CN210430831U

CN210430831U - External waterproof junction box suitable for electronic detonator

Info

Publication number: CN210430831U
Application number: CN201921836161.9U
Authority: CN
Inventors: 杨海勃
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-04-28
Anticipated expiration: 2029-10-29

Abstract

The utility model belongs to the technical field of blasting junction boxes, in particular to an external waterproof junction box suitable for an electronic detonator, which comprises a junction box body and a sealing cap; two conductive external inlays are arranged on one end face of the junction box body, the parts of the external inlays, which are positioned in the junction box body, are connected with leg wires, and the parts of the external inlays, which are positioned outside the junction box body, are provided with V-shaped bayonets; and after the detonating wire is clamped in the V-shaped bayonet, the sealing cap is buckled on the external inlay, and the sealing cap is matched with the external inlay. The utility model discloses utilize external inlay to accomplish the leg wire and be connected of detonating cord, not only accessible external inlay carries out the communication to the box of binding post and detects, and is sealed through sealed cap moreover, makes the wiring position reach good water-proof effects.

Description

External waterproof junction box suitable for electronic detonator

Technical Field

The utility model belongs to the technical field of the blasting terminal box, concretely relates to waterproof type terminal box of circumscribed suitable for electronic detonator.

Background

And the leg wire of the electronic detonator is connected with the detonating wire through the junction box, so that the connection of the blasting network is completed and the detonation is carried out. The terminal box widely used at present usually adopts the internal connection type, that is, the leg wire and the detonating cord are connected through the external connection type inlay in the terminal box. Such as: both of the patents with application numbers CN201620987959.3 and CN201610634380.3 are of the inscribed type. The difference is that the patent product with application number CN201610634380.3 is provided with a detection hole which can be connected with the outside, thereby facilitating the detection and code injection of the electronic module in the production process. FIG. 1 is a block diagram of a patented product provided in CN 201620987959.3. Wherein, the mark 7 in fig. 1 is the external inlay connecting the leg wire and the blasting wire.

The waterproof function of the two patent products is realized by utilizing extrusion among the leg wire, the blasting wire and the junction box shell and a limited buffering and water storage structure in the box body; in the patent product with application number CN201610634380.3, the detection hole connected to the outside must be sealed to complete the waterproof step. With the wide application of the electronic detonator, the structural defects of poor waterproofness of the two products are increasingly remarkable and prominent, and the electronic detonator is not suitable for being used in rainy days, water seepage tunnels and dustproof operation water spraying environments.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model discloses a waterproof type terminal box of circumscribed suitable for electronic detonator utilizes the circumscribed inlay to accomplish the leg wire and is connected with the detonating cord, and not only accessible circumscribed inlay carries out the communication to the box of taking a business and detects, and is sealed through sealed cap moreover, makes the wiring position reach good water-proof effects.

The utility model provides an external waterproof junction box suitable for an electronic detonator, which comprises a junction box body and a sealing cap;

two conductive external inlays are arranged on one end face of the junction box body, the parts of the external inlays, which are positioned in the junction box body, are connected with leg wires, and the parts of the external inlays, which are positioned outside the junction box body, are provided with V-shaped bayonets;

and after the detonating wire is clamped in the V-shaped bayonet, the sealing cap is buckled on the external inlay, and the sealing cap is matched with the external inlay.

Preferably, a first groove is arranged on the circumscribed inlay;

the sealing cap comprises a cap body and two sleeves positioned on the cap body, and second grooves are formed in the inner walls of the sleeves;

when the sealing cap is buckled on the external inlay, the two sleeves are respectively matched with the two external inlays, the second groove on the sleeve is matched with the first groove on the external inlay, a cavity for containing a detonating cord is formed between the first groove and the second groove, and the detonating cord is clamped in the V-shaped bayonet after passing through the cavity.

Preferably, the leg wire comprises two wires, and the two wires are respectively connected with the two external inlays;

the detonating cord comprises two conducting wires which are respectively clamped in the first grooves of the two external inlays and then are respectively electrically connected with the two electric wires.

Preferably, the circumscribed inlay is welded or pressed with the leg wire, and then is fixed on the junction box body in an injection molding manner.

Preferably, the circumscribed inlay is provided with two first grooves, the sleeve is provided with two second grooves, and the two second grooves are respectively matched with the two first grooves.

Preferably, the external inlay includes a conductive column and a connection ring, the inner wall of the connection ring is sleeved and fixed around the conductive column, and the outer wall of the connection ring is fixed on the junction box body.

