Buckle for preventing MPO from loosening

Abstract

The utility model relates to a buckle for preventing MPO from loosening, which comprises a first U-shaped buckle and a second U-shaped buckle, the opening end of the first U-shaped buckle and the opening end of the second U-shaped buckle are oppositely arranged and are clamped with each other, and the first U-shaped buckle and / or the second U-shaped buckle are / is provided with a digging hand which serves as a force application point and enables the first U-shaped buckle and the second U-shaped buckle to release the clamping state under external force application. The MPO adapter has the beneficial effects that the first U-shaped buckle and the second U-shaped buckle are clamped in the sliding grooves in the MPO to prevent the shell in the MPO from sliding backwards, so that even if the optical fiber patch cord has a certain weight, the buckle of the adapter and the MPO are not easy to loosen, and if maintenance is needed, the first U-shaped buckle and the second U-shaped buckle can be released by pulling the handle with force, so that the maintenance is convenient. The MPO buckle is simple in structure and convenient to buckle and take down.

Description

Technical Field

[0001] The utility model relates to the technical field of MPO, in particular to a buckle used to prevent the MPO from loosening. Background Art

[0002] MPO (fiber optic connector) includes: an outer shell, an inner shell and a fiber optic patch cord. The inner shell is sleeved on the fiber optic patch cord, and the outer shell is movably sleeved on the inner shell. The rear ends of the outer shell and the inner shell both have annular protrusions. When the outer shell moves on the inner shell along its length, a slide groove will be formed between the rear ends of the outer shell and the inner shell. When the MPO is inserted into the adapter of the optical module, the outer shell of the MPO will block the buckle of the adapter to prevent the buckle of the adapter from bouncing outward, so as to avoid abnormal position of the fiber optic patch cord and affect the performance. However, in actual use, especially when the fiber optic patch cord is relatively long, since the fiber optic patch cord has a certain weight, it is easy to cause the buckle of the adapter to loosen from the MPO. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a buckle for preventing the MPO from loosening, so as to overcome the deficiencies in the above-mentioned prior art.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a buckle for preventing an MPO from loosening, comprising: a first U-shaped buckle and a second U-shaped buckle, wherein the opening end of the first U-shaped buckle is arranged opposite to and clamped with the opening end of the second U-shaped buckle, and the first U-shaped buckle and / or the second U-shaped buckle have a handle which serves as a force application point and releases the clamping state of the first U-shaped buckle and the second U-shaped buckle under external force.

[0005] The beneficial effect of the utility model is that when the MPO is plugged into the adapter of the optical module horizontally, the open end of the first U-shaped buckle and the open end of the second U-shaped buckle are distributed horizontally, and the first U-shaped buckle and the second U-shaped buckle are stuck in the slide groove in the MPO; when the MPO is plugged into the adapter of the optical module vertically, the open end of the first U-shaped buckle and the open end of the second U-shaped buckle are distributed vertically, and the first U-shaped buckle and the second U-shaped buckle are inserted in the slide groove in the MPO to prevent the outer shell in the MPO from sliding backward. Therefore, even if the optical fiber jumper has a certain weight, it is not easy to cause the buckle of the adapter to loosen with the MPO. If maintenance is required, force is applied to pull the handle to release the first U-shaped buckle and the second U-shaped buckle from the clamping state, so that they can be separated and removed from the MPO. The structure is simple, and it is convenient to buckle and remove.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, one of the two side arms of the first U-shaped buckle has a first protrusion on its outer side, and the other side arm has a first snap-in hole on its inner side; one of the two side arms of the second U-shaped buckle has a second protrusion on its outer side, and the other side arm has a second snap-in hole on its inner side; the first protrusion is snapped into the second snap-in hole and the second protrusion is snapped into the first snap-in hole to enable the first U-shaped buckle to be snap-connected with the second U-shaped buckle.

[0008] The above further beneficial effects are: easy assembly, simple structure and good stability.

[0009] Furthermore, the first U-shaped buckle has a side arm with a first snap-in hole, and the inner side surface of the end portion of the side arm is recessed outward to form a grip at the end portion of the side arm; the second U-shaped buckle has a side arm with a second snap-in hole, and the inner side surface of the end portion of the side arm is recessed outward to form a grip at the end portion of the side arm.

[0010] The above method has the further beneficial effect of being simple in structure and easily used as a force application point to release the first U-shaped buckle from the second U-shaped buckle.

