Municipal well lid convenient to open

Abstract

The municipal well lid convenient to open comprises a well frame, the top end of the inner side of the well frame is rotationally connected with a well lid body through a rotating shaft, the left end of the inner side of the well frame is slidably connected with a sliding block, the bottom end of the sliding block is provided with a first spring, and the bottom end of the first spring makes contact with the well frame. By arranging a baffle, a push-pull rod, a sliding block, a first spring and a hammer block, when the well lid is difficult to open due to the fact that much silt exists between the well lid and the well frame in the well lid opening process, the baffle is pushed to compress a second spring, then the push-pull rod is rotated to enable the top of the push-pull rod to be disengaged from spiral connection with the sliding block, and then the push-pull rod is pulled out upwards; finally, the push-pull rod is rotated again to enable the bottom of the push-pull rod to be spirally connected with the sliding block again, after the operation is completed, the push-pull rod is pushed and pulled in a reciprocating mode, the sliding block further compresses the first spring in a reciprocating mode and then pushes the hammer block to hammer the left side of the bottom end of the well lid from bottom to top, and the well lid can be rapidly opened conveniently when friction between the well lid and the well frame is large; the operation is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal manhole covers, in particular to a municipal manhole cover which is easy to open. Background Art

[0002] Municipal manhole covers are part of urban infrastructure, used to cover deep wells on roads or in homes to prevent people or objects from falling. Municipal manhole covers are made of a variety of materials, including metal manhole covers, etc. Ductile iron manhole covers are widely used in municipal roads, highways, power communications and other parks due to their strong load-bearing capacity, wear resistance and corrosion resistance. Municipal manhole covers usually adopt a round or square design. In addition to being used as a covering on roads, they also have properties such as pressure resistance, impact resistance and corrosion resistance. With the advancement of the new urbanization process, the municipal manhole cover industry will continue to play an important role and contribute to the construction of urban infrastructure. During the use of existing municipal manhole covers, rainwater will carry mud and sand into the gap between the manhole cover and the manhole frame on rainy days, which will increase the friction between the manhole cover and the manhole frame, which will make the manhole cover difficult to open. Therefore, a municipal manhole cover that is easy to open is proposed to address the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model overcomes the existing defects and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A municipal manhole cover that is easy to open includes a manhole frame, wherein the manhole cover is rotatably connected to the top inner side of the manhole frame via a rotating shaft, a slider is slidably connected to the left inner side of the manhole frame, a first spring is provided at the bottom end of the slider, and the bottom end of the first spring contacts the manhole frame, a hammer block is provided on the right side of the top end of the slider, a push-pull rod is provided at the center of the right inner side of the slider, and the push-pull rod passes through the slider.

[0006] As a further improvement of the utility model, a ball is rotatably connected to the outer edge of the sliding block, and the ball is in contact with the well frame.

[0007] As a further improvement of the utility model, there are two hammer blocks, and the hammer blocks are fixedly connected to the slider via a connecting block, and the hammer blocks are symmetrically arranged on the left side of the bottom end of the manhole cover.

[0008] As a further improvement of the utility model, both upper and lower ends of the outer side of the push-pull rod are provided with external threads, and the portion of the top of the push-pull rod provided with the external threads is spirally connected to the slider.

[0009] As a further improvement of the utility model, a second spring is fixedly connected to the inner side of the manhole cover, the other end of the second spring is fixedly connected to a baffle, and the baffle is slidably connected to the manhole cover, and a fixed block is fixedly connected to the left side of the top end of the baffle.

[0010] As a further improvement of the utility model, an iron block is fixedly connected to the top of the first spring, and the iron block is slidably connected to the slider. A strong magnetic block is adsorbed on the top of the iron block, and the strong magnetic block is fixedly connected to the slider.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. A municipal manhole cover that is easy to open, which is provided with a baffle, a push-pull rod, a slider, a first spring and a hammer block. When there is a lot of mud and sand between the manhole cover and the manhole frame during the process of opening the manhole cover, which makes it difficult to open the manhole cover, the baffle is first pushed to compress the second spring, and then the push-pull rod is rotated to make the top of the push-pull rod and the slider disengage from the spiral connection, and then the push-pull rod is pulled upward, and finally the push-pull rod is rotated again to make the bottom of the push-pull rod and the slider spirally connected together again. After completing the above operations, the push-pull rod is reciprocated to further compress the first spring by the slider, and then the hammer block is pushed from bottom to top to hammer the left side of the bottom end of the manhole cover, which is convenient for quickly opening the manhole cover when the friction between the manhole cover and the manhole frame is large, and the operation is time-saving and labor-saving.

