Push-pull well lid

Abstract

The present application relates to the technical field of road facilities, in particular to a push-pull type well lid, which comprises a well frame and a well lid, and the well frame and the well lid are both rectangular frames; the inside of the well frame is provided with two left and right tracks, which extend along the front and back directions; the bottom of the well lid is provided with two left and right supporting rods, the bottom of each supporting rod is rotatably provided with a roller, and the roller is located in the track; the bottom of the well frame is provided with a rectangular bottom plate, the rectangular bottom plate has an inner turned edge located in the inside of the well frame, the inside of the well frame is provided with two left and right bent plates, the bent plates are fixedly arranged on the inner turned edge, each track is surrounded by the inner turned edge, the bent plates and the corresponding well frame side wall, the bent plates have supporting plates located above the rollers, the supporting plates extend along the horizontal direction, the supporting plates and the well frame side wall have a gap, when the rollers roll along the tracks forward and backward, the supporting rods slide along the gap, the bottom of the well lid slides along the supporting plates, the pressure of the well lid on the rollers is avoided, and the service life of the push-pull type well lid is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road facilities, in particular to a push-pull type manhole cover. BACKGROUND

[0002] The manhole cover is mainly used for the access hole of underground facilities. In order to facilitate the opening of the manhole cover, a push-pull type manhole cover is usually used.

[0003] The patent document with the announcement number CN214089998U discloses a push-pull type inspection well cover, which comprises a well frame and a well cover slidingly connected to the well frame. The inner walls of the well frame are oppositely distributed with tracks. The well cover is connected with rollers below. The rollers are correspondingly distributed with the tracks and slidingly connected to the tracks along the length direction of the slide. However, when a vehicle or a pedestrian passes above the well cover, the rollers need to bear a large gravity, which can easily cause damage and shorten the service life of the push-pull type manhole cover. SUMMARY

[0004] Therefore, it is necessary to provide a push-pull type manhole cover aiming at the technical problem of low service life of the current push-pull type manhole cover.

[0005] The above-mentioned purpose is achieved by the following technical scheme:

[0006] The push-pull type manhole cover comprises a well frame and a well cover. Both the well frame and the well cover are rectangular frames. The well cover can be completely accommodated in the well frame or slid out of the well frame. The inside of the well frame is provided with two left and right tracks. The tracks extend along the front and back directions. The bottom of the well cover is provided with two left and right support rods. The support rods are inclinedly arranged along the up and down directions. The bottom of each support rod is rotatably provided with a roller. The roller is located in the track and can roll along the track in the front and back directions. The bottom of the well frame is provided with a rectangular bottom plate. The rectangular bottom plate has an inner turned edge located in the inside of the well frame. The inside of the well frame is provided with two left and right bent plates. The vertical section of the bent plate is in the shape of inverted L. The L-shaped opening faces the left or right side wall of the well frame. The bent plate is fixedly arranged on the inner turned edge. Each track is surrounded by the inner turned edge, the bent plate and the corresponding side wall of the well frame. The bent plate has a support plate located above the roller. The support plate extends along the horizontal direction. There is a gap between the support plate and the side wall of the well frame. When the roller rolls along the track in the front and back directions, the support rod slides along the gap. The bottom of the well cover slides along the support plate.

[0007] Further, the rectangular bottom plate also has an outer turned edge located outside the well frame. The outer turned edge is used for concrete pouring.

[0008] Further, the inside of the well frame is also provided with an inclined plate. The inclined plate corresponds to the two left and right tracks. The inclined plate is inclined along the up and down directions. When the roller is separated from the track, it can roll upward along the inclined plate. The lower end surface of the well cover is provided with an inclined surface. The inclined surface is slidingly matched with the inclined plate.

[0009] Further, the well frame is further provided with two left and right limiting plates, the limiting plates correspond to the bending plates one by one and are hinged to the corresponding bending plates, and the limiting plates can rotate around the front and rear axes to limit or unlock the supporting rods.

[0010] Further, the limiting plate is located on the side of the bending plate close to the inclined plate and is L-shaped.

[0011] Further, the well cover is further provided with a handle slidingly arranged thereon, and the handle is used to pull the well cover to slide.

[0012] Further, the upper end surface of the well cover is provided with a placing groove for placing a cement brick.