[0011] Furthermore, the first U-shaped buckle has a first protrusion whose inner side surface of the side arm is provided with a first step for accommodating the upper boss of the inner shell of the MPO; the second U-shaped buckle has a second protrusion whose inner side surface of the side arm is provided with a second step for accommodating the upper boss of the inner shell of the MPO.

[0012] The above method has the further beneficial effect that it can be applied to both the MPO with a boss on the inner shell and the MPO without a boss on the inner shell, and has good versatility.

[0013] Furthermore, the first U-shaped buckle has a side arm with a first snap-in hole bent outward in the end area, and the first snap-in hole is located in the area where the side arm is bent outward; the second U-shaped buckle has a side arm with a second snap-in hole bent outward in the end area, and the second snap-in hole is located in the area where the side arm is bent outward.

[0014] The above further beneficial effect is that the first U-shaped buckle and the second U-shaped buckle can be better interlocked together, and when it is necessary to remove them, they can be directly opened with the fingers.

[0015] Furthermore, the first U-shaped buckle has a first bayonet / hole, and the inner side surface of the side arm is provided with a first step for accommodating the boss on the inner shell of the MPO; the second U-shaped buckle has a first bayonet / hole, and the inner side surface of the side arm is provided with a second step for accommodating the boss on the inner shell of the MPO, the side arm of the first U-shaped buckle with the first bayonet / hole is longer than the side arm with the first protrusion, and the side arm of the second U-shaped buckle with the second bayonet / hole is longer than the side arm with the second protrusion.

[0016] The above method has the further beneficial effect that it can be applied to both MPOs with bosses on the inner shell and MPOs without bosses on the inner shell, and has good versatility. Meanwhile, different lengths of the side arms can better form interlocking.

[0017] Furthermore, the structure of the first U-shaped buckle is the same as the structure of the second U-shaped buckle.

[0018] The further beneficial effect of adopting the above method is that only one set of molds is needed, which reduces the cost and improves the versatility.

[0019] Furthermore, the outer sides of the two side arms of the first U-shaped buckle are respectively provided with a first protrusion, and the inner sides of the two side arms of the second U-shaped buckle are respectively provided with a first snap-in slot / hole, and the two first protrusions are respectively inserted into the two first snap-in slots / holes to enable the first U-shaped buckle and the second U-shaped buckle to be snap-connected.

[0020] The above further beneficial effects are: easy assembly, simple structure and good stability.

[0021] Furthermore, the inner side surfaces of the two side arms of the second U-shaped buckle at the ends thereof are recessed outwards to form a grip at the end of each side arm.

[0022] The above method has the further beneficial effect of being simple in structure and easily used as a force application point to release the first U-shaped buckle from the second U-shaped buckle.

[0023] Furthermore, the two side arms of the first U-shaped buckle are of equal length, the two side arms of the second U-shaped buckle are of equal length, and the side arms of the first U-shaped buckle are shorter than the side arms of the second U-shaped buckle; the inner sides of the two side arms of the second U-shaped buckle are provided with a second step for accommodating the boss on the inner shell of the MPO.

[0024] The above-mentioned further beneficial effects are: making the two side arms of the first U-shaped buckle equal in length and the two side arms of the second U-shaped buckle equal in length, and the side arms of the first U-shaped buckle are shorter than the side arms of the second U-shaped buckle, which can increase the width of the buckle and make them fit better. It can be applied to both MPOs with bosses on the inner shell and MPOs without bosses on the inner shell, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of the first buckle used to prevent the MPO from loosening in the utility model;

[0026] Figure 2 This is an exploded view of the first buckle used to prevent the MPO from loosening in the utility model;

[0027] Figure 3 This is an application diagram of the first buckle used to prevent the MPO from loosening in the utility model;

[0028] Figure 4 It is a partial exploded view of the first buckle application diagram for preventing MPO from loosening in the utility model;

[0029] Figure 5 This is a structural diagram of the second buckle used to prevent the MPO from loosening in the utility model;

[0030] Figure 6 This is an exploded view of the second buckle used to prevent the MPO from loosening in the utility model;

[0031] Figure 7 This is an application diagram of the second buckle used to prevent the MPO from loosening in the utility model;

[0032] Figure 8 It is a partial exploded view of the second buckle application diagram for preventing MPO from loosening in the utility model;

[0033] Fig. 9 This is a structural diagram of the third buckle used to prevent the MPO from loosening in the utility model;

