Bundled silicon core pipe connecting device
By using a slidable housing and spiral hose in the bundled silicon core tube connection, combined with a quick joint and a cladding fixing sleeve, the defects of hot melt and quick joints in the prior art are solved, and the airtightness of docking is achieved and stability, adapting to the thermal expansion and contraction of the pipeline, ensuring the long-term stability of the connection.
Patent Information
- Application Number
- CN202422895351.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-11-27
AI Technical Summary
When the existing bundled silicon core tubes are connected and connected, the hot melting method can easily lead to the compression diameter of the inner wall of the microtube, affecting the airflow. The rapid joints fail due to thermal expansion and contraction, and cannot effectively deal with the deformation of the pipeline.
Using a connecting device including a first housing, a second housing, a bundle connecting plate, a spiral hose, a quick joint and a cladding fixing sleeve, the docking of the microtubes is achieved through the spiral hose and a quick joint, and through a slidable shell The body and support rods adapt to thermal expansion and contraction, ensuring the airtightness and stability of the connection.
The stable butt and airtight connection of the bundled silicon core tube are realized, adapting to the thermal expansion and contraction of the pipeline, avoiding the protection failure caused by the rapid joint due to stress pulling, and ensuring the long-term stability and airtightness of the connection.
Smart Images
Figure CN222262137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline joints, and specifically discloses a clustered silicon core pipe connecting device. Background Art
[0002] The clustered silicon core tube is a pipe used for the protection of communication lines. Its main body is made of high-density polyethylene. The tube body consists of an outer cladding and multiple parallel silicon core microtubes. Each microtube is also made of high-density polyethylene. The inner wall of the microtube is coated with silicone solid lubricant, which can reduce the friction between the cable and the inner wall, making it easier to thread and pull the cable by air blowing.
[0003] Clustered silicon core pipes are usually laid in trench pipe corridors. During construction, the pipes need to be laid first and then the cables are blown. Therefore, the overall air tightness of the pipes is certain. The existing two clustered silicon core pipes are usually connected by hot melting or joint connection when they are connected and butt-jointed. However, the above methods all have certain defects: hot melting is to heat the two ends of the two micro-tubes with butt joints to near the melting point of the pipe, and weld the two pipes by extrusion. The two pipe walls are squeezed and fused with each other. The advantage is that the two pipes are tightly connected to each other after welding, can withstand large stretching, and have strong pressure bearing capacity when blowing cables; the disadvantage is that if the squeezed pipe overflows or arches inward, it may cause the inner wall of the micro-tube to be squeezed to produce a shrinkage phenomenon, resulting in the influence of airflow in the later cable blowing process, so there are high requirements for hot melting operation; the other is to use quick joints to connect the two pipes by means of sockets and spigots. The advantage is that the construction operation is simple, but if the pipes are deformed due to thermal expansion and contraction in the later stage, the socket and spigot connection method of the joint is easily pulled apart by stress, which leads to protection failure. Utility Model Content
[0004] The utility model aims to provide a clustered silicon core tube connection device to solve the problems existing in the prior art.
[0005] The utility model is implemented by the following technical scheme: a clustered silicon core tube connection device, comprising a first shell, a second shell, a cluster connection plate, a spiral hose, a quick connector and a cladding fixing sleeve; the first shell and the second shell are movably nested and connected, a cluster connection plate is fixedly provided at one end of each of the first shell and the second shell, a plurality of spiral hoses are provided between the two cluster connection plates, the two ends of the spiral hose are respectively fixedly connected to the cluster connection plates on both sides, the spiral hose passes through the cluster connection plate, a plurality of quick connectors are fixedly installed at the position of the cluster connection plate corresponding to the spiral hose, the quick connector is connected to the spiral hose, and a cladding fixing sleeve is provided on the cluster connection plate and outside the quick connector.
