CN114421234A

CN114421234A - Anti-falling device for mounting electronic components

Info

Publication number: CN114421234A
Application number: CN202210251485.6A
Authority: CN
Inventors: 赖洁丹
Original assignee: Shenzhen Youlete Technology Co ltd
Current assignee: Shenzhen Youlete Technology Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-04-29
Anticipated expiration: 2042-03-15
Also published as: CN114421234B

Abstract

The invention relates to an anti-falling device, in particular to an anti-falling device for mounting an electronic component. The invention provides an anti-drop device for mounting an electronic component, which is convenient to disassemble. The utility model provides an anti-drop device is used in electronic components installation, including electric box, installation wire, plug, sliding sleeve and anti-drop mechanism etc. the left and right sides of electric box front side lower part all is provided with the jack, and the electric box middle part is equipped with the sliding sleeve, and the equal slidingtype in sliding sleeve left and right sides is connected with the installation wire, and the installation wire front end all is connected with the plug, and the plug all inserts on the electric box, is equipped with the anti-drop mechanism that is used for preventing the jack of plug and electric box from breaking away from between electric box and two installation wires. According to the invention, the mounting line is clamped through the cooperation of the fixture block and the first limiting plate, so that the mounting line is prevented from shaking, the looseness of the plug is avoided, the plug is prevented from being separated from the electric box through the cooperation of the second limiting plate and the limiting block for fixing the plug, the plug can be pulled out manually and directly, and the disassembly is convenient.

Description

Anti-falling device for mounting electronic components

Technical Field

The invention relates to an anti-falling device, in particular to an anti-falling device for mounting an electronic component.

Background

The PCB board is connected through electric wire and electronic components in the use, but when electronic components used to shake the occasion or take place to fall in the use, electric wire, PCB board and electronic components took place to become flexible, drop very easily under the condition that receives to last vibrations, lead to electric wire and PCB board and electronic components bad contact, even complete separation, and then influenced the normal work of whole equipment. The anti-drop device for mounting the electronic component in the prior art is characterized in that after the PCB and the electronic component are connected through the electric wire, the electric wire is generally fixed on the electronic component through a fixing piece, so that loosening and dropping are prevented, but the anti-drop device is not convenient to detach.

How to design an easy to detach's dropout prevention means for electronic components installation is the technical problem that this patent need solve.

Disclosure of Invention

In order to overcome the shortcoming that the electric wire in the prior art is generally fixed on electronic components through the mounting, is not convenient for dismantle, the technical problem that solve is: provided is an anti-drop device for mounting an electronic component, which is convenient to disassemble.

The technical scheme of the invention is as follows: the utility model provides an anti-drop device is used in installation of electronic components, including the electric box, the installation wire, the plug, the sliding sleeve, anti-disengaging mechanism and fixed establishment, the left and right sides of electric box front side lower part all is provided with the jack, the electric box middle part is equipped with the sliding sleeve, the equal slidingtype of sliding sleeve left and right sides is connected with the installation wire, the installation wire front end all is connected with the plug, the plug all inserts on the electric box, be equipped with the anti-disengaging mechanism that is used for preventing the jack of plug and electric box from breaking away from between electric box and two installation wires, electric box front side lower part is equipped with and is used for carrying out the fixed establishment fixed to the plug.

According to a preferred technical scheme, the anti-falling mechanism comprises a first spring, a first limiting plate, a clamping block and a second spring, the first spring is connected to the left side and the right side of the middle part of the front side of the electric box, one end of the first spring is connected with the first limiting plate, the installation wires penetrate through the first limiting plate on the same side, the clamping blocks used for preventing the plug from being separated from the jack of the electric box are arranged on the lower portion of the first limiting plate in a sliding mode and are in contact with the installation wires on the same side, and two second springs are connected between the clamping blocks and the first limiting plate on the same side.

