CN217406882U - Sliding unlocking type pulling-assistant device and case - Google Patents

Abstract

The application discloses slip unblock formula helps and pulls out ware and quick-witted case, and slip unblock formula helps pulls out the ware and includes: the pull-out assisting device comprises a pull-out assisting device body, a sliding rod, a movable sliding block and a pull-out assisting rod, wherein a threaded hole and a first screw matched with the threaded hole are formed in a first side wall of the pull-out assisting device body; the sliding rod can be arranged in the horizontal channel in a sliding mode, and a first limiting block is arranged on the sliding rod; the movable sliding block is arranged in the pulling aid body in a penetrating way and is connected with the sliding rod; the pulling-assisting rod is movably arranged on the side wall of the pulling-assisting device body through a first screw, an arc-shaped groove for the first limiting block to slide is formed in one side of the pulling-assisting device body towards the pulling-assisting rod, and a limiting groove for the first limiting block to be clamped into is formed in the upper portion of the arc-shaped groove towards the direction of the movable sliding block. This application helps the dead man to lock through movable slide block, and helps the dead man to realize through rotating and realize with the box realizing quick plug under not relying on the instrument condition.

Description

Sliding unlocking type pulling-assistant device and case

Technical Field

The application relates to the technical field of pluggable devices, in particular to a sliding unlocking type unplugging assisting device and a case.

Background

Most of the sliding unlocking type unplugging assistors used on the chassis in the current market are not provided with a self-locking function, and an unplugging assisting rod on the sliding unlocking type unplugging assistor is mostly movable or fixed by the damping force of a damping mechanism, so that the unplugging assisting device only has the unplugging assisting function but does not have the self-locking function; the board card is fixed on the sliding unlocking type pull-out assisting device through the screw, when the board card needs to be plugged into the case, a tool is needed, the board card cannot be quickly plugged into the case by the scheme, and when the case generates impact vibration, the pull-out assisting rod is easy to generate abnormal sound due to shaking.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a sliding unlocking type pulling assisting device and a case, a pulling assisting rod can be locked through a movable sliding block, and quick plugging and unplugging can be achieved under the condition that a tool is not depended on a box body through rotating the pulling assisting rod.

In a first aspect, the present application provides a sliding unlocking type extraction aid, comprising:

the first side wall of the pulling aid body is provided with a threaded hole and a first screw matched with the threaded hole, a horizontal channel is arranged in the pulling aid body, one end of the horizontal channel penetrates through the first side wall, a first positioning pin is arranged at the position, close to the second side wall of the pulling aid body, of the bottom of the pulling aid body, and the first positioning pin is used for being inserted into a case shell; wherein the first sidewall and the second sidewall are adjacent;

the sliding rod is arranged in the horizontal channel in a sliding mode, a first limiting block is arranged on the sliding rod, and the first limiting block can be exposed out of the first side wall;

the movable sliding block penetrates through the pulling aid body and is connected with the sliding rod, and the movable sliding block is used for driving the sliding rod to move;

help the dead lever, help the dead lever through first screw activity set up in help the lateral wall of pulling out the ware body, the one end of helping the dead lever can offset with chassis exterior through rotating, help the dead lever court one side of helping the ware body of pulling out is equipped with the confession the gliding arc wall of first stopper, the upper portion court of arc wall the direction of activity slider is equipped with the confession the spacing groove that first stopper card was gone into.

The sliding unlocking type pulling aid according to the embodiment of the first aspect of the application has at least the following beneficial effects: the bottom of the sliding unlocking type pulling aid main body is far away from the second side wall and is provided with a first positioning pin, the first positioning pin is used for being inserted into a case shell, the movable sliding block can be slidably arranged on the pulling aid main body and is connected with the sliding rod, the sliding rod can be driven to move when the movable sliding block slides, one end of the sliding block is provided with a first limiting block, the first limiting block can be exposed from the first side wall, and the first limiting block can be controlled to be exposed and retracted through the sliding movable sliding block. When the sliding unlocking type pulling-assistant device needs to be locked, the first limiting block is clamped into the limiting groove of the pulling-assistant rod through sliding the movable sliding block, so that the rotation of the pulling-assistant rod is limited, namely the pulling-assistant rod is locked; when the sliding unlocking type pulling aid is required to be unlocked, the movable sliding block is pushed inwards, the first limiting block is separated from the limiting groove and returns to the arc-shaped groove, the pulling aid rod can rotate, one end of the pulling aid rod can abut against the chassis shell through rotation, an operator applies upward force to the pulling aid rod through the other end, downward force is applied to the chassis shell by one end of the pulling aid rod, the first positioning pin is pulled out of the chassis shell, the pulling aid rod can be locked through the movable sliding block, and quick plugging and unplugging can be achieved with the chassis without depending on tools through rotation of the pulling aid rod.

