Extraction aid and extraction aid assembly

Abstract

A bailer is provided, comprising a base mounted to a first object, a jaw at least partially housed in the base and rotatable relative to the base between a locked position and an unlocked position, and a first button operable to move between an initial position and an operative position, the first button in the operative position restraining the jaw in the locked position, wherein a rotational moment of the jaw toward the unlocked position maintains the first button in its initial position. A bailer assembly is also provided.

Description

Technical Field

[0001] This application relates to a pull-out aid, and more particularly to a pull-out aid assembly capable of withstanding large loads. This application also relates to a pull-out aid assembly including the pull-out aid. Background Technology

[0002] A puller is a device that assists a user in inserting a first object into a second object, or in pulling a second object out of a second object.

[0003] One such application is with servers. Server racks are devices used to place and secure one or more servers. In some cases, a puller is needed to lock storage devices to or unlock them from the server. On the other hand, because the connection between the storage device and the server is tight, considerable force is required to insert or remove the storage device from the server. Furthermore, storage devices are typically elongated and inserted into the server, making it difficult for users to grip them. Therefore, a puller is needed to insert or remove the storage device from the server.

[0004] In some usage environments, there is a significant engagement load between the first and second objects. For example, the first object may be engaged with the second object via a tight-fitting plug-in structure. In such cases, it is expected that the pull-out aid can withstand the large load. Therefore, a series of improvements to the structure of the pull-out aid are necessary. Utility Model Content

[0005] This application provides a pull-out aid, comprising: a base, mounted to a first object; a pawl, at least partially received in the base and rotatable relative to the base between a locked position and an unlocked position; and a first button operable to move between an initial position and an operating position, wherein the first button in the operating position restricts the pawl in the locked position, and wherein a rotational torque of the pawl toward the unlocked position holds the first button in its initial position.

[0006] In one embodiment, the pull-out aid further includes: a first trigger connected to the first button, wherein when the first button is in the initial position, the first trigger can restrict the claw to the locked position, and when the first button is in the operating position, the first trigger is driven by the first button to release the claw.

[0007] In one embodiment, the first button is pivotally connected to the base, and the first trigger is pivotally connected to the first button. An obtuse angle is formed between the pivot axis of the first button, the pivot axis of the first trigger, and the contact point of the first trigger acting on the claw, the obtuse angle facing the direction in which the first button is operated.

[0008] In one embodiment, the pull-out aid includes a first elastic element, which is either a torsion spring disposed between the first button and the first trigger, or a leaf spring disposed between the base and the first trigger. The first elastic element is configured to bias the first trigger toward a position that restricts the claw.

[0009] In one embodiment, the pull-out aid includes a first roller pivotally connected to the end of the first trigger remote from the first button, and the first trigger restrains the claw by abutting against the claw via the first roller.

[0010] In one embodiment, the first button is generally V-shaped and includes a first branch and a second branch, both extending from the pivot axis of the first button, wherein the first branch is pivotally connected to the first trigger and the second branch can be operated from outside the puller.

[0011] In one embodiment, the pull-out aid includes a second elastic element disposed between the second branch and the base to bias the first button toward the initial position.

[0012] In one embodiment, the pawl includes a first foot and a second foot. When the pawl rotates between the locked position and the unlocked position, the first foot abuts against a second object or a frame mounted to the second object, such that the first object is inserted into or ejected from the second object. When the pawl is in the locked position, the first trigger abuts against the second foot to restrict the pawl to the locked position.

[0013] In one embodiment, the first foot and the second foot form an angle; the pawl includes a pawl locking portion, which is formed as a recess at the end of the second foot away from the first foot, and the first trigger abuts against the pawl locking portion.

[0014] In one embodiment, the pull-out aid includes a second roller pivotally connected to the end of the first foot remote from the second foot, and the first foot abuts against the second object or the frame via the second roller.

[0015] In one embodiment, the puller includes a handle and a second trigger; the handle is pivotally connected to the base and can rotate between an open position and a closed position, and the handle can drive the chuck to rotate.

[0016] In one embodiment, the second trigger is pivotally connected to the base, and when the puller is disengaged from the second object or from the frame mounted to the second object, the second trigger restricts the handle to the open position and / or the claw to the unlocked position; when the puller is engaged with the second object or the frame, the second trigger is driven by the second object or the frame to release the handle and / or the claw.

[0017] In one embodiment, the puller further includes an actuator, wherein both the claw and the actuator are fan-shaped and engage with each other via a gear structure, and the handle can drive the claw via the actuator.

[0018] Another pull-out aid provided in this application includes: a base; a claw or a second claw, at least partially received in the base and rotatable relative to the base between a locked position and an unlocked position;

[0019] A handle, pivotally connected to the base and rotatable between an open and a closed position; and

[0020] The second button is connected to the handle and can be operated to move between an initial position and an operating position. When the second button is in the initial position, the handle engages with the pawl or the second pawl to drive the pawl or the second pawl to rotate. When the second button is in the operating position, the handle disengages from the pawl or the second pawl.

[0021] In one embodiment, when the handle is in the open position and disengaged from the chuck or the second chuck, the chuck or the second chuck engages with the second object or is mounted to the frame of the second object.

[0022] In one embodiment, the second button is at least partially housed in the handle, and the second button in the initial position is partially exposed outside the handle, with a fourth elastic element provided between the second button and the handle to bias the second button toward the initial position.

[0023] In one embodiment, the second button includes an actuating portion extending toward the pawl or the second pawl; the pawl engages with an actuator, and a protruding second locking portion is formed at the outer periphery of the actuator, the actuating portion abutting against the second locking portion to drive the pawl via the actuator; or a protruding pawl locking portion is formed at the outer periphery of the second pawl, the actuating portion abutting against the pawl locking portion to drive the second pawl.

[0024] This application provides an extraction aid assembly, comprising: an extraction aid according to this application; and a frame, mounted to a second object, wherein the claws are capable of engaging or disengaging from the frame. Attached Figure Description

[0025] In the following description, embodiments of this application will be further described in detail with reference to the accompanying drawings, in which:

[0026] Figures 1A to 1F These are, respectively, the front view, rear view, left view, right view, top view, and bottom view of the pull-out aid according to the first embodiment of this application;

[0027] Figures 1G to 1J These are three-dimensional views of the pull-out aid from different angles;

[0028] Figure 2 This is an exploded perspective view of the extraction aid;

[0029] Figures 3A to 3D These are three-dimensional views of the base of the pull-out aid from different angles;

[0030] Figure 4A and Figure 4B This is a 3D view of the claws of the puller from different angles;

[0031] Figure 4C The chuck is shown with the second roller mounted on it;

[0032] Figure 5A and Figure 5B These are three-dimensional views of the handle of the pull-out aid from different angles;

[0033] Figure 6A and Figure 6B These are three-dimensional views of the actuator of the pull-out aid from different angles;

[0034] Figure 7A and Figure 7B These are three-dimensional views of the first button of the pull-out aid from different angles;

[0035] Figure 8 This is a three-dimensional view of the first trigger of the pull-out device;

[0036] Figure 9 This is a 3D view of the second button of the pull-out aid;

