Municipal nodular cast iron manhole cover

Abstract

The utility model relates to the technical field of manhole covers, and discloses a municipal nodular cast iron manhole cover which comprises a cover and an installation position, warning parts are arranged on the two sides of the installation position, each warning part comprises a light bar and a hinting block, the top of each hinting block is an arc surface, warning colors are coated on the arc surfaces, and anti-falling parts are arranged on the two sides of the cover in the height direction. The anti-falling part comprises an anti-falling net and a water baffle, and the water baffle is elastically attached to the bottom of the installation position. The probability that keys and other small parts of people playing on the municipal square fall into the well is reduced through the anti-falling net, the water baffle is in a normally-closed state, when small objects penetrate through the anti-falling net and fall into the well, the small objects can be blocked through the water baffle, and economic losses caused by object loss are reduced; the circular arc surfaces of the indicating blocks can enable bicycles playing in a municipal square to be in smooth transition, the warning colors on the circular arc surfaces can prompt players to pay attention to safety, and the light bars are powered and emit light at night to play a role in warning at night.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, and in particular to a ductile iron manhole cover for municipal use. Background Technology

[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling in. They can be classified by material into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc. Although manhole covers were once regarded as "patches" that affected the aesthetics of the city, through careful design and production, they can "integrate" with the surrounding environment and even become visual embellishments, adding a unique landscape to the city. This beautification not only enhances the city's image but also provides citizens and tourists with a more pleasant visual experience.

[0003] According to the description of a municipal manhole cover published on the patent website (authorization announcement number: CN216973498U), it "includes a manhole base, a manhole cover, and a filter bucket. The manhole cover is rotatably connected to the manhole base, and the manhole cover is provided with a plurality of drainage holes. A step is provided on the base below the manhole cover. The filter bucket is semi-circular, and its open end extends outward to provide a support ear. The filter bucket is set on the step through the support ear. The filter bucket is provided with filter holes, and the diameter of the filter holes increases sequentially from the bottom to the top."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In use, this utility model includes a manhole base, a manhole cover, and a filter bucket. The filter bucket has filter holes with the diameter of the holes increasing from the bottom to the top. In the prior art, only the filter bucket has filter holes, and the manhole cover cannot filter. For people playing in municipal parks, it is very inconvenient to retrieve small items such as keys that have fallen in. Therefore, it is necessary to improve the municipal ductile iron inspection manhole cover to solve the above problems. Utility Model Content

[0006] To overcome the problem that existing manhole cover components only have filter holes in the filter hopper, and the manhole cover cannot filter, making it inconvenient for people playing in municipal parks to retrieve small items such as keys that have fallen in.

[0007] The technical solution of this utility model is as follows: a municipal ductile iron manhole cover, including a cover, a mounting position at the bottom of the cover, a mounting groove corresponding to the cover, the cover being placed in the mounting groove without protruding from the top surface of the mounting position, warning parts on both sides of the mounting position along the length of the cover, the warning parts including light strips and indicator blocks, the top of the indicator blocks being an arc surface painted with a warning color, anti-falling parts on both sides of the height of the cover, the anti-falling parts including an anti-falling net at the top of the cover and a water baffle at the bottom of the cover, the water baffle elastically fitting the bottom of the mounting position, positioning posts on both sides of the length of the top of the cover, the positioning posts being able to fix the position of the anti-falling net, the anti-falling net having positioning holes corresponding to the positioning posts.

[0008] Preferably, the installation position includes a rectangular frame structure, with a baffle on the upper part of the outer wall of the rectangular frame structure to prevent the installation position from falling into the bottom of the well. The center of the installation position also includes a drain outlet, the length of which is less than the length of the installation groove, and the width of which is less than the width of the installation groove.

[0009] Preferably, the baffle includes a movement hole through which a bolt can be locked into the mounting position. The bolt includes a stud, and a spring can be fitted onto the stud. The baffle is located at the top of the spring and at the bottom of the mounting position. The spring pushes the cover toward the mounting position.

