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CN-224213377-U - Prevent tong formula manhole cover

CN224213377UCN 224213377 UCN224213377 UCN 224213377UCN-224213377-U

Abstract

The utility model relates to the technical field of manhole covers and discloses an anti-pinch manhole cover which comprises a manhole edge, wherein a first hinge bracket is connected to the rear part of the manhole edge, a cross arm is inserted into the first hinge bracket through a rotating shaft, a manhole cover plate is arranged at the middle position of the bottom of the cross arm, side plates are welded on the left side and the right side of the outside of the manhole cover plate, stand columns are arranged on the left side and the right side of the top of a bottom plate through hinge lugs, bearing brackets are arranged at the top ends of the stand columns through hinge lugs, and a jack hole is formed in the middle position of the top of a limiting seat. This prevent tong formula manhole cover drives the stand motion through promoting the supporting seat to can make stand and supporting seat become the standing state from horizontal folding state, make the manhole apron unable closure under the blockking of curb plate and supporting seat, avoid the manhole apron to be in the use because of the tong that closes the lid and smash the phenomenon of injury, promoted the safety in utilization of manhole cover.

Inventors

  • WANG KUN

Assignees

  • 南京晶云船舶配件有限公司

Dates

Publication Date
20260508
Application Date
20250603

Claims (6)

  1. 1. A pinch-proof manhole cover, comprising: The manhole cover plate comprises a manhole edge (1), wherein a first hinge bracket (2) is connected to the rear part of the manhole edge (1), a cross arm (3) is inserted into the first hinge bracket (2) through a rotating shaft, and a manhole cover plate (4) is arranged at the middle position of the bottom of the cross arm (3); The through groove (31) is formed in the front side of the interior of the cross arm (3), a second hinge bracket (6) is connected to the middle position of the front part of the manhole edge (1), a screw rod (7) is inserted into the second hinge bracket (6) through a rotating shaft, the upper part of the screw rod (7) is clamped in the through groove (31), and a limit cap (8) is screwed on the top of the screw rod (7); The side plates (9) are welded on the left and right sides of the outside of the manhole cover plate (4), clamping seats (10) are arranged on the left and right sides of the outside of the manhole edge (1) and at positions corresponding to the side plates (9), the outer sides of the clamping seats (10) are connected with assembling frames (11), and a bottom plate (12) is inserted into the assembling frames (11); The upright posts (13) are arranged on the left side and the right side of the top of the bottom plate (12) through hinge lugs, the top ends of the upright posts (13) are respectively provided with a bearing seat (14) through hinge lugs, and the front sides of the bottoms of the bearing seats (14) are provided with a mounting group (15); The limiting seat (17) is sleeved outside the upright post (13) at the front side, an arc-shaped end face (171) is arranged at the front side of the limiting seat (17), a handle (16) is inserted into the assembling sleeve (15), springs (18) are respectively inserted into the left side and the right side of the interior of the handle (16), a plug pin (19) is connected to the bottom end of the handle (16), and a jack (23) is formed in the middle position of the top of the limiting seat (17).
  2. 2. The anti-pinch manhole cover of claim 1, wherein the top of the manhole edge (1) is provided with an annular gasket (5), and rubber gaskets are clamped at positions corresponding to the annular gasket (5) on the outer side of the bottom of the manhole cover plate (4).
  3. 3. The anti-pinch manhole cover according to claim 1, wherein screw holes (111) are formed in the left side and the right side of the inside of the assembly frame (11) and the inside of the bottom plate (12), the number of the screw holes (111) is 2-6, and bolts (112) are screwed in the inside of the screw holes (111).
  4. 4. The anti-pinch manhole cover according to claim 1, wherein the top ends of the springs (18) are connected with corresponding positions of the top of the inner cavity of the assembling sleeve (15), the shape of the handle (16) is L-shaped, and a shaft sleeve (20) is arranged on the left side of the outer part of the assembling sleeve (15).
  5. 5. The anti-pinch manhole cover of claim 4, wherein a limiting pin (21) is inserted into the shaft sleeve (20), a deflector rod is arranged at the left end of the limiting pin (21), and a rubber sleeve is sleeved outside the limiting pin (21).
  6. 6. The anti-pinch manhole cover according to claim 5, wherein limiting holes (22) are formed in the inner lower sides of the assembling sleeve (15) and the grip (16), and the diameter of the limiting holes (22) is matched with the diameter of the limiting pins (21).

