WO2022109785A1

WO2022109785A1 - Protective structure of electric-vehicle fault diagnostic instrument

Info

Publication number: WO2022109785A1
Application number: PCT/CN2020/131171
Authority: WO
Inventors: 朱红军; 钱春虎; 高裕河
Original assignee: 江苏金彭集团有限公司
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2022-06-02
Also published as: CN112429134A

Abstract

Provided is a protective structure of an electric-vehicle fault diagnostic instrument, comprising a protective housing (20), the protective housing (20) comprising a push-button frame (210) disposed on the front surface of the protective housing (20) and a display frame (220) disposed on the front surface of the protective housing (20), and a fixing structure (230) fixedly connected to the inner bottom side of the protective housing (20) and an adjustment member (240) fixedly connected to the middle of the bottom interior of the protective housing (20); the fixing structure (230) comprises a base (232) fixedly connected to the exterior of the protective housing (20) and a fixing rod (231) fixedly connected between the base (232), a support block (233) slidingly connected to the upper end of the fixing rod (231), a mounting slot (234) disposed on the support block (233), a connecting rod (235) slidingly connected to the interior of the mounting slot (234), and an adjustment screw (236) removably connected to the base (232). The protective housing enables the overall protection of the fault diagnostic instrument, such that damage to the internal fault diagnostic instrument is avoided even if the protective housing is dropped, and also has the functions of being removable and easy to install.

Description

A kind of protective structure of electric vehicle fault diagnosis instrument

technical field

The invention relates to the technical field of fault diagnosis instruments, in particular to a protective structure of an electric vehicle fault diagnosis instrument.

Background technique

A fault diagnosis instrument refers to an instrument that can make timely judgments on the faults of some equipment and provide a diagnosis scheme. Among them, the electric vehicle fault diagnosis instrument is a portable intelligent vehicle fault self-checking instrument used to detect electric vehicle faults. Users can use the fault diagnosis instrument to quickly read the faults in the electric control system of the electric vehicle, and display the fault information through the LCD screen. , in order to quickly identify the location and cause of the electric vehicle failure.

The electric vehicle fault diagnosis instrument is actually to diagnose whether the components in the electric control system of the electric vehicle are working normally. When a component in the electric vehicle electronic control system fails, the component and related sensors respond to the fault information, which is stored in the vehicle controller terminal in the form of a fault code, and the maintenance personnel communicate with the vehicle through the electric vehicle fault diagnosis instrument. The controller terminal is connected to read the fault code and display it on the LCD screen.

However, the shell of the existing electric vehicle fault diagnosis instrument is generally made of plastic, which can only realize the support and protection of the internal devices, and has no protective effect on itself and the liquid crystal display screen. Since the LCD screen is a fragile object, when the fault diagnosis instrument is used to detect the electric control system of the electric vehicle, the diagnosis instrument may be bumped or even dropped, which will not only cause damage to the outer casing of the diagnosis instrument, but also cause the LCD display to be damaged. The screen is broken, which directly affects the use of the fault diagnosis instrument.

SUMMARY OF THE INVENTION

The embodiment of the present application provides a protective structure for an electric vehicle fault diagnosis instrument. The protective casing can achieve a protective effect on the fault diagnosis instrument as a whole. Even if the protective casing is dropped, the internal fault diagnosis instrument will not be damaged. It is detachable and easy to install.

The embodiment of the present application provides a protective structure of an electric vehicle fault diagnosis instrument, including a fault diagnosis instrument and a protective casing,

Fault diagnosis instrument, mainly used for electric vehicle circuit fault diagnosis;

The protective shell can be detachably connected to the outside of the fault diagnosis instrument for the overall protection of the fault diagnosis instrument;

The protective casing includes a key frame, a display frame, a fixing structure and an adjustment member;

The key frame is set on the front surface of the protective casing, and the key frame is installed with a plastic plate of the same material as the medical injection plastic hose, which is used for the key operation of the fault diagnosis instrument;

The display frame is opened on the front surface of the protective casing, located on the upper side of the key frame, and a transparent hard plastic plate is installed on the display frame for viewing the LCD screen;

Fixed structure, fixedly connected to the inner bottom side of the protective casing, used to fix the fault diagnosis instrument;

Wherein, the fixing structure includes a fixing rod, a base, a support block, a mounting groove, a connecting rod and an adjusting screw;

