An outdoor adapter

Abstract

The application discloses an outdoor adapter, which comprises an outer shell body with two open ends and a hollow interior, a fixing seat one, a fixing seat two, a plug pin installed in the fixing seat one and the fixing seat two, a guide seat two installed on the outer side of the fixing seat two, an elastic piece, and a stop shaft sleeve installed on the outer side of the guide seat two, wherein a fixing piece is arranged on the outer side of the outer shell body, and the elastic piece is arranged between the fixing seat one and the stop shaft sleeve and sleeved on the outer side of the guide seat two. During installation, the fixing seat one, the fixing seat two and the guide seat are installed in the outer shell body, the plug pin is installed in the first plug pin seat and the second plug pin seat, the elastic piece is arranged between the fixing seat one and the stop shaft sleeve and sleeved on the outer side of the guide seat two, and the stop shaft sleeve is buckled with the outer shell body. The arrangement of the elastic piece makes the application easy to install, eliminates the influence of assembly gaps on the installation precision, and guarantees high assembly precision requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to an outdoor adapter, which is used for converting different mode optical fiber connections in outdoor applications. BACKGROUND

[0002] In optical communication systems, when used in outdoor applications, it is often necessary to convert different mode optical fiber signals. An outdoor optical fiber adapter plays an important role as a device for optical cable connection and switching, so that the optical energy output by the transmitting optical fiber can be maximally converted into the receiving optical fiber. The existing outdoor optical fiber adapter products are difficult to assemble, have low production efficiency, and the cost is multiplied. After the product is assembled, the product precision is not high due to the assembly gap, the quality is poor, the signal loss is large when the optical fiber connectors are plugged and matched with each other, and the reliability is low. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the present application provides an outdoor adapter.

[0004] The technical scheme adopted by the present application to solve its technical problems is: an outdoor adapter, comprising a housing body with two open ends and an internal cavity, a fixed seat one installed inside the housing body, a fixed seat two assembled and connected with the fixed seat one, a pin installed inside the fixed seat one and the fixed seat two, a guide seat two installed outside the fixed seat two, an elastic member for eliminating assembly gap, a stop shaft sleeve installed outside the guide seat two, a fixing member provided outside the housing body for fixing the housing body and a panel, the elastic member is arranged between the fixed seat one and the stop shaft sleeve and is sleeved outside the guide seat two, the stop shaft sleeve is provided with a hollow shaft sleeve body, a convex ring connected with the shaft sleeve body, a second elastic pressing arm arranged on the side surface of the shaft sleeve body, and a second elastic pressing buckle arranged on the second elastic pressing arm and facing the housing body.

[0005] Preferably, the inside of the housing body is provided with a first blind hole and a second blind hole respectively located at the two open ends, a first through hole is provided between the first blind hole and the second blind hole, an installation position one for installing the fixed seat one is formed between the second blind hole and the first through hole, a first internal thread is provided in the first blind hole, an introduction groove in communication with the installation position one and facilitating the installation of the fixed seat one, an inner boss one for limiting the elastic member, an outer boss one for installing the stop shaft sleeve, a limiting position, and a buckle hole for installing the stop shaft sleeve are provided in the second blind hole, the installation position one is provided with a limiting groove one for limiting the installation position of the fixed seat one and a foolproof position for limiting the installation direction of the fixed seat one.

[0006] Preferably, the outside of the housing body is provided with a first external thread and a flange structure, the fixing member is provided with a fixing nut corresponding to the first external thread, and the side of the flange structure facing the fixing member is provided with an O-ring.

[0007] Preferably, the outer side of the outer shell and at the opening end of the first blind hole is further provided with a locking frame two, the inner side of the shaft sleeve body is provided with a clearance three, and the side of the elastic pressing arm two at the clearance three is provided with a reinforcing rib.

[0008] Preferably, the fixed seat one is provided with a body one, a guide seat one connected to one side of the body one, a mounting position two for mounting the fixed seat two arranged on the other side of the body one, a mounting position three for mounting the guide seat two, a third through hole arranged at the center of the body one, and a foolproof block, the guide seat one is provided with a first pin seat with a first pin hole, the inner side of the guide seat one is provided with a chamfer one, the first pin hole is communicated with the first through hole, and the diameter of the first pin hole is smaller than the diameter of the first through hole.

