CN212665960U - Handle type pulling aid and pulling aid assembly - Google Patents

Abstract

The utility model discloses a handle formula helps pulls out ware and helps pulls out subassembly. Handle formula helps pull out ware includes: a housing; the core part is arranged in the shell, and two peripheral holes which are centrosymmetric are formed on the periphery of the core part; a handle having a post inserted into the housing, the post coupled with the peripheral bore of the core such that rotation of the handle in a plane perpendicular to an axis causes movement of the core relative to the handle along the axis; a force application portion at least partially disposed within the housing, movement of the core in one direction of the axis causing the force application portion to move in a direction extending out of the housing; and a first elastic member provided in the housing, applying a force to the force application portion such that the force application portion is movable in a direction of retracting into the housing, and movement of the force application portion in the direction of retracting into the housing causes the core to move in a direction opposite to the one direction. The handle-type pulling aid device of the utility model has reliable structure and convenient operation.

Description

Handle type pulling aid and pulling aid assembly

Technical Field

The utility model relates to a handle formula helps pulls out the ware and helps and pull out the subassembly, especially relates to a handle formula of being applied to electronic equipment's such as computer server machine case helps pulls out the ware and helps to pull out the subassembly.

Background

The extraction aid can generally be used to assist in actuation. For example, in the computer field, a pull-out aid may be used to assist an operator in pulling a server-bearing chassis out of a rack. In particular, the pullout aid can reduce the force required for this process due to the large force required to pull the chassis out of the rack.

Existing extraction aids do not have a reliable locking protection, making them susceptible to being actuated incorrectly. Moreover, the existing unplugging assisting device has less consideration to the requirement of ergonomics. Accordingly, there is a need for further improvements in the extraction aid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handle formula helps pulls out ware and helps pulls out subassembly, it can alleviate or eliminate above at least one of the defect.

In order to achieve the above object, the present invention provides a handle-type pull-out aid, comprising: a housing; the core is arranged in the shell, and two peripheral holes which are centrosymmetric are formed in the periphery of the core; a handle having a post inserted into the housing, the post coupled with the peripheral bore of the core such that rotation of the handle in a plane perpendicular to an axis causes movement of the core relative to the handle along the axis; a force application portion disposed at least partially within the housing, movement of the core in one direction of the axis causing the force application portion to move in a direction extending out of the housing; a first elastic member provided in the housing, applying a force to the force application portion so that the force application portion is movable in a direction of retracting the housing, and movement of the force application portion in the direction of retracting the housing causes the core to move in a direction opposite to the one direction.

Optionally, the inner surface of at least a part of the peripheral hole of the core part is in a spiral shape, and the handle-type extraction aid further comprises a pin which is fixed to the insertion column of the handle and inserted into the peripheral hole so as to be movable along the inner surface of the at least a part of the peripheral hole.

Optionally, the housing includes a base having a top opening and a cover covering and secured to the top opening.

Optionally, the cover is formed with a hole, and the post of the handle is inserted into the housing through the hole in the cover.

Optionally, the handle comprises a locking member actuatable to displace relative to the remainder of the handle, the locking member having an initial state in which the locking member engages a notch provided on the inside of the aperture of the cover portion to prevent rotation of the handle, and an actuated state in which the locking member disengages the notch to allow rotation of the handle; and a second elastic member is provided between the locking member and the other portion of the handle to apply a force to the locking member to keep the locking member in the initial state.

Optionally, the base has a side opening, and a side plate for operation and maintenance covers the side opening to open or close the side opening.

Optionally, the bottom of base has the hole, handle formula helps the ware to pull out still includes plug portion and torsional spring, plug portion is fixed in the hole of base and stretch into in the concave part of the one end of inserting the post, the both ends of torsional spring are fixed respectively plug portion or the base with insert the post in order to the handle is exerted and is prevented handle pivoted torsional force.

Optionally, the core includes a body formed with a central hole into which the stud of the handle is inserted, and a pressing plate protruding from the body and contacting the force application portion.

Optionally, the handle-style extraction aid further comprises a third resilient member disposed between the housing and the core to apply a force to the core in a direction opposite to the one direction.

In order to achieve the above object, the utility model also provides an assist and pull out subassembly, it includes: a chassis; the two handle-type pulling-out aids are respectively arranged at two sides of the case and are in a symmetrically-operable configuration, so that the force application parts of the two handle-type pulling-out aids can synchronously extend out or retract through the relative reverse rotation of the two handles.

