Invisible well lid

Abstract

The utility model relates to municipal engineering, and discloses an invisible well lid which comprises a supporting outer frame, a lid body and four sets of plugging assemblies. When the cover body does not need to be opened, the elastic piece enables the sliding block to abut against the horizontal piece, and sundries are prevented from entering the cavity. When the cover body needs to be opened, a crowbar is still adopted to be inserted into the kidney-shaped through groove, in the process, the crowbar abuts against the sliding block and overcomes the elastic piece to enable the sliding block to move downwards, then the crowbar is rotated, the part, entering the cavity, of the crowbar can abut against the horizontal piece upwards, and therefore the cover body is pulled up. The cover has the advantages that the structure is simple, sundries are prevented from entering the cavity, the cover body and the road surface are still kept flush, and normal operation when the cover body needs to be opened is guaranteed.

Description

Technical Field

[0001] The utility model relates to municipal engineering, and particularly relates to an invisible manhole cover. Background Art

[0002] Generally, a manhole cover includes a supporting outer frame arranged at the wellhead position of a well body and a cover body placed in the supporting outer frame. By arranging a through groove on the cover body, when opening the cover body, a crowbar is inserted into the waist-shaped through groove, and then the crowbar is rotated so that the part of the crowbar passing through the cover body can upwardly abut against the cover body, thereby pulling up the cover body. In this way, the cover body can be flush with the road surface and can be opened more conveniently. For an invisible manhole cover, on the basis of normal use, the aesthetics and integrity of the road surface are also considered, that is, the cover body is in a box shape, and bricks are laid in the cover body to match the bricks on the road surface where the well body is located.

[0003] Due to the particularity that bricks need to be laid on the invisible manhole cover, it is very difficult to directly set the waist-shaped through groove to pass through the cover body like a common manhole cover. Generally, for an invisible manhole cover: connecting pieces are arranged at the four corner positions of the cover body, a chamber is formed between the connecting pieces and the cover body, and the waist-shaped through groove is arranged on the connecting piece and communicates with the chamber.

[0004] The existing structure of the invisible manhole cover still has the following problems: sundries easily enter the chamber through the waist-shaped through groove and accumulate, which will affect the operation of opening the cover body after a long time of accumulation. Content of the Utility Model

[0005] This application provides an invisible manhole cover that can solve the problems raised in the background art.

[0006] In this application, an invisible manhole cover is provided, including:

[0007] A supporting outer frame, in a rectangular frame shape, with a cross-section in an L shape;

[0008] A cover body, in a box shape, with connecting pieces fixed at the four corner positions. The connecting piece includes a first vertical piece and a horizontal piece, and forms a chamber with the cover body; a waist-shaped through groove communicating with the chamber is further arranged on the horizontal piece;

[0009] Four groups of blocking components are respectively arranged in the four chambers of the cover body; each group of the blocking components includes: a slider that slides up and down in the cover body and an elastic member that makes the slider abut against the horizontal piece.

[0010] Further, two connecting columns are further arranged on the inner side surface of the horizontal piece facing the chamber, and first screws for making the connecting piece detachable are arranged between each of the two connecting columns and the horizontal plate of the cover body.

[0011] Furthermore, the connecting piece also includes two second vertical pieces; the vertical plates at the four corners of the cover body are all provided with second screws, and the second vertical pieces are provided with through holes for the second screws to enter.

[0012] Furthermore, the sliding block is connected to the two connecting columns by sliding up and down.

[0013] Furthermore, the elastic member is a compression spring, which is sleeved on the two connecting columns.

[0014] Furthermore, a protrusion matching the waist-shaped through groove is provided on the top surface of the sliding block at a position corresponding to the waist-shaped through groove.

[0015] In summary, in the present application, an invisible manhole cover includes a supporting outer frame, a cover body and four groups of blocking components. When the cover body does not need to be opened, the elastic member causes the slider to press against the horizontal sheet to prevent debris from entering the chamber. When the cover body needs to be opened, a crowbar is still used to insert it into the waist-shaped through groove. During this process, the crowbar presses against the slider, overcomes the elastic member to move the slider downward, and then rotates the crowbar so that the part of the crowbar that enters the chamber can press upward against the horizontal sheet, thereby pulling up the cover body. Beneficial effects: simple structure, preventing debris from entering the chamber while the cover body and the road surface remain flush, ensuring normal operation when the cover body needs to be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0017] Figure 1 is a schematic diagram of a cover;

[0018] Figure 2 A schematic diagram of a cover body being placed on a supporting outer frame;

[0019] Figure 3 A schematic diagram of the arrangement of the blocking component between the cover body and the connecting piece;

[0020] Figure 4 It is a schematic diagram of the arrangement between the second screw, the connecting piece and the cover body.

