CN117268195A

CN117268195A - Safety control device for detonation and explosion isolation tests and use method thereof

Info

Publication number: CN117268195A
Application number: CN202311255803.7A
Authority: CN
Inventors: 刘宗华; 黄琼; 阮凌飞
Original assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Current assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2023-12-22

Abstract

The invention discloses a safety control device for detonation and explosion suppression tests and a use method thereof, belonging to the technical field of fuze explosion suppression. The shell is provided with a first accommodating groove corresponding to the sliding block so as to accommodate the sliding block and enable the sliding block to move in the first accommodating groove. The first accommodating groove is also communicated with a first through hole and a second through hole. The output end of the electromagnetic pin pusher extends into the first accommodating groove through the first through hole and is connected with the sliding block. The slider is provided with a plurality of grooves corresponding to the output end of the electromagnetic pin puller. A side wall surface of the first accommodating groove, which is far away from the first through hole, is provided with at least four second accommodating grooves for accommodating one metal piece respectively, and a power supply is connected between the two metal pieces to form at least two groups of circuits. The safety control device for the detonation and explosion isolation test and the use method thereof have the advantages that the whole safety of the device is high, the operation method can be realized remotely, the operation method has time sequence, and the safety is higher.

Description

Safety control device for detonation and explosion isolation tests and use method thereof

Technical Field

The invention belongs to the technical field of fuze explosion suppression, and particularly relates to a safety control device for an explosion initiation and explosion suppression test and a use method thereof.

Background

The initiating explosive device is generally provided with an explosion-proof mechanism, and the explosion-proof mechanism has the function of isolating a sensitive initiating explosive device from a next-stage initiating explosive device in an explosion-propagation sequence, so that the next-stage initiating explosive device cannot be detonated when the sensitive initiating explosive device is accidentally operated, and the safety of personnel and equipment in service treatment is ensured.

In order to verify the correctness of the fuse explosion propagation sequence design, an explosion initiation test and an explosion isolation test are required to be carried out on the explosion propagation sequence. Because the explosive quantity of the detonator in the explosion transmission sequence is large, in order to ensure the safety of operators when an explosion test and an explosion isolation test are carried out, a cable is generally used for remotely detonating an initial initiating explosive device, usually an electric detonator, during operation. Particularly, in the initiation test, in order to ensure personnel safety, the fuse is usually remotely released, and then the electric detonator is remotely supplied with power for initiation.

However, the safety of the operation is not very high, and the electric detonator is detonated as soon as the circuit is connected, and the accident of personnel injury is caused possibly because the power supply is triggered by mistake or is not closed. The current regulations on the fuse safety failure rate are: "fuze before the predetermined arming and disarming process begins: the failure rate to prevent the fuze from becoming unsecured or otherwise acting should be no greater than one part per million. It can be seen that importance is placed on the safe operation of the fuze. To improve the operational safety, the safety risks of the fuze detonation test and the explosion proof test need to be changed.

Disclosure of Invention

Aiming at one or more of the defects or improvement demands of the prior art, the invention provides a safety control device for detonation and explosion-proof tests and a use method thereof, which can reduce the risk of false detonation of an electric detonator possibly caused by connecting a detonation circuit of a detonator.

In order to achieve the above purpose, the invention provides a safety control device for detonation and explosion proof test, which comprises a shell, a sliding block, an electromagnetic pin pusher and an electromagnetic pin puller; the shell is provided with a first accommodating groove corresponding to the sliding block so as to accommodate the sliding block and enable the sliding block to move in the first accommodating groove; the first accommodating groove is also communicated with a first through hole and a second through hole;

the output end of the electromagnetic pin pusher stretches into the first accommodating groove through the first through hole to be connected with the sliding block; and the sliding block can slide in the first accommodating groove under the action of the electromagnetic pin pusher;

the sliding block is provided with a plurality of grooves corresponding to the output end of the electromagnetic pin puller, so that the output end of the electromagnetic pin puller stretches into the first accommodating groove through the second through hole and can be embedded in the grooves;

one side wall surface of the first accommodating groove, which is far away from and communicated with the first through hole, is provided with at least four second accommodating grooves for accommodating one metal piece respectively; a power supply is connected between the two metal pieces, at least two groups of circuits are formed, one group of circuits is also connected with an electric detonator, and the other group of circuits is also connected with an alarm; the sliding block is made of conductive materials, and the shell is made of non-conductive materials.