According to a preferred technical scheme, the fixing mechanism comprises a second limiting plate, U-shaped rods, sliding plates, a first sliding rail, third springs and torsion springs, the first sliding rail is arranged on the lower portion of the front side of the electric box, the sliding plates are arranged on the left side and the right side of the first sliding rail in a sliding mode, the two third springs are connected between the sliding plates and the first sliding rail, the U-shaped rods are arranged on the tops of the sliding plates, second limiting plates used for limiting plugs in a matched mode are arranged on the outer sides of the lower portions of the U-shaped rods in a rotating mode, the second limiting plates are in contact with the plugs on the same side, and the torsion springs are connected between the second limiting plates and the U-shaped rods on the same side.

The plug mechanism comprises a movable rod, a pull rod, a push plate, a second slide rail, a fourth spring, a first slide rod and a fifth spring, the second slide rail is arranged in the middle of the front side of the electric box, the movable rods are arranged on the left and right sides of the second slide rail in a sliding mode, the lower sides of the movable rods are in contact with the slide plates on the same side, the fourth spring is connected between the movable rods and the second slide rail, the first slide rod is arranged in the middle of the front side of the electric box, the pull rod is arranged on the front side of the first slide rod in a sliding mode, the fifth spring is connected between the pull rod and the first slide rod, the push plates are arranged on the left and right sides of the pull rod, and the push plates are in contact with the movable rods on the same side and the first limiting plate on the same side.

As a preferable technical solution of the present invention, the electronic component mounting drop prevention device further includes a stabilizing mechanism for stabilizing the electronic component mounting drop prevention device, the stabilizing mechanism includes a second slide bar, a sixth spring and a suction cup, the second slide bar is slidably disposed on both left and right sides of the front side of the bottom of the electrical box, the sixth spring is connected between the second slide bar and the electrical box, and the suction cup for stabilizing the electronic component mounting drop prevention device is disposed on the front side of the second slide bar.

As a preferred technical scheme of the invention, the fixing device further comprises a fixing mechanism for fixing the plug inserted in the electric box, the fixing mechanism comprises a first clamping plate, a movable part, a third slide rail and a seventh spring, the third slide rail is arranged on the left side and the right side of the front side of the bottom of the electric box, the movable part is arranged on the third slide rail in a sliding manner, the first clamping plate for limiting the plug is arranged between the tops of the movable parts, the first clamping plate is in contact with the two plugs, and the seventh spring is connected between the movable part and the third slide rail on the same side.

As a preferred technical scheme of the invention, the anti-loosening mechanism for preventing the front end and the rear end of the installation line from being separated from the electric box and the PCB is further included, the anti-loosening mechanism comprises an eighth spring, movable plates, a second clamping plate, fourth sliding rails and a ninth spring, the movable plates are arranged in the middle of the two installation lines, the eighth spring is connected between the movable plates and the sliding sleeve on the rear side, four groups of fourth sliding rails are arranged at the tops of the movable plates, two fourth sliding rails are arranged in each group, the second clamping plate for limiting the installation lines is arranged between each group of the fourth sliding rails in a sliding manner, and the ninth spring is connected between each fourth sliding rail and the second clamping plate on the same side.

As a preferred technical scheme of the invention, the left side and the right side of the lower part of the front side of the electric box are both provided with limit blocks.

The invention has the advantages that:

1. the plug is prevented from being loosened by the fact that the mounting line is clamped through the fact that the clamping block is matched with the first limiting plate, the plug is fixed through the fact that the second limiting plate is matched with the limiting block, the plug is prevented from being separated from the electric box, the plug can be pulled out manually and directly, and disassembly is facilitated;

2. according to the plug, the first limiting plate and the upper part of the first limiting plate are driven to move forwards by the push plate, so that the plug is pulled out of the clamping block forwards through the mounting line, and therefore people can pull out the plug conveniently;

3. the device is stabilized by adsorbing the sucker on the support for supporting the device, so that the electric box can be prevented from sliding, the installation wire is pulled, and the plug and the jack of the electric box are loosened;