[0037] Figure 10A and Figure 10B These are three-dimensional views of the second trigger of the pull-out device from different angles;

[0038] Figure 11A A perspective view of the puller attached to the frame is shown, with the handle in the closed position and the first button in the pop-up position. Figure 11B A partial bottom view of the pull-out aid is shown;

[0039] Figures 11C to 11F They are along Figure 11B A partial sectional view taken from lines C1-C1, D1-D1, E1-E1, and F1-F1;

[0040] Figure 11G Another embodiment of the first elastic element is shown;

[0041] Figure 11H and Figure 11I Showing the position Figure 11A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0042] Figure 11J Showing the position Figure 11A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 11K A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0043] Figure 12A A perspective view of the puller in the engaged position is shown, with the handle in the closed position and the first button in the pressed position. Figure 12B A partial bottom view of the pull-out aid is shown;

[0044] Figures 12C to 12F They are along Figure 12B A partial sectional view taken from lines C2-C2, D2-D2, E2-E2, and F2-F2;

[0045] Figure 12G and Figure 12H Showing the position Figure 12A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0046] Figure 12I Showing the position Figure 12A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 12J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0047] Figure 13A A perspective view of the puller in the engaged position is shown, with the handle moving from the closed position to the open position. Figure 13B A partial bottom view of the pull-out aid is shown;

[0048] Figures 13C to 13F They are along Figure 13B A partial sectional view taken from lines C3-C3, D3-D3, E3-E3, and F3-F3;

[0049] Figure 13G and Figure 13H Showing the position Figure 13A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0050] Figure 13I Showing the position Figure 13A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 13J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0051] Figure 14A A perspective view of the pull-out aid is shown between the disengaged and engaged positions, with the handle in the open position. Figure 14B A partial bottom view of the pull-out aid is shown;

[0052] Figures 14C to 14F They are along Figure 14B A partial sectional view taken from lines C4-C4, D4-D4, E4-E4, and F4-F4;

[0053] Figure 14G and Figure 14H Showing the position Figure 14A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0054] Figure 14I Showing the position Figure 14A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 14J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0055] Figure 15A A perspective view of the pull-out device in the disengaged position is shown, with the handle in the open position. Figure 15B A partial bottom view of the pull-out aid is shown;

[0056] Figures 15C to 15F They are along Figure 15B A partial sectional view taken from lines C5-C5, D5-D5, E5-E5, and F5-F5;

[0057] Figure 15G and Figure 15H Showing the position Figure 15A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0058] Figure 15I Showing the position Figure 15A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 15J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0059] Figure 16A A perspective view of the pull-out device in the engaged position is shown, with the handle in the closed position and the second button in the pressed position. Figure 16B A partial bottom view of the pull-out aid is shown;

[0060] Figures 16C to 16F They are along Figure 16B A partial sectional view taken from lines C6-C6, D6-D6, E6-E6, and F6-F6;

[0061] Figure 16G and Figure 16H Showing the position Figure 16A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0062] Figure 16I Showing the position Figure 16A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 16J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0063] Figure 17A A perspective view of the pull-out aid in the engaged position is shown, with the handle in the open position. Figure 17B A partial bottom view of the pull-out aid is shown;

[0064] Figures 17C to 17F They are along Figure 17B A partial sectional view taken from lines C7-C7, D7-D7, E7-E7, and F7-F7;

[0065] Figure 17G and Figure 17H Showing the position Figure 17A A perspective view of the first button, first trigger, first elastic element, and first roller of the pull-out aid in the indicated state from different angles;

[0066] Figure 17I Showing the position Figure 17A A perspective view of the first button, first trigger, first elastic element, first roller, chuck, actuator, second button, and fourth elastic element of the pull-out aid in the indicated state. Figure 17J A perspective view of the puller's handle, second button, actuator, and chuck is shown.

[0067] Figures 18A to 18F The front view, rear view, left view, right view, top view, and bottom view of the pull-out aid according to the second embodiment of this application are shown respectively.

[0068] Figure 19 This is an exploded perspective view of the extraction aid;

[0069] Figure 20A The image shows a bottom view of the puller in the engaged position, with the handle in the closed position and the second button in the pop-up position. Figure 20B It is along Figure 20A A sectional view taken by line A1-A1 in the diagram;

[0070] Figure 21A The image shows a bottom view of the puller in the engaged position, with the handle in the closed position and the second button in the pressed position. Figure 21B It is along Figure 21A A sectional view taken by line A2-A2 in the diagram;

[0071] Figure 22A A perspective view of the puller in the engaged position is shown, with the handle in the closed position and the second button in the pop-up position. Figure 22B yes Figure 22A A magnified view of the boxed portion;

[0072] Figure 23A A perspective view of the puller is shown between the engaged and disengaged positions, with the handle between the closed and open positions and the second button in the pop-up position. Figure 23B yes Figure 23A A magnified view of the boxed portion;

[0073] Figure 24A A perspective view of the pull-out device in the disengaged position is shown, with the handle in the open position and the second button in the pop-up position. Figure 24B yes Figure 24A A magnified view of the boxed portion;

[0074] Figure 25A A perspective view of the puller in the engaged position is shown, with the handle between the closed and open positions and the second button in the pressed position. Figure 25B yes Figure 25A A magnified view of the boxed portion;

[0075] Figure 26A A perspective view of the puller in the engaged position is shown, with the handle in the open position and the second button in the pressed position. Figure 26B yes Figure 26A A magnified view of the boxed portion.

[0076] List of reference numerals

[0077] 100 Pull-out aids

[0078] 110 Base

[0079] 111 Installation Department

[0080] 111a sidewall

[0081] 111b Intermediate wall

[0082] 112 Reception Section

[0083] 113 Third Hole

[0084] 114 Gap

[0085] 115 Fifth Hole

[0086] 116 Sixth Hole

[0087] 117 Seventh Hole

[0088] 118 First Window

[0089] 118a convex surface

[0090] 119 Second Window

[0091] 120 chuck

[0092] 121 First foot

[0093] 122 Second foot

[0094] 123 Claw locking part

[0095] 124 Extension

[0096] 125 Claw Joint

[0097] 129 Claw Shaft Hole

[0098] 130 Handle

[0099] 131 Head

[0100] 132 pole section

[0101] 133 Limiting section

[0102] 134 Handle Guide Slot

[0103] 135 handle wall

[0104] 136 Second button receiving part

[0105] 137 Fourth Hole

[0106] 138 Handle locking part

[0107] 139 Handle shaft hole 140 Actuator

[0108] 141 First locking part (handle protrusion locking part)

[0109] 142 Second locking part (second button locking part)

[0110] 143 Third locking part (second trigger locking part)

[0111] 144 Actuator engagement

[0112] 145 Actuator guide slot

[0113] 149 Actuator shaft hole 150 First button

[0114] 151 First Branch

[0115] 151a First elastic element abutment part

[0116] 152 Second Branch

[0117] 152a Second elastic member abutment part

[0118] 153 First Hole

[0119] 154 First button shaft hole; 155 Second button

[0120] 156. Motivation Department

[0121] 157 Operations Department

[0122] 158 Second elastic element receiving part

[0123] 159 Pin engagement hole 160 First trigger

[0124] 161 First trigger shaft hole

[0125] 162 trigger end

[0126] 163 Shoulders

[0127] 165 Second trigger

[0128] 166 First Trigger Section

[0129] 167 Second Trigger Section

[0130] 169 Second trigger shaft hole

[0131] 170 First Roller

[0132] 175 Second Roller

[0133] 181 First elastic element (first trigger elastic element)

