A self-locking unlocking device, plug-in board card and self-locking unlocking method

Abstract

This invention discloses a self-locking unlocking device, a plug-in card, and a self-locking unlocking method, including a handle 1, a base 2, a locking block 3, and an elastic bracket 4. The locking block 3 includes a force-receiving part 30 and a rotating part 31. One side of the rotating part 31 is connected to the force-receiving part 30, and the other side of the rotating part 31 forms a hook 310. The base 2 is provided with an axial through groove 20. The force-receiving part 30 and the rotating part 31 are disposed in the through groove 20. The handle 1 is movably disposed in the through groove 20, and the force-applying end of the handle 1 is movably disposed in the sliding groove 300 of the force-receiving part 30. One end of the elastic bracket 4 is fixed to the side wall of the base 2, and the other end of the elastic bracket 4 is attached to the side wall of the force-receiving part 30. When the position of the force-applying end of the handle 1 relative to the sliding groove 300 changes, the rotating part 31 can rotate relative to the base 2. This self-locking unlocking device occupies little space, is convenient and quick to unlock, and has high reliability.

Description

Technical Field

[0001] This invention relates to the field of communication equipment, and more particularly to a self-locking unlocking device, a plug-in / plug-out card, and a self-locking unlocking method. Background Technology

[0002] Communication equipment includes a chassis and plug-in cards. The plug-in cards are inserted into the chassis. To facilitate insertion and removal of these cards within the chassis, the front panel of the plug-in cards typically features a plug-in mechanism (e.g., a handle) and a locking mechanism. While existing technologies meet usage requirements to some extent, they still have some drawbacks, including: 1. When the locking mechanism uses spring screws or ordinary screws, installation and removal require hand tightening or the use of a screwdriver, making the process cumbersome and inefficient; 2. When the plug-in mechanism and locking mechanism are separate, they occupy relatively more panel space, reducing panel utilization and affecting the layout of other functional components.

[0003] Therefore, overcoming the shortcomings of existing technologies and solving the aforementioned technical problems is a difficult problem to be solved in this technical field. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to solve the problems of complex disassembly and low assembly efficiency of existing locking structures, and the large amount of panel space occupied when the plug-in structure and the locking structure are laid out separately.

[0005] This invention is implemented as follows:

[0006] In one aspect, a self-locking unlocking device is provided, including a handle 1, a base 2, a locking block 3, and an elastic bracket 4;

[0007] The locking block 3 includes a force-receiving part 30 and a rotating part 31. One side of the rotating part 31 is connected to the force-receiving part 30, and a hook 310 is formed on the other side of the rotating part 31.

[0008] The base 2 is provided with an axial through groove 20, the force-receiving part 30 and the rotating part 31 are provided in the through groove 20, the handle 1 is movably provided in the through groove 20, and the force-applying end of the handle 1 is movably provided in the sliding groove 300 of the force-receiving part 30.

[0009] One end of the elastic bracket 4 is fixed to the side wall of the base 2, and the other end of the elastic bracket 4 is attached to the side wall of the force-bearing part 30.

[0010] When the position of the force-applying end of the handle 1 relative to the sliding groove 300 changes, the rotating part 31 can rotate relative to the base 2.

[0011] Furthermore, the sliding groove 300 is a V-shaped groove, which has an inflection point, a near end point, and a far end point. The near end point and the far end point are distributed on both sides of the inflection point. The near end point is the groove end point of the sliding groove 300 near the rotating part 31, and the far end point is the groove end point of the sliding groove 300 away from the rotating part 31.

[0012] In the self-locking state, the force-applying end of the handle 1 is located at the inflection point;

[0013] In the unlocked state, the force-applying end of the handle 1 abuts against the proximal end or the distal end.

[0014] Furthermore, the self-locking unlocking device also includes a pin 5, one end of the handle 1 is provided with a socket 10, the pin 5 is fixed in the socket 10, and at least one end of the pin 5 is exposed outside the socket 10 to form a force-applying end;

[0015] The exposed end of the pin 5 is slidably connected to the sliding groove 300.

