Invisible well lid without surface protrusions

Abstract

The utility model provides an invisible well lid without surface protrusions, which comprises a well frame, a detachable well lid is arranged in the well frame, the well lid comprises a frame, a plurality of detachable step bricks are arranged in the frame, connecting pieces are arranged between the step bricks and a well lid bottom plate, a well frame bottom plate is arranged below the well frame, and a plurality of cuttage supports are arranged at the bottom of the well frame bottom plate. According to the hidden well lid without the surface protrusions, the requirement for traditional tensioning nails is eliminated, the flatness of the surface of the step bricks is remarkably improved, therefore, smoother and safer walking experience is provided for pedestrians, particularly on a sidewalk for the blind, potential stumbling stones are removed, and the safety of the pedestrians is improved. The walking risk of visually impaired people is greatly reduced, and the problem that the surface of a sidewalk is uneven due to the fact that a traditional tensioning nail of a traditional hidden well lid protrudes out of the surface of a sidewalk brick is solved.

Description

Technical Field

[0001] The utility model relates to the field of invisible manhole cover processing, in particular to an invisible manhole cover without surface protrusions. Background Art

[0002] In the construction of urban roads and sidewalks, invisible manhole covers are widely used because they can be flush with the ground and do not affect the passage of pedestrians and vehicles. However, the traditional invisible manhole cover design often requires the use of tension nails on the surface of the step bricks to fix the manhole cover, which causes bulges on the surface of the step bricks, which not only destroys the flatness of the ground, but also may cause inconvenience to pedestrians, especially for people with visual impairments, these bulges may cause greater trouble to their walking.

[0003] In order to solve this problem, an invisible manhole cover without surface protrusions was developed. This manhole cover has been optimized in design, removing the traditional tension nails and replacing them with a fixed structure flush with the step bricks, thus ensuring the integrity and flatness of the step brick surface, which not only makes it more convenient for pedestrians to walk, but also greatly reduces the impact on the pedestrian blind path. In addition, since there are no protrusions, this invisible manhole cover also reduces the risk of tripping, improves the safety of public spaces, and reflects the comprehensive consideration of safety, beauty and practicality in modern urban construction. Utility Model Content

[0004] The main purpose of the utility model is to provide an invisible manhole cover without surface protrusions, which solves the problem that the traditional tightening nails of the traditional invisible manhole cover protrude from the surface of the step bricks, resulting in an uneven sidewalk surface.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an invisible manhole cover without surface protrusions, including a manhole frame, a removable manhole cover is arranged in the manhole frame, the manhole cover includes a frame, a plurality of removable step bricks are arranged in the frame, and a connecting piece is arranged between the step bricks and the bottom plate of the manhole cover;

[0006] A well frame bottom plate is arranged below the well frame, a plurality of cutting brackets are arranged at the bottom of the well frame bottom plate, and a sharp portion is arranged at the bottom end of the cutting bracket.

[0007] In the preferred embodiment, a plurality of tensioning columns are provided above the bottom plate of the well frame, the upper half of the tensioning column is a circular smooth column, and the lower half is provided with a threaded section.

[0008] In the preferred embodiment, support plates are provided at the four upper corners of the frame, a manhole cover bottom plate is provided below the frame, and through holes are provided on the support plates, which penetrate the support plates and the manhole cover bottom plate.

[0009] In the preferred embodiment, one side of the step brick is in contact with the support plate, and the other side is provided with a T-shaped groove, the T-shaped groove is divided into a top groove and an open groove, and the open groove runs through one side of the step brick.

[0010] In the preferred embodiment, the tensioning column passes through the through hole, and a rotatable locking nut is provided on the tensioning column, and the locking nut is arranged above the bottom plate of the manhole cover;

[0011] The locking nut is rotatably connected to the threaded section, and a convex piece is also provided on the outer side of the locking nut, and the convex piece is used for clamping the bottom plate of the manhole cover.

