Wheel type lever well lid opening device

Abstract

The utility model particularly relates to a wheel type lever well lid opening device which comprises an inclined handle rod and a horizontal opening rod, a handle is arranged at the upper end of the handle rod, and the wheel type lever well lid opening device is characterized in that an idler wheel is arranged below the rear portion of the opening rod, the front end of the opening rod is forked and provided with a pin shaft, a pin shaft hole is formed in a rotating block, and the rotating block is hinged to the pin shaft. A vertical threaded hole is formed in the rotating block, the screw rod penetrates through the threaded hole, an opening hook is arranged at the lower end of the threaded rod, and a fastening nut is arranged on the screw rod above the rotating block in a sleeving manner. The device has the advantages of being reasonable in structure, flexible and convenient to use, high in working efficiency and wide in application range.

Description

Technical Field

[0001] The utility model specifically relates to a wheel-type lever manhole cover opening device. Background Art

[0002] With the development of urbanization in my country, there are more and more manholes in cities. The manhole covers on the manholes are generally provided with opening holes. When opening the manhole cover, an opening hook is used to insert the opening hole to open the manhole cover. The opening hook of the existing technology has a simple structure, which is a straight stick with a hook body at the front end. When the manhole cover is opened, it needs to be pulled upward with force, which is laborious and inconvenient to use. For this reason, the applicant applied for a manhole cover opening crowbar on October 11, 2017, with announcement number CN207483303U and authorization date June 12, 2018. The stick body consists of an inclined handle and a horizontal opening rod, the bottom of the handle is connected to the rear end of the opening rod, an opening hook is provided at the front bottom of the opening rod, and a vertical upward hook body connecting rod is provided at the upper end of the opening hook. The opening rod is provided with a connecting rod hole, the hook body connecting rod passes through the connecting rod hole, and the upper end is connected to the hook body rotating handle.

[0003] The above manhole cover opening crowbar can open the manhole cover quickly and labor-savingly by utilizing the lever principle, which greatly reduces the labor burden and improves work efficiency. However, it still has the following defects in use:

[0004] 1) It can only pry up the manhole cover, and manpower is still required to remove the manhole cover from the wellhead;

[0005] 2) The distance between the opening hook and the opening rod cannot be adjusted. Once the manhole cover is too thick, it cannot be used. Utility Model Content

[0006] The purpose of the utility model is to provide a wheel-type lever manhole cover opening device, which can not only open the manhole cover, but also move the manhole cover away from the wellhead conveniently and labor-savingly. The distance between the opening hook and the opening rod is adjustable, and can be suitable for manhole covers of different thicknesses.

[0007] The utility model is realized through the following technical solutions:

[0008] That is, a wheel-type lever manhole cover opening device, including an inclined handle rod and a horizontal opening rod, a handle is provided at the upper end of the handle rod, and is characterized in that a roller is provided at the lower rear part of the opening rod, the front end of the opening rod is forked, and a pin is installed, a pin hole is provided on the rotating block, the rotating block is hinged on the pin, a vertical threaded hole is provided on the rotating block, a screw passes through the threaded hole, an opening hook is provided at the lower end of the threaded rod, and a fastening nut is provided on the screw above the rotating block.

[0009] The utility model has the same principle as CN207483303U, both of which use the lever principle to open the manhole cover. The difference from CN207483303U is that a roller is provided below the rear of the opening lever. After the manhole cover is pried up, the roller can be used to move the manhole cover away from the wellhead.

[0010] The opening lever of the utility model can be arranged horizontally or tilted with its front end tilted upward. When the front end is tilted upward, the manhole cover is pried up and the height of the manhole cover from the ground is greater.

[0011] The opening hook of the utility model is hinged to the front end of the opening rod through a rotating block. By rotating the threaded rod, the direction of the opening hook and the distance between the opening hook and the opening rod can be adjusted, which is convenient to use.

[0012] Furthermore, behind the opening hook of the utility model, an inclined support rod is provided at the bottom of the opening rod. The upper end of the support rod is connected to the bottom of the opening rod, and the lower end is connected to the vertical rod. The upper end of the vertical rod is connected to the bottom of the opening rod to form a stable triangular frame structure.

