Well lid lifting device for municipal road engineering

Abstract

The well lid lifting device for municipal road engineering comprises a supporting frame, a lifting plate is arranged on the inner side face of the supporting frame, a take-up wheel is arranged at the top of the supporting frame, a pull ring is fixedly connected to the top of the lifting plate, and a pull rope is fixedly connected to the surface of the pull ring. The end, away from the pull ring, of the pull rope is fixedly connected with the surface of the take-up wheel, a first sliding groove is formed in the surface of the lifting plate, a first fixing assembly is arranged in the first sliding groove, a moving groove is formed in the side face of the fixing pipe, an electric push rod is fixedly connected to the top of the fixing pipe, and a pressing piece is fixedly connected to the output end of the electric push rod. The bottom of the pressing piece is fixedly connected with a clamping hole frame. The fixing pipe penetrates through the round hole in the surface of the well lid, then the electric push rod is started to drive the clamping hole frame to be folded, the well lid is limited and fixed through the clamping hole frame, then the pull rope is driven by the take-up wheel to move upwards, and then the well lid is lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal road engineering, in particular to a manhole cover lifting device for municipal road engineering. Background Art

[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling. They can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers and resin manhole covers. Generally, manhole covers are round and can be used in green belts, sidewalks, motor vehicle lanes, docks and alleys. When maintenance personnel need to dredge the sewer, they need to move the manhole cover. Usually, maintenance personnel use a manhole cover lifting device to lift the manhole cover. The existing manhole cover lifting device uses a hook to lift the manhole cover. The hook will cause the manhole cover to shake left and right during the process of lifting the manhole cover, which is unstable and easily causes the manhole cover to fall off the hook.

[0003] In the prior art, workers can lift some small manhole covers by holding a hook. However, for some large and heavy manhole covers, it is more laborious for workers to hold the hook, so a lifting device is used. However, after the hook in the lifting device passes through the holes on the surface of the manhole cover, the stability of fixing the manhole cover is poor. Therefore, a lifting device that can stably fix the manhole cover is needed. Therefore, a manhole cover lifting device for municipal road engineering is proposed. Utility Model Content

[0004] The utility model aims to provide a manhole cover lifting device for municipal road engineering, so as to solve the problem that the hook structure adopted by the existing lifting device has poor fixation on the manhole cover.

[0005] The cam is provided with a lifting plate, and the lifting plate is provided with a lifting plate on the inner side surface of the support frame. The top of the support frame is provided with a take-up wheel, and one end of the take-up wheel is fixedly connected to a driving motor, and the driving motor is fixedly connected to the top of the support frame. The top of the lifting plate is fixedly connected to a pull ring, and the surface of the pull ring is fixedly connected to a pull rope, and the end of the pull rope away from the pull ring is fixedly connected to the surface of the take-up wheel. The surface of the lifting plate is provided with a first slide groove and a second slide groove, and a first fixing component is provided inside the first slide groove, and a second fixing component is provided inside the second slide groove. The first fixing component includes a fixed tube, and a movable groove is provided on the side surface of the fixed tube, and an electric push rod is fixedly connected to the top of the fixed tube, and a pressing piece is fixedly connected to the output end of the electric push rod, and a clamping hole frame is fixedly connected to the bottom of the pressing piece, and one end of the clamping hole frame away from the pressing piece is fixedly connected to the bottom of the fixed tube, and a limiting ring is fixedly connected to the surface of the fixed tube.

[0006] Preferably, components of the first fixing assembly are the same as components of the second fixing assembly.

[0007] Preferably, a first limiting hole is opened on the surface of the lifting plate, and the first limiting hole and the first sliding groove are parallel to each other.

[0008] Preferably, a second limiting hole is opened on the surface of the lifting plate, and the second limiting hole and the second sliding groove are parallel to each other.

[0009] Preferably, a slide rail is fixedly connected to the side of the support frame, a slider is slidably connected inside the slide rail, and a side of the slider is fixedly connected to the side of the lifting plate.

