CN105093458B - Prefabricated optical cable perforation assistor - Google Patents

Abstract

The invention discloses a prefabricated optical cable perforation auxiliary device, which includes a fixed half groove fixed at the lower part of the large mouth end of the tapered ring, a movable half groove hinged at the upper part of the large mouth end of the There is a half-ring groove, a half-ring plate is inserted in the half-ring groove, a lower half elastic cone plug is arranged in the lower half cavity of the tapered ring, and a lower half clamping channel is arranged on the top surface of the lower half elastic cone plug, and the upper half of the tapered ring There is an upper half elastic cone plug in the half cavity, and an upper half clamping channel is arranged on the bottom surface of the upper half elastic cone plug. The elastic strips that are elastically sealed and compressed by the two are also provided with a locking mechanism that locks the two together. The upper part of the large mouth end of the conical ring or the corresponding rear end of the movable half groove is also provided with an elastic strip that enables the two to be elastically sealed and compressed. . It can guide the prefabricated optical cable through straight holes and curved holes, protect the prefabricated optical cable from damage and pollution in the hole, can assist in pulling the prefabricated optical cable, and is easy to operate.

Description

Prefabricated fiber optic cable punching aid

technical field

The present invention relates to prefabricated optical cable punching aids.

Background technique

With the rapid development of electric power intelligent technology, intelligent substations based on digital signals and optical fiber connections have replaced conventional substations based on analog signals and cable connections. The main features of smart substations: local sampling, information digitization, and communication standardization. The most obvious material change: Fiber optic cables have replaced most of the copper control cables.

At present, there are two main construction methods for optical cables in the construction and maintenance of smart substations:

(1) Construction method of on-site fusion splicing of optical cables: special tools such as fusion splicers, optical fiber strippers, etc. are required, the operation process is extremely cumbersome, the requirements for operators are high, and the construction time is long; Difficult to guarantee. A 220kV smart substation needs nearly 6,000 optical fiber joints to be fused, and two skilled optical cable fusion workers can weld 300 points, and it takes 20 days to fused optical cables alone. This kind needs on-the-spot welding construction method construction period to be longer.

(2) Prefabricated optical cable construction method: The corresponding optical cable is prefabricated in advance according to the design requirements in the manufacturer, and the optical cable is directly laid on site according to the number of the optical cable. This method only increases the time for selecting prefabricated optical cables according to the design requirements, and the time will not exceed 1 day. This construction method takes less time and enables standard customization of optical cables. The biggest disadvantage of prefabricated optical cables: The optical cable pigtails are relatively fragile and cannot be stretched, stepped on, or dust-proof, and are easy to break during construction, especially in long-distance, wall-penetrating, and pipe-penetrating constructions.

To sum up, the two methods have their own advantages and disadvantages. However, due to the fact that the second construction method is easy to break and has a low success rate, that is, high cost, only the first method with a longer construction period can only be used in substation optical cable perforation. The construction method leads to lower work efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a prefabricated optical cable perforation assistant with reasonable structure, which can guide the perforation of the prefabricated optical cable, protect the prefabricated optical cable from damage and pollution, and is easy to operate.

In order to solve the above-mentioned technical problems, the structural features of the prefabricated optical cable perforation aid are as follows: it includes a tapered ring arranged horizontally on the axis, the lower part of the large mouth end of the tapered ring is fixed with a corresponding fixed half groove extending laterally, and the large mouth end of the tapered ring The upper part is hinged with a movable half-slot that can be buckled together with the fixed half-slot, and a half-ring groove is fixed on the inner wall of the lower part of the large mouth of the tapered ring, and the outer ring and the half-ring groove are inserted in the half-ring groove. Assembled with the half-ring plate that fits the inner ring and the outer periphery of the prefabricated optical cable, the lower half cavity formed by the half-ring plate and the lower part of the tapered ring is provided with a lower semi-elastic cone plug, and the top surface of the lower half elastic cone plug is provided with a The lower half of the prefabricated optical cable fits the lower half of the channel. The upper half of the upper cavity of the tapered ring is provided with an upper half of the elastic cone corresponding to the lower half of the elastic cone. The upper half of the groove is clamped, the hinged end of the movable half groove is fixedly provided with a baffle that is tightly fitted with the end of the upper half of the elastic cone plug, and the fixed half of the groove or the movable half of the groove is provided with an elastic seal for both of them. The elastic strip is also provided with a locking mechanism that locks the two together, and the upper part of the large mouth of the tapered ring or the corresponding rear end of the movable half groove is also provided with an elastic strip that makes the two elastically sealed and compressed.

The prefabricated optical cable perforation assistant can guide the prefabricated optical cable through the clamping sheath structure, can protect the prefabricated optical cable from damage and pollution, is easy to operate, and can assist the prefabricated optical cable to turn.

