CN215008892U - Pulling aid and board card with same - Google Patents

Abstract

The utility model relates to a help and pull out ware relates to a integrated circuit board with help and pull out ware simultaneously. The pull-out aid comprises a handle, one end of the handle is provided with a U-shaped clamping hook, and the end of the handle provided with the U-shaped clamping hook is also provided with a mounting round hole for forming rotary connection with a board card; the pulling aid also comprises a lock pin fixedly connected with the board card, the lock pin comprises a connecting column and a locking protrusion positioned at the end part of the connecting column, the handle is provided with a self-locking buckle at the end far away from the U-shaped clamping hook, a sliding groove is formed in the body of the handle, the self-locking buckle is arranged in the sliding groove in a sliding connection mode, a lock pin avoiding hole is formed in the self-locking buckle, the shape and the size of the lock pin avoiding hole can be used for the locking protrusion of the lock pin to pass through, and the axis direction of the lock pin avoiding hole is matched with the rotation direction of the U-shaped clamping hook during working. The utility model discloses a design self-locking mechanism on helping the puller, can solve under the heavy load condition help the puller appear the problem of warping or the dead phenomenon of card easily.

Description

Pulling aid and board card with same

Technical Field

The utility model relates to a help and pull out ware relates to a integrated circuit board with help and pulls out ware simultaneously, is applicable to the equipment of taking the plug integrated circuit board in data communication field, belongs to the help of the plug integrated circuit board of rack-mounted equipment and pulls out ware technical field.

Background

Communication devices are increasingly developing into high capacity, high density, especially plug-in card core high-end rack devices. The number of the connectors on the board card is more and more, and the contact pins of each connector are more and more dense. Therefore, the force required for plugging and unplugging the board card is increased; at the same time, reliability requirements are also increasing.

As a key mechanism for plugging and unplugging the board card or the module, the pulling aid needs to meet the requirements of structural strength, reliability and convenience in operation under a heavy load background.

Taking patent document with publication number CN206302663U as an example, the currently popular pulling aid is fixed by a rotating shaft with two steps and the bottom of a supporting plate of a board card through a riveting process. The existing extraction aid has the following defects: firstly, the machine case is in single-stress point contact with the machine case, and the stress part of the machine case is easy to damage under the heavy load condition; secondly, the pulling-out aid is arranged on the board card through a single rotating shaft, and the single rotating shaft is easily damaged and fails under the stress under the heavy load condition; thirdly, the operating handle of the pulling aid tightens hands under the heavy load condition, and the man-machine operation feeling is not good; and fourthly, a self-locking structure is lacked, the operation is not suitable for being carried out under the heavy load condition, and the insertion and the extraction are influenced by the resilience resistance of the connector.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first technical problem that will solve is: provides a pulling aid with a self-locking mechanism to solve the problem that the pulling aid is easy to deform or block under heavy load.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the pull-out aid comprises a handle, wherein one end of the handle is provided with a U-shaped clamping hook, one end of the U-shaped clamping hook is a pull-out point, the other end of the U-shaped clamping hook is an insertion point, and the end of the handle provided with the U-shaped clamping hook is also provided with a mounting round hole or a rotating shaft which is used for being in rotary connection with a board card; the pulling aid also comprises a lock pin fixedly connected with the board card, the lock pin comprises a connecting column and a locking protrusion positioned at the end part of the connecting column, the handle is provided with a self-locking buckle at the end far away from the U-shaped clamping hook, a sliding groove is formed in the body of the handle, the self-locking buckle is arranged in the sliding groove in a sliding connection mode, a lock pin avoiding hole is formed in the self-locking buckle, the shape and the size of the lock pin avoiding hole can be used for the locking protrusion of the lock pin to pass through, and the axis direction of the lock pin avoiding hole is matched with the rotation direction of the U-shaped clamping hook during working.

Further, the method comprises the following steps: the side wall of the sliding groove is provided with a limiting clamping hole, the length direction of the limiting clamping hole is consistent with the sliding direction of the self-locking buckle, and a clamping block inserted into the limiting clamping hole is arranged on the side face of the self-locking buckle.