[0010] Preferably, a first fixed plate and a second fixed plate are fixedly connected to the top of the support frame, the distance between the first fixed plate and the second fixed plate is equal to the length of the take-up wheel, and the two ends of the take-up wheel are rotatably connected to the side surfaces of the first fixed plate and the second fixed plate respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model fixes the pipe through the circular hole on the surface of the manhole cover, and then starts the electric push rod to drive the hole-holder frame to fold, and uses the hole-holder frame to limit and fix the manhole cover, and then uses the take-up wheel to drive the pull rope to move upward, thereby lifting the manhole cover;

[0013] 2. The utility model also adjusts the distance between the first fixing component and the second fixing component by setting the first limiting hole and the second limiting hole, so as to adapt to manhole covers of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a manhole cover lifting device for municipal road engineering in this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of a manhole cover lifting device for municipal road engineering in this utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the structure of a lifting plate and other components of a manhole cover lifting device for municipal road engineering of the utility model;

[0017] Figure 4 This is a cross-sectional view of the structure of the first fixing component of a manhole cover lifting device for municipal road engineering of the utility model;

[0018] Figure 5 This is an enlarged schematic diagram of the structure of a slider of a manhole cover lifting device for municipal road engineering of the utility model;

[0019] Figure 6It is an enlarged schematic diagram of the structure of the first fixing component of a manhole cover lifting device for municipal road engineering of the utility model.

[0020] In the figure: 1. support frame; 2. lifting plate; 3. first fixed plate; 4. second fixed plate; 5. take-up wheel; 6. driving motor; 7. pull rope; 8. pull ring; 9. first slide groove; 10. second slide groove; 11. first limiting hole; 12. second limiting hole; 13. first fixed component; 131. fixed tube; 132. movable groove; 133. electric push rod; 134. pressing piece; 135. hole frame; 136. limiting ring; 14. second fixed component; 15. slide rail; 16. slider. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-6The utility model provides a technical solution: it includes a support frame 1, the support frame 1 is a U-shaped structure, and then a first fixing plate 3 and a second fixing plate 4 are fixed on the top surface of the support frame 1 by screws, the first fixing plate 3 and the second fixing plate 4 have the same shape, and the first fixing plate 3 and the second fixing plate 4 are symmetrically arranged on the top of the support frame 1, and then a take-up wheel 5 is arranged between the first fixing plate 3 and the second fixing plate 4, and the distance between the first fixing plate 3 and the second fixing plate 4 is equal to the length of the take-up wheel 5, and then the two ends of the take-up wheel 5 are respectively fixed on the inner side surfaces of the first fixing plate 3 and the second fixing plate 4 by bearing rings, so that the take-up wheel 5 can be fixed and rotated at the same time, one end of the take-up wheel 5 passes through the second fixing plate 4 and extends to the other side of the second fixing plate 4, and then the extended end is connected to the output end of the driving motor 6 by a coupling, and then the driving motor 6 is fixed on At the top of the support frame 1, after starting the driving motor 6, the wire take-up wheel 5 can be driven to rotate between the first fixed plate 3 and the second fixed plate 4. The slide rail 15 is fixed with screws on the inner side surfaces of the two vertical sides of the support frame 1, and a T-shaped groove is opened inside the slide rail 15. Then, a slider 16 of the T-shaped block is stuck in the inside of the slide rail 15, and the side of the slider 16 is fixed to the port of the lifting plate 2 with screws. The two sliders 16 are respectively fixed at both ends of the lifting plate 2, and a pull ring 8 is welded at the middle position of the top of the lifting plate 2. Then, a pull rope 7 is set between the pull ring 8 and the wire take-up wheel 5, one end of the pull rope 7 is tied to the surface of the pull ring 8, and the other end is tied to the surface of the wire take-up wheel 5. After starting the driving motor 6, the wire take-up wheel 5 starts to rotate, and then the pull rope 7 is wound, and the pull rope 7 drives the lifting plate 2 to lift through the pull ring 8. During the movement of the lifting plate 2, it will be stuck in the inside of the slide rail 15 through the slider 16 to prevent the lifting plate 2 from being out of position;

