CN216389820U

CN216389820U - Rotary conduction connecting device for data telescopic wire

Info

Publication number: CN216389820U
Application number: CN202122380830.XU
Authority: CN
Inventors: 郑贵宝
Original assignee: Shenzhen Xinruifeng Electronic Technology Co ltd
Current assignee: Shenzhen Xinruifeng Electronic Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-26
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a rotary conduction connecting device for a data telescopic wire, which comprises a base, wherein the upper end of the base is fixedly connected with a connecting frame, the rear part of the upper end and the front part of the upper end of the connecting frame are respectively and fixedly connected with a rear cover plate and a front cover plate, the middle part of the upper end of the base is sequentially provided with a first connecting sheet, a second connecting sheet, a third connecting sheet, a fourth connecting sheet and a fifth connecting sheet from left to right, and the first connecting sheet, the second connecting sheet, the third connecting sheet, the fourth connecting sheet and the fifth connecting sheet are sequentially sleeved from inside to outside. The rotary conduction connecting device for the data expansion line breaks through the traditional situation that only charging and data functions are available but not CC PIN functions, achieves the function of quick charging, is simple in manufacturing process, can reduce manufacturing cost and improve yield, and meanwhile, in the production process, the number of connecting pieces is not limited to 5, can be increased to 9, and all functions of USB3.0 are achieved.

Description

Rotary conduction connecting device for data telescopic wire

Technical Field

The utility model relates to the technical field of wiring terminals, in particular to a rotary conduction connecting device for a data expansion line.

Background

The existing wiring terminal for the rotary conduction connection of the data expansion line generally comprises a PCB and two connectors, only four wiring pads are provided, the connector can not be compatible with the rotary quick-charging connector with more than four PINs, only the charging and data functions are provided, the CC PIN function is not provided, and the function is single. Therefore, we propose a connection device for connecting the data expansion line in a rotating and conducting manner.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a rotary conduction connecting device for a data telescopic wire, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a rotary conduction connecting device for a data telescopic line comprises a base, wherein the upper end of the base is fixedly connected with a connecting frame, the connecting frame is arranged along the edge of the base, the rear part of the upper end and the front part of the upper end of the connecting frame are respectively and fixedly connected with a rear cover plate and a front cover plate, the middle part of the upper end of the base is sequentially provided with a first connecting sheet, a second connecting sheet, a third connecting sheet, a fourth connecting sheet and a fifth connecting sheet from left to right, and the first connecting sheet, the second connecting sheet, the third connecting sheet, the fourth connecting sheet and the fifth connecting sheet are sequentially sleeved from inside to outside;

a central hole penetrates through the middle part of the upper end of the base, a first square hole penetrates through the left side and the right side of the central hole, a second square hole penetrates through the rear side of the first square hole, a third square hole penetrates through the front part of the upper end of the rear cover plate, a fourth square hole penetrates through the rear side of the third square hole, the third square hole and the fourth square hole are respectively positioned above the first square hole and the second square hole, and a first clamping groove, a second clamping groove, a third clamping groove, a fourth clamping groove and a fifth clamping groove are sequentially formed in the front part of the upper end of the base from left to right;

the left side of the front end of the first connecting sheet is clamped in the first clamping groove, the right part of the front end of the first connecting sheet is fixedly connected with a first middle lug, the left part of the upper end of the first connecting sheet and the rear part of the upper end of the first connecting sheet are respectively and fixedly connected with a second middle lug and a third middle lug, the left part of the upper end of the first connecting sheet and the rear part of the upper end of the first connecting sheet are respectively provided with a first opening and a second opening, and the second middle lug and the third middle lug are respectively positioned in the first opening and the second opening;

the right side of the front end of the second connecting sheet is clamped in the second clamping groove, the left side of the front end of the second connecting sheet is fixedly connected with a first side lug, the right side of the upper end of the second connecting sheet is fixedly connected with a second side lug, the right side of the upper end of the second connecting sheet is provided with a third opening, and the second side lug is positioned in the third opening;

the right side of the front end of the third connecting sheet is clamped in the third clamping groove, the left side of the front end of the third connecting sheet is fixedly connected with a third side convex sheet, the right side of the upper end of the third connecting sheet is fixedly connected with a fourth side convex sheet, the right side of the upper end of the third connecting sheet is provided with a fourth opening, and the fourth side convex sheet is positioned in the fourth opening;

