Blind insertion type electronic detonator

Abstract

The utility model provides a blind insertion type electronic detonator. The blind insertion type electronic detonator comprises a communication connecting piece main body, a detonator main body and a detonator shell, the detonator main body is mounted in the detonator shell, and one end of the communication connecting piece main body is inserted into the detonator shell; an annular first conductive piece and an annular second conductive piece are fixed at one end of the communication connecting piece main body at intervals from inside to outside, and the first conductive piece and the second conductive piece are electrically connected with a communication line in the communication connecting piece main body; a conductive column and a conductive ring are fixed at one end of the detonator main body at intervals from inside to outside, and the conductive column and the conductive ring are electrically connected with a control module in the detonator main body; the conductive column and the conductive ring are respectively and tightly inserted into the first conductive piece and the second conductive piece and are contacted for conduction; the communication connecting piece body further comprises a soft rubber plug, at least one annular necking part is arranged at the opening end of the detonator shell, and the soft rubber plug and the necking part are clamped in a matched mode. According to the utility model, convenience can be brought to the plug-in connection of the communication connecting piece main body and the detonator main body.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic detonator technical field, specifically, relate to a blind insertion type electronic detonator. BACKGROUND

[0002] Electronic detonator, also called digital electronic detonator, digital detonator or industrial digital electronic detonator, is an electric detonator using electronic control module to control the detonation process, which has detonator delay time control and detonation energy control functions.

[0003] At present, the Chinese patent publication number CN218155789U discloses a digital electronic detonator, which comprises a detonator, a detonator housing, a detonator plug and an initiation PCB board, the detonator plug is contained in the detonator housing and forms a sealed cavity, the initiation PCB board is packaged in the detonator plug, one end of the initiation PCB board extends into the sealed cavity, and the sealed cavity contains initiation explosive; a foot wire, the foot wire comprises a foot wire housing and a foot wire head, the foot wire head is contained in the foot wire housing and extends towards the front end of the foot wire housing, one end of the foot wire head is connected to the detonator through a connecting bracket; a communication wire, the communication wire is connected to the other end of the foot wire head and extends towards the rear end of the foot wire housing; when the digital electronic detonator is used, the foot wire and the detonator are limited by the positions of the plug male and the plug female, and the two need to be connected at a specific angle, that is, there is a disadvantage that the connection of the detonator and the foot wire is not convenient. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a blind insertion type electronic detonator which can bring convenience to the plug-in connection of the communication connecting piece main body and the detonator main body.

[0005] The utility model provides a blind insertion type electronic detonator, which comprises a communication connecting piece main body, a detonator main body and a detonator shell, the detonator main body is installed in the detonator shell, one end of the communication connecting piece main body is inserted into the detonator shell, a first conductive piece and a second conductive piece in the shape of a ring are fixed on one end of the communication connecting piece main body in a spaced manner from inside to outside, the first conductive piece and the second conductive piece are electrically connected to the communication wire in the communication connecting piece main body, a conductive column and a conductive ring are fixed on one end of the detonator main body in a spaced manner from inside to outside, the conductive column and the conductive ring are electrically connected to the control module in the detonator main body, the conductive column and the conductive ring are respectively inserted tightly into the first conductive piece and the second conductive piece and are in contact with the conductive, the communication connecting piece main body further comprises a soft plug, at least one annular necking portion is arranged at the open end of the detonator shell, and the soft plug is clamped tightly in cooperation with the necking portion.

[0006] The utility model discloses a structure is inserted to the one end of communication connecting piece main part in detonator shell and is electrically connected with detonator main part, and the circumferential angle of communication connecting piece main part and detonator main part is not limited, thereby facilitating the insertion of communication connecting piece main part and detonator main part.