[0016] Furthermore, the force-receiving part 30 includes a first force-receiving structure 301 and a second force-receiving structure 302, both of which are provided with sliding grooves 300; the exposed end of the pin 5 is slidably disposed in the sliding groove 300 of the first force-receiving structure 301, and / or the exposed end of the pin 5 is slidably disposed in the sliding groove 300 of the second force-receiving structure 302.

[0017] Furthermore, the elastic support 4 includes an attachment surface 40, a surrounding portion 41, and an insertion portion 42. The attachment surface 40 is connected to the surrounding portion 41, and the surrounding portion 41 is bent at a preset angle and then connected to the insertion portion 42.

[0018] A slit 21 is provided on the side wall of the base 2. The insertion part 42 is inserted into the slit 21. The surrounding part 41 bypasses the external screw 7 placed inside the rotating part 31. The upper part of the attachment surface 40 is attached to the side wall of the first force-bearing structure 301, and the lower part of the attachment surface 40 is attached to the side wall of the second force-bearing structure 302.

[0019] Furthermore, a first gap 303 is provided between the first force-bearing structure 301 and the second force-bearing structure 302; a second gap 311 is provided in the middle part of the rotating part 31, and the first gap 303 and the second gap 311 are connected.

[0020] The surrounding portion 41 is disposed within the second gap 311, the attaching surface 40 extends from the junction of the second gap 311 and the first gap 303 and attaches to the sidewalls of the first force-bearing structure 301 and the second force-bearing structure 302; the insertion portion 42 extends from the second gap 311.

[0021] Furthermore, the insertion portion 42 and the surrounding portion 41 have the same width, the attachment surface 40 has a width greater than the width of the surrounding portion 41, and the width of the surrounding portion 41 matches the height of the second gap 311.

[0022] Furthermore, the base 2 is also provided with a first through hole 22, which penetrates the upper and lower side walls of the base 2, and the projection of the first through hole 22 on the base 2 is located near the inflection point of the sliding groove 300.

[0023] In a second aspect, a plug-in board is provided, wherein at least one corner of the plug-in board 6 is provided with an installation area, and the installation area is provided with the self-locking unlocking device described in the first aspect.

[0024] The mounting area of ​​the plug-in card 6 has a notch that aligns with the hook 310, so that the hook 310 can lock and unlock the plug-in card 6.

[0025] Thirdly, a self-locking and unlocking method for a plug-in board is provided. The self-locking and unlocking method is applied to the plug-in board 6 described in the second aspect. In the self-locking state, the force-applying end of the handle 1 is located at the inflection point of the sliding groove 300.

[0026] The self-locking unlocking method includes:

[0027] When the plug-in card 6 is inserted into the corresponding chassis, the handle 1 is pressed inward, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to the near end of the sliding groove 300. The force-receiving part 30 compresses the elastic bracket 4 and drives the rotating part 31 to rotate, causing the hook 310 to retract into the notch, so as to switch to the unlocked state.

[0028] When the plug-in card 6 is engaged with the plug-in in the chassis, the handle 1 is released, the elastic bracket 4 returns to its original deformation, and the force-applying end of the handle 1 slides from the near end of the sliding groove 300 to the inflection point of the sliding groove 300, returning to the self-locking state.

[0029] When the plug-in card 6 is pulled out of the corresponding chassis, the handle 1 is pulled outward, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to the far end of the sliding groove 300. The force-receiving part 30 compresses the elastic bracket 4 and causes the card block 3 to rotate along the rotating part 31, so that the hook 310 retracts into the notch to switch to the unlocked state.

[0030] After the plug-in board 6 is separated from the plug-in in the chassis, the handle 1 is released, the elastic bracket 4 returns to its original shape, and drives the force-applying end of the handle 1 to slide from the far end of the sliding groove 300 to the inflection point of the sliding groove 300, returning to the self-locking state.

[0031] Compared with the prior art, the above technical solution adopted in this invention has the following beneficial effects: In the self-locking unlocking device of this invention, the handle 1 for plugging and unplugging and the hook 310 for locking are integrated, eliminating the need for separate layout and saving space. When the position of the force-applying end of the handle 1 relative to the sliding groove 300 changes, the rotating part 31 can rotate relative to the base 2. In use, simply pulling or pressing the handle 1 is sufficient to unlock. After releasing the force applied to the handle 1, it automatically returns to the self-locking state under the action of the elastic bracket 4. The unlocking operation is convenient, quick, and highly reliable.

