Pulling assisting device and pulling assisting device assembly

Abstract

The utility model discloses an auxiliary pulling device and a support assembly, and the auxiliary pulling device comprises a base; a first lever pivotally connected to the base along a first axis; the second lever is pivotally connected to the base along a second axis and is linked with the first lever; and the unlocking mechanism is movably arranged on the first lever so as to stop or allow the pivoting of the first lever, the unlocking mechanism is provided with a mistaken touch prevention device, and the mistaken touch prevention device is arranged to keep the unlocking mechanism at a position where the pivoting of the first lever is stopped. The pulling assisting device is compact in structure and capable of preventing misoperation.

Description

Technical Field

[0001] This application relates to a pull-out aid and a pull-out aid assembly, and more particularly to a pull-out aid and a pull-out aid assembly for a computer server. Background Technology

[0002] A pull-out aid is a device that uses leverage to assist in the insertion and removal of two objects. In the server industry, inserting or removing storage units often requires considerable force, such as over 100 kg. Thus, it is difficult for operators to provide sufficient force without tools. A pull-out aid amplifies the human effort through leverage, making it easier to remove or insert storage units from the interface.

[0003] While existing extraction aids can assist with insertion and removal, their structure is not compact enough and their size is relatively large. Furthermore, existing extraction aids lack operational stability, are prone to misoperation, and have an unpleasant mechanical feel. Therefore, there is a need for further improvement in extraction aids. Utility Model Content

[0004] The purpose of this application is to provide a pull-out aid that can alleviate or eliminate at least one of the defects described above.

[0005] To achieve the above objectives, this application provides a pull-out aid comprising a base; a first lever pivotally connected to the base along a first axis; a second lever pivotally connected to the base along a second axis and linked to the first lever; and an unlocking mechanism movably disposed on the first lever to prevent or allow pivoting of the first lever, the unlocking mechanism being provided with an anti-accidental contact device configured to hold the unlocking mechanism in a position preventing pivoting of the first lever.

[0006] In one embodiment, the unlocking mechanism is pivotally connected to the first lever along a third axis, and the anti-accidental touch device prevents the first lever from pivoting by preventing the unlocking mechanism from pivoting.

[0007] In one embodiment, the unlocking mechanism has a locked position and an unlocked position, wherein in the locked position, one end of the unlocking mechanism abuts against the base, and the anti-accidental contact device abuts against the first lever at the other end of the unlocking mechanism.

[0008] In one embodiment, the anti-accidental touch device is pivotally connected to the other end of the unlocking mechanism.

[0009] In one embodiment, the unlocking mechanism has a locked position and an unlocked position, wherein, in the locked position, one end of the unlocking mechanism abuts against the base, and the anti-accidental touch device operably abuts against the other end of the unlocking mechanism.

[0010] In one embodiment, the anti-accidental touch device is pivotally connected to the first lever.

[0011] In one embodiment, the base has a contact portion, and during the pivoting of the unlocking mechanism, one end of the unlocking mechanism remains in contact with the contact portion.

[0012] In one embodiment, one end of the unlocking mechanism has a roller, and the contact portion includes a stop and a guide surface, wherein, in the locked position, the roller abuts against the stop; and in the unlocked position, the roller rolls on the guide surface as the first lever pivots.

[0013] In one embodiment, the first lever has an anti-accidental contact engagement portion that limits the movement of the anti-accidental contact device.

[0014] In one embodiment, the first lever has an unlocking mechanism receiving portion to receive at least a portion of the unlocking mechanism, the unlocking mechanism having an unlocking portion exposed outside the first lever when the unlocking mechanism is in the locked position.

[0015] In one embodiment, the puller includes a limiting member, the first lever having a first pivot position and a second pivot position, wherein when the first lever pivots to the first pivot position, the unlocking mechanism locks the first lever; and when the first lever pivots to the second pivot position, the limiting member locks the first lever.

[0016] In one embodiment, the limiting member is pivotally connected to the base along a fourth axis and includes a limiting portion and a limiting release portion, wherein the limiting portion abuts against the first lever to lock the first lever, and the limiting release portion is actuated to release the limiting portion from locking the first lever.

[0017] In one embodiment, the first lever has a first linkage portion and the second lever has a second linkage portion, wherein the first linkage portion engages with the second linkage portion, thereby linking the first lever with the second lever.

[0018] In one embodiment, the first linkage has one of an external tooth and an internal tooth extending circumferentially around the first axis, and the second linkage has the other of an external tooth and an internal tooth extending circumferentially around the second axis.

[0019] In one embodiment, the first linkage portion is formed as a protrusion along the first axis direction, and the second linkage portion is formed as a groove.

