阅读说明：本技术 一种转接器 (Adapter ) 是由 齐永恒 陈明 王旭涛 杨帅杰 刘乃常 韩云钊 李卫可 孙亚磊 于 2021-08-26 设计创作，主要内容包括：本发明涉及一种转接器,转接器包括转接器壳体、设于转接器壳体内的跳线部件,跳线部件包括前接触件、后接触件以及光纤；所述后接触件上设有后固定套,后固定套上设有卡槽；转接器壳体包括中间壳体,中间壳体包括沿上下方向对扣卡装的底座和盖板,底座上设有供后接触件前后贯穿的穿孔,穿孔的孔壁上设有径向延伸的连通槽,连通槽连通穿孔内外并用于与卡槽上下对应,所述插接端后壳体设于所述底座上；所述连通槽内沿上下方向活动装配有止挡件,所述止挡件可插入卡槽内以防止后接触件前后窜动,也可由卡槽中拔出以将后接触件向前拔出；所述盖板用于与所述止挡件挡止配合以防止止挡件由卡槽中脱出。(The invention relates to an adapter, which comprises an adapter shell and a jumper component arranged in the adapter shell, wherein the jumper component comprises a front contact piece, a rear contact piece and an optical fiber; the rear contact piece is provided with a rear fixed sleeve, and the rear fixed sleeve is provided with a clamping groove; the adapter shell comprises a middle shell, the middle shell comprises a base and a cover plate which are buckled and clamped in an up-and-down direction, a through hole for the rear contact piece to penetrate through is formed in the base, a communication groove extending in the radial direction is formed in the hole wall of the through hole, the communication groove is communicated with the inside and the outside of the through hole and used for corresponding to the clamping groove up and down, and the rear shell at the inserting end is arranged on the base; the connecting groove is internally and movably provided with a stop piece along the up-down direction, the stop piece can be inserted into the clamping groove to prevent the rear contact piece from moving back and forth, and can also be pulled out from the clamping groove to pull out the rear contact piece forwards; the cover plate is used for being matched with the stop piece in a stop mode so as to prevent the stop piece from being separated from the clamping groove.)

1. An adaptor, comprising:

the adapter shell (100) comprises a plugging end shell (101) at the front end, a plugging end shell (103) at the rear end and a middle shell (102) positioned in the middle, and a sealing matching part used for being in sealing plug-in connection with the connecting sleeve is arranged on the adapter shell (100);

the jumper component (400) is arranged in the adapter shell (100) and comprises a front contact piece (401) at the front end, a rear contact piece (402) at the rear end and an optical fiber (403) for connecting the front contact piece and the rear contact piece (402), wherein the front contact piece (401) is assembled in the plug end shell (101), and the rear contact piece (402) is inserted into the middle shell (102) and the opposite plug end shell (103);

the method is characterized in that: a rear fixed sleeve (406) is arranged on the rear contact piece (402), and a clamping groove (407) is arranged on the rear fixed sleeve (406);

the middle shell (102) comprises a base (106) and a cover plate (107) which are buckled and clamped in an up-down direction, a through hole (113) for the rear contact piece (402) to penetrate through is formed in the base (106), a communication groove (114) extending in the radial direction is formed in the hole wall of the through hole (113), the communication groove (114) is communicated with the inside and the outside of the through hole (113) and used for corresponding to the clamping groove (407) up and down, and the inserting end shell (101) is arranged on the base (106);

a stop piece (115) is movably assembled in the communication groove (114) along the up-down direction, the stop piece (115) can be inserted into the clamping groove (407) to prevent the rear contact piece (402) from moving back and forth, and can also be pulled out from the clamping groove (407) to pull out the rear contact piece (402) forwards;

the cover plate (107) is used for being matched with the stop piece (115) in a stopping way so as to prevent the stop piece (115) from falling out of the clamping groove (407).

2. The adaptor of claim 1, wherein: the base (106) comprises a U-shaped part with one side opened in the vertical direction, and the through hole (113) is formed in the rear side of the U-shaped part;

the plug-in end shell (101) is separately inserted on the U-shaped part along the vertical direction.

