SC jumper wire joint spare part structure

Abstract

The invention relates to an optical fiber communication connection technology, in particular to an SC jumper connector spare part structure which comprises an outer shell and an inner shell, the outer shell is provided with four planes in the circumferential direction, retaining openings are symmetrically formed in one set of opposite faces, and single-side through grooves are symmetrically formed in the other set of opposite faces; the inner shell is symmetrically provided with a set of rotation stopping matching parts and a set of retreat stopping protrusions, and a set of rotation stopping platforms used for being matched with the rotation stopping matching parts are symmetrically arranged in the outer shell. The side, facing the shell, of the retaining protrusion is a conical face, the back face of the conical face is a flat and straight face, and the retaining protrusion is matched with the retaining opening. The inner shell and the outer shell which can be repeatedly disassembled and assembled can be recycled, the inner shell can only be inserted into the outer shell from one end of the outer shell all the time, the effect of single-direction assembly is achieved, and errors caused by repeated installation directions are avoided; and under the constraint of the rotation stopping matching part and the rotation stopping platform, the inner shell and the outer shell which are assembled together cannot rotate relatively, so that the assembly connection is more stable and is not easy to loosen.

Description

TECHNICAL FIELD

[0001] The application relates to an optical fiber communication connection technology, in particular to an SC jumper connector spare part structure. BACKGROUND

[0002] With the development of communication technology, laser information technology represented by optical fiber communication technology builds the framework of modern communication network and becomes an important part of information transmission. Emerging technologies such as Internet of Things, big data, virtual reality, artificial intelligence and 5G are constantly emerging, which puts forward higher requirements for information exchange and transmission. Under this background, the laying coverage rate of outdoor optical cables and jumpers increases year by year, and the related demand increases day by day.

[0003] Common types of optical fiber jumpers include LC, SC, FC and ST, and according to the grinding method, they can be divided into PC (flat) and APC (8-degree inclined surface). Generally, the connector is completely assembled with each part before grinding, and the assembled parts have a direction, so the 8-degree inclined surface of the ground APC type connector has a certain direction. In the case of damage to external components or some special use, the components need to be disassembled. The traditional spare part has two assembly directions, and careless or unfamiliar situations often cause the installation direction to be different from the initial installation direction, causing the 8-degree inclined surface of the APC connector to be opposite to the normal.

[0004] If the installation direction is wrong, the connector cannot be used normally, and the connector connection will also cause damage to the connector. The application refers to improving the components so that there is only one installation direction, which avoids the problems caused by repeated installation. SUMMARY

[0005] The application aims to provide an SC jumper connector spare part structure to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme:

[0007] An SC jumper connector spare part structure includes an outer shell and an inner shell, the outer shell has four planes in the circumferential direction, one set of opposite faces is symmetrically provided with a retreat stop opening, and the other set of opposite faces is symmetrically provided with a single-sided through groove, and the single-sided through groove penetrates one end of the outer shell.

[0008] A set of rotation stop matching parts and a retreat stop protrusion are symmetrically arranged on the inner shell, and a set of rotation stop platforms for matching the rotation stop matching parts are symmetrically arranged in the inner shell.

[0009] The retreat stop protrusion is a conical surface on one side of the outer shell, the back surface of the conical surface is a flat surface, and the retreat stop protrusion is matched with the retreat stop opening.

[0010] The SC jumper connector loose piece structure as described above: the locking piece is elastically slidably arranged in the retreat-preventing opening, and a tapered relief surface is formed on the side edge of the locking piece towards the inner shell; and the side of the locking piece away from the inner shell is a flat surface;

[0011] An unlocking push button is arranged on the outside of the outer shell and cooperates with the locking piece; the unlocking push button can drive the locking piece to move towards the outer surface of the outer shell.

[0012] The SC jumper connector loose piece structure as described above: an elastic cavity is arranged on the outer shell, an elastic block is slidably arranged in the elastic cavity, and a compression spring is further arranged in the elastic cavity; one end of the compression spring is in contact with the inner wall of the elastic cavity, and the other end of the compression spring is in contact with the elastic block;

[0013] The elastic block extends out of the elastic cavity towards the side of the retreat-preventing opening and is formed with a second relief surface, and the side edge of the locking piece towards the elastic block is formed with a first relief surface for cooperating with the second relief surface.

[0014] The SC jumper connector loose piece structure as described above: a cover plate is detachably mounted on the outside of the elastic cavity, and a flat stopper is formed on one end of the second relief surface close to the outer wall of the outer shell.