The base is fixedly connected to the outside of the protective shell, the base is provided with three groups, and the bases are all provided with threaded holes opened horizontally, and the height of the horizontal position of the threaded holes should correspond to the middle position of the front end surface of the support block;

The fixing rod is fixedly connected between the bases, the fixing rods are provided with three groups, and the three groups of the fixing rods are connected end to end through the three sets of the bases, forming a triangle, and the fixing rods are arc rods;

The support block is slidably connected to the upper end of the fixing rod, the support block is provided with three groups, and the positions of the support blocks in the three groups correspond to the base positions in the three groups respectively;

installation grooves are opened on the support blocks, and each group of the support blocks is provided with two sets of the installation grooves for the installation of the connecting rod;

The connecting rod is slidably connected to the inside of the installation groove, the connecting rod is provided with three groups, and the connecting rods in the three groups are installed on the support blocks to form a triangle with the support blocks in the three groups;

The adjusting screw is detachably connected to the base, and the bottom end is detachably connected with a ring base, which is used to push the support block to slide;

The adjusting piece is fixedly connected to the inner middle of the bottom end of the protective casing, and is used to adjust the height position of the fault diagnosis instrument in the protective casing.

Further three groups of the bases are respectively fixedly connected to the left end surface, the right end surface and the rear end surface of the outer protective shell, and the bases on the three end surfaces are located at the same height.

Further, the adjusting member includes a mounting frame, a pressing column, a first push rod, a support frame, a spring, a second push rod, a support rod, a support plate and a transmission assembly;

The installation frame is fixedly connected to the inner middle of the bottom end of the protective shell, and the upper end of the installation frame is arranged in an arc structure;

The pressing column is slidably connected to the upper end of the installation frame, and can be slid into the installation frame;

The first push rod is fixedly connected to the bottom end of the pressing column and is located inside the installation frame;

The support frame is slidably connected to a bottom end of the push rod;

The spring is placed vertically inside the support frame, and the upper end of the spring is fixedly connected to the bottom end of the push rod 1, which is used for the connection between the push rod 1 and the push rod 2, and provides power for the reset of the push rod 1;

The second push rod is slidably connected to the bottom end of the support frame, and the upper end is fixedly connected to the bottom end of the spring;

The support rod is fixedly connected to the inner walls of the left and right ends of the protective shell, and the end of the support rod far away from the protective shell is slidably connected to the outer walls of the left and right ends of the support frame, which is used for the installation and support of the support frame;

The support plate is fixedly connected to the two bottom ends of the push rod, and is placed laterally inside the protective casing;

The transmission assembly is movably connected to the bottom end of the support plate, and is used for realizing the position drop of the support plate.

Further, the transmission assembly includes a mounting block that is slidably connected to the bottom ends of the left and right sides of the support plate, and a connecting block that is fixedly connected to the inner wall of the bottom end of the mounting frame, and a diagonal strut that is connected between the mounting block and the connecting block. The left and right sides of the connecting block are fixedly connected to the triangular support block on the inner wall of the protective casing and the telescopic rod that is fixedly connected between the triangular support block and the diagonal strut.

Further, there are two sets of diagonal struts, the upper end of the diagonal strut is fixedly connected to the bottom end of the installation block, and the bottom end of the diagonal strut is hingedly connected to the connection block.

Further, the bottom end of the support plate is provided with a chute, and the length of the chute is less than the length of the support plate, that is, a margin of 1-2mm should be left at the left and right ends of the chute for the sliding limit of the installation block. .

Further, the protective housing also includes a cleaning structure, and the cleaning structure and the protective housing are used together;

Wherein, the cleaning structure includes a spray head, a blowing pipe and a pressure ball;

The pressure ball, placed outside the right side of the protective case, is used to provide a gas source;

The air blowing pipe is detachably connected to the upper end of the pressure ball, the air blowing pipe is placed inside the protective casing, and the air blowing pipe is made of hard plastic;

The spray head is detachably connected to the left end of the blowing pipe.

Further, a right opening groove is provided on the upper side of the right end surface of the protective casing, and a sealing cover plate 1 is hingedly connected to the right opening groove, which is used to provide the inlet and outlet of the blowing pipe.

Further, a left opening groove is provided on the upper side of the left end surface of the protective casing, and a second sealing cover plate is detachably connected to the left opening groove for dust removal.

