Traction mechanism suitable for optical fiber connector and optical fiber connector

Abstract

The utility model relates to the field of connectors, in particular to a traction mechanism suitable for an optical fiber connector, which comprises a pull ring sleeve cup and a seat body, the seat body is arranged on a fastening sleeve of a stopper of the optical fiber connector, the pull ring sleeve cup wraps the optical fiber connector, and after the pull ring sleeve cup is detachably connected with the seat body, a closed space wrapping the optical fiber connector is formed; the surface of the stopper is provided with the fastening sleeve, the fastening sleeve is used for stably keeping the connection between the stopper and the optical fiber cable, the fastening sleeve has the characteristic of stable structure, the seat body is arranged on the fastening sleeve, the tensile force generated during traction acts on the fastening sleeve, and the fastening sleeve only tightly wraps the stopper and the optical fiber cable. The optical fiber connector has no buckle connection mode, so that the whole optical fiber connector is prevented from being twisted during dragging, and in other words, the separation risk can be further reduced due to the fact that all parts, connected through buckles, in the optical fiber connector are prevented from being contacted.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more particularly to a traction mechanism suitable for fiber optic connectors and a fiber optic connector. Background Technology

[0002] In broadband services, fiber optic cable laying is indispensable for operators. The environment for laying cables is relatively complex, and it is often necessary to pass the fiber optic cable through holes to ensure that the fiber optic cable can reach the target area, such as wall holes.

[0003] These fiber optic cables are typically inserted into the equipment using SC-type fiber optic connectors. Therefore, when pulling the cable, the SC-type fiber optic connector, as the end being pulled, is preferentially passed through the wall hole. However, the design and function of the SC-type fiber optic connector is only for connection with the equipment. During the cable pulling process, a soft iron wire is usually used to pass through the wall hole, and then these soft iron wires are tied to the fiber optic cable. By pulling the soft iron wire on the other side of the wall, the fiber optic cable is pulled out of the wall hole smoothly with the help of the soft iron wire.

[0004] Traditional cable pulling methods are unstable. The soft wire is simply wrapped around the fiber optic cable a few times, and it easily slips when the fiber optic cable is being dragged. Although there are SC fiber optic connectors, which are larger in size, they can stop the soft wire from sliding on the fiber optic cable. However, when encountering bends in wall holes, the SC fiber optic connectors are subjected to greater force. In addition, many internal structures of the SC fiber optic connectors are connected by snap-fit ​​mechanisms, and the SC fiber optic connectors are easily unable to withstand this force and may scatter and separate.

[0005] The SC type mentioned above is just one type of plug-in method. In fact, there are other types of plug-in methods as well. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a traction mechanism for fiber optic connectors and a fiber optic connector, aiming to solve the problem that fiber optic connectors are prone to separation during traction.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a traction mechanism suitable for fiber optic connectors, characterized in that it includes a pull ring cup and a seat, the seat is set on the fastening sleeve of the stopper of the fiber optic connector, the pull ring cup wraps around the fiber optic connector, and after the seat is detachably connected, it forms a closed space that wraps around the fiber optic connector.

[0008] The beneficial effects of this utility model are:

[0009] The surface of the stopper is a fastening sleeve. The function of the fastening sleeve is to stably maintain the connection between the stopper and the optical fiber. The fastening sleeve has the characteristic of structural stability. The seat is set on the fastening sleeve. The pulling force generated during traction is applied to the fastening sleeve. The fastening sleeve simply wraps tightly around the stopper and the optical fiber without any snap-fit ​​connection itself. When dragging, it avoids twisting the entire optical fiber connector. In other words, because it avoids contact with the various parts of the optical fiber connector that are connected by snap-fit, the risk of separation can be further reduced.

[0010] Secondly, after using the pull ring cup and the base, the pull ring cup and the base form a closed space, and the fiber optic connector is sealed inside the pull ring cup. At this time, the dust generated during the pulling process is also isolated and will not invade the fiber optic connector, reducing the need for cleaning the fiber optic connector later. At the same time, this structure will not interfere with the fiber optic connector. For example, it is not necessary to remove part of the fiber optic connector. This utility model is a design based on the original structure of the fiber optic connector. After the pulling is completed, the pull ring cup can be removed to complete the plug-in assembly with the equipment.

