Electronic detonator with blind insertion structure

Abstract

The utility model provides an electronic detonator with a blind insertion structure. The 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; 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 an electronic detonator with blind insertion structure. 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 inconvenient. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an electronic detonator with blind insertion structure, which can facilitate the electrical connection of the communication connector body and the detonator body.

[0005] The utility model provides an electronic detonator with blind insertion structure, which comprises a communication connector body, a detonator body and a detonator shell, the detonator body is installed in the detonator shell, one end of the communication connector body is inserted into the detonator shell, a first conductive part and a second conductive part in the shape of a ring are fixed on one end of the communication connector body in an interval from inside to outside, the first conductive part and the second conductive part are electrically connected to the communication wire in the communication connector body, a conductive column and a conductive ring are fixed on one end of the detonator body in an interval from inside to outside, the conductive column and the conductive ring are electrically connected to the control module in the detonator body, and the conductive column and the conductive ring are respectively inserted tightly into the first conductive part and the second conductive part and are in contact with the conductive part.

[0006] When one end of the communication connector body is inserted into the detonator shell and electrically connected to the detonator body, the utility model is not limited by the circumferential angle of the communication connector body and the detonator body, thereby facilitating the electrical connection of the communication connector body and the detonator body.

[0007] In a possible implementation, the communication connector body further comprises a first insulating support and a soft rubber plug, the first and second conductive members are fixedly inserted on the first insulating support in a spaced manner from inside to outside, the first and second conductive members are respectively electrically connected with one of the wire cores of the communication line, and the first insulating support and the communication line are integrally injection molded through the soft rubber plug; after the structure is adopted, the first and second conductive members 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 injection molded through the soft rubber plug, the first and second conductive members can be reliably fixed on one end of the communication connector body.

[0008] In a possible implementation, a middle part of the first insulating support is provided with a first insertion hole, and the first conductive member is fixedly inserted in the first insertion hole; a side of the first insulating support facing the second conductive member is provided with a first insertion slot, and an end of the second conductive member facing the first insulating support is tightly inserted in the first insertion slot; after the structure is adopted, the first and second conductive members can be reliably fixed on the first insulating support because the first conductive member is fixedly inserted in the first insertion hole and because the end of the second conductive member facing the first insulating support is tightly inserted in the first insertion slot.

[0009] 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; after the structure is adopted, 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.

[0010] In a possible implementation, at least one annular necking part is arranged at the open end of the detonator shell, and the soft rubber plug is clamped in cooperation with the necking part; after the structure is adopted, the soft rubber plug can be clamped in cooperation with the necking part (when one end of the soft rubber plug is inserted in cooperation with the detonator shell, the end of the soft rubber plug can be elastically deformed and inserted into the open end of the detonator shell, and the soft rubber plug can rebound and clamp in cooperation with the necking part after the end of the soft rubber plug is inserted into the open end of the detonator shell) after one end of the communication connector body is inserted in cooperation with the detonator shell, so that the communication connector body can be effectively prevented from being separated from the detonator shell, that is, the conductive column and the conductive ring can be effectively prevented from being separated from the first and second conductive members.

[0011] In a possible implementation, a plurality of necking parts are arranged, and the plurality of necking parts are distributed in a spaced manner along the axial direction of the detonator shell; through the arrangement of the plurality of necking parts, the clamping firmness of the soft rubber plug and the detonator shell can be further improved, so that the communication connector body can be further prevented from being separated from the detonator shell, that is, the conductive column and the conductive ring can be further prevented from being separated from the first and second conductive members.

[0012] In a possible implementation, one end of the conductive ring forms a plurality of elastic conductive pieces distributed at intervals in the circumferential direction of the conductive ring, a middle part of each elastic conductive piece is provided with a convex part in an arc shape, the convex part extends in the axial direction of the conductive ring and protrudes outward in the radial direction of the conductive ring, and each convex part abuts against and contacts the inner side wall of the second conductive piece; after the one end of the conductive ring is inserted into the second conductive piece, the convex part can rebound outward in the radial direction of the conductive ring, that is, the convex part can reliably abut against the inner wall of the second conductive piece and contact the second conductive piece, so that the electrical connection reliability of the second conductive piece and the conductive ring is improved.

[0013] In a possible implementation, the detonator main body further comprises a second insulating support and a wrapping piece; the conductive column and the conductive ring are fixed at intervals from inside to outside on the second insulating support, and the second insulating support and the control module are integrally injection molded through the wrapping piece; after the conductive column and the conductive ring are fixed at intervals from inside to outside on the second insulating support and the second insulating support and the control module are integrally injection molded through the wrapping piece, the conductive column and the conductive ring can be reliably fixed together with the control module.

