Municipal well lid mounting device

Abstract

The utility model discloses a municipal well lid installation device which comprises a trolley, a handle frame is arranged on the trolley, a switch button is arranged at the top of one end of the handle frame, a controller is arranged on the trolley, two first telescopic rods are arranged at the two ends of the controller respectively, and lifting and placing rods are connected to the two first telescopic rods. Small supporting rods are rotationally installed on the side walls of the two ends of the lifting and placing rod, a second telescopic rod is arranged in the lifting and placing rod, the switch button, the first telescopic rod and the second telescopic rod are all electrically connected with the controller, and when the second telescopic rod stretches out, the two small supporting rods are rotationally opened to be perpendicular to the lifting and placing rod by 90 degrees. According to the well lid carrying device, the lifting rod and the small supporting rod are arranged, so that well lid carrying work can be rapidly, conveniently and flexibly achieved, time and labor are saved, the situation that a well lid is attracted unstably in the traditional mode that an electromagnet is used for attracting the well lid is avoided, and waste of electric energy resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal manhole covers, in particular to a municipal manhole cover installation device. Background Art

[0002] In the process of municipal engineering construction, manhole covers will be placed on the specified road sections. Since the weight of the manhole covers is relatively large, it is usually necessary for multiple people to lift them together during their installation, and then install them at the corresponding entrance position. This method is not only time-consuming and labor-intensive, but also very easy to cause dangerous situations such as hitting hands and feet during transportation. Since the weight of the manhole covers is very heavy, they are usually made of ductile iron. In the prior art, there is an auxiliary transportation of manhole covers by using the principle of electromagnets, that is, the magnetic force generated when the electromagnet is energized will adsorb the manhole covers, and then the manhole covers will be transported to the wellhead with the help of a trolley, and then the electromagnet will be broken to achieve the falling of the manhole covers. However, the electromagnet adsorption principle still has poor adaptability, that is, when the manhole covers are made of non-ferromagnetic materials such as stone resin, the electromagnet principle cannot adsorb such manhole covers. At the same time, when the electromagnet is used, it will consume a lot of electricity, resulting in a waste of electric energy resources. The characteristics of its electromagnetic adsorption will also cause the equipment to be bulky and the applicability will be poor.

[0003] To this end, the utility model provides a municipal manhole cover installation device to solve the above-mentioned problems. Utility Model Content

[0004] The utility model provides a municipal manhole cover installation device, which, by arranging a lifting rod and a supporting small rod, can not only quickly, conveniently and flexibly realize the handling work of the manhole cover, saving time and effort, but also avoids the problem of unstable adsorption of the traditional manhole cover by electromagnet adsorption, avoids the waste of electric energy resources, and solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0006] A municipal manhole cover installation device includes a trolley, a handle frame is provided on the trolley, a switch button is provided on the top of one end of the handle frame, a controller is provided on the trolley, two first telescopic rods are provided at both ends of the controller, the two first telescopic rods are connected to a lifting rod, small supporting rods are rotatably installed on the side walls at both ends of the lifting rods, a second telescopic rod is provided inside the lifting rod, the switch button, the first telescopic rod and the second telescopic rod are all electrically connected to the controller, and when the second telescopic rod is extended, the two supporting rods are rotated and opened to be perpendicular to the lifting rod at 90 degrees.

[0007] Preferably, the two supporting rods are rotatably mounted on the side walls at both ends of the lifting rod through the first rotating shaft, and torsion springs are arranged inside the two first rotating shafts, and the torsion directions of the two torsion springs are arranged in mirror symmetry with each other.

[0008] Preferably, L-shaped grooves are symmetrically arranged on the top walls at one end of the two supporting rods, and L-shaped hook locks that cooperate with the L-shaped grooves are symmetrically arranged on the side walls at both ends of the lifting and releasing rods. The two L-shaped hook locks are respectively rotatably installed on the side walls at both ends of the lifting and releasing rods through second rotating shafts, and torsion springs are arranged inside the two second rotating shafts, and the torsion directions of the two torsion springs are mirror-symmetrical to each other.