[0009] Preferably, the mounting position two is provided with a fixed block one for positioning the fixed seat two and a positioning groove one, and the mounting position three is provided with a fixed column one for positioning the guide seat two, a positioning hole one, and a strip-shaped groove.

[0010] Preferably, the fixed seat two is provided with a body three, a second pin seat arranged at the center of the body three and having a second pin hole, a fixed block two, a positioning groove two, and an elastic pressing arm one arranged at the outer side of the second pin seat, and the elastic pressing arm one is provided with an elastic pressing buckle one facing the second pin seat.

[0011] Preferably, the guide seat two is provided with a body four, a guide frame connected to the body four, a mounting hole arranged in the body four and used for mounting the fixed seat two and the guide seat two, and a guide hole arranged in the guide frame and communicated with the mounting hole, the opening of the guide hole is provided with a chamfer two, the body four and the guide frame form a supporting table for supporting the elastic member, the lower side of the body four is provided with a positioning hole two, a fixed column two, and a strip-shaped protrusion, the outer side of the guide frame is provided with a clearance one, the inner side of the guide frame is provided with a clearance two, and the side wall of the guide frame is provided with a guide groove.

[0012] Preferably, it further comprises a first dust cover arranged at the outer side of the stop shaft sleeve and capable of sleeving with the guide seat two, a second dust cover sleeving with the outer shell, a connecting handle connected between the second dust cover and the outer shell and having a fixed ring at both ends, the second dust cover is provided with a dustproof cap at the end, a second external thread capable of being screwed with the outer shell, a locking frame one arranged between the second external thread and the dustproof cap, and a waterproof groove arranged at the front end of the second external thread, the waterproof groove is provided with a waterproof ring, and one of the fixed rings of the connecting handle is sleeved with the locking frame one.

[0013] Preferably, the elastic member is a spring corresponding to the shape of the guide seat two, and the cross section of the spring is circular or elliptical.

[0014] The application provides an outdoor adapter, the guide seat one and the guide seat two provide limiting support when the optical fiber connectors are plugged, the precision of the optical fiber connectors plugged into the application is high, when installed, the fixed seat one, the fixed seat two and the guide seat are installed in the outer shell, the insertion pin is installed in the first insertion pin seat and the second insertion pin seat, the elastic member is arranged between the fixed seat one and the stop shaft sleeve and is sleeved on the outside of the guide seat two, the stop shaft sleeve is buckled with the outer shell, the arrangement of the elastic member can guarantee the position degree of the fixed seat one, the fixed seat two and the guide seat between the outer shell and the stop shaft sleeve, the application is easy to install, the influence of the assembly gap on the installation precision is eliminated, the high-precision assembly requirement is guaranteed, the precision of the optical fiber connectors and the application when plugged and matched is guaranteed, and the loss of signal conversion is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application is further illustrated by combining the drawings and examples:

[0016] Figure 1 It is a structural schematic diagram of the application;

[0017] Figure 2 It is an explosion schematic diagram of the application;

[0018] Figure 3 It is a sectional view schematic diagram of the outer shell of the application;

[0019] Figure 4 It is a structural schematic diagram of the outer shell of the application;

[0020] Figure 5 It is a structural schematic diagram of the fixed seat one of the application;

[0021] Figure 6 It is a structural schematic diagram of the fixed seat two of the application;

[0022] Figure 7 It is a structural schematic diagram of the guide seat two of the application;

[0023] Figure 8 It is a structural schematic diagram of the guide seat two in another direction of the application;

[0024] Figure 9 It is a structural schematic diagram of the stop shaft sleeve of the application. DETAILED DESCRIPTION

[0025] REFERENCE Figures 1 to 9The application is achieved as follows: an outdoor adapter, comprising a shell body 1 with two open ends and a hollow interior, a first fixing seat 2 installed inside the shell body 1, a second fixing seat 3 assembled with the first fixing seat 2, a pin 4 installed inside the first fixing seat 2 and the second fixing seat 3, a guide seat 5 installed outside the second fixing seat 3, an elastic member 6 for eliminating assembly gap, a stop shaft sleeve 7 installed outside the guide seat 5, and a fixing member 8 provided outside the shell body 1 for fixing the shell body 1 with a panel, wherein the elastic member 6 is arranged between the first fixing seat 2 and the stop shaft sleeve 7 and sleeved outside the guide seat 5.

