Microtubule joint

Abstract

The utility model discloses a kind of microtube joints, belong to the technical field of blowing microtube microcable, including first shell, second shell and connecting pipe.First shell includes first chamber, first chamber has first opening, and first opening can be detachably fixed on mounting hole.Second shell includes second chamber, and annular snap spring and locking release unit are arranged in second chamber.Annular snap spring includes annular part and several limit teeth, and annular part is arranged in second chamber.Limit tooth is arranged in the inner ring area of annular part.Locking release unit can move in second chamber towards first shell.The both ends of connecting pipe are communicated with first chamber and second chamber respectively.The microtube joint provided by the utility model can ensure that microcable enters information bottom box along microtube under the action of high-pressure airflow, and also can realize the convenient and stable connection between microtube and information bottom box, which not only can avoid the influence caused by microtube falling off from information bottom box on microcable, but also can simplify microtube installation process.

Description

Technical Field

[0001] This utility model belongs to the field of air-blown microtube and microcable technology, and specifically relates to a microtube connector. Background Technology

[0002] Fiber to the Desktop (FTTD) is the development trend of information networks. Air-blown microtube and microcable technology can effectively solve the problems of FTTD cable construction, and the 86-panel ONU series products can effectively solve the problems of FTTD photoelectric conversion.

[0003] When using an 86-panel ONU to solve the photoelectric conversion of network port IP devices (such as bullet cameras, dome cameras, APs, access controllers, etc.), the 86-panel ONU usually needs to be placed on the ceiling. In this case, if the microtube (usually 5 / 3.5mm) can be fixedly connected to the information box (including the 86-panel box), on the one hand, the micro cable (or fiber optic unit) can enter the information box (including the 86-panel box) along the microtube under the action of high-pressure airflow. The exposed section of the micro cable (including the pigtail) after the micro cable is terminated can be coiled in the information box (including the 86-panel box); on the other hand, the information box (including the 86-panel box) can just be used to install and fix the 86-panel ONU and other devices.

[0004] The microtube airtight connectors in related technologies can only connect microtubes to microtubes. For example, at the junction of two microtubes, the airtight connector is used to connect the two microtubes. However, the airtight connectors in related technologies usually cannot achieve convenient and reliable installation connection between microtubes and information back boxes (including 86 back boxes). Utility Model Content

[0005] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a microtube connector, which can ensure that the micro-cable enters the information back box (including 86 back box) along the microtube under the action of high-pressure airflow, and at the same time realizes a convenient and stable connection between the microtube and the information back box (including 86 back box). This not only avoids the impact on the micro-cable caused by the microtube falling off the information back box (including 86 back box), but also simplifies the microtube installation process and improves construction efficiency.

[0006] To achieve the above objectives, this utility model provides a microtube connector for connecting a microtube to a mounting hole on the side wall of an information base box (including an 86 base box), comprising: The first housing includes a first chamber with a first opening. The first opening is detachably fixed to the mounting hole for communicating with the first chamber and the information base box (including the 86 base box). The second housing includes a second chamber having a second opening, and a ring snap spring and a locking release unit are disposed in the second chamber. The annular retaining ring includes an annular portion and a plurality of limiting teeth. The annular portion is disposed in the second cavity. The plurality of limiting teeth are spaced circumferentially in the inner annular region of the annular portion for locking the microtube. The locking release unit is partially embedded into the second chamber from the second opening, and the locking release unit can move in the direction of the second chamber toward the first housing to drive the deformation of the limiting tooth to release the locking of the annular snap ring onto the microtube; A connecting tube is provided, with its two ends connected to the end face of the first housing opposite to the first opening and the end face of the second housing opposite to the second opening, respectively. The two ends of the connecting tube are connected to the first chamber and the second chamber, respectively. The connecting tube is coaxially arranged with the annular retaining spring and is used to guide the micro-cable blown out of the micro-tube into the first chamber.

