Novel inspection well cover opening tool

Abstract

The utility model discloses a novel inspection well lid opening tool, which relates to the technical field of operation tools, and comprises a holding rod assembly, and an adjustable hooking mechanism is arranged in the holding rod assembly and on the front surface of the holding rod assembly; the holding rod assembly comprises a holding rod body, a longitudinal sliding groove, a containing groove and a limiting groove. The longitudinal sliding groove is formed in the top of the front face of the holding rod body, the containing groove is formed in the bottom of the front face of the holding rod body, and the multiple limiting grooves are sequentially formed in the left side of the holding rod body from top to bottom and communicate with the holding rod body; the adjustable hooking mechanism comprises a sliding column, a limiting rod, a steel wire rope and an insertion rod; the sliding column is arranged in the holding rod body in a sliding mode in the vertical direction. The hook length can be adjusted, the steel wire rope and the insertion rod can be conveniently stored when the hook is not used, the opening difficulty of the inspection well cover is reduced, and meanwhile the hook is more convenient to use in actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of working tools, in particular to a novel tool for opening manhole covers. Background Art

[0002] In the urban pipe network, rainwater, domestic sewage, water supply, electricity, communication and other pipelines are arranged with an inspection well at a certain distance to facilitate the inspection and cleaning of underground pipelines by staff. Usually, a base is set at the wellhead of the inspection well, and the well cover is placed on the base. There is a reserved hole or vent on the well cover for opening the well cover. Opening the well cover is a very frequent job during the inspection and maintenance of the pipe network and pipelines.

[0003] The utility model patent with patent application publication number CN 212248373U discloses a portable manhole cover opening tool, including a main rod and a hook, the first end of the main rod is provided with a roller and at least one pry head, the end of the first end is provided with a knock buffer part, and the middle part of the main rod is provided with at least one limit buckle; the hook can be hooked on the main rod and abut against the limit buckle.

[0004] When in use, one end of the hook is hooked on the main rod, and the other end is hooked with the manhole cover. The manhole cover is pulled by utilizing the lever principle. The roller can reduce the friction with the ground when moving the manhole cover. When the manhole cover is difficult to open, the manhole cover can be knocked by knocking the buffer part or prying along the edge of the manhole cover with the prying head. The portable manhole cover opening tool of the utility model has a simple structure, can be carried and operated by one person, and is conducive to reducing the difficulty of opening the manhole cover.

[0005] However, the above device still has some shortcomings in actual use. The most obvious one is that the length of the hook cannot be adjusted. When actually hooking the hook to the manhole cover, the technician often needs to use one hand to support the main rod to ensure that the hook length is sufficient to support the connection between the hook and the manhole cover. There is a certain degree of difficulty in actual operation, and it is not convenient in actual use.

[0006] Therefore, it is necessary to invent a novel manhole cover opening tool to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a novel tool for opening manhole covers to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of manhole cover opening tool, comprising a grip assembly, wherein an adjustable hook connection mechanism is provided inside the grip assembly and on the front of the grip assembly;

[0009] The grip assembly comprises a grip body, a longitudinal slide groove, a receiving groove and a limiting groove;

[0010] The longitudinal sliding groove is opened at the top of the front of the handle body, the receiving groove is opened at the bottom of the front of the handle body, and the limiting groove is provided in plurality, and the plurality of limiting grooves are opened in sequence from top to bottom on the left side of the handle body and are all connected to the handle body;

[0011] The adjustable hooking mechanism comprises a sliding column, a limiting rod, a steel wire rope and an insertion rod;

[0012] The sliding column is slidably arranged inside the handle body along the vertical direction, the limiting rod is slidably arranged inside the uppermost limiting groove and is fixedly connected to the sliding column, one end of the steel wire rope is fixedly connected to the sliding column and the other end passes through the inner wall of the handle body and slides to extend to the inside of the receiving groove and is fixedly connected to the insertion rod, and the insertion rod is located inside the receiving groove.

[0013] Preferably, a rubber end is fixedly provided at the bottom end of the grip assembly, and an anti-slip protrusion is provided on the outer side of the rubber end.

[0014] Preferably, pry heads are provided at the bottom of both sides of the handle assembly, and the two pry heads are fixedly connected to the handle assembly.