Further, the method comprises the following steps: the spout sets up along the length direction of handle, and the one end of spout runs through to the outer terminal surface of handle, and the both sides of auto-lock buckle are provided with the elastic connection arm, and the elastic connection arm of both sides is provided with the fixture block respectively in the tip position.

Further, the method comprises the following steps: the edge of one side of the lock pin avoiding hole is provided with a clamping notch, a connecting line formed by the center of the clamping notch and the center of the lock pin avoiding hole is consistent with the sliding direction of the self-locking buckle, the edge of the clamping notch is provided with a first driving surface, the locking bulge is provided with a second driving surface matched with the first driving surface, and the self-locking buckle can be driven to slide along the sliding chute through the matching of the first driving surface and the second driving surface; be provided with reset spring on the auto-lock buckle, reset spring's axis is unanimous with the slip direction of auto-lock buckle, and reset spring one end is connected with the auto-lock buckle, and the other end is connected with the tip of spout.

Further, the method comprises the following steps: the middle part of the connecting column of the lock pin is provided with a positioning bulge, one end of the connecting column, which is far away from the locking bulge, is provided with a threaded rod, and the threaded rod is provided with a fixing nut.

Further, the method comprises the following steps: the handle is provided with an upper support arm and a lower support arm at the end provided with the U-shaped clamping hook, the upper support arm and the lower support arm are respectively provided with the U-shaped clamping hook, and the upper support arm and the lower support arm are respectively provided with a mounting round hole or a rotating shaft which is used for being rotatably connected with the board card.

Further, the method comprises the following steps: the handle is provided with the installation round hole that is used for forming to rotate with the integrated circuit board and is connected at this one end that is provided with the U-shaped trip, and the installation round hole has set the pivot, and the one end of pivot has spacing end, and the internal thread hole that sets up along its axis is seted up at the terminal surface position to one end in addition, and the internal thread hole has set jam screw.

Further, the method comprises the following steps: the handle is flat, and the width direction of the handle is consistent with the axial direction of the mounting round hole or the rotating shaft at the end part of the handle; the handle is provided with a ventilation lightening hole which penetrates through the handle along the thickness direction of the handle.

Correspondingly, the utility model also provides a board card with the above-mentioned pulling aid, including pulling aid and board card, the pulling aid is connected with the board card in a rotating way, the lock pin is fixedly connected with the board card; when the handle is provided with the upper support arm and the lower support arm at the end provided with the U-shaped clamping hook, the upper support arm is rotationally connected with the panel of the board card, and the lower support arm is rotationally connected with the supporting plate of the board card.

Further, the method comprises the following steps: a limiting pin is fixedly arranged on a supporting plate of the board card, and the limiting pin is arranged on the rotation stroke of the U-shaped clamping hook and used for limiting the outward rotating and stretching limit position of the handle; the spacer pin comprises a connecting rod with a fixed end, an external thread is arranged at one end, far away from the fixed end, of the connecting rod, and the spacer pin is locked and fixed through a nut after passing through a mounting hole in the supporting plate of the board card.

The utility model has the advantages that: when the handle is operated, the handle rotates by taking the axis of the rotating shaft at the end part as the axis. The handle rotates inwards to be closed, so that the board card is inserted into the case; the handle is outwards rotated and opened, so that the board card is pulled out of the case. The utility model discloses there is the auto-lock buckle in the inside design of handle, and when the handle inwards rotated to specific position, the lockpin on auto-lock buckle and the integrated circuit board cooperateed, locks the position of handle, and at this moment the handle can not free rotation to lock the relative position between integrated circuit board and the quick-witted case. The unlocking can be realized through the sliding operation of the automatic buckle, and the handle can be normally rotated after the unlocking. The utility model discloses a self-locking mechanism has realized reliable, the convenient auto-lock of communication plug-in card equipment to can support the heavy load operation of integrated circuit board under the high density connector condition. In addition, the utility model is also designed with a double-rotating shaft structure, which can realize reliable plugging stress and meet the high strength requirement of heavy load; the operation is easy and direct under the heavy load condition, and reliable plugging is realized. The handle adopts the flat molding, and the area of stress of staff increases when the plug is operated, can promote the operation impression. The main structural parts of the utility model can be integrally formed by a mould; the other parts are made of standard fasteners and simple and direct mechanisms, so that the processing and assembling difficulty is reduced; all structural parts are suitable for batch manufacturing, and the product quality can be ensured and the production cost can be reduced by adopting die forming and standard part processes. The utility model is suitable for a high density, the plug-in card electronic equipment of large capacity, including communication equipment, the plug-in card equipment of quadrature class especially possesses higher commonality. As above, the utility model discloses have positive practical meaning and using value in the communication product.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an exploded structure of the pull-out aid of the present invention;