According to some embodiments of the first aspect of the present application, the fixing column is a hollow structure, a thread is provided inside the fixing column, the fixing column is fixed to the fixing hole through a second screw, and a nut diameter of the second screw is larger than an aperture of the fixing hole.

According to some embodiments of the first aspect of the present application, the sliding rod is further provided with a guiding hole, and the bottom of the movable sliding block is provided with a guiding post matched with the guiding hole.

According to some embodiments of the first aspect of the present application, the horizontal channel runs through the first side wall and the third side wall of the extraction aid body, the first side wall and the third side wall are opposite, one end of the horizontal channel close to the third side wall is provided with a third screw and a compression spring, one end of the compression spring is connected with the third screw, and the other end of the compression spring is connected with the sliding rod.

According to some embodiments of the first aspect of the present application, the first side wall of the pulling aid body is further provided with a torsion spring, the torsion spring is sleeved on the first screw, the pulling aid rod is provided with a storage groove, one end of the torsion spring is placed in the storage groove and is abutted against the storage groove, and the other end of the torsion spring is inserted in the pulling aid body.

According to some embodiments of the first aspect of the present application, the bottom of the extraction aid body is away from the second side wall and is provided with a first connection hole, the first connection hole is used for being connected with a first plate body, and the first plate body is parallel to the bottom of the extraction aid body.

According to some embodiments of the first aspect of the present application, the bottom of helping the puller body is equipped with the connection lug, the lateral wall department of connecting the lug is equipped with the second connecting hole, the second connecting hole is used for being connected with the second plate body, just the second plate body with help the bottom of puller body perpendicular, help the bottom of puller body with be equipped with between the top of connecting the lug and supply first plate body male gap.

According to some embodiments of the first aspect of the present application, a second limiting block is further disposed on the first side wall of the extraction aid body, and the second limiting block is used for limiting a rotation position of the extraction aid rod.

In a second aspect, the present application further provides a chassis including the sliding unlocking type unplugging aid according to any one of the embodiments of the first aspect.

According to the case of the embodiment of the second aspect of the present application, at least the following advantages are provided: the bottom of the sliding unlocking type pulling aid main body is far away from the second side wall and is provided with a first positioning pin, the first positioning pin is used for being inserted into a case shell, the movable sliding block can be slidably arranged on the pulling aid main body and is connected with the sliding rod, the sliding rod can be driven to move when the movable sliding block slides, one end of the sliding block is provided with a first limiting block, the first limiting block can be exposed from the first side wall, and the first limiting block can be controlled to be exposed and retracted through the sliding movable sliding block. When the sliding unlocking type pulling-assistant device needs to be locked, the first limiting block is clamped into the limiting groove of the pulling-assistant rod through sliding the movable sliding block, so that the rotation of the pulling-assistant rod is limited, namely the pulling-assistant rod is locked; when the sliding unlocking type pulling aid is required to be unlocked, the movable sliding block is pushed inwards, the first limiting block is separated from the limiting groove and returns to the arc-shaped groove, the pulling aid rod can rotate, one end of the pulling aid rod can abut against the chassis shell through rotation, an operator applies upward force to the pulling aid rod through the other end, downward force is applied to the chassis shell by one end of the pulling aid rod, the first positioning pin is pulled out of the chassis shell, the pulling aid rod can be locked through the movable sliding block, and quick plugging and unplugging can be achieved with the chassis without depending on tools through rotation of the pulling aid rod.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a sliding unlocking type extraction aid according to some embodiments of the present application;