[0007] As a further preferred embodiment of this utility model, a threaded connection assembly is provided between the first opening and the mounting hole; The threaded connection assembly includes a hollow inner sleeve and a first internal thread disposed on the inner wall of the first cavity. A locking boss is provided at one end of the outer wall of the hollow inner sleeve, and a first external thread is provided at the other end of the outer wall of the hollow inner sleeve. The first external thread partially or completely engages with the first internal thread, so that the locking boss and the first housing can be detachably clamped to both sides of the side wall of the information base box (including the 86 base box). This achieves a convenient and fixed connection of the first housing on the information base box (including the 86 base box).

[0008] As a further preferred embodiment of this utility model, a guide tube is provided on the inner wall of the first chamber. One end of the guide tube is connected to the connecting pipe, and the other end of the guide tube is located in the cavity of the hollow inner sleeve for guiding the micro-cable.

[0009] As a further preferred embodiment of this utility model, at least one sealing component is provided between the inner wall of the first cavity and the outer wall of the hollow inner sleeve; The sealing assembly includes a sealing groove and an elastic sealing ring; the sealing groove is disposed on the inner wall of the first cavity and / or the outer wall of the hollow inner sleeve; the elastic sealing ring completely fills the sealing groove, and a portion of the elastic sealing ring extends out of the sealing groove, for sealing between the inner wall of the first cavity and the outer wall of the hollow inner sleeve.

[0010] By combining the sealing components set on the outward-facing annular protrusion and the sealing components set between the inner wall of the base garment cavity and the outer wall of the hollow inner sleeve, the information box (including the 86 box) can be suspended outdoors to prevent rainwater from entering the information box (including the 86 box), thus significantly improving the security of the information box (including the 86 box).

[0011] As a further preferred embodiment of this utility model, the first housing is provided with a plurality of first elastic claws and a plurality of stops; Each of the first elastic claws is disposed on the end face of the first housing opposite to the second housing, and the claw hook of the first elastic claw is perpendicular to the outer wall surface of the first housing; Each of the aforementioned stops is disposed on the outer wall surface of the first housing opposite to the claw hook, so that when the first housing is fixed to the information base box (including the 86 base box), the claw hook and the stop can respectively abut against the two sides of the side wall of the information base box (including the 86 base box). This achieves convenient connection and positioning between the first housing and the mounting hole.

[0012] As a further preferred embodiment of the present invention, a limiting sleeve is provided between the second chamber and the locking release unit. The limiting sleeve is detachably connected to the inner wall of the second chamber, and the end face of the limiting sleeve facing the connecting pipe abuts against the annular portion.

[0013] As a further preferred embodiment of this utility model, the detachable connection structure between the second chamber and the limiting sleeve includes any one of a locking block connection, a threaded connection, or a magnetic connection; And / or, the detachable connection structure between the locking release unit and the limiting sleeve includes any one of a snap-fit ​​connection, a threaded connection, or a magnetic connection.

[0014] As a further preferred embodiment of this utility model, the side wall of the limiting sleeve is provided with a plurality of second elastic claws, and both ends of the second elastic claws are provided with protrusions; the inner wall of the second cavity is provided with a plurality of limiting grooves; the locking release unit is a locking release sleeve with an annular boss on the outer wall. The locking release sleeve, the limiting sleeve, and the second housing are sequentially sleeved together, and the radial protrusions at both ends of the second elastic claw respectively correspond to and match the annular boss and the limiting groove, which are used to limit the locking release unit in the second chamber.

[0015] As a further preferred embodiment of this utility model, the locking release unit, the limiting sleeve, and the second housing are sequentially sleeved together, the limiting sleeve and the locking release unit are threadedly connected, and the limiting sleeve and the second housing are threadedly connected.

