Lever type municipal well lid quick opening device

Abstract

The utility model relates to the field of municipal engineering, in particular to a lever type municipal well lid quick opening device which comprises a first connecting rod, a second connecting rod is rotatably connected to the upper side of the left portion of the first connecting rod, and first connecting pieces are rotatably connected between the front side and the rear side of the first connecting rod and the front side and the rear side of the second connecting rod. Second connecting pieces are rotationally connected between the front sides and the rear sides of the second connecting rods and the first connecting rods, the first connecting pieces are located on the outer sides of the adjacent second connecting pieces, third connecting rods which are symmetrical in the front-back direction are rotationally connected to the upper right sides of the first connecting rods, and supporting pieces are rotationally connected to the lower sides of the left sides of the first connecting rods. A connecting frame is connected to the middle lower side of the connecting rod. Impact loads are effectively absorbed through the design of the buffering piece and the double dampers, personnel injury caused by overexertion is avoided, the first limiting piece and the second limiting piece interact, the maximum opening angle of the second connecting rod is limited, risks caused by excessive opening are prevented, and operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal works field especially, relate to a lever type municipal well lid quick opening device. BACKGROUND

[0002] As an important part of urban infrastructure, municipal well lid is widely distributed in roads, sidewalks and various public areas, used for covering underground pipelines and facility entrances. The traditional well lid opening method mainly relies on manual tools such as crowbars, hooks, etc. These methods are low in efficiency and require a lot of physical labor. There are also certain safety hazards in the operation process. Various improved well lid opening devices have appeared on the market, including hydraulic and electric types. These devices have improved work efficiency to some extent, but they are generally heavy, expensive, complex to operate and inconvenient to maintain. Especially for situations where the work site needs to be frequently moved.

[0003] Therefore, in view of the above problems, a lever type municipal well lid quick opening device is developed. UTILITY MODEL CONTENTS

[0004] In order to overcome the problems of existing equipment, such as being heavy, expensive, complex to operate, inconvenient to maintain, and especially for situations where the work site needs to be frequently moved, the utility model provides a lever type municipal well lid quick opening device.

[0005] The technical implementation scheme of the utility model is as follows: a lever type municipal well lid quick opening device, comprising a first connecting rod, a second connecting rod rotatably connected to the left upper side of the first connecting rod, a first connecting piece rotatably connected between the front and rear sides of the first connecting rod and the second connecting rod, a second connecting piece rotatably connected between the front and rear sides of the second connecting rod and the first connecting rod, the first connecting piece located outside the adjacent second connecting piece, a third connecting rod symmetrically connected to the right upper side of the first connecting rod, a support piece rotatably connected to the left lower side of the first connecting rod, a connecting frame connected to the middle lower side of the connecting rod, a damper slidably connected in the connecting frame, two dampers, a spring connected between the damper and the connecting frame, a buffer connected between the lower sides of the dampers, a first limiting piece connected to the left end of the first connecting rod, a second limiting piece connected to the right lower side of the second connecting rod, and the first limiting piece and the second limiting piece interacting with each other.

[0006] In one embodiment, the first connecting rod is Y-shaped.

[0007] In one embodiment, the second connecting piece is left-narrow-right-wide in structure, facilitating hooking the well lid.

[0008] In one of the embodiments, the right inner side of the third connecting rod is connected with a handle.

[0009] In one of the embodiments, the lower side of the supporting piece is provided with anti-skid lines for increasing adhesion.

[0010] In one of the embodiments, the second limiting piece is provided with a rib plate for increasing stability.

[0011] By adopting the above technical scheme, compared with the prior art, the utility model has the advantages of:

[0012] 1. The utility model discloses a buffer and a double damper are designed to effectively absorb impact load, avoid personnel injury caused by excessive force, and the first limiting piece and the second limiting piece interact to limit the maximum opening angle of the second connecting rod, prevent the risk caused by excessive opening, and ensure operation safety.

[0013] 2. The utility model discloses a simple rotation to fold the device to one third of the volume in the unfolded state, convenient to carry and transport, and the compact design greatly enhances the flexibility and application range of the equipment, especially suitable for the working scene of frequent moving operation site, and improves practicality. DRAWINGS

[0014] Figure 1 It is the first state three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is the partial structure schematic view of the utility model.

[0016] Figure 3 It is the partial section three-dimensional structure schematic view of the utility model.

[0017] Figure 4 It is the second state three-dimensional structure schematic view of the utility model.

[0018] In the drawing, 1 is a first connecting rod, 2 is a second connecting rod, 3 is a first connecting piece, 4 is a second connecting piece, 5 is a third connecting rod, 6 is a supporting piece, 7 is a connecting frame, 8 is a buffer, 9 is a damper, 10 is a spring, 11 is a first limiting piece, and 12 is a second limiting piece. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail below in combination with the drawings and specific embodiments, but the protection scope and application scope of the utility model are not limited.