[0007] In a possible implementation, the necking portion is provided with a plurality of necking portions, and the plurality of necking portions are distributed along the axial direction of the detonator shell. After the necking portion is arranged at the opening end of the detonator shell, the soft rubber plug can be clamped with the necking portion after the one end of the communication connecting piece main part is inserted into the detonator shell (when the one end of the soft rubber plug is inserted into the opening end of the detonator shell, the one end of the soft rubber plug can be elastically deformed and inserted into the opening end of the detonator shell, and the soft rubber plug can rebound and be clamped with the necking portion after the one end of the soft rubber plug is inserted into the opening end of the detonator shell), thereby effectively preventing the communication connecting piece main part from being separated from the detonator shell, that is, effectively preventing the electrically conductive column and the electrically conductive ring from being separated from the first and second electrically conductive members. In addition, the arrangement of the plurality of necking portions can further improve the clamping firmness of the soft rubber plug and the detonator shell, thereby further preventing the communication connecting piece main part from being separated from the detonator shell, that is, further preventing the electrically conductive column and the electrically conductive ring from being separated from the first and second electrically conductive members.

[0008] In a possible implementation, the outer wall of the one end of the soft rubber plug towards the detonator shell is provided with an annular chamfer surface, and the annular chamfer surface is used for guiding the inner wall of the opening end of the detonator shell to facilitate the insertion of the end of the soft rubber plug into the opening end of the detonator shell. After the annular chamfer surface is arranged on the outer wall of the one end of the soft rubber plug towards the detonator shell, the annular chamfer surface on the outer wall of the one end of the soft rubber plug can guide the inner wall of the opening end of the detonator shell to facilitate the insertion of the end of the soft rubber plug into the opening end of the detonator shell when the one end of the communication connecting piece main part is inserted into the detonator shell, that is, facilitating the insertion of the one end of the communication connecting piece main part into the detonator shell.

[0009] In a possible implementation, the side wall of the second electrically conductive member is provided with an annular protruding rib, the annular protruding rib protrudes inwardly along the radial direction of the second electrically conductive member, and the annular protruding rib is in close contact with the outer side wall of the electrically conductive ring and conducts electricity. After the electrically conductive ring is inserted into the second electrically conductive member, the electrically conductive ring can be clamped with the annular protruding rib under the action of the annular protruding rib, that is, the electrically conductive ring can be reliably clamped with the second electrically conductive member and conduct electricity.

[0010] In a possible implementation, the conductive ring is provided with a plurality of open slots on the side wall of the end of the conductive ring facing the second conductive member in the circumferential direction, and the open slots extend in the axial direction of the conductive ring. When the end of the conductive ring facing the second conductive member is inserted into the second conductive member, the conductive ring at the open slots can be elastically deformed when abutting against the annular protrusions on the side wall of the second conductive member, so as to facilitate the insertion of the end of the conductive ring facing the second conductive member into the second conductive member, and the conductive ring at the open slots has a springback force, so as to ensure that the conductive ring reliably abuts against and contacts the second conductive member.

[0011] In a possible implementation, the communication connecting member body further comprises a first insulating support member, and the first conductive member and the second conductive member are fixedly inserted on the first insulating support member in a spaced manner from inside to outside, the first conductive member and the second conductive member are respectively electrically connected to one of the wire cores of the communication line, and the first insulating support member and the communication line are integrally injection molded by the soft rubber plug. Through the adoption of this structure, the first conductive member and the second conductive member can be reliably insulated and isolated under the action of the first insulating support member, and the first conductive member and the second conductive member can be reliably fixed on one end of the communication connecting member body after the first insulating support member and the communication line are integrally injection molded by the soft rubber plug.

[0012] In a possible implementation, the middle part of the first insulating support member is provided with a first insertion hole, and the first conductive member is fixedly inserted in the first insertion hole, and the side of the first insulating support member facing the second conductive member is provided with a first insertion slot, and the end of the second conductive member facing the first insulating support member is tightly inserted in the first insertion slot. Through the adoption of this structure, the first conductive member and the second conductive member can be reliably fixed on the first insulating support member because the first conductive member is fixedly inserted in the first insertion hole and the end of the second conductive member facing the first insulating support member is tightly inserted in the first insertion slot.

[0013] In a possible implementation, the two wire cores of the communication line are twisted with each other and integrally injection molded with the soft rubber plug. Through the adoption of this structure, the combination strength of the two wire cores of the communication line and the soft rubber plug can be improved after the soft rubber plug is injection molded, that is, the connection strength of the two wire cores and the soft rubber plug can be improved.