[0015] Preferably, a first magnet is fixedly nested on the side surface of the sliding column, and a plurality of second magnets are fixedly nested on the inner wall of the grip body from top to bottom.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model is provided with a grip rod assembly and an adjustable hook connection mechanism, so that the limit rod is toggled to make the limit rod disengage from the inner side of the limit groove just above, and then the limit rod is slid, and the sliding column is driven to slide synchronously inside the grip rod body when the limit rod slides, at this time, the limit rod no longer pulls the insertion rod through the wire rope, and the insertion rod automatically disengages from the inner side of the accommodating groove, and when the limit rod slides to a suitable position, the limit rod is rotated toward the inner side of the adjacent limit groove, and the disengaged insertion rod is taken out at this time. Take it, and then insert it into the hole on the manhole cover. After the insertion rod is fully inserted under the manhole cover, the grip rod body is taken up. At this time, the grip rod body is rotated to the side away from the manhole cover with the rubber end as the base point, and the grip rod body lifts the manhole cover through the wire rope and the insertion rod. Compared with the same type of device in the prior art, the utility model can adjust the hook length, and the wire rope and the insertion rod can be conveniently stored when not in use, which reduces the difficulty of opening the manhole cover and is more convenient in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall front view structure of the utility model.

[0019] Figure 2It is a front view cross-sectional structural schematic diagram of the grip assembly of the utility model.

[0020] Figure 3 It is a partial front view structural diagram of the grip body of the utility model.

[0021] In the figure: 1. grip assembly; 11. grip body; 12. longitudinal slide groove; 13. receiving groove; 14. limit groove; 2. adjustable hook mechanism; 21. sliding column; 22. limit rod; 23. wire rope; 24. insertion rod; 3. rubber end; 4. pry head; 5. first magnet; 6. second magnet. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1 A new type of manhole cover opening tool shown in Figure 3 includes a handle assembly 1, and an adjustable hook mechanism 2 is provided inside the handle assembly 1 and on the front of the handle assembly 1.

[0024] like Figure 2 and Figure 3 As shown, the grip assembly 1 includes a grip body 11, a longitudinal slide groove 12, a receiving groove 13 and a limiting groove 14, wherein the longitudinal slide groove 12 is opened at the top of the front side of the grip body 11, the receiving groove 13 is opened at the bottom of the front side of the grip body 11, and a plurality of limiting grooves 14 are provided, and the plurality of limiting grooves 14 are sequentially opened on the left side of the grip body 11 from top to bottom and are all connected to the grip body 11.

[0025] like Figure 2 and Figure 3 As shown, the adjustable hook mechanism 2 includes a sliding column 21, a limiting rod 22, a steel wire rope 23 and an insertion rod 24, wherein the sliding column 21 is slidably arranged inside the handle body 11 along the vertical direction, the limiting rod 22 is slidably arranged inside the uppermost limiting groove 14 and is fixedly connected to the sliding column 21, one end of the steel wire rope 23 is fixedly connected to the sliding column 21 and the other end passes through the inner wall of the handle body 11 and slides and extends to the inside of the receiving groove 13 and is fixedly connected to the insertion rod 24, and the insertion rod 24 is located on the inner side of the receiving groove 13.

[0026] By arranging the above-mentioned gripping rod assembly 1 and the adjustable hooking mechanism 2, it is convenient to move the limit rod 22, so that the limit rod 22 is disengaged from the inner side of the limit groove 14 just above, and then the limit rod 22 is slid. When the limit rod 22 slides, it drives the sliding column 21 to slide synchronously inside the gripping rod body 11. At this time, the limit rod 22 no longer pulls the insertion rod 24 through the wire rope 23, and the insertion rod 24 automatically disengages from the inner side of the accommodating groove 13. When the limit rod 22 slides to a suitable position, the limit rod 22 is rotated toward the inner side of the adjacent limit groove 14. At this time, the disengaged insertion rod 24 is taken out and then inserted into the hole on the manhole cover. After the insertion rod 24 is fully inserted under the manhole cover, the gripping rod body 11 is taken out. At this time, the gripping rod body 11 is rotated to the side away from the manhole cover with the rubber end 3 as the base point, and the gripping rod body 11 lifts the manhole cover through the wire rope 23 and the insertion rod 24.

[0027] like Figure 1 and Figure 3 As shown, a rubber end cap 3 is fixedly provided at the bottom of the grip assembly 1, and an anti-skid protrusion is provided on the outside of the rubber end cap 3. Prying heads 4 are provided at the bottom of both sides of the grip assembly 1. The two prying heads 4 are fixedly connected to the grip assembly 1, so that when the grip assembly 1 is rotated with the rubber end cap 3 as the base point, the anti-skid protrusion can prevent the rubber end cap 3 from sliding randomly. At the same time, when the manhole cover is too severely corroded and cannot be moved, the technician can use the prying head 4 to knock on the rusted part.

