CN-224209830-U - Auxiliary dismounting device for manhole cover plate

CN224209830UCN 224209830 UCN224209830 UCN 224209830UCN-224209830-U

Abstract

The utility model relates to an auxiliary dismounting device for a manhole cover plate, and relates to the technical field of overhaul. The auxiliary dismounting device comprises a base, a connecting rod, a hoop assembly and a hoop assembly, wherein the base is fixedly arranged on one side of a manhole, one end of the connecting rod is rotatably connected with the base, the other end of the connecting rod is connected with the displacement assembly, the hoop assembly is used for clamping a manhole cover plate to enable the axis of the manhole cover plate to coincide with the first axis of the hoop assembly, and when the connecting rod rotates to a first position, the displacement assembly can drive the hoop assembly to move along a first straight line to enable the first axis to coincide with the axis direction of the manhole. The manhole cover plate is supported by the auxiliary dismounting device, the connecting rod can be rotated and the displacement assembly can be regulated, the manhole cover plate is positioned in an auxiliary mode, compared with the manual positioning manhole cover plate, the positioning difficulty of the manhole cover plate is reduced, the manhole cover plate does not need to be lifted manually during positioning, and the labor intensity of dismounting personnel is reduced.

Inventors

LIU TAO
LI TINGTING
XU HONG
WANG YAN
Luo Liubangdai
LI PAN

Assignees

中国石油化工股份有限公司
中国石油化工股份有限公司西南油气分公司

Dates

Publication Date: 20260508
Application Date: 20250508

Claims (10)

1. An auxiliary dismounting device for a manhole cover plate, characterized in that it comprises: a base fixedly arranged at one side of the manhole; A connecting rod with one end rotatably connected with the base and the other end connected with a displacement assembly, and The hoop assembly is connected with the displacement assembly and is used for clamping the manhole cover plate, so that the axis of the manhole cover plate is coincident with the first axis of the hoop assembly; When the connecting rod rotates to a first position, the displacement assembly can drive the hoop assembly to move along a first straight line, so that the first axis coincides with the axis direction of the manhole.
2. The auxiliary dismounting device as claimed in claim 1, wherein, The first axis is perpendicular to the first line, the connecting rod can rotate around a second axis relative to the base, the second axis is parallel to the first line, and the distance between the second axis and the axis of the manhole is equal to the distance between the second axis and the first axis.
3. The auxiliary dismounting device as claimed in claim 2, wherein, The connecting rod comprises a first rod portion and a second rod portion, wherein the first rod portion extends along the vertical direction, the second rod portion extends along the horizontal direction, the bottom end of the first rod portion is inserted into the base to be rotationally connected with the base, the top end of the first rod portion is connected with the second rod portion, the displacement assembly is mounted on one side, away from the first rod portion, of the second rod portion, and the hoop assembly is located below the second rod portion, and the second axis is the center line of the first rod portion.
4. The auxiliary dismounting device as claimed in claim 3, wherein, The base is internally provided with a bearing, and the first rod part is inserted into the bearing to be in running fit with the base.
5. An auxiliary dismounting device as claimed in any one of claims 1-4, wherein, The hoop assembly comprises a first hoop body, a second hoop body and a fastener, one end of the first hoop body is rotationally connected with the second hoop body, and the other end of the first hoop body is detachably connected with the second hoop body through the fastener so as to be tightly attached to the circumferential outer wall of the manhole cover plate.
6. The auxiliary dismounting device as claimed in claim 5, wherein, The first hoop body is provided with a first blocking piece, one end of the first blocking piece is connected with the first hoop body, and the other end of the first blocking piece extends towards the second hoop body so as to block the outer end face of the manhole cover plate.
7. The auxiliary dismounting device as claimed in claim 6, wherein, The first hoop body is provided with a plurality of first blocking pieces, and the first blocking pieces are arranged at intervals along the circumferential direction of the first hoop body.
8. The auxiliary dismounting device as claimed in claim 6, wherein, The first hoop body is further provided with a second blocking piece, one end of the second blocking piece is connected with the first hoop body, the other end of the second blocking piece extends towards the second hoop body to block the inner end face of the manhole cover plate, the first blocking piece and the second blocking piece are arranged at intervals along the first axis, and the distance between the first blocking piece and the second blocking piece is larger than or equal to the thickness of the manhole cover plate.
9. The auxiliary dismounting device as claimed in claim 6, wherein, The second hoop body is provided with a third blocking piece which is arranged opposite to the first blocking piece, one end of the third blocking piece is connected with the second hoop body, the other end of the third blocking piece extends towards the first hoop body, and the blocking surface of the third blocking piece and the blocking surface of the first blocking piece are located in the same plane.
10. An auxiliary dismounting device as claimed in any one of claims 1-4, wherein, The displacement assembly comprises an adjusting rod, an adjusting nut and a rotation limiting piece, the bottom of the adjusting rod is fixedly connected with the clamping assembly, the rotation limiting piece is fixed with the connecting rod, and the rotation limiting piece is configured to limit the adjusting rod to rotate relative to the connecting rod; the connecting rod is provided with a mounting hole with a first straight line axis, the upper part of the adjusting rod passes through the mounting hole and is in threaded connection with the adjusting nut, the bottom surface of the adjusting nut is abutted against the top surface of the connecting rod, and when the adjusting nut is screwed, the adjusting rod can linearly move along the axis of the mounting hole.