[0020] In one embodiment, the first lever has a pivoting limit portion, and the base limits the pivoting range of the first lever between a first pivoting position and a second pivoting position by limiting the pivoting limit portion.

[0021] In one embodiment, the pivoting limiting portion is formed as an arc-shaped through hole centered on the first axis.

[0022] In one embodiment, the second lever has a tongue that extends beyond the base, and the pivoting force applied to the first lever is amplified and transmitted to the tongue.

[0023] In one embodiment, the puller is fixed to a first object located inside a second object, and when the first lever pivots from the first pivot position to the second pivot position, the tongue pushes against the second object to move the first object away from the second object.

[0024] In one embodiment, the limit release part extends beyond the puller, and when the first object moves into the second object, the second object actuates the limit release part to release the limit part from locking the first lever.

[0025] In one embodiment, the anti-accidental touch device is pivotally connected to the unlocking mechanism along a fifth axis.

[0026] In one embodiment, the first axis, the second axis, the third axis, the fourth axis, and the fifth axis are parallel to each other.

[0027] In one embodiment, the first axis is parallel to the second axis.

[0028] In one embodiment, the anti-accidental touch device is formed in a ring shape.

[0029] On the other hand, a pull-out aid assembly is provided, which includes two pull-out aids as described above, and the two pull-out aids are mirror-symmetrical to each other.

[0030] This application has at least one of the following beneficial effects:

[0031] 1. The pull-out aid of this application has an unlocking mechanism, which can prevent accidental operation.

[0032] 2. The pull-out device of this application has an anti-accidental activation device, thereby preventing the unlocking mechanism from being unintentionally actuated.

[0033] 3. The unlocking mechanism of the extraction aid in this application is convenient and labor-saving to operate, and can reliably lock and unlock the extraction aid.

[0034] 4. The unlocking mechanism of the pull-out aid in this application has a compact structure and small size.

[0035] 5. The unlocking mechanism of the pull-out aid of this application has a roller that can roll smoothly on the guide surface, thereby reducing friction. Attached Figure Description

[0036] The various objectives, features, and advantages of this application will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of this application and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0037] Figure 1 This is a front view of the pull-out aid of this application;

[0038] Figure 2 This is a left view of the pull-out device of this application;

[0039] Figure 3 This is a right view of the pull-out device of this application;

[0040] Figure 4 This is a top view of the pull-out aid in this application;

[0041] Figure 5 This is a bottom view of the pull-out device of this application;

[0042] Figure 6 This is a plan view of the extraction aid in this application;

[0043] Figures 7-10 These are perspective views of the extraction aid device of this application from different angles;

[0044] Figure 11 This is an exploded perspective view of the extraction aid of this application;

[0045] Figure 12 and Figure 13 These are perspective views of two different pull-out aids that are mirror images of each other in this application;

[0046] Figure 14 This is a partial top view of the pull-out device of this application, in which the unlocking mechanism is not unlocked;

[0047] Figure 15 It is along Figure 14 A sectional view taken by line JJ;

[0048] Figure 16 It is along Figure 14 A cross-sectional view taken by line KK;

[0049] Figure 17 It is along Figure 14 A sectional view taken by line XX;

[0050] Figure 18 This is a partial top view of the pull-out device of this application, in which the unlocking mechanism is locked;

[0051] Figure 19 This is a perspective view of the pull-out aid of this application, in which the unlocking mechanism is locked;

[0052] Figure 20 It is along Figure 18 A sectional view taken by line RR;

[0053] Figure 21 It is along Figure 18 A sectional view taken by the line SS;

[0054] Figure 22 It is along Figure 18 A cross-sectional view taken by line YY;

[0055] Figure 23 This is a partial top view of the pull-out device of this application, in which the first lever is actuated;

[0056] Figure 24 This is a perspective view of the pull-out device of this application, wherein the first lever is actuated;

[0057] Figure 25 It is along Figure 23 A cross-sectional view taken by line VV;

[0058] Figure 26 It is along Figure 23 A cross-sectional view taken by the line WW;

[0059] Figure 27 It is along Figure 23 A cross-sectional view taken by line ZZ;

[0060] Figures 28-30 These are perspective views of the first lever of the pull-out device of this application from different angles;

[0061] Figure 31 These are perspective views of the second lever of the pull-out device of this application from different angles;

[0062] Figure 32 and Figure 33 These are perspective views of the limiting component of the pull-out aid device of this application from different angles;

[0063] Figure 34 These are perspective views of the unlocking mechanism of the pull-out aid in this application from different angles;

[0064] Figures 35-38 These are perspective views of the base of the pull-out device of this application from different angles;

[0065] Figure 39 This is a perspective view of another embodiment of the pull-out aid in this application, wherein the anti-accidental contact device is in the locked position;

[0066] Figure 40 This is a perspective view of a pull-out aid according to another embodiment of this application, wherein the anti-accidental contact device is in the unlocked position; and

[0067] Figure 41 This is an exploded perspective view of a pull-out aid according to another embodiment of this application.