[0021] In the figure,

[0022] 1. Support frame; 1a. Horizontal part; 1b. Vertical part;

[0023] 2. Cover body; 2a. Horizontal plate; 2b. Vertical plate; 2c. Connecting plate; 2c1. First vertical plate; 2c2. Horizontal plate; 2c3. Second vertical plate; 2c4. Waist-shaped through groove; 2c5. Connecting column; 2c6. First screw; 2c7. Second screw;

[0024] 3. Sealing assembly; 3a. Slide block; 3a1. Protrusion; 3b. Elastic member;

[0025] 4. Rubber pad. Detailed implementation manner

[0026] The following further explanations are made in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in this disclosure should have the ordinary meaning understood by those with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "up", "down", "left", "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] Please refer to Figure 1 and Figure 2 , an invisible manhole cover, including a support outer frame 1, a cover body 2 and four groups of sealing assemblies 3.

[0028] The support outer frame 1 is in the shape of a rectangular frame, and its cross-section is in the shape of an L. The support outer frame 1 is fixedly connected to the wellhead position of the well body.

[0029] The cover body 2 is in the shape of a box body, that is, it includes a horizontal plate 2a and vertical plates 2b arranged along the four edges of the horizontal plate 2a. Correspondingly, the size of the cover body 2 matches that of the support outer frame 1. Specifically, the cover body 2 is placed inside the support outer frame 1 and is supported by the horizontal part 1a of the support outer frame 1. A rubber pad 4 is also provided between the two, and there is a gap left between the cover body 2 and the vertical part 1b of the support outer frame 1.

[0030] Connection pieces 2c are fixedly provided at the four corner positions of the cover body 2. The connection piece 2c includes a first vertical piece 2c1 and a horizontal piece 2c2. That is, the outer shape of the horizontal piece 2c2 is triangular, and the outer shape of the first vertical piece 2c1 is square. The connection piece 2c can be directly welded and fixed to the cover body 2 to form a chamber with the cover body 2.

[0031] Cut the corresponding bricks and fit them into the chamber, so as to lay bricks in the cover body 2 and fit them with the bricks on the road surface where the well body is located.

[0032] For the connecting piece 2c, a kidney-shaped through groove 2c4 communicating with the chamber is further provided on the horizontal piece 2c2. That is, when it is necessary to open the cover body 2, a corresponding crowbar is used and inserted into the kidney-shaped through groove 2c4, and then the crowbar is rotated so that the part of the crowbar entering the chamber can upwardly abut against the horizontal piece 2c2, thereby pulling up the cover body 2.

[0033] Four groups of plugging components 3 are respectively arranged in the four chambers of the cover body 2. Taking one group of plugging components 3 as an example for description. One group of plugging components 3 includes a slider 3a and an elastic member 3b. The slider 3a is slidably connected to the cover body 2 up and down, and the elastic member 3b acts on the slider 3a to make the slider 3a abut against the horizontal piece 2c2.

[0034] In this way, when the cover body 2 does not need to be opened, the elastic member 3b makes the slider 3a abut against the horizontal piece 2c2 to prevent sundries from entering the chamber. When it is necessary to open the cover body 2, still a crowbar is inserted into the kidney-shaped through groove 2c4. In this process, the crowbar abuts against the slider 3a, overcomes the elastic member 3b to make the slider 3a move downward, and then the crowbar is rotated so that the part of the crowbar entering the chamber can upwardly abut against the horizontal piece 2c2, thereby pulling up the cover body 2.

[0035] It can be found that when the slider 3a abuts against the horizontal piece 2c2, a smaller groove will be formed between the slider 3a and the kidney-shaped through groove 2c4, and sundries are likely to accumulate in this groove. When it is necessary to open the cover body 2, the crowbar abuts against the slider 3a, overcomes the elastic member 3b to make the slider 3a move downward, and the sundries in the groove will enter the chamber again.

[0036] Therefore, in some embodiments, a protrusion 3a1 matching the kidney-shaped through groove 2c4 is provided at the position of the top surface of the slider 3a corresponding to the kidney-shaped through groove 2c4.