FIG. 3 is a schematic perspective view of the self-locking mechanism of the middle pull-out aid of the present invention;

fig. 4 is a schematic diagram of a half-section three-dimensional structure of the self-locking mechanism of the middle pull-out aid of the present invention.

The labels in the figure are: 1-handle, 2-U-shaped hook, 3-lock pin, 31-locking protrusion, 32-fixing nut, 4-self-locking buckle, 5-lock pin avoidance hole, 6-limiting clamp hole, 7-clamping block, 8-elastic connecting arm, 9-reset spring, 10-anti-loose screw, 11-panel of plate clamp, 12-plate clamp supporting plate, 13-ventilation lightening hole, 14-limiting pin, 15-nut, 16-clamping notch, 17-upper rotating shaft, 18-lower rotating shaft, 19-spring gasket, 20-spring mounting column and 21-sliding groove.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As shown in fig. 1 to 4, the pulling aid of the present invention comprises a handle 1, one end of the handle 1 is provided with a U-shaped hook 2, one end of the U-shaped hook 2 is a pulling point, the other end is an inserting point, and the handle 1 is provided with a mounting round hole or a rotating shaft for rotating with a board card at the end provided with the U-shaped hook 2. The working principle of the extraction aid can be seen in patent document No. CN206302663U, and the handle 1 is rotated around the axis of the rotation shaft at the end of the handle. The handle 1 is rotated inwards to be closed, so that the board card is inserted into the case; the handle 1 is rotated outwards and opened, so that the board card is pulled out of the case.

The utility model provides a help and pull out ware is still including being used for lockpin 3 with integrated circuit board fixed connection, lockpin 3 includes the spliced pole and is located the protruding 31 of locking of spliced pole tip, this one end of keeping away from U-shaped trip 2 of handle 1 is provided with auto-lock buckle 4, be provided with spout 21 on the body of handle 1, auto-lock buckle 4 sets up in spout 21 with sliding connection, be provided with the lockpin on the auto-lock buckle 4 and dodge hole 5, the lockpin dodges the protruding passing of locking that can supply lockpin 3 of the shape size of hole 5, the axis direction that the lockpin dodges hole 5 and the rotation direction looks adaptation of U-shaped trip 2 during operation. In operation, the latch 3 is fixedly attached to the card. For convenient assembly, the spliced pole middle part of lockpin 3 is provided with the location arch, and the spliced pole is kept away from the one end of locking arch 31 and is set up to the threaded rod, and the threaded rod sets up fixation nut 32, and during the assembly, the pilot hole on the integrated circuit board is passed to the one end of lockpin 3 area threaded rod, then it can to lock fixedly through fixation nut 32. The utility model discloses there is auto-lock buckle 4 in 1 internal design of handle, when 1 internal rotation of handle arrived specific position, locking arch 31 passes the lockpin and dodges hole 5, through slip operation auto-lock buckle 4, can make the medial surface of locking arch 31 and the terminal surface laminating that the lockpin dodged hole 5, locking arch 31 can't follow the lockpin and dodge in the hole 5 and follow the lockpin and dodge 5 axis directions of hole and extract this moment, handle 1 can not free rotation, the position of handle 1 is locked, thereby the relative position between locking integrated circuit board and the quick-witted case. The automatic buckle 4 can be unlocked through sliding operation, the locking protrusion 31 is aligned with the lock pin avoiding hole 5, the locking protrusion 31 can be separated from the lock pin avoiding hole 5, and the handle 1 can be normally rotated after unlocking. The utility model discloses a self-locking mechanism has realized reliable, the convenient auto-lock of communication plug-in card equipment to can support the heavy load operation of integrated circuit board under the high density connector condition.

