CN219371544U - Plug auxiliary device applied to communication board card - Google Patents

Abstract

The utility model provides an auxiliary plugging and unplugging device applied to a communication board card, which is characterized in that auxiliary machine frames are arranged at two ends of a clamping groove of a machine case, so that the board card is inserted along guide rails arranged on the auxiliary machine frames, and meanwhile, worm gear mechanisms which are mutually matched are arranged inside the auxiliary machine frames, wherein the worm gear mechanisms are matched with racks arranged on the board card, the worm gear mechanisms are also matched with external power-assisting mechanisms, and the caterpillar tracks in the power-assisting mechanisms rotate to drive the worms in the machine frames at two ends to synchronously rotate so as to drive the racks to move forwards or backwards on the worm gear mechanisms, thereby enabling the board card to be plugged into or unplugged from the clamping groove at a stable speed, avoiding damage to the machine case due to larger plugging and unplugging force, and the racks are arranged at two end side surfaces of the board card, so that the space of a board card panel is basically not occupied, and the space for additionally installing lever-type auxiliary structure is saved.

Description

Plug auxiliary device applied to communication board card

[ field of technology ]

The utility model relates to the field of communication equipment, in particular to a plug auxiliary device applied to a communication board card.

[ background Art ]

With the development of information technology, the capacity of the communication device becomes larger and the speed is required to be faster, at this time, the board card of the device is larger and larger, the number of connectors on the board card is increased, the signal pins of each pair of connectors are more, and the inserting and extracting force of the board card is increased, so that the board card is difficult and inconvenient to insert and extract. Operability and maintainability of board card plug-in are guarantee and value manifestations of equipment suppliers to customers.

The board card plug force is increased, the existing lever type key pulling auxiliary mechanism needs a larger force arm, the larger the force arm is, the larger the occupied board card panel space is, the fewer the service outlets of the panel are, and the ventilation area of the panel is also reduced;

in the face of larger insertion and extraction forces, the lever type power assisting mechanism is an instantaneous process when the board card is assisted to be inserted, can cause larger impact force, can cause impact on the back board side connector, and can possibly lead the connector to fall off or be damaged.

[ utility model ]

The utility model aims to solve the technical problems of avoiding damage to a board or a chassis caused by overlarge insertion and extraction force when the board is connected or separated from a card slot, and reducing ventilation area caused by occupation of the board panel outlet space by a traditional lever type power assisting mechanism.

In order to solve the problems, the utility model adopts the following technical scheme:

in a first aspect, a plug assisting apparatus applied to a communication board card includes: rack 1, auxiliary frame 2 and assist drive 3, wherein:

the racks 1 are arranged at two ends of the board card 4;

the auxiliary machine frame 2 is arranged at two ends of the chassis clamping groove 5, and the board card 4 is inserted into the clamping groove 5 or pulled out of the clamping groove 5 through the auxiliary machine frame 2;

a worm wheel 22 and a worm 23 are arranged in the auxiliary machine frame 2, and the worm wheel 22 and the worm 23 are matched with each other;

the worm wheel 22 extends out from the first side surface of the auxiliary machine frame 2, and when the board card 4 is positioned on the auxiliary machine frame 2, the extending part of the worm wheel 22 is meshed with the rack 1;

the worm 23 extends out of the end face of the auxiliary frame 2;

the booster mechanism 3 comprises a track assembly 32 and two shaft sleeves 31 which are oppositely arranged, the two shaft sleeves 31 are correspondingly connected with the upper end and the lower end of the track assembly 32, the shaft sleeves 31 are correspondingly matched with the worm 23, the shaft sleeves 31 at the upper end and the lower end are driven to synchronously rotate by the track assembly 32 so as to drive the worm 23 to synchronously rotate, the worm 23 drives the worm wheel 22 to rotate, and the worm wheel 22 drives the rack 1 to move towards a direction approaching or separating from the clamping groove 5 so as to insert or extract the board card 4 into or out of the clamping groove 5;

the first side face is one face of the auxiliary machine frame facing the clamping groove.