3. The adaptor of claim 2, wherein: the U-shaped part comprises a bottom plate (120), a left side plate (121) and a right side plate (122) which are respectively arranged at the left side and the right side of the bottom plate (120);

the jumper wire components (400) are arranged at intervals in the left-right direction, the plug-in end shell (101) is correspondingly provided with two left-right interval arrangements, the bottom plate (120) is provided with the spacing piece (116), the left side plate (121) and the right side plate (122) are arranged at intervals in the left-right direction, and the plug-in end shell (101) and the corresponding left side plate (121) or right side plate (122) or spacing piece (116) are correspondingly provided with the stop groove (117) and the stop protrusion (119).

4. The adaptor of claim 2, wherein: the U-shaped part comprises a bottom plate (120), a left side plate (121) and a right side plate (122) which are respectively arranged at the left side and the right side of the bottom plate (120);

the jumper component (400) is provided with one jumper component, the bottom plate (120) is provided with a long groove (124) extending left and right, the plug-in end shell (101) is provided with a stop plate (125), and the stop plate (125) is used for being inserted into the long groove (124);

the left-right length of the elongated slot (124) is greater than the left-right length of the stop plate (125) so that the plug end housing (101) can float left and right in the U-shaped portion.

5. The adaptor of claim 2 or 3 or 4, wherein: the seal fitting portion includes a positioning cylinder (200) integrally formed between a base (106) and a butt end housing (103).

6. The adaptor according to any one of claims 1 to 4, wherein: the plug end shell (101) comprises a plug end front shell (104) and a plug end rear shell (105), and an optical fiber passing groove (123) for placing an optical fiber (403) is formed in one side of the plug end rear shell (105).

7. The adaptor according to any one of claims 1 to 4, wherein: the cover plate (107) is provided with a clamping jaw (111) extending up and down, the clamping jaw (111) is provided with a locking window (112), and the base (106) is provided with a locking boss matched with the locking window (112) of the clamping jaw (111).

8. The adaptor according to any one of claims 1 to 4, wherein: the plug-in end shell (101) is provided with a locking clip (108) used for being connected with a shell of a cabinet socket, and the adapter shell (100) is provided with a pressing plate (300) used for pressing the locking clip (108) to realize unlocking;

flanges (110) are arranged on the left side and the right side of the pressing plate (300), and the flanges (110) are used for being matched with the locking clip (108) in a left-right stop mode so as to prevent the locking clip (108) and the pressing plate (300) from being staggered in the left-right direction.

9. The adaptor of claim 8, wherein: the cover plate (107) and the pressing plate (300) are integrally formed.

10. The adaptor according to any one of claims 1 to 4, wherein: be equipped with annular groove (408) on the fixed cover (406) in back among wire jumper part (400), be equipped with interior sealing washer (501) in annular groove (408), interior sealing washer (501) are used for sealing up with adapter casing (100) and cooperate in order to carry out waterproof.

Technical Field

The present invention relates to an adapter.

Background

In daily production and life, signals are often required to be led into or out of a cabinet through cables, a cabinet socket is arranged on a cabinet body of the cabinet, a cable plug is arranged at the end of each cable, and an adapter is arranged between the cabinet socket and the cable plug for adapting.

As shown in the present chinese patent application publication No. CN105576433A, the present adapter includes an adapter housing and a jumper component disposed in the adapter housing, where the adapter housing includes a front plug-in end housing (i.e., a front housing in the patent application), a rear plug-in end housing (i.e., a rear housing in the patent application), and a middle housing (i.e., a middle housing in the patent application), the jumper component includes a front contact (i.e., an adapter plug contact in the patent), a rear contact (i.e., an adapter socket contact in the patent), the plug-in end housing is fixed with a locking clip capable of being plugged and locked with a cabinet socket, and the plug-in end housing is provided with a locking groove capable of being matched and locked with the locking clip on a cable plug. Among the prior art, preceding contact passes through preceding fixed cover to be fixed on middle casing, and grafting end casing passes through preceding fixed cover and fixes preceding contact on middle casing, and the rear end of middle casing is equipped with back fixed cover, and the fixed setting of back contact is in back fixed cover, to the outside of inserting end casing cover at middle casing.

