Well lid anti-sinking structure

Abstract

The utility model provides a well lid anti-sinking structure. The well lid anti-sinking structure comprises a well lid and a well ring arranged on the periphery of the well lid. The manhole cover is characterized in that a bottom frame is arranged on the lower side of the manhole cover, an inner ring is arranged below the bottom frame, and the inner ring is fixedly connected with the manhole ring; wherein a clamping column is arranged on the lower side of the bottom frame, a clamping groove matched with the clamping column is formed in the inner ring, and the lower end of the clamping column is clamped in the clamping groove through an elastic locking piece. The well lid anti-sinking structure can solve the problem that an existing well lid (especially the middle portion) is prone to sinking.

Description

Technical Field

[0001] In the field of manhole cover structure technology, this utility model relates to a manhole cover anti-sinking structure. Background Technology

[0002] Manhole covers are an important facility connecting underground pipelines and surface traffic on urban roads, and they are numerous and widely distributed.

[0003] The existing manhole cover structure still has drawbacks in use. Due to the large number of vehicles on the road, the manhole covers may sink under the repeated pressure of the vehicles. The sinking manhole covers will make the road surface uneven and create depressions. This will make it easy for vehicles to bump when they pass over them, and in severe cases, it may even cause the vehicles to lose control and cause traffic accidents.

[0004] Based on the aforementioned technical problems, there is an urgent need for a solution that can effectively prevent manhole covers from sinking. Utility Model Content

[0005] In view of the above problems, the purpose of this utility model is to provide a manhole cover anti-sinking structure to solve the problem that existing manhole covers (especially the middle part) are prone to sinking.

[0006] The manhole cover anti-sinking structure provided by this utility model includes a manhole cover and a manhole ring disposed around the manhole cover; characterized in that a base frame is disposed on the lower side of the manhole cover, and an inner ring is disposed below the base frame, the inner ring being fixedly connected to the manhole ring; wherein,

[0007] A locking post is provided on the lower side of the base frame, and a locking groove adapted to the locking post is formed on the inner ring. The lower end of the locking post is locked in the locking groove by an elastic locking member.

[0008] In addition, a preferred structure is provided with a pressing block on the side of the locking post, a connecting plate corresponding to the pressing block on the inner ring, an elastic member on the side of the connecting plate away from the locking post, an inclined locking block connected to the side of the elastic member away from the connecting plate, and a locking slot adapted to the inclined locking block pre-set on the well ring, and the inclined locking block is fixedly connected to the well ring through the locking slot.

[0009] Furthermore, in a preferred configuration, at least two connecting plates are provided around the locking post; and each connecting plate has an inclined locking block connected to its end away from the locking post via an elastic member.

[0010] Furthermore, the preferred structure is that each of the oblique blocks has an oblique triangular shape.

[0011] Furthermore, in a preferred configuration, the elastic locking element comprises a spring and a wedge; wherein,

[0012] A slot is provided on the inner ring, the spring is limited in the slot, one end of the inclined block is connected to the spring, and the other end of the inclined block extends into the slot.

[0013] Furthermore, in a preferred configuration, a fixing block is fixed at the lower end of the base frame, the outer end of the inclined block is located above the fixing block and abuts against the side wall of the base frame, and the fixing block is limited to the bottom of the slot by the inclined block.

[0014] Furthermore, in a preferred configuration, the fixing block has a dome-shaped structure, and the end of the inclined block near the locking post has an inverted triangular structure.

[0015] Furthermore, in a preferred configuration, at least two of the inclined blocks are provided around the card post; and the inclined blocks are distributed at equal intervals around the card post.

[0016] In addition, a preferred structure is that a rotating shaft is provided on one side of the manhole cover, and the manhole cover is movably connected to the manhole ring through the rotating shaft.

[0017] Furthermore, a preferred structure is that pull holes are provided on the upper surface of the manhole cover.

[0018] Compared with the prior art, the above-mentioned manhole cover anti-sinking structure according to this utility model has the following beneficial effects:

[0019] The anti-sinking structure for manhole covers provided by this utility model, through the setting of components such as a base frame, locking posts, inner ring, connecting plate, and inclined locking block, enables the manhole cover to have an anti-sinking function for better use. Specifically, the locking posts on the manhole cover press down on the elastic locking element to lock the manhole cover and the manhole ring in place. At the same time, the pressing block on the locking posts presses down on the connecting plate, so that the connecting plate generates a downward force on the inclined locking block through the elastic element. Thus, the interaction between the base frame on the manhole cover and the inner ring on the manhole ring drives the inclined locking block to pull the manhole ring down to press the ground. This can effectively release the pressure of heavy objects on the middle of the manhole cover to the ground through the manhole ring in a timely manner, so that the manhole cover can avoid sinking or even damage caused by long-term heavy pressure. Attached Figure Description

[0020] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of this invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the anti-sinking structure of the manhole cover provided by this utility model;

[0023] Figure 2A schematic diagram of the base frame structure provided by this utility model;

[0024] Figure 3 A schematic diagram of the oblique section structure provided for this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the inclined card block structure provided by this utility model.

