Interlocking device

Abstract

The utility model relates to the technical field of electrical machinery, in particular to an interlocking device. Comprising a machine cover part, a positioning bolt, a displacement sensor, a machine base, a lifting lever part and a rotating cylinder part, the machine cover part is fixedly connected with the machine base through a flange bolt; a radial flange of the rotating cylinder part is connected to the machine cover part, and an axial flange is connected to the lifting lever part; the positioning bolt is installed on the machine cover part and used for pressing or loosening the displacement sensor. The lifting lever part provides hydraulic power to drive the rotating cylinder part to move up and down; the displacement sensor is installed on the machine base and used for detecting the locking or loosening state in real time. And the locking state of the machine cover part is monitored in real time through the displacement sensor. During maintenance, the displacement sensor is loosened, the system automatically locks the starting function of the equipment, the risk of misoperation or accidental starting is completely eradicated, and the personal safety of maintenance personnel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electrical machinery technology, specifically to an interlocking device. Background Technology

[0002] In the maintenance and repair of industrial equipment, especially heavy machinery, it is usually necessary to keep the equipment completely shut down during maintenance to ensure operator safety and prevent accidental restarts. However, the following problems are commonly found in existing technologies:

[0003] Traditional equipment maintenance methods lack reliable interlocking mechanisms. The equipment control system may be restarted unexpectedly due to human error (such as accidentally pressing a button) or system failure, which may expose maintenance personnel to the risk of injury from mechanical moving parts.

[0004] Some existing interlocking devices rely on mechanical limits or electrical interlocks, but their structural design is cumbersome. During maintenance, components need to be disassembled or adjusted multiple times, which takes a long time and makes it difficult to quickly restore equipment operation. Utility Model Content

[0005] This utility model provides an interlocking device, the purpose of which is to achieve safe locking and efficient operation during maintenance by integrating hydraulic drive, displacement sensing and mechanical interlocking design.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An interlocking device includes: a cover component, a positioning bolt, a displacement sensor, a base, a lifting rod portion, and a rotating cylinder portion;

[0008] The cover component is connected and fixed to the base by flange bolts;

[0009] The radial flange of the rotating cylinder is connected to the cover component, and the axial flange is connected to the lifting bar component;

[0010] The positioning bolts are installed on the cover component and are used to tighten or loosen the displacement sensor;

[0011] The lifting rod provides hydraulic power to drive the rotating cylinder to move up and down.

[0012] The displacement sensor is mounted on the base and is used to detect the locking or loosening state in real time.

[0013] Furthermore, the lifting bar is a hydraulic cylinder structure, with its piston shaft axially connected to the rotating cylinder, and the lifting and lowering movements of the rotating cylinder and the cover component are realized by hydraulic drive.

[0014] Furthermore, the displacement sensor is a non-contact sensor, which triggers a locking or unlocking signal by tightening or loosening the positioning bolt.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] The locking status of the cover components is monitored in real time by a displacement sensor. When the displacement sensor is released during maintenance, the system automatically locks the equipment start function, eliminating the risk of misoperation or accidental start-up and ensuring the personal safety of maintenance personnel.

[0017] The hydraulically driven lifting bar and rotating cylinder work together to ensure that the lifting and rotating of the cover components is smooth and controllable, avoiding safety hazards caused by mechanical loss of control. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an interlocking device;

[0020] Figure 2 A state diagram of the interlock device when the equipment can be started;

[0021] Figure 3 This is a status diagram of the interlock device when the equipment cannot be started during maintenance.

[0022] In the diagram, 1 is the machine cover; 2 is the positioning bolt; 3 is the displacement sensor; 4 is the machine base; 5 is the lifting rod; and 6 is the rotating cylinder.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] like Figures 1-3 As shown, an interlocking device includes: a cover component 1, a positioning bolt 2, a displacement sensor 3, a base 4, a lifting rod 5, and a rotating cylinder 6.

[0028] The cover component 1 serves as the main protective structure of the equipment, covering and protecting the internal mechanical components. It also participates in mechanical linkage, adjusting its position through lifting and rotating movements during maintenance to provide operating space for maintenance personnel. The cover component 1 is fixed to the base 4 by flange bolts. During maintenance, it disengages from its original position along with the lifting and rotating motion of the rotating cylinder 6, ensuring the safety and convenience of the maintenance process. A quick-release structure is provided at the flange connection between the cover component 1 and the base 4; during maintenance, simply loosening the bolts is sufficient to separate the cover component 1 from the base 4.

[0029] The positioning bolt 2 is installed on the cover component 1 and is used to tighten or loosen the displacement sensor 3; the positioning bolt 2 adjusts the trigger state of the displacement sensor 3. By tightening or loosening the bolt, the tightening or loosening of the displacement sensor 3 is directly controlled, thereby switching between the locking signal and the loosening signal. Its tightness or looseness is directly related to the equipment start-up authority and is a key actuator for safety interlocking.

[0030] The base 4 serves as the fixed base of the device, bearing the weight of the cover component 1, rotating cylinder 6, and other structures, and providing stable support through flange connections. It internally houses components requiring maintenance, and during inspection, the cover component 1 is removed to expose the work area.