Preferably, the auxiliary frame 2 is internally provided with a worm wheel 22 and a worm 23, and specifically includes:

the first side surface of the auxiliary frame 2 is provided with a first bearing seat 24, and the worm wheel 22 is axially connected with the first bearing seat 24.

Preferably, the first side of the auxiliary frame 2 is provided with a through slot, and the through slot is linear and is located below the first bearing seat 24 of the worm wheel 22, so that the worm wheel 22 extends out through the through slot and is meshed with the rack 1 after the board card 4 is inserted into the auxiliary frame 2.

Preferably, the auxiliary frame 2 is internally provided with a worm wheel 22 and a worm 23, and further includes:

a second bearing seat 25 and a third bearing seat 26 are arranged on the inner wall of the second side surface of the auxiliary frame 2, the second bearing seat 25 and the third bearing seat 26 are positioned above the worm wheel 22, one end of the worm 23 is inserted into the second bearing seat 25, and the other end is inserted into the third bearing seat 26 so as to be matched with the worm wheel 22;

the second side surface is the surface of the auxiliary machine frame 2, which faces away from the clamping groove.

Preferably, the worm 23 extends from the end face of the auxiliary frame 2, and specifically includes:

the end face of the auxiliary machine frame 2 is provided with a first through hole, the first through hole corresponds to the worm 23 in position, and the worm 23 extends out of the end face of the auxiliary machine frame 2 from the first through hole.

Preferably, the booster mechanism 3 further comprises a housing 33, wherein:

the track assembly 32 is disposed inside the housing 33, the upper and lower ends of the third side surface of the housing 33 are provided with second through holes, and the shaft sleeve 31 is inserted into the second through holes to be abutted with the track assembly 32;

the third side surface is one side end surface of the power assisting mechanism 3 facing the board card 4.

Preferably, the track assembly 32 includes: belt 321, action wheel 322, follow driving wheel 323 and motor 324, wherein:

the driven wheels 323 are arranged at two ends of the inside of the shell 33, correspond to the second through holes and are connected with the shaft sleeve 31;

the belt 321 is arranged around the periphery of the driven wheels 323 at the upper end and the lower end;

the driving wheel 322 is disposed in the middle of the casing 33 and is connected to the belt 321, the motor 324 is connected to the driving wheel 322, the motor 324 drives the driving wheel 322 to rotate, the driving wheel 322 drives the driven wheels 323 at the upper end and the lower end to synchronously rotate through the belt 321, and the driven wheels 323 at the upper end and the lower end correspondingly drive the shaft sleeves 31 at the upper end and the lower end to synchronously rotate.

Preferably, a third side surface of the housing 33 is provided with a limiting post 34, and the limiting post 34 is used for abutting the board 4 after the board 4 is pulled out from the card slot 5.

Preferably, a handle 35 is provided on the fourth side of the housing 33;

the fourth side surface is the end surface of one side of the power assisting mechanism 3, which is back to the board card 4.

Preferably, the rack 1 is disposed at two ends of the board card 4, and specifically includes:

the rack 1 is provided with a first screw hole, and corresponds to a second screw hole formed at two ends of the board card 4, and the first screw hole is matched with the second screw hole and is fixed by a screw, so that the rack 1 is fixed at two ends of the board card 4.

The utility model provides an auxiliary plugging and unplugging device applied to a communication board card, which is characterized in that auxiliary machine frames are arranged at two ends of a clamping groove of a machine case, so that the board card is inserted along guide rails arranged on the auxiliary machine frames, and meanwhile, worm gear mechanisms which are mutually matched are arranged inside the auxiliary machine frames, wherein the worm gear mechanisms are matched with racks arranged on the board card, the worm gear mechanisms are also matched with external power-assisting mechanisms, and the caterpillar tracks in the power-assisting mechanisms rotate to drive the worms in the machine frames at two ends to synchronously rotate so as to drive the racks to move forwards or backwards on the worm gear mechanisms, thereby enabling the board card to be plugged into or unplugged from the clamping groove at a stable speed, avoiding damage to the machine case due to larger plugging and unplugging force, and the racks are arranged at two end side surfaces of the board card, so that the space of a board card panel is basically not occupied, and the space for additionally installing lever-type auxiliary structure is saved.