Further, an installation port is left on the upper end of the protective casing, and a cover plate is slidably connected in the installation port, which is used as an installation port for installing the fault diagnosis instrument.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

1. Remove the cover on the installation port, the side of the protective case with the display frame is facing forward, and install the fault diagnosis instrument into the protective casing with the front side facing forward. After the bottom of the fault diagnosis instrument is in contact with the upper end of the pressing column , there will definitely be a problem that the LCD screen is located on the upper side of the display frame. At this time, just press the fault diagnosis instrument down, the pressing column will slide into the installation frame under force, and then the push rod will squeeze the spring downward, and the push rod will be pushed downward. The second rod is pushed down, the support plate moves down, the mounting block slides in the opposite direction, the diagonal strut expands, and the telescopic rod shrinks, thereby moving the LCD screen down to the display frame, and then twisting and adjusting in turn screw, push the support block, so that the inner space of the triangle formed between the support block and the connecting rod is gradually reduced, until the fault diagnosis instrument is fixed in the triangle, stop rotating the adjustment screw, and the installation of the protective shell is completed; The overall protective function of the fault diagnosis instrument. The fault diagnosis instrument is installed in the middle of the protective casing, and there are gaps at the front, rear, left and right bottoms. Even if the protective casing is dropped, it will not cause damage to the internal fault diagnosis instrument. At the same time, it is detachable and easy to install. effect.

2. The protective casing is installed on the fault diagnosis instrument for a long time, and when there is dust on the LCD screen, open the sealing cover 1, remove the sealing cover 2, put the air blowing pipe into the protective casing, and follow the position of the right opening groove While moving the blowing pipe up and down, press the pressure ball to blow out the dust on the LCD screen from the left opening slot. After cleaning, cover the second sealing cover, take out the blowing pipe, and cover the first sealing cover; It is convenient and fast to clean the LCD screen without removing the protective casing.

Description of drawings

1 is a schematic diagram of a protective structure of an electric vehicle fault diagnosis instrument in the implementation of the application;

Fig. 2 is a schematic diagram of the structure of the protective housing in Fig. 1;

Figure 3 is a schematic diagram of the internal structure of the protective housing in Figure 2;

Fig. 4 is the fixed structure schematic diagram in Fig. 3;

Figure 5 is a top view of the protective housing in Figure 2;

FIG. 6 is a schematic structural diagram of the adjusting member in FIG. 3;

FIG. 7 is a schematic structural diagram of the transmission assembly in FIG. 6;

Fig. 8 is a schematic diagram of the cleaning structure in Fig. 1;

Figure 9 is a right side view of the protective housing in Figure 2;

FIG. 10 is a left side view of the protective casing in FIG. 2 .

In the picture: 10 fault diagnosis instrument;

20 protective shell, 210 key frame, 220 display frame, 230 fixed structure, 231 fixed rod, 232 base, 233 support block, 234 installation slot, 235 connecting rod, 236 adjusting screw, 240 adjusting piece, 241 pressing column, 242 pushing Rod one, 243 support frame, 244 spring, 245 push rod two, 246 support rod, 247 support plate, 248 transmission assembly, 481 installation block, 482 diagonal strut, 483 connection block, 484 telescopic rod, 485 triangle support block, 249 Installation frame, 250 installation port, 251 cover, 260 cleaning structure, 261 nozzle, 262 blowing pipe, 263 pressure ball, 270 right opening slot, 271 sealing cover 1, 280 left opening slot, 281 sealing cover 2.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. The preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Please refer to Figures 1-5, a protective structure of an electric vehicle fault diagnosis instrument, including a fault diagnosis instrument 10 and a protective casing 20;

The fault diagnosis instrument 10 is used for electric vehicle fault diagnosis, mainly for electric vehicle circuit fault diagnosis;

The protective casing 20 is detachably sleeved on the outside of the fault diagnosis instrument 10 for protection of the overall structure of the fault diagnosis instrument 10;

The protective casing 20 includes a key frame 210, a display frame 220, a fixing structure 230 and an adjustment member 240;

The key frame 210 is provided on the front surface of the protective casing 20, and is used to realize the key operation of the fault diagnosis instrument 10;

The display frame 220 is provided on the front surface of the protective casing 20, and is located on the upper side of the key frame 210, for viewing the liquid crystal display;

The fixing structure 230 is fixedly connected to the inner bottom side of the protective casing 20, and is used for fixing the fault diagnosis instrument 10, and simultaneously realizing the detachment of the protective casing 20;

