A locking mechanism and optical cable junction box

Abstract

This utility model discloses a locking mechanism and an optical cable splice box, belonging to the technical field of optical cable splice boxes. It solves the problem that bolts may fall out of the holes in the optical cable splice box before the bolts and nuts are pre-tightened. It includes two detachably connected temporary fasteners. Each temporary fastener includes a insert and a limiting ring fixedly connected to the outer ring of one end of the insert. The inner ring of the insert, away from the limiting ring, protrudes outward to form an outward convex ring. When the two temporary fasteners are detachably connected, the insert of one set of temporary fasteners is inserted into the insert of the other set. This utility model can pre-fix the optical cable splice box body in advance. Then, when the bolt is inserted into the connection hole on the box body, the bolt needs to pass through the temporary fastener and will be threadedly connected to the bolt's thread, thus ensuring that the bolt does not fall out even when it is inserted into the box body and the nut is not pre-tightened.

Description

Technical Field

[0001] This utility model relates to the field of optical cable junction box technology, and in particular to a locking mechanism and an optical cable junction box. Background Technology

[0002] Fiber optic splice closures are critical devices in optical networks that connect optical cables and protect fiber optic splices. Their core function is to isolate external interference such as moisture, dust, and temperature fluctuations, preventing damage to the splice and ensuring optical signal transmission. They feature a sealed structure suitable for direct burial and overhead applications, and an internal splice tray to organize optical fibers and ensure bending radius. They can connect to optical cables of different specifications, and some models support repeated opening and closing for maintenance. Their outer shell is mostly made of corrosion-resistant materials, capable of withstanding extreme environments, providing stable protection for optical link connections, and directly affecting loss control and link reliability in optical signal transmission.

[0003] Currently, fiber optic splice boxes are connected and closed using a bolt and nut structure. However, during operation, in order to ensure that the holes on the box are aligned when it is closed, it is often necessary to insert the bolts first, then pre-tighten the nuts one by one, and finally tighten them one by one. However, before the bolts and nuts are pre-tightened, the bolts may fall out of the holes on the fiber optic splice box.

[0004] Therefore, a locking mechanism and an optical cable junction box are proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a locking mechanism and an optical cable connector box.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A locking mechanism includes two detachably connected temporary members. Each temporary member includes a tube and a limiting ring plate fixedly connected to the outer ring of one end of the tube. The inner ring of the tube away from the limiting ring plate protrudes outward to form an outer convex ring portion. When the two temporary members are detachably connected, the tube of one set of temporary members is inserted into the tube of the other set of temporary members, and the outer convex ring portion of one set of temporary members is inserted into the outer convex ring portion of the other set of temporary members.

[0008] Preferably, the inner rings of the two temporary components are provided with internal threads on both sides of the outer convex ring, and the outer rings of the two temporary components are provided with external threads on both sides of the outer convex ring. When the two temporary components are detachably connected, the external thread on the inner cylinder is threadedly connected to the internal thread on the outer cylinder.

[0009] Preferably, the end of the limiting ring away from the insert has four slots arranged in a ring array.

[0010] Preferably, the inner ring of the insert has an extension groove that communicates with the recess.

[0011] Preferably, the inner ring of the insert is fixedly connected with two protruding cones, which are located on the thread extension path of the internal thread.

[0012] This utility model also provides an optical cable junction box, including two box bodies that are fitted together, a connecting part fixedly connected to the box body, and several sets of temporary fasteners. The connecting part is provided with a connecting hole, and each set of the temporary fasteners consists of two pieces. The temporary fasteners in the same set are detachably connected in the connecting hole.

[0013] Preferably, the device further includes a bolt and a nut, wherein the bolt passes through two temporary fasteners and is threadedly connected to the inner cone and internal thread of the inner ring of one of the temporary fasteners, and the bolt is threadedly connected to the nut after passing through the temporary fastener.

[0014] This utility model has the following beneficial effects:

[0015] This invention can pre-fix the optical cable junction box body in advance. Then, when the bolt is inserted into the connection hole on the box body, the bolt needs to pass through the temporary fastener and will be threadedly connected with the bolt thread. This ensures that the bolt does not fall out even when it is inserted into the box body and the nut is not pre-tightened. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the locking mechanism in this utility model;

[0018] Figure 2 This is a cross-sectional view of the locking mechanism in this utility model;

[0019] Figure 3 This is a schematic diagram of the optical cable junction box in this utility model.

[0020] In the figure: 1. Limiting ring; 101. Inserted groove; 102. Extension groove; 103. Convex cone; 2. Inserted tube; 201. Outer convex ring; 3. Box body; 301. Connecting part; 302. Connecting hole; 4. Connecting bolt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A locking mechanism, such as Figure 1 and Figure 2 As shown, the device includes two detachably connected temporary components. Each temporary component includes a tube 2 and a limiting ring 1 fixedly connected to the outer ring of one end of the tube 2. The inner ring of the tube 2 away from the limiting ring 1 protrudes outward to form an outer convex ring portion 201. When the two temporary components are detachably connected, the tube 2 of one set of temporary components is inserted into the tube 2 of the other set of temporary components, and the outer convex ring portion 201 of one set of temporary components is inserted into the outer convex ring portion 201 of the other set of temporary components.

