Well lid lock convenient to open and well lid

Abstract

The utility model relates to the technical field of well lids, in particular to a well lid lock convenient to open and a well lid, which comprise a well lid cover plate, the rear end of the well lid cover plate is rotatably connected with a well lid seat assembly, the bottom end of the well lid cover plate is connected with a locking assembly and a stopping assembly, the inner side of the well lid cover plate is provided with a lock head control assembly, and the locking assembly comprises a column seat. A first air storage groove, a first column groove, an air duct, a second air storage groove, a communication channel and a second column groove are formed in the inner side of the column base, a filter plate is connected to the inner side of the air duct, a first rubber sealing ring is connected to the inner side of the second column groove, the lock head control assembly comprises a double-column rod, and a second rubber sealing ring is connected to the outer side of the double-column rod. According to the anti-theft well lid lock, the well lid lock structure is hidden, environment damage is prevented, the service life is prolonged, opening is controlled through magnetism, labor is saved, convenience is achieved, unauthorized opening is prevented through the magnetic attraction and repulsion characteristic, and the anti-theft performance and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically to a manhole cover lock and manhole cover that are easy to open. Background Technology

[0002] Manhole covers are plates used to cover the openings of various inspection wells, drainage wells or other underground facilities under public areas such as roads, sidewalks, and squares. They are usually made of metal, concrete or composite materials and have a certain load-bearing capacity and sealing performance. They can prevent pedestrians and vehicles from accidentally falling into the manhole, protect the facilities inside the manhole from the influence of the external environment, and facilitate maintenance personnel to open them for inspection and maintenance at any time.

[0003] A manhole cover lock is a device used to fix and protect manhole covers. It prevents the manhole cover from being illegally opened or moved through a mechanical or electronic locking mechanism. It is usually installed between the manhole cover and the manhole seat and has the functions of anti-theft, anti-accidental opening and ensuring public safety. It is widely used in underground manholes in municipal facilities, communications, power, gas and other industries to ensure the stability of the manhole cover and prevent unauthorized entry.

[0004] Traditional manhole cover locks have a special structure on the manhole cover that can only be opened with a specific key. This locking mechanism is usually exposed to the external environment and is not only easily damaged by external environmental factors, but also easily vandalized, such as by prying or forcibly dismantling. Such damage or vandalism not only reduces the anti-theft and protective functions of the manhole cover lock, but may also lead to the accidental opening of the manhole cover, causing safety hazards. Therefore, in order to address the above problems, a manhole cover lock and manhole cover that are easy to open are proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a manhole cover lock and manhole cover that are easy to open, so as to solve the problem that the locking mechanism is usually exposed to the external environment, which is not only easily damaged by external environmental factors, but also easily damaged by human intervention, such as prying or violent disassembly. Such damage or destruction will not only reduce the anti-theft and protective functions of the manhole cover lock, but may also lead to the accidental opening of the manhole cover, causing safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A manhole cover lock and manhole cover that are easy to open include a manhole cover plate, a manhole cover seat assembly rotatably connected to the rear end of the manhole cover plate, a locking assembly connected to the bottom end of the manhole cover plate, a lock head control assembly installed inside the locking assembly, the locking assembly including a column base, a first air storage groove, a first column groove, a vent, a second air storage groove, a connecting channel, and a second column groove opened inside the column base, a filter plate connected inside the vent, a first rubber sealing ring connected inside the second column groove, the lock head control assembly including a double column rod, a second rubber sealing ring connected to the outer side of the double column rod, a spring connected to the upper end of the first air storage groove, a movable column plate connected to the bottom end of the spring, and a third rubber sealing ring connected to the outer side of the movable column plate.

[0008] As a further optimization of this utility model, the manhole cover seat assembly includes a manhole cover seat, a load-bearing ring and a locking seat are connected to the inner side of the manhole cover seat, an expansion opening and a locking hole are opened on the inner side of the locking seat, a rotating column is connected to the rear end of the manhole cover plate, a shaft hole is opened on the inner side of the manhole cover seat near the rear end, and the rear end of the manhole cover plate is rotatably connected to the inner side of the shaft hole of the manhole cover seat through the shaft column.

[0009] As a further optimization of this utility model, the upper end of the expansion port is a flared structure, the expansion port penetrates the upper part of the lock seat, the expansion port is connected to the lock hole, and the number of lock holes is the same as the number of double-column rods.

[0010] As a further optimization of this utility model, the column base is inserted into the interior of the expansion port, and the double column rod is inserted into the interior of the lock hole.