As a further improvement of the invention, the metal piece comprises a connecting part and an inclined part, wherein the inclined part is connected with the connecting part at a certain included angle, the connecting part extends along the horizontal direction, and the inclined part extends into the first accommodating groove.

As a further improvement of the present invention, the angle between the inclined portion and the horizontal direction is in the range of 20 ° to 45 °.

As a further improvement of the invention, the invention further comprises a connecting piece, wherein the connecting part is provided with a connecting hole, and the connecting piece connects the metal piece with the shell through the connecting hole.

As a further improvement of the invention, the metal piece further comprises an attaching portion perpendicular to the connecting portion, capable of attaching to the side wall of the housing.

As a further improvement of the invention, the shell is also provided with a third accommodating groove corresponding to the alarm so as to accommodate the alarm.

As a further improvement of the invention, the output end of the electromagnetic pin pusher is provided with threads, and the sliding block is correspondingly provided with threaded holes which are in threaded connection.

As a further improvement of the invention, the bottom of the sliding block is provided with a lightening hole, and the groove on the sliding block is communicated with the lightening hole to form a third through hole.

As a further development of the invention, the housing is made of an electrically non-conductive material.

The invention also provides a using method of the safety control device for the detonation and explosion-proof test, which comprises the following specific operation steps:

(1) The safety control device for the detonation and explosion isolation test is installed, the output end of the electromagnetic pin puller is inserted into a groove at one end of the sliding block, which is far away from the electromagnetic pin puller, a universal meter is used for checking whether a circuit formed by the metal parts is in an open circuit state or not, a power supply is used for supplying power to the electromagnetic pin puller after the circuit is in the open circuit state, and the electromagnetic pin puller is pulled back to release the constraint on the sliding block;

(2) After the electromagnetic pin puller is powered for 2 s-3 s, a power supply is used for powering the electromagnetic pin puller for 2 s-3 s, and the electromagnetic pin puller pushes the sliding block to move and enables the sliding block to contact with the metal piece;

(3) After the sliding block moves in place, the electromagnetic pin puller is powered off, the output end of the electromagnetic pin puller is inserted into the other groove on the sliding block, the electromagnetic pin puller locks the sliding block, and after the electromagnetic pin puller is powered off for 2-3 seconds, the electromagnetic pin puller is powered off;

(4) And supplying power to a circuit connected with the alarm, checking whether the alarm acts, if so, judging that the metal piece is connected in place, stopping supplying power to the alarm, evacuating personnel, powering on the circuit connected with the electric detonator, and checking whether the detonation or explosion test of the detonator meets the requirement.

The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.

In general, the above technical solutions conceived by the present invention have the beneficial effects compared with the prior art including:

(1) According to the safety control device for the detonation and explosion isolation test, the electromagnetic pin pusher drives the conductive sliding blocks to move, so that the conductive sliding blocks can be contacted with metal pieces, and the metal pieces are connected to form a closed circuit. The electromagnetic pin puller is matched with the groove arranged on the sliding block, so that the electromagnetic pin puller can lock or unlock the sliding block, and the reliability of the device is improved. The upper cover plays a certain role in protecting and supporting the electromagnetic pin pusher and the electromagnetic pin puller. The device has better overall safety, can be remotely operated, and does not explode the electric detonator because the power supply accidentally supplies power.

(2) The safety control device for the detonation and explosion isolation test and the use method thereof ensure that the sliding block can be contacted with the metal piece after sliding in place and can be restored to a natural state after connection is completed by further limiting the structure of the metal piece, so that the device can be used for multiple times and the applicability and accuracy of the device are improved.

(3) The use method of the safety control device for the detonation and explosion isolation test can simply and conveniently operate the device, has time sequence, can enable the sliding block to move in place only by operating according to the correct time sequence, realizes the conversion of an in-place switch, and has higher safety.

