WO2014121446A1

WO2014121446A1 - Optical cable access fixing device and optical cable connection box

Info

Publication number: WO2014121446A1
Application number: PCT/CN2013/071404
Authority: WO
Inventors: 杨赞; 邵海波; 刘灿胜
Original assignee: 深圳日海通讯技术股份有限公司
Priority date: 2013-02-05
Filing date: 2013-02-05
Publication date: 2014-08-14

Abstract

An optical cable access fixing device, comprising a rubber sealing member (1), wherein the rubber sealing member (1) is provided thereon with at least two cable through-holes (12) which are arranged at an interval and in a close fit with an optical cable passing therethrough; and slot bodies (14, 16) which communicate with the cable through-holes (12) and are used for cable access, and the cable through-holes (12) are provided with hole covers (15). When accessing the cable, the hole covers (15) are opened, and the slot bodies (14, 16) are expanded. An optical cable connection box equipped with the optical cable access fixing device, comprising a box body (3). One side of the box body (3) is provided with a U-shaped notch (31), and the U-shaped notch (31) is provided with a groove portion (33) and an embossment portion (32), wherein the embossment portion (32) is clipped into a clip slot (11) of the rubber sealing member (1), and the side face of the rubber sealing member (1) matches with the side face of the groove portion (33). The optical cable access fixing device is simple in structure and convenient for operation, and can realize cable access without cutting an optical cable, and an optical cable connection box equipped with the optical cable access fixing device has a relatively good sealing effect after the cable access.

Description

Optical cable cable fixing device and optical cable connecting box

The utility model belongs to the technical field of optical communication devices, and relates to an optical cable cable fixing device and an optical cable connection box of an optical cable connection box. Background technique

With the continuous development of communication technology, FTTH (Fiber To The Home) will become the final form of fiber access network development. Over the years, users have been dreaming of various broadband services. Telecom operators and equipment suppliers have also extensively explored the technology implementation of various broadband services, including the earlier ATM-based B-ISDN system and various recent years. The trend of unified convergence of services to the IP communication platform, and FAT (Fiber Access Terminal) is a commonly used indoor and outdoor optical node product in the FTTH-ODN network. The function of the FAT is to pass the light after the wiring cable is connected. The splitter is connected with the butterfly cable of the household, and the fusion, splicing and splitting functions of the optical cable are completed in the FAT, but the current optical fiber splitter box is simply modified from the optical cable terminal box, and the optical splitter disk Installed in the cabinet, there is no cover on the upper part of the splitter, and it is inevitable that dust will enter the splitter, causing physical damage to the optical fiber, which makes the optical fiber lack protection and is not safe.

The existing Chinese patent document CN 202433578 U discloses a Hough-type cable entry and fixing device for an uninterrupted optical cable for a fiber-optic box, including a plastic card member and a plastic card member, and a plastic card member and a plastic card member. Corresponding to the matching splicing seals and under the splicing seals respectively. The fiber-optic cable of the application uses the Huff-type cable-receiving device of the uninterrupted optical cable to be connected with the upper and lower sides of the plastic card member through the upper and lower sides of the plastic card member, thereby realizing the fixing device of the Huff-type structure, so when the cable is required to be connected The plastic card can be removed, and the cable needs to be directly passed through the plastic card under the splicing, completely eliminating the introduction of the cable required for the conventional cable splicing, and the device is flexible and simple to operate. The tamper is easy to install, dustproof, waterproof, and can avoid breaking the cable.

However, when the cable passes over the splicing seal and the splicing seal, the fit between the plastic clip and the plastic clip can seriously affect the fit between the splicing seal and the splicing seal. The structure is complicated in operation, has many coordination relationships, is difficult to realize, and is also difficult to ensure the sealing between the splicing sealing device and the splicing sealing device and the optical cable, so that there is still a certain degree of gap after the cable is cabled. The entry of dust and the like is not conducive to the protection of the internal device of the cabinet. Utility model content

The purpose of the utility model is to provide a cable entry fixing device and an optical cable connection box which are simple in structure, simple in operation and can realize cable cutting without cutting the cable.

