Material injection assembly for pre-embedding booster tube

Abstract

The utility model relates to mechanical structure technical field discloses a kind of injection assembly for pre-embedded booster pipe, to realize the convenience of injection operation and promote the reuse rate of injection assembly. Injection assembly includes injection screw, positioning pin, press screw and injection hopper;The upper shell of booster pipe is equipped with first lap joint portion, and the blind hole matched with positioning pin is equipped on first lap joint portion;Injection screw is equipped with injection hole, second lap joint portion matched with first lap joint portion and equipped with the through hole matched with positioning pin, the thread for being screwed with injection piece shell body and the inclined surface for being contacted with press screw, and second lap joint portion is combined to form the middle through hole of lap joint booster pipe upper portion;Press screw is annular, and the inclined surface of injection screw is matched to realize the circumferential location of booster pipe;Injection hopper is equipped with the trousers leg of extending into injection inner cavity and the sealing portion for sealing the opening of booster pipe upper portion, and the ladder for being seated into injection screw is further equipped above sealing portion to form the isolation between limiting assembly and raw material to be injected.

Description

Technical Field

[0001] This utility model relates to the field of mechanical structure technology, and in particular to a filling assembly for pre-embedded detonation tubes. Background Technology

[0002] Some military products have unique layouts for their induction systems. The initiator is located on the outer wall of the middle section of the injection unit's housing, and its wiring runs from inside the injection unit to connect to components inside the detonator tube. A wiring channel needs to be installed at the bottom of the detonator tube to connect to the wiring conduit. The wiring conduit and detonator tube are typically fastened with a wiring conduit fastening nut. This fastening nut is small, and its interface extends deep into the bottom of the detonator tube, resulting in poor operational convenience. Previously, the injection process typically involved pre-installing an injection mandrel. After injection and curing, the mandrel was removed, and the detonator tube and tail cap structure were assembled and sealed with adhesive. The fastening nut had to be removed and reassembled three times, making the operation cumbersome and the injection cycle long, which was detrimental to improving injection efficiency.

[0003] To improve injection efficiency, the detonation tube can be pre-embedded in the injection cavity of the injection component before injection. However, achieving convenient injection operation and improving the reusability of injection components has become a new problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to disclose a material injection assembly for pre-embedded detonation tubes, so as to realize the convenience of material injection operation and improve the reusability of the material injection assembly.

[0005] To achieve the above objectives, the present invention discloses a grouting assembly for pre-embedded detonating tubes, wherein the bottom of the detonating tube has a through-line, and a grouting cavity is formed between the detonating tube and the grouting component housing, including a grouting screw sleeve, a positioning pin, a pressure screw, and a grouting funnel. The upper outer shell of the detonation tube is provided with a first overlapping part that connects to the injection screw sleeve, and the first overlapping part is provided with a blind hole that cooperates with the positioning pin. The injection screw sleeve is provided with an injection hole that aligns with the injection cavity, a second overlapping part that mates with the first overlapping part, a thread that screws into the injection component housing, and an inclined surface that contacts the pressure screw. The second overlapping part forms a central through hole that sleeves the upper part of the detonation tube, and the second overlapping part is also provided with a through hole that mates with the positioning pin. The pressure screw is annular and is used to cooperate with the inclined surface of the injection screw sleeve to form a fastening relationship between the injection screw sleeve and the detonation tube and to achieve circumferential limiting of the detonation tube so that the center line of the detonation tube and the center line of the injection screw sleeve satisfy the concentric constraint. The injection funnel is provided with a leg that extends into the injection cavity through the injection hole of the injection screw sleeve and a sealing part that seals the upper opening of the detonation tube. Above the sealing part, there is also a step for sitting into the injection screw sleeve to form a physical isolation between the limiting component composed of the positioning pin, the injection screw sleeve and the pressure screw and the injected raw material.

[0006] Preferably, the number of locating pins is two, which are symmetrically distributed, and the detonation tube, the injection screw sleeve, and the injection funnel are all symmetrical structures. Further, the injection funnel is also an symmetrical structure.

[0007] Preferably, the locating pin is threaded, and the through hole of the injection sleeve is also threaded.

[0008] Optionally, the material being injected is a liquid or a solid. Preferably, the injection height of the material is less than or equal to the bottom of the first overlap. Further, the leg of the injection funnel is marked with a height limit line parallel to the bottom of the first overlap, and equally spaced graduation lines are provided below the height limit line.

[0009] This utility model has the following beneficial effects: This invention improves injection efficiency and resource utilization by pre-embedding and fixing the detonation tube before injection, making the injection assembly easy to manufacture and use, facilitating the injection operation, and enabling the injection assembly to be reused.

[0010] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional cross-sectional view of the injection assembly for pre-embedded detonation tubes disclosed in this utility model embodiment in the assembled state.

[0012] Figure 2 yes Figure 1 Three-dimensional view of the injection molding threaded sleeve.

[0013] Figure 3 yes Figure 1 Three-dimensional cross-sectional view of the inlet hopper.

[0014] Figures 4 to 7 yes Figure 1 A status diagram of the previous series of assembly process nodes. Detailed Implementation

[0015] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0016] Example 1 Reference Figures 1 to 7 This embodiment discloses a material injection assembly for pre-embedded detonating tubes. The bottom of the detonating tube 1 has a through-line, and a material injection cavity is formed between the detonating tube and the material injection housing 6. The material injection assembly of this embodiment includes a material injection sleeve 2, a positioning pin 3, a pressure screw 4, and a material injection funnel 5.

