Internal expansion type optical fiber connector and optical splitter

Abstract

The present invention discloses an internal expansion type optical fiber connector and optical splitter, comprising: a female connector, on which a connection groove is provided, and a fixing groove is symmetrically provided around the female connector; a fixing shell, on which an alignment groove is provided, in which a connection terminal is slidably provided, and a fixing assembly is symmetrically provided on the fixing shell, and the fixing assembly includes a sliding seat slidably provided vertically, and a deformation strip and a magnet are symmetrically provided on the sliding seat. The internal expansion type optical fiber connector and optical splitter provided by the invention utilizes a connection terminal slidably provided on the fixing shell, so that the fixing shell can be first plugged and aligned with the female connector, and then the connection terminal is slidably connected with the connection groove of the female connector, thereby avoiding deformation, skewing and damage of the connection terminal caused by the tilted insertion of the connection terminal into the connection groove due to the tolerance frame problem.

Description

Technical Field

[0001] The invention relates to the technical field of connecting joints, and in particular to an internal expansion type optical fiber joint and an optical splitter. Background Art

[0002] An optical splitter, also known as a beam splitter, is one of the important passive components in a fiber optic link. It is a fiber optic junction device with multiple input ports and multiple output ports. An optical splitter often outputs data through a fiber optic connector.

[0003] According to the publication number 2023.12.05, the publication (announcement) date: CN117170036A, a fiber laser back-stop QBH connector is disclosed, comprising: a socket, on which there are: two first grooves; a movable block, on which there is an exhaust duct connected to the first groove located above; a first air inlet, inside which there is a blocking block for blocking it symmetrically and movably arranged; a plug, on which there are: two second grooves. The fiber laser back-stop QBH connector provided by the invention, when connecting the socket and the plug, the plug is inserted into the socket, the second groove on the plug is connected with the first groove on the socket, forming two first air ducts, and the second air duct connects the two first air ducts together. When working, the connection between the plug and the socket generates heat, heating the air in the first air duct and the second air duct, the air expands due to the heat and flows upward, and is discharged from the exhaust duct on the movable block, the air in the first air duct and the second air duct is thin, forming a negative pressure, sucking cold air from the first air inlet, and cooling the connection between the plug and the socket.

[0004] In the prior art including the above-mentioned patent, during the connection process between the optical fiber plug and the optical splitter, the male plug is often manually aligned and plugged into the female plug of the optical splitter. In order to facilitate plugging and unplugging, there must be a certain tolerance frame between the alignment positions of the male plug and the female connector. Therefore, during the manual plugging process, the male plug may be inserted into the female connector at an angle, thereby causing the contact column inside the male plug to become skewed and damaged. Summary of the invention

[0005] The object of the present invention is to provide an internal expansion type optical fiber connector and an optical splitter to solve the above problems.

[0006] In order to achieve the above object, the present invention provides the following technical solution: an internal expansion type optical fiber connector and an optical splitter, comprising:

[0007] A connecting female head is provided with a connecting groove, and fixing grooves are symmetrically provided around the connecting female head;

[0008] A fixed shell is provided with an alignment groove, in which a connecting terminal is horizontally slidably arranged, and a fixed assembly is symmetrically arranged on the fixed shell, the fixed assembly includes a sliding seat arranged for vertical sliding, and a deformation bar and a magnet are symmetrically arranged on the sliding seat, wherein:

[0009] The fixing shell is plugged onto the connecting female head to align the sliding seat with the fixing groove, and then the sliding seat is driven to slide downward to make the deformation strip deform into an arc shape and expand in the fixing groove, and the connecting terminal is horizontally aligned with the connecting groove.

[0010] Preferably, it also includes a movable seat and a locking wheel rotatably arranged thereon, and the movable seat is vertically slidably assembled so that the locking wheel has the following two positions:

[0011] Contact position: The locking wheel contacts the peripheral side of the connection terminal and rolls;

[0012] Locking position: The locking wheel extends along with the moving seat to lock the connecting terminal in the connecting groove.

[0013] Preferably, it also includes a driving member and a transmission gear, the transmission gear is rotatably arranged in the fixed shell, the driving member is movably arranged on the fixed shell, and a first rack portion coupled with the transmission gear is arranged on the sliding seat, and the driving member is driven to move so that the second rack portion arranged on the driving member is coupled with the transmission gear and then drives the transmission gear to rotate.

[0014] Preferably, the driving member is connected to a sliding block via a first elastic member, the sliding block is horizontally slidably arranged on the fixed shell, and the driving member is pressed to slide vertically so that the second rack portion is coupled to the transmission gear.

[0015] Preferably, a toothed plate is horizontally slidably arranged in the fixed shell, a contact block is connected to the toothed plate by a flexible connecting member, a ramp portion is arranged on the driving member, a sealing strip is arranged on the peripheral side of the locking wheel on the movable seat, the locking wheel is located at the lower contact position, the gear ring portion on the locking wheel is coupled with the toothed plate, the toothed plate is driven to move horizontally so that the contact block contacts the ramp portion and becomes deformed and skewed, and the flexible contact portion contacts the peripheral side of the connecting female head to form a high-pressure chamber in the fixed shell.