To achieve this, the utility model adopts the following technical solutions:

A cable entry cable fixing device comprising a rubber seal, wherein the rubber seal is spaced apart from at least two cable holes that are tightly engaged with the passing cable, and is connected to the cable hole and used for cable feeding. The trough body is provided with a hole cover, and when the cable is inserted, the hole cover is opened, and the trough body is opened.

The slot body is a wire slot disposed above the cable hole and corresponding to the cable hole. After the cable is placed on the top of the wire slot, the cable hole is pressed into the cable hole. .

The slot body is a communication slot disposed between the two cable holes and connecting the two cable holes, and the cable is passed through the connection between the communication slot and the cable hole. , press the cable hole.

Wherein, the rubber seal is further provided with a cable entry outer ring coaxial with the cable hole. Wherein, further comprising a plastic pressure plate matched with the rubber seal, the plastic pressure plate comprising plastic The plastic platen body is provided with a plastic platen protrusion at the bottom of the plastic platen body, and a side of the rubber seal member is provided with a card slot, and the plastic platen protrusion is engaged with the card slot.

The plastic pressure plate further includes a snap-on ear symmetrically disposed on two sides of the plastic pressure plate body, and a connecting arm connected to the plastic pressure plate body, and a lower inner side of the latching ear and a side of the plastic pressure plate are disposed There is a first slot, a bottom of the connecting arm is provided with a connecting hole, a top of the plastic pressing plate body is provided with an upper cover engaging groove, and both sides of the plastic pressing plate body are provided with a groove.

An optical cable connection box equipped with the cable cable fixing device, comprising a box body, one side of the box body is provided with a U-shaped notch, and the U-shaped notch is provided with a groove portion and a convex portion. The protrusion is engaged with the slot of the rubber seal, and the side of the rubber seal cooperates with the side of the groove.

The groove portion and the convex portion are disposed in a lower portion of the U-shaped notch, the plastic pressing plate is located at an upper portion of the U-shaped notch, and a side of the plastic pressing plate of the plastic pressing plate is matched with a side surface of the U-shaped notch.

Wherein, the inner side of the box body is provided with a support portion on both sides of the U-shaped notch, and a second groove is arranged between the top of the support portion and the inner side of the box body, and the plastic platen a slot is sleeved with the second slot; a bottom portion of the box body is further provided with a connecting portion, and the connecting portion is provided with a screw hole, and the plastic pressure plate is matched with the connecting hole and the screw hole by the locking screw. A fixing to the case is achieved.

The utility model has the beneficial effects that: the optical cable cable fixing device of the utility model closes the cable hole by the hole cover when the cable is not inserted, so that the rubber sealing member can effectively protect the inside of the connected box body, so as to avoid entering dust. When it is necessary to cut the cable, the slot cover can be opened, and the slot communicating with the cable hole can be opened, and the slot can be opened by using the slotted slot until the cable enters the cable hole. Body Recovery, and due to the shrinkage characteristics of the rubber material of the rubber seal, the groove body becomes smaller, and the effect of the auxiliary cable hole clamping cable can be achieved, thereby realizing the cable entry without cutting the cable, the structure is simple and the operation is simple. At the same time, the diameter of the cable hole is slightly smaller than the diameter of the cable to be passed, and after the cable is fed, the cable can be wrapped tightly to achieve a better sealing effect; the cable connection box of the cable fixing device by using the cable The construction operation is convenient, and the difficulty of subsequent disassembly and maintenance can be reduced.

DRAWINGS

Figure 1 is a schematic view of the overall structure of the optical cable entry and cable fixing device of the present invention;

Figure 2 is a schematic structural view 2 of the cable entry fixing device of Figure 1;

Figure 3 is a schematic view of the plastic pressure plate of Figure 1;

Figure 4 is a schematic view of the plastic pressure plate of Figure 1;

Figure 5 is a schematic structural view of the optical cable connection box of the present invention;

Figure 6 is an exploded perspective view of the optical cable connection box of Figure 5;

Fig. 7 is a schematic structural view of the casing of Fig. 5.