4. the plug is limited by the first clamping plate, so that the plug is further prevented from being separated from the jack of the electric box;

5. when people pull the rear end of the mounting wire to be connected with the PCB, the mounting wire drives the movable plate and the upper component of the movable plate to move backwards, and after the eighth spring is compressed to the limit, the mounting wire is pulled to the limit, so that the plug can be prevented from being pulled out by pulling the rear end of the mounting wire;

6. the second clamping plate is limited by the sliding sleeve at the rear side, so that the rear end of the mounting wire can be prevented from being separated from the PCB when the front end of the mounting wire is pulled.

Drawings

Fig. 1 is a schematic perspective view of a first perspective structure according to the present invention.

Fig. 2 is a perspective view of a second perspective structure according to the present invention.

Fig. 3 is a schematic perspective view of the anti-separation mechanism of the present invention.

Fig. 4 is a schematic view of a first partially separated body structure of the fixing mechanism of the present invention.

Fig. 5 is a perspective view of a second portion of the fastening mechanism of the present invention.

Fig. 6 is a schematic perspective view of a first part of the plugging mechanism of the present invention.

Fig. 7 is a schematic perspective view of a second portion of the plugging mechanism of the present invention.

Fig. 8 is a perspective view of the stabilizing mechanism of the present invention.

FIG. 9 is a perspective view of the securing mechanism of the present invention.

Fig. 10 is a schematic view of a first partial body structure of the anti-loosening mechanism of the present invention.

Fig. 11 is a schematic view of a second partial body structure of the anti-loosening mechanism of the present invention.

Labeled as: 1-an electric box, 2-a mounting line, 3-a plug, 31-a sliding sleeve, 4-an anti-falling mechanism, 41-a first spring, 42-a first limit plate, 43-a fixture block, 44-a second spring, 5-a fixed mechanism, 51-a second limit plate, 52-a U-shaped rod, 53-a sliding plate, 54-a first sliding rail, 55-a third spring, 56-a torsion spring, 6-a plugging mechanism, 61-a movable rod, 62-a pull rod, 63-a push plate, 64-a second sliding rail, 65-a fourth spring, 66-a first sliding rod, 67-a fifth spring, 7-a stable mechanism, 71-a second sliding rod, 72-a sixth spring, 73-a sucker, 8-a stable mechanism, 81-a first clamping plate and 82-a movable part, 83-a third slide rail, 84-a seventh spring, 9-a loosening prevention mechanism, 91-an eighth spring, 92-a movable plate, 93-a second catch plate, 94-a fourth slide rail and 95-a ninth spring.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Example 1

The utility model provides an anti-drop device is used in installation of electronic components, refer to fig. 1-5, including electric box 1, the installation wire 2, plug 3, sliding sleeve 31, anti-drop mechanism 4 and fixed establishment 5, the left and right sides of 1 front side lower part of electric box all is provided with the jack, 1 middle part of electric box is equipped with sliding sleeve 31, the equal slidingtype in sliding sleeve 31 left and right sides is connected with

installation wire

2, 2 front ends of installation wire all are connected with plug 3, plug 3 all inserts on electric box 1, be equipped with anti-drop mechanism 4 between electric box 1 and two installation wires 2, anti-drop mechanism 4 is used for preventing that plug 3 and electric box 1's jack from breaking away from, 1 front side lower part of electric box is equipped with fixed establishment 5, fixed establishment 5 is used for fixing plug 3, the left and right sides of 1 front side lower part of electric box all is equipped with the stopper.

Referring to fig. 3, anti-disengaging mechanism 4 is including first spring 41, first limiting plate 42, fixture block 43 and second spring 44, the left and right sides at electric box 1 front side middle part all is connected with first spring 41, first spring 41 one end all is connected with first limiting plate 42, installation wire 2 all passes the first limiting plate 42 of homonymy, the equal slidingtype of first limiting plate 42 lower part is equipped with fixture block 43, fixture block 43 is used for preventing plug 3 and electric box 1's jack from breaking away from, fixture block 43 all contacts with the installation wire 2 of homonymy, fixture block 43 all is connected with two second springs 44 with between the first limiting plate 42 of homonymy.