(4) The safety control device for the detonation and explosion isolation test and the use method thereof have the advantages that the whole safety of the device is high, the operation method can be realized remotely, and whether the sliding block moves in place or not can be checked remotely through the alarm of the alarm so that a circuit is formed between metal pieces. The device can be remotely controlled, the circuit is switched on and off, the operation method has time sequence, the sliding block can be moved in place only by operating according to the correct time sequence, the conversion of the in-place switch is realized, and the safety is higher. The device can ensure safe operation and does not detonate the electric detonator because of unexpected power supply of the power supply.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an overall structure of a safety control device for detonation and explosion isolation test in an initial state according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an overall structure of a safety control device for detonation and explosion proof tests in an in-place state according to an embodiment of the present invention;

FIG. 3 is a side view of a metal piece of a safety management and control device for detonation and detonation isolation testing in an embodiment of the present invention;

FIG. 4 is a front view of a metal piece of a safety control device for detonation and detonation isolation testing in an embodiment of the present invention;

FIG. 5 is a schematic view of a base of a safety control device for detonation and shock-insulator testing in an embodiment of the present invention;

FIG. 6 is a schematic diagram of an upper cover of a safety control device for detonation and shock-insulator tests in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram of a safety control device for detonation and detonation isolation tests in accordance with an embodiment of the present invention;

like reference numerals denote like technical features throughout the drawings, in particular:

1. a base; 2. an electromagnetic pin pusher; 3. an electromagnetic pin puller; 4. a slide block; 5. a metal piece; 6. an upper cover; 7. an alarm;

101. a first through hole; 102. a first accommodating groove; 1021. a second accommodating groove;

501. a connection part; 502. an inclined portion; 503. a bonding part; 5011. a connection hole;

A. an included angle between the inclined part and the horizontal direction.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

referring to fig. 1 to 7, in one aspect, a safety control device for detonation and explosion proof test is provided in a preferred embodiment of the present invention, which includes a housing, a slider 4, an electromagnetic pin pusher 2 and an electromagnetic pin puller 3. In the preferred embodiment, the housing is composed of a base 1 and an upper cover 6, and is connected by screws, as shown in fig. 5 and 6, screw holes are provided at four corners of the base 1 and the upper cover 6, so that the upper cover 6 can be connected with the base 1 by screws. The housing is made of non-conductive material.

Specifically, in the preferred embodiment, the housing is provided with a first accommodation groove 102 corresponding to the slider 4 to accommodate the slider 4 and make the slider 4 movable within the first accommodation groove 102. The first accommodating groove 102 is also communicated with a first through hole 101 and a second through hole. The output end of the electromagnetic pin pusher 2 extends into the first accommodating groove 102 through the first through hole 101 to be connected with the sliding block 4, and the sliding block 4 can slide in the first accommodating groove 102 under the action of the electromagnetic pin pusher 2. In the preferred embodiment, the output end of the electromagnetic pin pusher 2 is provided with threads, and the sliding block 4 is correspondingly provided with threaded holes which are in threaded connection. The electromagnetic pin pusher 2 is electrified through a coil to realize the attraction movement of the armature iron and the yoke iron, so that the output end pin shaft of the electromagnetic pin pusher 2 is driven to push.

Further, in the preferred embodiment, the slider 4 is provided with a plurality of grooves corresponding to the output ends of the electromagnetic pin puller 3, so that the output ends of the electromagnetic pin puller 3 extend into the first accommodating groove 102 through the second through holes and can be embedded in the grooves. It will be appreciated that as shown in fig. 1 and 2, the grooves are provided with two grooves, one for locking the slider 4 in cooperation with the electromagnetic pin puller 3 in the initial state and the other for locking the slider 4 in cooperation with the electromagnetic pin puller 3 when the slider 4 is in place, the distance between the two being set according to the actual situation, preferably 3mm to 5mm.

Wherein, the bottom of the sliding block 4 is provided with a lightening hole in the preferred embodiment, so that the weight of the sliding block 4 can be lightened, and the whole weight of the device is lightened, thereby being convenient for use. The groove on the slider 4 is now in communication with the lightening hole to form a third through hole. The sliding block 4 is made of conductive material, and can be selected from metal material, and more preferably aluminum plate material with better conductivity and lighter weight.

In detail, in the preferred embodiment, a side wall surface of the first receiving groove 102 facing away from the communicating first through hole 101 is provided with at least four second receiving grooves 1021 for receiving one metal piece 5 respectively. In the embodiment, four second accommodating grooves 1021 are provided, and a metal piece 5 is placed in each second accommodating groove 1021, so that the metal pieces 5 are mutually insulated. The two metal pieces 5 are connected with a power supply and form at least two groups of circuits, wherein one group of circuits is also connected with an electric detonator, and the other group of circuits is also connected with an alarm 7. It will be appreciated that each metal piece 5 is connected to only one wire and to a power supply to form a set of circuits, the two sets of circuits not affecting each other. The wires of each set of circuits are consistent in color and inconsistent with one another, thus facilitating differentiation. In the specific implementation, the alarm 7 can be a buzzer.

