Invisible well lid convenient to open

Abstract

The utility model discloses an invisible well lid convenient to open, and relates to the technical field of well lids. The invisible manhole cover comprises an inspection well, an invisible manhole cover body, a through hole, a groove, a clamping groove and a special-shaped hole, a rotating mechanism is arranged on the invisible manhole cover body, a first moving plate is arranged on the outer side of a first connecting seat, and a second moving plate is arranged on the outer side of a second connecting seat. By arranging the rotating plate, the first moving plate, the second moving plate and the spring, when the invisible well lid body is normally used, the first moving plate and the second moving plate are pushed out of the cavity through rotation of the rotating plate, the first moving plate is inserted into the clamping groove, and the invisible well lid body and an inspection well are fixed; and the second moving plate moves to the position above the through hole for hiding, the safety and concealment of the hidden well lid main body in use are improved to a certain degree, and springs can assist in retracting the first moving plate and the second moving plate into the cavity during maintenance of municipal workers.

Description

Technical Field

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

[0002] Invisible manhole covers are municipal products used to cover road manholes to prevent people or objects from falling. In order to ensure that the existence of manhole covers and manholes has as little impact on the city appearance as possible, invisible manhole covers are usually used to make the manhole covers as less protruding as possible. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round and can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys and other places. Municipal workers usually need to open the invisible manhole covers to repair and inspect the situation inside the manholes, so they need an invisible manhole cover that is easy to open.

[0003] Existing invisible manhole covers that are easy to open usually use a corresponding manhole cover hook to insert it into the reserved through hole of the invisible manhole cover, and then pull the invisible manhole cover body to open it. The opening process is relatively convenient, but because the reserved through hole of the invisible manhole cover is exposed to the outside, the concealment and safety are not high, and it may be opened by mistake for unprofessional reasons. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an invisible manhole cover that is easy to open, so as to solve the technical problem that the existing invisible manhole covers that are easy to open have completely exposed through holes and their concealment and safety need to be further improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an invisible manhole cover that is easy to open, comprising a manhole, an invisible manhole cover body, a through hole, a groove, a slot and a special-shaped hole, the invisible manhole cover body is provided with a rotating mechanism, the rotating mechanism comprises a cavity and a rotating shaft, a rotating plate is provided on the rotating shaft, a fixed seat is provided inside the cavity, springs are provided on both sides of the fixed seat, a first connecting seat and a second connecting seat are provided at one end of the spring away from the fixed seat, a first movable plate is provided on the outer side of the first connecting seat, and a second movable plate is provided on the outer side of the second connecting seat.

[0006] By adopting the above technical solution, during normal use of the invisible manhole cover body, the first movable plate and the second movable plate can smoothly extend out of the cavity under the action of the rotating plate. The invisible manhole cover body and the manhole are fixed by combining the first movable plate and the card slot, and the through hole is hidden by the second movable plate, thereby improving the safety of the invisible manhole cover in use.

[0007] Furthermore, the rotating shaft is rotatably connected to the invisible manhole cover body, and the rotating shaft is fixedly connected to the rotating plate.

[0008] By adopting the above technical solution, when a professional tool is used to apply force to the rotating shaft through the special-shaped hole, the rotating shaft can rotate smoothly and drive the rotating shaft fixedly connected thereto to rotate.

[0009] Furthermore, the cavity is communicated with the groove, the through hole is provided at the bottom of the groove, and the side of the cavity close to the first movable plate is communicated with the outside.

[0010] By adopting the above technical solution, the cavity is kept in communication with the groove and the outside world, ensuring that the first movable plate and the second movable plate can be smoothly extended out of the cavity under the action of the rotating plate.

[0011] Furthermore, the first movable plate is adapted to the card slot, and the second movable plate is adapted to the groove.

[0012] By adopting the above technical solution, the first movable plate and the slot have a higher degree of adaptability, so that the first movable plate can smoothly enter the slot under the action of the rotating plate, so that the invisible manhole cover body and the manhole are temporarily fixed.