In the prior art, after the jumper wire component is installed in the adapter shell, when the rear contact element needs to be cleaned or repaired and is pulled forwards, the jumper wire component is limited by a backwards step on the middle shell, so that the rear contact element and the rear fixing sleeve cannot be pulled forwards; when the rear contact piece is pulled backwards, the rear contact piece is limited by the spring and cannot be pulled backwards. That is, the rear contact cannot be removed from the adapter housing either forward or rearward, and cleaning or rework cannot be achieved.

Disclosure of Invention

The invention aims to provide an adapter to solve the technical problem that cleaning and repairing cannot be performed due to the fact that a rear contact cannot be detached in the prior art.

In order to achieve the purpose, the technical scheme of the adapter provided by the invention is as follows: an adaptor, comprising:

the adapter shell comprises a plug-in end shell at the front end, a plug-in end shell at the rear end and a middle shell positioned in the middle, and a sealing matching part for being hermetically plugged in the connecting sleeve is arranged on the adapter shell;

the jumper wire component is arranged in the adapter shell and comprises a front contact piece at the front end, a rear contact piece at the rear end and optical fibers for connecting the front contact piece and the rear contact piece, the front contact piece is assembled in the plug-in end shell, and the rear contact piece is inserted into the middle shell and the plug-in end shell;

the rear contact piece is provided with a rear fixed sleeve, and the rear fixed sleeve is provided with a clamping groove;

the middle shell comprises a base and a cover plate which are buckled and clamped in an up-and-down direction, a through hole for the rear contact piece to penetrate through is formed in the base, a communication groove extending in the radial direction is formed in the hole wall of the through hole, the communication groove is communicated with the inside and the outside of the through hole and used for corresponding to the clamping groove up and down, and the inserting end shell is arranged on the base;

the connecting groove is internally and movably provided with a stop piece along the up-down direction, the stop piece can be inserted into the clamping groove to prevent the rear contact piece from moving back and forth, and can also be pulled out from the clamping groove to pull out the rear contact piece forwards;

the cover plate is used for being matched with the stop piece in a stop mode so as to prevent the stop piece from being separated from the clamping groove.

Has the advantages that: the front and back positions of the rear contact element are limited through the stop element, the rear contact element is prevented from moving forwards and backwards when the rear contact element is used, and after the stop element is removed, the rear contact element can be pulled out of the through hole of the base forwards, so that cleaning or repairing can be achieved. Under normal conditions, the stop piece is stopped by the cover plate and cannot be separated, normal work is guaranteed, the cover plate and the base are clamped in a split mode, repeated disassembly and use can be achieved, and the adapter shell cannot be damaged.

Preferably, the base comprises a U-shaped part with one side opened in the vertical direction, and the through hole is formed in the rear side of the U-shaped part;

the plug end shell is separately inserted on the U-shaped part along the vertical direction. The plug end shell is inserted in the U-shaped part in a split mode, the rear contact piece is conveniently taken out of the opening of the U-shaped part, operation is convenient, and after the plug end shell and the U-shaped part are split, the base, the plug end shell and the sealing matching portion can be integrally formed to facilitate demolding of the through hole.

Preferably, the U-shaped part comprises a bottom plate, a left side plate and a right side plate which are respectively arranged at the left side and the right side of the bottom plate;

the jumper wire components are arranged at intervals in the left-right direction, the plug-in end shell is correspondingly provided with two pieces which are arranged at intervals left and right, the bottom plate is provided with the spacing pieces, the left side plate and the right side plate are arranged at intervals left and right, and the plug-in end shell and the corresponding left side plate or right side plate or the spacing pieces are correspondingly provided with the stopping grooves and the stopping bulges. Through setting up backstop groove and backstop arch, can realize the fixed and front and back tensile of grafting end casing and base.