[0010] Preferably, the lid has one-piece cast schematic blocks on both sides along its length. Each schematic block includes a slot, and the slots of the two schematic blocks are arranged opposite each other. The arc-shaped surface of the top of the schematic block is coated with orange paint.

[0011] Preferably, the top of the mounting position has light grooves on both sides of the mounting slot, and light strips can be placed in the light grooves. The bottom of the light strip has a shim, the top surface of the light strip is flush with the top surface of the mounting position, and the top of the light strip has a light-transmitting surface, from which orange light can be emitted.

[0012] Preferably, the side of the light trough facing the drain outlet is provided with a water-avoiding hole, which is connected to the mounting groove, and the height of the shim block is higher than the height of the water-avoiding hole.

[0013] Preferably, the top of the cover has a through hole, and the top of the anti-fall net has a through hole, with the area of ​​the cover hole being larger than the area of ​​the anti-fall hole.

[0014] The beneficial effects of this utility model are as follows: Compared with the filter bucket with filter holes, the anti-fall net reduces the probability of small parts such as keys falling into the well shaft by people playing in the municipal square. The baffle is in a normally closed state. When small objects pass through the anti-fall net and fall into the well shaft, they can be stopped by the baffle, reducing the economic loss caused by lost objects. The arc surface of the indicator block allows bicycles and skateboards playing in the municipal square to pass smoothly. The warning color on the arc surface can remind players to pay attention to safety. The light strip is powered and illuminated at night, serving as a warning at night. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the block structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cover hole structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the drain outlet structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the bolt structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Mounting position; 11. Light trough; 111. Water-proof hole; 12. Drain outlet; 121. Mounting groove; 13. Edge guard; 2. Water baffle; 21. Motion hole; 3. Cover; 31. Schematic block; 311. Arc surface; 312. Slot; 32. Positioning post; 33. Cover hole; 4. Anti-fall net; 41. Positioning hole; 42. Anti-fall hole; 5. Light strip; 51. Light-transmitting surface; 52. Raising block; 61. Bolt; 62. Spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 - Figure 5This utility model provides an embodiment: a municipal ductile iron manhole cover, including a cover 3, with a mounting position 1 at the bottom of the cover 3. The mounting position 1 includes a mounting groove 121 corresponding to the cover 3. The cover 3 is placed in the mounting groove 121 and does not protrude from the top surface of the mounting position 1. Warning sections are provided on both sides of the mounting position 1 along the length of the cover 3. The warning sections include a light strip 5 and an indicator block 31. The top of the indicator block 31 is an arc surface 311, which is painted with a warning color. Anti-fall sections are provided on both sides of the cover 3 along the height direction. The anti-fall sections include an anti-fall net 4 located at the top of the cover 3 and a water baffle 2 located below the cover 3. The water baffle 2 is elastically fitted to the bottom of the mounting position 1. Positioning posts 32 are provided on both sides of the top length of the sub-3. The positioning posts 32 can fix the position of the anti-fall net 4. The anti-fall net 4 is provided with positioning holes 41 corresponding to the positioning posts 32. The anti-fall net 4 reduces the probability of small parts such as keys falling into the well shaft by people playing in the municipal square. The water baffle 2 is in a normally closed state. When a small object passes through the anti-fall net 4 and falls into the well shaft, it can be blocked by the water baffle 2, reducing the economic loss caused by the loss of the object. The arc surface 311 of the schematic block 31 can allow bicycles and skateboards playing in the municipal square to pass smoothly. The warning color on the arc surface 311 can remind the players to pay attention to safety. The light strip 5 is powered and illuminated at night, which serves as a warning at night.