It will be appreciated that the upper cover 6 is arranged corresponding to the shape of the base 1, and the electromagnetic pin pusher 2 is partially accommodated in the base 1, and the upper cover 6 locks the rest of the upper part of the electromagnetic pin pusher 2, so as to protect the electromagnetic pin pusher 2. Similarly, the electromagnetic pin puller 3 is also a cylindrical object, and one end of the electromagnetic pin puller is connected with an output end which is also cylindrical and has a smaller diameter, so that the upper cover 6 is provided with a cylindrical through hole, namely a second through hole, corresponding to the electromagnetic pin puller 3, so that the output end of the electromagnetic pin puller 3 can be vertically placed downwards. The base 1 is provided with a first through hole 101 for receiving the electromagnetic promotional aid 2. The first through hole 101 is arranged corresponding to the electromagnetic pin pusher 2, the electromagnetic pin pusher 2 is generally cylindrical, and the output end of the top of the electromagnetic pin pusher 2 is cylindrical with a slightly smaller diameter, so that the first through hole 101 for accommodating the electromagnetic pin pusher 2 is formed by a larger cylindrical cambered surface and a smaller cylindrical cambered surface, and the electromagnetic pin pusher 2 is transversely placed and at least partially accommodated in the first through hole 101.

In more detail, in the preferred embodiment, the metal piece 5 includes a connecting portion 501 and an inclined portion 502, the inclined portion 502 is connected with the connecting portion 501 at a certain included angle, and the metal piece 5 is preferably formed by bending a copper material with a thickness of 0.5 mm-1.5 mm in an integrally formed manner. The connection portion 501 extends in the horizontal direction, and the inclined portion 502 extends into the first accommodating groove 102. It will be appreciated that the metallic elements 5 are of a conductive material and that when the slider 4 is moved into position it contacts the inclined portions 502 in the metallic elements 5 to cause the two metallic elements 5 in the same set of circuits to be closed, corresponding to the switch of the circuit being closed.

As shown in fig. 4, the included angle a between the inclined portion 502 and the horizontal direction in the preferred embodiment ranges from 20 ° to 45 °, and is particularly preferably 30 °. The inclined part 502 and the horizontal direction have an included angle, so that the sliding block 4 is easier to contact with the metal piece 5 after sliding in place, and if the sliding block 4 extrudes and deforms the inclined part 502, the metal piece 5 can be restored to the original state with good elasticity, and the repeated use is convenient.

Further, the safety control device for detonation and explosion proof test in the preferred embodiment further comprises a connecting piece, the connecting portion 501 is provided with a connecting hole 5011, and the connecting piece connects the metal piece 5 with the base 1 through the connecting hole 5011. In specific implementation, the connecting piece is a screw, and the second accommodating groove 1021 is provided with a threaded hole, so that the metal piece 5 is fixed on the base 1 by the screw. Since the second accommodation grooves 1021 are a plurality of the same interval, the plurality of metal pieces 5 connected to the second accommodation grooves are also arranged in parallel, and the plurality of metal pieces 5 are contacted with the sliding block 4 at the same time.

Preferably, in the preferred embodiment, the metal piece 5 further includes a fitting portion 503 perpendicular to the connecting portion 501, and when the connecting portion 501 is connected to the base 1, the fitting portion 503 can be fitted to a side wall of the base 1, so that the metal piece 5 can be further guaranteed to be well connected to the base 1, and the metal piece 5 is not easy to displace in a connection state.

The electromagnetic pin puller 3 realizes the attraction movement of the armature iron and the yoke iron by means of the energizing of the coil, thereby driving the pulling-back movement of the pin shaft at the output end of the electromagnetic pin puller 3. When the electromagnetic pin puller 3 is not electrified, the output end of the electromagnetic pin puller is inserted into one side of the sliding block 4 close to the second accommodating groove 1021, and the sliding block 4 is locked so as not to move randomly. When the electromagnetic pin puller 3 is electrified, the output end of the electromagnetic pin puller retracts to unlock the sliding block 4, so that the sliding block 4 can move.

