CN107565260B - Fixing structure of automobile diagnosis interface plug-in - Google Patents

Abstract

The invention discloses a fixing structure of an automobile diagnosis interface plug-in, which comprises a box body, a diagnosis interface plug-in and a locking structure, wherein: the box body comprises an open accommodating cavity; the diagnosis interface plug-in is accommodated in the accommodating cavity in a sliding manner; the locking structure comprises a fixing part arranged in the diagnosis interface plug-in unit and a locking part arranged in the accommodating cavity, and the diagnosis interface plug-in unit is locked in the accommodating cavity when the diagnosis interface plug-in unit slides to a preset position. Compared with the prior art, the diagnosis interface plug-in is fixed in the box body, and the box body and the electric appliance box body are designed in an integrated mode, so that the fixing position of the diagnosis interface is easy to unify, the occupied space is small, the limitation of the whole vehicle structure and the arrangement space is not easy to occur, the technical problems that the fixing positions of the diagnosis interface plug-in corresponding to the traditional structure are different and the finding is difficult are solved, and the diagnosis interface plug-in is fixed, safe and reliable, convenient to use and excellent in protection effect.

Description

Fixing structure of automobile diagnosis interface plug-in

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a fixing structure of an automobile diagnosis interface plug-in.

Background

With the development of automobile technology, the degree of automobile informatization and intelligence is higher and higher, and when an automobile breaks down, a diagnosis interface is required to be externally connected with special diagnosis equipment for the automobile to diagnose the fault of the whole automobile.

The automobile diagnosis interface is a necessary interface of the whole automobile, and the fixing mode of the whole automobile diagnosis interface in the market at present is basically that the automobile body is fixed in a metal plate hole-opening bolt-nut mode or is directly tied on a wire harness.

Referring to fig. 1, an assembly state diagram of a diagnostic interface plug-in the prior art is shown, the diagnostic interface plug-in 1001 is fixed by bolts and nuts, a vehicle body metal plate 1002 is generally selected as a fixed position of the diagnostic interface plug-in 1001, two holes with the diameter of 5mm are formed in the vehicle body metal plate 1002, the vehicle body metal plate is limited by different vehicle body metal plate 1002 structures of different vehicle types, and the fixed position of the diagnostic interface plug-in 1001 is uncertain.

The disadvantages of this assembly are:

1. the diagnostic interface plug-in 1001 has different fixed positions and is difficult to search due to different vehicle body structures and structures of various vehicle types.

2. The diagnostic interface card 1001 lacks effective protection and is generally exposed to the external environment, and thus cannot effectively prevent dust, water and foreign object damage.

3. The diagnosis interface is provided with a power line, the electricity taking part is a fuse box, the fixing mode is generally far away from the fuse box, and the farther the diagnosis interface plug-in is from the fuse box, the greater the risk of diagnosing the short circuit of the power line.

4. The fixing mode of the bolts and the nuts is adopted, the production assembly efficiency is low, the cost is high, and the assembling mode needs to be assembled in an automobile assembly workshop.

Referring to fig. 2, another assembled state of the prior art diagnostic interface insert is schematically illustrated, the diagnostic interface insert 1001 is strapped to the wiring harness 1004 by a tie 1003 (or electrical tape), optionally in place.

The disadvantages of this assembly are:

1. the fixing reliability is low.

2. Since the wiring harness 1004 is generally arranged in an internal space such as an instrument desk, the diagnostic interface card 1001 is difficult to find.

3. The diagnostic interface has a power cord, and the diagnostic interface insert 1001 is secured to the harness 1004 in a manner that is less secure.

Disclosure of Invention

The invention aims to provide a fixing structure of an automobile diagnosis interface plug-in unit, which aims to overcome the defects in the prior art, is easy to unify the fixing position of the diagnosis interface plug-in unit, is not easily limited by the structure and the arrangement space of the whole automobile, and has safe and reliable fixing and excellent protection effect.

