Anti-drop manhole cover for road surface

Abstract

The utility model provides an anti-drop manhole cover for road surface, which has a simple and reliable structure and ensures that the upper cover is not easy to fall off or be lifted up, thereby ensuring the flatness of the road surface. It includes: a manhole seat; an anti-drop ring; and a manhole cover body, which includes a manhole cover, a plurality of locking feet arranged in a ring, and a connecting ear; the upper center of the manhole seat forms a manhole cover installation cavity, the bottom of the manhole cover installation cavity is sleeved with the anti-drop ring, the anti-drop ring is rotatably connected to the bottom position of the cover body installation cavity of the manhole seat, the inner ring of the anti-drop ring is specifically an inner lining ring, and a plurality of locking grooves are opened on the inner lining ring, and a plurality of locking feet arranged in a ring on the upper cover are arranged corresponding to the locking grooves, and after the locking feet are embedded in the locking grooves, the locking or unlocking of the locking feet is completed by rotating the anti-drop ring.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover structures, in particular to an anti-falling manhole cover for road surfaces. Background Art

[0002] The existing road manhole cover structure is simple in design, and most of them rely on the manhole cover's own weight to press the manhole seat, which generates vibration and loud noise when vehicles pass by. In particular, when vehicles with heavy weight run over it, the manhole cover can easily be misplaced, detached from the manhole seat, or damaged and fall into the shaft, causing the manhole mouth to be exposed for a long time. Or when encountering heavy rain, the water in the well cannot be drained away in time, and the water flow will lift up the manhole cover, endangering pedestrians and high-speed vehicles, which is very likely to cause safety accidents.

[0003] Chinese patent CN214033793U discloses an anti-drop manhole cover, which is provided with a movable rod, and the movable rod can be embedded in a slot to prevent the manhole cover from being automatically opened. A limit block is provided under the root of the movable rod to prevent the movable rod from sliding in the slot, thereby improving the overall stability. However, the anti-drop structure of the manhole cover is relatively complicated, so it is urgent to develop an anti-drop manhole cover with a simple structure. Summary of the invention

[0004] In view of the above problems, the utility model provides an anti-drop manhole cover for road surface, which has a simple and reliable structure and ensures that the upper cover is not easy to fall off or be lifted up, thereby ensuring the flatness of the road surface.

[0005] An anti-drop manhole cover for road surface, characterized in that it comprises:

[0006] Well seat;

[0007] Anti-slip ring;

[0008] and a manhole cover body, which includes a manhole cover, a plurality of locking feet arranged around the manhole, and connecting ears;

[0009] A manhole cover installation cavity is formed at the upper center of the manhole seat, and the bottom of the manhole cover installation cavity is sleeved with the anti-slip ring, which is rotatably connected to the bottom position of the cover body installation cavity of the manhole seat. The inner ring of the anti-slip ring is specifically an inner liner ring, and a plurality of locking grooves are opened on the inner liner ring. A plurality of locking pins are arranged on the upper ring of the upper cover corresponding to the locking grooves. After the locking pins are embedded in the locking grooves, the locking or unlocking of the locking pins is completed by rotating the anti-slip ring;

[0010] The side surface of the manhole cover is hinged to the manhole seat, so that the manhole cover body can be opened and closed relative to the manhole seat;

[0011] At least one hole is provided on the upper surface of the anti-slip ring, and a positioning notch is provided on the manhole cover corresponding to the position of the hole. An external tool passes through the positioning notch and is inserted into the hole to rotate the anti-slip ring, thereby completing the locking or unlocking of the manhole cover and the anti-slip ring.