[ description of the drawings ]

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments of the present utility model will be briefly described below. It is evident that the drawings described below are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a board card applied to a plug-in auxiliary device of a communication board card according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a plug-in auxiliary device applied to a communication board card, in which an upper auxiliary frame part of a shell is removed;

fig. 3 is a schematic structural diagram of an auxiliary device for plugging and unplugging a communication board card according to an embodiment of the present utility model, after the board card is plugged into a card slot, and the auxiliary device does not include a booster mechanism;

fig. 4 is a schematic diagram of a partial structure of a worm wheel, a worm and a booster mechanism of a plug-in auxiliary device applied to a communication board card according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a portion of a plug assist device for a communication board according to an embodiment of the present utility model, in which a worm gear and a rack are engaged after a first side of an auxiliary frame is removed;

FIG. 6 is a schematic view of a portion of another insertion/removal assist apparatus for a communication board according to an embodiment of the present utility model, in which a worm gear and a rack are engaged after a first side of an assist frame is removed;

FIG. 7 is a schematic view of a portion of a worm gear and rack engaged after removing a first side of an auxiliary frame of a plug-in auxiliary device for a communication board according to an embodiment of the present utility model;

fig. 8 is a schematic partial view of a worm wheel and a worm applied to a plug assist device of a communication board according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of a power assisting mechanism applied to a plugging auxiliary device of a communication board card according to an embodiment of the present utility model;

fig. 10 is a schematic structural diagram of an assist mechanism of another plugging assist device applied to a communication board according to an embodiment of the present utility model;

the reference numerals correspond to the following:

a rack 1; an auxiliary frame 2; a booster mechanism 3; a board 4; a clamping groove 5; a worm wheel 22; a worm 23; a first bearing housing 24; a second bearing seat 25; a third bearing seat 26; a sleeve 31; track assembly 32; a housing 33; a belt 321; a drive wheel 322; driven wheel 323; a motor 324; a limit post 34; a handle 35.

[ detailed description ] of the utility model

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1:

the embodiment 1 of the utility model provides a plug auxiliary device applied to a communication board card;

as shown in fig. 1-3, comprising: rack 1, auxiliary frame 2 and assist drive 3, wherein:

the racks 1 are arranged at two ends of the board card 4; in an alternative embodiment, the rack 1 is provided with a first screw hole, and corresponds to a second screw hole formed at two ends of the board card 4, and the rack 1 is fixed at two ends of the board card 4 by matching a screw with the screw hole.

As shown in fig. 3, the auxiliary frames 2 are disposed at two ends of the card slot 5, and the board card 4 is inserted into the card slot 5 or pulled out from the card slot 5 through the auxiliary frames 2; in order to show the specific structure of the card slot 5, fig. 3 separates a part of the board card 4 from the auxiliary frame 2, and in normal use, the auxiliary frame 2 is disposed on two sides of the card slot 5, and the auxiliary frame 2 is used for assisting in extracting the board card 4 or inserting the board card.

The first side surface of the auxiliary frame 2 is further provided with a guide rail, along which the board card 4 can move, specifically, the board card 4 can be moved along the guide rail in a direction approaching the card slot 5, so as to insert the connector in the board card 4 into the card slot 5, or the board card 4 can be moved along the guide rail in a direction separating from the card slot 5, so as to separate the connector in the board card 4 from the card slot 5; the first side face is one face of the auxiliary machine frame facing the clamping groove.

In this embodiment, the auxiliary frames 2 are in a rectangular box shape, at least two auxiliary frames 2 are disposed on two sides of the chassis in a manner of welding or screw connection, the clamping groove 5 is located between the two auxiliary frames 2, one auxiliary frame 2 is located on one side of the clamping groove 5, the other auxiliary frame 2 is located on the other side of the clamping groove 5, and the two auxiliary frames 2 are parallel to each other.

