Safe anti-theft well lid for water supply and drainage

Abstract

The utility model provides a safe anti-theft well lid for water supply and drainage, which comprises a channel body and a well lid main body, a plurality of needle heads are circumferentially arranged below two drainage ports at equal intervals, square plates are symmetrically arranged below the well lid main body, and through grooves are respectively arranged on the opposite inner sides of the two square plates in a penetrating manner; moving columns are slidably mounted in the two through grooves correspondingly, abutting blocks are mounted at the opposite inner ends of the two moving columns correspondingly, fillets are arranged at the opposite inner ends of the two abutting blocks correspondingly, spring mounting covers are mounted at the opposite outer ends of the two moving columns correspondingly, and springs are mounted on the opposite inner sides of the two spring mounting covers correspondingly; by means of the design, the problems that an original device is too few in anti-theft structure and poor in safety performance, a gear structure is high in cost and complex in installation step are solved, the anti-theft device is reasonable in structure and good in practicability, a new anti-theft structure is added, the safety performance of the well lid is greatly improved, the installation cost is low, and the practicability and economical efficiency are improved.

Description

Technical Field

[0001] The utility model is a safe anti-theft manhole cover for water supply and drainage, belonging to the technical field of anti-theft manhole covers. Background Art

[0002] The anti-theft method used by some manhole covers is to simply lock them to the ground with iron locks, but the iron locks are easily pried open or damaged, which indirectly leads to a low anti-theft effect of the manhole covers. When the manhole covers are stolen, if pedestrians on the road do not discover them in time, serious accidents are likely to occur, which is very dangerous.

[0003] Chinese patent announcement number: CN214994110U, mentions a safety anti-theft manhole cover for water supply and drainage. By extending two sets of locking rods into the positioning grooves in the manhole body, the manhole cover is locked when it is not driven, reducing the theft of the manhole cover. It not only effectively reduces the loss of public property, but also avoids accidents caused by pedestrians on the road not discovering the theft in time. It can also cut off the driving source of the adjustment mechanism, making it inconvenient for the thief to remove the manhole cover from the manhole body, reducing the probability of the manhole cover being stolen and improving the practicality of the manhole cover. However, this device has too few anti-theft structures and weak insurance, and the gear structure has high cost and complicated installation steps. Now there is an urgent need for a safety anti-theft manhole cover for water supply and drainage to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a safe anti-theft manhole cover for water supply and drainage, so as to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. It not only adds a new anti-theft structure to greatly improve the safety of the manhole cover, but also has a low installation cost, thereby improving practicality and economy.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a safe and anti-theft manhole cover for water supply and drainage, comprising a passage body and a manhole cover body, the annular inner wall of the passage body is symmetrically provided with limited holes, the inner annular surface of the passage of the passage body is fixedly provided with a stabilizing ring, a rolling annular groove is provided above the stabilizing ring, and limited grooves are symmetrically provided above the stabilizing ring, and two limited grooves are respectively communicated with the rolling annular groove, a mounting groove is provided at the middle part of the upper part of the manhole cover body, a circular groove is provided through the center of the bottom surface of the mounting groove, a circular piece is rotatably installed on the bottom surface of the mounting groove, the circular piece is concentric with the circular groove, a circular shaft is installed at the center of the circle below the circular piece, and a resistance plate is installed at the lower end of the circular shaft, drainage ports are symmetrically provided through the upper part of the manhole cover body, and a plurality of needles are equidistantly installed circumferentially below the two drainage ports, a square plate is symmetrically installed below the manhole cover body, and through grooves are respectively provided through the opposite inner sides of the two square plates, and the two through grooves The cam is provided with a plurality of springs, each of which has a plurality of springs connected to the plurality of springs, each of which has a plurality of springs connected to the plurality of springs.

[0006] Furthermore, the volumes of the two moving blocks are respectively smaller than the volumes of the two limiting grooves.

[0007] Furthermore, a sealing cover is movably mounted on the inner side surface of the mounting groove, and the upper surface of the sealing cover is horizontally aligned with the upper surface of the manhole cover body.

[0008] Furthermore, the grooves of the two special bolts are triangular.

[0009] Furthermore, rounded corners are respectively provided at both ends of the abutment plate.

[0010] Furthermore, the surface of the special handle is coated with anti-slip paint.

