Plugging-assisting self-locking wrench

Abstract

The utility model provides a self-locking wrench assisting insertion and extraction, and relates to the technical field of auxiliary tools. The self-locking wrench is arranged in the mode that in the process that the plug-in box is inserted into the machine case, the abutting part abuts against the machine case and enables the self-locking wrench to rotate, so that the first clamping part is clamped with a first matching part on the machine case, the second clamping part is clamped with a second matching part on the plug-in box, the first board card and the second board card are connected in an inserted mode, and the plug-in box and the machine case are locked. According to the technical scheme, the abutting part of the self-locking wrench abuts against the case, the plug-in box can generate acting force opposite to the insertion direction, the second board card of the plug-in box can be in butt joint with the first board card in the case at a constant speed in the process, and the situation that the second board card is damaged due to excessive force is avoided. Besides, after the self-locking wrench is rotated, the first clamping part is clamped with the first matching part on the case, and the second clamping part is clamped with the second matching part on the plug-in box, so that the plug-in box and the case are locked, and the stability of connection between the plug-in box and the case is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tools, and particularly relates to a self-locking wrench for assisting plugging and unplugging. Background Art

[0002] On a standard cabinet in the industrial technology field, each functional unit usually adopts a modular design, so that each functional unit is designed into a pluggable chassis. A connector is provided at the tail end of the chassis to dock with the gold fingers of the board cards in the cabinet. During the process of inserting the chassis into the cabinet, if the force is too strong and the connector has not yet docked with the gold fingers, it is very easy to cause damage to the connector. At the same time, when the chassis is pulled out, if the connector is unevenly stressed, it will also cause damage to the connector. Therefore, there is an urgent need to provide a wrench that can assist in the insertion and extraction of the chassis. Summary of the Utility Model

[0003] An object of the utility model is to provide a self-locking wrench for assisting plugging and unplugging, and solve the technical problem that the connector of the chassis is easily damaged when the chassis is inserted into the cabinet in the prior art.

[0004] A further object of the utility model is to make the process of inserting the chassis into the cabinet smoother.

[0005] In particular, the utility model provides a self-locking wrench for assisting plugging and unplugging. The self-locking wrench is used to plug the first board card in the chassis and the second board card on the chassis, and lock the chassis and the cabinet.

[0006] The self-locking wrench is rotatably connected to the chassis, and includes an abutting portion, a first clamping portion and a second clamping portion. The self-locking wrench is configured such that during the process of inserting the chassis into the cabinet, the abutting portion abuts against the cabinet and causes the self-locking wrench to rotate, so that the first clamping portion is clamped with the first matching portion on the cabinet and the second clamping portion is clamped with the second matching portion on the chassis, thereby enabling the first board card and the second board card to be plugged, and locking the chassis and the cabinet.

[0007] Optionally, it further includes:

[0008] A first handle, the first handle is rotatably connected to the chassis, and has the abutting portion and the first clamping portion;

[0009] A second handle, the second handle is rotatably connected to the first handle, and has the second clamping portion.

[0010] Optionally, it further includes:

[0011] An elastic member, the elastic member is respectively connected to the first handle and the second handle, and the elastic member is arranged to be in an extended state when the second engaging portion is engaged with the second mating portion; when the second handle is forced to rotate, it is compressed so that the second engaging portion disengages from the second mating portion.

[0012] Optionally, a slot is provided on the chassis, and the abutting portion of the self-locking wrench is located in the slot.

[0013] Optionally, the abutting portion has a first arc surface, the first arc surface abuts against the side wall of the slot, and is arranged to move relative to the side wall of the slot when the plug-in box is pushed, so that the self-locking wrench rotates relative to the plug-in box.

[0014] Optionally, the first mating portion is plate-shaped;

[0015] The first engaging portion is provided at a position close to the abutting portion and is in a groove shape, and the first mating portion is located inside the first engaging portion.

[0016] Optionally, the first engaging portion has a first end portion and a second end portion arranged oppositely. The first engaging portion is arranged such that during the process of inserting the plug-in box into the chassis, the first end portion abuts against one side of the first mating portion, and after the self-locking wrench rotates, the first end portion and the second end portion respectively abut against two side surfaces of the first mating portion, so that the first engaging portion is engaged with the first mating portion.