Preferably, the side of the connection ring is provided with the first groove.

Preferably, two ends of the conductive post protrude from the connection ring, and the top end of the conductive post is provided with the V-shaped bayonet.

Preferably, an insulating partition plate is arranged between the two external inlays.

Preferably, the sealing cap is made of a rubber material.

The technical scheme of the utility model, utilize the circumscribed inlay to accomplish the leg wire and be connected of detonating cord, not only accessible circumscribed inlay carries out the communication to the junction box and detects, and is sealed through sealed cap moreover, makes the wiring position reach good water-proof effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a structural diagram of a junction box in which an electronic detonator leg wire is connected with a detonating wire in the background art;

fig. 2 is a first structural diagram of an external waterproof junction box suitable for an electronic detonator in the embodiment;

fig. 3 is a second structural diagram of the external waterproof junction box suitable for the electronic detonator in the embodiment;

FIG. 4 is a structural diagram of the junction box body in the present embodiment;

fig. 5 is a structural view of the sealing cap in this embodiment.

Reference numerals:

a1-junction box body, A2-leg wire, A3-external inlay, A4-first groove, A5-insulating partition, A6-sealing cap, A7-V-shaped bayonet

A31-conductive post, A32-connecting ring

A61-cap, A62-sleeve, A63-second groove

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Example (b):

the embodiment provides an external waterproof junction box suitable for an electronic detonator, which comprises a junction box body A1 and a sealing cap A6 as shown in FIGS. 2-5;

two conductive external inlays A3 are arranged on one end face of the junction box body A1, the part, located in the junction box body A1, of the external inlay A3 is connected with a leg wire A2, and the part, located outside the junction box body A1, of the external inlay A3 is provided with a V-shaped bayonet A7;

after the detonating cord is clamped in the V-shaped bayonet A7, the sealing cap A6 is buckled on the circumscribed inlay A3, and the sealing cap A6 is matched with the circumscribed inlay A3.

The circumscribed inlay A3 is provided with a first groove A4; the sealing cap A6 comprises a cap A61 and two sleeves A62 positioned on the cap A61, wherein the inner wall of each sleeve A62 is provided with a second groove A63;

when the sealing cap a6 is buckled on the circumscribed inlay A3, the two sleeves a62 are respectively matched with the two circumscribed inlays A3, the second groove a63 on the sleeve a62 is matched with the first groove a4 on the circumscribed inlay A3, a cavity for accommodating a detonating cord is formed between the first groove a4 and the second groove a63, and the detonating cord is clamped in the V-shaped bayonet a7 after passing through the cavity. The leg wire a2 of the present embodiment includes two wires, which are respectively connected to the two external inlays A3; the detonating cord comprises two conducting wires which are respectively clamped in the V-shaped bayonets A7 of the two external inlays A3 and then are respectively electrically connected with the two electric wires.

The junction box of the embodiment protects the junction line through the sealing cap A6 when the junction box is not needed to be used, when the foot line A2 is needed to be connected with the detonating cord, the sealing cap A6 on the junction box body A1 is taken down, the two detonating cords are respectively clamped into the V-shaped bayonets A7 of the two external inlays A3, then the sealing cap A6 is covered, so that the detonating cords are clamped in the V-shaped bayonets A7, and the foot line A2 and the detonating cord are electrically connected through the external inlays A3. Because the sealing cap A6 is made of rubber and other materials, the sealing cap A6 has better sealing effect when being buckled on the junction box body A1. When the junction box needs to be checked, the two detection leads are respectively clamped into the V-shaped bayonets A7 of the two external inlays A3, and then communication detection can be carried out. Therefore, the terminal box of the embodiment utilizes the external inlay to complete the connection between the leg wire a2 and the detonating cord, and not only can perform communication detection on the terminal box through the external inlay A3, but also can achieve good waterproof effect on the wiring part through the sealing cap a 6.

The circumscribed inlay A3 of this embodiment is welded or crimped to the leg wire a2, and then fixed to the terminal box body a1 by injection molding. When the junction box of the embodiment is produced, the circumscribed inlay A3, the leg wire A2 and the junction box are integrally molded by injection, so that a good sealing and waterproof effect is achieved.

In this embodiment, the circumscribed inlay A3 is provided with two first grooves a4, the sleeve a62 is provided with two second grooves a63, and the two second grooves a63 are respectively matched with the two first grooves a 4. In this embodiment, two first grooves a4 are formed in one circumscribed inlay A3, so as to improve the electrical connection effect, when in use, a copper wire on one detonating lead is divided into two parts, and the two parts pass through the first grooves a4 and then are clamped into the two V-shaped bayonets a7, so that the leg wire a2 and the detonating lead can be successfully electrically connected.