As shown in fig. 4, a worm wheel 22 and a worm 23 are disposed inside the auxiliary frame 2, and the worm wheel 22 and the worm 23 are mutually matched. The worm wheel 22 and the worm 23 being fitted to each other means that the toothed portion of the worm wheel 22 and the toothed portion of the worm 23 are engaged with each other.

As shown in fig. 5, the worm wheel 22 protrudes from the first side of the auxiliary frame 2, and the protruding portion of the worm wheel 22 is engaged with the rack 1 after the card 4 is inserted into the auxiliary frame 2 along the guide rail.

As shown in fig. 5, the auxiliary frame 2 has its first side removed, and the matching structure between the worm wheel 22 and the rack 1 is shown; the part of the worm wheel 22 extending out of the auxiliary frame 2 is the tooth line part of the worm wheel 22; the worm wheel 22 cooperating with the rack 1 means that the toothed portion of the worm wheel 22 intermeshes with the toothing on the rack 1.

Further, the worm 23 extends out from the end face of the auxiliary frame 2; the extending part of the worm 23 is a rotation rod part of the worm 23, and is used for receiving external rotation force to rotate the worm 23, thereby driving the worm wheel 22 to rotate and enabling the rack 1 to move on the worm wheel 22.

Since the board 4 needs to be stressed at both ends simultaneously to move stably, the worms 23 arranged at the upper and lower ends need to rotate synchronously at the same speed, and if the worms are rotated manually, the speed is hard to be stable and consistent, so the embodiment provides the power assisting mechanism 3, and the power assisting mechanism 3 is in butt joint with the worms 23 at the upper and lower ends simultaneously and rotates synchronously at the same speed, so that both ends of the board 4 are moved synchronously.

With continued reference to fig. 4, the booster mechanism 3 includes two shaft sleeves 31 and a track assembly 32 that are disposed opposite to each other, the two shaft sleeves 31 are correspondingly connected to the upper and lower ends of the track assembly 32, the shaft sleeves 31 are correspondingly matched with the worm 23, the shaft sleeves 31 at the upper and lower ends are driven to synchronously rotate by the track assembly 32, so as to drive the worm 23 to synchronously rotate, the worm 23 drives the worm wheel 22 to rotate, and the worm wheel 22 drives the rack 1 to move in a direction approaching or separating from the clamping groove 5, so that the board card 4 is inserted into or pulled out of the clamping groove 5.

Wherein, the shaft sleeve 31 is a hollow cylinder, and the hollow part inside the shaft sleeve 31 is identical to the rod-shaped part of the worm 23 in shape, and is used for adapting to the rod-shaped part of the worm 23, and after the worm 23 is inserted into the shaft sleeve 31, the worm 23 and the shaft sleeve 31 synchronously rotate when the shaft sleeve 31 is rotated.

In order to more clearly explain how the rack 1 is driven to move by the auxiliary frame 2, the following description is made with reference to fig. 6 and 7, wherein fig. 6 is an initial state corresponding to the insertion, and fig. 7 is an intermediate state corresponding to the insertion.

When the board card 4 needs to be inserted into the card slot 5, the worm 23 is driven to rotate clockwise (arrow direction shown in fig. 6) by the power assisting mechanism 3, the worm 23 drives the worm wheel 22 to rotate anticlockwise (arrow direction shown in fig. 6), the rack 1 is driven to move rightwards (arrow direction shown in fig. 6) in the rotating process of the worm wheel 22, and the worm wheel 22 moves to the middle position of the rack 1 relative to the rack 1 until the board card 4 is inserted into the card slot 5 as shown in fig. 7.

Correspondingly, when the board card 4 is required to be pulled out of the clamping groove 5, the worm 23 is driven to rotate anticlockwise through the power assisting mechanism 3, the worm 23 drives the worm wheel 22 to rotate clockwise, and in the process of rotating the worm wheel 22, the rack 1 is driven to move leftwards, so that the board card 4 is pulled out of the clamping groove 5.

