Electronic key for intelligent well lid

Abstract

The utility model relates to the technical field of well lid locks, and discloses an electronic key for an intelligent well lid, the electronic key comprises a base plate, the end face of the base plate is provided with a mounting groove, the groove bottom of the mounting groove is provided with an RFID chip, the bottom of the base plate is provided with a fixing groove, one side of the groove wall of the fixing groove is hinged with a rotating rod, one side of the rotating rod is provided with a pinch bar, and the pinch bar is connected with the RFID chip. A strip-shaped groove is formed in the rod wall of the pry rod, a clamping rod is hinged to the interior of the strip-shaped groove, a torsional spring is fixedly arranged between the side wall of the clamping rod and the groove wall of the strip-shaped groove, an anti-falling mechanism is installed on the groove wall of the installation groove, and a stretching assembly is jointly installed on the rotating rod and the pry rod. After the lock of the intelligent well lid is unlocked, personnel can be assisted in rapidly pulling the well lid open, the use convenience is improved, and a special lid prying tool does not need to be carried.

Description

Technical Field

[0001] The present application relates to the technical field of manhole cover locks, and in particular to an electronic key for a smart manhole cover. Background Art

[0002] With the application of intelligent technology, smart manhole covers have been upgraded a lot compared to traditional manhole covers. Smart manhole covers can monitor the status of the manhole covers in real time, such as whether they are opened, whether there are any abnormalities, etc., and can also issue alarms in time, which can improve the safety of the manhole covers and reduce the occurrence of accidents.

[0003] At present, smart locks are one of the important components of smart manhole covers. There are many types of smart locks. The more common one is to use wireless radio frequency identification technology in conjunction with electronic locks to achieve the effect of smart locking of manhole covers. Usually, a card reader is embedded inside the manhole cover. When a person holds an electronic key (with a chip inside) close to the reading position of the manhole cover, the card reader inside it will send out a radio frequency signal. After receiving the signal, the chip will return a radio wave containing specific information. After comparison by the smart lock, if the comparison information is accurate, the lock will automatically open. If the comparison information is wrong, the lock will not automatically open. After the lock is opened, the person also needs to insert a special pry bar into the circular hole in the center of the manhole cover, and then lift the manhole cover (even if the manhole cover rotates around the hinge to open it) to open it. However, this will result in the need to carry not only the electronic key but also a special pry bar when opening the manhole cover, which is inconvenient to use. Utility Model Content

[0004] The purpose of this application is to solve the problem in the prior art that after the lock is opened, personnel need to insert a special pry bar into the circular hole in the center of the manhole cover and then lift the manhole cover to open it. However, when opening the manhole cover, not only an electronic key but also a special pry bar need to be carried, which is inconvenient to use. An electronic key for a smart manhole cover is proposed.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] An electronic key for a smart manhole cover comprises a base plate, an end face of the base plate is provided with a mounting groove, an RFID chip is installed at the bottom of the mounting groove, a fixing groove is provided at the bottom of the base plate, a rotating rod is hingedly connected to one side of the groove wall of the fixing groove, a pry bar is provided at one side of the rotating rod, a bar wall of the pry bar is provided with a strip groove, a clamping rod is hingedly connected to the inside of the strip groove, a torsion spring is fixedly provided between the side wall of the clamping rod and the groove wall of the strip groove, an anti-fall mechanism is installed on the groove wall of the mounting groove, and a stretching assembly is installed together with the rotating rod and the pry bar.

[0007] Preferably, the anti-fall mechanism includes a circular groove opened on the side wall of the base plate, and the bottom of the circular groove is slidably connected to a limiting rod, a pulling block is fixedly installed on the rod end of the limiting rod, and a first spring is fixedly provided between the pulling block and the bottom of the circular groove, and the rod wall of the limiting rod is arranged to abut against the rod wall of the locking rod.

[0008] Preferably, the stretching assembly comprises a telescopic rod fixedly mounted on the end of the pry rod, a telescopic slot is formed at the end of the rotating rod, and a tension spring is fixedly provided between the bottom of the telescopic slot and the telescopic rod.

