CN221075465U - Quick-opening blind plate safety interlocking device - Google Patents

Abstract

The utility model discloses a quick-opening blind plate safety interlocking device, which relates to the technical field of blind plate structures and comprises a pressure relief bolt, an electromagnet, a control box, a mounting bracket and a pressure sensor; the mounting bracket is used for being connected with the outer wall of the quick-opening blind plate, the electromagnet and the control box are arranged on the mounting bracket, and the electromagnet is electrically connected with the control module in the control box; the pressure relief bolt and the pressure sensor are both arranged on the outer wall of the quick-opening blind plate, the pressure sensor is electrically connected with a control module in the control box, and a positioning groove is arranged on the outer wall of the pressure relief bolt and is used for being matched with the extending shaft of the electromagnet. The quick-opening blind plate safety interlocking device has the advantages of simple structure, convenience in installation and wide application range, and can be used in blind plates with various structures. The pressure sensor is used for detecting the internal pressure of the container or the pipeline, the sensitivity is higher, the accuracy is higher, the internal pressure condition of the container can be fed back to an operator more effectively, and the danger of misoperation is avoided.

Description

Quick-opening blind plate safety interlocking device

Technical Field

The utility model relates to the technical field of blind plate structures, in particular to a quick-opening blind plate safety interlocking device.

Background

The quick-opening blind plate is used for a circular opening of a pressure pipeline or a pressure container and can be used for realizing a mechanical device for quick opening or closing, and the mechanical device can be divided into clamp type, jaw type, eye-splice type, pressure ring type and other types from the structural types. Whichever structure is composed of a blind plate seat, a blind plate cover, a hook ring or a clamp, a sealing ring, a safety interlocking device and the like. The safety interlocking device is an indispensable main component of various different types of blind plates and is mainly used for reminding an operator of whether residual pressure exists in a container or a pipeline or not so that the operator can safely open the quick-opening blind plates.

The quick-opening blind plate safety interlocking device has the following two functions according to relevant standards: 1. when the quick-opening blind plate reaches a preset closing position, the safety interlocking device is positioned, and then the equipment side can perform boosting operation; 2. when the internal pressure of the equipment is completely released, the quick-opening blind plate can be opened after the safety interlocking device is disconnected. In the safety interlocking device of most quick-opening blind plates at present, only a simple pressure relief bolt is used for releasing residual pressure in equipment, but whether residual pressure exists in a pressure container or a pipeline cannot be judged before releasing, and if the pressure relief bolt is unscrewed in a trade way under the condition that larger pressure exists in the interior, the conditions such as medium leakage or explosion can occur, so that great danger can be brought to operators. The pressure release bolt of some safety interlocking devices is internally provided with a piston stop block mechanism, when pressure exists in a container or a pipeline, the stop block can be moved upwards under the pushing of the pressure to stop an operation hole of the pressure release bolt so as to remind an operator that the pressure in the blind plate cannot unscrew the pressure release bolt at the moment, but the device has two problems, namely, a sealing ring for sealing a piston needs to be replaced frequently, or leakage is easy to occur; secondly, when the pressure in the piston is not available, the piston stop needs to reset by the spring force, but the mode is unreliable, sometimes the piston can be blocked or the spring force is reduced, and the situation that the piston cannot reset and can cause leakage can occur.

Disclosure of Invention

The safety interlocking device aims at the problem that the existing safety interlocking device of the blind plate cannot provide an operator with accurate conditions of pressure change in a container or a pipeline when in use. The utility model provides a quick-opening blind plate safety interlocking device which is simple in structure and can be controlled by adopting an electronic control mode through a function related to internal pressure.

In order to achieve the above object, the present utility model provides the following solutions:

The utility model provides a quick-opening blind plate safety interlocking device which comprises a pressure relief bolt, an electromagnet, a control box, a mounting bracket and a pressure sensor, wherein the pressure relief bolt is arranged on the mounting bracket; the mounting bracket is used for being connected with the outer wall of the quick-opening blind plate, the electromagnet and the control box are arranged on the mounting bracket, and the electromagnet is electrically connected with a control module in the control box; the pressure relief bolt with pressure sensor all install in on the outer wall of quick-opening blind plate, just pressure sensor with the automatically controlled connection of control module in the control box, be provided with the constant head tank on the outer wall of pressure relief bolt, the constant head tank be used for with the projecting shaft phase-match of electro-magnet.

