An MT fiber connector locking structure and an MT fiber connector

Abstract

The application discloses a locking structure of an MT optical fiber connector and the MT optical fiber connector. The locking structure comprises an MT positioning component arranged axially and telescopically along the MT optical fiber connector. The MT positioning component has a first wedge surface arranged obliquely upward along the telescopically direction of the MT positioning component. The locking structure further comprises a locking pressing plate used for covering the MT positioning component. The locking pressing plate has a second wedge surface capable of acting on the first wedge surface to realize the axial telescoping of the MT positioning component during the covering of the locking pressing plate on the MT positioning component. In the locking and matching process, the matching position is in the form of surface-to-surface adhesion. The matching structure is reliable and stable and is not affected by the number of uses.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fiber connectors, and in particular relates to a MT optical fiber connector locking structure and an MT optical fiber connector. Background Art

[0002] Active connectors and components integrate optoelectronic conversion circuits into connectors. The connector connection interface is realized through electrical contacts, and the optical fiber connection interface is enclosed inside the shell of the connector accessories. This not only realizes optical fiber transmission but also fundamentally eliminates the problem of light pollution, which can significantly improve the reliability of the optical network.

[0003] The interface of the parallel optical module used in active connectors is typically a MT fiber optic connector. When mating the optical cable assembly and the optical module interface, a locking mechanism is required to ensure secure mating between the two MT fiber optic connectors. Existing MT fiber optic connector locking mechanisms typically use a retaining spring as the elastic element. However, the base of the retaining spring's claws, repeatedly expanding and contracting, can easily fatigue and break, limiting the useful life of the MT fiber optic connector's locking mechanism. Summary of the Invention

[0004] The present invention aims to provide an MT optical fiber connector locking structure and an MT optical fiber connector to solve the problems of the existing locking structure being easily fatigued, damaged and broken due to repeated expansion and recovery of positioning claws during use, and the limited number of uses of the locking structure.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned object is:

[0006] A locking structure for an MT optical fiber connector includes an MT positioning component that is configured to be telescopically arranged along the axial direction of the MT optical fiber connector, wherein the MT positioning component has a first wedge-shaped surface that is configured to be obliquely upward along the telescopic direction of the MT positioning component;

[0007] The optical fiber connector further comprises a locking pressure plate for covering the MT positioning component. The locking pressure plate has a second wedge-shaped surface that can act on the first wedge-shaped surface to enable the MT positioning component to extend and retract along the axial direction of the MT optical fiber connector when the locking pressure plate is covering the MT positioning component.

[0008] As a preferred solution of the present invention, the MT positioning component includes a guide rod and a first locking plate and a second locking plate relatively slidably sleeved on the guide rod, an elastic member is provided to connect the first locking plate and the second locking plate, and the first wedge surface is provided on the second locking plate.

[0009] As a preferred solution of the present invention, two first wedge-shaped surfaces are provided, and the two first wedge-shaped surfaces are respectively located at two ends of the second locking plate.

[0010] As a preferred solution of the present invention, the elastic member is a spring sleeved on the guide rod.

[0011] As a preferred solution of the present invention, two guide rods are provided in parallel with each other.

[0012] As a preferred solution of the present invention, the locking pressure plate includes a horizontally arranged plate body, and the second wedge-shaped surface is inclined in a direction away from the plate body.

[0013] As a preferred solution of the present invention, the plate body is provided with a bolt hole, and a locking screw is provided through the bolt hole for locking and fixing the locking pressure plate and the MT positioning component.

[0014] As a preferred solution of the present invention, the second wedge surface is provided at one end of the plate body, and the portion of the plate body away from the second wedge surface is used to limit the radial movement of the MT positioning component after the plate body is covered on the MT positioning component.

[0015] A MT optical fiber connector includes a housing and an MT optical fiber contact arranged in the housing. The housing is provided with the above-mentioned MT optical fiber connector locking structure, and the MT optical fiber connector locking structure is used to lock the MT optical fiber contact.

[0016] As a preferred solution of the present invention, the MT optical fiber connector locking structure and the MT optical fiber contact are sequentially arranged along the axis of the MT optical fiber connector.

[0017] Beneficial effects of the present invention:

[0018] The MT fiber optic connector locking structure of the present invention utilizes a cooperating wedge-shaped structure. When a retractable MT positioning component is used to lock the MT fiber optic contact, the locking plate is used to achieve this. During this vertical movement of the locking plate, the wedge-shaped structure is used to convert the locking plate into horizontal movement of the positioning component wedge. This allows the positioning component's axis to be retracted, compressing the spring and providing a locking force for the MT fiber optic contact, thereby achieving the purpose of locking the MT fiber optic connector. During this locking and mating process, the mating parts are in a surface-to-surface contact, and the mating structure is reliable and stable, regardless of the number of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation structure of the existing MT fiber optic connector locking structure;

[0020] Figure 2 A schematic diagram of the installation structure of the MT optical fiber connector locking structure provided in the embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of the MT positioning component;

[0022] Figure 4 This is a structural diagram of the MT locking pressure plate;

[0023] Figure 5 This is a schematic diagram of the structure after the MT positioning component is installed;

[0024] Figure 6 This is a schematic diagram of the structure after the MT locking pressure plate is installed.