[0009] Preferably, a limit stopper is fixedly installed on one side of the interior of the strip groove.

[0010] Preferably, a plastic plate is fixedly mounted on the notch of the mounting slot.

[0011] Preferably, two sliding blocks are fixedly mounted on the rod wall of the telescopic rod, and two sliding grooves matching the sliding blocks are formed on the groove wall of the telescopic groove.

[0012] Compared with the prior art, the present application provides an electronic key for a smart manhole cover, which has the following beneficial effects:

[0013] 1. The electronic key for the smart manhole cover can be used as the electronic key of the smart manhole cover through the cooperation of the provided base plate, the installation slot, and the RFID chip. The provided fixed slot, the rotating rod, the pry bar, the strip slot, the clamping rod, and the torsion spring can cooperate with each other. After the lock of the smart manhole cover is opened, the cooperation of the rotating rod, the pry bar, and the clamping rod can be used to quickly assist personnel in pulling open the manhole cover, thereby improving the convenience of use without the need to carry special prying tools.

[0014] 2. The electronic key for the smart manhole cover can limit the rotation rod and the like when not in use through the anti-fall mechanism to prevent the rotation rod from rotating out at will. The stretching component can be easily pulled out to extend the overall length of the pry bar, thereby improving the convenience of prying the cover.

[0015] Moreover, the parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. After the lock of the smart manhole cover is opened, the application can assist personnel to quickly pull open the manhole cover, thereby improving the convenience of use and eliminating the need to carry special tools for prying the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an electronic key for a smart manhole cover proposed in this application;

[0017] Figure 2 A schematic diagram of the connection structure of a rotating rod and a pry bar of an electronic key for a smart manhole cover proposed in this application;

[0018] Figure 3 This is a schematic diagram of the connection structure of a pry bar and a locking bar of an electronic key for a smart manhole cover proposed in this application.

[0019] In the figure: 1. base plate; 2. mounting slot; 3. RFID chip; 4. fixing slot; 5. rotating rod; 6. pry bar; 7. strip slot; 8. clamping rod; 9. torsion spring; 10. round slot; 11. limit rod; 12. pull block; 13. first spring; 14. telescopic rod; 15. telescopic slot; 16. tension spring; 17. limit block; 18. plastic plate; 19. slider; 20. slide slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0021] Reference Figure 1-3 An electronic key for a smart manhole cover comprises a substrate 1, an end face of the substrate 1 is provided with a mounting groove 2, and an RFID chip 3 is installed at the bottom of the mounting groove 2, a fixing groove 4 is provided at the bottom of the substrate 1, and a rotating rod 5 is hinged on one side of the groove wall of the fixing groove 4, a pry bar 6 is provided on one side of the rotating rod 5, a bar wall of the pry bar 6 is provided with a strip groove 7, a clamping rod 8 is hinged inside the strip groove 7, a torsion spring 9 is fixed between the side wall of the clamping rod 8 and the groove wall of the strip groove 7, an anti-fall mechanism is installed on the groove wall of the mounting groove 2, and a stretching component is installed together with the rotating rod 5 and the pry bar.

[0022] The anti-fall mechanism includes a circular groove 10 opened on the side wall of the base plate 1, and the bottom of the circular groove 10 is slidably connected to a limiting rod 11, a pull block 12 is fixedly installed on the rod end of the limiting rod 11, and a first spring 13 is fixedly provided between the pull block 12 and the bottom of the circular groove 10, and the rod wall of the limiting rod 11 is arranged to abut against the rod wall of the locking rod 8. Through this arrangement, the rotating rod 5 can be prevented from rotating and falling out at will, thereby improving the overall convenience of carrying.

[0023] The stretching assembly includes a telescopic rod 14 fixedly mounted on the end of the pry bar 6, a telescopic slot 15 is provided at the end of the rotating rod 5, and a tension spring 16 is fixedly provided between the bottom of the telescopic slot 15 and the telescopic rod 14. Through this arrangement, the overall length of the pry bar 6 can be appropriately extended.

[0024] A limit stopper 17 is fixedly installed on one side of the inner side of the strip groove 7. This arrangement can prevent the clamping rod 8 from rotating excessively and improve the stability of the clamping rod 8 when opening the manhole cover.

