Well lid opening auxiliary tool

Abstract

The utility model discloses an auxiliary tool for opening a well lid, which relates to the technical field of well lid opening tools and comprises a base, a handle, a hook and a connecting chain. The top of the base is connected with one end of the handle, the top of the hook is connected with one end of the connecting chain, and the other end of the connecting chain is connected with the middle of the handle. According to the auxiliary tool for opening the well lid, the well lid can be opened and closed at a time, and opening is fast and labor-saving. And the rigging is always connected with the well lid, so that safety accidents caused by sudden falling of the well lid are prevented, the efficiency is further improved, and the safety is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover opening tools, in particular to a manhole cover opening auxiliary tool. Background Art

[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round. They can be used in green belts, sidewalks, motorway lanes, docks, alleys, etc.

[0003] Some manhole covers are installed under the roadway. Affected by factors such as wheel crushing, foreign objects stuck, and manhole ring corrosion, they require a lot of force to open, which greatly consumes the physical strength of maintenance personnel and seriously affects work efficiency. In addition, a heavy-duty ductile iron manhole cover with a nominal diameter of 700mm weighs about 75kg each, and tools are needed to open the manhole cover.

[0004] For example, a patent with publication number CN220201372U discloses a portable cable manhole cover opening tool, including a hollow tube, a frame, wheels, a cover-lifting hook, and a connecting device. The hollow tube passes through the frame on the main body and can be moved and connected by a connecting device to form the main components of the cable manhole cover opening tool to achieve a fixing effect. The wheels are fixed to the wheel fixing holes of the frame by the connecting device, and the lifting end on the hollow tube is installed and fixed with the cover-lifting hook by the connecting device, thereby forming a movable and portable cable manhole cover opening tool.

[0005] The existing manhole cover opening tools are not convenient to transport and carry. Therefore, there is an urgent need for a manhole cover opening auxiliary tool with a simple structure, convenient transportation and carrying, and labor-saving operation. Summary of the invention

[0006] The utility model aims to provide a manhole cover opening auxiliary tool to solve the problems existing in the above-mentioned prior art. The handle can be disassembled for easy transportation and carrying.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a manhole cover opening auxiliary tool, comprising a base, a handle, a hook and a connecting chain; the top of the base is connected to one end of the handle, the top of the hook is connected to one end of the connecting chain, and the other end of the connecting chain is connected to the middle of the handle.

[0009] Optionally, a mounting seat is provided on the base, a rotating head is rotatably provided in the mounting seat, and one end of the handle is connected to the rotating head.

[0010] Optionally, the mounting seat includes two circular tubes with larger diameters; the two circular tubes with larger diameters are coaxially arranged on the upper surface of the base, and there is a certain interval between the two circular tubes with larger diameters; the rotating head includes a circular tube with smaller diameters; a connecting port is arranged in the middle of the circular tube with smaller diameters; the two ends of the circular tube with smaller diameters respectively extend into the corresponding circular tubes with larger diameters, and the connecting port is used for detachable connection with one end of the handle.

[0011] Optionally, the rotating head is a tee, and one end of the tee connected to the handle is provided with an internal thread.

[0012] Optionally, the connecting chain is a metal chain or a rope.

[0013] Optionally, the handle includes a first round tube and a second round tube; one end of the first round tube is used to connect to the base, and the other end of the first round tube is used to connect to one end of the second round tube; and the connecting chain is connected to the first round tube.

[0014] Optionally, the first round tube and the second round tube are steel tubes with the same diameter; one end of the first round tube and one end of the second round tube are both provided with external threads, and the base is provided with an internal thread connection port; the other end of the first round tube is provided with an internal thread, and the internal thread matches the external thread.

[0015] Optionally, a plurality of legs are provided on the lower surface of the base.

[0016] Optionally, the legs are connected to the base by welding.

[0017] Compared with the prior art, the utility model has achieved the following technical effects:

[0018] The utility model of the manhole cover opening auxiliary tool can open and close the manhole cover at one time, and the opening is quick and labor-saving. In addition, the rigging is always connected to the manhole cover to prevent the manhole cover from falling off suddenly and causing safety accidents, which not only further improves efficiency but also greatly improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the manhole cover opening auxiliary tool in the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the base and the handle in the manhole cover opening auxiliary tool of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the base, the mounting seat and the rotating head in the manhole cover opening auxiliary tool in the utility model;

[0023] Figure 4 It is a schematic diagram of the lateral structure of the base in the manhole cover opening auxiliary tool in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the base in the manhole cover opening auxiliary tool in the utility model.