In order to make the structure simple and reliable, the side wall of the sliding groove 21 is provided with a limiting clamping hole 6, the length direction of the limiting clamping hole 6 is consistent with the sliding direction of the self-locking buckle 4, and a clamping block 7 inserted into the limiting clamping hole 6 is arranged on the side surface of the self-locking buckle 4. The sliding stroke of the self-locking buckle 4 can be limited through the fixture block 7, so that the self-locking buckle 4 can be controlled to be switched between a locking state and an unlocking state.

For the assembly of convenient auto-lock buckle 4, spout 21 sets up along the length direction of handle 1, and the one end of spout 21 runs through to the outer terminal surface of handle 1, and the both sides of auto-lock buckle 4 are provided with elastic connection arm 8, and elastic connection arm 8 of both sides is provided with fixture block 7 respectively in the tip position. The elastic connecting arm 8 is a connecting arm with certain elastic deformation capacity, and can be a plastic piece or a metal elastic piece. During the assembly, self-locking buckle 4 directly inserts spout 21 from the terminal surface position of handle 1, and when fixture block 7 of 4 both sides of self-locking buckle moved to the position at spacing calorie of hole 6 place, elastic connection arm 8 kick-backs, and fixture block 7 inserts in spacing calorie of hole 6, realizes connecting the location.

Referring to fig. 3 and 4, in order to make the structure simple and reliable and the operation convenient, a side edge of the lock pin avoiding hole 5 is provided with a clamping notch 16, a connecting line formed by the center of the clamping notch 16 and the center of the lock pin avoiding hole 5 is consistent with the sliding direction of the self-locking buckle 4, the edge of the clamping notch 16 is provided with a first driving surface, the locking protrusion 31 is provided with a second driving surface matched with the first driving surface, and the self-locking buckle 4 can be driven to slide along the sliding chute 21 by the matching of the first driving surface and the second driving surface; be provided with reset spring 9 on auto-lock buckle 4, reset spring 9's axis is unanimous with auto-lock buckle 4's slip direction, and 9 one end of reset spring is connected with auto-lock buckle 4, and the other end is connected with spout 21's tip, and the relation of connection at the 9 both ends of reset spring here can be fixed connection, also can be the cooperation relation of contact, as long as can make reset spring 9 normal atress can, for convenient assembly, the utility model discloses be provided with the cylinder arch at auto-lock buckle 4's tip as spring erection column 20, reset spring 9 cover establish spring erection column 20 periphery can. The first driving surface and the second driving surface can be arc surfaces or inclined surfaces, the handle 1 rotates inwards by utilizing the working principle of the wedge driving mechanism, the locking protrusion 31 is pressed to the clamping notch 16 of the self-locking buckle, the self-locking buckle 4 slides to one side of the reset spring 9 after being obliquely stressed, and the reset spring 9 is compressed; after the self-locking buckle 4 slides until the clamping notch 16 of the self-locking buckle exceeds the edge of the locking protrusion 31 of the lock pin 3, the self-locking buckle 4 is not stressed obliquely any more, and the return spring 9 is reset to push the self-locking buckle 4 to slide in the opposite direction until the clamping notch 16 of the self-locking buckle is clamped below the locking protrusion 31 of the lock pin 3. After the lock pin 3 presses the self-locking buckle 4, the handle 1 cannot be rotated outwards to be opened, and the locking of the pulling aid is realized. When unlocking, the exposed tail end of the self-locking buckle 4 is pushed, the self-locking buckle 4 slides inwards along the sliding groove 21 on the handle 1, and meanwhile, the return spring 9 is compressed; after the self-locking buckle 4 slides until the clamping notch 16 of the self-locking buckle exceeds the edge of the locking protrusion 31 of the lock pin 3, the handle 1 is unlocked and can rotate outwards; after unlocking, the self-locking buckle 4 restores to the position under the action of the return spring 9. The locking protrusion 31 may be any shape, and is preferably designed as a crown protrusion for simple and reliable structure and convenient processing and assembly, in this embodiment, the second driving surface on the locking protrusion 31 is an inclined surface distributed annularly, and the locking protrusion 31 corresponds to a truncated cone structure.