The clamping sheath structure mainly includes a tapered ring for supporting connection, and the axis of the tapered ring is arranged transversely. The tapered ring has one end with a larger mouth and one end with a smaller mouth. The prefabricated optical cable is inserted from the smaller end of the mouth, and inserted into the larger end of the mouth for containing the scattered prefabricated optical cable inner core. or wire core. For the convenience of description, the larger end of the tapered ring mouth is called the big mouth end, the smaller end of the tapered ring mouth is called the small mouth end, and the direction of the big mouth end is called the front, and the direction of the small mouth end is called the front. for later. The larger end of the tapered ring mouth, that is, the large mouth end is divided into two parts, the upper part and the lower part. The lower part of the large port is fixed with a fixed half-groove with the mouth upwards, and the fixed half-groove is extended forward from the big mouth end, so that the tapered ring and the fixed half-groove are fixedly connected as an integral structure, and the inner cavity of the tapered ring is connected with the fixed half-groove. The inner cavity of the groove is connected as a whole. The upper part of the big mouth end is hinged with a movable half groove, and the movable half groove is correspondingly arranged with the fixed half groove. When the movable half-groove swings from top to bottom onto the fixed half-groove, the notch part of the movable half-groove and the notch part of the fixed half-groove are buckled together correspondingly, and the inner cavity of the movable half-groove is connected with the inner cavity of the fixed half-groove together as a The "main cavity" containing the inner core of the prefabricated optical cable is connected with the inner cavity of the tapered ring to form a "full cavity". At this moment, the tapered ring, the fixed half groove and the movable half groove form a "combined cylinder" containing the above-mentioned "full cavity" and only one small mouth end of the tapered ring as an outlet. A locking mechanism is provided between the movable half-slot and the fixed half-slot, and the function of the locking mechanism is to lock and position the two when they are fastened together, that is, to keep the "combined barrel" state. There is an elastic strip on the movable half notch or the fixed half notch, when the movable half notch is fastened to the fixed half notch and locked by the locking mechanism, the movable half notch and the fixed half notch will pass through The elastic strips are elastically sealed together. The inner cavity wall of the tapered ring is connected with the fixed half-groove inner cavity, that is, the inner cavity wall of the lower part of the large mouth end of the tapered ring is provided with a half-ring groove, and a half-ring plate is clamped in the half-ring groove. The half-ring plate is semi-circular, the outer ring of the half-ring plate fits with the half-ring groove, and the inner ring of the half-ring plate fits with the outer periphery of the prefabricated optical cable. The lower part of the inner chamber of the tapered ring, that is, the inner chamber corresponding to the half-ring plate, is provided with a lower semi-elastic taper plug, which is in a semi-conical shape matched with the lower half-tapered inner chamber of the tapered ring. The top surface of the lower half of the elastic cone plug, that is, the outer wall adjacent to the prefabricated optical cable, is provided with a lower half of the clamping channel. The lower half of the clamping channel is generally set in a semi-cylindrical shape, and its diameter is slightly smaller than the outer diameter of the prefabricated optical cable, so the lower half of the clamping channel has the function of elastically clamping or clamping the prefabricated optical cable. Because the half-ring groove and the half-ring plate are located at the big mouth end of the tapered ring, they have the function of limiting the lower semi-elastic cone plug, preventing the lower half-elastic cone plug from sliding out of the big mouth end and pressing the lower half elastic cone plug to the small mouth end. . The upper part of the inner cavity of the tapered ring is provided with an upper half elastic cone plug, and the upper half elastic cone plug and the lower half elastic cone plug are arranged correspondingly up and down. The upper half of the elastic cone plug is in the shape of a semi-cone matching the upper half of the tapered inner cavity of the tapered ring, and the bottom surface of the upper half of the elastic cone plug is provided with an upper half of the channel matching the outer periphery of the prefabricated optical cable. The upper half of the channel is generally set in a semi-cylindrical shape, and its diameter is slightly smaller than the outer diameter of the prefabricated optical cable. Therefore, the upper half of the channel has the function of elastically clamping or clamping the prefabricated optical cable. Because the upper half of the elastic cone plug and the lower half of the elastic cone plug are correspondingly wrapped around the outer circumference of the prefabricated optical cable, for the convenience of description, the two are collectively referred to as the total cone plug. Obviously, the total cone plug is a cone matching the inner cavity of the tapered ring. shape. A baffle is fixed at the hinged end of the movable half-slot, and the inner side of the baffle is the inner cavity of the movable half-slot. When the movable half-groove and the fixed half-groove are fastened and locked together, the baffle plate and the front end of the upper half elastic cone plug are press fit. In this way, not only can the upper half of the elastic cone plug be elastically sealed and pressed against the inner wall of the tapered ring and the outer periphery of the prefabricated optical cable under the extrusion of the baffle plate, but also the upper half of the elastic cone plug can be elastically sealed and pressed against the lower half of the elastic cone plug. , so that the lower half of the elastic cone plug is elastically sealed and pressed against the inner wall of the tapered ring and the outer periphery of the prefabricated optical cable, and the hinged end of the movable half groove is connected to the upper half of the elastic cone plug, that is, the hinged end of the movable half groove is connected to the tapered The elastic sealing of the large mouth end of the ring ensures that the "main cavity" containing the inner core of the prefabricated optical cable is isolated from the outside world, and can protect the perforation of the prefabricated optical cable from damage and pollution.