Referring to fig. 4-5, the fixing mechanism 5 includes a second limiting plate 51, a U-shaped rod 52, a sliding plate 53, a first sliding rail 54, a third spring 55 and a torsion spring 56, the first sliding rail 54 is disposed on the lower portion of the front side of the electrical box 1, the sliding plates 53 are slidably disposed on the left and right sides of the first sliding rail 54, two third springs 55 are connected between the sliding plates 53 and the first sliding rail 54, the U-shaped rod 52 is disposed on the top of the sliding plates 53, a second limiting plate 51 is rotatably disposed on the outer side of the lower portion of the U-shaped rod 52, the second limiting plate 51 is used for being matched with a limiting block to limit the plug 3, the second limiting plate 51 is contacted with the plug 3 on the same side, and the torsion spring 56 is connected between the second limiting plate 51 and the U-shaped rod 52 on the same side.

When the device is used, the first spring 41 is stretched and the second spring 44 is compressed, the device is connected with a PCB (printed circuit board) through the installation wire 2, the second spring 44 drives the clamping block 43 to be matched with the first limiting plate 42 to clamp the installation wire 2, the installation wire 2 is prevented from shaking, the plug 3 is prevented from loosening, the sliding plate 53 is moved inwards, the third spring 55 is compressed, the sliding plate 53 drives the second limiting plate 51, the U-shaped rod 52 and the torsion spring 56 to move inwards, then people manually align the plug 3 with the jack of the electric box 1, insert the plug 3 into the jack of the electric box 1, the plug 3 drives the clamping block 43, the first limiting plate 42 and the second spring 44 to move backwards, the first spring 41 resets accordingly, then the sliding plate 53 is loosened, further the sliding plate 53, the second limiting plate 51, the U-shaped rod 52 and the torsion spring 56 are driven to reset outwards under the reset action of the third spring 55, the second limiting plate 51 is contacted with the plug 3, make plug 3 drive second limiting plate 51 and rotate, the deformation of torsional spring 56, and then drive second limiting plate 51 cooperation stopper fixed plug 3 under the effect of torsional spring 56, prevent that plug 3 from breaking away from electric box 1, when people need pull out plug 3, remove forward and extract plug 3, plug 3 drives fixture block 43, first limiting plate 42 and second spring 44 move forward, first spring 41 is stretched, plug 3 and the separation of second limiting plate 51 simultaneously, and then drive the reversal of second limiting plate 51 and reset under the effect that torsional spring 56 resets, loose plug 3 behind the pine, make plug 3 blocked by second limiting plate 51.

Example 2

On the basis of embodiment 1, referring to fig. 1, 6 and 7, the electrical box further includes a plugging mechanism 6, the plugging mechanism 6 includes a movable rod 61, a pull rod 62, a push plate 63, a second slide rail 64, a fourth spring 65, a first slide rod 66 and a fifth spring 67, the second slide rail 64 is disposed in the middle of the front side of the electrical box 1, the movable rods 61 are slidably disposed on the left and right sides of the second slide rail 64, the lower sides of the movable rods 61 are both in contact with the slide plates 53 on the same side, the fourth spring 65 is connected between the movable rods 61 and the second slide rail 64, the first slide rod 66 is disposed in the middle of the front side of the electrical box 1, the pull rod 62 is slidably disposed on the front side of the first slide rod 66, the fifth spring 67 is connected between the pull rod 62 and the first slide rod 66, the push plates 63 are disposed on the left and right sides of the pull rod 62, and the push plates 63 are both in contact with the movable rods 61 on the same side and the first limiting plate 42 on the same side.