[0016] By incorporating a threaded structure between the locking contact sleeve, the limiting sleeve, and the second sleeve, the locking contact unit can accurately release the ring spring from locking the microtube while simultaneously preventing openings on the outer wall of the second housing. This prevents external rainwater from seeping into the second chamber through these openings, thus enhancing the waterproof performance of the microtube connector. In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: (1) The microtube connector of this utility model comprises a first housing, a second housing, and a connecting tube. The first housing includes a first chamber with a first opening, which is detachably fixed to a mounting hole. The second housing includes a second chamber with a second opening, and a ring snap ring and a locking release unit are provided in the second chamber. The ring snap ring includes a ring portion and several limiting teeth, with the ring portion disposed in the second chamber. Several limiting teeth are spaced circumferentially in the inner ring area of ​​the ring portion for locking the microtube. The locking release unit is partially embedded into the second chamber from the second opening, and the locking release unit can reciprocate within the second chamber. The two ends of the connecting tube are respectively connected to the first chamber and the second chamber. This utility model provides a microtube connector that ensures that the micro-cable enters the information box (including the 86 box) along the microtube under the action of airflow, and also realizes a convenient and stable connection between the microtube and the information box (including the 86 box). This not only avoids the impact of the microtube falling off the information box (including the 86 box) on the micro-cable, but also simplifies the microtube installation process and improves construction efficiency.

[0017] (2) The microtube connector of this utility model has several inclined triangular teeth arranged circumferentially on the inner ring of the annular compression spring, which allows the microtube to be inserted from the first direction but not to be inserted from the other direction, thereby effectively improving the fixing effect of the triangular teeth on the microtube. In addition, by setting an annular wedge-shaped surface on the outer wall of the locking release sleeve facing the end of the first housing, and the clamp between the annular wedge-shaped surface and the central axis is smaller than the clamp between the triangular teeth and the central axis, it is ensured that the locking release sleeve can accurately push up the deformation of each triangular tooth. Combined with the pressure ring set between the annular retaining spring and the inner wall of the second chamber, and the pressure ring having a flared mouth on the end face facing the second opening, the deformation of the upper limit teeth of the annular retaining spring by the locking release sleeve is limited, avoiding deformation caused by excessive deformation of the annular retaining spring.

[0018] (3) The microtube connector of this utility model has a stable connection, is easy to install, and has a low cost. It achieves a convenient and stable detachable connection between the microtube connector and the mounting hole of the first housing by adopting a first housing including threaded connection or snap-fit ​​connection. Combined with the locking release sleeve and limiting sleeve that are sequentially sleeved in the second housing by threaded connection or snap-fit ​​connection, it can not only form a stable limit on the ring compression spring used for locking the micro cable, but also realize the convenient switching of the locking state of the ring compression spring through the locking release sleeve, thereby realizing the stable and convenient installation of the second housing and the micro cable. At the same time, by the sealing component set between the hollow inner sleeve and the first chamber, and combined with several sealing components set on the locking boss, when the microtube connector is installed in the outdoor suspended information box (including 86 box), it can avoid external pollutants such as rainwater and dust from entering the information box (including 86 box) through the mounting hole as much as possible, thereby ensuring that the 86-type panel can have a better operating environment, and has good promotion prospects and application value. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the microtube connector in an embodiment of this utility model; Figure 2 This is a perspective view of the microtube connector in an embodiment of this utility model; Figure 3 This is a cross-sectional view of the microtube connector in another embodiment of the present invention; Figure 4 This is a perspective view of the microtube connector in another embodiment of the present invention; Figure 5 This is a partial cross-sectional view of the second housing side of the microtube connector in an embodiment of this utility model; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. First housing; 11. Hollow inner sleeve; 12. Locking boss; 13. Guide straight tube; 14. First elastic pawl; 15. Stop block; 2. Second housing; 21. Limiting groove; 22. Annular snap ring; 23. Locking release sleeve; 24. Annular boss; 25. Limiting sleeve; 26. Second elastic claw; 27. Pressure ring; 28. Sealing ring; 3. Connecting pipe; 4. Information back box (including 86 back box); 41. Mounting hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example: Please see Figures 1-5 The microtube connector in the preferred embodiment of this utility model can ensure that the micro-cable enters the information box (including the 86 box) along the microtube under the action of airflow. At the same time, it can also realize a convenient and stable connection between the microtube and the information box (including the 86 box). This not only avoids the impact on the micro-cable caused by the microtube falling off the information box (including the 86 box), but also simplifies the microtube installation process and improves construction efficiency.