Preferably, the U-shaped part comprises a bottom plate, a left side plate and a right side plate which are respectively arranged at the left side and the right side of the bottom plate;

the jumper wire component is provided with one jumper wire component, the bottom plate is provided with a long groove extending left and right, the plug-in end shell is provided with a stop plate, and the stop plate is used for being inserted into the long groove;

the left and right lengths of the elongated slot are greater than the left and right lengths of the stop plate so that the spigot end housing can float left and right in the U-shaped portion. The plug end housing is capable of floating side-to-side in the U-shaped portion such that the plug end housing is capable of aligning with the locking slot in the cabinet receptacle.

Preferably, the seal fitting portion includes a positioning cylinder integrally formed between the base and the opposite plug housing. The positioning cylinder and the base are integrally formed, so that the processing is convenient and the whole size is small.

Preferably, the plug end housing includes a plug end front housing and a plug end rear housing, and one side of the plug end rear housing is provided with an optical fiber passing groove for placing optical fibers. After setting up the optic fibre groove, can make things convenient for putting into of optic fibre, only need assemble earlier when the preparation contact again in the grafting end casing grind, can not cause the damage to optic fibre moreover.

Preferably, the cover plate is provided with a clamping jaw extending up and down, the clamping jaw is provided with a locking window, and the base is provided with a locking boss matched with the locking window of the clamping jaw.

Preferably, the plug-in end shell is provided with a locking clip for connecting with a shell of the cabinet socket, and the adapter shell is provided with a pressing plate for pressing the locking clip to realize unlocking;

flanges are arranged on the left side and the right side of the pressing plate and are used for being matched with the left stop and the right stop of the locking clamp so as to prevent the locking clamp from being dislocated with the pressing plate along the left direction and the right direction. The flange can prevent the locking clip from being misplaced with the pressure plate left and right, and further unlocking failure is caused.

Preferably, the cover plate is integrally formed with the pressure plate.

Preferably, the fixed cover in back among the wire jumper part is equipped with the annular, be equipped with interior sealing washer in the annular, interior sealing washer is used for carrying out waterproof with adapter housing seal cooperation.

Drawings

Fig. 1 is a schematic structural diagram of an adapter 1 according to an embodiment of the present invention;

FIG. 2 is a front view of an embodiment 1 of the adapter of the present invention;

fig. 3 is a schematic structural diagram of a jumper component in embodiment 1 of the adaptor according to the present invention;

FIG. 4 is a schematic diagram of the cover plate and the pressing plate of the adapter of embodiment 1 according to the present invention;

fig. 5 is a schematic structural diagram of a base, a plug end housing, and a positioning cylinder in embodiment 1 of the adaptor according to the present invention;

FIG. 6 is a cross-sectional view of a front view of a base, a mating end housing, and a positioning cylinder of embodiment 1 of the adapter of the present invention;

fig. 7 is a schematic structural diagram of a housing after a plug end is inserted in embodiment 1 of the adaptor according to the present invention;

FIG. 8 is a schematic structural view of an adapter of embodiment 1 of the present invention with the cover plate and the pressing plate removed;

fig. 9 is a schematic diagram illustrating the fitting of the jumper member and the plug terminal housing in embodiment 1 of the adaptor according to the present invention;

FIG. 10 is a schematic view of a base, a positioning cylinder, and a mating end housing of embodiment 2 of the adapter of the present invention;

fig. 11 is a schematic diagram illustrating the engagement between the plug end housing and the stop plate in embodiment 2 of the adaptor according to the present invention;

FIG. 12 is a schematic view of the adapter of embodiment 2 of the present invention with the cover and the pressing plate removed;

fig. 13 is a schematic structural diagram of an adapter of embodiment 3 according to the present invention;

fig. 14 is a schematic diagram illustrating the engagement between the rear housing and the stop plate of the plug-end in embodiment 4 of the adaptor according to the present invention;

description of reference numerals:

100. an adapter housing; 101. a plug end housing; 102. a middle housing; 103. opposite insertion end shells; 104. a front plug-end housing; 105. a rear housing of the plug end; 106. a base; 107. a cover plate; 108. a locking clip; 109. a locking groove; 110. blocking edges; 111. a claw; 112. locking the window; 113. perforating; 114. a communicating groove; 115. a stopper; 116. a spacer; 117. a stopper groove; 118. a locking protrusion; 119. a stop projection; 120. a base plate; 121. a left side plate; 122. a right side plate; 123. passing through the optical fiber groove; 124. a long groove; 125. a stopper plate; 126. a stopper plate mounting groove; 200. positioning the cylinder; 201. an outer sealing ring; 300. pressing a plate; 400. a jumper member; 401. a front contact; 402. a rear contact; 403. an optical fiber; 404. a front fixing sleeve; 405. a spring; 406. a rear fixing sleeve; 407. a card slot; 408. a ring groove; 501. an inner seal ring; 502. and (6) aligning the sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The specific embodiment 1 of the adapter provided by the present invention:

as shown in fig. 1 to 9, the adaptor is used to realize the adaptor between the cabinet socket and the cable plug, wherein the front end of the adaptor is a plug end for connecting with the cabinet socket, and the rear end of the adaptor is a plug end for connecting with the cable plug. The adapter in this embodiment is a duplex adapter.

The adaptor includes an adaptor housing 100 and a jumper member 400 installed in the adaptor housing 100. The jumper component 400 is structured as shown in fig. 3, and the jumper component 400 includes a front contact element 401 at a front end, a rear contact element 402 at a rear end, and an optical fiber 403 connecting the two contact elements, wherein a front fixing sleeve 404 is fixedly sleeved on the front contact element 401, and a spring 405 is sleeved at the rear end of the front fixing sleeve 404. A rear fixing sleeve 406 is fitted over the rear contact member 402 and is located on the front side of the rear contact member 402. A clamping groove 407 is formed in the rear fixing sleeve 406, a ring groove 408 is formed behind the clamping groove 407, the clamping groove 407 is used for being matched with the stop piece 115 to achieve front and rear positioning of the rear contact piece 402, and the ring groove 408 is used for installing an inner sealing ring 501 to achieve sealing matching of the jumper wire part 400 and the adapter housing 100.

As shown in fig. 1 and 2, the adaptor housing 100 includes a plug end housing 101, an intermediate housing 102, and a counter-plug end housing 103, which are sequentially arranged from front to back, the plug end housing 101 is plugged with a housing of the cabinet socket in use, the counter-plug end housing 103 is plugged with a housing of the cable plug in use, and a sealing fit portion is provided between the intermediate housing 102 and the counter-plug end housing 103. The plugging end housing 101 comprises a plugging end front housing 104 and a plugging end rear housing 105 which are clamped together, the plugging end rear housing 105 is arranged on the middle housing 102, wherein a locking clip 108 is mounted on the plugging end front housing 104, the locking clip 108 is a locking clip 108 in a conventional LC plug, the locking clip 108 can be inserted into a cabinet socket to realize locking, and unlocking can be realized after the locking clip 108 is pressed downwards. There is forward annular step in casing 105 behind the plug end, plug end front casing 104 can be with preceding contact 401, preceding fixed cover 404 and the spring 405 behind preceding contact 401 top pressure on the annular step in casing 105 behind the plug end, and because clamp together between plug end front casing 104 and the casing 105 behind the plug end, can fix preceding contact 401 in casing 101 of the plug end, preceding contact 401 forms the plug monomer with casing 101 of the plug end together, the structure of the plug monomer is unanimous with prior art, no longer describe herein. The opposite spigot housing 103 has a locking slot 109.

The structure of the middle housing 102 is as shown in fig. 1, fig. 2 and fig. 5, the middle housing 102 includes a base 106 and a cover plate 107 which are buckled together in a split manner along the up-down direction, the structure of the base 106 is as shown in fig. 5, the base 106 is a square structure as a whole, the base 106 includes a U-shaped portion at the front end, and the rear housing 105 at the insertion end is arranged on the U-shaped portion in a split manner. The U-shaped part upper end and front end are uncovered, including bottom plate 120, left side board 121 and right side board 122, have all seted up two locking protrusion 118 in the outside of left side board 121 and right side board 122. Correspondingly, the left side and the right side of the cover plate 107 are both bent downwards to form clamping claws 111, the quantity of the clamping claws 111 is the same as that of the locking protrusions 118 and corresponds to that of the locking protrusions 118 one by one, the clamping claws 111 are provided with locking windows 112, the cover plate 107 can be clamped on the base 106 through the matching of the locking windows 112 and the locking protrusions 118, and the clamping claws and the locking protrusions can be separated.

