Underground pipeline heavy maintenance well lid opening device

Abstract

The utility model provides an opening device for a heavy maintenance well lid of an underground pipeline. The opening device comprises a top connecting cross rod, a middle connecting cross rod and two bearing triangular support bodies. The middle connecting cross rod and the top connecting cross rod are both connected with two bearing tripod bodies, rotating suspension arms are rotationally arranged at the two ends of the top connecting cross rod, suspension rods are arranged on the rotating suspension arms, stress pull ropes are connected to the suspension rods in a binding mode, and lifting hooks are connected to the stress pull ropes in a binding mode. The problems that in the prior art, a well lid is difficult to open, efficiency is low, and potential safety hazards exist are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the manhole cover opening related technical field, especially in heavy underground pipeline maintenance manhole cover opening device. BACKGROUND

[0002] As the lifeline of the city, the underground pipeline is indispensable in the daily maintenance and surveying data collection work. The heavy manhole cover is difficult to open, and the efficiency is low. The safety risk is hidden. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing heavy underground pipeline maintenance manhole cover opening device, in order to solve the above-mentioned manhole cover opening difficult, the problem of low efficiency and the existence of safety hidden danger.

[0004] Therefore, the utility model adopts the technical scheme, heavy underground pipeline maintenance manhole cover opening device, including top connecting cross bar, middle connecting cross bar and two left and right interval arrangement's bearing tripod body, the both ends of middle connecting cross bar and top connecting cross bar are connected two bearing tripod bodies respectively, the both ends of top connecting cross bar are all rotationally arranged with rotating crane arm in the inside, be provided with derrick on rotating crane arm, be bound with force pulling rope on derrick, be bound with lifting hook on force pulling rope.

[0005] As the preferred scheme, the top connecting cross bar and the middle connecting cross bar are telescopic rods, and can be detachably connected with the two bearing tripod bodies.

[0006] Further preferably, the rotating crane arm adopts a "√" type, and a limiting rod is fixedly installed at the corner position, the limiting rod and the rotating crane arm enclose a triangular rotating groove, and the top connecting cross bar passes through the rotating groove, so that the rotating connection of the rotating crane arm on the top connecting cross bar is realized.

[0007] Further preferably, the both ends of the top connecting cross bar are fixedly provided with two limiting stop rings, and the rotating crane arm is located between the two adjacent limiting stop rings.

[0008] Further preferably, an expansion hole is formed in the rotating crane arm, the derrick is inserted into the expansion hole, and a plurality of positioning holes are axially formed in the derrick, a locking screw is threadedly connected to the rotating crane arm, and the locking screw penetrates the positioning hole.

[0009] Further preferably, the load-bearing tripod body is provided with wheels at the bottom end.

[0010] The present utility model has the advantages of:

[0011] 1. The present utility model utilizes the principle of lever to greatly reduce the manpower required to open the manhole cover and shorten the time required to open the manhole cover, making the operation of opening the manhole cover simple and improving the efficiency of opening the manhole cover.

[0012] 2. The two load-bearing tripod bodies, the top connecting crossbar and the middle connecting crossbar can provide strong support, ensuring overall rigidity, meeting the demand for heavy load, and preventing overturning. The lifting hook can ensure firm grasping of the manhole cover and completely avoid the risk of accidental sliding of the manhole cover. The operator is far away from the direct stress point at the wellhead, reducing the risk of injury and eliminating safety hazards.

[0013] 3. The top connecting crossbar, the middle connecting crossbar, the two load-bearing tripod bodies, the rotating lifting arm, the stress pulling rope and the lifting hook can be detached for separate transportation, greatly facilitating the transportation and storage of the entire device, and are particularly suitable for pipeline maintenance and repair, surveying and mapping data collection operations in urban narrow spaces and the wild. During use, the device can be quickly assembled on site, significantly improving operational flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic diagram of the present utility model.

[0015] Fig. 2 is a structural schematic diagram of the rotating lifting arm and the lifting rod in the present utility model.

[0016] Fig. 3 is a connection relationship diagram of the lifting rod and the locking screw in the present utility model. DETAILED DESCRIPTION

[0017] The present utility model will be further described below in conjunction with the drawings and examples.

[0018] As shown in Figs. 1-3 the underground pipeline heavy maintenance manhole cover opening device, including top connecting crossbar 8, middle connecting crossbar 9 and two left and right interval setting load-bearing tripod body 1. The two ends of the middle connecting crossbar 9 and the top connecting crossbar 8 are respectively connected with two load-bearing tripod bodies 1, and the inner side of the two ends of the top connecting crossbar 8 is rotatably provided with a rotating lifting arm 3, and the rotating lifting arm 3 is provided with a lifting rod 4, and the lifting rod 4 is bound and connected with a stress pulling rope 10, and the stress pulling rope 10 is bound and connected with a lifting hook 11.