[0028] Both temporary fittings have internal threads on the inner rings of their inserts 2 located on both sides of the outer convex ring 201, and both temporary fittings have external threads on the outer rings of their inserts 2 located on both sides of the outer convex ring 201. When the two temporary fittings are detachably connected, the external thread of the inner insert 2 is threadedly connected to the internal thread of the outer insert 2. The inner ring of the insert 2 is fixedly connected to two cones 103, which are located on the thread extension path of the internal thread.

[0029] The end of the limiting ring 1 away from the insert 2 has four grooves 101 arranged in a ring array, and the inner ring of the insert 2 has an extension groove 102 that communicates with the grooves 101.

[0030] This utility model also provides an optical cable junction box, such as Figure 3 As shown, it includes two boxes 3 that fit together, a connecting part 301 fixedly connected to the box 3, several sets of temporary fasteners, bolts and nuts. The connecting part 301 has a connecting hole 302. Each set of temporary fasteners consists of two pieces. The same set of temporary fasteners can be detachably connected in the connecting hole 302. The bolt passes through the two temporary fasteners and is threaded to the inner cone 103 of the inner ring of one of the temporary fasteners. After passing through the temporary fastener, the bolt is threaded to the nut.

[0031] When the two housings 3 of the optical cable splice box are closed, the connecting parts 301 on the two housings 3 of the optical cable splice box fit together and ensure that the connecting holes 302 can be coaxially connected. Then, the temporary fasteners of the same group are inserted into the connecting holes 302 from both ends. At this time, the inserts 2 of the two fasteners are inserted into each other, with one insert 2 inserted into the other insert 2, until the outer protruding ring 201 on the inner insert 2 can be inserted into the outer protruding ring 201 on the outer insert 2. At this time, the two fasteners are temporarily connected together to prevent the two fasteners of the same group from separating. Then, a screwdriver is used to insert them into the groove 101 so that the two fasteners are threaded together, so that the internal thread on the fastener and the external thread on the other fastener are threaded together, ensuring that the two housings 3 of the optical cable splice box can be connected with a certain strength.

[0032] The operator then inserts the bolt directly into the sleeve 2 of one of the temporary components and rotates the bolt, allowing it to connect with the threaded cone 103 and the internal thread of another temporary component. When encountering the internal thread and cone 103 of another temporary component, the bolt can forcefully push through the internal thread and cone 103 of the other temporary component due to the slight protrusion of the internal thread and cone 103, thus completing the penetration action. Finally, it connects with the nut. Even if the bolt thread wears down when penetrating the internal thread and cone 103 of another temporary component, it will not have a devastating impact on the bolt thread. The bolt thread can still maintain a normal connection with the nut. Furthermore, if the hardness of the bolt is greater than that of the temporary component, it will not affect the thread. Therefore, it will not affect the clamping force of the bolt and nut on the housing 3 and will not affect the connection strength.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A latching mechanism, characterized by The device includes two detachably connected temporary components. Each temporary component includes a tube (2) and a limiting ring (1) fixedly connected to the outer ring of one end of the tube (2). The inner ring of the tube (2) away from the limiting ring (1) protrudes outward to form an outer convex ring (201). When the two temporary components are detachably connected, the tube (2) of one set of temporary components is inserted into the tube (2) of the other set of temporary components, and the outer convex ring (201) of one set of temporary components is inserted into the outer convex ring (201) of the other set of temporary components.

2. A closure mechanism according to claim 1, wherein The inner ring of the two temporary fittings' inserts (2) is provided with internal threads on both sides of the outer convex ring (201), and the outer ring of the two temporary fittings' inserts (2) is provided with external threads on both sides of the outer convex ring (201). When the two temporary fittings are detachably connected, the external thread of the inner insert (2) is threadedly connected to the internal thread of the outer insert (2).

3. A closure mechanism according to claim 1, wherein The limiting ring (1) has four slots (101) arranged in a ring array at the end away from the insert (2).

4. The locking mechanism according to claim 3, characterized in that, The inner ring of the insert (2) is provided with an extension groove (102) that communicates with the groove (101).

5. A locking mechanism according to claim 2, characterized in that, The inner ring of the insert (2) is fixedly connected with two protruding cones (103), which are located on the thread extension path of the internal thread.

6. An optical cable junction box, characterized in that, It includes two boxes (3) that fit together, a connecting part (301) fixedly connected to the box (3), and several sets of temporary fasteners. The connecting part (301) has a connecting hole (302). Each set of temporary fasteners consists of two pieces, and the same set of temporary fasteners can be detachably connected in the connecting hole (302).

7. The optical cable junction box according to claim 6, characterized in that, It also includes a bolt and a nut, wherein the bolt is set through two temporary fasteners and is threadedly connected to the inner ring of one of the temporary fasteners by a convex cone (103) and an internal thread, and the bolt is threadedly connected to the nut after passing through the temporary fastener.

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