[0025] Markings in the figure: 1. MT optical fiber contact, 2. MT positioning component, 201. First locking plate, 202. Second locking plate, 203. Guide rod, 204. First wedge surface, 205. Elastic component, 3. Locking pressure plate, 301. Plate body, 302. Second wedge surface, 303. Bolt hole, 304. Locking screw, 4. Housing, A. Positioning spring, B. Positioning component. DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to the accompanying drawings and specific embodiments. In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", and "tail" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0027] In order to facilitate the understanding of the technical communication of the present invention, Figure 1 Further explanation of the locking structure of the existing MT fiber optic connector, such as Figure 1 As shown in the figure, after the MT fiber optic contact in the MT fiber optic connector is installed, the MT fiber optic contact is reliably pressed against the MT fiber optic contact using a positioning component B. Positioning springs A are provided on both sides of the positioning component. The positioning springs A are spring claws or spring protrusions installed in the MT fiber optic connector housing. After the positioning component presses against the MT fiber optic contact, the positioning springs A limit the pressing and locking force. After multiple installation and removal, the positioning springs repeatedly expand and recover, and their roots are prone to fatigue damage and breakage. The use of the MT fiber optic connector locking structure is limited, and replacement is relatively frequent.

[0028] To this end, the present invention provides a specific embodiment of a locking structure for an MT optical fiber connector:

[0029] Combine Figures 2 to 6As shown, the locking structure of the MT optical fiber connector of this embodiment includes an MT positioning component 2 and a locking pressure plate 3, wherein the MT positioning component 2 is used to be retractable along the axial direction of the MT optical fiber connector to provide a locking force for the MT optical fiber contact 1. In this embodiment, the MT positioning component 2 includes a guide rod 203, a first locking plate 201 and a second locking plate 202, wherein the guide rod 203 can be relatively parallel to each other. The first locking plate 201 and the second locking plate 202 are relatively slidably sleeved on the guide rod 203, and a spring is provided to connect the first locking plate 201 and the second locking plate 202. The elastic member 205 can be a spring sleeved on the guide rod 203. After being set in this way, the first locking plate 201 and the second locking plate 202 can be retracted on the guide rod 203. When used, the second locking plate 202 can be set away from the MT optical fiber contact 1, and the first locking plate 201 can be set close to the optical fiber contact 1. A first wedge surface 204 is provided on the second locking plate 202. The first wedge surface 204 is obliquely upward along the retractable direction of the MT positioning component 2. During implementation, the first wedge surface 204 can be set at a 45° inclination angle.

[0030] The MT fiber optic connector locking structure of this embodiment further includes a locking pressure plate 3, which is used to cover the MT positioning component 2. That is, the locking pressure plate 3 has a movement process perpendicular to the MT positioning component 2 relative to the MT positioning component 2. The locking pressure plate 3 includes a horizontally arranged plate body 301. A second wedge surface 302 is provided at one end of the plate body 301 to cooperate with the first wedge surface 204. The second wedge surface 302 is inclined in a direction away from the plate body 301, and its inclination angle is adapted to the first wedge surface 204. That is, when the locking pressure plate 3 covers the MT positioning component 2, the second wedge surface 302 can act on the first wedge surface 204 to achieve axial expansion and contraction of the MT positioning component 2 along the MT fiber optic connector, thereby causing the MT positioning component 2 to lock the optical fiber contact 1.

[0031] It should be noted that, in this embodiment, since a spring is used on the guide rod 203 to connect the first locking plate 201 and the second locking plate 202, when the first locking plate 201 and the second locking plate 202 approach each other, the spring may cause the guide rod 203 to jump in the radial direction. After the plate body 301 is covered on the MT positioning component 2, the portion of the plate body 301 away from the second wedge surface 302 can also be used to limit the jumping of the spring in the radial direction, thereby ensuring the locking effect.

[0032] In this embodiment, two first wedge surfaces 204 are provided, and the two first wedge surfaces 204 are respectively located at the two ends of the second locking plate 202. To match this, two second wedge surfaces 302 are also provided, which are arranged on both sides of one end of the plate body 301 to ensure stable cooperation of the two wedge surfaces during the covering process.

[0033] In this embodiment, in order to ensure a stable and long-lasting locking effect on the optical fiber contact 1 after it is locked, a bolt hole 303 is provided on the plate body 301. There can be multiple bolt holes 303, and a locking screw 304 is provided through the bolt hole 303. After the locking pressure plate 3 is covered on the MT positioning component 2, the locking screw 304 facilitates the locking of the locking pressure plate 3 and the MT positioning component 2 to maintain a long-lasting and stable locking effect of the locking structure on the optical fiber contact 1.