[0031] The lifting lever 5 provides hydraulic power to drive the rotating cylinder 6 to move up and down. As a hydraulic power unit, the lifting lever 5 drives the rotating cylinder 6 and the cover component 1 to rise and fall through the linear motion of the piston shaft. It provides smooth lifting power to ensure that the cover component 1 stops accurately at a preset height, creating conditions for subsequent rotation.

[0032] The displacement sensor 3 is mounted on the base 4 and is used to detect the locking or loosening state in real time. The displacement sensor 3 detects the locking state of the cover component 1 in real time and transmits the signal to the control system. When a loosening state is detected (such as during maintenance), the system immediately triggers the equipment locking function; when the tightening state reaches a preset threshold, the lock is released to ensure that the equipment operates only under safe conditions.

[0033] The displacement sensor 3 is a non-contact sensor. It triggers a locking or unlocking signal by tightening or loosening the positioning bolt 2, ensuring the stability and anti-interference of signal transmission.

[0034] The lifting rod 5 is a hydraulic cylinder structure, and its piston shaft is axially connected to the rotating cylinder 6. The lifting and lowering movements of the rotating cylinder 6 and the cover component 1 are realized by hydraulic drive.

[0035] The radial flange of the rotating cylinder 6 is connected to the cover component 1, and the axial flange is connected to the lifting rod 5. When the rotating cylinder 6 is lifted to a preset height, the cover component 1 can be manually pushed to rotate to a specified angle to create maintenance space. When resetting, the cover component 1 is rotated and aligned and then lowered through the lifting rod 5 to be fixedly connected to the flange of the base 4.

[0036] The rotating cylinder 6 connects the lifting lever 5 and the cover component 1, converting the hydraulically driven linear motion into a combined lifting and rotating action. After being lifted to a designated height, the cover component 1 can be manually pushed to rotate to a specific angle, creating maintenance space; during resetting, precise alignment ensures rapid tightening of the flange bolts.

[0037] When the rotating cylinder 6 and the lifting rod 5 are lowered and reset, the linkage structure detects the pressing state through the displacement sensor 3 and stops moving after reaching the preset threshold, ensuring the precise alignment of the cover component 1 and the base 4.

[0038] The cover assembly 1 is bolted to the base 4 via flanges (the bolts are loosened during maintenance). The radial flange of the rotating cylinder 6 is connected to the cover assembly 1, and the axial flange is connected to the lifting cylinder 5. During maintenance, the cover assembly 1 moves up and down and rotates with the rotating cylinder 6. Positioning bolts 2 are installed on the cover assembly 1 to tighten or loosen the displacement sensor 3. The lifting cylinder 5 provides power to drive the rotating cylinder 6 up and down. The displacement sensor 3 is installed on the base 4 to transmit locking and unlocking signals to the control system.

[0039] When the equipment is shut down for maintenance, hydraulic oil enters the lifting cylinder 5. The piston in the lifting cylinder 5 moves upward, pushing the rotating cylinder 6 upward. The rotating cylinder 6 then moves the cover component 1 upward. When it reaches a certain height, the cover component 1 is manually pushed to rotate. After rotating to a certain angle, maintenance personnel can begin to inspect and replace relevant components in the base 4. At this time, the positioning bolt 2 installed on the cover component 1 has been loosened by the displacement sensor 3. The loosening signal is transmitted to the control system, and the system automatically locks the machine. At this time, whether the equipment is started manually by a button or by the system with a one-button start, it will be ineffective. The machine will always be in a completely stopped state. That is, when the displacement sensor 3 is loosened, the equipment cannot be started. This ensures the operational safety of maintenance personnel and avoids accidents caused by accidental manual or system startup. When maintenance is completed, the machine cover component 1 is manually rotated until the positioning bolt 2 aligns with the displacement sensor 3. At this time, the lifting rod 5 drives the rotating cylinder 6 and the machine cover component 1 to slowly descend. When it descends to the point where the positioning bolt 2 presses against the displacement sensor 3, it stops moving. The maintenance personnel tighten the flange connecting bolts between the machine cover component 1 and the machine base 4. At this time, the displacement sensor 3 transmits a locking signal to the control system. If conditions permit, the main equipment can be started manually or by the system with one button.

[0040] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An interlock device, characterized by Include: Machine cover component (1), positioning bolt (2), displacement sensor (3), machine base (4), lifting lever (5) and rotating cylinder (6); The machine cover component (1) is fixedly connected with the machine base (4) through flange bolts; The rotating cylinder (6) is connected to the machine cover component (1) through a radial flange and connected to the lifting lever (5) through an axial flange; The positioning bolt (2) is installed on the machine cover component (1) and used for pressing or loosening the displacement sensor (3); The lifting lever (5) provides hydraulic power to drive the rotating cylinder (6) to move up and down; The displacement sensor (3) is installed on the machine base (4) and used for real-time detection of the locking or loosening state.

2. An interlock device according to claim 1, wherein: The lifting lever (5) is a hydraulic cylinder structure, the piston shaft of which is connected with the rotating cylinder (6) in an axial direction, and the lifting and lowering movements of the rotating cylinder (6) and the machine cover component (1) are realized through hydraulic driving.

3. An interlock device according to claim 1, wherein: The displacement sensor (3) is a non-contact sensor, which triggers the locking or loosening signal through the pressing or loosening of the positioning bolt (2).

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