[0134] 182 Second elastic element (first button elastic element)

[0135] 183 Third elastic element (second trigger elastic element)

[0136] 184 Fourth elastic element (second button elastic element)

[0137] 191 First pin (first trigger pin)

[0138] 192 Second pin (first roller pin)

[0139] 193 Third pin (second trigger pin)

[0140] 194 Fourth pin (Second button pin)

[0141] 195 Fifth pin (first button pin)

[0142] 196 Sixth pin (actuator rotating pin, handle rotating pin)

[0143] 197 Seventh Pin (Claw Rotary Pin)

[0144] 200 frames

[0145] 210 First Bearing Section

[0146] 220 Second Bearing Section

[0147] 230 accommodating slot

[0148] 300 First item

[0149] 400 Second item

[0150] 500 Second Claw

[0151] 501 First foot

[0152] 502 Second foot

[0153] 503 Claw locking part

[0154] 509 Claw Shaft Hole

[0155] R1 Pull-out direction

[0156] R2 Pull-out device insertion direction

[0157] R3 handle opening direction

[0158] R4 Handle Close Direction

[0159] R5 chuck locks direction

[0160] R6 Claw Unlock Direction

[0161] R7 First trigger stops the direction

[0162] R8 First trigger release direction Detailed Implementation

[0163] While this invention has been illustrated and described with reference to specific embodiments, it should not be limited to the details shown. Rather, various modifications to these details may be made within the scope of equivalents of the claims without departing from the invention.

[0164] The descriptions of directions such as "front", "back", "up" and "down" in this article are for ease of understanding only. This utility model is not limited to these directions, but can be adjusted according to the actual situation.

[0165] Reference Figures 1A to 2 The general description is based on a first embodiment of the extraction aid 100 of this application. The extraction aid 100 includes a base 110, a claw 120, a handle 130, an actuator 140, a first button 150, a second button 155, a first trigger 160, a second trigger 165, a first roller 170, a first elastic element 181, a third elastic element 183, a fourth elastic element 184, a first pin 191, a second pin 192, a third pin 193, a fourth pin 194, a fifth pin 195, a sixth pin 196, and a seventh pin 197.

[0166] The base 110 carries other components of the pull-out aid 100 and is mounted to the first object 300 (see [link]). Figure 11A The first object 300 is, for example, a circuit board or a tray, but is not limited thereto. The base 110 is fixed to the first object 300, thus enabling the first object 300 to move.

[0167] The pawl 120 is at least partially received in the base 110 and is rotatable relative to the base 110 between a locked position and an unlocked position. The pawl 120 can be operated to engage or disengage from the frame 200 (see [link]). Figure 11A The frame 200 is mounted to a second object (not shown), such as a rack or server. Therefore, the claw 120 allows the first object 300 to engage or disengage from the second object. The frame 200 and the pull-out aid 100 are collectively referred to as the pull-out aid 100 assembly.

[0168] In some applications, a compressive load is required between the first object 300 and the second object 400, for example, where there are pressure-requiring contacts or sealing structures (not shown). For this purpose, the claw 120 provides compressive or ejective force by abutting against the frame 200 during rotation, and the puller 100 is structured to facilitate the stable provision of compressive force by the claw 120, as will be detailed later.

[0169] For ease of description, the direction of the rotation axis of the gripper 120 is referred to as the axial direction, the direction in which the puller 100 engages or disengages from the frame 200 is referred to as the longitudinal direction, and the direction intersecting the longitudinal direction is referred to as the transverse direction. These directions do not limit the arrangement of the puller 100, and the axial, longitudinal, and transverse directions do not necessarily need to be strictly perpendicular to each other. The rotation axes of all components in this application extend along the axial direction, which is beneficial for the compact structure of the puller; however, this is not mandatory.

[0170] Actuator 140 is pivotally connected to base 110, engages with pawl 120, and rotates with pawl 120. Handle 130 is pivotally connected to base 110 and can selectively engage actuator 140 to rotate pawl 120 via actuator 140. In this embodiment, pawl 120, actuator 140, and handle 130 all rotate about sixth pin 196 to simplify the structure of puller 100. In other embodiments, pawl 120, actuator 140, and handle 130 can rotate about different axes or can rotate relative to base 110 via mechanisms such as slide rails. Handle 130 can be in an open position relative to base 110 (see...). Figure 14A ) and closing position (see Figure 11A The open and closed positions can rotate between each other. The angle between the open and closed positions can be approximately 90°, but is not limited to this. Depending on the usage environment, the angle between the open and closed positions can be approximately 30°, approximately 60°, approximately 120°, approximately 150°, approximately 180°, etc.

[0171] A first button 150 is at least partially housed in the base 110 and serves to hold the position of the pawl 120. Specifically, the first button 150 is pivotally connected to the base 110 via a first pin 191 and is operable to move between an initial position and an operating position (or a pressed position). The first button 150 can be operated from outside the base 110, thereby preventing or allowing rotation of the pawl 120. A first trigger 160 is pivotally connected to the first button 150 and abuts against the pawl 120 to prevent rotation of the pawl 120. Therefore, the first button 150 controls the rotation of the pawl 120 via the first trigger 160.

[0172] The first roller 170 is pivotally connected to the end of the first trigger 160 away from the first button 150. The first trigger 160 abuts against the pawl 120 via the first roller 170 to reduce friction.

[0173] The second trigger 165 is pivotally connected to the base 110 and serves to hold the claw 120 and handle 130 in position. When the puller 100 disengages from the frame 200, the second trigger 165 retains the handle 130 in the open position and / or retains the claw 120 in the unlocked position. When the puller 100 engages with the frame 200, the second trigger 165 is actuated by the second object 400 or the frame 200 to release the handle 130 and / or the claw 120.

[0174] The second button 155 is connected to the handle 130 and is used to control the engagement between the handle 130 and the actuator 140. Specifically, the second button 155 can be operated to move between an initial position and an operating position. When the second button 155 is in the initial position, the handle 130 engages with the jaw 120 to drive rotation. When the second button 155 is in the operating position, the handle 130 disengages from the jaw 120 and rotates independently of the jaw 120.

[0175] The first elastic element 181 is either a torsion spring disposed between the first button 150 and the first trigger 160, or a leaf spring disposed between the base 110 and the first trigger 160 (see...). Figure 11G The first elastic element 181 is configured to bias the first trigger 160 toward the limiting claw 120. The second elastic element 182 is disposed between the first button 150 and the base 110, and biases the first button 150 toward its initial position. The third elastic element 183 is disposed between the second trigger 165 and the base 110, and biases the second trigger 165 toward the limiting claw 120 or the handle 130. The fourth elastic element 184 is disposed between the second button 155 and the handle 130, and biases the second button 155 toward its initial position.

