Overturn-preventing safety well lid

Abstract

The utility model discloses an anti-overturning safety well lid, which relates to the technical field of well lids and comprises a well lid main body arranged at the top of an inspection well, a fixing ring is fixedly connected to the inner side of the inspection well close to an opening, a positioning groove is arranged on the upper side of the fixing ring, a clamping groove is arranged on the inner side of the positioning groove, and an installation cylinder is fixedly connected to the bottom of the well lid main body. A rotating rod is rotationally connected to the lower side of the mounting cylinder, a locking mechanism is mounted at the bottom of the rotating rod, the tail end of the top of the rotating rod is located in the mounting cylinder, a positioning hole is formed in the tail end of the rotating plate, a positioning plate is fixedly connected to the inner side of the rotating rod, and a positioning mechanism is mounted on the other side of the rotating plate. According to the device, through ingenious cooperation of the rotating plate, the wedge-shaped block and the spring, firm fixing of the well lid is achieved, overturning or displacement is avoided, the self-locking mechanism is arranged in the well lid, the locking mechanism is effectively prevented from being damaged by the external environment, the service life is prolonged, and in addition, the well lid is convenient to disassemble and can be easily opened or disassembled only through simple operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of well lid, specifically, relates to a safe well lid of anti-overturning. BACKGROUND

[0002] As an important part of urban underground pipeline, inspection well is widely distributed in urban roads, squares, parks and other public places, and the safety of its well lid is directly related to the safety of pedestrians and vehicles. The traditional well lid adopts a simple gravity cover mode and is fixed at the inspection well mouth by relying on its own weight.

[0003] However, this fixing mode has obvious defects. When the well lid is impacted by external force, such as vehicle crushing or manual prying, it is prone to overturning or displacement, forming a safety hazard, and even causing casualties or property losses. In addition, although some well lids are equipped with external locks to improve the anti-theft performance, these locks are usually exposed to the outside, which is prone to rain erosion, dust accumulation and human damage, resulting in lock rusting, failure and ultimately losing the anti-theft function. At the same time, the installation and maintenance of external locks increase the construction difficulty and cost. Therefore, in view of the above technical problems, a safe well lid of anti-overturning is proposed. SUMMARY

[0004] The utility model aims at providing a safe well lid of anti-overturning, which realizes firm fixing of the well lid through the ingenious cooperation of the rotating plate, wedge block and spring, avoids overturning or displacement, and internally embeds the self-locking mechanism in the well lid to effectively protect the locking mechanism from damage by external environment and prolong the service life. In addition, the well lid is convenient to disassemble and can be easily opened or disassembled by simple operation.

[0005] The utility model realizes the following technical scheme:

[0006] A safe well lid of anti-overturning, comprising a well lid main body installed at the top of an inspection well, a fixing ring fixedly connected to the inner side of the inspection well near the opening, a positioning groove formed in the upper side of the fixing ring, a clamping groove formed in the inner side of the positioning groove, an installation cylinder fixedly connected to the bottom of the well lid main body, a rotating rod rotatably connected to the lower side of the installation cylinder, a locking mechanism installed at the bottom of the rotating rod, the top end of the rotating rod located inside the installation cylinder, a rotating plate fixedly connected to the outside of the rotating rod, a positioning hole formed in the end of the rotating plate, a positioning plate fixedly connected to the inner side of the rotating rod and installed on one side close to the rotating plate, and a positioning mechanism installed on the other side of the rotating plate.

[0007] Preferably, the upper side of the well lid main body is detachably connected with an inspection plate, and the inspection plate is located directly above the installation cylinder.

[0008] Preferably, the locking mechanism comprises a mounting frame, a fixing rod and a clamping block, the mounting frame is fixedly connected to the bottom of the rotating rod, the mounting frame is in the shape of a cross, the end of the mounting frame is located directly above the fixing ring, the fixing rod is fixedly connected to the lower side of the mounting frame, and the clamping block is fixedly connected to the bottom of the fixing rod.

[0009] Preferably, the number of the positioning slots and the clamping blocks is four, and they are arranged in a ring shape, the clamping block, the positioning slot and the clamping groove are all in the shape of an arc, and the clamping block is matched with the positioning slot and the clamping groove.

