Invisible well lid structure

Abstract

The utility model relates to the technical field of well lids, in particular to an invisible well lid structure which comprises a well lid outer frame, a well lid inner box and a fixing plate, and the well lid inner box is connected to the inner wall of the well lid outer frame. The hidden well lid structure has the beneficial effects that when the hidden well lid structure is used, bearing force is transmitted to the well lid outer frame through the supporting framework, then the bearing load and the overall strength of a hidden well lid are improved, stone laid on the top face of the hidden well lid is prevented from being fractured and broken at will, and therefore the effect of improving the load and the overall strength conveniently is achieved; when the hidden well lid structure is used, the hidden well lid is pulled upwards through the pull ring until the hidden well lid is disconnected from the well mouth for overhauling, then a worker does not need to use a crowbar to penetrate through an overhauling hole and then upwarp the well lid according to the lever principle, then the situation that the corners of the well lid deform to affect subsequent use is prevented, and the function of opening the well lid conveniently is achieved when the hidden well lid structure is used.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an invisible manhole cover structure. Background Art

[0002] A construction project refers to an engineering entity formed through the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Municipal engineering construction is also a type of construction. The invisible manhole cover is a new type of manhole cover product that blends perfectly with the surrounding road surface, thereby achieving the purpose of beautifying the environment and protecting the manhole cover.

[0003] In the prior art, after the invisible manhole cover is installed at the manhole mouth, it is usually necessary to pave the surface of the manhole cover with stone material, so that the surface of the manhole cover is completely integrated with the surrounding road surface, so that the manhole cover no longer appears abrupt, and the overall aesthetics is improved.

[0004] However, the inner box of the invisible manhole cover is usually only connected to the outer frame at the edge, and the middle part of the inner box is suspended, which leads to the relatively weak bearing capacity of the invisible manhole cover. When pedestrians and vehicles pass through the middle of the invisible manhole cover, the bearing force mainly acts on the stone paved on the surface of the manhole cover and is not transferred to the outer frame, which leads to the poor overall bearing capacity of the invisible manhole cover and easily causes the stone paved on the surface to break, thus affecting the use of the invisible manhole cover. Utility Model Content

[0005] The purpose of the utility model is to provide an invisible manhole cover structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an invisible manhole cover structure, comprising a manhole cover outer frame, a manhole cover inner box and a fixing plate, wherein the inner wall of the manhole cover outer frame is connected to the manhole cover inner box.

[0007] Preferably, a fixing plate is welded to the inner wall of the inner box of the manhole cover, and one side of the outer wall of the fixing plate is butted against a limiting seat.

[0008] Preferably, a support frame is snap-connected inside the limiting seat, and support strips are welded at the corners of the inner box of the manhole cover.

[0009] Preferably, the support frame is in a "well" shape.

[0010] Preferably, a storage cavity is provided on the outer wall of the manhole cover outer frame, and a fixing pin is connected inside the storage cavity.

[0011] Preferably, a pull ring is rotatably connected to the outer wall of the fixing pin.

[0012] Compared with the prior art, the beneficial effect of the utility model is that when the invisible manhole cover structure is in use, the load-bearing force is transferred to the outer frame of the manhole cover through the supporting skeleton, thereby increasing the load-bearing load and overall strength of the invisible manhole cover, and preventing the stones laid on the top surface of the invisible manhole cover from breaking and crushing at will, thereby facilitating the increase of the load and overall strength. The invisible manhole cover is pulled up by the pull ring until the invisible manhole cover is disconnected from the wellhead for inspection, and then there is no need for the staff to use a crowbar to pass through the inspection hole and then use the lever principle to lift the manhole cover, thereby preventing the corners of the manhole cover from being deformed and affecting subsequent use, thereby facilitating the opening of the manhole cover when the invisible manhole cover structure is in use.

[0013] When the invisible manhole cover structure proposed by the utility model is used, the support frame is first inserted into the limiting seat, at which time the limiting seat and the support frame are engaged with each other, thereby limiting the support frame, and then the load-bearing force is transmitted to the outer frame of the manhole cover through the support frame, thereby increasing the load-bearing load and overall strength of the invisible manhole cover, and preventing the stone material laid on the top surface of the invisible manhole cover from breaking and crushing at will, so that when the invisible manhole cover structure is used, it is convenient to increase the load and overall strength;

[0014] When the invisible manhole cover structure proposed by the utility model is used, the pull ring is first manually rotated to a vertical state, and then a crowbar or a lifting rope is passed through the pull ring, and then the invisible manhole cover is pulled upward until the invisible manhole cover is disconnected from the wellhead for inspection, and then the manhole cover is lifted up by the lever principle without the need for the staff to use a crowbar to pass through the inspection hole. This way of opening the manhole cover can easily cause the corners of the manhole cover to deform, which in turn affects the use of the invisible manhole cover after the inspection is completed, thereby facilitating the opening of the manhole cover when the invisible manhole cover structure is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional cutaway structure of the inner box of the manhole cover of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the inner box of the manhole cover of the utility model from top view;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the support frame of the utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the pull ring of the utility model.