[0014] In a possible implementation, the detonator body further comprises a second insulating support and a wrapping piece; the conductive column and the conductive ring are fixed on the second insulating support in a spaced manner from inside to outside, and the second insulating support and the control module are integrally injection molded through the wrapping piece; after the structure is adopted, the conductive column and the conductive ring can be reliably fixed with the control module together due to the conductive column and the conductive ring being fixed on the second insulating support in a spaced manner from inside to outside, and the second insulating support and the control module being integrally injection molded through the wrapping piece.

[0015] In a possible implementation, the middle part of the second insulating support is provided with a second insertion hole, and the conductive column is fixed in the second insertion hole; the side of the second insulating support facing the conductive ring is provided with a second insertion slot, and one end of the conductive ring facing the second insulating support is tightly inserted in the second insertion slot; after the structure is adopted, the conductive column and the conductive ring can be reliably fixed on the second insulating support due to the conductive column being fixed in the second insertion hole and the one end of the conductive ring facing the second insulating support being tightly inserted in the second insertion slot. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sectional structure of the utility model;

[0018] Figure 3 It is Figure 2 It is a schematic diagram of the structure after the enlargement of the middle A;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the communication connecting piece body after the soft rubber plug is removed;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the detonator body after the wrapping piece is removed. DETAILED DESCRIPTION

[0021] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0022] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connected", "connected to", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0023] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0024] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025] Referring to Figures 1-5 As shown in the drawings, the embodiments of the present application disclose a blind insertion type electronic detonator, which comprises a communication connector body 1, a detonator body 2 and a detonator shell 3; the detonator body 2 is installed in the detonator shell 3, and one end of the communication connector body 1 is inserted into the detonator shell 3; a first conductive member 11 and a second conductive member 12 in the form of a ring are fixed on one end of the communication connector body 1 in a spaced manner from inside to outside, and the first conductive member 11 and the second conductive member 12 are electrically connected with a communication line 13 in the communication connector body 1; a conductive column 21 and a conductive ring 22 are fixed on one end of the detonator body 2 in a spaced manner from inside to outside, and the conductive column 21 and the conductive ring 22 are electrically connected with a control module 23 in the detonator body 2; the conductive column 21 and the conductive ring 22 are respectively inserted tightly into the first conductive member 11 and the second conductive member 12 and are in contact with the conductive; the communication connector body 1 further comprises a soft rubber plug 14, and the opening end of the detonator shell 3 is provided with at least one ring-shaped necked portion 31, and the soft rubber plug 14 is clamped and fastened in cooperation with the necked portion 31.

[0026] The plurality of necking portions 31 are distributed along the axial direction of the detonator shell 3; after the necking portions are arranged at the open end of the detonator shell, and after the one end of the communication connector body is inserted into the detonator shell, the soft rubber plug can be clamped with the necking portions (when the one end of the soft rubber plug is inserted into the open end of the detonator shell, the one end of the soft rubber plug can be elastically deformed and inserted into the open end of the detonator shell, and after the one end of the soft rubber plug is inserted into the open end of the detonator shell, the soft rubber plug can rebound and be clamped with the necking portions), thereby effectively avoiding the situation that the communication connector body is separated from the detonator shell, that is, effectively avoiding the situation that the conductive column and the conductive ring are separated from the first and second conductive members; in addition, through the arrangement of the plurality of necking portions, the clamping firmness of the soft rubber plug and the detonator shell can be further improved, thereby further avoiding the situation that the communication connector body is separated from the detonator shell, that is, further avoiding the situation that the conductive column and the conductive ring are separated from the first and second conductive members.

[0027] The soft rubber plug 14 is provided with an annular chamfer surface 141 on the outer wall of the one end facing the detonator shell 3, and the annular chamfer surface 141 is used for guiding the inner wall of the open end of the detonator shell 3 to facilitate the insertion of the end of the soft rubber plug 14 into the open end of the detonator shell 3; after the annular chamfer surface is arranged on the outer wall of the one end of the soft rubber plug facing the detonator shell, when the one end of the communication connector body is inserted into the detonator shell, the annular chamfer surface on the outer wall of the one end of the soft rubber plug can guide the inner wall of the open end of the detonator shell to facilitate the insertion of the end of the soft rubber plug into the open end of the detonator shell, that is, to facilitate the insertion of the one end of the communication connector body into the detonator shell.