[0011] As a further optimization of this utility model, the following features are provided: a connecting hole is provided between the first gas storage groove and the first column groove; the first gas storage groove is connected to the interior of the first column groove through the connecting hole; the first column groove penetrates the front end of the column base; the position of the column base near the upper end is a sealing structure; a stop bar is fixed at the rear end of the first column groove; the outer side of the second rubber sealing ring is fitted with the inner side of the first column groove; and the vent is connected to the first gas storage groove.

[0012] As a further optimization of this utility model, the second gas storage groove is connected to the second column groove through a connecting channel. The lower end of the connecting channel is close to the rear end of the second column groove. The second column groove passes through the rear end of the column base. A stop bar is fixed at the rear end of the second column groove. The inner side of the first rubber sealing ring is in contact with the outer side of the double column rod at the rear end.

[0013] As a further optimization of this utility model, the double-column rod is shaped as two cylinders with different diameters, the double-column rod is slidably connected to the inner side of the first column groove, and the outer side of the third rubber sealing ring is fitted to the inner side of the first gas storage groove.

[0014] A manhole cover, comprising a manhole cover lock that is easy to open as described in any of the preceding claims.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the locking structure of the manhole cover lock is not exposed by the manhole cover seat assembly, locking assembly, and lock head control assembly, reducing damage to the locking mechanism from external environmental factors and extending its service life. Secondly, the manhole cover lock is opened by magnetic control, reducing the effort required for manual pulling and improving the convenience of opening the manhole cover. In addition, the device utilizes the attraction and repulsion properties of magnets to precisely control the movement of each component of the manhole cover lock, preventing unauthorized personnel from easily opening the manhole cover with magnets, thereby improving the anti-theft and safety features of the manhole cover. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the manhole cover plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the manhole cover seat assembly of this utility model;

[0020] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0021] Figure 5 This is a cross-sectional structural diagram of the locking component of this utility model;

[0022] Figure 6 This is a schematic diagram of the column base structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the lock control component of this utility model;

[0024] Figure 8 This is an exploded structural diagram of the lock control component of this utility model.

[0025] In the picture: 1. Manhole cover;

[0026] 2. Manhole cover seat assembly; 21. Manhole cover seat; 22. Load-bearing ring; 23. Lock seat; 24. Expansion port; 25. Lock hole;

[0027] 3. Locking assembly; 31. Column base; 32. First air storage groove; 33. First column groove; 34. Ventilation channel; 35. Filter plate; 36. Second air storage groove; 37. Connecting channel; 38. Second column groove; 39. First rubber sealing ring;

[0028] 4. Lock control assembly; 41. Double rod; 42. Second rubber seal ring; 43. Movable plate; 44. Third rubber seal ring; 45. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Please see Figure 1-8 This utility model provides a technical solution:

[0032] A manhole cover lock and manhole cover that are easy to open include a manhole cover plate 1, a manhole cover seat assembly 2 rotatably connected to the rear end of the manhole cover plate 1, a locking assembly 3 connected to the bottom end of the manhole cover plate 1, a lock head control assembly 4 installed inside the locking assembly 3, the locking assembly 3 including a column base 31, a first air storage groove 32, a first column groove 33, a ventilation channel 34, a second air storage groove 36, a connecting channel 37 and a second column groove 38 opened inside the column base 31, a filter plate 35 connected inside the ventilation channel 34, a first rubber sealing ring 39 connected inside the second column groove 38, the lock head control assembly 4 including a double column rod 41, a second rubber sealing ring 42 connected to the outer side of the double column rod 41, a spring 45 connected to the upper end of the first air storage groove 32, a movable column plate 43 connected to the bottom end of the spring 45, and a third rubber sealing ring 44 connected to the outer side of the movable column plate 43.

[0033] As a further implementation of this solution, the manhole cover seat assembly 2 includes a manhole cover seat 21. A load-bearing ring 22 and a lock seat 23 are connected to the inner side of the manhole cover seat 21. An expansion port 24 and a lock hole 25 are opened on the inner side of the lock seat 23. A rotating column is connected to the rear end of the manhole cover plate 1. A shaft hole is opened on the inner side of the manhole cover seat 21 near the rear end. The rear end of the manhole cover plate 1 is rotatably connected to the inner side of the shaft hole of the manhole cover seat 21 through the shaft column. Through the above settings, the connection between the manhole cover seat 21 and the manhole cover plate 1 is realized, and the rotation operation of the manhole cover lock is realized.

