CN213026614U - Electric connector contact pin mounting structure with closed type positioning sleeve - Google Patents
Electric connector contact pin mounting structure with closed type positioning sleeve Download PDFInfo
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- CN213026614U CN213026614U CN202021820797.7U CN202021820797U CN213026614U CN 213026614 U CN213026614 U CN 213026614U CN 202021820797 U CN202021820797 U CN 202021820797U CN 213026614 U CN213026614 U CN 213026614U
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- ring platform
- positioning sleeve
- head end
- pin
- mounting structure
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Abstract
An electric connector pin installation structure with a closed positioning sleeve relates to the technical field of electric connectors and comprises an insulating installation seat, wherein the insulating installation seat is provided with a pin hole penetrating through an end face, a head end ring platform and a middle ring platform are respectively arranged at the head end and the middle part of the pin hole in an inward protruding mode, and a positioning sleeve used for fixing a pin and preventing the pin from moving axially is coaxially arranged between the head end ring platform and the middle ring platform; the positioning sleeve is an annular structure with two spliced and sealed end faces made of plate materials in a rolling way, and the two spliced end faces of the plate materials are respectively provided with a groove and a bulge which can be mutually buckled; the insulating mounting seat mainly comprises a limiting plate and a mounting plate which are correspondingly connected, and the head end ring platform and the middle ring platform are respectively integrated with the limiting plate and the mounting plate; this contact pin mounting structure can effectively avoid the production of mount pad contact pin downthehole wall crackle.
Description
Technical Field
The utility model belongs to the technical field of the electric connector technique and specifically relates to an electric connector contact pin mounting structure with closed position sleeve is related to.
Background
The positioning piece of the pin connector is a common part used for limiting the axial movement of a pin in the connector, and is structurally as disclosed in figure 6 of the patent specification of Chinese invention with the publication number of CN109975931A by the applicant, the positioning piece is a sleeve with a C-shaped end face and is generally installed in a pin hole and tightly attached to the inner wall of the pin hole, after the pin passes through the tail end of the positioning piece, a positioning claw on the positioning piece naturally shrinks and butts against a shaft shoulder clamping column of the pin to prevent the pin from being drawn back, so that the axial positioning pin is realized, and the positioning piece is made into a C shape and is also made into a C shape so as to be capable of elastically shrinking and reducing diameter, so that the positioning piece can be conveniently inserted into and installed in the pin hole and then naturally unfolded to;
however, such positioning members present problems and drawbacks when applied to circular electrical connectors; as is known, since the mounting seat of the pin of the electrical connector needs to be made of a non-metallic insulating material, and the rigidity and hardness of the mounting seat are inferior to those of the pin and the positioning member, in the process of inserting the pin, as shown in fig. 6 to 8 of the present application, the stress F1 of the pin can be transmitted to the tail end of the positioning member through the positioning pawl, and since the positioning pawl and the pin have a certain included angle in the axial direction, the tail end of the positioning member can also receive an outward-stretching radial force while receiving the axial force, especially the radial forces F6 and F7 at the C-shaped notch of the positioning member are the largest, and the reaction is exerted on the inner wall of the pin hole, which can cause the pin hole of the mounting seat to have wall thickness cracks, thereby causing the.
Disclosure of Invention
In order to overcome not enough among the background art, the utility model discloses an electric connector contact pin mounting structure with closed position sleeve can effectively avoid the production of mount pad contact pin downthehole wall crackle.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an electric connector pin installation structure with a closed positioning sleeve comprises an insulating installation seat, wherein the insulating installation seat is provided with a pin hole penetrating through an end face, a head end ring platform and a middle ring platform are respectively arranged at the head end and the middle part of the pin hole in an inward protruding mode, and a positioning sleeve used for fixing a pin and preventing the pin from moving axially is coaxially arranged between the head end ring platform and the middle ring platform; the positioning sleeve is an annular structure with two spliced and closed end faces formed by rolling plates, and grooves and bulges which can be mutually buckled are respectively arranged on the two spliced end faces of the plates; the insulating mounting seat mainly comprises a limiting plate and a mounting plate which are correspondingly connected, and the head end ring platform and the middle ring platform are respectively integrated with the limiting plate and the mounting plate.
Further, the groove is a dovetail groove.