the right side of the front end of the fourth connecting sheet is clamped in the fourth clamping groove, the left side of the front end of the fourth connecting sheet is fixedly connected with a fifth side convex sheet, the right side of the upper end of the fourth connecting sheet is fixedly connected with a sixth side convex sheet, the right side of the upper end of the fourth connecting sheet is provided with a fifth opening, and the sixth side convex sheet is positioned in the fifth opening;

the front end right side joint of No. five connection pieces is in No. five draw-in grooves the front end left side fixedly connected with side lug No. seven of No. five connection pieces the upper end right side fixedly connected with side lug No. eight of No. five connection pieces the upper end right side of No. five connection pieces has seted up No. six openings, side lug No. eight is located No. six openings the upper end rear side fixedly connected with lug No. four of No. five connection pieces the upper end rear side of No. five connection pieces is opened and is equipped with the opening No. seven, lug is located the opening No. seven in No. four.

Preferably, the third middle convex sheet penetrates through the third square hole and extends to the upper side of the rear cover plate, and the fourth middle convex sheet penetrates through the fourth square hole and extends to the upper side of the rear cover plate.

Preferably, the first side protruding piece, the third side protruding piece, the fifth side protruding piece, the seventh side protruding piece, the first middle protruding piece, the second side protruding piece, the fourth side protruding piece, the sixth side protruding piece and the eighth side protruding piece are all located between the rear cover plate and the front cover plate.

Preferably, the first opening and the second opening are located in the first connecting sheet, the third opening, the fourth opening and the fifth opening are located in the second connecting sheet, the third connecting sheet and the fourth connecting sheet respectively, and the sixth opening and the seventh opening are located in the fifth connecting sheet.

Preferably, the first opening and the second opening respectively penetrate through the left end face and the rear end face of the first connecting piece, the third opening, the fourth opening and the fifth opening respectively penetrate through the right end face of the second connecting piece, the right end face of the third connecting piece and the right end face of the fourth connecting piece, and the sixth opening and the seventh opening respectively penetrate through the right end face and the rear end face of the fifth connecting piece.

Compared with the prior art, the utility model has the following beneficial effects:

1. five connecting sheets including a first connecting sheet, a second connecting sheet, a third connecting sheet, a fourth connecting sheet and a fifth connecting sheet are arranged, and an old version PCB and two connectors are changed into five MODING modes, so that the USB2.0 data transmission is met, and the rotary quick-charging connector compatible with the four PIN and the five PIN has the advantages of simple process, few manufacturing procedures, high productivity and low cost; meanwhile, the terminal is added with five bonding pads from four bonding pads of an old version, the terminal is compatible with the common use of the four bonding pads, the PIN is added into the CC PIN, the quick charging scheme of the five-PIN single-pull rotary connector can be realized, the traditional situation that only charging and data functions are provided but no CC PIN function is broken, the quick charging function is realized, and the functions of detecting the CC PIN and the OTG are realized.

2. The manufacturing process of the first connecting sheet, the second connecting sheet, the third connecting sheet, the fourth connecting sheet and the fifth connecting sheet comprises the following steps: during the preparation, use the punching press to make each well lug and each side lug and form corresponding opening earlier, then cut off the separation simultaneously and form five independent connection pieces in plastic mould MODING, utilize the punching press to combine the manufacturing process who cuts off simultaneously in plastic mould MODING, can once only make a plurality of connection pieces, and can make the maximum quantity of connection piece reach 9, the manufacturing process is simple, can reduce manufacturing procedure, can reduce the cost of manufacture, and the output is increased, and simultaneously, in the production process, make the quantity of connection piece not be limited to 5, can make the quantity of connection piece increase to 9, realize all functions of USB3.0, and the practicality is high.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a base according to a first embodiment of the utility model;

FIG. 3 is a schematic structural diagram of a first connecting sheet, a second connecting sheet, a third connecting sheet, a fourth connecting sheet and a fifth connecting sheet according to the first embodiment of the present invention;

fig. 4 is a schematic structural view of a first connecting sheet, a second connecting sheet, a third connecting sheet, a fourth connecting sheet and a fifth connecting sheet according to a second embodiment of the present invention.