[0013] 2. A municipal manhole cover that is easy to open. By setting a strong magnetic block, an iron block and a first spring, when the first spring is fatigued and deformed after long-term use, the rebound effect of the first spring becomes worse, and then the slider drives the hammer block to hammer the manhole cover under the recovery of the elastic force of the first spring. When the effect becomes worse, the first spring is pulled after the manhole cover is opened to disengage the iron block from the strong magnetic block, which facilitates the removal of the fatigue-deformed first spring for replacement, thereby ensuring the subsequent opening effect of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a municipal manhole cover which is easy to open.

[0016] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a municipal manhole cover which is easy to open.

[0017] Figure 3 The utility model is a schematic diagram of the overhead installation structure of a hammer block for a municipal manhole cover that is easy to open.

[0018] In the figure: 1. well frame; 2. well cover; 3. slider; 4. first spring; 5. ball bearing; 6. hammer block; 7. push-pull rod; 8. second spring; 9. baffle; 10. fixed block; 11. iron block; 12. strong magnetic block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] like Figure 1-3 As shown, a municipal manhole cover which is easy to open comprises a manhole frame 1, wherein the top inner side of the manhole frame 1 is rotatably connected to a manhole cover 2 via a rotating shaft, the left inner side of the manhole frame 1 is slidably connected to a slider 3, the bottom end of the slider 3 is provided with a first spring 4, and the bottom end of the first spring 4 is in contact with the manhole frame 1, a hammer block 6 is provided on the right side of the top end of the slider 3, a push-pull rod 7 is provided at the center of the inner right end of the slider 3, and the push-pull rod 7 passes through the slider 3.

[0022] Example 2

[0023] like Figure 2-3 As shown, in order to solve the problem of large friction between the slider 3 and the well frame 1 when sliding up and down, a ball 5 is rotatably connected to the outer edge of the slider 3, and the ball 5 is in contact with the well frame 1. By arranging the ball 5 in contact with the well frame 1 at the outer edge of the slider 3, large friction between the slider 3 and the well frame 1 is avoided when sliding up and down.

[0024] Example 3

[0025] like Figure 2-3 As shown, in order to solve the problem of poor hammering opening effect of the manhole cover 2, there are two hammer blocks 6, and the hammer blocks 6 are fixedly connected to the slider 3 through a connecting block. The hammer blocks 6 are symmetrically arranged on the left side of the bottom end of the manhole cover 2. By symmetrically arranging two hammer blocks 6 on the left side of the bottom end of the manhole cover 2, the hammering opening effect of the manhole cover 2 is better.

[0026] Example 4

[0027] like Figure 1-2As shown, in order to solve the problem that it is inconvenient to stably connect the push-pull rod 7 and the slider 3 when using and retracting the push-pull rod 7, external threads are provided at both upper and lower ends of the outer side of the push-pull rod 7, and the part with the external threads at the top of the push-pull rod 7 is spirally connected with the slider 3. By providing external threads at the upper and lower ends of the outer side of the push-pull rod 7, when using and retracting the push-pull rod 7, the push-pull rod 7 is spirally connected with the slider 3 by rotating it, which facilitates the stable connection between the push-pull rod 7 and the slider 3.

[0028] Example 5

[0029] like Figure 1-2 As shown, in order to solve the problem that it is inconvenient to remove the push-pull rod 7 from the bottom of the manhole cover 2 when it is necessary to open the manhole cover 2, a second spring 8 is fixedly connected to the inner side of the manhole cover 2, and the other end of the second spring 8 is fixedly connected to a baffle 9, and the baffle 9 is slidably connected to the manhole cover 2, and a fixed block 10 is fixedly connected to the left side of the top end of the baffle 9. When it is necessary to open the manhole cover 2, the baffle 9 is pushed by the fixed block 10 to compress the second spring 8, which facilitates the removal of the push-pull rod 7 from the bottom of the manhole cover 2.