[0012] It is further characterized by:

[0013] A groove is provided on the side wall of the inner surface of the well seat, a pin seat is provided in the groove, a connecting ear is integrally connected to the side of the well cover, and the well cover is connected to the pin seat through the connecting ear, so that the well cover can be opened and closed relative to the well seat;

[0014] The inner wall of the well seat is integrally connected with a support ring, the space below the support ring is a guide ring groove, the anti-slip ring is supported on the upper surface of the support ring, the outer wall of the inner liner ring is in contact with the inner wall of the support ring, and the anti-slip ring is higher than the height of the support ring, and a plurality of stoppers are connected to the bottom of the outer wall of the inner liner ring, the upper surface of the stoppers is in contact with the lower surface of the support ring, and the stoppers are located in the guide ring groove;

[0015] The upper ring of the support ring is provided with a plurality of clearance grooves, and the bottom of the outer wall of the inner lining ring is integrally connected with a plurality of stoppers, which are inserted into the clearance grooves and then rotated to be placed in the space of the guide ring groove, and the arc distance between the stoppers and the clearance grooves is greater than the arc distance of the locking pin when unlocking or locking;

[0016] The locking groove and the locking foot are both L-shaped structures, and the L-shaped structure ensures that the locking foot cannot be pulled out of the locking groove after the locking groove and the locking foot are locked and connected;

[0017] The locking grooves and locking feet are evenly arranged in a ring pattern.

[0018] After adopting the utility model, the present application improves the existing manhole cover by installing an anti-slip ring in the manhole seat to limit the manhole cover, so that the manhole cover can be locked by the anti-slip ring, so that when a vehicle with a large dead weight runs over it, the manhole cover will not be misplaced, resulting in separation from the manhole seat or damage to the manhole cover falling into the vertical shaft, and when water accumulates in the well and there is no time to drain it away, the anti-slip ring can prevent the water flow from lifting the manhole cover, thus preventing pedestrians and high-speed vehicles from being endangered by the accidental opening of the manhole cover; in order to enable the anti-slip ring to lock the manhole cover The present application provides a locking foot compatible with the anti-slip ring on the lower surface of the manhole cover. When the manhole cover is closed, the anti-slip ring is rotated so that the locking foot can be inserted into the locking groove provided on the anti-slip ring, thereby locking the manhole cover. The locking foot can provide the manhole cover with anti-pullout and anti-compression effects, so that the manhole cover can be stably embedded in the manhole seat, avoiding the manhole cover from tilting and shaking due to uneven pressure when it is under pressure; its structure is simple and reliable, and it ensures that the upper cover is not easy to fall off or be lifted up, thereby ensuring the flatness of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional assembly diagram of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The three-dimensional assembly diagram of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the manhole cover of the utility model in an open state;

[0022] Figure 4 It is a bottom view of the manhole cover body of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of the well seat of the utility model;

[0024] Figure 6 The utility model is a three-dimensional anti-slip ring Figure 1 ;

[0025] Figure 7 The utility model is a three-dimensional anti-slip ring Figure 2 ;

[0026] The names corresponding to the serial numbers in the figure are as follows:

[0027] Well seat 100, pin seat 100a, support ring 100b, give way groove 100b-1, anti-slip ring 101, lining ring 101a, locking groove 101a-1, stopper 101a-2, notch 101b, well cover 102, locking foot 102a, positioning notch 102b, connecting ear 102c. DETAILED DESCRIPTION

[0028] A kind of anti-drop manhole cover for road surface Figure 1-Figure 7 : It includes a well seat 100, a well cover 102 assembled with the well seat 100, and an anti-slip ring 101 assembled on the upper surface of the well seat 100;

[0029] The anti-slip ring 101 can lock the manhole cover 102 and is used to prevent the manhole cover 102 from slipping off. The anti-slip ring 101 is rotatably connected in the manhole seat 100 so that the manhole cover 102 can be locked during the rotation process. The manhole cover 102 is embedded in the anti-slip ring 101 and passively fixed so that it can remain stable after being pressed by a vehicle. The side of the manhole cover 102 is hinged to the manhole seat 100, so that the manhole cover 102 and the manhole seat 100 form a whole. The anti-slip ring 101 is a ring-shaped structure. An inner lining ring 101a is integrally connected to its inner circle, and the manhole cover 102 is overlapped in the inner lining ring 101a for support. A plurality of locking grooves 101a-1 are equidistantly provided on the inner lining ring 101a, and a plurality of locking feet 102a are provided in a rectangular array on the lower surface of the manhole cover 102. When the manhole cover 102 is embedded in the anti-slip ring 101, the anti-slip ring 101 is rotated so that the locking groove 101a-1 wraps the locking foot 102a, thereby locking the manhole cover 102.