[0026] Specifically, such as Figures 1-5 As shown in the preferred embodiment of this application, the microtube connector includes a first housing 1, a second housing 2, and a connecting tube 3.

[0027] The first housing 1 includes a first chamber with a first opening. This first opening is detachably fixed to a mounting hole 41 on the side wall of the information back box (including the 86-type back box) 4, allowing the first chamber to communicate with the intermediate receiving chamber of the information back box (including the 86-type back box) 4. Preferably, the information back box 4 is an 86-type back box. However, the information back box 4 can also be any of the following: a deepened 86-type back box, a combined 86-type back box, a 118 / 120-type back box, or a 146-type back box. Any type that can accommodate the panel to be connected to the optical fiber is within the range of options for the information back box in this application, and will not be elaborated further here.

[0028] The second housing 2 includes a second chamber with a second opening. A ring-shaped retaining spring 22 and a locking release unit are disposed within the second chamber. The ring-shaped retaining spring 22 includes an annular portion and several limiting teeth. The annular portion is disposed within the second chamber, and correspondingly, the limiting teeth are spaced circumferentially within the inner annular region of the annular portion. When the microtube passes through the ring-shaped retaining spring 22, the sidewall of the microtube abuts against the limiting teeth, allowing each limiting tooth to deform and abut against the outer wall of the microtube. This allows the limiting teeth to restrict the microtube, preventing it from accidentally falling out of the second chamber.

[0029] Furthermore, one or all of the locking release unit is embedded into the second chamber from the second opening, and the locking release unit can move towards the first housing 1 in the second chamber. When it is necessary to contact the ring snap ring 22 to lock the microtube, the locking release unit is driven to abut against the limiting tooth deformation, so that the limiting tooth contacts the locking of the outer wall of the microtube. At this time, the user can directly remove the microtube from the second housing 2.

[0030] Preferably, one end of the locking release unit is located in the second chamber, and the locking contact unit located outside the second chamber is easy to operate, that is, personnel can easily drive the locking release unit to move in the second chamber.

[0031] More preferably, all the locking release units are located in the second chamber. In this case, driving the locking release units requires the aid of a driving tool, such as a ring pin, which can avoid erroneous contact of the locking release units and thus improve the safety of the microtube connector.

[0032] Furthermore, the two ends of the connecting tube 3 are respectively connected to the end face of the first housing 1 opposite to the first opening and the end face of the second housing 2 opposite to the second opening, and the two ends of the connecting tube 3 are respectively connected to the first chamber and the second chamber. Simultaneously, the connecting tube 3 is coaxially arranged with the annular retaining ring 22, so that the micro-channels passing through the annular retaining ring 22 can be accurately aligned with the channel of the connecting tube 3, so that the micro-cables in the microtube can be accurately guided into the first chamber under the action of airflow. Preferably, the first housing 1, the connecting tube 3, and the second housing 2 are all coaxially arranged.

[0033] Furthermore, such as Figure 1 , 2 As shown, in a preferred embodiment of this application, a threaded connection assembly is provided between the first opening and the mounting hole 41. The threaded connection assembly includes a hollow inner sleeve 11 and a first internal thread provided on the inner wall of the first cavity. A locking boss 12 is provided at one end of the outer wall of the hollow inner sleeve 11, and correspondingly, a first external thread is provided at the other end of the outer wall of the hollow inner sleeve 11. The first external thread partially or completely engages with the first internal thread, so that the locking boss 12 and the first housing 1 can be detachably clamped on both sides of the side wall of the information base box (including the 86 base box) 4.