Preferably, the handle 1 is provided with an upper support arm and a lower support arm at the end provided with the U-shaped hook 2, the upper support arm and the lower support arm are respectively provided with the U-shaped hook 2, and the upper support arm and the lower support arm are respectively provided with a mounting round hole or a rotating shaft for forming rotary connection with the board card. The double-rotating-shaft structure can realize reliable plugging stress and meet the high-strength requirement of heavy load; the handle 1 is provided with the two U-shaped clamping hooks 2, so that the stress intensity between the handle and the case can be reduced, the operation is easy and direct under the heavy load condition, and the reliable plugging is realized.

For making simple structure reliable, convenient assembly simultaneously, handle 1 is provided with the installation round hole that is used for forming to rotate the connection with the integrated circuit board at this one end that is provided with U-shaped trip 2, and the installation round hole sets the pivot, and the one end of pivot has spacing end, and the internal thread hole that sets up along its axis is seted up at the terminal surface position to one end in addition, and the internal thread hole sets check screw 10. To make the construction more reliable, a spring washer 19 may also be provided at one or both ends of the mounting hole. When the anti-loosening mechanism is implemented, the set of anti-loosening screws 10, the spring gasket 19 and the upper rotating shaft 17 form an upper rotating shaft mechanism, and the set of anti-loosening screws 10, the spring gasket 19 and the lower rotating shaft 18 form a lower rotating shaft mechanism. The handle 1 is rotatably connected with the panel 11 of the board card through the upper rotating shaft mechanism, and is rotatably connected with the supporting plate 12 of the board card through the lower rotating shaft mechanism, so that the handle can rotate inwards and outwards. It will be appreciated that for normal rotation of the handle 1, the axes of the upper and lower shafts 17, 18 should be parallel or coincident, and in this embodiment, the upper and lower shafts 17, 18 are coaxially disposed.

For convenient operation, the handle 1 is flat, and the width direction of the handle 1 is consistent with the axial direction of a mounting round hole or a rotating shaft at the end part of the handle 1; the handle 1 is in a flat shape, so that the stress area of a hand is increased during plugging and unplugging operation, and the operation feeling can be improved. In addition, the handle 1 is provided with a ventilation lightening hole 13 penetrating through the handle 1 along the thickness direction, thereby not only reducing the weight, but also playing a ventilation role.

A limiting pin 14 is fixedly arranged on a supporting plate 12 of the board card, and the limiting pin 14 is arranged on the rotation stroke of the U-shaped clamping hook 2 and used for limiting the outwards rotating and opening limit position of the handle 1 and avoiding the influence on operation caused by excessive opening. For convenient assembly, the structure of the limit pin 14 is preferably as follows: including the connecting rod of taking the fixed end, the one end that the fixed end was kept away from to the connecting rod is provided with the external screw thread, and during the assembly, behind the mounting hole on the layer board 12 of spacer pin 14 passed the integrated circuit board, it is fixed through 15 locking of nut.

Claims (10)

1. The pulling aid comprises a handle (1), wherein one end of the handle (1) is provided with a U-shaped clamping hook (2), one end of the U-shaped clamping hook (2) is a pulling point, the other end of the U-shaped clamping hook (2) is an inserting point, and the end, provided with the U-shaped clamping hook (2), of the handle (1) is also provided with a mounting round hole or a rotating shaft which is used for being in rotary connection with a board card; the method is characterized in that: still including lockpin (3) that are used for with integrated circuit board fixed connection, lockpin (3) are including the spliced pole and are located the protruding (31) of locking of spliced pole tip, this one end of keeping away from U-shaped trip (2) of handle (1) is provided with auto-lock buckle (4), be provided with spout (21) on the body of handle (1), auto-lock buckle (4) sliding connection sets up in spout (21), be provided with lockpin dodge hole (5) on auto-lock buckle (4), the shape size of lockpin dodge hole (5) can supply the protruding of locking of lockpin (3) to pass, the axis direction of lockpin dodge hole (5) and the rotation direction looks adaptation of U-shaped trip (2) during operation.