[0009] Preferably, one end of each of the two L-shaped grooves is provided with a first inclined surface, and one end of each of the two L-shaped hook locks is provided with a second inclined surface respectively contacting and cooperating with the two first inclined surfaces.

[0010] Preferably, two limit blocks are symmetrically arranged inside the lifting rod, and the two limit blocks are arranged below the two small supporting rods.

[0011] Preferably, the two limit blocks are slidably installed inside the lifting rod, and the bottoms of the two limit blocks are both provided with sliding inclined surfaces.

[0012] Preferably, a trigger rod is connected to the second telescopic rod, an extension groove which is plugged into and cooperates with the trigger rod is provided inside the lifting rod, the extension groove is located below the two limit blocks, third inclined surfaces are provided at the bottom of both ends of the trigger rod, and fourth inclined surfaces which are respectively in contact with and cooperate with the two third inclined surfaces are provided at the top of one end of the two limit blocks.

[0013] Compared with the existing technology, the utility model has the following beneficial effects:

[0014] The municipal manhole cover installation device described in the utility model, by providing a lifting rod and a small supporting rod, can not only quickly, conveniently and flexibly realize the handling of the manhole cover, saving time and effort, but also avoids the problem of unstable adsorption of the traditional manhole cover by electromagnet, thus avoiding the waste of electric energy resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the overall structure of a municipal manhole cover installation device of the utility model;

[0016] Figure 2 It is a schematic cross-sectional view of the overall structure of a municipal manhole cover installation device of the utility model;

[0017] Figure 3 For the utility model Figure 2A local enlarged schematic diagram at point A;

[0018] Figure 4 For the utility model Figure 2 A schematic diagram of the state of the supporting rod at the local enlargement at B;

[0019] Figure 5 For the utility model Figure 2 A partial enlargement of the supporting rod at B in another state.

[0020] In the figure: 1. trolley; 2. handle frame; 3. switch button; 4. controller; 5. first telescopic rod; 6. lifting rod; 7. supporting rod; 8. second telescopic rod; 9. first rotating shaft; 10. L-shaped groove; 11. L-shaped hook lock; 12. second rotating shaft; 13. first inclined surface; 14. second inclined surface; 15. limit block; 16. sliding inclined surface; 17. trigger rod; 18. extension groove; 19. third inclined surface; 20. fourth inclined surface. 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] like Figures 1 to 5 As shown, a municipal manhole cover installation device provided by the utility model comprises a trolley 1, a handle frame 2 is provided on the trolley 1, a switch button 3 is provided on the top of one end of the handle frame 2, a controller 4 is provided on the trolley 1, two first telescopic rods 5 are respectively provided at both ends of the controller 4, the two first telescopic rods 5 are connected with a lifting rod 6, and small supporting rods 7 are rotatably installed on the side walls of both ends of the lifting rod 6, and a second telescopic rod 8 is provided inside the lifting rod 6. The switch button 3, the first telescopic rod 5, and the second telescopic rod 8 are all electrically connected to the controller 4. When the second telescopic rod 8 is extended, the two supporting small rods 7 are rotated and opened to be 90 degrees vertical to the lifting rod 6. Since most of the existing manhole covers have a manhole cover opening on the manhole cover surface, when the lifting rod 6 enters the manhole cover along the opening on the manhole cover, the two supporting small rods 7 can block the opening, so that when the first telescopic rod 5 is retracted, the manhole cover can be lifted, thereby realizing the handling of the manhole cover.

[0023] The two supporting rods 7 are respectively rotatably installed on the side walls of the lifting rod 6 at both ends through the first rotating shaft 9. Torsion springs are arranged inside the two first rotating shafts 9. The torsion directions of the two torsion springs are arranged in a mirror-symmetrical manner. That is, when the two supporting rods 7 rotate, one rotates clockwise and the other rotates counterclockwise, and they are mirror-symmetrical to each other and rotate toward the bottom of the limit block 15 at the same time.