[0034] Preferably, the locking boss 12 is an outwardly turned annular boss 24 provided at the end of the hollow inner sleeve 11 facing away from the second housing 2, so that when the hollow inner sleeve 11 is threadedly connected to the first housing 1, the annular boss 24 can abut against the inner wall of the information base box (including the 86 base box) 4 outside the mounting hole 41. More preferably, the inner diameter of the mounting hole 41 is the same as the inner diameter of the first opening, and an outwardly turned annular boss 24 is also provided at the end of the first housing 1 facing away from the second housing 2, so that the first housing 1 can abut against the outer wall of the information base box (including the 86 base box) 4. Preferably, a guide tube 13 is provided on the inner wall of the first chamber, one end of the guide tube 13 is connected to the connecting tube 3, and the other end of the guide tube 13 is located in the cavity of the hollow inner sleeve 11 for guiding the micro-cable.

[0035] Further preferably, in the preferred embodiment of this application, a sealing component is provided on the outward-facing annular protrusion 24 to form a seal between the outward-facing annular protrusion 24 and the side wall of the information base box (including the 86 base box) 4. For example, in an outdoor camera, the information base box (including the 86 base box) 4 not only needs to be installed in a suspended manner, but also needs to prevent foreign objects such as rainwater from entering the information base box (including the 86 base box) 4. Therefore, by providing a sealing component on the outward-facing annular protrusion provided on the first housing 1, foreign objects such as rainwater and dust in the environment can be prevented from seeping into the information base box (including the 86 base box) 4 through the mounting hole 41, thereby ensuring that the 86-type panel is in a normal working environment.

[0036] More specifically, in a preferred embodiment of this application, at least one sealing component is provided between the inner wall of the first cavity and the outer wall of the hollow inner sleeve 11. The sealing component is located in the overlapping area where the outer wall of the hollow inner sleeve 11 and the inner wall of the first cavity are threaded. In a specific preferred embodiment, only half the length of the outer wall of the hollow inner sleeve 11 is threaded, and correspondingly, half the length of the inner wall of the first cavity is also threaded. The sealing component is located in the threaded area between the hollow inner sleeve 11 and the first cavity, further improving the waterproof performance of the first housing 1 and the second housing 2.

[0037] Furthermore, in a preferred embodiment of this application, the sealing assembly includes a sealing groove and an elastic sealing ring; the sealing groove is disposed on the inner wall of the first cavity and / or the outer wall of the hollow inner sleeve 11. The elastic sealing ring completely fills the sealing groove, and a portion of the elastic sealing ring extends out of the sealing groove, for sealing between the inner wall of the first cavity and the outer wall of the hollow inner sleeve 11.

[0038] Furthermore, such as Figure 3 , 4As shown, in another preferred embodiment of this application, a plurality of first elastic claws 14 and a plurality of stops 15 are provided on the first housing 1. Each first elastic claw 14 is disposed on the end face of the first housing 1 opposite to the second housing 2, and the claw hook of the first elastic claw 14 is perpendicular to the outer wall surface of the first housing 1. Correspondingly, each stop 15 is disposed on the outer wall surface of the first housing 1 opposite to the claw hook, so that when the first housing 1 is fixed to the information base box (including the 86 base box) 4, the claw hook and the stop 15 can respectively abut against the two sides of the side wall of the information base box (including the 86 base box) 4.

[0039] Preferably, on the end face of the first housing 1 facing away from the second housing 2, the first elastic claws 14 are evenly spaced in the circumferential direction. Correspondingly, a stop block 15 is provided between each two adjacent first elastic claws 14, and the axial distance between the claw hook of the first elastic claw 14 and the stop block 15 is equal to the thickness of the side wall of the information base box (including the 86 base box) 4.

[0040] More preferably, in the preferred embodiment of this application, an annular inclined surface is provided on the end face of the first elastic claw 14 facing away from the second housing 2. Preferably, each annular inclined surface is located on the same annular flared opening.

[0041] Furthermore, in a preferred embodiment of this application, a limiting sleeve 25 is provided between the second chamber and the locking release unit. The limiting sleeve 25 is detachably connected to the inner wall of the second chamber, and the limiting sleeve 25 abuts against the annular portion facing the end face of the connecting pipe 3, so that the limiting sleeve 25 can abut against the annular portion of the circumferential retaining ring on the second chamber to form a stable limiting of the annular retaining ring 22.

