Miniature primer shell capable of preventing detonator from falling off
The problem of insertion and clamping of detonator tubes and clamping sleeves in the micro-detonator housing is solved by designing a retractable detonator insertion tube and clamping sleeve in the micro-detonator housing, achieving wider applicability and higher safety and efficiency in use.
Patent Information
- Application Number
- CN202420717865.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The existing micro-detonator housing is difficult to adapt to detonators of different diameters, resulting in inconvenient insertion or insecure clamping, which affects the safety and efficiency of use.
A micro-detonation housing for anti-detonating tube is designed, using a retractable detonator insertion tube and clamping sleeve. The bottom of the insertion tube has a tapered shape and multiple grooves. The inner wall of the clamping sleeve is equipped with convex ribs to adapt to detonators of different diameters, and the rigid clamping of the detonator is achieved through the cooperation of the clamping plate and the convex ribs.
This design increases the scope of application of detonator insertion, can effectively fix the detonator, and improves the safety and efficiency of use.
Smart Images
Figure CN222598668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro-detonators, and more specifically to a shell of a micro-detonator for preventing detonator from falling off. Background Art
[0002] Currently, micro-detonators are rarely used in the market, and the diameters of digital electronic detonators on the market are not uniform. When the detonator is inserted into the detonator shell, there is a situation where the detonator diameter is slightly larger or smaller than the detonator hole diameter. If it is slightly larger, it cannot be inserted, and if it is slightly smaller, it cannot be clamped, which brings difficulties to the universal applicability of the detonator shell.
[0003] Therefore, providing a micro-detonator shell for preventing detonator from falling off with a wide range of applications is an urgent problem to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the utility model provides a micro-explosive device shell for preventing detonator from falling off, which can be applicable to the use of most detonators and can play a good role in fixing the detonators, thereby improving the safety and efficiency of use.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A shell of a micro-explosive device for preventing detonator caps from falling off comprises a charge shell and a detonator insertion tube connected as one body, and also comprises a clamping sleeve, the bottom of the detonator insertion tube is conical, the bottom of the detonator insertion tube has a plurality of expansion joints extending in a vertical direction, and the conical surface of the bottom of the detonator insertion tube has a plurality of circles of grooves distributed from top to bottom; the clamping sleeve is sleeved on the detonator insertion tube, and the inner wall of the clamping sleeve is provided with two circles of convex ribs distributed up and down and adapted to the grooves.
[0007] By adopting the above scheme, the beneficial effects of the utility model are:
[0008] An expansion joint is provided at the bottom of the detonator insertion tube, that is, the insertion opening can expand and contract, thereby increasing the size range of the insertion opening and being suitable for inserting detonators with diameters slightly larger or smaller than the insertion opening, thereby increasing the scope of application. Furthermore, by pulling down the clamping sleeve, the detonator can be clamped at the bottom of the detonator insertion tube, thereby improving the use efficiency and safety and reliability.
[0009] Furthermore, the detonator insertion tube includes a straight tube and four clamping plates, the top end of the straight tube is connected to the charge shell as a whole, and the four clamping plates are respectively connected to the bottom end of the straight tube as a whole and are evenly distributed along its circumference to form four expansion joints; the conical surface on the outside of each clamping plate has four grooves distributed from top to bottom; the clamping sleeve is sleeved on the straight tube and slidably connected to it, or the clamping sleeve is sleeved on the four clamping plates, and the two convex ribs are embedded in any two adjacent grooves up and down.
[0010] Furthermore, the lengths of the clamping plate and the clamping sleeve are both 10 mm.
[0011] Furthermore, the groove and the convex rib are both hemispherical.
[0012] Furthermore, the arc radii of the groove and the convex rib are both 0.2 mm.