[0176] The specific structure and operation of the first button 150, the second button 155, the first trigger 160, and the second trigger 165 will be described in detail later.

[0177] A first pin 191 is disposed on the first button 150 and serves as the rotation axis of the first trigger 160. A second pin 192 is disposed on the first trigger 160 and serves as the rotation axis of the first roller 170. A third pin 193 is disposed on the base 110 and serves as the rotation axis of the second trigger 165. A fourth pin 194 is disposed on the handle 130 and serves as the sliding pin of the second button 155. A fifth pin 195 is disposed on the base 110 and serves as the rotation axis of the first button 150. A sixth pin 196 is disposed on the base 110 and serves as the rotation axis of both the actuator 140 and the handle 130, meaning that both the actuator 140 and the handle 130 rotate around the sixth pin 196. A seventh pin 197 is disposed on the base 110 and serves as the rotating pin of the pawl 120, meaning that the pawl 120 rotates around the seventh pin 197. In this embodiment, each pin extends axially, but this is not mandatory.

[0178] Reference Figures 3A to 3D The specific structure of the base 110 is described. The base 110 includes a mounting part 111, a receiving part 112, a third hole 113, a notch 114, a fifth hole 115, a sixth hole 116, a seventh hole 117, a first window 118, and a second window 119.

[0179] The receiving portion 112 is generally rectangular and box-shaped, and has an internal receiving space to receive other components of the pull-out aid 100. The mounting portion 111 is plate-shaped and extends longitudinally outward from one longitudinal end of the receiving portion 112. The mounting portion 111 is the portion used to fix the base 110 to the first object 300, so its shape and position can be changed according to the form of the first object 300.

[0180] The receiving portion 112 includes two sidewalls 111a that are axially opposite to each other, and an intermediate wall 111b located between the two sidewalls 111a. The two sidewalls 111a have different areas and are respectively provided with a third hole 113, a sixth hole 116, and a seventh hole 117 at corresponding positions. The third hole 113, the sixth hole 116, and the seventh hole 117 are used to connect a third pin 193, a sixth pin 196, and a seventh pin 197, respectively, that is, the third pin 193, the sixth pin 196, and the seventh pin 197 are all located between the two sidewalls 111a. The intermediate wall 111b and one sidewall 111a are respectively provided with a fifth hole 115 at corresponding positions. The fifth hole 115 is used to connect a fifth pin 195, that is, the fifth pin 195 is located between the intermediate wall 111b and one sidewall 111a. The third hole 113, the sixth hole 116, and the seventh hole 117 are located at one end of the receiving part 112 near the insertion direction, and the fifth hole 115 is located at one end of the receiving part 112 near the ejection direction.

[0181] The first window 118 is located at the longitudinal end of the receiving portion 112 opposite to the mounting portion 111. (Refer to reference...) Figure 11AThe mounting portion 111 is located at the insertion-facing end of the base 110, while the first window 118 is located at the ejection-facing (or pull-out-facing) end of the base 110. The first button 150 is exposed to the outside of the base 110 through the first window 118. In use, the ejection-facing end of the base 110 is the user-facing end, so the user can operate the first button 150 through the first window 118. The base 110 has a boss 118a near the first window 118 for the second elastic member 182 to abut (see...). Figure 11D ).

[0182] The second window 119 is disposed at the end of a sidewall 111a near the insertion direction, so that the second trigger 165 is exposed to the outside of the base 110 through the second window 119. This sidewall 111a is adjacent to the sidewall 200, so that when the puller 100 engages with the frame 200, the second trigger 165 abuts against the frame 200 through the second window 119 (see [link to relevant documentation]). Figure 11F The notch 114 is located at the edge of the second window 119 to allow for the installation of the third elastic element 183.

[0183] Reference Figure 4A and Figure 4B The specific structure of the chuck 120 is described. The chuck 120 includes a first foot 121, a second foot 122, a chuck locking part 123, an extension part 124, a chuck engaging part 125, and a chuck shaft hole 129.

[0184] The first foot 121 and the second foot 122 are generally plate-shaped, and the first foot 121 and the second foot 122 form an angle, for example, a 90° angle, but not limited thereto. A chuck shaft hole 129 is provided at the connection between the first foot 121 and the second foot 122. A seventh pin 197 passes through the chuck shaft hole 129 (see reference). Figure 11C This causes the pawl 120 to rotate relative to the base 110 around the seventh pin 197. (Refer to reference...) Figure 13C , Figure 14C , Figure 15C When the pawl 120 rotates between the locked and unlocked positions, the first foot 121 abuts against the frame 200, causing the first object 300 to be inserted into or ejected from the second object 400.

[0185] An extension 124 is formed at the end of the second foot 122 away from the first foot 121 and extends in a direction substantially perpendicular to the second foot 122. A pawl-like locking portion 123 is formed between the extension 124 and the second foot 122 and is formed as a recess at the end of the second foot 122 away from the first foot 121. (Refer to reference) Figure 11CWhen the pawl 120 is in the locked position, the first trigger 160 abuts against the pawl locking part 123 to prevent the pawl 120 from rotating until it is unlocked.

[0186] Combined with reference Figure 11E and Figure 11J The pawl engagement 125 engages with the actuator engagement 144 of the actuator 140, causing the actuator 140 to rotate the pawl 120. In this embodiment, the pawl engagement 125 is a sector-shaped gear and is axially adjacent to the first foot 121 and the second foot 122. The sector angle of the pawl engagement 125 may be approximately the same as the angle between the first foot 121 and the second foot 122, but is not limited thereto. The pawl engagement 125 has an internal recess. The actuator engagement 144 is embedded in the internal recess of the pawl engagement 125, thereby stably engaging with the pawl engagement 125 and reducing the space occupied. In other embodiments, the pawl engagement 125 may have different forms, such as plate-shaped or rod-shaped, and may be engaged with the actuator 140 by welding, bonding, or other methods. (Referring to reference...) Figure 11J In this embodiment, the actuator 140 and the pawl 120 are eccentrically positioned, meaning the rotation center of the actuator 140 (sixth pin 196) is offset from the rotation center of the pawl 120 (seventh pin 197). The rotation center of the actuator 140 (sixth pin 196) is closer to the actuator engagement portion 144 and the pawl engagement portion 125 than the rotation center of the pawl 120 (seventh pin 197), resulting in a smaller rotation radius for the actuator 140 compared to the pawl 120. Therefore, the lever arm of the actuator 140 is smaller than that of the pawl 120, allowing the actuator 140 to amplify the force of the handle 130. The actuator engagement portion 144 and the pawl engagement portion 125 are designed to maintain engagement even when rotated eccentrically, for example, in the form of a gear and toothed teeth as in this embodiment. In other embodiments, they may also be configured as a cam or other engagement mechanism. It should be understood that in other embodiments, actuator 140 may be omitted, and handle 130 may be configured to directly engage with jaw 120, such that handle 130 and jaw 120 rotate coaxially to drive jaw 120.