The utility model discloses at least one in following beneficial effect has: the handle type pulling assisting device is reliable in structure, good in operation texture, convenient to operate, capable of being designed by human engineering, capable of avoiding misoperation and convenient to maintain and repair. The pulling-assisted assembly has an ergonomic design, can be held by a whole palm, and is convenient to operate by two hands.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a front view of a handle extraction aid according to the present application;

FIG. 2 is a top view of a handle extraction aid according to the present application;

FIG. 3 is a bottom view of the handle extraction aid according to the present application;

FIGS. 4 and 5 are plan views of a handle extraction aid according to the present application;

FIG. 6 is a rear view of a handle extraction aid according to the present application;

FIGS. 7-12 are perspective views of a handle extraction aid according to the present application, with the side plate removed in FIG. 10;

FIGS. 13-15 are perspective views of the body of the handle extraction aid according to the present application;

FIGS. 16-17 are perspective views of the locking member of the handle extraction aid according to the present application;

FIGS. 18-19 are perspective views of a handle cover of a handle extraction aid according to the present application;

FIGS. 20-21 are perspective views of the cap portion of the handle extraction aid according to the present application;

FIGS. 22-26 are perspective views of the base of the handle extraction aid, respectively, according to the present application;

FIGS. 27-28 are perspective views of side plates of the handle extraction aid, respectively, according to the present application;

FIGS. 29-31 are perspective views of the core of the handle extraction aid, respectively, according to the present application;

FIG. 32 is an exploded perspective view of the handle extraction aid according to the present application;

FIG. 33 is a perspective view of a pull-aid assembly according to the present application;

FIG. 34 is a partial plan view of the extraction aid assembly according to the present application, with the handle in an unrotated state;

FIG. 35 is a partial plan view of the extraction aid assembly according to the present application, with the handle in a rotated condition;

FIG. 36 is an exploded perspective view of a pull-aid assembly according to the present application;

FIG. 37 is a plan view of the handle extraction aid according to the present application with the locking member in an initial state and with portions of the elements removed to better illustrate the internal structure;

fig. 38 is a sectional view taken along line BA-BA of fig. 37;

FIG. 39 is a partial cross-sectional view taken along line AY-AY of FIG. 37;

FIG. 40 is a partial cross-sectional view taken along line AW-AW of FIG. 37;

FIG. 41 is a cross-sectional view taken along line AX-AX of FIG. 37;

FIG. 42 is a partial cross-sectional view taken along line AZ-AZ of FIG. 37;

FIG. 43 is a plan view of the handle extraction aid according to the present application, with the locking member in an initial state;

FIG. 44 is a cross-sectional view taken along the line BD-BD of FIG. 43;

FIG. 45 is a partial cross-sectional view taken along line BB-BB of FIG. 43;

FIG. 46 is a partial cross-sectional view taken along line BC-BC of FIG. 43;

FIG. 47 is a plan view of the handle extraction aid according to the present application with the lock in the actuated state and with parts removed to better illustrate the internal structure;

FIG. 48 is a cross-sectional view taken along line BX-BX of FIG. 47;

FIG. 49 is a partial cross-sectional view taken along line BS-BS of FIG. 47;

FIG. 50 is a partial cross-sectional view taken along line BP-BP of FIG. 47;

FIG. 51 is a cross-sectional view taken along line BR-BR of FIG. 47;

FIG. 52 is a partial cross-sectional view taken along line BT-BT of FIG. 47;

FIG. 53 is a plan view of the handle extraction aid according to the present application with the locking member in an actuated state;

FIG. 54 is a cross-sectional view taken along line BU-BU of FIG. 53;

FIG. 55 is a partial cross-sectional view taken along line BV-BV of FIG. 53;

FIG. 56 is a partial cross-sectional view taken along line BW-BW of FIG. 53;

FIG. 57 is a plan view of a handle extraction aid according to the present application, with the handle in a rotated state and with parts removed to better illustrate internal structure;

FIG. 58 is a partial cross-sectional view taken along line CG-CG of FIG. 57;

FIG. 59 is a partial cross-sectional view taken along line CC-CC of FIG. 57;

FIG. 60 is a partial cross-sectional view taken along line BY-BY of FIG. 57;

FIG. 61 is a cross-sectional view taken along line CA-CA of FIG. 57;

FIG. 62 is a partial cross-sectional view taken along line CD-CD of FIG. 57;

FIG. 63 is a plan view of a handle extraction aid according to the present application, with the handle in a rotated state;

FIG. 64 is a cross-sectional view taken along line CE-CE of FIG. 63;

FIG. 65 is a partial cross-sectional view taken along line BZ-BZ of FIG. 63;