[0013] Furthermore, the charge shell and the detonator insertion tube are both made of semi-rigid plastic. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0015] Figure 1 The accompanying drawing is a structural schematic diagram of a shell of a miniature detonator for preventing detonator from falling off provided by the utility model;
[0016] Figure 2 The accompanying drawing is a schematic diagram of the three-dimensional structure of the charge shell and the detonator insertion tube provided by the utility model;
[0017] Figure 3 The accompanying drawing is a schematic structural diagram of the clamping sleeve provided by the utility model. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figure 1-3As shown, an embodiment of the utility model discloses a shell of a micro-explosive device for preventing detonator from falling off, comprising a charge shell 1, a detonator insertion tube 2 and a clamping sleeve 3. The charge shell 1 and the detonator insertion tube 2 are connected as a whole. The charge shell 1 and the detonator insertion tube 2 are both made of semi-rigid plastic material and have a certain degree of elasticity. The bottom of the detonator insertion tube 2 is conical, and the bottom of the detonator insertion tube 2 has a plurality of expansion joints 4 extending in the vertical direction. The conical surface of the bottom of the detonator insertion tube 2 has a plurality of circles of grooves 221 distributed from top to bottom; the clamping sleeve 3 is sleeved on the detonator insertion tube 2, and the inner wall of the clamping sleeve 3 is provided with two circles of convex ribs 31 distributed up and down and adapted to the grooves 221. In this embodiment, the grooves 221 and the convex ribs 31 are both hemispherical. The utility model provides an expansion joint 4 at the bottom of the detonator insertion tube 2, that is, the insertion opening can expand and contract, thereby increasing the size range of the insertion opening and being suitable for inserting detonators with diameters slightly larger or smaller than the insertion opening, thereby increasing the applicable range. Furthermore, by pulling down the clamping sleeve 3, the detonator can be clamped at the bottom of the detonator insertion tube 2, thereby improving the use efficiency and safety and reliability.
[0020] Specifically, the detonator insertion tube 2 includes a straight tube 21 and four clamping plates 22. The top end of the straight tube 21 is connected to the charge shell 1 as a whole. The four clamping plates 22 are respectively connected to the bottom end of the straight tube 21 as a whole and are evenly distributed along its circumference to form four expansion joints 4. In this embodiment, the bottom end surface of the clamping plate 22 is chamfered to facilitate the insertion of the detonator; each clamping plate 22 has four grooves 221 distributed from top to bottom on the conical surface on the outside; the clamping sleeve 3 is sleeved on the straight tube 21 and slidably connected thereto, or the clamping sleeve 3 is sleeved on the four clamping plates 22, and two convex ribs 31 are embedded in any two adjacent grooves 221 above and below. In this embodiment, the lengths of the clamping plates 22 and the clamping sleeves 3 are both 10 mm, the grooves 221 and the convex ribs 31 are both hemispherical, and the arc radii of the grooves 221 and the convex ribs 31 are both 0.2 mm.
[0021] The working principle of this utility model:
[0022] When the clamping sleeve 3 is not clamping, the clamping sleeve 3 is sleeved on the straight tube 21, and the detonator can freely penetrate into the detonator insertion tube 2; when the detonator is clamped, the clamping sleeve 3 is pushed downward, and during this process, it gradually reaches the position of the clamping plate 22, the clamping plate 22 is tightened inwardly, and the convex rib 31 is embedded in the groove 221, and the four clamping plates 22 clamp the detonator to achieve detonator locking.
[0023] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A shell of a micro-explosive device for preventing detonator from falling off, comprising a charge shell and a detonator insertion tube connected as one body, characterized in that: It also includes a clamping sleeve, the bottom of the detonator insertion tube is conical, the bottom of the detonator insertion tube has a plurality of expansion joints extending in the vertical direction, and the conical surface of the bottom of the detonator insertion tube has a plurality of circles of grooves distributed from top to bottom; the clamping sleeve is sleeved on the detonator insertion tube, and the inner wall of the clamping sleeve is provided with two circles of convex ribs distributed up and down and adapted to the grooves.
2. A shell of a micro-explosive device for preventing detonator from falling off according to claim 1, characterized in that: The detonator insertion tube includes a straight tube and four clamping plates, the top end of the straight tube is connected to the charge shell as a whole, and the four clamping plates are respectively connected to the bottom end of the straight tube as a whole and are evenly distributed along its circumference to form four expansion joints; the conical surface on the outside of each clamping plate has four grooves distributed from top to bottom; the clamping sleeve is sleeved on the straight tube and slidably connected to it, or the clamping sleeve is sleeved on the four clamping plates, and the two convex ribs are embedded in any two adjacent grooves up and down.
3. A shell of a micro-explosive device for preventing detonator from falling off according to claim 2, characterized in that: The lengths of the clamping plate and the clamping sleeve are both 10 mm.
4. The shell of a micro-explosive device for preventing detonator from falling off according to claim 2, characterized in that: The groove and the convex rib are both hemispherical.
5. The shell of a micro-explosive device for preventing detonator from falling off according to claim 4, characterized in that: The arc radii of the groove and the convex rib are both 0.2 mm.
6. The shell of a micro-explosive device for preventing detonator from falling off according to claim 1, characterized in that: The charge shell and the detonator insertion tube are both made of semi-rigid plastic material.