[0023] A first slotted slot 9 of a groove type is provided at the middle position of the left end of the lifting plate 2, and a second slotted slot 10 of the same groove type is provided at the middle position of the right end of the lifting plate 2. The first slotted slot 9 and the second slotted slot 10 are symmetrically provided at both ends of the lifting plate 2, and then a first fixing component 13 is provided inside the first slotted slot 9, and a second fixing component 14 is provided inside the second slotted slot 10. The components of the first fixing component 13 and the components of the second fixing component 14 are the same, so the structural composition and matching relationship of the first fixing component 13 are introduced below. The second fixing component 14 is provided in the same manner, and a row of first limiting holes 11 is provided next to the first slotted slot 9, and the distances between the two holes in this row of first limiting holes 11 are equal. At the same time, a row of second limiting holes 12 is provided next to the second slotted slot 10, and the distances between the two holes in a row of second limiting holes 12 are also equal;

[0024] The first fixing assembly 13 includes a fixing tube 131, which is a tubular structure. An ear plate is welded on the surface of the fixing tube 131. A circular hole is opened on the surface of the ear plate. When the fixing tube 131 moves inside the first slide groove 9, the circular hole on the surface of the ear plate will coincide with the first limiting hole 11. After the position of the fixing tube 131 is adjusted, a screw can be used to pass through the circular hole of the ear plate and the first limiting hole 11, and then the position of the fixing tube 131 can be limited. When the fixing tube 131 is used for lifting, the fixing tube 131 can be prevented from detaching from the lifting plate 2. The electric push rod 133 is fixed to the top of the inner wall of the fixed tube 131 by screws, and then a moving groove 132 is opened on the surface of the fixed tube 131. The number of the moving grooves 132 is two, and the two moving grooves 132 are symmetrically opened on the surface of the fixed tube 131. Then, a hole frame 135 is set at the bottom of the fixed tube 131. The structure of the hole frame 135 is composed of two groups of straight rods. The two groups of straight rods are symmetrical up and down. The number of the upper straight rods is six, and the number of the lower straight rods is also symmetrical. Then, the upper and lower straight rods are connected by hinges, and the top of the upper straight rod is also fixed to the upper side by hinges. The bottom of the lower straight rod is also fixed to a ring by a hinge, and then the lower ring is welded to the bottom surface of the fixed tube 131, and the upper ring is sleeved on the outside of the fixed tube 131, driving the upper ring to rise and fall, so that the two groups of straight rods can be stretched and folded. A limit ring 136 is welded on the surface of the fixed tube 131 and located below the movable groove 132. The position of the limit ring 136 is set at a position where the upper straight rod of the card hole frame 135 is parallel. When the upper ring of the card hole frame 135 is pushed downward, the upper and lower straight rods of the card hole frame 135 can be Fold, and then when the upper end ring of the hole frame 135 contacts the limit ring 136, the upper end straight rod of the hole frame 135 is in a parallel state, and the pressing piece 134 is fixed to the output end of the electric push rod 133 with screws, and the pressing piece 134 is welded to the upper ring of the hole frame 135. After starting the electric push rod 133, the pressing piece 134 is used to drive the two groups of straight rods of the hole frame 135 to fold until they contact the limit ring 136. The hole frame 135 forms an inverted cone structure. Then, after lifting the lifting plate 2, the hole frame 135 can be used to drive the manhole cover to rise.

