CN219511402U

CN219511402U - Novel Gao Wencha pull-out resistant detonator

Info

Publication number: CN219511402U
Application number: CN202320797658.4U
Authority: CN
Inventors: 赵滨
Original assignee: Xi'an Well Good Energy Technology Co ltd
Current assignee: Xi'an Well Good Energy Technology Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-08-11
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a novel Gao Wencha pull-out resistant detonator which comprises a tube shell, wherein a circuit board and a packaging powder head are arranged in the tube shell, a high-temperature control circuit for igniting the packaging powder head is arranged at the tail part of the circuit board, a limiting block for limiting and fixing the circuit board is arranged at the opening of the tube shell, and the front end of the circuit board penetrates through the limiting block to extend to the outside and is connected with a golden finger. According to the utility model, a golden finger contact type structure is adopted, a circuit board in the detonator is extended to the outside of a detonator shell, the circuit board and a packaging powder head are protected in the inside of a tube shell through a limiting block, and two sides of the circuit board exposed outside the detonator shell are made to contact with golden fingers to replace traditional detonator wires.

Description

Novel Gao Wencha pull-out resistant detonator

Technical Field

The utility model relates to the technical field of oil and gas field development, in particular to a novel Gao Wencha pull-out resistant detonator.

Background

At present, some oil and gas wells often use perforating guns which generate impulse through gunpowder explosion to open a channel with an oil reservoir, wherein each stage of the multistage perforating gun needs detonator detonation, when in site construction, a tool string and the multistage perforating gun are connected, and then two wires and a power wire of the detonator are led out through a connecting nipple side hole between the perforating guns to be connected step by step, so that the assembly work of the whole multistage perforating gun string is completed.

However, there are also some disadvantages in the prior art use:

1. and (3) wire connection: the traditional detonator needs to lead out two wires which are respectively welded on two poles of an internal circuit board of the detonator, and when in use, the two wires need to be connected with an exploder, so that quick plug connection cannot be realized;

2. the hidden trouble of the welding spot of the lead is large: the problems of welding spot detachment, insufficient solder joint, welding spot fracture and the like often occur in the using process of the detonator, so that the detonator cannot be detonated normally, and the reliability requirement of the detonator in a vibration environment cannot be met.

Disclosure of Invention

The utility model aims to provide a novel Gao Wencha pull-out resistant detonator, which aims to solve the technical problems that the connection operation of two lead wires of the detonator in the prior art is troublesome and the connection stability of the lead wires and a circuit board is poor.

In order to solve the technical problems, the utility model specifically provides the following technical scheme:

the utility model provides a novel Gao Wencha pull-out resistant detonator, which comprises a tube shell, wherein a circuit board and a packaging powder head are arranged in the tube shell;

the tail part of the circuit board is provided with a high-temperature control circuit for igniting the packaging medicine head, a limiting block for limiting and fixing the circuit board is arranged at the opening of the tube shell, and the front end of the circuit board passes through the limiting block to extend to the outside and is connected with a golden finger;

and the limiting block is movably provided with a detonator short-circuit cap for insulating and protecting the golden finger.

Furthermore, an elastic short-circuit reed used for insulating and protecting the golden finger is arranged in the detonator short-circuit cap, and an insulating shell used for insulating and protecting the elastic open-circuit reed is arranged outside the elastic short-circuit reed.

Further, the limiting block is of a two-half buckle structure and is directly assembled on the circuit board, a slotted opening or hole is formed in the circuit board, a positioning structure penetrating through the slotted opening or hole is arranged on the limiting block, and the circuit board is fixedly connected with the limiting block under the limiting action of the positioning structure and the slotted opening or hole.

Further, the cross section of the limiting block is of a rectangular structure.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, a golden finger contact type structure is adopted, a circuit board in the detonator is extended to the outside of a detonator shell, the circuit board and a packaging powder head are protected in the inside of a tube shell through a limiting block, and two sides of the circuit board exposed outside the detonator shell are made to contact with golden fingers to replace traditional detonator wires.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

Fig. 1 is a schematic structural diagram of a novel Gao Wencha pull-out resistant detonator according to the present utility model;

fig. 2 is a schematic diagram of the appearance structure of a novel Gao Wencha pull-resistant detonator according to the present utility model;

fig. 3 is a schematic diagram of a connection structure between a limiting block and a circuit board in a novel Gao Wencha pull-resistant detonator.

