Anti-falling double-layer well lid structure for municipal engineering

Abstract

The utility model provides an anti-falling double-layer well lid structure for municipal engineering, and relates to the technical field of anti-falling well lids for municipal engineering, the anti-falling double-layer well lid structure for municipal engineering comprises a reinforcing disc and a circular grating disc, the upper end face of the reinforcing disc is provided with a mounting groove along the edge, the reinforcing disc is provided with a well lid through the mounting groove and a shaft pin, and the inner wall of the reinforcing disc is welded with a reinforcing groove. The anti-falling double-layer well lid structure comprises a reinforcing groove, a sliding groove is formed in the side wall of the reinforcing groove, a positioning groove is formed in one end of the sliding groove, and the reinforcing groove is provided with a circular grating disc through the sliding groove, the positioning groove and an adjusting fixing block. And through the design of the adjusting fixing blocks, the adaptability of the circular grating net can be greatly improved, and therefore the circular grating net is worthy of wide application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-drop manhole covers for municipal engineering, and more specifically, particularly relates to an anti-drop double-layer manhole cover structure for municipal engineering. Background Art

[0002] Manhole covers are closed at the top of entrances and exits leading to underground facilities. Manhole covers need to be installed wherever public facilities such as tap water, telecommunications, electricity, gas, heat, fire protection, and sanitation are installed. With the rapid development of my country's economy, my country's infrastructure construction has ushered in a new cycle. The market demand for manhole covers in urban planning and road construction is huge, but manhole covers are often crushed and damaged, resulting in a decrease in the safety of roads and facilities. Chinese Patent No.: CN202011530991.6 provides an anti-fall double-layer manhole cover structure for municipal engineering, including a reinforcement plate, a cylinder and a receiving hollow plate. A manhole cover groove with a circular structure is opened at the top of the inner wall of the cylinder, and the inner cover of the manhole cover groove is connected to a manhole cover body that fits the manhole cover groove. The beneficial effect of the present invention is that the hollow supporting plate is used to play a good supporting role on the manhole cover body. The hollow supporting plate is fitted into the inside of the positioning groove through the limit block, thereby improving the stability of the manhole cover body and making the manhole cover body have a good anti-fall function. The support rod pushes the top ring to fit into the inside of the circular groove through the joint action of the limit plate and the spring, so that when the manhole cover body is connected to the inside of the manhole cover groove, it has a certain buffering and shock-resistant effect, thereby extending the service life of the manhole cover body, ensuring the safety of pedestrians or motor vehicles, and reducing the maintenance cost of municipal engineering.

[0003] Based on the above, the inventors found the following problems: in order to prevent falling from occurring in the above patent, a receiving hollow plate 15 is installed inside the cylinder 2, and the receiving hollow plate 15 is engaged in the slide 20 to achieve a protective effect. Since manhole covers have different specifications according to different production requirements, and the overall size of the receiving hollow plate 15 in the above patent is relatively fixed, it will lead to poor overall adaptability.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a double-layer manhole cover structure with anti-falling effect for municipal engineering is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] The purpose and effect of the utility model of a double-layer manhole cover structure for preventing falling of municipal engineering are achieved by the following specific technical means:

[0006] A double-layer manhole cover structure for preventing falling in municipal engineering, including a reinforcement plate and a circular grille plate. An installation groove is provided along the edge of the upper end surface of the reinforcement plate. The manhole cover is installed on the reinforcement plate through the installation groove and a shaft pin. A reinforcement groove is welded on the inner wall of the reinforcement plate. A sliding groove is provided on the side wall of the reinforcement groove. A positioning groove is provided at one end of the sliding groove. The circular grille plate is installed on the reinforcement groove through the sliding groove, the positioning groove and an adjustment fixing block.

[0007] Further, a rubber ring is installed on the bottom end surface of the manhole cover, and the rubber ring is made of polyethylene material.

[0008] Further, the adjustment fixing block includes a raised block welded on the side wall of the circular grille plate. A limiting sliding groove is provided on the side wall of the raised block, and a "C"-shaped fixing block is sleeved on the limiting sliding groove.

[0009] Further, a chamber is provided inside the raised block. Limiting grooves are provided on the inner wall of the chamber. A "T"-shaped block is slidably installed between the limiting grooves. One end of the "T"-shaped block is connected to the "C"-shaped fixing block, and a spring is installed on the other side of the "T"-shaped block.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. Through the cooperation of the raised block, the limiting sliding groove, the "C"-shaped fixing block, the "T"-shaped block and the spring, when the circular grille plate needs to be installed between reinforcement plates with different diameters, the spring will squeeze the "T"-shaped block, and the other end of the "T"-shaped block is connected to the "C"-shaped fixing block. Therefore, the "C"-shaped fixing block can slide on the raised block. By the sliding of the raised block, the overall diameter length between the adjustment fixing block and the circular grille can be changed, so that the circular grille can be assembled between reinforcement plates with different specifications, improving the overall adaptability.

[0012] 2. Through the design of the rubber ring, the generation of abnormal noise between the manhole cover and the reinforcement plate can be reduced, and at the same time, it has a certain buffering force. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded schematic view of a double-layer manhole cover structure for preventing falling in municipal engineering of the utility model.

[0014] Figure 2 is an installation schematic view of the fixing plate and the circular grille plate of a double-layer manhole cover structure for preventing falling in municipal engineering of the utility model.

[0015] Figure 3 is a plan schematic view of the adjustment fixing block of a double-layer manhole cover structure for preventing falling in municipal engineering of the utility model.

