Limited space violation operation blocking device

Abstract

The utility model relates to the technical field of locks, in particular to a limited space illegal operation blocking device which comprises a lock cylinder assembly, a protection assembly and a squeezing and pushing assembly, the lock cylinder assembly comprises a mandrel, and the squeezing and pushing assembly can push the lock cylinder assembly to release the locking state of the lock cylinder assembly under the action of external force. And the protection assembly can coaxially rotate with the core shaft when the lock cylinder assembly is in an unlocking state. By arranging the protection assembly, a second defensive line can be arranged in the vertical shaft, the situation that personnel without permission enter the vertical shaft illegally, danger is caused to underground personnel, and underground facilities are damaged is prevented, and the safety of the vertical shaft facilities is improved; by arranging the lock cylinder assembly and the extruding and pushing assembly, physical locking and unlocking of the lock are achieved, power supply is not needed, an unlocking command is remotely received in cooperation with an intelligent key, the operation authority of an operator is ensured, and wrong operation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent well lid technical field especially relates to a limited space illegal operation blocking device. BACKGROUND

[0002] The vertical shaft is usually arranged at the intersection or important node of the urban underground pipeline, and the well lid is arranged on the vertical shaft for the safety of the road personnel. However, the previous well lid usually only sets the well lid body as the first line of defense, and such design has many disadvantages, for example, when the well lid is lost, the vertical shaft is exposed, which causes great safety hazard to the road personnel; in addition, after the previous well lid is opened, the operation permission of the operation personnel is not confirmed, and the wrong operation is possible. CONTENT OF THE UTILITY MODEL

[0003] TECHNICAL OBJECT: In order to overcome the defects in the prior art, the utility model provides a limited space illegal operation blocking device, which can confirm the operation permission and improve the safety of the vertical shaft.

[0004] TECHNICAL SCHEME: In order to achieve the above object, the utility model discloses a limited space illegal operation blocking device, which comprises a lock core assembly, a protection assembly and a pushing assembly, the lock core assembly comprises a core shaft, the pushing assembly can push the lock core assembly to release the locking state under the action of external force, and the protection assembly can rotate coaxially with the core shaft when the lock core assembly releases the locking state.

[0005] Further, the lock core assembly further comprises a locking pawl and a ratchet coaxially arranged with the core shaft, the locking pawl is provided with a protruding tooth, and the protruding tooth is engaged with the ratchet to realize the locking state of the lock core assembly.

[0006] Further, the pushing assembly comprises a push rod, one end of the push rod can push the locking pawl away from the ratchet to release the locking state of the lock core assembly under the action of external force.

[0007] Further, the other end of the push rod is provided with a magnetic password assembly.

[0008] Further, the push rod is arranged on a mounting frame, a tension spring is arranged between one end of the locking pawl and the mounting frame, the other end of the locking pawl is provided with a rotating shaft, and the locking pawl can rotate around the rotating shaft.

[0009] Further, the protection assembly comprises a rotating arm and a limiting part, the limiting part is arranged at one end of the rotating arm, and the other end of the rotating arm is connected with the core shaft and can rotate coaxially with the core shaft.

[0010] Further, the lock core assembly and the pushing assembly are arranged in a shell, and a mounting seat and a key hole are arranged on the shell.

[0011] Further, the keyhole can be inserted with the smart key, the smart key is provided with the magnetic code device, and the smart key can remotely receive the unlocking command.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The limited space illegal operation blocking device of the utility model, through setting the protection assembly, can set "the second defense line" in the vertical shaft, prevents the personnel without authority from illegally entering the well, causes self danger to the personnel down the well, causes damage to the underground facilities, improves the safety of the vertical shaft facilities, through setting the lock core assembly and the extrusion and pushing assembly, realizes the physical locking and unlocking of the lock, does not need power supply, cooperates the smart key remote receiving unlocking command, ensures the operation personnel operating authority, avoids the wrong operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the lock core assembly, protection assembly and extrusion and pushing assembly cooperation structure schematic diagram;

[0016] Figure 3 It is the lock core assembly and extrudence and pushing assembly cooperation structure schematic diagram;

[0017] Figure 4 It is the stop pawl structure schematic diagram.

[0018] In the drawing, 10, lock core assembly;11, core shaft;12, stop pawl;13, ratchet wheel;14, protruding tooth;15, tension spring;16, rotating shaft;20, protection assembly;21, rotating arm;22, limiting portion;30, extrusion and pushing assembly;31, push rod;32, magnetic code assembly;33, mounting frame;40, shell;41, mounting seat;42, keyhole;50, smart key. DETAILED DESCRIPTION

[0019] The following combines the drawings Figure 1 to the drawings Figure 4 The principle and characteristics of the utility model are described, the examples are only used for explaining the utility model, and are not used for limiting the range of the utility model.