[0017] The upper outer shell of the detonation tube 1 is provided with a first overlapping part that connects to the injection screw sleeve 2, and the first overlapping part is provided with a blind hole that cooperates with the positioning pin 3.

[0018] The injection sleeve 2 is provided with an injection hole that aligns with the injection cavity, a second overlapping part that mates with the first overlapping part, a thread that screws into the injection housing 6, and an inclined surface that contacts the pressure screw 4. The second overlapping part forms a central through hole that sleeves the upper part of the detonation tube 1, and the second overlapping part is also provided with a through hole that mates with the positioning pin 3.

[0019] The pressure screw 4 is ring-shaped and is used to cooperate with the inclined surface of the injection screw sleeve 2 to form a fastening relationship between the injection screw sleeve 2 and the detonation tube 1 and to achieve circumferential limiting of the detonation tube 1 so that the center line of the detonation tube 1 and the center line of the injection screw sleeve 2 satisfy the concentric constraint.

[0020] The injection funnel 5 is provided with a leg that extends into the injection cavity through the injection hole of the injection screw sleeve 2 and a sealing part that seals the upper opening of the detonation tube 1. Above the sealing part, there is also a step for sitting into the injection screw sleeve 2 to form a physical isolation between the limiting component composed of the positioning pin 3, the injection screw sleeve 2 and the pressure screw 4 and the injected raw material.

[0021] In this embodiment, the number of positioning pins 3 is two, which are symmetrically distributed. The detonation tube 1, the injection screw sleeve 2, and the injection funnel 5 are all symmetrical structures. Furthermore, the injection funnel 5 is also an symmetrical structure.

[0022] Preferably, the locating pin 3 is threaded, and the through hole of the injection sleeve 2 is also threaded.

[0023] Optionally, the material being injected can be liquid or solid. Preferably, the injection height of the material is less than or equal to the bottom of the first overlap. Further, the leg of the injection funnel 5 is marked with a height limit line parallel to the bottom of the first overlap, and there are equally spaced graduation lines below the height limit line.

[0024] Based on the structure of this embodiment, the assembly process can be divided into four steps.

[0025] Based on the injection molding housing 6 as the basic structural component (refer to...) Figure 4 First step: install the injection sleeve 2 (refer to...) Figure 5 The second step is to assemble positioning pin 3 (refer to...). Figure 6 The third step is to assemble the pressure screw 4 (refer to...). Figure 7 Step 4: Assemble the injection funnel 5 (refer to...) Figure 1 ).

[0026] The disassembly process also consists of four steps, which can be removed in reverse order of the assembly process.

[0027] This utility model has the following beneficial effects: This invention improves injection efficiency and resource utilization by pre-embedding and fixing the detonation tube 1 before injection, making the injection assembly easy to manufacture and use, facilitating injection operation, and enabling the injection assembly to be reused.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grouting assembly for pre-embedded detonating tubes, wherein a conduit is provided at the bottom of the detonating tube, and a grouting cavity is formed between the detonating tube and the grouting component housing, characterized in that, Includes injection screw sleeve, locating pin, pressure screw and injection funnel; The upper outer shell of the detonation tube is provided with a first overlapping part that connects to the injection screw sleeve, and the first overlapping part is provided with a blind hole that cooperates with the positioning pin. The injection screw sleeve is provided with an injection hole that aligns with the injection cavity, a second overlapping part that mates with the first overlapping part, a thread that screws into the injection component housing, and an inclined surface that contacts the pressure screw. The second overlapping part forms a central through hole that sleeves the upper part of the detonation tube, and the second overlapping part is also provided with a through hole that mates with the positioning pin. The pressure screw is annular and is used to cooperate with the inclined surface of the injection screw sleeve to form a fastening relationship between the injection screw sleeve and the detonation tube and to achieve circumferential limiting of the detonation tube so that the center line of the detonation tube and the center line of the injection screw sleeve satisfy the concentric constraint. The injection funnel is provided with a leg that extends into the injection cavity through the injection hole of the injection screw sleeve and a sealing part that seals the upper opening of the detonation tube. Above the sealing part, there is also a step for sitting into the injection screw sleeve to form a physical isolation between the limiting component composed of the positioning pin, the injection screw sleeve and the pressure screw and the injected raw material.

2. The lining assembly for pre-embedded detonation tubes according to claim 1, characterized in that, The number of positioning pins is two, which are symmetrically distributed along the axis. The detonation tube, the injection screw sleeve, and the injection funnel are all symmetrical structures.

3. The lining assembly for pre-embedded detonation tubes according to claim 1 or 2, characterized in that, The locating pin is threaded, and the through hole of the injection sleeve is also threaded.

4. The lining assembly for pre-embedded detonation tubes according to claim 1 or 2, characterized in that, The injected raw material is liquid.

5. The lining assembly for pre-embedded detonation tubes according to claim 1 or 2, characterized in that, The raw material being injected is a solid.

6. The lining assembly for pre-embedded detonation tubes according to claim 1 or 2, characterized in that, The injection funnel has an axisymmetric structure.

7. The lining assembly for pre-embedded detonation tubes according to claim 1 or 2, characterized in that, The injection height of the injected material is less than or equal to the bottom of the first overlap.

8. The lining assembly for pre-embedded detonation tubes according to claim 7, characterized in that, The trouser leg of the injection funnel is marked with a height limit line parallel to the bottom of the first overlap.

9. The lining assembly for pre-embedded detonation tubes according to claim 8, characterized in that, The height limit markings are provided with equally spaced scale lines below them.

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