Detachable moving device for opening well lid

Abstract

The utility model discloses a detachable moving device for opening a well lid, belongs to the technical field of well lid opening devices, and solves the problem that a person inconveniently opens and moves the well lid. The device comprises a bottom frame, universal wheels are arranged at the four corners of the bottom of the bottom frame, hook bolts are fixed to the four corners of the top of the bottom frame, and the four hook bolts are used for hooking the four corners of a net respectively; lifting stand columns are vertically fixed to the two opposite edges of the bottom frame correspondingly, the ends of the two lifting stand columns are fixedly connected with the two ends of a cross beam correspondingly, and a lifting hoist is detachably arranged on the cross beam and used for lifting a well lid. The well lid can be conveniently opened through the lifting hoist, the well lid can be conveniently detached from the well base, and the pocket net can provide certain supporting force for the well lid and prevent the well lid from shaking in the moving process. The lifting stand column can adjust the height of the lifting hoist according to the lifting height requirement of the well lid.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover opening devices, in particular to a detachable mobile device for opening a manhole cover. Background Art

[0002] At present, when installing manhole covers for various residential, commercial and complex small municipal pipe network inspection wells, most of them use square stainless steel invisible manhole covers that are consistent with the paving stone. The stainless steel invisible manhole cover forms a whole with the surrounding area, which is indeed neat and beautiful, but it also brings the disadvantages of heavy manhole covers, large size, heavy weight, and difficult to open, which is extremely inconvenient for the inspection and dredging of underground pipe networks.

[0003] When opening a manhole cover without a connection device, if the workers at both ends use uneven force when using the manhole cover opening tool, there is a risk that the manhole cover cannot be lifted horizontally, and the manhole cover may get stuck in the well seat. Manhole covers with larger load-bearing capacity require the cooperation of multiple people. If the manhole cover opening tool is used with uneven force, the manhole cover may slip off the tool.

[0004] In order to solve the above problems, a Chinese patent with the announcement number CN113074782B discloses an automatic detection device and a test method for a manhole cover, wherein the manhole cover opening assembly includes a beam frame, an electric hoist, a third frame, and a hook, wherein the electric hoist is suspended on the third frame, and the hook is arranged at the bottom of the electric hoist. Although the manhole cover opening assembly can raise the manhole cover horizontally by starting the electric hoist to quickly separate the manhole cover from the well seat, the height of the beam frame of the manhole cover opening assembly is fixed, and the height of the electric hoist cannot be changed, and the manhole cover is easy to shake when the electric hoist moves the manhole cover. Utility Model Content

[0005] In view of the above problems in the prior art, the utility model provides a detachable moving device for opening a manhole cover, which solves the problem that it is inconvenient for personnel to open and move the manhole cover.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A detachable mobile device for opening a manhole cover is provided, comprising a bottom frame, wherein universal wheels are arranged on the four bottom corners of the bottom frame, hook bolts are fixed on the four top corners of the bottom frame, and the four hook bolts are respectively used to hook the four corners of a net; lifting columns are vertically fixed on two opposite sides of the bottom frame, and the ends of the two lifting columns are respectively fixedly connected to the two ends of a cross beam, and a lifting hoist is detachably arranged on the cross beam, and the lifting hoist is used to lift the manhole cover.

[0008] The working principle of this solution is as follows: the worker moves the bottom frame onto the manhole cover, locks the universal wheel, lifts the manhole cover with the hoist, hangs the net on the bottom frame, lifts the manhole cover down into the net with the hoist, and finally opens the universal wheel and pushes the lifting column to move the bottom frame to the side of the manhole seat. The net can provide a certain support force for the manhole cover and prevent the manhole cover from shaking during movement. The setting of the lifting column can adjust the height of the lifting hoist according to the lifting height requirements of the manhole cover.

[0009] Furthermore, the stud ends of the four hook bolts are welded to the bottom frame, and the nuts of the four hook bolts are arranged vertically upward. The nuts of the hook bolts are directly used as hooks, which has lower manufacturing costs than re-processing a hook.