[0012] In the preferred embodiment, a composite layer is provided between the step bricks and the bottom plate of the manhole cover, and the connecting piece passes through the composite layer and the bottom plate of the manhole cover.

[0013] In a preferred embodiment, the connecting piece includes a limiting plate, a threaded column is provided below the limiting plate, a tightening nut is provided at the bottom end of the threaded column, and a sealing gasket is provided above the tightening nut;

[0014] The limiting piece is welded to the threaded column, the threaded column penetrates the composite layer and the bottom plate of the manhole cover, the tensioning nut is threadedly connected to the threaded column at the bottom of the bottom plate of the manhole cover, and a sealing gasket is arranged between the tensioning nut and the bottom plate of the manhole cover.

[0015] In a preferred embodiment, the composite layer is concrete.

[0016] The utility model provides an invisible manhole cover without surface protrusions, which has the following beneficial effects: the invisible manhole cover without surface protrusions significantly improves the flatness of the step brick surface by eliminating the need for traditional tightening nails, thereby providing pedestrians with a smoother and safer walking experience, especially on pedestrian blind paths, removing potential stumbling blocks and greatly reducing the walking risks of visually impaired people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is an axonometric view of the invisible manhole cover of the utility model;

[0019] Figure 2 It is an axonometric view of the utility model manhole cover with the step brick removed;

[0020] Figure 3 It is a schematic diagram of the installation of the locking nut of the utility model;

[0021] Figure 4 It is an exploded schematic diagram of the invisible manhole cover of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the tensioning column of the utility model;

[0023] Figure 6 It is an axonometric view of the bottom of the invisible manhole cover of the utility model;

[0024] Figure 7 It is a schematic diagram of the end face T-groove of the step brick of the utility model;

[0025] Figure 8 It is a schematic diagram of the connection between the step brick and the bottom plate of the well frame of the utility model;

[0026] Fig. 9 It is an axonometric view of the slotting device of the utility model;

[0027] Fig.10 It is a cross-sectional view of the slotting device of the utility model;

[0028] Fig.11 It is a top view of the slotting device of the utility model;

[0029] Fig.12 It is a cross-sectional view of the unloading drawer of the utility model;

[0030] Fig.13 It is an axonometric view of the cutting head of the utility model.

[0031] In the figure: well frame 1; cutting bracket 101; sharp part 102; tension column 103; threaded section 104; well frame bottom plate 105; well cover 2; frame 201; support plate 202; through hole 203; well cover bottom plate 204; locking nut 205; convex piece 206; step brick 3; top groove 301; opening groove 302; connector 4; stopper 401; threaded column 402; sealing gasket 403; tension nut 404; composite layer 5; frame 6; frame top plate 601; center console 602; frame bottom plate 603; hopper bracket 604; discharge hopper 6 05; clamping assembly 7; clamping cylinder 701; clamping plate 702; anti-slip pad 703; cutting assembly 8; casing 801; feed inlet 802; air inlet 803; slag outlet 804; fan 805; filter screen 806; cutting motor 807; forward push screw 808; cutting head 809; forward push motor 810; slide rail 811; slider 812; mounting plate 813; unloading drawer 814; cylindrical cutting knife 815; sheet cutting knife 816; spray assembly 9; water tank 901; spray device 902; spray head 903; water baffle 904. DETAILED DESCRIPTION

[0032] Example 1

[0033] like Figure 1-8 As shown, an invisible manhole cover without surface protrusions comprises a manhole frame 1, a removable manhole cover 2 is arranged in the manhole frame 1, the manhole cover 2 comprises a frame 201, a plurality of removable step bricks 3 are arranged in the frame 201, and a connecting piece 4 is arranged between the step bricks 3 and the bottom plate 204 of the manhole cover;

[0034] A well frame bottom plate 105 is provided below the well frame 1 , a plurality of cutting brackets 101 are provided at the bottom of the well frame bottom plate 105 , and a sharp portion 102 is provided at the bottom end of the cutting bracket 101 .

