CN220645560U - Safety interlocking system - Google Patents

Abstract

The utility model discloses a safety interlocking system which comprises a lock shell, wherein a lock tongue is arranged in the lock shell, a lock head is arranged on the surface of the lock shell, a baffle plate is arranged in the lock shell, a sliding groove corresponding to the baffle plate is formed in the lock shell, a push rod is fixed on one side of the baffle plate, and a push plate is fixedly connected to one end of the push rod. The utility model is provided with a baffle plate, a chute, a push rod, a push plate, a spring, a rotary knob, a rotary shaft and a rotary plate, and after the power supply is powered off and the ground wire is hung, a safety key is inserted into a lock head to rotate so as to drive a lock tongue to move, so that a protective fence is opened. The rotation knob ninety degrees rotate clockwise to the rotation plate makes the push rod remove and drives the baffle to the lock shell outside removal, and the baffle is fixed in the lock shell outside, can separate the unexpected of protection rail and close, avoids leading to the power to continue the power supply, and other staff can be reminded to the existence of baffle simultaneously, and the operation area has personnel to be doing the operation.

Description

Safety interlocking system

Technical Field

The utility model relates to the technical field of safety interlocking, in particular to a safety interlocking system.

Background

The safety interlocking system is mainly an alarm and interlocking part in a factory control system, and is an important component in factory enterprise automatic control by executing alarm action or adjusting or stopping control on a detection result in the control system. In the production process, an interlocking device is widely adopted for ensuring normal operation, realizing automatic control and preventing accidents.

In the prior art, the safety interlock is often arranged on the protective fence, and an operator can open the fence door and carry a safety key to enter an operation area for work only when a power supply is powered off and is subjected to electricity inspection and ground wire hanging operation. However, the risk that the operating personnel is injured by other people exists, namely, the safety interlocking is closed due to the fact that the protective fence is subjected to external force, other staff is caused to misunderstand that the operating area is free of personnel, the equipment is electrified to cause injury, and when the interlocking is arranged on the power switch, the safety interlocking can still supply power to the power supply when the safety interlocking is closed due to the external force, and danger is possibly caused to the staff who is operating the equipment.

Disclosure of Invention

The utility model aims to provide a safety interlocking system, which solves the problems that in the prior art, the safety interlocking is closed by external force, other staff can be caused to misunderstand that no staff is in an operation area to cause damage to equipment when the equipment is electrified, and when the safety interlocking is arranged on a power switch, the power can still be supplied to the power supply when the safety interlocking is closed by the external force, and the danger is possibly caused to the staff operating the equipment.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a safety interlocking system, includes the lock shell, the inside spring bolt that is provided with of lock shell, and the lock shell surface is provided with the tapered end, the inside baffle that is provided with of lock shell, and the inside spout that corresponds with the baffle position of having seted up of lock shell, baffle one side is fixed with the push rod, push rod one end rigid coupling has the push pedal, and the push rod surface cover is equipped with the spring, the lock shell surface is provided with the knob, knob one side is fixed with the pivot, the inside rear-mounted of pivot insertion lock shell has the rotor plate.

Preferably, the outer surface of the rotary knob is sleeved with a knob sleeve, a protrusion is fixed on one side of the knob sleeve, and a groove corresponding to the protrusion is formed in the outer surface of the lock shell.

Preferably, the protrusion and the groove are in interference fit.

Preferably, the rotary knob and the knob sleeve are square.

Preferably, the surface of the push plate is provided with balls.

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

the utility model is provided with a baffle plate, a chute, a push rod, a push plate, a spring, a rotary knob, a rotary shaft and a rotary plate, when a power supply is powered off, electricity is tested, and after the ground wire is hung, a safety key is inserted into a lock head to rotate so as to drive a lock tongue to move, so that a protective fence is opened. The rotation knob ninety degrees that rotates clockwise to the rotor plate makes the push rod remove and drives the baffle to the lock shell outside removal, and the baffle is fixed in the lock shell outside, can separate the unexpected of protection rail and close, avoids leading to the power to continue the power supply, and other staff can be reminded to the existence of baffle simultaneously, and the operating area has personnel to carry out the operation, avoids operating personnel to face the risk of being hurt by other people. The ninety degrees of counterclockwise rotation of the rotating knob can lead the rotating plate to rotate counterclockwise without extruding the push plate, and the spring stretches to lead the baffle plate to enter the lock shell to realize the reset.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the appearance structure of the present utility model;

FIG. 2 is a schematic view of a baffle plate receiving structure according to the present utility model;

FIG. 3 is a schematic view of the baffle plate extension of the present utility model;

fig. 4 is a schematic view of a ball structure according to the present utility model.