[0011] The beneficial effects of the utility model: the utility model is a safety anti-theft manhole cover for water supply and drainage. Because the utility model adds special handles, special bolts, springs, resistance plates, resistance blocks and limit grooves, our design improvements and actual use have shown that the device has a reasonable structure and good practicality. It not only adds a new anti-theft structure to greatly improve the safety of the manhole cover, but also has a low installation cost, thereby improving practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the installation position structure of a special handle of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0015] Figure 3 This is a three-dimensional schematic diagram of the position structure of the clamping groove of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the position structure of the limiting holes of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0017] Figure 5 It is a three-dimensional schematic diagram of the connection structure between the manhole cover body and the stabilizing ring of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0018] Figure 6 This is a three-dimensional schematic diagram of the through slot position structure of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0019] Figure 7 This is a three-dimensional schematic diagram of the main structure of a safety and anti-theft manhole cover for water supply and drainage according to the utility model;

[0020] Figure 8 It is a three-dimensional schematic diagram of a stabilizing ring structure of a safety anti-theft manhole cover for water supply and drainage according to the utility model;

[0021] Fig. 9 The utility model is a kind of safety anti-theft manhole cover for water supply and drainage Figure 2 A three-dimensional enlarged schematic diagram of the structure at A.

[0022] In the figure: 1-channel body, 2-manhole cover body, 3-sealing cover, 4-drainage outlet, 5-mounting groove, 6-special handle, 7-circular sheet, 8-clamping groove, 9-stabilizing ring, 10-circular groove, 11-circular shaft, 12-contact plate, 13-contact block, 14-spring mounting cover, 15-spring, 16-square plate, 17-moving column, 18-needle, 19-through groove, 20-limiting groove, 21-rolling annular groove, 22-moving block, 23-ball groove, 24-universal ball, 25-limiting hole, 26-bolt hole, 27-special bolt. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-Figure 9The utility model provides a technical solution: a safe and anti-theft manhole cover for water supply and drainage, including a channel body 1 and a manhole cover body 2, the annular inner wall of the channel body 1 is symmetrically provided with a limiting hole 25, the inner annular surface of the channel of the channel body 1 is fixed with a stabilizing ring 9, a rolling annular groove 21 is provided above the stabilizing ring 9, and a limiting groove 20 is symmetrically provided above the stabilizing ring 9, and the two limiting grooves 20 are respectively communicated with the rolling annular groove 21, an installation groove 5 is provided in the middle of the upper part of the manhole cover body 2, a circular groove 10 is provided through the center of the bottom surface of the installation groove 5, and the bottom of the installation groove 5 A circular sheet 7 is installed on the surface for rotation, and the circular sheet 7 is concentric with the circular groove 10. A circular shaft 11 is installed at the center of the circle below the circular sheet 7, and a contact plate 12 is installed at the lower end of the circular shaft 11. A drainage port 4 is symmetrically penetrated on the top of the manhole cover body 2, and a plurality of needles 18 are installed at equal distances on the circumference below the two drainage ports 4. A square plate 16 is symmetrically installed below the manhole cover body 2, and a through groove 19 is respectively penetrated on the relative inner sides of the two square plates 16. Moving columns 17 are respectively slidably installed inside the two through grooves 19, and the two moving columns 17 are respectively installed with a contact plate 12 at the relative inner ends. The two contact blocks 13 are provided with rounded corners at the inner ends thereof, the two moving columns 17 are provided with spring mounting covers 14 at the outer ends thereof, the two spring mounting covers 14 are provided with springs 15 at the inner sides thereof, the two springs 15 are connected to the two square plates 16 at the inner ends thereof, the two moving columns 17 are provided between the two springs 15, the areas of the two spring mounting covers 14 are respectively smaller than the areas of the two limiting holes 25, the circular sheet 7 is provided with symmetrically arranged snap-fit ​​grooves 8, the two snap-fit ​​grooves 8 are provided with special handles 6 at the inner ends thereof, and the circular sheet 7 is provided with a plurality of spring mounting covers 14. Bolt holes 26 are symmetrically provided, and the two bolt holes 26 respectively penetrate the circular sheet 7 and the mounting groove 5, and special bolts 27 are respectively screwed into the two bolt holes 26. Moving blocks 22 are symmetrically installed under the manhole cover body 2, and ball grooves 23 are respectively provided under the two moving blocks 22. Universal balls 24 are movably installed inside the two ball grooves 23, and the two universal balls 24 are respectively in contact with the bottom surface of the rolling annular groove 21. This design solves the problems of the original device having too few anti-theft structures, weak insurance, high gear structure cost, and complicated installation steps.

[0025] As the first embodiment of the utility model: the volume of the two moving blocks 22 is respectively smaller than the volume of the two limiting grooves 20. By making the volume of the two moving blocks 22 smaller than the volume of the two limiting grooves 20, it is convenient for the two moving blocks 22 to smoothly enter the two limiting grooves 20. The inner side of the installation groove 5 is movably installed with a cover 3, and the upper surface of the cover 3 is horizontally aligned with the upper surface of the manhole cover body 2. By horizontally aligning the upper surface of the cover 3 with the upper surface of the manhole cover body 2, it is convenient to reduce bumps. The grooves of the two special bolts 27 are triangular. By making the grooves of the two special bolts 27 triangular, the two special bolts 27 will not be easily unscrewed, and a special screwdriver must be used. Rounded corners are respectively provided at both ends of the contact plate 12. By providing rounded corners at both ends of the contact plate 12, it is convenient to contact the contact block 13 smoothly. The surface of the special handle 6 is coated with anti-slip paint. By coating the surface of the special handle 6 with anti-slip paint, the staff's hands are not easy to slip when turning the special handle 6.