[0027] In the diagram: 1. Manhole cover; 2. Rotating shaft; 3. Manhole ring; 4. Base frame; 5. Inner ring; 6. Locking post; 7. Inclined block; 8. Spring; 9. Connecting plate; 10. Inclined locking block; 111. Elastic component; 11. Fixing block; 13. Pressing block.

[0028] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0029] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Figure 1 This invention illustrates the anti-sinking structure for manhole covers provided by this utility model. Figure 2 This invention illustrates the base frame structure provided by the present invention. Figure 3The oblique section structure provided by this utility model is shown. Figure 4 It shows Figure 3 Enlarged structure at point A in the middle, Figure 5 The oblique card block structure provided by this utility model is shown.

[0032] like Figures 1 to 5 As shown, this utility model provides a manhole cover 1 anti-sinking structure, including a manhole cover 1, a manhole ring 3 set around the manhole cover 1, a rotating shaft 2 connected to one side of the manhole cover 1, the manhole cover 1 is rotatably connected to the manhole ring 3 through the rotating shaft 2, and a pull hole is provided on the upper surface of the manhole cover 1; in actual use, the manhole cover 1 is opened by pulling the manhole cover 1 through the pull hole.

[0033] Specifically, a base frame 4 is provided on the lower side of the manhole cover 1, and an inner ring 5 is provided below the base frame 4. The inner ring 5 is fixedly connected to the manhole ring 3. A locking post 6 is provided on the lower side of the base frame 4, and a locking groove adapted to the locking post 6 is formed on the inner ring 5. The lower end of the locking post 6 is locked in the locking groove by an elastic locking member. The elastic locking member includes a spring 8 and a wedge block 7. A slot is opened on the inner ring 5, the spring 8 is limited in the slot, one end of the wedge block 7 is connected to the spring 8, and the other end of the wedge block 7 extends into the locking groove.

[0034] In addition, a pressing block 13 is provided on the side of the locking post 6, and a connecting plate 9 corresponding to the pressing block 13 is provided on the inner ring 5. An elastic member 111 is provided on the side of the connecting plate 9 away from the locking post 6, and an inclined locking block 10 is connected on the side of the elastic member 111 away from the connecting plate 9. A slot adapted to the inclined locking block 10 is pre-set on the well ring 3, and the inclined locking block 10 is fixedly connected to the well ring 3 through the slot.

[0035] In practice, when the manhole cover 1 is pressed down by a heavy object, the inclined block 7 is pushed down by the locking post 6 on the manhole cover 1, and then the lower end of the manhole cover 1 is locked into the locking groove, so that the manhole cover 1 and the manhole ring 3 are locked together and fixed. During the locking process, the pressing block 13 on the locking post 6 will also press down the connecting plate 9, and then the inclined locking block 10 will be pulled down by the elastic element 111. The inclined locking block 10 pulls the manhole ring 3 down and presses it down on the ground through the force between the manhole cover 1 and the inner ring 5. In this way, the entire manhole cover 1 device can lock together and transfer the weight brought by the heavy object to the manhole ring 3 through the base frame 4 and the inner ring 5, and then release it to the ground. This avoids the problem of the manhole cover 1 sinking due to long-term heavy pressure. This design not only ensures the stability and safety of the manhole cover 1, but also effectively extends its service life and prevents the ground from collapsing or the manhole cover 1 from being damaged due to heavy pressure.

[0036] It should be noted that the inner ring 5 is fixedly connected to the well ring 3, and a fixing block 11 is fixed at the lower end of the base frame 4. The outer end of the inclined block 7 is located above the fixing block 11 and abuts against the side wall of the base frame 4. The fixing block 11 is limited to the bottom of the slot by the inclined block 7. Furthermore, the fixing block 11 can be configured as a dome-shaped structure, and the end of the inclined block 7 near the locking post 6 is an inverted triangular structure. With this design, the fixing block 11 can effectively push the inclined block 7 away during the downward movement, and then the inclined block 7 can block the fixing block 11 at the bottom of the slot.

[0037] It should be noted that multiple (at least two) connecting plates 9 can be set around the locking post 6; and each connecting plate 9 has an inclined locking block 10 connected to the end away from the locking post 6 by an elastic member 111. The multiple inclined locking blocks 10 are connected to the locking slots at different positions of the well ring 3; and each inclined locking block 10 can be designed to be in the shape of an oblique triangle. By setting multiple inclined locking blocks 10, and designing the shape of these inclined locking blocks 10 to be oblique triangles, the stability of the well cover 1 can be effectively enhanced, making it more stable during the sinking process.

