Insertion-first and locking-second micro rectangular electric connector

Abstract

The utility model relates to an insertion-first and locking-later micro rectangular electric connector, which comprises a rectangular socket and a rectangular plug which are sequentially connected and locked in a penetrating manner through a locking screw, a bolt penetrating hole on the rectangular plug is divided into a penetrating hole thread section and a penetrating hole guide section, and the inner wall of the penetrating hole guide section is provided with more than one limit ring. A guide ring is connected into the limiting ring and matched with the limiting ring in the circumferential direction to limit axial displacement, an elastic contraction seam penetrating through the guide ring in the axial direction is formed in the circumference of the guide ring in the axial direction, and an inner hole of the guide ring is connected with a screw rod section of a locking screw in a guiding and sleeving mode. The inner hole diameter of the guide ring is smaller than the thread major diameter of the thread section of the locking screw. The connector can effectively prevent the locking screw from being completely disengaged when the socket and the plug are rapidly unscrewed, is suitable for rapid separation and plugging locking of the micro-rectangular electric connector in an application occasion, does not need to take the locking screw from the outside, and improves the assembling and disassembling convenience.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to a locking micro-rectangular electric connector. Background Art

[0002] Micro rectangular electrical connectors are widely used due to their small size, light weight, and high contact density. Traditionally, they are locked with threaded structures on both sides. When plugging in, the screws on both sides need to be screwed in at the same time. If one side is screwed in tightly before the other side is screwed in, it will cause the screw to twist, the connector housing to deform, and the pinhole to be damaged, thereby damaging the connector. The current existing technology adds threads to the screw holes of the plug housing, but when the screws are loosened to separate the connectors, the screws can easily fall off directly from the threaded holes on the plug housing, which is not conducive to reuse in a micro-use environment. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a micro rectangular electrical connector which is easy to use and needs to be plugged in first and then locked.

[0004] The technical scheme adopted by the utility model is: a micro-rectangular electrical connector that is first plugged in and then locked, comprising a rectangular socket and a rectangular plug, the rectangular socket being provided with a threaded locking hole facing the rectangular plug, and the rectangular plug being provided with a bolt through-hole corresponding to the threaded locking hole, characterized in that: the side of the bolt through-hole facing the rectangular socket is provided with a through-hole threaded section for spirally rotating and connecting a locking screw threaded section, the other side of the bolt through-hole facing away from the rectangular socket is provided with a through-hole guide section for guiding and connecting a locking screw screw rod section, the inner wall of the through-rod guide section is provided with more than one circle of limiting rings, a guide ring is connected inside the limiting ring, the outer ring of the guide ring and the inner ring of the limiting ring are matched in the circumferential direction between a sink groove and a boss or between the boss and the sink groove, an elastic shrinkage seam that runs through the axial direction of the guide ring is provided on the circumference along the axial direction, and the inner hole of the guide ring guides the sleeve to connect the locking screw screw rod section; the diameter of the inner hole of the guide ring is smaller than the major diameter of the thread of the locking screw threaded section.

[0005] The limiting ring is a complete circle structure or a circle structure with multiple interval circles.

[0006] The limiting ring is a circle of boss structures protruding inwards.

[0007] The inner hole diameter of the guide ring is smaller than the minor diameter of the thread section of the locking screw.

[0008] The locking screw screw segment includes a coaxially connected guide screw segment with a diameter equal to the inner hole diameter of the guide ring and a contraction screw segment with a diameter smaller than the inner hole diameter of the guide ring, and the axial length of the contraction screw segment is smaller than the axial length of the guide ring.

[0009] The contraction screw section is connected to the locking screw thread section.

[0010] The guide screw section is connected to the locking screw thread section.

[0011] The beneficial effects of the utility model are as follows: when in use, the locking screw is passed through the bolt through-hole, the locking screw threaded section is screwed into the through-hole threaded section, the contraction screw section of the locking screw screw section is controlled to correspond to the through-hole guide section, and is elastically opened and sleeved on the outside of the contraction screw section through the elastic contraction seam, the guide ring is squeezed to be retracted and clamped into the limiting ring, and the boss and the recessed groove of the guide ring and the limiting ring are clamped together to realize the axial positioning of the guide ring, thereby realizing the outward limitation of the locking screw threaded section, which can effectively prevent the locking screw from completely falling out when the socket plug is quickly unscrewed, and the locking screw is screwed out of the threaded locking hole and then screwed into the through-hole threaded section, and is limited by the guide ring, which effectively prevents the locking screw from falling off. It is suitable for quick separation and plug-in locking in applicable occasions of micro-rectangular electrical connectors, and there is no need to take the locking screw externally, which improves the convenience of loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0014] Figure 3 This is a schematic diagram of the guide ring structure of the utility model.

