CN116499324A - A waterproof wiring method for electronic detonator legs - Google Patents

Abstract

The invention provides a waterproof wiring method of an electronic detonator leg wire, which comprises the step of twisting a blasting bus and the electronic detonator leg wire together; tightly wrapping the joint by using hot melt adhesive, and sequentially winding and tightly wrapping by using an insulating adhesive tape and a waterproof adhesive tape; sleeving a heat-shrinkable tube sleeve at the joint, heating and shrinking the heat-shrinkable tube sleeve, and sequentially winding a waterproof adhesive tape and a self-adhesive tape at two ends of the heat-shrinkable tube sleeve to be tightly wrapped; the connector is sleeved with a rubber ball body, the rubber ball body is provided with a wire passing hole and an inflating hole which are opposite to each other, the wire passing hole and the inflating hole are made of rubber materials, the connector and a blasting bus pass through the two wire passing holes together, the connector is positioned in the middle of the rubber ball body, and the two wire passing holes wrap the blasting bus and the electronic detonator leg wires respectively; and filling the rubber ball with gas to tightly wrap the two wire through holes, the blasting bus and the electronic detonator leg wires. The water inlet at the joint of the leg wire of the electronic detonator can be prevented, and the wiring material has wide sources, simple wiring method and low cost.

Description

A waterproof wiring method for electronic detonator legs

technical field

The invention relates to the technical field of blasting engineering, in particular to a waterproof wiring method for electronic detonator legs.

Background technique

In the blasting project, all kinds of explosives, detonating cords and detonators are detonated by the detonation of the electronic detonator. In order to ensure that the electronic detonator can detonate various explosives smoothly, it is usually necessary to fast connect. However, the waterproof effect of the wire clip is poor. Due to the influence of rainfall and groundwater, water may enter the connection of the electronic detonator, resulting in leakage of electricity, causing the electronic detonator to fail to explode, which greatly affects the blasting effect and threatens the safety of blasting construction workers and the site. equipment security.

In order to avoid the problem of electronic detonator explosion rejection caused by water ingress, this problem can be solved by producing waterproof wire clips. For example, a patent CN111307001A discloses a waterproof device for industrial electronic detonator wire clips. A ring-shaped waterproof rubber layer is arranged in the wire clip , rubber strips, and the bus duct and foot line slot are all half-cut small-aperture rubber tubes, and the inner side of the small-aperture rubber tubes is coated with Teflon coating and other sealing measures to seal the clamps, and the sealing effect is good; in the patent CN110044222A A waterproof line card for industrial digital electronic detonators is disclosed, which effectively solves the waterproof problem of the electronic detonator line card by using three layers of protective barriers and filling waterproof materials such as silicone grease. But the waterproof structure in the above-mentioned patent is complicated, and the manufacturing cost is relatively high.

Contents of the invention

In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a waterproof wiring method of the electronic detonator foot wire, by wrapping a layer of hot melt adhesive and insulating tape at the joint of the electronic detonator foot wire and the blasting busbar and Waterproof tape, then wrap a layer of heat-shrinkable sleeve, waterproof tape and self-adhesive tape, and finally pass the wrapped joint through the rubber sphere for inflatable protection, which can prevent water from entering the electronic detonator leg joint and avoid water ingress The resulting electronic detonator rejects explosion, and the sources of wiring materials are extensive, the wiring method is simple, and the cost is low.

The technical scheme adopted to realize the above-mentioned purpose of the present invention is:

A waterproof wiring method for electronic detonator foot wires, comprising the following steps: (1) cutting and peeling off the insulating layer of the blasting busbar and the electronic detonator footwires, and scraping off the oxide layer on the blasting busbar and the electronic detonator footwires To remove the paint layer, twist the blasting busbar and the electronic detonator leg wire together;

(2) Wrap the joints of the blasting bus bar and the electronic detonator leg wire tightly with hot melt adhesive, and then wrap them tightly with insulating tape and waterproof tape in turn;

(3) Put the heat-shrinkable tube sleeve on the joint, heat-shrink the heat-shrinkable tube sleeve, after the shrinkage is completed, wrap waterproof tape and self-adhesive tape on both ends of the heat-shrinkable tube;

(4) Put a rubber sphere on the joint, and the rubber sphere is provided with two opposite wire holes on a straight line and air holes perpendicular to the two wire holes, the wire holes and the air holes are both It extends straight to the inside of the rubber sphere, and the wire hole and the air hole are made of rubber material. The joint and the blasting busbar pass through the two wire holes on the rubber sphere, and the joint is located in the middle of the rubber sphere. The holes respectively wrap the blasting busbar and the electronic detonator leg at both ends of the connector;

(5) Connect the air pump to the air hole, so that the rubber ball is filled with gas, and the air pressure in the rubber ball increases, so that the two wire holes are tightly wrapped with the blasting busbar and the electronic detonator foot, take out the air pump, and the air hole is in the Under the action of air pressure, it is closed tightly, and the wiring of the electronic detonator foot wire is completed.

