Opening and closing equipment suitable for outdoor well lid

Abstract

The utility model relates to an opening and closing device suitable for an outdoor well lid. The opening and closing device comprises a first pinch bar, a sleeve, a supporting rod, a sliding sleeve, a connecting rod and a second pinch bar. The sleeve is rotationally connected to the outer side of the first pry bar, the supporting rod is hinged to the outer side of the sleeve through a hinge shaft, the sliding sleeve is movably arranged on the outer side of the supporting rod in a sleeving mode, the connecting rod is hinged to the sliding sleeve through a hinge shaft, and the second pry bar is rotationally connected to the bottom end of the connecting rod; the bottom end of the first pry bar and the bottom end of the second pry bar are each transversely provided with a transverse rod, the two transverse rods are located on the same transverse line, and a handle is installed at the top end of the first pry bar. According to the opening and closing equipment suitable for the outdoor well lid, through the adjustable lever structure and the double-fulcrum supporting design, labor-saving, efficient, universal and portable opening and closing of the well lid are achieved, the problems that a traditional tool needs to carry various devices, operation is strenuous, and slipping is likely to happen are solved, and the municipal maintenance efficiency and safety are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover opening and closing technology, specifically to an opening and closing device suitable for outdoor manhole covers. Background Technology

[0002] During routine inspections, maintenance personnel for municipal drainage pipelines frequently face the task of opening various manhole covers to observe the water flow inside.

[0003] However, there are many types of manhole covers, and there is a lack of standardized tools for opening them. In addition, some manhole covers are located under the roadway and are subject to the long-term effects of vehicle traffic, foreign object blockage, and corrosion of the manhole ring, making the opening process extremely difficult. This often requires maintenance personnel to exert a great deal of physical effort, thus placing a considerable physical burden on their work. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an opening and closing device suitable for outdoor manhole covers, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an opening and closing device suitable for outdoor manhole covers, comprising a first pry bar, a sleeve, a support rod, a sliding sleeve, a connecting rod, and a second pry bar;

[0006] The sleeve is rotatably connected to the outside of the first pry bar, the support rod is hinged to the outside of the sleeve via a hinge shaft, the sliding sleeve is movably sleeved on the outside of the support rod, the connecting rod is hinged to the sliding sleeve via a hinge shaft, and the second pry bar is rotatably connected to the bottom end of the connecting rod.

[0007] A horizontal bar is installed at the bottom end of both the first pry bar and the second pry bar.

[0008] Furthermore, the two crossbars are located on the same transverse line.

[0009] Furthermore, a handle is installed at the top of the first pry bar.

[0010] Furthermore, the length of the first pry bar is greater than the length of the second pry bar.

[0011] Furthermore, corresponding to the second pry bar, an elastic buckle is installed on the outside of the support rod.

[0012] Furthermore, the elastic buckle is C-shaped.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The opening and closing device suitable for the outdoor well lid realizes labor-saving and efficient opening and closing of the well lid, is universal and portable, solves problems of needing to carry multiple devices, laboring operation and easy slipping of the traditional tool, and significantly improves municipal maintenance efficiency and safety. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic diagram of unfolding of the utility model;

[0016] Figure 2 is a structure schematic diagram of merging of the utility model;

[0017] Figure 3 is a structure schematic diagram of prying of the utility model well lid;

[0018] Figure 4 is a structure schematic diagram of lifting of the utility model well lid.

[0019] In the figure: 1, first pry bar; 2, sleeve; 3, support rod; 4, sliding sleeve; 5, connecting rod; 6, second pry bar; 7, crossbar; 8, elastic buckle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4 The opening and closing device suitable for the outdoor well lid in the embodiment increases the convenience of opening the well lid.

[0022] Specifically, the opening and closing device suitable for the outdoor well lid comprises a first pry bar 1, a sleeve 2, a support rod 3, a sliding sleeve 4, a connecting rod 5 and a second pry bar 6. The sleeve 2 is rotationally connected to the outside of the first pry bar 1, a handle is installed at the top end of the first pry bar 1, the support rod 3 is hingedly connected to the outside of the sleeve 2 through a hinge shaft, the sliding sleeve 4 is movably sleeved on the outside of the support rod 3, the connecting rod 5 is hingedly connected with the sliding sleeve 4 through a hinge shaft, and the second pry bar 6 is rotationally connected to the bottom end of the connecting rod 5. A crossbar 7 is transversely installed at the bottom end of the first pry bar 1 and the second pry bar 6.