[0016] Preferably, a stabilizing component is further included, which includes an outer pull wire, an inner pull wire and a winding roller, the deformation strip is formed by a plurality of plates connected by a middle hinge, the first ends of the outer pull wire and the inner pull wire respectively pass through the plates symmetrically about the middle hinge of the deformation strip to be fixedly connected to the magnet, the second end of the outer pull wire is wound around the winding roller, and the second end of the inner pull wire is fixedly connected to the sliding seat, wherein the sliding seat is driven to slide toward the fixed groove to allow the winding roller to rotate and release the outer pull wire.

[0017] Preferably, a moving block is horizontally slidably arranged on the contact block, and an overlapping hook is arranged on the moving block. The deformation strip is expanded and tightened in the fixed groove so that the winding roller and the overlapping hook are horizontally aligned, and the moving block is in a default state so that the overlapping hook overlaps the winding roller, the driving member is driven to move so that the sliding seat moves upward, and the driving member drives the moving block to slide so that the overlapping hook drives the winding roller to rotate and then disengage.

[0018] Preferably, the connecting female head is provided with a connecting groove connected to the connecting groove, a locking block is slidably arranged on the piston in the connecting groove, the connecting terminal is inserted into the connecting groove so that the locking block slides into the fixed groove, and the end of the locking block abuts between the plates of the deformation strip.

[0019] Preferably, arc-shaped concave walls are symmetrically arranged in the fixed groove, a contact tip is arranged in the middle of the bottom surface of the fixed groove, and a magnetic part is symmetrically arranged about the middle of the bottom surface of the fixed groove. The sliding seat is aligned with the fixed groove so that the two groups of magnets on the sliding seat are symmetrical about the contact tip, and the sliding seat is driven to slide downward so that the two groups of magnets are separated by the contact tip and are respectively adsorbed on the magnetic part.

[0020] An optical splitter comprises the internal expansion optical fiber connector described in the above technical solution.

[0021] In the above technical scheme, an internal expansion type optical fiber connector and optical splitter provided by the present invention have the following beneficial effects: the connecting terminal is slidably arranged on the fixed shell, so that the fixed shell can be first plugged and aligned with the connecting female head, and then the connecting terminal is slid and connected with the connecting groove of the connecting female head, thereby avoiding the deformation, crookedness and damage of the connecting terminal caused by the tilted insertion of the connecting terminal into the connecting groove due to the tolerance frame problem, and secondly, the sliding seat, deformation bar and magnet arranged on the fixed shell are used to expand and fix the fixed shell on the connecting female head, thereby improving the fixing stability of the fixed shell relative to the connecting female head when the connecting terminal slides, and the magnet is used to absorb and resist the outer side of the connecting female head to improve the stability of the fixed shell and the connecting female head when moving and plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0024] Figure 2 A schematic cross-sectional view of the overall structure provided for an embodiment of the present invention;

[0025] Figure 3 A cross-sectional working schematic diagram of the fixing housing and the connecting female head provided by the embodiment of the present invention being fixed to each other;

[0026] Figure 4 A schematic diagram of an exploded structure of a fixing assembly provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of a locking assembly, a tooth plate member and a contact block provided in an embodiment of the present invention;

[0028] Figure 6 The embodiment of the present invention provides Figure 2 A local enlarged schematic diagram of the middle A;

[0029] Figure 7 The embodiment of the present invention provides Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0030] Figure 8 The embodiment of the present invention provides Figure 2 A partial enlarged schematic diagram of point C in the middle;

[0031] Fig. 9 The embodiment of the present invention provides Figure 3 A partial enlarged schematic diagram of point D in the middle;

[0032] Fig.10 The embodiment of the present invention provides Figure 3 A partial enlarged schematic diagram of point E in the middle.

[0033] Description of reference numerals:

[0034] 1. Optical splitter; 11. Connecting female connector; 111. Connecting slot; 112. Fixing slot; 1121. Arc-shaped concave wall; 1122. Contact tip; 113. Connecting slot; 2. Fixing shell; 21. Alignment slot; 22. Wire protection part; 3. Connecting terminal; 31. Cable; 4. Fixing assembly; 41. Sliding seat; 411. First rack part; 42. Deformation strip; 43. Magnet; 44. Driving member; 441. Second rack part; 442. Slope part; 45. Transmission gear; 46. First Elastic member; 47, sliding block; 51, moving seat; 52, locking wheel; 521, gear ring; 53, second elastic member; 54, sealing strip; 61, outer pull line; 62, inner pull line; 63, winding roller; 71, tooth plate member; 72, flexible connecting member; 73, contact block; 731, flexible resistance part; 732, raised part; 74, moving block; 741, overlapping hook; 75, third elastic member; 8, unlocking member; 91, magnetic member; 92, locking block; 93, fourth elastic member. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0036] like Figure 1-10 As shown, an internal expansion type optical fiber connector and an optical splitter, comprising:

[0037] The connecting female connector 11 has a connecting groove 111 formed thereon, and fixing grooves 112 are symmetrically formed around the connecting female connector 11;

[0038] The fixed shell 2 is provided with an alignment groove 21, in which a connecting terminal 3 is horizontally slidably arranged, and a fixed assembly 4 is symmetrically arranged on the fixed shell 2, and the fixed assembly 4 includes a sliding seat 41 which is vertically slidably arranged, and a deformation strip 42 and a magnet 43 are symmetrically arranged on the sliding seat 41, wherein:

[0039] The fixing shell 2 is inserted into the female connector 11 to align the sliding seat 41 with the fixing groove 112 , and then the sliding seat 41 is driven to slide downward to deform the deformation strip 42 into an arc shape and expand in the fixing groove 112 , and the connecting terminal 3 is horizontally aligned with the connecting groove 111 .