[0015] In the figure: rectangular socket 1, threaded locking hole 2, rectangular plug 3, guide ring 4, locking screw 5, bolt through hole 6, through hole thread section 7, through hole guide section 8, limit ring 9, elastic shrinkage seam 10, guide ring groove 11, locking screw thread section 12, guide screw section 13, shrinkage screw section 14. DETAILED DESCRIPTION

[0016] The following is a further description with reference to the accompanying drawings.

[0017] Figure 1-3As shown: a micro rectangular electrical connector that is first plugged in and then locked comprises a rectangular socket 1, a rectangular plug 3, a guide ring 4 and a locking screw 5. The rectangular socket 1 is provided with a threaded locking hole 2 facing the rectangular plug 3, and the rectangular plug 3 is provided with a bolt through hole 6 corresponding to the threaded locking hole. The side of the bolt through hole 6 facing the rectangular socket 1 is provided with a through hole threaded section 7 for spirally connecting the locking screw 5 and the locking screw threaded section 12, and the other side of the bolt through hole 6 facing away from the rectangular socket 1 is provided with a through hole guide section 8. The inner wall of the through rod guide section 8 is provided with a circle of limiting ring 9 with a circle of boss structure convex inwardly, and the limiting ring 9 is connected to a guide ring 4. The guide ring 4 has an elastic shrinkage seam 10 that runs through the axial direction of the guide ring on the circumference, and the outer ring of the guide ring 4 is provided with a guide ring groove 11 that cooperates with the inner boss of the limiting ring, and the diameter of the inner hole of the guide ring is smaller than the major diameter of the thread of the locking screw thread section. The outer side of the locking screw 5 is coaxially connected to the guide screw segment 13 and the contraction screw segment 14 in sequence from the locking screw thread segment 12. The contraction screw segment 14 has an outer diameter smaller than the inner diameter of the circumferentially formed inner hole of the guide ring 4 and an axial length smaller than the axial length of the guide ring 4, so as to facilitate clamping.

[0018] In this embodiment, the outer diameter of the guide screw segment 13 is equal to the diameter of the circumferentially formed inner hole of the guide ring 4 .

Claims

1. A micro rectangular electrical connector that is plugged in first and then locked, comprising a rectangular socket and a rectangular plug, wherein the rectangular socket is provided with a threaded locking hole facing the rectangular plug, and the rectangular plug is provided with a bolt insertion hole corresponding to the threaded locking hole, characterized in that: The side of the bolt through-hole facing the rectangular socket is set as a through-hole threaded section for spirally connecting the locking screw threaded section, and the other side of the bolt through-hole facing away from the rectangular socket is set as a through-hole guide section for guiding the through-hole locking screw screw section. More than one circle of limiting rings are set on the inner wall of the through-rod guide section, and a guide ring is connected inside the limiting ring. The outer ring of the guide ring and the inner ring of the limiting ring are the cooperation of the countersunk groove and the boss in the circumferential direction or the boss and the countersunk groove in the circumferential direction. An elastic shrinkage seam that runs through the axial direction of the guide ring is axially provided on the circumference of the guide ring, and the inner hole of the guide ring guides the sleeve to connect the locking screw screw section; the diameter of the inner hole of the guide ring is smaller than the major diameter of the thread of the locking screw threaded section.

2. The micro rectangular electrical connector of claim 1, characterized in that: The limiting ring is a complete circle structure or a circle structure with multiple interval circles.

3. A micro rectangular electrical connector that is plugged in first and then locked according to claim 1 or 2, characterized in that: The limiting ring is a circle of boss structures protruding inwards.

4. The micro rectangular electrical connector of claim 1, characterized in that: The inner hole diameter of the guide ring is smaller than the minor diameter of the thread section of the locking screw.

5. The micro rectangular electrical connector of claim 1, characterized in that: The locking screw screw segment includes a coaxially connected guide screw segment with a diameter equal to the inner hole diameter of the guide ring and a contraction screw segment with a diameter smaller than the inner hole diameter of the guide ring, and the axial length of the contraction screw segment is smaller than the axial length of the guide ring.

6. The micro rectangular electrical connector of claim 5, characterized in that: The contraction screw section is connected to the locking screw thread section.

7. The micro rectangular electrical connector of claim 5, characterized in that: The guide screw section is connected to the locking screw thread section.

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