[0013] Further, the bottom of the inclined plate is provided with reinforcing ribs distributed in the left and right directions.

[0014] Further, the bottom of the well cover is provided with a reinforcing plate located between the two left and right tracks.

[0015] Preferably, the well cover and the well frame are both square.

[0016] The present application has the following advantages:

[0017] The push-pull well cover has the following advantages: first, the well cover can smoothly slide along the track, and when a vehicle or a pedestrian passes above the well cover, the gravity above the well cover acts on the supporting plate of the bending plate, so that the rollers can avoid bearing a large pressure above the well cover, and the service life of the push-pull well cover is prolonged.

[0018] Second, the outer turning edge is provided, which is convenient for pouring concrete thereon and cooperates with the concrete poured around the well frame to stably fix the well frame on the ground.

[0019] Third, the limiting plate is provided, which can limit the sliding of the supporting rod to avoid reverse sliding of the well cover.

[0020] Fourth, the reinforcing plate and the reinforcing ribs are provided to strengthen the rigidity of the well cover and the well frame, so that both of them are not easy to deform.

[0021] Fifth, the bottom of the well cover in the prior art is provided with four rollers, and after the well cover is moved to the ground, the rollers are directly in contact with the ground, so that the friction between the well cover and the ground is small and the well cover is easy to slide reversely, while the bottom of the well cover of the present application is provided with only two rollers on one side, and after the well cover is moved to the ground, the two rollers are in a suspended state, the well cover is directly in contact with the ground to increase the friction, and the well cover is not easy to slide reversely. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A perspective view of a push-pull type manhole cover according to an embodiment of the present application;

[0023] Figure 2 A top view of a push-pull type manhole cover according to an embodiment of the present application;

[0024] Figure 3 A view of a push-pull type manhole cover according to an embodiment of the present application in a closed state;

[0025] Figure 4 A view of a push-pull type manhole cover according to an embodiment of the present application in an opening state;

[0026] Figure 5 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0027] Figure 6 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state; Figure 1 ;

[0028] Figure 7 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state; Figure 2 ;

[0029] Figure 8 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0030] Figure 9 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0031] Figure 10 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0032] Figure 11 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0033] Figure 12 A view of a push-pull type manhole cover according to an embodiment of the present application in a fully open state;

[0034] Wherein:

[0035] 100, manhole cover; 101, handle; 1011, sliding rod; 1012, blocking rod; 102, placing groove; 103, roller; 104, reinforcing plate; 105, invisible groove; 106, inclined surface; 107, supporting rod; 200, well frame; 201, bent plate; 202, rectangular bottom plate; 203, reinforcing rib; 204, inclined plate; 300, limiting plate. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0037] The numbers of components described herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" of the present application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] As Figures 1 to 12As shown, the embodiment of the application provides a push-pull well lid, which comprises a well frame 200 and a well lid 100, and the well frame 200 and the well lid 100 are both rectangular frames; the well lid 100 can be completely accommodated in the well frame 200 or slid out of the well frame 200; the inside of the well frame 200 is provided with two left and right tracks, which extend in the front and back directions; the bottom of the well lid 100 is provided with two left and right support rods 107, which are arranged in an inclined manner in the up and down directions; the bottom of each support rod 107 is rotatably provided with a roller 103, which is located in the track and can roll in the front and back directions of the track; the bottom of the well frame 200 is provided with a rectangular bottom plate 202, which has an inner turned edge located in the inside of the well frame 200; the inside of the well frame 200 is provided with two left and right bent plates 201, which have a vertical section in the shape of an inverted L, and the L-shaped opening faces the left or right side wall of the well frame 200; the bent plate 201 is fixedly arranged on the inner turned edge; each track is surrounded by the inner turned edge, the bent plate 201 and the corresponding side wall of the well frame 200; the bent plate 201 has a support plate located above the roller 103, which extends in the horizontal direction; the support plate has a gap with the side wall of the well frame 200; when the roller 103 rolls in the front and back directions of the track, the support rod 107 slides along the gap, and the bottom of the well lid 100 slides along the support plate.

[0040] As shown in Figure 3 and Figure 5 , when the push-pull well lid is in the closed state and the completely open state, the roller 103 is in a suspended state. As shown in Figure 4 , when the push-pull well lid is in the process of opening, the roller 103 rolls on the rectangular bottom plate 202.

