CN216448717U - Protection device for excitation needle of initiation network - Google Patents

Abstract

A protection device for an initiation needle of an initiation network comprises a water-tight tube barrel, a water-proof ring, a cable port front end plug and a fastening screw sleeve, wherein the water-tight tube barrel is a tubular long barrel, one end of the tubular long barrel is in a closed shape, the other end of the tubular long barrel is in an open shape, the water-proof ring is sleeved on the cable port front end plug, the cable port front end plug is sleeved in the water-tight tube barrel, an initiation cable and an initiation tube are led out from the cable port front end plug, and the cable port front end plug is tightly fixed through screwing threads of the fastening screw sleeve, so that the waterproof effect is ensured. The protection device is reliable in performance, good in waterproofness and strong in anti-torrent water construction environment interference capacity, and achieves the effect of protecting the excitation needle from water, the detonation cable and the detonating tube, so that the number of times of detonation failure caused by the fact that the detonation cable or the detonating tube is pulled off due to common factors such as anchor cable scratching and floating objects in water is greatly reduced.

Description

Protection device for excitation needle of initiation network

Technical Field

The utility model relates to a safety protection technology of a priming circuit, in particular to a priming needle protection device of the priming circuit.

Background

At present, the common exciter excites the detonation tube in a detonation mode, and because the requirement of excitation on water tightness is high, the adopted solution is to use a group of foam buoys with enough buoyancy to erect the excitation needle on the water surface so as to achieve the requirement of watertight isolation. However, this device is still problematic, particularly in construction areas where water is flowing rapidly. The huge pulling force generated by the detonating cable controlled by the ship group detonation and the detonating tubes of the whole blasting network pulled up underwater is borne by the foam buoy, and the more rapid the water flow is, the larger the pulling force is, so that the larger the pulling force counteracting the detonating cable and the detonating tubes is, the more the detonating cable is easy to break, and the potential safety hazard of the blasting network is caused; in inland river water, particularly in the flood season water rising period, the floating objects in the water are extremely large, and the detonating tubes led from the water bottom are likely to be pulled apart; engineering ships adopt the mode of work anchor cable tractive, and in moving the pendulum process, the foam buoy on the well water surface is swept very easily to the anchor cable makes the buoy turn on one's side, leads to arousing the needle on the buoy to intake, and then the detonation became invalid, and on the other hand can drag the detonating tube crowd, causes the detonating tube to be broken under the rivers scouring action.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the protection device for the firing line excitation needle, which has the advantages of good waterproofness, safety, stability and reliable performance. The priming needle is placed into the protection device, the priming cable and the detonating tube are led out from one end and then pulled to the engineering ship to be hung on the blasting line pile, the protection device is placed along the water flow direction, so that the priming cable and the detonating tube naturally drift along the water flow, the scouring force of the water flow on the priming cable and the detonating tube is reduced, and the possibility of being broken by the floaters in a hooking mode is reduced. The potential safety hazard of the foam buoy erecting excitation needle mode in the torrent construction area is solved.

In order to solve the technical problem, the following scheme is adopted: a kind of priming circuit fires the needle protective device, the component member includes the water tightness bobbin, water-proof ring, cable port front end plug and fastens the swivel nut, the concrete structure and connection relation of the component member are:

the watertight pipe barrel is a tubular long barrel, one end of the tubular long barrel is closed, the other end of the tubular long barrel is open, the water-proof ring is sleeved on the front end plug of the cable port, the front end plug of the cable port is sleeved in the watertight pipe barrel, the detonating cable and the detonating pipe are led out from the front end plug of the cable port, and the front end plug of the cable port is tightly fixed by screwing threads of the fastening screw sleeve, so that the waterproof effect is ensured.

And the outer side of one end of the opening of the watertight pipe barrel is provided with threads.

The water-proof ring is a circular rubber ring and is used for blocking the water-tightness pipe barrel and enhancing the water tightness.

The inner diameter of the fastening screw sleeve is matched with the outer diameter of the watertight pipe barrel, and threads arranged on the inner side of the fastening screw sleeve are meshed with threads arranged on the outer side of the watertight pipe barrel.

The utility model has the outstanding advantages that:

1. the device changes the original detonation mode of erecting the firing pin by the foam buoy, reduces unsafe factors of various detonations, and reduces configuration personnel and operation intensity of operation.

2. The detonation cable and the detonating tube drift naturally along the water flow, the water flow scouring effect is reduced, meanwhile, the net-shaped interception surface of the detonating tube group led to the water surface from the water bottom is avoided, the possibility of being dragged by floaters is reduced, and the probability of detonation failure is reduced.

3. Because the detonating cable and the detonating tube are both subjected to bottom sinking treatment, the whole set of blasting network can not be influenced completely when the working anchor cable is normally operated during detonating and ship moving, and the safety and the operability can be reliably ensured.

Drawings

FIG. 1 is a general schematic view of a detonation circuit-activated needle guard of the present invention.

FIG. 2 is a schematic view of a watertight barrel of the initiation network-activated needle guard of the present invention.