Wherein, the fixing structure 230 includes a fixing rod 231, a base 232, a support block 233, a mounting groove 234, a connecting rod 235 and an adjusting screw 236;

The base 232 is fixedly connected to the outside of the protective casing 20, and the base 232 is provided with three groups for the installation and support of the fixing rod 231;

The fixing rods 231 are fixedly connected between the bases 232, and three groups of the fixing rods 231 are also arranged, and the three groups of the fixing rods 231 are connected end to end through the three groups of the bases 232 to form a triangle;

The support block 233 is slidably connected to the upper end of the fixing rod 231, and the support block 233 is also provided with three groups, and the positions of the support blocks 233 in the three groups correspond to the positions of the bases 232 in the three groups respectively;

The installation grooves 234 are provided on the support blocks 233, and each group of the support blocks 233 is provided with two sets of the installation grooves 234 for the installation of the connecting rods 235;

The connecting rods 235 are slidably connected to the inside of the installation grooves 234. There are also three groups of the connecting rods 235. The connecting rods 235 of the three groups are slidably installed on the support block 233 through the installation grooves 234. 235 and the support block 233 form a triangle;

The adjusting screw 236 is detachably connected to the base 232, and is used to push the support block 233 to slide, so that the triangular inner space formed by the connecting rod 235 and the support block 233 is reduced, thereby realizing the fixation of the fault diagnosis instrument 10;

The adjusting member 240 is fixedly connected to the middle of the inner bottom end of the protective casing 20 for adjusting the height position of the fault diagnosis instrument 10 in the protective casing 20 .

The three sets of bases 232 are respectively fixedly connected to the same height and different positions outside the protective casing 20, that is to say, a set of bases 232 are fixedly connected to the left end face, right end face and rear end face of the exterior of the protective casing 20, and then the three sets of bases 232 are fixedly connected to each other. The fixing rods 231 are fixedly connected to form a triangle, so as to increase the firmness and reliability.

The fixing rod 231 is an arc-shaped rod. In a limited space, the selection of the arc-shaped rod maximizes the inner space of the triangle formed between the fixing rod 231 and the base 232 .

The positional relationship between the triangle formed between the base 232 and the fixing rod 231 and the triangle formed between the support block 233 and the connecting rod 235 is parallel.

The base 232 has threaded holes opened horizontally, and the height of the horizontal position of the threaded holes is higher than the upper end surface of the fixing rod 231 , corresponding to the middle position of the front end surface of the support block 233 , for realizing the installation of the adjusting screw 236 .

An installation port 250 is left on the upper end of the protective casing 20 , and a cover plate 251 is installed in the installation port 250 , and the cover plate 251 is slidably connected to the installation port 250 , and is used as an installation port for installing the fault diagnosis instrument 10 .

A transparent hard plastic plate can be installed at the display frame 220 to facilitate viewing of the liquid crystal display; a transparent plastic plate (the material is equivalent to a medical injection plastic tube) can be installed at the key frame 210 to facilitate the operation of the keys .

When the embodiment of the present application is actually running, the cover plate 251 on the installation port 250 is first removed, the side of the protective casing 20 with the display frame is facing forward, and then the fault diagnosis instrument 10 is installed into the protective casing 20 with the front side facing forward. After the liquid crystal display screen of the fault diagnosis instrument 10 is aligned with the display screen frame 220, the adjusting screw 236 on the base 232 is rotated in turn, thereby pushing the support block 233, so that the triangle formed between the support block 233 and the connecting rod 235 is inside the The space is gradually reduced until the fault diagnosis instrument 10 is fixed in the triangle, the rotation of the adjusting screw 236 can be stopped, and the installation of the protective casing 20 is completed.

The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

The protective casing can protect the fault diagnosis instrument as a whole. The fault diagnosis instrument is installed in the middle of the protective casing, and there are gaps at the front, rear, left, right and bottom. Even if the protective casing is dropped, it will not cause damage to the internal fault diagnosis instrument. It is also detachable and easy to install.

Embodiment 2

Referring to FIGS. 6-7 , in the process of installing the protective casing 20, in order to adjust the height position of the fault diagnosis instrument 10 in the protective casing 20, so that the display frame 220 is aligned with the liquid crystal display screen of the fault diagnosis instrument 10, the adjustment member 240 is designed. It is convenient to realize the height adjustment of the fault diagnosis instrument 10 .