[0006] Furthermore, it also includes guide sleeves and guide shafts. On one of the cluster connecting plates, a plurality of guide sleeves are fixedly installed along the spiral axis of each spiral hose. A guide shaft is slidably arranged in each guide sleeve. The guide shaft is placed in the guide sleeve and has a boss at one end. The boss is in active contact with the shrinkage at the end of the guide sleeve. The other end of the guide shaft is fixedly installed on another cluster connecting plate.
[0007] Furthermore, it also includes support rods, support seats and clamping blocks. On one of the clustering connecting plates, a plurality of support seats are fixedly provided along the sliding direction of the first shell and the second shell, and the support seats are placed outside the first shell and the second shell. On the other clustering connecting plate, clamping blocks are fixedly provided at corresponding positions of each support seat, and a support rod is abutted between the clamping block and the support seat.
[0008] Furthermore, the quick connector includes a shell, a sealing ring, a retaining spring and a release cap. The retaining spring is nested in the shell, and a spring leaf with an inwardly contracted opening is integrally formed on the retaining spring. The sealing ring is nested in the retaining spring, and a release cap is slidably provided in the shell and outside the retaining spring. One end of the release cap is placed in the shell and abuts against the spring leaf of the retaining spring.
[0009] Furthermore, one end of the cladding fixing sleeve is threadedly connected to the cluster connection plate, and the other end is integrally formed with a threaded portion and a claw piece. A pressure cap is sleeved on the threaded portion, and the pressure cap is threadedly connected to the threaded portion. A conical necking is arranged in the pressure cap corresponding to the claw piece position.
[0010] The utility model has the advantages that the clustered silicon core tubes can be docked with each other through the spiral hose and quick connector arranged on the clustered connecting plate and the micro-tubes of the clustered silicon core tubes. At the same time, the first shell and the second shell that can slide relatively and the spiral hose can have the function of expansion and contraction within a certain range, so as to adapt to the thermal expansion and contraction of the clustered silicon core tubes on both sides of the connector, avoid stress pulling on the quick connector, and ensure the airtightness and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a schematic diagram of the internal structure of the utility model.
[0013] Figure 3 It is a partial structural sectional view of the guide sleeve and guide shaft.
[0014] Figure 4 This is the structural explosion diagram of the quick connector.
[0015] Figure 5 It is a structural cross-sectional view of a quick connector.
[0016] Figure 6 It is a schematic diagram of the local structure of the cladding fixing sleeve.
[0017] In the figure: a first shell 1, a second shell 2, a cluster connection plate 3, a spiral hose 4, a quick connector 5, a cladding fixing sleeve 6, a guide sleeve 7, a guide shaft 8, a support rod 9, a support seat 10, a clamping block 11, a shell 501, a sealing ring 502, a retaining spring 503, a release cap 504, a threaded portion 601, a claw piece 602, a pressure cap 603, a necking 701, and a boss 801. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "top", "bottom", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0020] like Figure 1 , Figure 2As shown: a clustered silicon core tube connection device, comprising a first shell 1, a second shell 2, a cluster connection plate 3, a spiral hose 4, a quick connector 5 and a cladding fixing sleeve 6; the first shell 1 and the second shell 2 are movably nested and connected, a cluster connection plate 3 is fixedly provided at one end of each of the first shell 1 and the second shell 2, and a plurality of spiral hoses 4 are provided between the two cluster connection plates 3. The spiral hose 4 can be made of PE material, and the whole is spirally installed, and can have a large elastic deformation, and can be compressed or stretched along the length direction of the spiral axis. The two ends of the spiral hose 4 are respectively fixedly connected to the cluster connection plates 3 on both sides, and the spiral hose 4 passes through the cluster connection plate 3. A plurality of quick connectors 5 are fixedly installed at the position of the cluster connection plate 3 corresponding to the spiral hose 4, and the quick connector 5 is connected with the spiral hose 4. The quick connector 5 is used to connect the spiral hose 4 and the cluster The microtubes of the bundled silicon core tubes are provided with a cladding fixing sleeve 6 on the bundle connection plate 3 and the outer cover of the quick connector 5. The cladding fixing sleeve 6 is used to fix the bundle connection plate 3 and the cladding of the bundled silicon core tubes. The working principle is to respectively install the microtubes of two sections of the bundled silicon core tubes on the quick connectors 5 of the two bundle connection plates 3, and each microtube is connected through the spiral hose 4 in the middle of the bundle connection plate 3. The optical cable passes through the spiral hose 4 to play a protective role. When the bundled silicon core tubes on both sides are subjected to force and move relatively, the first shell 1 and the second shell 2 are slidably nested with each other and can be compressed or stretched against each other. The spacing between the two bundle connection plates 3 can also be changed. The spiral hose 4 can be stretched or compressed like a spring due to its shape characteristics to adapt to the extrusion and stretching of the bundled silicon core tubes on both sides. It can have a certain telescopic function while ensuring the airtight connection of the microtubes of each silicon core tube.
