Lock catch plug-in type plastic shell and unlocking jig thereof

Abstract

The utility model discloses a lock catch plug-in type plastic shell which comprises a first plastic shell and a second plastic shell which are mutually clamped and locked, a shell body of the first plastic shell is provided with a through hole, a plurality of lock catch mechanisms are arranged in the second plastic shell around the through hole, and a plurality of sheets which extend along the horizontal direction and towards the axis direction of the through hole are integrally connected in the second plastic shell. The locking mechanism comprises a plurality of sheet-shaped main bodies which are uniformly arranged around the through hole, the end part of the sheet is integrally connected with the middle part of the main body of the locking mechanism, and the main body of the locking mechanism has elasticity so as to shake around the end part of the sheet. According to the lock catch plug-in type plastic shell and the unlocking jig thereof, the plastic shell and the unlocking jig are matched, so that the plastic shell can be quickly unlocked and disassembled, the surface of the plastic shell cannot be scratched and damaged by an unlocking tool, the quality of the plastic shell is ensured, the plastic shell can be efficiently assembled and disassembled, and the unlocking efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic shell fixture technology, and in particular to a locking plug-in type plastic shell and its unlocking fixture. Background Technology

[0002] In the production of connecting cables, a large portion of the cables require plastic shells around the wire harness terminals to protect the terminals and improve the ease of connection with other electrical appliances. These plastic shells include one-piece shells and shells assembled from multiple components. For multi-component shells, locking mechanisms are typically used to secure the components together. However, during supply, for quality or sales considerations, there are sometimes requests to supply the shells with the locking mechanisms open. But the shells have already been assembled on the production line. Disassembling them requires tools to pry open the locking mechanisms, such as a flathead screwdriver. Improper use of such tools can easily damage the shells, affecting product integrity, and is also inefficient and time-consuming.

[0003] Therefore, considering the aforementioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0004] The purpose of this invention is to provide a locking plug-in type plastic shell and its unlocking fixture that allows for quick assembly and disassembly of various components without easily damaging the plastic shell.

[0005] To solve the above-mentioned technical problems, this utility model provides a latching plug-in type plastic shell and its unlocking fixture, the specific technical solution of which is as follows:

[0006] A snap-fit ​​plastic shell includes a first plastic shell and a second plastic shell that are interlocked and locked together. The first plastic shell has a through hole. The second plastic shell has multiple snap-fit ​​mechanisms arranged around the through hole. Multiple thin plates extending horizontally and along the axis of the through hole are integrally connected to the second plastic shell. Each snap-fit ​​mechanism includes multiple sheet-like main bodies evenly arranged around the through hole. The ends of the thin plates are integrally connected to the middle of the main body of the snap-fit ​​mechanism, and the main body of the snap-fit ​​mechanism is elastic to allow it to swing around the ends of the thin plates. The two ends of the main body of the snap-fit ​​mechanism are respectively fixedly connected to a snap-fit ​​part and an elastic part. The snap-fit ​​part and the elastic part can rotate in opposite directions around the intersection of the thin plate and the main body of the snap-fit ​​mechanism. When the first plastic shell and the second plastic shell are snapped together, the elastic part is located inside the first plastic shell in the normal state, and the snap-fit ​​part is located extending out of the first plastic shell from the through hole, with the outer edge size of the snap-fit ​​part being larger than the diameter of the through hole.

[0007] Preferably, the bottom surface of the first plastic shell is also provided with a plurality of positioning holes evenly distributed; the side of the elastic part near the axis of the through hole is inclined, and the diameter of the column formed by each elastic part around the axis of the through hole gradually decreases from bottom to top.

[0008] An unlocking fixture for a snap-fit ​​plastic shell includes a fixture body with a placement groove adapted to the shape of the snap-fit ​​plastic shell. The placement groove has a plurality of positioning posts adapted to the position and size of positioning holes. An unlocking mechanism is also installed in the placement groove, and the position of the unlocking mechanism is adapted to the position of a through hole on the first plastic shell.

[0009] Preferably, the unlocking mechanism includes a sliding groove formed in the placement groove and an unlocking part slidably installed in the sliding groove. The unlocking parts are a pair, and the cross-sections of the two unlocking parts are symmetrically arranged along the center of the sliding groove and can be paired to form a ring. The outer side wall of each unlocking part is inclined to match the elastic part.