[0026] As the second embodiment of the utility model: when in use, first place the manhole cover body 2 above the stabilizing ring 9 so that the two universal balls 24 are in contact with the bottom surface of the rolling annular groove 21 respectively, and then rotate the manhole cover body 2. When the two universal balls 24 roll to the two limit grooves 20, they will bring the corresponding moving blocks 22 into the two limit grooves 20. Then, when the two special bolts 27 are not installed, the circular piece 7 is rotated through the special handle 6. The circular piece 7 drives the circular shaft 11 and the contact plate 12 to rotate. When the two ends of the contact plate 12 touch the two contact blocks 13 respectively, the two contact blocks 13 are squeezed, driving the corresponding moving column 17 and the corresponding spring installation cover 14 to enter the corresponding limit hole 25. At this time, the two springs 15 are in a stretched state. Then, the two special bolts 27 are respectively installed into the two bolt holes 26 through a special screwdriver, and the special handle 6 is removed to cover the cover 3.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safe and anti-theft manhole cover for water supply and drainage, comprising a passage body (1) and a manhole cover body (2), Features: The annular inner wall of the passage body (1) is symmetrically provided with limiting holes (25); the inner annular surface of the passage of the passage body (1) is fixedly provided with a stabilizing ring (9); a rolling annular groove (21) is provided above the stabilizing ring (9); limiting grooves (20) are symmetrically provided above the stabilizing ring (9); the two limiting grooves (20) are respectively communicated with the rolling annular grooves (21); a mounting groove (5) is provided in the middle of the upper part of the manhole cover body (2); a circular groove (10) is provided through the center of the bottom surface of the mounting groove (5); a circular sheet (7) is rotatably provided on the bottom surface of the mounting groove (5); the circular sheet (7) is concentric with the circular groove (10); a circular shaft (11) is provided at the center of the circle below the circular sheet (7); a contact plate (12) is provided at the lower end of the circular shaft (11); A drainage port (4) is symmetrically provided on the top of the manhole cover body (2), and a plurality of needles (18) are equidistantly installed on the circumference below the two drainage ports (4). A square plate (16) is symmetrically installed on the bottom of the manhole cover body (2), and through grooves (19) are provided on the inner sides of the two square plates (16). Moving columns (17) are slidably installed inside the two through grooves (19). A resistance block (13) is installed on the inner ends of the two moving columns (17). The inner ends of the two resistance blocks (13) are rounded. Spring mounting covers (14) are installed on the outer ends of the two moving columns (17). Springs (15) are installed on the inner sides of the two spring mounting covers (14). The inner ends of the two springs (15) are connected to the two square plates (16). The two moving columns (17) are arranged between the two springs (15). The areas of the two spring mounting covers (14) are smaller than the areas of the two limiting holes (25). The circular sheet (7) is symmetrically provided with snap-fit ​​grooves (8) on the top, and two special handles (6) are snap-fitted and installed inside the two snap-fit ​​grooves (8). The circular sheet (7) is symmetrically provided with bolt holes (26) on the top, and the two bolt holes (26) respectively penetrate the circular sheet (7) and the installation groove (5), and special bolts (27) are respectively screwed into the two bolt holes (26). Moving blocks (22) are symmetrically installed below the manhole cover body (2), and ball grooves (23) are respectively provided below the two moving blocks (22), and universal balls (24) are respectively movably installed inside the two ball grooves (23), and the two universal balls (24) are respectively in contact with the bottom surface of the rolling annular groove (21).

2. A safe and anti-theft manhole cover for water supply and drainage according to claim 1, Features: The volumes of the two moving blocks (22) are respectively smaller than the volumes of the two limiting grooves (20).

3. A safe and anti-theft manhole cover for water supply and drainage according to claim 1, Features: A sealing cover (3) is movably mounted on the inner side surface of the mounting groove (5), and the upper surface of the sealing cover (3) is horizontally aligned with the upper surface of the manhole cover body (2).

4. A safe and anti-theft manhole cover for water supply and drainage according to claim 1, Features: The grooves of the two special bolts (27) are triangular.

5. A safe and anti-theft manhole cover for water supply and drainage according to claim 1, Features: Rounded corners are respectively provided at both ends of the abutment plate (12).

6. A safe and anti-theft manhole cover for water supply and drainage according to claim 1, Features: The surface of the special handle (6) is coated with anti-slip paint.

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