Buried multi-channel threading pipe for communication

Abstract

The invention relates to the technical field of threading pipes, in particular to a communication buried multichannel threading pipe which comprises two threading pipe bodies which are symmetrically distributed, a first connector is fixed to the end of one threading pipe body, and a second connector is fixed to the end of the other threading pipe body. A plurality of connecting pipes distributed circumferentially are fixed to the side wall of the first connector, a plurality of access grooves distributed circumferentially are formed in the second connector, a first sealing coaming is fixed to the outside of the first connector, a second sealing coaming is fixed to the outside of the second connector, and a limiting ring is fixed to the inner wall of the second sealing coaming. Squeezing plates which are symmetrically distributed are arranged between the limiting ring and the second sealing surrounding plate and connected with a first sealing mechanism and a second sealing mechanism. According to the invention, when the multi-channel threading pipe is connected, double sealing can be carried out on the cable, so that corrosion to the cable due to the fact that underground water or sludge permeates into the access groove is effectively avoided, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of wire threading tubes, in particular to an underground multi-channel wire threading tube for communications. Background Art

[0002] The buried multi-channel wire conduit for communications is a pipeline system specially used for laying underground communication lines. It has multiple channels and can accommodate multiple communication cables at the same time, thus meeting the high-density and multi-line laying requirements in modern communication networks.

[0003] When the buried multi-channel wire threading pipe is not long enough, two or more wire threading pipes need to be connected. In the prior art, two multi-channel wire threading pipes are mostly connected together by flanges. However, the sealing performance of the flange connection alone is not strong. Groundwater or sludge can easily penetrate into the wire threading pipe from the contact position of the wire threading pipe, thereby damaging the cable and reducing the service life of the cable. Summary of the invention

[0004] The object of the present invention is to provide an underground multi-channel wire threading pipe for communication to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A buried multi-channel wire threading tube for communications, comprising two symmetrically distributed wire threading tube bodies, wherein a first connecting head is fixed to the end of one of the wire threading tube bodies, and a second connecting head is fixed to the end of the other wire threading tube body, a plurality of circumferentially distributed connecting tubes are fixed on the side wall of the first connecting head, a plurality of circumferentially distributed access grooves are provided inside the second connecting head, a first sealing enclosure is fixed to the outside of the first connecting head, and a second sealing enclosure is fixed to the outside of the second connecting head, wherein a limiting ring is fixed to the inner wall of the second sealing enclosure, a symmetrically distributed extrusion plate is provided between the limiting ring and the second sealing enclosure, the extrusion plate is connected to a first sealing mechanism and a second sealing mechanism, the first sealing mechanism is used to seal the contact position between the first connecting head and the second connecting head, the second sealing mechanism is used to seal the connection position between the connecting tube and the access groove, and a driving mechanism is provided on the inner side of the second sealing enclosure, the driving mechanism is used to drive the extrusion plate to move relative to each other, thereby driving the first sealing mechanism and the second sealing mechanism to operate.

[0007] Preferably: the first sealing mechanism includes a semicircular sealing plate which is arranged between the limiting ring and the second connecting head and is symmetrically distributed, the inner diameter of the semicircular sealing plate is adapted to the outer diameter of the first connecting head and the second connecting head, and the semicircular sealing plates are fixed with support rods, which pass through the limiting ring and are fixedly connected to the two extrusion plates respectively.

[0008] Preferably: the second sealing mechanism includes a plurality of inflatable sealing rings distributed in a circular pattern, the inflatable sealing rings are respectively arranged inside a plurality of access grooves, the outer wall of the inflatable sealing ring is fixedly connected to the inner wall of the access groove, wherein the inflatable sealing ring is connected to an inflatable component, and when the driving mechanism drives the extrusion plate to move relative to each other, the inflatable component is used to inflate the interior of the inflatable sealing ring.

[0009] Preferably, the inflation component comprises an airbag arranged between the extrusion plate and the limiting ring, the airbag is fixedly connected to the outer wall of the limiting ring, the airbag is connected to a plurality of air pipes, and the air pipes are respectively connected to the plurality of inflation sealing rings.

[0010] Preferably: the driving mechanism includes a sliding rod fixedly connected to the extrusion plate, an elastic member is provided outside the sliding rod, two ends of the elastic member are respectively fixedly connected to the extrusion plate and the second sealing enclosure, an extrusion assembly is provided inside the second sealing enclosure, and the extrusion assembly is used to extrude the sliding rod.

[0011] Preferably: the first sealing enclosure and the second sealing enclosure are fixedly connected by means of bolts and nuts, and through holes are provided inside the first sealing enclosure and the second sealing enclosure for the bolts to pass through, wherein a groove is provided on the side wall of the through hole inside the second sealing enclosure, and the extrusion assembly includes a wedge block arranged inside the groove, the wedge block is slidably connected to the inner wall of the groove, one end of the wedge block is fixedly connected to the sliding rod, and the other end of the wedge block extends into the through hole.

[0012] Preferably: a plurality of limiting holes distributed in a circumference are provided on the side wall of the limiting ring, and limiting rods distributed in a circumference and matched with the limiting holes are fixed on the inner wall of the first sealing enclosure.

[0013] Compared with the prior art, the beneficial effect of the present invention is as follows: when connecting the multi-channel wire threading tubes, the present invention inserts the connecting tube on one of the wire threading tube connectors into the access groove inside the other wire threading tube connector, and at the same time, the bolt passes through the sealing panels on the two connecting heads, and the two sealing panels are connected by means of bolts and nuts. The bolts will squeeze the wedge blocks in the process of passing through the sealing panels, and the wedge blocks drive the squeezing plates to move through the sliding rods. On the one hand, the squeezing plates drive the two semicircular sealing plates to approach each other through the support rods, and seal the contact positions of the two connecting heads through the semicircular sealing plates. On the other hand, the squeezing plates squeeze the airbags, so that the gas inside the airbags enters the inflatable sealing ring through the air pipe, and the inflatable sealing ring expands and fits tightly against the outer wall of the connecting tube, thereby sealing the connection position between the connecting tube and the access groove, achieving a double sealing purpose, effectively avoiding the corrosion of the cable caused by groundwater or sludge infiltrating into the access groove, and improving the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1Schematic diagram of the connection structure of the threading tube body in the embodiment of the present invention Figure 1 .

[0015] Figure 2 Schematic diagram of the connection structure of the threading tube body in the embodiment of the present invention Figure 2 .

[0016] Figure 3 Schematic diagram of the airbag connection structure in an embodiment of the present invention.

[0017] Figure 4 Schematic diagram of the connection structure of the semicircular sealing plate in an embodiment of the present invention.

[0018] Figure 5 It is a cross-sectional view of the internal structure of the second sealing enclosure in an embodiment of the present invention.

[0019] In the figure: 1-threading tube body; 2-first sealing mechanism; 21-semicircular sealing plate; 22-support rod; 3-second sealing mechanism; 31-air bag; 32-trachea; 33-inflatable sealing ring; 4-driving mechanism; 41-sliding rod; 42-elastic member; 43-wedge block; 44-through hole; 5-first connector; 6-second connector; 7-first sealing enclosure; 8-second sealing enclosure; 9-connecting tube; 10-access groove; 11-extrusion plate; 12-limiting ring; 13-limiting hole; 14-limiting rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] In one embodiment, see Figure 1 , Figure 2 and Figure 3A buried multi-channel wire threading tube for communication, comprising two symmetrically distributed wire threading tube bodies 1, wherein a first connector 5 is fixed at one end of the wire threading tube body 1, and a second connector 6 is fixed at the other end of the wire threading tube body 1, a plurality of connecting tubes 9 distributed in a circumference are fixed on the side wall of the first connecting head 5, a plurality of access grooves 10 distributed in a circumference are arranged inside the second connecting head 6, a first sealing enclosure 7 is fixed outside the first connecting head 5, a second sealing enclosure 8 is fixed outside the second connecting head 6, and a second sealing enclosure 8 is fixed on the inner wall of the second sealing enclosure 8. A limiting ring 12 is provided between the limiting ring 12 and the second sealing enclosure 8, and a symmetrically distributed extrusion plate 11 is provided. The extrusion plate 11 is connected to a first sealing mechanism 2 and a second sealing mechanism 3. The first sealing mechanism 2 is used to seal the contact position between the first connector 5 and the second connector 6, and the second sealing mechanism 3 is used to seal the connection position between the connecting pipe 9 and the access groove 10. A driving mechanism 4 is provided on the inner side of the second sealing enclosure 8, and the driving mechanism 4 is used to drive the extrusion plate 11 to move relative to each other, thereby driving the first sealing mechanism 2 and the second sealing mechanism 3 to operate.

[0023] In the present embodiment, when the multi-channel threading tube is in use, the first connector 5 is aligned with the second connector 6, and the connecting tube 9 on the side wall of the first connector 5 is inserted into the access groove 10 inside the second connector 6, thereby connecting the two threading tube bodies 1, and multiple cables pass through the multiple connecting tubes 9 and the access groove 10 respectively, and then the extrusion plates 11 are driven to approach each other through the driving mechanism 4 on the inner side of the second sealing enclosure 8. When the extrusion plates 11 approach each other, they drive the first sealing mechanism 2 and the second sealing mechanism 3 to operate, wherein the first sealing mechanism 2 can seal the contact position between the first connector 5 and the second connector 6, thereby ensuring the sealing performance of the connection between the first connector 5 and the second connector 6, and the second sealing mechanism 3 can seal the position where the connecting tube 9 is connected to the access groove 10, thereby ensuring the sealing performance of the connection between the connecting tube 9 and the access groove 10, achieving a double sealing purpose for the cables inside the threading tube body 1, effectively improving the sealing performance of the cables, thereby avoiding the damage to the cables caused by groundwater or sludge infiltrating into the threading tube body 1, and improving the service life of the cables.

[0024] See also Figure 3 , Figure 4 and Figure 5 The first sealing mechanism 2 includes a semicircular sealing plate 21 which is symmetrically distributed and arranged between the limiting ring 12 and the second connector 6. The inner diameter of the semicircular sealing plate 21 is adapted to the outer diameter of the first connector 5 and the second connector 6. The semicircular sealing plates 21 are fixed with support rods 22, which penetrate the limiting ring 12 and are fixedly connected to the two extrusion plates 11 respectively.

[0025] When connecting the two wire threading tube bodies 1, after the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the two extrusion plates 11 are driven to approach each other through the driving mechanism 4, and while the extrusion plates 11 are approaching each other, the semicircular sealing plates 21 are driven to approach each other through the support rod 22 until the two semicircular sealing plates 21 are tightly fitted with the first connecting head 5 and the second connecting head 6 to form a complete circular sealing plate, wherein the contact position of the first connecting head 5 and the second connecting head 6 is located in the middle position of the two semicircular sealing plates 21, and the contact position of the first connecting head 5 and the second connecting head 6 can be sealed by the two semicircular sealing plates 21, thereby effectively preventing groundwater or sludge from seeping into the first connecting head 5 and the second connecting head 6 and causing corrosion to the cables.

[0026] See also Figure 2 , Figure 3 and Figure 5 The second sealing mechanism 3 includes a plurality of inflatable sealing rings 33 distributed in a circumference, and the inflatable sealing rings 33 are respectively arranged inside a plurality of access grooves 10, and the outer wall of the inflatable sealing ring 33 is fixedly connected to the inner wall of the access groove 10, wherein the inflatable sealing ring 33 is connected to an inflatable component, and when the driving mechanism 4 drives the extrusion plate 11 to move relative to each other, the inflatable component is used to inflate the inflatable sealing ring 33;

[0027] When the two threading tube bodies 1 are connected, the connecting tube 9 on the side wall of the first connecting head 5 will be inserted into the access groove 10 inside the second connecting head 6. During the insertion process, the connecting tube 9 will pass through the inside of the inflatable sealing ring 33. After the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the two extrusion plates 11 are driven to approach each other through the driving mechanism 4. While the extrusion plates 11 are approaching each other, the inflatable sealing ring 33 is inflated through the inflation assembly. The inflatable sealing ring 33 expands and fits tightly with the outer wall of the connecting tube 9, thereby sealing the connection position between the connecting tube 9 and the access groove 10, achieving a double sealing purpose, and effectively preventing groundwater or sludge from seeping into the access groove 10 and causing corrosion to the cable.

[0028] See also Figure 3 The inflatable component includes an airbag 31 disposed between the extrusion plate 11 and the limiting ring 12, the airbag 31 is fixedly connected to the outer wall of the limiting ring 12, the airbag 31 is connected to a plurality of air pipes 32, and the air pipes 32 are respectively connected to a plurality of the inflatable sealing rings 33;

[0029] When connecting the two threading tube bodies 1, after the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the two extrusion plates 11 are driven to approach each other through the driving mechanism 4. The extrusion plates 11 approach each other and squeeze the airbag 31 at the same time. The gas inside the airbag 31 enters the inflatable sealing ring 33 through the air pipe 32, so that the inflatable sealing ring 33 expands, and the connecting position of the connecting pipe 9 and the access groove 10 is sealed by the inflatable sealing ring 33, thereby achieving the purpose of double sealing.

[0030] See also Figure 3 and 5 The driving mechanism 4 includes a slide bar 41 fixedly connected to the extrusion plate 11, an elastic member 42 is provided outside the slide bar 41, and both ends of the elastic member 42 are respectively fixedly connected to the extrusion plate 11 and the second sealing enclosure 8, and an extrusion assembly is provided inside the second sealing enclosure 8, and the extrusion assembly is used to extrude the slide bar 41;

[0031] When connecting two wire threading tube bodies 1, after the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the sliding rod 41 is squeezed by the extrusion assembly. After the sliding rod 41 is squeezed, the extrusion plate 11 is driven to approach each other, so that the extrusion plate 11 drives the first sealing mechanism 2 and the second sealing mechanism 3 to operate, thereby ensuring the sealing performance of the cable, wherein the setting of the elastic member 42 can ensure the initial position of the extrusion plate 11, and the elastic member 42 can be a spring.

[0032] See also Figure 1 and Figure 5 The first sealing enclosure 7 and the second sealing enclosure 8 are fixedly connected by bolts and nuts, and the first sealing enclosure 7 and the second sealing enclosure 8 are both provided with through holes 44 for the bolts to pass through, wherein the side wall of the through hole 44 inside the second sealing enclosure 8 is provided with a groove, and the extrusion assembly includes a wedge block 43 arranged inside the groove, the wedge block 43 is slidably connected to the inner wall of the groove, one end of the wedge block 43 is fixedly connected to the sliding rod 41, and the other end of the wedge block 43 extends to the inside of the through hole 44;

[0033] When connecting the two threading tube bodies 1, after the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the threaded rod is passed through the through hole 44 inside the first sealing enclosure 7 and the second sealing enclosure 8, and the first sealing enclosure 7 and the second sealing enclosure 8 are fixed by means of bolts and nuts, thereby fixing the two threading tube bodies 1, wherein the bolts squeeze the inclined surface of the wedge block 43 in the process of passing through the through hole 44 inside the second sealing enclosure 8, so that the wedge block 43 drives the extrusion plate 11 to approach each other through the sliding rod 41, thereby driving the first sealing mechanism 2 and the second sealing mechanism 3 to operate.

[0034] See also Figure 1 and Figure 3 The side wall of the limiting ring 12 is provided with a plurality of limiting holes 13 distributed in a circumference, and the inner wall of the first sealing enclosure 7 is fixed with limiting rods 14 distributed in a circumference and adapted to the limiting holes 13;

[0035] When connecting the two wire threading tube bodies 1, after the first sealing enclosure 7, the second sealing enclosure 8, the first connecting head 5 and the second connecting head 6 are aligned, the limiting rods 14 on the inner wall of the first sealing enclosure 7 will be inserted into the limiting holes 13 on the side walls of the limiting ring 12, and the limiting rods 14 support and limit the limiting ring 12 through the limiting holes 13, thereby effectively improving the stability between the first sealing enclosure 7 and the second sealing enclosure 8.

[0036] Working principle: When the multi-channel threading tube is in use, the first connecting head 5 and the second connecting head 6 are aligned. During the alignment process, the connecting tube 9 on the side wall of the first connecting head 5 will be inserted into the access groove 10 inside the second connecting head 6, thereby connecting the two threading tube bodies 1. Multiple cables pass through the multiple connecting tubes 9 and the access grooves 10 respectively, and then the threaded rod is passed through the through holes 44 inside the first sealing enclosure 7 and the second sealing enclosure 8, and the first sealing enclosure 7 and the second sealing enclosure 8 are fixed by bolts and nuts, thereby fixing the two threading tube bodies 1. The bolts will squeeze the inclined surface of the wedge block 43 in the process of passing through the through holes 44 inside the second sealing enclosure 8, so that the wedge block 43 drives the extrusion plate 11 to approach each other through the sliding rod 41. While the extrusion plates 11 approach each other, the semicircular sealing plates are driven by the support rod 22. 21 approach each other until the two semicircular sealing plates 21 are tightly fitted with the first connector 5 and the second connector 6 to form a complete circular sealing plate, and the two semicircular sealing plates 21 can play a sealing role on the contact position of the first connector 5 and the second connector 6, effectively avoiding the corrosion of the cables caused by groundwater or sludge penetrating into the first connector 5 and the second connector 6, and the extrusion plates 11 approach each other while squeezing the airbag 31 on the other hand, and the gas inside the airbag 31 enters the inflatable sealing ring 33 through the air pipe 32, so that the inflatable sealing ring 33 expands, and the connecting position of the connecting pipe 9 and the access groove 10 is sealed by the inflatable sealing ring 33, thereby achieving the purpose of double sealing, effectively improving the sealing performance of the cable, thereby avoiding the damage of the cable caused by groundwater or sludge penetrating into the threading tube body 1, and improving the service life of the cable.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A buried multi-channel wire threading tube for communication, comprising two symmetrically distributed wire threading tube bodies; characterized in that: A first connecting head is fixed to one end of the threading tube body, and a second connecting head is fixed to the other end of the threading tube body. A plurality of connecting tubes distributed in a circumferential manner are fixed on the side wall of the first connecting head, and a plurality of access grooves distributed in a circumferential manner are provided inside the second connecting head. A first sealing enclosure is fixed to the outside of the first connecting head, and a second sealing enclosure is fixed to the outside of the second connecting head. A limiting ring is fixed to the inner wall of the second sealing enclosure, and a symmetrically distributed extrusion plate is provided between the limiting ring and the second sealing enclosure. The extrusion plate is connected to a first sealing mechanism and a second sealing mechanism. The first sealing mechanism is used to seal the contact position between the first connecting head and the second connecting head, and the second sealing mechanism is used to seal the connection position between the connecting tube and the access groove. A driving mechanism is provided on the inner side of the second sealing enclosure, and the driving mechanism is used to drive the extrusion plate to move relative to each other, thereby driving the first sealing mechanism and the second sealing mechanism to operate.

2. The buried multi-channel wire threading tube for communication according to claim 1, characterized in that: The first sealing mechanism includes a semicircular sealing plate which is symmetrically distributed and arranged between the limiting ring and the second connecting head. The inner diameter of the semicircular sealing plate is adapted to the outer diameter of the first connecting head and the second connecting head. The semicircular sealing plates are fixed with support rods, which pass through the limiting ring and are fixedly connected to the two extrusion plates respectively.

3. The buried multi-channel wire threading tube for communication according to claim 1, characterized in that: The second sealing mechanism includes a plurality of inflatable sealing rings distributed in a circle, and the inflatable sealing rings are respectively arranged inside a plurality of access grooves, and the outer wall of the inflatable sealing ring is fixedly connected to the inner wall of the access groove, wherein the inflatable sealing ring is connected to an inflatable component, and when the driving mechanism drives the extrusion plate to move relative to each other, the inflatable component is used to inflate the inside of the inflatable sealing ring.

4. The buried multi-channel wire threading pipe for communication according to claim 3, characterized in that: The inflatable component includes an airbag arranged between the extrusion plate and the limiting ring, the airbag is fixedly connected to the outer wall of the limiting ring, the airbag is connected to a plurality of air pipes, and the air pipes are respectively connected to the plurality of inflatable sealing rings.

5. The buried multi-channel wire threading tube for communication according to claim 1, characterized in that: The driving mechanism includes a sliding rod fixedly connected to the extrusion plate, an elastic member is provided outside the sliding rod, and both ends of the elastic member are respectively fixedly connected to the extrusion plate and the second sealing enclosure plate, and an extrusion assembly is provided inside the second sealing enclosure plate, and the extrusion assembly is used to extrude the sliding rod.

6. The buried multi-channel wire threading tube for communication according to claim 5, characterized in that: The first sealing enclosure and the second sealing enclosure are fixedly connected by means of bolts and nuts. Through holes are provided inside the first sealing enclosure and the second sealing enclosure for the bolts to pass through. A groove is provided on the side wall of the through hole inside the second sealing enclosure. The extrusion assembly includes a wedge block arranged inside the groove. The wedge block is slidably connected to the inner wall of the groove. One end of the wedge block is fixedly connected to the sliding rod, and the other end of the wedge block extends into the through hole.

7. A buried multi-channel wire threading tube for communication according to any one of claims 1 to 6, characterized in that: The side wall of the limiting ring is provided with a plurality of limiting holes distributed in a circumference, and the inner wall of the first sealing enclosure is fixed with limiting rods distributed in a circumference and matched with the limiting holes.

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