[0035] In the preferred embodiment, a plurality of tensioning columns 103 are provided above the well frame bottom plate 105 . The upper half of the tensioning column 103 is a circular light column, and the lower half is provided with a threaded section 104 .

[0036] In the preferred embodiment, support plates 202 are provided at the four upper corners of the frame 201 , a manhole cover bottom plate 204 is provided below the frame 201 , and a through hole 203 is provided on the support plate 202 , which penetrates the support plate 202 and the manhole cover bottom plate 204 .

[0037] In the preferred embodiment, one side of the step brick 3 is in contact with the support plate 202 , and the other side is provided with a T-shaped slot, which is divided into a top slot 301 and an open slot 302 , and the open slot 302 runs through one side of the step brick 3 .

[0038] In the preferred embodiment, the tensioning column 103 passes through the through hole 203, and a rotatable locking nut 205 is provided on the tensioning column 103, and the locking nut 205 is arranged above the bottom plate 204 of the manhole cover;

[0039] The locking nut 205 is rotatably connected to the threaded section 104 , and a protruding piece 206 is further provided on the outer side of the locking nut 205 , and the protruding piece 206 is used for clamping the bottom plate 204 of the manhole cover.

[0040] In the preferred embodiment, a composite layer 5 is provided between the step brick 3 and the bottom plate 204 of the manhole cover, and the connecting piece 4 passes through the composite layer 5 and the bottom plate 204 of the manhole cover.

[0041] In the preferred embodiment, the connector 4 includes a stopper 401, a threaded column 402 is provided below the stopper 401, a tightening nut 404 is provided at the bottom end of the threaded column 402, and a sealing gasket 403 is provided above the tightening nut 404;

[0042] The limiting piece 401 is welded to the threaded column 402 , the threaded column 402 penetrates the composite layer 5 and the manhole cover bottom plate 204 , the tightening nut 404 is threadedly connected to the threaded column 402 at the bottom of the manhole cover bottom plate 204 , and a sealing gasket 403 is provided between the tightening nut 404 and the manhole cover bottom plate 204 .

[0043] In a preferred embodiment, the composite layer 5 is concrete.

[0044] The method of using an invisible manhole cover without surface protrusions is as follows: at the position where the manhole cover 2 needs to be opened, the existing step bricks 3 are cut into the same shape as the manhole frame 1, and then the cutting bracket 101 of the manhole frame 1 is inserted into the soil at this position, and the manhole frame 1 is compacted so that the upper end surface of the manhole frame 1 is parallel to the surrounding step bricks 3, and the assembled manhole cover 2 is placed in the manhole frame 1, and then the locking nut 205 is passed through the through hole 203 of the upper layer and sleeved on the tensioning column 103 by a T-shaped socket wrench, and the T-shaped socket wrench is rotated to make the locking nut 205 gradually approach the manhole cover bottom plate 204, so that the protruding piece 206 and the through hole 203 are in a cross shape, and the T-shaped socket wrench is taken out to complete the installation of the manhole cover 2, and the flatness of the upper end surface of the manhole cover 2 and the surrounding step bricks 3 is checked;

[0045] The assembly process of the manhole cover 2 is as follows: a layer of concrete of different thicknesses can be pre-cast on the manhole cover bottom plate 204 according to the thickness of the selected step bricks 3 to form a composite layer 5. After the concrete solidifies, the corresponding position of the interlaced connector 4 is found on the concrete surface, through holes are opened, and the processed batch of step bricks 3 and the manhole cover 2 are pulled to the construction site;

[0046] During on-site installation, use a step brick suction cup to place the step brick 3 with the connecting piece 4 flat into the manhole cover 2, tighten the tightening nut 404 at the bottom of the manhole cover bottom plate 204, and complete the installation of the step brick 3 on one side. Similarly, use the step brick suction cup to install the other side. Compared with the previous manhole cover, the step brick 3 installed in this way has no obvious protrusions, which is more convenient for people to walk and can also reduce interference with the pedestrian blind path.