[0015] The SC jumper connector loose piece structure as described above: the unlocking push button cooperates with the locking piece through a pulling piece, a sliding groove is formed on the outer surface of the outer shell, and the unlocking push button is slidably arranged in the sliding groove;

[0016] The pulling piece and the unlocking push button remain stationary during the relief of the locking piece, and when the unlocking push button slides along the sliding groove away from the retreat-preventing opening, the pulling piece can drive the locking piece to move towards the outer surface of the outer shell.

[0017] The SC jumper connector loose piece structure as described above: a through hole is formed on the side of the locking piece away from the elastic block, the pulling piece penetrates through the through hole, and a third relief surface is formed on one side of the through hole;

[0018] One end of the pulling piece is formed with a fourth relief surface for cooperating with the third relief surface, and the other end of the pulling piece is connected with the unlocking push button.

[0019] The SC jumper connector loose piece structure as described above: a sliding channel is arranged between the sliding groove and the retreat-preventing opening, and the sliding channel penetrates through the sliding groove and the retreat-preventing opening;

[0020] The pulling piece is slidably arranged on the outer shell through the sliding channel.

[0021] As described above, the SC jumper connector component structure is as follows: the end of the pulling member away from the locking member has a snap-fit ​​portion, and the end of the unlocking push button that passes through the slide groove and extends into the slide channel is connected to the snap-fit ​​portion through a barbed structure.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the reusable inner shell and outer shell in the present invention can be recycled, and the inner shell can only be inserted into the outer shell from one end, achieving the effect of unidirectional assembly and avoiding repeated installation errors; and under the constraint of the anti-rotation fitting part and the anti-rotation platform, the inner shell and outer shell cannot rotate relative to each other after assembly, making the assembly connection more stable and less prone to loosening.

[0023] The outer shell and the inner shell can be locked together by the cooperation of the flat surface on one side of the locking part and the flat surface on the side of the anti-reverse protrusion; therefore, the outer shell does not need to undergo elastic deformation during the process of the inner shell being inserted into the outer shell.

[0024] Since the outer shell does not need to undergo elastic deformation during assembly, it makes assembly easier and reduces the risk of fatigue plastic deformation, collapse failure, or damage to the outer shell caused by openings. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the SC jumper connector components.

[0026] Figure 2 This is a schematic diagram of the disassembled inner and outer shells of the SC jumper connector.

[0027] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective.

[0028] Figure 4 This is a schematic diagram of the inner shell in the SC jumper connector component structure.

[0029] Figure 5 This is a top view of the assembled SC jumper connector components.

[0030] Figure 6 for Figure 5 A cross-sectional view along the MM direction.

[0031] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0032] Figure 8 for Figure 6 A three-dimensional view.

[0033] Figure 9 for Figure 6Another three-dimensional view.

[0034] Figure 10 For Figure 9 Enlarged view at B.

[0035] Figure 11 For Figure 9 The structure diagram after the lock, the elastic block, the compression spring, the cover plate, the pulling piece, and the unlocking push button are split.

[0036] Figure 12 For Figure 11 Enlarged view at C.

[0037] Figure 13 For Figure 11 Another three-dimensional view.

[0038] Figure 14 For Figure 13 Enlarged view at D.

[0039] In the figure: 1, the shell; 101, the rotation stopping platform; 102, the one-sided through groove; 103, the retreat stopping port; 104, the elastic cavity; 105, the sliding groove; 106, the sliding channel; 2, the inner shell; 201, the rotation stopping fitting part; 202, the retreat stopping protrusion; 3, the lock; 301, the give-way inclined surface; 302, the first inclined surface; 303, the third inclined surface; 4, the elastic block; 401, the second inclined surface; 402, the flat blocking part; 5, the compression spring; 6, the cover plate; 7, the pulling piece; 701, the fourth inclined surface; 702, the clamping part; 8, the unlocking push button. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0041] Please refer to Figures 1 to 14 As an embodiment of the present application, the SC jumper connector scattered structure includes a shell 1 and an inner shell 2, the shell 1 has four flat surfaces in the circumference, one set of opposite surfaces is symmetrically provided with a retreat stopping port 103, and the other set of opposite surfaces is symmetrically provided with a one-sided through groove 102, the one-sided through groove 102 penetrates one end of the shell 1;

[0042] The inner shell 2 is symmetrically provided with a set of rotation stopping fitting parts 201 and a retreat stopping protrusion 202, and the inside of the shell 1 is symmetrically provided with a set of rotation stopping platforms 101 for fitting with the rotation stopping fitting parts 201;

[0043] The retreat stopping protrusion 202 is a conical surface towards one side of the shell 1, the back of the conical surface is a flat surface, and the retreat stopping protrusion 202 is fitted with the retreat stopping port 103.