[0023] Please see Figure 1 - Figure 4In this embodiment, the mounting position 1 includes a rectangular frame structure. A retaining edge 13 is provided above the outer wall of the rectangular frame structure to prevent the mounting position 1 from falling into the well bottom. The center of the mounting position 1 also includes a drain outlet 12. The length of the drain outlet 12 is less than the length of the mounting groove 121; the width of the drain outlet 12 is less than the width of the mounting groove 121. The retaining edge 13 fixes the mounting position 1, preventing it from falling into the well. The mounting groove 121 prevents the cover 3 from falling into the well. The drain outlet 12 is used for drainage. The baffle plate 2 includes a moving hole 21 through which a bolt 61 can be inserted into the mounting position 1. The bolt 61 includes a stud, and a spring 62 can be fitted onto the stud. The baffle plate 2 is located at the top of the spring 62 and at the bottom of the mounting position 1. The spring 62 pushes the cover 3 towards the mounting position 1. Spring 62 presses the baffle 2 towards the installation position 1, keeping the baffle 2 in a normally closed state. This allows for the possibility of rescuing small objects that fall through the anti-fall net 4 and light strip 5. The anti-fall net 4 and cover 3 can be opened to retrieve the fallen items from the baffle 2. The addition of the anti-fall net 4 to the cover 3 reduces the inconvenience for citizens to find municipal staff to open the anti-fall net 4 and cover 3. After a certain amount of water accumulates on the baffle 2, spring 62 is pressed down to drain the water into the manhole. The cover 3 has two integrally cast indicator blocks 31 on both sides along its length. Each indicator block 31 includes a slot 312, with the slots 312 of the two indicator blocks 31 facing each other. The arc surface 311 on the top of the indicator block 31 is painted orange, making the location of the manhole cover more conspicuous. The slots 312 are used to insert the anti-fall net 4.

[0024] Please see Figure 2 - Figure 5 In this embodiment, the top of the mounting position 1 is provided with light grooves 11 on both sides of the mounting slot 121. A light strip 5 can be placed in the light groove 11. A raised block 52 is provided at the bottom of the light strip 5. The top surface of the light strip 5 is flush with the top surface of the mounting position 1. The top of the light strip 5 has a light-transmitting surface 51, from which orange light is emitted. The raised block 52 reduces the possibility of water entering the internal circuit components of the light strip 5. The interior of the light strip 5 is filled with sealant. The orange light source can warn people playing in the municipal park at night. A water-avoiding hole 111 is provided on the side of the light groove 11 facing the drain outlet 12 to prevent water ingress. Hole 111 is connected to mounting groove 121. The height of the shim 52 is higher than the height of the water-avoiding hole 111. By raising the height of the light strip 5 through the shim 52, water entering the light groove 11 can be quickly discharged from the water-avoiding hole 111, reducing the risk of the light strip 5 being soaked in water and damaged by water. The top of the cover 3 has a through cover hole 33, and the top of the anti-fall net 4 has a through anti-fall hole 42. The area of ​​the cover hole 33 is larger than the area of ​​the anti-fall hole 42. The anti-fall hole 42 is smaller than the cover hole 33, so that small items cannot pass through the anti-fall hole 42. The length of the anti-fall hole 42 is less than two centimeters, and the width of the anti-fall hole 42 is less than five millimeters.

[0025] When a citizen's key accidentally slips from their pocket and falls onto the manhole cover assembly during operation, the anti-fall net 4 will initially block the key, preventing it from falling through the hole 33. If the key passes through the anti-fall hole 42 with a low probability and then falls onto the top of the baffle plate 2 through the hole 33, the baffle plate 2 will only bear the weight of the key or other small object, and the spring 62 will not deform, lifting the baffle plate 2 to fit snugly against the mounting position 1. Citizens can then call municipal staff for assistance in retrieving the key. The municipal staff will first arch the middle of the anti-fall net 4, opening the positioning hole 41 from the fixed position... Remove the support post 32, then pull the two sides of the anti-fall net 4 from the slot 312 and remove the anti-fall net 4. Then, pull up the cover 3 through the cover hole 33 with your hand. This way, you can take the key from above the baffle plate 2. During the day, the orange paint on the arc surface 311 warns citizens of the location of the manhole cover to pay attention to safety. At night, the light strip 5 emits orange light to warn citizens of the location of the manhole cover to pay attention to safety. When it rains, rainwater passes through the anti-fall hole 42 and the cover hole 33 and falls above the baffle plate 2. After accumulating a certain amount of water, the spring 62 contracts, and the rainwater flows out from the gap between the baffle plate 2 and the installation position 1.