[0040] Specifically, Figure 1As shown, the optical splitter 1 is provided with a connecting female head 11, and a fixing groove 112 is symmetrically provided on the peripheral side of the connecting female head 11, and a cable 31 is provided on the connecting terminal 3, and the connecting terminal 3 is horizontally slidably arranged in the alignment groove 21 of the fixed shell 2, and a fourth elastic member 93 is arranged in the fixed shell 2 to keep the sliding seat 41 in a default state. In the default state of the fixed shell 2, part of the deformation bar 42 and the magnet 43 extend into the alignment groove 21, and when the fixed shell 2 is moved and plugged into the outer side of the connecting female head 11, the magnet 43 is adsorbed and resists the movement of the peripheral side of the connecting female head 11, thereby improving the stability of the fixed shell 2 plugged into the connecting female head 11. When the fixed shell 2 is located on the female connector 11 and plugged into place, the sliding seat 41 is vertically aligned with the fixing groove 112. At this time, the sliding seat 41 can be driven to move vertically downward so that the deformation bar 42 and the magnet 43 move into the fixing groove 112, and the magnet 43 abuts against the fixing groove 112 so that the deformation bar 42 is compressed and deformed into an arc shape. At this time, the deformation bar 42 is tightened on the female connector 11 to complete the fixation between the fixed shell 2 and the female connector 11, and the connecting terminal 3 is horizontally aligned with the connecting groove 111. Then, the connecting terminal 3 can be horizontally slid to be inserted into the connecting groove 111 for connection. Furthermore, the presence of the sliding seat 41, the deformation bar 42 and the magnet 43 is utilized, so that the fixed shell 2 is first plugged and fixed on the connecting female head 11 to complete the fixation and align the connecting terminal 3 with the connecting groove 111, and then the connecting terminal 3 is slid to be inserted into the aligned connecting groove 111, thereby avoiding the connecting terminal 3 being inserted into the connecting groove 111 obliquely due to the tolerance frame problem, causing the connecting terminal 3 to be deformed, skewed and damaged.

[0041] Furthermore, a wire guard portion 22 is provided on the fixed shell 2 and is sleeved on the side of the cable 31 of the connecting terminal 3. The existence of the wire guard portion 22 can reduce the problem of bending of the cable 31, thereby improving the service life and transmission quality of the cable 31. Secondly, scale lines can be provided on the outside of the cable 31, so that the relative position between the wire guard portion 22 and the scale lines of the cable 31 can be used to obtain the sliding travel distance of the connecting terminal 3 to the connecting groove 111, which is convenient for controlling the connection stability between the connecting terminal 3 and the connecting groove 111 of the connecting female connector 11.

[0042] Furthermore, the fixed groove 112 is symmetrically provided with an arc-shaped concave wall 1121, the middle of the bottom surface of the fixed groove 112 is provided with a contact tip 1122, the bottom surface of the fixed groove 112 is symmetrically provided with a magnetic member 91 about the middle, the sliding seat 41 is aligned with the fixed groove 112 so that the two groups of magnets 43 on the sliding seat 41 are symmetrical about the contact tip 1122, and the sliding seat 41 is driven to slide downward so that the two groups of magnets 43 are separated by the contact tip 1122 and are respectively adsorbed on the magnetic member 91. Figure 7As shown, two groups of deformation bars 42 and magnets 43 are symmetrically arranged on the sliding seat 41, and when the sliding seat 41 is in the default state, the deformation bars 42 are all straight, and the magnets 43 are parallel to each other and the ends are attracted to each other. When the sliding seat 41 is driven to slide vertically downward so that the deformation bars 42 and the magnets 43 enter the fixed groove 112, the ends between the two magnets 43 are separated by the resistance of the resistance tip 1122, and the magnets 43 are attracted to the magnetic member 91 after separation, so that the deformation bars 42 are deformed into an arc shape under the pressure of the sliding seat 41 and the torsional force of the magnets 43. At this time, the deformation bars 42 are deformed to fit the arc-shaped concave wall 1121 to be expanded in the fixed groove 112, and the magnets 43 are attracted to the magnetic member 91 of the fixed groove 112, completing the fixed connection between the fixed shell 2 and the connecting female head 11, thereby improving the connection stability between the fixed shell 2 and the connecting female head 11.

