阅读说明：本技术 一种具有防丢失功能的互联网解码仪及其使用方法 (Internet decoder with loss prevention function and use method thereof ) 是由 陶明花 于 2021-07-04 设计创作，主要内容包括：本发明涉及解码仪技术领域,尤其为一种具有防丢失功能的互联网解码仪及其使用方法,包括底座和解码仪主体,所述底座的一端固定连接有支撑座,所述支撑座的一端固定连接有拿取报警装置,所述支撑座的一端固定连接有保护装置,所述保护装置的一端固定连接有报警灯,所述报警灯的外侧设置有保护罩,且保护罩与保护装置固定连接,所述保护罩的内侧开设有出声孔,所述底座的一端固定连接有固定装置,本发明中,通过设置的拿取报警装置、保护装置、固定装置、指纹识别模块、报警灯和保护罩,通过拿取报警装置、保护装置、固定装置之间的相互配合,形成多重防盗线,进一步使解码仪主体不会发生被盗的现象,从而防止解码仪主体的丢失。(The invention relates to the technical field of a decoder, in particular to an internet decoder with a loss prevention function and a using method thereof, the internet decoder comprises a base and a decoder main body, one end of the base is fixedly connected with a supporting seat, one end of the supporting seat is fixedly connected with a taking alarm device, one end of the supporting seat is fixedly connected with a protection device, one end of the protection device is fixedly connected with an alarm lamp, the outer side of the alarm lamp is provided with a protection cover, the protection cover is fixedly connected with the protection device, the inner side of the protection cover is provided with a sound outlet, one end of the base is fixedly connected with a fixing device, in the invention, multiple anti-theft lines are formed by the mutual matching of the taking alarm device, the protection device, the fixing device, a fingerprint identification module, the alarm lamp and the protection cover, the phenomenon that the decoding instrument main body is stolen can not occur, and therefore the decoding instrument main body is prevented from being lost.)

1. The utility model provides an internet decoder with prevent losing function, includes base (4) and decoder main part (6), its characterized in that: the one end fixedly connected with supporting seat (10) of base (4), the one end fixedly connected with controller (5) of base (4), alarm device (1) is taken to the one end fixedly connected with of supporting seat (10), the one end fixedly connected with protection device (2) of supporting seat (10), the one end fixedly connected with alarm lamp (8) of protection device (2), the outside of alarm lamp (8) is provided with safety cover (10), and safety cover (10) and protection device (2) fixed connection, phonate hole (11) have been seted up to the inboard of safety cover (10), the one end fixedly connected with fixing device (3) of base (4), decode appearance main part (6) have been placed to the inboard of fixing device (3), the one end fixedly connected with fingerprint identification module (7) of fixing device (3).

2. The internet decoder with loss prevention function as claimed in claim 1, wherein: the taking alarm device (1) comprises a fixed cylinder (101), a movable plate (102), a connecting shaft (103), a first spring (104), a fixed plate (105), a first limit switch (106) and a stop block (107), the fixed cylinder (101) is fixedly connected to the inner side of one end of the base (4), the fixed plate (105) is fixedly connected to the inner side of the fixed cylinder (101), the connecting shaft (103) is slidably connected to the inner side of the fixed plate (105), the movable plate (102) is fixedly connected to the bottom end of the connecting shaft (103), the movable plate (102) is slidably connected with the fixed cylinder (101), the stop block (107) is fixedly connected to the other end of the connecting shaft (103), and the first limit switch (106) limiting the movement of the movable plate (102) is performed by the fixedly connected to one end of the fixed plate (105) close to the movable plate (102).

3. The internet decoder with loss prevention function as claimed in claim 2, wherein: the outer side of the connecting shaft (103) is provided with a first spring (104), and two ends of the first spring (104) are respectively and fixedly connected with the fixed plate (105) and the moving plate (102).