The adjusting member 240 includes an installation frame 249, a pressing column 241, a push rod 242, a support frame 243, a spring 244, a push rod 2 245, a support rod 246, a support plate 247 and a transmission assembly 248;

The mounting frame 249 is fixedly connected to the inner middle of the bottom end of the protective casing 10, and is used for the installation of other components of the adjusting member 240;

The pressing column 241 is slidably connected to the upper end of the mounting frame 249, and the pressing column 241 can slide into the interior of the mounting frame 249;

The push rod one 242 is fixedly connected to the bottom end of the pressing column 241, and the push rod one 242 is located inside the installation frame 249;

The support frame 243 is slidably connected to the bottom end of the push rod-242;

The spring 244 is placed vertically inside the support frame 2433, and the upper end of the spring 244 is fixedly connected to the bottom end of the push rod 1 242, which is used for the connection between the push rod 1 242 and the push rod 2 245, and provides the reset of the push rod 1 242 at the same time. power;

The second push rod 245 is slidably connected to the bottom end of the support frame 243, and the upper end of the second push rod 245 is fixedly connected to the bottom end of the spring 244;

The support rods 246 are fixedly connected to the inner walls of the left and right ends of the protective casing 20, and one end of the supporting rods 246 away from the protective casing 20 is slidably connected to the outer walls of the left and right ends of the support frame 243 for the installation and support of the support frame 243;

The support plate 247 is fixedly connected to the bottom end of the second push rod 245, and the support plate 247 is laterally placed inside the protective casing 20;

The transmission assembly 248 is movably connected to the bottom end of the support plate 247 for realizing the position of the support plate 247 to be lowered.

The upper end of the installation frame 249 is arranged in an arc shape, and the pressing column 241 is located in the middle position of the installation frame 249, so that during the installation of the fault diagnosis instrument 10, the bottom end of the fault diagnosis instrument 10 is in contact with the upper end of the installation frame 249. After fitting, the pressing post 241 is pressed into the mounting frame 249 , and the position of the fault diagnosis instrument 10 in the protective casing 20 is adjusted according to the pressing of the pressing post 241 , so that the liquid crystal display can be aligned with the display frame 220 .

The transmission assembly 248 includes a mounting block 481, a diagonal strut 482, a connecting block 483, a telescopic rod 484 and a triangular support block 485;

The mounting block 481 is slidably connected to the bottom ends of the left and right sides of the support plate 247;

The connecting block 483 is fixedly connected to the inner wall of the bottom end of the mounting frame 249;

The diagonal strut 482 is connected between the installation block 481 and the connection block 483 , the diagonal brace 482 is divided into two groups, the upper end of the diagonal brace 482 is fixedly connected to the bottom end of the installation block 481 , and the bottom end of the diagonal brace 482 is hinged connected to the connection block 483;

The triangular support blocks 485 are fixedly connected to the left and right inner walls of the bottom end of the protective housing 20, and the connection blocks 483 are located between the triangular support blocks 485 for the installation and support of the telescopic rod 484;

The telescopic rod 484 is fixedly connected between the triangular support block 485 and the diagonal strut 482 to provide power for the mounting block 481 to reset.

The bottom end of the support plate 247 is provided with a chute, and the length of the chute is less than the length of the support plate 247, that is to say, a margin of 1-2mm should be left at the left and right ends of the chute for the sliding of the mounting block 481. To prevent the mounting block 481 from slipping off the support plate 247 .

The telescopic rod 484 is provided with a spring to realize automatic reset and extension, so as to provide power for the reset of the mounting block 481 .

During the actual operation of the embodiment of the present application, when the fault diagnosis instrument 10 is put into the protective casing 20, after the bottom end of the fault diagnosis instrument 10 is in contact with the upper end of the pressing column 241, the problem that the liquid crystal display screen is located on the upper side of the display frame 220 will definitely occur At this time, it is only necessary to continue to press the fault diagnosis instrument 10 downward, so that the pressing column 241 is forced to slide toward the inside of the installation frame 249, and then the push rod 1 242 presses the spring 244 downward, and pushes the push rod 2 245 downward. , the support plate 247 is forced to move down, the mounting block 481 slides in the opposite direction, the diagonal strut 482 is unfolded, and the telescopic rod 484 is retracted, thereby realizing the downward movement of the fault diagnosis instrument 10 and moving the liquid crystal display screen down to the display screen. within box 220 .