[0032] Furthermore, the position of the internal pin 5 can be observed through the first through hole 22, which allows for timely detection of failures and ensures high reliability. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a partial exploded structural diagram of a self-locking unlocking device provided in an embodiment of the present invention;

[0035] Figure 2 This is an exploded structural diagram of a self-locking unlocking device provided in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of a self-locking unlocking device provided in an embodiment of the present invention, wherein the force-applying end of the handle is located at the inflection point;

[0037] Figure 4A schematic diagram of the structure of a self-locking unlocking device provided in an embodiment of the present invention, wherein the force-applying end of the handle is located at the proximal end;

[0038] Figure 5 A schematic diagram of the structure of a self-locking unlocking device handle with the force-applying end located at the distal end, provided in an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the card block structure of a self-locking unlocking device provided in an embodiment of the present invention;

[0040] Figure 7 This is an exploded structural diagram of another self-locking unlocking device provided in an embodiment of the present invention;

[0041] Figure 8 This is a partial exploded structural diagram of another self-locking unlocking device provided in an embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of a plug-in card equipped with a self-locking unlocking device, provided by an embodiment of the present invention.

[0043] Figure 10 Provided for embodiments of the present invention Figure 9 A magnified structural diagram of region A in the middle;

[0044] Figure 11 This is a schematic diagram of the handle structure of a self-locking unlocking device provided in an embodiment of the present invention;

[0045] Figure 12 This is a schematic diagram of the structure of the base of a self-locking unlocking device provided in an embodiment of the present invention;

[0046] Figure 13 This is a schematic diagram of the base of another self-locking unlocking device provided in an embodiment of the present invention;

[0047] Figure 14 This is a schematic diagram of another plug-in card equipped with a self-locking unlocking device provided in an embodiment of the present invention;

[0048] Figure 15 A schematic diagram of another plug-in card equipped with a self-locking unlocking device provided in an embodiment of the present invention;

[0049] Figure 16 A schematic diagram of another plug-in card equipped with a self-locking unlocking device provided in an embodiment of the present invention;

[0050] Figure 17 A flowchart illustrating a self-locking unlocking method for a plug-in / plug-out card provided in an embodiment of the present invention;

[0051] The attached figures are labeled as follows:

[0052] Handle 1, Socket 10, Handle 11, Sliding block 12, Sliding rod 13, Base 2, Through groove 20, Slide groove 200, First mounting groove 201, Second mounting groove 202, Limiting structure 203, Connecting groove 2031, Gap 21, First through hole 22, Second through hole 23, Locking block 3, Force-bearing part 30, Sliding groove 300, First force-bearing structure 301, Second force-bearing structure 302, First gap 303, Rotating part 31, Hook 310, Second gap 311, Elastic bracket 4, Attaching surface 40, Surrounding part 41, Insertion part 42, Pin 5, Pull-out plate 6, External screw 7. Detailed Implementation

[0053] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1:

[0056] See Figure 1 and Figure 2 This embodiment provides a self-locking unlocking device, including a handle 1, a base 2, a locking block 3, and an elastic bracket 4. The locking block 3 includes a force-receiving part 30 and a rotating part 31. One side of the rotating part 31 is connected to the force-receiving part 30, and the other side of the rotating part 31 forms a hook 310. The base 2 is provided with an axial through groove 20. The force-receiving part 30 and the rotating part 31 are disposed in the through groove 20. The handle 1 is movably disposed in the through groove 20, and the force-applying end of the handle 1 is movably disposed in the sliding groove 300 of the force-receiving part 30. One end of the elastic bracket 4 is fixed to the side wall of the base 2, and the other end of the elastic bracket 4 is attached to the side wall of the force-receiving part 30. When the position of the force-applying end of the handle 1 relative to the sliding groove 300 changes, the rotating part 31 can rotate relative to the base 2.