[0010] Furthermore, the lifting column is fixedly connected to the bottom frame through a connecting seat assembly, the connecting seat assembly includes a first connecting seat and a second connecting seat, the first connecting seat is fixed to the bottom end of the lifting column, the second connecting seat is fixed to the top end of the bottom frame, and the first connecting seat and the second connecting seat are bolted. By splitting the first connecting seat and the second connecting seat, the lifting column and the bottom frame can be disassembled, which is convenient for storage and reduces space occupation.

[0011] Furthermore, the first connection seat and the second connection seat are both rectangular plate structures, and the four long sides of the first connection seat and the second connection seat are each provided with a plurality of first bolt holes matched with the first bolts. The plurality of first bolts ensures the bolt connection strength between the first connection seat and the second connection seat.

[0012] Furthermore, the widths of the first connecting seat and the second connecting seat are the same and are both greater than the width of the rod body on the bottom frame.

[0013] Furthermore, the lifting column includes a first column welded to the first connecting seat, a second column is slidably arranged in the inner cavity of the first column, and a plurality of second bolt holes cooperating with second bolts are vertically penetrated on the outer walls of the first column and the second column. The height of the second column in the first column is adjusted, and then a plurality of second bolts are respectively inserted into a plurality of overlapping second bolt holes and nuts are put on, so that the height adjustment is achieved while ensuring the connection strength between the first column and the second column.

[0014] Furthermore, ribs are welded at the welding points between the two ends of the cross beam and the two second columns, and the front projection of the ribs is in the shape of a right triangle. The two right-angled sides of the ribs are respectively welded to the cross beam and the second column, thereby improving the connection strength between the cross beam and the second column.

[0015] Furthermore, a lifting ring is fixed to the bottom side of the middle part of the crossbeam, and the top of the lifting hoist is hung on the lifting ring.

[0016] Furthermore, the hook of the lifting hoist is provided with four iron chains respectively used for hooking the four corners of the manhole cover.

[0017] Furthermore, hanging ropes are arranged at the four corners of the bag net, and each hanging rope is provided with a hanging ring. The four hanging rings are hung on four hook bolts respectively.

[0018] The utility model discloses a detachable mobile device for opening a manhole cover, and its beneficial effects are:

[0019] The utility model has the advantages of good stability, not easy to damage, simple operation, convenient movement, time and labor saving, detachable, convenient storage, space saving, simple structure, convenient maintenance, etc. It is convenient to open the manhole cover by lifting the hoist, and it is convenient to remove the manhole cover from the manhole seat. The net can provide a certain support force for the manhole cover and prevent the manhole cover from shaking during movement. And the setting of the lifting column can adjust the height of the lifting hoist according to the lifting height requirements of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a top view of the mobile and detachable device;

[0021] Figure 2 is a front view of the mobile and detachable device;

[0022] Figure 3 It is a structural schematic diagram of the connecting seat assembly;

[0023] Among them: 1. bottom frame; 2. universal wheel; 3. hook bolt; 4. net; 5. lifting column; 51. first column; 52. second column; 53. second bolt; 6. crossbeam; 61. lifting ring; 62. rib plate; 7. lifting hoist; 8. iron chain; 9. connecting seat assembly; 91. first connecting seat; 92. second connecting seat; 93. first bolt. DETAILED DESCRIPTION

[0024] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0025] refer to Figure 1 and Figure 2 The present embodiment provides a detachable mobile device for opening a manhole cover, including a bottom frame 1, universal wheels 2 located at the four bottom corners of the bottom frame 1, hook bolts 3 located at the four bottom corners of the bottom frame 1, a net 4 hung on the hook bolts 3, a lifting column 5 fixed on the opposite sides of the bottom frame 1, a crossbeam 6 on the lifting column 5, and a lifting hoist 7 on the crossbeam 6.