[0016] Figure 4It is a double - layer manhole cover structure for preventing falling in municipal engineering of the present utility model Figure 1 The enlarged schematic diagram of point A in

[0017] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0018] 1. Reinforcement plate; 2. Manhole cover; 3. Rubber ring; 4. Circular grille plate; 5. Adjusting and fixing block; 6. Reinforcement groove; 7. Sliding groove; 8. Positioning groove; 501. Protruding block; 502. Limit sliding groove; 503. "匚"-shaped fixing block; 504. "T"-shaped block; 505. Spring Specific implementation manners

[0019] The following further describes the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model

[0020] In the description of the present utility model, unless otherwise specified, "multiple" means two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations

[0022] Embodiment:

[0023] As shown in Figure 1 to Figure 4 shown:

[0024] The utility model provides an anti-falling double-layer manhole cover structure for municipal engineering, which includes a reinforcement plate 1 and a circular grille plate 4. An installation groove is formed along the edge of the upper end surface of the reinforcement plate 1. The reinforcement plate 1 is installed with a manhole cover 2 through the installation groove and a shaft pin. A reinforcement groove 6 is welded on the inner wall of the reinforcement plate 1. A sliding groove 7 is formed on the side wall of the reinforcement groove 6. A positioning groove 8 is formed at one end of the sliding groove 7. The circular grille plate 4 is installed on the reinforcement groove 6 through the sliding groove 7, the positioning groove 8 and an adjusting fixing block 5.

[0025] Among them, a rubber ring 3 is installed on the bottom end surface of the manhole cover 2. The rubber ring 3 is made of polyethylene material. Through the design of the rubber ring 3, abnormal noise generated between the manhole cover 2 and the reinforcement plate 1 can be reduced, and at the same time, it has a certain buffering force.

[0026] Among them, the adjusting fixing block 5 includes a convex block 501 welded on the side wall of the circular grille plate 4. A limiting sliding groove 502 is formed on the side wall of the convex block 501, and a "C"-shaped fixing block 503 is sleeved on the limiting sliding groove 502.

[0027] Among them, a cavity is formed inside the convex block 501. Limiting grooves are formed on the inner wall of the cavity. A "T"-shaped block 504 is slidably installed between the limiting grooves. One end of the "T"-shaped block 504 is connected to the "C"-shaped fixing block 503. A spring 505 is installed on the other side of the "T"-shaped block 504. By using the convex block 501, the limiting sliding groove 502, the "C"-shaped fixing block 503, the "T"-shaped block 504 and the spring 505 in cooperation, when the circular grille plate 4 needs to be installed between reinforcement plates 1 with different diameters, the spring 505 will squeeze the "T"-shaped block 504, and the other end of the "T"-shaped block 504 is connected to the "C"-shaped fixing block 503. Therefore, the "C"-shaped fixing block 503 can slide on the convex block 501. Through the sliding of the convex block 501, the overall diameter length between the adjusting fixing block 5 and the circular grille 4 can be changed, and then the circular grille 4 can be assembled between reinforcement plates 1 with different specifications, improving the overall adaptability.

[0028] The specific usage method and function of this embodiment:

[0029] Since manhole covers are processed into different sizes according to production requirements, the circular grille nets installed inside them need to be installed in manholes of different sizes. To improve the overall adaptability, the raised blocks 501, limiting chutes 502, "C"-shaped fixing blocks 503, "T"-shaped blocks 504 and springs 505 are used in combination. When the circular grille plate 4 needs to be installed between the reinforcement plates 1 of different diameters, the spring 505 will squeeze the "T"-shaped block 504, and the other end of the "T"-shaped block 504 is connected to the "C"-shaped fixing block 503. Therefore, the "C"-shaped fixing block 503 can slide on the raised block 501. By sliding the raised block 501, the overall diameter length between the fixing block 5 and the circular grille net 4 can be changed, so that the circular grille net 4 can be assembled between the reinforcement plates 1 of different specifications, improving the overall adaptability.

[0030] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A double-layer manhole cover structure for preventing falling for municipal engineering, comprising a reinforcement plate (1) and a circular grille plate (4), characterized in that: An installation groove is provided along the edge of the upper end surface of the reinforcement plate (1). The manhole cover (2) is installed on the reinforcement plate (1) through the installation groove by a shaft pin. A reinforcement groove (6) is welded to the inner wall of the reinforcement plate (1). A sliding groove (7) is provided on the side wall of the reinforcement groove (6). A positioning groove (8) is provided at one end of the sliding groove (7). The circular grille plate (4) is installed in the reinforcement groove (6) through the sliding groove (7), the positioning groove (8) and the adjusting fixed block (5).

2. The anti-fall double-layer manhole cover structure for municipal engineering according to claim 1, characterized in that: A rubber ring (3) is installed on the bottom end surface of the manhole cover (2), and the rubber ring (3) is made of polyethylene material.

3. The anti-fall double-layer manhole cover structure for municipal engineering according to claim 1, characterized in that: The adjusting fixed block (5) includes a protruding block (501) welded to the side wall of the circular grille plate (4). A limiting sliding groove (502) is provided on the side wall of the protruding block (501), and a "C"-shaped fixed block (503) is sleeved on the limiting sliding groove (502).

4. The anti-fall double-layer manhole cover structure for municipal engineering according to claim 3, characterized in that: A chamber is provided inside the protruding block (501). A limiting groove is provided on the inner wall of the chamber. A "T"-shaped block (504) is slidably installed between the limiting grooves. One end of the "T"-shaped block (504) is connected to the "C"-shaped fixed block (503), and a spring (505) is installed on the other side of the "T"-shaped block (504).

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