[0057] In one embodiment, the force-receiving part 30 and the rotating part 31 are integrally formed. The force-receiving part 30 is used to receive external force. Under the action of external force, the force-receiving part 30 will move diagonally downward or diagonally upward, thereby driving the rotating part 31 to rotate relative to the base 2, so as to change the position of the hook 310 and realize the unlocking or self-locking function.

[0058] In actual use, when no external force is applied to the handle 1, the self-locking unlocking device remains stable in the self-locking state under the action of the elastic bracket 4; when an external force is applied to the handle 1, the elastic bracket 4 will be compressed and deformed, and the self-locking unlocking device will switch to the unlocking state. After the external force is released, the elastic bracket 4 will restore its deformation, so that the self-locking unlocking device will return to the self-locking state.

[0059] In one embodiment, the force-applying end of the handle 1 can be a pin 5, which is disposed at the end of the handle 1 to form the force-applying end. The pin 5 can slide within the sliding groove 300 to apply external force to the force-receiving part 30.

[0060] In the self-locking unlocking device of this invention, the handle 1 for insertion and removal and the hook 310 for locking are integrated, eliminating the need for separate layout and saving space. When the position of the force-applying end of the handle 1 relative to the sliding groove 300 changes, the rotating part 31 can rotate relative to the base 2. In use, simply pulling or pressing the handle 1 is sufficient to unlock. After releasing the force applied to the handle 1, it automatically returns to the self-locking state under the action of the elastic bracket 4. The unlocking operation is convenient, quick, and highly reliable.

[0061] like Figure 1 As shown, one end of the handle 1 is provided with a socket 10, the pin 5 is fixed in the socket 10, and at least one end of the pin 5 is exposed outside the socket 10 to form a force-applying end; the exposed end of the pin 5 is slidably connected to the sliding groove 300.

[0062] In this embodiment, a socket 10 can be provided at the end of the handle 1 to fix the pin 5 in the socket 10. For ease of installation, the pin 5 can also be a threaded post, and the socket 10 can be a threaded hole, so that the pin 5 is fixed in the socket 10 by a threaded connection. During the manufacturing stage, a protruding post can also be formed at the end of the handle 1, that is, the protruding post is integrally formed with the end of the handle 1. The protruding post can slide in the sliding groove 300 to form the force-applying end. The specific implementation method can be determined according to the actual situation and is not specifically limited here.

[0063] The sliding groove 300 can be an arc-shaped groove, a V-shaped groove, etc. (Combined with...) Figures 3-5Taking the sliding groove 300 as a V-shaped groove as an example, the V-shaped groove has an inflection point (i.e., point O), a near end point (i.e., point N), and a far end point (i.e., point P). The near end point and the far end point are distributed on both sides of the inflection point. The near end point is the groove end point of the sliding groove 300 near the rotating part 31, and the far end point is the groove end point of the sliding groove 300 away from the rotating part 31. The groove end point refers to the position where the sliding groove 300 ends.

[0064] like Figure 3 As shown, in the self-locking state, the force-applying end of the handle 1 (i.e., the pin 5) is located at the inflection point; as Figure 4 As shown, in the unlocked state, the force-applying end of the handle 1 (i.e., the pin 5) abuts against the proximal end; as Figure 5 As shown, in the unlocked state, the force-applying end of the handle 1 (i.e., the pin 5) abuts against the distal end.

[0065] like Figure 3 As shown, the elastic bracket 4 is in its natural state, neither stretched nor compressed. When the elastic bracket 4 is in its natural state, the elastic bracket 4 is at its maximum opening angle, and the self-locking unlocking device is in a self-locking state. The pin 5 is at the inflection point of the sliding groove 300. At this time, the hook 310 on the locking block 3 extends out of the outer side of the base 2 and engages with the plug-in in the chassis through the hook 310, thereby locking the plug-in card 6.

[0066] Combination Figure 2 and Figure 4 Pushing the handle 1 forward causes it to move along the through groove 20 of the base 2, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to its proximal end. The force-receiving part 30 compresses the elastic bracket 4 and drives the rotating part 31 to rotate, causing the hook 310 to retract, thus switching to the unlocked state. Because the elastic bracket 4, which is in close contact with the force-receiving part 30, is compressed, its opening angle decreases, placing the entire elastic bracket 4 in a compressed state. At this time, the hook 310 of the locking block 3 retracts, no longer protruding from the outer edge of the plug-in card 6, thereby unlocking the plug-in card.