[0034] Fig.10 This is an exploded view of the third buckle used to prevent the MPO from loosening in the utility model;

[0035] Fig.11 This is an application diagram of the third buckle used to prevent the MPO from loosening in the utility model;

[0036] Fig.12 It is a partial exploded view of the third buckle application diagram for preventing the MPO from loosening in the utility model.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1. First U-shaped buckle, 2. Second U-shaped buckle, 3. Hand grip, 4. First protrusion, 5. First bayonet / hole, 6. Second protrusion, 7. Second bayonet / hole, 8. First step, 9. Second step. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] Example 1

[0041] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Fig. 9 , Fig.10As shown, a buckle for preventing the MPO from loosening comprises: a first U-shaped buckle 1 and a second U-shaped buckle 2, wherein the open end of the first U-shaped buckle 1 and the open end of the second U-shaped buckle 2 are arranged opposite to each other and are clamped together, and when the MPO (optical fiber connector) is inserted into the adapter of the optical module in the horizontal direction, the open end of the first U-shaped buckle 1 and the open end of the second U-shaped buckle 2 are distributed in the horizontal direction, and the first U-shaped buckle 1 and the second U-shaped buckle 2 are clamped in the slide groove in the MPO, and when the MPO (optical fiber connector) is inserted into the adapter of the optical module in the vertical direction, the open end of the first U-shaped buckle 1 and the open end of the second U-shaped buckle 2 are distributed in the vertical direction, and the first U-shaped buckle 1 and the second U-shaped buckle 2 are clamped in the slide groove in the MPO; the first U-shaped buckle 1 and / or the second U-shaped buckle 2 are provided with a gripper 3 which serves as a force application point and allows the first U-shaped buckle 1 and the second U-shaped buckle 2 to release the clamping state under external force;

[0042] When the first U-shaped buckle 1 and the second U-shaped buckle 2 are inserted into the slide groove in the MPO and the first U-shaped buckle 1 and the second U-shaped buckle 2 are engaged, the outer shell in the MPO can be prevented from sliding backward. Therefore, even if the optical fiber jumper has a certain weight, it is not easy to cause the adapter buckle to loosen from the MPO. If maintenance is required, force is applied to pull the handle 3 to release the engagement state of the first U-shaped buckle 1 and the second U-shaped buckle 2, so that they can be separated and removed from the MPO. The structure is simple, and it is easy to buckle and remove.

[0043] Example 2

[0044] like Figure 1 to Figure 4 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0045] The outer side surface of one of the two side arms of the first U-shaped buckle 1 has a first protrusion 4, and the inner side surface of the other of the two side arms of the first U-shaped buckle 1 has a first bayonet / hole 5; the outer side surface of one of the two side arms of the second U-shaped buckle 2 has a second protrusion 6, and the inner side surface of the other of the two side arms of the second U-shaped buckle 2 has a second bayonet / hole 7; when the first protrusion 4 is snapped into the second bayonet / hole 7 and the second protrusion 6 is snapped into the first bayonet / hole 5, the first U-shaped buckle 1 and the second U-shaped buckle 2 can be snapped together. In this embodiment, the first bayonet / hole 5 is preferably a bayonet, and the second bayonet / hole 7 is preferably a bayonet.

[0046] Furthermore: the first U-shaped buckle 1 has a side arm with a first snap-in socket / hole 5, and the inner side surface of the side arm (side arm) end is recessed outward to form a grab 3 at the end of the side arm; the second U-shaped buckle 2 has a side arm with a second snap-in socket / hole 7, and the inner side surface of the side arm (side arm) end is recessed outward to form a grab 3 at the end of the side arm.

[0047] Preferably, the side surfaces of the first protrusion 4 on the first U-shaped buckle 1 close to and away from its U-shaped end are both bevels, and the side surfaces of the second protrusion 6 on the second U-shaped buckle 2 close to and away from its U-shaped end are both bevels, with the bevels serving as guide surfaces. Similarly, the corresponding side surfaces of the first bayonet / hole 5 are also bevels, and the corresponding side surfaces of the second bayonet / hole 7 are also bevels, so as to facilitate the first protrusion 4 to be inserted into the second bayonet / hole 7, and to facilitate the second protrusion 6 to be inserted into the first bayonet / hole 5.

[0048] In addition, the first U-shaped buckle 1 has a first protrusion 4, and the inner side surface of the side arm is provided with a first step 8 for accommodating the upper boss of the inner shell of the MPO; the second U-shaped buckle 2 has a second protrusion 6, and the inner side surface of the side arm is provided with a second step 9 for accommodating the upper boss of the inner shell of the MPO.