[0034] As a further implementation of this solution, the upper end of the expansion port 24 is a flared structure. The expansion port 24 penetrates the upper part of the lock seat 23 and is connected to the lock hole 25. The number of lock holes 25 is the same as the number of double column rods 41. Through the above settings, the flared structure of the expansion port 24 and the connection design with the lock hole 25 facilitate the alignment and insertion of the magnet, while ensuring that the gas can flow smoothly, providing a good channel for magnetic control and negative pressure formation, and improving the operating efficiency and stability of the device.

[0035] As a further implementation of this solution, the column base 31 is inserted into the interior of the expansion port 24, and the double column rod 41 is inserted into the interior of the locking hole 25. Through the above arrangement, the locking between the manhole cover base 21 and the manhole cover plate 1 is achieved.

[0036] As a further implementation of this solution, a connecting hole is provided between the first gas storage groove 32 and the first column groove 33. The first gas storage groove 32 is connected to the inside of the first column groove 33 through the connecting hole. The first column groove 33 penetrates the front end of the column base 31. The upper part of the column base 31 is a sealing structure. A stop bar is fixed at the rear end of the first column groove 33. The outer side of the second rubber sealing ring 42 is fitted with the inner side of the first column groove 33. The ventilation channel 34 is connected to the first gas storage groove 32. Through the above settings, the design of the connecting hole and the setting of the sealing structure, the gas can form a negative pressure inside the device, control the retraction of the double column rod 41, thereby realizing the automatic opening of the well cover lock, reducing the intensity of manual operation, and improving the opening efficiency and safety.

[0037] As a further implementation of this solution, the second gas storage groove 36 is connected to the second column groove 38 through the connecting channel 37. The lower end of the connecting channel 37 is close to the rear end of the second column groove 38. The second column groove 38 passes through the rear end of the column base 31. A stop bar is fixed at the rear end of the second column groove 38. The inner side of the first rubber sealing ring 39 is in contact with the outer side of the rear double column rod 41. Through the above arrangement, the connection design of the second gas storage groove 36, the connecting channel 37 and the second column groove 38 enables the gas to form an effective pushing force inside the device, ensuring that the double column rod 41 can be accurately stored. At the same time, the sealing effect of the stop bar and the first rubber sealing ring 39 prevents gas leakage and improves the reliability and safety of the device.

[0038] As a further implementation of this solution, the double-column rod 41 is shaped as two cylinders with different diameters. The double-column rod 41 is slidably connected to the inner side of the first column groove 33, and the outer side of the third rubber sealing ring 44 is fitted with the inner side of the first gas storage groove 32. Through the above arrangement, the double-column rod 41 is prevented from detaching from the column base 31. At the same time, the fitting and sealing structure of the third rubber sealing ring 44 and the first gas storage groove 32 ensures the formation of negative pressure and the stability of gas flow, which facilitates the control of the position of the double-column rod 41.

[0039] A manhole cover, including any one of the above-mentioned features, and an easy-to-open manhole cover lock.

[0040] Workflow: When opening the manhole cover 1, existing magnets are aligned with the upper parts of the movable column plates 43. The front movable column plate 43 moves upward using the magnetic attraction property of the magnets, while the rear movable column plate 43 moves downward using the magnetic repulsion property. The other movable column plates 43 adjust their magnetic poles according to the designed connection between the second air storage groove 36 and the second column groove 38. By setting different magnetic poles, it is possible to prevent unauthorized personnel from using magnets to move all the double column rods 41 into the column base 31 at once, thus improving the safety of the manhole cover from accidental opening. To reduce the difficulty of opening and improve the safety of manhole cover use, when the movable column plate 43 at the front end moves upward, it compresses the spring 45. The third rubber sealing ring 44 seals the space between the movable column plate 43 and the first air storage groove 32. Air at the top of the movable column plate 43 flows out from the vent 34. The filter plate 35 prevents impurities from entering the interior of the first air storage groove 32. Due to the sealing effect of the third rubber sealing ring 44, gas inside the first column groove 33 enters the interior of the first air storage groove 32, creating a negative pressure state inside the first air storage groove 32. Under the action of negative pressure... The double-column rod 41 retracts into the first column groove 33, and the second rubber sealing ring 42 seals the space between the double-column rod 41 and the first column groove 33. This allows the double-column rod 41 to move out of the front locking hole 25. The rear movable column plate 43 moves downwards under magnetic repulsion, sliding inside the second air storage groove 36. At this time, the movable column plate 43 pushes the gas inside the lower end of the second air storage groove 36 into the second column groove 38 through the connecting channel 37. Driven by the gas, the rear double-column rod 41 retracts into the second column groove 38. The first rubber sealing ring 42 seals the space between the double-column rod 41 and the first column groove 33. The sealing ring 39 prevents gas from escaping. At this time, the rear double-column rod 41 is retracted into the second column groove 38, and the rear double-column rod 41 moves out from the rear locking hole 25. The other double-column rods 41 are controlled in the same way as above, thereby achieving the effect of opening the manhole cover lock. Based on the above principles, the device uses magnetism to control the opening of the manhole cover lock, which improves the convenience of opening the manhole cover and reduces the pulling force. At the same time, the manhole cover lock is not exposed, which improves the safety of using the manhole cover lock. In addition, the locking structure of the device increases the difficulty of opening for non-workers, further improving the safety of using the manhole cover.