[0067] Combination Figure 2 and Figure 5Pull the handle 1 outward, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to the far end of the sliding groove 300. The force-receiving part 30 compresses the elastic bracket 4 and causes the locking block 3 to rotate along the rotating part 31, causing the locking hook 310 to retract, thereby switching to the unlocked state. Due to the compression, the elastic bracket 4, which is in close contact with the force-receiving part 30, has a smaller opening angle, so that the elastic bracket 4 is in a compressed state. At this time, the locking hook 310 of the locking block 3 retracts, that is, it does not protrude from the outer edge of the plug-in card, thereby realizing the unlocking of the plug-in card.

[0068] That is, it can be unlocked in two ways. Figure 4 The unlocking method shown is applicable to inserting the self-locking unlocking device into the corresponding chassis; Figure 5 The unlocking method shown is applicable to removing the self-locking unlocking device from the corresponding chassis. A more suitable unlocking method can be selected according to different usage scenarios. For more specific unlocking methods, please refer to Example 2, which will not be repeated here.

[0069] See Figure 6 To ensure a larger force application area and easier unlocking, the force-receiving part 30 includes a first force-receiving structure 301 and a second force-receiving structure 302, both of which are provided with sliding grooves 300; the pin 5 (e.g. Figure 8 The exposed end of the pin 5 is slidably disposed within the sliding groove 300 of the first force-bearing structure 301, and / or, the exposed end of the pin 5 is slidably disposed within the sliding groove 300 of the second force-bearing structure 302. To achieve more stable sliding, both ends of the pin 5 are exposed outside the insertion hole 10, with one exposed end slidably disposed within the sliding groove 300 of the first force-bearing structure 301 and the other exposed end slidably disposed within the sliding groove 300 of the second force-bearing structure 302.

[0070] See Figure 7 and Figure 8 The elastic support 4 includes an attachment surface 40, a surrounding portion 41, and an insertion portion 42. The attachment surface 40 is connected to the surrounding portion 41, and the surrounding portion 41 is bent at a preset angle and then connected to the insertion portion 42. A gap 21 is provided on the side wall of the base 2, and the insertion portion 42 is inserted into the gap 21. The surrounding portion 41 bypasses the external screw 7 (e.g., screw 7) housed in the rotating portion 31. Figure 10 As shown, the upper part of the attachment surface 40 is attached to the side wall of the first force-bearing structure 301, and the lower part of the attachment surface 40 is attached to the side wall of the second force-bearing structure 302.

[0071] In one embodiment, the gap 21 matches the thickness of the insertion portion 42. The elastic bracket 4 can be formed by bending a metal spring, and the preset angle can be around 100°, which can be determined according to the actual situation and is not specifically limited here.

[0072] When the elastic support 4 is in its natural state, the attachment surface 40 is attached to the corresponding side wall. Under the action of external force, the force-receiving part 30 will apply force to the elastic support 4, thereby compressing the elastic support 4.

[0073] The insertion portion 42 and the surrounding portion 41 have the same width, the attachment surface 40 has a width greater than the surrounding portion 41, and the width of the surrounding portion 41 matches the height of the second gap 311. More specifically, the tail of the attachment surface 40 extends into a short transition structure, which connects to the surrounding portion 41, and the width of the transition structure is equal to that of the surrounding portion 41.

[0074] Continue reading Figures 6-8 A first gap 303 is provided between the first force-bearing structure 301 and the second force-bearing structure 302; a second gap 311 is provided in the middle part of the rotating part 31, and the first gap 303 and the second gap 311 are connected; the surrounding part 41 is disposed in the second gap 311, the attaching surface 40 extends from the junction of the second gap 311 and the first gap 303, and is attached to the sidewalls of the first force-bearing structure 301 and the second force-bearing structure 302; the insertion part 42 extends from the second gap 311.