[0042] More preferably, such as Figures 1-5 As shown, in the preferred embodiment of this application, the detachable connection structure between the second chamber and the limiting sleeve 25 includes any one of a locking block connection, a threaded connection, or a magnetic connection. And / or the detachable connection between the locking release unit and the limiting sleeve 25 also includes any one of a locking block connection, a spring connection, or a magnetic connection.

[0043] Specifically, the side wall of the limiting sleeve 25 is provided with a number of second elastic claws 26, and both ends of the second elastic claws 26 are provided with protrusions. At the same time, the inner wall of the second cavity is provided with a number of limiting grooves 21. Correspondingly, the locking release unit is a locking release sleeve 23 with an annular boss 24 on the outer wall.

[0044] In actual use, the locking release sleeve 23, the limiting sleeve 25, and the second housing 2 are sequentially fitted together, and the protrusions at both ends of the second elastic claw 26 correspond to the annular boss 24 and the limiting groove 21, respectively. That is, the protrusion of the second elastic claw 26 facing the limiting groove 21 is directly engaged in the limiting groove 21 to achieve a detachable connection and fixation between the limiting sleeve 25 and the second housing 2. At the same time, a movement space is formed between the protrusion on the other side of the second elastic claw 26 and the annular retaining spring 22, and after the locking release sleeve 23 is fitted into the limiting sleeve 25, the annular boss 24 will engage with the protrusion on the other side of the second elastic claw 26, so that the locking release sleeve 23 can reciprocate in the limiting sleeve 25 while preventing the locking release sleeve 23 from accidentally coming out of the limiting sleeve 25.

[0045] Furthermore, in a preferred embodiment of this application, a plurality of limiting grooves 21 are provided circumferentially on the second housing 2, and correspondingly, a plurality of second elastic claws 26 are provided circumferentially on the limiting sleeve 25 to ensure a detachable connection between the limiting sleeve 25 and the second housing 2.

[0046] Further preferably, in another preferred embodiment of this application, the locking release unit, the limiting sleeve 25, and the second housing 2 are sequentially sleeved, and the limiting sleeve 25 is threadedly connected to the locking release unit, and the limiting sleeve 25 is threadedly connected to the second housing 2.

[0047] Specifically, the locking release unit is a locking release sleeve 23. The outer wall of the locking release sleeve 23 is threaded, and both the inner and outer walls of the limiting sleeve 25 are threaded. The inner wall of the second housing 2 is also threaded. This allows the locking release sleeve 23, the limiting sleeve 25, and the second housing 2 to be sequentially fitted together, so that they can be detachably connected through their threads. This ensures that the locking contact unit can accurately release the ring spring 22 from locking the microtube while also preventing openings on the outer wall of the second housing 2. This prevents external rainwater from seeping into the second chamber through the openings on the outer wall of the second housing 2, thus improving the waterproof performance of the microtube connector.

[0048] Preferably, when one end of the limiting sleeve 25 abuts against the annular retaining spring 22, the other end of the limiting sleeve 25 extends out of the second opening. Correspondingly, when one end of the locking release sleeve 23 abuts against the deformation of the limiting tooth, the other end of the locking release sleeve 23 extends out of the hollow cavity of the limiting sleeve 25, so that the user can rotate the limiting sleeve 25 and the locking release sleeve 23 in sequence as needed, and flexibly change the positions of the limiting sleeve 25 and the locking release sleeve 23.

[0049] Furthermore, in another preferred embodiment of this application, a threaded connection may be used between the locking release sleeve 23 and the limiting sleeve 25, and a locking block connection may be used between the limiting sleeve 25 and the second housing 2. Alternatively, a locking block connection may be used between the locking release sleeve 23 and the limiting sleeve 25, and a threaded connection may be used between the limiting sleeve 25 and the second housing 2.