[0043] In the above technical solution, the connecting terminal 3 is slidably arranged on the fixed shell 2, so that the fixed shell 2 can be first plugged and aligned with the connecting female head 11, and then the connecting terminal 3 is slid to be connected with the connecting groove 111 of the connecting female head 11, so as to avoid the connecting terminal 3 being tilted and inserted into the connecting groove 111 due to the tolerance frame problem, thereby preventing the connecting terminal 3 from being deformed, skewed and damaged. Secondly, the sliding seat 41, the deformation bar 42 and the magnet 43 arranged on the fixed shell 2 are used to expand and fix the fixed shell 2 on the connecting female head 11, so as to improve the fixing stability of the fixed shell 2 relative to the connecting female head 11 when the connecting terminal 3 slides, and the magnet 43 is used to absorb and resist the outer side of the connecting female head 11 to improve the stability of the fixed shell 2 and the connecting female head 11 when moving and plugging.

[0044] As another embodiment provided by the present invention, it also includes a movable seat 51 and a locking wheel 52 rotatably arranged thereon, and the movable seat 51 is vertically slidably assembled so that the locking wheel 52 has the following two positions:

[0045] Contact position: the locking wheel 52 contacts the connection terminal 3 and rolls sideways;

[0046] Locking position: The locking wheel 52 extends along with the moving seat 51 to lock the connecting terminal 3 in the connecting groove 111 .

[0047] Specifically, Figure 2As shown, two groups of movable seats 51 and locking wheels 52 are symmetrically slidably arranged about the connecting terminal 3, and a second elastic member 53 is also arranged in the fixed shell 2. The second elastic member 53 is used to drive the movable seat 51 to slide closer to the connecting terminal 3. When the connecting terminal 3 is located on the side away from the connecting groove 111, the second elastic member 53 drives the movable seat 51 to move so that the locking wheel 52 abuts against the peripheral side of the connecting terminal 3. When the connecting terminal 3 is driven to slide horizontally relative to the connecting groove 111, the locking wheel 52 abuts against the connecting terminal 3 and rolls, thereby improving the horizontal sliding stability of the connecting terminal 3, further aligning the sliding connecting terminal 3 with the connecting groove 111, and improving the safety of the connecting terminal 3 when plugging into the connecting groove 111.

[0048] When the connecting terminal 3 slides into the connecting groove 111 and is inserted into place, the connecting terminal 3 is no longer in contact with the locking wheel 52 due to the movement. At this time, the second elastic member 53 drives the movable seat 51 to slide so that the locking wheel 52 extends out and contacts the end surface of the connecting terminal 3 facing away from the connecting groove 111, thereby utilizing the extension of the locking wheel 52 to lock the connecting terminal 3 relative to the connecting groove 111, thereby improving the connection stability between the connecting terminal 3 and the connecting groove 111, and the connecting terminal 3, the connecting female connector 11 and the fixed shell 2 are locked into one to improve the connection stability of the entire connector.

[0049] Furthermore, an unlocking member 8 is rotatably provided on the connecting terminal 3. When the connecting terminal 3 needs to be pulled out from the connecting groove 111, the unlocking member 8 can be rotated so that the end of the unlocking member 8 rotates to push the locking wheel 52, thereby driving the locking wheel 52 and the movable seat 51 to slide vertically away from the connecting terminal 3. At this time, the locking wheel 52 is switched from the locking position to the interference position to release the horizontal sliding lock of the connecting terminal 3. The unlocking member 8 is used to quickly unlock the connecting terminal 3 to improve the removal efficiency.

[0050] As another embodiment provided by the present invention, it also includes a driving member 44 and a transmission gear 45. The transmission gear 45 is rotatably arranged in the fixed shell 2, and the driving member 44 is movably arranged on the fixed shell 2. A first rack portion 411 coupled with the transmission gear 45 is arranged on the sliding seat 41. The driving member 44 is driven to move so that the second rack portion 441 arranged on the driving member 44 is coupled with the transmission gear 45, and then drives the transmission gear 45 to rotate.

[0051] Specifically, Figure 4As shown, the first rack portion 411 of the sliding seat 41 is coupled to the transmission gear 45, and the driving member 44 is provided with a second rack portion 441. The driving member 44 is movable to drive the transmission gear 45 to rotate through the second rack portion 441. The transmission gear 45 rotates to drive the sliding seat 41 to slide vertically. When the fixed shell 2 is plugged into the outer side of the connecting female head 11, the sliding seat 41 is aligned with the fixed groove 112. At this time, the driving member 44 can be driven by hand to move to drive the sliding seat 41 through the transmission gear 45 drives the sliding seat 41 to slide vertically, so that the deformation strip 42 and the magnet 43 move into the fixing groove 112, and the magnet 43 contacts the fixing groove 112 so that the deformation strip 42 is compressed and deformed into an arc shape, and the deformation strip 42 is tightened on the connecting female head 11 to complete the fixation between the fixing shell 2 and the connecting female head 11. The driving member 44 is used as a manual adjustment control for the fixing component 4 and the connecting female head 11, which facilitates the rapid fixation and disassembly between the fixing shell 2 and the connecting female head 11 and improves the installation efficiency.

[0052] As another embodiment provided by the present invention, a sliding block 47 is connected to the driving member 44 through a first elastic member 46 . The sliding block 47 is horizontally slidably arranged on the fixed shell 2 , and the driving member 44 is pressed to slide vertically so that the second rack portion 441 is coupled to the transmission gear 45 .