The use process of this prefabricated optical cable perforation aid is: when it is necessary to perforate the prefabricated optical cable, that is, when passing through walls, pipes or wire slots, etc., the first step is to unlock the locking mechanism, open the movable half slot and sequentially Take out the upper half of the elastic cone plug, the half ring plate and the lower half of the elastic cone plug, and then insert the head of the prefabricated optical cable, that is, the inner core of the prefabricated optical cable, into the "main cavity" through the small opening of the tapered ring, and then insert the lower half of the elastic plug Insert the half-ring plate into the half-ring groove to compress the lower semi-elastic taper plug, then put the upper half-elastic taper plug into the upper part of the taper ring inner cavity, and place the movable half-slot Fasten to the fixed half groove so that the total cone plug elastically seals the conical ring, prefabricated optical cable and movable half groove at the same time and locks it with a locking mechanism. The second step is to send the "combined barrel" into the wall hole, pipe or wire groove, etc. In the hole, guide the subsequent optical cable to penetrate the above hole, hold the "combination barrel" and pull it when the "combination barrel" is exposed to the hole, and the prefabricated cable can be perforated. The operation is very simple. After the perforation is completed, when it is necessary to debug the inner core of the prefabricated optical cable, reverse the above first step to remove the "combination barrel" from the prefabricated optical cable.

This prefabricated optical cable perforation aid can not only protect the inner core of the prefabricated optical cable, but also resist stepping and dust, and because the total cone plug is elastically pressed together with the prefabricated optical cable and the tapered ring, during the perforation process, it is also The prefabricated optical cable can be pulled by this prefabricated optical cable perforation assistant. Under the dual action of the elastic compression of the total cone plug and the tapered structure of the tapered ring and the total cone plug, the prefabricated optical cable will not slip relative to the total cone plug, And the more you can only pull the "combination barrel", the tighter the prefabricated optical cable fits the tapered ring through the total taper plug, which effectively solves the problem of not being afraid or difficult to pull the prefabricated optical cable during construction and perforation.

As an implementation, the locking mechanism includes at least one positioning through hole arranged in the fixed half-notch part, the movable half-notch part is fixed with an inserting rod that fits into the positioning through hole, and the end of the inserting rod is fixed at There is a wedge-shaped block snap fit with the end face of the positioning through hole.

The locking mechanism is mainly composed of three parts, namely the positioning through hole, the insertion rod and the wedge block, wherein the wedge block is fixed on one end of the insertion rod, the other end of the insertion rod is fixed on the movable half notch, and the positioning through hole is set on The fixed half notch corresponding to the plunger. For the convenience of description, the end of the positioning through hole close to the movable half-slot is called the proximal end, and the other end, that is, the end away from the movable half-slot is called the far end. When the movable half-slot is fastened to the fixed half-slot, the narrow end of the wedge-shaped block at the end of the insertion rod first enters the positioning through hole, and then the wide end of the wedge-shaped block elastically squeezes and slides into the positioning through-hole with the side wall of the positioning through-hole At this time, the insertion rod is elastically bent along with the elastic extrusion of the wide end of the wedge block and the positioning through hole, and finally the insertion rod is inserted into the positioning through hole. When the mouth of the movable half-slot and the mouth of the fixed half-slot are sealed and pressed together by the elastic strip, the wedge-shaped block just slides out of the far end of the positioning through hole, and at this time the wide end of the wedge-shaped block squeezed by the side wall of the positioning through-hole is lost It will be clamped to the outer end of the positioning through hole under the elastic force of the insertion rod reset, so as to prevent the insertion rod from sliding out of the positioning through hole in reverse, that is, to lock the movable half groove and the fixed half groove . When unlocking is required, the insertion rod and the wedge block can be reversely drawn out from the positioning through hole by only pushing the insertion rod through the wedge block to deform elastically so that the wide end of the wedge block breaks away from the far end of the positioning through hole and enters the positioning through hole. It is to lift the movable half groove from the fixed half groove.

As another implementation, the locking mechanism includes at least one piece of snap button velvet disposed on the fixed half notch, and the movable half notch is fixed with a snap hook that cooperates with the snap button velvet.