The invention provides a fixing structure of an automobile diagnosis interface plug-in, which comprises a box body, a diagnosis interface plug-in and a locking structure, wherein:

the box body comprises an open accommodating cavity;

the diagnosis interface plug-in is accommodated in the accommodating cavity in a sliding manner;

the locking structure comprises a fixing part arranged in the diagnosis interface plug-in and a locking part arranged in the accommodating cavity, the fixing part is matched with the locking part, and the diagnosis interface plug-in is locked in the accommodating cavity when the diagnosis interface plug-in slides to a preset position; the locking part comprises a locking block fixed at the top of the accommodating cavity, a heart-shaped groove is concavely arranged on the locking block, a first molded surface extending obliquely leftwards and upwards is arranged on the inner wall of the upper side of the heart-shaped groove, a second molded surface extending vertically is arranged on the inner wall of the lower side of the heart-shaped groove, a heart-shaped convex block with the upper surface recessed downwards is arranged in the heart-shaped groove, the recessed position is positioned right below the first molded surface, the lower surface of the heart-shaped convex block comprises a third molded surface extending obliquely rightwards and upwards from the bottommost end of the heart-shaped convex block, and the upper surface of the heart-shaped convex block comprises a fourth molded surface extending obliquely rightwards and upwards from;

the heart-shaped groove is internally provided with an initial position, a first limit position, a locking position and a second limit position, the initial position is positioned right below the third molded surface, the locking position is positioned at the concave position of the heart-shaped convex block, and the first limit position is positioned at the upper right of the locking position and is positioned right above the fourth molded surface; the second limiting position is positioned at the left upper part of the heart-shaped convex block and is positioned right above the second profile;

the heart-shaped lug and the inner wall of the heart-shaped groove form a self-locking loop, and the self-locking loop comprises a first channel from an initial position to a first limit position along a third molded surface upwards, a second channel from the first limit position to a locking position along a fourth molded surface downwards, a third channel from the locking position to a second limit position along the first molded surface upwards, and a fourth channel from the second limit position to the initial position along the second molded surface downwards;

the fixing part comprises a guide rod fixed at the top of the diagnosis interface plug-in, the free end of the guide rod extends upwards to form a hook head, and the hook head extends into the heart-shaped groove and forms locking fit with the heart-shaped lug.

The fixing structure of the automobile diagnosis interface plug-in is characterized in that a spring is preferably arranged in the accommodating cavity, a blind hole is arranged on one side, close to the accommodating cavity, of the diagnosis interface plug-in, an arc-shaped supporting table is fixed at the bottom of the accommodating cavity, one end of the spring extends into the blind hole, and the other end of the spring is supported on an arc-shaped surface of the arc-shaped supporting table.

The fixing structure of the automobile diagnosis interface plug-in unit is preferably arranged such that the opposite positions of the side walls of the two sides of the accommodating cavity are provided with first bosses in a protruding manner, the two side walls of the first bosses extend upwards to form first protruding blocks, guide grooves are formed between the opposite first protruding blocks, the two sides of the diagnosis interface plug-in unit are provided with elastic pieces in a protruding manner, and the elastic pieces are embedded in the guide grooves to form guiding fit.

The fixing structure of the automobile diagnosis interface plug-in unit is preferably configured such that a fixed end of the elastic sheet is fixed to a side portion of the diagnosis interface plug-in unit, a free end of the elastic sheet extends toward the accommodating cavity, a control handle is convexly arranged on the free end of the elastic sheet, the free end of the control handle extends away from the accommodating cavity, two second protruding blocks which are oppositely arranged are convexly arranged on the guide groove, and a passageway through which the control handle penetrates is formed between the two second protruding blocks; a first limiting surface is formed on one side, close to the elastic sheet, of the second bump, a second limiting surface is arranged on one side, close to the second bump, of the elastic sheet, and the first limiting surface and the second limiting surface form limiting fit; a first guide inclined plane is formed on one side, away from the elastic piece, of the second convex block, a second guide inclined plane is formed on one side, away from the second convex block, of the elastic piece, and the first guide inclined plane and the second guide inclined plane form guide fit.

Preferably, a second boss protrudes from the top of the diagnostic interface plug-in, an assembly hole is recessed from the top of the second boss, and one end of the guide rod, which is far away from the hook, is embedded into the assembly hole.