FIG. 2 is a schematic structural view from another perspective of a sliding unlocking extraction aid according to some embodiments of the present application;

FIG. 3 is an exploded schematic view of a slide unlocking type extraction aid according to some embodiments of the present application;

FIG. 4 is a schematic structural view of a movable slider of some embodiments of the present application;

FIG. 5 is a schematic structural view of a pullout aid lever according to some embodiments of the present application;

FIG. 6 is a side view of a slide unlocked extraction aid (when locked) according to some embodiments of the present application;

FIG. 7 is a cross-sectional view of a slide unlocked extraction aid (when locked) according to some embodiments of the present application;

FIG. 8 is a side view of a slide unlocking type extraction aid (when unlocked) according to some embodiments of the present application;

fig. 9 is a cross-sectional view of a slide unlocking assist in accordance with some embodiments of the present application (when unlocked).

The reference numbers are as follows:

an extraction aid body 100; a threaded hole 110; a first screw 120; a torsion spring 130; a first connection hole 140; a connection bump 150; second connection holes 151; a second stopper 160; a movable slider 200; a fixed column 210; a guide post 220; a pulling-aid lever 300; an arcuate slot 310; a retaining groove 320; a receiving groove 330; a slide lever 400; a first stopper 410; a fixing hole 420; a second screw 430; a guide hole 440; a compression spring 450; a third screw 460; a first positioning pin 510; and a second alignment pin 520.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, if there are first and second descriptions for distinguishing technical features, the description should not be interpreted as indicating or implying any relative importance or implying any number of indicated technical features or implying any precedence over indicated by the indicated technical features.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

With reference to fig. 1 to 3 and 5 to 9, in a first aspect, the present application provides a sliding unlocking type extraction aid, including: the pull-out assisting device comprises a pull-out assisting device body 100, a sliding rod 400, a movable sliding block 200 and a pull-out assisting rod 300, wherein a threaded hole 110 and a first screw 120 matched with the threaded hole 110 are arranged on a first side wall of the pull-out assisting device body 100, a horizontal channel is arranged in the pull-out assisting device body 100, one end of the horizontal channel penetrates through the first side wall, a first positioning pin 510 is arranged at the position, close to a second side wall of the pull-out assisting device body 100, of the bottom of the pull-out assisting device body 100, and the first positioning pin 510 is used for being inserted into a case shell; wherein the first sidewall and the second sidewall are adjacent; the sliding rod 400 can be slidably arranged in the horizontal channel, a first limiting block 410 is arranged on the sliding rod 400, and the first limiting block 410 can be exposed out of the first side wall; the movable sliding block 200 penetrates through the pulling aid body 100 and is connected with the sliding rod 400, and the movable sliding block 200 is used for driving the sliding rod 400 to move; the pulling-assisting rod 300 is movably arranged on the side wall of the pulling-assisting device body 100 through the first screw 120, one end of the pulling-assisting rod 300 can be abutted against the chassis shell through rotation, an arc-shaped groove 310 for the first limiting block 410 to slide is arranged on one side of the pulling-assisting device body 100, facing the upper portion of the arc-shaped groove 310, and a limiting groove 320 for the first limiting block 410 to be clamped in is arranged in the direction of the movable sliding block 200.

The bottom of pulling out the ware main part is kept away from second lateral wall department and is equipped with first locating pin 510, first locating pin 510 is used for inserting and establishes chassis exterior, activity slider 200 slidable sets up on helping pulling out ware body 100, activity slider 200 is connected with slide bar 400, through sliding activity slider 200, can drive slide bar 400 and remove, the one end of slide bar is equipped with first stopper 410, first stopper 410 can expose from first lateral wall, through sliding activity slider 200, can control first stopper 410 and expose and retract. When the sliding unlocking type pulling-assisted device needs to be locked, the first limiting block 410 is clamped into the limiting groove 320 of the pulling-assisted rod 300 by sliding the movable sliding block 200, so that the rotation of the pulling-assisted rod 300 is limited, namely the pulling-assisted rod 300 is locked; when the sliding unlocking type pulling-assisting device needs to be unlocked, the movable sliding block 200 is pushed inwards, the first limiting block 410 is separated from the limiting groove 320 and returns to the arc-shaped groove 310, the pulling-assisting rod 300 can rotate, one end of the pulling-assisting rod 300 can abut against the chassis shell through rotation, a worker applies an upward force to the pulling-assisting rod 300 through the other end, downward force is applied to the chassis shell through one end of the pulling-assisting rod 300, the first positioning pin 510 is pulled out of the chassis shell, the pulling-assisting rod 300 can be locked through the movable sliding block 200, and quick plugging and unplugging can be achieved through rotation of the pulling-assisting rod 300 and the chassis without depending on tools.