[0021] When blowing the cable, if the pitch of the spiral hose 4 is too small, the friction between the cable and the inner wall of the spiral hose 4 will increase during the blowing process, causing the resistance to increase. Therefore, during the blowing process, the first shell 1 and the second shell 2 can be pulled apart to the maximum distance to extend the spiral hose 4 and reduce the angle between the spiral hose 4 and the cluster silicon core tubes on both sides. Therefore, a support rod 9, a support seat 10 and a block 11 can also be provided. On one of the cluster connection plates 3, a plurality of support seats 10 are fixedly provided along the sliding direction of the first shell 1 and the second shell 2. The support seats 10 are placed between the first shell 1 and Outside the second shell 2, a block 11 is fixedly provided on another cluster connecting plate 3 at the position corresponding to each support seat 10, and a support rod 9 is abutted between the block 11 and the support seat 10. During the cable blowing process, the first shell 1 and the second shell 2 are first pulled apart toward each other to the maximum spacing, and the support rod 9 is abutted between the support seat 10 and the block 11. To ensure uniform force, multiple support seats 10 and blocks 11 can be set, and the support rod 9 is abutted between each support seat 10 and the block 11. After the cable blowing is completed, the support rod 9 is removed, and the spiral hose 4 naturally retracts to the normal position.
[0022] like Figure 3As shown: In order to ensure that the clustering connection plates 3 on both sides only move back and forth along the length direction of the first shell 1 and the second shell 2 to avoid axial torsion causing the spiral hose 4 to be entangled and deformed, guide sleeves 7 and guide shafts 8 are also provided. On one of the clustering connection plates 3, a plurality of guide sleeves 7 are fixedly installed along the spiral axis of each spiral hose 4. A guide shaft 8 is slidably provided in each guide sleeve 7. The guide shaft 8 is placed in the guide sleeve 7 and one end is provided with a boss 801. The boss 801 is in active contact with the constriction 701 at the end of the guide sleeve 7. The other end of the guide shaft 8 is fixedly installed on the other clustering connection plate 3. The boss 801 and the constriction 701 play a limiting role to prevent the first shell 1 and the second shell 2 from being pulled apart from each other beyond the length of their nested coupling and causing disjointment.
[0023] like Figure 4 , Figure 5 As shown: the quick connector 5 includes a housing 501, a sealing ring 502, a retaining spring 503 and a release cap 504. The retaining spring 503 is nested in the housing 501. A spring piece with an inwardly contracted opening is integrally formed on the retaining spring 503. The sealing ring 502 is nested in the retaining spring 503. A release cap 504 is slidably arranged in the housing 501 and outside the retaining spring 503. One end of the release cap 504 is placed in the housing 501 and abuts against the spring piece of the retaining spring 503. The silicon The core tube is inserted into the shell 501, and the spring piece of the retaining ring 503 abuts against the outer wall of the silicon core tube and faces the inside of the shell 501. The silicon core tube is sealed with the shell 501 by the sealing ring 502. The edge of the spring piece is relatively sharp, and it is embedded with the outer wall of the silicon core tube to prevent the silicon core tube from withdrawing outward. When the silicon core tube needs to be withdrawn, it is necessary to press the release cap 504 inward. The release cap 504 pushes the spring piece inward along the outer wall of the silicon core tube. The spring piece is separated from the silicon core tube, and the silicon core tube can be easily withdrawn.