[0020] In the figure: 1. manhole cover outer frame; 2. manhole cover inner box; 3. fixing plate; 4. limit seat; 5. supporting frame; 6. supporting bar; 7. storage cavity; 8. fixing pin; 9. pull ring. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figures 1 to 4 The utility model provides a technical solution: an invisible manhole cover structure, including a manhole cover outer frame 1, a manhole cover inner box 2 and a fixing plate 3, the inner wall of the manhole cover outer frame 1 is connected to the manhole cover inner box 2; a fixing plate 3 is welded to the inner wall of the manhole cover inner box 2, and one side of the outer wall of the fixing plate 3 is butted against a limiting seat 4; a supporting frame 5 is snap-connected inside the limiting seat 4, and supporting strips 6 are welded at the corners of the manhole cover inner box 2; the supporting frame 5 is in the shape of a "well"; a triangular stabilizing mechanism is formed between the manhole cover inner box 2 and the supporting strips 6, the fixing plate 3 is welded to the limiting seat 4, a snap-in groove that is butted against the supporting frame 5 is opened inside the limiting seat 4, and a top plate is welded to the top of the manhole cover inner box 2.

[0024] In the process of closing and protecting the manhole by the invisible manhole cover, in order to improve the bearing capacity of the invisible manhole cover, the fixing plate 3 is welded to the inner wall of the manhole cover inner box 2 in advance. Because the fixing plate 3 is welded to the limiting seat 4, the supporting frame 5 is then inserted into the limiting seat 4. At this time, the limiting seat 4 and the supporting frame 5 are snap-fitted and connected, thereby limiting the supporting frame 5 to prevent it from moving at will. When the supporting frame 5 needs to be taken out, it is only necessary to move the supporting frame 5 upward and disconnect it from the limiting seat 4. Then the top plate is welded to the manhole cover inner box 2, and at this time, a triangular stable structure is formed between the supporting strip 6 and the manhole cover inner box 2, thereby preventing the corners of the manhole cover inner box 2 from being deformed.

[0025] Furthermore, when the middle part of the inner box 2 of the manhole cover is under pressure due to the movement of vehicles and pedestrians, the load-bearing force is transferred to the inner box 2 of the manhole cover through the supporting frame 5, and then the inner box 2 of the manhole cover transfers the force to the outer frame 1 of the manhole cover, and the outer frame 1 of the manhole cover transfers the force to the road surface, thereby increasing the load-bearing capacity and overall strength of the invisible manhole cover, preventing the stones laid on the top surface of the invisible manhole cover from breaking and crushing at will, thereby facilitating the increase of the load and overall strength when the invisible manhole cover structure is used.

[0026] Embodiment 2

[0027] See also Figure 1 and Figure 5The utility model provides a technical solution: an invisible manhole cover structure, a storage cavity 7 is opened on the outer wall of the manhole cover outer frame 1, and a fixing pin 8 is connected to the storage cavity 7; a pull ring 9 is rotatably connected to the outer wall of the fixing pin 8; both sides of the outer wall of the fixing pin 8 are welded to the inner box 2 of the manhole cover.

[0028] In the process of closing and protecting the wellhead by the invisible manhole cover, as the use time increases, when the invisible manhole cover needs to be opened for maintenance, since the fixing pin 8 and the pull ring 9 are rotationally connected, the pull ring 9 is manually rotated first, so that the pull ring 9 is moved out of the storage chamber 7 and is in a vertical state, and then the crowbar or the lifting rope is passed through the pull ring 9, and then the invisible manhole cover is pulled upward until the invisible manhole cover is disconnected from the wellhead, and then the invisible manhole cover is opened for maintenance, and then the staff does not need to use the crowbar to pass through the inspection hole reserved at the corner of the manhole cover, and then use the lever principle to lift the manhole cover, and the use of the lever principle to lift the manhole cover can easily cause the corners of the invisible manhole cover to deform, which in turn affects the use of the invisible manhole cover after the maintenance is completed, thereby facilitating the opening of the manhole cover when the invisible manhole cover structure is used.

[0029] In actual use, when the invisible manhole cover structure is used, the manhole cover outer frame 1 is first installed on the wellhead, and then the manhole cover inner box 2 is connected to the inner wall of the manhole cover outer frame 1 to close and protect the wellhead, and then stones are laid on the top of the manhole cover inner box 2 to integrate it with the road surface to achieve an invisible effect. This is a prior art and will not be elaborated on here.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An invisible manhole cover structure, comprising a manhole cover outer frame (1), a manhole cover inner box (2) and a fixing plate (3), characterized in that: The inner wall of the manhole cover outer frame (1) is connected with a manhole cover inner box (2). The inner wall of the manhole cover inner box (2) is welded with a fixing plate (3). One side of the outer wall of the fixing plate (3) is butted with a limiting seat (4). A support skeleton (5) is snap-connected inside the limiting seat (4). Support bars (6) are welded at the corners of the manhole cover inner box (2).

2. The invisible manhole cover structure according to claim 1, characterized in that: The support skeleton (5) is in the shape of a "well".

3. The invisible manhole cover structure according to claim 1, characterized in that: A storage cavity (7) is formed on the outer wall of the manhole cover outer frame (1), and a fixing pin (8) is connected inside the storage cavity (7).

4. The invisible manhole cover structure according to claim 3, characterized in that: A pull ring (9) is rotatably connected to the outer wall of the fixing pin (8).

Images