4. The internet decoder with loss prevention function as claimed in claim 1, wherein: the protection device (2) comprises a motor (201), side plates (202), a screw rod (203), a sliding block (204), a connecting column (205), a first protection shell (206), a second protection shell (207) and a protection pad (208), wherein one end of the support seat (10) is fixedly connected with the side plates (202), the number of the side plates (202) is two, the side plates are distributed leftwards and rightwards, one end of the side plate (202) positioned on the right side is fixedly connected with the motor (201), the tail end of a main shaft of the motor (201) is fixedly connected with the screw rod (203), the screw rod (203) is rotatably connected with the other side plate (202), the sliding block (204) is spirally connected to the outer side of the screw rod (203), the connecting column (205) is fixedly connected to the top end of the sliding block (204), the first protection shell (206) is fixedly connected to the top end of the connecting column (205), the second protection shell (207) is fixedly connected to the other end of the support seat (10), and the first protective shell (206) and the second protective shell (207) correspond.

5. The internet decoder with loss prevention function of claim 4, wherein: the inner side of the first protection shell (206) is fixedly connected with a protection pad (108) for preventing the decoding instrument main body (6) from being damaged, and the protection pad (208) is made of a rubber pad.

6. The internet decoder with loss prevention function as claimed in claim 1, wherein: fixing device (3) include first splint (301), adjusting screw (302), clamping ring (303), second limit switch (304), second spring (305), the equal threaded connection in both ends inboard of base (4) has adjusting screw (302), the outside threaded connection of adjusting screw (302) has first splint (301), the inboard fixedly connected with second limit switch (302) and second spring (305) of base (4), clamping ring (303) that the one end fixedly connected with of second spring (305) can press second limit switch (304).

7. The internet decoder with loss prevention function as claimed in claim 1, wherein: fixing device (3) include sleeve (306), third limit switch (307), second splint (308) and adjusting screw (309), the equal fixedly connected with sleeve (306) in both ends of base (4), the one end fixedly connected with third limit switch (307) of sleeve (306), the one end screwed connection of sleeve (306) has adjusting screw (309), the other end rotation of adjusting screw (309) is connected with second splint (308).

8. The use method of the internet decoder with loss prevention function according to claim 1, wherein: the method comprises the following steps:

the method comprises the following steps: firstly, fixing a base (4) and an external fixing piece together through a fixing device (3);

step two: the decoding instrument main body (6) is limited and fixed through the protection device (2), and meanwhile, the protection device (2) can be controlled through the fingerprint identification module (7);

step three: when the decoding instrument main body (6) is taken out from the inner side of the protection device (2), the alarm device (1) is taken out to alarm outside through the alarm lamp (8).

Technical Field

The invention relates to the technical field of decoding instruments, in particular to an internet decoding instrument with a loss prevention function and a using method thereof.

Background

The decoder is a multi-input multi-output combinational logic circuit in electronic technology, which is responsible for translating binary codes into specific objects (such as logic levels and the like), and has a function opposite to that of the encoder, and is generally divided into two categories, namely a general decoder and a digital display decoder, wherein in the digital circuit, the decoder (such as an n-line-2 n-line BCD decoder) can play the role of a multi-input multi-output logic gate and can convert coded input into coded output, wherein the codes of the input and the output are different, an input enabling signal must be connected to the decoder to enable the decoder to normally work, and otherwise, the output is an invalid code word.

The decoding instrument that appears at present simple structure, the function is single, is stolen in the use easily to lead to the decoding instrument to lose, general decoding instrument does not possess prevents losing the function, is unfavorable for staff's use, consequently, provides an internet decoding instrument with prevent losing the function and application method to above-mentioned problem.

Disclosure of Invention

The invention aims to provide an internet decoder with a loss prevention function and a using method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an internet decoding appearance and application method with prevent losing function, includes base and decoding appearance main part, the one end fixedly connected with supporting seat of base, the one end fixedly connected with controller of base, the one end fixedly connected with alarm device of taking of supporting seat, the one end fixedly connected with protection device of supporting seat, protection device's one end fixedly connected with alarm lamp, the outside of alarm lamp is provided with the safety cover, and safety cover and protection device fixed connection, the phonate hole has been seted up to the inboard of safety cover, the one end fixedly connected with fixing device of base, the decoding appearance main part has been placed to fixing device's inboard, fixing device's one end fixedly connected with fingerprint identification module.