In the figure: 1- rubber seal; 2-plastic pressure plate; 3-box; 4-top cover; 5-locking screw; 6- cable fixed position; 7-fiber cable fixing core fixing position; 11-card slot; - Overpass; 13-inlet outer ring; 14-connecting groove; 15-hole cover; 16-passing cable; 21-plastic platen body; 22-carding ear; 23-connecting arm; Groove; 25-plastic plate side; 26-plastic plate projection; 27-groove; 28-connection hole; 29- upper cover groove; 31-U notch; 32-protrusion; 33-groove; 34-support portion; 35-second groove; 36-joint portion.

detailed description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 4, a cable cable fixing device includes a rubber sealing member 1 , and the rubber sealing member 1 is spaced apart from at least two cable holes 12 which are tightly matched with the passing optical cable, and The cable hole 12 is connected and used for the slot of the cable. The cable hole 12 is provided with a hole cover 15, and when the cable is inserted, the hole cover 15 is opened and the groove is opened. The cable cable fixing device closes the cable hole 12 by the hole cover 15 when the cable is not inserted, so that the rubber sealing member 1 can effectively protect the inside of the connected box to avoid entering dust; and when not needed to cut into the cable When the cable is opened, the slot cover 15 can be opened, and the slot communicating with the cable passage 12 can be opened, and the slotted body can be used to enter the cable until the cable enters the cable hole 12, thereby restoring the slot body, The shrinkage characteristic of the rubber material of the rubber seal 1 and the smaller the groove body can achieve the effect of the auxiliary cable hole 12 clamping the optical cable, thereby realizing the cable entry without cutting the optical cable, and the structure is simple and the operation is simple. Preferably, in the present embodiment, the number of the cable holes 12 is two, and generally one of the cable holes 12 is a cable, and the other cable hole 12 is for cable.

The rubber seal 1 is further provided with a cable entry outer ring 13 coaxial with the cable hole 12. Preferably, the cable outer ring 13 is located at one end of the cable hole 12, and can be fixed when the cable is inserted. The guiding property can also make the optical cable enter the outer ring 13 of the cable entry first, so as not to slide to other positions, and can play a positioning role to facilitate the passage of the optical cable.

Preferably, the slot is a cable slot 16 disposed above the cable hole 12 and corresponding to the cable hole 12, and the cable is placed in the cable hole 12 after being placed on the top of the wire slot 16. When the cable is not cut, the wire slot 16 is pulled apart by an external force to deform it. At this time, the cable can be placed on the top of the wire slot 16 and pressed into the cable hole 12 to release. The external force causes the wire trough 16 to return to its original shape under the action of its own contraction force, thereby assisting the cable hole 12 to clamp the optical cable, thereby achieving a sealing effect to a certain extent.

As another preferred embodiment, the slot is a communication slot 14 disposed between the two cable holes 12 and communicating the two cable holes 12, and the cable is passed through the connection between the communication slot 14 and the cable hole 12, Press through the cable hole 12. When the cable is not cut, the communication slot 14 is pulled apart by an external force to deform it. At this time, the cable hole 12 connected to the communication groove 14 is also deformed, and the aperture thereof becomes large, and the optical cable is used. Passing through one side of the enlarged cable hole 12, and gradually pressing into the cable hole 12, releasing the external force, so that the communication groove 16 is restored to its original state by the contraction force, thereby assisting the cable hole 12 clamp. Tight cable can also have a sealing effect.

In the present embodiment, the diameter of the cable holes 12 is 4.8 mm, 5.8 mm, and 6.8 mm, respectively, corresponding to optical cables of 5 mm, 6 mm, and 7 mm in diameter, but is not limited thereto. In actual operation, the diameter of the cable hole 12 is made slightly smaller than the diameter of the cable that actually needs to pass through. After the cable is inserted, the cable hole 12 can tightly enclose the optical cable to achieve a better sealing effect; by using the optical cable connection box of the optical cable cable fixing device, the construction operation is convenient, and the difficulty of subsequent disassembly and maintenance can be reduced.