[0011] The base is a waterproof nut, while the pull ring sleeve is a pull ring dust cap. The inner ring surface of the pull ring dust cap is threaded, and the pull ring dust cap is threaded to the waterproof nut.

[0012] The pull ring dust cap has an interior space that can accommodate the entire stopper.

[0013] The purpose of choosing a waterproof nut for the base is not only to prevent water from entering the dust cap of the pull ring, but also to cooperate with the waterproof rubber ring. The waterproof rubber ring is fitted onto the fastening sleeve and locked onto the fastening sleeve by the locking device, so that there is a tight contact between the waterproof rubber ring and the fastening sleeve. When pulling the cable, sometimes the cable channel is buried underground. The benefit of waterproofing is that the fiber optic connector in the fiber optic connector will not get wet.

[0014] The locking component described above is an integral structure. The locking component is an arc shape with an opening reserved on the side wall. The diameter of the locking component is smaller than the diameter of the waterproof rubber ring. During the assembly, the locking component expands to accommodate the fastening sleeve. The expanded locking component provides a clamping force to the waterproof rubber ring, making the waterproof rubber ring and the fastening sleeve in close contact.

[0015] An optical fiber connector includes a housing and a stop, the housing being fitted onto the stop, characterized in that it includes a traction mechanism suitable for the optical fiber connector, the traction mechanism being fitted onto the housing and the stop.

[0016] The stopper includes an inner shell, an optical fiber connector, a spring, a fastening sleeve, a dust cap, a ferrule, an assembly cylinder, and a support cylinder. The assembly cylinder, support cylinder, inner shell, outer shell, and support cylinder all have openings at both ends and are hollow inside. The assembly cylinder is fitted onto one end of the optical fiber, and one end of the support cylinder is embedded in the assembly cylinder. A first limiting ring is provided on the outer ring surface of the support cylinder, and the first limiting ring abuts against the end face of the assembly cylinder to prevent the support cylinder from squeezing the outer sheath of the optical fiber.

[0017] The fastening sleeve is fitted onto both the assembly cylinder and the optical fiber. In some embodiments, the fastening sleeve is made of rubber, which gives it greater elastic wrapping ability and is intended to prevent the optical fiber from falling out of the assembly cylinder.

[0018] The other end of the support tube is provided with an annular groove and an annular step. The annular groove is formed by hollowing out the inner circumference of the support tube and is close to the outside of the support tube. The annular step is set on the inner annular surface of the support tube. The outer wall of the ferrule is provided with a first step corresponding to the annular groove. The spring is located between the first step and the annular step. The annular groove has a depth for the first step to move. The spring is constrained by the first step and the first annular step. The ferrule is used to assemble the fiber optic connector. When assembled with the equipment, the spring can provide a stable connection force to ensure that the connection between the two will not loosen.

[0019] The inner shell is fitted onto the support cylinder, and the inner shell and the support cylinder are connected by a snap-fit. The inner ring surface of the inner shell is provided with a second limiting ring, which is opposite to the first step. In other words, the second limiting ring abuts against the insert to prevent the insert from coming out of the inner shell. The outer shell is also connected to the inner shell by a snap-fit ​​structure.

[0020] The dust cap is placed over the fiber optic connector, which is fixed inside the ferrule. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention.

[0022] Figure 2 yes Figure 1 A sectional view.

[0023] Figure 3 yes Figure 2 Enlarged diagram of point A.

[0024] Figure 4 This is an exploded view of this utility model.

[0025] Figure 5 yes Figure 4 Enlarged diagram of point B.

[0026] Figure 6 yes Figure 4 Enlarged diagram of point C.

[0027] Figure 7 This is a 3D diagram of the tray.

[0028] Figure 8 yes Figure 7 A sectional view.

[0029] Figure 9 This is a three-dimensional view of the stopper section structure in cross-section. Detailed Implementation

[0030] Please see Figure 1-9 As shown, a traction mechanism suitable for fiber optic connectors is characterized by comprising a pull ring cup 1 and a seat 2. The seat 2 is disposed on the fastening sleeve 31 of the stopper 3 of the fiber optic connector. The pull ring cup 1 wraps around the fiber optic connector and, after the seat 2 is detachably connected, forms a closed space that wraps around the fiber optic connector.

