Hinge type inspection well cover

Abstract

The utility model relates to a hinge type inspection well cover. The technical problem to be solved by the utility model is to provide a hinge type inspection well cover. According to the technical scheme, the inspection well cover comprises an inspection well cover base, an inspection well cover plate, a turnover adjusting piece and a connecting shaft assembly, the connecting shaft assembly comprises a connecting shaft, a cover plate turnover protruding block is arranged at one end of the inspection well cover plate, a cover plate hinge hole is formed in the side portion of the cover plate turnover protruding block, the inspection well cover base comprises a base bearing portion, a base through hole is formed in the base bearing portion, and the base through hole is connected with the cover plate turnover protruding block. The base bearing part is provided with a base inner surrounding edge at the base through hole, and the inner wall of the base inner surrounding edge is provided with a base inner retaining edge. The inspection well cover has the advantages that due to the design of the overturning adjusting piece, the inspection well cover plate is allowed to be completely separated from ground blocking, the overturning angle is increased to 180 degrees from traditional 90 degrees, the inspection well cover plate is parallel to the ground after being completely unfolded, and a barrier-free operation space is provided for maintainers; the inspection well cover plate and the inspection well cover base hinge are not stressed and are not easy to damage.

Description

Technical Field

[0001] This utility model relates to a hinged manhole cover. Background Technology

[0002] Manhole covers are facilities that cover the openings of underground pipeline inspection wells, protecting the entrances of underground pipelines (such as sewers, electricity, communications, gas, etc.) and facilitating maintenance, cleaning, and troubleshooting by personnel. A manhole cover generally consists of a base and a cover plate. The cover plate is foldably connected to the base, with the base buried underground and the cover plate exposed above ground. Currently, existing manhole covers can only rotate a maximum of 90 degrees because the ground obstructs the cover plate's position. This insufficient rotation angle causes the cover to obstruct the ground when opened, affecting maintenance personnel's overall observation and operation of the underground space. Furthermore, the limited 90-degree rotation causes stress concentration on the hinge between the cover plate and the base, easily accelerating hinge deformation and wear, and shortening service life. Improvements and optimizations are proposed to address these issues. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a hinged manhole cover.

[0004] The technical solution adopted by this utility model of hinged manhole cover is characterized by comprising a manhole cover base, a manhole cover plate, a flip-adjusting component, and a connecting shaft assembly. The connecting shaft assembly includes a connecting shaft. One end of the manhole cover plate is provided with a flip-up protrusion, and the side of the flip-up protrusion is provided with a hinge hole. The manhole cover base includes a base receiving part, and a base through hole is provided inside the base receiving part. An inner perimeter of the base is provided at the base through hole. The inner wall of the inner perimeter of the base is provided with an inner stop for limiting the insertion of the manhole cover plate. A flip-connecting seat is provided outside the inner perimeter of the base receiving part. A main groove of the flip-connecting seat is provided in the middle of the flip-connecting seat and communicates with the base through hole. Adjusting grooves of the flip-connecting seat are provided on both sides of the main groove of the flip-connecting seat. The flip-adjusting component includes an adjusting component seat body placed inside the flip-connecting seat. The adjusting component seat is provided with an adjusting component seat limiting groove for limiting the flipping protrusion of the cover plate. The upper parts of both sides of the adjusting component seat are bent vertically in sequence to form an adjusting component stop covering the adjusting groove of the docking seat and an adjusting component fixing part placed in the adjusting groove of the docking seat. The two side walls of the adjusting component seat are provided with longitudinally arranged adjusting component seat waist-shaped holes. The cover plate hinge hole and the adjusting component seat waist-shaped hole are connected by the connecting shaft. The rear end of the adjusting component seat is provided with a flipping clearance opening for flipping the manhole cover plate 180 degrees. The adjusting component fixing part is provided with a fixing part waist-shaped hole corresponding to the adjusting component seat waist-shaped hole. The side wall of the flipping docking seat is provided with a docking seat connecting hole communicating with the fixing part waist-shaped hole. The fixing part waist-shaped hole and the docking seat connecting hole are connected by bolts.

[0005] The connecting shaft assembly also includes pins, and the connecting shaft passes through the hinge hole of the cover plate and the waist-shaped hole of the adjusting member seat, with both ends locked by the pins.

[0006] It also includes a height support member placed in the adjusting groove of the docking seat. The height support member includes a support member driving part that fits against the bottom of the adjusting member stop, a support member adjusting head provided above the support member driving part, and a support member screw provided below the support member driving part. The bottom of the adjusting groove of the docking seat is provided with a docking seat threaded hole that connects with the support member screw. The adjusting member stop is provided with an adjusting member clearance hole for the adjusting member adjusting head to make way when adjusting.