The rubber sphere is covered with a layer of hard shell, the diameter of the hard shell is 1-2cm larger than the diameter of the rubber sphere, and the hard shell is also provided with holes at the corresponding positions of the wire hole and the air hole, so that the joint and the air hole respectively The pump goes through.

The hard shell is made of plastic, and the hard shell is a split structure.

The diameter of the rubber sphere is 6-8 cm, and the thickness of the rubber sphere is 0.2-0.4 mm.

The lengths of the wire passing hole and the blowing hole are both 2-3 cm.

The length of the blasting busbar cut in the step (1) is 2-3 cm, and the length of the cut-off electronic detonator foot wire is 4-6 cm.

The specific steps in the step (2) are as follows: wrap the joints of the blasting bus bar and the electronic detonator foot wire with a hot melt adhesive strip, then use a hot melt glue gun to melt the hot melt adhesive strip, and after the hot melt adhesive is cooled and solidified, the joint Wrap tightly, and then wrap three layers with insulating tape and waterproof tape in turn.

In the step (3), the heat-shrinkable sleeve is heated and shrunk by a hot air blower, and both the waterproof tape and the self-adhesive tape are wrapped in three layers.

Compared with the prior art, the technical solution provided by the present invention has the following advantages: by wrapping a layer of hot melt adhesive, insulating tape and waterproof tape at the joint of the electronic detonator foot wire and the blasting busbar, and then wrapping a layer of heat shrinkable tube Cover and waterproof tape and self-adhesive tape, and finally pass the wrapped joint through the rubber sphere for inflatable protection, which can prevent water from entering the electronic detonator's leg joint, avoiding the electronic detonator's failure to explode due to water ingress, and the wiring material The source is extensive, the wiring method is simple, and the cost is low.

Description of drawings

Fig. 1 is the charge schematic diagram of the water-containing blast hole provided in the present invention;

In the figure: 1- the joint wrapped by step (3), 2- the rubber ball, 3- the wire hole, 4- the air hole, 5- the blasting busbar, 6- the electronic detonator leg, 7- the hard shell, 8-Pump.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The waterproof wiring method of the electronic detonator leg wire provided by the present invention comprises the following steps: (1) cutting and peeling off the insulating layer of the blasting busbar and the electronic detonator leg wire, specifically, the length of the blasting busbar being cut is 2-2. 3cm, the length of the cut electronic detonator foot wire is 4-6cm; scrape off the oxide layer and peeling paint layer on the blasting bus bar and the electronic detonator foot wire, and twist the blasting bus bar and the electronic detonator foot wire together.

(2) Wrap the joints of the blasting bus bar and the electronic detonator leg wire tightly with hot melt adhesive, and then wrap them tightly with insulating tape and waterproof tape in turn; specifically, wrap the blasting bus bar and the electronic detonator leg wire with hot melt adhesive strips Then use a hot-melt glue gun to melt the hot-melt adhesive strip. After the hot-melt adhesive cools and solidifies, wrap the joint tightly, and then wrap three layers of insulating tape and waterproof tape to wrap tightly. There is no gap between the hot-melt adhesive strip and the joint. The gap prevents moisture from entering the joint.

(3) Clean and dry the joint, then put the heat-shrinkable sleeve on the joint, and heat and shrink the heat-shrinkable sleeve with a hot air blower. After the shrinkage is completed, wrap waterproof tape and self-adhesive glue on both ends of the heat-shrinkable tube in turn Tape wrap tightly; specifically, waterproof tape and self-adhesive tape are both wrapped in three layers.

(4) Put the rubber ball 2 on the joint 1 wrapped in step (3); the diameter of the rubber ball is 6-8cm, the thickness of the rubber ball is 0.2-0.4mm, and there are two rubber balls in a straight line The opposite wire hole 3 and the air hole 4 perpendicular to the two wire holes, both the wire hole and the air hole extend straight toward the inside of the rubber ball, see Figure 1, and the wire hole and the air hole are both rubber The structure of the wire hole and the air hole is similar to that of the basketball air hole, but the diameter of the wire hole is slightly larger, so that the joint and the blasting busbar 5 can pass through the two wire holes on the rubber sphere together, and the joint Located in the middle of the rubber sphere, as shown in Figure 1, at the same time, under the elastic action of the rubber, the two wire holes respectively wrap the blasting busbar and the electronic detonator foot wire 6 at both ends of the joint. The length of the stomata is 2-3 cm.