It should be noted that, the extraction aid body 100 is provided with marks corresponding to the locking and unlocking positions of the movable slider 200, for example, "ON" and "OFF" are engraved in the corresponding positions by using laser, when the movable slider 200 is located at the "ON" position, the extraction aid rod 300 is locked, when the movable slider 200 is located at the "OFF" position, the extraction aid rod 300 is unlocked, the extraction aid rod 300 can rotate, one end of the extraction aid rod 300 can abut against the chassis housing by rotating, and when a worker applies an upward force to the extraction aid rod 300 at the other end, one end of the extraction aid rod 300 applies a downward force to the chassis housing, so that the first positioning pin 510 is extracted from the chassis housing.

Referring to fig. 3 and 4, it can be understood that the sliding rod 400 is provided with a fixing hole 420, and the bottom of the movable slider 200 is provided with a fixing post 210 matching with the fixing hole 420. The movable sliding block 200 is inserted into the fixing hole 420 of the sliding rod 400 through the fixing column 210, so that the sliding rod 400 is fixedly connected with the movable sliding block 200, and when the movable sliding block 200 is moved, the sliding rod 400 can be driven to move in the horizontal channel, so that the first limiting block 410 is controlled to be exposed or retracted from the first side wall, and the locking and unlocking of the assistant pulling rod 300 are controlled.

It can be understood that the fixed column 210 is a hollow structure, and the inside is provided with a thread, the fixed column 210 is fixed on the fixing hole 420 through the second screw 430, the nut diameter of the second screw 430 is larger than the aperture of the fixing hole 420, and the position of the movable sliding block 200 is further fixed in the vertical direction, so that the movable sliding block 200 is prevented from shaking or falling off when in use, and meanwhile, the connection mode using the second screw 430 can also facilitate the disassembly of later maintenance.

With continued reference to fig. 3 and 4, it can be understood that the sliding rod 400 is further provided with a guide hole 440, the bottom of the movable slider 200 is provided with a wire guide column matched with the guide hole 440, and the aperture of the guide hole 440 is smaller than that of the fixed hole 420, so that on one hand, the movable slider 200 can be foolproof during installation, and on the other hand, the movable slider 200 can be further fixed, so that the movable slider 200 can be prevented from rotating due to different force application points of workers during use, and the use experience of a user is improved.

It should be noted that the top of the movable slider 200 is provided with anti-slip lines, so that the worker can push the movable slider 200 more easily, and the user experience is improved.

Referring to fig. 3, it can be understood that a horizontal channel penetrates through the first and third sidewalls of the extraction aid body 100, the first and third sidewalls are opposite to each other, a third screw 460 and a compression spring 450 are disposed at one end of the horizontal channel close to the third sidewall, one end of the compression spring 450 is connected to the third screw 460, and the other end of the compression spring 450 is connected to the sliding rod 400. When the compression spring 450 is in the original state, the pulling-assisted lever 300 is in the locked state, and at this time, the first stopper 410 is located in the stopper groove 320, when the pulling-aid lever 300 needs to be unlocked, the movable slider 200 is slid from the "ON" position to the "OFF" position, at this time, the compression spring 450 is pressed to be in a compressed state, and at the same time, the first stopper 410 is disengaged from the stopper groove 320, the unlocking of the pulling-assistant rod 300 is completed, after the pulling-assistant rod 300 is rotated, the first limiting block 410 slides in the arc-shaped groove 310, the worker can release the thrust applied to the movable sliding block 200, the first limiting block 410 is kept against the groove bottom of the arc-shaped groove 310 under the action of the compression spring 450 of the movable sliding block 200, when the pulling-assistant rod 300 needs to be locked, the pulling-assistant rod 300 is moved to the original position, namely, when the lever is in a horizontal position, the first stopper 410 is automatically inserted into the stopper groove 320, so as to lock the pulling-aid lever 300.