[0050] More preferably, in the preferred embodiment of this application, the limiting teeth on the annular retaining ring 22 are all inclined triangular teeth. The bottom end of the triangular teeth is located in the inner ring area of ​​the annular portion, and the top end of the triangular teeth faces the center of the annular portion and the first housing 1, forming a structure similar to a one-way valve. That is, the microtube can be inserted from the first direction, but the microtube cannot be inserted from the other direction, thereby effectively improving the fixing effect of the triangular teeth on the microtube.

[0051] More specifically, in a preferred embodiment of this application, an annular wedge-shaped surface is provided on the outer wall surface of the locking release sleeve 23 facing the end of the first housing 1, and the clamp between the annular wedge-shaped surface and the central axis is smaller than the clamp between the triangular teeth and the central axis, so as to ensure that the locking release sleeve 23 can accurately lift each triangular tooth deformation.

[0052] Furthermore, in a preferred embodiment of this application, a pressure ring 27 is provided between the annular retaining spring 22 and the inner wall of the second chamber. The pressure ring 27 has a flared opening on its end face facing the second opening. Preferably, the angle between the flared opening and the central axis is greater than the angle between the annular wedge-shaped surface at the end of the locking release sleeve 23 and the central axis, and the angle between the flared opening and the central axis is less than the angle between the triangular tooth and the central axis, so as to limit the deformation of the upper limit tooth of the annular retaining spring 22 by the locking release sleeve 23.

[0053] More preferably, in the preferred embodiment of this application, the connecting tube 3 has a stepped hole, the end of which faces the second housing 2 is the large-diameter end, and the outer diameter of the through hole in the large-diameter section is equal to the diameter of the microtube. Furthermore, the diameter of the small-diameter end is equal to the diameter of the microcable, thereby enabling the end of the microtube to abut against the large-diameter end of the stepped hole, thus limiting the depth of the microcable.

[0054] More specifically, in a preferred embodiment of this application, a sealing ring 28 is provided between the inner wall of the second chamber and the pressure ring 27. The inner diameter of the sealing ring 28 is slightly smaller than the outer diameter of the microcable, so that the microcable can form an effective seal after passing through the sealing ring 28.

[0055] Furthermore, in a preferred embodiment of this application, the first housing 1, the second housing 2, and the connecting tube 3 are integrally formed, which not only simplifies the manufacturing cost of the microtube connector, but also prevents external rainwater from seeping into the first and second chambers.

[0056] Furthermore, in another preferred embodiment of this application, the first housing 1, the second housing 2, and the connecting pipe 3 are fixedly connected by a locking block connection and a threaded connection.

[0057] The microtube connector of this utility model offers stable connection, convenient installation, and low cost. It achieves a convenient and stable detachable connection between the microtube connector and the mounting hole 41 of the first housing 1, using either threaded or snap-fit ​​connections. Combined with the locking release sleeve 23 and limiting sleeve 25 sequentially fitted into the second housing 2 using threaded or snap-fit ​​connections, this not only provides stable limiting for the annular compression spring used for locking the micro-cable but also allows for convenient switching of the annular compression spring's locking state via the locking release sleeve 23, thus enabling stable and convenient installation of the second housing 2 and the micro-cable. Simultaneously, the sealing assembly located between the hollow inner sleeve 11 and the first chamber, along with several sealing components on the locking boss 12, minimizes the entry of external contaminants such as rainwater and dust into the information box (including the 86-type box) 4 when the microtube connector is installed in an outdoor suspended information box (including the 86-type box), ensuring a better operating environment for the 86-type panel. This design has good prospects for promotion and application value.