[0026] Through the above steps, the anti-fall net 4 reduces the probability of small items such as keys falling into the manhole while playing in the municipal square. The baffle 2 is normally closed, so when a small object passes through the anti-fall net 4 and falls into the manhole, it can be blocked by the baffle 2, reducing the economic loss caused by the loss of the object. The arc surface 311 of the schematic block 31 allows bicycles and skateboards playing in the municipal square to pass smoothly. The warning color on the arc surface 311 can remind players to pay attention to safety. The light strip 5 is powered and illuminated at night, which serves as a warning at night. This solves the problem in the existing technology where the manhole cover assembly only has filter holes in the filter bucket, and the manhole cover cannot filter. This makes it very inconvenient for people playing in the municipal park to retrieve small items such as keys after they fall in.

Claims

1. A municipal ductile iron inspection cover characterized by: The utility model provides a cover (3) is included, the bottom of cover (3) is equipped with installation site (1), installation site (1) includes the installation slot (121) corresponding with cover (3), cover (3) is placed in installation slot (121) and does not protrude on the surface of installation site (1) top, installation site (1) is equipped with warning part along the both sides of cover (3) length direction, warning part includes light bar (5), schematic block (31), schematic block (31) top is arc surface (311), arc surface (311) is coated with warning color, the both sides of cover (3) height direction are equipped with anti-falling part, anti-falling part includes the anti-falling net (4) at cover (3) top and the water baffle (2) below cover (3), water baffle (2) elasticly fits in the bottom of installation site (1), the both sides of cover (3) top length direction are equipped with positioning column (32), positioning column (32) can fix the position of anti-falling net (4), and anti-falling net (4) is equipped with the positioning hole (41) corresponding with positioning column (32).

2. The municipal ductile iron inspection cover of claim 1, wherein: Installation site (1) includes rectangular frame structure, the top of rectangular frame structure outer side wall is equipped with fender (13), fender (13) can block installation site (1) and fall into the well bottom, and installation site (1) center position further includes downspout (12), and the length of downspout (12) is less than the length of installation slot (121);The width of downspout (12) is less than the width of installation slot (121).

3. The municipal ductile iron inspection cover of claim 2, wherein: Water baffle (2) includes movement hole (21), can lock into bolt (61) towards installation site (1) through movement hole (21), bolt (61) includes stud, spring (62) can be sleeved at the place of stud, water baffle (2) is located at the top of spring (62), water baffle (2) is located at the bottom of installation site (1), and spring (62) is pressed towards installation site (1) direction of cover (3).

4. The ductile iron inspection cover for municipal use of claim 2, wherein: The both sides of cover (3) length direction are integrally formed with schematic block (31) by casting, schematic block (31) includes insertion slot (312), the insertion slot (312) of two schematic blocks (31) is oppositely arranged, and the arc surface (311) at the top of schematic block (31) is coated with orange paint.

5. The ductile iron inspection cover for municipal use of claim 3, wherein: The top of installation site (1) is equipped with lamp groove (11) at the both sides of installation slot (121), light bar (5) can be placed in lamp groove (11), the bottom of light bar (5) is equipped with pad block (52), the face where the top of light bar (5) is located is flush with the face where the top of installation site (1) is located, the top of light bar (5) is equipped with light-transmitting face (51), and light bar (5) can emit orange light from light-transmitting face (51).

6. The ductile iron inspection cover for municipal use according to claim 4, characterized in that: The side of lamp groove (11) towards downspout (12) is equipped with water-avoiding hole (111), water-avoiding hole (111) is communicated with installation slot (121), and the height of pad block (52) is higher than the height of water-avoiding hole (111).

7. The ductile iron inspection cover for municipal use according to claim 6, characterized in that: The top of cover (3) is equipped with through cover hole (33), the top of anti-falling net (4) is equipped with through anti-falling hole (42), and the area of cover hole (33) is greater than the area of anti-falling hole (42).

Images