With continued reference to fig. 3 and fig. 5, it can be understood that the first sidewall of the extraction aid body 100 is further provided with a torsion spring 130, the torsion spring 130 is sleeved on the first screw 120, the extraction aid rod 300 is provided with a receiving groove 330, one end of the torsion spring 130 is placed in the receiving groove 330 and abuts against the receiving groove 330, and the other end of the torsion spring 130 is inserted into the extraction aid body 100. The torsion spring 130 is provided to reset the rotation of the pulling-aid lever 300.

Referring to fig. 2, it can be understood that the bottom of the extraction aid body 100 is provided with a first connection hole 140 away from the second side wall, the first connection hole 140 is used for being connected with a first plate, and the first plate is parallel to the bottom of the extraction aid body 100. The first plate is connected to the first connection hole 140 by screws and is fixed to the first connection hole 140, specifically, in this embodiment, two first connection holes 140 are provided to enhance the stability of the fixing of the sliding unlocking type pulling aid and the first plate, and both ends of the first plate may be respectively provided with at least one sliding unlocking type pulling aid to be more firmly connected to the side wall of the chassis.

With reference to fig. 2, a connecting protrusion 150 is disposed at the bottom of the extraction aid body 100, a second connecting hole 151 is disposed at a side wall of the connecting protrusion 150, the second connecting hole 151 is used for connecting with a second plate, the second plate is perpendicular to the bottom of the extraction aid body 100, and a gap for inserting the first plate is disposed between the bottom of the extraction aid body 100 and the top of the connecting protrusion 150. The second plate body is connected with the second connection hole 151 by a screw, so that the second plate body is fixed on the second connection protrusion 150, when the first positioning pin 510 is connected with the case, the second plate body is located inside the case, a gap exists between the bottom of the first connection protrusion 150 and the top of the second connection protrusion 150, and the first plate body can be inserted into the gap, so that the first plate body is further fixed.

Referring to fig. 3, fig. 7 and fig. 9, it can be understood that a second limiting block 160 is further disposed at the first side wall of the extraction aid body 100, and the second limiting block 160 is used for limiting the rotation position of the extraction aid rod 300, so as to prevent the first limiting block 410 from falling off from the arc-shaped groove 310 due to too large rotation range of the extraction aid rod 300, and thus the locking effect on the extraction aid rod 300 is affected.

Referring to fig. 1 to 3, a second positioning pin 520 is further vertically disposed at the bottom of the extraction aid body 100, the direction of the second positioning pin 520 is the same as that of the first positioning pin 510, and the second positioning pin 520 is used for being inserted into a side wall of the chassis to further position.

In a second aspect, the present application further provides a chassis including the slide unlocking-type extraction aid in any one of the embodiments of the first aspect. The bottom of the sliding unlocking type pulling aid main body is far away from the second side wall and is provided with a first positioning pin 510, the first positioning pin 510 is used for being inserted into the case shell, the movable sliding block 200 can be slidably arranged on the pulling aid main body 100, the movable sliding block 200 is connected with the sliding rod 400, when the movable sliding block 200 slides, the sliding rod 400 can be driven to move, one end of the sliding block is provided with a first limiting block 410, the first limiting block 410 can be exposed from the first side wall, and the first limiting block 410 can be controlled to be exposed and retracted through the sliding movable sliding block 200. When the sliding unlocking type pulling-assistant device needs to be locked, the first limit block 410 is clamped into the limit groove 320 of the pulling-assistant rod 300 by sliding the movable sliding block 200, so that the rotation of the pulling-assistant rod 300 is limited, namely the pulling-assistant rod 300 is locked; when the sliding unlocking type pulling aid is required to be unlocked, the movable sliding block 200 is pushed inwards, the first limiting block 410 is separated from the limiting groove 320 and returns to the arc-shaped groove 310, the pulling aid rod 300 can rotate, one end of the pulling aid rod 300 can abut against the chassis shell through rotation, a worker applies an upward force to the pulling aid rod 300 through the other end, then one end of the pulling aid rod 300 applies a downward force to the chassis shell, the first positioning pin 510 is pulled out of the chassis shell, the pulling aid rod 300 can be locked through the movable sliding block 200, and quick plugging and unplugging can be achieved without depending on tools through rotation of the pulling aid rod 300 and the chassis.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.