In the prior art, when the backboard and the board card 4 are in butt joint on the chassis, the connectors of the clamping grooves 5 are more and more, the force required for inserting or extracting the board card 4 into or from the clamping grooves 5 is larger and larger, the existing lever-type key pulling auxiliary structure is required to be larger in force arm, the larger the force arm is, the larger the occupied board card 4 panel space is, the smaller the service outlet of the panel is, the ventilation area of the panel is reduced, the larger inserting and extracting force is faced, the lever-type auxiliary structure is an instantaneous process when helping the board card 4 to be inserted, the larger impact force is caused, the impact is caused on the backboard-side connector, and the connector is likely to fall off or be damaged.

In the prior art, lever mechanisms are usually arranged on two sides of the board card 4 to assist the board card 4 to be inserted into the card slot 5, and the lever mechanisms generally occupy a large amount of space on the board card 4 panel to affect the overall space layout, so that the service outlet of the chassis is reduced, and the ventilation area on the chassis panel is also reduced.

The embodiment provides a be applied to plug auxiliary device of communication integrated circuit board, through set up supplementary frame 2 at the draw-in groove 5 both ends of quick-witted case, let integrated circuit board 4 insert along the guide rail that sets up on supplementary frame 2, supplementary frame 2 is inside to be provided with worm wheel 22 and worm 23 mutually supporting simultaneously, wherein worm wheel 22 cooperatees with rack 1 that sets up on integrated circuit board 4 again, worm 23 cooperatees with outside assist unit 3, the track rotation in assist unit 3 drives the worm 23 synchronous rotation in both ends frame, drive rack 1 and advance or retreat on worm wheel 22 mechanism, thereby make integrated circuit board 4 insert or pull out draw-in groove 5 with stable speed, the space of extra installation lever auxiliary structure has been saved, and the damage of great plug-in force to the quick-witted case has been avoided.

Further, the racks are arranged on the side face of the board card, so that the space of the panel of the board card is not occupied basically, and the space for additionally installing the lever type auxiliary structure is saved.

Considering that the worm wheel 22 and the worm 23 need to be fitted to each other in the auxiliary frame 2, the gear portion of the worm wheel 22 needs to protrude from the auxiliary frame 2 toward the side of the card slot 5, and the worm 23 needs to protrude from the end face of the auxiliary frame 2, the present embodiment involves the following preferred design:

as shown in fig. 8, the auxiliary frame 2 is provided with a worm wheel 22 and a worm 23, and specifically includes:

the first side surface of the auxiliary frame 2 is provided with a first bearing seat 24, and the worm wheel 22 is axially connected with the first bearing seat 24.

The first side of the auxiliary frame 2 is provided with a through groove, and the through groove is in a straight line shape and is positioned below the first bearing seat 24 of the worm wheel 22, so that the worm wheel 22 extends out through the through groove and is meshed with the rack 1 after the board card 4 is inserted into the auxiliary frame 2.

The first bearing seat 24 includes two circular shaft holes, the lower end of the circular shaft hole is provided with a screw hole, the screw hole corresponds to the screw hole on the first side of the auxiliary frame 2, the two circular shaft holes are respectively fixed on two sides of the through groove through screws, the through groove is ensured to be positioned between the two circular shaft holes, and the worm wheel 22 just stretches out from the through groove after the worm wheel 22 is connected to the two circular shaft holes.

Since the movement direction of the rack 1 is consistent with the movement direction of the board card 4 when the board card 4 is inserted into the card slot 5, the direction of the worm wheel 22 is consistent with the movement direction of the board card 4, the direction of the through slot is the direction of the worm wheel 22, and the direction of the guide rail is the movement direction of the board card 4, so that the through slot is parallel to the guide rail.