[0049] The first U-shaped buckle 1 has a side arm with a first snap-in socket / hole 5 bent outward in the end area, and the first snap-in socket / hole 5 is located in the area where the side arm is bent outward; the second U-shaped buckle 2 has a side arm with a second snap-in socket / hole 7 bent outward in the end area, and the second snap-in socket / hole 7 is located in the area where the side arm is bent outward.

[0050] As a preference, the structure of the first U-shaped buckle 1 is the same as that of the second U-shaped buckle 2 .

[0051] Example 3

[0052] like Figures 5 to 8 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0053] One of the two side arms of the first U-shaped buckle 1 has a first protrusion 4 on its outer side, and the other of the two side arms of the first U-shaped buckle 1 has a first snap-in hole 5 on its inner side; one of the two side arms of the second U-shaped buckle 2 has a second protrusion 6 on its outer side, and the other of the two side arms of the second U-shaped buckle 2 has a second snap-in hole 7 on its inner side; when the first protrusion 4 is inserted into the second snap-in hole 7 and the second protrusion 6 is inserted into the first snap-in hole 5, the first U-shaped buckle 1 and the second U-shaped buckle 2 can be snap-connected. In this embodiment, the first snap-in hole 5 is preferably a snap-in hole, and the second snap-in hole 7 is preferably a snap-in hole.

[0054] Preferably, the side surface of the first protrusion 4 on the first U-shaped buckle 1 away from its U-shaped end is a slope, and the side surface of the second protrusion 6 on the second U-shaped buckle 2 away from its U-shaped end is a slope. The slopes are used as guide surfaces to facilitate the first protrusion 4 to be inserted into the second bayonet / hole 7, and to facilitate the second protrusion 6 to be inserted into the first bayonet / hole 5.

[0055] Furthermore: the first U-shaped buckle 1 has a side arm with a first snap-in socket / hole 5, and the inner side surface of the side arm (side arm) end is recessed outward to form a grab 3 at the end of the side arm; the second U-shaped buckle 2 has a side arm with a second snap-in socket / hole 7, and the inner side surface of the side arm (side arm) end is recessed outward to form a grab 3 at the end of the side arm.

[0056] In addition, the first U-shaped buckle 1 has a first bayonet / hole 5, and the inner side surface of the side arm is provided with a first step 8 for accommodating the boss on the inner shell of the MPO; the second U-shaped buckle 2 has a first bayonet / hole 5, and the inner side surface of the side arm is provided with a second step 9 for accommodating the boss on the inner shell of the MPO. The side arm of the first U-shaped buckle 1 with the first bayonet / hole 5 is longer than the side arm with the first protrusion 4, and the side arm of the second U-shaped buckle 2 with the second bayonet / hole 7 is longer than the side arm with the second protrusion 6.

[0057] As a preference, the structure of the first U-shaped buckle 1 is the same as that of the second U-shaped buckle 2 .

[0058] Example 4

[0059] like Figures 9 to 12 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0060] The outer side surfaces of the two side arms of the first U-shaped buckle 1 are respectively provided with a first protrusion 4, and the inner side surfaces of the two side arms of the second U-shaped buckle 2 are respectively provided with a first bayonet / hole 5. When the two first protrusions 4 are respectively inserted into the two first bayonet / holes 5, the first U-shaped buckle 1 and the second U-shaped buckle 2 are snapped together. In this embodiment, the first bayonet / hole 5 is preferably a bayonet hole, and the second bayonet / hole 7 is preferably a bayonet hole.

[0061] Furthermore, the side surface of the first protrusion 4 on the first U-shaped buckle 1 away from the U-shaped end thereof is an inclined surface, so as to facilitate the first protrusion 4 to be inserted into the second bayonet / hole 7 .

[0062] Preferably, the inner side surfaces of the two side arms of the second U-shaped buckle 2 at the ends thereof are recessed outwards to form a handle 3 at the end of each side arm.