[0026] The bottom frame 1 is in a square frame structure, and hook bolts 3 are fixed on the four corners of the top of the bottom frame 1. The four hook bolts 3 are respectively used to hook the four corners of the bag net 4. Hanging ropes are provided at the four corners of the bag net 4. Each hanging rope is provided with a hanging ring, and the four hanging rings are respectively hung on the four hook bolts 3. The bag net 4 can provide a certain support force for the manhole cover and prevent the manhole cover from shaking greatly during movement.

[0027] The stud ends of the four hook bolts 3 are welded on the bottom frame 1, and the nuts of the four hook bolts 3 are arranged vertically upward. The nuts of the hook bolts 3 are directly used as hooks, which has lower production costs than re-processing a hook.

[0028] Lifting columns 5 are vertically fixed on two opposite sides of the bottom frame 1, and the ends of the two lifting columns 5 are respectively fixedly connected to the two ends of the crossbeam 6. The setting of the lifting columns 5 can adjust the height of the lifting hoist 7 according to the lifting height requirement of the manhole cover.

[0029] A lifting hoist 7 is detachably provided on the cross beam 6, and the lifting hoist 7 is used to lift the manhole cover. Specifically, a lifting ring 61 is fixed to the bottom side of the middle part of the cross beam 6, and the top of the lifting hoist 7 is hung on the lifting ring 61.

[0030] The hook of the lifting hoist 7 hoist rope is provided with four iron chains 8 respectively used for hooking the four corners of the manhole cover, and a chain hook can be fixed on the free end of each iron chain 8. In this embodiment, the lifting hoist 7 can be an electric hoist or a manual hoist, which can be selected according to the distance of the actual power supply location and the manpower situation.

[0031] The working principle of this solution is as follows: the worker moves the bottom frame 1 onto the manhole cover, locks the universal wheel 2, lifts the manhole cover with the lifting hoist 7, then hangs the net 4 on the bottom frame 1, lifts the manhole cover down into the net 4 with the lifting hoist 7, and finally opens the universal wheel 2, and pushes the lifting column 5 to move the bottom frame 1 to the side of the well seat.

[0032] In this embodiment, the bottom frame 1, the cross beam 6 and the lifting column 5 are made of galvanized square tubes, the connecting seat assembly 9 and the rib 62 are made of Q235 steel plates, and the net 4 is made of nylon rope.

[0033] Specifically, the lifting column 5 is fixedly connected to the bottom frame 1 through the connecting seat assembly 9, and the connecting seat assembly 9 includes a first connecting seat 91 and a second connecting seat 92. The first connecting seat 91 is fixed to the bottom end of the lifting column 5, and the second connecting seat 92 is fixed to the top end of the bottom frame 1. The first connecting seat 91 and the second connecting seat 92 are bolted. By splitting the first connecting seat 91 and the second connecting seat 92, the lifting column 5 and the bottom frame 1 can be disassembled, which is convenient for storage and reduces the occupied space.

[0034] refer to Figure 2 and Figure 3 The first connection seat 91 and the second connection seat 92 are both rectangular plate-shaped structures, and the four long sides of the first connection seat 91 and the second connection seat 92 are provided with a plurality of first bolt holes matched with the first bolts 93. The plurality of first bolts 93 ensure the bolt connection strength of the first connection seat 91 and the second connection seat 92.

[0035] To facilitate fixation, the first connection seat 91 and the second connection seat 92 have the same width and are both greater than the width of the rod body on the bottom frame 1 .

[0036] As a specific structure of the lifting column 5, the lifting column 5 includes a first column 51 welded to the first connecting seat 91, a second column 52 is slidably arranged in the inner cavity of the first column 51, and a plurality of second bolt holes cooperating with the second bolts 53 are vertically penetrated on the outer walls of the first column 51 and the second column 52. The height of the second column 52 in the first column 51 is adjusted, and then a plurality of second bolts 53 are respectively inserted into a plurality of overlapping second bolt 53 holes and nuts are put on, so that the height adjustment is achieved while ensuring the connection strength between the first column 51 and the second column 52.