[0026] The interior of the shell body 1 is provided with a first blind hole 11 and a second blind hole 12 respectively located at the two open ends, a first through hole 17 is arranged between the first blind hole 11 and the second blind hole 12, and a mounting position one 121 for mounting the first fixing seat 2 is formed between the second blind hole 12 and the first through hole 17, the first blind hole 11 is provided with a first internal thread 111, the second blind hole 12 is provided with an introduction groove 122 communicated with the mounting position one 121 and facilitating mounting of the first fixing seat 2, an inner boss one 124 for limiting the elastic member 6, an outer boss one 125 for mounting the stop shaft sleeve 7, a limiting position 126, and a buckle hole 127 for mounting the stop shaft sleeve 7, the mounting position one 121 is provided with a limiting groove one 123 for limiting the mounting position of the first fixing seat 2 and two anti-fool positions 128 with different widths for limiting the mounting direction of the first fixing seat 2.

[0027] The outer side of the shell body 1 is provided with a first external thread 13 and a flange structure 14, the fixing member 8 is provided with a fixing nut 81 corresponding to the first external thread 13, the side of the flange structure 14 facing the fixing member 8 is provided with an O-ring 141, and the outer side of the shell body 1 and the opening end of the first blind hole 11 are further provided with a locking frame two 15. In actual application, the shell body 1 is arranged through the mounting position of the panel, the panel is tightly attached to the O-ring 141, and the locking fixing member 8 can fix the application on the panel, the arrangement of the O-ring 141 makes the application more tightly attached to the panel, and can prevent water or dust and other impurities from penetrating into the part of the application on the inner side of the panel from the outside of the panel. The flange structure 14 is arranged in the first external thread 13, and the two sides of the flange structure 14 can be provided with O-rings, so that the panel can be mounted on any side of the flange structure 14 according to actual needs.

[0028] The fixed seat one 2 is provided with a body one 21, a guide seat one 22 connected with one side of the body one 21, a mounting position two 23 for mounting the fixed seat two 3 arranged on the other side of the body one 21, a mounting position three 24 for mounting the guide seat two 5, a third through hole 25 arranged in the center of the body one 21, and a foolproof block 26 arranged on both sides of the body one 21 and corresponding to the foolproof position 128. The guide seat one 22 is provided with a first pin seat 221 with a first pin hole 223. The inner side of the guide seat one 22 is provided with a chamfer one 222 for easy introduction of the fiber connector. The first pin hole 223 is communicated with the first through hole 17. The diameter of the first pin hole 223 is smaller than that of the first through hole 17 so as to facilitate the pin 4 to enter the first pin hole 223. The mounting position two 23 is provided with a fixed block one 231 for positioning the fixed seat two 3 and a positioning groove one 232. The mounting position three 24 is provided with a fixed column one 241 for positioning the guide seat two 5, a positioning hole one 242, and a strip-shaped groove 243.

[0029] The fixed seat one 2 enters the mounting position one 121 through the introduction slot 122, and the foolproof block 26 enters the corresponding foolproof position 128, thereby ensuring that the fixed seat one 2 is installed in the correct position.

[0030] The limiting groove one 123 limits the body one 21 in the mounting position one 121. The chamfer one 222 is arranged to facilitate the smooth introduction of the fiber connector into the guide seat one 22 and the accurate insertion of the pin 4 into the first pin seat 221. The design of the guide seat one 22 limits the depth of the fiber connector in the first pin seat 221 in one direction, thereby avoiding the damage to the fiber connector in the other direction due to the excessive depth of the fiber connector in the first pin seat 221.

[0031] The fixed seat two 3 is provided with a body three 31, a second pin seat 32 arranged in the center of the body three 31 and having a second pin hole 37, a fixed block two 33, a positioning groove two 34, and a spring arm one 35 arranged on the outer side of the second pin seat 32. The spring arm one 35 is provided with a spring buckle one 36 facing the second pin seat 32 for buckling the fiber connector. The fixed seat two 3 is assembled into the mounting position two 23. The fixed block two 33 enters the positioning groove one 232, and at the same time, the fixed block one 231 enters the positioning groove two 34, thereby ensuring that the fixed seat two 3 is installed in the correct position in the mounting position two 23 and ensuring that the installation direction of the fixed seat two 3 is correct. When ultrasonic welding is required between the fixed seat two 3 and the fixed seat one 2, the welding area can be increased, thereby increasing the welding strength.