[0020] The limited space illegal operation blocking device comprises a lock core assembly 10, a protection assembly 20, a pushing assembly 30 and a shell 40. The lock core assembly 10 and the pushing assembly 30 are arranged in the shell 40, and the protection assembly 20 is arranged outside the shell 40 and is rotationally connected with the shell 40. The pushing assembly 30 can push the lock core assembly 10 to release the locking state under the action of an external force, and specifically, the external force is a magnetic password repulsion force. The protection assembly 20 can rotate relative to the shell 40 when the lock core assembly 10 releases the locking state. A mounting seat 41 is arranged on the shell 40, so that the whole device can be fixedly installed on the shaft wall of a vertical shaft. A key hole 42 is further arranged on the shell 40, and an intelligent key 50 can be inserted into the key hole 42. The intelligent key 50 can remotely receive an unlocking command, and a magnetic password device is arranged inside the intelligent key 50.

[0021] The lock core assembly 10 comprises a core shaft 11, a stop pawl 12 and a ratchet 13 coaxially arranged with the core shaft 11. The stop pawl 12 is provided with a protruding tooth 14, and the protruding tooth 14 is engaged with the ratchet 13 to realize the locking state of the lock core assembly 10.

[0022] The protection assembly 20 comprises a rotating arm 21 and a limiting portion 22. The limiting portion 22 is arranged at one end of the rotating arm 21, and the other end of the rotating arm 21 is connected with the core shaft 11 and can rotate coaxially with the core shaft 11. The rotating arm 21 is provided with two symmetrical rotating arms, and an inward limiting bend is arranged at the end close to the core shaft 11, which is used for limiting the rotation angle of the rotating arm 21. The limiting portion 22 can be circular or rectangular, and is arranged perpendicularly to the shaft axis and slightly smaller than the cross section of the shaft, so as to effectively shield the shaft.

[0023] The pushing assembly 30 comprises a push rod 31, a magnetic password assembly 32 and a mounting frame 33. The push rod 31 is slidingly arranged on the mounting frame 33, and the mounting frame 33 is fixedly installed in the shell 40. One end of the push rod 31 can push the stop pawl 12 away from the ratchet 13 under the action of an external force to release the locking state of the lock core assembly 10, and the magnetic password assembly 32 is arranged at the other end of the push rod 31. A tension spring 15 is arranged between one end of the stop pawl 12 and the mounting frame 33, and a rotating shaft 16 is arranged at the other end of the stop pawl 12. The rotating shaft 16 is fixedly connected with the shell 40, and the stop pawl 12 can rotate around the rotating shaft 16.

[0024] The working process of the limited space illegal operation blocking device is as follows:

[0025] The worker carries the smart key 50, opens the well lid, inserts the smart key 50 into the key hole 42, the smart key 50 remotely receives the unlocking command, judges whether it is the designated well lid, determines, energizes the magnetic code device in the smart key 50, and is repulsive with the magnetic code assembly 32 to generate a pushing force, pushes the magnetic code assembly 32 to move and further pushes the push rod 31, the push rod 31 pushes the stop pawl 12 to rotate around the rotating shaft 16, the convex teeth 14 are away from the ratchet wheel 13, the locking state of the lock core assembly 10 is released, at this time the worker manually lifts the limiting part 22, and can enter the well for operation. After the operation is completed, the limiting part 22 is lowered, the smart key 50 is pulled out, the tension spring 15 pulls the stop pawl 12 to reset, and the lock core assembly 10 is relocked.

[0026] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A limited space violation operation blocking device, characterized by, The lock cylinder assembly (10) includes a spindle (11), the extrusion assembly (30) can push the lock cylinder assembly (10) to release its locked state under external force, and the protection assembly (20) can rotate coaxially with the spindle (11) when the lock cylinder assembly (10) is released.

2. The limited space violation work stoppage device of claim 1, wherein, The lock cylinder assembly (10) further includes a stop pawl (12) and a ratchet (13) coaxially arranged with the spindle (11), the stop pawl (12) is provided with a protruding tooth (14), and the protruding tooth (14) is engaged with the ratchet (13) to realize the locked state of the lock cylinder assembly (10).

3. The limited space violation work stoppage device of claim 2, wherein, The extrusion assembly (30) includes a push rod (31), one end of the push rod (31) can push the stop pawl (12) away from the ratchet (13) under external force to release the locked state of the lock cylinder assembly (10).

4. The limited space violation work stoppage device of claim 3, wherein, The other end of the push rod (31) is provided with a magnetic code assembly (32).

5. A limited space violation work stoppage device according to claim 3 or 4, characterised in that, The push rod (31) is arranged on a mounting bracket (33), a tension spring (15) is arranged between one end of the stop pawl (12) and the mounting bracket (33), the other end of the stop pawl (12) is provided with a rotating shaft (16), and the stop pawl (12) can rotate around the rotating shaft (16).

6. The limited space violation work stoppage device of claim 1, wherein, The protection assembly (20) includes a rotating arm (21) and a limiting part (22), the limiting part (22) is arranged at one end of the rotating arm (21), and the other end of the rotating arm (21) is connected with the spindle (11) and can rotate coaxially with the spindle (11).

7. The limited space violation work stoppage device of claim 4, wherein, The lock cylinder assembly (10) and the extrusion assembly (30) are arranged in a housing (40), and the housing (40) is provided with a mounting seat (41) and a keyhole (42).

8. The limited space violation work stoppage device of claim 7, wherein, The keyhole (42) can be inserted into a smart key (50), the smart key (50) is provided with a magnetic code device, and the smart key (50) can remotely receive an unlocking command.

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