad restricts the shaking of the manhole cover, the spring absorbs the upward impact force, the telescopic rod helps to keep the bottom plate stable and avoid rigid collisions, and the limiting cylinder can effectively prevent the rope from shaking, ensuring a smooth lifting process, reducing the risk of the manhole cover detaching from the hook, and ensuring operational safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 The structure of this utility model Figure 2 Partial schematic diagram of section A;

[0017] Figure 4 This is a schematic diagram of the structural rope component of this utility model.

[0018] In the diagram: 1. Movable frame; 2. Pulley; 3. Fixed frame; 4. Cylinder; 5. Top plate; 6. Connecting rod; 7. Rope; 8. Hook; 9. Limiting cylinder; 10. Connecting frame; 11. Electric push rod; 12. Connecting plate; 13. Spring; 14. Base plate; 15. Buffer pad; 16. Telescopic rod; 17. Handle; 18. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1-4 A manhole cover opening device that is easy to operate includes a movable frame 1. A lifting assembly is provided on the top side of the movable frame 1. A connecting plate 12 is provided below the movable frame 1. Multiple springs 13 are fixedly installed on the bottom side of the connecting plate 12. The other ends of the multiple springs 13 are fixedly connected to the same base plate 14. A buffer pad 15 is fixedly connected to the bottom side of the base plate 14. A telescopic rod 16 is fixedly installed on the bottom side of the connecting plate 12. The other end of the telescopic rod 16 is fixedly connected to the top side of the base plate 14. An adjusting assembly is provided below the movable frame 1. The adjusting assembly includes a connecting frame 10 fixedly installed on the bottom side of the movable frame 1. An electric push rod 11 is fixedly installed on the inner wall of the top side of the connecting frame 10. The output end of the electric push rod 11 passes through the connecting frame 10 and is fixedly connected to the top side of the connecting plate 12. When both hooks 8 are attached to the manhole cover, the electric push rod 11 is activated to move the connecting plate 12 downward. When the buffer pad 15 fixedly connected to the bottom side of the base plate 14 is in contact with the manhole cover, the electric push rod 11 stops running. Then, the manhole cover can be pulled up by the lifting component. During the process of the manhole cover leaving the manhole, the buffer pad 15 is in a close contact state, so it can prevent the manhole cover from shaking due to rapid rise. During the upward movement of the manhole cover, pressure is applied to the base plate 14. At this time, the multiple springs 13 fixedly connected to the top side of the base plate 14 will contract. The multiple springs 13 can also play a buffering role, so that the manhole cover can move upward smoothly. After the manhole cover leaves the manhole, the personnel can push the moving frame 1 to one side to remove the manhole cover, and then the next manhole cover can be opened.

[0021] Specifically, the lifting assembly includes a fixed frame 3 fixedly installed on the top side of the movable frame 1. The fixed frame 3 is U-shaped. A cylinder 4 is fixedly installed on the bottom inner wall of the fixed frame 3. The output end of the cylinder 4 passes through the fixed frame 3 and is fixedly connected to a top plate 5. Two connecting rods 6 are fixedly installed on the bottom side of the top plate 5. Ropes 7 are fixedly connected to the bottom ends of the two connecting rods 6. Hooks 8 are fixedly connected to the other ends of the two ropes 7. By setting up the cylinder 4, when the manhole cover is hooked on both hooks 8, the cylinder 4 is started to drive the top plate 5 to move upward, thereby causing the two connecting rods 6 fixedly connected to the bottom side of the top plate 5 to pull the two ropes 7 to move upward synchronously. At this time, because the manhole cover is in the state of being hooked on by the hooks 8, the manhole cover will also move upward synchronously, thereby realizing the opening of the manhole cover.

[0022] Specifically, the mobile frame 1 has two circular holes, and a limiting cylinder 9 is fixedly installed in each of the two circular holes. A portion of the two ropes 7 is located in the two limiting cylinders 9 respectively. By setting two limiting cylinders 9, the two limiting cylinders 9 can prevent the two ropes 7 from swaying during synchronous upward movement.