The pressing plate 300 is integrally formed on the cover plate 107, the front end of the pressing plate 300 extends to the locking clip 108, the locking clip 108 can be pressed by pressing the pressing plate 300 downwards, and unlocking between the single plug and the cabinet socket is achieved. As shown in fig. 4, downwardly extending ribs 110 are integrally formed on the left and right sides of the front end of the pressing plate 300, and the ribs 110 can be in stop fit with the locking clips 108 in the left and right directions, so that the pressing plate 300 and the locking clips 108 are prevented from being dislocated in the left and right directions, and further unlocking failure is prevented.

Two through holes 113 extending back and forth are formed in the base 106, and the two through holes 113 are arranged at intervals in the left-right direction. A communication groove 114 is formed in the upper end hole wall of the through hole 113, the communication groove 114 extends in the radial direction of the through hole 113, and the communication groove 114 communicates the inside and the outside of the through hole 113. In use, the rear fixing sleeve 406 of the rear contact 402 is inserted into the through hole 113, and the locking groove 407 of the rear fixing sleeve 406 vertically corresponds to the communication groove 114. The adapter further includes a stopper 115, where the stopper 115 is a stopper, and the stopper 115 can be sequentially inserted into the communication groove 114 and the card groove 407, thereby defining the front and rear positions of the rear contact 402.

As shown in fig. 5, a spacer 116 is fixed to the front end of the bottom plate 120, wherein the spacer 116 is arranged at an interval with the left side plate 121 and the right side plate 122 in the left-right direction, so as to form two mounting ports, and the two mounting ports are respectively matched with the two plug units. Stop grooves 117 extending vertically are formed on the left and right sides of the spacer 116 and the left and right side plates 121, 122. Correspondingly, as shown in fig. 7, stopping protrusions 119 are respectively integrally formed on two sides of the rear housing 105 of the plug end, and the stopping protrusions 119 can be fittingly inserted into the stopping grooves 117 in the vertical direction, so that the fixation and tensile resistance of the plug end are realized.

As shown in the figure, a through hole is formed in the middle of the plug end rear housing 105, and an optical fiber groove 123 is formed in one side of the plug end rear housing 105, so that an optical fiber 403 in the jumper component 400 can be placed into the through hole 113 from one side of the plug end rear housing 105, and the situation that the rear contact 402 is inconvenient to be inserted when one end is inserted is avoided.

As shown in fig. 1 to 6, the seal fitting includes a positioning cylinder 200, and an outer seal ring 201 mounted outside the positioning cylinder 200. Because the connection end rear shell 105 and the base 106 at the position A are assembled in a split manner, the positioning cylinder 200 and the base 106 are integrally formed, so that forward demoulding and core pulling are facilitated, the through hole 113 at the position B can be integrally formed, the positioning cylinder 200 and the connection end shell 103 are integrally formed, and the through holes 113 corresponding to the through holes 113 in the base 106 are formed in the positioning cylinder 200 and the connection end shell 103. An alignment sleeve 502 is also secured within the positioning cylinder 200 and the through bore 113 of the opposing plug housing 103 to allow for centered alignment of the rear contact 402.

When the jumper wire connector is used, the inner sealing ring 501 is installed in the annular groove 408 of the rear fixing sleeve in the jumper wire part 400, the rear contact piece 402 penetrates through the base 106, the positioning cylinder 200 and the through hole 113 of the opposite plug end shell 103, the clamping groove 407 on the rear fixing sleeve corresponds to the communicating groove 114 on the base 106, the stop piece 115 is inserted into the communicating groove 114 and the clamping groove 407, the front contact piece 401 is installed in the plug end shell 101, the plug end shell 101 is clamped on the base 106, the cover plate 107 is clamped on the base 106, after clamping, the cover plate 107 can prevent the stop piece 115 from being separated upwards, the outer sealing ring 201 is installed, and the whole adapter is installed on the machine cabinet. When cleaning the rear contact member 402, the cover plate 107 is removed from the base 106, and the stopper 115 is removed, so that the rear contact member 402 can be removed from the base 106.