[0024] like Figure 6 As shown: one end of the cladding fixing sleeve 6 is threadedly connected to the cluster connection plate 3, and the other end is integrally formed with a threaded portion 601 and a claw piece 602. A pressing cap 603 is sleeved on the threaded portion 601, and the pressing cap 603 is threadedly connected to the threaded portion 601. A conical shrinkage is arranged in the pressing cap 603 corresponding to the position of the claw piece 602. When the pressing cap 603 is screwed on the threaded portion 601, the shrinkage at the rear of the pressing cap 603 gradually compresses the claw piece 602 inward, thereby squeezing and fixing the external cladding of the cluster tube.
Claims
1. A clustered silicon core tube connection device, characterized in that: The invention comprises a first shell (1), a second shell (2), a cluster connection plate (3), a spiral hose (4), a quick connector (5) and a cladding fixing sleeve (6); the first shell (1) and the second shell (2) are movably nested and connected; a cluster connection plate (3) is fixedly provided at one end of each of the first shell (1) and the second shell (2); a plurality of spiral hoses (4) are provided between the two cluster connection plates (3); the two ends of the spiral hose (4) are respectively fixedly connected to the cluster connection plates (3) on both sides; the spiral hose (4) passes through the cluster connection plate (3); a plurality of quick connectors (5) are fixedly installed at positions of the cluster connection plate (3) corresponding to the spiral hose (4); the quick connector (5) is connected to the spiral hose (4); and a cladding fixing sleeve (6) is provided on the cluster connection plate (3) and on the outer cover of the quick connector (5).
2. A clustered silicon core tube connection device according to claim 1, characterized in that: It also comprises a guide sleeve (7) and a guide shaft (8), wherein a plurality of guide sleeves (7) are fixedly mounted on one of the cluster connection plates (3) along the spiral axis of each spiral hose (4), a guide shaft (8) is slidably mounted in each guide sleeve (7), the guide shaft (8) is disposed in the guide sleeve (7) and one end thereof is provided with a boss (801), the boss (801) is in active contact with a constriction (701) at the end of the guide sleeve (7), and the other end of the guide shaft (8) is fixedly mounted on another cluster connection plate (3).
3. A clustered silicon core tube connection device according to claim 2, characterized in that: It also comprises a support rod (9), a support seat (10) and a clamping block (11), wherein a plurality of support seats (10) are fixedly provided on one of the cluster connection plates (3) along the sliding direction of the first shell (1) and the second shell (2), the support seats (10) being arranged outside the first shell (1) and the second shell (2), and a clamping block (11) is fixedly provided on the other cluster connection plate (3) at a position corresponding to each support seat (10), and a support rod (9) is abutted between the clamping block (11) and the support seat (10).
4. A clustered silicon core tube connection device according to any one of claims 1 to 3, characterized in that: The quick connector (5) comprises a housing (501), a sealing ring (502), a retaining spring (503) and a release cap (504); the retaining spring (503) is nested in the housing (501); a spring leaf with an inwardly contracted opening is integrally formed on the retaining spring (503); the sealing ring (502) is nested in the retaining spring (503); a release cap (504) is slidably provided in the housing (501) and outside the retaining spring (503); one end of the release cap (504) is placed in the housing (501) and abuts against the spring leaf of the retaining spring (503).
5. A clustered silicon core tube connection device according to claim 4, characterized in that: One end of the cladding fixing sleeve (6) is threadedly connected to the cluster connection plate (3), and the other end is integrally formed with a threaded portion (601) and a claw piece (602). A pressing cap (603) is sleeved on the threaded portion (601), and the pressing cap (603) is threadedly connected to the threaded portion (601). The pressing cap (603) is tapered and contracted at a position corresponding to the claw piece (602).