Preferably, the alarm device of taking includes solid fixed cylinder, movable plate, connecting axle, first spring, fixed plate, first limit switch and dog, the solid fixed cylinder of the inboard fixedly connected with of one end of base, the inboard fixedly connected with fixed plate of solid fixed cylinder, the inboard sliding connection of fixed plate has the connecting axle, the bottom fixedly connected with movable plate of connecting axle, and movable plate and solid fixed cylinder sliding connection, the other end fixedly connected with dog of connecting axle, the one end fixedly connected with that the fixed plate is close to the movable plate carries out spacing first limit switch to the removal of movable plate.

Preferably, the outer side of the connecting shaft is provided with a first spring, and two ends of the first spring are respectively and fixedly connected with the fixed plate and the moving plate.

Preferably, protection device includes motor, curb plate, lead screw, slider, spliced pole, first protective housing, second protective housing and protection pad, the one end fixedly connected with curb plate of supporting seat, and the number of curb plate is total two, and distributes about being, is located the right side the one end fixedly connected with motor of curb plate, the terminal fixedly connected with lead screw of main shaft of motor, and lead screw and another one curb plate rotate and be connected, the outside screwed connection of lead screw has the slider, the top fixedly connected with spliced pole of slider, the first protective housing of top fixedly connected with of connection, the other end fixedly connected with second protective housing of supporting seat, and first protective housing and second protective housing are corresponding.

Preferably, the inner side of the first protective case is fixedly connected with a protective pad for preventing the decoder main body from being damaged, and the protective pad is made of a rubber pad.

Preferably, fixing device includes first splint, adjusting screw, clamping ring, second limit switch, second spring, the inboard equal screwed connection in both ends of base has adjusting screw, adjusting screw's the outside screwed connection has first splint, the inboard fixedly connected with second limit switch and the second spring of base, the clamping ring that the one end fixedly connected with of second spring can press second limit switch.

Preferably, fixing device includes sleeve, third limit switch, second splint and adjusting screw, the equal fixedly connected with sleeve in both ends of base, telescopic one end fixedly connected with third limit switch, telescopic one end screwed connection has adjusting screw, adjusting screw's the other end rotates and is connected with the second splint.

Preferably, the method comprises the following steps:

the method comprises the following steps: firstly, fixing a base and an external fixing piece together through a fixing device;

step two: the decoding instrument main body is limited and fixed through the protection device, and meanwhile, the protection device can be controlled through the fingerprint identification module;

step three: when the decoding instrument main body is taken out from the inner side of the protection device, the alarm device is taken out to alarm outside through the alarm lamp.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the arrangement of the fixed cylinder, the movable plate, the connecting shaft, the first spring, the fixed plate, the first limit switch and the stop block, when the decoding instrument main body is taken down from the surface of the supporting seat, the alarm lamp gives an alarm to remind a worker to process in time, so that the decoding instrument main body is prevented from being lost;

2. according to the invention, the decoder main body is protected through the first protective shell and the second protective shell by the fingerprint identification module, the motor, the lead screw, the sliding block, the connecting column, the first protective shell, the second protective shell and the protective pad, so that the decoder main body cannot be taken out of the inner sides of the first protective shell and the second protective shell, and the fingerprint identification module can ensure that the first protective shell and the second protective shell can be opened by specific personnel, thereby preventing the loss of the decoder main body;

3. according to the invention, through the arrangement of the first clamping plate, the adjusting screw, the pressing ring, the second limit switch, the second spring, the sleeve, the third limit switch, the second clamping plate and the adjusting screw, the first clamping plate or the second clamping plate can be selected to fix the base according to different use conditions, and when the base is disassembled, the alarm lamp can give an alarm to the outside to remind a worker to process in time;

4. according to the invention, through the arrangement of the taking alarm device, the protection device, the fixing device, the fingerprint identification module, the alarm lamp and the protective cover, multiple antitheft lines are formed through the mutual cooperation of the taking alarm device, the protection device and the fixing device, so that the phenomenon that the decoding instrument main body is stolen can be further avoided, and the loss of the decoding instrument main body can be prevented.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the connecting column of the present invention;

FIG. 3 is a schematic view of the internal mounting structure of the picking alarm device of the present invention;

FIG. 4 is a schematic view of the mounting structure of the warning lamp of the present invention;

FIG. 5 is a schematic view of the mounting structure of the first clamping plate according to the present invention;

FIG. 6 is a schematic view of the mounting structure of the second clamping plate of the present invention;

fig. 7 is a schematic view of an installation structure of the first protective case of the present invention.