Reference numerals in the drawings are respectively as follows:

1 detonator short-circuit cap, 2 limiting block, 3 circuit board, 31 golden finger, 32 high temperature control circuit, 4 sealing charging head and 5 tube shell.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, a novel Gao Wencha pull-out resistant detonator comprises a tube shell 5, wherein a circuit board 3 and a sealing and charging head 4 are arranged in the tube shell 5, and a bridge wire comprises a primer powder which is packaged in the sealing and charging head 4;

the tail of the circuit board 3 is provided with a high-temperature control circuit 32 for igniting the sealed powder charging head 4, the circuit board 3 adopts the high-temperature resistant control circuit, the circuit board can be used under the working condition of 175 ℃, a limiting block 2 for limiting and fixing the circuit board 3 is arranged at the opening of the tube shell 5, the front end of the circuit board 3 passes through the limiting block 2 to extend to the outside and is connected with a golden finger 31, and the golden finger 31 is connected with an external circuit in an opposite inserting way, so that the front and the back are not needed to be distinguished;

the section of the limiting block 2 is of a rectangular structure, so that when the golden finger 31 is inserted into the jack of the external circuit pair, the detonator can be prevented from rotating under the action of the limiting block 2.

The golden finger 31 is movably provided with the detonator short-circuit cap 1 for protecting the golden finger 31, the specific installation mode between the golden finger 31 and the detonator short-circuit cap 1 can adopt a rubber plug or threaded connection and the like, the detonator short-circuit cap 1 is installed on the golden finger 31 at the front section of the high Wen Cha pull-out electronic detonator when leaving the factory, the detonator can be pulled down when being used, and the detonator is ensured to be always in a safe state before being used.

In the Gao Wencha pull-out-resistant detonator of the embodiment, the high-temperature control circuit 32 and the sealing and charging head 4 are protected inside the tube shell 5 in the limiting block 2, the golden finger 31 part of the circuit board 3 extends to the outside of the tube shell 5, direct opposite insertion conduction without wiring is realized through the golden finger 31 structure, the front and back sides of the golden finger 32 are not needed to be distinguished, the tube shell 5 is of a circular structure, the sealing and charging head is not influenced by rotation when being connected, and the detonating cord is directly propped up after being connected in place.

In another preferred embodiment, an elastic short-circuit reed for short-circuit protection of the golden finger 31 is arranged in the detonator short-circuit cap 1, and an insulating shell for protecting the elastic short-circuit reed is arranged outside the elastic short-circuit reed.

Referring to fig. 3, the limiting block 2 is a two-half type fastening structure, and is directly assembled on a circuit board, a slotted opening or hole is formed in the circuit board 3, a positioning structure penetrating through the slotted opening or hole is formed in the limiting block 2, and the circuit board 3 is fixedly connected with the limiting block 2 under the limiting action of the positioning structure and the slotted opening or hole, so that the circuit board 3 can be prevented from moving when a detonator vibrates (only one of specific connection modes of the limiting block 2 and the circuit board 3 is adopted, and the method belongs to a conventional method in the field and is not repeated herein), and meanwhile, the pipe shell 5 is fixed on the limiting block 2 through a special point riveting clamp;

the stopper 2 is fixed on the circuit board 3 to limit the leakage length of the golden finger 31 on the tube shell 5, so that the stopper 2 can limit the detonator plugging depth when the golden finger 31 conducts an external circuit during plugging.

The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.

Claims

1. The novel Gao Wencha pull-out resistant detonator comprises a tube shell (5), and is characterized in that a circuit board (3) and a packaging powder head (4) are arranged in the tube shell (5);

the tail of the circuit board (3) is provided with a high-temperature control circuit (32) for igniting the packaging medicine head (4), a limiting block (2) for limiting and fixing the circuit board (3) is arranged at the opening of the tube shell (5), and the front end of the circuit board (3) penetrates through the limiting block (2) to extend to the outside and is connected with a golden finger (31);

the golden finger (31) is movably provided with a detonator short-circuit cap (1) which is used for protecting the golden finger (31).

2. A new type Gao Wencha pull-out resistant detonator as claimed in claim 1, characterized in that an elastic short-circuit reed for short-circuit protection of said golden finger (31) is arranged in said detonator short-circuit cap (1), and an insulating housing for protecting the elastic short-circuit reed is arranged outside said elastic short-circuit reed.

3. The novel Gao Wencha pull-out resistant detonator of claim 1, wherein the limiting block (2) is of a two-half buckle structure and is directly assembled on a circuit board, a slotted opening or hole is formed in the circuit board (3), a positioning structure penetrating through the slotted opening or hole is arranged on the limiting block (2), and the circuit board (3) is fixedly connected with the limiting block (2) under the limiting action of the positioning structure and the slotted opening or hole.

4. A novel Gao Wencha pull-out resistant detonator as claimed in claim 1 wherein said stopper (2) has a rectangular cross section.