Furthermore, a plurality of grooves are uniformly formed in the corresponding end faces of the butt joint along the axial direction of the positioning sleeve.
Further, the number of the grooves is two.
Furthermore, the outer wall of the positioning sleeve is in clearance fit with the inner wall of the pin hole between the head end ring platform and the middle ring platform.
Furthermore, the end wall surface of the positioning sleeve, which is far away from the middle ring platform, is inwards bent for one circle to form a plurality of clamping jaws, and the outer ends of the clamping jaws and the head end ring platform are respectively abutted against and positioned on two end surfaces of the shaft shoulder clamping column in the middle of the contact pin.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses an electric connector contact pin mounting structure with closed position sleeve, under the restriction of overall installation structural design and insulating material, roll up the position sleeve into closed loop configuration to offset the radial force that receives through recess and the arch of mutual lock, thereby make the power that contact pin downthehole wall received reduce or disappear, reduced the probability that insulating mount pad contact pin hole appears the wall thickness crackle, also avoided the position sleeve atress to warp and lead to the unstable phenomenon of position sleeve axial placement, improved the life of whole electric connector; meanwhile, the insulating mounting seat is formed by connecting a limiting plate and a mounting plate, and the positioning sleeve is mounted in the pin hole of the mounting plate before the limiting plate is connected.
Drawings
Fig. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of the positioning sleeve;
FIG. 3 is a schematic view of the expanded configuration of FIG. 2;
FIG. 4 is a schematic cross-sectional view of FIG. 2;
FIG. 5 is a schematic left side view of the structure of FIG. 2;
FIG. 6 is a force analysis diagram of the pin;
FIG. 7 is an axial force analysis schematic of the locating sleeve;
fig. 8 is a radial force analysis diagram of a conventional spacer.
In the figure: 1. an insulating mounting seat; 101. a pin inserting hole; 102. a middle ring platform; 103. a head end loop station; 104. Mounting a plate; 105. a limiting plate; 2. a positioning sleeve; 201. a protrusion; 202. a groove; 203. a claw; 3. And (6) inserting pins.
Detailed Description
The present invention can be explained in detail by the following embodiments, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention, and the present invention is not limited to the following embodiments; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and for the convenience of describing the present invention, it is not intended to indicate or imply that the device or element referred to must have a particular orientation:
the electric connector pin mounting structure with the closed positioning sleeve described with reference to fig. 1-5 comprises an insulating mounting base 1, the insulating mounting base 1 is provided with a pin hole 101 penetrating through the end face, the head end and the middle part of the pin hole 101 are respectively provided with a head end ring platform 103 and a middle ring platform 102 in an inward protruding manner, a positioning sleeve 2 for fixing a pin 3 to prevent axial movement is coaxially arranged between the head end ring platform 103 and the middle ring platform 102, two end faces of the positioning sleeve 2 are respectively contacted with corresponding ring platform surfaces of the head end ring platform 103 and the middle ring platform 102, as required, a plurality of claws 203 are bent inwards in a circumferential direction on the end wall surface of the positioning sleeve 2 far away from the middle ring platform 102, the outer ends of the claws 203 and the head end ring platform 103 are respectively abutted against and positioned with two end faces of a shaft shoulder clamping column in the middle part of the pin 3, that is to say, when the front end of the shaft shoulder clamping column of the pin, the outer end of the claw 203 naturally contracts to correspond to the rear end of the shaft shoulder clamping column, so that the purpose of axially positioning the inserting needle 3 through the head end ring platform 103 and the claw 203 is achieved;
the positioning sleeve 2 is of an annular structure with two spliced and closed end faces made of plate rolls, the two spliced end faces of the plate are respectively provided with a groove 202 and a protrusion 201 which can be mutually buckled, and the radial force applied to the splicing part of the positioning sleeve 2 is counteracted through the mutual buckling of the groove 202 and the protrusion 201, so that the force applied to the positioning sleeve 2 is uniform, the force applied to the inner wall of the pin hole 101 corresponding to the splicing part of the positioning sleeve 2 is reduced or eliminated, the probability of wall thickness cracks is reduced, and the service life of the whole electric connector is prolonged; according to the requirement, the groove 202 is arranged as a dovetail groove, and the protrusion 201 is arranged as an adaptive dovetail protrusion, so that the buckling requirement is met, and the processing is facilitated; in addition, a plurality of grooves 202 are uniformly arranged on the corresponding end surfaces of the butt joint along the axial direction of the positioning sleeve 2, so that the buckling stability is ensured, and preferably, two grooves 202 are arranged; it should be emphasized here that, as long as the positioning sleeve 2 is not opened by radial force after the groove 202 and the protrusion 201 are fastened, a gap can be left between other parts of the two end faces of the splice;
the insulating mounting seat 1 mainly comprises a limiting plate 105 and a mounting plate 104 which are correspondingly connected, and the head end ring platform 103 and the middle ring platform 102 are respectively integrated with the limiting plate 105 and the mounting plate 104, so that the positioning sleeve 2 is inserted into the pin hole 101 of the mounting plate 104 before the limiting plate 105 and the mounting plate 104 are connected; according to needs, the outer wall of the locating sleeve 2 is in clearance fit with the inner wall of the pin hole 101 between the head end ring platform 103 and the middle ring platform 102, so that the locating sleeve 2 is convenient to install, and meanwhile, because the locating sleeve is not tightly attached to the pin hole 101 like a traditional locating piece, when the connector is prevented from being plugged, the locating sleeve 2 exerts radial force on the inner wall of the pin hole 101.