[0053] Specifically, Figure 4 As shown, the driving member 44 is horizontally slidably arranged on the fixed shell 2 through the first elastic member 46 and the sliding block 47, and since the driving member 44 is connected to the sliding block 47 through the first elastic member 46, the driving member 44 can be pressed to drive the driving member 44 to overcome the elasticity of the first elastic member 46 to slide vertically, thereby causing the second rack portion 441 of the driving member 44 to move and couple with the transmission gear 45. At this time, the driving member 44 is pushed so that the driving member 44 drives the sliding seat 41 to slide vertically through the transmission gear 45, and when the driving member 44 is not pressed, the first elastic member 46 pulls the driving member 44 to move vertically so that the second rack portion 441 is coupled and separated from the transmission gear 45, thereby avoiding accidental movement of the driving member 44 and driving the sliding seat 41 to move, thereby preventing the fixing between the fixed shell 2 and the connecting female head 11 from failing, and further improving the fixing stability between the connecting female head 11 and the fixed shell 2.

[0054] As another embodiment provided by the present invention, a toothed plate member 71 is horizontally slidably arranged in the fixed shell 2, and a contact block 73 is connected to the toothed plate member 71 through a flexible connecting member 72, a ramp portion 442 is arranged on the driving member 44, and a sealing strip 54 located on the peripheral side of the locking wheel 52 is arranged on the movable seat 51, and the locking wheel 52 is located at the lower contact position, and the gear ring portion 521 on the locking wheel 52 is coupled with the toothed plate member 71, and the toothed plate member 71 is driven to move horizontally so that the contact block 73 contacts the ramp portion 442 and becomes deformed and skewed, and the flexible contact portion 731 contacts the peripheral side of the connecting female head 11 to form a high-pressure chamber in the fixed shell 2.

[0055] Specifically, Figure 5 As shown, the contact block 73 is connected to the tooth plate member 71 through the flexible connecting member 72, and when the locking wheel 52 is located at the abutting position, the tooth plate member 71 is coupled to the gear ring portion 521 of the locking wheel 52, as shown in FIG. Figure 2 As shown, when the connecting terminal 3 is located on the side away from the connecting groove 111, the toothed plate member 71, the flexible connecting member 72 and the contact block 73 are in a default state, and when the connecting terminal 3 is driven to slide closer to the connecting groove 111, the locking wheel 52 resists the rotation of the connecting terminal 3 and drives the toothed plate member 71 to slide horizontally in the opposite direction of the moving direction of the connecting terminal 3 through the gear ring portion 521, and the contact block 73 follows the sliding of the toothed plate member 71 and gradually contacts the slope portion 442 of the driving member 44, so that the contact block 73 is pushed by the slope portion 442 to cause the flexible connecting member 72 to deform, and the contact block 73 is tilted toward the side of the connecting female head 11, so that the flexible contact portion 731 contacts the peripheral side of the connecting female head 11. Since the sealing strip 54 is arranged on the peripheral side of the locking wheel 52 and contacts the peripheral side of the connecting terminal 3, the sealing strip 54 forms a seal on the peripheral side of the connecting terminal 3 away from the connecting groove 111, and the flexible contact portion 731 of the contact block 73 contacts the connecting female head 11 and moves away from the connecting female head 11. At this time, due to the flexible contact portion 731 and the sealing strip 54, the fixed shell 2, the sealing strip 54, the flexible contact portion 731 and the connecting female head 11 are surrounded to form a chamber. Due to the continuous movement of the flexible contact portion 731, the air pressure in the chamber gradually increases to form a high-pressure chamber, and the connecting terminal 3 is located in the high-pressure chamber. The tooth plate member 71, the flexible connecting member 72 and the contact block 73 are used to form a high-pressure chamber in the fixed shell 2. The high pressure in the chamber can prevent external water vapor or dust from invading the fixed shell 2 and causing corrosion to the connecting terminal 3, thereby improving the service life of the inside of the joint.

[0056] Wherein, flexible sealing strips should also be provided on both sides of the alignment groove 21 in the vertical direction, so as to improve the sealing performance inside the fixed shell 2 when the joint connection is completed.

[0057] As another embodiment provided by the present invention, it also includes a stabilizing component, which includes an outer pull wire 61, an inner pull wire 62 and a winding roller 63. The deformation strip 42 is formed by a plurality of plates connected by a middle hinge. The first ends of the outer pull wire 61 and the inner pull wire 62 respectively pass through the plates symmetrically about the middle hinge of the deformation strip 42 to be fixedly connected to the magnet 43. The second end of the outer pull wire 61 is wound around the winding roller 63, and the second end of the inner pull wire 62 is fixedly connected to the sliding seat 41, wherein the sliding seat 41 is driven to slide toward the fixed groove 112 so that the winding roller 63 rotates to release the outer pull wire 61.