More specifically, the upper cover 6 is further provided with a third accommodation groove corresponding to the alarm 7 in the preferred embodiment to accommodate the alarm 7. The base 1 and the upper cover 6 are made of non-conductive materials.

(1) And (3) installing the safety control device for the detonation and explosion isolation test, inserting the output end of the electromagnetic pin puller 3 into a groove at one end of the sliding block 4 far away from the electromagnetic pin puller 2, checking whether a circuit formed by the metal piece 5 is in a circuit breaking state by using a universal meter, ensuring that the circuit is in the circuit breaking state, and supplying power to the electromagnetic pin puller 3 by using a power supply, wherein the electromagnetic pin puller 3 is pulled back, so that the constraint on the sliding block 4 is relieved.

(2) After the electromagnetic pin puller 3 is powered for 2 s-3 s, the power supply is used for powering the electromagnetic pin puller 2 for 2 s-3 s, and the electromagnetic pin puller 2 pushes the sliding block 4 to move and enables the sliding block 4 to be in contact with the metal piece 5.

(3) After the slide block 4 moves in place, the electromagnetic pin puller 3 is powered off, the output end of the electromagnetic pin puller 3 is inserted into the other groove on the slide block 4, the electromagnetic pin puller 3 locks the slide block 4, and after the electromagnetic pin puller 3 is powered off for 2 s-3 s, the electromagnetic pin puller 2 is powered off.

(4) The power is supplied to the circuit connected with the alarm 7, whether the alarm 7 is in action is checked, if the alarm 7 is in action, the metal piece 5 can be judged to be connected in place, then the power supply to the circuit where the alarm 7 is located is stopped, the personnel is evacuated, the circuit connected with the electric detonator is electrified, and whether the detonation or explosion proof test of the fuze meets the requirement is checked.

The safety control device for the detonation and explosion isolation test and the use method thereof have the advantages that the whole safety of the device is high, the operation method can be realized remotely, and whether the sliding block moves in place or not can be checked remotely through the alarm of the alarm so that a circuit is formed between metal pieces. The device can be remotely controlled, the circuit is switched on and off, the operation method has time sequence, the sliding block can be moved in place only by operating according to the correct time sequence, the conversion of the in-place switch is realized, and the safety is higher. The device can ensure safe operation and does not detonate the electric detonator because of unexpected power supply of the power supply.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The safety control device for the detonation and explosion isolation test comprises a shell and is characterized by also comprising a sliding block, an electromagnetic pin pusher and an electromagnetic pin puller; the shell is provided with a first accommodating groove corresponding to the sliding block so as to accommodate the sliding block and enable the sliding block to move in the first accommodating groove; the first accommodating groove is also communicated with a first through hole and a second through hole;

2. The safety control device for detonation and explosion-proof tests according to claim 1, wherein the metal piece comprises a connecting portion and an inclined portion, the inclined portion is connected with the connecting portion at a certain included angle, the connecting portion extends in the horizontal direction, and the inclined portion extends into the first accommodating groove.

3. The safety control device for detonation and explosion-proof tests according to claim 2, wherein the included angle between the inclined portion and the horizontal direction is in the range of 20 ° to 45 °.

4. The safety control device for detonation and explosion-proof tests according to claim 2 or 3, further comprising a connecting piece, wherein a connecting hole is formed in the connecting portion, and the connecting piece connects the metal piece with the housing through the connecting hole.

5. A safety management device for detonation and detonation tests according to claim 2 or 3, wherein the metal piece further comprises an abutment portion perpendicular to the connection portion, capable of abutting against the side wall of the housing.

6. The safety control device for detonation and explosion proof tests according to claim 1, wherein the housing is further provided with a third accommodating groove corresponding to the alarm to accommodate the alarm.

7. The safety control device for detonation and explosion isolation tests according to claim 1 or 6, wherein the output end of the electromagnetic pin pusher is provided with threads, and the sliding block is correspondingly provided with a threaded hole which is in threaded connection with the threaded hole.

8. The safety control device for detonation and explosion-proof tests according to claim 1, wherein a lightening hole is formed in the bottom of the sliding block, and the groove in the sliding block is communicated with the lightening hole to form a third through hole.

9. The safety control device for detonation and shock-proof tests according to claim 1 or 8, wherein the housing is made of a non-conductive material.

10. The method for using the safety control device for the detonation and explosion-proof test is characterized by comprising the following specific operation steps of: