Communication pipe with shielded connection structure

Abstract

The present invention discloses a communication pipe with a shielding connection structure, comprising a shielding connection structure consisting of a first communication pipe electromagnetic shielding layer and a head end portion thereof, a conductive airbag ring, a second communication pipe electromagnetic shielding layer and a tail end portion thereof, etc.; an annular spacing cavity is formed between the inner circle of the head end portion of the electromagnetic shielding layer of the first communication pipe and the outer circle of the tail end portion of the electromagnetic shielding layer of the second communication pipe; the conductive airbag ring comprises a circular hollow conductive elastomer, the inner cavity of the circular hollow conductive elastomer is filled with compressed gas, and the compressed gas can drive the circular hollow conductive elastomer to expand; the conductive airbag ring expands and fills the annular spacing cavity and presses the cavity wall of the annular spacing cavity, and the expanded conductive airbag is respectively tightly attached to and electrically connected to the inner circle of the head end portion of the electromagnetic shielding layer of the first communication pipe and the outer circle of the tail end portion of the electromagnetic shielding layer of the second communication pipe, so as to prevent electromagnetic waves from entering and exiting the inner cavities of the two communication pipes through the gap between the two communication pipes, and the two communication pipes form a shielding connection.

Description

Technical Field

[0001] The invention relates to a communication pipe with a shielding connection structure. Background Art

[0002] Communication pipes are pipes for routing communication cables. To prevent external interference to the communication cables, the pipe wall of the communication pipe is generally built with an electromagnetic shielding layer. However, when installing the pipe, it is often necessary to splice multiple communication pipes together, but there will be a gap between the two spliced ​​communication pipes, and there will also be a gap between the electromagnetic shielding layers of the two communication pipes. External electromagnetic waves will enter the inner cavity of the two communication pipes through the gap between the two communication pipes, and may interfere with the communication cables in the inner cavity. Therefore, the two connected communication pipes need to form a shielded connection. Summary of the invention

[0003] The object of the present invention is to provide a communication pipe with a shielding connection structure, the communication pipe comprises a circular pipe body, the pipe wall of the circular pipe body comprises an inner insulating layer, an electromagnetic shielding layer, and an outer insulating layer; the two ends of the circular pipe body are respectively a head end and a tail end; the head end of the outer insulating layer is provided with a head end flange ring, and the tail end of the outer insulating layer is provided with a tail end flange ring; the electromagnetic shielding layer comprises: a head end portion located in the inner circle of the head end flange ring, and a tail end portion located outside the tail end flange ring; the inner diameter of the head end portion is greater than the outer diameter of the tail end portion; the head end of the inner insulating layer is located on the inner side of the head end portion of the electromagnetic shielding layer, and the tail end of the inner insulating layer is in the inner circle of the tail end portion of the electromagnetic shielding layer; and when two communication pipes are butt-jointed, the head end portion can be sleeved on the outer periphery of the tail end portion, and an annular spacing cavity that can be filled with a conductive airbag ring is formed between the inner circle of the head end portion and the outer circle of the tail end portion; the tail end face of the outer insulating layer is also provided with a latching structure that can release the conductive airbag ring to the annular spacing cavity; and when the two communication pipes are butt-jointed, the conductive airbag ring expands to fill the annular spacing cavity and then presses the cavity wall of the annular spacing cavity.

[0004] The specific contents of the latch structure of the present invention refer to the embodiments.

[0005] The advantages and beneficial effects of the present invention are:

[0006] The butt joint of two communication pipes of the present invention has a shielding connection structure composed of the electromagnetic shielding layer of the first communication pipe and its head end, the conductive airbag ring, the electromagnetic shielding layer of the second communication pipe and its tail end, etc. The shielding connection structure can form a shielding connection between the two communication pipes.

[0007] The butt joint of the two communication pipes of the present invention also has a latching structure consisting of an annular blind hole, an internal radial blind hole, an internal pressure spring, a strip-shaped locking block and a pin hole thereon, a conductive airbag ring, an axial through hole, a latch, etc. The latching structure can latch the conductive airbag ring and release the conductive airbag ring into the annular spacer cavity when the two communication pipes are butt jointed.

[0008] The butt joint of the two communication pipes of the present invention also has a locking structure consisting of an axial through hole, a latch and a locking hole thereon, an external radial blind hole, a locking pin, an external pressure spring, etc. The locking structure enables the two communication pipes to form a locked connection.

[0009] The shielding connection structure of the present invention can generate internal pressure that causes the two communication pipes to be stretched and separated. The internal pressure can be transmitted to the latch and lock pin of the locking structure, so that the latch and the corresponding lock pin are tightened against each other, which can further prevent the lock pin of the second communication pipe from unlocking the lock hole of the corresponding latch on the first communication pipe. That is, the internal pressure generated by the shielding connection structure can make the locked connection of the two communication pipes more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the communication pipe of the present invention;

[0011] Figure 2 This is a schematic diagram of two communication pipes before they are connected;

[0012] Figure 3 This is a schematic diagram of two communication pipes connected together. DETAILED DESCRIPTION

[0013] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0014] The technical solutions specifically implemented in the present invention are as follows:

[0015] like Figures 1 to 3 As shown, the present invention provides a communication pipe with a shielded connection structure, the communication pipe comprises a round pipe body 1, and the two ends of the round pipe body 1 are respectively a head end 100 and a tail end 200; and when two communication pipes are butted, the head end 100 of the round pipe body 1 of one communication pipe is butted with the tail end 200 of the round pipe body 1 of the other communication pipe;

[0016] The tube wall of the circular tube body 1 includes an inner insulating layer 11, an electromagnetic shielding layer 12, and an outer insulating layer 13 which are arranged in sequence from the inside to the outside; a head end flange ring 101 is provided at the head end of the outer insulating layer 13, and a tail end flange ring 201 is provided at the tail end of the outer insulating layer 13; the head end flange ring 101 and the tail end flange ring 201 are both annular, and the head end flange ring 101 and the tail end flange ring 201 are coaxial with the circular tube body 1; the electromagnetic shielding layer 12 includes: a head end portion 102 (in the circular tube) located in the inner circle of the head end flange ring 101 In the axial direction of the main body 1, the head end 102 of the electromagnetic shielding layer 12 does not protrude from the head end flange ring 101), and the tail end 202 is located outside the tail end flange ring 201 (in the axial direction of the circular tube main body 1, the tail end 202 of the electromagnetic shielding layer 12 protrudes from the tail end flange ring 201); the head end 102 and the tail end 202 of the electromagnetic shielding layer 12 are both circular, and the head end 102 and the tail end 202 are coaxial with the circular tube main body 1; the inner diameter of the head end 102 is greater than the outer diameter of the tail end 202 ; The end face of the head end 102 of the electromagnetic shielding layer 12 and the outer end face of the head end flange ring 101 (i.e., the end face of the head end flange ring 101 opposite to the tail end flange ring 201) are located in the same plane, and the plane is perpendicular to the axis of the circular tube body 1; the head end of the inner insulating layer 11 is located on the inner side of the head end 102 of the electromagnetic shielding layer 12 (in the axial direction of the circular tube body 1, the head end 102 of the electromagnetic shielding layer 12 protrudes from the head end of the inner insulating layer 11); the tail end of the inner insulating layer 11 is located at the tail end 20 of the electromagnetic shielding layer 12 2 (in the axial direction of the circular tube body 1, the tail end of the inner insulating layer 11 does not protrude from the tail end portion 202 of the electromagnetic shielding layer 12); the tail end face of the inner insulating layer 11 and the end face of the tail end portion 202 of the electromagnetic shielding layer 12 are located in the same plane, and the plane is perpendicular to the axis of the circular tube body 1; when docking, the head end portion 102 can be sleeved on the outer periphery of the tail end portion 202, and an annular spacing cavity 300 that can be filled with the expanded conductive airbag ring 207 is formed between the inner circle of the head end portion 102 and the outer circle of the tail end portion 202;

[0017] The tail end face of the outer insulating layer 13 is also provided with an annular blind hole 203, which is in a circular ring shape and is coaxial with the circular tube body 1; the inner diameter of the head end 102 of the electromagnetic shielding layer 12 is not less than the outer diameter of the annular blind hole 203 (i.e. the outer diameter of the circular ring where the annular blind hole 203 is located), and the outer diameter of the tail end 202 of the electromagnetic shielding layer 12 is not greater than the inner diameter of the annular blind hole 203 (i.e. the inner diameter of the circular ring where the annular blind hole 203 is located); the annular blind hole 203 is provided with a plurality of internal radial blind holes 204 at one end thereof close to the tail end face of the outer insulating layer 13, and the plurality of internal radial blind holes 204 are uniformly distributed along the circumference of the circular ring where the annular blind hole 203 is located, and each internal radial blind hole 204 extends along the radial direction of the circular tube body 1 to the tail end flange ring 201; the axis of each internal radial blind hole 204 is located in the same plane, and the plane Perpendicular to the axis of the circular tube body 1; each inner radial blind hole 204 is respectively provided with a strip-shaped locking block 205 and an inner pressure spring 206, and the strip-shaped locking block 205 and the inner pressure spring 206 extend in the same direction as the inner radial blind hole 204 where they are located; the strip-shaped locking block 205 is located between the inner pressure spring 206 and the annular blind hole 203, and the inner pressure spring 206 presses the strip-shaped locking block 205 into the annular blind hole 203; the annular blind hole 203 is also provided with a conductive airbag ring 207 before expansion, the conductive airbag ring 207 is annular, and the conductive airbag ring 207 is coaxial with the circular tube body 1; the conductive airbag ring 207 is located on the inner side of each strip-shaped locking block 205; the conductive airbag ring 207 includes an annular hollow conductive elastomer, the inner cavity of the annular hollow conductive elastomer is filled with compressed gas, and the compressed gas can drive the annular hollow conductive elastomer to expand;

[0018] The tail flange ring 201 is also provided with a plurality of axial through holes 208, which are evenly distributed along the circumference of the tail flange ring 201, and the axis of each axial through hole 208 is parallel to the axis of the circular tube body 1; the axis of each axial through hole 208 is located on the same cylindrical surface, and the cylindrical surface is coaxial with the circular tube body 1; the axial through holes 208 correspond to the internal radial blind holes 204 one by one, and the axial through holes 208 penetrate the corresponding internal radial blind holes 204; the axis of the axial through hole 208 and the axis of the corresponding internal radial blind hole 204 are located on the same plane , and the plane passes through the axis of the circular tube body 1; the outer end surface of the head end flange ring 101 (i.e. the end surface of the head end flange ring 101 opposite to the tail end flange ring 201) is also provided with a plurality of latches 103, the plurality of latches 103 are evenly distributed along the circumference of the head end flange ring 101, and the axis of each latch 103 is parallel to the axis of the circular tube body 1; the axis of each latch 103 is located on the same cylindrical surface, and the cylindrical surface is coaxial with the circular tube body 1; the latches 103 correspond to the axial through holes 208 one by one, and the latches 103 are coaxial with the corresponding axial through holes 208, and When docking, the latch 103 can pass through the corresponding axial through hole 208; the strip-shaped locking block 205 is also provided with a pin hole 209 that can be passed through by the corresponding latch 103, and the axial through hole 208 passes through the pin hole 209 of the strip-shaped locking block 205 in the corresponding internal radial blind hole 204; the outer end of the latch 103 (that is, the end of the latch 103 away from the head end flange ring 101) is obliquely matched with the pin hole 209 of the corresponding strip-shaped locking block 205; the inner wall of the pin hole 209 away from the annular blind hole 203 is: the outer end of the corresponding latch 103 (that is, the end of the latch 103 away from the head end flange ring 101) is The first inclined surface 210 is driven by the outer end of the blue ring 101 (i.e., it is matched with the outer end of the latch pin 103 by an oblique wedge); and the first inclined surface 210 faces the tail end 200 of the circular tube body 1; when docking, the latch pin 103 passes through the pin hole 209 of the corresponding strip-shaped locking block 205, and the strip-shaped locking block 205 can be pulled out of the annular blind hole 203; and after each strip-shaped locking block 205 is pulled out of the annular blind hole 203, the conductive airbag ring 207 can expand and fill the annular spacer cavity 300; and after the conductive airbag ring 207 fills the annular spacer cavity 300, the cavity wall of the annular spacer cavity 300 can be pressed;

[0019] The outer circumferential wall of the outer insulating layer 13 is provided with a plurality of external radial blind holes 211 at one end close to the tail flange ring 201. The plurality of external radial blind holes 211 are evenly distributed along the circumferential direction of the outer circumferential wall of the outer insulating layer 13, and each external radial blind hole 211 extends along the radial direction of the circular tube body 1; the axis of each external radial blind hole 211 is located in the same plane, and the plane is perpendicular to the axis of the circular tube body 1; the external radial blind holes 211 correspond to the axial through holes 208 one by one, and the external radial blind holes 211 are arranged in a uniform manner along the circumferential direction of the outer circumferential wall of the outer insulating layer 13. The axis of the hole 211 and the axis of the corresponding axial through hole 208 are located in the same plane, and the plane passes through the axis of the circular tube body 1; each external radial blind hole 211 is provided with a lock pin 212 and an external pressure spring 213, the lock pin 212 and the external pressure spring 213 are extended in the same direction as the external radial blind hole 211 where they are located, the external pressure spring 213 is located inside the lock pin 212, and the lock pin 212 is connected to the circular tube body 1 through the external pressure spring 213; the outer end of the latch pin 103 (i.e. The end of the latch pin 103 away from the head end flange ring 101) is obliquely matched with the outer end of the corresponding lock pin 212 (i.e., the end of the lock pin 212 away from the external pressure spring 213); the end surface of the outer end of the lock pin 212 (i.e., the end of the lock pin 212 away from the external pressure spring 213) is: a second inclined surface 214 that can be driven by the corresponding outer end of the latch pin 103 (i.e., the end of the latch pin 103 away from the head end flange ring 101) (i.e., obliquely matched with the outer end of the latch pin 103); and the second inclined surface 214 faces the tail end 200 of the circular tube body 1; the outer end of the latch 103 (i.e. the end of the latch 103 away from the head end flange ring 101) is also provided with a locking hole 104 into which the corresponding locking pin 212 can be inserted, and when docking, the latch 103 passes through the corresponding axial through hole 208 and the corresponding locking pin 212 can be inserted into the locking hole 104 of the latch 103, and the external pressure spring 213 on the inner side of the locking pin 212 can press the locking pin 212 into the locking hole 104 of the latch 103.

[0020] When two communication pipes of the present invention are butted together, the first end 100 of the circular tube body of one communication pipe is butted with the tail end 200 of the circular tube body of the other communication pipe (the circular tube bodies of the two communication pipes are coaxial); of the two communication pipes: the communication pipe butted at the first end 100 of the circular tube body is the first communication pipe 910, and the communication pipe butted at the tail end 200 of the circular tube body is the second communication pipe 920; the circular tube body of the first communication pipe 910 is the first circular tube body 911, and the circular tube body of the second communication pipe 920 is the second circular tube body 921; when butt-joined:

[0021] Make the head end 100 of the first circular tube body 911 face the tail end 200 of the second circular tube body 921; make the latch 103 on the first communication tube 910 correspond to the axial through hole 208 on the second communication tube 920 one by one, and make the latch 103 on the first communication tube 910 face the corresponding axial through hole 208 on the second communication tube 920;

[0022] Then, the latch pins 103 on the first communication pipe 910 are respectively passed through the corresponding axial through holes 208 on the second communication pipe 920 and pass over the corresponding locking pins 212 on the second communication pipe 920 until the flange ring 101 at the head end of the first circular pipe body 911 and the flange ring 201 at the tail end of the second circular pipe body 921 are in contact with each other; at this time, the first circular pipe body 911 and the second circular pipe body 921 are coaxial; the locking pin 212 of the second communication pipe 920 is inserted into the first communication pipe 9 10 is inserted into the lock hole 104 corresponding to the latch 103 and locks the latch 103; and the head end 102 of the electromagnetic shielding layer 12 of the first communication pipe 910 is sleeved on the outer periphery of the tail end 202 of the electromagnetic shielding layer 12 of the second communication pipe 920, and an annular spacer cavity 300 that can be filled with the inflated conductive airbag ring 207 is formed between the inner circle of the head end 102 of the electromagnetic shielding layer 12 of the first communication pipe 910 and the outer circle of the tail end 202 of the electromagnetic shielding layer 12 of the second communication pipe 920;

[0023] In the process of the latch 103 on the first communication tube 910 penetrating the corresponding axial through hole 208 on the second communication tube 920, the latch 103 on the first communication tube 910 also penetrates the pin hole 209 of the corresponding strip lock block 205 on the second communication tube 920 and pulls the strip lock block 205 out of the annular blind hole 203 of the second communication tube 920; and after each strip lock block 205 on the second communication tube 920 is pulled out of the annular blind hole 203, the conductive airbag ring 207 of the second communication tube 920 expands and fills the inner circle of the head end 102 of the electromagnetic shielding layer 12 of the first communication tube 910 and the electromagnetic shielding layer 12 of the second communication tube 920. An annular spacer cavity 300 is formed between the outer circle of the tail end 202 of the layer 12, and the conductive airbag ring 207 expands to fill the annular spacer cavity 300 and then presses the cavity wall of the annular spacer cavity 300. The expanded conductive airbag is respectively tightly attached to and electrically connected with the inner circle of the head end 102 of the electromagnetic shielding layer 12 of the first circular tube body 911 and the outer circle of the tail end 202 of the electromagnetic shielding layer 12 of the second circular tube body 921, which can prevent electromagnetic waves from entering and exiting the inner cavity of the first circular tube body 911 and the second circular tube body 921 through the gap between the first circular tube body 911 and the second circular tube body 921, and the first communication tube 910 and the second communication tube 920 form a shielding connection.

[0024] The butt joint of the two communication pipes 910 and 920 of the present invention has a shielding connection structure composed of the electromagnetic shielding layer 12 of the first communication pipe 910 and its head end 102, the conductive airbag ring 207, the electromagnetic shielding layer 12 of the second communication pipe 920 and its tail end 202. The shielding connection structure can form a shielding connection between the two communication pipes 910 and 920. Specifically: an annular spacing cavity 300 is formed between the inner circle of the head end 102 of the electromagnetic shielding layer 12 of the first communication tube 910 and the outer circle of the tail end 202 of the electromagnetic shielding layer 12 of the second communication tube 920; the conductive airbag ring 207 includes a circular hollow conductive elastomer, the inner cavity of the circular hollow conductive elastomer is filled with compressed gas, and the compressed gas can drive the circular hollow conductive elastomer to expand; the conductive airbag ring 207 expands and fills the annular spacing cavity 300 and then presses the cavity wall of the annular spacing cavity 300, and the expanded conductive airbag is respectively tightly attached to and electrically connected to the inner circle of the head end 102 of the electromagnetic shielding layer 12 of the first communication tube 910 and the outer circle of the tail end 202 of the electromagnetic shielding layer 12 of the second communication tube 920, which can prevent electromagnetic waves from entering and exiting the inner cavity of the two communication tubes 910 and 920 through the gap between the two communication tubes 910 and 920, so that the two communication tubes 910 and 920 form a shielding connection.

[0025] The butt joint of the two communication pipes 910 and 920 of the present invention also has a latching structure composed of an annular blind hole 203, an inner radial blind hole 204, an inner pressure spring 206, a strip-shaped locking block 205 and a pin hole 209 thereon, a conductive airbag ring 207, an axial through hole 208, a latch pin 103, etc. The latching structure can latch the conductive airbag ring 207 and release the conductive airbag ring 207 to the annular spacer cavity 300 when the two communication pipes 910 and 920 are butt jointed. Specifically: 1) In normal state, the conductive airbag ring 207 is stored in the annular blind hole 203; and the internal pressure spring 206 presses the strip lock block 205 into the annular blind hole 203, and the strip lock block 205 can prevent the conductive airbag ring 207 from moving outward; 2) When the two communication pipes 910 and 920 are docked, during the process that the pin 103 on the first communication pipe 910 penetrates the corresponding axial through hole 208 on the second communication pipe 920, the pin 103 on the first communication pipe 910 also penetrates the second communication pipe 920. and when the latch 103 passes through the pin hole 209 corresponding to the strip locking block 205, the first inclined surface 210 of the inner wall of the pin hole 209 is matched with the outer end of the latch 103, and the outer end of the latch 103 can drive the strip locking block 205 to compress the internal pressure spring 206, so that the strip locking block 205 shrinks toward the internal radial blind hole 204 where it is located so that the strip locking block 205 does not block the conductive airbag ring 207 from moving outward, so as to release the conductive airbag ring 207 into the annular spacer cavity 300.

[0026] The butt joint of the two communication pipes 910 and 920 of the present invention also has a locking structure consisting of an axial through hole 208, a latch 103 and a locking hole 104 thereon, an external radial blind hole 211, a locking pin 212, an external pressure spring 213, etc. The locking structure enables the two communication pipes 910 and 920 to form a locked connection. Specifically: In the process of the latch 103 on the first communication pipe 910 passing through the corresponding axial through hole 208 on the second communication pipe 920 and passing over the corresponding locking pin 212 on the second communication pipe 920, the second inclined surface 214 at the outer end of the locking pin 212 is matched with the outer end of the latch 103, and the outer end of the latch 103 can drive the locking pin 212 to compress the external pressure spring 213, so that the locking pin 212 shrinks toward the external radial blind hole 211 where it is located so that the locking pin 212 does not hinder the movement of the latch 103; when the head end flange ring 101 of the first circular tube body 911 is in contact with the tail end flange ring 201 of the second circular tube body 921, the second communication pipe 910 is in contact with the second communication pipe 920. The locking pin 212 of the communication tube 920 is directly opposite to the locking hole 104 of the corresponding pin 103 on the first communication tube 910, and the external pressure spring 213 on the inner side of the locking pin 212 of the second communication tube 920 pushes the locking pin 212 into the locking hole 104 of the corresponding pin 103 on the first communication tube 910, and presses the locking pin 212 of the second communication tube 920 into the locking hole 104 of the corresponding pin 103 on the first communication tube 910, preventing the locking pin 212 of the second communication tube 920 from unlocking the locking hole 104 of the corresponding pin 103 on the first communication tube 910, so that the two communication tubes 910 and 920 form a locked connection.

[0027] In addition, the conductive airbag ring 207 of the present invention expands and fills the annular spacer cavity 300, which will exert an axial outward force on the first communication pipe 910, and has a tendency to stretch and separate the two communication pipes 910 and 920; that is, the shielding connection structure of the present invention will generate internal pressure that stretches and separates the two communication pipes 910 and 920. The internal pressure can be transmitted to the latch 103 and the lock pin 212 of the locking structure, so that the latch 103 and the corresponding lock pin 212 are mutually tightened, which can further prevent the lock pin 212 of the second communication pipe 920 from unlocking the lock hole 104 of the corresponding latch 103 on the first communication pipe 910, that is, the internal pressure generated by the shielding connection structure can make the locking connection of the two communication pipes 910 and 920 more stable and reliable.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A communication pipe with a shielded connection structure, characterized in that: The communication pipe comprises a circular pipe body, the pipe wall of which comprises an inner insulating layer, an electromagnetic shielding layer and an outer insulating layer; the two ends of the circular pipe body are respectively a head end and a tail end; the head end of the outer insulating layer is provided with a head end flange ring, and the tail end of the outer insulating layer is provided with a tail end flange ring; the electromagnetic shielding layer comprises: a head end portion located in the inner circle of the head end flange ring, and a tail end portion located outside the tail end flange ring; the inner diameter of the head end portion is greater than the outer diameter of the tail end portion; the head end of the inner insulating layer is located on the inner side of the head end portion of the electromagnetic shielding layer, and the tail end of the inner insulating layer is in the inner circle of the tail end portion of the electromagnetic shielding layer; and when two communication pipes are butt-jointed, the head end portion can be sleeved on the outer periphery of the tail end portion, and an annular spacing cavity that can be filled with a conductive airbag ring is formed between the inner circle of the head end portion and the outer circle of the tail end portion; the tail end face of the outer insulating layer is also provided with a latching structure that can release the conductive airbag ring into the annular spacing cavity; and when the two communication pipes are butt-jointed, the conductive airbag ring expands to fill the annular spacing cavity and then presses the cavity wall of the annular spacing cavity; The tail end face of the outer insulating layer is also provided with an annular blind hole; the annular blind hole is provided with a plurality of internal radial blind holes at one end thereof close to the tail end face of the outer insulating layer, the plurality of internal radial blind holes are evenly distributed along the circumference of the annular blind hole, and each internal radial blind hole extends to the tail end flange ring respectively; each internal radial blind hole is provided with a strip-shaped locking block and an internal pressure spring respectively, and the internal pressure spring presses the strip-shaped locking block into the annular blind hole; the annular blind hole is also provided with a conductive airbag ring, and the conductive airbag ring is located on the inner side of each strip-shaped locking block; The tail end flange ring is also provided with a plurality of axial through holes; the axial through holes correspond to the internal radial blind holes one by one, and the axial through holes penetrate the corresponding internal radial blind holes; the outer end surface of the head end flange ring is also provided with a plurality of latches; the latches correspond to the axial through holes one by one, and the latches can penetrate the corresponding axial through holes during docking; the strip-shaped locking block is also provided with a pin hole that can be penetrated by the corresponding latches, and the latches penetrate the pin holes of the corresponding strip-shaped locking blocks during docking to pull the strip-shaped locking blocks out of the annular blind holes; and after each strip-shaped locking block is pulled out of the annular blind holes, the conductive airbag ring can expand and fill the annular spacing cavity; and after the conductive airbag ring fills the annular spacing cavity, the cavity wall of the annular spacing cavity can be pressed tightly; The outer peripheral wall of the outer insulating layer is provided with a plurality of external radial blind holes at one end close to the tail end flange ring; the external radial blind holes correspond to the axial through holes one by one; a locking pin and an external pressure spring are respectively provided in each external radial blind hole; a locking hole into which the corresponding locking pin can be inserted is also provided at the outer end of the latch pin, and the corresponding locking pin can be inserted into the locking hole of the latch pin after the latch pin passes through the corresponding axial through hole during docking, and the external pressure spring can press the locking pin tightly in the locking hole.

2. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The conductive airbag ring comprises a circular hollow conductive elastic body, and the inner cavity of the circular hollow conductive elastic body is filled with compressed gas.

3. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The inner diameter of the front end of the electromagnetic shielding layer is not less than the outer diameter of the annular blind hole, and the outer diameter of the rear end of the electromagnetic shielding layer is not greater than the inner diameter of the annular blind hole.

4. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The end face of the head end of the electromagnetic shielding layer and the outer end face of the head end flange ring are located in the same plane, and the plane is perpendicular to the axis of the circular tube body.

5. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The end surface of the rear end of the inner insulating layer and the end surface of the rear end of the electromagnetic shielding layer are located in the same plane, and the plane is perpendicular to the axis of the circular tube body.

6. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The outer end of the latch pin is matched with the pin hole of the corresponding strip-shaped locking block in an oblique manner; the inner wall of the pin hole is on a side away from the annular blind hole and is a first inclined surface that can be driven by the outer end of the corresponding latch pin; and the first inclined surface faces the rear end of the circular tube body.

7. The communication pipe with a shielding connection structure according to claim 1, characterized in that: The outer end of the latch pin is matched with the outer end of the corresponding lock pin in an oblique fit; the end surface of the outer end of the lock pin is: a second inclined surface that can be driven by the corresponding outer end of the latch pin; and the second inclined surface faces the rear end of the round tube body.

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