The part of the utility model not detailed is prior art.
Claims (6)
1. The utility model provides an electric connector contact pin mounting structure with closed position sleeve, contains insulating mount pad (1), insulating mount pad (1) is equipped with contact pin hole (101) that link up the terminal surface, the head end and the middle part of contact pin hole (101) are inwards protruding respectively and are equipped with head end ring platform (103) and middle part ring platform (102), coaxial being equipped with between head end ring platform (103) and middle part ring platform (102) is used for fixed contact pin (3) to prevent position sleeve (2) of axial displacement, its characterized in that: the positioning sleeve (2) is an annular structure with two opposite-spliced and closed ends formed by rolling plates, and the two opposite-spliced ends of the plates are respectively provided with a groove (202) and a bulge (201) which can be buckled with each other; insulating mount pad (1) mainly comprise limiting plate (105) and mounting panel (104) of corresponding connection, head end ring platform (103) and middle part ring platform (102) are structure as an organic whole with limiting plate (105) and mounting panel (104) respectively.
2. The electrical connector pin mounting structure with the enclosed positioning sleeve as set forth in claim 1, wherein: the groove (202) is designed as a dovetail groove.
3. The electrical connector pin mounting structure with the enclosed positioning sleeve as set forth in claim 1, wherein: the grooves (202) are uniformly arranged on the corresponding end surfaces of the butt joint along the axial direction of the positioning sleeve (2).
4. The electrical connector pin mounting structure with the enclosed positioning sleeve as set forth in claim 3, wherein: two grooves (202) are arranged.
5. The electrical connector pin mounting structure with the enclosed positioning sleeve as set forth in claim 1, wherein: the outer wall of the locating sleeve (2) is in clearance fit with the inner wall of the pin inserting hole (101) between the head end annular table (103) and the middle annular table (102).
6. The electrical connector pin mounting structure with the enclosed positioning sleeve as set forth in claim 1, wherein: the end wall surface of the positioning sleeve (2) far away from the middle ring platform (102) is inwards bent for one circle to be provided with a plurality of clamping jaws (203), and the outer ends of the clamping jaws (203) and the head end ring platform (103) are respectively abutted against and positioned on two end surfaces of a shaft shoulder clamping column in the middle of the contact pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820797.7U CN213026614U (en) | 2020-08-26 | 2020-08-26 | Electric connector contact pin mounting structure with closed type positioning sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820797.7U CN213026614U (en) | 2020-08-26 | 2020-08-26 | Electric connector contact pin mounting structure with closed type positioning sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN213026614U true CN213026614U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021820797.7U Active CN213026614U (en) | 2020-08-26 | 2020-08-26 | Electric connector contact pin mounting structure with closed type positioning sleeve |
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| Country | Link |
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| CN (1) | CN213026614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566822A (en) * | 2022-01-20 | 2022-05-31 | 中航光电科技股份有限公司 | Contact and connector |
-
2020
- 2020-08-26 CN CN202021820797.7U patent/CN213026614U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566822A (en) * | 2022-01-20 | 2022-05-31 | 中航光电科技股份有限公司 | Contact and connector |
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