[0031] The beneficial effects of this utility model are:

[0032] The surface of the stopper 3 is a fastening sleeve 31. The function of the fastening sleeve 31 is to stably maintain the connection between the stopper 3 and the optical fiber 4. The fastening sleeve 31 has the characteristic of structural stability. The seat 2 is set on the fastening sleeve 31. The pulling force generated during traction is applied to the fastening sleeve 31. The fastening sleeve 31 is simply tightly wrapped around the stopper 3 and the optical fiber 4. It does not have any snap-fit ​​connection method itself. When dragging, it avoids twisting of the entire optical fiber connector. In other words, because it avoids contact with the various parts of the optical fiber connector that are connected by snap-fit, the risk of separation can be further reduced.

[0033] Secondly, after using the pull ring cup 1 and the base 2, the pull ring cup 1 and the base 2 form a closed space, and the fiber optic connector is sealed inside the pull ring cup 1. At this time, the dust generated during the pulling process will also be isolated and will not invade the fiber optic connector, reducing the need for cleaning the fiber optic connector later. At the same time, this structure will not interfere with the fiber optic connector. For example, it is not necessary to remove part of the fiber optic connector. This utility model is a design based on the original structure of the fiber optic connector. After the pulling is completed, the pull ring cup 1 can be removed to complete the plug-in assembly with the equipment.

[0034] The base 2 is a waterproof nut, while the pull ring cup 1 is a pull ring dust cap. The inner ring surface of the pull ring dust cap is threaded, and the pull ring dust cap is threadedly connected to the waterproof nut.

[0035] The pull ring dust cap has a space inside that encompasses the entire stopper 3.

[0036] The pull ring dust cap has a ring opening 100, which makes it easy for a soft wire to pass through.

[0037] The purpose of choosing a waterproof nut for the base 2 is not only to prevent water from entering the dust cap of the pull ring, but also to cooperate with the waterproof rubber ring 5. The waterproof rubber ring 5 is fitted onto the fastening sleeve 31 and is locked onto the fastening sleeve 31 by the locking member 6, so that there is a tight contact between the waterproof rubber ring 5 and the fastening sleeve 31. When pulling the cable, sometimes the channel of the optical fiber cable 4 is buried underground. The benefit of waterproofing is that the optical fiber connector 32 in the optical fiber connector will not get wet.

[0038] The locking component 6 is an integral structure. The locking component 6 is an arc shape with an opening 61 reserved on the side wall. The diameter of the locking component 6 is smaller than the diameter of the waterproof rubber ring 5. During the assembly, the locking component 6 expands to accommodate the fastening sleeve 31. The expanded locking component 6 provides a clamping force to the waterproof rubber ring 5, so that the waterproof rubber ring 5 and the fastening sleeve 31 are in close contact.

[0039] An optical fiber connector includes the aforementioned traction structure. The optical fiber connector includes a housing 7 and a stopper 3. The stopper 3 cooperates with the housing 7 to constrain the amount of displacement of the optical fiber connector 32.

[0040] The stopper 3 includes an inner shell 33, an optical fiber connector 32, a spring 34, a fastening sleeve 31, a dust cap 35, a ferrule 36, an assembly cylinder 37, and a support cylinder 38. The assembly cylinder 37, the support cylinder 38, the inner shell 33, the outer shell 7, and the support cylinder 38 are all provided with openings at both ends and are hollow inside. The assembly cylinder 37 is fitted onto one end of the optical fiber 4, and one end of the support cylinder 38 is embedded in the assembly cylinder 37. The core of the optical fiber 4 passes through the support cylinder 38. A first limiting ring 38-a is provided on the outer ring surface of the support cylinder 38. The first limiting ring 38-a abuts against the end face of the assembly cylinder 37 to prevent the support cylinder 38 from squeezing the outer sheath of the optical fiber 4.