The snap button velvet and the snap button pull hook constitute a group of snap buttons that can be hooked and pulled. When the movable half-slot is pushed to be fastened to the fixed half-slot, the draw hook of the snap-in button on the movable half-slot gradually approaches the velvet of the snap-in button on the fixed half-slot. When the movable half-slot and the fixed half-slot are snapped together by the elastic belt elastic seal, the snap-in button hook on the movable half-slot and the snap-in button velvet corresponding hook on the fixed half-slot are pulled together, and the snap-in button is in the In the locked state or the hooked state, the locking of the movable half groove and the fixed half groove has been realized. When it needs to be unlocked, pull or pry the movable half groove from the fixed half groove to separate the pull hook of the snap button and the velvet of the snap button. The half-slot can be lifted up, and the operation is very simple, so that the unlocking of the movable half-slot and the fixed half-slot is realized.

As an improvement, the front ends of the fixed half-groove and the movable half-groove are respectively equipped with bendable toughness strips, and the adjacent sides of the two toughness strips are respectively fixed with snap-fit velvet strips and snap-hook hook strips that can be locked and matched.

After the toughness strips are installed at the front ends of the fixed half-slots and movable half-slots, the corresponding fixed half-slots or movable half-slots can be pulled or held by the toughness strips, especially when unlocking the fixed half-slots and movable half-slots, no auxiliary tools are needed. To pry it open, just pull the two flexible strips in opposite directions, which is very convenient to operate. On the corresponding adjacent side surfaces of the two toughness strips, one is fixedly provided with the velvet strip of the mother-of-child button, and the other is fixedly provided with the hook strip of the mother-of-child button, and the velvet strip of the mother-of-child button and the hook strip of the mother-of-child button are correspondingly hooked and pulled together. Therefore, when the two toughness strips are locked together through the corresponding buckle velvet strips and hook strips, the "combination barrel" is equivalent to adding a flexible extension part that can bend at the front. Because the diameter or thickness of the extension part is obviously smaller than the thickness of the "combination tube", the extension part can play a role in guiding the perforation of the prefabricated optical cable, and it is easier to penetrate into the thinner tube that is equivalent to the thickness of the "combination tube". In the hole, it helps to improve the perforation efficiency. When the extension passes through the other end of the hole, the extension can be pulled to play the role of pulling the "combination barrel" and the prefabricated optical cable, which is very convenient.

As an improvement, the front part of any one of the two toughness strips and the middle front part of the other one are locked and matched in the same direction through the above-mentioned mother-in-law button velvet strip and the mother-in-law button hook strip, and the remaining parts of the two are separated to form the two toughness strips. A curved ligament.

Because the two toughness strips are not locked together correspondingly, but the front part of one toughness strip is locked in the same direction as the middle front part of the other and the rest is spaced apart, so the two toughness strips after locking must be An oblique setting, that is, the flexure ligament formed by the lock is oblique or curved. This arrangement can penetrate or pass through non-linear holes, that is, curved or curved holes under the guidance of the curved structure of the curved ligament, which greatly reduces the construction difficulty and improves the construction efficiency.

As an improvement, the front part of any one of the two toughness strips and the front part of the other one are locked and matched in reverse through the above-mentioned mother-in-law button velvet strip and the mother-in-law button hook strip, and the remaining parts of the two are separated so that the two toughness strips form a annular ligament.

Because the front parts of the two toughness strips are not locked together corresponding to the buckle in the same direction, and are locked together by the reverse buckle, it is inevitable that the front and rear parts of the two toughness strips are set separately, so that The two tough strips form an annular ligament arranged in a ring. Through the annular ligament, it can be used as a handle for pulling the "combined barrel" or prefabricated optical cable, which greatly improves the convenience of pulling the "combined barrel" or prefabricated optical cable, and is especially suitable for use when two tough strips pass through the hole.

As an implementation, the front of the fixed half groove and the movable half groove are respectively provided with a fixed cavity, the front and side of the fixed cavity are respectively provided with a front opening and a side opening, and the rear end of the tough strip is fixed with a front opening and a side opening. Only through the stop of the side opening.

Because the stopper at the rear end of the toughness strip can only pass through the side opening but not the front opening, and the toughness strip can pass through both the side opening and the side opening, so when inserting the front end of the toughness strip along the side opening, the fixing cavity, and the front opening in sequence , the stopper will be stuck in the fixed cavity by the front opening as the tough bar enters the fixed cavity through the side opening, so that the tough bar is installed on the movable half groove or the fixed half groove front. When it needs to be replaced or disassembled, just drag the flexible strip out through the fixing cavity, and the operation is very simple.

To sum up, the prefabricated optical cable perforation assistant with this structure has a reasonable structure, can guide the perforation of the prefabricated optical cable, can protect the prefabricated optical cable from damage and pollution in the perforation, is easy to operate, and can guide the prefabricated optical cable to perforate and turn, which is helpful Improve work efficiency.