[0010] Preferably, the positioning mechanism comprises a mounting seat, a through slot, a sliding rod, a wedge-shaped block and a spring, the mounting seat is fixedly connected to the inner side of the rotating rod, the mounting seat is in a hollow structure, the through slot is arranged on the outer side of the mounting seat, the through slot is matched with the rotating plate, the sliding rod is slidingly connected to the upper side of the mounting seat, and the bottom end of the sliding rod is located inside the mounting seat.

[0011] Preferably, the wedge-shaped block is fixedly connected to the bottom of the sliding rod, an inclined surface is arranged on the side of the wedge-shaped block close to the rotating plate, the inclined surface of the wedge-shaped block is located in the through slot, the wedge-shaped block is matched with the positioning hole, the inner side of the mounting seat is fixedly connected with the spring, the spring is fixedly connected to the upper side of the wedge-shaped block, and the spring is sleeved on the outer side of the sliding rod.

[0012] Preferably, the upper side of the inspection well is provided with a slot, the bottom of the well lid body is fixedly connected with a plug rod, the plug rod is matched with the slot, when the plug rod is engaged with the slot, the clamping block is located directly above the positioning slot.

[0013] Preferably, the upper side of the inspection plate is threadedly connected with four groups of profiled bolts arranged in a ring shape.

[0014] The technical scheme of the utility model has at least the following beneficial effects:

[0015] The safety well cover provided by the utility model is tightly matched by the rotating plate, the wedge-shaped block and the spring, can be firmly fixed on the inspection well when the well cover is impacted by external force or is rolled by a vehicle, can effectively avoid overturning or displacement of the well cover, improves public safety, the self-locking mechanism is arranged in the well cover, not only protects the locking mechanism from damage by external environment, but also greatly prolongs the service life of the well cover, the well cover is simple and convenient to disassemble, can be easily opened or disassembled through simple operation, greatly facilitates maintenance and repair work of construction personnel, has the advantages of stable structure, long service life, convenient operation and the like, and is an important component part in urban infrastructure construction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a structure split diagram of the utility model;

[0018] Figure 3 is Figure 2 is an enlarged view of A;

[0019] Figure 4 is Figure 2 is an enlarged view of B;

[0020] Figure 5 is a schematic diagram of the local structure of the utility model;

[0021] Figure 6 is Figure 5 is an enlarged view of C;

[0022] Figure 7 is a local structure side sectional view of the utility model;

[0023] Figure 8 is Figure 7 is an enlarged view of D;

[0024] Figure 9 is Figure 1 is an enlarged view of E;

[0025] Reference signs: 1, inspection well; 2, positioning groove; 3, clamping groove; 4, well lid main body; 5, installation cylinder; 6, rotating rod; 7, mounting frame; 8, fixed rod; 9, clamping block; 10, rotating plate; 11, positioning hole; 12, positioning plate; 13, mounting seat; 14, fixing ring; 15, insertion slot; 16, insertion rod; 17, maintenance plate; 18, special-shaped bolt; 19, through slot; 20, sliding rod; 21, wedge-shaped block; 22, spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-9, A safety manhole cover for preventing overturning proposed by the utility model includes a manhole cover main body 4 installed on the top of the inspection well 1. A fixing ring 14 is fixedly connected to the inner side of the inspection well 1 near the opening. A positioning groove 2 is opened on the upper side of the fixing ring 14, and a clamping groove 3 is opened inside the positioning groove 2. The bottom of the manhole cover main body 4 is fixedly connected with an installation cylinder 5. The lower side of the installation cylinder 5 is rotatably connected with a rotating rod 6. A locking mechanism is installed at the bottom of the rotating rod 6. The top end of the rotating rod 6 is located inside the installation cylinder 5, and a rotating plate 10 is fixedly connected to its outer side. A positioning hole 11 is opened at the end of the rotating plate 10. A positioning plate 12 is fixedly connected to the inner side of the rotating rod 6, and the positioning plate 12 is installed on one side close to the rotating plate 10. A positioning mechanism is installed on the other side of the rotating plate 10.

[0028] A maintenance plate 17 is detachably connected to the upper side of the manhole cover main body 4, and the maintenance plate 17 is located directly above the installation cylinder 5.