[0030] exist Figure 3 , Figure 4 as well as Figure 6 and Figure 7 In the figure, the locking groove 101a-1 and the locking foot 102a are both L-shaped structures. The L-shaped structure makes it impossible for the locking foot 102a to be pulled out from the locking groove 101a-1 after the locking groove 101a-1 and the locking foot 102a are connected, so that the manhole cover 102 can be locked on the anti-slip ring 101. Holes are provided on both sides of the upper surface of the anti-slip ring 101. When the inner liner ring 101a is rotated, a tool is used to hook the holes to drive the inner liner ring 101a to rotate.

[0031] exist Figure 3 as well as Figure 5 In the embodiment, the inner wall of the well seat 100 is integrally connected with a support ring 100b, the lower surface of the anti-slip ring 101 overlaps the upper surface of the support ring 100b to play a connecting and supporting role, the outer wall of the inner liner ring 101a fits inside the support ring 100b, and the anti-slip ring 101 is higher than the height of the support ring 100b, and a plurality of stoppers 101a-2 are integrally connected to the bottom of the outer wall of the inner liner ring 101a, and the upper surface of the stoppers 101a-2 fits on the upper surface of the support ring 100b. On the lower surface, the thickness of the block 101a-2 is equal to the thickness of the support ring 100b. The anti-slip ring 101 is fixed in the support ring 100b by the block 101a-2 against the lower surface of the support ring 100b. At this time, the anti-slip ring 101 can rotate on the support ring 100b in the well seat 100, but cannot be pulled out or can withstand pressure through the support ring 100b after being compressed, so that the anti-slip ring 101 remains stable in the well seat 100.

[0032] exist Figure 5-7In the figure, a plurality of equidistant grooves 100b-1 are provided on the inner wall of the support ring 100b, the space below the support ring 100b is a guide ring groove 100c, and the number of the equidistant grooves 100b-1 is equal to the number of the block 101a-2, the opening width of the equidistant groove 100b-1 is equal to the width of the block 101a-2, when the anti-slip ring 101 is embedded in the well seat 100, the block 101a-2 can extend into the guide ring groove 100c below the support ring 100b through the equidistant groove 100b-1, the anti-slip ring 101 is rotated so that the block 101a-2 fits with the lower surface of the support ring 100b, thereby prompting the anti-slip ring 101 to be rotatably connected to the well seat 100, and the arc distance between the block 101a-2 and the corresponding equidistant groove 100b-1 is greater than the arc distance of the locking foot 102a for unlocking or locking.

[0033] exist Figure 4 and Figure 5 In the figure, a groove is provided on the side wall of the upper surface of the well seat 100, a pin seat 100a is provided in the groove, a connecting ear 102c is integrally connected to the side of the well cover 102, the well cover 102 is connected to the pin seat 100a through the connecting ear 102c and can be opened and closed on the well seat 100, a notch 101b is provided on the upper surface of the inner liner ring 101 to make way for the connecting ear 102c, when the well cover 102 is opened and closed, the notch 101b ensures that the upper surface of the inner liner ring 101 does not conflict with the connecting ear 102c, air holes are provided on both sides of the upper surface of the well cover 102, and friction protrusions are also provided on the upper surface of the well cover 102, and a positioning notch 102 for positioning is provided at the edge of the well cover 102.