Description of drawings

The present invention is described in further detail in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of parts assembly structure of the present invention;

Fig. 3 is the structural representation of the present invention after only assembling the elastic cone plug and the half-ring plate;

Fig. 4 is a structural schematic diagram of the opening state after the prefabricated optical cable is inserted into the present invention;

Fig. 5 is a schematic structural view of the present invention in a closed state after the prefabricated optical cable is inserted and the flexible strip extends linearly;

Fig. 6 is a schematic diagram of the structure of the closed state and the bending ligament after the prefabricated optical cable is inserted in the present invention;

Fig. 7 is a schematic structural view of the annular ligament in the closed state after the prefabricated optical cable is inserted into the present invention;

Fig. 8 is a schematic diagram of the cooperation structure of the wedge block and the positioning through hole;

Fig. 9 is a schematic diagram of the cooperation structure of the fixed cavity and the stopper.

Detailed ways

As shown in the figure, the prefabricated optical cable perforation aid includes a tapered ring 1 arranged transversely on the axis. A movable half-slot 3 that can be snapped together with the fixed half-slot. A half-ring groove 4 is fixedly provided on the inner cavity wall of the lower part of the large mouth end of the tapered ring, and a half-ring plate 5 is inserted in the half-ring groove to fit the outer ring and the half-ring groove to match the inner ring and the outer periphery of the prefabricated optical cable. A lower semi-elastic cone plug 6 is provided in the lower half cavity formed by the half-ring plate and the lower part of the tapered ring, and a lower half clamping channel 7 matching the lower half of the prefabricated optical cable is provided on the top surface of the lower half elastic cone plug. The upper half cavity of the upper part of the tapered ring is provided with an upper half elastic cone plug 8 corresponding to the lower half elastic cone plug, and an upper half clamping channel 9 matched with the upper half circumference of the prefabricated optical cable is provided on the bottom surface of the upper half elastic cone plug. The hinged end of the movable half groove is fixedly provided with a baffle plate 10 which is press fit with the end of the upper half elastic cone plug. The fixed half-notch part or the movable half-notch part is provided with an elastic strip 11 that makes the two elastically sealed and compressed. It is also provided with a locking mechanism that locks the two together. The upper part of the large mouth of the tapered ring or the movable half-slot corresponds The rear end is also provided with an elastic strip that makes the two elastically sealed and compressed.