[0029] The locking mechanism includes an installation frame 7, a fixing rod 8 and a clamping block 9. The installation frame 7 is fixedly connected to the bottom of the rotating rod 6, and the installation frame 7 is integrally in a cross structure. The end of the installation frame 7 is located directly above the fixing ring 14. The fixing rod 8 is fixedly connected to the lower side of the installation frame 7. The clamping block 9 is fixedly connected to the bottom of the fixing rod 8. The cross structure of the installation frame 7 enables the clamping blocks 9 to be evenly distributed and stably inserted into the positioning groove 2.

[0030] The number of the positioning grooves 2 and the clamping blocks 9 is four groups and they are arranged in a ring. The clamping blocks 9, the positioning grooves 2 and the clamping grooves 3 are all arc-shaped, and the clamping blocks 9 are all matched with the positioning grooves 2 and the clamping grooves 3. The arc design enables the clamping blocks 9 to slide into and engage with the positioning grooves 2 and the clamping grooves 3 more smoothly.

[0031] The positioning mechanism includes an installation seat 13, a through groove 19, a sliding rod 20, a wedge block 21 and a spring 22. The installation seat 13 is fixedly connected to the inner side of the rotating rod 6, and the installation seat 13 is of a hollow structure. The through groove 19 is opened on the outer side of the installation seat 13, and the through groove 19 is matched with the rotating plate 10. The sliding rod 20 is slidably connected to the upper side of the installation seat 13, and the bottom end of the sliding rod 20 is located inside the installation seat 13. The design of the through groove 19 enables the rotating plate 10 to pass through smoothly and drive the wedge block 21 to slide up and down.

[0032] The wedge block 21 is fixedly connected to the bottom of the sliding rod 20, and an inclined surface is opened on one side of the wedge block 21 close to the rotating plate 10. The inclined surface part of the wedge block 21 is located in the through groove 19, and the wedge block 21 is matched with the positioning hole 11. A spring 22 is fixedly connected to the inner top of the installation seat 13, and the spring 22 is fixedly connected to the upper side of the wedge block 21. The spring 22 is sleeved on the outer side of the sliding rod 20. The design of the spring 22 enables the wedge block 21 to automatically reset and engage with the positioning hole 11 when the external force is lost.

[0033] The upper side of the inspection well 1 is provided with a slot 15, and the bottom of the well cover body 4 is fixedly connected with a rod 16, and the rod 16 and the slot 15 are matched. When the rod 16 and the slot 15 are engaged, the locking block 9 is located directly above the positioning groove 2. The slot 15 and the rod 16 can be set to a circular, hexagonal or square structure.

[0034] The upper side of the inspection plate 17 is threaded with four sets of annularly arranged special bolts 18. The design of the special bolts 18 allows the inspection plate 17 to be more firmly fixed to the manhole cover body 4, preventing it from loosening or falling off.

