Full-automatic well lid lock based on novel emergency unlocking mode

Abstract

The utility model discloses a full-automatic well lid lock based on a novel emergency unlocking mode. The full-automatic well lid lock comprises a main lock installed on a well lid, the output end of the main lock is fixedly connected with a stirring disc, the end face of the stirring disc is provided with one or more connecting shafts, and each connecting shaft is hinged to a connecting rod mechanism. The emergency lock is arranged on the well lid and is far away from the main lock, a push rod is hinged to the emergency lock through a shifting piece, and the other end of the push rod is hinged to any connecting rod mechanism. The emergency lock is installed away from the main lock, when the lock is destructively attacked from the emergency lock hole position, the emergency lock is separated from the connecting rod structure firstly, the main lock cannot be damaged by external force, and the safety of the lock is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fully automatic manhole cover lock technology, specifically a fully automatic manhole cover lock based on a novel emergency unlocking method. Background Technology

[0002] Currently, manhole cover locks with emergency unlocking functions integrate the emergency lock with the main lock, requiring a relatively large emergency unlocking hole to be drilled in the main lock position on the manhole cover. When the lock is subjected to violent attack from the unlocking hole, the emergency lock or the main lock can be damaged and opened, resulting in low security.

[0003] Therefore, this utility model provides a fully automatic manhole cover lock based on a novel emergency unlocking method to solve the problems mentioned in the background art. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fully automatic manhole cover lock based on a novel emergency unlocking method includes a main lock installed on the manhole cover. The output end of the main lock is fixedly connected to a dial, and one or more connecting shafts are evenly distributed on the end face of the dial. Each connecting shaft is hinged to a linkage mechanism. The lock also includes an emergency lock installed on the manhole cover. The emergency lock is located away from the main lock. The emergency lock is hinged to a push rod via a dial, and the other end of the push rod is hinged to any linkage mechanism.

[0006] A further embodiment: The main lock includes a housing, inside which a control board and a reduction motor are provided. The control board is electrically connected to the reduction motor. The output shaft of the reduction motor passes through the housing and is fixedly connected to the center of the dial. A guide plate is installed on the housing, and a second guide groove and a third guide groove are provided on the guide plate.

[0007] A further embodiment: The linkage mechanism includes a guide seat and a locking bolt passing through the guide seat, and a connecting rod is installed on the locking bolt.

[0008] A further embodiment: The connecting rod is an integral connecting rod, one end of which is hinged to the actuating disk via a connecting shaft, and the other end of which is movably connected to the locking bolt via a cylindrical pin.

[0009] A further embodiment: The connecting rod is a split connecting rod, which includes a straight connecting rod and a bent connecting rod. The straight connecting rod and the bent connecting rod are movably connected by a first guide pin. The end of the straight connecting rod that is different from the bent connecting rod is movably connected to a locking bolt by a cylindrical pin. The end of the bent connecting rod that is different from the straight connecting rod is hinged to the actuating disk by a connecting shaft.

[0010] A further solution: The guide seat has a circular hole in the middle, and the locking bolt is a cylindrical structure and is movably installed in the circular hole.

[0011] A further solution: The push rod has a circular hole at the end near the emergency lock, and a first guide groove at the end near the split connecting rod. A second guide pin is installed in the circular hole, and the first guide pin moves within the first guide groove.

[0012] A further solution: The push rod has a threaded hole in the middle, and a third guide pin is connected to the push rod through the threaded hole.

[0013] A further solution: The third guide pin slides within the third guide groove, and the second guide pin slides within the second guide groove.

[0014] A further solution: One end of the lever is provided with a waist-shaped hole, through which the lever is fixedly connected to the emergency lock; the other end of the lever is provided with a U-shaped groove, which is movably connected to the second guide pin.

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

[0016] This utility model provides a novel fully automatic manhole cover lock with an emergency unlocking method. The emergency lock is installed away from the main lock. When a destructive attack is launched on the lock from the emergency lock hole, the emergency lock first separates from the linkage structure, and the main lock is not damaged by external force, thus improving the security of the lock. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 Diagram showing the main lock being engaged;

[0019] Figure 2 A schematic diagram of the main lock structure;

[0020] Figure 3 A diagram illustrating the unlocking of the main lock;

[0021] Figure 4 A diagram illustrating how to unlock an emergency lock;

[0022] Figure 5 This is a schematic diagram of three sets of linkage mechanisms;

[0023] Figure 6 This is a schematic diagram of a single linkage mechanism;

[0024] Figure 7 This is a schematic diagram of the push rod structure;

[0025] Figure 8 This is a schematic diagram of the paddle's structure;

[0026] Figure 9This is a schematic diagram of the integral connecting rod structure;

[0027] Figure 10 This is a schematic diagram of a split-type connecting rod.

[0028] Figure 11 This is a schematic diagram of a single linkage mechanism installed on a manhole cover.