In the prefabricated optical cable hole assisting device, the tapered ring plays a role of supporting connection, and the axis of the tapered ring is arranged transversely. The tapered ring has one end with a larger mouth and one end with a smaller mouth. The prefabricated optical cable 26 is inserted from the smaller end of the mouth, and inserted into the larger end of the mouth for containing the scattered prefabricated optical cable. Core 27 or wire core. For the convenience of description, the larger end of the tapered ring mouth is called the big mouth end, the smaller end of the tapered ring mouth is called the small mouth end, and the direction of the big mouth end is called the front, and the direction of the small mouth end is called the front. for later. The larger end of the tapered ring mouth, that is, the large mouth end is divided into two parts, the upper part and the lower part. The lower part of the large port is fixed with a fixed half-groove with the mouth upwards, and the fixed half-groove is extended forward from the big mouth end, so that the tapered ring and the fixed half-groove are fixedly connected as an integral structure, and the inner cavity of the tapered ring is connected with the fixed half-groove. The inner cavity of the groove is connected as a whole. The upper part of the big mouth end is hinged with a movable half groove, and the movable half groove is correspondingly arranged with the fixed half groove. When the movable half-groove swings from top to bottom onto the fixed half-groove, the notch part of the movable half-groove and the notch part of the fixed half-groove are buckled together correspondingly, and the inner cavity of the movable half-groove is connected with the inner cavity of the fixed half-groove together as a The "main cavity" containing the inner core of the prefabricated optical cable is connected with the inner cavity of the tapered ring to form a "full cavity". At this moment, the tapered ring, the fixed half groove and the movable half groove form a "combined cylinder" containing the above-mentioned "full cavity" and only one small mouth end of the tapered ring as an outlet. A locking mechanism is provided between the movable half-slot and the fixed half-slot, and the function of the locking mechanism is to lock and position the two when they are fastened together, that is, to keep the "combined barrel" state. There is an elastic strip on the movable half notch or the fixed half notch, when the movable half notch is fastened to the fixed half notch and locked by the locking mechanism, the movable half notch and the fixed half notch will pass through The elastic strips are elastically sealed together. The inner cavity wall of the tapered ring is connected with the fixed half-groove inner cavity, that is, the inner cavity wall of the lower part of the large mouth end of the tapered ring is provided with a half-ring groove, and a half-ring plate is clamped in the half-ring groove. The half-ring plate is semi-circular, the outer ring of the half-ring plate fits with the half-ring groove, and the inner ring of the half-ring plate fits with the outer periphery of the prefabricated optical cable. The lower part of the inner chamber of the tapered ring, that is, the inner chamber corresponding to the half-ring plate, is provided with a lower semi-elastic taper plug, which is in a semi-conical shape matched with the lower half-tapered inner chamber of the tapered ring. The top surface of the lower half of the elastic cone plug, that is, the outer wall adjacent to the prefabricated optical cable, is provided with a lower half of the clamping channel. The lower half of the clamping channel is generally set in a semi-cylindrical shape, and its diameter is slightly smaller than the outer diameter of the prefabricated optical cable, so the lower half of the clamping channel has the function of elastically clamping or clamping the prefabricated optical cable. Because the half-ring groove and the half-ring plate are located at the big mouth end of the tapered ring, they have the function of limiting the lower semi-elastic cone plug, preventing the lower half-elastic cone plug from sliding out of the big mouth end and pressing the lower half elastic cone plug to the small mouth end. . The upper part of the inner cavity of the tapered ring is provided with an upper half elastic cone plug, and the upper half elastic cone plug and the lower half elastic cone plug are arranged correspondingly up and down. The upper half of the elastic cone plug is in the shape of a semi-cone matching the upper half of the tapered inner cavity of the tapered ring, and the bottom surface of the upper half of the elastic cone plug is provided with an upper half of the channel matching the outer periphery of the prefabricated optical cable. The upper half of the channel is generally set in a semi-cylindrical shape, and its diameter is slightly smaller than the outer diameter of the prefabricated optical cable. Therefore, the upper half of the channel has the function of elastically clamping or clamping the prefabricated optical cable. Because the upper half of the elastic cone plug and the lower half of the elastic cone plug are correspondingly wrapped around the outer circumference of the prefabricated optical cable, for the convenience of description, the two are collectively referred to as the total cone plug. Obviously, the total cone plug is a cone matching the inner cavity of the tapered ring. shape. A baffle is fixed at the hinged end of the movable half-slot, and the inner side of the baffle is the inner cavity of the movable half-slot. When the movable half-groove and the fixed half-groove are fastened and locked together, the baffle plate and the front end of the upper half elastic cone plug are press fit. In this way, not only can the upper half of the elastic cone plug be elastically sealed and pressed against the inner wall of the tapered ring and the outer periphery of the prefabricated optical cable under the extrusion of the baffle plate, but also the upper half of the elastic cone plug can be elastically sealed and pressed against the lower half of the elastic cone plug. , so that the lower half of the elastic cone plug is elastically sealed and pressed against the inner wall of the tapered ring and the outer periphery of the prefabricated optical cable, and the hinged end of the movable half groove is connected to the upper half of the elastic cone plug, that is, the hinged end of the movable half groove is connected to the tapered The elastic sealing of the large mouth end of the ring ensures that the "main cavity" containing the inner core of the prefabricated optical cable is isolated from the outside world, and can protect the perforation of the prefabricated optical cable from damage and pollution.

The use process of this prefabricated optical cable perforation aid is: when it is necessary to perforate the prefabricated optical cable, that is, when passing through walls, pipes or wire slots, etc., the first step is to unlock the locking mechanism, open the movable half slot and sequentially Take out the upper half of the elastic cone plug, the half ring plate and the lower half of the elastic cone plug, and then insert the head of the prefabricated optical cable, that is, the inner core of the prefabricated optical cable, into the "main cavity" through the small opening of the tapered ring, and then insert the lower half of the elastic plug Insert the half-ring plate into the half-ring groove to compress the lower semi-elastic taper plug, then put the upper half-elastic taper plug into the upper part of the taper ring inner cavity, and place the movable half-slot Fasten to the fixed half groove so that the total cone plug elastically seals the conical ring, prefabricated optical cable and movable half groove at the same time and locks it with a locking mechanism. The second step is to send the "combined barrel" into the wall hole, pipe or wire groove, etc. In the hole, guide the subsequent optical cable to penetrate the above hole, hold the "combination barrel" and pull it when the "combination barrel" is exposed to the hole, and the prefabricated cable can be perforated. The operation is very simple. After the perforation is completed, when it is necessary to debug the inner core of the prefabricated optical cable, reverse the above first step to remove the "combination barrel" from the prefabricated optical cable.

This prefabricated optical cable perforation aid can not only protect the inner core of the prefabricated optical cable, but also resist stepping and dust, and because the total cone plug is elastically pressed together with the prefabricated optical cable and the tapered ring, during the perforation process, it is also The prefabricated optical cable can be pulled by this prefabricated optical cable perforation assistant. Under the dual action of the elastic compression of the total cone plug and the tapered structure of the tapered ring and the total cone plug, the prefabricated optical cable will not slip relative to the total cone plug, And the more you can only pull the "combination barrel", the tighter the prefabricated optical cable fits the tapered ring through the total taper plug, which effectively solves the problem of not being afraid or difficult to pull the prefabricated optical cable during construction and perforation.

