Municipal well lid capable of being quickly disassembled and assembled

Abstract

The utility model discloses a municipal manhole cover capable of being quickly assembled and disassembled, which relates to the technical field of municipal manhole covers, and comprises a manhole ring, a manhole cover body clamped in the manhole ring, a plurality of fixing rods arranged in the radial direction of the manhole cover body in a penetrating manner, grooves formed in the manhole ring and corresponding to the fixing rods, and a rotating shaft rotationally connected with the center of the manhole cover body, a plurality of protruding blocks are fixedly connected to the outer side wall of the rotating shaft, a reset plate is fixedly connected to the fixing rod, a reset spring is arranged between the reset plate and the edge of the well lid body, and when one end of the fixing rod is inserted into the groove, the protruding blocks abut against the other end of the fixing rod. According to the device, the fixing rod can be inserted into the groove or pulled out of the groove only by rotating the rotating shaft, rapid disassembly and assembly of the well lid body and the well ring are achieved, operation is easy, time is saved, and working efficiency is improved; by arranging the handle, the rotating shaft can be rotated more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal manhole covers, in particular to a municipal manhole cover that can be quickly disassembled and assembled. Background Art

[0002] There are many underground pipelines in urban construction, such as sewers, underground gas pipelines, tap water pipelines, power pipelines, etc. These pipelines must have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover. Manhole covers are usually made of cement, metal, reinforced plastic and other materials, and are mainly round and square in shape. The purpose of the underground pipeline, the maintenance unit and telephone number are generally indicated on the manhole cover. With the rapid development of cities, the demand for manhole covers has gradually increased. However, the municipal manhole covers on the current market have some shortcomings, such as:

[0003] Most of the manhole covers on the current market are installed by directly fitting the manhole ring and the manhole cover. However, this installation method mainly relies on the gravity of the manhole cover itself for fixed installation. There is no stable connection between the manhole ring and the manhole cover. For manhole covers made of lighter materials, they are prone to loosening and dislocation when the water flow is too large or the wind force is too strong. When the vehicle speed is too fast, there is also the possibility of being blown away by the air pressure generated by the fast vehicle. The installation stability is poor and there are certain safety hazards.

[0004] Chinese patent CN201720293131.2 proposes "An Integrated Structure of a Manhole Cover and Municipal Road," with publication number CN206616663U. The device comprises a municipal road body, a first chute defined transversely within the plate, and a spring disposed within the first chute. A plug-in plate is disposed at the inner end of the spring. Two sets of plug-in holes are defined on the left and right sides of the manhole cover, with the two ends of the plug-in plate disposed within the first chute and the plug-in holes, respectively. A second chute is defined at the top of each plate for a manual lever to slide left and right. A groove is defined at the junction of the manhole cover and the top of the plate, and a cover plate is disposed within each groove. A third chute is defined transversely at the bottom of each cover plate, and the top end of the hand lever passes through the second chute and resides within the third chute. However, this device has several problems: During assembly and disassembly, workers must simultaneously activate the hand levers to release the manhole cover. This can even require the cooperation of multiple workers to simultaneously return multiple hand levers to their original positions, making the operation cumbersome and time-consuming. Utility Model Content

[0005] The purpose of the utility model is to provide a municipal manhole cover that can be quickly disassembled and assembled. The device can be disassembled and assembled with simple operations, which is simple to operate and saves time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a municipal manhole cover that can be quickly disassembled and assembled, comprising a manhole ring, a manhole cover body clamped in the manhole ring, a plurality of fixing rods passing through the radial direction of the manhole cover body, a groove corresponding to the fixing rod is provided on the manhole ring, the center of the manhole cover body is connected to a rotating shaft, a plurality of protrusions are fixedly connected to the outer wall of the rotating shaft, a reset plate is fixedly connected to the fixing rod, a reset spring is provided between the reset plate and the edge of the manhole cover body, and when one end of the fixing rod is inserted into the groove, the protrusion conflicts with the other end of the fixing rod.

[0007] By adopting the above technical solution, the user only needs to rotate the rotating shaft to insert the fixing rod into the groove or pull it out from the groove, thereby realizing the rapid disassembly and assembly of the manhole cover body and the manhole ring. The operation is simple, time is saved, and work efficiency is improved.

[0008] As an optimal technical solution of the present utility model, the rotating shaft includes a support column fixedly connected to the center of the manhole cover body, a sleeve rotatably connected to the support column, a retaining ring fixedly connected to the inner side wall of the sleeve, a retaining groove matching the retaining ring is provided on the support column, and the protrusion is fixedly connected to the circumferential wall of the sleeve.