FIG. 66 is a partial cross-sectional view taken along line CF-CF of FIG. 63;

FIG. 67 is a plan view of a handle extraction aid according to the present application, with the handle in a rotated state;

list of reference numerals:

1 handle type pulling aid

10 handle

110 handle cover

120 locking piece

130 body

140 first pin

150 second pin

160 inserting column

170 second elastic member

180 concave part

20 cover part

210 hole

220 notch

30 core part

310 body

311 center hole

312 peripheral hole

320 pressing plate

40 force application part

50 base

510 open at the top

520 side opening

530 first hole

540 second hole

60 side plate

70 plug part

901 first elastic member

902 torsion spring

903 third elastic member

2 case

Detailed Description

For further explanation of the principles and structure of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1-12, the handle-style extraction aid 1 of the present application may include: a housing; a core 30 disposed in the housing, the core 30 having two centrally symmetrical peripheral holes formed in an outer periphery thereof; a handle 10 having a post 160 inserted into the housing, the post 160 being coupled with the peripheral hole of the core 30 such that rotation of the handle 10 in a plane perpendicular to an axis causes movement of the core 30 relative to the handle 10 along the axis; a force application portion 40 at least partially disposed within the housing, movement of the core 30 in one direction of the axis causing the force application portion 40 to move in a direction extending out of the housing; a first elastic member 901, provided in the housing, applies a force to the force application portion 40 so that the force application portion 40 can move in a direction of retracting into the housing, and the movement of the force application portion 40 in the direction of retracting into the housing causes the core 30 to move in a direction opposite to the one direction.

The handle 10 can be turned, for example, by 90 deg. so that the force application portion 40 protrudes to the outside of the housing by a certain distance, for example, 1cm-2 cm. The above distances and angles are merely examples and are not intended to be limiting. By converting the rotation of the handle 10 into the translational movement of the force application portion 40, the force applied to the handle 10 can be amplified.

As shown in fig. 29-31, the core 30 may include a body 310 and a platen 320. The body 310 of the core 30 may be formed generally in a hollow cylindrical shape. The cylindrical shape may form a radially protruding angle to facilitate assembly and prevent rotation of the core 30 in the housing. The body 310 may be formed with a central bore 311. The post 160 of the handle 10 is inserted into the central hole 311. The pressing plate 320 extends from the body 310 and contacts the force application portion 40.

The body 310 of the core 30 may have a peripheral aperture 312. The inner surface of at least a portion of the peripheral hole 312 of the core 30 (e.g., the upper edge of the peripheral hole 312 shown in fig. 29) may be in a spiral shape. The peripheral hole 312 may be formed in other shapes as long as it can convert the rotational motion of the handle 10 into the linear motion of the core 30. The handle extraction aid 1 may also include a first pin 140 and a second pin 150. The second pin 150 may be fixed to the insert post 160 of the handle 10 and inserted into the peripheral hole 312 to be movable along an inner surface of at least a portion of the peripheral hole (e.g., an upper edge of the peripheral hole 312 shown in fig. 29). The core 30 also includes a platen 320 that projects radially outward from the body 310 of the core 30 and may be formed as a sheet.

The first pin 140 may be fixed to the post 160 and located between the second pin 150 and the body 130 of the handle 10. As shown in fig. 41, the first pin 140 may be located between the core 30 and the inner wall of the housing, so that the handle 10 may be stably fixed to the housing.

The housing may include a base 50 and a cover 20. The base 50 may have a top opening 510. The cover 20 may cover and be secured to the top opening 510. The cover 20 is formed with a hole 210. The post 160 of the handle 10 is inserted into the housing through the hole 210 in the cover 20. The base 50 may have a side opening 520. The handle extraction aid 1 may also include a side plate 60. The side plate 60 may cover the side opening 520 and may be opened to provide access to the interior of the housing when it is desired to operate and maintain the handle extraction aid 1. The side plates 60 are pivotally mounted on the base 50.

The handle 10 may include a handle cover 110, a locking member 120, a body 130, and a stake 160. The handle cover 110 may be disposed over the body 130 to collectively form a cavity. The insert post 160 extends perpendicularly from one end of the body 130 to form a rotation axis of the handle 10. The insertion column 160 is formed with a through hole through which the first pin 140 and the second pin 150 are inserted. A majority of the locking member 120 is disposed within the cavity and is capable of translating within the cavity. One end (the upper end shown in fig. 16-17) of the locking member 120 is exposed to the exterior to facilitate translation of the locking member 120 within the cavity by actuating the end.