[0032] The second pin hole 37, the first pin hole 223 and the third through hole 25 are concentric, and the pin 4 is installed in the second pin hole 37 and the first pin hole 223 through the third through hole 25. The design of the elastic arm 35 ensures that the elastic buckle 36 can move within a certain range, so that the elastic buckle 36 can fix the optical fiber connector in the state of being mated with the application and release the buckle when the optical fiber connector is pulled out.

[0033] The stop position 38 is formed between the root of the elastic arm 35 and the body three 31, which can limit the depth of the optical fiber connector inserted into the second pin hole 37 in the direction, so as to avoid the damage to the optical fiber connector in the other direction caused by the excessive depth of the optical fiber connector inserted into the second pin hole 37.

[0034] The guide seat two 5 is provided with a quadrangular body four 51, a quadrangular guide frame 52 connected with the body four 51, a mounting hole 53 arranged in the body four 51 and used for mounting the fixed seat two 3 and the guide seat two 5, and a guide hole 54 arranged in the guide frame 52 and communicated with the mounting hole 53 and used for limiting the guide of the optical fiber connector. The opening of the guide hole 54 is provided with a chamfer two 541 facilitating the insertion of the optical fiber connector into the pin 4. The body four 51 and the guide frame 52 form a supporting table 55 for supporting the elastic member 6. The lower side of the body four 51 is provided with a positioning hole two 511 corresponding to the positioning column one, a fixed column two 512 corresponding to the positioning hole one 242, and a strip-shaped protrusion 513 corresponding to the strip-shaped groove 243. The outer side of the guide frame 52 is provided with a clearance one 521 facilitating the expansion and contraction of the elastic member 6. The inner side of the guide frame 52 is provided with a clearance two 522 providing space for the elastic arm one 35 and the elastic buckle one 36. The side wall of the guide frame 52 is provided with a guide groove 523 facilitating the insertion of the optical fiber connector into the pin 4 from the guide hole 54. The guide seat two 5 is mounted in the mounting position three 24 and is precisely positioned by being fixed in the positioning column one, the positioning hole one 242 and the strip-shaped groove 243 through the positioning hole two 511, the fixed column two 512 and the strip-shaped protrusion 513, so as to ensure the correct installation direction of the guide seat two 5 and increase the fusion area and the fusion strength when the guide seat two 5 and the fixed seat one 2 need to be ultrasonically welded.

[0035] The elastic member 6 is a quadrangular spring corresponding to the shape of the guide frame 52, and the cross section of the spring is circular. The elastic member 6 is sleeved on the outer side of the quadrangular guide frame 52 and is supported on the body four 51 and under the stop shaft sleeve 7.

[0036] The stop sleeve 7 is hollow and sleeved on the sleeve body 71 outside the guide seat two 5, the convex ring 72 connected with the sleeve body 71, the elastic pressing arm two 73 arranged on the side of the sleeve body 71, and the elastic pressing buckle two 74 arranged on the elastic pressing arm two 73 and towards the outer shell 1. The outer convex platform one 125 supports the convex ring 72, and the elastic pressing buckle two 74 is buckled in the buckle hole 127, so that the stop sleeve 7 is installed in the outer shell 1. The limiting position 126 limits that the elastic pressing arm two 73 and the elastic pressing buckle two 74 cannot be moved at will after being buckled in the buckle hole 127. The inner convex platform one 124 limits the movement space of the elastic member 6. The inside of the sleeve body 71 is provided with the elastic pressing arm two 73, the elastic pressing buckle two 74, the avoidance space three 75, which provides a movement space for the elastic pressing buckle two 74, so as to facilitate the installation and removal of the sleeve body 71. The reinforcing rib 751 is arranged on one side of the avoidance space three 75 to strengthen the rigidity of the elastic pressing arm two 73, so as to avoid the elastic pressing buckle two 74 from being broken in the process of being buckled in the buckle hole 127.

[0037] Further, the application further comprises a first dustproof cover 101 arranged outside the stop sleeve 7 and capable of sleeving with the guide seat two 5, a second dustproof cover 102 sleeving with the outer shell 1, a connecting handle 103 connecting the second dustproof cover 102 with the outer shell 1 and having a fixing ring 1031 at both ends, the second dustproof cover 102 is provided with a dustproof cap 1021 at one end, a second external thread 1022 capable of being screwed with the first internal thread 111, a locking frame one 1023 arranged between the second external thread 1022 and the dustproof cap 1021, and a waterproof groove 1024 arranged at the front end of the second external thread 1022, wherein the waterproof groove 1024 is provided with a waterproof ring 1025.