[0025] A plastic plate 18 is fixedly mounted on the notch of the mounting slot 2 . This arrangement can prevent the RFID chip 3 from contacting external foreign objects, and the plastic plate 18 will not affect the signal reception and reflection of the RFID chip 3 .

[0026] Two sliders 19 are fixedly mounted on the rod wall of the telescopic rod 14, and two slide grooves 20 matching the sliders 19 are provided on the groove wall of the telescopic groove 15. The cooperation between the sliders 19 and the slide grooves 20 can prevent the tension spring 16 from being overstretched.

[0027] In the present application, when it is necessary to open the smart manhole cover, the RFID chip 3 of the substrate 1 is placed close to the read-write area of ​​the smart manhole cover, and the reader inside the manhole cover will send a radio frequency identification signal. After receiving the signal, the RFID chip 3 will reflect specific information to the reader, and the reader reads the information and automatically opens the electronic lock of the smart manhole cover after the information is accurately compared. Then, the personnel should rotate the rotating rod 5 out of the fixed groove 4, and align the pry bar 6 with the circular hole in the center of the smart manhole cover, and then insert the pry bar 6. Under the action of the circular hole, the hole wall of the circular hole will first squeeze the card rod 8 into the strip groove 7, and when the card rod 8 moves to the bottom of the circular hole, under the action of the torsion spring, the card rod 8 will quickly pop out of the strip groove 7, and then the personnel pulls the rotating rod 5, the pry bar 6 and the card rod 8 through the substrate 1, which can drive the manhole cover to rotate and open. Then, the personnel presses the card rod 8 into the strip groove 7 from the other end of the opened manhole cover, and pulls the pry bar 6 and the rotating rod 5 out of the circular hole.

[0028] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. An electronic key for a smart manhole cover, comprising a substrate (1), characterized in that: The end surface of the substrate (1) is provided with a mounting groove (2), and an RFID chip (3) is installed at the bottom of the mounting groove (2); the bottom of the substrate (1) is provided with a fixing groove (4), and a rotating rod (5) is hingedly connected to one side of the groove wall of the fixing groove (4); a pry bar (6) is provided on one side of the rotating rod (5); a bar wall of the pry bar (6) is provided with a strip groove (7); a clamping rod (8) is hingedly connected inside the strip groove (7); a torsion spring (9) is fixedly provided between the side wall of the clamping rod (8) and the groove wall of the strip groove (7); an anti-fall mechanism is installed on the groove wall of the mounting groove (2); and a stretching assembly is installed together with the rotating rod (5) and the pry bar.

2. The electronic key for a smart manhole cover according to claim 1, characterized in that: The anti-fall mechanism comprises a circular groove (10) provided on the side wall of the base plate (1), and the bottom of the circular groove (10) is slidably connected to a limiting rod (11), a pull block (12) is fixedly installed on the rod end of the limiting rod (11), and a first spring (13) is fixedly provided between the pull block (12) and the bottom of the circular groove (10), and the rod wall of the limiting rod (11) is arranged to abut against the rod wall of the clamping rod (8).

3. The electronic key for a smart manhole cover according to claim 1, characterized in that: The stretching assembly comprises a telescopic rod (14) fixedly mounted on the end of a pry rod (6); a telescopic slot (15) is provided at the end of the rotating rod (5); and a stretching spring (16) is fixedly provided between the bottom of the telescopic slot (15) and the telescopic rod (14).

4. The electronic key for a smart manhole cover according to claim 1, characterized in that: A limit stopper (17) is fixedly mounted on one side of the interior of the strip-shaped groove (7).

5. The electronic key for a smart manhole cover according to claim 1, characterized in that: A plastic plate (18) is fixedly mounted on the notch of the mounting groove (2).

6. The electronic key for a smart manhole cover according to claim 3, characterized in that: Two sliding blocks (19) are fixedly mounted on the rod wall of the telescopic rod (14), and two sliding grooves (20) matching the sliding blocks (19) are provided on the groove wall of the telescopic groove (15).

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