[0035] The working principle of an anti-tipping safety manhole cover based on an embodiment is as follows: When using this manhole cover to seal the inspection well 1, the construction personnel first use a special tool to unscrew the special bolts 18 above the inspection plate 17. Then, they control the insertion rod 16 at the bottom of the manhole cover body 4 to align with the slot 15 on the upper side of the inspection well 1. Then, they press down the manhole cover body 4 to initially seal the inspection well 1. At the same time, they can control the locking block 9 to insert into the positioning groove 2. Then, they only need to manually rotate the rotating plate 10 towards the mounting base 13, so that one side of the rotating plate 10 passes through the through groove 19 and contacts and presses against the inclined side of the wedge block 21. The inclined side of the wedge block 21 is forced to slide upward by itself, while compressing the spring 22. When the positioning hole 11 at the end of the rotating plate 10 moves to the bottom of the wedge block 21, the wedge block 21 can be quickly locked into the positioning hole 11 under the elastic force of the spring 22, completing the positioning of the entire structure. During this process, the rotating rod 6 will also lock the rotating plate 10 in the mounting cylinder. The rotation of the rod 6 causes the mounting bracket 7 at the bottom of the rotating rod 6 to rotate, making the four ends of the mounting bracket 7 rotate. This allows the locking block 9 to rotate and insert into the slot 3 inside the positioning groove 2. Next, the inspection plate 17 is sealed again using a special tool and special bolts 18, completing the self-locking process inside the inspection well 1. This enhances the overall installation stability. When the manhole cover is impacted by external forces or run over by vehicles, the internal self-locking mechanism can firmly fix the manhole cover to the inspection well 1, preventing the manhole cover from tipping over or shifting. On the other hand, it avoids the locking mechanism being installed on the outside, which cannot be preserved for a long time, effectively improving its service life. When it is necessary to open or disassemble the manhole cover, simply open the inspection plate 17 through the above operation, pull the sliding rod 20 at the top of the wedge block 21, and pull the wedge block 21 out of the positioning hole 11. This releases the rotating plate 10 to rotate, thereby causing the locking block 9 to slide out of the slot 3, making the manhole cover easy to disassemble.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety manhole cover designed to prevent tipping, characterized in that: The manhole cover body (4) is installed on the top of the manhole (1). A fixing ring (14) is fixedly connected to the inner side of the manhole (1) near the opening. A positioning groove (2) is opened on the upper side of the fixing ring (14). A slot (3) is opened on the inner side of the positioning groove (2). An installation cylinder (5) is fixedly connected to the bottom of the manhole cover body (4). A rotating rod (6) is rotatably connected to the lower side of the installation cylinder (5). A locking mechanism is installed at the bottom of the rotating rod (6). The top end of the rotating rod (6) is located inside the installation cylinder (5), and a rotating plate (10) is fixedly connected to its outside. A positioning hole (11) is opened at the end of the rotating plate (10). A positioning plate (12) is fixedly connected to the inner side of the rotating rod (6), and the positioning plate (12) is installed on the side close to the rotating plate (10). A positioning mechanism is installed on the other side of the rotating plate (10).

2. The anti-tipping safety manhole cover according to claim 1, characterized in that: The upper side of the manhole cover body (4) is detachably connected to an inspection plate (17), and the inspection plate (17) is located directly above the mounting cylinder (5).

3. The anti-tipping safety manhole cover according to claim 1, characterized in that: The locking mechanism includes a mounting bracket (7), a fixing rod (8), and a locking block (9). The mounting bracket (7) is fixedly connected to the bottom of the rotating rod (6), and the mounting bracket (7) is in the shape of a cross. The end of the mounting bracket (7) is located directly above the fixing ring (14). The fixing rod (8) is fixedly connected to the lower side of the mounting bracket (7), and the locking block (9) is fixedly connected to the bottom of the fixing rod (8).

4. The anti-tipping safety manhole cover according to claim 3, characterized in that: The number of positioning grooves (2) and card blocks (9) are four sets and arranged in a ring. The card blocks (9), positioning grooves (2) and card slots (3) are all arc-shaped, and the card blocks (9) are matched with the positioning grooves (2) and card slots (3).

5. The anti-tipping safety manhole cover according to claim 1, characterized in that: The positioning mechanism includes a mounting base (13), a through groove (19), a slide rod (20), a wedge block (21), and a spring (22). The mounting base (13) is fixedly connected to the inner side of the rotating rod (6), and the mounting base (13) is a hollow structure. The through groove (19) is opened on the outer side of the mounting base (13), and the through groove (19) matches the rotating plate (10). The slide rod (20) is slidably connected to the upper side of the mounting base (13), and the bottom end of the slide rod (20) is located inside the mounting base (13).

6. A safety manhole cover for preventing tipping as described in claim 5, characterized in that: The wedge block (21) is fixedly connected to the bottom of the slide rod (20), and the wedge block (21) has an inclined surface on the side near the rotating plate (10). The inclined surface of the wedge block (21) is located in the through groove (19), and the wedge block (21) matches the positioning hole (11). A spring (22) is fixedly connected to the top of the inner side of the mounting base (13), and the spring (22) is fixedly connected to the upper side of the wedge block (21). The spring (22) is sleeved on the outer side of the slide rod (20).

7. The anti-tipping safety manhole cover according to claim 1, characterized in that: The inspection well (1) has a slot (15) on its upper side. The bottom of the well cover body (4) is fixedly connected to a rod (16), and the rod (16) matches the slot (15). When the rod (16) engages with the slot (15), the locking block (9) is located directly above the positioning groove (2).

8. A safety manhole cover for preventing tipping as described in claim 2, characterized in that: The upper side of the inspection plate (17) is threaded with four sets of annularly arranged irregular bolts (18).

Images