[0013] Furthermore, the rotating plate is in an "8"-shaped structure, and the rotating plate abuts against the first movable plate and the second movable plate.

[0014] By adopting the above technical solution and the special structural setting of the rotating plate, the rotating plate can simultaneously push the first movable plate and the second movable plate out of the cavity under the rotation of the rotating shaft.

[0015] Furthermore, the first connecting seat is fixedly connected to the first movable plate, and the first connecting seat is fixedly connected to the fixed seat via a spring, and the second connecting seat is fixedly connected to the second movable plate, and the second connecting seat is fixedly connected to the fixed seat via a spring.

[0016] By adopting the above technical solution, when the first movable plate and the second movable plate extend out of the cavity under the push of the rotating plate, the first connecting seat and the second connecting seat fixedly connected to the first movable plate and the second movable plate respectively also move outward accordingly.

[0017] Furthermore, the springs are provided in two groups, each group is provided with two springs, and the two springs are symmetrically arranged.

[0018] By adopting the above technical solution, the first connecting seat and the second connecting seat on both sides of the first movable plate and the second movable plate are connected to the fixed seat through two springs, so that when the first movable plate and the second movable plate are subjected to force, the two first connecting seats and the two second connecting seats can stretch the springs on both sides.

[0019] Furthermore, the inner sides of the first connecting seat and the second connecting seat are both arranged in an arc shape.

[0020] By adopting the above technical solution, the inner arc structure of the first connecting seat and the second connecting seat is arranged so that the rotating plate will not touch the inner side of the first connecting seat and the second connecting seat when rotating.

[0021] Furthermore, the fixing seats are provided in two groups, the two groups of the fixing seats are symmetrically arranged, and the distance between the two groups of the fixing seats is greater than the length of the rotating plate.

[0022] By adopting the above technical solution, two groups of symmetrical fixing seats correspond to two symmetrical springs in each group, ensuring that the springs can act on both sides of the first movable plate and the second connecting seat at the same time.

[0023] Furthermore, the special-shaped hole is opened at the top of the rotating shaft, the outer diameter of the special-shaped hole is circular, and the inner diameter of the special-shaped hole is hexagonal.

[0024] By adopting the above technical solution, the opening position of the special-shaped hole enables municipal workers to apply force to the rotating shaft located in the cavity at the top position after the invisible manhole cover body is closed.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] 1. The utility model sets a rotating plate, a first movable plate, a second movable plate and a spring. During the normal use of the invisible manhole cover body, the first movable plate and the second movable plate are pushed out of the cavity by the rotation of the rotating plate, and the first movable plate is inserted into the slot to fix the invisible manhole cover body to the manhole, and the second movable plate is moved to the top of the through hole for concealment, thereby improving the safety and concealment of the invisible manhole cover body during use to a certain extent. The spring can assist in retracting the first movable plate and the second movable plate into the cavity when municipal staff conduct maintenance.

[0027] 2. The utility model sets a special-shaped hole and utilizes the special structure of the special-shaped hole so that only a professional maintenance tool such as an Allen wrench can be used to apply force to rotate the rotating shaft, so that the first movable plate and the second movable plate can be pushed out by the rotating plate, the invisible manhole cover body is fixed, and the through hole is shielded. In this way, the safety can be further improved and the accidental opening due to non-professional reasons can be avoided as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0029] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0030] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0031] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0032] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure at point B.

[0033] In the figure: 1, manhole; 2, invisible manhole cover body; 3, rotating mechanism; 301, cavity; 302, rotating axis; 303, rotating plate; 304, first movable plate; 305, first connecting seat; 306, second movable plate; 307, second connecting seat; 308, fixed seat; 309, spring; 4, through hole; 5, groove; 6, slot; 7, special-shaped hole. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0035] The following describes an embodiment of the utility model based on its overall structure.