The adjustment part not only realizes the position adjustment of the fault diagnosis instrument in the protective casing, but also plays a certain limiting role to prevent the fault diagnosis instrument from being directly to the end when it is installed, and also has the characteristics of convenient adjustment, time saving and labor saving.

Embodiment 3

Please refer to Fig. 8-10, the protective casing 20 is installed on the fault diagnosis instrument 10 for a long time, and dust will inevitably enter the protective casing 20 and fall on the liquid crystal display screen. In order not to affect the maintenance personnel to view the diagnosis results, the cleaning structure is designed 260, on the basis of not needing to disassemble the protective casing 20, the cleaning of the liquid crystal display screen is realized.

The cleaning structure 260 includes a spray head 261, a blowing pipe 262 and a pressure ball 263;

The pressure ball 263 is placed outside the right side of the protective casing 20 to provide a gas source;

The blowing pipe 262 is detachably connected to the upper end of the pressure ball 263, and the blowing pipe 262 is placed inside the protective casing 20;

The spray head 261 is detachably connected to the left end of the blowing pipe 262 .

A right opening slot 270 is defined on the upper side of the right end surface of the protective casing 20, and a sealing cover plate 1 271 is hingedly connected to the right opening slot 270, and the sealing cover plate 1 271 and the right opening slot 270 are snap-fastened;

A left opening slot 280 is defined on the upper side of the left end surface of the protective casing 270, and a second sealing cover plate 281 is detachably connected to the left opening slot 280, and the second sealing cover plate 281 and the left opening slot 280 are snap-fastened;

When there is dust on the LCD screen, open the sealing cover plate 1 271, remove the sealing cover plate 2 281, install the nozzle 261 on the blowing pipe 262, and put it into the protective casing 20. Since the right opening slot 270 is opened on the protective casing 20 Therefore, it is only necessary to move the blowing pipe 262 up and down along the position of the right opening slot 270 and press the pressure ball 263 to blow out the dust on the LCD screen from the left opening slot 280 .

The air blowing pipe 262 is made of hard plastic to avoid deformation when the air blowing pipe 262 moves.

The cleaning structure 260 is used together with the protective casing 20, and the cleaning structure 260 can be removed from the protective casing 20 when not in use.

During the actual operation of the embodiment of the present application, the protective casing 20 is installed on the fault diagnosis instrument 10 for a long time, and when there is dust on the liquid crystal display screen, open the sealing cover plate 1 271, remove the sealing cover plate 2 281, and install the nozzle on the blowing pipe 262. 261, put it into the protective casing 20, move the blowing pipe 262 up and down along the position of the right opening slot 270, press the pressure ball 263 at the same time, blow out the dust on the LCD screen from the left opening slot 280, and cover it after the cleaning is completed. Seal the second cover plate 281, pull out the blowing pipe 262, and cover the first sealing cover plate 271.

The liquid crystal display screen can be cleaned in this way without disassembling the protective casing, and the liquid crystal display screen can be cleaned conveniently and quickly.

Due to the relatively high plasticity of aluminum, the protective casing 20 can be formed by using aluminum as the main material.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

A protective structure of an electric vehicle fault diagnosis instrument, comprising a fault diagnosis instrument and a protective casing, characterized in that:

Fault diagnosis instrument, mainly used for electric vehicle circuit fault diagnosis;

The protective shell can be detachably connected to the outside of the fault diagnosis instrument for the overall protection of the fault diagnosis instrument;

The protective casing includes a key frame, a display frame, a fixing structure and an adjustment member;

The key frame is set on the front surface of the protective casing, and the key frame is installed with a plastic plate of the same material as the medical injection plastic hose, which is used for the key operation of the fault diagnosis instrument;

The display frame is opened on the front surface of the protective casing, located on the upper side of the key frame, and a transparent hard plastic plate is installed on the display frame for viewing the LCD screen;

Fixed structure, fixedly connected to the inner bottom side of the protective casing, used to fix the fault diagnosis instrument;

Wherein, the fixing structure includes a fixing rod, a base, a support block, a mounting groove, a connecting rod and an adjusting screw;

The base is fixedly connected to the outside of the protective shell, the base is provided with three groups, and the bases are all provided with threaded holes opened horizontally, and the height of the horizontal position of the threaded holes should correspond to the middle position of the front end surface of the support block;