[0044] In this embodiment, when the inner shell 2 is inserted into the outer shell 1, the tapered surface on one side of the retreat-stop protrusion 202 first contacts one end of the outer shell 1; during further advancement of the inner shell 2, the tapered surface acts on the end of the outer shell 1, causing the two sides of the outer shell 1 to respectively elastically deform away from the single-sided through groove 102, ensuring that the retreat-stop protrusion 202 can smoothly enter the outer shell 1;

[0045] As the retreat-stop protrusion 202 on the outer wall of the inner shell 2 continuously and deeply enters the outer shell 1, the opening at one end of the outer shell 1 continuously increases until the retreat-stop protrusion 202 reaches the retreat-stop opening 103, and the elastically deformed outer shell 1 resets, clamping the retreat-stop protrusion 202 in the retreat-stop opening 103.

[0046] Because the side of the retreat-stop protrusion 202 facing away from the advancement direction is a flat surface, the outer shell 1 and the inner shell 2 cannot be separated along the axial direction; at the same time, the stop rotation platform 101 and the stop rotation matching part 201 are in close contact, constraining the inner shell 2 and the outer shell 1 after clamping from relatively rotating.

[0047] It can be foreseen that if it is necessary to separate the inner shell 2 and the outer shell 1, it is only necessary to exert an external force to pry the outer shell 1, causing the opening at one end of the outer shell 1 to continuously increase under the action of the single-sided through groove 102 until the retreat-stop protrusion 202 is separated from the retreat-stop opening 103.

[0048] In the present application, the repeatedly disassembled inner shell 2 and the outer shell 1 achieve recycling, and the inner shell 2 can only be inserted into the outer shell 1 from one end of the outer shell 1, achieving the effect of being able to be assembled in only one direction, avoiding errors in repeated installation directions; under the constraint of the stop rotation matching part 201 and the stop rotation platform 101, the inner shell 2 and the outer shell 1 after assembly cannot relatively rotate, the assembly connection is more stable, and it is not easy to loosen.

[0049] As a further scheme of the present application, in order to increase the disassembly convenience of the inner shell 2 and the outer shell 1, the following features are added on the basis of the above scheme:

[0050] Please refer to Figures 6 to 14 , the retreat-stop opening 103 is elastically slidably provided with a locking piece 3, the side of the locking piece 3 facing the inner shell 2 has a tapered gap-providing inclined surface 301, and the side of the locking piece 3 facing away from the inner shell 2 is a flat surface;

[0051] An unlocking push button 8 that cooperates with the locking piece 3 is arranged outside the outer shell 1; the unlocking push button 8 can drive the locking piece 3 to move towards the outer surface of the outer shell 1.

[0052] In this embodiment, the shell 1 and the inner shell 2 are locked by the cooperation of the flat surface on one side of the locking piece 3 and the flat surface on one side of the retreat-stop protrusion 202; therefore, the shell 1 can not be elastically deformed during the process of inserting the inner shell 2 into the shell 1.

[0053] When the tapered surface on one side of the retreat-stop protrusion 202 contacts the allowance inclined surface 301 on the inner edge of one side of the locking piece 3, the locking piece 3 is allowed to go up by the tapered surface on one side of the retreat-stop protrusion 202 extruding the allowance inclined surface 301 on the inner edge of one side of the locking piece 3; after the retreat-stop protrusion 202 passes the flat surface on one side of the locking piece 3, the locking piece 3 is instantaneously reset under the action of the elastic force, locking the retreat-stop protrusion 202.

[0054] Since the shell 1 does not need to be elastically deformed during the assembly process, on the one hand, the assembly difficulty is lower, and on the other hand, the risk of fatigue plastic deformation, collapse failure or damage of the shell 1 due to the opening is reduced; the significance of still retaining the single-side through groove 102 is that, if the locking piece 3 is jammed in the retreat-stop port 103, the shell 1 and the inner shell 2 can still be disassembled by applying external force to break the shell 1, so that the opening at one end of the shell 1 is continuously increased under the action of the single-side through groove 102.