In this embodiment, the locking mechanism includes at least one snap-button velvet 15 disposed on the fixed half notch, and the snap-in snap hook 16 that cooperates with the snap-button velvet is fixed on the movable half-notch. . The snap button velvet and the snap button pull hook constitute a group of snap buttons that can be hooked and pulled. When the movable half-slot is pushed to be fastened to the fixed half-slot, the draw hook of the snap-in button on the movable half-slot gradually approaches the velvet of the snap-in button on the fixed half-slot. When the movable half-slot and the fixed half-slot are snapped together by the elastic belt elastic seal, the snap-in button hook on the movable half-slot and the snap-in button velvet corresponding hook on the fixed half-slot are pulled together, and the snap-in button is in the In the locked state or the hooked state, the locking of the movable half groove and the fixed half groove has been realized. When it needs to be unlocked, pull or pry the movable half groove from the fixed half groove to separate the pull hook of the snap button and the velvet of the snap button. The half-slot can be lifted up, and the operation is very simple, so that the unlocking of the movable half-slot and the fixed half-slot is realized.

As shown in Figure 8, in actual production, the locking mechanism can also adopt the following structure: it includes at least one positioning through hole 12 located at the mouth of the fixed half slot 2, and the movable half slot is fixedly provided with a positioning hole inserted into the positioning through hole. Assembling the inserted rod 13, the end of the inserted rod is fixed with a wedge-shaped block 14 snap-fitted with the end face of the positioning through hole. The locking mechanism is mainly composed of three parts, namely the positioning through hole, the insertion rod and the wedge block, wherein the wedge block is fixed on one end of the insertion rod, the other end of the insertion rod is fixed on the movable half notch, and the positioning through hole is set on The fixed half notch corresponding to the plunger. For the convenience of description, the end of the positioning through hole close to the movable half-slot is called the proximal end, and the other end, that is, the end away from the movable half-slot is called the far end. When the movable half-slot is fastened to the fixed half-slot, the narrow end of the wedge-shaped block at the end of the insertion rod first enters the positioning through hole, and then the wide end of the wedge-shaped block elastically squeezes and slides into the positioning through-hole with the side wall of the positioning through-hole At this time, the insertion rod is elastically bent along with the elastic extrusion of the wide end of the wedge block and the positioning through hole, and finally the insertion rod is inserted into the positioning through hole. When the mouth of the movable half-slot and the mouth of the fixed half-slot are sealed and pressed together by the elastic strip, the wedge-shaped block just slides out of the far end of the positioning through hole, and at this time the wide end of the wedge-shaped block squeezed by the side wall of the positioning through-hole is lost It will be clamped to the outer end of the positioning through hole under the elastic force of the insertion rod reset, so as to prevent the insertion rod from sliding out of the positioning through hole in reverse, that is, to lock the movable half groove and the fixed half groove . When unlocking is required, the insertion rod and the wedge block can be reversely drawn out from the positioning through hole by only pushing the insertion rod through the wedge block to deform elastically so that the wide end of the wedge block breaks away from the far end of the positioning through hole and enters the positioning through hole. It is to lift the movable half groove from the fixed half groove.

The front ends of the fixed half-groove 2 and the movable half-groove 3 are respectively equipped with bendable toughness strips 17, and the adjacent sides of the two toughness strips are respectively fixed with snap-fit velvet strips 18 and snap-fit hook strips 19. . After the toughness strips are installed at the front ends of the fixed half-slots and movable half-slots, the corresponding fixed half-slots or movable half-slots can be pulled or held by the toughness strips, especially when unlocking the fixed half-slots and movable half-slots, no auxiliary tools are needed. To pry it open, just pull the two flexible strips in opposite directions, which is very convenient to operate. On the corresponding adjacent side surfaces of the two toughness strips, one is fixedly provided with the velvet strip of the mother-of-child button, and the other is fixedly provided with the hook strip of the mother-of-child button, and the velvet strip of the mother-of-child button and the hook strip of the mother-of-child button are correspondingly hooked and pulled together. Therefore, when the two toughness strips are locked together through the corresponding buckle velvet strips and hook strips, the "combination barrel" is equivalent to adding a flexible extension part that can bend at the front. Because the diameter or thickness of the extension part is obviously smaller than the thickness of the "combination tube", the extension part can play a role in guiding the perforation of the prefabricated optical cable, and it is easier to penetrate into the thinner tube that is equivalent to the thickness of the "combination tube". In the hole, it helps to improve the perforation efficiency. When the extension passes through the other end of the hole, the extension can be pulled to play the role of pulling the "combination barrel" and the prefabricated optical cable, which is very convenient.