[0017] Optionally, the second mating portion is convex and has a second arc surface, the second engaging portion is hook-shaped, and the second engaging portion is arranged to move along the second arc surface when the self-locking wrench rotates until it is engaged with the second mating portion.

[0018] Optionally, the head of the first handle is rotatably connected to the plug-in box, and the abutting portion and the first engaging portion are both provided at the head of the first handle;

[0019] The second engaging portion is provided at the head of the second handle, and the pivot point of the first handle and the second handle is located at the middle position of the first handle and the second handle.

[0020] Optionally, the elastic member is located at the tails of the first handle and the second handle.

[0021] In this utility model, the self-locking wrench is rotatably connected to the plug-in box and includes an abutting portion, a first clamping portion, and a second clamping portion. The self-locking wrench is configured such that during the process of inserting the plug-in box into the chassis, the abutting portion abuts against the chassis and causes the self-locking wrench to rotate, so that the first clamping portion is clamped with the first mating portion on the chassis and the second clamping portion is clamped with the second mating portion on the plug-in box, thereby enabling the first circuit board to be inserted into the second circuit board and locking the plug-in box and the chassis. In the above technical solution, the abutting portion of the self-locking wrench abuts against the chassis, which can cause the plug-in box to generate a force in the direction opposite to the insertion direction. This process can enable the second circuit board of the plug-in box to be evenly butted with the first circuit board in the chassis, avoiding damage to the second circuit board due to excessive force. In addition, after the self-locking wrench rotates, the first clamping portion is clamped with the first mating portion on the chassis, and the second clamping portion is clamped with the second mating portion on the plug-in box, thereby realizing the locking of the plug-in box and the chassis and ensuring the stability of the connection between the plug-in box and the chassis.

[0022] Further, in this utility model, the second mating portion is convex and has a second arc surface. The second clamping portion has a hook portion. The second clamping portion is configured such that when the self-locking wrench rotates, the hook portion moves along the second arc surface until it is clamped with the second mating portion. Since the second clamping portion moves along the arc surface, the process of inserting the plug-in box into the chassis can be made smoother.

[0023] From the following detailed description of specific embodiments of the present utility model in conjunction with the accompanying drawings, those skilled in the art will become more clearly aware of the above and other objects, advantages, and features of the present utility model. Description of the Drawings

[0024] Hereinafter, some specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0025] Figure 1 is a schematic connection diagram of the self-locking wrench, the plug-in box, and the chassis from an angle according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic connection diagram of the self-locking wrench, the plug-in box, and the chassis from another angle according to an embodiment of the present utility model;

[0027] Figure 3 is a schematic structural diagram of the self-locking wrench according to an embodiment of the present utility model;

[0028] Figure 4 is Figure 1 a schematic enlarged view of part A therein;

[0029] Figure 5 is Figure 2 a schematic enlarged view of part B therein.

[0030] Reference numerals:

[0031] 100 - Self - locking wrench, 200 - Card cage, 300 - First circuit board, 400 - Chassis, 310 - Gold finger, 220 - Connector, 210 - PCB board, 230 - Second circuit board, 10 - First handle, 20 - Second handle, 30 - First connecting member, 40 - Elastic member, 50 - Second connecting member, 11 - Abutting portion, 111 - First arc surface, 12 - First clamping portion, 121 - First end, 122 - Second end, 21 - Second clamping portion, 211 - Third arc surface, 410 - Groove, 420 - First mating portion, 240 - Second mating portion, 241 - Second arc surface. Detailed implementation manners

[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0034] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0035] Unless otherwise clearly defined and limited, terms such as "connection" and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0036] Unless otherwise limited, all terms (including technical terms and scientific terms) used in the description of this embodiment have the same meanings as those generally understood by those of ordinary skill in the technical field to which this application belongs.