[0028] like Figure 2 As shown, a first magnet 5 is fixedly nested on the side of the sliding column 21, and a plurality of second magnets 6 are fixedly nested on the inner wall of the handle body 11 from top to bottom, so that when the limiting rod 22 rotates to the inner side of any limiting groove 14, the first magnet 5 on the side of the sliding column 21 and the second magnet 6 near the limiting groove 14 are attracted to each other, thereby preventing the sliding column 21 from rotating at will and driving the limiting rod 22 to escape from the inner side of the limiting groove 14.

[0029] Working principle of this utility model:

[0030] During actual use, the limiting rod 22 is toggled so that the limiting rod 22 is disengaged from the inner side of the limiting groove 14 directly above, and then the limiting rod 22 is slid. When the limiting rod 22 slides, it drives the sliding column 21 to slide synchronously inside the handle body 11. At this time, the limiting rod 22 no longer pulls the insertion rod 24 through the wire rope 23, and the insertion rod 24 automatically disengages from the inner side of the accommodating groove 13. When the limiting rod 22 slides to a suitable position, the limiting rod 22 is rotated toward the inner side of the adjacent limiting groove 14;

[0031] When the limiting rod 22 rotates to the inner side of the limiting groove 14, the first magnet 5 on the side of the sliding column 21 and the second magnet 6 near the limiting groove 14 are attracted to each other, thereby preventing the sliding column 21 from rotating randomly and driving the limiting rod 22 to escape from the inner side of the limiting groove 14;

[0032] At this time, the inserted rod 24 that has been dislodged is taken out, and then inserted into the hole on the manhole cover. After the inserted rod 24 is completely inserted under the manhole cover, the grip rod body 11 is taken out. At this time, the grip rod body 11 is rotated to the side away from the manhole cover with the rubber end 3 as the base point, and the grip rod body 11 lifts the manhole cover through the steel wire rope 23 and the inserted rod 24;

[0033] After the operation is completed, the insertion rod 24 is taken so that the insertion rod 24 is perpendicular to the hole of the manhole cover, and then the insertion rod 24 is passed through, and finally the limit rod 22 is rotated, and the sliding limit rod 22 is slid so that the sliding column 21 drives the insertion rod 24 to reset through the wire rope 23.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of manhole cover opening tool, characterized by: It comprises a grip assembly (1), wherein an adjustable hook connection mechanism (2) is provided inside the grip assembly (1) and on the front side of the grip assembly (1); The grip assembly (1) comprises a grip body (11), a longitudinal slide groove (12), a receiving groove (13) and a limiting groove (14); The longitudinal sliding groove (12) is provided at the top of the front face of the handle body (11), the receiving groove (13) is provided at the bottom of the front face of the handle body (11), a plurality of the limiting grooves (14) are provided, and the plurality of limiting grooves (14) are sequentially provided at the left side of the handle body (11) from top to bottom and are all connected to the handle body (11); The adjustable hook mechanism (2) comprises a sliding column (21), a limiting rod (22), a steel wire rope (23) and an insertion rod (24); The sliding column (21) is slidably arranged inside the handle body (11) along the vertical direction, the limiting rod (22) is slidably arranged inside the uppermost limiting groove (14) and is fixedly connected to the sliding column (21), one end of the steel wire rope (23) is fixedly connected to the sliding column (21) and the other end passes through the inner wall of the handle body (11) and slides to extend to the inside of the receiving groove (13) and is fixedly connected to the insertion rod (24), and the insertion rod (24) is located inside the receiving groove (13).

2. A new type of manhole cover opening tool according to claim 1, characterized in that: A rubber end head (3) is fixedly arranged at the bottom end of the grip assembly (1), and an anti-slip protrusion is arranged on the outer side of the rubber end head (3).

3. A new type of manhole cover opening tool according to claim 2, characterized in that: The bottoms of both sides of the handle assembly (1) are provided with prying heads (4), and the two prying heads (4) are fixedly connected to the handle assembly (1).

4. A new type of manhole cover opening tool according to claim 3, characterized in that: A first magnet (5) is fixedly nested on the side of the sliding column (21), and a plurality of second magnets (6) are fixedly nested on the inner wall of the grip body (11) from top to bottom.

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