[0029] In the diagram: 1. Manhole cover; 2. Main lock; 201. Outer shell; 202. Control panel; 203. Gear motor; 20301. Output shaft; 3. Actuating disc; 301. Connecting shaft; 4. Linkage mechanism; 401. Integral connecting rod; 402. Locking bolt; 403. Guide seat; 404. Straight connecting rod; 405. First guide pin; 406. Bent connecting rod; 408. Cylindrical pin; 407. Circular hole; 5. Push rod; 501. Circular hole; 502. First guide groove; 503. Threaded hole; 6. Emergency lock; 7. Paddle; 701. Waist-shaped hole; 702. U-shaped groove; 8. Guide plate; 801. Second guide groove; 802. Third guide groove; 9. Second guide pin; 10. Third guide pin. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] like Figure 1 As shown, a fully automatic manhole cover lock based on an emergency unlocking method includes a main lock 2, a lever 3, a linkage mechanism 4, a push rod 5, an emergency lock 6, an emergency lock lever 7, a guide plate 8, a second guide pin 9, and a third guide pin 10.

[0033] The main lock is installed in the center of the manhole cover 1, such as... Figure 1 , Figure 2 As shown, it mainly includes a housing 201, a control board 202, and a geared motor 203. The control board 202 and the geared motor 203 are housed inside the housing 201, and the control board 202 is electrically connected to the geared motor 203.

[0034] The dial 3 is connected to the output shaft 20301 extending from the housing 201, and there are three connecting shafts 301 distributed at 120 degrees on the end face of the dial.

[0035] like Figure 5-6 As shown, the linkage mechanism 4 includes a connecting rod, a locking bolt 402, and a guide seat 403. The linkage mechanism is divided into single-group linkage mechanisms and three-group linkage mechanisms, as shown below. Figure 11 As shown, a single linkage mechanism is used for manhole covers with hinged connections to the manhole base, such as... Figure 1 As shown, three sets of linkage mechanisms are used for independent manhole covers with separate bases and covers. These three sets of linkage mechanisms are evenly distributed at 120-degree angles on the manhole cover. Figure 9 , Figure 10 As shown, the linkage is divided into an integral linkage 401 and a split linkage. The split linkage is formed by a straight linkage 404 and a bent linkage 406 connected by a first guide pin 405. Its length is the same as that of the integral linkage 401. When locked, the straight linkage 404 and the bent linkage 406 are on the same straight line. One end of the linkage is movably connected to the actuating disk 3 via a connecting shaft 301, and the other end is movably connected to the locking bolt 402 via a cylindrical pin 408. The linkage of a single linkage mechanism is a split linkage. Figure 1 As shown, one link of the three linkage mechanisms is integral, while the other two links are separate. The separate links are installed on both sides of the emergency lock 6. The guide seat 403 has a round hole 407 in the middle and is installed on the edge of the manhole cover 1. The bolt 402 is a cylindrical part installed in the round hole of the guide seat 403 and can move freely in the round hole.

[0036] Emergency lock 6 is installed away from main lock 2. It can be equipped with a mechanical lock or an electronic lock that is wirelessly powered and opened by rotating an electronic key.

[0037] like Figure 7 As shown, the push rod 5 has a circular hole 501 near the emergency lock 6 end, and the second guide pin 9 is set in this circular hole. The push rod 5 has a first guide groove 502 near the split connecting rod end. The first guide pin 405 moves in the first guide groove when the main lock 2 is switched on and off. The push rod 5 has a threaded hole 503 in the middle, and the third guide pin 10 is rigidly connected to the push rod 5 through this hole.

[0038] The guide plate 8 is installed on the main lock housing 201. When the fully automatic manhole cover lock is configured as a three-link mechanism, the guide plate 8 is set on the symmetrical line of the two links. The guide plate has a second guide groove 801 and a third guide groove 802. When the emergency lock 6 is opened, the push rod 5 is ensured to move on the set trajectory through the cooperation of the second guide groove 801, the third guide groove 802, the second guide pin 9, and the third guide pin 10 on the guide plate 8.

[0039] like Figure 8 As shown, one end of the emergency lock lever 7 has an oblong hole 701, which is rigidly connected to the emergency lock 6 through the oblong hole. The other end has a U-shaped groove 702. The U-shaped groove cooperates with the second guide pin 9 and the second guide groove 801 of the guide plate 8 to transmit the rotational motion from the emergency lock 6 to the push rod 5. When the emergency lock 6 is damaged by an external force, the U-shaped groove 702 separates from the second guide pin 9 first, ensuring that the push rod 5 and other components are not affected by the external force.