[0023] Specifically, a handle 17 is fixedly installed on one side of the mobile frame 1. The handle 17 is U-shaped. A controller 18 is set on the other side of the mobile frame 1. The controller 18 is electrically connected to the cylinder 4 and the electric push rod 11. Two sets of pulleys 2 are set on one side of the mobile frame 1. Each set of pulleys 2 has two pulleys. By holding the handle 17, the mobile frame 1 can be pushed to the designated position by sliding the two sets of pulleys 2. By setting the controller 18, the extension and retraction of the cylinder 4 and the electric push rod 11 can be precisely controlled, thereby adjusting the rising position of the top plate 5 and the lowering position of the bottom plate 14 according to the actual situation.

[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0025] In use: Push handle 17, and with the sliding assistance of two sets of pulleys 2, the moving frame 1 can be quickly moved to the designated manhole cover position. After hooking the two hooks 8 onto the manhole cover, start the electric push rod 11, which drives the connecting plate 12 to move downward. When the buffer pad 15 fixedly connected to the bottom of the base plate 14 is completely in contact with the surface of the manhole cover, the electric push rod 11 stops running. Then, start the cylinder 4, which pushes the top plate 5 upward. The two connecting rods 6 fixed at the bottom of the top plate 5 pull the rope 7 to rise synchronously. Since the hooks 8 are firmly hooked onto the manhole cover, the manhole cover moves upward accordingly. During the process of the cover detaching from the well opening, the buffer pad 15, which remains in close contact, effectively limits its swaying. At the same time, the pressure generated by the rising cover acts on the base plate 14, causing multiple springs 13 fixed on the top of the base plate 14 to contract synchronously. The elastic deformation of the springs 13 further absorbs the impact force, ensuring that the cover rises smoothly. Once the cover is completely detached from the well opening, the operator can push the moving frame 1 to the side to safely remove the cover. After the cover is removed, the springs 13 automatically drive the base plate 14 to reset due to their own elasticity, and the equipment returns to its initial state, ready to be used for opening the next cover quickly.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for easy operation of opening a manhole cover, comprising a mobile frame (1), characterized in that, The top side of the mobile frame (1) is provided with a lifting assembly, and the bottom of the mobile frame (1) is provided with a connecting plate (12). Multiple springs (13) are fixedly installed on the bottom side of the connecting plate (12). The other end of the multiple springs (13) is fixedly connected to the same base plate (14). The bottom side of the base plate (14) is fixedly connected with a buffer pad (15). The bottom side of the connecting plate (12) is fixedly installed with a telescopic rod (16). The other end of the telescopic rod (16) is fixedly connected to the top side of the base plate (14). The bottom of the mobile frame (1) is provided with an adjustment assembly.

2. A device for facilitating the operation of a manhole cover according to claim 1, characterized in that The lifting assembly includes a fixed frame (3) fixedly installed on the top side of the movable frame (1). The fixed frame (3) is U-shaped. A cylinder (4) is fixedly installed on the bottom inner wall of the fixed frame (3). The output end of the cylinder (4) passes through the fixed frame (3) and is fixedly connected to the top plate (5).

3. A device for facilitating the operation of a manhole cover according to claim 2, wherein, Two connecting rods (6) are fixedly installed on the bottom side of the top plate (5). The bottom ends of the two connecting rods (6) are fixedly connected to ropes (7), and the other ends of the two ropes (7) are fixedly connected to hooks (8).

4. A manhole cover opening apparatus according to claim 3, wherein The mobile frame (1) has two round holes, and a limiting cylinder (9) is fixedly installed in each of the two round holes. A portion of the two ropes (7) is located in the two limiting cylinders (9).

5. A device for facilitating the operation of a manhole cover according to claim 1, wherein, The adjustment assembly includes a connecting frame (10) fixedly installed on the bottom side of the movable frame (1), and an electric push rod (11) fixedly installed on the inner wall of the top side of the connecting frame (10). The output end of the electric push rod (11) passes through the connecting frame (10) and is fixedly connected to the top side of the connecting plate (12).

6. A device for facilitating the operation of a manhole cover according to claim 1, wherein, A handle (17) is fixedly installed on one side of the mobile frame (1). The handle (17) is U-shaped. A controller (18) is provided on the other side of the mobile frame (1). The controller (18) is electrically connected to the cylinder (4) and the electric push rod (11).

7. A device for facilitating the operation of a manhole cover according to claim 1, wherein, The movable frame (1) is provided with two sets of pulleys (2) on one side, with two pulleys in each set.

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