In the fixing structure of the automobile diagnosis interface plug-in, it is preferable that a support base is protruded from a top of the diagnosis interface plug-in, and a shaft of the guide bar is supported on the support base.

The fixing structure of the automobile diagnosis interface plug-in unit is characterized in that the opening end of the box body is hinged with a box cover, one side, far away from the hinged end, of the box cover forms a turned edge, a clamping groove penetrates through the turned edge, a clamping block is convexly arranged on the side face, far away from the hinged end, of the box body, and when the box cover is turned to the limit position, the clamping groove and the clamping block form clamping matching.

Preferably, the inner side of the box cover is provided with a first protruding strip and a second protruding strip in a protruding manner, and the first protruding strip and the second protruding strip are arranged in parallel.

Compared with the prior art, the diagnosis interface plug-in is fixed in the box body, and the box body and the electric appliance box body are designed in an integrated mode, so that the fixing position of the diagnosis interface is easy to unify, the occupied space is small, the limitation of the structure and the arrangement space of the whole vehicle is not easy to occur, the technical problems that the fixing positions of the diagnosis interface plug-in corresponding to the traditional structure are different and the finding is difficult are solved, and the diagnosis interface plug-in is fixed safely and reliably and is convenient to use and convenient to diagnose when popped up; after being pushed in, the fixing and protecting effect is excellent.

Drawings

FIG. 1 is a schematic representation of a prior art assembled state of an automotive diagnostic interface insert;

FIG. 2 is a schematic view of another prior art assembled state of an automotive diagnostic interface insert;

FIG. 3 is an isometric view of the unitary structure of the present invention in an assembled condition;

FIG. 4 is an isometric view of the unitary structure of the present invention in an unassembled state;

FIG. 5 is a schematic illustration of an explosive structure according to the present invention;

FIG. 6 is an isometric view of the diagnostic interface insert of the present invention;

FIG. 7 is an isometric view of the cassette of the present invention;

FIG. 8 is a front view of the cassette of the present invention;

FIG. 9 is an isometric view of the cassette body of the present invention with the top wall hidden;

FIG. 10 is a longitudinal cross-sectional view of the overall structure of the present invention;

FIG. 11 is a transverse cross-sectional view of the overall structure of the present invention;

fig. 12 is a schematic structural view of the spring plate and the second bump in the fitting assembly according to the present invention.

Description of reference numerals:

101-box body, 102-containing cavity, 103-spring, 104-arc-shaped saddle, 105-first boss, 106-first lug, 107-guide groove, 108-second lug, 109-first limiting surface, 110-first guide inclined surface, 111-box cover, 112-flanging, 113-clamping groove, 114-clamping block, 115-first convex strip and 116-second convex strip;

201-diagnosis interface plug-in, 202-blind hole, 203-shrapnel, 204-control handle, 205-second limit surface, 206-second guide inclined surface, 207-second boss, 208-assembly hole, and 209-support platform;

301-fixed part, 302-guide rod, 303-hook head;

401-locking part, 402-locking piece, 403-heart-shaped groove, 404-heart-shaped projection, 405-first profile, 406-second profile, 407-third profile, 408-fourth profile, 409-initial position, 410-first extreme position, 411-locking position, 412-second extreme position, 413-first channel, 414-second channel, 415-third channel, 416-fourth channel;

1001-diagnostic interface insert, 1002-body sheet metal, 1003-cable tie, 1004-wire harness.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As shown in fig. 3 to 12, an embodiment of the present invention provides a fixing structure of an automotive diagnostic interface card, including a box 101, a diagnostic interface card 201, and a locking structure, wherein: the box body 101 comprises an open accommodating cavity 102, and the box body 101 is preferably in a structural form of injection molding and integral molding with the electrical appliance box body through the upper plane of the box body 101, so that the box body 101 and the electrical appliance box are integrated; the diagnostic interface insert 201 is slidably accommodated in the accommodating cavity 102; the locking structure comprises a fixing part 301 arranged in the diagnosis interface plug-in 201 and a locking part 401 arranged in the accommodating cavity 102, wherein the fixing part 301 is matched with the locking part 401, and when the diagnosis interface plug-in 201 slides to a preset position, the diagnosis interface plug-in 201 is locked in the accommodating cavity 102.