In the figure: 1. a lock case; 2. a bolt; 3. a lock head; 4. a baffle plate; 5. a chute; 6. a push rod; 7. a spring; 8. a push plate; 9. a rotation knob; 10. a rotating shaft; 11. a rotating plate; 12. a knob sleeve; 13. a protrusion; 14. a groove; 15. and (3) rolling balls.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, in the embodiment of the utility model, a safety interlocking system comprises a lock shell 1, wherein a lock tongue 2 is arranged in the lock shell 1, a lock head 3 is arranged on the surface of the lock shell 1, after a power supply is powered off and is tested, a ground wire is hung, a safety key is inserted into the lock head 3 and rotated to drive the lock tongue 2 to move so as to open a protective fence;

referring to fig. 2-3, a baffle plate 4 is arranged inside a lock shell 1, a chute 5 corresponding to the position of the baffle plate 4 is formed inside the lock shell 1, a push rod 6 is fixed on one side of the baffle plate 4, a push plate 8 is fixedly connected to one end of the push rod 6, the push plate 8 is pushed to move in the rotating process of a rotating plate 11 to compress a spring 7, the push rod 6 moves to drive the baffle plate 4 to move towards the outside of the lock shell 1, the spring 7 is sleeved on the outer surface of the push rod 6, the push rod 7 stretches to drive the baffle plate 4 to move towards the inside of the lock shell 1, a rotating knob 9 is arranged on the outer surface of the lock shell 1, a rotating shaft 10 is fixed on one side of the rotating knob 9, the rotating knob 9 is rotated ninety degrees, the rotating shaft 10 is driven to rotate ninety degrees, and thus the rotating plate 11 is rotated ninety degrees, and the rotating shaft 10 is inserted into the lock shell 1 to fix the rotating plate 11;

referring to fig. 1, a knob sleeve 12 is sleeved on the outer surface of a rotary knob 9, a protrusion 13 is fixed on one side of the knob sleeve 12, a groove 14 corresponding to the protrusion 13 is formed on the outer surface of a lock shell 1, the knob sleeve 12 is sleeved on the rotary knob 9, the protrusion 13 enters the groove 14 to fix the knob sleeve 12, and then the position of the rotary knob 9 is fixed;

referring to fig. 1, the protrusion 13 and the groove 14 are in interference fit, and the interference fit increases friction between the protrusion 13 and the groove 14 so that the knob sleeve 12 can be stably connected with the lock case 1;

referring to fig. 1, the rotary knob 9 and the knob sleeve 12 are square, the square arrangement is convenient for the operator to rotate ninety degrees accurately, and the square side length is consistent, so that the knob sleeve 12 is convenient for being sleeved into the rotary knob 9;

referring to fig. 2-4, the surface of the push plate 8 is provided with balls 15, and the arrangement of the balls 15 reduces friction between the push plate 8 and the rotating plate 11.

The working principle and the using flow of the utility model are as follows: after the power supply is powered off and the ground wire is hung, a safety key is inserted into the lock head 3 and rotated to drive the lock tongue 2 to move so as to open the protective fence. Pulling knob cover 12 makes protruding 13 and recess 14 separation, clockwise rotation knob 9 rotates ninety degrees, then drive pivot 10 and rotate ninety degrees, thereby rotor plate 11 clockwise rotation ninety degrees, rotor plate 11 clockwise rotation in-process promotes push pedal 8 removal and makes spring 7 compress, push rod 6 removes and drives baffle plate 4 to the outside removal of lock shell 1, it is fixed to knob cover 12 on knob 9 protruding 13 gets into recess 14 to knob cover 12, and then knob 9 position is fixed, baffle plate 4 is fixed in lock shell 1 outside this moment, can separate the unexpected of protective fence and close, avoid leading to the power to continue supplying power, the existence of baffle plate 4 can remind other staff simultaneously, operating area has personnel to be doing the operation, avoid the operating personnel to face the risk of being injured by other people. After the work is finished, an operator pulls out the knob sleeve 12, the rotary knob 9 is rotated anticlockwise to enable the rotary plate 11 to rotate anticlockwise, the rotary plate 11 does not squeeze the push plate 8 any more, the spring 7 stretches to enable the push rod 6 to move to drive the baffle plate 4 to move towards the inside of the lock shell 1, and the protective fence is locked through the safety key.

Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a safety interlocking system, includes lock shell (1), lock shell (1) inside is provided with spring bolt (2), and lock shell (1) surface is provided with tapered end (3), its characterized in that: the novel lock is characterized in that a baffle plate (4) is arranged inside the lock shell (1), a chute (5) corresponding to the baffle plate (4) is formed in the lock shell (1), a push rod (6) is fixed on one side of the baffle plate (4), a push plate (8) is fixedly connected with one end of the push rod (6), a spring (7) is sleeved on the outer surface of the push rod (6), a rotating button (9) is arranged on the outer surface of the lock shell (1), a rotating shaft (10) is fixed on one side of the rotating button (9), and a rotating plate (11) is fixed after the rotating shaft (10) is inserted into the lock shell (1).

2. A safety interlock system according to claim 1 wherein: the rotary knob is characterized in that a knob sleeve (12) is sleeved on the outer surface of the rotary knob (9), a protrusion (13) is fixed on one side of the knob sleeve (12), and a groove (14) corresponding to the protrusion (13) is formed in the outer surface of the lock shell (1).

3. A safety interlock system according to claim 2 wherein: the protrusion (13) is in interference fit with the groove (14).

4. A safety interlock system according to claim 2 wherein: the rotary knob (9) and the knob sleeve (12) are square.

5. A safety interlock system according to claim 1 wherein: the surface of the push plate (8) is provided with balls (15).