[0034] The specific use process is as follows: when installing, first embed the well seat 100 into the ground, then put the anti-slip ring 101 in, when the anti-slip ring 101 is embedded in the well seat 100, the stopper 101a-2 can extend under the supporting ring 100b through the giving way groove 100b-1, and the anti-slip ring 101 is rotated so that the stopper 101a-2 fits the lower surface of the supporting ring 100b, thereby promoting the anti-slip ring 101 to be rotatably connected with the well seat 100, and the well cover 102 The connecting ear 102c is movably connected with the pin seat 100a, so that the manhole cover 102 can be opened and closed on the manhole seat 100. When the manhole cover 102 and the manhole seat 100 are closed, a tool is used to hook the hole to drive the inner liner ring 101a to rotate. When the inner liner ring 101a rotates, the locking foot 102a is passively inserted into the locking groove 101a-1. After the locking groove 101a-1 and the locking foot 102a are connected, the locking foot 102a cannot be removed from the locking groove 101a. -1, so that the manhole cover 102 is locked on the anti-slip ring 101, and the locking foot 102a can play an anti-pullout and anti-compression role on the manhole cover 102, so that the manhole cover 102 can be stably embedded in the manhole seat, avoiding the manhole cover 102 from tilting and shaking due to uneven pressure when it is under pressure; it improves the existing manhole cover 102, installs an anti-slip ring in the manhole seat 100, and the anti-slip ring 101 is used to limit the manhole cover 102, so that the manhole cover 102 can be locked by the anti-slip ring 101, so that when a vehicle with a larger dead weight runs over it, the manhole cover 102 will not be misplaced, resulting in separation from the manhole seat 100 or the manhole cover 102 being damaged and falling into the vertical shaft, and when the water in the well is too late to be drained away, the anti-slip ring 101 can prevent the water flow from lifting the manhole cover 102, thereby preventing pedestrians and high-speed vehicles from being endangered due to the accidental opening of the manhole cover 102.

[0035] The above is a detailed description of the specific embodiments of the utility model, but the content is only the preferred embodiment of the utility model creation, and cannot be considered to limit the scope of implementation of the utility model creation. All equal changes and improvements made according to the application scope of the utility model creation should still fall within the scope of this patent.

Claims

1. A road surface anti-drop manhole cover, characterized in that: It includes: Well seat; Anti-slip ring; and a manhole cover body, which includes a manhole cover, a plurality of locking feet arranged around the manhole, and connecting ears; A manhole cover installation cavity is formed at the upper center of the manhole seat, and the bottom of the manhole cover installation cavity is sleeved with the anti-slip ring, which is rotatably connected to the bottom position of the cover body installation cavity of the manhole seat. The inner ring of the anti-slip ring is specifically an inner liner ring, and a plurality of locking grooves are opened on the inner liner ring. A plurality of locking pins are arranged on the upper ring of the upper cover corresponding to the locking grooves. After the locking pins are embedded in the locking grooves, the locking or unlocking of the locking pins is completed by rotating the anti-slip ring; The side surface of the manhole cover is hinged to the manhole seat, so that the manhole cover body can be opened and closed relative to the manhole seat; At least one hole is provided on the upper surface of the anti-slip ring, and a positioning notch is provided on the manhole cover corresponding to the position of the hole. An external tool passes through the positioning notch and is inserted into the hole to rotate the anti-slip ring, thereby completing the locking or unlocking of the manhole cover and the anti-slip ring.

2. The anti-drop manhole cover for road surface according to claim 1, characterized in that: A groove is provided on the inner side wall of the well seat, a pin seat is provided in the groove, a connecting ear is integrally connected to the side of the well cover, and the well cover is connected to the pin seat via the connecting ear, so that the well cover can be opened and closed relative to the well seat.

3. The anti-drop manhole cover for road surface according to claim 2, characterized in that: The inner wall of the well seat is integrally connected with a support ring, the space below the support ring is a guide ring groove, the anti-slip ring is supported on the upper surface of the support ring, the outer wall of the inner liner ring is fitted with the inner wall of the support ring, and the anti-slip ring is higher than the support ring, and a plurality of blocks are connected to the bottom of the outer wall of the inner liner ring, the upper surface of the block is fitted with the lower surface of the support ring, and the block is located in the guide ring groove.

4. The anti-drop manhole cover for road surface as claimed in claim 3, characterized in that: The upper ring of the support ring is provided with a plurality of clearance grooves, and a plurality of stoppers are integrally connected to the bottom of the outer wall of the inner lining ring. The stoppers are embedded in the clearance grooves and rotated to be placed in the space of the guide ring groove. The arc distance between the stoppers and the clearance grooves is greater than the arc distance for unlocking or locking the locking pin.

5. The anti-drop manhole cover for road surface according to claim 1, characterized in that: The locking groove and the locking foot are both in an L-shaped structure, and the L-shaped structure ensures that the locking foot cannot be pulled out of the locking groove after the locking groove and the locking foot are locked and connected.

6. The anti-drop manhole cover for road surface according to claim 1, characterized in that: The locking grooves and locking feet are evenly arranged in a circular pattern.

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