[0037] Figure 1 is a schematic connection diagram at an angle of the self-locking wrench 100, the plug-in box 200, and the chassis 400 according to an embodiment of the present utility model. Figure 2 is a schematic connection diagram at another angle of the self-locking wrench 100, the plug-in box 200, and the chassis 400 according to an embodiment of the present utility model. Figure 3 is a schematic structural diagram of the self-locking wrench 100 according to an embodiment of the present utility model. Figure 4 is Figure 1 a schematic enlarged view of part A in Figure 5 is Figure 2 a schematic enlarged view of part B in

[0038] Such as Figures 1 to 5As shown, in a specific embodiment, the self-locking wrench 100 is used to plug the first board 300 in the chassis 400 into the second board 230 on the plug-in box 200, and lock the plug-in box 200 and the chassis 400. The self-locking wrench 100 is rotatably connected to the plug-in box 200, and includes an abutting portion 11, a first clamping portion 12 and a second clamping portion 21. The self-locking wrench 100 is arranged such that during the process of inserting the plug-in box 200 into the chassis 400, the abutting portion 11 abuts against the chassis 400 and causes the self-locking wrench 100 to rotate, so that the first clamping portion 12 is clamped with the first mating portion 420 on the chassis 400 and the second clamping portion 21 is clamped with the second mating portion 240 on the plug-in box 200, thereby enabling the first board 300 and the second board 230 to be plugged together, and locking the plug-in box 200 and the chassis 400. Here, when inserting, manually push the plug-in box 200 to insert into the chassis 400 from right to left, and when pulling out, manually pull the plug-in box 200 to the right. The first board 300 has a gold finger 310, the second board 230 includes a connector 220 and a PCB board 210, the connector 220 is connected to the PCB board 210, and the PCB board 210 is connected to the plug-in box 200 by bolts. During the process of inserting the plug-in box 200 into the chassis 400, the connector 220 is plugged into the gold finger 310. When the plug-in box 200 is pulled out, the connector 220 is separated from the gold finger 310.

[0039] In this embodiment, the abutting portion 11 of the self-locking wrench 100 abuts against the chassis 400, which can cause the plug-in box 200 to generate a force in the direction opposite to the insertion direction. This process can enable the second board 230 of the plug-in box 200 to be evenly docked with the first board 300 in the chassis 400, avoiding damage to the second board 230 due to excessive force. In addition, after the self-locking wrench 100 rotates, the first clamping portion 12 is clamped with the first mating portion 420 on the chassis 400, and the second clamping portion 21 is clamped with the second mating portion 240 on the plug-in box 200, thereby realizing the locking of the plug-in box 200 and the chassis 400 and ensuring the stability of the connection between the plug-in box 200 and the chassis 400.

[0040] See Figure 1 and Figure 2 As shown in and, in some embodiments, a self-locking wrench 100 is provided at each of the opposite ends of the plug-in box 200. When the plug-in box 200 is inserted into the chassis 400, the two self-locking wrenches 1100 move simultaneously and in opposite rotation directions to jointly insert the plug-in box 200 into the chassis 400.

[0041] See Figures 3 to 5, in some embodiments, the self-locking wrench 100 further includes a first handle 10 and a second handle 20. The first handle 10 is rotatably connected to the plug box 200 and has an abutting portion 11 and a first engaging portion 12. The second handle 20 is rotatably connected to the first handle 10 and has a second engaging portion 21. Here, the first handle 10 is rotatably connected to the plug box 200 through a first connecting member 30, and the second handle 20 is connected to the first handle 10 through a second connecting member 50. When the abutting portion 11 of the self-locking wrench 100 located above the plug box 200 abuts against the chassis 400 and the plug box 200 continues to be subjected to an external force to the left, the self-locking wrench 100 will rotate clockwise around the first connecting member 30.

[0042] In some embodiments, the self-locking wrench 100 further includes an elastic member 40. The elastic member 40 is respectively connected to the first handle 10 and the second handle 20, and the elastic member 40 is arranged to be in an extended state when the second engaging portion 21 is engaged with the second mating portion 240; when the second handle 20 is forced to rotate, it is compressed so that the second engaging portion 21 disengages from the second mating portion 240. Here, the elastic member 40 is connected between the first handle 10 and the second handle 20. When the second engaging portion 21 is engaged with the second mating portion 240, since the elastic member 40 is in an extended state, there is a resilience force, which will cause the second engaging portion 21 to be tightly engaged with the second mating portion 240 to achieve self-locking.