[0010] Preferably, a pair of sliders are slidably installed in the sliding groove, and the two unlocking parts are fixedly connected to the two sliders respectively and slide along the sliding groove through the sliders.

[0011] Preferably, a return spring is also installed in the sliding groove, and the two ends of the return spring are respectively connected and fixed to the two sliders.

[0012] Preferably, the sliding groove is further provided with a baffle, which is located between the two sliders and has a clearance hole in the center that is adapted to the return spring.

[0013] This utility model discloses a latch-type plug-in plastic shell and its unlocking fixture, which have the following beneficial effects:

[0014] The present invention relates to a locking plug-in type plastic shell and its unlocking fixture. Through the cooperation of the plastic shell and the unlocking fixture, the plastic shell can be quickly unlocked and disassembled without causing scratches or damage to the surface of the plastic shell by the unlocking tool. While ensuring the quality of the plastic shell, it can efficiently install and disassemble the plastic shell, greatly improving the unlocking efficiency.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a snap-fit ​​type plastic shell;

[0018] Figure 2 for Figure 1A cross-sectional schematic diagram of a center-lock plug-in type plastic shell;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the unlocking fixture for the plug-in type plastic shell;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 A cross-sectional view of the unlocking mechanism in the middle.

[0022] Wherein, 1-first plastic shell; 11-positioning hole; 2-second plastic shell; 21-locking mechanism; 211-buckle part; 212-elastic part; 3-fixture body; 31-placement groove; 32-unlocking mechanism; 321-sliding groove; 322-unlocking part; 323-slider; 324-baffle; 325-reset spring; 33-positioning post. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example

[0025] Please see Figures 1 to 5 A snap-fit ​​type plastic shell includes a first plastic shell 1 and a second plastic shell 2 that are snapped together and locked. The first plastic shell has a through hole. The second plastic shell has multiple snap-fit ​​mechanisms 21 arranged around the through hole. Multiple thin plates extending horizontally and towards the axis of the through hole are integrally connected to the second plastic shell. The snap-fit ​​mechanism includes multiple sheet-shaped main bodies evenly arranged around the through hole. The ends of the thin plates are integrally connected to the middle of the main body of the snap-fit ​​mechanism, and the main body of the snap-fit ​​mechanism is elastic to allow it to swing around the ends of the thin plates. The two ends of the main body of the snap-fit ​​mechanism are respectively fixedly connected to a snap-fit ​​part 211 and an elastic part 212. The snap-fit ​​part and the elastic part can rotate in opposite directions around the intersection of the thin plate and the main body of the snap-fit ​​mechanism. When the first plastic shell and the second plastic shell are snapped together, the elastic part is located inside the first plastic shell in the normal state, and the snap-fit ​​part is located extending out of the first plastic shell from the through hole, and the outer edge size of the snap-fit ​​part is larger than the diameter of the through hole.

[0026] The bottom surface of the first plastic shell 1 is also uniformly provided with a plurality of positioning holes 11; the side of the elastic part 212 near the axis of the through hole is inclined, and the diameter of the column formed by each elastic part around the axis of the through hole gradually decreases from bottom to top.

[0027] An unlocking fixture for a snap-fit ​​plastic shell includes a fixture body 3, on which a placement groove 31 is provided. The placement groove is adapted to the shape of the snap-fit ​​plastic shell. A plurality of positioning posts 33 are provided in the placement groove. The positions and sizes of the positioning posts are adapted to the positioning holes. An unlocking mechanism 32 is also installed in the placement groove. The position of the unlocking mechanism is adapted to the position of the through hole on the first plastic shell.

[0028] The unlocking mechanism 32 includes a sliding groove 321 formed in the placement groove 31 and an unlocking part 322 slidably installed in the sliding groove. The unlocking part 322 is a pair, and the cross-section of the two unlocking parts is symmetrically arranged along the center of the sliding groove and can be paired to form a ring. The outer side wall of each unlocking part is inclined to match the elastic part 212.

[0029] A pair of sliders 323 are slidably installed in the sliding groove 321, and two unlocking parts 322 are fixedly connected to the two sliders respectively and slide along the sliding groove through the sliders.

[0030] A return spring 325 is also installed in the sliding groove, and the two ends of the return spring are respectively connected and fixed to the two sliders.