2. The extraction aid of claim 1, wherein: the side wall of the sliding groove (21) is provided with a limiting clamping hole (6), the length direction of the limiting clamping hole (6) is consistent with the sliding direction of the self-locking buckle (4), and a clamping block (7) inserted into the limiting clamping hole (6) is arranged on the side surface of the self-locking buckle (4).

3. The extraction aid of claim 2, wherein: the sliding groove (21) is arranged along the length direction of the handle (1), one end of the sliding groove (21) penetrates through the outer end face of the handle (1), the two sides of the self-locking buckle (4) are provided with elastic connecting arms (8), and the elastic connecting arms (8) on the two sides are respectively provided with a clamping block (7) at the end part position.

4. The extraction aid of claim 2, wherein: a clamping notch (16) is formed in the edge of one side of the lock pin avoiding hole (5), a connecting line formed by the center of the clamping notch (16) and the center of the lock pin avoiding hole (5) is consistent with the sliding direction of the self-locking buckle (4), a first driving surface is arranged on the edge of the clamping notch (16), a second driving surface matched with the first driving surface is arranged on the locking protrusion (31), and the self-locking buckle (4) can be driven to slide along the sliding groove (21) through the matching of the first driving surface and the second driving surface; be provided with reset spring (9) on auto-lock buckle (4), the axis of reset spring (9) is unanimous with the slip direction of auto-lock buckle (4), and reset spring (9) one end is connected with auto-lock buckle (4), and the other end is connected with the tip of spout (21).

5. The extraction aid of claim 1, wherein: the middle part of a connecting column of the lock pin (3) is provided with a positioning bulge, one end of the connecting column, which is far away from the locking bulge (31), is provided with a threaded rod, and the threaded rod is provided with a fixing nut (32).

6. The extraction aid of claim 1, wherein: the handle (1) is provided with an upper support arm and a lower support arm at the end provided with the U-shaped clamping hook (2), the upper support arm and the lower support arm are respectively provided with the U-shaped clamping hook (2), and the upper support arm and the lower support arm are respectively provided with a mounting round hole or a rotating shaft which is used for being rotatably connected with the board card.

7. The extraction aid of claim 1, wherein: the handle (1) is provided with the installation round hole that is used for forming to rotate with the integrated circuit board and is connected at this one end that is provided with U-shaped trip (2), and the installation round hole sets the pivot, and the one end of pivot has spacing end, and the internal thread hole that sets up along its axis is seted up at the terminal surface position to one end in addition, and the internal thread hole sets check screw (10).

8. The extraction aid according to any one of claims 1 to 7, wherein: the handle (1) is flat, and the width direction of the handle (1) is consistent with the axial direction of a mounting round hole or a rotating shaft at the end part of the handle (1); the handle (1) is provided with a ventilation lightening hole (13) which penetrates through the handle (1) along the thickness direction.

9. The integrated circuit board with help and pull out the ware, including helping to pull out ware and integrated circuit board, help to pull out and rotate between ware and the integrated circuit board to be connected its characterized in that: the extraction aid as claimed in any one of claims 1 to 8 is adopted, and the lock pin (3) is fixedly connected to the board card; when the handle (1) is provided with an upper support arm and a lower support arm at the end provided with the U-shaped clamping hook (2), the upper support arm is rotationally connected with the panel (11) of the board card, and the lower support arm is rotationally connected with the supporting plate (12) of the board card.

10. A board card with an aid to remove as set forth in claim 9, wherein: a limiting pin (14) is fixedly arranged on a supporting plate (12) of the board card, and the limiting pin (14) is arranged on the rotation stroke of the U-shaped clamping hook (2) and used for limiting the outward rotation and opening limit position of the handle (1); the limiting pin (14) comprises a connecting rod with a fixed end, an external thread is arranged at one end, far away from the fixed end, of the connecting rod, and the limiting pin (14) is locked and fixed through a nut (15) after penetrating through a mounting hole in a supporting plate (12) of the board card.

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