In a daily state, the diagnosis interface plug-in 201 is accommodated in the accommodating cavity 102, so that the diagnosis interface plug-in 201 is prevented from being exposed in an external environment, dust prevention, water prevention, foreign matter damage prevention and the like are effectively achieved, the protection effect is good, when diagnosis is needed, the locking structure is released, the diagnosis interface plug-in 201 can be popped out of the accommodating cavity 102, and diagnosis is convenient. The box body 101 and the electrical appliance box body are integrally designed, the fixing position of the diagnosis interface is easy to unify, the occupied space is small, and the limitation of the whole vehicle structure and the arrangement space is not easy to cause, so that the technical problems that the fixing position of the diagnosis interface plug-in 201 corresponding to the traditional structure is different and the searching is difficult are solved.

The locking part 401 includes a locking block 402 fixed on the top of the receiving cavity 102, the locking block 402 is concavely provided with a heart-shaped groove 403, as shown in fig. 11, an upper inner wall of the heart-shaped groove 403 has a first profile 405 extending obliquely to the left and upward, a lower inner wall of the heart-shaped groove 403 has a second profile 406 extending vertically, the heart-shaped groove 403 has a heart-shaped protrusion 404 with a downward concave upper surface, the concave position is located right below the first profile 405, a lower surface of the heart-shaped protrusion 404 includes a third profile 407 extending obliquely to the right and upward from the bottom end of the heart-shaped protrusion 404, and an upper surface of the heart-shaped protrusion 404 includes a fourth profile 408 extending obliquely to the right and upward from the concave position.

The heart-shaped groove 403 has an initial position 409, a first limit position 410, a locking position 411 and a second limit position 412, the initial position 409 is located right below the third profile 407, the locking position 411 is located in the depression of the heart-shaped projection 404, and the first limit position 410 is located right above the locking position 411 and right above the fourth profile 408; the second limit position 412 is located above and to the left of the heart-shaped protrusion 404 and directly above the second profile 406.

The heart-shaped protrusion 404 and the inner wall of the heart-shaped groove 403 form a self-locking loop comprising a first passage 413 from an initial position 409 up along the third profile 407 to the first extreme position 410, a second passage 414 from the first extreme position 410 down along the fourth profile 408 to the locking position 411, a third passage 415 from the locking position 411 up along the first profile 405 to the second extreme position 412 and a fourth passage 416 from the second extreme position 412 down along the second profile 406 to the initial position 409.

The fixing portion 301 comprises a guide rod 302 fixed on the top of the diagnostic interface plug-in 201, a free end of the guide rod 302 extends upwards to form a hook 303, and the hook 303 extends into the heart-shaped groove 403 and forms a locking fit with the heart-shaped protrusion 404.

A spring 103 is arranged in the accommodating cavity 102, a blind hole 202 is arranged on one side of the diagnostic interface plug-in 201 close to the accommodating cavity 102, an arc-shaped saddle 104 is fixed at the bottom of the accommodating cavity 102, one end of the spring 103 extends into the blind hole 202, and the other end of the spring 103 is supported on the arc-shaped surface of the arc-shaped saddle 104.

The assembly and separation process of the diagnosis interface plug-in 201 and the box body 101 of the invention is as follows:

in the initial state, the spring 103 is not compressed, the diagnostic interface insert 201 is aligned with the housing cavity 102, a force is applied to press the diagnostic interface insert 201 into the housing cavity 102, the guide rod 302 moves inwards with the heart-shaped groove 403 as a reference, and the guide rod 302 moves inwards due to the initial position 409 below the third profile 407, and after contacting the third profile 407, the guide rod moves along the first channel 413 to the first limit position 410 under the guiding action of the third profile 407 and the guiding action of the upper right surface of the heart-shaped groove 403.

When the force applied to the diagnostic interface insert 201 is removed, the diagnostic interface insert 201 springs outward under the resilience of the spring 103 with the heart-shaped groove 403 as a reference, the guide rod 302 moves outward at the same time, and since the first limit position 410 is located right above the fourth profile 408, the guide rod 302 contacts the fourth profile 408 during the outward movement and moves to the locking position 411 along the second channel 414 under the guiding action of the fourth profile 408 after contacting the fourth profile 408.