[0041] In this way, when the push-pull well lid is in the process of opening, the well lid 100 can smoothly slide along the track, and when the push-pull well lid is in the closed state or the completely open state, if there is a vehicle or a pedestrian passing above the well lid 100, since the roller 103 is in a suspended state, the gravity above the well lid 100 acts on the support plate of the bent plate 201, so that the roller 103 can avoid bearing a large pressure above the well lid 100, thereby prolonging the service life of the push-pull well lid.

[0042] The rectangular bottom plate 202 also has an outer turned edge located outside the well frame 200. In use, the outer turned edge is placed on the ground, and concrete is poured on the outer turned edge and the positions around the well frame 200, so that the well frame 200 can be stably fixed on the ground.

[0043] As shown in Figure 7As shown, the inside of the well frame 200 is also provided with an inclined plate 204, which corresponds to the left and right tracks, and is inclined in the up-down direction. The roller 103 can roll upwards along the inclined plate 204 after being separated from the track. The lower end surface of the well cover 100 is provided with an inclined surface 106, which is in sliding fit with the inclined plate 204.

[0044] In this way, the well cover 100 is facilitated to move upwards relative to the well frame 200, so as to realize the opening of the well cover 100. Since the bottom of the well cover 100 is provided with only two rollers 103, compared with the prior art in which the bottom of the well cover is provided with four rollers, the well cover 100 is not easy to slide reversely after the roller 103 moves to the inclined plate 204.

[0045] The well frame 200 is also provided with two left and right limiting plates 300, which correspond to the bent plates 201 one by one and are hinged to the respective corresponding bent plates 201. The limiting plate 300 can rotate around the front-rear axis, so as to realize the limiting or unlocking of the support rod 107.

[0046] As shown in Figure 8 , the limiting plate 300 is in the unlocked state. At this time, the well cover 100 can slide smoothly. As shown in Figure 9 , the limiting plate 300 is in the locked state. At this time, the support rod 107 at the bottom of the well cover 100 is limited, so that the well cover 100 cannot slide.

[0047] As shown in Figure 7 , the side of the bent plate 201 close to the inclined plate 204 is provided with only a vertical plate, and the limiting plate 300 is located on the vertical plate on the side of the bent plate 201 close to the inclined plate 204. The limiting plate 300 is L-shaped. Since the roller 103 moves to the inclined plate 204, the well cover 100 is easy to slide reversely under the action of gravity. At this time, the sliding of the support rod 107 is limited by the limiting plate 300, so that the well cover 100 is prevented from sliding reversely.

[0048] The limiting plate 300 is designed in an L shape, which facilitates better blocking of the support rod 107.

[0049] As shown in Figure 1 and Figure 2 , the well cover 100 is also provided with a handle 101 which is slidingly arranged thereon, and the handle 101 is used to pull the well cover 100 to slide. The well cover 100 is provided with a hidden groove 105, and the handle 101 can be hidden in the hidden groove 105. By inserting the fingers into the hidden groove 105, the handle 101 can be touched and pulled out.

[0050] As shown in Figure 12As shown, the handle 101 has two sliding rods 1011. The manhole cover 100 has mounting holes extending in the vertical direction inside. The sliding rods 1011 can slide up and down along the mounting holes. A stop bar 1012 is provided on the sliding rods 1011. The stop bar 1012 cannot pass through the mounting holes, thereby preventing the handle 101 from detaching from the manhole cover 100.

[0051] like Figure 2 As shown, the upper surface of the manhole cover 100 is provided with a placement groove 102, which is used to place cement bricks. In this way, after the manhole cover 100 is opened, cement bricks can be placed in the placement groove 102 to press down the manhole cover 100, ensuring that the manhole cover 100 will not slide and ensuring inspection safety.

[0052] The bottom of the inclined plate 204 is provided with reinforcing ribs 203, and multiple reinforcing ribs 203 are distributed in the left-right direction. The reinforcing ribs 203 can strengthen the rigidity of the inclined plate 204, making the well frame 200 less prone to deformation.

[0053] like Figure 11 As shown, a reinforcing plate 104 is provided at the bottom of the manhole cover 100, and the reinforcing plate 104 is located between the left and right tracks. The reinforcing plate 104 can strengthen the rigidity of the manhole cover 100, making the manhole cover 100 less prone to deformation.