In the figure: 1-taking alarm device, 101-fixed cylinder, 102-movable plate, 103-connecting shaft, 104-first spring, 105-fixed plate, 106-first limit switch, 107-stop block, 2-protection device, 201-motor, 202-side plate, 203-lead screw, 204-slide block, 205-connecting column, 206-first protection shell, 207-second protection shell, 208-protection pad, 3-fixing device, 301-first clamping plate, 302-adjusting screw, 303-press ring, 304-second limit switch, 305-second spring, 306-sleeve, 307-third limit switch, 308-second clamping plate, 309-adjusting screw, 4-base, 5-controller, 6-decoder main body, 7-fingerprint identification module, 8-alarm lamp, 9-protective cover, 10-supporting seat and 11-sound outlet

Detailed Description

Example 1:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 7, the present invention provides a technical solution:

the utility model provides an internet decoding appearance with prevent losing function and application method thereof, includes base 4 and decoding appearance main part 6, the one end fixedly connected with supporting seat 10 of base 4, the one end fixedly connected with controller 5 of base 4, the one end fixedly connected with alarm device 1 of taking of supporting seat 10, the one end fixedly connected with protection device 2 of supporting seat 10, the one end fixedly connected with alarm lamp 8 of protection device 2, the outside of alarm lamp 8 is provided with safety cover 10, and safety cover 10 and protection device 2 fixed connection, vocal hole 11 has been seted up to the inboard of safety cover 10, the one end fixedly connected with fixing device 3 of base 4, decoding appearance main part 6 has been placed to fixing device 3's inboard, the one end fixedly connected with fingerprint identification module 7 of fixing device 3.

Further, the taking alarm device 1 comprises a fixed cylinder 101, a moving plate 102, a connecting shaft 103, a first spring 104, a fixed plate 105, a first limit switch 106 and a stopper 107, wherein the fixed cylinder 101 is fixedly connected to the inner side of one end of the base 4, the fixed plate 105 is fixedly connected to the inner side of the fixed cylinder 101, the connecting shaft 103 is slidably connected to the inner side of the fixed plate 105, the moving plate 102 is fixedly connected to the bottom end of the connecting shaft 103, the moving plate 102 is slidably connected with the fixed cylinder 101, the connecting shaft 103 can be limited by the moving plate 102, the stopper 107 is fixedly connected to the other end of the connecting shaft 103, and the first limit switch 106 for limiting the movement of the moving plate 102 is fixedly connected to one end, close to the moving plate 102, of the fixed plate 105;

further, a first spring 104 is arranged outside the connecting shaft 103, two ends of the first spring 104 are respectively and fixedly connected with the fixed plate 105 and the moving plate 102, and the moving plate 102 can be driven to move in the vertical direction by the first spring 104;

further, the protection device 2 comprises a motor 201, a side plate 202, a screw 203, a slider 204, a connecting column 205, a first protection shell 206, a second protection shell 207 and a protection pad 208, one end of the support base 10 is fixedly connected with the side plate 202, and the number of the side plates 202 is two, the side plates are distributed in the left and right direction, one end of the side plate 202 positioned on the right side is fixedly connected with a motor 201, the tail end of a main shaft of the motor 201 is fixedly connected with a screw rod 203, the screw rod 203 is rotatably connected with the other side plate 202, the outer side of the screw rod 203 is spirally connected with a slide block 204, the top end of the slide block 204 is fixedly connected with a connecting column 205, the top end of the connection 205 is fixedly connected with a first protective shell 206, the other end of the supporting seat 10 is fixedly connected with a second protective shell 207, the first protective shell 206 corresponds to the second protective shell 207, the first protective shell 206 and the second protective shell 207 can limit and fix the decoder main body 6;

further, a protection pad 108 for preventing the decoder main body 6 from being damaged is fixedly connected to the inner side of the first protection case 206, and the protection pad 208 is made of a rubber pad;

further, the fixing device 3 comprises a first clamping plate 301, an adjusting screw 302, a pressing ring 303, a second limit switch 304 and a second spring 305, the inner sides of the two ends of the base 4 are both in threaded connection with the adjusting screw 302, the outer side of the adjusting screw 302 is in threaded connection with the first clamping plate 301, the inner side of the base 4 is fixedly connected with the second limit switch 302 and the second spring 305, one end of the second spring 305 is fixedly connected with the pressing ring 303 capable of pressing the second limit switch 304, and when the pressing ring 303 is separated from the second limit switch 304, the second limit switch 304 can control the alarm lamp 8 to start alarming to the outside to remind a worker to process in time;