[0036] Embodiment 1:

[0037] An invisible manhole cover that is easy to open, such as Figure 1-Figure 5As shown, it includes a manhole 1, an invisible manhole cover body 2, a through hole 4, a groove 5, a slot 6 and a special-shaped hole 7. A rotating mechanism 3 is arranged on the invisible manhole cover body 2. The rotating mechanism 3 includes a cavity 301 and a rotating shaft 302. A rotating plate 303 is arranged on the rotating shaft 302. A fixed seat 308 is arranged inside the cavity 301. Springs 309 are arranged on both sides of the fixed seat 308. A first connecting seat 305 and a second connecting seat 307 are arranged at one end of the spring 309 away from the fixed seat 308. A first movable plate 304 is arranged on the outer side of the first connecting seat 305, and a second movable plate 306 is arranged on the outer side of the second connecting seat 307, so that during normal use of the invisible manhole cover body 2, the first movable plate 304 and the second movable plate 306 are arranged on the rotating plate 303. Under the action, it extends out of the cavity 301 smoothly, and the combination of the first movable plate 304 and the card slot 6 is used to fix the invisible manhole cover body 2 and the manhole 1, and the second movable plate 306 is used to hide the through hole 4, so as to improve the safety of the invisible manhole cover in use. When the municipal staff needs to inspect the manhole 1, the rotating shaft 302 is rotated. When the rotating plate 303 no longer abuts the first movable plate 304 and the second movable plate 306, the elastic restoring force of the spring 309 is used to retract the first movable plate 304 and the second movable plate 306 into the cavity 301. At this time, the invisible manhole cover body 2 is no longer fixed to the manhole 1, and the through hole 4 used to assist in opening the invisible manhole cover body 2 can also be smoothly exposed to the eyes of the municipal staff, making it convenient for them to open the invisible manhole cover body 2.

[0038] See also Figure 3 , Figure 5 The rotating shaft 302 is rotatably connected to the invisible manhole cover body 2, and the rotating shaft 302 is fixedly connected to the rotating plate 303. When a professional tool is used to apply force to the rotating shaft 302 through the special-shaped hole 7, the rotating shaft 302 can rotate smoothly and drive the rotating shaft 302 fixedly connected to it to rotate. When the rotating shaft 302 contacts the first movable plate 304 and the second movable plate 306, the first movable plate 304 and the second movable plate 306 are gradually pushed out of the cavity 301 as the rotation continues.

[0039] See also Figure 1 , Figure 2 , Figure 3 The cavity 301 is connected with the groove 5, the through hole 4 is opened at the bottom of the groove 5, and the side of the cavity 301 close to the first movable plate 304 is connected with the outside world. The cavity 301 is connected with the groove 5 and the outside world, ensuring that the first movable plate 304 and the second movable plate 306 can be smoothly extended out of the cavity 301 under the action of the rotating plate 303, and the position where the through hole 4 is opened is located at the bottom of the groove 5, so that after the second movable plate 306 extends from the cavity 301 into the groove 5, the through hole 4 can be smoothly concealed.

[0040] See also Figure 1 , Figure 3 The first movable plate 304 is adapted to the slot 6, and the second movable plate 306 is adapted to the groove 5. The first movable plate 304 has a high degree of adaptability to the slot 6, so that the first movable plate 304 can smoothly enter the slot 6 under the action of the rotating plate 303, so that the invisible manhole cover body 2 and the manhole 1 are temporarily fixed. The second movable plate 306 has a high degree of adaptability to the groove 5, so that after the second movable plate 306 extends out of the cavity 301, the process of entering the groove 5 can proceed smoothly.

[0041] Embodiment 2:

[0042] See also Figure 3 , Figure 5 The rotating plate 303 is in an "8"-shaped structure, and the rotating plate 303 is in contact with the first movable plate 304 and the second movable plate 306. The special structural setting of the rotating plate 303 enables the rotating plate 303 to simultaneously push the first movable plate 304 and the second movable plate 306 out of the cavity 301 under the rotation of the rotating shaft 302. Because the rotating plate 303 and the first movable plate 304 and the second movable plate 306 have no substantial connection relationship, when the rotating plate 303 is no longer in contact with the first movable plate 304 and the second movable plate 306 under the rotation of the rotating shaft 302, the first movable plate 304 and the second movable plate 306 can be smoothly retracted into the cavity 301 under the action of the elastic restoring force of the spring 309.