[0058] Specifically, the deformation strip 42 is as follows Figure 7 As shown in the embodiment, the deformation strip 42 is composed of a plurality of plates connected to each other by hinges, and the magnet 43 is rotatably connected to the end of the deformation strip 42 away from the sliding seat 41, and as shown in the embodiment Figure 7 In the figure, the vertically downward end of the outer pull wire 61 and the inner pull wire 62 is the first end, and the other end is the second end, and the first ends of the outer pull wire 61 and the inner pull wire 62 are symmetrically extended through the plate about the middle hinge of the deformation strip 42 to be fixedly connected to the magnet 43. If the tension generated by the outer pull wire 61 and the inner pull wire 62 are equal, the deformation strip 42 can remain in a vertical strip shape, and if the tension on the outer pull wire 61 is reduced, the deformation strip 42 is easily affected by the tension difference between the outer pull wire 61 and the inner pull wire 62 and deforms and arches into an arc shape toward the side of the outer pull wire 61.

[0059] Since the second section of the outer pull wire 61 is wound on the winding roller 63, when the sliding seat 41 is driven to slide into the fixed groove 112, the winding roller 63 is driven to rotate to release the outer pull wire 61, thereby causing the deformation strip 42 to stably arch back to the opposite side to expand in the fixed groove 112, thereby completing the locking fixation between the fixed shell 2 and the connecting female head 11; and when it is necessary to separate the fixed shell 2 from the connecting female head 11, the sliding seat 41 is driven to slide away from the fixed groove 112, thereby causing the winding roller 63 to rotate and wind up the outer pull wire The outer pull wire 61 is used to pull the deformation strip 42 to return to the vertical state, and the winding roller 63, the outer pull wire 61 and the inner pull wire 62 are used to improve the stability of the deformation switching of the deformation strip 42 from the arc shape and the vertical state, so as to avoid the problem of movement jamming caused by accidental deformation of the deformation strip 42, and the pulling force of the outer pull wire 61 is used to drive the deformation strip 42 to switch from the arc shape to the vertical state, so as to reduce the scratch and wear between the deformation strip 42 and the fixing groove 112, and improve the service life of the deformation strip 42.

[0060] The winding roller 63 is rotatably disposed on the sliding seat 41 , and is provided with a friction wheel extending outward from the sliding seat 41 . When the sliding seat 41 is driven to slide vertically, the friction wheel of the winding roller 63 abuts against the fixed shell 2 to roll and reel in or release the outer pull wire 61 .

[0061] As another embodiment provided by the present invention, a moving block 74 is horizontally slidably arranged on the contact block 73, and a lap hook 741 is arranged on the moving block 74. The deformation strip 42 is expanded and tightened in the fixed groove 112 to horizontally align the winding roller 63 with the lap hook 741, and the moving block 74 is in a default state so that the lap hook 741 overlaps the winding roller 63. The driving member 44 is driven to move so that the sliding seat 41 moves upward, and the driving member 44 drives the moving block 74 to slide so that the lap hook 741 drives the winding roller 63 to rotate and then disengage.

[0062] Specifically, Figure 5 As shown, the movable block 74 is slidably arranged on the protrusion 732 of the contact block 73, and the contact block 73 is provided with a third elastic member 75 so that the movable block 74 is in a default state. When the fixed shell 2 is first connected to the connecting female plug 11, and the connecting terminal 3 is also inserted into the connecting groove 111 to complete the connection between the plugs, if it is necessary to separate and disassemble the connector, first use the unlocking member 8 to reset the locking wheel 52 to the abutting position, and then slide the connecting terminal 3 relative to the connecting groove 111 and pull it out. At this time, the toothed plate member 71 drives the contact block 73 to reset horizontally and move closer to the sliding seat 41. Since the winding roller 63 of the sliding seat 41 is horizontally aligned with the overlapping hook 741 at this time, the contact block 73 moves to make the overlapping hook 741 overlap on the winding roller 63. If the driving member 44 is pressed by hand to move vertically downward and then slides horizontally away from the sliding seat 41 to drive the sliding seat 41 When the locking cam 73 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state, so that the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state.

[0063] Secondly, the direction in which the third elastic member 75 drives the moving block 74 to return to its original position is opposite to the sliding return direction of the driving member 44. Fig. 9When the driving member 44 is manually pressed horizontally to the right to unlock the fixed shell 2, the driving member 44 drives the driving member 44 to overcome the third elastic member 75 to slide. If the hand of the person accidentally falls off the driving member 44, the moving block 74 is easily reset due to the vertical sliding upward push of the driving member 44 by the flexible connecting member 72, and the moving block 74 is driven by the third elastic member 75 to slide to re-hook the winding roller 63, preventing the sliding seat 41 from sliding upward and resetting, so that the fixing assembly 4 is still stuck in the fixing groove 112, thereby preventing the fixing shell 2 from accidentally falling off the driving member 44 during manual disassembly. The fixed shell 2 can still be reset and plugged into the connecting female head 11, avoiding the fixed shell 2 from being accidentally pulled out of the hand when it is manually disassembled and damaged.

[0064] As another embodiment provided by the present invention, a connecting groove 113 connected to the connecting groove 111 is provided on the connecting female head 11, and a locking block 92 is slidingly provided in the connecting groove 113 for the piston to slide. The connecting terminal 3 is inserted into the connecting groove 111 so that the locking block 92 slides into the fixing groove 112, and the end of the locking block 92 abuts between the plates of the deformation strip 42.