[0068] List of reference numerals in the attached diagram:

[0069] 1 Pull-out device

[0070] 10 First Lever

[0071] 110 base

[0072] 111 Pivot Hole

[0073] 112 Pivot Limiting Section

[0074] 113 First Joint Operation Unit

[0075] 1131 teeth

[0076] 114 Stop section

[0077] 120 arm

[0078] 121 neck

[0079] 122 Unlocking Mechanism Containment Department

[0080] 1221 Positioning Department

[0081] 1222 receiving slot

[0082] 1223 Anti-accidental touch coordination part

[0083] 123 handle

[0084] 124 accommodating slots

[0085] 20 Second Lever

[0086] 210 pivot hole

[0087] 220 Second Combination Unit

[0088] 221 teeth

[0089] 230 tongue

[0090] 30 limit components

[0091] 310 Pivot Section

[0092] 320 limit section

[0093] 330 Limit Release Section

[0094] 340 reset component

[0095] 40 bases

[0096] 410 Container

[0097] 420 Contact Department

[0098] 421 Stop section

[0099] 422 guide surface

[0100] 430 cap

[0101] 440 opening

[0102] 50 unlocking mechanisms

[0103] 510 Pivot Hole

[0104] 520 Contact Department

[0105] 521 rollers

[0106] 522 Roller Mount

[0107] 530 unlocking arm

[0108] 531 Unlocking Department

[0109] 540 reset card slot

[0110] 550 reset component

[0111] 560 Anti-accidental touch device

[0112] 901~904, 906 pins

[0113] 905 fastener

[0114] 907 spacer

[0115] A1~A5 axis Detailed Implementation

[0116] To further illustrate the principles and structure of this application, preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. However, the embodiments described are for illustrative and explanatory purposes only and should not be used to limit the scope of patent protection of this application.

[0117] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0118] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0119] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "attachment," "fixing," and "combination," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities at the point of connection do not establish a connection relationship through an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0120] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0121] See Figures 1 to 6The puller 1 may be formed in an approximately "L" shape, but this application is not limited thereto. The puller 1 can be used to pull a first object (not shown) placed inside a second object (not shown) out of the second object. The first object may be a support tray. The second object may be a bracket. In the case of the puller 1 being applied to a computer server, the first object may be the server's support tray, and the second object may be the server's bracket. The puller 1 may be fixed to the first object and may amplify the operator's force to the second object, thereby moving the first object away from the second object (i.e., constituting a force that moves the first object away from the second object). It should be noted that since the server needs to be separated from multiple joints or connectors in the initial stage of separation from the server bracket, a large force needs to be applied, which may exceed the force that the operator can apply.

[0122] See Figures 7 to 10 The pull-out aid 1 may include a base 40, a first lever 10, a second lever 20, and an unlocking mechanism 50. Optionally, the pull-out aid 1 may also include a limiting member 30. The first lever 10 is pivotally connected to the base 40 along a first axis A1. The second lever 20 is pivotally connected to the base 40 along a second axis A2. The unlocking mechanism 50 is movably disposed on the first lever 10 to prevent or allow pivoting of the first lever 10. In one embodiment, the unlocking mechanism 50 is pivotally connected to the first lever 10 along a third axis A3. The limiting member 30 is pivotally connected to the base 40 along a fourth axis A4. The unlocking mechanism 50 may be provided with an anti-accidental contact device 560. The anti-accidental contact device 560 may be configured to hold the unlocking mechanism 50 in a position that prevents the first lever 10 from pivoting. In one embodiment, the anti-accidental contact device 560 is pivotally connected to the unlocking mechanism 50 along a fifth axis A5. At least two of the first axis A1, second axis A2, third axis A3, fourth axis A4, and fifth axis A5 may be parallel to each other. In one embodiment, the first axis A1, the second axis A2, the third axis A3, the fourth axis A4, and the fifth axis A5 are all parallel to each other. The second lever 20 can be linked to the first lever 10 (described in detail below). The base 40 may have a receiving space to at least partially receive the first lever 10, the second lever 20, and the limiting member 30.

[0123] See Figure 11 The base 40 may have an opening 440 to facilitate the installation of components such as the first lever 10, the second lever 20, and the unlocking mechanism 50. The cover 430 may be secured to the base 40 by means of a fastener 905 to at least partially cover the opening 440. The fastener 905 may be, for example, a screw, but is not limited thereto.

