Invisible anti-theft inspection well cover

Abstract

The utility model relates to an invisible anti-theft inspection well cover. The technical problem to be solved by the utility model is to provide the invisible anti-theft inspection well cover. According to the technical scheme, the inspection well cover comprises an inspection well cover base, an inspection well cover plate, a cover plate and a locking sleeve, the inspection well cover plate comprises a cover plate body and a cover plate butt joint part, the cover plate butt joint part is sequentially provided with a cover plate anti-theft threaded hole and a cover plate fixing hole from outside to inside, the inspection well cover base comprises a base bearing part, and the base bearing part is provided with an anti-theft threaded hole. A base through hole is formed in the base bearing part, and a base inner surrounding edge is arranged at the position, at the base through hole, of the base bearing part. The invisible anti-theft inspection well cover has the advantages that the inspection well cover plate and the inspection well cover base are connected through the locking sleeve, the locking sleeve can only be assembled and disassembled through a special tool, the risk of being stolen is effectively prevented, the cover plate can shield the locking sleeve, meanwhile, the cover plate and the inspection well cover plate form secondary fixation, and the anti-theft effect is good. Therefore, the connection is more stable, the concealment is realized, and the safety is higher.

Description

Technical Field

[0001] This utility model relates to an invisible anti-theft manhole cover. Background Technology

[0002] Urban construction involves numerous underground pipelines, such as sewers, underground gas pipelines, water supply pipelines, power pipelines, communication pipelines, and defense pipelines. These pipelines have an outlet to the surface at intervals; this section from the pipeline to the surface is called a manhole. The manhole opening is usually flush with the ground, thus requiring a cover, called a manhole cover. Traditional manhole covers are mostly fixed with ordinary bolts or clips, making them easily dismantled by criminals using bare hands or ordinary tools. This results in poor anti-theft performance, and stolen manhole covers create "black holes" in the road, posing a safety hazard. Improvements and optimizations are needed 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 an invisible anti-theft manhole cover.

[0004] The technical solution adopted by this utility model of an invisible anti-theft manhole cover is characterized by comprising a manhole cover base, a manhole cover plate, a cover plate, and a locking sleeve, all housed within the manhole cover base. The manhole cover plate includes a cover plate body and cover plate mating portions located at the left and right ends of the cover plate body. The cover plate mating portions are provided with anti-theft threaded holes and cover plate fixing holes sequentially from the outside to the inside. The manhole cover base includes a base receiving portion, which has a base through hole. The base receiving portion has an inner circumference at the base through hole. The inner wall of the inner circumference has a base limiting stop for limiting the position of the cover plate body when it is installed. The left and right ends of the inner circumference form square mating seats, and the inner side of the square mating seats has a mating support for the cover plate mating portion. The receiving block has a threaded hole corresponding to the anti-theft threaded hole of the cover plate. The outer wall of the locking sleeve has an external thread that connects the anti-theft threaded hole of the cover plate and the threaded hole of the receiving block. The locking sleeve has a circular hole and an inner boss. The cover plate covers the mating part of the cover plate and is fixed on the square mating seat. The cover plate has a mating hole and is connected to the fixing hole of the cover plate by screws. The upper surface of the cover plate, the upper surface of the inner edge of the base, and the upper surface of the manhole cover are on the same horizontal plane.

[0005] It also includes a connecting pin, the side of the cover plate is provided with a cover plate connecting hole, the square docking seat is provided with a docking seat clearance groove and a docking seat connecting hole for swinging, the connecting pin passes through the docking seat connecting hole and the cover plate connecting hole, and the cover plate is swingably fixed on the square docking seat by the connecting pin.

[0006] The cover plate is provided with a countersunk groove for countersunk screws during installation, and the cover plate mating hole is provided in the countersunk groove.

[0007] The cover plate body has an inner groove, and the inner groove has a pry hole and an array of cross-shaped anti-slip patterns.

[0008] The base receiving part is provided with a waist-shaped hole for base installation, and the base receiving part is provided with base reinforcing ribs at intervals around the outer arc of the inner edge of the base.