[0065] Specifically, Figure 6 As shown, the connecting groove 113 is connected to the connecting groove 111. When the connecting terminal 3 is moved and inserted into the connecting groove 111, the air pressure in the connecting groove 113 is increased due to the squeezing of the connecting terminal 3, so that the air pressure in the connecting groove 113 drives the locking block 92 to slide into the fixing groove 112, so that the locking block 92 is abutted between the plates of the arc-shaped deformation strip 42, so that the deformation strip 42 of the fixing assembly 4 is further limited and fixed by the locking block 92, thereby improving the fixing shell. 2 and the female connector 11. Secondly, when it is necessary to disassemble the fixed shell 2 and the female connector 11, the connecting terminal 3 must first be slid away from the connecting groove 111 so that the locking block 92 no longer conflicts with the deformation strip 42. Then the deformation strip 42 can be deformed and reset to the numerical shape to leave the fixed groove 112. The disassembly and assembly process of the connector is clear. The fixed shell 2 can only be removed after the connecting terminal 3 is removed, so as to avoid the connection terminal 3 being damaged by force due to the misoperation of removing the fixed shell 2 first. Furthermore, since there is high pressure in the connecting groove 113 and the inner side of the fixed shell 2 when the connector is connected, the connection terminal 3 is further prevented from being damaged by water vapor erosion. When disassembly is required, the high-pressure chamber in the fixed shell 2 on the right side of the connecting terminal 3 is connected to the outside world because the locking wheel 52 is reset to the conflicting position. At this time, the high pressure in the connecting groove 113 can facilitate the rapid removal of the connecting terminal 3, thereby improving the disassembly efficiency.

[0066] Working principle: first, move the fixed shell 2 to be plugged into the outer side of the connecting female head 11, and the magnet 43 is attracted and abuts against the peripheral side of the connecting female head 11 to move. When the fixed shell 2 is located on the connecting female head 11 and plugged into place, the sliding seat 41 is vertically aligned with the fixing groove 112. At this time, the pressing driving member 44 can be driven to drive the sliding seat 41 to move vertically downward through the transmission gear 45, and the deformation bar 42 and the magnet 43 move into the fixing groove 112, and the magnet 43 abuts against the fixing groove 112 to make the deformation bar 42 compressed and deformed into an arc shape. At this time, the fixed shell 2 is locked with the connecting female head 11;

[0067] Then, the connecting terminal 3 is driven to slide toward the connecting groove 111, and the locking wheel 52 resists the rotation of the connecting terminal 3 and drives the tooth plate member 71 to slide horizontally in the opposite direction of the moving direction of the connecting terminal 3 through the tooth ring portion 521, and the contact block 73 follows the sliding of the tooth plate member 71 and gradually contacts the slope portion 442 of the driving member 44, and the contact block 73 is tilted toward the side of the connecting female head 11 so that the flexible resisting portion 731 resists the peripheral side of the connecting female head 11, and the sealing strip 54 is used to prevent the connecting terminal 3 from being away from the connecting groove 111. The flexible abutting portion 731 of the contact block 73 abuts against the female connector 11 and moves away from the female connector 11. The continuous movement of the flexible abutting portion 731 causes the air pressure in the chamber to gradually increase to form a high-pressure chamber. The sliding and squeezing of the connecting terminal 3 causes the air pressure in the connecting groove 113 to increase. The air pressure in the connecting groove 113 drives the locking block 92 to slide into the fixing groove 112, thereby causing the locking block 92 to abut between the plates of the arc-shaped deformation strip 42.

[0068] When the connection terminal 3 is inserted into the connection groove 111, the connection terminal 3 moves so that the peripheral side is no longer in contact with the locking wheel 52. At this time, the second elastic member 53 drives the movable seat 51 to slide so that the locking wheel 52 extends out and contacts the end surface of the connection terminal 3 facing away from the connection groove 111, thereby locking the connection terminal 3 relative to the connection groove 111 by utilizing the extension of the locking wheel 52.

[0069] When it is necessary to disassemble the connecting terminal 3, the unlocking member 8 is first used to reset the locking wheel 52 to the interference position, and then the connecting terminal 3 is slid and pulled out relative to the connecting groove 111, and the contact block 73 moves so that the overlapping hook 741 overlaps the winding roller 63. If at this time, the driving member 44 is pressed by hand to move vertically downward and then slides horizontally away from the sliding seat 41 to drive the sliding seat 41 to slide away from the fixed groove 112, the bottom of the driving member 44 is first pressed against the moving block 74 and drives the moving block 74 to overcome the elastic force of the third elastic member 75 to slide. At the same time as the moving block 74 slides, the overlapping hook 741 drives the winding roller 63 to rotate due to the friction force to pre-wind the outer pull wire 61, that is, the deformation strip 42 is first deformed from an arc shape to a vertical shape, and then the sliding seat 41 slides away from the fixed groove 112, completing the unlocking of the fixed shell 2 and the connecting female head 11, and then the fixed shell 2 is removed.