As shown in fig. 8, a second bearing seat 25 and a third bearing seat 26 are disposed on the inner wall of the second side surface of the auxiliary frame 2, and the second bearing seat 25 and the third bearing seat 26 are located above the worm wheel 22, and one end of the worm 23 is inserted into the second bearing seat 25, and the other end is inserted into the third bearing seat 26, so as to be matched with the worm wheel 22.

The second side surface is the surface of the auxiliary machine frame 2, which faces away from the clamping groove.

The worm 23 extends out from the end face of the auxiliary frame 2, and specifically includes:

the end face of the auxiliary machine frame 2 is provided with a first through hole, the first through hole corresponds to the worm 23 in position, and the worm 23 extends out of the end face of the auxiliary machine frame 2 from the first through hole.

The second bearing seat 25 and the third bearing seat 26 both comprise two circular shaft holes, the lower ends of the circular shaft holes are provided with screw holes, the screw holes correspond to the screw holes on the second side surface of the auxiliary machine frame 2, the two circular shaft holes are fixed inside the auxiliary machine frame 2 through screws, one circular shaft hole is sleeved from the rotating rod part of the worm 23, the other circular shaft hole is sleeved from one threaded end of the worm 23, the toothed part is ensured to be positioned between the two circular shaft holes, and the toothed part is correspondingly matched with the worm wheel 22 below.

When the board card 4 is inserted into the rack 1 to contact with the worm wheel 22, the board card 4 is not contacted with the clamping groove 5, and the worm wheel 22 cannot drive the worm 23 reversely, so that the forward pushing of the board card 4 is blocked, and the worm wheel 22 is driven to drive by the rotation of the worm 23 to drive the rack 1 so as to enable the board card 4 to be inserted forwards.

Conditions for self-locking worm wheel 22 and worm 23:

the helix angle of the worm 23 is < the equivalent friction angle between the teeth of the worm wheel 22 and the worm 23.

Considering that a plurality of clamping grooves 5 are generally arranged on the chassis in parallel, a plurality of groups of worm gear and worm assemblies (namely, worm gears 22 and worms 24 in fig. 4) are arranged in the auxiliary frame 2 side by side, the number of the worm gear and worm assemblies is identical to that of the clamping grooves 5 on the chassis, the interval between adjacent worm gear and worm assemblies is the interval between adjacent clamping grooves 5 on the chassis, the worm gear and worm assemblies on the same vertical direction in the auxiliary frame 2 at the upper end and the lower end are in one group, and are used for being matched with the plate cards 4 to be inserted into the clamping grooves 5 at corresponding positions.

As shown in fig. 9 and 10, the assist mechanism 3 further includes a housing 33, in which:

the track assembly 32 is disposed inside the housing 33, second through holes are formed at the upper and lower ends of the third side surface of the housing 33, and the shaft sleeve 31 is inserted into the second through holes to be abutted with the track assembly 32.

The third side surface is one side end surface of the power assisting mechanism 3 facing the board card 4.

The track assembly 32 includes: belt 321, action wheel 322, follow driving wheel 323 and motor 324, wherein:

the driven wheel 323 is disposed at two ends of the inner portion of the housing 33, and corresponds to the second through hole, and is connected to the shaft sleeve 31.

The belt 321 is disposed around the outer periphery of the driven wheels 323 at the upper and lower ends.

The driving wheel 322 is disposed in the middle of the casing 33 and is connected to the belt 321, the motor 324 is connected to the driving wheel 322, the motor 324 drives the driving wheel 322 to rotate, the driving wheel 322 drives the driven wheels 323 at the upper end and the lower end to synchronously rotate through the belt 321, and the driven wheels 323 at the upper end and the lower end correspondingly drive the shaft sleeves 31 at the upper end and the lower end to synchronously rotate.

The assist mechanism 3 is held by an external force and is used to manually interface the boss 31 with the worm 23.