[0009] The advantages of this utility model of invisible anti-theft manhole cover are as follows: the locking sleeve connects the manhole cover plate and the manhole cover base. The locking sleeve can only be installed and removed with special tools, which effectively prevents theft risks. The cover plate can cover the locking sleeve and form a secondary fixation with the manhole cover plate, making the connection more stable and concealed, and the security higher. 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 structural schematic diagram of the concealed anti-theft manhole cover of this utility model;

[0012] Figure 2 This is an exploded view of the concealed anti-theft manhole cover of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the manhole cover base of this utility model;

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

[0015] Figure 5 This is a schematic diagram of the structure of the locking sleeve of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model. Detailed Implementation

[0017] like Figure 1-6As shown, the concealed anti-theft manhole cover of this utility model includes a manhole cover base 1, a manhole cover plate 2, a cover plate 3, and a locking sleeve 4, all housed within the manhole cover base 1. The manhole cover plate 2 includes a cover plate body 15 and cover plate mating portions 16 located at the left and right ends of the cover plate body 15. The cover plate mating portions 16 are provided with anti-theft threaded holes 17 and fixing holes 18 from the outside to the inside. The manhole cover base 1 includes a base receiving portion 7, and a base through hole 8 is provided within the base receiving portion 7. The base receiving part 7 has an inner perimeter 9 at the base through hole 8. The inner wall of the inner perimeter 9 has a base limiting stop 10 for limiting the position when the cover plate body 15 is closed. The left and right ends of the inner perimeter 9 form square docking seats 11. The inner side of the square docking seat 11 has a docking seat receiving block 12 for the cover plate docking part 16 to receive. The docking seat receiving block 12 has a receiving block threaded hole 13 corresponding to the anti-theft threaded hole 17 of the cover plate. The outer wall of the locking sleeve 4 has a locking sleeve outer perimeter. Thread 19, the external thread 19 of the locking sleeve connects the anti-theft threaded hole 17 of the cover plate and the threaded hole 13 of the receiving block together. The locking sleeve 4 is provided with a circular locking sleeve hole 20. The inner wall of the circular locking sleeve hole 20 is provided with a locking sleeve inner boss 21 adapted to a special tool. The cover plate 3 covers the cover plate mating part 16 and is fixed on the square mating seat 11. The cover plate 3 is provided with a cover plate mating hole 24. The cover plate mating hole 24 and the cover plate fixing hole 18 are connected by a screw. The manhole cover 1 and the base 2 are connected by a nail, with the upper surface of the cover plate 3, the upper surface of the inner edge 9 of the base, and the upper surface of the manhole cover plate 2 on the same horizontal plane. The manhole cover plate 1 and the manhole cover base 2 are connected by a locking sleeve 4. The locking sleeve 4 can only be installed and removed with special tools, effectively preventing theft. The cover plate 3 can cover the locking sleeve 4 and form a secondary fixation with the manhole cover plate 1, making the connection more stable and concealed. The concealed design reduces the motivation for malicious damage, extends the service life of the manhole cover, and enhances safety.

[0018] It also includes a connecting pin 5. The side of the cover plate 3 is provided with a cover plate connecting hole 25. The square docking seat 11 is provided with a docking seat clearance groove 26 and a docking seat connecting hole 27 for swinging. The connecting pin 5 passes through the docking seat connecting hole 27 and the cover plate connecting hole 25. The cover plate 3 can be swingably fixed on the square docking seat 11 by the connecting pin 5, which is flexible to use and easy to disassemble quickly during maintenance.

[0019] The cover plate 3 is provided with a countersunk groove 36 for countersunk screws during installation. The countersunk groove 36 is provided with a mating hole 24, which makes the surface smooth and prevents it from affecting the normal passage of pedestrians or vehicles.

[0020] The cover plate body 15 is provided with an inner groove 30, and the inner groove 30 is provided with a pry opening 32 and an array of cross anti-slip patterns 31 to increase the friction of the cover plate surface and prevent pedestrians or vehicles from slipping.