[0124] See Figure 11 , Figures 28 to 30The first lever 10 may include a base 110 and an arm 120. The base 110 may be located inside the base 40. The arm 120 may extend from the base 40. The first lever 10 may be made of metal, such as aluminum alloy, steel, iron, stainless steel, etc. Alternatively, the first lever 10 may be made of plastic.

[0125] The base 110 of the first lever 10 may include a pivot hole 111, a pivot limiting portion 112, a first linkage portion 113, and a stop portion 114. A pin 901 may pass through the pivot hole 111 of the base 110, thereby pivotally connecting the first lever 10 to the base 40. The pivot limiting portion 112 may be a through hole extending through the base 110 along the direction of the first axis A1. The pivot limiting portion 112 may have an arc shape centered on the first axis A1. A pin 906 may pass through the pivot limiting portion 112 and be fixed to the base 40. The pin 906 may cooperate with the pivot limiting portion 112 to limit the rotation angle of the first lever 10 relative to the base 40. The first linkage portion 113 may be a protrusion protruding along the direction of the first axis A1. The first linkage portion 113 may have teeth 1131 extending circumferentially around the first axis A1. In embodiments where the first linkage portion 113 is a protrusion, the tooth 1131 may be an external tooth. The tooth 1131 may be formed within a certain angular range. The pivot limiting portion 112 and the first linkage portion 113 may be located on both sides of the pivot hole 111, but this application is not limited thereto. The stop portion 114 may be located on the side of the base portion 110 and may be formed as a recessed portion that is radially recessed along a direction perpendicular to the first axis A1.

[0126] In another embodiment, the first linkage 113 may be a through hole or a groove. The first linkage 113 may have internal teeth extending circumferentially around the first axis A1.

[0127] The arm portion 120 may include a neck 121, an unlocking mechanism receiving portion 122, and a handle portion 123. The neck 121 may connect the unlocking mechanism receiving portion 122 and the base 110. The handle portion 123 may be located on the side of the unlocking mechanism receiving portion 122 away from the neck 121. The unlocking mechanism receiving portion 122 and the handle portion 123 may extend generally in a straight line. The neck 121 may be angled relative to the unlocking mechanism receiving portion 122 or the handle portion 123, but this application is not limited thereto. The handle portion 123 is available for an operator's hand to grip. The unlocking mechanism receiving portion 122 may accommodate at least a portion of the unlocking mechanism 50.

[0128] The unlocking mechanism receiving portion 122 may include a positioning portion 1221, a receiving groove 1222, and an anti-accidental contact mating portion 1223. The receiving groove 1222 may be formed as a recess that opens to one side. The receiving groove 1222 is used to receive the unlocking mechanism 50, such that the unlocking mechanism 50 is partially disposed within the receiving groove 1222. The anti-accidental contact mating portion 1223 may be formed at one end of the unlocking mechanism receiving portion 122 near the handle portion 123. The anti-accidental contact mating portion 1223 may be formed as a recess, but this application is not limited thereto.

[0129] See Figure 11 and Figure 31 The second lever 20 may include a pivot hole 210, a second linkage 220, and a tongue 230. A pin 902 may pass through the pivot hole 210 of the second lever 20, thereby pivotally connecting the second lever 20 to the base 40. The second linkage 220 may be a through hole or groove along the second axis A2. The shape of the second linkage 220 may correspond to the shape of the first linkage 113, such that the first linkage 113 can be inserted into the second linkage 220. The second linkage 220 may have teeth 221 extending circumferentially about the second axis A2. In embodiments where the second linkage 220 is a through hole, the teeth 221 may be internal teeth. The teeth 221 may be formed within a certain angular range. The angular range of the teeth 221 may be the same as or different from the angular range of the teeth 1131. The tongue 230 may extend generally radially (perpendicular to the second axis A2). When the second lever 20 pivots, the tongue 230 may extend out or retract into the base 40. The second linkage 220 and the tongue 230 may be located on either side of the pivot hole 210, but this application is not limited thereto. The second lever 20 may be located at least partially inside the base 40. The second lever 20 may be generally formed as a flat plate. The second lever 20 may be made of metal, such as aluminum alloy, steel, iron, stainless steel, etc. Alternatively, the second lever 20 may be made of plastic.

[0130] In another embodiment, the second linkage 220 may be a protrusion extending along the second axis A2. The second linkage 220 may have external teeth extending circumferentially around the second axis A2.