[0075] like Figure 11 As shown, in order to enable the handle 1 of the present invention to move axially along the through groove 20 of the base 2, the handle 1 includes a handle 11, a sliding block 12 and a sliding rod 13; one end of the handle 11 is connected to one end of the sliding block 12, the other end of the sliding block 12 is connected to one end of the sliding rod 13, and the insertion hole 10 is provided at the end of the sliding rod 13.

[0076] like Figure 12As shown, the through groove 20 includes a sliding groove 200, a first mounting groove 201, and a second mounting groove 202 that are interconnected. A limiting structure 203 is also provided between the sliding groove 200 and the first mounting groove 201. A connecting groove 2031 is provided on the limiting structure 203, which connects the sliding groove 200 and the first mounting groove 201. The handle 11 is located outside the base 2. The sliding block 12 is slidably disposed in the sliding groove 200. The sliding rod 13 is slidably disposed in the connecting groove 2031 and the first mounting groove 201. The first mounting groove 201 accommodates the force-bearing part 30, and the second mounting groove 202 accommodates the rotating part 31. The hook 310 on the rotating part 31 is located outside the base 2. The cross-sectional size of the connecting groove 2031 is smaller than the cross-sectional size of the sliding block 12 to achieve the limiting function. The sliding groove 200, the first mounting groove 201 and the second mounting groove 202 can all be rectangular grooves, and the connecting groove 2031 is a circular groove.

[0077] Furthermore, such as Figure 13 As shown, the base 2 is also provided with a first through hole 22 and a second through hole 23. Both the first through hole 22 and the second through hole 23 penetrate the upper and lower side walls of the base 2. The first through hole 22 is located on the side wall corresponding to the first mounting groove 201, and the second through hole 23 is located on the side wall corresponding to the second mounting groove 202. The second through hole 23 is used for external screws 7 to pass through in order to fix the self-locking unlocking device on the plug-in plate; the first through hole 22 is used to assist in installing the pin 5 in the insertion hole 10.

[0078] In the prior art, when the locking structure is concealed, failure cannot be detected, resulting in poor reliability. To solve the aforementioned problem, the projection of the first through hole 22 on the base 2 is located near the inflection point of the sliding groove 300. More preferably, when the self-locking unlocking device is in the self-locking state, the projection of the first through hole 22 on the base 2 covers the inflection point of the sliding groove 300, so as to facilitate observation of the position of the pin 5.

[0079] In this embodiment, the position of the internal pin 5 can be observed through the first through hole 22, which can detect failures in a timely manner and ensure high reliability.

[0080] Example 2:

[0081] In conjunction with Example 1, Figure 2 , Figures 14-16This embodiment also provides a plug-in card 6, characterized in that at least one corner of the panel of the plug-in card 6 is provided with an installation area, and the installation area is provided with a self-locking unlocking device as described in Embodiment 1; the installation area of ​​the plug-in card 6 has a notch (not shown in the figure), the notch is aligned with the hook 310, so that the hook 310 can lock and unlock the plug-in card 6. The installation area is formed by hollowing out a portion of the corner structure of the panel. To prevent the base 2 from rotating, the height of the installation area matches the base 2 to clamp the base 2.

[0082] like Figure 14 The two corners of the panel of the plug-in board 6 are provided with installation areas, and the two installation areas are provided with self-locking and unlocking devices as described in Embodiment 1. The self-locking and unlocking devices are provided on both sides of the plug-in board 6, which is suitable for situations where the module span is large and the plug-in board 6 has a large insertion and extraction force.

[0083] like Figure 15 and Figure 16 Each corner of the panel of the plug-in card 6 is provided with an installation area, and the installation area is provided with a self-locking unlocking device as described in Embodiment 1.

[0084] The installation area is provided with corresponding countersunk holes, through which the self-locking unlocking device is installed on the plug-in plate 6 via the countersunk holes and the external screws 7. Specifically, the external screws 7 pass through the countersunk holes, the second through hole 23 on the lower side wall of the base 2, the through hole on the rotating part 31 (not shown in the figure), and the second through hole 23 on the upper side wall of the base 2, and place a washer and nut to install the self-locking unlocking device on the plug-in plate 6.