[0021] The base receiving part 7 is provided with a base mounting waist-shaped hole 35, and the base receiving part 7 is provided with base reinforcing ribs 34 at intervals around the outer arc of the inner perimeter 9 of the base to enhance the compressive strength of the base receiving part 7.

[0022] 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 concealed anti-theft manhole cover, characterized in that: The manhole cover includes a base (1), a manhole cover plate (2), a cover plate (3), and a locking sleeve (4) installed inside the manhole cover base (1). The manhole cover plate (2) includes a cover plate body (15) and cover plate mating parts (16) provided at the left and right ends of the cover plate body (15). The cover plate mating parts (16) are provided with cover plate anti-theft threaded holes (17) and cover plate fixing holes (18) from the outside to the inside. 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 a base inner circumference (9) at the base through hole (8). The inner wall of the base inner circumference (9) is provided with a base limiting stop (10) for limiting the position when the cover plate body (15) is covered. The left and right ends of the base inner circumference (9) form square docking seats (11). The inner side of the square docking seat (11) is provided with a docking seat receiving block for the cover plate docking part (16) to receive. (12), the docking seat receiving block (12) is provided with a receiving block threaded hole (13) corresponding to the anti-theft threaded hole (17) of the cover plate, the outer wall of the locking sleeve (4) is provided with a locking sleeve external thread (19), the locking sleeve external thread (19) connects the anti-theft threaded hole (17) of the cover plate and the receiving block threaded hole (13) together, the locking sleeve (4) is provided with a locking sleeve circular hole (20), the inner wall of the locking sleeve circular hole (20) is provided with a threaded hole (13) corresponding to the anti-theft threaded hole (17) of the cover plate and the receiving block threaded hole (13), ... external thread (19), the locking sleeve external thread (19) connects the anti-theft threaded hole (17) of the cover plate and the receiving block threaded hole (13), the locking sleeve (4) is provided with a locking sleeve circular hole (20), the inner wall of the locking sleeve circular hole (20) is provided with a threaded hole (13) corresponding to the anti-theft threaded hole (17) of the cover plate and the receiving block threaded hole (13), the locking sleeve (4) is provided with a locking sleeve external thread (19), the locking sleeve (4) is provided with a locking sleeve circular hole (20), the inner wall of the locking sleeve circular hole (20) is provided with a threaded hole (13) corresponding to the The cover plate (3) is covered above the cover plate mating part (16) and fixed on the square mating seat (11) by a locking sleeve with a tool-compatible inner boss (21). The cover plate (3) is provided with a cover plate mating hole (24). The cover plate mating hole (24) and the cover plate fixing hole (18) are connected by screws. The upper end face of the cover plate (3), the upper end face of the inner edge (9) of the base and the upper end face of the manhole cover (2) are on the same horizontal plane.

2. The concealed anti-theft manhole cover according to claim 1, characterized in that: It also includes a connecting pin (5), the side of the cover plate (3) is provided with a cover plate connecting hole (25), the square docking seat (11) is provided with a docking seat clearance groove (26) for swinging and a docking seat connecting hole (27), the connecting pin (5) passes through the docking seat connecting hole (27) and the cover plate connecting hole (25), and the cover plate (3) is swingably fixed on the square docking seat (11) by the connecting pin (5).

3. The concealed anti-theft manhole cover according to claim 1, characterized in that: The cover plate (3) is provided with a countersunk groove (36) for countersunk screws during installation, and the cover plate mating hole (24) is provided in the countersunk groove (36).

4. The concealed anti-theft manhole cover according to claim 1, characterized in that: The cover plate body (15) is provided with a cover plate inner groove (30), and the cover plate inner groove (30) is provided with a cover plate pry hole (32) and an array of cross anti-slip patterns (31).

5. The concealed anti-theft manhole cover according to claim 1, characterized in that: The base receiving part (7) is provided with a base mounting waist-shaped hole (35), and the base receiving part (7) is provided with base reinforcing ribs (34) at intervals around the inner edge (9) of the base.

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