[0007] The support member has drive blocks at both ends for abutting against the bottom of the adjuster.

[0008] The base receiving part is provided with base mounting holes and base reinforcing ribs at intervals around the arc.

[0009] The advantages of this new type of hinged manhole cover are: the design of the flip-adjustment component allows the manhole cover to be completely detached from the ground obstruction, and the flip angle is increased from the traditional 90° to 180°. After the manhole cover is fully unfolded, it is parallel to the ground, providing unobstructed operating space for maintenance personnel; the hinges of the manhole cover and the manhole cover base are not subjected to force, are not easily damaged, and have a longer service life. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of the hinged manhole cover of this utility model;

[0012] Figure 2 This is an exploded view of the hinged manhole cover of this utility model;

[0013] Figure 3 This is a structural schematic diagram of the connecting shaft assembly of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the manhole cover base of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the manhole cover plate of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the flip-adjusting component of this utility model;

[0017] Figure 7 This is a structural schematic diagram of the height support component of this utility model. Detailed Implementation

[0018] like Figure 1-7As shown, the hinged manhole cover of this utility model includes a manhole cover base 1, a manhole cover plate 2, a flip adjustment component 3, and a connecting shaft assembly 4. The connecting shaft assembly 4 includes a connecting shaft 12. One end of the manhole cover plate 2 is provided with a cover plate flipping protrusion 10, and the side of the cover plate flipping protrusion 10 is provided with a cover plate hinge hole 11. The manhole cover base 1 includes a base receiving part 7, and the base receiving part 7 is provided with a base through hole 8. The base receiving part 7 is provided with a base inner perimeter 9 at the base through hole 8. The inner wall of the base inner perimeter 9 is provided with a base for limiting the insertion of the manhole cover plate 2. The inner retaining edge 14, the base receiving part 7 is provided with a flip docking seat 15 outside the inner perimeter edge 9 of the base, the flip docking seat 15 is provided with a docking seat main groove 16 in the middle of the center, which communicates with the through hole 8 of the base, the flip docking seat 15 is provided with docking seat adjustment grooves 17 on both sides of the docking seat main groove 16, the flip adjustment component 3 includes an adjustment component seat body 20 placed in the flip docking seat 15, the adjustment component seat body 20 is provided with an adjustment component seat body limiting groove 21 for limiting the flip protrusion 10 of the cover plate, the upper parts of the two sides of the adjustment component seat body 20 are bent vertically in sequence to form a cover on the docking seat adjustment The adjusting component stop 23 is located above the groove 17, and the adjusting component fixing part 24 is placed in the adjusting groove 17 of the docking seat. The adjusting component seat 20 has longitudinally arranged adjusting component seat waist-shaped holes 22 on both side walls. The cover plate hinge hole 11 and the adjusting component seat waist-shaped holes 22 are connected by the connecting shaft 12. The rear end of the adjusting component seat 20 has a flip clearance opening 25 for flipping the manhole cover 2 by 180 degrees. The adjusting component fixing part 24 has a fixing part waist-shaped hole 26 corresponding to the adjusting component seat waist-shaped hole 22. The side wall of the flip docking seat 15 has a fixing part waist-shaped hole 26 corresponding to the fixing part waist-shaped hole 22. The manhole cover 2 has a connecting hole 27 that communicates with the waist-shaped hole 26 of the fixed part. The waist-shaped hole 26 of the fixed part and the connecting hole 27 of the connecting seat are connected by bolts. Prying the manhole cover 2 causes the flipping adjustment component 3 to move upward and move out of the ground. Then, the manhole cover 2 is flipped over so that the manhole cover 2 can be flipped 180 degrees smoothly without ground obstruction. The flipping angle is increased from the traditional 90° to 180°. After the manhole cover 2 is fully unfolded, it is parallel to the ground, providing unobstructed operating space for maintenance personnel. The hinges of the manhole cover 2 and the manhole cover base 1 are not stressed, are not easily damaged, and have a longer service life.

[0019] The connecting shaft assembly 4 also includes a pin 13. The connecting shaft 12 passes through the hinge hole 11 of the cover plate and the waist-shaped hole 22 of the adjusting component seat. Both ends of the shaft are locked by the pin 13. The connection structure is simple and firm, and convenient for later maintenance.