The fixing rods are fixedly connected between the bases, the fixing rods are provided with three groups, and the three groups of the fixing rods are connected end to end through the three groups of the bases, forming a triangle, and the fixing rods are arc rods;

The support block is slidably connected to the upper end of the fixing rod, the support block is provided with three groups, and the positions of the support blocks in the three groups correspond to the base positions in the three groups respectively;

an installation groove is set on the support block, and each group of the support block is provided with two sets of the installation groove for the installation of the connecting rod;

The connecting rod is slidably connected to the inside of the installation groove, the connecting rod is provided with three groups, and the connecting rods in the three groups are installed on the support blocks to form a triangle with the support blocks in the three groups;

The adjusting screw is detachably connected to the base, and the bottom end is detachably connected with a ring base, which is used to push the support block to slide;

The adjusting piece is fixedly connected to the inner middle of the bottom end of the protective casing, and is used to adjust the height position of the fault diagnosis instrument in the protective casing.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein the three groups of the bases are respectively fixedly connected to the left end face, the right end face and the rear end face outside the protective casing, and the three end faces are respectively The base on the top is at the same height.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein the adjusting member comprises a mounting frame, a pressing column, a first push rod, a support frame, a spring, a second push rod, a support rod, a support Plates and drive assemblies;

The installation frame is fixedly connected to the inner middle of the bottom end of the protective shell, and the upper end of the installation frame is arranged in an arc structure;

The pressing column is slidably connected to the upper end of the installation frame, and can be slid into the installation frame;

The first push rod is fixedly connected to the bottom end of the pressing column and is located inside the installation frame;

The support frame is slidably connected to a bottom end of the push rod;

The spring is placed vertically inside the support frame, and the upper end of the spring is fixedly connected to the bottom end of the push rod 1, which is used for the connection between the push rod 1 and the push rod 2, and provides power for the reset of the push rod 1;

The second push rod is slidably connected to the bottom end of the support frame, and the upper end is fixedly connected to the bottom end of the spring;

The support rod is fixedly connected to the inner walls of the left and right ends of the protective shell, and the end of the support rod far away from the protective shell is slidably connected to the outer walls of the left and right ends of the support frame, which is used for the installation and support of the support frame;

The support plate is fixedly connected to the two bottom ends of the push rod, and is placed laterally inside the protective casing;

The transmission assembly is movably connected to the bottom end of the support plate, and is used for realizing the position drop of the support plate.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 3, wherein the transmission assembly comprises a mounting block slidingly connected at the bottom ends of the left and right sides of the support plate and a fixed connection on the inner wall of the bottom end of the mounting frame The connecting block, the diagonal strut connected between the mounting block and the connecting block, the left and right sides of the connecting block are fixedly connected to the triangular support block on the inner wall of the protective shell, and the fixed connection between the triangular support block and the diagonal strut Connected telescopic rod.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 4, wherein: the diagonal struts are in two groups, the upper ends of the diagonal struts are fixedly connected to the bottom ends of the installation blocks, and the bottom ends of the diagonal struts are hinged connected to the connection block.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 3, wherein the bottom end of the support plate is provided with a chute, and the length of the chute is less than the length of the support plate, that is, the left and right sides of the chute are Leave a 1-2mm margin at both ends for the sliding limit of the mounting block.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein the protective casing further comprises a cleaning structure, and the cleaning structure and the protective casing are used together;

Wherein, the cleaning structure includes a nozzle, a blowing pipe and a pressure ball;

The pressure ball, placed outside the right side of the protective casing, is used to provide a gas source;

The air blowing pipe is detachably connected to the upper end of the pressure ball, the air blowing pipe is placed inside the protective casing, and the air blowing pipe is made of hard plastic;

The spray head is detachably connected to the left end of the blowing pipe.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein a right opening groove is formed on the upper side of the right end surface of the protective casing, and a sealing cover plate 1 is hingedly connected to the right opening groove, which is used for Provides inlet and outlet for blowpipe.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein a left opening groove is formed on the upper side of the left end surface of the protective casing, and a second sealing cover plate is detachably connected to the left opening groove, which is used for in the dust.
The protective structure of an electric vehicle fault diagnosis instrument according to claim 1, wherein an installation port is left on the upper end of the protective casing, and a cover plate is slidably connected in the installation port for the installation of the fault diagnosis instrument. mouth.