[0043] In some embodiments, the elastic member 40 is located at the tails of the first handle 10 and the second handle 20. When it is necessary to unlock the self-locking wrench 100, pinch the tails of the first handle 10 and the second handle 20 and compress the elastic member 40 to disengage the second engaging portion 21 from the second mating portion 240, thereby unlocking the self-locking wrench 100. Here, the elastic member 40 is a spring. In other embodiments, the elastic member 40 can also be other components having the same elastic properties as the spring.

[0044] In some embodiments, the second mating portion 240 is convex and has a second arc surface 241. The second engaging portion 21 is hook-shaped, and the second engaging portion 21 is arranged to move along the second arc surface 241 when the self-locking wrench 100 rotates until it is engaged with the second mating portion 240. Here, since the second engaging portion 21 moves along an arc surface, the process of inserting the plug box 200 into the chassis 400 can be made smoother. Specifically, the second mating portion 240 protrudes towards the chassis 400, and an installation groove is provided beside the second mating portion 240. The second engaging portion 21 of the self-locking wrench 100 is located in the installation groove.

[0045] In a preferred embodiment, the second engaging portion 21 has a third arc surface 211. During the rotation of the self-locking wrench 100, the third arc surface 211 slides along the second arc surface 241 until the second engaging portion 21 hooks the second engaging portion 240. When the self-locking wrench 100 is unlocked, the third arc surface 211 also slides along the second arc surface 241 until the second engaging portion 21 disengages from the second engaging portion 240.

[0046] In some embodiments, a slot 410 is provided on the chassis 400, and the abutting portion 11 of the self-locking wrench 100 is located within the slot 410. It can be understood that the abutting portion 11 moves inside the slot 410.

[0047] In some embodiments, the abutting portion 11 has a first arc surface 111, and the first arc surface 111 abuts against the side wall of the slot 410 and is configured to move relative to the side wall of the slot 410 when the plug-in box 200 is pushed, so that the self-locking wrench 100 rotates relative to the plug-in box 200. It can be understood that during the process of inserting the plug-in box 200 into the chassis 400, there is no need to manually operate the self-locking wrench 100. Since the abutting portion 11 has the first arc surface 111, the self-locking wrench 100 will rotate when the first arc surface 111 moves relative to the side wall of the slot 410.

[0048] In some embodiments, the first engaging portion 420 is plate-shaped. The first engaging portion 12 is disposed at a position close to the abutting portion 11 and is in the shape of a groove, and the first engaging portion 420 is located inside the first engaging portion 12. Refer to Figures 1 to 5 , the first engaging portion 420 is equivalent to forming the side wall of the slot 410, and the first engaging portion 12 and the first engaging portion 420 can be clamped tightly while the abutting portion 11 rotates.

[0049] In some embodiments, the first engaging portion 12 has a first end portion 121 and a second end portion 122 arranged opposite to each other. The first engaging portion 12 is configured such that during the process of inserting the plug-in box 200 into the chassis 400, the first end portion 121 abuts against one side of the first engaging portion 420, and after the self-locking wrench 100 rotates, the first end portion 121 and the second end portion 122 respectively abut against the two side surfaces of the first engaging portion 420, so that the first engaging portion 12 is clamped with the first engaging portion 420.

[0050] In some embodiments, the head of the first handle 10 is rotatably connected to the plug-in box 200, and both the abutting portion 11 and the first engaging portion 12 are disposed at the head of the first handle 10. The second engaging portion 21 is disposed at the head of the second handle 20, and the pivot point of the first handle 10 and the second handle 20 is located at the middle position of the first handle 10 and the second handle 20.