[0055] As a further scheme of the present application, the shell 1 is provided with an elastic cavity 104, the elastic block 4 is slidably arranged in the elastic cavity 104, and the compression spring 5 is further arranged in the elastic cavity 104, one end of the compression spring 5 abutting against the inner wall of the elastic cavity 104, and the other end of the compression spring 5 abutting against the elastic block 4.

[0056] The side of the elastic block 4 facing the retreat-stop port 103 extends out of the elastic cavity 104 and is formed with a second inclined surface 401, and the outer edge of the locking piece 3 facing the elastic block 4 is formed with a first inclined surface 302 for cooperating with the second inclined surface 401.

[0057] In this embodiment, during the process of allowing the locking piece 3 to go up, the first inclined surface 302 and the second inclined surface 401 cooperate to further compress the compression spring 5; at the moment when the retreat-stop protrusion 202 passes the flat surface on one side of the locking piece 3, the compressed compression spring 5 releases the elastic potential energy to instantaneously drive the elastic block 4 to approach the locking piece 3, and the elastic block 4 instantaneously resets the locking piece 3 by cooperating with the first inclined surface 302 and the second inclined surface 401, locking the retreat-stop protrusion 202.

[0058] As a further scheme of the present application, the outer side of the elastic cavity 104 is detachably provided with a cover plate 6, and one end of the second inclined surface 401 close to the outer wall of the shell 1 is formed with a flat stop 402.

[0059] In this embodiment, the cover plate 6 is arranged to avoid the compression spring 5 from being exposed and bent when compressed, and the flat shoulder 402 is arranged to effectively prevent the locking member 3 from being excessively retracted, especially during the process of quickly inserting the inner shell 2 into the outer shell 1, to avoid the locking member 3 from being quickly retracted and separated from the stop opening 103 due to inertia.

[0060] As a further scheme of the present application, the unlocking push button 8 is matched with the locking member 3 through the pulling member 7, and a sliding groove 105 is arranged on the outer surface of the outer shell 1, and the unlocking push button 8 is slidingly arranged in the sliding groove 105.

[0061] The pulling member 7 and the unlocking push button 8 remain stationary during the retraction of the locking member 3, and when the unlocking push button 8 slides along the sliding groove 105 away from the stop opening 103, the locking member 3 can be moved to the outer surface of the outer shell 1 through the pulling member 7.

[0062] In this embodiment, the pulling member 7 is arranged to establish a matching bridge between the unlocking push button 8 and the locking member 3 in a non-rigid connection relationship. If a rigid connection relationship is adopted, the pulling member 7 and the unlocking push button 8 will also need to move away from the stop opening 103 during the retraction of the locking member 3, which will inevitably increase the retraction resistance of the locking member 3, thereby increasing the insertion resistance of the stop protrusion 202 and the assembly resistance of the inner shell 2 and the outer shell 1.

[0063] As a further scheme of the present application, a through hole is formed on the side of the locking member 3 away from the elastic block 4, the pulling member 7 penetrates through the through hole, and a third inclined surface 303 is formed on one side of the through hole.

[0064] One end of the pulling member 7 is formed with a fourth inclined surface 701 for matching with the third inclined surface 303, and the other end of the pulling member 7 is connected with the unlocking push button 8.

[0065] It should be noted that the opening size of the through hole is greater than the thickness of the pulling member 7.

[0066] In this embodiment, because the opening size of the through hole is greater than the thickness of the pulling member 7, the locking member 3 will not move the pulling member 7 when the locking member 3 is retracted upward. However, after the locking member 3 is reset, if the pulling member 7 is moved away from the stop opening 103 by pushing the unlocking push button 8, the locking member 3 can be moved to the outer surface of the outer shell 1 through the cooperation of the fourth inclined surface 701 and the third inclined surface 303.

[0067] As a further scheme of the present application, a slide 106 is arranged between the sliding groove 105 and the stop opening 103, and the slide 106 penetrates through the sliding groove 105 and the stop opening 103.

[0068] The pulling member 7 is arranged on the shell 1 through the sliding groove 106.

[0069] In this embodiment, because one end of the pulling member 7 is connected with the unlocking push button 8, and the pulling member 7 is in sliding fit with the sliding groove 106, the unlocking push button 8 can only slide in the sliding groove 105 and cannot be separated from the sliding groove 105.