[0030] Example 6

[0031] like Figure 2 As shown, in order to solve the problem of inconvenience in replacing the first spring 4 when the rebound effect of the first spring 4 becomes poor after fatigue deformation, an iron block 11 is fixedly connected to the top of the first spring 4, and the iron block 11 is slidably connected to the slider 3, and a strong magnetic block 12 is adsorbed on the top of the iron block 11, and the strong magnetic block 12 is fixedly connected to the slider 3. When the rebound effect of the first spring 4 becomes poor after fatigue deformation, the iron block 11 is disengaged from the strong magnetic block 12 by pulling the first spring 4, which facilitates the removal of the first spring 4 after fatigue deformation for replacement.

[0032] In this embodiment, when there is a lot of mud and sand between the manhole cover 2 and the manhole frame 1 during the process of opening the manhole cover 2, which makes it difficult to open the manhole cover 2, the baffle 9 is first pushed by the fixed block 10 to compress the second spring 8, and then the push-pull rod 7 is rotated to make the top of the push-pull rod 7 disengage the spiral connection with the slider 3, and then the push-pull rod 7 is pulled upward, and finally the push-pull rod 7 is rotated again to make the bottom of the push-pull rod 7 and the slider 3 spirally connected together. After completing the above operations, the push-pull rod 7 is reciprocated to further compress the first spring 4 by pushing and pulling the push-pull rod 7, and then the hammer block 6 is pushed from bottom to top to hammer the manhole cover. 2, it is convenient to quickly open the manhole cover 2 when the friction between the manhole cover 2 and the manhole frame 1 is large. In the process of using the device, when the first spring 4 is fatigued and deformed after long-term use, the rebound effect of the first spring 4 becomes worse, and then the slider 3 drives the hammer block 6 to hammer the manhole cover 2 under the elastic force recovery of the first spring 4. When the effect becomes worse, the first spring 4 is pulled after the manhole cover 2 is opened to make the iron block 11 disengage from the strong magnetic block 12, so that it is convenient to remove the first spring 4 after fatigue deformation for replacement, thereby ensuring the subsequent opening effect of the manhole cover 2.

[0033] The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A municipal manhole cover that is easy to open, comprising a manhole frame (1), characterized in that: The top inner side of the well frame (1) is rotatably connected to a well cover (2) via a rotating shaft, the left inner side of the well frame (1) is slidably connected to a slider (3), a first spring (4) is provided at the bottom end of the slider (3), and the bottom end of the first spring (4) is in contact with the well frame (1), a hammer block (6) is provided at the right side of the top end of the slider (3), a push-pull rod (7) is provided at the center of the right inner side of the slider (3), and the push-pull rod (7) passes through the slider (3).

2. The municipal manhole cover that is easy to open according to claim 1, characterized in that: A ball (5) is rotatably connected to the outer edge of the slider (3), and the ball (5) is in contact with the well frame (1).

3. The easy-to-open municipal manhole cover according to claim 1, characterized in that: There are two hammer blocks (6), and the hammer blocks (6) are fixedly connected to the slider (3) via a connecting block. The hammer blocks (6) are symmetrically arranged on the left side of the bottom end of the manhole cover (2).

4. The easy-to-open municipal manhole cover according to claim 1, characterized in that: The push-pull rod (7) is provided with external threads at both upper and lower ends of its outer side, and the portion of the push-pull rod (7) provided with the external threads at the top is spirally connected to the slider (3).

5. The easy-to-open municipal manhole cover according to claim 1, characterized in that: A second spring (8) is fixedly connected to the inner side of the manhole cover (2); a baffle (9) is fixedly connected to the other end of the second spring (8); the baffle (9) is slidably connected to the manhole cover (2); a fixed block (10) is fixedly connected to the left side of the top end of the baffle (9).

6. The easy-to-open municipal manhole cover according to claim 1, characterized in that: An iron block (11) is fixedly connected to the top of the first spring (4), and the iron block (11) is slidably connected to the slider (3). A strong magnetic block (12) is adsorbed on the top of the iron block (11), and the strong magnetic block (12) is fixedly connected to the slider (3).

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