[0187] exist Figure 4A and Figure 4B In one embodiment, the first foot 121 is cylindrical. Figure 4C Another embodiment of the chuck 120 is described, wherein a seventh pin 197 is provided in the first foot 121, and a second roller 175 is disposed in the first foot 121 and rotates about the seventh pin 197. The first foot 121 abuts against the first support portion 210 and the second support portion 220 of the frame 200 via the second roller 175, thereby reducing resistance.

[0188] Reference Figure 5A and Figure 5BThe specific structure of the handle 130 is described. The handle 130 includes a head 131, a rod 132, a limiting part 133, a handle guide groove 134, a second button receiving part 136, a fourth hole 137, a handle locking part 138, and a handle shaft hole 139.

[0189] The lever 132 is the part operated by the user. In this embodiment, it is straight, but its form can be changed according to the usage environment, such as a crank or a hand crank. The head 131 is disc-shaped, with a handle shaft hole 139 at its center. A handle guide groove 134 is provided in the head 131 and extends around the handle shaft hole 139 by an arc, for example, 90°, but is not limited thereto. (Refer to reference) Figure 11E The sixth pin 196 passes through the handle shaft hole 139, allowing the handle 130 to rotate relative to the base 110 about the sixth pin 196. The seventh pin 197 passes through the handle guide groove 134 to guide the rotation of the handle 130 and also helps to limit the rotation range of the handle 130.

[0190] Both the limiting part 133 and the handle locking part 138 are located around the head 131. The limiting part 133 is a block-shaped protrusion along the axial direction, as shown in the reference. Figure 11E The limiting portion 133 abuts against the first locking portion 141 of the actuator 140 to limit the relative rotation range between the handle 130 and the actuator 140. The handle locking portion 138 is recessed and circumferentially spaced from the limiting portion 133. (Refer to reference) Figure 15F The second trigger 167 of the second trigger 165 can abut against the handle locking part 138 to lock the handle 130 in the open position.

[0191] The handle wall 135 is located near the connection between the rod 132 and the head 131, and is plate-shaped and approximately parallel to the rod 132. Thus, a second button receiving portion 136 is formed between the handle wall 135 and the rod 132. (Refer to reference) Figure 11K One side of the second button receiving portion 136 opens outwards, and the second button 155 is partially received in the second button receiving portion 136 and can be operated from outside the handle 130. The handle wall 135 and the rod portion 132 each have an elongated fourth hole 137 at corresponding positions; in other embodiments, the fourth hole 137 may also be arc-shaped. (Refer to reference...) Figure 11E and Figure 11F The fourth pin 194 passes through the fourth hole 137 and is installed on the second button 155, causing the second button 155 to move along the extension direction of the fourth hole 137. The fourth elastic member 184 is housed in the second button receiving portion 136 and biases the second button 155 toward the pop-out position, that is, toward the position extending out of the second button receiving portion 136.

[0192] Reference Figure 6A and Figure 6BThe specific structure of actuator 140 is described. Actuator 140 includes a first locking part 141, a second locking part 142, a third locking part 143, an actuator engagement part 144, an actuator guide groove 145, and an actuator shaft hole 149.

[0193] The actuator 140 is disc-shaped, specifically fan-shaped in this embodiment, but is not limited thereto. An actuator shaft hole 149 is provided at the center of the actuator 140, and a sixth pin 196 is inserted into the actuator shaft hole 149, causing the actuator 140 to rotate relative to the base 110 about the sixth pin 196. An actuator guide groove 145 extends curvedly around the actuator shaft hole 149, and a seventh pin 197 is inserted into the actuator guide groove 145 to assist in inducing the rotation of the actuator 140 and limit its rotation range.

[0194] The first locking part 141, the second locking part 142, and the third locking part 143 are located on the periphery of the actuator 140 and are spaced apart from each other along the rotation direction. (Refer to reference...) Figure 11E The first locking portion 141 is protruding and abuts against the limiting portion 133 of the handle 130 to limit the relative rotation range between the handle 130 and the actuator 140. The second locking portion 142 is recessed, and the actuating portion 156 of the second button 155 abuts against the second locking portion 142, allowing the handle 130 to drive the actuator 140 to rotate. The third locking portion 143 is recessed and can be aligned with the handle locking portion 138 of the handle 130. (See reference...) Figure 15F The actuator 140 rotates to the open position as the handle 130 rotates, and the third locking part 143 is aligned with the handle locking part 138 and both are locked by the second trigger part 167 of the second trigger 165.

[0195] The actuator engagement portion 144 is in the form of a gear, but is not limited to this, as long as it can engage with the pawl engagement portion 125 and drive the pawl 120 to rotate together. The actuator engagement portion 144 can be located in different axial positions relative to the first locking portion 141, the second locking portion 142, and the third locking portion 143, thereby improving space utilization.

[0196] Reference Figure 7A and Figure 7B The specific structure of the first button 150 is described. The first button 150 includes a first branch 151, a second branch 152, a first hole 153, and a first button shaft hole 154.

[0197] The fifth pin 195 passes through the first button shaft hole 154, allowing the first button 150 to rotate relative to the base 110 about the fifth pin 195. The first branch 151 and the second branch 152 are connected to each other at one end, making the first button 150 approximately V-shaped. The first button shaft hole 154 is located at the junction of the first branch 151 and the second branch 152. The first branch 151 is forked and has a first hole 153 for pivotal connection to the first trigger 160, as detailed below. A first elastic abutment 151a, such as a groove, is provided at the junction of the two branches of the first branch 151 for the foot of the first elastic member 181 to abut against. The first elastic member 181 biases the first trigger 160 toward a locked position, as detailed below.

[0198] The second branch 152 can be operated from outside the puller 100, for example, by being pressed to rotate the first button 150. The second branch 152 has a second elastic abutment 152a, for example a circular protrusion, on the side facing the first branch 151, for the second elastic member 182 to abut against. The second elastic member 182 biases the first button 150 toward an initial position, as will be described in detail below. Therefore, when the first button 150 is operated, it rotates about the fifth pin 195 to the operating position, causing the second branch 152 to actuate the first trigger 160.

[0199] Reference Figure 8 The specific structure of the first trigger 160 is described. The first trigger 160 includes a first trigger shaft hole 161, a trigger end 162, and a shoulder 163.

[0200] The first trigger shaft hole 161 and the trigger end 162 are located at opposite ends of the first trigger 160. A first pin 191 passes through the first trigger shaft hole 161, causing the first trigger 160 to rotate relative to the first button 150 about the first pin 191. The trigger end 162 is forked and includes two opposing holes, and a first roller 170 is pivotally connected between the two holes of the trigger end 162. (Refer to reference...) Figure 11D and Figure 11J The first roller 170 provides rolling contact between the trigger end 162 and the pawl locking portion 123, thereby reducing friction. The shoulder portion 163 is disposed between the first trigger shaft hole 161 and the trigger end 162 for the first elastic member 181 to abut against.

[0201] Reference Figure 9 The specific structure of the second button 155 is described. The second button 155 includes an actuating part 156, an operating part 157, a second elastic member 182 receiving part 112, and a pin engagement hole 159.