Description

Auxiliary dismounting device for manhole cover plate Technical Field The utility model relates to the technical field of maintenance of distillation systems, in particular to an auxiliary dismounting device for a manhole cover plate. Background In distillation systems, a manhole cover plate is provided at the manhole. Since the manhole cover is exposed to the external environment, it is necessary to periodically repair the manhole cover and replace the manhole cover with a new one when the manhole cover is damaged. The working area at the manhole is generally smaller, so that the replacement work of the manhole cover plate is often required to be completed by one person alone. But the quality of manhole cover plate is heavier, and the in-process of installation manhole cover plate not only needs the stable manhole cover plate that lifts up of operating personnel, still needs to align the mounting hole of manhole cover plate with the corresponding hole of manhole, and the difficulty when maintainer operates, the security risk is great. Disclosure of utility model The utility model provides an auxiliary dismounting device for a manhole cover plate, which is used for reducing the dismounting difficulty of the manhole cover plate. The utility model provides an auxiliary dismounting device for a manhole cover plate, which comprises a base, a connecting rod, a hoop assembly and a hoop assembly, wherein the base is fixedly arranged on one side of a manhole, one end of the connecting rod is rotationally connected with the base, the other end of the connecting rod is connected with the displacement assembly, the hoop assembly is connected with the displacement assembly and is used for clamping the manhole cover plate to enable the axis of the manhole cover plate to coincide with the first axis of the hoop assembly, and when the connecting rod rotates to a first position, the displacement assembly can drive the hoop assembly to move along the first straight line to enable the first axis to coincide with the axis direction of the manhole. In one embodiment, the first axis is perpendicular to the first axis, the connecting rod is rotatable relative to the base about a second axis, the second axis is parallel to the first axis, and a distance between the second axis and an axis of the manhole is equal to a distance between the second axis and the first axis. In one embodiment, the connecting rod comprises a first rod portion and a second rod portion, the first rod portion extends along a vertical direction, the second rod portion extends along a horizontal direction, the bottom end of the first rod portion is inserted into the base to be rotationally connected with the base, the top end of the first rod portion is connected with the second rod portion, the displacement assembly is mounted on one side, away from the first rod portion, of the second rod portion, and the hoop assembly is located below the second rod portion, wherein the second axis is the center line of the first rod portion. In one embodiment, a bearing is mounted in the base, and the first rod portion is inserted into the bearing to be in a rotational fit with the base. In one embodiment, the hoop assembly comprises a first hoop body, a second hoop body and a fastener, one end of the first hoop body is rotationally connected with the second hoop body, and the other end of the first hoop body is detachably connected with the second hoop body through the fastener so as to be tightly attached to the circumferential outer wall of the manhole cover plate. In one embodiment, a first blocking piece is arranged on the first hoop body, one end of the first blocking piece is connected with the first hoop body, and the other end extends towards the second hoop body to block the outer end face of the manhole cover plate. In one embodiment, the first hoop body is provided with a plurality of first blocking pieces, and the first blocking pieces are arranged at intervals along the circumferential direction of the first hoop body. In one embodiment, the first hoop body is further provided with a second blocking member, one end of the second blocking member is connected to the first hoop body, the other end of the second blocking member extends towards the second hoop body to block the inner end face of the manhole cover plate, the first blocking member and the second blocking member are arranged at intervals along the first axis, and the distance between the first blocking member and the second blocking member is greater than or equal to the thickness of the manhole cover plate. In one embodiment, a third blocking piece is arranged on the second hoop body, the third blocking piece is arranged opposite to the first blocking piece, one end of the third blocking piece is connected with the second hoop body, the other end of the third blocking piece extends towards the first hoop body, and the blocking surface of the third blocking piece and the blocking surface of the firs