[0131] See Figure 11 , Figure 32 and Figure 33The limiting member 30 may include a pivoting portion 310, a limiting portion 320, and a limiting release portion 330. The pivoting portion 310 is pivotally connected to the base 40. The limiting portion 320 and the limiting release portion 330 extend radially outward from the pivoting portion 310 (in a direction perpendicular to the fourth axis A4). The included angle between the limiting portion 320 and the limiting release portion 330 may be 90° or greater than 90°, but this application is not limited thereto. The limiting portion 320 may abut against the stop portion 114 of the base 110 of the first lever 10, thereby preventing the pivoting of the first lever 110. When the limiting member 30 pivots, the limiting release portion 330 extends out of the base 40 or retracts into the base 40. A reset member 340 may be provided between the limiting member 30 and the base 40. The reset member 340 tends to rotate the limiting member 30 to a position where the limiting release portion 330 extends out of the base 40. The reset element 340 may be a torsion spring, but this application is not limited thereto.

[0132] See Figure 11 and Figure 34 The unlocking mechanism 50 may include a pivot hole 510, an abutment portion 520, an unlocking arm 530, and a reset engagement slot 540. A pin 903 may pass through the pivot hole 510 of the unlocking mechanism 50 along a third axis A3 to pivotally connect the unlocking mechanism 50 to the positioning portion 1221 of the first lever 10. The abutment portion 520 and the unlocking arm 530 may be located on opposite sides of the pivot hole 510. The unlocking mechanism 50 may be partially located within the receiving slot 1222, such that a portion of the unlocking arm 530 is exposed outside the first lever 10. An unlocking portion 531 may be formed on the unlocking arm 530. The unlocking portion 531 may be configured to facilitate pressing by an operator's finger. The reset engagement slot 540 may be located on the underside of the unlocking arm 530. A reset member 550 may be present between the reset engagement slot 540 and the first lever 10. The reset member 550 can apply a pushing force to the unlocking arm 530, causing the unlocking arm 530 to tend to disengage from the receiving groove 1222. The reset member 550 can be a coil spring, but this application is not limited thereto. The abutment portion 520 may include a roller 521 and a roller mounting base 522. A pin 904 can pass through the roller 521, such that the roller 521 is rotatably mounted on the roller mounting base 522. The roller mounting base 522 may be offset from other parts of the unlocking mechanism 50 along the third axis A3, but this application is not limited thereto.

[0133] See Figure 11 as well as Figures 35 to 38The base 40 may have a receiving portion 410 and a contact portion 420. The receiving portion 410 may at least partially accommodate the first lever 10, the second lever 20, and the limiting member 30. The contact portion 420 may include a stop portion 421 and a guide surface 422 connected to each other. The stop portion 421 may be formed in the shape of a step. In other words, the stop portion 421 may be formed in an "L" shape to abut one end of the unlocking mechanism 50. The guide surface 422 may be formed in an arc shape. The arc shape may be centered on the first axis A1, but this application is not limited thereto. During the pivoting of the unlocking mechanism 50, one end of the unlocking mechanism 50 (specifically, the roller 521) remains in contact with the contact portion 420.

[0134] See Figure 7 and Figure 19 The unlocking mechanism 50 may have the following features: Figure 7 The locking position shown and as Figure 19 The unlocking position is shown. In this embodiment, the anti-accidental touch device 560 is pivotally connected to the other end of the unlocking mechanism (the end away from the abutment portion 520). The anti-accidental touch device 560 can prevent the pivoting of the first lever 10 by preventing the pivoting of the unlocking mechanism 50. In the locked position, one end of the unlocking mechanism 50 can abut against the base 40, and the anti-accidental touch device 560 can abut against the first lever 10 at the other end of the unlocking mechanism 50. Specifically, in the locked position, the abutment portion 520 of the unlocking mechanism 50 can abut against the stop portion 421 of the contact portion 420 of the base 40. In the unlocked position, the unlocking mechanism 50 pivots about the third axis A3, causing the abutment portion 520 to move away from the stop portion 421.

[0135] See Figure 7 and Figure 24 The first lever 10 can have the following characteristics: Figure 7 The first pivot position shown and as Figure 24 The second pivot position is shown. In the first pivot position, the first lever 10 is approximately horizontal, while in the second pivot position, the first lever 10 is approximately vertical. It should be noted that this application does not limit the orientation of the first lever 10 in the first and second pivot positions. When the first lever 10 moves from the first pivot position to the second pivot position, the tongue 230 of the second lever 20 will pivot by a certain angle.