Specifically, a layer of hard casing 7 is wrapped outside the rubber sphere to protect the rubber sphere. The diameter of the hard casing is 1-2 cm larger than that of the rubber sphere. Holes are provided through which the joint and the air pump pass respectively. The hard shell is made of plastic, and the hard shell is a split structure, including two hemispherical shells, and the two hemispherical shells are connected by interference fit, so that the hard shell is conveniently wrapped outside the rubber ball .

(5) Connect the inflator 8 to the air hole, so that the rubber ball is filled with gas, the air pressure in the rubber ball increases, and the rubber at the two wire passing holes is squeezed, so that the rubber in the two wire passing holes is in contact with the blasting busbar and the electronic The legs of the detonator are wrapped tightly to prevent moisture from entering. Take out the pump, and the air hole will be closed under the action of air pressure, which is similar to the air hole of a basketball. That is to say, the wiring of the legs of the electronic detonator is completed. After the first blasting is completed, the air in the rubber ball is emptied, which can be used for next time.

Wrap a layer of hot melt adhesive, insulating tape and waterproof tape at the joint of the electronic detonator foot wire and the blasting busbar, then wrap a layer of heat shrinkable sleeve, waterproof tape and self-adhesive tape, and finally put the wrapped joint through The rubber sphere is used for inflatable protection, which can prevent water from entering the joint of the electronic detonator, avoiding the failure of the electronic detonator caused by water, and has a wide range of sources of wiring materials, simple wiring methods, and low cost.

Claims (8)

1. The waterproof wiring method of the electronic detonator leg wire is characterized by comprising the following steps of: (1) Cutting off insulating layers of the explosion bus and the electronic detonator leg wires, scraping off oxide layers and paint layers on the explosion bus and the electronic detonator leg wires, and twisting the explosion bus and the electronic detonator leg wires together;

(2) Tightly wrapping the joints of the explosion bus and the electronic detonator leg wires by using hot melt adhesive, and sequentially winding and tightly wrapping by using an insulating adhesive tape and a waterproof adhesive tape;

(3) Sleeving a heat-shrinkable tube sleeve at the joint, heating and shrinking the heat-shrinkable tube sleeve, and sequentially winding a waterproof adhesive tape and a self-adhesive tape at two ends of the heat-shrinkable tube after shrinking;

(4) The rubber ball body is sleeved on the connector, two opposite wire passing holes on a straight line and an inflating hole perpendicular to the two wire passing holes are formed in the rubber ball body, the wire passing holes and the inflating hole extend towards the inner portion of the rubber ball body in a straight line, the wire passing holes and the inflating hole are made of rubber materials, the connector and the explosion bus penetrate through the two wire passing holes on the rubber ball body together, the connector is located in the middle of the rubber ball body, and the explosion bus and the electronic detonator leg wires at two ends of the connector are respectively wrapped by the two wire passing holes;

(5) The inflator is connected with the inflator hole, so that the rubber ball body is filled with gas, the air pressure in the rubber ball body is increased, the two wire passing holes, the blasting bus and the electronic detonator leg wires are tightly wrapped, the inflator is taken out, and the inflator hole is tightly closed under the action of the air pressure, so that the wiring of the electronic detonator leg wires is completed.

2. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: the rubber ball is wrapped with a layer of hard shell, the diameter of the hard shell is 1-2 cm larger than that of the rubber ball, and holes are formed in the hard shell at positions corresponding to the wire passing holes and the inflation holes, so that the joint and the inflator penetrate through the hard shell respectively.

3. The waterproof wiring method of the electronic detonator leg wire of claim 2 wherein: the hard shell is made of plastic and is of a split structure.

4. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: the diameter of the rubber sphere is 6-8 cm, and the thickness of the rubber sphere is 0.2-0.4 mm.

5. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: the lengths of the wire through holes and the air holes are 2-3 cm.

6. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: the length of the burst bus cut in the step (1) is 2-3 cm, and the length of the foot line of the cut electronic detonator is 4-6 cm.

7. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: the specific steps in the step (2) are as follows: and wrapping the joints of the explosion bus and the foot wires of the electronic detonator by using a hot melt adhesive tape, melting the hot melt adhesive tape by using a hot melt adhesive gun, tightly wrapping the joints after the hot melt adhesive is cooled and solidified, and sequentially winding three layers of wrapping materials by using an insulating adhesive tape and a waterproof adhesive tape.

8. The waterproof wiring method of an electronic detonator leg wire of claim 1 wherein: in the step (3), the heat shrinkage pipe sleeve is heated and shrunk by the hot air blower, and the waterproof adhesive tape and the self-adhesive tape are wrapped in three layers.