[0051] Refer to Figure 1Part A can be understood as follows: When the chassis insert 200 is not inserted into the chassis 400, the entire self-locking wrench 100 is in a state where the left side is lower and the right side is higher. That is to say, the tails of the first handle 10 and the second handle 20 are located at the upper right of the heads. At this time, the first end 121 of the first engaging portion 12 abuts against the side wall of the first mating portion 420. When the chassis insert 200 is inserted into the chassis 400 from right to left, the abutting portion 11 of the self-locking wrench 100 abuts against the side wall of the slot 410, causing the self-locking wrench 100 to rotate clockwise. The entire self-locking wrench 100 switches from the state where the left side is lower and the right side is higher to the state where the left side is higher and the right side is lower until the second end 122 of the first engaging portion 12 and the second end 122 are both engaged with the first mating portion 420, and the second engaging portion 21 hooks the second mating portion 240, thereby realizing the locking of the chassis insert 200 and the chassis 400. During the process of inserting the chassis insert 200 into the chassis 400 from right to left, as the chassis insert 200 moves into the chassis 400, the connector 220 of the second circuit board 230 gradually approaches the gold fingers 310 of the first circuit board 300 and docks with the gold fingers 310 of the first circuit board 300. When the self-locking wrench 100 completes self-locking, the connector 220 and the gold fingers 310 complete the plugging. When unlocking, pinch the tails of the first handle 10 and the second handle 20, compress the elastic member 40, and cause the self-locking wrench 100 to rotate counterclockwise with the first connecting member 30 as the axis. The third arc surface 211 of the second engaging portion 21 begins to contact the second arc surface 241 of the second mating portion 240 until it disengages from the second mating portion 240. During the movement of the self-locking wrench 100, the connector 220 of the second circuit board 230 gradually disengages from the gold fingers 310 of the first circuit board 300. When the connector 220 completely disengages from the gold fingers 310, the chassis insert 200 can be quickly pulled out.

[0052] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the disclosed content of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A self-locking wrench for facilitating insertion and extraction, characterized in that The self-locking wrench is used to plug a first board in a chassis into a second board on an insertion box and lock the insertion box and the chassis; The self-locking wrench is rotatably connected to the insertion box and includes an abutting portion, a first engaging portion, and a second engaging portion. The self-locking wrench is configured such that during the process of inserting the insertion box into the chassis, the abutting portion abuts against the chassis and causes the self-locking wrench to rotate, so that the first engaging portion engages with a first mating portion on the chassis and the second engaging portion engages with a second mating portion on the insertion box, thereby enabling the first board and the second board to be plugged and locking the insertion box and the chassis.

2. The self-locking wrench according to claim 1, wherein It further includes: A first handle, the first handle is rotatably connected to the insertion box and has the abutting portion and the first engaging portion; A second handle, the second handle is rotatably connected to the first handle and has the second engaging portion.

3. The self-locking wrench according to claim 2, wherein, It further includes: An elastic member, the elastic member is respectively connected to the first handle and the second handle. The elastic member is configured to be in an extended state when the second engaging portion engages with the second mating portion; and is compressed when the second handle is forced to rotate, so that the second engaging portion disengages from the second mating portion.

4. The self-locking wrench according to claim 1, wherein A slot is provided on the chassis, and the abutting portion of the self-locking wrench is located in the slot.

5. The self-locking wrench according to claim 4, wherein The abutting portion has a first arc surface, the first arc surface abuts against the side wall of the slot and is configured to move relative to the side wall of the slot when the insertion box is pushed, so that the self-locking wrench rotates relative to the insertion box.

6. The self-locking wrench according to claim 1, characterized in that, The first mating portion is in a plate shape; The first engaging portion is provided at a position close to the abutting portion and is in a groove shape, and the first mating portion is located inside the first engaging portion.

7. The self-locking wrench according to claim 6, wherein The first engaging portion has a first end portion and a second end portion arranged oppositely. The first engaging portion is configured such that during the process of inserting the insertion box into the chassis, the first end portion abuts against one side of the first mating portion, and after the self-locking wrench rotates, the first end portion and the second end portion respectively abut against two side surfaces of the first mating portion, thereby enabling the first engaging portion to engage with the first mating portion.

8. The self-locking wrench according to claim 1, wherein The second mating portion is in a convex shape and has a second arc surface, the second engaging portion is in a hook shape, and the second engaging portion is configured to move along the second arc surface when the self-locking wrench rotates until it engages with the second mating portion.

9. The self-locking wrench according to claim 3, wherein The head of the first handle is rotatably connected to the insertion box, and the abutting portion and the first engaging portion are both provided at the head of the first handle; The second engaging portion is provided at the head of the second handle, and the pivot point of the first handle and the second handle is located at the middle position of the first handle and the second handle.

10. The self-locking wrench according to claim 9, characterized in that the elastic member is located at the tails of the first handle and the second handle.

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