Optionally, the mounting bracket comprises an adjusting screw, a mounting base plate and an adjusting nut, one end of the adjusting screw is connected with the quick-opening blind plate, the other end of the adjusting screw penetrates through the mounting base plate, and the adjusting nuts are respectively arranged on two sides of the adjusting screw, which are positioned on the mounting base plate; the electromagnet and the control box are both arranged on the mounting base plate.

Optionally, a control module and a battery are arranged in the control box, and the battery is electrically connected with the control module.

Optionally, a switch, a pressure indicator light and a non-pressure indicator light are arranged on the shell of the control box; the switch, the pressure indicator lamp and the non-pressure indicator lamp are all in electric control connection with the control module; the switch is used for controlling the power-on and power-off of the electromagnet.

Optionally, an elastic element is disposed between the extension shaft of the electromagnet and the housing of the electromagnet, and the elastic element is used for keeping the extension shaft of the electromagnet in an extended state.

Optionally, one end of the pressure relief nut is connected with the quick-opening blind plate through threads.

Optionally, a sealing ring is arranged on the end face of the root of the thread at one end of the pressure relief nut.

Compared with the prior art, the utility model has the following technical effects:

The quick-opening blind plate safety interlocking device has the advantages of simple structure, convenience in installation and wide application range, and can be used in blind plates with various structures. The pressure sensor is used for detecting the internal pressure of the container or the pipeline, compared with the traditional mechanical piston structure, the sensor is higher in sensitivity and more accurate, and can feed back the internal pressure condition of the container to an operator more effectively, so that the danger of misoperation is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a quick opening blind safety interlock device of the present utility model;

FIG. 2 is an isometric view of a quick-opening blind safety interlock of the present utility model;

FIG. 3 is a front view of a pressure relief bolt assembly in the quick opening blind safety interlock of the present utility model;

FIG. 4 is a block diagram of a mounting bracket in the quick opening blind safety interlock device of the present utility model;

FIG. 5 is a front view of the quick opening blind safety interlock device of the present utility model in operation under pressure;

FIG. 6 is a front view of the quick opening blind safety interlock of the present utility model when the quick opening blind safety interlock is opened without pressure;

FIG. 7 is an overall installation view of the quick-opening blind safety interlock device of the present utility model in a quick-opening blind;

FIG. 8 is a top view of the quick-opening blind safety interlock device of the present utility model in an overall installed position;

In the figure: 1. a pressure relief bolt; 2. an electromagnet; 3. a control box; 4. a mounting bracket; 5. a pressure sensor; 7. an O-shaped sealing ring; 8. adjusting a screw; 9. installing a backing plate; 10. and adjusting the nut.

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.

As shown in fig. 1 to 8, the present embodiment provides a quick-opening blind plate safety interlocking device, which comprises a pressure release bolt 1, an electromagnet 2, a control box 3, a mounting bracket 4 and a pressure sensor; the mounting bracket 4 is used for being connected with the outer wall of the quick-opening blind plate, the electromagnet 2 and the control box 3 are arranged on the mounting bracket 4, and the electromagnet 2 is electrically connected with a control module in the control box 3; the pressure relief bolt 1 and the pressure sensor are both arranged on the outer wall of the quick-opening blind plate, the pressure sensor is electrically connected with a control module in the control box 3, and a positioning groove is arranged on the outer wall of the pressure relief bolt 1 and is used for being matched with the extending shaft of the electromagnet 2.

In this embodiment, the mounting bracket 4 includes four adjusting screws 8, a mounting pad 9 and eight adjusting nuts 10, one end of the adjusting screw 8 is connected with the quick-opening blind plate through threads, four first through holes are formed around the mounting pad 9, the other end of the adjusting screw 8 penetrates through the first through holes, and two adjusting nuts 10 are respectively arranged on two sides of the adjusting screw 8, which are located on the mounting pad 9; the electromagnet 2 and the control box 3 are arranged on the mounting base plate 9. By changing the position of the adjusting nut 10 on the adjusting screw 8, the installation of the device can be realized to adjust the height.

An elastic piece is arranged between the extension shaft of the electromagnet 2 and the shell of the electromagnet 2, the elastic piece is used for enabling the extension shaft of the electromagnet 2 to be in an extension state, and the elastic piece can be a spiral spring. When the pressure relief bolt is not electrified, the extension shaft extends forward into the positioning groove of the pressure relief bolt 1 by the elasticity of the spiral spring. After being electrified, the stretching shaft is retracted backwards by means of magnetic force.