[0014] In a possible implementation, a 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; one end of the conductive ring facing the second insulating support is inserted into a second insertion slot provided on the side of the second insulating support facing the conductive ring; after the conductive column is fixed in the second insertion hole and the one end of the conductive ring facing the second insulating support is inserted into the second insertion slot, the conductive column and the conductive ring can be reliably fixed on the second insulating support. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the sectional structure of the utility model;

[0017] Figure 3 It is Figure 2 It is a schematic diagram of the structure of the enlarged A part;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model after the soft rubber plug is removed from the communication connecting piece main body;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the detonator main body after the wrapping piece is removed. DETAILED DESCRIPTION

[0020] First, those skilled in the art should understand that the embodiments 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 to adapt to specific application occasions.

[0021] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can 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.

[0022] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which 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", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0023] The present application will be described in further detail below in conjunction with the drawings and specific embodiments.

[0024] Referring to Figures 1-5 As shown in the drawings, the embodiments of the present application disclose an electronic detonator with blind plug structure, comprising 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 ring-shaped first conductive part 11 and a second conductive part 12 are fixed on one end of the communication connector body 1 from inside to outside at intervals, and the first conductive part 11 and the second conductive part 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 from inside to outside at intervals, 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 part 11 and the second conductive part 12 and contact the conductive.

[0025] The communication connector body 1 further comprises a first insulating support 14 and a soft rubber plug 15, the first conductive member 11 and the second conductive member 12 are fixedly inserted on the first insulating support 14 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 14 and the communication line 13 are integrally injection molded through the soft rubber plug 15; 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 injection molded through 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.

[0026] The middle part of the first insulating support 14 is provided with a first insertion hole 141, and the first conductive member 11 is fixedly inserted in the first insertion hole 141; the side of the first insulating support 14 facing the second conductive member 12 is provided with a first insertion slot 142, and one end of the second conductive member 12 facing the first insulating support 14 is tightly inserted in the first insertion slot 142; after adopting this structure, since the first conductive member is fixedly inserted in the first insertion hole, and since one end of the second conductive member facing the first insulating support is tightly inserted in the first insertion slot, the first conductive member and the second conductive member can be reliably fixed on the first insulating support.

[0027] The two wire cores 131 of the communication line 13 are twisted with each other and integrally injection molded with the soft rubber plug 15; 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.

[0028] The opening end of the detonator shell 3 is provided with at least one annular necking portion 31, and the soft rubber plug 15 is tightly clamped with the necking portion 31; after adopting this structure, after one end of the communication connector body is inserted with the detonator shell, the soft rubber plug can be tightly clamped with the necking portion (when one end of the soft rubber plug is inserted with the detonator shell, one end of the soft rubber plug can be elastically deformed and inserted into the opening end of the detonator shell, and after one end of the soft rubber plug is inserted into the opening end of the detonator shell, the soft rubber plug can rebound and tightly clamp with the necking portion), so that the communication connector body can be effectively prevented from being separated from the detonator shell, that is, the conductive column and the conductive ring can be effectively prevented from being separated from the first conductive member and the second conductive member.

[0029] The plurality of necking portions 31 are arranged along the axial direction of the detonator shell 3. The arrangement of the plurality of necking portions can further improve the fastness of the soft rubber plug and the detonator shell, thereby further avoiding the situation that the communication connector body is separated from the detonator shell, i.e., the situation that the conductive column and the conductive ring are separated from the first and second conductive members.

[0030] The conductive ring 22 is provided with a plurality of elastic conductive pieces 221 arranged along the circumferential direction of the conductive ring 22 at one end of the conductive ring 22. Each of the elastic conductive pieces 221 is provided with an arc-shaped protruding portion 222 at the middle portion. The protruding portion 222 extends along the axial direction of the conductive ring 22 and protrudes outward along the radial direction of the conductive ring 22. Each of the protruding portions 222 abuts against and contacts the inner side wall of the second conductive member 12. After the one end of the conductive ring is inserted into the second conductive member, the protruding portion can rebound outward along the radial direction of the conductive ring, i.e., the protruding portion can reliably abut against the inner wall of the second conductive member and contact the second conductive member, thereby improving the electrical connection reliability of the second conductive member and the conductive ring.