In the figure: 1. a base; 2. a connecting frame; 3. a rear cover plate; 4. a front cover plate; 5. a first connecting sheet; 6. A second connecting sheet; 7. a third connecting sheet; 8. a fourth connecting sheet; 9. a fifth connecting sheet; 11. a central bore; 12. a first square hole; 13. a second square hole; 14. a first card slot; 15. a second card slot; 16. a third card slot; 17. a fourth card slot; 18. a fifth card slot; 31. a third square hole; 32. a fourth square hole; 51. A first convex sheet; 52. middle tab number two; 53. middle tab number three; 54. an opening I; 55. a second opening; 61. a first side lobe; 62. side tab number two; 63. a third opening; 71. side tab number three; 72. side tab number four; 73. a fourth opening; 81. a fifth scoliosis tablet; 82. a lateral convex sheet of six; 83. Opening five; 91. a seventh scoliosis tablet; 92. side tab size eight; 93. a middle tab number four; 94. opening number six; 95. and a seventh opening.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1-3, a rotary conduction connecting device for a data extension line comprises a base 1, wherein the upper end of the base 1 is fixedly connected with a connecting frame 2, the connecting frame 2 is arranged along the edge of the base 1, the rear part of the upper end and the front part of the upper end of the connecting frame 2 are respectively and fixedly connected with a rear cover plate 3 and a front cover plate 4, the middle part of the upper end of the base 1 is sequentially provided with a first connecting sheet 5, a second connecting sheet 6, a third connecting sheet 7, a fourth connecting sheet 8 and a fifth connecting sheet 9 from left to right, and the first connecting sheet 5, the second connecting sheet 6, the third connecting sheet 7, the fourth connecting sheet 8 and the fifth connecting sheet 9 are sequentially sleeved from inside to outside;

a central hole 11 penetrates through the middle part of the upper end of the base 1, a first square hole 12 penetrates through the left side and the right side of the central hole 11, a second square hole 13 penetrates through the rear side of the first square hole 12, a third square hole 31 is formed in the front part of the upper end of the rear cover plate 3, a fourth square hole 32 penetrates through the rear side of the third square hole 31, the third square hole 31 and the fourth square hole 32 are respectively positioned above the first square hole 12 and above the second square hole 13, and a first clamping groove 14, a second clamping groove 15, a third clamping groove 16, a fourth clamping groove 17 and a fifth clamping groove 18 are sequentially formed in the front part of the upper end of the base 1 from left to right;

the left side of the front end of a first connecting piece 5 is clamped in a first clamping groove 14, a first middle convex piece 51 is fixedly connected to the right part of the front end of the first connecting piece 5, a second middle convex piece 52 and a third middle convex piece 53 are fixedly connected to the left part of the upper end and the rear part of the upper end of the first connecting piece 5 respectively, a first opening 54 and a second opening 55 are formed in the left part of the upper end and the rear part of the upper end of the first connecting piece 5 respectively, and the second middle convex piece 52 and the third middle convex piece 53 are located in the first opening 54 and the second opening 55 respectively;

the right side of the front end of the second connecting piece 6 is clamped in the second clamping groove 15, the left side of the front end of the second connecting piece 6 is fixedly connected with a first side convex piece 61, the right side of the upper end of the second connecting piece 6 is fixedly connected with a second side convex piece 62, the right side of the upper end of the second connecting piece 6 is provided with a third opening 63, and the second side convex piece 62 is positioned in the third opening 63;

the right side of the front end of the third connecting piece 7 is clamped in the third clamping groove 16, the left side of the front end of the third connecting piece 7 is fixedly connected with a third side convex piece 71, the right side of the upper end of the third connecting piece 7 is fixedly connected with a fourth side convex piece 72, the right side of the upper end of the third connecting piece 7 is provided with a fourth opening 73, and the fourth side convex piece 72 is positioned in the fourth opening 73;

the right side of the front end of the fourth connecting piece 8 is clamped in the fourth clamping groove 17, the left side of the front end of the fourth connecting piece 8 is fixedly connected with a fifth-side convex piece 81, the right side of the upper end of the fourth connecting piece 8 is fixedly connected with a sixth-side convex piece 82, the right side of the upper end of the fourth connecting piece 8 is provided with a fifth opening 83, and the sixth-side convex piece 82 is positioned in the fifth opening 83;

the right side of the front end of the fifth connecting piece 9 is clamped in the fifth clamping groove 18, the left side of the front end of the fifth connecting piece 9 is fixedly connected with a seventh convex side sheet 91, the right side of the upper end of the fifth connecting piece 9 is fixedly connected with an eighth convex side sheet 92, the right side of the upper end of the fifth connecting piece 9 is provided with a sixth opening 94, the eighth convex side sheet 92 is positioned in the sixth opening 94, the rear side of the upper end of the fifth connecting piece 9 is fixedly connected with a fourth convex sheet 93, the rear side of the upper end of the fifth connecting piece 9 is provided with a seventh opening 95, and the fourth convex sheet 93 is positioned in the seventh opening 95.