[0054] Preferably, both the manhole cover 100 and the manhole frame 200 are square. This facilitates processing.

[0055] Based on the above embodiments, the usage principle and working process of the embodiments of the present invention are as follows:

[0056] In the initial state, such as Figure 3 As shown, the push-pull manhole cover is in a closed state, at which time the manhole cover 100 is completely contained in the manhole frame 200, and the roller 103 is in a suspended state.

[0057] Then, dig an installation groove in the ground, place the sliding manhole cover horizontally in the installation groove, make the upper surface of the sliding manhole cover flush with the ground, and pour concrete on the outer edge of the rectangular base plate 202 and around the manhole frame 200 to fix the manhole frame 200 stably on the ground.

[0058] When it is necessary to open the manhole cover 100, pull the manhole cover 100 by using the handle 101. For example... Figure 4 As shown, first, make the angle between the manhole cover 100 and the manhole frame 200 30°, then pull the manhole cover 100 to make the roller 103 roll on the rectangular base plate 202. After the roller 103 slides out of the track, it will roll upward along the inclined plate 204, thus realizing the manhole cover 100 detaching from the manhole frame 200. Then rotate the manhole cover 100 to a horizontal position, as shown. Figure 5At this time, the bottom of the well lid 100 can be horizontally supported on the ground, and the roller 103 is again in a suspended state.

[0059] Finally, the limiting plate 300 is rotated from a state of Figure 8 to a state of Figure 9 , so that the limiting plate 300 can limit the well lid 100 and avoid reverse sliding of the well lid 100.

[0060] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present disclosure.

[0061] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A push-pull type manhole cover, characterized by, The well frame and the well cover are both rectangular frames; the well cover can be completely accommodated in or slid out of the well frame; The inside of the well frame is provided with two left and right tracks extending in the front and back directions, the bottom of the well cover is provided with two left and right support rods, the support rods are arranged in an inclined manner in the up and down directions, the bottom of each support rod is rotatably provided with a roller, the roller is located in the track and can roll in the track in the front and back directions; The bottom of the well frame is provided with a rectangular bottom plate, the rectangular bottom plate has an inner turned edge located in the inside of the well frame, the inside of the well frame is provided with two left and right bent plates, the vertical section of the bent plate is in an inverted L shape, the L-shaped opening faces the left or right side wall of the well frame, the bent plate is fixedly arranged on the inner turned edge, each track is surrounded by the inner turned edge, the bent plate and the corresponding side wall of the well frame, the bent plate has a support plate located above the roller, the support plate extends in the horizontal direction, the support plate and the side wall of the well frame have a gap, when the roller rolls in the track in the front and back directions, the support rod slides along the gap, the bottom of the well cover slides along the support plate, the well frame is also provided with two left and right limiting plates, the limiting plate corresponds to the bent plate one by one and is hingedly connected to the corresponding bent plate, the limiting plate can rotate around the front and back axes, thereby limiting or unlocking the support rod, the limiting plate is located on one side of the bent plate close to the inclined plate, and the limiting plate is in an L shape.

2. A push-fit manhole cover according to claim 1, wherein, The rectangular bottom plate also has an outer turned edge located outside the well frame, and the outer turned edge is used for concrete pouring.

3. A push-fit manhole cover according to claim 2, wherein, The inside of the well frame is also provided with an inclined plate corresponding to the two left and right tracks, the inclined plate is inclined in the up and down directions, and the roller can roll upward along the inclined plate after being separated from the track, and the lower end surface of the well cover is provided with an inclined surface, and the inclined surface is in sliding cooperation with the inclined plate.

4. The push and pull type manhole cover according to claim 2, wherein A handle is also slidably arranged on the well cover, and the handle is used to pull the well cover to slide.

5. The push-and-pull type manhole cover according to claim 1, wherein The upper end surface of the well cover is provided with a placing groove, and the placing groove is used to place cement bricks.

6. The push and pull type manhole cover according to claim 3, wherein The bottom of the inclined plate is provided with a reinforcing rib, and the reinforcing rib is distributed in the left and right directions.

7. The push-and-pull type manhole cover according to claim 1, wherein The bottom of the well cover is provided with a reinforcing plate located between the two left and right tracks.

8. The push-and-pull type manhole cover according to claim 1, wherein The well cover and the well frame are both square.

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