[0037] In this way, when the slider 3a abuts against the horizontal piece 2c2, the protrusion 3a1 enters the kidney-shaped through groove 2c4, and the above-mentioned groove is no longer formed between the slider 3a and the kidney-shaped through groove 2c4, more effectively preventing sundries from entering the chamber.

[0038] It can be found that if the connecting piece 2c is directly welded and fixed to the cover body 2, then the slider 3a and the elastic member 3b cannot be repaired if there are faults.

[0039] Please refer to Figure 3 , therefore, in some embodiments, two connecting columns 2c5 are further provided on the inner side surface of the horizontal piece 2c2 facing the chamber. A first screw 2c6 for detaching the connecting piece 2c is provided between each of the two connecting columns 2c5 and the horizontal plate 2a of the cover body 2. That is, through holes for the first screw 2c6 to pass through are provided on the horizontal plate 2a, and threaded holes for threaded connection of the first screw 2c6 are provided on the bottom surface of the connecting column 2c5.

[0040] In this way, the connection piece 2c and the cover body 2 are detachably fixed. If the slider 3a and the elastic member 3b malfunction, the connection piece 2c can be easily removed for maintenance.

[0041] Based on the setting that the horizontal piece 2c2 is provided with two connecting posts 2c5, when it is necessary to open the cover body 2, the part of the crowbar that enters the chamber abuts upward against the horizontal piece 2c2 to pull up the cover body 2. During this process, the connection positions of the first screw 2c6, the horizontal plate 2a and the connecting post 2c5, and the connection position of the connecting post 2c5 and the horizontal piece 2c2 are the stress positions. Compared with the connection piece 2c being directly welded to the cover body 2, the stability is insufficient.

[0042] Please refer to Figure 4 , furthermore, the connection piece 2c further includes two second vertical pieces 2c3. Second screws 2c7 are provided on the vertical plates 2b at the four corner positions of the cover body 2, that is, the vertical plates 2b are provided with threaded through holes for the second screws 2c7 to be threadedly connected and enter the chamber, and the second vertical pieces 2c3 are provided with through holes for the second screws 2c7 to enter.

[0043] In this way, the connection piece 2c and the cover body 2 are strengthened by the second screws 2c7, taking into account the detachability between the connection piece 2c and the cover body 2 and the stability of the connection between the two.

[0044] Furthermore, the slider 3a is slidably connected up and down to the two connecting posts 2c5. The elastic member 3b is a compression spring and is sleeved on the two connecting posts 2c5.

Claims

1. An invisible manhole cover, characterized in that: include: The supporting outer frame (1) is in the shape of a rectangular frame and has an L-shaped cross section; The cover body (2) is box-shaped, and connecting pieces (2c) are fixed at the four corners. The connecting pieces (2c) include a first vertical piece (2c1) and a horizontal piece (2c2), and form a cavity with the cover body (2); a waist-shaped through groove (2c4) communicating with the cavity is also provided on the horizontal piece (2c2); Four groups of blocking components (3) are respectively arranged in four chambers of the cover body (2); each group of the blocking components (3) comprises: a slider (3a) sliding up and down on the cover body (2) and an elastic member (3b) making the slider (3a) press against the horizontal sheet (2c2).

2. The invisible manhole cover according to claim 1, characterized in that: The horizontal sheet (2c2) is also provided with two connecting posts (2c5) on the inner side surface facing the chamber, and first screws (2c6) are provided between the two connecting posts (2c5) and the horizontal plate (2a) of the cover body (2) to make the connecting sheet (2c) detachable.

3. The invisible manhole cover according to claim 2, characterized in that: The connecting piece (2c) also includes two second vertical pieces (2c3); the vertical plates (2b) at the four corners of the cover body (2) are all provided with second screws (2c7), and the second vertical pieces (2c3) are provided with through holes for the second screws (2c7) to enter.

4. The invisible manhole cover according to claim 2, characterized in that: The slider (3a) is slidably connected to the two connecting pillars (2c5) up and down.

5. The invisible manhole cover according to claim 2, characterized in that: The elastic member (3b) is a compression spring, which is sleeved on the two connecting pillars (2c5).

6. The invisible manhole cover according to claim 1, characterized in that: A protrusion (3a1) matching the waist-shaped through groove (2c4) is provided at a position on the top surface of the sliding block (3a) corresponding to the waist-shaped through groove (2c4).

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