[0024] The release principle of the two supporting rods 7 is as follows Figure 3 and Figure 4 As shown, L-shaped grooves 10 are symmetrically arranged on the top walls at one end of the two supporting rods 7, and L-shaped hook locks 11 that cooperate with the L-shaped grooves 10 are symmetrically arranged on the side walls at both ends of the lifting and releasing rod 6. When retracted, the L-shaped hook locks 11 hook the L-shaped grooves 10, and the two L-shaped hook locks 11 are respectively rotatably installed on the side walls at both ends of the lifting and releasing rod 6 through the second rotating shaft 12. Torsion springs are arranged inside the two second rotating shafts 12, and the torsion directions of the two torsion springs are mirror-symmetrically arranged. When released, when the second telescopic rod 8 extends, the piston of the second telescopic rod 8 will squeeze the two L-shaped hook locks 11 at the same time, and the two L-shaped hook locks 11 will rotate 90 degrees when squeezed, thereby releasing the L-shaped hook grooves. At this time, the two supporting rods 7 rotate respectively under the action of the torsion springs to achieve the unfolding effect.

[0025] At the same time, by symmetrically arranging two limit blocks 15 inside the lifting rod 6, the two limit blocks 15 are both arranged below the two supporting rods 7. When the two supporting rods 7 rotate, since the second telescopic rod 8 is still extending, when the trigger rod 17 on the second telescopic rod 8 contacts and squeezes the two limit blocks 15, the two limit blocks 15 slide to the outside of the lifting rod 6, so as to respectively respond to the rotation movement of the two supporting rods 7 and at the same time limit the rotation movement of the supporting rods 7, so that the supporting rods 7 remain perpendicular to the lifting rod 6 at 90 degrees, and at the same time can also play a supporting effect similar to that of a reinforcing rib, thereby realizing the limiting effect on the opening of the manhole cover and the carrying effect of the manhole cover.

[0026] like Figure 4As shown, the movement process of the limit block 15 is as follows: first, a trigger rod 17 is connected to the second telescopic rod 8, and an extension groove 18 is provided inside the lifting rod 6 to be plugged and matched with the trigger rod 17. The extension groove 18 is located below the two limit blocks 15. Third inclined surfaces 19 are provided at the bottoms of both ends of the trigger rod 17, and fourth inclined surfaces 20 are provided at the tops of one ends of the two limit blocks 15 to respectively contact and cooperate with the two third inclined surfaces 19. When the trigger rod 17 contacts the two limit blocks 15, the two third inclined surfaces 19 will be squeezed and matched with the two fourth inclined surfaces 20, so that the two limit blocks 15 slide and extend outward from the two ends of the lifting rod 6 respectively to achieve the limiting support effect on the supporting small rod 7. At the same time, the second telescopic rod 8 always remains in an extended state to prevent the two limit blocks 15 from sliding back into the lifting rod 6 until the handling of the manhole cover is completed.

[0027] When the manhole cover is moved, that is, the manhole cover has been placed on the corresponding wellhead, the lifting rod 6 can be retracted. Figure 5 As shown, first, the two limit blocks 15 are slidably installed inside the lifting rod 6, and the bottom of the two limit blocks 15 is provided with a sliding inclined surface 16. The piston rod of the second telescopic rod 8 first makes a retraction movement. When the second telescopic rod 8 is retracted to the top of the limit block 15, due to the existence of the sliding inclined surface 16, the two limit blocks 15 slide and retract to the inside of the lifting rod 6 under the action of their own gravity. At this time, since the two supporting small rods 7 have lost the limiting support function of the limit blocks 15, they continue to rotate to the bottom of the limit blocks 15 under the action of the torsion spring. At this time, under the retraction movement of the first telescopic rod 5, the entire lifting rod 6 can be retracted from the opening of the manhole cover.