[0020] A lever type municipal well lid quick opening device, like Figures 1-4As shown, comprising a first connecting rod 1, the first connecting rod 1 is Y-shaped structure, the left side of the first connecting rod 1 upper side is rotatably connected with the second connecting rod 2, the second connecting piece 4 is left narrow right wide structure, convenient to hook the manhole cover, the first connecting rod 1 and the second connecting rod 2 between the front and back two sides are rotatably connected with the first connecting piece 3, the second connecting rod 2 and the first connecting rod 1 between the front and back two sides are rotatably connected with the second connecting piece 4, the first connecting piece 3 are located in the outer side of adjacent second connecting piece 4, the first connecting rod 1 right upper side is rotatably connected with front and back symmetry third connecting rod 5, the third connecting rod 5 right inner side is connected with handle, the first connecting rod 1 left lower side is rotatably connected with support 6, the lower side of support 6 is provided with anti-skid pattern, for increasing adhesion, the connecting rod middle part lower side is connected with connecting frame 7, the connecting frame 7 is slidably connected with damper 9, the damper 9 has two, the damper 9 and the connecting frame 7 between are connected with spring 10, the damper 9 lower side between is connected with buffer 8, the first connecting rod 1 left end is connected with first limiting piece 11, the second connecting rod 2 right lower side is connected with second limiting piece 12, the second limiting piece 12 is provided with rib plate on to increase stability, the first limiting piece 11 and the second limiting piece 12 interact.

[0021] Need to be explained, when opening the municipal manhole cover, the device can be used for operation, the device has storage function, and can quickly open the manhole cover by using the principle of lever, first, the device is brought to the position where operation is needed, then the second connecting rod 2 left end narrow part is accurately inserted into the manhole cover reserved cavity, and it is ensured that the support 6 is in good contact with the ground, the anti-skid pattern on the lower side increases the friction with the ground, forms a stable support point, then, both hands hold the handle on the third connecting rod 5 and press downward, the torque is transmitted through the Y-shaped first connecting rod 1, the first connecting rod 1 and the second connecting piece 4 jointly constitute a four-bar linkage mechanism, which ensures the accuracy of horizontal displacement of the second connecting rod 2, in this process, the first limiting piece 11 and the second limiting piece 12 interact, limit the maximum opening angle of the second connecting rod 2, ensure the safety and stability of operation, when the manhole cover completely separates from the well mouth, the buffer 8 will move downward until it contacts the ground to form a secondary support point, at this time, the double damper 9 and the spring 10 are synchronously squeezed inward, effectively absorbing the impact load, preventing personnel from being injured due to excessive force, after taking out the manhole cover, due to the effect of inertia, the third connecting rod 5 will reset upward, at the same time, the damper 9 and the spring 10 will also automatically restore to the original state, complete the whole work flow.

[0022] It needs to be explained that, after the utility model completes the task, in order to facilitate carrying and transportation, the device can be folded and stored, first, the second connecting rod 2 is rotated to the right lower side, makes it drive the second connecting piece 4 to rotate until the upper side of the first connecting rod 1 is closely attached, then the two third connecting rods 5 are rotated to the left lower side in turn, make it adhere and fixed on the upper side of the second connecting rod 2, so the volume of the whole device can be reduced to one third of the unfolded state, greatly facilitate the subsequent handling and storage, this design not only improves the work efficiency, also considers the safety of operating personnel and the portability of equipment.

[0023] While the utility model has been described with reference to the example embodiments, it is to be understood that the utility model is not limited to the disclosed example embodiments. The scope of the following claims is to be given the broadest interpretation to encompass all variations and equivalents.

Claims

1. A lever type quick opening device for a municipal manhole cover, characterized in that, The utility model provides a kind of well cover lifting device, including first connecting rod (1), the second connecting rod (2) is rotatably connected on the left upper side of first connecting rod (1), first connecting piece (3) is rotatably connected between the front and back two sides of first connecting rod (1) and second connecting rod (2), second connecting piece (4) is rotatably connected between the front and back two sides of second connecting rod (2) and first connecting rod (1), first connecting piece (3) is located in the outside of adjacent second connecting piece (4), the third connecting rod (5) of front and back symmetry is rotatably connected in the right upper side of first connecting rod (1), support piece (6) is rotatably connected in the left lower side of first connecting rod (1), connecting frame (7) is connected in the middle lower side of connecting rod, damper (9) is slidably connected in connecting frame (7), damper (9) has two, spring (10) is connected between damper (9) and connecting frame (7), buffer (8) is connected between the lower side of damper (9), first limiting part (11) is connected in the left end of first connecting rod (1), second limiting part (12) is connected in the right lower side of second connecting rod (2), first limiting part (11) and second limiting part (12) interact.

2. A lever operated quick opening device for a municipal cover as defined in claim 1, wherein, The first connecting rod (1) is Y-shaped structure.

3. A lever operated quick opening device for a manhole cover as claimed in claim 1 wherein, The second connecting piece (4) is left narrow right wide structure, which is convenient to hook the well lid.

4. A lever operated quick opening device for a manhole cover as defined in claim 1, wherein, The third connecting rod (5) is connected with the handle on the right inner side.

5. A lever operated quick opening device for a manhole cover as claimed in claim 1 wherein, The support piece (6) is provided with anti-skid lines on the lower side to increase the adhesion.

6. A lever operated quick opening device for a municipal cover as defined in claim 1, wherein, The second limiting part (12) is provided with a rib plate on the upper side to increase the stability.

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