[0041] The fastening sleeve 31 is simultaneously fitted onto the assembly cylinder 37 and the optical fiber 4. In some embodiments, the fastening sleeve 31 is made of rubber, which gives the fastening sleeve 31 greater elastic wrapping ability, the purpose of which is to prevent the optical fiber 4 from falling out of the assembly cylinder 37.

[0042] The other end of the support cylinder 38 is provided with an annular groove 38-b and an annular step 38-c. The annular groove 38-b is formed by hollowing out the inner circumferential surface of the support cylinder 38 and is close to the outside of the support cylinder 38. The annular step 38-c is set on the inner annular surface of the support cylinder 38. The outer wall of the ferrule 36 is provided with a first step 36-a corresponding to the annular groove 38-b. The spring 34 is located between the first step 36-a and the annular step 38-c. The annular groove 38-b has a depth for the first step 36-a to move. The spring 34 is constrained by the first step 36-a and the first annular step 38-c. The ferrule 36 is used to assemble the fiber optic connector 32. When assembling with the equipment, the spring 34 can provide a stable connection force to ensure that the connection between the two will not loosen.

[0043] The inner shell 33 is fitted onto the support cylinder 38, and the inner shell 33 and the support cylinder 38 are connected by a snap-fit. The inner ring surface of the inner shell 33 is provided with a second limiting ring 33-a. The second limiting ring 33-a is opposite to the first step 36-a. In other words, the second limiting ring 33-a abuts against the insert 36 to prevent the insert 36 from detaching from the inner shell 33. The outer shell 7 is also connected to the inner shell 33 by a snap-fit ​​structure.

[0044] The dust cap 35 is fitted onto the fiber optic connector 32, which is fixed inside the ferrule 36.

[0045] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A traction mechanism suitable for fiber optic connectors, characterized in that, The application relates to a pulling ring dustproof cap and seat body for a fiber connector.

2. A pull mechanism for a fiber optic connector according to claim 1, wherein, The seat body is a waterproof nut, and the pulling ring dustproof cap is provided with a thread on the inner ring surface and is screwed with the waterproof nut.

3. A pull mechanism for a fiber optic connector according to claim 2, wherein, The pulling ring dustproof cap internally contains the whole stopper space.

4. A pull mechanism for a fiber optic connector according to claim 2, wherein, The waterproof rubber ring is sleeved on the fastening sleeve and is locked on the fastening sleeve through the locking member, so that the waterproof rubber ring is in close contact with the fastening sleeve.

5. A pull mechanism for a fiber optic connector according to claim 4, wherein, The locking member is of an integrated structure and is provided with an arc-shaped opening in the side wall.

6. A fiber optic connector comprising a housing and a stopper, the housing being fitted onto the stopper, characterized in that, The application relates to a pulling mechanism for a fiber connector.

7. A fiber optic connector according to claim 6, wherein, The stopper comprises an inner shell, a fiber joint, a spring, a fastening sleeve, a dustproof cap, a ferrule, an assembling cylinder, a supporting cylinder, and the assembling cylinder, the supporting cylinder, the inner shell, the outer shell and the supporting cylinder at two ends are all provided with openings and are hollow, the assembling cylinder is sleeved on one end of a fiber wire, one end of the supporting cylinder is embedded in the assembling cylinder, a first limiting ring is arranged on the outer ring surface of the supporting cylinder and abuts against the end surface of the assembling cylinder, the fastening sleeve is sleeved on the assembling cylinder and the fiber wire, the other end of the supporting cylinder is provided with an annular groove and an annular step, the annular groove is formed by hollowing the inner circumferential surface of the supporting cylinder and is close to the outside of the supporting cylinder, the annular step is arranged on the inner ring surface of the supporting cylinder, a first step corresponding to the annular groove is arranged on the outer wall of the ferrule, the spring is located between the first step and the annular step, the annular groove has a depth for the movement of the first step, the spring is constrained by the first step and the first annular step, the ferrule is used for assembling the fiber joint, the inner shell is sleeved on the supporting cylinder and is buckled with the supporting cylinder, a second limiting ring is arranged on the inner ring surface of the inner shell and is opposite to the first step, the outer shell is connected with the inner shell through a buckling structure, the dustproof cap is sleeved on the fiber joint, and the fiber joint is fixed in the ferrule.

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