Further, the cable entry fixing device further comprises a plastic pressing plate 2 matched with the rubber sealing member 1. The plastic pressing plate 2 comprises a plastic pressing plate body 21, and a bottom of the plastic pressing plate body 21 is provided with a plastic pressing plate protrusion 26, and the rubber sealing member 1 The side circumference is provided with a card slot 11 , and the plastic platen protrusion 26 is engaged with the card slot 11 . The plastic platen 2 further includes a latching lug 22 symmetrically disposed on opposite sides of the plastic platen body 21, and a first slot 24 is disposed between the lower inner side of the latching lug 22 and the plastic pressing plate side 25. After the cable is unplugged, the plastic platen 2 is engaged with the rubber seal 1 and the plastic platen 2 is placed on the top of the rubber seal 2 to press the wire groove 16 of the rubber seal 1 so that The wire groove 16 is closed by the pressure of the plastic press plate 2 and its own contraction force, thereby achieving sealing.

The plastic platen 2 further includes a connecting arm 23 connected to the plastic platen body 21, and the bottom of the connecting arm 23 is provided with a connecting hole 28 for connection with other equipment. The plastic platen body 21 is provided with grooves 27 on both sides thereof. When assembling or disassembling the plastic platen 2, the finger can be placed in the recess 27 for easy gripping and effective force application to achieve the pressing during assembly or the pulling up during disassembly. The top of the plastic platen body 21 is provided with an upper cover engaging groove 29.

As shown in FIGS. 5 to 7, an optical cable connection box equipped with an optical cable cable fixing device includes a casing 3, and one side of the casing 3 is provided with a U-shaped notch 31, and the U-shaped notch 31 is provided with a groove portion 33. And convex The lifting portion 32 is engaged with the locking groove 11 of the rubber seal 1, and the side surface of the rubber sealing member 1 is engaged with the side surface of the groove portion 33. By the cooperation of the card slot 11 and the boss 32, the rubber seal 1 is easily aligned during installation, and after assembly, the fixing is reliable, the slippage and the like are not easily generated, and the construction operation is convenient, and the cable is installed. The cable connection box of the cable fixing device can achieve better sealing effect after the cable is fed, and ensure that the cable is not easily dropped into the cable connection box, thereby ensuring safe and reliable operation of other components in the cable connection box.

The groove portion 33 and the convex portion 32 are disposed in the lower portion of the U-shaped notch 31, the plastic pressing plate 2 is located at the upper portion of the U-shaped notch 31, and the plastic pressing plate side 25 of the plastic pressing plate 2 is matched with the side surface of the U-shaped notch 31. The inner side of the box body 3 is provided with a support portion 34 on both sides of the U-shaped notch 31, and a second groove 35 is disposed between the top of the support portion 34 and the inner side of the box body 3, and the first groove 24 of the plastic pressure plate 2 is The two slots 35 are sleeved so as to enhance the strength of the side wall of the box 3 to a certain extent; the bottom of the box 3 is further provided with a connecting portion 36, the connecting portion 36 is provided with a screw hole, and the plastic pressing plate 2 is passed through the locking screw 5 Cooperating with the connecting hole 28 and the screw hole to fix the housing 3.