[0038] Furthermore, multiple (at least two) inclined blocks 7 can be set around the locking post 6; and the inclined blocks 7 are evenly distributed around the locking post 6, such as... Figure 1 , Figure 5 As shown, multiple springs 8 and inclined blocks 7 are provided. Furthermore, the shape of the inclined block 7 (inverted triangle at the end) is adapted to the outer wall (spherical dome) of the fixing block 11, which makes the movement of the fixing block 11 smoother and effectively improves the convenience of locking and unlocking the fixing block 11.

[0039] The working principle of the anti-sinking structure of the manhole cover 1 provided by this utility model is described in detail below:

[0040] When the manhole cover 1 is in the normally closed state, the locking pin 6 on its base frame 4 is tightly engaged with the inner ring 5, and the fixing block 11 of the locking pin 6 is in the predetermined position. The inclined block 7 is held in the initial position under the elastic force of the spring 8. At the same time, the inclined locking block 10 is also in a ready state under the action of the elastic element 111. When the manhole cover 1 is subjected to external pressure, the base frame 4 will move downward along with the manhole cover 1. During this process, the locking pin 6 on the base frame 4 will move towards the inner ring 5. When the locking pin 6 approaches the inner ring 5 and begins to move, the fixing block 11 will first contact the inclined block 7. Due to the dome-shaped structure of the fixing block 11, The design of the inclined block 7, the inclined surface design of the inclined block 7, and the elastic action of the spring 8 cause the fixed block 11 to push the inclined block 7 to move in the direction of compression of the spring 8, thereby achieving effective engagement between the fixed block 11 and the inclined block 7. As the locking post 6 continues to move downward, the pressing block 13 will apply pressure to the connecting plate 9, causing the elastic element 111 to drive the inclined locking block 10 to move downward, thereby releasing this part of the pressure to the ground through the well ring 3. Through this overall pressing mechanism, the pressure on the well cover 1 is dispersed through the base frame 4 and other structures, thereby ensuring that the well cover 1 will not sink and maintaining its stability and safety.

[0041] As referred above Figures 1 to 5 The manhole cover anti-sinking structure according to the present invention has been described by way of example. However, those skilled in the art should understand that various modifications can be made to the manhole cover anti-sinking structure proposed in the present invention without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A manhole cover anti-sinking structure, comprising a manhole cover and a manhole ring disposed around the periphery of the manhole cover; characterized in that, A base frame is provided on the underside of the manhole cover, and an inner ring is provided below the base frame, the inner ring being fixedly connected to the manhole cover; wherein, A locking post is provided on the lower side of the base frame, and a locking groove adapted to the locking post is formed on the inner ring. The lower end of the locking post is locked in the locking groove by an elastic locking member.

2. The manhole cover anti-sinking structure as described in claim 1, characterized in that, A pressing block is provided on the side of the locking post, and a connecting plate corresponding to the pressing block is provided on the inner ring. An elastic member is provided on the side of the connecting plate away from the locking post, and an inclined locking block is connected on the side of the elastic member away from the connecting plate. A locking slot adapted to the inclined locking block is pre-set on the well ring, and the inclined locking block is fixedly connected to the well ring through the locking slot.

3. The manhole cover anti-sinking structure as described in claim 2, characterized in that, The connecting plate is provided with at least two around the card post; and, Each connecting plate has an inclined locking block connected to the end away from the locking post via an elastic element.

4. The manhole cover anti-sinking structure as described in claim 3, characterized in that, Each of the oblique card blocks has an oblique triangular structure.

5. The manhole cover anti-sinking structure as described in claim 4, characterized in that, The elastic locking element includes a spring and a wedge block; wherein... A slot is provided on the inner ring, the spring is limited in the slot, one end of the inclined block is connected to the spring, and the other end of the inclined block extends into the slot.

6. The manhole cover anti-sinking structure as described in claim 5, characterized in that, A fixing block is fixed at the lower end of the base frame. The outer end of the inclined block is located on the upper side of the fixing block and abuts against the side wall of the base frame. The fixing block is limited to the bottom of the slot by the inclined block.

7. The manhole cover anti-sinking structure as described in claim 6, characterized in that, The fixing block has a dome-shaped structure, and the end of the inclined block near the locking post has an inverted triangular structure.

8. The manhole cover anti-sinking structure as described in claim 7, characterized in that, At least two of the inclined blocks are provided around the perimeter of the locking post; and, The inclined blocks are evenly distributed around the card post.

9. The manhole cover anti-sinking structure as described in any one of claims 1 to 8, characterized in that, A rotating shaft is provided on one side of the manhole cover, and the manhole cover is movably connected to the manhole ring through the rotating shaft.

10. The manhole cover anti-sinking structure as described in claim 1, characterized in that, Pull holes are provided on the upper surface of the manhole cover.

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