[0202] The second button 155 is generally plate-shaped. The actuating part 156 and the operating part 157 are located at opposite ends of the second button 155. (Refer to reference) Figure 11KWhen the second button 155 is in the pop-up position, the operating part 157 is exposed outside the handle 130 for operation. (Refer to reference...) Figure 11E The actuating portion 156 protrudes laterally to engage with the second locking portion 142 of the actuator 140. The second elastic member 182 receiving portion 112 is provided at the end opposite to the operating portion 157 and is recessed to receive the second elastic member 182.

[0203] Reference Figure 10A and Figure 10B The specific structure of the second trigger 165 is described below. The second trigger 165 includes a first trigger portion 166, a second trigger portion 167, and a second trigger shaft hole 169. The first trigger portion 166 and the second trigger portion 167 are opposite to each other and each forms a general triangle. The second trigger shaft hole 169 is located between the first trigger portion 166 and the second trigger portion 167. A third pin 193 passes through the second trigger shaft hole 169, causing the second trigger 165 to rotate relative to the base 110 about the third pin 193.

[0204] The operation of the pull-out aid 100 according to the first embodiment of this application is described below.

[0205] exist Figures 11A to 11K In the illustrated state, the base 110 of the pull-out aid 100 is coupled to the frame 200, such that the first object 300 on which the base 110 is mounted engages with the second object 400 (not shown) on which the frame 200 is mounted. In other embodiments, the second object 400 has a structure corresponding to the frame 200, in which case the base 110 can also be directly coupled to the second object 400. The handle 130 is in the closed position, so the handle 130 is approximately flush with the first object 300 to save space occupied by the handle 130. The first button 150 is in the pop-up position and is exposed outside the receiving portion 112 of the base 110 for operation. For ease of understanding, Figure 11A The image shows the ejection direction R1 and insertion direction R2 of the pull-out aid 100, and the opening direction R3 and closing direction R4 of the handle 130.

[0206] Reference Figure 11C and Figure 11D With the pawl 120 in the locked position, the first foot 121 is accommodated in the receiving groove 230 of the frame 200 and abuts against the second support portion 220, preventing the puller 100 from detaching from the frame 200. The trigger end 162 of the first trigger 160 abuts against the pawl locking portion 123 to prevent the pawl 120 from rotating toward its unlocking direction R6. As will be described below, by pressing the first button 150, the first trigger 160 rotates toward its release direction R8, and the trigger end 162 disengages from the pawl locking portion 123, thereby allowing the pawl 120 to rotate toward its unlocking direction R6.

[0207] In high-load operating environments, the pawl 120 needs to maintain a loading force on the frame 200, that is, the pawl 120 maintains pressure on the frame 200 in its locking direction R5. Therefore, the pawl 120 itself is subjected to a reaction force in its unlocking direction R6. In other operating environments, the pawl 120 may also be subjected to a force in its unlocking direction R6 due to accidental collisions or other reasons. To this end, the first button 150 and the first trigger 160 of this application provide a function to prevent accidental unlocking. Specifically, the rotational torque of the pawl 120 in the unlocking direction R6 causes the first trigger 160 to rotate in its locking direction R7.

[0208] More specifically, refer to Figure 11C , Figure 11D , Figure 11H , Figure 11I In this configuration, the first button 150 is in the initial position, the first trigger 160 is in the locked position, and the pawl 120 is in the locked position. At this time, an obtuse angle α is formed between the pivot axis of the first button 150, the pivot axis of the first trigger 160, and the contact point where the first trigger 160 acts on the pawl 120. This obtuse angle faces the direction in which the first button 150 is operated. In this embodiment, since the first trigger 160 abuts against the pawl 120 via the first roller 170, the axis of the first roller 170 (i.e., the center of the second pin 192) is considered as the contact point where the first trigger 160 acts on the pawl 120.

[0209] In other words, the angle α formed by the line connecting the center of the first pin 191 to the centerline of the fifth pin 195 and the line connecting the center of the first pin 191 to the center of the second pin 192 is an obtuse angle in the ejection direction in this state. Due to this structure, the torque of the pawl 120 rotating in its unlocking direction R6 tends to rotate the first trigger 160 in its locking direction R7. Moreover, at this time, the trigger end 162 of the first trigger 160 abuts against the extension 124 of the pawl 120, so it cannot rotate in its locking direction R7. Therefore, the pressure of the pawl 120 tends to hold the first trigger 160 in its current position, and thus tends to hold the first button 150 in its current position.

[0210] like Figure 11C and Figure 11D As shown, the first elastic element 181 is a torsion spring disposed between the first button 150 and the first trigger 160, and biases the first trigger 160 towards its locking direction R7. The second elastic element 182 is a compression spring disposed between the first button 150 and the base 110, and biases the first button 150 towards the pop-out position (i.e., downward). Figure 11GIn the embodiment shown, the first elastic element 181 is a leaf spring disposed between the first trigger 160 and the base 110, with one end fixed to the first trigger 160 and the other end abutting against the base 110, thereby biasing the first trigger 160 toward the locking direction R7.

[0211] Reference Figure 11J and Figure 11K The actuator engagement portion 144 of the actuator 140 engages with the pawl engagement portion 125 of the pawl 120, causing the actuator 140 and the pawl 120 to rotate synchronously. The actuation portion 156 of the second button 155 abuts against the second locking portion 142 of the actuator 140, allowing the handle 130 to drive the actuator 140 to rotate. Since the pawl 120 cannot rotate at this time, neither the actuator 140 nor the handle 130 can rotate.

[0212] from Figures 11A to 11K As shown in the diagram, the user presses the first button 150 towards the operating position, causing the pull-out aid 100 to transition to... Figures 12A to 12J The state.

[0213] During this process, the first button 150 moves toward its operating position against the bias of the second elastic element 182, so the first branch 151 moves toward the interior of the puller 100 (i.e., Figure 12C , Figure 12D Above, the end of the first trigger 160 connected to the first button 150 (i.e., the end where the first trigger shaft hole 161 is located) moves inward. Since the first trigger 160 abuts against the extension 124 of the pawl 120, the first trigger 160 rotates in its release direction R8, and the trigger end 162 disengages from the pawl locking part 123. At this time, the included angle α between the pivot axis of the first button 150, the pivot axis of the first trigger 160, and the contact point of the first trigger 160 acting on the pawl 120 becomes greater than 180°, and at this time the positions of the pawl 120, the actuator 140, and the handle 130 do not change.

[0214] from Figures 12A to 12J Starting from the indicated state, the user rotates the handle 130 in the opening direction R3, causing the pull-out aid 100 to transition to... Figures 13A to 13J The state shown.

[0215] During this process, the handle 130 drives the actuator 140 to rotate via the second button 155. The actuator 140 then drives the pawl 120 to rotate in its unlocking direction R6, so that the pawl 120 reaches a position between the locked and unlocked positions. The first foot 121 of the pawl 120 abuts against the first support portion 210 of the frame 200, pushing the puller 100 and the first object 300 on which the puller 100 is mounted towards the ejection direction R1. The puller 100 moves outward relative to the frame 200, but has not yet disengaged from the frame 200. (Refer to...) Figure 13F At this time, the first trigger part 166 of the second trigger 165 has not yet detached from the frame 200, so the second trigger 165 will not prevent the actuator 140 and the handle 130 from rotating.