The third middle protruding piece 53 passes through the third square hole 31 and extends to the upper side of the rear cover plate 3, and the fourth middle protruding piece 93 passes through the fourth square hole 32 and extends to the upper side of the rear cover plate 3. The first side convex sheet 61, the third side convex sheet 71, the fifth side convex sheet 81, the seventh side convex sheet 91, the first middle convex sheet 51, the second middle convex sheet 52, the second side convex sheet 62, the fourth side convex sheet 72, the sixth side convex sheet 82 and the eighth side convex sheet 92 are positioned between the rear cover plate 3 and the front cover plate 4. Each lug can play the role of wire connection conduction. No. one opening 54 and No. two openings 55 all are located connection piece 5, No. three openings 63, No. four openings 73, No. five openings 83 are located connection piece 6, No. three connection piece 7 and No. four connection piece 8 respectively, No. six openings 94 and No. seven openings 95 all are located connection piece 9, can form the binding post of middle lug formula, convenient to use. The manufacturing process of the first connecting piece 5, the second connecting piece 6, the third connecting piece 7, the fourth connecting piece 8 and the fifth connecting piece 9 is as follows: when the manufacturing, use the punching machine punching press to make each well lug and each side lug and form corresponding opening earlier, then cut off the separation simultaneously and form five mutually independent connection pieces in plastic mould MODING, utilize the punching machine punching press to combine the manufacturing technology who cuts off simultaneously in plastic mould MODING, can once only make a plurality of connection pieces, and can make the maximum quantity of connection piece reach 9, realize all functions of USB3.0, the manufacturing technology is simple, can reduce manufacturing procedure, can reduce the cost of manufacture, and the output is improved, and the practicality is high.

Example two

As shown in fig. 4, a data extension line rotary conduction connecting device comprises a base 1, wherein the upper end of the base 1 is fixedly connected with a connecting frame 2, the connecting frame 2 is arranged along the edge of the base 1, the rear part of the upper end and the front part of the upper end of the connecting frame 2 are respectively and fixedly connected with a rear cover plate 3 and a front cover plate 4, the middle part of the upper end of the base 1 is sequentially provided with a first connecting sheet 5, a second connecting sheet 6, a third connecting sheet 7, a fourth connecting sheet 8 and a fifth connecting sheet 9 from left to right, and the first connecting sheet 5, the second connecting sheet 6, the third connecting sheet 7, the fourth connecting sheet 8 and the fifth connecting sheet 9 are sequentially sleeved from inside to outside;

the right side of the front end of the second connecting sheet 6 is clamped in the second clamping groove 15, the left side of the front end of the second connecting sheet 6 is fixedly connected with a first side convex sheet 61, the right side of the upper end of the second connecting sheet 6 is fixedly connected with a second side convex sheet 62, the right side of the upper end of the second connecting sheet 6 is provided with a third opening 63, and the second side convex sheet 62 is positioned in the third opening 63;

no. four front end right side joint of connection piece 8 is in No. four draw-in grooves 17, and No. five side tabs 81 of fixedly connected with on the left of the front end of No. four connection piece 8, at No. four connection piece 8, upper end right side fixedly connected with side tabs 82 of six, No. five openings 83 have been seted up on the upper end right side of No. four connection piece 8, side tabs 82 of six are located No. five openings 83:

the right side of the front end of the fifth connecting piece 9 is clamped in the fifth clamping groove 18, the left side of the front end of the fifth connecting piece 9 is fixedly connected with a seventh convex side sheet 91, the right side of the upper end of the fifth connecting piece 9 is fixedly connected with an eighth convex side sheet 92, the right side of the upper end of the fifth connecting piece 9 is provided with a sixth opening 94, the eighth convex side sheet 92 is positioned in the sixth opening 94, the rear side of the upper end of the fifth connecting piece 9 is fixedly connected with a fourth convex side sheet 93, the rear side of the upper end of the fifth connecting piece 9 is provided with a seventh opening 95, and the fourth convex side sheet 93 is positioned in the seventh opening 95.