[0028] The side wall of the second conductive member 12 is provided with an annular protruding rib 121, and the annular protruding rib 121 protrudes inward along the radial direction of the second conductive member 12; through the adoption of this structure, after the conductive ring is inserted into the second conductive member, the conductive ring can be clamped with the annular protruding rib under the action of the annular protruding rib, that is, the conductive ring can be reliably clamped with the second conductive member and in conductive contact.

[0029] The conductive ring 22 is provided with a plurality of open grooves 221 on the side wall of the one end facing the second conductive member 12, and the open grooves 221 extend along the axial direction of the conductive ring 22; through the arrangement of the plurality of open grooves on the side wall of the one end of the conductive ring facing the second conductive member, when the one end of the conductive ring facing the second conductive member is inserted into the second conductive member, the conductive ring at the open groove can be elastically deformed when it is in close contact with the annular protruding rib on the side wall of the second conductive member, so as to facilitate the insertion of the one end of the conductive ring facing the second conductive member into the second conductive member, and the conductive ring at the open groove has a rebounding force to ensure that the conductive ring is in reliable abutment and conductive contact with the second conductive member.

[0030] The communication connector body 1 further comprises a first insulating support 15; the first conductive member 11 and the second conductive member 12 are fixed in the first insulating support 15 in a spaced manner from inside to outside, the first conductive member 11 and the second conductive member 12 are respectively electrically connected with one of the wire cores 131 in the communication line 13, the first insulating support 15 and the communication line 13 are integrally injected with the soft rubber plug 14; after adopting this structure, the first conductive member and the second conductive member can be reliably insulated and isolated under the action of the first insulating support, and after the first insulating support and the communication line are integrally injected with the soft rubber plug, the first conductive member and the second conductive member can be reliably fixed on one end of the communication connector body; the first insulating support is made of plastic material.

[0031] The middle part of the first insulating support 15 is provided with a first insertion hole 151, and the first conductive member 11 is fixed in the first insertion hole 151; the side of the first insulating support 15 facing the second conductive member 12 is provided with a first insertion slot 152, and the end of the second conductive member 12 facing the first insulating support 15 is tightly inserted into the first insertion slot 152; after adopting this structure, since the first conductive member is fixed in the first insertion hole, and since the end of the second conductive member facing the first insulating support is tightly inserted into the first insertion slot, the first conductive member and the second conductive member can be reliably fixed on the first insulating support.

[0032] The two wire cores 131 of the communication line 13 are twisted with each other and integrally injected with the soft rubber plug 14; after adopting this structure, after the soft rubber plug is injection molded, the bonding strength of the two wire cores of the communication line and the soft rubber plug can be improved, that is, the connection strength of the two wire cores and the soft rubber plug can be improved.

[0033] The detonator body 2 further comprises a second insulating support 24 and a wrapping member 25; the conductive column 21 and the conductive ring 22 are fixed in the second insulating support 24 in a spaced manner from inside to outside, and the second insulating support 24 and the control module 23 are integrally injected with the wrapping member 25; after adopting this structure, since the conductive column and the conductive ring are fixed in the second insulating support in a spaced manner from inside to outside, and after the second insulating support and the control module are integrally injected with the wrapping member, the conductive column and the conductive ring can be reliably fixed with the control module; the wrapping member is an injection molded part.

[0034] The middle part of the second insulating support 24 is provided with a second insertion hole 241, and the conductive column 21 is inserted and fixed in the second insertion hole 241; the side of the second insulating support 24 facing the conductive ring 22 is provided with a second insertion slot 242, and the end of the conductive ring 22 facing the second insulating support 24 is inserted and fixed in the second insertion slot 242; after adopting the structure, since the conductive column is inserted and fixed in the second insertion hole, and since the end of the conductive ring facing the second insulating support is inserted and fixed in the second insertion slot, the conductive column and the conductive ring can be reliably fixed on the second insulating support; the second insulating support is made of plastic material.