[0031] The detonator body 2 further comprises a second insulating support member 24 and a wrapping member 25. The conductive column 21 and the conductive ring 22 are inserted and fixed on the second insulating support member 24 in a spaced manner from inside to outside. The second insulating support member 24 and the control module 23 are integrally injection molded by the wrapping member 25. After the conductive column and the conductive ring are inserted and fixed on the second insulating support member in a spaced manner from inside to outside, and after the second insulating support member and the control module are integrally injection molded by 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 member.

[0032] The second insulating support member 24 is provided with a second insertion hole 241 at the middle portion. The conductive column 21 is inserted and fixed in the second insertion hole 241. The second insulating support member 24 is provided with a second insertion slot 242 at the side facing the conductive ring 22. The one end of the conductive ring 22 facing the second insulating support member 24 is tightly inserted in the second insertion slot 242. After the conductive column is inserted and fixed in the second insertion hole, and after the one end of the conductive ring facing the second insulating support member is tightly inserted in the second insertion slot, the conductive column and the conductive ring can be reliably fixed on the second insulating support member. The second insulating support member is made of plastic material.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed in the present application can be easily thought of by those skilled in the art, and 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. An electronic detonator with blind insertion structure, comprising 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); characterized in that: The first and second conductive members (11, 12) are fixed on one end of the communication connector body (1) from inside to outside in a spaced manner, and are electrically connected with the communication line (13) in the communication connector body (1); the electrically-conductive column (21) and the electrically-conductive ring (22) are fixed on one end of the detonator body (2) from inside to outside in a spaced manner, and are electrically connected with the control module (23) in the detonator body (2); the electrically-conductive column (21) and the electrically-conductive ring (22) are respectively inserted into the first and second conductive members (11, 12) and are in contact with the electrically-conductive column (21).

2. The electronic detonator having a blind insertion structure according to claim 1, characterized in that: The communication connector body (1) further comprises a first insulating support member (14) and a soft rubber plug (15), the first and second conductive members (11, 12) are fixed on the first insulating support member (14) from inside to outside in a spaced manner, the first and second conductive members (11, 12) are respectively electrically connected with one of the wire cores (131) in the communication line (13), and the first insulating support member (14) and the communication line (13) are integrally injection molded through the soft rubber plug (15).

3. The electronic detonator with blind insertion structure according to claim 2, characterized in that: The middle part of the first insulating support member (14) is provided with a first insertion hole (141), and the first conductive member (11) is fixed in the first insertion hole (141); the side of the first insulating support member (14) facing the second conductive member (12) is provided with a first insertion slot (142), and one end of the second conductive member (12) facing the first insulating support member (14) is inserted into the first insertion slot (142).

4. The electronic detonator with blind insertion structure according to claim 2, characterized in that: The two wire cores (131) of the communication line (13) are twisted with each other and integrally injection molded with the soft rubber plug (15).

5. The electronic detonator with blind insertion structure according to claim 2, characterized in that: The opening end of the detonator shell (3) is provided with at least one annular necking portion (31), and the soft rubber plug (15) is clamped in cooperation with the necking portion (31).

6. The electronic detonator with blind insertion structure according to claim 5, characterized in that: The necking portion (31) is provided with a plurality of necking portions (31) which are distributed in a spaced manner along the axial direction of the detonator shell (3).

7. The electronic detonator with blind insertion structure according to any one of claims 1-6, characterized in that: One end of the electrically-conductive ring (22) is formed with a plurality of elastic conductive sheets (221) which are distributed in a spaced manner along the circumferential direction of the electrically-conductive ring (22), the middle part of each elastic conductive sheet (221) is provided with an arc-shaped protruding portion (222) which extends along the axial direction of the electrically-conductive ring (22) and protrudes outwardly along the radial direction of the electrically-conductive ring (22), and each protruding portion (222) is in abutment and contact with the inner side wall of the second conductive member (12).

8. The electronic detonator with blind insertion structure according to claim 7, characterized in that: The detonator body (2) further comprises a second insulating support member (24) and a wrapping member (25); the electrically-conductive column (21) and the electrically-conductive ring (22) are fixed on the second insulating support member (24) from inside to outside in a spaced manner, and the second insulating support member (24) and the control module (23) are integrally injection molded through the wrapping member (25).

9. The electronic detonator with blind insertion structure according to claim 8, characterized in that: The middle part of the second insulating support (24) is provided with a second insertion hole (241), and the conductive column (21) is fixedly inserted in the second insertion hole (241); one side of the second insulating support (24) towards the conductive ring (22) is provided with a second insertion slot (242), and one end of the conductive ring (22) towards the second insulating support (24) is tightly inserted in the second insertion slot (242).

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