[0063] The two side arms of the first U-shaped buckle 1 are of equal length, and the two side arms of the second U-shaped buckle 2 are of equal length. The side arms of the first U-shaped buckle 1 are shorter than the side arms of the second U-shaped buckle 2. The inner sides of the two side arms of the second U-shaped buckle 2 are provided with a second step 9 for accommodating the boss on the inner shell of the MPO.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A buckle for preventing MPO from loosening, characterized in that: include: A first U-shaped buckle (1) and a second U-shaped buckle (2), wherein the open end of the first U-shaped buckle (1) and the open end of the second U-shaped buckle (2) are arranged opposite to each other and are engaged with each other, and the first U-shaped buckle (1) and / or the second U-shaped buckle (2) are provided with a handle (3) which serves as a force application point and releases the engaged state of the first U-shaped buckle (1) and the second U-shaped buckle (2) under external force.

2. A buckle for preventing MPO from loosening according to claim 1, characterized in that: The first U-shaped buckle (1) has two side arms, one of which has a first protrusion (4) on its outer side, and the other side arm has a first snap-in hole (5) on its inner side; the second U-shaped buckle (2) has two side arms, one of which has a second protrusion (6) on its outer side, and the other side arm has a second snap-in hole (7) on its inner side; the first protrusion (4) is snapped into the second snap-in hole (7) and the second protrusion (6) is snapped into the first snap-in hole (5) so that the first U-shaped buckle (1) and the second U-shaped buckle (2) are snapped into each other.

3. A buckle for preventing MPO from loosening according to claim 2, characterized in that: The first U-shaped buckle (1) has a side arm with a first snap-in slot / hole (5), the inner side surface of which is recessed outward at the end of the side arm to form a grip (3) at the end of the side arm; the second U-shaped buckle (2) has a side arm with a second snap-in slot / hole (7), the inner side surface of which is recessed outward at the end of the side arm to form a grip (3) at the end of the side arm.

4. A buckle for preventing MPO from loosening according to claim 2, characterized in that: The first U-shaped buckle (1) has a first protrusion (4) whose inner side surface of the side arm is provided with a first step (8) for accommodating the upper boss of the inner shell of the MPO; the second U-shaped buckle (2) has a second protrusion (6) whose inner side surface of the side arm is provided with a second step (9) for accommodating the upper boss of the inner shell of the MPO.

5. A buckle for preventing MPO from loosening according to claim 3, characterized in that: The first U-shaped buckle (1) has a side arm with a first snap-in hole (5) bent outwards in the end region, and the first snap-in hole (5) is located in the region where the side arm is bent outwards; the second U-shaped buckle (2) has a side arm with a second snap-in hole (7) bent outwards in the end region, and the second snap-in hole (7) is located in the region where the side arm is bent outwards.

6. A buckle for preventing MPO from loosening according to claim 2, characterized in that: The first U-shaped buckle (1) has a first bayonet / hole (5), and the inner side surface of the side arm is provided with a first step (8) for accommodating the upper boss of the inner shell of the MPO; the second U-shaped buckle (2) has a first bayonet / hole (5), and the inner side surface of the side arm is provided with a second step (9) for accommodating the upper boss of the inner shell of the MPO; the side arm of the first U-shaped buckle (1) having the first bayonet / hole (5) is longer than the side arm having the first protrusion (4); the side arm of the second U-shaped buckle (2) having the second bayonet / hole (7) is longer than the side arm having the second protrusion (6).

7. A buckle for preventing MPO from loosening according to any one of claims 1 to 6, characterized in that: The structure of the first U-shaped buckle (1) is the same as the structure of the second U-shaped buckle (2).

8. A buckle for preventing MPO from loosening according to claim 1, characterized in that: The outer side surfaces of the two side arms of the first U-shaped buckle (1) are respectively provided with a first protrusion (4), and the inner side surfaces of the two side arms of the second U-shaped buckle (2) are respectively provided with a first snap-in slot / hole (5). The two first protrusions (4) are respectively snapped into the two first snap-in slots / holes (5) to achieve snap connection between the first U-shaped buckle (1) and the second U-shaped buckle (2).

9. A buckle for preventing MPO from loosening according to claim 8, characterized in that: The inner side surfaces of the two side arms of the second U-shaped buckle (2) at the ends thereof are recessed outwards to form a grip (3) at the end of each side arm.

10. A buckle for preventing MPO from loosening according to claim 8, characterized in that: The two side arms of the first U-shaped buckle (1) are of equal length, and the two side arms of the second U-shaped buckle (2) are of equal length, and the side arms of the first U-shaped buckle (1) are shorter than the side arms of the second U-shaped buckle (2); the inner side surfaces of the two side arms of the second U-shaped buckle (2) are provided with a second step (9) for accommodating the upper boss of the inner shell of the MPO.

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