[0043] See also Figure 3 , Figure 5 The first connecting seat 305 is fixedly connected to the first movable plate 304, the first connecting seat 305 is fixedly connected to the fixed seat 308 through a spring 309, the second connecting seat 307 is fixedly connected to the second movable plate 306, and the second connecting seat 307 is fixedly connected to the fixed seat 308 through a spring 309. When the first movable plate 304 and the second movable plate 306 extend out of the cavity 301 under the pushing action of the rotating plate 303, the first connecting seat 305 and the second connecting seat 307, which are respectively fixedly connected to the first movable plate 304 and the second movable plate 306, also move outward accordingly. At this time, the spring 309 connected between the first connecting seat 305, the second connecting seat 307 and the fixed seat 308 is stretched accordingly and accumulates force in the process. When the pushing action of the rotating plate 303 gradually disappears, the elastic restoring force of the spring 309 can act on the first movable plate 304 and the second movable plate 306 through the first connecting seat 305 and the second connecting seat 307.

[0044] See also Figure 3 , Figure 5There are two groups of springs 309, each group of springs 309 is provided with two springs, and the two springs 309 are symmetrically arranged. The first connecting seat 305 and the second connecting seat 307 on both sides of the first movable plate 304 and the second movable plate 306 are connected to the fixed seat 308 through the two springs 309, so that when the first movable plate 304 and the second movable plate 306 are subjected to force, the two first connecting seats 305 and the two second connecting seats 307 can stretch the springs 309 on both sides. When the first movable plate 304 and the second movable plate 306 are no longer subjected to force, the symmetrical springs 309 on both sides can apply force on both sides of the first movable plate 304 at the same time to pull the first movable plate 304 and the second movable plate 306 back smoothly.

[0045] See also Figure 3 , Figure 5 The inner sides of the first connecting seat 305 and the second connecting seat 307 are both arc-shaped. The arc-shaped structure on the inner sides of the first connecting seat 305 and the second connecting seat 307 ensures that the rotating plate 303 will not touch the inner sides of the first connecting seat 305 and the second connecting seat 307 when rotating. The rotation process of the rotating plate 303 is not affected by the first connecting seat 305 and the second connecting seat 307, thereby ensuring the normal operation of the rotating mechanism 3.

[0046] See also Figure 3 , Figure 5 There are two groups of fixed seats 308, which are symmetrically arranged and the distance between the two groups of fixed seats 308 is greater than the length of the rotating plate 303. The two groups of symmetrical fixed seats 308 correspond to two symmetrical springs 309 in each group, ensuring that the springs 309 can act on both sides of the first movable plate 304 and the second connecting seat 307 at the same time. The distance between the two groups of fixed seats 308 ensures that when the longest end of the rotating plate 303 rotates to the inner side of the fixed seat 308, the rotating plate 303 will not touch the inner side of the fixed seat 308, thereby avoiding damage to the rotating plate 303.

[0047] See also Figure 1 , Figure 4 The special-shaped hole 7 is opened at the top of the rotating shaft 302. The outer diameter of the special-shaped hole 7 is circular, and the inner diameter of the special-shaped hole 7 is hexagonal. The opening position of the special-shaped hole 7 enables the municipal staff to apply force to the rotating shaft 302 located in the cavity 301 at the top position after the invisible manhole cover body 2 is closed. The special structural setting of the special-shaped hole 7 makes the rotation of the rotating shaft 302 only able to be driven normally by a professional maintenance tool such as an Allen wrench.