[0025] Description of reference numerals:

[0026] 1. Base; 2. Mounting base; 3. Rotating head; 4. Handle; 5. Leg; 6. Chain; 7. Hook. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0028] The utility model aims to provide a manhole cover opening auxiliary tool to solve the problems existing in the prior art. The handle 4 and the base 1 can be disassembled, and the handle 4 can be divided into sections for easy transportation and carrying.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figures 1 to 5 As shown, this embodiment provides a manhole cover opening auxiliary tool, including a base 1, a handle 4, a hook 7 and a connecting chain; the top of the base 1 is connected to one end of the handle 4, the top of the hook 7 is connected to one end of the connecting chain, and the other end of the connecting chain is connected to the middle of the handle 4.

[0031] In this specific embodiment, a mounting seat 2 is provided on the base 1, a rotating head 3 is rotatably provided in the mounting seat 2, and one end of the handle 4 is connected to the rotating head 3. The mounting seat 2 includes two round tubes with larger diameters; the two round tubes with larger diameters are coaxially arranged on the upper surface of the base 1, and there is a certain interval between the two round tubes with larger diameters; the rotating head 3 includes a round tube with smaller diameter; a connecting port is provided in the middle of the round tube with smaller diameter; the two ends of the round tube with smaller diameter respectively extend into the corresponding round tube with larger diameter, and the connecting port is used to be detachably connected with one end of the handle 4.

[0032] The base 1 is a 200mm×200mm×7mm iron plate, the mounting seat 2 is two sections of Dn40 galvanized round steel, and the rotating head 3 is a Dn32 equal-diameter tee.

[0033] In this specific embodiment, the connecting chain is a metal chain 6. The total length of the metal chain 6 and the hook 7 is 300 mm from the fulcrum position and is welded to the handle 4.

[0034] The handle 4 includes a first round tube and a second round tube; one end of the first round tube is used to connect with the base 1, and the other end of the first round tube is used to connect with one end of the second round tube; the connecting chain is connected to the first round tube. The first round tube and the second round tube are steel tubes with the same diameter; one end of the first round tube and one end of the second round tube are both provided with external threads, and the base 1 is provided with an internal thread connection port; the other end of the first round tube is provided with internal threads, and the internal threads match the external threads.

[0035] In this specific embodiment, the handle 4 is made of two sections of Dn25 galvanized steel pipes, the length of the first round pipe is 1.5 meters, the length of the second round pipe is 0.9 meters, and the first round pipe and the second round pipe are connected by a pipe clamp.

[0036] The lower surface of the base 1 is provided with four legs 5. The legs 5 are welded to the base 1 using φ10 steel bars to provide sufficient stable support and the ability to transfer and bear loads.

[0037] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A manhole cover opening auxiliary tool, characterized in that: It comprises a base, a handle, a hook and a connecting chain; the top of the base is connected to one end of the handle, the top of the hook is connected to one end of the connecting chain, and the other end of the connecting chain is connected to the middle of the handle.

2. The manhole cover opening auxiliary tool according to claim 1, characterized in that: A mounting seat is arranged on the base, a rotating head is rotatably arranged in the mounting seat, and one end of the handle is connected to the rotating head.

3. The manhole cover opening auxiliary tool according to claim 2, characterized in that: The mounting seat includes two circular tubes with larger diameters; the two circular tubes with larger diameters are coaxially arranged on the upper surface of the base, and there is a certain interval between the two circular tubes with larger diameters; the rotating head includes a circular tube with smaller diameters; a connecting port is arranged in the middle of the circular tube with smaller diameters; the two ends of the circular tube with smaller diameters respectively extend into the corresponding circular tubes with larger diameters, and the connecting port is used for detachable connection with one end of the handle.

4. The manhole cover opening auxiliary tool according to claim 2, characterized in that: The rotating head is a tee, and one end of the tee connected to the handle is provided with an internal thread.

5. The manhole cover opening auxiliary tool according to claim 1, characterized in that: The connecting chain is a metal chain or a rope.

6. The manhole cover opening auxiliary tool according to claim 1, characterized in that: The handle includes a first round tube and a second round tube; one end of the first round tube is used to connect with the base, and the other end of the first round tube is used to connect with one end of the second round tube; the connecting chain is connected to the first round tube.

7. The manhole cover opening auxiliary tool according to claim 6, characterized in that: The first round tube and the second round tube are steel tubes with the same diameter; one end of the first round tube and one end of the second round tube are both provided with external threads, and the base is provided with an internal thread connection port; the other end of the first round tube is provided with an internal thread, and the internal thread matches the external thread.

8. The manhole cover opening auxiliary tool according to claim 1, characterized in that: A plurality of legs are arranged on the lower surface of the base.

9. The manhole cover opening auxiliary tool according to claim 8, characterized in that: The supporting legs are connected to the base by welding.

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