[0020] It also includes a height support member 5 placed in the docking seat adjustment groove 17. The height support member 5 includes a support member driving part 30 that fits against the bottom of the adjustment member stop 23, a support member adjusting head 31 located above the support member driving part 30, and a support member screw 32 located below the support member driving part 30. The bottom of the docking seat adjustment groove 17 is provided with a docking seat threaded hole 33 that engages with the support member screw 32. The adjustment member stop 23 is provided with an adjustment member clearance hole 34 for the support member adjusting head 31 to make way when adjusting. By turning the support member adjusting head 31 of the height support member 5 with a tool, the height support member 5 moves upward, driving the flipping adjustment member 3 from inside the manhole cover base 1, which facilitates the 180-degree flipping of the manhole cover plate 2, making the flipping efficiency higher and easier.

[0021] The support member driving part 30 has driving part top blocks 36 at both ends for abutting against the bottom of the adjusting part stop 23, so as to prevent excessive frictional resistance when the height support member 5 rotates, which would cause jamming and make the adjustment smoother.

[0022] The base receiving part 7 is provided with base mounting holes 37 and base reinforcing ribs 38 at intervals around the arc, which ensures reliable installation and a stable and firm structure.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A hinged manhole cover, characterized by: The manhole cover includes a base (1), a cover plate (2), a flip adjustment component (3), and a connecting shaft assembly (4). The connecting shaft assembly (4) includes a connecting shaft (12). One end of the cover plate (2) is provided with a cover plate flipping protrusion (10). The side of the cover plate flipping protrusion (10) is provided with a cover plate hinge hole (11). The manhole cover base (1) includes a base receiving part (7). The base receiving part (7) is provided with a base through hole (8). The base receiving part (7) is provided with an inner edge (9) at the base through hole (8). The inner wall of the inner perimeter (9) of the base is provided with an inner baffle (14) for limiting the insertion of the manhole cover plate (2). The base receiving part (7) is provided with a flip docking seat (15) outside the inner perimeter (9) of the base. The flip docking seat (15) is provided with a docking seat main groove (16) in the middle, which communicates with the through hole (8) of the base. The flip docking seat (15) is provided with docking seat adjustment grooves (17) on both sides of the docking seat main groove (16). The flip adjustment component (3) includes an adjustment component seat body placed inside the flip docking seat (15). (20) The adjusting body (20) is provided with an adjusting body limiting groove (21) for limiting the cover plate flipping protrusion (10). The upper parts of both sides of the adjusting body (20) are bent vertically in sequence to form an adjusting body stop (23) covering the adjusting groove (17) of the docking seat and an adjusting body fixing part (24) placed in the adjusting groove (17) of the docking seat. The two side walls of the adjusting body (20) are provided with longitudinally arranged adjusting body waist-shaped holes (22). The cover plate hinge hole (11) and the adjusting body waist-shaped hole (22) The adjusting member seat (20) is connected by the connecting shaft (12). The rear end of the adjusting member seat (20) is provided with a flip clearance opening (25) for flipping the manhole cover plate (2) by 180 degrees. The adjusting member fixing part (24) is provided with a fixing part waist-shaped hole (26) corresponding to the waist-shaped hole (22) of the adjusting member seat. The side wall of the flip docking seat (15) is provided with a docking seat connecting hole (27) communicating with the fixing part waist-shaped hole (26). The fixing part waist-shaped hole (26) and the docking seat connecting hole (27) are connected by bolts.

2. The hinged manhole cover of claim 1, wherein: The connecting shaft assembly (4) also includes a pin (13). The connecting shaft (12) passes through the hinge hole (11) of the cover plate and the waist-shaped hole (22) of the adjusting member seat, and its two ends are locked by the pin (13).

3. The hinged manhole cover of claim 1, wherein: It also includes a height support member (5) placed in the docking seat adjustment groove (17). The height support member (5) includes a support member driving part (30) that fits against the bottom of the adjustment member stop (23), a support member adjustment head (31) provided above the support member driving part (30), and a support member screw (32) provided below the support member driving part (30). The bottom of the docking seat adjustment groove (17) is provided with a docking seat threaded hole (33) that connects with the support member screw (32). The adjustment member stop (23) is provided with an adjustment member clearance hole (34) for the support member adjustment head (31) to make way when adjusting.

4. The hinged manhole cover of claim 3, wherein: The support member driving part (30) has driving part top blocks (36) at both ends for abutting against the bottom of the adjusting part stop (23).

5. The hinged manhole cover of claim 1, wherein: The base receiving part (7) is provided with base mounting holes (37) and base reinforcing ribs (38) at intervals around the arc.

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