[0048] The implementation principle of the utility model is as follows: first, after putting down the invisible manhole cover body 2 and closing the manhole 1, use a special hexagonal wrench to insert it into the special-shaped hole 7, apply force to rotate the rotating shaft 302, and when the rotating shaft 302 rotates, it drives the rotating plate 303 to rotate. When the longest end of the rotating plate 303 continuously turns outward and begins to contact the first movable plate 304 and the second movable plate 306, apply force to push the first movable plate 304 and the second movable plate 306 out of the cavity 301 until the first movable plate 304 smoothly enters the slot 6, and the second movable plate 306 smoothly enters the groove 5, completely covering the through hole 4, and removes the hexagonal wrench to complete the fixation of the invisible manhole cover body 2 and the manhole 1, and the concealment of the through hole 4; at the same time, the first connecting seat 305 and the second movable plate 306 fixedly connected to the first movable plate 304 and the second movable plate 306 are The connecting seat 307 moves outward and continuously stretches the spring 309 on the fixing seat 308. The spring 309 accumulates force during the stretching process. When the invisible manhole cover body 2 needs to be opened, the hexagonal wrench is used again to rotate the rotating shaft 302 and the rotating plate 303 so that the longest end of the rotating plate 303 is away from the first movable plate 304 and the second movable plate 306. After the first movable plate 304 and the second movable plate 306 are no longer subjected to force, the first connecting seat 305 and the second connecting seat 307 are pulled under the action of the elastic restoring force of the spring 309, so that the first movable plate 304 and the second movable plate 306 are retracted into the cavity 301, and the fixing effect between the invisible manhole cover body 2 and the manhole 1 is released, and the through hole 4 is also exposed; finally, the municipal staff only needs to insert the manhole cover hook into the through hole 4 and lift the invisible manhole cover body 2, thereby opening the manhole 1 and inspecting it.

[0049] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0050] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An invisible manhole cover that is easy to open, characterized in that: The invention comprises a manhole (1), an invisible manhole cover body (2), a through hole (4), a groove (5), a slot (6) and a special-shaped hole (7); the invisible manhole cover body (2) is provided with a rotating mechanism (3); the rotating mechanism (3) comprises a cavity (301) and a rotating shaft (302); a rotating plate (303) is provided on the rotating shaft (302); a fixed seat (308) is provided inside the cavity (301); springs (309) are provided on both sides of the fixed seat (308); a first connecting seat (305) and a second connecting seat (307) are provided at one end of the spring (309) away from the fixed seat (308); a first movable plate (304) is provided on the outer side of the first connecting seat (305); and a second movable plate (306) is provided on the outer side of the second connecting seat (307).

2. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The rotating shaft (302) is rotatably connected to the invisible manhole cover body (2), and the rotating shaft (302) is fixedly connected to the rotating plate (303).

3. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The cavity (301) is connected to the groove (5), the through hole (4) is opened at the bottom of the groove (5), and the side of the cavity (301) close to the first movable plate (304) is connected to the outside.

4. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The first movable plate (304) is adapted to the card slot (6), and the second movable plate (306) is adapted to the groove (5).

5. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The rotating plate (303) is in an "8"-shaped structure, and the rotating plate (303) is in contact with the first movable plate (304) and the second movable plate (306).

6. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The first connecting seat (305) is fixedly connected to the first movable plate (304), the first connecting seat (305) is fixedly connected to the fixed seat (308) via a spring (309), the second connecting seat (307) is fixedly connected to the second movable plate (306), and the second connecting seat (307) is fixedly connected to the fixed seat (308) via a spring (309).

7. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The springs (309) are provided in two groups, each group of the springs (309) is provided with two springs, and the two springs (309) are symmetrically arranged.

8. The easy-to-open invisible manhole cover according to claim 1 is characterized in that: The inner sides of the first connecting seat (305) and the second connecting seat (307) are both arranged in an arc shape.

9. The easy-to-open invisible manhole cover according to claim 1, characterized in that: The fixing seats (308) are provided in two groups, the two groups of fixing seats (308) are symmetrically arranged, and the distance between the two groups of fixing seats (308) is greater than the length of the rotating plate (303).

10. The easy-to-open invisible manhole cover according to claim 1, characterized in that: The special-shaped hole (7) is opened at the top of the rotating shaft (302); the outer diameter of the special-shaped hole (7) is circular, and the inner diameter of the special-shaped hole (7) is hexagonal.

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