Description

Prevent tong formula manhole cover Technical Field The utility model relates to the technical field of manhole covers, in particular to a hand-clamping-prevention manhole cover. Background The manhole cover is an important part widely applied to various infrastructure construction, and has the main functions of covering and sealing the manhole so as to ensure the safety of underground facilities, maintenance and normal use of a maintenance channel. Common manhole covers are typically composed of a simple metal or composite cover plate and manhole edge structure. The design purpose of apron mainly is to provide a planar structure that can cover the manhole opening, prevents that personnel from accidentally falling into the manhole, prevents debris entering manhole inside simultaneously and influences the normal operating of underground facilities. The manhole edge structure is used for supporting the cover plate, so that the placement stability of the cover plate is ensured. However, the cover plate of the manhole cover is connected with the edge of the manhole through the hinge structure, and after the locking structure is unlocked, the cover plate can be controlled to open and close, but because the opened cover plate is supported only by virtue of the hinge shaft, when a worker opens the manhole cover to inspect or maintain underground facilities, once the worker is subjected to external interference (such as blowing, collision and the like), the cover plate can suddenly fall, injure the worker below or clamp hands, seriously threaten the life safety of the worker, reduce the use safety of the manhole cover, and not meet the working requirement of the manhole cover. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a hand-clamping-prevention manhole cover, which solves the technical problems that the cover plate can drop suddenly and injure lower staff or cause the phenomenon of clamping hands when being subjected to external interference (such as wind blowing, collision and the like) once being supported by a hinged shaft only after being opened. (II) technical scheme In order to achieve the purpose, the utility model provides the following technical scheme that the anti-pinch manhole cover comprises: A manhole edge, the rear part of the manhole edge is connected with a first hinge bracket, a cross arm is inserted into the first hinge bracket through a rotating shaft, and a manhole cover plate is arranged at the middle position of the bottom of the cross arm; The through groove is formed in the front side of the interior of the cross arm, a second hinge bracket is connected to the middle position of the front part of the edge of the manhole, a screw is inserted into the second hinge bracket through a rotating shaft, the upper part of the screw is clamped in the through groove, and a limit cap is screwed on the top of the screw; The side plates are welded on the left and right sides of the outer part of the manhole cover plate, clamping seats are arranged on the left and right sides of the outer part of the manhole edge and correspond to the side plates, the outer sides of the clamping seats are connected with assembly frames, and a bottom plate is inserted into the assembly frames; The upright posts are arranged on the left side and the right side of the top of the bottom plate through hinge lugs, the top ends of the upright posts are respectively provided with a bearing seat through hinge lugs, and the front sides of the bottoms of the bearing seats are provided with a mounting group; The limiting seat is sleeved outside the upright post at the front side, an arc-shaped end face is arranged at the front side of the limiting seat, a handle is inserted into the assembling sleeve, springs are inserted into the left side and the right side of the handle, a plug pin is connected to the bottom end of the handle, and a jack is formed in the middle of the top of the limiting seat. Preferably, the top of manhole edge has installed the annular packing ring, the bottom outside of manhole cover plate has all the joint rubber packing ring with the corresponding position of annular packing ring, and annular packing ring and the rubber packing ring that adds and establish make manhole cover plate and manhole edge more inseparable when closing the lid. Preferably, screw holes are formed in the left side and the right side of the assembly frame and the bottom plate, the number of the screw holes is 2-6, bolts are screwed into the screw holes, and the bottom plate is convenient to assemble and disassemble through the additionally arranged bolts. Preferably, the top ends of the springs are connected with corresponding positions of the top of the inner cavity of the assembly kit, the shape of the handle is L-shaped, and the shaft sleeve is arranged on the left side of the outer part of the assembly kit. Preferably, a limiting pin is inserted