[0085] Example 3:

[0086] Combining Embodiment 1 and Embodiment 2, Figure 2 and Figure 17 This embodiment provides a self-locking and unlocking method for a plug-in board. The self-locking and unlocking method is applied to the plug-in board described in Embodiment 2. In the self-locking state, the force-applying end of the handle 1 is located at the inflection point of the sliding groove 300.

[0087] like Figure 17 As shown, the self-locking unlocking method includes:

[0088] Step 101: When the plug-in card 6 is inserted into the corresponding chassis, press the handle 1 inward, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to the near end of the sliding groove 300. The force-receiving part 30 compresses the elastic bracket 4 and drives the rotating part 31 to rotate, causing the hook 310 to retract into the notch, so as to switch to the unlocked state.

[0089] Step 102: After the plug-in board 6 is engaged with the plug-in in the chassis, release the handle 1. The elastic bracket 4 returns to its original shape, causing the force-applying end of the handle 1 to slide from the near end of the sliding groove 300 to the inflection point of the sliding groove 300, and return to the self-locking state.

[0090] Step 103: When the plug-in card 6 is pulled out of the corresponding chassis, the handle 1 is pulled outward, causing the force-applying end of the handle 1 to slide from the inflection point of the sliding groove 300 to the far end of the sliding groove 300. The force-receiving part 30 compresses the elastic bracket 4 and causes the card block 3 to rotate along the rotating part 31, so that the hook 310 retracts into the notch to switch to the unlocked state.

[0091] Step 104: After the plug-in board 6 is separated from the plug-in in the chassis, the handle 1 is released, the elastic bracket 4 returns to its original deformation, and the force-applying end of the handle 1 slides from the far end of the sliding groove 300 to the inflection point of the sliding groove 300, returning to the self-locking state.

[0092] When inserting the plug-in card 6, the operator only needs to press the handle 1, and the hook 310 on the card block 3 will automatically retract. The operator can push the plug-in card 6 to move along the slot in the chassis. After it is in place, release the handle 1. Under the action of the elastic bracket 4, the hook 310 rotates in the opposite direction and extends, thereby completing the self-locking of the plug-in card 6 with the components inside the chassis.

[0093] When it is necessary to remove the plug-in card 6, the operator only needs to pull the handle 1 outward, and the hook 310 on the card block 3 will automatically retract inward, separating the hook 310 from the accessories inside the chassis, so that the plug-in card 6 can be easily pulled out of the chassis. The entire installation and unloading process is convenient and quick, which optimizes the production process and improves production efficiency.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-locking and unlocking device, characterized in that, Includes handle (1), base (2), locking block (3) and flexible bracket (4); The locking block (3) includes a force-receiving part (30) and a rotating part (31). One side of the rotating part (31) is connected to the force-receiving part (30), and a hook (310) is formed on the other side of the rotating part (31). The base (2) is provided with an axial through groove (20), the force-receiving part (30) and the rotating part (31) are provided in the through groove (20), the handle (1) is movably provided in the through groove (20), and the force-applying end of the handle (1) is movably provided in the sliding groove (300) of the force-receiving part (30). One end of the elastic bracket (4) is fixed to the side wall of the base (2), and the other end of the elastic bracket (4) is attached to the side wall of the force-bearing part (30). When the position of the force-applying end of the handle (1) relative to the sliding groove (300) changes, the rotating part (31) can rotate relative to the base (2). The sliding groove (300) is a V-shaped groove with an inflection point, a near end point, and a far end point. The near end point and the far end point are distributed on both sides of the inflection point. The near end point is the groove end point of the sliding groove (300) near the rotating part (31), and the far end point is the groove end point of the sliding groove (300) away from the rotating part (31). In the self-locking state, the force-applying end of the handle (1) is located at the inflection point. In the unlocking state, the force-applying end of the handle (1) abuts against the near end point or the far end point.

2. The self-locking and unlocking device according to claim 1, characterized in that, The self-locking unlocking device also includes a pin (5), one end of the handle (1) is provided with a socket (10), the pin (5) is fixed in the socket (10), and at least one end of the pin (5) is exposed outside the socket (10) to form a force-applying end; The exposed end of the pin (5) is slidably connected to the sliding groove (300).