[0034] In this embodiment, the vertical movement of the locking pressure plate is used to achieve the horizontal extension and retraction of the MT positioning component. During the vertical movement of the locking pressure plate, the wedge structure is used to convert the movement into horizontal movement of the wedge of the positioning component, thereby achieving the extension and retraction of the axis of the positioning component, compressing the spring, and providing locking force for the MT fiber contact, thereby achieving the purpose of locking the MT fiber connector. During this locking and mating process, the mating parts are in a surface-to-surface contact form, and the mating structure is reliable and stable, and is not affected by the number of times it is used.

[0035] The present invention also provides an MT optical fiber connector, which includes a housing 4 and an MT optical fiber contact 1 arranged in the housing 4. Figure 5 、 Figure 6 As shown, two MT fiber optic contacts 1 are butt-jointed and arranged in a housing 4, and a locking structure provided by the present invention is provided at the rear end of the housing 4. The locking structure is used to lock the two MT fiber optic contacts 1 that are butt-jointed and arranged in sequence. When in use, the MT fiber optic connector locking structure and the MT fiber optic contacts 1 are sequentially arranged along the axis of the MT fiber optic connector.

[0036] Combine Figure 5 and Figure 6 As shown, when in use, after the two MT fiber optic contacts 1 are installed in the housing, the MT positioning component 2 is first installed in the housing 1, so that the first locking plate 201 and the second locking plate 202 are relatively slidably sleeved on the guide rod 203 along the axes of the two MT fiber optic contacts 1, and then the locking pressure plate 3 is covered on the MT positioning component 2. During the covering process, the second wedge surface 302 acts on the first wedge surface 204. After the second locking plate 202 is acted upon by the two wedge surfaces, it squeezes the spring, so that the first locking plate 201 presses the two MT fiber optic contacts 1. After the covering is in place, the locking screw 304 is used to lock the locking pressure plate 3 and the MT positioning component 2 to maintain a long-lasting and stable locking effect of the locking structure on the fiber optic contact 1.

[0037] It should be noted that the parts not described in detail herein are prior art, and the above embodiments are only used to illustrate the present invention, but the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the scope of protection of the present invention.

Claims

1. A locking structure for an MT optical fiber connector, characterized in that: The locking structure is used to lock two MT fiber contacts that are sequentially connected in the MT fiber connector. The locking structure includes: An MT positioning component (2) for being telescopically arranged along the axial direction of the MT optical fiber connector, the MT positioning component (2) having a first wedge-shaped surface (204) arranged obliquely upward along the telescopic direction of the MT positioning component (2); The invention also includes a locking pressure plate (3) for covering the MT positioning component (2), wherein the locking pressure plate (3) has a second wedge-shaped surface (302) capable of acting on the first wedge-shaped surface (204) to achieve axial expansion and contraction of the MT positioning component (2) along the MT optical fiber connector during the process of the locking pressure plate (3) covering the MT positioning component (2).

2. The MT optical fiber connector locking structure according to claim 1, wherein: The MT positioning component (2) comprises a guide rod (203) and a first locking plate (201) and a second locking plate (202) which are relatively slidably sleeved on the guide rod (203); an elastic member (205) is provided connecting the first locking plate (201) and the second locking plate (202); and the first wedge surface (204) is provided on the second locking plate (202).

3. The MT optical fiber connector locking structure according to claim 1, wherein: Two first wedge-shaped surfaces (204) are provided, and the two first wedge-shaped surfaces (204) are respectively located at two ends of the second locking plate (202).

4. The MT optical fiber connector locking structure according to claim 2, wherein: The elastic member (205) is a spring sleeved on the guide rod (203).

5. The MT optical fiber connector locking structure according to claim 2, wherein: Two guide rods (203) are provided in parallel with each other.

6. The MT optical fiber connector locking structure according to claim 1, wherein: The locking pressure plate (3) comprises a horizontally arranged plate body (301), and the second wedge-shaped surface (302) is arranged obliquely in a direction away from the plate body (301).

7. The MT optical fiber connector locking structure according to claim 6, wherein: The plate body (301) is provided with a bolt hole (303), and a locking screw (304) is provided through the bolt hole (303) for locking and fixing the locking pressure plate (3) and the MT positioning component (2).

8. The MT optical fiber connector locking structure according to claim 6, wherein: The second wedge-shaped surface (302) is provided at one end of the plate body (301), and the portion of the plate body (301) away from the second wedge-shaped surface (302) is used to limit the radial movement of the MT positioning component (2) after the plate body (301) is covered on the MT positioning component (2).

9. An MT optical fiber connector, comprising a housing (4) and an MT optical fiber contact (1) disposed in the housing (4), characterized in that: An MT optical fiber connector locking structure as described in any one of claims 1 to 8 is provided in the housing (4), and the MT optical fiber connector locking structure is used to lock the MT optical fiber contact (1).

10. The MT optical fiber connector according to claim 9, wherein the MT optical fiber connector locking structure and the MT optical fiber contact (1) are arranged in sequence along the axis of the MT optical fiber connector.

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