[0009] The above technical solution has a simple structure and can prevent the sleeve from separating from the support column.

[0010] As a preferred technical solution of the present invention, the upper surface of the sleeve is flush with the upper surface of the manhole cover body, the upper surface of the sleeve is concave inward, and the handle is fixedly connected to the concave portion of the sleeve.

[0011] The adoption of the technical solution makes it easier for workers to rotate the sleeve.

[0012] As a preferred technical solution of the present invention, a limiting rod is fixedly connected to the circumferential wall of the sleeve, and when the protrusion conflicts with the fixing rod, the limiting rod fits with the fixing rod.

[0013] By adopting the above technical solution, when the protrusion conflicts with the fixing rod, the staff is prevented from excessively rotating the sleeve so that the protrusion no longer conflicts with the fixing rod.

[0014] As a preferred technical solution of the present invention, the protrusion is hemispherical, and the end of the fixing rod close to the protrusion is a spherical structure.

[0015] With the above technical solution, when the protrusion contacts the fixing rod, the protrusion can be easily cut into the fixing rod from the edge of the fixing rod, so that the protrusion contacts the end of the fixing rod.

[0016] As a preferred technical solution of the present invention, the reset spring is sleeved on the telescopic rod, the head end of the telescopic rod is fixedly connected to the reset plate, and the tail end of the telescopic rod is fixedly connected to the edge of the manhole cover body.

[0017] By adopting the above technical solution, the reset spring is compressed or stretched along the axis line of the telescopic rod, thereby preventing the reset spring from bending and thus becoming ineffective.

[0018] As a preferred technical solution of the present invention, a plurality of drainage holes are provided on the top of the manhole cover body, and the drainage holes pass through the manhole cover body to form holes.

[0019] The adoption of the technical solution facilitates rainwater to flow into the sewer from the drain hole.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1) This device only needs to rotate the rotating shaft, and the fixed rod can be inserted into or pulled out of the groove, realizing the rapid disassembly and assembly of the manhole cover body and the manhole ring. The operation is simple, time is saved, and work efficiency is improved.

[0022] 2) This device is equipped with a handle to make it easier to rotate the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a top-view cross-sectional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0025] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0026] Figure 4 For the utility model Figure 1 A is an enlarged structural diagram of FIG. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The utility model provides a technical solution: a municipal manhole cover that can be quickly disassembled and assembled, including a manhole ring 2, a manhole cover body 1 clamped in the manhole ring 2, a plurality of fixing rods 6 are penetrated along the radial direction of the manhole cover body 1, and a through opening for the fixing rod 6 to slide through is provided on the manhole ring 2, and a groove 21 corresponding to the fixing rod 6 is provided on the manhole ring 2. The number of grooves 21 corresponds to the number of fixing rods 6. The center of the manhole cover body 1 is rotatably connected to the rotating shaft 3, and a plurality of protrusions 5 are fixedly connected to the outer wall of the rotating shaft 3. A reset plate 61 is fixedly connected to the fixing rod 6, and a reset spring 62 is provided between the reset plate 61 and the edge of the manhole cover body 1. The head end of the reset spring 62 is fixedly connected to the reset plate 61, and the tail end of the reset spring 62 is fixedly connected to the bottom end of the through opening. When one end of the fixing rod 6 is inserted into the groove 21, the protrusion 5 conflicts with the other end of the fixing rod 6.

[0029] The rotating shaft 3 includes a support column 31 fixedly connected to the center of the manhole cover body 1, a sleeve 32 rotatably connected to the support column 31, a retaining ring 33 fixedly connected to the inner side wall of the sleeve 32, a retaining groove matching the retaining ring 33 is provided on the support column 31, and the protrusion 5 is fixedly connected to the circumferential wall of the sleeve 32.

[0030] In order to reduce the interference of external force on the sleeve 32 and reduce the flexibility of the sleeve 32 in rotation, a rubber strip is set in the gap between the inner wall of the sleeve 32 and the outer wall of the support column 31 to increase the friction of the sleeve 32 in rotation.

[0031] The upper surface of the sleeve 32 is flush with the upper surface of the manhole cover body 1 , and the upper surface of the sleeve 32 is concave inwardly, and the handle 34 is fixedly connected to the concave portion of the sleeve 32 .

[0032] A limiting rod 7 is fixedly connected to the circumferential wall of the sleeve 32 . When the protrusion 5 contacts the fixing rod 6 , the limiting rod 7 fits the fixing rod 6 .