[0136] See Figures 14 to 17The diagram shows the first lever 10 in a first pivot position and the unlocking mechanism 50 in a locked position, thus locking the first lever 10. At this time, the unlocking arm 530 of the unlocking mechanism 50 is a certain distance from the bottom of the receiving groove 1222, and both ends of the reset member 550 abut against the receiving groove 1222 and the unlocking arm 530, respectively. The anti-accidental touch device 560 abuts against the anti-accidental touch mating part 1223, preventing the unlocking arm 530 from moving towards the bottom of the receiving groove 1222. In this embodiment, the anti-accidental touch device 560 can be formed as a ring, specifically, a square ring. In another embodiment, the anti-accidental touch device 560 can have a sheet shape, a rod shape, or a bar shape. The anti-accidental touch device 560 is relative to the fifth axis A5 (see...). Figure 7 The mechanism is biased towards the unlocking arm 530, such that when the unlocking arm 530 is pressed, the anti-accidental touch device 560 abuts against the unlocking arm 530 without further pivoting, thereby ensuring that the anti-accidental touch device 560 can prevent the unlocking arm 530 from moving towards the bottom of the receiving groove 1222. Furthermore, the anti-accidental touch mating portion 1223 is formed as a recess to to some extent restrain the anti-accidental touch device 560 from undesirably disengaging from the anti-accidental touch mating portion 1223. That is, the anti-accidental touch mating portion 1223 can limit the movement of the anti-accidental touch device 560. The abutting portion 520 of the unlocking mechanism 50 (specifically, the roller 521) abuts against the stop portion 421, preventing the first lever 10 from pivoting to the second pivoting position. The locking tongue 230 is generally in a horizontal position, but this application is not limited thereto. The locking tongue 230 can engage a locking tongue hole (not shown) on a second object. The pin 906 is located at one end of the pivot limiting part 112, preventing the first lever 10 from pivoting away from the second pivot position. The limiting part 320 of the limiting member 30 remains in contact with the base 110 of the first lever 10 under the action of the resetting member 340, and the limiting release 330 does not protrude substantially from the base 40. The first linkage part 113 is located within the second linkage part 220, so that the teeth 1131 and 221 mesh.

[0137] See Figures 18 to 22 This diagram shows the first lever 10 in the first pivot position and the unlocking mechanism 50 in the unlocked position. When the unlocking mechanism 50 needs to be unlocked, the anti-accidental contact device 560 is first pivoted clockwise, disengaging it from the anti-accidental contact engagement part 1223. Then, the unlocking arm 530 is pressed downwards against the spring force of the reset member 550, causing the unlocking mechanism 50 to pivot counterclockwise until the unlocking arm 530 abuts against the bottom of the receiving groove 1222. During this process, the roller 521 is lifted upwards and no longer abuts against the stop part 421. Thus, the unlocking mechanism 50 no longer prevents the first lever 10 from pivoting to the second pivot position. It should be noted that the above directions (e.g., "clockwise," "counterclockwise," and "upward") are relative to... Figure 20 This is for illustrative purposes only and is not intended to limit the scope of the discussion.

[0138] Figures 23 to 27 The first lever 10 is shown in the second pivot position, and the unlocking mechanism 50 is in the locked position.

[0139] See Figures 18 to 27 When the unlocking mechanism 50 is in the unlocked position, the first lever 10 can pivot from the first pivot position to the second pivot position. During this process, the roller 521 rolls on the guide surface 422 and does not leave the guide surface 422. Because the roller 521 abuts against the guide surface 422, the unlocking mechanism 50 will remain in the unlocked position. When the roller 521 passes and leaves the guide surface 422, the reset member 550 pushes the unlocking mechanism 50 from the unlocked position to the locked position. The pin 906 moves within the pivot limit portion 112. The limit portion 320 remains against the base 110 of the first lever 10 and slides relative to the outer peripheral surface of the base 110.

[0140] The pivoting of the first lever 10 is transmitted to the second lever 20 through the engagement of the first linkage 113 and the second linkage 220, causing the second lever 20 to pivot along with the first lever 10. The pivoting of the second lever 20 allows the tongue 230 to push against the second object, thereby moving the first object, to which the puller 1 is fixed, away from the second object by a certain distance. The pivoting angle of the second lever 20 can be smaller than the pivoting angle of the first lever 10, allowing the force applied to the first lever 10 to be amplified and transmitted to the second lever 20. It should be noted that in this embodiment, the force applied to the first lever 10 is amplified in two stages before being transmitted to the tongue 230. The first stage of amplification occurs because the distance from the force applied to the first lever 10 to the first axis A1 is greater than the distance from the position of the latch hole on the second object to the second axis A2, and the second stage of amplification occurs because the pivoting angle of the first lever 10 is greater than the pivoting angle of the second lever 20. In another embodiment, the pivoting angle of the second lever 20 can be equal to or greater than the pivoting angle of the first lever 10.