[0058] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microtube connector for connecting a microtube to a mounting hole on the side wall of an information base box, characterized in that, include: A first housing, the first housing including a first chamber, the first chamber having a first opening, the first opening being detachably fixed to the mounting hole for communicating the first chamber and the information base box; The second housing includes a second chamber having a second opening, and a ring snap spring and a locking release unit are disposed in the second chamber. The annular retaining ring includes an annular portion and a plurality of limiting teeth. The annular portion is disposed in the second cavity. The plurality of limiting teeth are spaced circumferentially in the inner annular region of the annular portion, and are used to deform each limiting tooth to abut against and lock the outer wall of the microtube when the microtube passes through. One end or all of the locking release unit is embedded into the second chamber from the second opening, and the locking release unit can move in the direction of the second chamber toward the first housing to drive the deformation of the limiting tooth so as to release the locking of the annular snap ring to the microtube; A connecting tube is provided, with its two ends connected to the end face of the first housing opposite to the first opening and the end face of the second housing opposite to the second opening, respectively. The two ends of the connecting tube are connected to the first chamber and the second chamber, respectively, so that the micro-cable laid out from the microtube can pass through the microtube connector and enter the information box.

2. The microtube connector according to claim 1, characterized in that, A threaded connection assembly is provided between the first opening and the mounting hole; The threaded connection assembly includes a hollow inner sleeve and a first internal thread disposed on the inner wall of the first cavity. A locking boss is provided at one end of the outer wall of the hollow inner sleeve, and a first external thread is provided at the other end of the outer wall of the hollow inner sleeve. The first external thread partially or completely engages with the first internal thread, so that the locking boss and the first housing can be detachably clamped on both sides of the side wall of the information base box.

3. The microtube connector according to claim 2, characterized in that, A guide tube is provided on the inner wall of the first chamber. One end of the guide tube is connected to the connecting tube, and the other end of the guide tube is located in the cavity of the hollow inner sleeve for guiding the micro-cable.

4. The microtube connector according to claim 2, characterized in that, At least one sealing component is provided between the inner wall of the first cavity and the outer wall of the hollow inner sleeve; The sealing assembly includes a sealing groove and an elastic sealing ring; the sealing groove is disposed on the inner wall of the first cavity and / or the outer wall of the hollow inner sleeve; the elastic sealing ring completely fills the sealing groove, and a portion of the elastic sealing ring extends out of the sealing groove, for sealing between the inner wall of the first cavity and the outer wall of the hollow inner sleeve.

5. The microtube connector according to claim 1, characterized in that, The first housing is provided with a plurality of first elastic claws and a plurality of stops; Each of the first elastic claws is disposed on the end face of the first housing opposite to the second housing, and the claw hook of the first elastic claw is perpendicular to the outer wall surface of the first housing; Each of the aforementioned blocks is disposed on the outer wall surface of the first housing opposite to the claw hook, so that when the first housing is fixed to the information base box, the claw hook and the block can respectively abut against the two sides of the side wall of the information base box.

6. The microtube connector according to any one of claims 1 to 5, characterized in that, A limiting sleeve is provided between the second chamber and the locking release unit. The limiting sleeve is detachably connected to the inner wall of the second chamber, and the end face of the limiting sleeve facing the connecting pipe abuts against the annular portion.

7. The microtube connector according to claim 6, characterized in that, The detachable connection structure between the second chamber and the limiting sleeve includes any one of the following: a snap-fit ​​connection, a threaded connection, or a magnetic connection; And / or, the detachable connection structure between the locking release unit and the limiting sleeve includes any one of a snap-fit ​​connection, a threaded connection, or a magnetic connection.

8. The microtube connector according to claim 7, characterized in that, The side wall of the limiting sleeve is provided with a plurality of second elastic claws, and both ends of the second elastic claws are provided with protrusions; the inner wall of the second cavity is provided with a plurality of limiting grooves; the locking release unit is a locking release sleeve with an annular boss on the outer wall. The locking release sleeve, the limiting sleeve, and the second housing are sequentially sleeved together, and the radial protrusions at both ends of the second elastic claw respectively correspond to and match the annular boss and the limiting groove, which are used to limit the locking release unit in the second chamber.

9. The microtube connector according to claim 7, characterized in that, The locking release unit, the limiting sleeve, and the second housing are sequentially sleeved together. The limiting sleeve and the locking release unit are threaded together, and the limiting sleeve and the second housing are threaded together.

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