[0031] The sliding groove is also provided with a baffle 324, which is located between the two sliders and has a clearance hole in the center that is adapted to the return spring.

[0032] In this embodiment, the locking plug-in type plastic shell and its unlocking fixture are used to unlock and disassemble the plastic shell. When the plastic shell needs to be unlocked and disassembled, the plastic shell is placed in the placement groove 31 of the unlocking fixture. The position of the plastic shell is positioned by the matching of the positioning pin 33 and the positioning hole 11. At this time, the unlocking part 322 is located within the through hole. After the plastic shell is pressed down, the inclined surface of the unlocking part contacts the inclined surface of the elastic part. As the depth of the plastic shell is increased, the unlocking part is gradually pressed and slides towards the center of the sliding groove 321 until it is limited by the baffle. The unlocking part remains stationary, and the plastic shell continues to be pressed down. At this time, the elastic part is rotated by the force, which drives the buckle part 211 to move into the through hole until it is completely separated from the first plastic shell. At this time, the first plastic shell and the second plastic shell can be separated.

[0033] The beneficial effects of this utility model are: by combining the plastic shell with the unlocking fixture, the plastic shell can be quickly unlocked and disassembled without causing scratches or damage to the surface of the plastic shell by the unlocking tool. While ensuring the quality of the plastic shell, it can efficiently install and disassemble the plastic shell, greatly improving the unlocking efficiency.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A snap-fit ​​type plastic shell, characterized in that: The system includes a first plastic shell (1) and a second plastic shell (2) that are interlocked and locked together. The first plastic shell has a through hole. The second plastic shell has multiple locking mechanisms (21) around the through hole. The second plastic shell has multiple thin plates that extend horizontally and toward the axis of the through hole. The locking mechanism includes multiple sheet-like main bodies that are evenly arranged around the through hole. The ends of the thin plates are integrally connected to the middle of the main body of the locking mechanism. The main body of the locking mechanism is elastic so that it can swing around the ends of the thin plates. The two ends of the main body of the locking mechanism are respectively fixedly connected to a buckling part (211) and an elastic part (212). The buckling part and the elastic part can rotate in opposite directions around the intersection of the thin plate and the main body of the locking mechanism. When the first plastic shell and the second plastic shell are interlocked, the elastic part is located inside the first plastic shell in normal condition. The buckling part is located extending out of the first plastic shell from the through hole and the outer edge size of the buckling part is larger than the diameter of the through hole.

2. The snap-fit ​​plastic shell according to claim 1, characterized in that: The bottom surface of the first plastic shell (1) is also uniformly provided with a number of positioning holes (11); the side of the elastic part (212) near the axis of the through hole is inclined, and the diameter of the column formed by each elastic part around the axis of the through hole gradually decreases from bottom to top.

3. An unlocking fixture for a snap-fit ​​type plastic shell according to claim 2, characterized in that: The fixture includes a main body (3), on which a placement groove (31) is provided. The placement groove is adapted to the shape of the plug-in plastic shell. Several positioning posts (33) are provided in the placement groove. The positions and sizes of the positioning posts and positioning holes are adapted to each other. An unlocking mechanism (32) is also installed in the placement groove. The position of the unlocking mechanism is adapted to the position of the through hole on the first plastic shell.

4. The unlocking fixture for the latch-type plastic shell according to claim 3, characterized in that: The unlocking mechanism (32) includes a sliding groove (321) opened in the placement groove (31) and an unlocking part (322) slidably installed in the sliding groove. The unlocking part (322) is a pair and the cross-section of the two unlocking parts is symmetrically arranged along the center of the sliding groove and can be paired to form a ring. The outer side wall of each unlocking part is inclined to match the elastic part (212).

5. The unlocking fixture for the latch-type plastic shell according to claim 4, characterized in that: A pair of sliders (323) are slidably installed in the sliding groove (321), and two unlocking parts (322) are fixedly connected to the two sliders respectively and slide along the sliding groove through the sliders.

6. The unlocking fixture for the latch-type plastic shell according to claim 5, characterized in that: A return spring (325) is also installed in the sliding groove, and the two ends of the return spring are respectively connected and fixed to the two sliders.

7. The unlocking fixture for the latch-type plastic shell according to claim 6, characterized in that: The sliding groove is also provided with a baffle (324), which is located between the two sliders and has a clearance hole in the center that is adapted to the reset spring.

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