[0141] See Figures 23 to 27When the first lever 10 reaches the second pivot position, the pin 906 moves to the other end of the pivot limit part 112, preventing the first lever 10 from pivoting further. The limit part 320 enters the stop part 114, preventing the first lever 10 from pivoting from the second pivot position to the first pivot position (the limit member 30 locks the first lever 10). That is, the first lever 10 is fixed at this time. When the limit part 320 enters the stop part 114, the limit release part 330 extends out of the base 40. When the first lever 10 reaches the second pivot position, the anti-accidental contact device 560 can pivot to the position abutting the anti-accidental contact engagement part 1223 due to gravity or manual operation by the operator. After this, the operator can further separate the first object from the second object by using the handle part 123 of the first lever 10.

[0142] When it is necessary to reinsert the first object into the second object, the puller 1... Figure 24 The second object is inserted in the state shown. During this process, the corresponding part on the second object pushes against the limit release part 330, causing the limit part 320 to move away from the stop part 114. When the limit part 320 moves away from the stop part 114, the limit member 30 no longer prevents the first lever 10 from pivoting from the second pivot position to the first pivot position. When the first object moves into place, the first lever 10 pivots from the second pivot position to the first pivot position. During this process, the first lever 10 drives the second lever 20 to pivot, and the tongue 230 abuts against the locking hole on the second object to bring the first object closer to the second object. It can be understood that during this process, the force applied by the operator to the first lever 10 is also amplified and transmitted to the tongue 230, becoming a force that brings the first object closer to the second object.

[0143] See Figure 12 and Figure 13 The diagram shows two extraction aids 1 that are mirror-symmetrical to each other. It is understood that more than one extraction aid 1 can be provided on the first object. These extraction aids 1 can constitute an extraction aid assembly. In this embodiment, the extraction aid assembly may include, for example... Figure 12 and Figure 13 The two extraction aids 1 shown are mirror-symmetrical to each other. In other embodiments, the extraction aid assembly may include two identical extraction aids 1. In other embodiments, the extraction aid assembly may include more than two extraction aids 1.

[0144] See Figures 39 to 41 This illustrates another embodiment of the pull-out aid 1 of this application. In this other embodiment, the anti-accidental contact device 560 is pivotally connected to the first lever 10. Specifically, the first lever 10 may have a receiving groove 124, the anti-accidental contact device 560 is pivotally connected within the receiving groove 124 of the first lever 10, and has a locking position that prevents the unlocking mechanism 50 from pivoting (e.g., Figure 39(as shown) and the unlocking position that allows the unlocking mechanism 50 to pivot (as shown) Figure 40 (As shown). The anti-accidental touch device 560 can prevent the unlocking mechanism 50 from pivoting by abutting the end away from the base 40. More specifically, the anti-accidental touch device 560 can be pivotally connected to the middle position of the receiving groove 124. The receiving groove 124 can have a shape that matches the anti-accidental touch device 560, such that the anti-accidental touch device 560 is aligned with the surface of the first lever 10 in both the locked and unlocked positions, thereby having a clean appearance and a flat surface.

[0145] A spacer 907 may be fitted onto the pin 901 to control the gap between the first lever 10 and the base 40, thereby preventing the first lever 10 from wobbling during pivoting. The spacer 907 may be a wave spring, but this application is not limited thereto. Similarly, a spacer 907 may also be provided on the pin 906 or other pins. Other aspects of this embodiment can be found in the previous embodiment, and will not be repeated here.

[0146] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0147] While this application has been described with reference to exemplary embodiments, the terminology used is descriptive and exemplary, and not restrictive. Because this application can be embodied in many forms without departing from its spirit and essence, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted most broadly within the scope defined by the claims. Therefore, all variations falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A traction aid (1), characterized in that, The extraction aid includes: Base (40); A first lever (10) is pivotally connected to the base along a first axis (A1); The second lever (20) is pivotally connected to the base along the second axis (A2) and is linked to the first lever; An unlocking mechanism (50) is movably disposed on the first lever to prevent or allow pivoting of the first lever. The unlocking mechanism is provided with an anti-accidental contact device (560) configured to hold the unlocking mechanism in a position that prevents pivoting of the first lever.

2. The extraction aid (1) according to claim 1, characterized in that, The unlocking mechanism is pivotally connected to the first lever along the third axis (A3), and the anti-accidental contact device prevents the first lever from pivoting by preventing the unlocking mechanism from pivoting.

3. The extraction aid (1) according to claim 2, characterized in that, The anti-accidental touch device has a first pivoting position that prevents the first lever from pivoting and a second pivoting position that allows the first lever to pivot.