[0040] Lock opening and closing principle:

[0041] When the main lock 2 is opened, the control board 202 receives the unlocking command wirelessly or via wired connection, starts the reduction motor 203 to rotate 90 degrees clockwise, and the reduction motor 203 drives the actuating disc 3 to rotate. This, in turn, pulls the connecting rod via the connecting shaft 301 on the actuating disc 3, retracting the bolt 402 and opening the main lock 2. Figure 3 As shown;

[0042] When the main lock 2 is closed, and the control board 202 receives an unlocking command wirelessly or via wired means, or when the unlocking time exceeds a set value, the starting motor reverses 90 degrees. The reduction motor 203 drives the actuating disc 3 to rotate, and the connecting shaft 301 on the actuating disc 3 pulls the connecting rod to push out the bolt 402, thus closing the main lock 2. Figure 1 As shown;

[0043] In an emergency, rotate the emergency lock 6 with the key. The emergency lock 6 lever 7 rotates, which drives the push rod 5 through the U-shaped groove 702. The push rod 5 pushes open the split connecting rod, causing the straight connecting rod 404 and the bent connecting rod 406 to form an angle. At the same time, it causes the bolt 402 to retract along the guide seat 403's round hole 407, thus unlocking the lock. Figure 4 As shown;

[0044] When locking in an emergency, rotate the emergency lock 6 in the opposite direction. The lever 7 of the emergency lock 6 rotates, driving the push rod 5 through the U-shaped groove 702. The push rod 5 pulls back the split connecting rod, causing the bolt 402 to extend along the round hole 407 of the guide seat 403. When the straight connecting rod 404 and the bent connecting rod 406 of the split connecting rod are aligned, the bolt 402 is fully extended, and the emergency lock 6 is closed in place. Figure 1 As shown;

[0045] The fully automatic manhole cover lock 1 with three sets of linkage mechanisms 4 and the fully automatic manhole cover lock 1 with a single set of linkage mechanisms 4 have the same emergency opening and closing principle. When the fully automatic manhole cover lock 1 with three sets of linkage mechanisms 4 is opened and closed in an emergency, the emergency lock 6 needs to drive the two sets of separate linkages to move simultaneously.

[0046] This utility model is limited only by the claims and their full scope and equivalents. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A fully automatic manhole cover lock based on a novel emergency unlocking method, comprising a main lock (2) installed on the manhole cover (1), characterized in that: The output end of the main lock (2) is fixedly connected to a dial (3), and one or more connecting shafts (301) are evenly distributed on the end face of the dial (3). Each connecting shaft (301) is hinged to a linkage mechanism (4). It also includes an emergency lock (6) installed on the manhole cover (1), the emergency lock (6) being located away from the main lock (2), the emergency lock (6) being hinged to a push rod (5) via a lever (7), and the other end of the push rod (5) being hinged to any linkage mechanism (4).

2. The fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 1, characterized in that, The main lock (2) includes a housing (201), inside which is provided a control board (202) and a reduction motor (203). The control board (202) is electrically connected to the reduction motor (203). The output shaft (20301) of the reduction motor (203) passes through the housing (201) and is fixedly connected to the center of the dial (3). A guide plate (8) is installed on the housing (201), and a second guide groove (801) and a third guide groove (802) are provided on the guide plate (8).

3. The fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 1, characterized in that, The linkage mechanism (4) includes a guide seat (403) and a locking bolt (402) passing through the guide seat (403), on which a connecting rod is mounted.

4. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 3, characterized in that, The connecting rod is an integral connecting rod (401). One end of the integral connecting rod (401) is hinged to the actuating disk (3) through a connecting shaft (301), and the other end of the integral connecting rod (401) is movably connected to the locking bolt (402) through a cylindrical pin (408).

5. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 3, characterized in that, The connecting rod is a split connecting rod, which includes a straight connecting rod (404) and a bent connecting rod (406). The straight connecting rod (404) and the bent connecting rod (406) are movably connected by a first guide pin (405). The end of the straight connecting rod (404) that is different from the bent connecting rod (406) is movably connected to a locking bolt (402) by a cylindrical pin (408). The end of the bent connecting rod (406) that is different from the straight connecting rod (404) is hinged to the actuating disk (3) by a connecting shaft (301).

6. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 3, characterized in that, The guide seat (403) has a circular hole (407) in the middle, and the locking bolt (402) is a cylindrical structure and is movably installed in the circular hole (407).

7. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 5, characterized in that, The push rod (5) has a circular hole (501) at one end near the emergency lock (6), and a first guide groove (502) at one end near the split connecting rod. A second guide pin (9) is installed in the circular hole (501), and the first guide pin (405) moves in the first guide groove (502).

8. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 7, characterized in that, The push rod (5) has a threaded hole (503) in the middle, and the push rod (5) is connected to a third guide pin (10) through the threaded hole (503).

9. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 2 or 8, characterized in that, The third guide pin (10) slides in the third guide groove (802), and the second guide pin (9) slides in the second guide groove (801).

10. A fully automatic manhole cover lock based on a novel emergency unlocking method according to claim 9, characterized in that, One end of the lever (7) is provided with a waist-shaped hole (701), and the lever (7) is fixedly connected to the emergency lock (6) through the waist-shaped hole (701). The other end of the lever (7) is provided with a U-shaped groove (702), and the U-shaped groove (702) is movably connected to the second guide pin (9).

Images