At this time, the diagnostic interface plug 201 and the box body 101 are in a locked state, and the protection effect is excellent.

When the diagnostic interface insert 201 is pressed down again, the guide rod 302 moves inward with the heart-shaped groove 403 as a reference, and since the locking position 411 is located right below the first profile 405, the guide rod 302 moves to the second limit position 412 along the third channel 415 under the guiding action of the first profile 405 after contacting the first profile 405 during the inward movement process.

When the force applied to the diagnostic interface insert 201 is removed again, the diagnostic interface insert 201 springs outwards under the resilience of the spring 103, the guide rod 302 moves outwards again with the heart-shaped groove 403 as a reference, and the guide rod 302 moves outwards, and due to the second limit position 412 being directly above the second profile 406, the guide rod 302 moves to the initial position 409 along the fourth channel 416 under the guiding action of the second profile 406 during the outward movement. At this time, the diagnostic interface plug-in 201 is in a pop-up state, which is beneficial to fault diagnosis.

Thus, a cycle of self-locking and unlocking is completed. The diagnosis interface plug-in 201 can conveniently realize fast switching between popping and pushing, and diagnosis is convenient when popping; after being pushed in, the fixing and protecting effect is excellent; the push-in type structural design is adopted, tightening type fixing of bolts and nuts is replaced, and assembling efficiency is high.

In order to guide the stable movement of the diagnostic interface plug-in 201, the first bosses 105 are convexly arranged at the opposite positions of the side walls of the two sides of the accommodating cavity 102, the two side walls of the first bosses 105 extend upwards to form first protruding blocks 106, a guide groove 107 is formed between the opposite first protruding blocks 106, elastic pieces 203 are convexly arranged at the two sides of the diagnostic interface plug-in 201, and the elastic pieces 203 are embedded into the guide groove 107 to form guiding fit. In the reciprocating sliding process of the diagnosis interface plug-in 201, the elastic sheet 203 is limited by the first bump 106, so that the vertical movement of the diagnosis interface plug-in is limited, the sliding process is stable, and diagnosis is facilitated.

The fixed end of the elastic sheet 203 is fixed on the side of the diagnosis interface plug-in 201, the free end of the elastic sheet 203 extends towards the direction of the accommodating cavity 102, so that the elastic sheet 203 has certain elasticity and can be perpendicular to the direction of the diagnosis interface plug-in 201 to realize resilience, the free end of the elastic sheet 203 is convexly provided with a control handle 204, the free end of the control handle 204 deviates from the direction of the accommodating cavity 102 to extend, the control handle 204 is pushed towards the direction of the accommodating cavity 102 by hand, and one side of the free end of the elastic sheet 203 can be pressed towards the outer wall of the diagnosis interface plug-in 201.

Two second protruding blocks 108 which are oppositely arranged are convexly arranged on the guide groove 107, and a passage for the control handle 204 to penetrate is formed between the two second protruding blocks 108; a first limiting surface 109 is formed on one side, close to the elastic sheet 203, of the second bump 108, a second limiting surface 205 is formed on one side, close to the second bump 108, of the elastic sheet 203, and the first limiting surface 109 and the second limiting surface 205 form limiting fit; in the inward movement process of the diagnosis interface plug-in 201 in the accommodating cavity 102, the first limiting surface 109 and the second limiting surface 205 are abutted to form limiting fit, so that the diagnosis interface plug-in 201 is prevented from being pressed further, the diagnosis interface plug-in 201 is effectively prevented from moving inward, the stable state of the diagnosis interface is ensured, and diagnosis is facilitated. When the diagnostic interface plug-in 201 needs to be retracted into the box body 101 to achieve locking, the control handle 204 needs to be pushed inwards to press one side of the free end of the elastic sheet 203 to the outer wall of the diagnostic interface plug-in 201, so that the first limiting surface 109 and the second limiting surface 205 are dislocated without interference.