[0038] One of the fixing rings 1031 of the connecting handle 103 is sleeved in the locking frame one 1023, and the other fixing ring 1031 of the connecting handle 103 is sleeved in the locking frame two 15. When the optical fiber connectors are connected, the dustproof cap 1021 is twisted out, and the dustproof cap 1021 and the outer shell 1 are connected together, so that the dustproof cap 1021 will not fall off, and the structure is more reliable. When the optical fiber connectors are not connected, the second external thread 1022 is screwed into the first internal thread 111, the inside of the outer shell 1 is pressed against the waterproof ring 1025, and the dustproof and waterproof effects are good, and the threaded connection operation is convenient.

[0039] In application, the SC optical fiber connector is inserted into the first pin seat 221 from the first blind hole 11, and the LC optical fiber connector is inserted into the second pin seat 32 from the guide seat two 5, so that the conversion between different mode signals can be completed. The application can realize the conversion between different optical fiber mode signals, and different mode optical fiber connectors for connection can be distinguished by using different colors of the fixed seat one 2 and the guide seat two 5.

[0040] In the application: the guide seat one 22, guide seat two 5 provides limit support when the optical fiber connector is inserted, the precision of the optical fiber connector inserted into the application is high, when installing, the pin 4 is installed in the first pin seat 221, the second pin seat 32, the fixed seat two 3 and the guide seat two 5 are installed on the fixed seat one 2 and then are ultrasonically welded together into a semi-finished product, the semi-finished product welded by ultrasonic is installed into the installation position one 121, the elastic member 6 is sleeved on the outer shell of the guide frame 52, finally, the stop shaft sleeve 7 is buckled with the outer shell 1, and the assembly is completed.

[0041] The elastic member 6 is arranged between the fixed seat one 2 and the stop shaft sleeve 7 and is sleeved on the outside of the guide seat two 5, the stop shaft sleeve 7 is buckled with the outer shell 1, the arrangement of the elastic member 6 can guarantee the position degree of the fixed seat one 2, the fixed seat two 3 and the guide seat between the outer shell 1 and the stop shaft sleeve 7, and make the stop shaft sleeve 7 provide a buffer space in the outer shell 1, so that the application is easy to install, and the precision of the optical fiber connector and the application when being inserted and matched with each other is guaranteed, and the loss of signal conversion is reduced.

[0042] In the application, the fixed seat one 2, the fixed seat two 3, the guide seat two 5, the stop shaft sleeve 7 and the guide seat two 5 are not stable in position due to the assembly gap required by assembly, the elastic member 6 generates a counterforce on the stop shaft sleeve 7 and the guide seat two 5 in the up-down direction, the influence of the assembly gap on the installation precision is eliminated, and the high-precision requirement of assembly is guaranteed.

Claims

1. An outdoor adapter, characterized in that: The outer shell (1) includes an open-end, hollow shell. Inside the shell (1) are a first fixing seat (2), a second fixing seat (3) connected to the first fixing seat (2), a pin (4) installed in the first fixing seat (2) and the second fixing seat (3), a second guide seat (5) installed on the outside of the second fixing seat (3), an elastic element (6) for eliminating assembly gaps, and a stop bushing (7) installed on the outside of the second guide seat (5). The outer shell (1) is provided with a fixing element (8) for fixing the shell (1) to the panel. The elastic element (6) is located between the first fixing seat (2) and the stop bushing (7) and is sleeved on the outside of the second guide seat (5). The stop bushing (7) has a hollow bushing body (71), a convex ring (72) connected to the bushing body (71), a spring-loaded arm (73) located on the side of the bushing body (71), and a spring-loaded buckle (74) located on the spring-loaded arm (73) and facing the shell (1). The outer casing (1) has a first blind hole (11) and a second blind hole (12) located at two open ends respectively. A first through hole (17) is provided between the first blind hole (11) and the second blind hole (12). A mounting position (121) for mounting a fixing seat (2) is formed between the second blind hole (12) and the first through hole (17). A first internal thread (111) is provided in the first blind hole (11), and a thread (121) is provided in the second blind hole (12) for mounting a fixing seat (2). The mounting position (121) is provided with a guide groove (122) for easy installation of the mounting base (2), an inner boss (124) for limiting the elastic element (6), an outer boss (125) for installing the stop bushing (7), a limiting position (126), and a buckle hole (127) for installing the stop bushing (7). The mounting position (121) is provided with a limiting groove (123) for limiting the installation position of the mounting base (2) and a foolproof position (128) for limiting the installation direction of the mounting base (2).