further, the method comprises the following steps:

the method comprises the following steps: firstly, fixing a base 4 and an external fixing piece together through a fixing device 3;

step two: the decoding instrument main body 6 is limited and fixed through the protection device 2, and meanwhile, the protection device 2 can be controlled through the fingerprint identification module 7;

step three: when the decoding instrument main body 6 is taken out from the inner side of the protection device 2, the alarm device 1 is taken out to alarm through the alarm lamp 8.

The working process is as follows: before the invention is used, power is supplied by an external power supply, firstly, the base 4 and an external fixing piece are fixed together by the fixing device 3, meanwhile, the fixing device 3 can be selected to be fixed together with the external fixing piece horizontally or vertically, when the first clamping plate 301 is used, a worker places the external fixing piece between the base 4 and the first clamping plate 301, then the adjusting screw 302 is rotated to enable the end surface of the base 4 and the first clamping plate 301 to gradually approach until the external fixing piece is clamped by the base 4 and the first clamping plate 301, thereby realizing the limiting and fixing of the base 4, meanwhile, one end of the adjusting screw 302 can also press the second spring 305 and the second limit switch 304 by the press ring 303, when the first clamping plate 301 and the base 4 are disassembled, the second spring 305 can bounce the press ring 303, thereby separating the press ring 303 and the second limit switch 304, then the second limit switch 304 controls the alarm lamp 8 to alarm to the outside, so as to remind the staff to deal with the alarm in time, then the staff places the main body 6 of the decoding instrument between the first protective shell 206 and the second protective shell 207, then the staff places fingers on the fingerprint identification module 7, the fingerprint identification module 7 controls the motor 201 to drive the lead screw 203 to slide on the inner side of the sliding block 204, so that the sliding block 204 drives the second protective shell 207 and the protective pad 208 to gradually clamp the main body 6 of the decoding instrument through the connecting column 205, and only the fingerprint identification module 7 can control the operation of the motor 201, meanwhile, the main body 6 of the decoding instrument drives the moving plate 102 to move downwards away from the first limit switch 106 through the stopper 107 and the connecting shaft 103, when the main body 6 of the decoding instrument is taken away from the moving plate of the stopper 107, the first spring 104 drives the moving plate 102 to press the first limit switch 106, the first limit switch 106 is made to control the alarm lamp 8 to alarm to the outside, thereby preventing the loss of the main body 6 of the decoding instrument.

Example 2:

referring to fig. 1, fig. 2, fig. 3, fig. 6, and fig. 7, the present invention provides a technical solution:

the utility model provides an internet decoding appearance with prevent losing function and application method thereof, including base 4 and decoding appearance main part 6, the one end fixedly connected with supporting seat 10 of base 4, the one end fixedly connected with controller 5 of base 4, the one end fixedly connected with alarm device 1 of taking of supporting seat 10, the one end fixedly connected with protection device 2 of supporting seat 10, the one end fixedly connected with alarm lamp 8 of protection device 2, alarm lamp 8's the outside is provided with safety cover 10, and safety cover 10 and protection device 2 fixed connection, the one end fixedly connected with fixing device 3 of base 4, decoding appearance main part 6 has been placed to fixing device 3's inboard, fixing device 3's one end fixedly connected with fingerprint identification module 7.

Further, the taking alarm device 1 comprises a fixed cylinder 101, a moving plate 102, a connecting shaft 103, a first spring 104, a fixed plate 105, a first limit switch 106 and a stopper 107, wherein the fixed cylinder 101 is fixedly connected to the inner side of one end of the base 4, the fixed plate 105 is fixedly connected to the inner side of the fixed cylinder 101, the connecting shaft 103 is slidably connected to the inner side of the fixed plate 105, the moving plate 102 is fixedly connected to the bottom end of the connecting shaft 103, the moving plate 102 is slidably connected with the fixed cylinder 101, the connecting shaft 103 can be limited by the moving plate 102, the stopper 107 is fixedly connected to the other end of the connecting shaft 103, and the first limit switch 106 for limiting the movement of the moving plate 102 is fixedly connected to one end, close to the moving plate 102, of the fixed plate 105;

