CN214506430U - Connecting device for silicon core pipe - Google Patents

Abstract

The utility model discloses a silicon core pipe connecting device, which comprises an intermediate connecting pipe matched with a silicon core pipe, wherein both ends of the intermediate connecting pipe are provided with first threads, the first threads at both ends of the intermediate connecting pipe are connected with first nuts, the first nuts are sleeved on the silicon core pipe, the first nuts are also provided with extension caps, and a rubber gasket matched with the inner cavity of the extension cap is arranged between the extension caps and the silicon core pipe; a plurality of deformation grooves are formed in one end, far away from the first nut, of the extension cap, second threads are formed in one end, close to the first nut, of the extension cap, a second nut and a fastening ring are sleeved on the extension cap, and the second nut is located between the fastening ring and the first nut; the utility model discloses a middle connecting pipe, first nut and the extension cap that set up can be in the same place the silicon core pipe connection, and simple structure, it is swift convenient to continue, has guaranteed the follow-up reliability of blowing the cable.

Description

Connecting device for silicon core pipe

Technical Field

The utility model belongs to the technical field of the pipe joint design, specifically be a be used for silicon core union coupling device.

Background

The silicon core pipe is a novel composite pipeline with the inner wall provided with the colloidal silica solid lubricant, has good sealing performance, chemical corrosion resistance and low engineering cost, and is widely applied to optical cable communication network systems of highways, railways and the like. The HDPE silicon core pipe is a novel composite pipeline with a silica gel solid lubricant on the inner wall, and is called a silicon pipe for short. The composite material is extruded and compounded by three plastic extruders synchronously, the main raw material is high-density polyethylene, and the core layer is solid lubricant silica gel with the lowest friction coefficient. The method is widely applied to optical cable communication network systems.

The connection point of the silicon core pipe is the key point influencing the smoothness of the subsequent cable blowing, so that the silicon core pipe is not allowed to have a breakpoint in the laying process in principle, thereby causing the connection condition. However, in the actual laying process, if it is inevitable, the quality of the splice must be controlled.

Disclosure of Invention

The utility model aims at the problem that prior art exists, provide one kind and be used for silicon core pipe connecting device, solved current silicon core pipe and needed the problem that the breakpoint continues at the laying process.

In order to achieve the above object, the utility model adopts the following technical scheme: a connecting device for a silicon core pipe comprises a middle connecting pipe matched with the silicon core pipe, wherein first threads are arranged at two ends of the middle connecting pipe, first screw caps are connected on the first threads at two ends of the middle connecting pipe, the first screw caps are sleeved on the silicon core pipe, an extension cap is further arranged on each first screw cap, and a rubber gasket matched with an inner cavity of the extension cap is arranged between each extension cap and the silicon core pipe; extend the cap and keep away from the several deformation groove has been seted up to the one end of first nut, it is close to extend the cap the one end of first nut is equipped with the second screw thread, the cover is equipped with second nut and tighrening ring on extending the cap, the second nut is located the tighrening ring with between the first nut.

The utility model connects two silicon core pipes which need to be connected together through the arranged middle connecting pipe; the silicon core pipe is fixed with the middle connecting pipe through the matching of the arranged first screw cap and the extending cap; the middle connecting pipe and the silicon core pipes are sealed through the arranged rubber gasket, so that air leakage or water inflow at the connecting part of the two silicon core pipes is prevented; the first screw cap and the extension cap can be fixed with the middle connecting pipe through the matching of the arranged first screw thread and the first screw cap; the fastening ring can be pushed to move by the matching of the arranged second screw cap and the second screw thread, so that the extension cap is fixed with the silicon core tube; the end, far away from the first nut, of the extension cap can be deformed through the arranged deformation groove, and then the end, far away from the first nut, of the extension cap can be fixed with the silicon core tube under the action of external force.

Furthermore, the outer diameter of one end, far away from the first screw cap, of the extension cap is larger than that of the other end of the extension cap, so that the extension cap is extruded when the fastening ring moves towards the end, provided with the deformation groove, of the extension cap, the inner diameter of the extension cap is reduced, and the extension cap is tightly fixed on the silicon core tube.

Furthermore, the slotting direction of the deformation groove is the axial direction of the extension cap, so that one end of the extension cap, which is provided with the deformation groove, can be extruded by the fastening ring to generate deformation, and then is fixed with the silicon core tube.