The lower part of the pressure relief bolt 1 is of a threaded structure, and can be connected with a threaded hole on the upper surface of the blind plate cover during installation. An O-shaped sealing ring 7 is arranged on the connecting surface of the pressure relief bolt 1 and the blind plate cover to realize the sealing function of the pressure relief bolt 1 and the blind plate cover. Before the operator opens the blind plate, after the pressureless indicator lamp of the observation control box 3 is turned on, the pressure relief bolt 1 can be unscrewed for one to two circles, and whether gas or medium flows out or not can be observed when the round hole on the outer surface of the thread leaks out, if the phenomenon does not exist, the blind plate can be safely opened when no pressure exists in the container. By using the method, the danger of false opening of the blind plate due to the fault of the indication lamp of the control box 3 can be avoided. A cylindrical section with a smaller diameter is arranged in the middle of the pressure relief bolt 1 to serve as a positioning groove, and when a container or a pipeline normally runs under pressure, the extending shaft of the electromagnet 2 can be inserted into the positioning groove, so that an operator cannot screw the pressure relief bolt 1 out of the blind plate cover. In addition, two mutually perpendicular operation holes are formed in the upper portion of the pressure relief bolt 1, and an operator can insert a rotary wrench into the operation holes according to the use direction to complete screwing-in or screwing-out operation of the pressure relief bolt 1.

A control module and a battery are arranged in the control box 3, and the battery is electrically connected with the control module. The control module may employ a PLC controller.

A switch, a pressure indicator lamp and a non-pressure indicator lamp are arranged on the shell of the control box 3; the switch, the pressure indicator lamp and the non-pressure indicator lamp are electrically connected with the control module; the switch is used for controlling the power on and power off of the electromagnet 2.

Before the blind plate is started, a switch on the upper surface of the control box 3 can be pressed firstly, at the moment, all electric elements can be activated to start working, if the pressure sensor detects that the container or the pressure pipeline element is pressureless, a pressureless signal is fed back to the PLC controller of the control box 3, at the moment, a battery is instructed to supply power to the electromagnet 2, the extension shaft of the electromagnet 2 is retracted backwards, meanwhile, a pressureless indicator lamp on the control box 3 is lightened, and at the moment, an operator can start the blind plate. If when the indicator lamp with pressure is on, the signal detected by the pressure sensor is a pressure signal, the PLC controller does not send a power supply instruction to the electromagnet 2, the extension shaft of the electromagnet 2 can be clamped in the positioning section of the pressure relief bolt 1, and an operator cannot screw out the pressure relief bolt 1. In addition, if both indicator lamps are not lighted, it is possible to cause the shortage of battery power or the occurrence of problems of other electrical components, and the maintenance is needed.

It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The principles and embodiments of the present utility model have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present utility model and its core ideas; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (7)

1. The quick-opening blind plate safety interlocking device is characterized by comprising a pressure relief bolt, an electromagnet, a control box, a mounting bracket and a pressure sensor; the mounting bracket is used for being connected with the outer wall of the quick-opening blind plate, the electromagnet and the control box are arranged on the mounting bracket, and the electromagnet is electrically connected with a control module in the control box; the pressure relief bolt with pressure sensor all install in on the outer wall of quick-opening blind plate, just pressure sensor with the automatically controlled connection of control module in the control box, be provided with the constant head tank on the outer wall of pressure relief bolt, the constant head tank be used for with the projecting shaft phase-match of electro-magnet.

2. The quick-opening blind plate safety interlocking device according to claim 1, wherein the mounting bracket comprises an adjusting screw rod, a mounting base plate and an adjusting nut, one end of the adjusting screw rod is connected with the quick-opening blind plate, the other end of the adjusting screw rod penetrates through the mounting base plate, and the adjusting screw rod is provided with the adjusting nut on two sides of the mounting base plate respectively; the electromagnet and the control box are both arranged on the mounting base plate.

3. The quick opening blind safety interlock of claim 1 wherein a control module and a battery are disposed within the control box, the battery being electrically connected to the control module.

4. The quick opening blind safety interlock device according to claim 3, wherein the switch, the pressure indicator light and the non-pressure indicator light are arranged on the outer shell of the control box; the switch, the pressure indicator lamp and the non-pressure indicator lamp are all in electric control connection with the control module; the switch is used for controlling the power-on and power-off of the electromagnet.

5. The quick opening blind safety interlock of claim 1 wherein an elastic member is disposed between the extension shaft of the electromagnet and the housing of the electromagnet, the elastic member being adapted to maintain the extension shaft of the electromagnet in an extended condition.

6. The quick opening blind safety interlock of claim 1 wherein one end of the pressure relief nut is threadably connected to the quick opening blind.

7. The quick opening blind safety interlock of claim 6 wherein a seal ring is provided on the root end face of the thread at one end of the pressure relief nut.