The locking member 120 can be actuated to displace relative to the rest of the handle 10. By translating within the cavity, the locking member 120 can have an initial state (as shown in fig. 37-46) and an actuated state (as shown in fig. 47-56). As shown in fig. 16 to 17, the lower end of the locking member 120 is formed in a bent state. In the initial state of the locking member 120, the bent portion of the lower end of the locking member 120 is engaged with the notch 220 (see fig. 20 and 21) formed inside the hole 210 of the cover portion 20, thereby preventing the rotation of the handle 10. In the actuated state of the locking member 120, the bent portion of the lower end of the locking member 120 is disengaged from the notch 220 to allow rotation of the handle 10.

The force application portion 40 may be formed in a tack shape having one end larger. The first elastic member 901 may be, for example, a spring fitted over the urging portion 40. Both ends of the first elastic member 901 act on the inner side of the base portion and the larger end portion of the urging portion 40, respectively, so as to push the urging portion 40 toward retraction into the housing (the smaller end of the urging portion 40 can be always exposed outside the housing). The pressing plate 320 of the core 30 may contact the larger end of the force application part 40.

The handheld extraction aid 1 can also include a second resilient member 170 and a third resilient member 903. The second elastic member 170 may be disposed in the cavity of the handle 10, and both ends abut against the locking member 120 and the body 130 of the handle 10, respectively, so as to apply a pushing force to the locking member 120 to tend to keep the locking member 120 engaged with the notch 220. That is, the second elastic member 170 serves to apply a force to the locking member 120 such that the locking member 120 is maintained in an initial state. For example, there may be two second elastic members 170. The second elastic member 170 may be a spring.

A third elastic member 903 may be disposed between one end surface of the core 30 and the inner wall of the base to apply a pushing force to the core 30 toward the cover 20. For example, there may be two third elastic members 903. The third elastic member 903 may be a spring.

Referring to fig. 23-24, the bottom of the base 50 may have a first hole 530. The handheld extraction aid 1 can also include a plug portion 70 and a torsion spring 902. The plug portion 70 may be fixed at the position of the first hole 530 of the base 50 and extend into the recess 180 of one end of the plug 160 (as shown in fig. 14, 15, 50 and 51). The torsion spring 902 may have both ends fixed to the plug portion 70 or the base 50 and the post 160, respectively, to apply a twisting force to the handle 10 that prevents the handle 10 from rotating. The base 50 may have a second hole 540. The force application portion 40 may protrude from the housing through the second hole 540.

Referring to fig. 33-36, the extraction aid assembly of the present application may include: a case 2; the two handle-type pulling aids 1 are respectively arranged at two sides of the case 2 and are in a symmetrical configuration (the two handle-type pulling aids 1 have a mirror-symmetrical structure), so that the force application parts 40 of the two handle-type pulling aids 1 can synchronously extend or retract through the relative reverse rotation of the two handles 10.

When the operator holds the handle 10, the exposed end of the locking member 120, which is located at the free end of the handle 10, is conveniently accessible by the thumb. Referring to fig. 33, since the two grip type extraction aid 1 is installed with the grip 10 disposed upward, when the extraction aid is extracted by rotating the grip 10, the grip 10 can be held by the entire palm of the hand, thereby enabling easy extraction of the extraction aid.

The operation of the handle-style extraction aid 1 and the extraction aid assembly will be explained next.

First, the operator can hold the handle 10 and press the right end of the locking member 120 (see fig. 40), for example, by the thumb, and push the locking member 120 to move leftward against the elastic force of the second elastic member 170. When the locking member 120 is moved to the position shown in fig. 55 (actuated state), the locking member 120 no longer prevents rotation of the handle 10 (the handle may only allow rotation in one direction). Then, the lock member 120 is maintained in the actuated state while the handle 10 is rotated. At this time, the second pin 150 rotates together with the handle 10. In this process, the core 30 moves downward due to the interference of the peripheral hole 312 of the core 30 with the second pin 150 (see fig. 51 and 60). The pressing plate 320 of the core 30 further presses the force application portion 40 downward, thereby causing the force application portion 40 to protrude out of the housing against the elastic force of the first elastic member 901. When the force application part 40 extends out of the housing, the force application part 40 abuts against a device (e.g., a rack) placed on the case 2 to enable the handle-type extraction aid 1 and the case 2 to move together in a direction away from the device, so that the extraction operation is realized.