[0028] When the lifting rod 6 is retracted, the staff manually rotates the two supporting rods 7 back to the L-shaped groove 10 and the L-shaped hook lock 11 to engage with each other, and then the next manhole cover transportation work can be carried out again. Since a first inclined surface 13 is provided at one end of the two L-shaped grooves 10, and a second inclined surface 14 is provided at one end of the two L-shaped hook locks 11, which are respectively in contact with the two first inclined surfaces 13, the L-shaped groove 10 can be easily engaged with the L-shaped groove lock.

[0029] In summary, the municipal manhole cover installation device provided by the utility model, by setting a lifting rod 6 and a small supporting rod 7, can not only quickly, conveniently and flexibly realize the transportation of the manhole cover, saving time and effort, but also avoids the traditional method of adsorbing the manhole cover by electromagnets, which has the problem of unstable adsorption, and avoids the waste of electric energy resources.

[0030] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A municipal manhole cover installation device, characterized in that: The invention comprises a trolley (1), wherein the trolley (1) is provided with a handle frame (2), a switch button (3) is provided at the top of one end of the handle frame (2), and a controller (4) is provided on the trolley (1), and two first telescopic rods (5) are respectively provided at both ends of the controller (4), and the two first telescopic rods (5) are connected to a lifting rod (6), and a supporting rod (7) is rotatably installed on the side walls at both ends of the lifting rod (6), and a second telescopic rod (8) is provided inside the lifting rod (6), and the switch button (3), the first telescopic rod (5), and the second telescopic rod (8) are all electrically connected to the controller (4), and when the second telescopic rod (8) is extended, the two supporting rods (7) are rotated and opened to be perpendicular to the lifting rod (6) at 90 degrees.

2. A municipal manhole cover installation device according to claim 1, characterized in that: The two supporting rods (7) are rotatably mounted on the side walls at both ends of the lifting rod (6) through the first rotating shaft (9). Torsion springs are arranged inside the two first rotating shafts (9), and the torsion directions of the two torsion springs are arranged in a mirror-symmetrical manner.

3. A municipal manhole cover installation device according to claim 2, characterized in that: An L-shaped groove (10) is symmetrically arranged on the top wall at one end of the two supporting rods (7), and an L-shaped hook lock (11) cooperating with the L-shaped groove (10) is symmetrically arranged on the side walls at both ends of the lifting rod (6). The two L-shaped hook locks (11) are rotatably installed on the side walls at both ends of the lifting rod (6) through second rotating shafts (12), and torsion springs are arranged inside the two second rotating shafts (12), and the torsion directions of the two torsion springs are arranged in a mirror-symmetrical manner.

4. A municipal manhole cover installation device according to claim 3, characterized in that: One end of each of the two L-shaped grooves (10) is provided with a first inclined surface (13), and one end of each of the two L-shaped hook locks (11) is provided with a second inclined surface (14) respectively contacting and cooperating with the two first inclined surfaces (13).

5. A municipal manhole cover installation device according to claim 4, characterized in that: Two limit blocks (15) are symmetrically arranged inside the lifting rod (6), and the two limit blocks (15) are both arranged below the two small supporting rods (7).

6. A municipal manhole cover installation device according to claim 5, characterized in that: The two limit blocks (15) are slidably mounted inside the lifting rod (6), and the bottoms of the two limit blocks (15) are both provided with sliding inclined surfaces (16).

7. A municipal manhole cover installation device according to claim 6, characterized in that: The second telescopic rod (8) is connected to a trigger rod (17); an extension groove (18) is provided inside the lifting rod (6) and is plugged into and matched with the trigger rod (17); the extension groove (18) is located below the two limit blocks (15); the bottoms of both ends of the trigger rod (17) are provided with third inclined surfaces (19); the tops of one ends of the two limit blocks (15) are provided with fourth inclined surfaces (20) which are respectively in contact with and matched with the two third inclined surfaces (19).

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