[0019] When the manhole cover is to be opened, the two load-bearing triangular frame bodies 1 are moved to the manhole, and the two load-bearing triangular frame bodies 1 are placed on both sides of the manhole, and then the rotating hoist arm 3 is rotated, the rotating hoist arm 3 is rotated with the hoist rod 4, until the hoist rod 4 is rotated to the top of the manhole cover, and then the hook 11 is firmly hooked on the manhole cover handle or the reserved lifting point, and the operator can stably and labor-savingly open the manhole cover and lift it away from the manhole by rotating the rotating hoist arm 3.

[0020] The top connecting cross bar 8 and the middle connecting cross bar 9 are both telescopic rods and can be detachably connected with the two load-bearing triangular frame bodies 1.

[0021] The top connecting cross bar 8 and the middle connecting cross bar 9 are both telescopic rods, and the distance between the two load-bearing triangular frame bodies 1 can be flexibly adjusted according to the distance between manholes of different sizes, and wide adaptability is achieved. The top connecting cross bar 8 and the middle connecting cross bar 9 are both detachably connected with the two load-bearing triangular frame bodies 1 through rivets.

[0022] The rotating hoist arm 3 is in the shape of "√", and a limiting rod 6 is fixedly installed at the corner position, the limiting rod 6 and the rotating hoist arm 3 form a triangular rotating groove 7, and the top connecting cross bar 8 passes through the rotating groove 7, so that the rotating hoist arm 3 is rotationally connected on the top connecting cross bar 8.

[0023] The top connecting cross bar 8 passes through the rotating groove 7, so that the rotating hoist arm 3 can rotate on the top connecting cross bar 8, thereby realizing the lifting of the manhole cover.

[0024] Two limiting stop rings 5 are fixedly arranged at both ends of the top connecting cross bar 8, and the rotating hoist arm 3 is located between two adjacent limiting stop rings 5.

[0025] When the rotating hoist arm 3 lifts the manhole cover, the limiting rod 6 abuts against the top end of the top connecting cross bar 8, and the two adjacent limiting stop rings 5 can limit the limiting rod 6 to prevent the limiting rod 6 from axially moving on the top connecting cross bar 8, and the limiting stop ring 5 can pass through the rotating groove 7, thereby facilitating the disassembly of the rotating hoist arm 3 and the top connecting cross bar 8.

[0026] The rotating hoist arm 3 is provided with an expansion hole, the hoist rod 4 is inserted into the expansion hole, and a plurality of positioning holes are axially arranged on the rotating hoist arm 3, and a locking screw 12 is threadedly connected on the rotating hoist arm 3 and penetrates the positioning hole.

[0027] The locking screw 12, the plurality of positioning holes and the telescopic hole can realize the length adjustment of the boom 4 extending out of the rotary arm 3, so as to adapt to different sizes of manhole covers or adjust the optimal lifting height and angle of the hook 11, and optimize the lever arm force.

[0028] The bearing tripod body 1 is provided with the wheels 2 at the bottom end.

[0029] The wheels 2 can easily push and slide the whole device on the ground, can move the lifted manhole cover to the adjacent empty land to ensure the operation safety, and is convenient for quickly moving between different well positions in the operation site, and greatly reduces the physical work of carrying the device.

[0030] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heavy-duty inspection well cover opening device for underground pipelines, characterized in that: It comprises a top connecting crossbar (8), a middle connecting crossbar (9) and two load-bearing triangular frame bodies (1) arranged at left and right sides; The middle connecting crossbar (9) and the top connecting crossbar (8) are respectively connected with two load-bearing triangular frame bodies (1) at two ends, and the top connecting crossbar (8) is rotatably provided with a rotary hanging arm (3) at the inner side of each end, the rotary hanging arm (3) is provided with a hanging rod (4), the hanging rod (4) is connected with a force-bearing pull rope (10) by binding, and the force-bearing pull rope (10) is connected with a hook (11) by binding.

2. The underground pipeline heavy access well lid opening device according to claim 1, characterized in that: The top connecting crossbar (8) and the middle connecting crossbar (9) are both telescopic rods and can be detachably connected with two load-bearing triangular frame bodies (1).

3. The underground pipeline heavy access well lid opening device according to claim 2, characterized in that: The rotary hanging arm (3) is in the shape of "√", and a limiting rod (6) is fixedly installed at the corner position, the limiting rod (6) and the rotary hanging arm (3) form a triangular rotating groove (7), the top connecting crossbar (8) passes through the rotating groove (7), so that the rotary hanging arm (3) is rotatably connected on the top connecting crossbar (8).

4. The underground pipeline heavy access well lid opening device according to claim 3, characterized in that: The top connecting crossbar (8) is fixedly provided with two limiting stop rings (5) at two ends, and the rotary hanging arm (3) is located between two adjacent limiting stop rings (5).

5. The underground pipeline heavy access hole cover opening device according to claim 1, characterized in that: The rotary hanging arm (3) is provided with an expansion hole, the hanging rod (4) is inserted into the expansion hole, and a plurality of positioning holes are axially arranged on the hanging rod (4), the rotary hanging arm (3) is threadedly connected with a locking screw (12), and the locking screw (12) penetrates through the positioning hole.

6. The underground pipeline heavy access hole cover opening device according to claim 1, characterized in that: The load-bearing triangular frame body (1) is provided with a wheel (2) at the bottom end.

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