The third middle protruding piece 53 passes through the third square hole 31 and extends to the upper side of the rear cover plate 3, and the fourth middle protruding piece 93 passes through the fourth square hole 32 and extends to the upper side of the rear cover plate 3. The first side convex sheet 61, the third side convex sheet 71, the fifth side convex sheet 81, the seventh side convex sheet 91, the first middle convex sheet 51, the second middle convex sheet 52, the second side convex sheet 62, the fourth side convex sheet 72, the sixth side convex sheet 82 and the eighth side convex sheet 92 are positioned between the rear cover plate 3 and the front cover plate 4. Each lug can play the role of wire connection conduction. The first opening 54 and the second opening 55 respectively penetrate through the left end face and the rear end face of the first connecting piece 5, the third opening 63, the fourth opening 73 and the fifth opening 83 respectively penetrate through the right end face of the second connecting piece 6, the right end face of the third connecting piece 7 and the right end face of the fourth connecting piece 8, and the sixth opening 94 and the seventh opening 95 respectively penetrate through the right end face and the rear end face of the fifth connecting piece 9, so that a side-lug type connecting terminal can be formed and is convenient to use. The manufacturing process of the first connecting piece 5, the second connecting piece 6, the third connecting piece 7, the fourth connecting piece 8 and the fifth connecting piece 9 is as follows: when the manufacturing, use the punching machine punching press to make each well lug and each side lug and form corresponding opening earlier, then cut off the separation simultaneously and form five mutually independent connection pieces in plastic mould MODING, utilize the punching machine punching press to combine the manufacturing technology who cuts off simultaneously in plastic mould MODING, can once only make a plurality of connection pieces, and can make the maximum quantity of connection piece reach 9, realize all functions of USB3.0, the manufacturing technology is simple, can reduce manufacturing procedure, can reduce the cost of manufacture, and the output is improved, and the practicality is high.

Through the first embodiment and the second embodiment, the middle convex sheet type connecting terminal and the side convex sheet type connecting terminal are respectively provided, the connection is convenient to select, and five connecting sheets including the first connecting sheet 5, the second connecting sheet 6, the third connecting sheet 7, the fourth connecting sheet 8 and the fifth connecting sheet 9 are arranged, and an old version PCB and two connectors are changed into five hardware MODING types, so that the rotary quick-charging connector compatible with the four PIN and the five PIN has the advantages of simple process, less processing sequence, high productivity and reduced cost; meanwhile, the terminal is added with five bonding pads from four bonding pads of an old version, the terminal is compatible with the common use of the four bonding pads, the PIN is added into the CC PIN, the quick charging scheme of the five-PIN single-pull rotary connector can be realized, the traditional situation that only charging and data functions are provided but no CC PIN function is broken, the quick charging function is realized, and the functions of detecting the CC PIN and the OTG are realized. The manufacturing process of the first connecting piece 5, the second connecting piece 6, the third connecting piece 7, the fourth connecting piece 8 and the fifth connecting piece 9 is as follows: when the USB connector is manufactured, the middle lug pieces and the side lug pieces are manufactured by punching of a punching machine, corresponding openings are formed, then five mutually independent connecting pieces are formed by cutting and separating simultaneously when the plastic mold MODING is used, a plurality of connecting pieces can be manufactured at one time by utilizing the manufacturing process that the punching of the punching machine is combined with the cutting simultaneously when the plastic mold MODING is used, the maximum number of the connecting pieces can reach 9, all functions of the USB connector 3.0 are realized, and the USB connector is high in practicability.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a rotatory connecting device that switches on of data flexible line, includes base (1), its characterized in that: the upper end of the base (1) is fixedly connected with a connecting frame (2), the connecting frame (2) is arranged along the edge of the base (1), the rear part of the upper end and the front part of the upper end of the connecting frame (2) are respectively and fixedly connected with a rear cover plate (3) and a front cover plate (4), the middle part of the upper end of the base (1) is sequentially provided with a first connecting sheet (5), a second connecting sheet (6), a third connecting sheet (7), a fourth connecting sheet (8) and a fifth connecting sheet (9) from left to right, and the first connecting sheet (5), the second connecting sheet (6), the third connecting sheet (7), the fourth connecting sheet (8) and the fifth connecting sheet (9) are sequentially sleeved from inside to outside;