[0041] 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 manhole cover lock facilitating opening, comprising a manhole cover plate (1), characterized in that: The manhole cover plate (1) is rotatably connected to a manhole cover seat assembly (2) at its rear end, and a locking assembly (3) is connected to the bottom end of the manhole cover plate (1). A lock head control assembly (4) is installed inside the locking assembly (3). The locking assembly (3) includes a column base (31), and the inner side of the column base (31) is provided with a first air storage groove (32), a first column groove (33), an air passage (34), a second air storage groove (36), a connecting channel (37), and a second column groove (38). The inner side of the air passage (34) is connected to a filter plate (35), and the inner side of the second column groove (38) is connected to a first rubber sealing ring (39). The lock control assembly (4) includes a double column rod (41), a second rubber sealing ring (42) is connected to the outside of the double column rod (41), a spring (45) is connected to the upper end of the first air storage groove (32), a movable column plate (43) is connected to the bottom end of the spring (45), and a third rubber sealing ring (44) is connected to the outside of the movable column plate (43).

2. A lock for a manhole cover according to claim 1, characterised in that: The manhole cover assembly (2) includes a manhole cover (21), a load-bearing ring (22) and a lock seat (23) are connected to the inner side of the manhole cover (21), an expansion port (24) and a lock hole (25) are opened on the inner side of the lock seat (23), a rotating column is connected to the rear end of the manhole cover plate (1), a shaft hole is opened on the inner side of the manhole cover (21) near the rear end, and the rear end of the manhole cover plate (1) is rotatably connected to the inner side of the shaft hole of the manhole cover (21) through the shaft column.

3. A lock for a manhole cover according to claim 2, wherein: The upper end of the expansion port (24) is an flared structure. The expansion port (24) penetrates the upper part of the lock seat (23). The expansion port (24) is connected to the lock hole (25). The number of lock holes (25) is the same as the number of double rods (41).

4. A tamperproof lid lock according to claim 1, wherein: The column base (31) is inserted into the interior of the expansion port (24), and the double column rod (41) is inserted into the interior of the lock hole (25).

5. A tamperproof lid lock for a manhole cover according to claim 1, wherein: A connecting hole is provided between the first gas storage groove (32) and the first column groove (33). The first gas storage groove (32) is connected to the inside of the first column groove (33) through the connecting hole. The first column groove (33) passes through the front end of the column base (31). The column base (31) is a sealing structure near the upper end. A stop bar is fixed at the rear end of the first column groove (33). The outer side of the second rubber sealing ring (42) is in contact with the inner side of the first column groove (33). The ventilation channel (34) is connected to the first gas storage groove (32).

6. A tamperproof lid lock for a manhole cover according to claim 1, wherein: The second gas storage groove (36) is connected to the second column groove (38) through the connecting channel (37). The lower end of the connecting channel (37) is close to the rear end of the second column groove (38). The second column groove (38) passes through the rear end of the column base (31). A stop bar is fixed at the rear end of the second column groove (38). The inner side of the first rubber sealing ring (39) is in contact with the outer side of the double column rod (41) at the rear end.

7. A tamperproof lid lock for a manhole cover according to claim 1, wherein: The double column rod (41) is shaped as two cylinders with different diameters. The double column rod (41) is slidably connected to the inner side of the first column groove (33). The outer side of the third rubber sealing ring (44) is in contact with the inner side of the first gas storage groove (32).

8. A well lid characterised by: A manhole cover lock including the features of any one of claims 1 to 7.

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