4. The extraction aid (1) according to claim 3, characterized in that, The unlocking mechanism has a locked position and an unlocked position, wherein, in the locked position, one end of the unlocking mechanism abuts against the base, and the anti-accidental contact device abuts against the first lever at the other end of the unlocking mechanism.

5. The extraction aid (1) according to claim 4, characterized in that, The anti-accidental touch device is pivotally connected to the other end of the unlocking mechanism.

6. The extraction aid (1) according to claim 3, characterized in that, The unlocking mechanism has a locked position and an unlocked position, wherein, in the locked position, one end of the unlocking mechanism abuts against the base, and the anti-accidental contact device operably abuts against the other end of the unlocking mechanism.

7. The extraction aid (1) according to claim 6, characterized in that, The anti-accidental touch device is pivotally connected to the first lever.

8. The extraction aid (1) according to claim 4 or 6, characterized in that, The base has a contact portion (420), and during the pivoting of the unlocking mechanism, one end of the unlocking mechanism remains in contact with the contact portion.

9. The extraction aid (1) according to claim 8, characterized in that, The unlocking mechanism has a roller (521) at one end, and the contact portion includes a stop portion (421) and a guide surface (422), wherein, In the locked position, the roller abuts against the stop; and In the unlocked position, the roller rolls on the guide surface as the first lever pivots.

10. The extraction aid (1) according to claim 1, characterized in that, The first lever has an anti-accidental contact engagement part (1223), which limits the movement of the anti-accidental contact device.

11. The extraction aid (1) according to claim 4 or 6, characterized in that, The first lever has an unlocking mechanism receiving portion (122) to receive at least a portion of the unlocking mechanism, the unlocking mechanism having an unlocking portion (531) which protrudes from the first lever when the unlocking mechanism is in the locked position.

12. The extraction aid (1) according to claim 2, characterized in that, The pull-out aid includes a limiting member (30), and the first lever has a first pivot position and a second pivot position. When the first lever pivots to the first pivot position, the unlocking mechanism locks the first lever; and When the first lever pivots to the second pivot position, the limiting member locks the first lever.

13. The extraction aid (1) according to claim 12, characterized in that, The limiting member is pivotally connected to the base along the fourth axis (A4) and includes a limiting part (320) and a limiting release part (330), wherein the limiting part abuts against the first lever to lock the first lever, and the limiting release part is actuated to release the limiting part from locking the first lever.

14. The extraction aid (1) according to claim 1, characterized in that, The first lever has a first linkage (113), and the second lever has a second linkage (220). The first linkage and the second linkage engage, so that the first lever and the second lever are linked.

15. The extraction aid (1) according to claim 14, characterized in that, The first linkage has one of an external tooth and an internal tooth extending circumferentially around the first axis, and the second linkage has the other of an external tooth and an internal tooth extending circumferentially around the second axis.

16. The extraction aid (1) according to claim 14, characterized in that, The first linkage portion is formed as a protrusion along the first axis direction, and the second linkage portion is formed as a groove.

17. The extraction aid (1) according to claim 12, characterized in that, The first lever has a pivoting limit portion (112), and the base limits the pivoting range of the first lever between the first pivoting position and the second pivoting position by limiting the pivoting limit portion.

18. The extraction aid (1) according to claim 17, characterized in that, The pivoting limiting part is formed as an arc-shaped through hole with the first axis as the center.

19. The extraction aid (1) according to claim 13, characterized in that, The second lever has a tongue (230) that extends beyond the base, and the pivoting force applied to the first lever is amplified and transmitted to the tongue.

20. The extraction aid (1) according to claim 19, characterized in that, The puller is fixed to a first object, which is located inside a second object. When the first lever pivots from the first pivot position to the second pivot position, the tongue pushes against the second object to move the first object away from the second object.

21. The extraction aid (1) according to claim 20, characterized in that, The limit release part extends beyond the puller. When the first object moves into the second object, the second object actuates the limit release part to release the limit part from locking the first lever.

22. The extraction aid (1) according to claim 13, characterized in that, The anti-accidental touch device is pivotally connected to the unlocking mechanism along the fifth axis (A5).

23. The extraction aid (1) according to claim 22, characterized in that, The first axis, the second axis, the third axis, the fourth axis, and the fifth axis are parallel to each other.

24. The extraction aid (1) according to claim 1, characterized in that, The first axis is parallel to the second axis.

25. The extraction aid (1) according to claim 1, characterized in that, The anti-accidental touch device is formed in a ring shape.

26. A traction aid assembly comprising two traction aids according to any one of claims 1 to 25, wherein the two traction aids are mirror-symmetrical to each other.

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