A first guiding inclined surface 110 is formed on one side of the second projection 108, which is far away from the spring plate 203, a second guiding inclined surface 206 is formed on one side of the spring plate 203, which is far away from the second projection 108, and the first guiding inclined surface 110 and the second guiding inclined surface 206 form guiding fit. When the diagnostic interface plug-in 201 is pushed by the spring 103 to eject out of the housing, the second guiding inclined surface 206 of the elastic sheet 203 contacts with the first guiding inclined surface 110, so that the motion buffering effect can be effectively achieved.

The top of the diagnostic interface plug-in 201 is convexly provided with a second boss 207, the top of the second boss 207 is concavely provided with an assembly hole 208, and one end of the guide rod 302, which is far away from the hook 303, is embedded into the assembly hole 208. The fixed end of the guide rod 302 is embedded into the assembly hole 208, so that not only is the fixing function achieved, but also the guide rod 302 can rotate by taking the assembly hole 208 as the center, and therefore when the hook head 303 moves in the heart-shaped groove 403, the moving is smoother, and jamming is prevented.

In order to avoid the guide rod 302 from collapsing due to overlength, a support table 209 is protruded from the top of the diagnostic interface card 201, and the shaft of the guide rod 302 is supported on the support table 209.

In order to further improve the protective effect of diagnosis interface plug-in 201 avoids it to expose in the external environment, the open end of box body 101 articulates there is lid 111, and lid 111 adopts the integrated into one piece's that moulds plastics structural style, lid 111 is kept away from one side of hinged end forms turn-ups 112, it has draw-in groove 113 to run through on the turn-ups 112, box body 101 deviates from the protruding fixture block 114 that is equipped with in side of hinged end, when lid 111 overturns to extreme position, draw-in groove 113 and fixture block 114 form the joint cooperation. When diagnosis is not needed, the box cover 111 is turned over to cover the accommodating cavity 102, so that dust prevention, water prevention, foreign matter damage prevention and the like are effectively achieved, and the protection effect is good.

The inner side of the box cover 111 is provided with a first protruding strip 115 and a second protruding strip 116 in a protruding manner, and the first protruding strip 115 and the second protruding strip 116 are arranged in parallel. After the box cover 111 is covered, the first protruding strip 115 and the second protruding strip 116 are both clamped between the diagnostic interface plug-in 201 and the accommodating cavity 102, so that the auxiliary clamping effect is realized.

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims (6)

1. The utility model provides a fixed knot of automotive diagnosis interface plug-in components constructs, includes box body (101), diagnosis interface plug-in components (201) and locking structure, its characterized in that:

the box body (101) comprises an open accommodating cavity (102);

the diagnosis interface plug-in (201) is slidably accommodated in the accommodating cavity (102);

the locking structure comprises a fixing part (301) arranged in the diagnosis interface plug-in (201) and a locking part (401) arranged in the accommodating cavity (102), wherein the fixing part (301) is matched with the locking part (401), and when the diagnosis interface plug-in (201) slides to a preset position, the diagnosis interface plug-in (201) is locked in the accommodating cavity (102); the locking part (401) comprises a locking block (402) fixed at the top of the accommodating cavity (102), a heart-shaped groove (403) is concavely arranged on the locking block (402), a first profile (405) extending obliquely and upwards leftwards is arranged on the inner wall of the upper side of the heart-shaped groove (403), a second profile (406) extending vertically is arranged on the inner wall of the lower side of the heart-shaped groove (403), a heart-shaped convex block (404) with an upper surface being downwards concave is arranged in the heart-shaped groove (403), the concave part is positioned right below the first profile (405), a third profile (407) extending obliquely and upwards rightwards from the bottommost end of the heart-shaped convex block (404) is arranged on the lower surface of the heart-shaped convex block (404), and a fourth profile (408) extending obliquely and upwards rightwards from the concave part is arranged on the upper surface of the heart-shaped;

the heart-shaped groove (403) is internally provided with an initial position (409), a first limit position (410), a locking position (411) and a second limit position (412), wherein the initial position (409) is positioned right below the third profile (407), the locking position (411) is positioned at the depression of the heart-shaped projection (404), and the first limit position (410) is positioned right above the locking position (411) and right above the fourth profile (408); the second extreme position (412) is located above and to the left of the heart-shaped protrusion (404) and directly above the second profile (406);