2. An outdoor adapter as described in claim 1, characterized in that... The outer side of the outer shell (1) is provided with a first external thread (13) and a flange structure (14). The fastener (8) is provided with a fastening nut (81) corresponding to the first external thread (13). The flange structure (14) is provided with an O-ring (141) on the side facing the fastener (8).

3. An outdoor adapter as described in claim 1, characterized in that... A locking frame 2 (15) is provided on the outer side of the outer shell (1) and at the opening end of the first blind hole (11). A clearance position 3 (75) is provided on the inner side of the bushing body (71). A reinforcing rib (751) is provided on one side of the clearance position 3 (75) of the spring arm 2 (73).

4. An outdoor adapter as described in claim 1, characterized in that... The fixing seat 1 (2) includes a body 1 (21), a guide seat 1 (22) connected to one side of the body 1 (21), a mounting position 2 (23) for mounting fixing seat 2 (3) on the other side of the body 1 (21), a mounting position 3 (24) for mounting guide seat 2 (5), a third through hole (25) in the center of the body 1 (21), and a foolproof block (26). The guide seat 1 (22) includes a first pin seat (221) with a first pin hole (223). The inner side of the guide seat 1 (22) includes a chamfer 1 (222). The first pin hole (223) communicates with the first through hole (17). The diameter of the first pin hole (223) is smaller than the diameter of the first through hole (17).

5. An outdoor adapter as described in claim 4, characterized in that... The second mounting position (23) is provided with a fixing block (231) and a positioning groove (232) for positioning the second mounting seat (3). The third mounting position (24) is provided with a fixing post (241), a positioning hole (242), and a strip groove (243) for positioning the second mounting seat (5).

6. An outdoor adapter as described in claim 1, characterized in that... The fixing seat 2 (3) includes a body 3 (31), a second pin seat (32) located in the center of the body 3 (31) and having a second pin hole (37), a fixing block 2 (33), a positioning groove 2 (34), and a spring-loaded arm 1 (35) located on the outside of the second pin seat (32). The spring-loaded arm 1 (35) is provided with a spring-loaded buckle 1 (36) facing the second pin seat (32).

7. An outdoor adapter as described in claim 1, characterized in that... The guide seat 2 (5) is provided with a body 4 (51), a guide frame (52) connected to the body 4 (51), a mounting hole (53) provided in the body 4 (51) for installing the fixing seat 2 (3) and the guide seat 2 (5), and a guide hole (54) provided in the guide frame (52) and communicating with the mounting hole (53). The opening of the guide hole (54) is provided with a chamfer 2 (541). The body 4 (51) and the guide frame (52) form a support platform (55) for supporting the elastic element (6). The lower side of the body 4 (51) is provided with a positioning hole 2 (511), a fixing post 2 (512), and a strip protrusion (513). The outer side of the guide frame (52) is provided with a clearance position 1 (521), the inner side of the guide frame (52) is provided with a clearance position 2 (522), and the side wall of the guide frame (52) is provided with a guide groove (523).

8. An outdoor adapter as described in claim 1, characterized in that... It also includes a first dust cover (101) disposed on the outside of the stop bushing (7) and able to be fitted with the guide seat (5), a second dust cover (102) fitted with the outer shell (1), and a connecting handle (103) connecting the second dust cover (102) and the outer shell (1) and having fixing rings (1031) at both ends. The second dust cover (102) is provided with a dust cap (1021) at the end, a second external thread (1022) that can be threaded to the outer shell (1), a locking frame (1023) disposed between the second external thread (1022) and the dust cap (1021), and a waterproof groove (1024) disposed at the front end of the second external thread (1022). A waterproof ring (1025) is provided in the waterproof groove (1024). One of the fixing rings (1031) of the connecting handle (103) is fitted into the locking frame (1023).

9. An outdoor adapter as described in claim 1, characterized in that... The elastic element (6) is provided with a spring corresponding to the shape of the guide seat (5), and the cross section of the spring is circular or elliptical.

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