further, a first spring 104 is arranged outside the connecting shaft 103, two ends of the first spring 104 are respectively and fixedly connected with the fixed plate 105 and the moving plate 102, and the moving plate 102 can be driven to move in the vertical direction by the first spring 104;

further, the protection device 2 comprises a motor 201, a side plate 202, a screw 203, a slider 204, a connecting column 205, a first protection shell 206, a second protection shell 207 and a protection pad 208, one end of the support base 10 is fixedly connected with the side plate 202, and the number of the side plates 202 is two, the side plates are distributed in the left and right direction, one end of the side plate 202 positioned on the right side is fixedly connected with a motor 201, the tail end of a main shaft of the motor 201 is fixedly connected with a screw rod 203, the screw rod 203 is rotatably connected with the other side plate 202, the outer side of the screw rod 203 is spirally connected with a slide block 204, the top end of the slide block 204 is fixedly connected with a connecting column 205, the top end of the connection 205 is fixedly connected with a first protective shell 206, the other end of the supporting seat 10 is fixedly connected with a second protective shell 207, the first protective shell 206 corresponds to the second protective shell 207, the first protective shell 206 and the second protective shell 207 can limit and fix the decoder main body 6;

further, a protection pad 108 for preventing the decoder main body 6 from being damaged is fixedly connected to the inner side of the first protection case 206, and the protection pad 208 is made of a rubber pad;

further, the fixing device 3 comprises a sleeve 306, a third limit switch 307, a second clamp plate 308 and an adjusting screw 309, the two ends of the base 4 are fixedly connected with the sleeve 306, one end of the sleeve 306 is fixedly connected with the third limit switch 307, one end of the sleeve 306 is spirally connected with an adjusting screw 309, the other end of the adjusting screw 309 is rotatably connected with the second clamp plate 308, when the sleeve 306 is separated from the external fixing piece, the third limit switch 307 is gradually separated from the external fixing piece, and at the moment, the third limit switch 307 controls the alarm lamp 8 to alarm outwards;

further, the method comprises the following steps:

the method comprises the following steps: firstly, fixing a base 4 and an external fixing piece together through a fixing device 3;

step two: the decoding instrument main body 6 is limited and fixed through the protection device 2, and meanwhile, the protection device 2 can be controlled through the fingerprint identification module 7;

step three: when the decoding instrument main body 6 is taken out from the inner side of the protection device 2, the alarm device 1 is taken out to alarm through the alarm lamp 8.

The working process is as follows: before the invention is used, power is supplied by an external power supply, firstly, a base 4 is fixed with an external fixing piece through a fixing device 3, meanwhile, the fixing device 3 can be selected to be fixed with the external fixing piece horizontally or vertically, when a second clamping plate 308 is needed, a worker sleeves a sleeve 306 on the outer side of the external fixing piece, the external fixing piece presses a third limit switch 307, then the second clamping plate 308 is driven by an adjusting screw 309 to clamp the external fixing piece, when the sleeve 306 is separated from the external fixing piece, the third limit switch 307 is gradually separated from the external fixing piece, at the moment, the third limit switch 307 controls an alarm lamp 8 to alarm, then the worker places a decoder main body 6 between a first protective shell 206 and a second protective shell 207, and then places fingers on a fingerprint identification module 7, the motor 201 is controlled by the fingerprint identification module 7 to drive the lead screw 203 to slide on the inner side of the sliding block 204, the sliding block 204 is enabled to drive the second protective shell 207 and the protective pad 208 to gradually clamp the main body 6 of the decoding instrument through the connecting column 205, only the fingerprint identification module 7 can control the motor 201 to work, meanwhile, the main body 6 of the decoding instrument can drive the movable plate 102 to move downwards through the stopper 107 and the connecting shaft 103 to be away from the first limit switch 106, when the main body 6 of the decoding instrument is taken away from the stopper 107, the movable plate 102 is driven by the first spring 104 to press the first limit switch 106, the first limit switch 106 controls the alarm lamp 8 to alarm outwards, and therefore the decoding instrument main body 6 is prevented from being lost.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.