FIG. 3 is a schematic view of a waterproof ring of the detonating cord firing pin guard of the present invention.

FIG. 4 is a schematic view of a cable port front end plug of the initiation network firing pin guard of the present invention.

FIG. 5 is a schematic view of a fastening nut of the initiation network firing pin guard of the present invention.

FIG. 6 is a perspective view of a cable port front end plug of the initiation network firing pin guard of the present invention.

FIG. 7 is a schematic view of the mounting arrangement of the initiation network firing pin guard of the present invention.

Labeled as: the device comprises a watertight pipe barrel 1, a waterproof ring 2, a cable port front end plug 3, a fastening threaded sleeve 4, a detonating tube 5, an excitation needle 6 and a detonating cable 7.

Detailed Description

The technical solution of the present invention is further described below by means of the accompanying drawings and examples.

As shown in fig. 1 to 6, the priming circuit firing pin protection device of the present invention comprises a watertight barrel 1, a water stop ring 2, a cable port front end plug 3 and a fastening screw sleeve 4, and the specific structure and connection relationship are as follows:

the watertight pipe barrel 1 is a tubular long barrel, one end of the tubular long barrel is closed, the other end of the tubular long barrel is open, the water isolation ring 2 is sleeved on the cable port front end plug 3, the cable port front end plug 3 is sleeved in the watertight pipe barrel 1, and the cable port front end plug 3 is tightly fixed through screwing the fastening screw sleeve 4 to ensure that the cable port front end plug 3 and the watertight pipe barrel 1 are completely closed and the waterproof effect is ensured. The firing pin 6 is inserted into the detonating tube 5, connected with the detonating cable 7 and then enters the watertight barrel 1, and the detonating cable 7 and the detonating tube 5 are led out from the front end plug 3 of the cable port.

The outer side of the open end of the watertight pipe barrel 1 is threaded as shown in fig. 2.

The water-proof ring 2 is a round rubber ring with strong water-proof performance and is used for blocking the water-tight pipe barrel 1 and enhancing the water tightness. As shown in fig. 3.

The inner diameter of the fastening screw sleeve 4 is matched with the outer diameter of the watertight pipe barrel 1, and the threads arranged on the inner side of the fastening screw sleeve 4 are meshed with the threads arranged on the outer side of the watertight pipe barrel 1.

The water-tight pipe barrel 1, the cable port front end plug 3 and the fastening screw sleeve 4 are all made of steel materials except that the water-stop ring 2 is made of rubber materials.

The working principle and the process are as follows:

the method comprises the steps of enabling a detonating cable 7 and a detonating tube 5 to penetrate out of a cable port front end plug 3, inserting an exciting needle 6 into the detonating tube 5, then connecting the exciting needle 6 and the detonating cable 7 together, wrapping and tightly winding the detonating cable by using an adhesive tape, then placing the exciting needle 6 into a watertight barrel 1, plugging the cable port front end plug 3 to block the opening end of the watertight barrel 1, then screwing a fastening screw sleeve 4 by using threads to ensure that the watertightness of the whole device is good, hanging the other end of the detonating cable 7 on an engineering ship, placing a protection device with the exciting needle 6 in water to sink and naturally drift along with water flow, evacuating all personnel to a safe place, and finally connecting the detonating cable 7 with a detonator to prepare for detonating and then detonating. After the blasting is finished, the exciting needle 6 and the protection device are retracted into the engineering ship for next blasting. As shown in fig. 7.

Through will arousing in the needle 6 puts into confined protector, keep apart in order to reach dampproofing and waterproofing's effect with the external world, the detonating cable 7 and the detonating tube 5 of deriving in the protector are all followed rivers natural drift, and the rivers scouring force reduces, has avoided detonating tube 5 to draw the netted damming area that the surface of water formed by the bottom simultaneously, makes detonating tube 5 by the floater drag the possibility greatly reduced of breaking.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (4)

1. The utility model provides a detonating network arouses needle protector, includes water tightness bobbin, water proof circle, cable mouth front end plug and fastening swivel nut, its characterized in that: the watertight pipe barrel is a long tubular barrel, one end of the long tubular barrel is closed, the other end of the long tubular barrel is open, the water-stop ring is sleeved on the cable port front end plug, the cable port front end plug is sleeved in the watertight pipe barrel, the detonating cable and the detonating tube are led out from the cable port front end plug, and the cable port front end plug is tightly fixed through screwing threads of the fastening screw sleeve.

2. The initiation network firing pin guard of claim 1 wherein: and the outer side of one end of the opening of the watertight pipe barrel is provided with threads.

3. The initiation network firing pin guard of claim 1 wherein: the water-proof ring is a circular rubber ring.

4. The initiation network firing pin guard of claim 1 wherein: the inner diameter of the fastening screw sleeve is matched with the outer diameter of the watertight pipe barrel, and threads arranged on the inner side of the fastening screw sleeve are meshed with threads arranged on the outer side of the watertight pipe barrel.

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