[0013] When the manhole cover is removed, the rear end of the manhole cover is supported on the inclined support rod, which helps to prevent the front end of the manhole cover from dragging on the ground and causing excessive resistance when the manhole cover is moved.

[0014] Furthermore, an inclined reinforcing rib is provided between the handle and the opening rod of the present invention to form a stable triangular frame structure.

[0015] When the utility model is in use, the handle and the opening rod are connected by welding. This is where the force is concentrated and is easily damaged after long-term use. Adding a reinforcing rib rod can effectively solve the above problem.

[0016] Furthermore, a gasket is provided between the fastening nut and the rotating block of the utility model.

[0017] The fastening nut plus the gasket of the utility model has the functions of increasing the fastening force, dispersing the pressure and preventing loosening.

[0018] Furthermore, a base plate is provided below the rear portion of the opening lever of the present invention, and two rollers are symmetrically mounted on the left and right sides of the lower portion of the base plate.

[0019] The width of the base plate of the present invention should not be too large, which is convenient for transportation and storage of the present invention. It is preferred to use two rollers. When the manhole cover is tilted, the entire state is stable and will not tilt, and the two rollers can share the pressure when the manhole cover is tilted.

[0020] Furthermore, a screw handle is provided at the upper end of the screw of the utility model.

[0021] The handle makes it easier to turn the screw and adjust the direction of the opening hook and the distance between the opening hook and the opening rod.

[0022] The utility model has the advantages of reasonable structure, flexible and convenient use, high working efficiency and wide application range. With the utility model, the manhole cover can be opened and removed from the wellhead quickly and labor-savingly by utilizing the lever principle, which greatly reduces the labor burden and improves work efficiency. By turning the screw to adjust the distance between the opening hook and the opening rod, it can be used with manhole covers of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when the manhole cover is opened.

[0025] As shown in the figure: 1. Handle; 2. Handle rod; 3. Reinforcement rib; 4. Screw; 5. Fastening nut; 6. Rotating block; 7. Pin; 8. Opening hook; 9. Support rod; 10. Base; 11. Roller; 12. Opening rod; 13. Manhole cover. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention. It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0027] like Figure 1 The cam 12 is provided with a plurality of support rods 11 and a plurality of support rods 12 connected to each other, and the support rods 11 are provided with a plurality of support rods 11 and a plurality of support rods 12 connected to each other.

[0028] When the utility model is used, the method of prying up the manhole cover 13 is the same as that of CN207483303U. After the manhole cover 13 is pried up, the roller 11 is used to remove the manhole cover 13 from the wellhead. Figure 2As shown, the rear end of the manhole cover 13 is supported on the inclined support rod 9, so that when the manhole cover 13 is moved, the front end of the manhole cover 13 will not tilt downward to cause dragging on the ground.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A wheel-type lever manhole cover opening device, comprising an inclined handle rod and a horizontal opening rod, wherein a handle is provided at the upper end of the handle rod, characterized in that A roller is provided at the lower rear part of the opening rod, the front end of the opening rod is forked and a pin is installed, a pin hole is provided on the rotating block, the rotating block is hinged on the pin, a vertical threaded hole is provided on the rotating block, the screw passes through the threaded hole, an opening hook is provided at the lower end of the threaded rod, and a fastening nut is set on the screw above the rotating block.

2. A wheel-type lever manhole cover opening device according to claim 1, characterized in that Behind the opening hook, an inclined support rod is provided at the bottom of the opening rod. The upper end of the support rod is connected to the bottom of the opening rod, and the lower end is connected to the vertical rod. The upper end of the vertical rod is connected to the bottom of the opening rod to form a stable triangular frame structure.

3. A wheel-type lever manhole cover opening device according to claim 1, characterized in that An inclined reinforcing rib is provided between the handle and the opening lever to form a stable triangular frame structure.

4. A wheel-type lever manhole cover opening device according to claim 1, characterized in that A gasket is provided between the fastening nut and the rotating block.

5. A wheel-type lever manhole cover opening device according to claim 1, characterized in that A base plate is provided below the rear portion of the opening lever, and two rollers are symmetrically arranged on the left and right sides of the lower portion of the base plate.

6. A wheel-type lever manhole cover opening device according to claim 1, characterized in that The upper end of the screw is provided with a screw handle.

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