[0070] As a further scheme of the present application, one end of the pulling member 7 away from the locking member 3 is formed with a clamping portion 702, and the unlocking push button 8 is connected with the clamping portion 702 through barb structure at one end penetrating into the sliding groove 106.

[0071] In this embodiment, the barb structure is used to realize that the pulling member 7 and the unlocking push button 8 are two independent physical structures and can be arranged in the sliding groove 106 and the sliding groove 105 respectively; if the pulling member 7 and the unlocking push button 8 are integrated, they cannot be penetrated into the sliding groove 106 from the sliding groove 105 or penetrated into the sliding groove 105 from the sliding groove 106.

[0072] The above embodiments are exemplary but not restrictive, and the technical solutions of the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application, which are all included in the present application.

Claims

1. A component structure for an SC jumper connector, characterized in that, It includes an outer shell (1) and an inner shell (2). The outer shell (1) has four planes in the circumferential direction. One set of opposite planes is symmetrically provided with anti-retraction openings (103), and another set of opposite planes is symmetrically provided with single-sided through grooves (102). The single-sided through grooves (102) penetrate one end of the outer shell (1). The inner shell (2) is symmetrically provided with a set of anti-rotation fitting parts (201) and anti-reverse protrusions (202), and the outer shell (1) is symmetrically provided with a set of anti-rotation platforms (101) for matching the anti-rotation fitting parts (201); The anti-reverse protrusion (202) has a tapered surface on the side facing the outer shell (1), and a flat surface on the back side of the tapered surface. The anti-reverse protrusion (202) is adapted to the anti-reverse opening (103).

2. The SC jumper connector component structure according to claim 1, characterized in that, The anti-reverse port (103) is elastically slidably provided with a locking member (3). The inner edge of the locking member (3) facing the inner shell (2) has a tapered relief slope (301), and the side of the locking member (3) away from the inner shell (2) is a flat surface. An unlocking push button (8) that cooperates with the locking member (3) is provided on the outside of the housing (1); the unlocking push button (8) can drive the locking member (3) to move toward the outer surface of the housing (1).

3. The SC jumper connector component structure according to claim 2, characterized in that, The outer shell (1) is provided with an elastic cavity (104), and an elastic block (4) is slidably disposed in the elastic cavity (104). A compression spring (5) is also provided in the elastic cavity (104). One end of the compression spring (5) abuts against the inner wall of the elastic cavity (104), and the other end of the compression spring (5) abuts against the elastic block (4). The elastic block (4) extends out of the elastic cavity (104) on the side facing the anti-reverse port (103) and forms a second inclined surface (401). The locking member (3) has a first inclined surface (302) formed on the outer edge of the side facing the elastic block (4) for cooperating with the second inclined surface (401).

4. The SC jumper connector component structure according to claim 3, characterized in that, A cover plate (6) is detachably installed on the outer side of the elastic cavity (104), and a flat stop (402) is formed at one end of the second inclined surface (401) near the outer wall of the outer shell (1).

5. The SC jumper connector component structure according to claim 3, characterized in that, The unlocking push button (8) cooperates with the locking member (3) through the pull member (7), and a sliding groove (105) is provided on the outer surface of the outer shell (1), and the unlocking push button (8) is slidably disposed in the sliding groove (105); During the repositioning process, the locking member (3) is kept stationary by the pulling member (7) and the unlocking push button (8). When the unlocking push button (8) slides along the slide groove (105) away from the stop port (103), the pulling member (7) can drive the locking member (3) to move towards the outer surface of the outer shell (1).

6. The SC jumper connector component structure according to claim 5, characterized in that, The locking member (3) has a through-hole on the side away from the elastic block (4), the pulling member (7) passes through the through-hole, and a third inclined surface (303) is formed on one side of the through-hole; One end of the pull member (7) is formed with a fourth inclined surface (701) for cooperating with the third inclined surface (303), and the other end of the pull member (7) is connected to the unlocking push button (8).

7. The SC jumper connector component structure according to claim 5, characterized in that, A slide rail (106) is provided between the slide groove (105) and the anti-reverse port (103), and the slide rail (106) passes through the slide groove (105) and the anti-reverse port (103); The traction member (7) is slidably mounted on the outer shell (1) via the slide rail (106).

8. The SC jumper connector component structure according to claim 7, characterized in that, The pull member (7) has a snap-fit ​​part (702) at one end away from the locking member (3), and the unlocking push button (8) extends through the slide groove (105) into the slide rail (106) and is connected to the snap-fit ​​part (702) by a barb structure.

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