The shell 33 is also provided with a power supply, and the power supply is connected with the motor 324 and used for controlling the motor 324 to be turned on or off; when the motor 324 is started, the driving wheel 322 is driven to rotate, the driving wheel 322 drives the belt 321 to rotate, the belt 321 drives the driven wheels 323 at the upper end and the lower end to rotate, synchronous rotation of the driven wheels 323 is achieved, the driven wheels 323 at the upper end and the lower end correspondingly drive the shaft sleeves 31 at the upper end and the lower end to synchronously rotate, the worm 23 is driven to rotate, the worm 23 rotates to drive the worm wheel 22 to rotate, and therefore the rack 1 is driven to move along the guide track.

Specifically, the plugging function can be realized by controlling the rotation direction of the motor 324, and controlling the movement direction of the card 4.

In this embodiment, the motor 324 sets a fixed output force, which is a safety factor for the insertion force of the board 4, and after the board 4 is inserted, the power is turned off, and the board 4 is completely inserted into the card slot 5, so that the board 4 cannot retract.

Wherein, the insertion force of the board card 4 is the number of connectors in the card slot 5;

in the embodiment, the safety coefficient is 1.1-1.3; the transmission ratio of the worm wheel 22 and the worm 23 is the number of teeth of the worm wheel 22 divided by the number of heads of the worm 23, the transmission ratio is 10-80, and the maximum can reach 1000; the transmission efficiency of the worm wheel and worm 23 with self-locking performance is below 0.5.

Considering that when the board 4 is withdrawn from the card slot 5, the timing of withdrawal of the board 4 from the card slot 5 needs to be known, so that the power supply is stopped, the present embodiment also relates to the following design:

a third side surface of the housing 33 is provided with a limiting column 34, and the limiting column 34 is used for abutting the board card 4 after the board card 4 is pulled out of the clamping groove 5.

A handle 35 is provided on the fourth side of the housing 33; the fourth side surface is the end surface of one side of the power assisting mechanism 3, which is back to the board card 4.

When the board card 4 is abutted against the limit column 34, the board card 4 is represented to be separated from the clamping groove 5; the handle 35 allows the user to apply better force to lift the booster mechanism 3 and interface with the worm 23 during actual operation.

The plugging auxiliary device applied to the communication board card of the embodiment has at least the following advantages:

(1) Labor saving, the motor is used for driving the output moment, and the manual power is not needed for implementing the plugging.

(2) The fixed moment output can prevent the situation that the plug is not in place due to too small force of manual operation.

(3) The worm and gear transmission structure can realize slow insertion of the board card and avoid the influence of instant impact on the connector when the lever type spanner key is applied to force insertion.

(4) The space of the panel of the board is not occupied, the outlet position of the panel is increased, and the ventilation area of the panel is increased.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a be applied to plug auxiliary device of communication board card which characterized in that includes: rack (1), auxiliary frame (2) and power assisting mechanism (3), wherein:

the racks (1) are arranged on the side surfaces of two ends of the board card (4);

the auxiliary machine frame (2) is arranged at two ends of the chassis clamping groove (5), and the board card (4) is inserted into the clamping groove (5) or pulled out of the clamping groove (5) through the auxiliary machine frame (2);

a worm wheel (22) and a worm (23) are arranged in the auxiliary machine frame (2), and the worm wheel (22) and the worm (23) are matched with each other;

the worm wheel (22) extends out of the first side surface of the auxiliary machine frame (2), and when the board card (4) is positioned on the auxiliary machine frame (2), the extending part of the worm wheel (22) is meshed with the rack (1);

the worm (23) extends out of the end face of the auxiliary frame (2);

the power assisting mechanism (3) comprises a crawler assembly (32) and two shaft sleeves (31) which are oppositely arranged, the two shaft sleeves (31) are correspondingly connected with the upper end and the lower end of the crawler assembly (32), the shaft sleeves (31) are correspondingly matched with the worm (23), the shaft sleeves (31) at the upper end and the lower end are driven to synchronously rotate by the crawler assembly (32), so that the worm (23) is driven to synchronously rotate, the worm (23) drives the worm wheel (22) to rotate, and the worm wheel (22) drives the rack (1) to move towards a direction close to or far away from the clamping groove (5) so as to insert or pull the board card (4) out of the clamping groove (5);

the first side face is one face of the auxiliary machine frame facing the clamping groove.