[0033] A circularly arranged support block 29 is fixedly connected to the inner wall of the manhole ring 2, or the support block 29 is a ring structure. After the manhole cover body 1 is installed into the manhole ring 2, the support block 29 first supports the manhole cover body 1 and then connects the manhole cover body 1 to the manhole ring 2.

[0034] The protrusion 5 is hemispherical, and the end of the fixing rod 6 close to the protrusion 5 is a spherical structure.

[0035] The return spring 62 is sleeved on the telescopic rod 69, the head end of the telescopic rod 69 is fixedly connected to the reset plate 61, and the tail end of the telescopic rod 69 is fixedly connected to the edge of the manhole cover body 1. In this embodiment, the telescopic rod 69 adopts a spring column; the return spring 62 is sleeved on the fixed rod 6, the head end of the return spring 62 is fixedly connected to the reset plate 61, and the tail end of the return spring 62 is fixedly connected to the bottom end of the through opening, which can also achieve the same effect.

[0036] A plurality of drainage holes 8 are provided on the top of the manhole cover body 1 , and the drainage holes 8 pass through the manhole cover body 1 to form holes.

[0037] Working principle: When using the quickly disassembled municipal manhole cover, first fit the manhole cover body 1 and the manhole ring 2 together so that the support block 29 can support the manhole cover body 1. Then, the sleeve 32 is rotated by the handle 34. Due to the rotation of the sleeve 32, the protrusion 5 will also move accordingly, so that the protrusion 5 fits with the end of the fixing rod 6. The limiting rod 7 fits with the side wall of the fixing rod 6, and the fixing rod 6 is squeezed out of the manhole cover body 1, so that the fixing rod 6 is connected to the groove 11 inside the manhole ring 2.

[0038] When the user wants to remove the manhole cover, he only needs to rotate the sleeve 32 in the opposite direction to move the protrusion 5 away from the bottom of the fixing rod 6. At this time, the reset spring 62 will push the reset plate 61. Since the reset plate 61 is fixedly connected to the fixing rod 6, the fixing rod 6 will also be reset to the inside of the manhole cover body 1.

[0039] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A municipal manhole cover that can be quickly disassembled and assembled, comprising a manhole ring (2) and a manhole cover body (1) clamped in the manhole ring (2), characterized in that: A plurality of fixing rods (6) are provided along the radial direction of the manhole cover body (1); a groove (21) corresponding to the fixing rod (6) is provided on the manhole ring (2); the center of the manhole cover body (1) is rotatably connected to the rotating shaft (3); a plurality of protrusions (5) are fixedly connected to the outer wall of the rotating shaft (3); a reset plate (61) is fixedly connected to the fixing rod (6); a reset spring (62) is provided between the reset plate (61) and the edge of the manhole cover body (1); when one end of the fixing rod (6) is inserted into the groove (21), the protrusion (5) contacts the other end of the fixing rod (6).

2. The quickly detachable municipal manhole cover according to claim 1, characterized in that: The rotating shaft (3) comprises a support column (31) fixedly connected to the center of the manhole cover body (1), a sleeve (32) rotatably connected to the support column (31), a snap ring (33) fixedly connected to the inner side wall of the sleeve (32), a snap groove matching the snap ring (33) is provided on the support column (31), and the protrusion (5) is fixedly connected to the circumferential wall of the sleeve (32).

3. The quickly detachable municipal manhole cover according to claim 2, characterized in that: The upper surface of the sleeve (32) is flush with the upper surface of the manhole cover body (1), the upper surface of the sleeve (32) is recessed inward, and the recessed portion of the sleeve (32) is fixedly connected to the handle (34).

4. The quickly detachable municipal manhole cover according to claim 2, characterized in that: A limiting rod (7) is fixedly connected to the circumferential wall of the sleeve (32), and when the protrusion (5) and the fixing rod (6) come into conflict, the limiting rod (7) and the fixing rod (6) fit together.

5. The quickly detachable municipal manhole cover according to any one of claims 1 to 4, characterized in that: The protrusion (5) is hemispherical, and the end of the fixing rod (6) close to the protrusion (5) is a spherical structure.

6. The quickly detachable municipal manhole cover according to any one of claims 1 to 4, characterized in that: The reset spring (62) is sleeved on the telescopic rod (69), the head end of the telescopic rod (69) is fixedly connected to the reset plate (61), and the tail end of the telescopic rod (69) is fixedly connected to the edge of the manhole cover body (1).

7. The quickly detachable municipal manhole cover according to any one of claims 1 to 4, characterized in that: A plurality of drainage holes (8) are provided on the top of the manhole cover body (1), and the drainage holes (8) pass through the manhole cover body (1) to form holes.

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