[0035] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A blind-insertion electronic detonator, comprising a communication connector body (1), a detonator body (2), and a detonator shell (3); wherein the detonator body (2) is installed in the detonator shell (3), and one end of the communication connector body (1) is inserted into the detonator shell (3); characterized in that: One end of the communication connector body (1) is fixed with a first conductive element (11) and a second conductive element (12) in a ring shape, arranged from the inside out. The first conductive element (11) and the second conductive element (12) are electrically connected to the communication line (13) in the communication connector body (1). One end of the detonator body (2) is fixed with a conductive post (21) and a conductive ring (22) arranged from the inside out. The conductive post (21) and the conductive ring (22) are electrically connected to the control module (23) in the detonator body (2). The conductive post (21) and the conductive ring (22) are respectively inserted into the first conductive element (11) and the second conductive element (12) and make contact with conductivity. The communication connector body (1) also includes a soft rubber plug (14). At least one ring-shaped constriction part (31) is provided at the open end of the detonator shell (3). The soft rubber plug (14) and the constriction part (31) are fitted together and clamped.

2. The blind-insertion electronic detonator according to claim 1, characterized in that: The constricted portion (31) is provided in multiple ways, and the multiple constricted portions (31) are distributed at intervals along the axial direction of the detonator shell (3).

3. The blind-insertion electronic detonator according to claim 1 or 2, characterized in that: The soft rubber plug (14) has an annular chamfered surface (141) on the outer wall facing the detonator shell (3). The annular chamfered surface (141) is used to cooperate with the inner wall of the opening end of the detonator shell (3) for guidance so that the end of the soft rubber plug (14) can be inserted into the opening end of the detonator shell (3).

4. The blind-insertion electronic detonator according to claim 1, characterized in that: The second conductive element (12) has an annular rib (121) on its side wall. The annular rib (121) protrudes inward along the radial direction of the second conductive element (12). The annular rib (121) is in close contact with the outer side wall of the conductive ring (22) and conducts electricity.

5. The blind-insertion electronic detonator according to claim 4, characterized in that: The conductive ring (22) has a plurality of opening slots (221) circumferentially arranged on the side wall facing the second conductive element (12), and the opening slots (221) extend along the axial direction of the conductive ring (22).

6. The blind-insertion electronic detonator according to claim 1, characterized in that: The main body (1) of the communication connector also includes a first insulating support (15); the first conductive element (11) and the second conductive element (12) are inserted and fixed on the first insulating support (15) from the inside out, and the first conductive element (11) and the second conductive element (12) are electrically connected to one of the wire cores (131) in the communication line (13), and the first insulating support (15) and the communication line (13) are injection molded together by the soft rubber plug (14).

7. The blind-insertion electronic detonator according to claim 6, characterized in that: The first insulating support (15) has a first insertion hole (151) in the middle, and the first conductive member (11) is inserted and fixed in the first insertion hole (151); the first insulating support (15) has a first slot (152) on the side facing the second conductive member (12), and the end of the second conductive member (12) facing the first insulating support (15) is inserted into the first slot (152).

8. The blind-insertion electronic detonator according to claim 6, characterized in that: The two cores (131) of the communication line (13) are twisted together and injection molded into a soft rubber plug (14).

9. The blind-insertion electronic detonator according to claim 1, characterized in that: The detonator body (2) also includes a second insulating support (24) and a wrapping (25); the conductive post (21) and the conductive ring (22) are inserted and fixed on the second insulating support (24) from the inside to the outside in an intermittent manner, and the second insulating support (24) and the control module (23) are injection molded together by the wrapping (25).

10. The blind-insertion electronic detonator according to claim 9, characterized in that: The second insulating support (24) has a second insertion hole (241) in the middle, and the conductive post (21) is inserted and fixed in the second insertion hole (241); the second insulating support (24) has a second slot (242) on the side facing the conductive ring (22), and the end of the conductive ring (22) facing the second insulating support (24) is inserted into the second slot (242).

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