2. The plugging auxiliary device applied to the communication board card according to claim 1, wherein a worm wheel (22) and a worm (23) are arranged inside the auxiliary frame (2), and specifically comprises:

the first side of the auxiliary frame (2) is provided with a first bearing seat (24), and the worm wheel (22) is connected with the first bearing seat (24) in a shaft mode.

3. The plugging auxiliary device for the communication board card according to claim 2, wherein the first side surface of the auxiliary frame (2) is provided with a through groove, the through groove is in a straight line shape and is positioned below the first bearing seat (24) of the worm wheel (22), so that the worm wheel (22) extends out through the through groove and is meshed with the rack (1) after the board card (4) is inserted into the auxiliary frame (2).

4. The plugging auxiliary device applied to the communication board card according to claim 2, wherein the auxiliary frame (2) is internally provided with a worm wheel (22) and a worm (23), further comprising:

a second bearing seat (25) and a third bearing seat (26) are arranged on the inner wall of the second side surface of the auxiliary machine frame (2), the second bearing seat (25) and the third bearing seat (26) are positioned above the worm wheel (22), one end of the worm (23) is inserted into the second bearing seat (25), and the other end of the worm is inserted into the third bearing seat (26) so as to be matched with the worm wheel (22);

the second side face is the side, back to the clamping groove, of the auxiliary machine frame (2).

5. The plugging auxiliary device applied to the communication board card according to claim 4, wherein the worm (23) extends out from the end face of the auxiliary frame (2), and specifically comprises:

the end face of the auxiliary machine frame (2) is provided with a first through hole, the first through hole corresponds to the worm (23), and the worm (23) extends out of the end face of the auxiliary machine frame (2) from the first through hole.

6. The plug assist device for a communication board according to claim 1, wherein the booster mechanism (3) further comprises a housing (33), wherein:

the crawler belt assembly (32) is arranged in the shell (33), second through holes are formed in the upper end and the lower end of the third side surface of the shell (33), and the shaft sleeve (31) is inserted into the second through holes to be in butt joint with the crawler belt assembly (32);

the third side face is the end face of the power assisting mechanism (3) facing the board card (4).

7. The insertion and extraction aid for a communication board according to claim 6, wherein the track assembly (32) comprises: belt (321), action wheel (322), follow driving wheel (323) and motor (324), wherein:

the driven wheel (323) is arranged at two ends of the inner part of the shell (33), corresponds to the second through hole and is connected with the shaft sleeve (31);

the belt (321) is arranged around the periphery of driven wheels (323) at the upper end and the lower end;

the driving wheel (322) is arranged in the middle of the inside of the shell (33) and is connected with the belt (321), the motor (324) is connected with the driving wheel (322), the motor (324) drives the driving wheel (322) to rotate, the driving wheel (322) drives the driven wheels (323) at the upper end and the lower end to synchronously rotate through the belt (321), and the driven wheels (323) at the upper end and the lower end correspondingly drive the shaft sleeves (31) at the upper end and the lower end to synchronously rotate.

8. The plugging auxiliary device applied to the communication board card according to claim 6, wherein a limiting column (34) is arranged on the third side surface of the housing (33), and the limiting column (34) is used for abutting the board card (4) after the board card (4) is pulled out of the clamping groove (5).

9. The plug assist device for a communication board according to claim 8, wherein a handle (35) is provided on a fourth side of the housing (33);

the fourth side face is the end face of one side of the power assisting mechanism (3) back to the board card (4).

10. The plugging auxiliary device applied to the communication board card according to claim 1, wherein the rack (1) is disposed at two ends of the board card (4), and specifically comprises:

the rack (1) is provided with a first screw hole, the first screw hole corresponds to a second screw hole formed in two ends of the board card (4), the first screw hole is matched with the second screw hole and is fixed through a screw, and the rack (1) is fixed to two ends of the board card (4).