[0047] Example 2

[0048] Further illustrate with reference to Example 1, Figure 8-13 The structure shown is a step brick side grooving device, comprising a frame 6, a frame top plate 601 is provided above the frame 601, a cutting assembly 8 is provided on the frame top plate 601, and a clamping assembly 7 is provided on one side of the cutting assembly 8;

[0049] A discharge hopper 605 is provided below the frame 6 , and a spraying assembly 9 is also provided inside the cutting assembly 8 .

[0050] In the preferred embodiment, a central console 602 is provided on one side of the frame top plate 601, a frame bottom plate 603 is provided below the frame 6, and a hopper bracket 604 is provided above the frame 603;

[0051] The discharge hopper 605 is arranged on the hopper support 604 .

[0052] In the preferred embodiment, the clamping assembly 7 includes a plurality of clamping cylinders 701, which are arranged on the frame top plate 601, and a clamping plate 702 is arranged at the output shaft end of the clamping cylinder 701, and the clamping plate 702 is arranged between the clamping cylinders 701 on both sides;

[0053] An anti-slip pad 703 is provided below the clamping plate 702 .

[0054] In a preferred embodiment, the anti-skid pad 703 is made of rubber, and a plurality of rectangular opening grooves are provided below the anti-skid pad 703 .

[0055] In the preferred embodiment, the cutting assembly 8 includes a housing 801, a plurality of air inlets 803 are provided on the top of the housing 801, a slag outlet 804 is provided on one side below the housing 801, and a feed inlet 802 is provided on one side of the housing 801 close to the clamping assembly 7;

[0056] A detachable unloading drawer 814 is provided in the slag outlet 804, and the unloading drawer 814 is used for loading cutting waste slag.

[0057] In the preferred embodiment, a fan 805 is provided below the air inlet 803, and slide rails 811 are provided on the inner wall of the housing 801 on both sides below the fan 805, and sliders 812 are provided on the slide rails 811, and mounting plates 813 are provided between the sliders 812;

[0058] A plurality of cutting motors 807 are provided on one side of the mounting plate 813 close to the feed port 802 .

[0059] In the preferred embodiment, a rotatable front push screw 808 is provided in the middle of the mounting plate 813, and the front push screw 808 is connected to the screw nut on the mounting plate 813;

[0060] One end of the forward push screw 808 is rotatably connected to the housing 801, and the other end is provided with a forward push motor 810, which is used to drive the mounting plate 813 to move forward.

[0061] In the preferred embodiment, a cutting head 809 is provided at the output shaft end of the cutting motor 807;

[0062] The cutting head 809 is layered, with the upper layer being a columnar cutting blade 815 , and a sheet-shaped cutting blade 816 being provided below the columnar cutting blade 815 .

[0063] In the preferred embodiment, the spray assembly 9 includes a water tank 901, a spray device 902 is provided below the water tank 901, a spray head 903 is provided below the spray device 902, and the spray assembly 9 is used to settle the dust generated by cutting into the unloading drawer 814 below;

[0064] A water baffle 904 is also provided on one side of the spray head 903 close to the discharge hopper 605 , and the water baffle 904 is used to prevent splashing water from flying into the discharge hopper 605 .

[0065] The working process of a step brick side slotting device is as follows: set the T-slot parameters to be processed in the central control console 602, put the step brick 3 into the cutting assembly 8 from the feed port 802, and trigger the sensor after the step brick 3 moves into place, and the clamping cylinder 701 starts to pull the clamping plate 702 downward to clamp the step brick 3. After clamping, the fan 805 starts, the spray device 902 starts, the cutting motor 807 drives the cutting head 809 to rotate, the forward push motor 810 drives the forward push screw 808 at its shaft end to rotate, and the mounting plate 813 moves to one side of the step brick 3, and the cutting head 809 starts to cut the step brick 3, and the feeding speed is as slow as possible to avoid excessive temperature of the cutter head;

[0066] The dust and gravel generated by cutting will fall into the discharge hopper 605, and finally fall into the discharge drawer 814 after being humidified by the spray device 902. When the discharge drawer 814 is full, it will be manually pulled out and cleaned. The discharge drawer 814 can also be directly connected to the external garbage disposal pool;

[0067] After the cutting is completed, the forward push motor 810 pulls back the cutting motor 807, the fan 805 and the spray device 902 stop temporarily, the clamping cylinder 701 lifts the clamping plate 702 upward, the step brick 3 is manually removed, and an unprocessed step brick 3 is replaced, and the above steps are repeated to perform side grooving processing.

[0068] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An invisible manhole cover without surface protrusions, characterized by: It comprises a well frame (1), a detachable well cover (2) is arranged in the well frame (1), the well cover (2) comprises a frame (201), a plurality of detachable step bricks (3) are arranged in the frame (201), and a connecting piece (4) is arranged between the step bricks (3) and the bottom plate (204) of the well cover; A well frame bottom plate (105) is provided below the well frame (1), a plurality of cutting supports (101) are provided at the bottom of the well frame bottom plate (105), and a sharp portion (102) is provided at the bottom end of the cutting support (101).

2. According to claim 1, the invisible manhole cover without surface protrusions is characterized by: A plurality of tensioning columns (103) are arranged above the well frame bottom plate (105); the upper half of the tensioning column (103) is a circular light column, and the lower half is provided with a threaded section (104).

3. According to claim 1, the invisible manhole cover without surface protrusions is characterized by: Support plates (202) are provided at the four upper corners of the frame (201), a manhole cover bottom plate (204) is provided below the frame (201), and a through hole (203) is provided on the support plate (202), and the through hole (203) penetrates the support plate (202) and the manhole cover bottom plate (204).

4. According to claim 1, the invisible manhole cover without surface protrusions is characterized by: One side of the step brick (3) is in contact with the support plate (202), and the other side is provided with a T-shaped groove, wherein the T-shaped groove is divided into a top groove (301) and an opening groove (302), and the opening groove (302) runs through one side of the step brick (3).

5. According to claim 2, the invisible manhole cover without surface protrusions is characterized by: The tensioning column (103) passes through the through hole (203), and a rotatable locking nut (205) is provided on the tensioning column (103), and the locking nut (205) is arranged above the bottom plate (204) of the manhole cover; The locking nut (205) is rotatably connected to the threaded section (104), and a convex piece (206) is further provided on the outer side of the locking nut (205). The convex piece (206) is used to clamp the bottom plate of the manhole cover (204).

6. The invisible manhole cover without surface protrusions according to claim 1 is characterized in that: A composite layer (5) is further provided between the step brick (3) and the manhole cover bottom plate (204), and the connecting piece (4) penetrates the composite layer (5) and the manhole cover bottom plate (204).

7. The invisible manhole cover without surface protrusions according to claim 6 is characterized in that: The connecting piece (4) comprises a limiting plate (401), a threaded column (402) is provided below the limiting plate (401), a tightening nut (404) is provided at the bottom end of the threaded column (402), and a sealing gasket (403) is provided above the tightening nut (404); The limiting piece (401) is welded to the threaded column (402), the threaded column (402) penetrates the composite layer (5) and the manhole cover bottom plate (204), the tensioning nut (404) is threadedly connected to the threaded column (402) at the bottom of the manhole cover bottom plate (204), and a sealing gasket (403) is provided between the tensioning nut (404) and the manhole cover bottom plate (204).

8. The invisible manhole cover without surface protrusions according to claim 6 is characterized in that: The composite layer (5) is concrete.

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