[0216] from Figures 13A to 13J Starting from the indicated state, the user continues to rotate the handle 130 in the opening direction R3, causing the pull-out aid 100 to transition to... Figures 14A to 14J The state shown.

[0217] During this process, the handle 130 continues to drive the actuator 140 to rotate via the second button 155. The actuator 140 then drives the pawl 120 to rotate in its unlocking direction R6, causing the pawl 120 to fully reach its unlocking position and disengage from the frame 200. (Refer to...) Figure 14F At this time, the first trigger part 166 of the second trigger 165 has not yet detached from the frame 200, so the second trigger 165 will not prevent the actuator 140 and the handle 130 from rotating.

[0218] from Figures 14A to 14J Starting from the indicated state, the user continues to pull the handle 130 in the pop-out direction R1, causing the pull-out aid 100 to transition to... Figures 15A to 15J The state shown.

[0219] During this process, since the chuck 120 has detached from the frame 200, the user can pull the puller 100 out of the frame 200 using the handle 130. (See reference...) Figure 15FAs the puller 100 disengages from the frame 200, the first trigger portion 166 of the second trigger 165 disengages from the frame 200. Therefore, the second trigger 165 rotates in its locking direction, causing the second trigger portion 167 to engage with the third locking portion 143 of the actuator 140 and / or the handle locking portion 138 of the handle 130, thereby holding the handle 130 in the open position. With the handle 130 driving the actuator 140 to rotate, the third locking portion 143 and the handle locking portion 138 are aligned, so the second trigger portion 167 can engage with either the third locking portion 143 or the handle locking portion 138, thus holding the handle 130 in the open position. Therefore, the user can conveniently hold the handle 130 in the open position and move the puller 100 in the ejection or insertion direction using the handle 130 without worrying about the handle 130 accidentally moving to the closed position.

[0220] from Figures 15A to 15J The user inserts the puller 100 into the frame 200 as shown. When the puller 100 is inserted into the frame 200 (at which point the puller 100 has just entered the frame 200), the second trigger 165 abuts against the frame 200 and pivots to the release position to allow the handle 130 and actuator 140 to rotate.

[0221] Then, the user rotates the handle 130 to the closed position, causing the pull-out aid 100 to return to its original position. Figures 11A to 11K The state is shown. During this process, the first foot 121 of the pawl 120 abuts against the second support portion 220 of the frame 200, thereby applying a force to move the puller 100 toward the insertion direction. When the handle 130 moves to the closed position, the pawl 120 also reaches its locked position, thereby stably holding the puller 100 and the first object 300 in the insertion position. At the same time, during the rotation of the pawl 120, the second foot 122 of the pawl 120 abuts against the first trigger 160, causing the first trigger 160 to avoid the second foot 122 under the action of the first elastic member 181. After the second foot 122 passes the first trigger 160, the first trigger 160 returns to its locking position and abuts against the pawl locking portion 123, as shown. Figure 11C and Figure 11D As shown.

[0222] The above describes the process by which the handle 130 drives the claw 120, thereby disengaging the puller 100 from and engaging the frame 200. The following describes another operation of the puller 100.

[0223] from Figures 11A to 11K The user presses the second button 155, which causes the pull-out aid 100 to transition to the state shown. Figures 16A to 16JThe state shown. At this time, the second button 155 moves to its operating position, and the actuating part 156 of the second button 155 does not engage with the second locking part 142 of the actuator 140, so that the handle 130 cannot drive the actuator 140.

[0224] from Figures 16A to 16J Starting from the indicated state, the user rotates handle 130 to its open position, causing the pull-out aid 100 to transition to... Figures 17A to 17J The state shown. At this time, the claw 120 is still engaged with the frame 200, so the puller 100 can be pulled in the pop-out direction by the handle 130, so that the puller 100, the first object 300 and the frame 200 are pulled out together.

[0225] Reference Figures 18A to 19 This application describes a second embodiment of an extraction aid 100. To facilitate understanding of the differences between the embodiments of this application, components corresponding to those in the second and first embodiments will use the same names and reference numerals, while different components will use different reference numerals.

[0226] The second embodiment of the pull-out aid 100 includes a handle 130, a second claw 500, a second button 155, a fourth pin 194, a sixth pin 196, and a fourth elastic member 184.

[0227] The handle 130 is pivotally connected to the second pawl 500 via a sixth pin 196. Specifically, the sixth pin 196 passes through the handle shaft hole 139 of the handle 130 and the pawl shaft hole 509 of the second pawl 500, allowing the handle 130 and the second pawl 500 to rotate relative to each other. (Refer to reference...) Figure 20B The sixth pin 196 can also be installed on the first object 300, so that the handle 130 and the second claw 500 rotate relative to the first object 300.

[0228] The second button 155 is mounted to the handle 130 via the fourth pin 194 and the fourth elastic member 184, allowing the second button 155 to move relative to the handle 130 between an initial position and an operating position. The connection between the second button 155 and the handle 130 is similar to that in the first embodiment, and therefore will not be described again. Unlike the first embodiment, in the second embodiment, the handle 130 is engaged with the second claw 500 via the second button 155 instead of an actuator.

[0229] Reference Figure 20A and Figure 20B When the second button 155 is in its initial position, the actuating part 156 of the second button 155 abuts against the locking part 503 of the second pawl 500. At this time, the handle 130 can rotate the second pawl 500 via the second button 155. (See reference...) Figure 21A and Figure 21BWhen the second button 155 is in the operating position, the actuating part 156 of the second button 155 disengages from the locking part 503 of the second pawl 500. At this time, the handle 130 cannot drive the second pawl 500 to rotate.

[0230] The second pawl 500 is generally disc-shaped and includes a first foot 501, a second foot 502, a pawl locking portion 503, and a pawl shaft hole 509. The first foot 501 and the second foot 502 extend in a direction away from the handle and are opposite to each other. (Refer to reference) Figure 20B The first foot 501 and the second foot 502 can respectively engage with the second object 400, so that the puller 100 can be inserted into or ejected from the second object 400. The pawl locking part 503 is a recessed part adjacent to and engaged with the handle 130. The pawl shaft hole 509 is the rotation center of the second pawl 500.

[0231] The operation of the extraction aid 100 according to the second embodiment is described below. (Refer to...) Figure 22A and Figure 22B At this time, the second claw 500 engages with the second object 400, the handle 130 is in the closed position, and the second button 155 is in the initial position and engaged with the second claw 500.

[0232] from Figure 22A and Figure 22B Starting from the indicated state, the user rotates handle 130 toward the open position, causing the pull-out aid 100 to transition to the open position. Figure 23A and Figure 23B The state shown. During this process, the handle 130 drives the second claw 500 to rotate via the second button 155, and the second foot 502 of the second claw 500 abuts against the second object 400, causing the puller 100 to pop out from the second object 400. From Figure 23A and Figure 23B Starting from the indicated state, the user rotates the handle 130 fully to the open position and uses the handle 130 to pull the second object 400 out of the puller 100, reaching... Figure 24A and Figure 24B The state shown.