When the optical cable is loaded in the above-mentioned optical cable connection box, if the optical cable does not need to be cut, the hole cover 15 of the cable hole 12 of the rubber seal 1 can be opened at this time, generally at the construction site, since the hole cover 15 is relatively thin, The hole cover 15 can be opened by directly using a tool such as a relatively common screwdriver, and the wire groove 16 of the rubber seal 1 can be opened, and the cable can be placed on the top of the wire groove 16 from bottom to bottom. The optical cable is pressed until the optical cable enters the cable hole 12, and the optical cable is tightly wrapped by the shrinkage characteristic of the rubber seal 1 to achieve sealing; at this time, the rubber seal 1 penetrating the optical cable can be inserted into the casing 3 The U-shaped notch 31 is fixed to the convex portion 32 and the groove portion 33 of the casing 3 through the slot 11 of the rubber seal 1, and then the plastic pressure plate 2 is pressed down, and the plastic pressure plate is raised 26 The card slot 11 of the upper portion of the rubber seal 1 is fixedly fixed, and the side surface 25 of the plastic platen is matched with the side surface of the U-shaped notch 31, so that the top cover of the plastic platen 2 is fitted with the groove 29 Aligning with the tank body at the top of the casing 3, after the first groove 24 and the second groove 35 are engaged, the plastic pressure plate 2 and the casing 3 are fixed by the cooperation of the locking screw 5 with the connecting portion 36 and the connecting hole 28; The optical cable that is inserted into the casing 3 of the optical cable connection box is fixed to the optical cable fixing core fixing position 7 through the optical cable fixing position 6 so that the cable hole 12 of the rubber sealing member 1 is substantially not pulled by the optical cable. The cable can be placed very well at the cable hole 12. After the optical cable of the optical cable connection box is assembled, the upper cover 3 is covered, and the top of the upper cover 3 is inserted into the upper cover matching groove 29 to enhance the sealing effect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A cable-carrying cable fixing device, comprising: a rubber sealing member (1), wherein the rubber sealing member (1) is spaced apart from at least two cable holes that are tightly matched with the passing optical cable (12) And a tank body communicating with the cable passage (12) for cable entry, the cable passage (12) is provided with a hole cover (15), and when the cable is inserted, the hole cover (15) is opened. And open the trough.

2. The cable entry cable fixing device according to claim 1, wherein: the slot body is disposed above the cable hole (12) and corresponds to the cable hole (12) The wire trough (16) is placed in the top of the wire trough (16) and pressed into the cable hole (12).

3. The cable entry cable fixing device according to claim 1, wherein: the slot body is disposed between the two cable holes (12), and the two cable holes are provided. (12) The communicating communication groove (14) passes through the connection of the communication groove (14) and the cable hole (12), and is pressed into the cable hole (12).

4. The cable entry fixing device according to claim 1, wherein: the rubber seal (1) is further provided with a cable entry outer ring coaxial with the cable hole (12). (13).

The optical cable cable fixing device according to any one of claims 1 to 4, further comprising: a plastic pressing plate (2) matched with the rubber sealing member (1), the plastic pressing plate

(2) comprising a plastic platen body (21), a bottom of the plastic platen body (21) is provided with a plastic platen protrusion (26), and a side of the rubber seal (1) is provided with a card slot (11). The plastic platen protrusion (26) is engaged with the card slot (11).

The cable-carrying cable fixing device according to claim 5, wherein the plastic pressing plate (2) further comprises a latching ear (22) symmetrically disposed on two sides of the plastic platen body (21). And a connecting arm (23) connected to the plastic platen body (21), a first groove (24) is disposed between the lower inner side of the latching ear (22) and the plastic pressing plate side (25), The bottom of the connecting arm (23) is provided with a connecting hole (28), and the top of the plastic platen body (21) is provided with a top cover The groove (29) is provided with a groove (27) on both sides of the plastic platen body (21).

7. A fiber optic cable connection box equipped with the cable entry cable fixing device according to any one of claims 1 to 6, characterized in that it comprises a box body (3), one side of the box body (3) is provided U-shaped gap

(31), the U-shaped notch (31) is provided with a groove portion (33) and a convex portion (32), and the convex portion (32) is engaged with the card slot of the rubber seal (1) (11), a side surface of the rubber seal (1) is fitted to a side surface of the groove portion (33).

8. The optical cable connection box according to claim 7, wherein: the groove portion

(33) and a raised portion (32) is disposed at a lower portion of the U-shaped notch (31), a plastic pressing plate (2) is located at an upper portion of the U-shaped notch (31), and a plastic pressing plate side of the plastic pressing plate (2) (25) Cooperating with the side of the U-shaped notch (31).

The optical cable connection box according to claim 8, wherein: the inner side of the casing (3) is provided with a support portion (34) on both sides of the U-shaped notch (31). Support

a second groove (35) is disposed between the top of the casing (34) and the inner side of the casing (3), and the first groove (24) and the second groove (35) of the plastic pressure plate (2) are sleeved The bottom of the box (3) is further provided with a connecting portion (36), the connecting portion (36) is provided with a screw hole, and the plastic pressing plate (2) passes through the locking screw (5) and the connecting hole (28) The screw hole is matched to the fixing of the casing (3).