Specifically, the rubber gasket comprises a rubber sleeve and a rubber ring, and the rubber ring is positioned on the outer wall of one end of the rubber sleeve; the rubber sleeve is positioned between the silicon core pipe and the extension cap, and the rubber ring is positioned between the middle connecting pipe and the extension cap; the rubber sleeve and the rubber ring are integrally formed; the rubber circle can fill up middle connecting pipe and the gap between the extension cap, avoid the external substance to enter into the silicon core intraductally through the threaded connection department of middle connecting pipe and first nut, the rubber sleeve can be filled up the gap between extension cap and the silicon core pipe, make the fixing that the extension cap can be better on the silicon core pipe, can prevent simultaneously that the external substance from entering into the silicon core intraductally through the junction of extension cap and silicon core pipe, rubber circle and rubber sleeve integrated into one piece, can increase the gas tightness of silicon core union coupling department, it is intraductal to make external substance can't enter into the silicon core from the silicon core union coupling, thereby equipment in the better protection silicon core pipe.

Furthermore, all be equipped with anti-skidding line on first nut with the second nut, first nut and second nut skid in the time of avoiding the installation for the installation rate.

Further, extend the cap with first nut integrated into one piece increases the utility model discloses a life improves the gas tightness of the junction of silicon core pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a middle connecting pipe, first nut and the extension cap that set up can be in the same place the silicon core pipe connection, and simple structure, it is swift convenient to continue, has guaranteed the follow-up reliability of blowing the cable.

(2) The second screw cap and the fastening ring can ensure that the silicon core pipe is connected more firmly, the air tightness is better and the silicon core pipe is not easy to fall off.

Drawings

FIG. 1 is a schematic structural diagram of a silicon core tube connecting device according to this embodiment;

in the figure: 1. a silicon core pipe; 2. a middle connecting pipe; 3. a first nut; 4. an extension cap; 5. a rubber gasket; 501. a rubber sleeve; 502. a rubber ring; 6. a deformation groove; 7. a second nut; 8. and (5) fastening the ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment provides a silicon core tube connecting device, which includes an intermediate connecting tube 2 matched with a silicon core tube 1, wherein both ends of the intermediate connecting tube 2 are provided with first threads, the first threads at both ends of the intermediate connecting tube 2 are connected with first screw caps 3, the first screw caps 3 are sleeved on the silicon core tube 1, the first screw caps 3 are further provided with extension caps 4, and a rubber gasket 5 matched with an inner cavity of the extension caps 4 is arranged between the extension caps 4 and the silicon core tube 1; extend cap 4 and keep away from two deformation grooves 6 have been seted up to the one end of first nut 3, it is close to extend cap 4 the one end of first nut 3 is equipped with the second screw thread, it is equipped with second nut 7 and tighrening ring to extend the cover on cap 4, second nut 7 is located the tighrening ring with between the first nut 3.

The utility model connects two silicon core pipes 1 which need to be connected together through the middle connecting pipe 2; the silicon core tube 1 and the middle connecting tube 2 are fixed together by the matching of the arranged first screw cap 3 and the extending cap 4; the middle connecting pipe 2 and the silicon core pipes 1 are sealed through the arranged rubber gasket 5, so that air leakage or water inflow at the connecting part between the two silicon core pipes 1 is prevented; the first screw cap 3 and the extension cap 4 can be fixed with the middle connecting pipe 2 by the matching of the arranged first screw thread and the first screw cap 3; the fastening ring can be pushed to move by the matching of the arranged second screw cap 7 and the second screw thread, so that the extension cap 4 and the silicon core tube 1 are fixed; the end of the extension cap 4 far away from the first screw cap 3 can be deformed through the deformation groove 6, and then the end of the extension cap 4 far away from the first screw cap 3 can be fixed with the silicon core tube 1 under the action of external force.

Further, the outer diameter of the end, far away from the first nut 3, of the extension cap 4 is greater than the outer diameter of the other end, the outer diameter, far away from the first nut 3, of the extension cap 4 is gradually increased along the direction far away from the first nut 3, the outer diameter, close to the end of the first nut 3, of the extension cap 4 is kept consistent, when the fastening ring moves towards the end, provided with the deformation groove 6, of the extension cap 4, the extension cap 4 is squeezed, the inner diameter of the extension cap 4 is reduced, and the extension cap 4 is tightly fixed on the silicon core tube 1.

Furthermore, the slotting direction of the deformation groove 6 is the axial direction of the extension cap 4, so that one end of the extension cap 4 provided with the deformation groove 6 can be extruded by the fastening ring to generate deformation, and then is fixed with the silicon core tube 1.