3. The self-locking and unlocking device according to claim 2, characterized in that, The force-bearing part (30) includes a first force-bearing structure (301) and a second force-bearing structure (302). Both the first force-bearing structure (301) and the second force-bearing structure (302) are provided with sliding grooves (300). The exposed end of the pin (5) is slidably disposed in the sliding groove (300) of the first force-bearing structure (301), and / or the exposed end of the pin (5) is slidably disposed in the sliding groove (300) of the second force-bearing structure (302).

4. The self-locking and unlocking device according to claim 3, characterized in that, The elastic support (4) includes an attachment surface (40), a surrounding part (41) and an insertion part (42). The attachment surface (40) is connected to the surrounding part (41), and the surrounding part (41) is bent at a preset angle and then connected to the insertion part (42). A slit (21) is provided on the side wall of the base (2), the insertion part (42) is inserted into the slit (21), the surrounding part (41) bypasses the external screw (7) placed inside the rotating part (31), the upper part of the attachment surface (40) is attached to the side wall of the first force-bearing structure (301), and the lower part of the attachment surface (40) is attached to the side wall of the second force-bearing structure (302).

5. The self-locking and unlocking device according to claim 4, characterized in that, A first gap (303) is provided between the first force-bearing structure (301) and the second force-bearing structure (302); a second gap (311) is provided in the middle part of the rotating part (31), and the first gap (303) and the second gap (311) are connected; The surrounding part (41) is disposed in the second gap (311), the attaching surface (40) extends from the junction of the second gap (311) and the first gap (303) and attaches to the side walls of the first force-bearing structure (301) and the second force-bearing structure (302); the insertion part (42) extends from the second gap (311).

6. The self-locking and unlocking device according to claim 5, characterized in that, The insertion part (42) and the surrounding part (41) have the same width, the attachment surface (40) has a width greater than the width of the surrounding part (41), and the width of the surrounding part (41) matches the height of the second slit (311).

7. The self-locking unlocking device according to any one of claims 1-6, wherein the base (2) is further provided with a first through hole (22), the first through hole (22) penetrates the upper and lower side walls of the base (2), and the projection of the first through hole (22) on the base (2) is located near the inflection point of the sliding groove (300).

8. A plug-in board, characterized in that, At least one corner of the plug-in card (6) is provided with an installation area, and the installation area is provided with a self-locking unlocking device as described in any one of claims 1-7; The mounting area of ​​the plug-in card (6) has a notch that aligns with the hook (310) so that the hook (310) can lock and unlock the plug-in card (6).

9. A self-locking unlocking method for a plug-in / plug-out card, characterized in that, The self-locking unlocking method is applied to the plug-in board (6) as described in claim 8. In the self-locking state, the force-applying end of the handle (1) is located at the inflection point of the sliding groove (300). The self-locking unlocking method includes: When the plug-in card (6) is inserted into the corresponding chassis, the handle (1) is pressed inward, causing the force-applying end of the handle (1) to slide from the inflection point of the sliding groove (300) to the near end of the sliding groove (300). The force-receiving part (30) compresses the elastic bracket (4) and causes the rotating part (31) to rotate, so that the hook (310) retracts into the notch to switch to the unlocked state. When the plug-in board (6) is engaged with the plug-in in the chassis, the handle (1) is released, the elastic bracket (4) returns to its deformation, and the force-applying end of the handle (1) slides from the near end of the sliding groove (300) to the inflection point of the sliding groove (300), and returns to the self-locking state. When the plug-in card (6) is pulled out of the corresponding chassis, the handle (1) is pulled outward, and the force-applying end of the handle (1) slides from the inflection point of the sliding groove (300) to the far end of the sliding groove (300). The force-receiving part (30) compresses the elastic bracket (4) and drives the card block (3) to rotate along the rotating part (31), so that the hook (310) retracts into the notch to switch to the unlocked state. When the plug-in board (6) is separated from the plug-in in the chassis, the handle (1) is released, the elastic bracket (4) returns to its deformation, and the force-applying end of the handle (1) slides from the far end of the sliding groove (300) to the inflection point of the sliding groove (300), and returns to the self-locking state.

Images