[0070] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An internal expansion optical fiber connector, characterized in that: include: A connecting female head (11) is provided with a connecting groove (111), and fixing grooves (112) are symmetrically provided around the connecting female head (11); A fixed shell (2) is provided with an alignment groove (21), a connection terminal (3) is horizontally slidably arranged in the alignment groove (21), and a fixed assembly (4) is symmetrically arranged on the fixed shell (2), the fixed assembly (4) comprises a sliding seat (41) which is vertically slidably arranged, and a deformation strip (42) and a magnet (43) are symmetrically arranged on the sliding seat (41), wherein: The fixed shell (2) is plugged into the female connector (11) to align the sliding seat (41) with the fixed groove (112), and then the sliding seat (41) is driven to slide downward to deform the deformation strip (42) into an arc shape and expand in the fixed groove (112), and the connection terminal (3) is horizontally aligned with the connection groove (111); It also includes a movable seat (51) and a locking wheel (52) rotatably arranged thereon, wherein the movable seat (51) is vertically slidably assembled so that the locking wheel (52) has the following two positions: Contact position: the locking wheel (52) contacts the peripheral side of the connection terminal (3) and rolls; Locking station: the locking wheel (52) extends along with the movable seat (51) to lock the connecting terminal (3) in the connecting groove (111); The invention also comprises a driving member (44) and a transmission gear (45), wherein the transmission gear (45) is rotatably arranged in the fixed housing (2), the driving member (44) is movably arranged on the fixed housing (2), a first rack portion (411) coupled with the transmission gear (45) is arranged on the sliding seat (41), and the driving member (44) is driven to move so that a second rack portion (441) arranged on the driving member (44) is coupled with the transmission gear (45) to drive the transmission gear (45) to rotate; The driving member (44) is connected to a sliding block (47) via a first elastic member (46); the sliding block (47) is horizontally slidably arranged on the fixed shell (2); and the driving member (44) is pressed to slide vertically so that the second rack portion (441) is coupled to the transmission gear (45); A toothed plate (71) is horizontally slidably arranged in the fixed shell (2), a contact block (73) is connected to the toothed plate (71) via a flexible connecting member (72), a ramp portion (442) is arranged on the driving member (44), a sealing strip (54) is arranged on the movable seat (51) and is located on the peripheral side of the locking wheel (52), the locking wheel (52) is located at the lower contact position, and the toothed ring portion (521) on the locking wheel (52) is coupled with the toothed plate (71), the toothed plate (71) is driven to move horizontally so that the contact block (73) contacts the ramp portion (442) and becomes deformed and skewed, and the flexible contact portion (731) contacts the peripheral side of the connecting female head (11) and moves so that a high-pressure chamber is formed in the fixed shell (2); It also includes a stabilizing component, which includes an outer pull wire (61), an inner pull wire (62) and a winding roller (63), the deformation strip (42) is formed by connecting a plurality of plates through a middle hinge, the first ends of the outer pull wire (61) and the inner pull wire (62) respectively penetrate the plates symmetrically about the middle hinge of the deformation strip (42) to be fixedly connected to the magnet (43), the second end of the outer pull wire (61) is wound around the winding roller (63), and the second end of the inner pull wire (62) is fixedly connected to the sliding seat (41), wherein the sliding seat (41) is driven to slide toward the fixed groove (112) so that the winding roller (63) rotates to release the outer pull wire (61); The female connector (11) is provided with a connecting groove (113) connected to the connecting groove (111), a locking block (92) is slidably arranged in the connecting groove (113), the connecting terminal (3) is inserted into the connecting groove (111) so that the locking block (92) slides into the fixing groove (112), and the end of the locking block (92) abuts between the plates of the deformation strip (42).

2. The internal expansion type optical fiber connector according to claim 1, characterized in that: A moving block (74) is horizontally slidably arranged on the contact block (73), and an overlapping hook (741) is arranged on the moving block (74). The deformation strip (42) is expanded and tightened in the fixed groove (112) so that the winding roller (63) and the overlapping hook (741) are horizontally aligned, and the moving block (74) is located in a default state so that the overlapping hook (741) overlaps the winding roller (63). The driving member (44) is driven to move so that the sliding seat (41) moves upward, and the driving member (44) drives the moving block (74) to slide so that the overlapping hook (741) drives the winding roller (63) to rotate and then disengage.

3. The internal expansion type optical fiber connector according to claim 1, characterized in that: The fixed groove (112) is symmetrically provided with an arc-shaped concave wall (1121), a contact tip (1122) is provided in the middle of the bottom surface of the fixed groove (112), and a magnetic member (91) is symmetrically provided on the bottom surface of the fixed groove (112) about the middle, the sliding seat (41) is aligned with the fixed groove (112) so that the two groups of magnets (43) on the sliding seat (41) are symmetrical about the contact tip (1122), and the sliding seat (41) is driven to slide downward so that the two groups of magnets (43) are separated by the contact tip (1122) and are respectively adsorbed on the magnetic member (91).

4. An optical splitter, characterized in that: The invention comprises the internal expansion optical fiber connector according to any one of claims 1 to 3.

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