In this embodiment, the front part of any one of the two toughness strips and the middle front part of the other strip are locked and fitted in the same direction through the above-mentioned mother-in-law button velvet strip and the mother-in-law button hook strip, and the remaining parts of the two are separated so that the two The ductile strips form a curved ligament 20 . Because the two toughness strips are not locked together correspondingly, but the front part of one toughness strip is locked in the same direction as the middle front part of the other and the rest is spaced apart, so the two toughness strips after locking must be An oblique setting, that is, the flexure ligament formed by the lock is oblique or curved. This arrangement can penetrate or pass through non-linear holes, that is, curved or curved holes under the guidance of the curved structure of the curved ligament, which greatly reduces the construction difficulty and improves the construction efficiency.

After the tenacity strip 17 is perforated, the front portion of any one of the two tenacity strips and the front portion of the other are reversely locked and matched by the above-mentioned mother-in-law button velvet strip and the mother-in-law button hook strip, and the remaining parts of the two are all separated to make the two The ductile strips form an annular ligament 21 . Because the front parts of the two toughness strips are not locked together corresponding to the buckle in the same direction, and are locked together by the reverse buckle, it is inevitable that the front and rear parts of the two toughness strips are set separately, so that The two tough strips form an annular ligament arranged in a ring. Through the annular ligament, it can be used as a handle for pulling the "combined barrel" or prefabricated optical cable, which greatly improves the convenience of pulling the "combined barrel" or prefabricated optical cable, and is especially suitable for use when two tough strips pass through the hole.

As shown in Figure 9, the front part of the fixed half groove and the movable half groove are respectively provided with a fixed chamber 22, the front part and the side part of the fixed chamber are respectively provided with a front opening 23 and a side opening 24, and the rear end of the tough bar is fixedly provided with a front opening and a side opening. Only the stopper 25 of the side opening can pass through the side opening. Because the stopper at the rear end of the toughness strip can only pass through the side opening but not the front opening, and the toughness strip can pass through both the side opening and the side opening, so when inserting the front end of the toughness strip along the side opening, the fixing cavity, and the front opening in sequence , the stopper will be stuck in the fixed cavity by the front opening as the tough bar enters the fixed cavity through the side opening, so that the tough bar is installed on the movable half groove or the fixed half groove front. When it needs to be replaced or disassembled, just drag the flexible strip out through the fixing cavity, and the operation is very simple.

Claims (1)

1. The prefabricated optical cable perforation aid is characterized in that it includes a tapered ring (1) arranged horizontally on the axis, and the lower part of the large mouth end of the tapered ring (1) is fixed with a corresponding fixed half groove (2) extending laterally. The upper part of the large mouth end of the ring (1) is hinged with a movable half groove (3) that can be buckled together with the fixed half groove (2), and a half ring is fixed on the inner cavity wall of the lower part of the tapered ring (1). The groove (4), the half-ring groove (4) is inserted with the outer ring and the half-ring groove (4), and the half-ring plate (5) and the half-ring plate (5) are fitted with the inner ring and the outer circumference of the prefabricated optical cable. The lower half of the cavity surrounded by the lower part of the tapered ring (1) is provided with a lower semi-elastic cone plug (6), and the top surface of the lower half of the elastic cone plug (6) is provided with a lower half of the channel that matches the lower half of the prefabricated optical cable ( 7), the upper half cavity on the upper part of the tapered ring (1) is provided with the upper half elastic cone plug (8) corresponding to the lower half elastic cone plug, and the bottom surface of the upper half elastic cone plug (8) is provided with the upper half of the prefabricated optical cable. The upper half clamping channel (9) with a half-circle fit, the hinged end of the movable half groove (3) is fixed with a baffle (10) that is tightly fitted with the end of the upper half elastic cone plug (8), and the mouth of the fixed half groove (2) There is an elastic strip (11) at the mouth of the movable half groove (3) to make the two elastically sealed and compressed, and a locking mechanism to lock the two together. The upper part of the large mouth end of the tapered ring (1) Or the corresponding rear end of the movable half-groove (3) is also provided with an elastic strip that elastically seals and compresses the two; the locking mechanism includes at least one positioning through hole (12) at the mouth of the fixed half-groove (2), The mouth of the movable half-groove (3) is fixed with an insertion rod (13) that fits into the positioning through hole (12), and the end of the insertion rod (13) is fixed with a wedge-shaped wedge that fits into the end face of the positioning through hole (12). block (14); the front ends of the fixed half-slot (2) and the movable half-slot (3) are respectively equipped with bendable toughness strips (17), and the adjacent sides of the two toughness strips (17) are respectively fixed with locking Cooperating mother-in-law button velvet strip (18) and mother-in-law button hook strip (19); the front part of any one in the two toughness bars (17) and the middle front part of the other pass through the above-mentioned mother-in-law button velvet strip (18) and the child The hook strips (19) of the female buckle are locked and matched in the same direction and the remaining parts of the two are separated so that the two tough strips form a curved ligament (20).