a central hole (11) is formed in the middle of the upper end of the base (1), a first square hole (12) is formed in the left side and the right side of the central hole (11), a second square hole (13) is formed in the rear side of the first square hole (12), a third square hole (31) is formed in the front portion of the upper end of the rear cover plate (3), a fourth square hole (32) is formed in the rear side of the third square hole (31) in a penetrating mode, the third square hole (31) and the fourth square hole (32) are respectively located above the first square hole (12) and above the second square hole (13), and a first clamping groove (14), a second clamping groove (15), a third clamping groove (16), a fourth clamping groove (17) and a fifth clamping groove (18) are sequentially formed in the front portion of the upper end of the base (1) from left to right;

the left side of the front end of the first connecting piece (5) is clamped in the first clamping groove (14), the right part of the front end of the first connecting piece (5) is fixedly connected with a first middle lug (51), the left part of the upper end and the rear part of the upper end of the first connecting piece (5) are respectively and fixedly connected with a second middle lug (52) and a third middle lug (53), the left part of the upper end and the rear part of the upper end of the first connecting piece (5) are respectively provided with a first opening (54) and a second opening (55), and the second middle lug (52) and the third middle lug (53) are respectively positioned in the first opening (54) and the second opening (55);

the right side of the front end of the second connecting piece (6) is clamped in the second clamping groove (15), the left side of the front end of the second connecting piece (6) is fixedly connected with a first side lug (61), the right side of the upper end of the second connecting piece (6) is fixedly connected with a second side lug (62), the right side of the upper end of the second connecting piece (6) is provided with a third opening (63), and the second side lug (62) is positioned in the third opening (63);

the right side of the front end of the third connecting piece (7) is clamped in the third clamping groove (16), the left side of the front end of the third connecting piece (7) is fixedly connected with a third side lug (71), the right side of the upper end of the third connecting piece (7) is fixedly connected with a fourth side lug (72), the right side of the upper end of the third connecting piece (7) is provided with a fourth opening (73), and the fourth side lug (72) is positioned in the fourth opening (73);

the right side of the front end of the fourth connecting piece (8) is clamped in the fourth clamping groove (17), the left side of the front end of the fourth connecting piece (8) is fixedly connected with a fifth side lug (81), the right side of the upper end of the fourth connecting piece (8) is fixedly connected with a sixth side lug (82), the right side of the upper end of the fourth connecting piece (8) is provided with a fifth opening (83), and the sixth side lug (82) is positioned in the fifth opening (83);

the front end right side joint of No. five connection piece (9) is in No. five draw-in grooves (18) No. five connection piece (9) front end left side fixedly connected with side lug (91) No. seven of five connection piece (9) upper end right side fixedly connected with side lug (92) No. eight of No. five connection piece (9) the upper end right side of No. five connection piece (9) has seted up No. six opening (94), side lug (92) are located No. six opening (94) eight the upper end rear side fixedly connected with of No. five connection piece (9) lug (93) in No. four the upper end rear side of No. five connection piece (9) is opened and is equipped with No. seven opening (95), lug (93) in No. four are located No. seven opening (95).

2. A data expansion line rotary conduction connecting device according to claim 1, characterized in that: the third middle protruding piece (53) penetrates through the third square hole (31) and extends to the upper side of the rear cover plate (3), and the fourth middle protruding piece (93) penetrates through the fourth square hole (32) and extends to the upper side of the rear cover plate (3).

3. A data expansion line rotary conduction connecting device according to claim 1, characterized in that: the first side protruding piece (61), the third side protruding piece (71), the fifth side protruding piece (81), the seventh side protruding piece (91), the first middle protruding piece (51), the second middle protruding piece (52), the second side protruding piece (62), the fourth side protruding piece (72), the sixth side protruding piece (82) and the eighth side protruding piece (92) are located between the rear cover plate (3) and the front cover plate (4).

4. A data expansion line rotary conduction connecting device according to claim 1, characterized in that: no. one opening (54) and No. two openings (55) all are located connection piece (5), No. three openings (63), No. four openings (73), No. five openings (83) are located connection piece (6) No. three respectively and No. four connection pieces (7) and No. four connection pieces (8), No. six openings (94) and No. seven openings (95) all are located connection piece (9) No. five.

5. A data expansion line rotary conduction connecting device according to claim 1, characterized in that: no. one opening (54) and No. two openings (55) run through left end face and rear end face of a connection piece (5) respectively, No. three openings (63), No. four openings (73), No. five openings (83) run through the right end face of No. two connection pieces (6), the right end face of No. three connection pieces (7) and the right end face of No. four connection pieces (8) respectively, No. six openings (94) and No. seven openings (95) run through No. five connection piece (9) right end face and rear end face respectively.