The circumscribed inlay A3 of this embodiment includes a conductive pillar a31 and a connection ring a32, an inner wall of the connection ring a32 is sleeved and fixed on the conductive pillar a31 for a circle, and an outer wall of the connection ring a32 is fixed on the connection box body a 1. The side surface of the connecting ring A32 is provided with the first groove A4; two ends of the conductive post a31 protrude from the bonding ring a32, and the top end of the conductive post a31 is provided with the V-shaped bayonet a 7.

In the present embodiment, the V-shaped bayonet a7 at one end of the conductive post a31 is snapped into the detonating cord and the other end is connected to the leg wire, so that the detonating cord and the leg wire are electrically connected through the conductive post a 31. The detonating cord can be clamped and fixed better by the V-shaped clamping opening A7.

An insulating partition plate a5 is arranged between the two external inlays A3 of the embodiment to prevent the two external inlays A3 from being connected in a short circuit. The back of the junction box body A1 of the embodiment is provided with a reinforcing rib; the whole front surface is a plane, and the basic information of the electronic detonator can be recorded in modes of laser marking and the like.

In summary, the present embodiment has the following beneficial effects:

1. the external waterproof junction box of the embodiment directly injects the foot line A2 and the external inlay A3 into the junction box body A1 after being connected, reduces the assembling and connecting processes of the internal junction box and the foot line A2, and improves the working efficiency.

2. The internal connection type junction box without the detection hole is required to be buckled with the leg wire A2 after being assembled, the electronic detonator is required to be opened, fixed and assembled during assembly, then the electronic detonator is buckled again, the operation is complex, the external connection type waterproof junction box is directly inserted like a power plug during assembly, and the operation is simple.

3. Before the networking of blasting, the waterproof type terminal box of circumscribed of this embodiment has greatly made things convenient for the communication detection of electron detonator, especially for the internal connection formula terminal box that does not have the inspection hole, has greatly improved detection efficiency.

4. During the blasting networking, for the internal connection formula terminal box, the waterproof type terminal box of circumscribed of this embodiment is because the external terminal box that inlays A3 the connection site external and need not open the terminal box, and the card of blasting line is gone into and is connected the simplification, has greatly improved networking efficiency.

5. In the external waterproof junction box of the embodiment, the sealing cap a6 is provided with the second groove a63 matched with the first groove a4 of the external inlay A3, so that the sealing reliability is ensured, and the waterproof performance is greatly improved. Even in the water-immersed and rainy environment, the vaseline or grease is smeared on the part A4 of the first groove, and the waterproof effect can be completely achieved.

6. The external waterproof junction box of this embodiment simple structure, easily processing makes things convenient for injection mold's manufacturing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An external waterproof junction box suitable for an electronic detonator is characterized by comprising a junction box body and a sealing cap;

2. An external waterproof junction box suitable for an electronic detonator as claimed in claim 1, wherein the external inlay is provided with a first groove;

3. The external waterproof junction box suitable for the electronic detonator according to claim 2, wherein the leg wire comprises two wires, and the two wires are respectively connected with the two external inlays;

4. An external waterproof junction box suitable for an electronic detonator as claimed in claim 3, wherein the external inlay is welded or pressed with the leg wire and then fixed on the junction box body by injection molding.

5. An external waterproof junction box suitable for an electronic detonator as claimed in claim 3, wherein the external inlay is provided with two first grooves, and the sleeve is provided with two second grooves respectively matched with the two first grooves.

6. The external waterproof junction box suitable for the electronic detonator in claim 3, wherein the external inlay comprises a conductive column and a connection ring, the inner wall of the connection ring is sleeved and fixed around the conductive column, and the outer wall of the connection ring is fixed on the junction box body.

7. An externally-connected waterproof junction box suitable for an electronic detonator as claimed in claim 6 wherein the side surface of the connection ring is provided with the first groove.

8. The external waterproof junction box suitable for the electronic detonator of claim 7, wherein two ends of the conductive column protrude out of the connection ring, and the top end of the conductive column is provided with the V-shaped bayonet.

9. An external waterproof junction box suitable for an electronic detonator as claimed in claim 3 wherein an insulating spacer is provided between the two external inlays.

10. An external waterproof junction box suitable for an electronic detonator as claimed in claim 3 wherein the sealing cap is made of rubber material.