[0025] Working principle: When in use, the utility model first places the support frame 1 above the manhole cover, and then adjusts the distance between the first fixing component 13 and the second fixing component 14 according to the size of the manhole cover, slides inside the first slide groove 9 and the second slide groove 10 of the lifting plate 2, and after adjustment, uses screws to pass through the first limiting hole 11 and the second limiting hole 12 to fix, and then puts the lifting plate 2 downward, so that the first fixing component 13 and the second fixing component 14 pass through the circular hole on the surface of the manhole cover to reach the lower end of the manhole cover, and then starts the electric push rod 133, and uses the pressing piece 134 to fix the first fixing component 13 and the second fixing component 14 in the fixing tube 131. The movable groove 132 on the side moves downward, and then the hole frame 135 is folded until the circular ring on the upper end of the hole frame 135 contacts the limit ring 136, so that the hole frame 135 is folded into an inverted cone structure, and then the driving motor 6 is started to drive the wire take-up wheel 5 to rotate between the first fixed plate 3 and the second fixed plate 4, and the lifting is carried out by using the pull rope 7 and the pull ring 8 on the top of the lifting plate 2. During the movement, the lifting plate 2 will be fixed by sliding inside the slide rail 15 through the slider 16 on the side, and then the lifting plate 2 and the first fixing component 13 and the second fixing component 14 are used to lift the manhole cover.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manhole cover lifting device for municipal road engineering, comprising a support frame (1), characterized in that: The support frame (1) is a U-shaped structure. The inner side of the support frame (1) is provided with a lifting plate (2). The top of the support frame (1) is provided with a take-up wheel (5). One end of the take-up wheel (5) is fixedly connected to a driving motor (6). The driving motor (6) is fixedly connected to the top of the support frame (1). The top of the lifting plate (2) is fixedly connected to a pull ring (8). The surface of the pull ring (8) is fixedly connected to a pull rope (7). The end of the pull rope (7) away from the pull ring (8) is fixedly connected to the surface of the take-up wheel (5). The surface of the lifting plate (2) is provided with a first slide groove (9) and a second slide groove (10). The first slide groove (9) is provided with a first fixing component ( 13), a second fixing component (14) is provided inside the second slide groove (10), the first fixing component (13) comprises a fixing tube (131), a movable groove (132) is provided on the side of the fixing tube (131), an electric push rod (133) is fixedly connected to the top of the fixing tube (131), a pressing piece (134) is fixedly connected to the output end of the electric push rod (133), a clamping hole frame (135) is fixedly connected to the bottom of the pressing piece (134), one end of the clamping hole frame (135) away from the pressing piece (134) is fixedly connected to the bottom of the fixing tube (131), and a limiting ring (136) is fixedly connected to the surface of the fixing tube (131).

2. The manhole cover lifting device for municipal road engineering according to claim 1 is characterized in that: The components of the first fixing assembly (13) are the same as the components of the second fixing assembly (14).

3. The manhole cover lifting device for municipal road engineering according to claim 1 is characterized in that: A first limiting hole (11) is provided on the surface of the lifting plate (2), and the first limiting hole (11) and the first sliding groove (9) are parallel to each other.

4. The manhole cover lifting device for municipal road engineering according to claim 1, characterized in that: A second limiting hole (12) is provided on the surface of the lifting plate (2), and the second limiting hole (12) and the second sliding groove (10) are parallel to each other.

5. The manhole cover lifting device for municipal road engineering according to claim 1 is characterized in that: A slide rail (15) is fixedly connected to the side of the support frame (1), a slider (16) is slidably connected inside the slide rail (15), and a side of the slider (16) is fixedly connected to the side of the lifting plate (2).

6. The manhole cover lifting device for municipal road engineering according to claim 1, characterized in that: A first fixing plate (3) and a second fixing plate (4) are fixedly connected to the top of the support frame (1); the distance between the first fixing plate (3) and the second fixing plate (4) is equal to the length of the take-up wheel (5); and the two ends of the take-up wheel (5) are rotatably connected to the side surface of the first fixing plate (3) and the side surface of the second fixing plate (4), respectively.

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