[0023] When opening the well lid at one side, for example, Figure 3As shown, first, the first crowbar 1 is inserted into the opening hole on the manhole cover, then the first crowbar 1 is rotated so that the crossbar 7 at the bottom end of the second crowbar 6 is in a cross state with the opening hole, then one end of the supporting rod 3 is in contact with the ground, by pressing the top end of the first crowbar 1, the side of the manhole cover is lifted, at this time, the supporting rod 3 acts as a reaction force fulcrum, and the crossbar 7 of the first crowbar 1 forms a lever system, the operator only needs to press the handle at the top end of the first crowbar 1 downward, and the manhole cover can be easily lifted by the lever principle.

[0024] In addition, by movably arranging the sliding sleeve 4 outside the supporting rod 3, the distance between the first crowbar 1 and the second crowbar 6 can be adjusted, so that it is suitable for manhole covers of different sizes.

[0025] It should be noted that the length of the first crowbar 1 is greater than the length of the second crowbar 6, and the force arm is longer, so that the force applied by the operator can be amplified several times.

[0026] Please refer to Figure 4 In order to easily lift the manhole cover, the two crossbars 7 in the embodiment are located on the same horizontal line, in actual use, the bottom end of the first crowbar 1 and the second crowbar 6 are inserted into the inside of the two opening holes, at this time, the first crowbar 1 and the second crowbar 6 are in a parallel state, and the first crowbar 1 and the second crowbar 6 are perpendicular to the supporting rod 3, by rotating the first crowbar 1 and the second crowbar 6, the crossbar 7 at the bottom end of the first crowbar 1 and the second crowbar 6 is respectively in a cross state with the two opening holes, then two people on the supporting rod 3 can lift the manhole cover out of the inside of the sewer opening.

[0027] Further, in order to facilitate the fixation of the second crowbar 6, a resilient buckle 8 is installed on the outside of the supporting rod 3 corresponding to the second crowbar 6, and the shape of the resilient buckle 8 is C-shaped.

[0028] In actual use, when only one side of the manhole cover needs to be pried, the second crowbar 6 is embedded in the inside of the resilient buckle 8, and the second crowbar 6 is fixed by the resilient buckle 8.

[0029] It is worth noting that the material selection of the opening and closing device is also quite exquisite, all key components are made of high-strength, corrosion-resistant materials, to ensure that it can still maintain good mechanical properties and durability in outdoor harsh environments.

[0030] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0031] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. An opening and closing device for an outdoor manhole cover, characterized by: The utility model relates to a lever set, which comprises a first lever (1), a sleeve (2), a support rod (3), a sliding sleeve (4), a connecting rod (5) and a second lever (6). The sleeve (2) is rotatably connected to the outside of the first lever (1), the support rod (3) is hingedly connected to the outside of the sleeve (2) through a hinge shaft, the sliding sleeve (4) is movably sleeved on the outside of the support rod (3), the connecting rod (5) is hingedly connected to the sliding sleeve (4) through a hinge shaft, and the second lever (6) is rotatably connected to the bottom end of the connecting rod (5). A cross rod (7) is horizontally arranged on the first lever (1) and the bottom end of the second lever (6).

2. The opening and closing device for outdoor manhole cover according to claim 1, characterized in that: The two cross rods (7) are located on the same horizontal line.

3. The opening and closing device for outdoor manhole cover according to claim 1, characterized in that: A handle is arranged on the top end of the first lever (1).

4. The opening and closing device for outdoor manhole cover according to claim 1, characterized in that: The length of the first lever (1) is greater than that of the second lever (6).

5. The opening and closing device for outdoor manhole cover according to claim 1, characterized in that: An elastic buckle (8) is arranged on the outside of the support rod (3) corresponding to the second lever (6).

6. The opening and closing device for outdoor manhole covers according to claim 5, characterized in that: The elastic buckle (8) is in the shape of a C.

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