[0037] As a further solution of this embodiment, ribs 62 are welded at the welding points between the two ends of the cross beam 6 and the two second columns 52, and the front projection of the ribs 62 is in the shape of a right triangle. The two right-angled sides of the ribs 62 are respectively welded to the cross beam 6 and the second columns 52, thereby improving the connection strength between the cross beam 6 and the second columns 52.

[0038] In summary, this solution facilitates opening the manhole cover by lifting the hoist 7, and facilitates removing the manhole cover from the manhole seat, saving time and effort. The net 4 can provide a certain support force for the manhole cover and prevent the manhole cover from shaking during movement. And the setting of the lifting column 5 can adjust the height of the lifting hoist 7 according to the lifting height requirement of the manhole cover.

[0039] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A detachable mobile device for opening a manhole cover, characterized in that: It comprises a bottom frame (1), wherein the four bottom corners of the bottom frame (1) are provided with universal wheels (2), and the four top corners of the bottom frame (1) are fixed with hook bolts (3), and the four hook bolts (3) are respectively used to hook the four corners of the bag net (4); Lifting columns (5) are vertically fixed on two opposite sides of the bottom frame (1), and the ends of the two lifting columns (5) are respectively fixedly connected to the two ends of the cross beam (6). A lifting hoist (7) is detachably provided on the cross beam (6), and the lifting hoist (7) is used to lift the manhole cover.

2. The detachable mobile device for opening a manhole cover according to claim 1, characterized in that: The stud ends of the four hook bolts (3) are all welded to the bottom frame (1), and the nuts of the four hook bolts (3) are arranged vertically upwards.

3. The detachable mobile device for opening a manhole cover according to claim 1, characterized in that: The lifting column (5) is fixedly connected to the bottom frame (1) via a connecting seat assembly (9); the connecting seat assembly (9) comprises a first connecting seat (91) and a second connecting seat (92); the first connecting seat (91) is fixed to the bottom end of the lifting column (5); the second connecting seat (92) is fixed to the top end of the bottom frame (1); the first connecting seat (91) and the second connecting seat (92) are bolted together.

4. The detachable mobile device for opening a manhole cover according to claim 3, characterized in that: The first connecting seat (91) and the second connecting seat (92) are both rectangular plate-shaped structures, and a plurality of first bolt holes cooperating with the first bolts (93) are provided on the four long sides of the first connecting seat (91) and the second connecting seat (92).

5. The detachable moving device for opening a manhole cover according to claim 4, characterized in that: The widths of the first connecting seat (91) and the second connecting seat (92) are the same and are both greater than the width of the rod body on the bottom frame (1).

6. The detachable mobile device for opening a manhole cover according to claim 3, characterized in that: The lifting column (5) comprises a first column (51) welded to the first connecting seat (91), a second column (52) is slidably arranged in the inner cavity of the first column (51), and a plurality of second bolt holes cooperating with second bolts (53) are vertically penetrated on the outer walls of the first column (51) and the second column (52).

7. The detachable moving device for opening a manhole cover according to claim 6, characterized in that: Ribs (62) are welded at the welding points between the two ends of the crossbeam (6) and the two second upright columns (52), and the front projection of the ribs (62) is in the shape of a right-angled triangle.

8. The detachable mobile device for opening a manhole cover according to claim 1, characterized in that: A lifting ring (61) is fixed to the bottom side of the middle part of the crossbeam (6), and the top of the lifting hoist (7) is hung on the lifting ring (61).

9. The detachable mobile device for opening a manhole cover according to claim 1, characterized in that: The hook of the lifting hoist (7) is provided with four iron chains (8) respectively used for hooking the four corners of the manhole cover.

10. The detachable moving device for opening a manhole cover according to claim 1, characterized in that: Hanging ropes are arranged at the four corners of the bag net (4), and each of the hanging ropes is provided with a hanging ring.

Images