Specifically, the rubber gasket 5 comprises a rubber sleeve 501 and a rubber ring 502, and the rubber ring 502 is located on the outer wall of one end of the rubber sleeve 501; the rubber sleeve 501 is positioned between the silicon core tube 1 and the extension cap 4, and the rubber ring 502 is positioned between the middle connecting tube 2 and the extension cap 4; the rubber sleeve 501 and the rubber ring 502 are integrally formed; the rubber ring 502 can fill up the gap between the middle connecting pipe 2 and the extension cap 4, prevent that foreign matters from entering into the silicon core pipe 1 through the threaded connection part of the middle connecting pipe 2 and the first screw cap 3, the rubber sleeve 501 can fill up the gap between the extension cap 4 and the silicon core pipe 1, make the extension cap 4 better fix on the silicon core pipe 1, simultaneously can prevent that foreign matters from entering into the silicon core pipe 1 through the connection part of the extension cap 4 and the silicon core pipe 1, the rubber ring 502 and the rubber sleeve 501 are integrally formed, can increase the air tightness of the connection part of the silicon core pipe 1, make foreign matters unable to enter into the silicon core pipe 1 from the connection part of the silicon core pipe 1, thereby better protecting the equipment in the silicon core pipe 1.

Further, all be equipped with anti-skidding line on first nut 3 with the second nut 7, first nut 3 skids with second nut 7 when avoiding the installation for the installation rate.

Further, extend cap 4 with first nut 3 integrated into one piece increases the utility model discloses a life improves the gas tightness of the junction of silicon core pipe 1.

The installation step: firstly pinching one end of the extension cap 4 provided with the deformation groove 6 to deform the extension cap, sleeving the second screw cap 7 on the extension sleeve, and sleeving the fastening ring on the extension cap 4; sleeving an extension cap 4 on the silicon core pipe 1, and sleeving a rubber gasket 5 on the silicon core pipe 1; inserting the silicon core tube 1 into the middle connecting tube 2, screwing the first screw cap 3 on the first thread of the middle connecting tube 2, and plugging the gap between the silicon core tube 1 and the middle connecting tube 2 by the first screw cap 3 and the extension cap 4 with the rubber ring 502; screwing the second screw cap 7, so that the second screw cap 7 pushes the fastening ring to move in a direction away from the first screw cap 3, and the fastening ring extrudes the extension cap 4, so that the extension cap 4 and the silicon core tube 1 are fixed together; when the break point of the silicon core tube 1 is connected, the connected port needs to be parallel and level and has no burr, and when the silicon core tube 1 is connected, after the silicon core tube 1 is inserted into the middle connecting tube 2, the connected two ends need to be abutted together in the middle connecting tube 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A connecting device for a silicon core pipe is characterized by comprising an intermediate connecting pipe matched with the silicon core pipe, wherein first threads are arranged at two ends of the intermediate connecting pipe, first screw caps are connected to the first threads at two ends of the intermediate connecting pipe, the first screw caps are sleeved on the silicon core pipe, an extension cap is further arranged on each first screw cap, and a rubber gasket matched with the inner cavity of each extension cap is arranged between each extension cap and the silicon core pipe; extend the cap and keep away from the several deformation groove has been seted up to the one end of first nut, it is close to extend the cap the one end of first nut is equipped with the second screw thread, the cover is equipped with second nut and tighrening ring on extending the cap, the second nut is located the tighrening ring with between the first nut.

2. The silicon core tube connecting device as recited in claim 1, wherein an outer diameter of an end of the extension cap remote from the first nut is larger than an outer diameter of the other end.

3. The silicon core tube connecting device as recited in claim 1, wherein the grooving direction of the deformation groove is an axial direction of the extension cap.

4. The silicon core pipe connecting device as recited in claim 1, wherein said rubber gasket comprises a rubber sleeve and a rubber ring, said rubber ring is located on an outer wall of one end of said rubber sleeve; the rubber sleeve is positioned between the silicon core pipe and the extension cap, and the rubber ring is positioned between the middle connecting pipe and the extension cap; the rubber sleeve and the rubber ring are integrally formed.

5. The silicon core tube connecting device as recited in claim 1, wherein the first nut and the second nut are provided with anti-slip threads.

6. The silicon die attachment apparatus of claim 1, wherein the extension cap is integrally formed with the first nut.

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