It should be noted that the front, rear, left, right, upper and lower in the present embodiment are only relative concepts, and the structure is not limited.

Embodiment 2 of the adapter of the present invention:

as shown in fig. 10 to 12, the difference from embodiment 1 is that the adaptor of the present embodiment is a simplex adaptor including a single jumper member. Correspondingly, a single through hole 113 and a single communication groove 114 are formed in the base 106, and a long groove 124 extending left and right is formed in the bottom plate 120 of the U-shaped portion of the base 106.

As shown in fig. 11, a stop plate mounting groove 126 is formed in the rear insertion end housing 105, and a stop plate 125 is clamped in the stop plate mounting groove 126, wherein the left and right lengths of the stop plate mounting groove 126 are greater than the left and right lengths of the stop plate 125, so that the rear insertion end housing 105 is fixed to the base 106 in a front-and-back limiting manner and can float in the left and right directions, and the insertion end housing 101 can be smoothly inserted into the lock groove of the cabinet socket.

Embodiment 3 of the adapter of the present invention:

as shown in fig. 13, the difference from embodiment 2 is that in this embodiment, there are three locking projections on each side of the base 106.

Embodiment 4 of the adapter of the present invention:

as shown in fig. 14, the difference from embodiment 2 is that, in the present embodiment, a stopper plate 125 is integrally formed on the plug-end rear housing 105.

Embodiment 5 of the adapter of the present invention:

the difference from embodiment 1 is that in embodiment 1, the cover plate and the pressure plate are integrally formed. In this embodiment, the cover plate and the pressing plate may be fixed together separately, for example, by bonding. In other embodiments, the pressure plate may be located on the positioning cylinder or elsewhere in the adapter housing.

Embodiment 6 of the adapter of the present invention:

the difference from the embodiment 1 is that in the embodiment 1, the left and right sides of the pressing plate are provided with flanges. In the embodiment, the flanges are cancelled, and the locking clamp and the pressure plate are not easy to be dislocated left and right even if the flanges are not arranged in normal use.

Embodiment 7 of the adapter of the present invention:

the difference from the embodiment 1 is that in the embodiment 1, the cover plate is provided with a claw, the claw is provided with a locking window, the base is provided with a locking boss, and the cover plate and the base are clamped together. In this embodiment, also change the locking window on the jack catch into locking boss, realize the chucking through the cooperation of the locking boss on jack catch, the base. In other embodiments, locking windows are arranged on the left side plate and the right side plate of the base, and locking bosses are arranged on the clamping claws to realize clamping and locking.

Embodiment 8 of the adapter of the present invention:

the difference from embodiment 1 is that in embodiment 1, the optical fiber through groove is provided on the rear housing of the splicing end. In this embodiment, the optical fiber is eliminated from passing through the slot, so that the optical fiber and the rear contact member penetrate through the rear housing of the plug end from front to back.

Embodiment 9 of the adapter of the present invention:

the difference from embodiment 1 is that in embodiment 1, the seal-fitting portion includes a positioning cylinder integrally formed with the base. In this embodiment, can the components of a whole that can function independently between base and the positioning cylinder fixed, for example adopt the mode of adorning by force, keep off the base and fix the fixed back of cylinder components of a whole that can function independently, can integrated into one piece between casing and the base behind the grafting end, keep off behind the grafting end during casing and base integrated into one piece, the base can set up the U-shaped part, and the upper end is no longer uncovered promptly. In other embodiments, the sealing engagement portion may be a collar that is fixedly disposed on the opposite plug housing.

Embodiment 10 of the adapter of the present invention:

the difference from embodiment 1 is that in embodiment 1, the stopper is a block. In this embodiment, the stopper is a stopper pin.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.