The fourth spring 65 is stretched in the initial state, when a user needs to insert the plug 3, the plug 3 is manually aligned with the jack of the electrical box 1, the plug 3 is inserted into the jack of the electrical box 1, the plug 3 drives the clamping block 43, the first limit plate 42 and the second spring 44 to move backwards, the first spring 41 is reset along with the clamping block, so that the first limit plate 42 is contacted with the push plate 63, when the user needs to pull down the plug 3, the pull rod 62 is moved forwards, the fifth spring 67 is stretched, the pull rod 62 drives the push plate 63 to move forwards, the push plate 63 is separated from the movable rod 61, the movable rod 61 is driven to move inwards under the reset action of the fourth spring 65, the movable rod 61 drives the sliding plate 53 to move inwards, the third spring 55 is compressed, the second limit plate 51, the U-shaped rod 52 and the torsion spring 56 are driven to move inwards, so that the second limit plate 51 is separated from the plug 3, and simultaneously the push plate 63 moves forwards to drive the first limit plate 42 to move forwards, first spring 41 is stretched, first limiting plate 42 drives fixture block 43 and second spring 44 and moves forward, make fixture block 43 pull plug 3 forward through the installation wire 2, and then extract plug 3 from electric box 1, inwards move movable rod 61 after that, fourth spring 65 is stretched, movable rod 61 and slide 53 separation, and then drive slide 53 under the effect that third spring 55 resets, second limiting plate 51, U type pole 52 and torsional spring 56 move outwards and reset, loosen pull rod 62 again, and then drive pull rod 62 and push pedal 63 and move backward and reset under the effect that fifth spring 67 resets, make push pedal 63 and first limiting plate 42 separate, plug 3 is blocked by second limiting plate 51, so, people of being convenient for pull out plug 3.

Referring to fig. 1, 8 and 9, the electronic component mounting anti-falling device further comprises a stabilizing mechanism 7, wherein the stabilizing mechanism 7 comprises a second sliding rod 71, a sixth spring 72 and a suction cup 73, the second sliding rod 71 is arranged on the left side and the right side of the front side of the bottom of the electrical box 1 in a sliding mode, the sixth spring 72 is connected between the second sliding rod 71 and the electrical box 1, the suction cup 73 is arranged on the front side of the second sliding rod 71, and the suction cup 73 is used for stabilizing the electronic component mounting anti-falling device.

Adsorb sucking disc 73 on the support that supports this device, and then stabilize this device, sixth spring 72 plays the cushioning effect, so, can prevent that electric box 1 from taking place to slide for the installation wire 2 is pulled, leads to the jack of plug 3 and electric box 1 to appear becoming flexible.

Referring to fig. 1, still including stabilizing mean 8, stabilizing mean 8 is including first cardboard 81, the movable part 82, third slide rail 83 and seventh spring 84, the left and right sides of electric box 1 bottom front side all is equipped with third slide rail 83, it is equipped with movable part 82 all to slidingtype on the third slide rail 83, be equipped with first cardboard 81 between the movable part 82 top, first cardboard 81 is used for spacing plug 3, first cardboard 81 contacts with two plug 3, be connected with seventh spring 84 between the third slide rail 83 of movable part 82 all and homonymy.

First cardboard 81 of downward movement, first cardboard 81 drives movable part 82 downstream, seventh spring 84 is compressed, treat plug 3 and insert electric box 1's jack after, loosen first cardboard 81, and then drive first cardboard 81 and movable part 82 rebound under the effect that seventh spring 84 resets and reset, make first cardboard 81 carry out spacingly to plug 3, further prevent that plug 3 and electric box 1's jack from breaking away from, repeat the above-mentioned operation and can extract plug 3.

Referring to fig. 1, fig. 10 and fig. 11, still including locking mechanism 9 that moves, locking mechanism 9 that moves is including eighth spring 91, fly leaf 92, second cardboard 93, fourth slide rail 94 and ninth spring 95, two installation line 2 middle parts all are equipped with fly leaf 92, fly leaf 92 all with be connected with eighth spring 91 between the sliding sleeve 31 of rear side, fly leaf 92 top all is equipped with four groups of fourth slide rails 94, every group's fourth slide rail 94 is two, all slidingtype is equipped with second cardboard 93 between every group's fourth slide rail 94, second cardboard 93 is used for spacing the installation line 2, fourth slide rail 94 all with be connected with ninth spring 95 between the second cardboard 93 of homonymy.

When people pull the rear end of the mounting line 2 to connect with the PCB, the mounting line 2 drives the movable plate 92, the second clamping plate 93, the fourth slide rail 94 and the ninth spring 95 to move backwards, the eighth spring 91 is compressed, when the eighth spring 91 is compressed to the limit, the pulling of the mounting line 2 is stopped, at this time, the mounting line 2 is described to be pulled to the limit, so that the plug 3 can be prevented from being pulled out by people pulling the mounting line 2, meanwhile, when the second clamping plate 93 moves backwards to contact with the sliding sleeve 31 at the rear side, the sliding sleeve 31 presses the second clamping plate 93 upwards, the ninth spring 95 is compressed, when the second clamping plate 93 passes through the sliding sleeve 31 at the rear side, the second clamping plate 93 is driven to move downwards to reset under the reset action of the ninth spring 95, so that the sliding sleeve 31 at the rear side limits the second clamping plate 93, the rear end of the mounting line 2 can be prevented from being pulled to cause the rear end of the mounting line 2 to be separated from the PCB, when people need to pull the rear end of the mounting line 2 to be separated from the PCB, the second cardboard 93 of upward movement, ninth spring 95 is compressed, make the sliding sleeve 31 separation of second cardboard 93 and rear side, and then drive the mounting wire 2 under the effect that eighth spring 91 resets, fly leaf 92, second cardboard 93, fourth slide rail 94 and ninth spring 95 move forward and reset, make 2 rear ends of mounting wire and PCB board break away from, the sliding sleeve 31 of rear side is crossed to the second cardboard 93 simultaneously, and then drive second cardboard 93 and move down and reset under the effect that ninth spring 95 resets.

It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims

1. The utility model provides an anti-drop device is used in electronic components installation, including electric box (1), installation wire (2), plug (3) and sliding sleeve (31), the left and right sides of electric box (1) front side lower part all is provided with the jack, electric box (1) middle part is equipped with sliding sleeve (31), the equal slidingtype of sliding sleeve (31) left and right sides is connected with installation wire (2), installation wire (2) front end all is connected with plug (3), plug (3) all insert on electric box (1), its characterized in that: the anti-disengaging mechanism is characterized by further comprising an anti-disengaging mechanism (4) and a fixing mechanism (5), the anti-disengaging mechanism (4) used for preventing the plug (3) from being disengaged from the jack of the electric box (1) is arranged between the electric box (1) and the two installation wires (2), and the fixing mechanism (5) used for fixing the plug (3) is arranged on the lower portion of the front side of the electric box (1).

2. An anti-drop device for mounting an electronic component as claimed in claim 1, wherein: anti-disengaging mechanism (4) are including first spring (41), first limiting plate (42), fixture block (43) and second spring (44), the left and right sides at electric box (1) front side middle part all is connected with first spring (41), first spring (41) one end all is connected with first limiting plate (42), installation wire (2) all passes first limiting plate (42) of homonymy, first limiting plate (42) lower part all slidingtype is equipped with fixture block (43) that are used for preventing jack breaking away from of plug (3) and electric box (1), fixture block (43) all contacts with installation wire (2) of homonymy, fixture block (43) all are connected with two second spring (44) between first limiting plate (42) of homonymy.

3. An anti-drop device for mounting an electronic component as claimed in claim 2, wherein: fixed establishment (5) is including second limiting plate (51), U type pole (52), slide (53), first slide rail (54), third spring (55) and torsional spring (56), electric box (1) front side lower part is equipped with first slide rail (54), the equal slidingtype in first slide rail (54) left and right sides is equipped with slide (53), slide (53) all with be connected with two third springs (55) between first slide rail (54), slide (53) top all is equipped with U type pole (52), the equal rotary type in U type pole (52) lower part outside is equipped with and is used for cooperating the stopper to carry out spacing second limiting plate (51) to plug (3), second limiting plate (51) all contacts with plug (3) of homonymy, second limiting plate (51) all with be connected with torsional spring (56) between the U type pole (52) of homonymy.

4. An anti-drop device for mounting an electronic component as claimed in claim 3, wherein: the plug-in and pull-out mechanism comprises a plug-in and pull-out mechanism (6) convenient for people to pull out a plug (3), the plug-in and pull-out mechanism (6) comprises a movable rod (61), a pull rod (62), a push plate (63), a second slide rail (64), a fourth spring (65), a first slide rod (66) and a fifth spring (67), the second slide rail (64) is arranged in the middle of the front side of an electric box (1), the movable rods (61) are arranged on the left side and the right side of the second slide rail (64) in a sliding mode, the lower sides of the movable rods (61) are in contact with the slide plates (53) on the same side, the fourth spring (65) is connected between the movable rods (61) and the second slide rail (64), the first slide rod (66) is arranged in the middle of the front side of the electric box (1), the pull rod (62) is arranged on the front side in a sliding mode, the fifth spring (67) is connected between the pull rod (62) and the first slide rod (66), the left side and the right side of the pull rod (62) are provided with the push plate (63), the push plates (63) are contacted with the movable rod (61) on the same side and the first limit plate (42) on the same side.

5. An anti-drop device for mounting an electronic component as claimed in claim 4, wherein: still including being used for stablizing this dropout prevention means for electronic components installation stabilizing mean (7), stabilizing mean (7) is including second slide bar (71), sixth spring (72) and sucking disc (73), the equal slidingtype of the left and right sides of electric box (1) bottom front side is equipped with second slide bar (71), second slide bar (71) all with electric box (1) between be connected with sixth spring (72), second slide bar (71) front side all is equipped with sucking disc (73) that are used for stablizing this dropout prevention means for electronic components installation.

6. An anti-drop device for mounting an electronic component as claimed in claim 5, wherein: still including firm plug (3) inserted firm mechanism (8) in electric box (1), firm mechanism (8) are including first cardboard (81), movable part (82), third slide rail (83) and seventh spring (84), the left and right sides of electric box (1) bottom front side all is equipped with third slide rail (83), it is equipped with movable part (82) all to slide on third slide rail (83), be equipped with between movable part (82) the top and be used for carrying out spacing first cardboard (81) to plug (3), first cardboard (81) and two plug (3) contacts, movable part (82) all with be connected with seventh spring (84) between third slide rail (83) of homonymy.

7. An anti-drop device for mounting an electronic component as claimed in claim 6, wherein: still including preventing locking mechanism (9) that installation line (2) front end and rear end and electric box (1) and PCB board break away from, locking mechanism (9) are including eighth spring (91), fly leaf (92), second cardboard (93), fourth slide rail (94) and ninth spring (95), two installation line (2) middle parts all are equipped with fly leaf (92), be connected with eighth spring (91) between fly leaf (92) all and sliding sleeve (31) of rear side, fly leaf (92) top all is equipped with four groups of fourth slide rail (94), every group fourth slide rail (94) are two, it is used for spacing second cardboard (93) to installation line (2) all to be equipped with between every group fourth slide rail (94) slidingtype, fourth slide rail (94) all are connected with ninth spring (95) between second cardboard (93) with the homonymy.

8. An anti-drop device for mounting an electronic component as claimed in claim 7, wherein: the left and right sides of the lower part of the front side of the electric box (1) are provided with limit blocks.