the heart-shaped lug (404) and the inner wall of the heart-shaped groove (403) form a self-locking loop, the self-locking loop comprises a first channel (413) from an initial position (409) to a first limit position (410) along a third profile (407), a second channel (414) from the first limit position (410) to a locking position (411) along a fourth profile (408) downwards, a third channel (415) from the locking position (411) to a second limit position (412) along the first profile (405) upwards, and a fourth channel (416) from the second limit position (412) to the initial position (409) along the second profile (406) downwards;

the fixing part (301) comprises a guide rod (302) fixed at the top of the diagnostic interface plug-in (201), the free end of the guide rod (302) extends upwards to form a hook head (303), and the hook head (303) extends into the heart-shaped groove (403) and forms locking fit with the heart-shaped convex block (404);

the diagnosis interface plug-in board comprises a diagnosis interface plug-in board (201), wherein a first boss (105) is convexly arranged at the opposite position of the side walls of two sides of an accommodating cavity (102), the two side walls of the first boss (105) extend upwards to form a first convex block (106), a guide groove (107) is formed between the opposite first convex blocks (106), elastic sheets (203) are convexly arranged at two sides of the diagnosis interface plug-in board (201), and the elastic sheets (203) are embedded into the guide groove (107) to form guide fit;

the fixed end of the elastic sheet (203) is fixed on the side of the diagnostic interface plug-in (201), the free end of the elastic sheet (203) extends towards the direction of the accommodating cavity (102), a control handle (204) is convexly arranged on the free end of the elastic sheet (203), the free end of the control handle (204) extends away from the direction of the accommodating cavity (102), two second convex blocks (108) which are oppositely arranged are convexly arranged on the guide groove (107), and a passageway for the control handle (204) to penetrate through is formed between the two second convex blocks (108); a first limiting surface (109) is formed on one side, close to the elastic sheet (203), of the second bump (108), a second limiting surface (205) is arranged on one side, close to the second bump (108), of the elastic sheet (203), and the first limiting surface (109) and the second limiting surface (205) form limiting fit; one side, deviating from the elastic sheet (203), of the second bump (108) is formed with a first guide inclined surface (110), one side, deviating from the second bump (108), of the elastic sheet (203) is formed with a second guide inclined surface (206), and the first guide inclined surface (110) and the second guide inclined surface (206) form guide matching.

2. The fixing structure of the automobile diagnostic interface package as set forth in claim 1, wherein: the diagnosis interface plug-in board comprises a containing cavity (102), a spring (103) is arranged in the containing cavity (102), a blind hole (202) is formed in one side, close to the containing cavity (102), of the diagnosis interface plug-in board (201), an arc-shaped supporting table (104) is fixed to the bottom of the containing cavity (102), one end of the spring (103) extends into the blind hole (202), and the other end of the spring (103) is supported on the arc-shaped surface of the arc-shaped supporting table (104).

3. The fixing structure of the automobile diagnostic interface package as set forth in claim 1, wherein: the top of the diagnosis interface plug-in (201) is convexly provided with a second boss (207), the top of the second boss (207) is concavely provided with an assembly hole (208), and one end, far away from the hook head (303), of the guide rod (302) is embedded into the assembly hole (208).

4. The fixing structure of the automobile diagnostic interface package as set forth in claim 1, wherein: a support table (209) is convexly arranged on the top of the diagnosis interface plug-in (201), and the rod body of the guide rod (302) is supported on the support table (209).

5. The fixing structure of the automobile diagnostic interface package as set forth in claim 1, wherein: the open end of box body (101) articulates there is lid (111), lid (111) are kept away from one side of hinged end forms turn-ups (112), it has draw-in groove (113) to run through on turn-ups (112), box body (101) deviate from the protruding fixture block (114) that is equipped with in side of hinged end, when lid (111) overturn extreme position, draw-in groove (113) and fixture block (114) form the joint cooperation.

6. The fixing structure of the automobile diagnostic interface package of claim 5, wherein: the inner side of the box cover (111) is convexly provided with a first convex strip (115) and a second convex strip (116), and the first convex strip (115) and the second convex strip (116) are arranged in parallel.