[0233] Back Figure 22A and Figure 22B In the state shown, the user presses the second button 155, causing the pull-out aid 100 to reach its position. Figure 25A and Figure 25B The state shown. At this time, the second button 155 disengages from the second jaw 500, preventing the handle 130 from rotating the second jaw 500. From Figure 25A and Figure 25B Starting from the indicated state, the user rotates handle 130 toward the open position, causing the puller 100 to reach... Figure 26A and Figure 26BThe state shown is as follows. At this time, the handle 130 is basically in the open position, and the second claw 500 is still engaged with the second object 400, so the user can pull the first object 300 and the second object 400 through the handle 130.

[0234] It should be understood that although the second embodiment shows the claws directly engaging with the second object, the second object can also be replaced with a frame similar to that in the first embodiment.

[0235] While preferred embodiments have been shown and described herein, it should be understood that these embodiments are given by way of example only. Many variations, modifications, and substitutions will occur to those skilled in the art without departing from the spirit of this invention. Therefore, the appended claims are intended to cover all such variations that fall within the spirit and scope of this invention.

Claims

1. A rescuer (100), characterized in that, The extractor (100) assembly comprises: a base (110) mounted to a first object (300); a jaw (120) at least partially housed in the base (110) and rotatable relative to the base (110) between a locked position and an unlocked position; and a first button (150) operable to move between an initial position and an operating position, the first button (150) in the operating position restricting the jaw (120) in the locked position, wherein a rotational moment of the jaw (120) towards the unlocked position maintains the first button (150) in its initial position.

2. The aid (100) according to claim 1, characterized in that The extractor (100) further comprises: a first trigger (160) connected to the first button (150), the first trigger (160) restricting the jaw (120) in the locked position when the first button (150) is in the initial position, the first trigger (160) being driven by the first button (150) to release the jaw (120) when the first button (150) is in the operating position.

3. The extractor (100) according to claim 2, wherein: the first button (150) is pivotally connected to the base (110), and the first trigger (160) is pivotally connected to the first button (150), a pivot axis of the first button (150), a pivot axis of the first trigger (160), and a contact point of the first trigger (160) acting on the jaw (120) form an obtuse angle facing an operated direction of the first button (150).

4. The extractor (100) according to claim 3, wherein: the extractor (100) comprises a first elastic member (181), the first elastic member (181) being a torsion spring arranged between the first button (150) and the first trigger (160), or being a leaf spring arranged between the base (110) and the first trigger (160), the first elastic member (181) being arranged to bias the first trigger (160) towards a position restricting the jaw (120).

5. The extractor (100) according to claim 3, wherein: the extractor (100) comprises a first roller (170) pivotally connected to an end of the first trigger (160) distal to the first button (150), and the first trigger (160) restricts the jaw (120) by abutting the jaw (120) via the first roller (170).

6. The extractor (100) according to claim 3, wherein: The first button (150) is substantially V-shaped and includes a first branch (151) and a second branch (152) both extending from a pivot axis of the first button (150), wherein the first branch (151) is pivotally connected to the first trigger (160), and the second branch (152) is operable from outside of the extractor (100).

7. The extractor (100) according to claim 6, wherein The extractor (100) includes a second elastic member (182) disposed between the second branch (152) and the base (110) to bias the first button (150) toward the initial position.

8. The extractor (100) according to claim 2, wherein The pawl (120) includes a first foot (121) and a second foot (122), When the pawl (120) rotates between the locked position and the unlocked position, the first foot (121) abuts against a second article (400) or a frame (200) mounted to the second article (400) so that the first article (300) is inserted into or ejected from the second article (400); When the pawl (120) is in the locked position, the first trigger (160) abuts against the second foot (122) to restrict the pawl (120) in the locked position.

9. The extractor (100) according to claim 8, wherein The first foot (121) and the second foot (122) form an angle; The pawl (120) includes a pawl stopper (123) formed as a recess at an end of the second foot (122) away from the first foot (121), and the first trigger (160) abuts against the pawl stopper (123).

10. The extractor (100) according to claim 8, wherein The extractor (100) includes a second roller (175) pivotally connected to an end of the first foot (121) away from the second foot (122), and the first foot (121) abuts against the second article (400) or the frame (200) through the second roller (175).

11. The extractor (100) according to claim 1, wherein The extractor (100) includes a handle (130) and a second trigger (165); The handle (130) is pivotally connected to the base (110) and rotatable between an open position and a closed position, and the handle (130) can drive the pawl (120) to rotate.

12. The extractor (100) according to claim 11, wherein The second trigger (165) is pivotally connected to the base (110). When the puller (100) disengages from the second object (400) or from the frame (200) mounted to the second object (400), the second trigger (165) restricts the handle (130) to the open position and / or the claw (120) to the unlock position. When the puller (100) engages with the second object (400) or the frame (200), the second trigger (165) is driven by the second object (400) or the frame (200) to release the handle (130) and / or the claw (120).

13. The extraction aid (100) according to claim 11, characterized in that, The puller (100) also includes an actuator (140), the claw (120) and the actuator (140) are both fan-shaped and are engaged with each other by a gear structure, and the handle (130) can drive the claw (120) through the actuator (140).

14. A rescuer (100) characterized by The pull-out aid (100) includes: Base (110); A pawl (120) or a second pawl (500) is at least partially housed in the base (110) and is rotatable relative to the base (110) between a locked position and an unlocked position; A handle (130), pivotally connected to the base (110) and rotatable between an open and a closed position; and A second button (155) is connected to the handle (130) and can be operated to move between an initial position and an operating position. When the second button (155) is in the initial position, the handle (130) engages with the pawl (120) or the second pawl (500) to drive the rotation of the pawl (120) or the second pawl (500). When the second button (155) is in the operating position, the handle (130) disengages from the pawl (120) or the second pawl (500).

15. The extraction aid (100) according to claim 14, characterized in that: When the handle (130) is in the open position and disengaged from the pawl (120) or the second pawl (500), the pawl (120) or the second pawl (500) engages with the second object (400) or the frame (200) mounted to the second object (400).

16. The extraction aid (100) according to claim 14, characterized in that: The second button (155) is at least partially housed in the handle (130), and the second button (155) in the initial position is partially exposed outside the handle (130). A fourth elastic element (184) is provided between the second button (155) and the handle (130) to bias the second button (155) toward the initial position.

17. The extraction aid (100) according to claim 14, characterized in that: The second button (155) includes an actuating portion (156) extending toward the claw (120) or the second claw (500); The pawl (120) engages with the actuator (140), and a protruding second locking portion (142) is formed on the outer periphery of the actuator (140). The actuating portion (156) abuts against the second locking portion (142) to drive the pawl (120) through the actuator (140); or The second claw (500) has a protruding claw locking part (503) formed on its outer periphery, and the actuating part (156) abuts against the claw locking part (503) to drive the second claw (500).

18. A component of a lifter (100) characterized by, The pull-out aid (100) assembly includes: The pull-out aid (100) according to any one of claims 1-17; and A frame (200) is mounted to a second object (400), wherein the claws (120) are capable of engaging or disengaging from the frame (200).

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