Claims (10)

1. A sliding unlocking type extraction aid, comprising:

the pulling aid comprises a pulling aid body, wherein a horizontal channel is arranged in the pulling aid body, one end of the horizontal channel penetrates through a first side wall of the pulling aid body, a first positioning pin is arranged at the position, close to a second side wall of the pulling aid body, of the bottom of the pulling aid body, and the first positioning pin is used for being inserted into a case shell; wherein the first sidewall and the second sidewall are adjacent;

the sliding rod is arranged in the horizontal channel in a sliding mode, a first limiting block is arranged on the sliding rod, and the first limiting block can be exposed out of the first side wall;

the movable sliding block penetrates through the pulling aid body and is connected with the sliding rod, and the movable sliding block is used for driving the sliding rod to move;

the pull-out assisting rod is arranged on the side wall of the pull-out assisting device body in a rotating mode through a first screw, one end of the pull-out assisting rod can be abutted to the case shell through rotation, the pull-out assisting rod is provided with a supply for the first limiting block to slide on the arc-shaped groove, the upper portion of the arc-shaped groove faces the direction of the movable sliding block is provided with a supply for the first limiting block to be clamped into and communicated with the limiting groove of the arc-shaped groove.

2. The sliding unlocking type unplugging assistor according to claim 1, wherein the sliding rod is provided with a fixing hole, and the bottom of the movable sliding block is provided with a fixing column matched with the fixing hole.

3. The sliding unlocking type extraction aid according to claim 2, wherein the fixing column is a hollow structure, threads are arranged inside the fixing column, the fixing column is fixed on the fixing hole through a second screw, and the diameter of a nut of the second screw is larger than the diameter of the hole of the fixing hole.

4. The sliding unlocking type extraction aid according to claim 2, wherein the sliding rod is further provided with a guide hole, and the bottom of the movable sliding block is provided with a guide post matched with the guide hole.

5. The sliding unlocking type extraction aid according to claim 1, wherein the horizontal channel penetrates through the first side wall and the third side wall of the extraction aid body, the first side wall and the third side wall are opposite, a third screw and a compression spring are arranged at one end of the horizontal channel close to the third side wall, one end of the compression spring is connected with the third screw, and the other end of the compression spring is connected with the sliding rod.

6. The sliding unlocking type extraction aid according to claim 1, wherein a torsion spring is further disposed on the first side wall of the extraction aid body, the torsion spring is sleeved on the first screw, the extraction aid rod is provided with a containing groove, one end of the torsion spring is disposed in the containing groove and abuts against the containing groove, and the other end of the torsion spring is inserted into the extraction aid body.

7. The sliding unlocking type extraction aid according to claim 1, wherein a first connecting hole is formed in the bottom of the extraction aid body away from the second side wall, the first connecting hole is used for being connected with a first plate, and the first plate is parallel to the bottom of the extraction aid body.

8. The sliding unlocking type extraction aid according to claim 7, wherein a connecting protrusion is arranged at the bottom of the extraction aid body, a second connecting hole is arranged at the side wall of the connecting protrusion, the second connecting hole is used for being connected with a second plate body, the second plate body is perpendicular to the bottom of the extraction aid body, and a gap for inserting the first plate body is arranged between the bottom of the extraction aid body and the top of the connecting protrusion.

9. The sliding unlocking type extraction aid according to claim 1, wherein a second limiting block is further arranged on the first side wall of the extraction aid body and used for limiting the rotation position of the extraction aid rod.

10. A chassis comprising the slide unlocking type extraction aid according to any one of claims 1 to 9.

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