When the pull-aid assembly is pulled out, the operator releases the handle 10. At this time, the first elastic member 901 pushes the urging portion 40 upward (upward in fig. 54), and the urging portion 40 pushes the pressing plate 320 of the core 30 upward. At the same time, the core 30 may be pushed upward by the third elastic member 903. Since the peripheral hole 312 and the second pin 150 interfere with each other, the upward movement of the core 30 causes the handle 10 to rotate toward the initial, unrotated state (the state shown in fig. 37). At the same time, torsion spring 902 also assists in the rotation. When the handle 10 is rotated to a non-rotated state, the second elastic member 170 pushes the locking member 120 to the right, so that the left end of the locking member 120 is engaged with the notch 220, thereby locking the handle 10 against rotation.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

While the present invention has been described with reference to a list of exemplary embodiments, the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its scope as defined in the appended claims, and therefore all changes that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A handle-type extraction aid (1), characterized in that it comprises:

a housing;

a core (30) disposed within the housing, the core (30) having two centrally symmetric peripheral holes formed in an outer periphery thereof;

a handle (10) having a post (160) inserted into the housing, the post (160) being coupled with a peripheral aperture of the core (30) such that rotation of the handle (10) in a plane perpendicular to an axis causes movement of the core (30) relative to the handle (10) along the axis;

a force application portion (40) disposed at least partially within the housing, movement of the core (30) in one direction of the axis causing the force application portion (40) to move in a direction extending out of the housing;

a first elastic member (901) that is provided in the housing, applies a force to the force application portion (40) such that the force application portion (40) is movable in a direction of retracting the housing, and movement of the force application portion (40) in the direction of retracting the housing causes the core portion (30) to move in a direction opposite to the one direction.

2. Handle extraction aid (1) according to claim 1, characterized in that the inner surface of at least a part of the peripheral hole of the core (30) presents a spiral shape, the handle extraction aid (1) further comprising a pin fixed to the post (160) of the handle (10) and inserted in the peripheral hole so as to be movable along the inner surface of said at least a part of the peripheral hole.

3. Handle-style extraction aid (1) according to claim 1, characterized in that said housing comprises a base (50) and a cover (20), said base (50) having a top opening (510), said cover (20) covering and being fixed to said top opening (510).

4. Handle-style extraction aid (1) according to claim 3, characterized in that the cover (20) is formed with a hole (210), the plug-in post (160) of the handle (10) being inserted into the housing via the hole (210) on the cover (20).

5. Handle-style extraction aid (1) according to claim 4, characterized in that the handle (10) comprises a locking member (120) which can be actuated to displace with respect to the rest of the handle (10), the locking member (120) having an initial condition in which the locking member (120) engages a notch (220) made inside a hole (210) of the cover (20) preventing the rotation of the handle (10), and an actuated condition in which the locking member (120) disengages the notch to allow the rotation of the handle (10); and is

A second elastic member (170) is provided between the locking member (120) and the other portion of the handle (10) to apply a force to the locking member (120) to keep the locking member (120) in the initial state.

6. Handle-type extraction aid (1) according to claim 3, characterized in that said base (50) has a side opening (520), and a side plate (60) for operation and maintenance covers said side opening (520) to open or close said side opening (520).

7. A handheld extraction aid (1) according to claim 3, characterized in that the base (50) has a hole at the bottom, the handheld extraction aid (1) further comprises a plug portion (70) and a torsion spring (902), the plug portion (70) is fixed to the hole of the base (50) and extends into the recess (180) at one end of the insertion post (160), and both ends of the torsion spring (902) are respectively fixed to the plug portion (70) or the base (50) and the insertion post (160) to apply a twisting force to the handle (10) that prevents the handle (10) from rotating.

8. A handle-style extraction aid (1) according to claim 1, wherein the core (30) comprises a body (310) and a pressure plate (320), the body (310) being formed with a central hole (311), the stud (160) of the handle (10) being inserted into the central hole (311), the pressure plate (320) projecting from the body (310) and being in contact with the force-applying portion (40).

9. A handle extraction aid (1) according to claim 1, characterized in that the handle extraction aid (1) further comprises a third resilient member (903), the third resilient member (903) being arranged between the housing and the core (30) to apply a force to the core (30) in a direction opposite to the one direction.

10. A pull-aid assembly, comprising:

a chassis (2);

two handle pull-out aids (1) according to any one of claims 1 to 9, wherein the two handle pull-out aids (1) are respectively arranged at two sides of the case (2) and are in a symmetrically-operable configuration, so that the force application parts (40) of the two handle pull-out aids (1) can be synchronously extended or retracted through the relative opposite rotation of the two handles (10).

Images